JP3835734B2

JP3835734B2 - Powder / liquid continuous kneading equipment

Info

Publication number: JP3835734B2
Application number: JP2000394760A
Authority: JP
Inventors: 雅章中尾
Original assignee: Funken Powtechs Inc
Current assignee: Funken Powtechs Inc
Priority date: 2000-12-26
Filing date: 2000-12-26
Publication date: 2006-10-18
Anticipated expiration: 2020-12-26
Also published as: JP2002191953A

Description

【０００１】
【発明の属する技術分野】
本発明は、粉体と液体とを連続的に混練して定量供給するための粉体・液体連続混練装置に関するものである。
【０００２】
【従来の技術】
今日、化学、薬品、プラスチック、電子、食品、窯業、機械、金属等の産業分野において、各種素材の成形もしくは加工に際して、粉体を取扱うことが不可欠である。このような粉体の取扱いに際しては、その分散、定量供給、成型、工程間輸送などの生産技術上の主要工程において、それぞれ必要な機器ないし装置として、粉体の連続混練装置が知られている。
【０００３】
そこで、従来より、この種の粉体の連続混練装置として、粉体を加湿、スラリー化、懸濁化あるいは乳化させるような場合に、粉体と液体とを連続的に混練して定量供給することができる、粉体・液体連続混練装置が提案され、実用化されている。
【０００４】
本出願人は、先に、この種の連続混練装置として、基盤で覆われた混合室内に回転自在に配置された回転混合盤と、この回転混合盤に連続的に定量供給される粉体に対して液体を噴出するための複数の噴射ノズルと、前記回転混合盤の回転に伴って前記噴射ノズル口を横切るように配置された複数の上面スクレーパと、前記回転混合盤に設けられていて前記混合室の内壁に沿って旋回する側面スクレーパとを備えた構成からなる粉体・液体連続混練装置を開発し、特許を得た（特公昭６３−４３１２７号公報）。
【０００５】
すなわち、前記提案に係る粉体・液体連続混練装置は、基盤で覆われた混合室内で回転している回転混合盤に、連続的に定量供給される粉体に対して、複数の噴射ノズルから少量の液体を噴射させ、前記回転混合盤に設けられていてこの回転混合盤の回転に伴って前記噴射ノズル口を横切るように、しかも前記基盤の内壁面に付着することのある粉体を掻き落すように配置された複数の上面スクレーパと、前記回転混合盤に設けられていて前記混合室の内壁に沿って旋回する側面スクレーパとにより、攪拌混合し、粉体を少量の液体で均一に混練することができることを特徴とするものである。
【０００６】
このように構成される粉体・液体連続混練装置においては、粉体供給筒から定量的に連続供給される粉体は、混合室内で回転している回転混合盤により飛散されて薄膜状態で展開され、この粉体に対して、対称的に配置された噴射ノズルからは少量の液体が噴霧状となって混合室内に噴射されるが、回転混合盤には上面スクレーパおよび側面スクレーパが設けられているため、これらの攪拌効果と前記上面スクレーパが前記噴射ノズル口を横切ることにより、薄膜状態の粉体に噴霧状の液体が均一に分散混合して、従来困難とされた粉体に対する連続的にして均一な混練を実現することが可能となった。
【０００７】
その後、本出願人は、連続的に定量供給される粉体をスラリー化して、動粘性を付与するように構成した粉体・液体連続混練装置を開発し、特許を得た（特公昭６３−４５６１１号公報）。
【０００８】
すなわち、前記提案に係る粉体・液体連続混練装置は、基盤で覆われた混合室と、定量供給装置等に接続され、粉体を連続的に定量供給する供給筒と、前記供給筒から供給される粉体を飛散展開させるための混合室内に配置された回転混合盤と、飛散展開された粉体に対して主液体を環状溢流膜として流下させるために混合室上部中央に配置された逆円錐型の溢流筒（オーバーフローコーン）と、前記飛散展開された粉体に対して更に添加剤等の微量液体を噴射するための複数の噴射ノズルと、前記回転混合盤に設けられてこの回転混合盤の回転に伴って前記噴射ノズル口を横切るように配置された複数の上面スクレーパと、前記回転混合盤に設けられていて前記混合室の内壁に沿って旋回する側面スクレーパと、粉体を中央に集約するために前記混合室の底面に配置された集約翼と、前記混合室の次段に設けられた混練室と、前記混合室から供給される液体と混練された粉体を遠心方向に展開させるために混練室内に配置された回転混練盤と、混練室の上壁に固定された固定混練ピンと、前記回転混練盤に植設された可動混練ピンと、混練された粉体を排出口に排出するために前記回転混練盤に設けられた混練型掻き出し翼とを備えた構成からなる。
【０００９】
このように構成される粉体・液体連続混練装置においては、供給筒から連続的に定量供給される粉体は、混合室内で高速回転している回転混合盤により飛散展開されるが、これに対して給液管から供給される主液体が液室内に至り、オーバーフローした主液体が逆円錐型の溢流筒（オーバーフローコーン）に沿って流下し、更に添加剤等の微量液体が噴射ノズルから噴射される。この時、前記回転混合盤の回転に伴って上面スクレーパが噴射ノズル口を横切って回転すると共に、側面スクレーパが旋回するから、これらの作用により飛散展開される粉体に対して液体が均一に混練される。このようにして、液体と混練された粉体は、混合室の底面に配置された集約翼により集約され、中央の落下口から下段の混練室内に順次供給される。この集約過程において、粉体粒子は混練膨脹するが、混練室内においては、回転混練盤が高速回転しており、前記落下口から供給された粉体は、前記回転混練盤により展開されるが、混練室の上壁には固定混練ピンが、また回転混練盤には可動混練ピンがそれぞれ設けられているため、粉体がこれらのピン間を通過することによる通過剪断力により、スラリー化状態に混練されて混練室の底部に至る。そして、混練室の底部では、混練型掻き出し翼が回転しており、スラリー化された粉体は排出口から排出されることを特徴とするものである。
【００１０】
しかるに、後者の粉体・液体連続混練装置は、前者の粉体・液体連続混練装置と比較し、上下２段に混合室と混練室とを構成配置し、これらの各室に回転混合盤と回転混練盤とをそれぞれ設けて、粉体および液体の混練動作を多段階に行うことにより、混練効果を増大しようとするものである。
【００１１】
【発明が解決しようとする課題】
しかしながら、前記提案に係る多段回転盤方式による粉体・液体連続混練装置においては、縦軸方向に複数の回転盤を軸結合するため、これらの回転盤を回転駆動するための回転軸の長さが比較的長くなると共に、この回転軸の自由端部側に偏ってそれぞれ多大な負荷が掛かる複数の回転盤を取り付けることから、例えば高速回転時などにおいては、回転軸の先端部が軸振れを生じ、異常騒音の発生や回転盤を囲繞するケーシング内壁面との接触による異常磨耗等を発生し、装置寿命を損なう難点がある。
【００１２】
また、前記従来の粉体・液体連続混練装置においては、複数の回転盤を多段構成するに際し、次段との結合部において、上段の回転盤で液体と混合された粉体は、その底部中央に集約させ、下段の回転盤の中央部へ案内するように設定していることから、各回転盤に対する粉体および液体の混合ないし混練領域を十分に通過させることができるが、粉体および液体の混合体の移送ないし流動を円滑にかつ効率良く達成するために、各回転盤に対しそれぞれ多種類のスクレーパないしはガイド部材等を設ける必要がある。このため、装置構成が複雑となるばかりでなく、前述した回転軸の軸振れを誘引し、適正な粉体・液体の連続混練とその定量供給とを達成することができなくなる難点がある。また、装置構成が複雑となることから、製造コストも増大するばかりでなく、メンテナンスおよび運転コストも増大する難点がある。
【００１３】
そこで、本発明者等は、鋭意研究並びに検討を重ねた結果、上段の回転混練盤の外径を、下段の回転混練盤の外周に設けられる混練領域のほぼ半分程度となる小径位置に設定し、しかも上段の回転混練盤によって形成される粉体と液体の混合体を、前記回転混練盤の外周部から直ちに下段の回転混練盤の混練領域に供給されるよう構成することにより、複数の回転盤を同軸に結合した回転軸の高速回転に際して、その軸振れを防止することができると共に、各回転盤の結合部における粉体と液体との混練およびその移送ないし流動化を円滑にかつ効率良く達成するための複雑な装置構成を排除することが可能となり、従って装置構成が簡略化されかつコンパクト化されて製造コストを低減することができるばかりでなく、メンテナンスや運転に要するコストの低減も可能にして、従来装置における難点を一挙に解消することができる粉体・液体連続混練装置が得られることを突き止めた。
【００１４】
すなわち、前記構成によれば、上段における第１の回転混練盤で液体と混練された粉体は、下段における第２の回転混練盤に対しその中央部へ集約させることなく、下段の回転混練盤上の混練領域に直接導入することができるため、粉体と液体との混練およびその移送ないし流動化を円滑にかつ効率良く達成することができ、これにより装置構成を簡略化しかつコンパクト化して製造コストを低減することができる。
【００１５】
従って、本発明の目的は、上下複数段の混練室を設けると共に、これらの混練室内に配置した回転混練盤の高速回転に際し、軸振れを防止することができると共に、各回転混練盤の結合部における粉体と液体との混練およびその移送ないし流動化を円滑にかつ効率良く達成するための構成を簡略化しかつコンパクト化することができ、製造コストを低減し得るばかりでなく、メンテナンスや運転に要するコストの低減も容易に達成することができる粉体・液体連続混練装置を提供することにある。
【００１６】
【課題を解決するための手段】
前記目的を達成するため、本発明に係る粉体・液体連続混練装置は、粉体を連続的に定量供給する粉体供給筒の開口部を囲繞するように液体を環状溢流膜として流下させるオーバーフローコーンを設け、このオーバーフローコーンを第１の基盤上に支持すると共に、この第１の基盤の下方に前記オーバーフローコーンと同心的に上部胴を囲繞配置して第１の混練室を形成し、前記上部胴を第２の基盤上に支持すると共に、この第２の基盤の下方に前記上部胴と同心的かつ上部胴の直径より大径にしてその一側部に排出口を設けた下部胴を囲繞配置して第２の混練室を形成し、前記第１の混練室および第２の混練室内に粉体と液体との混練およびその移送を行うための混練ピンおよびスクレーパをそれぞれ取付けた第１の回転混練盤と第２の回転混練盤とを収納配置してこれらの回転混練盤を回転駆動軸に同軸結合し、前記第１の混練室において液体と混練された粉体を第１の回転混練盤の外周縁部より、第２の混練室内の第２の回転混練盤上の混練領域へ直接導入するように構成配置したことを特徴とする。
【００１８】
この場合、前記第１の混練室に収納配置される第１の回転混練盤は、その上側面に、半径方向に所定間隔離間して複数列に複数の混練ピンをそれぞれ円周方向に所定間隔離間させて突設すると共に、これら複数の混練ピンの上方先端部に前記第１の混練室を形成する第１の基盤の内壁面に近接するように、円周方向複数等分させて上面スクレーパを設け、前記第１の回転混練盤の下側面に、前記上面スクレーパと対応するように掻出羽根を円周方向に等分配置すると共に、前記掻出羽根の隣接する中間部に前記第１の混練室を形成する上部胴の内周壁面に近接するように第１の側面スクレーパを円周方向に等分配置した構成とすることができる。
【００１９】
また、前記第１の混練室に収納配置される第１の回転混練盤の下側面に、前記掻出羽根と隣接させて液体と混練された粉体を、強制的に第２の混練室に収納配置される第２の回転混練盤の混練領域に導入する第２の掻出羽根を円周方向に等分配置することができる。
【００２０】
一方、前記第２の混練室に収納配置される第２の回転混練盤は、その上側面に、半径方向に所定間隔離間して複数列に複数の混練ピンをそれぞれ円周方向に所定間隔離間させて突設し、前記第２の回転混練盤の下側面に、前記第２の混練室を形成する下部胴の内周壁面に近接するように第２の側面スクレーパを円周方向に等分配置すると共に、前記第２の側面スクレーパの隣接する中間部に前記下部胴によって形成された排出室内に突出する混練・排出翼体を円周方向に等分配置した構成とすることができる。
【００２１】
また、前記第２の混練室を形成する第２の基盤の下側面には、前記第２の回転混練盤に突設した混練ピン間にこれらと接触しないように対応する１列もしくは複数列の混練ピンを突設することができる。
【００２２】
さらに、前記第２の混練室を形成する第２の基盤の内周縁部上に、液体と混練された粉体を、強制的に第２の混練室に収納配置される第２の回転混練盤の混練領域に導入する掻込板を円周方向に等分配置することもできる。
【００２３】
この場合、前記第２の混練室を形成する第２の基盤の内周縁部を、第２の回転混練盤の軸心方向に適宜延在させた構成とすることができる。
【００２４】
さらにまた、前記第２の混練室内において排出室を形成する下部胴の内周壁面に、内方へ水平に突出するリング板を設けると共に、前記第２の回転混練盤の下側面に設けた混練・排出翼体の対応部分に嵌合溝を設けた構成とすることができる。
【００２５】
そして、前記第２の回転混練盤の下側面に設ける混練・排出翼体は、１枚の板片からなる翼体または複数の板片をそれぞれ第２の回転混練盤の回転方向に対しそれぞれ角度を変化させて枠体に配置固定した翼体として構成することができる。
【００２６】
なお、前記第２の混練室を形成する下部胴の外周部に熱交換器を設けた構成とすることもできる。
【００２７】
【発明の実施の形態】
次に、本発明に係る粉体・液体連続混練装置の実施例につき、添付図面を参照しながら以下詳細に説明する。
【００２８】
図１ないし図４は、本発明に係る粉体・液体連続混練装置の一実施例を示すものである。すなわち、図１ないし図４において、参照符号１０は粉体定量供給装置等（図示せず）に接続されて所要の粉体を連続的に定量供給する粉体供給筒を示し、この粉体供給筒１０の開口部１０ａには、これを囲繞するようにオーバーフロー液室１１を備え、このオーバーフロー液室１１から所要の液体を環状溢流膜として流下させるオーバーフローコーン１２を設ける。なお、このオーバーフローコーン１２の前記オーバーフロー液室１１には、所要の液体を連続的に供給するための給水パイプ１３が連通接続されている。そして、このオーバーフローコーン１２を、第１の基盤１４上に支持すると共に、この第１の基盤１４の下方に前記オーバーフローコーン１２と同心的に上部胴１６を囲繞配置して第１の混練室１８を形成する。また、前記上部胴１６を第２の基盤２０上に支持すると共に、この第２の基盤２０の下方に前記上部胴１６と同心的かつ上部胴の直径より大径にしてその一側部に排出口（後述する）を設けた下部胴２２を囲繞配置して第２の混練室２４を形成する。
【００２９】
前記第１の混練室１８には、粉体と液体との混練およびその移送を行うための混練ピン（後述する）およびスクレーパ（後述する）をそれぞれ取付けた第１の回転混練盤１９を収納配置する。また、前記第２の混練室２４においても、前記と同様に粉体と液体との混練およびその移送を行うための混練ピン（後述する）およびスクレーパ（後述する）をそれぞれ取付けた第２の回転混練盤２５を収納配置する。そして、これらの第１の回転混練盤１９と第２の回転混練盤２５とは、電動モータ等の回転駆動源（図示せず）に接続されて回転駆動する回転駆動軸２６にそれぞれ同軸結合する。なお、前記第２の混練室２４における第２の回転混練盤２５の下方には、排出室２８を形成すると共に、この排出室２８の一部に液体と混練された粉体を外部に連続的に排出する排出筒２９と連通接続するための排出口２９ａを設ける。
【００３０】
前記第１の混練室１８において、第１の回転混練盤１９の上側面には、半径方向に所定間隔離間して複数列（図示例では３列）に複数の混練ピン３０をそれぞれ円周方向に所定間隔離間させて突設する。このように複数の混練ピン３０を突設した第１の回転混練盤１９の上側面には、円周方向に複数等分（図示例では３等分）して半径方向に延在し、第１の混練室１８を形成する第１の基盤１４の内壁面に近接させて上面スクレーパ３２を、前記混練ピン３０の先端に結合して固定配置する（図１および図３参照）。一方、前記第１の回転混練盤１９の下側面には、前記上面スクレーパ３２と対応するように掻出羽根３３を、前記混練ピン３０の固定端部に結合して固定配置する。また、前記第１の回転混練盤１９の下側面には、円周方向に等分配置された掻出羽根３３の隣接する中間部に、第１の混練室１８を形成する上部胴１６の内周壁面に近接させて第１の側面スクレーパ３４を等分配置して、これを前記混練ピン３０の固定端部に結合して固定する（図１および図３参照）。
【００３１】
また、前記第２の混練室２４において、第２の回転混練盤２５の上側面には、半径方向に所定間隔離間して複数列（図示例では３列）に複数の混練ピン３５をそれぞれ円周方向に所定間隔離間させて突設する（図１および図２参照）。一方、前記第２の混練室２４を形成する第２の基盤２０の内壁面には、前記第２の回転混練盤２５に突設された複数列の混練ピン３５の間に、それぞれ回転移動する混練ピン３５と接触しないように、複数の固定された混練ピン３６（図示例では１列）を円周方向に所定間隔離間させて突設する（図１参照）。そして、前記第２の回転混練盤２５の下側面には、円周方向に複数等分（図示例では３等分）して半径方向に延在し、第２の混練室２４を形成する下部胴２２の内周壁面に近接させて第２の側面スクレーパ３８を等分配置して、これを前記混練ピン３５の固定端部に結合して固定する（図１および図２参照）。また、前記第２の回転混練盤２５の下側面には、円周方向に等分配置された第２の側面スクレーパ３８の隣接する中間部に、前記下部胴２２によって形成された排出室２８内に突設する混練・排出翼体３９を等分配置して、これを前記混練ピン３５の固定端部に結合して固定する（図１、図２および図４参照）。
【００３２】
しかるに、前記構成からなる本実施例の粉体・液体連続混練装置は、前記第１の混練室１８と第２の混練室２４との結合構成において、前記第１の混練室１８において第１の回転混練盤１９の回転駆動により液体と混練された粉体を、前記第１の回転混練盤１９の外周縁部より、前記第２の混練室２４内の第２の回転混練盤２５上の混練領域へ直接導入するように構成配置することを特徴とする。
【００３３】
すなわち、前記第１の回転混練盤１９の外周縁部には、円周方向に複数等分されて第１の側面スクレーパ３４と掻出羽根３３とが交互に配置されているが、前記第２の混練室２４を形成する第２の基盤２０の内周縁部を、前記掻出羽根３３の先端に近い部分で終端するように設定し、前記掻出羽根３３の先端側から掻き出される液体と混練された粉体を、前記第２の混練室２４内の前記第１の回転混練盤１９より上部胴の直径より大径に構成した前記第２の回転混練盤２５上に対し、複数の混練ピン３５を突設した混練領域へ直接かつ円滑に導入するよう構成することができる（図１参照）。
【００３４】
従って、前記第１の混練室１８から前記第２の混練室２４へ液体と混練された粉体の移送を円滑に行うことができ、しかもその混練操作を適正かつ効率的に達成して、前記第２の混練室２４の下方に形成した排出室２８へ導入することができ、しかもこの排出室２８内において前記混練・排出翼体３９により排出筒２９を介して、液体と混練された粉体の連続的な排出を容易に実現することができる。
【００３５】
なお、本実施例の粉体・液体連続混練装置において、前記第２の混練室２４の下方に形成した排出室２８内には、図１に示すように、下部胴２２の内周壁面に内方へ水平に若干突出するリング板４０を設け、一方前記第２の回転混練盤２５の下側面に円周方向に等分配置された混練・排出翼体３９の対応部分に、嵌合溝４１を切設することにより、前記排出室２８内における液体と粉体との混練操作をより一層高めながら排出筒２９へ排出することができる。
【００３６】
また、本実施例の粉体・液体連続混練装置において、前記第２の混練室２４を形成する下部胴２２の外周部には、適宜熱交換器４４を設けて、粉体と液体との混練に際しての吸熱または加熱を行うように構成することができる。
【００３７】
図５の（ａ）〜（ｄ）は、前述した本発明に係る粉体・液体連続混練装置の変形例を示すものである。従って、説明の便宜上、前記図１ないし図４に示す実施例と同一の構成要素については、同一の参照符号を付し、その詳細な説明は省略する。
【００３８】
すなわち、図５の（ａ）〜（ｄ）は、本発明に係る粉体・液体連続混練装置における第１の混練室１８と第２の混練室２４のそれぞれの構成および結合構成についての変形例を示すものである。そこで、図５の（ａ）は、前記第１の混練室１８と第２の混練室２４の要部断面側面図であり、第１の混練室１８と第２の混練室２４の結合部において、第１の回転混練盤１９の下側面においてその外周縁部に、円周方向に複数等分（図示例では３等分）されて第１の側面スクレーパ３４と第１掻出羽根３３とが交互に配置された前記実施例の構成において、前記第１の側面スクレーパ３４と第１掻出羽根３３との中間部に、それぞれ第２掻出羽根３３′を追加配置した構成からなる〔図５の（ａ）、（ｂ）参照〕。
【００３９】
このように、前記第２掻出羽根３３′を追加配置することにより、第１の混練室１８において液体と混練された粉体を、前記第１掻出羽根３３との相互作用によって、第２の混練室２４への掻き出すことのみならず、その強制的な導入をより円滑かつ効率的に達成することができる。
【００４０】
また、本実施例においては、第１の混練室１８を形成する上部胴１６を支持する第２の基盤２０の内周縁部の上側に、第１の混練室１８において液体と混練された粉体を、第２の混練室２４へ円滑に導入するための掻込板３７を、円周方向に複数等分（図示例では３等分）して固定配置したものである〔図５の（ａ）、（ｃ）参照〕。なお、この場合、前記第２の基盤２０の内周縁部の前記掻込板３７を配置した下側に、半径方向に所定間隔離間して複数の混練ピン３６′をそれぞれ円周方向に所定間隔離間させて追加突設する〔図５の（ａ）、（ｄ）参照〕。
【００４１】
このように、前記第２の基盤２０に対し、前記掻込板３７と混練ピン３６′とを追加設定することにより、第１の混練室１８において液体と混練された粉体を、第２の混練室２４の混練領域に直接にかつ円滑に導入させることができる。
【００４２】
また、前記第２の基盤２０については、例えば図６に示すように、その内周縁部２０ａを第２の混練室２４の第２の回転混練盤２５の軸心方向に適宜延在させることにより、第１の混練室１８の第１掻出羽根３３による第２の混練室２４の混練領域への導入通路を延長することができる。これにより、第１の混練室１８における液体と混練された粉体の滞留時間を増大させて、その混練効果をさらに高めることが可能である。そして、この場合、前記延長された前記第２の基盤２０の内周縁部２０ａに対して、混練ピン３６′を追加設定することができるため、第２の混練室２４における液体と混練された粉体の混練効果についても、さらに高めることができる。
【００４３】
図７の（ａ）〜（ｃ）は、前述した本発明に係る粉体・液体連続混練装置における第２の回転混練盤２５の変形例を示すものである。なお、説明の便宜上、前記図１ないし図４に示す実施例と同一の構成要素については、同一の参照符号を付し、その詳細な説明は省略する。
【００４４】
すなわち、図７の（ａ）〜（ｃ）において、第２の回転混練盤２５の上側面には、半径方向に所定間隔離間して複数列（図示例では３列）に複数の混練ピン３５が、それぞれ円周方向に所要間隔離間させて突設されている〔図７の（ａ）参照〕。また、前記第２の回転混練盤２５の上側面には、円周方向に複数等分（図示例では３等分）して半径方向に延在し、第２の混練室２４を形成する第２の基盤２０の内壁面に近接させる上面スクレーパ４２が、前記混練ピン３５の先端に結合して固定配置されている〔図７の（ａ）、（ｃ）参照〕。なお、前記第２の回転混練盤２５の上側面の一部に、第２の混練室２４を形成する下部胴２２の内周壁面に近接させる第２の側面スクレーパ３８ａが固定配置されている。
【００４５】
これに対し、第２の回転混練盤２５の下側面には、円周方向に複数等分（図示例では３等分）して半径方向に延在し、第２の混練室２４を形成する下部胴２２の内周壁面に近接させる第３の側面スクレーパ３８ｂおよび第４の側面スクレーパ３８ｃが所定間隔離間させて等分配置され、これらは前記混練ピン３５の固定端部に結合して固定されている〔図７の（ｂ）参照〕。また、前記第２の回転混練盤２５の下側面には、円周方向にそれぞれ離間して等分配置された第３の側面スクレーパ３８ｂおよび第４の側面スクレーパ３８ｃの離間部分に、前記下部胴２２によって形成された排出室２８内に突設する混練・排出翼体３９が等分配置され、これらは前記混練ピン３５の固定端部に結合して固定されている〔図７の（ｂ）、（ｃ）参照〕。
【００４６】
このように構成された第２の回転混練盤２５を使用することにより、前述した本発明に係る粉体・液体連続混練装置の機能をより有効に発揮させることができる。
【００４７】
図８は、前述した実施例の第２の回転混練盤２５に適用する混練・排出翼体３９の変形例を示すものである。すなわち、図８に示す混練・排出翼体３９′は、前述した１枚の板片からなる翼体３９に代えて、複数の板片をそれぞれ第２の回転混練盤２５の回転方向に対してそれぞれ角度を変化させて枠体に配置固定した構成からなるものであり、このように構成することにより、液体と混練された粉体の混練およびその排出機能をより一層効果的に発揮させることができる。なお、本実施例の混練・排出翼体３９′は、前述した図１に示される混練・排出翼体３９と同様に、下部胴２２の内周壁面に内方へ若干突出するよう設けたリング板４０に対応させて、嵌合溝４１を切設した構成とすることができることは勿論である。
【００４８】
以上、本発明の好適な実施例についてそれぞれ説明したが、本発明は前記実施例に限定されることなく、本発明の精神を逸脱しない範囲内において、多くの設計変更を行うことができる。
【００４９】
【発明の効果】
前述した実施例から明らかな通り、本発明に係る粉体・液体連続混練装置は、粉体を連続的に定量供給する粉体供給筒の開口部を囲繞するように液体を環状溢流膜として流下させるオーバーフローコーンを設け、このオーバーフローコーンを第１の基盤上に支持すると共に、この第１の基盤の下方に前記オーバーフローコーンと同心的に上部胴を囲繞配置して第１の混練室を形成し、前記上部胴を第２の基盤上に支持すると共に、この第２の基盤の下方に前記上部胴と同心的かつ上部胴の直径より大径にしてその一側部に排出口を設けた下部胴を囲繞配置して第２の混練室を形成し、前記第１の混練室および第２の混練室内に粉体と液体との混練およびその移送を行うための混練ピンおよびスクレーパをそれぞれ取付けた第１の回転混練盤と第２の回転混練盤とを収納配置してこれらの回転混練盤を回転駆動軸に同軸結合し、前記第１の混練室において液体と混練された粉体を第１の回転混練盤の外周縁部より、第２の混練室内の第２の回転混練盤上の混練領域へ直接導入するように構成配置したことにより、上下複数段の混練室内にそれぞれ配置した回転混練盤の高速回転に際し、軸振れを防止することができると共に、各回転混練盤の結合部における粉体と液体との混練およびその移送ないし流動化を円滑にかつ効率良く達成するための構成を簡略化しかつコンパクト化することができ、製造コストを低減し得るばかりでなく、メンテナンスや運転に要するコストの低減も容易に達成することができる。
【００５０】
すなわち、本発明の粉体・液体連続混練装置においては、上段における第１の回転混練盤で液体と混練された粉体は、下段における第２の回転混練盤に対しその中央部へ集約させることなく、下段の回転混練盤上の混練領域に直接導入することができるため、粉体と液体との混練およびその移送ないし流動化を円滑にかつ効率良く達成することができ、従来の多段式回転混練盤による粉体・液体連続混練装置の問題点を全て解消することができた。
【００５１】
従って、本発明に係る粉体・液体連続混練装置は、化学分野において、ＰＶＣ重合用添加剤の液化投入、ＰＴＡ製造工程の連続分散、ポリエステル繊維、ＰＥＴ、フィルム製造工程のＰＴＡ・ＥＧ混練、捺染用元糊連続製造、ＳＭＣの連続混練、カーボンブラック造粒工程での連続加湿、ＡＢＳ樹脂連続塊状重合用噴射混合等に有効に利用することができる。また、食品分野においては、小麦粉、米粉、澱粉等の連続加湿／混練、製麺用生地連続加湿、澱粉／蛋白分離用小麦粉連続混練、米菓用生地連続加湿、大豆蛋白造粒用連続加湿、パイ、デニッシュ用ドウ連続混練、ケーキミックス用連続加湿、ビスケットサンド連続混合、餅用生地連続加湿、てんぷら用バッター液の連続製造等に有効に利用することができる。さらに、土木、建材分野においては、地下連続壁用作泥および調泥、泥漿シールド／裏込材連続製造、フライアッシュ連続混練、フライアッシュ連続加湿等に有効に利用することができる。
【図面の簡単な説明】
【図１】本発明に係る粉体・液体連続混練装置の一実施例を示す一部断面側面図である。
【図２】図１に示す粉体・液体連続混練装置のＡ−Ａ要部断面平面図である。
【図３】図１に示す粉体・液体連続混練装置のＢ−Ｂ要部断面平面図である。
【図４】図１に示す粉体・液体連続混練装置のＣ−Ｃ要部断面平面図である。
【図５】（ａ）は図１に示した粉体・液体連続混練装置の変形例を示す要部断面側面図、（ｂ）は（ａ）のＤ−Ｄ要部断面平面図、（ｃ）は（ａ）のＥ−Ｅ要部断面平面図、（ｄ）は（ｃ）のＦ−Ｆ要部断面側面図である。
【図６】本発明に係る粉体・液体連続混練装置の変形例を示す要部断面側面図である。
【図７】本発明に係る粉体・液体連続混練装置の第２の回転混練盤の変形例を示すものであって、（ａ）は第２の回転混練盤の上側面の要部斜視図、（ｂ）は第２の回転混練盤の下側面の要部斜視図、（ｃ）は第２の回転混練盤の要部側面図である。
【図８】本発明における粉体・液体連続混練装置の第２の回転混練盤に設けられる混練・排出翼体の変形例を示す下側面の要部斜視図である。
【符号の説明】
１０粉体供給筒
１０ａ開口部
１１オーバーフロー液室
１２オーバーフローコーン
１３給水パイプ
１４第１の基盤
１６上部胴
１８第１の混練室
１９第１の回転混練盤
２０第２の基盤
２０ａ内周縁部
２２下部胴
２４第２の混練室
２５第２の回転混練盤
２６回転駆動軸
２８排出室
２９排出筒
２９ａ排出口
３０混練ピン
３２上面スクレーパ
３３掻出羽根（第１掻出羽根）
３３′ 第２掻出羽根
３４第１の側面スクレーパ
３５混練ピン（移動）
３６混練ピン（固定）
３６′ 混練ピン（固定）
３７掻込板
３８、３８ａ第２の側面スクレーパ
３８ｂ第３の側面スクレーパ
３８ｃ第４の側面スクレーパ
３９、３９′ 混練・排出翼体
４０リング板
４１嵌合溝
４２上面スクレーパ
４４熱交換装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder / liquid continuous kneading apparatus for continuously kneading powder and liquid and supplying them quantitatively.
[0002]
[Prior art]
Today, it is indispensable to handle powders when molding or processing various materials in industrial fields such as chemicals, chemicals, plastics, electronics, food, ceramics, machinery, and metals. In handling such powder, a continuous powder kneading apparatus is known as a necessary device or apparatus in each major process in production technology such as dispersion, quantitative supply, molding, and transportation between processes. .
[0003]
Therefore, conventionally, as a continuous kneading apparatus of this type of powder, when the powder is humidified, slurried, suspended or emulsified, the powder and liquid are kneaded continuously and quantitatively supplied. A powder / liquid continuous kneader that can be used has been proposed and put into practical use.
[0004]
The applicant of the present invention previously described, as this type of continuous kneading apparatus, a rotary mixing plate that is rotatably arranged in a mixing chamber covered with a base, and a powder that is continuously and quantitatively supplied to the rotary mixing plate. A plurality of spray nozzles for ejecting liquid, a plurality of upper surface scrapers arranged so as to cross the spray nozzle port as the rotary mixing plate rotates, and provided in the rotary mixing plate, A powder / liquid continuous kneading apparatus comprising a side scraper that swirls along the inner wall of the mixing chamber was developed and a patent was obtained (Japanese Patent Publication No. 63-43127).
[0005]
In other words, the powder / liquid continuous kneading apparatus according to the above-mentioned proposal is provided with a plurality of injection nozzles for the powder that is continuously supplied in a fixed quantity to a rotating mixing disc rotating in a mixing chamber covered with a base. A small amount of liquid is ejected, and the powder that is provided on the rotary mixing plate and crosses the injection nozzle port as the rotary mixing plate rotates and scrapes the powder that may adhere to the inner wall surface of the base. A plurality of upper surface scrapers arranged so as to drop, and a side scraper provided on the rotary mixing disc and swirling along the inner wall of the mixing chamber, and agitated and mixed, and the powder was uniformly kneaded with a small amount of liquid It is characterized by being able to.
[0006]
In the powder / liquid continuous kneading apparatus configured as described above, the powder continuously supplied quantitatively from the powder supply cylinder is scattered by the rotating mixing disk rotating in the mixing chamber and developed in a thin film state. With respect to this powder, a small amount of liquid is sprayed from the spray nozzle arranged symmetrically and sprayed into the mixing chamber, but the rotary mixer is provided with an upper surface scraper and a side scraper. Therefore, when the stirring effect and the upper surface scraper cross the injection nozzle port, the sprayed liquid is uniformly dispersed and mixed with the powder in a thin film state, so that it is continuous with the powder which has been difficult in the past. It became possible to achieve uniform kneading.
[0007]
Thereafter, the present applicant developed a powder / liquid continuous kneading apparatus configured to slurry kneaded powder continuously supplied to give kinematic viscosity, and obtained a patent (Japanese Patent Publication No. 63- No. 45611).
[0008]
That is, the powder / liquid continuous kneading apparatus according to the proposal is connected to a mixing chamber covered with a substrate, a supply pipe connected to a fixed-quantity supply apparatus, etc., and supplied from the supply pipe. A rotating mixing board arranged in the mixing chamber for spreading and spreading the powder to be dispersed, and arranged in the upper center of the mixing chamber for allowing the main liquid to flow down as an annular overflow film to the scattered and developed powder An inverted conical overflow cylinder (overflow cone), a plurality of injection nozzles for injecting a trace amount of liquid such as an additive to the scattered and expanded powder, and the rotary mixing disc A plurality of upper surface scrapers arranged so as to cross the injection nozzle port as the rotating mixing plate rotates, a side scraper provided on the rotating mixing plate and swirling along the inner wall of the mixing chamber, and powder To centralize Aggregating blades disposed on the bottom surface of the mixing chamber, a kneading chamber provided in the next stage of the mixing chamber, and kneading to develop the liquid supplied from the mixing chamber and the kneaded powder in the centrifugal direction. A rotary kneading plate disposed in the chamber, a fixed kneading pin fixed to the upper wall of the kneading chamber, a movable kneading pin implanted in the rotary kneading plate, and the above-mentioned for discharging the kneaded powder to the discharge port It comprises a kneading-type scraping blade provided on a rotary kneading board.
[0009]
In the powder / liquid continuous kneading apparatus configured as described above, the powder that is continuously supplied in a constant quantity from the supply cylinder is scattered and developed by the rotating mixing board that rotates at high speed in the mixing chamber. On the other hand, the main liquid supplied from the liquid supply pipe reaches the liquid chamber, the overflowed main liquid flows down along the inverted conical overflow cylinder (overflow cone), and further a trace amount liquid such as an additive from the injection nozzle. Be injected. At this time, as the rotary mixing plate rotates, the upper surface scraper rotates across the injection nozzle port and the side scraper rotates, so that the liquid is uniformly mixed with the powder scattered and developed by these actions. Is done. In this way, the powder and the kneaded powder are collected by the collecting blades arranged on the bottom surface of the mixing chamber, and are sequentially supplied from the central dropping port to the lower kneading chamber. In this aggregation process, the powder particles are kneaded and expanded, but in the kneading chamber, the rotary kneader is rotating at high speed, and the powder supplied from the dropping port is developed by the rotary kneader, A fixed kneading pin is provided on the upper wall of the kneading chamber, and a movable kneading pin is provided on the rotary kneading machine, so that the powder is put into a slurry state by the passing shear force caused by passing between these pins. Kneaded to reach the bottom of the kneading chamber. The kneading-type scraping blade rotates at the bottom of the kneading chamber, and the slurryed powder is discharged from the discharge port.
[0010]
However, the latter powder / liquid continuous kneading apparatus has a mixing chamber and a kneading chamber arranged in two upper and lower stages as compared with the former powder / liquid continuous kneading apparatus. A rotary kneader is provided, and the kneading operation of the powder and liquid is performed in multiple stages to increase the kneading effect.
[0011]
[Problems to be solved by the invention]
However, in the powder / liquid continuous kneading apparatus using the multi-stage rotating disk system according to the above proposal, since a plurality of rotating disks are axially coupled in the vertical axis direction, the length of the rotating shaft for rotationally driving these rotating disks Is attached to a plurality of rotating disks that are biased toward the free end portion of the rotating shaft and are subjected to a large load, so that, for example, at the time of high-speed rotation, the tip end portion of the rotating shaft does not shake. There is a problem that the occurrence of abnormal noise, abnormal wear due to contact with the inner wall surface of the casing surrounding the rotating disk, and the like, impairing the life of the apparatus.
[0012]
Further, in the conventional powder / liquid continuous kneading apparatus, when a plurality of rotating disks are configured in multiple stages, the powder mixed with the liquid in the upper rotating disk at the joint with the next stage is the center of the bottom. And is set so that it is guided to the central part of the lower rotating disk, so that it can sufficiently pass through the mixing or kneading area of the powder and liquid to each rotating disk. In order to smoothly and efficiently achieve the transfer or flow of the mixture, it is necessary to provide various types of scrapers or guide members for each rotating disk. For this reason, not only the apparatus configuration becomes complicated, but also the above-described shaft runout of the rotating shaft is induced, which makes it difficult to achieve proper continuous kneading of powder / liquid and its quantitative supply. In addition, since the apparatus configuration is complicated, not only the manufacturing cost increases, but also the maintenance and operation costs increase.
[0013]
Therefore, as a result of extensive research and investigations, the present inventors set the outer diameter of the upper rotary kneader to a small diameter position that is approximately half the kneading area provided on the outer periphery of the lower rotary kneader. In addition, the mixture of the powder and liquid formed by the upper rotary kneader is configured to be supplied to the kneading region of the lower rotary kneader immediately from the outer periphery of the rotary kneader, thereby allowing a plurality of rotations. It is possible to prevent the shaft run-out during high-speed rotation of the rotating shaft with the disks connected coaxially, and to smoothly and efficiently knead and transfer or fluidize the powder and liquid at the connecting portion of each rotating disk. It is possible to eliminate the complicated device configuration to achieve, thus simplifying and compacting the device configuration and reducing manufacturing costs as well as maintenance and operation Thereby enabling the cost reduction necessary, we have found that a powder-liquid continuous kneading apparatus which can solve at once difficulties in the conventional apparatus can be obtained.
[0014]
That is, according to the above configuration, First in The powder kneaded with the liquid in the rotary kneader Second in Since it can be directly introduced into the kneading zone on the lower rotary kneader without concentrating it on the center of the rotary kneader, the mixing and transfer or fluidization of the powder and liquid is smooth and efficient. This can be achieved well, thereby simplifying and downsizing the device configuration and reducing manufacturing costs.
[0015]
Accordingly, an object of the present invention is to provide a plurality of upper and lower kneading chambers and to prevent shaft runout during high-speed rotation of the rotary kneaders disposed in these kneading chambers, The structure for achieving smooth and efficient kneading and transfer or fluidization of powder and liquid in can be simplified and made compact, which not only reduces manufacturing costs, but also allows maintenance and operation. An object of the present invention is to provide a powder / liquid continuous kneading apparatus that can easily achieve a reduction in cost.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the powder / liquid continuous kneading apparatus according to the present invention comprises: An overflow cone is provided for allowing the liquid to flow down as an annular overflow film so as to surround the opening of the powder supply cylinder for continuously supplying the powder, and this overflow cone is supported on the first base. A first kneading chamber is formed by concentrically placing the upper cylinder below the first base and concentrically with the overflow cone, and supports the upper cylinder on the second base. A second kneading chamber is formed by disposing a lower cylinder concentric with the upper cylinder below and having a diameter larger than the diameter of the upper cylinder and having a discharge port on one side thereof to form a second kneading chamber. And a first rotary kneading plate and a second rotary kneading plate, each having a kneading pin and a scraper for kneading and transferring the powder and liquid and transferring them in the second kneading chamber. Coaxial connection of rotary kneader to rotary drive shaft Then, the powder kneaded with the liquid in the first kneading chamber is directly introduced from the outer peripheral edge of the first rotary kneading disk into the kneading region on the second rotary kneading disk in the second kneading chamber. It is characterized by being arranged in .
[0018]
In this case, the first rotary kneading disk accommodated in the first kneading chamber has a plurality of rows of kneading pins spaced apart at predetermined intervals in the radial direction on the upper side thereof, and each of the plurality of kneading pins being spaced at predetermined intervals in the circumferential direction The upper surface scraper is provided so as to be spaced apart and divided into a plurality of portions in the circumferential direction so as to be close to the inner wall surface of the first base that forms the first kneading chamber at the upper end of the plurality of kneading pins. The scraper blades are equally arranged in the circumferential direction so as to correspond to the upper surface scraper on the lower surface of the first rotary kneading board, and the first intermediate portion is adjacent to the scraper blades. The first side scraper can be arranged equally in the circumferential direction so as to be close to the inner peripheral wall surface of the upper barrel forming the kneading chamber.
[0019]
Further, the powder kneaded with the liquid adjacent to the scraping blade is forced to the second kneading chamber on the lower surface of the first rotary kneading plate accommodated in the first kneading chamber. The second scraping blades to be introduced into the kneading region of the second rotary kneading machine stored and arranged can be equally arranged in the circumferential direction.
[0020]
On the other hand, the second rotary kneading plate accommodated in the second kneading chamber has a plurality of rows of kneading pins spaced apart from each other by a predetermined interval in the circumferential direction on the upper side thereof with a predetermined spacing in the radial direction. The second side scraper is equally divided in the circumferential direction so as to protrude from the lower side surface of the second rotary kneading plate and to be close to the inner peripheral wall surface of the lower barrel forming the second kneading chamber. In addition, the kneading and discharging blades protruding into the discharge chamber formed by the lower body may be equally arranged in the circumferential direction at the adjacent intermediate portion of the second side scraper.
[0021]
In addition, on the lower surface of the second base forming the second kneading chamber, a corresponding row or rows of kneading pins protruding from the second rotary kneading plate are provided so as not to come into contact with them. A kneading pin can be projected.
[0022]
Further, a second rotary kneading machine in which the powder kneaded with the liquid is forcibly accommodated in the second kneading chamber on the inner peripheral edge of the second base forming the second kneading chamber. It is also possible to equally arrange the scraping plates introduced into the kneading region in the circumferential direction.
[0023]
In this case, the inner peripheral edge portion of the second base forming the second kneading chamber may be appropriately extended in the axial direction of the second rotary kneading disc.
[0024]
Furthermore, a ring plate that protrudes inward horizontally is provided on the inner peripheral wall surface of the lower barrel forming the discharge chamber in the second kneading chamber, and the kneading provided on the lower surface of the second rotary kneading plate. -It can be set as the structure which provided the fitting groove in the corresponding part of the discharge blade body.
[0025]
The kneading / discharging wing body provided on the lower surface of the second rotary kneading board is a wing body comprising a single plate piece or a plurality of wing bodies Board As a wing body arranged and fixed to the frame body by changing the angle with respect to the rotation direction of the second rotary kneader. Constitute be able to.
[0026]
In addition, it can also be set as the structure which provided the heat exchanger in the outer peripheral part of the lower cylinder which forms the said 2nd kneading | mixing chamber.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the powder / liquid continuous kneading apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.
[0028]
1 to 4 show an embodiment of a powder / liquid continuous kneading apparatus according to the present invention. That is, in FIG. 1 to FIG. 4, reference numeral 10 indicates a powder supply cylinder connected to a powder quantitative supply device or the like (not shown) to continuously supply a predetermined powder, and this powder supply The opening 10a of the cylinder 10 is provided with an overflow liquid chamber 11 so as to surround it, and an overflow cone 12 is provided for allowing a required liquid to flow down from the overflow liquid chamber 11 as an annular overflow film. The overflow liquid chamber 11 of the overflow cone 12 is connected to a water supply pipe 13 for continuously supplying a required liquid. The overflow cone 12 is supported on the first base 14, and the upper body 16 is concentrically disposed below the first base 14 and concentrically with the overflow cone 12. Form. In addition, the upper body 16 is supported on the second base 20, and concentrically with the upper body 16 below the second base 20. Larger than the diameter of the upper trunk Then, a second kneading chamber 24 is formed by surrounding a lower body 22 provided with a discharge port (described later) on one side thereof.
[0029]
The first kneading chamber 18 accommodates and arranges a first rotary kneader 19 to which kneading pins (described later) and scrapers (described later) for kneading and transferring powder and liquid are respectively attached. To do. Also in the second kneading chamber 24, as described above, a second rotation with a kneading pin (described later) and a scraper (described later) for kneading and transferring the powder and liquid, respectively, is performed. The kneading board 25 is stored and arranged. The first rotary kneading board 19 and the second rotary kneading board 25 are coaxially coupled to a rotary drive shaft 26 that is connected to a rotary drive source (not shown) such as an electric motor and rotates. . A discharge chamber 28 is formed below the second rotary kneading plate 25 in the second kneading chamber 24, and the powder kneaded with the liquid in a part of the discharge chamber 28 is continuously exposed to the outside. A discharge port 29a for communicating with the discharge cylinder 29 for discharging is provided.
[0030]
In the first kneading chamber 18, a plurality of kneading pins 30 are arranged in the circumferential direction on a top surface of the first rotary kneading board 19 in a plurality of rows (three rows in the illustrated example) with a predetermined spacing in the radial direction. And projecting at a predetermined interval. In this way, the upper surface of the first rotary kneading board 19 provided with a plurality of kneading pins 30 is divided into a plurality of equal parts in the circumferential direction (three equal parts in the illustrated example) and extends in the radial direction. An upper surface scraper 32 is connected to the tip of the kneading pin 30 so as to be close to the inner wall surface of the first base 14 forming one kneading chamber 18 (see FIGS. 1 and 3). On the other hand, on the lower surface of the first rotary kneading board 19, a scraping blade 33 is fixedly disposed in association with the fixed end of the kneading pin 30 so as to correspond to the upper surface scraper 32. Further, on the lower side surface of the first rotary kneading board 19, an inner portion of the upper drum 16 forming the first kneading chamber 18 is formed in an adjacent intermediate portion of the scraping blades 33 equally arranged in the circumferential direction. The first side scraper 34 is equally arranged close to the peripheral wall surface, and this is joined and fixed to the fixed end of the kneading pin 30 (see FIGS. 1 and 3).
[0031]
Further, in the second kneading chamber 24, a plurality of kneading pins 35 are circularly arranged in a plurality of rows (three rows in the illustrated example) on the upper surface of the second rotary kneading plate 25 with a predetermined spacing in the radial direction. It protrudes at predetermined intervals in the circumferential direction (see FIGS. 1 and 2). On the other hand, on the inner wall surface of the second base 20 that forms the second kneading chamber 24, each of the kneading pins 35 projecting from the second rotary kneading board 25 is rotated and moved. A plurality of fixed kneading pins 36 (one row in the illustrated example) are provided so as to be spaced apart from each other by a predetermined distance in the circumferential direction so as not to contact the kneading pins 35 (see FIG. 1). A lower part forming a second kneading chamber 24 is formed on the lower side surface of the second rotary kneading plate 25 in the circumferential direction and extending in the radial direction. A second side scraper 38 is equally arranged close to the inner peripheral wall surface of the barrel 22, and this is joined and fixed to the fixed end of the kneading pin 35 (see FIGS. 1 and 2). In addition, on the lower side surface of the second rotary kneading board 25, in the discharge chamber 28 formed by the lower body 22 in the intermediate portion adjacent to the second side scraper 38 equally divided in the circumferential direction. The kneading / discharging wings 39 projecting from each other are arranged in equal parts, and this is coupled and fixed to the fixed end of the kneading pin 35 (see FIGS. 1, 2 and 4).
[0032]
However, the powder / liquid continuous kneading apparatus of the present embodiment having the above-described configuration has a first configuration in the first kneading chamber 18 in the combined configuration of the first kneading chamber 18 and the second kneading chamber 24. The powder kneaded with the liquid by the rotational drive of the rotary kneader 19 is kneaded from the outer peripheral edge of the first rotary kneader 19 on the second rotary kneader 25 in the second kneading chamber 24. It is characterized by being arranged so as to be directly introduced into the area.
[0033]
That is, a plurality of first side scrapers 34 and scraping blades 33 are alternately arranged on the outer peripheral edge of the first rotary kneading board 19 in the circumferential direction. The inner peripheral edge of the second base 20 forming the kneading chamber 24 is set so as to terminate at a portion close to the tip of the scraping blade 33, and the liquid scraped from the tip side of the scraping blade 33 The kneaded powder is fed from the first rotary kneader 19 in the second kneading chamber 24. Larger than the diameter of the upper trunk A plurality of kneading pins 35 can be directly and smoothly introduced onto the second rotary kneading board 25 configured as described above (see FIG. 1).
[0034]
Therefore, it is possible to smoothly transfer the powder kneaded with the liquid from the first kneading chamber 18 to the second kneading chamber 24, and to achieve the kneading operation appropriately and efficiently, Powder that can be introduced into the discharge chamber 28 formed below the second kneading chamber 24 and is kneaded with the liquid in the discharge chamber 28 via the discharge cylinder 29 by the kneading / discharge blade body 39. Can be easily discharged continuously.
[0035]
In the powder / liquid continuous kneading apparatus of the present embodiment, the discharge chamber 28 formed below the second kneading chamber 24 has an inner wall surface of the lower barrel 22 as shown in FIG. A ring plate 40 that slightly protrudes horizontally is provided, and on the other hand, a fitting groove 41 is formed in a corresponding portion of the kneading / discharging vane body 39 that is equally divided in the circumferential direction on the lower surface of the second rotary kneading plate 25. Can be discharged to the discharge tube 29 while further improving the kneading operation of the liquid and powder in the discharge chamber 28.
[0036]
Further, in the powder / liquid continuous kneading apparatus of the present embodiment, a heat exchanger 44 is appropriately provided on the outer peripheral portion of the lower barrel 22 forming the second kneading chamber 24 to knead the powder and liquid. In this case, the heat absorption or heating can be performed.
[0037]
(A)-(d) of FIG. 5 shows the modification of the powder / liquid continuous kneading apparatus based on this invention mentioned above. Therefore, for convenience of explanation, the same components as those in the embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0038]
That is, (a) to (d) of FIG. 5 are modified examples of the configurations and the coupling configurations of the first kneading chamber 18 and the second kneading chamber 24 in the powder / liquid continuous kneading apparatus according to the present invention. Is shown. Therefore, FIG. 5A is a cross-sectional side view of an essential part of the first kneading chamber 18 and the second kneading chamber 24, and in the joint portion between the first kneading chamber 18 and the second kneading chamber 24. The first side scraper 34 and the first scraping blade 33 are divided into a plurality of portions in the circumferential direction on the lower side surface of the first rotary kneading board 19 in the circumferential direction (three equal portions in the illustrated example). In the configuration of the embodiment arranged alternately, a second scraping blade 33 ′ is additionally disposed at an intermediate portion between the first side scraper 34 and the first scraping blade 33 [FIG. Of (a) and (b)].
[0039]
In this way, by additionally disposing the second scraping blade 33 ′, the powder kneaded with the liquid in the first kneading chamber 18 is allowed to move to the second by the interaction with the first scraping blade 33. In addition to scraping into the kneading chamber 24, the forced introduction can be achieved more smoothly and efficiently.
[0040]
Further, in this embodiment, the powder kneaded with the liquid in the first kneading chamber 18 above the inner peripheral edge of the second base 20 that supports the upper body 16 forming the first kneading chamber 18. 5 is fixedly arranged by dividing the scraper plate 37 for smoothly introducing the second kneading chamber into the second kneading chamber 24 by dividing it into a plurality of equal parts in the circumferential direction (three equal parts in the illustrated example). ), See (c)]. In this case, a plurality of kneading pins 36 ′ are spaced apart at predetermined intervals in the circumferential direction at predetermined intervals in the radial direction on the lower side of the inner peripheral edge of the second base 20 where the scraping plates 37 are disposed. Additional protrusions are provided apart from each other (see FIGS. 5A and 5D).
[0041]
In this manner, by adding the setting plate 37 and the kneading pin 36 ′ to the second base 20, the powder kneaded with the liquid in the first kneading chamber 18 is changed to the second base 20. It can be directly and smoothly introduced into the kneading region of the kneading chamber 24.
[0042]
For the second base 20, for example, as shown in FIG. 6, the inner peripheral edge 20a is appropriately extended in the axial direction of the second rotary kneading disc 25 of the second kneading chamber 24. The introduction path to the kneading region of the second kneading chamber 24 by the first scraping blade 33 of the first kneading chamber 18 can be extended. Thereby, the residence time of the powder kneaded with the liquid in the first kneading chamber 18 can be increased, and the kneading effect can be further enhanced. In this case, since the kneading pin 36 ′ can be additionally set with respect to the inner peripheral edge portion 20 a of the extended second base 20, the powder kneaded with the liquid in the second kneading chamber 24. The kneading effect of the body can be further enhanced.
[0043]
(A)-(c) of FIG. 7 shows the modification of the 2nd rotary kneading board 25 in the powder-liquid continuous kneading apparatus based on this invention mentioned above. For convenience of explanation, the same components as those in the embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0044]
That is, in FIGS. 7A to 7C, on the upper surface of the second rotary kneading board 25, a plurality of kneading pins 35 are arranged in a plurality of rows (three rows in the illustrated example) with a predetermined spacing in the radial direction. Are protruded from each other at a required interval in the circumferential direction (see FIG. 7A). Further, a second kneading chamber 24 is formed on the upper side surface of the second rotary kneading board 25 by extending in the radial direction by dividing it into a plurality of equal parts in the circumferential direction (three equal parts in the illustrated example). An upper surface scraper 42 to be brought close to the inner wall surface of the second base 20 is fixedly disposed so as to be coupled to the tip of the kneading pin 35 (see FIGS. 7A and 7C). In addition, a second side scraper 38 a that is brought close to the inner peripheral wall surface of the lower barrel 22 that forms the second kneading chamber 24 is fixedly disposed on a part of the upper side surface of the second rotary kneading board 25.
[0045]
On the other hand, a second kneading chamber 24 is formed on the lower side surface of the second rotary kneading board 25 by dividing it into a plurality of equal parts in the circumferential direction (three equal parts in the illustrated example) and extending in the radial direction. A third side scraper 38b and a fourth side scraper 38c that are close to the inner peripheral wall surface of the lower barrel 22 are equally spaced apart from each other, and these are fixedly coupled to the fixed end of the kneading pin 35. [Refer to FIG. 7 (b)]. In addition, on the lower side surface of the second rotary kneading board 25, the lower barrel is disposed in the space between the third side surface scraper 38b and the fourth side surface scraper 38c that are equally spaced apart from each other in the circumferential direction. A kneading / discharging wing body 39 projecting into the discharge chamber 28 formed by 22 is equally arranged, and these are fixedly coupled to the fixed end of the kneading pin 35 [(b) of FIG. 7]. (See (c)).
[0046]
By using the second rotary kneading board 25 configured in this way, the function of the powder / liquid continuous kneading apparatus according to the present invention described above can be exhibited more effectively.
[0047]
FIG. 8 shows a modification of the kneading / discharging blade body 39 applied to the second rotary kneading board 25 of the above-described embodiment. That is, the kneading / discharging blade body 39 ′ shown in FIG. 8 replaces the blade body 39 made of one plate piece as described above with a plurality of plate pieces in the rotational direction of the second rotary kneading board 25. Each of them is configured to be arranged and fixed to the frame body by changing the angle, and by configuring in this way, the kneading of the powder kneaded with the liquid and its discharging function can be more effectively exhibited. it can. The kneading / discharging wing body 39 ′ of this embodiment is a ring provided so as to slightly protrude inward on the inner peripheral wall surface of the lower body 22, similarly to the kneading / discharging wing body 39 shown in FIG. 1 described above. Needless to say, the fitting groove 41 can be cut in correspondence with the plate 40.
[0048]
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and many design changes can be made without departing from the spirit of the present invention.
[0049]
【The invention's effect】
As is apparent from the above-described embodiments, the powder / liquid continuous kneading apparatus according to the present invention uses the liquid as an annular overflow film so as to surround the opening of the powder supply cylinder that continuously and quantitatively supplies the powder. An overflow cone is provided to flow down, and the overflow cone is supported on the first base, and the upper body is disposed concentrically with the overflow cone below the first base to form a first kneading chamber. And supporting the upper body on the second base, and being concentric with the upper body below the second base and Larger than the diameter of the upper trunk And forming a second kneading chamber by surrounding a lower body having a discharge port on one side thereof, and kneading the powder and liquid in the first kneading chamber and the second kneading chamber and A first rotary kneading board and a second rotary kneading board, each having a kneading pin and a scraper for transferring, are housed and arranged, and these rotary kneading boards are coaxially coupled to a rotary drive shaft. By arranging and arranging the powder kneaded with the liquid in the kneading chamber directly from the outer peripheral edge of the first rotary kneading disk to the kneading region on the second rotary kneading disk in the second kneading chamber. In addition, it is possible to prevent shaft run-out during high-speed rotation of the rotary kneaders disposed in the upper and lower multi-stage kneading chambers, and to knead and transfer or fluidize the powder and liquid at the joint of each rotary kneader. To achieve smooth and efficient Forming a can be simplified and compact, not only can reduce the manufacturing cost, can be easily achieved a reduction in cost of maintenance and operation.
[0050]
That is, in the powder / liquid continuous kneading apparatus of the present invention, the upper stage First in The powder kneaded with the liquid in the rotary kneader Second in Since it can be directly introduced into the kneading zone on the lower rotary kneader without concentrating it on the center of the rotary kneader, the mixing and transfer or fluidization of the powder and liquid is smooth and efficient. This could be achieved well, and all the problems of the conventional powder / liquid continuous kneading apparatus using the multistage rotary kneader could be solved.
[0051]
Therefore, the powder / liquid continuous kneading apparatus according to the present invention is used in the chemical field for the liquefaction of the PVC polymerization additive, continuous dispersion in the PTA production process, polyester fiber, PET, PTA / EG kneading in the film production process, textile printing. For example, it can be effectively used for continuous production of original paste, continuous kneading of SMC, continuous humidification in the carbon black granulation step, injection mixing for continuous bulk polymerization of ABS resin, and the like. In the food field, continuous humidification / kneading of wheat flour, rice flour, starch, etc., continuous humidification of dough for noodle making, continuous kneading of flour for starch / protein separation, continuous humidification of dough for rice confectionery, continuous humidification for soybean protein granulation, It can be effectively used for continuous kneading of pie, Danish dough, continuous humidification for cake mix, continuous mixing of biscuit sand, continuous humidification of koji dough, continuous production of batter liquid for tempura, and the like. Further, in the civil engineering and building materials fields, it can be effectively used for mud and conditioning for underground continuous wall, continuous production of mud shield / backing material, continuous kneading of fly ash, continuous humidification of fly ash, and the like.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional side view showing an embodiment of a powder / liquid continuous kneading apparatus according to the present invention.
2 is a cross-sectional plan view of the main part AA of the powder / liquid continuous kneading apparatus shown in FIG. 1. FIG.
3 is a cross-sectional plan view of an essential part of the powder / liquid continuous kneading apparatus shown in FIG.
4 is a cross-sectional plan view of an essential part of CC of the powder / liquid continuous kneading apparatus shown in FIG. 1. FIG.
5A is a cross-sectional side view of an essential part showing a modification of the powder / liquid continuous kneading apparatus shown in FIG. 1, FIG. 5B is a cross-sectional plan view of an essential part of DD in FIG. ) Is a cross-sectional plan view of the EE main part of (a), and (d) is a cross-sectional side view of the FF main part of (c).
FIG. 6 is a cross-sectional side view of an essential part showing a modification of the powder / liquid continuous kneading apparatus according to the present invention.
FIG. 7 shows a modification of the second rotary kneading plate of the powder / liquid continuous kneading apparatus according to the present invention, in which (a) is a perspective view of the main part of the upper surface of the second rotary kneading plate. (B) is a principal part perspective view of the lower surface of a 2nd rotation kneading board, (c) is a principal part side view of a 2nd rotation kneading board.
FIG. 8 is a perspective view of the main part of the lower surface showing a modification of the kneading / discharging blade body provided in the second rotary kneading plate of the powder / liquid continuous kneading apparatus in the present invention.
[Explanation of symbols]
10 Powder supply cylinder
10a opening
11 Overflow chamber
12 Overflow cone
13 Water supply pipe
14 First base
16 Upper trunk
18 First kneading chamber
19 First rotary kneader
20 Second base
20a Inner peripheral edge
22 Lower trunk
24 Second kneading chamber
25 Second rotary kneader
26 Rotary drive shaft
28 discharge chamber
29 Discharge tube
29a outlet
30 Kneading pin
32 Top scraper
33 raking blade (first raking blade)
33 'second scraped blade
34 First side scraper
35 Kneading pin (moving)
36 Kneading pin (fixed)
36 'kneading pin (fixed)
37 Scratch plate
38, 38a Second side scraper
38b Third side scraper
38c Fourth side scraper
39, 39 'Kneading and discharging blade
40 Ring plate
41 Fitting groove
42 Top scraper
44 heat exchanger

Claims

An overflow cone for allowing the liquid to flow down as an annular overflow film is provided so as to surround the opening of the powder supply cylinder that continuously supplies the powder, and the overflow cone is supported on the first base. A first kneading chamber is formed by concentrically placing the upper cylinder below the first base and concentrically with the overflow cone, and supports the upper cylinder on the second base. A second kneading chamber is formed by disposing a lower cylinder concentric with the upper cylinder below and having a diameter larger than the diameter of the upper cylinder and having a discharge port on one side thereof to form a second kneading chamber. And a first rotary kneading board and a second rotary kneading board, each having a kneading pin and a scraper for kneading and transferring the powder and liquid and transferring them in the second kneading chamber. Coaxial connection of rotary kneader to rotary drive shaft Then, the powder kneaded with the liquid in the first kneading chamber is directly introduced from the outer peripheral edge of the first rotary kneading disk into the kneading region on the second rotary kneading disk in the second kneading chamber. A powder / liquid continuous kneading apparatus characterized by being arranged in

The first rotary kneading plate housed in the first kneading chamber has a plurality of rows of kneading pins spaced apart at predetermined intervals in the circumferential direction on the upper side thereof with a predetermined spacing in the radial direction. Protruding and providing an upper surface scraper that is divided into a plurality of portions in the circumferential direction so as to be close to the inner wall surface of the first base that forms the first kneading chamber at the upper end of the plurality of kneading pins, On the lower surface of the first rotary kneader, scraping blades are equally arranged in the circumferential direction so as to correspond to the upper surface scraper, and the first kneading chamber is located in an intermediate portion adjacent to the scraping blades. 2. The powder / liquid continuous kneading apparatus according to claim 1, wherein the first side scraper is equally divided in the circumferential direction so as to be close to the inner peripheral wall surface of the upper body forming the upper shell.

The powder kneaded with the liquid adjacent to the scraping blade is forcibly accommodated in the second kneading chamber on the lower surface of the first rotary kneading plate accommodated in the first kneading chamber. The powder / liquid continuous kneading apparatus according to claim 1 or 2, wherein the second scraping blades to be introduced into the kneading region of the second rotary kneading machine are equally arranged in the circumferential direction.

The second rotary kneading plate housed in the second kneading chamber has a plurality of rows of kneading pins spaced apart from each other by a predetermined distance in the circumferential direction on the upper side thereof with a predetermined spacing in the radial direction. A second side scraper is provided in the circumferential direction so as to protrude from the lower side surface of the second rotary kneading plate so as to be close to the inner peripheral wall surface of the lower body forming the second kneading chamber. with the powder-in said kneading and discharging wing member projecting discharge chamber formed by the lower cylinder formed by equally circumferentially disposed claim 1, wherein in said intermediate portion adjacent the second side scrapers Liquid continuous kneading equipment.

One or more rows of kneading pins corresponding to the lower surface of the second base forming the second kneading chamber so as not to contact between the kneading pins protruding from the second rotary kneading disc. The powder / liquid continuous kneading apparatus according to claim 1 or 4, wherein the apparatus is provided with a protrusion.

Kneading of a second rotary kneading machine in which the powder kneaded with the liquid is forcibly housed and arranged in the second kneading chamber on the inner peripheral edge of the second base forming the second kneading chamber. The powder / liquid continuous kneading apparatus according to claim 1, 4 or 5, wherein the scraping plates introduced into the region are equally arranged in the circumferential direction.

The powder / liquid continuous kneading apparatus according to claim 6 , wherein an inner peripheral edge portion of the second base forming the second kneading chamber is extended in the axial direction of the second rotary kneading disc.

In the second kneading chamber, a ring plate that protrudes horizontally inward is provided on the inner peripheral wall surface of the lower body forming the discharge chamber, and the kneading / discharge blade provided on the lower surface of the second rotary kneading plate The powder / liquid continuous kneading apparatus according to claim 1 or 4 , wherein a fitting groove is provided in a corresponding part of the body.

The kneading / discharging blade body provided on the lower surface of the second rotary kneader changes the angle of the blade body or the plurality of plate pieces with respect to the rotation direction of the second rotary kneader, respectively. The powder / liquid continuous kneading apparatus according to claim 1, 4, or 8 , wherein the powder / liquid continuous kneading apparatus is configured as a wing body arranged and fixed to a frame body.

The powder / liquid continuous kneading apparatus according to any one of claims 1 to 9 , wherein a heat exchanger is provided on an outer periphery of a lower body forming the second kneading chamber.