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JP2008215710A - Solid biomass fuel supply system - Google Patents

Solid biomass fuel supply system Download PDF

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JP2008215710A
JP2008215710A JP2007053637A JP2007053637A JP2008215710A JP 2008215710 A JP2008215710 A JP 2008215710A JP 2007053637 A JP2007053637 A JP 2007053637A JP 2007053637 A JP2007053637 A JP 2007053637A JP 2008215710 A JP2008215710 A JP 2008215710A
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solid biomass
coal
biomass fuel
solid
fuel
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JP4946518B2 (en
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Shigehiro Matsuda
茂弘 松田
Yuichi Yamaji
裕一 山地
Satoru Suetake
悟 末武
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Tokyo Electric Power Co Holdings 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
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To supply a solid biomass fuel to be burned while mixed with coal, even when hard biomass particulate pieces are mixed in the solid biomass. <P>SOLUTION: The solid biomass is separated into fine power particles and particulate pieces which can not be ground by a coal grinder by a separating device 11, and the particulate pieces separated by the separating device 11 is finely ground by a biomass grinder 13. A solid biomass fuel charging system 12 mixes the solid biomass fine powder particles separated by the separating device 11 and the fine powder particles of the particulate pieces ground by the biomass grinder 13 to prepare the solid biomass fuel, and puts the solid biomass fuel into a coal supply line 14 for supplying coal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、固体バイオマスを石炭とともに石炭粉砕機に供給する固体バイオマス燃料供給装置に関する。   The present invention relates to a solid biomass fuel supply apparatus that supplies solid biomass together with coal to a coal pulverizer.

最近、ＲＰＳ（Renewables Portfolio Standard）法（電気事業者による新エネルギー等の利用に関する特別措置法）の新エネルギーの基準利用量達成に寄与するように、環境に優しい風力や太陽光あるいはバイオマス燃料などの新エネルギーの導入が図られている。これら新エネルギーのうちバイオマス燃料については、海外のパーム残渣を石炭火力や石油火力で混焼させることが考えられている。パーム残渣としては、パーム果実房から果実を取り除いた残材を細かく砕きペレット状に固めたパーム空房ペレット、パーム核油かすであるＰＫＥ、パーム核の殻であるパームシェル、パーム果実房の油脂のうち常温で固体部分のパームステアリン等がある。   Recently, environmentally friendly wind power, solar power, biomass fuel, etc. have been developed so as to contribute to the achievement of the new energy standard usage of the Renewables Portfolio Standard (RPS) Law (Special Law on the Use of New Energy by Electric Power Companies). New energy is being introduced. Among these new energies, it is considered that biomass fuel is co-fired from overseas palm residue with coal-fired or oil-fired power. Palm residue includes palm empty bunch pellets obtained by finely crushing the remaining material from the palm fruit bunch into a pellet, PKE as palm kernel oil residue, palm shell as palm kernel shell, Among them, there is palm stearin or the like which is a solid part at room temperature.

固体バイオマスを用いたバイオマス発電は、発電コストとポテンシャルとの面で優れているため、ＲＰＳ法への対応において最も有効なもので、その中でもパーム残渣は、海外からの調達が期待できるため最も期待されている。固体バイオマスを火力発電所で使用する場合には、既設の石炭火力発電所には石炭を粉砕する石炭粉砕機を有していることから、固体バイオマスを石炭とともに石炭粉砕機に供給し、石炭粉砕機で混合させて粉砕した後にボイラの石炭バーナに空気搬送にて運び、石炭バーナで混合燃焼させる混合粉砕方式が考えられる。   Biomass power generation using solid biomass is superior in terms of power generation cost and potential, so it is the most effective in responding to the RPS method. Among them, palm residue is the most promising because it can be procured from overseas. Has been. When solid biomass is used at a thermal power plant, the existing coal thermal power plant has a coal pulverizer that pulverizes the coal. A mixing and pulverizing method is conceivable in which the mixture is pulverized and mixed by a machine, then conveyed to a coal coal burner by air conveyance, and mixed and burned by the coal burner.

ここで、バイオマスに改質を加えてバイオマス燃料を取り出すようにしたものとして、固体廃棄物スラリを反応させて得られた反応生成スラリに、石炭や石油などの代替燃料となり得る高発熱量の補助燃料を混合して燃料用の混合スラリとしたものがある（例えば特許文献１参照）。
特開平９−３１６４６５号公報 Here, it is assumed that biomass fuel is removed by reforming biomass, and the reaction product slurry obtained by reacting the solid waste slurry reacts with high calorific value that can be used as an alternative fuel such as coal and oil. There is a fuel mixing slurry prepared by mixing fuel (see, for example, Patent Document 1).
JP-A-9-316465

しかし、特許文献１のものでは固体バイオマスを燃料用の反応生成スラリに改質し、石炭や石油などの代替燃料となり得る高発熱量の補助燃料を混合して燃料用の混合スラリとしているので、その改質のための工程が必要となるだけでなく補助燃料も必要となる。   However, in Patent Document 1, solid biomass is reformed into a reaction-generated slurry for fuel, and a high calorific value auxiliary fuel that can be used as an alternative fuel such as coal or petroleum is mixed to form a mixed slurry for fuel. Not only is the reforming process required, but auxiliary fuel is also required.

一方、固体バイオマスを石炭とともに石炭粉砕機１５で粉砕し石炭バーナで燃焼させる混合粉砕方式では、既設の石炭粉砕機で固体バイオマスを石炭の粉砕粒まで細かく粉砕することが容易ではないので、固体バイオマスが石炭用に設定された分級機を通過することができず、固体バイオマスの石炭バーナへの導入量が低く抑えられてしまう。すなわち、パーム残渣であるパームシェルを既存の石炭粉砕機で粉砕しようとすると、硬質のパームシェルが石炭粉砕機内の分級機を通過する大きさまで粉砕されるのに時間と動力とを要し、石炭粉砕機の動力のモータ負荷制限により結果的にその処理量が低くなる。   On the other hand, in the mixed pulverization method in which solid biomass is pulverized with coal by the coal pulverizer 15 and burned by the coal burner, it is not easy to finely pulverize the solid biomass to pulverized coal particles with the existing coal pulverizer. Cannot pass through a classifier set for coal, and the amount of solid biomass introduced into the coal burner is kept low. That is, when trying to pulverize the palm shell, which is palm residue, with an existing coal pulverizer, it takes time and power to pulverize the hard palm shell to a size that passes through the classifier in the coal pulverizer. Due to the motor load limitation of the power of the pulverizer, the processing amount is lowered as a result.

また、パーム核油かすであるＰＫＥにも生産時点からパームシェルが含まれているため、ＰＫＥやパームシェルは、既存の石炭粉砕機で粉砕することが容易でないことが判明した。このため、ＰＫＥやパームシェルは既存の石炭火力発電所の設備では石炭と混焼することができないため、そのままでは、微粉炭ボイラ用のバイオマス燃料としては、不向きな燃料ということになる
本発明の目的は、硬質のバイオマス粉粒片が混ざった固体バイオマスであっても、石炭と混焼させることができる固体バイオマス燃料を供給できる固体バイオマス燃料供給装置を提供することである。 Moreover, since PKE which is a palm kernel oil residue also contains palm shell from the time of production, it turned out that it is not easy to grind | pulverize PKE and palm shell with the existing coal grinder. For this reason, PKE and palm shell cannot be co-fired with coal in existing coal-fired power plant facilities, and as such, will be unsuitable as biomass fuel for pulverized coal boilers. Is to provide a solid biomass fuel supply device capable of supplying solid biomass fuel that can be co-fired with coal even if it is solid biomass mixed with hard biomass powder particles.

請求項１の発明に係わる固体バイオマス燃料供給装置は、固体バイオマスを微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離する分離装置と、前記分離装置で分離された粉粒片を微粉粒に粉砕するバイオマス粉砕機と、前記分離装置で分離された固体バイオマス微粉粒及び前記バイオマス粉砕機で粉砕された粉粒片の微粉粒を混合して固体バイオマス燃料とし石炭を供給する石炭供給ラインに前記固体バイオマス燃料を投入する固体バイオマス燃料投入系統とを備えたことを特徴とする。   The solid biomass fuel supply device according to the invention of claim 1 is a separation device that separates solid biomass into fine particles and powder particles that cannot be pulverized by a coal pulverizer, and fine powder particles separated by the separation device. To a coal supply line that supplies coal as solid biomass fuel by mixing the biomass pulverizer to be pulverized into the solid biomass fine particles separated by the separator and the fine particles of the pulverized powder fragments by the biomass pulverizer And a solid biomass fuel input system for supplying the solid biomass fuel.

請求項２の発明に係わる固体バイオマス燃料供給装置は、固体バイオマスを微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離する分離装置と、前記分離装置で分離された粉粒片を炭化処理する炭化装置と、前記分離装置で分離された固体バイオマス微粉粒及び前記炭化装置で炭化された固体バイオマス炭化物を混合して固体バイオマス燃料とし石炭を供給する石炭供給ラインに前記固体バイオマス燃料を投入する固体バイオマス燃料投入系統とを備えたことを特徴とする。   The solid biomass fuel supply device according to the invention of claim 2 is a separation device that separates solid biomass into fine powder particles and powder particles that cannot be pulverized by a coal pulverizer, and carbonization of the powder particles separated by the separation device. The solid biomass fuel is fed into a coal supply line that supplies coal by mixing the carbonization device to be separated, the solid biomass fine particles separated by the separation device and the solid biomass carbide carbonized by the carbonization device into solid biomass fuel And a solid biomass fuel charging system.

請求項３の発明に係わる固体バイオマス燃料供給装置は、請求項１または２の発明において、前記固体バイオマス燃料投入系統が前記固体バイオマス燃料を前記石炭供給ラインに投入する箇所は、前記石炭供給ラインのうち、少なくとも１回は前記石炭供給ラインの乗り継ぎ箇所を経由する箇所であることを特徴とする。   A solid biomass fuel supply apparatus according to a third aspect of the present invention is the solid biomass fuel supply apparatus according to the first or second aspect of the present invention, wherein the solid biomass fuel input system inputs the solid biomass fuel into the coal supply line. Of these, at least once is a location that passes through a transit location of the coal supply line.

請求項４の発明に係わる固体バイオマス燃料供給装置は、請求項３の発明において、前記固体バイオマス燃料投入系統が前記固体バイオマス燃料を前記石炭供給ラインに投入する箇所は、前記石炭供給ラインの乗り継ぎ箇所であり、前記固体バイオマス燃料を先にコンベアに投入し、その固体バイオマス燃料の上部に石炭を投入することを特徴とする。   The solid biomass fuel supply apparatus according to a fourth aspect of the present invention is the solid biomass fuel supply apparatus according to the third aspect of the present invention, wherein the solid biomass fuel input system is connected to the coal supply line at a location where the solid biomass fuel is input to the coal supply line. The solid biomass fuel is put into a conveyor first, and coal is put into the upper part of the solid biomass fuel.

本発明によれば、固体バイオマスを微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離し、分離した粉粒片を微粉粒に粉砕または炭化処理し、固体バイオマス微粉粒に混合して固体バイオマス燃料とし石炭を供給する石炭供給ラインに投入するので、硬質のバイオマス原料が混ざったバイオマスであっても、石炭と混焼させる燃料として取り扱うことができる。   According to the present invention, solid biomass is separated into fine particles and powder particles that cannot be pulverized by a coal pulverizer, the separated powder particles are pulverized or carbonized into fine particles, mixed with the solid biomass fine particles, and solid Since it is input to a coal supply line that supplies coal as biomass fuel, even biomass mixed with hard biomass materials can be handled as fuel to be co-fired with coal.

また、固体バイオマス燃料を少なくとも１回は石炭供給ラインの乗り継ぎ箇所を経由する箇所に投入するので、経由した石炭供給ラインの乗り継ぎ箇所において固体バイオマス燃料が石炭に容易に混合することができる。また、石炭供給ラインの乗り継ぎ箇所で、固体バイオマス燃料を先にコンベアに投入し、その固体バイオマス燃料の上部に石炭を投入するので、固体バイオマス燃料が空気中に飛散することを抑制でき固体バイオマス燃料による粉塵爆発を防止できる。   In addition, since the solid biomass fuel is introduced at least once into a location that passes through the transit point of the coal supply line, the solid biomass fuel can be easily mixed with the coal at the transit location of the coal supply line that is passed through. In addition, the solid biomass fuel is put into the conveyor first at the transfer point of the coal supply line, and the coal is put into the upper part of the solid biomass fuel, so that the solid biomass fuel can be prevented from being scattered in the air. Can prevent dust explosion.

図１は本発明の実施の形態に係わる固体バイオマス燃料供給装置の一例を示すブロック構成図である。固体バイオマスは分離装置１１に投入され、微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離される。分離装置１１は篩あるいはサイクロン等であり、固体バイオマスは、例えば、パーム核の殻であるパームシェルあるいはパーム核油かすであるＰＫＥである。パームシェルは硬質であり脆くない性質を有し、既存の石炭粉砕機で粉砕するのは困難である。そこで、分離装置１１にて、微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離して、石炭粉砕機では粉砕できない粉粒片を抽出する。同様に、パーム核油かすであるＰＫＥにも生産時点からパームシェルが含まれているので、分離装置１１を通し石炭粉砕機では粉砕できない粉粒片を抽出する。   FIG. 1 is a block diagram showing an example of a solid biomass fuel supply apparatus according to an embodiment of the present invention. Solid biomass is put into the separation device 11 and separated into fine particles and powder particles that cannot be pulverized by a coal pulverizer. The separation device 11 is a sieve or a cyclone, and the solid biomass is, for example, palm shell which is a shell of palm kernel or PKE which is palm kernel oil residue. Palm shells are hard and not brittle and are difficult to grind with existing coal grinders. Therefore, the separation device 11 separates the fine particles and the powder particles that cannot be pulverized by the coal pulverizer, and extracts the powder particles that cannot be pulverized by the coal pulverizer. Similarly, since PKE which is palm kernel oil residue also contains palm shell from the time of production, powder particles that cannot be pulverized by the coal pulverizer are extracted through the separator 11.

分離装置１１で分離された固体バイオマスの微粉粒は固体バイオマス燃料投入系統１２に供給され、一方、分離装置１１で分離され抽出された粉粒片はバイオマス粉砕機１３に供給される。バイオマス粉砕機１３では分離装置１１で抽出された固体バイオマスの粉粒片を微粉粒に粉砕する。バイオマス粉砕機１３は硬質のパームシェルを粉砕する専用の粉砕機であり、例えば、ブレードやピンなどを高速回転させて衝撃及びせん断によってパームシェルを微粉砕する高速回転ミルである。バイオマス粉砕機１３で粉砕された固体バイオマスの微粉粒は固体バイオマス燃料投入系統１２に供給される。   The fine particles of solid biomass separated by the separation device 11 are supplied to the solid biomass fuel input system 12, while the powder particles separated and extracted by the separation device 11 are supplied to the biomass crusher 13. The biomass pulverizer 13 pulverizes the powder pieces of solid biomass extracted by the separator 11 into fine particles. The biomass pulverizer 13 is a dedicated pulverizer that pulverizes a hard palm shell. For example, the biomass pulverizer 13 is a high-speed rotary mill that rotates a blade or a pin at high speed to finely pulverize the palm shell by impact and shear. The fine particles of solid biomass pulverized by the biomass pulverizer 13 are supplied to the solid biomass fuel input system 12.

固体バイオマス燃料投入系統１２は、分離装置１１で分離された固体バイオマスの微粉粒とバイオマス粉砕機１３で粉砕された固体バイオマス粉粒片の微粉粒とを混合して固体バイオマス燃料とし、石炭を供給する石炭供給ライン１４に投入する。すなわち、コンベアを乗り継いで石炭を搬送する石炭供給ライン１４のコンベアに、微粉粒の固体バイオマス燃料を投入し、石炭に混合して石炭粉砕機１５に搬送する。   The solid biomass fuel charging system 12 mixes the fine powder particles of the solid biomass separated by the separator 11 and the fine powder particles of the solid biomass powder particles pulverized by the biomass pulverizer 13 into solid biomass fuel, and supplies coal. To the coal supply line 14. That is, solid biomass fuel of fine particles is put into a conveyor of a coal supply line 14 that transfers the coal by transferring the conveyor, mixed with the coal, and conveyed to the coal pulverizer 15.

石炭粉砕機１５は、周知のように、円盤状テーブルにローラを押し付けローラとテーブルの面の間で石炭を粉砕するものであり、硬質のパームシェルは既にバイオマス粉砕機１３により微粉粒に粉砕されているので、石炭粉砕機１５は主として石炭を粉砕することになる。石炭粉砕機１５で石炭を粉砕して得られた微粉炭及び固体バイオマス燃料の微粉粒の混合燃料は、ボイラ１６の石炭バーナ１７に供給され燃焼することになる。   As is well known, the coal pulverizer 15 presses a roller against a disk-shaped table and pulverizes coal between the roller and the surface of the table. The hard palm shell is already pulverized into fine particles by the biomass pulverizer 13. Therefore, the coal pulverizer 15 mainly pulverizes coal. The pulverized coal obtained by pulverizing the coal with the coal pulverizer 15 and the mixed fuel of fine particles of the solid biomass fuel are supplied to the coal burner 17 of the boiler 16 and combusted.

図２は固体バイオマス燃料投入系統１２から石炭供給ライン１４に固体バイオマス燃料を投入する際の説明図であり、図２（ａ）は固体バイオマス燃料を石炭供給ラインに投入する箇所の断面図、図２（ｂ）は図２（ａ）の矢印Ａ方向からの平面図である。   FIG. 2 is an explanatory diagram when the solid biomass fuel is input from the solid biomass fuel input system 12 to the coal supply line 14, and FIG. 2A is a cross-sectional view of a portion where the solid biomass fuel is input to the coal supply line. 2 (b) is a plan view from the direction of arrow A in FIG. 2 (a).

図２（ａ）において、石炭供給ライン１４は、複数のコンベア１８を乗り継いで貯炭場から石炭粉砕機１５まで石炭１９を搬送するものであり、コンベア１８の乗り継ぎ箇所には乗り継ぎ建家２０が設けられている。そして、例えば、空気浮上式コンベアの場合には、コンベア１８はチューブ２１に収納され、コンベア１８ｉに搭載された石炭１９のコンベア１８ｊへの乗り継ぎは、コンベア１８ｉのヘッド部２２からコンベアｊのボトム部２３に石炭１９を落下させて乗り継ぐようにしている。   In FIG. 2A, the coal supply line 14 transfers a plurality of conveyors 18 to transfer coal 19 from the coal storage to the coal pulverizer 15, and a transfer building 20 is provided at the transfer point of the conveyor 18. It has been. For example, in the case of an air levitation conveyor, the conveyor 18 is housed in a tube 21, and the connection of coal 19 mounted on the conveyor 18 i to the conveyor 18 j is performed from the head portion 22 of the conveyor 18 i to the bottom portion of the conveyor j. 23, coal 19 is dropped and transferred.

固体バイオマス燃料投入系統１２から石炭供給ライン１５への固体バイオマス燃料２４の投入は、このような乗り継ぎ建家２０内のコンベア１８ｊのボトム部２３に、石炭１９より先にシュート２５から投入する。従って、石炭１９は、図２（ｂ）に示すように、固体バイオマス燃料２４の上部に投入されることになる。石炭１９を固体バイオマス燃料２４の上部に投入するようにしているのは、固体バイオマス燃料２４の微粉粒が空気中に飛散し粉塵爆発するのを防止するためである。   The solid biomass fuel 24 is supplied from the solid biomass fuel input system 12 to the coal supply line 15 from the chute 25 before the coal 19 to the bottom portion 23 of the conveyor 18j in the transit building 20 as described above. Therefore, the coal 19 is input to the upper part of the solid biomass fuel 24 as shown in FIG. The reason why the coal 19 is introduced into the upper portion of the solid biomass fuel 24 is to prevent fine particles of the solid biomass fuel 24 from being scattered in the air and causing a dust explosion.

すなわち、固体バイオマス燃料２４の微粉粒は空気中に飛散すると粉塵爆発の危険性がある。そこで、分離装置１１で分離したバイオマス微粉粒、及びバイオマス粉砕機１３で粉砕した固体バイオマス微粉粒を混合し、混合して得られた固体バイオマス燃料２４を直接的にシュート２５に導き、コンベア１８のボトム部２３に投入し、その上部に石炭１９を投入して固体バイオマス燃料２４の微粉粒が空気中に飛散することを抑制するようにしている。それでも、粉塵爆発の懸念がある場合には、安全のために混合して得られた固体バイオマス燃料２４に水噴霧を施すことになる。   That is, if the fine particles of the solid biomass fuel 24 are scattered in the air, there is a risk of dust explosion. Therefore, the biomass fine particles separated by the separation device 11 and the solid biomass fine particles pulverized by the biomass pulverizer 13 are mixed, and the solid biomass fuel 24 obtained by mixing is directly guided to the chute 25, and the conveyor 18 It throws into the bottom part 23, coal 19 is thrown into the upper part, and it is trying to suppress that the fine particle of the solid biomass fuel 24 is scattered in the air. If there is still a concern of dust explosion, water spray is applied to the solid biomass fuel 24 obtained by mixing for safety.

また、固体バイオマス燃料投入系統１２から固体バイオマス燃料２４を投入する箇所は、固体バイオマス燃料２４を投入してから少なくとも１回は次の乗り継ぎ箇所を経由する箇所に固体バイオマス燃料２４を投入する。これにより、次の乗り継ぎ箇所において、コンベア１８での乗り継ぎの際に、固体バイオマス燃料２４が石炭１９とともに次のコンベア１８に落下することになり、固体バイオマス燃料２４と石炭１９とが混合して落下し容易に混合できる。なお、固体バイオマス燃料２４を投入してからの乗り継ぎ箇所が多くなると、固体バイオマス燃料２４と石炭１９との混合はよくできるが、固体バイオマス燃料２４の微粉粒は空気中に飛散する可能性が高くなるので、固体バイオマス燃料２４を投入してからの乗り継ぎ箇所は少ない方が好ましい。   In addition, at the location where the solid biomass fuel 24 is introduced from the solid biomass fuel introduction system 12, the solid biomass fuel 24 is introduced at a location via the next transit location at least once after the solid biomass fuel 24 is introduced. As a result, at the next transfer location, the solid biomass fuel 24 falls to the next conveyor 18 together with the coal 19 during the transfer on the conveyor 18, and the solid biomass fuel 24 and the coal 19 are mixed and dropped. Can be mixed easily. Note that if the number of connecting points after the solid biomass fuel 24 is added increases, the solid biomass fuel 24 and the coal 19 can be mixed well, but the fine particles of the solid biomass fuel 24 are likely to be scattered in the air. Therefore, it is preferable that the number of connecting points after the solid biomass fuel 24 is introduced is small.

以上の説明では、分離装置１１で分離され抽出された粉粒片をバイオマス粉砕機１３で粉砕し、固体バイオマスの微粉粒としたが、図３に示すように、分離装置１１で分離され抽出された粉粒片を炭化装置２６に導き炭化処理して、分離装置で分離された固体バイオマス微粉粒に混合し、固体バイオマス燃料とするようにしてもよい。   In the above description, the powder particles separated and extracted by the separation device 11 are pulverized by the biomass pulverizer 13 to form solid biomass fine particles. However, as shown in FIG. It is also possible to introduce the powder particles into the carbonization device 26, carbonize them, mix them with the solid biomass fine particles separated by the separation device, and use them as solid biomass fuel.

本発明の実施の形態によれば、固体バイオマスを分離装置１１で、微粉粒と石炭粉砕機１５では粉砕できない粉粒片とに分離し、分離した粉粒片をバイオマス粉砕機１３で微粉粒に粉砕し、または炭化装置２６で炭化処理し、分離装置１１で分離した固体バイオマス微粉粒に混合して固体バイオマス燃料とするので、硬質のバイオマス原料が混ざったバイオマスであっても、石炭と混焼させる燃料として取り扱うことができる。   According to the embodiment of the present invention, the solid biomass is separated into fine powder particles and powder particles that cannot be pulverized by the coal pulverizer 15 by the separation device 11, and the separated powder particles are converted into fine particles by the biomass pulverizer 13. Since it is pulverized or carbonized by the carbonization device 26 and mixed with the solid biomass fine particles separated by the separation device 11 to obtain a solid biomass fuel, even if it is a biomass mixed with a hard biomass material, it is co-fired with coal. It can be handled as fuel.

また、得られた固体バイオマス燃料を少なくとも１回は石炭供給ライン１４の乗り継ぎ箇所を経由する箇所に投入するので、経由した石炭供給ライン１４の乗り継ぎ箇所において、固体バイオマス燃料２４が石炭１９に容易に混合することができる。また、石炭供給ライン１４の乗り継ぎ箇所で、固体バイオマス燃料を先にコンベア１８に投入し、その固体バイオマス燃料２４の上部に石炭１９を投入するので、固体バイオマス燃料２４が空気中に飛散することを抑制できる。   In addition, since the obtained solid biomass fuel is introduced at least once into a location that passes through the transit location of the coal supply line 14, the solid biomass fuel 24 can be easily transferred to the coal 19 at the transit location of the coal supply line 14 that is passed through. Can be mixed. In addition, since the solid biomass fuel is first put into the conveyor 18 at the connecting point of the coal supply line 14 and the coal 19 is put into the upper part of the solid biomass fuel 24, the solid biomass fuel 24 is scattered in the air. Can be suppressed.

本発明の実施の形態に係わる固体バイオマス燃料供給装置の一例を示すブロック構成図。The block block diagram which shows an example of the solid biomass fuel supply apparatus concerning embodiment of this invention. 本発明の実施の形態における固体バイオマス燃料投入系統から石炭供給ラインに固体バイオマス燃料を投入する際の説明図。Explanatory drawing at the time of charging solid biomass fuel into the coal supply line from the solid biomass fuel input system in the embodiment of the present invention. 本発明の実施の形態に係わる固体バイオマス燃料供給装置の他の一例を示すブロック構成図。The block block diagram which shows another example of the solid biomass fuel supply apparatus concerning embodiment of this invention.

符号の説明Explanation of symbols

１１…分離装置、１２…固体バイオマス燃料投入系統、１３…バイオマス粉砕機、１４…石炭供給ライン、１５…石炭粉砕機、１６…ボイラ、１７…石炭バーナ、１８…コンベア、１９…石炭、２０…乗り継ぎ建家、２１…チューブ、２２…ヘッド部、２３…ボトム部、２４…固体バイオマス燃料、２５…シュート、２６…炭化装置 DESCRIPTION OF SYMBOLS 11 ... Separator, 12 ... Solid biomass fuel input system, 13 ... Biomass grinder, 14 ... Coal supply line, 15 ... Coal grinder, 16 ... Boiler, 17 ... Coal burner, 18 ... Conveyor, 19 ... Coal, 20 ... Transit building, 21 ... tube, 22 ... head, 23 ... bottom, 24 ... solid biomass fuel, 25 ... chute, 26 ... carbonizing device

Claims (4)

固体バイオマスを微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離する分離装置と、前記分離装置で分離された粉粒片を微粉粒に粉砕するバイオマス粉砕機と、前記分離装置で分離された固体バイオマス微粉粒及び前記バイオマス粉砕機で粉砕された粉粒片の微粉粒を混合して固体バイオマス燃料とし石炭を供給する石炭供給ラインに前記固体バイオマス燃料を投入する固体バイオマス燃料投入系統とを備えたことを特徴とする固体バイオマス燃料供給装置。   Separation device that separates solid biomass into fine particles and powder particles that cannot be pulverized by a coal pulverizer, a biomass pulverizer that pulverizes the powder particles separated by the separation device into fine particles, and the separation device. A solid biomass fuel input system that inputs the solid biomass fuel into a coal supply line that supplies the coal as a solid biomass fuel by mixing the solid biomass fine particles and the fine particles of the powder pieces crushed by the biomass pulverizer A solid biomass fuel supply apparatus comprising: 固体バイオマスを微粉粒と石炭粉砕機では粉砕できない粉粒片とに分離する分離装置と、前記分離装置で分離された粉粒片を炭化処理する炭化装置と、前記分離装置で分離された固体バイオマス微粉粒及び前記炭化装置で炭化された固体バイオマス炭化物を混合して固体バイオマス燃料とし石炭を供給する石炭供給ラインに前記固体バイオマス燃料を投入する固体バイオマス燃料投入系統とを備えたことを特徴とする固体バイオマス燃料供給装置。   Separation device that separates solid biomass into fine particles and powder particles that cannot be pulverized by a coal pulverizer, carbonization device that carbonizes the powder particles separated by the separation device, and solid biomass separated by the separation device A solid biomass fuel input system for supplying the solid biomass fuel to a coal supply line that supplies fine coal and solid biomass carbide carbonized by the carbonization apparatus as solid biomass fuel to supply coal Solid biomass fuel supply device. 前記固体バイオマス燃料投入系統が前記固体バイオマス燃料を前記石炭供給ラインに投入する箇所は、前記石炭供給ラインのうち、少なくとも１回は前記石炭供給ラインの乗り継ぎ箇所を経由する箇所であることを特徴とする請求項１または２記載の固体バイオマス燃料供給装置。   Where the solid biomass fuel input system inputs the solid biomass fuel into the coal supply line, the coal supply line is a location that passes through the connection point of the coal supply line at least once. The solid biomass fuel supply apparatus according to claim 1 or 2. 前記固体バイオマス燃料投入系統が前記固体バイオマス燃料を前記石炭供給ラインに投入する箇所は、前記石炭供給ラインの乗り継ぎ箇所であり、前記固体バイオマス燃料を先にコンベアに投入し、その固体バイオマス燃料の上部に石炭を投入することを特徴とする請求項３記載の固体バイオマス燃料供給装置。   The location where the solid biomass fuel input system inputs the solid biomass fuel into the coal supply line is a transit location of the coal supply line, and the solid biomass fuel is input into a conveyor first, and the upper part of the solid biomass fuel The solid biomass fuel supply apparatus according to claim 3, wherein coal is fed into the tank.
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