JPS58210862A - Mobile magnetic field type crushing and mixing processing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a work piece made of a ferromagnetic material is housed together with objects to be processed such as solid particles and liquid in a processing container, and is moved from the outside to the container. The present invention relates to a moving magnetic field type processing apparatus that performs processing such as crushing, mixing, stirring, etc. of a workpiece by applying a magnetic field to cause intense random motion in a working piece.

As this type of moving magnetic field type processing device, Figs.
What is shown in the figure has already been proposed. In the figure, reference numeral 1 denotes a processing container that houses an object 2 to be processed and a number of working pieces 3 made of ferromagnetic material.The container 1 is sandwiched in the center, and above and below it are movable magnetic field generators. 4.5 are arranged facing each other, and the moving magnetic field is φ1. As shown by φ2, they are set in opposite directions. This moving magnetic field generating device 4.5 is well known as a so-called linear motor (hereinafter, the “moving magnetic field generating device” will be referred to as a “linear motor”). Like a rotary core machine, it is constructed by being wound in a coil slot of an iron core 7, and receives power from a power source to generate a moving magnetic field φ1. φ
form 2.

With this configuration, the moving magnetic field φ1. The working piece 3 placed in the magnetic field of φ2 has a moving magnetic field φ1.
An electromagnetic force acts based on the interaction with φ2, which causes a translational force in the direction of the moving magnetic field, a rotational torque that rotates around the floating blade and the center of gravity, and also collision between the working pieces and the collision between the working piece and the container. Due to the collision with the wall surface, etc., the working piece 3 causes a violent random movement, and as a whole, it performs a circulating movement inside the processing container 1 as indicated by an arrow P. Processing operations such as crushing, mixing, and stirring of the object 2 to be processed are performed by the random and circular movement of the working piece.

The movement beam of the working piece 3 in this case is the near motor 4
, 5, and the larger the current passing through the winding 6, the greater the electromagnetic force exerted on the working piece 3. However, it is uneconomical to constantly consume excess power beyond the processing capacity. Therefore, it is desirable to maintain sufficient motion of the working piece with as little power as possible and obtain high processing efficiency.

When the processing container 1 is configured as a rectangular container as shown in Fig. 1, the circular movement of the working piece 3 stops during the operation, and the working piece moves into the container 1.
There is a phenomenon where the linear motor 4.5 stays aligned on the wall facing the linear motor 4.5. After further investigation into this phenomenon, it became clear that the cause was as follows. That is, when observing in detail the movement of the working pieces 3 that circulate along the inner periphery of the processing container l, the working pieces scattered near the linear motor 4 are affected by the moving magnetic field φ1 more than the moving magnetic field φ2, and the iron core surface While being attracted towards , it receives a translational force moving to the left from (electric power). On the other hand, the working piece near the linear motor 5' is strongly influenced by the magnetic field φ2 and moves from left to right while being attracted toward the iron core surface. And moving magnetic field φ1. When it reaches the downstream side of φ2, it collides with the right-angled wall surface of a part of the corner of the processing container l. Here, the working piece that reached a part of the corner first is pushed by the following working piece, and changes its direction due to the rotation of the working piece itself and the repulsion caused by the collision with the wall cfi.
The objects on the lower side of the processing container 1 move upward, and the objects on the upper side move downward, and eventually enter the magnetic field action area of the linear motor on the opposite side and again translate in the direction of the moving magnetic field. However, the change in the direction of motion at the corner part cannot be smoothly performed in the rectangular container shown in FIG. 1, and unless the magnetic field strength of the linear motors 4 and 5 is strong enough, the working piece 3 will be attracted onto the wall of the container. They lined up so that they were on top of each other, and stopped and violet. Rini in this case.

Increasing the current of the amotor 4.5 overcomes the rotational torque acting on the working piece 3, disrupting the alignment of the working piece and causing it to move again, but this is due to the constant force) that handles the magnetic field strength. What you need to do is increase your strength beyond your strength.
This is not a good idea in terms of operating efficiency since it consumes an extra 100 liters of power. Observing from the perspective of the processing operation of a large object to be processed, in the case of the one shown in Fig. 1, the movement of the working piece 3 does not sufficiently reach every corner of the processing container 1. A part of the corner on the upstream side of the moving magnetic field, indicated by A, becomes a blind spot for the circulating movement of the working piece 3, and sufficient processing operations are not performed, and it is seen that a large amount of unprocessed material remains in this part of the corner. This also causes a reduction in processing efficiency such as pulverization. Particularly in the case of crushing, a large amount of coarse powder remains because the crushing has not progressed sufficiently, making it impossible to obtain a crushed product with a uniform particle size.

This invention was made in consideration of the above points, and its purpose is to eliminate the drawbacks of the conventional #C arrangement, to maintain the circular movement of the working piece with as little power as possible, and to avoid creating blind spots in processing operations. An object of the present invention is to provide a moving magnetic field type processing device which is energy saving-oriented and has high processing efficiency.

The purpose of this invention is to cut off some of the corners of the processing container along the circumferential movement of the working piece, and to connect the container wall surface of the part of the corner with an inclined or circular wall surface. This is achieved by configuring the

The present invention will be explained below based on illustrated embodiments.

First, in the embodiment shown in FIG. 3, a part of the corner of the processing container IQ along the circular movement path (arrow P) of the working piece
That is, the upper and lower wall surfaces IA of the container 1 on which the working piece 3 changes its movement direction.

Drop the corners at the four corners where ib intersects left and right fUtl+ml C, I D, and instead create a diagonal wall IE where the interior angles intersect at an obtuse angle of 90 degrees or more between the upper, lower, left, and right walls. It is structured to connect. According to the above configuration, the moving magnetic field φ1. Wall surface IA parallel to φ2.

The working piece 3 that has translated along IB and reached its end is subjected to a moving magnetic field φ1. Wall surface 1 perpendicular to φ2
0.11), it easily flows along the inclined wall surface IE, and its direction of movement can be changed. In this way, the alignment and stagnation phenomenon of the working pieces 3 unlike in the prior art is not observed (and smooth circular movement along the processing container can be maintained).

Further, by removing some of the corners, there is no blind spot for the processing operation of the temporarily processed material 2, and the processing efficiency is significantly increased. Regarding this point, according to the actual machine test results conducted by the inventor, compared to the square container shown in Fig. 1, the initial particle size was 1.19 to 1.4 under the same grinding conditions such as power supply current and grinding time.
When crushed marble of 1+m was crushed, the surface area of the powder per unit X amount of crushed product increased by 24%, and the particle size distribution was 14% by weight of particles of 50011m or more. A good result was obtained in which the amount of carbon dioxide was reduced to only 3.5%. Also, in the test results in which the inclination angle of the inclined wall surface IE was varied, almost the same effect was obtained over a wide range of angles.

FIG. 4 shows a modification of the previous embodiment, in which a part of each corner of the processing container 1 is constructed in such a way that one circular arc-shaped wall surface 1 is connected. In this embodiment, the same structure as shown in FIG. The same effect as the example is obtained, and the same test results as above, ?Jt'
= Powder surface area per unit weight is 2 compared to the one in Figure 1.
The amount of particles with a particle size of 500 μm or more decreased to 5.1% by weight. It has also been confirmed that the same effect can be obtained even if the radius of curvature of the arc-shaped wall surface IF is varied over a wide range.

Next, FIGS. 5 and 6 show an embodiment that is a further development of the above embodiment.
As shown in the figure. This embodiment is designed to minimize the formation of blind spots for the movement of the working piece 3 in the processing container, and the processing container l has a cross-sectional shape along the circular movement path of the working piece 3. It has a parallelogram or rhombus shape, and a portion of each corner is formed into an arcuate wall surface as in FIG. 4. Moreover, the moving value field φ1 of the linear motor 4.5 for this processing container 1ζ. φ2 is the magnetic field movement direction force, X゛processing container 10
) The interior angle is directed from the corner part B forming the hooked angle to the corner part C forming the acute angle. Therefore, the working piece 3 passes evenly through the corner corresponding to part A in Fig. 1 without forming a blind spot, so that the working piece 3 can move smoothly throughout the processing container, and the entire processing container can be moved to every corner within the container. Processing operations will be fully performed. Test results conducted on the processing container shown in Figure 5 show that the surface area per amount of particles with a particle size of 500 μm or more contained in the crushed product can be increased by 37% compared to the one in Figure 1, which improves the crushing effect. A significant improvement was seen. In particular, the embodiment shown in FIG. 6 is constructed by partitioning the processing container along the direction of the moving magnetic field and subdividing it into a plurality of chambers.
The same circular movement of the working piece 3 as shown in FIG. 5' is carried out in each processing chamber 11, and the chances of collision between the object to be processed and the container wall surface are increased accordingly, so that more effective processing operations can be performed. Furthermore, it is also possible to simultaneously perform different processing in each valley processing chamber 11.

As described above, the present invention allows the working piece to circulate within the container much more smoothly than the conventional rectangular container by making only slight changes to the shape of the processing container. There is no blind spot in some corners for operation, and thus the material to be processed in the container can be processed with less power consumption. Processing operations can be performed evenly over M, and processing efficiency can be greatly improved.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of a conventional #41J magnetic field treatment device, Fig. 2 is a sectional view taken along arrow Hn in Fig. 1, and Figs. 3 to 6 are respectively different embodiments of the present invention. FIG. 1: Processing container, IE: j-shaped wall, IF=arc-shaped wall,
2: Workpiece, 3: Working piece, 4° 5: Moving magnetic field generator, φ1. φ2: Moving magnetic fan.

Claims (1)

[Claims] 1) From a processing container containing a large number of working pieces made of magnetic material, and a pair of moving magnetic field generators whose moving magnetic field directions are opposite to each other and which are placed opposite to each other on both sides of the container with the container in the center. Processing operations such as pulverization and mixing of the materials put into the processing container are performed by the circular motion of the working piece, which circulates along the direction of the moving magnetic field within the processing container using electromagnetic force based on the interaction with the moving magnetic field. In an electromagnetic processing device that performs the above-mentioned processing, a part of the corner of the old processing container is placed in the circulating movement path of the working piece, and the container wall surface of the part of the corner is tilted or arcuated. In the processing apparatus according to item 1, the cross-sectional shape of the processing container in a plane parallel to the circular movement IIdJ path of the working piece is a parallelogram, and the moving direction of the moving magnetic field with respect to the processing container of the bracket is set to the parallelogram. A moving magnetic field type powder mixing and other processing device characterized in that the shape is directed from a part of an obtuse corner to a part of an acute corner.