摘要
通过对原煤性质的分析,说明原煤中矸石可能存在泥化现象,原煤煤泥含量低,煤抗碎强度好;原煤粒度组成受多因素影响变化较大,块煤系统能力设计应适当加大;原煤为易选煤,可采用高密度排矸工艺等简单易行的选煤方法。根据原煤性质及主要选煤方法特征,确定察哈素选煤厂采用重介质选煤工艺。根据设备选型原则,对选煤厂各主要设备进行了选型,并建议一次建成15 Mt/a的生产能力。最后详细分析了察哈素选煤厂主厂房内外工艺布置,说明选煤厂设计具有"设计合理、技术先进、系统可靠、高效低耗、整体配备、管理方便、效益优先"的优点。
The analysis of raw coal indicate that,the gangue in raw coal may already degrade in water.The little slime in raw coal,the better shatter strength.The size composition of raw coal is rather changeable and is affected by numerous factors,so the capacity of lump coal process system should be large enough.The raw coal is easy to prepare,so should select simple preparation method,such as high density gangue exhaust process.Given the raw coal properties and characteristics of various coal preparation methods,adopt dense medium preparation method for Chahasu coal preparation plant.The equipments selection also follows the relevant principle.The production capacity is designed to 15 Mt/a for completion at once.Analyse the process layout for inside and outside main workshop,further indicate the design is reasonable and low energy consumption.
出处
《洁净煤技术》
CAS
2013年第1期10-15,共6页
Clean Coal Technology
关键词
选煤工艺
设备选型
原煤性质
煤泥水处理
工艺布置
coal preparation process
equipment selection
raw coal property
slime water treatment
process layout
