JPH06254369A - Filler for mixing and dispersing - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a filler for mixing and dispersing, which can obtain a sufficient mixing and dispersing action even when the pipe to be incorporated has a large diameter. [Structure] A plurality of elements 1 composed of a single twist plate having a right twist portion and a left twist portion around an axis are connected in parallel to each other to form a filler unit 2, and the filler unit 2 is connected in series in the axial direction of the elements. Filler for mixing and dispersing disposed in. [Effect] The element can be manufactured automatically, and the dispersion filler can be manufactured at low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing / dispersing filler installed in a bubble column or a reaction tank, and more particularly to a mixing / dispersing filler using a static mixer element. Reaction, absorption and the like are performed depending on the properties of the fluids mixed and dispersed.

[0002]

2. Description of the Related Art A static mixer, which is one of static mixers, has static mixer elements 81 and 81 'in a bubble column or in a reaction tank 82 as shown in FIG.
It is well known that the mixing efficiency is increased by installing the mixer inside the mixer, and the mixing efficiency of the mixer is well known. As a mixing stirrer using such a conventional static mixer element, for example, “Food Machinery Equipment No. 11 (1981) Issued annually) ”No. 7
Pages 1 to 80 and those described in JP-A-53-103269.

In such a static mixer, there is no moving part in the mixer itself, and the purpose of mixing is achieved only by passing the fluid through the element fixed inside the pipe.
Moreover, the pressure loss, which is the power required for stirring, is relatively small, and it can be used for mixing almost any combination of liquid, gas and solid.

[0004]

However, in the conventional static mixer, when the diameter of the reaction tank or the like becomes large, the mixing action in the space partitioned by the elements is not sufficient and the contact efficiency between the fluids is not sufficiently improved. There's a problem.

The present invention was made in order to solve the problems of the conventional filler for mixing and dispersing by the static mixer element. That is, it is an object of the present invention to provide a mixing / dispersing filler capable of obtaining a sufficient mixing / dispersing action even when the pipe to be incorporated has a large diameter, and a unit constituting the same.

[0006]

[Means for achieving the object]

According to the present invention, the above object can be achieved by the following mixing and dispersing filler unit and filler.

[0008] A plurality of static mixer elements are connected in parallel to each other, and as the elements,
A mixing / dispersing filler unit containing an element consisting of a single twisted plate having a right twist portion and a left twist portion around the element axis.

A mixing / dispersing filler unit having an element combination body in which a plurality of static mixer elements are connected in parallel to each other through a plate-like body or a mesh-like body.

A filler for mixing and dispersing, which is formed by arranging at least one of the above filler units in series in the axial direction of the static mixer element.

The term "combining a plurality of static mixer elements in parallel with each other" means that the twist axes of the respective static mixer elements face the same direction, and the elements are joined in a direction perpendicular to the direction of the twist axis. It means that there is.

The plate-shaped body or the mesh-shaped body is preferably bent and interposed along the radial outer peripheral portion of the element.

The element preferably comprises a twist plate having a right twist portion and a left twist portion around the axis.

The filler for mixing and dispersing is preferably formed by interposing at least one dispersion plate between arbitrary filler units.

[0015]

In the packing material and the unit constituting the packing material of the present invention, a plurality of static mixer elements are connected in parallel with each other. Sufficient mixing, dispersion and stirring can be performed.

An element composed of a twist plate having a right twist portion and a left twist portion around the axis has a larger mixing / dispersing and stirring action than a twist plate twisted only to the right or left.

An element composed of a single twist plate having a right twist portion and a left twist portion around the element axis is manufactured at a lower cost than an element formed by joining the right twist plate and the left twist plate by welding or the like. it can. That is, the welding of the right twist plate and the left twist plate in the axial direction is troublesome, and a special jig is required to hold the positions of the right twist plate and the left twist plate. However, an element consisting of a single twist plate having a right twist portion and a left twist portion around the axis is a special jig for holding the position of the twist plate without welding in the filler unit in the axial direction, which requires time-consuming welding. It can be easily manufactured by twisting one plate to the right and left without using. Therefore, the manufacturing of the element can be automated and the manufacturing cost can be reduced.

When the filler unit has an element combination body in which a plurality of static mixer elements are connected in parallel via a plate-like body or a mesh-like body, the filler unit can be easily manufactured. That is, when the plate-like body or the mesh-like body is not interposed, it is necessary to weld the elements to each other between the end surfaces of their radial outer peripheral portions, that is, between the convex surfaces (see FIG. 3, which will be described later). Difficult to do. However, when a plurality of static mixer elements are connected in parallel via a plate-like body or a mesh-like body, a plate-like body or a mesh-like body is provided on the outer peripheral portion in the radial direction of the element, and the element is fixed to this in parallel. It can be provided. That is, welding between convex surfaces can be avoided, for example, welding can be performed between convex surfaces and flat surfaces, between convex surfaces and concave surfaces, the assembly of elements can be simplified, and the unit can be easily manufactured.

In particular, when a plate-like body or a mesh-like body is bent and interposed along the outer peripheral portion of the element in the radial direction, the contact area of the element can be increased and the elements can be provided at a high density. It can be manufactured more easily and strongly.

Further, when the elements are connected in parallel via the plate-like body or the mesh-like body as in the present invention, the positioning of the elements can be performed with the plate-like body or the mesh-like body as a reference, and the unit is further improved. It can be easily manufactured.

The number, twist angle, length, etc. of each of the right twist portion and the left twist portion of the specific element contained in the filler unit according to the first aspect can be appropriately set. As long as it has such a specific element, the filler unit according to claim 1 may be constituted by an element of any other shape. Further, the static mixer element constituting the filling material unit according to the second aspect may have an arbitrary shape. For example, an element twisted 180 ° to the right and an element twisted 180 ° to the left may be welded in series in the twist axis direction so that the twist axes do not match.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the filler for mixing and dispersing of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view in the axial direction of the element of a reaction vessel 11 containing an example of the filler for mixing and dispersing of the present invention.

The filler for mixing and dispersing according to the present invention comprises a filler unit 2 formed by connecting a plurality of static mixer elements 1 in parallel with each other and arranged in series in the axial direction of the elements. That is, a plurality of static mixer elements are arranged in parallel with their axial directions facing the same direction to form the filler unit 2, and the units 2 are arranged in series in the axial direction of the elements.

The static mixer element 1 is shown in FIG.
As shown in, the right twist part (twist angle 180 °) around the axis 1
It is composed of a single twist plate having R and a left twist portion (twist angle 180 °) 1L. The twist angles of the right twist portion and the left twist portion are
It may exceed 180 °. Further, the right twisted portion and the left twisted portion may be alternately provided in the required number. The element of FIG. 4 has a shape in which the axial end faces of the right twist plate and the left twist plate are completely continuous. Since the element having such a shape can be automatically manufactured, the manufacturing cost can be reduced.

FIG. 2 is a view of the mixing / dispersing filler unit 2 in FIG. 1 as viewed from the axial direction of the element, and FIG. 3 is a view of the unit 2 in a direction perpendicular to the axial direction of the element (arrow D1). FIG.

The unit 2 has a plate-like body 3 on the outer peripheral portion of the element 1 in the radial direction. The elements are connected through the plate-like body 3 so that the elements are arranged in parallel. In this way, the plate-shaped body is provided on the radial outer peripheral portion of the element, and the plate-shaped body is interposed between the convex surfaces that are the end faces of the radial outer peripheral portions of the adjacent elements. Therefore, the convex surface and the flat surface may be welded. .
Such plate-like body simplifies the assembly of the element,
The filler unit can be easily manufactured, and the positioning of the element can be performed with reference to the plate-shaped body.
In FIG. 2, the plate-like body is interposed in all the connecting portions between the elements, but a part of the plate-like body is omitted and
You may interpose a plate-shaped object in every 3 rows.

In FIG. 2, the plate-like body 3 is the element 1
Is bent along the radial outer peripheral portion to increase the contact area with the element outer peripheral portion. At the same time, in the case of FIG. 2, the number of elements assembled per unit area is increased. FIG. 5 shows an end surface of the plate-shaped body in the unit 2 in the element radial direction. The end face of the plate-shaped body in FIG. 5 has ten bent portions, and the smaller angle θ of each bent portion is 120.
°. The plate-shaped body may have its end face bent in a curved shape such as a corrugated shape instead of being bent in a linear shape as shown in FIG. FIG. 6 is a view of the plate-shaped body of FIG. 5 viewed from the direction of arrow D2. You may provide a through-hole in the thickness direction of a plate-shaped body. In this case, it is possible to mix fluids between adjacent elements, and mixing efficiency is further improved. Therefore, in the present invention, a lath sheet or a mesh body can be used instead of the plate body 3.

The length of the plate-shaped body in the axial direction of the element is shown in FIG.
As shown in (1), the length is substantially the same as the axial length of the element 1, but it can be made shorter within a range that does not hinder the assembly of the element. For example, it can be set to 1/4 of the length of the plate-shaped body in FIG. Further, the plate-shaped bodies can be provided only at both ends of the element 1. In this case, since the plate-shaped bodies do not exist in the radial outer peripheral portion of the central portion of the element, the fluid can be exchanged between the adjacent elements. The mixing efficiency is further improved. The same applies when a net-like body is used instead of the plate-like body.

The circle 21 drawn by the alternate long and short dash line in FIG.
A circle 22 passing through the maximum diameter of the filler unit 2 of the present invention, which is drawn by a broken line, is the inner wall surface of the reaction tank of FIG. The filler unit 2 of the present invention can be provided at a predetermined distance from the inner wall surface of the reaction layer.

As shown in FIG. 1, the filler for mixing and dispersing of the present invention comprises the above filler units 2 arranged in series in the axial direction of the element. In FIG. 1, the dispersion plate 4 is provided between the units.

The dispersing plate 4 has various through holes such as a punching plate which has a through hole and allows the passage of the fluid, and at the time of the passage, the position of the fluid in the radial direction of the reaction tank 11 is replaced. The partition plate of can be used.

An example of such a dispersion plate 4 is shown in FIG. Figure 7
[FIG. 4] is a view of the dispersion plate 4 as viewed from the axial direction of the element, which has a plurality of through holes 4a.

The reaction tank shown in FIG. 1 will be described below. The fluid is supplied to the reaction tank from the supply port 11A. A fluid to be reacted with the fluid is ejected from the nozzle 16. These two fluids enter the first filler unit 2 inside the reaction vessel.

The two kinds of fluids are mixed and dispersed for each element by passing through the first unit 2 and are supplied to the next unit. In this way, the mixing and dispersing and stirring of the two kinds of fluids progress every time the fluid passes through the unit, and the mixing and dispersing and stirring can be performed sufficiently efficiently to promote the reaction.

In FIG. 1, the dispersion plate 4 is provided between the units. The two kinds of fluids mixed and dispersed by the unit are temporarily retained by the dispersion plate 4, re-dispersed in the radial direction of the reaction tank by passing through the dispersion plate 4, and enter the next unit. Therefore, when the dispersion plate 4 is provided between the units, the dispersion is further performed in addition to the mixing and dispersing and stirring of the fluid by the units, so that the two kinds of fluids can be mixed and dispersed and stirred more satisfactorily.

Such a dispersion plate can be provided between any units in any number as required. Between units,
The unit and the dispersion plate may be joined by welding or the like, but they need not be joined as long as the positions can be held to some extent during mixing and dispersion. Similarly, the filler of the present invention does not necessarily have to be fixed in the reaction tank.

[0038]

In the filling material and the unit constituting the same of the present invention, a plurality of static mixer elements are connected in parallel with each other, so that even if the pipes to be built in have a large diameter, sufficient mixing and dispersion of fluids can be efficiently performed. You can do well. When the filling material unit contains an element consisting of a single twisted plate having a right-handed twist portion and a left-handed twist portion around the element axis, it is possible to automate the production of the element, and thus the filling material unit, and thus the filling material. Can be manufactured at low cost.

Further, when the filler unit has an element combination body in which a plurality of static mixer elements are connected in parallel to each other through a plate-like body or a mesh-like body, the filler unit can be easily manufactured, and The positioning of the element can be performed with the plate-shaped body or the mesh-shaped body as a reference, and the filler unit can be manufactured more easily.

Further, when the plate-like body or the mesh-like body is bent and intervenes along the radial outer peripheral portion of the element, the contact area with the element can be expanded and the elements can be provided at a high density. The unit can be manufactured more easily and firmly.

[Brief description of drawings]

FIG. 1 is a cross-sectional view in the axial direction of an element of a reaction vessel containing an example of a filler for mixing and dispersing of the present invention.

FIG. 2 is a view of the filler unit shown in FIG. 1 viewed from the axial direction of the element.

FIG. 3 is a view of the filler unit shown in FIG. 1 viewed from a direction perpendicular to the axial direction of the element.

FIG. 4 is a diagram showing a static mixer element that constitutes the filler unit shown in FIG. 1.

5 is a view of the plate-like body used in the unit of FIG. 2 as seen from the axial direction of the element as in FIG.

6 is a view of the plate-shaped body of FIG. 5 as viewed in the direction of an arrow D2 (a direction perpendicular to the axial direction of the element of FIG. 2).

FIG. 7 is a view of the dispersion plate as viewed from the axial direction of the element.

FIG. 8 is a cross-sectional view in the axial direction of an element of a conventional reaction tank containing a static mixer.

[Explanation of symbols]

 1 ... Static mixer element 1R ... Right twist part 1L ... Left twist part 2 ... Filler unit 3 ... Plate-like body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyoshi Takase 3-36 Noritake Shinmachi, Nishi-ku, Nagoya City, Aichi Prefecture Noritake Company Limited Limited

Claims (6)

[Claims] 1. A static mixer element comprising a plurality of static mixer elements connected in parallel to each other, said element comprising an element composed of a single twisted plate having a right twist portion and a left twist portion around the element axis. Filler unit for mixing and dispersing. 2. A mixing / dispersing filler unit having an element combination body in which a plurality of static mixer elements are connected in parallel to each other through a plate-like body or a mesh-like body. 3. The mixing / dispersing filler unit according to claim 2, wherein the plate-like body or the mesh-like body is bent and interposed along an outer peripheral portion of the element in the radial direction. 4. The filler unit for mixing and dispersing according to claim 2 or 3, wherein the element comprises a twist plate having a right twist portion and a left twist portion around an axis. 5. A filler for mixing and dispersing, comprising one or more of the filler units for mixing and dispersing according to claims 1 to 4 arranged in series in the axial direction of the static mixer element. 6. The filler for mixing and dispersing according to claim 5, wherein at least one dispersion plate is interposed between arbitrary filler units.