CN111330750B - Integrated two-stage high-efficiency cyclone separator - Google Patents
Integrated two-stage high-efficiency cyclone separator Download PDFInfo
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- CN111330750B CN111330750B CN202010297872.4A CN202010297872A CN111330750B CN 111330750 B CN111330750 B CN 111330750B CN 202010297872 A CN202010297872 A CN 202010297872A CN 111330750 B CN111330750 B CN 111330750B
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- cyclone separator
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- separator
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- 238000000926 separation method Methods 0.000 claims abstract description 60
- 239000010865 sewage Substances 0.000 claims abstract description 33
- 238000005192 partition Methods 0.000 claims description 19
- 230000006340 racemization Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 100
- 239000000428 dust Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/30—Recirculation constructions in or with cyclones which accomplish a partial recirculation of the medium, e.g. by means of conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C7/00—Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Cyclones (AREA)
Abstract
The invention discloses an integrated two-stage high-efficiency cyclone separator, which comprises a shell (1), a gas inlet (11) arranged in the middle of the shell, a gas outlet (12) arranged at the upper part of the shell, a sewage outlet (13) arranged at the bottom of the shell and an ash bucket (10) connected with the sewage outlet; the shell (1) is internally provided with a preseparation device (2), a first-stage cyclone separator (3), a riser (4) and a second-stage cyclone separator (7), the first-stage cyclone separator is arranged in the preseparation device, and a preseparation cavity (21) is formed between the preseparation device and the first-stage cyclone separator; the first-stage cyclone separator penetrates through the sewage outlet and is communicated with the ash bucket, the first-stage cyclone separator is communicated with the second-stage cyclone separator through the riser, and the gas inlet penetrates through the shell and is communicated with the preseparator. The invention realizes multistage separation in one device, has high separation efficiency and low running resistance, and can stably run for a long period; the impurities collected by each stage of separation are collected together and are discharged in a concentrated way through the same drain outlet.
Description
Technical Field
The invention relates to gas-solid/gas-liquid separation equipment, in particular to an integrated two-stage high-efficiency cyclone separator.
Background
The cyclone separator is used as an important gas-solid separation or gas-liquid separation device, and has the advantages of simple structure, no moving parts, high separation efficiency, convenient maintenance, capability of working at high temperature and high pressure and the like, thereby being widely applied to the industrial fields of chemical industry, petroleum, environmental protection, food and the like. The working principle is that dust-containing or liquid-containing air flow enters the cyclone separator through the air inlet, air flow rotating around the axis of the cyclone separator is formed in the cyclone separator, dust or liquid drops are thrown to the outer wall under the action of centrifugal force, the dust or liquid drops are discharged downwards through the dust discharge port, and clean air is discharged through the central exhaust pipe.
The following conditions are often encountered in industrial production: (1) The gas contains higher-concentration impurities, so that solid particles or liquid drops carried in the gas need to be removed as much as possible, the purification of the organic silicon monomer synthesis gas can be realized, the dust concentration can reach 3Kg/m 3, and the partial working conditions are even higher; such as recovery of regenerated catalyst in a catalytic cracking system. (2) The design of the separator is extremely high, and the separation efficiency is not lower than 99.9%, such as separator equipment arranged in a natural gas transmission and distribution station, gas purification equipment in front of a gas turbine unit, a compressor front-mounted dust-removing and liquid-removing separator and the like. For the above working conditions, it is difficult to meet the design requirement of a single cyclone separator, and the conventional design is to connect a plurality of cyclone separators in series to perform multi-stage separation so as to achieve the required separation efficiency. However, although the design can solve the problem of separation efficiency, the series connection of the cyclone separators can lengthen the pipeline path of the gas, so that the pressure drop of the whole separation equipment is increased, the temperature of the dust-containing gas is reduced more, and high-boiling substances in the gas can be condensed and separated out to cause the blockage of the equipment or the pipeline, thereby influencing the normal operation of the equipment. In addition, the use of a plurality of separators in series not only improves the operation difficulty of equipment, but also increases the investment cost of the equipment. For some technical improvement projects, due to the limitation of the field area, it is difficult to install a plurality of cyclone separators in series.
Chinese patent application No. cn201711458589.X discloses a two-stage cyclone separator for high temperature oil and gas dust removal, wherein the two-stage cyclone separator is uniformly distributed around the primary cyclone pre-dust removal separator, and the two-stage cyclone separator is coaxially and transversely arranged, which is unfavorable for reducing the diameter of the equipment housing. If the cyclone separator is used under the working condition of large air quantity, the diameter of the equipment shell is required to be very large due to the arrangement space constraint of the two-stage cyclone separators, and the occupied area of the equipment is increased. If the high-temperature and high-pressure working condition is met, the wall thickness of the shell can be increased along with the increase of the diameter of the shell when the intensity of equipment is calculated, which means that the material consumption of the separator is increased and the equipment investment cost can be increased.
Chinese patent application CN201910987333.0 discloses a multi-stage direct current cyclone separator for separating solid or liquid impurities existing in a long-distance natural gas pipeline, so as to ensure long-period stable operation of a compressor group of a booster station. The direct-current cyclone separator solves the problem of ash leakage at the bottom of the separator by designing the conical cover, and a plurality of separation cavities are arranged to realize multistage separation, so that the separator has higher separation efficiency. But has the following disadvantages: (1) The separator divides the inner cavity of the shell into a plurality of separation cavities connected end to end, and the bottom of each stage of separation cavity is provided with a drain outlet, namely the separator is provided with a plurality of drain outlets, so that the operation difficulty of a drain procedure is increased, and the labor intensity is high. Meanwhile, all sewage outlets are required to be provided with valve meters, and the purchase cost and maintenance cost of the valve meters occupy a large proportion in equipment investment, especially in high-pressure working conditions, and are quite low. (2) The inlet of each stage of separation cavity of the separator is provided with a spiral blade or a guide vane blade to enable the inlet air to rotate to realize centrifugal separation, but the guide blade is easy to block, particularly when liquid with high viscosity (such as tar and the like) is contained in gas phase, the guide blade is easy to block by liquid mixing dust, and if the guide blade in the separator is blocked, the cleaning difficulty is very high, so that the long-period stable operation of the equipment is unfavorable.
Disclosure of Invention
The invention aims to provide an integrated two-stage efficient cyclone separator which can realize multi-stage separation in the same equipment, has high separation efficiency and low running resistance, and can stably run for a long period; meanwhile, the impurities collected by each stage of separation are collected together and are intensively discharged through the same sewage outlet, so that the device has the advantages of compact structural design, small occupied area, low investment cost and the like.
The invention is realized in the following way:
An integrated two-stage efficient cyclone separator comprises a shell, a gas inlet arranged in the middle of the shell, a gas outlet arranged at the upper part of the shell, a sewage outlet arranged at the bottom of the shell and an ash bucket connected to the sewage outlet; the shell is internally provided with a preseparation device, a first-stage cyclone separator, a riser and a second-stage cyclone separator, the upper part of the first-stage cyclone separator is coaxially arranged in the preseparation device, the middle part of the outer wall of the first-stage cyclone separator is connected with the bottom of the preseparation device in a sealing way, and the top of the first-stage cyclone separator is connected with the top of the preseparation device in a sealing way, so that a preseparation cavity is formed between the preseparation device and the first-stage cyclone separator; the bottom of the first-stage cyclone separator penetrates through the sewage outlet and is communicated with the ash bucket, the top of the first-stage cyclone separator is communicated with the second-stage cyclone separator through the riser, and the gas inlet penetrates through the shell and is communicated with the preseparator; the top of casing is equipped with the manhole, and the middle part of casing is equipped with a plurality of access hole.
The first-stage cyclone separator comprises a cyclone inlet, a cyclone outlet pipe, a cyclone cylinder, a cyclone cone, a cyclone blow-off pipe and a top plate; the first-stage cyclone separator and the preseparation device share a top plate, a cyclone outlet pipe is coaxially arranged at the top of a cyclone body, and the cyclone outlet pipe penetrates through the top plate and is communicated with the riser; the upper ends of the rotary cone bodies are coaxially connected to the lower ends of the rotary cylinder bodies, the upper ends of the rotary drain pipes are coaxially connected to the lower ends of the rotary cone bodies and penetrate through the drain ports, and the lower ends of the rotary drain pipes are coaxially inserted into the ash hoppers.
The rotary inlet is positioned above the gas inlet, the rotary inlet is tangential with the cylinder wall of the rotary cylinder body, and the cutting-in direction of the rotary inlet is opposite to the cutting-in direction of the gas inlet; the gas inlet is bent to form a downward inclined gas channel, and is tangentially connected with the cylinder wall of the pre-separator cylinder of the pre-separator, and the downward inclination angle of the gas inlet is 15-25 degrees.
The rotary sewage draining pipe and the sewage draining outlet are coaxially arranged, and a plurality of fixing blocks are uniformly distributed in a gap between the rotary sewage draining pipe and the sewage draining outlet at intervals.
The preseparator comprises a preseparator cylinder body, a reflecting screen, a pollution discharge cone and a pollution discharge hole; the upper end of the sewage cone is coaxially connected with the lower end of the pre-separator cylinder, the lower end of the sewage cone is hermetically fixed on a rotary cylinder body of the first-stage cyclone separator, and an annular pre-separation cavity is formed among the inner wall of the pre-separator cylinder body, the inner wall of the sewage cone, the outer wall of the rotary cylinder body of the first-stage cyclone separator and the inner wall of a top plate of the first-stage cyclone separator; the reflecting screen is of a circular ring structure, the inner ring of the reflecting screen is arranged on the outer wall of a rotary cylinder body and is flush with the upper end of the pollution discharge cone, and an annular gap is reserved between the outer ring of the reflecting screen and the pre-separator cylinder body; the plurality of blow-down holes are circumferentially and uniformly distributed on the rotary cylinder body, and the blow-down holes are positioned between the lower end of the blow-down cone and the reflecting screen.
The second-stage cyclone separator consists of a plurality of small-diameter cyclone units, the small-diameter cyclone units are circumferentially and uniformly distributed on the outer side of the gas lift pipe, and each small-diameter cyclone unit is fixed on the gas lift pipe and communicated with the interior of the gas lift pipe.
The small-diameter cyclone unit comprises a cyclone unit inlet, a cyclone unit outlet pipe and a cyclone unit drain pipe; the small-diameter cyclone unit is fixedly connected with the gas lift pipe through a cyclone unit inlet and is communicated with the interior of the gas lift pipe; an upper baffle plate is arranged at the upper part of the shell, the upper baffle plate is positioned below the gas outlet, one end of a cyclone unit outlet pipe is communicated with the small-diameter cyclone unit, the other end of the cyclone unit outlet pipe penetrates through the upper baffle plate and is communicated with the gas outlet, and the cyclone unit outlet pipe is fixedly connected with the upper baffle plate; the middle part of the shell is provided with a lower baffle plate, the lower baffle plate is positioned above the preseparator, one end of the cyclone unit blow-off pipe is communicated with the small-diameter cyclone unit, and the other end of the cyclone unit blow-off pipe penetrates through the lower baffle plate and is fixedly connected with the lower baffle plate. The upper partition plate and the lower partition plate can be used for fixing the small-diameter cyclone unit and the riser; the lower partition plate is provided with a balance hole; the cyclone unit blow-down pipe is of a bending structure, so that the lower end of the cyclone unit blow-down pipe extends obliquely to the direction of the inner wall of the shell, the lower end of the cyclone unit blow-down pipe extends to the position right above an annular space formed between the shell and the preseparation device, and the bending angle of the cyclone unit blow-down pipe is 145-165 degrees.
The upper end of the first cyclone separator is provided with a first air inlet pipe, the lower end of the first cyclone separator is provided with a second air outlet pipe, and the upper end of the first cyclone separator is provided with a first air outlet pipe; the diameter of the gas lift pipe is larger than that of the spinning outlet pipe, and the ratio of the diameter of the gas lift pipe to that of the spinning outlet pipe is 1.2-1.6.
The lower end of the inside of the riser is coaxially provided with a racemization device which is of a hollow conical structure with a narrow upper part and a wide lower part, and a plurality of circular through holes are uniformly distributed on the conical surface of the racemization device; the aperture ratio of the conical surface of the racemer is more than 80%, the diameter of each circular through hole is not less than 5mm, the diameter of the bottom of the racemer is equal to that of the riser, and the ratio of the height of the racemer to the diameter of the bottom is 1.0-1.5.
The ash bucket is internally provided with a level meter, and the level meter is higher than the lower end of a primary cyclone separator cyclone blow-down pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention has the advantages that as the pre-separation cavity is arranged, the dust-containing liquid/gas can be pre-separated, larger particles in the gas are removed firstly, and the separation load of the subsequent two-stage cyclone separator is reduced; the gas inlet is tangential to the side wall of the barrel of the preseparator through the tangential arrangement, so that the gas is rotated to realize centrifugal separation, and meanwhile, the gas inlet is inclined downwards by a certain angle to enable the gas flow to rotate and ensure the downward rotation, so that the downward inclination angle can largely eliminate the formation of ash rings at the top of the preseparation cavity, ensure that particles enter the lower part of the preseparation cavity downwards due to absolute refraction when encountering rebound of the barrel wall of the cyclone barrel, and effectively reduce dust carrying amount of short-circuit flow; and the gas inlet is positioned below the cyclone inlet, so that the formation of short-circuit flow can be obviously reduced, and the separation efficiency of the cyclone separator is improved.
2. The gas inlet only passes through the shell and is not directly tangent to the shell, the gas inlet belongs to an eccentric hole, hole reinforcement calculation still belongs to conventional calculation for the pressure vessel, SW6 process equipment strength calculation software can be used for calculation, finite element analysis calculation is not needed, the design difficulty of the pressure vessel is reduced, and the cyclone separator can be suitable for working conditions of high temperature and high pressure.
3. According to the cyclone separator, the reflecting screen is arranged at the bottom of the pre-separation cavity, so that separated dust (liquid) falls into the pollution discharge cone along the annular gap between the inner wall of the barrel of the pre-separator and the reflecting screen, when downward rotating airflow encounters the reflecting screen, the direction is reversed, and upward rotation starts along the barrel, so that the collected dust or liquid drops are effectively prevented from being rolled up and taken away again after entering the pollution discharge cone, the phenomenon of bottom entrainment is avoided, and the separation efficiency of the cyclone separator is improved. When the ascending air flow reaches the top of the pre-separation cavity, the ascending air flow enters the first-stage cyclone separator, and the direction of the inlet is changed sharply to enter the inlet because the cutting direction of the inlet is opposite to the rotating direction of the air flow in the pre-separation cavity, so that the small particles which are not separated in the air flow are thrown to the inner wall of the pre-separation cylinder body at the moment by utilizing different inertia forces of solid particles or liquid drops and the air, and are further separated, and fall into a pollution discharge cone along the descending air flow, thereby further improving the separation efficiency.
4. The first-stage cyclone separator of the invention adopts a plurality of inlets, so that the sectional area of the inlets is increased, the airflow speed of the inlets is reduced, the resistance of the separator is reduced, the axisymmetry of the flow field in the cyclone separator is enhanced, the dust carrying amount of short-circuit flow is reduced, and the separation performance is improved.
5. The invention is provided with the racemizer, the ascending rotating air flow is forcedly divided into a plurality of small air flows through the plurality of circular through holes of the racemizer, and the shredded air flows are converged in the air lift pipe again and are changed into a direct current state from a rotating state after being converged in the air lift pipe, so that the energy consumption caused by the fact that the air enters the air lift pipe and still keeps higher rotating strength is avoided, and the pressure loss of the air in the air lift pipe is reduced; meanwhile, compared with the rotary air flow, the straight air flow is more beneficial to uniformly distributing the air flow entering each small-diameter cyclone unit, so that the pressure drop of each small-diameter cyclone unit is almost the same, the mutual interference among the small-diameter cyclone units is avoided, the phenomena of air leakage (downward exhaust) and air blow-by (upward air intake) are avoided, and the separation performance of the separator is further ensured; in addition, the diameter of the gas lift pipe is larger than that of the cyclone outlet pipe, the speed of the gas at the gas lift pipe is obviously lower than that of the gas at the cyclone outlet pipe, and the speed reduction of the gas is more beneficial to reducing the resistance, so that the gas amount entering each cyclone unit with small diameter is kept consistent.
6. As the invention adopts the second-stage cyclone separator formed by connecting a plurality of small-diameter cyclone units in parallel, namely the second-stage cyclone separator is similar to a multi-tube cyclone separator, the smaller the diameter of a cyclone separator cylinder body is, the stronger the centrifugal force field formed inside is, the higher the efficiency of particles by the separator is, so that the multi-tube cyclone separator is used as the third-stage separation of the separator of the invention, the extremely high trapping capacity for fine particles in gas is realized, and the total separation efficiency can reach 99.9 percent in cooperation with the prior two-stage separation.
7. The invention is only provided with one sewage outlet, and impurities separated by the pre-separation cavity are discharged into the first-stage cyclone separator through the sewage outlet and are discharged into the ash bucket through the one-rotation sewage pipe together with dust collected by the first-stage cyclone separator; and impurities separated by the second-stage cyclone separator fall into the bottom of the shell through an annular space formed between the shell and the pre-separator cavity and are discharged into the ash bucket through the sewage outlet, so that the unified discharge of the multi-stage separated impurities is realized. Meanwhile, the bending structure of the blow-off pipe of the cyclone unit extends to the upper part of the annular gap between the shell and the preseparator, so that the accumulation of materials at the top of the top plate is avoided.
8. The invention adopts the level meter, a section of material seal height is always kept in the ash bucket, the first-stage cyclone separator is blocked from gas channeling through the material seal by inserting the first-stage drain pipe below the material seal height, and the separation efficiency of the first-stage cyclone separator and the second-stage cyclone separator is reduced because the gas is discharged from the bottom of the first-stage drain pipe and is channeled into the small-diameter cyclone unit through the cyclone unit drain pipe due to unbalanced pressure in the first-stage cyclone separator and the second-stage cyclone separator.
In summary, the invention makes the gas containing dust or liquid enter the pre-separation chamber through the gas inlet in the middle of the shell to form the first separation, then makes the gas enter the first cyclone separator arranged coaxially with the pre-separation chamber to perform the second separation, makes the separated gas enter the second cyclone separator composed of a plurality of small-diameter cyclone units through the riser and completes the third separation. Clean gas is discharged through a gas outlet above the shell, and impurities collected by each stage of separation are collected in the ash bucket and discharged. Compared with the common cyclone separator, the cyclone separator has ultrahigh separation efficiency, reduces the pressure loss caused by serial connection of the multi-stage external cyclone separator, saves the occupied area of the equipment and reduces the investment cost of the equipment.
Drawings
FIG. 1 is a cross-sectional view of an integrated two stage high efficiency cyclone separator of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1 (one embodiment);
FIG. 4 is a cross-sectional view B-B of FIG. 1 (another embodiment);
FIG. 5 is a cross-sectional view C-C of FIG. 1 (one embodiment);
FIG. 6 is a cross-sectional view C-C of FIG. 1 (another embodiment);
FIG. 7 is an enlarged layout of FIG. 1;
FIG. 8 is a sectional view of D-D of FIG. 7;
FIG. 9 is a cross-sectional view of E-E of FIG. 1;
FIG. 10 is a front view of a small diameter cyclone unit in an integrated two stage high efficiency cyclone separator of the present invention;
Figure 11 is a cross-sectional view of a racemizer in an integrated two stage high efficiency cyclone of the present invention.
In the figure, a shell body 1, a gas inlet 11, a gas outlet 12, a blow-down outlet 13, a manhole 14, a manhole 15, a pre-separator 2, a pre-separation cavity 21, a reflecting screen 22, a blow-down cone 23, a blow-down hole 24, a pre-separator cylinder 25, a first-stage cyclone separator 3, a first-stage cyclone inlet 31, a first-stage cyclone outlet pipe 32, a first-stage cyclone cylinder 33, a first-stage cyclone cone 34, a first-stage blow-down pipe 35, a top plate 36, a gas pipe 4, a racemization device 5, a circular through hole 51, a lower partition plate 6, a balance hole 6, a second-stage cyclone separator 7, a small-diameter cyclone unit 71, a cyclone unit inlet 711, a cyclone unit outlet pipe 712, a cyclone unit 713, a partition plate 8, a fixed block 9, a dust hopper 10, a level gauge 101 and a dust hopper blow-down outlet 102.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, an integrated two-stage efficient cyclone separator comprises a housing 1, a gas inlet 11 arranged in the middle of the housing 1, a gas outlet 12 arranged at the upper part of the housing 1, a sewage outlet 13 arranged at the bottom of the housing 1, and an ash bucket 10 connected to the sewage outlet 13; the shell 1 is internally provided with a preseparation device 2, a first-stage cyclone separator 3, a riser 4 and a second-stage cyclone separator 7, the upper part of the first-stage cyclone separator 3 is coaxially arranged in the preseparation device 2, the middle part of the outer wall of the first-stage cyclone separator 3 is connected with the bottom of the preseparation device 2 in a sealing way, and the top of the first-stage cyclone separator 3 is connected with the top of the preseparation device 2 in a sealing way, so that a preseparation cavity 21 is formed between the preseparation device 2 and the first-stage cyclone separator 3; the bottom of the first-stage cyclone separator 3 penetrates through a sewage outlet 13 and is communicated with an ash bucket 10, the top of the first-stage cyclone separator 3 is communicated with the second-stage cyclone separator 7 through a riser 4, gas communication between the first-stage cyclone separator 3 and the second-stage cyclone separator 7 is realized, and a gas inlet 11 penetrates through the shell 1 and is communicated with the preseparation 2.
The first-stage cyclone separator 3 comprises a cyclone inlet 31, a cyclone outlet pipe 32, a cyclone cylinder 33, a cyclone cone 34, a cyclone drain pipe 35 and a top plate 36; the first-stage cyclone separator 3 and the preseparation device 2 share a top plate 36, a cyclone outlet pipe 32 is coaxially arranged at the top of a cyclone body 33, and the cyclone outlet pipe 32 penetrates through the top plate 36 and is communicated with the riser 4; the plurality of the first rotary inlets 31 are circumferentially and uniformly distributed at the top of the first rotary cylinder body 33, the first rotary cone 34 is of a cone structure with a wide upper part and a narrow lower part, the upper end of the first rotary cone 34 is coaxially connected with the lower end of the first rotary cylinder body 33, the upper end of the first rotary drain pipe 35 is coaxially connected with the lower end of the first rotary cone 34 and penetrates through the drain outlet 13, and the lower end of the first rotary drain pipe 35 is coaxially inserted into the ash bucket 10.
The above-mentioned one-turn inlet 31 is located above the gas inlet 11, which can reduce the formation of short-circuit flow and improve the separation efficiency, the one-turn inlet 31 is tangential to the wall of the one-turn cylinder 33, and the cutting direction of the one-turn inlet 31 is opposite to the cutting direction of the gas inlet 11, i.e. when the cutting direction of the gas inlet 11 is clockwise, the cutting direction of the one-turn inlet 31 is counterclockwise, and vice versa. The gas needs to change direction sharply to enter a cyclone inlet 31, and the small particles which are not separated in the gas are thrown away from the gas flow to the inner wall of the preseparator 2 at the moment and further separated by utilizing the difference between solid particles or liquid drops and the inertia force of the gas, so that the gas falls into the pollution discharge cone 23 along the downstream gas flow, and the separation efficiency is further improved.
The number of the first cyclone inlets 31 is at least two, so that the sectional area of the gas inlet of the first cyclone separator 3 can be increased, the inlet airflow speed is reduced, and the resistance of the separator is reduced. Referring to fig. 3, as a preferred embodiment, three spinning inlets 31 are provided, so that the axial symmetry of the flow field inside the cyclone separator is enhanced, and the dust carrying amount of the short-circuit flow is reduced, thereby improving the separation performance. Referring to fig. 4, as another preferred embodiment, a spinning inlet 31 is provided with four spinning inlets.
Referring to fig. 2, the gas inlet 11 is bent to form a downward inclined gas channel, and the gas inlet 11 is tangentially connected to the wall of the preseparation cylinder 25 of the preseparation device 2. Preferably, the downward inclination angle α of the gas inlet 11 is 15 ° to 25 °. The downward inclination of the gas inlet 11 enables the gas flow to rotate downwards, avoiding gas short-circuiting directly into the first stage cyclone 3. As a preferred embodiment, the downward inclination angle α of the gas inlet 11 is 15 °. As another preferred embodiment, the downward inclination angle α of the gas inlet 11 is 25 °.
Referring to fig. 9, the first-rotation drain pipe 35 is coaxially disposed with the drain outlet 13, and a plurality of fixing blocks 9 are uniformly distributed in the gap between the first-rotation drain pipe 35 and the drain outlet 13 at intervals, so as to ensure that the first-rotation drain pipe 35 is fixedly mounted and kept coaxial with the drain outlet 13. As a preferred embodiment, the number of the fixing blocks 9 is six.
Referring to fig. 7, the preseparator 2 includes a preseparator cylinder 25, a reflecting screen 22, a drain cone 23 and a drain hole 24; the sewage cone 23 is of a cone structure with a wide upper part and a narrow lower part, the upper end of the sewage cone 23 is coaxially connected with the lower end of the pre-separator cylinder 25, the lower end of the sewage cone 23 is hermetically fixed on a first-stage cyclone separator 3, and an annular pre-separation cavity 21 is formed among the inner wall of the pre-separator cylinder 25, the inner wall of the sewage cone 23, the outer wall of the first-stage cyclone separator 3 and the inner wall of a top plate 36 of the first-stage cyclone separator 3; the reflecting screen 22 is of a circular ring structure, the inner ring of the reflecting screen 22 is arranged on the outer wall of a rotary cylinder 33 and is flush with the upper end of the pollution discharge cone 23, and an annular gap is reserved between the outer ring of the reflecting screen 22 and the preseparation cylinder 25; the plurality of drain holes 24 are circumferentially and uniformly distributed on the rotary cylinder body 33, and the drain holes 24 are positioned between the lower end of the drain cone 23 and the reflecting screen 22.
The drain holes 24 may be of any reasonable shape, and are used for timely discharging the impurities collected by the preseparator 2 on line, referring to fig. 8, as a preferred embodiment, six drain holes 24 are provided, and the six drain holes 24 are located at the same level. The reflecting screen 22 can prevent the phenomenon of bottom entrainment of the preseparator 2, improve the separation efficiency, and the annular gap between the reflecting screen 22 and the preseparator cylinder 25 can be used for discharging dust into the pollution discharge cone 23.
The second-stage cyclone separator 7 consists of a plurality of small-diameter cyclone units 71, the small-diameter cyclone units 71 are circumferentially and uniformly distributed on the outer side of the riser 4, and each small-diameter cyclone unit 71 is fixed on the riser 4 and is communicated with the inside of the riser 4. Referring to fig. 5, as a preferred embodiment, six small diameter cyclone units 71 are provided. Referring to fig. 6, as another preferred embodiment, the small diameter cyclone unit 71 is provided with eight. The locations of the small diameter cyclone units 71 are reasonably arranged according to the size of the annular region between the housing 1 and the draft tube 4, and the center of the cyclone unit inlet 711 may or may not be oriented toward the center of the draft tube 4.
Referring to fig. 10, the small diameter cyclone unit 71 includes a cyclone unit inlet 711, a cyclone unit outlet 712, and a cyclone unit drain 713; the cyclone unit inlet 711 is provided at a top side of the small-diameter cyclone unit 71, and the small-diameter cyclone unit 71 is fixedly connected with the draft tube 4 through the cyclone unit inlet 711 and is communicated with the inside of the draft tube 4; an upper partition plate 8 is arranged at the upper part of the shell 1, the upper partition plate 8 is positioned below the gas outlet 12, one end of a cyclone unit outlet pipe 712 is communicated with the top of the small-diameter cyclone unit 71, the other end of the cyclone unit outlet pipe 712 penetrates through the upper partition plate 8 and is communicated with the gas outlet 12, and the cyclone unit outlet pipe 712 is fixedly connected with the upper partition plate 8; the middle part of the shell 1 is provided with a lower baffle plate 6, the lower baffle plate 6 is positioned above the preseparator 2, one end of the cyclone unit blow-down pipe 713 is communicated with the bottom of the small-diameter cyclone unit 71, and the other end of the cyclone unit blow-down pipe 713 penetrates through the lower baffle plate 6 and is fixedly connected with the lower baffle plate 6. The upper and lower partitions 8 and 6 may be used to fix the small diameter cyclone units 71 and the draft tube 4.
The cyclone unit drain pipes 713 are of a bent structure, so that the lower ends of the cyclone unit drain pipes 713 extend obliquely to the inner wall direction of the shell 1, the lower ends of the cyclone unit drain pipes 713 extend to the position right above an annular space formed between the shell 1 and the preseparation device 2, impurities separated by the second-stage cyclone separators 7 fall into the bottom of the shell 1 through the annular space formed between the shell 1 and the preseparation device 2, and the problem of accumulation at the top of the top plate 36 is also prevented. Preferably, the bend angle β of the cyclone unit drain 713 is 145 ° -165 °.
As a preferred embodiment, the bend angle β of the cyclone unit drain 713 is 155 °. As another preferred embodiment, the bent angle β of the cyclone unit drain 713 is 145 °.
The lower partition plate 6 is provided with a balance hole 61 to balance the internal and external pressures of the small-diameter cyclone unit 71 between the upper partition plate 8 and the lower partition plate 6, i.e., the small-diameter cyclone unit 71 is not pressed. The balance hole 61 may be of any form, and as a preferred embodiment, the balance hole 61 is a circular through hole.
The gas lift pipe 4 is of a cylindrical structure with a closed upper end and an open lower end, and the lower end of the gas lift pipe 4 is fixed on a top plate 36 of the first-stage cyclone separator 3 in a sealing way, so that the gas lift pipe 4 is communicated with a cyclone outlet pipe 32 of the first-stage cyclone separator 3.
Preferably, the diameter of the gas lift pipe 4 is larger than that of a spinning outlet pipe 32, so that the gas flow speed in the gas lift pipe 4 can be reduced, the resistance of the separator can be reduced, and the ratio De/De of the diameter De of the gas lift pipe 4 to the diameter De of the spinning outlet pipe 32 is 1.2-1.6. As a preferred embodiment, the ratio De/De of the diameter De of the draft tube 4 to the diameter De of a swirl outlet tube 32 is 1.2. As another preferred embodiment, the ratio De/De of the diameter De of the draft tube 4 to the diameter De of a swirl outlet tube 32 is 1.6.
Referring to fig. 11, a racemization device 5 is coaxially disposed at the lower end of the inside of the riser 4, the racemization device 5 has a hollow conical structure with a narrow upper part and a wide lower part, and a plurality of circular through holes 51 are uniformly distributed on the conical surface of the racemization device 5. The conical surface area is large, the rotating air flow is forcedly divided into a plurality of small air flows through the circular through holes 51 after entering the racemizer 5, then the small air flows are converged again into direct-current air flows, and the direct-current air flows enter the second-stage cyclone separator 7, so that the pressure loss of the air in the riser 4 can be reduced, and the ascending air flow can uniformly enter each small-diameter cyclone unit 71 of the second-stage cyclone separator 7.
Preferably, the aperture ratio of the conical surface of the racemization device 5 is more than 80%, the diameter of each circular through hole 51 is not less than 5mm, the diameter of the bottom of the racemization device 5 is equal to the diameter of the riser 4, de is the ratio H/De of the height H of the racemization device 5 to the diameter De of the bottom is 1.0-1.5.
The ash bucket 10 is internally provided with a level meter 101, and the level meter 101 is higher than the lower end of the primary cyclone separator 3, namely the primary cyclone separator. The level meter 101 controls the ash bucket 10 to always have the lowest material level, the first-stage cyclone separator 3 and the second-stage cyclone separator 7 are prevented from being unbalanced due to pressure by inserting the first-stage cyclone separator 35 below the level meter 101 through the drain outlet 13, and the separation efficiency of the gas is prevented from being reduced due to the fact that the gas is discharged from the bottom of the first-stage cyclone separator 35 and flows into the small-diameter cyclone unit 71 through the cyclone unit drain pipe 713.
The top of casing 1 be equipped with manhole 14, the middle part of casing 1 is equipped with a plurality of access hole 15, access hole 15 is located the below of lower baffle 6, can get into the space above baffle 8 in the casing 1 through manhole 14 and inspect whether minor diameter whirlwind unit 71 is blockked up, access hole 15 can be used for cleaning equipment when the equipment overhauls when necessary and uses.
The working principle of the invention is as follows: the gas containing dust or liquid enters the preseparator 2 through the gas inlet 11, and under the action of the declining and straight-cut structures of the gas inlet 11, the gas starts to rotate downwards in the preseparator 2, wherein dust particles or liquid drops with larger diameters are thrown towards the inner wall of the preseparator cylinder 25 by centrifugal force and fall down along the wall surface, fall into the pollution discharge cone 23 through an annular gap formed by the reflecting screen 22 and the preseparator cylinder 25, and are discharged into the first-stage cyclone separator 3 through the pollution discharge hole 24. The rotating gas is reversed after reaching the reflecting screen 22, and is rotated upwards along the outer wall of the rotary cylinder 33 in the same rotation direction to reach the top of the pre-separation cavity 21, so that the direction of the cutting-in of the rotary inlet 31 is opposite to the rotation direction of the air flow in the pre-separation cavity 21, the air flow must be changed sharply to enter the first-stage cyclone separator 3, and the impurity particles which are not separated are thrown away from the air flow to the inner wall of the pre-separator cylinder 25 to be further separated by utilizing the difference of the inertia force of the impurity particles and the air in the movement, and fall into the pollution discharge cone 23 along the downstream air flow. After the gas is separated for the second time in the first-stage cyclone separator 3, the collected impurities are discharged into the ash bucket 10 through a cyclone discharge pipe 35, the separated gas enters the riser 4 from a cyclone outlet pipe 32, the gas is changed into a direct current state from a rotating state after passing through the racemizer 5, and then the gas uniformly enters each small-diameter cyclone unit 71 of the second-stage cyclone separator 7 for third separation, and the separated clean gas is discharged through a gas outlet 12. Impurities collected by the second-stage cyclone 7 fall into the bottom of the shell 1 through the annular space between the shell 1 and the preseparator 2 and then enter the ash bucket 10. The collected impurities in the ash bucket 10 are periodically discharged through an ash bucket drain outlet 102 at the bottom of the ash bucket 10, but a section of material seal height is always present in the ash bucket 10, and a spiral drain pipe 35 is inserted below the material seal height, so that the gas in the first-stage cyclone separator 3 is prevented from being discharged from the bottom of the spiral drain pipe 35. The height of the material seal is monitored and controlled by a level gauge 101 at the lower end of the hopper 10. When the material level in the ash bucket 10 is lower than the material sealing height during the ash bucket 10 is discharged, the ash bucket discharge outlet 102 at the bottom of the ash bucket 10 can be controlled by the material level meter 101 in a linkage manner to stop the discharge. The three-stage separation device is skillfully built in the same equipment, has ultrahigh separation efficiency, has low running resistance, saves the occupied area of the equipment, and reduces the investment cost of the equipment.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. An integrated two-stage efficient cyclone separator is characterized in that: comprises a shell (1), a gas inlet (11) arranged in the middle of the shell (1), a gas outlet (12) arranged at the upper part of the shell (1), a sewage outlet (13) arranged at the bottom of the shell (1) and an ash bucket (10) connected with the sewage outlet (13); the shell (1) is internally provided with a preseparation device (2), a first-stage cyclone separator (3), a riser (4) and a second-stage cyclone separator (7), the upper part of the first-stage cyclone separator (3) is coaxially arranged in the preseparation device (2), the middle part of the outer wall of the first-stage cyclone separator (3) is in sealing connection with the bottom of the preseparation device (2), and the top of the first-stage cyclone separator (3) is in sealing connection with the top of the preseparation device (2), so that a preseparation cavity (21) is formed between the preseparation device (2) and the first-stage cyclone separator (3); the bottom of the first-stage cyclone separator (3) penetrates through the sewage outlet (13) and is communicated with the ash bucket (10), the top of the first-stage cyclone separator (3) is communicated with the second-stage cyclone separator (7) through the riser (4), and the gas inlet (11) penetrates through the shell (1) and is communicated with the preseparator (2); a manhole (14) is arranged at the top of the shell (1), and a plurality of overhaul holes (15) are arranged in the middle of the shell (1);
The first-stage cyclone separator (3) comprises a cyclone inlet (31), a cyclone outlet pipe (32), a cyclone cylinder (33), a cyclone cone (34), a cyclone drain pipe (35) and a top plate (36); the first-stage cyclone separator (3) and the pre-separator (2) share a top plate (36), a cyclone outlet pipe (32) is coaxially arranged at the top of a cyclone body (33), and the cyclone outlet pipe (32) penetrates through the top plate (36) and is communicated with the riser (4); the plurality of first rotary inlets (31) are circumferentially and uniformly distributed at the top of a rotary cylinder body (33), a rotary cone (34) is of a cone structure with a wide upper part and a narrow lower part, the upper end of the first rotary cone (34) is coaxially connected with the lower end of the first rotary cylinder body (33), the upper end of a first rotary blow-off pipe (35) is coaxially connected with the lower end of the first rotary cone (34) and penetrates through a blow-off outlet (13), and the lower end of the first rotary blow-off pipe (35) is coaxially inserted into an ash bucket (10);
The preseparator (2) comprises a preseparator cylinder (25), a reflecting screen (22), a pollution discharge cone (23) and a pollution discharge hole (24); the sewage disposal cone (23) is of a cone structure with a wide upper part and a narrow lower part, the upper end of the sewage disposal cone (23) is coaxially connected with the lower end of the pre-separator cylinder (25), the lower end of the sewage disposal cone (23) is sealed and fixed on a rotary cylinder body (33) of the first-stage cyclone separator (3), and an annular pre-separation cavity (21) is formed among the inner wall of the pre-separator cylinder (25), the inner wall of the sewage disposal cone (23), the outer wall of the rotary cylinder body (33) of the first-stage cyclone separator (3) and the inner wall of a top plate (36) of the first-stage cyclone separator (3); the reflecting screen (22) is of a circular structure, an inner ring of the reflecting screen (22) is arranged on the outer wall of a rotary cylinder body (33) and is flush with the upper end of the pollution discharge cone (23), and an annular gap is reserved between the outer ring of the reflecting screen (22) and the preseparation cylinder body (25); a plurality of blow-down holes (24) are circumferentially and uniformly distributed on a rotary cylinder body (33), and the blow-down holes (24) are positioned between the lower end of a blow-down cone (23) and a reflecting screen (22);
The second-stage cyclone separator (7) consists of a plurality of small-diameter cyclone units (71), the small-diameter cyclone units (71) are circumferentially and uniformly distributed on the outer side of the riser (4), and each small-diameter cyclone unit (71) is fixed on the riser (4) and is communicated with the inside of the riser (4).
2. The integrated two stage high efficiency cyclone separator of claim 1, wherein: the rotary inlet (31) is positioned above the gas inlet (11), the rotary inlet (31) is tangential with the cylinder wall of the rotary cylinder body (33), and the cutting-in direction of the rotary inlet (31) is opposite to the cutting-in direction of the gas inlet (11); the gas inlet (11) is bent to form a downward inclined gas channel, the gas inlet (11) is tangentially connected with the wall of the preseparation cylinder (25) of the preseparation device (2), and the downward inclination angle of the gas inlet (11) is 15-25 degrees.
3. The integrated two stage high efficiency cyclone separator of claim 1, wherein: the rotary blow-off pipe (35) and the blow-off outlet (13) are coaxially arranged, and a plurality of fixing blocks (9) are uniformly distributed in the gap between the rotary blow-off pipe (35) and the blow-off outlet (13) at intervals.
4. The integrated two stage high efficiency cyclone separator of claim 1, wherein: the small-diameter cyclone unit (71) comprises a cyclone unit inlet (711), a cyclone unit outlet pipe (712) and a cyclone unit drain pipe (713); the small-diameter cyclone unit (71) is fixedly connected with the riser (4) through a cyclone unit inlet (711) and is communicated with the inside of the riser (4); an upper partition plate (8) is arranged at the upper part of the shell (1), the upper partition plate (8) is positioned below the gas outlet (12), one end of a cyclone unit outlet pipe (712) is communicated with a small-diameter cyclone unit (71), the other end of the cyclone unit outlet pipe (712) penetrates the upper partition plate (8) and is communicated with the gas outlet (12), and the cyclone unit outlet pipe (712) is fixedly connected with the upper partition plate (8); the middle part of the shell (1) is provided with a lower baffle plate (6), the lower baffle plate (6) is positioned above the preseparator (2), one end of a cyclone unit blow-down pipe (713) is communicated with a small-diameter cyclone unit (71), and the other end of the cyclone unit blow-down pipe (713) penetrates through the lower baffle plate (6) and is fixedly connected with the lower baffle plate (6); the upper partition plate (8) and the lower partition plate (6) can be used for fixing the small-diameter cyclone unit (71) and the riser (4); a balance hole (61) is arranged on the lower baffle plate (6); the cyclone unit blow-down pipe (713) is of a bent structure, so that the lower end of the cyclone unit blow-down pipe (713) obliquely extends towards the inner wall direction of the shell (1), the lower end of the cyclone unit blow-down pipe (713) extends to the position right above an annular space formed between the shell (1) and the preseparation device (2), and the bending angle of the cyclone unit blow-down pipe (713) is 145-165 degrees.
5. The integrated two stage high efficiency cyclone separator of claim 4, wherein: the gas lift pipe (4) is of a cylindrical structure with a closed upper end and an open lower end, and the lower end of the gas lift pipe (4) is fixed on a top plate (36) of the first-stage cyclone separator (3) in a sealing way, so that the gas lift pipe (4) is communicated with a cyclone outlet pipe (32) of the first-stage cyclone separator (3); the diameter of the gas lift pipe (4) is larger than that of a spinning outlet pipe (32), and the ratio of the diameter of the gas lift pipe (4) to that of the spinning outlet pipe (32) is 1.2-1.6.
6. The integrated two stage high efficiency cyclone separator of claim 5, wherein: the lower end of the inside of the riser (4) is coaxially provided with a racemizer (5), the racemizer (5) is of a hollow conical structure with a narrow upper part and a wide lower part, and a plurality of circular through holes (51) are uniformly distributed on the conical surface of the racemizer (5); the aperture ratio of the conical surface of the racemization device (5) is more than 80%, the diameter of each circular through hole (51) is not less than 5mm, the diameter of the bottom of the racemization device (5) is equal to the diameter of the riser (4), and the ratio of the height of the racemization device (5) to the diameter of the bottom is 1.0-1.5.
7. The integrated two stage high efficiency cyclone separator of claim 1, wherein: the ash bucket (10) is internally provided with a level meter (101), and the level meter (101) is higher than the lower end of a cyclone blow-down pipe (35) of the first-stage cyclone separator (3).
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| CN112121539A (en) * | 2020-08-28 | 2020-12-25 | 北京京仪自动化装备技术有限公司 | Gas treatment device |
| CN114985126B (en) * | 2022-03-15 | 2023-12-08 | 苏州克林威尔电器有限公司 | Novel cyclone dust separating structure |
| CN115921297A (en) * | 2022-12-28 | 2023-04-07 | 临清市龙山液压机械制造有限公司 | Horizontal wind material separator |
| CN118681709B (en) * | 2024-06-28 | 2026-04-14 | 太原理工大学 | Cyclone separator series-parallel coupling system capable of adjusting flow distribution |
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| CN2568308Y (en) * | 2002-08-13 | 2003-08-27 | 中国石化工程建设公司 | Riser type No.3 stage cyclone separator |
| CN201283319Y (en) * | 2008-10-20 | 2009-08-05 | 中国石化集团洛阳石油化工工程公司 | Vertical tube type third cyclone separator with predissociation device |
| CN201291165Y (en) * | 2008-11-02 | 2009-08-19 | 江苏科行环境工程技术有限公司 | High-efficiency multi-stage powder concentrator |
| CN108237024A (en) * | 2017-12-28 | 2018-07-03 | 陕西延长石油（集团）有限责任公司 | A kind of two stage cyclone separator |
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