| 摘要 |
PURPOSE: An apparatus for controlling injection sequence of pulverized coal feed hoppers is provided in which operator is capable of performing repairing operation and facility checking of the feed hoppers without stopping of pulverized coal injection facility to shorten facility reoperating time and increase output. CONSTITUTION: In an apparatus for controlling injection sequence of a plurality of pulverized coal feed hoppers(61-64) for feeding pulverized coal into blast furnace, the apparatus comprises a plurality of feed hopper process control parts(111-114) the number of which is the same as the number of the feed hoppers to control process sequence of the feed hoppers so that the plurality of feed hoppers sequentially perform charging, pressurizing, waiting, feeding and pressure relieving processes; a feeding sequence setting part(200) for arbitrarily setting feeding sequence of the feeding hoppers for feeding pulverized coal into the blast furnace according to operation circumstances; and a feeding sequence control part(300) for outputting a feeding starting signal to the feed hopper process control parts according to feeding sequences per hoppers set in the feeding sequence setting part if a feeding completion signal is inputted into the feeding sequence control part from one of the plurality of feed hopper process control parts, wherein the feeding sequence control part comprises a feeding sequence memory(310), a feeding sequence controller(320), a feeding sequence logic circuit part(330) and transfer switch(340).
|
