Title:
製鋼用アーク炉の廃熱回収設備および製鋼用アーク炉設備
Document Type and Number:
Japanese Patent JP5501841
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a waste heat recovery facility for an arc furnace for steel making capable of efficiently recovering waste heat by suppressing temperature fluctuation of exhaust gas.SOLUTION: A waste heat recovery facility for an arc furnace for steel making is provided with: first exhaust gas passages for discharging exhaust gas from each of a plurality of arc furnaces for steel making; waste heat boilers 6 that are installed in the first exhaust gas passages, and that recover the waste heat from the exhaust gas as saturated steam; a steam accumulator 62 that accumulates steam by merging the saturated steam generated by each of the waste heat boilers 6; a steam superheater 43 that produces superheated steam by heating the steam accumulated in the steam accumulator 62; second exhaust gas passages that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers 6, guided to the steam superheater 43, and provided for superheating of the saturated steam; third exhaust gas passages that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers 6, but which bypasses the steam superheater 43; switching means that switch the exhaust gas passage, after waste heat has been recovered, between the second exhaust gas passages and the third exhaust passages.
Inventors:
Keiji Wakahara
Nobuyuki Fujikura
Yamazaki Masanari
Masayuki Watanabe
Okuyama Yoshinori
Nobuyuki Fujikura
Yamazaki Masanari
Masayuki Watanabe
Okuyama Yoshinori
Application Number:
JP2010097443A
Publication Date:
May 28, 2014
Filing Date:
April 20, 2010
Export Citation:
Assignee:
Steel Plantech Co., Ltd.
International Classes:
C21C5/52; F22B1/18; F22B3/04; F27B3/10; F27B3/24; F27B3/26; F27B3/28; F27D17/00; F27D19/00
Domestic Patent References:
| JP5340501A | ||||
| JP10299424A |
Foreign References:
| WO2010047004A1 |
Attorney, Agent or Firm:
Hiroshi Takayama