Based on the Internet of Things technology, according to the monitoring and early warning requirements of coal mines, an intelligent safety monitoring system is set up to achieve personal tracking and positioning (Chen et al., 2020) and real-time safety monitoring and maintenance of coal mine equipment. The corresponding coal mine …
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 …
The continuous miner cutter (CMC) sleeve is an integral part of the mining tools, including the boxes and picks. It is designed to allow free rotation of the pick in its bore while cutting the coal.
Opencast mining has the advantages of high resource recovery rate, good safety conditions, high labour efficiency and large production scale. When producing the same capacity of coal, the cost of ...
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, …
Imported machinery operating in Indian coal mines often has high breakdown records and thus the acquisition and maintenance costs are too high to …
Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years. At present, the output of a FMM face has reached 10-million tons with Chinese-made equipment. In this study, the new developments in FMM technology and equipment in Chinese coal mines during past decades are introduced. …
The research results show that the complex network of coal mine safety risks illustrate the characteristics of a small-world network, and the spread of a certain risk is likely to cause coal mine ...
An Abundant Natural Resource. Coal mining had been a major industry in Britain from the 16th century, ever since forests had been depleted and wood for fuel became scarce. There were four main coalfields: South Wales, southern Scotland, Lancashire, and Northumberland.All four produced high-quality coal, and all were …
The efficient management and utilization of coal mine equipment maintenance knowledge is an indispensable foundation for advancing the establishment of intelligent mines. This knowledge has problems such as scattered, low sharing, and insufficient management, which restricts the development of coal mine intelligence. For …
Increasing the supervision of coal mine electromechanical equipment is an urgent need to ensure the safe production of coal mines. This paper designs and develops a coal mine electromechanical ...
Mine water surge is one of the main safety risks in coal mines. This research offers a novel mine water source identification model (BO-CatBoost) to successfully avoid and control mine sudden water catastrophes by properly identifying the sources of mine water. First, the classification model is trained and built using the Categorical Boosting …
Mining companies, research agencies, manufacturers, suppliers, etc. should work closely to customize the longwall technology to extract coal from deep, thick, thin, inclined, fractured, etc. coal seams economically and safely. ... Imported machinery operating in Indian coal mines often has high breakdown records and thus the …
With the changing time now, continuous miners of different heights are available, which helps for optimum use of technology to mine out varying in situ height of …
Coal Production from opencast mines in India (FY 1998-99 to 2016-17) Source: Coal Directory of India, FY 1998-99 to 2016-17 Output Per Man Shift (OMS) of UG and OC mining methods under CIL.
The application of intelligent equipment and technologies such as robots and unmanned vehicles is an important part of the construction of intelligent mines, and has become China's national coal energy development strategy and the consensus of the coal industry. Environment perception and instant positioning is one of the key technologies …
Devices related to the transportation of coal from the mine to processing facilities to rail loading and finally to the consumer: conveyors, underground and overland; barge; ship; railroad; trucks; Also includes devices related to the processing of coal including: coal sampling and testing laboratories; coal preparation equipment
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 semantic …
To manage the process of human-machine safety collaboration in the context of intelligent construction of coal mines and prevent the occurrence of human-machine interaction accidents. This study explores the variables affecting human-machine safety collaboration in coal mines and analyzes the causal relationships and mechanisms of …
Similar material model test of mining overburden rock Model monitoring and excavation scheme. The 22,122 working face of Cuncaota No.2 Coal Mine of China Shenhua Shendong Coal Group Co., Ltd. is ...
Layers of rock and dirt above and between the coal seams are removed. Coal seams are removed with excess soil and rock placed in an adjacent valley. Large scale earth moving equipment is used to excavate and remove coal from lower layers. The equipment used depends on the method and scale of the surface mining method …
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 top-level architecture of 5G+ intelligent coal mine systems combines intelligent applications such as autonomous intelligent mining, human–machine collaborative rapid tunneling, unmanned ...
A total of 125 coal mine gas explosion accident reports in China from 2010 to 2020 were considered as the original data, and 30 causal factors of gas explosion accidents were extracted from the macro, meso, and micro levels. The Carma algorithm was used to mine the frequent itemsets of the sample data.
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 …
It is unclear exactly when the first continuous mining vehicle was developed. The English Channel Machine built in the 1870s and ran on compressed air could possibly be counted, but most agree that the technology was first used in mining in the early 1900s. In 1912, for example, the Hoadley Knight Machine was developed for …
We use this for mining platinum. Large scale mechanised mining methods we use include: long-wall mining, where a long wall of coal is mined in a single slice, usually by a large machine. sub-level-caving, where levels of the ore are blasted by explosives; and
Several machine learning models were used to predict the risk of a mine based on its employment demographics (i.e., number of underground employees, number of surface employees, and coal …
Explore the essential mining tools and equipment used for surface and underground mineral extraction, from PPE to heavy machinery. PRODUCTS. DRONES & ACCESSORIES. Elios 3; Elios 3 UT Payload; ... Longwall mining is commonly used in coal mines and involves the use of a shearer set on a kilometer long track to grind coal …
Energies 2022, 15, 8068 4 of 15 a & g n e a c s e n n n g 3 p r d Figure 1. Positioning process of coal mine heading equipment based on uniocular vision. 2.2. Image Feature Extraction and Matching ...
This paper proposes an advanced framework for robot technology systems in coal mining, including single robots, robotized equipment, robot crowds, and …
Continuous miner (CM) is employed for room and pillar mining whereas drum shearer machine (longwall shearer) and plough are used in longwall coal mining [6] [7][8][9]. CM is a multifunctional ...
Mining activities also involved heavy-duty work and the use of machinery or transportation, such as lorries, trucks and excavators. ... few researchers have reported on the latest technology that can be used to prevent coal mine accidents, as shown in ... The SLR examined research trends in mining accidents issues between 2015 and 2019 …
This article examines how five innovative technologies can transform abandoned or in-use coal mines into sustainable energy centres. From solar thermal to …
As the core equipment in the process of coal mining, the intelligence level of shearers directly affects the safety production and mining efficiency of coal mines. Coal and rock recognition technology is the core technology used to realize the intelligentization of shearers, which is an urgent technical problem to be solved in the field of coal ...