CN103316560A - Spray paint organic solvent exhaust gas recovery device and organic solvent recovery method - Google Patents
Spray paint organic solvent exhaust gas recovery device and organic solvent recovery method Download PDFInfo
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- CN103316560A CN103316560A CN2013102973078A CN201310297307A CN103316560A CN 103316560 A CN103316560 A CN 103316560A CN 2013102973078 A CN2013102973078 A CN 2013102973078A CN 201310297307 A CN201310297307 A CN 201310297307A CN 103316560 A CN103316560 A CN 103316560A
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Abstract
The invention discloses a spray paint organic solvent exhaust gas recovery device and a method for recovering an organic solvent by the use of the device. The device provided by the invention comprises a paint mist removal device, a blower fan, an adsorption pot, a condenser and an oil-water separator which are connected in order. The paint mist removal device comprises an air collector which is used for temporary storage of organic solvent exhaust gas, a cyclone dust collector and a cloth bag deduster. The air collector, the cyclone dust collector and the cloth bag deduster are connected in order. According to the recovery device, parts are connected reasonably and compactly, dedusting efficiency is high, paint mist is efficiently removed, and the trouble of frequently replacing filter cotton is saved. The invention also discloses a method for recovering the organic solvent by the use of the device. The method successively comprises steps of: removal of the paint mist, adsorption, water vapour desorption, condensation and oil-water separation, wherein the paint mist removal step is to change the paint mist into a paint powder and effectively remove the paint powder. In comparison with the present technologies, the method provided by the invention is more reasonable and compact and is labor-saving.
Description
Technical field
The present invention relates to paint spraying organic solvent waste gas recovery technology field, be specifically related to a kind of device of paint spraying organic solvent waste gas recovery and utilize this device to reclaim the method for organic solvent.
Background technology
Lacquer spraying technique is widely used in the industries such as machinery, electrical equipment, household electrical appliances, automobile, boats and ships, furniture.Raw material sprays paint---and coating is comprised of non-volatile part and fugitive constituent, non-volatile part comprises film forming matter and auxiliary film forming matter, fugitive constituent refers to curing agent and diluent, diluent is a kind of in order to reduce resin viscosity, the liquid substance good with the resin compatibility that improves its processing performance and add, adding curing agent is the chemical stability that promotes paint rapid draing, increase adhesiveness and lacquer painting intensity, improves paint.Lacquer spraying waste gas is mainly formed by volatile curing agent, diluent molecule and nonvolatile coating cloud molecular mixing.Because small, the viscosity of coating cloud particle is large, easy coherent substance surface, purify and must remove coating cloud before reclaiming organic exhaust gas, traditional coating cloud removal method generally is divided into dry method, wet method dual mode.
What dry method adopted is the filtration, purification mode, and the paint spray booth forms negative pressure under the effect of mist cleaning system induced draft blower withdraws, and coating cloud is under suction function, be introduced into paint-fog filter, by filtering the filtering materials such as silk floss, filter plate, filter paper, filter liquid lacquer and drip, reach the purpose of removing coating cloud.But also there are some shortcomings, 1, because coating cloud viscosity is large, easily stick to the filter cotton surface, contain the increase of lacquer amount along with filter cotton, therefore exhaust resistance increases sharply, and must select high-head exhaust fan, and electrical power is multiplied, and operating cost improves greatly; 2, the filter cotton use of can't regenerating after inhaling full coating cloud can only be changed, and the filter cotton use amount is very large, and operating cost is surprising; 3, inhaling the filter cotton of the coating cloud of having satisfied can only landfill or burning disposal, forms secondary pollution, increases the expense of post processing; 4, filter efficiency is low, does not filter completely that the coating cloud granule easily stops up the active carbon hole, and active carbon easily lost efficacy; 5, the adsorption tanks utilization rate is not high, and the organic solvent rate of recovery is low.In addition, the method that traditional handicraft normal operation list tank adsorbs single tank desorption, the organic solvent rate of recovery is not high, another kind is just to have used the absorption of directly connecting of two adsorption tanks when just having adsorbed, need the equipment investments that increase, utilization rate of equipment and installations is not high, increases the equipment investment expense yet more.
It is treatment facility that wet method adopts Drencher spray booth, and the equipment front is the water curtain plate, is overflow launder above the water curtain plate, and water curtain plate back is the Multi-stage water screen filter.When spraying paint, the coating cloud that enters the paint spray booth at first meets with water curtain, is washed in the water tank.All the other coating clouds are intercepted in the water by the Multi-stage water screen filter time.Water in the water tank is overflowed on the water curtain plate and is formed water curtain by the overflow groove of water pump lifting to water curtain and Multi-stage water screen filter top.But also there are many shortcomings in this method, 1, along with the various places lack of water is day by day serious, water price goes up and the use problem of restricting water supply causes that its operating cost is higher 2, environmental regulation perfect, the sewage of discharging is also wanted purified treatment, also be a considerable operating cost, 3, water-washing process is actual is that humidity is high to the process of waste gas humidification, very large on adsorption effect of activated carbon in water impact, finally have influence on the organic efficiency of waste gas organic solvent.
Summary of the invention
The invention provides a kind of organic solvent waste gas recycling device, its purpose is to overcome that the demist efficient that prior art exists is low, the easy premature failure of active carbon and need often to change the defective such as filter pulp.Another object of the present invention is to provide a kind of organic solvent recovery method, thereby its purpose is efficiently to remove the utilization rate that coating cloud is beneficial to the recovery of organic solvent and improves adsorption tanks.
As follows in order to realize foregoing invention purpose technical scheme of the present invention:
A kind of paint spraying organic solvent waste gas recycling device comprises the coating cloud removal device, blower fan, adsorption tanks, condenser and the oil water separator that connect successively;
Described coating cloud removal device comprises air collector, cyclone dust collectors and the sack cleaner for temporary waste organic solvent gas;
The entrance of described air collector is connected with the waste organic solvent gas pipe of japanning room, and the outlet of air collector is connected with the entrance of cyclone dust collectors, and the outlet of cyclone dust collectors is connected with the entrance of sack cleaner, and the outlet of sack cleaner is connected with fans entrance.
The cavity that has a temporary waste organic solvent gas in the described air collector is equiped with deflection plate or spiral board or at air collector top dress venturi filter paper in the described cavity.
Described blower fan is centrifugal high pressure fan; Be separated with gripper shoe between in the described adsorption tanks, this gripper shoe top is filled with fibrous activated carbon, and this gripper shoe is under-filled corallite or renewable absorbent charcoal functional ceramic.
Described paint spraying organic solvent waste gas recycling device comprises at least two adsorption tanks, all be connected with organic exhaust gas on each adsorption tanks and enter pipe and organic exhaust gas arm, each organic exhaust gas enters on pipe and the organic exhaust gas arm valve is installed, it is parallel with one another that described organic exhaust gas enters pipe, and it all is connected in the outlet of blower fan; Described organic exhaust gas arm is parallel with one another.
Described paint spraying organic solvent waste gas recycling device also comprises automatic control system, each valve and oil water separator on described cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system, automatic control system is regulated the opening of each valve on the adsorption tanks, thereby corresponding adsorption tanks are adsorbed or desorption and regeneration in series or in parallel with each otherly.
A kind of method of utilizing aforementioned means to reclaim organic solvent, it is characterized in that: it may further comprise the steps successively, removes coating cloud, absorption, water vapour desorption, condensation and water-oil separating; Described removal coating cloud step comprises: waste organic solvent gas is temporary in makes it pre-air-dry and begin to take shape the lacquer powder in the air collector first, then enter air-dry in the cyclone dust collectors and form the lacquer powder again; The preliminary lacquer powder of removing enters at last again and removes the lacquer powder in the sack cleaner simultaneously.
By the above-mentioned description of this invention as can be known, be compared with existing technology, the invention has the advantages that:
1, paint spraying organic solvent waste gas recycling device of the present invention, use first air collector to carry out air-dry to coating cloud in advance, then utilize the pre-dedusting of cyclone dust collectors and further air-dry coating cloud powdering particle, carry out high efficiency through sack cleaner again and remove lacquer powder after air-dry, each parts of retracting device are connected rationally, compact, efficiency of dust collection is high, and have saved the trouble of frequent filter pulp in efficient removal coating cloud.
, the present invention fills the adsorption filtration of once coating with lacquer again powder when renewable corallite or renewable absorbent charcoal functional ceramic make organic exhaust gas enter charcoal absorption in adsorption tanks bottoms, prevent the sack cleaner dedusting thoroughly or the reason such as broken bag make the active carbon hole be coated with lacquer powder to stop up, thereby prolonged service life and the adsorption efficiency of active carbon.
, automatic control system regulates the opening of each valve on the adsorption tanks, thereby the mutual series and parallel of corresponding adsorption tanks ground adsorbed or desorption and regeneration.Utilize adsorption time long, the characteristics that the desorption and regeneration time is short can be carried out most tanks and be adsorbed simultaneously, and the minority tank carries out desorption and regeneration, avoid or reduce the idle time of desorption and regeneration tank, thereby improve the utilization rate of adsorption tanks.
, automatic control system of the present invention can adopt Single-chip Microprocessor Auto control, the man-machine interface operation can show the working condition with monitoring system in real time; According to different operating modes, system can design multiple tracks and automatically control security alarm and chain protection, makes whole flow operations simple, stable, safe and reliable.In addition, automatic control system can also be controlled the opening of each valve on the adsorption tanks, thereby regulates the annexation of each adsorption tanks, and adsorb without any confusion, reproduction operation.
Description of drawings
Fig. 1 is according to paint spraying organic solvent waste gas recycling device structural representation of the present invention.
The specific embodiment
The specific embodiment of the present invention is described with reference to the accompanying drawings.
With reference to Fig. 1, paint spraying organic solvent waste gas recycling device, comprise successively the air collector 1 that connects, cyclone dust collectors 2, sack cleaner 3, centrifugal high pressure fan 4, two adsorption tanks 51,52, condenser 6 and oil water separator 7, it comprises that also a cover is used for regulating and control the automatic control system (not shown in FIG.) of above-mentioned each parts.The entrance of air collector 1 is connected with the waste organic solvent gas pipe of japanning room (not shown in FIG.), and the outlet of air collector 1 is connected with the entrance of cyclone dust collectors 2; The outlet of cyclone dust collectors 2 is connected with the entrance of sack cleaner 3; The outlet of sack cleaner 3 is connected with centrifugal high pressure fan 4 entrances; The outlet of centrifugal high pressure fan 4 is connected with adsorption tanks 51,52 entrance simultaneously; Adsorption tanks 51,52 outlet all are connected in condenser 6 entrances; The outlet of condenser 6 is connected with oil water separator 7.
The cavity that has a temporary waste organic solvent gas in the air collector 1, can fill deflection plate or spiral board in this cavity or (these are prior art at air collector top dress venturi filter paper, its internal structure not shown in FIG.), to improve the air-dry speed of coating cloud.In addition, in order to obtain stronger absorption property, adsorption tanks 51, the 52 interior fibrous activated carbons that usually are filled with; For preventing that above-mentioned paint removal powder from thoroughly not making the lacquer powder stop up life-span and the adsorption effect that the active carbon hole affects active carbon, fill reproducible corallite or renewable absorbent charcoal functional ceramic in adsorption tanks 51,52 bottoms, the adsorption filtration of once coating with lacquer again powder when the microporosity of utilizing these fillers to exist makes organic exhaust gas enter charcoal absorption.In addition, above-mentioned cyclone dust collectors 2, sack cleaner 3, centrifugal high pressure fan 4, condenser 6 and oil water separator 7 are all comparatively common in the prior art, do not repeat them here.
Be separated with gripper shoe (not shown in FIG.) between in the adsorption tanks 51,52, this gripper shoe top is filled with fibrous activated carbon; This gripper shoe is under-filled corallite or renewable absorbent charcoal functional ceramic.All be connected with organic exhaust gas on the adsorption tanks 51,52 and enter pipe 511,521 and organic exhaust gas arm 512,522, organic exhaust gas enters on pipe 511,521 and the organic exhaust gas arm 512,522 valve 53 all is installed, it is parallel with one another that organic exhaust gas enters pipe 511,521, and it all is connected in the outlet of centrifugal high pressure fan 4; Organic exhaust gas arm 512,522 parallel with one another.During use, automatic control system is controlled to be shaped with the valve 53 that machine waste gas enters pipe 511,521 and to open, at this moment, adsorption tanks 51,52 parallel connections, organic exhaust gas enters adsorption tanks 51,52 absorption simultaneously; Automatic control system also can only enter organic exhaust gas the valve 53 that pipe 511 or organic exhaust gas enter pipe 521 and open, at this moment, adsorption tanks 51,52 series connection, organic exhaust gas successively enters adsorption tanks 51 or adsorption tanks 52 absorption.
Continuation is with reference to Fig. 1, a kind of method of utilizing above-mentioned paint spraying organic solvent waste gas recycling device to reclaim organic solvent, the organic exhaust gas that contains coating cloud that painting line comes out connects air collector 1 through the waste organic solvent gas pipe, because the cushioning effect in the cavity of air collector 1, the organic exhaust gas that contains coating cloud is done short stay at air collector 1, it is air-dry that coating cloud obtains the short time, reduces the short grained viscosity of coating cloud; The centrifugal force that air-dry exhaust organic gas containing paint mist of short time utilizes cyclone dust collectors 2 dust-contained airflows to rotate and produce by cyclone dust collectors 2, with coating cloud granule separation and collection from gas, remove the part initial stage at the air-dry lacquer powder of air collector 1, outside cyclone dust collectors 2, under the internal cyclone effect, the further air-dry lacquering powder of molecule in the fully not air-dry coating cloud also; The organic exhaust gas of initial stage except coating cloud enters sack cleaner 3, and the distinctive feature of utilizing 3 pairs of fine particles of sack cleaner to process is carried out high efficiency dedusting, and the deashing device (Fig. 1 does not show) of lacquer pruinescence bag-type dust equipment is processed; Very low by sack cleaner 3 waste organic solvent gas dust content out, this part waste organic solvent gas is sent into adsorption tanks 51 by centrifugal high pressure fan 4, waste organic solvent gas further adsorbs, filters out residue lacquer powder through reproducible corallite or the renewable absorbent charcoal functional ceramic of adsorption tanks 51 bottoms first, then enter activated carbon adsorption layer, utilize active carbon that the adsorption capacity of organic solvent gas is adsorbed, the Purge gas organic solvent content that adsorbed reaches the discharge standard requirement, directly discharges in the atmosphere by adsorption tanks 51 exhaust outlets; Active carbon through adsorbing organic solvent after a while switches to the desorption and regeneration state near saturation state by automatic control system, and desorption and regeneration is undertaken by passing into the water vapour form to adsorption tanks 51 take water vapour as medium; Organic vapor behind the desorption and water vapour enter condenser 7 and are cooled to liquid state, send at last oil water separator 8 and utilize organic solvent and the difference of specific gravity of water to carry out separating of organic solvent and water.When adsorption tanks 51 initial adsorption, active carbon only is in a little load organic solvent, adopt single tank absorption can reach emission request, the adsorption tanks 52 of this moment carry out the water vapour desorption, when adsorption tanks 51 during near leakage point, adsorption tanks 52 active carbons have been regenerated complete, and adsorption tanks 51 at this moment can be connected in series to adsorption tanks 52, so can not accept superfluous organic solvent because adsorption tanks 52 have load, adsorption tanks 51 are more near saturation state.Two adsorption tanks 51,52 adsorption and desorptions hocket, and so move in circles, and guarantee the continuous recovery of waste organic solvent gas.In adsorption tanks 51 desorptions, adsorption tanks 52 begin to adsorb, when tank 52 upon adsorption carried out desorption, adsorption tanks 51 adsorbed again, so move in circles, and had guaranteed the continuous recovery of waste organic solvent gas, have improved adsorption tanks 51,52 utilization rate of equipment and installations.
In addition, above-mentioned sack cleaner 3 adopts the off-line ash-clearing Low-Pressure Pulse Bag Filter usually, and this sack cleaner 3 has the following advantages: a) drag losses is little.Dusty gas enters each filter chamber, unit also by the flue gas flow guiding device in the ash bucket by mozzle, since in the design bag end from air inlet vertical range suitable for reading have enough, rational headroom, air-flow is by suitable water conservancy diversion and naturally flow to distribution, reaches whole filtration indoor air flow and is evenly distributed; Granule dust in the dusty gas directly falls into ash bucket, all the other dust under the guiding of flow guide system by the natural subsidence separation, enters middle casing filtering area with air-flow, is adsorbed on the filter bag outer surface.Clean gas after the filtration sees through filter bag and discharges through upper box, exhaust duct; B) unique design of deduster off-line valve makes this sack cleaner 3 have off-line ash-clearing function and on-line maintenance function; C) waterproof and oilproof PO PE NT PTFE material, purification style are outside filtering type; D) use the long service-life diaphragm electromagnetic impulse valve to carry out the low pressure jetting deashing, deashing ability improves; E) for the deduster handling characteristics, multinomial online detection, the watch-dogs such as the detection of deduster operating pressure, material level detection, operational outfit fault detect are set.Certain sack cleaner of the present invention 3 also can be selected other equipment that has same dust removal performance and meet economy beyond the example.The off-line ash-clearing Low-Pressure Pulse Bag Filter is prior art, does not repeat them here.
Above-mentioned condenser 7 cooling mediums adopt the water-cooled form, and condenser 7 hot water is out sent into condenser 7 after sending cooling tower (not drawing among Fig. 1) cooling again, forms hydronic effect.
Above-mentioned only is the specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. a paint spraying organic solvent waste gas recycling device comprises the coating cloud removal device, blower fan, adsorption tanks, condenser and the oil water separator that connect successively, it is characterized in that:
Described coating cloud removal device comprises air collector, cyclone dust collectors and the sack cleaner for temporary waste organic solvent gas;
The entrance of described air collector is connected with the waste organic solvent gas pipe of japanning room, and the outlet of air collector is connected with the entrance of cyclone dust collectors, and the outlet of cyclone dust collectors is connected with the entrance of sack cleaner, and the outlet of sack cleaner is connected with fans entrance.
2. paint spraying organic solvent waste gas recycling device as claimed in claim 1 is characterized in that: have the cavity of a temporary waste organic solvent gas in the described air collector, be equiped with deflection plate or spiral board in the described cavity or at air collector top dress venturi filter paper.
3. paint spraying organic solvent waste gas recycling device as claimed in claim 2, it is characterized in that: described blower fan is centrifugal high pressure fan; Be separated with gripper shoe between in the described adsorption tanks, this gripper shoe top is filled with fibrous activated carbon, and this gripper shoe is under-filled corallite or renewable absorbent charcoal functional ceramic.
4. such as the arbitrary described paint spraying organic solvent waste gas recycling device of claim 2, it is characterized in that: described paint spraying organic solvent waste gas recycling device comprises at least two adsorption tanks, all be connected with organic exhaust gas on each adsorption tanks and enter pipe and organic exhaust gas arm, each organic exhaust gas enters on pipe and the organic exhaust gas arm valve is installed, it is parallel with one another that described organic exhaust gas enters pipe, and it all is connected in the outlet of blower fan; Described organic exhaust gas arm is parallel with one another.
5. such as the arbitrary described paint spraying organic solvent waste gas recycling device of claim 3, it is characterized in that: described paint spraying organic solvent waste gas recycling device comprises at least two adsorption tanks, all be connected with organic exhaust gas on each adsorption tanks and enter pipe and organic exhaust gas arm, each organic exhaust gas enters on pipe and the organic exhaust gas arm valve is installed, it is parallel with one another that described organic exhaust gas enters pipe, and it all is connected in the outlet of blower fan; Described organic exhaust gas arm is parallel with one another.
6. such as the arbitrary described paint spraying organic solvent waste gas recycling device of claim 1, it is characterized in that: described paint spraying organic solvent waste gas recycling device comprises at least two adsorption tanks, all be connected with organic exhaust gas on each adsorption tanks and enter pipe and organic exhaust gas arm, each organic exhaust gas enters on pipe and the organic exhaust gas arm valve is installed, it is parallel with one another that described organic exhaust gas enters pipe, and it all is connected in the outlet of blower fan; Described organic exhaust gas arm is parallel with one another.
7. paint spraying organic solvent waste gas recycling device as claimed in claim 4, it is characterized in that: described paint spraying organic solvent waste gas recycling device also comprises automatic control system, each valve and oil water separator on described cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system, automatic control system is regulated the opening of each valve on the adsorption tanks, thereby corresponding adsorption tanks are adsorbed or desorption and regeneration in series or in parallel with each otherly.
8. paint spraying organic solvent waste gas recycling device as claimed in claim 5, it is characterized in that: described paint spraying organic solvent waste gas recycling device also comprises automatic control system, each valve and oil water separator on described cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system, automatic control system is regulated the opening of each valve on the adsorption tanks, thereby corresponding adsorption tanks are adsorbed or desorption and regeneration in series or in parallel with each otherly.
9. paint spraying organic solvent waste gas recycling device as claimed in claim 6, it is characterized in that: described paint spraying organic solvent waste gas recycling device also comprises automatic control system, each valve and oil water separator on described cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system, automatic control system is regulated the opening of each valve on the adsorption tanks, thereby corresponding adsorption tanks are adsorbed or desorption and regeneration in series or in parallel with each otherly.
10. method of utilizing the arbitrary described device of claim 1-9 to reclaim organic solvent, it is characterized in that: it may further comprise the steps successively, removes coating cloud, absorption, water vapour desorption, condensation and water-oil separating; Described removal coating cloud step comprises: waste organic solvent gas is temporary in makes it pre-air-dry and begin to take shape the lacquer powder in the air collector first, then enter air-dry in the cyclone dust collectors and form the lacquer powder again; The preliminary lacquer powder of removing enters at last again and removes the lacquer powder in the sack cleaner simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102973078A CN103316560A (en) | 2013-07-16 | 2013-07-16 | Spray paint organic solvent exhaust gas recovery device and organic solvent recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102973078A CN103316560A (en) | 2013-07-16 | 2013-07-16 | Spray paint organic solvent exhaust gas recovery device and organic solvent recovery method |
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| CN103316560A true CN103316560A (en) | 2013-09-25 |
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| CN2013102973078A Withdrawn CN103316560A (en) | 2013-07-16 | 2013-07-16 | Spray paint organic solvent exhaust gas recovery device and organic solvent recovery method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107593A (en) * | 2014-07-30 | 2014-10-22 | 福建省首融环境科技有限公司 | Device and method for purifying organic container painting waste gas |
| CN104645765A (en) * | 2015-01-13 | 2015-05-27 | 湖北瓦仓谷香生态农业有限公司 | Automatic dedusting device |
| CN104722174A (en) * | 2015-02-10 | 2015-06-24 | 石家庄天龙环保科技有限公司 | Method for recycling volatile organic compound by assistance of nitrogen |
| CN104941382A (en) * | 2015-06-11 | 2015-09-30 | 陆钢 | Organic waste gas treatment device and method |
-
2013
- 2013-07-16 CN CN2013102973078A patent/CN103316560A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107593A (en) * | 2014-07-30 | 2014-10-22 | 福建省首融环境科技有限公司 | Device and method for purifying organic container painting waste gas |
| CN104107593B (en) * | 2014-07-30 | 2016-05-04 | 泉州市天龙环境工程有限公司 | The spray paint purifier of organic exhaust gas of container |
| CN105536523A (en) * | 2014-07-30 | 2016-05-04 | 泉州市天龙环境工程有限公司 | Method for purifying container paint-spraying organic waste gas |
| CN105536523B (en) * | 2014-07-30 | 2018-02-06 | 泉州市天龙环境工程有限公司 | The purification method of container spray painting organic exhaust gas |
| CN104645765A (en) * | 2015-01-13 | 2015-05-27 | 湖北瓦仓谷香生态农业有限公司 | Automatic dedusting device |
| CN104722174A (en) * | 2015-02-10 | 2015-06-24 | 石家庄天龙环保科技有限公司 | Method for recycling volatile organic compound by assistance of nitrogen |
| CN104941382A (en) * | 2015-06-11 | 2015-09-30 | 陆钢 | Organic waste gas treatment device and method |
| CN104941382B (en) * | 2015-06-11 | 2017-08-08 | 广州迪佰瑞环保科技有限公司 | The processing unit and method of a kind of organic exhaust gas |
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Application publication date: 20130925 |