JP4870405B2 - Shearing crusher - Google Patents

Shearing crusher Download PDF

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JP4870405B2
JP4870405B2 JP2005268064A JP2005268064A JP4870405B2 JP 4870405 B2 JP4870405 B2 JP 4870405B2 JP 2005268064 A JP2005268064 A JP 2005268064A JP 2005268064 A JP2005268064 A JP 2005268064A JP 4870405 B2 JP4870405 B2 JP 4870405B2
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crushed
cutting blade
rotating drum
crusher
crushing
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JP2006122894A (en
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直哉 和田
隆史 芦野
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Kinki KK
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Description

本願発明は、被破砕物を剪断破砕する剪断式破砕機に関し、詳しくは、回転ドラムの内部に設けた切断刃で被破砕物を細かく破砕する剪断式破砕機に関する。   The present invention relates to a shearing crusher that shears and crushes a material to be crushed, and more particularly to a shearing crusher that crushes the material to be crushed finely with a cutting blade provided inside a rotary drum.

従来より、廃プラスチックや廃材、シュレッダーダスト、タイヤ、マットレス等のプラスチックや木片、紙、金属、ゴム、繊維、皮革等、あらゆる被破砕物を破砕する剪断式破砕機（シュレッダー）が知られている。   Conventionally, a shearing type crusher (shredder) that crushes all objects to be crushed, such as plastics such as waste plastics, waste materials, shredder dust, tires, mattresses, wood chips, paper, metal, rubber, fibers, leather, etc., is known. .

この種の剪断式破砕機としては、例えば、本出願人が先に出願した発明中に記載した剪断式破砕機がある（特許文献１参照。）。この剪断式破砕機は、図９に示す従来の剪断式破砕機を示す平面図と、図１０に示す同剪断式破砕機の縦断面した側面図と、図１１に示す同図のXI−XI断面図のように、駆動軸１０１と従動軸１０２との軸方向に、複数の切断刃１０３がスペーサ１０４を挟んで交互に設けられている。これらの切断刃１０３は、例えば０．５ｍｍ〜１ｍｍ程度の微少隙間を設けた状態で互いの刃部１０５が重なるようにラップした状態で配設されている。この切断刃１０３の外周に設けられた刃部１０５は、被破砕物５２を引き込むとともに対向する切断刃１０３との間の剪断作用によって被破砕物５２を破砕するものである。１０８は駆動機であり、歯車機構１０９を介して両軸１０１，１０２を駆動している。   As this type of shearing crusher, for example, there is a shearing crusher described in the invention previously filed by the present applicant (see Patent Document 1). This shearing type crusher includes a plan view of the conventional shearing type crusher shown in FIG. 9, a side view of the shearing type crusher shown in FIG. 10 as a longitudinal section, and a XI-XI in FIG. As shown in the cross-sectional view, a plurality of cutting blades 103 are provided alternately with spacers 104 in the axial direction of the drive shaft 101 and the driven shaft 102. These cutting blades 103 are arranged in a state of being wrapped so that the blade portions 105 overlap each other with a minute gap of about 0.5 mm to 1 mm, for example. The blade portion 105 provided on the outer periphery of the cutting blade 103 pulls the object to be crushed 52 and crushes the object to be crushed 52 by a shearing action between the cutting blade 103 facing the blade. Reference numeral 108 denotes a drive machine that drives both shafts 101 and 102 via a gear mechanism 109.

また、この切断刃１０３の破砕機本体１０６側には、切断刃１０３に付いた被破砕物５２を掻き落とすスクレーパ１０７が設けられている。このスクレーパ１０７は切断刃１０３とスペーサ１０４との間の空間に入り込むような形状に形成されている。そして、この剪断式破砕機１００による被破砕物５２の破砕は、破砕機本体１０６の上部から被破砕物５２を投入し、切断刃１０３で破砕した被破砕物５２を下部から排出している。
特開平８−３２３２３２号公報（段落［００１４］〜［００１６］、図４，５，６） Further, a scraper 107 for scraping off the object 52 attached to the cutting blade 103 is provided on the side of the crusher main body 106 of the cutting blade 103. The scraper 107 is formed in a shape that enters the space between the cutting blade 103 and the spacer 104. In the crushing of the object to be crushed 52 by the shearing crusher 100, the object to be crushed 52 is input from the upper part of the crusher main body 106, and the object to be crushed 52 crushed by the cutting blade 103 is discharged from the lower part.
JP-A-8-323232 (paragraphs [0014] to [0016], FIGS. 4, 5 and 6)

しかしながら、前記したように破砕機本体１０６の上部から投入して破砕した被破砕物５２をそのまま下部から排出するような構成では、被破砕物５２は切断刃１０３の間を一度通過したのみで排出されるため、被破砕物１２０によっては長尺物の状態のままで排出される場合がある。   However, as described above, in the configuration in which the crushed object 52 that has been input from the upper part of the crusher main body 106 and crushed is discharged as it is from the lower part, the crushed object 52 is discharged only after passing between the cutting blades 103 once. Therefore, depending on the object to be crushed 120, it may be discharged in the state of a long object.

この排出される長尺物の被破砕物１２０を更に小さくするための方法としては、剪断式破砕機を多段に並設するか、他の細破砕機を後段に接地する方法が考えられるが、この場合には設備費用の大幅な増加や設置スペースの増大を伴うため、現実的には困難な場合が多い。その上、例えば、軟質系の長尺物被破砕物５２は破砕時に切断刃１０３への巻き付きを生じ、圧縮成形したような被破砕物５２は切断刃１０３の刃部１０５に付着してしまう場合がある。   As a method for further reducing the discharged long object to be crushed 120, a method of arranging shear type crushers in parallel in multiple stages or grounding another fine crusher in the subsequent stage can be considered. In this case, there is a large increase in equipment costs and an increase in installation space. In addition, for example, the soft long object to be crushed 52 is wound around the cutting blade 103 during crushing, and the object to be crushed 52 that is compression-molded adheres to the blade portion 105 of the cutting blade 103. There is.

そのため、設備費用の大幅な増加や設置スペースの増大を伴うことなく被破砕物を所望の大きさに細かく破砕できる剪断式破砕機が切望されている。   Therefore, a shearing type crusher that can finely crush the object to be crushed into a desired size without greatly increasing the equipment cost and the installation space is desired.

そこで、本願発明の剪断式破砕機は、被破砕物を細かく破砕するための剪断式破砕機であって、駆動機で回転させる回転ドラムを水平配置して設け、前記回転ドラムを多角形断面で形成し、該回転ドラムの内部の軸方向に切断刃を支持する２本の回転軸を平行に設け、該２本の回転軸の軸方向に、外周に複数の突出する刃部を設けた切断刃を該刃部が相互に噛合うように配設し、前記２本の回転軸を独立的に駆動する駆動機を設け、該駆動機で２本の回転軸を異なる回転数で独立的に回転させる制御装置を設けて二軸剪断式の破砕機を構成し、前記回転ドラムの軸方向の一方に該回転ドラム内に被破砕物を投入する投入口を設け、該回転ドラムの内部に、前記切断刃で被破砕物の破砕を複数回繰り返すように該回転ドラム内の下部から上部に被破砕物を掻き上げる板状の掻上げ部材を設け、該掻上げ部材を前記回転ドラムの軸方向にずれて複数枚設けるとともに、これら複数枚の掻上げ部材を周方向にずれて配置することで、それぞれの掻上げ部材で投入口から投入された被破砕物を反投入口側へと横送りしながら切断刃の上部に掻上げて複数回繰り返して破砕するように構成し、前記反投入口側に排出口を設け、該排出口を、多角形断面の各平面部に設けるように構成している。これにより、投入口から投入された被破砕物を回転ドラム内で循環させ、切断刃で複数回破砕して細かく破砕できる。しかも、切断刃に被破砕物が絡みついても、２本の回転軸の速度変化によってその絡みついた被破砕物を切断刃から取り除くことができる。 Therefore, the shearing type crusher of the present invention is a shearing type crusher for finely crushing the object to be crushed, and is provided with a rotating drum that is rotated by a driving device in a horizontal arrangement, and the rotating drum has a polygonal cross section. Forming and providing two rotary shafts that support the cutting blade in the axial direction inside the rotary drum in parallel, and providing a plurality of protruding blade portions on the outer periphery in the axial direction of the two rotary shafts A blade is disposed so that the blade portions are engaged with each other, and a driving machine that independently drives the two rotating shafts is provided, and the two rotating shafts are independently driven at different rotational speeds by the driving machine. A control device for rotating is provided to constitute a biaxial shearing type crusher, and an inlet for supplying a material to be crushed into the rotating drum is provided in one of the axial directions of the rotating drum, and inside the rotating drum, From the lower part to the upper part in the rotating drum so as to repeat the crushing of the object to be crushed several times with the cutting blade By providing a plate-shaped scraping member that scrapes up the crushed material, and disposing a plurality of the scraping members in the axial direction of the rotating drum, and disposing these plural scraping members in the circumferential direction. by raising the take the objects to be crushed inserted from inlet at each scraping member at the top of the cutting blade while feeding transverse to counter-inlet side configured to crush repeated several times, the anti inlet A discharge port is provided on the side, and the discharge port is configured to be provided in each flat portion of the polygonal cross section . As a result, the object to be crushed introduced from the inlet can be circulated in the rotating drum, and crushed with a cutting blade a plurality of times to be crushed finely. Moreover, even if the object to be crushed is entangled with the cutting blade, the object to be entangled can be removed from the cutting blade by the change in the speed of the two rotating shafts.

また、投入口から投入された被破砕物は、排出口が設けられた回転ドラムの反投入口側まで軸方向に送られながら切断刃の上部に掻上げられて複数回破砕され、投入された被破砕物は全て排出口から排出される。 In addition, the material to be crushed charged from the charging port was scraped up to the upper part of the cutting blade while being fed in the axial direction to the opposite side of the rotary drum provided with the discharge port, and was crushed several times. All objects to be crushed are discharged from the outlet.

さらに、前記剪断式破砕機において、前記回転ドラムを、周囲に所定の目開きの開口孔を設けた筒状網で構成すれば、投入された被破砕物を筒状網内で循環させ、細かく破砕した被破砕物を順次開口孔から排出しながら複数回破砕することができる。 Furthermore, prior Ki剪 sectional crusher, the rotary drum, when configured with a tubular net having a predetermined mesh opening hole around, it is circulated the inserted object to be crushed in a tubular network The object to be crushed finely can be crushed a plurality of times while being sequentially discharged from the opening hole.

また、この剪断式破砕機において、前記投入口側の切断刃の厚さを厚くするとともに、反投入口側の切断刃の厚さを該投入口側の切断刃の厚さよりも薄く構成し、前記筒状網に設ける開口孔を、少なくとも該切断刃の厚さを薄く構成した反投入口側の破砕サイズに応じた目開きとして、該反投入口側での被破砕物の破砕サイズが細かくなるようにしてもよい。この場合、被破砕物を細かく破砕する場合に投入口側で早期に細かい被破砕物を排出して、効率良く破砕することができる。   Further, in this shearing type crusher, the thickness of the cutting blade on the inlet side is increased, and the thickness of the cutting blade on the side opposite to the inlet is made thinner than the thickness of the cutting blade on the inlet side, The opening hole provided in the cylindrical mesh is an opening according to the crushing size on the side of the counter-inlet that is configured to reduce the thickness of the cutting blade, and the crushing size of the object to be crushed on the side of the counter-inlet is fine It may be made to become. In this case, when the material to be crushed is finely crushed, the fine material to be crushed can be discharged early on the inlet side and efficiently crushed.

本願発明は、以上の手段により、回転ドラム内で被破砕物を循環させて切断刃で複数回剪断破砕することができるので、被破砕物を細かく破砕することが可能となる。   According to the present invention, the object to be crushed can be circulated in the rotating drum and sheared and crushed by the cutting blade a plurality of times by the above means, so that the object to be crushed can be finely crushed.

以下、本願発明の一実施形態を図面に基づいて説明する。図１は本願発明の第１参考例を示す剪断式破砕機の縦断面図であり、図２は図１に示す剪断式破砕機のII−II断面図、図３(a),(b) は、図１に示す剪断式破砕機の筒状網の形態例を示す模式図である。この参考例では、回転ドラムとして筒状網を採用している。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a shear crusher showing a first reference example of the present invention, and FIG. 2 is a II-II sectional view of the shear crusher shown in FIG. These are the schematic diagrams which show the form example of the cylindrical net | network of the shearing type crusher shown in FIG. In this reference example , a cylindrical net is adopted as the rotating drum.

図１，２に示すように、破砕機本体１には２本の回転軸２，３が平行に並設されており、これらの回転軸２，３は軸受４によって回動自在に支持されている。これらの回転軸２，３は、カップリング６を介して駆動機５と連結されており、駆動機５で両軸２，３をそれぞれ独立的に駆動することができるように構成されている。   As shown in FIGS. 1 and 2, the crusher main body 1 has two rotary shafts 2 and 3 arranged in parallel, and these rotary shafts 2 and 3 are rotatably supported by bearings 4. Yes. These rotary shafts 2 and 3 are connected to a drive machine 5 through a coupling 6, and are configured such that the drive machine 5 can drive both the shafts 2 and 3 independently.

そして、これらの回転軸２，３の軸方向には、切断刃７がスペーサ８を挟むように交互に設けられている。両回転軸２，３に設けられた切断刃７は、これら切断刃７の外周に設けられた刃部９が互いに噛合うように配設されており、両回転軸２，３の対向する位置では切断刃７とスペーサ８とが向き合っている。これによって両軸２，３に設けられた切断刃７の間は、その側面同士が、例えば、０．５ｍｍ〜１ｍｍ程度の微小隙間を有する状態でラップするようにしている。これら回転軸２，３に設けられた切断刃７が内向きに回転することにより、中央部で被破砕物５２を破砕するように構成されている。この参考例では、同一幅の切断刃７が軸方向に複数枚設けられている。 In the axial direction of the rotary shafts 2 and 3, the cutting blades 7 are alternately provided so as to sandwich the spacers 8. The cutting blades 7 provided on the two rotary shafts 2 and 3 are disposed so that the blade portions 9 provided on the outer periphery of the cutting blades 7 are engaged with each other, and the rotary shafts 2 and 3 face each other. Then, the cutting blade 7 and the spacer 8 face each other. As a result, the side surfaces of the cutting blades 7 provided on both shafts 2 and 3 are wrapped with a minute gap of about 0.5 mm to 1 mm, for example. When the cutting blades 7 provided on the rotary shafts 2 and 3 rotate inwardly, the object 52 is crushed at the center. In this reference example , a plurality of cutting blades 7 having the same width are provided in the axial direction.

また、この参考例では、全ての切断刃７が周方向の５個所に刃部９を形成した５枚刃で形成されている。この切断刃７としては、投入口側５０の切断刃７は刃部９を少なくし、反投入口側５１の切断刃７は刃部９を多くすることにより、投入口側５０では粗く破砕し、反投入口側５１では細かく破砕するようにしてもよい。このように構成することにより、樹脂を圧縮したような硬い被破砕物５２であっても、投入口側５０では少ない刃部９で徐々に破砕し、破砕した被破砕物５２は反投入口側５１で多くの刃部９によって細かく破砕するようにできる。この刃部２０を設ける数は、被破砕物５２の性状等に応じて決定すればよい。 Moreover, in this reference example , all the cutting blades 7 are formed with five blades in which blade portions 9 are formed at five locations in the circumferential direction. As the cutting blade 7, the cutting blade 7 on the inlet side 50 reduces the number of blade parts 9, and the cutting blade 7 on the counter-input side 51 increases the number of blade parts 9, so that the cutting edge 7 is roughly crushed. The counter-inlet side 51 may be finely crushed. By configuring in this way, even the hard to-be-crushed object 52 such as a compressed resin is crushed gradually with few blade parts 9 on the inlet side 50, and the crushed object 52 is on the side opposite to the inlet. 51, it can be made to crush finely with many blade parts 9. FIG. What is necessary is just to determine the number which provides this blade part 20 according to the property of the to-be-crushed object 52, etc. FIG.

そして、この切断刃７が設けられた回転軸２，３の外周には、回転軸２，３と同軸方向に筒状網１０が設けられている。この筒状網１０は、両回転軸２，３から大きく離れるような大径で形成されており、破砕機本体１に軸受１１で回転自在に支持されている。図示するように、筒状網１０には円形の開口孔１２が多数設けられている。この筒状網１０は、いわゆるトロンメル方式の網であり、この筒状網１０の開口孔１２の径によって排出される被破砕物５２の破砕サイズを決定している。この開口孔１２は、投入口側５０から反投入口側５１に向けて径が大きくなるようにしてもよい。また、この筒状網１０は、回転軸２，３とは別の駆動機１３によって駆動されている。この駆動機１３は、電動モータ等で構成される。   And the cylindrical net | network 10 is provided in the outer periphery of the rotating shafts 2 and 3 in which this cutting blade 7 was provided in the coaxial direction with the rotating shafts 2 and 3. FIG. The cylindrical net 10 is formed with a large diameter so as to be far away from the rotary shafts 2 and 3, and is rotatably supported by the crusher body 1 by a bearing 11. As shown in the figure, the cylindrical net 10 is provided with a large number of circular opening holes 12. The cylindrical net 10 is a so-called trommel type net, and the crushing size of the material 52 to be crushed is determined by the diameter of the opening hole 12 of the cylindrical net 10. The opening hole 12 may have a diameter that increases from the inlet side 50 toward the counter-inlet side 51. The cylindrical net 10 is driven by a driving machine 13 different from the rotary shafts 2 and 3. The driving machine 13 is constituted by an electric motor or the like.

さらに、この筒状網１０の内部には、この筒状網１０の回転によって下部の被破砕物５２を切断刃７の上部まで掻き上げる板状の掻上げ部材１４が設けられている。この掻上げ部材１４は、筒状網１０の軸方向にずれて複数枚が設けられており、これら複数の掻上げ部材１４は周方向にもずれて配置されている。この参考例では、掻上げ部材１４を筒状網１０の軸方向にずらして複数枚設けることにより、被破砕物５２をそれぞれの掻上げ部材１４で切断刃７の上部に掻上げて複数回繰り返して破砕することができるようにしている。なお、掻上げ部材１４を設ける枚数を変更すれば、破砕回数を容易に変更することができる。 Further, a plate-like scraping member 14 is provided inside the cylindrical mesh 10 to scrape the lower object 52 to the upper part of the cutting blade 7 by the rotation of the cylindrical mesh 10. A plurality of the scraping members 14 are provided so as to be shifted in the axial direction of the cylindrical net 10, and the scraping members 14 are also shifted in the circumferential direction. In this reference example , by providing a plurality of scraping members 14 that are shifted in the axial direction of the cylindrical mesh 10, the object 52 is scraped up to the upper portion of the cutting blade 7 by each scraping member 14 and repeated a plurality of times. So that it can be crushed. Note that the number of crushing operations can be easily changed by changing the number of the scraping members 14 provided.

また、図１に示すように、この参考例における破砕機本体１には、図の左側上部に投入口１５が設けられている。この投入口１５から投入された被破砕物５２は、前記筒状網１０の内側に投入される。この筒状網１０内に投入されて開口孔１２から排出された被破砕物５２は、架台１６に設けられた排出路１７へと排出される。 Moreover, as shown in FIG. 1, the crusher body 1 in this reference example is provided with a loading port 15 at the upper left portion of the drawing. The object to be crushed 52 introduced from the introduction port 15 is introduced into the cylindrical net 10. The object to be crushed 52 put into the cylindrical mesh 10 and discharged from the opening hole 12 is discharged to the discharge path 17 provided in the gantry 16.

さらに、図１に示す筒状網１０は、全長にわたって同一径で形成された筒状網１０を水平配置した例を示しているが、この筒状網１０は、図３(a) に示すように、投入口側５０が上方に位置して反投入口側５１が下方に位置する傾斜配置でも、図３(b) に示すように、投入口側５０が小径で反投入口側５１が大径に形成されたテーパ状のものでもよい。図３(a) のような傾斜配置とすれば、全体の傾斜によって筒状網１０内の被破砕物５２を反投入口側５１へ横送りすることができ、図３(b) のように広がるテーパ状に形成すれば、テーパの径差による傾斜によって筒状網１０内の被破砕物５２を反投入口側５１へ横送りすることができる。この筒状網１０に、これらいずれかの形態を採用するか、図１に示すような形態を採用するかは、被破砕物５２の性状や使用条件等に応じて決定すればよい。   Further, the cylindrical net 10 shown in FIG. 1 shows an example in which the cylindrical net 10 formed with the same diameter over the entire length is horizontally arranged. As shown in FIG. In addition, even in an inclined arrangement in which the inlet side 50 is positioned upward and the counter-inlet side 51 is positioned downward, as shown in FIG. 3B, the inlet side 50 has a small diameter and the counter-inlet side 51 is large. The taper shape formed in the diameter may be sufficient. If the inclined arrangement as shown in FIG. 3 (a) is adopted, the object 52 in the cylindrical net 10 can be laterally fed to the counter-inlet side 51 by the overall inclination, as shown in FIG. 3 (b). If it forms in the taper shape which spreads, the to-be-crushed object 52 in the cylindrical net | network 10 can be laterally fed to the anti-input port side 51 by the inclination by the diameter difference of a taper. Whether one of these forms or the form as shown in FIG. 1 is adopted for the cylindrical net 10 may be determined according to the properties of the object to be crushed 52, the use conditions, or the like.

以上のように構成された第１参考例の剪断式破砕機１９によれば、投入口１５から投入された被破砕物５２は切断刃７で破砕され、破砕された被破砕物５２は掻上げ部材１４によって反投入口側５１へと送られながら切断刃７の上部へと掻上げられ、切断刃７によって複数回の破砕が繰り返し行われる。したがって、１つの装置による複数回の破砕によって、被破砕物５２を所望の大きさまで細かく破砕することができる。 According to the shear crusher 19 of the first reference example configured as described above, the object to be crushed 52 introduced from the inlet 15 is crushed by the cutting blade 7, and the crushed object 52 is scraped up. The member 14 is scraped up to the upper part of the cutting blade 7 while being sent to the counter-inlet side 51, and the cutting blade 7 repeatedly performs crushing a plurality of times. Accordingly, the object to be crushed 52 can be finely crushed to a desired size by multiple crushing by one apparatus.

しかも、投入口１５から投入された被破砕物５２中の小さな物や切断刃７で小さく破砕されたものは、投入口側５０の筒状網１０の開口孔１２から早期に排出されるので、筒状網１０の反投入口側５１に送られる被破砕物５２は開口孔１２から排出されない大きな被破砕物５２に限定される。これにより、破砕機本体１内で横送りして複数回破砕する被破砕物５２の量を減らして、効率良く破砕することができる。   In addition, small objects in the object to be crushed 52 introduced from the inlet 15 and those crushed small by the cutting blade 7 are discharged early from the opening hole 12 of the cylindrical mesh 10 on the inlet side 50, The object to be crushed 52 sent to the counter-inlet side 51 of the cylindrical net 10 is limited to a large object to be crushed 52 that is not discharged from the opening hole 12. Thereby, the quantity of the to-be-crushed object 52 laterally fed in the crusher main body 1 and crushed several times can be reduced, and it can crush efficiently.

図４は本願発明の第２参考例を示す剪断式破砕機の縦断面図である。この第２参考例でも剪断式破砕機の一例として二軸剪断式破砕機を例に説明する。また、この参考例でも、回転ドラムとして筒状網を採用している。この第２参考例の剪断式破砕機は、前記第１参考例の剪断式破砕機１９における筒状網と切断刃に関する構成が異なっている。なお、前記第１参考例の剪断式破砕機１９と同一の構成には同一符号を付し、その詳細な説明は省略する。 FIG. 4 is a longitudinal sectional view of a shear crusher showing a second reference example of the present invention. In the second reference example , a biaxial shearing crusher will be described as an example of a shearing crusher. Also in this reference example , a cylindrical net is adopted as the rotating drum. The shear type crusher of the second reference example is different in the configuration regarding the cylindrical net and the cutting blade in the shear type crusher 19 of the first reference example . In addition, the same code | symbol is attached | subjected to the structure same as the shearing crusher 19 of the said 1st reference example , and the detailed description is abbreviate | omitted.

図示するように、前述した第１参考例と同様に、破砕機本体１には２本の回転軸２，３が回動自在な状態で平行に並設されている。そして、この第２参考例では、これら回転軸２，３の軸方向に、投入口側５０には、前述した第１参考例と同じ厚みの切断刃７がスペーサ８を挟むように交互に設けられ、反投入口側５１には、投入口側５０の切断刃７よりも厚みの薄い切断刃２１がスペーサ２２を挟むように交互に設けられている。この参考例では、反投入口側５１の切断刃２１とスペーサ２２とを、投入口側５０の切断刃７とスペーサ８との約半分の厚みとしている。 As shown in the figure, as in the first reference example described above, the crusher main body 1 has two rotary shafts 2 and 3 arranged in parallel in a rotatable state. And in this 2nd reference example , the cutting blade 7 of the same thickness as the 1st reference example mentioned above is alternately provided in the insertion port side 50 in the axial direction of these rotating shafts 2 and 3 so that the spacer 8 may be pinched | interposed. The cutting blades 21 having a thickness smaller than that of the cutting blade 7 on the inlet port side 50 are alternately provided on the opposite inlet side 51 so as to sandwich the spacers 22. In this reference example , the cutting blade 21 and the spacer 22 on the counter-inlet side 51 are approximately half the thickness of the cutting blade 7 and the spacer 8 on the inlet side 50.

このように投入口側５０の切断刃７の厚みを厚く形成し、反投入口側５１の切断刃２１の厚みを薄く構成することにより、投入口側５０では厚みの厚い切断刃７で被破砕物５２を長く剪断し、反投入口側５１ではその被破砕物５２を厚みの薄い切断刃２１で短く剪断して、投入された被破砕物５２を反投入口側５１へ横送りしながら細かく破砕するようにしている。この参考例における投入口側５０と反投入口側５１との切断刃厚みの差は一例であり、この参考例に限定されるものではない。 In this way, the cutting blade 7 on the inlet side 50 is formed thicker and the cutting blade 21 on the counter-inlet side 51 is made thinner. The object 52 is sheared long, and the object to be crushed 52 is sheared shortly by the thin cutting blade 21 on the counter-inlet side 51, and the input object to be crushed 52 is finely fed laterally to the counter-inlet side 51. It tries to crush. This difference in the cutting edge thickness of the inlet side 50 and the anti-inlet side 51 of the reference example is one example, but is not limited to this embodiment.

また、この参考例でも、投入口側５０の切断刃７は刃部９を少なくし、反投入口側５１の切断刃２１は刃部９を多くすることにより、投入口側５０では粗く破砕し、反投入口側５１では細かく破砕するようにしてもよい。しかも、このように投入口側５１の切断刃７の厚さを厚くして、破砕不適物などの混入時における過大な負荷による切断刃７の破損を防止できるようにしてもよい。 Also in this reference example , the cutting blade 7 on the inlet side 50 reduces the number of blade portions 9 and the cutting blade 21 on the counter-inlet side 51 increases the number of blade portions 9 so that the inlet side 50 is roughly crushed. The counter-inlet side 51 may be finely crushed. Moreover, the thickness of the cutting blade 7 on the inlet side 51 may be increased in this way, so that the cutting blade 7 can be prevented from being damaged due to an excessive load when a crushing inappropriate material or the like is mixed.

さらに、この第２参考例に係る剪断式破砕機２５の筒状網２３に設ける開口孔２４は、前記厚い切断刃７を設けた投入口側５０から薄い切断刃２１を設けた反投入口側５１まで、全て切断刃２１による破砕サイズに応じた目開きとした小径の開口孔２４を設けている。投入口側５０の切断刃７を設けた位置における開口孔２４は、更に小径であってもよい。このような構成によれば、被破砕物５２を細かく破砕する場合に、投入口側５０の切断刃７で破砕された細かい被破砕物５２を投入口側５０の開口孔２４から早期に排出し、大きな被破砕物５２のみを繰り返して破砕するようにできるので、反投入口側５１での処理効率向上を図ることができる。この構成によれば、被破砕物５２は、開口孔２４から排出される大きさになるまで筒状網２３の中で繰り返し破砕される。この筒状網２３も、前述した図３(a),(b) に示すように、傾斜させてもよい。 Furthermore, the opening hole 24 provided in the cylindrical net 23 of the shearing crusher 25 according to the second reference example is from the inlet side 50 provided with the thick cutting blade 7 to the counter inlet side provided with the thin cutting blade 21. A small-diameter opening hole 24 having openings corresponding to the crushing size by the cutting blade 21 is provided up to 51. The opening hole 24 at the position where the cutting blade 7 on the inlet side 50 is provided may have a smaller diameter. According to such a configuration, when the object to be crushed 52 is finely crushed, the fine object to be crushed 52 crushed by the cutting blade 7 on the inlet side 50 is quickly discharged from the opening hole 24 on the inlet side 50. Since only the large object to be crushed 52 can be crushed repeatedly, it is possible to improve the processing efficiency on the counter-inlet side 51. According to this configuration, the object to be crushed 52 is repeatedly crushed in the cylindrical net 23 until it reaches a size to be discharged from the opening hole 24. The cylindrical net 23 may also be inclined as shown in FIGS. 3 (a) and 3 (b).

以上のように構成された第２参考例の剪断式破砕機２５によれば、投入口側５０では厚みの厚い切断刃７で被破砕物５２を大きく破砕し、破砕された被破砕物５２は筒状網２３内で反投入口側５１へ送られながら掻上げ部材１４で切断刃７，２１の上部へと掻上げられ、反投入口側５１では厚みの薄い切断刃２１で細かく破砕することができる。 According to the shearing crusher 25 of the second reference example configured as described above, the material to be crushed 52 is largely crushed by the thick cutting blade 7 on the inlet side 50, and the material to be crushed 52 is While being sent to the counter-inlet side 51 in the cylindrical net 23, it is scraped up to the upper part of the cutting blades 7, 21 by the scraping member 14, and finely crushed by the thin cutting blade 21 at the counter-inlet side 51. Can do.

しかも、この参考例でも、投入口１５から投入された被破砕物５２中の小さな物や切断刃７で小さく破砕されたものは、投入口側５０の筒状網２３の開口孔２４から早期に排出されるので、筒状網２３の反投入口側５１に送られる被破砕物５２を開口孔２４から排出されない大きな被破砕物５２に限定し、切断刃２１で細破砕する被破砕物５２の量を減らして、効率良く破砕することができる。 Moreover, even in this reference example , small objects in the object to be crushed 52 introduced from the inlet 15 and those crushed small by the cutting blade 7 are quickly introduced from the opening hole 24 of the cylindrical mesh 23 on the inlet 50 side. Since the material to be crushed is limited to the large material to be crushed 52 that is not discharged from the opening hole 24 and is to be crushed by the cutting blade 21, It can be crushed efficiently by reducing the amount.

図５は本願発明の一実施形態を示す剪断式破砕機の縦断面図であり、図６は同剪断式破砕機のVI−VI断面図である。この実施形態では剪断式破砕機の一例として二軸剪断式破砕機を例に説明する。この実施形態の剪断式破砕機は、前記第１参考例の剪断式破砕機１９における筒状網１０に関する構成が異なっており、回転ドラムとして多角形断面のドラムを採用している。なお、前記第１参考例の剪断式破砕機１９と同一の構成には同一符号を付し、その詳細な説明は省略する。 FIG. 5 is a longitudinal sectional view of a shearing crusher showing an embodiment of the present invention, and FIG. 6 is a VI-VI sectional view of the shearing crusher. The implementation form of this will be described as an example a twin screw shearing crusher as an example of the shearing type crusher. Shearing crusher implementation form of this, the provided first different configurations for the tubular network 10 at a shear crusher 19 of the reference example, employs a drum polygonal cross as a rotating drum. In addition, the same code | symbol is attached | subjected to the structure same as the shearing crusher 19 of the said 1st reference example , and the detailed description is abbreviate | omitted.

図示するように、この実施形態に係る剪断式破砕機２８の回転ドラム２６は、多角形断面で形成されており、この例では８角形断面に形成されている。この例では回転ドラム２６に８角形断面を採用しているが、７角形断面や１０角形断面等、他の多角形断面であってもよく、この実施の形態に限定されるものではない。この回転ドラム２６には、投入口側５０に投入口１５が設けられ、反投入口側５１に排出口２７が設けられている。この排出口２７は、多角形断面の各平面部に設けられており、この例では８面に設けられている。回転ドラム２６の内部には、被破砕物５２（図２）を掻上げながら軸方向に送る掻上げ板１４が設けられている。この回転ドラム２６も、前述した図３(a),(b) に示すように、傾斜させてもよい。 As shown, the rotating drum 26 of the shearing crusher 28 according to the implementation form of this is formed by a polygonal cross-section, it is formed in the octagonal cross-section in this example. In this example, an octagonal cross section is adopted for the rotary drum 26, but other polygonal cross sections such as a heptagonal cross section and a decagonal cross section may be used, and the present invention is not limited to this embodiment. The rotary drum 26 is provided with a charging port 15 on the charging port side 50 and a discharge port 27 on the non-charging port side 51. This discharge port 27 is provided in each plane part of a polygonal cross section, and is provided in eight surfaces in this example. Inside the rotary drum 26, there is provided a scraping plate 14 that feeds the object 52 (FIG. 2) in the axial direction while scraping up. The rotating drum 26 may also be inclined as shown in FIGS. 3 (a) and 3 (b).

また、この実施形態の剪断式破砕機２８にも、前述した第１参考例と同様に、破砕機本体１には２本の回転軸２，３が回動自在な状態で平行に並設されている。この実施形態では、これらの回転軸２，３の軸方向に、前述した第１参考例と同様に、同じ厚みの切断刃７がスペーサ８を挟むように交互に設けられている。なお、この実施形態でも、投入口側５０の切断刃７は刃部９を少なくし、反投入口側５１の切断刃７は刃部９を多くすることにより、投入口側５０では粗く破砕し、反投入口側５１では細かく破砕するようにしてもよい。 Also, shearing crusher 28 of implementation form of this, the first in the same manner as in Reference Example, parallel to parallel the shredder body 1 two rotating shafts 2, 3 in a freely state rotation described above It is installed. The implementation form of this, in the axial direction of the rotary shaft 2, as in the first reference example described above, the cutting blade 7 having the same thickness are alternately provided so as to sandwich the spacer 8. Even in this embodiment, the cutting blade 7 on the inlet side 50 reduces the number of blade portions 9, and the cutting blade 7 on the counter-inlet side 51 increases the number of blade portions 9, thereby roughly crushing on the inlet side 50. The counter-inlet side 51 may be finely crushed.

以上のように構成された剪断式破砕機２８によれば、投入口１５から投入された被破砕物５２は、回転ドラム２６内で反投入口側５１へ送られながら掻上げ部材１４で切断刃７の上部へと掻上げられ、切断刃７によって複数回破砕される。 According to pruning sectional crusher 28 configured as described above, the crush material 52 inserted from the insertion slot 15 is cut in the scraping member 14 while being fed in the rotary drum 26 to the opposite inlet side 51 It is scraped up to the upper part of the blade 7 and crushed several times by the cutting blade 7.

また、この実施形態によれば、投入口１５から投入された被破砕物５２は、排出口２７が設けられた回転ドラム２６の反投入口側５１まで軸方向に送られながら切断刃７の上部に掻上げられて複数回破砕され、投入された被破砕物５２は全て排出口２７から排出される。   Further, according to this embodiment, the object 52 to be crushed introduced from the introduction port 15 is fed to the upper side of the cutting blade 7 while being fed in the axial direction to the counter-injection side 51 of the rotary drum 26 provided with the discharge port 27. The object to be crushed 52 is discharged from the discharge port 27.

さらに、これらの参考例及び実施形態の剪断式破砕機１９，２５，２８における一部又は全部の各構成を組合わせることは可能であり、被破砕物５２の性状や破砕条件等に応じて各構成を適宜組合わせてもよい。例えば、多角形断面の筒状網を採用しても、円筒状の回転ドラム２６を採用してもよく、使用条件等に最適な組合わせを適宜採用すればよい。 Furthermore, it is possible to combine some or each component of the total at a shear crusher 19,25,28 of these reference examples and embodiments, each depending on such properties and crushing conditions of the crushed 52 the configuration may be combined as appropriate. For example, a cylindrical mesh with a polygonal cross section or a cylindrical rotating drum 26 may be used, and a combination that is optimal for use conditions may be appropriately adopted.

図７は剪断式破砕機における回転軸の回転数制御例を示すタイムチャートである。ところで、前述したように投入口から投入した被破砕物５２を切断刃７で破砕して横方向に送りながら複数回破砕するように構成した場合、切断刃７（２１）に付着した被破砕物５２等は切断刃７（２１）の刃部９から落ちることなく付着した状態のままとなる場合がある。特に、ビニールロープのような軟質系の被破砕物５２は、破砕時に切断刃７（２１）に巻き付くと取れない状態のままとなる場合もあり、このような被破砕物５２が刃部９に付着すると破砕効果を激減させてしまう場合がある。その上、破砕時に切断刃７（２１）の側面との間に生じる大きな抵抗によって発熱して被破砕物５２が溶けて付着する場合もあり、この場合にも破砕効果を激減させる場合がある。   FIG. 7 is a time chart showing an example of the rotational speed control of the rotary shaft in the shearing type crusher. By the way, when it is comprised so that the to-be-crushed object 52 thrown in from the insertion port may be crushed several times, being sent to a horizontal direction as mentioned above, and to be crushed several times, it has adhered to the cutting blade 7 (21). 52 and the like may remain attached without falling from the blade portion 9 of the cutting blade 7 (21). In particular, a soft material to be crushed 52 such as a vinyl rope may remain in an unremovable state when wound around the cutting blade 7 (21) during crushing. If it adheres, the crushing effect may be drastically reduced. In addition, due to the large resistance generated between the side surfaces of the cutting blade 7 (21) during crushing, the object to be crushed 52 may melt and adhere, and in this case, the crushing effect may be drastically reduced.

そこで、前述した第１，第２参考例に示すように、両回転軸２，３をそれぞれ独立的に駆動する駆動機５を設け、図７に示すタイムチャートのように、それぞれの回転軸２，３を異なる回転数で独立的に回転させるように構成すれば、切断刃７（２１）に被破砕物５２が絡み付いたとしても、両回転軸２，３の回転数変化によってその絡みついた被破砕物５２を取り除くことができる。しかも、このタイムチャートのように、それぞれの回転軸２，３の回転数を高速と低速とに入れ替え、さらにその高速と低速との入れ替えを交互に変更するように制御すれば、絡みついた被破砕物５２をより確実に取り除くことができる。このように両回転軸２，３に回転数変化を与えたり、両回転軸２，３を所定間隔で交互に高速と低速とを入れ替えて駆動する機能は、制御装置１８に備えられている。 Therefore, as shown in the first and second reference examples described above, a drive unit 5 for independently driving both rotary shafts 2 and 3 is provided, and each rotary shaft 2 is driven as shown in the time chart of FIG. , 3 are configured to rotate independently at different rotational speeds, even if the object 52 is entangled with the cutting blade 7 (21), the entangled objects are entangled by changes in the rotational speeds of the rotary shafts 2, 3. The crushed material 52 can be removed. Moreover, as shown in this time chart, if the rotational speeds of the respective rotary shafts 2 and 3 are switched between high speed and low speed, and the switching between the high speed and low speed is alternately changed, the entangled object to be entangled The object 52 can be removed more reliably. In this way, the control device 18 is provided with a function of changing the rotational speeds of the rotary shafts 2 and 3 and driving the rotary shafts 2 and 3 alternately at high speeds and low speeds at predetermined intervals.

図８(a),(b),(c) は、本願発明の剪断式破砕機における回転軸の駆動方向と駆動速度との例を示す模式図である。図示するように、前記した剪断式破砕機における複数の回転軸２，３の駆動方向と駆動速度の関係としては、(a) に示すように同一回転数で正転駆動（両軸共中央側に回転）する方法、(b) に示すように一方（図示する右側）を低速回転数で正転駆動する方法、(c) に示すように一方を低速回転数で逆転駆動（図示する時計回り）する方法、から選択的に行うようにすればよい。   FIGS. 8A, 8B, and 8C are schematic views showing examples of the driving direction and driving speed of the rotating shaft in the shear crusher of the present invention. As shown in the figure, the relationship between the driving direction and the driving speed of the plurality of rotating shafts 2 and 3 in the above-described shearing crusher is as follows. ), One side (right side shown in the figure) is normally driven at low speed as shown in (b), and one side is driven in reverse at low speed (as shown in (c)) ) To perform selectively.

(a) に示すように同一回転数で正転駆動すれば、両軸で一気に被破砕物を噛み込むことができる。(b) に示すように一方（図示する右側）を低速回転数で正転駆動すれば、被破砕物の過噛み込みを抑制することができる。この場合の回転数制御の回転数差としては、例えば、高速回転数と低速回転数との比で２対１程度を採用すればよいが、他の組合わせでもよい。(c) に示すように一方（図示する右側）を低速回転数で逆転駆動しても、被破砕物の過噛み込みを抑制することができる。この場合の回転数制御の回転数差としては、例えば、高速回転数と低速回転数との比で１０対１程度を採用して回転数差（速度差）を大きくして、剪断効果を保ちつつ噛み込みを防止するのが好ましいが、他の組合わせでもよい。この制御モードの場合、絡みつきやすい被破砕物の破砕にも適している。これらの制御モードの選択は、被破砕物Ｔの噛み込み易さ等の破砕条件に応じて好ましい回転方向に自動又は手動で選択できるようにすればよい。このように、回転軸を回転制御すれば、切断刃７に噛み込み易い被破砕物Ｔの噛み込み制御を行って過負荷の発生を抑制することができ、破砕処理能力を向上させることができる。   As shown in (a), if the forward rotation drive is performed at the same rotational speed, the object to be crushed can be bitten by both shafts at once. As shown in (b), if one side (the right side in the figure) is driven to rotate forward at a low speed, overclogging of the object to be crushed can be suppressed. In this case, as the rotational speed difference of the rotational speed control, for example, a ratio of about 2 to 1 may be adopted in the ratio of the high speed rotational speed to the low speed rotational speed, but other combinations may be used. As shown in (c), even if one side (the right side in the figure) is reversely driven at a low speed, the excessive biting of the object to be crushed can be suppressed. In this case, as the rotational speed difference of the rotational speed control, for example, the ratio of the high speed rotational speed to the low speed rotational speed is about 10 to 1 to increase the rotational speed difference (speed difference) and maintain the shear effect. It is preferable to prevent biting while other combinations are possible. In the case of this control mode, it is also suitable for crushing to-be-crushed objects. These control modes may be selected automatically or manually in the preferred rotation direction according to the crushing conditions such as the ease of biting the object T to be crushed. In this way, if the rotation shaft is rotationally controlled, it is possible to control the biting of the object to be crushed T that is easy to bite into the cutting blade 7, thereby suppressing the occurrence of overload and improving the crushing processing capability. .

なお、前述した実施形態は一例を示しており、本願発明の要旨を損なわない範囲での種々の変更は可能であり、本願発明は前述した実施形態に限定されるものではない。   The above-described embodiment shows an example, and various modifications can be made without departing from the gist of the present invention, and the present invention is not limited to the above-described embodiment.

本願発明に係る剪断式破砕機は、設置スペースの増大を招くことなく被破砕物を細かく破砕したい場合の剪断式破砕として有用である。   The shearing type crusher according to the present invention is useful as a shearing type crushing when it is desired to finely crush the object to be crushed without increasing the installation space.

本願発明の第１参考例を示す剪断式破砕機の縦断面図である。It is a longitudinal cross-sectional view of the shearing type crusher which shows the 1st reference example of this invention. 図１に示す剪断式破砕機のII−II断面図である。It is II-II sectional drawing of the shearing type crusher shown in FIG. (a),(b) は、図１に示す剪断式破砕機の筒状網の形態例を示す模式図である。(a), (b) is a schematic diagram which shows the form example of the cylindrical net | network of the shearing type crusher shown in FIG. 本願発明の第２参考例を示す剪断式破砕機の縦断面図である。It is a longitudinal cross-sectional view of the shearing type crusher which shows the 2nd reference example of this invention. 本願発明の一実施形態を示す剪断式破砕機の縦断面図である。It is a longitudinal cross-sectional view of the shearing type crusher which shows one Embodiment of this invention. 図５に示す剪断式破砕機のVI−VI断面図である。It is VI-VI sectional drawing of the shearing type crusher shown in FIG. (a),(b) は、本願発明の剪断式破砕機における回転軸に回転数制御例を示すタイムチャートである。(a), (b) is a time chart which shows the example of rotation speed control on the rotating shaft in the shearing type crusher of this invention. (a),(b),(c) は、本願発明の剪断式破砕機における回転軸の駆動方向と駆動速度との例を示す模式図である。(a), (b), (c) is a schematic diagram which shows the example of the drive direction and drive speed of a rotating shaft in the shearing crusher of this invention. 従来の剪断式破砕機を示す平面図である。It is a top view which shows the conventional shearing type crusher. 図９に示す剪断式破砕機の縦断面した側面図である。It is the side view which carried out the longitudinal cross-section of the shearing type crusher shown in FIG. 図１０に示すXI−XI断面図である。It is XI-XI sectional drawing shown in FIG.

１…破砕機本体
２，３…回転軸
４…軸受
５…駆動機
６…カップリング
７…切断刃
８…スペーサ
９…刃部
１０…筒状網（回転ドラム）
１１…軸受
１２…開口孔
１５…投入口
１６…架台
１７…排出路
１８…制御装置
１９…剪断式破砕機
２１…切断刃
２２…スペーサ
２３…筒状網
２４…開口孔
２５…剪断式破砕機
２６…回転ドラム
２７…排出口
２８…剪断式破砕機
５０…投入口側
５１…反投入口側
５２…被破砕物 DESCRIPTION OF SYMBOLS 1 ... Crusher main body 2,3 ... Rotary shaft 4 ... Bearing 5 ... Drive machine 6 ... Coupling 7 ... Cutting blade 8 ... Spacer 9 ... Blade part 10 ... Cylindrical net (rotary drum)
DESCRIPTION OF SYMBOLS 11 ... Bearing 12 ... Opening hole 15 ... Input port 16 ... Mounting stand 17 ... Discharge path 18 ... Control device 19 ... Shear type crusher 21 ... Cutting blade 22 ... Spacer 23 ... Cylindrical net 24 ... Opening hole 25 ... Shear type crusher DESCRIPTION OF SYMBOLS 26 ... Rotating drum 27 ... Discharge port 28 ... Shear type crusher 50 ... Input port side 51 ... Anti-input port side 52 ... Object to be crushed

Claims (3)

被破砕物を細かく破砕するための剪断式破砕機であって、
駆動機で回転させる回転ドラムを水平配置して設け、
前記回転ドラムを多角形断面で形成し、
該回転ドラムの内部の軸方向に切断刃を支持する２本の回転軸を平行に設け、該２本の回転軸の軸方向に、外周に複数の突出する刃部を設けた切断刃を該刃部が相互に噛合うように配設し、前記２本の回転軸を独立的に駆動する駆動機を設け、該駆動機で２本の回転軸を異なる回転数で独立的に回転させる制御装置を設けて二軸剪断式の破砕機を構成し、
前記回転ドラムの軸方向の一方に該回転ドラム内に被破砕物を投入する投入口を設け、該回転ドラムの内部に、前記切断刃で被破砕物の破砕を複数回繰り返すように該回転ドラム内の下部から上部に被破砕物を掻き上げる板状の掻上げ部材を設け、該掻上げ部材を前記回転ドラムの軸方向にずれて複数枚設けるとともに、これら複数枚の掻上げ部材を周方向にずれて配置することで、それぞれの掻上げ部材で投入口から投入された被破砕物を反投入口側へと横送りしながら切断刃の上部に掻上げて複数回繰り返して破砕するように構成し、
前記反投入口側に排出口を設け、該排出口を、多角形断面の各平面部に設けるように構成した剪断式破砕機。 A shear type crusher for crushing the material to be crushed finely,
A rotating drum that is rotated by a drive machine is provided horizontally.
Forming the rotating drum with a polygonal cross section;
Two rotating shafts supporting the cutting blade in the axial direction inside the rotary drum are provided in parallel, and a cutting blade having a plurality of protruding blade portions on the outer periphery in the axial direction of the two rotating shafts is provided. Provided with a driving device that is arranged so that the blade portions mesh with each other, and that independently drives the two rotating shafts, and the two rotating shafts are independently rotated at different rotational speeds by the driving device. A device is provided to configure a biaxial shearing type crusher,
An inlet for feeding the object to be crushed into the rotating drum is provided in one of the axial directions of the rotating drum, and the rotating drum is configured to repeat crushing of the object to be crushed by the cutting blade a plurality of times inside the rotating drum. A plate-like scraping member that scrapes up the object to be crushed from the lower part to the upper part is provided, and a plurality of the scraping members are provided shifted in the axial direction of the rotating drum. By disposing them to each other, the crushing material thrown in from the inlet by each scraping member is scraped up to the upper part of the cutting blade while being laterally fed to the anti-feeder side and repeatedly crushed several times. Configure
A shearing type crusher configured to provide a discharge port on the side opposite to the input port, and to provide the discharge port on each flat portion of a polygonal cross section . 前記回転ドラムを、周囲に所定の目開きの開口孔を設けた筒状網で構成した請求項１に記載の剪断式破砕機。   The shearing type crusher according to claim 1, wherein the rotating drum is constituted by a cylindrical net provided with an opening having a predetermined opening around the rotating drum. 前記投入口側の切断刃の厚さを厚くするとともに、反投入口側の切断刃の厚さを該投入口側の切断刃の厚さよりも薄く構成し、前記筒状網に設ける開口孔を、少なくとも該切断刃の厚さを薄く構成した反投入口側の破砕サイズに応じた目開きとして、該反投入口側での被破砕物の破砕サイズが細かくなるようにした請求項２に記載の剪断式破砕機。   The thickness of the cutting blade on the inlet side is increased, and the thickness of the cutting blade on the anti-input port side is made thinner than the thickness of the cutting blade on the inlet side, and an opening hole provided in the cylindrical net is provided. The crushing size of the object to be crushed on the side of the anti-feed port is made finer as an opening corresponding to the crushing size on the side of the anti-feed port in which at least the thickness of the cutting blade is thin. Shearing crusher.
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