KR200292631Y1 - A Grinding Apparatus for Fine Powder - Google Patents

Abstract

The present invention relates to a fine grinding device.

In particular, it is made of a configuration including a case having a predetermined space, a raw material grinding unit consisting of a plurality of rotary shafts installed to intersect a plurality of grinding blades, and a power transmission unit installed to drive the rotary shafts.

Accordingly, the appropriate impact amount is generated according to the state of the raw material to improve the grinding efficiency, and it is unnecessary to add a separate grinding ball to minimize the wear and damage of the grinding blade and the case.

Description

Grinding Apparatus for Fine Powder

The present invention relates to a pulverizing device, which in particular, a case having a cooling means on the outside, a raw material pulverizing unit consisting of a plurality of rotating shafts installed to intersect a plurality of grinding blades, and a power installed to drive the rotating shaft The present invention relates to a pulverizing device that minimizes abrasion and damage of the grinding blade and the case by eliminating the input of a separate grinding ball by allowing an appropriate impact amount to be generated according to the state of the raw material with a transmission part. .

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 The disadvantage is that the particles become 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 An impeller surface (not shown) 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 be fixed to the rotating shaft 40 rotated as the pulley 60.

In the fine grinding device as described above, the impeller surface 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 direction of the inner wall of the container 50. In this case, the inner wall of the container 50 and the impeller ( The raw material is pulverized by the kinetic energy of the ball injected with the raw material between the tip portions of 10).

However, in the above-mentioned fine grinding device, only a certain amount of impact is always applied, which lowers the grinding efficiency, and balls are added together with the raw material to accelerate the 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.

The purpose of the present invention to improve 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 because the separate grinding ball input 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 and a plan view showing a fine grinding device according to the present invention, respectively.

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

6 and 7 are respectively a perspective view showing a pulverizing device according to yet 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 in which a predetermined space is formed;

A raw material grinding part comprising a plurality of rotary shafts installed to be rotatable inside the case and a plurality of grinding blades fixed to cross each other;

Provided is a pulverizing device consisting of 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 made of a case 100, the raw material grinding unit 200 and the power transmission unit 300.

The case 100 is formed in a peanut-shaped or cylindrical shape and has a predetermined space closed inside the cooling means 110 is provided on the outer surface, the raw material inlet 120 and outlet 130 is installed on the upper and lower do.

When the case 100 is cylindrical, the impingement plate 100a is coupled to the inner surface such that the case 100 has the same impact distance at the same circumference.

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 fixed to intersect the plurality of rotary shafts 210 and the rotary shafts 210.

The grinding blade 220 is integrally formed with a collision surface (220a) protruding on the outer circumference.

Although not shown in the present invention, an arc-shaped protrusion may be radially projected on the upper surface of the grinding blade 220.

In addition, the friction plate 210a may be formed on the rotating shaft 210 of the one end of the grinding blade 220 to correspond to the collision surface 220a.

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

The power transmission unit 300, the pulley (210b) fixed to the rotating shaft 210 may be engaged as a screw thread and may be driven by a hydraulic motor, wherein a plurality of rotating shafts are radially positioned with respect to the centrally located rotating shaft. The lower shaft may be rotated by the screw combination by the sun gear and the satellite gear.

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

In addition, the spacing of the grinding blades 220 connected to the rotation shaft 210 to cross each other may be formed to have a shape that is gradually reduced or increased toward the bottom.

In addition, the number of impact surfaces 220a protruding from the grinding blade 220 may be formed to have a shape that gradually increases or decreases.

In addition, the number of impingement surfaces 220a toward the lower gradually increases, the diameter of the grinding blade 220 is gradually increased toward the lower, the spacing of the grinding blade 220 is gradually reduced toward the lower, the grinding blade ( Consists of a configuration in which the number of the collision surface (220a) protruding to 220 is gradually increased.

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

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

In addition, the raw material introduced during the input of the raw material is the case (by the collision surface 220a protruding to the outer surface of the grinding blade 220 and the grinding blade 220 intersecting while passing through the grinding blade 220 to cross each other ( It is crushed while colliding with the inner surface of 100).

Subsequently, when the raw material is crushed by the crushing blade 220, the case 100 is overheated due to the impact force caused by the collision with the case 100, and at this time, cooling means installed on the outer surface of the case 100 ( The case 100 is prevented from overheating by the 110.

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. The micronization work may be performed in a process of resupply through the recirculation pipe 130a.

The raw material grinding unit 200 is formed by the friction plate 210a corresponding to the impact surface 220a on the rotating shaft 210 near the tip of the grinding blade 220 to form the inner surface and the rotating shaft 210 of the case 100. Through the raw material is crushed to increase the grinding 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 crushing efficiency by the raw material collided with the crushing blade 220 is injected in the opposite direction to collide with each other. .

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.

And, although not shown in the present invention, the raw material is formed to protrude radially on the upper surface of the crushing blade 220 radially to be injected into the inner surface of the case while grinding the raw material by the projection.

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 gradually increase or decrease toward the lower portion is arranged It uses power efficiently.

In addition, the interval between 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 toward the lower side.

In addition, the number of impingement surfaces 220a toward the lower gradually increases, the diameter of the grinding blade 220 is gradually increased toward the lower, the spacing of the grinding blade 220 is gradually reduced toward the lower, the grinding blade ( Combining a configuration in which the number of collision surfaces 220a protruding from the 220 is gradually increased, the effect can be maximized.

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 such, according to the present invention, an appropriate impact amount is generated according to the state of the raw material, thereby improving the grinding efficiency, and a separate grinding ball is unnecessary, preventing wear and damage of the impeller and the container, and separately for grinding the raw material. Of course, the ball is unnecessary, thus preventing the increase of noise, and it is possible to differentiate it by a batch process.

Although the present invention has been shown and described with respect to specific embodiments, it is understood that the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following Utility Model Registration Claims. It will be clear to those skilled in the art that it is very easy to 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; Raw material grinding part 200 consisting of a plurality of rotary shafts 210 which are fixed to the inside of the case 100 so as to be rotatable and a plurality of grinding blades 220 fixed to cross each other on the rotary shaft 210; And, Grinding device consisting of a configuration including a power transmission unit 300 is installed to drive the rotating shaft 210 The pulverization apparatus of claim 1, wherein the outlet 130 is further connected to a recirculation pipe 130a connected to one side thereof and connected to the inlet 120. 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 fine grinding device according to claim 1, wherein the grinding blade (220) is formed integrally with a plurality of impingement surfaces (220a) projecting on an outer circumference. According to claim 1 or 4, The grinding blade 220, Collision surface 220a to the rotary shaft 210, the front end of the one side grinding blade 220 is proximate to face the impact surface 220a protruding on the outer circumference And the friction plate 210a is fixed in correspondence with 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 is installed so that the pulleys 210b respectively fixed to the rotation shafts 210 are engaged with the threads and driven by a hydraulic motor. The pulverizing device of claim 1, wherein the grinding blade 220 coupled to the rotary shaft 210 is formed to have a shape in which the diameter thereof is added or subtracted at a predetermined ratio toward the lower side. According to claim 1, The grinding blade 220 is coupled to the rotary shaft 210, the grinding mill, characterized in that the spacing of the grinding blades 220 to be connected to each other is coupled to the lower portion at a constant ratio Device The pulverizing device of claim 1, wherein the grinding blades 220 coupled to the rotary shafts 210 are added to or subtracted at a predetermined ratio from the number of impact surfaces 220a protruding from the grinding blades 220. According to any one of claims 8 to 10, The grinding blade 220 coupled to the rotating shaft 210, the number of the impact surface 220a and the diameter of the grinding blade 220 toward the lower portion of the case 100 And pulverizing device, characterized in that the configuration in which the interval between the grinding blade 220 is added or reduced at a constant ratio is integrated.