JP3207381B2 - Kneading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kneading apparatus, and more particularly, to a first rotating shaft in which kneading members are erected in a screw shape in the axial direction at predetermined pitch intervals, The present invention relates to a kneading apparatus having a second rotating shaft which rotates in conjunction with the rotation, and which stands upright with the kneading member being shifted in the axial direction at predetermined pitch intervals in a screw shape.

[0002]

2. Description of the Related Art Conventionally, this kind of kneading apparatus (mixer)
Is used for mixing, stirring, kneading, etc. of dewatered sludge, incineration or dust collected, dust mixed with a solidifying agent such as cement, or powder, and is disclosed in JP-A-62-157113 and JP-A-8-126727. As described in the gazette, a kneading member such as a rotating blade is usually attached to a rotating shaft of two shafts at a predetermined feed pitch in a screw shape, and the input dust and the like are kneaded with each other by the kneading member. It is configured to be transported and discharged.

[0003] In the above-described conventional apparatus, two rotating shafts are used to prevent the kneaded material from adhering to the surface of the kneading member and the rotating shaft, drying and solidifying and sticking to the surface, thereby reducing the work efficiency. A so-called self-cleaning system is adopted in which the kneaded material adhering to one shaft is scraped off by the other rotating blades or the like by rotating at a non-uniform speed. At this time, the pitch of the rotating blades and the like is set to a ratio determined by unequal speed so that the kneading members do not come into contact with each other.

[0004]

In such a conventional kneading apparatus, in order to improve the kneading, if the mixing time of the kneading member is to be increased, the kneaded material is conveyed as the rotating shaft rotates. Therefore, there is a problem that the transport path must be lengthened, that is, the rotating shaft must be lengthened in the axial direction, and the apparatus becomes large.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve such a problem, and it is an object of the present invention to provide a kneading apparatus capable of performing a compact and efficient kneading with a simple structure. is there.

[0006]

According to the present invention, in order to solve this problem, a first rotating shaft in which kneading members are erected in the shape of a screw in the axial direction at predetermined pitch intervals, A second rotating shaft which is rotated in association with the rotation of the rotating shaft, and is vertically erected by displacing the kneading member in a screw shape in the axial direction at a predetermined pitch interval, and by rotating the first and second rotating shafts; In a kneading apparatus that performs kneading via a kneading member and conveys the kneaded material in a rotation axis direction, the first and second rotation shafts rotate at a rotation ratio of 5: 4, and the kneading members collide with each other.
In order to avoid this, each kneading member of the first rotating shaft is
45 ° pitch shift on the circumferential screw line
And each kneading member of the second rotating shaft is a circumferential screw.
It is erected at a pitch of 36 ° on the line,
Wherein the first and second kneading member of the rotation shaft has become more conditions in a predetermined interval along the rotation axis, the predetermined interval
Here, the kneading member of the first rotating shaft is moved from the same axial center position.
Be placed at equal angles, shifted by 90 ° in the radial direction.
And a kneading member of the second rotating shaft
Are shifted by 72 ° in the radial direction from the same axis position.
A configuration in which the members are erected at five angles by being arranged at an equal angle is adopted.

With such a configuration, the kneaded material is kneaded and conveyed by a plurality of kneading members in a predetermined section, so that high-efficiency kneading can be performed in a small space and the entire apparatus can be reduced in size. It becomes possible to do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIGS. 1 and 2 show the structure of a kneading apparatus (mixer) according to an embodiment of the present invention. Substrate 1
0, a motor 11 is installed.
Rotates the rotating shaft 20 whose one end is supported by the bearing plate 14 via the pulleys 12 and 13. The rotating shaft 20 serving as a drive shaft (main shaft) is supported at its other end by a bearing plate 16 fixed to a housing 30, and a gear 17 is fixed to the bearing plate 14 side. The gear 17 meshes with a gear 18 of a rotating shaft 22 that is supported by the bearing plates 14 and 16, and when the motor 11 rotates, the rotating shaft 22 rotates in conjunction with the rotation of the rotating shaft 20. Thus, the rotating shaft 22 becomes a driven shaft (slave shaft).

A plurality of rods 20a, 22a are attached to the shaft surfaces of the rotating shafts 20, 22 in a screw shape with a predetermined pitch shifted in the axial direction. The mounting of this rod is described in JP-B-62-44969 and JP-A-62-15.
No. 7113, Japanese Unexamined Patent Application Publication No. 8-12827, etc., adopt a self-cleaning method, in which a rod end of one shaft is disposed so as to substantially contact the surface of the other shaft. Thus, the rotation of each shaft allows the tip of each rod to scrape off the kneaded material adhering to the surface of the other shaft.

In order to achieve such self-cleaning, the rotation ratio between the rotating shaft 20 and the rotating shaft 22 is unequal to N-1: N. : Set to a rotation ratio of the rotation shaft 22 = 5: 4 (N = 5). Further, in order to enhance the self-cleaning effect and prevent the rods from colliding with each other, the rods are arranged at a pitch of N × n ° on the circumferential screw line. In the present embodiment, for example, n = (N-1) + N = 9 is selected, whereby the rods 20a of the rotating shaft 20 are shifted at a pitch of 45 ° in the rotating direction, and the rods 20a of the rotating shaft 22 are also shifted. , Mounted at a pitch of 36 ° in the rotational direction.

Further, in the present invention, in order to knead the kneaded material more satisfactorily, the rods are erected in multiple rows. For example,
As shown in each figure, in the section between X1 and X3, the rods 20a and 22a are erected in a single row while maintaining the above pitch, but in the section between X2 and X4, the rod 20b is With a phase of ± 90 ° or 180 °
The rods 20b and 22b are erected by shifting the phase of the rod 22b by ± 72 ° or ± 144 ° with respect to 2a (that is, the rods 20a and 20b and the rods 22a and 22b are radially opposite from the same axial position). Protrude). In the section of X2, two rods are divided into two sections, while in the section of X4, a large number (14) of rods are divided into two sections like the rod in the section X2.

Further, as for the X5 rod at the left end in the drawing, a large number of rods having more than two rods are erected. Specifically, in the case of the rotating shaft 20, in addition to the rods 20a and 20b, rods 20c and 20d extending in the radial direction from the same axial position are provided upright. The rod 20c is erected at 90 ° with respect to 20a, and the rod 20d is erected at 90 ° with respect to 20b. Therefore, in the rotating shaft 20, the four rods protrude from the same axial position by 90 ° in the radial direction. In the rotating shaft 22, the rods 22a, 22b in this section
In addition, three rods are radially offset from each other by 72
The rods are erected at an equal angle of ° (only three rods 20a, 22b, 22c are visible in FIG. 1). A blocking plate 40 is provided adjacent to the multiple section X5.

In particular, how the rod is attached to each rotating shaft in the vicinity of the section X5 is shown in FIGS.
This is shown in (F).

Each of the rotating shafts 20 and 22 described above is housed in a housing 30 of the apparatus in FIG. 2. The housing 30 has an inlet 30a into which an object to be kneaded is inserted, and an inspection so that the kneading state can be checked. Ports 30b and 30c, a water pipe (nozzle) 50 for supplying water to the kneaded material, and a discharge port 30e for discharging the kneaded material are formed.

Next, the operation of the thus configured device will be described.

Various dusts, dusts, powders, chemicals and the like to be kneaded are introduced through the inlet 30a. The input object is conveyed to the left along the axis in the section X1 while being stirred and kneaded by the rotating shaft 20 rotated by the motor 11 and the rods 20a and 22a attached to the rotating shaft 22. Then, when reaching the section X2, the kneaded material is kneaded by the two rods 20a, 20b, 22a, 22b. In this section X2, the knitting becomes good because the rods are formed in two rows, and the transport amount in the axial direction is reduced and suppressed. In this section X2, the mouth 30
Water is supplied from d.

Subsequently, the kneaded material again enters one section X3, and thereafter repeats kneading through two sections X4, and is finally discharged from the discharge port 30e through four or five sections X5. . In the last section X5, the number of kneadings is multiplied because the number of kneadings is multiple, but the transport amount is extremely suppressed, and the closing plate 40 is provided, so that the discharge port 30e is provided.
Flow can be smoothed.

The kneading state in a predetermined section can be inspected or observed through the inspection ports 30b and 30c.

In the above-described example, the kneading member has a rod shape, but is not limited to this. The kneading member may be a paddle shape or a blade shape. The cross-sectional shape of the rod is preferably circular, but may be elliptical, rectangular, polygonal, triangular or the like.

The unequal speed ratio is not limited to 5: 4.
N can be an unequal speed ratio where N is an arbitrary number of 2 or more. Further, the pitch interval of the kneading members to be shifted in the axial direction can be a predetermined value determined by this unequal speed ratio,
For example, a number other than n = 9 in the above example can be used.

Two or more sections X2, X4, X
The length of 5 in the axial direction is not limited to the illustrated one, and the section can be expanded or contracted. For example, the last section X5
In the example, the rods having a length corresponding to one rod in the axial direction are formed in multiple rows. However, the rods can be extended to further suppress conveyance and improve the final kneading state.

In the example shown in the figure, one line, two lines
Article 1, Article 2, Article 4 (or Article 5)
By omitting section X2, sections 1, 2, 4 (or 5
), Or more sections, one and two, may be provided than shown.

In the illustrated embodiment, both rods of the rotating shafts 20 and 22 are connected in two or more sections.
Although there are multiple or multiple, only one of the rotating shafts may be configured with two or more.

[0025]

As described above, according to the present invention, the first
And the second rotation shaft rotates at a rotation ratio of 5: 4, and
The first axis of rotation to prevent the wills from colliding with each other
Each kneading member is 45 ° on the circumferential screw line.
With the pitch shifted, each kneading member of the second rotating shaft is
36 ° pitch shift on each circumferential screw line
And the kneading members of the first and second rotating shafts are
There are multiple sections in a predetermined section along the rotation axis,
In the predetermined section, the kneading member of the first rotating shaft is
90 ° radially shifted from the same axis center position
Is set up in Article 4, and
The kneading members of the rotating shaft are each radially shifted from the same shaft center position.
Stands at Article 5 by being shifted at an equal angle by 72 °
Since the arrangement is adopted , highly efficient kneading can be performed in a small space, and the entire apparatus can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a top view showing a configuration of a device with a part thereof cut away.

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

FIG. 3 is an explanatory diagram showing attachment of a rod in a multi-section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Motor 20 Rotating shaft 22 Rotating shaft 30a Input port 30b, 30c Inspection port 30e Discharge port

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01F ^7/ 00-7/32

Claims (3)

(57) [Claims] 1. A kneading member, comprising: a first rotating shaft, which is vertically erected in a screw shape at predetermined pitch intervals in an axial direction; and rotates in conjunction with rotation of the first rotating shaft to rotate the kneading member in a screw shape. And a second rotating shaft that is erected in the axial direction at predetermined pitch intervals, performs kneading via a kneading member by rotation of the first and second rotating shafts, and moves the kneaded material in the rotating shaft direction. in the kneading apparatus for conveying, the first and second rotating shaft is rotated at a rotation ratio of 5 to 4, mixed
To prevent the kneading members from colliding with each other,
Each kneading member of the rotating shaft of
Shifted at a 45 ° pitch interval, and
The kneading members have a pitch of 36 ° on the circumferential screw line.
Is erected by shifting interval, said first and second kneading member of the rotation shaft has become more conditions in a predetermined interval along the rotation axis, in the predetermined section, a first kneading member axis of rotation, same
90 ° radially shifted from the same axis center position
Is set up in Article 4, and
The kneading members of the rotating shaft are each radially shifted from the same shaft center position.
Stands at Article 5 by being shifted at an equal angle by 72 °
Kneading apparatus characterized by being set. 2. The kneading member of the first and second rotating shafts ,
The kneading apparatus according to claim 1 , wherein the kneading apparatus is provided upright at four or five sections in a region where the kneaded material is discharged. 3. A region kneaded material is discharged, the kneading apparatus according to claim 1 or 2, characterized in that plate blocked to dam portion kneaded product following the kneading member is provided.