Optimizing Shearer Web Width in Underground Mining of Gently Dipping Methane-Bearing Coal Seams
| Autor: | A. A. Ordin, A. M. Timoshenko, D. V. Botvenko |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Bearing (mechanical)
business.industry 0211 other engineering and technologies Underground mining (hard rock) Coal mining Geology 02 engineering and technology Geotechnical Engineering and Engineering Geology Methane law.invention chemistry.chemical_compound chemistry Mining engineering law Coal basin Coal business Arctic methane release 021101 geological & geomatics engineering 021102 mining & metallurgy |
| Zdroj: | Journal of Mining Science. 55:938-945 |
| ISSN: | 1573-8736 1062-7391 |
| DOI: | 10.1134/s1062739119066320 |
| Popis: | Specifications of domestic and foreign shearers are given. The problem is formulated for optimizing web width of a shearer by the maximum capacity criterion with regard to geological and technology factors. The analytical solution is obtained for the problem using the approximating linear functions of the sloughing factor and the web width. The influences of the optimal web width of shearer are analyzed, and the related recommendations are made. The extremal curve of methane release from broken coal is shown, and the allowable capacity of face by the gas criterion is tested in longwall 5214-1 in the Yalevsky Mine of the Kuznetsk Coal Basin. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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