CN202237706U - Paint spraying organic solvent waste gas recycling device - Google Patents
Paint spraying organic solvent waste gas recycling device Download PDFInfo
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- CN202237706U CN202237706U CN2011203906109U CN201120390610U CN202237706U CN 202237706 U CN202237706 U CN 202237706U CN 2011203906109 U CN2011203906109 U CN 2011203906109U CN 201120390610 U CN201120390610 U CN 201120390610U CN 202237706 U CN202237706 U CN 202237706U
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- organic solvent
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Abstract
The utility model discloses a paint spraying organic solvent waste gas recycling device which comprises a paint mist removing device, a fan, an adsorption tank, a condenser and an oil-water separator, which are connected in sequence, wherein the paint mist removing device comprises a gas collection tank for temporarily storing organic solvent waste gas, a cyclone dust collector and a bag dust collector; and the gas collection tank, the cyclone dust collector and the bag dust collector are connected in sequence. The components of the recycling device are in reasonable and compact connection, and the dedusting efficiency is high; and the trouble of frequently replacing filtering cotton is avoided under the condition that the paint mist is removed efficiently.
Description
Technical field
The utility model relates to the organic solvent waste gas recovery technology field of spraying paint, the device that the organic solvent waste gas that specifically sprays paint reclaims.
Background technology
Lacquer spraying technique is widely used in industries such as machinery, electrical equipment, household electrical appliances, automobile, boats and ships, furniture.Raw material sprays paint---and coating is made up 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, improve its processing performance and add with resin compatibility better fluid material, add curing agent and be and promote paint rapid draing, increase adhesiveness and lacquer painting intensity, improve the chemical stability of paint.Lacquer spraying waste gas is mainly formed by volatile curing agent, diluent molecule and nonvolatile coating cloud molecular mixing.Because the coating cloud particle is small, viscosity is big, be prone to the coherent substance surface, purification must be removed coating cloud before reclaiming organic exhaust gas, and 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 coating cloud cleaning system induced draft blower withdraws, and coating cloud is under suction function; Be introduced into the coating cloud filter; Through filtering 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 big, be prone to stick to the filter cotton surface, along with filter cotton contains the increase of lacquer amount, exhaust resistance increases sharply, and therefore must select high-head air draft blower fan, and electrical power is multiplied, and operating cost improves greatly; 2, the filter cotton use of after inhaling full coating cloud, can't regenerating can only be changed, and the filter cotton use amount is very big, 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 the easy active carbon hole that stops up of coating cloud granule completely, and active carbon lost efficacy easily; 5, the adsorption tanks utilization rate is not high, and the organic solvent rate of recovery is low.In addition, traditional handicraft is generally used the method for single jar of desorption of single jar of absorption, and the organic solvent rate of recovery is not high; Another kind is just to have used two direct series adsorption of adsorption tanks when just having adsorbed; Need many increases equipment input, utilization rate of equipment and installations is not high, increases the equipment investment expense yet.
It is treatment facility that wet method adopts the cascade paint spray booth, and the equipment front is the water curtain plate, is overflow launder above the water curtain plate, and the water curtain plate is multistage cascade filter at the back.When spraying paint, the coating cloud that gets into 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 through multistage cascade filter the time.Water in the water tank is overflowed on the water curtain plate and is formed water curtain by the spilling water groove of water pump lifting to water curtain and multistage cascade filter top.But also there are many shortcomings in this method, 1, along with the various places lack of water is serious day by day, 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 process to the waste gas humidification, humidity is high; Very big to the charcoal absorption influential effect, finally have influence on waste gas Recovery of Organic Solvent efficient.
The utility model content
The utility model provides a kind of organic solvent waste gas recovering device, and 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 defective such as filter pulp.
The technical scheme of the utility model is following:
The organic solvent waste gas recovering device sprays paint; Comprise the coating cloud removal device, blower fan, adsorption tanks, condenser and the oil water separator that connect successively; Said coating cloud removal device comprises air collector, cyclone dust collectors and the sack cleaner that is used for temporary organic solvent waste gas; The inlet of said air collector is connected with the organic solvent flue gas leading of japanning room, and the outlet of air collector is connected with the inlet of cyclone dust collectors, and the outlet of cyclone dust collectors is connected with the inlet of sack cleaner; The outlet of sack cleaner is connected with fans entrance.
The cavity that has a temporary organic solvent waste gas in the said air collector is equiped with deflection plate or eddy flow plate or the dress venturi filter paper on air collector top in the said cavity.
Said blower fan is a centrifugal high pressure fan; Be separated with gripper shoe between in the said adsorption tanks, this gripper shoe top is filled with fibrous activated carbon; This gripper shoe is under-filled to have corallite or renewable absorbent charcoal functional ceramic.
The said organic solvent waste gas recovering device that sprays paint comprises at least two adsorption tanks; All be connected with organic exhaust gas on each adsorption tanks and get into pipe and organic exhaust gas arm; Each organic exhaust gas gets on pipe and the organic exhaust gas arm valve all is installed; It is parallel with one another that said organic exhaust gas gets into pipe, and it all is connected in the outlet of blower fan; Said organic exhaust gas arm is parallel with one another.
The said organic solvent waste gas recovering device that sprays paint also comprises an automatic control system, and each valve and oil water separator on said cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system.
Can know that by above-mentioned description compare with prior art, the advantage of the utility model is to the utility model:
1, the organic solvent waste gas recovering device that sprays paint of the utility model; Use air collector to carry out air-dry to coating cloud in advance earlier; Then utilize preparatory dedusting of cyclone dust collectors and further air-dry coating cloud powdering particle; Carry out high efficiency through sack cleaner again and remove the lacquer powder after air-dry, each parts of retracting device are connected rationally, compact, efficiency of dust collection is high, and in the efficient trouble of having saved the frequent change filter pulp when removing coating cloud.
2, the utility model is filled the adsorption filtration of once coating with lacquer powder again when renewable corallite or renewable absorbent charcoal functional ceramic make organic exhaust gas get into charcoal absorption in the adsorption tanks bottom; Prevent the sack cleaner dedusting thoroughly or reason such as broken bag make the active carbon hole coated with lacquer the powder obstruction, thereby prolonged the service life and the adsorption efficiency of active carbon.
3, automatic control system is regulated the opening of each valve on the adsorption tanks, thereby the mutual series and parallel of corresponding adsorption tanks ground is adsorbed or desorption and regeneration.Utilize adsorption time long, the characteristics that the desorption and regeneration time is short can be carried out the absorption simultaneously of majority jar, and the minority jar carries out desorption and regeneration, and avoid or reduce the idle time of desorption and regeneration jar, thus the utilization rate of raising adsorption tanks.
4, the automatic control system of the utility model can adopt the micro computer Automatic Control, and the man-machine interface operation can show the working condition with monitoring system in real time; According to different working conditions, system can design multiple tracks and control security alarm and chain protection automatically, 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 the structural representation of the utility model.
The specific embodiment
The specific embodiment of the utility model is described with reference to the accompanying drawings.
With reference to Fig. 1; The organic solvent waste gas recovering device sprays paint; 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 separators 7, it comprises that also a cover is used for regulating and control the automatic control system (figure does not draw) of above-mentioned each parts.The inlet of air collector 1 is connected with the organic solvent flue gas leading of japanning room (not drawing among the figure), and the outlet of air collector 1 is connected with the inlet of cyclone dust collectors 2; The outlet of cyclone dust collectors 2 is connected with the inlet of sack cleaner 3; The outlet of sack cleaner 3 is connected with centrifugal high pressure fan 4 inlets; The outlet of centrifugal high pressure fan 4 is connected with the inlet of adsorption tanks 51,52 simultaneously; The outlet of adsorption tanks 51,52 all is connected in condenser 6 inlets; The outlet of condenser 6 is connected with oil water separator 7.
The cavity that has a temporary organic solvent waste gas in the air collector 1; Can adorn deflection plate or eddy flow plate in this cavity or (these are prior art at air collector top dress venturi filter paper; Its internal structure of not drawing among the figure), to improve the air-dry speed of coating cloud.In addition, in order to obtain stronger absorption property, be filled with fibrous activated carbon usually in the adsorption tanks 51,52; 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 influences 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 powder again when the microporosity of utilizing these fillers to exist makes organic exhaust gas get into 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, repeat no more at this.
Be separated with gripper shoe (not drawing among the figure) between in the adsorption tanks 51,52, this gripper shoe top is filled with fibrous activated carbon; This gripper shoe is under-filled to have corallite or renewable absorbent charcoal functional ceramic.All be connected with organic exhaust gas on the adsorption tanks 51,52 and get into pipe 511,521 and organic exhaust gas arm 512,522; Organic exhaust gas gets 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 gets into pipe 511,521, and it all is connected in the outlet of centrifugal high pressure fan 4; Organic exhaust gas arm 512,522 is parallel with one another.During use, the controlled valve 53 that is shaped on machine waste gas entering pipe 511,521 of automatic control system is opened, at this moment, adsorption tanks 51,52 parallel connections, organic exhaust gas gets into adsorption tanks 51,52 absorption simultaneously; Automatic control system also can only be opened the valve 53 of organic exhaust gas entering pipe 511 or organic exhaust gas entering pipe 521, at this moment, adsorption tanks 51,52 series connection, organic exhaust gas successively gets into adsorption tanks 51 or adsorption tanks 52 adsorb.
Continuation is with reference to Fig. 1; A kind of method of utilizing the above-mentioned organic solvent waste gas recovering device recovery organic solvent that sprays paint; The organic exhaust gas that contains coating cloud that painting line comes out connects air collector 1 through the organic solvent flue gas leading, 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 through 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 interior whirlwind effect, the further air-dry lacquering powder of molecule in the also not air-dry fully coating cloud; The organic exhaust gas that initial stage is removed coating cloud gets into sack cleaner 3, and the distinctive feature of utilizing 3 pairs of fine particles of sack cleaner to handle is carried out high efficiency dedusting, and the deashing device (Fig. 1 does not show) of lacquer pruinescence bag-type dust equipment is handled; The organic solvent waste gas dust content that is come out by sack cleaner 3 is very low; This part organic solvent waste gas is sent into adsorption tanks 51 by centrifugal high pressure fan 4; Organic solvent waste gas further adsorbs, filters out residue lacquer powder through the reproducible corallite or the renewable absorbent charcoal functional ceramic of adsorption tanks 51 bottoms earlier; Get into activated carbon adsorption layer then; 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; The active carbon that warp is adsorbed with the machine solvent after a while switches to the desorption and regeneration state near saturation state by automatic control system, and desorption and regeneration is medium with the water vapour, carries out through feeding the water vapour forms to adsorption tanks 51; Organic vapor behind the desorption and water vapour get into condenser 7 and are cooled to liquid state, send into oil water separator 8 at last and utilize the 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 load organic solvent a little, adopts single jar of 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 and have been finished, and adsorption tanks 51 at this moment can be connected in series to adsorption tanks 52; So can not accept superfluous organic solvent because of adsorption tanks 52 have load, adsorption tanks 51 are more near saturation state.Two adsorption tanks 51,52 absorption, desorptions hocket, and so move in circles, and guarantee the continuous recovery of organic solvent waste gas.In adsorption tanks 51 desorptions, adsorption tanks 52 begin to adsorb, and when treating that adsorption tanks 52 carry out desorption, adsorption tanks 51 adsorb again, so move in circles, and have guaranteed the continuous recovery of organic solvent waste gas, have improved the utilization rate of equipment and installations of adsorption tanks 51,52.
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 is got into each filter chamber, unit and is passed through the flue gas guiding device in the ash bucket by mozzle; Air inlet vertical range suitable for reading has enough, rational headroom owing to leave at the bag end in the design; Air communication is crossed suitable water conservancy diversion and spontaneous current 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 through the natural subsidence separation, and casing filtering area in getting into 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, the deashing ability improves; E) to the deduster handling characteristics, multinomial online detection, watch-dogs such as the detection of deduster operating pressure, material level detection, operational outfit fault detect are set.Certainly the sack cleaner 3 of the utility model also can be selected other equipment that has same dust removal performance and meet economy beyond the example for use.The off-line ash-clearing Low-Pressure Pulse Bag Filter is a prior art, repeats no more at this.
Above-mentioned condenser 7 cooling mediums adopt the water-cooled form, and the hot water that condenser 7 comes out is sent into condenser 7 after sending cooling tower (not drawing among Fig. 1) cooling again, forms hydronic effect.
The above-mentioned specific embodiment that is merely the utility model, but the design concept of the utility model is not limited thereto allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (5)
1. the organic solvent waste gas recovering device sprays paint; Comprise the coating cloud removal device, blower fan, adsorption tanks, condenser and the oil water separator that connect successively; It is characterized in that: said coating cloud removal device comprises air collector, cyclone dust collectors and the sack cleaner that is used for temporary organic solvent waste gas; The inlet of said air collector is connected with the organic solvent flue gas leading of japanning room, and the outlet of air collector is connected with the inlet of cyclone dust collectors, and the outlet of cyclone dust collectors is connected with the inlet of sack cleaner; The outlet of sack cleaner is connected with fans entrance.
2. the organic solvent waste gas recovering device that sprays paint as claimed in claim 1 is characterized in that: have the cavity of a temporary organic solvent waste gas in the said air collector, be equiped with deflection plate or eddy flow plate in the said cavity or the dress venturi filter paper on air collector top.
3. the organic solvent waste gas recovering device that sprays paint as claimed in claim 1 is characterized in that: said blower fan is a centrifugal high pressure fan; Be separated with gripper shoe between in the said adsorption tanks, this gripper shoe top is filled with fibrous activated carbon; This gripper shoe is under-filled to have corallite or renewable absorbent charcoal functional ceramic.
4. the organic solvent waste gas recovering device that sprays paint as claimed in claim 1; It is characterized in that: the said organic solvent waste gas recovering device that sprays paint comprises at least two adsorption tanks; All be connected with organic exhaust gas on each adsorption tanks and get into pipe and organic exhaust gas arm; Each organic exhaust gas gets on pipe and the organic exhaust gas arm valve all is installed, and it is parallel with one another that said organic exhaust gas gets into pipe, and it all is connected in the outlet of blower fan; Said organic exhaust gas arm is parallel with one another.
5. the organic solvent waste gas recovering device that sprays paint as claimed in claim 4; It is characterized in that: the said organic solvent waste gas recovering device that sprays paint also comprises an automatic control system, and each valve and oil water separator on said cyclone dust collectors, sack cleaner, blower fan, the adsorption tanks all are connected with automatic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203906109U CN202237706U (en) | 2011-10-14 | 2011-10-14 | Paint spraying organic solvent waste gas recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203906109U CN202237706U (en) | 2011-10-14 | 2011-10-14 | Paint spraying organic solvent waste gas recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237706U true CN202237706U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203906109U Withdrawn - After Issue CN202237706U (en) | 2011-10-14 | 2011-10-14 | Paint spraying organic solvent waste gas recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237706U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389684A (en) * | 2011-10-14 | 2012-03-28 | 中科同创（厦门）环境科技有限公司 | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent |
| CN108926966A (en) * | 2018-07-19 | 2018-12-04 | 李田英 | A kind of exhaust gas combined treatment equipment and its treatment process containing coating cloud and VOCs |
| CN109173539A (en) * | 2018-11-02 | 2019-01-11 | 成都芯飞环保智能设备有限公司 | Based on the pretreated paint spray booth exhaust treatment system of pulverized limestone circulation absorption |
| CN114082267A (en) * | 2022-01-24 | 2022-02-25 | 中国电器科学研究院股份有限公司 | Integrated coating and paint spraying volatile organic waste gas treatment equipment |
-
2011
- 2011-10-14 CN CN2011203906109U patent/CN202237706U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389684A (en) * | 2011-10-14 | 2012-03-28 | 中科同创（厦门）环境科技有限公司 | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent |
| CN102389684B (en) * | 2011-10-14 | 2013-07-10 | 中科同创（厦门）环境科技有限公司 | Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent |
| CN108926966A (en) * | 2018-07-19 | 2018-12-04 | 李田英 | A kind of exhaust gas combined treatment equipment and its treatment process containing coating cloud and VOCs |
| CN109173539A (en) * | 2018-11-02 | 2019-01-11 | 成都芯飞环保智能设备有限公司 | Based on the pretreated paint spray booth exhaust treatment system of pulverized limestone circulation absorption |
| CN114082267A (en) * | 2022-01-24 | 2022-02-25 | 中国电器科学研究院股份有限公司 | Integrated coating and paint spraying volatile organic waste gas treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |