Title:
CIRCULATING FLUIDIZED BED OXYGEN-ENRICHED COMBUSTION APPARATUS AND OPERATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/161821
Kind Code:
A1
Abstract:
Provided are a circulating fluidized bed flue gas recirculation and oxygen-enriched combustion apparatus and an operation method therefor. The oxygen-enriched combustion apparatus comprises an air chamber (101), an air distribution device (102) arranged above the air chamber (101) and a hearth (103) arranged above the air distribution device (102), wherein the upper part of the hearth (103) is connected with a high-temperature cyclone separator (104), the upper part of the high-temperature cyclone separator (104) is connected with a heated surface (106), the lower part of the heated surface (106) is connected with a coal economizer (107), the lower part of the coal economizer (107) is connected with a medium-temperature cyclone separator (108), the medium-temperature cyclone separator (108) is connected with the air chamber (101) via a primary flue gas recirculation fan (109) and a primary air oxygen injector (111) successively, and the medium-temperature cyclone separator (108) is connected with the air distribution device (102) via a secondary flue gas recirculation fan (110) and a secondary air oxygen injector (112) successively. In the operation method for the oxygen-enriched combustion apparatus, a medium-temperature flue gas is adopted as a primary air and a secondary air, which are respectively brought as a recirculation air into the hearth (103), and oxygen is injected to the primary air and the secondary air respectively, which achieves an adjustment of oxygen injection amount, and at the same time provides an oxidizing agent for the hearth (103).
Inventors:
MAO YU (CN)
CHEN CHAN (CN)
HU XIUKUI (CN)
HUO SUOSHAN (CN)
CHEN CHAN (CN)
HU XIUKUI (CN)
HUO SUOSHAN (CN)
Application Number:
PCT/CN2015/099445
Publication Date:
October 13, 2016
Filing Date:
December 29, 2015
Export Citation:
Assignee:
DONGFANG BOILER GROUP CO LTD (CN)
International Classes:
F23C10/10; F23C9/00; F23L7/00
Foreign References:
| CN104848213A | 2015-08-19 | |||
| CN204678329U | 2015-09-30 | |||
| CN102927563A | 2013-02-13 | |||
| CN103205281A | 2013-07-17 | |||
| CN102628590A | 2012-08-08 | |||
| CA2878248A1 | 2014-03-27 |
Attorney, Agent or Firm:
CHENGDU THD INTELLECTUAL PROPERTY CO., LTD. (CN)
成都泰合道知识产权代理有限公司 (CN)
成都泰合道知识产权代理有限公司 (CN)
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