JP6002882B2 - Mixing and stirring apparatus and method - Google Patents

Description

  The present invention relates to a mixing and stirring apparatus, and more particularly to a mixing and stirring apparatus that does not use a stirring blade.

  Conventionally, in the mixing and stirring of liquid materials, many techniques for forcibly mixing and stirring contents by rotating a stirring blade provided in a container have been adopted. However, in the method using a stirring blade, it is essential to periodically wash away the residue adhering to the stirring blade, which has lowered the working efficiency. In this regard, Japanese Patent Application Laid-Open No. 2002-224551 (Patent Document 1) receives a Coriolis acceleration due to revolution and rotation by rotating the container at the same time while revolving the container containing the object to be processed. Disclosed is a mixing and stirring apparatus that does not use a stirring blade and is characterized by mixing a processed product.

  However, the mixing and stirring apparatus disclosed in Patent Document 1 adopts a configuration in which the angle formed by the revolution axis and the rotation axis is about 45 °, and two stirring containers are arranged symmetrically with respect to the revolution axis. For the purpose of securing an appropriate revolving diameter according to the size, the device must be large for the volume of the container, and the structure of the device that revolves the container containing the material with a predetermined diameter once. There was a limit to the weight of materials that could be mixed and stirred.

JP 2002-224551 A

  This invention is made | formed in view of the subject in the said prior art, and this invention aims at providing the novel mixing and stirring apparatus which does not use a stirring blade.

  As a result of earnestly examining the new mixing and stirring apparatus that does not use the stirring blade, the present inventor found that when the container was rotated with the rotation axis perpendicular to the rotation axis of the vortex in the mixing and stirring apparatus using Coriolis force, It has been found that the mixing and stirring effect is maximized. From this knowledge, the inventor of the present invention can maximize the volume of the container per apparatus installation area and smoothly perform the material replacement under the condition in which the rotation axis of the vortex and the rotation axis of the container are orthogonal to each other. As a result, the present inventors have arrived at the present invention.

  That is, according to the present invention, a cylindrical container for containing a liquid material, vortex generating means for generating a vortex with a first axis as a rotation axis for the liquid material in the container, There is provided a mixing and stirring device including a container rotating means for rotating the container with a second axis orthogonal to the first axis as a rotation axis.

  As described above, according to the present invention, there is provided a novel mixing and stirring apparatus that does not use a stirring blade and can maximize both the mixing and stirring effect and the volume of the container per apparatus installation area.

The principle figure of the mixing stirring method of this invention. The figure which shows the basic composition of the mixing and stirring apparatus using the forced vortex of this embodiment. The figure which shows the mounting structure of the mixing and stirring apparatus using the forced vortex of this embodiment. The figure which showed a mode that the material introduce | transduced to the mixing and stirring apparatus using the forced vortex of this embodiment was sent out outside after mixing and stirring. The figure which shows the basic composition of the mixing and stirring apparatus using the free vortex of this embodiment. The figure which shows the mounting structure of the mixing and stirring apparatus using the free vortex of this embodiment. The figure which showed a mode that the material introduce | transduced to the mixing and stirring apparatus using the free vortex of this embodiment was sent out outside after mixing and stirring. The figure which shows the basic composition of the mixing and stirring apparatus using the free vortex of 2nd Embodiment. The figure which shows the mounting structure of the mixing and stirring apparatus using the free vortex of 2nd Embodiment. The figure which shows the washing apparatus of 3rd Embodiment. The figure which shows the mounting structure of the washing apparatus of 3rd Embodiment. The figure which shows the mounting structure of the washing apparatus of 3rd Embodiment. Explanatory drawing of experiment. Explanatory drawing of experiment. Explanatory drawing of experiment. The graph showing the mixing state of the paint in angle (theta) = 90 degree. The graph showing the mixing state of the paint in angle (theta) = 75 degree. The graph showing the mixing state of the paint in angle (theta) = 60 degrees. The graph showing the mixing state of the paint in angle (theta) = 45 degrees. The graph showing the mixing state of the paint in angle (theta) = 30 degrees. The graph showing the mixing state of the paint in angle (theta) = 15 degrees. The graph which shows the time-sequential change of a mixed state about six types of angle conditions. Explanatory drawing of experiment.

  Hereinafter, the present invention will be described with reference to embodiments shown in the drawings, but the present invention is not limited to the embodiments shown in the drawings. In the drawings referred to below, the same reference numerals are used for common elements, and the description thereof is omitted as appropriate.

In the mixing and stirring method of the present invention, first, a container for containing a liquid material is prepared. As used herein, a liquid means a mixture of two or more liquids, a mixture of a liquid and a powder, a mixture of a liquid and particles, and the like. In the present invention, it is preferable to prepare a cylindrical container (that is, a container having a cylindrical cavity) as shown in FIG. Hereinafter, based on FIG. 1, the principle of the mixing and stirring method of the present invention will be described. Axis in the present invention, the longitudinal direction of the container relative to the cylindrical liquid material contained in the container D along with causing a vortex to the rotating shaft, which in parallel thereto, perpendicular to the rotation axis A ₁ of the vortex rotating the container D and a ₂ as a rotation axis. As a result, the rotational axis of the vortex generated in the container D is tilted by the Coriolis force and eventually collapses. In the present invention, the liquid filled in the container D is mixed and stirred using the vortex collapse phenomenon caused by the Coriolis force.

As a result of intensive research on the relationship between the angle (acute angle) between the vortex rotation axis A ₁ and the container rotation axis A ₂ and the mixing and stirring effect, the present inventor has found that the vortex rotation axis A ₁ and the container rotation axis A _2. It has been found that the mixing and stirring effect is maximized when the angle formed by is 90 °. Then, if the orthogonal rotation axis A ₂ of the rotary shaft A ₁ and the container of the vortex, Advantageously, found that it is possible to maximize the volume of the container relative footprint device, so leading to the present invention is there.

  Here, the vortex generated in the liquid includes a forced vortex in which the peripheral speed is proportional to the radius and a free vortex in which the peripheral speed is inversely proportional to the radius, and any vortex can be used in the method of the present invention. . Hereinafter, an apparatus for mixing and stirring using forced vortex and an apparatus for mixing and stirring using free vortex will be described.

(Mixing and stirring device using forced vortex)
FIG. 2 shows a basic configuration of the mixing and stirring apparatus 100 according to the embodiment of the present invention. The mixing and stirring device 100 uses forced vortex and is suitable for mixing and stirring a material having high viscosity. The mixing and stirring apparatus 100 according to the present embodiment includes a cylindrical container 10, a forced vortex generating means for generating a forced vortex for the liquid filled in the container 10, and a rotation in which the container 10 is installed. A pedestal 11 and a pedestal rotating means 12 for rotating the rotating pedestal 11 are included.

  In the mixing and stirring apparatus 100, the container 10 is installed on the rotating base 11 via the supports 14 and 14. As shown in an enlarged manner on the right side of FIG. 2A, the support bodies 14 and 14 are configured to include a ball bearing 15, and support the container 10 on the rotary base 11 so as to be freely rotatable. In addition, the support body in this invention is not limited to the form shown to Fig.2 (a), What kind of structure will be sufficient if the container 10 can be rotatably supported on the rotation base 11? There may be.

  The container 10 is configured to receive rotation power from the rotation power generation means 13 and rotate with the cylindrical shaft of the container 10 as a rotation axis. When the container 10 is rotated on the rotating base 11 around the cylindrical axis of the container 10, a forced vortex is generated in the liquid material filled in the container 10. In the present embodiment, for example, as shown in FIG. 2 (a), the rotational power of the rotational power generating means 13 may be transmitted to the container 10 via a belt or a chain. As shown to b), you may comprise so that the rotational power of the rotational power generation means 13 may be transmitted to the container 10 by meshing | engagement of a gear, and these structures correspond to the forced vortex generation means in this embodiment. The forced vortex generating means in the present invention may be any means as long as it is a means capable of rotating the container 10 around the cylindrical axis of the container 10. It should be noted that the present invention is not limited to the specific configuration.

Pedestal rotation means 12 is a means for transmitting rotational power to the rotating base 11 rotates the rotary base 11 an axis A ₂ that is perpendicular to the rotational axis A ₁ of the forced vortex as a rotation axis. As a result, the base rotating means 12, the container 10 is fixed on the rotary base 11 is rotated with the shaft A ₂ as the rotation axis. Incidentally, the base rotating unit 12 in the present invention are essentially may be any means as long as means capable of rotating the container 10 with the axis A ₂ as the rotation axis, the present invention is, It should be noted that the pedestal rotating means 12 (essentially, the container rotating means) is not limited to a specific configuration.

Here, the rotation axis A ₁ of the forced vortex generated in the container 10 can be replaced with the cylindrical axis of the container 10 (the rotation axis), the base rotating means 12 in this embodiment, the container 10 the cylinder axis ( it can be defined as a means for rotating the rotary base 11 an axis a ₂ that is orthogonal to the rotation axis) as a rotation axis. In the present embodiment, to balance during rotation, it is desirable to take the center of gravity of the whole is a structure disposed on the rotating base 11 on the rotation axis A _2. Specifically, defining the rotation axis A ₂ passing through the center of the circular rotary base 11, the center of the rotary base 11 is disposed a suitable balancer on a rotating base 11 so that the center of gravity (hereinafter, the other The same applies to the embodiment).

In the present embodiment, is configured to be controlled independently the rotational speed and the rotational speed around the rotational axis A ₂ of around the rotation axis A ₁ of the container 10, two appropriate speed parameter is rotation power generating means 13 and pedestal rotating means 12 are set. In addition, each parameter can obtain | require an appropriate value based on the preliminary experiment, computer simulation, etc. which were implemented in advance (Hereafter, it is the same also in other embodiment.).

  The use of the mixing and stirring device 100 is not limited to mixing and stirring liquid materials, and the container 10 can be used as a commercial laundry device by configuring the container 10 as a washing tub. In this case, as shown in an enlarged manner on the right side of FIG. 2 (b), a waterproof door may be provided on the outer peripheral wall of the container 10, and the laundry may be taken in and out therefrom. The basic configuration of the mixing and stirring apparatus 100 using the forced vortex has been described above. Next, a specific mounting configuration of the mixing and stirring apparatus 100 will be described.

FIG. 3 shows a mixing and stirring apparatus 100a which is a specific mounting configuration of the mixing and stirring apparatus using forced vortex. In the mixing and stirring apparatus 100a, a pressure feeding system for introducing a material before processing into the container 10 and collecting the material after processing is added. Pumping system includes a coaxial double circular tube 16 to the rotation axis A ₂ and the shaft, two coaxial double circular tube 17a which is connected to two of the bottom surface of the cylindrical container 10 to the rotation axis A ₁ and the shaft, 17b A pipe 19 is connected to the upper part of the outer pipe of the coaxial double circular pipe 16, and a pipe 20a and a pipe 20b are connected to the lower part of the outer pipe of the coaxial double circular pipe 16. These are connected to the outer tube of the coaxial double circular tube 17a and the outer tube of the coaxial double circular tube 17b. On the other hand, the inner tube of the coaxial double circular tube 17a and the inner tube of the coaxial double circular tube 17b are connected to the inner tube of the coaxial double circular tube 16 via a pipe 21a and a pipe 21b, respectively.

In the pumping system shown in FIG. 3, as the container 10 becomes rotatable about the axis of rotation _{A 1,} 2 two coaxial double circular tube 17a, 17b, respectively, the rotary joint 22a and the rotary joint 22b It is connected to the container 10 via. On the other hand, the coaxial double circular pipe 16 has an upper part to which the pipe 19 is connected and a lower part to which the pipes 20 a and 20 b extending to the container 10 and the pipes 21 a and 21 b are connected via a rotary pipe joint 23. and which, the container 10 while piping is connected is configured to be rotatable about the axis of rotation a _2. Further, as shown in the cross-sectional view of FIG. 3B, the container 10 is provided with a disk-like piston 24 configured to be movable in the longitudinal direction of the container.

  Furthermore, the piping 21a and 21b are provided with electromagnetic valves 25a and 25b, respectively, and the piping 20a and 20b are provided with electromagnetic valves 26a and 26b, respectively, so that the opening and closing of each electromagnetic valve can be controlled individually. It is configured as follows. According to the above-described pumping system, the processed material and the newly processed material can be smoothly exchanged. Hereinafter, the mechanism will be described with reference to FIG.

  FIG. 4 is a diagram showing, in time series, how the materials introduced into the mixing and stirring apparatus 100a are mixed and stirred and then sent to the outside. First, as shown in FIG. 4 (a), the electromagnetic valve 25a of the pipe 21a and the electromagnetic valve 26b of the pipe 20b are opened, and the electromagnetic valve 25b of the pipe 21b and the electromagnetic valve 26a of the pipe 20a are closed. The pump 18 is activated. As a result, the material before processing is introduced into the outer pipe of the coaxial double circular pipe 16 through the pipe 19, and then introduced into the container 10 through the outer pipe of the pipe 20b and the coaxial double circular pipe 17b. The piston 24 moves to the left side of the drawing due to the introduction pressure. As shown in FIG. 4B, when an appropriate means such as a pressure sensor detects that the piston 24 has reached the left end of the container, it is determined that the material has been filled in the container 10 and the pumping pump 18. Stops.

The material filling of the container 10 is completed, as shown in FIG. 4 (c), after all of the electromagnetic valve is closed, the container 10, is rotated about an axis of rotation A ₁ previously described, this parallel rotating about the axis of rotation a ₂ in. As a result, the forced vortex generated in the container 10 is collapsed by the Coriolis force, and the material in the container 10 is mixed and stirred by the action.

  When the mixing and stirring process is completed by rotating the container 10 with two orthogonal rotating shafts for a predetermined time, the rotation of the container 10 is stopped. At this time, the electromagnetic valve 25b of the pipe 21b and the electromagnetic valve 26a of the pipe 20a are opened, while the electromagnetic valve 25a of the pipe 21a and the electromagnetic valve 26b of the pipe 20b are closed. When the pumping pump 18 is operated in this state, as shown in FIG. 4 (d), the new material is outside the pipe 19, the outer pipe of the coaxial double circular pipe 16, the pipe 20a, and the outer side of the coaxial double circular pipe 17a. It introduce | transduces in the container 10 through a pipe | tube, and the piston 24 moves to the paper surface right side with the introduction pressure. As a result, the processed material is pushed out from the container 10 into the inner pipe of the coaxial double circular pipe 17b, and then the processed material passes through the pipe 21b, the inner pipe of the coaxial double circular pipe 16, and the pipe 25. It is sent to the collection destination. When it is detected that the piston 24 has reached the right end of the container, it is determined that the processed material has been replaced with a new material, and the pumping pump 18 is stopped. By repeating the procedure shown in FIGS. 4A to 4D, it is possible to continuously perform the mixing and stirring process while smoothly replacing the processed material and the newly processed material.

  As described above, according to the present embodiment described above, it is possible to suitably mix and stir a high-viscosity material in a short time, and it is possible to continuously perform the mixing and stirring process in a completely sealed environment. The risk of contamination from the external environment is reduced. Furthermore, a system that does not use a stirring blade is adopted, and the piston in the container automatically cleans the interior as the material is changed, so that it is not necessary to clean the stirring blade and the inner wall of the container as in the prior art. The configuration described above could be applied to a large plant that mixes and stirs a high-viscosity paste-like material. As mentioned above, although the mixing stirring apparatus using a forced vortex was demonstrated, next, the mixing stirring apparatus using a free vortex is demonstrated.

(Mixing and stirring device using free vortex)
FIG. 5 shows a basic configuration of a mixing and stirring apparatus 200 according to an embodiment of the present invention. The mixing and stirring device 200 utilizes a free vortex and is suitable for mixing and stirring materials having a low viscosity. In the description of the mixing and stirring apparatus 200, the same reference numerals are used for the elements common to the previously described mixing and stirring apparatus 100, and the description thereof is omitted as appropriate.

  The mixing and stirring device 200 includes a cylindrical container 10, free vortex generating means for generating a free vortex in the liquid filled in the container 10, a rotating pedestal 11 on which the container 10 is installed, and a rotating pedestal. The base rotation means 12 for rotating 11 is comprised. Unlike the mixing and stirring device 100, the container 10 in the mixing and stirring device 200 is fixed on the rotating base 11.

  In the mixing and stirring device 200, the liquid material is introduced from one end of the container 10 in the tangential direction of the inner circumferential circle of the container 10 via the pressure pump 18, recovered from the other end, and then again pumped. The liquid is circulated at a predetermined flow rate by returning to the above, and this configuration corresponds to the free vortex generating means. The free vortex generating means in the present invention may be any means as long as it can generate a free vortex in the container 10, and the present invention has a specific configuration of the free vortex generating means. Note that this is not a limitation.

In mixing and stirring device 200, the feed pump 18 is configured so that rotational speeds of around the rotation axis A ₂ of the flow rate and vessel 10 for introducing the liquid material in the container 10 can be independently controlled, two appropriate The speed parameter is set for each of the pumping pump 18 and the pedestal rotating means 12.

The pedestal rotating means 12 rotates the rotating pedestal 11 with the axis A ₂ orthogonal to the free vortex rotation axis A ₁ as the rotation axis. As a result, the base rotating means 12, the container 10 is fixed on the rotary base 11 is rotated with the shaft A ₂ as the rotation axis. Here, since the rotation axis A ₁ of the free vortex generated in the container 10 can be replaced with the cylindrical axis (rotation axis) of the container 10, the pedestal rotation means 12 in the present embodiment has the cylindrical axis ( it can be defined as a means for rotating the rotary base 11 an axis a ₂ that is orthogonal to the rotation axis) as a rotation axis. The basic configuration of the mixing and stirring apparatus 200 using the free vortex has been described above. Next, a specific mounting configuration of the mixing and stirring apparatus 200 will be described.

FIG. 6 shows a mixing and stirring apparatus 200a which is a specific mounting configuration of the mixing and stirring apparatus using a free vortex. In the mixing and stirring apparatus 200a, a pressure feeding system for introducing the material before the processing and recovering the material after the processing is added to the container 10. The pumping system includes a coaxial double circular pipe 16 having a rotation axis A ₂ as an axis and a pumping pump 18, and a pipe 19 is connected to an upper part of the outer pipe of the coaxial double circular pipe 16. On the other hand, a pipe 32 a and a pipe 32 b are connected to the lower part of the outer pipe of the coaxial double circular pipe 16, and each is connected to both ends of the container 10. A pipe 33 a is further connected to the lower part of the outer pipe of the coaxial double circular pipe 16, and the pipe 33 a extending from the outer pipe of the coaxial double circular pipe 16 is a liquid material in the tangential direction of the inner circumferential circle of the container 10. Is connected to the outer peripheral surface of one end of the container 10 at an angle capable of introducing.

On the other hand, the inner pipe of the coaxial double circular pipe 16 is branched into three forks, of which two pipes 31a and 31b are respectively connected to both ends of the container 10, and the remaining pipes 33b are connected to the container 10. Connected to the outer peripheral surface of the other end. Incidentally, the container 10 is such that rotatable about an axis of rotation _{A 1,} coaxial double circular tube 16, an upper piping 19 is connected, to the container 10 extending pipes 31a, 31b, 32a, 32b , 33a, 33b are connected to the lower part via the rotary joint 23, and the point provided with the disk-shaped piston 24 inside the container 10 is the same as that of the mixing and stirring device 100a described above. It is the same.

  The inner pipe of the coaxial double circular pipe 16 is connected to a pipe 25, and the pipe 25 and the pipe 19 are bridged by a pipe 37 on the downstream side of the pressure feed pump 18. The piping 37 is provided with an electromagnetic valve 40, the piping 25 downstream of the connection point with the piping 37 is provided with an electromagnetic valve 39, and the piping 19 downstream of the connection point with the piping 37 is provided with an electromagnetic valve. A valve 38 is provided. Furthermore, the piping 31a and 31b are provided with electromagnetic valves 36a and 36b, the piping 32a and 32b are provided with electromagnetic valves 35a and 35b, respectively, and the piping 33a and 33b are respectively provided with electromagnetic valves 34a. And 34b are provided so that the opening and closing of each electromagnetic valve can be controlled individually.

  According to the above-described pumping system, the processed material and the newly processed material can be smoothly exchanged. Hereinafter, the mechanism will be described with reference to FIG.

  FIG. 7 is a diagram showing, in chronological order, how materials introduced into the mixing and stirring apparatus 200a are mixed and stirred and then delivered to the outside. First, as shown in FIG. 7A, the electromagnetic pump 38 of the pipe 19, the electromagnetic valve 36a of the pipe 31a, and the electromagnetic valve 35b of the pipe 32b are opened, and the pressure pump 18 is closed with the other electromagnetic valves closed. Is activated. As a result, the material before processing is introduced into the outer tube of the coaxial double circular pipe 16 through the pipe 19 and then introduced into the container 10 through the pipe 32b, and the piston 24 is moved to the left side of the drawing by the introduction pressure. Move to. As shown in FIG. 7B, when an appropriate means such as a pressure sensor detects that the piston 24 has reached the left end of the container, it is determined that the material has been filled in the container 10, and the pump 18 is supplied. Stops.

When the filling of the material into the container 10 is completed, as shown in FIG. 7C, the electromagnetic valve 40 of the pipe 37, the electromagnetic valve 34a of the pipe 33a, and the electromagnetic valve 34b of the pipe 33b are opened, and other electromagnetic valves The pressure feed pump 18 is operated under a predetermined flow rate condition in a state in which is closed. As a result, the material circulates in the route of the pipe 19 → the outer pipe of the coaxial double circular pipe 16 → the pipe 33 a → the container 10 → the pipe 33 b → the inner pipe of the coaxial double circular pipe 16 → the pipe 25 → the pipe 37 → the pipe 19. In the meantime, a free vortex is generated in the container 10. While generating free vortex thus actuates the feed pump 18 is rotated at a predetermined speed about the axis of rotation A ₂ of the container 10 in parallel thereto. As a result, the free vortex generated in the container is collapsed by the Coriolis force, and the material in the container 10 is mixed and stirred by the action.

While circulating the material in the container 10, the mixing and stirring treatment is rotated for a predetermined time period around the container 10 rotary shaft A ₂ is completed, rotation of the container 10 is stopped. At this time, the electromagnetic valve 35a of the pipe 32a, the electromagnetic valve 36b of the pipe 31b, the electromagnetic valve 38 of the pipe 19 and the electromagnetic valve 39 of the pipe 25 are opened, and the other electromagnetic valves are closed. Operate. As a result, the material before processing is introduced into the container 10 through the pipe 19, the outer pipe of the coaxial double circular pipe 16, and the pipe 32a, and the piston 24 moves to the right side of the page due to the introduction pressure. Then, the processed material in the container 10 is pushed out from the pipe 31 b, and then the processed material is sent to the collection destination through the inner pipe of the coaxial double circular pipe 16 and the pipe 25. When it is detected that the piston 24 has reached the right end of the container, it is determined that the processed material has been replaced with a new material, and the pumping pump 18 is stopped. By repeating the procedure shown in FIGS. 7A to 7D, it is possible to continuously perform the mixing and stirring process while smoothly replacing the processed material and the newly processed material.

  As described above, according to the present embodiment described above, it is possible to suitably mix and stir a low-viscosity material in a short time, and it is possible to continuously perform the mixing and stirring process in a completely sealed environment. The risk of contamination from the external environment is reduced. Furthermore, a system that does not use a stirring blade is employed, and the piston in the container automatically cleans the interior at the same time as the replacement of the material, so that it is not necessary to clean the stirring blade and the inner wall of the container as in the prior art. In addition, the apparatus can be reduced in weight because it can be configured with only one system of rotational power for rotating the container without using rotational power for generating free vortices. As described above, the mixing and stirring device using the free vortex has been described. Next, a second embodiment using the free vortex will be described.

  FIG. 8 shows a basic configuration of a mixing and stirring apparatus 300 that is a second embodiment using a free vortex. In the description of the mixing and stirring apparatus 300, the same reference numerals are used for the elements common to the mixing and stirring apparatus 200 described above, and the description thereof is omitted as appropriate.

The mixing and stirring apparatus 300 includes a cylindrical container 10, free vortex generating means for generating a free vortex in the liquid in the container 10, a rotating pedestal 11 on which the container 10 is fixed, and a rotating pedestal 11. A pedestal rotating means 12 for rotating is included. In mixing and stirring device 300, as a free vortex generating means, and a screw 30 to one of the bottom surface of the cylindrical container 10 is provided, the rotation shaft cylinder axis A ₁ of the vane chamber 10 of the screw 30 in the container 10 Is rotated to generate a free vortex in the liquid in the container 10. Incidentally, the mixing and stirring device 300 is configured so that it can independently control the rotational speed of around the rotation axis A ₂ of the rotational speed and the chamber 10 of the screw 30, two appropriate speed parameter screw 30 and the pedestal It is set for each of the rotating means 12.

  FIGS. 9A and 9B show a mixing and stirring apparatus 300a which is a specific mounting configuration of a mixing and stirring apparatus using a free vortex. FIG. 9 illustrates an embodiment in which the rotational power of the pedestal rotating means 12 is transmitted by gear meshing to rotationally drive the rotating pedestal 11, but other suitable methods such as belt driving and chain driving are adopted. Also good.

In the mixing and stirring apparatus 300a, the pipe 41a and the pipe 41b are connected to the center of the outer peripheral upper surface and the outer peripheral lower surface of the container 10, respectively. The pipe 41a is connected to the pipe 43a via the rotary fitting 42a, and the pipe 41b. Is connected to the pipe 43b via the rotary pipe joint 42b. The piping 41a and the piping 41b are provided with an electromagnetic valve 44a and an electromagnetic valve 44b, respectively. Here, the pipe 41a and the pipe 43a and the pipe 41b and the pipe 43b, respectively, is rotatably connected around a rotation axis _{A 2} through the rotary joint 42a and the rotary joint 42b, as a result, the container 10 There is rotatable about the axis of rotation a _2. Further, an air vent electromagnetic valve 46 is provided on the outer peripheral upper surface of the container 10, and a pressure feed pump 18a and a pressure feed pump 18b are connected to the pipe 43a and the pipe 43b, respectively. The mixing and stirring device 300a is configured so that the opening and closing of the electromagnetic valve 44a, the electromagnetic valve 44b, and the air vent electromagnetic valve 46 can be individually controlled.

  When the material is introduced, if the electromagnetic valve 44a of the pipe 41a and the electromagnetic valve 46 for venting air are opened and the pumping pump 18a is operated with the electromagnetic valve 44b of the pipe 41b closed, the material before processing is put into the container 10. When introduced and appropriate means such as a pressure sensor detect that the container 10 is filled with material, the pumping pump 18a stops in response.

When the filling of the material into the container 10 is completed, after the air venting electromagnetic valve 46 and the electromagnetic valve 44a of the pipe 41a are closed, the screw 30 is rotated at a predetermined rotational speed to generate a free vortex in the container 10. In parallel with this, it drives the base rotating means 12 rotates the container 10 at a predetermined speed about the axis of rotation A _2. As a result, the free vortex generated in the container is collapsed by the Coriolis force, and the material filled in the container 10 is mixed and stirred by the action.

While rotating the screw 30 at a predetermined rotational speed, the mixing and stirring treatment is rotated for a predetermined time period around the container 10 rotary shaft A ₂ is completed, the base rotating means 12 is stopped. At this time, the air venting electromagnetic valve 46 and the electromagnetic valve 44b are opened, and the other electromagnetic valves 44a are closed, and the pumping pump 18b is operated in this state. As a result, the processed material is sent to the collection destination via the pipe 41b and the pipe 43b. By repeating the above-described procedure, the mixing and stirring process can be continuously performed while smoothly replacing the processed material and the newly processed material.

  As mentioned above, although the mixing and stirring apparatus 300 has been described as the second embodiment using the free vortex, the third embodiment in which the mixing and stirring method using the free vortex is applied to the washing apparatus will be described below. .

FIG. 10 is a view showing only the periphery of the washing tub of the washing apparatus 400 to which the mixing and stirring method using the free vortex is applied, and FIGS. 10A and 10B are a perspective view and a sectional view, respectively. Show. Washing apparatus 400, rotate the washing tub 50 configured as a double container, the two rotor blades 52a of the free vortex generating means, and 52 b, a rotary base 51 that washing tub 50 is fixed, the axis _{A 2} A pedestal rotating means (not shown) for rotating the rotating pedestal 51 as a shaft is included, and a number of dewatering holes are formed on the inner peripheral surface of the washing tub 50 (double container). In addition, when the bottom face of the washing tub 50 and the rotating pedestal 51 are configured integrally, the pedestal rotating means can be defined as a washing tub rotating means for rotating the washing tub 50.

A drain pipe 54 provided with an electromagnetic valve 57 is connected to the center of the bottom surface of the washing tub 50, and the pipe 54 is connected to a pipe 55 via a rotary fitting 56. As a result, the washing tub 50 is rotatable about a rotation axis A ₂ in a state of being connected to a pipe 55 for effluent. Rotating blades 52a, 52b are disposed the axis A ₁ perpendicular to the rotation axis A ₂ as to generate a free vortex of the rotary shaft, facing the inner peripheral surface 50a of the washing tub 50, preferably, its axis of rotation There are arranged opposite to each other so as to coincide with the rotation axis a _1.

In the washing apparatus 400, rotor blade 52a, which is configured to independently control the rotational speed of around the rotation axis A ₂ of the rotational speed and the washing tub 50 of 52 b, two appropriate speed parameter is rotor blades 52a , 52b and a pedestal rotating means (or a washing tub rotating means) (not shown).

Water and detergent are put into the washing tub 50 containing the laundry with the electromagnetic valve 57 closed, and then the rotary blades 52a and 52b are simultaneously rotated at a predetermined rotational speed. At this time, it is preferable to rotate the rotary blade 52a and the rotary blade 52b in opposite directions. For example, if two rotor blades 52a, the rotation axis of 52b coincides with the rotation axis _{A 1,} the rotary blade 52a is rotated to the rotation axis _{A 1} around the forward direction _{R 1,} the rotational blades 52b, the rotation axis _{A 1} It is rotated in the reverse direction R ₂ around. By rotating blades 52a and the rotary blade 52b are rotated in the opposite directions, a strong free vortex accompanied by twisting inside of the rotation axis A ₁ direction of the washing tub 50 is generated. When the rotating pedestal 51 (that is, the washing tub 50) is rotated at a predetermined speed simultaneously with the rotation of the rotary blades 52a and 52b, the free vortex generated in the washing tub 50 is collapsed by the Coriolis force. As a result, a strong agitating flow is spread throughout the washing tub 50, and a high detergency is realized.

  Next, the washing apparatuses 400A to 400D, which are specific mounting configurations of the washing apparatus to which the mixing and stirring method using the free vortex is applied, will be described. In each drawing referred to below, common elements are denoted by the same reference numerals and description thereof is omitted.

  A washing apparatus 400A shown in FIG. 11A is a washing tub 401 configured as a double container, two rotating blades 402a and 402b as free vortex generating means, and a washing tub rotating means for rotating the washing tub 401. The motor 405 and a gear 406 and a gear 407 referred to as a rotational force transmission mechanism connected to the motor 405 are configured. In the washing tub 401, two rotary blades 402a and 402b disposed to face the inner peripheral surface are rotated in opposite directions by the motor 404a and the motor 404b, respectively. On the other hand, a gear 407 is fixed on the outer periphery of the cylindrical portion integrated at the center of the bottom surface of the washing tub 401, and the driving force of the motor 405 is transmitted to the cylindrical portion via the gear 406 and the gear 407. The washing tub 401 is configured to rotate. In the washing apparatus 400A, power can be supplied to the motor 404a and the motor 404b via the slip ring (the same applies to the following embodiments).

  In the washing apparatus 400B shown in FIG. 11B, the washing tub 401 is fixed on the rotating pedestal 420. The rotating pedestal 420 is connected to a pulley mechanism 408 referred to as a rotational force transmission mechanism, and the driving force of the motor 405 is transmitted to the rotating pedestal 420 via the pulley mechanism 408, whereby the washing tub 401 rotates. It is configured as follows.

  In the washing apparatus 400C shown in FIG. 12A, the rotation of the motor 409 fixed to the bottom surface of the washing tub 401 is applied to the two rotary blades 402a and 402b via the rotational force transmission mechanism including the pulley mechanisms 410a and 410b. It is transmitted and is configured to drive each rotor simultaneously.

  Furthermore, in the washing apparatus 400D shown in FIG. 12B, the rotation of the motor 414 is transmitted to the rotary base 420 via the pulley mechanism 412, so that the washing tub 401 rotates, and The rotation of the motor 414 is transmitted to the two rotary blades 402a and 402b via the rotational force transmission mechanism including the pulley mechanisms 412 and 413 and the pulley mechanisms 410a and 410b, and the rotary blades are driven simultaneously. . In washing apparatus 400D, motor 414 is connected to both pulley mechanisms 412 and 413 in the washing mode (washing / rinsing), and is connected only to pulley mechanism 412 in the dewatering mode.

  As described above, according to the washing apparatus of the present embodiment described above, since the laundry can be stirred in water without using a stirring blade as in the prior art, washing can be performed without damaging the fabric.

  As described above, the present invention has been described with the embodiments. However, the present invention is not limited to the above-described embodiments, and other functions and effects of the present invention are within the scope of embodiments that can be considered by those skilled in the art. As long as it plays, it is included in the scope of the present invention.

  Hereinafter, although the mixing stirring apparatus of this invention is demonstrated more concretely using an Example, this invention is not limited to the Example mentioned later.

<Example 1>
(Experimental device)

  To the cylindrical transparent container 510 shown in FIG. 13 (length: 140 mm, inner diameter: 52 mm), add white paint (specific gravity 1.44, viscosity 7PR · s) up to 80% of the capacity, then the remaining 20% Was filled with a red paint (specific gravity 1.13, viscosity 4PR · s) and capped. The transparent container 510 in which the red and white paints were layered in this way was set in the experimental apparatus shown in FIG. 14, and the paints were mixed and stirred.

FIG. 14 shows a side view and a top view of the experimental apparatus 500 used in the experiment. The experimental apparatus 500 includes a circular platform 502 that is rotated by a first motor 501 with the vertical direction as a revolution axis, a rectangular platform 504 that is fixed to a support column 503 erected on the circular platform 502, and a second The container holder 506 is configured to be rotated by the motor 505 with the longitudinal direction of the rectangular base 504 as the rotation axis, and the inclination of the rectangular base 504 (that is, the angle θ formed between the revolution axis A ₂ and the rotation axis A ₁ ). ) Can be changed freely.

  In this experiment, after setting the transparent container 510 shown in FIG. 13 to the container holder 506 of the experimental apparatus 500, both the first motor 501 (revolving shaft) and the second motor 505 (spinning shaft) are approximately constant. The first and second rotation speeds (first motor 501: 120 to 132 rpm / second motor 505: 720 to 950 rpm) were mixed and stirred. In this experiment, six angle conditions (90 °, 75 °, 60 °, 45 °, 30 °, 15 °) are set for the angle θ (acute angle) between the revolution axis and the rotation axis, and 10 minutes for each condition. During the mixing and stirring, the transparent container 510 was photographed with a digital video camera 507.

(Evaluation of mixing and stirring effect)
Based on the digital image photographed by the digital video camera 507, the mixed state of the paint under each angle condition was evaluated by the following method.

  In this experiment, an evaluation value “red degree (0 to 1)” was introduced to evaluate the mixing and stirring effect. Hereinafter, the “degree of red” will be described. First, as shown in FIG. 15, for the image of the transparent container 510, a strip-shaped analysis region R (horizontal axis: n pixels, vertical axis: k pixels) extending from the bottom side to the inlet side of the container is defined. Here, for each of the k pixels on the vertical axis of the analysis region R shown enlarged in the broken line in FIG. 15, the “red degree” was obtained by the following equation. In the following formula, R, G, and B indicate the RGB value (0 to 255) of the pixel.

  If the color of the pixel is white, the RGB value of the pixel should be R = G = B. Therefore, according to the above equation (1), the degree of red is “0”. On the other hand, when the color of the pixel is red, the RGB value of the pixel should be R = finite value, G = 0, and B = 0. Therefore, according to the above equation (1), the degree of red is “1”. "become.

  The average value of the k “degrees of red” calculated in this way was used as the representative value of “degree of red” on the vertical axis.

  FIG. 16 is a graph showing the mixing state of the paint at an angle θ = 90 °. The vertical axis of the graph represents the representative value of “red degree” (hereinafter simply referred to as “red degree”) of the vertical axis of the analysis region R, and the horizontal axis of the graph represents the horizontal axis of the analysis region R. The coordinates (coordinates where the left end (bottom side) of the horizontal axis of the analysis region R is “0” and the right end (entrance side) is “1.0”) are shown. FIGS. 16 (a), (b), (c), and (d) show graphs after 0 minute (before start), after 2 minutes, after 4 minutes, and after 6 minutes, respectively (below) The same applies to FIGS. 17 to 21).

  Before the start of stirring, as shown in FIG. 16A, the “red degree” of the section of the abscissa 0 to 0.8 filled with the white paint is almost 0, and the red paint is filled. The “degree of red” in the section with the abscissa of 0.8 to 1.0 is substantially 1.0 (hereinafter, the same applies to FIGS. 17 to 21). Then, as the time of 2 minutes and 4 minutes elapses, the average value of the “red degree” is rapidly averaged, and when 6 minutes have elapsed, the “red degree” is 0 to 1 on the abscissa. It became about 0.05 over all the sections of 0.0. At this point, when the transparent container 510 was visually confirmed, the paint had a uniform light pink color.

  FIG. 17 is a graph showing the mixing state of the paint at an angle θ = 75 °. When the angle θ = 75 °, even if the time of 2 minutes and 4 minutes elapses, the averaging of the “red degree” does not proceed, and even when 6 minutes elapse, the interval of the abscissa 0 to 0.1 The “red degree” of the section with the abscissa of 0.85 to 1.0 showed a value approximately twice that of the remaining section. When the transparent container 510 was visually confirmed at this time, dark pink paint remained on both ends of the container.

  FIG. 18 is a graph showing the mixing state of the paint at an angle θ = 60 °. When the angle θ = 60 °, even if the time of 2 minutes and 4 minutes elapses, the averaging of the “red degree” does not proceed, and even when 6 minutes have elapsed, the abscissa is 0 to 0.3 interval. The “red degree” of the section with the abscissa of 0.6 to 1.0 showed a value approximately twice that of the remaining section. When the transparent container 510 was visually confirmed at this time, dark pink paint remained on both ends of the container.

  19, 20, and 21 are graphs showing the state of mixing of the paints at angles θ = 45 °, 30 °, and 15 °, respectively. In the case of the angle θ = 45 °, 30 °, and 15 °, the averaging of the “red degree” did not progress even when the time of 2 minutes and 4 minutes passed. When 6 minutes passed, each transparent container 510 was visually confirmed. As a result, each sample was only stirred at the tip side of the container, and the paint on the tip side of the container remained dark pink. .

Next, the standard deviation σ of “degree of red (representative value)” for each elapsed time is shown below for samples of six kinds of angle conditions (90 °, 75 °, 60 °, 45 °, 30 °, 15 °). Obtained by the formula. In the following formula, X _i represents the degree of red (representative value) at the pixel coordinate i on the horizontal axis, n represents the number of pixels on the horizontal axis of the analysis region R, and X _AVE represents n red The average value of the degree X _i is shown.

  FIG. 22 is a graph showing a time-series change of the mixed state for samples of six kinds of angle conditions (90 °, 75 °, 60 °, 45 °, 30 °, 15 °). The horizontal axis of the graph indicates the elapsed time (minutes), and the vertical axis [CV] of the graph indicates the coefficient of variation of the red degree (= the standard deviation σ of the degree of red divided by the average value). . The closer the value of the coefficient of variation [C.V.] is to 0, the greater the uniformity of the red distribution.

  From the graph shown in FIG. 22, it is estimated that the uniform distribution of red color does not progress even if sufficient time is spent under the condition that the angle θ formed by the revolution axis and the rotation axis is 45 ° or less. On the other hand, under the condition that the angle θ between the revolution axis and the rotation axis is 60 ° and 75 °, the red distribution is uniformed with the passage of time, but this requires a very long time. It is inferred. In this respect, when the angle θ between the revolution axis and the rotation axis is 90 °, the coefficient of variation [CV] is less than 0.1 in a short time of about 6 minutes, and the viscosity like paint It turns out that it has succeeded in mixing a high liquid uniformly in a short time.

<Example 2>
The washing apparatus of the third embodiment was tested according to the following procedure.
(Experimental device)
FIG. 23 shows an experimental apparatus 600 used for the experiment. In the experimental apparatus 600, the rotary blade A (diameter 80 mm) and the rotary blade B (diameter 80 mm) having a structure surrounded by a broken line are opposed to the inner peripheral surface of the cylindrical water tank 602 (inner diameter 153 mm, depth 264 mm). The cylindrical water tank 602 is fixed to the rotating base C.

(Laundry experiment)
A cotton cloth (80 mm x 80 mm) dipped in a stock solution of red paint in water for 5 minutes is put into a cylindrical water tank 602 (3 L of water, 7 g of detergent), and a 30s rotating blade under the following three washing conditions After rotating, the cloth was taken out and sufficiently dried.

(Example)
The rotating blade A and the rotating blade B are rotated in opposite directions, and the rotating base C is rotated at the same time.
(Comparative Example 1)
The rotary blade A and the rotary blade B are rotated in opposite directions, and the rotary base C is not rotated.
(Comparative Example 2)
The rotary blade A and the rotary blade B are rotated in the same direction, and at the same time, the rotary base C is rotated.

(Experimental result)
Images of the cloth washed under the above three conditions were captured by a scanner, and the R value of each image data was normalized in the range of 0.0 to 1.0. In normalization, the R value of the image data of the original cloth was set to 0, and the R value of the image data of the cloth that was dipped in the stock solution for 5 minutes and then dried without washing was set to 1. Then, based on the normalized R value, the cleaning rate (%) was obtained by the following formula (3).

  Table 1 below shows the washing rate (%) in each washing condition.

  As shown in Table 1 above, the cleaning rate of the example was 62%, indicating a high cleaning power.

DESCRIPTION OF SYMBOLS 10 ... Container 11 ... Rotation base 12 ... Base rotation means 13 ... Rotation power generation means 14 ... Support 15 ... Ball bearing 16 ... Coaxial double circular pipe 17 ... Coaxial double circular pipe 18 ... Pumping pump 19,20,21, 25 ... Piping 22,23 ... Rotating pipe joint 24 ... Piston 25,26 ... Electromagnetic valve 30 ... Screw 31,32,33,37 ... Piping 34,35,36 ... Electromagnetic valve 38,39,40 ... Electromagnetic valve 41,43 ... Piping 42 ... Rotating pipe joint 44 ... Electromagnetic valve 46 ... Air venting electromagnetic valve 50 ... Washing tub 51 ... Rotating base 52 ... Rotary blades 54,55 ... Piping 56 ... Rotating pipe joint 57 ... Electromagnetic valve 100 ... Mixing and stirring device 200 ... Mixing and stirring apparatus 300 ... mixing and stirring apparatus 400 ... washing apparatus 401 ... washing tub 402 ... rotating blades 404, 405, 409, 414 ... motors 406 and 407 ... Gears 408, 410, 412, 413 ... Pulley mechanism 420 ... Rotating base 500 ... Experimental apparatus 501 ... First motor 502 ... Circular base 503 ... Supporting column 504 ... Rectangular base 505 ... Second motor 506 ... Container holder 507 ... Digital video camera 510 ... Transparent container 600 ... Experimental apparatus 602 ... Cylindrical water tank

Claims (3)

A cylindrical container for containing the liquid material;
A rotating pedestal for rotatably supporting the cylindrical container;
A forced vortex generating means for rotating the cylindrical container about a cylindrical axis as a rotation axis, and generating a forced vortex for the liquid in the container;
Pedestal rotating means for rotating the rotating pedestal about a second axis orthogonal to the cylindrical axis as a rotation axis;
A mixing and stirring apparatus comprising:
A coaxial double circular pipe (16) having the second axis as an axis, and two second coaxial double circular pipes (17a) connected to two bottom surfaces of the cylindrical container and having the cylindrical axis as an axis. 17b), including a pressure pump,
A pipe (19) is connected to the upper part of the outer pipe of the coaxial double circular pipe (16) via the pressure pump, and a pipe ( 20a) and a pipe (20b) are connected to the outer pipe of the coaxial double circular pipe (17a) and the outer pipe of the coaxial double circular pipe (17b), respectively. The inner pipe of (17a) and the inner pipe of the coaxial double circular pipe (17b) are connected to the inner pipe of the coaxial double circular pipe (16) via a pipe (21a) and a pipe (21b), respectively. ,
The two coaxial double circular pipes (17a, 17b) are connected to the container via rotary fittings so that the container is rotatable about the cylindrical axis,
The coaxial double circular pipe (16) includes an upper part to which the pipe (19) is connected, the pipes (20a, 20b), and the pipe so that the container is rotatable about the second axis. The lower part to which the pipes (21a, 21b) are connected is connected via a rotary fitting,
Inside the container is provided with a disk-shaped piston configured to be movable in the longitudinal direction of the container,
Electromagnetic valves are provided in the pipes (21a, 21b) and the pipes (20a, 20b), and the opening and closing of the electromagnetic valves can be individually controlled.
Mixing and stirring device. A cylindrical container for containing the liquid material;
A rotating pedestal on which the cylindrical container is fixed;
A pressure-feed pump connected to each of one end and the other end of the cylindrical container via a pipe, and the liquid material is supplied from the pipe connected to the one end along the inner periphery of the container is introduced, include a pressure pump for recovering the liquid body from pipe connected to the other end, by via the piezoelectric pumped circulating the liquid body at a predetermined flow rate, the liquid in the container Free vortex generating means for generating a free vortex for the body,
Pedestal rotating means for rotating the rotating pedestal about a second axis orthogonal to the cylindrical axis as a rotation axis;
Mixing and stirring device. A cylindrical container for containing the liquid material;
A rotating pedestal on which the cylindrical container is fixed;
By introducing a liquid material from one end of the cylindrical container along the inner periphery of the container and collecting and circulating the liquid material from the other end, the liquid material in the container is free. Free vortex generating means for generating vortices;
A pedestal rotating means for rotating the rotary pedestal about a second axis orthogonal to the cylindrical axis as a rotation axis;
A mixing and stirring apparatus comprising:
A coaxial double circular pipe (16) having the second axis as an axis, and a pumping pump;
A pipe (19) is connected to the upper part of the outer pipe of the coaxial double circular pipe (16) via the pressure pump, and a pipe ( 32a) and piping (32b) are connected, each connected to both ends of the container,
A pipe (33a) is further connected to the lower part of the outer pipe of the coaxial double circular pipe (16), and the other end of the pipe (33a) is placed in the container along the inner periphery of the container. Connected to the outer peripheral surface of one end of the container so that a liquid can be introduced,
The inner pipe of the coaxial double circular pipe (16) is branched into a pipe (31a), a pipe (31b) and a pipe (33b), and the pipe (31a) and the pipe (31b) are respectively connected to the container. Connected to both ends, the pipe (33b) is connected to the outer peripheral surface of the other end of the container,
The coaxial double circular pipe (16) includes an upper part to which the pipe (19) is connected, and the pipes (31a, 31b, 32a) so that the container is rotatable about the second axis. , 32b, 33a, 33b) are connected to each other via a rotary fitting.
Inside the container is provided with a disk-shaped piston configured to be movable in the longitudinal direction of the container,
An inner pipe of the coaxial double circular pipe (16) is connected to a pipe (25), and the pipe (25) and the pipe (19) are bridged and connected by a pipe (37) on the downstream side of the pump. ,
The pipe (25) downstream from the connection point with the pipe (37), the pipe (19) downstream from the connection point with the pipe (37), and the pipes (31a, 31b, 32a, 32b, 33a) , 33b) are each provided with an electromagnetic valve, and are configured such that the opening and closing of each electromagnetic valve can be individually controlled.
Mixing and stirring device.