Paint spray mist coagulant for circulating water treatment system of paint spray booth

Abstract

The invention relates to a paint spray mist coagulant which shows a good effect on viscous dissipation and coagulation for a solvent-based coating and a water soluble coating. The paint spray mist coagulant is especially applicable to circulating water treatment of a wet type paint spray mist removal system. The paint spray mist coagulant comprises an agent A, an agent B and an agent C, wherein the agent A is a linear high-molecular polymer which has high electric neutrality and can quickly neutralize the paint particle charge and warp the paint particles to realize viscous dissipation; the agent B is an aqueous solution prepared through etherified modified potato starch waste residues with molecular weight of 50,000 to 60,000, which enables the viscosity-free paint particles to be collected; the agent C is used for regulating the pH (Power of Hydrogen) of the circulating water. The invention also provides a preparation method and application of the paint spray mist coagulant. The paint spray mist coagulant is simple in preparation method and convenient in application; the potato starch waste residues are utilized as the raw materials of the agent B, so that the secondary utilization of wastes is realized, and the effect of treatment of wastes with processes of wastes against one another is reached; in addition, the paint spray mist coagulant has the biodegradability so that secondary pollution caused by the application in water can be avoided, and the environmental load can also be reduced effectively.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control and relates to a paint mist coagulant used in a circulating water treatment system of a wet spray paint booth. Simultaneously, the invention also relates to a preparation method and application of the paint mist coagulant. Background technique [0002] This product is mainly used in the painting process of household appliances, electronic products, construction machinery, auto parts, motorcycles and other industries. Since about 20~60% of the paint is not attached to the device during the painting process, this part of the paint is called Overspray paint. These paints contain a large amount of volatile organic solvents that are harmful to human health and need to be cleaned up in time. If the paint is dropped on the ground, it is difficult to clean up. Therefore, the painting industry usually uses a wet spray booth circulating water system to capture oversprayed paint. Or...

AI Technical Summary

Problems solved by technology

However, recent experiments have shown that although polyacrylamide is safe and non-toxic, its decomposed acrylamide monomer is a neurotoxic agent, which can damage the nervous system. After poisoning, it will show symptoms such as body weakness and movement disorders.