Title:
PULVERIZED COAL DEEP LOW-OXYGEN COMBUSTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/202053
Kind Code:
A1
Abstract:
A pulverized coal deep low-oxygen combustion system, comprising a boiler flue gas extraction fan (5) and a mixer (8), wherein an over-fire air nozzle (17) is provided above a main boiler burner (14); an inlet of the boiler flue gas extraction fan (5) is connected to a boiler back-end flue; a lower middle portion of the main boiler burner (14) is provided with a pulverized coal burner nozzle (15), and the top thereof is provided with a secondary air nozzle (16); and the secondary air nozzle (16) and the over-fire air nozzle (17) are connected to a first inlet of the mixer (8) by means of a hot air pipe (1), an outlet of the boiler flue gas extraction fan (5) is connected to a second inlet of the mixer (8), a cold air pipe (3) is connected to a third inlet of the mixer (8), an outlet of the mixer (8) is connected to an inlet of a coal mill (13), and an outlet of the coal mill (13) is connected to the pulverized coal burner nozzle (15).
Inventors:
ZHANG YUBO (CN)
ZHANG LIANGPING (CN)
WANG CHUNCHANG (CN)
YANG HUI (CN)
SHEN ZHI (CN)
ZHANG HAILONG (CN)
FU LONGLONG (CN)
LIU CHAO (CN)
LIU XING (CN)
ZHANG LIANGPING (CN)
WANG CHUNCHANG (CN)
YANG HUI (CN)
SHEN ZHI (CN)
ZHANG HAILONG (CN)
FU LONGLONG (CN)
LIU CHAO (CN)
LIU XING (CN)
Application Number:
PCT/CN2022/132032
Publication Date:
October 26, 2023
Filing Date:
November 15, 2022
Export Citation:
Assignee:
XIAN THERMAL POWER RES INST CO (CN)
International Classes:
F23C5/08; F23D1/00; F23C7/00; F23D1/02; F23K1/00; F23L15/00; F23M5/08
Foreign References:
| CN114777114A | 2022-07-22 | |||
| CN110822412A | 2020-02-21 | |||
| CN203223912U | 2013-10-02 | |||
| CN108758679A | 2018-11-06 | |||
| CN110822413A | 2020-02-21 | |||
| CN113503562A | 2021-10-15 | |||
| JPH0424404A | 1992-01-28 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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