CN220443493U - A processing apparatus for dioxin in msw incineration flue gas - Google Patents
A processing apparatus for dioxin in msw incineration flue gas Download PDFInfo
- Publication number
- CN220443493U CN220443493U CN202321462531.3U CN202321462531U CN220443493U CN 220443493 U CN220443493 U CN 220443493U CN 202321462531 U CN202321462531 U CN 202321462531U CN 220443493 U CN220443493 U CN 220443493U
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- CN
- China
- Prior art keywords
- flue gas
- material agent
- dioxin
- removal tower
- bin
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000003546 flue gas Substances 0.000 title claims abstract description 58
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 90
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 78
- 239000010881 fly ash Substances 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 21
- 238000004056 waste incineration Methods 0.000 claims abstract description 18
- 238000004898 kneading Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 11
- 231100000719 pollutant Toxicity 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000010813 municipal solid waste Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a treatment device for dioxin in waste incineration flue gas, which comprises a fly ash storage bin, a kneading box, a material agent forming tank, a wet material agent storage bin and a radial removal tower which are sequentially and fixedly connected from top to bottom, wherein the kneading box is provided with a stirring device and an atomization spray head, one side of the bottom of the material agent forming tank is connected with the top side of a heat exchange box, an extruder arranged at the bottom of the material agent forming tank penetrates through the connecting side and is in through connection with the top of the wet material agent storage bin arranged in the heat exchange box, and the bottom of the heat exchange box is fixedly connected with the top of the radial removal tower; and the heat exchange box and the radial removal tower are both provided with a flue gas outlet and a flue gas inlet. The utility model solves the problems that the traditional material agent forming device and the pollutant removing device are separately and independently arranged and cannot be continuously treated, has low operation cost and simple and convenient operation, treats waste with waste, solves the problem of flue gas pollution and realizes the recycling of solid waste.
Description
Technical Field
The utility model belongs to the technical field of environmental protection equipment, and particularly relates to a treatment device for dioxin in waste incineration flue gas.
Background
Dioxin is one of the most toxic compounds found at present, has great harm to human bodies, and can cause diseases such as cancers after long-term contact. Textile fabrics, papers, PVC, lead-containing gasoline, coal, wood after preservative treatment, petroleum products, medical wastes and the like in the garbage can easily generate dioxin when burning. Along with the enhancement of environmental awareness, the problem of dioxin in the waste incineration flue gas is also more and more concerned about the problem of general world, and the discharge standard of the related waste incineration dioxin is continuously released from each country, so that the discharge amount of the dioxin is controlled.
The fly ash is one of main solid wastes of the coal-fired power plant, and the production amount is large. At present, in order to save energy, garbage can be burned sometimes to serve as auxiliary energy, dioxin generated during garbage incineration is difficult to treat in the existing coal-fired power plant equipment, and the following problems exist: 1) The fly ash has larger specific surface area, finer granularity and more alkaline substances and residual carbon particles; 2) The traditional material agent forming device and the pollutant removing device are generally arranged separately and independently, and the material agent after being formed is stored in a storage bin and is intermittently put into the pollutant removing device according to the situation for use. The patent of publication number CN106705064A discloses an utility model patent application of a treatment method for reducing dioxin in household garbage incineration flue gas, and the adopted treatment system comprises: a garbage receiving chamber and a garbage storage chamber; a staged combustion grate furnace provided with a main combustion zone and a secondary combustion zone, an odor inlet and a garbage inlet; the waste heat power generation boiler comprises a waste heat power generation boiler body, a first bag type dust collector, an SCR reactor inlet, an air preheater and an inlet at the lower part of a deacidification and defogging tower of a second bag type dust collector; deacidification demisting towers and the like have complex process, numerous and miscellaneous equipment, large investment and occupied area, more energy consumption and higher operation cost.
Disclosure of Invention
Aiming at the problems, the utility model provides a processing device for dioxin in waste incineration flue gas, which is characterized in that a forming device and a pollutant removing device are reasonably arranged and laid to form a whole device capable of continuously processing, the whole device is vertically arranged, the processed materials descend layer by gravity, and the problems that the traditional material agent forming device and the pollutant removing device are separately and independently arranged, and the fly ash material agent is stored in a storage bin after being formed and is intermittently put into the pollutant removing device for use are solved.
The utility model is realized by the following steps: the device comprises a fly ash storage bin, a kneading box, a material forming tank, a wet material storage bin and a radial removal tower which are sequentially and fixedly connected from top to bottom, wherein the kneading box is provided with a stirring device and an atomization spray head, one side of the bottom of the material forming tank is connected with the top side of a heat exchange box, an extruder arranged at the bottom of the material forming tank penetrates through the connecting side and is in through connection with the top of the wet material storage bin arranged in the heat exchange box, and the bottom of the heat exchange box is fixedly connected with the top of the radial removal tower; and the heat exchange box and the radial removal tower are both provided with a flue gas outlet and a flue gas inlet.
Further, the extruder is a screw press.
Furthermore, a dry material agent bin matched with the wet material agent bin is arranged in the radial removal tower, porous plate structures are arranged on two side bin walls of the dry material agent bin, the dry material agent is filled in the middle of the dry material agent bin, and a sandwich structure with an adsorption function and the dry material agent in the middle of the sandwich structure is formed.
Further, the top of the dry material agent bin is fixedly connected with the bottom of the wet material agent bin in a matching mode, and a first plug valve is arranged between the top of the dry material agent bin and the bottom of the wet material agent bin.
Further, a first flue gas inlet is formed in one side of the heat exchange box, and the entered flue gas passes through the wet material agent storage bin and is discharged from a first flue gas outlet on the opposite side.
Further, a smoke second inlet is formed in one side of the radial removal tower, after entering the radial removal tower, smoke passes through the dry material agent bin to be purified, purified smoke is discharged from a smoke second outlet of the radial removal tower, and the smoke second inlet is connected with a smoke first outlet through a pipeline.
Further, a second plug valve is arranged at the connecting part of the kneading box and the material agent forming tank.
Further, the atomizing nozzle is provided with a plurality of atomizing nozzles which are uniformly distributed on the upper part of the inner wall of the kneading box.
Further, the bottom of the radial removal tower is provided with a dry material agent discharge outlet.
Further, the material agent forming tank and the radial removing tower are respectively and fixedly arranged on the floor through the supporting device.
The beneficial effects of the utility model are as follows: 1) The problems that a traditional material agent forming device and a pollutant removing device are separately and independently arranged, and the fly ash material agent is stored in a storage bin after being formed and is intermittently put into the pollutant removing device for use are solved; 2) The device is vertically arranged as a whole, and materials descend layer by gravity, so that the occupied area is saved, and the energy consumption for conveying the materials is also saved; 3) Compared with the conventional axial removal tower, the radial removal tower has smaller running resistance; 4) The solid waste-fly ash of the power plant is used as the main raw material for adsorbing dioxin, the operation cost is extremely low, the operation is simple and convenient, the waste is treated by waste, the problem of flue gas pollution is solved, and the recycling utilization of the solid waste is realized; 5) The wet material agent is heated by the self heat of the waste incineration flue gas, so that the heating energy problem is solved, and the physical adsorption of the fly ash material agent to pollutants such as dioxin is facilitated after the flue gas is cooled; 6) The fly ash has larger specific surface area and developed pore structure after molding, so that the device can be used for adsorbing dioxin in waste incineration flue gas, can also adsorb pollutants such as sulfur dioxide, chloride and nitrogen oxide, and has wide application prospect.
The utility model is further explained below with reference to the drawings.
Drawings
FIG. 1 is a schematic diagram of a connection structure according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a radial stripping column according to the present utility model.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Embodiment one:
the embodiment is a treatment device for dioxin in waste incineration flue gas, as shown in fig. 1 and 2, the device comprises a fly ash storage bin 1, a kneading box 2, a material agent forming tank 7, a wet material agent storage bin 10 and a radial removal tower 12 which are sequentially and fixedly connected from top to bottom, wherein the kneading box 2 is provided with a stirring device 4 and an atomizing nozzle 3, one side of the bottom of the material agent forming tank 7 is connected with the top side of a heat exchange box 9, an extruder 8 arranged at the bottom of the material agent forming tank 7 penetrates through the connection side and is in through connection with the top of the wet material agent storage bin 10 arranged in the heat exchange box 9, and the bottom of the heat exchange box 9 is fixedly connected with the top of the radial removal tower 12; the heat exchange box 9 and the radial removal tower 12 are both provided with a flue gas outlet and a flue gas inlet.
Embodiment two:
the embodiment is an improvement of the embodiment, and relates to refinement of an extruder, the extruder 8 is a screw extruder press, the fly ash has a larger specific surface area, and after being molded by the screw extruder, the fly ash has a developed pore structure, so that the fly ash can adsorb dioxin and pollutants such as sulfur dioxide, chloride, nitrogen oxides and the like.
Embodiment III:
the first embodiment is an improvement of the first embodiment, and relates to refinement of the radial removal tower 12, in this embodiment, a dry material agent bin 13 matched with the wet material agent bin 10 is disposed in the radial removal tower 12, two side bin walls 131 of the dry material agent bin 13 are porous plate structures, the dry material agent 132 is filled in the middle, a sandwich structure with an adsorption function of the dry material agent in the middle is formed, and the waste incineration flue gas passes through the sandwich layer, so that harmful gases such as dioxin and the like are removed.
Embodiment four:
the first embodiment is an improvement of the first embodiment, and relates to refinement of the connection relationship between the top of the dry material agent bin 13 and the wet material agent bin 10, in this embodiment, the top of the dry material agent bin 13 and the bottom of the wet material agent bin 10 are fixedly connected in a matching manner, and a first plug valve 62 is arranged between the top of the dry material agent bin 13 and the bottom of the wet material agent bin 10, so that the dry material agent entering the dry material agent bin 13 is conveniently released and regulated.
Fifth embodiment:
the first embodiment is an improvement of the first embodiment, and relates to refinement of the flue gas entering and exiting the heat exchange box 9, in this embodiment, a first flue gas inlet 91 is provided on one side of the heat exchange box 9, and the entering flue gas passes through a wet material agent storage bin 10 and is discharged from a first flue gas outlet 92 on the opposite side.
Example six:
the first embodiment is an improvement of the first embodiment, and relates to a refinement of the trend of the flue gas in the radial removal tower 12, in this embodiment, a flue gas second inlet 121 is provided on one side of the radial removal tower 12, after the flue gas enters the radial removal tower 12, the flue gas passes through the drier bin 13 to be purified, the purified flue gas is discharged from a flue gas second outlet 122 of the radial removal tower 12, and the flue gas second inlet 121 is connected with the flue gas first outlet 92 through a pipeline.
Embodiment seven:
the first embodiment is a modification of the first embodiment, and the second plug valve 61 is disposed at the connection position of the kneading tank 2 and the agent molding tank 7.
Example eight:
the first embodiment is an improvement of the first embodiment, and relates to a refinement of the atomizer, in this embodiment, the atomizer 3 is provided with a plurality of atomizer, and is uniformly distributed on the upper portion of the inner wall of the kneading box 2, so as to uniformly spray water mist to the fly ash 5, prevent uneven spraying, and be not easy to mix uniformly.
Example nine:
the first embodiment is an improvement of the first embodiment, and relates to a refinement of the removal tower 12, in this embodiment, a discharge outlet of the dry material agent 132 is provided at the bottom of the radial removal tower 12, and after the dry material agent 132 is used for a period of time, the dead dry material agent can be discharged from the discharge outlet.
Example ten:
the first embodiment is an improvement of the first embodiment, and relates to a refinement of the installation and fixation of the material agent forming tank 7 and the radial removal tower 12, wherein the material agent forming tank 7 and the radial removal tower 12 in the first embodiment are respectively and fixedly installed on a floor through a supporting device.
Because the fly ash has larger specific surface area, finer granularity and more alkaline substances and residual carbon particles, the device utilizes the property of the fly ash, and the fly ash and water are kneaded and molded by referring to the preparation process of the activated carbon to form a material agent of the 'activated carbon-like', thereby playing a good adsorption function. The working flow of the device is as follows: the fly ash 5 falls into the kneading box 2 by gravity from the fly ash storage bin 1, clean water is sprayed into the kneading box 2 through the atomizing nozzle 3 and fully kneaded with the fly ash 5 under the action of the stirrer 4, after the material kneading is finished, the second gate valve 61 is opened, the material falls into the material agent forming tank 7 by gravity, the wet material agent 11 is formed under the extrusion of the extruder 8, the wet material agent 11 slides into the wet material agent storage bin 10 by gravity, the garbage incineration flue gas is introduced into the heat exchange box 9 and indirectly exchanges heat with the wet material agent 11, the wet material agent can be heated and dried by heat exchange, the first gate valve 62 is opened, the dry material 132 falls into the dry material agent bin 13 in the radial removal tower by gravity, the bin walls 131 at two sides of the dry material agent bin 13 adopt a porous plate structure, the middle is filled with the dry material agent 132 to form a sandwich structure with an adsorption function of the dry material agent, and the garbage incineration flue gas passes through the sandwich layer, and harmful gases such as dioxin are removed.
Claims (10)
1. The device is characterized by comprising a fly ash storage bin (1), a kneading box (2), a material forming tank (7), a wet material storage bin (10) and a radial removal tower (12) which are sequentially and fixedly connected from top to bottom, wherein the kneading box (2) is provided with a stirring device (4) and an atomizing nozzle (3), one side of the bottom of the material forming tank (7) is connected with the top side of a heat exchange box (9), an extruder (8) arranged at the bottom of the material forming tank (7) penetrates through the connecting side and is in through connection with the top of the wet material storage bin (10) arranged in the heat exchange box (9), and the bottom of the heat exchange box (9) is fixedly connected with the top of the radial removal tower (12); the heat exchange box (9) and the radial removal tower (12) are both provided with a flue gas outlet and a flue gas inlet.
2. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that the extruder (8) is a screw press.
3. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that a dry material agent bin (13) matched with a wet material agent bin (10) is arranged in the radial removal tower (12), two side bin walls (131) of the dry material agent bin (13) are of porous plate structures, dry material agent (132) is filled in the middle of the dry material agent bin, and a sandwich structure with an adsorption function of the dry material agent (132) is formed in the middle of the dry material agent bin.
4. A treatment device for dioxin in waste incineration flue gas according to claim 3, characterized in that the top of the dry material agent bin (13) and the bottom of the wet material agent bin (10) are fixedly connected in a matching way, and a first plug valve (62) is arranged between the two.
5. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that one side of the heat exchange box (9) is provided with a flue gas first inlet (91), and the entered flue gas passes through a wet material agent storage bin (10) and is discharged from a flue gas first outlet (92) on the opposite side.
6. The treatment device for dioxin in waste incineration flue gas according to claim 1, wherein a flue gas second inlet (121) is arranged on one side of the radial removal tower (12), after the flue gas enters the radial removal tower (12), the flue gas passes through a drier bin (13) to be purified, the purified flue gas is discharged from a flue gas second outlet (122) of the radial removal tower (12), and the flue gas second inlet (121) is connected with a flue gas first outlet (92) through a pipeline.
7. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that a second plug valve (61) is arranged at the connection part of the kneading box (2) and the feed agent forming tank (7).
8. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that a plurality of atomizing nozzles (3) are arranged and uniformly distributed on the upper part of the inner wall of the kneading box (2).
9. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that the bottom of the radial removal tower (12) is provided with a dry agent (132) discharge outlet.
10. The treatment device for dioxin in waste incineration flue gas according to claim 1, characterized in that the agent forming tank (7) and the radial removal tower (12) are respectively fixedly mounted on the floor by supporting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321462531.3U CN220443493U (en) | 2023-06-09 | 2023-06-09 | A processing apparatus for dioxin in msw incineration flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321462531.3U CN220443493U (en) | 2023-06-09 | 2023-06-09 | A processing apparatus for dioxin in msw incineration flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443493U true CN220443493U (en) | 2024-02-06 |
Family
ID=89735278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321462531.3U Active CN220443493U (en) | 2023-06-09 | 2023-06-09 | A processing apparatus for dioxin in msw incineration flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443493U (en) |
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2023
- 2023-06-09 CN CN202321462531.3U patent/CN220443493U/en active Active
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