JPS6391134A - Powder granulator - Google Patents
Powder granulatorInfo
- Publication number
- JPS6391134A JPS6391134A JP23443586A JP23443586A JPS6391134A JP S6391134 A JPS6391134 A JP S6391134A JP 23443586 A JP23443586 A JP 23443586A JP 23443586 A JP23443586 A JP 23443586A JP S6391134 A JPS6391134 A JP S6391134A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- rolls
- press
- cutting
- string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims description 8
- 239000008187 granular material Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005469 granulation Methods 0.000 claims abstract 3
- 230000003179 granulation Effects 0.000 claims abstract 3
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000000748 compression moulding Methods 0.000 claims 1
- 239000008188 pellet Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 239000012798 spherical particle Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Glanulating (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、粉体の粒状化、特に球状粒子の製造装置に係
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an apparatus for granulating powder, particularly for producing spherical particles.
[従来の技術]
粒状物の流動性は、粒子形状の観点から見ると、鋭角的
な形状より球形に近い方が良好な結果を示すことは、周
知である。特に、肥料用に供する粒状物においては、施
肥上の点から、粒子形状は、球状である事が要求されて
いる。[Prior Art] It is well known that, from the viewpoint of particle shape, the fluidity of granules is better when they are more spherical than when they have an acute-angled shape. Particularly, in the case of granular materials used as fertilizers, the particle shape is required to be spherical from the viewpoint of fertilization.
粉状物から粒状物を製造する方法として、粉状物を一対
の平ロールで圧縮成型して平板状の造粒物とした後解砕
機にて解砕を行ない不定形粒状物を得るコンパクテイン
グ、或は粉状物を表面に多数の凹部(以下「ポケット穴
」と呼ぶ)を有する一対のロールで圧縮成型して、ロー
ルのポケット穴に相当する多数の凸部(以下「タブレッ
ト」と呼ぶ)を有する盤状物とした後、解砕機にて解砕
を行ない、ロールのポケット穴に相当する形状の粒子を
得るブリヶ、。As a method for producing granules from powder, compacting is used to compression mold the powder using a pair of flat rolls to form flat granules, which are then crushed using a crusher to obtain irregularly shaped granules. Alternatively, a powder material is compression molded with a pair of rolls having a large number of concave portions (hereinafter referred to as "pocket holes") on the surface, and a large number of convex portions corresponding to the pocket holes of the rolls (hereinafter referred to as "tablets") are formed. ) and then crushed in a crusher to obtain particles with a shape corresponding to the pocket holes of the roll.
ティング等が一般的に行なわれている。Tying etc. are commonly performed.
しかしながら、前者のコンパクテイングでは、一定形状
の粒子を得る事は難しく、不定形粒状物が得られるに過
ぎない。また後者のブリケラティングでは、各タブレッ
トの周囲全体にタブレットとタブレットをつなぐ盤のが
いわゆる“バリ゛として残り、この“バリ“の部分の圧
縮比は、タブレット部分のそれより大きく、タブレット
より固く圧縮されている。このため、この“バリ゛を完
全に取り除く事は難しく、たとえ半球状のポケット穴を
持つロールで成型した場合にも製品として得られる粒子
の形状は、球形になりにくい。又球状部の圧縮比を高く
すると解砕不能となるという欠点を有する。However, in the former compacting method, it is difficult to obtain particles with a constant shape, and only irregularly shaped particles are obtained. In addition, in the latter type of briquerating, the board that connects the tablets remains around the entire periphery of each tablet as a so-called "burr", and the compression ratio of this "burr" part is larger than that of the tablet part and is harder than the tablet. Therefore, it is difficult to completely remove these burrs, and even when molded using a roll with hemispherical pocket holes, the shape of the particles obtained as a product is difficult to become spherical. Moreover, if the compression ratio of the spherical part is increased, it has the disadvantage that it becomes impossible to crush it.
[発明の解決しようとする問題点]
本発明者らは、プレス用ロール及び解砕機を改善し、真
に球に近い粒状を得る方法につぃて、種々検討を重ねた
結果本発明に到達したものである。[Problems to be Solved by the Invention] The present inventors have arrived at the present invention as a result of various studies on a method for improving press rolls and crushers and obtaining granules that are truly close to spheres. This is what I did.
[問題点を解決するための手段]
即ち本発明は、粉状物から粒状物を製造するにあたり粉
状物を、周方向に沿って連続的に凹部を有する一対のプ
レス用ロールで圧縮成型し、得られる紐状物を、一定の
間隔で先端の鋭角な凸部を有する歯車状ロールと平ロー
ルの間に通して、圧縮方向の厚み:切断長さが1:0.
5〜1.5になる様に切断して行なう粒状物の製造方法
を提供するものである。[Means for Solving the Problems] That is, the present invention involves compressing and molding the powder using a pair of press rolls having continuous recesses along the circumferential direction when producing a granular material from a powder. The obtained string-like material is passed between a gear-shaped roll having an acute-angled convex portion at a constant interval and a flat roll, so that the thickness in the compression direction: the cutting length is 1:0.
The present invention provides a method for producing granules by cutting them into particles having a size of 5 to 1.5.
次に本発明に従う製造装置の一例を図面に沿って説明す
る。Next, an example of a manufacturing apparatus according to the present invention will be explained with reference to the drawings.
第1図は製造装置の詳細を示すものである。FIG. 1 shows details of the manufacturing apparatus.
原料用ホッパー1に供給された粉状物2は、プレスロー
ル3.3′により圧縮成型され紐状成型物4となる。プ
レスローラー3.3′は図に示すごとく、円周方向に沿
って所望の粒径に対応する例えば半円状の溝が掘られて
おり、この溝は長さ方向に多数連なっている。プレスロ
ーラー3.3′の溝は、まったく対称形に作られており
、例えばロールに半円状の溝を掘った場合においては、
両ロールの接触する所では、円を形成する事になる。両
ロールの溝が対称形でない場合には、紐状物は、どちら
か摩擦抵抗の大きい方に圧着され、ロールからの離型が
不十分となる。このプレスローラー3.3′で圧縮成形
された紐状連結物は、ガイド7に導かれて切断ロール5
.5′に供給される。切断ロール5は、先端部を鋭角に
した凸部を一定の間隔で有する歯車状ロールで、切断ロ
ール5′は、切断ロール5と同一の外径を持つ平ロール
である。この切断ロール5.5′のクリアランスを、プ
レスロール3.3′で圧縮成形された紐状成形物の最大
厚みより若干狭くすることにより、紐状連結物は切断用
ロール5の凸部のピッチに従った長さに切断され、円柱
状のペレットとなる。このペレットの形状は、必ずしも
円柱状である必要はなく、楕円柱、直方体等の形状でも
よいが次工程で球状化粒子とするためには、ペレットの
厚みと長さの比が0.5〜1.5である事が望ましい。The powdered material 2 supplied to the raw material hopper 1 is compressed and molded into a string-like molded material 4 by press rolls 3 and 3'. As shown in the figure, the press roller 3.3' has semicircular grooves, for example, corresponding to a desired grain size, cut along the circumference, and a large number of these grooves are continuous in the length direction. The grooves of the press roller 3.3' are made completely symmetrically, for example, when semicircular grooves are dug in the roll,
Where both rolls touch, a circle will be formed. If the grooves on both rolls are not symmetrical, the string-like material will be crimped onto whichever has greater frictional resistance, resulting in insufficient release from the rolls. The string-like connected material compression-molded by the press rollers 3 and 3' is guided to the guide 7 and cut to the cutting roll 5.
.. 5'. The cutting roll 5 is a gear-shaped roll having convex portions with acute angle tips at regular intervals, and the cutting roll 5' is a flat roll having the same outer diameter as the cutting roll 5. By making the clearance of this cutting roll 5.5' slightly narrower than the maximum thickness of the string-like molded product compression-molded by the press roll 3.3', the string-like connected object can be formed at the pitch of the protrusions of the cutting roll 5. It is cut into lengths according to the following and becomes cylindrical pellets. The shape of this pellet does not necessarily have to be cylindrical, and may be an elliptical cylinder, a rectangular parallelepiped, etc., but in order to make spheroidized particles in the next step, the ratio of the thickness and length of the pellet should be 0.5 to 0.5. A value of 1.5 is desirable.
こうして得られたペレットは、公知の技術(例えば、不
二パウダル社製マルメライザー)を用いて、摩砕させる
事により容易に球状粒子とする事ができる。The pellets thus obtained can be easily made into spherical particles by grinding them using a known technique (for example, Marumerizer manufactured by Fuji Paudal Co., Ltd.).
以下に、本発明に従う装置を用いて製造を行なった実施
例を示す。Examples manufactured using the apparatus according to the present invention will be shown below.
実施例1
32Meアンダーの粉状塩化アンモニウムをプレスロー
ラに送り込み紐状成形物を得た。プレスロールは、周方
向に沿ってR= 1.9mmの半円の溝を有する2個1
組のロールから成り、ロールの周速は、 0.2m/s
eeで運転した。この時得られた紐状成形物の写真を第
2図に示す。Example 1 Powdered ammonium chloride under 32Me was fed into a press roller to obtain a string-like molded product. The press roll has two semicircular grooves with R = 1.9 mm along the circumferential direction.
Consists of a set of rolls, the circumferential speed of the rolls is 0.2m/s
I drove with ee. A photograph of the string-like molded product obtained at this time is shown in FIG.
プレスロールで形成された紐状成形物は、次いで、ガイ
ドに導かれ、 0.8m/secの周速で運転されてい
る切断ロールに導入された。切断ロールは、ピッチ4.
9mmで先端の鋭角な凸部を有する歯車状のロールと、
このロールと同一の径を有する平ロールとから成り、こ
の2つのロールのクリアランスは3.0mmに調整され
た。The string-shaped molded product formed by the press roll was then guided by a guide and introduced into a cutting roll operating at a circumferential speed of 0.8 m/sec. The cutting roll has a pitch of 4.
A gear-shaped roll with a 9 mm diameter and an acute-angled protrusion,
It consisted of a flat roll having the same diameter as this roll, and the clearance between these two rolls was adjusted to 3.0 mm.
得られたペレットは、直径3 、8mm、切断長さ4〜
5■の円柱状ペレットで、この円柱状ペレットの写真を
第3図に示す。The obtained pellets had a diameter of 3.8 mm and a cutting length of 4 to 8 mm.
A photo of the cylindrical pellet is shown in FIG. 3.
この円柱状ペレットは、ざらに摩砕装置(不ニパウダル
社製マルメライザー)に導入され、直径2.0〜3.E
l+amの球状粒子となった。得られた球状粒子は、本
屋式硬度計で測定した硬度2.0kg/個安息角37°
であった。この粒子の写真を第4図に示す。The cylindrical pellets were introduced into a coarse grinding device (Marumerizer manufactured by Fuji Paudal Co., Ltd.), and the cylindrical pellets had a diameter of 2.0 to 3 mm. E
It became a spherical particle of l+am. The obtained spherical particles had a hardness of 2.0 kg/piece with an angle of repose of 37° as measured by a Honya type hardness meter.
Met. A photograph of this particle is shown in FIG.
第1図は本発明装置の1例を示す鳥かん図である。
第2図は本発明装置による粒状物の中間体である紐状成
形物を示す写真である。
第3図は、第2図の紐状成形物から得られた円柱状ペレ
ットを示す写真である。
第4図は、第3図の円柱状ペレットから得られた球状粒
子を示す写真である。
二
牛 1 図
図面の浄8(内存に変更なし)
第2 図
図面の浄古(内容に変更なし)
拓5図
図面の浄書(内容に変更なし)
第4図
手続補正書(舷)
昭和62年 2月23日FIG. 1 is a bird's eye view showing one example of the device of the present invention. FIG. 2 is a photograph showing a string-like molded product which is an intermediate product of granules produced by the apparatus of the present invention. FIG. 3 is a photograph showing cylindrical pellets obtained from the string-like molded product of FIG. 2. FIG. 4 is a photograph showing spherical particles obtained from the cylindrical pellets of FIG. 3. Two cows 1. Reproduction of the drawings in Figure 8 (no change in the contents). 2. Reconstruction of the drawings in Figure 5. (no changes in the contents). Engraving of the drawings in Figure 5. (No changes in the contents.) Figure 4. Procedure amendment (ship). 1988. February 23rd
Claims (5)
ス用ロールによって粉状物を圧縮成型し得られた紐状物
を切断して粒状物とする粉状物から粒状物を得る粒状化
装置。(1) Granules are obtained by compression-molding a powder using a pair of press rolls that have continuous recesses along the circumferential direction and cutting the resulting string-like material. conversion device.
求の範囲第1項記載の粒状化装置。(2) The granulating device according to claim 1, wherein the concave portions of the two rolls are made symmetrically.
の最大深さの1.0倍以下である特許請求の範囲第1項
記載の粒状化装置。(3) The granulating device according to claim 1, wherein the width of the flat plate portion between the recesses of the roll is 1.0 times or less the maximum depth of the recesses.
向の厚み:切断長さが1:0.5〜1.5になるように
切断して粒状とする特許請求範囲第1項記載の粒状化装
置。(4) The string-like molded product obtained by roll forming is cut into granules so that the thickness in the compression direction:cutting length is 1:0.5 to 1.5. Granulation equipment.
先端の鋭角な凸部を有する歯車状ロールと平ロールとの
間に紐状物を通すことに よって粒状物とする特許請求範囲第3項記載の粒状化装
置。(5) When cutting a string-like material, the string-like material is made into granules by passing the string-like material between a flat roll and a gear-shaped roll having an acute-angled convex portion at a rotating constant interval. The granulation device according to item 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23443586A JPS6391134A (en) | 1986-10-03 | 1986-10-03 | Powder granulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23443586A JPS6391134A (en) | 1986-10-03 | 1986-10-03 | Powder granulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6391134A true JPS6391134A (en) | 1988-04-21 |
JPH0464733B2 JPH0464733B2 (en) | 1992-10-15 |
Family
ID=16970961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23443586A Granted JPS6391134A (en) | 1986-10-03 | 1986-10-03 | Powder granulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6391134A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ303196B6 (en) * | 2010-05-25 | 2012-05-23 | Technická univerzita v Liberci, fakulta strojní | Device for pelletizing extruded cylindrical blank |
CZ305544B6 (en) * | 2007-11-21 | 2015-12-02 | Robert Štěpánek | Cylindrical granulating machine |
JP2021151211A (en) * | 2020-03-25 | 2021-09-30 | 日清食品ホールディングス株式会社 | Grain-like granular material and production method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49920U (en) * | 1972-04-05 | 1974-01-07 | ||
JPS5190354A (en) * | 1975-02-07 | 1976-08-07 | NETSUKOKASEIJUSHISEIKEIZAIRYONO SEIZOHO | |
JPS5212680A (en) * | 1975-07-22 | 1977-01-31 | Daiichi Nenryo Kogyo Kk | Briquetting machine |
JPS6210035U (en) * | 1985-07-01 | 1987-01-21 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5635453A (en) * | 1979-08-29 | 1981-04-08 | Mitsubishi Electric Corp | Reverse connection protecting device for mos type ic |
-
1986
- 1986-10-03 JP JP23443586A patent/JPS6391134A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49920U (en) * | 1972-04-05 | 1974-01-07 | ||
JPS5190354A (en) * | 1975-02-07 | 1976-08-07 | NETSUKOKASEIJUSHISEIKEIZAIRYONO SEIZOHO | |
JPS5212680A (en) * | 1975-07-22 | 1977-01-31 | Daiichi Nenryo Kogyo Kk | Briquetting machine |
JPS6210035U (en) * | 1985-07-01 | 1987-01-21 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ305544B6 (en) * | 2007-11-21 | 2015-12-02 | Robert Štěpánek | Cylindrical granulating machine |
CZ303196B6 (en) * | 2010-05-25 | 2012-05-23 | Technická univerzita v Liberci, fakulta strojní | Device for pelletizing extruded cylindrical blank |
JP2021151211A (en) * | 2020-03-25 | 2021-09-30 | 日清食品ホールディングス株式会社 | Grain-like granular material and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH0464733B2 (en) | 1992-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |