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山东里能里彦矿业有限公司16702工作面设计开采煤层为16上煤,该煤层赋存稳定,厚度变化不大,约0.93m,由于煤层中存在黄铁矿结核,结核分布没有规律.形状和大小不规则,无法使用机械化开采,所以采用放炮落煤配合薄煤层支架采煤工艺。1 炮采存在的问题炮采薄煤层并配以液压支架在实际开采过程中也遇到诸多问题,最大的困难是放炮挡煤效果不好,虽然厂家也配备了与液压支架相配套的挡煤板用于挡煤,但由于炮采冲击力较大,易将煤块、煤粉崩落到
Shandong Linengyan Mining Co., Ltd. 16702 face design and mining of coal is 16 on the coal, the coal seam is stable, little change in thickness, about 0.93m, due to the presence of pyrite nodules in the coal seam, there is no regular distribution of tuberculosis. Irregularly sized, unable to use mechanized mining, so the use of shot coal with thin coal seam support coal mining technology. A shot blasting existing problems Blasting mining thin seam and with hydraulic support in the actual mining process also encountered many problems, the biggest difficulty is shot blasting coal effect is not good, although the manufacturers are also equipped with a hydraulic support and supporting the coal Plate used to block the coal, but due to mining mining impact larger, easy to coal, coal fell to