The Process Treatment of Cutting Waste Liquid

The cutting waste liquid is classified as HW09 oiled wastewater, which is a hazardous waste from unspecified industry. It seriously affects the production and operation of cutting fluid industry and machinery manufacturing enterprises and forces the upgrading of technology and management.

From the development process of cutting fluid, the reason for switching from oil to emulsion is cost. With cutting pure oil, one advantage is that it does not have to be replaced for a long time, and the other is that the processing effect is very good. The disadvantage is that in order to speed up efficiency, it is easy to catch fire which is high risk to enterprise's property. So during high-speed cutting processing, it must use of mixture of oil and water.

With the environmental pressure, to return to pure oil cutting oil is not realistic. On the other hand, even so, the use of pure oil will also produce VOCs, and the difficulty of treatment is not lower than that of oily wastewater.  

At present, under the pressure of environmental protection, many enterprises develop the environmental protection equipment to treat HW09 oil wastewater. According to the current market, there are two main oil wastewater treatment methods, one is distillation, the other is membrane filtration.

Greenlan can provide heat pump low temperature vacuum distillation process. In terms of the solution characteristics of cutting fluid, it is a dilute solution with organic compounds as the main solvent and water as the solvent, and the proportion of water is more than 95%. Among the components of cutting fluid, the boiling point is not consistent, and the boiling range is also very different. Distillation is to use of cutting fluid components of different substances in the boiling point and boiling range difference, for fractionation. The use of different pressure, temperature, mixing characteristics, adding azotropium and other technical means, to achieve controllable cost of different substances separation, the harmful substances will be sent to the hazardous waste station, the water is separated out for recycling or discharged.

Greenlan Cutting Liquid Treatment Equipment: Heat Pump Vacuum Low Temperature Evaporator

The Cutting Liquid Treatment Effect