JPS5916112Y2 - Fluid pressure fluid mixer - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fluid pressure-flow type mixer for mixing two or more types of fluids and causing a reaction, and aims to provide a compact, high-performance mixer that can be implemented at low cost. It is something.

Conventional equipment includes: (1) Vertical multi-stage detour mixer (Jikko 5)
4-1617), (2) A horizontal cylinder with many cross-shaped baffles attached, (3) Stirring tube (1986-
389869) etc. are used.

However, (1) above. The mixer (2) has a structure that mixes by detouring the fluid in the direction perpendicular to the axis within the container and extending the flow path, so unless the internal structure is complicated and dense, the flow path cannot be made sufficiently large, which not only makes the device complicated, expensive, and large, but also makes it impossible to make the mixing performance sufficiently large.

Further, although the mixer of (3) above is compact and has high performance, its complicated structure makes it difficult to manufacture and expensive.

In order to improve the above-mentioned drawbacks, the present invention creates a mixing chamber that reciprocates in the axial direction by partitioning the inside of the mixing cylinder of the mixer with a simple partition, thereby creating an extremely long flow path. The mixing chamber has a

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows the schematic configuration of the concrete waste liquid treatment equipment (2), in which Ca(OH)2 introduced into the concrete waste liquid storage tank 1
Concrete waste liquid containing a large amount of
At the same time, the carbon dioxide gas in the cylinder 2 and the sulfuric acid in the sulfuric acid tank 3 are fed to the mixer K, and after premixing in the mixer, they are introduced into the stirring tank 4 and stirred in the stirrer 5. The mixture is stirred and mixed to cause a sufficient neutralization reaction.

The inlet side of the mixer is connected to an inlet pipe 18, and the outlet side is connected to and fixed to an outlet pipe 19.

As shown in FIGS. 2 to 4, this mixer has a mixing chamber 8 with a long path that reciprocates in the axial direction of the mixing tube 6 by partitioning the inside of the mixing tube 6 with a partition 7. It is.

That is, the partition body 7 has a structure in which five radial partition plates 7a elongated in the axial direction of the mixing cylinder 6 are connected to each other at the axial center side, and each transverse partition plate 7b is fixed to both end surfaces thereof.

The five radial partition plates 7a are connected to the mixing tube 6 as shown in FIG.
The mixing compartments 8a, 8b, and 8C are arranged so that the cross section of is divided into five sections, three quarter circles and two eighth circles, and form a mixing chamber 8.

8d and 8e are formed.

And a transverse partition plate '7 on the left end surface of the first mixing compartment 8a.
The starting end 8A of the mixing chamber 8 opens b into a 1/4 circle, and the transverse partition plate 7b on the right end surface of the fifth mixing chamber 8e opens into a 1/4 circle.
A terminal end 8B of the mixing chamber 8 is formed with four circular openings.

In addition, from the first mixing compartment 8a to the fifth mixing compartment 8e,
Each upstream mixing compartment 8a, 8b, 8C, 8d
and the downstream mixing chamber 8b adjacent thereto.
, 8C, 8d, and 8e are connected in series at each communication gate 9.

This communication port 9 may be formed as a single opening at the left or right end of the radial partition plate 7a, may be formed as an opening consisting of a large number of small holes, or may be formed as a combination of these. .

In short, it is desirable to have a shape that disturbs the flow of fluid as much as possible and promotes mixing.

Furthermore, the first. Third. Fifth mixing compartment 8a, 8C, 8e
The cross-sectional area of the flow path is increased, and the second. Fourth mixing compartment 8b, 8d
By forming the cross-sectional area of the flow path small, the neutralization reaction is promoted under gentle low flow rate conditions in the former case, and mixing is promoted under turbulent high flow rate conditions in the latter case.

That is, concrete waste liquid is fed to the premixing chamber 12 from the inlet 10 at the left end of the mixing cylinder 6, and the concrete waste liquid is fed to the premixing chamber 12 through the inlet 1
3, H2SO4 and CO2 gases are supplied, collide with the transverse partition plate 7b in the premixing chamber 12, mix and react in a turbulent flow, and then flow into the first mixing compartment 8a. Neutralization reaction [Ca(OH)2+H2SO4→CaSO
4+2H20, Ca(OH)2+CO2→CaCO3+
H20].

The unreacted components are mixed and reacted in the second mixing chamber 8b, and further undergo an Okiwa reaction in the third mixing chamber 8C.

This third downstream side. 4th. 5th mixing compartment 8C98d, 8
In e, mixing and Okiwa reactions are promoted in the same manner as above.

In this way, the first to fifth mixing compartments 8a, 8b, 8e,
After mixing and reaction in the mixing chamber 8 consisting of 8d and 8e, the partially neutralized concrete waste liquid is transferred to the terminal part 8.
B and is fed into the stirring tank 4 from the outlet 11 at the right end of the mixing cylinder 6.

The partition body 7 consisting of the radial partition plate 7a and the transverse partition plate 7b is formed as a unit independent of the mixing cylinder 6,
It is detachably installed in the mixing cylinder 6.

That is, the transverse partition plate 7b on the left end surface of the partition body 7 is connected to the mixing cylinder 6.
The above-mentioned transverse shape of the partition body 7 is formed to have a larger diameter than the inner diameter of the premixing chamber 12 and the mixing tube 6 is flange-connected so as to be separable at the boundary between the premixing chamber 12 and the mixing chamber 8, and is inserted into the mixing tube 6. The partition body 7 is fixed to the mixing cylinder 6 by clamping and fixing the outer peripheral edge of the partition plate 7b to the flange joint part 14 (the fourth
(see figure).

In this case, a gasket or the like may be interposed between the outer edge of the radial partition plate 7a and the mixing tube 6, or an axial longitudinal groove may be provided in the mixing tube 6 to guide the outer edge.

Alternatively, the partition 7 may be fixed to the inner surface of the mixing cylinder 6.

Also, the first to fifth mixing compartments 8a, 8b, 8
The cross-sectional areas of the channels c, 8d, and 8e may be made equal.

Hereinafter, embodiments of the present invention can be formed as follows.

(1) As shown in FIGS. 6 to 11, partitions 7 having various cross-sectional shapes are provided in the mixing cylinder 6.

In the ones in Figures 9 to 11, the flow path in the axial center is 15°16
．． Although 17 may be a mixing compartment, it may also be used as a flow path for a heating or cooling fluid to promote a chemical reaction instead of being a mixing compartment.

(2) FIGS. 12 to 15 each show the appearance of the mixing cylinder 6, and the ones in FIGS. 12 and 13 are horizontal mixing cylinders 6,
Fluid supplied from the inlet 10 flows out to the outlet 11.

The one shown in FIGS. 14 and 15 is a vertical mixing cylinder 6.

(3) The radial partition plate 7a of the partition body 7 is formed of a corrugated plate material so as to improve the fluid mixing performance.

(4) The mixer of the present invention is suitable for a wide range of uses, in addition to being used as a mixer for neutralizing concrete waste liquid, as well as a mixing and reaction vessel for various other chemical reactions.

Therefore, the mixing cylinder 6 and the partition body 7 are manufactured using a steel plate, a stainless steel (SUS 316) steel plate, a synthetic resin material, etc. depending on the properties of the fluid to be applied.

In addition, if necessary, apply various types of coatings to prevent corrosion.

Since the present invention is configured as described above, it has the following effects.

By dividing the inside of the mixing cylinder vertically with partitions, the mixing chamber is formed to reciprocate in the axial direction, so a mixing chamber with an extremely long flow path and a small passage cross-sectional area can be created in a relatively short mixing cylinder. can be formed.

Therefore, two or more types of mixed fluids mix well while flowing through the mixing chamber of this long channel with a small cross-sectional area.

Furthermore, since the flow path is sharply reversed in the folded portion of the reciprocating mixing chamber, mixing of the fluids is promoted here as well.

Since the mixing performance is excellent in this way, a compact and high-performance mixer can be obtained.

Furthermore, this mixer can be implemented at a very low cost because it can be made simply by attaching a partition of a simple structure to the mixing cylinder.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially vertical front view showing the schematic configuration of a concrete wastewater treatment device, FIG. 2 is a vertical cross-sectional front view of a mixer, FIG. 3 is a perspective view of a partition, and FIG. Figure 4 is a partially enlarged view of section IV in Figure 2, and Figure 5 is a partial enlargement of part IV in Figure 2.
Line sectional views, FIGS. 6 to 11 are views corresponding to FIG. 5 of modified examples, and FIGS. 12 to 15 are front views of mixers of other modified examples. 6... Mixing cylinder, 7... Partition body (7a.
...Radial partition plate, 7b...Transverse partition plate), 8...Mixing chamber (8a, 8b, 8C,
8d, 8e...mixing compartment), 8A...
...Starting end of 8, 8B...Ending end of 8, 10.
...Entrance, 11...Exit, 18...
...Introduction pipe, 19... Output pipe.

Claims (1)

[Scope of utility model registration request] 1. An inlet 10 and an outlet 11 are provided at the end of the mixing cylinder 6, an inlet pipe 18 is connected to the inlet 10, an outlet pipe 19 is connected to the outlet 11, and the mixing chamber 8 in the mixing cylinder 6 is separated by a partition 7. A pressure-flow type mixer for fluids, characterized in that it is formed in a shape that reciprocates in the axial direction, and that a starting end 8A of a mixing chamber 8 is connected to an inlet 10, and a terminal end 8B is connected to an outlet 11. 2. Utility Model Registration Scope of Claim 1 In the fluid pressure-flow mixer described in claim 1, a plurality of radial partition plates 7a elongated in the axial direction of the mixing cylinder 6 are connected to each other on the axial side,
The partition body 7 is constructed by fixing each transverse partition plate 7b on both end faces, and the radial partition plate 7a is placed inside the mixing cylinder 6.
A plurality of mixing compartments 8a, 8b, 8c,
8d and 8e, and cholera mixing chambers 8a, 8b, 8
By sequentially connecting c, 8d, and 8e in series, the mixing chamber 8
formed. 3. Utility model registration Claim 2 In the fluid pressure fluid mixer described in claim 2, the mixing compartment 8 having a small flow passage cross-sectional area
a, 8C, 8e and a mixing compartment 8b with a large flow path cross-sectional area.
, 8d are alternately connected in series.