JPH09108556A - Agitation-mixing apparatus for powder-grane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To agitate and mix powder-grain adequately in a short time even when they are of a large quantity and viscous. SOLUTION: A gear box 4 is installed to be fixed at the upper end of a hollow shaft 2 which is pivoted horizontally rotatably by being made to penetrate vertically at the center of the bottom part of a fixed container 1, and a vertical shaft 5 the end of which projects into the gear box 4 is pivoted horizontally rotatably in the hollow part of the shaft 2. Moreover, a horizontal shaft 14 having agitation blades 15 is projected horizontally by being pivoted vertically rotatably from the inside to the outside in the gear box 4, and the vertical shaft 5 and the horizontal shaft 14 are connected through gears 16, 7 in the gear box 4 to make the vertical driving rotation of the horizontal shaft 14 possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for stirring and mixing various powders and granules. More specifically, the present invention relates to a stirring / mixing device that stirs and mixes a powder or granular material put into a fixed container by rotating a stirring blade provided in the container by a driving device.

[0002]

2. Description of the Related Art Conventionally, as a device for agitating and mixing various powders and granules, the powder and granules are put into a fixed container, and a stirring blade provided in the container is horizontally rotated by a driving device to powder the powders. An apparatus for stirring and mixing granules has been used in a wide range of fields because it has advantages such as a simple apparatus structure and an easy environment for mixing such as vacuum, heating, and cooling.

[0003]

However, in the agitating and mixing apparatus described above, when a large amount of powder and granules are agitated and mixed at one time, or when viscous powder and agglomerates are agitated and mixed by using a binder or the like. In this case, the centrifugal force due to the rotation of the stirring blade is less likely to be applied to the powder or granular material. Then, a so-called sliding phenomenon occurs in which the stirring blade rotates without stirring the powder and granules, and a portion that is not stirred and mixed occurs outside the rotation range of the stirring blade inside the container, resulting in defective stirring and mixing. In order to prevent this, it is necessary to use a scraper or the like to scrape the powder or granules in places where the stirring blades cannot reach into the rotation range and carefully stir and mix over a long period of time, resulting in poor productivity. It was a problem. The present invention has been made to solve the above problems, even in a large amount of powdery or viscous powdery particles, it is possible to perform sufficient stirring and mixing in a short period of time. The purpose is to provide a device.

[0004]

In order to achieve the above-mentioned object, in a powder and granular material mixing and mixing apparatus according to the present invention, a hollow shaft is vertically penetrated through the center of the bottom of a fixed container and horizontally supported so as to be rotatably supported. , A gear box is fixedly provided on the upper end of the hollow shaft, and a vertical shaft having a tip projecting into the gear box is horizontally rotatably supported in the hollow portion of the hollow shaft and is internally supported in the gear box. While horizontally supporting the horizontal shaft protruding horizontally from the outside,
A plurality of rows of stirring blades are provided on the horizontal shaft at appropriate intervals, and the vertical shaft and the horizontal shaft are connected via a gear in the gear box so that the horizontal shaft can be vertically driven and rotated. It has a feature.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail with reference to FIGS. Reference numeral 1 denotes a cylindrical container fixed to a frame (not shown). At the center of the bottom of the container 1, a hollow shaft 2 is vertically penetrated and a bearing 3 is supported so as to be horizontally rotatable. A gear box 4 is fixed to the upper end of the hollow shaft 2. Further, in the hollow portion of the hollow shaft 2, a vertical shaft 5 is rotatably supported by a bearing 6 so as to be horizontally rotatable, and the vertical shaft 5 has a gear 7 at an upper end thereof. It projects inside. Gears 8 and 9 are respectively provided at the lower ends of the hollow shaft 2 and the vertical shaft 5, and the gears 8 and 9 mesh with the gears 12 and 13 rotated by the drive devices 10 and 11, respectively. A horizontal shaft 14 that horizontally projects from the inside to the outside is vertically rotatably supported by the gear box 4. A plurality of stirring blades 15 are planted in a plurality of rows on the horizontal shaft 14 at appropriate intervals. Further, the horizontal shaft 14 has a gear 16 at the base end of the shaft in the gear box 4. In the gear box 4, a gear 7 provided at the tip of the vertical shaft 5 and a gear 16 provided at the base end of the horizontal shaft 14 mesh with each other. The scrapers 17 and 18 are attached to the gear box 4.

A process of actually stirring and mixing the powdery particles by using the powdery particle stirring and mixing apparatus will be described. After the powder and granules are put into the container, the hollow shaft 2 is rotated by the drive of the drive device 10 via the gear 12 and the gear 8, and the gear box 4
And horizontal rotation of the horizontal shaft 14 is performed. Drive device 1 at the same time
The vertical shaft 5 is rotated through the gear 13 and the gear 9 by the drive of 1, and the gear 7 is rotated in the gear box 4 to rotate the gear 16 meshing with the gear 7. In this way, the horizontal shaft 14 and the stirring blade 15 connected to the gear 16 rotate in the vertical direction. In this way, the stirring blade 15 imparts a centrifugal force in two directions, that is, horizontal rotation and vertical rotation at the same time, to the granular material. The scrapers 17 and 18 are the stirring blades 13.
The powder and granules that have moved out of the rotation range are scraped into the rotation range of the stirring blade 13 to more effectively stir and mix the powder and granules.

[0007]

As is apparent from the above description, the stirring apparatus for powder and granules according to the present invention rotates the stirring blade horizontally in the container and at the same time, rotates the stirring blade in the vertical direction, so that the powder and granules can be vertically and horizontally. Since the centrifugal force in the two directions is applied to perform efficient stirring and mixing, it is possible to perform sufficient stirring and mixing even in a large amount of powdery or viscous particles in a short time, improving productivity. To help.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of a powder / granule stirring / mixing device showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

[Explanation of Codes] 1 Container 2 Hollow Shaft 4 Gear Box 5 Vertical Axis 14 Horizontal Axis 15 Stirring Blade

Claims (1)

[Claims] 1. A hollow shaft 2 is vertically passed through the center of the bottom of a fixed container 1 and horizontally supported so as to be rotatable, and a gear box 4 is fixedly mounted on the upper end of the hollow shaft 2. A vertical shaft 5 having a tip projecting into the gear box 4 is horizontally rotatably supported in the hollow portion of the second shaft, and a horizontal shaft 14 horizontally projecting from the inside to the outside is vertically rotated in the gear box 4. The horizontal shaft 14 is rotatably supported, and a plurality of stirring blades 15 are provided on the horizontal shaft 14 at appropriate intervals so that the vertical shaft 5 and the horizontal shaft 14 have gears 16 and 7 in the gear box 4. Horizontal axis 1 connected via
4. A powder / granule stirring / mixing device characterized in that 4 can be driven and rotated vertically.