JP3550635B2 - Powder kneading equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a powder / granule kneading apparatus for kneading two types of powder and granules, coating the surfaces of the granules with the powder, and modifying the surfaces of the granules.
[0002]
[Prior art]
Conventionally, as a powder-grain kneading apparatus for coating powder on the surface of a granule as described above, two pressure rolls that rotate and revolve because the powder is coated on the surface of the granule, Is generally used, provided with an inside plow and an outside plow that rakes the roller onto the orbit of the pressure roll.
In such a powder and particle kneading apparatus, the discharge port for discharging the raw material after kneading is provided on the orbit of a pressure roll to which the raw material is scraped so that the raw material can be quickly discharged, and is closed by an opening / closing lid. It is common.
[0003]
[Problems to be solved by the invention]
In the powder and particle kneading apparatus as described above, since the pressure roll passes through the upper part of the raw material discharge port, the opening / closing lid is pressed by the pressure roll, so that a lock mechanism is provided to compensate for this. There was a problem that measures such as mounting were taken, the structure was complicated and rigid, and the manufacturing cost was high.
In order to solve this problem, it is conceivable to move the discharge port of the raw material to a position deviated from the orbit of the pressure roll. However, in this case, there has been a problem that the discharge speed of the raw material is reduced or the discharge remains.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a powder and particle kneading apparatus provided with a pressure roll, the pressure of the pressure roll is not applied to the discharge port of the raw material, and the discharge of the raw material is quickly performed. It is an object of the present invention to provide a kneading device for powdery and granular materials which can be used.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the powder and particle kneading apparatus according to the present invention comprises a kneading tank formed by a cylindrical side wall and a disc-shaped bottom plate, in which two pressure rolls are supported by a rotating shaft and a rotating support. An inside plow is provided for rotatably arranging the same orbit through the body and revolving forward, and in front of the rotation of one of the pressure rolls, for scraping the material inside and outside the orbit into the orbit. In a powder and particle kneading apparatus in which an outside probe for scraping a material on the outer side of the revolving orbit into the revolving orbit is disposed in front of the rotation of the other pressure roll via a rotating support, the discharge port for the raw material is connected to the above-described outlet. The pressure roll revolving orbit is disposed outwardly of the orbit, and extends outward from the center of the revolving orbit at a position between the rotation rear of the one pressure roll and the rotation front of the outside probe, and has an angle. Approach angle to orbital direction The composed auxiliary probe is characterized in that attached via the rotary support.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a kneading tank formed of a cylindrical side wall 1A and a disc-shaped bottom plate 1B and formed in a concave cross section, and a driving device (not shown) on the bottom plate 1B of the kneading tank 1. The rotary shaft 2 rotated by is provided through.
A rotary support 3 is fixed at a position in the kneading tank 1 on the rotary shaft 2, and pressure rolls 4, 4 A having a predetermined width form a pair at a facing portion of the rotary support 3 in a vertical direction. It is provided so as to be able to rotate (self-rotate). Accordingly, the pressure rolls 4 and 4A draw a revolving orbit 5 having a constant width (same as the roll width) by the rotation of the rotation shaft 2.
At the bottom plate 1B of the kneading tank 1, a circular outlet 6 is provided at a position outside the orbit of the revolving orbit 5 and an O-ring seal 7 is embedded in the outlet 6 so that the lid 8 is closed. Airtightness is kept when This airtightness prevents air leakage when the inside of the kneading tank 1 is pressurized with compressed air or suction is performed, and the effect can be exhibited by making the discharge port 6 circular. ing.
[0006]
Further, an inside probe 9 for scraping the material on the inside of the revolving orbit 5 toward the center of the revolving orbit 5 is positioned on the rotary support 3 in front of one pressure roll 4 (front side in the revolving direction). The outside blower 10 that is attached and scrapes the raw material on the outer side of the revolving orbit 5 to the center of the revolving orbit 5 is mounted with the outside probe 10 positioned in front of the other pressure roll 4A (the front side in the revolving direction). I have.
An auxiliary probe 11 is attached to the rotary support 3 behind the one pressure roll 4 and in front of the outside probe 10. The auxiliary probe 11 is attached to the center of the revolving orbit 5. And is supported by being inclined at an angle which becomes an approach angle with respect to the revolution direction.
The entry angle may be any as long as the kneaded raw material can be guided to the outlet 6. Particularly, if the angle is in the range of 15 to 45 degrees, the raw material can be easily guided.
In the figure, reference numeral 12 denotes a side scraper for scraping off the raw material attached to the side wall 1A.
[0007]
When the kneading raw material charged into the kneading tank 1 is kneaded, the pressure rolls 4 and 4A, the inside probe 9, the outoid probe 10, the auxiliary probe 11 and the like are rotated by the rotary shaft 2 and the like. It is revolved through the rotation support shaft 3.
By this rotation, the kneading raw materials inside and outside the orbit 5 of the pressure rolls 4 and 4A are guided and kneaded by the inside rollers 9 and the outside probe 10 to the center of the orbit 5 while being kneaded by the pressure rolls 4 and 4A. The surface of the granules is coated with powder. At this time, since the discharge port 6 does not receive the pressure of the pressure rolls 4 and 4A, it is not necessary to make the lid 8 strong. After the kneading is continued in this manner, the lid 8 of the discharge port 6 is opened, and the kneaded raw material in the orbit 5 is scooped up by the auxiliary probe 11 and guided in the direction of the opened discharge port 6 for a short time. It is discharged within.
[0008]
【The invention's effect】
As is clear from the above description, the present invention provides a powder kneading apparatus using a pressure roll, wherein a discharge port is provided on the outer side of the orbit of the pressure roll on the outer side thereof, and at the rear of one pressure roll and An auxiliary probe that extends outward from the center of the orbit and extends outward from the center of the orbit and has an angle of approach in the revolving direction is positioned in front of the outside probe, so the discharge port does not receive the pressure of the pressure roll. At the same time, the material is discharged within a short time. Further, by setting the angle of entry of the auxiliary probe in the range of 15 to 45 degrees, the discharge of the raw material can be further facilitated, and the airtightness of the kneading tank can be enhanced by making the shape of the discharge port circular. And so on.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Kneading tank 1A Side wall 1B Bottom plate 2 Rotating shaft 3 Rotating support 4 4A Pressurizing roll 5 Revolution orbit 6 Outlet 9 Inside probe 10 Outside probe 11 Auxiliary probe

Claims (3)

In a kneading tank 1 composed of a cylindrical side wall 1A and a disc-shaped bottom plate 1B, two pressure rolls 4 and 4A are formed on the same orbit 5 through a rotary shaft 2 and a rotary support 3. An inside probe 9 is disposed so as to be able to revolve, and in front of the rotation of one of the pressure rolls 4, an inside probe 9 for scraping the raw material inside and outside of the orbital track 5 into the orbital track 5. In the powder and particle kneading apparatus in which an outside probe 10 for scraping the raw material on the outer side of the orbit 5 into the orbit 5 in front of the rotation of 4A is disposed via the rotary support 3, the discharge port 6 of the raw material is A central portion of the orbital revolving track 5 is disposed on the outer side of the revolving orbits 5 of the pressure rolls 4 and 4A at a position between the rearward rotation of the one pressure roll 4 and the frontal rotation of the outside probe 10. Extends outward and outward at an angle Granular material kneading device according to claim auxiliary probe 11 is made to approach angle that is attached via the rotation support member 3. The powder and particle kneading apparatus according to claim 1, wherein the approach angle of the auxiliary probe 11 is set to 15 to 45 degrees. The apparatus according to claim 1 or 2, wherein the outlet (6) is formed in a circular shape.

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