选煤厂矸石外排清洁生产技术研究与应用

Research and application of coal gangue disposal technologies in coal preparation plant

矸石是采煤和选煤过程中排放的固体废物,济三煤矿产生的矸石由汽车向矿外排放,给矿井的安全生产、清洁生产带来较大危害,另外由于汽柴油价格上涨,工程汽车维修费用高,汽车排矸提高了矿井的生产成本。为此提出了安装大型齿辊式破碎机,取消大块矸石手选,修建矸石外排输送带,将各排矸点的矸石统一集中向矿外排放的解决方案。新方案实施后,不但可以取消手选,降低职工劳动强度及安全事故率,更可以降低运营成本,实现矿井的清洁生产。

Coal gangue is the solid waste produced during coal mining and preparing. The gangue, generated by Jining NO. 3 coal mine, were transported from coal mine by truck, which harmed the production and polluted the environment. Rising naphtha and diesel oil and high maintenance cost increase the transportation cost. To resolve this problem, install large-scale toothed roll crusher and gangue outward-transporting belt, cancel hand picking gangue process, collect the gangue from each gangue generating site, then uniformly dispose. The new program reduce the labour intensity, accident rate and operating cost, realize cleaner production