JP2017104782A - Powder-liquid mixer - Google Patents
Powder-liquid mixer Download PDFInfo
- Publication number
- JP2017104782A JP2017104782A JP2015239100A JP2015239100A JP2017104782A JP 2017104782 A JP2017104782 A JP 2017104782A JP 2015239100 A JP2015239100 A JP 2015239100A JP 2015239100 A JP2015239100 A JP 2015239100A JP 2017104782 A JP2017104782 A JP 2017104782A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- liquid
- pipe
- powder supply
- supply pipe
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 51
- 239000012530 fluid Substances 0.000 abstract description 14
- 239000013618 particulate matter Substances 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000567769 Isurus oxyrinchus Species 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
本発明は、粉液混合装置に関し、粉体、特に湿潤固化しやすい樹脂粉末等を、詰まりなく連続して液体配管中に連続供給する粉液混合装置に関するものである。 The present invention relates to a powder and liquid mixing apparatus, and more particularly to a powder and liquid mixing apparatus that continuously supplies powder, particularly resin powder that easily wets and solidifies, into a liquid pipe without clogging.
従来、エゼクターを用いて液体流動により発生する負圧を利用して、粉体の連続供給および粉液混合を行う装置が提案されている（例えば、特許文献１参照）。また、電動機によって回転するローターの遠心力を利用して、粉体を負圧吸引させる装置が提案されている（例えば、特許文献２参照）。これらの装置は、積極的に流体流量に対して粉体供給速度が制御されるものではなく、樹脂（例えば、カルボキシメチルセルロースやポリフッ化ビニリデンなど）粉体と液体（例えば、水やＮ−メチル−２−ピロリジノンなど）との相性によっては、粉液接触界面で粉体が湿潤固化し、経時で固化粉体が肥大化し、粉体供給速度の低下を引き起こし、最終的には配管が閉塞する不具合を生じる。更に、粉体供給管に粉体が残存している状態で装置を停止した場合、液体が当該管に流入し、管内が閉塞する不具合が生じる。 2. Description of the Related Art Conventionally, an apparatus that continuously supplies powder and mixes powder using a negative pressure generated by liquid flow using an ejector has been proposed (see, for example, Patent Document 1). In addition, a device has been proposed that uses a centrifugal force of a rotor rotated by an electric motor to suck a negative pressure of powder (see, for example, Patent Document 2). In these apparatuses, the powder supply rate is not actively controlled with respect to the fluid flow rate, but resin (for example, carboxymethylcellulose, polyvinylidene fluoride, etc.) powder and liquid (for example, water or N-methyl- Depending on the compatibility with 2-pyrrolidinone, etc., the powder wets and solidifies at the powder-liquid contact interface, and the solidified powder enlarges over time, causing a decrease in the powder supply rate, and eventually the piping is blocked. Produce. Furthermore, when the apparatus is stopped with the powder remaining in the powder supply pipe, there is a problem that the liquid flows into the pipe and the inside of the pipe is blocked.
ところで、機能性の無機粒子（例えば、電池用活物質、導電性カーボンブラック、熱伝導性セラミックスなど）や、特に分子量の高い樹脂（カルボキシメチルセルロースやポリフッ化ビニリデンなど）粉体は、混合時や分散時に過大なエネルギーを与えると特性が低下するため、ポンプ能力と混合・分散能力をそれぞれ独立に制御する事が重要である。特許文献２では、ポンプに混合機構を設けることで、生産設備としての優位性を提案しているが、その結果、前記制御が困難なものとなっている。またいずれの装置においても、粉体の供給速度制御は、定量フィーダーに依存せざるを得ず、多重な動力確保が必要となる。 By the way, functional inorganic particles (for example, battery active materials, conductive carbon black, thermal conductive ceramics, etc.) and particularly high molecular weight resin (carboxymethyl cellulose, polyvinylidene fluoride, etc.) powders are mixed or dispersed. When excessive energy is applied sometimes, the characteristics deteriorate, so it is important to control the pump capacity and mixing / dispersing capacity independently. Patent Document 2 proposes an advantage as a production facility by providing a mixing mechanism in the pump, but as a result, the control is difficult. In any of the apparatuses, the powder supply speed control must depend on the quantitative feeder, and multiple powers must be secured.
本発明は、上記従来の粉液混合装置が有する問題点に鑑み、湿潤固化しやすい粉体であっても、管内が閉塞することなく、外部動力を必要とせずに常に安定した粉液混合を可能とするものである。 In view of the problems of the above-mentioned conventional powder-liquid mixing device, the present invention does not block the inside of the tube, and does not require external power, even if the powder is easy to wet and solidify. It is possible.
上記課題を解決するために、粉液混合装置に、液体の流動力を受けて回転するプロペラ翼と前記プロペラ翼の同一回転軸上部に粉体供給スクリューを設けたことを特徴とする。 In order to solve the above-mentioned problems, the powder-liquid mixing device is characterized in that a propeller blade that rotates by receiving a fluid force of liquid and a powder supply screw are provided on the same rotation shaft of the propeller blade.
この場合において、粉体供給スクリューの排出口より下部、粉体供給管の粉体出口であって、粉液接触界面領域に流体流動力を受けて開閉する逆支弁を設けても良い。 In this case, a reverse support valve may be provided below the discharge port of the powder supply screw, at the powder outlet of the powder supply pipe, and opened and closed by receiving fluid fluid force in the powder liquid contact interface region.
また、該逆止弁は、スプリング式のボール型がのぞましい。更に、ボール部に流体の力を受ける突起構造を有する構造とすることで、流体の流動に適切に応答した弁の開閉が可能であることからよりのぞましい。 The check valve is preferably a spring-type ball type. Further, it is more preferable that the ball portion has a projecting structure that receives the force of the fluid so that the valve can be opened and closed appropriately in response to the fluid flow.
また、上記装置において、液体供給管の装置入口端末に管内径に対して１／２〜１／１０の口径を有するオリフィスを任意の個数、設けることができる。 In the above apparatus, an arbitrary number of orifices having a diameter of 1/2 to 1/10 with respect to the inner diameter of the pipe can be provided at the apparatus inlet end of the liquid supply pipe.
本発明によれば、粉体供給速度は、流体流量に比例して回転する粉体供給スクリューによって機械的に自動的に制御されるため、流体の流量に対して粉体の過剰供給を防ぐことが可能である。これにより、粉液接触界面において、粉体が堆積することがなく、毛細管現象によって湿潤することがなく、粉体の湿潤固化を防ぐことができる。 According to the present invention, the powder supply speed is mechanically automatically controlled by the powder supply screw that rotates in proportion to the fluid flow rate, thus preventing excessive supply of powder relative to the fluid flow rate. Is possible. As a result, the powder does not accumulate at the powder liquid contact interface, does not get wet by capillary action, and can prevent the powder from being wet and solidified.
また、従来から大きな課題となっていた装置停止時、即ち、流体流動停止における負圧解除時の粉体供給管への流体の逆流による湿潤固化は、粉体供給管出口に設けられた逆支弁によって予防する事ができ、装置再起動時における逐次メンテナンスが不要となる。これによって、配管部の開放メンテナンス頻度を低減させることができ、環境中に浮遊する異物のコンタミを排除する事が可能であり、微細な異物のコンタミにおいても、致命的な品質不良を引き起こす電子材料などの品質が大幅に向上する。 Further, when the apparatus is stopped, which has been a big problem from the past, that is, when the negative pressure is released when the fluid flow is stopped, wet solidification due to the back flow of fluid to the powder supply pipe is a reverse valve provided at the powder supply pipe outlet. Can be prevented and sequential maintenance is not required when the apparatus is restarted. This can reduce the frequency of open maintenance of piping parts, and it is possible to eliminate contamination of foreign matters floating in the environment. Electronic materials that cause fatal quality defects even in the case of fine foreign matter contamination As a result, the quality is greatly improved.
また、粉体供給速度とその制御は、液体の流動エネルギーを動力とすることで、電動機などの外部動力を必要としないため、動力コストが小さく、同時に小型化が可能であり、設置スペースの確保が容易となるなど、経済的な課題を解決する事ができる。 In addition, the powder supply speed and its control are driven by the flow energy of the liquid, so no external power such as an electric motor is required, so the power cost is low and the size can be reduced at the same time, ensuring installation space. This makes it possible to solve economic problems.
また、液体供給管の混合部入口に、管内径に対して１／２〜１／１０の口径を有するオリフィスを流路に設けることで、オリフィスの２次側、即ち混合装置内部へ流入する流体に対して、液体供給管内の流速の２〜１０倍の流速を与える事が可能であり、強力な乱流現象とせん断力を生み出す事が出来る。これによって、通常の液体流動では、ママコ（継粉）を生じる粉体であっても、瞬時に均一化できる。オリフィスの個数は制限されないが、混合部での流動均一性確保のために、好ましくは４〜８個である。 Further, by providing an orifice having a diameter of 1/2 to 1/10 of the inner diameter of the pipe at the mixing portion inlet of the liquid supply pipe, the fluid flowing into the secondary side of the orifice, that is, the inside of the mixing device On the other hand, it is possible to give a flow rate of 2 to 10 times the flow rate in the liquid supply pipe, and it is possible to generate a strong turbulent phenomenon and a shearing force. As a result, even with a normal liquid flow, even a powder that produces mamako (sintering powder) can be instantly uniformized. The number of orifices is not limited, but is preferably 4 to 8 in order to ensure flow uniformity in the mixing section.
以下、本発明の実施形態を、図面に基づいて説明する。図１〜２に、本発明の粉液混合装置の実施例を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the powder-liquid mixing device of the present invention.
この粉液混合装置は、流体の流れ得る配管１に粉体供給管２を接続し、該供給管２の内側に粉体供給用スクリュー３が設けられ、粉液混合部は、流体の流動作用によって開閉する逆支弁４と、流体の流動作用を受けて回転するプロペラ翼５で構成されている。該スクリュー３と該プロペラ翼５は、同一回転軸を共有しており、スクリューとプロペラ翼は同期して回転する。該配管１の左方から液体が流れると、粉体供給管２の下部末端付近に負圧が生じる構造となっており、これによって、該供給管２への液体の逆流を防止する。同時に該プロペラ翼５と同期して該スクリュー３が回転し、液体流量に比例した粉体供給速度で粉体を混合部に供給する。 In this powder / liquid mixing apparatus, a powder supply pipe 2 is connected to a pipe 1 through which a fluid can flow, and a powder supply screw 3 is provided inside the supply pipe 2. And a propeller blade 5 that rotates by receiving a fluid flow action. The screw 3 and the propeller blade 5 share the same rotation axis, and the screw and the propeller blade rotate in synchronization. When a liquid flows from the left side of the pipe 1, a negative pressure is generated near the lower end of the powder supply pipe 2, thereby preventing the liquid from flowing back to the supply pipe 2. At the same time, the screw 3 rotates in synchronization with the propeller blade 5 to supply powder to the mixing section at a powder supply speed proportional to the liquid flow rate.
また、運転開始前や運転停止時など該配管１中の液体の流れが止まった際には、該逆支弁４が自動的に該供給管２の下部末端を塞ぎ、該供給管２への液体の流入を防止する。 In addition, when the flow of liquid in the pipe 1 stops before the operation is started or when the operation is stopped, the reverse support valve 4 automatically closes the lower end of the supply pipe 2, and the liquid to the supply pipe 2 is stopped. To prevent inflow.
更に、図３の様に液体の混合部入口にオリフィス６を設けることで、混合部における液体流速を向上させることが可能となる。これによって混合部での混合液の瞬時流速および最大レイノルズ数が２倍〜１０倍となり、乱流による混合性能が大幅に向上すると共に、せん断力が向上し極めてママコが生じやすい粉体に対しても、瞬時にママコを解砕し均一化できる。 Furthermore, by providing the orifice 6 at the inlet of the liquid mixing section as shown in FIG. 3, the liquid flow rate in the mixing section can be improved. As a result, the instantaneous flow velocity and maximum Reynolds number of the mixed liquid in the mixing section are doubled to 10 times, greatly improving the mixing performance by turbulent flow, and improving the shearing force, which makes it very easy to generate mako. However, Mamako can be crushed and homogenized instantly.
１ 液体が流入し得る配管
２ 粉体供給管
３ 粉体供給用スクリュー
４ 逆止弁
５ プロペラ翼
６ オリフィス
７ 液体を排出し得る配管
DESCRIPTION OF SYMBOLS 1 Pipe | tube which liquid can flow in 2 Powder supply pipe 3 Powder supply screw 4 Check valve 5 Propeller blade 6 Orifice 7 Pipe which can discharge liquid
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015239100A JP2017104782A (en) | 2015-12-08 | 2015-12-08 | Powder-liquid mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015239100A JP2017104782A (en) | 2015-12-08 | 2015-12-08 | Powder-liquid mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2017104782A true JP2017104782A (en) | 2017-06-15 |
Family
ID=59058369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015239100A Pending JP2017104782A (en) | 2015-12-08 | 2015-12-08 | Powder-liquid mixer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2017104782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260983A (en) * | 2018-11-18 | 2019-01-25 | 张雅慧 | A kind of the aquatic feeds hybrid process device and its processing method of fresh-water carp |
-
2015
- 2015-12-08 JP JP2015239100A patent/JP2017104782A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260983A (en) * | 2018-11-18 | 2019-01-25 | 张雅慧 | A kind of the aquatic feeds hybrid process device and its processing method of fresh-water carp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101718379B1 (en) | A circulating-type dispersing system and a method therefor | |
| WO2012017569A1 (en) | Circulation-type dispersion system, and circulation-type dispersion method | |
| EP2623192A1 (en) | Shearing type dispersing device, circulation type dispersing system, and circulation type dispersing method | |
| US11819810B2 (en) | Mixing apparatus with flush line and method | |
| US20150238912A1 (en) | Mixing apparatus with stator and method | |
| CN202490592U (en) | Powder and liquid mixing device | |
| JP6388501B2 (en) | Slurry dispersion system | |
| US10201788B2 (en) | Polymer flocculant mixing and dissolving system configured to control pressure on discharge side of regenerative mixer and method thereof | |
| CN218307353U (en) | Pulping machine | |
| JP2011161401A (en) | Agitator | |
| KR20240053646A (en) | Devices and equipment used for solid-liquid mixing and dispersion | |
| JP2017104782A (en) | Powder-liquid mixer | |
| WO2016152895A1 (en) | Stirrer | |
| JP2017035679A (en) | Dispersion system | |
| JP2017035679A5 (en) | ||
| TWI792660B (en) | Dispersing and crushing device | |
| US1496641A (en) | Mixing, incorporating, and disintegrating machine | |
| CN101433812A (en) | Wet flattening turbulent current real time liquor-mixing system | |
| JP2015080771A (en) | Ring with hole and nano-bubble generating device with same mounted thereon | |
| JP2014050768A (en) | Mixing device, mixture manufacturing system, and mixture manufacturing method | |
| JP6562396B2 (en) | Battery electrode slurry distribution apparatus, battery electrode slurry processing apparatus, battery electrode slurry distribution method, suspension distribution apparatus, and suspension distribution method | |
| CN103263987B (en) | Injection apparatus is stirred in a kind of fluid damping | |
| JP2018020276A (en) | Dispersion device and dispersion method | |
| CN210303212U (en) | High-shear homogenizer | |
| KR20190004004A (en) | Underwater crushing pump |