黑液水煤浆燃烧试验研究  

Experimental Study of Black-liquor Coal Slurry Combustion

作　　者：兰泽全[1] 曹欣玉[2] 刘建忠[2] 程军[2] 

机构地区：[1]华北科技学院安全工程学院,河北燕郊065201 [2]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《热能动力工程》2008年第1期92-96,共5页Journal of Engineering for Thermal Energy and Power

基　　金：国家重点基础研究发展规划(973)基金资助项目(2004CB217701,2004CB217701-1);河北省教育厅科研基金资助项目(2005-1)

摘　　要：为了考察黑液水煤浆工业应用的可行性及潜在问题,通过热天平机理实验、0.25MW试验炉和4t/h工业炉3种不同规模的燃烧试验,对比研究了黑液浆与制浆原煤及普通浆的着火、燃烧、排放及灰沉积特性。结果表明,与原煤相比,由于钠的催化和助燃作用,黑液浆具有着火容易、燃烧稳定、燃烧时间短、燃尽率高,以及SO2、NOx和烟尘等污染物排放低的特点,是一种新型的洁净燃料,因此采用水煤浆技术治理利用造纸黑液是完全可行的。黑液浆工业应用的潜在问题是具有较强的积灰结渣趋势。To investigate the feasibility and potential problems of the industrial application of the black-liquor coal slurry,a contrast study was conducted of the ignition,combustion,pollutant emissions and ash deposition characteristics of black-liquor slurry,raw coal for slurry preparation and normal slurry through the combustion tests on three different scales,i.e.thermobalance mechanism tests,0.25 MW test furnace and 4 th industrial furnace.The results of the study show that when compared with raw coal,the black-liquor slurry has the following specific features due to the catalytic and combustion-promoting function of sodium:easy ignition,stable combustion,short combustion duration,a high burnout rate and low emissions of such pollutants as SO2,NOx and dust etc.As a result,the slurry in question is considered as a new type of clean fuel.On this basis,the authors have concluded that it is absolutely feasible to use the coal water slurry technology to dispose of and harness the papermaking black liquor.The industrial application of the black liquor slurry is associated with such potential problems as a relatively strong tendency for ash deposition and slag formation in furnaces.

关 键 词：黑液水煤浆 热重分析 燃烧特性 工业试验 

分 类 号：TQ534[化学工程—煤化学工程]