school of Energy.Xi'an University of Science and Technology MOE Key Lab of Mining and Disaster Prevention in Western Mines

基于大倾角中厚煤层走向长壁综采、大倾角厚煤层走向长壁综放和大倾角4.5 m大采高综采工作面开采现状,分析了采煤机和刮板输送机在大倾角煤层综采实践中的应用效果,论述了大倾角采煤机及刮板输送机针对大倾角特殊条件所进行的持续改进情况。大倾角采煤机的持续改进主要集中在保证其制动可靠、牵引力足、润滑良好、装煤率高以及操控安全;大倾角刮板输送机的持续改进主要包括确保其结构强度高、防滑可靠和安全防护优良3个方面。特别指出大倾角采煤机及刮板输送机的持续改进应突破传统的近水平或缓倾斜条件下的设计理念与方法,改进的关键应立足大倾角特殊条件提升采煤机和刮板输送机的适应性与可靠性。最后指出了大倾角采煤机和刮板输送机深化改进面临的主要问题及解决方案。

Based on the typical engineering cases of the fully-mechanized longwall mining along the strike of the steeply dipping seam medium thick seam,ful -mechanized longwall top coal caving mining along the stike of the steeply dipping thick seam and the ful -mechanized4.5 m high cutting coal mining in the steeply dipping seam,the paper analyzed the application effect of the coal shearer and scrapecoal mining practices in the steeply dipping seam and stated the sustained improvement of the shearer and the scraper conveyor according to the stepy dipping special condition.The sustained improvement ofshearer applied in the steeply dipping seam nainly concentrated to ensure the braking reliabilty suficient haulage excelent lubrication,high coal loading rate and saiety operation.The sustained improvement of the scraper conveyor applied to thesteeply dipping seam mainly included to ensure the high structure strength,reliable sliding prevention and safety protection.The sustained improvementof shearer and craper conveyor applied to the steeply dipping seam should break through the design conception and method under the conventional subhorizontal orgently inclined condtions and the key of improvement should be based to improve the suitabiliy and reliability of shearer and scraper conweyor under the steeply dipping special condition.F inally,the paper pointed out the major problems and solutior

国家自然科学基金重大研究计划资助项目(90210012)；国家自然科学基金资助项目(51074120；51204132)；