Self-circulation type chemical degreasing method

Abstract

The invention discloses a self-circulation type chemical degreasing method. The method comprises the following steps: injecting hot water into a degreasing chamber; injecting degreasing powder into the hot water in the degreasing chamber to form solution; starting a stirrer to stir the solution; enabling metal parts to enter the degreasing chamber to be soaked in the solution; acquiring the first temperature of the solution in real time; and comparing the first temperature with the preset second temperature, and gradually extracting and heating the solution in the degreasing chamber and then circulating the solution back to the degreasing chamber when the first temperature is lower than the second temperature. The method has the beneficial effects that the wastewater after treatment is easy to treat; the degreasing effect is good; and the degreasing speed is high.

Description

technical field [0001] The invention relates to a self-circulating chemical oil removal method. Background technique [0002] Before performing surface treatment on metal parts, such as galvanizing, it is first necessary to remove the oil on the surface of the metal parts. The most important method is chemical degreasing. First, introduce water into the degreasing tank and add degreasing powder; The parts are immersed in the degreasing tank, and the oil stains on the surface of the metal parts are removed through saponification reaction or emulsification reaction. However, the actual treatment process is relatively slow, and the effect of removing oil stains is not good, which needs to be improved urgently. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to propose a self-circulating chemical degreasing method, the treated waste water is easy to handle, the degreasing effect is good, and the degrea...

AI Technical Summary

Problems solved by technology

[0002] Before performing surface treatment on metal parts, such as galvanizing, it is first necessary to remove the oil on the surface of the metal parts. The most important method is chemical degreasing. First, introduce water into the degreasing tank and add degreasing powder; The parts are immersed in the degreasing tank, and the oil stains on the surface of the metal parts are removed through saponification reaction or emulsification reaction. However, the actual treatment process is relatively slow, and the effect of removing oil stains is not good, which needs to be improved urgently.