CN212757826U - Boiler tail gas treatment device - Google Patents
Boiler tail gas treatment device Download PDFInfo
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- CN212757826U CN212757826U CN202020583857.1U CN202020583857U CN212757826U CN 212757826 U CN212757826 U CN 212757826U CN 202020583857 U CN202020583857 U CN 202020583857U CN 212757826 U CN212757826 U CN 212757826U
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Abstract
The utility model relates to a boiler tail gas processing apparatus's field particularly, relates to a boiler tail gas processing apparatus, cooperates and uses in the boiler. The boiler tail gas treatment device comprises a bag-type dust collector, a Venturi dust collector, a water mist dust collector, a tail gas fan and a sedimentation tank. The tail gas outlet of the boiler is connected with the gas inlet of the bag-type dust collector. The rear part of the air outlet of the bag-type dust collector is sequentially connected with a Venturi dust collector and a water mist dust collector. The tail gas fan is connected with the gas outlet of the water mist dust remover. The water inlet of the Venturi dust collector and the water inlet of the water mist dust collector are both connected with the water outlet of the sedimentation tank. The water outlet of the Venturi dust collector and the water outlet of the water mist dust collector are both connected to the water inlet of the sedimentation tank. The tail gas is firstly introduced into a bag-type dust collector to filter out most of smoke dust, and then the smoke dust can be transported out for reuse. A small amount of smoke dust in the air filtered by the bag-type dust collector is basically and completely removed by the Venturi dust collector and the water mist dust collector, and the effect is good.
Description
Technical Field
The utility model relates to a boiler tail gas processing apparatus's field particularly, relates to a boiler tail gas processing apparatus.
Background
A large amount of smoke is generated in the use of 25T/h coal-fired boilers. The fumes can contaminate the air if discharged directly to the atmosphere. Therefore, boiler tail gas treatment is required.
The boiler tail gas treatment in the prior art generally adopts water film dust removal equipment for dust removal treatment. The tail gas treatment device does not completely treat the smoke dust in the tail gas. Meanwhile, the treated smoke dust enters a sedimentation tank along with the return water of the water film dust removal equipment, so that the later cleaning is troublesome, and the smoke dust cannot be well recycled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a boiler tail gas processing apparatus, dust in its processing boiler tail gas that can be more complete, dust after the fine recovery processing simultaneously realizes the wastes material and recycles.
The embodiment of the utility model is realized like this:
a boiler tail gas treatment device is matched with a boiler for use; the boiler tail gas treatment device comprises a bag-type dust collector, a Venturi dust collector, a water mist dust collector, a tail gas fan and a sedimentation tank;
a tail gas outlet of the boiler is connected with a gas inlet of the bag-type dust collector; the rear part of the air outlet of the bag-type dust collector is sequentially connected with the Venturi dust collector and the water mist dust collector; the tail gas fan is connected with the gas outlet of the water mist dust remover;
the water inlet of the Venturi dust collector and the water inlet of the water mist dust collector are both connected with the water outlet of the sedimentation tank; and the water outlet of the Venturi dust collector and the water outlet of the water mist dust collector are both connected to the water inlet of the sedimentation tank.
And further, a dust outlet end of the bag-type dust remover is connected with a dust storage bin through a pipe chain machine.
Further comprises a filter press and a transit water tank; the water outlet of the Venturi dust remover and the water outlet of the water mist dust remover are both connected with the transit water tank; the water outlet of the transfer water tank is connected with the water inlet of the filter press; and the water inlet of the filter press is connected with the water inlet of the sedimentation tank.
Further, the transit water pool is also provided with a stirring device.
Further, an annular sprayer is further arranged inside the water mist dust remover.
Further comprises a chimney; and the gas outlet of the tail gas fan is connected to the chimney.
A plurality of ash storage bins are further arranged; and a valve is arranged at each ash storage bin of the pipe chain machine.
The utility model has the advantages that:
when the tail gas fan is used, the tail gas generated by the boiler is firstly introduced into the bag-type dust collector under the action of the tail gas fan. Most of the smoke dust in the tail gas is filtered out by the bag-type dust collector. The dust deposited in the bag-type dust collector is dry ash-shaped and can be transported out for reuse without any treatment. Generally, dry ash can be sold, thereby bringing additional revenue.
The air filtered by the bag-type dust collector also contains a small amount of smoke dust. The soot continues to flow through the venturi and water mist precipitators in sequence. After passing through the Venturi dust collector and the water mist dust collector, the smoke dust is basically completely removed. The air exhausted by the tail gas fan is clean air.
The dust cleaned by the Venturi dust remover and the water mist dust remover flows into the sedimentation tank through the backflow water. Because a large amount of dust is cleaned by the bag-type dust collector, the dust flowing into the sedimentation tank is less, the cleaning times of the sedimentation tank are greatly reduced, and the use is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a boiler tail gas treatment device provided by an embodiment of the present invention.
Icon:
1-boiler, 2-bag dust collector, 21-ash storage bin, 3-Venturi dust collector, 4-water mist dust collector, 41-annular sprayer, 5-tail gas fan, 6-sedimentation tank, 7-transfer water tank, 71-stirring device, 8-filter press and 9-chimney.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1, the present embodiment provides a boiler tail gas treatment device, which is used in conjunction with a boiler 1. The boiler 1 is a 25T/h coal-fired boiler 1, and can be other boilers 1. The boiler tail gas treatment device comprises a bag-type dust collector 2, a Venturi dust collector 3, a water mist dust collector 4, a tail gas fan 5 and a sedimentation tank 6.
The tail gas outlet of the boiler 1 is connected with the gas inlet of the bag-type dust collector 2. The air outlet of the bag-type dust collector 2 is connected with the air inlet of the Venturi dust collector 3. The air outlet of the Venturi dust collector 3 is connected with the air inlet of the water mist dust collector 4. The gas outlet of the water mist dust remover 4 is connected with a tail gas fan 5. The gas outlet of the tail gas fan 5 is connected with a chimney 9.
The water inlet of the venturi scrubber 3 and the water inlet of the water mist scrubber 4 are both connected to the water outlet of the sedimentation tank 6. The water outlet of the venturi scrubber 3 and the water outlet of the water mist scrubber 4 are both connected to the water inlet of the sedimentation tank 6.
When in use, under the action of the tail gas fan 5, the tail gas generated by the boiler 1 is firstly introduced into the bag-type dust collector 2. Most of the smoke dust in the tail gas is filtered out by the bag-type dust collector 2. The soot deposited in the bag-type dust collector 2 is dry ash-shaped and can be transported out for reuse without any treatment. Generally, dry ash can be sold, thereby bringing additional revenue.
The air filtered by the bag-type dust collector 2 also contains a small amount of smoke dust. The fumes continue to flow and pass through the venturi 3 and water mist 4 precipitators in sequence. After passing through the venturi scrubber 3 and the water mist scrubber 4, the smoke is substantially completely removed. The air exhausted to the chimney 9 by the tail gas fan 5 is clean air.
The dust cleaned by the Venturi dust collector 3 and the water mist dust collector 4 flows into the sedimentation tank 6 through the backflow water. Because a large amount of dust is cleared up by the bag-type dust collector 2, the dust flowing into the sedimentation tank 6 is little, the clearing times of the sedimentation tank 6 are greatly reduced, and the use is convenient.
In this embodiment, the dust outlet end of the bag-type dust collector 2 is connected to the dust storage bin 21 through a pipe chain machine. The pipe chain machine timely conveys the dry ash in the bag-type dust collector 2 to the ash storage bin 21 for temporary storage. Avoid the bag dust collector 2 interior accumulated pressure dry ash to lead to the dust removal effect poor. In practice, the ash storage 21 is provided in plural. The pipe chain machine is provided with a valve at each ash storage bin 21. The plurality of ash storage bins 21 can store dry ash, and the storage capacity is increased. Meanwhile, after any one ash storage bin 21 is damaged, the dry ash can also be stored in other dry ash storage bins.
In this embodiment, the filter press 8 and the transit water tank 7 are further included. The water outlet of the Venturi dust collector 3 and the water outlet of the water mist dust collector 4 are both connected with a transit water tank 7. The water outlet of the transfer water tank 7 is connected with the water inlet of the filter press 8. The water inlet of the filter press 8 is connected with the water inlet of the sedimentation tank 6. The waste water generated by the Venturi dust collector 3 and the water mist dust collector 4 is discharged to a transit water tank 7, and the filter press 8 filters the waste water in the transit water tank 7 and conveys the filtered water to a sedimentation tank 6. The venturi scrubber 3 and the water mist scrubber 4 can reuse the filtered water. This makes the water can recycle, reduces the cost.
In this embodiment, the transfer water tank 7 is further provided with a stirring device 71. This makes the waste water in the transfer pool 7 always in a flowing state, and prevents the impurities in the waste water from precipitating.
In this embodiment, an annular sprayer 41 is further disposed inside the water mist dust collector 4. This just makes the water smoke evenly distributed in water smoke dust remover 4 inside, and the more effective smoke and dust of filtering in the tail gas.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A boiler tail gas treatment device is matched with a boiler (1) for use; the method is characterized in that: the boiler tail gas treatment device comprises a bag-type dust collector (2), a Venturi dust collector (3), a water mist dust collector (4), a tail gas fan (5) and a sedimentation tank (6);
a tail gas outlet of the boiler (1) is connected with a gas inlet of the bag-type dust collector (2); the rear part of the air outlet of the bag-type dust collector (2) is sequentially connected with the Venturi dust collector (3) and the water mist dust collector (4); the tail gas fan (5) is connected with the gas outlet of the water mist dust remover (4);
the water inlet of the Venturi dust collector (3) and the water inlet of the water mist dust collector (4) are both connected with the water outlet of the sedimentation tank (6); the water outlet of the Venturi dust collector (3) and the water outlet of the water mist dust collector (4) are both connected to the water inlet of the sedimentation tank (6).
2. The boiler tail gas treatment device according to claim 1, characterized in that: the dust outlet end of the bag-type dust collector (2) is connected with a dust storage bin (21) through a pipe chain machine.
3. The boiler tail gas treatment device according to claim 1, characterized in that: the device also comprises a filter press (8) and a transit water tank (7); the water outlet of the Venturi dust collector (3) and the water outlet of the water mist dust collector (4) are both connected with the transfer water tank (7); the water outlet of the transfer water tank (7) is connected with the water inlet of the filter press (8); the water inlet of the filter press (8) is connected with the water inlet of the sedimentation tank (6).
4. The boiler tail gas treatment device according to claim 3, characterized in that: the transfer water tank (7) is also provided with a stirring device (71).
5. The boiler tail gas treatment device according to claim 1, characterized in that: an annular sprayer (41) is also arranged in the water mist dust remover (4).
6. The boiler tail gas treatment device according to claim 1, characterized in that: also comprises a chimney (9); and the gas outlet of the tail gas fan (5) is connected to the chimney (9).
7. The boiler tail gas treatment device according to claim 2, characterized in that: a plurality of ash storage bins (21) are arranged; and a valve is arranged at each ash storage bin (21) of the pipe chain machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583857.1U CN212757826U (en) | 2020-04-17 | 2020-04-17 | Boiler tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583857.1U CN212757826U (en) | 2020-04-17 | 2020-04-17 | Boiler tail gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212757826U true CN212757826U (en) | 2021-03-23 |
Family
ID=75065555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020583857.1U Active CN212757826U (en) | 2020-04-17 | 2020-04-17 | Boiler tail gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212757826U (en) |
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2020
- 2020-04-17 CN CN202020583857.1U patent/CN212757826U/en active Active
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