CN206222948U - A kind of sinter cooler and its dynamic sealing equipment - Google Patents

Abstract

The utility model discloses a kind of sinter cooler and its dynamic sealing equipment, belong to the agglomerating plant field in iron and steel metallurgical industry.The purpose of this utility model is to overcome the shortcomings of that the sealing effectiveness in the prior art between cold bed chassis and petticoat pipe is poor.Sinter cooler of the present utility model, including：Load the more piece cooling chassis of sintering deposit；Several petticoat pipes on more piece cooling chassis；Also include：Dynamic sealing device for sealing gap between cooling chassis and petticoat pipe；Wherein, the upper end of dynamic sealing device is fixed on the side of petticoat pipe, and lower end suspension downwards is simultaneously pressed on cooling chassis under gravity.The utility model improves the sealing effectiveness between cold bed chassis and petticoat pipe.

Description

A sintering cooling machine and its dynamic sealing equipment

technical field

The utility model belongs to the field of sintering equipment in the iron and steel metallurgy industry, and more specifically relates to a sintering cooling machine and dynamic sealing equipment thereof.

Background technique

In steel production, sintering production is one of the important processes, which provides high-quality raw materials for blast furnace ironmaking. After the sintering is completed, when the cooling bed trolley carries the hot sintered clinker and moves directional on the track, the bellows blows air upwards at the bottom of the cooling bed trolley, and the cold air passes through the sintering material layer to cool the sintering material. After being heated, it is sent to In this way, the sensible heat in the sintered material layer can be recovered to improve energy utilization efficiency. In order to increase the hot air temperature as much as possible, it is necessary to ensure that there is a reliable seal between the cooling bed trolley and the fume hood in the sintering cooler, that is, no air leakage or as little air leakage as possible. Reducing the air leakage of the sinter cooler is the focus and difficulty of sinter design and production maintenance. Because there is a gap between the top of the cooling bed trolley and the bottom of the fume hood of the sinter cooler, the air leakage is serious, sometimes even reaching more than 50%, which not only reduces the power generation of the waste heat boiler Increase the power consumption of the blower, form noise pollution, and limit the improvement of sintering production efficiency and affect product quality.

The seal between the cooling bed trolley and the smoke hood in the traditional sintering cooler is made of a fiberboard with a certain strength, and one side of the fiberboard is fixed on the fume hood, and the dynamic friction between the fiberboard and the top of the cooling bed trolley is used. Sealing is achieved, but the sealing effect of this line sealing method is relatively poor, and due to the large temperature difference between the two sides of the fiberboard, after periodic thermal expansion and contraction, the strength of the fiberboard itself is attenuated, and the deformed fiberboard exerts pressure on the top of the cooling bed trolley. The gap between the two is getting bigger and bigger, and the air leakage rate is gradually increasing; moreover, due to the wear of the track, misalignment between adjacent cooling bed trolleys on the track is prone to occur, and this misalignment will make the cooling bed platform During the movement of the car, the fiberboard is scraped and collided, causing the fiberboard to be damaged or even fall off, resulting in a substantial increase in the air leakage rate.

Regarding the sealing device used on the sintering cooler, related patents have been disclosed in the prior art, such as the patent publication number: CN 101368794 A, the date of publication: February 18, 2009, and the name of the invention is: sintering machine, sintering cooler And its suspension sealing device, the application discloses a sinter cooler and its suspension sealing equipment that reduce the power consumption of the fan, reduce the air leakage of the equipment, improve the efficiency of waste heat recovery, and improve the environment; the sinter cooler of the application includes: Multi-section trolleys loaded with sintering ore; several elevated fume hoods located on the multi-section trolleys; bellows located under each trolley, the slides of the bellows are in sliding contact with the elastic slide plates of the corresponding trolleys; installed on the Suspended sealing device between every two adjacent smoke hoods on a multi-section trolley; wherein, the upper end of the suspended sealing device is suspended at the junction of two adjacent smoke hoods, and the lower end is suspended on the trolley on sinter. But the deficiencies of this application are: (1) the sealing position of the suspension type sealing method is the junction of two adjacent smoke hoods. The role of the fume hood cannot be applied to the dynamic seal between the cooling bed trolley and the fume hood; (2) The flexible sealing method relies on the effect of wind pressure to seal, and when the wind pressure fluctuates greatly, it is prone to leakage , the sealing stability is not high.

To sum up, how to improve the sealing effect between the cooling bed trolley and the fume hood is a technical problem that needs to be solved urgently in the prior art.

Utility model content

1. The technical problems to be solved by the utility model

The purpose of this utility model is to overcome the shortage of poor sealing effect between the cooling bed trolley and the fume hood in the prior art, provide a sintering cooler and its dynamic sealing equipment, and improve the gap between the cooling bed trolley and the fume hood. between the sealing effect.

2. Technical solution

In order to achieve the above object, the technical solution provided by the utility model is:

The sintering cooling machine of the present utility model comprises:

Multi-section cooling trolley loaded with sinter;

Several fume hoods positioned on the multi-section cooling trolley;

Also includes:

A dynamic sealing device for sealing the gap between the cooling trolley and the fume hood;

Wherein, the upper end of the dynamic sealing device is fixed on the side of the smoke hood, and the lower end hangs downwards and presses on the cooling trolley under the action of gravity.

As a further improvement of the sintering cooler of the present utility model, the dynamic sealing device includes:

The upper end is fixed to the heat-resistant sealing layer on the side of the fume hood;

A counterweight is connected to the lower end of the heat-resistant sealing layer.

As a further improvement of the sintering cooler of the present invention, the heat-resistant sealing layer is made of flexible materials;

The upper part of the cooling trolley is provided with an inclined plate inclined downward, and the lower end of the heat-resistant sealing layer is pressed against the surface of the inclined plate under the gravity of the counterweight.

As a further improvement of the sintering cooling machine of the present utility model, the heat-resistant sealing layer is arranged along the length direction of the fume hood, and a guide plate is respectively provided on both sides of the lower end of the heat-resistant sealing layer, and the guide plate and the The surface of the inclined plate maintains the included angle.

As a further improvement of the sintering cooler of the present invention, the heat-resistant sealing layer includes at least one layer of high-temperature-resistant cloth, and the counterweight is fixed on the surface of the high-temperature-resistant cloth or in the interlayer of the high-temperature-resistant cloth .

As a further improvement of the sintering cooling machine of the present invention, the counterweight is placed in the interlayer of the outermost layer of high-temperature resistant cloth, and the counterweight is sequentially bound by the heat-resistant flexible layer and the heat-resistant layer from the inside to the outside. layer wrapping.

As a further improvement of the sintering cooling machine of the present utility model, a baffle plate is respectively installed on both sides of the outermost layer of high-temperature-resistant cloth along the length direction on which the counterweight is placed, and the bolts pass through the baffle plate and the outermost layer of high-temperature-resistant cloth in sequence. The interlayers on both sides of the outermost high temperature resistant cloth along the length direction are clamped;

A compression plate extending along the length direction is installed in the middle of the outermost layer of high temperature resistant cloth. The two ends of the compression plate along the width direction are respectively provided with outward arc-shaped flanging, and the bolts pass through the compression plate and the outermost layer in turn. High temperature resistant cloth, so that the interlayer in the middle of the outermost layer of high temperature resistant cloth is sandwiched.

As a further improvement of the sintering cooling machine of the present invention, the heat-resistant sealing layer includes a bottom layer of high-temperature resistant cloth, a middle layer of high-temperature resistant cloth and an outer layer of high-temperature resistant cloth from the inside to the outside, and the counterweight is placed on the outer layer In the interlayer of high temperature resistant cloth;

The counterweight is an iron chain or other counterweight units that are flexibly connected;

The included angle between the inclined plate and the horizontal plane is 15° to 75°;

The heat-resistant flexible layer is thermal insulation cotton and or ceramic fiber cloth, and the heat-resistant binding layer is metal foil paper and or metal foil tape.

As a further improvement of the sintering cooling machine of the present utility model, the upper end of the heat-resistant sealing layer is clamped and fixed between an inner angle steel and an outer angle steel, and the outer surface of the inner angle steel bend is sealed and welded to the the side of the fume hood;

Or an asbestos board is screwed to the side of the fume hood and the upper end of the heat-resistant sealing layer is clamped and fixed between the asbestos board and the fume hood.

The dynamic sealing equipment for sintering cooling machine of the present utility model comprises:

A dynamic sealing device used to seal the gap between the cooling trolley and the fume hood of the sintering cooler;

Wherein, the upper end of the dynamic sealing device is fixed on the side of the smoke hood, and the lower end hangs downwards and presses on the cooling trolley under the action of gravity.

As a further improvement of the dynamic sealing equipment of the present utility model, the dynamic sealing device includes:

The upper end is fixed to the heat-resistant sealing layer on the side of the fume hood;

A counterweight is connected to the lower end of the heat-resistant sealing layer.

As a further improvement of the dynamic sealing device of the present invention, the heat-resistant sealing layer is made of flexible materials;

The upper part of the cooling trolley is provided with an inclined plate inclined downward, and the lower end of the heat-resistant sealing layer is pressed against the surface of the inclined plate under the gravity of the counterweight.

As a further improvement of the dynamic sealing device of the present invention, the heat-resistant sealing layer is arranged along the length direction of the smoke hood, and a guide plate is respectively provided on both sides of the lower end of the heat-resistant sealing layer, and the guide plate and the The surface of the inclined plate maintains the included angle.

As a further improvement of the dynamic sealing device of the present invention, the heat-resistant sealing layer includes at least one layer of high-temperature-resistant cloth, and the counterweight is fixed on the surface of the high-temperature-resistant cloth or in the interlayer of the high-temperature-resistant cloth .

As a further improvement of the dynamic sealing device of the present invention, the counterweight is placed in the interlayer of the outermost heat-resistant cloth, and the counterweight is sequentially bound by the heat-resistant flexible layer and the heat-resistant layer from the inside to the outside. layer wrapping.

As a further improvement of the dynamic sealing device of the present invention, a baffle plate is respectively installed on both sides of the outermost layer of high-temperature-resistant cloth along the length direction where the counterweight is placed, and the bolts pass through the baffle plate and the outermost layer of high-temperature-resistant cloth in turn. The interlayers on both sides of the outermost high temperature resistant cloth along the length direction are clamped;

A compression plate extending along the length direction is installed in the middle of the outermost layer of high temperature resistant cloth. The two ends of the compression plate along the width direction are respectively provided with outward arc-shaped flanging, and the bolts pass through the compression plate and the outermost layer in turn. High temperature resistant cloth, so that the interlayer in the middle of the outermost layer of high temperature resistant cloth is clamped.

As a further improvement of the dynamic sealing device of the present utility model, the heat-resistant sealing layer sequentially includes a bottom layer of high-temperature resistant cloth, an intermediate layer of high-temperature resistant cloth and an outer layer of high-temperature resistant cloth from the inside to the outside, and the counterweight is placed on the outer layer In the interlayer of high temperature resistant cloth;

The counterweight is an iron chain or other counterweight units that are flexibly connected;

The included angle between the inclined plate and the horizontal plane is 15° to 75°;

The heat-resistant flexible layer is thermal insulation cotton and or ceramic fiber cloth, and the heat-resistant binding layer is metal foil paper and or metal foil tape.

As a further improvement of the dynamic sealing device of the present utility model, the upper end of the heat-resistant sealing layer is clamped and fixed between an inner angle steel and an outer angle steel, and the outer surface of the bending part of the inner angle steel is sealed and welded to the the side of the fume hood;

Or an asbestos board is screwed to the side of the fume hood and the upper end of the heat-resistant sealing layer is clamped and fixed between the asbestos board and the fume hood.

3. Beneficial effect

Compared with the prior art, the technical solution provided by the utility model has the following remarkable effects:

(1) The sintering cooling machine of the present utility model is developed for the problems of poor sealing between the existing cooling trolley and the upper smoke hood during the movement process, hot air leakage, and cold air suction. A heat-resistant sealing layer is set between the trolley and the smoke hood. The heat-resistant sealing layer is made of flexible materials. The lower end of the heat-resistant sealing layer is in close contact with the inclined plate through a counterweight to realize the cooling of the smoke hood and the trolley. Good dynamic seal between them, the air leakage rate is greatly reduced, and the power generation of the boiler is significantly increased.

(2) In the existing actual production process, it is difficult to find a material with high temperature resistance, good wear resistance and good lubricity to replace the fiberboard. Therefore, although there are some problems in the way of sealing with fiberboard, those of ordinary skill in the art are also very familiar with it. There is little incentive to study the sealing problem at this location. However, the sintering cooler of the utility model can be installed and deployed in a short period of time according to the general maintenance requirements of the sintering cooler, and is suitable for popularization and use.

Description of drawings

Fig. 1 is the structural representation of the sintering cooling machine of embodiment 1;

Fig. 2 is a schematic diagram of the cross-sectional structure of A-A in Fig. 1;

Fig. 3 is a partially enlarged view of part I in Fig. 1;

Fig. 4 is a partially enlarged view of part II in Fig. 2 .

Explanation of the labels in the schematic diagram:

1. Inner angle steel; 2. Outer angle steel; 3. Smoke hood; 4. Cooling trolley; 5. Compression plate; 6. Baffle plate; 7. Guide plate; 8. Counterweight; 10. Middle layer of high temperature resistant cloth; 11. Outer layer of high temperature resistant cloth; 12. Heat resistant sealing layer; 13. Inclined plate; 14. Heat resistant flexible layer; 15. Heat resistant binding layer;

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Example 1

The seal between the cooling bed trolley and the smoke hood in the traditional sintering cooler is made of a fiberboard with a certain strength, and one side of the fiberboard is fixed on the fume hood, and the dynamic friction between the fiberboard and the top of the cooling bed trolley is used. Sealing is achieved, but the sealing effect of this line sealing method is relatively poor, and due to the large temperature difference between the two sides of the fiberboard, after periodic thermal expansion and contraction, the strength of the fiberboard itself is attenuated, and the deformed fiberboard exerts pressure on the top of the cooling bed trolley. The gap between the two is getting bigger and bigger, and the air leakage rate is gradually increasing; moreover, due to the wear of the track, there is a misalignment between adjacent cooling bed trolleys on the track, which will make the cooling bed trolley Scratching with the fiberboard during exercise will cause the fiberboard to be damaged or even fall off, resulting in a substantial increase in the air leakage rate. That is to say, in the prior art, the use of fiberboard to seal between the cooling bed trolley and the fume hood mainly has the following problems: the sealing is realized by the pressure of the fiberboard on the top of the cooling bed trolley, and when the deformation of the fiberboard itself is large, it will cause Air leakage rate increases; and the sintered cooling machine of this embodiment can skillfully avoid the above problems.

Referring to Figures 1 to 4, the sinter cooler of this embodiment includes: a multi-section cooling trolley 4 loaded with sintered ore, several fume hoods 3 located on the multi-section cooling trolley 4, and a sealing cooling trolley 4 The dynamic sealing device for the gap between the fume hood and 3. Wherein, the upper end of the dynamic sealing device is fixed on the side of the fume hood 3 , and the lower end hangs downward and is pressed on the cooling trolley 4 under the action of gravity.

In this embodiment, the upper end of the dynamic sealing device is fixed on the side of the fume hood 3, and the lower end hangs downward and presses on the cooling trolley 4 under the action of gravity, so that a dynamic seal is realized between the cooling trolley 4 and the fume hood 3 , avoiding the air leakage problem caused by the large degree of deformation of the fiberboard in the prior art; specifically, the dynamic sealing device in this embodiment is pressed on the cooling trolley 4 under the action of gravity, rather than relying on it like the fiberboard Its own elastic force presses on the cooling trolley 4, thus ensuring that the dynamic sealing device can still be tightly pressed on the cooling trolley 4 after periodic thermal expansion and contraction, which greatly improves the contact between the cooling bed trolley 4 and the smoke. Sealing effect between covers 3.

Example 2

Referring to Figures 1 to 4, the structure of the sinter cooler of this embodiment is basically the same as that of Embodiment 1, further:

Wherein, the dynamic sealing device includes: a heat-resistant sealing layer 12 whose upper end is fixed on the side of the hood 3 , and a counterweight 8 is connected to the lower end of the heat-resistant sealing layer 12 .

In this embodiment, the heat-resistant sealing layer 12 can play a good sealing role, and can withstand higher ambient temperature during work; the counterweight 8 is connected to the lower end of the heat-resistant sealing layer 12, so that the heat-resistant sealing layer 12 The lower end is compressed on the cooling trolley 4 under the gravity of the counterweight 8 to realize the compression and sealing effect.

Example 3

Referring to Figures 1 to 4, the structure of the sinter cooler of this embodiment is basically the same as that of Embodiment 2, further:

The heat-resistant sealing layer 12 is made of flexible materials; the upper part of the cooling trolley 4 is provided with an inclined plate 13 inclined downward, and the lower end of the heat-resistant sealing layer 12 is pressed against the surface of the inclined plate 13 under the gravity of the counterweight 8 .

In this embodiment, the upper part of the cooling trolley 4 is provided with an inclined plate 13 inclined downward, and the lower end of the heat-resistant sealing layer 12 is pressed against the surface of the inclined plate 13 under the gravity of the counterweight 8, wherein the inclined plate 13 is inclined downward. The inclined plate 13 can be arranged on the inner side of the upper part of the cooling trolley 4, and can also be arranged on the outer side of the upper part of the cooling trolley 4, as long as the lower end of the heat-resistant sealing layer 12 is pressed against the inclined plate 13 under the gravity of the counterweight 8 The outer surface of the cooling trolley 4 can be sealed; specifically, in this embodiment, the inclined plate 13 inclined downward is arranged on the outer side of the upper part of the cooling trolley 4 .

In this embodiment, the inclined plate 13 is used to form a contact seal with the lower end of the heat-resistant sealing layer 12, wherein the inclined setting of the inclined plate 13, on the one hand, lifts the lower end of the heat-resistant sealing layer 12, so that the gravity of the counterweight 8 There is a component force in the direction perpendicular to the surface of the inclined plate 13, so that the lower end of the heat-resistant sealing layer 12 can be pressed against the surface of the inclined plate 13; The contact area between them, and the heat-resistant sealing layer 12 is made of flexible materials, so that a surface seal is formed between the lower end of the heat-resistant sealing layer 12 and the inclined plate 13, which greatly improves the sealing effect of the heat-resistant sealing layer 12, thereby greatly Increase the temperature of the hot air, thereby improving the efficiency of the waste heat boiler for power generation, and the potential for energy saving is great. (in the prior art, the fiberboard is made of non-flexible material, and the fiberboard utilizes its own elastic force to seal between the cooling bed trolley and the fume hood, and the contact point between the fiberboard and the cooling bed trolley top is the stress point, and these stressed The connection of the points forms a line seal, and its sealing effect is relatively poor compared to the surface seal.)

It should be noted that the dynamic sealing device in this embodiment plays a dynamic sealing effect. In actual use, the lower end of the heat-resistant sealing layer 12 keeps sliding relatively on the surface of the inclined plate 13, and is always in close contact with the surface of the inclined plate 13. Surface contact, to achieve a good dynamic sealing effect.

Example 4

With reference to Fig. 1～4, the sintering cooling machine of this embodiment, its structure is basically the same as embodiment 3, further:

The heat-resistant sealing layer 12 is arranged along the length direction of the fume hood 3, and a guide plate 7 is respectively provided on both sides of the lower end of the heat-resistant sealing layer 12, and the guide plate 7 maintains an angle with the surface of the inclined plate 13.

Due to the wear and tear of the track, dislocation between adjacent cooling trolleys 4 on the track is prone to occur. In order to avoid the adverse effects caused by the dislocation, a guide plate 7 is respectively provided on both sides of the lower end of the heat-resistant sealing layer 12 in this embodiment, and guides The plate 7 maintains an angle with the surface of the inclined plate 13, and the guide plate 7 can guide the relative movement between the lower end of the heat-resistant sealing layer 12 and the inclined plate 13, so as to avoid the top of the cooling trolley 4 where the heat-resistant sealing layer 12 is staggered Scrape to ensure that the lower end of the heat-resistant sealing layer 12 and the surface of the inclined plate 13 are always well sealed to avoid air leakage.

Example 5

With reference to Fig. 1～4, the sintering cooling machine of this embodiment, its structure is basically the same as embodiment 4, further:

The heat-resistant sealing layer 12 includes at least one layer of high-temperature-resistant cloth, and the counterweight 8 is fixed on the surface of the high-temperature-resistant cloth or in an interlayer of the high-temperature-resistant cloth.

In this embodiment, the heat-resistant sealing layer 12 may include multiple layers of high-temperature-resistant cloth (3 to 8 layers are recommended). According to the heat-resistant and wear-resistant characteristics of the high-temperature-resistant cloth, the positions of the thinner cloth and the thicker cloth are reasonably allocated. The thickness of the layer of high temperature resistant cloth is controlled between 0.1mm and 0.4mm. The counterweight 8 can be sewed on the surface of the high temperature resistant cloth by wire or fixed in the interlayer of the high temperature resistant cloth, because the lower end of the heat resistant sealing layer 12 is surface sealed with the surface of the inclined plate 13, and the heat resistant sealing layer 12 includes multiple A layer of high temperature resistant cloth, which is not easy to be worn and has a long service life.

Example 6

With reference to Fig. 1～4, the sintering cooling machine of this embodiment, its structure is basically the same as embodiment 5, further:

In the present embodiment, the counterweight 8 is placed in the interlayer of the outermost high-temperature-resistant cloth, so that the multi-layer high-temperature-resistant cloth can be pressed against the surface of the inclined plate 13 by the gravity of the counterweight 8; and the counterweight Object 8 is wrapped by heat-resistant flexible layer 14 and heat-resistant binding layer 15 successively from inside to outside.

It should be noted that in this embodiment, the heat-resistant flexible layer 14 and the heat-resistant binding layer 15 play different roles respectively, wherein the heat-resistant flexible layer 14 is made of heat-resistant and flexible materials, and is used to directly wrap the counterweight 8 , by wrapping the heat-resistant flexible layer 14, the surface area outside the counterweight 8 is significantly enlarged, and the effective contact area between the lower end of the heat-resistant sealing layer 12 and the inclined plate 13 is greatly increased, thereby improving the surface sealing effect. The heat-resistant binding layer 15 is made of heat-resistant material, and mainly plays the role of fixing the heat-resistant flexible layer 14 on the outside.

Example 7

With reference to Fig. 1～4, the sintering cooling machine of this embodiment, its structure is basically the same as embodiment 6, further:

A baffle plate 6 is respectively installed on both sides of the outermost layer of high-temperature-resistant cloth on which the counterweight 8 is placed along the length direction. The interlayers on both sides are clamped; the installation of the baffle plate 6 is used to limit the lateral movement of the counterweight 8 in the interlayers on both sides of the outermost layer of high temperature resistant cloth, so as to ensure that the counterweight 8 does not move from the outermost layer of high temperature resistant cloth. The heat cloth slides out on both sides.

In this embodiment, a pressing plate 5 extending along the length direction is installed in the middle of the outermost layer of high-temperature-resistant cloth, which can press the multi-layer high-temperature-resistant cloth against the surface of the inclined plate 13 along the entire length direction. Both ends of the compression plate 5 along the width direction are respectively provided with outward arc-shaped flanges, and the bolts pass through the compression plate 5 and the outermost high-temperature-resistant cloth in turn, so that the interlayer in the middle of the outermost high-temperature-resistant cloth is clamped (through the cooperation of bolts and nuts), thereby preventing the longitudinal movement of the counterweight 8, and simultaneously can effectively compress the counterweight 8 on the surface of the inclined plate 13; the two ends of the pressing plate 5 along the width direction are respectively provided with The outward arc-shaped flanging can not only prevent the pressing plate 5 from scratching the high-temperature-resistant cloth, but also make the outermost layer of high-temperature-resistant cloth be pressed more tightly on the inclined plate 13 .

Example 8

Referring to Figures 1 to 4, the structure of the sinter cooler of this embodiment is basically the same as that of Embodiment 7, further:

In this embodiment, the heat-resistant sealing layer 12 sequentially includes the bottom heat-resistant cloth 9, the middle layer heat-resistant cloth 10 and the outer heat-resistant cloth 11 from the inside to the outside, and the counterweight 8 is placed in the interlayer of the outer heat-resistant cloth 11 The bottom heat-resistant cloth 9 and the middle layer heat-resistant cloth 10 can avoid the abrasion of the outer heat-resistant cloth 11, and the design of three layers of heat-resistant cloth improves the sealing effect of the heat-resistant sealing layer 12.

In this embodiment, the counterweight 8 is an iron chain or other counterweight units that adopt flexible connections. The heat-resistant flexible layer 14 is wrapped, so as to better realize the surface sealing between the lower end of the heat-resistant sealing layer 12 and the surface of the inclined plate 13 .

When the angle between the inclined plate 13 and the horizontal plane is too small, the pressure between the counterweight 8 and the surface of the inclined plate 13 is too small, which is not conducive to the sealing effect of the surface seal. When the angle between the inclined plate 13 and the horizontal plane is too large, the heat-resistant seal When the lower end of the layer 12 and the inclined plate 13 maintain relative movement, the heat-resistant sealing layer 12 is prone to wrinkles, which also reduces the sealing effect of the surface seal; in this embodiment, the angle between the inclined plate 13 and the horizontal plane is designed to be 15- 75°, which effectively avoids the above-mentioned problems. Specifically, in this embodiment, the angle between the inclined plate 13 and the horizontal plane is 15°.

In this embodiment, the heat-resistant flexible layer 14 is thermal insulation cotton or ceramic fiber cloth, and the heat-resistant binding layer 15 is metal foil paper and or metal foil tape. Specifically, in this embodiment, the outside of the counterweight 8 is wrapped by a layer of thermal insulation cotton. First, glue is applied on the outer side of the thermal insulation cotton, and then a layer of metal foil is wrapped on the outer side of the thermal insulation cotton. Metal foil tapes distributed at equal intervals are wound and fastened.

Example 9

Referring to Figures 1 to 4, the structure of the sinter cooler of this embodiment is basically the same as that of Embodiment 8, further:

In this embodiment, the upper end of the heat-resistant sealing layer 12 is clamped and fixed between an inner angle steel 1 and an outer angle steel 2, and the outer surface of the bending part of the inner angle steel 1 is sealed and welded to the side of the fume hood 3, wherein the inner angle steel 1. The sealing weld on the outer surface of the bend is the sealing welding line 16. The sealing welding line 16 is not only the fulcrum for the inner angle steel 1 to be fixed on the side of the fume hood 3, but also the fulcrum between the inner angle steel 1 and the side of the fume hood 3. The sealing place can prevent the hot air from leaking here. In this embodiment, the sealing welding line 16 has passed the engineering withstand voltage test, and the air leakage rate is controlled below 0.1%.

The sintering cooling machine of this embodiment is developed in view of the poor sealing between the existing cooling trolley 4 and the upper fume hood 3 during movement, and problems such as leakage of hot air and suction of cold air. A heat-resistant sealing layer 12 is arranged between the car 4 and the fume hood 3, and the heat-resistant sealing layer 12 is made of flexible materials. With good dynamic sealing between the smoke hood 3 and the cooling trolley 4, the air leakage rate is reduced from 50% to below 20%, the power generation of the boiler is increased by about 10%, and the payback period is less than half a year. It should be noted that the dynamic sealing device in this embodiment is not only suitable for the dynamic sealing cooperation between the cooling trolley 4 and the fume hood 3 in the sintering cooler, but also suitable for the dynamic sealing cooperation between similar dynamic and static objects.

In the existing actual production process, it is difficult to find a material with high temperature resistance, good wear resistance and good lubricity to replace fiberboard. Therefore, although there are some problems in the way of sealing with fiberboard, it is difficult for ordinary skilled in the art to understand. The motivation for the study of the sealing problem at this location. However, the sintering cooling machine of this embodiment only needs to follow the general maintenance requirements of the sintering cooling machine, and a simple and effective dynamic sealing device can be installed and deployed in a short time, which is suitable for popularization and use.

Example 10

The sintering cooling machine of the present embodiment, its structure is basically the same as embodiment 9, and its difference is:

The fixing mode of heat-resistant sealing layer 12 is different from embodiment 8 in the present embodiment, and in the present embodiment, an asbestos board is screwed on the side of fume hood 3 and the upper end of heat-resistant sealing layer 12 is clamped and fixed on asbestos board and Between the fume hoods 3, the upper end of the heat-resistant sealing layer 12 can be fixed on the fume hood 3 conveniently.

Example 11

The structure of the sintering cooling machine of this embodiment is basically the same as that of Embodiment 9, the difference is that in this embodiment, the included angle between the inclined plate 13 and the horizontal plane is 75°.

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (10)

1. a kind of dynamic sealing equipment for sinter cooler, it is characterised in that including：

For the dynamic sealing device in gap between the cooling chassis (4) and petticoat pipe (3) of sealed sintering cooler；

Wherein, the upper end of the dynamic sealing device is fixed on the side of the petticoat pipe (3), and lower end hangs downwards and in Action of Gravity Field Under be pressed on cooling chassis (4).

2. the dynamic sealing equipment for sinter cooler according to claim 1, it is characterised in that the dynamic sealing device Including：

Temperature resistant encapsulation layer (12) of the petticoat pipe (3) side is fixed in upper end；

Mass (8), its lower end for being connected to temperature resistant encapsulation layer (12).

3. the dynamic sealing equipment for sinter cooler according to claim 2, it is characterised in that：

Temperature resistant encapsulation layer (12) is made of flexible material；

The top of cooling chassis (4) is provided with inclined hang plate (13) downwards, the lower end of temperature resistant encapsulation layer (12) The surface of the hang plate (13) is pressed under the Action of Gravity Field of mass (8).

4. the dynamic sealing equipment for sinter cooler according to claim 3, it is characterised in that：

Temperature resistant encapsulation layer (12) is set along the length direction of petticoat pipe (3), and temperature resistant encapsulation layer (12) lower end both sides A guide plate (7) is respectively equipped with, the guide plate (7) keeps angle with the hang plate (13) surface.

5. the dynamic sealing equipment for sinter cooler according to claim 3, it is characterised in that：

Temperature resistant encapsulation layer (12) includes at least one of which high-temperature-resistant cloth, and the mass (8) is fixed on the table of high-temperature-resistant cloth Face is fixed in the interlayer of high-temperature-resistant cloth.

6. the dynamic sealing equipment for sinter cooler according to claim 5, it is characterised in that：

The mass (8) is placed in the interlayer of outermost layer high-temperature-resistant cloth, and the mass (8) is resistance to successively from inside to outside Thermal flexibility layer (14) and heat-resisting bond course (15) parcel.

7. the dynamic sealing equipment for sinter cooler according to claim 6, it is characterised in that：

The outermost layer high-temperature-resistant cloth of placement mass (8) both sides along its length are separately installed with a baffle plate (6), and bolt is successively Through baffle plate (6) and outermost layer high-temperature-resistant cloth so that the interlayer of outermost layer high-temperature-resistant cloth both sides along its length is jammed；

One pressure strip for extending along its length (5) is installed, pressure strip (5) is in the width direction in the middle part of outermost layer high-temperature-resistant cloth Be respectively arranged at two ends with outside arc flange, screw bolt passes pressure strip (5) and outermost layer high-temperature-resistant cloth so that outermost layer Interlayer in the middle part of high-temperature-resistant cloth is jammed.

8. the dynamic sealing equipment for sinter cooler according to claim 7, it is characterised in that：

Temperature resistant encapsulation layer (12) includes bottom high-temperature-resistant cloth (9), intermediate layer high-temperature-resistant cloth (10) and outward successively from inside to outside Layer high-temperature-resistant cloth (11), the mass (8) is placed in the interlayer of outer layer high-temperature-resistant cloth (11)；

The mass (8) is iron chains or the counterweight element of other use flexible connections；

The hang plate (13) is 15~75 ° with the angle of horizontal plane；

Heat-resistant flexible layer (14) is heat-preservation cotton and/or ceramic fiber cloth, the heat-resisting bond course (15) for metal foil paper and/or Metallic foil.

9. the dynamic sealing equipment for sinter cooler according to claim 8, it is characterised in that：

The upper end of temperature resistant encapsulation layer (12) is clamped and is fixed between angle steel in (1) and an outboard angle (2) and described interior Side of the outer surface sealing welding of angle steel (1) bending part in the petticoat pipe (3)；

Or one the asbestos board side and temperature resistant encapsulation layer (12) that are threaded in the petticoat pipe (3) upper end be clamped it is solid It is scheduled between the asbestos board and the petticoat pipe (3).

10. a kind of sinter cooler, including：

The more piece for loading sintering deposit cools down chassis (4)；

Several petticoat pipes (3) on chassis (4) are cooled down positioned at the more piece；

Characterized by further comprising：

For seal it is described cooling chassis (4) and the petticoat pipe (3) between gap as described in claim 2~9 any one Dynamic sealing device.