JP5171716B2 - Biomass foreign material removal equipment - Google Patents

Biomass foreign material removal equipment Download PDF

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JP5171716B2
JP5171716B2 JP2009087066A JP2009087066A JP5171716B2 JP 5171716 B2 JP5171716 B2 JP 5171716B2 JP 2009087066 A JP2009087066 A JP 2009087066A JP 2009087066 A JP2009087066 A JP 2009087066A JP 5171716 B2 JP5171716 B2 JP 5171716B2
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biomass
raw material
material tank
stirring
foreign matter
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JP2010234319A (en
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幸彦 松村
嘉久 清水
幸政 山村
昭史 中村
英嗣 清永
洋二 野田
智朗 美濃輪
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Chugoku Electric Power Co 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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Description

本発明は、家畜***物、生ゴミ等のバイオマスを原料としてガス化処理することにより燃料ガスを生成するバイオマスガス化システムに用いられ、特に、バイオマスをガス化処理する前工程においてバイオマスに含まれる異物（鳥類の羽根）を除去するのに有効なバイオマスの異物除去装置に関する。   INDUSTRIAL APPLICABILITY The present invention is used in a biomass gasification system that generates fuel gas by gasifying biomass such as livestock excrement and raw garbage as raw materials, and is particularly included in biomass in the previous step of gasifying biomass. The present invention relates to a biomass foreign matter removing apparatus effective for removing foreign matters (bird feathers).

近年、家畜***物、生ゴミ等のバイオマスを原料とした各種のエネルギー変換技術の開発が行われている。例えば、微生物によりバイオマスを発酵させて燃料ガスを生成する方法、バイオマスに含まれる水を利用として加圧熱水処理を行うことにより燃料ガスを生成する方法等の方法が知られている。後者の方法としては、触媒を用いてウエット・バイオマスを超臨界水でガス化し、燃料ガスを生成する方法が知られている（例えば、特許文献１〜３参照。）。   In recent years, various energy conversion technologies using biomass such as livestock excrement and garbage have been developed. For example, methods such as a method of producing fuel gas by fermenting biomass with microorganisms and a method of producing fuel gas by performing pressurized hot water treatment using water contained in biomass are known. As the latter method, a method of gasifying wet biomass with supercritical water using a catalyst to generate a fuel gas is known (see, for example, Patent Documents 1 to 3).

しかし、上記のような各種のエネルギー変換技術は、燃料ガスの生成効率の面で必ずしも満足できるものではないため、バイオマスから燃料ガスをより効率的に生成することができる技術の開発が求められている。   However, the various energy conversion technologies as described above are not necessarily satisfactory in terms of fuel gas generation efficiency, and therefore development of a technology capable of more efficiently generating fuel gas from biomass is required. Yes.

バイオマスから燃料ガスを効率良く生成できるようにしたエネルギー変換技術の一例が特許文献４に記載されている。
このエネルギー変換技術は、バイオマス及び非金属系触媒を攪拌混合する攪拌機、攪拌機によって攪拌混合された混合物中のバイオマスを混合物中の非金属系触媒を利用して所定の条件下で熱水処理することによりバイオマスのスラリー体を形成する第１の加圧熱水処理装置、第１の加圧熱水処理装置で熱水処理を行うことにより得られたバイオマスのスラリー体を非金属系触媒を利用して所定の条件下で熱水処理することにより燃料ガスを生成する第２の加圧熱水処理装置、第２の加圧熱水処理装置から排出されるガスを冷却する冷却装置、冷却装置によって冷却された排出ガスに含まれるガス成分と水とを分離する分離器等を備えたバイオマスガス化システムであって、このシステムの第１の加圧熱水処理装置に、非金属系触媒の存在下においてバイオマスを１００〜２５０℃の範囲内の温度、及び０．１〜４ＭＰａの範囲内の圧力の条件下で熱水処理を行わせ、第２の加圧熱水処理装置に、第１の加圧熱水処理装置による熱水処理により得られた非金属系触媒を含むバイオマスのスラリー体を、３７４℃以上の温度、及び２２．１ＭＰａ以上の圧力の条件下で熱水処理を行わせることにより燃料ガスの生成効率を向上させたものである。 Patent Document 4 describes an example of an energy conversion technique that can efficiently generate fuel gas from biomass.
In this energy conversion technology, biomass and non-metallic catalyst are stirred and mixed, and biomass in the mixture stirred and mixed by the stirrer is hydrothermally treated under predetermined conditions using the non-metallic catalyst in the mixture. The first pressurized hot water treatment apparatus for forming a biomass slurry body by using the first pressurized hot water treatment apparatus, the biomass slurry body obtained by performing the hydrothermal treatment in the first pressurized hot water treatment apparatus using a nonmetallic catalyst A second pressurized hot water treatment device that generates fuel gas by performing hot water treatment under a predetermined condition, a cooling device that cools gas discharged from the second pressurized hot water treatment device, and a cooling device. A biomass gasification system including a separator that separates water from a gas component contained in a cooled exhaust gas, and the presence of a nonmetallic catalyst in the first pressurized hot water treatment device of the system under The biomass is subjected to hydrothermal treatment under conditions of a temperature in the range of 100 to 250 ° C. and a pressure in the range of 0.1 to 4 MPa, and the second pressurized hot water treatment apparatus is subjected to the first A biomass slurry containing a non-metallic catalyst obtained by hydrothermal treatment with a pressurized hydrothermal treatment apparatus is subjected to hydrothermal treatment under conditions of a temperature of 374 ° C. or higher and a pressure of 22.1 MPa or higher. Thus, the production efficiency of fuel gas is improved.

ところで、上記のような構成のバイオマスガス化システムにあっては、バイオマスから燃料ガスを効率良く生成することはできるものの、バイオマスが鳥類の***物（羽根が混入している鶏糞）を含むものである場合、攪拌機でバイオマスを攪拌混合する前に破砕機で所定の大きさに破砕する際に、鳥類の羽根が破砕機の回転部に絡みつき、回転部の回転を不能にすることがある。このため、破砕機を連続運転することができず、システムの連続運転を行うことが困難になり、燃料ガスを効率良く生成することができない。
特表平１１−５０２８９１号公報 特開２００２−１０５４６６号公報 特開２００２−１０５４６７号公報 特開２００６−２７４０１３号公報 By the way, in the biomass gasification system configured as described above, although the fuel gas can be efficiently generated from the biomass, the biomass contains the excrement of birds (chicken manure mixed with feathers) When the biomass is crushed to a predetermined size by the crusher before the biomass is stirred and mixed by the stirrer, the bird's blade may get entangled with the rotating part of the crusher, and the rotation of the rotating part may be disabled. For this reason, the crusher cannot be operated continuously, it becomes difficult to perform continuous operation of the system, and fuel gas cannot be generated efficiently.
Japanese National Patent Publication No. 11-502891 JP 2002-105466 A JP 2002-105467 A JP 2006-274013 A

本発明は、上記のような従来の問題に鑑みなされたものであって、原料としてのバイオマスが異物（鳥類の羽根）を含むものであっても、バイオマスから異物（鳥類の羽根）を確実に除去することができ、これにより、バイオマスを破砕する破砕機を停止させることなく連続運転することができ、バイオマスガス化システムを連続運転して燃料ガスを効率良く生成することができるバイオマスの異物除去装置を提供することを目的とする。   The present invention has been made in view of the above-described conventional problems, and even if the biomass as a raw material contains foreign matter (bird feathers), the foreign matter (bird feathers) can be reliably removed from the biomass. It is possible to remove the foreign matter from the biomass that can be continuously operated without stopping the crusher that crushes the biomass, and the biomass gasification system can be continuously operated to efficiently generate the fuel gas. An object is to provide an apparatus.

上記のような課題を解決するために、本発明は、以下のような手段を採用している。
すなわち、本発明は、バイオマスが貯留される原料タンクと、該原料タンクから供給されるバイオマスを破砕処理する破砕手段とを備えた原料供給手段と、該原料供給手段から供給されるバイオマスをガス化処理することにより燃料ガスを生成するガス化処理手段とを備えたバイオマスガス化システムに用いられ、前記原料タンクから前記破砕手段に供給されるバイオマスに含まれる異物を取り除くバイオマスの異物除去装置であって、前記原料タンクに回転可能に設けられる攪拌手段と、前記攪拌手段に一体に設けられて攪拌手段と一体に回転可能であるとともに、回転時に前記原料タンク内のバイオマスに含まれる異物を捕捉する捕捉手段とを備え、前記攪拌手段は、前記原料タンクの中心部に軸線が鉛直方向を向くように回転可能に設けられる回転軸と、該回転軸に放射状に一体に設けられる複数の攪拌羽根とからなり、前記捕捉手段は、前記攪拌羽根に鉛直方向を向くように一体に設けられる複数の捕捉棒からなることを特徴とする。 In order to solve the above problems, the present invention employs the following means.
That is, the present invention provides a raw material supply means comprising a raw material tank in which biomass is stored, a crushing means for crushing the biomass supplied from the raw material tank, and a biomass supplied from the raw material supply means. A biomass foreign matter removing apparatus that is used in a biomass gasification system comprising a gasification treatment means for generating fuel gas by processing and removes foreign matters contained in biomass supplied from the raw material tank to the crushing means. Te, a stirring means rotatably provided the material tank, as well as a rotatable integrally with the stirring means is provided integrally with the stirring means, to capture foreign matters contained in the biomass in the material tank during rotation and a catching means, said stirring means is rotatably set to the axis in the center of the material tank is oriented vertically A rotary shaft which is composed of a plurality of stirring blades provided integrally radially to the rotation axis, wherein the catching means, in that it consists of a plurality of capture rods integrally provided so as to face the vertical direction to the stirring blade Features.

本発明のバイオマスの異物除去装置によれば、原料供給手段の原料タンク内において、攪拌手段の回転軸を回転させることにより、回転軸と一体に複数の攪拌羽根及び捕捉手段の複数の捕捉棒が回転軸の軸線周りに回転され、原料タンク内に貯留されたバイオマスが撹拌されるとともに、バイオマスに含まれる異物が捕捉手段の複数の捕捉棒に絡み付いて捕捉され、バイオマス中から異物が除去される。そして、異物が除去されたバイオマスは、原料タンクから破砕手段に供給されて所定の大きさに破砕され、破砕手段からガス化処理手段に供給されてガス化処理されることにより燃料ガスが生成されることになる。 According to the biomass foreign matter removing apparatus of the present invention , by rotating the rotating shaft of the stirring means in the raw material tank of the raw material supply means, a plurality of stirring blades and a plurality of capturing rods of the capturing means are integrated with the rotating shaft. The biomass that is rotated around the axis of the rotating shaft and stored in the raw material tank is agitated, and the foreign substances contained in the biomass are caught and caught by the plurality of trapping rods of the trapping means, and the foreign substances are removed from the biomass. . Then, the biomass from which the foreign matter has been removed is supplied from the raw material tank to the crushing means and crushed to a predetermined size, and is supplied from the crushing means to the gasification processing means and gasified to produce fuel gas. Will be .

また、本発明において、前記バイオマスは、鳥類の糞であり、前記異物は鳥類の羽根であることとしてもよい。 Further, in the present invention, before Symbol biomass is feces of birds, it is also possible the foreign substance is a blade of birds.

本発明のバイオマスの異物除去装置によれば、原料タンク内のバイオマス（鳥類の糞）に含まれる鳥類の羽根が捕捉手段の捕捉棒に絡み付くことによって捕捉され、鳥類の羽根が含まれていないバイオマス（鳥類の糞）が原料タンクから破砕手段に供給されることになる。 According to the biomass foreign matter removing apparatus of the present invention , biomass that is captured by entwining the blades of the birds contained in the biomass (bird droppings) in the raw material tank with the capture rod of the capture means and does not include the bird blades. (Bird droppings) will be supplied from the raw material tank to the crushing means.

また、本発明において、前記攪拌手段は、前記原料タンクに着脱自在に設けられていることとしてもよい。 Moreover, in this invention, the said stirring means is good also as being provided in the said raw material tank so that attachment or detachment is possible.

本発明のバイオマスの異物除去装置によれば、攪拌手段を原料タンク内に装着し、攪拌手段の回転軸を回転させて、回転軸と一体に攪拌羽根を回転させることにより、攪拌羽根と一体に捕捉手段の捕捉棒が回転軸の軸線周りに回転し、バイオマス中に含まれる異物（鳥類の羽根）が捕捉棒に絡み付いて捕捉される。また、攪拌手段の回転軸及び攪拌羽根を原料タンクから取り外すことにより、攪拌手段の回転軸及び攪拌羽根と一体に捕捉手段の捕捉棒を原料タンクから取り外すことができ、捕捉手段の捕捉棒に絡み付いた異物（鳥類の羽根）を容易に取り除くことができる。 According to the biomass foreign matter removing apparatus of the present invention, the stirring means is mounted in the raw material tank, the rotating shaft of the stirring means is rotated, and the stirring blade is rotated integrally with the rotating shaft, thereby being integrated with the stirring blade. The trapping rod of the trapping means rotates around the axis of the rotation axis, and foreign substances (bird blades) contained in the biomass are entangled and trapped on the trapping rod. In addition, by removing the rotating shaft and stirring blade of the stirring means from the raw material tank, the capture rod of the capturing means can be detached from the raw material tank integrally with the rotating shaft and stirring blade of the stirring means, and entangled with the capturing rod of the capturing means. Foreign matter (bird feathers) can be easily removed .

以上、説明したように、本発明のバイオマスの異物除去装置によれば、原料供給手段の原料タンク内において、攪拌手段の回転軸を回転させることにより、回転軸と一体に複数の攪拌羽根及び捕捉手段の複数の捕捉棒が回転軸の軸線周りに回転され、原料タンク内に貯留されたバイオマスが撹拌されるとともに、バイオマスに含まれる異物が捕捉手段の複数の捕捉棒に絡み付いて捕捉され、バイオマス中から異物が除去される。そして、異物が除去されたバイオマスは、原料タンクから破砕手段に供給されて所定の大きさに破砕され、破砕手段からガス化処理手段に供給されてガス化処理されることにより燃料ガスが生成されることになる。
従って、異物が含まれていないバイオマスを破砕手段に供給して所定の大きさに破砕することができるので、バイオマス中に含まれる異物によって破砕手段による破砕が影響を受けることはない。この結果、破砕手段を連続運転することができるので、原料タンクから破砕手段を介してガス化処理手段にバイオマスを連続して供給することができ、ガス化処理手段によって燃料化ガスを効率よく生成することができる。 As described above, according to the biomass foreign matter removing apparatus of the present invention, by rotating the rotating shaft of the stirring means in the raw material tank of the raw material supply means, a plurality of stirring blades and traps are integrated with the rotating shaft. The plurality of capture rods of the means are rotated around the axis of the rotation axis, the biomass stored in the raw material tank is agitated, and foreign substances contained in the biomass are entangled and captured by the plurality of capture rods of the capture means. Foreign matter is removed from the inside. Then, the biomass from which the foreign matter has been removed is supplied from the raw material tank to the crushing means and crushed to a predetermined size, and is supplied from the crushing means to the gasification processing means and gasified to produce fuel gas. Will be .
Therefore, since the biomass which does not contain foreign substances can be supplied to the crushing means and crushed to a predetermined size, the crushing by the crushing means is not affected by the foreign substances contained in the biomass. As a result, since the crushing means can be operated continuously, biomass can be continuously supplied from the raw material tank to the gasification processing means via the crushing means, and the fuelized gas is efficiently generated by the gasification processing means. can do.

以下、図面を参照しながら本発明の実施の形態について説明する。
図１〜図４には、本発明によるバイオマスの異物除去装置の一実施の形態が示されていて、図１はガス化処理手段の概略構成図、図２は原料供給手段の概略構成図、図３は原料供給手段の変形例の概略構成図、図４は攪拌手段及び捕捉手段の概略図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of a biomass foreign matter removing apparatus according to the present invention. FIG. 1 is a schematic configuration diagram of a gasification processing unit, FIG. 2 is a schematic configuration diagram of a raw material supply unit, FIG. 3 is a schematic configuration diagram of a modified example of the raw material supply unit, and FIG. 4 is a schematic diagram of the stirring unit and the capturing unit.

すなわち、本実施の形態によるバイオマスの異物除去装置１は、バイオマス３５を原料として燃料ガスを生成するバイオマスガス化システム２に用いられ、バイオマス３５に含まれる異物３６を除去するのに有効なものである。   That is, the biomass foreign matter removing apparatus 1 according to the present embodiment is used in the biomass gasification system 2 that generates fuel gas using the biomass 35 as a raw material, and is effective for removing the foreign matter 36 contained in the biomass 35. is there.

バイオマスガス化システム２は、バイオマス３５をガス化処理して燃料ガスを生成するガス化処理手段２０と、ガス化処理手段２０に原料としてのバイオマス３５を供給する原料供給手段３とを備え、バイオマス３５には、鶏等の鳥類の***物（異物３６として鳥類の羽根が混入している鶏糞等）を含むものが用いられる。   The biomass gasification system 2 includes a gasification processing unit 20 that gasifies the biomass 35 to generate fuel gas, and a raw material supply unit 3 that supplies the gasification processing unit 20 with biomass 35 as a raw material. 35 includes those containing excrement of birds such as chickens (such as chicken manure mixed with bird feathers as foreign matter 36).

原料供給手段３は、後述するガス化処理手段２０の攪拌機２１の上流側に設けられる第１原料タンク４及び第２原料タンク６と、第１原料タンク４と第２原料タンク６との間に設けられる破砕機７と、第１原料タンク４内に着脱可能に設けられる攪拌手段８及び捕捉手段１２と、第１原料タンク４、破砕機７、及び第２原料タンク６をそれらの順にガス化処理手段２０の攪拌機２１に接続する原料供給管１５とを備え、攪拌手段８と捕捉手段１２とによってバイオマスの異物除去装置１が構成されている。   The raw material supply means 3 is provided between a first raw material tank 4 and a second raw material tank 6 provided between the first raw material tank 4 and the second raw material tank 6 on the upstream side of the agitator 21 of the gasification processing means 20 described later. The crusher 7 provided, the stirring means 8 and the capture means 12 provided detachably in the first raw material tank 4, and the first raw material tank 4, the crusher 7, and the second raw material tank 6 are gasified in that order. The raw material supply pipe 15 connected to the stirrer 21 of the processing means 20 is provided, and the biomass foreign matter removing apparatus 1 is configured by the stirring means 8 and the capturing means 12.

第１原料タンク４は、上部が開口する略円筒状で下部が円錐状に形成されたものであって、内部に所定量のバイオマス３５が貯留される。第１原料タンク４の内部には、バイオマスの異物除去装置１の攪拌手段８及び捕捉手段１２が着脱可能に設けられ、このバイオマスの異物除去装置１の攪拌手段８と捕捉手段１２との協働により、第１原料タンク４内でバイオマス３５が攪拌されるとともに、バイオマス３５中に含まれる異物３６である鳥類の羽根が捕捉されて除去される。
第１原料タンク４内で攪拌されたバイオマス３５は、水又はバイオマス３５のヘッド圧により、第１原料タンク４から後述する粉砕機７へ送給される。 The first raw material tank 4 is formed in a substantially cylindrical shape with an upper portion opened and a lower portion formed in a conical shape, and a predetermined amount of biomass 35 is stored therein. Inside the first raw material tank 4, the stirring means 8 and the capturing means 12 of the biomass foreign matter removing apparatus 1 are detachably provided, and the stirring means 8 and the capturing means 12 of the biomass foreign matter removing apparatus 1 cooperate with each other. As a result, the biomass 35 is agitated in the first raw material tank 4, and the bird blades that are the foreign matter 36 contained in the biomass 35 are captured and removed.
The biomass 35 stirred in the first raw material tank 4 is fed from the first raw material tank 4 to the pulverizer 7 described later by water or the head pressure of the biomass 35.

攪拌手段８は、駆動モータ９と、駆動モータ９の駆動軸９ａに取付けられて駆動軸９ａと一体に回転駆動する回転軸１０と、回転軸１０の先端に傘型に放射状に一体に取り付けられて回転軸１０と一体に回転駆動する複数の攪拌羽根１１とを備えている。   The stirring means 8 is attached integrally to the drive motor 9, the rotary shaft 10 that is attached to the drive shaft 9 a of the drive motor 9 and rotationally driven integrally with the drive shaft 9 a, and is attached to the tip of the rotary shaft 10 radially in an umbrella shape. And a plurality of stirring blades 11 that rotate integrally with the rotary shaft 10.

攪拌手段８は、第１原料タンク４の上部を閉塞する上蓋５に一体に取り付けられ、上蓋５を第１原料タンク４の上部に着脱させることにより、上蓋５と一体に第１原料タンク４に着脱される。攪拌手段８は、上蓋５を第１原料タンク４の上部に取り付けたときに、回転軸１０が第１原料タンク４の中心部に配置され、攪拌羽根１１が第１原料タンク４の底部に配置される。
なお、攪拌羽根１１を回転軸１０に複数段に設けて、攪拌羽根１１が第１原料タンク４の全高に亘って複数段に配置されるように構成してもよい。 The stirring means 8 is integrally attached to the upper lid 5 that closes the upper portion of the first raw material tank 4, and the upper lid 5 is attached to and detached from the upper portion of the first raw material tank 4 so that the first raw material tank 4 is integrated with the upper lid 5. Detachable. When the upper lid 5 is attached to the upper part of the first raw material tank 4, the stirring means 8 has the rotating shaft 10 disposed at the center of the first raw material tank 4 and the stirring blade 11 disposed at the bottom of the first raw material tank 4. Is done.
The stirring blades 11 may be provided in a plurality of stages on the rotating shaft 10 so that the stirring blades 11 are arranged in a plurality of stages over the entire height of the first raw material tank 4.

捕捉手段１２は、各攪拌羽根１１に一体に立設される複数の棒状の捕捉棒１３を備え、この捕捉棒１３を攪拌羽根１１と一体に回転させることにより、第１原料タンク４内でバイオマス３５が攪拌されるとともに、バイオマス３５中に含まれる異物３６である鳥類の羽根が捕捉棒１３に絡み付いて捕捉される。捕捉手段１２の捕捉棒１３で捕捉した異物３５は、第１原料タンク４から上蓋５と一体に攪拌手段８及び捕捉手段１１を取り外すことにより、容易に取り除くことができる。
なお、捕捉手段１２は、棒状の捕捉棒１３に限らず、板状、鉤状等の他の形状に形成してもよい。要は、バイオマス３５中に含まれる異物３６（鳥類の羽根）を捕捉できる形状であればよい。 The capture means 12 includes a plurality of rod-shaped capture rods 13 that are integrally provided on the respective stirring blades 11, and rotates the capture rods 13 together with the stirring blades 11, so that the biomass in the first raw material tank 4 is obtained. 35 is agitated, and bird feathers, which are foreign matter 36 contained in biomass 35, are entangled with capture rod 13 and captured. The foreign matter 35 captured by the capture rod 13 of the capture means 12 can be easily removed by removing the stirring means 8 and the capture means 11 integrally with the upper lid 5 from the first raw material tank 4.
The capturing means 12 is not limited to the rod-shaped capturing rod 13 and may be formed in other shapes such as a plate shape and a bowl shape. In short, any shape that can capture the foreign matter 36 (bird feathers) contained in the biomass 35 may be used.

破砕機７は、第１原料タンク４内で異物３６（鳥類の羽根）を除去したバイオマス３５を所定の大きさ（本実施の形態では８００μｍ程度の大きさ）に破砕するものであって、例えば、ケーシングと、ケーシングの中心部に回転可能に設けられる回転軸と、回転軸に一体に設けられる破砕羽根と、回転軸を回転駆動させる駆動モータとを構成されている。   The crusher 7 crushes the biomass 35 from which the foreign material 36 (bird blades) has been removed in the first raw material tank 4 into a predetermined size (a size of about 800 μm in the present embodiment). The casing includes a rotating shaft that is rotatably provided at the center of the casing, a crushing blade that is provided integrally with the rotating shaft, and a drive motor that rotationally drives the rotating shaft.

破砕機７の破砕羽根の回転により、第１原料タンク４から破砕機７のケーシング内に供給されるバイオマス３５が所定の大きさに破砕される。破砕機７で破砕されたバイオマス３５は、原料供給管１５を介して第２原料タンク６に供給され、第２原料タンク６から原料供給管１５を介してガス化処理手段２０の攪拌機２１に供給される。
この場合、図３に示すように、粉砕機７と第２原料タンク６とを接続する原料供給管１５の途中に、粉砕機７で粉砕したバイオマス３５を第１原料タンク４に戻す循環ライン１６を設け、この循環ライン１６を介して粉砕機７と第１原料タンク４との間でバイオマス３５を循環させて、バイオマス３５の粒度を下げた後に第２原料タンク６に供給するように構成してもよい。循環ライン１６を用いる場合には、循環ライン１６の途中に設けた開閉バルブ１７を「開」状態とし、第２原料タンク６の入口側の開閉バルブ１８を「閉」とする。 By the rotation of the crushing blades of the crusher 7, the biomass 35 supplied from the first raw material tank 4 into the casing of the crusher 7 is crushed into a predetermined size. The biomass 35 crushed by the crusher 7 is supplied to the second raw material tank 6 through the raw material supply pipe 15 and supplied from the second raw material tank 6 to the stirrer 21 of the gasification processing means 20 through the raw material supply pipe 15. Is done.
In this case, as shown in FIG. 3, a circulation line 16 for returning the biomass 35 pulverized by the pulverizer 7 to the first raw material tank 4 in the middle of the raw material supply pipe 15 connecting the pulverizer 7 and the second raw material tank 6. The biomass 35 is circulated between the pulverizer 7 and the first raw material tank 4 through the circulation line 16 so that the particle size of the biomass 35 is reduced and then supplied to the second raw material tank 6. May be. When the circulation line 16 is used, the opening / closing valve 17 provided in the middle of the circulation line 16 is set to the “open” state, and the opening / closing valve 18 on the inlet side of the second raw material tank 6 is set to “closed”.

ガス化処理手段２０は、原料供給手段３から供給されるバイオマス３５と非金属系触媒（活性炭、ゼオライト等）とを一緒に攪拌混合する攪拌機２１、攪拌機２１によって攪拌混合された混合物中のバイオマス３５を混合物中の非金属系触媒を利用して所定の条件下で熱水処理することによりバイオマス３５のスラリー体を形成する第一の加圧熱水処理装置２６、第一の加圧熱水処理装置２６で熱水処理を行うことにより得られたバイオマス３５のスラリー体を非金属系触媒を利用して所定の条件下で熱水処理することにより燃料ガスを生成する第二の加圧熱水処理装置２８、第二の加圧熱水処理装置２８から排出される燃料ガスを冷却する冷却装置２９、冷却装置２９によって冷却された排出ガスに含まれるガス成分と水とを分離する分離器３０等を備えている。   The gasification processing means 20 is a stirrer 21 that stirs and mixes the biomass 35 supplied from the raw material supply means 3 and a nonmetallic catalyst (activated carbon, zeolite, etc.) together, and the biomass 35 in the mixture stirred and mixed by the stirrer 21. A first pressurized hot water treatment device 26 for forming a slurry body of biomass 35 by hydrothermally treating the mixture with a non-metallic catalyst in a mixture under a predetermined condition, and a first pressurized hot water treatment Second pressurized hot water that generates fuel gas by subjecting a slurry of biomass 35 obtained by performing hydrothermal treatment in the apparatus 26 to hydrothermal treatment under predetermined conditions using a non-metallic catalyst The processing device 28, the cooling device 29 that cools the fuel gas discharged from the second pressurized hot water processing device 28, and the separation that separates the gas component and the water contained in the exhaust gas cooled by the cooling device 29 It is equipped with a 30 and the like.

そして、上記のような構成のバイオマスガス化システム２を利用してバイオマス３５から燃料ガスを生成するには、まず、原料供給手段３によって所定の大きさに破砕したバイオマス３５をガス化処理手段２０の攪拌機２１に供給し、攪拌機２１によってバイオマス３５と非金属系触媒（活性炭、ゼオライト等）とを一緒に攪拌混合し、この混合物を供給ポンプ２２によって攪拌機２１から熱交換機２３を介して第一の加圧熱水処理装置２６に供給し、このバイオマス３５を第一の加圧熱水処理装置２６において非金属系触媒の存在下で所定の条件下（１００〜２５０℃の範囲内の温度、及び０．１〜４ＭＰａの圧力の条件下）で熱水処理することにより、バイオマス３５のスラリー体を形成する。   And in order to produce | generate fuel gas from the biomass 35 using the biomass gasification system 2 of the above structures, first, the biomass 35 which was crushed into the predetermined magnitude | size by the raw material supply means 3 is gasified processing means 20. The biomass 35 and the nonmetallic catalyst (activated carbon, zeolite, etc.) are stirred and mixed together by the stirrer 21, and this mixture is fed from the stirrer 21 through the heat exchanger 23 to the first by the feed pump 22. The biomass 35 is supplied to the pressurized hot water treatment device 26 in the first pressurized hot water treatment device 26 in the presence of a nonmetallic catalyst (temperature in the range of 100 to 250 ° C., and A slurry body of biomass 35 is formed by hydrothermal treatment under conditions of a pressure of 0.1 to 4 MPa.

そして、第一の加圧熱水処理装置２６で得られた非金属系触媒を含むバイオマス３５のスラリー体を高圧ポンプ２７で圧力をかけながら熱交換機２４及び加熱装置３１を介して第二の加圧熱水処理装置２８に供給し、第二の加圧熱水処理装置２８において非金属系触媒の存在下で所定の条件下（３７４℃以上の温度、及び２２．１ＭＰａ以上の圧力の条件下）で熱水処理することにより、燃料ガスを生成する。   Then, the slurry 35 of the biomass 35 containing the nonmetallic catalyst obtained by the first pressurized hot water treatment device 26 is subjected to the second addition via the heat exchanger 24 and the heating device 31 while applying pressure with the high-pressure pump 27. The pressure hot water treatment device 28 is supplied, and in the second pressurized hot water treatment device 28, in the presence of a nonmetallic catalyst, under a predetermined condition (temperature of 374 ° C. or higher, and pressure of 22.1 MPa or higher) ) To produce fuel gas.

そして、第二の加圧熱水処理装置２８から排出される燃焼ガスを、熱交換機２５、及び冷却装置２９を介して分離器３０に供給し、公知の気液分離技術によってガス成分と水とに分離することにより、水素、メタン、エタン、プロパン等の燃料ガスを生成することができる。   And the combustion gas discharged | emitted from the 2nd pressurized hot water processing apparatus 28 is supplied to the separator 30 via the heat exchanger 25 and the cooling device 29, and a gas component, water, and water are known by a well-known gas-liquid separation technique. By separating into the above, fuel gas such as hydrogen, methane, ethane, propane or the like can be generated.

上記のように構成した本実施の形態によるバイオマスの異物除去装置１にあっては、攪拌手段８と捕捉手段１２との協働によってバイオマス３５中に含まれる異物３６（鳥類の羽根）を捕捉して除去するように構成したので、バイオマス３５を所定の大きさに破砕する破砕機７の回転部（回転軸、破砕羽根等）に異物３６（鳥類の羽根）が絡み付いて回転を不能にするようなことはない。   In the biomass foreign matter removing apparatus 1 according to the present embodiment configured as described above, the foreign matter 36 (bird blades) contained in the biomass 35 is captured by the cooperation of the stirring means 8 and the capturing means 12. So that foreign matter 36 (bird blades) is entangled with the rotating part (rotary shaft, crushing blades, etc.) of the crusher 7 that crushes the biomass 35 into a predetermined size. There is nothing wrong.

従って、破砕機７を連続運転することができるので、原料供給手段３から原料としてのバイオマス３５が供給されるガス化処理手段２０を連続運転することが可能となり、バイオマス３５から燃料ガスを効率良く生成することができる。   Therefore, since the crusher 7 can be continuously operated, the gasification processing means 20 to which the biomass 35 as the raw material is supplied from the raw material supply means 3 can be continuously operated, and the fuel gas is efficiently supplied from the biomass 35. Can be generated.

本発明によるバイオマスの異物除去装置の一実施の形態のガス化処理手段の概略構成図である。It is a schematic block diagram of the gasification process means of one Embodiment of the foreign material removal apparatus of biomass by this invention. 原料供給手段の概略構成図である。It is a schematic block diagram of a raw material supply means. 原料供給手段の変形例の概略構成図である。It is a schematic block diagram of the modification of a raw material supply means. 攪拌手段及び捕捉手段の概略図である。It is the schematic of a stirring means and an acquisition means.

１ バイオマスの異物除去装置
２ バイオマスガス化システム
３ 原料供給手段
４ 第１原料タンク
５ 上蓋
６ 第２原料タンク
７ 破砕機
８ 攪拌手段
９ 駆動モータ
９ａ 駆動軸
１０ 回転軸
１１ 攪拌羽根
１２ 捕捉手段
１３ 捕捉棒
１５ 原料供給管
１６ 循環ライン
１７ 開閉バルブ
１８ 開閉バルブ
２０ ガス化処理手段
２１ 攪拌機
２２ 供給ポンプ
２３ 熱交換機
２４ 熱交換機
２５ 熱交換機
２６ 第一の加圧熱水処理装置
２７ 高圧ポンプ
２８ 第二の加圧熱水処理装置
２９ 冷却装置
３０ 分離器
３１ 加熱装置
３５ バイオマス
３６ 異物 DESCRIPTION OF SYMBOLS 1 Biomass foreign substance removal apparatus 2 Biomass gasification system 3 Raw material supply means 4 1st raw material tank 5 Upper cover 6 2nd raw material tank 7 Crusher 8 Agitation means 9 Drive motor 9a Drive shaft 10 Rotating shaft 11 Stirring blade 12 Capture means 13 Capture Rod 15 Raw material supply pipe 16 Circulation line 17 Open / close valve 18 Open / close valve 20 Gasification processing means 21 Stirrer 22 Supply pump 23 Heat exchanger 24 Heat exchanger 25 Heat exchanger 26 First pressurized hot water treatment device 27 High pressure pump 28 Second Pressurized hot water treatment device 29 Cooling device 30 Separator 31 Heating device 35 Biomass 36 Foreign matter

Claims (3)

バイオマスが貯留される原料タンクと、該原料タンクから供給されるバイオマスを破砕処理する破砕手段とを備えた原料供給手段と、該原料供給手段から供給されるバイオマスをガス化処理することにより燃料ガスを生成するガス化処理手段とを備えたバイオマスガス化システムに用いられ、前記原料タンクから前記破砕手段に供給されるバイオマスに含まれる異物を取り除くバイオマスの異物除去装置であって、
前記原料タンクに回転可能に設けられる攪拌手段と、前記攪拌手段に一体に設けられて攪拌手段と一体に回転可能であるとともに、回転時に前記原料タンク内のバイオマスに含まれる異物を捕捉する捕捉手段とを備え
前記攪拌手段は、前記原料タンクの中心部に軸線が鉛直方向を向くように回転可能に設けられる回転軸と、該回転軸に放射状に一体に設けられる複数の攪拌羽根とからなり、
前記捕捉手段は、前記攪拌羽根に鉛直方向を向くように一体に設けられる複数の捕捉棒からなることを特徴とするバイオマスの異物除去装置。 A raw material tank comprising a raw material tank for storing biomass, a crushing means for crushing the biomass supplied from the raw material tank, and a fuel gas by gasifying the biomass supplied from the raw material supply means A biomass gasification system comprising a gasification processing means for producing a biomass foreign matter removal apparatus that removes foreign matters contained in biomass supplied to the crushing means from the raw material tank,
A stirring means rotatably provided on the raw material tank, said with stirring means is rotatable integrally with the stirring means is provided integrally with the capture means for capturing foreign matters contained in the biomass in the material tank during rotation And with
The stirring means comprises a rotating shaft that is rotatably provided in the center of the raw material tank so that the axis is oriented in the vertical direction, and a plurality of stirring blades that are radially integrated with the rotating shaft,
The biomass foreign matter removing apparatus , wherein the trapping means comprises a plurality of trap bars that are integrally provided so as to face the stirring blade in the vertical direction . 前記バイオマスは、鳥類の糞であり、前記異物は鳥類の羽根であることを特徴とする請求項１に記載のバイオマスの異物除去装置。   The biomass foreign matter removing apparatus according to claim 1, wherein the biomass is bird droppings, and the foreign matter is a bird feather. 前記攪拌手段は、前記原料タンクに着脱自在に設けられていることを特徴とする請求項１又は２に記載のバイオマスの異物除去装置。 The biomass foreign matter removing apparatus according to claim 1 , wherein the stirring unit is detachably provided on the raw material tank .
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