用煤矸石生产田力宝肥料的新工艺设备徐州华东机械厂季益义张裕金刘传令煤炭是我国的主要能源，我国煤炭的年开采量达１４亿ｔ，伴随着煤炭的开采，大量的煤矸石也被采掘出来，运到地面。煤矸石的大量存放，一方面占用大量耕地，另一方面又污染环境，有关方面都在想方设法... New technology and equipment for producing Tianlibao fertilizer with coal gangue Xuzhou Huadong Machinery Factory Ji Yiyi Zhang Yujin Liu Chuanling Coal is the main energy source in China. The annual production of coal in China reaches 1.4 billion tons. With the exploitation of coal, a large amount of coal gangue is also used Excavated, shipped to the ground. A large number of gangue storage, on the one hand take up a lot of arable land, on the other hand they pollute the environment, the parties are trying to find ways ...