PRACTICE OF PROMOTING PULVERIZED COAL INJECTION RATE AT NO.4 BLAST FURNACE OF CHINA STEEL CORPORATION

机译：提高中钢4号高炉煤粉喷射率的实践。

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China Steel Corporation (CSC) has four blast furnaces in operation with an average PC rate of 136-143 kg/thm with the dilute phase injection system in 2006-2007. No.4 blast furnace reached a PC rate of 151 kg/thm in February 2004, approximately 117 percent of the designed injection capacity of 45t/hr. Due to the limitation of the injection capacity of the existing system; CSC carried out a project to upgrade the injection system in 2006. The injection system of CSC No.4 blast furnace was modified to dense phase system according to the technology of KUETTNER Company in one scheduled shutdown in May 2007. Through the proper burden distribution and operational parameter adjustment, the PC rate was increased to 178 kg/thm in November 2007, corresponding to a 65t/hr injecting rate with a productivity of 2.58 t/m3/d. This paper describes the modifications of the injection system, the problems encountered after commissioning and the strategies of process control.

机译：中钢集团（CSC）在2006年至2007年间运行着四个高炉，平均PC速率为136-143 kg / thm，采用稀相注入系统。 2004年2月，第四高炉的PC产量达到151 kg / thm，约为设计的45t / hr注入量的117％。由于现有系统注射能力的限制； CSC在2006年进行了一个项目，对注入系统进行升级。根据KUETTNER公司的技术，CSC 4号高炉的注入系统被改造为密相系统，并计划于2007年5月关闭。调整操作参数后，PC速率在2007年11月增加到178 kg / thm，相当于65t / hr的注入速率，生产率为2.58 t / m3 / d。本文介绍了喷射系统的修改，调试后遇到的问题以及过程控制策略。

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来源
《McMaster symposium on iron and steelmaking;Symposium on the challenges of coal injection in today's blast furnaces; 20080923-25;20080923-25; Hamilton(CA);Hamilton(CA)》|2008年|P.47-63|共17页
会议地点 Hamilton(CA);Hamilton(CA)
作者
Nai-Wen Liang; Chung-Tsai Chang;
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作者单位

China Steel Corporation Chung Kang Road, Hsiao Kang, Kaohsiung, Taiwan, ROC;

China Steel Corporation Chung Kang Road, Hsiao Kang, Kaohsiung, Taiwan, ROC;

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原文格式 PDF
正文语种 eng
中图分类钢铁冶炼（黑色金属冶炼）（总论）;
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机译：六阶段3-D模型研究富氧高炉煤粉和木炭同时注入的速率
2. A Six-phases 3-D Model to Study Simultaneous Injection of High Rates of Pulverized Coal and Charcoal into the Blast Furnace with Oxygen Enrichment [J] . Jose Adilson de Castro, Alexandre Jose da Silva, Yasushi Sasaki, ISIJ international . 2011,第5期

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3. Behaviour of fines and coal combustibility with high rate pulverized coal injection in the blast furnace [J] . S. Matsuzaki, M. Ichida, T. Sugiyama, Revue de Metallurgie: Cahiers d'Informations Techniques . 1998,第3期

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4. PRACTICE OF PROMOTING PULVERIZED COAL INJECTION RATE AT NO.4 BLAST FURNACE OF CHINA STEEL CORPORATION [C] . Nai-Wen Liang, Chung-Tsai Chang McMaster symposium on iron and steelmaking . 2008

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PRACTICE OF PROMOTING PULVERIZED COAL INJECTION RATE AT NO.4 BLAST FURNACE OF CHINA STEEL CORPORATION

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