CN102992533A - Paint wastewater treatment system - Google Patents
Paint wastewater treatment system Download PDFInfo
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- CN102992533A CN102992533A CN2011102744987A CN201110274498A CN102992533A CN 102992533 A CN102992533 A CN 102992533A CN 2011102744987 A CN2011102744987 A CN 2011102744987A CN 201110274498 A CN201110274498 A CN 201110274498A CN 102992533 A CN102992533 A CN 102992533A
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Abstract
The present invention provides a paint wastewater treatment system with characteristics of low investment and low running cost. The paint wastewater treatment system comprises a sewage tank, a flocculation pipeline, a first water pump, a second water pump, an agent addition device, a magnetic separation device and a clear water tank, wherein a water inlet pipe of the magnetic separation device is communicated with the sewage tank through the flocculation pipeline and the first water pump, a water outlet pipe of the magnetic separation device is communicated with the clear water tank through the second water pump, the agent addition device is communicated with the flocculation pipeline, and is sequentially provided with a sodium hydroxide addition device, a polyaluminum chloride addition device, a polyacrylamide addition device and a PF iron powder flocculant addition device along a wastewater flow direction, the magnetic separation device comprises a mud water separation tank provided with a water inlet pipe and a water outlet pipe, a magnetic rotation disc arranged inside the mud water separation tank through a rotation shaft, a mud scraping plate and a residue cleaning region, the rotation shaft is connected with a power device through a speed reducer, and the mud scraping plate is fixed between the residue cleaning region and the magnetic rotation disc, and contacts the magnetic rotation disc.
Description
Technical field
The invention belongs to technical field of waste water processing, specially refer to a kind of paint waste water treatment system.
Background technology
Be coated with on the workpiece face no matter in painting process, adopt which kind of spraying method that coating cloud all is attached to, always produced a part of over-sprayed paint fog.Reduce the discharging of organic solvent, protection of the environment is saved the energy and resource, reduces cost, guarantees that coating quality is the direction that paint industry is constantly pursued, and is the bottleneck of industry of spraying paint at present and make great efforts to improve the rate of recovery of spraying paint.Improved the spray rate of recovery and just meaned that reducing consumption paints this, improved operator's working conditions, and is conducive to fire-fighting and labor safety.Reduce simultaneously the clearing times of paint spray booth's paint mist filtering device, make the discharging cycle stretch-out of recirculated water.Therefore, improved the rate of recovery of spraying paint for environmental protection, safety in production, fire-fighting, saving resource and the energy, and reduce cost etc. very important meaning is arranged.Over-sprayed paint fog in the spray chamber circulating water has viscosity because of it, can stick on water pump, fan blade and the gas exhaust duct, affects the normal operation of equipment, causes that application is bad, reduce production efficiency, and brings safety and health hidden danger, and Working environment is worsened.Coating cloud sticks to equipment surface, and the burn into of having accelerated equipment is aging.In circulating water pipeline and bottom land precipitation, reduced recirculating water purification efficient, increased recirculated water and changed number of times, and removed these lacquer slag storess and expend again a large amount of manpowers and time.Traditional paint waste water treatment process comprises following several: 1, adopt biochemical treatment, the chemical agent that adds doses in the waste water, through catchmenting equalizing tank-grid-in and coagulation-air supporting-acidication adjusting-oxidation ditch-second pond-BAF-series of process such as water outlet process, this treatment process floor space and cost of investment are large, the operation and management cost is high, and general medium and small sized enterprises are had problems in early investment.2, adopt strainer, slurry tank, press filtration mode handling oil paint waste water, the easy obturating element of high viscosity substance and waste water in this treatment process, it is high to change element and running cost, and reliability is low.3, adopt traditional paint flocculation agent, to Oil Paint Slag remove sticking, the laggard pedestrian worker's water surface that suspends is salvaged or adopt slag scraper to salvage, this treatment process bits are processed not thorough, can't thoroughly remove for the bottom, pond, cause easily the obstruction of water-screen cabinet recycle pump and have influence on spray effect, the paint mist easily causes secondary pollution from the venting port eliminating, and environmental protection is difficult to up to standard, and running cost is higher.
Summary of the invention
The objective of the invention is to propose a kind of infusion of financial resources less, paint waste water treatment system that running cost is low.
Paint waste water treatment system of the present invention comprises sewage lagoon, flocculation pipeline, the first water pump, the second water pump, chemicals dosing plant, magnetic separating apparatus, clean water basin, the water inlet pipe of described magnetic separating apparatus communicates with sewage lagoon by flocculation pipeline and the first water pump, and the rising pipe of described magnetic separating apparatus communicates with clean water basin by the second water pump; Described chemicals dosing plant communicates with the flocculation pipeline, and described chemicals dosing plant sets gradually sodium hydroxide chemicals dosing plant, polymerize aluminum chloride chemicals dosing plant, polyacrylamide chemicals dosing plant and PF iron powder flocculation agent chemicals dosing plant along the waste water flow direction; Described magnetic separating apparatus comprises the mud-water separation groove that is provided with water inlet pipe and rising pipe, is installed on magnetic rotary disk, cleaning shoe and scarfing cinder zone in the mud-water separation groove by rotating shaft, described rotating shaft links to each other with power set by step-down gear, described cleaning shoe is fixed between scarfing cinder zone and the magnetic rotary disk, and contacts with magnetic rotary disk.
The principle of work of above-mentioned paint waste water treatment system is as follows: at first be pooled in the sewage lagoon from paint spray room paint waste water out, then utilize the first water pump to be drawn in the magnetic separating apparatus by the flocculation pipeline, waste water flow through the flocculation pipeline in the time, chemicals dosing plant adds respectively corresponding medicament in the sewage and flocculates fully, coagulation, suspended substance in the paint waste water is effectively condensed, wherein sodium hydroxide (NaOH) plays the effect of regulating the waste water pH value, so that polymerize aluminum chloride (PAC) and polyacrylamide (PAM) play a role in reaction process better.Polymerize aluminum chloride is a kind of flocculation agent, is a kind of inorganic polymer coagulant, the inorganic polymer water treatment agent that molecular weight is large, electric charge is higher of producing owing to the polymerization of the bridging action of hydroxide ion and multivalent anions; Polyacrylamide is a kind of coagulant aids, is to make small flco agglomerated together become the water treatment agent of larger floc sedimentation.PF iron powder (having another name called magnetic, is a kind of Z 250) helps solidifying by polyacrylamide, can be rolled into large floc sedimentation with the small floc sedimentation of original flocculation.When waste water enters into the mud-water separation groove of magnetic separating apparatus, paint slag has been flocculated and has embraced into floc sedimentation, and under the effect in magnetic rotary disk magnetic field, be magnetized and attract, along with the rotation of magnetic rotary disk is salvaged by disk, under the effect of cleaning shoe, floc sedimentation is blocked and is isolated in the zone of slagging tap, and clear water then enters clean water basin by pipeline.
Further, this paint waste water treatment system also is provided with pressure filter, and described pressure filter links to each other with the scarfing cinder zone of magnetic separating apparatus by the air pressure surge pump.After slag dump is placed on the scarfing cinder zone, is transported in the pressure filter by the air pressure surge pump and compresses, be pressed at last mud cake, the mud cake moisture after the press filtration is few, and it is convenient to process, and has saved because of the waste residue outward transport and has processed the high cost that produces.
Further, described flocculation pipeline is S shape, can prolong the residence time of waste water in the flocculation pipeline, improves solidifying wadding effect.
Further, described chemicals dosing plant also comprises the POC chemicals dosing plant, and POC is particulate organic carbon, can reduce the chemical oxygen demand value of waste water.
Further, described chemicals dosing plant comprises medicine-adding bin and is arranged at medicine-adding bin interior volume pump, aerator that described medicine-adding bin communicates with the flocculation pipeline by volume pump.Aerator can replace traditional stirrer that the medicament in the medicine-adding bin is stirred, and only needs the source of the gas of 0.2-0.4Mpa to get final product, and reaches energy-efficient effect.
Paint waste water treatment system of the present invention adopts the physics and chemistry treatment process; floor space is little, infusion of financial resources less, running cost is low; realized that really Oil Paint Slag captures automatically; saved manpower; reduced stop time; and effectively guaranteed the clean of recirculated water, and avoided affecting because of lacquer slag viscosity blocking pipe, water pump the back-pressure effect of spraying, prevented that paint waste water from directly discharging outside the factory and the secondary pollution that causes.
Description of drawings
Fig. 1 is the schematic diagram of paint waste water treatment system of the present invention.
Fig. 2 is the structure iron of the magnetic separating apparatus in the paint waste water treatment system of the present invention.
Fig. 3 is the structure iron of the chemicals dosing plant in the paint waste water treatment system of the present invention.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the paint waste water treatment system of present embodiment comprises sewage lagoon 1, the first water pump 2, flocculation pipeline 3, magnetic separating apparatus 4, the second water pump 5, clean water basin 6 and chemicals dosing plant, wherein the water inlet pipe of magnetic separating apparatus 4 communicates with sewage lagoon 1 by flocculation pipeline 3 and the first water pump 2, the rising pipe of magnetic separating apparatus 4 communicates with clean water basin 6 by the second water pump 5, the scarfing cinder zone of magnetic separating apparatus 4 links to each other with pressure filter 8 by air pressure surge pump 7. and described chemicals dosing plant communicates with flocculation pipeline 3, and described chemicals dosing plant sets gradually sodium hydroxide chemicals dosing plant 9 along the waste water flow direction, polymerize aluminum chloride chemicals dosing plant 10, polyacrylamide chemicals dosing plant 11, PF iron powder flocculation agent chemicals dosing plant 12 and POC chemicals dosing plant 13.
As shown in Figure 2, magnetic separating apparatus 4 comprises the mud-water separation groove 43 that is provided with water inlet pipe 41 and rising pipe 42, is installed on magnetic rotary disk 45, cleaning shoe 46 and scarfing cinder zone 47 in the mud-water separation groove 43 by rotating shaft 44, rotating shaft 44 links to each other with power set 49 by step-down gear 48, described cleaning shoe 46 is fixed between scarfing cinder zone 47 and the magnetic rotary disk 45, and contact with magnetic rotary disk 45, cleaning shoe 46 and scarfing cinder zone 47 are positioned at the sea line top of rising pipe 42, and the lower portion of magnetic rotary disk 45 is in the sea line below of rising pipe 42.
As shown in Figure 3, chemicals dosing plant comprises medicine-adding bin 20 and is arranged at volume pump 21, aerator 22 in the medicine-adding bin 20 that medicine-adding bin 20 is provided with dosing mouth 23.Medicine-adding bin communicates with the flocculation pipeline by volume pump.Aerator can replace traditional stirrer that the medicament in the medicine-adding bin is stirred, and only needs the source of the gas of 0.2-0.4Mpa to get final product, and reaches energy-efficient effect.
The principle of work of above-mentioned paint waste water treatment system is as follows: at first be pooled in the sewage lagoon 1 from paint spray room paint waste water out, then utilize the first water pump 2 to be drawn in the magnetic separating apparatus 4 by flocculation pipeline 3, waste water flow through the flocculation pipeline 3 in the time, chemicals dosing plant adds respectively corresponding medicament in the sewage and flocculates fully, coagulation, suspended substance in the paint waste water is effectively condensed, wherein sodium hydroxide (NaOH) plays the effect of regulating the waste water pH value, so that polymerize aluminum chloride (PAC) and polyacrylamide (PAM) play a role in reaction process better.Polymerize aluminum chloride is a kind of flocculation agent, is a kind of inorganic polymer coagulant, the inorganic polymer water treatment agent that molecular weight is large, electric charge is higher of producing owing to the polymerization of the bridging action of hydroxide ion and multivalent anions; Polyacrylamide is a kind of coagulant aids, is to make small flco agglomerated together become the water treatment agent of larger floc sedimentation.PF iron powder (having another name called magnetic, is a kind of Z 250) helps solidifying by polyacrylamide, can be rolled into large floc sedimentation with the small floc sedimentation of original flocculation.POC is particulate organic carbon, can reduce the chemical oxygen demand value of waste water.When waste water enters into the mud-water separation groove 43 of magnetic separating apparatus, paint slag has been flocculated and has embraced into floc sedimentation, and under the effect in magnetic rotary disk 45 magnetic fields, be magnetized and attract, along with the rotation of magnetic rotary disk 45 is salvaged by disk, under the effect of cleaning shoe 46, the floc sedimentation waste residue is blocked and is isolated in the zone 47 of slagging tap, and is transported in the pressure filter 8 by air pressure surge pump 7 and compresses, be pressed at last mud cake and processing, clear water then enters clean water basin 6 by pipeline.
Claims (5)
1. paint waste water treatment system, it is characterized in that comprising sewage lagoon, flocculation pipeline, the first water pump, the second water pump, chemicals dosing plant, magnetic separating apparatus, clean water basin, the water inlet pipe of described magnetic separating apparatus communicates with sewage lagoon by flocculation pipeline and the first water pump, and the rising pipe of described magnetic separating apparatus communicates with clean water basin by the second water pump; Described chemicals dosing plant communicates with the flocculation pipeline, and described chemicals dosing plant sets gradually sodium hydroxide chemicals dosing plant, polymerize aluminum chloride chemicals dosing plant, polyacrylamide chemicals dosing plant and PF iron powder flocculation agent chemicals dosing plant along the waste water flow direction; Described magnetic separating apparatus comprises the mud-water separation groove that is provided with water inlet pipe and rising pipe, is installed on magnetic rotary disk, cleaning shoe and scarfing cinder zone in the mud-water separation groove by rotating shaft, described rotating shaft links to each other with power set by step-down gear, described cleaning shoe is fixed between scarfing cinder zone and the magnetic rotary disk, and contacts with magnetic rotary disk.
2. paint waste water treatment system according to claim 1 is characterized in that this paint waste water treatment system also is provided with pressure filter, and described pressure filter links to each other with the scarfing cinder zone of magnetic separating apparatus by the air pressure surge pump.
3. paint waste water treatment system according to claim 1 is characterized in that described flocculation pipeline is S shape.
4. paint waste water treatment system according to claim 1 is characterized in that described chemicals dosing plant also comprises the POC chemicals dosing plant.
5. according to claim 1 and 2 or 3 or 4 described paint waste water treatment systems, it is characterized in that described chemicals dosing plant comprises medicine-adding bin and is arranged at volume pump, aerator in the medicine-adding bin, described medicine-adding bin communicates with the pipeline that flocculates by volume pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102744987A CN102992533A (en) | 2011-09-16 | 2011-09-16 | Paint wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102744987A CN102992533A (en) | 2011-09-16 | 2011-09-16 | Paint wastewater treatment system |
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| CN102992533A true CN102992533A (en) | 2013-03-27 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910410A (en) * | 2014-02-27 | 2014-07-09 | 江苏佳有环保科技有限公司 | Method for removing paint in spraying circulating water |
| CN104003493A (en) * | 2014-06-09 | 2014-08-27 | 机械工业第四设计研究院有限公司 | Novel circulating water slag removal system |
| CN104163536A (en) * | 2013-05-17 | 2014-11-26 | 北京中力信达环保工程有限公司 | Magnetic coagulation mine water underground purification technology |
| CN104692558A (en) * | 2015-02-09 | 2015-06-10 | 金东纸业（江苏）股份有限公司 | Coating wastewater recycling method and application thereof |
| CN105417812A (en) * | 2014-08-21 | 2016-03-23 | 宝山钢铁股份有限公司 | Zero emission method of cold rolled zinc electroplating wastewater |
| CN105461147A (en) * | 2015-12-21 | 2016-04-06 | 顾立锋 | Magnetic separation water body purification system and separation and purification method thereof |
| CN105692851A (en) * | 2016-04-21 | 2016-06-22 | 苏州云舒新材料科技有限公司 | Method for treating wastewater on basis of magnetic polyacrylamide |
| CN107540162A (en) * | 2017-09-13 | 2018-01-05 | 深圳市深水水务咨询有限公司 | The black and odorous water processing system and technique of a kind of high-efficiency compact |
| CN107902797A (en) * | 2017-11-18 | 2018-04-13 | 深圳市安东尼奥家具有限公司 | Paint sewage purifier |
| CN108218095A (en) * | 2018-02-28 | 2018-06-29 | 河海大学 | The industrial wastewater treatment system of magnetic-coagulation-membrane capacitance deionization technology integration |
| CN108423880A (en) * | 2018-05-07 | 2018-08-21 | 成都工业学院 | Pre-treating process for sewage |
| 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 |
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| CN101838080A (en) * | 2010-05-08 | 2010-09-22 | 李泽 | Magnetic seed type continuous sewage treatment method and device |
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| KR20020076659A (en) * | 2001-03-30 | 2002-10-11 | 장명화 | Treatment Equipment of Wastewater |
| CN101591110A (en) * | 2008-05-29 | 2009-12-02 | 中国石油化工股份有限公司 | A kind of oil refining sewage treatment technology |
| CN201427904Y (en) * | 2009-07-24 | 2010-03-24 | 四川德美环境技术有限责任公司 | Integrative groundwater treatment machine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163536A (en) * | 2013-05-17 | 2014-11-26 | 北京中力信达环保工程有限公司 | Magnetic coagulation mine water underground purification technology |
| CN103910410A (en) * | 2014-02-27 | 2014-07-09 | 江苏佳有环保科技有限公司 | Method for removing paint in spraying circulating water |
| CN104003493A (en) * | 2014-06-09 | 2014-08-27 | 机械工业第四设计研究院有限公司 | Novel circulating water slag removal system |
| CN105417812B (en) * | 2014-08-21 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of Zero emission method of waste water from electric galvanization in cold rolling |
| CN105417812A (en) * | 2014-08-21 | 2016-03-23 | 宝山钢铁股份有限公司 | Zero emission method of cold rolled zinc electroplating wastewater |
| CN104692558A (en) * | 2015-02-09 | 2015-06-10 | 金东纸业（江苏）股份有限公司 | Coating wastewater recycling method and application thereof |
| CN104692558B (en) * | 2015-02-09 | 2017-01-18 | 金东纸业（江苏）股份有限公司 | Coating wastewater recycling method and application thereof |
| CN105461147A (en) * | 2015-12-21 | 2016-04-06 | 顾立锋 | Magnetic separation water body purification system and separation and purification method thereof |
| CN105692851A (en) * | 2016-04-21 | 2016-06-22 | 苏州云舒新材料科技有限公司 | Method for treating wastewater on basis of magnetic polyacrylamide |
| 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 |
| CN107540162A (en) * | 2017-09-13 | 2018-01-05 | 深圳市深水水务咨询有限公司 | The black and odorous water processing system and technique of a kind of high-efficiency compact |
| CN107902797A (en) * | 2017-11-18 | 2018-04-13 | 深圳市安东尼奥家具有限公司 | Paint sewage purifier |
| CN108218095A (en) * | 2018-02-28 | 2018-06-29 | 河海大学 | The industrial wastewater treatment system of magnetic-coagulation-membrane capacitance deionization technology integration |
| CN108423880A (en) * | 2018-05-07 | 2018-08-21 | 成都工业学院 | Pre-treating process for sewage |
| CN108423880B (en) * | 2018-05-07 | 2020-08-11 | 成都工业学院 | Sewage pretreatment process |
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Application publication date: 20130327 |