CN110075666B - Exhaust gas treatment system - Google Patents
Exhaust gas treatment system Download PDFInfo
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- CN110075666B CN110075666B CN201910465035.5A CN201910465035A CN110075666B CN 110075666 B CN110075666 B CN 110075666B CN 201910465035 A CN201910465035 A CN 201910465035A CN 110075666 B CN110075666 B CN 110075666B
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- 239000000428 dust Substances 0.000 claims abstract description 49
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 14
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010457 zeolite Substances 0.000 claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 claims abstract description 10
- 238000003795 desorption Methods 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 12
- 239000002912 waste gas Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 73
- 238000002485 combustion reaction Methods 0.000 description 9
- 239000010815 organic waste Substances 0.000 description 7
- 239000012855 volatile organic compound Substances 0.000 description 5
- 238000007084 catalytic combustion reaction Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012719 wet electrostatic precipitator Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- -1 and in an embodiment Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 238000006467 substitution reaction 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/063—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/60—Combustion in a catalytic combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides an exhaust gas treatment system which comprises a filter assembly, a zeolite rotating wheel, a heat exchanger, a wind mixer and a catalytic burner which are sequentially connected through pipelines, and further comprises a second filter assembly and a dust removing device, wherein one end of the second filter assembly is connected with the dust removing device through a pipeline, and the other end of the second filter assembly is connected with the heat exchanger through a pipeline. The exhaust gas treatment system has the advantage of efficiently treating exhaust gas.
Description
Technical Field
The invention relates to the field of purification treatment of organic waste gas, in particular to a waste gas treatment system.
Background
VOCs refer to volatile organic compounds. Typical sources of VOCs emissions can be categorized into human emissions and natural emissions, with human emissions being the primary source, and most likely being the result of petrochemical industry related industries, product consumption and motor vehicle exhaust. VOCs have complex components and serious harm to human bodies, and have special odor which can cause various uncomfortable feelings of human bodies. When industrial production is carried out, a large amount of waste gas containing VOCs is generated, and in many cases, the treatment requirement is difficult to reach by adopting a purification technology, and the treatment efficiency is low. Therefore, by utilizing the advantages of different unit treatment technologies and adopting a combined treatment process, not only can the emission requirements be met, but also the treatment efficiency can be improved.
Disclosure of Invention
In view of this, it is necessary to provide an exhaust gas treatment system that efficiently treats exhaust gas.
The invention provides an exhaust gas treatment system which comprises a filter assembly, a zeolite rotating wheel, a heat exchanger, a wind mixer and a catalytic burner which are sequentially connected through pipelines, and further comprises a second filter assembly and a dust removing device, wherein one end of the second filter assembly is connected with the dust removing device through a pipeline, and the other end of the second filter assembly is connected with the heat exchanger through a pipeline.
Further, the filter assembly comprises a first filter, an air inlet and a first air supplementing valve, wherein the air inlet is arranged at one end of the first filter, and the first air supplementing valve is arranged in the air inlet.
Further, the dust removing device is connected to the air inlet through a pipeline.
Further, the dust removing device is a pulse dust remover and comprises a filter cylinder type cloth bag and a pulse generator, and when the pressure difference of the filter cylinder type cloth bag reaches a set value, the pulse generator generates high-pressure pulse airflow to blow off dust attached to the filter cylinder type cloth bag.
Further, the dust removing device is a wet electrostatic dust remover, a dust collecting pipe is arranged in the dust removing device, a discharge electrode wire is arranged in the dust collecting pipe, and micro-particle dust in the waste gas is adsorbed to the inner surface of the dust collecting pipe under the electric action of the discharge electrode wire.
Further, the zeolite rotating wheel is provided with an adsorption area, and one end of the adsorption area is connected with the first filter through a first air inlet pipe.
Furthermore, the zeolite runner is also provided with a cooling zone, one end of the cooling zone is connected with the first filter through a second air inlet pipe, and the other end of the cooling zone is connected with the heat exchanger through a fourth air inlet pipe.
Further, the fourth air inlet pipe is further provided with a branch pipe and a second regulating valve, one end of the branch pipe is connected with the fourth air inlet pipe, and the other end of the branch pipe is connected with the air mixer.
Furthermore, the zeolite runner is also provided with a desorption zone, one end of the desorption zone is connected with the air mixer through a fifth air inlet pipe, and the other end of the desorption zone is connected with the catalytic combustor through a sixth air inlet pipe.
Further, the fifth air inlet pipe is provided with a first sensor and a second sensor for doubly monitoring the temperature of the air passing through the fifth air inlet pipe.
In the exhaust gas treatment system, the second filter assembly and the filter assembly are used for simultaneously treating the exhaust gas, so that the exhaust gas treatment system is used for simultaneously treating various exhaust gases, and the exhaust gas treatment efficiency is improved. The dust removing device is connected to the second filtering component through a pipeline, so that the waste gas treatment efficiency of the second filtering component is improved.
Drawings
FIG. 1 is a schematic diagram of an exhaust treatment system 100 according to an embodiment of the present invention.
Description of the main reference signs
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the above-recited objects, features and advantages of embodiments of the present application can be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. The features of the embodiments of the present application may be combined with each other without collision.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention, in which embodiments described are some, but not all, of the embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are obtained by a person of ordinary skill in the art without making any inventive effort, are within the scope of the embodiments of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the invention belong. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to FIG. 1, the exhaust treatment system 100 is used to treat organic exhaust. The exhaust treatment system 100 includes a filter assembly 10, a zeolite rotor 20, a heat exchanger 30, a mixer 40, a catalytic burner 50, a second filter assembly 60, a dust collector 70, a stack 80, and a control assembly (not shown). The filter assembly 10, the zeolite wheel 20, the heat exchanger 30, the air mixer 40, the catalytic burner 50 and the chimney 80 are sequentially connected through pipelines, one end of the second filter assembly 60 is connected to the dust removing device 70 through a pipeline, and the other end is respectively connected to the heat exchanger 30 and the chimney 80 through a pipeline.
The filter assembly 10 includes a first filter 11, an air inlet 12, a first air inlet pipe 13, a second air inlet pipe 14, and a first air supply valve 15. The air inlet 12 is disposed at one end of the first filter 11, so as to guide the organic exhaust gas into the inner cavity of the first filter 11, and remove particulate dust in the organic exhaust gas through the first filter 11. The first air inlet pipe 13 and the second air inlet pipe 14 have one end connected to the first filter 11 and the other end connected to the zeolite wheel 20, respectively, so as to introduce the organic waste gas treated by the first filter 11 into the zeolite wheel 20. The first air compensating valve 15 is installed in the air inlet 12 to compensate the air quantity. In one embodiment, the first filter 11 is a cloth bag filter.
The zeolite wheel 20 is provided with an adsorption zone 21, a cooling zone 22 and a desorption zone 23, wherein one end of the adsorption zone 21 is connected to the first filter 11 through the first air inlet pipe 13, and the other end is connected to the chimney 80 through the third air inlet pipe 24. The third air inlet pipe 24 is provided with a first adsorption blower 25 and a second air supplementing blower 251, the second air supplementing blower 251 is arranged close to the adsorption area 21, the first adsorption blower 25 sends most of organic waste gas into the adsorption area 21, and then sends the gas purified by adsorption into the chimney 80 for discharge.
One end of the cooling zone 22 is connected to the first filter 11 through the second air inlet pipe 14, and the other end is connected to the second adsorption fan 27 through the fourth air inlet pipe 26, so that part of the organic waste gas is sent into the cooling zone 22 for cooling and drying. The second adsorption blower 27 is also connected to the heat exchanger 30 through a pipe to heat the gas cooled and dried by the cooling zone 22. The fourth air inlet pipe 26 is provided with a first regulating valve 261 for regulating the flow rate of the cool and dry air introduced into the heat exchanger 30. The fourth air inlet pipe 26 is further provided with a branch pipe 262, a second regulating valve 263 is arranged on the branch pipe 262, one end of the branch pipe 262 is connected to the fourth air inlet pipe 26, and the other end is connected to the air mixer 40, so that part of cooling air is introduced into the air mixer 40. The second regulating valve is used for regulating the flow rate of the cooling and drying gas into the air mixer 40. The branch pipe 262 is also provided with a first flame arrester 264, and the first flame arrester 264 is used for preventing high-temperature gas from burning, so that the safety of the exhaust gas treatment system 100 is improved.
One end of the desorption zone 23 is connected to the air mixer 40 through a fifth air inlet pipe 28, so that the air which is mixed by the air mixer 40 and reaches the set desorption temperature is sent into the desorption zone 23, and the high-concentration organic components adsorbed in the zeolite rotating wheel 20 are blown off to form high-concentration organic waste gas, so that the desorption capacity of the desorption zone is recovered. The fifth air intake pipe 28 is provided with a first sensor 281 and a second sensor 282 for doubly monitoring the temperature of the air passing through the fifth air intake pipe 28. Specifically, the first sensor 281 and the second sensor 282 doubly monitor the gas temperature of the fifth gas inlet pipe 28, and the control assembly controls the opening of the second regulating valve 263 to meet the temperature requirement. The other end of the desorption zone 23 is connected to the second adsorption blower 27 through a sixth air inlet pipe 29, so as to send the desorbed high-concentration organic waste gas into the catalytic combustor 50 for purification treatment. A third sensor 291 is mounted on the sixth intake pipe 29 to monitor the temperature of the gas passing through the sixth intake pipe 29.
One end of the heat exchanger 30 is connected to the second adsorption blower 27 through a pipe, and the other end is connected to the chimney 80 through a seventh air inlet pipe 31, so as to send the exhaust gas after catalytic combustion into the chimney 80 for discharge. The seventh air inlet pipe 31 is further provided with a second branch pipe 311 and a third regulating valve 312, one end of the second branch pipe 311 is connected to the seventh air inlet pipe 31, and the other end is connected to the air mixer 40, so that the air heated by the heat exchanger 30 is sent into the air mixer 40, and mixed with the cooling air above to control the air temperature. The third regulating valve 312 is installed on the second branch pipe 311 to regulate the flow rate of the heating gas introduced into the air mixer 40. The seventh intake pipe 31 is also fitted with a fourth sensor 313 to monitor the temperature of the gas passing through the seventh intake pipe 31.
The air mixer 40 is used for performing heat exchange on the gas passing through the cooling area 22 and the heat exchanger 30 to form a mixed gas, so that the temperature of the mixed gas reaches a set desorption temperature. Specifically, the cooling gas passing through the cooling zone 22 is sent to the air mixer 40 through the branch pipe 262, the heating gas passing through the heat exchanger 30 is sent to the mixing assembly through the second branch pipe 311 and sent to the desorption zone 23 through the fifth air inlet pipe 28, and the high-concentration organic components adsorbed in the desorption zone 23 are blown off to form high-concentration organic waste gas, so that the desorption capacity of the desorption zone 23 is recovered. In one embodiment, the set desorption temperature is 190 ℃ to 220 ℃.
The catalytic combustor 50 comprises a combustion chamber 51 and a plurality of electric heaters 52, wherein the combustion chamber 51 comprises an input end 511 and an output end 512, and the input end 511 and the output end 512 are respectively arranged at two opposite ends of the combustion chamber 51. The input end 511 and the output end 512 are respectively connected to the heat exchanger 30 through pipes, and the input end 511 is used for sending the gas in the heat exchanger 30 into the combustion chamber 51 for catalytic combustion treatment. The output 512 is used to feed the heated gas into the heat exchanger 30. The input 511 is fitted with a fifth sensor 513 to monitor the temperature of the gas passing through the input 511. The output 512 is fitted with a sixth sensor 514 to monitor the temperature of the gas passing through the output 512. The electric heater 52 is installed in the combustion chamber 51 to heat the gas in the combustion chamber 51.
When the exhaust treatment system 100 is in the pre-heat stage, the electric heater 52 is activated and the heat exchanger 30 continuously delivers gas into the combustion chamber to heat the gas by the electric heater 52. When the fifth sensor 513 detects that the temperature through the input 511 reaches a second set point, the exhaust treatment system 100 switches from the warm-up phase to the desorption phase. In one embodiment, the second set point is 300 ℃.
When the exhaust gas treatment system 100 is in the desorption phase, the gas from the combustion chamber 51 enters the heat exchanger 30 through the output 512 and exchanges heat with the gas in the heat exchanger 30. When the sixth sensor 514 detects that the temperature passing through the output 512 reaches the third set value, the electric heater 52 is turned off to reduce power consumption and save cost. In one embodiment, the third set point is 300 ℃. When the fifth sensor 513 detects that the temperature of the gas passing through the output terminal is lower than the fourth set value, the electric heater 52 is fully turned on to heat the gas. In one embodiment, the fourth set point is 260 ℃. When the fifth sensor 513 detects that the temperature of the gas passing through the output terminal is within a set range, the electric heater 52 is partially turned on to heat the gas. In one embodiment, the set range is 260 ℃ to 280 ℃.
The second filter assembly 60 includes a second filter 61, a second air inlet 62, an eighth air inlet pipe 63, a third adsorption blower 64, and a ninth air inlet pipe 65. The second air inlet 62 is disposed at one end of the second filter 61 to introduce the exhaust gas, which in one embodiment is styrene, into the inner cavity of the second filter 61. The eighth air intake pipe 63 has one end connected to the second filter 61 and the other end connected to the third adsorption blower 64. The third adsorption blower 64 is further connected to the heat exchanger 30 through the ninth air inlet pipe 65, so that the exhaust gas treated by the second filter 61 is sent to the catalytic combustor 50 through the heat exchanger 30 for catalytic combustion treatment. A fifth adjusting valve 651, a check valve 654 and a second flame arrester 655 are mounted on the ninth air intake pipe 65, and the fifth adjusting valve 651 is used for adjusting the flow rate of the exhaust gas into the heat exchanger 30. The check valve 654 is used to place the reverse flow of the gas through the ninth intake pipe 65. The second flame arrestor 655 is used to prevent the combustion of high temperature gases and to enhance the safety of the second filter assembly 60.
The ninth air intake pipe 65 is further provided with a third branch pipe 652 and a sixth regulating valve 653. The third branch pipe 652 has one end connected to the ninth intake pipe 65 and the other end connected to the stack 80, so as to send the exhaust gas into the stack 80 for discharge during preheating. The sixth regulating valve is installed on the third branch pipe 652 to regulate the flow rate of the exhaust gas at the time of warm-up.
In one embodiment, the dust removing device 70 is connected to the second air inlet 62 through a pipe to remove particulate dust in the exhaust gas. In another embodiment, the dust removing device 70 is connected to the air inlet 12 through a pipe.
In one embodiment, the dust removing device 70 is a pulse dust collector. Specifically, a filter cylinder type cloth bag 71 and a pulse generator (not shown) are arranged in the dust removal device, the filter cylinder type cloth bag 71 is used for attaching particulate matters and dust in the waste gas into the filter cylinder type cloth bag 71, when the pressure difference of the filter cylinder type cloth bag 71 reaches a set value, the pulse generator is used for generating high-pressure pulse air flow, and the dust attached into the filter cylinder type cloth bag 71 is blown off and collected, so that the waste gas is continuously purified, and the waste gas treatment efficiency is improved.
It may be appreciated that the dust removing device 70 may also be a wet electrostatic precipitator, specifically, a dust collecting tube (not shown) is disposed in the dust removing device 70, an electric discharge wire (not shown) is disposed in the dust collecting tube, and fine particulate dust in the exhaust gas is adsorbed to the inner surface of the dust collecting tube under the electric power action of the electric discharge wire. The wet electrostatic precipitator is used for treating particles with high viscosity in exhaust gas, and in an embodiment, the particles are grease particles.
When the exhaust gas treatment system 100 is in the preheating stage, the dust removing device 70 is turned on, the sixth adjusting valve 653 is turned on, the fifth adjusting valve 651 is turned off, and the third adsorption blower 64 converts the frequency to a small air volume, so as to send the exhaust gas into the chimney 80 for discharge. When the exhaust gas treatment system 100 is in the desorption stage, the dust removing device 70 is turned on, the sixth adjusting valve 653 is turned off, the fifth adjusting valve 651 is turned on, and the third adsorption blower 64 converts frequency to a large air volume to send the exhaust gas into the catalytic combustor 50 for catalytic combustion treatment.
The control assembly is electrically connected to the zeolite rotor 20, the electric heater 52, the second filter assembly 60, and the dust collector 70, as well as to all of the regulating valves and sensors in the exhaust gas treatment system 100, to control the exhaust gas treatment system 100. Specifically, the control unit performs proportional opening adjustment on the first adjusting valve 261, the second adjusting valve 263 and the third adjusting valve 312 according to the temperatures monitored by the first sensor 281 and the second sensor 282, so that the mixed gas of the air mixer 40 reaches the set desorption temperature. The exhaust treatment system 100 further includes a plurality of duct insulators (not numbered) mounted to each duct to maintain each duct temperature and reduce temperature variation of the gas during duct transfer to improve purification efficiency.
In the exhaust gas treatment system 100, the heat exchanger 30 and the air mixer 40 exchange heat of the gas to achieve a predetermined desorption temperature, so as to save the cost of heating the gas. The exhaust gas is treated simultaneously with the filter assembly 10 by the second filter assembly 60, so that the exhaust gas treatment system 100 treats various exhaust gases simultaneously, thereby improving the exhaust gas treatment efficiency. The dust removing device 70 is connected to the second filter assembly 60 through a pipe to improve the exhaust gas treatment efficiency of the second filter assembly.
The foregoing embodiments are merely for illustrating the technical solution of the embodiment of the present invention, but not for limiting the same, although the embodiment of the present invention has been described in detail with reference to the foregoing preferred embodiments, it will be understood by those skilled in the art that modifications and equivalent substitutions may be made to the technical solution of the embodiment of the present invention without departing from the spirit and scope of the technical solution of the embodiment of the present invention.
Claims (6)
1. The utility model provides an exhaust treatment system, includes filter component, zeolite runner, heat exchanger, air mixer and catalytic burner that loops through the pipe connection, its characterized in that: the waste gas treatment system further comprises a second filtering component and a dust removing device, wherein one end of the second filtering component is connected with the dust removing device through a pipeline, and the other end of the second filtering component is connected with the heat exchanger through a pipeline;
the waste gas treatment system further comprises a chimney, the filtering component comprises a first filter, and the zeolite rotating wheel is provided with an adsorption zone, a cooling zone and a desorption zone;
One end of the adsorption zone is connected with the first filter through a first air inlet pipe, and the other end of the adsorption zone is connected with the chimney through a third air inlet pipe;
One end of the cooling zone is connected with the first filter through a second air inlet pipe, the other end of the cooling zone is connected with a second adsorption fan through a fourth air inlet pipe, a branch pipe and a second regulating valve are further arranged on the fourth air inlet pipe, and the branch pipe is connected with the air mixer;
One end of the desorption area is connected with the air mixer through a fifth air inlet pipe, and the other end of the desorption area is connected with the second adsorption fan through a sixth air inlet pipe;
One end of the heat exchanger is connected with the second adsorption fan through a pipeline, the other end of the heat exchanger is connected with the chimney through a seventh air inlet pipe, a second branch pipe and a third regulating valve are further installed on the seventh air inlet pipe, one end of the second branch pipe is connected with the seventh air inlet pipe, and the other end of the second branch pipe is connected with the air mixer.
2. The exhaust treatment system of claim 1, wherein: the filter assembly further comprises an air inlet and a first air supplementing valve, the air inlet is formed in one end of the first filter, and the first air supplementing valve is installed in the air inlet.
3. The exhaust treatment system of claim 2, wherein: the second filter assembly comprises a second air inlet, and the dust removing device is connected with the second air inlet through a pipeline.
4. The exhaust treatment system of claim 1, wherein: the dust removing device is a pulse dust remover and comprises a filter cylinder type cloth bag and a pulse generator, and when the pressure difference of the filter cylinder type cloth bag reaches a set value, the pulse generator generates high-pressure pulse airflow to blow off dust attached to the filter cylinder type cloth bag.
5. The exhaust treatment system of claim 1, wherein: the dust collector is a wet electrostatic dust collector, a dust collecting pipe is arranged in the dust collector, discharge wires are arranged in the dust collecting pipe, and fine particulate matters in waste gas are adsorbed to the inner surface of the dust collecting pipe under the action of electric power of the discharge wires.
6. The exhaust treatment system of claim 1, wherein: the fifth air inlet pipe is provided with a first sensor and a second sensor which are used for doubly monitoring the temperature of the air passing through the fifth air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465035.5A CN110075666B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465035.5A CN110075666B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
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| Publication Number | Publication Date |
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| CN110075666A CN110075666A (en) | 2019-08-02 |
| CN110075666B true CN110075666B (en) | 2024-05-14 |
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| CN201910465035.5A Active CN110075666B (en) | 2019-05-30 | 2019-05-30 | Exhaust gas treatment system |
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