KR20030096531A - A Grinding Apparatus for Fine Powder - Google Patents

Abstract

PURPOSE: Provided is a micro-grinding apparatus to generate proper amount of impact according to the condition of raw materials in order to improve grinding effect without alternative grinding ball to minimize abrasion and damage of grinding blade and case. CONSTITUTION: The micro-grinding apparatus further comprises a cooling part mounted outside a case(100) having a number of cooling pins(110a) and a flow duct(110b) for passing cooling fluid and a rotational axis(210) fixed with frictional blade(210a) for inducing co-impaction of raw material corresponding to a grinding blade(220), in addition to conventional constructions such as the case(100), a grinding part of raw material; and a power supply part.

Description

Grinding Apparatus for Fine Powder

The present invention relates to a pulverizing device, in particular, a case in which a predetermined space is formed therein, a plurality of rotating shafts supported by the case and the raw material introduced while being intersected with each of the rotating shafts are installed, the grinding blade is installed The raw material grinding unit and the power transmission unit installed to drive the rotating shaft to the appropriate impact amount is generated according to the state of the raw material to improve the crushing efficiency, the grinding wheel and The present invention relates to a pulverizing device for minimizing the wear and damage of the case.

In general, the pulverizing device is used to insert the pulverized material in a plurality of rollers that rotate in close proximity to each other, the pulverized device is used, the process is increased and closed because such a device has to be finely divided by performing the process several times There was a drawback of being uneven.

As described above, a fine grinding device for compensating for the disadvantages of the fine grinding device is disclosed in Korean Patent Laid-Open Publication No. 2000-32508.

That is, as shown in Figure 1, the through-hole (not shown) is formed in the center of the rotating body 20 having two or more impeller 10 in the circumference, the rotating body 20 to the outside of the impeller Impeller surface 20 is formed in the tangential direction of the through hole so that centrifugal force is generated, and the unit rotating body 20 is configured to fix a plurality of the rotating shaft 40 to which the pulley 60 is fixed.

In the fine grinding device as described above, the impeller surface 20 is formed in the tangential direction of the through hole, so that centrifugal force is generated during operation, and the raw material is strongly moved in the inner wall direction of the container 50. In this case, the inner wall of the container 50 is And the raw material is to be crushed by the kinetic energy of the ball introduced with the raw material between the tip portion of the impeller (10).

However, in the above-mentioned fine grinding device, only a certain amount of impact always acts to lower the grinding efficiency, and balls are introduced together with the raw material to accelerate wear and damage of the impeller and the container, and a separate ball for grinding the raw material is provided. Necessity of course there was a problem that the noise is increased.

An object of the present invention for improving this, to improve the grinding efficiency by the appropriate impact amount is generated according to the state of the raw material, and to prevent the wear and damage of the grinding blade and the case is not necessary to separate grinding ball In order to provide a fine pulverization apparatus that does not require a separate ball for pulverizing the raw material, thereby preventing an increase in noise, and enabling micronization by a batch process.

1 is a perspective view showing a conventional pulverizing apparatus.

Figure 2a, b is a perspective view showing a pulverizing device according to the present invention.

3 is a sectional view showing a pulverizing apparatus according to the present invention.

4A and 4B are perspective views showing the power transmission unit of the pulverizing device of the present invention, respectively.

5 is a cross-sectional view showing a fine grinding apparatus according to another embodiment of the present invention.

6 and 7 are respectively a perspective view showing a pulverizing apparatus according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100 ... case 120 ... stock input

210 ... rotating shaft 220 ... grinding blade

320 ... belt

In order to achieve the above objects, a case having a certain space;

A raw material grinding unit in which a grinding blade is installed so that a plurality of rotary shafts supported by the case and raw materials introduced while crossing each other on the rotary shafts have a predetermined direction; and,

There is provided a pulverizing device having a configuration including a power transmission unit installed to drive the rotating shaft.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 to 7, the crushing apparatus of the present invention is composed of a case 100, the raw material grinding unit 200 and the power transmission unit 300.

The case 100 is formed in a peanut shape or a cylindrical shape, the cooling means 110 is provided on the outside thereof, and the raw material inlet 120 and the outlet 130 are installed in the upper and lower portions.

When the case 100 is formed in a transportation shape, a plurality of collision plates 100a are fixed to an inner surface thereof.

In addition, the outlet 130 may be branched and the recirculation pipe 130a connected to the inlet 120 may be connected.

The cooling means 110 is composed of a plurality of cooling fins (110a) attached to the outer surface of the case 100 and a cooling fluid flow tube (110b) formed so that the cooling fluid is in contact with the cooling fins (110a).

The cooling means 110 is formed so that the cooling fluid is in contact with the plurality of cooling fins (110a) attached to the outer surface of the case 100, the cooling fluid flow pipe (110b) to cross the cooling fins (110a). This consists of the configuration being installed.

The raw material grinding unit 200 is composed of a plurality of grinding blades 220 are fixed to be inclined so as to have a certain direction of the plurality of rotary shafts 210 and the raw material introduced while crossing each other on the rotary shafts 210.

In addition, the friction blade 210a having a predetermined slope is fixed to the rotating shaft 210 near the tip of the grinding blade 220 on one side.

The power transmission unit 300 installed to drive the rotating shaft 210 includes a pulley 210b fixed to the rotating shaft 210 and a belt 320 and a belt 320 connected to each other. It consists of a motor 330 to drive.

As shown in Figure 4a, the power transmission unit 300, the pulley (210b) fixed to the rotating shaft 210 may be meshed as a screw thread and driven by a hydraulic motor.

In addition, as shown in Figure 4b, when the rotary shaft 210 is located in the center of the case 100, when the plurality of rotational axis is radially located around the circumferential direction, a plurality of rotation shafts by the coupling method of the sun gear and the satellite gear It may be rotated at the same time.

On the other hand, the diameter of the grinding blade 220 is connected to the rotation shaft 210 to cross each other is formed to have a shape that gradually increases or decreases toward the bottom.

In addition, the spacing interval of the grinding blades 220 connected to each other to the rotation shaft 210 is formed to have a shape that is gradually reduced or enlarged toward the lower side.

In addition, the number of the grinding blades 220 may be installed so as to gradually increase or decrease.

In addition, the number of the grinding blade 220 toward the lower gradually increases or decreases, the diameter of the grinding blade 220 gradually increases or decreases toward the lower, the spacing of the grinding blade 220 is gradually reduced toward the lower It may be enlarged and configured to integrate a configuration in which the number of grinding blades 220 is gradually increased or decreased.

Referring to the operation of the present invention made of such a configuration as follows.

2 to 7, the hopper is connected to the raw material inlet 120 connected to the upper surface of the case 100, and the raw material is easily introduced.

In addition, the raw materials introduced during the input of the raw materials are crushed while colliding with the inner surface of the case 100 by the intersecting grinding blades 220 passing through the grinding blades 220 to cross each other.

Subsequently, when the raw material is crushed by the grinding blade 220, the case 100 is overheated by the impact force, and at this time, the case 100 by the cooling means 110 installed on the outer surface of the case 100. To prevent overheating.

The cooling means 110, when the heat transmitted to the case 100 is transmitted through the cooling fins 110a of the mantissa attached to the outer surface of the cooling fins (110a) to the cooling fluid flow pipe (110b) and the outside air To prevent overheating.

At this time, the case 100 may be cooled by employing an air-cooled and a water-cooled method or employing only one method.

In addition, the raw material supplied and crushed through the raw material inlet 120 is crushed by the crushing blade 220 inside the case 100 and then connected to one side of the outlet 130 when discharged through the outlet 130. Recirculated through the recirculation tube (130a) to ensure that the differentiation is complete.

The raw material grinding unit 200, the friction blade (210a) is formed on the rotary shaft 210 near the tip of the grinding blade 220, the raw material is crushed through the inner surface and the rotary shaft 210 of the case 100 It will increase the efficiency.

Power transmission unit 300 for transmitting power to the rotating shaft 210, the pulley (210b) fixed to the rotating shaft 210 and the belt 320 and the belt 320 is connected to it and connected to it. Composed of a motor 330 to drive the plurality of rotating shafts 210 to have a rotational force in the opposite direction to increase the grinding efficiency.

In addition, when the pulley 210b fixed to the rotating shaft 210 is engaged as a screw thread, it is driven by a hydraulic motor, so that power is transmitted without a belt, thereby preventing power loss due to sliding or the like.

In addition, the rotary shaft is a rotary gear that is installed at the center of the rotary shaft, the rotary shaft is intersected around the rotary gear type, while being rotated integrally when driven by a motor, and pulverized as a plurality of grinding blades 220 to improve the fine grinding time and efficiency Maximize

In addition, as shown in Figure 7, the grinding blade 220 is connected to be inclined while maintaining a constant angle, the raw material to be crushed is not immediately crushed while being lowered down, but the raw material with a small particle is downward and the raw material with a large particle is up The particles are dispersed and collided with each other to improve the fine grinding performance of the particles.

Then, the inclination angle of the grinding blade 220 as described above can be maximized the efficiency if used properly arranged according to the state of the raw material.

On the other hand, the grinding blades 220 are arranged in accordance with the grinding state of the raw material is formed to have a shape that the diameter of the grinding blades 220 are connected to each other to the rotary shaft 210 to be gradually increased or reduced toward the lower portion is arranged It uses power efficiently.

In addition, the separation distance of the grinding blades 220 connected to the rotation shaft 210 to cross each other is formed to have a shape that is gradually reduced or enlarged toward the lower side is gradually pulverized the raw material introduced to the lower side.

In addition, the number of the grinding blades 220 gradually increases or decreases toward the lower portion, the diameter of the grinding blades 220 gradually increases or decreases toward the lower portion, and the spacing of the grinding blades 220 gradually decreases toward the lower portion, Combining an enlarged configuration can maximize the effect.

By the above configuration, the raw material in the state of the raw material introduced from the upper part is micronized toward the lower part, so that it can be micronized by a single process as well as the micronized particle size can be utilized for various purposes.

As described above, according to the present invention, an appropriate impact amount is generated according to the state of the raw material to improve the grinding efficiency, and a separate grinding ball is not required to prevent wear and damage of the grinding blade and the case, and to grind the raw material. There is no need for a separate ball, so of course noise is prevented from increasing, it is possible to be differentiated by a batch process.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as provided by the following claims. I would like to clarify that those who have knowledge of this can easily know.

Claims (11)

A case 100 having a predetermined space closed therein and having a raw material inlet 120 and an outlet 130 installed on upper and lower surfaces thereof; Coupled to the rotating shaft 210 and the rotating shaft 210 is fixed so as to be rotatable inside the case 100 is installed so as to cross each other, the raw material is fixed to have a certain inclination to the rotating shaft to have a certain direction Raw material grinding unit 200 consisting of a plurality of grinding blades 220; And, Grinding device consisting of a configuration including a power transmission unit 300 is installed to drive the rotating shaft 210 The pulverizing apparatus of claim 1, wherein the outlet 130 is further connected to a recirculation tube 130a connected to the inlet 120 after being branched from one side thereof. According to claim 1, The case 100, Cooling means 110 is further provided on the outer surface, The cooling means 110, A plurality of cooling fins (110a) attached to the outer surface of the case 100 ) And the pulverizing device, characterized in that the cooling fluid flow tube (110b) is formed to be in contact with the cooling fin (110a). The pulverizing device of claim 1, wherein the rotating shaft 210 is fixed with a friction blade 210a such that raw materials introduced corresponding to the grinding blade 220 collide with each other. According to claim 1, The power transmission unit 300, Pulley (210b) is fixed to the rotary shaft 210 and the belt 320 is connected to the alternately connected to this and the motor for driving the belt 320 Grinding device, characterized in that consisting of 330 The pulverizing apparatus of claim 1, wherein the power transmission unit 300 has a configuration in which pulleys 210b respectively fixed to the rotation shafts 210 are engaged as threads and driven by a hydraulic motor. The pulverizing device of claim 1, wherein the grinding blade 220 coupled to the rotary shaft 210 has a shape in which the diameter thereof is added or subtracted at a predetermined ratio toward the lower side. The pulverizing device of claim 1, wherein the grinding blades 220 coupled to the rotary shafts 210 are separated by a predetermined ratio toward and below the separation distance of the grinding blades 220 connected to each other. According to claim 1, The grinding blade 220 is coupled to the rotating shaft 210, characterized in that the blade number of the grinding blade 220 is installed to be added or subtracted at a constant ratio toward the lower portion of the case 100 Pulverizer According to any one of claims 7 to 9, The grinding blade 220 is coupled to the rotating shaft 210, the number of blades and the gap between the diameter and the grinding blade toward the lower portion of the case 100 is a constant ratio Grinding apparatus characterized in that the configuration is added to the unit The grinding blade 220 coupled to the rotary shaft 210, the grinding blade having a different inclination so that the grinding blade fixed to the rotary shaft has a raw material flow in the opposite direction (10) Grinding device, characterized in that 220 is installed opposite one of the rotating shaft (210)