望儿山金矿全尾砂充填体表面细泥抑制试验研究  

STUDY ON RESTRAINING SURFICIAL MUD ON UNCLASSIFIED TAILING FILLING BODY

作　　者：张长锁[1] 王成 付毅[1] 

机构地区：[1]北京矿冶研究总院,北京100044 [2]莱州金仓矿业有限公司望儿山金矿,山东莱州261441

出　　处：《矿冶》2004年第3期1-5,共5页Mining And Metallurgy

摘　　要：全尾砂充填在充填体表面往往会形成一层具有一定厚度的细泥层,给生产作业带来诸多不便,作者试验在充填料中加入微量自主开发的尾砂专用絮凝剂来解决这个问题。通过室内试验证明,絮凝剂可以有效地抑制细泥层产生,加快细粒级沉降速度,添加0 005%的絮凝剂可以使沉降速度提高1倍,同时缩短沉降过程所用时间到不加絮凝剂时的1/3。在望儿山金矿现场应用,取得了显著的效果,证明这种方法是可行的,而且成本非常低廉。In unclassified tailing backfilling, there is always a mud layer with a certain thickness on the surface of filling body, disturbing productive operations. Author try to use a self-made flocculent for tackle of this problem. The results of experiment show that the flocculent can accelerate the settlement of fine particles, so restraining the mud layer effectively. At flocculent addition of 0.005%, the settling speed of fines can be doubled, and the settling time is less than one third of that without the flocculent. The filling tests in Wangershan Gold Mine prove that this technique is viable and very low in cost.

关 键 词：全尾砂充填 细泥层 絮凝剂 沉降速度 

分 类 号：TD853.34[矿业工程—金属矿开采]