JP3010213U - Mixing equipment for high viscosity materials - Google Patents

Abstract

(57) [Summary] [Structure] A case 2 having an inlet 10 and an outlet 11 near both ends, lids 3 and 4 for closing both ends of the case, a shaft 5 supported by these lids, and a shaft rotating. The shaft 5 is provided with a stirring blade 12 and a partition wall 13 for partitioning the interior of the case 2 into a compartment 16. A large number of holes are formed in the partition wall 13 and a large number of holes are provided in each space 16. Configuration of mixing device A in which beads 17 are housed. [Effect] It is possible to efficiently stir and mix a liquid having a high viscosity such as a two-pack type epoxy resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mixing device for high viscosity materials. More specifically, it relates to a small, portable mixing device for mixing two-part epoxy resin at the construction site.

[0002]

[Prior art]

 Conventionally, in order to increase the weight of a vehicle passing through an existing steel frame bridge or to increase the durability, it is necessary to fill a curable resin with a reinforcing material or to attach a reinforcing material such as a curable resin. Is being done. A two-part epoxy resin is usually used in such work, but this compound cannot be pre-mixed because the curing proceeds immediately after the two parts are mixed, and in the past it was not possible. The two liquids are put in a container each time they are used, mixed manually and used up on the spot. As a device for mixing high-viscosity fluids, a static mixer is used in which a high-viscosity liquid is passed through a cylindrical body containing a large number of non-rotating blade-shaped mixing elements, and the mixing elements perform division / conversion / reverse action. It has been known.

[0003]

[Problems to be solved by the device]

 In the conventional manual mixing, since the two liquids to be mixed with the epoxy resin have high viscosity, they may not be sufficiently mixed and the required strength may not be obtained. Also, when a large amount of resin is required, the mixed state tends to be uneven, and work efficiency is low. On the other hand, static mixers are very difficult and at the same time expensive to clean the mixing elements. The technical idea of this proposal is to provide a device capable of easily and efficiently mixing a plurality of types of highly viscous liquids such as a two-liquid type epoxy resin at a construction site. Another object of the present invention is to provide a mixing device that can be easily washed after use and can be manufactured at a relatively low cost.

[0004]

Means for Solving the Problems A mixing device of the present invention comprises a cylindrical case having an inlet on one side wall and an outlet on the other side wall, and an opening at both ends of the case. Each of them has a closing lid, a shaft that is concentrically housed in the case and is rotatably supported by the lid, a stirring blade that is fixed on the shaft at a distance, and a stirring blade that is fixed on the shaft. A plurality of partition walls, which are arranged at intervals and are fixed, and which partition the inside of the case, and are contained in a space between the partition walls in a freely moving state and are not affected by liquids to be mixed It is composed of a large number of beads and a drive mechanism that drives the shaft to rotate, and a large number of holes formed in the partition wall and / or gaps between the partition wall and the case are dimensioned to allow liquid to pass but not beads. It is characterized by

In such a device, the partition wall may have a disc shape or a conical shape protruding toward the downstream side. Further, it is preferable that the case, the lid and the shaft are constructed so as to be easily disassembled.

[0006]

[Action]

 When the two liquids to be mixed are supplied into the case from the inlet while the shaft is rotated by the drive mechanism, the two liquids are mixed by the stirring blades and the holes formed in the partition wall itself, or the partition wall and the case are sequentially formed. It passes through the gap and flows downstream. At that time, many beads in the space between each partition do not flow downstream and are confined in that space. Then, the beads roll with the liquid in the case, and the liquids are sufficiently mixed and stirred by a complicated movement. Then, only the mixed liquid flows through the partition wall to the downstream side, and finally exits from the outlet. Thus, the liquid mixing operation is continuously and efficiently performed. When the mixing is complete, wash the parts by passing the solvent through the case or disassembling the case and shaft. The beads may be washed, but are usually discarded as they are.

When the partition wall has a conical shape projecting toward the downstream side, the beads are held not only on the inner surface of the case but also in the conical partition wall to perform more thorough mixing and stirring. . When the case and the shaft are configured to be easily disassembled, the epoxy resin and the like inside can be cleaned immediately after use by disassembling.

[0008]

【Example】

 Next, the mixing device of the present invention will be described with reference to the drawings. 1 is a sectional view showing an embodiment of the device of the present invention, FIG. 2 is a plan view of the device of FIG. 1, FIG. 3 is a sectional view taken along line III--III of FIG. 2, and FIG. FIG. 5 is a sectional view showing another embodiment of the present invention, and FIG. 5 is a front view showing another embodiment of beads related to the present invention.

A mixing apparatus A shown in FIG. 1 includes a frame 1, a cylindrical case 2 supported by the frame, lids 3 and 4 closing both end openings of the case, and the lids 3 and 4. Has a shaft 5 rotatably supported near both ends thereof, and a motor with a speed reducer (see FIG. 2) M for rotationally driving the shaft 5. As shown in FIG. 2, pulleys 7 and 8 are fixed to the end of the shaft 5 and the output shaft 6 of the motor M, and a belt 9 is hung on these pulleys. A cylindrical inlet 10 extending upward from the side wall of the case is provided near one end of the case 2, and a cylindrical outlet 11 extending downward is provided near the other end. The cylindrical body 11a extending upward on the outlet side is for bleeding air that enters at the start.

Around the shaft 5, a plurality of stirring blades 12 are provided at intervals, and the space inside the case 2 is partitioned in the axial direction between the stirring blades 12. A partition wall 13 is provided for this purpose. As shown in FIG. 3, a large number of holes 14 are formed in each partition wall 13, and a slight gap 15 is formed between the inner surface of the case 2 and the periphery of the partition wall 13. A large number of beads 17 having a size that does not pass through the holes 14 and the gaps 15 are housed in a chamber 16 partitioned by each partition wall 13 in the case 2.

The case 2 is usually a small case having an inner diameter of 50 to 150 mm and a length of about 500 to 1500 mm, but may be larger or smaller. The case 2 and the lids 3 and 4 can be made of metal such as iron, but the remaining contents can be easily seen in order to sufficiently monitor the mixed state inside the case 2 or when cleaning. In order to do so, the case 2 may be formed of a transparent synthetic resin or the like. The shaft 5, the stirring blade 12 and the partition wall 13 can be formed of a metal such as iron. The beads 17 may be made of metal, synthetic resin, glass, etc., but are made of synthetic resin, especially hard vinyl chloride beads, which are inexpensive and are not affected by the liquid to be mixed so that they can be disposable. It is preferable to adopt the one of Further, the specific gravity of the beads 17 is not particularly limited, but it is preferable that the specific gravity of the beads 17 is the same as or slightly heavier than the liquid to be mixed. The size of the bead 17 varies depending on the kind of liquid to be mixed and the size of the case 2, but usually the diameter is about 3 to 10 mm, particularly preferably about 5 to 7 mm. It should be noted that 2-3 types of beads having different sizes or more beads may be used together, and in this case, there is an advantage that they are further mixed. It is also possible to use beads with different specific gravities together, which has the advantage that the beads are averaged in the cylinder.

To accommodate the beads 17 between the partition walls 13, when the shaft 5 is inserted into the case 2, the shaft 5 is inserted to some extent so that the space 16 between the partition walls 13 is positioned below the inlet 10. In this state, a proper amount of beads 17 may be poured, the shaft 5 may be further inserted, and the beads 17 may be similarly poured into the next space 16. The filling amount of the beads 17 is preferably 10 to 90%, particularly about 40 to 70% of the space 16.

The mixing device A configured as described above is used as follows. First, as shown by an imaginary line in FIG. 1, a hose 18 or a pipe is connected to the inlet 10 and two hoses 20 and 21 are connected via a branch pipe 19, and each hose 20, while rotating the motor M, A liquid having a high viscosity such as each liquid of a two-liquid mixing type epoxy resin is poured into 21. Then, the two liquids enter the case 2 through the inlet 10 and are mixed by the stirring blade 12 rotating with the shaft 5. At that time, the liquid rotates in the case 2 in a state of being mixed with the beads 17, but a large number of beads 17 move irregularly, and the liquid adheres to the surfaces of the beads 17 by viscous friction and does not rotate. They are mixed well. Then, the mixed liquid moves into the space 16 on the downstream side through the hole 14 of the partition wall 13 and the gap 15 between the partition wall 13 and the case 2, and is further sufficiently mixed therein. Since the beads 17 cannot pass through the holes 14 and the gaps 15, they remain in the original space 16. In this way, the two liquids are sufficiently agitated and mixed as they proceed to the downstream side, and the uniformly mixed liquid flows out from the outlet 11. Thus, the mixing of the two liquids is carried out continuously and rapidly, and a uniform mixed liquid can be obtained.

The liquid thus mixed is used, for example, for repair work on iron bridges and concrete bridges. After the construction is completed, the shaft 5 may be removed from the case 2 and washed with a solvent or the like before the remaining resin is cured. Depending on the type of liquid to be mixed, cleaning can be performed by pouring the cleaning liquid from the inlet 10 without pulling out the shaft 5 and flowing it to the downstream side while rotating the shaft 5.

Although the disk-shaped partition wall 13 is adopted in the above-described embodiment, as shown in FIG. 4, a partition wall 13a in which a plate material having a large number of holes 14 is formed in a conical shape is used, and the convex side is the downstream side. It may be fixed to the shaft 5 so that In that case, the number of holes 14 can be increased, and the flow of the liquid tending to come to the center side of the shaft 5 causes beads that tend to move to the outside due to centrifugal force to move near the center of the shaft. Together, the efficiency of mixing and stirring becomes higher.

The beads 17 may be generally spherical, but for example, as shown in FIG. 5, if the beads 17a, which are so-called Konpeito sugar-like beads, provided with a large number of protrusions 23 on the surface of the sphere are used, the mixing efficiency is improved. It gets even higher. Further, it is also possible to crush synthetic resin wastes to an appropriate size and use the irregularly shaped beads obtained, and in that case, the cost can be further reduced. In that case, the shape may be molded and granulated. Styrofoam Styrofoam resin or other crushed resin is preferably used by compression molding so as to have an appropriate specific gravity.

[0017]

[Effect of the Invention] By using the mixing device of the present invention, various high-viscosity liquids (especially, viscosity of about 10 to 500 cps) such as urethane resin in addition to the above-mentioned two-liquid type epoxy resin can be continuously used. And it can be mixed sufficiently.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the device of the present invention.

2 is a plan view of the device of FIG. 1. FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view showing another embodiment of the partition wall according to the present invention.

FIG. 5 is a front view showing another embodiment of beads according to the present invention.

[Explanation of symbols]

 A Mixer 2 Case 3 Lid 4 Lid 5 Shaft M Motor 10 Inlet 11 Outlet 12 Stirring blade 13 Partition wall 14 Hole 15 Clearance 17 Beads 13a Partition wall 17a Beads

Claims (3)

[Scope of utility model registration request] 1. A cylindrical case having an inlet on a side wall on one end side and an outlet on a side wall on the other end side, a lid closing both end openings of the case, and concentrically housed in the case. A shaft that is rotatably supported by the lid, a stirring blade that is fixed on the shaft at intervals, and a shaft that is arranged and fixed on the shaft at intervals, inside the case. From a plurality of partition walls for partitioning, a large number of beads that are housed in a space between the partition walls in a freely moving state and are not attacked by a liquid to be mixed, and a drive mechanism that rotationally drives the shaft. The mixing device for high-viscosity materials, wherein the large number of holes formed in the partition wall and / or the gap between the partition wall and the case are dimensioned to allow liquid to pass and beads to pass. 2. The device according to claim 1, wherein the partition wall has a conical shape protruding toward the downstream side. 3. The device according to claim 1, wherein the case, the lid and the shaft are configured to be easily disassembled.