山西省选煤工艺的研究与思考

通过对山西省选煤厂所采用的主要选煤工艺进行统计,阐述了跳汰选、重介质选、干选、浮选等分选工艺在山西省的应用特点,通过分析得出:选煤工艺中,对于极易选和易选煤的分选,跳汰选还将会是首选工艺;而重介质选煤工艺以其高精度分选的优势将在山西省成为应用主体;干法选煤、动筛跳汰等选煤方法虽然有较大的局限性,但应用在特定条件下也能够发挥效益;对于煤泥分选,在浮选工艺目前仍占主体地位的同时,1～0.25mm粗粒煤泥的分选将受到重视,分级入选成为煤泥分选的主要趋势;最后,分别就未来山西省炼焦煤和动力煤的洗选工艺提出几点建议。 Through making statistics on the major coal cleaning technology applied currently by the coal preparation planls in Shanxi province, Application features such as the jigging, heavy medium elections, flotation, dry separation in Shanxi Province were expatiated. According to analysis found that in coal preparation process, jig would be the preferred technology for the vulnerable and easy election at the election process and heavy medium preparation technology would gradually replace the traditional jig coal preparation process and should become the main technology; Although the methods such as dry coal cleaning and moving screen jig separation of coal have more limitations, the application under specific conditions could also exert effect. Flotation is predominant while 1～0.25mm coarse slime separation was highly recognized. Classification selected became the main trends in slime separation. At last, several suggests were put forward about preparation process of coking coal and power coal in Shanxi province