JPH0341790Y2 - - Google Patents
Info
- Publication number
- JPH0341790Y2 JPH0341790Y2 JP13228385U JP13228385U JPH0341790Y2 JP H0341790 Y2 JPH0341790 Y2 JP H0341790Y2 JP 13228385 U JP13228385 U JP 13228385U JP 13228385 U JP13228385 U JP 13228385U JP H0341790 Y2 JPH0341790 Y2 JP H0341790Y2
- Authority
- JP
- Japan
- Prior art keywords
- control device
- agitator
- electric motor
- motor
- crusher
- 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
- 238000003756 stirring Methods 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 22
- 238000000227 grinding Methods 0.000 description 14
- 238000010298 pulverizing process Methods 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Description
【考案の詳細な説明】
この考案は粉砕機に関し、特に、メデイアと砕
料とを粉砕容器内で撹拌混合して粉砕を行うメデ
イア撹拌式の粉砕機に関するものである。[Detailed Description of the Invention] This invention relates to a pulverizer, and particularly relates to a media agitation type pulverizer that performs pulverization by stirring and mixing media and pulverized material in a pulverizing container.
回転軸の周囲に撹拌棒を放射状に取付けて構成
されたアジテータにより砕料とメデイアとを粉砕
容器内で撹拌して粉砕するメデイア撹拌式粉砕機
は、たとえば顔料の粉砕等に広く使用されてい
る。 A media agitation type pulverizer, which uses an agitator consisting of stirring rods radially attached around a rotating shaft to agitate and pulverize the granulated material and media in a pulverizing container, is widely used, for example, for pulverizing pigments. .
このような粉砕機では、砕料の粒度や粘度など
によつて粉砕条件が広範に変動するので、この変
動する粉砕条件に従つてアジテータの回転も変化
しうることが望ましい。 In such a pulverizer, the pulverizing conditions vary widely depending on the particle size and viscosity of the pulverized material, so it is desirable that the rotation of the agitator can be changed in accordance with the changing pulverizing conditions.
しかし、従来のこの種の粉砕機ではアジテータ
の駆動用電動機として変速不可能な籠型誘導電動
機や同期電動機が装備されていたため、粉砕容器
内の砕料の量や状態（粘度、粒度）にかかわらず
ほぼ一定の回転速度でアジテータが回転駆動され
ており、従つて砕料の状態に対応する適切な運転
がなされていなかつた。そのため、ある場合には
無駄な電力を消費するばかりでなく、所望の粉砕
物を得ることができないという結果になることも
多かつた。また、アジテータや電動機に過負荷が
かかり、寿命を短かくすることも多かつた。 However, conventional crushers of this type were equipped with cage-type induction motors or synchronous motors that could not be changed in speed as driving motors for the agitator, so regardless of the amount and condition (viscosity, particle size) of the crushed material in the crushing container, The agitator is driven to rotate at a substantially constant rotational speed, and therefore is not operated appropriately in response to the condition of the crushed material. Therefore, in some cases, not only wasted power was consumed, but the desired pulverized product could not be obtained in many cases. Additionally, the agitator and electric motor were often overloaded, shortening their lifespan.
この考案の目的は、前記の如き従来の粉砕機に
存する欠点を持たない新規な粉砕機を提供するこ
とである。更に詳細には、この考案の目的は、砕
料の状態に応じて予め定められた最適条件で運転
することのできる新規な粉砕機を提供することで
ある。 The purpose of this invention is to provide a new grinder that does not have the drawbacks of conventional grinders as mentioned above. More specifically, the purpose of this invention is to provide a new pulverizer that can be operated under predetermined optimal conditions depending on the condition of the pulverized material.
本考案による粉砕機は、アジテータの回転軸を
駆動する駆動系を予め設定された所定の粉砕条件
（たとえば砕料の性質や粒度・粉砕物の粒度、粉
砕容器内の砕料の量、砕料の粘度等のデータ）に
応じて自動的に可変速度制御するように構成した
ことを特徴とするものである。以下の実施例に示
す粉砕機では、アジテータ駆動用電動機の瞬時消
費電力を検出する検出器を設けるとともに該電動
機の速度を制御する電動機制御装置を設け、更
に、予め種々の粉砕条件に応じて設定された消費
電力モデルと該検出器の検出値との差を検出する
とともにその差を零にするように該電動機制御装
置を制御する粉砕機制御装置を設けたことを特徴
とする。 The pulverizer according to the present invention uses a drive system that drives the rotating shaft of the agitator under predetermined pulverization conditions (e.g., the properties and particle size of the pulverized material, the particle size of the pulverized material, the amount of the pulverized material in the grinding container, the amount of the pulverized material, etc.). The invention is characterized in that it is configured to automatically perform variable speed control according to data such as viscosity, etc. The pulverizer shown in the following example is equipped with a detector that detects the instantaneous power consumption of the agitator drive motor, and a motor control device that controls the speed of the motor. The present invention is characterized in that a crusher control device is provided that detects a difference between the calculated power consumption model and the detected value of the detector and controls the motor control device so as to make the difference zero.
本考案の粉砕機では、該電動機をたとえば籠型
誘導電動機とする時には該電動機制御装置を
VVVF（Variable Voltage Variable
Frequency）インバータにすればよく、また、該
電動機を直流分巻電動機とする時には該電動機制
御装置をチヨツパ装置等にすればよい。なお、粉
砕機制御装置とは、予め設定した種々の粉砕条件
に関するデータを内蔵し、該検出器の出力に応じ
て特定の粉砕条件を達成するようにして電動機制
御装置の速度設定を変更する装置であり、たとえ
ばマイクロコンピュータで構成してもよい。 In the crusher of the present invention, when the motor is, for example, a cage-type induction motor, the motor control device is
VVVF (Variable Voltage Variable
If the motor is a DC shunt motor, the motor control device may be a chopper device or the like. Note that the crusher control device is a device that contains data regarding various preset crushing conditions and changes the speed setting of the motor control device to achieve specific crushing conditions according to the output of the detector. For example, it may be configured by a microcomputer.
以下に本考案の一実施例について添附図面を参
照して説明する。１は底付き円筒形の粉砕容器で
あり、該粉砕容器１の側壁部分は二重壁構造にな
つていて内側壁面と外側壁面との間には冷却水ジ
ヤケツト１ａが形成されており、冷却水ジヤケツ
ト１ａに連通する冷却水供給管２と冷却水排出管
３が粉砕容器１の上下に接続されている。 An embodiment of the present invention will be described below with reference to the accompanying drawings. Reference numeral 1 denotes a cylindrical crushing container with a bottom. The side wall portion of the crushing container 1 has a double wall structure, and a cooling water jacket 1a is formed between the inner wall surface and the outer wall surface, and the cooling water jacket 1a is formed between the inner wall surface and the outer wall surface. A cooling water supply pipe 2 and a cooling water discharge pipe 3 communicating with the jacket 1a are connected to the top and bottom of the crushing container 1.
粉砕容器１内には、鉛直な回転軸４ａの周囲か
ら水平方向に突出する多数の撹拌棒４ｂを有した
アジテータ４が挿入されており、回転軸４ａはそ
の上端において電動機５の軸に連結されている。
粉砕容器１内には鋼球や硬質チツプ等のメデイア
ｍと砕料（被粉砕物）Ｓとが投入され、メデイア
ｍと砕料Ｓとはアジテータ４で撹拌されて相互の
摩砕作用によつて砕料Ｓが粉砕される。 An agitator 4 having a large number of stirring rods 4b protruding horizontally from around a vertical rotating shaft 4a is inserted into the crushing container 1, and the rotating shaft 4a is connected to the shaft of an electric motor 5 at its upper end. ing.
A medium m such as steel balls or hard chips and a crushed material (material to be crushed) S are placed in the crushing container 1, and the media m and the crushed material S are agitated by an agitator 4 and are ground by mutual grinding action. The crushed material S is then crushed.
電動機５にはその瞬時消費電力を検出する電力
検出器６が設けられる一方、電動機５の入力端子
側には電動機５の速度を変化させる電動機制御装
置７（もしくは速度制御装置）が接続され、電動
機５は電動機制御装置７から供給される電圧及び
電流に応じて駆動される。 The electric motor 5 is provided with a power detector 6 that detects its instantaneous power consumption, and a motor control device 7 (or speed control device) that changes the speed of the electric motor 5 is connected to the input terminal side of the electric motor 5. 5 is driven according to the voltage and current supplied from the motor control device 7.
電動機制御装置７における速度設定を変更して
種々の粉砕条件を合せて電動機速度を変化させる
ために、記憶機能と演算機能を備えた粉砕機制御
装置８が設けられている。この粉砕機制御装置８
は予め設定された消費電力モデル（すなわち、
種々の粉砕状況における消費電力パターン）を内
蔵し、電力検出器６からの入力と該モデルとを比
較してその偏差を検出しつつ該偏差を零にするよ
うに電動機制御装置７における速度設定を変更す
る。この制御装置８はたとえばICやワンチツプ
マイコン等の電子回路で構成され、砕料のデータ
や粉砕物（粉砕後の砕料）に関するデータを入力
させてそのデータに最適の粉砕条件（アジテータ
速度等）を選択させることができる。 In order to change the speed setting in the motor control device 7 and change the motor speed in accordance with various grinding conditions, a grinder control device 8 having a memory function and a calculation function is provided. This crusher control device 8
is a preset power consumption model (i.e.,
It has a built-in power consumption pattern (power consumption pattern in various grinding situations), compares the input from the power detector 6 with the model, detects the deviation, and adjusts the speed setting in the motor control device 7 so as to reduce the deviation to zero. change. This control device 8 is composed of an electronic circuit such as an IC or a one-chip microcomputer, and inputs data on the crushed material and the crushed material (crushed material after crushing), and sets the optimal crushing conditions (agitator speed, etc.) based on the data. ) can be selected.
前記の如き構成を有する本考案の粉砕機におい
ては、砕料スラリーの濃度、砕料の硬度や粒度及
び重量、最終粉砕物の粒度、粉砕中の砕料のスラ
リーの粘度、等の種々の粉砕条件に応じてアジテ
ータ４の出力、トルク、回転速度、等を自動的に
変化させて粉砕が行われるので、粉砕不足や過粉
砕等が防止できるとともに、粉砕中の粘度増加に
伴うメデイアと撹拌軸との同伴現象や撹拌棒の空
回り、及び砕料の停滞、等の好ましくない現象の
発生を未然に防止することができ、その結果、粉
砕能率の向上と電力消費の節減を達成することが
できる。 The pulverizer of the present invention having the above configuration can handle various types of pulverization, such as the concentration of the pulverized material slurry, the hardness, particle size, and weight of the pulverized material, the particle size of the final pulverized material, and the viscosity of the pulverized material slurry during grinding. Grinding is performed by automatically changing the output, torque, rotational speed, etc. of the agitator 4 according to the conditions, so it is possible to prevent insufficient grinding or over grinding, and it also prevents the media and stirring shaft from increasing in viscosity during grinding. It is possible to prevent the occurrence of undesirable phenomena such as entrainment with the grinder, idle rotation of the stirring rod, and stagnation of the crushed material, and as a result, it is possible to improve crushing efficiency and reduce power consumption. .
すなわち、本考案の粉砕機では、粉砕機制御装
置８に予め入力されている各種データに基いて制
御装置８から電動機制御装置７に与えられる指令
により電動機５が制御される一方、電動機５にお
ける消費電力は電力検出器６によつて常時検出さ
れて、その検出値が粉砕機制御装置８にフイード
バツクされ、制御装置８内に設定されている電力
消費モデルと比較される。制御装置８は電力検出
器６からの入力信号と該モデルとの偏差を零にす
るように演算を行い、電動機制御装置７における
速度設定を変更させ、電動機５をその時の粉砕条
件に最適な出力状態に制御する。 That is, in the crusher of the present invention, the electric motor 5 is controlled by commands given from the control device 8 to the motor control device 7 based on various data inputted in advance to the crusher control device 8. Electric power is constantly detected by a power detector 6, and the detected value is fed back to the crusher control device 8 and compared with a power consumption model set in the control device 8. The control device 8 performs calculations to make the deviation between the input signal from the power detector 6 and the model zero, changes the speed setting in the motor control device 7, and controls the motor 5 to output the optimum output for the grinding conditions at that time. control to the state.
ちなみに、メデイア撹拌型の粉砕機における消
費動力Ｐ（kW）とアジテータの回転数Ｎ（rpm）
との間には
Ｐ＝kN〓（α＝１〜２）
の関係があるので、電動機５の回転数を制御する
ことによりアジテータの消費動力を制御すること
ができる。 By the way, the power consumption P (kW) and the rotation speed N (rpm) of the agitator in a media agitation type crusher
Since there is a relationship of P=kN〓(α=1 to 2), the power consumption of the agitator can be controlled by controlling the rotation speed of the electric motor 5.
以上のように、本考案の粉砕機では、無段階に
可変速制御できる駆動系をアジテータの回転軸に
連結し、情報処理機能を有する電子装置で該駆動
系を制御しつつ該アジテータの消費動力を常時検
出するように構成したので、種々の粉砕条件に応
じてアジテータを常に最適な出力状態で駆動する
ことができ、その結果、粉砕不足や過粉砕を防止
することができるとともに過大な動力消費と粉砕
機における過負荷とを防止して生産能率の向上と
エネルギー節減及び粉砕機の長寿命化などを達成
することができる。 As described above, in the crusher of the present invention, a drive system capable of steplessly variable speed control is connected to the rotating shaft of the agitator, and the power consumption of the agitator is controlled by an electronic device with an information processing function. Since it is configured to constantly detect the agitator, it is possible to always drive the agitator at the optimal output state according to various grinding conditions, and as a result, it is possible to prevent insufficient grinding or over grinding, and to avoid excessive power consumption. It is possible to improve production efficiency, save energy, and extend the life of the crusher by preventing overload on the crusher.
なお、実施例ではアジテータの回転軸と電動機
とを直結した構成のものを示したが、アジテータ
の回転軸と電動機との間に無段変速機を介在させ
て電動機の速度制御とともに該無段変速機による
速度変換を行つてアジテータに低速で大トルクを
発生させるように構成してもよい。 In addition, in the embodiment, a configuration in which the rotating shaft of the agitator and the electric motor are directly connected is shown, but a continuously variable transmission is interposed between the rotating shaft of the agitator and the electric motor to control the speed of the electric motor and the continuously variable transmission. The agitator may be configured to generate a large torque at a low speed by performing speed conversion by the machine.
添付図面は本考案の粉砕機の一実施例を示す全
体図である。
１…粉砕容器、１ａ…冷却水ジヤケツト、２…
冷却水供給管、３…冷却水排出管、４…アジテー
タ、４ａ…回転軸、４ｂ…撹拌棒、５…電動機、
６…電力検出器、７…電動機制御装置、８…粉砕
機制御装置、ｍ…メデイア、Ｓ…砕料。
The accompanying drawing is an overall view showing one embodiment of the crusher of the present invention. 1... Grinding container, 1a... Cooling water jacket, 2...
Cooling water supply pipe, 3... Cooling water discharge pipe, 4... Agitator, 4a... Rotating shaft, 4b... Stirring rod, 5... Electric motor,
6...Power detector, 7...Motor control device, 8...Crusher control device, m...Media, S...Crushing material.
Claims (1)
取付けて構成されたアジテータと、該アジテー
タが挿入されている粉砕容器とを具備して成
り、該粉砕容器内でメデイアと砕料とを該アジ
テータで撹拌混合することによつて該砕料の粉
砕を行うメデイア撹拌式の粉砕機において、該
回転軸の駆動用電動機を速度制御する電動機制
御装置と、該電動機の瞬時消費電力を検出する
電力検出器と、予め設定された消費電力モデル
と該検出器の検出値との差を検出するとともに
該差を零にするように該電動機制御装置を介し
て該駆動用電動機を制御する粉砕機制御装置と
を装備している粉砕機。 ２ 前記電動機制御装置が電圧及び周波数の少な
くとも一方を連続的に変化させる装置であり、
該電動機が交流電動機である実用新案登録請求
の範囲第１項記載の粉砕機。[Claims for Utility Model Registration] 1. An agitator comprising an agitator having stirring rods attached radially in several stages around a rotating shaft, and a crushing container into which the agitator is inserted; In a media agitation type pulverizer that pulverizes the granules by stirring and mixing the media and the granules with the agitator, the pulverizer comprises: a motor control device for controlling the speed of an electric motor for driving the rotating shaft; A power detector detects the instantaneous power consumption of the electric motor, and a power detector detects the difference between a preset power consumption model and the detected value of the detector, and controls the motor control device to reduce the difference to zero. A crusher equipped with a crusher control device that controls a driving electric motor. 2. The motor control device is a device that continuously changes at least one of voltage and frequency,
The crusher according to claim 1, wherein the electric motor is an AC electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13228385U JPH0341790Y2 (en) | 1985-08-29 | 1985-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13228385U JPH0341790Y2 (en) | 1985-08-29 | 1985-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6239838U JPS6239838U (en) | 1987-03-10 |
| JPH0341790Y2 true JPH0341790Y2 (en) | 1991-09-02 |
Family
ID=31031518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13228385U Expired JPH0341790Y2 (en) | 1985-08-29 | 1985-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0341790Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5627923B2 (en) * | 2010-04-27 | 2014-11-19 | アシザワ・ファインテック株式会社 | Wet grinding method for heavy calcium carbonate |
-
1985
- 1985-08-29 JP JP13228385U patent/JPH0341790Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6239838U (en) | 1987-03-10 |
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