洗煤厂污水净化

• 作 者: 金治敏
• 出 处: 选煤技术
• 发表日期: 1975年02期
• 关键词: 尾煤 煤泥 污水净化 澄清水 浮选尾煤 浮选方法 沉淀池 精煤 选煤厂 原煤

选煤厂处理每吨原煤须用几立方米的水,同时就有一些小于0.5毫米的煤泥进入水中。有时这些煤泥不经分选就加以回收,但通常是用浮选方法来回收精煤,选除泥质物。浮选尾煤先排放到几公顷的尾煤沉淀池中,然后污水再流入河道,但是更加普遍的是为了节约补充清水,即尾煤经过一些沉淀设备浓缩之后,澄清水部分地加以循环使用,浓缩后的尾煤继续引到

The coal preparation plant uses several cubic meters of water per tonne of raw coal and slimes of less than 0.5 mm enter the water at the same time. Sometimes, these slimes are recovered without sorting, but the flotation method is usually used to recover clean coal, remove the mud material. Flotation tailings first discharged to a few hectares of tailings sedimentation tank, and then the sewage flow into the river, but more generally in order to save water to supplement, that is, after some tailings coal enrichment equipment, the clarified water is partially recycled, Concentrated tailings continue to lead