System for do not use coolant liquid in metalworking

The utility model discloses a system for do not use coolant liquid in metalworking, including fine bubble generating device, fine bubble generating device includes alkaline solution storage jar, the import and the alkaline solution storage of alkaline solution storage jar are connected for supplementary jar, the export of alkaline solution storage jar is passed through the force (forcing) pump and is connected with the gas -liquid mixture jar, the export of gas -liquid mixture jar shoots out to be connected with the nozzle with fine bubble through squeezing parts, fine bubble shoots out with the processing position of nozzle towards the lathe, the processing position's of lathe below is equipped with machining liquid and retrieves the jar, the export of machining liquid recovery jar loops through liquid and send the pump, fine sheetmetal retrieve the filter with the access connection of alkaline solution storage jar. Can regard as the cooling alkaline solution emergence equipment that replaces original coolan