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Efficient spray processing method for spray room

A treatment method and spray booth technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of secondary pollution, prone to odor, adhesion, etc., to ensure the life of the equipment, easy to use, and reduce production costs Effect

Inactive Publication Date: 2014-08-13
青岛协盈电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the wind pressure-water washing spray booth does not use a paint mist coagulant, the paint entering the circulating water is not debonded and condensed, and will adhere to the inside of the equipment, pipelines and pump body, causing blockage of the water and air channels, making the The purification system is not functioning properly
The paint mist coagulant currently on the market is mainly composed of aluminosilicate colloidal solution and poly-N-dimethylaminoacrylamide aqueous solution, which has high removal efficiency, but its cost is high, and the secondary pollution to circulating water is serious. The water is turbid and prone to odor, which cannot be used for a long time. The frequency of circulating water replacement is high, resulting in waste of water resources and secondary pollution, which is not conducive to painting production

Method used

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  • Efficient spray processing method for spray room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Select the polydimethyldiallyl ammonium chloride with a solid content of 15% of the stock solution, an ionization degree of 45%, and a molecular weight of 3,000,000, and dilute it to 50ml of an aqueous solution with a dry powder mass percentage of 1.2%, and select the aluminum oxide mass percentage content as 32%. Polyaluminum chloride with a basicity of 85% is diluted with water to 25ml of an aqueous solution with a dry powder mass percentage of 20%, and the selected montmorillonite content is 50%, the pH value is 5, the expansion multiple is 10, and the particle size is 50 mesh sodium bentonite , and diluted with water to 25ml of an aqueous solution with a mass percentage of dry powder of 0.5%, poured into the circulating water of a 10L air pressure-water washing spray booth, it can be found that the paint in the water loses its viscosity quickly, and the paint is condensed into crisp clumps floating on the water surface , easy to salvage, ensure the normal operation o...

Embodiment 2

[0051] The only difference between this example and Example 1 is that the components and proportions of the paint mist coagulant are different. Polyacrylamide with a molecular weight of 6 million and a solid content of the stock solution of 0.2% is selected and diluted to 200ml of an aqueous solution with a mass percentage of dry powder of 2%. Aluminum sulfate with a mass percentage content of 11% and a basicity of 50% is diluted with water to 100ml of an aqueous solution with a dry powder mass percentage of 10%. The montmorillonite content is 95%, the pH value is 9, and the expansion factor is 50. Calcium-based bentonite with a particle size of 3000 meshes, diluted with water to 100ml of an aqueous solution with a dry powder mass percentage of 20%, added to 200L of circulating water produced after spraying with 820-BSG-338 black solvent-based paint primer, wherein polyacrylamide and The volume ratio of the paint is 1:30. After stirring for half an hour, a large number of massi...

Embodiment 3

[0053] The only difference between this example and Example 1 is that the components and proportions of the paint mist coagulant are different, and polydimethyldiallyl chloride with a solid content of 12% of the stock solution, an ion degree of 48%, and a molecular weight of 4 million is selected. Ammonium, diluted to 100ml of an aqueous solution of 1.1% by mass percentage of dry powder, aluminum sulfate with a mass percentage of alumina content of 11% and a basicity of 50%, diluted with water to 50ml of an aqueous solution of 11% by mass of dry powder, and the selected montmorillonite content is 98%, the pH value is 9, the expansion multiple is 50, and the particle size is 3000 mesh lithium-based bentonite, and diluted with water to 50ml of an aqueous solution with a dry powder mass percentage of 20%. In the 80L circulating water produced, the volume ratio of polydimethyldiallylammonium chloride to paint is 1:10. After stirring for half an hour, a large number of blocky holes ...

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Abstract

The invention discloses an efficient spray processing method for a spray room. Circulating water treated by using the method is non-poisonous, is non-corrosive and has no harm to human bodies, the application range is wide, the method is suitable for all coatings, the using manner is simple and convenient, the purpose is realized as the adding is performed by a metering pump or in a manual manner, a spray processing agent is added by using the method disclosed by the invention, coating slags in the circulating water do not have adhesion, high in the floating efficiency, and easy to refloat; the circulating water is limpid, the PH value is neutral, the service life of equipment is guaranteed, the circulating water does not have peculiar smell and is convenient to use for a long time, a water source is saved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a high-efficiency paint mist treatment method used in a paint spray booth, which is used for removing paint in circulating water. Background technique [0002] If the equipment is exposed to the air or the external environment for a long time, it is prone to rust or other chemical reactions, causing damage to the equipment and affecting its service life and functions. Therefore, it is necessary to spray paint on the surface or wall of the equipment. During the air spray painting process, a large amount of paint mist and organic solvent gas are produced, which affects the health of the operator and seriously pollutes the surrounding environment and air. In the 1980s, the painting system of the wind pressure-water washing spray booth began to be used in China, which made a leap in the painting method, greatly improved the painting quality, and greatly reduced the pollution to the environment. At the same time, a subsidiary produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
Inventor 古传贵
Owner 青岛协盈电子有限公司
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