KR20080100088A - Apparatus for pulverization and dispersion by high-speed stirring - Google Patents

Abstract

A super high speed stirring type crushing dispersion device is provided to minimize the particle diameter of the object to be ground by rotating an impeller at the super high speed. A super high speed stirring type crushing dispersion device comprises: a receiving container(100) which is opened upwardly and receives the object to be ground; an impeller(200) arranged inside the receiving container; a pulverization motor(400) which rotates the impeller and is combined with the upper part of the receiving container; a rotating unit rotating the pulverization motor on the axis vertical to the rotation axis of the impeller. The rpm of the pulverization motor is 10,000 rpm or more.

Description

Ultrafast Agitated Grinding Dispersion Equipment {APPARATUS FOR PULVERIZATION AND DISPERSION BY HIGH-SPEED STIRRING}

1 is a front cross-sectional view of one embodiment of the ultra-fast stirring grinding dispersion device according to the present invention,

2 is a front sectional view showing another state of the embodiment of FIG. 1;

3 is a plan sectional view of the embodiment of FIG. 1;

4 is a left side view showing an operating state of the embodiment of FIG. 1;

FIG. 5 is a right partial sectional view showing an operating state of the embodiment of FIG. 1. FIG.

<Explanation of symbols for the main parts of the drawings>

100: container 110: fixed ring

200: impeller 300: ceramic beads

400: grinding motor 410: clamp

500: rotation means 510: rotation axis

520: crank 530: rod

540: eccentric cam 550: rotary motor

The present invention relates to a pulverizing dispersion device, and relates to a device that can be made uniform while minimizing the particle size in grinding the pulverized object into fine particles.

Materials on powder or fine particles are required in various industries such as chemistry, agriculture, rubber, ceramics, paper coatings, metals, powders, paints and paints, printing, pharmaceuticals, cosmetics, electronics and confectionery. In order to provide such powdery materials, various types of grinding apparatuses are known, such as ball grinding, vibration grinding, impact grinding, jet grinding, pin grinding, hammer grinding and tube grinding.

The basic purpose of such a pulverizer is to provide a constant and finely pulverized material, there are many kinds as described above, but generally a closed vessel of a cylindrical shape, and is installed inside the vessel and driven rotationally by a motor It is formed as a disc or annular rotor, and inside the container, such as zirconia, glass beads, titanium oxide, steel ball, or zirconia silicote The material to be crushed is supplied into the container while the medium is filled, and the rotor is driven to rotate, and the material is pulverized by stirring and mixing the medium and the material to be crushed. The pulverized material is separated from the medium by using a separation device, and then discharged out of the pulverization device. In general, this process is repeated to reduce the particle size of the pulverized material. The grinding apparatus is stopped at the stage where the material reaches the required particle size by repeated grinding.

This type of grinder is mainly used to grind solid material, but also grinds the solid material into the liquid medium. In addition, it is also used for the purpose of accommodating different kinds of grinding objects in one container to proceed grinding and mixing at the same time. Therefore, it is also called grinding dispersion apparatus.

Recently, as the research on nanoparticles is actively conducted, the particle size required for the crushing device is gradually decreasing. However, a typical grinding device according to the prior art can only grind solid material to a particle size in the range of 100 to 5 microns, and there is a limit to reducing the particle size to less than that. Furthermore, even if the rotor is rotated inside the container, when the particles having a predetermined particle diameter or less are located at the corners of the container, they are stagnant and do not move. Therefore, there is also a problem that the particle size of the grinding object becomes nonuniform in the state that the grinding is completed.

The present invention has been made to solve the above problems, an object of the present invention is to provide a pulverization dispersion device that can crush the grinding object to a particle size of nano units.

Another object of the present invention is to provide a pulverizing dispersion apparatus capable of pulverizing a pulverized object with a uniform particle diameter.

Still another object of the present invention is to provide a pulverizing dispersion apparatus capable of uniformly dispersing and mixing different kinds of pulverized objects.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

In order to achieve the above object, the ultra-high-speed stirring grinding device according to the present invention includes an accommodation container for opening up and containing a grinding object, an impeller disposed inside the accommodation container, and rotationally driving the impeller. It comprises a grinding motor coupled to the upper side of the container, and a rotating means for rotating the grinding motor about an axis orthogonal to the axis of rotation of the impeller.

In the ultra-fast stirring grinding dispersion device according to the present invention, the grinding motor, the rotation speed is preferably 10,000 times or more per minute. In this way, when the grinding motor rotates at an extremely high speed, the impeller also agitates the grinding object at an extremely high speed, thereby reducing the particle size of the grinding object.

The rotating means may include a rotating shaft coupled to the grinding motor, a crank protruding radially from the rotating shaft, a rod hinged to one of the cranks, and an eccentric cam hinged to the other end of the rod. It is preferable to include a rotary motor for rotating the eccentric cam. When the rotating motor rotates the grinding motor slowly, the grinding object stagnated at the edge of the container can be brought into contact with the impeller again.

In the ultra-fast stirring grinding dispersion device according to the present invention, in order to further reduce the particle diameter of the grinding object may further include a ceramic bead mixed with the grinding object in the container.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the ultrafast stirring grinding dispersion device according to the present invention.

1 is a front cross-sectional view of one embodiment of the ultra-fast stirring grinding dispersion device according to the present invention, Figure 2 is a front sectional view showing another state of the embodiment of Figure 1, Figure 3 is a flat sectional view of the embodiment of Figure 1, 4 is a left side view showing an operating state of the embodiment of FIG.

The accommodation container 100 is a cylindrical container opened upwardly to accommodate the object 50 to be crushed.

The impeller 200 is disposed inside the container to rotate, and pulverizes the object to be crushed contained in the container 100. That is, the impeller 200 is in contact with the grinding object 50 while rotating at a high speed in the interior of the receiving container 100 to crush the grinding object. At this time, in order to facilitate the grinding and lower the particle diameter of the crushed object, it is preferable to accommodate the ceramic beads 300 together with the crushed object in the container 100. The ceramic bead 300 moves by the impeller 200 to cause friction with the crushed object, and as a result, further refines the crushed object 50.

The grinding motor 400 is provided to rotate the impeller 200. The grinding motor 400 has an impeller 200 fixed to the output shaft thereof, and is arranged to rotate the impeller 200 in the accommodation container 100. Since the rotation speed must be high in order to make the particle size of the grinding object smaller and complete the grinding within a short time, the grinding motor 400 preferably has a rotation speed of 10,000 rpm or more. When the number of revolutions of the grinding motor 400 is 10,000 rpm or more, it is possible to grind the grinding object to a particle size in nano units.

On the other hand, in order to prevent the crushing object 50 from scattering and detaching from the receiving container 100 during the pulverization proceeds, the opened upper portion of the receiving container 100 is coupled to be closed by one end of the crushing motor 400 It is preferable. That is, one end of the grinding motor 400 having a cylindrical shape in general is in close contact with the opened upper portion of the accommodation container 100, thereby functioning as a lid of the accommodation container 100. The accommodation container 100 should accommodate the crushing object 50, or should be able to withdraw the crushed object, it should be detachably coupled to one end of the crushing motor 400. A fixing clamp 410 and a fixing ring 110 are provided to allow the receiving container 100 to be detachably coupled to the grinding motor 400. In Figures 1 to 4, the fastener 410 is formed on the outer side of the one end of the grinding motor 400, the fixing ring 110 is provided on the outer side of the upper end of the receiving container 100, fixed by the user's operation Rotating the hook 110 to the fastener 410 is caught or released by the receiving container 100 is illustrated as binding or detachment to the grinding motor 400, in particular Figure 2 receiving container 100 is a grinding motor It is shown in a state removed from 400, Figures 1 and 4 are shown in a state in which the container 100 is coupled to the grinding motor (400). At this time, the fixing clamp 410 and the fixing ring 110 are not necessarily formed or installed in the grinding motor 400 and the receiving container 100, respectively, or formed in the receiving container 100 and the grinding motor 400, respectively. It may be installed. In addition, any configuration may be used as long as it is not limited to the clamp and the fixing ring, and the housing container 100 and the grinding motor 400 can be detachably attached.

Rotating means 500 is for rotating the grinding motor 400. The central axis of the rotation means 500 that rotates the grinding motor 400 is installed to be substantially orthogonal to the rotation axis of the output shaft of the grinding motor 400. For example, as shown in FIG. 5, the rotation means 500 includes a rotation shaft 510 having one end coupled to the grinding motor 400, a crank 520 coupled to protrude radially from the rotation shaft, and a crank. Rod 530, one end of which is rotatably coupled to the other, an eccentric cam 540 of which the other end of the rod 530 is rotatable, and an eccentric cam 540 on the output shaft for rotating the eccentric cam 540. The rotation motor 550 is installed. In FIG. 5, the crank 520 has a disc shape, and a rod 530 is rotatably coupled to one end thereof, that is, the same shape as the eccentric cam 540, but the crank 520 has a rotating shaft ( If the shape includes a portion protruding radially from the 510, it may have a different shape, such as a simple bar shape.

In the rotation means 500, when the rotation motor 550 rotates, the rod 530 moves while the eccentric cam 540 rotates, and one end of the crank 520 is moved by the movement of the rod 530. Since it moves along the circumference, the rotating shaft 510 is rotated by a predetermined angle, and as a result it is repeated. When the rotation shaft 510 rotates, the grinding motor 400 fixed to the rotation shaft 510 rotates together, and since the accommodation container 100 is fixed to the grinding motor 400 again, the accommodation container 100 is also Will rotate. At this time, the rotational speed of the rotary motor 550 may be arbitrarily added or reduced in the range of several times to several tens of minutes depending on the characteristics of the object to be crushed and the required particle diameter.

Meanwhile, the rotation shaft 510 is coupled in a direction substantially perpendicular to the rotation axis of the impeller 200. For example, as shown in Figure 1, when the rotation axis of the impeller 200, that is, the output shaft of the grinding motor 400 is arranged in the vertical direction, the rotation shaft 510 is disposed in the horizontal direction, the receiving container 100 The combined motor 400 is slowly rotated along the trajectory of the single pendulum movement in the vertical plane. Then, the object to be pulverized flows in the receiving container 100, and is further stirred in addition to the stirring by the impeller 200. If the receiving container 100 does not rotate, no matter how the impeller 200 rotates at high speed, the grinding object at the corner of the receiving container 100 remains in place and all other parts of the grinding object are undifferentiated. However, some grinding objects may have relatively large particle diameters. According to the present invention, as the container 100 rotates, the object to be crushed is mixed, and as a result, the whole is crushed to an even particle size.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

As described above, the ultrafast stirring type grinding dispersion device according to the present invention can minimize the particle size of the grinding object by rotating the impeller at an extremely high speed. Further, by rotating the container containing the object to be crushed, it is possible to prevent the pulverized object from stagnating inside the container and to make the particle size of the pulverized object uniform. In addition, even when accommodating different kinds of grinding objects can be dispersed evenly to each other.

Claims (4)

An accommodation container for upwardly opening and containing a grinding object, An impeller disposed inside the container, A pulverizing motor coupled to the impeller and driven upwardly, Ultra-fast stirring grinding dispersion device comprising a rotating means for rotating the grinding motor about the axis orthogonal to the axis of rotation of the impeller. According to claim 1, The grinding motor, Ultra-fast stirring grinding dispersion device characterized in that the number of revolutions 10,000 times per minute. The method of claim 1 or 2, wherein the rotation means, A rotating shaft coupled to the grinding motor, A crank protruding radially from the rotational shaft, A rod hinged to one end of the crank, An eccentric cam hinged to the other end of the rod, Ultra-fast stirring grinding dispersion device comprising a rotation motor for rotating the eccentric cam. The method according to claim 1 or 2, Ultra-fast stirring pulverized dispersion device characterized in that it further comprises a ceramic bead mixed with the object to be crushed in the container.

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