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出願の表示

1. CN103620306 - Method for operating pulverized coal-fired boiler facility

官庁 中華人民共和国
出願番号 201280030210.4
出願日 12.07.2012
公開番号 103620306
公開日 05.03.2014
特許番号 103620306
特許付与日 02.12.2015
公報種別 B
IPC
F23K 3/02
F機械工学;照明;加熱;武器;爆破
23燃焼装置;燃焼方法
K燃焼装置への燃料の供給
3塊状または粉状燃料の燃焼装置への供給または分配
02空気式供給装置,すなわち空気送風によるもの
CPC
F22B 1/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
22STEAM GENERATION
BMETHODS OF STEAM GENERATION; STEAM BOILERS
1Methods of steam generation characterised by form of heating method
02by exploitation of the heat content of hot heat carriers
18the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
F22B 35/002
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
22STEAM GENERATION
BMETHODS OF STEAM GENERATION; STEAM BOILERS
35Control systems for steam boilers
002Control by recirculating flue gases
F22B 37/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
22STEAM GENERATION
BMETHODS OF STEAM GENERATION; STEAM BOILERS
37Component parts or details of steam boilers
008Adaptations for flue gas purification in steam generators,
F23C 9/003
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  ; A CARRIER GAS OR; AIR 
9Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
003for pulverulent fuel
F23C 2202/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  ; A CARRIER GAS OR; AIR 
2202Fluegas recirculation
30Premixing fluegas with combustion air
F23C 2202/50
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  ; A CARRIER GAS OR; AIR 
2202Fluegas recirculation
50Control of recirculation rate
出願人 株式会社神户制钢所
発明者 多田俊哉
代理人 中科专利商标代理有限责任公司 11021
優先権情報 2011154894 13.07.2011 JP
発明の名称
(EN) Method for operating pulverized coal-fired boiler facility
(ZH) 微粉煤燃烧锅炉设备的运转方法
要約
(EN)
Provided is a method for operating a pulverized coal-fired boiler facility, wherein upgraded low-grade coal can be safely used as fuel and an existing facility needs little remodeling. The present invention relates to a method for operating a pulverized coal-fired boiler facility (100) that uses upgraded brown coal as fuel. Boiler exhaust gas taken out of an exhaust gas duct (31) is added to air from a primary air fan (10) to prepare mixed gas with an oxygen concentration of less than 12% in a volume ratio, the mixed gas is caused to separately flow to a carrier gas duct (33) that goes through a GAH (8) and a bypass carrier gas duct (34) that bypasses the GAH (8), and thereafter the mixed gas is supplied to a mill (21).

(ZH)

本发明提供一种能够安全地使用改性劣质煤作为燃料,并且已设的设备改造少即可的微粉煤燃烧锅炉设备的运转方法。本发明涉及一种以改性褐煤为燃料的微粉煤燃烧锅炉设备(100)的运转方法。将从排气管道(31)取出的锅炉排气向来自一次空气风扇(10)的空气添加来准备氧浓度以体积比计小于12%的混合气体,并使该混合气体向经由GAH(8)的输送气体管道(33)和绕过GAH(8)的旁通输送气体管道(34)分开而流动,之后,将该混合气体向磨机(21)供给。

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