KR20030025649A - Media agitated grinding device for nanosize grinding and dispersing - Google Patents

Abstract

PURPOSE: Provided is a stirring crusher to crush and scatter nano-sized media which enlarges filtration area of a bead separator and raises the pressure of a crushing room so that it enables to circulate a large amount of media. CONSTITUTION: The stirring crusher to crush and scatter nano-sized media is characterized by comprising the parts of: a crushing room(1) which consists of a rotated rotor(2) and a fixed stator(3); an orifice hole(21) which is connected to a motor shaft at one side of the rotor; and a supply hole for the crushed material(13) which is placed at the punched center in the other side of the rotor. In the stirring crusher, slurry is passed through the orifice hole, moved in a cylindrical direction and passed through the rotor and the stator to perform crushing and scattering.

Description

Media agitated pulverizer for nanosize pulverization and dispersion

As the demand for new materials with better characteristics increases due to the development of the electronics industry, the development of new materials is expanding due to the advancement of new-ceramic research. The necessity of producing ultra fine powder (submicron, nano size) in manufacturing new materials of New-Ceramics is that the sintered body made of fine grains has high strength, little variation in strength, and uniform strength. In particular, the reduction of the firing temperature has an energy saving effect and easy molding. For this reason, when ultrafine tablets are required, mechanical grinding and dispersing systems have emerged as an important position, and media media stirring machines have been in the spotlight as the only grinders that meet this requirement.

Disadvantage of the existing media media stirrer is that the bead separator is not in the grinding chamber, so the filter surface cannot be enlarged, so that the pressure rise or breaking of the grinding chamber occurs due to clogging, and the bead separator is easy to wear.

The present invention improves or solves the above-mentioned conventional problems by drastically improving or inventing a grinding chamber, a roto, and a bead separator, unlike the conventional method, as a media medium stirring type grinder.

Fig. 1-1-1, Fig. 1-1-2 Multi-slit Disk Rotary Grinder Structure Diagram

Fig. 1-2-1 Fig. 1-2-2 Structure of Cartridge Screen Shredder

Fig. 2-1-1, Fig. 2-1-2 Horizontal Roto Type A

Fig. 2-2-1, Fig. 2-2-2 "(Type b)

Fig. 2-3-1, Fig. 2-3-2 Structural Diagram of Horizontal and Vertical Roto Type C

Figure 3-1-1, Figure 3-1-2, Figure 3-1-3, Figure 3-1-4 Structure diagram of a multi-gap disc rotating bead separator

Fig. 4 Circulation System of Media Media Stirring Crusher

Hereinafter, described in detail by the accompanying drawings as follows.

Fig. 1-1-1 Structural Drawing, Fig. 1-1-2 Sectional View>

The grinding chamber 1 is composed of a rotating roto 2 and a fixed stator 3, one side of the roto 2 being connected to the orifice hole 21 and the motor shaft 9, the other side. The silver is bent to the center, and there is a grinding material supply port 13 therein, in which slurry is supplied. The supplied slurry passes through the orifice hole 21 on the other side, and the slurry moves in the circumferential direction by centrifugal force, and the slurry passes between the roto 2 and the stator 3 and is crushed by centrifugal force and shear action. And dispersion is achieved.

The slurry passed through the grinding chamber 1 is filtered through the multi-gap disk rotary bead separator 14 outside the grinding chamber and the slurry is discharged.

Fig. 1-2-1 Structural Drawing, Fig. 1-2-2 Sectional View>

The grinding chamber 1 is composed of a rotating roto 2 and a fixed stator 3, one side of the roto 2 being connected to the orifice hole 21 and the motor shaft 9, the other side. The silver is bent to the center, and there is a grinding material supply port 13 therein, in which slurry is supplied. The supplied slurry passes through the orifice hole 21 on the other side, and the slurry moves in the circumferential direction by centrifugal force, and the slurry passes between the roto 2 and the stator 3 and is crushed by centrifugal force and shear action. And dispersion is achieved.

The slurry passed through the grinding chamber 1 is filtered through the card ridge bead separator 14 outside the grinding chamber and the slurry is discharged.

Fig. 2-1-1, Fig. 2-1-2 Roto (Type a)

This roto (type a) is applied to the horizontal type, the configuration is roto (1), pin (2), projection (3), projection inclined surface (4) orifice (5), orifice (6), fixing hole (7) It is.

The circumferential surface has a projection 3 for imparting centrifugal force and a pin 2 for applying shear force, and the inclined surface of the projection increases the grinding efficiency by causing the beads to move in the opposite direction to the direction in which the slurry flows. The orifice hole 5 causes the slurry flowing into the center of the roto to move in the circumferential direction. The orifice 6 allows the beads to circulate in the roto circumferential direction.

Fig. 2-2-1, Fig. 2-2-2 Roto (Type b)

This roto (type b) is applied to the horizontal type, the configuration is roto (1), pin (2), projection (3), projection inclined surface (4) orifice (5), orifice (6), fixing hole (7) It is.

The circumferential surface has a projection 3 for imparting centrifugal force and a pin 2 for applying shear force, and the inclined surface of the projection increases the grinding efficiency by causing the beads to move in the opposite direction to the direction in which the slurry flows. The orifice hole 5 causes the slurry flowing into the center of the roto to move in the circumferential direction. The orifice 6 allows the beads to circulate in the roto circumferential direction.

Figure 2-3-1, Figure 2-3-2 Roto (Type c)

The configuration of the roto (type c) is a roto (1), pin (2), orifice (3), orifice (4), fixing hole (5).

Applies to vertical and horizontal types.

Figure 3-1-1, Figure 3-1-2, Figure 3-1-3, Figure 3-1-4 Multi-gap Disk Rotary Bead Separator

In general, the crevice bead separator consists of one set, but the present invention is a multi-gap to greatly enlarge the filtration area, there was no clogging.

Figure 4 Medium stirring grinder circulation system

The present invention is connected in series to a circulating line of a low speed media stirring machine to sharpen the particle size distribution.

As described above, a large flow rate can be flowed into the grinding chamber by increasing the filtration area, and the size of the grinding chamber is small, so it is easy to apply abrasion resistant materials such as roto and stator.

Claims (4)

As shown in Fig. 1-1-1, Fig. 1-1-2, Fig. 1-2-1 and Fig. 1-2-2, the media medium stirring and dispersing device in which the bead separator is installed outside the grinding chamber 2-1-2, 2-2-1, 2-2-2, 2-3-1, 2-3-2, etc. 3-1, 3-1-2, 3-1-3, 3-1-4 pulverizer applying the multi-slit disc rotating type When used in conjunction with the low-speed media stirrer grinder as shown in Figure 4 used as a circulation system.