| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device for recovery of valuable metal that emits clean exhaust gas. <P>SOLUTION: The device for recovery of valuable metal includes: a combustion chamber 2 having a combustion space 20; a bottomed heating container 11 for accommodating an object to be processed, which is arranged in the combustion chamber 2 and has an opening at the top; a first combustion burner 3 for supplying combustion gas to the combustion chamber 2; a tower 5 provided in an protruding state above the combustion chamber 2 to seal the upper end opening 11a of the heating container 11; a gas treatment chamber 7 communicated with the tower 5 through a gas introduction path 6, and to which unburnt gas produced in heating the object to be processed is introduced; a second combustion burner 8 for supplying combustion gas to the gas treatment chamber 7; a gas introduction path 9 for introducing the combustion gas produced in the gas treatment chamber 7 to the combustion chamber 2; a flue 4 for exhausting the combustion gas from the combustion chamber 2 to the outside; and a communication path 13 provided in the heating container 11, and communicating between the upper part of the combustion chamber 2 and the inside of the tower 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
