脱泥浮选工艺的实践与认识

Practice and view of de shime floatation technology

以杏花选煤厂为例 ,较深入地分析了矸石易泥化、粘土含量大、水质又很软的选煤厂生产工艺系统所存在的问题 .通过对确定煤泥浮选最佳粒度组成的研究 ,制定出了脱泥浮选生产工艺流程 ,全面地改善了浮选、过滤、澄清及洗煤生产环节的效果 .明确指出 :煤泥浮选应有一个最佳的粒度组成范围 ;浓缩浮选、直接浮选、半直接浮选不适用于细泥含量高的选煤厂 ;脱泥浮选工艺具有普遍推广应用价值 ,适合于各类选煤厂 ;耙式浓缩机是理想的原矿脱泥设备 .

For example Xinghua prep plant, the problems that exist in the plant production technology process are analyzed deeply which is characterized high clay content, reject degradate in water easily and water soft. De slime flotation flowsheet is made out through the study on confirmation of optimum the effect of the flotation, filtering, clarification and coal cleaning links. Pointing out definitely: de slime flotation should has a rang of optimum size consist; thicken flotation, direct flotation and pilot direct flotation dont apply to the plants which are characterized slime consist high. De slime flotation has widespread use value and applies to all kinds of plants. Rake thickener is the idea de slime equipments.