| 摘要 |
<p>Modified coal production equipment comprising: first oxygen adsorption speed measuring means (141-144, 149a, 149b), etc., that sort dried coal (3) dried in a drying device (112), and find the oxygen adsorption speed (Vd) of the dried coal (3); second oxygen adsorption speed measuring means (145-148, 149a, 149b) that sort modified coal (7) deactivated by an deactivation treatment device (130), and find the oxygen adsorption speed (Vr) of the modified coal (7); and an arithmetic control device (150) that calculates the oxygen adsorption speed ratio (N) from formula (Vr-Vd)/Vd=N, on the basis of Vd and Vr, and, if N>Ns (a standard value), reads from a map the increased oxygen concentration value (Oa) in a processing gas (106) corresponding to N, calculates a revised oxygen concentration value (Oc) on the basis of the current oxygen concentration value (Op) and Oa, and controls blowers (133, 135) so as to reach Oc.</p> |
