Blast furnace granular and reclaimed coal injection current practices and possibilities

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:485019

Snowdon, B

Coals of various sizes and types have been successfully injected into blast furnaces for many years. In excess of 4m tonnes of granular coal of 100% less than 5mm have been injected at British Steels Scunthorpe works since 1984. Since late 1994 Bethlehem Steel have also been injecting granular coal into furnace C and D, and more recently US Steels Fairfield works have been using the Clyde design of coal injection system to inject granular coal derived from a fluid bed drier cyclone classifier and shipped to the plant in PD railcars. Each of these sites have one thing in common, a design of pneumatic conveying system which is ideally matched to the growing trend to inject a variety of coal types and other materials into the blast furnace. This paper will describe the system design and discuss the problems associated with some of the materials considered for injection.

• OSTI ID: 485019
• Report Number(s): CONF-960983--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BLAST FURNACES
COAL
COKE
DESIGN
FUEL FEEDING SYSTEMS
FUEL SUBSTITUTION
PIPELINES
PNEUMATIC TRANSPORT
PULVERIZED FUELS