Machine tool grinding fluid negative-pressure filtering circulating treatment system and process thereof

The invention relates to the technical field of machine tool grinding fluid treatment systems, and discloses a machine tool grinding fluid negative-pressure filtering circulating treatment system and a process thereof.The machine tool grinding fluid negative-pressure filtering circulating treatment system comprises a clean water tank and a stainless steel machining tool communicated with the output end of the clean water tank, and treated water in a water collecting tank is communicated and connected with the input end of a filtering device through the output end; the water subjected to secondary filtration is communicated and connected with the clean water tank again through the output end of the filtering device, the clean water tank communicates and connects the treated water with the input end of an acid-base neutralization, oil removal and precipitation treatment device through the output end, and precipitates of the acid-base neutralization, oil removal and precipitation treatment device are conveyed in