Paint wastewater treatment system
A wastewater treatment system and paint technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of high operating cost, secondary pollution and low reliability and other problems to achieve the effect of improving flocculation effect, reducing downtime and preventing secondary pollution
A wastewater treatment system and paint technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of high operating cost, secondary pollution and low reliability and other problems to achieve the effect of improving flocculation effect, reducing downtime and preventing secondary pollution
CN102992533AInactive Publication Date: 2013-03-27CHANGSHU KOHLER
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Embodiment 1
[0016] Such as figure 1 As shown, the paint wastewater treatment system of the present embodiment includes a sewage tank 1, a first water pump 2, a flocculation pipeline 3, a magnetic separation device 4, a second water pump 5, a clean water tank 6 and a dosing device, wherein the magnetic separation device 4 The water inlet pipe communicates with the sewage tank 1 through the flocculation pipeline 3 and the first water pump 2, the outlet pipe of the magnetic separation device 4 communicates with the clean water tank 6 through the second water pump 5, and the slag cleaning area of the magnetic separation device 4 communicates with the sewage tank 1 through the pneumatic diaphragm pump 7. The filter press 8 is connected. The dosing device is communicated with the flocculation pipeline 3, and the dosing device is sequentially provided with a sodium hydroxide dosing device 9, a polyaluminum chloride dosing device 10, a polyacrylamide dosing device along the waste water flow dire...
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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 [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a paint wastewater treatment system. Background technique [0002] No matter what kind of spraying method is used in the painting process, it is impossible to make the paint mist completely adhere to the surface of the coated workpiece, and a part of overspray paint mist will always be generated. Reducing the discharge of organic solvents, protecting the environment, saving energy and resources, reducing costs, and ensuring the quality of spraying are the directions that the painting industry is constantly pursuing, and efforts to improve the recovery rate of overspray paint are currently a bottleneck in the painting industry. Increased overspray recovery rate means reduced paint consumption costs, improved working conditions for operators, and benefits for fire protection and labor safety. At the same time, it reduces the cleaning frequency of the paint...
Claims
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Patent Timeline
27 Mar 2013
Publication
CN102992533A
- IPC
- C02F9/12; C02F1/52; C02F1/56
- Inventors
- 李俊波