JP2010285467A - Carbonization furnace recycling system - Google Patents

Carbonization furnace recycling system Download PDF

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JP2010285467A
JP2010285467A JP2009138017A JP2009138017A JP2010285467A JP 2010285467 A JP2010285467 A JP 2010285467A JP 2009138017 A JP2009138017 A JP 2009138017A JP 2009138017 A JP2009138017 A JP 2009138017A JP 2010285467 A JP2010285467 A JP 2010285467A
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carbonization furnace
carbonization
furnace
raw material
combustion
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Yuichi Ishii
井 裕 一 石
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KINBOSHI KK
Kinboshi Inc
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KINBOSHI KK
Kinboshi Inc
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/78—Recycling of wood or furniture waste

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  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Coke Industry (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbonization furnace recycling system that achieves both material recycle and energy recycle by obtaining a carbonized product by carbonizing organic waste and by effectively utilizing a flammable gas exhausted on carbonization. <P>SOLUTION: The carbonization furnace recycling system 1 includes at least a raw material-feeding means 3 for feeding the organic waste as a raw material to a carbonization furnace 2, the carbonization furnace 2 for subjecting the organic waste to a carbonization treatment to obtain the carbonized product, a combustion furnace 12 constituted integrally with or independently of the carbonization furnace 2 for burning a pyrolyzed gas generated by the carbonization treatment, an external combustion engine 32 driven by the heat generated from the combustion furnace 12, a generator 33 generating electricity by the external combustion engine 32, wherein the electric power generated by the generator 33 is supplied to the raw material-feeding means 3 or other power-consuming apparatuses. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、木綿、麻、ウール、化学繊維等からなる衣服廃材や廃棄された弁当等の食品残渣、木片や木皮等の木質系廃棄物、有機物の汚泥、プラスチック系廃棄物等の有機廃棄物を炭化して炭化物を得るとともに、炭化処理の際に排出される可燃性ガスを有効利用することにより、マテリアルリサイクルとエネルギーリサイクルとの両方が可能な炭化炉リサイクルシステムに関する。   The present invention includes clothes waste materials made of cotton, hemp, wool, chemical fibers, etc., food residues such as discarded lunch boxes, woody waste such as wood chips and bark, organic waste such as sludge of organic matter, plastic waste, etc. It is related with the carbonization furnace recycle system which can perform both material recycling and energy recycling by carbonizing the carbon and obtaining a carbide | carbonized_material, and making effective use of the combustible gas discharged | emitted in the carbonization process.

従来、工場や処分場から排出される衣服廃棄物や廃棄された弁当等の食品残渣等の有機廃棄物は、焼却炉で燃焼されてその廃熱により発電等を行うエネルギーリサイクルが行われていたが、焼却灰は最終処分場に廃棄されていた。一方、建築廃材や間伐材をはじめとする木質系の産業廃棄物は、炭化炉での炭化処理により炭としてマテリアルリサイクルが可能であると同時に、炭化処理中に発生する熱分解ガスを可燃ガスとして利用できるためエネルギーリサイクルも可能である。例えば、特開２００３−２５３２７８号公報（特許文献１）には、炭化処理の際に発生する木炭ガスを利用して発電する木炭製造装置が提案されている。   Conventionally, organic waste such as clothing waste discharged from factories and disposal sites and food residues such as discarded lunch boxes has been subjected to energy recycling that is burned in an incinerator and generates power using the waste heat. However, the incinerated ash was discarded at the final disposal site. On the other hand, wood-based industrial waste such as construction waste and thinned wood can be recycled as charcoal by carbonization in a carbonization furnace, and at the same time, pyrolysis gas generated during carbonization is used as combustible gas. Since it can be used, energy recycling is also possible. For example, Japanese Patent Laid-Open No. 2003-253278 (Patent Document 1) proposes a charcoal manufacturing apparatus that generates power using charcoal gas generated during carbonization.

ところで、弁当等の食品残渣を廃棄する際に、エネルギーリサイクルだけでなく、炭へのマテリアルリサイクルを行うためには、炭化処理の際に外部からエネルギーを補充する必要がある。すなわち、被炭化物である食品残渣は多量の水分を含むため、炭化処理に際して、水分を除去あるいは低減する必要があるため、炭化処理に伴う追加のエネルギーを必要とする。   By the way, when discarding food residues such as lunch boxes, it is necessary to replenish energy from the outside during carbonization in order to perform not only energy recycling but also material recycling to charcoal. That is, since the food residue which is to be carbonized contains a large amount of moisture, it is necessary to remove or reduce the moisture during the carbonization treatment, so that additional energy is required for the carbonization treatment.

上記の問題に対し、特開２００３−１４５１１６号公報（特許文献２）には、高含水廃棄物を炭化処理する際に、炭化炉から排出されるガスをガスタービンの燃料として用い、ガスタービンから発生する高温の燃焼ガスを高含水廃棄物の乾燥に利用した処理装置が提案されている。   In response to the above problem, Japanese Patent Application Laid-Open No. 2003-145116 (Patent Document 2) uses a gas discharged from a carbonization furnace as a fuel for a gas turbine when carbonizing high water content waste. A treatment apparatus has been proposed that uses the generated high-temperature combustion gas to dry highly-hydrated waste.

また、本発明者らは特開２００５−１２０３００号公報（特許文献３）において、炭化処理の際の熱効率を高めるとともに、炭化処理によって発生するタール分や排ガスの効率的処理を行うことができる炭化炉を提案している。   In addition, in the Japanese Patent Application Laid-Open No. 2005-120300 (Patent Document 3), the present inventors have improved the thermal efficiency during carbonization treatment, and can perform carbonization that can efficiently treat tar components and exhaust gas generated by the carbonization treatment. A furnace is proposed.

特開２００３−２５３２７８号公報JP 2003-253278 A 特開２００３−１４５１１６号公報JP 2003-145116 A 特開２００５−１２０３００号公報JP-A-2005-120300

本発明者らは、今般、木綿、麻、ウール、化学繊維等からなる衣服廃材や廃棄された弁当等の食品残渣、木片や木皮等の等の木質系廃棄物、有機物の汚泥、プラスチック系廃棄物等の有機廃棄物を炭化処理して活性炭等の炭材料としてリサイクルするとともに、その炭化処理工程において発生する排ガスからの熱を電気エネルギーとしてリサイクルすることにより、マテリアルリサイクルとエネルギーリサイクルとの両方が可能であるとともに、炭化処理に要する全体的なエネルギーコストも低減できる、との知見を得た。本発明はかかる知見によるものである。   The present inventors have recently released clothing waste materials such as cotton, hemp, wool, chemical fiber, etc., food residues such as discarded lunch boxes, wooden waste such as wood chips and bark, organic sludge, plastic waste Carbonization of organic waste such as waste and recycling it as charcoal material such as activated carbon, and by recycling the heat from the exhaust gas generated in the carbonization process as electrical energy, both material recycling and energy recycling It has been found that this is possible and the overall energy cost required for carbonization can be reduced. The present invention is based on this finding.

したがって、本発明の目的は、有機廃棄物を炭化処理する際に炭化炉から発生する熱分解ガスを可燃性ガスとして利用して外燃機関による発電を行い、得られた電力を炭化炉の運転等に利用することにより、マテリアルリサイクルとエネルギーリサイクルとの両方が可能であるとともに、炭化処理に要する全体的なエネルギーコストも低減できる炭化炉リサイクルシステムを提供することにある。   Therefore, an object of the present invention is to generate power by an external combustion engine using pyrolysis gas generated from a carbonization furnace as a combustible gas when carbonizing organic waste, and use the obtained electric power for the operation of the carbonization furnace. It is intended to provide a carbonization furnace recycling system that can perform both material recycling and energy recycling and reduce the overall energy cost required for carbonization treatment.

そして、本発明による炭化炉リサイクルシステムは、原料である有機廃棄物を炭化炉へ供給する原料供給手段と、前記有機廃棄物を炭化処理して炭化物を得る炭化炉と、前記炭化炉と一体に、または独立に構成され、前記炭化処理の際に発生する熱分解ガスを燃焼させる燃焼炉と、前記燃焼炉から発生した熱により駆動する外燃機関と、前記外燃機関により発電する発電機と、を少なくとも備え、前記発電機から発電された電力が、原料供給手段またはその他の電力消費装置へ供給されることを特徴とするものである。   The carbonization furnace recycling system according to the present invention includes a raw material supply means for supplying organic waste as a raw material to the carbonization furnace, a carbonization furnace for carbonizing the organic waste to obtain a carbide, and the carbonization furnace integrally. Or a combustion furnace configured to burn pyrolysis gas generated during the carbonization treatment, an external combustion engine driven by heat generated from the combustion furnace, and a generator that generates electric power from the external combustion engine The power generated from the generator is supplied to the raw material supply means or other power consuming device.

また、本発明の態様においては、前記原料供給手段が、前記発電機から発電された電力により駆動することが好ましい。   Moreover, in the aspect of this invention, it is preferable that the said raw material supply means drives with the electric power generated from the said generator.

また、本発明の態様においては、前記炭化炉は、炭化炉で生成した炭化物を外部へ取り出す炭化物取出手段を備え、前記炭化物取出手段が前記発電機から発電された電力により駆動することが好ましい。   In the aspect of the present invention, it is preferable that the carbonization furnace includes a carbide extraction unit that extracts the carbide generated in the carbonization furnace to the outside, and the carbide extraction unit is driven by electric power generated from the generator.

また、本発明の態様においては、前記外燃機関がスターリングエンジンであることが好ましい。   Moreover, in the aspect of this invention, it is preferable that the said external combustion engine is a Stirling engine.

また、本発明の態様においては、前記炭化炉は、原料の部分燃焼による自己熱を使用した自燃式炭化炉であることが好ましい。   Moreover, in the aspect of this invention, it is preferable that the said carbonization furnace is a self-combustion type carbonization furnace using the self-heat by the partial combustion of a raw material.

さらに、本発明の態様においては、前記有機廃棄物が、衣服廃材、木質系およびプラスチック系有機廃棄物、有機物の汚泥、ならびに食品残渣であることが好ましい。   Furthermore, in the aspect of the present invention, the organic waste is preferably clothes waste material, woody and plastic organic waste, organic sludge, and food residue.

本発明による炭化炉リサイクルシステムは、今般、木綿、麻、ウール、化学繊維等からなる衣服廃材や廃棄された弁当等の食品残渣、木片や木皮等の等の木質系廃棄物、有機物の汚泥、プラスチック系廃棄物等の有機廃棄物等を炭化処理により炭として再生するとともに、炭化処理の際に炭化炉から発生する熱分解ガスを可燃性ガスとして利用して外燃機関による発電を行い、得られた電力を炭化炉等の運転に利用することにより、マテリアルリサイクルとエネルギーリサイクルとの両方が可能である。   The carbonization furnace recycling system according to the present invention is now a waste material such as cotton, hemp, wool, chemical fiber, food residue such as discarded lunch boxes, woody waste such as wood fragments and bark, organic sludge, Organic waste such as plastic waste is regenerated as charcoal by carbonization, and heat generated from the carbonization furnace during carbonization is used as flammable gas to generate power from an external combustion engine. By using the generated electric power for the operation of a carbonization furnace or the like, both material recycling and energy recycling are possible.

本発明による炭化炉リサイクルシステムの全体を示す概念図であるIt is a conceptual diagram which shows the whole carbonization furnace recycle system by this invention. 炭化炉リサイクルシステムに用いられる炭化炉を示す概念図である。It is a conceptual diagram which shows the carbonization furnace used for a carbonization furnace recycling system.

以下、本発明の実施形態を図面を参照しながら、より詳細に説明する。   Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.

図１は、本発明による炭化炉リサイクルシステム１の全体を示す概念図である。炭化炉２には、押出シリンダー４を備えた原料投入手段３が連結しており、押出シリンダー４が炭化炉方向へ移動して原料を搬送できるようになっている。木綿、麻、ウール、化学繊維等からなる使用済みの衣服廃材、廃棄された弁当等の食品残渣、古紙、木片、木皮、竹、ヤシガラ等の木質系廃棄物、有機物の汚泥、プラスチック系廃棄物等の有機廃棄物は、炭の原料として、原料投入口５へ投入されて、押出シリンダー４の移動により、炭化炉２内へ投入される。原料である有機廃棄物を炭化炉に投入する際に、含水率が高い原料（例えば弁当等の食品残渣）と含水量が少なくかつ吸水量が大きい衣服等とを混合することにより、原料全体の含水量が均一化される。そのため、高含水量の原料であってもそのまま炭化炉に投入することができ、予備乾燥等の手間を省くことができる。   FIG. 1 is a conceptual diagram showing an entire carbonization furnace recycling system 1 according to the present invention. The carbonization furnace 2 is connected to a raw material charging means 3 having an extrusion cylinder 4 so that the extrusion cylinder 4 can move in the direction of the carbonization furnace to convey the raw material. Used clothing waste made of cotton, hemp, wool, chemical fiber, etc., food residues such as discarded lunch boxes, waste paper, wood chips, bark, bamboo, coconut shells and other wooden waste, organic sludge, plastic waste The organic waste such as is fed into the raw material charging port 5 as a raw material for charcoal, and then is moved into the carbonization furnace 2 by the movement of the extrusion cylinder 4. When putting organic waste, which is a raw material, into a carbonization furnace, mixing raw materials with a high water content (for example, food residues such as lunch boxes) with clothes that have a low water content and a large water absorption amount Water content is made uniform. Therefore, even a raw material with a high water content can be put into the carbonization furnace as it is, and the trouble such as preliminary drying can be saved.

炭化炉２に供給された有機廃棄物は、着火バーナー等の着火手段６により着火されて炭化処理が開示する。燃焼により発生する熱によっても炭化処理は進行するが、より炭化処理を促進するために、後述する熱分解ガス燃焼炉１２の排ガスの一部を補助加熱配管２５を介して炭化炉２に導入し、その熱を有機廃棄物の乾燥や加熱に用いることもできる。   The organic waste supplied to the carbonization furnace 2 is ignited by an ignition means 6 such as an ignition burner, and the carbonization treatment is disclosed. Although the carbonization process proceeds also by the heat generated by the combustion, in order to further promote the carbonization process, a part of the exhaust gas from the pyrolysis gas combustion furnace 12 described later is introduced into the carbonization furnace 2 via the auxiliary heating pipe 25. The heat can be used for drying and heating organic waste.

炭化処理により生じた炭化物（活性炭）は、炭化炉２の下部に設けた排出口７を通じて、排出口７の下部に連結した取出手段８により排出され、貯蔵庫９に搬送される。取出手段８としては、スクリューフィーダー等を好適に用いることができる。   Carbide (activated carbon) generated by the carbonization treatment is discharged through the discharge port 7 provided at the lower portion of the carbonization furnace 2 by the take-out means 8 connected to the lower portion of the discharge port 7 and is conveyed to the storage 9. As the extraction means 8, a screw feeder or the like can be suitably used.

炭化炉２上部には、原料の炭化処理により生じた熱分解ガスを排出する排出口１１が設けられており、排出口１１と熱分解ガス燃焼炉１２とが排気配管１３を介して接続されている。この排気配管１３の途中には、熱分解ガスを燃焼炉に送り込むためのブロワー（図示せず）を設けて、炭化炉２から排気された熱分解ガスをスムーズに燃焼炉１２に送り込むようにしてもよい。   In the upper part of the carbonization furnace 2, there is provided a discharge port 11 for discharging the pyrolysis gas generated by the carbonization treatment of the raw material, and the discharge port 11 and the pyrolysis gas combustion furnace 12 are connected via an exhaust pipe 13. Yes. A blower (not shown) for sending the pyrolysis gas to the combustion furnace is provided in the middle of the exhaust pipe 13 so that the pyrolysis gas exhausted from the carbonization furnace 2 is smoothly sent to the combustion furnace 12. Also good.

本発明による炭化炉リサイクルシステムに用いられる炭化炉の具体的な実施形態について、図２を参照しながら説明する。図２は、炭化炉２の一例を示した断面図である。炭化炉２は、機台２１上に設置された略円筒形の本体２２からなり、その本体２２の内壁２３は下方に広がる円錐壁とされた縦型炭化炉である。炭化炉２の上方側部には原料である有機廃棄物の投入口３が設けられ、頂部には熱分解ガスを排気するための排気口１１が設けられており、下部には炭化物取出口７を介して炭化物取出手段８が設けられている。また、炭化炉本体２２の側面の周囲には、有機廃棄物に着火するための着火バーナー２４や補助加熱配管２５やその下部に空気供給口２６が設けられている。   A specific embodiment of the carbonization furnace used in the carbonization furnace recycling system according to the present invention will be described with reference to FIG. FIG. 2 is a cross-sectional view showing an example of the carbonization furnace 2. The carbonization furnace 2 is a vertical type carbonization furnace comprising a substantially cylindrical main body 22 installed on a machine base 21 and an inner wall 23 of the main body 22 having a conical wall extending downward. An upper side portion of the carbonizing furnace 2 is provided with an inlet 3 for organic waste as a raw material, an exhaust port 11 for exhausting pyrolysis gas is provided at the top portion, and a carbide outlet 7 is provided at the lower portion. A carbide take-out means 8 is provided. Further, around the side surface of the carbonization furnace main body 22, an ignition burner 24 for igniting organic waste, an auxiliary heating pipe 25, and an air supply port 26 are provided in the lower part thereof.

炭化炉本体２２の底内部には、回転可能に設置された円盤形状の皿２７が設けられている。供給された有機廃棄物はこの皿の上で炭化されるが、炭化炉本体２２の内壁が下方に広がる円錐壁２３となっているため、炭化処理された原料はブリッジを生じることがない。円盤状の皿２７には、その上面垂直方向に仕切板２８が設けられている。この仕切板２８により、円盤状の皿２７が回転すると、皿２７上に固着した炭化物が破砕されるため、炭化物を排出口７からスムーズに取り出すことができる。   Inside the bottom of the carbonization furnace main body 22, a disk-shaped dish 27 that is rotatably installed is provided. The supplied organic waste is carbonized on this dish. However, since the inner wall of the carbonization furnace body 22 is a conical wall 23 extending downward, the carbonized raw material does not form a bridge. The disk-shaped dish 27 is provided with a partition plate 28 in a direction perpendicular to the upper surface thereof. When the disk-shaped dish 27 is rotated by the partition plate 28, the carbide fixed on the dish 27 is crushed, so that the carbide can be smoothly taken out from the discharge port 7.

着火バーナー２４は、投入された原料に着火できればどの位置でもかまわないが、原料投入口３よりやや下方に設けられていることが好ましい。また、円錐壁２３の円周上の複数箇所に設けることで燃焼を均一化できる。着火バーナーと併用して、熱分解ガス燃焼炉１２から排気される排ガスを用いてもよい。排ガスの熱を有機廃棄物の乾燥や着火に再利用した自燃式炭化炉を用いることにより、システム全体の投入エネルギーコストを低減することができる。   The ignition burner 24 may be located at any position as long as the charged raw material can be ignited, but is preferably provided slightly below the raw material charging port 3. Further, the combustion can be made uniform by providing it at a plurality of locations on the circumference of the conical wall 23. The exhaust gas exhausted from the pyrolysis gas combustion furnace 12 may be used in combination with an ignition burner. By using a self-burning carbonization furnace that reuses the heat of exhaust gas for drying and ignition of organic waste, the input energy cost of the entire system can be reduced.

空気供給口２６は、本体２２の側面に設けられた原料投入口３よりも下方に位置するように設けられることが好ましい。また、空気供給口２６は、本体２２側面の周囲に沿って、複数設けられることが好ましい。   It is preferable that the air supply port 26 is provided so as to be positioned below the raw material input port 3 provided on the side surface of the main body 22. Moreover, it is preferable that a plurality of air supply ports 26 are provided along the periphery of the side surface of the main body 22.

原料である有機廃棄物は還元状態で燃料し、炭化物を含む固形分と熱分解ガスとが生成する。この固形分は、炭化炉の下部へ移動するが、円盤状皿付近では空気が供給されないため不燃部となり、燃焼途中の炭化物は消火される。   Organic waste, which is a raw material, is fueled in a reduced state, and solids containing carbide and pyrolysis gas are generated. Although this solid content moves to the lower part of the carbonization furnace, air is not supplied in the vicinity of the disk-shaped dish, so that it becomes a non-combustible part, and the carbide during combustion is extinguished.

このようにして炭化炉２で生成した炭化物は、排出口７を介して取出手段８へ導かれ、貯蔵庫９に搬送され、炭（活性炭）として再利用される。また、炭化処理の際に発生した熱分解ガスは、熱分解ガス燃焼炉１２へと送られる。   Thus, the carbide | carbonized_material produced | generated with the carbonization furnace 2 is guide | induced to the taking-out means 8 via the discharge port 7, is conveyed to the storage 9, and is reused as charcoal (activated carbon). The pyrolysis gas generated during the carbonization treatment is sent to the pyrolysis gas combustion furnace 12.

熱分解ガス燃焼炉１２には、熱分解ガスの燃焼を補助するための燃焼バーナー１４が設けられている。この燃焼バーナーにより熱分解ガスは高温に加熱されて燃焼する。燃焼炉１２内の温度は１０００℃〜１２００℃程度となる。このような高温燃焼により、熱分解ガス中に含まれるタール成分まで焼成するため、排気配管１３内の詰まりや燃焼炉１２内の汚染を抑制でき、また、クリーンな排ガスとすることができる。   The pyrolysis gas combustion furnace 12 is provided with a combustion burner 14 for assisting combustion of the pyrolysis gas. The pyrolysis gas is heated to a high temperature and combusted by this combustion burner. The temperature in the combustion furnace 12 is about 1000 ° C to 1200 ° C. Since the tar component contained in the pyrolysis gas is baked by such high-temperature combustion, clogging in the exhaust pipe 13 and contamination in the combustion furnace 12 can be suppressed, and a clean exhaust gas can be obtained.

燃焼バーナー１４には、重油と水とを混合噴射してエマルジョン燃焼できるような混合インジェクションバルブを用いることが好ましい。エマルジョン燃焼させることにより、炉内の温度を高温にすることができるとともに、燃料（重油）の消費量を少なくすることができる。混合インジェクションバルブは燃焼バーナーに取り付けて使用される。燃焼バーナー１４へは、燃料である重油曹１５から燃焼炉１２へ延びる供給管１７が接続されており、その供給管１７の途中に水槽１６からの供給管１８が調整バルブ１９を介して接続された構造を有する。   As the combustion burner 14, it is preferable to use a mixed injection valve capable of performing emulsion combustion by mixing and injecting heavy oil and water. By carrying out emulsion combustion, the temperature in the furnace can be raised and the consumption of fuel (heavy oil) can be reduced. The mixing injection valve is used by being attached to a combustion burner. A supply pipe 17 extending from heavy oil soda 15 as fuel to the combustion furnace 12 is connected to the combustion burner 14, and a supply pipe 18 from the water tank 16 is connected to the combustion pipe 14 through an adjustment valve 19. Has a structure.

熱分解ガス燃焼炉１２の上部には、燃焼した排ガスを排出するための排ガスダクト３０が設けられており、外燃機関３２用の加熱炉３１と連結している。燃焼炉１２から排出さたれガスは排ガスダクト３０を通って加熱炉３１に導かれる。   An exhaust gas duct 30 for discharging the combusted exhaust gas is provided at the upper part of the pyrolysis gas combustion furnace 12, and is connected to a heating furnace 31 for the external combustion engine 32. The gas discharged from the combustion furnace 12 is guided to the heating furnace 31 through the exhaust gas duct 30.

燃焼バーナー１４による燃焼は、燃料の供給量を調節することにより適宜調整されるが、燃焼炉内では１０００℃〜１２００℃程度で熱分解ガスが燃焼する。排ガスダクトを通じて高温の排ガスが加熱炉３１内へ導入される際の温度は概ね８００℃程度である。この熱エネルギーが外燃機関３２であるスターリングエンジンの加熱器３２へと伝達されて、冷却器３４により高温の排ガスは２００〜１５０℃程度まで冷却される。   Combustion by the combustion burner 14 is appropriately adjusted by adjusting the amount of fuel supplied, but the pyrolysis gas burns at about 1000 ° C. to 1200 ° C. in the combustion furnace. The temperature when high-temperature exhaust gas is introduced into the heating furnace 31 through the exhaust gas duct is about 800 ° C. This thermal energy is transmitted to the heater 32 of the Stirling engine, which is the external combustion engine 32, and the high-temperature exhaust gas is cooled to about 200 to 150 ° C. by the cooler 34.

排ガスの熱エネルギーにより外燃機関が駆動することにより、外燃機関と連結した発電機３３により発電が行われる。熱交換された排ガスは、加熱炉３１の上部に設けられた煙突３４から排気される。   When the external combustion engine is driven by the heat energy of the exhaust gas, power is generated by the generator 33 connected to the external combustion engine. The exhaust gas subjected to heat exchange is exhausted from a chimney 34 provided in the upper part of the heating furnace 31.

発電機３３により発生した電力を炭化炉リサイクルシステムに再利用することにより、炭化処理に要するエネルギーコストを低減することができる。例えば、発生した電力を、原料投入手段３の押出シリンダー４の駆動や炭化炉から炭を排出する際のスクリューフィーダー８等の駆動電源として再利用したり、また、熱分解ガスを燃焼炉に送り込むためのブロワーの駆動やシステムが載置された部屋の照明等（図示せず）に利用することもできる。また、スターリングエンジンの冷却器３５には冷却水を循環させる必要があるが、循環ポンプの動力源にも、発生した電力を用いることができる。このようにして、炭化処理を行う際のシステム全体的なエネルギーコストが低減され、マテリアルリサイクルおよびエネルギーリサイクルの両方を実現できる。   By reusing the electric power generated by the generator 33 in the carbonization furnace recycling system, the energy cost required for the carbonization process can be reduced. For example, the generated electric power is reused as a drive power source for the extrusion cylinder 4 of the raw material charging means 3 and a screw feeder 8 when discharging charcoal from the carbonization furnace, or the pyrolysis gas is sent to the combustion furnace. For example, it can be used for driving a blower or lighting of a room in which the system is placed (not shown). Moreover, although it is necessary to circulate cooling water to the cooler 35 of a Stirling engine, the generated electric power can also be used for the power source of the circulation pump. In this way, the overall energy cost of the system when performing carbonization is reduced, and both material recycling and energy recycling can be realized.

２ 炭化炉
３ 原料供給手段
１２ 熱分解ガス燃焼炉
３１ 加熱器
３２ 外燃機関
３３ 発電機 2 Carbonization furnace 3 Raw material supply means 12 Pyrolysis gas combustion furnace 31 Heater 32 External combustion engine 33 Generator

Claims (6)

原料である有機廃棄物を炭化炉へ供給する原料供給手段と、
前記有機廃棄物を炭化処理して炭化物を得る炭化炉と、
前記炭化炉と一体に、または独立に構成され、前記炭化処理の際に発生する熱分解ガスを燃焼させる燃焼炉と、
前記燃焼炉から発生した熱により駆動する外燃機関と、
前記外燃機関により発電する発電機と、
を少なくとも備え、前記発電機から発電された電力が、原料供給手段またはその他の電力消費装置へ供給されることを特徴とする、炭化炉リサイクルシステム。 Raw material supply means for supplying organic waste as raw material to the carbonization furnace,
A carbonization furnace for carbonizing the organic waste to obtain a carbide;
A combustion furnace configured to be integrated with or independent from the carbonization furnace and combusting pyrolysis gas generated during the carbonization process;
An external combustion engine driven by heat generated from the combustion furnace;
A generator for generating electricity by the external combustion engine;
A carbonization furnace recycling system, characterized in that the electric power generated from the generator is supplied to raw material supply means or other power consuming devices. 前記原料供給手段が、前記発電機から発電された電力により駆動する、請求項１に記載の炭化炉リサイクルシステム。   The carbonization furnace recycling system according to claim 1, wherein the raw material supply means is driven by electric power generated from the generator. 前記炭化炉は、炭化炉で生成した炭化物を外部へ取り出す炭化物取出手段を備え、前記炭化物取出手段が前記発電機から発電された電力により駆動する、請求項１または２に記載の炭化炉リサイクルシステム。   The carbonization furnace recycle system according to claim 1 or 2, wherein the carbonization furnace includes carbide extraction means for extracting the carbide generated in the carbonization furnace to the outside, and the carbide extraction means is driven by electric power generated from the generator. . 前記外燃機関がスターリングエンジンである、請求項１〜３のいずれか一項に記載の炭化炉リサイクルシステム。   The carbonization furnace recycling system according to any one of claims 1 to 3, wherein the external combustion engine is a Stirling engine. 前記炭化炉は、原料の部分燃焼による自己熱を使用した自燃式炭化炉である、請求項１〜４のいずれか一項に記載の炭化炉リサイクルシステム。   The carbonization furnace recycling system according to any one of claims 1 to 4, wherein the carbonization furnace is a self-combustion type carbonization furnace that uses self-heat from partial combustion of raw materials. 前記有機廃棄物が、衣服廃材、木質系およびプラスチック系有機廃棄物、有機物の汚泥ならびに食品残渣である、請求項１〜５のいずれか一項に記載の炭化炉リサイクルシステム。   The carbonization furnace recycling system according to any one of claims 1 to 5, wherein the organic waste is clothes waste, woody and plastic organic waste, organic sludge and food residue.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219411A (en) * 2014-07-03 2016-01-06 环拓科技股份有限公司 Integrating treatment system is reclaimed in damaged tire commercialization
JP2021010881A (en) * 2019-07-08 2021-02-04 株式会社フジタ System for producing adsorbent, and method for producing adsorbent
JP7197958B1 (en) * 2022-04-27 2022-12-28 株式会社大木工藝 Waste fabric processing method and waste fabric processing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219411A (en) * 2014-07-03 2016-01-06 环拓科技股份有限公司 Integrating treatment system is reclaimed in damaged tire commercialization
JP2021010881A (en) * 2019-07-08 2021-02-04 株式会社フジタ System for producing adsorbent, and method for producing adsorbent
JP7262330B2 (en) 2019-07-08 2023-04-21 株式会社フジタ Systems for producing adsorbents and methods of producing adsorbents
JP7197958B1 (en) * 2022-04-27 2022-12-28 株式会社大木工藝 Waste fabric processing method and waste fabric processing apparatus
WO2023209890A1 (en) * 2022-04-27 2023-11-02 株式会社大木工藝 Processing method for discarded cloth product and processing device for discarded cloth product

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