冯来宏,周瑞通
FENG Lai-hong,ZHOU Rui-tong(Baode Coal Preparation Plant

• 1:神华神东煤炭集团洗选中心保德选煤厂

摘要(Abstract)：

保德选煤厂北部区所用筛网沉降式离心机适宜+0.045 mm粗煤泥处理,而目前该厂采用的煤泥水处理方法使部分-0.045 mm细煤泥成为筛网沉降式离心机的入料,部分细颗粒在系统内循环,造成细泥聚集,恶化了煤泥水性质。针对以上问题,选煤厂采用水力旋流器与螺旋分选机配合使用,更换363,364弧形筛筛网孔径为0.15 mm,螺旋分选机的轻产物直接进入筛网沉降式离心机的改造方案,从而改变筛网沉降式离心机入料粒度组成,改善离心机工况,进而提出了适合选煤厂煤质特征和产品结构的粗煤泥回收系统,最终达到解决问题,实现经济效益最大化的目的。
The screenbowl centrifuge applied in North Baode coal preparation plant was suitable for +0.045 mm coarse slime treatment,while some-0.045 mm fine slime fed into the creenbowl centrifuge due to the changed slime water treatment method.Some fine slime circulated and gathered in system,lowered the slime water quality.To resolve this problem,the plant combined hydro-cyclone with spiral separator,narrow the pore size of 363,364 sieve bend to 0.15 mm.To reduce the transformation cost,the plant insists on using the original equipments,just feed the light products of spiral into the screenbowl centrifuge.The working condition of screenbowl centrifuge is improved by changing the size composition of coarse slime.This transformation make the coarse recovery system more suitable for practical coal quality and needed products structure.

关键词(KeyWords)： 保德选煤厂;粗煤泥;筛网沉降式离心机
Baode coal preparation plant;coarse slime;screenbowl centrifuge

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 冯来宏,周瑞通
FENG Lai-hong,ZHOU Rui-tong(Baode Coal Preparation Plant

DOI: 10.13226/j.issn.1006-6772.2013.02.021

参考文献(References)：

• [1]杨俊利,邢玉梅.我国细粒煤脱水技术与设备研究现状[J].过滤与分离,1999(2):37-40.
• [2]谢广元.选矿学[M].徐州:中国矿业大学出版社,2001.
• [3]匡亚莉.选煤厂产品脱水[M].徐州:中国矿业大学出版社,2004.
• [4]邓金迪,沈丽娟,杨泽坤,等.细粒煤脱水技术与设备现状及发展方向[J].矿山机械,2006,34(4):77-80.
• [5]韩恒旺,李炳才,訾涛,等.粗煤泥分选设备及分选工艺研究[J].洁净煤技术,2011,17(2):12-14.
• [6]刘加伟.范各庄选煤厂煤泥水系统改造[J].洁净煤技术,2011,17(2):24-25.
• [7]王正书,周学东.粗煤泥分选工艺在安家岭选煤厂的应用[J].洁净煤技术,2012,18(3):7-9.
• [8]段莉莉.矿区商品煤发热量回归方程的推导及应用[J].煤质技术,2008(2):14-15.