Standards

MT/T 1220-2024 Active

MT/T 1220-2024 Technical specification for ray imaging to identify coal preparation

This document specifies the coal preparation design, coal preparation process, process performance evaluation, and environmental management of the X-ray imaging identification coal preparation technology.
This document is applicable to the process design and equipment performance evaluation of the X-ray imaging identification coal preparation technology. The corresponding process design of the optical ray imaging identification coal preparation technology can be implemented as a reference.

Publish Date: 2024-12-25

MT/T 1221-2024 Active

MT/T 1221-2024 Guidelines of remanufacturability evaluation for powered support parts

This document proposes basic guidelines, evaluation content, evaluation reports, and recommendations for the re-manufacturability evaluation of hydraulic support components.
This document is applicable to the re-manufacturability evaluation of restored hydraulic support components.

Publish Date: 2024-12-25

MT/T 1219-2024 Active

MT/T 1219-2024 Evaluation method of hydrogeological and engineering geological exploration of coal

This document stipulates the general requirements for the investigation and evaluation of hydrogeology and engineering geology in coal fields, the evaluation of hydrogeological conditions, the evaluation of engineering geological conditions, and the technical requirements for the evaluation results.
This document is applicable to the hydrogeological and engineering geological evaluation work in the reconnaissance, detailed investigation, and exploration stages of coal field geological surveys.

Publish Date: 2024-12-25

MT/T 1222-2024 Active

MT/T 1222-2024 Guidelines for remanufacturing engineering design of powered support

This document provides guidance and recommendations for the engineering design process of hydraulic support remanufacturing, and outlines relevant reference measures and implementation standards for the stages of hydraulic support recovery, remanufacturing solution design, remanufacturing production, reassembly and inspection, painting, labeling, and packaging.
This document is applicable to the comprehensive design of hydraulic support and/or component restorative remanufacturing systems, including recovery process solutions, remanufacturing production solutions, and remanufacturing management solutions.

Publish Date: 2024-12-25

MT/T 1218-2024 Active

MT/T 1218-2024 Technical specification for roadway to dynamic pressure roof-cuttig pressure relief by hydraulic fracturing in coal mine

This document specifies the requirements for pre-fracturing investigation and assessment, fracturing scheme design, sealing devices, fracturing fluids, and equipment for hydraulic fracturing to relieve roof pressure in coal mine dynamic pressure tunnels, and describes the methods for monitoring the construction process of hydraulic fracturing to relieve roof pressure and the monitoring of the effect of tunnel pressure relief.
This document is applicable to the construction of hydraulic fracturing to relieve roof pressure in underground dynamic pressure tunnels of coal mines.

Publish Date: 2024-12-25

MT/T 1223-2024 Active

MT/T 1223-2024 Code of practice for crop cultivation in land reclamation of open-pit coal mine dumping ground

This document stipulates the general requirements for crop planting in land reclamation of open-pit coal mines, land reclamation requirements, crop planting techniques, and management and monitoring requirements.
This document is applicable to crop planting in land reclamation of open-pit coal mines. For crop planting in land reclamation of other types of mines, the requirements in this document can be used as a reference for implementation.

Publish Date: 2024-12-25

MT/T 1217-2024 Active

MT/T 1217-2024 Ultrasonic testing method for coal mine belt conveyors'roller shaft in use

This document specifies the general requirements, inspection methods, inspection reports, and records for ultrasonic testing of the roller shafts of belt conveyors in use in coal mines.
This document is applicable to ultrasonic testing of the roller shafts of belt conveyors in use and during maintenance in coal mines. Other shaft-type forgings may also refer to and use this document for guidance.

Publish Date: 2024-12-25

MT/T 1224-2024 Active

MT/T 1224-2024 Code of practice for land reclamation,shrub and grass vegetation restoration in open-pit coal mine dumping ground

This document stipulates the general requirements for land reclamation and vegetation restoration of overburden dumps in open-pit coal mines, as well as the technical requirements for reclaimed land, vegetation restoration, management and monitoring, etc.
This document is applicable to the land reclamation and vegetation restoration of overburden dumps in open-pit coal mines. For other types of mine land reclamation and vegetation restoration, this document can be used as a reference.

Publish Date: 2024-12-25

MT/T 1216-2024 Active

MT/T 1216-2024 Belt conveyor for coal mines—Basic parameter and dimension

This document specifies the basic parameters and dimensions of the main components (rollers, idlers, frames) of belt conveyors used in workplaces such as underground coal mines, open-pit coal mines, and coal preparation plants.
This document applies to belt conveyors used in workplaces such as underground coal mines, open-pit coal mines, and coal preparation plants, which are supported by idlers and rely on the friction between the drive roller and the conveyor belt to transmit traction.
This document does not apply to special models such as round tube belt conveyors and corrugated sidewall belt conveyors.

Publish Date: 2024-12-25

MT/T 1215-2024 Active

MT/T 1215-2024 Tunnelling technical specifications for bolter-miner system

This document specifies the applicable requirements, design principles, selection and matching, technical requirements for tunneling process, and usage and management of the tunneling technology of the integrated drilling and anchoring units.
This document is applicable to the selection, design, and matching of integrated drilling and anchoring units, as well as the preparation of technical documents and guidance for construction in tunneling processes and procedures.

Publish Date: 2024-12-25

MT/T 1214-2024 Active

MT/T 1214-2024 General specification for traction converter of continuous mining

This document specifies the models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of the variable-frequency traction speed control device for continuous mining machines (hereinafter referred to as the "variable-frequency speed control device").
This document is applicable to the design, production, and inspection of variable-frequency traction speed control devices for continuous mining machines.

Publish Date: 2024-12-25

MT/T 1213-2024 Active

MT/T 1213-2024 Battery⁃powered mine rack rail train

This document specifies the models and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of battery-powered rack-and-pinion locomotives for mining use.
This document is applicable to the design, manufacture, and inspection and testing of battery-powered rack-and-pinion locomotives for underground coal mines (hereinafter referred to as "rack-and-pinion locomotives"), and can be used as a reference for battery-powered rack-and-pinion locomotives in non-coal mines.

Publish Date: 2024-12-25