A method for the production of blast furnace - inflation connection, coal, blast furnace - inflation connection, coal, and their use

摘要

Is provided a process for the production of coal, which is to be blown into a blast furnace, the method the production of a coal is made possible, which, when in an elevated amount in a highly oven unit is injected, is no disturbance of the slag flow in the high furnace unit causes. This method comprises: a step (s1), which the analysis of the ash from coal in the raw coal state as well as the determining of the content (w -%) of al, si, ca and mg in the ash is provided; a step (s2), which is the determining of the ash melting point of the coal is provided on the basis of the obtained data; a step (s3), which the selecting a on the coal to another gernden metal species as well as the determining the thereof to another gernden amount on the basis of the obtained data, in order in this manner the ash melting point of the coal to 1200 to 1400°C; a step (s4), which the application of the metal to the coal in the previously determined quantity provided by means of an ion exchange process; and a step (s5), which the carbonization of the obtained in step (4) provides for coal.