CN117018833A - Method for neutralizing and treating waste gas of thermal power plant - Google Patents
Method for neutralizing and treating waste gas of thermal power plant Download PDFInfo
- Publication number
- CN117018833A CN117018833A CN202311031094.4A CN202311031094A CN117018833A CN 117018833 A CN117018833 A CN 117018833A CN 202311031094 A CN202311031094 A CN 202311031094A CN 117018833 A CN117018833 A CN 117018833A
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- waste gas
- treatment device
- fixedly connected
- device main
- gas treatment
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- 239000002912 waste gas Substances 0.000 title claims abstract description 172
- 238000000034 method Methods 0.000 title claims description 8
- 230000003472 neutralizing effect Effects 0.000 title claims description 6
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 70
- 239000007789 gas Substances 0.000 claims abstract description 57
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 26
- 238000000967 suction filtration Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 88
- 239000003795 chemical substances by application Substances 0.000 claims description 67
- 238000001914 filtration Methods 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 15
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000003517 fume Substances 0.000 claims description 9
- 239000002244 precipitate Substances 0.000 claims description 8
- 238000000889 atomisation Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010908 plant waste Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Biomedical Technology (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an exhaust gas neutralization device of a thermal power plant, which comprises an exhaust gas treatment device main body, wherein a pretreatment box is fixedly connected to the outer wall of one side of the exhaust gas treatment device main body, a suction filtration box is fixedly connected to the front surface of the exhaust gas treatment device main body, a first mounting box is fixedly connected to the front surface of the exhaust gas treatment device main body, a mounting seat is fixedly connected to the top of the exhaust gas treatment device main body, a filter tank is fixedly connected to the top of the mounting seat, a smoke exhaust pipe is fixedly connected to the outer wall of one side of the filter tank, and a sealing cover is slidably connected to the top of the filter tank. When the invention is used, the waste gas of the thermal power plant can be pretreated, so that the waste gas treatment device can treat the waste gas of the thermal power plant, and the pH value of the desulfurizing agent at the inner side of the main body of the waste gas treatment device can be detected on line, thereby avoiding that the desulfurizing agent at the inner side of the main body of the waste gas treatment device cannot effectively desulfurize the waste gas due to the too low content of the desulfurizing agent at the inner side of the main body of the waste gas treatment device.
Description
Technical Field
The invention relates to the technical field of power plant waste gas treatment, in particular to a thermal power plant waste gas neutralization treatment method.
Background
The flue gas of a coal-fired boiler of a thermal power plant is the most important pollution source in the power industry, the flue gas of the coal-fired power plant mainly comes from flue gas generated by boiler combustion, dust-containing waste gas generated by middle ash bin exhaust of a pneumatic ash conveying system and coal dust generated by coal yard, raw coal crushing and coal conveying, and the flue gas amount generated by boiler combustion and the pollutant emission amount contained in the flue gas are far greater than those of other waste gases, which are important points of pollution control. The pollutants in the flue gas generated by boiler combustion are fly ash, S02, NO, CO, C02, small amount of fluoride and chloride.
When the existing waste gas neutralization treatment device is used, waste gas of a thermal power plant is difficult to effectively pretreat, efficiency is low when the waste gas of the thermal power plant enters the waste gas neutralization treatment device for internal treatment, the content of desulfurizing agent in the waste gas neutralization treatment device is difficult to effectively monitor when the waste gas neutralization treatment device is used for treating the waste gas, and when the content of the desulfurizing agent in the waste gas neutralization treatment device is too low, the waste gas neutralization treatment device cannot effectively treat the waste gas.
Disclosure of Invention
The invention aims to provide a method for neutralizing and treating waste gas of a thermal power plant, which aims to solve the problems in the background technology.
In order to achieve the above object, the invention provides the following technical scheme, the waste gas neutralization device of the thermal power plant comprises a waste gas treatment device main body, a first filter screen is fixedly connected to the inner side wall of the waste gas treatment device main body, a feeding pipe is fixedly connected to one side outer wall of the waste gas treatment device main body, a water outlet pipe is fixedly connected to one side outer wall of the waste gas treatment device main body, valves are arranged on the outer walls of the feeding pipe and the water outlet pipe, a pH on-line detector is fixedly connected to the inner side of the first mounting box, a detection end of the pH on-line detector penetrates through the inner side of the waste gas treatment device main body, an alarm is fixedly connected to one side outer wall of the first mounting box, a pretreatment box is fixedly connected to one side outer wall of the waste gas treatment device main body, a gas pipe is fixedly connected to one side outer wall of the pretreatment box, a first connecting cover is slidingly connected to the top of the pretreatment box, a first connecting pipe is fixedly connected to the top of the first connecting cover, the top of the first connecting cover penetrates through the inside of the waste gas treatment device main body and is located below the first filter screen, a suction box is fixedly connected to the front side of the waste gas treatment device main body, a smoke filtering box is fixedly connected to the top of the first filter tank, and the top of the filter tank is fixedly connected to the top of the filter tank.
Preferably, the fixing bolt is installed in a threaded penetrating mode on the outer wall of one side of the pretreatment box, the bottom end of the fixing bolt abuts against the outer wall of the first connecting cover, the drain pipe is fixedly connected to the bottom of the pretreatment box, the third installation frame is connected to the inner side of the pretreatment box in a sliding mode, and the third filter screen is fixedly connected to the inner side wall of the third installation frame.
Preferably, the second mounting box is fixedly connected with the outer wall of the other side of the pretreatment box, a water pipe is installed in the inner side of the second mounting box in a penetrating mode, a first atomizing nozzle is fixedly connected with the bottom end of the water pipe, and the first atomizing nozzle penetrates the inner side of the pretreatment box.
Preferably, the inside wall fixedly connected with limit rail of suction filtration case, the inboard sliding connection of suction filtration case has the filter cartridge, the outer wall fixedly connected with stopper of filter cartridge, and stopper sliding connection is in limit rail's inboard, the inboard fixedly connected with second filter screen of filter cartridge, the outer wall of suction filtration case passes through bolt fixedly connected with access panel.
Preferably, the interior top fixedly connected with first water pump of suction filtration case, the water absorption end of first water pump passes through the top threaded connection of pipeline and filter cassette, and the drainage end of first water pump runs through the inboard in exhaust-gas treatment device main part and is located the top of first filter screen, the interior bottom fixedly connected with second water pump of suction filtration case, the water absorption end of second water pump runs through the inboard in exhaust-gas treatment device main part and is located the below of first filter screen, and the drainage end of second water pump passes through the bottom threaded connection of pipeline and filter cassette.
Preferably, the first mounting bracket of interior top fixedly connected with of mount pad, the inside fixedly connected with third water pump of first mounting bracket, and the end that absorbs water of third water pump is located the inside of exhaust-gas treatment device main part, the top fixedly connected with second connecting pipe of mount pad, the outer wall fixedly connected with second atomizer of second connecting pipe, and the drainage end of third water pump runs through the inboard at the connecting pipe.
Preferably, the top outer wall fixedly connected with supporting disk of filter canister, and the supporting disk is located the below of sealed lid, the top threaded connection of discharging fume the pipe has the second to connect the cover, the inboard sliding connection of discharging fume the pipe has the second mounting bracket, the inside of second mounting bracket is provided with active carbon filtration subassembly.
Preferably, the outer wall screw thread of sealed lid runs through and installs the binding bolt, the top fixedly connected with protection casing of sealed lid, the inboard fixedly connected with servo motor of protection casing, servo motor's output fixedly connected with support frame, and the support frame is located the inboard of exhaust treatment device main part, the outer wall fixedly connected with brush of support frame, the inside wall fixedly connected with stirring board of support frame.
Preferably, the neutralization method of the neutralization apparatus comprises the following steps:
s1, when waste gas of a thermal power plant is neutralized, an output pipeline of the waste gas of the thermal power plant is connected with a gas pipe, the waste gas of the thermal power plant is conveyed to the inner side of a pretreatment box through the gas pipe, dust and impurities in the waste gas are filtered through a third filter screen, and then the waste gas is connected with an external water pipe through the water pipe, so that external water is conveyed to a first atomization nozzle through the water pipe, the water is atomized and sprayed to the inner side of the pretreatment box through the first atomization nozzle, impurities in the waste gas at the inner side of the pretreatment box can be filtered again through water mist, and the waste gas can be cooled;
s2, conveying the treated waste gas into the waste gas treatment device main body, carrying out desulfurization treatment on the waste gas by using a desulfurizing agent in the waste gas treatment device main body, carrying out online detection on the pH value of the desulfurizing agent in the waste gas treatment device main body by using a pH online detector, and sending an alarm by using a controller to remind a worker to add the desulfurizing agent to the inner side of the waste gas treatment device main body when the pH value of the desulfurizing agent in the waste gas treatment device main body is too low;
s3, when the waste gas is desulfurized, the desulfurizing agent at the inner side of the main body of the waste gas treatment device can be conveyed to the inner side of the filter box during operation of the first water pump, sulfide precipitates can be filtered through the first filter screen in the filter box, after the desulfurizing agent is filtered, the desulfurizing agent at the inner side of the filter box can be conveyed to the inner side of the main body of the waste gas treatment device during operation of the second water pump, so that the desulfurizing agent in the main body of the waste gas treatment device can be kept in circulation, and the sulfide precipitates generated by neutralization of the waste gas can be filtered during circulation of the desulfurizing agent;
s4, waste gas after the waste gas treatment device main part filters gets into the inside of filtering the jar, can carry the inside of second connecting pipe with the inside desulfurizing agent of waste gas treatment device main part through the operation of third water pump, can carry the desulfurizing agent to the second atomizer through the second connecting pipe, spray out the desulfurizing agent atomizing through the second atomizer, thereby can carry out further processing to the inside waste gas of filtering the jar, the inside of the waste gas entering exhaust pipe after the processing filters through the inside active carbon filtration subassembly of the inside of second mounting bracket, thereby improve the efficiency of waste gas treatment, waste gas is when handling in the inside of filtering jar, start through servo motor, can drive the support frame and rotate in the inboard of waste gas treatment device main part when the support frame rotates, can clear up the inside wall of filtering jar when the brush rotates, can stir the inside air of filtering jar through the stirring board, thereby make waste gas and atomized desulfurizing agent fully contact, thereby improve the efficiency of waste gas treatment.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the pH value of the desulfurizing agent at the inner side of the main body of the waste gas treatment device can be detected on line through the pH on-line detector, and when the pH value of the desulfurizing agent at the inner side of the main body of the waste gas treatment device is too low, the controller can control the alarm to give an alarm, so that workers are reminded to add the desulfurizing agent to the inner side of the main body of the waste gas treatment device, and the problem that the desulfurizing agent at the inner side of the main body of the waste gas treatment device cannot effectively desulfurize waste gas due to the too low content of the desulfurizing agent at the inner side of the main body of the waste gas treatment device is avoided.
When the waste gas enters the inner side of the pretreatment tank, dust and impurities in the waste gas are filtered through the third filter screen, and then the waste gas is connected with an external water pipe through the water pipe, so that external water is conveyed to the first atomization nozzle through the water pipe, the water is atomized and sprayed to the inner side of the pretreatment tank through the first atomization nozzle, the impurities in the waste gas at the inner side of the pretreatment tank can be filtered again through the water mist, and the waste gas can be cooled, so that the waste gas treatment efficiency is improved.
According to the invention, the desulfurizing agent at the inner side of the main body of the waste gas treatment device can be conveyed to the inner side of the filter box when the first water pump is operated, the sulfide precipitate can be filtered through the first filter screen in the filter box, after the desulfurizing agent is filtered, the desulfurizing agent at the inner side of the filter box can be conveyed to the inner side of the main body of the waste gas treatment device when the second water pump is operated, so that the desulfurizing agent in the main body of the waste gas treatment device can keep flowing, and the sulfide precipitate generated by the neutralization of waste gas can be filtered when the desulfurizing agent flows, so that the sulfide precipitate at the inner side of the main body of the waste gas treatment device can be conveniently treated by workers.
According to the invention, the desulfurizing agent in the main body of the waste gas treatment device can be conveyed to the second connecting pipe through the third water pump, the desulfurizing agent can be conveyed to the second atomizing nozzle through the second connecting pipe, and the desulfurizing agent is atomized and sprayed out through the second atomizing nozzle, so that the waste gas in the filter tank can be further treated, the treated waste gas enters the inner side of the smoke exhaust pipe, and the waste gas entering the inner side of the smoke exhaust pipe is filtered through the active carbon filter assembly in the second mounting frame, so that the waste gas treatment efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a suction filtration mechanism according to the present invention;
FIG. 3 is a schematic diagram of a filter tank structure of the present invention;
FIG. 4 is a schematic view of the seal cap structure of the present invention;
FIG. 5 is a schematic cross-sectional view of a pretreatment mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of an exhaust gas treatment device according to the present invention;
FIG. 7 is a schematic cross-sectional view of a filter tank of the present invention;
fig. 8 is a schematic cross-sectional view of the seal cap of the present invention.
In the figure: 1. an exhaust gas treatment device main body; 2. a feed pipe; 3. a water outlet pipe; 4. a first filter screen; 5. a first mounting box; 6. a pH on-line detector; 7. an alarm; 8. a pretreatment box; 9. a first connection pipe; 10. a drain pipe; 11. a first connection cover; 12. a first connection pipe; 13. a fixing bolt; 14. a second mounting box; 15. a water pipe; 16. a first atomizer; 17. a suction filtration box; 18. a spacing guide rail; 19. a filter box; 20. a limiting block; 21. an access panel; 22. a first water pump; 23. a second water pump; 24. a second filter screen; 25. a mounting base; 26. a first mounting frame; 27. a third water pump; 28. a filter tank; 29. a second connection pipe; 30. a second atomizer; 31. a smoke exhaust pipe; 32. a second connection cover; 33. a second mounting frame; 34. an activated carbon filter assembly; 35. a support plate; 36. sealing cover; 37. a fastening bolt; 38. a protective cover; 39. a servo motor; 40. a support frame; 41. a brush; 42. a stirring plate; 101. a third mounting frame; 102. and a third filter screen.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., are directions or positional relationships based on the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 8, according to one embodiment of the present invention, a thermal power plant exhaust gas neutralization treatment device and a treatment method are provided:
including exhaust treatment device main part 1, the inside wall fixedly connected with first filter screen 4 of exhaust treatment device main part 1, one side outer wall fixedly connected with pretreatment tank 8 of exhaust treatment device main part 1, one side outer wall fixedly connected with gas-supply pipe 9 of pretreatment tank 8, the top sliding connection of pretreatment tank 8 has connecting cover 11, the top fixedly connected with first connecting pipe 12 of connecting cover 11, and the top of first connecting pipe 12 runs through the inside at exhaust treatment device main part 1 and is located the below of first filter screen 4, the positive fixedly connected with suction filtration case 17 of exhaust treatment device main part 1, the positive fixedly connected with first mounting box 5 of exhaust treatment device main part 1, and first mounting box 5 is located the top of suction filtration case 17, the top fixedly connected with mount pad 25 of exhaust treatment device main part 1, the top fixedly connected with filter tank 28 of mount pad 25, one side outer wall fixedly connected with exhaust pipe 31 of filter tank 28, the top sliding connection of filter tank 28 has sealed lid 36.
When carrying out neutralization treatment to thermal power factory waste gas, be connected thermal power factory waste gas's output pipeline and gas-supply pipe 9, thermal power factory waste gas carries to the inboard of pretreatment case 8 through gas-supply pipe 9, carry out preliminary treatment to waste gas through pretreatment case 8, the inside of waste gas treatment device main part 1 is carried to the waste gas after the processing, carry out desulfurization treatment to waste gas through the inside desulfurizing agent of waste gas treatment device main part 1, the waste gas after the processing passes the mount pad 25 and carries out the inboard of filter tank 28, further handle waste gas through filter tank 28, the exhaust pipe 31 discharge is passed through to the waste gas after the processing.
Wherein, one side outer wall fixedly connected with inlet pipe 2 of exhaust-gas treatment device main part 1, one side outer wall fixedly connected with outlet pipe 3 of exhaust-gas treatment device main part 1, the outer wall of inlet pipe 2 and outlet pipe 3 all is provided with the valve, the inboard fixedly connected with pH on-line measuring instrument 6 of first mounting box 5, and the detection end of pH on-line measuring instrument 6 runs through the inboard at exhaust-gas treatment device main part 1, one side outer wall fixedly connected with siren 7 of first mounting box 5.
Opening of the feeding pipe 2 and the water outlet pipe 3 can be controlled through the valve, desulfurizing agent can be added to the inner side of the main body 1 of the exhaust gas treatment device through the feeding pipe 2, waste water in the main body 1 of the treatment device can be discharged through the water outlet pipe 3, the outer wall of the first mounting box 5 is provided with a controller, the pH value of the desulfurizing agent in the main body 1 of the exhaust gas treatment device can be detected on line through the pH on-line detector 6, and when the pH value of the desulfurizing agent in the main body 1 of the exhaust gas treatment device is too low, the alarm 7 can be controlled through the controller to send out an alarm, so that workers are reminded of adding the desulfurizing agent to the inner side of the main body 1 of the exhaust gas treatment device, the content of the desulfurizing agent in the main body 1 of the exhaust gas treatment device is prevented from being too low, and the desulfurizing agent in the main body 1 of the exhaust gas treatment device can not effectively desulfurize the exhaust gas.
Wherein, the one side outer wall screw thread of pretreatment tank 8 runs through installs dead bolt 13, and the bottom of dead bolt 13 supports the outer wall at junction housing 11, the bottom fixedly connected with drain pipe 10 of pretreatment tank 8, the inboard sliding connection of pretreatment tank 8 has third mounting bracket 101, the inside wall fixedly connected with third filter screen 102 of third mounting bracket 101, the opposite side outer wall fixedly connected with second mounting box 14 of pretreatment tank 8, the inboard of second mounting box 14 runs through and installs raceway 15, the bottom fixedly connected with first atomizer 16 of raceway 15, and first atomizer 16 runs through the inboard at pretreatment tank 8.
When waste gas gets into the inboard of pretreatment tank 8, filter dust and impurity in the waste gas through third filter screen 102, rethread raceway 15 is connected with external water pipe to make external water carry to first atomizer 16 through raceway 15, spray water atomization to the inboard of pretreatment tank 8 through first atomizer 16, can carry out filtration once more to the impurity in the inboard waste gas of pretreatment tank 8 through the water smoke, and can cool down to the waste gas, thereby improve waste gas treatment's efficiency.
Wherein, the inside wall fixedly connected with spacing guide rail 18 of suction box 17, the inboard sliding connection of suction box 17 has filter box 19, the outer wall fixedly connected with stopper 20 of filter box 19, and stopper 20 sliding connection is in the inboard of spacing guide rail 18, the inboard fixedly connected with second filter screen 24 of filter box 19, the outer wall of suction box 17 passes through bolt fixedly connected with access panel 21, the interior top fixedly connected with first water pump 22 of suction box 17, the water-absorbing end of first water pump 22 passes through the top threaded connection of pipeline and filter box 19, and the drainage end of first water pump 22 runs through in the inboard of exhaust-gas treatment device main part 1 and is located the top of first filter screen 4, the interior bottom fixedly connected with second water pump 23 of suction box 17, the water-absorbing end of second water pump 23 runs through in the inboard of exhaust-gas treatment device main part 1 and is located the below of first filter screen 4, and the drainage end of second water pump 23 passes through pipeline and the bottom threaded connection of filter box 19.
Can carry the inboard desulfurizer of exhaust gas treatment device main part 1 to the inboard of filter box 19 when running through first water pump 22, can filter the sulphide deposit through the inside first filter screen 4 of filter box 19, after filtering the desulfurizer, through the operation of second water pump 23, the inside desulfurizer of filter box 19 can be carried to the inboard of exhaust gas treatment device main part 1 to the operation of second water pump 23, thereby make the inside desulfurizer of exhaust gas treatment device main part 1 keep circulating, and can filter the sulphide deposit that waste gas neutralization produced when the desulfurizer circulates, thereby the staff of being convenient for handles the sulphide deposit of exhaust gas treatment device main part 1 inboard, through stopper 20 sliding connection in the inboard of limiting guide 18, thereby guarantee the stability of filter box 19 in the suction filtration case 17 inboard, through dismantling access panel 21, thereby the staff of being convenient for handles the sulphide deposit of filter box 19 inside filterable.
Wherein, the interior top fixedly connected with first mounting bracket 26 of mount pad 25, the inside fixedly connected with third water pump 27 of first mounting bracket 26, and the end that absorbs water of third water pump 27 is located the inside of exhaust-gas treatment device main part 1, the top fixedly connected with second connecting pipe 29 of mount pad 25, the outer wall fixedly connected with second atomizer 30 of second connecting pipe 29, and the drainage end of third water pump 27 runs through the inboard at second connecting pipe 29, the top threaded connection of fume tube 31 has second connecting cover 32, the inboard sliding connection of fume tube 31 has second mounting bracket 33, the inside of second mounting bracket 33 is provided with active carbon filtration subassembly 34.
The inside that waste gas after the waste gas treatment device main part 1 filters gets into filtering jar 28 can carry the inside of second connecting pipe 29 with the inside desulfurizing agent of waste gas treatment device main part 1 through the operation of third water pump 27, can carry the desulfurizing agent to second atomizer 30 through second connecting pipe 29, atomize the blowout of desulfurizing agent through second atomizer 30, thereby can carry out further processing to the inside waste gas of filtering jar 28, the inboard of fume tube 31 is discharged in the waste gas entering after the processing, get into the inboard waste gas of fume tube 31 and filter through the inside active carbon filter assembly 34 of second mounting bracket 33, thereby improve waste gas treatment's efficiency, through dismantling second connecting cover 32, the rethread slides the second mounting bracket 33 and takes out, thereby the staff of being convenient for clears up active carbon filter assembly 34.
Wherein, the top outer wall fixedly connected with supporting disk 35 of filter jar 28, and supporting disk 35 is located the below of sealed lid 36, and the outer wall screw thread of sealed lid 36 runs through and installs binding bolt 37, the top fixedly connected with protection casing 38 of sealed lid 36, the inboard fixedly connected with servo motor 39 of protection casing 38, servo motor 39's output fixedly connected with support frame 40, and support frame 40 is located the inboard of exhaust treatment device main part 1, the outer wall fixedly connected with brush 41 of support frame 40, the inside wall fixedly connected with a plurality of stirring boards 42 of support frame 40.
When waste gas is handled in the filter tank 28, through servo motor 39 start, servo motor 39 can drive support frame 40 and rotate in the inboard of waste gas treatment device main part 1 when moving, can drive brush 41 and stirring board 42 and rotate when support frame 40 rotates, can clear up the inside wall of filter tank 28 when brush 41 rotates, can stir the inside air of filter tank 28 through stirring board 42, thereby make waste gas and the abundant contact of atomizing desulfurizing agent, thereby improve the efficiency of desulfurizing agent treatment waste gas, can support sealed lid 36 through supporting disk 35, through rotating fastening bolt 37, make the bottom of fastening bolt 37 support the top outer wall of filter tank 28, thereby guarantee the stability that sealed lid 36 is connected with filter tank 28, and make things convenient for the staff to install and dismantle sealed lid 36.
When the waste gas of the thermal power plant is neutralized, the output pipeline of the waste gas of the thermal power plant is connected with the gas pipe 9, the waste gas of the thermal power plant is conveyed to the inner side of the pretreatment box 8 through the gas pipe 9, dust and impurities in the waste gas are filtered through the third filter screen 102, and then the waste gas is connected with an external water pipe through the water pipe 15, so that external water is conveyed to the first atomizing nozzle 16 through the water pipe 15, the water is atomized and sprayed to the inner side of the pretreatment box 8 through the first atomizing nozzle 16, impurities in the waste gas at the inner side of the pretreatment box 8 can be filtered again through the water mist, the waste gas can be cooled, the waste gas after the treatment is conveyed to the inner side of the waste gas treatment device main body 1, the waste gas is desulfurized through a desulfurizing agent in the waste gas treatment device main body 1, and when the waste gas is desulfurized, the pH value of the desulfurizing agent inside the main body 1 of the exhaust gas treatment device can be detected on line through the pH on-line detector 6, when the pH value of the desulfurizing agent inside the main body 1 of the exhaust gas treatment device is too low, the controller can control the alarm 7 to give an alarm, thereby reminding workers to add the desulfurizing agent to the inner side of the main body 1 of the exhaust gas treatment device, when the desulfurizing treatment is carried out on the exhaust gas, the desulfurizing agent inside the main body 1 of the exhaust gas treatment device can be conveyed to the inner side of the filter box 19 through the first filter screen 4 inside the filter box 19 when the first water pump 22 is operated, the sulfide precipitate can be filtered through the first filter screen 4 inside the filter box 19, after the desulfurizing agent is filtered, the second water pump 23 is operated, the desulfurizing agent inside the filter box 19 can be conveyed to the inner side of the main body 1 of the exhaust gas treatment device, thereby keeping the desulfurizing agent inside the main body 1 of the exhaust gas treatment device in circulation, and can filter the sulphide deposit that waste gas neutralization produced when the desulfurizing agent circulate, waste gas after the waste gas treatment device main part 1 filters gets into the inside of filter tank 28, can carry the inside desulfurizing agent of waste gas treatment device main part 1 to the inside of second connecting pipe 29 through the operation of third water pump 27, can carry the desulfurizing agent to second atomizer 30 through second connecting pipe 29, atomize the blowout with the desulfurizing agent through second atomizer 30, thereby can carry out further processing to the inside waste gas of filter tank 28, the inside of exhaust pipe 31 is got into to the waste gas after the processing, get into the inside waste gas of exhaust pipe 31 and filter through the inside active carbon filtration subassembly 34 of the inside of second mounting bracket 33, thereby improve waste gas treatment's efficiency, when waste gas is handled in the inside of filter tank 28, start through servo motor 39, servo motor 39 can drive support frame 40 and rotate in the inside of waste gas treatment device main part 1 when support frame 40 rotates, can drive brush 41 and stirring plate 42 and can clear up the inside wall of filter tank 28 when 41 rotates, can stir the inside air of filter tank 28 through stirring plate 42, thereby make the inside air of filter tank 28 fully contact with the desulfurizing agent of the inside of exhaust gas, thereby improve the sufficient treatment efficiency of desulfurizing agent.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a thermal power factory waste gas neutralization device, includes exhaust treatment device main part (1), its characterized in that: the utility model discloses a waste gas treatment device, including waste gas treatment device main part (1), inside wall fixedly connected with first filter screen (4) of waste gas treatment device main part (1), one side outer wall fixedly connected with inlet pipe (2) of waste gas treatment device main part (1), one side outer wall fixedly connected with outlet pipe (3) of waste gas treatment device main part (1), the outer wall of inlet pipe (2) and outlet pipe (3) all is provided with the valve, the inboard fixedly connected with pH on-line measuring instrument (6) of first mounting box (5), and the detection end of pH on-line measuring instrument (6) runs through the inboard of waste gas treatment device main part (1), one side outer wall fixedly connected with siren (7) of first mounting box (5), one side outer wall fixedly connected with pretreatment tank (8) of waste gas treatment device main part (1), one side outer wall fixedly connected with gas-supply pipe (9) of pretreatment tank (8), the top sliding connection of pretreatment tank (8) has first connecting cover (11), the top fixedly connected with first connecting pipe (12), and the top of first connecting pipe (12) runs through the inboard of waste gas treatment device main part (1) in front of first filter screen (1), the front of first filter screen (17) is located in front of first filter screen (1), and first mounting box (5) are located the top of suction filtration case (17), the top fixedly connected with mount pad (25) of exhaust-gas treatment device main part (1), the top fixedly connected with filter tank (28) of mount pad (25), one side outer wall fixedly connected with of filter tank (28) is discharged fume tube (31), the top sliding connection of filter tank (28) has sealed lid (36).
2. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: one side outer wall screw thread of pretreatment tank (8) runs through installs dead bolt (13), and the bottom of dead bolt (13) supports the outer wall at first junction housing (11), the bottom fixedly connected with drain pipe (10) of pretreatment tank (8), the inboard sliding connection of pretreatment tank (8) has third mounting bracket (101), the inside wall fixedly connected with third filter screen (102) of third mounting bracket (101).
3. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the other side outer wall fixedly connected with second mounting box (14) of pretreatment tank (8), raceway (15) are installed in the inboard of second mounting box (14) run through, the bottom fixedly connected with first atomizer (16) of raceway (15), and first atomizer (16) run through in the inboard of pretreatment tank (8).
4. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the inside wall fixedly connected with spacing guide rail (18) of suction filtration case (17), the inboard sliding connection of suction filtration case (17) has filter cartridge (19), the outer wall fixedly connected with stopper (20) of filter cartridge (19), and stopper (20) sliding connection is in the inboard of spacing guide rail (18), the inboard fixedly connected with second filter screen (24) of filter cartridge (19), the outer wall of suction filtration case (17) is through bolt fixedly connected with access panel (21).
5. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the inside top fixedly connected with first water pump (22) of suction filtration case (17), the water absorption end of first water pump (22) passes through the top threaded connection of pipeline and filter box (19), and the drainage end of first water pump (22) runs through the top that is located first filter screen (4) in the inboard of exhaust-gas treatment device main part (1), the interior bottom fixedly connected with second water pump (23) of suction filtration case (17), the water absorption end of second water pump (23) runs through the below that is located first filter screen (4) in the inboard of exhaust-gas treatment device main part (1), and the drainage end of second water pump (23) passes through the bottom threaded connection of pipeline and filter box (19).
6. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the utility model discloses a waste gas treatment device, including installation seat (25), first mounting bracket (26) of interior top fixedly connected with of installation seat (25), the inside fixedly connected with third water pump (27) of first mounting bracket (26), and the end that absorbs water of third water pump (27) is located the inside of waste gas treatment device main part (1), the top fixedly connected with second connecting pipe (29) of installation seat (25), the outer wall fixedly connected with second atomizer (30) of second connecting pipe (29), and the drainage end of third water pump (27) runs through the inboard at second connecting pipe (29).
7. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the top outer wall fixedly connected with supporting disk (35) of filtration jar (28), and supporting disk (35) are located the below of sealed lid (36), the top threaded connection of discharging fume tub (31) has second connecting cover (32), the inboard sliding connection of discharging fume tub (31) has second mounting bracket (33), the inside of second mounting bracket (33) is provided with active carbon filtration subassembly (34).
8. The thermal power plant exhaust gas neutralization treatment device according to claim 1, wherein: the outer wall screw thread of sealed lid (36) runs through and installs binding bolt (37), the top fixedly connected with protection casing (38) of sealed lid (36), the inboard fixedly connected with servo motor (39) of protection casing (38), the output fixedly connected with support frame (40) of servo motor (39), and support frame (40) are located the inboard of exhaust treatment device main part (1), the outer wall fixedly connected with brush (41) of support frame (40), the inside wall fixedly connected with stirring board (42) of support frame (40).
9. The method for neutralizing exhaust gas of a thermal power plant according to any one of claims 1 to 8, characterized in that the neutralizing treatment method of the neutralizing treatment apparatus comprises the steps of:
s1, when waste gas of a thermal power plant is neutralized, an output pipeline of the waste gas of the thermal power plant is connected with a gas pipe (9), the waste gas of the thermal power plant is conveyed to the inner side of a pretreatment box (8) through the gas pipe (9), dust and impurities in the waste gas are filtered through a third filter screen (102), and then the waste gas is connected with an external water pipe through a water pipe (15), so that external water is conveyed to a first atomization nozzle (16) through the water pipe (15), the water is atomized and sprayed to the inner side of the pretreatment box (8) through the first atomization nozzle (16), the impurities in the waste gas at the inner side of the pretreatment box (8) can be filtered again through water mist, and the waste gas can be cooled;
s2, conveying the treated waste gas into the waste gas treatment device main body (1), carrying out desulfurization treatment on the waste gas by using a desulfurizing agent in the waste gas treatment device main body (1), carrying out online detection on the pH value of the desulfurizing agent in the waste gas treatment device main body (1) by using a pH online detector (6), and sending an alarm by using a controller to control an alarm (7) when the pH value of the desulfurizing agent in the waste gas treatment device main body (1) is too low so as to remind a worker to add the desulfurizing agent to the inner side of the waste gas treatment device main body (1);
s3, when the desulfurization treatment is carried out on the waste gas, the desulfurizing agent on the inner side of the waste gas treatment device main body (1) can be conveyed to the inner side of the filter box (19) through the first water pump (22), the sulfide precipitate can be filtered through the first filter screen (4) in the filter box (19), after the desulfurizing agent is filtered, the desulfurizing agent on the inner side of the filter box (19) can be conveyed to the inner side of the waste gas treatment device main body (1) through the second water pump (23), so that the desulfurizing agent in the waste gas treatment device main body (1) can be kept in circulation, and the sulfide precipitate generated by the neutralization of the waste gas can be filtered when the desulfurizing agent is circulated;
s4, inside that waste gas after waste gas treatment device main part (1) filtered gets into filtration jar (28), can carry the inside of second connecting pipe (29) with the inside desulfurizing agent of waste gas treatment device main part (1) through the operation of third water pump (27), can carry the desulfurizing agent to second atomizer (30) through second connecting pipe (29), atomizing blowout with the desulfurizing agent through second atomizer (30), thereby can carry out further processing to the inside waste gas of filtration jar (28), the inboard of exhaust pipe (31) is got into to waste gas after the processing, get into the inboard waste gas of exhaust pipe (31) and filter through the inside active carbon filtration subassembly (34) of second mounting bracket (33), thereby improve waste gas treatment' S efficiency, when the inside of filtration jar (28) is handled to waste gas, start through servo motor (39), can drive support frame (40) and rotate in the inboard of waste gas treatment device main part (1) when support frame (40) rotate, can drive brush (41) and stirring board (42), can carry out filtration jar (28) through stirring efficiency to the inside of filtration jar (42) when brush (41) rotates, thereby can fully clear up the inside stirring agent, thereby the filtration jar (42) is carried out to waste gas.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118687157A (en) * | 2024-08-26 | 2024-09-24 | 临沂兴源热力有限公司 | An environmentally friendly energy-saving boiler with flue gas recirculation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118687157A (en) * | 2024-08-26 | 2024-09-24 | 临沂兴源热力有限公司 | An environmentally friendly energy-saving boiler with flue gas recirculation |
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