CN111603935A - SCR soot blowing platform of environmental protection equipment - Google Patents
SCR soot blowing platform of environmental protection equipment Download PDFInfo
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- CN111603935A CN111603935A CN202010632271.4A CN202010632271A CN111603935A CN 111603935 A CN111603935 A CN 111603935A CN 202010632271 A CN202010632271 A CN 202010632271A CN 111603935 A CN111603935 A CN 111603935A
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- reactor
- catalyst
- soot blowing
- environmental protection
- blowing platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention provides an SCR soot blowing platform of environmental protection equipment, which relates to the field of soot blowing devices and comprises a reactor and a catalyst, wherein a round supporting plate is arranged at the upper end of the catalyst, the periphery of the round supporting plate is arranged on the reactor through a bracket, an annular air pipe is arranged on the lower end surface of the round supporting plate, a nozzle is arranged on the annular air pipe, an air collecting bin is arranged at the upper end of the round supporting plate, a branch air pipe is arranged at the upper end of the air collecting bin, a heating guide pipe is arranged in the reactor and is close to the lower end of the reactor, one end of the heating guide pipe is connected with a compressed air storage tank, the upper surface of the catalyst can be subjected to soot blowing treatment by arranging the nozzle on the annular air pipe, the accumulation of dust on the surface of the catalyst is prevented, the dust on the catalyst can be cleaned for the second time, the denitration efficiency is improved, the operation cost is saved, and the practicability is high.
Description
Technical Field
The invention relates to the field of soot blowing devices, in particular to an SCR soot blowing platform of an environment-friendly device.
Background
At present, a Selective Catalytic Reduction (SCR) denitration technology is the denitration technology with highest denitration efficiency and the greatest market prospect, and is the first choice for efficiently controlling NOx emission in various industries in China and even internationally. The catalyst is used as a core material of the SCR denitration technology and becomes a direct factor for restricting catalytic reaction. However, when flue gas containing high-concentration and high-viscosity dust passes through the catalyst, it is very easy to agglomerate on the surface thereof, forming bridges and blockages, thereby causing catalyst poisoning, greatly reducing denitration efficiency. In order to prevent the catalyst layer from accumulating dust and improve the denitration efficiency, a dust blowing device is required to be arranged above each layer of catalyst.
However, the glass industry is different from coal-fired power plants, and the glass kiln generally adopts inferior fuels, and the raw materials contain a large amount of mirabilite, sodium carbonate and the like, so the flue gas has the characteristics of high content of alkali (Na + salt, CaO and the like), strong adhesion, high corrosivity and the like. Engineering practice proves that the traditional soot blowing modes (such as acoustic soot blowing, steam soot blowing and the like) have low soot blowing strength on the flue gas, small action and insufficient NOx treatment capacity, so that the consumption of ammonia water is increased, the emission index of pollutants is larger, and the stability is extremely poor.
Disclosure of Invention
The invention aims to provide an SCR soot blowing platform of an environment-friendly device to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme: an SCR soot blowing platform of environmental protection equipment comprises a reactor and catalysts, wherein the catalysts are arranged in two groups, the catalysts are horizontally arranged in the reactor through a fixing frame, a circular supporting plate is arranged at the upper end of the catalysts, the periphery of the circular supporting plate is fixedly arranged on the inner wall of the reactor through a bracket, annular air pipes are arranged on the lower end surface of the circular supporting plate from inside to outside along the position of the circle center, nozzles are uniformly and vertically arranged on each annular air pipe downwards, a gas collecting bin is arranged at the upper end of the circular supporting plate and communicated with each annular air pipe, branch air pipes are arranged at the upper end of the gas collecting bin, the tail ends of the branch air pipes are communicated through a main air pipe, a heating conduit is arranged in the reactor close to the lower end, one end of the heating conduit is connected with the main air pipe, and the other end of the heating conduit, the intake pipe is close to the position of compressed air storage tank and installs first gate valve, the bronchus is close to main tracheal position and installs the second gate valve, two cleaning device is installed to the below of circular backup pad.
Preferably, the reactor is a cylindrical cavity structure.
Preferably, the annular air pipes are uniformly distributed on the lower end face of the circular support plate at equal intervals.
Preferably, the cleaning device comprises a supporting rod, one end of the supporting rod is rotatably installed at the center of the lower end of the circular supporting plate through a rotating shaft, the cleaning brush is installed at the lower side of the supporting rod, the driving motor is installed at the upper end of the circular supporting plate, and the output end of the driving motor is fixedly connected with the input end of the rotating shaft.
Preferably, the length of the sweeping brush is equal to the radius of the upper surface of the catalyst.
Preferably, a control switch for driving the motor is mounted on the outer side wall of the reactor.
Preferably, the heating conduit is spirally wound around the inner wall of the lower end of the reactor.
The invention has the beneficial effects that:
in the invention, the annular air pipe is fixed through the arrangement of the circular support plate, meanwhile, the upper surface of the catalyst can be subjected to soot blowing treatment through arranging the nozzle on the annular air pipe, dust is prevented from being accumulated on the surface of the catalyst, the air flow sprayed out from the nozzle is more stable through arranging the gas collecting bin and the annular air pipe, the air flow can be preheated through arranging the heating guide pipe, the catalytic efficiency of the catalyst is not influenced while the heat in the reactor is utilized, the compressed air storage tank is arranged, strong air flow can be provided for the whole soot blowing system, the soot blowing process is ensured to be normally carried out, the dust on the catalyst can be cleaned for the second time through arranging the cleaning device, the upper surface of the catalyst is ensured not to be covered by dust, the whole invention can prolong the replacement period of the catalyst, improve the denitration efficiency and save the operation cost, the practicability is high.
Drawings
FIG. 1 is a schematic structural diagram of an SCR soot blowing platform of an environmental protection device according to the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic diagram of a circular support plate structure according to the present invention;
FIG. 4 is a schematic view of the annular air duct arrangement of the present invention;
FIG. 5 is a schematic view of the cleaning apparatus of the present invention;
reference numerals: 1. a reactor; 2. a catalyst; 3. a fixed mount; 4. a circular support plate; 5. an annular air pipe; 6. a nozzle; 7. a gas collecting bin; 8. a bronchus; 9. a main air pipe; 10. heating the conduit; 11. an air inlet pipe; 12. a compressed air storage tank; 13. a first gate valve; 14. a second gate valve; 15. a cleaning device; 1501. a support bar; 1502. a rotating shaft; 1503. cleaning with a brush; 1504. the motor is driven.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, an SCR soot blowing platform of an environmental protection device comprises a reactor 1 and catalysts 2, wherein the catalysts 2 are arranged in two groups, and are horizontally installed inside the reactor 1 through a fixing frame 3, a circular support plate 4 is arranged at the upper end of the catalysts 2, the periphery of the circular support plate 4 is fixedly installed on the inner wall of the reactor 1 through a bracket, annular gas pipes 5 are arranged on the lower end surface of the circular support plate 4 from inside to outside along the circle center position, nozzles 6 are vertically and uniformly arranged on each annular gas pipe 5, a gas collection bin 7 is arranged at the upper end of the circular support plate 4, the gas collection bin 7 is communicated with each annular gas pipe 5, a branch gas pipe 8 is arranged at the upper end of the gas collection bin 7, the tail ends of the branch gas pipes 8 are communicated through a main gas pipe 9, a heating conduit 10 is arranged at a position close to the lower end inside of the, the other end is connected with a compressed air storage tank 12 through an air inlet pipe 11, a first gate valve 13 is installed at the position, close to the compressed air storage tank 12, of the air inlet pipe 11, a second gate valve 14 is installed at the position, close to the main air pipe 9, of the branch air pipe 8, and a cleaning device 15 is installed below the two circular supporting plates 4.
The working principle is as follows:
in the course of the work, open first gate valve 13, release compressed air through compressed air storage tank 12, compressed air enters into heating pipe 10 through intake pipe 11, smoke in through reactor 1 heats in advance, avoid microthermal gas to reduce catalyst 2's catalytic performance, after compressed air is heated, evenly reach two bronchus 8 through main trachea 9 on, open second gate valve 14 on the bronchus 8, then reach gas collection storehouse 7, guarantee the stability of air supply, final gas reaches different annular trachea 5, annular trachea 5's setting, the stability of air current has further been increased, gas in the final annular trachea 5 is spout from nozzle 6, blow perpendicularly and energetically at catalyst 2's upper surface, blow into the reactor bottom with the deposition on the catalyst unit, effectively prevent catalyst layer deposition, the efficiency of denitration is improved.
Example 2
As shown in fig. 1-5, an SCR soot blowing platform of an environmental protection device comprises a reactor 1 and catalysts 2, wherein the catalysts 2 are arranged in two groups, and are horizontally installed inside the reactor 1 through a fixing frame 3, a circular support plate 4 is arranged at the upper end of the catalysts 2, the periphery of the circular support plate 4 is fixedly installed on the inner wall of the reactor 1 through a bracket, annular gas pipes 5 are arranged on the lower end surface of the circular support plate 4 from inside to outside along the circle center position, nozzles 6 are vertically and uniformly arranged on each annular gas pipe 5, a gas collection bin 7 is arranged at the upper end of the circular support plate 4, the gas collection bin 7 is communicated with each annular gas pipe 5, a branch gas pipe 8 is arranged at the upper end of the gas collection bin 7, the tail ends of the branch gas pipes 8 are communicated through a main gas pipe 9, a heating conduit 10 is arranged at a position close to the lower end inside of the, the other end is connected with a compressed air storage tank 12 through an air inlet pipe 11, a first gate valve 13 is installed at the position, close to the compressed air storage tank 12, of the air inlet pipe 11, a second gate valve 14 is installed at the position, close to the main air pipe 9, of the branch air pipe 8, and a cleaning device 15 is installed below the two circular supporting plates 4.
The cleaning device 15 comprises a support rod 1501, one end of the support rod 1501 is rotatably installed at the center of the lower end of the circular support plate 4 through a rotating shaft 1502, a cleaning brush 1503 is installed at the lower side of the support rod 1501, a driving motor 1504 is installed at the upper end of the circular support plate 4, and the output end of the driving motor 1504 is fixedly connected with the input end of the rotating shaft 1502.
The working principle is as follows: when 6 gas jets of nozzle are blown the ash to catalyst 2, cleaning device 15 is regularly cleaned the upper surface of catalyst 2, it does not blow away to prevent to blow the ash in-process and have a small amount of dust, when nozzle 6 stops gas jetting, open driving motor 1504, make driving motor 1504 drive axis of rotation 1502 and rotate, axis of rotation 1502 drives bracing piece 1501 and is circular motion around axis of rotation 1502 in the top of catalyst 2, and cleaning brush 1503 goes on at catalyst 2's surface always, make catalyst 2 not cleaned once more by the dust that blows away on the surface, prevent long-term piling up, cause not good influence to catalytic effect.
Meanwhile, the whole cleaning device 15 can work simultaneously with the nozzle 6, and when the driving motor 1504 drives the supporting rod 1501 to rotate around the rotating shaft 1502 and passes through the air-jet nozzle 6, the air flow can be cut off, so that the vertically ejected air flow becomes the air flow blown out towards all directions, the air flow related range is wider, the cleaning of the upper surface of the catalyst 2 is more thorough, and the effect is better.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an environmental protection equipment SCR soot blowing platform, includes reactor (1) and catalyst (2), its characterized in that:
the catalyst (2) is provided with two groups, the catalyst is horizontally arranged in the reactor (1) through a fixing frame (3), a circular support plate (4) is arranged at the upper end of the catalyst (2), the periphery of the circular support plate (4) is fixedly arranged on the inner wall of the reactor (1) through a support, annular air pipes (5) are arranged on the lower end face of the circular support plate (4) from inside to outside along the circle center position, nozzles (6) are vertically and downwards uniformly arranged on each annular air pipe (5), an air collecting bin (7) is arranged at the upper end of the circular support plate (4), the air collecting bin (7) is communicated with each annular air pipe (5), a branch air pipe (8) is arranged at the upper end of the air collecting bin (7), the tail ends of the branch air pipes (8) are communicated through a main air pipe (9), and a heating catheter (10) is arranged in the reactor (1) close to the lower end, heating pipe (10) one end with main trachea (9) are connected, and the other end is connected with compressed air storage tank (12) through intake pipe (11), first gate valve (13) are installed to the position that intake pipe (11) are close to compressed air storage tank (12), second gate valve (14), two are installed to the position that bronchus (8) are close to main trachea (9) cleaning device (15) are installed to the below of circular backup pad (4).
2. The SCR soot blowing platform of the environmental protection device as recited in claim 1, wherein: the reactor (1) is of a cylindrical cavity structure.
3. The SCR soot blowing platform of the environmental protection device as recited in claim 1, wherein: the annular air pipes (5) are uniformly distributed on the lower end face of the circular support plate (4) at equal intervals.
4. The SCR soot blowing platform of the environmental protection device as recited in claim 1, wherein: the cleaning device (15) comprises a supporting rod (1501), one end of the supporting rod (1501) is rotatably installed at the center of the lower end of a circular supporting plate (4) through a rotating shaft (1502), a cleaning brush (1503) is installed on the lower side of the supporting rod (1501), a driving motor (1504) is installed at the upper end of the circular supporting plate (4), and the output end of the driving motor (1504) is fixedly connected with the input end of the rotating shaft (1502).
5. The SCR soot blowing platform of the environmental protection device as recited in claim 1, wherein: the length of the sweeping brush (1503) is equal to the radius of the upper surface of the catalyst (2).
6. The SCR soot blowing platform of the environmental protection device as recited in claim 4, wherein: the outer side wall of the reactor (1) is provided with a control switch for driving a motor (1504).
7. The SCR soot blowing platform of the environmental protection device as recited in claim 1, wherein: the heating conduit (10) is spirally wound on the inner wall of the lower end of the reactor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632271.4A CN111603935A (en) | 2020-07-03 | 2020-07-03 | SCR soot blowing platform of environmental protection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632271.4A CN111603935A (en) | 2020-07-03 | 2020-07-03 | SCR soot blowing platform of environmental protection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111603935A true CN111603935A (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010632271.4A Pending CN111603935A (en) | 2020-07-03 | 2020-07-03 | SCR soot blowing platform of environmental protection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069920A (en) * | 2021-05-08 | 2021-07-06 | 中材萍乡水泥有限公司 | Cement manufacture ultralow emission denitration device |
| CN116272354A (en) * | 2023-03-20 | 2023-06-23 | 广东顺控环境投资有限公司 | Smoke denitration device of garbage incineration power generation furnace |
-
2020
- 2020-07-03 CN CN202010632271.4A patent/CN111603935A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069920A (en) * | 2021-05-08 | 2021-07-06 | 中材萍乡水泥有限公司 | Cement manufacture ultralow emission denitration device |
| CN116272354A (en) * | 2023-03-20 | 2023-06-23 | 广东顺控环境投资有限公司 | Smoke denitration device of garbage incineration power generation furnace |
| CN116272354B (en) * | 2023-03-20 | 2023-10-20 | 广东顺控环境投资有限公司 | Smoke denitration device of garbage incineration power generation furnace |
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