Coal grinding by roller grinding mills for pulverized coal injection in blast furnaces

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Iron and Steel Engineer

OSTI ID:131724

Kasseck, K ^[1]; Salewski, G ^[2]

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1. Loesche South Africa Pty. Ltd., Loesche (South Africa)
2. Loesche GmbH, Dusseldorf (Germany)

Roller grinding mills are increasingly being used for producing the pulverized coal required for injection into blast furnaces, an accepted technology worldwide for lowering coke consumption in blast furnaces. Coal is currently being injected into blast furnaces at the rate of 80 to 200 kg/tonne of hot metal which results in a coke savings of 72 to 180 kg/tonne of hot metal. The pulverized coal for coal injection is produced in coal grinding and drying plants currently having a capacity from 15 to 240 tonnes/hr. The grinding plant with Loesche roller grinding mills at the Ilva steelworks, Taranto, Italy, that is described, illustrates design concepts and operation.

• OSTI ID: 131724
• Journal Information: Iron and Steel Engineer, Vol. 72, Issue 10; Other Information: PBD: Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BLAST FURNACES
COAL PREPARATION
BITUMINOUS COAL
COMMINUTION
DRYING
PULVERIZERS
PULVERIZED FUELS
FUEL CONSUMPTION
COAL PREPARATION PLANTS
DESIGN
OPERATION
INERT ATMOSPHERE