| 摘要 |
<p>A device for unplugging air ports on chemical recovery boilers. Chemical recovery boilers are typically used for recovery of black liquor, but are periodically shutdown due to excessive build-up of carryover on air intake ports. Damping ports allow variation in air input to improve boiler efficiency, but are susceptible to port pluggage. Therefore, boilers utilize various rodding devices to unplug the air ports. The instant invention combines an automatic rodding system within an air damper to boost efficiency of the boiler. The invention uses a pivotally mounted damper (43) to cover the port (18) and provide damping to the boiler furnace. The damper (43) is aligned with and superjacent the rodding mechanism (26) and is supported intermediate the port (18) and the pivotal mounting by a linkage (51, 52) which raises and lowers the damper (43) responsive to linear motion of the rodding mechanism (26).</p> |
