Study On The Key Technology Of Expansion In The Coal Mine Of Hongxing

With the development of Chinese economic rapidly, the demand to coal resource becomes increasing. Xinjiang as a province has rich coal resources, it occupies an important position in the development process of the coal industry. Because of the limit of geological conditions and sinotrans conditions. Coal mines in Xinjiang have some unfavorable factors which have brought a lot of difficulties to the further development of the mine, small-scale generally, aging equipment, backward technology, inadequate facilities, poor security situation and so on. Therefore, the technological transformation to small mines has very important practical significance.Based on the analysis of topographic conditions, geological conditions, coal seam conditions, hydrogeological conditions, mining conditions and the external current situation in Hongxing coal mine, it proposed an implementation that production capacity increase from 90,000t/a to 900,000t/a in the paper. Comparison with the program and mathematical analysis, give a research in reconstruction and extension of the mine development system, coal mining technology and equipment selection. In order to improve mine productivity and security, selectting the main counter-shaft develop program; mechanized longwall caving mining method, using advance deep blasting technology to weaken the top coal ; and selection analysis to the main shaft hoisting equipment is determined by the capacity of lifting equipment for mine. On the condition of safety production, minimize the mine infrastructure investment, improve the economic benefits of mining, provided a sufficient precondition for the feasibility study on engineering practice.Through this research, it will provide a technical support to solve key issues of technological transformation in Hongxing mine, promote new technologies in the Star Mine, while reduce labor intensity and improve the operating environment, at the base of the realization of people-centered governance mine concept, but also provides a useful reference for transformation of the similar mine.