Paint waste residue treatment method

Abstract

The invention belongs to the technical field of paint waste treatment, and particularly discloses a paint waste residue treatment method. The method comprises the following steps of (1) adding paint waste residue into water for rinsing, adding a mixture to be used as a paint mist flocculant, and carrying out stirring reaction for 2-5 hours, wherein the mixture is composed of sodium hydroxide and water glass in a mass ratio of 1 to (1 to 3); (2) selecting the paint waste residue mixture subjected to the rinsing in the step 1; (3) adjusting the pH of the mixture obtained in the step 2 to be neutral, and performing dehydration treatment; (4) adding the paint waste residue obtained in the step 3 into a solvent to be dissolved and uniformly dispersed, and grinding till the fineness is appropriate for later use; (5) adding resin and pigment and filler into the solvent to be stirred, mixed and uniformly dispersed, and grinding till the fineness is qualified for the later use; and (6) adding the mixture obtained in the step 4 and the mixture obtained in the step 5 into a stirring tank to be stirred and blended uniformly, and filtering the mixtures through a screen with 500-800 holes so asto obtain a finished painting after packaging.

Description

technical field [0001] The invention relates to the technical field of paint waste treatment, in particular to a treatment method for paint waste. Background technique [0002] In the paint spraying process, the effective coating rate of the paint is limited. Generally, when the ordinary air spray gun is used for operation, the coating efficiency is only about 30%, even if the electrostatic spraying is used, the coating efficiency is only 60%. Left and right, that is to say, in the process of spraying operation, only part of the paint is sprayed on the workpiece, and another part is splashed in the operation room of spraying operation, forming a large amount of paint waste. At present, the treatment of paint waste is generally It is very difficult. Burning will produce a large amount of black smoke, causing secondary pollution, and the disposal of landfill garbage will cause serious harm to the environment. Therefore, making full use of paint waste and turning waste into tre...

AI Technical Summary

Problems solved by technology

[0002] In the paint spraying process, the effective coating rate of the paint is limited. Generally, when using an ordinary air spray gun for operation, the coating efficiency is only about 30%, even if the electrostatic spraying is used, the coating efficiency is only 60%. Left and right, that is to say, in the process of spraying operation, only part of the paint is sprayed on the workpiece, and another part is splashed in the operation room of spraying operation, forming a large amount of paint waste. At present, the treatment of paint waste is generally It is very difficult. Burning will produce a large amount of black smoke, causing secondary pollution, and the disposal of landfill garbage will cause serious harm to the environment. Therefore, making full use of paint waste and turning waste into treasure is beneficial to the limited The excellent use of resources is also a contribution to environmental protection