JPH06142534A - High-speed rotary impact-type grinder - Google Patents
High-speed rotary impact-type grinderInfo
- Publication number
- JPH06142534A JPH06142534A JP29448892A JP29448892A JPH06142534A JP H06142534 A JPH06142534 A JP H06142534A JP 29448892 A JP29448892 A JP 29448892A JP 29448892 A JP29448892 A JP 29448892A JP H06142534 A JPH06142534 A JP H06142534A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- rotor
- conical
- raw material
- cylindrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、弱熱性物質、繊維質
物質、金属、食品、合成樹脂、一般有機・無機物質等の
原料を数μｍから数１０μｍ程度の大きさに微粉砕する
高速回転衝撃式粉砕機に関するものである。BACKGROUND OF THE INVENTION This invention relates to a high-speed rotation for finely pulverizing raw materials such as weakly heat-resistant substances, fibrous substances, metals, foods, synthetic resins, and general organic / inorganic substances to a size of several μm to several tens of μm. The present invention relates to an impact type crusher.
【０００２】[0002]
【従来の技術】高速回転衝撃式粉砕機として、図８に示
したものが従来から知られている。2. Description of the Related Art As a high-speed rotary impact type crusher, the one shown in FIG. 8 has been conventionally known.
【０００３】上記粉砕機は、ケーシング３０の内部に円
筒形のステータ３１を設け、そのステータ３１の内側に
ロータ３２を組込んでステータ３１の内部に粉砕室３３
と分級室３４とを形成し、ロータ３２の粉砕室３３と対
向する一側面の外周部に攪拌羽根３５を設け、かつ他側
面の外周部に分級羽根３６を設け、原料供給路３７から
粉砕室３３に供給される原料を高速回転するロータ３２
の攪拌羽根３５とステータ３１とで衝撃粉砕している。In the above crusher, a cylindrical stator 31 is provided inside a casing 30, a rotor 32 is incorporated inside the stator 31, and a crushing chamber 33 is provided inside the stator 31.
And a classification chamber 34 are formed, a stirring blade 35 is provided on the outer peripheral portion of one side facing the crushing chamber 33 of the rotor 32, and a classification blade 36 is provided on the outer peripheral portion of the other side surface. Rotor 32 that rotates the raw material supplied to 33 at high speed
The stirring blades 35 and the stator 31 of FIG.
【０００４】また、粉砕物を分級室３４内に流入させ、
分級羽根３６の回転により旋回させて微粉と粗粉とに遠
心分離し、微粉を分級室３４の中心部に連通させた粉砕
物排出口３８から取り出し、粗粉を粗粒循環通路３９か
ら原料供給路３７にリターンさせて再度粉砕している。Further, the pulverized material is allowed to flow into the classification chamber 34,
The classification blade 36 is rotated to centrifuge into fine powder and coarse powder, the fine powder is taken out from a pulverized material discharge port 38 communicating with the center of the classification chamber 34, and the coarse powder is supplied from a coarse particle circulation passage 39 as a raw material. It is returned to the path 37 and crushed again.
【０００５】[0005]
【発明が解決しようとする課題】ところで、上記粉砕機
においては、攪拌羽根３５および分級羽根３６との衝突
によって原料を粉砕する構成であるため、粉砕効率が低
いという問題がある。By the way, in the above crusher, since the raw material is crushed by the collision with the stirring blade 35 and the classification blade 36, there is a problem that the crushing efficiency is low.
【０００６】この発明は上記従来の問題点を解決し、粉
砕効率の向上を図り、粒度分布の均一なシャープな微粉
砕品が得られるようにすることを技術的課題としてい
る。SUMMARY OF THE INVENTION The present invention has a technical problem to solve the above-mentioned conventional problems, improve the pulverization efficiency, and obtain a fine pulverized product having a uniform particle size distribution.
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明においては、円形の粉砕室を有し、その
粉砕室の中心部に連通して原料供給路を形成したケーシ
ングと、上記粉砕室内の外周部に組込まれたステータ
と、そのステータの内側に組込まれ、一方向に高速回転
されるロータとから成り、前記ステータには粉砕室内へ
の原料入口側に円筒形内面と、その内面に連続して円錐
形内面とを設け、この両内面に軸方向に延びる溝を円周
方向に所要の間隔をおいて設け、前記ロータには上記円
筒形内面との間に円筒形の一次粉砕ゾーンを形成する円
筒形外面と、円錐形内面との間で円錐形の二次粉砕ゾー
ンを形成する円錐形外面とを設け、上記両外面に軸方向
に延びる凹凸条を円周方向に形成し、前記二次粉砕ゾー
ンに連通して粉砕物の回収室を設けた構成を採用したの
である。In order to solve the above problems, according to the present invention, there is provided a casing having a circular grinding chamber and having a raw material supply passage communicating with the center of the grinding chamber, A stator incorporated in the outer peripheral portion of the crushing chamber, and a rotor incorporated inside the stator and rotated at a high speed in one direction, the stator having a cylindrical inner surface on the raw material inlet side into the crushing chamber, A conical inner surface is continuously provided on the inner surface, and grooves extending in the axial direction are provided on both inner surfaces at a required interval in the circumferential direction, and the rotor has a cylindrical shape between the inner surface and the cylindrical inner surface. A cylindrical outer surface forming a primary crushing zone and a conical outer surface forming a conical secondary crushing zone between the conical inner surface and a conical outer surface are provided, and an axially extending ridge and groove is circumferentially formed on both outer surfaces. Formed and communicated with the secondary crushing zone It had adopted a configuration in which the collection chamber.
【０００８】ここで、原料の流れをスムーズにするた
め、ロータの原料入口側の端面外周部に環状膨出部を形
成し、その環状膨出部に複数の案内溝を放射状に設けて
おくのがよい。Here, in order to smooth the flow of the raw material, an annular bulging portion is formed on the outer peripheral portion of the end surface of the rotor on the raw material inlet side, and a plurality of guide grooves are radially provided in the annular bulging portion. Is good.
【０００９】また、ステータの円錐形内面とロータの円
錐形外面は、テーパ角度が異なる複数の円錐面で形成し
てもよく、その円錐形内面と円錐形外面間に形成された
円錐形の二次粉砕ゾーンの大きさをステータの軸方向の
移動によって調整できるようにしてもよい。The inner conical surface of the stator and the outer conical surface of the rotor may be formed by a plurality of conical surfaces having different taper angles, and a conical inner surface formed between the inner conical surface and the outer conical surface. The size of the next crushing zone may be adjusted by moving the stator in the axial direction.
【００１０】[0010]
【作用】上記の構成から成る粉砕機は、原料供給路から
粉砕室に吸引される原料をロータの高速回転により起こ
る遠心力と気流の流れとにより粉砕室内の外径方向に移
動させ、ステータの円筒形内面に形成した溝との衝突に
よって粗砕する。この粉砕物を一次粉砕ゾーンおよび二
次粉砕ゾーンに導き、各粉砕ゾーンにおいてステータの
溝とロータの凹凸条とで剪断し、かつ摩砕し、二次粉砕
ゾーンにおいて粉砕物に作用する遠心力により一次粉砕
ゾーンと二次粉砕ゾーンの連通部に粉砕物を滞留させて
粉砕を促進し、所定の粒度まで粉砕された粉砕物を回収
室に流入させる。In the crusher having the above structure, the raw material sucked from the raw material supply passage into the pulverizing chamber is moved in the outer diameter direction inside the pulverizing chamber by the centrifugal force and the flow of the air flow caused by the high-speed rotation of the rotor, and It is crushed by collision with the groove formed on the inner surface of the cylinder. This pulverized product is guided to the primary pulverization zone and the secondary pulverization zone, sheared and ground by the grooves of the stator and the uneven lines of the rotor in each pulverization zone, and the centrifugal force acting on the pulverized product in the secondary pulverization zone The pulverized material is retained in the communicating portion between the primary pulverization zone and the secondary pulverization zone to promote pulverization, and the pulverized material pulverized to a predetermined particle size is allowed to flow into the recovery chamber.
【００１１】[0011]
【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】図１乃至図４に示すように、ケーシング１
には円形の粉砕室２と、その粉砕室２の中心部に連通す
る原料供給路３とが設けられている。As shown in FIGS. 1 to 4, the casing 1
A circular crushing chamber 2 and a raw material supply path 3 communicating with the center of the crushing chamber 2 are provided in the.
【００１３】粉砕室２内の外周部にはステータ４が組込
まれて回り止めされ、かつ軸方向に移動するのが防止さ
れている。A stator 4 is incorporated in the outer peripheral portion of the crushing chamber 2 to prevent the stator 4 from rotating and to prevent the stator 4 from moving in the axial direction.
【００１４】ステータ４は円筒形リング４ａとテーパリ
ング４ｂとから成り、円筒形リング４ａが粉砕室２の原
料入口側に配置されている。円筒形リング４ａの円筒形
内面５とテーパリング４ｂの円錐形内面６のそれぞれに
は、軸方向に延びる溝７が円周方向に等間隔に設けられ
ている。The stator 4 comprises a cylindrical ring 4a and a taper ring 4b, and the cylindrical ring 4a is arranged on the raw material inlet side of the crushing chamber 2. The cylindrical inner surface 5 of the cylindrical ring 4a and the conical inner surface 6 of the tapered ring 4b are provided with grooves 7 extending in the axial direction at equal intervals in the circumferential direction.
【００１５】図３では、溝７として半円状のものを示し
たが、形状はこれに限定されない。Although the groove 7 has a semicircular shape in FIG. 3, the shape is not limited to this.
【００１６】ステータ４の内側に組込まれたロータ８は
図示省略したモータによって一方向に高速回転される。
ロータ８には、ステータ４の円筒形内面５との間に円筒
形の一次粉砕ゾーン２ａを形成する円筒形外面９と、円
錐形内面６との間に円錐形の二次粉砕ゾーン２ｂを形成
する円錐形外面１０とが設けられている。The rotor 8 assembled inside the stator 4 is rotated in one direction at a high speed by a motor (not shown).
The rotor 8 has a cylindrical outer surface 9 forming a cylindrical primary grinding zone 2a with the cylindrical inner surface 5 of the stator 4 and a conical secondary grinding zone 2b formed with a conical inner surface 6. A conical outer surface 10 is provided.
【００１７】円筒形外面９と円錐形外面１０のそれぞれ
には、軸方向に延びる凹凸条１１が円周方向に等間隔に
設けられている。The cylindrical outer surface 9 and the conical outer surface 10 are each provided with ridges 11 extending in the axial direction at equal intervals in the circumferential direction.
【００１８】また、ロータ８には、粉砕室２の原料入口
側の端面外周部に環状突出部１２が設けられ、その環状
突出部１２に複数の案内溝１３が等間隔に形成されてい
る。Further, the rotor 8 is provided with an annular projecting portion 12 on the outer peripheral portion of the end surface of the crushing chamber 2 on the raw material inlet side, and a plurality of guide grooves 13 are formed in the annular projecting portion 12 at equal intervals.
【００１９】前記二次粉砕ゾーン２ｂは、円形の回収室
１４に連通し、その回収室１４の端面中心部に粉砕物排
出口１５が設けられている。また、回収室１４の周壁に
は、その回収室１４内において旋回する粉砕物の旋回方
向に二次エアを流入させる複数の吸引口１６が等間隔に
設けられている。ここで、吸引口１６は図では省略した
が、二次エアの流入量を調整できるように、開度調整自
在とされている。The secondary crushing zone 2b communicates with a circular recovery chamber 14, and a crushed material discharge port 15 is provided at the center of the end face of the recovery chamber 14. Further, on the peripheral wall of the recovery chamber 14, a plurality of suction ports 16 through which secondary air is introduced in the swirling direction of the pulverized product swirling in the recovery chamber 14 are provided at equal intervals. Here, although not shown in the drawing, the suction port 16 is adjustable in opening degree so that the inflow amount of the secondary air can be adjusted.
【００２０】上記回収室１４の外周部と前記原料供給路
３とはリターン通路１７で連通されている。リターン通
路１７にはエジェクタ１８が設けられている。エジェク
タ１８は絞り部１９を有し、その絞り部１９の入口側に
エア噴射ノズル２０を接続し、そのノズル２０から絞り
部１９にエアを噴射してリターン通路１７に吸引力を付
与している。A return passage 17 connects the outer peripheral portion of the recovery chamber 14 and the raw material supply passage 3 with each other. An ejector 18 is provided in the return passage 17. The ejector 18 has a throttle portion 19, an air injection nozzle 20 is connected to the inlet side of the throttle portion 19, and air is jetted from the nozzle 20 to the throttle portion 19 to apply suction force to the return passage 17. .
【００２１】実施例で示す粉砕機は上記の構造から成
り、図７は上記粉砕機Ａを用いた粉砕プラントを示す。
定量供給機２１から排出される原料は、原料供給管２２
から粉砕機Ａの原料供給路３に供給される。The crusher shown in the embodiment has the above structure, and FIG. 7 shows a crushing plant using the above crusher A.
The raw material discharged from the constant quantity feeder 21 is a raw material supply pipe 22.
Is supplied to the raw material supply path 3 of the crusher A.
【００２２】粉砕機Ａの排出口１５に接続された粉砕物
回収管２６はブロワー２３の吸引口に接続され、その粉
砕物回収管２６の途中にサイクロン捕集機２４とバッグ
フィルタ２５とが接続されている。The crushed material recovery pipe 26 connected to the discharge port 15 of the crusher A is connected to the suction port of the blower 23, and the cyclone collector 24 and the bag filter 25 are connected in the middle of the crushed material recovery pipe 26. Has been done.
【００２３】原料の粉砕に際しては、ブロワー２３を駆
動し、粉砕機Ａの排出口１５に吸引力を付与する状態に
おいて、定量供給機２１から原料供給路３に粉砕原料を
供給する。When the raw material is pulverized, the blower 23 is driven to supply the pulverized raw material from the constant amount feeder 21 to the raw material supply path 3 in a state where the suction force is applied to the discharge port 15 of the pulverizer A.
【００２４】いま、ロータ８を一方向に高速度で回転さ
せた状態において原料供給路３に原料を供給すると、こ
の原料は、粉砕室２内に流入し、ロータ８の回転によっ
て回転力が付与され、遠心力と気流の流れとにより粉砕
室２の外径方向に移動する。When the raw material is supplied to the raw material supply path 3 while the rotor 8 is rotated at a high speed in one direction, the raw material flows into the crushing chamber 2 and a rotational force is applied by the rotation of the rotor 8. Then, it is moved in the outer diameter direction of the crushing chamber 2 by the centrifugal force and the flow of the air flow.
【００２５】このとき、ロータ８の端面には案内溝１３
が放射状に設けられているため、原料はその案内溝１３
に沿ってスムーズに流れ、円筒形リング４ａの円筒形内
面に設けた溝７に衝突する。At this time, the guide groove 13 is formed on the end face of the rotor 8.
The material is provided in the guide groove 13
Smoothly flow along and collide with the groove 7 provided on the inner surface of the cylindrical ring 4a.
【００２６】なお、上記案内溝１３に代えて図８に示す
ような攪拌羽根を取付け、その攪拌羽根により原料に回
転力を付与してもよい。Instead of the guide groove 13, stirring blades as shown in FIG. 8 may be attached and the stirring blades may impart a rotational force to the raw material.
【００２７】上記原料は、上記溝７に対する衝突と、溝
７と案内溝１３の外径側開口のエッジによる剪断とによ
って粗砕され、その粗砕物は、回収室１４に作用する吸
引力によって、一次粉砕ゾーン２ａから二次粉砕ゾーン
２ｂに吸引され、各粉砕ゾーン２ａ、２ｂを移動すると
き、ステータ４の溝７とロータ８の凹凸条１１による剪
断と摩砕の両作用を受けて微粉砕される。The raw material is crushed by the collision with the groove 7 and the shearing by the edge of the outer opening of the groove 7 and the guide groove 13, and the crushed material is sucked by the suction force acting on the recovery chamber 14. When the particles are sucked from the primary crushing zone 2a to the secondary crushing zone 2b and move through the crushing zones 2a, 2b, they are subjected to both shearing and grinding by the groove 7 of the stator 4 and the uneven ridges 11 of the rotor 8 and fine crushing To be done.
【００２８】ここで、二次粉砕ゾーン２ｂは回収室１４
に向けて径が次第に小さくなる円錐形であるため、一次
粉砕ゾーン２ａにおいて一次粉砕された粉砕物が二次粉
砕ゾーン２ｂに流入すると、図４に示すように、粉砕物
の粒子に遠心力Ｆ0 が作用し、ロータ８の円錐形外面１
０に直角な方向の分力Ｆ1 と円錐形外面１０に沿う方向
の分力Ｆ2 とが作用する。Here, the secondary crushing zone 2b has a recovery chamber 14
Since the diameter of the cone is gradually reduced toward the crushed particle, when the crushed material that has been primary crushed in the primary crushing zone 2a flows into the secondary crushing zone 2b, as shown in FIG. 0 acts and the conical outer surface 1 of the rotor 8
A component force F 1 in the direction perpendicular to 0 and a component force F 2 in the direction along the conical outer surface 10 act.
【００２９】分力Ｆ2 は粒子を上流側に移動させる力と
して作用するため、粒子径の大きな粉砕物は一次粉砕ゾ
ーン２ａに向け移動して一次粉砕ゾーン２ａと二次粉砕
ゾーン２ｂの交差部に滞留し、その交差部における粉砕
物の濃度が高く、粉砕が促進される。Since the component force F 2 acts as a force to move the particles to the upstream side, the pulverized material having a large particle size moves toward the primary crushing zone 2a and the intersection of the primary crushing zone 2a and the secondary crushing zone 2b. And the concentration of the ground material at the intersection is high, and the grinding is promoted.
【００３０】粒子径の小さな粉砕物は、気流の流れにの
って二次粉砕ゾーン２ｂから回収室１４内に流入し、そ
の回収室１４内において旋回する。このとき、吸引口１
６から回収室１４内に二次エアが流入し、その二次エア
によって粉砕物の旋回速度が加速され、回収室１４にお
ける粉砕物の旋回によって、粉砕物は微粉と粗粉とに遠
心分離される。The pulverized material having a small particle size flows into the recovery chamber 14 from the secondary pulverization zone 2b along with the flow of the air stream and swirls in the recovery chamber 14. At this time, suction port 1
Secondary air flows into the recovery chamber 14 from 6, and the swirling speed of the pulverized material is accelerated by the secondary air. By the swirling of the pulverized material in the collection chamber 14, the pulverized material is centrifugally separated into fine powder and coarse powder. It
【００３１】回収室１４の外周部において旋回する粗粉
はリターン通路１７に流れ、エジェクタ１８の作用によ
り速度が加速されて原料供給路３に戻り、新しい原料と
共に粉砕室２内に送り込まれて再度粉砕される。The coarse powder swirling around the outer periphery of the recovery chamber 14 flows into the return passage 17, the speed is accelerated by the action of the ejector 18 and returns to the raw material supply passage 3, and is fed into the crushing chamber 2 together with the new raw material and again. Be crushed.
【００３２】一方、回収室１４の中心部に移動する微粉
は、排出口１５から排出され、図７に示すサイクロン分
離機２４により回収される。On the other hand, the fine powder moving to the center of the recovery chamber 14 is discharged from the discharge port 15 and collected by the cyclone separator 24 shown in FIG.
【００３３】このように、粉砕室２に送り込まれた原料
は、ステータ４の円筒形内面５に設けた溝７に対する衝
突と、案内溝１３のエッジによる剪断とにより粗砕さ
れ、また、溝７と凹凸条１１との剪断と摩砕の両作用に
よって粉砕され、その粉砕時において粉砕物は一次粉砕
ゾーン２ａと二次粉砕ゾーン２ｂとの交差部に滞留して
粉砕作用を受けるため、原料をきわめて効果的に粉砕す
ると共に、比較的粒子径の揃った粉砕物を回収すること
ができる。As described above, the raw material fed into the crushing chamber 2 is roughly crushed by the collision with the groove 7 provided on the cylindrical inner surface 5 of the stator 4 and the shearing by the edge of the guide groove 13, and the groove 7 is also crushed. The crushed material is crushed by both the action of shearing and grinding of the uneven ridges 11, and during the crushing, the crushed material stays at the intersection of the primary crushing zone 2a and the secondary crushing zone 2b and is subjected to the crushing action. It is possible to pulverize extremely effectively and to collect a pulverized product having a relatively uniform particle size.
【００３４】図５および図６は、この発明に係る粉砕装
置の他の実施例を示す。5 and 6 show another embodiment of the crushing device according to the present invention.
【００３５】図５に示す実施例では、ステータ４を円筒
形リング４ａと、テーパ角度が異なる２枚の第１テーパ
リング４ｂおよび第２テーパリング４ｃとで形成し、各
リング４ａ、４ｂ、４ｃの内面に溝７を設けている。In the embodiment shown in FIG. 5, the stator 4 is formed by a cylindrical ring 4a and two first taper rings 4b and 4c having different taper angles, and each ring 4a, 4b, 4c. A groove 7 is provided on the inner surface of the.
【００３６】また、ロータ８の外周面には円筒形リング
４ａとの間に円筒形の一次粉砕ゾーン２ａを形成する円
筒形外面９と、第１テーパリング４ｂとの間に円錐形の
二次粉砕ゾーン２ｂを形成する第１円錐形外面１０ａ
と、第２テーパリング４ｃとの間に円錐形の三次粉砕ゾ
ーン２ｃを形成する第２円錐形外面１０ｂとを設け、各
外面に凹凸条を設けている。Further, on the outer peripheral surface of the rotor 8, a conical secondary surface 9 is formed between the outer cylindrical surface 9 forming a cylindrical primary crushing zone 2a with the cylindrical ring 4a and the first tapered ring 4b. First conical outer surface 10a forming a grinding zone 2b
And a second conical outer surface 10b forming a conical tertiary crushing zone 2c between the second taper ring 4c and the second taper ring 4c.
【００３７】上記実施例においては、一次粉砕ゾーン２
ａと二次粉砕ゾーン２ｂの交差部および二次粉砕ゾーン
２ｂと三次粉砕ゾーン２ｃの交差部それぞれに粉砕物を
滞留させることができるため、原料をきわめて効果的に
粉砕することができると共に、微細な粉砕物を回収する
ことができる。In the above embodiment, the primary crushing zone 2
Since the pulverized material can be retained at each of the intersections of a and the secondary pulverization zone 2b and the intersections of the secondary pulverization zone 2b and the tertiary pulverization zone 2c, the raw material can be extremely effectively pulverized and finely divided. It is possible to collect various pulverized products.
【００３８】図６に示す実施例では、粉砕室２内に組込
まれたステータ４を軸方向に移動自在に支持し、そのス
テータ４を一対のねじ２１によって軸方向に位置調整で
きるようにしている。In the embodiment shown in FIG. 6, the stator 4 incorporated in the crushing chamber 2 is supported so as to be movable in the axial direction, and the position of the stator 4 can be adjusted in the axial direction by a pair of screws 21. .
【００３９】上記実施例においては、ステータ４の軸方
向の移動によって二次粉砕ゾーン２ｂの大きさ（テーパ
リング４ｂの円錐形内面６とロータ８の円錐形外面１０
間の間隔）を調整することができるため、粉砕物の粉砕
性の良いもので粉砕品を粗くしたい場合の粉砕や温度上
昇に弱い粉砕物を粉砕するとき、二次粉砕ゾーン２ｂを
大きくすることによってこれらの粉砕物の粉砕を可能と
することができ、粉砕の応用範囲を広げることができ
る。In the above-mentioned embodiment, the size of the secondary crushing zone 2b (the conical inner surface 6 of the taper ring 4b and the conical outer surface 10 of the rotor 8) is obtained by the axial movement of the stator 4.
Since it is possible to adjust the (interval), it is necessary to enlarge the secondary crushing zone 2b when crushing a crushed product with good crushability and crushing a crushed product vulnerable to temperature rise. Thus, it is possible to crush these crushed products, and it is possible to expand the range of application of crushing.
【００４０】[0040]
【発明の効果】この発明は以上のように構成したので下
記に示す効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００４１】請求項１に記載の粉砕機においては、ステ
ータの円筒形内面に設けた溝に対する衝突によって原料
を粗砕したのち、一次粉砕ゾーンおよび二次粉砕ゾーン
において溝と凹凸条とによる剪断および摩砕により粉砕
するようにしたから、原料をきわめて効果的に粉砕する
ことができると共に、第２粉砕ゾーンで粉砕されると
き、粒子径の大きな粉砕物は、遠心力の作用により一次
粉砕ゾーンに向けて移動し、その一次粉砕ゾーンと二次
粉砕ゾーンの連通部に滞留して粉砕作用を受けるため、
粒度分布の均一なシャープな微粉砕品を得ることができ
る。In the crusher according to the first aspect, the raw material is roughly crushed by collision with the groove provided on the cylindrical inner surface of the stator, and then shearing and ridges and grooves are formed in the primary crushing zone and the secondary crushing zone. Since the material is pulverized by grinding, the raw material can be extremely effectively pulverized, and when pulverized in the second pulverizing zone, the pulverized material having a large particle size is transferred to the primary pulverizing zone by the action of centrifugal force. Since it moves toward and is retained in the communicating portion of the primary crushing zone and the secondary crushing zone and is subjected to the crushing action,
It is possible to obtain a sharply pulverized product having a uniform particle size distribution.
【００４２】請求項２に記載の粉砕機においては、ロー
タの環状突出部に放射状の案内溝を設けたことによって
原料の流れがスムーズになり、その案内溝の外径側開口
のエッジにより原料を剪断することができるため、原料
を効果的に粗砕することができる。In the crusher according to the second aspect of the present invention, since the radial guide groove is provided in the annular protrusion of the rotor, the flow of the raw material is made smooth, and the raw material is made to flow by the edge of the outer diameter side opening of the guide groove. Since it can be sheared, the raw material can be effectively crushed.
【００４３】請求項３に記載の粉砕機においては、ステ
ータとロータとの間に複数の粉砕ゾーンを形成すること
ができ、各粉砕ゾーンの連通部に粉砕物を滞留させるこ
とができるため、きわめて微細な粉砕物を得ることがで
きる。In the crusher according to the third aspect, a plurality of crushing zones can be formed between the stator and the rotor, and the crushed material can be retained in the communicating portion of each crushing zone, so that it is extremely possible. A finely ground product can be obtained.
【００４４】請求項４に記載の粉砕機においては、ステ
ータの軸方向の移動によってステータの円錐形内面とロ
ータの円錐形外面間の間隔を調整することができるた
め、粉砕の応用範囲を広げることができる。In the crusher according to the fourth aspect, since the distance between the conical inner surface of the stator and the conical outer surface of the rotor can be adjusted by moving the stator in the axial direction, the range of application of crushing can be widened. You can
【図１】この発明に係る粉砕機の第１の実施例を示す縦
断正面図FIG. 1 is a vertical sectional front view showing a first embodiment of a crusher according to the present invention.
【図２】図１のII−II線に沿った断面図FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】同上のステータとロータとを示す側面図FIG. 3 is a side view showing a stator and a rotor of the above.
【図４】同上の要部を拡大して示す断面図FIG. 4 is an enlarged cross-sectional view showing the main part of the above.
【図５】同上粉砕機の第２の実施例を示す断面図FIG. 5 is a sectional view showing a second embodiment of the same crusher.
【図６】同上粉砕機の第３の実施例を示す断面図FIG. 6 is a sectional view showing a third embodiment of the same crusher.
【図７】この発明に係る粉砕機を用いた粉砕プラントの
概略図FIG. 7 is a schematic diagram of a crushing plant using a crusher according to the present invention.
【図８】従来の粉砕機を示す縦断正面図FIG. 8 is a vertical sectional front view showing a conventional crusher.
１ ケーシング ２ 粉砕室 ２ａ 一次粉砕ゾーン ２ｂ 二次粉砕ゾーン ３ 原料供給路 ４ ステータ ５ 円筒形内面 ６ 円錐形内面 ７ 溝 ８ ロータ ９ 円筒形外面 １０ 円錐形外面 １１ 凹凸条 １２ 環状突出部 １３ 案内溝 １４ 回収室 1 Casing 2 Grinding Chamber 2a Primary Grinding Zone 2b Secondary Grinding Zone 3 Raw Material Supply Channel 4 Stator 5 Cylindrical Inner Surface 6 Conical Inner Surface 7 Groove 8 Rotor 9 Cylindrical Outer Surface 10 Conical Outer Surface 11 Concavo-convex Line 12 Annular Projection 13 Guide Groove 14 Collection room
Claims (4)
部に連通して原料供給路を形成したケーシングと、上記
粉砕室内の外周部に組込まれたステータと、そのステー
タの内側に組込まれ、一方向に高速回転されるロータと
から成り、前記ステータには粉砕室内への原料入口側に
円筒形内面と、その内面に連続して円錐形内面とを設
け、この両内面に軸方向に延びる溝を円周方向に所要の
間隔をおいて設け、前記ロータには上記円筒形内面との
間に円筒形の一次粉砕ゾーンを形成する円筒形外面と、
円錐形内面との間で円錐形の二次粉砕ゾーンを形成する
円錐形外面とを設け、上記両外面に軸方向に延びる凹凸
条を円周方向に形成し、前記二次粉砕ゾーンに連通して
粉砕物の回収室を設けた高速回転衝撃式粉砕機。1. A casing having a circular crushing chamber, which communicates with a central portion of the crushing chamber to form a raw material supply path, a stator incorporated in an outer peripheral portion of the crushing chamber, and an inside of the stator. The stator comprises a rotor that is rotated at a high speed in one direction.The stator is provided with a cylindrical inner surface on the raw material inlet side into the crushing chamber and a conical inner surface continuous with the inner surface. A groove extending in the circumferential direction at a required interval in the circumferential direction, and the rotor has a cylindrical outer surface forming a cylindrical primary grinding zone between the rotor and the cylindrical inner surface,
A conical outer surface that forms a conical secondary grinding zone with the conical inner surface is provided, and an uneven line extending in the axial direction is circumferentially formed on both outer surfaces and communicates with the secondary grinding zone. High-speed rotary impact crusher with a crushed material recovery chamber.
において、ロータの原料入口側の端面外周部に環状膨出
部を形成し、その環状膨出部に複数の案内溝を放射状に
設けた高速回転衝撃式粉砕機。2. The high-speed rotary impact type crusher according to claim 1, wherein an annular bulging portion is formed on an outer peripheral portion of an end surface of the rotor on the raw material inlet side, and a plurality of guide grooves are radially formed in the annular bulging portion. A high-speed rotary impact type crusher provided.
粉砕機において、ステータの円錐形内面とロータの円錐
形外面を、テーパ角度が異なる複数の円錐面で形成した
高速回転衝撃式粉砕機。3. The high-speed rotary impact type crusher according to claim 1, wherein the inner conical surface of the stator and the outer conical surface of the rotor are formed by a plurality of conical surfaces having different taper angles. Machine.
回転衝撃式粉砕機において、ステータを軸方向に位置調
整可能に設けた高速回転衝撃式粉砕機。4. The high-speed rotary impact type crusher according to claim 1, wherein a stator is provided so that its position can be adjusted in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04294488A JP3135715B2 (en) | 1992-11-02 | 1992-11-02 | High-speed rotary impact crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04294488A JP3135715B2 (en) | 1992-11-02 | 1992-11-02 | High-speed rotary impact crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06142534A true JPH06142534A (en) | 1994-05-24 |
| JP3135715B2 JP3135715B2 (en) | 2001-02-19 |
Family
ID=17808417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04294488A Expired - Fee Related JP3135715B2 (en) | 1992-11-02 | 1992-11-02 | High-speed rotary impact crusher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3135715B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100942057B1 (en) * | 2008-05-22 | 2010-02-11 | 강원대학교산학협력단 | A classification and shattering equipment |
| CN106334597A (en) * | 2015-07-14 | 2017-01-18 | 四川雄健实业有限公司 | Strong impact flake disrupter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015214856B4 (en) * | 2015-08-04 | 2017-07-06 | Schaeffler Technologies AG & Co. KG | Ball Screw |
-
1992
- 1992-11-02 JP JP04294488A patent/JP3135715B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100942057B1 (en) * | 2008-05-22 | 2010-02-11 | 강원대학교산학협력단 | A classification and shattering equipment |
| CN106334597A (en) * | 2015-07-14 | 2017-01-18 | 四川雄健实业有限公司 | Strong impact flake disrupter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3135715B2 (en) | 2001-02-19 |
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