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 ...
Below Industrial Flow Solutions discuss the most cost-effective wastewater pumping equipment for coal-mining applications. Coal-Mining Pump Issues That Increase Your Costs. There are three coal-mining issues that plague slurry pumps and shorten their lifespans. Abrasive Solids. Coal itself is a highly abrasive material.
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 …
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 …
Korski et al. [3] evaluate the effectiveness and usefulness of mining machinery employed in the Polish hard coal industry through use of an OEE (Overall Equipment Effectiveness) indicator. ...
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 …
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. …
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 primary objective of any mining plan should be the effective integration of all the activities involved in the overall mining process that will meet predetermined targets with regard to health, safety, environmental, productivity and unit cost criteria. The South African coal mining industry and its stakeholders acknowledge that effective mine
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 …
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...
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 …
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 …
With the rapid development of coal mine intelligent technology, the complexity of coal mine equipment has been continuously improved and the …
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 …
The traditional coal mine equipment maintenance knowledge management technology can no longer meet the current needs of equipment maintenance knowledge management, and the problems of low utilization rate, poor interoperability, and serious loss of knowledge have gradually emerged. It is urgent to study new knowledge system …
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) …
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 …
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 …
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
equipment effectiveness (OEE) measurement can be calculated for an underground coal mining bord and pillar batch process. The calculation method, the typical losses (which …
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 …
As part of a company-wide review process, poor overall equipment effectiveness (OEE) was identified as a major reason for the mine not achieving its targets. A project to improve the OEE...
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 …
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 …
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 …
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: …
2021) and to assess mining equipment performance (X. Cao et al., 2021), identifying weak areas in the mining process (Siregar et al., 2018) for improving effectiveness of mining equipment (Samatemba et al., 2020). Therefore, it is necessary to select appropriate parameters which must be routinely monitor. Each mining equipment has …
constructed, and maintained passive treatment systems are a highly cost-effective solution for contaminated mine discharges on AML sites. Introduction . Contaminated coal mine drainage can be treated by active and passive techniques. Active treatment typically includes chemicals, mechanical equipment, and labor associated with operations and …
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}, …
The aim of the research is to investigate factors that optimize Overall Equipment Effectiveness (OEE) of an underground Bord and Pillar coal mine that has limited 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 …
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 …
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.