JP2012240010A - Stirring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stirring device high in throughput while having strong dispersing/mixing force, and allowing efficient stirring.SOLUTION: The stirring device 1 includes a rotor 10 rotating on a rotation axis C, a facing element 20 disposed from one side of a direction of the rotation axis facing the rotor 10, a suction port 12 formed in a surface of the rotor 10, a discharge port 14 formed in the surface of the rotor 10 at a position situated on the outer side of the suction port 12 in a centrifugal direction from the rotation axis, and a flow passage connecting together the suction port 12 and the discharge port 14. The rotor 10 has a first facing surface 18 facing the facing element 20, the facing element 20 has a second facing surface 22 facing the first facing surface 18 with a predetermined gap G left, and an opening 19 which is opened on the first facing face 18 is formed in the middle of the flow passage 16.

Description

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

  Conventionally, for example, when two or more kinds of fluids are mixed or various powders added to the fluid are uniformly dispersed, a stirrer 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, when it is desired to disperse powders and the like more uniformly in the fluid, or when it is desired to generate an emulsion by emulsifying two types of fluids that do not mix with each other, a shear gap is formed between the rotating rotor and the non-rotating stator. A stirrer or the like is also used in which a stronger dispersion / mixing force is obtained by introducing a fluid from the stator side into the shearing gap and applying a shearing force to the fluid (for example, patents) Reference 1 or 2).

JP 63-49239 A JP-T-2004-521727

  However, the conventional stirring device that forms the shear gap needs to pass through a very narrow and complicated shear gap to the fluid to be stirred, so that the flow rate and flow velocity are reduced, and the processing capacity is low. was there. For this reason, it takes a lot of time for stirring, and stagnation and clogging may occur depending on the viscosity of the fluid.

  In addition, when stirring is performed in a large container, it is difficult to generate a flow in a wide range and exert a stirring action on the entire container only with a stirring device that forms a shear gap. It was not possible to perform efficient stirring, for example, it was necessary to separately install a stirring device equipped with

  The present invention has been made in view of such circumstances, and intends to provide a stirring device that has a high dispersion capacity and a high processing capacity while being able to perform efficient stirring. It is.

  (1) The present invention relates to a rotating body that rotates about a rotating shaft, an opposing body that is arranged to face the rotating body from one side in the rotating shaft direction, and an inlet provided on a surface of the rotating body And a discharge port provided at a position on the outer side in the centrifugal direction from the rotation axis than the suction port on the surface of the rotary body, and a flow passage connecting the suction port and the discharge port, the rotary body includes: The counter body has a first counter surface facing the counter body, the counter body has a second counter surface facing the first counter surface with a predetermined gap, and is in the middle of the flow path. Is a stirrer characterized in that an opening is formed in the first facing surface.

  (2) In the present invention, the flow path has a centrifugal direction portion formed so as to be directed outward in the centrifugal direction of the rotating shaft, and the opening portion is the first facing surface of the centrifugal direction portion. It is a stirring apparatus as described in said (1) characterized by being provided in the side.

  (3) The present invention is also characterized in that an uneven shape is formed on at least one of the first facing surface and the second facing surface, as described in (1) or (2) above. It is a stirring device.

  (4) In the present invention, a recess is formed in one of the first facing surface and the second facing surface, and the other of the first facing surface and the second facing surface is The stirring device according to (3) above, wherein a convex portion that is at least partially accommodated in the concave portion is formed.

  (5) In the present invention, the first opposing surface is formed with a first convex portion having a wedge-shaped cross section with the apex in the rotation direction of the rotating body, and the second opposing surface has the A second convex portion having a wedge-shaped cross section whose apex is directed in the direction opposite to the rotational direction of the rotating body is formed, and the first convex portion is displaced in the centrifugal direction of the rotation shaft with respect to the second convex portion. The stirring device according to (3) or (4), wherein the stirring device is disposed at a different position.

  (6) In the present invention, a groove-shaped first recess is formed on the first facing surface, and a groove-shaped second recess is formed on the second facing surface. The stirring device according to (3), wherein the first concave portion and the second concave portion are formed in a direction crossing each other.

  (7) In the present invention, any one of the above (1) to (6) is characterized in that the edge of the opening is formed so as to gradually expand toward the second facing surface. The stirring device according to claim 1.

  (8) In the invention, any one of the above (1) to (7) is characterized in that a protruding portion that protrudes toward the inside of the opening is formed at an edge of the opening. It is a stirring apparatus as described in above.

  (9) In the stirring device according to any one of (1) to (8), the counter body may be fixedly disposed so as not to rotate about the rotation shaft. is there.

  (10) The present invention is also characterized in that the opposing body is a part of a container that accommodates an object to be stirred, and the second opposing surface is a part of an inner wall surface of the container. It is a stirring apparatus as described in said (9).

  (11) The present invention is also the stirring device according to any one of (1) to (8) above, wherein the facing body rotates around the rotation shaft.

  (12) The present invention also provides a counter body suction port provided on the surface of the counter body, and a counter body discharge provided on the surface of the counter body at a position on the outer side in the centrifugal direction from the rotation shaft with respect to the counter body suction port. The stirrer according to (11) above, further comprising an outlet, and a counter body flow passage connecting the counter body suction port and the counter body discharge port.

  (13) The stirrer according to (12), wherein the counter body opening portion that opens in the second counter surface is formed midway in the counter body flow passage. It is.

  (14) The stirring device according to any one of (1) to (13), wherein the first facing surface is configured to be detachable from the rotating body. It is.

  According to the present invention, while having a strong dispersion / mixing force, the processing ability is high, and an excellent effect that efficient stirring can be performed can be achieved.

(A) It is the front view which showed an example of the stirring apparatus which concerns on embodiment of this invention. (B) It is the sectional view on the AA line of the figure (a). (A) It is the top view which showed the rotary body. (B) It is the front view (the side view is also the same) which showed the rotary body. (C) It is the bottom view which showed the rotary body. (A) It is the top view which showed the opposing body. (B) It is the front view (side view is the same) which showed the counter object. (C) It is the front view which showed arrangement | positioning of the opposing body. (A) It is the top view which showed the action | operation of the rotary body and the opposing body. (B) It is the front view which showed the action | operation of the rotary body and the opposing body. (C) It is sectional drawing which expanded and showed the BB line cross section of the figure (a). It is the schematic which showed the usage example of (a) and (b) stirring apparatus. (A) It is sectional drawing which showed an example at the time of providing the opening part partially. (B) And (c) It is sectional drawing which showed the example at the time of comprising a 1st opposing surface and a 2nd opposing surface in substantially cone shape, respectively. (A) And (b) It is the figure which showed the example at the time of comprising so that the magnitude | size of the clearance gap between a 1st opposing surface and a 2nd opposing surface may change. (A)-(d) It is the figure which showed the example at the time of forming uneven | corrugated shape in the 1st opposing surface or the 2nd opposing surface. (A)-(c) It is the figure which showed the example of arrangement | positioning in the centrifugal direction of a recessed part and a convex part. (D) It is the figure which showed an example at the time of providing an outer peripheral wall in the outer peripheral part of a 1st opposing surface and a 2nd opposing surface. It is the figure which showed the example of (a)-(c) uneven | corrugated shape. It is the figure which showed the example of (a)-(c) uneven | corrugated shape. (A)-(d) It is the figure which showed an example at the time of providing the uneven | corrugated shape, when the shape of a convex part was comprised in the wedge shape (or triangular shape) which has a vertex. (A) It is the figure which showed an example at the time of providing the uneven | corrugated shape, and when the recessed part of the 1st opposing surface and the recessed part of the 2nd opposing surface were comprised in the shape of a mutually intersecting groove | channel. (B) And (c) An example at the time of comprising the 1st opposing surface with respect to a rotary body so that attachment or detachment is possible by making a part including the 1st opposing surface of a rotary body into a removable attachment member is shown. It is a figure. (A)-(c) It is the figure which showed the example at the time of forming so that the advancing direction reverse side edge part and advancing direction side edge part of an opening part may be gradually expanded toward the 2nd opposing surface side. (D) It is the figure which showed an example at the time of providing a protrusion part in the advancing direction reverse side edge part and advancing direction side edge part of an opening part. (A)-(d) It is the figure which showed the example of the other arrangement structure of a rotary body and an opposing body. (A) And (b) It is the figure which showed the example at the time of using a part of container which accommodated the to-be-stirred object as an opposing body.

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

  First, the structure of the stirring apparatus 1 according to this embodiment will be described. Fig.1 (a) is the front view which showed an example of the stirring apparatus 1, The figure (b) is the sectional view on the AA line of the figure (a). As shown in these drawings, the stirring device 1 includes a rotating body 10 that rotates, a counter body 20 that is disposed so as to face the rotating body 10, a drive device 30 that rotationally drives the rotating body 10, and a rotating body. 10 and a drive shaft 40 that connects the drive device 30.

  In the stirring device 1, the rotating body 10 is connected to the tip of the drive shaft 40, and the counter body 20 is disposed at the tip of the rotating body 10. The opposing body 20 is connected to the distal end portions of two rod-shaped fixing members 50 arranged substantially parallel to the drive shaft 40 outside the rotating body 10, and the base end portions of these two fixing members 50 are driven. It is fixed to a bracket 60 fixed to the casing of the device 30. That is, in this embodiment, the rotating body 10 is driven by the driving device 30 to rotate, but the opposing body 20 is fixed so as not to rotate.

  2A is a plan view showing the rotator 10, FIG. 2B is a front view showing the rotator 10, and the same side view, and FIG. 3 is a bottom view showing the body 10. FIG. As shown in these drawings, the rotating body 10 is configured in a substantially bullet shape, specifically, a shape in which one bottom surface 10a of the cylinder is formed in a spherical shape, in other words, a shape in which a cylinder and a hemisphere are combined. . The material which comprises the rotary body 10 is not specifically limited, For example, an appropriate material according to use conditions, such as a metal, ceramics, resin, rubber | gum, wood, etc., is employable.

  A connecting portion 11 to which the drive shaft 40 is connected is provided at the center of the spherical bottom surface 10 a of the rotating body 10. Accordingly, the rotating body 10 is configured to be driven by the driving device 30 and rotate about the central axis C as a rotation axis. In addition, the connection method of the drive shaft 40 and the connection part 11 may be any known method such as a screw or engagement.

  The rotating body 10 includes a plurality of suction ports 12 provided on the surface, a plurality of discharge ports 14 provided on the surface in the same manner as the suction port 12, and a rotating body that connects the suction ports 12 and the discharge ports 14. 10 and a flow passage 16 formed in the interior of the vehicle. The other bottom surface 10 b of the rotating body 10 is formed in a substantially circular plane shape that is orthogonal to the central axis C, and constitutes a first facing surface 18 that faces the facing body 20. In the middle of the flow path 16, an opening 19 that opens in the facing surface 18 is formed.

  The suction port 12 is provided around the connection portion 11 on the bottom surface 10a (that is, on the drive shaft side of the rotating body 10). In the present embodiment, four circular suction ports 12 are arranged at equal intervals on a circumference centered on the central axis C, and are formed in the same direction as the central axis C. The discharge port 14 has a substantially bullet shape, and is provided on the side surface 10 c of the main body 10 so as to be in contact with the peripheral edge of the facing surface 18. In the present embodiment, the four discharge ports 14 are positioned on the outer side in the radial direction (centrifugal direction) of the rotating body 10 with respect to the respective suction ports 12 (positions separated from the central axis C in the direction perpendicular to the central axis C). Respectively. Further, the discharge port 14 is formed in a direction orthogonal to the central axis C.

  The flow passage 16 is formed as a passage connecting one suction port 12 and one discharge port 14. Therefore, four flow passages 16 are formed inside the rotating body 10. Each of the flow passages 16 is formed so as to travel straight from the suction port 12 along the central axis C direction, then bend at a right angle, and straightly travel in parallel with the opposing surface 18 toward the centrifugal direction of the main body 10 to reach the discharge port 14. Has been. That is, the flow path 16 of this embodiment is comprised from the axial direction part 16a of the central axis C direction, and the centrifugal direction part 16b of the centrifugal direction.

  The opening 19 is provided in the centrifugal direction portion 16 b of the flow passage 16. In the present embodiment, the opening 19 is provided over substantially the entire range of the centrifugal direction portion 16 b of the flow passage 16. Therefore, the centrifugal direction portion 16b of the flow passage 16 is formed in a groove shape having a substantially bullet-shaped cross section that is opened in the facing surface 18. That is, the flow passage 16 of the present embodiment has a tunnel-shaped axial portion 16a formed inside the rotating body 12 from the suction port 12 to the facing surface 18, and a facing surface 18 from the axial portion 16a to the discharge port 14. The groove-shaped centrifugal direction portion 16b is formed, and the open portion of the groove-shaped centrifugal direction portion 16b is an opening 19. As a result, the discharge port 14 also has a cross-sectional shape with the opposed surface 18 side open.

  The shapes of the suction port 12 and the discharge port 14 are not particularly limited, 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 is bent at a substantially right angle for ease of processing, but the flow passage 16 may be configured as a smoothly curved curved passage. . In the present embodiment, the strength of the rotating body 10 other than the flow passage 16 is made solid by configuring the portion other than the flow passage 16, but the portion other than the flow passage 16 of the rotating body 10 is formed in a hollow shape. You may do it.

  FIG. 3A is a plan view showing the facing body 20, FIG. 3B is a front view showing the facing body 20 (the same side view), and FIG. 3 is a front view showing the arrangement of the body 20. FIG. As shown in FIGS. 2A and 2B, the opposing body 20 is configured in a substantially disc shape centered on the central axis C, and one surface is the first opposing surface 18 of the rotating body 10. It becomes the 2nd opposing surface 22 which opposes. The second facing surface 22 is a plane orthogonal to the central axis C, and is configured in a circular shape larger than the first facing surface 18 of the rotating body 10. Connection portions 24 to which the two fixing members 50 are connected are formed at two locations in the vicinity of the periphery of the second opposing surface 22 that is the outside of the rotating body 10.

  The material constituting the opposed body 20 is not particularly limited, and as with the rotating body 10, for example, metal, ceramics, resin, rubber, wood, or the like can be used as appropriate. . Further, the rotating body 10 and the opposing body 20 may be made of the same material, or may be made of different materials. Further, due to differences in materials, heat treatment, etc., for example, the hardness of the rotating body 10 (particularly, the first opposing surface 18) is set to be relatively high, and the hardness of the opposing body 20 (particularly the second opposing surface 22) is relatively high. The hardness of both (particularly, the first facing surface 18 and the second facing surface 22) may be made different, for example, by setting it low, or conversely, the hardness of both may be made substantially equal.

  As shown in FIG. 2C, the opposing body 20 is a rotating body in a state where a predetermined gap G is provided between the first opposing surface 18 of the rotating body 10 and the second opposing surface 22 thereof. 10 is arranged coaxially. Further, the first facing surface 18 and the second facing surface 22 are arranged so as to be substantially parallel to each other, and the predetermined gap G is maintained even when the rotating body 10 is rotating, so that the rotating body 10 And the opposing body 20 are not in contact with each other.

  The gap G between the first facing surface 18 and the second facing surface 22 is a portion that applies a shearing force to the agitated material that is a fluid and generates a strong dispersion / mixing action. The magnitude | size of the clearance gap G is not specifically limited, It sets suitably based on various conditions, such as properties, such as a viscosity of a to-be-stirred thing, and the particle size of the powder to mix. Although illustration is omitted, in this embodiment, an adjustment mechanism having a known structure that adjusts the position of the opposing body 20 by adjusting the length of the fixing member 20 is provided in the fixing member 50, and the setting of the gap G is performed. Can be easily changed.

  In the present embodiment, the opposing body 20 is fixed to the driving device 30. For example, the opposing body 20 may be attached to other members such as a container for storing an object to be stirred and a mount on which the driving device 30 is installed. May be fixed. Needless to say, the number of fixing members 50 for fixing the counter body 20 is not limited to two.

  Returning to FIGS. 1A and 1B, the drive device 30 is constituted by a motor in this embodiment, and rotates the rotating body 10 via the drive shaft 40, and rotates about the central axis C. Let In the present embodiment, the drive device 30 is configured to directly drive the drive shaft 40. However, the drive device 30 rotationally drives the drive shaft 40 via a transmission mechanism such as a gear, a chain, and a sprocket. You may comprise. The drive device 30 may be of any existing type such as an electric motor or an air motor.

  Next, the operation of the rotating body 10 and the counter body 20 in the stirring device 1 will be described. 4A is a plan view showing the operation of the rotating body 10 and the opposing body 20, and FIG. 4B is a front view showing the operation of the rotating body 10 and the opposing body 20, and FIG. (C) is sectional drawing which expanded and showed the BB sectional view of the figure (a).

  The rotating body 10 is driven by the driving device 30 and rotates about the central axis C in the object to be stirred that is a fluid, thereby stirring the object to be stirred. When the rotating body 10 is immersed in the fluid and rotated, the fluid that has entered the flow path 16 also rotates together with the rotating body 10. Then, 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 rotating body 10 as shown in FIGS. Since the discharge port 14 is provided on the radially outer side of the main body 10 with respect to the suction port 12, a stronger centrifugal force acts on the discharge port 14 than on the suction port 12. Accordingly, the fluid flows from the suction port 12 toward the discharge port 14 as long as the rotating body 10 is rotating. 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 rotator 10, a flow spreading radially from the side surface 10 c of the 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, when the rotating body 10 is immersed in the fluid and rotated, the fluid near the surface of the rotating body 10 (spherical bottom surface 10a and side surface 10c) rotates together with the rotating body 10 due to the influence of viscosity. Accordingly, centrifugal force also acts on the fluid in the vicinity of the surface of the rotator 10, and as shown in FIGS. 4A and 4B, the fluid in the vicinity of the spherical bottom surface 10a flows to the side surface 10c along the surface. , An accompanying flow of the jet from the discharge port 14.

  In the present embodiment, since one bottom surface 10a is formed in a spherical shape, the shape of the rotating body 10 is formed such that the thickness in the direction of the central axis C gradually decreases outward in the radial direction. Can be smoothly merged with the flow radially spreading from the side surface 10c. Further, by forming the bottom surface 10a in such a shape, a part of the flow toward the suction port 12 is smoothly flowed to the side surface 10c along the bottom surface 10a, and is merged with the flow spreading radially from the side surface 10c. Is possible. As a result, the rotator 10 can generate a powerful flow in the surrounding fluid and perform efficient stirring.

  On the other hand, since the fluid that has entered between the first facing surface 18 and the second facing surface 22 receives the shearing force F by the rotating first facing surface 18 and the stationary second facing surface 22, As shown in (c), it rotates together with the first facing surface 18 while generating a complicated vortex and the like, and this centrifugal force gradually turns it into a centrifugal direction (radius as shown in FIG. (Towards the outside in the direction). Furthermore, between the first facing surface 18 and the second facing surface 22, as the rotating body 10 rotates, as shown in FIG. Inflow of the fluid from the flow path 16 and outflow of the fluid to the flow path 16 at the traveling direction side edge 19b of the opening 19 occur.

  Thus, in the stirring device 1, the shear force F generated by the rotation of the first facing surface 18 between the first facing surface 18 and the second facing surface 22, and the inflow at the edges 19 a and 19 b of the opening 19. In addition, the occurrence of pressure fluctuations (wedge effect, etc.) due to outflow causes the fluid to flow in an extremely complex manner, and crushes and refines the lump of powder mixed in the fluid and the mixture that does not mix with each other. Because it is possible, it is possible to generate a very powerful dispersion / mixing action.

  Further, the fluid sufficiently dispersed and mixed between the first facing surface 18 and the second facing surface 22 in this manner finally flows into a flow radially spreading from the rotating body 10 by the action of centrifugal force. Since they will merge, they will be transported far away from the rotating body 10. In other words, according to the stirring device 1, it is possible to distribute a sufficiently dispersed and mixed fluid substantially uniformly over a wide range, and to efficiently stir a fluid contained in a relatively large container. Is possible.

  FIGS. 5A and 5B are schematic views showing an example of use of the stirring device 1. As shown in these drawings, the stirring device 1 is used in a state in which the rotating body 10 and the counter body 20 are immersed in an object to be stirred 80 that is a fluid contained in a container 70. The stirring device 1 may be fixed to the container 70 or a frame (not shown), or may be provided with an appropriate handle and held and operated by the user.

  By rotating the rotating body 10 by the driving device 30, a flow spreading radially from the rotating body 10 and a swirling flow (vortex) toward the suction port 12 of the rotating body 10 are generated as described above. As a result, as shown in FIGS. 4A and 4B, a complicated circulating flow is generated in the object to be stirred 80. Further, between the first facing surface 18 and the second facing surface 22, a strong dispersion / mixing action occurs due to the occurrence of the shearing force F and the pressure fluctuation, and thereby the sufficiently dispersed / mixed substrate is obtained. The agitated material 80 is conveyed to every corner in the container 70 by the circulating flow generated around the rotating body 10 and the counter body 20, and diffused in a substantially uniform state. In this way, the object to be stirred 80 is stirred very efficiently in a short time.

  Further, in the stirring device 1, the object to be stirred 80 in the container 70 is sucked from the suction port 12 and guided between the first facing surface 18 and the second facing surface 22 through the flow passage 16 and the opening 19. Therefore, even when, for example, it is desired to produce an emulsion from water and oil, the water and oil are appropriately mixed by the swirling flow toward the inlet 12 just by directly putting water and oil into the container 70. After that, it is possible to further finely disperse and mix by the turbulent flow in the flow passage 16, and finally to finely disperse and mix between the first facing surface 18 and the second facing surface 22. That is, according to the stirring device 1, an emulsion can be generated very easily in a short time.

  Next, other forms of the stirring rotor 1 will be described.

  FIG. 6A is a cross-sectional view illustrating an example in which the opening 19 is partially provided. As shown in the figure, the opening 19 is not provided over the entire range of the centrifugal direction portion 16b of the flow passage 16, but may be provided partially. Although not shown, a plurality of openings 19 may be provided for one flow passage 16, or the flow passage 16 may be branched halfway toward the discharge port 14 and the opening 19. It may be configured.

  Moreover, the shape of the opening part 19 is not specifically limited, It can comprise in various shapes, such as a rectangular shape, a circular shape, or an ellipse shape. Further, the centrifugal direction portion 16b of the flow passage 16 is configured to bend or meander along the first facing surface 18, and the opening 19 may be configured to be bent or meandered accordingly. Good. Further, a mesh plate may be disposed in the opening 19. In this way, by adjusting the size, arrangement, number and shape of the openings 19, the dispersion / mixing force can be adjusted appropriately.

  FIGS. 6B and 6C are cross-sectional views illustrating an example in which the first facing surface 18 and the second facing surface 22 are each configured in a substantially conical shape. The 1st opposing surface 18 and the 2nd opposing surface 22 are not limited to what is respectively comprised by planar shape, In this way, you may be comprised, for example in cone shape. In addition to the conical shape, for example, it may be configured in a truncated cone shape or stepped shape, and further includes an appropriate curved surface such as a partial spherical shape or a parabolic shape. Also good. In this case, as shown in FIGS. 2B and 2C, either the first facing surface 18 or the second facing surface 22 may be formed in a convex shape. As described above, by appropriately setting the shapes of the first facing surface 18 and the second facing surface 22, it is possible to obtain a desired dispersion / mixing force according to the properties of the object 80 to be stirred.

  FIGS. 7A and 7B are diagrams illustrating an example in which the size of the gap G between the first facing surface 18 and the second facing surface 22 is changed. Here, FIG. 6A is a cross section showing an example in which the first facing surface 18 is recessed in a substantially conical shape so that the size of the gap G changes in the centrifugal direction of the central axis C. FIG. 4B is an example in which the first opposing surface 18 is bulged between the openings 19 so as to change in a circumferential direction and a centrifugal direction with respect to the central axis C. It is the shown front view.

  In this way, by changing the size of the gap G, for example, in the example shown in FIG. 5A, when the fluid between the first facing surface 18 and the second facing surface 22 flows in the centrifugal direction. In the example shown in FIG. 5B, the wedge effect can also be generated by the rotation of the rotating body 10. Thereby, the dispersion / mixing force between the first facing surface 18 and the second facing surface 22 can be increased.

  FIGS. 7A and 7B show examples in which the size of the gap G gradually decreases as the distance from the central axis C in the centrifugal direction is increased. As the distance increases, the size of the gap G may be gradually enlarged, may be enlarged after being reduced, or may be reduced after being enlarged. Furthermore, the reduction ratio or the enlargement ratio may be changed.

  Moreover, in the example shown to the same figure (a) and (b), although the magnitude | size of the clearance gap G is changed by making the shape of the 1st opposing surface 18 into shapes other than a plane, the 2nd opposing surface The size of the gap G may be changed by changing the shape of the gap G to a shape other than the plane 22, and the size of the gap G with the shapes of both the first facing surface 18 and the second facing surface 22 being shapes other than the plane. May be changed.

  FIG. 7C is a cross-sectional view showing an example in which an air passage 17 that introduces gas outside the stirring target 80 into the flow passage 16 is provided. As described above, by providing the air passage 17 that connects the outside of the object to be stirred 80 and the flow path 16, various gases are efficiently introduced into the object to be stirred 80, and the first facing surface 18 and the second gas flow path are connected to each other. Between the opposed surfaces 22, the gas can be sufficiently dissolved in the object to be stirred 80, or extremely fine bubbles (microbubbles) can be generated.

  In the example shown in FIG. 5C, an example in which the air passage 17 is formed in the drive shaft 40 and the rotating body 10 is shown. However, the rotating body 10 is partially exposed from the object to be stirred 80 ( For example, an air intake may be provided in the exposed portion of the rotating body 10 and the air passage 17 may be formed so as to connect the air intake and the flow passage 16. Further, the air passage 17 may be formed directly between the first facing surface 18 and the second facing surface 22 without using the flow passage 16. Further, a gas may be pumped by connecting a pump to the air passage 17 via a rotary joint or the like.

  FIGS. 8A to 8D are diagrams showing an example in which the concave and convex shapes 18a and 22a are formed on the first facing surface 18 or the second facing surface 22, and B in FIG. It is sectional drawing which expanded and showed the -B line | wire cross section. Here, FIG. 8A shows an example in which the concave and convex shape 18a including the concave portion 18a1 and the convex portion 18a2 is formed on the first opposing surface 18, and FIG. 8B shows the second opposing surface. An example of the case where the concave / convex shape 22a including the concave portion 22a1 and the convex portion 22a2 is formed on the surface 22 is shown. FIG. 10 (c) shows the concave / convex shape 18a including the concave portion 18a1 and the convex portion 18a2 on the first facing surface 18. In addition, an example is shown in which the concave and convex shape 22a including the concave portion 22a1 and the convex portion 22a2 is formed on the second facing surface 22 as well.

  As described above, by providing the first opposing surface 18 or the second opposing surface 22 with the concavo-convex shapes 18a and 22a, more complicated flow between the first opposing surface 18 and the second opposing surface 22 can be achieved. Since the wedge effect and cavitation can be generated in a wide range together with the vortex, the dispersion / mixing force can be further increased. Furthermore, the crushing effect of a powder lump or the like can be improved by causing the projections 18a2 and 22a2 to collide with the lump of powder or the like.

  The shapes of the recesses 18a1 and 22a1 and the projections 18a2 and 22a2 are not particularly limited, and an appropriate shape can be adopted according to the properties, use conditions, and the like of the object 80 to be stirred. For example, in the example shown in FIG. 8D, the recesses 18a1 and 22a1 are each configured to have a semicircular cross-sectional shape, and in addition to this, the recess 18a1 has an arbitrary cross-sectional shape such as a triangular shape. 22a1 can be configured. Needless to say, the convex portions 18a2 and 22a2 can also be configured in an arbitrary cross-sectional shape.

  In addition to the uneven shapes 18a and 22a (or in place of the uneven shapes 18a and 22a), the dispersion / mixing force is adjusted by adjusting the surface roughness of the first facing surface 18 and the second facing surface 22. May be adjusted.

  FIGS. 9A to 9C are diagrams showing examples of the arrangement of the recesses 18a1 and 22a1 and the projections 22a1 and 22a2 in the centrifugal direction. FIG. 9A is an enlarged view taken along the line DD in FIG. It is sectional drawing shown. Here, in FIG. 9A, the recesses 18a1 of the first facing surface 18 and the recesses 22a1 of the second facing surface 22 are formed so that the positions in the centrifugal direction with respect to the central axis C are substantially equal to each other. In addition, an example is shown in which the positions of the convex portion 18a2 of the first opposing surface 18 and the convex portion 22a2 of the second opposing surface 22 in the centrifugal direction with respect to the central axis C are made substantially equal to each other. FIG. 4B shows the position of the concave portion 18a1 of the first opposed surface 18 and the position of the concave portion 22a1 of the second opposed surface 22 in the centrifugal direction shifted from each other, and the convex portion of the first opposed surface 18 An example is shown in which the position in the centrifugal direction with respect to the central axis C of the convex portion 22a2 of 18a2 and the second opposing surface 22 is shifted.

  As described above, by appropriately setting the arrangement of the concave portions 18a1, 22a1 and the convex portions 22a1, 22a2 in the centrifugal direction, the object 80 to be stirred between the first opposing surface 18 and the second opposing surface 22 is in the centrifugal direction. Since it is possible to adjust the path when flowing into the water, the dispersion / mixing force can be adjusted appropriately.

  Further, as shown in FIG. 5C, the concave portion 18a1 of the first facing surface 18 and the convex portion 22a2 of the second opposing surface 22 are arranged so as to face each other, and a part of the convex portion 22a2 is formed. The concave portion 18a1 is accommodated in the concave portion 18a1, or the convex portion 18a2 of the first opposing surface 18 and the concave portion 22a1 of the second opposing surface 22 are opposed to each other, and a part of the convex portion 18a2 is formed. By accommodating in the inside of the recess 22a1, it is possible to make the path when the stirring object 80 flows in the centrifugal direction into a labyrinth shape.

  In such a case, it becomes possible to generate a more complicated flow and vortex in a wide range, so that the dispersion / mixing force can be further increased. In addition, since it is possible to increase the flow resistance and make it difficult for the object 80 to flow in the centrifugal direction, the object 80 is retained between the first facing surface 18 and the second facing surface 22 as much as possible. Thus, dispersion and mixing can be performed more finely.

  In the stirring device 1, since the flow in the flow passage 16 can discharge the object 80 to be stirred appropriately from between the first facing surface 18 and the second facing surface 22 through the opening 19, Even when the flow in the centrifugal direction between the first facing surface 18 and the second facing surface 22 is reduced, the processing capacity is not lowered.

  FIG. 9D is a diagram showing an example in which an outer peripheral wall 22 b is provided on the outer peripheral portions of the first facing surface 18 and the second facing surface 22. Thus, the flow in the centrifugal direction between the first facing surface 18 and the second facing surface 22 can also be adjusted by providing the outer peripheral wall 22b.

  The outer peripheral wall 22b may protrude from the outer peripheral portion of the second opposing surface 22 as shown in FIG. 4D, or protrude from the outer peripheral portion of the first opposing surface 18. It may be provided. In the example shown in FIG. 4D, the example in which the uneven shapes 18a and 22a are not provided is shown, but the uneven shapes 18a and 22a may be provided. Further, the outer peripheral wall 22b may be provided over the entire circumference of the outer peripheral portion of the first opposing surface 18 and the second opposing surface 22, or may be provided partially. Furthermore, it goes without saying that the height and shape of the outer peripheral wall 22b can be any height and shape depending on the properties of the object 80 to be stirred.

  FIGS. 10A to 10C and FIGS. 11A to 11C are diagrams showing examples of the uneven shapes 18a and 22a. The bottom view of the rotating body 10 and the plan view of the opposing body 20 are arranged side by side. Show. Here, FIG. 10A shows an example in which concave portions 18a1, 22a1 and convex portions 18a2 and 22a2 continuous in the centrifugal direction are formed radially, and FIG. 10B shows a concave portion 18a1 continuous in the centrifugal direction. 22a1 and convex portions 18a2 and 22a2 are formed in a curved radial shape, and FIG. 8C shows an example in which a plurality of substantially hemispherical convex portions 18a2 and 22a2 are radially arranged. ing.

  As described above, the uneven shape 18a of the first facing surface 18 and the uneven shape 22a of the second facing surface 22 are constituted by the concave portions 18a1, 22a1 and the convex portions 18a2, 22a2 which are continuous in the centrifugal direction. Alternatively, a plurality of concave portions 18a1, 22a1 or convex portions 18a2, 22a2 may be arranged in the centrifugal direction.

  FIG. 11A shows an example in which a plurality of annular concave portions 18a1, 22a1 and convex portions 18a2, 22a2 that are continuous in the circumferential direction are formed concentrically, and FIG. An example in which a plurality of convex portions 18a2 and 22a2 arranged in the circumferential direction is formed in a concentric manner is shown, and FIG. 10C shows a plurality of substantially rectangular convex portions 18a2 and 22a2 in a zigzag shape along the circumferential direction. An example of arrangement is shown in FIG.

  As described above, the concavo-convex shape 18a of the first facing surface 18 and the concavo-convex shape 22a of the second facing surface 22 are composed of the concave portions 18a1, 22a1 and the convex portions 18a2, 22a2 which are continuous in the circumferential direction. Alternatively, a plurality of concave portions 18a1, 22a1 or convex portions 18a2, 22a2 may be arranged in the circumferential direction.

  In addition to these, the uneven shape 18a of the first facing surface 18 and the uneven shape 22a of the second facing surface 22 are, for example, a spiral shape, a wave shape, a lattice shape, a matrix shape, etc. Any shape can be adopted depending on the case. Further, the uneven shape 18a of the first facing surface 18 and the uneven shape 22a of the second facing surface 22 may be configured in the same shape or a complementary shape, or in different shapes. It may be configured.

  12 (a) to 12 (d) show an example of the case where the convex and concave shapes 18a and 22a are provided and the convex portions 18a2 and 22a2 are configured in a wedge shape (or a triangular shape) having apexes 18a3 and 22a3. FIG. More specifically, in this example, as shown in FIG. 5A, the convex portion 18a2 of the concave-convex shape 18a of the first opposing surface 18 has a cross-sectional shape parallel to the first opposing surface 18 at the apex 18a3. A plurality of concentric circles are arranged so that the apex 18a3 faces the rotation direction of the rotating body 10. Further, the convex portion 22a2 of the concavo-convex shape 22a of the second facing surface 22 is configured such that a cross-sectional shape parallel to the second facing surface 22 is a wedge shape having a vertex 22a3, and the vertex 22a3 is a rotating body. A plurality are arranged concentrically so as to face in the direction opposite to the rotational direction of 10. The convex portions 18a2 and 22a2 are arranged with their positions in the centrifugal direction shifted from each other, and as shown in FIGS. 5B to 5D, the first facing surface 18 and the second facing surface 22 are arranged. Are adjacent to each other.

  By doing in this way, as the rotating body 10 rotates, the vertices 18a3 and 22a3 of the convex portions 18a2 and 22a2 can collide with the lump of powder mixed in the object to be stirred 80. It is possible to increase the crushing capacity of the like. Further, by forming the convex portions 18a2 and 22a2 in such a shape, as shown in FIGS. 5B to 5D, the convex portions of the first facing surface 18 as the rotating body 10 rotates. When the distance 18a2 and the convex portion 22a2 of the second facing surface 22 pass each other, the distance S between the two gradually decreases, so that the lump of powder mixed in the object to be stirred 80 is convex. It is also possible to crush between 18a2 and convex part 22a2.

  In this case, what is the cross-sectional shape parallel to the first facing surface 18 and the second facing surface 22 of the convex portions 18a2 and 22a2 as long as the width gradually increases or decreases along the circumferential direction? It may be a simple shape. Further, the vertices 18a3 and 22a3 are not necessarily sharp.

  FIG. 13A shows an example of the case where the concave and convex shapes 18a and 22a are provided and the concave portion 18a1 of the first opposing surface 18 and the concave portion 22a1 of the second opposing surface 22 are configured in a groove shape that intersects each other. FIG. In this example, as shown in FIG. 6A, the recesses 18a1 and 22a1 are formed in the same shape as the groove formed on the sliding surface of the stone mortar, and the recess 18a1 and the recesses are formed as the rotating body 10 rotates. The intersecting portion of 22a1 is moved in the centrifugal direction. By forming the recesses 18a1 and 22a1 in such a groove shape, the object to be stirred 80 between the first facing surface 18 and the second facing surface 22 is conveyed in the centrifugal direction while being sheared, like the stone mill. It becomes possible. Thereby, the to-be-stirred object 80 can be actively flowed with the centrifugal force in the centrifugal direction while generating a strong dispersion / mixing force between the first facing surface 18 and the second facing surface 22.

  In this case, the recesses 18a1 and 22a1 may be configured linearly as shown in FIG. 1A, or may be configured curvedly, One of the recesses 18a1 and 22a1 may be configured to be curvilinear (for example, spiral), and the other may be configured to be linear. Contrary to the stone mortar, the intersecting portion of the recess 18a1 and the recess 22a1 is moved in the centripetal direction (toward the central axis C) as the rotating body 10 rotates, so that the first opposed surface 18 and the first You may make it inhibit the flow by the centrifugal force of the to-be-stirred object 80 between the two opposing surfaces 22.

  FIGS. 13B and 13C show that a part including the first facing surface 18 of the rotating body 10 is a detachable detachable member 10d, and the first facing surface 18 is attached to and detached from the rotating body 10. It is the figure which showed an example at the time of comprising. In addition, the figure (b) is a front view (side view) of the rotary body 10, and the figure (c) is a bottom view of the detachable member 10d.

  In this case, the detachable member 10d is configured, for example, in a shape in which four openings 19 are notched in a disk as shown in FIG. 5C, and is attached to the rotating body 10 by a known method such as a screw or engagement. Fixed. In addition, although not shown in the drawings, an appropriate uneven shape 18a is formed on the portion that becomes the first facing surface 18 of the detachable member 10d as necessary.

  In this way, for example, even when the first facing surface 18 is worn, the entire rotating body 10 need not be replaced, but only the detachable member 19d need be replaced. Costs can be reduced. In addition, since the detachable member 10d can be made of a wear-resistant material, and the rotating body 10 can be made of a relatively inexpensive and easy-to-process material such as resin, the manufacturing cost of the stirring device 1 can be reduced. It is also possible.

  Also, a plurality of types of attaching / detaching members 10d in which different uneven shapes 18a and openings 19 of different sizes or shapes are formed are prepared together with a plurality of types of opposing bodies 20 in which different uneven shapes 22a are formed. If they are combined and exchanged as appropriate, the dispersion / mixing force can be easily adjusted, so that the versatility of the stirring device 1 can be enhanced.

  In addition, the detachable member 10d may replace the first facing surface 18 as a whole as shown in FIGS. 2B and 2C, or may be divided into a plurality of parts to form the first surface. The facing surface 18 may be partially exchangeable. Further, the shape of the detachable member 10d is not particularly limited, and the detachable member 10d may have a larger dimension in the centrifugal direction (for example, larger diameter) than the rotating body 10, or may be in the centrifugal direction. The dimension may be small (for example, small diameter). Moreover, in the opposing body 20, you may make it comprise the 2nd opposing surface 22 so that attachment or detachment is possible.

  14A to 14C show an example in which the traveling direction opposite side edge 19a and the traveling direction side edge 19b of the opening 19 are formed so as to gradually expand toward the second facing surface 22 side. FIG. 5 is a cross-sectional view illustrating an enlarged cross section taken along line BB in FIG. Here, Fig.14 (a) has shown the example which rounded and expanded the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b, and the same figure (b) shows the advancing direction reverse side edge part. 19a shows an example in which the advancing direction side edge 19b is linearly enlarged, and FIG. 10C shows an example in which the advancing direction reverse side edge 19a and the advancing direction side edge 19b are recessed. ing.

  Thus, the flow path 16 in the traveling direction reverse side edge 19a is gradually expanded by enlarging the traveling direction reverse side edge 19a and the traveling direction side edge 19b of the opening 19 toward the second facing surface 22 side. From the first opposing surface 18 and the second opposing surface 22 to the flow path 16 from between the first opposing surface 18 and the second opposing surface 22 at the traveling side edge 19b. Therefore, the dispersion / mixing power can be increased. Further, the dispersion / mixing force can be adjusted by appropriately devising the shapes of the traveling direction opposite side edge portion 19a and the traveling direction side edge portion 19b.

  In addition, the shape of the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b is not limited to the example shown to the same figure (a)-(c), Arbitrary shapes can be employ | adopted. Moreover, you may make it expand not only both the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b but to enlarge either one. Moreover, you may make it enlarge parts other than the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b of the edge part of the opening part 19. As shown in FIG.

  Further, although not shown, the traveling direction opposite side edge 19a and the traveling direction side edge 19b of the opening 19 may be formed so as to be gradually reduced toward the second facing surface 22 side. Also in this case, both the traveling direction opposite side edge portion 19a and the traveling direction side edge portion 19b may be reduced, or only one of them may be reduced, one of them may be reduced, and the other May be enlarged. Moreover, you may make it reduce parts other than the advancing direction reverse side edge part 19a of the edge part of the opening part 19, and the advancing direction side edge part 19b. Moreover, the shape of the edge part of the opening part 19 including the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b is changed by replacing | exchanging the detachable member 10d shown in FIG.13 (b) and (c). You may do it.

  FIG. 14 (d) is a diagram showing an example of a case where protrusions 19 c are provided on the traveling direction opposite side edge 19 a and the traveling direction side edge 19 b of the opening 19. In this way, by providing the protruding portion 19c protruding toward the inside of the opening portion 19, a lump of mixed powder or the like or a mixture that does not mix with each other can collide with the protruding portion 19c. It is possible to increase the mixing force.

  In addition, the shape of the protrusion part 19c is not specifically limited, Arbitrary shapes can be employ | adopted. Moreover, the front-end | tip part of the protrusion part 19c may be sharpened like the example shown to the figure (d), and may be rounded. Further, the projecting portion 19c may be provided on both the traveling direction opposite side edge portion 19a and the traveling direction side edge portion 19b, or the projecting portion 19c may be provided on only one of them. You may make it make the shape of the protrusion part 19c differ in the direction reverse side edge part 19a and the advancing direction side edge part 19b. Moreover, you may make it provide the protrusion part 19c in parts other than the advancing direction reverse side edge part 19a and the advancing direction side edge part 19b of the edge part of the opening part 19. As shown in FIG. Further, the protruding portion 19C may be fixed to the rotating body 10 so as to be detachable by screws or engagement, and the protruding portion 19c may be replaced according to the properties of the object 80 to be stirred. The protrusion 19c may be exchangeable together with the first facing surface 18 by providing the protrusion 19c on the detachable member 10d shown in 13 (b) and 13 (c).

  FIGS. 15A to 15D are diagrams illustrating examples of other arrangement configurations of the rotating body 10 and the counter body 20. First, FIG. 5A shows an example in which the opposing body 20 is arranged on the driving device 30 side with respect to the rotating body 10. In this case, a through hole 26 is formed in the opposing body 20, and the drive shaft 40 is inserted through the through hole 26. When the rotating body 10 and the opposing body 20 are arranged in this way, the object 80 to be stirred at the lower part of the container 70 can be sucked up by the suction port 12.

  FIG. 2B shows an example in which the rotating body 10 is arranged on both sides of the opposing body 20. In this case, the two rotating bodies 10 also serve as one opposing body 20, and stirring is performed by the two rotating bodies 10, and both surfaces of the opposing body 20 are used as the second opposing surfaces 22. Since it is possible to perform dispersion and mixing with this, it is possible to increase the processing capacity.

  In the example shown in FIG. 2B, a through-hole 26 is formed in the opposing body 20, and two rotating bodies 10 are connected through the through-hole 26, so that one driving device 30 can provide two rotating bodies. 10 is driven to rotate, but the two rotating bodies 10 may each be driven by a dedicated driving device 30. Further, the two rotating bodies 10 may be rotated in the same direction, or may be rotated in directions opposite to each other.

  FIG. 2C shows an example in which not only the rotating body 10 but also the opposing body 20 is rotated. In this example, the drive shaft 40 and the rotator 10 are configured in a hollow structure, and a counter body drive shaft 42 for driving the counter body 20 is inserted through the drive shaft 40 and the rotary body 10 so as to be connected to the counter body 20. And the drive device 30 is comprised so that rotation drive of the drive shaft 40 connected to the rotary body 10 and the opposing body drive shaft 42 connected to the opposing body 20 is respectively possible.

  In this case, the rotating body 10 is rotated and the counter body 20 is rotated in the direction opposite to the rotation direction of the rotating body 10, that is, the rotating body 10 and the counter body 20 are reversed in the opposite direction, thereby the first counter surface. Since the shearing force F between 18 and the second opposing surface 22 can be increased, the dispersion / mixing force can be further increased. In addition, the rotational speed (rotational speed) of the rotary body 10 and the opposing body 20 may be the same, or may be different. The dispersion / mixing force can be adjusted by appropriately adjusting the rotation speeds of the rotating body 10 and the counter body 20.

  Further, in the example shown in FIG. 5C, the rotating body 10 and the opposing body 20 may be rotated in the same direction. Even in this case, if the rotation speed of the rotating body 10 and the rotation speed of the opposing body 20 are different, the shear force F can be generated between the first opposing surface 18 and the second opposing surface 22. Further, the opposed body drive shaft 42 is not inserted into the drive shaft 40 and the rotary body 10, but is connected to the opposed body 20 from the opposite side of the rotary body 10, and the drive device 30 separate from the rotary body 10. The counter body 20 may be driven to rotate.

  The opposing body 20 has a central axis other than those fixedly arranged as in the examples shown in FIGS. 10A and 10B and those rotated as in the example shown in FIG. It may be arranged in a state of being supported rotatably around C. That is, the opposing body 20 may be disposed so as to be rotated together with the rotating rotating body 10 due to the viscosity of the fluid between the first opposing surface 18 and the second opposing surface 22. Even in this case, if there is a speed difference between the rotation of the rotating body 10 and the rotation of the opposing body 20, a shear force F can be generated between the first opposing surface 18 and the second opposing surface 22. .

  FIG. 4D shows an example when one of the two rotating bodies 10 is the opposing body 20. In this example, two rotating bodies 10 are arranged so that the first facing surfaces 18 face each other, one rotating body 10 is rotationally driven by the drive shaft 40, and the other rotating body 10 is driven by the driving shaft 40 and one side. It is made to rotate by the opposing body drive shaft 42 inserted in the inside of this rotary body 10. In this case, for example, the lower rotating body 10 functions as the facing body 20, and the first facing surface 18 of the lower rotating body 10 functions as the second facing surface 22. Further, the opposing body 20 is provided with the suction port 12, the discharge port 14, the flow passage 16 and the opening 19.

  In the example shown in FIG. 4D, the two rotating bodies 10 may be rotated in opposite directions, or may be rotated in the same direction at different rotational speeds. Further, the two rotating bodies 10 may be driven by different driving devices 30, respectively. The two rotating bodies 10 may be configured in the same shape as each other or may be configured in different shapes. Further, the opening 19 may not be provided in the rotating body 10 as the opposing body 20.

  FIGS. 16A and 16B are views showing an example in which a part of the container 70 containing the object to be stirred 80 is used as the opposing body 20. In the example shown in FIG. 5A, the rotating body 10 is disposed close to the bottom wall portion 72 of the container 70, and the first facing surface 18 leaves a predetermined gap G and the inner wall surface 72 a of the bottom wall portion 72. It is trying to face. By doing in this way, the bottom wall part 72 of the container 70 can be made into the opposing body 20, and the inner wall surface 72a of the bottom wall part 70 can be made into the 2nd opposing surface 22.

  In the example shown in FIG. 5B, the rotating body 10 is disposed close to the bottom wall portion 72 of the container 70, and the first facing surface 18 leaves a predetermined gap G and the inner wall surface 72 a of the bottom wall portion 72. The bottom wall 72 of the container 70 is the opposing body 20, the inner wall surface 72 a of the bottom wall 72 is the second opposing surface 22, and the rotating body 10 is fixed to the bottom wall by the magnetic coupling 90. 72 is driven to rotate from the outside. In this example, by attaching a magnet 92 to the rotating body 10, the rotating body 10 can be rotationally driven by the magnetic coupling 90 from the outside of the container 70 sandwiching the bottom wall portion 72. A cylindrical linear motor may be used instead of the magnetic coupling 90.

  Thus, by using a part of the container 70 as the opposing body 20, the stirring device 1 can be simply configured, and maintenance such as cleaning and removal of clogging can be facilitated. In addition, by using the bottom wall portion 72 of the container 70 as the counter body 20, it is possible to stir the accumulated matter accumulated in the bottom portion of the container 70, so that efficient stirring can be performed. In addition, you may make it move the rotary body 10 along the inner wall surface 72a of the bottom wall part 72 during stirring. Moreover, you may make it make parts other than the bottom wall part 72 of the container 70 into the opposing body 20, such as a side wall part.

  As described above, the stirring device 1 according to the present embodiment is disposed so as to face the rotating body 10 from one side of the rotating shaft direction and the rotating body 10 that rotates about the rotating shaft (center axis C). The counter body 20, the suction port 12 provided on the surface of the rotating body 10, the discharge port 14 provided on the surface of the rotating body 10 at a position on the outer side in the centrifugal direction from the rotation axis with respect to the suction port 12, The rotating body 10 has a first facing surface 18 facing the facing body 20, and the facing body 20 has a first gap surface G with a predetermined gap G therebetween. A second facing surface 22 that faces 18 is formed, and an opening 19 that opens in the first facing surface 18 is formed in the middle of the flow path 16.

  With such a configuration, an excellent stirring force by suction from the suction port 12 and discharge from the discharge port 14 and a strong force by the shearing force F between the first facing surface 18 and the second facing surface 22 are obtained. It is possible to achieve both a good dispersion and mixing force with one stirring device 1. That is, since the processing capability is high while providing a strong dispersion / mixing force, efficient stirring can be performed regardless of the properties and amount of the object 80 to be stirred.

  Further, the flow passage 16 has a centrifugal direction portion 16b formed so as to be directed outward in the centrifugal direction of the rotation axis (center axis C), and the opening 19 is on the first facing surface 18 side of the centrifugal direction portion 16b. Is provided. In this way, since the opening 19 can be efficiently formed at an effective position, the stirring target 80 is appropriately introduced between the first facing surface 18 and the second facing surface 22. In addition, the dispersing / mixing action can be appropriately generated.

  Further, at least one of the first facing surface 18 and the second facing surface 22 may be formed with uneven shapes 18a, 22a. By doing so, it becomes possible to generate a more complicated flow and vortex between the first facing surface 18 and the second facing surface 22 and to appropriately generate a wedge effect, cavitation, and the like. , Can increase dispersion and mixing power.

  Further, recesses 18a1 and 22a1 are formed in one of the first facing surface 18 and the second facing surface 22, and the recesses 18a1 and 22a1 are formed in the other of the first facing surface 18 and the second facing surface 22, respectively. Convex portions 18a2 and 22a2 that are at least partially accommodated therein may be formed. In this way, the flow path between the first facing surface 18 and the second facing surface 22 can be made labyrinth-like, and more complicated flows and vortices can be generated, and the flow resistance can be increased. Can be made difficult to flow.

  Further, the first opposing surface 18 is formed with a first convex portion (convex portion 18a2) having a wedge-shaped cross section with the apex 18a3 directed in the rotational direction of the rotating body 10, and the second opposing surface 22 is rotated. A second convex part (convex part 22a2) having a wedge-shaped cross section with the apex 22a3 directed in the direction opposite to the rotational direction of the body 10 is formed, and the first convex part has a rotational axis (center) with respect to the second convex part. It may be arranged at a position shifted in the centrifugal direction of the axis C). In this way, the apexes 18a3 and 22a3 can be crushed by colliding with a lump of powder or the like mixed in the object to be stirred 80, a mixture that does not mix with each other, and the like, and can be efficiently miniaturized. Further, when the first convex portion (the convex portion 18a2) and the second convex portion (the convex portion 22a2) pass each other, a lump of powder or the like can be crushed between the two gradually becoming narrower.

  Further, a groove-shaped first recess (recess 18a1) is formed on the first facing surface 18, and a groove-shaped second recess (recess 22a1) is formed on the second facing surface 22. The first recess and the second recess may be formed in directions that intersect each other. By doing in this way, it becomes possible to exhibit the effect similar to a stone mill between the 1st opposing surface 18 and the 2nd opposing surface 22, for example, it applies the shear force and makes the to-be-stirred object 80 in the centrifugal direction. It can be conveyed, or conversely, flow in the centrifugal direction due to centrifugal force can be inhibited.

  Further, the edge portions of the opening 19 (for example, the traveling direction reverse side edge portion 19a and the traveling direction side edge portion 19b) are formed so as to gradually expand toward the second facing surface 22 side. Also good. By doing in this way, the flow of the to-be-stirred object 80 from the flow path 16 between the 1st opposing surface 18 and the 2nd opposing surface 22, and the 1st opposing surface 18 and the 2nd opposing surface 22 of Since it becomes possible to promote the inflow of the stirring object 80 into the flow path 16 from between, the dispersion / mixing force can be increased. In addition, the dispersion / mixing force can be adjusted by devising the shape of the edge.

  In addition, a protrusion 19 c that protrudes toward the inside of the opening 19 may be formed at the edge of the opening 19. By doing in this way, the lump of the mixed powder etc., the mixture etc. which are not mixed mutually can collide with the protrusion part 19c, and a dispersion | distribution and mixing force can be raised.

  Moreover, the opposing body 20 is fixedly arranged so as not to rotate around the rotation axis (center axis C). By doing in this way, the shear force F can be reliably generated between the first facing surface 18 and the second facing surface 22.

  The opposing body 20 is a part (for example, the bottom wall part 72) of the container 70 that accommodates the object to be stirred 80, and the second opposing surface 22 is a part of the inner wall surface of the container 70 (for example, the bottom wall part 72). It may be the inner wall surface 72a) of the wall 72. By doing in this way, while being able to comprise the stirring apparatus 1 simply, a maintenance can be made easy.

  Moreover, the opposing body 20 may rotate around a rotation axis (center axis C). In this case, by rotating (reversing) the opposing body 20 in the opposite direction to the rotating body 10, the shearing force F can be increased to increase the dispersion / mixing force. Further, by rotating the opposing body 20 in the same direction as the rotating body 10, the dispersion / mixing force can be weakened. Furthermore, the dispersion / mixing force can be adjusted as appropriate by adjusting the difference in rotational speed between the rotating body 10 and the counter body 20.

  Further, the stirring device 1 includes a counter body suction port provided on the surface of the counter body 20, a counter body discharge port provided on the surface of the counter body 20 at a position on the outer side in the centrifugal direction from the rotation axis than the counter body suction port, A counter body flow path connecting the counter body suction port and the counter body discharge port may be further provided. Moreover, you may make it form the opposing body opening part opened in the 2nd opposing surface 22 in the middle of the opposing body flow path. By doing in this way, since the opposing body 20 can also be given stirring force by suction from the opposing body suction port and discharge from the opposing body discharge port, it is possible to perform more efficient stirring. Become.

  Further, the first facing surface 18 may be configured to be detachable from the rotating body 10. In this way, even when the first facing surface 18 is worn or damaged, it can be quickly replaced. In addition, the uneven shape 18a of the first facing surface 18 and the size and shape of the opening 19 can be easily changed.

  In the present embodiment, an example in which the rotating body 10 is configured in a substantially bullet shape is shown, but the present invention is not limited to this, and the shape of the rotating body 10 is, for example, a columnar shape, a polygonal column shape, or a cone shape. Arbitrary shapes such as a shape, a polygonal pyramid shape, a truncated cone shape, a polygonal frustum shape, and a partial spherical shape can be adopted. Similarly, an arbitrary shape can be adopted as the shape of the opposing body 20. In addition, a concavo-convex shape may be provided in a portion other than the first facing surface 18 and the second facing surface 22 of the rotating body 10 and the facing body 20.

  Further, in the present embodiment, an example in which the area of the second facing surface 22 is configured to be larger than the area of the first facing surface 18 has been described, but the second facing surface 22 is configured to be larger than the first facing surface 18. The first opposing surface 18 and the second opposing surface 22 may be configured to have the same area. The first facing surface 18 may face a part of the second facing surface 22. Similarly, the second facing surface 22 is a part of the second facing surface 18. It may be a thing facing.

  Further, in the present embodiment, an example mainly including the set of the rotating body 10 and the counter body 20 has been shown, but the stirring device 1 may include a plurality of sets of the rotating body 10 and the counter body 20. . Further, when a plurality of sets of rotating bodies 10 and opposing bodies 20 are provided, a part of the rotating bodies 10 or opposing bodies 20 may be used as shown in FIG.

  In this embodiment, the flow passage 16 is configured to connect one suction port 12 and one discharge port 14. However, the flow passage 16 includes one suction port 12 and a plurality of discharge ports 14. May be configured to connect a plurality of suction ports 12 and one discharge port 14, or may be configured to connect a plurality of suction ports 12 and a plurality of discharge ports. It may be configured to connect the outlets 14.

  Further, a collision member that collides with the object to be stirred 80 may be provided inside the flow passage 16 or inside the suction port 12 or the discharge port 14. In this case, the collision member may be configured to guide the object to be stirred 80 in a predetermined direction. Further, a filter that captures foreign matters such as dust may be provided inside the flow passage 16.

  Further, a through-hole that connects between the first facing surface 18 and the second facing surface 22 and the outside may be formed in the facing body 20. In this case, depending on the position at which the through hole is formed, the agitated object 80 flows between the first facing surface 18 and the second facing surface 22 through the through hole, or the first facing surface 18 and the second facing surface. The to-be-stirred object 80 can be discharged from between the surfaces 22. In this case, the shape of the through hole, the position where the through hole is formed, the direction of the through hole, and the number of the through holes are not particularly limited, and can be set as appropriate.

  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.

  The stirrer of the present invention can be used in fields such as stirring, dispersion / mixing of various fluids, and bubble mixing.

DESCRIPTION OF SYMBOLS 1 Stirring apparatus 10 Rotating body 12 Suction port 14 Discharge port 16 Flow path 16b Centrifugal part of the flow path 18 First facing surface 18a Concave shape of the first facing surface 18a1 Recessed portion of the first facing surface 18a2 First facing Surface convex portion 18a3 Edge of convex portion of wedge-shaped cross section 19 Opening portion 19a Opening portion traveling direction opposite side edge portion 19b Opening portion traveling direction side edge portion 19c Protruding portion 20 Opposing body 22 Second facing surface 22a Second facing surface Concave and convex shape of opposing surface 22a1 Concave portion of second opposing surface 22a2 Convex portion of second opposing surface 22a3 Apex of convex portion of wedge-shaped cross section 70 Container 80 Stirred object C Central axis G Gap

Claims (14)

A rotating body that rotates about a rotation axis;
A counter body arranged to face the rotary body from one side of the rotation axis direction;
A suction port provided on the surface of the rotating body;
A discharge port provided at a position on the outer side in the centrifugal direction from the rotation shaft with respect to the suction port on the surface of the rotating body;
A flow path connecting the suction port and the discharge port,
The rotating body has a first facing surface facing the facing body,
The opposing body has a second opposing surface that faces the first opposing surface with a predetermined gap therebetween,
In the middle of the flow path, an opening that opens at the first facing surface is formed,
Stirring device. The flow passage has a centrifugal direction portion formed so as to be directed outward in the centrifugal direction of the rotating shaft,
The opening is provided on the first facing surface side of the centrifugal direction portion,
The stirrer according to claim 1. An uneven shape is formed on at least one of the first facing surface and the second facing surface,
The stirrer according to claim 1 or 2. A recess is formed in one of the first facing surface and the second facing surface,
The other of the first facing surface and the second facing surface is formed with a convex portion that is at least partially accommodated in the concave portion.
The stirrer according to claim 3. The first opposing surface is formed with a first convex portion having a wedge-shaped cross section whose apex is directed in the rotation direction of the rotating body,
On the second facing surface, a second convex portion having a wedge-shaped cross section with its apex directed in a direction opposite to the rotation direction of the rotating body is formed,
The first convex portion is disposed at a position shifted in the centrifugal direction of the rotation shaft with respect to the second convex portion,
The stirring device according to claim 3 or 4. A groove-shaped first recess is formed on the first facing surface,
A groove-shaped second recess is formed on the second facing surface,
The first recess and the second recess are formed in directions intersecting each other,
The stirrer according to claim 3. The edge of the opening is formed so as to gradually expand toward the second facing surface side,
The stirrer according to any one of claims 1 to 6. The edge of the opening is formed with a protrusion that protrudes toward the inside of the opening.
The stirrer according to any one of claims 1 to 7. The opposing body is fixedly arranged so as not to rotate around the rotation axis.
The stirrer according to any one of claims 1 to 8. The opposing body is a part of a container for storing an object to be stirred,
The second facing surface is a part of the inner wall surface of the container,
The stirring device according to claim 9. The opposing body rotates around the rotation axis,
The stirring device according to claim 1. A counter body inlet provided on the surface of the counter body;
A counter discharge port provided on the surface of the counter member at a position on the outer side in the centrifugal direction from the rotation shaft than the counter suction port;
Further comprising a counter body flow passage connecting the counter body suction port and the counter body discharge port,
The stirring device according to claim 11. In the middle of the opposing body flow path, an opposing body opening that opens in the second opposing surface is formed,
The stirrer according to claim 12. The first facing surface is configured to be detachable from the rotating body,
The stirrer according to any one of claims 1 to 13.

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