隔膜压榨废浆处理装置在地质钻探中的应用

Application of diaphragm pressing waste slurry treatment device in geological drilling

摘要:

地质钻探过程中产生的废弃冲洗液常含有钻屑、各种化学处理等污染物。这些污染物具有高色度、高化学需氧量（COD）、高悬浮物等特性，如果直接排放，对周边土壤、水质、生物等环境生态造成影响。随着绿色勘查理念在地质钻探领域的深入贯彻，隔膜压榨废浆处理装置应运而生并发挥着重要作用。本文主要介绍TGYG型隔膜压榨废浆处理装置，以小型撬装模块化结构为设计理念，通过给料泵将废浆输入到由隔膜板和滤板组成的滤室中，当废弃冲洗液充满滤室后，液压系统推动隔膜对滤室内的废弃冲洗液施加压力，在压力作用下，滤液通过滤布经滤板上的排水通道排出，固相颗粒则被截留在滤室内，从而实现固液分离。在河南驻马店地区中深孔地质钻探过程中，开展废弃冲洗液无害化处理现场应用，分离固相含液率降低到20%以下，大幅减少了废弃冲洗液的体积和质量，有效降低环境污染，促进资源回收利用，为地质钻探废弃冲洗液无害化处理提供了宝贵实践经验，可有效助力新一轮找矿突破战略行动全面落实绿色勘查工作。

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.