JPH11253776A - Agitator with oblique shaft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the movement of a central section of a material to be agitated of medium to high viscosity and clean easily a container and a tool. SOLUTION: In an agitator with an oblique shaft 4 driven by a motor 3 inserted obliquely from above a cylindrical container 1 with a semicircular bottom section 1a, an agitator frame 5 is fixed on the lower end of the oblique shaft 4 and the diameter section of the agitator frame 5 is made to conform to the axial center of the oblique shaft 4, and the lower section of the agitator frame 5 is set close to and along the bottom section 1a of the cylindrical container 1 and one or a plurality of agitating bars 6 are provided on a section of the shape of lacking a part of a circular ring of the agitator frame 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oblique stirrer used for processing foods and the like. More specifically, the present invention relates to stirring high-viscosity materials and washing containers and utensils after stirring. The purpose of this is to make it easier.

[0002]

2. Description of the Related Art As a conventional technique, first, actual fairness 2 is considered.
As shown in JP-A-9884, an oblique shaft driven by an electric motor is inserted obliquely from above the heating kettle to near the bottom thereof into a heating kettle which is a cylindrical container having a hemispherical bottom. At the lower end of the shaft, there is an oblique shaft stirrer in which an arc-shaped support rod along the bottom is fixed, and this support rod and the oblique shaft form an anchor type stirrer. A shaft was inserted from above, and a spiral stirring blade was provided on this vertical shaft. On top of that, the support rod was equipped with a number of scraping blades that were in contact with the inner surface of the bottom of the heating pot.

Second, as shown in FIG. 7, an oblique shaft 4 driven by an electric motor 3 is inclined from above the cylindrical container 1 into a cylindrical container 1 whose bottom 1a has a hemispherical shape. And an annular stirrer frame 5 at the lower end of the oblique shaft 4.
5 is fixed, the diameter portion of the stirrer frame 55 is made to coincide with the extension of the axis of the oblique shaft 4, and the lower part of the stirrer frame 55 is brought close to and along the bottom 1a of the cylindrical container 1, A plurality of round pipes, stir bars 56 made of flat steel plate, etc., which intersect with the extension of the axis of the oblique shaft 4, form a ring in the ring portion in the stirrer frame 55 at intervals from one another. And a plurality of scraping blades 10 that are in contact with the inner surface of the bottom 1a of the cylindrical container 1 are mounted below the stirrer frame 55.

[0004]

However, such a conventional diagonal shaft having an anchor-shaped stirrer formed by an arc-shaped support rod and a diagonal shaft is disclosed in Japanese Utility Model Publication No. 2-9884. In the case of a shaft stirrer, since the stirring shaft only penetrates the center of the heating pot vertically, when the viscosity of the material to be stirred is high or when there is a large amount of solids, the vicinity of the rotating stirring shaft is Stirring could not be performed, and in particular, stirring and mixing were hardly performed with a high-viscosity material to be stirred.

Therefore, a flexible scraping blade that slides on the inner surface of the heating pot is provided on the arc-shaped support rod, or a vertical axis is added, and a spiral stirring blade is provided below the vertical axis. However, there are problems that the structure becomes complicated and that the container and the utensil are difficult to wash because the stirrer adheres.

Further, in the case of the second oblique-axis stirrer shown in FIG. 7, the situation can be considerably evaluated for a low-viscosity material to be stirred. Movement was weak and the problem remained. Further, since the object to be stirred is fixed to the annular stirrer frame depending on the shape of the cross section, there remains a problem that the container and the instrument are difficult to clean. An object of the present invention is to solve such a problem.

[0007]

According to the present invention, an oblique shaft 4 driven by an electric motor 3 is inserted obliquely from above the cylindrical container 1 into a cylindrical container 1 whose bottom 1a has a hemispherical shape. In the shaft stirrer, a stirrer frame 5 is fixed to the lower end of the oblique shaft 4, the diameter of the stirrer frame 5 is made to coincide with the extension of the axis of the oblique shaft 4, and One or more stirring rods 6 are set by moving the lower part close to the bottom 1 a of the cylindrical container 1.
Are arranged in a portion of the stirrer frame 5 having a shape lacking a part of the ring, and further, the stirrer frame 5 is provided with one or more stirring rods 6. The area of the part lacking a part of the ring has an area of 55% to 90% as compared with the area of the ring,
Further, the shape of the cross section of the stirring bar 6 is characterized by a circle, an ellipse or a rectangle. Further, when the shape of the cross section of the stirring bar 6 is a rectangle, the inclination of the stirring bar 6 is adjusted by the stirrer frame. 5. The outer stirrer frame 35 which rotates independently of the rotation of the stirrer frame 5 outside the stirrer frame 5 is characterized in that it is set at 5 to 60 degrees with respect to the surface of the stirrer frame 5. The rotation direction of the outer stirrer frame 35 is further characterized in that:
The rotation direction of the stirrer frame 5 is set to be opposite to the rotation direction. Further, when the stirrer frame 5 is used alone, the stirrer frame 5 is provided below the stirrer frame 5, and In the case of the structure of the outer stirrer frame 35, one or more scraping blades 10 that are in contact with the inner surface of the hemispherical bottom 1a of the cylindrical container 1 are provided below the outer stirrer frame 35. The above problem is solved by the features described above.

[0008]

DETAILED DESCRIPTION OF THE INVENTION The oblique shaft stirrer according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view including a longitudinal sectional view of a part of an oblique shaft stirrer according to a first embodiment of the present invention. FIG. 2 is a side view of a lower part of a stirrer frame of the oblique shaft stirrer shown in FIG. FIG. 3 is a view showing a state where a stirrer bar is attached to a stirrer frame of the oblique shaft stirrer shown in FIG. 1, and FIG. 4 is a view showing the oblique shaft stirrer shown in FIG. FIG. 5 is a diagram showing a relationship between a stirrer frame, a stir bar, and an oblique axis.
FIG. 6 is a view showing a relationship among an outer stirrer frame, a stirrer frame, a stirrer, and an oblique axis of an oblique-axis stirrer according to a second embodiment of the present invention. FIG. It is the figure which showed the cross-sectional shape of the stirrer frame of the shaft stirrer, and the outer stirrer frame of the oblique shaft stirrer shown in FIG.

(First Embodiment of the Present Invention) As is apparent from these figures, in FIG. 1, a mounting table 2 is fixed to an outer surface of one end upper portion of a cylindrical container 1 having a hemispherical bottom 1a. An electric motor 3 with a speed reducer is fixed on the base 2, and the upper end of the inclined shaft 4 is detachably connected to the tip of the rotating shaft 3 a of the electric motor 3. The rotating shaft 3 a and the inclined shaft 4 of the electric motor 3 are cylindrical. The container 1 is inclined at about 25 degrees with respect to the vertical axis of the container 1 as shown in the figure.

In this case, the rotating shaft 3a and the inclined shaft 4 of the electric motor 3 are disposed at an angle of 10 to 50 degrees, preferably about 25 to 50 degrees with respect to the vertical axis of the cylindrical container 1. It is good for stirring. When this angle is close to 0 degrees, the oblique axis 4 is rotated in a vertical state, so that the state becomes a state of movement rather than agitation.
If it is close to the degree, the oblique shaft 4 needs to penetrate the side surface of the cylindrical container 1 and the structure becomes complicated.

At the lower end of the inclined shaft 4, a stirrer frame 5 made of a pipe material or a bar is fixed, and the diameter of the annular portion of the stirrer frame 5 is assumed to be the axis of the oblique shaft 4. The stirrer bar 5 is made of five flat steel plates that are aligned with the extension of the core, and the lower part of the stirrer frame 5 is made to approach the bottom 1 a of the cylindrical container 1 and is aligned with the extension of the oblique shaft 4.
Are arranged at intervals from each other in a portion of the stirrer frame 5 where a part of the ring is missing.

In this case, the stirrer rod 6 is shown as intersecting at 45 degrees in FIG. 1 with the extension of the axis of the oblique shaft 4, but it is suitable for the type of the object to be stirred. It is preferable that the stirrer frame 5 is disposed at an angle in a part of the ring shape lacking a part of the ring. However, in order to prevent the stirrer from sticking to the center p in the case where the stirrer frame 5 is assumed to be an annular shape and the stirrer frame 5 is assumed to be an annular shape, the stirrer bar 6 should be prevented from being disposed. Is good.

On the other hand, the shape of the cross section of the stirring rod 6 is not only a rectangle made of a flat steel plate but also a circle or an ellipse, and it is conceivable to use a rod material, processing from a rod material, pipe material, or the like. Further, the spacing between the stirring rods 6 may be parallel at equal intervals or parallel at irregular intervals depending on the type of the object to be stirred, and may not be parallel depending on the case.
Specifically, it is as shown in FIG.

Further, in the case where the stirrer bar 6 is made of a flat steel plate, FIG. 3 shows the stirrer frame 5 at an angle of 45 degrees with respect to the surface constituting the stirrer frame 5. It is effective to fix these ends to the stirrer frame 5 at an angle of, preferably, 30 to 60 degrees.

In FIG. 1, five stirring rods 6 are disposed in a portion of the stirring bar frame 5 having a shape lacking a part of the ring, while the chord 5a is connected to the oblique shaft 4. The stirrer frame 5 has a crescent shape by being formed in parallel, but the area of the stirrer frame 5 is approximately 65% as compared with the area in the case of a ring. I have. However, when the area of the stirrer frame 5 is 55% to 90%, preferably 60% to 80% as compared with the area in the case of a ring, the fluidity inside the cylindrical container 1 can be effectively increased. it can.

However, the shape of the stirrer frame 5 is as follows.
In addition to the above, if it is asymmetrical with respect to the extension of the axis of the oblique shaft 4, a considerable effect can be obtained even if it does not matter that the chord 5a is parallel to the oblique shaft 4. Further, as the shape of the stirrer frame 5 and the inclination of the stirrer bar 6 with respect to the extension of the axis of the oblique shaft 4, various shapes and angles as shown in FIG. Can be

However, neither the shape of the stirrer frame 5 nor the inclination of the stirrer bar 6 with respect to the extension of the axis of the oblique shaft 4 is limited to those shown in FIGS. That is, as for the shape of the stirrer frame 5, as long as the stirrer bar 6 is provided in a portion of the stirrer frame 5 that lacks a part of the ring, all the shapes have a certain effect. Among them, if it is asymmetric with respect to the extension of the axis of the oblique axis 4, the effect is further added. As for the inclination of the agitating rod 6 with respect to the extension of the axis of the oblique axis 4, a certain effect can be seen at all angles of 0 to 180 degrees.

In particular, regarding the meaning of disposing one or a plurality of stirring rods 6 in a portion of the stirring bar frame 5 having a shape lacking a part of the ring, as shown in FIGS. Even if the overall shape of the stirrer frame 5 is a ring, the effect can be seen if the portion where the stirring bar 6 is provided has a shape lacking a part of the ring. Note that FIG. 4 generally shows a structure in which fluidity is enhanced and a structure in which the scraping blade 10 is easily disposed on the outer peripheral side of the lower portion of the stirrer frame 5 described later.

In this case, as shown in FIG. 6, the shape of the cross section of the stirrer frame 5 may be a circle, an ellipse, a rectangle, a diamond, or the like. As the direction, as shown by the arrow in FIG. 6, when the object is arranged so as to have the least resistance when moving forward, it is possible to prevent the object to be stirred from sticking. In the cross-sectional shape of the stirrer frame 5, regarding the cross-sectional area of the string 5a, contrary to the contents described so far, the shape having the highest resistance when moving forward has the highest resistance. Arranging them in locations may be effective in increasing liquidity.

Further, as shown in FIGS. 1 and 2, the stirrer frame 5 has a bearing member 7 and a supporting shaft 9 at its tip at a portion facing the lower end of the inclined shaft 4, and a bottom portion of the cylindrical container 1. A support shaft 9 is rotatably fitted to and supported by a mounting cylinder 8 fixed to the inner surface of 1a. Here, the axis of the bearing member 7, the mounting cylinder 8, and the support shaft 9 are aligned with the extension of the axis of the oblique shaft 4. However, a configuration in which the support shaft 9 and the mounting cylinder 8 are removed in order to prevent the object to be stirred from sticking is also conceivable.

On the other hand, on the lower part of the stirrer frame 5, a scraping blade 10 projecting from the outer peripheral side of the stirrer frame 5 and in contact with the bottom 1a of the cylindrical container 1 is positioned at a right angle to the stirrer frame 5. It is installed at several places. in this case,
The scraping blades 10 are disposed asymmetrically with respect to the stirrer frame 5 so that the entire inner surface of the bottom 1a of the cylindrical container 1 is rubbed by one rotation of the oblique shaft 4 and the stirrer frame 5. The scraping blade 10 is divided into several pieces 10a, each of which is made of a heat-resistant and flexible plastic molded product.

Further, a small fixed lid 11 covers one side of the top opening of the cylindrical container 1, and the oblique shaft 4 is inserted through the fixed lid 11 without hindering the rotation thereof. An opening / closing lid 12 that is larger than the fixed lid 11 that covers the other side is connected to be rotatable in the vertical direction. The outer periphery of the cylindrical container 1 is divided into three stages, upper and lower, to form steam chambers 13a, 13a.
b, 13c, and these steam chambers 13a, 13b,
13 c is heated by appropriately feeding steam from steam supply pipes 15 a, 15 b, 15 c branched through valves 14 a, 14 b, 14 c to heat the object to be stirred in the cylindrical container 1. The chamber 13c is supported on the floor by a plurality of columns 16.

The oblique shaft stirrer according to the present invention is configured as described above, and its operation will be described below.

In the oblique shaft stirrer of the first embodiment configured as described above, a stirrer made of bean jam, sugar and the like is placed in the cylindrical container 1, the opening / closing lid 12 is closed, and the steam chambers 13a, 13a
By driving the electric motor 3 and rotating the rotating shaft 3a at a low speed while appropriately feeding and heating steam into the b and 13c, a part of the ring integrated with the oblique shaft 4 was omitted. The stirrer frame 5 having the shape is rotated.

Here, when the stirrer frame 5 having a shape lacking a part of the ring rotates, a plurality of stirring rods 6 mounted on the frame also rotate. Are intersected at several angles with the extension line of the stirrer, while the object to be stirred is sheared vertically and horizontally by the stirring bar 6 or caused to flow in the cylindrical container 1, Rotates while greatly changing the angle with respect to the horizontal plane, and when the stirrer frame 5 makes one rotation, the whole area of the object to be stirred is stirred with a three-dimensional trajectory, efficiently in a short time, and evenly and sufficiently. Stirring and mixing can be performed, and the object to be stirred can be stirred and mixed without deteriorating the object to be stirred.
In this case, if the object to be stirred and the liquid are agitated and left as, for example, starch and water, it is effective even when the object to be stirred is separated toward the bottom.

Further, the scraping blades 10 rotate integrally with the stirrer frame 5, and when they rotate once, the material to be stirred is scraped from the entire inner surface of the bottom 1a of the cylindrical container 1 and stirred. The objects to be stirred near the bottom 1a can be sufficiently stirred, so that they remain on the inner surface of the cylindrical container 1, such as the bottom 1a, and are prevented from being scorched.

After the stirring and mixing of the object to be stirred have been completed as described above, the motor 3 is stopped, and the opening / closing lid 12 is opened.
Alternatively, the object to be stirred is taken out of the cylindrical container 1 by opening the discharge valve 17.

(Second Embodiment of the Present Invention) Next, an oblique shaft stirrer according to a second embodiment of the present invention will be described with reference to FIG.
The difference of the second embodiment of the present invention from the first embodiment of the present invention is that the outer stirrer frame 35 which rotates independently of the rotation of the stirrer frame 5 is provided outside the stirrer frame 5. It was arranged.

Therefore, although not specifically shown in FIG. 5, the oblique shaft 37 is provided with two axes so that the stirrer frame 5 and the outer stirrer frame 35 rotate independently without being related to each other.
Connected to one motor. Therefore, as shown in the first embodiment, it can be considered that one motor performs coaxial transmission and the other motor transmits rotation by a chain or a belt. . Also, 2
The stirrer frame 5 and the outer stirrer frame 35 can be rotated at a different speed or rotated in opposite directions because they are connected to the electric motors, so that more complete stirring is possible. It became. In this case, the angle of the oblique axis 37 may be considered in the same manner as the oblique axis 4 of the first embodiment.

The cross-sectional shape of the outer stirrer frame 35 may be a circle, an ellipse, a rectangle, a diamond, or the like, as shown in FIG. As the direction, as shown by the arrow in FIG. 6, when the object is arranged so as to have the least resistance when moving forward, it is possible to prevent the object to be stirred from sticking.

Further, regarding the shape of the outer stirrer frame 35 constituting the second embodiment of the present invention, FIG.
3 and B and C are shown, and in particular, in B and C, the scraping blade 10 is also intended to be attached in addition to preventing the entrainment. In addition, FIG. 4 includes a diagram showing the relationship between the stirrer frame 5, the stirring bar 6, and the oblique shaft 4.
The concept of the stirrer frame 5, the stirring bar 6, and the oblique shaft 4 shown in the first embodiment can be applied to the second embodiment as it is. In addition, although not specifically described, the scraper blades 5 are attached to the outer stirrer frame 35 instead of the stirrer frame 5, but can be considered the same as in the first embodiment.

The oblique shaft stirrer according to the present invention is configured as described above, and its operation will be described below.

In the oblique-axis stirrer of the second embodiment, the outer stirrer frame 35 which rotates independently of the rotation of the stirrer frame 5 outside the stirrer frame 5 is provided. The entrainment of the stirrer can be prevented, and the stirrer can be more effectively stirred even if there is a large amount of solids contained in the food of the stirrer placed in the cylindrical container 1.

Further, since the outer stirrer frame 35 can rotate independently without being related to the stirrer frame 5, the outer stirrer frame 35 can be rotated reversely or rotated at a different rotation speed, so More effective rotation can be prevented.

Lastly, in the first embodiment, the steam chambers 13a, 13b, and 13c are formed in three upper and lower stages.
The steam chamber may be divided into upper and lower two stages or one steam room,
Depending on the number of steam chambers 13a, 13b, 13c, steam supply pipes 15a, 15b, 15c and valves 14a, 14b, 1
4c can be changed as appropriate, and the steam chambers 13a, 13c are used only for the object to be stirred which does not require heating.
The heating means such as b and 13c may be omitted, which means that the steam chambers 13a and 13c shown in the first embodiment may be omitted.
b, 13c, valves 14a, 14b, 14c and steam supply pipe 1
It can be applied to the second embodiment together with the contents of 5a, 15b, and 15c. The oblique shaft stirrer of the present invention is not limited to bean jam and can be widely used in the production of various foods such as seasoned miso, mayonnaise and gratin.

[0036]

As is clear from the above description, the present invention has the following advantages. 1. By rotating the stirrer frame, a plurality of stirring rods disposed on the stirrer frame are integrally rotated, and the stirring rod intersects obliquely with the extension of the axis of the oblique axis, thereby being covered with the stirring rod. While dividing the agitated product vertically and horizontally, while increasing the fluidity,
The stirrer rod is rotated while further changing the angle of the stirrer rod with respect to the horizontal plane by the inclination of the oblique axis, so that the entire area of the object to be stirred is 3
Stirring and mixing in a dimensional trajectory. In this case, the rotation of the stirrer frame causes the stirring rod to form an oblique lattice and stir and mix the object to be stirred.

2. The object to be stirred is stirred and mixed against the gravity, and even when heating and stirring the object with high viscosity, the object to be stirred co-rotates with the outer stirrer frame, the stirrer frame and the stirring rod. Without stirring, mixing and mixing can be performed reliably. Therefore, by rotating the stirrer frame and the stirring rod at a low speed, the object to be stirred can be efficiently stirred and mixed in a short time, and the deterioration thereof does not easily occur. In particular, by connecting the outer stirrer frame and the stirrer frame to different electric motors to change the rotation speed or to rotate them in opposite directions, the co-rotation is completely prevented.

3. The shape lacking a part of the ring
By rotating the agitator frame that is asymmetric with the extension of the axis of the oblique axis, the fluidity in the cylindrical container is increased, and the flow contributes to the agitation. 4. The cross-section of the stirrer frame or outer stirrer frame is circular, elliptical, rectangular, or rhombic, and as a direction, when proceeding forward, by arranging it with the least resistance, the attached matter is fixed. Is prevented.

5. When the shape of the cross section of the stirring rod is a circle or an ellipse, even if the object to be stirred is a food containing solid matter,
Stirring and mixing of the object to be stirred can be performed while preventing the destruction of the solid matter, and when the stirrer bar is installed obliquely with a flat steel plate on the stirrer frame, the solid matter in the object to be stirred is stirred by the stirrer bar. Was shredded and the fluidity in the cylindrical container was increased, so that stirring and mixing became possible.

6. At several places under the stirrer frame,
By installing the scraping blades, the entire inner surface of the hemispherical bottom of the cylindrical container can be rubbed by rotation of the stirrer frame, and the object to be stirred near the bottom can be sufficiently stirred. However, it has become possible to prevent sticking to the inner surface of the bottom and burning.

[Brief description of the drawings]

FIG. 1 is a side view including a longitudinal sectional view of a part of an oblique shaft stirrer according to a first embodiment of the present invention.

FIG. 2 is a view showing another support portion below the stirrer frame of the oblique shaft stirrer shown in FIG. 1;

FIG. 3 is a view showing an attached state of a stirring rod to a stirrer frame of the oblique shaft stirrer shown in FIG. 1;

FIG. 4 is a view showing a relationship between a stirrer frame, a stirring rod, and a skew axis of the skew axis stirrer shown in FIG. 1;

FIG. 5 is a diagram showing a relationship among an outer stirrer frame, a stirrer frame, a stirrer, and an oblique axis of an oblique shaft stirrer according to a second embodiment of the present invention.

6 is a diagram showing the cross-sectional shapes of the stirrer frame of the oblique shaft stirrer shown in FIGS. 1 and 4 and the outer stirrer frame of the oblique shaft stirrer shown in FIG. 5;

FIG. 7 is a side view including a vertical sectional view of a part of a conventional oblique shaft stirrer.

[Explanation of symbols]

 1 · · · cylindrical container 1a · · · bottom 2 · · · mounting base 3 · · · electric motor 3a · · · rotating shaft 4 · · · inclined shaft 5 · · · stirrer frame 5a · · · · String 6 ··· Stirrer bar 7 ··· Bearing member 8 ··· Mounting tube 9 ··· Support shaft 10 ··· Scraping blade 10a ·· Split piece 11 ··· Fixed lid 12 · ··· Opening and closing lid 13a ··· Steam room 13b ··· Steam room 13c ··· Steam room 14a ··· Valve 14b ··· Valve 14c ··· Valve 15a ··· Steam supply pipe 15b ··· Steam supply pipe 15c ··· Steam supply pipe 16 ... Support 17 ... Discharge valve 35 ... Outer stirrer frame 37 ... Oblique shaft 55 ... Stirrer frame 56 ... Stirrer bar p ... Center

Claims (7)

[Claims] An oblique shaft (4) driven by an electric motor (3) is inserted obliquely from above the cylindrical container (1) into a cylindrical container (1) having a hemispherical bottom (1a). A stirrer frame (5) is fixed to the lower end of the oblique shaft (4), and a portion of the diameter of the stirrer frame (5) is defined as an extension of the axis of the oblique shaft (4). At the same time, the lower part of the stirrer frame (5) is brought close to and along the bottom (1a) of the cylindrical container (1).
An oblique shaft stirrer characterized in that one or a plurality of stirring rods (6) are arranged on a portion of the stirrer frame (5) having a shape lacking a part of a ring. 2. The stirrer frame (5) provided with one or a plurality of stirrers (6) has an area of a part of an annular shape lacking an annular area. 5 compared to
The oblique stirrer according to claim 1, wherein the amount is 5% to 90%. 3. The shape of a cross section of the stirring rod (6) is a circle, an ellipse, or a rectangle.
Or the oblique shaft stirrer according to claim 2. 4. When the shape of the cross section of the stirring bar (6) is rectangular, the inclination of the stirring bar (6) is set to 5 degrees to 60 degrees with respect to the surface of the stirring bar frame (5). The oblique stirrer according to claim 3, wherein the stirrer is a stirrer. 5. An outer stirrer frame (35) that rotates independently of rotation of the stirrer frame (5) is provided outside the stirrer frame (5). An oblique stirrer according to any one of claims 1 to 4. 6. The oblique stirrer according to claim 5, wherein the rotation direction of the outer stirrer frame (35) is opposite to the rotation direction of the stirrer frame (5). . 7. In the case of the structure of only the stirrer frame (5), in the case of the structure of the stirrer frame (5) and the outer stirrer frame (35) below the stirrer frame (5). At the bottom of the outer stirrer frame (35),
The hemispherical bottom (1) of the cylindrical container (1)
The oblique shaft stirrer according to any one of claims 1 to 6, wherein a) one or more scraping blades (10) in contact with the inner surface are provided.