浅槽重介分选工艺在同忻选煤厂二厂改造中的设计探讨
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摘要
为了解决生产中大块原煤增多,手选矸石劳动强度增大以及原煤破碎机无法正常运转的问题,在不影响现有选煤厂正常生产的前提下,同忻选煤厂二厂通过增加浅槽重介分选系统的方法,将原煤中大块矸石预先排除。生产实践表明,进入破碎机的物料预先排矸,破碎量及强度都大幅降低,有效保证了破碎机的正常运转;同时将大块原煤中矸石预先排除,可避免矸石破碎后再进入现有重介质旋流器系统,减少了不必要的环节,降低系统负荷。
In order to tackle the problems relating to increased proportion of large sizes in raw coal, higher labor intensity in hand picking and inability to maintain normal operation of raw coal crusher, it is aimed to switch to the process of pre-removal of large pieces of dirts in raw coal by using shallow-bath heavy-medium separator while ensuring that the normal operation of the plant′s existing washing systems is not affected. Practice shows that the renovation has made it possible to effectively ensure the normal operation of crusher due to drastic reduction of its crushing volume and intensity thanks to the change of its feed from raw coal to clean coal, and to reduce unnecessary process links and workload of the existing heavy medium cyclone system as the pre-removal of large-sized rock pieces can avoid the entry of crushed rock particles into cyclone system.
In order to tackle the problems relating to increased proportion of large sizes in raw coal, higher labor intensity in hand picking and inability to maintain normal operation of raw coal crusher, it is aimed to switch to the process of pre-removal of large pieces of dirts in raw coal by using shallow-bath heavy-medium separator while ensuring that the normal operation of the plant′s existing washing systems is not affected. Practice shows that the renovation has made it possible to effectively ensure the normal operation of crusher due to drastic reduction of its crushing volume and intensity thanks to the change of its feed from raw coal to clean coal, and to reduce unnecessary process links and workload of the existing heavy medium cyclone system as the pre-removal of large-sized rock pieces can avoid the entry of crushed rock particles into cyclone system.
引文
[1] 戴化震,陈森林,汤俊杰.平煤八矿选煤厂工艺改造[J].洁净煤技术,2012,18(4):23-25,43.
[2] 王安.益东选煤厂分选工艺设计与应用[J].煤炭工程,2017,49(2):30-32.
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[7] 王金生.TQF3516型浅槽重介质分选机在李雅庄选煤厂的应用[J].选煤技术,2015(4):52-54,57.
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[12] 贾风军.浅谈浅槽重介分选工艺在上湾选煤厂的应用[J].洁净煤技术,2007(6):99-101.
[13] 唐善华,李越刚.重介浅槽分选机在顾桥选煤厂的应用[J].煤质技术,2008(5):62-64.
[14] 何仕杰.浅槽分选工艺在朱仙庄选煤厂改造中的适应性探讨[J].煤炭加工与综合利用,2017(7):32-34,39.
[15] 原利兵,常春明.重介浅槽在寺河矿选煤厂的实践与探索[J].洁净煤技术,2009,15(1):28-31.
[2] 王安.益东选煤厂分选工艺设计与应用[J].煤炭工程,2017,49(2):30-32.
[3] 朱启军.青龙寺选煤厂优化设计[J].洁净煤技术,2013,19(1):33-38,47.
[4] 戴少康.选煤工艺设计实用技术手册[M].北京:煤炭工业出版社,2010.
[5] 谢广元.选矿学[M].徐州:中国矿业大学出版社,2016:76-82.
[6] 张引刚.四通选煤厂原煤预排矸工艺探讨[J].选煤技术,2014(4):63-66.
[7] 王金生.TQF3516型浅槽重介质分选机在李雅庄选煤厂的应用[J].选煤技术,2015(4):52-54,57.
[8] 彭宝萍,樊晓敏.XZQ1636重介质浅槽分选机在西曲矿选煤厂的应用[J].煤炭加工与综合利用,2013(5):34-36.
[9] 曾庆刚,廖祥国,李平,等.块煤重介浅槽分选机在田庄选煤厂的应用[J].洁净煤技术,2012,18(4):7-9.
[10] 张玉祥,刘珊,付德滨,等.波德斯重介浅槽分选机分选原理及应用[C]//中国煤炭加工利用协会.2008年重介质选煤技术会议论文集.出版地不详:出版社不详,2008.
[11] 史瑞青.重介浅槽分选机的设计优点分析和研究[J].煤炭加工与综合利用,2013(S1):18-20.
[12] 贾风军.浅谈浅槽重介分选工艺在上湾选煤厂的应用[J].洁净煤技术,2007(6):99-101.
[13] 唐善华,李越刚.重介浅槽分选机在顾桥选煤厂的应用[J].煤质技术,2008(5):62-64.
[14] 何仕杰.浅槽分选工艺在朱仙庄选煤厂改造中的适应性探讨[J].煤炭加工与综合利用,2017(7):32-34,39.
[15] 原利兵,常春明.重介浅槽在寺河矿选煤厂的实践与探索[J].洁净煤技术,2009,15(1):28-31.