On-line purification equipment for metal machining fluid and purification method thereof

Abstract

The invention discloses on-line purification equipment for a metal machining fluid and a purification method thereof. The equipment comprises a purification fluid tank, a stock solution tank, a magnetic separation pool, a magnetic slag tank, a drum type multi-stage magnetic separation device, a gas-liquid mixing pump, an ozone generator, an ozone copolymerization air-float sterilization separation device and a Y-shaped water outlet pipe, wherein the drum type multi-stage magnetic separation device adopts a drum-shaped structure, the inner wall of the drum is embedded with a plurality of same permanent magnets at certain intervals along the same axial direction; and the inside of the ozone copolymerization air-float sterilization separation device is orderly provided with a grid, a baffle plate and an ozone contact generator from bottom to top, and the upper part of the ozone contact generator is a separation zone. The method comprises the main steps of magnetic separation, gas dissolution, sterilization and water and slag discharge. The method has the advantages of realizing the on-line circular purification and use of the machining fluid, prolonging the service life of the machining fluid, greatly reducing the amount of waste fluid generated and achieving the aims of water conservation, emission reduction and clean production.

Description

technical field [0001] The invention relates to an industrial waste water purification equipment and a purification method thereof, in particular to an online purification equipment and a purification method of metal cutting fluid in the process of turning, grinding, cutting, rolling and the like. Background technique [0002] With the rapid development of modern machinery manufacturing industry, cutting fluid has been widely used in machining, and the consumption has increased rapidly. However, during the use of metal cutting fluid, due to the action of high temperature discharge oxidation, microorganisms, metal dust, oxygen and carbon dioxide and other environmental media, it will be corrupted and deteriorated, so it needs to be replaced regularly. Metal cutting fluid contains a large amount of oil, surfactant, iron filings, etc. If the replaced waste fluid is directly discharged into the water body without any treatment, it will seriously pollute surface water and groundw...

AI Technical Summary

Problems solved by technology

This technology usually has the disadvantages of complex equipment, large volume, high energy consumption, poor oil separation effect, and incomplete removal of microorganisms.

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