JPH03151034A - Emulsifying and dispersing device - Google Patents

Abstract

PURPOSE:To improve the efficiency of emulsification and dispersion by forming a pump operating chamber in the intermediate part of the spacing part between the shaft cylinder of spiral vane pieces formed on the peripheral surface of a turbine and the circular conical wall surface of a stator and cooperating the respective liquid suction operating parts of a volume substitution type and a centrifugal differential pressure type. CONSTITUTION:The turbine 1 is formed with the liquid suction operating part (a) of the volume substitution type and the liquid suction operating part (b) of the centrifugal differential pressure type by projectingly providing plural spiral vane pieces 4 on the peripheral surface of the shaft cylinder 3 of a prescribed height and projecting the lower parts 4b of the respective vane pieces 4 from the lower part of the shaft cylinder 3. The lower part of the stator 2 is formed as a suction port 5a in the lower part and the peripheral wall in the inner intermediate part thereof is formed as the upper circular conical wall surface 6 of a small diameter circumscribing the rotating locus on the outer periphery of the vane pieces 4 of the turbine; further, plural discharge ports 7 which are expanded upward and are spaced from each other are provided in communication with the circular conical wall surface 6 and the front surface. The stator 2 is fixed and the turbine 1 is rotated while the turbine is inscribed with the inner circular conical wall surface 6. As a result, the dispersing and emulsifying efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an emulsifying and dispersing device for liquid agents in the fields of chemical products, foods, pharmaceuticals, cosmetics, and the like.

BACKGROUND OF THE INVENTION Emulsifying and dispersing devices of this kind in combination with a fixed stator and a rotating turbine are already known.

(Problems to be Solved by the Invention) In conventional turbines, spiral blades are generally formed on the circumferential surface of a shaft cylinder (boss), and are provided within the length range of the shaft cylinder to prevent contact rotation with the stator. In general, a pump operating region is defined inside the stator by a shaft cylinder and blades, and the pump operating region forms a volume displacement type liquid suction operating section, so there is a limit to the dispersion emulsification effect. There was a problem in that it was not possible to obtain high-quality products.

(Means for Solving the Problems) In view of the above, the present invention aims to improve the turbine as well as the stator to promote dispersion and emulsification to obtain high-quality products. A plurality of spiral blades are integrally provided on the peripheral surface of the shaft cylinder, and the lower part of each blade is made to protrude from the lower part of the shaft cylinder, thereby forming a volume displacement type liquid suction operating section and a centrifugal differential pressure type liquid suction operation section. The turbine has a suction port at its lower part, its inner intermediate peripheral wall is a conical wall surface with a small diameter at the top circumscribing the rotation locus of the outer periphery of the turbine blade, and the conical wall surface and the upper surface communicate with each other to expand upward. The turbine is characterized in that the stator is fixed and inscribed in the inner conical wall surface of the stator to rotate the turbine.

(Function) In the present invention, the stator (2) is immovably fixed in the processing unit 8, and the turbine (1) connected to the rotating shaft is connected to the conical wall surface (6) in the suction port (5a) of the stator (2).
) and rotate it.

The upper part (4a) of the spiral blade (4) formed on the circumferential surface of the turbine (1) is integrally connected to the axial cylinder (boss) (3), so the upper part (4a) of each blade (4) is A pump operation chamber is formed by dividing the middle of the gap between the conical wall surface (6) of the stator (2) circumscribing the stator (2) and the shaft cylinder (3), and a liquid suction operation section using a volume displacement type by the pump chamber. A, and a centrifugal differential pressure type liquid suction operation part is formed by rotating the lower part (4b) of each wing piece (4) that is released and protrudes from the lower part of the shaft cylinder (3). The cooperation of parts a and b can significantly improve emulsification and dispersion efficiency, and the stator (2)
) is enlarged in the liquid discharge direction to gradually increase the cross-sectional area of the discharge port, thereby increasing the cavity effect due to the difference in liquid flow velocity. ) The shearing action by the rim of the radial rib (8) and the blade (4) also made the treatment effect effective.

(Example) Embodiments of the present invention will be described with reference to the drawings.

Consists of a combination of a turbine (1) and a stator (2),
As shown in FIGS. 2 to 4, the turbine (1) has a plurality of spiral blades (4) integrally formed on the periphery of a shaft cylinder (3) of a predetermined height. The upper half (4a) is the shaft cylinder (3)
However, the lower half part (4b) was made to protrude and be separated from the lower part of the shaft cylinder (3).

As shown in FIGS. 1 and 5, the stator (2) has a suction port (5a) at the bottom and a suction port (5a) at the center of the top.
), and the circumferential wall of the inner middle part of the cylinder (5) is connected to the blade (4) of the turbine (1) shown in FIG. ) has a conical wall surface (6) that coincides with the rotation locus circle (6') on the outer periphery of the conical wall surface (6), and a discharge hole (
A plurality of ribs (7) are arranged surrounding the shaft hole (5b) as shown in FIG.
8) is formed.

Note that the plurality of discharge holes (7) gradually expanded toward the top.

The stator (2) constructed as described above is placed in a processing tank (not shown) as shown in FIG. The turbine (1
) is fixed and rotated with its wing pieces (4) inscribed in the conical wall surface (6).

During the rotation, the upper part (4a) of each blade (4) rotates while forming a pump operating chamber between the inner shaft cylinder (3) and the conical wall surface (6), so the liquid suction operating part is a volume displacement type. a, and at the same time, below it, the lower part (4b) of the wing piece (4) protruding from the lower surface of the shaft cylinder (3)
) causes the centrifugal differential pressure type liquid suction operation part to suction the liquid, and by the cooperation of the two movement parts aSb, the liquid is suctioned and flows from the bottom to the top as shown by the arrow in Figure 1. let

In addition, the liquid is subjected to shearing action due to contact between the wing pieces (4) and the lower ends of the many ribs (8) forming the discharge hole (7), and the discharge hole (7) whose cross-sectional area increases upwardly. Flows smoothly.

In addition, conventionally, when the shaft cylinder part (boss) of the turbine (1) that is attached to the rotating shaft (9) wears out due to contact with the bearing part, the entire turbine has to be discarded. As shown in Figure 1, the shaft cylinder (3) and the sleeve (+21
The sleeve (1) is supported by the submerged bearing member a3 on the inner periphery of the shaft hole (5b), so that only the sleeve ('lb) can be replaced when worn, and the connection of the turbine (1) to the rotating shaft is The key (111) connection is used instead of the conventional screw connection for easy attachment and removal.

In addition, in order to obtain the lowest flow when the minimum amount of charge is used, the turbine (1) can be reversed at this time, and the direction of flow due to the reverse is from top to bottom, and the liquid level is It also becomes possible to perform operations such as suctioning powder, etc. floating in the air downward.

(Effects of the Invention) According to the present invention, the flow range of the liquid can reach a higher viscosity range than before.

The cavitation area was expanded and the micro-stirring force was increased.

By making the blades of the turbine thinner, ultrasonic waves were generated due to micro vibrations in the lower part of the blades that protruded downward from the shaft cylinder, and the resulting micro-agitation force was increased.

The range of use has become even wider.

You can get high quality products.

It has the following effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a cut side view, Fig. 2 is a front view of the turbine, Fig. 3 is a plan view thereof, Fig. 4 is a bottom view of the turbine, and Fig. 5 is a stator. FIG. (1)...Turbine (3)...Shaft cylinder (4a) (4b)...Upper/lower part of blade (5a)...
・Suction port (6)... Conical wall surface (2)... Stator (4)... Wing piece (5)... Vessel cylinder (5b)... Shaft hole (7)... Discharge hole

Claims (1)

[Claims] A plurality of spiral blades are integrally provided on the circumferential surface of the shaft cylinder with a predetermined height, and the lower part of each blade is made to protrude from the lower part of the shaft cylinder. A turbine having a liquid suction operating part, a lower part serving as a suction port, an inner intermediate circumferential wall thereof having an upper small-diameter conical wall surface circumscribing the rotation locus of the outer periphery of the turbine blade, and further communicating with the conical wall surface and the upper surface. The stator is fixed and inscribed in its inner conical wall surface to rotate the turbine. Emulsifying and dispersing equipment.