一、煤矸石资源情况煤矸石是煤炭生产中的一种排出物,它包括洗煤厂排出的洗矸,煤矿生产中的手选矸,煤巷及岩巷掘进中排出的岩石。煤矸石的热值一般为800～1500千卡左右(见表1)。发热量1500～2500卡/克的煤矸石是沸腾炉发电的较理想燃料。另一可利用的成份是硫,含量从不足1%到19.5%,多数煤矿的矸石硫含量在1%以下,目前,我国高硫矸石(72%)排出量每年可达2000万吨以上,大部分硫含量在7-13%之间,以大小不等的黄铁矿晶体和结核等形态,嵌布于矸石之中,易于回收。各类粘土岩是我国煤矸石的主要组成部分,从化验和生产实践情况看,煤矸石中的三氧化二铝 I. Gangue Resources Gangue is an effluent in coal production. It includes the gangue discharged from the coal washing plant, the hand-picked gangue in the coal mine, the coal lanes and the rock excavated in the rock drift. The heat value of coal gangue is generally about 800 ~ 1500 kcal (see Table 1). Coal gangue with 1500-2500 calories per gram is the ideal fuel for power generation in boiling furnace. Another available component is sulfur, which ranges from less than 1% to 19.5%. Most coal mines have a sulfur content below 1%. At present, the discharge of high-sulfur waste rock (72%) in our country can reach more than 20 million tons per year Part of the sulfur content of 7-13%, with varying sizes of pyrite crystals and tuberculosis and other forms, embedded in the gangue, easy to recycle. Various types of clay rock is the main component of China’s coal gangue, from the laboratory and production practices, coal gangue in the aluminum oxide