CN102603108A - Circulating water treatment system of wet-type spray booth and treatment method - Google Patents
Circulating water treatment system of wet-type spray booth and treatment method Download PDFInfo
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- CN102603108A CN102603108A CN2012100823118A CN201210082311A CN102603108A CN 102603108 A CN102603108 A CN 102603108A CN 2012100823118 A CN2012100823118 A CN 2012100823118A CN 201210082311 A CN201210082311 A CN 201210082311A CN 102603108 A CN102603108 A CN 102603108A
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Abstract
The invention discloses a circulating water treatment system of a wet-type spray booth, which comprises a grid pond, an regulating pond, a chemical feeding pond, a magnetic separating pond and a settling pond; the inner part of the adjusting pond is provided with a water outlet pump, and the bottom part of the regulating pond is provided with a stirrer; the regulating pond is communicated with a first chemical feeding device through a chemical feeding pipeline; the bottom part of the chemical feeding pond is provided with a stirrer, and the chemical feeding pond is communicated with a second chemical feeding device through a chemical feeding pipeline; the inner part of the magnetic separating pond is provided with a rotary magnetic disk, and the magnetic separating pond is communicated with a magnetic seed recycling device through a paint slag discharging pipeline at the bottom part of the magnetic separating pond; the settling pond is communicated with a third chemical feeding device through a chemical feeding pipeline and communicated with a sludge thickener through a discharging pipeline at the bottom part of the settling pond, and a circulating pump is arranged in the settling pond; and the magnetic seed recycling device is communicated with the chemical feeding pond and the sludge thickener through pipelines respectively, and the sludge thickener is communicated with the regulating pond through a pipeline. In circulating water treated by the wet-type spray booth circulating water treatment system disclosed by the invention, the turbidity removal ratio reaches 80-90%, and the chemical oxygen demand removal rate can reach 75-80%.
Description
One, technical field:
The present invention relates to a kind of Waste Water Treatment and treatment process, particularly relate to a kind of wet type paint spray booth circular water treating system and treatment process.
Two, background technology:
Traditional contain coating cloud organic wastewater purifying pretreatment unit and treatment process mainly contains: the 1. water curtain sprinkling chamber that is equipped with of spray painting equipment; 2. large-scale paint spray booth adopts the moisture film processing mode of pit type; 3. the dry type fibrous filter net that is equipped with of paint spray booth; (4) paint spray booth is equipped with outside the pre-processing device, and other is provided with dry filter.More than these dry types or wet type processing device all can remove coating cloud to a certain extent, but can't satisfy the requirement of organic waste water coating cloud content restriction.There are following shortcoming in traditional coating cloud pre-processing device and treatment process: (1) paint spray booth is equipped with, and to remove coating cloud device processes efficient lower, can not reach the pretreated requirement of organic wastewater purifying; (2) simple wet type or the inaccessible efficient purification effects of dry treatment method; (3) the supporting coating cloud equipment that removes of paint spray booth is difficult to keep normal operation because of maintaining and equipment self problem.
Three, summary of the invention:
Technical problem to be solved by this invention is: wet type paint spray booth circular water treating system and treatment process that paint particle in a kind of efficient removal paint spray booth recirculated water, reduction turbidity and COD are provided.
Technical problem to be solved by this invention is:
A kind of wet type paint spray booth circular water treating system; Said wet type paint spray booth circular water treating system comprises grating tank, equalizing tank, dosing pond, magnetic separation separation cell and settling tank, passes through pipe connection together successively between said grating tank, equalizing tank, dosing pond, magnetic separation separation cell and the settling tank; Said equalizing tank set inside has the water pump of going out, and the equalizing tank bottom is provided with whisking appliance, and equalizing tank is communicated with first medicine machine through drug feeding pipeline; Bottom, said dosing pond is provided with whisking appliance, and the dosing pond is communicated with second medicine machine through drug feeding pipeline; Said magnetic separation separation cell set inside has spinning disk, and the magnetic separation separation cell is communicated with magnetic kind recovery system through the outer discharge pipe of the lacquer slag of bottom; Said settling tank is communicated with the 3rd medicine machine through drug feeding pipeline, and settling tank is communicated with sludge thickener through the outer discharge pipe of bottom, is provided with recycle pump in the said settling tank.
Said magnetic kind recovery system is communicated with dosing pond and sludge thickener through pipeline respectively.
Said sludge thickener is communicated with equalizing tank through pipeline.
The treatment process of utilizing wet type paint spray booth circular water treating system recited above that recirculated water is handled, its concrete process step is following:
1. wet type spray room recirculated water has absorbed after the over-sprayed paint fog in the middle of the spray room, and earlier through grating tank, the effect of grating tank is large-scale suspended substance and the swimmer of holding back in the middle of the sewage, alleviates the load of subsequent disposal;
2. sewage gets into equalizing tank after through grating tank, and the residence time of sewage in equalizing tank adds the pH regulator agent by first medicine machine to sewage between 0.5～1.5h, makes the pH value of sewage reach the index request that subsequent disposal needs;
3. sewage is pumped in the dosing pond through going out water pump from equalizing tank; By adding lacquer mist coagulant B agent in the sewage of second medicine machine in the dosing pond; Dosing is provided with whisking appliance in the pond; After making the magnetic kind thorough mixing of medicament, sewage and recovery, lacquer mist coagulant B agent is caught effect with paint particle in the water and magnetic kind formation magnetic lacquer agglomerated together slag through adsorption bridging, net;
4. the water outlet that contains the lacquer slag that is magnetic in the dosing pond gets in the magnetic separation separation cell; Magneticaction through spinning disk is adsorbed onto magnetic lacquer slag on the spinning disk; Take circulating water body out of through the turning handle magnetic lacquer slag of spinning disk then; Through scraper plate the lacquer of the magnetic on spinning disk slag is struck off again, to reach the purpose of decontamination cycle water; Magnetic lacquer slag gets in the magnetic kind recovery system, and the magnetic kind of recovery is back to recycle in the dosing pond, and the lacquer slag gets into thickening in the sludge thickener;
5. the water outlet in the magnetic separation separation cell gets into settling tank, and the effect of settling tank is to be precipitated out not coating with lacquer slag completely in the separation of magnetic separation separation cell, further guarantees the water quality of recirculated water; The lacquer slag that is precipitated out gets into thickening in the sludge thickener; In settling tank, add lacquer mist coagulant A agent by the 3rd medicine machine, the recirculated water that contains lacquer mist coagulant A agent gets in the wet type paint spray booth and recycles;
6. coat with lacquer slag after sludge thickener concentrates, liquid concentrator is back to circular treatment in the equalizing tank;
7. after handling through wet type paint spray booth circular water treating system, the turbidity removal rate in the recirculated water reaches 80%～90%, and the clearance of COD reaches 75%～80%.
Wherein: the lacquer mist coagulant B agent of step described in 3. is the polyacrylamide flocculation agent, or is the modified starch series flocculation agent, or is modified-cellulose class flocculation agent.The lacquer mist coagulant A agent of step described in 5. is the Poly aluminum Chloride (PAC) coagulating agent, or is polymerization iron trichloride coagulating agent, or is the bodied ferric sulfate coagulating agent.
Total dosage of said lacquer mist coagulant A agent and lacquer mist coagulant B agent is 1 ‰ of waste water total amount～10 ‰.
The ratio of adding between said lacquer mist coagulant A agent and the lacquer mist coagulant B agent is 1: 1～5.
Detection index such as following table before and after the paint spray booth circulating water treatment:
Can find out through last table: the recirculated water that process wet type paint spray booth circular water treating system of the present invention and disposal methods are crossed, its turbidity removal rate can reach 80%～90%, and the clearance of COD can reach 75%～80%.
Four, description of drawings:
Fig. 1 is the structural representation of wet type paint spray booth circular water treating system of the present invention.
Fig. 2 is the process flow sheet of treatment process of the present invention.
Five, embodiment:
Below in conjunction with accompanying drawing the present invention is further described:
Embodiment 1: referring to Fig. 1; A kind of wet type paint spray booth circular water treating system; Comprise grating tank 1, equalizing tank 2, dosing pond 3, magnetic separation separation cell 4 and settling tank 5, between said grating tank 1, equalizing tank 2, dosing pond 3, magnetic separation separation cell 4 and the settling tank 5 successively together through pipe connection; In equalizing tank 2 set inside the water pump of going out 8 is arranged, equalizing tank 2 bottoms are provided with whisking appliance 7, and equalizing tank 2 is communicated with first medicine machine 14 through drug feeding pipeline; Be provided with whisking appliance 9 in 3 bottoms, dosing pond, dosing pond 3 is communicated with second medicine machine 13 through drug feeding pipeline; In magnetic separation separation cell 4 set inside spinning disk 10 is arranged, magnetic separation separation cell 4 is communicated with magnetic kind recovery system 16 through the outer discharge pipe of the lacquer slag of bottom; Settling tank 5 is communicated with the 3rd medicine machine 12 through drug feeding pipeline, and settling tank 5 is communicated with sludge thickener 15 through the outer discharge pipe of bottom, is provided with recycle pump 11 in the settling tank 5.
Magnetic kind recovery system 16 is communicated with dosing pond 3 and sludge thickener 15 through pipeline respectively; Sludge thickener 15 is communicated with equalizing tank 2 through pipeline.
Embodiment 2: the concrete process step that utilizes the wet type paint spray booth circular water treating system described in the embodiment 1 that waste water is handled is following:
1. wet type spray room recirculated water has absorbed after the over-sprayed paint fog in the middle of the spray room, and earlier through grating tank 1, the effect of grating tank 1 is large-scale suspended substance and the swimmer of holding back in the middle of the sewage, alleviates the load of subsequent disposal;
2. sewage gets into equalizing tank 2 through grating tank 1 back, and the residence time of sewage in equalizing tank 2 adds the pH regulator agent by first medicine machine 14 to sewage between 0.5～1.5h, makes the pH of sewage reach the index request that subsequent disposal needs;
3. sewage is pumped into dosing pond 3 from equalizing tank 2; By adding lacquer mist coagulant B agent in the sewage of second medicine machine 13 in dosing pond 3; Be provided with whisking appliance 9 in the dosing pond 3; After making the magnetic kind thorough mixing of medicament, sewage and recovery, lacquer mist coagulant B agent is caught effect with paint particle in the water and magnetic kind formation magnetic lacquer agglomerated together slag through adsorption bridging, net;
4. the water outlet that contains the lacquer slag that is magnetic in the dosing pond 3 gets in the magnetic separation separation cell 4; Magneticaction through spinning disk 10 is adsorbed onto magnetic lacquer slag on the spinning disk 10; Take circulating water body out of through the turning handle magnetic lacquer slag of spinning disk 10 then; Through scraper plate the lacquer of the magnetic on disk slag is struck off again, to reach the purpose of decontamination cycle water.Magnetic lacquer slag gets in the magnetic kind recovery system 16, and the magnetic kind of recovery is back to recycle in the dosing pond 3, and the lacquer slag gets into thickening in the sludge thickener 15;
5. the water outlet in the magnetic separation separation cell 4 gets into settling tank 5, and the effect of settling tank 5 is to be precipitated out not coating with lacquer slag completely in the separation of magnetic separation separation cell, further guarantees the water quality of recirculated water.The lacquer slag that is precipitated out gets into thickening in the sludge thickener 15.In settling tank 5, add lacquer mist coagulant A agent by the 3rd medicine machine 12, the recirculated water that contains lacquer mist coagulant A agent gets in the wet type paint spray booth and recycles;
6. coat with lacquer slag after sludge thickener 15 concentrates, water ratio can reach 75%～90%, and the liquid concentrator in the sludge thickener 15 is back to circular treatment in the equalizing tank 2;
7. after handling through the present invention, the turbidity removal rate in the recirculated water can reach 80%～90%, and the clearance of COD can reach 75%～80%.
Claims (8)
1. wet type paint spray booth circular water treating system; It is characterized in that: said wet type paint spray booth circular water treating system comprises grating tank (1), equalizing tank (2), dosing pond (3), magnetic separation separation cell (4) and settling tank (5), passes through pipe connection together successively between said grating tank (1), equalizing tank (2), dosing pond (3), magnetic separation separation cell (4) and the settling tank (5); Said equalizing tank (2) set inside has the water pump of going out (8), and equalizing tank (2) bottom is provided with whisking appliance (7), and equalizing tank (2) is communicated with first medicine machine (14) through drug feeding pipeline; Bottom, said dosing pond (3) is provided with whisking appliance (9), and dosing pond (3) are communicated with second medicine machine (13) through drug feeding pipeline; Said magnetic separation separation cell (4) set inside has spinning disk (10), and magnetic separation separation cell (4) is communicated with magnetic kind recovery system (16) through the outer discharge pipe of the lacquer slag of bottom; Said settling tank (5) is communicated with the 3rd medicine machine (12) through drug feeding pipeline, and settling tank (5) is communicated with sludge thickener (15) through the outer discharge pipe of bottom, is provided with recycle pump (11) in the said settling tank (5).
2. wet type paint spray booth circular water treating system according to claim 1 is characterized in that: said magnetic kind recovery system (16) is communicated with dosing pond (3) and sludge thickener (15) through pipeline respectively.
3. wet type paint spray booth circular water treating system according to claim 1 is characterized in that: said sludge thickener (15) is communicated with equalizing tank (2) through pipeline.
4. the treatment process of utilizing each said wet type paint spray booth circular water treating system of claim 1～3 that recirculated water is handled, its concrete process step is following:
1. wet type spray room recirculated water has absorbed after the over-sprayed paint fog in the middle of the spray room, and earlier through grating tank (1), the effect of grating tank (1) is large-scale suspended substance and the swimmer of holding back in the middle of the sewage, alleviates the load of subsequent disposal;
2. sewage gets into equalizing tank (2) through grating tank (1) back, and the residence time of sewage in equalizing tank (2) adds the pH regulator agent by first medicine machine (14) to sewage between 0.5～1.5h, makes the pH value of sewage reach the index request that subsequent disposal needs;
3. sewage is pumped into dosing pond (3) through going out water pump (8) from equalizing tank (2); By adding lacquer mist coagulant B agent in the sewage of second medicine machine (13) in the dosing pond; Be provided with whisking appliance (9) in the dosing pond (3); After making the magnetic kind thorough mixing of medicament, sewage and recovery, lacquer mist coagulant B agent is caught effect with paint particle in the water and magnetic kind formation magnetic lacquer agglomerated together slag through adsorption bridging, net;
4. the water outlet that contains the lacquer slag that is magnetic in dosing pond (3) gets in the magnetic separation separation cell (4); Magneticaction through spinning disk (10) is adsorbed onto magnetic lacquer slag on the spinning disk (10); Take circulating water body out of through the turning handle magnetic lacquer slag of spinning disk (10) then; Through scraper plate the lacquer of the magnetic on the spinning disk (10) slag is struck off again, to reach the purpose of decontamination cycle water; Magnetic lacquer slag gets in the magnetic kind recovery system (16), and the magnetic kind of recovery is back to recycle in the dosing pond (3), and the lacquer slag gets into thickening in the sludge thickener (15);
5. the water outlet in the magnetic separation separation cell (4) gets into settling tank (5), and the effect of settling tank (5) is to be precipitated out not coating with lacquer slag completely in magnetic separation separation cell (4) separation, further guarantees the water quality of recirculated water; The lacquer slag that is precipitated out gets into thickening in the sludge thickener (15); In settling tank (5), add lacquer mist coagulant A agent by the 3rd medicine machine (12), the recirculated water that contains lacquer mist coagulant A agent gets in the wet type paint spray booth and recycles;
6. coat with lacquer slag after sludge thickener (15) concentrates, liquid concentrator is back to circular treatment in the equalizing tank (2);
7. after handling through wet type paint spray booth circular water treating system, the turbidity removal rate in the recirculated water reaches 80～90%, and the clearance of COD reaches 75～80%.
5. treatment process according to claim 4 is characterized in that: the lacquer mist coagulant B agent of step described in 3. is the polyacrylamide flocculation agent, or is the modified starch series flocculation agent, or is modified-cellulose class flocculation agent.
6. treatment process according to claim 4 is characterized in that: the lacquer mist coagulant A agent of step described in 5. is the Poly aluminum Chloride (PAC) coagulating agent, or is polymerization iron trichloride coagulating agent, or is the bodied ferric sulfate coagulating agent.
7. treatment process according to claim 4 is characterized in that: total dosage of said lacquer mist coagulant A agent and lacquer mist coagulant B agent is 1 ‰ of waste water total amount～10 ‰.
8. treatment process according to claim 7 is characterized in that: the ratio of adding between said lacquer mist coagulant A agent and the lacquer mist coagulant B agent is 1: 1～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210082311.8A CN102603108B (en) | 2012-03-27 | 2012-03-27 | Circulating water treatment system of wet-type spray booth and treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210082311.8A CN102603108B (en) | 2012-03-27 | 2012-03-27 | Circulating water treatment system of wet-type spray booth and treatment method |
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| CN102603108A true CN102603108A (en) | 2012-07-25 |
| CN102603108B CN102603108B (en) | 2014-05-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104549863A (en) * | 2014-12-23 | 2015-04-29 | 安徽友顺木业有限公司 | Absorption device after paint spraying of furniture |
| CN106458639A (en) * | 2014-03-24 | 2017-02-22 | 伯东株式会社 | Recirculated wet-coating booth water treatment agent and treatment method |
| CN107445361A (en) * | 2017-08-02 | 2017-12-08 | 奇瑞汽车股份有限公司 | One kind spray painting circular water treating system and its purification technique |
| CN107540071A (en) * | 2017-07-04 | 2018-01-05 | 浙江索奥环境技术有限公司 | A kind of coating cloud waste water purification device |
| CN107540065A (en) * | 2017-07-04 | 2018-01-05 | 浙江索奥环境技术有限公司 | A kind of coating cloud flocculating and purifying device |
| CN109205824A (en) * | 2017-07-06 | 2019-01-15 | 广东新会中集特种运输设备有限公司 | The processing system of aqueous paint waste water and the processing method for using the processing system |
| CN110040870A (en) * | 2019-04-03 | 2019-07-23 | 东莞市三人行环境科技有限公司 | A kind of method of painting wastewater processing |
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| CN107445361A (en) * | 2017-08-02 | 2017-12-08 | 奇瑞汽车股份有限公司 | One kind spray painting circular water treating system and its purification technique |
| CN110040870A (en) * | 2019-04-03 | 2019-07-23 | 东莞市三人行环境科技有限公司 | A kind of method of painting wastewater processing |
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| CN102603108B (en) | 2014-05-21 |
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Granted publication date: 20140521 Termination date: 20160327 |