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Title: Improvement of the blast furnace operation by a new burden distribution control at Kakogawa Works of Kobe Steel

Abstract

It became clear that a spire type central gas flow is required to maintain a stable and economical operation of the blast furnace. However, the gas flow is sometimes changed by the variation of particle size of burden material and coke layer collapse, as well as other causes. Therefore, the Center Coke Charging Method was developed to accurately control the center gas flow. At Kakogawa No. 2 (Inner volume 3,850m[sup 3]) and No. 1(4,550m[sup 3])blast furnaces, the commercial facilities which use this method were installed in August, 1988 and November, 1990. Since then, it has become possible to obtain a stable gas flow with a combination of the Center Coke Chargin Method and movable armor. Consequently, the blast furnace operation was remarkably improved and a low-coke-rate operation (298kg/t) with 123kg/t Pulverized Coal (PC) and 62kg/t oil, and a high pellet ratio operation (70%) was successfully achieved at Kakogawa No. 2 blast furnace. This paper describes the instrumentation used at Kobe Steel for blast furnace control.

Authors:
; ; ; ;  [1]
  1. Kobe Steel LTD., Hatano (Japan). Kakogawa Works
Publication Date:
OSTI Identifier:
6382405
Report Number(s):
CONF-9303222-
Journal ID: ISSN 0099-6874; CODEN: PIRCB9
Resource Type:
Conference
Journal Name:
Proceedings, Ironmaking Conference; (United States)
Additional Journal Information:
Journal Volume: 52; Conference: 52. ironmaking conference, Dallas, TX (United States), 28-31 Mar 1993; Journal ID: ISSN 0099-6874
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; BLAST FURNACES; LOADING; PERFORMANCE; ON-LINE MEASUREMENT SYSTEMS; DESIGN; COAL; COKE; CONSUMPTION RATES; FUEL OILS; GAS FLOW; IRON ORES; LEVEL INDICATORS; PARTICLE SIZE; PULVERIZED FUELS; SAMPLERS; CARBONACEOUS MATERIALS; ENERGY SOURCES; EQUIPMENT; FLUID FLOW; FOSSIL FUELS; FUELS; FURNACES; LIQUID FUELS; MATERIALS; MATERIALS HANDLING; MEASURING INSTRUMENTS; ON-LINE SYSTEMS; ORES; PETROLEUM PRODUCTS; SIZE; 010500* - Coal, Lignite, & Peat- Products & By-Products

Citation Formats

Ono, R, Goto, T, Ito, R, Hanao, K, and Mizuguchi, I. Improvement of the blast furnace operation by a new burden distribution control at Kakogawa Works of Kobe Steel. United States: N. p., 1993. Web.
Ono, R, Goto, T, Ito, R, Hanao, K, & Mizuguchi, I. Improvement of the blast furnace operation by a new burden distribution control at Kakogawa Works of Kobe Steel. United States.
Ono, R, Goto, T, Ito, R, Hanao, K, and Mizuguchi, I. 1993. "Improvement of the blast furnace operation by a new burden distribution control at Kakogawa Works of Kobe Steel". United States.
@article{osti_6382405,
title = {Improvement of the blast furnace operation by a new burden distribution control at Kakogawa Works of Kobe Steel},
author = {Ono, R and Goto, T and Ito, R and Hanao, K and Mizuguchi, I},
abstractNote = {It became clear that a spire type central gas flow is required to maintain a stable and economical operation of the blast furnace. However, the gas flow is sometimes changed by the variation of particle size of burden material and coke layer collapse, as well as other causes. Therefore, the Center Coke Charging Method was developed to accurately control the center gas flow. At Kakogawa No. 2 (Inner volume 3,850m[sup 3]) and No. 1(4,550m[sup 3])blast furnaces, the commercial facilities which use this method were installed in August, 1988 and November, 1990. Since then, it has become possible to obtain a stable gas flow with a combination of the Center Coke Chargin Method and movable armor. Consequently, the blast furnace operation was remarkably improved and a low-coke-rate operation (298kg/t) with 123kg/t Pulverized Coal (PC) and 62kg/t oil, and a high pellet ratio operation (70%) was successfully achieved at Kakogawa No. 2 blast furnace. This paper describes the instrumentation used at Kobe Steel for blast furnace control.},
doi = {},
url = {https://www.osti.gov/biblio/6382405}, journal = {Proceedings, Ironmaking Conference; (United States)},
issn = {0099-6874},
number = ,
volume = 52,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}

Conference:
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