JP5660793B2 - Biomass pulverized material manufacturing apparatus and biomass pulverized material manufacturing method using the same - Google Patents

Biomass pulverized material manufacturing apparatus and biomass pulverized material manufacturing method using the same Download PDF

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JP5660793B2
JP5660793B2 JP2010074726A JP2010074726A JP5660793B2 JP 5660793 B2 JP5660793 B2 JP 5660793B2 JP 2010074726 A JP2010074726 A JP 2010074726A JP 2010074726 A JP2010074726 A JP 2010074726A JP 5660793 B2 JP5660793 B2 JP 5660793B2
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顕弘 山本
顕弘 山本
慎吾 東山
慎吾 東山
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モリマシナリー株式会社
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本発明は、植物原料からバイオマス粉砕物を製造するバイオマス粉砕物製造装置とこれを用いたバイオマス粉砕物製造方法とに関する。   The present invention relates to a biomass pulverized material production apparatus for producing a biomass pulverized material from plant raw materials and a biomass pulverized material production method using the same.
バイオマス粉砕物は、間伐材や木材の端材、廃材のほか、古紙等の植物原料を細かく粉砕することにより、製造される。特許文献1は、植物原料(木質バイオマス)の粗粒子から微細なバイオマス粉砕物(木質バイオマス粒子)を製造する方法であって、乾燥させた粗粒子に水を加える前処理工程後、前記粗粒子を機械的に粉砕するバイオマス粉砕物製造方法(木質バイオマス粒子の製造方法)を、前処理装置、粉砕機及び回収装置から構成されるバイオマス粉砕物製造装置(木質バイオマス粒子の製造装置)に用いる(特許文献1[請求項1][請求項6])。粉砕機は、スイングハンマがライニング(被衝撃板)の内側を高速回転する構成で、スイングハンマとライニングとの間における衝撃、磨砕、せん断や粗粒子同士の衝突による自己粉砕も利用して、植物原料の粗粒子を微粉砕する(特許文献1[0031])。   Biomass pulverized products are produced by finely pulverizing plant materials such as waste paper, as well as thinned timber, wood timber, and waste wood. Patent Document 1 is a method for producing a finely pulverized biomass (woody biomass particle) from coarse particles of plant raw material (woody biomass), and after the pretreatment step of adding water to the dried coarse particles, the coarse particles Is used in a biomass pulverized product manufacturing apparatus (wood biomass particle manufacturing apparatus) composed of a pretreatment device, a pulverizer, and a recovery device (a manufacturing method of wood biomass particles). Patent Document 1 [Claim 1] [Claim 6]). The pulverizer is configured so that the swing hammer rotates at high speed inside the lining (impact plate), and also uses self-pulverization due to impact, grinding, shearing and collision of coarse particles between the swing hammer and the lining, The coarse particles of the plant material are pulverized (Patent Document 1 [0031]).
前処理装置は、植物原料の粗粒子を搬送する搬送部と、前記搬送部に沿って配置された加熱器と、前記搬送部の出口にて木質バイオマスの粗粒子に水を加える加水部とを備える(特許文献1[請求項2])。回収装置は、粉砕機内の気体を、粉砕機と回収装置との間に配されたフィルタを介して吸引する吸引装置を備え、フィルタを通過するバイオマス粉砕物は、重力によって落下する一次粒子と、前記吸引装置によって吸引される二次粒子とに分別し(特許文献1[請求項3][請求項4])、更に吸引装置は吸引量を調節する吸引量調節手段を備え、分別される木質バイオマス粒子の粒度分布を調整している(特許文献1[請求項5])。この特許文献1記載の発明によれば、製造されるバイオマス粉砕物は、粒径が数μm〜200μm程度になるとされる(特許文献1[0052])。   The pretreatment device includes a transport unit that transports the coarse particles of the plant raw material, a heater disposed along the transport unit, and a hydration unit that adds water to the coarse particles of the woody biomass at the exit of the transport unit. (Patent Document 1 [Claim 2]). The recovery device includes a suction device that sucks the gas in the pulverizer through a filter disposed between the pulverizer and the recovery device, and the pulverized biomass that passes through the filter includes primary particles that fall due to gravity, Sorting into secondary particles sucked by the suction device (Patent Document 1 [Claim 3] [Claim 4]), and further, the suction device is provided with suction amount adjusting means for adjusting the suction amount, and is classified. The particle size distribution of the biomass particles is adjusted (Patent Document 1 [Claim 5]). According to the invention described in Patent Document 1, the produced pulverized biomass has a particle size of about several μm to 200 μm (Patent Document 1 [0052]).
特許文献2は、植物原料(古紙、廃木材、自然な植物等の植物性有機物)を粉砕乾燥装置に入れ、摩擦熱を主熱源、ヒータを副熱源として水分を蒸発させながら前記植物原料を攪拌及び粉砕する粉砕・乾燥工程を有するバイオマス粉砕物製造方法(植物性有機物粉砕方法)を用いたバイオマス粉砕物製造装置を提案する(特許文献2[請求項1][請求項6])。植物原料は、前処理工程でスライスチップ状にされる(特許文献2[請求項2])。また、粉砕・乾燥工程は、植物原料を低温で処理する第一工程と、植物原料を高温で処理する第二工程とに分かれる(特許文献2[請求項3][請求項4][請求項5])。この特許文献2記載の発明によれば、製造されるバイオマス粉砕物は、粒径が約1μm以下になるとされる(特許文献2[0030])。   In Patent Document 2, plant raw materials (plant organic matter such as waste paper, waste wood, natural plants, etc.) are put into a pulverizing and drying device, and the plant raw materials are stirred while evaporating water using friction heat as a main heat source and heater as a sub heat source. And an apparatus for producing a pulverized biomass product using a method for producing a pulverized biomass product (a method for pulverizing plant organic matter) having a pulverizing / drying step (Patent Document 2 [Claim 1] and [Claim 6]). The plant raw material is sliced into chips in the pretreatment process (Patent Document 2 [Claim 2]). Further, the pulverization / drying step is divided into a first step in which the plant raw material is treated at a low temperature and a second step in which the plant raw material is treated at a high temperature (Patent Document 2 [Claim 3] [Claim 4] [Claim 2]. 5]). According to the invention described in Patent Document 2, the produced pulverized biomass has a particle size of about 1 μm or less (Patent Document 2 [0030]).
特開2008-214531号公報JP 2008-214531 A 特開2007-190487号公報JP 2007-190487 A
バイオマス粉砕物は、例えばエチルアルコールをバイオマス燃料として抽出して利用されることが期待されているが、現実にはそれほど普及していない。これは、バイオマス粉砕物の生産量が少なく、またバイオマス粉砕物の製造コストが高いことに原因がある。これは、単位時間あたりの植物原料の処理量が少ないこと、また必要な消費電力が多いことを意味する。例えば特許文献1が開示するバイオマス粉砕物製造装置は、前処理装置に植物原料の粗粒子を加熱する加熱器を備えており、消費電力の多いことが想像される。これは、既述したように、バイオマス粉砕物の製造コストを高くする問題を招く。また、例示された粉砕機による植物原料の粉砕は限度があり、それほど小さなバイオマス粉砕物を製造できない(最大粒径200μmは大きい)。   Biomass pulverized material is expected to be used by extracting, for example, ethyl alcohol as biomass fuel, but it is not so popular in practice. This is because the production amount of the pulverized biomass is small and the production cost of the pulverized biomass is high. This means that the processing amount of the plant raw material per unit time is small and the necessary power consumption is large. For example, the pulverized biomass production apparatus disclosed in Patent Document 1 includes a heater for heating coarse particles of plant raw material in the pretreatment apparatus, and it is assumed that power consumption is large. As described above, this causes a problem of increasing the manufacturing cost of the pulverized biomass. Moreover, the pulverization of plant raw materials by the exemplified pulverizer has a limit, and it is not possible to produce a pulverized biomass that is so small (the maximum particle size of 200 μm is large).
特許文献2が開示するバイオマス粉砕物製造装置は、粒径が約1μm以下のバイオマス粉砕物を製造できるとするので、バイオマス粉砕物の微細化について問題はないが、植物原料を乾燥させるためにヒータを利用することから、特許文献1同様、消費電力が多くなり、バイオマス粉砕物の製造コストを高くする問題が懸念される。また、特許文献2が開示するバイオマス粉砕物製造装置は、温度の異なる粉砕・乾燥工程である第一工程と第二工程とに対応して、連通する第一粉砕乾燥装置と第二粉砕乾燥装置とが必要で、装置構成が大型化するばかりか、単位時間あたりの植物原料の処理量を多くできないことが想像され、やはりバイオマス粉砕物の製造コストを高くする問題を招く。   The apparatus for producing a pulverized biomass disclosed in Patent Document 2 is capable of producing a pulverized biomass having a particle size of about 1 μm or less, so there is no problem with the refinement of the pulverized biomass, but a heater for drying the plant material Therefore, like Patent Document 1, there is a concern that the power consumption increases and the production cost of the pulverized biomass is increased. Moreover, the biomass pulverized material manufacturing apparatus disclosed in Patent Document 2 corresponds to the first process and the second process, which are pulverization / drying processes at different temperatures, and communicates with the first pulverization / drying apparatus and the second pulverization / drying apparatus. It is imagined that not only the apparatus configuration is increased in size but also the processing amount of the plant raw material per unit time cannot be increased, which also raises the problem of increasing the production cost of the pulverized biomass.
このように、従来見られるバイオマス粉砕物製造装置は、粒径の小さなバイオマス粉砕物を製造する点に問題はないものの、単位時間あたりの植物原料の処理量が少なく、また必要な消費電力が多いことから、バイオマス粉砕物の製造コストが高くなり、十分な供給量で、かつ安価なバイオマス粉砕物を提供することが難しかった。そこで、十分な供給量で、かつ安価なバイオマス粉砕物を提供することを目的として、単位時間あたりの植物原料の処理量を多くし、また必要な消費電力を低減して、バイオマス粉砕物の製造コストを安くするバイオマス粉砕物製造装置を開発し、これを用いたバイオマス粉砕物製造方法を提供するため、検討した。   As described above, the biomass pulverized product producing apparatus that has been conventionally used has no problem in producing a pulverized biomass having a small particle size, but the processing amount of the plant raw material per unit time is small and the required power consumption is large. Therefore, the production cost of the pulverized biomass increased, and it was difficult to provide an inexpensive pulverized biomass with a sufficient supply amount. Therefore, in order to provide a sufficient supply amount and cheap biomass pulverized material, the processing amount of plant raw material per unit time is increased, and the required power consumption is reduced to produce biomass pulverized material. We developed a biomass pulverized material production device that reduces the cost, and studied to provide a biomass pulverized material production method using this device.
検討の結果開発したものが、投入口及び排出口を備えた筒体に、モータにより自転する送りスクリューを内蔵して構成され、筒体は、投入口に繋がる第1室と、排出口に繋がる第3室と、前記第1室及び第3室に挟まれた第2室とに分かれ、送りスクリューの回転軸に隙間を空けて倣う貫通孔を設けた固定臼盤を、第1室下流側端、第2室下流側端、そして第3室下流側端にそれぞれ設け、送りスクリューは、前記固定臼盤の貫通孔に隙間を残して貫通する回転軸に、螺旋羽根を第1室、第2室及び第3室毎に巻き付け、固定臼盤の固定面に近接して回転する回転面を有する回転臼盤を取り付けてなり、固定臼盤の固定面や回転臼盤の回転面は回転軸の延在方向に直交する平面で、固定面に近接して回転面が回転し、筒体と回転臼盤との隙間、固定面及び回転面の隙間、そして送りスクリューの回転軸と固定臼盤の貫通孔との隙間を結ぶ経路を通過する植物原料を前記固定面及び回転面の間で擂り潰すバイオマス粉砕物製造装置である。ここで、「固定面に近接して回転面が回転する」とは、後述するように、回転面と固定面との間で植物原料を擂り潰すことができる程度の隙間を残して固定面に近接した回転面が回転することを意味する。 What was developed as a result of the study was constructed by incorporating a feed screw that rotates by a motor into a cylinder having an inlet and an outlet, and the cylinder is connected to the first chamber connected to the inlet and the outlet. A fixed mortar divided into a third chamber and a second chamber sandwiched between the first chamber and the third chamber and provided with a through hole that follows the rotation shaft of the feed screw with a gap is provided on the downstream side of the first chamber The feed screw is provided at each of the end, the downstream end of the second chamber, and the downstream end of the third chamber. wound every second chamber and third chamber, made by attaching a rotary die plate having a surface of revolution rotates in close proximity to the fixed surface of the fixed die plate, the plane of rotation of the fixed die plate fixed surface or rotating die plate rotating shaft In the plane perpendicular to the extending direction, the rotating surface rotates in the vicinity of the fixed surface, and the gap between the cylinder and the rotating mortar Clearance of the fixed surface and a rotating surface, and in pulverized biomass production apparatus grinding the plant material between the fixed surface and a rotating surface which passes through the path connecting the clearance of the rotation axis of the feed screw and the fixed die plate through-hole There is . In here, the "close to the fixed surface rotating surface rotates", as described later, fixed surface leaving a gap enough to allow grinding the plant material between the rotating surface and the stationary surface It means that the rotating surface close to
本発明のバイオマス粉砕物製造装置は、植物原料を送りスクリューにより移送する際、螺旋羽根の撹拌、混合により同時に植物原料を破砕し、更に回転臼盤の回転面と固定臼盤の固定面との間で植物原料を擂り潰すことにより、微細化されたバイオマス粉砕物を連続的に製造する。送りスクリューは、螺旋羽根のピッチを小さくすることにより、植物原料の撹拌、混合する機会が増え、植物原料をより破砕しやすくなるが、そうすると植物原料を移送する本来の働きが損なわれてしまうので、後述するように、植物原料の破砕を担う回転刃を別途設けることとし、螺旋羽根のピッチは移送に適切な大きさに設定することが望ましい。また、植物原料を擂り潰す回転臼盤の回転面と固定臼盤の固定面とのいずれか一方又は双方を粗雑面にすると、植物原料をより細かく擂り潰すことができる。   In the biomass pulverized material production apparatus of the present invention, when the plant material is transferred by a feed screw, the plant material is simultaneously crushed by stirring and mixing of the spiral blades, and the rotation surface of the rotating mortar and the fixed surface of the fixed mortar By pulverizing the plant raw material in between, the pulverized biomass is continuously produced. By reducing the pitch of the spiral blade, the feed screw has more opportunities to agitate and mix the plant material, making it easier to crush the plant material, but this will impair the original function of transferring the plant material. As will be described later, it is desirable to separately provide a rotary blade for crushing plant raw materials, and to set the pitch of the spiral blades to an appropriate size for transfer. Moreover, if either one or both of the rotating surface of the rotating mortar for crushing the plant material and the fixed surface of the fixed mortar are roughened, the plant material can be crushed more finely.
植物原料は、投入口から筒体に投入され、送りスクリューにより移送されて排出口から排出されるまでの間に粉砕される。これは、植物原料の処理時間が送りスクリューによる移送時間に等しいことを意味する。螺旋羽根の撹拌、混合により植物原料を破砕するには、送りスクリューの回転が速い程よく、この場合、送りスクリューによる移送速度が増加するので、送りスクリューの移送時間、すなわち植物原料の移送時間を短くし、結果として植物原料の単位時間あたりの処理量を多くできる。植物原料の単位時間あたりの処理量は、送りスクリューの本数に応じて増加する。また、螺旋羽根による撹拌、混合による植物原料の破砕や、回転臼盤及び固定臼盤による植物原料の擂り潰しは、いずれも植物原料を加熱することなく、物理的な作用のみで植物原料を粉砕する。これは、消費電力の高いヒータ等を不要にすることを意味し、バイオマス粉砕物製造装置としての必要な消費電力を低減できる。   The plant raw material is charged into the cylinder from the inlet, and is pulverized while being transferred by the feed screw and discharged from the outlet. This means that the processing time of the plant material is equal to the transfer time by the feed screw. In order to crush the plant material by stirring and mixing the spiral blades, it is better that the rotation of the feed screw is faster. In this case, the transfer speed by the feed screw is increased, so the transfer time of the feed screw, that is, the transfer time of the plant material is shortened. As a result, the amount of plant raw material processed per unit time can be increased. The amount of plant raw material processed per unit time increases according to the number of feed screws. In addition, plant materials are crushed by stirring and mixing with a spiral blade, and plant materials are crushed by a rotating mortar and a fixed mortar. To do. This means that a heater or the like with high power consumption is not required, and the power consumption necessary for the pulverized biomass production apparatus can be reduced.
送りスクリューは、周方向に断続して半径方向に突出する複数の突起から構成される回転刃を回転軸に設け、前記回転刃を除いた部分で螺旋羽根を回転軸に巻き付ける構成にするとよい。これにより、送りスクリューの移送速度を低下させずに、回転刃により植物原料を確実に破砕できる。螺旋羽根が植物原料を撹拌、混合して破砕する働きと、植物原料を移送する働きとは、植物原料の破砕が移送の抵抗になることから、相反する働きとなっている。ここで、送りスクリューによる植物原料の移送を速くすれば、植物原料の単位時間の処理量を増やすことができることから、螺旋羽根は主として植物原料を移送する働きを担わせることが好ましい。回転刃は、移送を主の働きとした送りスクリューの螺旋羽根に代わって植物原料を破砕し、螺旋羽根は植物原料の移送、そして回転刃に向けて植物原料を送り込む働きを担う。ここで、送りスクリューの下流ほど植物原料は圧縮を受けて移送し難くなることから、回転刃は第1室又は第2室の回転軸に設けるに留め、第3室は螺旋羽根だけにすることが望ましい。   The feed screw may be configured such that a rotary blade composed of a plurality of protrusions intermittently projecting in the circumferential direction and projecting in the radial direction is provided on the rotary shaft, and the spiral blade is wound around the rotary shaft at a portion excluding the rotary blade. Thereby, a plant raw material can be reliably crushed with a rotary blade, without reducing the transfer speed of a feed screw. The action of the spiral blade stirring and mixing the plant material and crushing the plant material and the function of transferring the plant material are contradictory because the crushing of the plant material becomes resistance to transfer. Here, since the throughput of the plant raw material per unit time can be increased by speeding up the transfer of the plant raw material by the feed screw, it is preferable that the spiral blade mainly serves to transfer the plant raw material. The rotary blade crushes the plant material instead of the spiral blade of the feed screw whose main function is transfer, and the spiral blade is responsible for transferring the plant material and feeding the plant material toward the rotary blade. Here, since the plant raw material is more difficult to be transported by being compressed toward the downstream of the feed screw, the rotary blade is only provided on the rotation shaft of the first chamber or the second chamber, and the third chamber is made only of the spiral blade. Is desirable.
回転臼盤が上流側(投入口に近い側)、固定臼盤が下流側(排出口に近い側)であれば、回転臼盤は下流側の回転面を固定臼盤の上流側の固定面に近接して回転させる。この場合、植物原料は回転臼盤の外周から擂り溝を通って内周に移り、回転軸と固定臼盤の開口との隙間から下流に向かう。逆に、回転臼盤が下流側、固定臼盤が上流側であれば、回転臼盤は上流側の回転面を固定臼盤の下流側の固定面に近接して回転させる。この場合、植物原料は回転軸と固定臼盤の開口との隙間から回転臼盤の内周に至り、前記内周から擂り溝を通って外周から下流に向かう。いずれも、擂り溝に捉えられた植物原料が回転臼盤に連れ回りさせられ、回転面と固定面との間に挟まれて擂り潰され、小さくなったものから前記経路を通って下流に向かう。   If the rotating mortar is upstream (the side close to the inlet) and the fixed mortar is downstream (the side near the outlet), the rotating mortar uses the downstream rotating surface as the fixed surface upstream of the fixed mortar. Rotate close to. In this case, the plant raw material moves from the outer periphery of the rotating mortar to the inner periphery through the turning groove, and goes downstream from the gap between the rotating shaft and the opening of the fixed mortar. On the other hand, if the rotating mortar is downstream and the fixed mortar is upstream, the rotating mortar rotates the upstream rotating surface close to the downstream fixed surface of the fixed mortar. In this case, the plant raw material reaches the inner periphery of the rotating mortar from the gap between the rotating shaft and the opening of the fixed mortar, and goes from the inner periphery to the downstream from the outer periphery through the turning groove. In either case, the plant material caught in the grooving groove is rotated around the rotating mortar, and is sandwiched between the rotating surface and the fixed surface and crushed. .
これから、植物原料を擂り潰す機会を増やすため、送りスクリューは、固定臼盤の貫通孔に隙間を残して貫通する回転軸に、回転面が固定臼盤の固定面に近接して回転する回転臼盤を、前記固定臼盤の上流側及び下流側に一対取り付ける構成にするとよい。この場合、植物原料は上流側の回転臼盤の外周から擂り溝を通って内周に移り、回転軸と固定臼盤の開口との隙間から下流側の回転臼盤の内周に至り、前記内周から擂り溝を通って外周から下流に向かう。固定臼盤を挟む上流側及び下流側の回転臼盤は、同じ仕様(回転面の表面粗度や設けられる擂り溝の断面形状、幅、数)であってもよいし、異なる仕様であってもよいが、両者は近接して配置される関係から、通過させる植物原料の粒径が同程度となるように仕様を揃えることが望ましい。   From now on, in order to increase the chance of crushing plant raw materials, the feed screw has a rotary mill whose rotary surface rotates in close proximity to the fixed surface of the fixed mortar, with a rotary shaft that passes through the through hole of the fixed mortar. A pair of disks may be attached to the upstream side and the downstream side of the fixed mortar. In this case, the plant raw material moves from the outer periphery of the upstream rotary stool to the inner periphery through the turning groove, and reaches the inner periphery of the downstream rotary stool from the gap between the rotation shaft and the opening of the fixed mortar, It goes from the inner periphery to the downstream through the grooving groove. The upstream and downstream rotary mills sandwiching the fixed mortar may have the same specifications (the surface roughness of the rotating surface and the cross-sectional shape, width, and number of grooving grooves provided), or different specifications. However, it is desirable that the specifications should be aligned so that the particle sizes of the plant raw materials to be passed are about the same, because both are arranged close to each other.
上述の通り、植物原料は送りスクリューにより移送される過程で螺旋羽根の撹拌、混合や回転刃により粉砕され、微小なバイオマス粉砕物となる。これから、上流側の回転臼盤及び固定臼盤の擂り潰しと、下流側の回転臼盤及び固定臼盤の擂り潰しとでは、擂り潰す対象となる植物原料の粒径が異なり、前記粒径に応じて、回転臼盤に要求される仕様(回転面の表面粗度や設けられる擂り溝の断面形状、幅、数)を異ならせるとよい。   As described above, the plant raw material is pulverized by stirring, mixing, or rotating blades of the spiral blade in the process of being transferred by the feed screw to become a fine biomass pulverized product. From this, the particle size of the plant raw material to be crushed is different between the crushing of the upstream rotating mortar and the fixed mortar and the crushing of the downstream rotating mortar and the fixed mortar, and the particle size is different from the above. Accordingly, it is preferable that the specifications (the surface roughness of the rotating surface and the cross-sectional shape, width, and number of the grooving grooves provided) required for the rotating mortar are varied.
具体的な回転臼盤は、固定臼盤の固定面に近接して回転する回転面が円環状で、前記回転面を周方向に4等分〜16等分する凹凸を設け、内周及び外周にわたって延びる凹部を擂り溝とする構成がよい。この回転臼盤に対する固定臼盤の固定面は、平坦であってもよいし、後述する擂り溝を設けてもよい。4等分〜16等分する凹凸とは、凸部及び凹部が周方向に等分な幅で、凸部及び凹部の合計が4個〜16個あることを意味する。周方向に4等分〜16等分する凹凸を回転面に設けて形成される凹部は、半径方向に延びる比較的広幅な擂り溝となり、例えば塊状化した植物原料でも擂り溝に入りやすくでき、円滑な植物原料の移送を確保する。これから、回転面を周方向に4等分〜16等分する凹凸を設けた回転臼盤は、植物原料が比較的大きな段階にある第1室後端又は第2室後端に割り当てることが好ましい。   A specific rotating mortar has an annular rotating surface that rotates in the vicinity of the fixed surface of the fixed mortar, and is provided with irregularities that divide the rotating surface into 4 to 16 equal parts in the circumferential direction. The structure which makes the recessed part extended over be a groove is good. The fixed surface of the fixed mortar with respect to the rotary mortar may be flat or may be provided with a groove to be described later. The unevenness divided into 4 to 16 equals means that the convex portions and the concave portions are equally divided in the circumferential direction, and the total of the convex portions and the concave portions is 4 to 16. The concave portion formed by providing the rotation surface with irregularities that divide into 4 to 16 equally in the circumferential direction becomes a relatively wide groove groove extending in the radial direction, and can easily enter the groove groove even with agglomerated plant material, Ensure smooth transfer of plant materials. From this, it is preferable that the rotary mortar provided with irregularities that divide the rotating surface into 4 to 16 parts in the circumferential direction is assigned to the rear end of the first chamber or the rear end of the second chamber where the plant material is at a relatively large stage. .
同様に、固定臼盤は、貫通孔の周縁に沿って固定面を周方向に4等分〜16等分する凹凸を設け、内周及び外周にわたって延びる凹部を擂り溝とする構成がよい。この固定臼盤は、上述の回転臼盤(回転面を周方向に4等分〜16等分する凹凸を設けた回転臼盤)と対に用いるとよい。これから、回転面を周方向に4等分〜16等分する凹凸を設けた固定臼盤は、上述の回転臼盤同様、植物原料が比較的大きな段階にある第1室後端又は第2室後端に割り当てることが好ましい。   Similarly, the fixed mortar is preferably provided with irregularities that divide the fixing surface into 4 to 16 equal parts in the circumferential direction along the peripheral edge of the through hole, and the concave part extending over the inner periphery and the outer periphery is used as a groove. This fixed mortar may be used as a pair with the above-described rotating mortar (a rotating mortar provided with irregularities that divide the rotating surface into four to sixteen parts in the circumferential direction). From now on, the fixed mortar provided with irregularities that divide the rotation surface into 4 to 16 equally in the circumferential direction is the same as the above-mentioned rotation mortar, the rear end of the first chamber or the second chamber where the plant material is at a relatively large stage. It is preferable to assign to the rear end.
また、具体的な回転臼盤は、固定臼盤の固定面に近接して回転する回転面が円環状で、内周の接線方向に延びる1mm〜5mm幅の凹溝を、複数本単位で周方向に角度を変えながら設け、内周及び外周にわたって延びる前記凹溝を擂り溝とする構成にしてもよい。複数本単位で周方向に角度を変えながら回転面に設けた接線方向に延びる1mm〜5mm幅の凹溝は、半径方向に交差した比較的狭幅な擂り溝で、粒径がまだ大きい植物原料(80μm以上)は目詰まりする虞があるが、十分微細化された植物原料(80μm未満)は目詰まりすることなく、回転臼盤の回転面と固定臼盤の固定面との間に前記植物原料を導いて、植物原料をより微細化し、最終的なバイオマス粉砕物の粒径を小さくする。これから、内周の接線方向に延びる1mm〜5mm幅の凹溝を擂り溝とする回転臼盤は、植物原料が十分に小さくなった段階にある第3室後端に割り当てることが好ましい。   In addition, a specific rotating mortar has an annular rotating surface that rotates in the vicinity of the fixed surface of the fixed mortar, and a plurality of concave grooves with a width of 1 mm to 5 mm extending in the tangential direction of the inner periphery. You may make it the structure which provides while changing an angle in a direction, and makes the said concave groove extended over inner periphery and outer periphery into a groove groove. Grooves with a width of 1mm to 5mm extending in the tangential direction provided on the rotating surface while changing the angle in the circumferential direction in multiple units are relatively narrow groove grooves intersecting in the radial direction, and the plant raw material has a large particle size. (80 μm or more) may clog, but sufficiently refined plant raw material (less than 80 μm) does not clog the plant between the rotating surface of the rotating mortar and the fixed surface of the fixed mortar. Guide the raw material, refine the plant raw material and reduce the particle size of the final pulverized biomass. From this, it is preferable to assign the rotary mortar having a groove of 1 mm to 5 mm wide extending in the tangential direction of the inner circumference to the rear end of the third chamber in a stage where the plant raw material has become sufficiently small.
同様に、固定臼盤は、貫通孔の周縁から半径方向に延びる1mm〜5mm幅の凹溝を周方向等間隔で設け、内周及び外周にわたって延びる前記凹溝を擂り溝とする構成にしてもよい。この固定臼盤は、上述の回転臼盤(内周の接線方向に延びる1mm〜5mm幅の凹溝を擂り溝とする回転臼盤)と対に用いるとよい。これから、内周の接線方向に延びる1mm〜5mm幅の凹溝を擂り溝とする固定臼盤は、上述の回転臼盤同様、植物原料が十分に小さくなった段階にある第3室後端に割り当てることが好ましい。   Similarly, the fixed mortar has a configuration in which concave grooves having a width of 1 mm to 5 mm extending in the radial direction from the peripheral edge of the through hole are provided at equal intervals in the circumferential direction, and the concave grooves extending over the inner periphery and the outer periphery are used as grooved grooves. Good. This fixed mortar may be used as a pair with the above-described rotating mortar (a rotating mortar having a concave groove with a width of 1 mm to 5 mm extending in the tangential direction of the inner circumference). From now on, the fixed mortar with the groove of 1-5 mm wide extending in the tangential direction of the inner circumference as the grooving groove is the rear end of the third chamber in the stage where the plant raw material has become sufficiently small like the above-mentioned rotary mortar. It is preferable to assign.
本発明のバイオマス粉砕物製造装置を用いた場合、粗粉砕された植物原料を水に混ぜた液状原料を投入口から筒体に投入し、送りスクリューの螺旋羽根に従って前記液状原料を移送しながら、相対的に回転する回転臼盤及び固定臼盤により前記液状原料中の植物原料を擂り潰し、水に混在するバイオマス粉砕物を排出口から取り出すバイオマス粉砕物製造方法により、バイオマス粉砕物を製造する。粗粉砕された植物原料とは、別の粉砕装置により、平均粒径が7mm(具体的には、外径1mm、長さ15mm程度の短繊維状)とされた植物原料である。このように粗粉砕された植物原料を水に混ぜた液状原料は、送りスクリューの螺旋羽根に詰まることなく、円滑に植物原料が移送できるようにし、前記植物原料が回転臼盤及び固定臼盤で擂り潰されるようにする。本発明は、加熱することなく、物理的な作用のみで植物原料を粉砕するから、このように水に植物原料を混ぜた液状原料を処理対象にできる。   When using the biomass pulverized product production apparatus of the present invention, a liquid raw material obtained by mixing coarsely pulverized plant raw material with water is introduced into a cylinder from an inlet, while transferring the liquid raw material according to a spiral blade of a feed screw, A biomass pulverized product is manufactured by a biomass pulverized product manufacturing method in which a plant raw material in the liquid raw material is crushed by a rotating rotator and a fixed mortar that rotate relatively, and a biomass pulverized product mixed in water is taken out from an outlet. The coarsely pulverized plant material is a plant material having an average particle size of 7 mm (specifically, a short fiber having an outer diameter of about 1 mm and a length of about 15 mm) by a separate pulverizer. The liquid raw material obtained by mixing the coarsely pulverized plant raw material with water allows the plant raw material to be smoothly transferred without clogging the spiral blade of the feed screw. Try to be crushed. In the present invention, the plant raw material is pulverized only by a physical action without being heated, and thus a liquid raw material in which the plant raw material is mixed with water can be used as a treatment target.
本発明のバイオマス粉砕物製造装置は、送りスクリューで移送しながら植物原料を撹拌、混合して粉砕し、更に回転臼盤及び固定臼盤により植物原料を擂り潰すことにより、微細化されたバイオマス粉砕物を製造する。このとき、送りスクリューで移送しながら連続して植物原料を粉砕するため、従来同種のバイオマス粉砕物製造装置に比較して、単位時間あたりの植物原料の処理量を大幅に増やすことができる。また、物理的な作用のみを利用して植物原料を粉砕するため、植物原料を加熱するための電力消費がなく、総じて必要な消費電力を低減できる。こうして、本発明によれば、バイオマス粉砕物の製造コストを抑制し、実用的なバイオマス燃料の抽出を可能にする。また、製造コストの低減は、バイオマス粉砕物を他の利用分野(樹脂材料の強化繊維等)への利用可能性を拡げる。   The apparatus for producing a pulverized biomass of the present invention is a pulverized biomass pulverized by stirring, mixing and pulverizing plant raw materials while being transferred with a feed screw, and further crushing the plant raw materials with a rotating mortar and a fixed mortar. Manufacturing things. At this time, since the plant raw material is continuously pulverized while being transferred by the feed screw, the processing amount of the plant raw material per unit time can be greatly increased as compared with the conventional biomass pulverized material production apparatus. Moreover, since the plant raw material is pulverized using only the physical action, there is no power consumption for heating the plant raw material, and overall necessary power consumption can be reduced. Thus, according to the present invention, the production cost of the pulverized biomass can be suppressed, and a practical biomass fuel can be extracted. In addition, the reduction in production cost expands the possibility of using the pulverized biomass in other fields of use (such as reinforced fibers of resin materials).
送りスクリューに設けた回転刃は、移送に際する植物原料の破砕を担い、螺旋羽根による植物原料の移送を速くすることができるようにして、植物原料の単位時間あたりの処理量を増加させる効果をもたらす。上流側及び下流側の一対の回転臼盤で固定臼盤を挟む構成は、前記回転臼盤及び固定臼盤による擂り潰しの働きを高め、製造されるバイオマス粉砕物の微細化を助ける効果をもたらす。また、第1室〜第3室にかけて、異なる仕様の回転臼盤と固定臼盤との組み合わせを変えることにより、植物原料の破砕の程度に応じて、植物原料の円滑な移送と微細化とを使い分けることができるようにし、総じて製造されるバイオマス粉砕物の微細化を助ける効果をもたらす。   The rotary blade provided in the feed screw is responsible for crushing the plant raw material during the transfer, enabling the transfer of the plant raw material by the spiral blade to be faster, and the effect of increasing the throughput per unit time of the plant raw material Bring. The structure in which the fixed mortar is sandwiched between a pair of upstream and downstream rotary knives enhances the function of crushing by the rotary mortar and the fixed mortar, and brings about an effect of helping refine the pulverized biomass to be produced. . In addition, by changing the combination of a rotating mortar and a fixed mortar with different specifications from the first chamber to the third chamber, smooth transfer and refinement of the plant material can be performed according to the degree of crushing of the plant material. It makes it possible to use properly, and brings about the effect of helping refine the pulverized biomass produced as a whole.
本発明のバイオマス粉砕物製造装置を用いたバイオマス粉砕物製造方法は、粗粉砕された植物原料を水に混ぜた液状原料を処理対象とすることにより、送りスクリューを利用した植物原料の粉砕、微細化を実現する。本発明のバイオマス粉砕物製造装置は、従来同種のバイオマス粉砕物製造装置と異なり、植物原料を加熱することなく、専ら物理的な作用のみにより植物原料を微細化するため、植物原料の含水率が問題とならない。むしろ粗粉砕された植物原料を水に混ぜて液状原料として処理することにより、送りスクリューを利用したバイオマス粉砕物製造方法による植物原料の微細化を可能にし、植物原料の単位時間あたりの処理量を多くしている。   The biomass pulverized material manufacturing method using the biomass pulverized material manufacturing apparatus of the present invention is a method of treating a liquid raw material obtained by mixing a coarsely pulverized plant raw material with water, thereby pulverizing the plant raw material using a feed screw. Realize. Unlike the conventional biomass pulverized material manufacturing apparatus of the same type, the biomass pulverized material manufacturing apparatus of the present invention refines the plant raw material solely by physical action without heating the plant raw material. It doesn't matter. Rather, by mixing the coarsely pulverized plant raw material with water and treating it as a liquid raw material, the plant raw material can be refined by the biomass pulverized product manufacturing method using a feed screw, and the processing amount per unit time of the plant raw material can be reduced. There are many.
本発明を適用したバイオマス粉砕物製造装置の一例を表す部分破断側面図である。It is a partially broken side view showing an example of a biomass ground material manufacturing device to which the present invention is applied. 本例のバイオマス粉砕物製造装置を表す平面図である。It is a top view showing the biomass pulverized material manufacturing apparatus of this example. 本例のバイオマス粉砕物製造装置における送りスクリュー及び固定臼盤のみを抜粋した側面図である。It is the side view which extracted only the feed screw and fixed mortar in the biomass pulverized material manufacturing apparatus of this example. 第1室後端及び第2室後端に割り当てた回転臼盤を回転面側から見た立面図である。It is the elevation which looked at the rotating mortar assigned to the rear end of the 1st chamber and the 2nd chamber from the rotation surface side. 第1室後端及び第2室後端に割り当てた回転臼盤を回転面の裏側から見た立面図である。It is the elevation which looked at the rotary mortar assigned to the rear end of the 1st chamber and the 2nd chamber from the back side of the rotation surface. 第1室後端及び第2室後端に割り当てた固定臼盤を固定面側から見た立面図である。It is the elevation which looked at the fixed mortar assigned to the rear end of the 1st chamber and the 2nd chamber from the fixed surface side. 第1室後端における回転臼盤及び固定臼盤の組付関係を表す平面図である。It is a top view showing the assembly | attachment relationship of the rotary mortar and the fixed mortar in the 1st chamber rear end. 第2室後端における回転臼盤及び固定臼盤の組付関係を表す平面図である。It is a top view showing the assembly | attachment relationship of the rotary mortar and the fixed mortar in the 2nd chamber rear end. 第3室後端に割り当てた回転臼盤を回転面側から見た立面図である。It is the elevation which looked at the rotation mortar assigned to the rear end of the 3rd room from the rotation side. 第3室後端に割り当てた回転臼盤を回転面の裏側から見た立面図である。It is the elevation which looked at the rotary mortar assigned to the rear end of the 3rd room from the back side of the rotation side. 第3室後端に割り当てた固定臼盤を固定面側から見た立面図である。It is the elevation which looked at the fixed mortar assigned to the rear end of the 3rd room from the fixed surface side. 第3室後端における回転臼盤及び固定臼盤の組付関係を表す平面図である。It is a top view showing the assembly | attachment relationship of the rotary mortar and the fixed mortar in the 3rd chamber rear end.
以下、本発明を実施するための形態について図を参照しながら説明する。本発明を適用したバイオマス粉砕物製造装置は、図1及び図2に見られるように、2軸スクリュー型押出機様に構成できる。これは、本発明を適用したバイオマス粉砕物製造装置が、前記2軸スクリュー型押出機を参考にして容易に製造できることを意味し、バイオマス粉砕物製造装置の製造コストを低減させる利点をもたらす。また、2軸スクリュー型押出機様の構成にできることから、送りスクリュー2の仕様や回転数から、単位時間あたりの植物原料の処理量を容易に設定できる利点をもたらす。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The biomass pulverized product manufacturing apparatus to which the present invention is applied can be configured like a twin screw extruder as seen in FIGS. 1 and 2. This means that the pulverized biomass production apparatus to which the present invention is applied can be easily produced with reference to the twin-screw extruder, and has the advantage of reducing the production cost of the pulverized biomass production apparatus. Moreover, since it can be configured as a twin screw type extruder, the processing amount of the plant raw material per unit time can be easily set from the specifications and the rotational speed of the feed screw 2.
本例のバイオマス粉砕物製造装置は、投入口111及び排出口131を備えた筒体1に、モータ3により自転する送りスクリュー2,2を左右一対内蔵して構成される。送りスクリュー2を2本用いる理由は、単位時間あたりの植物原料の処理量を増やすためで、本発明を実施するには送りスクリュー2が1本であってもよいし、3本以上であってもよい。各送りスクリュー2は、モータ3からの回転動力を、減速機31を介して分岐して受け取り、左側(図2中下側、図1中図示)の送りスクリュー2は右回転、右側(図2中上側)の送りスクリュー2は左回転する。モータ3、減速機31及び筒体1は、同一の装置フレーム4に搭載されている。   The biomass pulverized material production apparatus of this example is configured by incorporating a pair of left and right feed screws 2, 2 that are rotated by a motor 3 in a cylindrical body 1 having an inlet 111 and an outlet 131. The reason for using two feed screws 2 is to increase the amount of plant raw material processed per unit time. To implement the present invention, one feed screw 2 or three or more feed screws 2 may be used. Also good. Each feed screw 2 branches and receives the rotational power from the motor 3 via the speed reducer 31, and the feed screw 2 on the left side (lower side in FIG. 2, shown in FIG. 1) rotates rightward and right side (FIG. 2). The middle upper) feed screw 2 rotates counterclockwise. The motor 3, the speed reducer 31, and the cylinder 1 are mounted on the same device frame 4.
筒体1は、上流(図1及び図2中左側)から下流(同図中右側)に向けて分割される枠体から構成されており、枠体相互を繋ぐフランジに挟まれてボルト締めされる固定臼盤14,16,18により、上流から下流に向けて第1室11、第2室12及び第3室13に区画される。第1室11は、ホッパ状の投入口111が設けられている。また、第2室12は、固定臼盤18を介して排出口131に連通している(図2中、排出口131は直接図示できていないため、だいたいの位置を符号で指している)。本例のバイオマス粉砕物製造装置は、粗粉砕された植物原料を水に混ぜた液状原料を粉砕処理することから、排出口131から排出される微粉砕物は水に混ざった液状になっており、例えば排出口131下方に容器に貯留される。   The cylindrical body 1 is composed of a frame body that is divided from the upstream side (left side in FIGS. 1 and 2) to the downstream side (right side in the same figure), and is clamped and bolted by a flange that connects the frame bodies to each other. Are divided into a first chamber 11, a second chamber 12, and a third chamber 13 from upstream to downstream. The first chamber 11 is provided with a hopper-shaped inlet 111. The second chamber 12 communicates with the discharge port 131 via the fixed mortar 18 (in FIG. 2, since the discharge port 131 is not shown directly, the approximate position is indicated by a symbol). Since the biomass pulverized material manufacturing apparatus of this example pulverizes a liquid raw material obtained by mixing coarsely pulverized plant raw material with water, the finely pulverized material discharged from the outlet 131 is in a liquid mixed with water. For example, it is stored in the container below the discharge port 131.
送りスクリュー2は、図3に見られるように、固定臼盤14,16,18それぞれの貫通孔142,162,182に隙間を残して貫通する回転軸21に、第1室11では上流から順に螺旋羽根221、回転刃231及び螺旋羽根222を、第2室12では上流から順に螺旋羽根223、回転刃232、螺旋羽根224及び回転刃233を、そして第3室13では螺旋羽根225を設けている。本例の送りスクリュー2は、螺旋羽根モジュールと回転刃モジュールとを組み付けて構成する。例えば、第1室11は上流から順に螺旋羽根モジュール、螺旋羽根モジュール、回転刃モジュール、そして螺旋羽根モジュール、第2室12は上流から順に螺旋羽根モジュール、回転刃モジュール、螺旋羽根モジュール、そして回転刃モジュール、第3室13はすべて螺旋羽根モジュールである。これから、回転刃231、回転刃232及び回転刃233はすべて同仕様で、回転軸21の半径方向に突出する突起を周方向に断続的に並べた刃列を、回転軸21の長手方向に3列並べて構成されている。   As shown in FIG. 3, the feed screw 2 includes a rotary shaft 21 that passes through the through holes 142, 162, and 182 of the fixed mortars 14, 16, and 18, leaving a gap, and a spiral blade 221 in order from the upstream in the first chamber 11. In the second chamber 12, a spiral blade 223, a rotary blade 232, a spiral blade 224 and a rotary blade 233 are provided in this order from the upstream side, and in the third chamber 13, a spiral blade 225 is provided. The feed screw 2 of this example is configured by assembling a spiral blade module and a rotary blade module. For example, the first chamber 11 has a spiral blade module, a spiral blade module, a rotary blade module, and a spiral blade module in order from the upstream, and the second chamber 12 has a spiral blade module, rotary blade module, spiral blade module, and rotary blade in order from the upstream. The module and the third chamber 13 are all spiral blade modules. From now on, the rotary blade 231, the rotary blade 232, and the rotary blade 233 all have the same specifications, and a blade row in which protrusions protruding in the radial direction of the rotary shaft 21 are intermittently arranged in the circumferential direction is arranged in the longitudinal direction of the rotary shaft 21. It is arranged side by side.
また、送りスクリュー2は、回転軸21の第1室11後端、第2室12後端及び第3室13後端の位置に、各室を区画する固定臼盤14,16,18の固定面141,161,181に近接して回転する回転面151,171,191を有する回転臼盤15,17,19を取り付けている。固定面141,161,181と回転面151,171,191とは、植物原料を擂り潰すことができる程度の隙間を残して固定面に近接させるところ、下流に向かって植物原料が粉砕されていき、擂り潰す対象が小さくなることから、例えば固定面141と回転面151との隙間は1mm、固定面161と回転面171との隙間は0.5mm、そして固定面181と回転面191の隙間は0.1mmと、上流から下流に向かって隙間を小さくしていくとよい。   Further, the feed screw 2 is fixed to the fixed mortars 14, 16, 18 that divide the chambers at the positions of the rear end of the first chamber 11, the rear end of the second chamber 12, and the rear end of the third chamber 13 of the rotary shaft 21. A rotating mortar 15, 17, 19 having rotating surfaces 151, 171, 191 rotating in the vicinity of the surfaces 141, 161, 181 is attached. The fixed surfaces 141, 161, 181 and the rotating surfaces 151, 171, 191 are close to the fixed surface leaving a gap enough to crush the plant material, so that the plant material is crushed downstream, and the object to be crushed becomes smaller For example, the clearance between the fixed surface 141 and the rotating surface 151 is 1 mm, the clearance between the fixed surface 161 and the rotating surface 171 is 0.5 mm, and the clearance between the fixed surface 181 and the rotating surface 191 is 0.1 mm, from upstream to downstream. To make the gap smaller.
本例は、第1室後端に位置する固定臼盤14の上流側及び下流側を固定面141,141としてそれぞれに回転臼盤15,15を割り当て、第2室後端に位置する固定臼盤16の下流側を固定面161として回転臼盤17を割り当て、そして第3室後端に位置する固定臼盤18の上流側を固定面181として回転臼盤19を割り当てている。第2室後端は、固定臼盤16直前が回転刃233であり、固定臼盤16の貫通孔162と回転軸21との隙間に液状原料を送り込む力が弱いので、前記固定臼盤16の上流側に回転臼盤17を割り当てていない。また、第3室後端は、固定臼盤18直後が排出口131であるため、バイオマス粉砕物の排出を妨げないように、前記固定臼盤18の下流側に回転臼盤19を割り当てていない。   In this example, the upstream and downstream sides of the fixed mortar 14 located at the rear end of the first chamber are assigned to the fixed surfaces 141 and 141, respectively, and the rotating mortars 15 and 15 are assigned to the fixed mortars 16 at the rear end of the second chamber. The rotary mortar 17 is assigned as the fixed surface 161 to the downstream side, and the rotary mortar 19 is assigned as the fixed surface 181 to the upstream side of the fixed mortar 18 located at the rear end of the third chamber. The rear end of the second chamber is a rotary blade 233 immediately before the fixed mortar 16 and the force for feeding the liquid material into the gap between the through hole 162 of the fixed mortar 16 and the rotary shaft 21 is weak. The rotary mortar 17 is not assigned to the upstream side. In addition, since the rear end of the third chamber is the discharge port 131 immediately after the fixed mortar 18, the rotating mortar 19 is not assigned to the downstream side of the fixed mortar 18 so as not to disturb the discharge of the pulverized biomass. .
第1室後端の回転臼盤15及び第2室後端の回転臼盤17は、図4及び図5に見られるように、回転面151,171が円環状で、前記回転面151,171を周方向に12等分する凹凸を設け、凸部をそのまま回転面151,171とし、前記凸部に挟まれて半径方向に延びる凹部を擂り溝152,172としている。各回転臼盤15,17は、上述した螺旋羽根モジュール又は回転刃モジュールにボルト止めされる。第1室後端の固定臼盤14及び第2室後端の固定臼盤16は、図6に見られるように、上下に半割された鏡面対称部材を組み付けて構成され、貫通孔142,162の周縁に沿って、固定面141,161を周方向に12等分する凹凸を設け、凸部を残余部分に連続する固定面141,161とし、前記凸部に挟まれて半径方向に延びる凹部を擂り溝143,163としている。本例の固定臼盤14,16は、鏡面対称部材の外周に沿ってシール溝を設け、筒体1に組み付ける際に前記シール溝にシール材を嵌合させる。   As shown in FIGS. 4 and 5, the rotary mortar 15 at the rear end of the first chamber and the rotary mortar 17 at the rear end of the second chamber have rotating surfaces 151 and 171 having an annular shape, and the rotating surfaces 151 and 171 are arranged in the circumferential direction. Irregularities that are equally divided into twelve are provided, the convex portions are directly used as the rotation surfaces 151 and 171, and the concave portions that are sandwiched between the convex portions and extend in the radial direction are the groove grooves 152 and 172. Each rotary mortar 15, 17 is bolted to the above-described spiral blade module or rotary blade module. As shown in FIG. 6, the fixed mortar 14 at the rear end of the first chamber and the fixed mortar 16 at the rear end of the second chamber are configured by assembling mirror-symmetric members that are vertically divided into two. Along the periphery, there are irregularities that equally divide the fixing surfaces 141, 161 into 12 in the circumferential direction, the convex portions are fixed surfaces 141, 161 that continue to the remaining portion, and the concave portions that are sandwiched between the convex portions and extend in the radial direction are the groove grooves 143, 163 Yes. The fixed mortars 14 and 16 of this example are provided with a seal groove along the outer periphery of the mirror-symmetric member, and the seal material is fitted into the seal groove when assembled to the cylindrical body 1.
第1室11後端の固定臼盤14は、図7に見られるように、上流側及び下流側いずれにも擂り溝143を設けており、回転臼盤15に挟まれて、上流側及び下流側の固定面141,141に各回転臼盤15の回転面151,151を近接(隙間が1mm)して回転させる(図7は固定臼盤14及び回転臼盤15の組付関係を図示しており、隙間は大きい)。これに対して、第2室12後端の固定臼盤16は、図8に見られるように、下流側にのみ擂り溝143を設けてあればよく、第1室11後端の固定臼盤14同様、上流側に擂り溝163を設けてもよいが、擂り溝163がなくても構わない(本例は、上流側にも擂り溝163を設けている)。第2室12後端の回転臼盤17は、下流側の固定面161に回転面151を近接(隙間が0.5mm)して回転させる(図8は固定臼盤14及び回転臼盤15の組付関係を図示しており、隙間は大きい)。固定臼盤14,16及び回転臼盤15,17は、植物原料を擂り潰して二段階に分けて小さくしていく。これから、固定臼盤14,16と回転臼盤15,17との隙間は、二段階の擂り潰しにより、後述する固定臼盤18と回転臼盤19との擂り潰しにより要求されるバイオマス粉砕物の粒径が得られるように決定する。   As shown in FIG. 7, the fixed mortar 14 at the rear end of the first chamber 11 is provided with a groove 143 on both the upstream side and the downstream side, and is sandwiched by the rotating mortar 15 so as to be upstream and downstream. The rotating surfaces 151, 151 of each rotating mortar 15 are rotated close to each other (the gap is 1 mm) (FIG. 7 shows the assembly relationship between the fixed mortar 14 and the rotating mortar 15). Is great). On the other hand, as shown in FIG. 8, the fixed mortar 16 at the rear end of the second chamber 12 only needs to be provided with a groove 143 only on the downstream side. As in FIG. 14, the groove groove 163 may be provided on the upstream side, but the groove groove 163 may not be provided (in this example, the groove groove 163 is also provided on the upstream side). The rotating mortar 17 at the rear end of the second chamber 12 is rotated by rotating the rotating surface 151 close to the downstream fixed surface 161 (the gap is 0.5 mm). The attachment relationship is illustrated, and the gap is large). The fixed mortars 14 and 16 and the rotary mortars 15 and 17 are crushed and reduced in two stages by crushing plant raw materials. From this, the gap between the fixed mortars 14 and 16 and the rotary mortars 15 and 17 is a two-stage pulverization, and the biomass pulverized material required by the pulverization between the fixed mortar 18 and the rotary mortar 19 described later is used. Determine to obtain particle size.
第3室後端の回転臼盤19は、図9及び図10に見られるように、回転面191が円環状で、内周の接線方向に延びる3mm幅で断面円弧状(断面形状は限定されない)の凹溝を、4本単位で周方向に45度ずつ傾けながら8組設け、前記凹溝を擂り溝192としている。左右の回転臼盤19は、それぞれ内周側より外周側が回転前方にずれた傾斜の擂り溝192が鏡面対称になっており、回転により、液状原料が擂り溝192の外周側から内周側に入り込むようにしている。回転臼盤19は、回転臼盤15,17同様、上述した螺旋羽根モジュール又は回転刃モジュールにボルト止めされる。第3室後端の固定臼盤18は、図11に見られるように、固定臼盤14,16同様、上下に半割された鏡面対称部材を組み付けて構成され、貫通孔182の周縁から半径方向に延びる3mm幅で断面円弧状(断面形状は限定されない)の凹溝を周方向等間隔で36条設け、前記凹溝を擂り溝183としている。本例の固定臼盤18は、鏡面対称部材の外周に沿ってシール溝を設け、筒体1に組み付ける際に前記シール溝にシール材を嵌合させる。   As shown in FIGS. 9 and 10, the rotating mortar 19 at the rear end of the third chamber has a circular rotating surface 191 and a circular arc section with a width of 3 mm extending in the tangential direction of the inner circumference (the sectional shape is not limited). ) Are provided in eight sets while being inclined by 45 degrees in the circumferential direction in units of four, and the groove is defined as a groove groove 192. The left and right rotating mortars 19 each have an inclined groove groove 192 whose outer circumferential side is shifted from the inner circumferential side toward the rotational front and is mirror-symmetrical, and the liquid raw material is moved from the outer circumferential side to the inner circumferential side of the rolling groove 192 by rotation. I try to get in. The rotary stool 19 is bolted to the above-described spiral blade module or rotary blade module, like the rotary stools 15 and 17. As shown in FIG. 11, the fixed mortar 18 at the rear end of the third chamber is configured by assembling mirror-symmetric members that are divided in the vertical direction, like the fixed mortars 14 and 16, and has a radius from the periphery of the through hole 182. 36 grooves with a 3 mm width extending in the direction and a circular arc cross section (the cross-sectional shape is not limited) are provided at equal intervals in the circumferential direction, and the groove is formed as a groove groove 183. The fixed mortar 18 of this example is provided with a seal groove along the outer periphery of the mirror-symmetric member, and the seal material is fitted into the seal groove when assembled to the cylindrical body 1.
第3室13後端の固定臼盤18は、図12に見られるように、上流側にのみ擂り溝183を設けており、下流側に擂り溝183がない、すなわち下流側は凹凸のない平坦な面になっている(下流側の面は図示略)。これから、第3室13後端の回転臼盤19は、下流側の固定面181に回転面191を近接(隙間が0.1mm)して回転させる(図12は固定臼盤18及び回転臼盤19の組付関係を図示しており、隙間は大きい)。固定臼盤18及び回転臼盤19による擂り潰しを終えた植物原料は、直後に排出口からバイオマス粉砕物として排出される(既述したように、バイオマス粉砕物は水に混ざった液状になっている)。これから理解されるように、固定臼盤18及び回転臼盤19による植物原料の擂り潰しが、最終的なバイオマス粉砕物の粒径を決定するので、固定面181と回転面191との隙間は、要求される前記粒径を元に決定する。   As shown in FIG. 12, the fixed mortar 18 at the rear end of the third chamber 13 is provided with a groove groove 183 only on the upstream side, and there is no groove groove 183 on the downstream side, that is, the downstream side is flat without unevenness. (The downstream surface is not shown). From this point, the rotating mortar 19 at the rear end of the third chamber 13 is rotated by bringing the rotating surface 191 close to the fixed surface 181 on the downstream side (gap is 0.1 mm) (FIG. The assembly relationship is shown in FIG. The plant raw materials that have been crushed by the fixed mortar 18 and the rotating mortar 19 are immediately discharged as biomass pulverized material from the discharge port (as described above, the biomass pulverized material becomes a liquid mixed with water. ) As will be understood from this, the crushing of the plant raw material by the fixed mortar 18 and the rotating mortar 19 determines the final particle size of the pulverized biomass, so the gap between the fixed surface 181 and the rotating surface 191 is It is determined based on the required particle size.
本例のバイオマス粉砕物製造装置は、粗粉砕された植物原料を水に混ぜた液状原料を投入口111から筒体1に投入し、送りスクリュー2の螺旋羽根221,222,223,224,225に従って前記液状原料を移送しながら、固定臼盤14,16,18及び回転臼盤15,17,19により前記液状原料中の植物原料を擂り潰し、バイオマス粉砕物を排出口131から取り出す。植物原料は、液状原料として送りスクリューにより移送する際、螺旋羽根の撹拌、混合により破砕され、更に回転臼盤の回転面と固定臼盤の固定面との間で擂り潰される。植物原料を水に混ぜる理由は、送りスクリュー2の圧縮による植物原料の目詰まりを防ぎ、植物原料を円滑に移送できるようにするためである。これから、植物原料と水とは、重量比で水が50%以上、好ましくは90%以上にすることが好ましい。   In the biomass pulverized material production apparatus of this example, a liquid raw material obtained by mixing coarsely pulverized plant raw material with water is introduced into the cylinder 1 from the inlet 111, and the liquid raw material is transferred in accordance with the spiral blades 221, 222, 223, 224, 225 of the feed screw 2. The plant raw material in the liquid raw material is crushed by the fixed mortars 14, 16, 18 and the rotating mortars 15, 17, 19, and the pulverized biomass is taken out from the discharge port 131. When the plant raw material is transferred as a liquid raw material by a feed screw, the plant raw material is crushed by stirring and mixing of the spiral blades, and further crushed between the rotating surface of the rotating mortar and the fixed surface of the fixed mortar. The reason why the plant material is mixed with water is to prevent clogging of the plant material due to compression of the feed screw 2 and to allow the plant material to be smoothly transferred. From this, it is preferable that the plant raw material and water have a water ratio of 50% or more, preferably 90% or more by weight.
上述の実施形態に例示したバイオマス粉砕物製造装置を作り、植物原料の短時間あたりの処理量及び消費電力を確認した。制作したバイオマス粉砕物製造装置は、出力22kWのモータの回転動力を、減速機を介して2軸の送りスクリューに伝達してそれぞれを135rpmで回転させる構成である。   The biomass pulverized material production apparatus exemplified in the above-mentioned embodiment was made, and the processing amount and power consumption per short time of the plant raw material were confirmed. The produced biomass pulverized product manufacturing apparatus is configured to transmit the rotational power of a motor with an output of 22 kW to a biaxial feed screw via a speed reducer and rotate each at 135 rpm.
送りスクリューは、回転軸が外径72mmで、回転軸の延在方向長さが105mmである螺旋羽根モジュールと回転羽根モジュールとを組み付けて、第1室〜第3室を構成している。第1室〜第3室それぞれにおける螺旋羽根は、外径136mm(筒体内径140mm)、140mmピッチで4巻した螺旋羽根モジュールを用いている。また、第1室及び第2室それぞれにおける回転刃は、半径方向高さ13.5mm、周方向上辺20mm、下辺25mmの台形で、回転軸延在方向幅が15mmである直方体ブロックを周方向等間隔で6個配した刃列を前記回転軸延在方向幅に等しい幅を空けて3列並べて構成された回転刃モジュールを用いている。   The feed screw constitutes a first chamber to a third chamber by assembling a spiral blade module and a rotary blade module whose rotating shaft has an outer diameter of 72 mm and whose extending direction length is 105 mm. The spiral blade in each of the first to third chambers uses a spiral blade module having an outer diameter of 136 mm (cylinder inner diameter of 140 mm) and four turns at a pitch of 140 mm. The rotary blades in each of the first chamber and the second chamber are trapezoidal with a height of 13.5 mm in the radial direction, an upper side of the circumferential direction of 20 mm, and a lower side of 25 mm, and the rotation axis extending direction width is 15 mm. A rotary blade module is used in which three blade rows are arranged in a row with a width equal to the width in the extending direction of the rotary shaft.
第1室後端の固定臼盤は図6及び図7に見られる構成で、周方向8等分された半径方向に貫通孔の周縁から15mm、深さ5mmで延びる断面長方形状の凹溝を擂り溝とし、上流側及び下流側の固定面それぞれに擂り溝を形成している。貫通孔は、内径90mmである。第1室後端の回転臼盤は図4、図5及び図7に見られる構成で、外径115mm、内径73mmであり、周方向に12等分された深さ5mmの凹部を擂り溝としている。第1室後端の固定臼盤の固定面と回転臼盤の回転面とは、隙間1mmで対向させている。   The fixed mortar at the rear end of the first chamber is configured as shown in FIGS. 6 and 7 and has a concave groove having a rectangular cross section extending 15 mm from the periphery of the through hole in the radial direction equally divided into eight circumferential directions and a depth of 5 mm. As a grooved groove, a grooved groove is formed on each of the upstream and downstream fixed surfaces. The through hole has an inner diameter of 90 mm. The rotating mortar at the rear end of the first chamber is configured as shown in FIGS. 4, 5 and 7, and has an outer diameter of 115 mm, an inner diameter of 73 mm, and a recess having a depth of 5 mm divided into 12 equal parts in the circumferential direction. Yes. The fixed surface of the fixed mortar at the rear end of the first chamber and the rotating surface of the rotating mortar face each other with a gap of 1 mm.
第2室後端の固定臼盤は第1室後端の固定臼盤と同じで、下流側の固定面にのみ擂り溝を形成し、また第2室後端の回転臼盤は第1室後端の回転臼盤と同じである。貫通孔は、第1室後端の固定臼盤と同じで、内径90mmである。第2室後端の固定臼盤の固定面と回転臼盤の回転面とは、隙間0.5mmで対向させている。   The fixed mortar at the rear end of the second chamber is the same as the fixed mortar at the rear end of the first chamber, and a groove is formed only in the fixed surface on the downstream side. It is the same as the rotary mill at the rear end. The through hole is the same as the fixed mortar at the rear end of the first chamber and has an inner diameter of 90 mm. The fixed surface of the fixed mortar at the rear end of the second chamber and the rotating surface of the rotating mortar face each other with a gap of 0.5 mm.
第3室後端の固定臼盤は図11及び図12に見られる構成で、周方向36等分された半径方向に貫通孔の周縁から17.5mm、深さ1.5mmで延びる断面円弧状の凹溝を擂り溝とし、上流側の固定面に擂り溝を形成している。貫通孔は、内径80mmである。第3室後端の回転臼盤は図9、図10及び図12に見られる構成で、外径115mm、内径73mmであり、深さ1.5mmで内周の接線方向に延びる断面円弧状の凹溝を4本単位で周方向に45度ずつ傾けながら8組設けている。第3室後端の固定臼盤の固定面と回転臼盤の回転面とは、隙間0.1mmで対向させている。   The fixed mortar at the rear end of the third chamber has the configuration shown in FIGS. 11 and 12, and is a circular arc-shaped concave section extending 17.5 mm from the periphery of the through hole in the radial direction equally divided in the circumferential direction 36 by a depth of 1.5 mm. The groove is a grooved groove, and a grooved groove is formed on the upstream fixed surface. The through hole has an inner diameter of 80 mm. The rotating mortar at the rear end of the third chamber is configured as shown in FIGS. 9, 10 and 12, and has an outer diameter of 115 mm, an inner diameter of 73 mm, a depth of 1.5 mm, and an arc-shaped recess extending in the tangential direction of the inner circumference. Eight sets of grooves are provided in units of four while being inclined by 45 degrees in the circumferential direction. The fixed surface of the fixed mortar at the rear end of the third chamber and the rotating surface of the rotating mortar face each other with a gap of 0.1 mm.
微細化処理される液状原料は、予め外径1mm、長さ15mm程度の短繊維状に粗粉砕された植物原料(製紙用檜チップ)を、重量比で95%の水に混ぜて構成した。この液状原料を50L(50kg、植物原料は2.5kg)用意し、上記バイオマス粉砕物製造装置により微細化処理したところ、全量処理するまで約1時間を要した。これから、本発明のバイオマス粉砕物製造装置による植物原料の単位時間あたりの処理量は2.5kg/時間となる。ここで、微細化処理された液状原料をレーザー回折式粒度分布測定装置により測定したところ、粒径10μm以下の植物原料を含む割合が10%であった。これから、得られる粒径10μm以下のバイオマス粉砕物は250gとなる(植物原料2.5kgの10%)。また、上記微細化処理に際してモータが消費した電力は、3740Wであったことから、植物原料を1kg処理するために必要な消費電力は1496Wとなり、粒径10μm以下のバイオマス粉砕物を1kg得るために必要な消費電力は14960Wとなる。   The liquid raw material to be refined was prepared by mixing plant raw materials (papermaking straw chips) coarsely pulverized into short fibers having an outer diameter of about 1 mm and a length of about 15 mm in advance into 95% water by weight. 50 L (50 kg, 2.5 kg of plant raw material) of this liquid raw material was prepared and refined by the biomass pulverized material manufacturing apparatus. It took about 1 hour to process the whole amount. From this, the processing amount per unit time of the plant raw material by the biomass pulverized material production apparatus of the present invention is 2.5 kg / hour. Here, when the refined liquid raw material was measured with a laser diffraction particle size distribution measuring apparatus, the ratio of the plant raw material having a particle size of 10 μm or less was 10%. From this, the obtained pulverized biomass having a particle size of 10 μm or less becomes 250 g (10% of 2.5 kg of plant raw material). In addition, since the electric power consumed by the motor during the above-mentioned miniaturization process was 3740W, the power consumption necessary for processing 1 kg of plant raw material was 1496W, and in order to obtain 1 kg of pulverized biomass having a particle size of 10 μm or less. The required power consumption is 14960W.
ここで、上記実施例に用いた植物原料を、小型連続式振動ミルにより微細化処理した場合、粒径150μm以下となるバイオマス粉砕物を1kg得るために必要な消費電力は13550Wが必要である(比較例)。前記小型連続式振動ミルにより、更に微細化して実施例同等の10μm以下のバイオマス粉砕物にすることはできないが、植物原料を1/15以下に微粉するために必要な消費電力の増加が約1.1倍に収まっていることから、本発明のバイオマス粉砕物製造装置のエネルギー効率は非常に高いことが理解される。 Here, when the plant raw material used in the above examples is refined by a small continuous vibration mill, the power consumption required to obtain 1 kg of pulverized biomass having a particle size of 150 μm or less is 13550 W ( Comparative example). By the small continuous vibration mill, can not be further miniaturization to Example equivalent 10μm following pulverized biomass, increase in power consumption required for fine grinding to 1/15 or less plant material is about It is understood that the energy efficiency of the biomass pulverized material production apparatus of the present invention is very high since it falls within 1.1 times.
1 筒体
11 第1室
12 第2室
13 第3室
131 排出口
14 固定臼盤(第1室後端)
15 回転臼盤(第1室後端)
16 固定臼盤(第2室後端)
17 回転臼盤(第2室後端)
18 固定臼盤(第3室後端)
19 回転臼盤(第3室後端)
2 送りスクリュー
21 回転軸
3 モータ
4 装置フレーム
1 cylinder
11 Room 1
12 Room 2
13 Room 3
131 outlet
14 Fixed mortar (back end of first chamber)
15 Rotating mortar (1st chamber rear end)
16 Fixed mortar (rear end of second chamber)
17 Rotating mortar (rear end of second chamber)
18 Fixed mortar (rear end of third chamber)
19 Rotating mortar (3rd chamber rear end)
2 Feed screw
21 Rotating shaft 3 Motor 4 Device frame

Claims (8)

  1. 投入口及び排出口を備えた筒体に、モータにより自転する送りスクリューを内蔵して構成され、
    筒体は、投入口に繋がる第1室と、排出口に繋がる第3室と、前記第1室及び第3室に挟まれた第2室とに分かれ、送りスクリューの回転軸に隙間を空けて倣う貫通孔を設けた固定臼盤を、第1室下流側端、第2室下流側端、そして第3室下流側端にそれぞれ設け、
    送りスクリューは、前記固定臼盤の貫通孔に隙間を残して貫通する回転軸に、螺旋羽根を第1室、第2室及び第3室毎に巻き付け、固定臼盤の固定面に近接して回転する回転面を有する回転臼盤を取り付けてなり、
    固定臼盤の固定面や回転臼盤の回転面は回転軸の延在方向に直交する平面で、固定面に近接して回転面が回転し、筒体と回転臼盤との隙間、固定面及び回転面の隙間、そして送りスクリューの回転軸と固定臼盤の貫通孔との隙間を結ぶ経路を通過する植物原料を前記固定面及び回転面の間で擂り潰すバイオマス粉砕物製造装置。
    A cylindrical body having a charging port and a discharging port is configured with a built-in feed screw that rotates by a motor,
    The cylinder is divided into a first chamber connected to the inlet, a third chamber connected to the outlet, and a second chamber sandwiched between the first chamber and the third chamber, and a gap is formed in the rotation shaft of the feed screw. A fixed mortar provided with a through hole for copying is provided at the downstream end of the first chamber, the downstream end of the second chamber, and the downstream end of the third chamber,
    The feed screw winds a spiral blade around each of the first chamber, the second chamber, and the third chamber around a rotating shaft that passes through the through-hole of the fixed mortar, leaving a gap in the fixed hole of the fixed mortar. na attach the rotary die plate having a surface of revolution rotates is,
    The fixed surface of the fixed mortar and the rotating surface of the rotating mortar are planes orthogonal to the extending direction of the rotation axis. The rotating surface rotates in the vicinity of the fixed surface, the gap between the cylinder and the rotating mortar, and the fixed surface. And the biomass ground material manufacturing apparatus which crushes the plant raw material which passes the path | route which connects the clearance gap between the rotating shaft of a feed screw, and the through-hole of a fixed mortar with the clearance gap between a rotating surface between the said fixed surface and a rotating surface .
  2. 送りスクリューは、周方向に断続して半径方向に突出する複数の突起から構成される回転刃を回転軸に設け、前記回転刃を除いた部分で螺旋羽根を回転軸に巻き付けてなる請求項1記載のバイオマス粉砕物製造装置。 The feed screw is formed by providing, on a rotary shaft, a rotary blade composed of a plurality of protrusions intermittently projecting in the circumferential direction and projecting in a radial direction, and spiral blades are wound around the rotary shaft at a portion excluding the rotary blade. The biomass pulverized material manufacturing apparatus described.
  3. 送りスクリューは、固定臼盤の貫通孔に隙間を残して貫通する回転軸に、回転面が固定臼盤の固定面に近接して回転する回転臼盤を、前記固定臼盤の上流側及び下流側に一対取り付けてなる請求項1又は2いずれか記載のバイオマス粉砕物製造装置。 The feed screw has a rotary shaft whose rotation surface rotates close to the fixed surface of the fixed mortar, on the upstream side and the downstream side of the fixed mortar. The apparatus for producing a pulverized biomass product according to any one of claims 1 and 2, wherein a pair of the pulverized biomass products are attached to the side.
  4. 回転臼盤は、固定臼盤の固定面に近接して回転する回転面が円環状で、前記回転面を周方向に4等分〜16等分する凹凸を設け、内周及び外周にわたって延びる凹部を擂り溝とした請求項1〜3いずれか記載のバイオマス粉砕物製造装置。 The rotating mortar has a circular rotating surface that rotates in the vicinity of the fixed surface of the fixed mortar, and is provided with irregularities that divide the rotating surface into 4 to 16 equal parts in the circumferential direction, and is a recess that extends over the inner periphery and the outer periphery. The biomass pulverized material manufacturing apparatus according to any one of claims 1 to 3, wherein the grooving groove is a groove.
  5. 固定臼盤は、貫通孔の周縁に沿って固定面を周方向に4等分〜16等分する凹凸を設け、内周及び外周にわたって延びる凹部を擂り溝とした請求項1〜4いずれか記載のバイオマス粉砕物製造装置。 The fixed mortar is provided with concavities and convexities that divide the fixing surface into 4 to 16 parts in the circumferential direction along the peripheral edge of the through hole, and the recessed part extending over the inner periphery and the outer periphery is a grooved groove. Equipment for pulverizing biomass.
  6. 回転臼盤は、固定臼盤の固定面に近接して回転する回転面が円環状で、内周の接線方向に延びる1mm〜5mm幅の凹溝を、複数本単位で周方向に角度を変えながら設け、内周及び外周にわたって延びる前記凹溝を擂り溝とした請求項1〜3いずれか記載のバイオマス粉砕物製造装置。 The rotating mortar has an annular rotating surface that rotates in the vicinity of the fixed surface of the fixed mortar, and changes the angle of the groove in the circumferential direction in units of multiple 1 to 5 mm wide grooves extending in the tangential direction of the inner periphery. The biomass pulverized material manufacturing apparatus according to any one of claims 1 to 3, wherein the concave groove extending over the inner periphery and the outer periphery is used as a groove.
  7. 固定臼盤は、貫通孔の周縁から半径方向に延びる1mm〜5mm幅の凹溝を周方向等間隔で設け、内周及び外周にわたって延びる前記凹溝を擂り溝とした請求項1〜3又は6いずれか記載のバイオマス粉砕物製造装置。 The fixed mortar is provided with 1 mm to 5 mm wide concave grooves extending in the radial direction from the periphery of the through hole at equal intervals in the circumferential direction, and the concave grooves extending over the inner periphery and the outer periphery are formed as grooved grooves. The biomass pulverized material manufacturing apparatus according to any one of the above.
  8. 請求項1〜7いずれか記載のバイオマス粉砕物製造装置を用い、
    粗粉砕された植物原料を水に混ぜた液状原料を投入口から筒体に投入し、送りスクリューの螺旋羽根に従って前記液状原料を移送しながら、相対的に回転する回転臼盤及び固定臼盤により前記液状原料中の植物原料を擂り潰し、水に混在するバイオマス粉砕物を排出口から取り出すバイオマス粉砕物製造方法。
    Using the biomass pulverized material production apparatus according to any one of claims 1 to 7,
    A liquid raw material obtained by mixing coarsely pulverized plant raw material with water is introduced into a cylinder from an inlet, and the liquid raw material is transferred according to a spiral blade of a feed screw, and a rotating rotator and a fixed mortar rotating relatively. A method for producing a pulverized biomass product, wherein the pulverized plant material in the liquid material is crushed and the pulverized biomass material mixed in water is taken out from an outlet.
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