CN214680971U - SCR denitration low-resistance high-efficiency soot blower in cement industry - Google Patents
SCR denitration low-resistance high-efficiency soot blower in cement industry Download PDFInfo
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- CN214680971U CN214680971U CN202120987124.9U CN202120987124U CN214680971U CN 214680971 U CN214680971 U CN 214680971U CN 202120987124 U CN202120987124 U CN 202120987124U CN 214680971 U CN214680971 U CN 214680971U
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- soot blower
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- compressed air
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Abstract
The utility model discloses a high-efficient soot blower of cement industry SCR denitration low resistance, including the denitration reactor, be provided with catalyst module in the denitration reactor, the rake type soot blower is installed in the outside of denitration reactor, and the rake type soot blower is located between the two-layer catalyst module, and pneumatic drive valve is installed to the free end below of rake type soot blower, and the heat exchanger that rake type soot blower intercommunication denitration reactor exit set up, heat exchanger intercommunication compressed air storage tank, compressed air in the compressed air storage tank gets into the rake type soot blower through the heat exchanger. The utility model provides a high-efficient soot blower of cement industry SCR denitration low resistance through the structure of improvement rake type soot blower, improve compressed air's parameter, can avoid catalyst jam deposition, prolongs the life-span of catalyst, realizes the high-efficient steady operation of SCR denitration.
Description
Technical Field
The utility model belongs to the technical field of the cement trade soot blower, especially, relate to a high-efficient soot blower of cement trade SCR denitration low resistance.
Background
The research on SCR denitration technology in the domestic cement industry is less, but the SCR technology is widely applied in the thermal power industry, but the flue gas characteristics of the SCR technology and the thermal power industry are greatly different, and the dust content of the cement industry is greatly higher than that of the thermal power industry, so that the catalyst is easy to accumulate dust and block. The traditional soot blower valve can be opened only when the running vehicle advances for at least 300mm, so that a soot cleaning blind area exists on the upper surface of a catalyst module on one side of the rake type soot blower. The traditional soot blower cannot effectively solve the problem of catalyst blockage in the cement industry, so the existing soot blower in the cement industry needs to be further improved to solve the problem of catalyst blockage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, low resistance high efficiency, be used for cement industry's SCR denitration soot blower.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a high-efficient soot blower of cement industry SCR denitration low resistance, includes the denitration reactor, is provided with catalyst module in the denitration reactor, and the rake soot blower is installed in the outside of denitration reactor, and the rake soot blower is located between two-layer catalyst module, and the pneumatic drive valve is installed to the free end below of rake soot blower, and the heat exchanger that rake soot blower intercommunication denitration reactor exit set up, heat exchanger intercommunication compressed air storage tank, compressed air in the compressed air storage tank gets into the rake soot blower through the heat exchanger.
Further, the rake type soot blower comprises a soot blowing element which is a soot blowing rake, the soot blowing rake comprises a main pipe and a plurality of rake pipes, the main pipe and the rake pipes are located inside the denitration reactor, and the rake pipes are provided with a plurality of nozzles which can spray compressed air.
Further, a driving motor of the rake type soot blower is a variable frequency motor.
Furthermore, the rake type soot blowers are arranged in a plurality, the main pipes of the rake type soot blowers are arranged in parallel, and the rake pipes of the rake type soot blowers are arranged correspondingly.
Further, compression of the single rake sootblowerAir consumption of 9.8 m3Min, the air source pressure of the compressed air is 0.6-0.8 MPa, and the temperature of the compressed air is 250-280 ℃.
The utility model has the advantages that:
the utility model provides a high-efficient soot blower of cement industry SCR denitration low resistance through the structure of improvement rake type soot blower, improve compressed air's parameter, can avoid catalyst jam deposition, prolongs the life-span of catalyst, realizes the high-efficient steady operation of SCR denitration. Because the characteristic of the high dust of cement trade, directly jetting catalyst leads to catalyst upper portion fracture in order to prevent the compressed air of cold state, the utility model discloses a compressed air gets into the rake soot blower after the heat exchanger that sets up in SCR denitration reactor export flue heaies up. In addition, in order to ensure the soot blowing effect, the proper compressed air consumption and air source pressure need to be selected, otherwise, the soot blowing effect may not be achieved, or the energy waste is caused, and the catalyst may be damaged. The rake type soot blower adopts a pneumatic driving valve, can realize instant blowing and eliminate the original soot cleaning blind area, has a good soot cleaning effect, adopts a variable frequency motor, and can better ensure the normal operation of the soot blower compared with the original three-phase driving motor.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram showing the positional relationship between the mother pipe and the harrow pipe;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1-a denitration reactor; 2-a catalyst module; 3-rake soot blower; 4-pneumatically driving the valve; 5-a main pipe; 6-a harrow pipe; 7-a nozzle; 8-compressed air storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments, and in addition, the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the present invention.
As shown in fig. 1-3, the utility model discloses a high-efficient soot blower of cement industry SCR denitration low resistance, including denitration reactor 1, be provided with catalyst module 2 in the denitration reactor 1, rake soot blower 3 is installed in the outside of denitration reactor 1, and rake soot blower 3 is located between two-layer catalyst module 2, and pneumatic drive valve 4 is installed to the free end below of rake soot blower 3. The rake type soot blower 3 comprises a soot blowing element which is a soot blowing rake, the soot blowing rake comprises a main pipe 5 and a plurality of rake pipes 6, the main pipe 5 and the rake pipes 6 are positioned inside the denitration reactor 1, a plurality of nozzles 7 are arranged on the rake pipes 6, and the nozzles 7 can spray compressed air. The driving motor of the rake type soot blower 3 is a variable frequency motor. The rake type soot blowers 3 are arranged in a plurality of numbers, the main pipes 5 of the rake type soot blowers 3 are arranged in parallel, and the rake pipes 6 of the rake type soot blowers 3 are arranged correspondingly.
The rake type soot blower 3 is communicated with a heat exchanger arranged at the outlet of the denitration reactor, the heat exchanger is communicated with a compressed air storage tank 8, and compressed air in the compressed air storage tank 8 enters the rake type soot blower 3 through the heat exchanger. The compressed air consumption of a single rake type soot blower 3 is 9.8 m3Min, the air source pressure of the compressed air is 0.6-0.8 MPa, and the temperature of the compressed air is 250-280 ℃.
When the denitration catalyst is used, kiln tail flue gas flows from one side to the other side in the denitration reactor 1 through the catalyst module 2, the rake type soot blower 3 is installed in the middle of the catalyst module 2, and compressed air in the compressed air storage tank 8 enters the rake type soot blower 3 through the heat exchanger.
Claims (5)
1. The utility model provides a high-efficient soot blower of cement industry SCR denitration low resistance, a serial communication port, including the denitration reactor, be provided with catalyst module in the denitration reactor, the harrow formula soot blower is installed in the outside of denitration reactor, the harrow formula soot blower is located between two-layer catalyst module, the pneumatic drive valve is installed to the free end below of harrow formula soot blower, the heat exchanger that harrow formula soot blower intercommunication denitration reactor exit set up, heat exchanger intercommunication compressed air storage tank, compressed air in the compressed air storage tank gets into harrow formula soot blower through the heat exchanger.
2. The cement industry SCR denitration low-resistance high-efficiency soot blower as claimed in claim 1, wherein the rake type soot blower comprises a soot blowing element, the soot blowing element is a soot blowing rake, the soot blowing rake comprises a main pipe and a plurality of rake pipes, the main pipe and the plurality of rake pipes are positioned in the denitration reactor, and the rake pipes are provided with a plurality of nozzles which can spray compressed air.
3. The cement industry SCR denitration low-resistance high-efficiency soot blower as claimed in claim 1, wherein a driving motor of the rake type soot blower is a variable frequency motor.
4. The cement industry SCR denitration low-resistance high-efficiency soot blower as claimed in claim 2, wherein the number of the rake type soot blower is several, the main pipes of the rake type soot blower are arranged in parallel, and the rake pipes of the rake type soot blower are arranged correspondingly.
5. The cement industry SCR denitration low-resistance high-efficiency soot blower as claimed in claim 2, wherein the compressed air consumption of the single rake type soot blower is 9.8 m3Min, the air source pressure of the compressed air is 0.6-0.8 MPa, and the temperature of the compressed air is 250-280 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120987124.9U CN214680971U (en) | 2021-05-10 | 2021-05-10 | SCR denitration low-resistance high-efficiency soot blower in cement industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120987124.9U CN214680971U (en) | 2021-05-10 | 2021-05-10 | SCR denitration low-resistance high-efficiency soot blower in cement industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214680971U true CN214680971U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120987124.9U Active CN214680971U (en) | 2021-05-10 | 2021-05-10 | SCR denitration low-resistance high-efficiency soot blower in cement industry |
Country Status (1)
| Country | Link |
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| CN (1) | CN214680971U (en) |
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2021
- 2021-05-10 CN CN202120987124.9U patent/CN214680971U/en active Active
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