摘要
论文通过对综放工作面含夹矸结构复杂段顶煤运移、顶煤放出特点和放煤工艺的研究,认为在结构复杂条件下的顶煤的冒放性不仅与放煤参数、顶煤及直接顶的垮落特征有关,而且还受夹矸层岩性及厚度的影响,并提出选择两刀一放单轮间隔放煤方式对提高煤炭回收率、降低原煤含矸率有利。
With the research on the coal transportation, top coal caving features and top coal caving technology for the complicated section of the parting structure in the fully mechanized top coal caving mining face, the paper hold that top coal caving under the complicated structure conditions does not have a relation with the coal caving parameters, top coal and direct roof falling features, but the coal caving was influenced by the rock properties and thickness of the partings. The paper proposed that the top coal caving method with two passing cutting and one caving would improve the coal recovery rate and reduce the ash content of the raw coal.
出处
《煤炭工程》
北大核心
2005年第8期73-75,共3页
Coal Engineering
关键词
综放开采
夹矸
结构复杂
fully mechanized top coal caving mining
parting
complicated structure
