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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
The two major underground methods are referred to as the room-and-pillar method and the longwall method. In both methods, the coal seam is developed by …Web
قرأ أكثر
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
قرأ أكثر
Rapid excavation could mitigate the imbalance relationship between excavation speed and production needs that plays a pivotal role in the sustainable development of large underground coal mines. This paper provides a case study on Bolter Miner Rapid Excavation Technology (BMRET) in Menkeqing Coal Mine, which …Web
قرأ أكثر
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
قرأ أكثر
In this study, the performance of the underground mining machinery known as load haul dumper (LHD) has been estimated with …Web
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
Risk Assessment. In November of 2010, a miner was injured by a roof bolting machine (roof bolter) in an Alabama underground coal mine. The roof bolter in question had undergone a complete rebuild intended to return the machine to the original equipment manufacturer's (OEM's) specifications. Warren was hired to analyze both the design of …Web
قرأ أكثر
The big data and cloud computing technologies should be applied to realize the construction of coal mine IoT system. As shown in Fig. 2, there are many monitoring systems in underground coal mines, such as equipment monitoring system, pump house monitoring system and environment monitoring system of coal mine. These systems …Web
قرأ أكثر
from a bottom undercut and advancing. tailings, or other suitable materials). Education/Images/imag. (diamond) mining. tween the top of the haulage level and the bottom of the undercut. drawbells ...Web
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
Heat stress is a major concern for the health, safety and productivity of miners working in hot and humid underground mines. At greater depth, heat inside underground mines increases due to geothermal gradient, heat released from high-capacity machinery, exposed rock surface, auto-compression of air, human metabolism, …Web
قرأ أكثر
This study investigated the environmental impact of underground coal resources under different mining methods and identified the production method with the …Web
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر
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
قرأ أكثر