JP4366124B2 - Stirring and mixing apparatus and stirring and mixing method - Google Patents

Description

【００７５】
上記表１の粉体原料を予め粉砕混合した後、上記油剤を添加混合してファンデーション用のバルク１００重量部とした。その後、本発明の図１に示す混合装置の液体導入口５０から１，３−ブチレングリコールと精製水とからなる液体５重量部を、また粉体導入口５２からバルク１００重量部を、それぞれケーシング１２内に供給し、均一になるように振動撹拌により混合した。次いで、得られた混合物を円型中皿に充填し、プレス成形を行い、５０℃で９時間乾燥させた。得られたプレス品の落下試験強度（中皿に充填された固形粉体化粧料をコンパクト容器内に装着し、このコンパクト容器を高さ５０ｃｍのところから厚さ２ｃｍの合板上に落下させ、はがれが発生するまでの落下回数を測定する）を評価した。その結果、５０回と良好であった。
【００７６】
実施例２．
ケイ素系高分子被覆粉体の製造：
粉体として球状シリカＵＳ−１０（三菱レイヨン（株）製、平均粒子径１０μｍ）１００ｇを図１に示す本発明の撹拌混合装置の粉体導入口から供給し、一方、液体としてフェニルポリシラン５ｇをトルエン６５ｇに溶解させ、本発明の撹拌混合装置の液体導入口から供給し、１分間振動撹拌を行いスラリーを得た。このスラリーを温度８０℃、６ｋＰａの圧力でトルエンを３０ｇ留去させ、トルエン中に均一に分散し流動性を有するフェニルポリシラン処理球状シリカを得た。次に、このフェニルポリシラン処理球状シリカ含有トルエン相と、水３５ｇとを本発明の撹拌混合装置にそれぞれ添加して、振動撹拌を行うと、水がフェニルポリシラン処理球状シリカ含有トルエン相と混ざり流動性が低下した。その後、トルエン３５ｇと水３０ｇとを同時に留去させると、フェニルポリシラン処理球状シリカはほとんど凝集することなく、球状の形状であることが確認された。
【００７７】
実施例３．
液状シリコーンゴム組成物の製造：
分子鎖両末端がジメチルビニルシリル基で封鎖された直鎖状ジメチルポリシロキサン（粘度１０，０００ｃＳｔ）４５部と、１，１，１，３，５，７，７，７−オクタメチル−３，５−ジヒドロキシテトラシロキサン３部とを混合し、更にシリコン粉末（NIPSIL LP（登録商標）、日本シリカ社製）５５部を混合して予備混合粉体を製造した。更に、この予備混合粉体を、本発明の撹拌混合装置の粉体導入口から供給し、一方、上記ジメチルポリシロキサン１１６部を本発明の撹拌混合装置の液体導入口から供給し、導入口から下流にしたがって、１０℃から２８０℃に徐々に昇温してゆき、排出口より得られた液状シリコーンゴムベースを得た。更に、得られた液状シリコーンゴムベース１００部に対して、直鎖ジメチルポリシロキサン２５部、架橋剤としてメチルハイドロジェンポリシロキサン３部、白金触媒として塩化白金酸の１％イソプロピルアルコール溶液０．３部、反応抑制剤としてエチニルシクロへキサノール０．３重量部を加えて混合し、１２０℃１０分間硬化させてシートを製造した。ＪＩＳ−Ｋ−６３０１に準じて３００回／粉の速度で１００％伸張の往復運動（０〜１００％の間で繰り返し伸張）をさせてシートの試験片が破壊されるまで往復回数を測定したところ、耐久疲労性は１２５０万回と良好であった。
【００７８】
以上、例示した用途に本発明の撹拌混合装置を用いることによって、粉体と液体との均一混合を行うことができる。その結果、上述のいずれの製品も良好な性能を有することが判明した。なお、上述の用途以外において、本発明の撹拌混合装置及び撹拌混合装置を用いることにより、あらゆる粉体と液体との組み合わせ、あらゆる粉体と液体との混合比、及びあらゆる粘度における、均一撹拌混合された混合物及び均一反応された反応物をも製造することができる。
【００７９】
【発明の効果】
以上説明したように、本発明によれば、たとえば、あらゆる種類の粉体と液体とを振動撹拌により容易に均一混合することができる。
【図面の簡単な説明】
【図１】 本発明の実施の形態１，２の撹拌混合装置の構成を示す概略図である。
【図２】 本発明の実施の形態３の撹拌混合装置の二重パッキング構造を説明する図であって、図１のＡ部分の拡大断面図である。
【図３】 本発明の実施の形態４の撹拌混合装置のケーシング部分構成を示す概略図である。
【図４】 本発明の実施の形態４の撹拌混合装置に用いる撹拌体の例を示す図である。
【図５】 本発明の実施の形態５の撹拌混合装置における粉体導入側の拡大概略図である。
【図６】 本発明の実施の形態５の攪拌混合装置のケーシング内部の構成を示す概略図である。
【図７】 図６のＡ−Ａ’線に沿った断面図である。
【図８】 図６のＢ−Ｂ’線に沿った断面図である。
【符号の説明】
１０ 撹拌混合装置、１２ ケーシング、１４ 軸部、１６ 撹拌羽根、１８，３２ モータ、２０ 液体貯留槽、２２ ポンプ、２４ 液体、３０ 粉体導入管、３４ 粉体、３６ 導入体、４０，４２，４４，４６ バルブ、５０ 液体導入口、５２ 粉体導入口、 ５４，５６ 供給口。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stirring and mixing device and a stirring and mixing method, and more particularly to a highly versatile stirring and mixing device and a stirring and mixing method of powder and liquid.
[0002]
[Prior art]
In general, when a liquid is added to a powder and mixed, when a powder is added to a liquid and mixed, and when a powder and a liquid are simply added and mixed simultaneously, the powder is mixed in the liquid. It is known that secondary agglomerates (so-called lumps) are generated, and it is extremely difficult to disperse the secondary agglomerates once generated in the liquid. In particular, this phenomenon occurs remarkably when the powder is mixed with a highly viscous liquid.
[0003]
Therefore, in recent years, an apparatus and a method for uniformly mixing so as not to cause secondary aggregation when mixing powder and liquid have been proposed.
[0004]
Conventionally, a supply port for charging liquid and powder is provided in the upper part, and a rotary disk is provided in the casing provided with a discharge port in the lower part. In addition, a scraper is attached to the top of the rotating disk, and a rotating scraper that rotates independently of the rotating disk in a non-contact state is attached to the lower position of the rotating disk. A continuous mixing device for liquid and powder has been proposed in which the mixture that has been rotated and mixed and moved to the lower kneading chamber is scraped and mixed continuously by a rotating scraper that rotates at a lower speed than the rotating disk, and continuously moved from the outlet to the outside. (For example, Patent Documents 1 to 3).
[0005]
In addition, in a continuous mixing apparatus that mixes powder and liquid via a rotating mixing board, apparatuses that spray and supply liquid to uniformly mix powder and liquid have also been proposed (for example, Patent Documents 4 to 5). 5).
[0006]
Further, in a method of mixing a powder value such as coal powder and a liquid value such as water into a slurry, the powder is fed into a screw pump and further supplied from the middle of the screw pump so that the powder and liquid There has also been proposed a method in which the pressure is increased by mixing and lowering the pressure at the discharge port of the screw pump to form a slurry (for example, Patent Document 6).
[0007]
Further, the applicant of the present application also has a casing for storing two or more kinds of substances therein, and a lever disposed in the casing, and has an unevenness on at least one side of the casing inner surface or the outer surface of the lever. Forming and further reciprocating the casing and the lever, and at least one of the two or more substances is generated by a narrow pressure generated in a gap between the inner surface of the casing and the outer surface of the lever. A dispersion apparatus for dispersion has been proposed (Patent Document 7).
[0008]
[Patent Document 1]
JP-A-11-19495
[Patent Document 2]
JP 2001-62273 A
[Patent Document 3]
JP 2002-166154 A
[Patent Document 4]
JP 2002-248330 A
[Patent Document 5]
JP 2001-198447 A
[Patent Document 6]
JP 2001-65850 A
[Patent Document 7]
JP 2000-246131 A
[0009]
[Problems to be solved by the invention]
However, in any of the above-described mixing apparatuses and mixing methods, the uniform mixing is still insufficient, and the combinations of powder and liquid that can be mixed are limited.
[0010]
The present invention has been made in view of the above problems, and in particular, a combination of powder and liquid to be mixed is not limited and is highly versatile, and is excellent in uniform mixing of powder and liquid. An object of the present invention is to provide a stirring and mixing device and a stirring and mixing method of liquid and liquid.
[0011]
[Means for Solving the Problems]
The stirring and mixing apparatus and the stirring and mixing method of the present invention have the following characteristics.
[0012]
(1) Stirrer comprising a casing provided with a flow passage through which a fluid is circulated, a shaft portion disposed in the casing and connected to a vibration source, and a stirring blade attached around the shaft portion And two or more inlets for introducing liquid or powder into the casing, and the casing has one or more stirring chambers in which the flow path is partitioned by a partition plate And at least two packings disposed in the casing that allow liquid outflow from the vibration source side while preventing fluid from entering the vibration source, and at least one of the stirring chambers Is a preliminary agitation chamber in which the introduction port is installed, and the packing is provided between the vibration source and the preliminary agitation chamber, The partition plate is a stirring and mixing device provided with one or more holes.
[0013]
By providing one or more holes in the partition plate, the degree of stirring in the stirring chamber formed between the partition plates can be made different from that of other stirring chambers.
[0014]
(2) The stirring and mixing apparatus according to (1), wherein the stirring blade is further provided with one or more holes.
[0015]
By providing one or more holes in the stirring blade, the degree of stirring in the stirring chamber located in the vibrable range of the portion where the hole is formed in the stirring blade can be made different from that of other stirring chambers.
[0016]
(3) In the stirring and mixing apparatus described in (1) or (2) above, The degree of stirring inside the casing depends on the number of holes and / or the size of the holes. This is a stirring and mixing apparatus.
[0017]
By changing the number of holes and the size of the holes, the stirring area in the partition plate and the stirring blade can be changed. By changing the agitation area, the degree of agitation in each agitation can be changed to desired coarse or dense.
[0018]
(4) In the stirring and mixing device according to (1) or (2), the stirring blade further includes: plural Different shapes with different agitation areas Stirring Feather By at least one of It is the stirring and mixing apparatus currently formed.
[0019]
By combining blades of different shapes with different stirring areas, the degree of stirring in the flow passage in the casing can be changed.
[0020]
(5) Stirring comprising a casing provided with a flow passage through which a fluid is circulated, a shaft portion disposed in the casing and connected to a vibration source, and a stirring blade attached around the shaft portion. A body, a powder inlet provided in the casing for introducing powder into the casing, and a proximity of the powder inlet to the casing for inserting liquid into the casing A liquid inlet provided; The liquid introduction port has at least two packings disposed in the casing that allows liquid to flow out from the vibration source side while preventing fluid from entering the vibration source, and the liquid introduction port includes the powder introduction port. Located above or below, the liquid is introduced into a space formed between the two packings. This is an apparatus for stirring and mixing powder and liquid.
[0021]
By vibrating the stirring body in the casing, the powder introduced from the powder introduction pipe is supplied into the casing without stagnation. For this reason, since a constant amount of powder can be supplied almost always without clogging, continuous and uniform powder and liquid can be mixed. In addition, since the introduction body or the uniaxial eccentric pump having the spiral blade can introduce the powder into the casing at a relatively high speed from the powder introduction pipe, the slurry-like mixture of the powder and the liquid and the high viscosity It is also possible to produce a mixture. Further, by mixing the powder and liquid by vibrating the stirring body in the casing, for example, even in the production of a slurry or a mixture having a high viscosity, uniform mixing is performed without causing secondary aggregation. be able to.
[0022]
(6) In the powder and liquid stirring and mixing apparatus according to (5), the powder introduction port and the liquid introduction port may be powder provided in either the upper part or the lower part of the casing. A stirring and mixing device with a liquid.
[0023]
By bringing the supplied powder and liquid into contact with each other at an early stage, it is possible to make the occurrence of secondary aggregation less likely to occur.
[0024]
(7) In the stirring and mixing apparatus for powder and liquid according to (5) or (6) above, a preliminary stirring and mixing chamber which can communicate with the other part of the casing at the upper part or the lower part of the casing. The powder inlet and the liquid inlet are stirring and mixing devices for powder and liquid that are provided in the preliminary stirring and mixing chamber at the upper or lower portion of the casing.
[0025]
By providing a pre-stirring and mixing chamber, the powder and liquid are preliminarily vibrated and mixed almost uniformly before this vibration stirring to prevent further secondary aggregation. Can do.
[0026]
(8) In the stirring and mixing device for powder and liquid described in (7) above, at least one type of stirring blade from the group consisting of a plurality of stirring blades is provided around the shaft portion of the stirring body. Is a stirring and mixing device for powder and liquid, which is selected and attached.
[0027]
Uniform stirring is achieved by attaching at least one or more types of stirring blades appropriately selected according to the powder, liquid and properties to be stirred and mixed from the group of stirring blades having a plurality of shapes around the axis of the stirring body. The improvement of the property and stirring efficiency can be aimed at. For example, when the powder is introduced from the top, by attaching a stirring blade arranged so as not to overlap each other, the supplied powder is less likely to accumulate on the stirring blade. Can be mixed almost uniformly. Further, in such a case, by attaching spiral blades around the central part of the shaft and the lower part of the stirring body, a large turbulent flow can be generated in the mixture of powder and liquid when the stirring body is vibrated. Therefore, the stirring and mixing efficiency is improved.
[0028]
(9) In the stirring and mixing device for powder and liquid as described in (5) above, the casing further permits liquid outflow from the vibration source side while preventing fluid from entering the vibration source. At least two packings disposed, and the liquid inlet is located above or below the powder inlet, and is provided in a space formed between the two packings so that the liquid can be introduced. It is an apparatus for mixing powder and liquid.
[0029]
By introducing the liquid from the space provided in the two packings described above, the powder supplied from the powder introduction port below or above the liquid introduction port can be quickly combined with the liquid flowing from above or below. Therefore, it is possible to prevent the powder from rising upward in the casing and adhering to the inner wall of the upper part of the casing or sticking to the upper part of the stirring body. Thereby, it can stir and mix rapidly according to the compounding ratio of powder and liquid.
[0030]
(10) In the stirring and mixing apparatus for powder and liquid according to (1) or (5) above, This is a stirring and mixing method of powder and liquid in which powder and liquid are introduced simultaneously or intermittently into a casing having vibration stirring blades and subjected to vibration stirring.
[0031]
Without applying a large shearing force, the powder and the liquid can be uniformly mixed by vibration stirring.
[0032]
(11) In the stirring and mixing device for powder and liquid according to (10) above, A mixed powder forming step of mixing two or more kinds of powders in advance to form a mixed powder, a step of introducing the mixed powder and the liquid into the casing simultaneously or intermittently, and vibrating and stirring; This is a stirring and mixing method of a powder having liquid and a liquid.
[0033]
By vibration stirring, for example, two or more types of powders and liquids having different characteristics can be uniformly mixed at the same time or intermittently.
[0034]
(12) In the stirring and mixing device for powder and liquid according to (10) above, In the same flow path where fluid flows In the stirrer This is a stirring and mixing method that changes the degree of stirring as needed.
[0035]
In the same flow passage, uniform stirring and mixing can be performed by appropriately combining rough stirring and dense stirring according to the stirring and mixing characteristics of the mixture.
[0036]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a stirring and mixing apparatus and a stirring and mixing method according to an embodiment of the present invention will be described with reference to the drawings.
[0037]
Embodiment 1 FIG.
As shown in FIG. 1, the powder and liquid stirring and mixing device 10 (hereinafter referred to as “stirring and mixing device 10”) of the present embodiment includes a casing 12 provided with a flow passage through which a fluid flows. In the casing 12, a stirring body including a shaft portion 14 connected to a motor 18 that is a vibration source and a stirring blade 16 attached around the shaft portion 14 is provided.
[0038]
In addition, a powder inlet 52 for introducing the powder 34 into the casing 12 and a liquid for introducing the liquid 24 into the casing near the powder inlet 52 are provided above the casing 12. An inlet 50 is provided. As a result, the supplied powder and liquid come into contact with each other, and the occurrence of secondary aggregation is further suppressed.
[0039]
The liquid inlet 50 is connected to the liquid storage tank 20 via the valve 40 and the pump 22, and the liquid 24 for mixing is stored in the liquid storage tank 20. On the other hand, the powder introduction port 52 is connected to the powder introduction tube 30 via a valve 42, and the upper portion of the powder introduction tube 30 is preferably funnel-shaped. Further, the powder introduction tube 30 is provided with an introduction shaft portion connected to a motor 32 as a rotational drive source and a spiral blade attached around the introduction shaft portion so that the powder can be introduced at a relatively high speed. An introduction body (not shown, for example, a screw feeder) and a uniaxial eccentric pump (for example, a MONO pump (manufactured by Hyojin Equipment Co., Ltd.)) are provided. The powder introduction tube 30 is preferably attached to the casing 12 in an oblique direction. Thereby, the powder can be introduced more smoothly, and the retention of the powder 34 in the pipe connecting the powder introduction pipe 30 and the casing 12 can be prevented.
[0040]
In addition, supply ports 54 and 56 are provided in the lower portion of the casing 12, and the supply ports 54 and 56 can be connected to the outside via valves 44 and 46, respectively. Further, although not shown, a supply port for introducing the second liquid may be further provided in the casing 12 shown in FIG.
[0041]
Next, operation | movement of the stirring and mixing apparatus 10 of this Embodiment is demonstrated below.
[0042]
First, the valves 44 and 46 are closed, and the valves 40 and 42 are opened. Next, the pump 22 and the motor 32 are driven almost simultaneously to introduce the liquid 24 and the powder 34 into the casing 12. On the other hand, the motor 18 is driven to vibrate the stirring body in the casing 12. The powder 34 is more smoothly introduced into the casing 12 by the vibration of the stirring body in the casing. Then, after introducing the powder 34 and the liquid 24 in a certain amount and in a certain ratio, the valves 40 and 42 are closed, the supply is stopped, and the powder 34 uniformly mixed in the casing 12 after stirring for a certain period of time. The liquid 24 and the mixture are conveyed to the outside by opening the valve 46 with the supply port 56 as the discharge port.
[0043]
In the above description, the method of stirring and mixing the stirring and mixing apparatus 10 in a batch system has been described. However, the present invention is not limited to this. For example, the valves 40 and 42 are always opened, and the powder 34 and the liquid 24 are mixed at a constant ratio. Is introduced into the casing 12, while the supply port 56 is used as a discharge port, the valve 46 is always open, and the above-described stirring and mixing device 10 is used as a continuous system for continuously mixing powder and liquid. It may be used.
[0044]
Embodiment 2. FIG.
In the present embodiment, in the stirring and mixing apparatus of FIG. 1, instead of the liquid inlet 50 of the first embodiment, a supply port 56 is used, and the pump 22 and the liquid storage tank 20 are connected via a valve 46. Instead of the powder introduction port 52 of the first embodiment, a supply port 54 is used and connected to the powder introduction tube 30 via a valve 44. Further, the liquid introduction port 50 of the first embodiment is used as a discharge port. Since the configuration is the same as that of the first embodiment except that the mixture of liquid and powder is conveyed to the outside, the same components are denoted by the same reference numerals, and the description of the configurations is omitted.
[0045]
As in the present embodiment, by introducing the powder 34 and the liquid 24 into the casing 12 from the bottom, the turbulent flow in the casing 12 is larger because vibration is stirred against gravity. For example, it is suitable for uniform stirring of a slurry or a highly viscous mixture.
[0046]
Embodiment 3 FIG.
In the present embodiment, the configuration is the same as that of Embodiment 1 except that the supply port 58 shown in FIG. 2 is used instead of the liquid inlet 50 shown in FIG. 1 of Embodiment 1. The same reference numerals are given to the same components, and the description of the components is omitted.
[0047]
The casing 12 has a double packing structure in order to prevent fluid from entering the motor, which is a vibration source that vibrates the stirring body, from the stirring and mixing portion inside the casing 12. That is, as shown in FIG. 2, an inverted U-shaped packing 60 is attached by a packing stopper 64 in the vicinity of the stirring and mixing portion, while an inverted U-shaped packing 62 is attached by a packing stopper 66 in the vicinity of the coil near the motor. A double packing structure is formed. One end of each of the inverted U-shaped packings 60 and 62 is fixed by the packing stoppers 64 and 66 described above, and the other end is disposed so as to contact the shaft portion 14 as a free end. Accordingly, the inverted U-shaped packings 60 and 62 allow the liquid and fluid to flow downward from above, but prevent the liquid and fluid from entering from below. A supply port 58 is formed in the space between the inverted U-shaped packings 60 and 62, and the supply port 58 is connected to the supply port 58 via the valve 40 and the pump 22 instead of the liquid introduction port 50 of the first embodiment. The liquid storage tank 20 may be connected.
[0048]
As described above, by introducing the liquid 24 into the space of the double packing structure, the powder 34 supplied from the powder introduction port 52 quickly contacts the liquid 24 flowing from above, and the powder 34. Can be prevented from rising to the upper part of the casing 12 and adhering to the upper inner wall of the casing 12 or adhering to the upper part of the stirring body. Thereby, the mixing ratio of powder and liquid can always be maintained, and the mixing accuracy can be further improved. In the present embodiment, the case where the motor 18 of the stirring and mixing apparatus 10 shown in FIG. 1 is disposed above has been described. However, the present invention is not limited to this, and the motor 18 is disposed below and the stirring and mixing apparatus 10 is moved up and down. Mixing with stirring may be performed in an inverted configuration.
[0049]
Embodiment 4 FIG.
In the present embodiment, the same components as those described in any of the first, second, and third embodiments are denoted by the same reference numerals, and description of the components is omitted.
[0050]
In the present embodiment, as shown in FIG. 3, a preliminary stirring and mixing chamber 100 is provided above the casing 12 so as to be able to communicate with other portions of the casing 12. The stirrer 14 in the casing 12 is shifted by, for example, 30 to 90 degrees so that the rod-shaped or round plate-like blades 16a do not overlap each other in the portion corresponding to the preliminary stirring and mixing chamber 100. On the other hand, spiral blades 16b are attached to portions corresponding to the central portion and the lower portion of the casing 12, respectively.
[0051]
Therefore, when the powder is introduced into the casing 12 from the powder introduction port 52 and the liquid from the liquid introduction port 50, the introduced powder does not accumulate on the stirring blade 16a having a rounded upper surface. Further, by vibrating the stirring body 14, the introduced liquid can be mixed almost uniformly in the pre-stirring mixing chamber 100, the accuracy of the mixing ratio can be maintained, and deposition is prevented. The continuous mixing operation is possible without causing any trouble in the operation of the body 14.
[0052]
On the other hand, the mixture of the powder and liquid mixed almost uniformly in the preliminary stirring and mixing chamber 100 causes a large turbulent flow to be formed in the casing 12 by the spiral blade 16b by vibrating the stirring body. It can be mixed uniformly enough.
[0053]
In addition, the fully mixed mixture can be conveyed outside by using the supply port 56 as a discharge port.
[0054]
In the present embodiment, the partition plate 80 partitions the preliminary stirring and mixing chamber 100 and the other casing so that they can communicate with each other, and the partition other than the preliminary stirring and mixing chamber 100 is partitioned by the partition plate 80, thereby providing a turbulent flow effect. Is increasing. However, the present invention is not limited to this, and the partition plate 80 may not be provided if stirring and mixing can be easily performed due to the properties of the powder and the liquid. In the present embodiment, the stirring blades 16a and 16b as shown in FIG. 3 are used. However, the present invention is not limited to this. For example, those shown in (a) to (d) of FIG. It may be selected and used. Further, instead of the stirring blade 16a, a stirring blade in which two or more holes are provided in a plate-shaped blade may be used. The stirring blade 16b is provided with spiral blades in the same phase in the axial direction, but is not limited to this, and the spiral blades may be attached in a different phase with respect to the axial direction at regular intervals. Note that the agitator described above may be applied to any of the configurations of the first, second, and third embodiments. In addition, by using what provided the edge in the spiral blade | wing shown in (d) of FIG. 4, a vortex | eddy_current generate | occur | produces at the time of the vibration of a stirring blade, and stirring efficiency improves more.
[0055]
Further, the stirring and mixing apparatus shown in FIG. 3 shows a configuration in which the preliminary stirring and mixing chamber 100 is provided in the upper part. However, the present invention is not limited to this, and powder and liquid are put into the casing from below the casing. In the case of introduction, the space formed between the bottom of the casing and the lower partition plate 80 shown in FIG. 3 becomes a pre-stirring and mixing chamber and can be pre-stirred in the same manner.
[0056]
Embodiment 5 FIG.
In FIG. 5, one end of the powder introduction tube 31 is connected to the powder introduction port 52 via the ball valve 92, and the other end of the powder introduction tube 31 branches in two directions, and one end has a powder. A funnel for supplying the body 34 is integrally connected, and a piston 90 capable of pressing the powder 34 is inserted into the other end so as to be able to advance and retreat. Therefore, the powder 34 can be introduced into the casing 12 by opening the ball valve 92 as shown in FIG. 5 and advancing the piston 90 to press the powder 34. On the other hand, the introduction of the powder 34 into the casing 12 can be stopped by rotating the ball valve 92 90 degrees from the state shown in FIG. Thereby, the powder 34 can be intermittently introduced into the casing 12. Further, when the ball valve 92 is closed, the powder 34 can be stably introduced without being wetted by the liquid.
[0057]
Embodiment 6 FIG.
FIG. 6 shows an outline of the internal configuration of the stirring and mixing apparatus 200 of the present embodiment. Note that in this embodiment, the same components as those described in any of Embodiments 1, 2, and 3 are denoted by the same reference numerals, and description of the components is omitted.
[0058]
In the present embodiment, as shown in FIG. 6, the inside of the casing 12 is partitioned by the partition plates 80a and 80b so as to communicate with the plurality of stirring chambers 110a, 110b, and 110c. The stirrer 14 in the casing 12 is attached at a portion corresponding to the stirrer chamber 110a while being shifted by, for example, 30 to 90 ° so that the rod-shaped blades 16a having round shapes on the upper surface or the upper surface do not overlap each other. On the other hand, a spiral blade 16b provided with a hole 90a is attached to a portion corresponding to the stirring chamber 110b at the center of the casing 12, and a hole 90b is provided to a portion corresponding to the stirring chamber 110c at the bottom of the casing 12. A spiral blade 16c is attached.
[0059]
FIG. 7 is a cross-sectional view taken along the line AA ′ of FIG. 6, and the partition plate 80a is provided with a hole 82a having a small diameter. On the other hand, FIG. 8 shows a cross-sectional view along the line BB ′ in FIG. 6, and the partition plate 80b is provided with a hole 82b having a large diameter.
[0060]
More specifically, the present embodiment is configured as follows in order to perform mixing and stirring in the order of coarse-dense-coarse in the casing 12 in the present embodiment. That is, in the stirring chamber 110a, in order to perform rough stirring, the stirring blade corresponding to the stirring chamber 110a is a rod-like blade 16a having a small stirring area or a round top surface. On the other hand, in the stirring chamber 110b, in order to perform dense stirring, the diameter of the hole 90a formed in the spiral blade 16b is small and formed in the stirring blade corresponding to the stirring chamber 110b in order to increase the stirring area. The number of holes 90a formed is small, the diameter of the holes 82a formed in the partition plate 80a is small, and the number of holes 82a is small. In addition, in the stirring chamber 110c, since rough stirring is performed, the diameter of the hole 90b formed in the spiral blade 16c is larger in the portion of the stirring blade corresponding to the stirring chamber 110c than in the stirring blade 16b. In addition, the number of holes 90b formed is large, the diameter of the holes 82b formed in the partition plate 80b is large, and the number of holes 82b is large.
[0061]
Therefore, when the powder is introduced into the casing 12 from the powder introduction port 52 and the liquid from the liquid introduction port 50, the introduced powder does not accumulate on the stirring blade 16a having a rounded upper surface. Further, the stirring body 14 is vibrated, so that rough stirring can be performed in the introduced liquid and the stirring chamber 110a, and further, the mixture can be prevented from being deposited on the stirring blade. The continuous mixing operation is possible without causing any trouble.
[0062]
On the other hand, the mixture of powder and liquid mixed in the stirring chamber 110a is introduced into the stirring chamber 110b little by little via the partition plate 80a, and the stirring body 14 is further oscillated to thereby spiral the blade 16b having a large stirring area. A large turbulent flow is formed by this, so that the mixture is sufficiently stirred and mixed.
[0063]
A large amount of the mixture that has been stirred closely in the stirring chamber 110b is introduced into the stirring chamber 110c via the partition plate 80b, and further, due to the vibration of the stirring body 14, a small turbulent flow is formed by the spiral blade 16c having a small stirring area, The mixture which is roughly stirred and sufficiently stirred to prepare a mixed state can be conveyed to the outside by using the supply port 56 as a discharge port.
[0064]
As described above, according to the stirring and mixing apparatus 200 of the present invention, by reducing the diameter of the holes formed in the partition plate and / or the stirring blade in the stirring chamber, or by reducing the number of the holes, The stirring chamber can be agitated densely, while the diameter of the holes formed in the partition plate and / or the stirring blades in the stirring chamber is increased or the number of the holes is increased. The room can be roughly stirred.
[0065]
In the embodiment described above, coarse-dense-coarse stirring is performed. However, the present invention is not limited to this, and the casing 12 is used to perform coarse-dense, dense-coarse, dense-coarse-dense stirring. The number and diameter of the holes in the stirring blades and the number and diameter of the holes in the partition plate may be selected as appropriate. In the above embodiment, coarse or dense stirring is completed in one stirring chamber. However, the present invention is not limited to this, and rough or dense stirring is performed by connecting a plurality of stirring chambers in multiple stages. May be performed. Furthermore, in this embodiment, a rod-like or plate-like blade or a spiral blade is used as the stirring blade, but the present invention is not limited to this, and the blades (a) to (d) shown in FIG. 4 are appropriately selected. Furthermore, holes may be formed in these blades in consideration of the diameter and number according to the degree of stirring.
[0066]
In the first to fifth embodiments described above, the mixing of the powder and the liquid has been described as an example. However, the stirring and mixing device of the present invention is not limited to this, and the liquid inlet 50 is connected to the stirring and mixing device. It is also possible to mix the powder and the powder by introducing the powder, and the liquid and the liquid can be mixed by introducing the liquid from the powder introduction port 52. Furthermore, by introducing the liquid from the supply port 54, at least three component powder-powder-liquid and powder-liquid-liquid can be mixed.
[0067]
Next, the stirring and mixing method of the present embodiment will be described.
[0068]
In the stirring and mixing method of the present embodiment, for example, a stirring and mixing device 10 as shown in FIG. 1 is used. This is a stirring and mixing method with a liquid.
[0069]
Further, in another stirring and mixing method of the present embodiment, a mixed powder forming step of mixing two or more kinds of powders in advance to form a mixed powder, and the mixed powder and the liquid in the casing And stirring the mixture at the same time.
[0070]
For example, when a paste is mixed with a solvent to produce a first mixture and then a curing agent or the like is further added to the first mixture to produce a second mixture, the first mixture has a high content. When it is a viscosity, it was difficult to mix the curing agent more uniformly. However, if the two or more kinds of powders are mixed in advance by using the stirring and mixing method of the present embodiment, and the mixture with these powders is mixed with the liquid, it is significantly easier than the above method. become.
[0071]
In another stirring and mixing method of the present embodiment, the degree of stirring and mixing is changed as needed in the same flow path. Thereby, it is possible to mix uniformly by stirring roughly what is difficult to stir and then stir the coarsely stirred mixture next. Furthermore, after stirring closely, the state of the stirring mixture is adjusted by rough stirring, for example, defoaming can be performed from a mixture in which bubbles are mixed.
[0072]
The stirring and mixing apparatus and the stirring and mixing method of the present embodiment can be used for manufacturing silicone oil, silicone-based products such as silicone rubber, coatings, cosmetics, foods, and cements, for example. In particular, a highly viscous mixture similar to a commercially available kneader or the like can be produced. Furthermore, experiments have shown that even when the weight ratio of powder to liquid is about 1: 1, it is possible to mix uniformly.
[0073]
【Example】
Examples of stirring and mixing of powder and liquid using the stirring and mixing apparatus of the present invention will be shown below. The following examples are merely examples, and do not limit the scope of the present invention.
[0074]
Example 1.
Production of makeup foundation:
[Table 1]

[0075]
After the powder raw materials in Table 1 were previously pulverized and mixed, the oil was added and mixed to make 100 parts by weight of a bulk for foundation. Thereafter, 5 parts by weight of a liquid composed of 1,3-butylene glycol and purified water is supplied from the liquid inlet 50 of the mixing apparatus shown in FIG. 1 of the present invention, and 100 parts by weight of the bulk from the powder inlet 52, respectively. 12 and mixed by vibration stirring so as to be uniform. Subsequently, the obtained mixture was filled in a circular inner dish, press-molded, and dried at 50 ° C. for 9 hours. Drop test strength of the obtained pressed product (Solid powder cosmetic filled in the middle dish is mounted in a compact container, this compact container is dropped from a height of 50 cm onto a 2 cm thick plywood, and peeled off. Was measured). As a result, it was as good as 50 times.
[0076]
Example 2
Production of silicon polymer coated powder:
100 g of spherical silica US-10 (manufactured by Mitsubishi Rayon Co., Ltd., average particle diameter 10 μm) is supplied as powder from the powder inlet of the stirring and mixing apparatus of the present invention shown in FIG. 1, while 5 g of phenylpolysilane is supplied as liquid. It was dissolved in 65 g of toluene, supplied from the liquid inlet of the stirring and mixing apparatus of the present invention, and stirred with vibration for 1 minute to obtain a slurry. From this slurry, 30 g of toluene was distilled off at a temperature of 80 ° C. and a pressure of 6 kPa to obtain a phenylpolysilane-treated spherical silica that was uniformly dispersed in toluene and had fluidity. Next, when this phenyl polysilane-treated spherical silica-containing toluene phase and 35 g of water are respectively added to the stirring and mixing apparatus of the present invention and stirred by vibration, water is mixed with the phenyl polysilane-treated spherical silica-containing toluene phase and is fluid. Decreased. Thereafter, when 35 g of toluene and 30 g of water were distilled off at the same time, it was confirmed that the phenylpolysilane-treated spherical silica was almost agglomerated and had a spherical shape.
[0077]
Example 3
Production of liquid silicone rubber composition:
45 parts of a linear dimethylpolysiloxane (viscosity 10,000 cSt) blocked with dimethylvinylsilyl groups at both ends of the molecular chain, and 1,1,1,3,5,7,7,7-octamethyl-3,5 -3 parts of dihydroxytetrasiloxane was mixed, and further 55 parts of silicon powder (NIPSIL LP (registered trademark), manufactured by Nippon Silica) were mixed to prepare a premixed powder. Further, the premixed powder is supplied from the powder introduction port of the stirring and mixing apparatus of the present invention, while 116 parts of the dimethylpolysiloxane is supplied from the liquid introduction port of the stirring and mixing apparatus of the present invention. The temperature was gradually raised from 10 ° C. to 280 ° C. in accordance with the downstream, and a liquid silicone rubber base obtained from the discharge port was obtained. Furthermore, 25 parts of linear dimethylpolysiloxane, 3 parts of methylhydrogenpolysiloxane as a crosslinking agent, and 0.3 part of a 1% isopropyl alcohol solution of chloroplatinic acid as a platinum catalyst with respect to 100 parts of the obtained liquid silicone rubber base Then, 0.3 parts by weight of ethynylcyclohexanol as a reaction inhibitor was added and mixed, and cured at 120 ° C. for 10 minutes to produce a sheet. According to JIS-K-6301, the number of reciprocations was measured by reciprocating 100% at a rate of 300 times / powder (repeatedly extending between 0 and 100%) until the sheet specimen was broken. Durability fatigue was as good as 12.5 million times.
[0078]
As described above, the powder and liquid can be uniformly mixed by using the stirring and mixing apparatus of the present invention for the exemplified applications. As a result, it has been found that any of the above products has good performance. In addition to the above-mentioned uses, by using the stirring and mixing device and the stirring and mixing device of the present invention, any combination of powder and liquid, mixing ratio of any powder and liquid, and uniform stirring and mixing at any viscosity. Prepared mixtures and homogeneously reacted reactants can also be produced.
[0079]
【The invention's effect】
As described above, according to the present invention, for example, all kinds of powders and liquids can be easily and uniformly mixed by vibration stirring.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing the configuration of a stirring and mixing apparatus according to Embodiments 1 and 2 of the present invention.
FIG. 2 is a diagram for explaining a double packing structure of the stirring and mixing apparatus according to the third embodiment of the present invention, and is an enlarged cross-sectional view of a portion A in FIG.
FIG. 3 is a schematic view showing a casing partial configuration of a stirring and mixing apparatus according to Embodiment 4 of the present invention.
FIG. 4 is a diagram showing an example of a stirring body used in the stirring and mixing device according to Embodiment 4 of the present invention.
FIG. 5 is an enlarged schematic view of the powder introduction side in the stirring and mixing apparatus according to Embodiment 5 of the present invention.
FIG. 6 is a schematic diagram showing a configuration inside a casing of a stirring and mixing device according to a fifth embodiment of the present invention.
7 is a cross-sectional view taken along line AA ′ of FIG.
FIG. 8 is a cross-sectional view taken along line BB ′ of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Agitation mixing apparatus, 12 Casing, 14 Shaft part, 16 Agitation blade, 18, 32 Motor, 20 Liquid storage tank, 22 Pump, 24 Liquid, 30 Powder introduction pipe, 34 Powder, 36 Introduction body, 40, 42, 44,46 Valve, 50 Liquid inlet, 52 Powder inlet, 54,56 Supply port.

Claims (11)

A casing provided with a flow passage through which fluid is circulated;
An agitator comprising a shaft portion disposed in the casing and connected to a vibration source and a stirring blade attached around the shaft portion;
Two or more inlets for introducing liquid or powder into the casing ;
In the casing, one or more stirring chambers in which the flow path is partitioned by a partition plate;
And at least two packings disposed in the casing that allow liquid outflow from the vibration source side while preventing fluid from entering the vibration source,
At least one of the stirring chambers is a preliminary stirring chamber in which the introduction port is provided,
The packing is provided between the vibration source and the preliminary stirring chamber,
The stirring and mixing device, wherein the partition plate is provided with one or more holes. In the stirring and mixing apparatus according to claim 1,
Furthermore, the stirring blade is provided with one or more holes in the stirring blade. In the stirring and mixing apparatus according to claim 1 or 2,
An agitation and mixing apparatus, wherein the number of holes and / or the size of the holes are changed depending on the position of the partition plate and / or the agitation blade, and the agitation degree inside the casing is changed for each agitation chamber . In the stirring and mixing apparatus according to claim 1 or 2,
Further, the stirring blade of each location, stirring and mixing apparatus characterized by being formed is selected from a plurality of blades of different shapes of stirring area. A casing provided with a flow passage through which fluid is circulated;
An agitator comprising a shaft portion disposed in the casing and connected to a vibration source and a stirring blade attached around the shaft portion;
A powder inlet provided in the casing for introducing powder into the casing;
A liquid inlet provided in the casing adjacent to the powder inlet for inserting liquid into the casing;
A powder introduction tube attached to the powder introduction port;
Having at least two packings disposed in the casing that allow liquid outflow from the vibration source side while preventing fluid from entering the vibration source;
The liquid inlet is located above or below the powder inlet, and is provided in a space formed between the two packings so that the liquid can be introduced. Stirring and mixing device. In the stirring and mixing apparatus for powder and liquid according to claim 5,
The powder and liquid stirring and mixing apparatus, wherein the powder introduction port and the liquid introduction port are provided in either the upper part or the lower part of the casing. In the stirring and mixing device of the powder and liquid according to claim 5 or 6,
Furthermore, a pre-stirring mixing chamber that can communicate with other parts of the casing is provided at the upper or lower portion of the casing,
The powder and liquid stirring and mixing device, wherein the powder introduction port and the liquid introduction port are provided in the preliminary stirring and mixing chamber above or below the casing. In the stirring and mixing apparatus for powder and liquid according to claim 7,
An apparatus for stirring and mixing powder and liquid , wherein at least one type of stirring blade of a plurality of shapes is attached around the shaft portion of the stirring body. The powder using the stirring and mixing device according to claim 1 or 5, wherein the powder and the liquid are introduced simultaneously or intermittently into the stirring and mixing device according to claim 1 or 5, and are vibrated and stirred. A method of stirring and mixing the body and liquid. In the stirring and mixing method of the powder and liquid according to claim 9, a mixed powder forming step of forming a mixed powder by mixing two or more kinds of powder in advance,
Introducing the mixed powder and the liquid into the casing at the same time or intermittently to vibrate and stir;
A method of stirring and mixing powder and liquid. 10. The stirring and mixing method of powder and liquid according to claim 9, wherein the stirring degree is changed at any time in each stirring body in the same flow path through which the fluid flows.

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