WO2016024328A1 - Combustion device - Google Patents

Combustion device Download PDF

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Publication number
WO2016024328A1
WO2016024328A1 PCT/JP2014/071300 JP2014071300W WO2016024328A1 WO 2016024328 A1 WO2016024328 A1 WO 2016024328A1 JP 2014071300 W JP2014071300 W JP 2014071300W WO 2016024328 A1 WO2016024328 A1 WO 2016024328A1
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Prior art keywords
rooster
rotating
fuel
fixed
clinker
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PCT/JP2014/071300
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French (fr)
Japanese (ja)
Inventor
鈴木　博
正人 青島
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二光エンジニアリング株式会社
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Application filed by 二光エンジニアリング株式会社 filed Critical 二光エンジニアリング株式会社
Priority to JP2015510564A priority Critical patent/JP5740545B1/en
Priority to PCT/JP2014/071300 priority patent/WO2016024328A1/en
Priority to MDA20160113A priority patent/MD20160113A2/en
Publication of WO2016024328A1 publication Critical patent/WO2016024328A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • F23B40/04—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed from below through an opening in the fuel-supporting surface
    • 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

Definitions

  • the present invention relates to a combustion apparatus for burning a solid fuel in which crushed materials such as wood are formed into pellets or lumps.
  • one end of the transport plate is arranged at the position of one end (opening) of the transport cylinder, and the wood pellet is subjected to a lateral transport force due to the rotation of the transport plate.
  • the transport cylinder is displaced laterally with respect to the lateral center of the rooster part so that the wood pellets are spread evenly in the lateral direction.
  • an object of the present invention is to provide a pelletized fuel combustion apparatus capable of improving the combustion state of a solid fuel such as pellets by suppressing the accumulation of combustion debris and the generation of clinker in the rooster part.
  • Another object of the present invention is to provide a combustion apparatus that prevents clinker such as combustion residue after combustion from solidifying and staying firmly in the rooster part, and is excellent in combustibility and maintainability.
  • a combustion apparatus includes a fuel transport unit in which pellet-like or lump solid fuel is pushed and transported in the horizontal direction by rotation of a spiral fuel feed shaft provided therein, and the fuel feed
  • a fuel discharge part of the fuel transfer part formed by opening vertically upward from the shaft tip part side, a rooster part attached to the fuel discharge part and the solid fuel being pushed up and burned through the opening part,
  • the rooster portion is a substantially conical fixed rooster attached to the fuel discharge portion, a rotary rooster that is rotatably disposed on the upper peripheral edge of the fixed rooster, and a rooster rotary blade that rotates the rotary rooster.
  • Has A rotating rooster claw projecting in the center direction is formed inside the rotating rooster, and a fixed rooster claw partially protruding upward is formed on the fixed rooster, along with the rotation of the rotating rooster by the rooster rotary blade.
  • the combustion apparatus of the present invention is the combustion apparatus according to (1), wherein the rooster rotor blades that rotate the rotary rotor are rotating blades attached to the tip of the rotary shaft of the fuel feed shaft of the fuel transfer section.
  • the rotary rooster is rotated on the fixed rooster by pushing and rotating the rotary rooster hook provided at the lower portion of the rooster.
  • the combustion apparatus of the present invention is the combustion apparatus according to the above (1) or (2), wherein the clinker removing apparatus includes a vertical bar fixed to a rotating rooster and extending upward, and a vertical bar extending horizontally from a tip of the vertical bar.
  • the opening part of the rooster part is not blocked by a clinker such as combustion residue.
  • the combustibility can be kept constant at all times, and the maintainability is excellent.
  • a clinker removing device is provided on the rotating rooster, it prevents the clinker from growing and sticking to a certain size or more on the rooster, so that solid fuel such as pellets burned on the rooster can be obtained. It can be maintained properly at all times.
  • FIG. 1 is a schematic perspective view of a combustion apparatus according to an embodiment of the present invention. It is an expansion perspective view of a rooster part. It is a disassembled perspective view of a rooster part. It is a schematic explanatory drawing of a clinker removal apparatus. It is explanatory sectional drawing of a fuel conveyance part. (A) It is explanatory sectional drawing explaining the fuel conveyance state in a rooster part. (B) It is explanatory drawing explaining the rotational drive mechanism which rotates a rotation rooster. It is a schematic sectional drawing explaining the usage condition of the combustion apparatus which concerns on embodiment of this invention.
  • the combustion apparatus 10 of the present embodiment is provided with pellet-like or massive solid fuel therein.
  • a fuel transport unit 11 that is pushed and transported in the horizontal direction by the rotation of the spiral fuel feed shaft;
  • a fuel discharge unit 12 of the fuel transport unit that is formed to open vertically upward from the front end of the fuel feed shaft;
  • a rooster part 13 attached to the fuel discharge part 12 and solid fuel is pushed up through the opening and burned.
  • the rooster 13 is an abbreviation provided with a base 12a attached to a fuel discharge part 12 opened upward on the front side of the fuel transport part 11, and an opening 13a fixed on the base 12a and through which solid fuel is pushed up.
  • a conical fixed rooster 13d and a rotating rooster 13e that is rotatably mounted on the fixed rooster 13d are provided.
  • the rooster portion 13 is made of a heat-resistant casting or the like formed in a substantially conical shape as a whole, and has an opening portion 13a having an opening through which the solid fuel pushed up from the fuel transport portion 11 passes. Since the top portion of the rooster portion 13 has a substantially conical shape directed upward, the area of the combustion portion provided with the air holes 13f can be widened, and the clinker is formed along the inclined surface 13k forming the combustion portion. Combustion can be continued while dropping outward.
  • the clinker refers to a solidified product of combustion ash.
  • the rooster part 13 is provided with the rooster rotary blade
  • the rooster rotary blade 20 includes a rotary vane 21 attached to the tip of the shaft portion 11c of the fuel feed shaft of the fuel transport unit 11, and a rotary rooster hook 13c provided below the rotary rooster 13e. Is done.
  • the rotary blade 21 is a rod-like rotary body that is coaxially fixed to the tip end side of the fuel feed shaft 11b, and the tip of the rotary blade 21 that rotates in synchronization with the fuel feed shaft 11b abuts against the side wall of the rotary rooster hook 13c.
  • the rotation rooster 13e is rotated on the fixed rooster 13d by a predetermined angle. That is, the rotary vane 21 rotates the rotary rooster 13e on the fixed rooster by pushing around a plurality of rotary rooster hooks 13c arranged at equal intervals around the lower circumferential portion of the rotary rooster 13e formed in a conical shape.
  • FIG. 3 An exploded perspective view of the rooster part of FIG. 3, a schematic explanatory view of the clinker removing device of FIG. 4, an explanatory cross-sectional view of the fuel transfer part of FIG. 5, and an explanatory cross-section for explaining the fuel transfer state in the rooster part of FIG.
  • the clinker removing device will be described with reference to the explanatory diagram of the rotational drive mechanism for rotating the rotational rooster in FIG.
  • a clinker removing device 30 that rotates together with the rotating rooster 13 e is fixed to the upper portion of the rooster portion 13, and the crushed small pieces are removed from the outer peripheral edge of the rooster portion 13.
  • the clinker removing device 30 includes a vertical bar 31 fixed to the rotating rooster 13e and extending upward, a first horizontal bar 32 extending horizontally from the tip of the vertical bar, and an angle from the tip of the first horizontal bar 32. And a second horizontal bar 33 extending horizontally.
  • a member for removing the clinker of the fixed rooster 13d is suspended from the second horizontal bar 33 and attached thereto. That is, the clinker removing member 34 is attached to the tip of the second horizontal bar 33 (in the direction of the outer edge of the fixed rooster) as the first member, and the clinker removing plate 35 near the attachment position of the first horizontal bar as the second member. Is attached.
  • the clinker removing member 34 plays a role of stirring the clinker fixed and staying on the fixed rooster 13d, and the clinker removing plate 35 discharges the mixed clinker from the outer edge of the fixed rooster 13d to remove the clinker of the fixed rooster 13d. To play a role. As described above, since the clinker removing device 30 is provided on the rotating rooster 13e, the clinker adhering and staying on the fixed rooster 13d after the solid fuel burns is crushed and discharged, and the continuous combustion of the solid fuel is stabilized. Can be maintained.
  • the fuel transport unit 11 rotates the fuel feed shaft 11b to push up the solid fuel from the back side of the rooster portion 13, the solid fuel is raised on the upper surface of the fixed rooster 13d.
  • the flow of solid fuel that passes through the flank keeps the flammability constant at all times without being clogged by the clinker or unburned matter adhering to the opening 13a, and maintenance for the cleaning of the rooster portion 13, etc. Can be omitted.
  • the fuel transport unit 11 includes a fuel feed shaft 11b provided with a screw blade made of steel or the like at the center of the substantially cylindrical container, and a drive unit such as an electric motor 22 that drives the fuel feed shaft 11b. It has a fuel hopper 17 or the like continuously provided on the base end side of the cylindrical container, and operations such as supply of solid fuel supplied to the rooster part 13 by a control unit connected to the drive unit, supply amount, on / off operation, etc. Can be controlled.
  • the combustion apparatus of the present embodiment controls the supply amount of the solid fuel supplied to the rooster portion 13 based on the detection signal of the thermosensor 25 provided in the can body 23, ON / OFF control of the combustion state on the rooster 13 can also be performed.
  • a backfire prevention thermosensor 29 may be provided to provide a backfire prevention function. In this case, a backfire prevention thermosensor 29 is provided on the upstream end side of the cylindrical casing 11a in the fuel transfer section 11, and the backfire prevention is performed when the seed fire on the rooster section 13 moves into the cylindrical casing 11a.
  • the thermosensor 29 detects a specified temperature or higher, rotates the fuel feed shaft 11b based on the detection signal from the backfire prevention thermosensor 29, pushes up the fuel to the rooster portion 13, and feeds and burns combustion air. Backfire can be prevented.
  • the backfire prevention thermosensor 29 it is possible to prevent the fire from being transferred to the fuel hopper 17 connected to the fuel transfer unit 11 or the fuel feed shaft 11b from being damaged by heat.
  • a combustion apparatus with excellent safety can be provided. By controlling such a combustion state, continuous operation can be performed easily and safely, and the operating efficiency can be greatly improved.
  • the combustion apparatus 10 shown in FIG. 1 is built in so as to be able to be taken in and out, a combustion chamber 14 for burning solid fuel to generate combustion gas, and the combustion gas is supplied to the cylindrical gas flow path. It is also possible to provide a smoke pipe section 15 that is subjected to heat exchange with gas or water flowing around the outside and discharged to the outside. As a result, the combustion heat in the rooster portion 13 can be efficiently recovered and heat recovery is excellent, and the rooster portion 13 is pulled out from the combustion chamber 14 and can be easily cleaned and maintained in a large space. Is excellent.
  • the combustion chamber 14 is formed in a cylindrical container shape or the like, and the solid fuel on the rooster portion 13 is burned in a predetermined combustion state.
  • the smoke pipe section 15 is composed of a large number of pipe pipes 15a, and high-temperature combustion gas generated in the combustion chamber 14 is supplied to the cylindrical gas flow path of the pipe pipe 15a, and water and gas supplied to the outside of the pipe pipes. To be able to heat.
  • the combustion apparatus of the present invention can improve the combustion state of solid fuel such as pellets by suppressing the generation and accumulation of clinker in the rooster part, and the clinker such as combustion debris after combustion solidifies and adheres to the rooster part It has high flammability and maintainability, so it has high industrial applicability.
  • Combustion device 11 Fuel transfer section 11a: Cylindrical casing 11b: Fuel feed shaft 11c: Shaft section 12: Fuel discharge section 12a: Base 13: Rooster section 13a: Opening section 13c: Rotating rooster hook 13d: Fixed rooster 13e: Rotating rooster 13f: Air hole 13k: Inclined surface 14: Combustion chamber 15: Smoke pipe portion 15a: Pipe pipe 17: Fuel hopper 18: Blower 20: Rooster rotor blade 21: Rotating blade 22: Electric motor 23: Can body 25: Thermo sensor 26: Rotating rooster claw 27: Fixed rooster claw 28: Clearance 29: Backfire prevention thermosensor 30: Clinker removal device 31: Vertical bar 32: First horizontal bar 33: Second horizontal bar 34: Clinker removal member 35: Clinker removal Board

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

Abstract

[Problem] To provide a combustion device for a pellet fuel, the device being able to suppress the accumulation or generation of clinker in a grate part and improve a combustion state of solid fuel having a pellet shape or the like. [Solution] The present invention comprises a fuel transport part 11 that transports a solid fuel, a fuel discharge part 12 that opens vertically upward, and a grate part 13 that combusts the solid fuel. The grate part has a conical fixed grate 13d, a rotating grate 13e that is rotatably disposed on an upper part of the peripheral edge of the fixed grate, and a grate rotary vane 20 that rotates the rotating grate. Clinker is sandwiched and pulverized into small pieces by a rotating grate claw 26 formed on the inside of the rotating grate and a fixed grate claw 27 that protrudes upward from the fixed grate, and the small pieces are removed from the outer peripheral edge of the grate part by a clinker removal device that rotates together with the rotating grate.

Description

燃焼装置Combustion device
　本発明は、木材などの破砕物をペレット状や塊状等に形成した固形燃料を燃焼させる燃焼装置に関する。 The present invention relates to a combustion apparatus for burning a solid fuel in which crushed materials such as wood are formed into pellets or lumps.
　従来、木質ペレットを燃料とする燃焼装置として、スクリューで燃料を搬送してロストル部に搬送すると共に、ロストル部において木質ペレットを燃焼させる装置が使用されている。
　このような木質ペレット燃焼装置は、例えば特許文献１（特開２００９－１９２１７８公報）に記載されているように、スクリューが円筒状の搬送筒を有しており、搬送筒内には、円軸状の回転軸が配置されている。回転軸の周囲には、螺旋状の搬送板が固定されており、回転軸及び搬送板が一体回転されることで、搬送筒内に供給されたペレット状燃料が、搬送筒内を搬送板によって搬送されて、搬送筒の一端（開口部）からロストル部に排出されるようになっている。
　特許文献１の木質ペレット燃焼装置では、搬送板の一端が搬送筒の一端（開口部）の位置に配置されており、木質ペレットが搬送板の回転による横方向への搬送力を作用された状態で搬送筒の一端から排出されるため、搬送筒をロストル部の横方向中央に対して横方向へずらして配置して木質ペレットをロストル部に横方向において均一に広げるようにしているが、ロストル部に木質ペレットが溜まると、搬送筒の一端から排出される木質ペレットがロストル部の木質ペレットの上側に移動して、ロストル部で木質ペレットの山が高くなり、ロストル部では木質ペレットが山から崩れ落ちて広がるようになる。
　このため、ロストル部で木質ペレットが滞留し易く、燃焼カスの蓄積や燃焼カス等が凝固したクリンカーが発生し易くなり、木質ペレットの燃焼状態が悪くなるという問題点がある。 2. Description of the Related Art Conventionally, as a combustion apparatus using wood pellets as a fuel, an apparatus for transporting fuel with a screw and transporting it to a rooster part and burning the wood pellets in the rooster part has been used.
In such a wood pellet combustion apparatus, for example, as described in Patent Document 1 (Japanese Patent Laid-Open No. 2009-192178), a screw has a cylindrical transfer cylinder, and a circular axis is included in the transfer cylinder. A rotating shaft is arranged. A spiral conveyance plate is fixed around the rotation shaft. By rotating the rotation shaft and the conveyance plate integrally, the pellet fuel supplied to the conveyance cylinder is moved inside the conveyance cylinder by the conveyance plate. It is transported and discharged from one end (opening) of the transport cylinder to the rooster.
In the wood pellet combustion apparatus of Patent Document 1, one end of the transport plate is arranged at the position of one end (opening) of the transport cylinder, and the wood pellet is subjected to a lateral transport force due to the rotation of the transport plate. In this case, the transport cylinder is displaced laterally with respect to the lateral center of the rooster part so that the wood pellets are spread evenly in the lateral direction. When the wood pellets accumulate in the section, the wood pellets discharged from one end of the transport cylinder move to the upper side of the wood pellets in the rooster part, and the pile of wood pellets rises in the rooster part. It collapses and spreads.
For this reason, there is a problem in that the wood pellets easily stay in the rooster part, the clinker in which the combustion residue is accumulated or the combustion residue is solidified, and the combustion state of the wood pellet is deteriorated.
特開２００９－１９２１７８公報JP 2009-192178 A
　本発明は、上記課題を解決するため、ロストル部における燃焼カスの蓄積やクリンカーの発生を抑制してペレット状などの固形燃料の燃焼状態を向上できるペレット状燃料の燃焼装置を提供することを目的とする。
　また、本発明の他の目的は、燃焼後の燃焼カスなどのクリンカーが固形化してロストル部に固着滞留することを防止し、燃焼性とメンテナンス性に優れた燃焼装置を提供することである。 In order to solve the above problems, an object of the present invention is to provide a pelletized fuel combustion apparatus capable of improving the combustion state of a solid fuel such as pellets by suppressing the accumulation of combustion debris and the generation of clinker in the rooster part. And
Another object of the present invention is to provide a combustion apparatus that prevents clinker such as combustion residue after combustion from solidifying and staying firmly in the rooster part, and is excellent in combustibility and maintainability.
（１）本発明の燃焼装置は、ペレット状や塊状の固形燃料がその内部に設けられた螺旋状の燃料送りシャフトの回転により水平方向に押し出されて搬送される燃料搬送部と、前記燃料送りシャフト先端部側から垂直上向きに開口して形成された前記燃料搬送部の燃料排出部と、前記燃料排出部に取り付けられ前記固形燃料がその開口部を介して押し上げられ燃焼されるロストル部と、を備え、
前記ロストル部が、前記燃料排出部に取り付けられる略円錐状の固定ロストルと、前記固定ロストルの周縁上部に回転自在に配設される回転ロストルと、前記回転ロストルを回転させるロストル回転羽根と、を備えており、
前記回転ロストルの内側には、中心方向に張り出した回転ロストル爪が形成され、前記固定ロストル上には一部分が上方に突出した固定ロストル爪が形成され、前記ロストル回転羽根による回転ロストルの回転に伴って、前記固定ロストル爪と回転ロストル爪との間でクリンカーを挟んで粉砕して小片とし、前記回転ロストル上に固着され回転ロストルとともに回転するクリンカー除去装置によって、前記小片をロストル部の外周縁から除去するようにしたことを特徴とする。
（２）本発明の燃焼装置は、上記（１）において、前記回転ロストルを回転させるロストル回転羽根は、前記燃料搬送部の燃料送りシャフトの回転軸の先端部に取付けられた回転羽根が、回転ロストルの下部に設けられた回転ロストルフックを押し回すことによって、固定ロストル上において回転ロストルを回転させることを特徴とする。
（３）本発明の燃焼装置は、上記（１）又は（２）において、前記クリンカー除去装置は、回転ロストルに固定され上方に延伸する垂直棒と、垂直棒の先端から水平方向に延伸する第１水平棒と、第１水平棒の先端から角度を変えて水平方向に延伸する第２水平棒と、を備え、
前記第２水平棒には、クリンカー除去部材が垂下して取り付けられており、前記回転ロストルとともに回転して、固定ロストルのクリンカーを除去をするようにしたことを特徴とする。 (1) A combustion apparatus according to the present invention includes a fuel transport unit in which pellet-like or lump solid fuel is pushed and transported in the horizontal direction by rotation of a spiral fuel feed shaft provided therein, and the fuel feed A fuel discharge part of the fuel transfer part formed by opening vertically upward from the shaft tip part side, a rooster part attached to the fuel discharge part and the solid fuel being pushed up and burned through the opening part, With
The rooster portion is a substantially conical fixed rooster attached to the fuel discharge portion, a rotary rooster that is rotatably disposed on the upper peripheral edge of the fixed rooster, and a rooster rotary blade that rotates the rotary rooster. Has
A rotating rooster claw projecting in the center direction is formed inside the rotating rooster, and a fixed rooster claw partially protruding upward is formed on the fixed rooster, along with the rotation of the rotating rooster by the rooster rotary blade. And crushing with a clinker between the fixed rooster claw and the rotary rooster claw to form a small piece, and the small piece is removed from the outer peripheral edge of the rooster portion by a clinker removing device fixed on the rotary rooster and rotating together with the rotary rooster. It is characterized by being removed.
(2) The combustion apparatus of the present invention is the combustion apparatus according to (1), wherein the rooster rotor blades that rotate the rotary rotor are rotating blades attached to the tip of the rotary shaft of the fuel feed shaft of the fuel transfer section. The rotary rooster is rotated on the fixed rooster by pushing and rotating the rotary rooster hook provided at the lower portion of the rooster.
(3) The combustion apparatus of the present invention is the combustion apparatus according to the above (1) or (2), wherein the clinker removing apparatus includes a vertical bar fixed to a rotating rooster and extending upward, and a vertical bar extending horizontally from a tip of the vertical bar. A first horizontal bar, and a second horizontal bar extending in the horizontal direction by changing the angle from the tip of the first horizontal bar,
A clinker removing member is suspended from the second horizontal bar and rotates together with the rotating rooster to remove the clinker of the fixed rooster.
　本発明によれば、ペレット状などの固形燃料をロストル部の裏面側から押し上げてロストル上に盛り上げるようにしているので、ロストル部の開口部に燃焼カスなどのクリンカーなどで閉塞されることがなく、燃焼性を常時一定に保持させことができると共に、メンテナンス性にも優れている。
　また、回転ロストル上にクリンカー除去装置を備えているので、ロストル上にクリンカーが一定以上の大きさに成長して固着するのを防止して、ロストル上で燃焼されるペレット状などの固形燃料を常時適正に維持させることができる。 According to the present invention, since solid fuel such as pellets is pushed up from the back side of the rooster part and swelled on the rooster, the opening part of the rooster part is not blocked by a clinker such as combustion residue. In addition, the combustibility can be kept constant at all times, and the maintainability is excellent.
In addition, since a clinker removing device is provided on the rotating rooster, it prevents the clinker from growing and sticking to a certain size or more on the rooster, so that solid fuel such as pellets burned on the rooster can be obtained. It can be maintained properly at all times.
本発明の実施形態に係る燃焼装置の概略斜視図である。1 is a schematic perspective view of a combustion apparatus according to an embodiment of the present invention. ロストル部の拡大斜視図である。It is an expansion perspective view of a rooster part. ロストル部の分解斜視図である。It is a disassembled perspective view of a rooster part. クリンカー除去装置の概略説明図である。It is a schematic explanatory drawing of a clinker removal apparatus. 燃料搬送部の説明断面図である。It is explanatory sectional drawing of a fuel conveyance part. （ａ）ロストル部における燃料搬送状態を説明する説明断面図である。（ｂ）回転ロストルを回転させる回転駆動機構を説明する説明図である。(A) It is explanatory sectional drawing explaining the fuel conveyance state in a rooster part. (B) It is explanatory drawing explaining the rotational drive mechanism which rotates a rotation rooster. 本発明の実施の形態に係る燃焼装置の使用態様を説明する概略断面図である。It is a schematic sectional drawing explaining the usage condition of the combustion apparatus which concerns on embodiment of this invention.
　図１の概略斜視図、図２の拡大斜視図、図３の分解斜視図に図示するように、本実施の形態の燃焼装置１０は、ペレット状や塊状の固形燃料がその内部に設けられた螺旋状の燃料送りシャフトの回転により水平方向に押し出されて搬送される燃料搬送部１１と、燃料送りシャフト先端部側から垂直上向きに開口して形成された燃料搬送部の燃料排出部１２と、燃料排出部１２に取り付けられ固形燃料がその開口部を介して押し上げられ燃焼されるロストル部１３と、を備えている。
　ロストル部１３は、燃料搬送部１１の先側に上向きに開口した燃料排出部１２に取り付けられた基盤１２ａと、基盤１２ａ上に固定され固形燃料が押し上げられて通過する開口部１３ａを備えた略円錐状の固定ロストル１３ｄと、固定ロストル１３ｄ上に回転自在に載置される回転ロストル１３ｅとを備えている。 As shown in the schematic perspective view of FIG. 1, the enlarged perspective view of FIG. 2, and the exploded perspective view of FIG. 3, the combustion apparatus 10 of the present embodiment is provided with pellet-like or massive solid fuel therein. A fuel transport unit 11 that is pushed and transported in the horizontal direction by the rotation of the spiral fuel feed shaft; a fuel discharge unit 12 of the fuel transport unit that is formed to open vertically upward from the front end of the fuel feed shaft; A rooster part 13 attached to the fuel discharge part 12 and solid fuel is pushed up through the opening and burned.
The rooster 13 is an abbreviation provided with a base 12a attached to a fuel discharge part 12 opened upward on the front side of the fuel transport part 11, and an opening 13a fixed on the base 12a and through which solid fuel is pushed up. A conical fixed rooster 13d and a rotating rooster 13e that is rotatably mounted on the fixed rooster 13d are provided.
　また、ロストル部１３は、全体が略円錐状に形成された耐熱鋳物などからなり、燃料搬送部１１から押し上げられる固形燃料が通過する開口を有した開口部１３ａをその面上に備えている。
　ロストル部１３は、その頂部が上方向へ向けた略円錐形状をしていることから、空気孔１３ｆを設けた燃焼部分の面積を広くとれ、クリンカーをこの燃焼部分を形成する傾斜面１３ｋに沿って周縁外方へ落下させながら燃焼を継続させることができる。
なお、クリンカーとは、燃焼灰が溶融して固形化したものをいう。 The rooster portion 13 is made of a heat-resistant casting or the like formed in a substantially conical shape as a whole, and has an opening portion 13a having an opening through which the solid fuel pushed up from the fuel transport portion 11 passes.
Since the top portion of the rooster portion 13 has a substantially conical shape directed upward, the area of the combustion portion provided with the air holes 13f can be widened, and the clinker is formed along the inclined surface 13k forming the combustion portion. Combustion can be continued while dropping outward.
The clinker refers to a solidified product of combustion ash.
　また、ロストル部１３は、固定ロストル１３ｄの周縁上部に回転自在に配設されるリング状の回転ロストル１３ｅを回転させるロストル回転羽根２０と、を備えている。
　ロストル回転羽根２０は、燃料搬送部１１の燃料送りシャフトの軸部１１ｃの先端部に取付けられた回転羽根２１と、回転ロストル１３ｅ下部に設けられている回転ロストルフック１３ｃと、を有して構成される。 Moreover, the rooster part 13 is provided with the rooster rotary blade | wing 20 which rotates the ring-shaped rotary rooster 13e arrange | positioned rotatably at the peripheral upper part of the fixed rooster 13d.
The rooster rotary blade 20 includes a rotary vane 21 attached to the tip of the shaft portion 11c of the fuel feed shaft of the fuel transport unit 11, and a rotary rooster hook 13c provided below the rotary rooster 13e. Is done.
　回転羽根２１は燃料送りシャフト１１ｂの先端側に同軸に固定された棒状の回転体であり、燃料送りシャフト１１ｂに同期して回転する回転羽根２１の先部が回転ロストルフック１３ｃの側壁に当接して、所定角度分ずつ回転ロストル１３ｅを固定ロストル１３ｄ上で回転させるようになっている。
　すなわち、回転羽根２１が、円錐状に形成した回転ロストル１３ｅの下端円周部に等間隔に複数配置されている回転ロストルフック１３ｃを押し回すことによって、固定ロストル上において回転ロストル１３ｅを回転させる。 The rotary blade 21 is a rod-like rotary body that is coaxially fixed to the tip end side of the fuel feed shaft 11b, and the tip of the rotary blade 21 that rotates in synchronization with the fuel feed shaft 11b abuts against the side wall of the rotary rooster hook 13c. Thus, the rotation rooster 13e is rotated on the fixed rooster 13d by a predetermined angle.
That is, the rotary vane 21 rotates the rotary rooster 13e on the fixed rooster by pushing around a plurality of rotary rooster hooks 13c arranged at equal intervals around the lower circumferential portion of the rotary rooster 13e formed in a conical shape.
　このロストル回転羽根２０による回転ロストル１３ｅの回転に伴って、回転ロストル１３ｅの内側に形成されその中心方向に張り出した回転ロストル爪２６と、固定ロストル１３ｄ上の一部分が上方に突出して形成された固定ロストル爪２７と、の間に形成された隙間２８（図４（ｂ）参照）に燃焼カス（クリンカー）を導入して、両ロストル爪２６，２７によって挟んで粉砕し、小片（クリンカー小片）とすることができる。 Along with the rotation of the rotating rooster 13e by the rooster rotating blade 20, the rotating rooster claw 26 that is formed inside the rotating rooster 13e and projects in the center direction thereof, and a fixed portion formed so that a part on the fixed rooster 13d protrudes upward. Combustion residue (clinker) is introduced into a gap 28 (see FIG. 4B) formed between the rooster claw 27 and crushed by being sandwiched by both rooster claws 26, 27, and a small piece (clinker small piece) can do.
　次に、図３のロストル部分解斜視図、図４のクリンカー除去装置概略説明図、図５の燃料搬送部の説明断面図、図６（ａ）のロストル部における燃料搬送状態を説明する説明断面図、（ｂ）の回転ロストルを回転させる回転駆動機構説明図を参照しながら、クリンカー除去装置を説明する。
　図示するように、ロストル部１３の上部には、回転ロストル１３ｅとともに回転するクリンカー除去装置３０が固着されており、粉砕された小片をロストル部１３の外周縁から除去するようにしている。 Next, an exploded perspective view of the rooster part of FIG. 3, a schematic explanatory view of the clinker removing device of FIG. 4, an explanatory cross-sectional view of the fuel transfer part of FIG. 5, and an explanatory cross-section for explaining the fuel transfer state in the rooster part of FIG. The clinker removing device will be described with reference to the explanatory diagram of the rotational drive mechanism for rotating the rotational rooster in FIG.
As shown in the drawing, a clinker removing device 30 that rotates together with the rotating rooster 13 e is fixed to the upper portion of the rooster portion 13, and the crushed small pieces are removed from the outer peripheral edge of the rooster portion 13.
　クリンカー除去装置３０には、回転ロストル１３ｅに固定され上方に延伸する垂直棒３１と、垂直棒の先端から水平方向に延伸する第１水平棒３２と、第１水平棒３２の先端から角度を変えて水平方向に延伸する第２水平棒３３と、を備え、前記第２水平棒３３には、固定ロストル１３ｄのクリンカーを除去するための部材が垂下して取り付けられている。
　すなわち、第１の部材として、第２水平棒３３の先端（固定ロストルの外縁方向）にクリンカー除去部材３４が取り付けられ、第２の部材として、第１水平棒の取り付け位置近傍にクリンカー除去板３５が取り付けられている。 The clinker removing device 30 includes a vertical bar 31 fixed to the rotating rooster 13e and extending upward, a first horizontal bar 32 extending horizontally from the tip of the vertical bar, and an angle from the tip of the first horizontal bar 32. And a second horizontal bar 33 extending horizontally. A member for removing the clinker of the fixed rooster 13d is suspended from the second horizontal bar 33 and attached thereto.
That is, the clinker removing member 34 is attached to the tip of the second horizontal bar 33 (in the direction of the outer edge of the fixed rooster) as the first member, and the clinker removing plate 35 near the attachment position of the first horizontal bar as the second member. Is attached.
　クリンカー除去部材３４は、固定ロストル１３ｄに固着滞留したクリンカーをかき混ぜる役割をし、クリンカー除去板３５は、かき混ぜられたクリンカーを固定ロストル１３ｄの外縁から外に排出して、固定ロストル１３ｄのクリンカーを除去する役割をする。
　このように、回転ロストル１３ｅ上にクリンカー除去装置３０を備えているので、固形燃料が燃焼した後に固定ロストル１３ｄ上に固着滞留したクリンカーを砕き、排出させ、固形燃料の連続的な燃焼を安定して維持することができる。 The clinker removing member 34 plays a role of stirring the clinker fixed and staying on the fixed rooster 13d, and the clinker removing plate 35 discharges the mixed clinker from the outer edge of the fixed rooster 13d to remove the clinker of the fixed rooster 13d. To play a role.
As described above, since the clinker removing device 30 is provided on the rotating rooster 13e, the clinker adhering and staying on the fixed rooster 13d after the solid fuel burns is crushed and discharged, and the continuous combustion of the solid fuel is stabilized. Can be maintained.
　燃料搬送部１１は、燃料送りシャフト１１ｂを回転させて固形燃料をロストル部１３の裏面側から押し上げることによって、固形燃料を固定ロストル１３ｄ上面に盛り上げるようにしているので、ロストル部１３の開口部１３ａを通過する固形燃料の流れによって、この開口部１３ａにクリンカーや未燃焼分などが付着してで閉塞されることがなく燃焼性を常時一定に保持させると共に、ロストル部１３の清掃などにかかるメンテナンスを省略できる。 Since the fuel transport unit 11 rotates the fuel feed shaft 11b to push up the solid fuel from the back side of the rooster portion 13, the solid fuel is raised on the upper surface of the fixed rooster 13d. The flow of solid fuel that passes through the flank keeps the flammability constant at all times without being clogged by the clinker or unburned matter adhering to the opening 13a, and maintenance for the cleaning of the rooster portion 13, etc. Can be omitted.
　また、燃料搬送部１１は、その略円筒状容器の中央にスチール製等のスクリュー羽根を備えた燃料送りシャフト１１ｂが配置され、この燃料送りシャフト１１ｂを駆動させる電動モータ２２などの駆動部と、円筒状容器の基端側に連設された燃料ホッパ１７などを有しており、駆動部に接続された制御部によりロストル部１３に供給される固形燃料の供給、供給量、オンオフなどの操作が制御できるようになっている。 The fuel transport unit 11 includes a fuel feed shaft 11b provided with a screw blade made of steel or the like at the center of the substantially cylindrical container, and a drive unit such as an electric motor 22 that drives the fuel feed shaft 11b. It has a fuel hopper 17 or the like continuously provided on the base end side of the cylindrical container, and operations such as supply of solid fuel supplied to the rooster part 13 by a control unit connected to the drive unit, supply amount, on / off operation, etc. Can be controlled.
　以上のように構成された実施形態の燃焼装置１０の動作について説明する。
まず、燃料ホッパ１７に予め所定量の固形燃料を貯留して、電動モータ２２を起動して燃料送りシャフト１１ｂを回転させ、燃料ホッパ１７の底部から供給されるペレット燃料を軸部１１ｃに沿う水平方向に押し出す。
　これによって、ロストル部１３から下部の円筒状ケーシング１１ａ内が固形燃料で充填された状態に保持させると共に、燃焼用空気の送風機１８を作動させ、固定ロストル１３ｄの空気孔１３ｆから燃焼用空気を吐出し、ロストル部１３の上部に押し上げられた固形燃料を燃焼させる。 Operation | movement of the combustion apparatus 10 of embodiment comprised as mentioned above is demonstrated.
First, a predetermined amount of solid fuel is stored in the fuel hopper 17 in advance, the electric motor 22 is activated to rotate the fuel feed shaft 11b, and the pellet fuel supplied from the bottom of the fuel hopper 17 is horizontally aligned along the shaft portion 11c. Extrude in the direction.
As a result, the inside of the lower cylindrical casing 11a is held in a state filled with solid fuel from the rooster portion 13, and the blower 18 for combustion air is operated to discharge the combustion air from the air hole 13f of the fixed rooster 13d. Then, the solid fuel pushed up at the upper part of the rooster 13 is burned.
　さらに、本実施形態の燃焼装置は、図７に示すように、ロストル部１３に供給される固形燃料の供給量を、缶体２３に設けたサーモセンサ２５の検知信号に基づいて制御して、ロストル部１３上の燃焼状態をＯＮ・ＯＦＦ制御させることもできる。
　また、逆火防止サーモセンサ２９を備えて逆火防止機能を備えることもできる。この場合は、燃料搬送部１１内の円筒状ケーシング１１ａの上流端側に逆火防止サーモセンサ２９を備え、ロストル部１３上の種火が円筒状ケーシング１１ａ内に移動したときに、逆火防止サーモセンサ２９が規定温度以上を検知し、逆火防止サーモセンサ２９からの検知信号に基づいて燃料送りシャフト１１ｂの回転させ、燃料をロストル部１３側に押し上げ、燃焼用空気を送り燃焼させることにより逆火を防止することができる。
　また、逆火防止サーモセンサ２９を備えることにより、燃料搬送部１１に接続された燃料ホッパ１７などに火が移ったり、燃料送りシャフト１１ｂなどが熱で損傷したりするのを未然に防止でき、安全性に優れた燃焼装置を提供できる。
　このような燃焼状態を制御することにより、連続運転を容易かつ安全に行うことができ、その稼働効率を大幅に向上させることができる。 Furthermore, as shown in FIG. 7, the combustion apparatus of the present embodiment controls the supply amount of the solid fuel supplied to the rooster portion 13 based on the detection signal of the thermosensor 25 provided in the can body 23, ON / OFF control of the combustion state on the rooster 13 can also be performed.
Further, a backfire prevention thermosensor 29 may be provided to provide a backfire prevention function. In this case, a backfire prevention thermosensor 29 is provided on the upstream end side of the cylindrical casing 11a in the fuel transfer section 11, and the backfire prevention is performed when the seed fire on the rooster section 13 moves into the cylindrical casing 11a. The thermosensor 29 detects a specified temperature or higher, rotates the fuel feed shaft 11b based on the detection signal from the backfire prevention thermosensor 29, pushes up the fuel to the rooster portion 13, and feeds and burns combustion air. Backfire can be prevented.
In addition, by providing the backfire prevention thermosensor 29, it is possible to prevent the fire from being transferred to the fuel hopper 17 connected to the fuel transfer unit 11 or the fuel feed shaft 11b from being damaged by heat. A combustion apparatus with excellent safety can be provided.
By controlling such a combustion state, continuous operation can be performed easily and safely, and the operating efficiency can be greatly improved.
　また、図７に示すように、図１に示す燃焼装置１０を出し入れ可能に内蔵して固形燃料を燃焼させて燃焼ガスを発生させる燃焼室１４と、燃焼ガスがその円筒状ガス流路に供給され外周囲を流れるガスや水と熱交換されて外部に排出される煙管部１５と、を備えることもできる。
　これによって、ロストル部１３における燃焼熱を効率的に回収でき熱回収性に優れると共に、ロストル部１３を燃焼室１４から引き出して広いスペースのもとで容易に清掃や整備を行うことができメンテナンス性に優れている。
　なお、燃焼室１４は、円筒容器状などに形成され、ロストル部１３上の固形燃料を所定の燃焼状態で燃焼させるようにしている。
　煙管部１５は、多数のパイプ配管１５ａで構成され、燃焼室１４で発生した高温の燃焼ガスがこのパイプ配管１５ａの円筒状ガス流路に供給され、パイプ配管の外側に供給される水やガスを加熱することができるようにしている。 In addition, as shown in FIG. 7, the combustion apparatus 10 shown in FIG. 1 is built in so as to be able to be taken in and out, a combustion chamber 14 for burning solid fuel to generate combustion gas, and the combustion gas is supplied to the cylindrical gas flow path. It is also possible to provide a smoke pipe section 15 that is subjected to heat exchange with gas or water flowing around the outside and discharged to the outside.
As a result, the combustion heat in the rooster portion 13 can be efficiently recovered and heat recovery is excellent, and the rooster portion 13 is pulled out from the combustion chamber 14 and can be easily cleaned and maintained in a large space. Is excellent.
In addition, the combustion chamber 14 is formed in a cylindrical container shape or the like, and the solid fuel on the rooster portion 13 is burned in a predetermined combustion state.
The smoke pipe section 15 is composed of a large number of pipe pipes 15a, and high-temperature combustion gas generated in the combustion chamber 14 is supplied to the cylindrical gas flow path of the pipe pipe 15a, and water and gas supplied to the outside of the pipe pipes. To be able to heat.
　本発明の燃焼装置は、ロストル部におけるクリンカーの発生や蓄積を抑制してペレット状などの固形燃料の燃焼状態を向上でき、また、燃焼後の燃焼カスなどのクリンカーが固形化してロストル部に固着することを防止し、燃焼性とメンテナンス性に優れているので、産業上の利用可能性が高い。 The combustion apparatus of the present invention can improve the combustion state of solid fuel such as pellets by suppressing the generation and accumulation of clinker in the rooster part, and the clinker such as combustion debris after combustion solidifies and adheres to the rooster part It has high flammability and maintainability, so it has high industrial applicability.
１０：燃焼装置
１１：燃料搬送部
１１ａ：円筒状ケーシング
１１ｂ：燃料送りシャフト
１１ｃ：軸部
１２：燃料排出部
１２ａ：基盤
１３：ロストル部
１３ａ：開口部
１３ｃ：回転ロストルフック
１３ｄ：固定ロストル
１３ｅ：回転ロストル
１３ｆ：空気孔
１３ｋ：傾斜面
１４：燃焼室
１５：煙管部
１５ａ：パイプ配管
１７：燃料ホッパ
１８：送風機
２０：ロストル回転羽根
２１：回転羽根
２２：電動モータ
２３：缶体
２５：サーモセンサ
２６：回転ロストル爪
２７：固定ロストル爪
２８：隙間
２９：逆火防止サーモセンサ
３０：クリンカー除去装置
３１：垂直棒
３２：第１水平棒
３３：第２水平棒
３４：クリンカー除去部材
３５：クリンカー除去板 10: Combustion device 11: Fuel transfer section 11a: Cylindrical casing 11b: Fuel feed shaft 11c: Shaft section 12: Fuel discharge section 12a: Base 13: Rooster section 13a: Opening section 13c: Rotating rooster hook 13d: Fixed rooster 13e: Rotating rooster 13f: Air hole 13k: Inclined surface 14: Combustion chamber 15: Smoke pipe portion 15a: Pipe pipe 17: Fuel hopper 18: Blower 20: Rooster rotor blade 21: Rotating blade 22: Electric motor 23: Can body 25: Thermo sensor 26: Rotating rooster claw 27: Fixed rooster claw 28: Clearance 29: Backfire prevention thermosensor 30: Clinker removal device 31: Vertical bar 32: First horizontal bar 33: Second horizontal bar 34: Clinker removal member 35: Clinker removal Board

Claims (3)

  1. ペレット状や塊状の固形燃料がその内部に設けられた螺旋状の燃料送りシャフトの回転により水平方向に押し出されて搬送される燃料搬送部と、
    前記燃料送りシャフト先端部側から垂直上向きに開口して形成された前記燃料搬送部の燃料排出部と、
    前記燃料排出部に取り付けられ前記固形燃料がその開口部を介して押し上げられ燃焼されるロストル部と、を備え、
    前記ロストル部が、
    前記燃料排出部に取り付けられる略円錐状の固定ロストルと、
    前記固定ロストルの周縁上部に回転自在に配設される回転ロストルと、
    前記回転ロストルを回転させるロストル回転羽根と、を備えており、
    前記回転ロストルの内側には、中心方向に張り出した回転ロストル爪が形成され、
    前記固定ロストル上には一部分が上方に突出した固定ロストル爪が形成され、
    前記ロストル回転羽根による回転ロストルの回転に伴って、
    前記固定ロストル爪と回転ロストル爪との間でクリンカーを挟んで粉砕して小片とし、
    前記回転ロストル上に固着され回転ロストルとともに回転するクリンカー除去装置によって、
    前記小片をロストル部の外周縁から除去するようにしたことを特徴とする燃焼装置。     A fuel conveying unit in which pellet-like or lump solid fuel is pushed and conveyed in the horizontal direction by rotation of a helical fuel feed shaft provided therein;
    A fuel discharge part of the fuel transfer part formed by opening vertically upward from the fuel feed shaft tip part side;
    A rooster part attached to the fuel discharge part and the solid fuel is pushed up through the opening and burned,
    The rooster part is
    A substantially conical fixed rooster attached to the fuel discharge part;
    A rotating rooster that is rotatably disposed at the upper peripheral edge of the fixed rooster;
    A rooster rotary blade for rotating the rotary rooster,
    Inside the rotation rooster, a rotation rooster claw protruding in the center direction is formed,
    A fixed rooster claw partially protruding upward is formed on the fixed rooster,
    Along with the rotation of the rotary rooster by the rooster rotary blade,
    Crush the clinker between the fixed rooster claw and the rotating rooster claw to make small pieces,
    By the clinker removing device fixed on the rotating rooster and rotating together with the rotating rooster,
    A combustion apparatus characterized in that the small piece is removed from the outer periphery of the rooster.
  2. 前記回転ロストルを回転させるロストル回転羽根は、
    前記燃料搬送部の燃料送りシャフトの回転軸の先端部に取付けられた回転羽根が、
    回転ロストルの下部に設けられた回転ロストルフックを押し回すことによって、
    固定ロストル上において回転ロストルを回転させることを特徴とする請求項１記載の燃焼装置。     Rostor rotary blades for rotating the rotary rooster,
    A rotating blade attached to the tip of the rotating shaft of the fuel feed shaft of the fuel transfer section,
    By pushing around the rotating rooster hook provided at the bottom of the rotating rooster,
    2. The combustion apparatus according to claim 1, wherein the rotating rooster is rotated on the fixed rooster.
  3. 前記クリンカー除去装置は、
    回転ロストルに固定され上方に延伸する垂直棒と、
    垂直棒の先端から水平方向に延伸する第１水平棒と、
    第１水平棒の先端から角度を変えて水平方向に延伸する第２水平棒と、を備え、
    前記第２水平棒には、クリンカー除去部材が垂下して取り付けられており、
    前記回転ロストルとともに回転して、
    固定ロストルのクリンカーを除去をするようにしたことを特徴とする請求項１又は２記載の燃焼装置。     The clinker removing device is
    A vertical bar fixed to the rotating rooster and extending upward;
    A first horizontal bar extending horizontally from the tip of the vertical bar;
    A second horizontal bar extending in a horizontal direction at a different angle from the tip of the first horizontal bar,
    A clinker removing member is attached to the second horizontal bar in a hanging manner,
    Rotating with the rotating rooster,
    The combustion apparatus according to claim 1 or 2, wherein the clinker of the fixed rooster is removed.
PCT/JP2014/071300 2014-08-12 2014-08-12 Combustion device WO2016024328A1 (en)

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RU183126U1 (en) * 2018-06-07 2018-09-11 Общество с ограниченной ответственностью Торгово-промышленная компания "Красноярскэнергокомплект" FUEL FEEDING DEVICE WITH ROTARY ROTOR BURNER

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Publication number Priority date Publication date Assignee Title
KR20210156657A (en) * 2020-06-18 2021-12-27 대한민국(농촌진흥청장) Combustion Furnace Comprising Clinker Removal Devices
KR102387418B1 (en) * 2020-06-18 2022-04-15 대한민국 Combustion Furnace Comprising Clinker Removal Devices

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