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长期以来,占我国一次性能源70％以上的煤炭,一直制约着国民经济的发展。在当前国家资金紧缺的情况下,怎样才能做到投入少、产出多,从而加快煤炭工业的发展呢?地处能源紧缺地区的新汶矿务局,以自己十年来重视老矿挖潜、技术改造的实践,回答了这个问题。一、挖潜改造产生了巨大的经济效益和社会效益新汶矿务局成立于1956年,现有11对生产矿井,7.8万名职工,近10万名家属。矿井大部分建于“一五”、“二五”期间。由于受当时技术条件的限制,除协庄矿为年设计能力120万吨的大型矿井外,其余各矿井都是设计能力15～45万吨的中小型矿井,全局年设计能力为636万吨。近几年,有4对矿井相继衰老报废,使矿区年设计能力降为516万吨。随着矿区开发强度的增大,矿井延深频繁,生产系统均处于不适应状态。加上井田走向短、煤层薄、倾角大、地质条件复杂、设备工艺落后等因素,造成矿井抗灾能力差,生产效率低,束
For a long time, accounting for more than 70% of China’s one-time energy of coal, has been restricting the development of the national economy. In the current shortage of funds in the country, how can we do less investment and more output to speed up the development of the coal industry? Xinwen Mining Bureau is located in areas of energy shortage, taking their own decade to tap the potential of old mines, technology The practice of reform answers this question. First, tap the potential transformation has had tremendous economic and social benefits Xinwen Mining Bureau was established in 1956, the existing 11 pairs of production mines, 78,000 workers, nearly 100,000 family members. Most of the mines were built in the “first five”, “second five” period. Due to the technical conditions at that time, except for Xiezhuang Mine, which is a large-scale mine with an annual design capacity of 1.2 million tons, all other mines are small and medium-sized mines with a design capacity of 150,000 to 450,000 tons. The overall annual design capacity is 6,360,000 tons. In recent years, four pairs of mines have been aging scrapped, so that the annual design capacity of the mining area dropped to 5.16 million tons. With the intensity of mining development increased, the mine deep and frequent, the production system are not suited to the state. In addition, shortening of mine field, thin coal seam, large dip angle, complex geological conditions and backward equipment technology lead to poor mine disaster resistance, low production efficiency,