霍尔辛赫选煤厂选煤工艺设计  

Technological design of Huoerxinhe coal preparation plant

作　　者：张瑞文[1] 张信龙[1] 王成江[1] 唐利刚[1] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《洁净煤技术》2013年第4期4-7,共4页Clean Coal Technology

基　　金：天地科技开采设计事业部青年创新基金资助项目(KJ-2013-TDKC-20)

摘　　要：通过工业分析、元素分析、粒度组成和可选性评定对霍尔辛赫选煤厂原煤性质进行分析。说明原煤属低灰～低中灰分煤,以低中灰分煤为主,低挥发分,特低硫～低硫煤,高热值～特高热值,易磨～极易磨,对CO2反应性较低,中等结渣的贫煤;煤质较脆,易碎,不易泥化;块煤-1.7 g/cm3为中等可选;末煤-1.6 g/cm3为易选,末煤-1.8 g/cm3为中等可选。根据选煤厂产品结构,确定采用块煤、末煤分别入选的方式,入选粒度上限为100 mm。通过对比分选工艺,最终制定了适合霍尔辛赫选煤厂煤质特点的选煤工艺:100～13 mm块煤重介浅槽排矸,13.00～0.75 mm末煤预先脱泥有压三产品重介旋流器分选,0.75～0.10 mm粗煤泥螺旋分选,-0.10 mm细煤泥浓缩压滤回收后干燥。最后分析了霍尔辛赫选煤厂工艺流程特点,说明其具有块煤、末煤分别入选,工作浓缩机和事故浓缩机并联布置,工艺系统灵活等优点。Analyse the raw coal properties of Huoerxinhe elemental analysis, particle size composition and washability and low-medium ash ,while the latter is in the majority, low coal preparation plant through proximate analysis, evaluation. The results show that, the raw coal is low volatile, ultra-low and low sulfur, high and extra-high slack coal successively. The top size is 100 mm. Determine the suitable preparation process for Huoerxinhe coal preparation plant. Separate the 100 mm to 13 mm lump coal with heavy medium shallow groove,deslime 13.00 mm to 0. 75 mm fine coal first, then separate with pressurized three-product heavy medium cyclone, separate 0.75 mm to 0.10 mm coarse slime with spiral separator. Concentrate the slurry -0. 10 mm first,then recover and dry. Finally analyse the characteristics of the process, summarize the advantages of this process that each of lump coal and fine coal is processing, work and accidents concentrating machine are arranged in parallel.

关 键 词：入选方式 选煤方法 煤质特性 产品结构 工艺流程 

分 类 号：TD04[矿业工程]