JPH08103643A - Mixer - Google Patents

Abstract

PURPOSE: To provide a compact agitating mixer for effectively mixing a material to be mixed in three-dimensional directions at random. CONSTITUTION: In a mixer, rotary blades installed around a rotating shaft 3 and ring-shaped spiral blades 5 jointed to the rotary blades are installed in a multiple manner from outside the rotary blades to the inside, and the turning directions of adjacent ring-shaped turning blades are reversed to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixer for stirring and mixing solid matter contained therein.

[0002]

2. Description of the Related Art In general, a mixer is not only a small type used for general household cooking but also a mixture of livestock feed, a mixture of microorganisms and its culture medium, and wastes in waste treatment. Larger types are used, such as a mixture of degrading microorganisms with the culture medium.

In such a large type mixer, it is indispensable to stir and mix the solid substance inside.

As such a configuration, for example, Japanese Patent Publication No. 2-
As disclosed in Japanese Patent No. 30760, a configuration in which impellers orthogonal to the rotation axis are provided, a configuration in which a screw conveyor with spiral blades is provided in a stirring tank, and a ring-shaped spiral blade is provided on the screw conveyor and outside the periphery thereof. Although the configuration provided and the configuration in which the stirring tank itself is rotated have been proposed, these configurations are extremely insufficient in terms of stirring the objects to be stirred so that they are randomly mixed in the three-dimensional direction. It was something.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mixer which overcomes such inadequacy in the mixing of the conventional mixers and enables sufficient stirring in a short time. It is a thing.

[0006]

In order to solve the above-mentioned problems, the structure of the present invention comprises a rotary blade provided around the rotary shaft and a ring-shaped spiral blade joined to the rotary blade, It is composed of mixers provided in multiple layers from the outer side to the inner side, and the swirling directions of adjacent ring-shaped swirling vanes are reversed.

[0007]

In order to uniformly disperse the organic wastes and the culture medium of the microorganisms, the organic wastes not only in the rotation direction (xy plane direction) of the rotating shaft in the stirring tank but also in the rotating shaft direction (z direction). It is essential that the transfer of material and culture medium takes place.

In the present invention, as shown in FIG. 1, not only the rotating blade 4 rotating along the rotating shaft 3 but also the rotating blade 4
Of two or more ring-shaped spiral blades 5 which are sequentially joined to all or a part of the
Not only is the blade 4 moved in the rotation direction (xy plane direction), but it is also moved in the direction along the rotation axis 3,
And, by circulating it, random stirring in the three-dimensional direction is realized, and the ring-shaped spiral blade 5 is
The rotating blades have a multi-layered structure from the inside to the outside, and the directions of rotation of the adjacent ring-shaped spiral blades 5 are reversed, and as a result, the ring-shaped spiral blades 5 are moved by the specific ring-shaped spiral blades 5 as shown by the solid arrows in FIG. After the object to be stirred 1 collides with the wall once, it is moved in the opposite direction by another ring-shaped spiral blade 5.

In the present invention, the ring-shaped spiral blade 5 having a multiple structure is adopted. In the case of a ring-shaped swirl blade having a single structure, the object to be stirred 1 on the outer side and the inner side of the swirl blade is a ring. Since it is moved by the pressing force of the object 1 to be stirred which is moved by the circular swirl blade 5, it is not directly moved by the rotation of the ring swirl blade,
Inevitably, the moving speed is slow, and therefore the outer circumference of the ring-shaped rotary blade must be designed to be large, whereas when the ring-shaped spiral blade 5 having a multiple structure is adopted, the solid matter inside the ring-shaped blade is covered. The agitated material is one of the ring-shaped spiral blades 5
Since it is forcibly moving in both directions with the rotation of, and there is no imbalance in the moving speed, the ring-shaped spiral blade 5
This is because there is no need to make a large design with a margin in the outer side direction, a compact design is sufficient, and stirring can be performed more efficiently than in the case of a ring-shaped swirler having a single structure (see FIG. 1). The ring-shaped swirler has a triple structure, but the present invention is not particularly limited to such a case.).

[0010]

[Embodiment 1] Embodiment 1 shows a case where the ring-shaped swirler has a double structure as shown in FIG.

Since the mixer 2 can perform sufficient stirring and mixing by the ring-shaped spiral blade 5 having such a double structure, even if it is not a particularly large mixer, a large number of structures having a triple structure or more are not necessarily required. Absent.

[0012]

Embodiment 2 In FIGS. 1 and 2, the ring-shaped spiral blade 5 is
The mixer 2 has the same spiral direction from one end to the other end, and the agitated object inevitably moves from one end to the other end.

On the other hand, in the structure shown in the embodiment, as shown in FIG. 3, the turning direction of the ring-shaped spiral blade 5 is reversed in the substantially central portion of the rotary shaft 3.

For this reason, when the object to be stirred 1 moves to the substantially central portion of the stirring tank 2 along the inner ring-shaped rotary blades, the organic waste and the organic waste that has moved from the opposite side at the substantially central portion. It is stirred by rotating while colliding with the culture medium 1, and as shown by the solid arrow, in the outer portion of the ring-shaped spiral blade 5 on the same side of the stirring tank 2, the direction opposite to the original direction. Spiral back to, or along the outer ring-shaped spiral blade 5 on the opposite side of the mixer 2,
It will proceed while spiraling in the same direction as before.

As described above, in the second embodiment, the organic waste and the culture medium 1 perform more complicated agitation in the substantially central portion of the agitation tank 2 than in the configuration shown in FIGS. Stirring can be realized.

[0016]

As described above, according to the present invention, based on the combination of the rotating blade and the ring-shaped spiral blade having the inverted direction due to the multiple structure, in the mixer having a compact design, not only the rotating direction of the rotating shaft but also The object to be stirred reciprocates along this, and these enable random movement in the three-dimensional direction, whereby efficient mixing can be realized.

[Brief description of drawings]

FIG. 1 is a side sectional view showing the operation principle of the present invention.

FIG. 2 is a side sectional view showing the configuration of the first embodiment.

FIG. 3 is a side sectional view showing the configuration of the second embodiment.

[Simple explanation of the sign]

 1: Object to be stirred 2: Mixer 3: Rotating shaft 4: Rotating blade 5: Ring-shaped spiral blade

Claims (3)

[Claims] 1. A rotary spring provided around a rotary shaft and ring-shaped spiral blades joined to the rotary spring are multiply provided from the outer side to the inner side of the rotary blade, and the ring-shaped swirling blades adjacent to each other are provided. A mixer based on the turning direction being reversed. 2. The mixer according to claim 1, wherein the ring-shaped spiral blade has a double structure. 3. The mixer according to claim 1, wherein the swirling directions of the ring-shaped spiral blades are opposite to each other at a substantially central position of the rotary shaft.