KR102425075B1 - Air classifier mill equipment - Google Patents

Abstract

A grinding device using air flow classification is provided. The grinding device using air flow classification comprises: an inlet disposed on one side of an upper part of a housing to inject an object to grind and inclined downward to transfer the object to grind to a hopper through a supply pipe; a conveying screw extending in a longitudinal direction perpendicular to a lower part of the hopper, disposed inside a moving pipe formed integrally with the hopper, and conveying the object to grind introduced through the supply pipe; a dispersion impeller disposed under the conveying screw to rotate in a certain direction to disperse the object to grind and move a grinding space; a turntable horizontally rotating the object to grind located in the grinding space and a grinding roller rotating in a vertical direction intersecting the turntable to grind the object to produce a ground product; a blower introducing external air, transferring a flow rate to the grinding space to move the object to grind in a vertical direction and scattering the same to a top of the housing; a rotary rotor rotating in a horizontal direction around a vertically arranged rotational shaft to selectively classify scattered ground object; a plate-shaped cemented carbide plate supported on a horizontal shaft disposed horizontally and adjusting the size of the particles of the ground object discharged by adjusting the separation distance from the rotary rotor; and a discharge port discharging the ground object having a uniform particle size.

Description

Grinding device using air flow classification {AIR CLASSIFIER MILL EQUIPMENT}

The present invention relates to a pulverizing apparatus using air flow classification, and after pulverizing a raw material to be pulverized so as to have a uniform particle size, adjust the air pressure and air amount using the air stream classification method, thereby achieving a uniform particle size with little wear It relates to a pulverizing device using an air stream classifier capable of discharging pulverized products.

In general, a pulverizer may be used to pulverize raw materials such as minerals to an appropriate size (80 to 200 mesh).

For example, the raw material is crushed to a desired size using compression, impact, and rotation means. It can be crushed using the method.

Conventional pulverizer is a method of pulverizing raw materials by collision in a non-contact type, so it is difficult to pulverize having a uniform particle size.

In addition, the particle size to be pulverized is not uniform depending on the specific gravity of the raw material, and the production rate is lowered by that much.

The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be accepted as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

Republic of Korea Patent Publication No. 0469759 Republic of Korea Patent Publication No. 1951817

The problem to be solved by the present invention is to provide a crushing device using air flow classification.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The crushing device using the air flow classification according to an embodiment of the present invention for solving the above problems is disposed on one side of the upper portion of the housing to input the crushing object and is formed to be inclined downward, and the crushed object is transferred to the hopper through the supply pipe. feeding inlet; a transfer screw extending in the longitudinal direction perpendicular to the lower portion of the hopper and disposed inside a moving tube formed integrally with the hopper, and transferring the crushed object input through the supply tube; a dispersing impeller disposed under the transfer screw and rotating in a predetermined direction to disperse the pulverized object to move the pulverizing space; a turntable that horizontally rotates the crushing object located in the crushing space, and a grinding roller that rotates in a vertical direction intersecting the turntable to crush the crushing object to generate a pulverized product; a blower that introduces external air and transfers a flow rate to the pulverizing space to move the pulverized material in a vertical direction and disperse it to the upper portion of the housing; a rotary rotor for selectively classifying the scattered pulverized material by rotating in a horizontal direction around a vertically arranged rotary shaft; a plate-shaped carbide plate supported on a horizontal axis arranged horizontally to control the size of the particles of the pulverized product discharged by adjusting the separation distance from the rotary rotor; and an outlet for discharging the pulverized material having a uniform particle size.

In one embodiment of the present invention, the rotary rotor, a rotor formed to have a predetermined length in a horizontal direction intersecting the rotation axis; and a rotary blade formed between the upper plate fixedly supported on the horizontal axis and the end of the rotor, wherein the wing portion is formed at one end of the body portion and disposed on the carbide plate side, and the body portion is centered on A pentagonal first wing portion comprising an upwardly inclined surface and a vertical surface connected to the upwardly inclined surface; and a pentagonal shape formed at the other end of the body portion and disposed on the transfer screw side, the first wing portion having a pentagonal shape comprising a downwardly inclined surface sloping downward around the body portion and a vertical surface connected to the downwardly inclined surface. of the second wing portion; may include.

In one embodiment of the present invention, the carbide plate is disposed between the upper plate and the rotor blade, using an adjustment means provided on the horizontal axis to widen the separation distance between the carbide plate and the rotation blade In this case, the precision is lowered and the pulverized material having a large particle size is discharged, and when the distance between the carbide plate and the rotary blade is adjusted to be narrow by using the adjusting means provided on the horizontal shaft, the precision is increased and the pulverization having a small particle size Water may be drained.

In one embodiment of the present invention, a guide plate for guiding the pulverized material falling into the hopper without passing through the separation distance with the transfer screw; includes, wherein the guide plate is 1/2 around the moving tube It has a smaller length, and may be formed to be inclined at 30° to 50° at a portion where the hopper and the supply pipe are connected.

In one embodiment of the present invention, an air guide for guiding the air supplied from the blower so that the flow rate of the air supplied from the blower is concentrated into the grinding space located between the turntable and the grinding roller; further comprising; and a plurality of scrapers spaced apart from the fixed fixing unit at regular intervals to correspond to the crushing space, wherein the scraper rotates in response to the horizontal rotation of the turntable, and vertical height adjustment is possible.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, after pulverizing an object to be pulverized to have a uniform particle size, the pulverized material having a uniform particle size with little wear can be discharged by adjusting the air pressure and air amount using an air flow classification method.

According to the present invention, by arranging the inlet for inputting the raw material obliquely from one direction and attaching a transfer screw to the inlet to block the inlet air, thereby preventing the backflow of the airflow and reducing waste, thereby increasing productivity and overloading the raw material It can be inserted smoothly without

According to the present invention, after being pulverized by the rotation of the turntable and the pulverizing roller, it serves as a plow to scrape the residue remaining on the bottom of the turntable using a scraper, inverting or disturbing the pulverized material, thereby exposing the pulverized material to the airflow. , it is possible to further improve the productivity of the work by inducing the scattering of the pulverized material while preventing the hardening of the pulverized material so that the pulverized material easily reaches the classifier located at the top.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a side view for explaining a pulverizing apparatus using air flow classification according to an embodiment of the present invention.
Figure 2 is a detailed side view for explaining the crushing device shown in Figure 1.
3 is a plan view for explaining a crushing unit according to an embodiment of the present invention.
4 is a view for explaining a scraper according to an embodiment of the present invention.
5 is a view for explaining a classifier according to an embodiment of the present invention.
6 is a view for explaining the height adjustment state of the carbide plate.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

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

1 is a side view for explaining a crushing device (hereinafter referred to as a 'crushing device') using air flow classification according to an embodiment of the present invention, and FIG. 2 is a detailed side view for explaining the crushing device shown in FIG. 3 is a plan view for explaining a crushing unit according to an embodiment of the present invention, FIG. 4 is a view for explaining a scraper according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention It is a figure for demonstrating the classification part which followed.

As shown in Figure 1, the crushing device is fixed and disposed in at least a portion of the housing (1), a supply unit 10 for supplying a crushing object, and a crushing unit for pulverizing the crushing object supplied from the supply unit 10 ( 20), a blower 30 for moving the pulverized pulverized material to the upper portion of the housing 1 using an airflow, and a classifying unit 40 for classifying the pulverized pulverized material moved to the upper portion by controlling the air pressure and air amount ) and a discharge unit 50 for discharging the classified pulverized material to the outside of the housing 1 to have a uniform particle size.

Specifically, referring to FIG. 2 , when the housing 1 has a predetermined shape, the supply unit 10 to which the crushed object is put, the blower 30 to which the air is fed, and the pulverized product to the discharge unit 50 are excluded. The remaining part is preferably sealed.

A driving unit 2 for driving and controlling the entire operation of the crushing device may be disposed at a lower portion of the housing 1 . Here, the driving unit 2 may be composed of a power source such as a reduction gear, hydraulic pressure and pneumatic pressure, but is not limited thereto.

The supply unit 10 is disposed on one side of the upper portion of the housing 1, and the inlet 11, the supply pipe 12, the hopper 13, the moving pipe 14, the transfer screw 15, the dispersion impeller 16 and It may include a supply motor unit (17). At this time, it is preferable that the supply pipe 12 , the hopper 13 , the moving pipe 14 , the transfer screw 15 and the dispersion impeller 16 are disposed inside the housing 1 .

The inlet 11 may be disposed on the outside of one side of the upper portion of the housing 1 .

The supply pipe 12 is connected to the inlet 11 and is a through-type having a predetermined diameter, and may be connected to a hopper 13 disposed to be inclined downwardly from one side of the upper portion of the housing 1 to the lower portion. In this case, a portion connected to the inlet 11 of the supply pipe 12 may be disposed outside one side of the upper portion of the housing 1 , and the remaining portion may be disposed inside the housing 1 .

Depending on the embodiment, the supply pipe 12 may be narrower from the top to the bottom, but is not limited thereto.

By such a supply pipe 12, the crushing object is not vertically directly introduced into the moving pipe 14, so that overload of the conveying screw 15 can be prevented.

The hopper 13 may include a guide plate 130 to accurately move the crushed object input through the supply pipe 12 to the moving pipe 14 .

The guide plate 130 may be disposed to extend in the longitudinal direction of the supply pipe 12 around the moving pipe 14 .

Specifically, the guide plate 130 has a length smaller than 1/2 with respect to the moving pipe 14 of the hopper 13, and 30° to 50° at the portion where the hopper 13 and the supply pipe 12 are connected. It may be formed to be inclined.

For example, the guide plate 130 may be formed to have the same length and angle as the length and angle of the supply pipe 12 of the moving pipe 14 at the portion where the hopper 13 and the supply pipe 12 are connected. That is, the guide plate 130 may be formed to have a shorter length than the position of the moving pipe 14 in the portion where the hopper 13 and the supply pipe 12 are connected.

Such a guide plate 130 can induce the crushed object to be directly introduced into the moving pipe 14 without being lost inside the hopper 13 .

The transfer pipe 14 may be formed by being integrally connected with the hopper 13 in the longitudinal direction perpendicular to the lower portion of the hopper 13 as a penetrating shape having a predetermined diameter.

The transfer screw 15 is provided in the longitudinal direction on the inner side of the transfer pipe 14 around the transfer shaft 150 , and can transfer the crushed object transferred by rotation to the crushing unit 20 .

By blocking the air flowing through the inlet 11 by such a transfer screw 15, the crushing object is excessively transferred to the crushing unit 20 by gravity and air pressure, and the crushing unit 20 is not overloaded and is stable. can supply the crushed object.

The dispersion impeller 16 is disposed under the transfer screw 15 , and may be rotated simultaneously with the transfer screw 16 . At this time, the rotation direction of the dispersion impeller 16 may be the same as or opposite to the rotation direction of the transfer screw 16 .

It is possible to prevent the crushing object from accumulating on the lower part of the conveying screw 15 by such a dispersion impeller 16, thereby preventing the load by the crushing object.

The supply motor unit 17 may be arranged to be connected to the inlet 11 . Referring to FIG. 3 , the crushing unit 20 is disposed in the lower portion of the interior of the housing 1 around the transfer shaft 150 , and includes a turntable 21 , a crushing roller 22 and a scraper 23 . can

The turntable 21 may receive rotational power from the driving unit 2 to rotate in one direction about a central axis (not shown) in contact with the transfer shaft 150 . That is, since the turntable 21 is supported by the central axis and rotates, it is not inclined to the left and right, so that the crushing effect can be further enhanced.

The crushing roller 22 may crush the crushing object located in the crushing space 24 located between the turntable 21 and the crushing roller 22 by compressive force and shearing force while rotating on the turntable 21 .

The crushing roller 22 may be configured in plurality by being spaced apart at regular intervals along the edge of the turntable 21 . At this time, it is preferable that the grinding roller 22 is driven without power.

The scraper 23 is spaced apart at regular intervals from the fixing part 230 fixed to the air guide 33 in the upper part of the crushing space 24 located between the turntable 21 and the crushing roller 22 in one direction. can be placed.

That is, the scraper 23 moves the grinding space 24 positioned between the turntable 21 and the grinding roller 22 according to the horizontal rotation of the turntable 21 in the same direction as the rotational direction of the turntable 21 ? ? can

In addition, as shown in FIG. 4 , the scraper 23 can adjust the height of the fixing part 230 through the coupling means of the fixing part 230 .

For example, when a large amount of the pulverized material is stacked in the pulverizing space 24 located between the turntable 21 and the pulverizing roller 22 , the end of the scraper 23 is in contact with the floor with respect to the fixing part 230 . The height is adjusted so that the height is lowered so that the crushing space 24 is stacked with a lot of crushed material, and the height can be adjusted so that the end of the scraper 23 falls at regular intervals from the floor based on the fixing part 230 to increase the height. have.

In the present embodiment, the scraper 23 has been disclosed to consist of three pieces spaced apart at regular intervals in the horizontal direction, but the present invention is not limited thereto. Correspondingly, the plurality of columns may be composed of at least one or more.

After the crushing object is crushed by the rotation of the turntable 21 and the crushing roller 22 using the scraper 23 as described above, the bottom of the crushing space 24 located between the turntable 21 and the crushing roller 22 By scraping off the pulverized material remaining on the part, it is possible to further improve the productivity of the work while preventing the pulverized material from solidifying.

The blower 30 may include a blower 31 , a blower pipe 32 , an air guide 33 , and a departure prevention guide 34 .

The blower 31 may be disposed on the outside of the housing 1 to supply air so that air flows into the inside of the housing 1 from the outside.

The blower pipe 32 is a penetrating type having a predetermined diameter, and is connected to the blower 31 to move air introduced from the blower 31 into the housing 1 .

The air guide 33 may guide the air so that the air supplied from the blower 32 is intensively supplied to the crushing unit 20 .

The flow rate is concentrated on the turntable 21 by such an air guide 33 to prevent separation of the crushed object, and the crushed product can be easily scattered to the classifier 40 located at the upper part of the housing 1 . have.

The departure prevention guide 34 may be formed to be fixed to the wall surface of the housing 1 in a portion where the air guide 33 is not disposed. The separation prevention guide 34 can prevent the crushing object or the crushed material that is separated from the crushing space 24 located between the turntable 21 and the crushing roller 22 from falling or leaving the lower part of the turntable 21 . have.

The pulverized object or pulverized material remaining in the separation prevention guide 34 is moved to the pulverizing space 24 located between the turntable 21 and the pulverizing roller 22 by the air supplied from the blower 30 and re-pulverized. to be made or it can be moved to the classifier 40 located on the upper part of the housing 1 .

As shown in FIG. 5 , the classifying unit 40 may include a rotary rotor 42 , an upper plate 44 , a carbide plate 46 , and a classifying motor unit 48 .

The rotary rotor 42 may include a rotary shaft 420 , a rotor 422 , a rotary blade 424 , and a horizontal shaft 426 .

The rotating shaft 420 is formed to have a predetermined length in a vertical longitudinal direction, and may rotate in one direction. That is, the rotary rotor 42 can selectively classify the pulverized material by rotating in a horizontal direction about a vertically arranged rotary shaft 420 .

The rotor 422 may be formed to have a predetermined length in a horizontal direction crossing the rotation shaft 420 . At this time, the rotor 422 may be rotated in one direction by the rotation of the rotating shaft 420 .

The rotary blade 424 may be formed between the upper plate 44 and the rotor 422 supported by a horizontally disposed horizontal shaft 426 . In this case, the rotary blade 424 may be formed at the end of the rotary rotor 422 .

Specifically, the rotary blade 424 may include a long rectangular body portion 4240 extending in a vertical longitudinal direction, and a wing portion 4242 formed at both ends of the body portion 4240 .

The wing portion 4242 is integrally connected to one end of the body 4240, and is integrally formed with the first wing portion 4242-1 formed by being coupled to the horizontal axis 426, and the other end of the body 4240. It may include a second wing portion 4242-2 formed by being coupled to each other. Here, the first wing portion 4242-1 and the second wing portion 4242-2 may be formed in the same manner, but the present invention is not limited thereto.

The wing portion 4242 may be formed in a polygonal shape including an inclined surface inclined in one direction from the body portion 4240 with respect to the body portion 4240 and a vertical surface connected to the inclined surface.

For example, the first wing portion 4242-1 may be formed in a pentagonal shape including an upwardly inclined surface inclined upward with respect to the body portion 4240 and a vertical surface connected to the upwardly inclined surface. The second wing portion 4242-2 is disposed to face the first wing portion 4242-1, and has a pentagonal shape comprising a downwardly inclined surface inclined downwardly with respect to the body portion 4240 and a vertical surface connected to the downwardly inclined surface. can be made with

In this case, the maximum width w2 of the wing portion 4242 may be formed wider than the maximum width w1 of the body portion 4240 .

For example, when the width w1 of the body portion 4240 is 6 mm, the width w2 of the wing portion 4242 may be 9 mm.

In other words, the rotary blade 424 is provided with a wing portion 4242 having a width w2 wider than the width w1 of the body portion 4240 at both ends of the body portion 4240, the rotary rotor 42 may rotate more rapidly to increase the rotational speed of the rotary rotor 42 .

By having the wing portion 4242 of such a structure, the pressure and air amount of air are increased by the rotation of the rotary rotor 42 to prevent abrasion by the pulverized material moved upward by the blower 30, A high classification effect can be obtained by increasing the friction area with the pulverized material.

The upper plate 44 may have one end connected to the horizontal shaft 426 and connected to the carbide plate 46 at the lower end of the other end. That is, the upper plate 44 may be fixed by the horizontal axis 426 to support the carbide plate 46 fixedly.

The carbide plate 46 is formed in a thin plate shape, and may be disposed between the upper plate 44 and the rotary blade 424 .

In this embodiment, the hardened carbide plate 46 is preferably made of a material that is not worn by the pulverized material moving between the rotary blades 424.

In addition, the hardened plate 46 can adjust the size of the particles of the pulverized material discharged by adjusting the separation distance from the rotary blade 424 by the adjusting means 460 .

Specifically, when adjusting the adjusting means 460 to close the separation distance between the rotary blade 424 and the carbide plate 46, only the pulverized material with small particles is the rotary blade 424 and the carbide plate 46. The pulverized material with large particles discharged through it may fall into the hopper 13 and be re-pulverized.

On the other hand, when the separation distance between the rotary blade 424 and the carbide plate 46 is widely adjusted by adjusting the adjusting means 460 , the pulverized product with large particles is between the rotary blade 424 and the carbide plate 46 . can be emitted.

At this time, the width w3 of the carbide plate 46 may be formed to be larger than the maximum width w2 of the wing portion 432 .

For example, when the width w2 of the wing portion 4242 is 9mm, the width w3 of the carbide plate 46 may be 12mm. At this time, the thickness of the carbide plate 46 may be 25mm.

The classification motor unit 48 is disposed to be connected to the rotary shaft 420 , and provides power to the rotary rotor 42 to control the rotation of the rotary rotor 42 .

The discharge unit 50 may be classified through the classifier 40 to discharge the pulverized product having a uniform particle size through the discharge port 51 .

According to the embodiment, the discharge unit 50 may be provided with an inhaler (not shown) at the end of the discharge port 51 to easily discharge the discharged pulverized material.

The operation of the crushing apparatus using the airflow classification according to an embodiment of the present invention having such a structure is as follows. Figure 6 is a view for explaining the height adjustment state of the carbide plate, Figure 6 (a) is a view for explaining a case where the separation distance between the rotary blade and the carbide plate is close, Figure 6 (b) is a rotary blade and It is a diagram for explaining a case where the separation distance between the carbide plates is wide.

First, the crushing object input through the inlet 11 formed to be inclined downward may move through the transfer screw 15 . At this time, the object to be pulverized is not lost by the guide plate 130 provided inside the hopper 13, and is classified by the classifier 40, and the hopper ( 13), it is possible to prevent the overload of the transfer screw 15 while the crushed material with large particles falling to minimize friction.

Next, the pulverized object transferred through the transfer screw 15 is dispersed by the rotation of the dispersing impeller 16 and moved to the pulverizing space 24 located between the turntable 21 and the pulverizing roller 22 in the horizontal direction. It can be pulverized by the rotating turntable 21 and the grinding roller 22 rotating in the vertical direction. At this time, the distance between the turntable 21 and the crushing roller 22 may be adjusted according to the size of the crushing object.

At this time, when the pulverized material is accumulated in the pulverizing space 24 between the turntable 21 and the pulverizing roller 22 , the remaining pulverized material may be scraped off using the scraper 23 . Accordingly, it is possible to further improve the productivity of the work while preventing the hardening of the pulverized product.

Next, the pulverized pulverized pulverized pulverized pulverized pulverized pulverized material vertically moves in the pulverizing space 24 through the air guide 33 through the air introduced by the blower 31, and the classifying part located at the upper part of the housing 1 It is possible to prevent the scattering from falling to the lower part of the turntable 21 by using the departure prevention guide 34 and at the same time from falling to the lower part of the turntable 21 .

Finally, by adjusting the separation distance between the rotary blade 424 and the carbide plate 46 , the pulverized material having a uniform particle size with little wear can be discharged through the outlet 51 . At this time, when the rotor blade 424 is provided with a blade portion 4242 wider than the body portion 4240 at both ends, when the rotor blade 424 rotates, the air pressure and the amount of air can be increased. Accordingly, it is possible to quickly classify the pulverized material and quickly discharge the pulverized material having the same particles.

Specifically, referring to FIG. 6( a ), when the separation distance d1 of the rotary blade 424 and the carbide plate 46 is made close by the adjusting means 460 , the precision is increased and the pulverized product having a small particle size only can be discharged. At this time, the pulverized material having a small particle size can be prevented from being worn by the carbide plate 46 . At this time, the pulverized material that has not passed the separation distance d1 may fall into the hopper 13 and be guided by the guide plate 130 to be re-pulverized.

In addition, referring to FIG. 6(b), when the separation distance d2 of the rotary blade 424 and the carbide plate 46 is widened by the adjusting means 460, the precision is lowered and the pulverized product having a large particle size is can be emitted. At this time, the pulverized material having a large particle size can be prevented from being worn by the carbide plate 46 .

The steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, as a software unit executed by hardware, or by a combination thereof. The software part is random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM or the present invention. It may reside in any type of computer-readable recording medium well known in the art.

Above, the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, but the present invention is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present invention. have. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

10: supply
20: crushing unit
30: blower
40: classification
50: discharge part

Claims (5)

an inlet disposed on one side of the upper portion of the housing to input the crushed object and formed to be inclined downward to transport the crushed object to the hopper through the supply pipe;
a transfer screw extending in the longitudinal direction perpendicular to the lower portion of the hopper and disposed inside a moving tube integrally formed with the hopper, and transferring the crushed object input through the supply tube;
a dispersing impeller disposed under the transfer screw and rotating in a predetermined direction to disperse the pulverized object to move the pulverizing space;
a turntable that horizontally rotates the crushing object located in the crushing space, and a grinding roller that rotates in a vertical direction intersecting the turntable to crush the crushing object to generate a pulverized product;
a blower that introduces external air and transfers a flow rate to the pulverizing space to move the pulverized material in a vertical direction and disperse it to the upper portion of the housing;
a rotary rotor for selectively classifying the scattered pulverized material by rotating in a horizontal direction around a vertically arranged rotary shaft;
a plate-shaped carbide plate supported on a horizontal axis arranged horizontally to control the size of the particles of the pulverized product discharged by adjusting the separation distance from the rotary rotor; and
Including; outlet for discharging the pulverized material having a uniform particle size;
The rotary rotor is
a rotor formed to have a predetermined length in a horizontal direction intersecting the rotation axis; and
Including; and a rotating blade formed between the upper plate fixedly supported on the horizontal axis and the end of the rotor.
The rotary blade is
A long rectangular body extending in a vertical direction,
Includes; wing portions integrally formed with the body portion at both ends of the body portion;
The wing portion,
a pentagonal first wing portion formed at one end of the body portion and disposed on the carbide plate side, the first wing portion having a pentagonal shape including an upwardly inclined surface sloping upward around the body portion and a vertical surface connected to the upwardly inclined surface; and
Formed at the other end of the body portion and disposed on the transfer screw side, the pentagonal shape of the first wing portion is the same as that of the first wing portion of the pentagonal shape consisting of a downwardly inclined surface sloping downward around the body portion, and a vertical surface connected to the downwardly inclined surface Grinding device using air flow classification, including; second wing portion. delete According to claim 1,
The carbide plate is
It is disposed between the upper plate and the rotary blade,
When the distance between the carbide plate and the rotary blade is widely adjusted using the adjusting means provided on the horizontal shaft, the precision is lowered and the pulverized material having a large particle size is discharged,
When the distance between the carbide plate and the rotary blade is narrowed by using the adjusting means provided on the horizontal shaft, the precision is increased and the pulverized material having a small particle size is discharged. 4. The method of claim 3,
Including; and a guide plate for guiding the pulverized material falling into the hopper without passing through the separation distance to the transfer screw.
The guide plate is
Grinding device using airflow classification, having a length smaller than 1/2 around the moving pipe and inclined at 30° to 50° at a portion where the hopper and the supply pipe are connected. According to claim 1,
The air guide further comprises;
Including; and a plurality of scrapers spaced apart from the fixing part fixed to the air guide at regular intervals to correspond to the crushing space;
The scraper is
A grinding device using airflow classification, which rotates in response to the horizontal rotation of the turntable, and is capable of adjusting the vertical height.

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