CN109464893B - Wood molding waste gas environment-friendly treatment system - Google Patents
Wood molding waste gas environment-friendly treatment system Download PDFInfo
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- CN109464893B CN109464893B CN201910040130.0A CN201910040130A CN109464893B CN 109464893 B CN109464893 B CN 109464893B CN 201910040130 A CN201910040130 A CN 201910040130A CN 109464893 B CN109464893 B CN 109464893B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 31
- 239000002023 wood Substances 0.000 title abstract description 7
- 238000000465 moulding Methods 0.000 title abstract description 4
- 239000000428 dust Substances 0.000 claims abstract description 138
- 238000001179 sorption measurement Methods 0.000 claims abstract description 127
- 239000007921 spray Substances 0.000 claims abstract description 61
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 52
- 238000000889 atomisation Methods 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 110
- 238000006303 photolysis reaction Methods 0.000 claims description 49
- 230000015843 photosynthesis, light reaction Effects 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 28
- 238000005507 spraying Methods 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 16
- 238000004332 deodorization Methods 0.000 claims description 14
- 230000007613 environmental effect Effects 0.000 claims description 11
- 239000004408 titanium dioxide Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229920000426 Microplastic Polymers 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 206010012735 Diarrhoea Diseases 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 8
- 239000003595 mist Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- 238000009736 wetting Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
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- 150000003573 thiols Chemical class 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229920006362 Teflon® Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
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- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
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- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- 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
- B01D53/52—Hydrogen sulfide
-
- 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
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- 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
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an environment-friendly treatment system for wood-plastic grain waste gas, which comprises an atomization dust fall device, a spray vortex tower, a wet electrostatic adsorption device, a deodorizing device and a fan which are sequentially arranged; the fan guides and drives the waste gas to be treated to be discharged after being treated by the atomization dust settling device, the spray vortex tower, the wet electrostatic adsorption device and the deodorizing device in sequence. The waste gas environment-friendly treatment system is used for purifying waste gas which is produced in wood molding and grain processing production and has foul smell and is mixed with dust and particulate matters, and the waste gas sequentially passes through an atomization dust falling device, a spray vortex tower, a wet electrostatic adsorption device and a deodorizing device to carry out dust falling and dust removing treatment, washing treatment, flue gas removing treatment and deodorizing treatment, and finally is completely harmless, completely harmless and meets the national standard emission; especially, compared with the prior art, the treatment efficiency of the smoke and smell can be improved by more than 90 percent, and the treatment efficiency is improved from 30 to 50 percent to more than 90 percent in the prior art.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a wood-plastic particle waste gas environmental protection treatment system.
Background
In the industries of producing plant fibers (wood powder, straw powder, bran powder and the like) and plastic compounding, a common co-directional parallel screw extruder is used for extrusion granulation, a large amount of low-molecular volatile matters and dust particles are generated under the compression and high temperature effects of the extrusion granulator, the low-molecular volatile matters volatilize from formula materials such as lubricants and the like, malodorous smell is discharged together with the particles and water vapor, and dust and waste gas of the particles with the malodorous smell can reach the emission standard after being treated, otherwise, serious pollution is caused to the atmosphere. And the temperature of dust and particles is generally about 200 ℃, so that secondary hazard, such as fire disaster, is easily brought about in the treatment process.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the environment-friendly treatment system for the wood-plastic particle waste gas, which is used for purifying the waste gas with malodorous smell and dust and particulate matters, and finally completely harmless and meets the national standard emission; especially, compared with the prior art, the treatment efficiency of the smoke and smell can be improved by more than 90 percent, and the treatment efficiency is improved from 30 to 50 percent to more than 90 percent in the prior art.
In order to solve the technical problems, the invention provides an environment-friendly wood-plastic particle waste gas treatment system, which comprises an atomization dust-settling device, a spray vortex tower, a wet electrostatic adsorption device, a deodorizing device and a fan which are sequentially arranged;
the atomization dust falling device comprises a dust falling chamber and an atomization assembly, wherein the dust falling chamber is provided with a first air inlet and a first air outlet; the atomization component is provided with a steam fog generator and a steam fog spray head, the steam fog spray head is arranged in the dust fall chamber, and the atomization component sprays steam fog into the dust fall chamber through the steam fog spray head;
the spray vortex tower comprises a tower body and a first spray assembly, wherein the tower body is provided with a second air inlet and a second air outlet, and the second air inlet is connected with the first air outlet through a pipeline; a vortex area is arranged at the position, connected with the second air inlet, in the tower body, and waste gas passing through the vortex area ascends to the top of the tower body in a vortex mode; the first spraying assembly is arranged in the tower body and is arranged right above the vortex area, and the first spraying assembly sprays washing water into the tower body through a first spraying head;
the wet electrostatic adsorption device comprises an electrostatic adsorption chamber and a second spray assembly, wherein the electrostatic adsorption chamber is provided with a third air inlet and a third air outlet, and the third air inlet is connected with the second air outlet through a pipeline; the electrostatic adsorption chamber is internally provided with honeycomb-shaped arranged pipe bodies, one end of each pipe body is communicated with a third air inlet, the other end of each pipe body is communicated with a third air outlet, discharge needles with saw-tooth structures are arranged in each pipe body, and the discharge needles are connected with a power supply device; the second spray assembly sprays washing water into each pipe body through a second spray header;
the deodorizing device comprises a deodorizing chamber, wherein the deodorizing chamber is provided with a fourth air inlet and a fourth air outlet, and the fourth air inlet is connected with the third air outlet through a pipeline; the deodorizing chamber is internally provided with one or a combination of a plurality of UV photolysis deodorizing components, a plasma deodorizing component and an active carbon deodorizing component;
the fan guides and drives waste gas to be treated to enter from the first air inlet and then pass through the atomization dust settling device, the spray vortex tower, the wet electrostatic adsorption device and the deodorizing device in sequence to be treated and then be discharged from the fourth air outlet.
In a preferred embodiment of the invention, the dust settling chamber is further provided with a first separator or/and a second separator, one end of the first separator, which extends vertically, is fixed at the middle upper part of the dust settling chamber, and a first communication port is formed between the other end of the first separator and the bottom of the dust settling chamber; one end of the second separator, which extends vertically, is fixed at the middle lower part of the dust fall chamber, and a second communication port is formed between the other end of the second separator and the top of the dust fall chamber; the first separator and the second separator divide the dust fall chamber into a plurality of dust fall chambers communicated through the first communication port or the second communication port.
In a preferred embodiment of the present invention, the steam fog generator further includes a water tank and a delivery pipeline, the delivery pipeline is connected with the water tank, the delivery pipeline extends to each dust settling chamber, and a pipeline booster pump and a pressure regulating valve are installed on the delivery pipeline; the steam spray nozzle is arranged on the conveying pipeline, and water in the conveying pipeline is sprayed out through the steam spray nozzle to form a steam fog state.
In a preferred embodiment of the present invention, the second air inlet is disposed at a lower portion of one side of the tower body, and the second air outlet is disposed at a top of the tower body; the tower body is internally provided with a demisting layer at a position close to a second air outlet of the tower body, a spraying area is arranged between the demisting layer and the vortex area along the flow direction of the air in the tower body, a plurality of groups of first spraying components are arranged in the spraying area along the flow direction of the air, and an diarrhea ring layer is arranged between every two first spraying components along the flow direction of the air.
In a preferred embodiment of the invention, the tower further comprises a waste discharge port arranged at the bottom of the tower body, wherein the waste discharge port is connected with a waste discharge box through an external pipeline, and the waste discharge box is connected with a water supply box of the first spraying assembly through a water tank with a valve.
In a preferred embodiment of the present invention, the electrostatic adsorption device is further provided with at least two electrostatic adsorption chambers, wherein one end of each pipe in the first stage electrostatic adsorption chamber is communicated with the third air inlet, the other end of each pipe in the next stage electrostatic adsorption chamber is communicated with one end of each pipe in the last stage electrostatic adsorption chamber, and the tail end of each pipe in the last stage electrostatic adsorption chamber is communicated with the third air outlet; the inner wall of each pipe body in the electrostatic adsorption chamber is coated with a coating layer.
In a preferred embodiment of the present invention, each tube body in the electrostatic adsorption chamber extends along the vertical direction, and the gas moves in an S shape in the tube body of the adjacent two-stage electrostatic adsorption chamber.
In a preferred embodiment of the present invention, the UV photolysis deodorization assembly further includes a photolysis tank, and a first air inlet and a first air outlet are respectively configured at two ends of the photolysis tank along the length extension direction; a filter cotton layer is arranged in the photolysis tank close to the first air inlet; a plurality of UV photolysis lamp tube groups are sequentially arranged in the photolysis box along the airflow flowing direction, each UV photolysis lamp tube group is provided with a plurality of UV photolysis lamp tubes which are sequentially arranged along the direction perpendicular to the airflow flowing direction, and the UV photolysis lamp tubes of two adjacent UV photolysis lamp tube groups are alternately staggered and installed; titanium dioxide plate layers are arranged between two adjacent UV photolysis lamp tube groups.
In a preferred embodiment of the present invention, the plasma deodorizing assembly further includes a plasma box, and two ends of the plasma box along the length extension direction of the plasma box are respectively provided with a second air inlet and a second air outlet; a filter cotton layer is arranged in the plasma box close to the second air inlet; a plurality of plasma plates are sequentially arranged in the plasma box along the airflow direction, and a titanium dioxide plate layer is arranged between every two adjacent plasma plates.
In a preferred embodiment of the present invention, the activated carbon deodorizing component further includes an activated carbon adsorption tank, and a third air inlet and a third air outlet are respectively configured at two ends of the activated carbon adsorption tank along the length extension direction; a third separator and a fourth separator are sequentially arranged in the activated carbon adsorption box along the airflow flowing direction, communication ports are formed in the third separator and the fourth separator, and the third separator and the fourth separator divide the internal space of the activated carbon adsorption box into a first adsorption chamber, a second adsorption chamber and a third adsorption chamber which are respectively communicated through the two communication ports; a first activated carbon adsorption bed is arranged on the third separator around the communication port of the third separator, the first activated carbon adsorption bed extends to the first adsorption chamber, and the end part extending to the first adsorption chamber is arranged on the fifth separator; and a second activated carbon adsorption bed is arranged on the fifth separator around the communication port of the fifth separator, the second activated carbon adsorption bed extends to the third adsorption chamber, and the end part of the second activated carbon adsorption bed extending to the third adsorption chamber is arranged on the sixth separator.
The invention has the beneficial effects that: the waste gas environment-friendly treatment system is used for purifying waste gas which is produced in wood molding and grain processing production and has foul smell and is mixed with dust and particulate matters, and the waste gas sequentially passes through an atomization dust falling device, a spray vortex tower, a wet electrostatic adsorption device and a deodorizing device to carry out dust falling and dust removing treatment, washing treatment, flue gas removing treatment and deodorizing treatment, and finally is completely harmless, completely harmless and meets the national standard emission; especially, compared with the prior art, the treatment efficiency of the smoke and smell can be improved by more than 90 percent, and the treatment efficiency is improved from 30 to 50 percent to more than 90 percent in the prior art. The method has the following technical advantages:
firstly, an atomization assembly arranged in the atomization dust settling device sprays steam fog into a dust settling chamber, the steam fog or the water fog can be fully and crossly fused with flue gas for adsorption, the cooling adsorption effect is achieved, and the flue dust fused by the steam fog is easier to settle to the bottom of the dust settling chamber under the action of self gravity, so that the dust settling efficiency and the dust settling effect of the flue dust are improved; on the other hand, the sprayed steam fog can reduce the temperature of smoke dust, plays a role in wetting, can prevent fire disasters caused by drying the inner wall and the ground of the dust fall room, and improves the safety of smoke dust environmental protection treatment.
The cyclone water is formed in the tower body by utilizing wind power and water flowing rotational flow in the vortex spray tower, all particles and smoke entering the tower body are cleaned and adsorbed once through the cyclone water vortex, the dust settling effect is obvious, the operation efficiency of the whole system is improved, and the problem of blockage in all pipelines in the whole system is solved.
Thirdly, the smoke and dust waste gas enters a wet type electrostatic adsorption device after the dust concentration is reduced by high-efficiency vortex washing treatment, superfine smoke and dust are broken down by high voltage to form positive and negative ions, and then flow through an electrostatic electric field to be absorbed and captured by static electricity, so that the smoke and dust waste gas purification effect is achieved immediately, the black smoke purification efficiency is as high as 99%)! The flue gas belongs to ultrafine particle dust, the continuous normal operation of general bag-type dust collecting equipment can not be guaranteed, electric dust collection can carry out electrolytic separation and electrostatic adsorption on the flue gas with different working conditions and dust and waste gas with the power supply discharge of less than or equal to 0.001 um.
Fourthly, the deodorizing device selects one or a combination of a plurality of UV photolysis deodorizing components, plasma deodorizing components and active carbon deodorizing components according to the actual use requirement; the UV photolysis deodorization component irradiates malodorous gas by using an ultraviolet light beam generated by the UV photolysis lamp tube, cracks the malodorous gas, can efficiently remove main pollutants such as Volatile Organic Compounds (VOCs), inorganic matters, hydrogen sulfide, ammonia, thiols and the like, and various malodorous gases, on one hand, the components of oxygen in the air can be split under the action of high-energy ultraviolet rays, then ozone is generated through combination, and on the other hand, chemical bonds in the malodorous gas can be cracked to form free atoms and groups, and meanwhile, the generated ozone participates in the reaction process. The UV photolysis lamp tube can emit ultraviolet light with wavelengths of 185nm and 254nm, and the ultraviolet light with the wavelength of 254nm can be used for the sterilizing treatment of the oxidant. Ozone is reduced into oxygen under the irradiation of ultraviolet rays with the wavelength of 254nm, O3+254 nm- & gtO2+O can directly photolyze water and oxygen in the air, and high-grade oxidants such as hydroxyl free radicals, ozone and the like are generated for oxidation removal, so that the deodorizing effect is achieved.
In the plasma deodorization component, a large amount of high-energy electrons of the plasma bombard pollutant molecules, energy is converted into internal energy or kinetic energy of the pollutant molecules through inelastic collision, the molecules with energy are excited or ionized to form active groups, and when the energy obtained by the pollutant molecules is greater than the bonding energy of the molecular bonding energy of the pollutant molecules, the molecular bonding of the pollutant molecules is broken; macromolecular contaminants are converted to simple small molecular substances or directly decomposed into harmless gas components. Simultaneously, oxygen and moisture in the air generate a large amount of active groups such as active oxygen, hydroxyl and the like under the action of high-energy electrons, the active oxygen, the hydroxyl, harmful gases, molecules undergo oxidation and other complex chemical reactions, and finally, the waste gas components are converted into CO 2 And H 2 And the harmless substances such as O and the like can degrade pollutants and deodorize.
The activated carbon deodorizing component adsorbs organic waste gas by utilizing the adsorption characteristic of the activated carbon micropores, has better mechanical strength, chemical stability and thermal stability, has the purifying efficiency as high as 95 percent, and can directly discharge the air flow discharged from the activated carbon adsorption bed after reaching the discharge standard.
Drawings
FIG. 1 is a block diagram of an environmental protection treatment system for wood-plastic granules exhaust gas in a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing a front view of a dust settling chamber according to a preferred embodiment of the present invention;
FIG. 3 is a schematic top view of a cleanroom in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic view of the structure of a whirlpool spray tower in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of a wet electrostatic adsorbing apparatus according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view showing the structure of a UV photolytic deodorization module in accordance with a preferred embodiment of the present invention;
fig. 7 is a schematic view showing the structure of a plasma deodorizing assembly according to a preferred embodiment of the present invention;
fig. 8 is a schematic view showing the structure of an activated carbon deodorizing module in the preferred embodiment of the present invention.
The reference numerals in the figures illustrate: 1-a fan;
the device comprises a 2-atomization dust removal device, a 21-dust fall chamber, a 22-first air inlet, a 23-first air outlet, a 24-vapor spray nozzle, a 25-first separator, a 26-second separator, a 27-first communication port, a 28-second communication port, a 29-dust fall chamber, a 30-water tank, a 31-pipeline booster pump and a 32-pressure regulating valve;
4-spraying vortex towers, 41-tower bodies, 42-second air inlets, 43-second air outlets, 44-vortex areas, 45-first spray heads, 46-demisting layers, 47-waste discharge ports, 48-waste discharge boxes and 49-diarrhea ring layers;
6-wet electrostatic adsorption device, 61-electrostatic adsorption chamber, 62-third air inlet, 63-third air outlet, 64-tube body, 65-discharge needle, 66-second spray header;
7-deodorization device, 71-deodorization chamber, 72-fourth air inlet, 73-fourth air outlet;
the device comprises an 8-UV photolysis deodorization assembly, an 81-first air inlet, an 82-first air outlet, an 83-filter cotton layer, an 84-UV photolysis lamp tube group, an 85-UV photolysis lamp tube, an 86-titanium dioxide plate layer and an 87-photolysis box;
9-plasma deodorization components, 91-plasma boxes, 92-second air inlets, 93-second air outlets and 94-plasma plates;
10-active carbon deodorization components, 101-active carbon adsorption boxes, 102-third air inlets, 103-third air outlets, 104-third separators, 105-fourth separators, 106-fifth separators, 107-communication ports, 108-sixth separators, 109-first adsorption chambers, 110-second adsorption chambers, 111-third adsorption chambers, 112-first active carbon adsorption beds and 113-second active carbon adsorption beds.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Examples
As shown in fig. 1, this embodiment discloses an environmental protection treatment system for wood-plastic particle waste gas, which comprises an atomization dust-settling device 2, a spray vortex tower 4, a wet electrostatic adsorption device 6, a deodorizing device 7, a chimney 11 and a fan 1 which are sequentially arranged, wherein the fan 1 guides and drives waste gas to be treated to be discharged from the chimney 11 after being sequentially treated by the atomization dust-settling device, the spray vortex tower, the wet electrostatic adsorption device and the deodorizing device. The specific structure of each processing device is as follows:
1. atomization dust device 2
The atomization dust settling device 2 comprises a dust settling chamber 21 and an atomization assembly, wherein the dust settling chamber 21 is preferably in a cube structure, the volume of 15-100 cubic meters is allocated for every ten thousand air flows, and the like, the atomization dust settling chamber is arranged behind or above a cooling cyclone tank of a granulator, the bottom is subjected to waterproof treatment, no electric appliances or electric wires are allowed to exist in the atomization dust settling chamber, sparks caused by excessive dust particle concentration collision are prevented, and an explosion venting device is arranged above the dust settling chamber 21.
As shown in fig. 2 and 3, the dust settling chamber 21 has a first air inlet 22 on one side and a first air outlet 23 on the other side opposite to the first air inlet, a waste outlet 47 is provided at the bottom of the dust settling chamber 21, the waste outlet 47 is externally connected to a waste discharge box 48 through a waste discharge pipe, and a waste discharge valve is provided on the waste discharge pipe. The draught fan or the blower generates power to smoothly discharge the smoke dust entering the dust settling chamber 21 from the first air inlet 22 from the first air outlet 23, and the first air inlet 22 and the first air outlet 23 are respectively arranged at two sides of the length extending direction of the dust settling chamber 21, so that the longest path of the smoke dust in the dust settling chamber 21 along the linear direction can be ensured, and the dust settling efficiency and the dust settling effect can be improved.
As a first embodiment of the present application, a first separator 25 is disposed in the dust settling chamber 21, one end of the first separator 25 extending vertically is fixed at a middle upper portion of the dust settling chamber 21, a first communication port 27 is formed between the other end and a bottom of the dust settling chamber 21, and the first separator 25 divides the dust settling chamber 21 into a plurality of dust settling chambers 29 communicated through the first communication port 27.
As a second embodiment of the present application, a second separator 26 is disposed in the dust settling chamber 21, one end of the second separator 26 extending vertically is fixed at a middle lower portion of the dust settling chamber 21, a second communication port 28 is formed between the other end and a ceiling of the dust settling chamber 21, and the second separator 26 divides the dust settling chamber 21 into a plurality of dust settling chambers 29 communicated through the first communication port.
As a third embodiment of the present application, a first separator 25 and a second separator 26 are disposed in the dust settling chamber 21, one end of the first separator 25 extending vertically is fixed at the middle upper part of the dust settling chamber 21, and a first communication port 27 is formed between the other end and the bottom of the dust settling chamber 21; one end of the second separator 26 extending vertically is fixed at the middle lower part of the dust settling chamber 21, and a second communication port 28 is formed between the other end and the top of the dust settling chamber 21; the first and second separators 25 and 26 divide the dust settling chamber 21 into a plurality of dust settling chambers 29 communicating through first and second communication ports 27 and 28.
The atomizing unit has a mist generator and a mist nozzle 24, the mist nozzle 24 is installed in the dust settling chamber 21, and the atomizing unit generates and sprays mist into the dust settling chambers 29 through the mist nozzle 24.
The steam fog generated by the atomization component is sprayed into the dust settling chamber 29, so that on one hand, the steam fog or the water fog can be fully and crossly fused with the flue gas for adsorption, the cooling adsorption effect is realized, and the flue gas fused by the steam fog is easier to settle to the bottom of the dust settling chamber under the action of self gravity, thereby being beneficial to improving the dust settling efficiency and the dust settling effect of the flue gas; on the other hand, the sprayed steam fog can reduce the temperature of smoke dust, play a role in wetting, prevent the inner wall of the dust settling chamber 21 and the ground from being dry to generate fire, and improve the safety of smoke dust environmental protection treatment.
As a further improvement of the present application, by providing the first separator 25 or/and the second separator 26 in the dust chamber 21, the travel path of the dust inside the dust chamber 21 can be extended in the case where the dust chamber 21 has the same volume, for example, the conventional dust chamber 21, the inside of which is straight-through, and the dust moves in a straight line inside the dust chamber 21. In this application, the fumes move along an "S" shape in the dust settling chamber 21 to the first air outlet 23. After the moving path of the smoke dust is prolonged, the particles with smaller particle sizes (namely, lighter weight particles) are beneficial to settling to the bottom of the dust settling chamber 21 under the action of self gravity, so that the dust settling efficiency and the dust settling effect of the smoke dust can be greatly improved.
Specifically, the steam fog generator includes a water tank 30 and a delivery pipe, the delivery pipe is connected to the water tank 30, the delivery pipe extends to each dust fall chamber 29, and a pipe booster pump 31 and a pressure regulating valve 32 are installed on the delivery pipe; the steam spray nozzle 24 is installed on a conveying pipeline, and water in the conveying pipeline is sprayed out through the steam spray nozzle 24 to form a steam fog state. The pipeline booster pump 31 pumps the water in the water tank 30 into a conveying pipeline, and the steam fog spray head 24 is a terminal for spraying steam fog and a terminal for generating steam fog, water in the conveying pipeline is converted into steam fog after passing through the steam fog spray head 24, and generated steam fog is sprayed into the dust fall cavity 29.
Specifically, the delivery pipe has a main pipe and branch pipes, the branch pipes are installed on the first separator 25 and/or the second separator 26, and are installed on the top and/or the bottom of the dust fall chamber 29, the mist head 24 is installed on each of the branch pipes, each of the branch pipes is communicated with the main pipe, and the main pipe is communicated with the water tank. In the process that the smoke moves to the first air outlet 23 in the dust settling chamber 21, a plurality of steam spray nozzles 24 are distributed on the whole path, and particularly 10-50 steam spray nozzles 24 are configured according to ten thousand flow rates, so that the dust settling effect and the dust settling efficiency are optimal, and the effects of dust settling and cooling and wetting are achieved.
Further, the two sides of the length extension direction of the branch pipe are respectively provided with the vapor spray heads 24, and the vapor spray heads 24 on the two sides are staggered. Further improving the dust settling effect and cooling and wetting effects on the smoke dust.
Specifically, the first separator 25 and the second separator 26 are partition plates or walls.
2. Spray vortex tower 4
As shown in fig. 4, the spray vortex tower 4 includes a tower body 41 and a first spray assembly, wherein the tower body 41 is provided with a second air inlet 42 and a second air outlet 43, and the second air inlet 42 is connected with the first air outlet 23 through a pipeline; a swirl region 44 is arranged in the tower 41 at a position where the second air inlet 43 is connected, and the exhaust gas passing through the swirl region 44 rises toward the top of the tower in a swirl manner; the first shower unit is provided in the tower 41 and is disposed directly above the swirling area 44, and the first shower unit sprays the washing water into the tower 41 through the first shower head 45.
The second air inlet 42 is arranged at the lower part of one side of the tower 41, and the second air outlet 43 is arranged at the top of the tower 41; a mist removing layer 46 is disposed in the tower 41 near the second air outlet 43, a spraying area is disposed between the mist removing layer 46 and the vortex area 44 along the flow direction of the air in the tower 41, a plurality of groups of first spraying components are disposed in the spraying area along the flow direction of the air, and a thin film layer 49 is disposed between the two groups of first spraying components along the flow direction of the air.
The vortex spray tower 4 internally forms vortex type tornado water in the tower body 41 by utilizing wind power and water flowing rotational flow, all particles and smoke entering the tower body 41 are cleaned and adsorbed once through the tornado water vortex, the dust settling effect is obvious, the operation efficiency of the whole system is improved, and the problem of blockage in all pipelines in the whole system is solved.
The bottom of the tower 41 is provided with a waste outlet 47, the waste outlet 47 is connected with a waste discharge box 48 through an external pipeline, and the waste discharge box 48 is connected with a water supply box of the first spray assembly through a water tank with a valve. The spray water recycling can reduce the energy consumption of the treatment system.
3. Wet electrostatic adsorbing device 6
As shown in fig. 5, the wet electrostatic adsorbing apparatus 6 includes an electrostatic adsorbing chamber 61 and a second shower assembly, wherein the electrostatic adsorbing chamber 61 is provided with a third air inlet 62 and a third air outlet 63, and the third air inlet 62 is connected to the second air outlet 43 through a pipe; the electrostatic adsorption chamber 61 is provided with a honeycomb-shaped arranged pipe body 64, one end of each pipe body 64 is communicated with the third air inlet 62, the other end of each pipe body 64 is communicated with the third air outlet 63, a discharge needle 65 with a saw-tooth structure is arranged in each pipe body 64, and the discharge needles 65 are connected with a power supply device; the second spray assembly sprays the washing water into each pipe 64 through the second spray header 66.
In the technical solution of this embodiment, in order to improve the effect of electrostatic adsorption, the electrostatic adsorption device is at least configured with two electrostatic adsorption chambers 61, one end of each tube 64 in the first stage electrostatic adsorption chamber 61 is communicated with the third air inlet 62, the other end is communicated with one end of each tube 64 in the next stage electrostatic adsorption chamber 61, and the end of each tube 64 in the last stage electrostatic adsorption chamber 61 is communicated with the third air outlet 63; each pipe 64 in the electrostatic adsorbing chamber 61 extends in the vertical direction, and the gas moves in an S-shape in the pipe 64 of the adjacent two-stage electrostatic adsorbing chamber 61; the inner wall of each tube 64 in the electrostatic adsorbing chamber 61 is coated with a coating layer.
The smoke and dust waste gas enters each pipe body 64 of the electrostatic adsorption chamber 61 after the dust concentration is reduced by high-efficiency vortex washing treatment, the high-voltage discharge needle in the pipe body 64 discharges to break down the smoke and dust waste gas into positive and negative ions, and then flows through an electrostatic field to be absorbed and captured by static electricity, so that the smoke and dust waste gas purifying effect is achieved immediately, the black smoke purifying efficiency is as high as 99%)! The flue gas belongs to ultrafine particle dust, the continuous normal operation of general bag-type dust collecting equipment can not be guaranteed, electric dust collection can carry out electrolytic separation and electrostatic adsorption on the flue gas with different working conditions and dust and waste gas with the power supply discharge of less than or equal to 0.001 um.
Compared with a traditional steel wire, the discharge needle with the zigzag structure can ensure that the discharge quantity achieves the best effect. On the other hand, coating the inner wall of the tube 64 with a coating layer, preferably teflon, can enhance its adsorption effect.
4. The deodorizing device 7
The deodorizing device 7 includes a deodorizing chamber 71, wherein the deodorizing chamber 71 is provided with a fourth air inlet 72 and a fourth air outlet 73, and the fourth air inlet 72 is connected to the third air outlet 63 through a pipe; one or a combination of a plurality of UV light-releasing deodorizing components 8, plasma deodorizing components 9 and active carbon deodorizing components 10 are arranged in the deodorizing chamber 71;
specifically, as shown in fig. 6, the UV photolytic deodorization assembly 8 includes a photolytic tank 87, and a first air inlet 81 and a first air outlet 82 are respectively disposed at two ends of the photolytic tank 87 along the length extension direction thereof; a filter cotton layer 83 is disposed in the photodecomposition box 87 near the first air inlet 81; a plurality of UV photolysis lamp tube groups 84 are sequentially arranged in the photolysis tank 87 along the airflow flowing direction, each UV photolysis lamp tube group 84 is provided with a plurality of UV photolysis lamp tubes 85 sequentially arranged along the direction perpendicular to the airflow flowing direction, and the UV photolysis lamp tubes 85 of two adjacent UV photolysis lamp tube groups 84 are alternately staggered; a titanium dioxide ply 86 is disposed between adjacent UV photolytic lamp tube assemblies 84.
The filter cotton layer 83 at the inlet of the photodecomposition box 87 can effectively filter large impurities, and is of a drawer type structure, so that the photodecomposition box is convenient to replace regularly; the titanium dioxide sheet layer 86 installed between the adjacent two UV photolysis lamp tube groups 84 can improve oxidation and thus deodorization efficiency. The titanium dioxide ply 86 is of a drawer type structure and is convenient to replace periodically. The UV photolysis lamps 85 of the adjacent two UV photolysis lamp tube groups 84 are alternately staggered, so that gas is ensured to move in the interior according to the S shape, and the irradiation effect of the UV photolysis lamps on waste gas is improved.
The UV photolysis deodorization assembly 8 irradiates malodorous gas by utilizing an ultraviolet light beam generated by the UV photolysis lamp tube, cracks the malodorous gas, can efficiently remove main pollutants such as Volatile Organic Compounds (VOCs), inorganic matters, hydrogen sulfide, ammonia, thiols and the like, and various malodorous gases, on one hand, the components of oxygen in the air can be split under the action of high-energy ultraviolet rays, then ozone is generated through combination, and on the other hand, chemical bonds in the malodorous gas can be cracked to form free atoms and groups, and meanwhile, the generated ozone participates in the reaction process. The UV photolysis lamp tube can emit ultraviolet light with wavelengths of 185nm and 254nm, and the ultraviolet light with the wavelength of 254nm can be used for the sterilizing treatment of the oxidant. Ozone is reduced into oxygen under irradiation of ultraviolet rays with wavelength of 254nm, O3+254 nm- & gtO2+O can directly photolyze water and oxygen in the air, and high-grade oxidants such as hydroxyl free radicals, ozone and the like are generated for oxidation removal, so that the deodorizing effect is achieved
As shown in fig. 7, the plasma deodorizing assembly 9 includes a plasma chamber 91, and a second air inlet 92 and a second air outlet 93 are respectively disposed at both ends of the plasma chamber 91 along the length extension direction thereof; a filter cotton layer 83 is disposed in the plasma chamber 91 near the second air inlet 92; a plurality of plasma plates 94 are sequentially provided in the plasma chamber 91 along the flow direction of the air flow, and the titanium dioxide sheet layer 86 is disposed between two adjacent plasma plates 94.
The cotton filter layer 83 at the inlet of the plasma tank 91 can effectively filter large impurities, and is of a drawer type structure, so that the filter cotton filter can be replaced regularly. The arrangement of the titanium dioxide sheet layer 86 between two adjacent plasma plates 94 can enhance the oxidation and thus the deodorizing efficiency. The titanium dioxide ply 86 is of a drawer type structure and is convenient to replace periodically.
As shown in fig. 8, the activated carbon deodorizing module 10 includes an activated carbon adsorption case 101, and a third air inlet 102 and a third air outlet 103 are respectively disposed at both ends of the activated carbon adsorption case 101 along the length extension direction thereof; a third separator 104 and a fourth separator 105 are sequentially arranged in the activated carbon adsorption tank 101 along the airflow direction, communication ports 107 are formed in the third separator 104 and the fourth separator 105, and the third separator 104 and the fourth separator 105 divide the internal space of the activated carbon adsorption tank 101 into a first adsorption chamber 109, a second adsorption chamber 110 and a third adsorption chamber 111 which are respectively communicated through the two communication ports 107; a first activated carbon adsorbent bed 112 is mounted on the third separator 104 around the communication port 107, the first activated carbon adsorbent bed 112 extending toward the first adsorption chamber 109 and having an end portion extending toward the first adsorption chamber 109 mounted on the fifth separator 106; a second activated carbon adsorbent bed 113 is attached to the fifth separator 106 around the communication port 107, and the second activated carbon adsorbent bed 113 extends toward the third adsorption chamber 110, and an end portion extending toward the third adsorption chamber 110 is attached to the sixth separator 108.
The microporous structures of the first activated carbon adsorption bed 112 and the second activated carbon adsorption bed 113 adsorb the organic exhaust gas to achieve the effect of adsorption deodorization. In this application, the third separator 104, the fourth separator 105, the fifth separator 106 and the sixth separator 108 installed inside the activated carbon adsorption tank 101 separate the inside space of the activated carbon adsorption tank 101 into a plurality of adsorption chambers which are mutually communicated with each other, and in the case that the activated carbon adsorption tank 101 has the same volume and the first activated carbon adsorption bed 112 and the second activated carbon adsorption bed 113 have the same volume, on one hand, the residence time of the exhaust gas in the activated carbon adsorption tank 101 can be prolonged, the deodorizing and dust-reducing effects are improved, and on the other hand, all the exhaust gas introduced into the activated carbon adsorption tank 101 is subjected to the adsorption treatment of the first activated carbon adsorption bed 112 and the second activated carbon adsorption bed 113, so as to further improve the adsorption and dust-reducing effects. For example, in the conventional activated carbon adsorption tank 101, a plurality of activated carbon adsorption beds are sequentially arranged along the flow direction of the air flow, and the exhaust gas passes through the activated carbon adsorption beds in a straight-through manner. In this application, the exhaust gas moves to the air outlet 6 along the "S" shape in the activated carbon adsorption tank 101 (specific moving path is shown by the dotted line with arrow in fig. 8), and the moving path of the exhaust gas becomes long, so that the deodorizing and dust-settling effects of the exhaust gas can be greatly improved. Wherein, the first activated carbon adsorption bed 112 and the second activated carbon adsorption bed 113 both adopt a drawing type structure, which is convenient for periodic replacement.
The treatment system has the advantages of small resistance, high efficiency, safety, reliability, no blockage and no ignition, and is particularly easy to cause the phenomenon of pipe ignition in the plastic-wood product industry, and many domestic enterprises are plagued for over ten years.
Meanwhile, the method can effectively treat the atmospheric pollutants such as particles, smoke and the like generated in the plastic-wood material processing, improve the environment, especially improve the treatment of smoke and smell by more than 90%, and improve the treatment efficiency from 30% -50% in the prior art to more than 90%. Particularly obvious is that the smoke concentration is directly and obviously reduced by naked eyes, the odor is reduced along with the reduction, and the odor can not fly into the atmosphere along with the smoke. The odor problem in the industry has been plagued for many years, and enterprises can be complained by local residents or enterprise staff for many times, and in more than ten years, no method is provided for solving the odor problem.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (5)
1. An environmental protection treatment system for wood-plastic particle waste gas, which is characterized in that: comprises an atomization dust fall device, a spray vortex tower, a wet electrostatic adsorption device, a deodorizing device and a fan which are sequentially arranged;
the atomization dust falling device comprises a dust falling chamber and an atomization assembly, wherein the dust falling chamber is provided with a first air inlet and a first air outlet; the atomization component is provided with a steam fog generator and a steam fog spray head, the steam fog spray head is arranged in the dust settling chamber, and the atomization component sprays steam fog into the dust settling chamber through the steam fog spray head;
the spray vortex tower comprises a tower body and a first spray assembly, wherein the tower body is provided with a second air inlet and a second air outlet, and the second air inlet is connected with the first air outlet through a pipeline; a vortex area is arranged at the position, connected with the second air inlet, in the tower body, and waste gas passing through the vortex area ascends to the top of the tower body in a vortex mode; the first spraying assembly is arranged in the tower body and is arranged right above the vortex area, and the first spraying assembly sprays washing water into the tower body through a first spraying head;
the wet electrostatic adsorption device comprises an electrostatic adsorption chamber and a second spray assembly, wherein the electrostatic adsorption chamber is provided with a third air inlet and a third air outlet, and the third air inlet is connected with the second air outlet through a pipeline; the electrostatic adsorption chamber is internally provided with honeycomb-shaped arranged pipe bodies, one end of each pipe body is communicated with a third air inlet, the other end of each pipe body is communicated with a third air outlet, discharge needles with saw-tooth structures are arranged in each pipe body, and the discharge needles are connected with a power supply device; the second spray assembly sprays washing water into each pipe body through a second spray header;
the deodorizing device comprises a deodorizing chamber, wherein the deodorizing chamber is provided with a fourth air inlet and a fourth air outlet, and the fourth air inlet is connected with the third air outlet through a pipeline; the deodorizing chamber is internally provided with one or a combination of a plurality of UV photolysis deodorizing components, a plasma deodorizing component and an active carbon deodorizing component;
the fan guides and drives waste gas to be treated to enter from the first air inlet and then pass through the atomization dust settling device, the spray vortex tower, the wet electrostatic adsorption device and the deodorizing device in sequence for treatment and then are discharged from the fourth air outlet;
a first separator or/and a second separator are arranged in the dust settling chamber, one end of the first separator, which extends vertically, is fixed at the middle upper part of the dust settling chamber, and a first communication port is formed between the other end of the first separator and the bottom of the dust settling chamber; one end of the second separator, which extends vertically, is fixed at the middle lower part of the dust fall chamber, and a second communication port is formed between the other end of the second separator and the top of the dust fall chamber; the first separator and the second separator divide the dust fall chamber into a plurality of dust fall chambers communicated through a first communication port or a second communication port;
the second air inlet is arranged at the lower part of one side of the tower body, and the second air outlet is arranged at the top of the tower body; a defogging layer is arranged at a position, close to a second air outlet, in the tower body, and a spraying area is arranged between the defogging layer and the vortex area along the flow direction of the air in the tower body, a plurality of groups of first spraying assemblies are arranged in the spraying area along the flow direction of the air, and an diarrhea ring layer is arranged between every two first spraying assemblies along the flow direction of the air;
the UV photodecomposition deodorization assembly comprises a photodecomposition box, wherein a first air inlet and a first air outlet are respectively arranged at two ends of the photodecomposition box along the length extension direction of the photodecomposition box; a filter cotton layer is arranged in the photolysis tank close to the first air inlet; a plurality of UV photolysis lamp tube groups are sequentially arranged in the photolysis box along the airflow flowing direction, each UV photolysis lamp tube group is provided with a plurality of UV photolysis lamp tubes which are sequentially arranged along the direction perpendicular to the airflow flowing direction, and the UV photolysis lamp tubes of two adjacent UV photolysis lamp tube groups are alternately staggered and installed; titanium dioxide plate layers are arranged between two adjacent UV photolysis lamp tube groups;
the plasma deodorizing component comprises a plasma box, wherein the two ends of the plasma box along the length extending direction of the plasma box are respectively provided with a second air inlet and a second air outlet; a filter cotton layer is arranged in the plasma box close to the second air inlet; a plurality of plasma plates are sequentially arranged in the plasma box along the airflow direction, and a titanium dioxide plate layer is arranged between every two adjacent plasma plates;
the activated carbon deodorizing component comprises an activated carbon adsorption box, and a third air inlet and a third air outlet are respectively arranged at two ends of the activated carbon adsorption box along the length extension direction of the activated carbon adsorption box; a third separator and a fourth separator are sequentially arranged in the activated carbon adsorption box along the airflow flowing direction, communication ports are formed in the third separator and the fourth separator, and the third separator and the fourth separator divide the internal space of the activated carbon adsorption box into a first adsorption chamber, a second adsorption chamber and a third adsorption chamber which are respectively communicated through the two communication ports; a first activated carbon adsorption bed is arranged on the third separator around the communication port of the third separator, the first activated carbon adsorption bed extends to the first adsorption chamber, and the end part extending to the first adsorption chamber is arranged on the fifth separator; and a second activated carbon adsorption bed is arranged on the fifth separator around the communication port of the fifth separator, the second activated carbon adsorption bed extends to the third adsorption chamber, and the end part of the second activated carbon adsorption bed extending to the third adsorption chamber is arranged on the sixth separator.
2. The wood-plastic pellet exhaust gas environmental protection treatment system of claim 1, wherein: the steam fog generator comprises a water tank and a conveying pipeline, the conveying pipeline is connected with the water tank, the conveying pipeline extends to each dust fall cavity, and a pipeline booster pump and a pressure regulating valve are arranged on the conveying pipeline; the steam spray nozzle is arranged on the conveying pipeline, and water in the conveying pipeline is sprayed out through the steam spray nozzle to form a steam fog state.
3. The wood-plastic pellet exhaust gas environmental protection treatment system of claim 1, wherein: the bottom of the tower body is provided with a waste discharge port, the waste discharge port is connected with a waste discharge box through an external pipeline, and the waste discharge box is connected with a water supply box of the first spraying assembly through a water tank with a valve.
4. The wood-plastic pellet exhaust gas environmental protection treatment system of claim 1, wherein: the electrostatic adsorption device is at least provided with two electrostatic adsorption chambers, one end of each pipe body in the first stage electrostatic adsorption chamber is communicated with the third air inlet, the other end of each pipe body in the next stage electrostatic adsorption chamber is communicated with one end of each pipe body in the last stage electrostatic adsorption chamber, and the tail end of each pipe body in the last stage electrostatic adsorption chamber is communicated with the third air outlet; the inner wall of each pipe body in the electrostatic adsorption chamber is coated with a coating layer.
5. The wood-plastic pellet exhaust gas environmental protection treatment system of claim 4, wherein: each pipe body in the electrostatic adsorption chamber extends along the vertical direction, and gas moves in an S shape in the pipe bodies of the adjacent two-stage electrostatic adsorption chambers.
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| CN110280091A (en) * | 2019-06-27 | 2019-09-27 | 苏州蓝正清环保科技有限公司 | Photooxidation catalytic unit |
| CN110314512A (en) * | 2019-07-19 | 2019-10-11 | 广东创智智能装备有限公司 | A kind of exhaust treatment system |
| CN110604993A (en) * | 2019-09-27 | 2019-12-24 | 上海华闵环境科技发展有限公司 | Plastic granulation waste gas treatment system and treatment method |
| CN110898591B (en) * | 2019-12-04 | 2022-03-15 | 常州天衍环境科技有限公司 | Acid gas purification treatment equipment and treatment process |
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