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Study of Raw Coal Characteristics of Huangling Slightly-Caking Coal for Blast Furnace Injection

Xuegong Bi

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Abstract

Systematic study were carried out on the physico-chemical properties of Huangling slightly-caking coal and the feasibility of its injection into the blast furnace.The results show that Huangling slightly-caking coal has a number of advantages and therefore fully meets the basic requirements of coals used for blast furnace injection.Its drawbacks such as lower igniting points,relatively strong explosivity,having certain extent of caking ability and poorer grindability can be dissolved by means of mixing it with anthracite and lean coals.Upon the ranks of coal to be mixed with,the blending ratios of Huangling slightly-caking coal should not exceed 30%-50%.

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What this paper is about

Systematic study were carried out on the physico-chemical properties of Huangling slightly-caking coal and the feasibility of its injection into the blast furnace.The results show that Huangling slightly-caking coal has a number of advantages and therefore fully meets the basic requirements of coals used for blast furnace injection.Its drawbacks such as lower igniting points,relatively strong explosivity,having certain extent of caking ability and poorer grindability can be dissolved by means of mixing it with anthracite and lean coals.Upon the ranks of coal to be mixed with,the blending ratios of Huangling slightly-caking coal should not exceed 30%-50%.

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Available abstract

Systematic study were carried out on the physico-chemical properties of Huangling slightly-caking coal and the feasibility of its injection into the blast furnace.The results show that Huangling slightly-caking coal has a number of advantages and therefore fully meets the basic requirements of coals used for blast furnace injection.Its drawbacks such as lower igniting points,relatively strong explosivity,having certain extent of caking ability and poorer grindability can be dissolved by means of mixing it with anthracite and lean coals.Upon the ranks of coal to be mixed with,the blending ratios of Huangling slightly-caking coal should not exceed 30%-50%.

Key concepts: Caking, Anthracite, Coal, Blast furnace, Metallurgy, Waste management, Environmental science, Materials science

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