WO2009043212A1 - Structure de grille de foyer destinée à des fours de combustion de combustible solide - Google Patents

Structure de grille de foyer destinée à des fours de combustion de combustible solide Download PDF

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Publication number
WO2009043212A1
WO2009043212A1 PCT/CN2007/070822 CN2007070822W WO2009043212A1 WO 2009043212 A1 WO2009043212 A1 WO 2009043212A1 CN 2007070822 W CN2007070822 W CN 2007070822W WO 2009043212 A1 WO2009043212 A1 WO 2009043212A1
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WIPO (PCT)
Prior art keywords
grate
furnace
solid fuel
shape
fuel combustion
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Application number
PCT/CN2007/070822
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English (en)
French (fr)
Inventor
Zhanbin Che
Original Assignee
Zhanbin Che
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.)
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Publication date
Application filed by Zhanbin Che filed Critical Zhanbin Che
Priority to PCT/CN2007/070822 priority Critical patent/WO2009043212A1/zh
Publication of WO2009043212A1 publication Critical patent/WO2009043212A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H1/00—Grates with solid bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H11/00—Travelling-grates
    • F23H11/18—Details
    • F23H11/24—Removal of ashes; Removal of clinker
    • F23H11/26—Removal of ashes; Removal of clinker by dumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars

Definitions

  • the present invention relates to a solid fuel combustion furnace, and more particularly to a furnace structure of a solid fuel combustion furnace.
  • Conventional solid-burning furnaces generally include a furnace, a furnace, and a ash collection chamber disposed below the furnace.
  • the solid fuel is directly added to the furnace above the furnace for combustion.
  • Existing grate generally includes a plurality of cylindrical grate bars on which a substantially flat support surface is formed to support solid fuel.
  • the area of the furnace is also limited due to the area limitation under the furnace, so that the contact area of the solid fuel with the furnace is relatively small.
  • the air and the lower solid fuel on the furnace may be Longer contact between the turns is conducive to the full combustion of the fuel, but the smaller wind speed will cause the air volume to be too small, so that the amount of air in the furnace is insufficient, resulting in the lack of oxygen burning of the upper fuel or the high temperature required for combustion.
  • the combustion is incomplete, the black smoke is generated, and the combustion efficiency is reduced.
  • the wind speed is increased, the strong air flow will cause the smoke to be quickly discharged from the furnace, the smoke stays in the furnace for a short time, and the air is mixed unevenly, so that the smoke The combustible components in the gas cannot be fully burned, and the black smoke generation and combustion efficiency will be reduced.
  • the solid fuel on the same furnace will also be coked by high temperature combustion.
  • the technical problem to be solved by the present invention is to provide a furnace structure of a solid fuel combustion furnace which can improve the combustion efficiency of the solid fuel furnace and reduce emission pollution.
  • a furnace structure of a solid fuel combustion furnace the furnace includes a plurality of furnace bars, and at least part of the grate has a shape of high and low undulations
  • the lower portion of the grate having the high and low undulating shape is formed as a concave portion, and the higher portion is formed as a convex portion.
  • each of the grate bars may have a high and low undulating shape.
  • the high and low undulating shape of the grate is disposed to be formed as a recess of the grate at a position adjacent to the convex portion of the grate, adjacent to the concave portion of the grate
  • the positions are formed as convex portions of the grate, which facilitates the rational distribution of the solid fuel on the furnace, and facilitates the movement of the solid fuel during the combustion of the fuel, and the ash can automatically fall along the concave portion of the grate to form Automatic graying out.
  • the grate may be formed in a wave shape.
  • the grate bars are formed in a zigzag shape.
  • the grate bar is formed in a spiral shape
  • the spiral grate has a spiral rib and a spiral groove, wherein the spiral rib portion is formed as the convex portion
  • the spiral groove portion is formed as the recess.
  • the furnace may have raised ridges to further increase the surface area of the furnace, reduce the wind speed, and improve the combustion efficiency of the fuel.
  • the ridges of the furnace are inclined in the height direction to facilitate automatic ash removal.
  • the cross section of the furnace may be a triangular shape of a lower opening, or an arch shape, or a frustum shape of an open lower end or the like.
  • the furnace structure of the solid fuel combustion furnace of the present invention has an advantage over the prior art in that: since the furnace bar of the furnace structure of the present invention has a high and low undulating shape, and the existing cylindrical grate Compared with the furnace structure, the furnace has a larger surface area. For the same air volume, not only the wind speed from the furnace into the furnace is lowered, but also the area of the solid fuel in contact with the air on the furnace is greatly increased.
  • the fuel can be burned layer by layer from bottom to top, which not only helps the fuel of the lower layer to burn out, but also improves the combustion efficiency.
  • the fuel on the furnace has a lower temperature, thereby avoiding the problem of grate coking and keeping the fuel in the upper part of the solid fuel zone in a dry state instead of
  • the burnt ash ensures that the ash does not rise to the upper outlet and is vented to the atmosphere with the exhaust gas, thus reducing emissions.
  • the high and low undulating shape of the grate is also beneficial for the solid fuel to move from the convex portion of the grate to the concave portion as the volume decreases during the combustion process, and the ash is automatically squeezed and dropped during the movement to form an automatic Annealing avoids the forced ashing of existing furnaces.
  • Figure 1 is a schematic view of a furnace structure of the present invention
  • FIG. 2 is a schematic view showing another structure of the furnace of the present invention.
  • FIG. 3 is a schematic view showing still another structure of the furnace of the present invention.
  • FIG. 4 is a schematic view showing still another structure of the furnace of the present invention.
  • FIG. 5 is a schematic view of a grate having a spiral high and low undulating shape according to the present invention.
  • the present invention provides a furnace structure of a solid fuel combustion furnace, wherein the furnace 1 includes a plurality of grate bars 10, and at least a portion of the grate bars 10 have high and low undulations.
  • the shape in which the lower portion of the grate 10 having the high and low undulating shape is formed as the concave portion 101, and the higher portion is formed as the convex portion 102.
  • the grate 10 since the grate 10 has a high and low undulating shape, the grate 1 of the grate 10 having a high and low undulation shape and the conventional one having a cylindrical grate for the lower cross section of the same size furnace Compared with the furnace, it has a larger surface area; for the same amount of air, not only the wind speed from the furnace 1 into the furnace is lowered, but also the area of the solid fuel on the furnace 1 in contact with the air is greatly increased, and the fuel can be Lower layer-by-layer combustion not only contributes to the full burn-up of the lower fuel, but also improves the combustion efficiency, and because the wind speed decreases and the surface area in contact with the fuel increases, the fuel on the furnace 1 has a lower temperature, thereby avoiding
  • the problem of coking in the grate and the fact that the upper fuel is always in a dry state rather than the burned ash ensures that the ash does not rise to the upper outlet and is discharged into the atmosphere with the exhaust gas, thereby reducing emissions.
  • the high and low undulating shape of the grate 10 is also advantageous for the solid fuel to move from the convex portion 102 of the grate 10 to the concave portion 101 as the volume decreases during combustion, and the ash is automatically moved during the movement.
  • the extrusion is dropped to form an automatic annealing, which avoids the problem of forced ashing of the existing furnace.
  • large-volume fuels because of the large surface contact with air, it can be fully burned out, thereby avoiding the problem of forced dusting and improving the combustion efficiency.
  • each of the grate bars 10 preferably has a shape of high and low undulations, which enables the entire grate 1 to have a larger surface area, thereby further improving combustion efficiency and reducing emission pollution.
  • the recessed portion 101 and the convex portion 10 2 of the undulating shape on each of the grate bars 10 may have various arrangements over the entire furnace.
  • the undulation shape of the grate 10 is disposed to be formed at a position adjacent to the convex portion 102 of the grate 10.
  • the concave portion 101 of the grate 10, and the position adjacent to the concave portion 101 of the grate 10 is formed as the convex portion 102 of the grate 10, thereby facilitating the rational distribution of the solid fuel on the grate 1, so that the grate 1
  • the solid fuel has more surface contact with the air to improve the combustion efficiency, and during the combustion of the fuel, the ash can automatically fall along the concave portion of the grate 10 to form an automatic ash.
  • the furnace 1 may have a raised ridge 11 so that the furnace 1 has a larger surface area, thereby further increasing The contact area of solid fuel with air reduces wind speed, improves fuel combustion efficiency and reduces emissions.
  • the concave portion 101 of the grate 10 can also form a ash-removing channel downward from the ridge portion 11, so that the material moves downward from the ridge 11 as the volume decreases and the supporting force decreases during the combustion process, and the ash can be along The ash-removing channel falls below the furnace 1 to facilitate automatic ash removal during combustion.
  • the ridge 11 of the furnace 1 can be inclined in the height direction to facilitate the movement of the fuel during the combustion process, which is advantageous for The ash is automatically grayed out.
  • the cross-sectional shape of the furnace 1 may be various shapes as long as it has the raised ridges 11, and its specific shape is not limited herein.
  • the cross section of the furnace 1 may be a triangle with a lower end opening, and the upper corner of the triangle is formed as the ridge;
  • the cross section of the grate 1 may also be arched, and the highest portion of the arch is formed as the ridge 11; as shown in FIG. 4, the cross section of the grate 1 may also be a frustum shape with a lower end opening.
  • the upper mesa of the frustum is formed as the ridge portion 11 described above.
  • the ridge portion 11 may be provided with two or more for a larger furnace structure as needed to further increase the surface area of the furnace 1 and will not be described in detail herein.
  • the undulating shape of the grate 10 may have various forms as long as the continuous concave portion 101 and the convex portion 102 can be formed to form a high and low undulating shape, and the specific structure thereof is not limited.
  • the undulating shape of the grate 10 as shown in Figs. 1, 3, and 4, the grate 10 may be formed in a wave shape, and the trough position on the wavy grate 10 The concave portion 101 is formed, and the peak position is formed as the convex portion 102.
  • the grate 10 is formed in a zigzag shape, and the tip end portion of the zigzag grate 10 is formed as a In the convex portion 101 described above, the root portion is formed as the concave portion 102 described above.
  • the grate 10 is formed in a spiral shape, and the spiral grate 10 has a spiral rib and a spiral groove.
  • the spiral rib portion is formed as the convex portion 102
  • the spiral groove portion is formed as the concave portion 101.
  • the grate 10 of the grate 1 is of a high and low undulation shape
  • the grate 10 on the grate 1 can be smashed.
  • a combination of two or more types of high and low undulations for example, a partial slab 10 slanted with a wavy high and low undulating shape, a portion of the slats 10 ⁇ with a zigzag undulation shape, and a portion of the slats 10 ⁇ with a spiral undulation Shapes, etc., are not detailed here.

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

Description

固体燃料燃烧炉的炉箅结构
#細或
[1] 本发明有关于一种固体燃料燃烧炉， 具体地讲， 是一种固体燃料燃烧炉的炉箅 结构。
[2] 传统的固体燃烧炉一般包括炉膛、 炉箅和设置在炉箅下方的集灰室， 固体燃料 直接添加到炉箅上方的炉膛内进行燃烧。 现有的炉箅一般包括有多根柱形的炉 条， 在该多根炉条上形成一个基本平的支撑面， 以支撑固体燃料。 这样， 对于 一定体积的炉膛来讲， 由于炉膛下方的面积限制， 该炉箅的面积也受到限制， 从而使得固体燃料与炉箅的接触面积比较小。 在固体燃料燃烧过程中， 从炉箅 下方进入的风和燃烧产物同向流动并直接排出高温炉膛， 如果向炉箅供给的风 的风速较小， 可以使空气与炉箅上的下层固体燃料有较长的接触吋间， 有利于 燃料的充分燃烧， 但是较小的风速将会造成风量过小， 使炉膛内的空气量不足 ， 导致上部燃料缺氧燃烧或无法达到燃烧所需的高温， 使燃烧不完全， 产生黑 烟， 燃烧效率降低； 而如果加大风速， 强气流又将使烟气快速从炉膛内排出， 烟气在炉膛内停留吋间短， 且与空气混合不均匀， 使得烟气中的可燃成分不能 充分燃尽， 也将造成黑烟的产生和燃烧效率的降低， 同吋炉箅上的固体燃料也 将会因高温燃烧而结焦。
[3] 另外， 在该传统的固体燃烧炉中， 由于炉箅上的支撑面为一个基本平的面， 固 体燃料燃烧后不易移动， 影响了燃料燃烧后产生的灰烬的下落， 从而也导致了 灰烬随强热气流进入尾气直接排放， 造成排放污染和强制退灰问题。 并且， 对 于大体积燃料， 如果长吋间不能燃尽， 将导致被强制疏灰的问题， 不但给使用 者的使用带来了麻烦， 而且在进行强制疏灰吋会带走一部分在燃燃料， 使燃烧 效率降低。
[4] 因此， 有必要提供一种固体燃料燃烧炉的新型炉箅结构， 来克服传统炉箅结构 存在的上述缺陷。 [5] 本发明所要解决的技术问题在于， 提供一种固体燃料燃烧炉的炉箅结构， 其能 够提高固体燃料炉的燃烧效率， 降低排放污染。
[6] 本发明的上述技术问题可釆用如下技术方案来解决： 一种固体燃料燃烧炉的炉 箅结构， 该炉箅包括有多根炉条， 至少部分所述炉条具有高低起伏的形状， 其 中该具有高低起伏形状的炉条上的较低的部分形成为凹部， 较高的部分形成为 凸部。
[7] 在本发明的较佳实施例中， 所述的每根炉条均可具有高低起伏的形状。
[8] 在本发明的一个较佳实施方式中， 炉条的高低起伏形状设置成， 在与炉条的凸 部相邻的位置均形成为炉条的凹部， 而与炉条的凹部相邻的位置均形成为炉条 的凸部， 从而有利于固体燃料在炉箅上的合理分布， 并在燃料的燃烧过程中， 便于固体燃料的移动， 炉灰能够沿炉条的凹部自动落下， 形成自动退灰。
[9] 在本发明的一个可选实施例中， 所述的炉条可形成为波浪形。
[10] 在本发明的另一个可选实施例中， 所述的炉条形成为锯齿形。
[11] 在本发明的再一个可选实施例中， 所述的炉条形成为螺旋形， 该螺旋形炉条具 有螺旋棱和螺旋槽， 其中所述的螺旋棱部分形成为所述的凸部， 所述的螺旋槽 部分形成为所述的凹部。
[12] 在本发明的一个较佳实施方式中， 所述的炉箅可具有隆起的脊部， 以进一步增 加炉箅的表面积， 降低风速， 提高燃料的燃烧效率。
[13] 在该实施方式的较佳实施例中， 所述炉箅的脊部在高度方向倾斜设置， 便于自 动退灰。
[14] 在该实施方式中， 作为几个具体的可选实施例， 所述的炉箅的截面可为下端开 口的三角形， 或拱形， 或下端开口的锥台形等。
[15] 本发明的固体燃料燃烧炉的炉箅结构与现有技术相比， 其优点在于： 由于本发 明的炉箅结构的炉条具有高低起伏的形状， 与现有的具有柱形炉条的炉箅结构 相比， 使炉箅具有了更大的表面积， 对于相同的风量来讲， 不但使从炉箅进入 炉膛的风速下降， 而且炉箅上的固体燃料与空气接触的面积也大幅增加， 燃料 能够由下向上逐层燃烧， 不但有利于下层燃料的充分燃尽， 提高了燃烧效率， 并且由于风速的降低和与燃料接触的表面积增大， 使得炉箅上的燃料具有较低 的温度， 从而避免了炉排结焦问题， 并使位于固态燃料区上部的燃料始终处于 干燥状态而不是已燃尽的灰分， 保证了灰分不会上升至上出口而随尾气排入大 气中， 从而降低了排放污染。 另外， 该炉条的高低起伏形状， 也有利于燃烧过 程中固体燃料随着体积减小而由炉条的凸部向凹部移动， 并在移动过程中将炉 灰自动挤压落下， 从而形成自动退火， 避免了现有炉箅的强制退灰问题。
國删
[16] 以下附图仅是对本发明的结构所作的示意性图例， 并不限定本发明的范围。 其 中，
[17] 图 1为本发明的一种炉箅结构示意图；
[18] 图 2为本发明的另一种炉箅结构示意图；
[19] 图 3为本发明的再一种炉箅结构示意图；
[20] 图 4为本发明的再一种炉箅结构示意图；
[21] 图 5为本发明具有螺旋状高低起伏形状的炉条示意图。
難
[22] 如图 1一图 5所示， 本发明提供了一种固体燃料燃烧炉的炉箅结构， 其中炉箅 1 包括有多根炉条 10， 至少部分所述炉条 10具有高低起伏的形状， 其中该具有高 低起伏形状的炉条 10上的较低的部分形成为凹部 101， 较高的部分形成为凸部 10 2。 釆用上述炉箅结构， 由于炉条 10具有高低起伏的形状， 对于同样大小的炉膛 下部横截面来讲， 该具有高低起伏的形状的炉条 10的炉箅 1与具有柱形炉条的传 统炉箅相比， 具有更大的表面积； 对于相同的风量来讲， 不但使从炉箅 1进入炉 膛的风速下降， 而且炉箅 1上的固体燃料与空气接触的面积也大幅增加， 燃料能 够由下向上逐层燃烧， 不但有利于下层燃料的充分燃尽， 提高了燃烧效率， 并 且由于风速的降低和与燃料接触的表面积增大， 使得炉箅 1上的燃料具有较低的 温度， 从而避免了炉排结焦问题， 并使上部的燃料始终处于干燥状态而不是已 燃尽的灰分， 保证了灰分不会上升至上出口而随尾气排入大气中， 从而降低了 排放污染。 另外， 该炉条 10的高低起伏形状， 也有利于燃烧过程中固体燃料随 着体积减小而由炉条 10的凸部 102向凹部 101移动， 并在移动过程中将炉灰自动 挤压落下， 从而形成自动退火， 避免了现有炉箅的强制退灰问题。 特别是， 对 于大体积燃料， 由于有较大的表面与空气接触， 能够使其充分燃尽， 从而也避 免了强制疏灰问题， 提高了燃烧效率。
[23] 在本发明中， 只要有部分炉条 10具有高低起伏的形状， 与现有的柱状炉条相比 ， 就能够具有更好的效果， 但是从优化角度来讲， 如图 1 - 4所示， 所述的每根 炉条 10最好均具有高低起伏的形状， 这样能够使整个炉箅 1具有更大的表面积， 从而进一步提高燃烧效率， 降低排放污染。
[24] 在本发明中， 在整个炉箅 1上， 各炉条 10上的高低起伏形状的凹部 101和凸部 10 2可具有多种排列方式。 在本发明的一个较佳实施方式中， 如图 1所示， 对于整 个炉箅 1来讲， 炉条 10的高低起伏形状设置成， 在与炉条 10的凸部 102相邻的位 置均形成为炉条 10的凹部 101， 而与炉条 10的凹部 101相邻的位置均形成为炉条 1 0的凸部 102， 从而有利于固体燃料在炉箅 1上的合理分布， 使炉箅 1上的固体燃 料有更多的表面接触空气， 提高燃烧效率， 并且在燃料的燃烧过程中， 灰分能 够沿炉条 10的凹部自动落下， 形成自动退灰。
[25] 如图 2—图 4所示， 在本发明的一个较佳实施方式中， 所述的炉箅 1可具有隆起 的脊部 11， 使炉箅 1具有更大的表面积， 从而进一步增加固体燃料与空气的接触 面积， 降低风速， 提高燃料的燃烧效率并降低排放污染。 并且， 炉条 10的凹部 1 01还可从脊部 11向下形成退灰槽道， 使燃烧过程中物料随着体积的减小和支撑 力的减弱从脊部 11向下移动， 灰分能够沿该退灰槽道落入到炉箅 1下方， 从而有 利于燃烧过程中灰分的自动退灰。
[26] 如图 2—图 4所示， 在该实施方式的较佳实施例中， 所述炉箅 1的脊部 11可在高 度方向倾斜设置， 便于燃料在燃烧过程中的移动， 有利于灰分的自动退灰。
[27] 在该实施方式中， 炉箅 1的截面形状可以是各种形状， 只要具有隆起的脊部 11 即可， 其具体形状在此不作限制。 作为几个具体的可选实施例， 如图 2所示， 所 述的炉箅 1的截面可为下端开口的三角形， 该三角形的上尖角处形成为所述的脊 部； 如图 3所示， 该炉箅 1的截面也可为拱形， 该拱形的最高处形成为所述的脊 部 11 ; 如图 4所示， 该炉箅 1的截面也可为下端开口的锥台形， 该锥台的上台面 形成为所述的脊部 11。 在如图 2— 4所示的例子中， 均只示出了具有一个脊部 11 的例子， 根据需要， 对于较大的炉箅结构， 该脊部 11也可设置有两个或两个以 上， 以进一步增大炉箅 1的表面积， 在此不再详述。
[28] 在本发明中， 炉条 10的高低起伏形状可具有多种形式， 只要能够形成连续的凹 部 101和凸部 102以连成高低起伏形状即可， 其具体结构可不作限制。 作为该炉 条 10的高低起伏形状的一个可选实施例， 如图 1、 图 3、 图 4所示， 所述的炉条 10 可形成为波浪形， 该波浪形炉条 10上的波谷位置形成为所述的凹部 101， 波峰位 置形成为所述的凸部 102。
[29] 在炉条 10的高低起伏形状的另一个可选实施例中， 如图 2所示， 所述的炉条 10 形成为锯齿形， 该锯齿形炉条 10的齿尖部分形成为所述的凸部 101， 齿根部分形 成为所述的凹部 102。
[30] 在炉条 10的高低起伏形状的再一个可选实施例中， 如图 5所示， 所述的炉条 10 形成为螺旋形， 该螺旋形炉条 10具有螺旋棱和螺旋槽， 其中所述的螺旋棱部分 形成为所述的凸部 102， 所述的螺旋槽部分形成为所述的凹部 101。
[31] 在上述图 1 5中虽然仅给出了炉箅 1的炉条 10由其中一种高低起伏形状的例子 ， 但可以理解， 在本发明中， 炉箅 1上的炉条 10可以釆用两种或两种以上高低起 伏形状的组合， 例如部分炉条 10釆用波浪形的高低起伏形状、 部分炉条 10釆用 锯齿形的高低起伏形状、 部分炉条 10釆用螺旋形高低起伏形状等， 在此不再一 一详述。
[32] 以上所述仅为本发明示意性的具体实施方式， 不能以其限定本发明的范围。 在 本发明基础上的等同组件的放大， 缩小， 置换， 或依本发明所作的等同变化与 修改， 均应包括在本发明的保护范围内。

Claims

权利要求书
一种固体燃料燃烧炉的炉箅结构， 该炉箅包括有多根炉条， 其特征在 于， 至少部分所述炉条具有高低起伏的形状， 其中该具有高低起伏的 形状的炉条上的较低的部分形成为凹部， 较高的部分形成为凸部。 如权利要求 1所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 的每根炉条均具有高低起伏的形状。
如权利要求 1或 2所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所 述炉条的高低起伏形状设置成， 在与炉条的凸部相邻的位置均形成为 炉条的凹部， 而与炉条的凹部相邻的位置均形成为炉条的凸部， 从而 有利于固体燃料在炉箅上的合理分布， 并在燃料的燃烧过程中， 炉灰 能够沿炉条的低处自动落下， 形成自动退灰。
如权利要求 1所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 的炉条形成为波浪形。
如权利要求 1所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 的炉条形成为锯齿形。
如权利要求 1所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 的炉条形成为螺旋形， 该螺旋形炉条具有螺旋棱和螺旋槽， 其中所述 的螺旋棱形成为所述的凸部， 所述的螺旋槽形成为所述的凹部。 如权利要求 1所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 的炉箅具有隆起的脊部。
如权利要求 7所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所述 炉箅的脊部在高度方向倾斜设置。
如权利要求 7或 8所述的固体燃料燃烧炉的炉箅结构， 其特征在于， 所 述的炉箅的截面为下端开口的三角形， 或拱形， 或下端开口的锥台形
PCT/CN2007/070822 2007-09-29 2007-09-29 Structure de grille de foyer destinée à des fours de combustion de combustible solide WO2009043212A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600245A5 (en) * 1976-11-30 1978-06-15 I I C C Ag Fireplace equipment with adjustable fire grid
CN2217760Y (zh) * 1994-08-12 1996-01-17 王富 滑动式连续燃烧炉
CN2360728Y (zh) * 1999-01-19 2000-01-26 姜光明 多曲面高效炉排
CN2473469Y (zh) * 2001-02-26 2002-01-23 冷庆春 高效节能新型炉排

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600245A5 (en) * 1976-11-30 1978-06-15 I I C C Ag Fireplace equipment with adjustable fire grid
CN2217760Y (zh) * 1994-08-12 1996-01-17 王富 滑动式连续燃烧炉
CN2360728Y (zh) * 1999-01-19 2000-01-26 姜光明 多曲面高效炉排
CN2473469Y (zh) * 2001-02-26 2002-01-23 冷庆春 高效节能新型炉排

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