Method for producing ferrocoke
AssigneeJfe Steel Corporation
InventorsHidekazu Fujimoto, Takashi Anyashiki, Toru Shiozawa
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Abstract
A method for producing ferrocoke in which it is possible to use a cheap and poor-quality coal having a high ash content while suppressing the decrease of the strength in ferrocoke or formed coke and a special coal mixing is not performed with respect to the fusion frequently causing problems in the carbonization with the shaft furnace. In a method for producing ferrocoke by molding and carbonizing a mixture of coal and iron ore, the coal is a single coal or a mixture of plural coals and a non-caking or slight caking coal having a load average value of ash content of not less than 10.7% and a load average value of mean maximum reflectance of not less than 0.81% is used.
Claims2
A method for producing ferrocoke comprising molding and carbonizing a mixture of coal and iron ore,
- wherein the coal is (i) a single coal having a load average value of ash content of not less than 10.7% and a load average value of mean maximum reflectance of not less than 0.81%, or (ii) a mixture of plural coals and a non-caking or slight caking coal, the mixture having a load average value of ash content of not less than 10.7% and a load average value of mean maximum reflectance of not less than 0.81%.
Dependencies are inferred from the claim text.