JPS6411341B2 - - Google Patents

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、固体材料の微粉砕方法および装置に
係り、特に、湿式粉砕による固体材料の微粉砕方
法および装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method and apparatus for pulverizing solid materials, and particularly to a method and apparatus for pulverizing solid materials by wet pulverization.

［従来の技術］ 従来、セラミツクス、塗料、インク、鉱物、化
学用材料などの固体材料の微粉砕方法としては、
湿式粉砕による媒体撹拌微粉砕機などが利用され
ている。[Prior Art] Conventionally, methods for finely pulverizing solid materials such as ceramics, paints, inks, minerals, and chemical materials include:
A medium agitation pulverizer using wet pulverization is used.

媒体撹拌微粉砕機は、連続操作または回分操作
のもとで、粉砕容器内に充填されている細粒ボー
ルなどの粉砕媒体を撹拌部材の回動により運動さ
せ、一方、砕料はスラリー状に調整して、ポンプ
などをもちいて粉砕容器内へ供給され、運動して
いる粉砕媒体群の表面の間において圧力と摩擦力
の作用を受けて微粉砕される。 A medium-stirring pulverizer uses continuous or batch operation to move the pulverizing medium, such as fine balls, filled in a pulverizing container by rotating a stirring member, while turning the pulverized material into a slurry. After adjustment, the material is fed into a grinding container using a pump or the like, and is pulverized under the action of pressure and friction between the surfaces of the moving group of grinding media.

ここに、砕料とは粉砕操作のために用いる材料
を意味している。 Grinding material here means the material used for the grinding operation.

媒体撹拌微粉砕機の粉砕容器の形状としては、
主として円筒状や円錐状のものなどが用いられ、
かつ、垂直方向もしくは水平方向に配置して利用
されている。さらに撹拌部材の形状としては、円
板、棒、スパイラル状板、スクリユウなどの形状
を有し、中心軸に取付けて、中心軸の回動のもと
で撹拌部材は粉砕媒体が運動せられ、粉砕容器の
円周方向、軸方向、あるいは斜方向など多方向へ
の運動が行わせられている。 The shape of the grinding container of the medium agitation fine grinder is as follows:
Mainly cylindrical or conical shapes are used,
Moreover, it is used by arranging it vertically or horizontally. Further, the stirring member has a shape such as a disk, a rod, a spiral plate, a screw, etc., and is attached to a central shaft, and the stirring member moves the grinding media under the rotation of the central shaft. The crushing container is moved in multiple directions, such as circumferentially, axially, and obliquely.

媒体撹拌微粉砕機は、微粉砕の目的をはじめと
して、製品および砕料の性質に対応して、とく
に、数μm程度までに微粉砕を必要とする場合に
は、単数の媒体撹拌微粉砕機をもちいて回分的に
操作するか、或いは複数の媒体撹拌微粉砕機を直
列に配置して連続的に操作して、滞留時間を増大
させることにより微粉砕が行われていた。上記の
場合においては、微粉砕の進行にともない、スラ
リー状の砕料および粉砕品を粉砕媒体から分級機
などを用いて分離されたのち、次の媒体撹拌微粉
砕機に供給されることにより、順次、微粉砕が進
行されて、最終の媒体撹拌微粉砕機からスラリー
状の製品を排出されていた。（例えば、B.
Heinrick，Kreitner L.：Aufbereitungs−
Technik 11，（1981），619、など参照） また、垂直方向もしくは水平方向に配置した媒
体撹拌微粉砕機において、粉砕容器を複数の粉砕
室に区画して、それぞれの粉砕室内に充填された
粉砕媒体が撹拌部材によりそれぞれ運動せられ、
粉砕容器の一端から砕料を供給して、粉砕室内に
おいて、順次、微粉砕が進行されて、他端からス
ラリー状の製品が排出せられていた。（例えば、
特開昭59−147651号公報、特公昭59−46665号公
報など） ［発明が解決しようとする問題点］ しかしながら、上記従来の固体材料の微粉砕方
法および装置では、複数の粉砕室からなる媒体撹
拌微粉砕機をもちいても、中心軸の回転数が一定
であるために各粉砕室にもちいられる撹拌部材の
周速度が実質上同一となつてしまい、微粉砕の進
行に対応して、撹拌部材の周速度をはじめとする
微粉砕条件を適切に調整することができないとい
う問題があつた。 A single medium agitation pulverizer is used depending on the purpose of pulverization as well as the properties of the product and the pulverized material, especially when pulverization to a size of several μm is required. Fine pulverization has been carried out either by batchwise operation using a pulverizer, or by arranging a plurality of medium agitation pulverizers in series and operating them continuously to increase the residence time. In the above case, as the pulverization progresses, the slurry-like pulverized material and pulverized products are separated from the pulverizing media using a classifier, etc., and then supplied to the next medium-stirring pulverizer. Fine pulverization was progressed one after another, and a slurry-like product was discharged from the final medium agitation pulverizer. (For example, B.
Heinrick, Kreitner L.: Aufbereitungs−
(See Technik 11, (1981), 619, etc.) In addition, in a media agitation pulverizer arranged vertically or horizontally, the pulverizing container is divided into multiple pulverizing chambers, and the pulverizing material filled in each pulverizing chamber is the medium is moved by a stirring member, respectively;
Grinding material is supplied from one end of the pulverizing container, pulverization is progressed sequentially in the pulverizing chamber, and a slurry-like product is discharged from the other end. (for example,
[Problems to be Solved by the Invention] However, in the above-mentioned conventional method and apparatus for pulverizing solid materials, a medium consisting of a plurality of pulverizing chambers is used. Even if a stirring pulverizer is used, since the rotational speed of the central shaft is constant, the circumferential speed of the stirring member used in each pulverization chamber is virtually the same. There was a problem in that the pulverization conditions, including the circumferential speed of the members, could not be adjusted appropriately.

さらに、各粉砕室を区画する区画壁を粉砕媒体
を撹拌する撹拌部材の中心軸がつらぬいているた
め、媒体撹拌微粉砕機の運転に伴う撹拌部材や分
級機の消耗による交換に対して、中心軸から一体
となつて機外に引出して交換することは著しい困
難を伴うという問題があつた。 Furthermore, since the central axis of the stirring member that stirs the grinding media runs through the partition wall that divides each grinding chamber, it is possible to replace the stirring member or classifier due to wear and tear during operation of the medium-agitating fine grinder. There was a problem in that it was extremely difficult to pull the entire piece out of the machine from the shaft and replace it.

本発明はこのような従来の問題を解決するもの
であり、砕料が粉砕室に供給され、順次、移動が
行われて各粉砕室では微粉砕の進行に伴い、撹拌
部材の周速に対応した最適な微粉砕条件が得られ
るような粉砕手段をもちいて効率の良い微粉砕を
達成することができるとともに、消耗部材の交換
を容易となしうる優れた固体材料の微粉砕方法お
よび装置を提供するものである。 The present invention solves such conventional problems, and the crushed material is supplied to the crushing chamber, and is sequentially moved, so that as pulverization progresses in each crushing chamber, it corresponds to the circumferential speed of the stirring member. To provide an excellent method and device for pulverizing solid materials, which can achieve efficient pulverization using a pulverizing means that can obtain optimal pulverization conditions, and which can facilitate the replacement of consumable parts. It is something to do.

［問題点を解決するための手段］ 本発明は上記目的を達成するために、同心円状
に区画した複数の粉砕室内の粉砕媒体を中心軸に
より回動する複数の撹拌部材によりそれぞれ撹拌
させ、砕料を上昇流および下降流のもとで中央部
の粉砕室から外周部の粉砕室へ順次、移動させて
微粉砕を行うようにしたものであり、また、粉砕
容器を区画壁により同心円状の複数の粉砕室に区
画し、前記粉砕室には粉砕媒体をそれぞれ充填
し、中心軸には前記粉砕室に挿入する撹拌部材を
備えて中心軸を回動自在となし、砕料を上昇流お
よび下降流のもとで中央部の粉砕室から外周部の
粉砕室へ順次、移動させて微粉砕を行う通路を設
けるようにしたものである。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention agitates and pulverizes the pulverizing media in a plurality of concentrically partitioned pulverizing chambers using a plurality of stirring members rotating about a central axis. The material is finely pulverized by moving the material sequentially from the central pulverizing chamber to the outer periphery pulverizing chamber under an upward and downward flow. It is divided into a plurality of crushing chambers, each of the crushing chambers is filled with a crushing medium, and the central shaft is equipped with a stirring member inserted into the crushing chamber so that the central shaft can rotate freely, and the crushed material is caused to flow upwardly and A passage is provided in which the pulverizer is sequentially moved from the pulverizing chamber in the center to the pulverizing chambers in the outer periphery under a downward flow for fine pulverization.

［作用］ 本発明は上記のような構成により次のような作
用を有する。すなわち、砕料は中央部の粉砕室に
供給されて、撹拌部材の回動に伴う粉砕媒体の激
しい撹拌のもとで、スラリー状の砕料の上昇流に
おいて、局部的凝集状態を呈している砕料を液体
中に分散させるとともに粉砕媒体の運動にともな
う砕料の加圧ならびに摩擦によつて微粉砕が進行
する。そして粉砕室上端に備えた分級手段により
スラリー状の微粉砕品のみが下降流となつて移動
し、外周側に隣接した次の同心円状の粉砕室に移
動して上昇流のもとで撹拌部材の回動に伴う粉砕
媒体の激しい撹拌にもとづく微粉砕品の加圧なら
びに摩擦によつて微粉砕が進行する。このように
砕料は次々と外側の同心円状に区画された粉砕室
に供給され、最外周側の粉砕室では仕上微粉砕が
行われ上端の分級手段を通過して仕上微粉砕品の
みが製品として排出される。各粉砕室では微粉砕
の進行に伴い撹拌部材の周速に対応した微粉砕条
件が設定されることになるのであるが、特に砕料
に与えられる粉砕エネルギーを限定したりまた超
微粉砕品を得るために中央部より外周部に至る各
粉砕室に充填すべき粉砕媒体の平均径を粉砕の粉
砕粒度に合せて徐々に小さいものを充填する場合
には同心円状に配置された粉砕室の区画壁を中心
よりどれだけ離れた位置に設けるかにより粉砕室
に付与できる粉砕エネルギーを設定でき、砕料に
対し理想的な効率の良い粉砕状態を形成すること
ができる。[Function] The present invention has the following effects due to the above configuration. That is, the crushed material is supplied to the central crushing chamber, and under the intense stirring of the crushing media caused by the rotation of the stirring member, the slurry-like crushed material exhibits a locally agglomerated state in the upward flow. Fine pulverization progresses by dispersing the pulverized material in a liquid and by applying pressure and friction to the pulverized material as a result of the movement of the grinding media. Then, only the slurry-like finely pulverized product is moved in a downward flow by the classification means provided at the upper end of the grinding chamber, and is moved to the next concentric grinding chamber adjacent to the outer periphery, where it is stirred by an upward flow. Fine pulverization progresses due to the pressurization and friction of the pulverized product based on the vigorous stirring of the pulverizing media accompanying the rotation of the pulverizer. In this way, the crushed material is supplied one after another to the concentrically divided outer crushing chambers, where final fine crushing is performed in the outermost crushing chamber, and after passing through the classification means at the top, only the finished finely crushed products are produced. It is discharged as. As pulverization progresses in each pulverization chamber, pulverization conditions are set in accordance with the circumferential speed of the stirring member. When the average diameter of the grinding media to be filled in each grinding chamber from the center to the outer periphery gradually decreases according to the grinding particle size of the grinding, the grinding chambers are arranged concentrically. The crushing energy that can be applied to the crushing chamber can be set by determining how far away the wall is from the center, and it is possible to create an ideal and efficient crushing condition for the crushed material.

また運転に伴う撹拌部材、粉砕媒体、あるいは
分級手段の点検や消耗による交換に対しても粉砕
室区画壁および撹拌部材ともに同心円状に配置さ
れているため、粉砕室を下降させることで粉砕室
と撹拌部材を容易に分離、開放することができ短
時間に行うことが可能である。 In addition, in order to inspect or replace the stirring member, grinding media, or classification means due to wear and tear during operation, the grinding chamber partition wall and the stirring member are arranged concentrically, so the grinding chamber can be lowered and replaced. The stirring member can be easily separated and opened, and this can be done in a short time.

［実施例］ 以下、本発明の一実施例を図画について詳細に
のべる。[Example] Hereinafter, an example of the present invention will be described in detail with respect to drawings.

第１図は本発明の一実施例の構成をしめすもの
である。 FIG. 1 shows the configuration of an embodiment of the present invention.

第１図において、１０は中心軸をしめし、垂直
方向Ｖ−Ｖ線上に配置されており、中心軸１０に
は撹拌ロータ１４を設けて、図示も省略した駆動
装置をもちいてＶ−Ｖ線の周りに回動される。１
２は粉砕容器をしめし、円筒状を形成しており、
側板１２ａ、カバー１２ｃ、底板１２ｂよりなつ
ている。２８は二重壁からなる区画壁であつて、
Ｖ−Ｖ線を中心とする同心円状に粉砕容器１２の
底板１２ｂに回動することなく固定されている。
粉砕容器１２は区画壁２８により同心円状に第一
粉砕室４２および第二粉砕室２０とに区画され
る。 In FIG. 1, reference numeral 10 indicates a central axis, which is arranged on the vertical line V-V. A stirring rotor 14 is provided on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is provided on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is installed on the central axis 10, and a stirring rotor 14 is provided on the central axis 10. rotated around. 1
2 indicates a crushing container, which has a cylindrical shape;
It consists of a side plate 12a, a cover 12c, and a bottom plate 12b. 28 is a partition wall consisting of a double wall,
It is fixed without rotation to the bottom plate 12b of the crushing container 12 in a concentric circle centered on the line V-V.
The crushing container 12 is concentrically divided into a first crushing chamber 42 and a second crushing chamber 20 by a partition wall 28 .

第１図は撹拌ロータ１４が粉砕容器１２に挿入
されている状態を示している。第一粉砕室４２に
は、粉砕媒体４６が所定の比率をもつて充填され
ており、粉砕容器底板１２ｂに設けられた砕料入
口４０には粉砕媒体が入口に落下するのを防止す
るグレート４１を設けている。撹拌ロータ１４に
は垂直方向に第２図に示す第一粉砕室４２用の撹
拌部材３８を取付けており、撹拌部材３８には水
平方向に延びるアーム３８ａが所定長さで所定間
隔のもとに取付けられている。区画壁２８には上
端部に分級手段３４を、下端部には分級手段３６
をそれぞれ備えており、二重壁内には通路３５が
形成されている。 FIG. 1 shows a state in which the stirring rotor 14 is inserted into the crushing container 12. The first grinding chamber 42 is filled with grinding media 46 at a predetermined ratio, and the grinding material inlet 40 provided on the bottom plate 12b of the grinding container has a grating 41 that prevents the grinding media from falling into the inlet. has been established. A stirring member 38 for the first crushing chamber 42 shown in FIG. 2 is vertically attached to the stirring rotor 14, and the stirring member 38 has arms 38a extending in the horizontal direction having a predetermined length and a predetermined interval. installed. The partition wall 28 has a classification means 34 at its upper end and a classification means 36 at its lower end.
A passage 35 is formed within the double wall.

第二粉砕室２０には、粉砕媒体１８が所定の比
率をもつて充填されており、撹拌ロータ１４には
垂直方向に第３図に示す第二粉砕室２０用の撹拌
部材１６を取付け、撹拌部材１６には水平方向に
延びるピン１６ａが所定長さで所定間隔のもとに
取付けられている。第二粉砕室２０の外周部側壁
である粉砕容器側板１２ａの上部には分級手段５
０を備えて製品排出口となし、排出管５２が設け
られている。 The second grinding chamber 20 is filled with grinding media 18 at a predetermined ratio, and a stirring member 16 for the second grinding chamber 20 shown in FIG. Pins 16a extending horizontally are attached to the member 16 at predetermined lengths and at predetermined intervals. A classification means 5 is provided on the upper part of the crushing container side plate 12a, which is the outer peripheral side wall of the second crushing chamber 20.
0 as a product discharge port, and a discharge pipe 52 is provided.

粉砕容器カバー１２ｃには第一粉砕室４２、お
よび第二粉砕室２０への粉砕媒体供給口２４，２
２をそれぞれ取付けてあり、特に第一粉砕室４２
への粉砕媒体の充填を容易とするため撹拌ロータ
１４の部材であるフランジ１４ａには開口１５な
らびに誘導板１４ｃが設けられている。また底板
１２ｂには開口４８が取付けられ第二粉砕室２０
内の粉砕媒体１８を粉砕容器１２より排出させる
ために用いられる。 The crushing container cover 12c has a first crushing chamber 42 and a crushing medium supply port 24, 2 to the second crushing chamber 20.
2 are installed respectively, especially the first crushing chamber 42
The flange 14a, which is a member of the stirring rotor 14, is provided with an opening 15 and a guide plate 14c to facilitate filling of the grinding medium with the grinding medium. Further, an opening 48 is attached to the bottom plate 12b, and the second crushing chamber 20
It is used to discharge the grinding media 18 inside from the grinding container 12.

粉砕容器１２には、外周部にジヤケツト１３が
設けられ、冷却水入口１３ａより冷却水を供給
し、冷却水出口１３ｂより排出させて微粉砕に伴
い発熱する粉砕容器１２内の温度コントロールを
実施し得るようにしている。 The crushing container 12 is provided with a jacket 13 on its outer periphery, and cooling water is supplied from a cooling water inlet 13a and discharged from a cooling water outlet 13b to control the temperature inside the crushing container 12, which generates heat due to pulverization. I'm trying to get it.

中心軸１０の回動にともない、撹拌部材３８，
１６が回動してそれぞれ対応している第一粉砕
室、第二粉砕室内の粉砕媒体４６，１８はそれぞ
れ激しく撹拌されるが、各粉砕室の粉砕媒体平均
径は第一粉砕室，第二粉砕室と順次縮小するよう
に充填されている。前記撹拌部材３８，１６の周
速度は各粉砕室においてそれぞれ同一とならない
ため撹拌部材の形状、数量、間隙などを選定し、
最適な微粉砕条件が得られるように設定されてい
る。 As the central shaft 10 rotates, the stirring member 38,
16 rotates to violently stir the grinding media 46 and 18 in the corresponding first and second grinding chambers, respectively. The crushing chamber is filled in such a way that it gradually shrinks. Since the peripheral speeds of the stirring members 38 and 16 are not the same in each grinding chamber, the shape, quantity, gap, etc. of the stirring members are selected,
Settings are made to obtain optimal pulverization conditions.

次に上記実施例の動作を説明する。 Next, the operation of the above embodiment will be explained.

砕料は入口４０から第一粉砕室４２に入り、粉
砕媒体４６の激しい運動の中でスラリーとして上
昇する過程において粉砕媒体の加圧ならびに摩擦
の作用によつて液体中への分散が促進されるとと
もに、微粉砕が順次進行する。粉砕媒体４６の平
均径に見合つた粉砕粒径まで微粉砕が進むように
設定された時間まで第一粉砕室に滞留した砕料は
分級手段３４を通過して通路３５を下降流にて移
動したのち分級手段３６を通過して第二粉砕室２
０に入る。 The crushed material enters the first crushing chamber 42 from the inlet 40, and in the process of rising as a slurry under the intense movement of the crushing media 46, its dispersion into the liquid is promoted by the pressurization and friction of the crushing media. At the same time, pulverization progresses sequentially. The crushed material remained in the first crushing chamber until the time set so that the fine crushing progressed to a crushed particle size commensurate with the average diameter of the crushing medium 46, passed through the classification means 34, and moved in a downward flow through the passage 35. After that, it passes through the classification means 36 and enters the second crushing chamber 2.
Enters 0.

第二粉砕室２０では第一粉砕室４２に充填され
た粉砕媒体４６よりもさらに小さな平均径をもつ
た粉砕媒体４６のもとで第一粉砕室４２の周速よ
りも早い周速にて、かつ、強い遠心力場のもとに
加圧ならびに摩擦の作用によつて液体中への分散
がさらに促進され、微粉砕が著しく進行して、所
謂、仕上微粉砕が行われる。第二粉砕室２０内を
上昇し、仕上微粉砕ならびに十分な分散が行われ
た後のスラリー状の仕上微粉砕品は分級手段５０
を通過して排出管５２より粉砕容器１２外に排出
される。 In the second grinding chamber 20, the grinding medium 46 having an average diameter smaller than that of the grinding medium 46 filled in the first grinding chamber 42 is used at a circumferential speed faster than that of the first grinding chamber 42. In addition, dispersion into the liquid is further promoted by pressure and friction under a strong centrifugal force field, and pulverization progresses significantly, resulting in so-called final pulverization. After ascending in the second crushing chamber 20 and undergoing final fine pulverization and sufficient dispersion, the final finely pulverized product in the form of slurry is passed through the classification means 50.
It passes through and is discharged to the outside of the crushing container 12 from the discharge pipe 52.

また、分級手段３４，３６および５０において
は、粉砕媒体４６および１８の運動にともなつ
て、その表面が常に更新されるために、スラリー
状の微粉砕品の停滞が発生されることがなく、分
級作用を改善することができる。さらに、粉砕媒
体、撹拌部材、および分級手段等が損耗し、交換
を必要とする場合には粉砕容器カバー１２ｃを取
りはずして粉砕容器１２を下降させることにより
各粉砕室を開放することができるため、交換作業
が容易となり、短時間で交換を行うことができ
る。 Furthermore, in the classification means 34, 36, and 50, the surfaces of the grinding media 46 and 18 are constantly updated as the grinding media 46 and 18 move, so that stagnation of the finely ground products in the form of slurry does not occur. The classification effect can be improved. Furthermore, if the grinding media, stirring member, classification means, etc. are worn out and need to be replaced, each grinding chamber can be opened by removing the grinding container cover 12c and lowering the grinding container 12. Replacement work becomes easy and can be done in a short time.

第２図は撹拌部材３８をしめし、アーム３８ａ
が放射状に所定間隔のもとに取付けられている。 FIG. 2 shows the stirring member 38 and the arm 38a.
are installed radially at predetermined intervals.

第３図は撹拌部材１６をしめし、ピン１６ａが
放射状に所定長さで所定間隔のもとに取付けられ
ている。 FIG. 3 shows the stirring member 16, in which pins 16a are radially attached at predetermined lengths and at predetermined intervals.

なお、本発明の実施態様は上記実施例に限るも
のでないことは勿論であり、粉砕容器、撹拌部材
および分級手段などについて種々の態様が採用可
能である。 It should be noted that the embodiments of the present invention are of course not limited to the above embodiments, and various embodiments can be adopted for the crushing container, the stirring member, the classifying means, and the like.

［発明の効果］ 本発明は上記実施例より明らかなように、砕料
が粉砕室を順次移動すとともに微粉砕が進行さ
れ、各粉砕室では微粉砕の進行に伴い、撹拌部材
の周速の差異に対応した最適な微粉砕条件が得ら
れるような粉砕手段をもちいて微粉砕が行われる
ため、微粉砕性能を著しく向上させることがで
き、かつ、消耗部材の交換が容易となり、固体材
料の微粉砕が達成されうるなどその効果は多大で
ある。[Effects of the Invention] As is clear from the above embodiments, in the present invention, pulverization progresses as the crushed material sequentially moves through the pulverization chambers, and as the pulverization progresses in each pulverization chamber, the circumferential speed of the stirring member increases. Since pulverization is carried out using a pulverization means that can obtain the optimum pulverization conditions corresponding to the differences, pulverization performance can be significantly improved, and consumable parts can be easily replaced, making it possible to improve the quality of solid materials. The effects are great, such as the ability to achieve fine pulverization.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例における固体材料の
微粉砕方法および装置の説明図、第２図、および
第３図はそれぞれ同方法および装置の撹拌部材の
説明図である。 １０……中心軸、２０，４２……粉砕室、１
８，４６……粉砕媒体。 FIG. 1 is an explanatory diagram of a method and apparatus for pulverizing a solid material in one embodiment of the present invention, and FIGS. 2 and 3 are explanatory diagrams of a stirring member of the same method and apparatus, respectively. 10... Central axis, 20, 42... Grinding chamber, 1
8,46... Grinding media.

Claims (1)

【特許請求の範囲】 １ 同心円状に区画した複数の粉砕室内の粉砕媒
体を中心軸により回動する複数の撹拌部材により
それぞれ撹拌させ、砕料を上昇流および下降流の
もとで中央部の粉砕室から外周部の粉砕室へ順
次、移動させて微粉砕を行うことを特徴とする固
体材料の微粉砕方法。 ２ 粉砕容器を区画壁により同心円状の複数の粉
砕室に区画し、前記粉砕室には粉砕媒体をそれぞ
れ充填し、中心軸には前記粉砕室に挿入する撹拌
部材を備えて中心軸を回動自在となし、砕料を上
昇流および下降流のもとで中央部の粉砕室から外
周部の粉砕室へ順次、移動させて微粉砕を行う通
路を設けたことを特徴とする固体材料の微粉砕装
置。[Claims] 1. Grinding media in a plurality of concentrically divided grinding chambers are agitated by a plurality of stirring members rotating around a central shaft, and the pulverized material is stirred in the center under an upward flow and a downward flow. A method for finely pulverizing a solid material, which is characterized by pulverizing a solid material by sequentially moving the material from a pulverizing chamber to a pulverizing chamber on the outer periphery. 2. A crushing container is divided into a plurality of concentric crushing chambers by partition walls, each of the crushing chambers is filled with a crushing medium, and a central shaft is provided with a stirring member to be inserted into the crushing chamber, and the central shaft is rotated. A method for finely pulverizing solid materials characterized by having a passageway for pulverizing the material by sequentially moving the material from a central pulverizing chamber to an outer periphery pulverizing chamber under upward and downward flow. Grinding equipment.