淮南矿区瓦斯抽采方向

B11,C13煤在淮南矿区属“高突”煤层。为降低矿井瓦斯威胁,多年来重点对这两层煤进行抽采;但因该两层煤透气性差,属极难抽煤层,故抽采率很低。为提高抽采率,减轻矿井通风负担,通过实验室的试验数据以及对其它煤层的实际抽采数据比较,认为不具备突出危险的B7,B8煤层可作为矿井抽采首选煤层。文章对矿区的抽采方向提出了几点新的认识。

Adjustment of Gas Extraction in Huainan Mining District

In order to remove the threat of gas to mines,the gas in B_(11) seam and C_(13) seam in Huainan mining district has being extracted mainly for many years,because the two seams are "high outburst" ones.But extracting gas from the two seams is very difficult,the rate of extraction is low because of the two seam's low permeability.In order to increase the rate of the gas extraction,decrease the pressure of the mine ventilation,based on the test data from the laboratory and the comparison with other seam's real extraction data,this paper holds that extracting gas from B_7 seam and B_8 seam without dangerous burst should be put in the first place,and also introduces new thoughts on extracting adjustment in mining district.