JP3521192B2 - Continuous granulator and continuous granulation method - Google Patents
Continuous granulator and continuous granulation methodInfo
- Publication number
- JP3521192B2 JP3521192B2 JP2001111663A JP2001111663A JP3521192B2 JP 3521192 B2 JP3521192 B2 JP 3521192B2 JP 2001111663 A JP2001111663 A JP 2001111663A JP 2001111663 A JP2001111663 A JP 2001111663A JP 3521192 B2 JP3521192 B2 JP 3521192B2
- Authority
- JP
- Japan
- Prior art keywords
- granulation chamber
- cylindrical
- chamber
- powder
- side wall
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Glanulating (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Fertilizers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、円筒形造粒室内の底
壁に設けた底壁面に対して水平に回転する回転羽根を用
いて粉体を造粒（粒状化）する連続式造粒機に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous granulation method in which powder is granulated (granulated) by using a rotary blade that rotates horizontally with respect to a bottom wall provided in a bottom wall of a cylindrical granulation chamber. It is about machines.
【０００２】[0002]
【従来技術】撹拌型造粒機は、一般に円筒形造粒室の底
壁面が水平になるように設置されている。そして、この
円筒形造粒室の底部に、その底壁面に対して水平に回転
する回転翼が設けられており、この回転翼を水平に回転
させることによって、投入される粉体とバインダ−に旋
回運動を与えながら撹拌・混合して造粒するようにして
いる。この一例として特許第２６３６０３６号公報に記
載されたものがある。このものは、洗剤粉粒物を連続的
に造粒するもので、図４に示すようにこの造粒機は、底
部の底壁面２０が水平になるように設けられた円筒形造
粒室２１とその円筒形造粒室２１の底壁に装備した水平
に回転する撹拌羽根２２と側壁２３に装備した解砕羽根
２４、すなわち、過度に成長して粗大化した粒子（具体
的には洗剤の粒子）を解砕するための、垂直方向に回転
する解砕羽根２４を設けたものである。そして、この円
筒形造粒室２１の側壁上部には、蓋２５が設けられてお
り、この蓋２５には、粒状化させるための粉体（具体的
には洗剤粉粒物）とバインダ−を造粒室内にそれぞれ別
々に投入するための投入口２６、２７が設けられてい
る。また、円筒形造粒室２１の底部には大きく成長し過
ぎて製品にならない洗剤粒子を円筒形造粒室２１から排
出する排出口２８が設けられており、円筒形造粒室２１
の側壁２３には、過大粒子となった造粒粒子を排出する
排出口２９が設けられている。そして、この円筒形造粒
室２１に投入された洗剤粉粒物は、撹拌羽根２２の回転
運動によってバインダ−と撹拌、混合されながら、側壁
２３に衝突し跳ね返され、上方へ押し上げられて反転す
るというこの運動を繰り返し行われながら、結合剤で結
合されて造粒されるものである。ところで、以上のとお
りの円筒形造粒室２１を水平に設置した造粒機（図４参
照）では、この造粒機で洗剤粉粒物を造粒すると同じよ
うに肥料や飼料などの粉体を造粒した場合、投入される
粉体やバインダ−は、円筒形造粒室２１の下部に直接投
入されることはなく、それら粉体やバインダ−は造粒物
表層に落ち、このため、造粒物に混入してしまい、その
結果、円筒形造粒室内の造粒物が、新たに投入された粉
体とバインダ−が混じりあったままで、上記排出口２９
から排出されることになる。したがって、排出口２９か
ら排出された造粒物は、粒度分布〔図３の粒度分布線
（Ｂ）参照〕が非常に広く、そのまま利用することがで
きないから、粒子径を揃えるための篩などの設備を別に
設けて、別途、粒子を揃える作業工程が必要になってく
る。そのために設備費や人件費などのコストアップにつ
ながり、さらには、粉体やバインダ−の新たな投入を一
時中断したり、投入量を減らすなどして、円筒状造粒室
内での滞留時間を長くせざるを得ず、そのため、生産効
率が低下すると言う問題があった。2. Description of the Related Art Agitation type granulators are generally installed so that the bottom wall surface of a cylindrical granulation chamber is horizontal. The bottom of the cylindrical granulation chamber is provided with a rotary blade that rotates horizontally with respect to the bottom wall surface of the cylindrical granulation chamber. Granulation is performed by stirring and mixing while giving a swirling motion. An example of this is disclosed in Japanese Patent No. 2636036. This is for continuously granulating detergent powder granules. As shown in FIG. 4, this granulator has a cylindrical granulation chamber 21 provided so that the bottom wall surface 20 of the bottom is horizontal. And a horizontally rotating stirring blade 22 provided on the bottom wall of the cylindrical granulation chamber 21 and a crushing blade 24 provided on the side wall 23, that is, excessively grown and coarse particles (specifically, detergent particles A crushing blade 24 that rotates in the vertical direction is provided for crushing particles. A lid 25 is provided on the upper side wall of the cylindrical granulation chamber 21, and the lid 25 is provided with powder (specifically, detergent powder granules) for granulation and a binder. Charge ports 26 and 27 are provided to charge the granulation chamber separately. Further, at the bottom of the cylindrical granulation chamber 21, there is provided a discharge port 28 for discharging the detergent particles, which have grown too much to become a product, from the cylindrical granulation chamber 21.
The side wall 23 is provided with a discharge port 29 for discharging the granulated particles which have become excessively large particles. Then, the detergent powder granules charged into the cylindrical granulation chamber 21 are agitated and mixed with the binder by the rotational movement of the agitation blade 22, collide against the side wall 23 and bounce off, and are pushed up and inverted. While repeating this movement, the particles are bound with a binder and granulated. By the way, in the granulator (see FIG. 4) in which the cylindrical granulation chamber 21 is horizontally installed as described above, powder of fertilizer, feed or the like is produced in the same manner as granulating detergent powder granules with this granulator. When granulated, the powder and binder to be charged are not directly charged to the lower part of the cylindrical granulation chamber 21, and the powder and binder fall to the surface layer of the granulated product. As a result, the granules are mixed in the granulation product, and as a result, the granulation product in the cylindrical granulation chamber remains mixed with the newly added powder and the binder, and the discharge port 29
Will be discharged from. Therefore, the granulated product discharged from the discharge port 29 has a very wide particle size distribution [see the particle size distribution line (B) in FIG. 3] and cannot be used as it is. It is necessary to install a separate equipment and separately prepare the particles. This leads to an increase in costs such as equipment costs and labor costs.Furthermore, by temporarily interrupting the addition of new powder or binder or reducing the amount of input, the residence time in the cylindrical granulation chamber can be reduced. There was a problem that production efficiency declined because it had to be long.
【０００３】[0003]
【解決しようとする課題】そこで、この発明は、上記従
来技術による問題点を解消するために、造粒する原料で
ある肥料や飼料あるいは石粉などの粉体とバインダ−と
を円筒形造粒室内に投入する際、これらの投入される粉
体とバインダ−とが上記円筒形造粒室底部に供給される
ように、当該円筒形造粒室の機構と構造を工夫すること
を課題とするものである。Therefore, in order to solve the above-mentioned problems of the prior art, the present invention provides a cylindrical granulation chamber in which a powder such as fertilizer, feed or stone powder, which is a raw material for granulation, and a binder are formed. It is an object to devise a mechanism and a structure of the cylindrical granulation chamber so that the powder and the binder to be supplied are supplied to the bottom of the cylindrical granulation chamber when the powder is charged into the cylindrical granulation chamber. Is.
【０００４】[0004]
【課題解決のために講じた手段】（請求項１に対応）上
記課題を解決するために講じた手段は、造粒された造粒
物を排出する排出口を有する側壁、この側壁上部に粉体
とバインダ−の投入口を有する蓋、底壁、当該底壁に対
し水平回転する回転羽根を有する円筒形造粒室を備えた
連続式造粒機を前提として、次の（イ）、（ロ）、
（ハ）によって構成されるものである。
（イ）上記円筒形造粒室を傾斜させて設置したこと、
（ロ）上記円筒形造粒室の傾斜角αを水平面に対して５
°〜１５°の範囲にしたこと、
（ハ）上記円筒形造粒室を構成する蓋体に、造粒する粉
体とバインダーとを投入する投入口を、上記円筒形造粒
室の中心部より傾斜上側面に粉粒体によって形成される
垂直方向の渦状の窪み部に相対する位置に設けたこと。 Means taken for solving the problem (corresponding to claim 1) Means taken for solving the above-mentioned problems are as follows: a side wall having a discharge port for discharging granulated granules; Assuming a continuous granulator having a lid having a body and a binder inlet, a bottom wall, and a cylindrical granulation chamber having a rotary blade that horizontally rotates with respect to the bottom wall, the following (a), ( B),
(C). (A) The cylindrical granulation chamber is installed with an inclination, (b) The inclination angle α of the cylindrical granulation chamber is 5 with respect to the horizontal plane.
The powder is to be granulated on the lid forming the cylindrical granulation chamber.
The cylindrical granulation described above is used for the charging port for charging the body and binder.
Formed by granular material on the upper side inclined from the center of the chamber
It was installed at a position opposite to the vertical spiral recess.
【作用】円筒形造粒室内に投入された粉体は、回転羽根
によって撹拌されて旋回し、この旋回運動による遠心力
で、側壁に衝突し跳ね返され、上方へ押し上げられて反
転するという運動を繰り返すが、円筒形造粒室が傾斜さ
れているので、側壁に衝突し、上方に向かって反転しな
がら円筒形造粒室内で旋回する粉粒体の渦の中央窪み部
（空洞部）が、円筒形造粒室底部から傾斜した上端面の
上側に向かって形成される。すなわち、円筒形造粒室の
中心から低い方の部分に粉粒体の厚い層が形成され、円
筒形造粒室の底壁中心部に深い空洞が形成される。した
がって、この空洞部に投下された粉体は、回転羽根の回
転力を直接うけるので、落下した瞬間に強い遠心力を受
けて半径方向外方に強く振り飛ばされ、それにバインダ
−が付着して粒子形成の種になる。他方、微細な上記種
が円筒形造粒室の側壁に当たり、内方に反転して、中央
に戻り、再び遠心力で飛ばされるという動作が繰り返さ
れるうちに、粒子が徐々に成長する。そして、撹拌作用
で、粒子の径が大きいものほど上記反転流れの上層部分
に集まり、粒子成長過程の最終段階の粒径になった造粒
物が、円筒形造粒室の上記傾斜の低い部分に設けられた
排出口（製品排出口）から排出される。さらに、上記投
入口を蓋体の中心部より半径方向外方にずれた位置に設
けることになるので、蓋体中心部に他の機器を設置でき
る有効スペースの確保ができるものである。 [Function] The powder put into the cylindrical granulation chamber is agitated by the rotary blades and swirled. The centrifugal force of this swirling motion causes the powder to collide against the side wall, bounce off, and be pushed upwards to invert. Again, since the cylindrical granulation chamber is inclined, the central depression (cavity) of the vortex of the granular material that collides with the side wall and swirls in the cylindrical granulation chamber while turning upward, It is formed toward the upper side of the upper end surface inclined from the bottom of the cylindrical granulation chamber. That is, a thick layer of the granular material is formed in the lower part from the center of the cylindrical granulation chamber, and a deep cavity is formed in the center of the bottom wall of the cylindrical granulation chamber. Therefore, since the powder dropped in this cavity receives the rotational force of the rotary blades directly, it receives a strong centrifugal force at the moment of falling and is strongly shaken outward in the radial direction, and the binder adheres to it. Seeds for particle formation. On the other hand, while the fine seeds hit the side wall of the cylindrical granulation chamber, turn inward, return to the center, and are blown again by centrifugal force, the particles gradually grow. Then, as a result of the stirring action, the larger the particle diameter, the more the particles gather in the upper layer part of the reversal flow, and the particle size at the final stage of the particle growth process becomes the low inclination part of the cylindrical granulation chamber. It is discharged from the discharge port (product discharge port) provided in the. In addition, the above
Install the inlet at a position that is displaced radially outward from the center of the lid.
Since it will be opened, other equipment can be installed in the center of the lid.
The effective space can be secured.
【０００５】[0005]
【実施態様１】（請求項２に対応）
実施態様１は、造粒された造粒物の排出管を、上記円筒
形造粒室の側壁上部に接線方向に設けたことである。Embodiment 1 (corresponding to claim 2) Embodiment 1 is that a discharge pipe for granulated granules is provided tangentially to the upper side wall of the cylindrical granulation chamber.
【作用】上記円筒形造粒室内を粉粒物が旋回しつつ上昇
するので、造粒された造粒物が接線方向に設けられた排
出管から排出され易くなり、上記造粒物が再び造粒室に
滞留する量が減少し、粒子の粗大化が低減される。Since the granules ascend while swirling in the cylindrical granulation chamber, the granulated granules are easily discharged from the discharge pipe provided in the tangential direction, and the granules are granulated again. The amount retained in the grain chamber is reduced, and the coarsening of particles is reduced.
【０００６】[0006]
【実施態様２】（請求項３に対応）
実施態様２は、円筒形造粒室の蓋体の中心に駆動用モ−
タを取付け、この駆動用モ−タの回転軸に取付けたア−
ムに、円筒形造粒室の側壁面に沿って摺動するスクレ−
パを設け、当該スクレ−パを側壁内面に沿って摺動させ
ることである。(Embodiment 2) (Corresponding to claim 3) In Embodiment 2, a driving motor is provided at the center of the lid of the cylindrical granulation chamber.
Mounted on the rotary shaft of this drive motor.
Screen, which slides along the side wall of the cylindrical granulation chamber.
A scraper is provided and the scraper is slid along the inner surface of the side wall.
【作用】上記円筒形造粒室の側壁内面に付着する付着物
を掻き取る上記スクレ−パの駆動用モ−タを、蓋体の中
心部に設置することで、付着物掻き取り機構を単純化す
ることができ、故障の少ない、また、設置のための製造
コストを低減することができる。The motor for driving the scraper, which scrapes off the adhered matter adhering to the inner surface of the side wall of the cylindrical granulation chamber, is installed in the central portion of the lid, so that the mechanism for scraping the adhering matter is simplified. It is possible to reduce the number of malfunctions and reduce the manufacturing cost for installation.
【０００７】[0007]
【実施態様３】（請求項４に対応）
実施態様３は、上記円筒形造粒室の側壁に造粒物を排出
する縦長の開口を所定箇所に設け、当該開口に接続さ
れ、上記側壁の接線方向に配置された排出管の位置を上
下方向に調節可能にしたことである。(Third Embodiment) (Corresponding to Claim 4) In the third embodiment, a vertically elongated opening for discharging a granulated product is provided at a predetermined position on a side wall of the cylindrical granulation chamber, and the vertical opening is connected to the opening and the The position of the discharge pipe arranged in the tangential direction is vertically adjustable.
【作用】上記排出管の上下方向位置を調整することで、
造粒時間（円筒形造粒室滞留時間）が調整されるので、
これにより、製品として取り出される造粒物粒子径の大
きさを適宜調整することである。そして、上記造粒物粒
子径の調整を上記排出管の上下方向位置の調整だけで行
えるので、造粒物粒子径の調整のための構造を簡単化で
き、その操作を容易、迅速かつ正確に行える。[Operation] By adjusting the vertical position of the discharge pipe,
Since the granulation time (retention time of the cylindrical granulation chamber) is adjusted,
This is to appropriately adjust the size of the granulated material particles taken out as a product. And since the adjustment of the granule particle diameter can be performed only by adjusting the vertical position of the discharge pipe, the structure for adjusting the granule particle diameter can be simplified, and its operation is easy, quick and accurate. You can do it.
【０００８】[0008]
【実施例】この発明の実施例について、図１（ａ），
（ｂ）乃至図３を参照して説明をする。図１（ａ）は、
この発明の肥料、飼料、砕石を脱水した脱水ケ−キ、石
粉などの粉体を造粒する連続式造粒機の縦断面形状を概
念的に示したのもである。この連続式造粒機を構成する
円筒形造粒室１は、ラッパ状に形成されたのもので、こ
の円筒形造粒室１は、側壁２、底壁３、蓋体（図を省
略）からなるものである。そして、底壁３には、この底
壁３の底面に対して平行な面で回転する回転羽根４が設
置されており、側壁２は下方部の途中から上方に沿って
径が小さくなる円錐形状に形成されていて、回転羽根４
によって造粒室内を旋回させられながら上昇する粉粒体
が上方部から反転し易くなるように構成されている。ま
た、この側壁２の上部には、側壁２の接線方向に排出管
５が設けられていて、造粒された造粒物がこの排出管５
から排出されようになっている。さらに、この側壁２の
上部には蓋体が設けられている（図示省略）。この蓋体
には、その略中心に鎖線で示す駆動用モ−タ６が取付け
られていて、そのモ−タの駆動軸にア−ム７が取り付け
られ、また、当該ア−ムに側壁２の内面に付着する付着
物を掻き取るためのスクレ−パ８が取り付けられてい
る。また、上記蓋体に粉体１０とバインダ−１１とを投
入する投入口９が設けられており、この投入口９の配置
位置は、この蓋体の中央部に設けた駆動用モ−タ６から
半径方向外方にずれた位置、つまり、後述する造粒室１
内にできる垂直方向の渦状の窪み部に対応する位置であ
る。そして、上記のように構成された円筒形造粒室１
は、全体が水平面に対して傾斜して設置されている。そ
の傾斜角αは１０°に設定されている。造粒室内で撹拌
混合されながら旋回しつつ上昇する粉粒体が、上昇後に
反転して落下する落下地点を造粒室の中央部より傾斜上
側位置になるようにすることと、この落下地点にできる
旋回運動によって生じる渦状の垂直方向の窪み部に粉体
とバインダ−とを投入した際回転羽根４の上面に届き易
くするという観点からして、上記のとおり、円筒形造粒
室１の傾斜角度は略１０°程度が好ましい。なお、この
傾斜角度１０°よりも小さいほど、傾斜させることの利
点が低減され、１０°を越えて大きいほど、円筒形造粒
室１内における粉流体の偏りが大きくなるので、円筒形
造粒室１内の粉流体全体の旋回抵抗が増大し、当該旋回
の円滑さが低下する。以上のことを勘案しつつ、造粒材
料、バインダーの種類、円筒形造粒室１のサイズなどを
考慮して、最適な角度に選択すればよい。ところで、こ
の発明の造粒機によって造粒される肥料、飼料、砕石を
脱水した脱水ケ−キ、石粉などの粉体は、その粒径は略
２００メッシュ（略７４ミクロン）以下のものが５０〜
１００％含まれている。また、バインダ−には、肥料粉
の場合にはパルプ廃液などが、また飼料粉の場合には小
麦粉などが、さらに砕石を脱水した脱水ケ−キや石粉の
場合にはセメントあるいは生石灰などが用いられる。ま
た、上記の円筒形造粒室１の底壁３の底壁面の上部に設
置された上記回転羽根４は、図４の従来例と同様に、底
壁３の下方部に設置された駆動用モ−タ（図示を省略）
によって駆動される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention is shown in FIG.
A description will be given with reference to (b) to FIG. Figure 1 (a)
The vertical sectional shape of the continuous granulator for granulating powder such as fertilizer, feed, dehydrated cake obtained by dehydrating crushed stone, and stone powder of the present invention is conceptually shown. The cylindrical granulation chamber 1 constituting this continuous granulator is formed in a trumpet shape, and this cylindrical granulation chamber 1 is composed of a side wall 2, a bottom wall 3 and a lid (not shown). It is a thing. The bottom wall 3 is provided with a rotary blade 4 that rotates in a plane parallel to the bottom surface of the bottom wall 3, and the side wall 2 has a conical shape whose diameter decreases from the middle of the lower part to the upper part. Is formed on the rotary blade 4
The powder granules that rise while being swirled in the granulation chamber are configured to be easily inverted from the upper portion. Further, a discharge pipe 5 is provided in an upper portion of the side wall 2 in a tangential direction of the side wall 2, and the granulated material thus granulated is discharged from the discharge pipe 5.
Is about to be discharged from. Furthermore, a lid is provided on the upper portion of the side wall 2 (not shown). A drive motor 6 shown by a chain line is attached to the lid body at a substantially center thereof, an arm 7 is attached to a drive shaft of the motor, and a side wall 2 is attached to the arm. A scraper 8 is attached to scrape off the adhered matter on the inner surface of the. Further, the lid is provided with a charging port 9 for charging the powder 10 and the binder 11, and the position of the charging port 9 is arranged at the center of the driving motor 6 for driving. To a position radially outward from the granulation chamber 1, which will be described later.
It is the position corresponding to the vertical vortex recess formed inside. Then, the cylindrical granulation chamber 1 configured as described above
Is installed so as to be inclined with respect to the horizontal plane. The inclination angle α is set to 10 °. The granular material that rises while swirling while being agitated and mixed in the granulation chamber is set so that the falling point where it reverses and falls after rising rises to a position above the center of the granulation chamber, which is an upper slope. From the viewpoint of making it easier for the powder and the binder to reach the upper surface of the rotary vane 4 when the powder and the binder are put into the vortex-shaped vertical recessed portion caused by the swirling motion, the inclination of the cylindrical granulation chamber 1 is as described above. The angle is preferably about 10 °. If the tilt angle is smaller than 10 °, the advantage of tilting is reduced, and if it is larger than 10 °, the bias of the powder fluid in the cylindrical granulation chamber 1 becomes large, so that the cylindrical granulation is performed. The swirling resistance of the entire powder fluid in the chamber 1 increases, and the smoothness of the swirling decreases. In consideration of the above, the optimum angle may be selected in consideration of the granulating material, the type of binder, the size of the cylindrical granulating chamber 1, and the like. By the way, powder of fertilizer, feed, dehydrated cake obtained by dehydrating crushed stone, stone powder, etc. granulated by the granulator of the present invention has a particle size of about 200 mesh (about 74 microns) or less. ~
100% included. Further, as the binder, pulp waste liquid or the like in the case of fertilizer powder, wheat flour or the like in the case of feed powder, and dehydration cake obtained by further dehydrating crushed stone or cement or quick lime in the case of stone powder are used. To be Further, the rotary blade 4 installed on the upper part of the bottom wall surface of the bottom wall 3 of the cylindrical granulation chamber 1 described above is for driving installed on the lower part of the bottom wall 3 as in the conventional example of FIG. Motor (not shown)
Driven by.
【０００９】円筒形造粒室１内の粉粒体は回転羽根４の
回転中心を中心として旋回するが、円筒形造粒室１が傾
斜しているので、造粒室傾斜の上側は下側に比べて粉粒
体の集積は少なくなる。また、造粒室底部の粉粒体は遠
心力で外側に移動して造粒室円筒面を上昇していくが、
その移動速度は傾斜上側が下側に比べ集積量が少ないの
で効率よく速く移動する。したがって、底部粉粒体の集
積厚さは傾斜上側が下側に比べ薄くなり窪みが形成され
る。上記のように、円筒形造粒室１内にできる上記のと
おりの窪み部１２に投入された上記石粉などの粉体１０
とバインダ−１１は、円筒形造粒室１の下方に設置した
回転羽根４の上面に達し、回転羽根４で直接振り飛ばさ
れる。そして、粉粒体は撹拌されているので、大粒子の
間隙を粉や小粒子（粉粒体）が通過して下方に下がり、
上方には大粒子（造粒された造粒物）が積層されるもの
である。次いで、図１（ｂ）に示す他の実施例について
説明する。この実施例においては造粒物は、排出させる
製品造粒物の粒子径を、その造粒室内での滞留時間を調
節することでコントロ−ルするようにしたものである。
すなわち、このものは、円筒形造粒室１の側壁２に縦長
の開口１３を設け、この開口１３から製品造粒物を取り
出すための排出管１４を、この開口１３に沿って上下方
向に摺動可能に設けたものである。そして、この排出管
１４を駆動装置（図を省略）によって上下方向に移動さ
せることにより、投入されてから当該排出管１４から取
り出されるまでの時間、つまり、円筒形造粒室１での滞
留時間が変わるので、上記排出管１４から取り出される
製品の粒径が調整される。なお、造粒する粉体やバイン
ダ−の種類によっては、造粒室内に粉粒体の過大粒子が
できることがあるので、このような固まりが生じる場合
に備えて、垂直面で回転する垂直羽根１５を円筒形造粒
室１近傍に設け、これによって上記固まりを解砕するよ
うにしている。The granules in the cylindrical granulation chamber 1 revolve around the rotation center of the rotary blade 4, but since the cylindrical granulation chamber 1 is inclined, the upper side of the inclination of the granulation chamber is the lower side. The accumulation of powder and granules is less than that of. In addition, the granules at the bottom of the granulation chamber move outward due to centrifugal force and rise up on the cylindrical surface of the granulation chamber,
The moving speed of the upper side of the slope is smaller than that of the lower side, so that the moving speed is efficient and fast. Therefore, the integrated thickness of the bottom granular material becomes thinner on the upper side of the slope than on the lower side, and a recess is formed. As described above, the powder 10 such as the above-mentioned stone powder, which is put into the hollow portion 12 formed in the cylindrical granulation chamber 1 as described above.
The binder 11 reaches the upper surface of the rotary blade 4 installed below the cylindrical granulation chamber 1, and is directly shaken off by the rotary blade 4. And since the powder and granules are agitated, the powder and small particles (powder and granules) pass through the gaps between the large particles and fall downward,
Large particles (granulated granules) are stacked above. Next, another embodiment shown in FIG. 1B will be described. In this embodiment, the granules are controlled by controlling the particle size of the product granules to be discharged by controlling the residence time in the granulation chamber.
That is, in this product, a vertically long opening 13 is provided in the side wall 2 of the cylindrical granulation chamber 1, and a discharge pipe 14 for taking out a product granulated product from the opening 13 is slid vertically along the opening 13. It is movably provided. Then, by moving the discharge pipe 14 in the vertical direction by a driving device (not shown), the time from the charging to the discharge pipe 14, that is, the residence time in the cylindrical granulation chamber 1. , The particle size of the product taken out from the discharge pipe 14 is adjusted. Depending on the type of powder or binder to be granulated, oversized particles may be formed in the granulation chamber. Therefore, in preparation for the case where such agglomerates occur, the vertical blades 15 that rotate on the vertical plane 15 Is provided in the vicinity of the cylindrical granulation chamber 1 so that the above lumps are crushed.
【００１０】次いで、図２（ａ）を参照しつつ、図１の
実施例における円筒形造粒室１内の粉粒体の平面内での
流れを説明する。造粒室１内の粉粒体は、回転羽根４の
回転運動により矢視１６の方向に旋回させられながら上
昇し、上方部から反転落下して円筒形造粒室中心より傾
斜上側面に鎖線で示す位置に、渦状の垂直方向の窪み部
１２が形成される。この旋回流の中で所定の大きさに成
長した造粒体Ｐが、旋回層の上層において、円筒形造粒
室１内壁にそって流れるから、接線方向に配置された排
出管５に流れ込み、この排出管５から排出される。回転
羽根４のＡ−Ａ断面形状を図２（ｂ）に示している。こ
の実施例で用いられる回転羽根４は上面が平面部１７と
傾斜面部１８で構成されており、底面部１９が若干傾斜
する三角形状にされたものである。これにより、投入さ
れたバインダ−が平面部１７上によって振り飛ばされ
て、微細な粒子種が生成され易すい。図３は、上記実施
例の造粒機による製品として排出された造粒物の粒度分
布と従来型の造粒機による製品として排出される造粒物
の粒度分布を示したものである。この図で解るように、
この発明の造粒機によって造られる造粒物の粒度は、こ
の図３に示す粒度分布線（Ａ）のように５〜２ｍｍの造
粒物が９５％とその粒度分布は非常に狭いものになって
おり、製品としては粒子径の揃った良質のものである。
これに比べて従来の造粒機による造粒物の粒度分布は、
同図の粒度分布線（Ｂ）のように、５〜２ｍｍの造粒物
は６９％程度しかなく、その粒度分布は非常に広くなっ
ている。このように、この発明と従来のものとでは、製
造された造粒物の粒径の分布幅が大きく相違する。Next, with reference to FIG. 2 (a), the flow in the plane of the granular material in the cylindrical granulation chamber 1 in the embodiment of FIG. 1 will be described. The granular material in the granulation chamber 1 rises while being swung in the direction of the arrow 16 by the rotary motion of the rotary blade 4, reversely falls from the upper part, and is inclined from the center of the cylindrical granulation chamber to a chain line on the upper side surface. At the position shown by, a spiral hollow 12 is formed. Since the granulated body P that has grown to a predetermined size in this swirling flow flows along the inner wall of the cylindrical granulating chamber 1 in the upper layer of the swirling layer, it flows into the discharge pipe 5 arranged in the tangential direction, It is discharged from this discharge pipe 5. The cross-sectional shape of the rotary vane 4 taken along the line AA is shown in FIG. The rotary blade 4 used in this embodiment has a top surface composed of a flat surface portion 17 and an inclined surface portion 18, and a bottom surface portion 19 formed in a triangular shape with a slight inclination. As a result, the charged binder is shaken off by the flat portion 17, and fine particle species are easily generated. FIG. 3 shows the particle size distribution of the granulated product discharged as a product by the granulator of the above-described example and the particle size distribution of the granulated product discharged as a product by the conventional granulator. As you can see in this figure,
As for the particle size of the granulated product produced by the granulating machine of the present invention, as shown by the particle size distribution line (A) shown in FIG. 3, 95% of the granulated product of 5 to 2 mm has a very narrow particle size distribution. The product is of good quality with a uniform particle size.
Compared with this, the particle size distribution of the granulated product by the conventional granulator is
As shown by the particle size distribution line (B) in the figure, only about 69% of granules have a size of 5 to 2 mm, and the particle size distribution is very wide. As described above, the distribution width of the particle size of the produced granulated product is greatly different between the present invention and the conventional one.
【００１１】[0011]
【発明の効果】この発明は、造粒機の円筒形造粒室を水
平面に対して５°〜１５°に傾斜させて設けたものであ
るから、回転羽根によって旋回しながら側壁に沿って上
昇・反転落下する粉粒体層の中央にできる垂直方向の窪
み部が円筒形造粒室中心よりも傾斜上側へずれ、円筒形
造粒室の低い側の粉粒体層が厚くなるので、窪み部の下
端が回転羽根の表面乃至はその近傍に達する。したがっ
て、窪み部に投下された粉体とバインダ−とが造粒室下
方の回転羽根上、乃至はその近傍に直接達し、回転羽根
による遠心力を強く受けて振り飛ばされ、微細な粒子種
が速やかに生成されるものである。その結果、これらの
粒子種によって造粒過程にある粉粒体層が旋回させられ
つつ上方に向かって押し上げられながら造粒が一層促進
され造粒物を、効率的、能率的に製造することができ
る。また、上記渦巻き状の窪み部に相対する位置に粉体
やバインダ−の投入口を配置することにより、その配置
が蓋体の中心部よりも傾斜上側面にずれるので、蓋体の
中心にスクレ−パの駆動用モ−タを設置することが可能
になり、スクレ−パに駆動用モ−タからの駆動力を伝え
る機構が単純化され、そのための設備コストが低減され
る。さらに、造粒物を排出する排出管を造粒室側壁に、
その接線方向に設けたことにより、造粒物が造粒室内を
旋回する方向と同じ方向に排出されるので、製品造粒物
の流出がスムーズになされ、また、このために円筒形造
粒室内の造粒物の旋回を、製品造粒物の流出動作によっ
て阻害することはなく、したがって、上記旋回は円滑に
なされる。さらに、上記排出管の上下方向位置を調整す
ることで、造粒時間（円筒形造粒室滞留時間）が調整さ
れるので、これにより、製品として取り出される造粒物
粒子径の大きさを適宜調整することができる。したがっ
て、上記造粒物粒子径の調整を上記排出管の上下方向位
置の調整だけで行え、また、造粒物の粒子径の調整のた
めの構造を簡単化できる。それゆえ、造粒物の大きさを
種々に調整、変更する必要がある種類の連続式造粒機へ
の対応が簡単・容易である。As described above, according to the present invention, the cylindrical granulating chamber of the granulator is provided so as to be inclined at 5 ° to 15 ° with respect to the horizontal plane.・ The vertical recess formed in the center of the granular material layer that falls in the reverse direction shifts to the upper side of the center of the cylindrical granulation chamber, and the granular material layer on the lower side of the cylindrical granulation chamber becomes thicker. The lower end of the portion reaches the surface of the rotary vane or its vicinity. Therefore, the powder and the binder dropped in the hollow portion directly reach the rotary blade below the granulation chamber, or in the vicinity thereof, and are strongly shaken by the centrifugal force of the rotary blade, and fine particle species are generated. It is generated promptly. As a result, granulation is further promoted while the powdery or granular material layer in the granulation process is being swung upward by these particle species while being swung upward, and the granulated product can be efficiently and efficiently manufactured. it can. Further, by disposing the powder or binder inlet at a position opposite to the spiral recess, the dislocation is displaced to the inclined upper side surface with respect to the center of the lid, so that the screed is placed at the center of the lid. -It becomes possible to install a motor for driving the perm, the mechanism for transmitting the driving force from the motor for driving to the scraper is simplified, and the equipment cost therefor is reduced. Furthermore, a discharge pipe for discharging the granulated material is provided on the side wall of the granulation chamber,
By providing in the tangential direction, the granulated product is discharged in the same direction as the direction in which the granulated product is swirled, so that the product granulated product can be smoothly discharged, and for this reason, the cylindrical granulated product chamber is also provided. The swirling of the granulated product is not obstructed by the outflow operation of the product granulated product, so that the swirling is smoothly performed. Further, since the granulation time (retention time in the cylindrical granulation chamber) is adjusted by adjusting the vertical position of the discharge pipe, the size of the granule particle size taken out as a product can be adjusted accordingly. Can be adjusted. Therefore, the particle size of the granulated product can be adjusted only by adjusting the vertical position of the discharge pipe, and the structure for adjusting the particle size of the granulated product can be simplified. Therefore, it is easy and easy to deal with a continuous granulator of the type that requires various adjustments and changes in the size of the granulated product.
【図１】（ａ）は、この発明の連続式造粒機を構成する
造粒室の概念的な縦断面図を示したのもで、（ｂ）は、
造粒室の側壁に上下動可能にする造粒物排出口を設ける
ようにした造粒室の概念的な縦断面図である。FIG. 1 (a) is a conceptual vertical sectional view of a granulation chamber constituting a continuous granulator of the present invention, and FIG. 1 (b) shows
It is a conceptual longitudinal cross-sectional view of a granulation chamber in which a granule discharge port that allows vertical movement is provided on the side wall of the granulation chamber.
【図２】（ａ）は、図１（ａ）の概略的な平面図を示す
もので、（ｂ）は、図１（ａ）のＡ−Ａ断面図である。2 (a) is a schematic plan view of FIG. 1 (a), and FIG. 2 (b) is a sectional view taken along line AA of FIG. 1 (a).
【図３】は、この発明の造粒機で生産される造粒物と従
来の造粒機で生産される造粒物のそれぞれの粒度分布を
比較した粒度構成表である。FIG. 3 is a particle size constitution table comparing the particle size distributions of the granulated product produced by the granulator of the present invention and the granulated product produced by the conventional granulator.
【図４】は、従来の造粒機の概念的な側面図である。FIG. 4 is a conceptual side view of a conventional granulator.
１：円筒形造粒室 ２：側壁 ３：底壁 ４：回転羽根 ５：排出管 ６：駆動用モ−タ ９：投入口 １２：窪み部 １４：排出管 １５：垂直羽根 1: Cylindrical granulation chamber 2: Side wall 3: Bottom wall 4: Rotating blade 5: Discharge pipe 6: Drive motor 9: Input port 12: Dimple 14: Discharge pipe 15: Vertical blade
フロントページの続き (56)参考文献 特開 昭50−8962（ＪＰ，Ａ) 特公 平６−22667（ＪＰ，Ｂ２) 特許2636036（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 2/10 Continuation of the front page (56) References JP-A-50-8962 (JP, A) JP-B 6-22667 (JP, B2) Patent 2636036 (JP, B2) (58) Fields investigated (Int.Cl. 7) , DB name) B01J 2/10
Claims (5)
された円筒形造粒室の造粒室内に粉体とバインダ−とを
連続的に投入し、これら粉体を造粒室底壁上部に装備し
た水平回転羽根により撹拌、混合させつつ造粒する連続
式造粒機において、 上記円筒形造粒室を傾斜させて設置し、その傾斜角αを
水平面に対して５°〜１５°の範囲にし、上記円筒形造粒室を構成する蓋体に、造粒する粉体とバ
インダ−とを投入する投入口を、上記円筒形造粒室の中
心部より傾斜上側面に粉粒体によって形成される渦状の
窪み部に相対する位置に設けたこと を特徴とする連続式
造粒機。1. A powder and a binder are continuously charged into a granulation chamber of a horizontally arranged cylindrical granulation chamber composed of a side wall, a bottom wall and a lid, and the powder is granulated. In a continuous granulator that granulates while stirring and mixing with a horizontal rotary blade equipped on the upper part of the bottom wall of the chamber, the cylindrical granulating chamber is installed at an inclination, and the inclination angle α is 5 ° with respect to the horizontal plane. Within a range of up to 15 °, the powder and granules to be granulated are added to the lid constituting the cylindrical granulation chamber.
Insert the inlet into the cylindrical granulation chamber.
A vortex formed by powder particles on the upper side inclined from the core
A continuous granulator characterized in that it is provided at a position facing the depression .
造粒室の側壁上部に接線方向に設けたことを特徴とする
請求項１の連続式造粒機。2. The continuous granulator according to claim 1, wherein a discharge pipe for granulated granules is provided tangentially to the upper side wall of the cylindrical granulation chamber.
用モ−タを取付け、この駆動用モ−タの回転軸に取付け
たア−ムに側壁内面に沿って摺動するスクレ−パを設
け、当該スクレ−パを上記側壁内面に沿って摺動させる
ことを特徴とする請求項１乃至請求項２の連続式造粒
機。3. A drive motor is attached to the center of the lid of the cylindrical granulation chamber, and the arm attached to the rotary shaft of the drive motor is slid along the inner surface of the side wall. The continuous granulator according to claim 1 or 2, wherein a scraper is provided and the scraper is slid along the inner surface of the side wall.
物を排出する縦長の開口を設け、当該開口に接続され、
上記側壁の接線方向に配置された排出管の位置を上下方
向に調節するようにした請求項１，請求項３の連続式造
粒機。4. A vertically elongated opening for discharging a granulated product is provided at a predetermined location on a side wall of the cylindrical granulation chamber, and the vertical opening is connected to the opening.
4. The continuous granulator according to claim 1, wherein the position of the discharge pipe arranged in the tangential direction of the side wall is adjusted in the vertical direction.
された円筒形造粒室の造粒室内に粉体とバインダ−とを
連続的に投入し、これら粉体を造粒室底壁上部に装備し
た水平回転羽根により撹拌、混合させつつ造粒する連続
造粒方法おいて、 傾斜した円筒形造粒室内の粉粒体の渦巻状の窪みに、そ
の直上から粉体及びバインダーを上記渦巻状の窪みの底
部に連続供給する、連続造粒方法。5. A powder and a binder are continuously charged into a granulation chamber of a horizontally arranged cylindrical granulation chamber composed of a side wall, a bottom wall and a lid, and the powder is granulated. In a continuous granulation method in which granulation is performed while stirring and mixing with a horizontal rotary blade equipped on the upper part of the bottom wall of the chamber, the spiral hollow of the granular material in the inclined cylindrical granulation chamber A continuous granulation method in which a binder is continuously supplied to the bottom of the spiral hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001111663A JP3521192B2 (en) | 2001-04-10 | 2001-04-10 | Continuous granulator and continuous granulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001111663A JP3521192B2 (en) | 2001-04-10 | 2001-04-10 | Continuous granulator and continuous granulation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002306945A JP2002306945A (en) | 2002-10-22 |
| JP3521192B2 true JP3521192B2 (en) | 2004-04-19 |
Family
ID=18963226
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001111663A Expired - Fee Related JP3521192B2 (en) | 2001-04-10 | 2001-04-10 | Continuous granulator and continuous granulation method |
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| Country | Link |
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| JP (1) | JP3521192B2 (en) |
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|---|---|---|---|---|
| JP6518435B2 (en) * | 2014-12-17 | 2019-05-22 | 株式会社アーステクニカ | Stirrer and operating method thereof |
| EP3328529B1 (en) * | 2015-07-29 | 2019-07-10 | Disa Industries A/S | Sand mixing device and method of mixing sand |
| JP6929061B2 (en) * | 2016-12-28 | 2021-09-01 | 株式会社アーステクニカ | Stirring granulator |
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2001
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|---|---|
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