| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress the fluctuation of a powder supply amount discharged from a feed hopper by effectively utilizing gas discharged from the feed hopper when transferring powder from a lock hopper to the feed hopper, in a system for using the lock hopper and the feed hopper, pressurizing the powder and continuously supplying it by carrying gas. <P>SOLUTION: In a coal gasification coal transfer system provided with a normal pressure hopper, the lock hopper and the feed hopper, a gas discharge line for exhausting gas from the feed hopper is disposed, an aeration gas supply line for supplying an aeration gas to the lock hopper is disposed, a connection pipe for supplying the exhaust gas exhausted from the feed hopper for the aeration gas of the lock hopper through the gas discharge line is disposed so as to be connected to the gas discharge line and the aeration gas supply line, and the connection pipe is provided with a flow rate adjusting valve and a switching valve. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
