瘦煤和贫瘦煤及无烟煤粒度对焦炭质量的影响  

EFFECT OF PARTICLE SIZE OF LEAN COAL,MEAGER LEAN COAL AND ANTHRACITE ON THE COKE QUALITY

作　　者：闫立强[1] 王杰平[1] 陈君安[1] 谢全安[1] 梁英华[1] 

机构地区：[1]河北联合大学,河北唐山硕士生063009

出　　处：《煤炭转化》2013年第4期36-40,共5页Coal Conversion

基　　金：河北省钢铁产业技术升级项目(11212120D);河北省科技计划项目(11215626D-8)

摘　　要：采用邯钢炼焦原料煤研究了瘦煤、贫瘦煤和无烟煤不同粒度对焦炭质量的影响规律;采用气孔率、SEM扫描电镜分析了所得焦炭的孔结构对焦炭热性能的影响;从机理上分析了高变质程度煤粒度对焦炭质量的影响.不同粉碎粒度瘦煤的配煤炼焦实验结果表明,瘦煤粒度<0.2mm时,焦炭的M40提高3%,CSR提高7%.当用无烟煤替代5%的瘦煤(粒度<0.2mm)后,无烟煤粒度的变化对焦炭的热性能影响不大,但相对于空白实验的CSR来说要有所提高,且无烟煤粒度<0.5mm时,焦炭的M40提高3%.贫瘦煤替代5%瘦煤的配煤炼焦实验结果表明,贫瘦煤粒度<3mm时,焦炭质量劣化,但贫瘦煤粉碎到<1mm时,不仅能保证焦炭质量,而且CSR提高5%.The influence of different particle sizes of lean coal,meager lean coal and anthracite on the quality of coke was studied based on the coal resource of Han＇gang Coking Factory.The porosity and SEM were used to analyze the influence of pore structure on the thermal properties of the as-prepared coke.The influence of the particle sizes of high metamorphic grade coal on the quality of coke was analyzed from the mechanism.Based on the coal blending experiment with different particle size of lean coal,the result shows that：when the lean coal particle size ＜0.2 mm,the M40 of the coke was improved by 3％ and the CSR was improved by 7％.When 5 ％ of the lean coal was substituted for anthracite,the thermal properties of the coke was not affected so much and the CSR was improved than the blank experiment with the varied particle sizes of anthracite.Besides,the M40 of the coke was improved by 3 ％ when the anthracite particle size ＜0.2 mm.When 5 ％ lean coal was substituted for meager lean coal and the particle size of the meager lean coal ＜3 mm,the property of the coke was deteriorative.However,the quality of coke was maintained and the CSR can be improved by 5 ％ when the particle size of meager lean coal ＜1 mm.

关 键 词：配煤炼焦 粒度 瘦煤 无烟煤 贫瘦煤 

分 类 号：TQ520.6[化学工程—煤化学工程]