鸡西矿务局每年洗选出矸石195万吨左右,这些矸石过去作为废物丢弃,并因此产生一些问题,首先占了大量耕地或育林面积;第二矸石自燃后,不仅浪费能源还放出有害气体,污染环境;第三由于排矸量逐年增加,矸石已成为煤矿生产中的难题,不仅浪费大量人力、物力、资金,而且有时因排矸不及时,还影响洗煤或原 Jixi Mining Bureau washed 195,000 tons of gangue washed each year, these gangue used to be discarded as waste, and thus have some problems, first of all, a large amount of cultivated land or area for raising trees; the second gangue spontaneous combustion, not only waste of energy but also emit harmful gases, Pollution of the environment; Third, the amount of gangue increased year by year, waste rock has become a coal mine production problems, not only a lot of waste of manpower, material and financial resources, and sometimes because of the gangue discharge is not timely, but also affect the washing or the original