JPS606689B2 - mixer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixer for mixing several liquids or fluids.

When mixing several types of liquids or fluids, such as two-component paints and adhesives, which consist of a base agent and a hardening agent, power is generally used to mix them. There is.

However, in this case, the size and complexity of the mechanism cannot be avoided, and for this reason, in recent years, non-drive type, so-called static type mixers have been provided. As shown in Japanese Patent Publication No. 54-27985, this mixer consists of two end plates each having an inlet and an outlet, and several pieces of appropriate length provided on each end plate. By inserting an intermediate plate in which several through holes of appropriate length are drilled in the same D shape to alternately fit both ends of the flow groove, and connecting them together, a zigzag-shaped flow path is created between both end plates. It is known that the formation of In this device, several types of liquids or fluids are forced into the zigzag-shaped flow path from the inlet and are mixed by repeating subdivision and merging as they pass through the zigzag-shaped flow path. Since it has fewer components and does not require moving parts, it has many advantages such as no failures and no vibrations.However, in this product, the longer the zigzag flow path, the more uniform the mixing becomes. However, in order to provide a flow path of sufficient length, the diameter must be increased, and even if the increase in diameter can be prevented by configuring it in multiple stages, in this case the number of component parts will increase. Moreover, if a flow groove and a suction through hole of an appropriate length are to be provided by machining, the longer the zigzag flow path is, the higher the processing cost will be. The present invention has been developed in view of these points, and its purpose is to achieve miniaturization, particularly miniaturization of the diameter, and also to achieve sufficient uniformity of mixing even when the depression is made small. "Other objectives are to provide a mixer that can be manufactured at low cost and is easy to clean, does not cause local stagnation, and further promotes uniform mixing. There is a mixer that can be used.

Therefore, in the mixer according to the present invention, the inside of the pipe, which has an inlet at one end and an outlet at the pond end, is partitioned into a plurality of spaces in the axial direction by several partition walls each having a small-diameter through hole. At the same time, the space through which the lotus flows through these through holes is filled with silk-like channel forming bodies that form a three-dimensional network channel, such as a large number of particles, needles, or continuous foam. It is characterized by being formed of two types: a fine mixing space and a large mixing space that is not filled with a silk-like channel forming body, and the fine mixing space has three channels. It is a dimensional silk-like flow path, and the subdivision and merging are repeated many times, so mixing is sufficient, and in the large mixing space, the degree of mixing in each part is uniform due to overall mixing. It was designed so that the
Of course, it is preferable that the fine mixing spaces and the large mixing spaces are provided alternately, and in this case, both spaces are filled through through holes in the partition wall, and these through holes are open at both ends. □ By making the position deviate from around the marrow of the pipe and also in the vertical direction of the pipe, the flow flowing into the space through the through hole becomes a swirling flow, which improves mixing. can be promoted. In order to fully utilize this swirling flow, it is preferable that the fine mixing space is cylindrical and the large mixing space has a diameter smaller than the diameter of the fine mixing space. The present invention will be described below in detail based on the illustrated embodiment. In FIG. It is partitioned into a plurality of spaces 2 and 3 that are lined up.

As shown in FIGS. 3 and 4, the partition wall 7 has a plurality of small-diameter through holes 8 that are closed at both end faces. In particular, each through hole 8 is made parallel to the axis of the disk-shaped partition wall 7. The diameter of the part where the opening at one end is located is larger than the diameter of the part where the opening at the other end is located, and the opening at one end is located closer to the partition wall 7 than the opening at the other end.
The partition wall 7 and the through hole 8 are arranged in a rotated position around an axis so that the axis of the partition wall 7 and the axis of the through hole 8 do not intersect three-dimensionally. Several of these partition walls 7 are arranged so that the surfaces are alternately reversed, and one end of the small diameter shaft part 12 is inserted into the hole 11 in the center of one of the partition walls 7.
The sea bream body 9 into which the sea bream is inserted and the ring-shaped spacer 13 are arranged alternately between the partition walls 7 to form spaces 2 and 3 around the shaft body 9 and inside the spacer 13, respectively. By filling the cylindrical space 2 between the barrel body 9 and the inner peripheral surface of the tube 10 with particles 4 such as beads,
A three-dimensional network channel is formed. The illustrated example shows bead-like particles 4 with an average particle size of about 2 yen (it is preferable that the particle sizes are irregular to some extent) to form this three-dimensional silk-like channel. In addition, granules such as sand grains and metal balls may also be used, and instead of granules, a large number of needles or rods may be used, or open synthetic resin foam having thin cells may be used. A three-dimensional silk-like channel may be formed by doing this. However, from the viewpoint of cleaning performance by passing the cleaning liquid through the mixer 1, it is preferable to use glass or ceramic beads, that is, spherical particles. Several kinds of liquids or fluids flowing in from 5 form a swirling flow from the direction of the axis of the through hole 8 when flowing into the space 2 through the through hole 8 of the partition wall 7 in the first stage, and After passing through the three-dimensional silk-like flow path, segmentation and merging are repeated many times, and then the small space 3 surrounded by the spacer 13 passes through the through hole 8 of the second stage partition wall 7. At this time, the mixed liquid flows into the space 3 from each through hole 8 as a swirling flow in the desired direction due to the direction of the axis of the through hole 8, so that overall mixing is promoted. Then, it passes through the three-dimensional silk-like channel in the space 2 again and reaches the outlet 6. That is, the space 2 filled with the network channel forming body is for fine mixing, that is, microscopic mixing, and the space 3, which is not filled with the network channel forming body, is for large mixing, that is, is in charge of the overall mixing.

Here, the space 2 that fills the net-like channel forming body has a cylindrical shape due to the positioning of the bag body 9 in the center, and the space 3 has a smaller diameter than the inner diameter of the tube 10 due to the spacer 13. The reason is that the bulkhead 7 is supported by the vehicle body 9 or the base plate 13.
This is not only due to the negative effect of the process being carried out in the space 2, but also due to the location of the through hole 8 and the position of the through hole 8 so that the mixed liquid that has flowed into the space 2 does not stagnate in some areas. The residence time in the mixer 1 is aimed at the direction of It is long and prevents it from hardening inside.

Further, regarding the directionality of the through-holes 8, the mixed liquid is swirled to further promote uniform mixing.
The length and number of spaces 2 may be set appropriately as shown in FIG. 2, and if the number and position of through holes 8 are taken into account, this space 2 does not have to be cylindrical.

Note that the silk-like channel forming body is omitted in FIG. 2.
In addition, although we have only mentioned two-component paints and adhesives as several types of liquids or fluids that need to be mixed, there are also cases where some other additives are mixed into the main material, such as when mixing a foaming agent with the main material. Of course, it can be used for As described above, in the present invention, a microscopic structure in which a three-dimensional network-like channel is formed by filling a pipe with a large number of silk-like channel-forming bodies such as granules, needle-like bodies, or open-cell foams, etc. A mixing space and a large mixing space that is not filled with a silk-like flow path forming body are partitioned in the pipe line in a vertical direction, and a partition wall is used to partition the pipe line into each space. In addition, since through holes are provided to sequentially communicate these spaces, the number of branching and merging points in the fine mixing space can be extremely large compared to the total length of the pipe, This ensures sufficient mixing, and in terms of overall mixing, which is a problem with mixing using this silk-like channel, there is a large mixing space, and each space has a small diameter through-hole. Because it was made to have a lotus speed by a hole,
This is sufficient to mix incompatible entities such as water and oil.

The partition wall partitions the inside of the pipe in the axial direction, and can be manufactured by filling the space formed by the partition wall with a silk-like channel forming material, so it can be provided at low cost, and each Because the spaces are arranged in the axial direction of the pipe, it can be made small, and it can be made small even though it can obtain sufficiently uniform mixing, so for example, 2
When dispensing liquid paint, even when using a hand-held spray gun as a dispensing device, it is possible to attach or incorporate a mixer to the spray gun to minimize the length of piping for the mixed liquid. It is something.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of one embodiment of the present invention, Fig. 2 a, b is a cross-sectional view of a pond example, Fig. 3 a, b is a cross-sectional view and plan view of the same partition wall, Fig. 4 a, b FIG. 2 is a cross-sectional view of another partition wall and a front view of the shaft body. 1 is a mixer, 2 and 3 are spaces for fine mixing and large mixing, respectively, 4 is a granule as a network channel forming body, 5 is an inlet port,
Reference numeral 6 indicates a discharge port, 7 indicates a partition wall, and 8 indicates a through hole. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. The inside of a conduit having an inlet at one end and an outlet at the other end is partitioned into a plurality of spaces in the axial direction by several partition walls each having a small-diameter through hole. At the same time, the spaces sequentially communicating through these through-holes are filled with a network channel forming body such as a large number of particles, needles, open foam, etc. that form a three-dimensional network channel. A mixer characterized in that it is formed of two types: a mixing space and a large mixing space that is not filled with a mesh channel forming body. 2. The mixer according to claim 1, wherein spaces for fine mixing and spaces for large mixing are provided alternately. 3. The through hole provided in the partition wall has opening positions at both ends thereof shifted around the axis of the pipe line and at positions shifted in the radial direction of the pipe line, as set forth in claim 2. mixer. 4. The mixer according to claim 3, wherein the fine mixing space is cylindrical, and the large mixing space has a diameter smaller than that of the fine mixing space. 5. Several spaces are provided in series between the inlet and the outlet, and every other space is filled with a mesh channel forming body, and the space is provided in a partition wall that partitions each space. The opening position of one end of the through hole, which opens into the filled space of the mesh channel forming body, is located on the outer peripheral side of the opening position of the other end, which opens into the unfilled space of the mesh channel forming body. A mixer according to claim 3 or 4, characterized in that: 6. The mixer according to claim 5, wherein the space filled with the network channel forming body is cylindrical. 7. The mixer according to claim 5, wherein the space that is not filled with the network channel forming body has a smaller diameter than the inner diameter of the pipe.