JPH0736888B2 - Oscillating dispersion / crushing device - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an oscillating plate which is driven to revolve along a circular orbit and a processing container attached to the oscillating plate. When the object to be processed and the medium are put in and the oscillating plate is driven,
The present invention relates to a rocking type dispersion / pulverization device in which an object to be treated is dispersed or pulverized.

[Prior Art] Efficient fine pulverization of coal, water slag, silica sand, etc., especially raw materials for new ceramics, raw materials for electronic devices, or substances in submicron units related to various fine chemistries. The development of a fine crushing or ultra-fine crushing device for the production of is has become an important goal in various fields. On the other hand, along with the pulverization technology, the development of a technique for uniformly dissolving and dispersing these fine powders in a liquid and a method for crushing and dispersing the fine powders that easily agglomerates along with the pulverization technology has been urgently required as the particles become finer. In response to the above demands, the direction of recent development is toward the research and development of crushers such as rolling type ball mills and vibration mills that mainly use impact force for grinding. Its eyes are on. The reason for this is that rolling ball mills have a critical number of revolutions relative to the number of revolutions of the mill, so it is not possible to expect an increase in pulverizing capacity due to the number of revolutions, and a vibration mill is expected as a fine pulverizer for various reasons. However, at present, it is considered that there is a wall or limit around 3 microns. In order to eliminate the above-mentioned limitation, a horizontal cylindrical type vertical rotation type centrifugal mill which orbits a planetary ball mill or a crushing container on a circular orbit of a vertical plane has been proposed. In these mills, the balls or media themselves experience a centrifugal force that is much greater than the centrifugal force acting on the body, which increases the momentum of the balls and the relative velocity between the balls, resulting in compression by the balls. It is crushed by grinding between the ball and the ball and between the walls of the crushing container, but in the former planetary ball mill, continuous operation is difficult, and because there is a critical rotation speed, the crusher in submicron units As a result, I cannot get enough satisfaction. Further, the latter centrifugal mill also has a critical rotation speed, and furthermore, the bearing supporting the eccentric shaft is directly affected by the entire load of the mill and its centrifugal force, which is problematic and uneconomical in terms of power. There are drawbacks such as. Then, JP-A-62-5
Japanese Patent No. 3748 proposes a horizontal swirl type crusher that orbits a container into which a material to be treated is thrown on a circular orbit of a horizontal plane. The swivel base of this crusher is supported by an elastic rod, and when the eccentric shaft is driven by the motor, the swivel base revolves in the horizontal plane, and the powder put in the crushing container is the medium. Due to this, a crushing force and a frictional force are applied to pulverize. A part of the side wall of the crushing container is cut out, and a screen is attached to the cut out part.

In such a crusher, as described in the above-mentioned publication, the centrifugal force acting on the crushing medium should be increased as compared with the centrifugal force by the gyro motion acting on the crushing container. It has an excellent effect that the pulverization efficiency can be increased. However, there are drawbacks. For example, since the swivel is supported by an elastic rod, it cannot be applied to a large crusher due to the strength of the rod. In fact, the aforementioned publication describes that this crusher is for small volume processing. Further, the bending stress is constantly applied to the rod during operation, which causes a problem of material fatigue.
Furthermore, since the swivel base is configured to revolve around two kinds of different members, a member that supports the swivel and a member that imparts a swivel motion, there is a drawback that the number of parts increases and the cost increases.

Therefore, the applicant of the present invention has proposed, in Japanese Patent Application No. 2-10526, a dispersing / crushing machine which solves the above-mentioned various problems. As shown in FIGS. 6 and 7, the rocking plate 1 supporting the processing container 100 of the dispersing / crushing machine is 3
It is supported by book eccentric shafts 2, 2 and 2. That is, the oscillating plate 1 having a triangular plane is supported only by the three eccentric shafts 2, 2, 2 which are borne on the gantry frame 3, and is provided so as to revolve on a circular orbit. ing. The eccentric shafts 2, 2 and 2 have the same structure,
The lower main shaft portion 4 is rotatably supported by a pair of upper and lower bearings 5 and 6 which also receive a load in the thrust direction, and the upper slave shaft portion 7 is supported by a similar bearing provided on the rocking plate 1. It is supported. The eccentric shafts 2, 2 and 2 naturally have a crank portion 8 which is eccentric by ε between the main shaft portion 4 and the slave shaft portion 7, and a balance weight 9 is provided at an end portion of the clan portion 8. There is. In the illustrated embodiment, only one eccentric shaft 2 is driven by the motor 12 via the transmission means 10 and 11. Processing container 10
0 has a swelling portion in the shape of a daruma, a lid 101 is provided in the opening above it, and is detachably fixed to the substantial center of the rocking plate 1 by an appropriate means (not shown). ing. The gantry frame 3 is supported on the floor by a plurality of shock absorbers 13. When the motor 1 is started, one eccentric shaft 2 is rotatably driven by the transmission means 10 and 11 in the dispersing and crushing device, the other eccentric shafts 2 and 2 follow, and the rocking plate 1 has a radius ε. Revolves along a circular orbit. As a result, the medium filling rate is, for example, 40 to 6
The object to be treated put in the treatment container 100 filled to 0% is subjected to the dispersion treatment or the pulverization treatment by the rotational movement and the rotational movement of the medium. This treatment can be carried out wet or dry.

[0005]

By the way, according to the above-mentioned dispersing and crushing apparatus, since the oscillating plate 1 is supported by the plurality of eccentric shafts 2, 2, 2 having high strength, the heavy processing container 100 The oscillating plate is supported by a plurality of eccentric shafts of one type, and one of them is driven, so that parts can be standardized and provided at low cost. The supporting members can be made eccentric shafts 2, 2,
Since it is 2, the service life is longer than that of the conventional rod, and further, since any eccentric shafts 2, 2, 2 can be selected for driving, the arrangement of the driving motor is flexible, etc. The excellent effect of is obtained. However, there is a problem in continuous operation. Especially, since the processing container is in a turning motion,
The previously proposed apparatus has a problem in continuously discharging the dispersed or crushed object to be processed from this container. Similarly, there is a problem in continuous supply to the processing container.
Therefore, an object of the present invention is to provide an oscillating type dispersing / crushing apparatus capable of continuously taking out an object to be processed from a processing container that revolves along a circular orbit, and other inventions are the same. It is an object of the present invention to provide an oscillating dispersion / pulverization device capable of continuously supplying, treating, and taking out an object to be processed into a processing container that orbits along a circular orbit.

In order to achieve the above object, the present invention comprises an oscillating plate which is driven so as to revolve along a circular orbit and a processing container attached to the oscillating plate. An upper opening of the processing container in a dispersion / crushing device in which the object to be processed and the medium are put into a container and the rocking plate is driven to disperse or grind the object to be processed. A cup-shaped lid is detachably provided in the portion, and a pipe for supplying the object to be treated into the processing container and a discharge port for discharging the treated object are provided in the cup-shaped lid. And the pipe is configured to penetrate the cup-shaped lid and reach the inside of the processing container, and a mesh screen smaller than the size of the medium is provided in the vicinity of the discharge port. . Further, in the invention according to claim 2, a flexible pipe for supplying an object to be processed having a predetermined length, the supply side of which is fixed, is connected to a pipe for supplying the object to be processed into the processing container. A flexible tube guide means is rotatably provided at a substantially middle portion in the longitudinal direction of the tube so as to prevent the processing vessel from bulging radially outward due to centrifugal force when the processing vessel revolves along a circular orbit.

[0007]

The object and the medium to be processed are put into the processing container attached to the oscillating plate to drive the oscillating plate. Then, the object to be processed is subjected to dispersion processing or crushing processing by the rotational movement and the turning movement of the medium. During this process, addition of water results in a wet process, but without addition of water results in a dry process. The processed object rises along the wall surface of the processing container and reaches the cup-shaped lid. Then, it is discharged from the discharge port to the outside of the processing container. At this time, the screen prevents the medium from being ejected. In this way, even when the processing container is revolving, it is continuously discharged. According to the second aspect of the present invention, the object to be processed is continuously supplied from the flexible tube to the processing container through the pipe. Since the processing container revolves on the rocking plate, the object to be processed is subjected to dispersion processing or pulverization processing by the rotational movement and rotational movement of the medium. The processed object rises along the wall surface of the processing container, reaches the cup-shaped lid, is screened by the screen, and is discharged from the processing container to the outside of the processing container. In this way, continuous supply, continuous processing, and continuous discharge are performed.

[0008]

The present invention can be implemented in various forms. For example, the processing container may be mounted on a tilted rocking plate, that is, a rocking plate in which an eccentric shaft for driving the rocking plate is tilted with respect to a vertical line. When mounted on such an oscillating plate, the number of revolutions of the eccentric shaft can be increased and the processing capacity can be increased. Therefore, the oscillating plate also includes an oscillating plate inclined in this way. The screen may be detachably provided in the upper opening of the processing container. However, it is preferable that the cup-shaped lid is detachably provided near the opening of the lid. This is because maintenance and management becomes easy. When a perforated plate is applied to the screen, the service life is extended and the strength is also improved. Further, the flexible tube guide means for guiding the flexible tube is implemented by a plurality of rollers or a ring-shaped rotating body, but the surface of the rotating portion in contact with the flexible tube 43 is preferably rubber-lined, for example.
This is because vibration is absorbed and wear of the flexible tube is prevented.

Embodiments of the present invention will be described below. According to the present embodiment, the processing container 20 is attached to the oscillating plate 1 as shown in FIG.
Driven as described above. Therefore, similar members are designated by the same reference numerals and will not be described redundantly. As shown in FIG. 2, the processing container 20 has a flask-like shape in which the diameter is reduced upward when viewed from the side, and the bottom wall is expanded outward to form a flange portion 21. The flange 21 has a plurality of through holes 22, 22.
Are formed, and are attached to the swing plate 1 by utilizing these through holes 22, 22. An opening 23 is provided above the processing container 20, and a second flange 24 extends radially outward from the opening 23. The second flange 24 is also provided with a plurality of through holes 25, 25 for attaching a cup-shaped lid body described later.

As shown in FIG. 2, the cup-shaped lid 30 is formed in a cup shape and has an opening 31 on the lower side. The opening 31 coincides with the opening 23 of the processing container 20. Flange 3 extending radially outward from the opening 31
2 is formed, and the flange 32 has a cup-shaped lid 30.
Through hole 2 of the flange 24 when attached to the processing container 20
Through holes 33, 33 corresponding to Nos. 5 and 25 are bored, and using these through holes 25, 33, the processing container 20 and the cup-shaped lid 30 are integrated by bolts and nuts 37, 37. There is. The screen 34 is formed by forming a plurality of holes in a plate material, and the diameter of the holes is set to the processing container 20.
Is smaller than the diameter of the medium B stored in. Screen 3
2 is shown fitted in the opening 31 of the cup-shaped lid 30 in FIG. 2, it is replaceably fixed to the processing container 20 or the cup-shaped lid 30 by means of a flange or the like. There is.

A pipe 40 for supplying the object M to be processed to the processing container 20 penetrates the bottom wall 35 of the cup-shaped lid 30 and the screen 34. Further, the discharge pipe 41 for discharging the processed object is attached to the side wall 36 of the cup-shaped lid body 30 by, for example, a screw.

Referring again to FIG. 1, it is understood that the pedestal 50 is provided so as to surround a part of the processing container 20. And in the substantially central portion of the lateral member 51,
Specifically, as shown in FIG. 3, the fixed tube 42 is fixed by a flange 52, bolts and nuts 53, and the like. The fixed tube 42 and the pipe 40 are connected by a flexible tube 43.

The pedestal 50 has a plurality of struts 54, 54. A flexible tube guide for preventing the flexible tube 43 from bulging radially outward due to centrifugal force during operation on these struts 54, 54. Means 60 are provided. Since the position where the flexible tube 43 expands most is the substantially central position in the longitudinal direction, the flexible tube guide means 60 is also provided corresponding to that position. In the embodiment shown in FIG. 3, the flexible tube guide means 60 comprises a ring body 61 and a plurality of rollers 62, 62 rotatably mounted on the inner circumference of the ring body 61. There is. That is, the brackets 64, 64 supporting the ring body 61 are fixed to the angles 63, 63 fixed to the columns 54, 54 with bolts 65, 65.
The rollers 62, 62 are rotatably provided by vertical shafts 66, 66 via bushes, as shown in the figure. The rollers 62, 62 are formed so that the diameter of the lower side is smaller than the diameter of the upper side so as to make surface contact with the flexible tube 43.

FIG. 4 is a schematic view of a wet system equipped with the dispersing / crushing device of this embodiment. The operation of this embodiment will be described mainly using this drawing. The material to be processed M is charged into the raw material charging hopper A. Then, the object M to be processed is transferred to the conditioner D by the transfer conveyor C disposed therebelow. In the conditioner C, the water M to be treated is, for example, diluted water is added through the line R, or a dispersant or the like is appropriately added, the stirring treatment is performed by the impeller E, and the pressure is sent to the fixed pipe 42 by the pump F.

A plurality of mediums B are put in the processing container 20 and are revolved.
The object M to be processed is supplied through the flexible tube 43 and the pipe 40. At this time, the flexible tube 43 tries to be deformed radially outward by centrifugal force, but the rollers 62, 6 of the flexible tube guide means 60 are deformed.
It is restricted by 2 and cannot be deformed. Since the rollers 62, 62 rotate when being guided by regulation, the flexible tube 43 is not worn. In addition, power is not wasted. Further, when the flexible tube 43 swells, the object M to be processed is pressed against the inner wall surface of the flexible tube 43 by the centrifugal force and cannot be supplied. However, according to the present embodiment, the swelling occurs as shown in FIG. Since it does not occur, it is supplied smoothly.

In the processing container 20, the object M to be processed is crushed or dispersed by a crushing force and a frictional force applied by the medium B. Such a processing state is shown in FIG. Since centrifugal force acts on the object M and the medium B during processing,
The object M and the medium B are pressed against the wall surface of the processing container 20. Since the processing container 20 is formed in the shape of a flask, it moves upward with a small diameter, and the object M to be processed passes through the screen 34 and from the discharge pipe 41 of the cup-shaped lid 30 through the guide G to the sump tank H. Is discharged to. Discharge pipe 41
Makes an orbital revolving motion, but the discharge pipe 41 and the guide G
Is not directly connected, its movement is not transmitted to the guide G. Also in the sump tank H, the object M is agitated by the impeller K driven by the motor J, and the object M to be processed is kept in a slurry state. It is pumped from the sump tank H to the classifier N by the pump L. Since the classifier N is composed of a cyclone, its overflow is sent to the settling tank P, and the underflow is returned to the conditioner D and processed again.

Another embodiment of the flexible tube guide means 60 will be described with reference to FIG. According to this embodiment, the bearing unit including the inner ring 70, the ball 71, the outer ring 72, and the housing 73 has bolts 65, 65 on the brackets 64, 64.
It is fixed at. The inner ring 70 has a predetermined inner diameter, and a tapered guide ring 74 is fixed to the inner peripheral surface of the inner ring 70 with screws. Also in this embodiment, the guide ring 74
As a result, the flexible tube 43 is prevented from bulging, and the flexible tube 4
It is clear that the contact of 3 causes the guide ring 74 to rotate together with the inner ring 70 with respect to the outer ring. It should be noted that there is a means of using a rotary joint instead of a flexible tube as a device for supplying an object to be processed, but the rotary joint is expensive, and precision is required for alignment between the fixed portion and the rotary portion.

[0018]

According to the present invention, since the processing container is attached to the rocking plate which is driven so as to revolve around the circular orbit, when the rocking plate is driven, the object to be processed becomes a medium. The dispersion and crushing treatments are efficiently performed by the rotational movement and the turning movement of the. Further, since the cup-shaped lid is provided with the discharge port, the processed object is sieved by the screen and continuously discharged out of the processing container. In this way, even when the processing container is revolving,
An effect peculiar to the present invention that it can be continuously discharged is obtained. According to the second aspect of the present invention, the flexible tube is connected to the pipe for supplying the object to be processed to the processing container, and the processing container is provided on the circular orbit at a substantially middle portion in the longitudinal direction of the flexible tube. Since the flexible tube guide means is provided rotatably to prevent the flexible tube from bulging outward due to centrifugal force when it revolves around the orbit, the flexible tube tries to be deformed outward due to centrifugal force. It is restricted by the pipe guiding means and cannot be deformed. Therefore, according to the present invention, since the bulge does not occur, the object to be processed can be continuously and smoothly supplied to the processing container.
Further, since the cup-shaped lid is provided with the discharge port, the processed object reaches the cup-shaped lid and is sieved by the screen to be continuously discharged from the discharge port to the outside of the processing container. . That is, according to the second aspect of the present invention, the effect that the object to be treated can be continuously supplied, continuously treated, and continuously discharged can be obtained.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a processing container portion shown in FIG.

FIG. 3 is an enlarged cross-sectional view of the flexible tube guide means portion shown in FIG.

FIG. 4 is a schematic system diagram showing a usage state of the embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view showing another example of the flexible tube guide means portion shown in FIG.

FIG. 6 is a sectional view showing the prior art of the present invention.

FIG. 7 is a plan view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rocking plate 20 processing container 30 cup-shaped lid 34 screen 40 pipe 41 discharge pipe 43 flexible pipe 60 flexible pipe guide means

Claims (2)

[Claims] 1. An oscillating plate driven to revolve along a circular orbit and a processing container attached to the oscillating plate, wherein an object to be processed and a medium are contained in the processing container. In a dispersion / pulverization device in which the object to be treated is subjected to a dispersion treatment or a pulverization treatment when thrown in and the oscillating plate is driven, a cup-shaped lid is detachably attached to the upper opening of the treatment container. And a pipe for supplying an object to be processed into the processing container, and a discharge port for discharging the processed object to be processed are provided in the cup-shaped lid, and the pipe is An oscillating dispersion and crushing apparatus, which penetrates the cup-shaped lid and reaches the inside of the processing container, and is provided with a mesh screen smaller than the size of the medium in the vicinity of the discharge port. 2. The pipe according to claim 1 is connected to a flexible pipe having a fixed length on the supply side for supplying a workpiece.
A flexible tube guide means is rotatably provided at a substantially middle portion in the longitudinal direction of the flexible tube so as to prevent the processing container from radially outwardly expanding due to centrifugal force when the processing container revolves along a circular orbit. Swing type dispersion and crushing device.