JPH048097B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an apparatus for mixing and stirring fluid contents such as liquids and powders.

[Prior art] Conventionally, for example, devices for stirring fluids were
Generally, a rotary blade was provided in a bottomed cylindrical stirring tank to rotate the contents, as shown as an example in Publication No. 40339.

[Problems with the prior art] However, if a rotary blade is rotated in a tank as in the past to stir things that have cell membranes, or things that have a skin such as grains or eggs, the rotation using the device is difficult. There was a risk that the contents would be damaged due to stirring, such as the destruction of cell membranes due to collisions with the blades.

Further, since the rotating blades are easily worn out due to friction with the contents, there is a risk that impurities may be mixed into the contents, which is undesirable in some cases.

[Object of the Invention] Therefore, the present invention aims to provide an apparatus and method that can efficiently stir the contents without using rotating blades and without damaging the contents.

[Means for achieving the object] In order to achieve the above object, the stirring device of the present invention has the following features:
A vibration table is supported on a base via several coil springs, and weights are eccentrically attached to the upper and lower ends of a rotating shaft that is vertically supported at the center of the vibration table. A cylindrical stirring tank made of a corrugated plate having a circumferential wall with a large number of parallel uneven stripes inclined in the circumferential direction is supported so as to rotate in a horizontal plane concentrically with the rotating shaft. It is.

In addition, the stirring method of the present invention involves supporting a vibration table on a base via several coil springs, and attaching weights eccentrically to the upper and lower ends of a rotating shaft that is vertically supported at the center of the vibration table. A cylindrical stirring tank made of a corrugated plate having a circumferential wall with a large number of parallel uneven stripes inclined in the circumferential direction is supported on the vibration table so as to rotate in a horizontal plane concentrically with the rotating shaft. In this stirring device, the content in the stirring tank is rotated in a horizontal plane by adjusting the mounting angle of both of the weights with respect to the rotating shaft, and the stirring tank is rotated at a low speed in the opposite direction to the rotational direction of the contents. The feature is that it rotates.

[Operation] By rotating the rotating shaft, the stirring tank is vibrated and the contents in the stirring tank are rotated. At the same time, the stirring tank is rotated in the opposite direction, so the outer circumference inside the stirring tank is rotated. The contents are guided by the uneven stripes of the corrugated plate on the surrounding wall and move upward or downward, thereby stirring the contents evenly throughout the tank.

[Example] Next, an example of the present invention will be described with reference to the drawings.
In this embodiment, the contents can be stirred while being heated or cooled from the outside.

In the figure, 1 is a cylindrical base, 2 is a plurality of coil springs provided at intervals on its upper surface, and 3 is a vibration table supported on the coil springs. An electric motor 6 is fixed vertically inside the vibration table 3 with a mounting rod 7, and a pair of weights 9, 9 are attached to eccentric positions of a rotating shaft 8 of the electric motor 6 that protrudes both upward and downward. are attached so that the relative attachment angle of the two can be changed. A stirring tank 4 is provided on the vibration table 3 so as to be concentric with the rotating shaft 8 and rotatable in a horizontal plane. That is, the annular holder 10 is fixedly installed on the vibration table 3, and the annular holder 1
A bushing 11 is provided on the outer peripheral surface and upper surface of 0,
A cylindrical leg 5 fixedly installed under the stirring tank 4 is brought into contact with the bush 11 so as to be able to freely slide, and a lower edge flange portion of the cylindrical leg 5 is held down by a stopper 12. A pulley 13 is fixed on the outer periphery of the cylindrical leg 5, and a small motor 14 is fixed on a part of the vibration table 3.
The pulley 15 of the small motor 14 and the pulley 13
By wrapping an endless belt 16 around the stirring tank 4, the stirring tank 4 can be rotated in a horizontal plane by the power of the small motor 14. The stirring tank 4 has a cylindrical shape with a bottom, and its peripheral wall 4a is made of a corrugated plate and has a large number of parallel uneven stripes inclined at about 60 degrees in the circumferential direction. Since the peripheral wall 4a is made of a corrugated plate having a constant thickness, uneven lines appear on the inner and outer sides, such that where the inner side has grooved lines, the outer side has convex lines. A valve 18 is provided at the tip of a discharge pipe 17 extending from the lower end of the stirring tank 4 . Reference numeral 19 denotes a heat-insulating enclosure surrounding the stirring tank 4 with a gap 20 in between, and the enclosure 19 is provided with an inlet 21 and an outlet 22 for the cooling medium. and the enclosure 19
The wall of the container itself is filled with a heat insulating material 23.
Reference numeral 24 denotes a lid detachably placed over the opening at the upper end of the stirring tank 4.

In the device configured in this way, when the content is stored in the stirring tank 4 and the weights 9, 9 are rotated by the drive of the electric motor 6, the vibration table 3 vibrates due to the unbalance of the rotating shaft 8, causing the stirring tank 4 to vibrate. vibrate. Therefore, the contents of the stirring tank 4 rotate within the stirring tank 4. This direction of rotation can be changed by adjusting the relative attachment of the weights 9, 9 to the rotating shaft 8, but if the contents are now rotated counterclockwise as shown in FIG. The stirring tank 4 is driven by a small motor 14.
Rotate in the opposite clockwise direction at a low speed of about 5 to 10 rpm. Then, the contents near the outer periphery of the lower part of the stirring tank 4 rise spirally along the uneven lines of the peripheral wall 4a, and the contents that reach the upper part rotate toward the center and gradually descend. Then, when it reaches the bottom, the contents rotate toward the outer periphery of the lower part, and rise again in a spiral along the uneven shape of the peripheral wall 4a. Therefore, the contents circulate throughout the stirring tank 4 evenly.

If cooling water or cooling oil is supplied from the inlet 21 into the space 20 during this stirring, the stirring tank 4 can be cooled and the contents can be mixed and stirred at a low temperature, thereby eliminating the disadvantage of temperature rise due to stirring. If a high-temperature medium such as hot water or heated oil is passed through the gap 20, the contents can be stirred in a heated state, thereby promoting, for example, melting, permeation, or reaction of the contents. Note that since the peripheral wall 4a made of a corrugated plate has a larger surface area than a flat plate, heat transfer is very good, and heat exchangeability with the cooling medium in the interval 20 is good.

[Effects of the Invention] As described above, since the stirring device of the present invention stirs the contents without using a rotating blade, there is no risk of damaging the contents due to collisions, etc., and there is also no risk of foreign matter being mixed in due to wear of the rotating blades. Not at all. Also,
In the stirring method of the present invention, the contents are rotated in a stirring tank, and the stirring tank itself is rotated on a vibration table in the opposite direction to the contents, and the stirring tank has many parallel walls. In combination with the fact that the concavo-convex strips connected to the tank are made of a corrugated plate that is inclined in the circumferential direction, the contents are moved upward or downward, which has the beneficial effect of uniformly stirring the entire inside of the tank.

[Brief explanation of drawings]

The drawings show one embodiment of the stirring device of the present invention, and FIG. 1 is a longitudinal sectional view of the entire device, FIG. 2 is a sectional view taken along line A-A, and FIG. 3 is a perspective view of the stirring tank. be. DESCRIPTION OF SYMBOLS 1... Base, 2... Coil spring, 3... Vibration table, 4... Stirring tank, 4a... Peripheral wall, 5... Cylindrical leg, 6... Electric motor, 8... Rotating shaft, 9... Heavy weight,
10...Circular receiver, 11...Butsuyu, 13...
Pulley, 14...Small motor, 15...Pulley,
16... Endless belt.

Claims (1)

[Claims] 1. A vibration table is supported on a base via several coil springs, and weights are eccentrically attached to the upper and lower ends of a rotating shaft that is vertically supported at the center of the vibration table. A cylindrical stirring tank made of a corrugated plate having a circumferential wall with a large number of parallel concavo-convex strips inclined in the circumferential direction is supported on the vibrating table so as to rotate in a horizontal plane concentrically with the rotating shaft. A stirring device that is characterized by: 2. A vibration table is supported on a base via several coil springs, and weights are eccentrically attached to the upper and lower ends of a rotating shaft supported perpendicularly to the center of the vibration table. In the stirring device, a cylindrical stirring tank made of a corrugated plate having a peripheral wall with a large number of parallel concavo-convex stripes tilted in the circumferential direction is supported so as to rotate in a horizontal plane concentrically with the rotating shaft. By adjusting the mounting angle of both weights with respect to the rotating shaft, the contents in the stirring tank are rotated in a horizontal plane, and the stirring tank is rotated at a low speed in the opposite direction to the rotation direction of the contents. Characteristic stirring method.