Pulverized coal injection operation on CSC No. 3 blast furnace
Conference
·
OSTI ID:504686
- China Steel Corp., Kaohsiung (Taiwan, Province of China)
The pulverized coal injection system was introduced for the first time in No. 1 and No. 2 blast furnace at China Steel Corporation (CSC) in 1988. Currently the coal injection rate for both blast furnaces has steadily risen to 70--89 kg/thm (designed value). No 3 blast furnace (with an inner volume of 3400 m3) was also equipped with a PCI system of Armco type and started coal injection on November 17, 1993. During the early period, some problems such as injection lance blocking, lance-tip melting down, flexible hose wear, grind mill tripping occasionally interrupted the stable operation of blast furnace. After a series of efforts offered on equipment improvement and operation adjustment, the PC rate currently reaches to 90--110 kg/thm and furnace stable operation is still being maintained with productivity more than 2.20.
- OSTI ID:
- 504686
- Report Number(s):
- CONF-960954--
- Country of Publication:
- United States
- Language:
- English
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