| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pyrite discharge device that has simple constitution and is a dry type, and low in device cost and running cost. <P>SOLUTION: The pyrite discharge device includes: a hopper 1 which stores pyrite 2; a pyrite discharge duct 3 linked to an upper end of the hopper; a pyrite cutout opening 7 which is provided in a lower part of the hopper and opened and closed with an opening and closing door 8; a gate valve 4 which is provided in the pyrite discharge duct and opened and closed with a gate cylinder 5; a lock mechanism 11 which is driven by a lock cylinder 12 to lock/unlock the opening and closing door; and a driving circuit which applies and removes operating pressure to the gate cylinder and lock cylinder, respectively. The driving circuit is configured to lock/unlock the lock mechanism by the lock cylinder, corresponding to the opening and closing of the gate valve by the gate cylinder. <P>COPYRIGHT: (C)2012,JPO&INPIT |
