Apparatus for producing blast furnace coal

Details Apparatus for producing blast furnace coal Apparatus for producing blast furnace coal

1978-03-06

1979-06-19

Dees, Carl

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 10E, 44 10F, 44 10G, B30B 1100, C10L 502

Patent

active

041585500

ABSTRACT:
A method of producing blast furnace coke from bituminous coals, particularly coals having poor coking capacities in which the coal to be carbonized is ground, predried or preheated, mixed with binders, compressed or formed into briquets having small mechanical resistances and charged into oven chambers, is characterized by fine coals or fine coal mixtures having a swelling index in mixture according to DIN 51741, smaller than 7, and preferably, below 6, and comprising more than 50% of poorly or non-baking coal having a content of volatile matter in excess of 30% or less than 20% which coals or coal mixtures are ground up to attain a surface per unit mass, according to DIN 66145, of from 400 cm.sup.2 to 1200 cm.sup.2 per gram, with from 3% to 8% by weight of organic binders, compressing the mixture to form it into a briquet at a temperature range of from 70.degree. C. to 300.degree. C. and charging the compressed briquet into the oven chambers without substantial intermediate cooling in order to carbonize it.

REFERENCES:
patent: 914247 (1909-03-01), Damon
patent: 3674449 (1972-07-01), Schmalfeld et al.

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