CN104368226A - Flue-gas purifying system of incineration furnace - Google Patents
Flue-gas purifying system of incineration furnace Download PDFInfo
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- CN104368226A CN104368226A CN201410648383.3A CN201410648383A CN104368226A CN 104368226 A CN104368226 A CN 104368226A CN 201410648383 A CN201410648383 A CN 201410648383A CN 104368226 A CN104368226 A CN 104368226A
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- flue
- process chamber
- water
- place
- flue gas
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- 239000003546 flue gas Substances 0.000 title claims abstract description 70
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000004571 lime Substances 0.000 claims abstract description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 22
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 87
- 238000000926 separation method Methods 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 35
- 238000001556 precipitation Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000000779 smoke Substances 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 8
- 239000003818 cinder Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010943 off-gassing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 16
- 238000007599 discharging Methods 0.000 abstract description 7
- 239000002244 precipitate Substances 0.000 abstract description 4
- 238000004056 waste incineration Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 22
- 239000003500 flue dust Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 239000007921 spray Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000003517 fume Substances 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the field of waste incineration equipment and particularly relates to a flue-gas purifying system of an incineration furnace applicable to treating flue gas from incineration of the incineration furnace. The flue-gas purifying system at least comprises a flue-gas leading-out pipe and a treating chamber, wherein a water curtain part is arranged at the treating chamber, and the water discharging direction of the water curtain part is vertical to or intersected with the moving direction of the flue gas at the outlet of the flue-gas leading-out pipe; a precipitate deslagging port is arranged at the bottom part of the treating chamber; the treating chamber is internally provided with a communicating pipe for communicating with an external inner-circulation reservoir and a steam discharging pipeline; a gas discharging pipe of a water-steam separating component extends towards the tail end of a flue and penetrates into an inner cavity of the flue; and a water discharging pipe of the water-steam separating component is communicated with the external inner-circulation reservoir. The flue-gas purifying system also comprises a carbon-powder distributor and a lime distributor. The flue-gas purifying system can provide a basic hardware platform for treating the flue gas of the current high-efficiency incineration furnace, is high in flue-gas treating efficiency and good in working reliability, and can be well qualified for the need of high-efficiency, harmless and rapid treatment of the flue gas from incineration of various current incineration furnaces.
Description
Technical field
The invention belongs to garbage incinerating system field, be specifically related to a kind of incinerator smoke cleaning system being applicable to process incinerator incineration flue gas.
Background technology
Waste incineration be realize garbage harmless, subtract appearanceization, recycling treatment effective method the most.Garbage incineration technology is very ripe in developed country, and have accumulated the experience more than 20 years.But for China, being but one has frontier that is to be developed, study.Although China has obtained many progress at present in waste incineration, but still be in and grope and conceptual phase.Early several years ago, limit value regulation (" consumer waste incineration Environmental capacity standard " (GB18485-2001)) of China's garbage incinerator tail gas discharge is just announced, and requires the stage reaching harshnessization especially to the fume emission of incinerator.
At present, for the subsequent treatment mode of incinerator smoke, be mostly divided into dry type and half dry type two kinds.Dry process technique is that the lime white adopting spray pulverized limestone to substitute in semidry method is atomized.And so-called widely used semidry method treatment process, described by all having in notification number is for CN 1796869 and the notification number Chinese patent that is CN101745297A.Be generally: the flue gas from boiler enters reaction tower by reaction tower top by air-distribution device.Atomized water sprays into reaction tower by the double fluid atomization nozzle of reaction tower throat, and mixes with flue gas in reaction tower, and in flue gas, droplet and calcium hydroxide particle are with the SO in very high mass transfer rate and flue gas
2carry out hybrid reaction Deng acidic materials, generate CaSO
4, CaSO
3and CaCl
2etc. product.These dry state product fractions are discharged from ash discharging hole at the bottom of reaction tower tower, and part enters sack cleaner dedusting with flue gas through flue, finally obtains the flue gas up to standard after udst separation.
Aforesaid operations mode is after permanent reality is run, it is found that, no matter be dry method or semidry method treatment process, it all possesses the defect of general character, comprising: first, above-mentioned technique is carried out because reacting, lowering the temperature all must rely in reaction tower, and reaction tower small volume and bottom is moister, reactant such as limewash can not get easily hardening again under large quantity of moisture nourishes, and therefore certainly exists and causes scale problems at the bottom of tower, and being subject to the restriction in space in tower, its cleaning operation is also often very difficult.Especially at present in structure, flue dust is all often direct directly to be poured into from tower top, and sprays with limewash pouring in process, causes Lian Tabi place all can produce scale formation especially, thus increases clean difficulty.Secondly, current so-called reaction tower, what all adopt is that the steam spray mode of atomizer carries out slow cooling to the flue gas come by flue.Practical study finds, the flue gas of slow cooling, cannot avoid a large amount of generations of wherein bioxin completely, extra bioxin can be caused on the contrary to be formed.Newly-increased a large amount of bioxin moves with after treatment process, thus adds the burden of subsequent treatment operation.Again, current processing mode, sack cleaner essential and must follow closely be arranged in lime treatment operation after.But, because the caking property of the pastel formed after water met by lime, cause it more obvious through sack cleaner.Even the flue gas extracted after precipitation on a small quantity, himself dampness and the lime white wrapped, advance with flue gas and stick with paste in a large number and be put on the dust settling pocket face of sack cleaner in capital, cause its bag of face filter opening to be blocked by lime white completely thereupon, and greatly reduce the filtrating smoke dust efficiency of its reality.Finally, even if a small amount of filtering gas after sack cleaner, be still difficult to meet at present harsh emission request, other remove agent, to realize further processing intent often all to need again to add such as charcoal etc.But realistic situation is, all there is self optimal reaction temperature in auxiliary agent, and current auxiliary agent adds and also all directly directly to add by force after previous reaction, pay no attention to each side requirements such as such as reaction temperature completely, cause the phenomenon of " inappropriate temperature carries out inappropriate reaction " of common occurrence, these are all the major reasons causing its treatment effeciency low.
Summary of the invention
The object of the present invention is to provide a kind of simple for structure and incinerator smoke cleaning system of practicality, the incinerator smoke process that can be current high efficiency provides the hardware platform on basis.Its fume treatment efficiency is high and functional reliability is good, can be competent at the high efficiency of current various incinerator incineration flue gas, innoxious and rapid processing demands.
For achieving the above object, present invention employs following technical scheme:
Incinerator smoke cleaning system, native system at least comprises the flue gas fairlead being communicated in flue tail end place and the process chamber be communicated with this flue gas fairlead, described process chamber is at least settling cascade portion near the mouth place of entering for connecting flue gas fairlead, and the water outlet direction in this cascade portion is vertical or intersect at the flue gas trend in exit of flue gas fairlead; Chamber bottom arranges the precipitation slag-drip opening being used for deslagging, the side-walls being positioned at below water liquid liquid level in process chamber offers the communicating pipe being communicated with outside Inner eycle cistern, the side-walls being positioned at more than water liquid liquid level in process chamber then offers the steam outlet pipe road connecting steam separation assembly, the escape pipe of steam separation assembly is postponed to flue tail end place and penetrates flue inner chamber, and the outlet pipe of steam separation assembly is communicated with outside Inner eycle cistern; Be front pipeline section with the escape pipe pipeline before steam separation assembly penetrates flue, the escape pipe pipeline of flue inner chamber is positioned at for heating pipeline section with it, passing the escape pipe body after flue with it is rear pipeline section, native system also comprises powdered carbon and lays device, and this powdered carbon laying device is positioned at the rear pipeline section place of above-mentioned escape pipe and its carbon outleting port is positioned at this rear pipeline section cavity arrangements; Device laid by the lime that native system also comprises for spraying lime or limewash in flue gas fairlead.
Described steam separation assembly comprises cyclone separator, is communicated with between the port of export that air inlet and the side-walls more than process chamber liquid level of described cyclone separator are offered; The outlet at bottom of cyclone separator forms the outlet pipe being communicated with outside Inner eycle cistern, is positioned at its top exit and then forms to unroll and run through the escape pipe of flue inner chamber; Native system also comprises the drainage blower fan for increasing escape pipe outgassing rate, and the working end of drainage blower fan is positioned at one section of tube chamber place at the rear pipeline section place of escape pipe.
Described steam separation assembly is many groups and is connected in series layout successively along steam outlet pipe road.
Be furnished with plate face parallel, horizontal or oblique water pouring plate in described process chamber, water drenches between plate plate face and process chamber lower liquid liquid level and has spacing; Described water drenches plate and process chamber inner chamber is divided into the upper water box room possessing upper water environment and the lower header room possessing bottom water environment, the water inlet being communicated with external water source is offered in upper water box room, the sieve aperture on plate is also drenched in water inlet water outlet via water under, filter forms aforementioned cascade portion, and process chamber enter the above position of liquid level that mouth is positioned at lower header room; Water drenches the exhaust outlet closing on the air inlet of layout connection lower header room, plate end place, steam separation assembly air inlet place and steam separation assembly of plate.
Described process chamber profile is airtight rectangular water tank room shape, the air inlet of the steam separation assembly that described process chamber is offered and process chamber enter the two opposite side walls place that mouth is arranged in process chamber respectively.
The bottom face of process chamber is inclined plane, and its most significant end place be positioned at process chamber enter side, mouth place, its least significant end place arranges precipitation funnel, and this precipitation funnel forms aforementioned precipitation slag-drip opening, and the outside cinder conveyer of outlet of precipitation funnel is arranged.
The described plate that drenches with rain is by the exhaust opening place inwall of process chamber, extend in the horizontal direction and terminate in precipitation funnel close exhaust opening place oral area edge above locate, the plate end being positioned at precipitation funnel place place of plate of drenching with rain upwards is postponed and is had partition wall, described partition wall, drench with rain plate and process chamber respective inner walls jointly enclose and form upper water box room, and the process chamber sidewalls at the air inlet place of partition wall and steam separation assembly encloses region and forms aforementioned exhaust outlet.
The heating pipeline section of described escape pipe runs through flue along the width level of flue; Madial wall place, flue both sides attaches and arranges left and right heated wall, and gather many between left and right heated wall for being communicated with branch's heating tube each other, left and right heated wall and branch's heating tube form above-mentioned heating pipeline section jointly.
The port of export profile of described flue gas fairlead is in by the square wealthy mouth columnar structure of its stage casing to the gradually wide level of its exit bore, and the ash hole that device laid by lime is communicated in the close flue end-position place of flue gas fairlead.
Major advantage of the present invention is as follows:
1) but, abandoned traditional very easily blocking completely, safeguarded the loaded down with trivial details frequent sack cleaner system adopted, by the novel process flow process designed separately, thus provide the hardware platform on basis for the incinerator smoke process of its high efficiency.
In whole handling process, native system draws the raw flue gas in flue using flue gas fairlead as exit, with the cascade portion at process chamber place, thus rinsed by the high speed of flood tide water, realize pressure effect is flutterred for raw flue gas, to make its inner flue dust by the liquid level that is directly pressed in process chamber.In process chamber, form the bottom discharge of sedimentation basin through the original lime-ash of initial stage precipitation along precipitation slag-drip opening institute, partial suspended thing enters the secondary precipitation of Inner eycle cistern with treatment fluid.And water-fast gas shape flue gas, then emersion treatment fluid, and wrap part steam and enter steam separation circuit separating treatment in addition.What is more important, the flue gas of the ideal gas state after separating treatment, again be back to flue tail end to heat, thus reach about 150 DEG C temperature of optimum reaction treatment, thus lay with powdered carbon the powdered carbon that device lays and react, reach the ending effect of fume treatment, the flue gas cleaning degree after final process is high, is certainly also positioned at completely on current standard limit of smog release.
Three large emphasis of native system, one rinses instead of the slow spray painting of a small amount of current of tradition for the current in the cascade portion high speed that is a large amount of current, thus enables the high-temperature flue gas of 400 DEG C to 450 DEG C just come from flue reach the effect of " instantaneous cooling " to tens degrees Celsius.And high temperature is cold to the wink of low temperature, be then the optimum treatment mode stopping the generation of Yan gas Zhong bioxin, this is that absolute demand is noted.Second point, be then that of avoiding as desulfurization lime slurry for steam separation assembly corrosion and paste stick with paste phenomenon.Due to through anterior hydrodynamic cleaning and leaching, flue gas and the completely processed indoor water liquid dilution of the rear lime slurry included of water liquid mixing, only overflow water liquid by steam and enter steam separation assembly, thus also just stopped lime slurry for the corrosion of steam separation assembly and subsides pasty state condition, improve its actual life and result of use.Thirdly, be then set for " suitable temperature carries out suitable reactions ".With the arrangement that escape pipe unrolls in flue, its low-temperature flue gas after flood tide water at a high speed cooling is reheated.By the suitable heating tube segment length being positioned at flue inner chamber, flue-gas temperature of circulation in it is risen again to the optimal reaction temperature of 150 DEG C, thus improve the highly effective reaction effect of the auxiliary agent such as flue gas and powdered carbon, practice shows, its reaction effect is good, the own temperature of the flue simultaneously utilized cleverly, use cost can greatly be reduced, and disposal ability also can been significantly enhanced.
2), the setting of steam separation assembly, consider and abandoned the impact of lime slurry completely, the better cyclone separator of cost performance therefore can be adopted to be separated object to realize its steam.During actual use, multiple stage cyclone separator maybe can be used to be connected in series along pipeline, to be even connected in series successively by dissimilar steam separation assembly, only need meet aforementioned basic high-efficiency vapor separating effect, just repeat no more herein.
3), the port of export of flue gas fairlead structure, make flue gas move towards by rapid and trend slowly, finally for the water developing result in follow-up cascade portion provides premise.The water spray in cascade portion points to vertical and arranges downwards, then press down on the basis of speed at the spray of Shui Yanshui pouring plate sieve aperture, make use of the self gravitation of water further.Screen-aperture can take the circumstances into consideration to select according to actual conditions, with under ensureing that current are unlikely to the prerequisite flowed out in a large number along exhaust outlet, synchronously can guarantee its waterpower pressing result for flue dust.And simultaneously, as above-mentioned two power combine the downforce brought, the flue dust very first time having wrapped lime can be forced to be pressed into below the liquid level of process chamber, thus to provide favourable guarantee for its subsequent filter reaction.The cascade structure that the delivery port entirety in cascade portion is formed, ensure that the comprehensive compacting object of flue dust come for flue, its in flue the wink of hot gas cold effect stronger, efficiency is obvious also higher.
4), water drench the level of plate or incline structure very necessary, this is because under the huge hydraulic blow in cascade portion, inevitable with a large amount of spray and steam dissipation.Drench the lateral arrangement of plate with water, ensure that the rigid interception object for the huge spray of this water content and steam loss.Along with the instant shock between high-temperature flue gas and cascade, a large amount of spray and steam generate and constantly impinge upon water and drenches plate lower face, thus cannot ascension in upper cavity and even cyclone separator.Gas in high-temperature smoke enters below the liquid level of process chamber after having to first to lower the temperature, and enter in cyclone separator along with the floatability of gas self through exhaust outlet, gas is now very clean and do not contain too much steam, this is separated burden to the steam alleviating steam separation assembly, and the operating efficiency promoting steam separation assembly all serves profound influence.
5), the mouth that enters of process chamber is arranged in more than liquid level and water to drench below plate position be necessary.If this considers that will enter mouth directly gos deep into below liquid level, the extremely light flue dust of quality can be caused to enter and to be obstructed, obviously cannot reach flue dust flow effect smoothly.And mouth will be entered suppress in water and drench below plate, also can realize the cascade compacting object of aforesaid large discharge low temperature, achieve many things at one stroke.
6), the oblique structure of chamber bottom, be the controllability considering that the very first time being mingled with lime-ash for process indoor liquid flows to.Above-mentioned ramped bottom surface, can guarantee that the lime-ash that mouth brings of entering from most significant end place can before precipitation completely, under the synergy of the liquid stream thrust can brought in the enormous impact power in cascade portion and the inclined plane of chamber bottom, directly can enter precipitation slag-drip opening place precipitate and realize deslagging, thus promote its deslagging efficiency, and the lime incrustation phenomenon alleviating process chamber bottom surface safeguards intensity and frequency to reduce it.
7) the multitube design of pipeline section, is heated, achieve and do not affecting flue gas under the current prerequisite of flue tail end, in turn ensure that the demand that is rapidly heated of the tentatively clean flue gas after steam separation assembly is separated, to make it at a high speed after heating pipeline section, can can reach in the short period of time and specify warm temperature requirement, final to ensure with optimal temperature and follow-up powdered carbon lays reaction effect between powdered carbon that device lays, achieve many things at one stroke.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of the heating pipeline section of escape pipe;
Fig. 3 is the arrangement states figure of steam separation assembly along steam outlet pipe road;
Fig. 4 is the explanatory note block diagram of workflow of the present invention.
In figure, the corresponding relation of each label and each toponym of the present invention is as follows:
A-flue b-outside d-lower header room, cinder conveyer c-upper water box room e-sludge discharging machine
10-flue gas fairlead
20-process chamber 21-precipitates slag-drip opening 22-communicating pipe 23-steam outlet pipe road
24-exhaust outlet 30-cascade portion 40-cyclone separator 41-escape pipe
Before 411-, pipeline section 412-heats the right heated wall of the left heated wall 412b-of pipeline section 412a-
Pipeline section 42-outlet pipe after 412c-branch heating tube 413-
50-powdered carbon is laid device 60-lime and is laid device 70-drainage blower fan
80-water drenches plate 82-partition wall 90-water inlet
Detailed description of the invention
For ease of understanding, composition graphs 1-4 specifically sets forth component structure of the present invention and specific works flow process thereof herein:
Specific embodiment of the invention structure as Figure 1-3, comprises process chamber 20, cyclone separator 40 and the drainage blower fan 70 arranged successively along system works path.Wherein, process chamber 20 is communicated with flue a tail end with flue gas fairlead 10, flue gas fairlead 10 tube chamber place arranges that the ash hole of device 60 laid by lime, is communicated with, is communicated with between drainage blower fan 70 with cyclone separator 40 with escape pipe 41 between cyclone separator 40 with process chamber 20 with steam outlet pipe road 23.For ensureing steam separative efficiency, can arrange multiple of the same type or dissimilar steam separation assembly on escape pipe 41 again, be good with 1-5, to promote its steam separating effect.
Process chamber 20 profile is rectangular cavity type closed chamber structure, and in it, level or the water that is in tilted layout drench plate 80.As for each chamber composition in process chamber, can be regarded as the upper water box room c first marked off by water pouring plate 80 and the partition wall 81 and lower header room d being positioned at below water pouring plate 80 place plane, thus ensure that the current of water inlet 90 are first via the c accumulation of energy of upper water box room, drench the sieve aperture on plate 80 through water more afterwards and obtain kinetic energy and pour down in a large number, and then realizing being positioned at the flue dust pressing result that mouth is entered at its side place.The exhaust outlet 34 of upper water box room c side, the air ventilation passage beyond independent of upper water box room c can be regarded as, thus after the cascade portion 30 that flue dust is formed via upper water box room c suppresses, its gas can by loss emersion in the liquid of lower header room d, and directly enters steam separation assembly via exhaust outlet 24 and carry out steam separation.The bottom of process chamber 20 possesses high low side, and it is high-end is into mouth place end, and its lower end then arranges precipitation funnel and precipitates slag-drip opening 21 to form, is convenient to discharge unnecessary lime-ash.Process chamber 20 sidewall arranges the communicating pipe 22 being communicated with outside Inner eycle cistern with lower portion at liquid level, so that ensure the liquid level in process chamber 20.Steam outlet pipe road 23 is positioned at process chamber 20 sidewall at the above position of liquid level.As for the escape pipe 41 of steam separation assembly, then unroll and run through flue a tail end, thus forming section body is arranged in the unique texture of the inner chamber of flue a tail end, with the rise again heating object of most economical realization to flue gas in the inner, thus is convenient to and reaches optimum response effect between follow-up powdered carbon.Certainly, during actual use, also realize post bake object by other heating components, only need promote its operating cost, just repeat no more herein.
During the actual real work of the present invention, as shown in Figure 4.First, by the flue gas formed after main chamber high-temp combustion material, on flue a, the cooling process of the parts such as each water-cooling wall, during to its tail end, reaches 400 DEG C to 450 DEG C temperature.Now also be harmful to dirt gas containing a large amount of in its flue gas, be not suitable for external discharge completely.This flue gas leads to process chamber 20 after spraying limewash or lime white sulphur removal in flue gas fairlead 10.Drawing in a flash from flue gas fairlead 10, high-temperature flue gas moment is rinsed by the water possessing oppressive force of a large amount of even flood tides that cascade portion 30 ejects and presses down, thus makes its moment be cooled to tens degrees Celsius from 400 DEG C to 450 DEG C.Under lowering the temperature so at a high speed, the generation possibility of ， bioxin is stopped completely.Under the punching press in cascade portion 30, flue gas containing lime is pressed into below the liquid level of process chamber 20, the unburnt lime-ash contained in it etc. move to precipitation slag-drip opening 21 place along its inclined ramp and wait for deslagging, thus after along with the keying of sludge discharging machine e, externally cinder conveyer b mixes together with the lime-ash in flue a, enter the operations such as special lime-ash brickmaking, reach its waste product and utilize processing intent.Be partially suspended on lime-ash in water liquid then via draining into outside Inner eycle cistern communicating pipe 22, to reach secondary precipitation process.Water liquid can not be molten gas, then under the minute quantity steam that must wrap is collaborative, enter steam outlet pipe road 23 along being positioned at process chamber 20 liquid level above exhaust outlet 90 place, and enter steam separation assembly thereupon, be separated with the steam carried out repeatedly.Water section after separation is back to outside Inner eycle cistern again.Gas part after separation, then through the heating of rising again of " of short duration " of the heating pipeline section 412 of escape pipe 41, rise again to 150 DEG C of temperature by tens degrees Celsius again.Gas after heating, just can and powdered carbon between reach optimum response under optimum temperature, thus filter out a small amount of even micro-nuisance still contained in it completely, finally reach efficient, treatment effect fast for this flue gas.
On the length direction of process chamber 20, flue dust can be regarded as first via process chamber 20 enter mouth ejection after, first the water spray section formed through the cascade portion 30 of the first half section of process chamber 20 also realizes waterpower compacting, and now flue dust is forced to sinking and enters lower header room d.Afterwards, after the slag eliminations such as flue dust sodalime slurry, gas ascension under self-acting in it, and overflow via the exhaust outlet 24 of second half section place's layout of process chamber 20, finally enter the air inlet of the carbonated drink separation assembly being positioned at process chamber 20 back segment place, finally to complete the wink cooling of process chamber and efficient flue dust leaching function.
The present invention is simple for structure and practical, and the incinerator smoke process that can be current high efficiency provides the hardware platform on basis.It is by falling the precise controlling process risen with wink for the temperature wink of flue gas, thus the generation pass of bioxin is truncated to make it guarantee when temperature wink falls, in turn ensure that when temperature wink rises powdered carbon can obtain its optimal reaction temperature, water liquid processing mode also makes lime white be removed completely for the corrosion of processing unit and adhesion characteristics, and its functional reliability and treatment effeciency all can effectively be ensured.Native system fume treatment efficiency is high and functional reliability is good, can be competent at the high efficiency of current various incinerator incineration flue gas, innoxious and rapid processing demands, wide market.
Claims (9)
1. incinerator smoke cleaning system, it is characterized in that: native system at least comprises the flue gas fairlead (10) being communicated in flue tail end place and the process chamber (20) be communicated with this flue gas fairlead (10), described process chamber (20) is at least settling cascade portion (30) near the mouth place of entering for connecting flue gas fairlead (10), and the water outlet direction in this cascade portion (30) is vertical or intersect at the flue gas trend in exit of flue gas fairlead (10); The precipitation slag-drip opening (21) being used for deslagging is arranged in process chamber (20) bottom, the side-walls being positioned at below water liquid liquid level in process chamber (20) offers the communicating pipe (22) being communicated with outside Inner eycle cistern, the side-walls being positioned at more than water liquid liquid level in process chamber (20) then offers the steam outlet pipe road (23) connecting steam separation assembly, the escape pipe (41) of steam separation assembly is postponed to flue tail end place and penetrates flue inner chamber, and the outlet pipe (42) of steam separation assembly is communicated with outside Inner eycle cistern; Be front pipeline section (411) with the escape pipe pipeline before steam separation assembly penetrates flue, the escape pipe pipeline of flue inner chamber is positioned at for heating pipeline section (412) with it, passing the escape pipe body after flue with it is rear pipeline section (413), native system also comprises powdered carbon and lays device (50), and this powdered carbon laying device (50) is positioned at rear pipeline section (413) place of above-mentioned escape pipe (41) and its carbon outleting port is positioned at this rear pipeline section (413) cavity arrangements; Device (60) laid by the lime that native system also comprises for spraying lime or limewash in flue gas fairlead (10).
2. incinerator smoke cleaning system according to claim 1, it is characterized in that: described steam separation assembly comprises cyclone separator (40), be communicated with between the port of export that air inlet and the side-walls more than process chamber (20) liquid level of described cyclone separator (40) are offered; The outlet at bottom of cyclone separator (40) forms the outlet pipe (42) being communicated with outside Inner eycle cistern, is positioned at its top exit and then forms the escape pipe (41) unrolling and run through flue inner chamber; Native system also comprises the drainage blower fan (70) for increasing escape pipe (41) outgassing rate, and the working end of drainage blower fan (70) is positioned at one section of tube chamber place at rear pipeline section (413) place of escape pipe (41).
3. incinerator smoke cleaning system according to claim 2, is characterized in that: described steam separation assembly is many groups and is connected in series layout successively along steam outlet pipe road (23).
4. according to the incinerator smoke cleaning system that Claims 2 or 3 is stated, it is characterized in that: be furnished with plate face parallel, horizontal or oblique water pouring plate (80) in described process chamber (20), water drenches between plate (80) plate face and process chamber (20) lower liquid liquid level and has spacing; Described water drenches plate (80) and process chamber (20) inner chamber is divided into the upper water box room possessing upper water environment and the lower header room possessing bottom water environment, the water inlet (90) being communicated with external water source is offered in upper water box room, the sieve aperture on plate (80) is also drenched in water inlet (90) water outlet via water under, filter forms aforementioned cascade portion (30), and process chamber (20) enter the above position of liquid level that mouth is positioned at lower header room; Water drenches the exhaust outlet (24) closing on the air inlet of layout connection lower header room, plate end place, steam separation assembly air inlet place and steam separation assembly of plate (80).
5. incinerator smoke cleaning system according to claim 4, it is characterized in that: described process chamber (20) profile is airtight rectangular water tank room shape, the air inlet of the steam separation assembly that described process chamber (20) is offered and process chamber (20) enter the two opposite side walls place that mouth is arranged in process chamber (20) respectively.
6. incinerator smoke cleaning system according to claim 5, it is characterized in that: the bottom face of process chamber (20) is inclined plane, and its most significant end place be positioned at process chamber (20) enter side, mouth place, its least significant end place arranges precipitation funnel, this precipitation funnel forms aforementioned precipitation slag-drip opening (21), and the outside cinder conveyer of outlet of precipitation funnel is arranged.
7. incinerator smoke cleaning system according to claim 6, it is characterized in that: described in drench with rain plate (80) by the exhaust opening place inwall of process chamber (20), extend in the horizontal direction and terminate in precipitation funnel close exhaust opening place oral area edge above locate, the plate end being positioned at precipitation funnel place place of plate (80) of drenching with rain upwards is postponed and is had partition wall (81), described partition wall (81), plate (80) and process chamber (20) respective inner walls of drenching with rain jointly encloses and forms upper water box room, partition wall (81) encloses region with the process chamber sidewalls at the air inlet place of steam separation assembly and forms aforementioned exhaust outlet (24).
8. the incinerator smoke cleaning system according to Claims 2 or 3, is characterized in that: the heating pipeline section (413) of described escape pipe (41) runs through flue along the width level of flue; Madial wall place, flue both sides attaches and arranges left and right heated wall (412a, 412b), gather many between left and right heated wall (412a, 412b) for being communicated with branch's heating tube (412c) each other, left and right heated wall (412a, 412b) and branch's heating tube (412c) form above-mentioned heating pipeline section (413) jointly.
9. the incinerator smoke cleaning system according to claim 1 or 2 or 3, it is characterized in that: the port of export profile of described flue gas fairlead (10) is in by the square wealthy mouth columnar structure of its stage casing to the gradually wide level of its exit bore, and the ash hole that device (60) laid by lime is communicated in the close flue end-position place of flue gas fairlead (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648383.3A CN104368226B (en) | 2014-11-14 | 2014-11-14 | Incinerator smoke cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648383.3A CN104368226B (en) | 2014-11-14 | 2014-11-14 | Incinerator smoke cleaning system |
Publications (2)
| Publication Number | Publication Date |
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| CN104368226A true CN104368226A (en) | 2015-02-25 |
| CN104368226B CN104368226B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410648383.3A Expired - Fee Related CN104368226B (en) | 2014-11-14 | 2014-11-14 | Incinerator smoke cleaning system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119820A (en) * | 2000-10-12 | 2002-04-23 | Nkk Corp | Waste incineration exhaust gas and dust treatment method |
| CN2683233Y (en) * | 2003-12-12 | 2005-03-09 | 上海金州环境工程技术有限公司 | Water cooling purifying device for smoke from rubbish incineration |
| CN201391882Y (en) * | 2009-03-10 | 2010-01-27 | 上海融新能源环境科技有限公司 | Dry flue gas treatment system for waste incineration |
| CN203886406U (en) * | 2014-06-03 | 2014-10-22 | 曲靖云电投新能源发电有限公司 | Tail gas purification device of circulating fluid bed garbage incinerator |
| CN204261547U (en) * | 2014-11-14 | 2015-04-15 | 合肥环坤污泥干化设备有限公司 | Incinerator smoke cleaning system |
-
2014
- 2014-11-14 CN CN201410648383.3A patent/CN104368226B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119820A (en) * | 2000-10-12 | 2002-04-23 | Nkk Corp | Waste incineration exhaust gas and dust treatment method |
| CN2683233Y (en) * | 2003-12-12 | 2005-03-09 | 上海金州环境工程技术有限公司 | Water cooling purifying device for smoke from rubbish incineration |
| CN201391882Y (en) * | 2009-03-10 | 2010-01-27 | 上海融新能源环境科技有限公司 | Dry flue gas treatment system for waste incineration |
| CN203886406U (en) * | 2014-06-03 | 2014-10-22 | 曲靖云电投新能源发电有限公司 | Tail gas purification device of circulating fluid bed garbage incinerator |
| CN204261547U (en) * | 2014-11-14 | 2015-04-15 | 合肥环坤污泥干化设备有限公司 | Incinerator smoke cleaning system |
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| Publication number | Publication date |
|---|---|
| CN104368226B (en) | 2016-03-23 |
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