我国排矸量逐年增加,阳泉矿务局累计积存量已达4397万t,占地约90万m~2。目前共有大小矸石山19座,有8座已自燃完,其中一部分未燃矸石可作为烧结砖原料。为了保护环境消除公害,还需对这些固体废渣寻找利用途径。自燃煤矸石可代替碎石和砂子,用于城市建设、矿山建设、公路工程、铁路工程、民用建筑及其他基本建设。 The amount of waste gas discharged in China has increased year by year. The accumulated stock of the Yangquan Mining Bureau has reached 43.97 million tons, and it covers an area of ​​about 900,000 m2. At present, there are 19 large and small rock mountains, 8 of which have been self-ignited, and some of them are unburned gangues that can be used as raw materials for sintered bricks. In order to protect the environment and eliminate public hazards, it is necessary to find ways to use these solid wastes. Self-burning coal gangue can replace gravel and sand for urban construction, mine construction, highway engineering, railway engineering, civil construction and other basic construction.