论文部分内容阅读
西德1978年产煤2.07亿吨,其中烟煤为8350万吨。矿井平均日产8912吨商品煤。1980年矿井计划日产1～2万吨商品煤。为此,工作面单产将达到3500吨/日。 根据1978年资料,西德矿井采面指标如下: 工作面平均日产商品煤,吨 1397 工作面平均长度,米 220 工作面平均日推进度,米 2.80 开采煤层平均厚度,米 1.78 液压支架工作面产煤比重,％ 90.3 回采工班效率,吨商品煤 23.301 关于工作面所达到的单产,还可根据下列资料推断。1976年,西德十个最好的工作面产量为2450～4077吨。西德在烟煤矿井进行的试验中,由于劳动组织合理,工作面单产曾达到8000吨/日商品煤以上。有一系列工作面,平均日产曾达到6000-7000吨商品煤。
West Germany produced 207 million tons of coal in 1978, of which 83.5 million tons of bituminous coal. Mine average daily output of 8912 tons of commercial coal. 1980 mine plan Nissan 1 to 2 tons of commercial coal. To this end, face production will reach 3,500 tons / day. According to 1978 data, the West German mine face index are as follows: Face average Nissan commodity coal, 1397 Average working face length, m 220 Average daily propulsion level, m 2.80 Average coal seam thickness, m 1.78 Hydraulic support face production Percentage of coal,% 90.3 Efficiency of mining work shift, tons of commercial coal 23.301 The yield per unit area reached on the face can also be inferred from the following data. In 1976, the best of West Germany’s ten working face production was 2450 ~ 4077 tons. West Germany in the trial of bituminous coal mines, due to the rational organization of work, face production has reached 8,000 tons / day above the commercial coal. There are a series of facets and the average Nissan has reached 6,000-7,000 tons of commercial coal.