JP2022096263A - Mixing rotor in rotary mixer for multi-liquid mixing device - Google Patents

Abstract

To solve a problem where a chemical liquid passes as it is in space rows where spaces between blades are arranged straight in an axial direction.SOLUTION: In a mixing rotor in a rotary mixer for a multi-liquid mixing device, a plurality of blades 2, 2a... are regularly arranged on the outer peripheral surface of a shaft part 1 without arranging spaces 4, 4a... between a pair of adjacent blades in an axial direction; a plurality of injected chemical liquids pass the spaces 4, 4a... and are split to split flows at a vertical blade part 6 when each blade 2, 2a... is formed by a horizontal blade part 5 formed along an arrangement direction and the vertical blade part 6 projecting toward the base end side of the shaft part 1 from the horizontal blade part 5 and being arranged at the center of the spaces 4, 4a... in the mixing rotor; a meander flow is made by repeating that the split flows are joined with the chemical liquid from the adjacent spaces 4a, 4b.... pass the tip side spaces 4, 4a... again and are split at the next vertical blade part 6; and mixing efficiency is improved by easily mixing the chemical liquid and delaying the arrival time of a mixed liquid to a tip.SELECTED DRAWING: Figure 2

Description

The present invention relates to a mixing groter in a rotary mixer for a multi-liquid mixer having high mixing efficiency regardless of the rotation speed.

Conventionally, as a rotor mixer that mixes multiple types of chemicals by rotating a mixgroter that is rotatably built in a casing with a nozzle formed at the tip, a form in which a plurality of blades are regularly arranged in a spiral direction. Is common.

For example, a mixer with a built-in mixgroter having an even number of blades in one cycle and having the same number of gap rows in which the gaps between the blades are arranged in a straight line in the axial direction as the number of blades in one cycle. (See, for example, Patent Documents 1 and 2).

FIG. 1 of JP-A-2008-68206 FIGS. 1 to 3 of Japanese Patent Application Laid-Open No. 2008-221536

However, in the above-mentioned prior art, for example, as shown in FIG. 10, the gaps b, b1 ... Between the blades a, a1 ... In the case of a mixing grower in which a plurality of gap rows c, c1 ... Are arranged in a straight line, depending on the conditions (for example, under low rotation speed), the chemical solution injected into the mixer at a predetermined pressure forms the gap rows c, c1 ... Since there is a possibility that it will pass through as it is and reach the tip, it is necessary to lengthen the mixer to secure the mixing time or rotate the mixgroter at high speed so as not to pass through the gap rows c, c1 ... as it is. There was a problem that had to be solved, such as the possibility that the set mixing performance could not be achieved.

In view of the problem that a defect may occur due to the gap row formed by aligning the gaps between the blades in a straight line in the axial direction based on the above-mentioned prior art, the present invention surrounds a plurality of blades on the outer peripheral surface of the shaft portion. The gap formed between one pair of blades facing the axial direction and regularly in the axial direction of the axial portion and the gap formed between the other pair of blades are not aligned in the axial direction. Each blade is arranged between a horizontal blade portion formed along the arrangement direction and a pair of blades that protrude from the surface on the proximal end side of the lateral blade portion toward the proximal end side and have the tip end facing the proximal end side. In the case of a mixin grower formed in an inverted T shape by a vertical blade portion aligned in the center of the gap, a plurality of chemical solutions injected at a predetermined pressure in a rotor mixer are arranged in a blade row on the base end side in an adjacent blade row. After passing through the gap between the blades, the flow is split at the vertical blade portion of the blades in the blade row on the tip side, merges with the chemical solution from the adjacent gap, and passes through the gap between the pair of opposing blades on the base end side again. By repeating the diversion at the vertical blade portion of the opposite blade on the tip side, the chemical solution is easily mixed, and the arrival time to the tip of the mixed liquid is delayed, improving the mixing efficiency. To solve the above problems.

In short, since the present invention has the configuration according to claim 1 to 4, a plurality of chemical solutions injected at a predetermined pressure into the rotor mixer at the time of mixing form a meandering flow while repeating splitting and mixing. Even at low rotation speeds, it is possible to mix evenly before ejection, which saves energy, and even if the length is shortened, the mixing performance can be maintained, so miniaturization is possible and manufacturing costs are reduced. The practical effect is enormous, such as being able to achieve this.

It is a perspective view of Example 1 of the mixing glower in the rotary mixer for a multi-liquid mixing apparatus which concerns on this invention. It is a schematic development view of the mixing growr of FIG. It is sectional drawing which shows the use state of the mixin groover of FIG. It is a front view of Example 2 of the mixing glower in the rotary mixer for a multi-liquid mixing apparatus which concerns on this invention. It is a schematic development view of the mixing glower of FIG. It is a perspective view of Example 3 of the mixing glower in the rotary mixer for a multi-liquid mixing apparatus which concerns on this invention. FIG. 6 is a schematic development view of the mixgroter of FIG. It is a perspective view of Example 4 of the mixing glower in the rotary mixer for a multi-liquid mixing apparatus which concerns on this invention. FIG. 8 is a schematic development view of the mixgroter of FIG. It is a schematic development figure of the conventional mixing groover.

In the mixing glower in the rotary mixer for a multi-liquid mixing device according to the present invention, basically, a plurality of blades 2, 2a ... Are placed on the outer peripheral surface of the columnar shaft portion 1 in the circumferential direction and of the shaft portion 1. Gap between one pair of blades 2, 2a ... and the other pair of blades 2, 2a ... 4, 4a ... Are arranged without being aligned in the axial direction.

Each blade 2, 2a ... protrudes toward the proximal end side from the surface of the lateral blade portion 5 on the proximal end side and is adjacent to the lateral blade portion 5 formed along the arrangement direction of the blades 2, 2a ... A gap 4, 4a ... between the blades 2, 2a ... on the proximal end side is formed in an inverted substantially T shape by the vertical blade portion 6 aligned in the center.

FIG. 1 is a perspective view of Example 1 of the mixer glower for a rotor mixer according to the present invention, FIG. 2 is a schematic development view of the mixgroter of FIG. 1, and Example 1 of the mixer glower for a rotor mixer is a shaft. A row of blade rows 3 in which a plurality of blades 2, 2a ... Are regularly arranged in a spiral direction is provided on the outer peripheral surface of the portion 1, and the blade row 3 is an odd number of blades in two spiral cycles, specifically. Since it is composed of nine blades 2, 2a ..., the gap 4, 4a ... between the blades 2, 2a ... on the proximal end side is an extension in the central axial direction of the blades 2, 2a ... on the distal end side. It is located on the line.

Each blade 2, 2a ... has a twisted fan-shaped lateral blade portion 5 formed along the spiral direction, and the lateral blade portion 5 along the axial direction from the center of the surface on the proximal end side to the proximal end side. It is formed in an inverted T shape by a vertical blade portion 6 that protrudes and is arranged at a position corresponding to the center of a gap 4, 4a ... Between adjacent blades on the proximal end side, and the vertical blade portion 6 is a horizontal blade portion. It has the same width as 5 and is perpendicular to the outer peripheral surface of the shaft portion 1, and the length of the vertical blade portion 6 is set to be shorter than the distance between the blades 2, 2a, etc. facing each other in the axial direction.

FIG. 4 is a front view of Example 2 of the mixing glower for a rotor mixer according to the present invention, FIG. 5 is a schematic development view of the mixing glower of FIG. 4, and Example 2 of the mixing glower for a rotor mixer is a shaft. The outer peripheral surface of the portion 1 has two rows of blade rows 3 and 3a in which a plurality of blades 2, 2a ... Are regularly arranged in a spiral direction, and each of the blade rows 3 and 3a has a plurality of blade rows 3 and 3a in one spiral cycle. Specifically, it is composed of five blades 2, 2a ..., and the gaps 4, 4a ... Between the blades 2, 2a ... In the blade row 3 on the proximal end side are the blades in the blade row 3a on the distal end side. It is located on the extension line in the central axial direction of 2, 2a ....

That is, the blade rows 3 and 3a have the same arrangement when the blades 2, 2a ... Are an odd number of spirals for one cycle. In the case of an even number of blades, since the blade row 3a is arranged in a state where the blade row 3a is shifted by half of one blade 2, 2a ... preferable.

Each blade 2, 2a ... Has the same configuration as that of the first embodiment, but the lateral blade portion 5 in each blade 2, 2a ... has a steeper angle than that of the first embodiment.

FIG. 6 is a perspective view of Example 3 of the mixing glower for a rotor mixer according to the present invention, FIG. 7 is a schematic development view of the mixing glower of FIG. 6, and Example 3 of the mixing glower for a rotor mixer is a shaft. There are 17 rows of blade rows 3, 3a ... in which a plurality of blades 2, 2a ... Of four blades 2, 2a ... Are regularly arranged in the circumferential direction on the outer peripheral surface of the portion 1, and one of the adjacent blade rows, 3a ... By shifting the other blade rows 3a, 3b ... by 45 degrees (360 degrees ÷ 4 (number of sheets) ÷ 2) with respect to 3, 3a ..., a pair of blades 2, 2a ... The gaps 4, 4a ... Between the gaps 4, 4a ... And the pair of blade blades 2, 2a ... Between the other blade rows 3a, 3b ... Are arranged without being aligned in the axial direction.

Each of the blades 2, 2a ... is a fan-shaped lateral blade portion 5 along the circumferential direction, and a blade on the proximal end side that protrudes toward the proximal end side from the surface on the proximal end side of the lateral blade portion 5 and has an adjacent tip. It is formed in an inverted T shape by the vertical blade portion 6 aligned in the center of the gaps 4, 4a ... Between the blades 2, 2a ... Of the rows 3, 3a ..., And the vertical blade portion 6 has the same width as the horizontal blade portion 5. The length of the vertical blade portion 6 is set to be shorter than the distance between the blades 2, 2a ... Facing each other in the axial direction so as to be perpendicular to the outer peripheral surface of the shaft portion 1.

FIG. 8 is a front view of Example 4 of the mixer glower for a rotor mixer according to the present invention, FIG. 9 is a schematic development view of the mixgroter of FIG. 8, and Example 4 of the mixer glower for a rotor mixer is described above. Although the configuration is substantially the same as that of the third embodiment, the vertical blade portion 6 is long and partitions the gaps 4, 4a ... Between the blades 2, 2a ... Of the adjacent base end side blade rows 3, 3a ...

Then, as shown in FIG. 3, a rotary mixer 11 having a mixgroter according to the present invention built in a casing 10 having a nozzle portion 10a formed at the tip thereof is attached to a head portion 13 of a two-component mixing type injector main body 12. At the same time, the two types of chemicals are supplied into the rotary mixer 11 from the means 15 and 15a for supplying the two types of chemicals, which are connected to the drive motor 14 and arranged in a facing state on both sides of the head portion 13. The two kinds of chemicals are mixed by the above-mentioned mixing groover in a rotating state.

At that time, as shown in FIG. 2, after the chemical solution passes through the gaps 4, 4a ... Between the pair of adjacent blades 2, 2a ... After passing through the gaps 4, 4a ... between the pair of blades 2, 2a ... on the tip side after being separated by and merging with the chemicals from the adjacent gaps 4a, 4b ... By repeating the splitting in the part 6, the meandering flow is formed, and the two kinds of chemicals are completely and uniformly mixed.

For example, in the same configuration as the conventional technique, four gap rows are formed in which the gaps between the blades are arranged in a straight line in the axial direction, which has blades arranged at a ratio of four blades in one spiral cycle. The same two-component mixed injection of a mixer with a built-in mixgroter and a mixer with a mixed mixer having the same configuration as in Example 1 and having blades arranged at a ratio of 5 blades in 2 spiral cycles. As a result of comparing how far the drug solution reaches without being completely mixed with the mixing groter rotated at the same rotation speed by mounting it on the machine, when the former is set to "1", the latter is "0.28". It is clear from the fact that the result of.

1 Shaft 2, 2a ... Blade 3, 3a ... Blade row 4, 4a ... Gap 5 Horizontal blade 6 Vertical blade

Claims (4)

A plurality of blades are placed on the outer peripheral surface of the shaft portion in a circumferential direction and regularly in the axial direction of the shaft portion, and a gap between one pair of blades facing the axial direction and a gap between the other pair of blades. Are arranged in a non-aligned manner in the axial direction, and each blade has a lateral blade portion formed along the arrangement direction, and the lateral blade portion projects from the surface on the proximal end side toward the proximal end side and the tip thereof is on the proximal end side. A mixer for a rotor mixer, characterized in that it is formed in an inverted T shape by a vertical blade portion aligned at the center of a gap between a pair of blades facing each other. By arranging a plurality of blades in a row in the spiral direction, the blades are regularly arranged in the circumferential direction and the axial direction of the shaft portion, and the plate is formed into an odd number of 3 or more in two spiral directions. The mixgroter for a rotor mixer according to claim 1, wherein the gap between one pair of blades facing the axial direction and the gap between the other pair of blades are arranged without being aligned in the axial direction. .. By arranging a plurality of blades in two rows in the spiral direction, the blades are regularly arranged in the circumferential direction and the axial direction of the shaft portion to form two rows of blade rows, and the plate has one cycle in the spiral direction. The first aspect of the present invention is that the number of the plurality of blades is three or more, and the gaps between the pair of blades in one blade row and the gaps between the pair of blades in the other blade row are arranged without being aligned in the axial direction. The mixed rotor for the rotor mixers described. By arranging a plurality of blade rows regularly arranged in the circumferential direction at predetermined intervals in the axial direction, a plurality of blades are regularly arranged in the circumferential direction and in the axial direction of the shaft portion and adjacent to each other. The mixgroter for a rotor mixer according to claim 1, wherein the gap between the pair of blades in one blade row and the gap between the pair of blades in the other blade row are arranged without being aligned in the axial direction.

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