摘要
提出了一种高比例利用低阶煤制备冶金型焦的方法。将低阶煤、低阶煤热解制成的半焦、具有一定黏结能力的烟煤和煤沥青混合并搅拌均匀,使用线压力≥200kN/cm的大型高压制球机压成型煤。高压型煤在约1050℃高温干馏后成为冶金型焦。测试表明,冶金型焦的抗压强度在5000N以上,CRI为54%,CSR达到65%,可作为冶金焦炭使用。
This paper presents a method for preparing metallurgical formed coke from low rank coal in high proportion.Low rank coal,semi-coke from low rank coal,bituminous coal with some binding capacity and coal asphalt are uniformly mixed and pressed into coal briquette by high-pressure pelletizing machine with linear pressure≥200 kN/cm.The high-pressure coal briquette becomes metallurgical formed coke after dry distillation at about 1050℃.The test result shows that the compressive strength of the metallurgical formed coke is more than 5000 N,with CRI 54%and CSR 65%,which can be used as metallurgical coke.
作者
郭瑞
严瑞山
Guo Rui;Yan Ruishan(College of Chemical Engineering,North China University of Science&Technology,Tangshan063210,China;Xinjiang Ginstar Low Rank Coal Utilization Research Co.,Ltd.,Hami839000,China)
出处
《燃料与化工》
2023年第2期8-10,7,共4页
Fuel & Chemical Processes
关键词
型焦
低阶煤
反应性
反应后强度
Formed coke
Low rank coal
Coke reactivity(CRI)
Coke strength after reaction(CSR)
