Data Extraction. The following (Table 2) summarizes the causes of safety issues, environmental factors, and technology reported in each study: design of each study, methodology used to analyze data, the sample size, and the findings were identified in detail.The variables reported as causes of or contributory factors to safety issues and …Web

The continuous miner technology (CMT) is being adopted extensively in underground coal mines of India as mass production technology. This technology potentially eliminates the two-unit operating, namely the drilling and blasting. This elimination helps for better strata control and avoids the drillers working in unsafe conditions, maybe …Web

1. Introduction. Intelligent mining, which is based on mechanized and automatic mining methods and which combines informatization with industrialization, has brought about a revolution in the coal industry [1].This new technology can carry out mining automatically by intelligently perceiving the circumstances around the work face, …Web

An ongoing resurgence of occupational lung disease among coal miners in the United States has been linked to respirable crystalline silica (RCS). To better protect miners, a deeper understanding of key exposure factors is needed. As part of a larger investigation of RCS in 15 coal mines, this paper describes analysis of silica mass …Web

a coal mine, in the surface work areas of an underground coal mine, in a surface coal mine, in a non-coal mine, in the mine equipment manufacturing industry, or in any other industry using or manufacturing similar equipment, and has satisfactorily completed a coal mine electrical training program approved by the Secretary; or,Web

This research paper compares non-RF techniques, such as magnetic induction, visible light, and acoustic, for positioning within an underground mine. The study evaluates each technique's accuracy ...Web

Background and Objectives: Coal mine injuries commonly occur, affecting both the safety and health of miners, and the normal operation of the coal mine. Accordingly, this study aimed to explore the regularity of injury and injury-related risk factors in coal mines in China so as to establish a scientific basis for reducing the incidence and …Web

According to data from the National Mine Safety Supervision Bureau, there are 4,495 coal mines in China in 2020, 4,173 of which are underground mines, and the remaining 358 are open-pit coal mines ...Web

In this study, an optimization model was established based on the generalized contrastive weighted comprehensive scale index method. This model gives the evaluation indicators of SO2, NOx, CO, …Web

Mining in India is having long history, since ancient age; however, nowadays India is implementing some of the cutting-edge coal production technologies; such as Continuous Miner (CM) dedicated to ...Web

China suffers the worst coal mine disasters in the world. Lots of miners lose their lives or suffer occupational injury. Fortunately, China is developing vigorously intelligent coal mining, which is the combination of traditional coal mining and the latest technology. Mining expects to relieve or solve coal mine safety, health and intensive labor issues …Web

two methods of underground mining in the West: 1) room and pillar with contin-uous miners, and 2) longwall mining; recent underground mining technology developments in Europe and the West-ern United States that could affect the production of coal from Federal leases; and factors affecting the choice of these un-derground coal mining technologies inWeb

The present study focuses on the estimation of underground mining machinery such as the load–haul–dump machine performance characteristics using …Web

This paper aims to identify the various factors and problems affecting the productivity of underground coal mines adopting the bord and pillar method of mining …Web

Typically, by drilling, blasting, cutting, or digging. Equipment for material handling: For sorting and loading the mined material in advance of processing, or to go to a waste area. Machinery for material processing: Turning the mined material into finished products. This may involve grinding, separating, crushing, refining, and smelting.Web

The technology of coal mining has gone through continual evolutions and several revolutionary changes which transformed the methods, equipment, and productivity over the decades. In recent years, advances in technology focused more on the use of communication systems, automation, and data sciences for the health and safety of the …Web

hotspot in the intelligence process of coal mines. This study first introduces the key technologies of a visual ... Positioning and navigation of underground mining equipment and personnel. J.T ...Web

In this study, the performance of the underground mining machinery known as load haul dumper (LHD) has been estimated with …Web

Abstract. The continuous miner technology (CMT) is being adopted extensively in underground coal mines of India as mass production technology. This …Web

3.1 Smart mining and problem origin. We obtained some operational equipment and coal seam data in a working face from a coal mine located in China's Shandong region. The smart level of this working face is high, and it adopts the technologies of shearer memory cutting, hydraulic support automatic following shearer moving, remote …Web

In addition, continuous monitoring of underground coal mines for early detection of fires is very significant from the mines safety point of view. During an underground emergency such as fire, explosion, roof collapse, or water inundation, mine rescue teams are frequently called upon to save lives. It is really important that the …Web

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 ...Web

In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and overlying and underlying strata. Depillaring is one of the most dangerous phases of underground coal mining. Even after centuries of experience in underground coal mining, there is no …Web

The platform can monitor and record working conditions data of the coal mine production systems as well as location information of underground equipment and miners. Based on cloud computing techniques, big data related to underground coal mining can be analyzed quickly, and critical data associated with user requirements can be extracted …Web

Congcong Gu. Automatic positioning technology of underground vehicles has become the key technology for the intelligent development of coal mines. To improve the comprehensive positioning accuracy ...Web

In this study, the performance of the underground mining machinery known as load haul dumper (LHD) has been estimated with reliability analysis. The best-fit distribution of the data sets was ...Web

An exhaust fan will be used to ventilate the underground coal mine. For this purpose, three different fans that were feasible and appropriate to this mine were considered. These fans are identified as Fan 1, Fan 2 and Fan 3. The AHP methodology was used to compare the fans with the aim of installing a fan into Shaft-2 of the coal mine.Web

Hasheminasab et. al. (2019) conducted research to determine the effect of different types of auxiliary ventilation on the distribution and concentration of methane in a driven dog heading of an underground coal mine. A study by Ren et al. (2018) showed the results of model studies aimed at determining CO 2 concentration levels at the boundary ...Web

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 …Web

With the large-scale mining of coal resources, the huge economic losses and environmental problems caused by underground coal fires have become increasingly prominent, and the research on the status quo and response strategies of underground coal fires is of great significance to accelerate the green prevention and control of coal …Web

This study considered the role of coal as China's basic energy source and examines the development of the coal industry. We focused on the intelligent development of coal mines, and introduced ...Web

Drones. Underground mining drones, like Flyability's Elios 3, are used for visual inspections in stopes, ore passes, ventilation shafts, conveyor belts, and other areas of an underground mine.. Drone technology has allowed inspections to be conducted in areas that are unsafe for humans to enter, presenting an invaluable tool in such hazardous …Web

The object of this study is to identify the safety hazards present in Indian underground coal mines and to build a preliminary database of the identified hazards. Accident data collected from the ...Web

percent of which (221 million short tons) was produced in underground coal mines by 24,000 workers in 15 states. Underground coal mining is a highly specialized industry. The combination of the harsh environment, heavy equipment, physical hazards, and potentially toxic and combustible atmospheresWeb

2008 Barabady et al. Reliability analysis of mining equipment: a case study of a crushing plant at Jajarm Bauxite Mine in Iran Performance of crushing plants 2011 Esmaeili et al. Reliability analysis of a fleet of loaders in SANGAN iron mine Performance of loaders 2014 Furuly et al. Availability analysis of the main conveyor in the Svea Coal ...Web

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 …Web

Reducing harmful air emissions in underground mining. Two of the biggest threats to the health of our people working underground are from air emissions generated during the mining process: diesel exhaust from machinery, which contains diesel particulate matter (DPM), and coal mine dust. The BHP Mitsubishi Alliance Broadmeadow underground ...Web