The coal mine safety status is closely related to the coal mine safety supervision system at that time. In order to further explore the effects of the historical background and safety supervision policy on coal mine safety, this section reviewed the improvement process of China's coal mine safety
The results showed that XCoalChat achieved the best response accuracy in professional consulting and maintenance decision analysis; XCoalChat also took the least reasoning time on average, which verify that XCoalChat is an effective large language model in the field of coal mine equipment maintenance. The efficient management and …
1. Introduction. Coal resources play an important role in the energy structure, more than a quarter of the world's primary energy is provided using coal. 1 The coking coals required by metallurgy are still in high demand. With the exhaustion of shallow coal resources, the geological conditions of mining are gradually deteriorating.
The increasing target of coal mining production every year needs to be supported by a reliable performance of the temporary stockpile reclaimer system, in order to ensure a smooth transfer of...
Ventilation is critical in underground coal mining (UCM) for safety and productivity. Challenges include mitigating hazardous gases, preventing coal dust accumulation, and achieving a balance between extraction efficiency and environmental concerns. Optimization techniques address these challenges, aiming for enhanced …
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 Markov model.
Performance of the mining equipment is highly affected by unnoticed minor stoppages and idle equipment, in such cases it becomes significant tomeasure the performance of man and machines by effective tool known as Overall Equipment Effectiveness (OEE) for improving the Performance of the machines and Productivity of the mine. Keywords: …
The primary function of a mine hoist is the transportation of personnel and equipment, serving as a crucial link between underground and surface systems. The proper functioning of key components such as work braking and safety braking is essential for ensuring the safety of both personnel and equipment, thereby playing a critical role …
A comprehensive evaluation method is proposed to analyze dust pollution generated in the production process of mines. The method employs an optimized image-processing and deep learning framework to characterize the gray and fractal features in dust images. The research reveals both linear and logarithmic correlations between the …
The aim of the research is to investigate factors that optimize the Overall Equipment Effectiveness (OEE) of an underground Bord and Pillar coal mine that has limited coal …
A typical measurement for equipment effectiveness is overall equipment effectiveness (OEE). The OEE concept has evolved and developed in the transportation sector, with ... (TOVE) which is an extended version of the OEE as an indicator to measure vehicle effectiveness in a coal mining . transportation . company. This study was able to …
DOI: 10.3390/EN12132505 Corpus ID: 198478933; Analysing the Utilisation Effectiveness of Mining Machines Using Independent Data Acquisition Systems: A Case Study @article{Brodny2019AnalysingTU, title={Analysing the Utilisation Effectiveness of Mining Machines Using Independent Data Acquisition Systems: A Case Study}, …
Mining coal. Coal miners use large machines to remove coal from the earth. Many U.S. coal deposits, called coal beds or seams, are near the earth's surface, but others are deep underground.Modern mining methods allow U.S. coal miners to easily reach most of the nation's coal reserves and to produce about three times more coal in …
Improving the emergency response effectiveness of coal mines in response to water hazard accidents not only plays a vital part in minimizing the resultant losses, but also functions as an important index for evaluating the emergency response capability of coal mines. Therefore, it is of great necessity to test the emergency …
1. Introduction. China is the world's largest coal producing country, with more than 1000 coal mines. According to the 13th Five-Year Plan of the Coal Mine Industry, coal production in China will be 3.9 billion tons by 2020, and this level of production would have to be increased by 957 million tons in 2020 from today's figure to fully satisfy the …
The Xinjing Open-Pit Coal Mine landslide is situated in the southern region of Helan Mountain (Fig. 1a). This region under experienced aulacogen deposition from the middle-late Proterozoic and to early Paleozoic periods, with the reactivation of ancient faults and rift development in the late Paleozoic, and reverse thrusting and folding uplift since …
The OMEE model, is a model developed to assess the effectiveness of mining equipment and to estimate the technical replacement time through the analysis of the four factors: i) …
Surface mining is a mining operation that happens on ground level rather than in a cave.. Statistically, surface mining is more common and efficient than underground mining operations, though the two are vastly different processes. Surface mining operations uncover roughly 97% of all mined materials, primarily due to the …
Coal companies have an overburden stripping production target of 95,000 bcm in January 2022, while the realization of production with the Sumitomo SH 350 LHD excavator and Zaxis 350 H excavator is only 77,000 bcm or 82% of the production target. The purpose of this study was to obtain an analysis of the productivity of the Sumitomo SH …
For evaluating equipment effectiveness (OEE), shovel data have been collected from one of the biggest coal mine companies of North India. Data of total working hours (WH), maintenance hours (MH), propel hours (PH), idle hours (IH), etc., were collected from the mentioned mine during (2017–18). Totally, nine shifts are operable …
The Best Practice Guidance on Effective Methane Drainage and Use in Coal Mines fills a critical void. Recommended principles and standards on coal mine methane (CMM) capture and use are set out in a clear and succinct presentation to provide decision-makers with a solid base of understanding from which to direct policy and …
Finally, this study compared the coal mine safety status between the United States and China. Results show that there is still a gap between the two countries in coal mine safety levels. Coal mine geological conditions, coal mining technology, safety training, and coal mine safety supervision forces are the influencing factors of coal …
Based on geological and mining characteristics, coal mine roadways under complex conditions were divided into five types, for each type the deformation and damage characteristics of rocks surrounding roadways were analyzed. The recent developments of roadway support technologies were introduced abroad, based on the experiences of …
Overall Equipment Effectiveness is a crucial Key Performance Indicator in the manufacturing sector, offering insights into the efficiency and effectiveness of machinery and production lines. This metric is made up of three core components: Availability, Performance, and Quality, each providing a unique lens to assess equipment's …
The potential utilization of activated carbon from coal to process the acid mine drainage is still developing. This research aims to see the effect of activated carbon to the acid mine drainage from coal mining in a laboratory scale using a weight basis and the contact time between activated carbon and acid mine drainage.
As a relatively new measure being used for Equipment performance is the Overall Equipment Effectiveness. This gives an overall measure of how effectively an asset is …
By focusing on maximizing equipment effectiveness, Unilever improved production efficiency, reduced downtime, and enhanced overall productivity in its diverse range of products, from food to personal care items. Siemens: Siemens, a leader in industrial automation and digitalization, has integrated OEE extensively in its …
equipment effectiveness (OEE) measurement can be calculated for an underground coal mining bord and pillar batch process. The calculation method, the typical losses (which …
Results show that there is still a gap between the two countries in coal mine safety levels. Coal mine geological conditions, coal mining technology, safety training, and coal mine safety supervision forces are the influencing factors of coal mine safety. ... technical equipment, and miner education," Resources Policy, Elsevier, vol. 77(C ...
Overall equipment effectiveness (OEE) is a key performance indicator used to measure equipment productivity. The purpose of this study is to review and analyze the evolution of OEE, present modifications made …
Coal companies have an overburden stripping production target of 95,000 bcm in January 2022, while the realization of production with the Sumitomo SH 350 …
With the rapid development of coal mine intelligent technology, the complexity of coal mine equipment has been continuously improved and the …
As for the safety signs on the ground of coal mines, the maximum number of the first fixation count is 0.850 and the minimum time of first fixation is 0.4015 s in the position of No. 5 and for the safety signs under the ground of coal mines, the maximum number of the first fixation count is 0.925 and the minimum time of first fixation is 0.508 ...
Underground coal mining is a challenging and hazardous occupation that requires constant monitoring of environmental parameters to ensure the safety of miners. A handful of research has been carried out in developing wireless monitoring devices to monitor underground mine workings using Wi-Fi and ZigBee, which has limitations such …
After years of development, paste backfill technology has become an important part of China's green safety mine construction and coal green mining technology system in the new era. In this paper, the research status of paste backfill technology in China's coal mines is expounded from the aspects of paste backfill materials, strata …
process of mine exploitation. Previous studies dealing with this issue promoted the following research areas: injuries in the underground coal mine,1,2 main causes of mining equipment accidents,3,4 research of underground mine working environment parameters and ventilation,5,6 location of control devices in underground mines,7 useful
Chinese safety regulations of coal mine stipulate that the pre-mining coal seam must be pre-drained to decrease the gas pressure and content below the safety margin of 0.74 MPa and 8 m 3 /t, respectively (State Administration of Coal Mine Safety of China, 2011).Otherwise it may easily cause coal-gas outburst, gas exceeding the limit in …
Coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. …
Choosing a mine dewatering system is often a complex process with multiple solutions on the market, and unique site aspects to consider. In the vast mining landscape, water management plays a pivotal role in operations, therefore selecting the appropriate dewatering system is a critical decision. Navigating the myriad of dewatering options …