JPH0642743Y2 - Eddy current type pulverizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention is directed to a strong vortex between a stirring plate that rotates at a high speed around a vertical axis and a liner that is provided close to the circumferential cylindrical surface of the stirring plate. "Prior Art" Concerning Eddy Current Type Fine Crusher for Generating Fine Particles of Cereals and the Like by Using a Conventional Vortex Flow Fine Crusher as shown in FIG.
In the central part of the, a rotary shaft 2 in which a large number of rotating discs 3 are arranged in the vertical direction, and a plurality of stirring plates 4 provided in the circular tip of the rotating disc 3 so as to penetrate in the vertical direction, A liner 5 having a groove or the like formed on the inner surface is provided on the orbiting cylindrical surface of the stirring plate 4, and an air tight plate 7 having a vent hole 6 at the center is provided above the inside of the body 1. An exhaust chamber 8 was provided on the upper surface of the air blocking plate 7, and an upper fan 9 was provided.

"Problems to be solved by the invention" However, in such a conventional vortex type fine pulverizer,
A large amount of fine particles in the air are accumulated on the direction change point of the air flow, for example, on the inner surface a of the air blocking plate 7 in FIG. There are problems that it solidifies as it is, then peels off and mixes into the fine powder, and that the flow of the air flow is obstructed to reduce the efficiency of the machine.

The present invention has been made by paying attention to such problems in the conventional technology.There is no place where fine powder is deposited inside the body, and solidified powder is mixed with the fine powder and discharged, or It is an object of the present invention to provide a vortex type fine pulverizer which does not impede the flow and reduce the efficiency.

"Means for Solving the Problem" The gist of the present invention for achieving such an object is to provide a cylindrical body having an upper portion covered with a flat ceiling plate, and supporting the body at a base, A rotating shaft rotatably rotatably pierced through the center of the body, the base having an introduction cavity for introducing the object to be crushed into the body and feeding the crushed body to the inside of the body; From the lower surface of the ceiling plate inside the upper and lower bodies to right above the base part, a plurality of rotating plates are arranged side by side vertically, passing through the tip of each rotating disk in the radial direction. A stirrer plate is attached, and a liner engraved with dies or the like for finely pulverizing the material to be radiated by the swirling action of the stirrer plate is provided around the body in the vertical direction so as to correspond to the stirrer plate. , A vortex consisting of a discharge port on the upper part of the body for discharging the generated fine powder Resides in Shikibi grinder.

"Action" The object to be crushed sent from the base to the inside of the body is strongly ejected outward by the stirring plate rotating at high speed. Then, it is strongly struck against the inner surface of the liner having a circular cylindrical surface of the stirring plate and having a groove or the like formed on the surface, and is pulverized while repeating the rubbing action.

Inside the body, an upward air flow is generated by the fan provided on the lower surface of the lowermost rotating disk and the fan action generated by the high speed rotation of the stirring plate, and the generated powder rises on this upward air flow. Then, it is discharged to the outside through the discharge port at the top.

There is no air flow stagnant inside the body, the cylindrical liner extends all the way up the body, and a stirring plate that rotates at high speed close to the inner surface of the liner is also provided close to the ceiling plate. Therefore, there is no place where the powder is deposited, and therefore the solidified powder is not peeled off, and the air flow is not obstructed to reduce the processing capacity of the machine.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention.

The vortex type fine pulverizer 10 is provided in a cylindrical body 11 with a stirring plate 13 that rotates at a high speed together with a rotating shaft 12 and an orbiting cylindrical surface of the stirring plate 13. And a liner 14 that

The bottom of the body 11 is a bottom plate 15, and a center hole 16 for receiving the object to be crushed is opened in the center.

The base of the body 11 is connected to the base 17 and the base 17
Is a hopper that extends to the side and puts the material to be crushed into the part.
An air intake 20 provided with 18 and an air filter 19 is provided. Then, following this air intake port 20, a conduction path 21 for guiding the object to be ground together with air is provided,
A damper 22 for adjusting the intake air amount is provided in the middle of the conduction path 21.
Is provided. Further, inside the base portion 17, the central hole of the body 11 is communicated with the conduction path 21 to receive the object to be crushed.
An introduction cavity 23 that is fed from 16 into the body is formed.

The rotary shaft 12 penetrates a partition plate 24 of the introduction cavity 23, and penetrates a flat ceiling plate 25 of the body 11 at the upper side, and is pivotally supported by bearings 26 and 27. One end is connected to the drive motor 28.

A large number of rotating discs 29 are fixedly installed on the rotating shaft 12 at regular intervals, and the stirring plate 13 is vertically inserted into the rotating discs 29 by penetrating the circular tips of the rotating discs 29. The direction of the plate is the radial direction of the rotating disc 29.

A fan for sucking up the object to be crushed from the inside of the introduction cavity 23 of the base 17 on the lower surface of the lowermost disk 29a of the rotating disk 29.
30 are provided.

On the other hand, the rotating disc 29 located at the top of the rotating discs 29
b is provided close to the lower surface of the flat ceiling plate 25 as shown in the drawing, and the upper end portion of the stirring plate 13 also extends the full length of the body 11 so as to sweep the lower surface of the ceiling plate 25. The corresponding liner 14 is also provided up to a position in close contact with the lower surface of the ceiling plate 25 of the body 11. A discharge port 31 for discharging the powder to the outside is provided at the uppermost portion of the side wall of the body 11.

Next, the operation will be described.

The drive motor 28 is started to drive the rotary shaft 12. In this embodiment, when driven at a rotation speed of about 5000 RPM, the outer peripheral speed of the stirring plate 13 becomes a high speed of about 120 meters per second. Since the stirring plate 13 is oriented in the circumferential direction, the air in the body 11 is strongly oriented outward, and the fan 30 sucks air from the center hole 16 of the bottom plate 15, so that it merges with these air and is violent. An updraft is generated and blown out from the outlet 31.

The ascending airflow takes in a large amount of air from the air intake port 20, and the conduction path 21 of the base 17 becomes a high-speed airflow and is an introduction cavity.
Enter within 23. Then, when crushed substances such as soybeans are fed from the hopper 18, these crushed substances are introduced into the introduction cavity 23 together with the airflow, and enter the body 11 through the center hole 16.

The object to be crushed that has entered the body 11 is repelled by the fan 30 and collides with the liner 14, is repelled by the stirring plate 13 and is hit back by the liner 14 again, rising and in the circumferential direction, centrifuging and centripetal. Rubbing on the surface of the liner 14 while repeating complicated and intense exercises such as. Since the surface of the liner 14 is engraved on the surface of the liner, it is crushed into fine particles during repeated vigorous rubbing and striking motions, and finally becomes a fine powder. Sent to the department.

When the amount of intake air is too large and the generated powder becomes coarse during the above operation, the damper 22 provided in the conduction path 21 is adjusted to soften the air flow.

Inside the body 11, the liner 14 is fully filled until it comes into close contact with the ceiling plate 25, and the stirring plate 13 is also provided in close proximity to the ceiling plate 25 so that the powder is deposited. There are no points, therefore, the powder does not solidify, and the solidified powder is not mixed with the differential body and discharged.

[Advantage of device] According to the vortex type fine crusher according to the present invention, a liner for rubbing and crushing is put in a cylindrical body until it comes into close contact with a flat ceiling plate, and the liner is placed close to the liner. Since the stirring plate that revolves around is also provided with the upper end portion close to the ceiling plate, there is no place for the generated fine powder in the body, and therefore the powder solidifies or the solidified powder that has fallen off is a fine powder. It is not mixed with and discharged to the air and does not interfere with the air flow to reduce the processing efficiency.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an eddy current type fine pulverizer showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view of a conventional eddy current type fine pulverizer. 10 ... Eddy current type pulverizer 11 ... Body, 12 ... Rotating shaft 13 ... Stirring plate, 13a ... Stirring plate upper end 14 ... Liner, 17 ... Base part 18 ... Hopper, 20 ... Air intake 21 ... Conducting path, 22 … Damper 23… Introductory cavity, 25… Ceiling plate 26, 27… Bearings, 29… Rotating disc 29b… Top rotating disc 30… Fan, 31… Discharge port

Claims (1)

[Scope of utility model registration request] 1. A base having a cylindrical body whose upper part is covered with a flat ceiling plate, and an introduction cavity which supports the body at a base and introduces a substance to be crushed into the interior of the body. A rotation shaft that includes a base portion and is rotatably supported by penetrating the center portion of the body, and extends from near the lower surface of the ceiling plate inside the body on the rotation shaft to directly above the base portion. Up to a plurality of rotating plates are arranged side by side up and down, and a stirring plate that passes through the circular tip of each rotating disk and is oriented in the radial direction is attached, and the crushed object radiated by the vortex action of the stirring plate is finely divided. A liner engraved with dents and the like is formed so as to fully surround in the up-down direction corresponding to the stirring plate on the inner circumference of the body, and on the upper part of the body,
A vortex type fine pulverizer provided with an outlet for discharging the generated fine powder.