Application of diaphragm pressing waste slurry treatment device in geological drilling

Abstract:

The waste flushing fluids generated during geological drilling operations often contain pollutants such as cuttings and various chemical treatments. These pollutants are characterized by high chromaticity， high chemical oxygen demand （COD）， and high suspended solids. If directly discharged， they will have an impact on the surrounding soil， water quality， organisms， and other aspects of the environmental ecology. With the in-depth implementation of the concept of green exploration in the field of geological drilling， the diaphragm press waste slurry treatment device has emerged and played an important role.This article mainly introduces the TGYG-type diaphragm press waste slurry treatment device， which is designed based on the concept of a small skid-mounted modular structure. The waste slurry is pumped into the filter chamber composed of diaphragm plates and filter plates by a feeding pump. After the waste flushing fluid fills the filter chamber， the hydraulic system pushes the diaphragm to apply pressure to the waste flushing fluid in the filter chamber. Under the action of pressure， the filtrate passes through the filter cloth and is discharged through the drainage channels on the filter plates， while the solid-phase particles are retained in the filter chamber， thus achieving solid-liquid separation.During the medium-deep hole geological drilling operations in the Zhumadian area， Henan Province， on-site applications of harmless treatment of waste flushing fluids were carried out. The liquid content in the separated solid phase was reduced to less than 20%， greatly reducing the volume and mass of the waste flushing fluids， which effectively reduces environmental pollution， promotes the recycling of resources， provides valuable practical experience for the harmless treatment of waste flushing fluids in geological drilling， and can effectively assist the full implementation of green exploration work in the new round of strategic actions for mineral prospecting breakthroughs.