Liquid filtration method

摘要

Machine tool coolant containing solid particles is allowed to separate under gravity in a tank 6, and the upper layer of clarified coolant is progressively withdrawn for re-use as settling of solid particles towards the tank floor proceeds. This reduces the total settling time compared with waiting for complete separation before withdrawing the liquid. Liquid can be withdrawn over a vertically adjustable weir P or through a float-support pipe 9.