WO2011131039A1 - 一种风冷旋转炉条 - Google Patents

一种风冷旋转炉条 Download PDF

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Publication number
WO2011131039A1
WO2011131039A1 PCT/CN2011/000724 CN2011000724W WO2011131039A1 WO 2011131039 A1 WO2011131039 A1 WO 2011131039A1 CN 2011000724 W CN2011000724 W CN 2011000724W WO 2011131039 A1 WO2011131039 A1 WO 2011131039A1
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WO
WIPO (PCT)
Prior art keywords
furnace
shell
grate
air
directional
Prior art date
Application number
PCT/CN2011/000724
Other languages
English (en)
French (fr)
Inventor
李仕清
Original Assignee
Li Shiqing
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 Li Shiqing filed Critical Li Shiqing
Publication of WO2011131039A1 publication Critical patent/WO2011131039A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/02—End fittings on bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H9/00—Revolving-grates; Rocking or shaking grates
    • F23H9/02—Revolving cylindrical grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire

Definitions

  • the utility model relates to a directional combustion-supporting air-cooled rotary grate, which is mainly used in a boiler and a stove. Background technique
  • grate technology is used in boiler equipment, and fixed grate is commonly used in civil small boilers.
  • Some rotary grate is actually a rotary grate.
  • the furnace bar is too high.
  • the grate used in the boiler has a fan to help the fuel is relatively thin, resulting in a low temperature, which is not conducive to the full combustion of the fuel, nor can it achieve a real sense of secondary combustion, which is a waste of environmental pollution resources.
  • Utility model content Utility model content
  • the present invention has been made in view of the above problems, and aims to provide a newly invented directional combustion-supporting air-cooled rotary grate, which has sufficient fuel combustion, long life of the grate and is not easily deformed, and is particularly suitable for vertical use. Furnace, vertical furnace temperature is higher and fuel is easy to burn.
  • the present invention adopts the following technical solutions.
  • a directional combustion-supporting air-cooled rotary grate comprising an inner hollow grate shell driven by a driving device and an oriented concave plate located inside the grate shell, the grate shell having teeth or grooves, and teeth or grooves
  • the hole communicates with the grate plenum, and the outer end of the hole opens to the furnace to discharge air to the furnace
  • the directional concave plate is a cylindrical member extending along the axial direction of the grate shell and has only open to the furnace An opening, the directional concave plate being supported independently of the rotation of the grate shell to be fixed when the slat shell is rotated, the directional concave plate having an end inlet for receiving air from a fan, and The received air is directed through the opening to the aperture to guide the furnace.
  • the directional concave plate is supported by means of a central axis,
  • the central shaft is hollow and has a passage in communication with the oriented recess, one end of the central shaft being coupled to the air outlet of the fan to introduce air from the blower into the oriented recess.
  • a sleeve or a bearing fits between the grate shell and the central shaft.
  • a directional combustion-supporting air-cooled rotary grate comprising an inner hollow grate shell driven by a driving device and an oriented concave plate disposed around an outer circumference of the grate shell, the grate shell having teeth or grooves, teeth or grooves
  • the hole has a hole communicating with the furnace plenum, and the outer end of the hole leads to the furnace to discharge the air to the furnace
  • the directional concave plate is a cylindrical member extending along the axial direction of the slat shell and has only the furnace facing thereon An open opening, the oriented concave plate being supported independently of the rotation of the grate shell to fix it when the grate shell is rotated, the grate shell having an end inlet for receiving air from a fan And the oriented concave plate measured outside the grate shell directs the air to the furnace.
  • the directional concave plate is supported by means of a central shaft.
  • a sleeve or a bearing fits between the grate shell and the central shaft.
  • a vertical hearth is provided with a rotating grate as described above.
  • a periphery of the furnace is formed with a furnace plenum, and a side wall of the furnace plenum facing the inside of the furnace is formed with a hole leading to the furnace, and the furnace plenum receives air also from the fan. , thereby introducing air into the furnace.
  • a return chamber below the rotating grate shell, and a return hole is formed in the return chamber.
  • At least one side of the furnace has a slag discharge hole.
  • the utility model also discloses the following contents.
  • a directional combustion-supporting air-cooled rotary grate comprising a grate shell, an orientation plate, a middle shaft and a fan, wherein the grate shell has teeth or grooves, and the teeth or slots have holes for communicating with the grate shell wind chamber
  • the furnace shell has a shaft at one end, and the inner side of the shaft is adjacent to the furnace strip.
  • the tubular-shaped holes are respectively communicated with the furnace shell wind chamber and the furnace blast chamber, and the outer side is fixed with a sprocket or a gear, a pulley and the like to be connected with the motor.
  • the other end of the grate shell is coupled to the hollow central shaft by a bushing or bearing.
  • One end of the central shaft is passed through the sleeve or the inner diameter of the bearing and the grate shell
  • the part close to the transmission is coupled, and the outer end of the central shaft is coupled to a fan outside the furnace.
  • the inner side has a hole connected to the furnace blast chamber through a pipe; the refractory material in the inner side of the furnace ventilator has a hole communicating with the furnace ventilating chamber, and the bottom of the furnace has a back venting chamber.
  • the inner side of the two ends of the grate shell is coupled to the central shaft with a bushing or a bearing.
  • the outside of the grate has a sealing cover.
  • the outer end of the grate shell near the transmission has a coupling shell communicating with the furnace plenum chamber and the grate housing, and two sealing covers at both ends.
  • the orientation plate is fixed to the central shaft.
  • the orientation plate is a slotted opening facing the furnace
  • Figure 1 is a first embodiment of the present invention.
  • Fig. 2 is a schematic enlarged cross-sectional view taken along line A - A of Fig. 1. detailed description
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the directional combustion air-cooled rotary grate of the first embodiment of the present invention includes a grate shell 19 , a motor 12 , a fan 13 , a transmission 11 , and a fan pump 14 , which are rotated under the furnace 1 .
  • the grate shell 19 has a tooth 5 on the grate shell 19, and the tooth 5 has a hole communicating with the air chamber 2, and the shaft end of the grate shell 19 is coupled to the motor 12 via the transmission device 11, and the shaft end and the casing are sleeved or
  • the bearing 9 is connected, and the inside has a sealing cover
  • the small air chamber of 10 has a pipe communicating with the air chamber 2 of the furnace 1.
  • Fig. 2 is a schematic enlarged cross-sectional view taken along line A - A of Fig. 1.
  • the orienting concave plate 8 is, for example, a generally cylindrical member having an opening 81 facing the furnace.
  • the directional concave plate 8 is optionally positioned inside the blaster shell 19 and is fixed to the central shaft 18.
  • the directional concave plate 8 is supported independently of the rotation of the grate shell so that it does not rotate when the grate shell rotates, so that the directional W plate will always receive regardless of the angle at which the grate shell 19 is turned.
  • the air from the fan 14 is directed upward.
  • the opening of the directional concave plate 8 always faces the direction of the furnace, the combustion of the fuel in the furnace is assisted, and the same effect on the cooling of the blast furnace shell 19 extends the service life to prevent deformation of the slab shell.
  • the motor 12 rotates through the transmission device 11 to rotate the grate shell 19, and the sleeve or the bearing 17 between the grate shell 19 and the center shaft 18, so that the center shaft 18 and the directional concave plate 8 can be fixed and not rotated, in the fan 13, the pump 14
  • the air chamber 2 of the furnace 1 and the air chamber 6 of the grate shell 19 are filled with a certain pressure of air and blown into the furnace 1 through holes or slots to enhance the combustion effect, and the ash is rotated by the grate shell 19 It is feasible to increase the efficiency and make the boiler three-dimensional combustion.
  • the high furnace temperature in the three-dimensional combustion furnace can effectively decompose the non-burning toxic gas such as dioxins, so that waste incineration can be realized into pollution-free discharge.
  • the directional concave plate of the present invention may also be externally disposed around the outer circumference of the grate shell; the transmission device may also be driven by a gear or a pulley.
  • the fan 13 and the pump 14 can also be routed to the plenum of the furnace 1 by dedicated piping.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Incineration Of Waste (AREA)

Description

一种风冷旋转炉条
技术领域
本实用新型涉及一种定向助燃风冷式旋转炉条， 该定向助燃 风冷式旋转炉条主要用于锅炉、 炉具中。 背景技术
目前锅炉设备中均采用炉排技术， 而民用小型锅炉所普遍釆 用的是固定炉条， 有的旋转炉条其实是旋转炉排， 虽有一种旋转 炉条然而因炉温过高造成炉条变形损坏， 使用不便； 锅炉中所使 用炉排有风机助燃燃料较薄造成温度偏低不利于燃料充分燃烧， 也无法实现真正意义上的二次燃烧易造成环境污染资源浪费。 实用新型内容
本实用新型鉴于上述的问题而提出的， 以提供一种新发明的 定向助燃风冷式旋转炉条为目的， 该种炉条使燃料燃烧充分， 炉 条寿命长不易变形， 尤其适用于立式炉膛， 立式炉膛炉温较高易 于燃料充分燃烧。
为了达到上述的目的， 本实用新型采用下述技术方案。
一种定向助燃风冷式旋转炉条， 包括能由驱动装置带动的、 内部中空的炉条壳以及位于炉条壳内部的定向凹板， 炉条壳上有 齿或槽， 齿或槽中有孔与炉条风室相通， 孔的外端通向炉膛， 以 将空气排至炉膛， 所述定向凹板为沿炉条壳的轴向延伸的筒形件 且其上仅具有朝向炉膛敞开的开口， 所述定向凹板独立于所述炉 条壳的旋转被支撑从而当所述炉条壳旋转时其固定不转， 所述定 向凹板具有接收来自一风机的空气的端部入口， 且将接收的空气 经所述开口导向所述孔进而导向炉膛。
根据一个可行的实施例，所述定向凹板借助于中轴实现支撑， 所述中轴中空且具有与定向凹部连通的通道， 所述中轴的一端与 所述风机的空气出口相连， 从而将来自风机的空气引入所述定向 凹板中。
根据一个可行的实施例，炉条壳与中轴间有轴套或轴承配合。 一种定向助燃风冷式旋转炉条， 包括能由驱动装置带动的、 内部中空的炉条壳以及围绕炉条壳的外周设置的定向凹板， 炉条 壳上有齿或槽， 齿或槽中有孔与炉条风室相通， 孔的外端通向炉 膛， 以将空气排至炉膛， 所述定向凹板为沿炉条壳的轴向延伸的 筒形件且其上仅具有朝向炉膛敞开的开口， 所述定向凹板独立于 所述炉条壳的旋转被支撑从而当所述炉条壳旋转时其固定不转， 所述炉条壳具有接收来自一风机的空气的端部入口， 且所述炉条 壳外测的定向凹板将空气导向炉膛。
根据一个可行的实施例 ,所述定向凹板借助于中轴实现支撑。 根据一个可行的实施例，炉条壳与中轴间有轴套或轴承配合。 一种立式炉膛， 其设置有如上所述的旋转炉条。
根据一个可行的实施例， 所述炉膛的周边形成有炉膛风室， 所述炉膛风室的面向炉膛内部的侧壁上形成有通向炉膛的孔， 所 述炉膛风室接收同样来自风机的空气， 从而将空气引入炉膛中。
根据一个可行的实施例， 旋转炉条壳的下方有回烟室， 回烟 室上有回烟孔。
根据一个可行的实施例， 炉膛的至少一侧有排渣孔。
本实用新型还公开了以下内容。
一种定向助燃风冷式旋转炉条， 包括炉条壳， 定向板， 中轴、 风机， 其特征在于炉条壳上有齿或槽， 齿或槽上有孔与炉条壳风 室相通， 炉条壳一端有轴， 轴的内侧靠近炉条的地方是管形有孔 分别与炉条壳风室和炉膛风室相通， 外侧固定一链轮或齿轮、 带 轮等传动装置与电机联接， 炉条壳的另一端通过轴套或轴承与中 空的中轴联结。 中轴内置的一端通过轴套或轴承与炉条壳的内径 靠近传动装置的部分联接， 中轴的外端与炉膛外的风机联结。 内 侧有孔经管道与炉膛风室联接； 炉膛风室内侧耐火材料间有孔与 炉膛风室相通， 炉膛底部有回烟室。
优选地，炉条壳的两端内侧与中轴联接的地方有轴套或轴承。 优选地， 炉条的外侧有密封盖。
优选地， 靠近传动装置的炉条壳外端有与炉膛风室和炉条壳 风室 相通的联接壳， 两端有两密封盖。
优选地， 定向板与中轴固定在一起。
优选地， 定向板是槽状开口朝向炉膛的
优选地， 炉膛一侧有通明观察窗。
优选地， 观察窗内侧有隔尘网。 附图说明
本实用新型的技术方案和优点将通过结合附图进行详细的说 明， 在该附图中：
图 1是本实用新型的第一实施方式。
图 2示出了沿图 1中 A - A线获得的放大截面示意图。 具体实施方式
下面将结合附图详细地说明本实用新型的定向助燃风冷式旋 转炉条的优选实施方式， 在实施方式中主要以具有风室的旋转炉 条为例进行说明：
实施方式 1:
如图 1所示， 本实用新型的第一实施方式的定向助燃风冷式 旋转炉条包括炉条壳 19、 电机 12、 风机 13、 传动装置 11、 风机 泵 14， 在炉膛 1的下方是旋转炉条壳 19， 炉条壳 19上有齿 5， 齿 5上有孔与风室 2相通， 炉条壳 19的轴端经传动装置 11与电 机 12联接， 轴端与壳体经轴套或轴承 9联接， 内侧有一带密封盖 10的小风室并有管道与炉膛 1的风室 2相通， 炉条壳 19的另一 端内径两端与中轴 18通过两轴套或轴承联接， 外段有密封盖 16、 中轴 18是管状在外侧有孔经管道 15; 与炉膛风室 2相通， 外端 与电机 13、 风机 14联接， 中轴 18在炉条壳 19的内部有与中轴 固定在一起的定向凹板 8， 开口朝向炉膛， 炉膛内侧有耐火材料 20， 炉膛外壳一侧有透明观察窗 3内置隔尘网 4。 图 2示出了沿 图 1中 A - A线获得的放大截面示意图。
如图 2所示， 定向凹板 8例如为大体圆筒形部件， 其开有朝 向炉膛的开口 81。 所述定向凹板 8可选地定位于炉条壳 19的内 部， 并且固定于中轴 18上。 所述定向凹板 8独立于所述炉条壳的 旋转被支撑从而当所述炉条壳旋转时其固定不转， 这样， 无论炉 条壳 19转至何种角度， 定向 W板始终将接收自所述风机 14的空 气向上导向。
据上述结构， 由于定向凹板 8的开口始终朝向炉膛方向， 故 对炉膛中的燃料燃烧起助燃作用，同对对炉条壳 19起到降温的作 用延长了使用寿命防止了炉条壳的变形，电机 12旋转经传动装置 11带动炉条壳 19旋转， 炉条壳 19与中轴 18间有轴套或轴承 17 故中轴 18和定向凹板 8可以固定不转， 在风机 13、 泵 14的作用 下使炉膛 1的风室 2和炉条壳 19的风室 6中充满有一定压力的空 气并经孔或槽吹向炉膛 1 中， 增强了燃烧效果， 通过炉条壳 19 旋转落灰提高效率并使锅炉立体燃烧成为可行， 立体燃烧的炉膛 1 中炉温较高可有效分解不易燃烧的有毒气体如二恶英从而使垃 圾焚烧发电成无污染排放得以实现。
以上虽然以具有旋转炉条内置定向凹板 8为例进行了说明， 但是本发明的定向凹板也可外置， 围绕所述炉条壳的外周设置； 传动装置也可用齿轮或带轮带动， 风机 13、 泵 14也可以专用管 道通向炉膛 1的风室。
以上所述的优选实施方式是说明性的而不是限制性的在不脱 离本发明的主旨和基本特征的情况下本发明， 本实用新型还可以 其他方式进行实施和具体化， 本实用新型的范围由权利要求进行 限定，在权利要求范围内的所以变形都落入本实用新型的范围内。

Claims

1. 一种定向助燃风冷式旋转炉条， 包括能由驱动装置带动的、 内部中空的炉条壳以及位于炉条壳内部的定向凹板， 炉条壳上有 齿或槽， 齿或槽中有孔与炉条风室相通， 孔的外端通向炉膛， 以 将空气排至炉膛， 所述定向凹板为沿炉条壳的轴向延伸的筒形件 且其上仅具有朝向炉膛敞开的开口， 所述定向凹板独立于所述炉 条壳的旋转被支撑从而当所述炉条壳旋转时其固定不转， 所述定 向凹板具有接收来自一风机的空气的端部入口， 且将接收的空气 经所述开口导向所述孔进而导向炉膛。
2. 如权利要求 1所述的定向助燃风冷式旋转炉条， 其特征在 于， 所述定向凹板借助于中轴实现支撑， 所述中轴中空且具有与 定向凹部连通的通道， 所述中轴的一端与所述风机的空气出口相 连， 从而将来自风机的空气引入所述定向凹板中。
3. 如权利要求 2所述的定向助燃风冷式旋转炉条， 其特征在 于，炉条壳与中轴间有轴套或轴承配合。
4. 一种定向助燃风冷式旋转炉条， 包括能由驱动装置带动的、 内部中空的炉条壳以及围绕炉条壳的外周设置的定向凹板， 炉条 壳上有齿或槽， 齿或槽中有孔与炉条风室相通， 孔的外端通向炉 膛， 以将空气排至炉膛， 所述定向凹板为沿炉条壳的轴向延伸的 筒形件且其上仅具有朝向炉膛敞开的开口， 所述定向凹板独立于 所述炉条壳的旋转被支撑从而当所述炉条壳旋转时其固定不转， 所述炉条壳具有接收来自一风机的空气的端部入口， 且所述炉条 壳外测的定向凹板将空气导向炉膛。
5. 如权利要求 4所述的定向助燃风冷式旋转炉条， 其特征在 于， 所述定向凹板借助于中轴实现支撑。
6. 如权利要求 5所述的定向助燃风冷式旋转炉条， 其特征在 于，炉条壳与中轴间有轴套或轴承配合。
7. 一种立式炉膛， 其设置有如前述权利要求中任一项所述的 旋转炉条。
8. 如权利要求 7所述的立式炉膛， 其中， 所述炉膛的周边形 成有炉膛风室， 所述炉膛风室的面向炉膛内部的侧壁上形成有通 向炉膛的孔， 所述炉膛风室接收同样来自风机的空气， 从而将空 气引入炉膛中。
9. 如权利要求 7所述的定向助燃风冷式旋转炉条， 其特征在 于，旋转炉条壳的下方有回烟室， 回烟室上有回烟孔。
10. 如权利要求 7所述的定向助燃风冷式旋转炉条，其特征在 于，炉膛的至少一侧有排渣孔。
PCT/CN2011/000724 2010-04-23 2011-04-25 一种风冷旋转炉条 WO2011131039A1 (zh)

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