Research on the Quenching Medium Recycling Technology Based on a Melting-Solution Confluence Method

Abstract

In order to avoid the direct discharge of wastewater and the environmental pollution caused by the metal parts quenching treatment, a three-level micro-water washing system is designed, which uses a small amount water to clean the quenched metal parts. The melting-solution confluence method is introduced at the first time to realize the recycling usage of quenching medium in the waste water. The test results show that the use of the technology can achieve maximum water conservation and the quenching medium materials recycling, so that the method does not waste water and the media materials can be recycled more than 90%, and the water consumption is also reduced to nearly 1/20 compared with the original one in the whole production process. The method can be applied not only to shovel type metal parts heat treatment process, also to the related industries.