Modelling the Performance Indicators of Surface Miners in Coal Mines using Coal Cuttability Factor
Modelling the Performance Indicators of Surface Miners in Coal Mines using Coal Cuttability Factor |
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| © 2024 by IJETT Journal | ||
| Volume-72 Issue-4 |
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| Year of Publication : 2024 | ||
| Author : Om Prakash Singh, P Y Dhekne, Manoj Pradhan, N Sukesh |
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| DOI : 10.14445/22315381/IJETT-V72I4P125 | ||
How to Cite?
Om Prakash Singh, P Y Dhekne, Manoj Pradhan, N Sukesh, "Modelling the Performance Indicators of Surface Miners in Coal Mines using Coal Cuttability Factor," International Journal of Engineering Trends and Technology, vol. 72, no. 4, pp. 238-248, 2024. Crossref, https://doi.org/10.14445/22315381/IJETT-V72I4P125
Abstract
Extraction of rock can be achieved either through drilling and blasting or through mechanical means. The economics of mechanical rock excavation depends on achieved rates of production and the operating cost. Pick and diesel consumption accounts for around 70% of the operating cost of surface miners. Thus, production rate, specific pick, and diesel consumption are considered the key performance indicators of surface miners. The cutting performance of a surface miner varies with respect to rock characteristics. So, assessment of these performance indicators beforehand would help the coal companies in better selection of surface miners for a given rock and production requirement. The study was performed at 10 mines of Mahanadi Coalfields Limited in Odisha, where about 75 surface miners of different make and models are in operation. A coal cuttability factor for coal has been developed using a combination of intact rock, rock mass and machine parameters like Uniaxial Compressive Strength, Laboratory and Insitu P-wave velocity, Power to Weight ratio of the machine. Empirical relations for estimating the key performance indicators using the coal cuttability factor were developed. The correlation coefficient for estimating normalized production rate (m3 /hr/m), pick consumption and diesel consumption for cutting 1000m3 of coal and dirt bands was found to be 0.73, 0.82 and 0.77, respectively. The models have been validated with the field data where the % error was found to be within 20%.
Keywords
Surface miner, Diesel, Performance, Coal, Modelling.
References
[1] Puzzolana Surface Miner, Puzzolana, 2022. [Online]. Available: https://puzzolana.com/products/mining/surface-miner/
[2] L&T Surface Miners, L&T Construction & Mining Machinery, 2022. [Online]. Available: https://lntcmb.com/surface-miner/
[3] Monthly Statistical Report, Ministry of Coal, March 2023, Ministry of Coal, pp. 1-115, 2023. [Online]. Available: https://coal.gov.in/sites/default/files/2023-05/srn-march-2023_0.pdf
[4] Akshat Mishra, and Mohini Ganguly, Sustainable Mining in India - Overview of Legal and Regulatory Framework, Technology and Best Process Practices, India MineTech 2018 - A Seminar on Mining Technology, Indian Chamber of Commerce and Cuts International, pp. 1-46, 2018. [Online]. Available: https://cuts-citee.org/pdf/Sustainable_Mining_in_India-Overview_of_legal_and_regulatory_framework_technologies_and_best_process_practices.pdf
[5] Prakash Amar, Murthy Vemavarapu Mallika Sita Ramachandra, and Singh Kalendra Bahadur, “Rock Excavation Using Surface Miners: An Overview of Some Design and Operational Aspects,” International Journal of Mining Science and Technology, vol. 23, no. 1, pp. 33-40, 2013.
[CrossRef] [Google Scholar] [Publisher Link]
[6] S. Kramadibrata et al., “Rock Excavation by Continuous Surface Miner in Limestone Quarry,” Geosystem Engineering, vol. 18, no. 3, pp. 127-139, 2015.
[CrossRef] [Google Scholar] [Publisher Link]
[7] Wirtgen Surface Mining Manual - Applications and Planning Guide, Wirtgen Group, 2022. [Online]. Available: https://www.wirtgen-group.com/en-de/customer-support/training/hands-on-manuals/surface-mining/
[8] A.K. Ghose, “New Technology for Surface Mining in the 21st Century-Emerging Role for Surface Miners,” Journal of Mines, Metals and Fuels, vol. 56, no. 3, pp. 41-43, 2008.
[Google Scholar] [Publisher Link]
[9] A. Prakash et al., “Development of a Handy Methodology for the Selection of Surface Miner in Varied Rock Mass Conditions for Mass Production of Coal and Limestone,” Journal of Mines, Metals and Fuels, vol. 64, no. 5, pp. 112-117, 2016.
[Google Scholar] [Publisher Link]
[10] Alexandre Ditlef et al., “A Feasibility Study of Surface Miner,” Research, Society and Development, vol. 11, no. 13, pp. 1-15, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[11] N. Bilgin et al., “Dominant Rock Properties Affecting the Performance of Conical Picks and the Comparison of Some Experimental and Theoretical Results,” International Journal of Rock Mechanics and Mining Sciences, vol. 43, no. 1, pp. 139-156, 2006.
[CrossRef] [Google Scholar] [Publisher Link]
[12] Saurabh Dewangan, and Somnath Chattopadhyaya, “Characterization of Wear Mechanisms in Distorted Conical Picks after Coal Cutting,” Rock Mechanics and Rock Engineering, vol. 49, pp. 225-242, 2016.
[CrossRef] [Google Scholar] [Publisher Link]
[13] Yong Sun, Xing Sheng Li, and Wen Shao, “Influence of Cutting Parameters and Interactions on the Depth of Cut in Continuous Mining Operation,” Advanced Materials Research, vol. 538-541, pp. 1422-1428, 2012.
[CrossRef] [Google Scholar] [Publisher Link]
[14] Sathish Kumar Palaniappan, Samir Kumar Pal, and M.P. Dikshit, “A Study on Rock Cutting Forces and Wear Mechanisms of Coated Picks by Lab-Scale Linear Cutting Machine,” Proceedings of the 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019, pp. 467-475, 2019.
[CrossRef] [Google Scholar] [Publisher Link]
[15] A. Prakash, V.M.S.R. Murthy, and K.B. Singh, “Chip Size Characterization for Selecting Optimum Production Parameters of Surface Miner Operating in a Coal Mine,” Current Science Association, vol. 108, no. 3, pp. 422-426, 2015.
[Google Scholar] [Publisher Link]
[16] K. Dey, and P. Sen, “Continuous Surface Miner in Mining Limestone and Coal in India - A Comparative Study,” Journal of Mines, Metals and Fuels, vol. 56, no. 3-4, pp. 51-54, 2008.
[Google Scholar] [Publisher Link]
[17] Nilesh Pratap Singh et al., “Impact of Surface Miner Utilisation on Production Efficiency in Opencast Coal Mines Using Least Squares Method: A Case Study,” Journal of The Institution of Engineers (India): Series D, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[18] Inventory of Coal Resources of India, Coal Inventory, pp. 1-13, 2022. [Online]. Available: https://www.cmpdi.co.in/en/coal-inventory
[19] Kaushik Dey, and A.K. Ghose, “Review of Cuttability Indices and A New Rockmass Classification Approach for Selection of Surface Miners,” Rock Mechanics and Rock Engineering, vol. 44, pp. 601-611, 2011.
[CrossRef] [Google Scholar] [Publisher Link]
[20] V. Raghavan, and Ch.S.N. Murthy, “Prediction of Cuttability from Rock Cutting Resistance,” Journal of the Southern African Institute of Mining and Metallurgy, vol. 118, no. 3, pp. 321-329, 2018.
[CrossRef] [Google Scholar] [Publisher Link]
[21] Surface Miners and Cross Application Miners, Extraction of Primary Resources and Execution of Large-Scale Infrastructure Projects without Drilling and Blasting, Wirtgen Group, 2022. [Online]. Available: https://www.wirtgen-group.com/ocs/en-in/wirtgen/surface-miners-and-cross-application-miners-74-c/
[22] Prakash Amar, Murthy Vemavarapu Mallika Sita Ramachandra, and Singh Kalendra Bahadur, “Performance Simulation of Surface Miners with Varied Machine Parameters and Rock Conditions: Some Investigations,” Journal of Geology and Mining Research, vol. 5, no. 1, pp. 12-22, 2013.
[CrossRef] [Google Scholar] [Publisher Link]
[23] Nilesh P. Singh et al., “Impact of Coal Quality on Longevity of Picks of Surface Miner- A Case Study,” International Conference on Deep Excavation, Energy Resources and Production, pp. 1-28, 2017.
[Google Scholar]
[24] Nilesh Pratap Singh et al., “An Investigation into Statistical Correlations between Coal Production and Key Productivity Indicators of Surface Miners in Indian Opencast Mines,” Mining, Metallurgy & Exploration, vol. 40, pp. 389-402, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[25] Chiara Origliasso, Marilena Cardu, and Vladislav Kecojevic, “Surface Miners: Evaluation of the Production Rate and Cutting Performance based on Rock Properties and Specific Energy,” Rock Mechanics and Rock Engineering, vol. 47, pp. 757-770, 2014.
[CrossRef] [Google Scholar] [Publisher Link]
[26] Dhananjai Verma et al., “Assessment of Geo-Mechanical Properties of Some Gondwana Coal Using P-Wave Velocity,” International Research Journal of Geology and Mining, vol. 2, no. 9, pp. 261-274, 2012.
[Google Scholar] [Publisher Link]
[27] Amar Prakash, Kalendra B. Singh, and Vemavarapu M.S.R. Murthy, Power Rating of Surface Miners in Relation to Rock Mass Conditions: Some Field Studies in Indian Mines, NexGen Technologies for Mining and Fuel Industries, pp. 49-60, 2017.
[Google Scholar] [Publisher Link]
[28] Amar Prakash, Vemavarapu Mallika Sita Ramachandra Murthy, and Kalendra Bahadur Singh, “A New Rock Cuttability Index for Predicting Key Performance Indicators of Surface Miners,” International Journal of Rock Mechanics and Mining Sciences, vol. 77, pp. 339-347, 2015.
[CrossRef] [Google Scholar] [Publisher Link]
[29] Kaushik Dey, and Jayanta Bhattacharya, “Operation of Surface Miner: Retrospect of a Decade Journey in India,” Procedia Engineering, vol. 46, pp. 97-104, 2012.
[CrossRef] [Google Scholar] [Publisher Link]