Investigation into characteristics of the char bed in the melter gasifier through tuyere probing  

作　　者：GUO Yanling XU Wanren LI Zhaoyi 

机构地区：[1]Ironmaking ＆ Sustainability Division, Research Institute, B aoshan Iron ＆ Steel Co., Ltd., Shanghai 201900, China [2]Ironmaking Plant, Baoshan Iron ＆ Steel Co. , Ltd. , Shanghai,200941, China

出　　处：《Baosteel Technical Research》2010年第3期45-48,共4页宝钢技术研究（英文版）

摘　　要：Tuyere coke probing was conducted at the Baosteel Corex Plant in order to gain a better understanding of the structure of the char bed in the melter gasifier （ MG ）. After screening, the specimens were observed by an optical microscope to determine the mechanism of the char bed formation. X-ray diffraction （XRD） was used to clarify the degree of graphitization and infer thermal history of coke. The results show that the amount of powder coming from lump coal in the burden is much more than that from coke. Based on this, measures for improving the char bed＇ s permeability are proposed.Tuyere coke probing was conducted at the Baosteel Corex Plant in order to gain a better understanding of the structure of the char bed in the melter gasifier （ MG ）. After screening, the specimens were observed by an optical microscope to determine the mechanism of the char bed formation. X-ray diffraction （XRD） was used to clarify the degree of graphitization and infer thermal history of coke. The results show that the amount of powder coming from lump coal in the burden is much more than that from coke. Based on this, measures for improving the char bed＇ s permeability are proposed.

关 键 词：melter gasifier tuyere coke char bed lump coal 

分 类 号：TQ545[化学工程—煤化学工程] V271.4[航空宇航科学与技术—飞行器设计]