JP2002052329A - Fluid mixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid mixing device in which a device for pouring and mixing waste water containing, for example cement components which ought to be treated on a construction site, or industrial waste water containing alkaline components or acidic components, and mixing other fluids efficiently is constituted at a low cost to be compact. SOLUTION: Each flow dividing part 3 consists of a pair of rectangular flow dividing plates 4, 4 and a pair of partition plates 5, 5. The length of the long side of the rectangular flow dividing plate is equivalent to the length of the diagonal of the square section of the passage 2 of a mixing pipe 1. The rectangular flow dividing plates are connected to each other in a state that two areas opposite to each other, forming a boundary between a pair of the rectangular flow dividing plates contacting with each other side by side at right angles are partitioned by a pair of the partition plates, thereby constituting one flow dividing part. The total width of a pair of the rectangular flow dividing plates in the flow dividing part is made to be equivalent to the length of each side of the square section of the passage of the mixing pipe, thereby a plurality of flow dividing parts can be accommodated in an arbitrary direction in the mixing pipe. Two areas opposite to each other on which partition walls are not installed are opened so as to be used as a flow passage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutralization reaction by injecting and mixing a neutralizing agent into a waste liquid containing a cement component to be treated at a construction site or an industrial waste liquid containing an alkali component or an acidic component. And a fluid mixing device used for mixing other fluids.

[0002]

2. Description of the Related Art Conventionally, carbon dioxide gas has been injected into a waste liquid to neutralize and discharge a waste liquid containing a cement component or an industrial waste liquid containing an alkali component to be treated at a construction site. Is being done.

As an example of a neutralization device for this purpose, a carbon dioxide gas supply pipe is connected to a pipe through which a waste liquid containing an alkaline component stored in a tank is pumped, so that the carbon dioxide gas is supplied to the pipe. There is a method in which after being sent to a stirring vessel while reacting with an alkali component, it is mixed by a stirrer and then stored in a storage tank as treated water, and this treated water is pumped out and discharged.

[0004] In addition to such a device for performing a neutralization reaction of a waste liquid containing an alkaline component, a device for performing a neutralization reaction of a waste liquid containing an acidic component, and further mixing fluids, Conventionally, a mixing device that mixes powder materials has a stirring blade provided in a container rotated by a motor, a static mixer provided with screw-shaped stirring blades in a tube, and fluids are joined by jet injection. Although there are jet mixers and injectors that are designed to be used, all of them have drawbacks such as complicated equipment, power, high cost, and troublesome work in terms of maintenance. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems. For example, a waste liquid containing a cement component to be treated at a construction site, or an alkali component or an acidic component It is an object of the present invention to provide a fluid mixing device in which a device for injecting and mixing a neutralizing agent into an industrial waste liquid or the like containing water and efficiently mixing other fluids is compact and inexpensive.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a fluid mixing device according to the present invention comprises a fluid mixing device for accommodating a plurality of flow dividing parts along the inside of a mixing pipe having a square cross section. A mixing device, wherein each of the flow dividing parts includes a pair of rectangular flow dividing plates and a pair of partition plates, and the rectangular flow dividing plate has a long side corresponding to a length of a diagonal line of a cross section square of the mixing pipe; A single shunting part is formed by joining two opposing regions forming a boundary between a pair of rectangular shunting plates in which the rectangular shunting plates are juxtaposed in an orthogonal state and separated by a pair of partitioning plates. Since the total width of the pair of rectangular flow dividing plates has a length corresponding to each side of the cross-sectional square of the flow path of the mixing tube, individual flow dividing parts can be stored in the mixing tube in any direction. Of a rectangular shunt plate Characterized in that the two opposing region partition plate is not provided and adapted to open as the flow channel forming.

According to a second aspect of the present invention, in the first aspect of the present invention, when one side of a square cross-section forming the passage of the mixing pipe has a length of 2D, the short side of the rectangular flow dividing plate is Length D, and the long side of the rectangular flow dividing plate is length D
Is given by the length L of the base which is the hypotenuse of the right-angled isosceles triangle, and the partition plate has a length 2D at the base forming a right-angled isosceles triangle and the length of the long side of the rectangular diversion plate L is one half of L.

According to a third aspect of the present invention, in the fluid mixing apparatus according to the first aspect of the present invention, the plurality of flow dividing parts are sequentially housed in the passage of the mixing pipe in the same direction or in different directions. It is characterized by having done.

According to a fourth aspect of the present invention, in the fluid mixing device of the first aspect, a perforated portion is formed in each of the pair of partition plates, and a long hook member is hooked on the perforated portion. Each of the branch parts can be drawn out of the mixing tube.

[0010]

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

The fluid mixing apparatus according to the present invention is such that a plurality of branch parts 3, 3,... Are accommodated in a mixing pipe 1 forming a passage 2 having a square cross section shown in FIG.

Each of the flow dividing parts 3 has the same structure, and as shown in FIG.
And a pair of partition plates 5,5. In such a component, as shown in FIG. 1, the rectangular flow dividing plate 4 has a long side 4a.
Is equivalent to the length L of the diagonal line C of the square cross section of the passage 2 of the mixing tube 1, and a pair of rectangular flow dividing plates 4, 4 are arranged side by side in an orthogonal state at the center in the longitudinal direction. One diverting part 3 is formed by joining two opposing regions forming the boundary between the rectangular diverting plates 4 and 4 in a state of being partitioned by a pair of partition plates 5 and 5.

That is, as shown in FIG. 1, the dimensional relationship of the individual flow dividing parts 3 is derived from the relation with the inside dimensions of the mixing pipe 1 forming the passage 2 having a square cross section in which the flow dividing parts 3 are to be stored. Assuming that one side of the cross-section square of the passage 2 of the tube 1 has a length 2D, the length of the short side of the rectangular flow dividing plate 4 is given by half the length D.

The long side 4a of the rectangular flow dividing plate 4 has a length D
Is the length L of the base that is the hypotenuse of the right-angled isosceles triangle. That is, as shown in FIG. 1, the length L is given by the square root of a value obtained by adding the square of 2D and the square of 2D according to the theorem of three squares. The bottom 5a of the partition plate 5 has a length of 2
A right-angled isosceles triangle with D, each hypotenuse 5
b and 5b are given by の of the length L of the long side of the rectangular flow dividing plate 4.

In order to form one diverting part 3 by the pair of rectangular diverting plates 4 and 4 and the pair of partition plates 5 and 5 as shown in FIG. , 4
Are aligned side by side at right angles to each other at the center in the longitudinal direction. To join.

This joining method can be easily performed by welding or the like when the constituent members of the flow dividing part 3 are formed of a metal plate.

The one diverting part 3 thus completed is:
As shown in FIG. 3 (a) or (b), two rectangular flow dividing plates 4, 4 are arranged in a state where the inclination directions are different from each other at right angles, and two opposing regions at the boundary of each other. Is the partition plate 5,5
And the other two opposing regions form an open channel.

The overall shape of one branch part 3 is as follows:
The total width of the pair of rectangular flow dividing plates 4, 4, that is, the total width 2 D of the flow dividing part 3 has the same length 2 D as each inner side of the cross-sectional square of the passage 2 of the mixing pipe 1, and the flow dividing part 3 has a side 2 D. Mixing tube 1 of passage 2 having a shape that fits in a cube and having a square cross section
It has a shape capable of accommodating the branch part 3 in any direction.

Further, a pair of partition plates 5, 5
Each of them has a perforated portion 6 formed therein, and a long hook member (not shown) can be hooked on the perforated portion 6 of the flow dividing part 3 housed in the passage 2 of the mixing tube 1 so as to be drawn out from the mixing tube 1.

By the structure of the above-mentioned dividing part 3, a plurality of dividing parts 3, 3,... Can be accommodated in the mixing pipe 1 having the passage 2 having a square cross section as shown in FIG.

In the mixing tube 1 shown in FIG. 4, when one side inside the passage 2 forms a square of 2D, the length of the mixing tube 1 is set to 2
By setting D × 4, four branch parts 3 can be stored. The diverting parts 3, 3,... Housed in the passage 2 of the mixing pipe 1 shown in FIG. 4 are the arrangement examples shown in FIG.

As a specific configuration of the mixing pipe 1, as shown in FIG. 4, flanges 10 and 10 are joined to the peripheral portions of the openings on both sides of the mixing pipe 1 having a square cross section, and the connecting pipe 11 is connected to the flange 10 on one side. Is bolted.
In addition, a branch pipe 13 is formed in the connection pipe 11, and the connection pipe 1 is formed.
1 and other pipes are connected by a thread groove formed on the inner circumference of the branch pipe 13.

The configuration of the mixing tube 1 is not limited to the above-mentioned one, but may be any other configuration as long as it has a passage 2 having a square cross section so that a plurality of branch parts 3, 3,. May be adopted.

In the fluid mixing apparatus of the present invention, the flow path changes depending on the arrangement of the flow dividing parts 3 to be housed in the passage 2 of the mixing pipe 1.

A description will now be given, with reference to FIGS. 5 to 8, of a specific example in which four branch parts 3, 3,... Are arranged in various directions in the passage 2 of the mixing tube 1. FIG. In the figures, the first, second, third, and fourth diverting parts are referred to from above the stored diverting parts 3, 3,....

In the arrangement shown in FIG. 5, each of the flow dividing parts 3, 3,... Is arranged with the partition plates 5, 5 of each of the flow dividing parts 3 in the vertical direction in the passage 2 of the mixing pipe 1. They are stored in the same direction. Therefore, in each of the flow dividing parts 3, 3,..., The pair of rectangular flow dividing plates 4, 4 are sequentially inclined in the same direction on the front side and the rear side in FIG. 5, respectively, and the upper and lower partition plates 5, 5, It is a situation where they are arranged vertically on the same plane.

In this case, the short sides 4b, 4b... Of the rectangular flow dividing plates 4, 4 of the respective flow dividing parts 3, 3. And the region where the partition plates 5 and 5 are not provided becomes a flow path.

The upper half of the first diverting part 3 is vertically divided into two parts by an upper partition plate 5, and a pair of rectangular diverting plates 4 having a downward slope from the rear to the front with the partition plate 5 as a boundary. , 4
Changes the direction of the flow path.

Further, the lower half of the front rectangular flow dividing plate 4 (4A) has a flow path opened rearward, and the lower half of the rear rectangular flow dividing plate 4 (4B) is opened forward. It has a channel.

Accordingly, the fluid that has entered the vertical mixing pipe 1 from above flows down by natural fall, and is diverted by the upper partition plate 5 of the first diverting part 3 to be divided into the rear and front rectangular diverting plates 4. Flow down along 4.

The fluid that has flowed down along the front rectangular flow dividing plate 4 (4A) rebounds on the wall surface inside the mixing tube 1 and flows backward while generating a vortex at the corner D with the wall surface of the mixing tube 1, and then flows downward. Of the second diverting part 3 at the rear side of the rectangular diverting plate 4 (4B). In addition, the rectangular flow dividing plate 4 (4
A part of the fluid flowing along A) bends the flow path backward in the lower half and flows down, and reaches the rectangular flow distribution plate 4 (4B) on the rear side of the lower second flow distribution part 3, where the flow is reduced. Join.

On the other hand, the fluid flowing down along the rectangular flow dividing plate 4 (4B) on the rear side of the first flow dividing part 3 rebounds on the wall surface of the mixing tube 1 and forms a vortex at the corner E with the wall surface of the mixing tube 1. It flows down while being generated, and reaches the rectangular flow dividing plate 4 (4A) on the front side of the second flow dividing part 3. Further, a part of the fluid flowing along the rectangular flow dividing plate 4 (4B) on the rear side of the first flow dividing part 3 flows downward by bending the flow path to the front of the lower half, and the rectangular flow dividing on the front side of the second flow dividing part 3. It reaches the plate 4 (4A) and merges with the above-mentioned downflow.

The subsequent flow passages of the other flow dividing parts 3, 3... Arranged in the same direction as the first flow dividing part 3 are formed by the same flow path as the first flow dividing part 3. The downstream part is received by the second branch part 3, the downstream part of the second branch part 3 is received by the third branch part 3, and the downstream part of the third branch part 3 is received by the fourth branch part 3.

However, the above description of the flow path is a simple description of the flow path.
Diversion, collision, rebound, including the flow path hitting the wall of
An extremely complicated flow is formed by merging, generation of a vortex, generation of a rotating flow, and the like, and the mixing and reaction of the fluids proceed efficiently in such a changing flow.

Further, since the vortex caused by the rotation of the earth is generated along the axis of gravity, if the mixing pipe 1 is made vertical and the fluid flows down, the rotating flow in the mixing pipe 1 is spontaneously generated, and It is possible to increase the turning efficiency of the vehicle.

The arrangement of each of the flow dividing parts 3, 3,... Shown in FIG. 6 is similar to that of FIG. Although the pair of rectangular flow dividing plates 4 and 4 are inclined in the left-right direction in FIG. 6, the inclination directions of the pair of rectangular flow dividing plates 4 and 4 of the second and fourth flow dividing parts 3 and 3 are arranged. Are arranged in the front-back direction in FIG.

Therefore, in FIG.
Is divided into upper and lower partition plates 5 and 5 as a boundary, and has a rectangular flow dividing plate 4 (4A) on the front side and a rectangular flow dividing plate 4 (4A) on the rear side.
B), the upper and lower partition plates 5 and 5 of the second split part 3 are provided in a vertical shape in which the upper and lower partition plates 5 and 5 of the first split part 3 are different at right angles. Of the right side has a downward slope in the front, the left side rectangular flow divider 4 (4G) has a downward slope in the rear, and the third branch part 3 is the same as the first branch part 3. And the fourth branch part 3 is arranged in the same manner as the second branch part 3.

Therefore, in the arrangement state of the flow dividing parts 3, 3... Shown in FIG. 6, the fluid that has entered the vertical mixing pipe 1 from above flows down by natural fall, and the flow path in the first flow dividing part 3 is: This is the same as the flow path of the first branch part 3 in FIG.

In the second diverting part 3 of FIG. 6, the fluid that has flowed backward from the lower half of the rectangular diverting plate 4 (4A) on the front side of the first diverting part 3 is a square on the right side of the second diverting part 3. It flows down along the inclined surface from above the flow dividing plate 4 (4F), and flows down by bending the flow path to the left side of the lower half in the middle of the inclined surface, while reaching the wall surface of the mixing tube 1 and the wall surface of the mixing tube 1 At the corner H, and flows down to the left while generating a vortex.

Further, in the second branch part 3, the first
The fluid that has flowed forward from the lower half of the rectangular flow dividing plate 4 (4B) on the rear side of the flow dividing part 3 flows down along the inclined surface from above the left rectangular flow dividing plate 4 (4G) of the second flow dividing part 3. ,
In the middle of this inclined surface, the flow path is bent to the right of the lower half and flows down, while reaching the wall surface of the mixing tube 1 and rebounding at the corner I with the wall surface of the mixing tube 1 to flow down to the right side while generating a vortex. .

Thereafter, the downstream part of the second branch part 3 is received by the third branch part 3, the downstream part of the third branch part 3 is received by the fourth branch part 3, and the mixing pipe 1 An extremely complicated flow is formed due to branching, collision, rebound, merging, generation of vortex, generation of rotational flow, etc., including the flow path that hits the wall surface, and the mixing and reaction of fluids proceed efficiently.

.. Shown in FIG. 7, the first and third branch parts 3, 3 are arranged in the vertical passage 2 of the mixing pipe 1 in the same manner as in FIG. 5. The second and fourth diversion parts 3, 3 are arranged in an inclined direction opposite to the direction of the second and fourth diversion parts 3, 3 in FIG. 6, and the right rectangular diversion plate 4 (4J) is located rearward. It has a downward slope, and the left-sided rectangular flow dividing plate 4 (4K) is in an arrangement state having a downward slope.

Therefore, each of the branch parts 3, 3,... Shown in FIG.
6, the flow path is substantially the same as that of FIG. 6, but the rectangular flow dividing plate 4 (4A) on the front side of the first flow dividing part 3
The fluid that has flowed backward from the lower half of the
6 flows down to the vicinity of the corner M of the rectangular flow dividing plate 4 (4J) on the right side of FIG.
(4J) There is hardly any flow path that bends to the right side of the lower half and flows down. The same applies to the case in which the rectangular flow dividing plate 4 (4B) on the rear side of the first flow dividing part 3 flows downward from the lower half, and the rectangular flow dividing plate 4 on the left side of the second flow dividing part 3
There is hardly any flow path that flows down near the corner L of (4K) and turns to the right of the lower half of the rectangular flow dividing plate 4 (4K) in the middle of the inclined surface. Therefore, the mixing and stirring effect of the flow path of FIG. 7 is slightly inferior to the mixing and stirring effect of the flow path of FIG.

Further, the arrangement shown in FIG. 8 is different from the arrangement shown in FIG. 8 in that the partition plates 5, 5 of the first and third flow dividing parts 3, 3 are arranged in the vertical direction in the passage 2 of the mixing pipe 1, and the second And the partition plates 5, 5 of the fourth flow dividing parts 3, 3 are stored in a horizontal direction.

In such an arrangement, the first and third
, The short sides 4 b, 4 b,.
a and 4a come into contact with each other and become closed. In the second and fourth flow dividing parts 3, 3, the short sides 4b, 4b... Of the respective rectangular flow dividing plates 4 and the bottom sides 5a, 5a of the respective partition plates 5, 5 are formed on the wall surface of the mixing tube 1. It comes into contact with and is closed.

The flow paths in the first and second branch parts 3, 3 are the same as the flow paths described with reference to FIG.
And the fourth flow dividing parts 3, 3, each of the rectangular flow dividing plates 4, 4 diagonally divides the passage 2 of the mixing pipe 1 to divide the flow path into two, and each of the partition plates 5, 5 has two opposing regions. To form a flow path that forms a horizontal plane.

Therefore, the fluid that has entered the vertical mixing pipe 1 from above flows down by natural fall, and the first branch part 3 forms the same flow path as in FIG. In the lower second diverting part 3, the fluid flowing from above is diverted by the upper rectangular diverting plate 4, and the diverted fluid falls vertically against the partition plates 5, 5 in the two opposing regions, and The flow path is changed to two opposing regions where 5 is not provided.

After that, the fluid that has passed through the second branch part 3 flows down to the third branch part 3 and flows into the first branch part 3.
Is formed, and further flows down to the fourth branch part 3 to form the same flow path as the second branch part 3. As described above, including the flow path corresponding to the wall surface of the mixing pipe 1, An extremely complicated flow is formed by diverting, colliding, bouncing, merging, generating a vortex, generating a rotating flow, etc., and the mixing and reaction of the fluids proceed efficiently.

As an example of use of the fluid mixing apparatus according to the present invention, a waste liquid containing an alkali component or an acidic component flows through a connecting pipe 11 connected to a mixing pipe 1 shown in FIG. By supplying, the liquefied carbon dioxide gas is mixed into the waste liquid flowing through the connection pipe 11, flows into the passage 2 of the mixing pipe 1, and passes through the flow path as shown in FIGS. The reaction is performed, and the water can flow out from the downstream side of the mixing tube 1 as treated water.

However, the fluid mixing device according to the present invention is used not only for the neutralization reaction of the waste liquid containing the alkali component and also for the neutralization reaction of the waste liquid containing the acid component as described above, but also for the two to be mixed. In addition, it can be used for mixing when mixing a powdery substance into a fluid.

[0051]

As described above, the fluid mixing apparatus according to the present invention accommodates a plurality of flow dividing parts along the inside of the mixing pipe having a passage having a square cross section. Since a simple flow dividing part composed of a plate and a pair of partition plates can be accommodated in any direction to form a complicated flow path, it can be made compact and inexpensive.

Various mixing efficiencies can be obtained depending on the number of flow dividing parts used for one mixing tube, or by changing the scale of the flow dividing parts, and further by the arrangement of the mixing tubes. Therefore, for example, when it is desired to lengthen the time of the neutralization reaction, the length of the mixing tube may be increased to increase the number of divided parts stored.

Further, according to the fluid mixing device of the present invention, by providing the mixing pipe vertically, the fluid flows down the pipe by spontaneous fall, and a complicated flow formed by the inner wall of the mixing pipe and a plurality of flow dividing parts. By the flow path, efficient mixing and reaction can be performed without using power.

Further, although the structure is compact and simple, two opposing regions, which are not provided with a partition plate forming a boundary between a pair of rectangular flow dividing plates, are opened as flow passages. Dividing, collision, merging, generation of vortex, and generation of rotating flow due to the diverting parts, a pair of partition plates and the wall of the mixing pipe are complicated, and it is possible to perform very efficient mixing and reaction action. It can be widely used not only for the neutralization reaction of treated water containing an alkali component, and also for the neutralization reaction of waste liquid containing an acidic component, but also for mixing other fluids or mixing fluids and powdered materials. .

Furthermore, the individual flow dividing parts can be set in different directions only by sequentially accommodating a plurality of flow dividing parts used in the fluid mixing device of the present invention from the opening of the mixing pipe forming a passage having a square cross section. When cleaning or replacing the inside of the mixing tube or individual diverting parts, a long hook member can be hooked into the perforated part formed in the partition plate of each diverting part and pulled out one after another. Very simple and easy handling is also possible.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a flow dividing part used in a fluid mixing device of the present invention, and FIG. 1 (b) is a perspective view of a mixing pipe for accommodating a plurality of flow dividing parts.

FIG. 2 is an exploded view of components used for a flow dividing part according to the present invention.

FIGS. 3 (a) and 3 (b) are completed perspective views of flow dividing parts according to the present invention, showing the flow dividing parts having the same configuration from different perspectives.

FIG. 4 is a side view of a mixing tube used in the fluid mixing device of the present invention.

FIG. 5 is a perspective view showing a specific example in which flow dividing parts according to the present invention are sequentially arranged in a mixing tube in the same direction.

FIG. 6 is a perspective view showing a specific example in which flow dividing parts according to the present invention are alternately arranged and stored in a mixing tube.

FIG. 7 is a perspective view showing another specific example in which flow dividing parts according to the present invention are alternately arranged and stored in a mixing tube.

FIG. 8 is a perspective view showing another specific example in which the flow dividing parts according to the present invention are alternately housed in a mixing tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mixing pipe 2 ... Passage 3 ... Dividing part 4 ... Square dividing plate 5 ... Partition plate 6 ... Perforated part

Claims (4)

[Claims] 1. A fluid mixing device for accommodating a plurality of flow dividing parts along the inside of a mixing pipe forming a passage having a square cross section, wherein each of the flow dividing parts comprises a pair of rectangular flow dividing plates and a pair of partition plates. Wherein the long side of the rectangular flow dividing plate has a long side corresponding to a length of a diagonal line of a square cross section of the mixing tube, and a boundary of a pair of rectangular flow dividing plates in which the rectangular flow dividing plates are juxtaposed in an orthogonal state. The two opposing regions to be formed are joined together in a state of being partitioned by a pair of partition plates to form one branch part, and the total width of the pair of square branch plates of the branch part is each side of the cross-sectional square of the flow path of the mixing pipe. By having a length corresponding to, the individual flow dividing parts can be stored in an arbitrary direction in the mixing pipe, and the flow path is formed in two opposing regions where a partition plate forming a boundary between the pair of rectangular flow dividing plates is not provided. To open as Fluid mixing apparatus characterized by. 2. Assuming that one side of a square cross section forming the passage of the mixing pipe has a length of 2D, a short side of the rectangular flow dividing plate has a length D, and a long side of the rectangular flow dividing plate has a length D. The partition plate is given by the length L of the base of the right angled isosceles triangle, and the partition plate has a length 2D of the base forming the right angled isosceles triangle and the length L of the longer side of the rectangular diversion plate. 2. The fluid mixing device according to claim 1, wherein said fluid mixing device is one-half. 3. The fluid mixing device according to claim 1, wherein said plurality of flow dividing parts are sequentially housed in the passage of said mixing pipe in the same direction or housed in different directions. 4. A perforated portion is formed in each of said pair of partition plates, and a long hook member is hooked on said perforated portion so that each of the flow dividing parts can be drawn out from said mixing tube. Item 7. The fluid mixing device according to Item 1.