论文部分内容阅读
现在全国煤矿年产原煤6.4亿吨,一年用电120亿度,每年排出煤矸石1亿多吨,其中可供燃烧的低热值矸石约6,000万吨。此外,全国煤矿积存的煤矸石还有10亿吨,占地5万亩。设想在5—7年内投资60亿元,分批建成500万千瓦用沸腾炉烧煤矸石发电的电站,年可利用矸石6,000万吨,既治理了环境污染,又为城市腾出250亿度电和1,500万吨原煤,技术上是可行的,经济效益是好的。
The national coal mine now produces 640 million tons of raw coal annually, uses 12 billion kWh of electricity a year, and discharges more than 100 million tons of coal gangue each year, of which about 60 million tons of low calorific value gangue can be burned. In addition, there are 1 billion tons of coal gangue accumulated in coal mines in the country, covering an area of 50,000 mu. Imagine investing 6 billion yuan in 5-7 years to build 5 million kilowatts of power plants with boiling furnaces to burn coal gangue in batches, and use 60 million tons of meteorite each year to control environmental pollution and free up 25 billion kWh of electricity for cities. The 15 million tons of raw coal is technically feasible and the economic benefits are good.