Purifying equipment for prolonging service life of cutting fluid, and purification method thereof

Abstract

The invention discloses purifying equipment for prolonging the service life of a cutting fluid. The purifying equipment comprises a self-priming swage pump, a copolymerization separating device, a sterilizer, a selective adsorbing device, a multi-phase medium pump and an electric control box, wherein a water inlet tube I of a to-be-purified cutting fluid is connected with a water inlet tube II of the copolymerization separating device by the self-priming sewage pump; the copolymerization separating device comprises a reaction region and a separation region, wherein the reaction region is provided with a contact mixing reaction tube, and the separation region is provided with a three-phase separator; a floating oil residue discharge tube is further arranged at the upper part of the copolymerization separating device; the copolymerization separating device is communicated with the sterilizer; the sterilizer is communicated with the selective adsorbing device; a discharged water overflow weir is arranged at the middle upper part of the selective adsorbing device and communicated with a purified cutting fluid outlet tube; the multi-phase medium pump is communicated with the selective adsorbing device; and the multi-phase medium pump is further communicated with the contact mixing reactor. The invention simultaneously further discloses a purification method of the equipment. The purifying equipment disclosed by the invention prolongs the service life of the cutting fluid, greatly reduces the amount of waste liquid generated, and realizes water conservation, emission reduction and clean production.

Description

technical field [0001] The invention relates to an industrial waste water purification equipment and its purification method, in particular to a purification equipment and its purification method for prolonging the service life of cutting fluid in the machining process of turning, grinding, cutting, rolling and the like. Background technique [0002] Cutting fluid plays a role in cooling, lubricating, cleaning and rust prevention in machining, steel manufacturing, bearing processing and other processes. Cutting fluid is one of the metal processing lubricants used in large quantities in the locomotive and automobile manufacturing industries. It has good lubricity, cooling and cleaning properties, and is widely used in various cutting processes. However, its biggest disadvantage is that it is easily corrupted and deteriorated during use, the stability of the working fluid is poor, and the service life is short. Especially in the hot summer in the south, the use cycle is only ...

AI Technical Summary

Problems solved by technology

[0004] Some studies have been done on how to prolong the service life of cutting fluid at home and abroad. It is believed that it is necessary to do a good job in daily use and regular management. Regular addition of fungicides and preservatives to the used fluid can produce better results and make the cutting fluid The service life has been extended to a certain extent, but due to the gradual drug resistance of microorganisms, the effect is getting worse, and the added fungicides and preservatives are not good for the health of operators, and may also increase the difficulty of treating waste liquid. , and it is inconvenient to operate in the actual application process, so the actual application is decreasing now; the existing cutting fluid purification equipment is mainly used to reduce the particulate matter, oil, and fine micron-sized particles in it, mainly using precipitation, magnetic separation, media Filtration, Hoffman separation, centrifugation and other methods have good effect; anti-corrosion is regularly added anti-mold and sterilization, the actual use effect is not ideal; in the process of use, oil slick, miscellaneous oil, continuous sterilization and anti-corrosion, odor separation, and the separation of active ingredients There are not many effective methods for supplementation and so on; comprehensive research on the reasons for the deterioration and replacement of cutting fluid is not deep enough, and the purification equipment that adopts comprehensive methods to purify so that it can maintain the use index for a long time needs further research and development

Existing equipment technology usually has disadvantages such as complex equipment, large volume, high energy consumption, poor sludge separation effect, incomplete removal of microorganisms, and low purification and separation efficiency of fine particles.

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