洁净煤技术

2019, v.25;No.119(01) 86-91

[打印本页] [关闭]
本期目录(Current Issue) | 过刊浏览(Past Issue) | 高级检索(Advanced Search)

高效动力煤分选工艺研究
Study on the separation technology for high efficiency power coal

崔广文;隋文浩;
CUI Guangwen;SUI Wenhao;College of Chemical Environmental Engineering,Shandong University of Science and Technology;

摘要(Abstract):

为解决动力煤分选工艺中脱泥分级筛筛下<2 mm煤泥分级脱水后产品掺入混煤,使部分精煤进入混煤的问题,以高家梁动力煤选煤厂为例,通过分析高家梁动力煤选煤厂煤质特性,使脱泥筛筛下<2 mm煤泥进入三锥角旋流器进行再选,通过改变三锥角旋流器的结构、操作参数等,分析其分选效果及经济效益,最后提出了高效动力煤分选新工艺流程和动力煤分选展望。粗煤泥分选试验结果表明,分选后精煤灰分为8%时,产率为30. 91%,尾煤产率为17. 41%,灰分为48. 34%,细煤泥产率为51. 68%。增加三锥角旋流器后,部分粗颗粒煤泥通过分选得到精煤,每年可多出高发热量精煤15. 41万t,灰分为8%,精煤价格为298元/t,其余所有产品去末煤系统,产率为1. 05%,灰分为48. 34%,总效益达到1 664. 63万元。三锥角水介分选旋流器作为一种新型高效的粗煤泥分选设备,具有结构简单、占用空间小、入料粒度范围宽、适应性强、分选精度高和稳定可靠等优点。三锥角旋流器用于动力煤选煤厂粗煤泥分选,完善了动力煤选煤厂工艺流程,实现选煤效益最大化。
During the separation process of power coal,the clean coal usually re-mixed into the blended coal due to the dewatering of below2 mm coal slurry.The process of Gaojialiang power coal preparation plant was investigated by analyzing the coal quality.Coal slime under 2 mm desliming screen was re-sorted into the triple-cone angle cyclone.By changing the structural parameters and operational parameters of the triangle angle cyclone,the optimal separation results were obtained,and the separation effect and economic benefits were analyzed.According to the test results of the separation of coarse slime,the ash fraction is 8% with the yield of 30. 91%,the tailings yield of 17. 41%,the ash content of 48. 34%,and the fine slime yield of 51. 68%.After increasing triangle angle cyclone,a part of coarse coal slime can be separated to get clean coal.154 100 tons of high calorific clean coal can be produced per year.The price of clean coal is 298 yuan per ton with ash content of 8%.The yield is 1.05% after removing other products from the final coal system,and the ash content is 48. 34% with total benefit at 16. 646 3 million yuan.As a new type of high efficient crude slime separation equipment,triangle angle water medium separation cyclone has the advantages of simple structure,small occupancy space,wide feed size range,strong adaptability,high separation accuracy and high stability and reliability.Triangle angle cyclone is used to separate coarse slime in power coal preparation plant,which improves the process flow of power coal preparation plant and maximizes the benefit of coal preparation.

关键词(KeyWords): 三锥角旋流器;动力煤;工艺流程;煤泥
triangle angle cyclone;power coal;technological process;coal slime

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51474140)

作者(Author): 崔广文;隋文浩;
CUI Guangwen;SUI Wenhao;College of Chemical Environmental Engineering,Shandong University of Science and Technology;

Email:

DOI: 10.13226/j.issn.1006-6772.18121702

参考文献(References):

文章评论(Comment):

序号(No.) 时间(Time) 反馈人(User) 邮箱(Email) 标题(Title) 内容(Content)
反馈人(User) 邮箱地址(Email)
反馈标题(Title)
反馈内容(Content)
扩展功能
本文信息
服务与反馈
本文关键词相关文章
本文作者相关文章
中国知网
分享