JP2002136890A - Pulverization/classification treatment equipment - Google Patents
Pulverization/classification treatment equipmentInfo
- Publication number
- JP2002136890A JP2002136890A JP2000337678A JP2000337678A JP2002136890A JP 2002136890 A JP2002136890 A JP 2002136890A JP 2000337678 A JP2000337678 A JP 2000337678A JP 2000337678 A JP2000337678 A JP 2000337678A JP 2002136890 A JP2002136890 A JP 2002136890A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- classifier
- cylinder
- fine powder
- coarse
- 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.)
- Withdrawn
Links
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、粉体の粉砕処理
と、粉砕処理後の粉体の分級処理とを繰り返し行なって
目的とする粒度の微粉を得ることができるようにした粉
砕・分級処理装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulverizing / classifying process in which a fine powder having a desired particle size can be obtained by repeatedly performing a pulverizing process of a powder and a classifying process of the powder after the pulverizing process. It concerns the device.
【０００２】[0002]
【従来の技術】粉砕・分級処理装置として、粉体を粗粉
と微粉とに遠心分離する分級機の粗粉排出口に粉砕機を
接続し、その粉砕機によって粗粉を粉砕し、粉砕処理後
の粉体を前記分級機に戻して再度分級処理し、分級処理
後の微粉を捕集機に吸引搬送して捕集するようにしたも
のが知られている。2. Description of the Related Art As a pulverizing and classifying apparatus, a pulverizer is connected to a coarse powder discharge port of a classifier for centrifugally separating powder into coarse powder and fine powder, and the coarse powder is pulverized by the pulverizer. It is known that the powder obtained after returning to the classifier is classified again, and the fine powder after the classification is suctioned and conveyed to a collector to be collected.
【０００３】上記粉砕・分級処理装置を形成する分級
機、粉砕機および捕集機は、複数の部品によって形成さ
れ、これらの部品の接続部の気密が不完全であると、粉
体が漏洩し、分級処理および粉砕処理に影響を与えるた
め、その接続部にシール部材を取付けて気密性を高める
ようにしている。A classifier, a crusher, and a collector, which form the above-mentioned crushing / classifying apparatus, are formed by a plurality of parts. If the connection between these parts is not completely airtight, powder leaks. In order to affect the classifying process and the pulverizing process, a seal member is attached to a connection portion thereof to improve airtightness.
【０００４】[0004]
【発明が解決しようとする課題】ところで、従来から知
られている粉砕・分級処理装置においては、粉体の流路
に多くの金属面が露出しており、また、部品の接続部に
設けられた気密用シール部材も接続すべき２部品の対向
面で挟持されて対向面間に形成された隙間に内周面が露
出する取付けであるため、これらの金属面およびシール
部材が流路を流動する粉体との接触によって摩耗し易
く、その摩耗粉が製品に混入するおそれが多い。By the way, in the conventionally known pulverizing / classifying apparatus, many metal surfaces are exposed in the flow path of the powder, and the pulverizing / classifying apparatus is provided at the connecting part of the parts. The airtight seal member is also sandwiched between the opposing surfaces of the two components to be connected, and the inner peripheral surface is exposed in a gap formed between the opposing surfaces. Therefore, these metal surfaces and the seal member flow through the flow path. Wear due to contact with the powder to be worn, and the wear powder is likely to be mixed into the product.
【０００５】このため、医薬品や電子部品材料のよう
に、特に、金属粉やシール部材の摩耗粉など、異物の混
入を嫌う粉体の粉砕・分級処理には問題が生じる。[0005] Therefore, there is a problem in the pulverization / classification treatment of powders such as pharmaceuticals and electronic parts materials which are not likely to be mixed with foreign substances such as metal powders and abrasion powders of seal members.
【０００６】この発明の課題は、製品中に上記のような
摩耗粉が混入するのを防止することができるようにした
粉砕・分級処理装置を提供することである。[0006] An object of the present invention is to provide a pulverizing / classifying apparatus capable of preventing the above-mentioned abrasion powder from being mixed into a product.
【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、粉体供給筒から分級室内に
供給される粉体を、その分級室内で高速旋回させて粗粉
と微粉とに遠心分離する分級機と、その分級機の粗粉排
出口に接続されるホッパを上部に有し、そのホッパの下
端から排出される粗粉を高圧エアと共に衝突部材に衝突
させて粉砕する粉砕機と、その粉砕機によって粉砕され
た粉体を前記分級機の粉体供給筒内に戻す循環筒と、そ
の循環筒に接続された粉体供給ホッパと、前記分級機に
よって遠心分離された微粉を外部に吸引搬送する微粉排
出筒と、その微粉排出筒から送り込まれる微粉を捕集す
る捕集機とから成る粉砕・分級処理装置において、粉体
と接触する面の全てをセラミックで形成した構成を採用
している。In order to solve the above-mentioned problems, according to the present invention, a powder supplied from a powder supply cylinder into a classification chamber is swirled at a high speed in the classification chamber to form coarse powder and fine powder. And a hopper connected to the coarse powder discharge port of the classifier, and the coarse powder discharged from the lower end of the hopper is collided with the high-pressure air against the collision member to be pulverized. A crusher, a circulation tube for returning the powder crushed by the crusher into the powder supply tube of the classifier, a powder supply hopper connected to the circulation tube, and centrifuged by the classifier. In a pulverizing / classifying processing apparatus including a fine powder discharge tube that suctions and conveys the fine powder to the outside and a collector that collects the fine powder sent from the fine powder discharge tube, all the surfaces that are in contact with the powder are formed of ceramic. The configuration is adopted.
【０００８】上記のように、粉体と接触する面の全てを
耐摩耗性に優れたセラミックで形成することにより、粉
体との接触によって摩耗粉が発生するのを防止すること
ができ、製品中に摩耗粉が混入するのを防止することが
できる。[0008] As described above, by forming all the surfaces that come into contact with the powder with ceramics having excellent wear resistance, it is possible to prevent the generation of wear powder due to the contact with the powder. It is possible to prevent wear powder from being mixed therein.
【０００９】ここで、セラミックは、分級機、粉砕機お
よび捕集機のそれぞれを形成する複数の部品の粉体接触
面、並びに循環筒、粉体供給ホッパおよび微粉排出筒の
内面に設けるようにしてもよく、あるいは、これらの部
品の全てをセラミックで形成してもよい。Here, the ceramic is provided on the powder contact surfaces of a plurality of parts forming each of the classifier, the crusher and the collector, and on the inner surfaces of the circulation cylinder, the powder supply hopper and the fine powder discharge cylinder. Alternatively, all of these components may be formed of ceramic.
【００１０】多数の部品をセラミックで形成する場合、
その部品相互の接続部に、第１対向面と、その第１対向
面と部品の接続方向に段差を有する第２対向面とを設け
ることにより、部品接続部の気密性を高めることがで
き、粉体の外部漏洩および外部から内部への異物の侵入
を効果的に防止することができる。When a large number of components are formed of ceramic,
By providing a first opposing surface and a second opposing surface having a step in the connection direction of the first opposing surface and the component at the connection between the components, the airtightness of the component connecting portion can be improved. External leakage of the powder and entry of foreign matter from the outside to the inside can be effectively prevented.
【００１１】また、第２対向面間をシール部材でシール
することにより、粉体の外部漏洩および異物の侵入をよ
り効果的に防止することができると共に、気密保持用の
シール部材が粉体と接触するのを避けることができ、シ
ール部材が粉体との接触によって摩耗するのを防止する
ことができる。Further, by sealing the gap between the second facing surfaces with a seal member, it is possible to more effectively prevent the external leakage of the powder and the intrusion of foreign matter, and the sealing member for maintaining the airtightness is made of the powder. Contact can be avoided, and wear of the seal member due to contact with the powder can be prevented.
【００１２】[0012]
【発明の実施の形態】以下、この発明の実施の形態を図
面に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１に示すように、この発明に係る粉砕・
分級処理装置は、粉体を粗粉と微粉とに遠心分離する分
級機１と、その分級機１によって分級された粗粉を粉砕
処理する粉砕機２０と、分級機１によって分級された微
粉を捕集する捕集機３０を有している。[0013] As shown in FIG.
The classifier is a classifier 1 for centrifuging the powder into coarse powder and fine powder, a crusher 20 for crushing the coarse powder classified by the classifier 1, and a fine powder classified by the classifier 1. It has a collector 30 for collecting.
【００１４】分級機１は、カバー２によって上記開口が
閉塞された粉体供給筒３の下端に分級筒４を接続し、そ
の分級筒４内に傘状の分級板５を設けて、その外周と分
級筒４の内周面間に環状の粗粉出口６を形成している。In the classifier 1, a classification tube 4 is connected to the lower end of the powder supply tube 3 whose opening is closed by a cover 2, and an umbrella-shaped classification plate 5 is provided in the classification tube 4, and its outer periphery is provided. An annular coarse powder outlet 6 is formed between the inner peripheral surface of the classification cylinder 4 and the inner peripheral surface.
【００１５】また、前記カバー２を上下に貫通する微粉
案内筒７の下端部に前記分級板５との間で分級室８を形
成する分級カバー９を一体に設け、その分級カバー９の
外周と粉体供給筒３の内周面間に環状の粉体入口１０を
形成している。Further, a classifying cover 9 for forming a classifying chamber 8 between the classifying plate 5 and the classifying plate 5 is integrally provided at a lower end portion of the fine powder guide cylinder 7 penetrating the cover 2 up and down. An annular powder inlet 10 is formed between the inner peripheral surfaces of the powder supply cylinder 3.
【００１６】分級筒４は、上部リング４ａ、中間リング
４ｂおよび下部リング４ｃから形成され、中間リング４
ｂには図３に示すように、分級室８で旋回する粉体の旋
回方向に二次エアを流入させる複数の通路１１が周方向
に等間隔に形成されている。The classifying cylinder 4 includes an upper ring 4a, an intermediate ring 4b, and a lower ring 4c.
As shown in FIG. 3, a plurality of passages 11 through which secondary air flows in the swirling direction of the powder swirling in the classification chamber 8 are formed at equal intervals in the circumferential direction.
【００１７】また、分級筒４の外周には前記通路１１の
空気入口を覆う環状ダクト１２が設けられ、その環状ダ
クト１２の外周接線方向に延びる空気流入筒１３の入口
にフィルタ１４が設けられ、そのフィルタ１４を通過し
たクリーンエアが環状ダクト１２および通路１１から分
級室８内に流入するようになっている。An annular duct 12 is provided on the outer circumference of the classifying cylinder 4 to cover the air inlet of the passage 11, and a filter 14 is provided at an inlet of an air inflow cylinder 13 extending in a tangential direction of the outer circumference of the annular duct 12. The clean air that has passed through the filter 14 flows into the classification chamber 8 from the annular duct 12 and the passage 11.
【００１８】上記の構成から成る分級機１において、粉
体供給筒３内の上部に送り込まれる粉体は、その粉体供
給筒３の内部を旋回しつつ下降して、粉体入口１０から
分級室８内に流入し、その分級室８で旋回する。このと
き、通路１１から分級室８内に二次エアが流入し、その
二次エアにより粉体の旋回速度が加速され、粉体は粗粉
と微粉とに遠心分離される。In the classifier 1 having the above-described structure, the powder fed into the upper portion of the powder supply tube 3 descends while turning inside the powder supply tube 3 and classifies from the powder inlet 10. It flows into the chamber 8 and turns in the classifying chamber 8. At this time, the secondary air flows into the classifying chamber 8 from the passage 11, and the turning speed of the powder is accelerated by the secondary air, and the powder is centrifuged into coarse powder and fine powder.
【００１９】分級室８内の外周部で旋回する粗粉は粗粉
出口６から下方に排出され、一方、分級室８内の中央部
に移行する微粉は、微粉案内筒７内に付与される吸引力
によってその微粉案内筒７内に流れ込む。The coarse powder swirling at the outer peripheral portion in the classification chamber 8 is discharged downward from the coarse powder outlet 6, while the fine powder moving to the central portion in the classification chamber 8 is provided in the fine powder guide cylinder 7. The powder flows into the fine powder guide cylinder 7 by the suction force.
【００２０】上記のような分級機１において、粉体供給
筒３、分級筒４、分級板５、分級カバー９等の粉体と接
触する各部品はセラミックによって形成されている。こ
のセラミックはきわめて優れた耐摩耗性を有しているた
め、粉体との接触によって摩耗するという不都合の発生
は非常に少なく、摩耗粉が粉体に混入するのが防止され
る。In the classifier 1 as described above, the parts that come into contact with the powder, such as the powder supply cylinder 3, the classification cylinder 4, the classification plate 5, and the classification cover 9, are made of ceramic. Since this ceramic has extremely excellent abrasion resistance, the inconvenience of abrasion due to contact with the powder is very small, and the abrasion powder is prevented from being mixed into the powder.
【００２１】図２は、上部カバー２と粉体供給筒３の接
続構造を示す。上記両部品の接続部には第１対向面１５
と、その外周面に設けられた第２対向面１６とが両部品
の接続方向に段差をもって形成され、第２対向面１６間
には接続部の気密を保持するシール部材１７が取付けら
れている。FIG. 2 shows a connection structure between the upper cover 2 and the powder supply cylinder 3. A first facing surface 15 is provided at a connection portion between the two parts.
And a second opposing surface 16 provided on the outer peripheral surface thereof are formed with a step in the connection direction of the two parts, and a seal member 17 for maintaining the airtightness of the connection portion is attached between the second opposing surfaces 16. .
【００２２】上記のような接続構造は、図１に示す粉体
供給筒３と分級筒４の上部リング４ａ、その上部リング
４ａと中間リング４ｂ、および中間リング４ｂと下部リ
ング４ｃの接続部にも採用されている。The connection structure as described above is used to connect the upper ring 4a of the powder supply cylinder 3 and the classification cylinder 4 shown in FIG. 1, the upper ring 4a and the intermediate ring 4b, and the connection between the intermediate ring 4b and the lower ring 4c. Has also been adopted.
【００２３】分級機１を形成する各部品の接続部に図２
に示す接続構造を採用することにより、シール部材１７
が粉体と接触するのを避けることができ、シール部材１
７が粉体との接触により摩耗して、その摩耗粉が粉体中
に混入するのを確実に防止することができる。FIG. 2 shows a connecting portion of each component forming the classifier 1.
By adopting the connection structure shown in FIG.
Can be prevented from contacting the powder, and the sealing member 1
7 can be reliably prevented from being worn due to contact with the powder and the worn powder being mixed into the powder.
【００２４】なお、接続面の密着性が良好な場合、シー
ル部材１７を不要とすることができる。If the connection surface has good adhesion, the sealing member 17 can be dispensed with.
【００２５】図１に示すように、粉砕機２０は、ホッパ
２１と、その下端に接続されたハウジング２２とを有
し、前記ホッパ２１は分級機１の分級筒４の下端に接続
され、分級筒４から落下排出される粗粉を受け取るよう
になっている。As shown in FIG. 1, the crusher 20 has a hopper 21 and a housing 22 connected to the lower end thereof. The hopper 21 is connected to the lower end of the classification cylinder 4 of the classifier 1, The coarse powder dropped and discharged from the cylinder 4 is received.
【００２６】分級筒４とホッパ２１の接続部およびホッ
パ２１とハウジング２２の接続部には、図２に示す接続
構造と同様の接続構造が採用されている。A connection structure similar to the connection structure shown in FIG. 2 is employed for the connection between the classification cylinder 4 and the hopper 21 and the connection between the hopper 21 and the housing 22.
【００２７】ハウジング２２には、高圧エアを噴射する
ノズル２３が支持され、そのノズル２３の前側に形成さ
れた粉砕室２４内に衝突部材２５が組込まれている。衝
突部材２５にはノズル２３からの高圧エアが衝突される
平坦な衝突面２５ａに円錐形の突起２５ｂが設けられて
いる。A nozzle 23 for jetting high-pressure air is supported by the housing 22, and a collision member 25 is incorporated in a pulverizing chamber 24 formed in front of the nozzle 23. The collision member 25 is provided with a conical projection 25b on a flat collision surface 25a against which high-pressure air from the nozzle 23 collides.
【００２８】ノズル２３に形成されたエア流路２６は、
スロート部２６ａを有し、そのスロート部２６ａの前側
にディフューザ部２６ｂが設けられている。また、ノズ
ル２３には上面からディフューザ部２６ｂに連通する粗
粉導入孔２７が形成され、この粗粉導入孔２７はハウジ
ング２２に設けられた粗粉落下孔２８を介してホッパ２
１の下端出口と連通している。The air flow path 26 formed in the nozzle 23 is
It has a throat portion 26a, and a diffuser portion 26b is provided in front of the throat portion 26a. A coarse powder introduction hole 27 communicating with the diffuser portion 26b from the upper surface is formed in the nozzle 23, and the coarse powder introduction hole 27 is formed through a coarse powder drop hole 28 provided in the housing 22.
1 communicates with the lower end outlet.
【００２９】上記の構成から成る粉砕機２０において
は、ノズル２３に高圧エアを供給し、エア流路２６に流
れる高圧エアの流動によって分級機１からホッパ２１内
に排出される粗粉をノズル２３内に流入させ、その粗粉
を高圧エアと共に衝突部材２５に衝突させて粗粉を一次
粉砕するようにしている。また、一次粉砕され、衝突面
２５ａの外周に飛散する一次粉砕物を粉砕室２４の内周
面に衝突させて二次粉砕し、その粉砕処理後の粗粉を排
出口２９から排出させるようにしている。In the crusher 20 having the above structure, high-pressure air is supplied to the nozzle 23, and coarse powder discharged from the classifier 1 into the hopper 21 by the flow of the high-pressure air flowing through the air flow path 26 is supplied to the nozzle 23. The coarse powder is caused to collide with the collision member 25 together with the high-pressure air, so that the coarse powder is primarily pulverized. Further, the primary pulverized material, which is primary pulverized and scatters on the outer periphery of the collision surface 25a, is caused to collide with the inner peripheral surface of the pulverizing chamber 24 to be subjected to secondary pulverization. ing.
【００３０】粉砕機２０を形成するホッパ２１、ハウジ
ング２２、ノズル２３および衝突部材２５のそれぞれは
セラミックによって形成され、粗粉との接触によってこ
れらの各部品が摩耗し、その摩耗粉が粗粉中に混入する
ことのないようにされている。Each of the hopper 21, the housing 22, the nozzle 23, and the collision member 25 forming the crusher 20 is formed of ceramic, and these parts are worn by contact with the coarse powder, and the wear powder is removed from the coarse powder. So that it does not get mixed in.
【００３１】粉砕機２０の排出口２９には循環筒４０の
一端が接続されている。循環筒４０の他端には粉体供給
ホッパ４１を支持する連結筒４２が接続され、その連結
筒４２が分級機１の粉体供給筒３に設けられた接続筒３
ａに接続されている。One end of a circulation tube 40 is connected to the discharge port 29 of the crusher 20. The other end of the circulation tube 40 is connected to a connection tube 42 supporting a powder supply hopper 41, and the connection tube 42 is connected to the connection tube 3 provided in the powder supply tube 3 of the classifier 1.
a.
【００３２】このため、粉砕機２０によって粉砕処理さ
れた粗粉は分級機１の粉体供給筒３内に送り込まれて再
度分級処理される。また、循環筒４０内で粗粉がエアと
共に流動するとき、粉体供給ホッパ４１内の粉体が連結
筒４２内に吸引され、粗粉と共に分級機１に供給され
る。For this reason, the coarse powder pulverized by the pulverizer 20 is fed into the powder supply cylinder 3 of the classifier 1 and subjected to the classification again. When the coarse powder flows with air in the circulation cylinder 40, the powder in the powder supply hopper 41 is sucked into the connecting cylinder 42 and supplied to the classifier 1 together with the coarse powder.
【００３３】ここで、循環筒４０と粉砕機２０における
ハウジング２２の接続、循環筒４０と連結筒４２の接続
および連結筒４２と接続筒３ａの接続には、図２に示す
接続構造と同様の接続構造が採用され、接続部を気密に
保持するシール部材が粉体と接触することのない構成と
されている。Here, the connection between the circulation tube 40 and the housing 22 in the crusher 20, the connection between the circulation tube 40 and the connection tube 42, and the connection between the connection tube 42 and the connection tube 3a are the same as the connection structure shown in FIG. A connection structure is adopted, and the seal member that keeps the connection portion airtight is configured so as not to contact the powder.
【００３４】また、循環筒４０、連結筒４２およびホッ
パ４１はセラミックによって形成されている。このた
め、これらの各部品が粉砕処理後の粗粉およびホッパ４
１内の粉体との接触により摩耗して、その摩耗粉が粉体
中に混入することがないようにされている。The circulation tube 40, the connection tube 42 and the hopper 41 are formed of ceramic. For this reason, each of these parts is made of coarse powder after crushing and hopper 4.
1 to prevent wear due to contact with the powder in 1 and the wear powder from mixing into the powder.
【００３５】分級機１によって分級処理された微粉は、
微粉案内筒７に接続された微粉排出筒５０によって捕集
機３０に導かれる。The fine powder classified by the classifier 1 is
The powder is guided to the collector 30 by the fine powder discharge cylinder 50 connected to the fine powder guide cylinder 7.
【００３６】捕集機３０はサイクロン捕集機から成る。
この捕集機３０はカバー３１によって上部開口が閉塞さ
れたサイクロン胴３２と、そのサイクロン胴３２の下端
に接続された有底の捕集筒３３とを有し、前記カバー３
１には排気口３１ａが形成されている。The collector 30 comprises a cyclone collector.
The collector 30 includes a cyclone cylinder 32 whose upper opening is closed by a cover 31, and a bottomed collection cylinder 33 connected to a lower end of the cyclone cylinder 32.
1 has an exhaust port 31a.
【００３７】前記サイクロン胴３２は、図５に示すよう
に、外周上部に外周接線方向に延びる接続筒３２ａを有
し、その接続筒３２ａに前記微粉排出筒５０が接続され
ている。As shown in FIG. 5, the cyclone cylinder 32 has a connection tube 32a extending in the tangential direction at the upper part of the outer periphery, and the fine powder discharge tube 50 is connected to the connection tube 32a.
【００３８】上記の構成から成る捕集機３０において
は、排気筒３１ａ内に吸引力を付与する状態で微粉排出
筒５０からサイクロン胴３２内に微粉を流入させ、上記
サイクロン胴３２の内周面に沿って旋回しつつ下降する
微粉を捕集筒３３で捕集し、微粉と共に送られるエアを
排気口３１ａから排出させるようにしている。In the collector 30 having the above-described structure, the fine powder flows into the cyclone cylinder 32 from the fine powder discharge cylinder 50 in a state where the suction force is applied to the exhaust cylinder 31a. The fine powder that descends while turning along with is collected by the collecting cylinder 33, and the air sent together with the fine powder is discharged from the exhaust port 31a.
【００３９】前記捕集機３０を形成するカバー３１、サ
イクロン胴３２および捕集筒３３は耐摩耗性に優れたセ
ラミックによって形成されている。また、微粉排出筒５
０もセラミックにより形成されている。The cover 31, the cyclone cylinder 32 and the collecting cylinder 33 forming the collecting machine 30 are made of ceramic having excellent wear resistance. In addition, the fine powder discharge cylinder 5
0 is also formed of ceramic.
【００４０】このため、これらの各部品が微粉との接触
により摩耗するということは少なく、その摩耗粉が微粉
（製品）中に混入するのが防止される。For this reason, these parts rarely wear due to contact with the fine powder, and the wear powder is prevented from being mixed into the fine powder (product).
【００４１】また、微粉排出筒５０と接続筒３２ａとの
接続、カバー３１とサイクロン胴３２との接続およびサ
イクロン胴３２と捕集筒３３との接続には、図２に示す
接続構造と同様の接続構造が採用され、接続部の気密を
保持するシール部材が微粉と接触することのない構造と
されている。The connection between the fine powder discharge cylinder 50 and the connection cylinder 32a, the connection between the cover 31 and the cyclone cylinder 32, and the connection between the cyclone cylinder 32 and the collection cylinder 33 are the same as the connection structure shown in FIG. A connection structure is adopted, and the seal member for maintaining the airtightness of the connection portion does not come into contact with the fine powder.
【００４２】なお、セラミックで形成された部品を補強
する目的で、セラミック製部品の外側に補強材を設ける
ようにしてもよい。Note that a reinforcing material may be provided outside the ceramic component for the purpose of reinforcing the component formed of ceramic.
【００４３】[0043]
【発明の効果】以上のように、この発明においては、粉
体と接触する面の全てをセラミックで形成したことによ
り、粉砕・分級処理装置を形成する各部品が粉体との接
触によって摩耗するのを防止することができ、製品中に
摩耗粉が混入するのを防止することができる。このた
め、医薬品や電子部品材料のように、金属粉やシール部
材の摩耗粉など、異物の混入を嫌う粉体の分級処理に際
してきわめて有効である。As described above, according to the present invention, since all the surfaces that come into contact with the powder are made of ceramic, the parts forming the pulverizing / classifying apparatus wear due to the contact with the powder. Can be prevented and wear powder can be prevented from being mixed into the product. For this reason, it is very effective in classifying powders which are not likely to be mixed with foreign substances such as metal powders and abrasion powders of seal members, such as pharmaceuticals and electronic component materials.
【図１】この発明に係る粉砕・分級プラントの断面図FIG. 1 is a sectional view of a pulverizing / classifying plant according to the present invention.
【図２】図１に示す分級機の上部カバーと粉体供給筒の
接続部の構造を示す拡大断面図FIG. 2 is an enlarged sectional view showing a structure of a connection portion between an upper cover and a powder supply cylinder of the classifier shown in FIG.
【図３】図１のIII −III 線に沿った断面図FIG. 3 is a sectional view taken along the line III-III in FIG. 1;
【図４】図１のIV−IV線に沿った断面図FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;
【図５】図１のＶ−Ｖ線に沿った断面図FIG. 5 is a sectional view taken along the line VV of FIG. 1;
１ 分級機 ３ 粉体供給筒 ８ 分級室 １５ 第１対向面 １６ 第２対向面 ２０ 粉砕機 ２１ ホッパ ３０ 捕集機 ４０ 循環筒 ４１ ホッパ ５０ 微粉排出筒 DESCRIPTION OF SYMBOLS 1 Classifier 3 Powder supply cylinder 8 Classification chamber 15 1st opposing surface 16 2nd opposing surface 20 Crusher 21 Hopper 30 Collector 40 Circulation cylinder 41 Hopper 50 Fine powder discharge cylinder
Claims (4)
体を、その分級室内で高速旋回させて粗粉と微粉とに遠
心分離する分級機と、その分級機の粗粉排出口に接続さ
れるホッパを上部に有し、そのホッパの下端から排出さ
れる粗粉を高圧エアと共に衝突部材に衝突させて粉砕す
る粉砕機と、その粉砕機によって粉砕された粉体を前記
分級機の粉体供給筒内に戻す循環筒と、その循環筒に接
続された粉体供給ホッパと、前記分級機によって遠心分
離された微粉を外部に吸引搬送する微粉排出筒と、その
微粉排出筒から送り込まれる微粉を捕集する捕集機とか
ら成る粉砕・分級処理装置において、粉体と接触する面
の全体をセラミックで形成したことを特徴とする粉砕・
分級処理装置。1. A classifier for rotating powder supplied from a powder supply cylinder into a classifying chamber at a high speed in the classifying chamber to centrifugally separate the powder into coarse powder and fine powder, and a coarse powder outlet of the classifier. A crusher that has a hopper to be connected at the upper part, crushes the coarse powder discharged from the lower end of the hopper by colliding with a collision member together with high-pressure air, and a powder crushed by the crusher. A circulation cylinder returning to the inside of the powder supply cylinder, a powder supply hopper connected to the circulation cylinder, a fine powder discharge cylinder for sucking and conveying the fine powder centrifugally separated by the classifier to the outside, and feeding the fine powder from the fine powder discharge cylinder And a collector for collecting fine powder to be collected, characterized in that the entire surface in contact with the powder is formed of ceramic.
Classifier.
ぞれを形成する複数の部品のうち、粉体と接触する部品
の全てと、循環筒、粉体供給ホッパおよび微粉排出筒の
それぞれをセラミックで形成した請求項１に記載の粉砕
・分級処理装置。2. Among the plurality of parts forming each of the classifier, the crusher and the collector, all of the parts that come into contact with the powder, and the circulation cylinder, the powder supply hopper and the fine powder discharge cylinder, The pulverizing / classifying apparatus according to claim 1, wherein the pulverizing / classifying apparatus is made of ceramic.
と、その第１対向面と部品の接続方向に段差を有する第
２対向面とを設けた請求項２に記載の粉砕・分級処理装
置。3. The pulverizing / classifying device according to claim 2, wherein a first opposing surface and a second opposing surface having a step in a connecting direction of the first opposing surface and the component are provided at the connection part between the components. Processing equipment.
した請求項３に記載の粉砕・分級処理装置。4. The pulverizing / classifying apparatus according to claim 3, wherein a gap between the second facing surfaces is sealed with a sealing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337678A JP2002136890A (en) | 2000-11-06 | 2000-11-06 | Pulverization/classification treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337678A JP2002136890A (en) | 2000-11-06 | 2000-11-06 | Pulverization/classification treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002136890A true JP2002136890A (en) | 2002-05-14 |
Family
ID=18813023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000337678A Withdrawn JP2002136890A (en) | 2000-11-06 | 2000-11-06 | Pulverization/classification treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002136890A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100657007B1 (en) * | 2004-11-12 | 2006-12-13 | 한국기계연구원 | Turbo classifier with electrostatic core |
| CN104001603A (en) * | 2014-05-01 | 2014-08-27 | 铜陵钱谊化工设备有限责任公司 | Double-jet-pipe type pulverizer |
| CN106035981A (en) * | 2016-07-18 | 2016-10-26 | 山东省阳信万信生物制品开发有限公司 | Extraction device for vegetable protein |
| CN107282192A (en) * | 2017-08-04 | 2017-10-24 | 安徽吉乃尔电器科技有限公司 | A kind of automatic material-absorbing particle pulverizer mill |
| KR101797195B1 (en) * | 2010-07-30 | 2017-11-13 | 호소가와미크론 가부시키가이샤 | Jet mill |
| CN107617502A (en) * | 2017-11-02 | 2018-01-23 | 江苏吉能达环境能源科技有限公司 | Multilevel grinding superfine powder production equipment |
-
2000
- 2000-11-06 JP JP2000337678A patent/JP2002136890A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100657007B1 (en) * | 2004-11-12 | 2006-12-13 | 한국기계연구원 | Turbo classifier with electrostatic core |
| KR101797195B1 (en) * | 2010-07-30 | 2017-11-13 | 호소가와미크론 가부시키가이샤 | Jet mill |
| CN104001603A (en) * | 2014-05-01 | 2014-08-27 | 铜陵钱谊化工设备有限责任公司 | Double-jet-pipe type pulverizer |
| CN106035981A (en) * | 2016-07-18 | 2016-10-26 | 山东省阳信万信生物制品开发有限公司 | Extraction device for vegetable protein |
| CN106035981B (en) * | 2016-07-18 | 2024-04-12 | 山东省阳信万信生物制品开发有限公司 | Plant protein extraction element |
| CN107282192A (en) * | 2017-08-04 | 2017-10-24 | 安徽吉乃尔电器科技有限公司 | A kind of automatic material-absorbing particle pulverizer mill |
| CN107617502A (en) * | 2017-11-02 | 2018-01-23 | 江苏吉能达环境能源科技有限公司 | Multilevel grinding superfine powder production equipment |
| CN107617502B (en) * | 2017-11-02 | 2023-10-24 | 江苏吉能达环境能源科技有限公司 | Multistage grinding superfine powder production equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR950002859A (en) | Method for shredding materials of different sizes and apparatus | |
| JP4907655B2 (en) | Airflow classifier and classification plant | |
| JP2002136890A (en) | Pulverization/classification treatment equipment | |
| GB1154358A (en) | Improvements in or relating to methods of and apparatus for the Classification of Materials | |
| JP3845214B2 (en) | Classifier and rectifier | |
| KR20060131947A (en) | Crushing and classifying device | |
| JP4747130B2 (en) | Powder classifier | |
| GB2371001A (en) | Pre-separator for a cascade impactor | |
| JP2004057843A (en) | Classifier and production method of toner using the same | |
| JP3091289B2 (en) | Collision type air crusher | |
| EP2125229B2 (en) | Air separator for comminuted materials | |
| JPH0222060Y2 (en) | ||
| JP3091281B2 (en) | Collision type air crusher | |
| RU2201811C2 (en) | Centrifugal air-pass classifier | |
| CN116889917B (en) | High-pressure air flow back rotary collision type crushing device and application thereof in konjaku flour preparation | |
| JP3185065B2 (en) | Collision type air crusher | |
| JPH01317555A (en) | Air-blast crushed material classifying apparatus | |
| JPH0739772A (en) | Roller mill having rotary classifier built therein | |
| JP2967304B2 (en) | Classification crusher | |
| JPH06106133A (en) | Powder classifier | |
| JP5075584B2 (en) | Crusher | |
| JPS6321324Y2 (en) | ||
| JP2022139700A (en) | Fine particle recovery hopper for crusher | |
| JP2005334698A (en) | Fine powder recovery apparatus | |
| JPS6342747A (en) | Vertical mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20080108 |