Title:
FLUE GAS PURIFICATION AND WASTE HEAT UTILIZATION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/103339
Kind Code:
A1
Abstract:
Disclosed are a flue gas purification and waste heat utilization system and method. The system comprises a flue gas exhaust unit, a primary waste heat utilization unit, a primary flue gas purification unit, a secondary waste heat utilization unit and a secondary flue gas purification unit that are sequentially connected in a flue gas flow direction, wherein the primary flue gas purification unit is configured for removing NOx, large particles and CO in the flue gas, the secondary flue gas purification unit is configured for removing NOx and dioxin in the flue gas, an ammonia-spraying device is externally connected between the flue gas exhaust unit and the primary waste heat utilization unit, and the ammonia-spraying device is configured for injecting ammonia gas into the flue gas exhausted from the flue gas exhaust unit.
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Inventors:
ZHU TINGYU (CN)
YANG YANG (CN)
XU WENQING (CN)
YANG YANG (CN)
XU WENQING (CN)
Application Number:
PCT/CN2020/077875
Publication Date:
June 03, 2021
Filing Date:
March 05, 2020
Export Citation:
Assignee:
INST PROCESS ENG CAS (CN)
International Classes:
F27D17/00
Foreign References:
| CN110793338A | 2020-02-14 | |||
| CN106402898A | 2017-02-15 | |||
| CN108088271A | 2018-05-29 | |||
| CN101893387A | 2010-11-24 | |||
| CN105972605A | 2016-09-28 | |||
| CN108088271A | 2018-05-29 | |||
| US4940478A | 1990-07-10 |
Other References:
LI YUANFA: "The Baghouse System of Consteel Eaf", INDUSTRIAL SAFETY AND ENVIRONMENTAL PROTECTION, vol. 29, no. 7, 31 July 2003 (2003-07-31)
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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