JPH09271648A - Stirrer and operation thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance stirring effect by rotating not only blades but also the outside rotary cover member positioned outside the blades. SOLUTION: This stirrer 4 is equipped with the blades 13 attached to the leading end of a first rotary shaft 18, a first rotary means 21, the second rotary shaft 10 provided outside the first rotary shaft 8 through a first bearing 9, the outside rotary cover member 14 having a side wall covering the opening part 14a provided to the leading end of the cover member and the stirring blades 13 and having side wall opening parts provided to the side wall and provided to the leading end of the second rotary shaft 10, a second rotary means 31 and a fixed casing 12. At least the blades 13 of the stirrer 4 and the outside rotary cover member 14 are positioned within a tank housing an object to be stirred and the blades 13 of the stirrer 4 and the leading end opening part 14a of the outside rotary cover member 14 are arranged so as to face to the bottom wall of the tank to perform the operation of the stirrer in such a state that the first and second rotary shafts 8, 10 are made different in rotational speed.

Description

Detailed Description of the Invention

The present invention relates to a stirrer and a method of operating the stirrer, and more particularly to a stirrer capable of improving a stirring effect by rotating a blade and an outer rotating cover body located outside the blade. It relates to a method of operating a stirrer.

[0002]

2. Description of the Related Art Conventionally, a stirrer for stirring and disintegrating has a blade provided at the tip of a rotary shaft and a fixed outer fixed cover body provided outside the blade.

Among substances to be disintegrated by stirring with this stirrer, for example, undissolved substances which could not be disintegrated by pulper and paper materials containing foreign substances such as plastic which could not pass through the screen of the screen were mixed. When the blades are rotated in the water,
The substance to be disintegrated is sucked and stirred from the bottom opening of the outer fixed cover body and discharged from the side opening provided on the side surface of the outer fixed cover body to be stirred and disintegrated.

[0004]

However, when this stirrer is used to some extent, only the blades rotate and the outer fixed cover body does not rotate. Therefore, undissolved substances, plastics, etc. in the side opening of the outer fixed cover body. Foreign matter of
Eventually, the side opening is blocked, and there is a drawback that stirring / disaggregation cannot be performed.

It is an object of the present invention to provide a stirrer and a method of operating the stirrer, which solves the above drawbacks.

[0006]

In order to achieve the above object, the agitator of the present invention comprises a first rotating shaft, a blade attached to the tip of the first rotating shaft, and the first rotating shaft. First rotating means for rotating the rotating shaft, and a second rotating shaft provided outside the first rotating shaft via a first bearing,
An outer rotary cover body provided at the tip of the second rotating shaft, and a second opening provided with a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. It is provided with a second rotating means for rotating the rotating shaft, and a fixed-side casing provided outside the second rotating shaft via a second bearing.

The operating method of the stirrer of the present invention is the first
A rotary shaft, a blade attached to the tip of the first rotary shaft, a first rotating means for rotating the first rotary shaft, and a first bearing outside the first rotary shaft. A second rotary shaft provided through the first rotary shaft, a front end opening having a front end opened, a side wall covering the blade, and a side wall opening provided on the side wall, and provided at the front end of the second rotary shaft. And an outer rotating cover body, a second rotating means for rotating the second rotating shaft, and a fixed side casing provided outside the second rotating shaft via a second bearing. A stirrer equipped with the stirrer, wherein the first rotary shaft and the second rotary shaft of the stirrer are operated with different rotations. Moreover, the operating method of the stirrer according to the present invention includes a first rotating shaft, a blade attached to a tip of the first rotating shaft, and a first rotating means for rotating the first rotating shaft. A second rotary shaft provided outside the first rotary shaft via a first bearing;
An outer rotary cover body provided at the tip of the second rotating shaft, and a second opening provided with a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. A stirrer comprising: a second rotating means for rotating a rotating shaft; and a fixed-side casing provided outside the second rotating shaft via a second bearing, at least the stirring device. Of the blade and the outer rotary cover body are placed in a tank containing an object to be stirred, and the blade of the stirrer and the tip opening of the outer rotary cover body are placed on the bottom wall of the tank. The first rotation shaft and the second rotation shaft are arranged so as to face each other, and the first rotation shaft and the second rotation shaft rotate differently from each other.

In the operating method of the stirrer according to the second or third aspect, the side wall opening is formed by a plurality of openings arranged in parallel at intervals.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An agitator according to an embodiment of the present invention will be described with reference to the drawings.

The stirrer of the present embodiment is used, for example, in a stage before separating the paper materials, waste plastics, etc. contained in the papermaking waste, and the paper materials contained in the papermaking waste,
The waste plastics are disentangled so that the paper stock and the waste plastics contained in the papermaking waste can be well separated in the next step.

The separated stock is used as a raw material for paper.
Further, the waste plastic can be reused as a raw material of the plastic.

In FIG. 1, reference numeral 1 denotes a tank for containing an object to be stirred and disaggregated. The tank 1 contains, for example, water 2 containing 1% by weight of papermaking waste containing paper materials, waste plastics and the like.
Is housed.

Above the tank 1, there is provided a supply pipe 3 for supplying water 2 containing 1% by weight of an object to be stirred and disintegrated into the tank 1, for example, papermaking waste containing paper materials, waste plastics and the like. ,
An agitator 4 for agitating and disaggregating water 2 containing 1% by weight of papermaking waste containing paper materials, waste plastics, etc. in tank 1.
However, below the tank 1, there are provided discharge pipes 5 for discharging the object stirred and disaggregated to the outside of the tank 1 to the outside of the tank 1. 6 is a pump for discharge.

As shown in FIG. 2, the agitator 4 has a first rotating shaft 8 at the inner center and a longitudinal direction of the first rotating shaft 8 outside the first rotating shaft 8. The first bearing 9
The second rotary shaft 10 provided via the second rotary shaft 10
Fixed side casings 12, which are provided outside the above, along the longitudinal direction of the second rotating shaft 10 via second bearings 11, are arranged respectively.

The first bearing 9 is, for example, a ball bearing in which a ball is inserted between the inner race and the outer race, and the inner race is fitted to the first rotary shaft 8. The outer race is fitted into the stepped portion provided on the inner wall of the second rotating shaft 10 so that the first rotating shaft 8 can freely rotate with respect to the second rotating shaft 10.

Similarly, the second bearing 11 is, for example, a ball bearing in which a ball is inserted between the inner race and the outer race, and the inner race is attached to the second rotary shaft 10. The second rotary shaft 10 can be freely rotated with respect to the fixed-side casing 12 by fitting and fitting the outer race into a step provided on the inner wall of the fixed-side casing 12. .

As shown in FIGS. 2 and 3, reference numeral 13 denotes a blade attached to the tip of the first rotating shaft 8.
13 has, for example, 2 to 6 rotary blades, and has a second rotary shaft.
It is covered with an outer rotary cover body 14 provided at the tip of 10.

The outer rotary cover body 14 has a front end opening 14a having a front end opened, a side wall 14b covering the blades 13,
It is composed of a plurality of side wall openings 14c provided on the side wall 14b.

The side wall opening 14c is formed by a plurality of openings arranged in parallel, and the shape of the opening is, for example, a slit shape, and the width of the slit is about 4 to 20 mm.

The outer rotary cover body 14 is a second rotary shaft.
Although it is provided at the tip of 10, the outer rotary cover body 14 is
As shown in FIG. 4, it may be fixed to the second rotating shaft 10 by a fixing means such as welding (welding portion X
Although not shown, the outer rotary cover body 14 and the second rotary shaft 10 may be integrally provided. Also, although not shown, the outer rotary cover body 14 and the second rotary shaft 10 are not shown. And may be attached via an attachment member (not shown).

A plurality of side wall openings provided on the side wall 14b
In addition to the case shown in FIG. 4, 14c may have side wall openings 14c ′ and 14c ″ as shown in FIGS. 5 and 6.

Further, as shown in FIG. 2, reference numeral 20 denotes a first rotating means for rotating the first rotating shaft 8, which is a first rotating means.
Reference numeral 20 denotes, for example, transmission means 22 such as a belt and a chain for rotating the motor 21, a chain wheel provided on the first rotating shaft 8 and a pulley (pulley).
Power is transmitted to the first rotary shaft 8 via a transmission means 23 such as a roller.

Similarly, as shown in FIG. 2, reference numeral 30 is a second rotating means for rotating the second rotating shaft 10, and the second rotating means 30 is a belt for rotating the motor 31, for example. Power is transmitted to the second rotary shaft 10 through a transmission means 32 such as a chain, a chain wheel, a pulley provided on the second rotary shaft 10, and a transmission means 33 such as a pulley. There is.

The first rotating shaft 8 and the second rotating shaft 10
Is designed to drive with different rotations.

Here, "different rotation" means the first
It means that the rotating speeds of the rotating shaft 8 and the second rotating shaft 10 are different, and the rotating directions of the first rotating shaft 8 and the second rotating shaft 10 are different.

As described above, it is the side wall opening 14c, the side wall opening 14c ', and the side wall opening 14c' that the first rotating shaft 8 and the second rotating shaft 10 are operated with different rotations. This is because when papermaking waste containing paper materials, waste plastics, etc. passes through, the shearing force acts more effectively on the papermaking waste.

As a result, as shown in FIG. 1, 1% by weight of paper waste containing at least the blade 13 of the stirrer 4 and the outer rotary cover body 14 and paper waste containing waste plastic and the like.
It is located in a tank containing water 2 (object) and the blades 13 of the stirrer 4 and the tip opening of the outer rotary cover body 14 are placed.
When 14a is arranged so as to face the bottom wall 1a of the tank 1 and the first rotary shaft 8 and the second rotary shaft 10 are operated with different rotations, the blades 13 cause the water 2 containing papermaking waste to reach the tip. Opening 14
Inhaled from a, stirred and disintegrated, side wall opening 14c
(Discharge from the side wall opening 14c ', side wall opening 14c''). The papermaking waste containing paper materials, waste plastics, etc. is the side wall opening 14c (side wall opening 14c ', side wall opening 14c).
When discharged from c ″), since the first rotating shaft 8 and the second rotating shaft 10 rotate differently, the papermaking waste is subjected to a larger shearing force, and the papermaking waste is further disintegrated and the side wall The opening 14c (side wall opening 14c ', side wall opening 14c'') can be prevented from being clogged by the centrifugal force of the outer rotary cover body 14.

The second rotating shaft 10 may be rotated continuously or intermittently (the first rotating shaft 8 is continuously rotated).

As an object to be disaggregated by stirring,
Water 2 containing 1% by weight of papermaking waste containing paper materials, waste plastics, etc. was used, but the agitator of this example and the operating method of the agitator do not disintegrate, and the same applies to agitating. Is applicable to.

[0030]

The agitator of the present invention comprises a first rotating shaft, a blade attached to the tip of the first rotating shaft, and a first rotating means for rotating the first rotating shaft. A second rotating shaft provided outside the first rotating shaft via a first bearing, a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. In preparation, the second
An outer rotary cover body provided at the tip of the rotary shaft, a second rotating means for rotating the second rotary shaft, and a second rotary means for rotating the second rotary shaft.
And a fixed side casing provided via a second bearing on the outside of the rotating shaft of the stirrer blade of the stirrer in the substance to be disintegrated by stirring or the substance to be mixed. When the outer rotating cover body is rotated, clogging of the side wall opening of the outer rotating cover body can be prevented and not only the blade but also the outer rotating cover body is rotated. You can

The operating method of the stirrer of the present invention is the first
A rotary shaft, a blade attached to the tip of the first rotary shaft, a first rotating means for rotating the first rotary shaft, and a first bearing outside the first rotary shaft. A second rotary shaft provided through the first rotary shaft, a front end opening having a front end opened, a side wall covering the blade, and a side wall opening provided on the side wall, and provided at the front end of the second rotary shaft. And an outer rotating cover body, a second rotating means for rotating the second rotating shaft, and a fixed side casing provided outside the second rotating shaft via a second bearing. A stirrer provided, which is operated with different rotations of the first rotary shaft and the second rotary shaft of the stirrer, so that the substance to be stirred and disaggregated or the substance to be mixed When the blades of the stirrer and the outer rotary cover body are rotated in the inside, the outer rotary cover is rotated.
Since the clogging of the side wall opening of the body can be prevented and not only the blade but also the outer rotating cover body rotates, more stirring and disaggregation or more stirring can be performed.

The operating method of the stirrer of the present invention is the first
A rotary shaft, a blade attached to the tip of the first rotary shaft, a first rotating means for rotating the first rotary shaft, and a first bearing outside the first rotary shaft. A second rotary shaft provided through the first rotary shaft, a front end opening having a front end opened, a side wall covering the blade, and a side wall opening provided on the side wall, and provided at the front end of the second rotary shaft. And an outer rotating cover body, a second rotating means for rotating the second rotating shaft, and a fixed side casing provided outside the second rotating shaft via a second bearing. A stirrer equipped with, wherein at least the blade of the stirrer and the outer rotating cover body are positioned in a tank containing an object to stir, and the blade of the stirrer and the tip opening are provided. The first rotating shaft and the second rotating shaft are arranged so as to face the bottom wall of the tank. Since the operation is performed with different rotations, when the blades of the stirrer and the outer rotating cover body are rotated in the substance to be disintegrated and to be disintegrated or to be mixed, the side wall opening of the outer rotating cover body is opened. It is possible to prevent clogging of the part and to rotate not only the blade but also the outer rotating cover body, so that more stirring and disaggregation or more stirring can be performed.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view of an apparatus for carrying out a method for operating an agitator according to an embodiment of the present invention.

FIG. 2 is a schematic explanatory view of the stirrer of FIG. 1.

FIG. 3 is a schematic bottom view of the stirrer of FIG. 1 viewed from the direction of arrow A.

FIG. 4 is a schematic perspective view of an outer rotating cover body of the agitator of FIG. 1.

FIG. 5 shows another embodiment of FIG. 4 and is a schematic perspective view of an outer rotating cover body.

FIG. 6 shows another embodiment of FIG. 5 and is a schematic perspective view of an outer rotating cover body.

[Explanation of reference numerals] 4 stirrer 8 first rotating shaft 10 second rotating shaft 12 fixed side casing 13 blades 14 outer rotating cover body 21 first rotating means 31 second rotating means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Teruo Makita 2590-1 Obuchi, Fuji City, Shizuoka Prefecture Fuji Industrial Technology Center, Shizuoka Prefecture (72) Akihito Mochizuki 2590-1 Obuchi, Fuji City, Shizuoka Prefecture Fuji Industrial Technology Center, Shizuoka Prefecture (72) Inventor Takeshi Kanazawa 191 Yuzuki, Shizuoka City, Shizuoka Prefecture Aikawa Iron Works Co., Ltd. (72) Inventor Tsutomu Sakai 1090-14 Hatori, Shizuoka City, Shizuoka Prefecture Nippon Kakko Co., Ltd.

Claims (4)

[Claims] 1. A first rotating shaft, a blade attached to a tip of the first rotating shaft, a first rotating means for rotating the first rotating shaft, and a first rotating shaft for rotating the first rotating shaft. A second rotary shaft provided on the outer side through a first bearing; a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. An outer rotary cover body provided at the tip of the rotary shaft, a second rotating means for rotating the second rotary shaft, and a second bearing provided outside the second rotary shaft. A stirrer comprising a fixed side casing. 2. A first rotating shaft, a blade attached to a tip of the first rotating shaft, first rotating means for rotating the first rotating shaft, and a first rotating shaft for rotating the first rotating shaft. A second rotary shaft provided on the outer side through a first bearing; a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. An outer rotary cover body provided at the tip of the rotary shaft, a second rotating means for rotating the second rotary shaft, and a second bearing provided outside the second rotary shaft. An agitator provided with a fixed-side casing, wherein the first rotating shaft and the second rotating shaft of the agitator are operated with different rotations. . 3. A first rotating shaft, blades attached to the tip of the first rotating shaft, first rotating means for rotating the first rotating shaft, and a first rotating shaft for rotating the first rotating shaft. A second rotary shaft provided on the outer side through a first bearing; a tip opening having a tip open, a side wall covering the blade, and a side wall opening provided on the side wall. An outer rotary cover body provided at the tip of the rotary shaft, a second rotating means for rotating the second rotary shaft, and a second bearing provided outside the second rotary shaft. A stirrer having a fixed-side casing, wherein the stirrer is positioned at least in the tank containing the object for stirring the blade of the stirrer and the outer rotating cover body, and the blade of the stirrer. And the front end opening of the outer rotary cover body so as to face the bottom wall of the tank. Then, the method of operating the stirrer is characterized in that the first rotating shaft and the second rotating shaft are operated with different rotations. 4. The method for operating an agitator according to claim 2, wherein the side wall opening is formed by a plurality of openings arranged in parallel at intervals.