JP5773683B2 - Vibration agitator - Google Patents

Description

  The present invention relates to a vibration stirrer, and more particularly to a vibration stirrer that uniformly stirs and mixes liquids or powders or promotes a uniform polymerization reaction.

  When adding and mixing liquid to powder, when adding and mixing powder to liquid, or when adding and mixing powder and liquid simultaneously, secondary agglomerates of powder in the liquid A technique has been devised in which powder is dispersed in a liquid so as to prevent generation of water. In addition, a technique for producing a uniform polymer by promoting a liquid polymerization reaction has been devised.

  Patent Document 1 discloses a stirring and mixing device and a stirring and mixing method. Here, it is described that one or more holes are provided in a partition plate of a flow passage provided inside a casing through which a fluid flows (see FIGS. 7 and 8). With this hole, the degree of stirring in the stirring chamber formed between the partition plates can be made different from that of other stirring chambers. Furthermore, it is described that the stirring blade is provided with one or more holes. By this hole, the stirring degree in the stirring chamber located in the vibration possible range of the portion where the hole is formed in the stirring blade can be made different from other stirring chambers.

  Patent Document 2 discloses a stirring polymerization apparatus and a polymerization method capable of efficiently producing a polymer having a narrow molecular weight distribution or a low molecular weight. Here, a flow hole through which a fluid flows is formed in a partition plate that partitions the conduit in multiple stages. Then, the stirring body is fibrillated in a predetermined mode in the conduit, and the polymerization solution is stirred by repeating the dispersion and merging of the fluid flow by the stirring blades and the vibration of the fluid by the fibrillation of the stirring blades, thereby promoting the polymerization reaction. It is described.

Japanese Patent No. 4366124 Japanese Patent No. 4278245

  However, the conventional vibration stirring device and the stirring and mixing method do not have sufficient ability to uniformly stir and mix the liquid, powder, or polymerization solution, and the desired stirring and mixing effect cannot be obtained or the stirring time is too long. There was a problem of being uneconomical.

  Moreover, there existed a problem that the combination of the powder and liquid which can be mixed, or the kind of polymerization solution was limited by the limit of the said stirring and mixing ability. Further, there has been a demand for improving the stirring and mixing ability and shortening the time required for stirring and mixing or stirring polymerization.

  The purpose of the present application is to solve this problem and generate vortex or turbulence in the internal liquid or powder or polymerization solution by vibration of the stirrer, which enables stirring mixing or stirring polymerization with high stirring efficiency. Is to provide a device.

In order to achieve the above object, a vibration stirring apparatus according to the present invention has a liquid or powder to be stirred or a solution inlet and outlet and a cylinder through which the liquid or powder or solution flows. And a first spiral blade that is fixed to the wall in a spiral shape and protrudes toward the inside, and is provided in the conduit and supported so as to vibrate in the axial direction of the conduit. A stirring body comprising a shaft portion, a second spiral blade fixed to the shaft portion in a spiral shape and protruding outward, and a stirring body coupled to one end of the stirring body to vibrate the stirring body in the axial direction The first spiral blade and the second spiral blade are continuous so as to draw the same spiral while maintaining a constant interval, and form a double spiral along the radial direction of the conduit. At the inner end of one spiral blade, there is an opening or a cutout through which liquid, powder, or solution can flow. An opening or notch through which the liquid or powder or solution can flow is provided at the outer end of the second spiral blade, and the opening or notch of the first spiral blade The second spiral blade has an opening portion or a cut portion that is not overlapped and installed.

  With the above configuration, in the vibration agitation apparatus, the first spiral blade and the second spiral blade form a double spiral inside the conduit through which liquid, powder, or solution flows. That is, the partition plate which has conventionally partitioned the flow path through which the liquid, powder, or solution flows is improved to be a spiral blade, and arranged so as to form a stirring blade and a double spiral. And an opening part or a notch | incision part is provided in the inner edge part of a 1st spiral blade, and the outer edge part of a 2nd spiral blade, Comprising: The position which is not mutually overlaid. By vibrating the stirring body with this configuration, the liquid, powder, or solution flowing through the inside of the conduit can be the stationary first spiral blade opening or notch, and the vibrating second spiral blade opening. Alternatively, a complicated vortex or turbulent flow generated around the cut portion enables agitation mixing or agitation polymerization with high agitation efficiency. Hereinafter, this stirring mixing or stirring polymerization is referred to as “stirring method in the first vibration mode”.

  In addition, the vibration agitation device includes a connecting part that fixes a part of the shaft part to the wall part, and the stirring body and the conduit are synchronized with each other by fixing a part of the shaft part to the wall part by the connecting part. It is preferable to vibrate. Thereby, both the stirring body and the conduit vibrate at the same time, and the liquid or powder or solution flowing through the conduit vibrates together. Stirring mixing or stirring polymerization with high stirring efficiency becomes possible by the complicated vortex flow or turbulent flow generated around the opening or notch portion. Hereinafter, this stirring mixing or stirring polymerization is referred to as “stirring method in the second vibration mode”.

  In addition, it is preferable that the vibration stirring device further includes a conduit vibration source that vibrates the conduit in the axial direction, and the stirrer and the conduit are vibrated independently of each other by connecting the conduit vibration source to the conduit. Thus, the opening or notch of the first spiral blade in which the stirring body and the conduit vibrate independently and the liquid, powder, or solution flowing through the conduit vibrates at different frequencies or amplitudes. , And a complicated vortex or turbulent flow generated around the opening or notch of the second spiral blade enables stirring and mixing or stirring polymerization with high stirring efficiency. Hereinafter, this stirring mixing or stirring polymerization is referred to as “stirring method in the third vibration mode”.

  Further, the vibration agitator is provided with a jacket on the outer periphery of the wall of the conduit, and a flow passage capable of cooling or heating the liquid, powder, or solution is formed, or in the cross section of the first spiral blade. It is preferable that a flow path capable of cooling or heating the liquid or powder or the solution is formed. Thereby, appropriate temperature setting can be performed according to the polymerization conditions of the polymerization reaction.

  As described above, according to the vibration stirring apparatus according to the present invention, vortex or turbulence is generated in the internal liquid or powder or polymerization solution by the vibration of the stirring body, and stirring mixing or stirring polymerization with high stirring efficiency is performed. It is possible to provide a vibration agitating device that enables this.

It is sectional drawing which shows schematic structure of one Embodiment of the vibration stirring apparatus which concerns on this invention. It is AA sectional drawing of FIG. 1 which shows the structure of the double helix by a 1st spiral blade and a 2nd spiral blade. It is detail sectional drawing which shows the Example of the opening part provided in a 1st spiral blade and a 2nd spiral blade. It is detail sectional drawing which shows the Example of the notch part provided in a 1st spiral blade and a 2nd spiral blade. It is sectional drawing which shows one Example of the heating-cooling method of the solution provided in the outer periphery of the wall part of a conduit | pipe. It is sectional drawing which shows one Example of the heating-cooling method of the solution provided in the cross section of a 1st spiral blade.

(Configuration of vibration agitator)
Hereinafter, embodiments of the vibration agitator according to the present invention will be described in detail with reference to the drawings. In FIG. 1, schematic structure of one embodiment of the vibration stirring apparatus 1 which concerns on this invention is shown. The vibration stirring device 1 includes a conduit 2, a stirring body 3, and a stirring body vibration source 4. The conduit 2 includes a cylindrical wall portion 5 through which a liquid or powder or a polymerization solution flows, and a first spiral blade 6 that is fixed to the wall portion 5 in a spiral shape and protrudes toward the inside. Hereafter, “liquid or powder, or polymerization solution” that is stirred through the inside of the conduit 2 will be collectively referred to as “solution or the like”. The stirrer 3 is provided in the conduit 2, and is supported by a shaft 7 that can vibrate in the axial direction of the conduit 2, and a second spiral blade 8 that is fixed to the shaft 5 in a spiral shape and protrudes outward. Consists of. The conduit 2 has an inlet 10 and an outlet 11 for the solution to be stirred. The stirring body vibration source 4 is connected to one end of the stirring body 3 to vibrate the stirring body 3 in the axial direction. Here, the axial direction refers to the axial direction of the shaft portion 5 of the stirring body 3.

  In FIG. 2, the structure of the double helix by the 1st spiral blade 6 and the 2nd spiral blade 8 is shown. The first spiral blade 6 and the second spiral blade 8 form a double helix along the radial direction of the conduit 2. Here, the “spiral along the radial direction of the conduit 2” means a line that has a constant radius and spirally continues on the outer periphery of the conduit 2 as shown in FIGS. 1 and 4. A spiral blade formed to connect the center line. And the 1st spiral blade 6 and the 2nd spiral blade 8 continue so that the same spiral may be drawn, maintaining a fixed space | interval. That is, a partition plate that has conventionally partitioned a flow passage through which a solution or the like circulates is improved to be a spiral blade, and is arranged so as to form a double spiral with a stirring blade.

  In FIG. 3, the Example of the opening part provided in the 1st spiral blade 6 and the 2nd spiral blade 8 is shown. FIG. 4 shows an embodiment of the cut portions 17 and 18 provided in the first spiral blade 6 and the second spiral blade 8. A first opening 15 or a notch 17 through which a solution or the like can flow is provided at the inner end of the first spiral blade 6, and a second or the like through which the solution or the like can flow is provided at the outer end of the second spiral blade 8. Two openings 16 or notches 18 are provided, and the first opening 15 or notches 17 of the first spiral blade 6 and the second openings 16 or notches 18 of the second spiral blade 8 are overlapped and installed. Not.

  In FIGS. 3 and 4, the first opening 15 and the second opening 16 are circular holes, but are not limited thereto, and may be other shapes such as a triangle and a quadrangle. The first opening 15 and the second opening 16 are provided at the inner end of the first spiral blade 6 and the outer end of the second spiral blade 8, respectively. It may be provided at the outer end of the first spiral blade 6 and the inner end of the second spiral blade 8, and the first opening 15 of the first spiral blade 6 and the second opening of the second spiral blade 8. No. 16 is overlapped and not installed.

  In FIGS. 3 and 4, the incisions 17 and 18 are oval incisions, but are not limited thereto, and may be other incisions such as a triangle and a quadrangle. In addition, the notches 17 and 18 are provided at the inner end of the first spiral blade 6 and the outer end of the second spiral blade 8, respectively. It may be provided at the outer end portion and the inner end portion of the second spiral blade 8, and the cut portion 17 of the first spiral blade 6 and the cut portion 18 of the second spiral blade 8 may not be overlapped and installed. It becomes a condition.

(Vibration mode of stirring mixing or stirring polymerization)
A stirring method in three vibration modes of stirring and mixing or stirring polymerization will be described with reference to FIGS. The stirring method in the first vibration mode is a mode in which the conduit 2 is fixed and only the stirring body 3 is vibrated by the stirring body vibration source 4. Thereby, the axial vibration (Z1) of the conduit 2 shown in FIG. 2 becomes zero, and the axial vibration (Z2) of the stirring member 3 is generated in a state where the conduit 2 is stationary. In this vibration mode, the solution flowing through the inside of the conduit 2 causes the first opening 15 or the first notch 17 of the stationary first spiral blade 6 and the second opening 16 or the second notch 17 of the vibrating second spiral blade 8 to move. The complicated vortex flow or turbulent flow generated around the two cut portions 18 enables stirring mixing or stirring polymerization with high stirring efficiency. That is, the solution sandwiched between the stationary first spiral blade 6 and the second spiral blade 8 is restrained or stretched by the second spiral blades 8 and 8 'moving up and down, and the first opening 15 or the second It passes through the opening 16. The first opening 15 and the second opening 16 are not in a superimposed position. Accordingly, the solution is stirred and mixed or polymerized as a complicated vortex or turbulent flow when being restrained or stretched by the second spiral blades 8 and 8 'moving up and down.

  The stirring method in the second vibration mode is a mode in which the conduit 2 and the stirring body 3 are vibrated in synchronization with each other. That is, by fastening the connecting bolt 21 of the connecting portion 9 shown in FIG. 1, the shaft portion 7 is fixed to the wall portion 5, and the conduit 2 vibrates in synchronism with the stirring body 3 that is vibrated by the stirring body vibration source 4. . Thereby, the axial vibration (Z1) of the conduit 2 shown in FIG. 2 and the axial vibration (Z2) of the stirring body 3 synchronized with the axial vibration (Z1) are generated. Due to this vibration mode, the solution sandwiched between the first opening 15 or the first cut portion 17 of the first spiral blade 6 and the second opening 16 or the second cut portion 18 of the second spiral blade 8 is In addition, a complicated vortex or turbulent flow enables stirring and mixing or stirring polymerization with high stirring efficiency. That is, the solution sandwiched between the first spiral blade 6 and the second spiral blade 8 is subjected to inertial force by the first spiral blade 6 and the second spiral blade 8 moving up and down, and the first opening 15 or the second spiral blade 8 is moved. It passes through the opening 16. The first opening 15 and the second opening 16 are not in a superimposed position. Therefore, the solution becomes a complicated vortex or turbulent flow when passing through the first opening 15 or the second opening 16 by the first spiral blade 6 and the second spiral blade 8 that move up and down, and stirring and mixing or stirring polymerization. Is done.

  As shown in FIG. 1, the stirring method in the third vibration mode includes a stirring body 3 connected to the stirring body vibration source 4 by connecting a conduit vibration source 12 that vibrates the conduit 2 in the axial direction to the conduit 2. In this mode, the conduit 2 connected to the conduit vibration source 12 is vibrated independently of each other. Thereby, the axial vibration (Z1) of the conduit 2 and the axial vibration (Z2) of the stirring body 3 shown in FIG. 2 are generated independently. Due to this vibration mode, the solution sandwiched between the first opening 15 or the first cut portion 17 of the first spiral blade 6 and the second opening 16 or the second cut portion 18 of the second spiral blade 8 is In addition, a complicated vortex or turbulent flow enables stirring and mixing or stirring polymerization with high stirring efficiency.

(Stirring mixing or heating / cooling of stirring polymerization)
FIG. 5 shows an embodiment of the heating and cooling method provided on the outer periphery of the wall portion 5 of the conduit 2. A jacket 13 is provided on the outer periphery of the wall portion 5 of the conduit 2, and a flow passage 14 a capable of cooling or heating the solution is formed in the jacket 13. And although the fluid inflow / outflow port 19 of the fluid which distribute | circulates the flow path 14a is provided, you may provide the inflow port and outflow port of a fluid, respectively. As described above, by providing the jacket 13 and the flow passage 14a capable of cooling or heating the solution, an appropriate temperature can be set according to the polymerization conditions of the polymerization reaction. For example, anionic polymerization and cationic polymerization are usually performed at a low temperature in consideration of a chain reaction. On the other hand, in the case of radical polymerization, emulsion polymerization, etc., it is necessary to increase the temperature when the initiation of polymerization is promoted, and to lower the polymerization temperature when the polymerization proceeds to the chain reaction and when the chain reaction is terminated. is there.

  FIG. 6 shows one embodiment of the heating and cooling method provided in the cross section of the first spiral blade 6. In the cross section of the first spiral blade 6, a flow path 14b capable of cooling or heating the liquid or powder is formed. And although the fluid inflow / outflow port 20 of the fluid which distribute | circulates the flow path 14b is provided, you may provide the inflow port and outflow port of a fluid, respectively. The flow passage 14b provided in the cross section of the first spiral blade 6 has simple details as compared with the flow passage 14a shown in FIG. 5, and the first spiral blade 6 and the second spiral blade 8 in which agitation polymerization is performed. Is closer.

DESCRIPTION OF SYMBOLS 1 Vibration stirring apparatus, 2 Conduit, 3 Stirring body, 4 Stirring body vibration source, 5 Wall part, 6 1st spiral blade, 7 Shaft part, 8,8 '2nd spiral blade, 9 Connection part, 10 Inflow port, 11 Outlet, 12 Conduit vibration source, 13 Jacket, 14a, 14b Flow path, 15 First opening, 16 Second opening, 17 First notch, 18 Second notch, 19, 20 Fluid outflow inlet, 21 Connection bolt.

Claims (4)

A cylindrical wall having a liquid or powder to be agitated and a solution inlet and outlet, and a liquid, powder, or solution flowing therethrough, and a spiral fixed to the wall. A first spiral blade projecting toward the tube, a shaft provided in the conduit and supported so as to vibrate in the axial direction of the conduit, and fixed to the shaft in a spiral manner toward the outside. A second spiral blade projecting from the first stirring blade, and a stirring body vibration source coupled to one end of the stirring body to vibrate the stirring body in the axial direction, the first spiral blade and the second spiral blade The spiral blades are continuous so as to draw the same spiral while maintaining a constant interval, forming a double spiral along the radial direction of the conduit, and at the inner end of the first spiral blade, a liquid or powder, Alternatively, an opening or a notch through which the solution can flow is provided, and a liquid is provided at the outer end of the second spiral blade. Is provided with an opening or notch through which the powder or solution can flow, and the opening or notch of the first spiral blade and the opening or notch of the second spiral blade are not overlapped and installed. A vibration agitation device characterized by that. It is a vibration stirring apparatus of Claim 1, Comprising: It has a connection part which fixes a part of shaft part to a wall part, and a stirring body and a conduit | pipe are provided by fixing a part of shaft part to a wall part by a connection part. And a vibration agitation device characterized by being vibrated in synchronization with each other. 2. The vibration agitation apparatus according to claim 1, further comprising a conduit vibration source that vibrates the conduit in an axial direction, and the agitator and the conduit are vibrated independently of each other by connecting the conduit vibration source to the conduit. A vibration stirrer characterized in that 4. The vibration agitating device according to claim 1, wherein a jacket is provided on an outer periphery of a wall portion of the conduit to form a flow path capable of cooling or heating the liquid, the powder, or the solution. Or a flow passage capable of cooling or heating a liquid, powder, or solution in the cross section of the first spiral blade.

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