GB/T 42867-2023 (English Version)

Standard No.: GB/T 42867-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42867-2023

Scope: This document stipulates the general principles and technical requirements for the comprehensive utilization of coal mine pre-drainage. This document is applicable to the comprehensive utilization of coal mine pre-drainage in the design and production stages, and other mines can refer to it for implementation.

Introduction

1. Background and significance of standard formulation

With the rapid development of my country's coal industry, the comprehensive utilization of coal mine pre-drainage has become an important technical means to ensure mine safety and improve the efficiency of water resource utilization. The formulation of this standard aims to standardize the treatment and utilization process of coal mine pre-drainage, ensure that it meets relevant water quality requirements, and provide scientific technical guidance for coal mining enterprises.

2. Comparative analysis of standard frameworks

Standard dimensions	GB/T 42867-2023	Comparison standards	Technical advantages
Scope of application	Comprehensive utilization of pre-drainage in coal mines	Other mines may refer to it for implementation	Highly targeted, suitable for the special environment of coal mines
Water quality requirements	Comply with GB 5749, GB/T 11446.1 and other standards	High flexibility	Ensure water safety and strict technical requirements
Process flow	Includes multiple utilization methods such as drinking water and electronic grade water	Mainly single treatment mode	Diversified utilization to enhance resource value

3. Practical application case analysis

Take a coal mining enterprise as an example. In the pre-drainage treatment, filtration, reverse osmosis and other processes are used, and the pre-drainage is successfully used in the industrial circulating cooling water system. This case not only reduces the water resource cost of the enterprise, but also significantly improves the ecological environment of the mining area.

4. Technical implementation suggestions

It is recommended that enterprises select appropriate pre-drainage treatment processes according to their own needs, giving priority to the process recommended in Appendix B.
In actual operation, water quality indicators (such as turbidity, pH value, etc.) should be monitored regularly to ensure that they meet the requirements of relevant standards.
Strengthen technical training to improve practitioners’ knowledge and operational capabilities of pre-drainage comprehensive utilization technology.

GB/T 42867-2023 Referenced Document

GB 5749 Hygienic Standards for Drinking Water
GB/T 11446.1 Electronic grade water
GB/T 12145 Quality criterion of water and steam for power plant and steam-generating equipment
GB/T 1576 Water quality for industrial boilers
GB/T 19223 Classification of coal mine water
GB/T 19772 The reuse of urban recycling water Water quality standard for groundwater recharge
GB/T 50050 Code for design of industrial circulating cooling water treatment
GB/T 50562 Coal mine engineering basic term standard

GB/T 42867-2023 history

2023 GB/T 42867-2023 Technical guidelines for comprehensive utilization of pre-drainage in coal mines