WO2015137411A1

WO2015137411A1 - Stirring device

Info

Publication number: WO2015137411A1
Application number: PCT/JP2015/057183
Authority: WO
Inventors: 村田　和久
Original assignee: 株式会社アクアテックス; 株式会社エディプラス
Priority date: 2014-03-12
Filing date: 2015-03-11
Publication date: 2015-09-17
Also published as: JP2015171695A; JP5597315B1

Abstract

　This stirring device (1) is provided with a stirring rotor (10) and a flow resistor (20) which are arranged adjacently to one another. The stirring rotor (10) is provided with a main unit (11) that rotates about a rotation axis (C), intake ports (12) located on the surface of the main unit (11), discharge ports (14) located on the surface of the main unit (11) at positions farther towards the outside from the rotation axis (C) in the centrifugal direction than are the intake ports (12), and flow passages (16) connecting the intake ports (12) and the discharge ports (14). The flow resistor (20) is made to a different shape or different size than the stirring rotor (10), or is arranged at a different orientation than the stirring rotor (10). As a result, there is provided a stirring device with which it is possible to carry out stirring efficiently, regardless of the condition of the stirred material.

Description

Stirrer

The present invention relates to a stirring device for stirring, mixing, dispersing, and the like of liquid and other various fluids.

Conventionally, when, for example, two or more kinds of fluids are mixed or various powders added to the fluid are uniformly dispersed, a stirring device that rotates an impeller in the fluid is used. This impeller is generally provided with a propeller blade and a turbine blade, and agitation is performed by flowing a fluid by rotating. In addition, a propeller blade or a turbine blade is not used, and an agitator or the like having a plurality of holes on the side surface is also proposed (see, for example, Patent Documents). 1).

JP-A-5-154368

However, many conventional stirring devices can generate only uniform flow in the axial direction or the centrifugal direction, and generally have a problem of low stirring efficiency. For example, when powder with a low specific gravity is introduced into a liquid and uniformly dispersed, the powder tends to float on the liquid surface as an aggregate (so-called lumps). It was difficult to disperse the powder uniformly by submerging the aggregate in the liquid and crushing it appropriately.

In particular, if you try to submerge powder etc. in the liquid by increasing the rotation speed of the impeller and strengthening the flow, it will result in even surrounding air etc. being caught in the liquid, so it should be avoided originally Another problem such as bubble mixing and foaming was newly generated. Furthermore, in the conventional stirring apparatus, not only suspended matter on the liquid surface but also sediment in the bottom of a container or the like is appropriately rolled up (or sucked up) and dispersed in liquid or gas. Depending on the nature of the case, it may be difficult.

In view of such circumstances, the present invention intends to provide a stirring device capable of performing efficient stirring regardless of the state of an object to be stirred.

The present invention includes a stirring rotator and a flow resistor that are disposed adjacent to each other, and the stirring rotator includes a main body that rotates about a rotation axis, and a suction port that is provided on a surface of the main body. A discharge port provided at a position on the outer surface of the main body in a centrifugal direction from the rotation shaft with respect to the suction port; and a flow passage connecting the suction port and the discharge port. The stirring device is configured to have a shape or a size different from that of the rotating body for rotation, or is arranged in a posture different from that of the rotating body for stirring.

The present invention is also characterized in that, in the stirring device of the above means, the rotating body for stirring and the flow resistor are arranged side by side in the rotational axis direction.

The present invention is also characterized in that, in the stirring device of the above means, the suction port is provided toward the flow resistor side.

The present invention is also characterized in that, in the stirring device of the above means, the flow resistor rotates about the resistor rotation axis.

The present invention also provides the stirrer according to the above means, wherein the flow resistor includes a resistor body that rotates about the resistor rotating shaft, a resistor inlet provided on a surface of the resistor body, and the resistor. A resistor discharge port provided at a position on the outer side in the centrifugal direction from the resistor rotation axis with respect to the resistor suction port on the surface of the body main body; a resistor flow passage connecting the resistor suction port and the resistor discharge port; It is characterized by providing.

According to the present invention, in the stirring device of the above means, the flow resistor is configured such that the flow velocity or flow rate of the flow passing through the resistor discharge port is lower than the flow velocity or flow rate of the flow passing through the discharge port. It is characterized by being configured.

According to the present invention, in the stirring device of the above means, the flow resistor is configured such that the flow velocity or flow rate of the flow passing through the resistor suction port is lower than the flow velocity or flow rate of the flow passing through the suction port. It is characterized by being configured.

The present invention is also characterized in that, in the stirring device of the above means, the resistor suction port is provided toward the stirring rotor.

The present invention is also characterized in that, in the stirring device of the above means, the flow resistor is configured such that a maximum dimension in a direction orthogonal to the resistor rotation axis is smaller than that of the stirring rotor.

According to the present invention, in the stirring device of the above means, the flow resistor is configured in a shape having an inclined surface that gradually moves away from the resistor rotating shaft as it approaches the stirring rotor along the resistor rotating shaft direction. It is characterized by being.

The stirrer according to the present invention can provide an excellent effect that it is possible to perform efficient stirring regardless of the state of the object to be stirred.

It is the front view (side view) which showed an example of the stirring apparatus which concerns on embodiment of this invention. (A) It is a top view of the rotary body for stirring. (B) It is a front view (side view) of the rotating body for stirring. (A) It is a top view of a flow resistor. (B) It is a front view (side view) of a flow resistor. It is the figure which showed an example of the effect | action of (a) and (b) stirring apparatus. It is the figure which showed the other example of the effect | action of (a) and (b) stirring apparatus. (A) to (c) are diagrams showing examples of other shapes of the flow resistor. (A) to (c) are diagrams showing examples of other arrangement configurations of the rotating body for stirring and the flow resistor. (A) to (c) are diagrams showing an example in which the flow resistor is not provided with a suction port, a discharge port and a flow passage. (A) to (c) is a view showing an example in which a plurality of flow resistors are provided in the stirring device. (A) to (c) are diagrams showing an example in which the stirring force of the flow resistor is not made lower than that of the stirring rotor.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, the structure of the stirring device 1 according to this embodiment will be described. FIG. 1 is a front view (side view) showing an example of a stirring device 1. As shown in the figure, the stirrer 1 includes a stirring rotator 10 that generates stirring force by rotating in an object to be stirred, and a flow resistance toward the stirring rotator 10 in the object to be stirred. The flow resistance body 20 is provided. The stirring rotating body 10 and the flow resistor 20 are coaxially connected to a driving shaft 30 that transmits a driving force of a driving device (not shown) such as a motor, with a predetermined distance therebetween.

That is, the rotating body for stirring 10 and the flow resistor 20 of the present embodiment are configured to rotate around the central axis C by one drive device. The driving device may be arranged on either the stirring rotor 10 side or the flow resistor 20 side. In other words, in the stirring device 1, either the stirring rotator 10 or the flow resistor 20 may be disposed on the drive device side, and can be used properly according to the application.

FIG. 2A is a plan view of the rotating body 10 for stirring, and FIG. 2B is a front view (side view) of the rotating body 10 for stirring. The main body 11 of the rotating body for stirring 10 is configured in a substantially cylindrical shape (disc shape), and the surface of the main body 11 is configured by a substantially circular upper surface 11a and a bottom surface 11b, and a side surface 11c which is an outer peripheral surface. Yes. The material which comprises the main body 11 is not specifically limited, For example, a suitable material according to use conditions, such as a metal, ceramics, resin, rubber | gum, wood, etc., is employable.

A plurality of suction ports 12 and a plurality of discharge ports 14 are provided on the surface of the main body 11, and a flow passage 16 formed so as to connect the suction ports 12 and the discharge ports 14 is provided inside the main body 11. Yes. A connecting portion 18 to which the drive shaft 30 is connected is provided at the center of the main body 11. The connecting portion 18 is a through-hole penetrating between the upper surface 11a and the bottom surface 11b, and is configured so that the main body 11 can be fixed to an arbitrary position of the drive shaft 30 by an appropriate fixing mechanism (not shown). . The fixing mechanism may use any known method such as a set screw, engagement, clamp, or the like.

The suction port 12 is provided on the surface on the flow resistor 20 side, that is, the upper surface 11a. In the present embodiment, the four suction ports 12 are arranged at equal intervals on a circumference centered on the central axis C. In the present embodiment, the suction port 12 is formed in substantially the same direction as the central axis C. The discharge port 14 is provided slightly on the bottom surface 11b side of the side surface 11c. In the present embodiment, the four discharge ports 14 are positioned at positions outside the main body 11 in the radial direction (centrifugal direction) with respect to the suction ports 12 (positions separated from the central axis C in a direction perpendicular to the central axis C). Each is arranged. In the present embodiment, the discharge ports 14 are formed in a direction substantially orthogonal to the central axis C.

The flow passage 16 is formed as a tunnel-like passage connecting one suction port 12 and one discharge port 14. Accordingly, four flow passages 16 are formed inside the main body 11. In the present embodiment, each of the flow passages 16 is formed so as to travel straight along the direction of the central axis C from the suction port 12 and then bend at a right angle, and travel straight in the centrifugal direction of the main body 11 to reach the discharge port 14. ing.

The stirring rotating body 10 stirs the object to be stirred by rotating around the central axis C in the object to be stirred that is a fluid. When the stirring rotator 10 is immersed in the fluid and rotated, the fluid that has entered the flow passage 16 also rotates together with the stirring rotator 10. Then, a centrifugal force acts on the fluid in the flow passage 16, and the fluid in the flow passage 16 flows toward the outside in the radial direction of the stirring rotor 10 as shown in FIGS. 2 (a) and 2 (b). To do.

Since the discharge port 14 is provided on the radially outer side of the agitating rotator 10 with respect to the suction port 12, a centrifugal force stronger than that of the suction port 12 acts on the discharge port 14. Accordingly, the fluid flows from the suction port 12 toward the discharge port 14 as long as the stirring rotator 10 rotates. That is, the fluid in the flow passage 16 is ejected from the discharge port 14, and the external fluid is sucked into the flow passage 16 from the suction port 12. As a result, in the fluid around the stirring rotator 10, a flow radiating from the side surface 11 c of the stirring rotator 10 having the discharge port 14 and a flow toward the suction port 12 are generated. The flow toward the suction port 12 becomes a swirl flow by the rotation of the suction port 12.

Further, in the vicinity of the surface of the stirring rotator 10 (that is, the upper surface 11a, the bottom surface 11b, and the side surface 11c, which are the surfaces of the main body 11), the fluid rotates together with the stirring rotator 10 due to the influence of viscosity. The fluid around the stirring rotator 10 also flows so as to spread radially from the central axis C by the centrifugal force. In this manner, the stirring rotator 10 has a complicated flow (i.e., a flow of fluid in the vicinity of the surface due to the rotation of the fluid in the vicinity of the surface due to the viscosity in addition to the inflow of the fluid to the suction port 12 and the outflow of the fluid from the discharge port 14). Turbulent flow) is generated, and an unprecedented stirring ability can be obtained.

In addition, in this embodiment, although the main body 11 is comprised in the substantially cylindrical shape, the shape of the main body 11 is not limited to this, For example, other arbitrary shapes, such as spherical shape, a hemispherical shape, and a polygonal column shape, are used. Can be adopted. Further, the shape (cross-sectional shape) of the suction port 12 and the discharge port 14 is not limited to a circular shape, and may be other shapes such as an elliptical shape and a polygonal shape. In addition, the cross-sectional shape of the flow passage 16 is not particularly limited, and can be configured in an appropriate shape according to the shape and position of the suction port 12 and the discharge port 14 or the processing method.

Further, in the present embodiment, the flow passage 16 is configured in an L shape that bends at a substantially right angle for ease of processing, but the flow passage 16 is configured as a smoothly curved curved passage. Alternatively, the suction port 12 and the discharge port 14 may be connected linearly. Further, in this embodiment, the strength of the main body 11 is increased by configuring the portion other than the flow passage 16 of the main body 11 to be solid, but the portion other than the flow passage 16 of the main body 11 is configured to be hollow. You may make it do.

3 (a) is a plan view of the flow resistor 20, and FIG. 3 (b) is a front view (side view) of the flow resistor 20. FIG. The main body 21 (resistor main body) of the flow resistor 20 is formed in a substantially truncated cone shape, and the surface of the main body 21 is formed from a substantially circular upper surface 21a and a bottom surface 21b, and a side surface 21c which is an inclined outer peripheral surface. It is configured. The material which comprises the main body 21 is not specifically limited like the rotating body 10 for stirring, The appropriate material according to use conditions can be employ | adopted.

The main body 21 of the flow resistor 20 is provided with a plurality of suction ports 22 (resistor suction ports) and a plurality of discharge ports 24 (resistor discharge ports) on the surface, similarly to the rotating body 10 for stirring. A flow passage 26 (resistor flow passage) that connects the suction port 22 and the discharge port 24 is provided. In other words, the flow resistor 20 is configured to eject the fluid from the discharge port 24 and suck the fluid to the suction port 22 by rotating in the fluid, similarly to the rotating body 10 for stirring. Further, a connecting portion 28 having a structure similar to that of the stirring rotator 10 is provided at the center of the main body 21, whereby the flow resistor 20 is connected to an arbitrary position of the drive shaft 30.

The suction ports 22 are provided on the surface on the agitating rotator 10 side, that is, the bottom surface 21b, and four suction ports 22 are arranged on the circumference centered on the central axis C at equal intervals. The discharge port 24 is provided on the side surface 21c, and is positioned on the outer side in the radial direction (centrifugal direction) of the main body 21 with respect to each suction port 22 (a position separated from the central axis C in a direction perpendicular to the central axis C). Four discharge ports 24 are respectively arranged.

The flow passage 26 is formed as a tunnel-like passage connecting one suction port 22 and one discharge port 24. In the present embodiment, each of the flow passages 26 is formed so as to travel straight along the direction of the central axis C from the suction port 22, bend at a right angle, and travel straight in the centrifugal direction of the main body 21 to reach the discharge port 24. ing.

The flow resistor 20 changes the flow by becoming a resistance to flow toward the agitating rotating body 10 in the object to be stirred which is a fluid. In other words, the flow resistor 20 improves the stirring force by appropriately disturbing the flow toward the stirring rotor 10. In the present embodiment, the stirring force of the flow resistor 20 is set to be lower than the stirring force of the stirring rotor 10. In other words, in the present embodiment, of the two rotating members, the higher stirring force is the rotating body 10 for stirring, and the lower stirring force is the flow resistor 20.

The stirring force of the stirring rotor 10 and the flow resistor 20 is mainly determined by the flow velocity or flow rate of the flow passing through the

suction ports

12 and 22 and the flow velocity or flow rate of the flow passing through the

discharge ports

14 and 24. Therefore, in this embodiment, the radial direction (centrifugal direction) dimension of the main body 21 of the flow resistor 20 is configured to be smaller than that of the main body 11 of the stirring rotor 10, and the distance A from the central axis C to the discharge port 24 is set. This shortens the action of the centrifugal force so that the flow velocity of the flow passing through the suction port 22 and the flow velocity of the flow passing through the discharge port 24 are lower than that of the rotating body 10 for stirring. Further, by configuring the inner diameters (cross-sectional areas) of the suction port 22, the discharge port 24 and the flow passage 26 of the flow resistor 20 to be smaller than the suction port 12, the discharge port 14 and the flow passage 16 of the stirring rotor 10, The flow rate of the flow passing through the suction port 22 and the flow rate of the flow passing through the discharge port 24 are made lower than that of the rotating body 10 for stirring.

Next, the operation of the stirring device 1 will be described. 4A and 4B are diagrams showing an example of the operation of the stirring device 1. FIG. FIG. 4A shows a case where only the rotating body for stirring 10 is immersed in the liquid to-be-stirred object 50 accommodated in the container 40 and is rotated by the driving device 60 disposed above. FIG. 4B shows a state in which the stirring rotating body 10 and the flow resistance body 20 are immersed in the liquid to-be-stirred object 50 accommodated in the container 40 and rotated by the driving device 60 disposed above. Shows the case.

As shown in FIG. 4A, a complicated circulation flow is generated in the stirred object 50 by rotating the stirring rotating body 10 in the stirred object 50. That is, the flow that radially spreads in the centrifugal direction from the agitating rotator 10 due to the ejection from the discharge port 14, etc., is divided into upper and lower parts after being spread to some extent, and one is compared from the upper side to the upper surface 11 a by the suction force of the suction port 12. Is a relatively strong swirl flow, and the other is a relatively weak swirl flow from below toward the bottom surface 11b.

Further, by generating such a circulating flow, a stirring force can be exerted on substantially the entire object to be stirred 50, so that the object to be stirred 50 can be efficiently stirred. Further, as in this example, by directing the suction port 12 upward, that is, toward the liquid level 52, for example, powder agglomerates floating on the liquid level 52 are submerged in the liquid by a relatively strong swirling flow, It is also possible to uniformly disperse the object to be stirred 50 by the circulating flow.

As shown in FIG. 4B, in addition to the stirring rotator 10, the flow resistor 20 is disposed on the suction port 12 side (upper) of the stirring rotator 10 so as to be relatively directed toward the upper surface 11a. It is possible to change the strong swirl flow so that it is once spread. That is, the flow resistance body 20 blocks the flow in the vicinity of the central axis C, and a relatively strong swirling flow toward the upper surface 11a of the stirring rotating body 10 due to the centrifugal force caused by the ejection from the discharge port 24 and viscosity. Can be disturbed by spreading outward. Furthermore, a relatively strong swirling flow once spread outward can be drawn to the central axis C side by the negative pressure generated behind (lower side) the flow resistor 20 and suction by the suction port 22.

As a result, it is possible to generate a very complicated flow in a relatively strong swirling flow from the upper liquid level 52 toward the upper surface 11a of the stirring rotator 10. As a result, even when a large amount of powder agglomerates are floating on the liquid surface 52, the agglomerates are submerged in the liquid in a very short time due to this complicated flow. Can be crushed. In addition, the extremely complicated flow caused by the flow resistor 20 also affects the surrounding circulation flow, so that a more complicated flow is generated over almost the entire area of the object to be stirred 50 and more uniform stirring is performed. It is possible to perform dispersion.

That is, according to the stirring device 1 of the present embodiment, it is possible to stir extremely efficiently even with the object to be stirred 50 that was difficult to stir efficiently with the conventional stirring device. ing. Furthermore, in the stirring device 1 of the present embodiment, the position of the flow resistor 20 can be appropriately set so that the liquid level 52 is not disturbed more than necessary. Since it is not necessary to increase the flow rate by increasing the number of revolutions of the rotating body 10, bubbles are mixed into the object to be stirred 50 due to disturbance of the liquid surface 52, foaming, and leakage of the object 50 to be stirred due to the rise of the liquid surface 52. It is possible to increase the stirring efficiency without causing such problems.

Further, in this embodiment, the stirring force of the flow resistor 20 is reduced by making the maximum dimension in the radial direction of the flow resistor 20, that is, the maximum dimension in the direction orthogonal to the central axis C smaller than that of the stirring rotor 10. Is appropriately reduced, and the flow toward the stirring rotator 10 is not blocked more than necessary, thereby making it possible to effectively generate a complex flow.

Furthermore, in this embodiment, the shape of the main body 21 of the flow resistor 20 is a truncated cone, more specifically, an inclined surface that gradually moves away from the central axis C as it approaches the agitating rotator 10 along the direction of the central axis C. By configuring in a shape having (side surface 21c), it is possible to smoothly and effectively guide the flow toward the flow resistor 20 from above. Further, by providing the discharge port 24 on the inclined surface (side surface 21c) thus configured, the jet flow from the discharge port 24 is disturbed by the difference in peripheral speed, and this jet flow is directly collided with the flow from above. It is possible to generate more complex flows.

FIGS. 5A and 5B are diagrams showing another example of the operation of the stirring device 1. Similar to FIGS. 4A and 4B, FIG. 5A shows a case where only the stirring rotator 10 is immersed in the liquid to-be-stirred object 50 and is rotated. (B) has shown the case where the rotating body 10 for stirring and the flow resistance body 20 are immersed in the liquid to-be-stirred object 50, and it rotates. Further, in this example, contrary to the example of FIGS. 4A and 4B, the rotating body for stirring 10 is disposed in a posture in which the upper surface 11a and the suction port 12 are directed downward, that is, toward the bottom 42 of the container 40. Like to do.

As shown in FIG. 5 (a), the agitation rotating body 10 is appropriately brought close to the bottom 42 in a state where the suction port 12 faces downward, so that the sediment settled on the bottom 42 is seen from below to the top. It is possible to wind up properly by the relatively strong swirl flow toward 11a and suck up at the suction port 12. Then, the sediment sucked at the suction port 12 is ejected from the discharge port 14, whereby the sediment can be appropriately dispersed in the stirred object 50 by the circulating flow.

As shown in FIG. 5B, in addition to the stirring rotator 10, the flow resistor 20 is arranged on the suction port 12 side (downward) of the stirring rotator 10, thereby making the structure shown in FIG. Similar to the example shown, it is possible to generate a very complicated flow in a relatively strong swirling flow from below to the upper surface 11a. Therefore, by making the flow resistor 20 appropriately close to the bottom portion 42, the sediment can be wound up more efficiently and more efficiently dispersed by this complicated flow.

Thus, according to the stirring device 1 of the present embodiment, by combining the flow resistor 20 having a low stirring force with the rotating body 10 for stirring, the flow generated by both can be made to act synergistically. It is possible to improve the stirring efficiency more than before, and is particularly suitable for the case where suspended matters, sediments, and the like are uniformly dispersed in the object to be stirred 50. Furthermore, in this embodiment, the shape of the main body 21 of the flow resistor 20 is a substantially truncated cone shape, thereby further improving the stirring efficiency.

Next, other forms of the stirring device 1 will be described. First, FIGS. 6A to 6C are diagrams showing examples of other shapes of the flow resistor 20. The shape (outer shape) of the main body 21 of the flow resistor 20 is not limited to the above-mentioned substantially truncated cone shape. For example, as shown in FIG. Although it may be configured in a columnar shape and is not illustrated, any other shape such as a spherical shape, a hemispherical shape, or a polygonal column shape can be employed.

Further, as shown in FIG. 6B, the flow resistor 20 has the same outer shape of the main body 21 as the shape of the main body 11 of the stirring rotating body 10, but the suction port 22, the discharge port 24, and the flow. The stirring force may be reduced by reducing the inner diameter (cross-sectional area) of the passage 26 and reducing the flow rate of the flow passing through the passage 26. In addition, as shown in FIG. 6C, the flow resistor 20 has only the outer diameter of the cylindrical main body 21 smaller than the outer diameter of the rotating body 10 for stirring, and the flow velocity of the flow passing through them is increased. The stirring force may be lowered by lowering. Further, although not shown, the flow resistor 20 may have a lower stirring force by reducing the number of suction ports 22 or discharge ports 24.

Although not shown, the flow resistor 20 has a lower stirring force by making the outer shape of the main body 21 or the presence or absence of uneven shapes provided on the surface of the main body 21 different from the rotating body 10 for stirring. It may be. That is, the flow resistor is not based on the flow velocity or flow rate of the flow passing through the suction port 22 or the discharge port 24 but due to a difference in the revolving action in the vicinity of the surfaces of the

main bodies

11 and 21 and the stir action by the outer shape of the

main bodies

11 and 21 You may make it make 20 stirring power low.

7 (a) to 7 (c) are diagrams showing examples of other arrangement configurations of the rotating body for stirring 10 and the flow resistance body 20. FIG. As shown in FIG. 7A, the flow resistor 20 may be arranged with the suction port 22 facing the opposite side of the stirring rotator 10. For example, when it is desired to more actively mix bubbles into the liquid, it is effective to arrange the flow resistor 20 in such a posture. Further, as shown in FIG. 7B, the flow resistor 20 may be disposed on the bottom surface 11 b side (opposite side of the suction port 12) of the stirring rotating body 10. In this case, a complicated flow can be generated in a relatively weak swirling flow toward the bottom surface 11b.

Further, as shown in FIG. 7C, the stirring rotator 10 may be provided with suction ports 12 on both the upper surface 11a and the bottom surface 11b, and although not shown, the flow resistance Also in the body 20, the suction ports 22 may be provided on both the upper surface 21a and the bottom surface 21b.

As described above, the postures of the agitating rotating body 10 and the flow resistor 20 and the relative positions of the two are not particularly limited, and can be appropriately set according to the use of the agitating device 1 or the like. . Further, the configurations and arrangements of the

suction ports

12 and 22, the

discharge ports

14 and 24, and the

flow passages

16 and 26 in the rotating body 10 and the flow resistor 20 are not particularly limited, and the use of the stirring device 1 It can set suitably according to etc.

For example, although not shown, the number of the

suction ports

12 and 22 and the

discharge ports

14 and 24 may be a number other than four, or a plurality of the

discharge ports

14 and 24 for one

suction port

12 and 22. The

flow passages

16 and 26 may be configured to connect the two. In addition, the

suction ports

12 and 22 and the

discharge ports

14 and 24 may be oriented obliquely with respect to the central axis C.

8 (a) to 8 (c) are diagrams showing an example in which the flow resistor 20 is not provided with the suction port 22, the discharge port 24, and the flow passage 26. FIG. The flow resistor 20 only needs to change the flow toward the stirring rotator 10 in some form. Depending on the application of the stirrer 1 or the like, the flow resistor 20 may include the suction port 22, the discharge port 24, and the flow path. 26 may be omitted. That is, the flow resistor 20 may be configured to change the flow toward the stirring rotating body 10 only by the outer shape of the main body 21.

In this case, the flow resistor 20 may be connected to the drive shaft 30 for rotation as shown in FIG. 8A, or other flow resistor 20 as shown in FIG. 8B. It may be supported by the support member 70 and not connected to the drive shaft 30 and may not rotate. Further, as shown in FIG. 8C, the flow resistor 20 may be divided into a plurality of parts. In this case, it goes without saying that the flow resistor 20 can be configured in an arbitrary shape according to the use of the stirring device 1 or the like.

9 (a) to 9 (c) are diagrams showing an example in which a plurality of flow resistors 20 are provided in the stirring device 1. FIG. The number of the flow resistors 20 provided in the stirring device 1 is not particularly limited, and two or more flow resistors 20 may be provided in the stirring device 1 depending on the use of the stirring device 1 or the like.

In this case, as shown in FIG. 9A, the flow resistor 20 may be arranged on both sides in the direction of the central axis C with respect to the stirring rotating body 10, or as shown in FIG. 9B. As described above, a plurality of flow resistors 20 may be arranged on either side of the central axis C direction. Further, the plurality of flow resistors 20 may be the same as shown in FIGS. 9A and 9B, or may be different from each other as shown in FIG. 9C. The flow resistor 20 may be provided. Needless to say, the posture of each flow resistor 20 is not particularly limited.

Although not shown, the stirring device 1 may be provided with a plurality of rotating bodies 10 for stirring. In this case, one or a plurality of flow resistors 20 may be provided for each stirring rotor 10, or a stirring rotor 10 that does not have the corresponding flow resistor 20 may be included. Good.

FIGS. 10A to 10C are diagrams showing an example in which the stirring force of the flow resistor 20 is not made lower than that of the stirring rotor 10. As described above, making the stirring force of the flow resistor 20 lower than that of the stirring rotor 10 is particularly effective in the case of dispersing suspended matter, sediment, etc. In some cases, it is preferable that the stirring force of the flow resistor 20 is not lower than that of the rotating body 10 for stirring.

According to the inventor's research, in this case as well, as shown in FIG. 10A, for example, the flow resistor 20 is formed in a shape different from that of the agitating rotor 10, or for example, FIG. ), The flow resistor 20 is configured to have a size different from that of the stirring rotator 10, thereby synergistically generating the flow generated by the stirring rotator 10 and the flow generated by the flow resistor 20. This makes it possible to improve the stirring efficiency.

Further, as shown in FIG. 10 (c), one of the two stirring rotors 10a and 10b is made to have a different posture, and the stirring rotor 10b is made a flow resistor. Even when it is set to 20, the flow generated by the stirring rotating body 10 and the flow generated by the flow resistor 20 can act synergistically to improve the stirring efficiency.

In other words, the flow resistor 20 is not limited to one having a lower stirring force than the stirring rotator 10, and is configured to have a shape or a size different from that of the stirring rotator 10, or May be arranged in different postures. The flow resistor 20 having a reduced stirring force is included in either a shape different from the stirring rotor 10 or a size different from the stirring rotor 10. Needless to say. In addition, what is configured in a shape different from that of the stirring rotator 10 is different from the stirring rotator 10 only in the suction port 22, the discharge port 24, or the flow passage 26, and the stirring rotator. Needless to say, the suction port 12, the discharge port 14, and the flow passage 16 are only deleted from 10.

In addition, although illustration is omitted, the rotating body for stirring 10 and the flow resistor 20 may be connected to different drive shafts 30 and rotate. In this case, the number of rotations of the agitating rotator 10 and the flow resistor 20 may be varied, or the rotation directions may be varied. In this case, the rotating shafts (center axis C) of the stirring rotator 10 and the flow resistor 20 may be shifted.

As described above, the stirring device 1 according to the present embodiment includes the rotating body for stirring 10 and the flow resistor 20 that are disposed adjacent to each other, and the rotating body for stirring 10 has a rotating shaft (central axis C). , A suction port 12 provided on the surface of the main body 11, and a discharge port 14 provided on the surface of the main body 11 at a position on the outer side in the centrifugal direction from the rotation axis (center axis C) than the suction port 12. And the flow passage 16 connecting the suction port 12 and the discharge port 14, and the flow resistor 20 is configured in a shape or a size different from that of the stirring rotator 10, or the stirring rotator 10. It is arranged in a different posture.

With such a configuration, efficient stirring can be performed regardless of the state of the object to be stirred. That is, since the flow generated by the rotating body for stirring 10 can be appropriately disturbed by the flow resistor 20, a more complicated flow can be generated in the object to be stirred, and the stirring efficiency can be improved.

Further, the stirring rotating body 10 and the flow resistor 20 are arranged side by side in the direction of the rotation axis (center axis C). By doing in this way, since the flow which goes to the rotating body 10 for stirring can be effectively disturbed by the flow resistance body 20, a more complicated flow can be generated in a to-be-stirred object.

Further, the suction port 12 may be provided toward the flow resistor 20 side. By doing so, it becomes possible to effectively disturb the relatively strong swirling flow toward the suction port 12 by the flow resistor 20, so that a more complicated flow can be generated in the stirring object.

Further, the flow resistor 20 may rotate about the resistor rotation axis (center axis C). By doing in this way, since the flow which the rotating body 10 for stirring can generate | occur | produce can be effectively disturbed by the flow resistance body 20, a more complicated flow can be generated in a to-be-stirred object.

The flow resistor 20 includes a resistor main body 21 that rotates about a resistor rotation axis (center axis C), a resistor inlet 22 provided on the surface of the resistor main body 21, and a surface of the resistor main body 21. 2, a resistor discharge port 24 provided at a position on the outer side in the centrifugal direction from the resistor rotation axis (center axis C) with respect to the resistor suction port 22, and a resistor flow path connecting the resistor suction port 22 and the resistor discharge port 24. 26 may be provided. By doing so, the flow generated by the stirring rotating body 10 and the flow generated by the flow resistor 20 can be made to act synergistically, so that a more complicated flow is generated in the object to be stirred. Can do.

Further, the flow resistor 20 may be configured such that the flow velocity or flow rate of the flow passing through the resistor discharge port 24 is lower than the flow velocity or flow rate of the flow passing through the discharge port 14. By doing in this way, it becomes possible to make the flow which the flow resistance body 20 acts effectively with respect to the flow which the rotating body 10 for stirring stirs, for example, suspended matter, sediment, etc. It is particularly suitable for the case of dispersing in the above.

Further, the flow resistor 20 may be configured such that the flow velocity or flow rate of the flow passing through the resistor suction port 22 is lower than the flow velocity or flow rate of the flow passing through the suction port 12. By doing in this way, it becomes possible to make the flow which the flow resistance body 20 acts effectively with respect to the flow which the rotating body 10 for stirring stirs, for example, suspended matter, sediment, etc. It is particularly suitable for the case of dispersing in the above.

Further, the resistor suction port 22 may be provided toward the stirring rotor 10 side. By doing so, the flow generated by the flow resistor 20 can be effectively acted on the flow generated by the rotating body 10 for stirring, so that a more complicated flow is generated in the object to be stirred. Can be made. Moreover, even when it is necessary to arrange the flow resistor 20 on the liquid surface side, it is possible to achieve both the prevention of bubble mixing and foaming and the improvement of the stirring efficiency.

Further, the flow resistor 20 may be configured such that the maximum dimension in the direction orthogonal to the resistor rotation axis (center axis C) is smaller than that of the agitating rotor 10. By doing so, the flow generated by the flow resistor 20 can be effectively acted on the flow generated by the rotating body 10 for stirring, so that a more complicated flow is generated in the object to be stirred. Can be made.

Further, the flow resistor 20 is configured in a shape having an inclined surface that gradually goes away from the resistor rotation axis (center axis C) as it approaches the stirring rotor 10 along the resistor rotation axis direction (center axis C direction). It may be a thing. By doing so, it is possible to appropriately induce the flow toward the flow resistor 20 and to effectively cause the flow generated by the flow resistor 20 to act on the flow generated by the stirring rotating body 10. Therefore, more complicated flow can be generated in the object to be stirred.

As mentioned above, although embodiment of this invention was described, the stirring apparatus of this invention is not limited to above-described embodiment, In the range which does not deviate from the summary of this invention, it can add various changes. Of course. In addition, the functions and effects shown in the above embodiment are merely a list of the most preferable functions and effects resulting from the present invention, and the functions and effects of the present invention are not limited to these.

The stirring device of the present invention can be used in the fields of stirring, dispersion and mixing of various fluids.

DESCRIPTION OF SYMBOLS 1 Stirring apparatus 10 Rotating body for stirring 11 Main body of rotating body for stirring 12 Inlet port of rotating body for stirring 14 Discharge port of rotating body for stirring 16 Flow path of rotating body for stirring 20 Flow resistor 21 Main body of flow resistor 22 Flow resistor suction port 24 Flow resistor discharge port 26 Flow resistor flow path C Center axis

Claims

Comprising a rotating body for stirring and a flow resistor disposed adjacent to each other;
The stirring rotating body includes:
A main body that rotates about a rotation axis;
An inlet provided on the surface of the body;
A discharge port provided at a position on the outer surface of the main body in the centrifugal direction from the rotation shaft with respect to the suction port;
A flow path connecting the suction port and the discharge port,
The flow resistor is configured in a shape or a size different from that of the stirring rotor, or is arranged in a posture different from that of the stirring rotor,
Stirring device.
The stirring rotating body and the flow resistor are arranged side by side in the rotation axis direction,
The stirrer according to claim 1.
The suction port is provided toward the flow resistor side,
The stirrer according to claim 1 or 2.
The flow resistor rotates about a resistor rotation axis,
The stirrer according to any one of claims 1 to 3.
The flow resistor is
A resistor body that rotates about the resistor rotation axis;
A resistor inlet provided on the surface of the resistor body;
A resistor discharge port provided at a position on the outer surface of the resistor main body in the centrifugal direction from the resistor rotation shaft with respect to the resistor suction port;
A resistor flow path connecting the resistor suction port and the resistor discharge port,
The stirrer according to claim 4.
The flow resistor is configured such that the flow rate or flow rate of the flow passing through the resistor discharge port is lower than the flow rate or flow rate of the flow passing through the discharge port,
The stirring device according to claim 5.
The flow resistor is configured such that the flow velocity or flow rate of the flow passing through the resistor suction port is lower than the flow velocity or flow rate of the flow passing through the suction port.
The stirrer according to claim 5 or 6.
The resistor suction port is provided toward the stirring rotor,
The stirrer according to any one of claims 5 to 7.
The flow resistor is configured such that a maximum dimension in a direction perpendicular to the resistor rotation axis is smaller than that of the stirring rotor.
The stirrer according to any one of claims 4 to 8.
The flow resistor is configured in a shape having an inclined surface that gradually moves away from the resistor rotation axis as it approaches the stirring rotor along the resistor rotation axis direction.
The stirrer according to any one of claims 4 to 9.