JP6219910B2 - Atomizer - Google Patents

Description

  The present invention relates to an atomization apparatus provided with a vertical bead mill capable of distributing beads more uniformly in a stirring chamber.

  When various raw material particles are atomized, the raw material is pulverized and dispersed using a high-pressure homogenizer, a wet jet mill, a bead mill, a ball mill, or the like. And the composite atomization apparatus which compounded the wet jet mill and the bead mill is also invented (refer patent document 1).

  As for the bead mill, both of those incorporated in the composite atomization apparatus and those of a single unit, for example, as shown in FIG. 7, a spherical bead B is introduced into the container 102 and a plurality of rotations whose planes are parallel to each other. By rotating the rotating shaft 109 provided with the blades 111 in the container, the mixed liquid containing the raw material particles together with the beads B is stirred by the rotation of the rotating blades 111. As the rotary blade 111, a disk-shaped one called a disk type, a pin-type one in which a plurality of pins protrude radially from the central axis, and the like are adopted.

  In this way, the mixed liquid flows from the inlet 104 provided on the lower side surface of the container 102 toward the outlet 106 provided on the upper side surface while being stirred. Therefore, in the container 102, the raw material particles that move between the beads B are sandwiched between the beads B in the mixed liquid that is stirred and flowed by the rotational force, and are pulverized by the crushing force and frictional force.

JP 2013-163162 A

  However, in the conventional vertical bead mill as described above, when the flow of the mixed liquid in the container is fast or the viscosity is high, especially when the bead diameter is small, it is difficult to settle due to the mass of the beads, and the There was a problem of being unevenly distributed in the upper part of the container. Due to such uneven distribution of beads, the beads and raw materials become overly dense and a region that impedes rotation of the stirring blade is generated. As a result, stirring cannot be performed in the container, and the atomization process may be stopped.

  For this reason, it is conceivable that the beads are relatively easily settled and distributed downward by slowing the flow rate or switching the beads to one having a larger diameter. However, in this method, there is a problem that the atomization processing amount is reduced, and when the target particle size is small, the atomization target is not achieved. On the other hand, when the viscosity of the mixed solution is low, the gravity of the beads is superior, and most of the beads settle downward, making it difficult to obtain a uniform distribution in the container.

  In addition, by tilting the bead mill container from the vertical direction together with the rotation axis, the raw material particles are somewhat less likely to collect below the container than when the rotation axis is installed along the vertical direction, and the local deviation of the beads is relatively small. It was possible, but that was not enough.

  Further, as shown in FIG. 7, the conventional vertical bead mill is provided with a mixed liquid inlet 104 at the lower side of the container and a discharge outlet 106 at the upper side, and a filter (105, 107) is provided at any opening. Is arranged. The processed mixed liquid is discharged with the beads 107 removed by the filter 107 on the discharge port 106 side. The container upper end 103 is provided with a shaft seal portion 108 that seals the rotating shaft 109 and the periphery of the bearing with the driving device 110.

  However, if the filter facing the discharge port becomes clogged, the pressure in the container will increase, and the shaft seal part may be damaged by contact with high-pressure applied beads or raw material particles. It was necessary to take measures to strengthen

  Thus, it is conceivable to use a so-called mechanical seal. However, since wear due to rotation increases, it is necessary to enlarge the drive system accordingly, and it is difficult to reduce the size of the apparatus. Further, since replacement of the mechanical seal requires a technique, it is not practical to use it in a bead mill. In order to maintain good agitation, an efficient means that can avoid shaft seal damage due to filter clogging has been desired.

  In view of the above problems, the object of the present invention is to constantly stir the beads and the raw material without changing the flow rate, flow rate or bead diameter appropriate for the stirring set according to the raw material particles and the mixed liquid containing the raw material particles. An object of the present invention is to provide an atomizing apparatus equipped with a bead mill. Another object of the present invention is to provide an atomizer equipped with a bead mill that is less likely to cause damage to the shaft seal portion of the bead mill than in the prior art and that can maintain better stirring.

In order to achieve the above object, the atomization apparatus according to the first aspect of the present invention is a stirring apparatus in which beads are accommodated and a mixed liquid containing raw material particles flows from one inlet side inlet to the other outlet side. A cylindrical container having a chamber therein, a rotating shaft disposed on the central axis of the container in the stirring chamber, and agitating beads and a mixed solution that are mounted at intervals along the rotating shaft A plurality of rotor blades, a driving device that communicates with the end of the rotating shaft that protrudes from the upper end of the container through the shaft seal portion, and rotates the rotating shaft, and the mixed solution and the beads after the stirring process are separated above the container. A bead mill that holds the container in a state inclined at a predetermined angle with respect to the vertical direction together with the rotating shaft, and a liquid mixture is accommodated. The raw material connected to the bead mill And a pump for feeding the mixed liquid to the bead mill, the plurality of rotating blades of the bead mill are mounted on the rotating shaft in such a manner that the arrangement of the number and interval can be changed and each can be replaced. One or more of the plurality of rotating blades of the bead mill has a propeller structure that forms a flow in one direction along the rotating shaft, and the rotating blade has the propeller structure as the rotating blade. In the state where the shaft is mounted, there is provided one that forms a stirring flow toward the upstream downstream side of the bead mill and one that forms a stirring flow toward the downstream upstream side of the bead mill .

According to a second aspect of the present invention, there is provided the atomization apparatus according to the first aspect , wherein the rotation axis having the propeller structure of the bead mill is used as a rotating blade having the propeller structure of the bead mill to the upstream side of the bead mill. What forms the stirring flow is mounted at least at the lowermost end of the rotating shaft.

The atomization device according to a third aspect of the present invention is the atomization device according to the first or second aspect , wherein the filter unit is coaxially mounted on the rotary shaft on the inner side of the stirring chamber from the upper end of the container. A cylindrical filter member that rotates with the rotation of the rotating shaft and passes the mixed liquid from which the beads have been removed to the discharge port side, and the discharge port has an upper end of the container that has passed through the cylindrical filter member. It is disposed further downstream than the shaft seal portion on the downstream side.

According to a fourth aspect of the present invention, there is provided the atomization apparatus according to the third aspect , wherein the drive device of the bead mill rotates the rotation shaft so that the rotation shaft can be switched between a forward direction and a reverse direction. It is.

  According to the atomization apparatus of the present invention, the arrangement configuration of the rotating blades of the bead mill can be appropriately changed, and one or more of the plurality of rotating blades forms a flow in one direction along the rotation axis. Therefore, even if there is a problem such as viscosity of the liquid mixture to be treated, the arrangement of the rotating blades can be changed without changing the flow rate and flow rate at the time of suitable stirring. It is possible to maintain a good atomization stirring process by controlling the flow of the liquid.

  Further, in the atomization apparatus of the present invention, the discharge port is disposed downstream of the upper end of the container and upstream of the shaft seal portion, and the cylindrical filter member is coaxially mounted on the rotating shaft on the inner side of the stirring chamber from the upper end of the container. By rotating the rotary shaft in accordance with the rotation of the rotating shaft, during the atomization stirring process, the clogging is reduced by shaking off the beads removed from the mixed solution from adhering to the filter member. It has the effect of being able to.

It is a schematic sectional side view which shows the whole structure of the vertical bead mill in one Example of this invention. It is a schematic perspective view of the container part which shows the decomposition | disassembly state at the time of changing the arrangement structure of the rotary blade of the vertical bead mill of FIG. It is a schematic diagram which shows two types of rotary blades with which the vertical bead mill 1 of FIG. 1 is mounted | worn, (a) is a perspective view of the state which looked at the rotary blade for upward flow generation from the downstream of the bead mill, (b) FIG. 3 is a perspective view of a state in which a rotary blade for generating a downward flow is viewed from the downstream side of the bead mill. It is a schematic diagram which shows the cylindrical filter member with which the vertical bead mill of FIG. 1 is mounted | worn, (a) The schematic perspective view seen from the upstream of a bead mill, (b) The schematic perspective view seen from the downstream, (c) FIG. It is a perspective view which shows the example of another rotary blade which can be mounted | worn with the vertical bead mill in the atomization apparatus of this invention. It is a schematic block diagram which shows the example of the whole structure of the atomization apparatus by this invention. It is a schematic sectional side view which shows an example of the conventional vertical bead mill.

  In the atomization apparatus of the present invention, a cylindrical container having a stirring chamber in which beads are contained and a mixed solution containing raw material particles flows from one end side inlet to the other outlet side is stirred. A plurality of rotating blades, which are arranged on the central axis of the container in the room and are used to stir the beads and the mixed solution, are inclined at a predetermined angle with respect to the vertical direction together with the rotating shafts mounted at intervals. The vertical bead mill is connected to the end protruding from the upper end of the container through the shaft seal part by the driving device, and the rotating shaft is rotated. The plurality of rotor blades are separated and passed to the discharge port side, and the plurality of rotor blades are attached to the rotor shaft so that the arrangement configuration of the number and interval can be changed and can be exchanged respectively. One of Above, in which it has a propeller structure forming a flow in one direction along the rotation axis.

  In the above configuration, in the atomization apparatus of the present invention, the arrangement configuration is changed by changing the number and interval of the replaceable rotor blades according to the viscosity of the mixed liquid stirred by the bead mill and the bead diameter. Therefore, it is possible to achieve good stirring without changing the stirring flow rate and flow rate determined by the rotation speed of the rotating shaft, while maintaining suitable conditions set for the raw material particles in the mixed liquid to be processed. The atomization process continues. The mixed liquid is introduced into the introduction port of the bead mill by a pump connected to the raw material tank that contains the mixed liquid. By configuring a circuit that returns the mixed liquid discharged from the discharge port of the bead mill to the raw material tank. Continuous atomization by bead mill can be performed.

  In the present invention, in particular, when one or more of the plurality of rotor blades has a propeller structure that forms a flow in one direction along the rotation axis, the rotation having the propeller structure is achieved. By selecting and controlling the arrangement configuration of multiple rotor blades including blades, it becomes easier to control the flow of the liquid mixture in the stirring chamber, reducing uneven distribution of beads and enabling a more uniform distribution, which is better than before A continuous stirring process can be maintained.

  There are two flow directions in the stirring chamber: a flow toward the upper downstream side of the container along the rotation axis and a flow toward the lower upstream side of the container. A good bead mill atomization performance can be obtained. Therefore, there are two types of rotor blades with a propeller structure for each direction, that is, the one that forms a stirring flow to the upstream and downstream sides of the bead mill when mounted on the rotating shaft, and the one that has a stirring flow to the downstream and upstream side of the beads mill. The configuration for preparing what is to be formed is used as a reference.

  Further, even with a kind of rotor blade, if the direction of rotation can be switched between forward and reverse, both upward and downward flows can be obtained. In this case, it is possible to form a flow in a desired direction even with an arrangement having only a rotor blade having a propeller structure that forms a flow in one direction.

  Each rotor blade attached to the rotating shaft of the bead mill has the same shape at the upper and lower ends of the cylindrical body through which the rotating shaft is inserted, so that it can Alternatively, it is possible to contact or connect with a spacer or an adapter for taking a predetermined interval.

  In the vertical bead mill, the liquid mixture and the beads tend to stagnate at the bottom of the container due to gravity.Therefore, among the plurality of rotor blades, at least at the lowest end of the rotation shaft, the beads mill is stirred upward and downstream. It is desirable to mount a rotor blade having a propeller structure that creates a flow. In addition, when the viscosity of the mixed liquid is high and the beads are likely to be unevenly distributed above the container, a rotating blade having a propeller structure that forms a stirring flow to the downstream upstream side is disposed at an upper position of the rotating shaft. , It is possible to eliminate the upward uneven distribution of beads.

  As described above, a uniform distribution of beads can be achieved by appropriately arranging the rotating blades for upward flow and the rotating blades for downward flow and controlling the flow of the mixed liquid in the stirring chamber. Moreover, although all the rotary blades attached to the bead mill can be only the rotary blades having such a propeller structure, different types of rotary blades can be mixed. For example, if a desired flow can be ensured by a partial arrangement of rotor blades having a propeller structure, for example, by arranging a rotor blade of a type that can exert a stronger stirring force as another rotor blade, Improvements can also be expected.

  Further, the exhaust port is disposed downstream of the upper end of the container and upstream of the shaft seal portion, and a cylindrical filter member is provided as a filter portion on the inner side of the agitation chamber from the upper end of the container. Since the mixed liquid from which the beads have been removed on the upstream side is led out to the discharge port side, the beads to which pressure is applied as in the conventional type and the raw material particles in the mixed liquid contact the shaft seal portion and cause damage. Nothing will happen. In the vertical bead mill, an air layer is present in the upper part downstream of the cylindrical filter member arranged in this way, and the shaft seal part does not come into contact with the mixed liquid and is hardly worn. . The cylindrical filter member is coaxially mounted on the rotation shaft, and is rotated with the rotation of the rotation shaft, so that the beads are less likely to adhere to the filter member, reducing clogging and maintaining good agitation. It becomes easy to do.

  Furthermore, by rotating the drive unit so that the rotation shaft can be selectively switched between the forward direction and the reverse direction, the cylindrical filter member is also rotated forward and reverse, and the beads adhered to the filter. Can be forcibly shaken off.

  The atomization apparatus of the present invention is of a composite type in which a vertical bead mill having the above-described configuration is connected to a raw material tank and a pump, each containing a mixed liquid, and a jet mill is connected in series or in parallel. An atomizer may be used.

  As an embodiment of the present invention, the configuration of a vertical bead mill according to the present invention is shown in FIGS. FIG. 1 is a schematic side sectional view showing the overall configuration of the vertical bead mill 1, and FIG. 2 is an outline of a container portion showing an exploded state when the arrangement configuration of the rotary blades of the vertical bead mill 1 in FIG. 1 is changed. It is a perspective view. FIG. 3 is a schematic view showing a rotor blade mounted on the vertical bead mill 1 of FIG. 1, and (a) is a perspective view of the rotor blade for generating an upward flow as viewed from the downstream side of the bead mill. ) Is a perspective view of a state in which the rotating blade for generating the downward flow is viewed from the downstream side of the bead mill. 4 is a schematic view showing a cylindrical filter member mounted on the vertical bead mill of FIG. 1, (a) a schematic perspective view seen from the upstream side of the bead mill, and (b) a schematic perspective view seen from the downstream side. (C) is a cross-sectional perspective view. FIG. 5 is a schematic perspective view showing an example of another rotating blade that can be mounted on the vertical bead mill of the present invention. FIG. 6 is a schematic configuration diagram showing an example of the overall configuration of the atomization apparatus according to the present invention.

  A vertical bead mill 1 according to this embodiment includes a cylindrical container 2 whose inside is a stirring chamber 3, a rotating shaft 9 disposed on the central axis of the container 2 in the stirring chamber, and a shaft seal portion 8 from the container upper end 6. A motor 10 is provided as a driving device that communicates with the upper end portion of the rotating shaft 9 protruding through the rotating shaft 9 and rotates the rotating shaft 9. A plurality of rotary blades 11 are mounted on the rotary shaft 9 in a replaceable manner.

  The shaft seal portion 8 can be configured by arranging various members conventionally used for sealing around the rotation axis. For example, a combination of an ultra-high molecular weight polyethylene resin (UHMW-PE) sealing material excellent in wear resistance, an O-ring, or the like is desirable.

  In the present embodiment, the rotating blade 11 attached to the rotating shaft 9 is provided with a plurality of two types of rotating blades having two types of propeller structures that respectively form a flow in two directions along the rotating shaft 9. By selecting arbitrarily from the seeds, 11a that generates a flow upward (downstream of the bead mill) and 11b that generates a flow downward (upstream of the bead mill) are arbitrarily selected Thus, it can be arranged and mounted on the rotary shaft 9.

  As shown in FIG. 3, the rotor blades 11 of any type (11a, 11b) have several blades (14a) having a predetermined propeller shape on the outer periphery of a cylindrical body 12 through which the rotating shaft 9 is inserted. , 14b) have a common basic configuration formed at equiangular intervals. The through-hole 13 formed in the main body 12 has a cross-sectional shape that fits with the rotary shaft 9, and the rotating blades (11 a, 11 b) are attached to the rotary shaft 9 in a mounted state by the insertion of the rotary shaft 9. Rotates with rotation. By making the two types of rotor blades (11a, 11b) and both end faces (12a, 12b) of the cylindrical main body 12 into the same shape, the end faces facing each other adjacent rotor blades 11 are arranged at any position. In either direction, a ring spacer having a fitting through hole that adjusts the interval between the rotor blades 11 or an adapter that can be fitted to both ends of the cylindrical body 12 is interposed. It can also be made.

  The plurality of rotor blades 11 are inserted through the rotating shaft 9 in a predetermined number and orientation, and through spacers and adapters as necessary, and the lower end of the rotating shaft 9 is finally attached to the washer. Then, by tightening with a fastening member 15 such as a nut, these rotary blades 11 are fixed and attached without being detached. The plurality of rotary blades 11 can be exchanged with respect to the rotary shaft 9 and the arrangement can be changed, and can be rearranged at the number, interval, and orientation set according to the desired stirring conditions.

  Therefore, by attaching at least the rotary blade 11a positioned at the lowermost end to the rotary shaft 9 in a state in which an upward flow is generated, the mixed liquid and the beads B that tend to stay on the lower end side of the container 2 due to gravity are moved upward and downstream. Can be flowed to. On the other hand, when the rotating blade 11b positioned at least at the uppermost end is attached to the rotating shaft 9 in a state of generating a downward flow, the viscosity of the mixed liquid is relatively high, and the beads B tend to be unevenly distributed above the container. However, the beads B that have come to the top of the container can flow downward. In this way, by appropriately selecting and arranging the rotor blades 11a that generate the upward flow and the rotor blades 11b that generate the downward flow, the beads B are more uniformly distributed in the atomization step, and good agitation is achieved. It can contribute to the continuation of processing.

  When changing the arrangement configuration of the rotor blades 11, as shown in FIG. 2, the container portion can be disassembled and reassembled in the reverse procedure again. Specifically, first, the ferrules (F4, F7) are removed from the upper and lower ends of the container 2, the container 2 is removed, the rotating shaft 9 in the stirring chamber 3 is exposed, and the fastening member 15 at the lower end of the rotating shaft is removed. In this case, the rotary blades 11 on the lower end side can be sequentially removed from the rotary shaft 9 and removed. Assembling is simply carried out in the reverse procedure in accordance with the arrangement configuration of the preset number, orientation and interval of the rotor blades 11.

  In this embodiment, the introduction port 4 for supplying the beads B into the container 2 and supplying the mixed liquid containing the raw material particles to the stirring chamber 3 is provided on the bottom end side of the container 2. Specifically, the introduction port 4 is configured by a through hole formed at the center of a ferrule F4 that closes the lower end opening of the cylindrical container 2 via a fixed screen filter 5. Further, the introduction port 4 may be formed on the lower side surface of the cylindrical container as in the conventional case.

  A cylindrical filter member 20 is disposed on the upper end 6 of the container 2 on the agitating chamber side. The cylindrical filter member 20 is mounted coaxially on the rotary shaft 9 and rotates as the rotary shaft 9 rotates. Further, a T-shaped ferrule F 7 that forms a discharge port 7 is connected to the upper end opening of the container 2. A shaft seal portion 8 is provided on the other end side of the ferrule F 7, and the mixed liquid after removal of the beads that has passed through the cylindrical filter member 20 from the stirring chamber 3 does not reach the shaft seal portion 8 and goes to the discharge port 7. Flowing.

  For example, as shown in FIG. 4, the cylindrical filter member 20 includes a through-hole formed at the center of each cap (22, 24) fixed to the upper and lower ends of a filter body 21 made of a cylindrical wedge wire screen. 23, 25) is fitted onto the rotary shaft 9. Each through-hole (23, 25) has a cross-sectional shape to be fitted with the rotary shaft 9, and when the rotary shaft 9 is in a through-mounted state, the upper and lower end caps (22, 24) are rotated as the rotary shaft 9 rotates. ) And the filter body 21 is rotated around its central axis. The mixed liquid that has flowed upward from the bottom of the container 2 while being agitated and atomized passes from the outer periphery of the filter main body 21 to the inside, is led out of the container from the mixed liquid flow path 26 of the upper end cap 24, and is discharged from the outlet 7. Sent to.

  In the above configuration, the cylindrical filter member 20 also rotates during the agitation process in the atomization process, so that the mixed liquid after each main atomization process is allowed to pass and the beads B are removed while trying to adhere to the filter. Beads B can be shaken off. Thereby, the filter member 20 becomes difficult to clog.

  The cylindrical filter member 20 is appropriately selected to have a mesh size corresponding to the bead diameter used in the atomization stirring process, and is attached to the rotating shaft 9. The cylindrical filter member 20 can also be removed by a procedure substantially similar to the procedure for changing the arrangement of the rotary blades 11 described above, and after removing all the rotary blades 11, the cylindrical filter member 20 is removed from the rotary shaft 9 and is replaced with another new cylindrical shape. The filter member 20 can be exchanged.

  Next, FIG. 6 shows an example in which the atomizing apparatus is configured by connecting the raw material tank and the pump in the basic configuration of the vertical bead mill described above. In the structure of the atomization apparatus shown in FIG. 6, the vertical bead mill 1b has the same basic structure as that of the vertical bead mill 1 in FIG. 1, and the introduction port 4b is provided on the lower side surface of the container. 10 degrees (80 degrees from the horizontal direction).

  A raw material tank T containing a mixed liquid containing raw material particles is connected to the inlet 4 b of the bead mill 1 through a pump P and a heat exchanger H, and the outlet 7 is connected to the raw material tank T. Therefore, the mixed liquid introduced from the inlet 4b flows upward while being stirred in the stirring chamber 3, and returns to the raw material tank T from the outlet 7 with the beads B removed by the cylindrical filter member 20. Then, after being cooled again by the pump P via the heat exchanger H, it is sent to the bead mill 1b. Continuous processing is repeatedly performed while repeating such circulation.

  In the atomization apparatus shown in FIG. 6, the arrangement pattern of the rotor blades shown in FIG. 1, that is, one rotor blade 11a that forms an upward flow from the lowermost end and the other six upper blades that flow downward. In the arrangement of the rotating blades 11b to be formed, when the bead B was unevenly distributed upward in the conventional bead mill, stirring was performed under the same conditions for the relatively viscous mixed solution. The uneven distribution was eliminated, and it was confirmed that the distribution was uniform throughout.

  As described above, even under the same conditions, a uniform distribution of the beads B can be obtained by mounting the rotor blades having a propeller structure in a predetermined arrangement pattern, thereby making it possible to maintain a good stirring process. Therefore, according to the atomization apparatus equipped with the bead mill of the present invention, it is not necessary to change the flow rate and the flow rate of the suitable stirring, which had to be performed conventionally, due to problems such as the viscosity of the target processing liquid mixture. High atomization performance can be realized by changing the selection and arrangement of the rotor blades.

  In the atomization apparatus of the present invention, the rotor blades 11 attached to the bead mill do not necessarily have to have a propeller structure as described above. Can be installed together. For example, a type capable of generating a stronger stirring force than the formation of a flow can be ensured by a rotor blade (11a, 11b) having a propeller structure partially disposed above and below the rotating shaft 9. For example, if it is mounted as a rotary blade 11 disposed in the other central region, in addition to a uniform distribution of beads B, an improvement in atomization performance can be expected due to an improvement in pulverization force due to a strong mixed liquid stirring force. . In addition, it is also possible to adjust the stirring force by mixing a rotor blade having a relatively gentle stirring force, for example, a disk-type rotating blade 16 with protrusions 17 as shown in FIG.

1, 1b, 101: Vertical bead mill 2, 102: Container 3: Stirring chamber 4, 4b, 104: Inlet 5, 105, 107: Filter 6, 103: Container upper end 7, 106: Discharge port 8, 108: Shaft Seal portion 9, 109: Rotating shaft F4, F7: Ferrule 10, 110: Motor (drive device)
11: Rotating blade 11a: Rotating blade 11b having a propeller structure that generates an upward flow 11b: Rotating blade 12 having a propeller structure that generates a downward flow 12: Cylindrical main bodies 12a and 12b of the rotating blade 13: (Rotation) Through-holes 14a, 14b: blades 15, 115: fastening member 16: disk-type rotary blade 17: protrusion 20: cylindrical filter member 21: filter body 22: lower end cap 24: upper end caps 23, 25: (upper and lower ends) Through hole 26 of cap: liquid mixture flow path 111: rotor blade T: tank P: diaphragm pump H: heat exchanger B: beads

Claims (4)

A cylindrical container having a stirring chamber in which beads are contained and a mixed liquid containing raw material particles flows from one end side introduction port to the other end discharge port side, and is arranged on the central axis of the container in the stirring chamber Rotating shaft, a plurality of rotating blades for agitating beads and a mixed solution that are mounted at intervals along the rotating shaft, and an end of the rotating shaft that protrudes from the upper end of the container through the shaft seal portion And a drive unit that rotates the rotating shaft and a filter unit that separates the mixed liquid and the beads after the stirring process above the container and allows the mixed liquid to pass to the discharge port side, and rotates the container A bead mill that is held at a predetermined angle with respect to the vertical direction along with the shaft; a raw material tank that contains the mixed liquid and is connected to the bead mill; and a pump that sends the mixed liquid to the bead mill. Having atomization equipment Stomach,
The plurality of rotary blades of the bead mill are attached to the rotary shaft in such a manner that the arrangement configuration of the number and interval can be changed and can be exchanged respectively.
One or more of the plurality of rotating blades of the bead mill have a propeller structure that forms a flow in one direction along the rotation axis ;
As the rotor blade having the propeller structure, a blade that forms an agitating flow to the upstream downstream side of the bead mill while the rotating shaft is mounted and a blade that forms an agitating flow to the downstream upstream side of the bead mill are provided. An atomizing device characterized by the above. A rotating blade having a propeller structure of the bead mill, which forms an agitating flow upward and downstream of the bead mill in a mounted state of the rotating shaft, is mounted at least at the lowermost end of the rotating shaft. The atomization apparatus according to claim 1 . The filter unit is coaxially mounted on the rotating shaft on the inner side of the stirring chamber from the upper end of the container and rotates with the rotation of the rotating shaft, and passes through the mixed liquid from which the beads have been removed to the discharge port side. A filter member,
The atomization device according to claim 1 or 2 , wherein the discharge port is disposed downstream from an upper end of the container that has passed through the cylindrical filter member and upstream from the shaft seal portion. . The atomizing device according to claim 3 , wherein the driving device of the bead mill is configured to rotationally drive the rotating shaft so as to be switched between a forward direction and a reverse direction.

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