| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat recovery apparatus of a coke cry-quenching apparatus which can increase the amt. of steam generated and the amt. of heat recovered. SOLUTION: Since the second feedwater pipe 18 for supplying boiler feedwater to a heat exchanger 19 of a water heat recovery boiler 15 is equipped with the second water-water heat exchanger 35 at the downstream side of a degasifier 31, the temp. of boiler feedwater supplied to the heat exchanger 19 can be kept remarkably lower than a temp. conventionally obtd., and the temp. of a recirculating gas flowing out of a low-temp. gas outlet port 20 of the boiler 15 can also be kept lower than the conventional temp. Therefore, the flow rate of the recirculating gas supplied to a chamber 10 of the coke dry-quenching apparatus, the amt. of coke treated in the chamber 10, and the amt. of steam generated in the boiler 15 can be remarkably increased.</p> |
