WO2011038676A1 - 生物质气化燃烧锅炉 - Google Patents

生物质气化燃烧锅炉 Download PDF

Info

Publication number
WO2011038676A1
WO2011038676A1 PCT/CN2010/077432 CN2010077432W WO2011038676A1 WO 2011038676 A1 WO2011038676 A1 WO 2011038676A1 CN 2010077432 W CN2010077432 W CN 2010077432W WO 2011038676 A1 WO2011038676 A1 WO 2011038676A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
secondary air
plate
air outlet
combustion
Prior art date
Application number
PCT/CN2010/077432
Other languages
English (en)
French (fr)
Inventor
张建超
张瑜
Original Assignee
Zhang Jianchao
Zhang Yu
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
Priority claimed from CN 200910187815 external-priority patent/CN101666492B/zh
Priority claimed from CN2009202038205U external-priority patent/CN201539855U/zh
Application filed by Zhang Jianchao, Zhang Yu filed Critical Zhang Jianchao
Publication of WO2011038676A1 publication Critical patent/WO2011038676A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/10—Under-feed arrangements
    • F23K3/14—Under-feed arrangements feeding by screw
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste

Definitions

  • the invention relates to a boiler, in particular to a biomass gasification combustion boiler.
  • Biomass refers to various organisms formed by photosynthesis, including all animals and plants and microorganisms.
  • the so-called biomass energy is the form of energy that solar energy stores in the form of chemical energy in biomass, that is, the energy that uses biomass as a carrier. It is directly or indirectly derived from the photosynthesis of green plants and can be converted into conventional solid, liquid and gaseous fuels. It is inexhaustible and inexhaustible. It is a renewable energy source and the only one that can be regenerated. Carbon source.
  • Biomass has unparalleled advantages over other sources of energy, including:
  • biomass The sulfur content and nitrogen content of biomass are low, and the SOX and NOX generated during combustion are less.
  • carbon dioxide required for its growth is equivalent to the amount of carbon dioxide emitted by it. Emissions are close to zero, which can effectively reduce the greenhouse effect;
  • Biomass is the fourth largest energy source in the world, second only to coal, oil and natural gas. With the development of agroforestry, especially the promotion of charcoal forests, there will be more and more biomass resources.
  • fluidized bed boilers are an efficient, low-pollution clean combustion technology developed over the past decade. Because of its high combustion efficiency, wide adaptability of coal types, low concentration of harmful gases in flue gas, large range of load regulation, and comprehensive utilization of ash and slag, in today's increasingly severe energy shortage and environmental protection requirements, It has developed rapidly and has been commercialized and is undergoing large-scale development.
  • the fluidization process is used for fuel combustion, that is, fluidized combustion, and the furnace is called a fluidized bed.
  • Boiler Fluidization theory for combustion began in the 1920s and was mainly used in the petrochemical and metallurgical industries since the 1940s.
  • the fluidized bed boilers have significant advantages not found in ordinary boilers, including: The furnace has high thermal efficiency; stable operation and simple operation; wide fuel adaptability, strong adaptability to coal supply market fluctuations; low pollutant emission; high combustion intensity and small furnace cross-section.
  • the present invention is directed to combining biomass fuel with the principles of a fluidized bed boiler to disclose a biomass gasification combustion boiler suitable for biomass fuel combustion.
  • a biomass gasification combustion boiler comprising a furnace body, a blower, a duct, a feed device and a biomass burning device, characterized in that:
  • the air duct comprises: a primary air duct and a secondary air duct;
  • the biomass burning device comprises:
  • a primary windbox located at the bottom of the combustion device, having a central position in communication with the feeding device and connected to the primary air duct through a primary air inlet at a lower portion of the side wall;
  • the secondary air passage is a ring type air passage located at the top of the combustion device, and is connected to the secondary air duct through the secondary air inlet;
  • a combustion chamber a fluidized plate as a basin bottom, and a cloth plate as a basin-shaped structure;
  • the fluidization plate is an annular plate, and the air holes are uniformly distributed thereon, and the center hole of the fluidization plate is communicated with the feeding device;
  • the air distribution plate is provided with a primary air outlet and a secondary air outlet, which are respectively surrounded by a primary air box and a secondary air duct; wherein the secondary air outlet is located on the upper part of the air distribution, inclined in the same direction, and the inclined direction of each secondary air outlet Both are inclined to the side downwards along the direction of the secondary air inlet, and the primary air outlet includes a direct air outlet at a lower portion of the air distribution plate and a co-directional inclined air outlet at a central portion of the air distribution plate, the direct air outlet passing through the combustion chamber
  • the projection on the plane of the central axis is parallel to the central axis, and the oblique air vent conforms to the shape and distribution of the secondary tuyere.
  • the hole diameter of the air hole on the fluidization plate is 3_5 mm, and the adjacent hole pitch is 8-15 mm ;
  • the opening of the air inlet is 15_40 mm 2 , and the distance of the adjacent air outlet is 1. 5_4 cm;
  • the angle of the opening of the inclined air outlet and the secondary air outlet is 30_70 mm 2 , the distance of the adjacent air outlet is 1. 5_4 cm, and the inclination angle is 40-55 °.
  • the feeding device is buried in the ground, and includes a feeding hopper, a screw feeder and a smoke blocking return pipe;
  • the upper port of the feeding hopper is exposed to the ground, and the lower port is connected to the screw feeder;
  • One end of the screw feeder is connected to the output end of the motor reducer, and the other end is connected to the fluidization plate through a primary air box;
  • the first end of the smoke retarding return pipe is coupled to the air supply device, and the end is connected to the screw feeder and located between the lower port of the feed hopper and the central position of the primary wind box.
  • the feeding device of the present invention may also be of the following structure:
  • the feeding device includes a feeding hopper, and is connected at a lower port thereof to a combustion chamber of the boiler through a communication pipe disposed on a side wall of the boiler corresponding to a position of the combustion chamber;
  • a discharger is mounted at a neck position on the lower port of the feeding device, and a center shaft of the discharger is coupled to an output end of the motor reducer.
  • the communication pipe is disposed below the fire opening of the boiler and is horizontally close to the fire opening.
  • the discharger uniformly distributes four or more blades along the central axis.
  • the biomass gasification combustion boiler of the present invention uses the principle of fluidized combustion to use biomass fuel, without adding any chemical combustion improver, and generates a large amount of carbon monoxide, propionate and formazan through thermal energy reaction.
  • the combustible gas converts biomass fuel into high-quality combustible gas by preheating and retorting, and through the design of primary air, secondary air and tuyere, fully blends with air to strengthen combustion, completely smokeless, dust-free, and Polluted gas emissions.
  • the design of the feeding system further improved the overall design of the boiler, and the feeding was more scientific and environmentally friendly, which greatly reduced the labor intensity of the workers and improved the labor environment.
  • Figure 1 is a schematic view showing the structure of Embodiment 1;
  • Figure 2 is an enlarged plan view showing a top view of the fluidized plate of Figure 1;
  • Figure 3 is a schematic structural view of Embodiment 2;
  • Figure 4 is a side view of Figure 3;
  • Figure 5 is an enlarged schematic view of the motor reducer of Embodiment 2;
  • Figure 6 is a schematic cross-sectional view of the discharger described in Embodiment 2.
  • a biomass gasification combustion boiler having a boiler output of 300 kg/h, as shown in Fig. 1, comprising a furnace body, a blower, a duct, a feeding device and a biomass burning device, characterized in that:
  • the air duct comprises: a primary air duct 1 and a secondary air duct 7, and respectively installed a butterfly valve 3 and a butterfly valve 6;
  • the air blower 4 is connected to the primary air duct 1 and the secondary air duct 7 through the three-way 3;
  • the biomass burning device comprises:
  • a primary air box 16 located at the bottom of the combustion device, has a central position in communication with the feeding device, and is connected to the primary air duct 7 through a primary air inlet at a lower portion of the side wall;
  • the secondary air passage 13 is a ring type air passage located at the top of the combustion device, and is connected to the secondary air duct 1 through a secondary air inlet;
  • the fluidized plate 15 is a pelvic floor, and the air distribution plate 14 is a basin-shaped structure; the fluidizing plate 15 is an annular flat plate, and the air vent 151 is uniformly distributed thereon, and the air hole diameter is 4-4. 2mm, the adjacent hole pitch is 10 ⁇ ; the center hole 152 of the fluidized plate is in communication with the feeding device;
  • the air distribution plate 14 is provided with a primary air outlet 141a, 141b and a secondary air outlet 142, which are respectively surrounded by the primary air box 16 and the secondary air duct 13; wherein the secondary air outlet 142 is located at the upper part of the air distribution plate 14, tilting in the same direction
  • the inclination direction of each secondary air outlet 142 is inclined downward to the side along the air inlet direction of the secondary air, the inclination angle is 45-50°, and the air outlet size is 40 X (1-1. 5 ) mm 2 , adjacent
  • the tuyere distance is 2_2.
  • the primary tuyere includes a direct tuyere 141a located at a lower portion of the air distribution plate 14 and a co-directional inclined inclined air outlet 141b at a central portion of the air distribution plate 14, the straight tuyeres 141a passing through the central axis of the combustion chamber
  • the projection on the plane is parallel to the central axis, the tuyere size is 20 X (1-1. 5 ) mm 2 , and the adjacent tuyere distance is 2-2. 5 cm;
  • the oblique tuyere 141b is consistent with the shape and distribution of the secondary tuyere 142. 5 ⁇
  • the inclination angle is 45-50 °
  • the air outlet size is 40 X (1-1. 5) mm 2
  • the adjacent air outlet distance is 2-2. 5cm.
  • the feeding device is buried in the ground, and includes a feeding hopper 12, a screw feeder 9 and a smoke blocking return pipe 8; the upper port of the feeding hopper 12 is exposed to the ground, and the lower port is connected with the screw feeder 9;
  • the screw feeder 9 is connected at one end to the output end of the motor 10 reducer 11, and the other end is connected to the fluidization plate 15 through the primary air box 16;
  • the head end of the smoke retarding return pipe 8 is coupled to the outlet end of the blower 4, and is mounted with a ball valve 5, the end of which is connected to the screw feeder 9 and located at the center of the lower port of the feed hopper 12 and the primary bellows 16 between.
  • the biomass gasification combustion boiler solves the technical problems of gasification combustion and enhanced combustion, and achieves the colorless effect of exhausting smoke. After testing by relevant departments, all the indicators meet the design requirements, and the main indicators are as follows:
  • Boiler output 300kg / h ;
  • Soot emission concentration ⁇ 80mg/m 3 ;
  • the boiler can achieve speed regulation and automatic feeding by controlling the motor 10 of the screw feeder 9.
  • the feeding device in the present embodiment includes a feed hopper 12, and is connected at its lower port to the combustion chamber of the boiler through a communication pipe 17 provided on the side wall of the boiler corresponding to the position of the combustion chamber.
  • the communication pipe 17 is disposed at a position where the fire vent 18 in the boiler is lower and the level is close to the fire vent 18;
  • the neck position on the lower port of the feeding device is mounted with a discharger 19, the middle shaft of the discharger 19 is connected with the output end of the motor 10 reducer 11, and the discharger 19 is along the middle
  • the collar is circumferentially distributed with five blades 20.
  • the feeding device in the embodiment uses the gravity action of the biomass fuel itself as a free-falling motion, and falls into the fluidized plate 15 of the combustion chamber, and the feeding process is smoother and unobstructed.
  • the main indicators are as follows:
  • Boiler output 300 kg / h
  • Soot emission concentration ⁇ 80mg/ m 3

Description

说 明 书
生物质气化燃烧锅炉 技术领域
本发明涉及一种锅炉， 尤其涉及一种生物质气化燃烧锅炉。
背景技术
生物质是指通过光合作用而形成的各种有机体， 包括所有的动植物和微生物。 而所谓生物质能（biomass energy ) ， 就是太阳能以化学能形式贮存在生物质中 的能量形式， 即以生物质为载体的能量。 它直接或间接地来源于绿色植物的光 合作用， 可转化为常规的固态、 液态和气态燃料， 取之不尽、 用之不竭， 是一 种可再生能源， 同时也是唯一一种可再生的碳源。
生物质能具有一些其他能源所无可比拟的优势， 包括：
1) 可再生性
2) 低污染性， 零排放
生物质的硫含量、 氮含量低、 燃烧过程中生成的 SOX、 NOX较少； 生物质 作为燃料时， 由于它在生长时需要的二氧化碳相当于它排放的二氧化碳的量， 因而对大气的二氧化碳净排放量近似于零， 可有效地减轻温室效应；
3) 广泛分布性
4) 生物质燃料总量十分丰富。
生物质能是世界第四大能源,仅次于煤炭、 石油和天然气。 随着农林业的发 展,特别是炭薪林的推广，生物质资源还将越来越多。
因此， 目前生物质能技术的研究与开发已成为世界重大热门课题之一， 受 到世界各国政府与科学家的关注。
同时， 流化床锅炉是近十几年发展起来的一项高效、 低污染清洁燃烧技术。 因其具有燃烧效率高、 煤种适应性广、 烟气中有害气体排放浓度低、 负荷调节 范围大、 灰渣可综合利用等优点， 在当今日益严峻的能源紧缺和环境保护要求 下， 在国内外得到了迅速的发展， 并已商品化， 正在向大型化发展。
其独特的燃烧机理 （固体粒子经与气体或液体接触而转变为类似流体状态 的过程， 称为流化过程。 流化过程用于燃料燃烧， 即为流化燃烧， 其炉子称为 流化床锅炉。 流化理论用于燃烧始于上世纪 20年代， 40年代以后主要用于石油 化工和冶金工业） 使流化床锅炉具有普通锅炉所不具备的显著优势， 包括： 锅 炉热效率较高； 运行稳定， 操作简单； 燃料适应性广， 对煤炭供应市场波动有 较强的适应性； 污染物排放量低； 燃烧强度高， 炉膛截面积小等。
现有的生物质燃料锅炉， 由于采用传统锅炉的燃烧方式， 不可避免存在着 燃烧稳定性差， 锅炉热效率低， 烟尘排放浓度大等问题。
发明内容
鉴于现有技术所存在的不足， 本发明旨在将生物质燃料与流化床锅炉的原 理相结合， 公开一种适用于生物质燃料燃烧的生物质气化燃烧锅炉。
本发明的技术解决方案是这样实现的：
一种生物质气化燃烧锅炉， 包括炉体、 送风装置、 风管、 进料装置和生物 质燃烧装置， 其特征在于：
所述风管包括： 一次风管和二次风管；
所述的生物质燃烧装置包括：
一次风箱， 位于所述燃烧装置的底部， 其中心位置与进料装置相连通， 并 在侧壁下部通过一次风入口与一次风管相连；
二次风道， 是位于所述燃烧装置顶部的环型风道， 通过二次风入口与二次 风管相切连接；
燃烧室， 以流化板为盆底， 以布风板为盆围的盆钵型结构；
所述流化板为环形平板， 其上均布风孔， 流化板的中心孔与进料装置 相通；
布风板， 其上开设有一次风口和二次风口， 分别为一次风箱和二次风 道所围绕； 其中， 二次风口位于布风板上部， 同向倾斜， 每条二次风口的 倾斜方向均为顺着二次风进风方向向侧下方倾斜， 一次风口包括位于布风 板下部的直风口和位于布风板中部的同向倾斜的斜风口， 所述直风口在过 所述燃烧室的中轴线的平面上的投影与中轴线平行， 所述斜风口与二次风 口的形状及分布相一致。
进一步的， 所述流化板上的风孔孔径 3_5mm， 相邻孔距为 8_15mm;
所述直风口的开孔尺寸为 15_40mm2，相邻风口距离 1. 5_4cm;
所述斜风口和二次风口的开孔尺寸为 30_70mm2，相邻风口距离 1. 5_4cm，倾 斜角度为 40-55 ° 。
更进一步的， 所述的进料装置埋于地下， 包括进料斗、 螺旋进料器和阻烟 回流管； 所述进料斗上端口露出地面， 下端口与螺旋进料器连通；
所述的螺旋进料器一端与电机减速机的输出端相连接， 另一端穿过一次风 箱与所述流化板相连通；
所述阻烟回流管首端联接送风装置， 末端接至所述螺旋进料器并位于所述 进料斗下端口与所述一次风箱的中心位置之间。
本发明的进料装置还可以是下述的结构：
所述进料装置包括进料斗， 在其下端口处通过设置于锅炉侧壁上对应于燃 烧室位置的连通管连接锅炉的燃烧室内；
所述进料装置的下端口上的颈部位置安装有出料器， 所述出料器的中轴与 电机减速机的输出端相连接。
更优化的， 所述连通管设置于锅炉内通火口靠下并且水平高度靠近通火口 位置。
进一步的， 所述的出料器沿中轴环周均布四个以上的叶片。
与现有技术相比， 本发明所述的生物质气化燃烧锅炉将生物质燃料， 采用 流化燃烧的原理， 不必添加任何化学助燃剂， 通过热能反应， 产生大量一氧化 碳、 丙垸、 甲垸等可燃气体， 通过预热、 干馏将生物质燃料转化为优质可燃气 体， 并通过一次风、 二次风及风口的设计， 与空气的充分混合强化燃烧， 完全 做到无烟、 无尘、 无公害气体排放。 而进料系统的设计， 则进一步完善了锅炉 的整体设计， 送料更科学， 环境友好， 大大降低了工人的劳动强度， 改善了劳 动环境。
附图说明
图 1是实施例 1的结构示意图；
图 2是图 1中的流化板的俯视图的放大图；
图 3是实施例 2的结构示意图；
图 4是图 3的侧视图；
图 5是实施例 2中的电机减速机的放大示意图；
图 6是实施例 2中所述出料器的截面示意图。
具体实施方式
实施例 1
一种生物质气化燃烧锅炉，锅炉出力为 300kg/h，如图 1所示，它包括炉体、 鼓风机、 风管、 进料装置和生物质燃烧装置， 其特征在于： 所述风管包括： 一次风管 1和二次风管 7， 并分别安装蝶阀 3和蝶阀 6; 鼓 风机 4通过三通 3分别连接一次风管 1和二次风管 7;
所述的生物质燃烧装置包括：
一次风箱 16， 位于所述燃烧装置的底部， 其中心位置与进料装置相连通， 并在侧壁下部通过一次风入口与一次风管 7相连；
二次风道 13， 是位于所述燃烧装置顶部的环型风道， 通过二次风入口与二 次风管 1相切连接；
燃烧室， 以流化板 15为盆底， 以布风板 14为盆围的盆钵型结构； 所述流化板 15为环形平板， 其上均布风孔 151， 风孔孔径 4-4. 2mm， 相邻 孔距为 10匪； 流化板的中心孔 152与进料装置相通；
布风板 14， 其上开设有一次风口 141a、 141b和二次风口 142， 分别为一次 风箱 16和二次风道 13所围绕； 其中， 二次风口 142位于布风板 14上部， 同向 倾斜， 每条二次风口 142 的倾斜方向均为顺着二次风进风方向向侧下方倾斜， 倾斜角度为 45-50° ， 风口尺寸为 40 X ( 1-1. 5 ) mm2, 相邻风口距离 2_2. 5cm; 一次风口包括位于布风板 14下部的直风口 141a和位于布风板 14中部的同向倾 斜的斜风口 141b， 所述直风口 141a在过所述燃烧室的中轴线的平面上的投影与 中轴线平行， 风口尺寸为 20 X ( 1-1. 5 ) mm2，相邻风口距离 2-2. 5cm; 所述斜风 口 141b与二次风口 142的形状及分布相一致， 倾斜角度为 45-50° ， 风口尺寸 为 40 X ( 1-1. 5 ) mm2, 相邻风口距离 2-2. 5cm。
所述进料装置埋于地下， 包括进料斗 12、 螺旋进料器 9和阻烟回流管 8; 所述进料斗 12上端口露出地面， 下端口与螺旋进料器 9连通；
所述的螺旋进料器 9一端与电机 10减速机 11的输出端相连接， 另一端穿 过一次风箱 16与所述流化板 15相连通；
所述阻烟回流管 8首端联接鼓风机 4的出口端， 并安装球阀 5， 末端接至所 述螺旋进料器 9并位于所述进料斗 12下端口与所述一次风箱 16的中心位置之 间。
所述生物质气化燃烧锅炉解决了气化燃烧稳定性， 以及强化燃烧等技术问 题， 达到了排烟无色的效果， 经有关部门测试， 各项指标均达到设计要求， 其 主要指标如下：
锅炉出力： 300kg/h;
锅炉热效率： 81%; 过剩空气系数： 1. 7;
排烟温度： 230 °C ;
烟尘排放浓度： <80mg/m3 ;
烟气黑度 （林格曼）： < I级；
S02排放浓度： <80mg/m3；
该锅炉通过控制螺旋进料器 9的电机 10， 可实现调速和自动给料。
实施例 2
与实施例 1所不同的是， 本实施例中所述进料装置包括进料斗 12， 在其下 端口处通过设置于锅炉侧壁上对应于燃烧室位置的连通管 17连接锅炉的燃烧室 内； 所述连通管 17设置于锅炉内通火口 18靠下并且水平高度靠近通火口 18的 位置；
所述进料装置的下端口上的颈部位置安装有出料器 19， 所述出料器 19的中 轴与电机 10减速机 11的输出端相连接， 所述的出料器 19沿中轴环周均布五个叶 片 20。
与实施例 1相比， 本实施例中的进料装置利用生物质燃料自身的重力作用作 自由落体运动， 落入所述燃烧室的流化板 15上， 进料过程更为流畅无阻碍， 无 需阻烟装置而不会返烟， 并且维修方便， 尤其是具有更好燃烧效果： 其各项主 要指标如下：
锅炉出力： 300 kg/h
锅炉热效率： 81%
过剩空气系数： 1. 7
排烟温度： 220 °C
烟尘排放浓度： <80mg/ m3
烟气黑度 （林格曼）： < 1级
S02排放浓度： <80 mg/ m3 以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不局 限于此， 任何熟悉本技术领域的技术人员在本发明披露的技术范围内， 根据本 发明的技术方案及其发明构思加以等同替换或改变， 都应涵盖在本发明的保护 范围之内。

Claims

权 利 要 求 书
1、 一种生物质气化燃烧锅炉， 包括炉体、 送风装置、 风管、 进料装置和生 物质燃烧装置， 其特征在于：
所述风管包括： 一次风管和二次风管；
所述的生物质燃烧装置包括：
一次风箱， 位于所述燃烧装置的底部， 并在侧壁下部通过一次风入口与一 次风管相连；
二次风道， 是位于所述燃烧装置顶部的环型风道， 通过二次风入口与二次 风管相切连接；
燃烧室， 以流化板为盆底， 以布风板为盆围的盆钵型结构；
所述流化板为环形平板， 其上均布风孔， 流化板的中心孔与进料装置 相通；
布风板， 其上开设有一次风口和二次风口， 分别为一次风箱和二次风 道所围绕； 其中， 二次风口位于布风板上部， 同向倾斜， 每条二次风口的 倾斜方向均为顺着二次风进风方向向侧下方倾斜， 一次风口包括位于布风 板下部的直风口和位于布风板中部的同向倾斜的斜风口， 所述直风口在过 所述燃烧室的中轴线的平面上的投影与中轴线平行， 所述斜风口与二次风 口的形状及分布相一致。
2、 根据权利要求 1所述的生物质气化燃烧锅炉， 其特征在于：
所述流化板上的风孔孔径 3_5mm， 相邻孔距为 8_15mm;
所述直风口的开孔尺寸为 15_40mm2，相邻风口距离 1. 5_4cm;
所述斜风口和二次风口的开孔尺寸为 30_70mm2，相邻风口距离 1. 5_4cm，倾 斜角度为 40-55 ° 。
3、 根据权利要求 1或 2所述的生物质气化燃烧锅炉， 其特征在于： 所述的进料装置埋于地下， 包括进料斗、 螺旋进料器和阻烟回流管； 所述进料斗上端口露出地面， 下端口与螺旋进料器连通；
所述的螺旋进料器一端与电机减速机的输出端相连接， 另一端穿过一次风 箱与所述流化板相连通； 所述阻烟回流管首端联接送风装置， 末端接至所述螺旋进料器并位于所述 进料斗下端口与所述一次风箱的中心位置之间。
4、 根据权利要求 1或 2所述的生物质气化燃烧锅炉， 其特征在于： 所述进料装置包括进料斗， 在其下端口处通过设置于锅炉侧壁上对应于燃 烧室位置的连通管连接锅炉的燃烧室内；
所述进料装置的下端口上的颈部位置安装有出料器， 所述出料器的中轴与 电机减速机的输出端相连接。
5、 根据权利要求 4所述的生物质气化燃烧锅炉， 其特征在于：
所述连通管设置于锅炉内通火口靠下并且水平高度靠近通火口的位置。
6、 根据权利要求 4所述的生物质气化燃烧锅炉， 其特征在于：
所述的出料器沿中轴环周均布四个以上的叶片。
PCT/CN2010/077432 2009-09-30 2010-09-29 生物质气化燃烧锅炉 WO2011038676A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 200910187815 CN101666492B (zh) 2009-09-30 2009-09-30 生物质气化燃烧锅炉
CN200910187815.4 2009-09-30
CN200920203820.5 2009-09-30
CN2009202038205U CN201539855U (zh) 2009-09-30 2009-09-30 生物质气化燃烧锅炉

Publications (1)

Publication Number Publication Date
WO2011038676A1 true WO2011038676A1 (zh) 2011-04-07

Family

ID=43825576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/077432 WO2011038676A1 (zh) 2009-09-30 2010-09-29 生物质气化燃烧锅炉

Country Status (1)

Country Link
WO (1) WO2011038676A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013142945A1 (en) * 2012-03-29 2013-10-03 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Supplemental burner for conversion of biomass and related solid fuel
PL424562A1 (pl) * 2018-02-11 2019-08-12 Łukasz Mocek Palnik retortowy o regulowanej mocy

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001304519A (ja) * 2000-04-24 2001-10-31 Plantec Inc 産業廃棄物焼却用竪型ごみ焼却炉
US20020069798A1 (en) * 2000-09-14 2002-06-13 Aguadas Ellis Charles W. Method and apparatus for generating and utilizing combustible gas
US20020174812A1 (en) * 2001-03-27 2002-11-28 Fuji Electric Co., Ltd. Method and apparatus for gasifying solid biomass fuel
CN2797880Y (zh) * 2005-06-03 2006-07-19 大连七六○研究所六○○工厂 一种生物质能颗粒气化燃烧锅炉
CN101514812A (zh) * 2009-03-23 2009-08-26 孔繁利 一种生物质燃烧器
CN201396744Y (zh) * 2009-04-21 2010-02-03 吴诗植 立式生物质颗粒蒸汽锅炉
CN101666492A (zh) * 2009-09-30 2010-03-10 张建超 生物质气化燃烧锅炉
CN201539855U (zh) * 2009-09-30 2010-08-04 张建超 生物质气化燃烧锅炉

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001304519A (ja) * 2000-04-24 2001-10-31 Plantec Inc 産業廃棄物焼却用竪型ごみ焼却炉
US20020069798A1 (en) * 2000-09-14 2002-06-13 Aguadas Ellis Charles W. Method and apparatus for generating and utilizing combustible gas
US20020174812A1 (en) * 2001-03-27 2002-11-28 Fuji Electric Co., Ltd. Method and apparatus for gasifying solid biomass fuel
CN2797880Y (zh) * 2005-06-03 2006-07-19 大连七六○研究所六○○工厂 一种生物质能颗粒气化燃烧锅炉
CN101514812A (zh) * 2009-03-23 2009-08-26 孔繁利 一种生物质燃烧器
CN201396744Y (zh) * 2009-04-21 2010-02-03 吴诗植 立式生物质颗粒蒸汽锅炉
CN101666492A (zh) * 2009-09-30 2010-03-10 张建超 生物质气化燃烧锅炉
CN201539855U (zh) * 2009-09-30 2010-08-04 张建超 生物质气化燃烧锅炉

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013142945A1 (en) * 2012-03-29 2013-10-03 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Supplemental burner for conversion of biomass and related solid fuel
PL424562A1 (pl) * 2018-02-11 2019-08-12 Łukasz Mocek Palnik retortowy o regulowanej mocy

Similar Documents

Publication Publication Date Title
CN101865451B (zh) 生物质高温烟气气化联合燃煤锅炉及其低污染燃烧方法
WO2013107083A1 (zh) 一种带有水平旋风分离器的卧式循环流化床锅炉
CN101666492B (zh) 生物质气化燃烧锅炉
CN201539855U (zh) 生物质气化燃烧锅炉
CN102252320A (zh) 生物质低氮直燃锅炉
CN205424878U (zh) 一种生物质蒸汽锅炉
WO2014067405A1 (zh) 降低生物质循环流化床锅炉氮氧化物排放的方法
CN105698163A (zh) 一种固体燃料循环流化床富氧燃烧装置及方法
CN202109471U (zh) 生物质低氮直燃锅炉
WO2017161633A1 (zh) 旋风燃烧装置、燃烧设备和燃烧方法
CN201697100U (zh) 生物质高温烟气气化联合燃煤锅炉
CN109631044A (zh) 一种循环流化床垃圾焚烧锅炉及其焚烧方法
CN107084387B (zh) 一种烟气回燃的多流程低NOx卧式循环流化床锅炉
CN101280920B (zh) 流化-悬浮组合燃烧锅炉
CN202484975U (zh) 稻壳与煤混合燃烧的链条锅炉
WO2011038676A1 (zh) 生物质气化燃烧锅炉
CN110486717A (zh) 一种掺烧废气废液的cfb锅炉系统
CN100441952C (zh) 用于城市生活垃圾高效洁净燃烧的复合循环流化床系统
CN1312430C (zh) 一种生物质与煤粉复合燃烧及生物质再燃脱硝的燃烧装置
CN104990072A (zh) 一种高效低NOx排放的流化床锅炉
WO2022205778A1 (zh) 一种基于局部气化技术的生物质低氮燃烧锅炉
CN204756912U (zh) 一种高效低NOx排放的流化床锅炉
CN115200024A (zh) 一种低氮富氧高效洁净的垃圾焚烧系统及方法
CN2804615Y (zh) 一种生物质与煤粉复合燃烧及生物质再燃脱硝的燃烧装置
CN209655336U (zh) 一种生物颗粒与燃煤耦合发电系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10819905

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10819905

Country of ref document: EP

Kind code of ref document: A1