CN1011534B - 煤气旋风炉的气化燃烧装置 - Google Patents

煤气旋风炉的气化燃烧装置

Info

Publication number
CN1011534B
CN1011534B CN87107182A CN87107182A CN1011534B CN 1011534 B CN1011534 B CN 1011534B CN 87107182 A CN87107182 A CN 87107182A CN 87107182 A CN87107182 A CN 87107182A CN 1011534 B CN1011534 B CN 1011534B
Authority
CN
China
Prior art keywords
burner
gas
nozzle
generating chamber
whirlwind
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.)
Expired
Application number
CN87107182A
Other languages
English (en)
Other versions
CN87107182A (zh
Inventor
罗既
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.)
WUHAN POLYTECHNIC COLLEGE
ABB Stal AB
Original Assignee
WUHAN POLYTECHNIC COLLEGE
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 WUHAN POLYTECHNIC COLLEGE filed Critical WUHAN POLYTECHNIC COLLEGE
Publication of CN87107182A publication Critical patent/CN87107182A/zh
Publication of CN1011534B publication Critical patent/CN1011534B/zh
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0015—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type
    • F22B31/0023—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes in the bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/16—Fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures, e.g. by the arrangement of the combustion chamber and its auxiliary systems inside a pressure vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

本发明公开了一种煤气旋风炉的气化燃烧装置，装置的烧嘴由喷嘴壳和设有多股扭面螺旋导流片的喷嘴体等部件组成，该烧嘴为低压预混式，发生室的热脑煤气由煤气导管进入面二次风由垂直于煤气导管方向的连接管进入最后在预混区n处混合而构成新的流股喷出，此种二次预热加预混喷出的旋流火焰，顺着加热室顶拱切向进入炉膛，实现旋风燃烧达到强化燃烧并延长烧嘴寿命。

Description

本发明涉及到以低块率混合烟煤为主要燃料的锻件加热、铸锻件退火、通讯丝连续正火、有色金属和水玻璃熔炼以及陶瓷、耐火材料和炭素烧结等工业炉窑的气化燃烧装置。
从层状燃烧炉和简易煤气炉的发展趋势来看，简易煤气炉的灵活性和潜力方面具有明显优势。但是，近年来发展的速度不及从锅炉中移植来的用于锻造加热的机械加煤炉，如阶梯式，水平往复式，链条式炉排等炉。其原因是，简易煤气炉气化和燃烧装置历来存在两个关键问题：一是发生室内耗问题;二是喷射燃烧装置。前者在技术上已取得进展，本发明是针对后者。传统的喷口加喷管结构很不科学，严重影响了助燃剂与煤气的混合条件，并限制了混合气的喷射压力及煤气的循环速度，导致该类炉型的燃烧效率低。现有技术虽作了一定的改进，但不适宜内装，耐脏、耐高温、低压力、大流量的条件下持续稳定工作。上述原因，是当前简易煤气炉类难于推广而阻碍其发展的症结所在。关于这，在《锻压技术》1986年第二期“粉状煤直接气化燃烧技术”一文中介绍过。目前虽对煤气旋风炉气化燃烧装置的烧嘴做过一些改进，如“螺片式涡流烧嘴”和“低压涡流式（DW-1）型烧嘴”，但它们均为由耐热金属材料及相应的机械结构构成。其内装式一类的寿命低，喷射压力 不高。无助于二次空气的预热作用。它们的基本结构一般由喷嘴壳和设有多股扭面螺旋导流片的喷嘴体组成，喷嘴体按轴向套入喷嘴壳后用螺钉机械连接，同外壳构成整体。热脏煤气由设有多股扭面螺旋导流片的喷嘴体进入。二次风由喷嘴壳上的垂直贯通管进入。该机械装配式烧嘴在高温状态下不能持续工作，只能在900-920℃的条件下工作，其寿命为1-2个月，而且还必须采取一些措施，如停炉后还要继续开二次风，这样既费电，又将炉膛温度很快降低，对节能十分不利;否则，烧嘴使用几个班就烧坏。
本发明针对上述缺点采用非金属材料及内装组合结构。
本发明的特征在于采用低压预混式内装涡流烧嘴，烧嘴的喷嘴壳由烧嘴壳和连接管组成，喷嘴体由导流喷头和煤气导管组成，烧嘴各零部件由刚玉质、高铝质、锆质、碳化硅耐火材料烧结而成，烧嘴壳由上下或左右两半组成方形，导流喷头同煤气导管通过止口连接，连接管和烧嘴壳采用双级止口连接。
下面结合附图对本发明的工作过程作具体描述：
图1低压预混式内装涡流烧嘴
低压预混式涡流嘴装在煤气发生室与加热室之间的炉体内部，能在高温下持续工作。工作时，发生室的热脏煤气由煤气导管（3）的大端孔，进入导流喷头（2）的大小 端孔喷出至预混区h;经过换热器预热的二次风，通过分配器至连接管（4），再进入烧嘴内腔i，然后再进入导流喷头（2）的多流股螺片槽，其气流绕轴旋转运动进入混合区。此时，带有大量辉光体的约500-600℃的热脏煤气，同二次预热的约350-450℃的助燃空气，同时在预混区h搅拌混合，构成新的流股喷出。由二次风在炽热的烧嘴体传导、辐射和对流的三元传热作用下，使喷出的压力提高，煤气随二次风的吸附作用增强而流量增多，因此混合气的喷出速度达30米/秒以上，配合偏拱低炉膛，有利于提高气流的旋转动力。此种二次预热加预混喷出的旋流火焰，顺着加热室顶拱切线进入炉膛，实现旋风燃烧。在湍流燃烧的作用下，燃烧强化、反应率加快，使已燃气和未燃新鲜可燃气迅速混合，提高了燃烧速率，增强了对被加热件的冲刷能力，改变了传统的煤气热交换状态，延长了烧嘴的寿命。
本发明既有本生灯火焰的特点，而又具备一定的预混区和回流火道，能实现无焰燃烧和稳定燃烧的高温点火源。
本发明的低压预混式内装涡流烧嘴通过炉膛结构和过剩空气系数的控制，可构成无氧化加热气氛，实现少无氧化加热。用于锻件加热，在一般情况下可节能23-38%。
本发明的低压预混式内装涡流烧嘴，根据炉型结构类型和不同规格，能单独或组合使用，可对能量、火焰、温度进 行调控，不产生回火、脱火和焦油堵塞现象。
本发明对于改造现有的燃煤火焰反射炉，能达到节能、环保和改善劳动条件具有显著的综合效果。

Claims (3)

1、一种煤气旋风炉的气化燃烧装置，该装置的烧嘴由喷嘴壳和设有多股扭面螺旋导流片的喷嘴体组成，喷嘴体按轴向套入喷嘴壳，同外壳构成整体，其特征在于该烧嘴为低压预混式内装涡流烧嘴，烧嘴的喷嘴壳由烧嘴壳(1)和连接管(4)组成，喷嘴体由导流喷头(2)和煤气导管(3)组成，烧嘴壳(1)为上下或左右两半组成方形，导流喷头(2)同煤气导管(3)通过止口连接，连接管(4)和烧嘴壳(1)采用双级止口连接。
2、根据权利要求1所述的煤气旋风炉的气化燃烧装置，其特征在于烧嘴各零部件由刚玉质、高铝质、锆质、碳化硅耐火材料烧结而成。
3、根据权利要求1所述的煤气旋风炉的气化燃烧装置，其特征在于低压预混式内装涡流烧嘴装在煤气发生室与加热室之间的炉膛内部。
CN87107182A 1986-10-29 1987-10-24 煤气旋风炉的气化燃烧装置 Expired CN1011534B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604603A SE455127B (sv) 1986-10-29 1986-10-29 Kraftanleggning med forbrenning i fluidiserad bedd
SE8604603-4 1986-10-29

Publications (2)

Publication Number Publication Date
CN87107182A CN87107182A (zh) 1988-05-11
CN1011534B true CN1011534B (zh) 1991-02-06

Family

ID=20366103

Family Applications (1)

Application Number Title Priority Date Filing Date
CN87107182A Expired CN1011534B (zh) 1986-10-29 1987-10-24 煤气旋风炉的气化燃烧装置

Country Status (12)

Country Link
US (1) US4779574A (zh)
EP (1) EP0266637B1 (zh)
JP (1) JPS63123906A (zh)
CN (1) CN1011534B (zh)
AT (1) ATE64987T1 (zh)
AU (1) AU603611B2 (zh)
DE (1) DE3771169D1 (zh)
DK (1) DK566987A (zh)
ES (1) ES2024471B3 (zh)
FI (1) FI874750A (zh)
IN (1) IN171243B (zh)
SE (1) SE455127B (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE458955B (sv) * 1987-10-20 1989-05-22 Abb Stal Ab Pfbc-kraftanlaeggning
FI100206B (fi) * 1989-11-13 1997-10-15 Mitsubishi Heavy Ind Ltd Tukirakenne leijukerrospolttokattilaa varten
US5181481A (en) * 1991-03-25 1993-01-26 Foster Wheeler Energy Corporation Fluidized bed combustion system and method having multiple furnace sections
US5299532A (en) * 1992-11-13 1994-04-05 Foster Wheeler Energy Corporation Fluidized bed combustion system and method having multiple furnace and recycle sections
US5476375A (en) * 1993-07-12 1995-12-19 Institute Of Gas Technology Staged combustion in a porous-matrix surface combustor to promote ultra-low NOx Emissions
US5544624A (en) * 1993-07-12 1996-08-13 Institute Of Gas Technology Gas-fired, porous matrix, combustor-steam generator
US5375563A (en) * 1993-07-12 1994-12-27 Institute Of Gas Technology Gas-fired, porous matrix, surface combustor-fluid heater
US5442919A (en) * 1993-12-27 1995-08-22 Combustion Engineering, Inc. Reheater protection in a circulating fluidized bed steam generator
US5469698A (en) * 1994-08-25 1995-11-28 Foster Wheeler Usa Corporation Pressurized circulating fluidized bed reactor combined cycle power generation system
JPH08200601A (ja) * 1995-01-20 1996-08-06 Hitachi Ltd 流動層発電プラント及びその制御装置並びに制御方法
US5570645A (en) * 1995-02-06 1996-11-05 Foster Wheeler Energy Corporation Fluidized bed system and method of operating same utilizing an external heat exchanger
AU721741B2 (en) * 1995-12-08 2000-07-13 Megtec Systems Ab A method and a device for recovery of energy from media containing combustible substances even at low concentration
GB2461101A (en) * 2008-06-20 2009-12-23 2Oc Power generation system
US10429064B2 (en) * 2016-03-31 2019-10-01 General Electric Technology Gmbh System, method and apparatus for controlling the flow direction, flow rate and temperature of solids

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB784595A (en) * 1954-08-05 1957-10-09 Combustion Eng Improvements in vapour, e.g. steam generation
US3717700A (en) * 1970-08-25 1973-02-20 Us Interior Process and apparatus for burning sulfur-containing fuels
US3863606A (en) * 1973-07-25 1975-02-04 Us Environment Vapor generating system utilizing fluidized beds
US3893426A (en) * 1974-03-25 1975-07-08 Foster Wheeler Corp Heat exchanger utilizing adjoining fluidized beds
US4116005A (en) * 1977-06-06 1978-09-26 General Electric Company Combined cycle power plant with atmospheric fluidized bed combustor
GB2072524B (en) * 1980-03-18 1984-03-28 Babcock Hitachi Kk Fluidized bed combustor
US4476816A (en) * 1982-10-25 1984-10-16 Cannon Joseph N Staged cascade fluidized bed combustor
US4449483A (en) * 1983-01-07 1984-05-22 Electrodyne Research Corporation Unfired drying and sorting apparatus for preparation of solid fuel as a feedstock for a combustor
SE8500750L (sv) * 1985-02-18 1986-08-19 Asea Stal Ab Kraftanleggning for forbrenning av partikulert brensle i fluidiserad bedd
US4665864A (en) * 1986-07-14 1987-05-19 Foster Wheeler Energy Corporation Steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits

Also Published As

Publication number Publication date
FI874750A (fi) 1988-04-30
DK566987D0 (da) 1987-10-29
ES2024471B3 (es) 1992-03-01
DE3771169D1 (de) 1991-08-08
IN171243B (zh) 1992-08-22
AU603611B2 (en) 1990-11-22
CN87107182A (zh) 1988-05-11
EP0266637B1 (en) 1991-07-03
DK566987A (da) 1988-04-30
US4779574A (en) 1988-10-25
SE8604603L (sv) 1988-04-30
SE455127B (sv) 1988-06-20
SE8604603D0 (sv) 1986-10-29
EP0266637A1 (en) 1988-05-11
JPS63123906A (ja) 1988-05-27
AU8012087A (en) 1988-05-05
FI874750A0 (fi) 1987-10-28
ATE64987T1 (de) 1991-07-15

Similar Documents

Publication Publication Date Title
CN1011534B (zh) 煤气旋风炉的气化燃烧装置
CN202012913U (zh) 一种新型烟气自回流贫氧燃烧器
CN101334164B (zh) 一种工业锅炉的燃烧方法
CN101324334B (zh) 一种低NOx液态排渣双旋流煤粉燃烧器
CN1430016A (zh) 危险废弃物及医疗垃圾处理用的溶渣焚烧炉及工艺方法
CN204752780U (zh) 熔融还原炼铁装置
CN109912188A (zh) 一种燃烧式玻璃钢化加热装置及操作方法
CN212688113U (zh) 用于气基还原生产海绵铁的还原气加热炉
CN102563635B (zh) 煤粉火焰预热燃烧装置
CN201053820Y (zh) 高效坩埚炉
CN111424128A (zh) 一种用于气基还原生产海绵铁的还原气加热炉及加热工艺
CN208059287U (zh) 多功能立式煤粉热风炉
CN213713087U (zh) 一种含碳飞灰燃烧系统
CN2527867Y (zh) 一种煤粉锅炉无油直接点火燃烧器
CN1133036C (zh) 煤燃烧器
CN100398668C (zh) 一种加热高浓度一氧化碳等还原气体的工艺及其装置
CN87108288A (zh) 煤气旋风炉的气化燃烧装置
CN201177270Y (zh) 预热式燃烧室
CN201293314Y (zh) 低NOx液态排渣双旋流煤粉燃烧器
CN218523947U (zh) 一种新型烧结点火炉
CN112856408B (zh) 带煤气分级、预混燃烧的w型辐射管烧嘴
CN1126810A (zh) 煤粉气化燃烧装置
CN2580305Y (zh) 煤粉锅炉组合式燃烧器
CN2483614Y (zh) 无烟燃烧装置
CN2068645U (zh) 蓄热式自身预热燃烧器

Legal Events

Date Code Title Description
C06 Publication
SE01 Entry into force of request for substantive examination
PB01 Publication
C10 Entry into substantive examination
C13 Decision
GR02 Examined patent application
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee