论文部分内容阅读
煤炭是我国主要能源,占能源比重70％以上,并逐年有增长的趋势(见表1)。目前,我国煤炭工业是增产和节能并重的方针。“国务院关于发展煤炭洗选加工合理利用能源的指令(节能指令第五号)指出:“我国年产原煤六亿多吨,大部分未经洗选加工就直接供应用户使用,矸石多,灰分高、品种、规格不对路,热效率低,造成很大浪费。为了节约能源,减少矸石运输,防止环境污染,并提高工业产品质量,必须积极发展煤炭洗选加工,合理使用煤炭”。为
Coal is China’s major energy source, accounting for more than 70% of energy, and has a tendency to increase year by year (Table 1). At present, China’s coal industry is the policy of equal production and energy saving. “The State Council’s directive on the development of rational coal washing and processing energy use (Energy Saving Directive No. 5) states:” China’s annual output of more than 600 million tons of raw coal, most of the direct supply without washing processing users, gangue, ash high Variety, specifications wrong way, low thermal efficiency, resulting in a great waste. In order to save energy, reduce waste rock transportation, prevent environmental pollution and improve the quality of industrial products, coal washing and processing must be actively developed to make rational use of coal. "