哈拉沟选煤厂重介浅槽分选机入料下限调整的应用研究
Coal Engineering(2018)
Abstract
哈拉沟选煤厂平均原煤小时量3000t/h.基本流程为13mm以上块煤经三套浅槽分选,13mm以下末煤进入到末煤系统利用重介质旋流器分选或直接上仓.考虑到块煤系统吨煤成本比末煤低8.12元/t.将块煤入洗下限由13mm调整至6mm,块煤入洗量增加302.62t/h,精煤产率85.51%,提高2.17%;精煤灰分4.61%,降低0.23%;数量效率94.62%,提高4.28%,每年可节省成本约四百万元.
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