CN212492319U - High-temperature flue gas desulfurization and denitrification dust removal system - Google Patents
High-temperature flue gas desulfurization and denitrification dust removal system Download PDFInfo
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- CN212492319U CN212492319U CN202020479790.7U CN202020479790U CN212492319U CN 212492319 U CN212492319 U CN 212492319U CN 202020479790 U CN202020479790 U CN 202020479790U CN 212492319 U CN212492319 U CN 212492319U
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Abstract
The utility model discloses a high temperature flue gas desulfurization denitration dust pelletizing system, comprising a boiler, boiler top fixedly connected with pipe, pipe terminal surface fixedly connected with cooler bin, cooler bin top fixedly connected with connecting pipe, connecting pipe terminal surface fixedly connected with water tank, the cooler bin lateral wall is close to bottom position fixedly connected with connecting pipe, and connecting pipe terminal surface fixedly connected with has a reaction box, reaction bin top fixedly connected with electron beam emitting device, the reaction bin lateral wall is provided with the dust collection box, and is connected through the connecting pipe between reaction box and the dust collection box. In the utility model, the process is a dry method, and no waste water and waste residue are generated; the desulfurization and denitrification can be simultaneously carried out, and the desulfurization rate of more than 90 percent and the denitrification rate of more than 80 percent can be achieved; the system is simple, the operation is convenient, and the process is easy to control; the method has better adaptability and load tracking performance for the flue gas with different sulfur contents and the change of the flue gas amount; the by-product is mixture of ammonium sulfate and ammonium nitrate, and can be used as fertilizer.
Description
Technical Field
The utility model relates to a high temperature flue gas desulfurization denitration dust removal field especially relates to a high temperature flue gas desulfurization denitration dust pelletizing system.
Background
The simultaneous desulfurization and denitration technology for flue gas is mostly in research and industrial demonstration stages, but because the simultaneous desulfurization and denitration can be realized in a set of system, particularly along with the continuous stricture of NOx control standards, the simultaneous desulfurization and denitration technology is increasingly emphasized by various countries. The simultaneous flue gas desulfurization and denitration technology mainly comprises three types, wherein the first type is a combined technology of flue gas desulfurization and flue gas denitration; the second type is that SOX and NOx are removed simultaneously by using an adsorbent; the third type is to modify the existing Flue Gas Desulfurization (FGD) system (such as adding a denitration agent into a desulfurization solution) and add a denitration function. The concentration of SOX and NOX in the flue gas of the boiler of the thermal power plant is not high, but the total amount is large. If two sets of devices are used for desulfurization and denitration respectively, the occupied area is large, and the investment, management and operation cost is high. In recent years, research and development of simultaneous desulfurization and denitrification technologies have been carried out in various countries in the world, particularly in industrially developed countries, and certain industrial applications have been carried out. According to statistics of American electric power research institutions, more than 60 new technologies for simultaneous desulfurization and denitrification exist, and in the SOX/NOX combined removal technology, some technologies adopt a combination technology of flue gas desulfurization and flue gas denitrification, and some technologies utilize an adsorbent to simultaneously remove SOX and NOX, so that higher removal efficiency can be achieved.
High temperature flue gas desulfurization denitration dust pelletizing system in the existing market, investment running cost is higher, has more waste material output, and the waste material is difficult for handling, needs to improve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a high-temperature flue gas desulfurization and denitrification dust removal system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high temperature flue gas desulfurization denitration dust pelletizing system, includes the boiler, boiler top fixedly connected with pipe, pipe terminal surface fixedly connected with cooler bin, cooler bin top fixedly connected with connecting pipe, connecting pipe terminal surface fixedly connected with water tank, the cooler bin lateral wall is close to bottom fixedly connected with connecting pipe, and connecting pipe terminal surface fixedly connected with has the reaction box, reaction bin top fixedly connected with electron beam emitter, the reaction bin lateral wall is provided with the dust collection box, and is connected through the connecting pipe between reaction box and the dust collection box, dust collection bin top fixedly connected with exhaust pipe, dust collection bin bottom fixedly connected with transmission pipe, transmission pipe bottom terminal surface fixedly connected with by-product bin.
As a further description of the above technical solution:
and the side wall of the cooling box is fixedly connected with a temperature monitoring meter.
As a further description of the above technical solution:
the electron beam emission device comprises a power supply, the side wall of the power supply is connected with an electric wire, the end face of the electric wire is fixedly connected with an electron accelerator, the end face of the electron accelerator is fixedly connected with a scanning coil, and the bottom of the scanning coil is fixedly connected with an irradiation window.
As a further description of the above technical solution:
the irradiation window is arranged in a transparent manner.
As a further description of the above technical solution:
the connecting pipe of water tank terminal surface runs through inside the cooler bin, and the connecting pipe is the gondola water faucet setting.
As a further description of the above technical solution:
the bottom of the reaction box is provided with an ammonia supply box, and the ammonia supply box is fixedly connected with the reaction box through a connecting pipe.
The utility model discloses following beneficial effect has:
1. the utility model discloses a flue gas suction in the direct boiler of pipe is inside the cooler bin, the flue gas is cooled off to water resources is supplied with to the rethread water tank, be provided with the temperature monitor meter at the lateral wall of cooler bin simultaneously, detect the inside temperature of cooler bin, through the inside temperature of negative feedback control cooler bin, promote the efficiency of SOx/NOx control, inject the flue gas into the reaction box again, supply the ammonia box to inject corresponding ammonia into the reaction box according to the stoichiometric number, in the reaction box, the flue gas is shone high energy electron beam, N2 in the flue gas, O2 and vapor etc. take place the radiation reaction, generate a large amount of ions, the free radical, the atom, electron and the atom of various excitation states, active material such as molecule, they oxidize SO2 and NOX in the flue gas into SO3 and NO2, these high-valent oxysulfide and nitrogen oxide react with vapor and generate vaporific sulphuric acid and nitric acid, these acids react with the ammonia of injecting into the reaction box in advance again, generating ammonium sulfate and ammonium nitrate, collecting gas sol-like ammonium sulfate and ammonium nitrate by using a dust collection box, discharging the purified flue gas through an exhaust gas pipe, and granulating the byproduct to be used as a chemical fertilizer for production in agricultural production areas.
2. The process of the utility model is a dry method, and does not produce waste water and waste residue; the desulfurization and denitrification can be simultaneously carried out, and the desulfurization rate of more than 90 percent and the denitrification rate of more than 80 percent can be achieved; the system is simple, the operation is convenient, and the process is easy to control; the method has better adaptability and load tracking performance for the flue gas with different sulfur contents and the change of the flue gas amount; the by-product is mixture of ammonium sulfate and ammonium nitrate, and can be used as fertilizer.
Drawings
FIG. 1 is a front view of a high temperature flue gas desulfurization, denitrification and dust removal system provided by the present invention;
fig. 2 is the utility model provides a high temperature flue gas desulfurization denitration dust pelletizing system electron beam emitter schematic structure.
Illustration of the drawings:
1. a boiler; 11. a conduit; 12. a cooling tank; 13. a temperature monitor; 14. a water tank; 15. a connecting pipe; 16. a reaction box; 17. an electron beam emitting device; 18. an ammonia supply tank; 2. a dust collection box; 21. an exhaust gas pipe; 22. a conveying pipe; 23. a byproduct storage tank; 3. a power source; 31. an electric wire; 32. an electron accelerator; 33. a scanning coil; 34. an illumination window.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, the present invention provides an embodiment:
the utility model provides a high temperature flue gas desulfurization denitration dust pelletizing system, including boiler 1, 1 top fixedly connected with pipe 11 of boiler, pipe 11 terminal surface fixedly connected with cooler bin 12, cooler bin 12 top fixedly connected with connecting pipe 15, 15 terminal surface fixedly connected with water tank 14 of connecting pipe, cooler bin 12 lateral wall is close to bottom fixedly connected with connecting pipe 15, and 15 terminal surface fixedly connected with of connecting pipe have reaction box 16, 16 top fixedly connected with electron beam emitter of reaction box 17, 16 lateral walls of reaction box are provided with dust collection box 2, and be connected through connecting pipe 15 between reaction box 16 and the dust collection box 2, 2 top fixedly connected with exhaust gas pipe 21 of dust collection box, 2 bottom fixedly connected with transmission pipes 22 of dust collection box, 22 bottom terminal surface fixedly connected with by-product bin 23 of transmission pipes.
12 lateral walls fixedly connected with temperature monitoring of cooler bin 13 detects the inside temperature of cooler bin 12, through the inside temperature of negative feedback control cooler bin 12, promotes SOx/NOx control's efficiency. The electron beam emitting device 17 comprises a power supply 3, the side wall of the power supply 3 is connected with an electric wire 31, the end face of the electric wire 31 is fixedly connected with an electron accelerator 32, the end face of the electron accelerator 32 is fixedly connected with a scanning coil 33, and the bottom of the scanning coil 33 is fixedly connected with an irradiation window 34. The illumination window 34 is transparent. Inside connecting pipe 15 of 14 terminal surfaces of water tank run through cooling tank 12, and connecting pipe 15 is the gondola water faucet setting, brought the facility for flue gas cooling. An ammonia supply tank 18 is arranged at the bottom of the reaction tank 16, and the ammonia supply tank 18 is fixedly connected with the reaction tank 16 through a connecting pipe 15.
The working principle is as follows: the flue gas in the boiler 1 is directly pumped into a cooling box 12 by a guide pipe 11, the flue gas is cooled by water resources supplied by a water box 14, meanwhile, a temperature monitor 13 is arranged on the side wall of the cooling box 12 to detect the temperature in the cooling box 12, the temperature in the cooling box 12 is controlled by negative feedback to improve the efficiency of desulfurization and denitrification, the flue gas is injected into a reaction box 16, an ammonia supply box 18 injects corresponding ammonia gas into the reaction box 16 according to stoichiometric number, the flue gas is irradiated by high-energy electron beams in the reaction box 16, N2, O2, water vapor and the like in the flue gas are subjected to radiation reaction to generate a large amount of ions, free radicals, atoms, electrons and active substances such as atoms, molecules and the like in various excitation states, the ions, the free radicals, the atoms, the electrons and the active substances such as various excited states are oxidized into SO3 and NO2 by SO2 and NOX in the flue gas, and the high-valence oxysulfide and, the acid reacts with ammonia injected into the reaction box 16 in advance to generate ammonium sulfate and ammonium nitrate, finally the dust collection box 2 collects gas sol-like ammonium sulfate and ammonium nitrate, the purified flue gas is discharged through an exhaust gas pipe 21, and the byproduct can be used as a chemical fertilizer after being granulated and used for production in an agricultural production area, wherein the process is a dry method without generating waste water and waste residues; the desulfurization and denitrification can be simultaneously carried out, and the desulfurization rate of more than 90 percent and the denitrification rate of more than 80 percent can be achieved; the system is simple, the operation is convenient, and the process is easy to control; the method has better adaptability and load tracking performance for the flue gas with different sulfur contents and the change of the flue gas amount; the by-product is mixture of ammonium sulfate and ammonium nitrate, and can be used as fertilizer.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a high temperature flue gas desulfurization denitration dust pelletizing system, includes boiler (1), its characterized in that: the top of the boiler (1) is fixedly connected with a guide pipe (11), the end surface of the guide pipe (11) is fixedly connected with a cooling box (12), the top of the cooling box (12) is fixedly connected with a connecting pipe (15), the end face of the connecting pipe (15) is fixedly connected with a water tank (14), the side wall of the cooling box (12) is fixedly connected with a connecting pipe (15) near the bottom, the end face of the connecting pipe (15) is fixedly connected with a reaction box (16), the top of the reaction box (16) is fixedly connected with an electronic beam emitting device (17), the side wall of the reaction box (16) is provided with a dust collection box (2), the reaction box (16) is connected with the dust collection box (2) through a connecting pipe (15), the top of the dust collection box (2) is fixedly connected with an exhaust gas pipe (21), the bottom of the dust collection box (2) is fixedly connected with a transmission pipe (22), the end face of the bottom of the conveying pipe (22) is fixedly connected with a byproduct storage box (23).
2. The high-temperature flue gas desulfurization, denitrification and dust removal system of claim 1, which is characterized in that: and the side wall of the cooling box (12) is fixedly connected with a temperature monitoring meter (13).
3. The high-temperature flue gas desulfurization, denitrification and dust removal system of claim 1, which is characterized in that: electron beam emitter (17) include power (3), power (3) lateral wall is connected with electric wire (31), electric wire (31) terminal surface fixedly connected with electron accelerator (32), electron accelerator (32) terminal surface fixedly connected with scanning coil (33), scanning coil (33) bottom fixedly connected with irradiation window (34).
4. The high-temperature flue gas desulfurization, denitrification and dust removal system of claim 3, wherein: the irradiation window (34) is transparent.
5. The high-temperature flue gas desulfurization, denitrification and dust removal system of claim 1, which is characterized in that: connecting pipe (15) of water tank (14) terminal surface run through inside cooling tank (12), and connecting pipe (15) are the gondola water faucet setting.
6. The high-temperature flue gas desulfurization, denitrification and dust removal system of claim 1, which is characterized in that: an ammonia supply tank (18) is arranged at the bottom of the reaction tank (16), and the ammonia supply tank (18) is fixedly connected with the reaction tank (16) through a connecting pipe (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020479790.7U CN212492319U (en) | 2020-04-03 | 2020-04-03 | High-temperature flue gas desulfurization and denitrification dust removal system |
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| CN202020479790.7U CN212492319U (en) | 2020-04-03 | 2020-04-03 | High-temperature flue gas desulfurization and denitrification dust removal system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457398A (en) * | 2021-06-28 | 2021-10-01 | 徐四保 | Multistage recyclable chemical flue gas desulfurization and denitrification equipment |
| CN114345100A (en) * | 2022-01-10 | 2022-04-15 | 江西联达金砂湾冶金有限公司 | Flue gas desulfurization and denitrification device with harmful substance detection function |
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2020
- 2020-04-03 CN CN202020479790.7U patent/CN212492319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457398A (en) * | 2021-06-28 | 2021-10-01 | 徐四保 | Multistage recyclable chemical flue gas desulfurization and denitrification equipment |
| CN114345100A (en) * | 2022-01-10 | 2022-04-15 | 江西联达金砂湾冶金有限公司 | Flue gas desulfurization and denitrification device with harmful substance detection function |
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