REGENERATION METHOD AND REGENERATION SYSTEM FOR PARTING AGENT WASTE LIQUID OF ALUMINUM DIE CASTING MOLDING MACHINE, AND REGENERATION SYSTEM VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a regeneration technique which can easily regenerate water glycol based hydraulic fluid even without separating and removing the same expensively, can reduce a release agent waste liquid and can contribute to reduction in load on the earth environment, particularly, to provide a vehicle for a regeneration business. SOLUTION: A regeneration system for the release agent waste liquid of an aluminum die casting molding machine includes: an electric charge coalescer type oil separating system 2 applying voltage to the space between internal electrodes and accelerating oil-water separation; an electric power supply means 8 supplying driving power to the electric charge coalescer type oil separating system 2; a pH measurement means 3 measuring the pH value of the release agent waste liquid; a storage chamber 7 temporarily storing the waste liquid subjected to the oil-water removal treatment in the electric charge coalescer type oil separating system 2; a pH reduction liquid supply device 4 adding pH reduction liquid reducing the pH of the waste liquid to the inside of the storage chamber; and an addition amount control means 92 controlling the addition amount of the pH reduction liquid by the pH reduction liquid supply device 4 in such a manner that the pH of the waste liquid is controlled to the range of a prescribed range. COPYRIGHT: (C)2010,JPO&INPIT