"Hurriers and Thrusters" in the coal mines. In British coal mines, children typically had one of three jobs. Trappers, typically the youngest, would open and close the wooden doors–also called trap …

It is widely used in coal mine underground equipment positioning and information transmission. In view of the above problems, this research uses the WLR-5A mining unmanned wheeled chassis experimental platform; uses two UWB receivers to infer the position and yaw information of the vehicle in the underground roadway through the …

Modern room-and-pillar mining techniques require machines to shear coal from the faces of seams, and all the mined coal is loaded onto conveyor belts that transport it up the slope and out of the ...

The mission of the NIOSH research program for the mining sector is to eliminate occupational diseases, injuries, and fatalities among workers in the mining industry. Therefore, explosion protection research at NIOSH is focused on continually improving the safety of miners. Certain explosion-protected equipment used in other …

The detection and control of tunneling equipment groups based on machine vision has become a research hotspot in the intelligence process of coal mines. This study first introduces the key ...

Against this background, this research combines deep learning and text mining technologies to efficiently analyze hazard records for assisting hazard investigation: (1) 3900 historical hazard data from the Fenghuangtai coal mine are used for statistical analysis and text preprocessing; (2) Latent Dirichlet Allocation (LDA) topic analysis is ...

Likewise, continuous mining equipment in underground coal mining, along with draglines and bucket wheel excavators in surface coal mining, were key advances …

As a common excavation equipment in coal mine, bolter-miner plays an important role in the process of roadway tunneling. And it is essential to achieve the accurate measurement of position and ...

The former Soviet Union Coal Mine Machinery Design and Research Institute has developed a complete set of TKO-CBO equipment for high-pressure water spraying of coal shearers. The former West Germany also tested the effect of high-pressure water spray on the wetting and settlement of dust in the drum storage and cutting area in …

The intelligent construction of coal mines is a complex system of engineering; when the mine geological environment, production requirements, and mining status are different, the levels and standards …

Longwall mining machines are the most common machines used in underground coal mining. These mining tools are used to build underground galleries and tunnels by leveraging the machine's shearing capabilities. ... 2023—After over a year of preparation and research, the Elios 3 has successfully 3D mapped a vault built in the 1960s to store ...

The underground coal mines (UCM) exhibit many life-threatening hazards for mining workers. In contrast, gas hazards are among the most critical challenges to …

Coal mining research and development (R&D) are carried out by a range of organizations and entities—federal government agencies, state government agencies, equipment manufacturers, academic institutions, and industry. ... Further, MSHA evaluates new equipment and materials for use in mines at its Approval and Certification Center. It …

The underground coal mines (UCM) exhibit many life-threatening hazards for mining workers. In contrast, gas hazards are among the most critical challenges to handle. This study presents a comparative study of the sensor fusion methodologies related to UCM gas hazard prediction and classification. The study provides a brief theoretical …

This paper proposes a method to determine the distribution state of coal and rocks in the coal–rock mixed layer in the coal mining area by using machine …

These two figures captured most variants of surface coal mining and included essential equipment including mobile earth moving machinery along with surface installations like crushers and conveyors. In this section, the important moving …

Research and practice of intelligent coal mine technology systems in China. The role of coal as China's basic energy source is considered and the development of the coal industry is examined, and the intelligent development of coal mines is focused on, with the "Chinese mode" of intelligent mining in underground coal mines introduced. …

Coal Authority. Mine water is a plentiful source of heat, warmed by geological processes below ground (Credit: Coal Authority) A quarter of the UK's homes sit above abandoned coal mines, long ...

The trends of coal production, share of mining methods in production, machinery deployment in open cast mines, size and population of machinery, accidents due to machinery, types and causes of ...

Fa et al. (2021) explored the causes and internal causality of coal mine accidents from the four aspects of human, equipment, environment, and management, based on text mining and association rule technology. Li and Li (2020) used the Apriori algorithm to mine the association rules between accident causes and obtained a …

A coal production system is a complex social technology system, and its dynamic and nonlinear characteristics are affected by internal and external factors (He and Song, 2012; Zhang et al., 2020).The occurrence of a coal mine accident depends not only on human factors, machine factors, and environmental factors but also on more …

Major accomplishments in coal research15.3.1. Coal mining has become more productive. Mechanization has been at the center of research and development …

Intelligent mining has three main characteristics: ① Mining machines have the intelligent ability to work by themselves; ② real-time data can be captured and …

In 2021, China's coal usage increased at a 4.6% annual pace, accounting for 56.0% of the country's total energy consumption The process of coal mining is often accompanied by gas emission, a phenomenon that affects the safe production of coal mines and the personal health of mine workers and is a major safety hazard in coal …

2.2 Coal resources mining characteristics. With the active promotion of China's carbon peaking and carbon neutralization work, China's energy supply has achieved remarkable results and production has grown steadily (Zhang et al 2022; Li 2021).As shown in Fig. 2, the raw coal production of China was 4.13 billion tons in 2021, …

In surface mining, the ground covering the coal seam (the overburden) is first removed to expose the coal seam for extraction. The elements of a surface mining operation are (1) topsoil removal and storage for later use, (2) drilling and blasting the strata overlying the coal seam, (3) loading and transporting this fragmented overburden material (called …

The measurable effect of these actions should be the reduction of maintenance costs of equipment (machinery) and thus the reduction of production costs – coal mining. The paper presents an …

Mining is one of the most vital components of modern society due to the use of mined minerals in almost every consumer product. Additionally, 50% of the nation's energy comes from coal or nuclear power that uses uranium. To support this need for modern equipment, mines are found in all 50 states, including our home state of Nevada.

Mining safety is recognized as one of the factors influencing the mining industry's long-term viability. Therefore, we did a bibliometric analysis to take stock of safety management in the coal mining industry. This study suggests a three-step strategy, comprising literature extraction and screening, bibliometric analysis, and discussion, to …

Abstract. This article deals with reliability analysis of mining equipment such as shovels and dumper in a surface coal mine at The Singareni Collieries Co. Ltd., Telangana, by using the RBD and ...