CN1035173A - 用流化床燃烧固体燃料的方法 - Google Patents

用流化床燃烧固体燃料的方法 Download PDF

Info

Publication number
CN1035173A
CN1035173A CN89100176A CN89100176A CN1035173A CN 1035173 A CN1035173 A CN 1035173A CN 89100176 A CN89100176 A CN 89100176A CN 89100176 A CN89100176 A CN 89100176A CN 1035173 A CN1035173 A CN 1035173A
Authority
CN
China
Prior art keywords
air
fluid bed
ratio
return
combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN89100176A
Other languages
English (en)
Other versions
CN1011335B (zh
Inventor
山内康弘
荒川善久
藤间幸久
竹永清昌
日野裕一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of CN1035173A publication Critical patent/CN1035173A/zh
Publication of CN1011335B publication Critical patent/CN1011335B/zh
Expired legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00Fluidised bed combustion apparatus
    • F23C10/02Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00Fluidised bed combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02Pneumatic feeding arrangements, i.e. by air blast
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005Separating solid material from the gas/liquid stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/38Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
    • B01J8/384Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
    • B01J8/388Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only externally, i.e. the particles leaving the vessel and subsequently re-entering it
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00Fluidised bed combustion apparatus
    • F23C10/02Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2206/00Fluidised bed combustion
    • F23C2206/10Circulating fluidised bed
    • F23C2206/101Entrained or fast fluidised bed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

改进的用流化床燃烧固体燃料的方法,减少NOX 生成量,提高燃烧效率。把主回路空气、第二及第三 回路空气分别从主回路空气入口、流化床上方空间的 第二回路空气入口以及第二回路空气入口上方的第 三回路空气入口送入。分别控制主回路、第二回路及 第三回路的空气流量,使送入主回路空气、第二回路 空气、第三回路空气以后,空气量与理论空气量的比 分别为0.6-0.8,0.8-1.0及1.0以上。最好把喷出 的煤灰重新送回流化床。

Description

本发明涉及对用流化床燃烧如煤、油焦、油页岩等固体燃料的方法的改进。
下面参照图6说明用流化床燃烧固体燃料的现有方法。在该图中,通过装有流动材料如砂子、石炭岩等的流化床1底部的主回路空气进口,送入主回路空气,使流动材料流化,同时通过燃料进口3装入固体燃料如煤等,使它燃烧。使水或蒸汽流过流化床1里的热交换器管4来控制流化床1的温度。此外在上方空间5里安装了一个对流式热交换器6,让水或蒸汽流过该热交换器来采集废气具有的热量。此外为了抑制NOX气体的生成量和CO气体的排放,让第二回路空气由第二回路空气入口7送入。通常为了减少CO气体的产生,流化床1是在主回路空气形成的空气量与理论空气量的比大约为1.0的条件下工作的。其理由是流化床燃烧是在800-900℃的较低温度下进行的,上方空间5的温度要低到500-700℃,因此,如果固体燃料在流化床上以1.0的低空气比值或更低的比值燃烧,那末甚至用了第二回路空气也会出现使生成的CO气体不能完全燃烧而排放到外边去的不利现象。因此,在实际工作条件下,限度是把主回路空气在流化床1里形成的空气量与理论空气量的比减小到1.0左右,从而流化床不是还原气氛,结果NOX气体的生成量增多(150-200ppm,相当于6%O2)。
要指出的是,用除尘器8或其他类似装置把从流化床喷飞出来的未燃尽煤灰收集並储存在储存室9。为了提高燃烧效率,把一部分收集到的未燃烧尽煤灰通过未燃烧尽煤灰进料器10和循环管道11,以每公斤煤0.1-0.5公斤煤灰的循环比例重新送回流化床1,但是其余的未烧尽煤灰通过煤灰排放口12排出。
未烧尽煤灰在除尘器8里被分离。燃烧产生的废气经除尘器的出口13排放。
根据用现有技术的流化床燃烧固体燃烧的上述方法,一般获得下述性能:
①NOX气体的生成量为150-250ppm(相当于6%O2),
②燃烧效率为90-95%。
由现有技术的燃烧方法所能达到的上述性能水平使人不满意。
因此本发明的目的是提供一种用流化床燃烧固体燃料的改进方法,其中NOX气体的生成量少而燃烧效率高。
根据本发明的一个特征,提供了一种用流化床燃烧固体燃料的方法,该方法包括以下各个步骤:通过流化床上的主回路空气入口送入主回路空气,使流化床里的空气量与理论空气量的比大约为0.6-0.8;通过流化床上方空间的第二回路空气入口送入第二回路空气,使送入第二回路空气后空气量与理论空气量的比可到0.8-1.0左右;通过上方空间里的第二回路空气入口以上的第三回路空气入口送入第三回路的空气,使送入该空气后的空气量与理论空气量的比可达1.0或更高;以及使从流化床飞出的未燃尽煤灰重新循环回流化床。
根据本发明,由于除了以前用的第二回路空气进口外,在流化床燃烧炉的上方空间里还有第三回路空气进口,並且使由主回路空气在流化床里形成的空气量与理论空气量的比为0.6-0.8,流化床里因缺少空气而呈现出还原性燃烧,因此抑制了NOX气体的产生。通过经流化床上方空间的第二回路空气入口送入第二回路的空气,使在流化床里生成的未燃烧气体部分地燃烧,且其温度达到900-1000℃。即使在送入第二回路空气以后,该空气量与理论空气量的比才为0.8-1.0左右,这表示它是一种还原气氛。而且由于该部分的温度是900℃或900℃以上的高温,这将发生NOX气体的还原和NH3、HCN气体分解。此后,通过经过空间里第二回路空气入口上方的第三回路空气入口送入第三回路的空气,使未燃烧的CO气体燃烧,这样燃烧过程就完成了。
从流化床喷飞出的未燃尽煤灰的循环不仅提高了燃烧效率,而且由于往流化床里添进了未燃烧的碳而近一步加强了流化床里的还原气氛,因而有效地使NOX气体还原。
关于流化床里的温度,其温度越低,就越能抑制流化床里NOX气体的生成量,因此,从抑制NOX气体的产生量来看,较低温度是较好的。
结合附图通过下面对本发明一个最佳实施例的说明,可使本发明的上述和其他目的、特征和优点更显而易见。
在附图中,
图1是本发明一个最佳实施例的用流化床燃烧固体燃料的方法的示意图,
图2表示出由主回路空气形成的空气量的比值与NOX气体生成量之间的关系曲线,
图3表示送入第二回路空气后的空气量的比与NOX生成量之间的关系曲线,及该空气量的比与上方空间温度的关系曲线,
图4表示循环比与NOX气体生成量的关系曲线,及该循环比与燃烧效率之间的关系曲线,
图5表示流化床内的温度与NOX气体生成量之间的关系曲线,
图6是现有技术用流化床燃烧固体燃料的方法简图。
现在参照图1按照本发明的一个最佳实施例说明用流化床燃烧固体燃料的方法。
在图1中,和图6相同的数字表示相同的作用和名称。现在参看图1。把主回路空气经过在装了流动材料(如砂子、灰石等)的流化床1的底部主回路空气进口送入,使流动材料流化,然后把如煤或其他类似固体燃料经装料口3装入。由控制装置(图中未画出)调节主回路空气的流量使流化床里的空气量与理论空气量的比大约等于0.6-0.8。
调节流过流化床1里的热交换器管道4的流体流量使流化床1里的温度保持在800-1000℃。
在流化床1里,由于空气量与理论空气量的比为0.6-0.8而呈现出还原气氛,所以生成未燃烧气体,但是经流化床1的上方空间靠下部分5a附近的第二回路空气入口7送入的第二回路空气使一部分未燃烧气体燃烧。因此,上方空间靠下部分5a的温度大约在900-1100℃。要指出的是通过调节从第二回路空气的入口7送入的空气量使该区域的空气量与理论空气量的比达到大约0.8-1.0。
再有,为了使其余未燃烧气体(主要是CO)燃烧,把第三回路的空气经流化床1上方空间的靠上部分5b附近的第三回路空气入口14送入,並且使燃烧过程在该部分完成。
要指出的是通过调节第三回路的空气流量使送入第三回路后的空气量与理论空气量的比达到1.0左右或更高。
用对流式热交换器6冷却並且从除尘器8里未燃烧尽煤灰中分离出的燃烧产生的废气从除尘器的排放口13排入大气。在除尘器8里分离出来的未燃烧尽煤灰被储存在储存室9,然后把它们以等于或大于1的循环比例经未燃烧尽煤灰加料器10和循环管道11送回流化床1,此外把与装到燃烧系统里的煤所含煤灰含量相应的煤灰经储存室9的煤灰排放口12排放到外边。
为了参照起见,将主回路空气形成的空气量与理论空气量的比和NOX生成量之间的关系曲线示于图2。正如从图2所示曲线所见,当由主回路的空气形成的空气量与理论空气量的比减小时,NOX的生成量也减少,並且当该空气量的比在0.6-0.8时,NOX的生成量最少。如果由主回路的空气形成的空气量的比近一步减小,未燃烧气体将增加,同时由于上方空间里未燃烧气体的增加,使NOX的生成量也增加。因为这个理由主回路的空气在流化床1里形成的空气量与理论空气量的比被调整在0.6-0.8左右。
图3表示出送入第二回路空气后的空气量与理论空气量的比同NOX生成量之间的关系曲线以及主回路空气量的比为0.7时送入第二回路空气后的空气量与理论空气量的比同上方空间的温度之间的关系曲线。
如由图3所示曲线所见,当送入第二回路空气后的空气量的比调到0.8-1.0时,呈现还原性气氛的上方空间的温度要升高,并且NOX的生成会减少。
此外,图4表示未燃烧煤灰的循环比例与NOX生成量之间的关系曲线以及前者和燃烧效率之间的关系曲线。如图4所示曲线所见,增加循环比例,NOX的生成量将减少,燃烧效率增加。要指出的是循环比例等于或大于1时,各种效果几乎都达到饱和,所以循环比例要等于或大于1。
再有,图5表示流化床里的温度与NOX生成量之间的关系曲线,正如由图5所示曲线所见,由于降低了流化床的温度,所以NOX的生成量减少了。但是如果流化床的温度降得过低,燃烧效率将变低,因此流化床的温度最好选在800-1000℃之间。
如上详细所述,按照本发明,NOX的生成量与当前燃烧方法的相比大大减少了,而且大大提高了燃烧效率。这些改进可用数字更具体地说明如下:
(1)NOX的生成量降低了而且在烧普通煤时,NOX的生成量为100ppm(6%O2)或更少些。
(2)燃烧效率提高到95-99%左右。
尽管上面用本发明的一个最佳实施例说明了本发明的原理,当然在不违背本发明实质前提下可以举出本发明的无数个不同实施例。

Claims (2)

1、一种用流化床燃烧如煤、油焦及油页岩等固体燃料的方法,其特征在于包括以下各个步骤:
(1)把主回路的空气经流化床上的主回路空气入口送入,使该流化床里的空气量与理论空气量的比为0.6-0.8左右,
(2)把第二回路的空气经流化床的上方空间里的第二回路空气入口送入,使送入第二回路的空气后的空气量与理论空气量的比达到0.8-1.0左右,
(3)把第三回路的空气经该上方空间里的第二回路入口以上的第三回路空气入口送入,使送入第三回路空气后的空气量与理论空气量的比等于或大于1.0。
2、一种如权利要求1的燃烧固体燃料的方法,其特征是把从流化床喷飞出的未燃烧尽煤灰重新送回流化床。
CN89100176A 1988-01-12 1989-01-12 用流化床燃烧固体燃料的方法 Expired CN1011335B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3085/88 1988-01-12
JP63003085A JP2637449B2 (ja) 1988-01-12 1988-01-12 流動床燃焼方法

Publications (2)

Publication Number Publication Date
CN1035173A true CN1035173A (zh) 1989-08-30
CN1011335B CN1011335B (zh) 1991-01-23

Family

ID=11547503

Family Applications (1)

Application Number Title Priority Date Filing Date
CN89100176A Expired CN1011335B (zh) 1988-01-12 1989-01-12 用流化床燃烧固体燃料的方法

Country Status (5)

Country Link
US (1) US4962711A (zh)
JP (1) JP2637449B2 (zh)
KR (1) KR920001094B1 (zh)
CN (1) CN1011335B (zh)
AU (1) AU591621B2 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1323260C (zh) * 2005-06-24 2007-06-27 北京航天动力研究所 可燃粉体旋流组合燃烧器
CN104619422A (zh) * 2012-06-28 2015-05-13 维美德技术有限公司 电过滤器中的装置及方法
CN104769680A (zh) * 2012-10-31 2015-07-08 芬兰国家技术研究中心股份公司 用于处理废弃材料的方法和设备以及产物气体

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156099A (en) * 1988-08-31 1992-10-20 Ebara Corporation Composite recycling type fluidized bed boiler
CA2046890C (en) * 1989-02-17 2000-01-11 Takeyuki Naito Fluidized bed combustion furnace
JPH0356011U (zh) * 1989-10-03 1991-05-29
US5020451A (en) * 1989-10-05 1991-06-04 Ishikawajima-Harima Heavy Industries Co., Ltd. Fluidized-bed combustion furnace
US5054436A (en) * 1990-06-12 1991-10-08 Foster Wheeler Energy Corporation Fluidized bed combustion system and process for operating same
US5195450A (en) * 1990-10-31 1993-03-23 Combustion Engineering, Inc. Advanced overfire air system for NOx control
US5176513A (en) * 1990-12-04 1993-01-05 Georgia Tech Research Corporation Pulse combustor apparatus
US5228399A (en) * 1992-03-30 1993-07-20 University Of Kentucky Research Foundation In-bed staged fluidized bed combustion apparatus and method
US5325796A (en) * 1992-05-22 1994-07-05 Foster Wheeler Energy Corporation Process for decreasing N2 O emissions from a fluidized bed reactor
US5239946A (en) * 1992-06-08 1993-08-31 Foster Wheeler Energy Corporation Fluidized bed reactor system and method having a heat exchanger
US5343820A (en) * 1992-07-02 1994-09-06 Combustion Engineering, Inc. Advanced overfire air system for NOx control
US5392736A (en) * 1993-12-27 1995-02-28 Foster Wheeler Energy Corporation Fludized bed combustion system and process for operating same
US5363812A (en) * 1994-02-18 1994-11-15 The Babcock & Wilcox Company Method and apparatus for controlling the bed temperature in a circulating fluidized bed reactor
US5660125A (en) * 1995-05-05 1997-08-26 Combustion Engineering, Inc. Circulating fluid bed steam generator NOx control
US5784975A (en) * 1996-12-23 1998-07-28 Combustion Engineering, Inc. Control scheme for large circulating fluid bed steam generators (CFB)
WO1999066264A1 (fr) * 1998-06-16 1999-12-23 Mitsubishi Heavy Industries, Ltd. Technique d'exploitation d'incinerateur a lit fluidise et incinerateur
FR2802287B1 (fr) * 1999-12-14 2002-01-11 Abb Alstom Power Comb Procede pour l'amelioration de la combustion dans un systeme a lit fluidise circulant et systeme correspondant
JP3652983B2 (ja) 2000-12-06 2005-05-25 三菱重工業株式会社 流動床燃焼装置
KR100763775B1 (ko) * 2001-12-31 2007-10-05 삼성엔지니어링 주식회사 Rdf를 위한 내부순환 유동층 연소로
US8449288B2 (en) * 2003-03-19 2013-05-28 Nalco Mobotec, Inc. Urea-based mixing process for increasing combustion efficiency and reduction of nitrogen oxides (NOx)
US7670569B2 (en) * 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods
US7537743B2 (en) * 2004-02-14 2009-05-26 Mobotec Usa, Inc. Method for in-furnace regulation of SO3 in catalytic NOx reducing systems
US8251694B2 (en) 2004-02-14 2012-08-28 Nalco Mobotec, Inc. Method for in-furnace reduction flue gas acidity
US7410356B2 (en) * 2005-11-17 2008-08-12 Mobotec Usa, Inc. Circulating fluidized bed boiler having improved reactant utilization
JP2007147135A (ja) * 2005-11-25 2007-06-14 Dowa Holdings Co Ltd 流動床炉
KR100911030B1 (ko) * 2007-10-18 2009-08-05 한국에너지기술연구원 열분해반응로와 연소로가 일체로 형성된 열분해연소시스템
KR101539127B1 (ko) * 2007-11-07 2015-07-24 메타워터 가부시키가이샤 유동 소각로 및 이것을 이용한 오니의 유동 소각 방법
US8069824B2 (en) 2008-06-19 2011-12-06 Nalco Mobotec, Inc. Circulating fluidized bed boiler and method of operation
FI123853B (fi) * 2009-03-06 2013-11-15 Metso Power Oy Menetelmä typenoksidipäästöjen vähentämiseksi happipoltossa
FI125496B (fi) * 2009-08-17 2015-10-30 Valmet Technologies Oy Menetelmä ja järjestely palamisolosuhteiden optimoimiseksi leijukerroskattilassa
FI125314B (fi) * 2011-09-30 2015-08-31 Fortum Oyj Menetelmä typenoksidipäästöjen ja korroosion vähentämiseksi kerrosleijukattilassa ja kerrosleijukattila
CN108413388B (zh) * 2018-05-07 2023-11-28 上海交通大学 一种风粉周向偏置的低氮旋流燃烧器
CN111520707B (zh) * 2020-06-23 2022-07-08 杭州和利时自动化有限公司 一种循环流化床锅炉风量控制方法、系统及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165717A (en) * 1975-09-05 1979-08-28 Metallgesellschaft Aktiengesellschaft Process for burning carbonaceous materials
DE2624302A1 (de) * 1976-05-31 1977-12-22 Metallgesellschaft Ag Verfahren zur durchfuehrung exothermer prozesse
JPS5359268A (en) * 1976-11-10 1978-05-27 Mitsui Eng & Shipbuild Co Ltd Method of burning-up low nox fluid of sludge
JPS55128712A (en) * 1979-03-28 1980-10-04 Agency Of Ind Science & Technol Fluidizing combusting method for coal with low content of nox
US4704084A (en) * 1979-12-26 1987-11-03 Battelle Development Corporation NOX reduction in multisolid fluidized bed combustors
US4809625A (en) * 1985-08-07 1989-03-07 Foster Wheeler Energy Corporation Method of operating a fluidized bed reactor
JPH0799253B2 (ja) * 1986-01-21 1995-10-25 石川島播磨重工業株式会社 流動床炉の二次燃焼促進法
US4773339A (en) * 1987-05-15 1988-09-27 Foster Wheeler Energy Corporation Process for removing nitrous oxides from a gas
US4771712A (en) * 1987-06-24 1988-09-20 A. Ahlstrom Corporation Combustion of fuel containing alkalines
US4827723A (en) * 1988-02-18 1989-05-09 A. Ahlstrom Corporation Integrated gas turbine power generation system and process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1323260C (zh) * 2005-06-24 2007-06-27 北京航天动力研究所 可燃粉体旋流组合燃烧器
CN104619422A (zh) * 2012-06-28 2015-05-13 维美德技术有限公司 电过滤器中的装置及方法
CN104619422B (zh) * 2012-06-28 2017-09-01 维美德技术有限公司 电过滤器中的装置及方法
CN104769680A (zh) * 2012-10-31 2015-07-08 芬兰国家技术研究中心股份公司 用于处理废弃材料的方法和设备以及产物气体

Also Published As

Publication number Publication date
KR920001094B1 (ko) 1992-02-01
JPH01181005A (ja) 1989-07-19
US4962711A (en) 1990-10-16
AU2766589A (en) 1989-07-20
AU591621B2 (en) 1989-12-07
KR900012039A (ko) 1990-08-03
CN1011335B (zh) 1991-01-23
JP2637449B2 (ja) 1997-08-06

Similar Documents

Publication Publication Date Title
CN1035173A (zh) 用流化床燃烧固体燃料的方法
CN86102126A (zh) 还原型循环式流化床燃烧系统
CN87101856A (zh) 采用独立流体循环操作蒸汽发生器的方法和蒸汽发生器
EP0854324A3 (en) Natural draft pellet stove
CA2196994A1 (en) Combustion method
CA2446950A1 (en) Combined fluidized bed and pulverized coal combustion method
US5396849A (en) Combustion method producing low levels of pollutants and apparatus for same
CN1313766C (zh) 用蒸汽代替空气进行高压流化风的方法
CN200949812Y (zh) 环保型节能蒸汽锅炉
CN1279310C (zh) 喷动流化旋涡煤粉燃烧器
CN106838971A (zh) 一种生物质打捆燃料链条锅炉供风系统
CN206626602U (zh) 一种生物质打捆燃料链条锅炉供风系统
JPH05340509A (ja) 流動層燃焼におけるn2o,nox低減方法
FR2802287A1 (fr) Procede pour l'amelioration de la combustion dans un systeme a lit fluidise circulant et systeme correspondant
JPS5642004A (en) Fluidized layer type boiler
US4848251A (en) Method to enhance removal of sulfur compounds by slag
CN1178021C (zh) 一种循环流化床焚烧石油焦的方法及其设备
JP2802519B2 (ja) 流動層燃焼における窒素酸化物低減方法
CN2033470U (zh) 分级双床再循环沸腾燃烧锅炉
CN2325645Y (zh) 一种正转链条炉改造的循环流化床锅炉
SU1599618A1 (ru) Способ сжигани топлива
RU2103600C1 (ru) Аппарат для проведения процессов во взвешенном слое
Gulyurtlu et al. Fluidised bed combustion of corkwaste
CN2123684U (zh) 一种煤用锅炉的燃烧装置
RU2037098C1 (ru) Способ ступенчатого сжигания топливовоздушной смеси в пылеугольных котлах

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
PB01 Publication
SE01 Entry into force of request for substantive examination
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee