CN105268583A - Spray dry processing system and processing method - Google Patents
Spray dry processing system and processing method Download PDFInfo
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- CN105268583A CN105268583A CN201510715857.6A CN201510715857A CN105268583A CN 105268583 A CN105268583 A CN 105268583A CN 201510715857 A CN201510715857 A CN 201510715857A CN 105268583 A CN105268583 A CN 105268583A
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- powder
- coating cloud
- filter
- air
- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
Abstract
The invention discloses a spray dry processing system which comprises a waste gas pipe, an adhesive spraying device, a gas-powder separation device, a powder filtering device, a waste can, a suction air return device and a control device, wherein one end of the waste gas pipe is connected with a spray chamber, and the other end of the waste gas pipe is respectively connected with the adhesive spraying device and the gas-powder separation device; the gas-powder separation device is connected with the powder filtering device and the suction air return device in sequence, and the bottoms of the gas-powder separation device and the powder filtering device are communicated with the waste can; the control device is electrically connected with the adhesive spraying device, the gas-powder separation device, the powder filtering device and the suction air return device respectively. The spray dry processing system has the characteristics of simple process, good treatment effect, low energy consumption, environmental friendliness, safety, convenience in use and the like, and modular design is adopted.
Description
Technical field
The present invention relates to technical field of waste gas treatment, particularly one spraying coating cloud dry treatment system and method.
Background technology
Spraying coating process is the important process link in mechanical manufacturing field, a large amount of coating clouds and waste gas can be produced in existing spraying coating process, especially in aerial spraying operation, solvent based coating major part in spraying process is dispersed with coating cloud form, very major part does not utilize completely, it via extract system, must be discharged spray booth after producing and floating by coating cloud by force, thus produces larger harm to ambient air quality.In addition, because coating and paint particle viscosity are comparatively large, very easily stick in inner-walls of duct and filter plant, not only remove difficulty, also can produce larger infringement to equipment.
The process of existing spraying coating process coating cloud generally adopts wet type and dry type, and the former first washs coating cloud with spray column, coating cloud and water is fully mixed and enters adsorption tower again, utilizes active carbon to adsorb the harmful components in coating cloud.This method not only clearance is lower, only can remove the coating cloud particle of about 30%, and a large amount of steam can be produced in processing procedure, larger corrosion is existed to equipment, be unfavorable for that quantity-produced carries out, in addition, wet-treating can use a large amount of water resources, not only cause the waste of water resource, also can form secondarily polluted water.So increasingly serious along with Environmental Protection Situation, relevant policies are put into effect in country and each place, forbid the spraying coating process production line making purification medium of water to start.It is all adopt compositive filter filter core to carry out simple process that the latter's dry treatment method generally adopts, as more renewed filter material filter core not in time, will extreme influence treatment effect, do not reach safety, environmental requirement, and frequently change filter material filter core, virtually improve treatment cost and maintenance cost, for continuous seepage type, enterprise is difficult to bear.
Summary of the invention
The object of the invention is to propose a kind of spraying coating cloud dry treatment system, filter material in existing spraying coating cloud dry process technique effectively can be avoided to change frequent, water resource waste and secondary pollution problems, have that treatment effeciency is high, Environmental Safety and the feature such as treatment cost is lower.
For achieving the above object, the present invention proposes a kind of spraying coating cloud dry treatment system, comprise flue gas leading, adhesive flusher, gas powder separator, powder filter, trash receptacle, bleed air-returning device and control device, one end of described flue gas leading is connected with paint spray booth, and the other end is connected with described adhesive flusher and described gas powder separator respectively; Described gas powder separator and described powder filter and described in air-returning device of bleeding be connected successively, the bottom of described gas powder separator and the bottom of described powder filter are all communicated with described trash receptacle; Described control device respectively with described adhesive flusher, described gas powder separator, described powder filter and described in air-returning device of bleeding be electrically connected; Wherein, described adhesive flusher sprays powder adhesive to the coating cloud in described flue gas leading and fully contacts with the coating cloud in described flue gas leading and mix and bond, through described gas powder separator, described powder filter and described in bleed and to access spray gun for paint after air-returning device process and connect gas port and carry out spraying operation.
Further, described adhesive flusher comprises the powder adherence agent storage bin and powder adherence agent shower nozzle that are interconnected, described powder adherence agent storage bin is positioned at the top of described powder adherence agent shower nozzle, and described powder adherence agent shower nozzle to be located in described flue gas leading and to be positioned at the front end of described gas powder separator.
Further, described powder adherence agent is by refined lime and the porous activated carbon mixture that forms of 4:1 by mass percentage.
Further, described gas powder separator is inversion type cyclone mechanism, comprises spiral centrifugal chamber and vertically inserts the air intake duct of inside, described spiral centrifugal chamber from the bottom centre position in described spiral centrifugal chamber; The bottom in described spiral centrifugal chamber is provided with air inlet, for sucking the binding of coating cloud and powder adherence agent; The top in described spiral centrifugal chamber is provided with blanking port, and described trash receptacle is positioned at the bottom of described blanking port, for collecting the binding through the isolated coating cloud of described gas powder separator and powder adherence agent.
Further, described powder filter adds differential pressure pickup, described differential pressure pickup is located in the filter chamber of described powder filter, and is electrically connected with described control device.
Further, described powder filter is provided with vibrating device further, and described vibrating device is fixedly connected with the filter of described powder filter, and is electrically connected with described control device.
Further, described powder filter is provided with back-blowing device further, and described back-blowing device just to the filter of described powder filter, and is electrically connected with described control device.
Further, described in air-returning device of bleeding comprise the air exhauster, air compressor, air accumulator and the backwind tube that are communicated with successively, described air exhauster is communicated with the rear end of described powder filter, and the end access spray gun for paint of described backwind tube connects gas port.
Further, described in air-returning device of bleeding be provided with exhaust duct further, described exhaust duct is communicated with described air compressor; The upper end of described exhaust duct is provided with closed type air door; Wherein, the opening and closing of described closed type air door controlled by the force value of described air accumulator.
For solving the problems of the technologies described above, the present invention also provides a kind of processing method spraying coating cloud dry treatment system, the treating method comprises:
S101: start air exhauster and open adhesive flusher, powder adherence agent shower nozzle sprays powder adhesive in flue gas leading, and powder adherence agent is mixed with the coating cloud in flue gas leading;
S102: open gas powder separator, suck the mixture of coating cloud and powder adherence agent, and make coating cloud fully contact with powder adherence agent, bond and adsorb in described gas powder separator, be affected by gravity sedimentation after described coating cloud and described powder adherence agent bond absorption mutually and fall in trash receptacle;
S103: open powder filter, filters the binding of the coating cloud after step S102 process and powder adherence agent to being adsorbed on the filter of described powder filter completely; Wherein, when being located at the differential pressure pickup in powder filter and detecting that pressure reduction reaches setting value, start back-blowing device and vibrating device;
S104: open air compressor, the waste gas after step S103 process enters in air accumulator and stores after the compression of described air compressor, and accesses spray gun for paint through backwind tube and connect gas port and carry out spraying operation.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention adopts dry method process coating cloud waste gas, does not cause water pollutions, save great lot of water resources, while reducing cost of sewage disposal, decrease the corrosion to equipment, extend the service life of equipment.Adopt powder adherence agent to adhere to coating cloud in initial filter section and make its natural subsidence, effectively can not only remove most coating cloud particle, reduce escaped quantity, and decrease filtration link, decrease the follow-up coating cloud amount entering powder filter, effectively improve filter efficiency, extend the service life of powder filter filter material, also greatly reduce exhausting energy loss in addition.In the powder filtration devices stage by pressure sensor senses change in pressure, trigger back-blowing device and vibrating device, further ensure filtration treatment effect, send into backwind tube circulation spraying finally by air compressor and use, effectively save production cost, avoid the pollution to environment.Spraying coating cloud dry treatment system of the present invention have employed modularized design, has that technique is simple, filter effect is good, energy consumption is lower, Environmental Safety and a feature such as easy to use.
Accompanying drawing explanation
Fig. 1 is the principle schematic that the present invention sprays coating cloud dry treatment system.
Fig. 2 is the process chart that the present invention sprays coating cloud dry treatment system.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Refer to Fig. 1, the present invention proposes a kind of spraying coating cloud dry treatment system, comprise flue gas leading 1, adhesive flusher 2, gas powder separator 3, powder filter 4, trash receptacle 5, bleed air-returning device 6 and control device (not shown), one end of flue gas leading 1 is connected with paint spray booth 7, and the other end is connected with adhesive flusher 2 and gas powder separator 3 respectively; Gas powder separator 3 is connected successively with powder filter 4 and air-returning device 6 of bleeding, and the bottom of gas powder separator 3 and the bottom of powder filter 4 are all communicated with trash receptacle 5; Control device is electrically connected with adhesive flusher 2, gas powder separator 3, powder filter 4 and air-returning device 6 of bleeding respectively; Wherein, adhesive flusher 2 sprays powder adhesive to the coating cloud in flue gas leading 1 and fully contacts with the coating cloud in flue gas leading 1 and mix and bond, and accesses spray gun for paint and connect gas port 8 and carry out spraying operation after gas powder separator 3, powder filter 4 and air-returning device 6 of bleeding process.
Please continue to refer to Fig. 1, in the present embodiment, adhesive flusher 2 comprises the powder adherence agent storage bin 201 and powder adherence agent shower nozzle 202 that are interconnected, powder adherence agent storage bin 201 is positioned at the top of powder adherence agent shower nozzle 202, and powder adherence agent shower nozzle 202 to be located in flue gas leading 1 and to be positioned at the front end of gas powder separator 3.Powder adherence agent is stored in powder adherence agent storage bin 201, and in the present invention, powder adherence agent is by refined lime and the porous activated carbon mixture that forms of 4:1 by mass percentage, can effectively adhere to coating cloud and make its natural subsidence under gravity.
Please consult Fig. 1 further, in the present embodiment, gas powder separator 3 is inversion type cyclone mechanism, comprises spiral centrifugal chamber 301 and vertically inserts the air intake duct 302 of inside, spiral centrifugal chamber 301 from the bottom centre position in spiral centrifugal chamber 301; The bottom in spiral centrifugal chamber 301 is provided with air inlet 303, for sucking the binding of coating cloud and powder adherence agent; The top in spiral centrifugal chamber 301 is provided with blanking port 304, and trash receptacle 5 is positioned at the bottom of blanking port 304, for collecting the binding through the isolated coating cloud of gas powder separator 3 and powder adherence agent.
As shown in Figure 1, powder filter 4 comprises filter chamber 401 and is arranged at the filter 402 in the middle part of filter chamber 401, and one end of filter chamber 401 is communicated with air intake duct 302, and the other end is communicated with trash receptacle 5, and filter 402 is equipped with filter core.Powder filter 4 adds differential pressure pickup (not shown), vibrating device (not shown) and back-blowing device (not shown), wherein, differential pressure pickup is located in the filter chamber 401 of powder filter 4, and is electrically connected with control device; Vibrating device is fixedly connected with the filter 402 of powder filter 4, and is electrically connected with control device; Back-blowing device just to the filter 402 of powder filter 4, and is electrically connected with control device.
Please consult Fig. 1 further, in the present embodiment, air-returning device 6 of bleeding comprises the air exhauster 601, air compressor 602, air accumulator 603, backwind tube 604 and the exhaust duct 605 that are communicated with successively, air exhauster 601 is communicated with the rear end of powder filter 4, and the end access spray gun for paint of backwind tube 604 connects gas port 8.Exhaust duct 605 is communicated with air compressor 602; The upper end of exhaust duct 605 is provided with closed type air door 606; Wherein, the opening and closing of closed type air door 606 controlled by the force value of air accumulator 603.
The present invention also provides a kind of processing method spraying coating cloud dry treatment system, the treating method comprises:
S101: start air exhauster 601 and open adhesive flusher 2, powder adherence agent shower nozzle 202 sprays powder adhesive in flue gas leading 1, and powder adherence agent is mixed with the coating cloud in flue gas leading 1; In this step, control device outputs signal to adhesive flusher 2, and powder adherence agent shower nozzle 202 sprays the powder adherence agent of normal powder amount, and air exhauster 601 runs well; When the blast of air exhauster 601 is higher or on the low side, the dust amount of control device to powder adherence agent shower nozzle 202 makes the appropriate adjustments, to ensure that coating cloud fully mixes with powder adherence agent.
S102: open gas powder separator 3, suck the mixture of coating cloud and powder adherence agent, and make coating cloud fully contact with powder adherence agent, bond and adsorb in gas powder separator 3, be affected by gravity sedimentation after coating cloud and powder adherence agent bond absorption mutually and fall in trash receptacle 5; In this step, spiral centrifugal chamber 301 is entered from the air inlet 303 bottom spiral centrifugal chamber 301 after coating cloud mixes with powder adherence agent, enter the coating cloud in spiral centrifugal chamber 301 and the chamber wall of the binding particle of powder adherence agent along helical cavity 301 under centrifugal force and self gravitation effect is progressively displaced downwardly to blanking port 304, finally fall in trash receptacle 5.Part coating cloud and powder adherence agent flow downward with air-flow under centrifugal action, and its tangential velocity constantly increases, and then counter steer are formed inward turning ascending air, finally enter air intake duct 302 and enter step S103 and treat further process;
S103: open powder filter 4, filters the binding of the coating cloud after step S102 process and powder adherence agent to being adsorbed on the filter 402 of powder filter 4 completely; Wherein, when being located at the differential pressure pickup in powder filter 4 and detecting that pressure reduction reaches setting value, start back-blowing device and vibrating device; In this step, the binding that back-blowing device is aimed on the filter 402 of powder filter 4 is jetted, and prevents binding from luming; Meanwhile, vibrating device, with the filter 402 of appropriate frequency vibration powder filter 4, makes the binding on it shake off and finally falls in trash receptacle 5; After the pressure reduction in powder filter 4 is steady, stop back-blowing device and vibrating device.When vibrating device triggering vibration frequency reaches setting value or vibration cannot reduce pressure reduction, vibrating device outputs signal to control device, the filter material of the filter 402 of reminding user to replace powder filter 4.
S104: open the waste gas after air compressor 602, step S103 process and enter 603 storages in air accumulator after air compressor 602 compresses, and access spray gun for paint through backwind tube 604 and connect gas port 8 and carry out spraying operation.In this step, waste gas after step S103 process has removed coating cloud particle only containing materials such as organic solvents, meet aerial spraying operation gas standard, access spray gun for paint through backwind tube 604 and connect gas port 8 and can enter paint spray booth 7 and carry out circulation spraying operation, greatly reduce toxic emission.Meanwhile, one end of air compressor 602 is communicated with exhaust duct 605, and the other end is communicated with exhaust duct 605; The upper end of exhaust duct 605 is provided with closed type air door 606, and the opening and closing of closed type air door 606 controlled by the force value of air accumulator 603; When the air pressure in air accumulator 603 reaches default normal pressure, spraying operation in paint spray booth 7 does not carry out, and what flow in system is pure air, and closed type air valve 606 is opened, now, the gas in system is directly discharged in outside atmosphere through blast pipe 605; When the air pressure in air accumulator 603 does not reach default normal pressure, closed type air door 606 is in closed condition, and the waste gas in system compresses through air compressor 602 and is transported in air accumulator 603 and stores.
The present invention adopts dry method process coating cloud waste gas, does not cause water pollutions, has saved great lot of water resources, while reducing cost of sewage disposal, decreases the corrosion to equipment, extends the service life of equipment.Adopt powder adherence agent to adhere to coating cloud in initial filter section and make its natural subsidence, effectively can not only remove most coating cloud particle, reduce escaped quantity, and decrease filtration link, decrease the follow-up coating cloud amount entering powder filter, effectively improve filter efficiency, extend the service life of powder filter filter material, also greatly reduce exhausting energy loss in addition.In the powder filtration devices stage by pressure sensor senses change in pressure, trigger back-blowing device and vibrating device, further ensure filtration treatment effect, send into backwind tube circulation spraying finally by air compressor and use, effectively save production cost, avoid the pollution to environment.Spraying coating cloud dry treatment system of the present invention have employed modularized design, has that technique is simple, filter effect is good, energy consumption is lower, Environmental Safety and a feature such as easy to use.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (10)
1. a spraying coating cloud dry treatment system, it is characterized in that, comprise flue gas leading, adhesive flusher, gas powder separator, powder filter, trash receptacle, bleed air-returning device and control device, one end of described flue gas leading is connected with paint spray booth, and the other end is connected with described adhesive flusher and described gas powder separator respectively; Described gas powder separator and described powder filter and described in air-returning device of bleeding be connected successively, the bottom of described gas powder separator and the bottom of described powder filter are all communicated with described trash receptacle; Described control device respectively with described adhesive flusher, described gas powder separator, described powder filter and described in air-returning device of bleeding be electrically connected; Wherein, described adhesive flusher sprays powder adhesive to the coating cloud in described flue gas leading and fully contacts with the coating cloud in described flue gas leading and mix and bond, through described gas powder separator, described powder filter and described in bleed and to access spray gun for paint after air-returning device process and connect gas port and carry out spraying operation.
2. spraying coating cloud dry treatment system according to claim 1, it is characterized in that, described adhesive flusher comprises the powder adherence agent storage bin and powder adherence agent shower nozzle that are interconnected, described powder adherence agent storage bin is positioned at the top of described powder adherence agent shower nozzle, and described powder adherence agent shower nozzle to be located in described flue gas leading and to be positioned at the front end of described gas powder separator.
3. spraying coating cloud dry treatment system according to claim 1, is characterized in that, described powder adherence agent is by refined lime and the porous activated carbon mixture that forms of 4:1 by mass percentage.
4. spraying coating cloud dry treatment system according to claim 1, it is characterized in that, described gas powder separator is inversion type cyclone mechanism, comprises spiral centrifugal chamber and inserts the air intake duct of inside, described spiral centrifugal chamber from the bottom centre position in described spiral centrifugal chamber; The bottom in described spiral centrifugal chamber is provided with air inlet, for sucking the binding of coating cloud and powder adherence agent; The top in described spiral centrifugal chamber is provided with blanking port, and described trash receptacle is positioned at the bottom of described blanking port, for collecting the binding through the isolated coating cloud of described gas powder separator and powder adherence agent.
5. spraying coating cloud dry treatment system according to claim 1, is characterized in that, described powder filter adds differential pressure pickup, and described differential pressure pickup is located in the filter chamber of described powder filter, and is electrically connected with described control device.
6. spraying coating cloud dry treatment system according to claim 1, is characterized in that, described powder filter is provided with vibrating device further, and described vibrating device is fixedly connected with the filter of described powder filter, and is electrically connected with described control device.
7. spraying coating cloud dry treatment system according to claim 1, is characterized in that, described powder filter is provided with back-blowing device further, and described back-blowing device just to the filter of described powder filter, and is electrically connected with described control device.
8. spraying coating cloud dry treatment system according to claim 1, it is characterized in that, described air-returning device of bleeding comprises the air exhauster, air compressor, air accumulator and the backwind tube that are communicated with successively, described air exhauster is communicated with the rear end of described powder filter, and the end access spray gun for paint of described backwind tube connects gas port.
9. spraying coating cloud dry treatment system according to claim 8, is characterized in that, further, described in air-returning device of bleeding be provided with exhaust duct further, described exhaust duct is communicated with described air compressor; The upper end of described exhaust duct is provided with closed type air door; Wherein, the opening and closing of described closed type air door controlled by the force value of described air accumulator.
10. a processing method for the spraying coating cloud dry treatment system as described in claim 1-9, is characterized in that, the treating method comprises:
S101: start air exhauster and open adhesive flusher, powder adherence agent shower nozzle sprays powder adhesive in flue gas leading, and powder adherence agent is mixed with the coating cloud in flue gas leading;
S102: open gas powder separator, suck the mixture of coating cloud and powder adherence agent, and make coating cloud fully contact with powder adherence agent, bond and adsorb in described gas powder separator, be affected by gravity sedimentation after described coating cloud and described powder adherence agent bond absorption mutually and fall in trash receptacle;
S103: open powder filter, filters the binding of the coating cloud after step S102 process and powder adherence agent to being adsorbed on the filter of described powder filter completely; Wherein, when being located at the differential pressure pickup in powder filter and detecting that pressure reduction reaches setting value, start back-blowing device and vibrating device; S104: open air compressor, the waste gas after step S103 process enters in air accumulator and stores after the compression of described air compressor, and accesses spray gun for paint through backwind tube and connect gas port and carry out spraying operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510715857.6A CN105268583B (en) | 2015-10-28 | 2015-10-28 | One kind spraying coating cloud dry treatment system and processing method |
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| CN201510715857.6A CN105268583B (en) | 2015-10-28 | 2015-10-28 | One kind spraying coating cloud dry treatment system and processing method |
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| CN105268583A true CN105268583A (en) | 2016-01-27 |
| CN105268583B CN105268583B (en) | 2017-08-01 |
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Cited By (3)
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| CN107583781A (en) * | 2017-10-16 | 2018-01-16 | 鸿心环保工程(昆山)有限公司 | Spray painting energy-saving and emission-reduction system |
| CN108745734A (en) * | 2018-06-04 | 2018-11-06 | 安徽江淮汽车集团股份有限公司 | A kind of wind balance-conditioning system of paint spray booth |
| CN112474150A (en) * | 2020-11-13 | 2021-03-12 | 北京市劳动保护科学研究所 | Dust removal system and method for powder coating |
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| Publication number | Publication date |
|---|---|
| CN105268583B (en) | 2017-08-01 |
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Effective date of registration: 20200807 Address after: 410600 2nd Ring East Road, Ningxiang Economic Development Zone, Changsha City, Hunan Province Patentee after: HUNAN QIBANG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: Changsha County City, Hunan province 410129 Changsha Langli Street Garden Village in the autumn pond Group No. 180 Patentee before: HUNAN ZHONGZHONG ENVIRONMENTAL PROTECTION COATING EQUIPMENT Co.,Ltd. |