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我矿采用尾砂充填采矿法开采,大量的尾砂要输送到井下采场,输送管线有1000多米,钢材消耗量很大。由于铜管磨损非常厉害,经常产生漏砂、跑水现象,严重影响生产。1978年12月在+10米中段(约650米)安装了常州市增强塑料厂生产的聚氯乙烯塑料管(Dg95×10)以来,输送了约500米~3的充填料,管子仍然基本完好,管内壁磨损不超过1.5毫米。我们认为塑料管有如下优点:
I mine mining tailings filling mining method, a large number of tailings to be transported to the underground stope, the transfer pipeline has more than 1,000 meters, a great consumption of steel. As copper wear is very powerful, often produce sand, running water, seriously affecting the production. Since the installation of PVC pipe (Dg95 × 10) in Changzhou Zengqiang Plastic Factory in December, mid-December, of +10 meters (about 650 meters), the packing material of about 500m ~ 3 has been transported and the pipes are still basically intact , Tube wall wear does not exceed 1.5 mm. We think the plastic pipe has the following advantages: