JPS647822B2 - - Google Patents
Info
- Publication number
- JPS647822B2 JPS647822B2 JP16163383A JP16163383A JPS647822B2 JP S647822 B2 JPS647822 B2 JP S647822B2 JP 16163383 A JP16163383 A JP 16163383A JP 16163383 A JP16163383 A JP 16163383A JP S647822 B2 JPS647822 B2 JP S647822B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- balls
- slurry
- rotating
- fixed tank
- 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.)
- Expired
Links
- 238000000227 grinding Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 description 32
- 239000002245 particle Substances 0.000 description 27
- 239000002994 raw material Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000010298 pulverizing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Description
【発明の詳細な説明】 本発明は、湿式微粉砕機に関する。[Detailed description of the invention] The present invention relates to a wet pulverizer.
湿式微粉砕機としては従来より各種の型式のも
のがあるが、その中でも第１図に示す媒体撹拌型
粉砕機が粉砕能率が高いとして広く多用されてい
る。 There have been various types of wet pulverizers, and among them, the medium agitation type pulverizer shown in FIG. 1 is widely used because of its high pulverization efficiency.
第１図に示される媒体撹拌型粉砕機１は、固定
槽２内に一定間隙３を存して中空回転軸４に取付
けた回転胴５を嵌入して成るもので、高速回転し
ている中空回転軸４内に水と被粉砕物粒子とを一
定割合に混合したスラリーと粉砕媒体であるボー
ルを投入し、下端開口４ａより固定槽２内に入
れ、高速回転する回転胴５の下面の羽根６のポン
プ作用によりスラリーとボールを間隙３に送り込
み、ここで高速回転する回転胴５により撹拌して
被粉砕部粒子を微粉砕し乍ら矢印の如く間隙３を
上昇させ、上端外周の排出口７より固定槽２外に
スラリー及びボールを排出するもので、この排出
されたスラリーとボールはその後分離され、スラ
リーは図示せぬとスラリータンクに貯留され、ボ
ールは水洗、水切り後再び中空回転軸４内に新規
な原料であるスラリーと共に投入される。 The medium agitation type crusher 1 shown in FIG. 1 is constructed by fitting a rotary cylinder 5 attached to a hollow rotating shaft 4 with a fixed gap 3 in a fixed tank 2. A slurry made by mixing water and particles of the material to be crushed at a certain ratio and balls as a grinding medium are put into the rotating shaft 4, and the balls are put into the fixed tank 2 through the lower end opening 4a, and the blades on the lower surface of the rotating drum 5 rotate at high speed. The slurry and balls are fed into the gap 3 by the pump action of 6, where they are agitated by the rotating drum 5 rotating at high speed to finely pulverize the particles in the pulverized part, while raising the gap 3 as shown by the arrow and passing through the discharge port on the outer periphery of the upper end. The slurry and balls are discharged outside the fixed tank 2 from 7. The discharged slurry and balls are then separated, and the slurry is stored in a slurry tank (not shown). After the balls are washed and drained, they are returned to the hollow rotating shaft. 4 together with slurry, which is a new raw material.
ところで、斯かる媒体撹拌型粉砕機１では、粉
砕媒体であるボールの動きが鈍く、相対運動が小
さいので、スラリー中の粒子との摩摺が不充分
で、粉砕効率が低いものである。また前記媒体撹
拌型粉砕機１では固定槽２内に於いてスラリー及
びボールの循環回路が明確に確保されていないの
で、スラリー中の被粉砕物粒子の微粉砕の進行が
固定槽２内の部位によつて差が生じる。その結
果、製品スラリー中の粒子に飛び込みが生じ、し
かも粒子の粒度幅が広くなるものである。この為
機外に循環回路を設ける必要が生じ、それの付帯
設備と運転に多額の費用を要するようになる。 By the way, in such a media stirring type pulverizer 1, the movement of the balls as the pulverizing medium is slow and the relative motion is small, so the friction with the particles in the slurry is insufficient and the pulverizing efficiency is low. In addition, in the medium stirring type crusher 1, a circulation circuit for the slurry and balls is not clearly ensured in the fixed tank 2, so that the progress of pulverization of the particles of the material to be crushed in the slurry is limited to the portions in the fixed tank 2. There is a difference depending on As a result, the particles in the product slurry are dispersed, and the particle size range of the particles is widened. For this reason, it becomes necessary to provide a circulation circuit outside the machine, which requires a large amount of expense for its ancillary equipment and operation.
本発明は、斯かる問題を解消すべくなされたも
のであり、製品スラリー中の粒子の粒度幅を狭く
できると共に、粉砕媒体であるボールの相対運動
を大きくできて粉砕効率を向上でき、さらには処
理量の増大を図ることのできる湿式微粉砕機を提
供することを目的とするものである。 The present invention was made to solve such problems, and it is possible to narrow the particle size range of particles in the product slurry, increase the relative movement of the balls that are the grinding medium, and improve the grinding efficiency. The object of the present invention is to provide a wet pulverizer that can increase throughput.
以下本発明による湿式微粉砕機の一実施例を第
２図乃至第４図によつて説明すると、１０は架台
１１上に支持された固定槽で、その下半部内周面
に母線に沿つた多数の凸部１２が設られて凹凸面
が形成され、下端部の接線方向に排出口１３が設
けられ、その基端にメツシユ１３ａが張設され、
先端にバルブ１が設けられている。１５は固定槽
１０内の下半部に一定の間隙１６を存して嵌装さ
れた回転槽で、軸受１７，１８によつて架台１１
に回転可能に支持され固定槽１０の底板を貫通し
た垂直回転軸１９の上端に支持されている。この
回転槽１５の外周面には母線に沿つて多数の凸部
２０が設けられて凹凸面が形成され、内周面２１
が円錐状に形成されて周壁が中空状に成されてい
る。またこの回転槽１５の下端部外周に等角度間
隙に複数の本例では４個の開口２２が設けられ、
この開口２２の内側に回転槽１５の回転によりポ
ンプ作用をするインペラー２３が設けられてお
り、回転槽１５の底板２４の下面には撹拌羽根２
５が複数枚、本例では４枚設けられている。２６
は前記固定槽１０内の上部空間、２７は固定槽１
０の上端に設けられた上部ケーシングで、中央に
粉砕媒体ならびに水と一定割合に被粉砕物粒子が
混合された原料スラリーを供給する投入口２８が
設けられ、その側方にガス通路２９が設けられて
いる。前記固定槽１０と回転槽１５内には粉砕媒
体としてスチール又はセラミツクの小径（約0.5
〜２mm程度）のボールが予め前記投入口２８より
投入充填されている。３０は垂直回転軸１９の下
端に固着されたプーリ、３１は駆動ベルトであ
り、この駆動ベルト３１は電動機の回転軸上のプ
ーリ（図示省略）と前記プーリ３０に掛け渡され
ている。 An embodiment of the wet type pulverizer according to the present invention will be described below with reference to FIGS. 2 to 4. Reference numeral 10 denotes a fixed tank supported on a pedestal 11. A large number of convex parts 12 are provided to form an uneven surface, a discharge port 13 is provided in the tangential direction of the lower end, and a mesh 13a is stretched over the base end of the discharge port 13.
A valve 1 is provided at the tip. Reference numeral 15 denotes a rotating tank that is fitted into the lower half of the fixed tank 10 with a certain gap 16 therebetween.
It is rotatably supported by the upper end of a vertical rotating shaft 19 that passes through the bottom plate of the fixed tank 10. A large number of convex portions 20 are provided along the generatrix on the outer circumferential surface of this rotating tank 15 to form an uneven surface, and the inner circumferential surface 21
is formed into a conical shape, and the peripheral wall is hollow. Further, a plurality of openings 22, four in this example, are provided at equal angular intervals on the outer periphery of the lower end of the rotating tank 15.
An impeller 23 is provided inside this opening 22 to perform a pumping action by the rotation of the rotating tank 15, and stirring blades 2 are provided on the lower surface of the bottom plate 24 of the rotating tank 15.
A plurality of number 5s, four in this example, are provided. 26
27 is the upper space in the fixed tank 10, and 27 is the fixed tank 1.
In the upper casing provided at the upper end of 0, an input port 28 is provided in the center for supplying a raw material slurry in which grinding media and water are mixed with particles of the material to be ground at a certain ratio, and a gas passage 29 is provided on the side thereof. It is being In the fixed tank 10 and the rotating tank 15, a small diameter steel or ceramic material (approximately 0.5
Balls (approximately 2 mm) are charged in advance from the input port 28. 30 is a pulley fixed to the lower end of the vertical rotating shaft 19, and 31 is a drive belt, which is stretched around the pulley 30 and a pulley (not shown) on the rotating shaft of the electric motor.
次に上述の如く構成された本発明の湿式微粉砕
機の作用について説明する。固定槽１０の下端部
に設けられた排出口１３の先端のバルブ１４を閉
じ、投入口２８より水と一定割合に被粉砕物粒子
が混合された原料スラリーを、回転槽１５の上端
より若干上になる位置まで供給した後、図示せぬ
電動機を駆動し、回転槽１５を高速回転すると、
該回転槽１５内の粉砕媒体であるボールと原料ス
ラリーは遠心作用により円錐状の内周面２１に沿
つた下向き旋回流となつて下降し、下端部外周の
開口２２からポンプ作用をするインペラー２３に
より回転槽１５と固定槽１０との間の環状の間隙
１６内に入る。この間隙１６内に入つたボールと
原料スラリーは高速回転している回転槽１５の回
転力によつて上向き旋回流となつて上昇し、この
間に原料スラリー中の被粉砕物粒子は、ボール相
互、ボールと回転槽１５の外周の凹凸面、更には
ボールと固定槽１０の内面の凹凸面との間に於け
る衝突、滑り等によるボールの活溌な相対運動に
より充分摩砕されて効率良ふ微粉砕される。そし
てボール原料スラリーは環状の間隙１６内から出
て固定槽１０の上部空間２６に達し、ここから再
び回転槽１５内に入る。以後、前記の回転槽１５
→開口２２→環状間隙１６→上部空間２６→回転
槽１５の循環が一定時間繰返されて、原料スラリ
ー中の被粉砕物粒子が環状間隙１６の粉砕ゾーン
を通過する度毎に効率良く微粉砕されて、所定の
粒度となる。そしてこの製品スラリーは、排出口
１３の先端のバルブ１４を開けて、図示せぬ輸送
管を通してスラリータンクに貯留し、ボールは排
出口１３の基端のメツシユ１３ａにて機内にとど
める。 Next, the operation of the wet pulverizer of the present invention constructed as described above will be explained. The valve 14 at the tip of the discharge port 13 provided at the lower end of the fixed tank 10 is closed, and the raw material slurry, which is a mixture of water and particles to be crushed at a certain ratio, is poured from the input port 28 slightly above the upper end of the rotating tank 15. After supplying to the position where
The balls as the grinding medium and the raw material slurry in the rotating tank 15 descend as a downward swirling flow along the conical inner circumferential surface 21 due to centrifugal action, and an impeller 23 acts as a pump through an opening 22 on the outer periphery of the lower end. It enters the annular gap 16 between the rotating tank 15 and the stationary tank 10. The balls and raw material slurry that have entered this gap 16 rise in an upward swirling flow due to the rotational force of the rotating tank 15 that is rotating at high speed, and during this time, the particles of the material to be crushed in the raw material slurry are separated from each other by the balls. The active relative motion of the balls due to collisions, slips, etc. between the balls and the uneven surface on the outer periphery of the rotating tank 15, as well as between the balls and the uneven surface on the inner surface of the stationary tank 10, sufficiently grinds the particles with high efficiency. Shattered. Then, the ball raw material slurry exits from the annular gap 16 and reaches the upper space 26 of the fixed tank 10, from where it enters the rotating tank 15 again. Thereafter, the above-mentioned rotating tank 15
The circulation of → opening 22 → annular gap 16 → upper space 26 → rotary tank 15 is repeated for a certain period of time, and the particles of the material to be crushed in the raw material slurry are efficiently pulverized each time they pass through the crushing zone of the annular gap 16. As a result, a predetermined particle size is achieved. The product slurry is stored in a slurry tank through a transport pipe (not shown) by opening a valve 14 at the tip of the discharge port 13, and the balls are retained in the machine by a mesh 13a at the base end of the discharge port 13.
上記のボールとスラリーの循環に於いて、固定
槽１０の槽底に沈降するボールと被粉砕物粒子
は、固定槽１５と一体の高速回転する撹拌羽根２
５により撹拌され、皿形の槽底面に沿つて外向き
に旋回しながら環状間隙１６内に入り、被粉砕物
粒子が前記と同様に微粉砕作用を受ける。 In the above-mentioned circulation of the balls and slurry, the balls and particles to be crushed that settle to the bottom of the fixed tank 10 are removed by the stirring blades 2 which rotate at high speed and which are integrated with the fixed tank 15.
5 and enters the annular gap 16 while rotating outward along the bottom surface of the dish-shaped tank, and the particles of the material to be ground are subjected to the same pulverizing action as described above.
尚、ボールとスラリーの循環に於いて、環状間
隙１６内から出たボールとスラリーを積極的に且
つ円滑に回転槽１５内に入れる為に、第５図及び
第６図に示す如く固定槽１０の上部内周面の対向
位置に、回転槽１５内に向けて断面「形の円弧状
のガイド３２を設けると、ボールとスラリーの循
環が一層良好に行われる。 In order to positively and smoothly introduce the balls and slurry coming out of the annular gap 16 into the rotating tank 15 during the circulation of the balls and slurry, a fixed tank 10 is installed as shown in FIGS. 5 and 6. If a guide 32 having an arc-shaped cross section is provided facing the inner circumferential surface of the upper portion of the rotary tank 15, the balls and slurry can be circulated more efficiently.
以上の如く本発明の湿式微粉砕機は、粉砕媒体
であるボール及び水と一定割合に被粉砕物粒子を
混合した原料スラリーを、円錐状内周面の回転槽
→回転槽の下端部開口→固定槽の下半部内周面の
凹凸面と回転槽の外周面の凹凸面との間の環状間
隙→固定槽の上部空間→回転槽の順に一定時間繰
返し循環させるので、粉砕媒体であるボールには
環状間隙内でボール相互、ボールと回転槽の外周
の凹凸面、更にはボールと固定槽の内周面の凹凸
面との間に於ける衝突、滑り等により活溌に相対
運動する。その結果、原料スラリー中の被粉砕物
粒子は前記環状間隙の粉砕ゾーンを通過する度毎
に効率良く微粉砕されて、所定の粒度となる。ま
た循環する原料スラリー中の全ての被粉砕物粒子
は、前記環状間隙の粉砕ゾーンを同一回数通過す
るので、製品スラリー中の粒子に飛び込みが無
く、しかも粒度幅の狭いシヤープな粒度分布を持
つた所要粒度の粒子を含む製品スラリーを得るこ
とができる。さらに本発明の湿式微粉砕機は、そ
の運転時間、回転槽の回転数等を調整することに
より、容易に製品スラリー中の粒子の粒度を調整
することができる。また本発明の湿式微粉砕機
は、機内の全ての空間を利用してボールとスラリ
ーの自己循環路を形成した型式であるから、従来
の媒体撹拌型粉砕機のように機外に循環回路を設
ける必要がなく、その付帯設備の費用ならびに運
転費は解消され、保守、点検、整備等は本機のみ
で良いので至つて簡易で、多くの労力と時間を削
減できる等の数多くの優れた効果がある。 As described above, the wet type pulverizer of the present invention transfers a raw material slurry, which is a mixture of balls and water as a grinding medium and particles of the ground material at a certain ratio, from a rotating tank with a conical inner peripheral surface to an opening at the lower end of the rotating tank. The circular gap between the uneven surface on the inner peripheral surface of the lower half of the fixed tank and the uneven surface on the outer peripheral surface of the rotating tank is circulated repeatedly for a certain period of time in the order of → the upper space of the fixed tank → the rotating tank, so that the balls that are the grinding medium The balls actively move relative to each other within the annular gap due to collisions, slips, etc. between the balls, the balls and the uneven surface on the outer circumference of the rotating tank, and further between the balls and the uneven surface on the inner circumferential surface of the fixed tank. As a result, each time the particles of the material to be ground in the raw material slurry pass through the grinding zone of the annular gap, they are efficiently pulverized to a predetermined particle size. In addition, since all the particles of the material to be crushed in the circulating raw material slurry pass through the crushing zone of the annular gap the same number of times, there is no scattering of particles in the product slurry, and the particle size distribution is sharp with a narrow particle size width. A product slurry containing particles of the desired size can be obtained. Furthermore, the wet pulverizer of the present invention allows the particle size of particles in the product slurry to be easily adjusted by adjusting the operating time, the rotation speed of the rotary tank, and the like. In addition, the wet-type pulverizer of the present invention is of a type that uses all the space inside the machine to form a self-circulating path for the balls and slurry, so unlike conventional media agitation type pulverizers, a circulation circuit is provided outside the machine. There is no need to install it, the cost of associated equipment and operating costs are eliminated, and maintenance, inspection, maintenance, etc. are only required with this machine, making it extremely simple, and has many excellent effects such as saving a lot of labor and time. There is.
第１図は従来の媒体撹拌型微粉砕機を示す概略
断面図、第２図は本発明の湿式微粉砕機の一実施
例を示す縦断面図、第３図は第２図のＡ―Ａ線断
面矢視図、第４図は第２図のＢ―Ｂ線断面矢視
図、第５図は本発明の湿式微粉砕機の他の実施例
の要部縦断面図、第６図は第５図のＣ―Ｃ線断面
矢視図である。
１０……固定槽、１２……凸部、１３……排出
口、１３ａ……メツシユ、１５……回転槽、１６
……間隙、１９……垂直回転軸、２０……凸部、
２２……開口、２３……インペラー、２４……底
板、２５……撹拌羽根、２７……上部ケーシン
グ、２８……投入口。
Fig. 1 is a schematic sectional view showing a conventional medium stirring type pulverizer, Fig. 2 is a longitudinal sectional view showing an embodiment of the wet pulverizer of the present invention, and Fig. 3 is an A-A in Fig. 2. 4 is a cross-sectional view taken along line B--B in FIG. 2, FIG. 5 is a vertical cross-sectional view of main parts of another embodiment of the wet pulverizer of the present invention, and FIG. 5 is a cross-sectional view taken along line CC in FIG. 5; FIG. 10... fixed tank, 12... convex part, 13... discharge port, 13a... mesh, 15... rotary tank, 16
... Gap, 19 ... Vertical rotation axis, 20 ... Convex part,
22... Opening, 23... Impeller, 24... Bottom plate, 25... Stirring blade, 27... Upper casing, 28... Inlet.
Claims (1)
有し下端部の接線方向にメツシユを備えた排出口
を有する固定槽と、垂直回転軸の上端に支持され
て前記固定槽内の下半部に一定間隙を存して嵌装
され外周面に母線に沿つて多数の凸部を有し内周
面が円錐状に形成されその下端部に等角度間隔に
開口が設けられ且つ該開口の内側にインペラーが
設けられ底板下面には撹拌羽根が設けられた回転
槽と、前記固定槽と回転槽内に収容された粉砕媒
体と、前記固定槽の上端に設けられ投入口を有す
る上部ケーシングとより成る湿式微粉砕機。1. A fixed tank having a plurality of convex portions along the generatrix line in the lower half of the inner circumferential surface and a discharge port with a mesh in the tangential direction of the lower end, and the fixed tank supported by the upper end of the vertical rotating shaft. It is fitted with a certain gap in the lower half of the inside, has a large number of convex parts along the generatrix line on the outer peripheral surface, has a conical inner peripheral surface, and has openings provided at equal angular intervals at the lower end thereof. A rotating tank having an impeller provided inside the opening and a stirring blade provided on the lower surface of the bottom plate, a grinding medium contained in the fixed tank and the rotating tank, and an input port provided at the upper end of the fixed tank. A wet pulverizer consisting of an upper casing and a pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16163383A JPS6054741A (en) | 1983-09-02 | 1983-09-02 | Wet type pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16163383A JPS6054741A (en) | 1983-09-02 | 1983-09-02 | Wet type pulverizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054741A JPS6054741A (en) | 1985-03-29 |
| JPS647822B2 true JPS647822B2 (en) | 1989-02-10 |
Family
ID=15738891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16163383A Granted JPS6054741A (en) | 1983-09-02 | 1983-09-02 | Wet type pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0313816U (en) * | 1989-06-28 | 1991-02-13 |
-
1983
- 1983-09-02 JP JP16163383A patent/JPS6054741A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0313816U (en) * | 1989-06-28 | 1991-02-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6054741A (en) | 1985-03-29 |
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