综采工作面采高大于2.5 m时,煤壁片帮现象趋于严重,而且随着采高的增大,传统多级护帮机构都是折叠式,其结构收回时梁头部分厚度太厚,影响采煤机摇臂挑顶且结构复杂,因此设计一种伸缩式护帮机构,有效解决了这两方面的问题.
旨在设计出一种新型的带式输送机顺槽巷道超前支护液压支架,能有效保障矿井综采生产,改善顶板的管理水平,保证带式输送机顺槽巷道设备及工作人员的人身安全,提高支护效率,降低支护成本,进而使平直移架得到保证,并且方便快捷地提高移架速度,为实现高产、高效工作面提供安全有力的保证.
According to Liangbei Coal Mine of coal seam geological condition,make a research of equipment type selection and match thick coal pick face mining which can produce three million tons per year.Practice shows that this fully mechanized coal mining face in thick coal seam in Liangbei mine equipment selection rational,superior performance,overall support performance very well adapt to geological conditions,reaching safety in production,high yield and high efficiency of intensive purposes.
