JPH08173785A - Agitating device - Google Patents

Abstract

PURPOSE: To reduce a load on a vibration vane plate to prevent a break of a vibration bar and the vibration vane plate, in an agitating device including a vibration generating device with a vibration motor and a vibrating agitation means with a vibration vane part, by providing a connection point between the vibration generating device of a specific range and a vibration bar with a vibration stress dispersing means. CONSTITUTION: A basic vibration member 2 provided with a drive motor 1 is attached on a supporting frame with springs 5 above a frame 6 mounted on an agitation tank 7. A vibrating agitation means including vibration vanes 9, which are mounted to a vibration bar 8, which vibration in the tank 7 in association with a vibration generating device including the motor 1, in one or more stages in non-rotatable relationship, is installed. And as the motor 1, a motor, which can generate any vibration in the range of 10-500Hz by means of an inverter, is used. And a connection point 4 between the vibration generating device and the bar 8 is provided with a rubber ring, as a vibration stress dispersing means, having a length 3-8 times the length of the bar 8 and having a diameter 1.3-3.0 times the diameter of the bar 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a stirring device for mixing, dispersing, reacting, emulsifying and defoaming a fluid which is a liquid, a powder or a mixture thereof in a container, and stirring for degreasing and cleaning articles. The present invention relates to a stirring device for permeating a device or an article. That is, the present invention is to stir a fluid such as a fluid such as a liquid, a powder or a mixture thereof in a container such as a tank or a mixing tank included in a production line in a container for performing dispersion, washing, defoaming, etc. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, a rotary type is mainly used for manufacturing many chemical products such as cosmetics, foods, medicines, dyes, paints, inks, adhesives, surface treatment such as degreasing, plating, and stirring and mixing during fermentation reaction. Although the stirrer with blades has been used for a long period of time, it has various drawbacks, and after stirring, many dispersing machines such as a roll mill, a sand grinder and a colloid mill are additionally used as dispersing means to perform dispersion.

Conventionally, there are the following types of agitation mixers. (1) Rotating stirring blade, for example, one in which the central axis of the container and the stirring axis are aligned, one in which the stirring shaft is inclined, or one in which the stirring shaft is provided on the side wall, (2) the container itself is moved Things, for example, those that take means such as rotating a cylindrical container, (3) those that make the liquid flow, for example,
Using pumps, nozzles, orifices, (4) Blowing air, for example, jetting air from the bottom of the tank with nozzles, (5) Vibrating the liquid itself, for example, using ultrasonic waves, etc. There is. Among these, the one in which the stirring blade is rotated is industrially very often used, and then the stirring by the pump is used.

The conventional rotary bladed agitator has the following drawbacks. When it is desired to uniformly mix the liquid and the insoluble fine particle powder, there is a defect that the powder and the liquid are separated in a short time when the stirring is stopped. If it is difficult to stir at the bottom of the container,
Precipitation may occur without complete dispersion. A large load resistance is initially applied in order to rotate and flow the whole liquid, and extra power is required in the starting period. By gradually adding the liquid, it is possible to stir with uniform electric power, but a swirl flow is generated in the central part, and it is easy to entrain air, and it is easy to chemically affect the liquid to be stirred. When mixing powders,
Even if the powder is gradually added, uniform mixing cannot be performed, and when the immersed portion is small, idling or the like may occur, and it is always necessary to check the liquid amount. Further, since the rotary blades have a laminar flow in a stirrer or a pump, a considerable part of the power used for stirring is used only for mutual friction, and the system cannot be sufficiently turbulent.
Speaking of rotation speed, it is generally difficult to rotate at high speed,
It is often stirred slowly. Since it is about 300 revolutions / minute, stirring and mixing requires a long time. When dispersing an insoluble powder in a liquid, the time required for mixing becomes longer. In order to uniformly stir the contents of a relatively large tank, it is necessary to arrange several stirrers with rotary blades side by side. When using a circular container, efforts are being made to increase the mixing efficiency by attaching a special rotation blocking plate such as a baffle plate to the wall surface.

Therefore, the inventor of the present invention has proposed a fluid in which a vibrating blade plate, which is urged by axial vibration of a vibrating shaft, is fixed to a vibrating rod projecting from the vibration generator main body into the stirring tank in a one-stage or multi-stage non-rotatable manner. The stirring device of No. 6-71544,
It was proposed as Japanese Patent Application No. 5-245950.

However, even when the vibration is about 10 to 60 Hz, the vibration stress is concentrated near the contact portion between the vibration generator and the vibrating rod, and the vibrating rod sometimes breaks, causing an accident. The plate often breaks near the contact point with the fixing member, often requiring replacement of the vibrating blade plate. For this reason, it was practically impossible to increase the vibration frequency of 50 Hz or higher to stir vigorously for a long time. Of course, it was not possible to sufficiently stir the highly viscous liquid.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a stirring device for mixing, dispersing, washing, defoaming, degreasing, dipping, emulsifying, reacting, etc., in the vicinity of the connecting portion between the vibration generator and the vibrating rod. The purpose is to provide a stirring device that disperses the generated vibration stress, reduces the load on the vibrating blade plate, and does not damage the vibrating rod or the vibrating blade plate even if the vibration frequency is increased, and that can withstand long-term use. .

[0008]

SUMMARY OF THE INVENTION The present invention relates to a vibration generating device including a vibration motor and a vibration blade portion linked to the vibration generating device and fixed to a vibrating rod that vibrates in a stirring tank in one or more stages so as not to rotate. In a fluid agitator including an agitator, the vibration motor is driven by an inverter for 10 to 500H.
The present invention relates to a fluid agitator capable of generating an arbitrary vibration during z and having a vibration stress dispersion means at a connecting portion between the vibration generator and the vibration rod.

The fluid of the present invention may be any of liquid, powder, granule and the like, and may be a mixture thereof.

Examples of the vibration stress dispersion means in the present invention include the following means.

In one vibration stress dispersion means, at the connecting portion between the vibration generator and the vibrating rod, the rubber ring provided around the vibrating rod below the vibration generating device has a length longer than the diameter of the vibrating rod. Usually, the diameter of the vibrating rod is 3 to 8 times, and the thickness thereof is 1.3 to 3.0 times, especially about 1.5 to 2.5 times larger than the diameter of the vibrating rod. From another point of view, when the diameter of the vibrating rod is 10 to 16 mm, the thickness of the rubber ring is preferably 10 to 15 mm, and when the diameter of the vibrating rod (round bar) is 20 to 25 mm. It is preferable that the rubber ring has a wall thickness of 20 to 30 mm. For example, as shown in FIG. 4, when connecting the vibrating rod 8 to the vibration transmitting member 3, the vibrating rod 8 is passed through a predetermined hole of the vibration transmitting member 3 and the ends of the vibrating rod 8 are attached to the nuts 12, 13 ,. The washer ring 16 is used for fixing, while on the other side of the vibration transmitting member 3, the rubber ring 18 is inserted into the vibrating rod 8 and fixed with the nuts 14, 15. In the case where the rubber ring 18 is not used, there is a problem that the vibration stress concentrates near the joint between the vibration transmitting member and the vibration rod, and the vibration rod is easily broken. By doing so, it was completely resolved. Especially, the frequency is 100Hz without using the rubber ring.
When the height was increased above, the vibrating rod was often broken, but the vibration frequency can be increased without this concern.

The rubber ring is made of hard natural rubber, hard synthetic rubber, synthetic resin, etc., having a Shore A hardness of 80 to 120,
Preferably, it can be composed of 90 to 100 hard elastic bodies. Particularly, a hard urethane rubber having a Shore A hardness of 90 to 100 is preferable in terms of durability and chemical resistance.

Another vibrating stress distributing means is to insert a metal wire bundle between the vibrating device and the vibrating rod at the connecting portion between the vibrating device and the vibrating rod. For example, as shown in FIG. 5, the vibration transmitting member 3 (or the vibration basic member)
When the vibrating rod 8 is connected to, the auxiliary vibrating rod 8'and the metal wire bundle 23 are interposed. In some cases, the metal wire bundle 23 may be directly connected to the vibration transmitting member 3 without using the auxiliary vibration rod 8 '. Specifically, one end of the auxiliary vibrating rod 8'is attached to the nuts 12, 12 ', 13, 1
3 ', washer rings 16 and 16' are fixed to the vibration transmitting member 3, and a nut 19 and a connecting ring 20 are attached to the other end.
The one end of the metal wire bundle 23 was connected via the, and the vibrating rod 8 was connected to the other end of the metal wire bundle 23 using the connection ring 21 and the nut 22. As a result, the same effect as when the rubber ring is used can be obtained.

The metal wire bundle is of a type whose structure is often used as a cable for a suspension bridge, and is a bundle of many metal single wires or metal stranded wires from the outside at the ends. A metal coating is used. The connection between the metal wire bundle and another object can be achieved by cutting a screw on the metal coating portion.

The size of the metal wire bundle is about the same in diameter as the vibrating rod, and the length is such that the upper and lower metal wire bundles do not come into contact with each other by the covering portions of the upper and lower metal wire bundles or the connecting rings attached to the covering portion. If there is

The vibration is performed by a vibration motor or the like which generates a vibration of 10 to 500 hertz (Hz), preferably 20 to 400 hertz (Hz), and particularly preferably 50 to 300 hertz (Hz). The relationship between the output of the vibration motor and the stirring capacity is approximately as follows for a normal aqueous solution.

[Table 1] Output of vibration motor Agitation capacity 75W (200V, 3 phase) to 200 liters 150W (200V, 3 phase) 200 to 350 liters 250W (200V, 3 phase) 350 to 800 liters 400W (200V, 3 phase) 800 1500 liters 750W (200V, 3-phase) from 1,500 to 2,500 liters Note that it is thoroughly stirred things capacity of 100 m ³ if the motor output to 3KW.

Usually, the vibration motor is set on a stirring tank, on the side wall of the stirring tank, or on a solid floor with a stand. When the tank is thin (stainless steel tank 5 mm or less) and vibration can be transmitted to the side wall or floor of the tank due to vibration of the liquid, it is preferable to install a stand outside the tank. The thickness of the tank is 5
When it is less than or equal to mm, a reinforcing member may be attached to the side wall of the tank in such a manner as to tighten the band, and the vibration device may be installed there. The vibration generated by the vibration motor is transmitted to the vibration rod via the basic vibration member. In this case, it is preferable that the vibration motor is usually set so as to be suspended below the basic vibration member (see FIG. 1). By doing so, the center of gravity can be lowered, and the occurrence of side shake can be reduced.

The vibration generator according to the present invention is usually a vibration motor (including electric motors, air motors, etc.).
Has adopted a system that vibrates the basic vibration member and the vibration transmission member. When stirring a system containing a flammable organic solvent, a vibration-proof type vibration motor is used. Further, a vibration generating means such as an electromagnetic magnet or an air gun may be used instead of the vibration motor.

For example, as shown in FIG. 1, a pedestal 6 is placed on an agitation tank 7 via an elastic body 11, and a basic vibrating member 2 is provided on a supporting frame with a spring 5 on which a vibrating motor is mounted. Install 1. The vibration may be attached above the basic vibration member, but if it is attached below the vibration generating source, the center of gravity of the vibration generation source is lowered, and unnecessary side shake can be prevented. In FIG. 1, the vibration motor 1 is located below the basic vibration member 2 and above the vibration transmission member 3, but if it is a place where it does not interfere with the vibration transmission member 3, it is suspended below the vibration transmission member 3. You can also lower it. Further, as shown in FIG. 2, a vibration motor may be attached to the lower part of the basic vibration member 2 and two vibration rods 8 may be attached to both sides of the vibration motor. In this case, the vibration transmitting member 3 is unnecessary and the size can be reduced. The vibration motor 1 does not necessarily have to be provided on the stirring tank 7, and the basic vibration member or the vibration transmission member is extended to the outside of the stirring tank, and the vibration motor is attached to the upper side or the lower side of the extended basic vibration member. Vibration can also be transmitted to the vibrating rod.

The non-rotating vibrating blade portion is composed of a vibrating blade plate and a vibrating vane plate fixing member, or a plurality of vibrating vane plates are stacked, or a vibrating vane plate and a vibrating vane plate fixing member are integrally formed. Can be used.

The vibrating vane plate may preferably be made of thin metal, elastic synthetic resin, rubber or the like. However, due to the vertical vibration of the vibrating motor, at least the tip of the vane plate is subjected to the flutter phenomenon (wave (Striking state)
It is a thickness capable of imparting flow to the system in addition to vibration. Titanium, aluminum, copper, steel, stainless steel and alloys thereof can be used as the material of the metallic vibrating vane. As the synthetic resin, polycarbonate, vinyl chloride resin, polypropylene or the like can be used. The thickness is not particularly limited in order to transfer vibration energy to enhance the effect of vibration, but generally 0.2 to 2 mm for metal and 0.5 for plastic.
10 mm is preferable. If it becomes too thick, the effect of vibration stirring decreases.

When an elastic synthetic resin, rubber or the like is used as the material of the vibrating blade plate, the thickness is not particularly limited, but generally 1 to 5 mm is preferable, but in the case of metal such as stainless steel, 0.2 to 1 mm, for example. It is preferably 0.5 mm. Moreover, the amplitude of the diaphragm is 2 to 30 mm,
It is preferably 5 to 10 mm.

The vibrating blade portion can be attached to the vibrating shaft in a single stage or in multiple stages. When the vibrating blades are provided in multiple stages, 5 to 7 are preferable depending on the size of the vibration motor.
When increasing the number of stages of the multistage, if the load of the vibration motor is increased, the vibration width may be reduced and the vibration motor may generate heat. The vibrating blade may be integrated. The angle of the vibrating blade may be horizontal with respect to the vibrating axis, but it is preferable that the inclination angle α (see A in FIG. 11) be inclined at 5 to 30 degrees, particularly 10 to 20 degrees so that the vibration has directionality (FIG. 1).

The vibrating blade plate can be formed by sandwiching the vibrating blade plate from both upper and lower sides with a vibrating blade plate fixing member and fixing it to the vibrating rod. Further, as shown in FIG. 11, it is preferable that the vibrating blade plate fixing member 10 and the vibrating blade plate 9 are integrally inclined and / or bent when viewed from the side surface of the vibrating shaft. Even when it is bent, it is preferable to have an inclination of 5 to 30 degrees, especially 10 to 20 degrees, as described above. It is effective that the vibrating blade plate and the fixing member for the vibrating blade plate have the same inclination and / or curved surface in order to disperse the vibration stress. Breakage can be avoided.

The vibrating blade plate and the fixing member for the vibrating blade plate can also be manufactured by integrally molding using, for example, plastics (see C in FIG. 11). In this case, as compared with the case where the vibrating blade plate and the fixing member for the vibrating blade plate are used separately, it is possible to avoid the drawback that the object to be treated infiltrates and adheres to the joint portion and takes time to clean. . Further, as shown in FIG. 11, since the blade plate and the fixing member are integrated with each other, a step in thickness does not occur and stress concentration can be avoided, so that damage to the blade plate can be avoided.

On the other hand, if the vibrating vane plate and the vibrating vane plate fixing member are made separately, only the vibrating vane plate can be replaced, but an integrally molded one can also be replaced. In this case, the vibrating blade plate, the fixing member for the vibrating blade plate, and the integrally molded product are not limited to plastics, and various materials described above can be used. When the vibrating vane fixing member 10 is used, the vibrating vane plates are sandwiched between the upper and lower sides, and as shown in FIG. 12A, the fixing members are different in the upper and lower sides. It is also possible to disperse the vibration stress.

As another modification, as shown in FIG.
As shown in 2b, the play 32 can be provided on one or both of the upper and lower sides of the tip portion of the fixing member 10, whereby the stress can be dispersed as in the case of (a). If necessary, the play 32 may be supplemented with a rubber member to absorb vibration, and the service life of the vane plate and the fixing member may be extended. Further, as shown in FIG. 13, vibrating blade plates having different dimensions may be laminated (not bonded to each other) using a thin blade to form a fixing member / vibrating blade plate. In this case, the size of the diaphragm is
As shown in FIG. 3 (a), by making it smaller toward the lower stage, the entire thin blade can be vibrated as a unit and the fixing member can be replaced by a nut. These means
Both contribute to disperse the stress applied to the vibrating blade plate. FIG. 13B is a modification thereof.
Also in this case, it is effective for dispersion of vibration stress. Further, the vibrating blade plate may be formed into various shapes such as those shown in FIGS.

The vibrating blade portion composed of the vibrating blade plate or the fixing member for the vibrating blade plate can be fixed to the vibrating rod by using a nut. When a large number of vibrating blades and / or fixing members for vibrating blades are attached to a vibrating rod, they are fixed with nuts 29 as shown in FIG. By inserting one or a plurality of spacers 30, the spacing between the vibrating vane plate and / or the vibrating vane plate fixing member can be easily made constant.

Various shapes can be adopted for the shape of the vibrating blade plate (or the vibrating blade portion). One example thereof is shown in FIGS. In these cases, it is preferable to provide the cutout portion 27. However, if the cutout portion 27 extends to the fixing member 9, the fixing member 9 tends to be damaged, so that the connecting portion 28 as illustrated is left. It is preferable that the cutouts are formed in a V shape. The vibrating blade plate does not have to be symmetrical about the vibrating rod, and the vibrating blade plate may be provided on only one side.

When the vibrating blade section is inclined and / or bent, the lower one of the many vibrating blade sections is used.
It is also possible that two sheets have a downward slope and / or a curved line, and the other two have an upward slope and / or a curved line (see FIG. 1). By doing so, the bottom of the stirring tank can be sufficiently stirred, and it is possible to prevent a pool from being generated in the lower portion.

When it is not desired to stir only the bottom of the stirring tank, it can be dealt with by removing the downwardly curved vibrating blade plate. In the case where the reaction proceeds by stirring, it is convenient to collect the reaction-completed portion in the lower portion and take it out from the lower portion without diffusing it.

In the above description, the case where there is one vibrating rod has been described, but it is needless to say that there may be a plurality of vibrating rods, and the use of multiple axes is effective for stirring in a large stirring tank. is there.

When it is desired to positively generate convection in the system by vibrating agitation and prevent accumulation in the lower part of the agitation tank, as shown in FIG. A vibrating blade plate having a bend (of course including a case where a fixing member is used, the fixing members and nuts are all omitted in the drawings in FIGS. 12 to 15).
Can be achieved by providing all the other vibrating rods with vibrating vanes having downward tilted bends.

In addition to the type in which a large number of vibrating vanes are independently provided for each vibrating rod, a type in which a large number of vibrating vanes are connected across two or more vibrating rods (hereinafter referred to as a connecting type vibrating vane part). It may be). For example, FIG. 15 shows a plurality of vibrating blade plates 9 between two vibrating rods 8, 8.
9 ... is provided.

The vibrating blade plate in this case may be horizontal or inclined, and the vibrating blade plate may be flat or curved. Is as described above (see A and B in FIG. 17).

In addition, the lower vibrating vanes and the other vibrating vanes can be tilted and / or bent downward and upward, respectively. It is not different (see B in FIG. 17).

Two pairs of connecting type vibrating blades as shown in FIG. 15 may be provided on both the left and right sides of the stirring tank, and the left or right vibrating blade plate may be tilted or bent upward. It is also possible to promote convection in the stirring tank by making all of them downward.

FIG. 16 shows a case in which a stand-alone vibrating blade portion (stand-alone vibrating blade plate) and a connection-type vibrating blade plate are provided in combination.

The degree of the "bending phenomenon" of the vibrating blade plate caused by the vibration of the vibrating blade portion is
Since it varies depending on the length and thickness of the vibrating blade plate, the viscosity of the object to be agitated, the specific gravity, etc., it is preferable to select the length and thickness that most "flex" at a given frequency. When the frequency and the thickness of the vibrating vane plate are kept constant and the length of the vibrating vane plate is changed, the degree of bending of the vibrating vane plate is as shown in FIG. As the length increases, it grows up to a certain stage, but if it exceeds it, the bend becomes smaller, and at some length, the bend becomes almost non-existent, and if the vibrating blade plate is made longer, the bend becomes larger again. It turned out that I would repeat. A model of this situation is shown in FIG.

Therefore, the length of the vibrating blade plate (the length of the portion before the fixing member) is preferably selected to be the length showing the first peak or the length showing the second peak. Is preferred. Whether to make the length showing the first peak or the length showing the second peak can be appropriately selected depending on whether the system vibration is strengthened or the flow is strengthened. When the length showing the third peak is selected, the vibration width becomes small and the application is limited.

SUS at a frequency of 37 to 60 Hz and 75 KW
When the length showing the first peak and the length showing the second peak were obtained for various thicknesses of 304-made diaphragms, the following results were obtained.

[Table 2] The length in this experiment is indicated by the length from the tip of the fixing member for the vibrating blade plate to the tip of the vibrating blade plate (the length of m in A of FIG. 11), and Length to the tip of the fixing member (n in A of FIG. 11)
Is 27 mm, and the inclination angle α of the vibrating vane is upward 1
This is the case of 5 °.

Although the preferable range of the thickness of the vibrating blade plate varies depending on the viscosity of the object to be treated and the vibration conditions, the thickness of the vibrating blade plate should be such that the vibrating blade plate can be sufficiently bent like a blade without breaking. However, the efficiency of vibration stirring can be increased.

From this point, it is presumed that the vibrating vane greatly contributes to the flow of the system, and the fixing member for the vibrating vane contributes to the vibration of the system.

In order to fix the vibrating rod to the vibrating rod, a nut (often omitted in the figure) may be used to fix the vibrating blade portion such as the basic vibrating member or the vibration transmitting member. Alternatively, a stopper ring can be used. An example of the stopper ring 41 is shown in FIG. It is preferable to use the elastic body 45 at a portion that comes into contact with the vibrating blade portion such as the vibrating blade plate or the fixing member for the vibrating blade plate because the fixation is stable. In the figure, 42 is the stopper ring body,
43 is a screw. Since the length of the vibrating rod in the liquid can be changed by moving the vibrating rod up and down by using the stopper ring, the length of the vibrating rod can be arbitrarily adjusted according to the size of the vibrating tank. Further, the vibrating rod can be easily replaced with plastic or the like rather than metal. As described above, the fact that the stirring means such as the vibrating rod and the vibrating blade can be easily changed depending on the property of the liquid in the vibrating tank cannot be achieved by the conventional rotary stirrer.

Further, in the present invention, the vibration generator and the stirring tank are three or more, preferably four, support rods vertically extending downward from the vibration generator shown in FIGS. It is preferable that the support rods extending vertically upward from the stirring tank side and the springs surrounding the upper and lower support rods are engaged with each other. Particularly, it is preferable that the upper and lower support bars are kept in a non-contact state by the spring. As a result, even if lateral vibration occurs in the vibration generating device, the lateral vibration can be properly absorbed by the above-mentioned engaging portion, and it is possible to prevent the occurrence of undesired lateral vibration in the entire device and the accompanying noise. it can.

A vibrating agitator having this lateral shake prevention mechanism is shown in FIGS. 1, 2, 21, and 22. An enlarged view of the lateral shake prevention mechanism in these figures is shown in FIG. In the figure, 5 is a spring, 46 is a stirring tank or a pedestal or reinforcing member provided therein, 47 is a support rod extending vertically below the basic vibration member or vibration transmission member, and 48 is the above-mentioned 4
6 is a supporting rod extending vertically above 6.

The embodiments of the present invention are listed below. 1. A vibration stirring device including a vibration generating device including a vibration motor and a vibration stirring device which is linked to the vibration generating device and is fixed to a vibrating rod that vibrates in a stirring tank in a non-rotatable manner in one or multiple stages. Is capable of generating an arbitrary vibration between 20 and 500 Hz by an inverter, and at a connecting portion between the vibration generator and the vibrating rod,
A fluid agitation device comprising a vibration stress dispersion means. 2. The fluid stirring device according to the above 1, wherein the vibration stress dispersion means has a rubber ring inserted around the vibration rod at the lower part of the vibration generator at the connecting portion between the vibration generator and the vibration rod. 3. The fluid stirring device according to the above 1 or 2, wherein the vibrating blade plate of the vibrating blade portion is selected such that the length and thickness of the vibrating blade plate are such that it can be shaped like a blade in a stirring tank. 4. The fluid stirring device according to the above 2 or 3, wherein the rubber ring has a wall thickness equal to or greater than the diameter of the vibrating rod and a length equal to or greater than the diameter of the rubber ring. 5 The rubber quality of the rubber ring has a Shore A hardness of 80.
The fluid agitator according to the above item 4, which is from 100 to 100. 6. The fluid stirring device according to the above item 1, wherein the vibration stress dispersion means divides the vibration rod at a connection portion between the vibration generator and the vibration rod, and inserts a metal wire bundle between them. 7 When the vibrating blade part makes the right angle direction of the vibrating rod 0 °,
7. The fluid stirring device according to the above 1, 2, 3, 4, 5 or 6, which is inclined 5 to 30 ° in the (+) or (−) direction. 8 The above-mentioned vibrating stirring means is one in which one or a plurality of vibrating rods having a large number of vibrating blades are projected in the stirring tank, and the fluid of the preceding paragraph 1, 2, 3, 4, 5, 6 or 7 Stirrer. 9. The fluid stirring device as set forth in the preceding item 8, wherein the vibrating blade portion is curved. 10. The fluid stirring device according to item 8 or 9, wherein the number of the vibrating rods is two, the vibrating blade portion of one vibrating rod is inclined upward, and the other vibrating blade portion is inclined downward. 11 The lower 1 to 3 of the vibrating blades have a downward slope or bend.
A fluid stirring device as described. 12 The vibrating and stirring means is composed of at least one connecting type vibrating blade portion in which a large number of vibrating blade portions are fixed in parallel with a large number of vibrating rods, the above 1, 2, 3, 4, 5, 6, or 7
A fluid stirring device as described. 13 Two sets of the connecting type vibrating blades are provided in the stirring tank, one set of the vibrating blades is inclined upward, and the other set of the vibrating blades is inclined downward. A fluid stirring device as described. 14. The fluid stirring device as set forth in the preceding item 12, wherein in the connecting type vibrating blade section, the lower one to three sets of the vibrating blade sections have a downward inclination or a bend. 15 In the connection type vibration blade portion, the lower one to three sets are not connection type, but are independent type vibration blade portions individually fixed to respective vibration rods.
4. The fluid stirring device according to 4. 16 When vibrating the vibrating rod with the vibration generator,
The vibrating motor is attached to the lower side of the basic vibrating member in the above 1, 2, 3, 4, 5, 6, 7, 8, 9, 1
The fluid stirring device according to 0, 11, 12, 13, 14 or 15. 17 The vibration generator and the stirring tank are three or more support rods extending vertically downward from the vibration generator, and correspondingly, springs surrounding the support rods and upper and lower support rods vertically extending upward from the stirring tank side. The above 1, which is engaged by
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
A fluid agitating device according to 13, 14, 15 or 16. 18. The fluid stirring device according to item 17, wherein the upper and lower support rods are held in a non-contact state by the spring. 19 The above-mentioned 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 in which the vibrating blade portion is of a vibration stress dispersion type
The fluid stirring device according to 1, 12, 13, 14, 15, 16, 17 or 18. 20 The vibration-stress-dispersion type vibrating blade portion is of a type in which (a) the vibrating blade plate and the fixing member have the same inclination or bending (b) without separating the vibrating blade plate and the fixing member. Type that is integrally molded, and becomes thicker continuously from the vicinity of the vibrating rod toward the tip. (C) A plurality of vibrating vane plates are stacked, and the vibrating rod is fixed with a nut or nut. , Which is selected from the group consisting of types fixed to
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1
A fluid agitating device according to 4, 15, 16, 17, 18 or 19.

[0048]

【Example】

Example 1 (1) Vibration stirring device The vibration stirring device shown in FIGS. 20 is a top view, FIG. 21 is a sectional view taken along line XX of FIG.
FIG. 21 is a sectional view taken along line YY of FIG. 20. Details of the connection part are shown in Fig. 3.
It is as follows. Vibration motor 1 is 250W / 200V
As the stirring tank 7, a 500-liter stainless steel tank was used. The vibrating rod 8 had a diameter of 19 mm. The dimensions of the vibrating blade are as shown in FIG.
In FIG. 23, a is a plan view and b is a sectional view. Stainless steel was used for each of the seven stirring blade plates (thickness 0.5 mm) and the stirring blade plate fixing member (thickness 2 mm). The length of the portion where the vibrating blade plate protrudes from the fixing member was 70 mm, and both the fixing member and the blade plate were inclined at 15 °. Six sheets from the top were inclined upward, and only the bottom one was inclined downward. As the rubber ring 18 in the connecting portion 4, a cylindrical shape made of hard polyurethane rubber was used. The size is height 75mm, outer diameter 50mm, central hole diameter 2
It is 0 mm. The rubber ring 18 was fastened from the bottom with double nuts 14 and 15, and the top was fixed to the basic vibration member with a double nut. Vibrating blade plate fixing member 10,
The space between 10 is maintained and adjusted by inserting two spacers (in this example, made of stainless steel) into the vibrating rod 8. (2) Product to be processed Large gear 700 mmφ × 40 mm gear has a large amount of candy-like grease mainly composed of aluminum metal soap with high viscosity adhered to the surface and inside. (3) Degreasing agent Strong alkaline aqueous degreasing agent Techno Clean # 3000 [manufactured by Nippon Techno Co., Ltd. (containing alkali builder and surfactant as main components)] 10%. (4) Test method (pH 14, degreasing bath temperature 70 ° C.)

[Table 3] (5) Evaluation of Stirrer In this way, this device was continuously used for one month, but there was no abnormality in the vibrating rod. By the way, the rubber ring 18
When this device was operated without using, the vibrating rod was damaged within 1 to 2 days even at 50 Hz. When the fixing member was not angled but only the vibrating blade plate was angled (15 °), the 0.5 mm stainless steel plate cracked within one month. There were no cracks in the material. These differences became larger as the vibration frequency was increased.

[0049]

【effect】

(1) According to the inventions of claims 1 to 3, the vibrating rod can be used for a long time even at a high frequency without breaking the vibrating rod by adopting the vibrating stress dispersing means. Also, the frequency is 40H
In the case of z or less, it can be used for a considerably long time without a vibration stress dispersion means, but when the frequency becomes higher than 50 Hz and becomes higher than 100 Hz,
Although the vibrating rod breaks in the vicinity of the connection portion in a short period of time, by attaching the vibration stress dispersion means of the present invention, the vibrating rod can be used without breaking for a long period of time. When the frequency is low, it is difficult to process a high-viscosity product, but when a frequency of 50 Hz or higher is used, the viscosity of the object to be processed is 600 c.
Even if it is Ps or more, those up to about 10,000 cPs can be sufficiently mixed and dispersed. (2) The invention of claim 4 is a vibration generating source, and by lowering the position of the vibration motor having the largest weight, the center of gravity of the vibration generating device is lowered, so that the lateral vibration of the entire device is reduced and the vibrating rod is reduced. The life of can be further extended. (3) The invention of claim 5 extends the life of the vibrating blade plate,
Since it acts to give direction to the vibration stirring, convection phenomenon can be easily generated in the tank. (4) According to the invention of claim 6, it is possible to reduce lateral vibration of the vibration motor and to reduce noise of the vibration motor. (5) Not only a low-viscosity liquid but also a high-viscosity liquid up to about 10,000 cPs can be stirred. (6) In the inventions of claims 7 to 8, since the lateral shake prevention device is provided between the vibration generator and the stirring tank, the noise generated by the lateral shake can be significantly suppressed, and the device can be broken. Scratches can also be minimized. (7) In the inventions of claims 9 to 10, the structure of the vibrating blade portion is also a vibration stress dispersion type, so that damage to the vibrating blade portion is reduced and continuous operation for a long time is enabled. (8) In addition to the effects described above, the present invention has the following effects associated with vibration stirring. Conventional propeller type agitation is based on shearing force, so it is possible to agitate only within the range of shearing force, but with vibrating agitation, the system is uniformly agitated by simultaneously generating vibration and flow. can do. The energy required for stirring is extremely small compared to the case of the propeller type stirring method. (According to the present invention, 1t
The aqueous solution can be stirred with a vibration motor of 400 W and the aqueous solution of 200 liters can be stirred with a vibration motor of 75 W, but a rotary blade type agitator requires a motor in KW units. Although the conventional stirring method has a drawback that air is entrained in the system with stirring, such a phenomenon does not occur at all by vibrating stirring. According to the prior art, even with respect to a liquid in which foam is generated, foaming does not occur in the vibrating stirring of the present invention, and good stirring can be performed. For example, alkaline liquids, degreasing detergents, etc. could not be sufficiently stirred or could not be used in a system containing a surfactant because a large amount of bubbles were generated by conventional propeller type stirring or aeration. According to the invention, there is no such problem. Since the liquid can sufficiently flow into and out of the concave portions of articles having fine holes and complicated irregularities, it can be effectively used for cleaning connectors, bottles, injection needles and the like. The gas generated in chemical reaction, electrolysis, plating, electric field degreasing, etc. can be quickly released out of the system. Further, the same plating film thickness can be formed in about half the time. In the conventional propeller type stirring, pump flow stirring or gas stirring, when trying to disperse or dissolve the fine powder in the liquid, a large amount of residue or sedimentation solidification occurred, but according to the present invention, The dissolution and dispersion of the fine powder in the liquid can be carried out very smoothly. The fine powder can be efficiently dispersed in the liquid. Fine powders and fine particles of different types can be blended extremely efficiently and uniformly.

[Brief description of drawings]

FIG. 1 shows one specific example of a stirring device of the present invention. a is a sectional view and b is a top view.

FIG. 2 shows another specific example of the stirring device of the present invention. a is a sectional view and b is a top view.

FIG. 3 is an enlarged cross-sectional view when a rubber ring is used as the vibration stress dispersion means in the stirring device of the present invention.

FIG. 4 is an enlarged cross-sectional view showing another modification in which a rubber ring is used as the vibration stress dispersion means in the stirring device of the present invention.

FIG. 5 is an enlarged cross-sectional view when a metal wire bundle is used as the vibration stress dispersion means in the stirring device of the present invention.

FIG. 6 shows a cross-sectional view of an end portion of a metal wire bundle.

FIG. 7 is a plan view showing an example of the shape of a vibrating blade plate.

FIG. 8 is a plan view showing an example of the shape of a vibrating blade plate.

FIG. 9 is a plan view showing an example of the shape of a vibrating blade plate.

FIG. 10 is a plan view showing an example of the shape of a vibrating blade plate.

11A and 11B show a vibration stirring member composed of a vibrating blade plate and a fixing member for the vibrating blade plate, A is a sectional view, B is a plan view, and C is a combination of A and B. It is sectional drawing at the time of shape | molding.

FIG. 12 shows a modified example of the vibrating vane plate fixing member, wherein a is a sectional view showing one example thereof, and b is a sectional view showing another example thereof.

FIG. 13 is a cross-sectional view of a case where a plurality of vibrating blade plates are combined to form a vibrating blade plate / fixing member, and (a) shows three vibrating blade plates shortened toward the bottom. ) Is the case where the central part is the longest and the upper and lower blades next to it are rather short, and the upper and lower blades are even shorter.

FIG. 14 is a cross-sectional view schematically showing a case where, of the two vibrating rods, one vibrating rod has all the vibrating blade plates facing upward, and the other vibrating rod has all the vibrating blade plates facing downward. is there.

FIG. 15 is a cross-sectional view schematically showing an example in the case where a large number of vibrating blade plates are connected and fixed in parallel with two vibrating rods and one set of connecting type vibrating blade plates is used.

FIG. 16 is a cross-sectional view schematically showing another example of the case where a large number of vibrating blade plates are connected and fixed in parallel with two vibrating rods to use one set of connected vibrating blade plates.

FIG. 17 is a cross-sectional view of the case where the vibrating blade plates are attached to only one side of the vibrating rod, where A is the vibrating blade plates all tilted upward in the same direction, and B is the lower two sheets. FIG. 3 is a cross-sectional view showing a model of the case where the is inclined downward.

FIG. 18 shows an example of a stopper ring used in the present invention. a is a top view and b and c are side views.

FIG. 19 is a graph showing the relationship between the length of the vibrating blade plate and the degree of bending as a model.

FIG. 20 is a top view of the vibration stirrer of Example 1.

FIG. 21 is a cross-sectional view taken along line XX of the vibration stirrer of Example 1.

22 is a cross-sectional view taken along line YY of the vibration stirrer of Example 1. FIG.

FIG. 23 is a diagram showing dimensions of a vibration stirring unit of the vibration stirring device according to the first embodiment.

FIG. 24 is an enlarged sectional view of the lateral shake prevention mechanism of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Vibration motor 2 Basic vibration member 3 Vibration transmission member 4 Connection part 5 Spring 6 Frame 7 Stirring tank 8 Vibration rod 8'Auxiliary vibration rod 9 Vibration blade plate 10 Vibration blade plate fixing member 11 Elastic body 12 Nut 12 'Nut 13 Nut 13 ′ Nut 14 Nut 15 Nut 16 Washer ring 16 ′ Washer ring 17 Vibration rod screw groove 17 ′ Auxiliary vibration rod screw groove 18 Rubber ring 19 Nut 20 Connection ring 21 Connection ring 22 Nut 23 Metal wire bundle 24 Metal wire 25 Metal wire bundle Coating portion 26 screw groove provided in the coating portion of the metal wire bundle 27 notch portion 28 connecting portion 29 nut 30 spacer 31 spherical cap 32 play 41 stopper ring 42 stopper ring main body 43 screw 45 elastic body 46 stirring tank or provided in it Stand or reinforcement Material 47 fundamental vibration member or support rod extending vertically above the support bar 48 the 46 vertically extending downward from the frame or an auxiliary member provided to it

Claims (10)

[Claims] 1. A fluid stirring device including a vibration generating device including a vibration motor, and a vibration stirring device which is linked to the vibration generating device and is fixed to a vibrating rod that vibrates in a stirring tank in a one-stage or multi-stage manner so as not to rotate. In the fluid, the vibration motor is capable of generating arbitrary vibrations of 10 to 500 Hz by an inverter, and a vibration stress dispersion means is provided at a connecting portion between the vibration generator and the vibration rod. Stirrer. 2. The rubber ring is inserted around the vibrating rod at the bottom of the vibration generating device at the connecting portion between the vibration generating device and the vibrating rod, in the vibrating stress dispersing means. Fluid agitator. 3. The fluid stirring device according to claim 1, wherein the vibration stress dispersion means divides the vibration rod at a connection portion between the vibration generator and the vibration rod, and inserts a metal wire bundle therebetween. . 4. The fluid according to claim 1, 2 or 3, wherein the vibrating blade portion is inclined 5 to 30 degrees in the (+) or (-) direction when the right angle direction of the vibrating rod is 0 degree. Stirrer. 5. The vibrating blade portion is composed of a vibrating blade plate that is inclined and / or curved and a fixing member for the vibrating blade that is inclined and / or curved similarly. A fluid stirring device as described. 6. The fluid stirring device according to claim 1, wherein a vibrating motor is mounted below the basic vibrating member when the vibrating rod is vibrated by the vibration generating device. 7. The vibration generator and the stirring tank are three or more support rods vertically extending downward from the vibration generator, and correspondingly, support bars vertically extending upward from the stirring tank side and upper and lower supports. 7. A fluid agitator according to claim 1, 2, 3, 4, 5, or 6 engaged by a spring surrounding the rod. 8. The fluid stirring device according to claim 7, wherein the upper and lower support rods are held in a non-contact state by the spring. 9. The vibrating blade portion is of a vibrating stress dispersion type, and the vibrating blade portion is of a vibrating stress dispersion type.
A fluid stirring device as described. 10. A vibrating blade portion of the vibration stress dispersion type, wherein: (a) the vibrating blade plate and the fixing member have the same inclination or curvature (b) the vibrating blade plate and the fixing member are separately provided. Type that has been integrally molded without the use of a vibrating rod, and has a thickness that continuously increases as it goes from the vibrating rod to the tip. 3. A member selected from the group consisting of a type fixed to a vibrating rod with a nut.
3. A fluid stirring device according to 3, 4, 5, 6, 7, 8 or 9.