JP2016010756A - Slurry dispersion system - Google Patents

Slurry dispersion system Download PDF

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JP2016010756A
JP2016010756A JP2014133279A JP2014133279A JP2016010756A JP 2016010756 A JP2016010756 A JP 2016010756A JP 2014133279 A JP2014133279 A JP 2014133279A JP 2014133279 A JP2014133279 A JP 2014133279A JP 2016010756 A JP2016010756 A JP 2016010756A
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storage tank
mixture
sent
slurry
dispersion
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JP6388501B2 (en
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竹中　正司
Masaji Takenaka
正司 竹中
峰幸 関本
Mineyuki Sekimoto
峰幸 関本
淳 坂口
Atsushi Sakaguchi
淳 坂口
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Shibuya Corp
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Shibuya Kogyo Co Ltd
Shibuya Machinery Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To form a slurry with high quality by dispersing powder into a fluid.SOLUTION: A binder solution fluid and aluminium oxide are supplied to a storage tank 8, a solvent is fed from a solvent tank 2, and the solvent is agitated and mixed in the storage tank 8. The mixture is supplied to a dispersion device 10, and is dispersed and fed to a circulation pipe path 12. The circulation pipe path 12 is connected to the storage tank 8, and the mixture dispersed on the dispersion device 10 is returned thereto. A branched pipe path 16 is connected to the circulation pipe path 12, and a reservation tank 14 is connected to the branched pipe path 16, and a channel can be switched by channel switching means having a pair of valves 18, 20. Cooling means 22 is provided between an outlet 10a side of the dispersion device 10 and the branch part of the branched pipe path 16, on the circulation pipe path 12, and the mixture is cooled and circulated, or cooled and fed to the reservation tank 14.

Description

本発明は、粉体を液体に分散させてスラリー化するスラリー分散システムに関するものである。   The present invention relates to a slurry dispersion system in which powder is dispersed in a liquid to form a slurry.

酸化アルミニウム（アルミナ）等の粉体を液体に分散させてスラリー化する発明はすでに知られている（例えば、特許文献1参照）。この特許文献１には、複数の混合及び分散装置により構成される混合設備１が開示されている。この混合設備１では、成分を溶解させるのに用いられる液体が液体供給部５から第１の混合及び分散装置２に供給され、同時に、固体の成分、すなわちバインダが、別の供給部７から調量装置８を介して供給され、第１の混合及び分散装置２に導入され、この第１の混合及び分散装置２において、第１の混合プロセスが連続的に実施される。   An invention in which a powder such as aluminum oxide (alumina) is dispersed in a liquid to form a slurry is already known (see, for example, Patent Document 1). This Patent Document 1 discloses a mixing facility 1 constituted by a plurality of mixing and dispersing apparatuses. In this mixing facility 1, the liquid used to dissolve the components is supplied from the liquid supply unit 5 to the first mixing and dispersing device 2, and at the same time, a solid component, that is, a binder is prepared from another supply unit 7. The first mixing and dispersing device 2 is fed through the metering device 8 and introduced into the first mixing and dispersing device 2, and the first mixing process is carried out continuously.

第１の混合プロセスにおいて生じた混合物は、緩衝又は中間貯蔵容器１２に送られ、攪拌工具１３により混合状態を維持して第２の混合及び分散装置３に供給される。この第２の混合及び分散装置３には、固形の成分のための供給部７から活性材料及び導電性材料が供給され、第１の混合及び分散装置２の混合結果物と再び集中的に混合される。   The mixture generated in the first mixing process is sent to the buffer or intermediate storage container 12 and is supplied to the second mixing and dispersing apparatus 3 while maintaining the mixing state by the stirring tool 13. The second mixing and dispersing apparatus 3 is supplied with the active material and the conductive material from the supply unit 7 for the solid components, and is intensively mixed with the mixing result of the first mixing and dispersing apparatus 2 again. Is done.

特表２０１４−５０９０５７号公報Special table 2014-509057 gazette

前記特許文献１に記載された発明では、複数の混合及び分散装置を有し、先ず、第１の混合及び分散装置に液体とバインダを供給して混合プロセスを行った後、この混合物を第２の混合及び分散装置に供給し、さらに、この第２の混合及び分散装置に固体成分を供給して再び混合プロセスを行う。また、第３の混合及び分散装置に混合物を送って混合させることも記載されている。このような特許文献１に記載された発明の構成では、十分な分散化を行い完全にスラリー化することは困難である。また、複数の分散装置を介して連続的に分散化を行うと、混合物の温度が上昇しバインダ等が変質してしまうおそれがある。   The invention described in Patent Document 1 has a plurality of mixing and dispersing apparatuses. First, a liquid and a binder are supplied to the first mixing and dispersing apparatus to perform a mixing process, and then the mixture is added to the second mixing and dispersing apparatus. Then, the solid component is supplied to the second mixing and dispersing apparatus, and the mixing process is performed again. It also describes sending the mixture to a third mixing and dispersing device for mixing. With the configuration of the invention described in Patent Document 1, it is difficult to perform sufficient dispersion and complete slurry. Moreover, when it disperse | distributes continuously via a some dispersing apparatus, there exists a possibility that the temperature of a mixture may rise and a binder etc. may change in quality.

本発明は、粉体を液体に分散させてスラリー化するスラリー分散システムにおいて、粉体と液体を混合させた混合物を収容する収容タンクと、収容タンクから供給される混合物を攪拌して送り出す分散装置と、分散装置から送り出された混合物を収容タンクに戻す循環管路と、循環管路から分岐して貯留タンクに接続される分岐管路と、分散装置から送り出された混合物を収容タンクと貯留タンクのいずれかに流通させる流路切替手段と、分散装置から循環管路における分岐管路の分岐点までの間に配置されて循環管路を流通する混合物を冷却する冷却手段とを備え、分散装置から送り出された混合物を冷却手段で冷却しつつ循環管路で循環させて粉体を液体に分散させた後、流路切替手段を切り替えて分散装置から送り出された混合物を冷却手段で冷却しつつ貯留タンクに送ることを特徴とするものである。   The present invention relates to a slurry dispersion system that disperses powder in liquid to form a slurry, a storage tank that stores a mixture in which powder and liquid are mixed, and a dispersion device that stirs and sends the mixture supplied from the storage tank A circulation line for returning the mixture sent from the dispersing device to the storage tank, a branch line branched from the circulation pipe and connected to the storage tank, and the mixture sent from the dispersing device for the storage tank and the storage tank Dispersion apparatus comprising: a flow path switching means that circulates in any of the above; and a cooling means that cools the mixture that is disposed between the dispersion apparatus and the branching point of the branch pipe in the circulation pipe and flows through the circulation pipe. The mixture sent out from the circulator is circulated in the circulation line while being cooled by the cooling means to disperse the powder in the liquid, and then the flow path switching means is switched to cool the mixture sent out from the dispersing device. It is characterized in that sending to the storage tank while cooling with means.

また、第２の発明は、前記第１の発明において、流路切替手段を切り替えて分散装置から送り出された混合物を貯留タンクに送る際は、冷却手段による冷却温度を収容タンクに戻す場合よりも低くすることを特徴とするものである。   In addition, in the second invention, in the first invention, when the flow path switching means is switched and the mixture sent from the dispersing device is sent to the storage tank, the cooling temperature by the cooling means is returned to the storage tank. It is characterized by lowering.

さらに、第３の発明は、前記第１の発明または第２の発明において、流路切替手段を切り替えて分散装置から送り出された混合物を貯留タンクに送る際は、分散装置からの送出流量を収容タンクに戻す場合よりも低くすることを特徴とするものである。   Furthermore, in the first invention or the second invention, the third invention accommodates the delivery flow rate from the dispersing device when the flow path switching means is switched and the mixture sent from the dispersing device is sent to the storage tank. It is characterized by being lower than when returning to the tank.

また、第４の発明は、前記第２の発明または第３の発明において、冷却手段から貯留タンクに送られる混合物の温度を検出する温度検出手段を備え、混合物が所定温度以下に冷却されない場合は、流路切替手段を切り替えて収容タンクに戻すことを特徴とするものである。   According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the apparatus includes temperature detection means for detecting the temperature of the mixture sent from the cooling means to the storage tank, and the mixture is not cooled below a predetermined temperature. The flow path switching means is switched back to the storage tank.

また、第５の発明は、前記第１の発明ないし第４の発明において、粉体が酸化アルミニウム粉末であることを特徴とするものである。   The fifth invention is characterized in that, in the first to fourth inventions, the powder is an aluminum oxide powder.

本発明のスラリー分散システムは、粉体と液体を混合させた混合物を収容する収容タンクと、収容タンクから供給される混合物を攪拌して送り出す分散装置とを循環管路を介して接続し、混合物を循環させるようにしたので、分散装置で繰り返し分散化を行うことができるので、高品質なスラリーを生産することが可能である。しかも、循環管路に冷却手段を設けているので、分散装置を繰り返し通過しても混合物の温度の上昇を抑制することができ、バインダ等の変質を防止することができる。   The slurry dispersion system of the present invention connects a storage tank that stores a mixture of powder and liquid, and a dispersion device that stirs and sends out the mixture supplied from the storage tank via a circulation pipe. Since it is made to circulate, it can disperse | distribute repeatedly with a dispersion device, Therefore It is possible to produce a high quality slurry. In addition, since the cooling means is provided in the circulation pipe line, the temperature rise of the mixture can be suppressed even when it repeatedly passes through the dispersing device, and alteration of the binder and the like can be prevented.

図１はスラリー分散システムの全体の構成を簡略化して示す構成図である。（実施例１）FIG. 1 is a schematic diagram showing the overall configuration of the slurry dispersion system. (Example 1)

収容タンクに溶剤タンクから溶媒を送り込み、この溶媒に酸化アルミニウム粉末を供給して攪拌するとともに、この収容タンクにバインダ溶解液を供給し、攪拌して混合し混合物を生成する。この混合物を、ステータとロータを有する分散装置に供給し、ロータの回転によってこれらステータとロータの間隙を通過する混合物を分散しスラリー化する。分散された混合物は、循環管路を介して前記収容タンクに還流させ、再び分散装置に供給して分散化を行う。このようにして混合物を循環させて分散装置による分散化を繰り返し行う。循環管路には冷却手段が設けられており、分散化された混合物は循環管路を通過することにより冷却される。また、収容タンクにはジャケットが装着されて冷却水が導入されるようになっており、これらジャケットと冷却手段によって循環管路を循環するスラリーの温度を制御する。   The solvent is fed into the storage tank from the solvent tank, and the aluminum oxide powder is supplied to the solvent and stirred. At the same time, the binder solution is supplied to the storage tank and stirred to mix to form a mixture. This mixture is supplied to a dispersing device having a stator and a rotor, and the mixture passing through the gap between the stator and the rotor is dispersed and slurried by rotation of the rotor. The dispersed mixture is refluxed to the storage tank via a circulation line, and supplied again to the dispersing device to be dispersed. In this way, the mixture is circulated and the dispersion by the dispersion apparatus is repeated. The circulation line is provided with a cooling means, and the dispersed mixture is cooled by passing through the circulation line. A jacket is attached to the storage tank so that cooling water is introduced, and the temperature of the slurry circulating through the circulation pipe is controlled by the jacket and the cooling means.

循環管路の冷却手段よりも下流側に分岐管路が接続されており、この分岐管路に貯留タンクが連結されている。循環管路と分岐管路との分岐部に、分岐手段としての一対のバルブを設け、一方のバルブを開放するとともに他方のバルブを閉じて、循環管路と分岐管路のいずれかに混合物を送るようになっている。循環管路により混合物を循環させ、前記分散装置で繰り返し分散させてスラリー状態になった混合物を、分岐管路から貯留タンクに送液する。循環管路のクーラーよりも下流側で混合物の温度を検知している温度センサによって、循環している混合物の温度を管理しており、循環時は４０℃以下に制御し、分岐管路から貯留タンクに送液する際には、その後の工程で常温処理を行うので、２５℃以下に制御する。貯留タンクに送液する混合物の温度が２５℃以下になっていないときには、分岐部のバルブを切り替えて、循環管路から収容タンクへ還流させる。   A branch pipe is connected to the downstream side of the cooling means of the circulation pipe, and a storage tank is connected to the branch pipe. A pair of valves as a branching means is provided at a branch portion between the circulation pipeline and the branch pipeline, one valve is opened and the other valve is closed, and the mixture is placed in either the circulation pipeline or the branch pipeline. To send. The mixture is circulated through the circulation line, and the mixture, which is repeatedly dispersed by the dispersing device and turned into a slurry state, is sent from the branch line to the storage tank. The temperature of the mixture is controlled by a temperature sensor that detects the temperature of the mixture downstream from the cooler of the circulation line. During circulation, the temperature of the mixture is controlled to 40 ° C or less and stored from the branch line. When liquid is fed to the tank, it is controlled at 25 ° C. or lower because normal temperature processing is performed in the subsequent steps. When the temperature of the mixture fed to the storage tank is not lower than 25 ° C., the branch valve is switched to recirculate from the circulation line to the storage tank.

以下、図面に示す実施例により本発明を説明する。このスラリー分散システムは（全体として符号１で示す）は、溶剤タンク２からポンプ４により送り出された溶媒が、第１流量計６により自動計量されて収容タンク８へ送液される。この収容タンク８には、送液された溶媒に粉体（この実施例では酸化アルミニウム粉末）が供給されて撹拌された後、バインダ溶解液が供給されて混合される。この粉末とバインダ溶解液との混合物を分散装置１０に供給する。分散装置１０では、収容タンク８から送られてきた混合物を、攪拌し分散させて送り出す。分散装置１０の出口１０ａは、循環管路１２を介して前記収容タンク８に接続されており、攪拌して分散させた混合物を収容タンク８に戻して攪拌した後、再度、分散装置１０に送って混合物を攪拌し分散させてスラリー化する。この循環管路１２にはポンプ等の混合物の送り手段を備えておらず、分散装置１０から送り出された力で循環管路１２を循環させるようになっている。   Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. In this slurry dispersion system (indicated by reference numeral 1 as a whole), the solvent fed from the solvent tank 2 by the pump 4 is automatically metered by the first flow meter 6 and fed to the storage tank 8. In this storage tank 8, powder (aluminum oxide powder in this embodiment) is supplied to the supplied solvent and stirred, and then a binder solution is supplied and mixed. A mixture of the powder and the binder solution is supplied to the dispersing device 10. In the dispersing device 10, the mixture sent from the storage tank 8 is stirred, dispersed, and sent out. The outlet 10a of the dispersing device 10 is connected to the storage tank 8 via the circulation line 12, and the mixture stirred and dispersed is returned to the storage tank 8 and stirred, and then sent to the dispersing device 10 again. The mixture is stirred and dispersed to form a slurry. The circulation line 12 is not provided with a feeding means for the mixture such as a pump, and the circulation line 12 is circulated by the force sent from the dispersing device 10.

循環管路１２の途中から分岐して貯留タンク１４に接続される分岐管路１６が設けられている。循環管路１２と分岐管路１６との接続部に、流路切替手段としての一対のバルブ１８、２０が設けられており、これらバルブ１８、２０の開閉により、混合物を分散装置１０から循環管路１２および収容タンク８を通して循環させることができ、また、バルブ１８、２０を切り替えることにより、収容タンク８および分散装置１０へ循環させず、貯留タンク１４へ送り出すことができる。循環管路１２の、分散装置１０の出口１０ａから分岐管路１６への分岐部の間に冷却手段２２が設けられており、この冷却手段２２によって混合物を冷却しつつ循環させ、また、冷却手段２２によって冷却しつつ貯留タンク１４へ送り出すことができる。この循環管路１２の流量は、第２流量計２３により計測されており、この実施例では、分散装置１０から送り出された混合物を、貯留タンク１４へ送る際は、収容タンク８へ戻すときよりも流量を小さくしている。   A branch pipe 16 is provided which branches from the middle of the circulation pipe 12 and is connected to the storage tank 14. A pair of valves 18 and 20 as flow path switching means are provided at a connection portion between the circulation line 12 and the branch line 16. By opening and closing these valves 18 and 20, the mixture is supplied from the dispersion device 10 to the circulation line. It can be circulated through the passage 12 and the storage tank 8, and can be sent out to the storage tank 14 without being circulated to the storage tank 8 and the dispersing device 10 by switching the valves 18 and 20. Cooling means 22 is provided between the branch portion of the circulation line 12 from the outlet 10a of the dispersing device 10 to the branch line 16, and the cooling means 22 circulates the mixture while cooling it. It can be sent out to the storage tank 14 while being cooled by 22. The flow rate of the circulation line 12 is measured by the second flow meter 23. In this embodiment, when the mixture sent from the dispersing device 10 is sent to the storage tank 14, it is returned from the return to the storage tank 8. The flow rate is also reduced.

収容タンク８には、固体成分としての酸化アルミニウム（アルミナ）の粉末を供給するアルミナ供給部２４と、バインダ溶解液を供給するバインダ供給部２６が設けられており、これらの供給部２４、２６から、それぞれ酸化アルミニウムおよびバインダ溶解液が供給される。また、この収容タンク８の内部に攪拌翼２８が配置されており、モータ３０の駆動軸３２に連結されて回転され、この収容タンク８内に溶剤タンクから送られてきた溶媒に酸化アルミニウム粉末を供給して撹拌した後、バインダ溶解液を供給する。さらに、収容タンク８の外面には、ジャケット３４が装着されており、冷水供給源３６からこのジャケット３４内に冷水を供給することができる。収容タンク８内の温度を計測する温度計３８が設けられており、この温度計３８による計測値に応じて、冷水供給配管４０のバルブ４２を調整してジャケット３４に供給する冷却水の量を調整して、収容タンク８内の混合物の温度を調節することができる。このジャケット３４には、供給された冷却水を排出する排出管４４が接続されている。   The storage tank 8 is provided with an alumina supply unit 24 for supplying aluminum oxide (alumina) powder as a solid component, and a binder supply unit 26 for supplying a binder solution, from these supply units 24 and 26. , Aluminum oxide and binder solution are respectively supplied. Further, a stirring blade 28 is disposed inside the storage tank 8, and is connected to the drive shaft 32 of the motor 30 and rotated, and aluminum oxide powder is applied to the solvent sent from the solvent tank into the storage tank 8. After supplying and stirring, a binder solution is supplied. Furthermore, a jacket 34 is attached to the outer surface of the storage tank 8, and cold water can be supplied into the jacket 34 from a cold water supply source 36. A thermometer 38 for measuring the temperature in the storage tank 8 is provided, and the amount of cooling water supplied to the jacket 34 by adjusting the valve 42 of the chilled water supply pipe 40 according to the measured value by the thermometer 38 is provided. By adjusting, the temperature of the mixture in the storage tank 8 can be adjusted. A discharge pipe 44 that discharges the supplied cooling water is connected to the jacket 34.

また、収容タンク８には、その内部を洗浄する洗浄手段が設けられている。この洗浄手段は、前記溶剤タンク２からの溶媒供給配管４６に、分岐して接続された洗浄流路４８と、この洗浄流路４８の先端に取り付けられ、収容タンク８の内部に配置されたシャワーボウル５０を備えている。通常運転時には、溶媒供給配管４６に設けられたバルブ５２を開放するとともに、洗浄流路４８のバルブ５４を閉鎖して収容タンク８に溶媒を供給する。一方、収容タンク８内の洗浄を行う際には、溶媒供給配管４６に設けられたバルブ５２を閉鎖するとともに、洗浄流路４８のバルブ５４を開放してシャワーボウル５０に洗浄液を送る。   The storage tank 8 is provided with cleaning means for cleaning the inside. This cleaning means includes a cleaning flow path 48 that is branched and connected to the solvent supply pipe 46 from the solvent tank 2, and a shower that is attached to the front end of the cleaning flow path 48 and disposed inside the storage tank 8. A bowl 50 is provided. During normal operation, the valve 52 provided in the solvent supply pipe 46 is opened, and the valve 54 of the cleaning channel 48 is closed to supply the solvent to the storage tank 8. On the other hand, when cleaning the storage tank 8, the valve 52 provided in the solvent supply pipe 46 is closed and the valve 54 of the cleaning channel 48 is opened to send the cleaning liquid to the shower bowl 50.

収容タンク８から供給される混合物を分散して送り出す分散装置１０は、上側に下向きで配置されたステータ５６と、このステータ５６の下方に配置され、ステータ５６の内部空間に小さい間隙を隔てて嵌合しているロータ５８を備えており、モータ６０の駆動によりロータ５８を回転させつつ、ステータ５６とロータ５８との間の間隙を混合物を通過させることにより混合物の分散を行ってスラリー化する。ロータ５８の回転により出口１０ａから混合物を送り出す推進力が発生され、モータ６０の回転を制御することにより出口１０ａからの送出流量を調節することができる。   A dispersing device 10 that disperses and feeds the mixture supplied from the storage tank 8 is disposed below the stator 56 and is disposed below the stator 56, and is fitted into the internal space of the stator 56 with a small gap therebetween. The rotor 58 is connected, and the rotor 58 is rotated by driving the motor 60, and the mixture is dispersed by passing the mixture through the gap between the stator 56 and the rotor 58 to form a slurry. The propulsive force for sending the mixture from the outlet 10 a is generated by the rotation of the rotor 58, and the delivery flow rate from the outlet 10 a can be adjusted by controlling the rotation of the motor 60.

冷却手段２２には、冷水供給源６２から冷水が供給できるようになっており、冷水によって循環管路１２を通過する混合物を冷却した後、この冷水は排出管６４から排出される。この冷却手段２２によって冷却されて循環管路１２を流れる混合物の温度を検出する温度検出手段６６が設けられている。この温度検出手段６６による検出値によって、図示しない制御手段が冷水供給用のバルブ６８の開度を制御して循環管路１２を流れる混合物の温度を制御する。   The cooling means 22 can be supplied with cold water from a cold water supply source 62, and after cooling the mixture passing through the circulation pipe 12 with the cold water, the cold water is discharged from the discharge pipe 64. Temperature detection means 66 for detecting the temperature of the mixture cooled by the cooling means 22 and flowing through the circulation pipe 12 is provided. A control means (not shown) controls the temperature of the mixture flowing through the circulation pipe 12 by controlling the opening degree of the cold water supply valve 68 based on the detected value by the temperature detecting means 66.

貯留タンク１４は、内部に攪拌翼７０が設置されており、モータ７２の駆動によってこの攪拌翼７０を回転させることにより、次の工程に送るために貯留している混合物の分散状態を維持する。この貯留タンク１４には、内部を吸引する吸引手段７４が設けられており、貯留タンク１４内の真空引きを行うことにより、混合物の泡を除去する。また、貯留タンク１４内の圧力を検出する圧力検出手段７６が設けられており、この圧力検出手段７６の検出値によって貯留タンク１４内の圧力を制御している。この貯留タンク１４に供給管７８が接続されており、ポンプ８０によって貯留タンク１４から送り出された混合物を塗布工程等の次の工程に送る。   The storage tank 14 has a stirring blade 70 installed therein, and rotates the stirring blade 70 by driving the motor 72 to maintain the dispersion state of the mixture stored for sending to the next step. The storage tank 14 is provided with suction means 74 for sucking the inside thereof, and the bubbles in the mixture are removed by evacuating the storage tank 14. In addition, pressure detection means 76 for detecting the pressure in the storage tank 14 is provided, and the pressure in the storage tank 14 is controlled by the detection value of the pressure detection means 76. A supply pipe 78 is connected to the storage tank 14, and the mixture sent out from the storage tank 14 by the pump 80 is sent to the next step such as a coating step.

以上の構成に係るスラリー分散システムの作動について説明する。溶剤タンク２内の溶媒が、ポンプ４の駆動により溶剤供給配管４６を通って収容タンク８へ送られる。このときには、第１流量計６による自動計量送液が行われる。溶媒が送られた収容タンク８には、アルミナ供給部２４から酸化アルミニウム粉末が供給され、撹拌翼２８の回転によって撹拌され、さらにバインダ供給部２６からバインダ溶解液が供給されて混合される。収容タンク８には、冷水が供給されるジャケット３４が装着されており、温度計３８により混合物の温度を検出しつつ温度管理を行う。   The operation of the slurry dispersion system according to the above configuration will be described. The solvent in the solvent tank 2 is sent to the storage tank 8 through the solvent supply pipe 46 by driving the pump 4. At this time, automatic metered liquid feeding by the first flow meter 6 is performed. The storage tank 8 to which the solvent is sent is supplied with the aluminum oxide powder from the alumina supply unit 24, is stirred by the rotation of the stirring blade 28, and is further supplied and mixed with the binder solution from the binder supply unit 26. The storage tank 8 is equipped with a jacket 34 to which cold water is supplied, and performs temperature management while detecting the temperature of the mixture by a thermometer 38.

収容タンク８内で攪拌され混合された混合物は、分散装置１０へ送られ、ステータ５６とモータ５８の回転によりこのステータ５６内で回転するロータ５８との間隙を通過することにより分散される。分散されスラリー化した混合物は、分散装置１０の出口１０ａから送り出されて循環管路１２を通って収容タンク８に還流する。収容タンク８に還流した混合物は再び攪拌された後、分散装置１０に送られて分散され、循環管路１２に送られる。この循環流量は第２流量計２３により管理されている。   The mixture stirred and mixed in the storage tank 8 is sent to the dispersing device 10 and is dispersed by passing through the gap between the stator 56 and the rotor 58 rotating in the stator 56 by the rotation of the motor 58. The dispersed and slurried mixture is sent out from the outlet 10 a of the dispersing device 10 and returns to the storage tank 8 through the circulation line 12. The mixture refluxed to the storage tank 8 is stirred again, and then sent to the dispersing device 10 to be dispersed and sent to the circulation line 12. This circulating flow rate is managed by the second flow meter 23.

循環管路１２には冷却手段２２が設けられており、循環管路１２を流れるスラリー化された混合物を冷却する。この実施例に係るスラリー分散システムでは、混合物が分散装置１０の高速回転するロータ５８とステータ５６との間の間隙を通過して分散されるので、混合物の温度が次第に上昇して、混合物の成分が変質するおそれがあるため、冷却手段２２によって冷却して所定以下の温度にコントロールする。この実施例では、循環時の混合物の温度を４０度以下に抑えることによりバインダの性質が変化することを防止している。なお、循環する混合物の温度の制御は、この冷却手段２２と前記収容タンク８のジャケット３４により行われる。   The circulation line 12 is provided with a cooling means 22 for cooling the slurry mixture flowing in the circulation line 12. In the slurry dispersion system according to this embodiment, since the mixture is dispersed through the gap between the rotor 58 and the stator 56 that rotate at high speed of the dispersion device 10, the temperature of the mixture gradually increases, and the components of the mixture are increased. Therefore, it is cooled by the cooling means 22 and controlled to a predetermined temperature or lower. In this embodiment, the binder properties are prevented from changing by suppressing the temperature of the mixture during circulation to 40 degrees or less. The temperature of the circulating mixture is controlled by the cooling means 22 and the jacket 34 of the storage tank 8.

分散装置１０による分散を繰り返しながら循環させることにより混合物を高分散化してスラリー状にした後、この混合物を貯留タンク１４へ送液する。その時には、分岐手段の一対のバルブ１８、２０を切り替えて、循環管路１２の収容タンク８側のバルブ１８を閉じるとともに、分岐管路１６のバルブ２０を開放する。この状態で分散装置１０から循環管路１２に送り出された混合物を冷却手段２２で冷却して分岐管路１６から貯留タンク１４へ送液する。貯留タンク１４に送液する混合物は、その後送られる次の工程では常温での作業が行われるので、循環させながら冷却手段２２で２５度以下に冷却して送る。なお、このときの分散装置１０からの送出流量を収容タンク８に戻す場合よりも低くしてロータ５８の回転速度を低下させ、混合物の温度上昇を抑えるようにしている。また冷却手段２２で冷却した後の循環管路１２内の混合物の温度が２５度以上の時には、分岐手段の両バルブ１８、２０を切り替えて、貯留タンク１４へ送らずに収容タンク８へ還流させる。なお、流路切替手段としては、一対のバルブ１８、２０に代えて、循環管路１２に分岐管路１６が接続される分岐点に三方弁を設けてもよい。   The mixture is highly dispersed by making it circulate while repeating dispersion by the dispersion device 10 to form a slurry, and then the mixture is fed to the storage tank 14. At that time, the pair of valves 18 and 20 of the branching means are switched to close the valve 18 on the storage tank 8 side of the circulation pipe 12 and open the valve 20 of the branch pipe 16. In this state, the mixture sent from the dispersing device 10 to the circulation pipe 12 is cooled by the cooling means 22 and sent from the branch pipe 16 to the storage tank 14. Since the mixture sent to the storage tank 14 is operated at room temperature in the next process to be sent thereafter, it is cooled to 25 degrees or less by the cooling means 22 while being circulated and sent. In addition, the rotational flow rate of the rotor 58 is reduced by lowering the delivery flow rate from the dispersing device 10 at this time than when returning to the storage tank 8, and the temperature rise of the mixture is suppressed. When the temperature of the mixture in the circulation pipe 12 after being cooled by the cooling means 22 is 25 ° C. or more, both the valves 18 and 20 of the branching means are switched and returned to the storage tank 8 without being sent to the storage tank 14. . As the flow path switching means, a three-way valve may be provided at a branch point where the branch line 16 is connected to the circulation line 12 instead of the pair of valves 18 and 20.

貯留タンク１４へ送液された混合物は、次の工程に送られる間、攪拌翼７０の回転によって攪拌されて高分散状態を維持される。また、吸引手段７４によって吸引されて混合物の泡が除去される。その後、貯留タンク１４内の混合物を次の工程に送る際には、ポンプ８０を駆動して供給管７８から塗布工程等の次の工程へ送る。   The mixture sent to the storage tank 14 is agitated by the rotation of the agitating blade 70 and maintained in a highly dispersed state while being sent to the next step. Further, the bubbles of the mixture are removed by being sucked by the suction means 74. Thereafter, when the mixture in the storage tank 14 is sent to the next step, the pump 80 is driven and sent from the supply pipe 78 to the next step such as a coating step.

８ 収容タンク
１０ 分散装置
１２ 循環管路
１４ 貯留タンク
１６ 分岐管路
１８ 流路切替手段（バルブ）
２０ 流路切替手段（バルブ）
２２ 冷却手段
8 Storage tank 10 Dispersing device 12 Circulation line 14 Storage tank 16 Branch line 18 Flow path switching means (valve)
20 Channel switching means (valve)
22 Cooling means

Claims (5)

粉体を液体に分散させてスラリー化するスラリー分散システムにおいて、
粉体と液体を混合させた混合物を収容する収容タンクと、収容タンクから供給される混合物を攪拌して送り出す分散装置と、分散装置から送り出された混合物を収容タンクに戻す循環管路と、循環管路から分岐して貯留タンクに接続される分岐管路と、分散装置から送り出された混合物を収容タンクと貯留タンクのいずれかに流通させる流路切替手段と、分散装置から循環管路における分岐管路の分岐点までの間に配置されて循環管路を流通する混合物を冷却する冷却手段とを備え、
分散装置から送り出された混合物を冷却手段で冷却しつつ循環管路で循環させて粉体を液体に分散させた後、流路切替手段を切り替えて分散装置から送り出された混合物を冷却手段で冷却しつつ貯留タンクに送ることを特徴とするスラリー分散システム。 In a slurry dispersion system in which powder is dispersed in a liquid to form a slurry,
A storage tank that contains a mixture of powder and liquid, a dispersion device that stirs and sends the mixture supplied from the storage tank, a circulation line that returns the mixture sent from the dispersion device to the storage tank, and a circulation A branch pipe branched from the pipe and connected to the storage tank, a flow switching means for circulating the mixture fed from the dispersion apparatus to either the storage tank or the storage tank, and a branch from the dispersion apparatus to the circulation pipe A cooling means that cools the mixture that is arranged between the branch points of the pipe and flows through the circulation pipe,
The mixture sent from the dispersing device is circulated through the circulation pipe while being cooled by the cooling means to disperse the powder into the liquid, and then the flow path switching means is switched to cool the mixture sent from the dispersing device by the cooling means. A slurry dispersion system characterized in that the slurry is sent to a storage tank. 流路切替手段を切り替えて分散装置から送り出された混合物を貯留タンクに送る際は、冷却手段による冷却温度を収容タンクに戻す場合よりも低くすることを特徴とする請求項1に記載のスラリー分散システム。   2. The slurry dispersion according to claim 1, wherein when the mixture sent from the dispersing device by switching the flow path switching means is sent to the storage tank, the cooling temperature by the cooling means is lower than when returning to the storage tank. system. 流路切替手段を切り替えて分散装置から送り出された混合物を貯留タンクに送る際は、分散装置からの送出流量を収容タンクに戻す場合よりも低くすることを特徴とする請求項１または請求項２に記載のスラリー分散システム。   3. When sending the mixture sent from the dispersion device by switching the flow path switching means to the storage tank, the delivery flow rate from the dispersion device is made lower than when returning to the storage tank. The slurry dispersion system described in 1. 冷却手段から貯留タンクに送られる混合物の温度を検出する温度検出手段を備え、混合物が所定温度以下に冷却されない場合は、流路切替手段を切り替えて収容タンクに戻すことを特徴とする請求項２または請求項３に記載のスラリー分散システム。   3. A temperature detecting means for detecting the temperature of the mixture sent from the cooling means to the storage tank is provided, and when the mixture is not cooled below a predetermined temperature, the flow path switching means is switched back to the storage tank. Or the slurry dispersion system of Claim 3. 粉体が酸化アルミニウム粉末であることを特徴とする請求項１ないし請求項４に記載のスラリー分散システム。

5. The slurry dispersion system according to claim 1, wherein the powder is aluminum oxide powder.

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JP2021084067A (en) * 2019-11-27 2021-06-03 シブヤマシナリー株式会社 Dispersion system for solid-liquid mixture
CN114887845A (en) * 2022-06-17 2022-08-12 三一技术装备有限公司 Feeding system, slurry coating device and battery production system
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CN115430572B (en) * 2022-07-26 2024-02-13 深圳市曼恩斯特科技股份有限公司 Feeding system and coating production line
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CN117282305A (en) * 2023-11-27 2023-12-26 佛山涂邦德新材料科技有限公司 Discharging equipment for crack art paint production workshop
CN117282305B (en) * 2023-11-27 2024-01-30 佛山涂邦德新材料科技有限公司 Discharging equipment for crack art paint production workshop

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