CN108525497A - A kind of emission-control equipment and method of plastic granulator workshop - Google Patents

A kind of emission-control equipment and method of plastic granulator workshop Download PDF

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Publication number
CN108525497A
CN108525497A CN201810402604.7A CN201810402604A CN108525497A CN 108525497 A CN108525497 A CN 108525497A CN 201810402604 A CN201810402604 A CN 201810402604A CN 108525497 A CN108525497 A CN 108525497A
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China
Prior art keywords
workshop
entrance
washing
emission
plastic granulator
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Pending
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CN201810402604.7A
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Chinese (zh)
Inventor
李云飞
刘裕聪
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Guangzhou Purple Cape Environmental Protection Technology Co Ltd
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Guangzhou Purple Cape Environmental Protection Technology Co Ltd
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Priority to CN201810402604.7A priority Critical patent/CN108525497A/en
Publication of CN108525497A publication Critical patent/CN108525497A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/007Separation 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 irradiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/32Separation 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 electrical effects other than those provided for in group B01D61/00
    • B01D53/323Separation 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 electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8678Removing components of undefined structure
    • B01D53/8687Organic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/10Oxidants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/80Type of catalytic reaction
    • B01D2255/802Photocatalytic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/90Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/812Electrons

Abstract

The invention discloses a kind of emission-control equipments of plastic granulator workshop, including wet scrubber tower, oil fume purifier and photocatalysis apparatus;Wet scrubber tower is equipped with washing entrance and washing exports, oil fume purifier is equipped with purification entrance and purge outlet, photocatalysis apparatus is equipped with catalysis entrance and catalysis exports, the washing entrance of wet scrubber tower is connected with gas sampling cover, washing outlet is connect with the purification entrance of oil fume purifier, the catalysis entrance of purge outlet and photocatalysis apparatus connects, and catalysis outlet is connected with exhaust duct.The present invention also provides a kind of waste gas processing methods of plastic granulator workshop.The emission-control equipment of the plastic granulator workshop of the present invention includes wet scrubber tower, oil fume purifier and photocatalysis apparatus, while increasing peculiar smell exhaust purification efficiency, strong shock resistance, it is stable, simple and convenient operation and maintenance, once invest moderate, operating cost is low, and will not increase that secondary pollution, facility compact floor space is small, energy consumption is small.

Description

A kind of emission-control equipment and method of plastic granulator workshop
Technical field
The present invention relates to the emission-control equipments and side of exhaust-gas treatment field more particularly to a kind of plastic granulator workshop Method.
Background technology
Since plastic granulator Workshop Production exhaust gas constituents are complicated, fluctuation is big, and peculiar smell intensity is high, and now some eliminates the unusual smell in the market Technology mainly has absorption process, absorption method, ion deodorization method, photocatalysis, Production by Catalytic Combustion Process, microbial degradation method, covers worn-out method, ozone Method etc.;At present for peculiar smell exhaust gas caused by plastic granulator workshop, mainly pass through water spray washing process and activated carbon work Skill handles peculiar smell exhaust gas, but this process effect unobvious, and activated carbon is inhaled and is easy attached saturation, and activated carbon is full It is reduced with efficiency of post treatment, exhaust gas concentration discharge is caused to increase, influence regulation effect, the serious week for influencing exhaust gas blowdown stack The health of surrounding environment and nearby residents.
Invention content
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of plastic granulator workshops Emission-control equipment, the processing unit include wet scrubber tower, oil fume purifier and photocatalysis apparatus, and increasing, peculiar smell exhaust gas is net While changing efficiency, strong shock resistance is stable, simple and convenient operation and maintenance, once invests moderate, and operating cost is low, and not It can increase that secondary pollution, facility compact floor space is small, energy consumption is small.
The second object of the present invention is to provide a kind of waste gas processing method of plastic granulator workshop, and this method is to life After the gas sampling for producing workshop, exhaust gas is handled by emission-control equipment, also adds purifying step, deodorising step to modeling Glue granulation workshop generates exhaust gas and carries out purified treatment, and the gas that it is discharged is made to reach discharging standards, and life is ensured to play The effect of the health and environmental protection of production personnel.
An object of the present invention adopts the following technical scheme that realization:
A kind of emission-control equipment of plastic granulator workshop, including wet scrubber tower, oil fume purifier and photocatalysis Device;The wet scrubber tower is equipped with washing entrance and washing exports, and the oil fume purifier is equipped with purification entrance and purifies Mouthful, the photocatalysis apparatus is equipped with catalysis entrance and catalysis exports, and the washing entrance of the wet scrubber tower is connected with exhaust gas receipts Collection cover, the washing outlet are connect with the purification entrance of oil fume purifier, and the catalysis of the purge outlet and photocatalysis apparatus enters Mouth connection, the catalysis outlet are connected with exhaust duct.
Further, it is equipped with spray thrower in the wet scrubber tower, reflux is provided with outside the wet scrubber tower;Institute It includes water inlet pipe, cyclic water tank, outlet pipe and circulating pump to state reflux, and one end of the cyclic water tank connects water inlet pipe, institute The bottom that water inlet pipe is connected to wet scrubber tower is stated, the other end of the cyclic water tank connects outlet pipe, the outlet pipe connection On spray thrower, the circulating pump is arranged on outlet pipe.
Further, the washing entrance setting of the wet scrubber tower is arranged in bottom of tower, the washing outlet in tower top.
Further, the washing exit of the wet scrubber tower is equipped with dehydration and removes wet layer.
Further, cathode and anode are equipped in the oil fume purifier, cathode and anode form high-voltage electrostatic field.
Further, nickel foam substrate and electron excitation lamp are equipped in the photocatalysis apparatus, on the nickel foam substrate Load has photocatalyst material.
Further, the wavelength of the electron excitation lamp is 390-450nm;The photocatalyst material is nano-TiO2
Further, it is connected with centrifugal blower between the photocatalysis apparatus and exhaust duct.
Further, it is connected with odor controller between the photocatalysis apparatus and centrifugal blower.
The second object of the present invention adopts the following technical scheme that realization:
A kind of waste gas processing method of plastic granulator workshop, including,
Spraying step:The exhaust gas of plastic granulating workshop discharge is after the unified collection of gas sampling cover, from wet scrubbing The washing entrance of tower enters in tower, and exhaust gas is come into full contact with hydro-peening liquid using water-washing method, then flows through packing layer and absorbs, inhales It is attached, then wet layer is removed by dehydration, obtain coagulation gas;
Purifying step:Coagulation gas enters oil fume purifier, flows through internal high pressure electrostatic field, coagulation gas electricity Become positive and negative ion from ejected electron, obtains two stage treatment gas;
Photocatalysis step:Two stage treatment gas enters photocatalysis apparatus, the Strong oxdiative generated in photocatalysis apparatus restore from Organic exhaust gas oxygenolysis is obtained tertiary treatment gas by son group;
Deodorising step:Tertiary treatment gas draws maximum discharge after odor controller deodorization, from exhaust duct.
Compared with prior art, the beneficial effects of the present invention are:
(1) emission-control equipment of plastic granulator workshop of the present invention, the processing unit include wet scrubber tower, oil smoke Clarifier and photocatalysis apparatus, while increasing peculiar smell exhaust purification efficiency, strong shock resistance is stable, operation dimension Shield is easy, once invests moderate, and operating cost is low, and will not increase that secondary pollution, facility compact floor space is small, energy consumption is small;
(2) waste gas processing method of plastic granulator workshop of the present invention, after this method is to the gas sampling of workshop, Exhaust gas is handled by emission-control equipment, also adds purifying step, deodorising step generates exhaust gas to plastic granulator workshop Purified treatment is carried out, the gas that it is discharged is made to reach discharging standards, to play the health and the protection that ensure producers The effect of environment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the emission-control equipment of the plastic granulator workshop of the present invention.
In figure:1, wet scrubber tower;11, entrance is washed;12, washing outlet;2, oil fume purifier;21, entrance is purified; 22, purge outlet;3, photocatalysis apparatus;31, it is catalyzed entrance;32, catalysis outlet;4, gas sampling cover;5, exhaust duct;6, it flows back Device;61, water inlet pipe;62, cyclic water tank;63, outlet pipe;64, circulating pump;7, dehydration removes wet layer;8, centrifugal blower;9, peculiar smell Controller.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination Example.
Referring to Fig.1, a kind of emission-control equipment of plastic granulator workshop, including wet scrubber tower 1, oil fume purifier 2 and photocatalysis apparatus 3;Wet scrubber tower 1 is equipped with washing entrance 11 and washing outlet 12, and oil fume purifier 2 is equipped with purification entrance 21 and purge outlet 22, photocatalysis apparatus 3 is equipped with catalysis entrance 31 and catalysis outlet 32, the washing entrance 11 of wet scrubber tower 1 It is connected with gas sampling cover 4, washing outlet 12 is connect with the purification entrance 21 of oil fume purifier 2, purge outlet 22 and photocatalysis The catalysis entrance 31 of device 3 connects, and catalysis outlet 32 is connected with exhaust duct 5.
It is equipped with spray thrower (not shown) in wet scrubber tower 1, reflux 6 is provided with outside wet scrubber tower 1;Reflux 6 include water inlet pipe 61, cyclic water tank 62, outlet pipe 63 and circulating pump 64, and one end of cyclic water tank 62 connects water inlet pipe 61, water inlet Pipe 61 is connected to the bottom of wet scrubber tower 1, and the other end of cyclic water tank 62 connects outlet pipe 63, and outlet pipe 63 is connected to spray On device, circulating pump 64 is arranged on outlet pipe 63.
The setting of washing entrance 11 of wet scrubber tower 1 in bottom of tower, 12 setting of washing outlet in tower top, be arranged in this way be in order to Dusty gas is entered by 1 lower part of wet scrubber tower, and bottom-up flowing makes exhaust gas and cleaning solution counter current contacting, using grit and The contact-impact of water droplet and agglomerate or grit between reunite, so that its weight is greatly increased, gravity depend on to settle down.
It is equipped with dehydration at the washing outlet 12 of wet scrubber tower 1 and removes wet layer 7, dehydration is to exhaust gas except 7 main function of wet layer Water mist molecule handled, with harmful chemicals gas in Adsorption exhaust gas, reduce the pressure of back-end processing and improve exhaust gas Treatment effeciency.
Cathode and anode (not shown) are equipped in oil fume purifier 2, cathode and anode form high-voltage electrostatic field, and exhaust gas passes through Each electric field for differing greatly of radius of curvature, and when electric field strength is sufficiently high, the stubborn body ion near electrode surface will occur Avalanche effect, recombination process is especially fierce, and the distance between two electrode surfaces will gradually increase, with the spacing of two electrode surfaces From increase, electric field strength declines rapidly, and ion movement speed slows down, and exhaust gas space is unlikely to breakdown and causes entire space Breakdown, in high pressure ionization area, non-uniform electric field causes corona discharge.
Nickel foam substrate and electron excitation lamp are equipped in photocatalysis apparatus 3, being loaded on nickel foam substrate has photocatalyst material. The wavelength of electron excitation lamp is 390-450nm;Photocatalyst material is nano-TiO2, nano-TiO2The organic contamination in degrading waste water Object, removal have broad application prospects in terms of being harmful to inorganic gas and air purification, can quickly and effectively decomposing organic matter.
Centrifugal blower 8 is connected between photocatalysis apparatus 3 and exhaust duct 5.Connect between photocatalysis apparatus 3 and centrifugal blower 8 It is connected to odor controller 9.
The emission-control equipment of plastic granulator workshop of the present invention, the processing unit include that wet scrubber tower 1, oil smoke are net Change device 2 and photocatalysis apparatus 3, while increasing peculiar smell exhaust purification efficiency, strong shock resistance is stable, operation dimension Shield is easy, once invests moderate, and operating cost is low, and will not increase that secondary pollution, facility compact floor space is small, energy consumption is small.
The waste gas processing method of plastic granulator workshop of the present invention, including,
Spraying step:The exhaust gas of plastic granulating workshop discharge is after the unified collection of gas sampling cover 4, from wet scrubbing The washing entrance 11 of tower 1 enters in tower, and exhaust gas is come into full contact with hydro-peening liquid using water-washing method, packing layer is equipped in tower, then Flow through packing layer absorption and sorption, cleaning solution is NEW BIO-C deodorant liquids, NEW BIO-C deodorant liquids in tower by packing layer with Emission molecule comes into full contact with reaction, and gas with foreign flavor comes into full contact with New Bio-C deodorant liquids, the stench particle in air or in water It is surrounded by hydrone envelope, deodorization at this time must first destroy hydrone envelope, then stench particle therein is caught Catch decomposition;It, will be cotton-shaped in exhaust gas to achieve the effect that remove wet layer 7 for the water-soluble Litter matter of purification, then by dehydration Object intercepts, and will handle the moisture in exhaust gas, obtains coagulation gas;
Purifying step:Coagulation gas enters oil fume purifier 2, flows through internal high pressure electrostatic field, coagulation gas It ionizes ejected electron and becomes positive and negative ion, the gas electric field that each differs greatly by radius of curvature, and electric field strength is enough Avalanche effect will occur in Gao Shi, the stubborn body ion near electrode surface, and recombination process is especially fierce, between two electrode surfaces Distance will gradually increase, and with the increase of distance between two electrode surfaces, electric field strength declines rapidly, and ion movement speed subtracts Slowly, the gas compartment is unlikely to breakdown and entire space is caused to puncture, and in high pressure ionization area, non-uniform electric field causes corona to be put Electricity obtains two stage treatment gas;
Photocatalysis step:Two stage treatment gas enters photocatalysis apparatus 3, photochemical catalyst TiO2Its electronic structure feature is one A full valence band and an empty conduction band, under the illumination condition of electron excitation lamp, electronics can be from valence to conduction band shape At free electron, and a positively charged hole is formed in valence band, forms electron hole pair;
TiO2+hυ→(TiO2)h++(TiO2)e-
Valence band hole is good oxidant, and conduction band electron is good reducing agent.Hole generally with the H of adsorption2O Or OH-Ionic reaction forms the activity hydroxy (OH) with strong oxidizing property
h++H2O→·OH+H+
h++OH-→·OH
Electronics then with the oxygen molecule (O of adsorption2) reaction, generate superoxide ion (O2 -).Superoxide ion can with water into Single step reaction generates perhydroxyl radical (OOH) and hydrogen peroxide (H2O2)
e-+O2→·O2 -
·O2 -+H2O→·OOH+OH-
2·OOH→H2O2+O2
·OOH+H2O+e-→H2O2+OH-
H2O2+e-→·OH+OH-
TiO2Photochemical catalytic oxidation is activity hydroxy (OH) and other active oxidation substances (O2-, OOH, H2O2) altogether The result of same-action;In TiO2The OH group reactivities of Surface Creation are very high, have higher than all kinds of chemical bonds in organic matter The reaction energy of energy, in addition O2 -, OOH, H2O2The synergistic effect of active oxidation substance can be decomposed quickly and effectively organic Object obtains tertiary treatment gas;
Deodorising step:Tertiary treatment gas draws maximum discharge after 9 deodorization of odor controller, from exhaust duct 5.
The waste gas processing method of plastic granulator workshop of the present invention after this method is to the gas sampling of workshop, gives up Gas is handled by emission-control equipment, also add purifying step, deodorising step to plastic granulator workshop generate exhaust gas into Row purified treatment makes the gas that it is discharged reach discharging standards, to play the health and protection ring that ensure producers The effect in border.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto, The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention Claimed range.

Claims (10)

1. a kind of emission-control equipment of plastic granulator workshop, which is characterized in that including wet scrubber tower, oil fume purifier And photocatalysis apparatus;The wet scrubber tower is equipped with washing entrance and washing exports, and the oil fume purifier is equipped with purification entrance And purge outlet, the photocatalysis apparatus is equipped with catalysis entrance and catalysis exports, the washing entrance connection of the wet scrubber tower There are gas sampling cover, the washing outlet to be connect with the purification entrance of oil fume purifier, the purge outlet and photocatalysis apparatus The connection of catalysis entrance, the catalysis exports and is connected with exhaust duct.
2. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the wet scrubbing It is equipped with spray thrower in tower, reflux is provided with outside the wet scrubber tower;The reflux includes water inlet pipe, recirculated water One end of case, outlet pipe and circulating pump, the cyclic water tank connects water inlet pipe, and the water inlet pipe is connected to the bottom of wet scrubber tower The other end in portion, the cyclic water tank connects outlet pipe, and the outlet pipe is connected on spray thrower, and the circulating pump setting is going out On water pipe.
3. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the wet scrubbing The washing entrance setting of tower is arranged in bottom of tower, the washing outlet in tower top.
4. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the wet scrubbing The washing exit of tower is equipped with dehydration and removes wet layer.
5. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the fume purifying Cathode and anode are equipped in device, cathode and anode form high-voltage electrostatic field.
6. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the photocatalysis dress Nickel foam substrate and electron excitation lamp are equipped in setting, being loaded on the nickel foam substrate has photocatalyst material.
7. the emission-control equipment of plastic granulator workshop as claimed in claim 6, which is characterized in that the electron excitation The wavelength of lamp is 390-450nm;The photocatalyst material is nano-TiO2
8. the emission-control equipment of plastic granulator workshop as described in claim 1, which is characterized in that the photocatalysis dress It sets and is connected with centrifugal blower between exhaust duct.
9. the emission-control equipment of plastic granulator workshop as claimed in claim 8, which is characterized in that the photocatalysis dress It sets and is connected with odor controller between centrifugal blower.
10. a kind of waste gas processing method of plastic granulator workshop, it is characterised in that including,
Spraying step:The exhaust gas of plastic granulating workshop discharge is after the unified collection of gas sampling cover, from wet scrubber tower Washing entrance enters in tower, and exhaust gas is come into full contact with hydro-peening liquid using water-washing method, and packing layer absorption and sorption is then flowed through, then Wet layer is removed by dehydration, obtains coagulation gas;
Purifying step:Coagulation gas enters oil fume purifier, flows through internal high pressure electrostatic field, and coagulation gas ionization is put Go out electronics and become positive and negative ion, obtains two stage treatment gas;
Photocatalysis step:Two stage treatment gas enters photocatalysis apparatus, the Strong oxdiative reduction ion cluster generated in photocatalysis apparatus By organic exhaust gas oxygenolysis, tertiary treatment gas is obtained;
Deodorising step:Tertiary treatment gas draws maximum discharge after odor controller deodorization, from exhaust duct.
CN201810402604.7A 2018-04-28 2018-04-28 A kind of emission-control equipment and method of plastic granulator workshop Pending CN108525497A (en)

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Application Number Priority Date Filing Date Title
CN201810402604.7A CN108525497A (en) 2018-04-28 2018-04-28 A kind of emission-control equipment and method of plastic granulator workshop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810402604.7A CN108525497A (en) 2018-04-28 2018-04-28 A kind of emission-control equipment and method of plastic granulator workshop

Publications (1)

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CN108525497A true CN108525497A (en) 2018-09-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772981A (en) * 2019-09-30 2020-02-11 广州紫科环保科技股份有限公司 Waste gas purification system for rubber tire
CN111037846A (en) * 2019-11-27 2020-04-21 安徽科创新能源科技有限责任公司 Processing and treating device for injection mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110772981A (en) * 2019-09-30 2020-02-11 广州紫科环保科技股份有限公司 Waste gas purification system for rubber tire
CN111037846A (en) * 2019-11-27 2020-04-21 安徽科创新能源科技有限责任公司 Processing and treating device for injection mold

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