Title

INTENSIVE AND EFFICIENT OPERATION ON NO. 8 BLAST FURNACE AT WISCO

INTENSIVE AND EFFICIENT OPERATION ON NO. 8 BLAST FURNACE AT WISCO

Authorship

Jialong, Yang; Longwen, Lu; Xiangwei, Li; Jinjun., Chen

Jialong, Yang

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Longwen, Lu

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Xiangwei, Li

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Jinjun., Chen

I am this author

DOI

10.5151/2594-357X-22311

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Abstract

Some methods related to blast furnace enhancement and efficiency, such as careful preparation of burden material, reasonable choice of ore configuration, facilities modernization, adjustment of the tuyere size and layout, maintaining a relative higher wind rate, oxygen enrichment and hot blast temperature, keeping a stable furnace inner profile, sizing sinter into smaller and larger portion, mixing nut coke and especially a partial of breeze coke with ore, controlling a suitable burden distribution and wall heat load, retaining appropriate permeability of liquids and gases in furnace etc., have been implemented, based on only general burden material qualities due to the restriction of local resource. As a result, the furnace major index of technical and economical are optimized gradually, the yearly productivity have been kept more than 2.7 t/d.m3 after its blown in on August 2009, and the monthly fuel consumption expressed as fuel rate was reduced to 499 kg/tHM on January 2012 with only 58.3% burden material Fe value.

Some methods related to blast furnace enhancement and efficiency, such as careful preparation of burden material, reasonable choice of ore configuration, facilities modernization, adjustment of the tuyere size and layout, maintaining a relative higher wind rate, oxygen enrichment and hot blast temperature, keeping a stable furnace inner profile, sizing sinter into smaller and larger portion, mixing nut coke and especially a partial of breeze coke with ore, controlling a suitable burden distribution and wall heat load, retaining appropriate permeability of liquids and gases in furnace etc., have been implemented, based on only general burden material qualities due to the restriction of local resource. As a result, the furnace major index of technical and economical are optimized gradually, the yearly productivity have been kept more than 2.7 t/d.m3 after its blown in on August 2009, and the monthly fuel consumption expressed as fuel rate was reduced to 499 kg/tHM on January 2012 with only 58.3% burden material Fe value.

Keywords

Burden material; Sizing sinter; Breeze and nut coke; Burden distribution; Inner profile; Intensifying operation.

Burden material; Sizing sinter; Breeze and nut coke; Burden distribution; Inner profile; Intensifying operation.