开滦是全国最大的炼焦煤生产基地,现有七座选煤厂,年设计能力1420万吨。1986年,全局生产精煤640多万吨,约占全国洗精煤产量的十分之一,完成洗煤利润17119万元,约占全国洗煤利润的七分之一,创出了历史最好水平。因此,洗选加工是开滦的经济支柱。 Kailuan is the country’s largest coking coal production base, the existing seven coal preparation plant, the design capacity of 14.2 million tons. In 1986, the overall production of more than 640 million tons of clean coal accounted for about one-tenth of the total output of clean coal in the country. The profit of coal washing was 171.19 million yuan, accounting for about one-seventh of the nation’s coal-washing profits, setting the highest level in history . Therefore, the washing process is the economic pillar of Kailuan.