KR200385049Y1 - Shattering Machine Comprising Apparatus for Conducting Grain - Google Patents

Abstract

The present invention relates to a mill including a sealed material input device for feeding grain material from the hopper to the grain grinding chamber.

That is, in a pulverizer including a hopper 10 and a pulverization chamber 60 of the material flowing through the hopper, it is located between the hopper 10 and the pulverization chamber 60, the hopper 10 A rotating guide 22 having a cylindrical rotating surface 32 having an upper hole 37 communicating with the lower hole and a lower hole communicating with the grinding chamber 60; A plurality of rotary blades (1, 2, 3, 4, 5, 6) are formed radially from the pillar of the central portion 42, the rotary blades are in close contact with the inner peripheral surface 32 of the rotary guide 22 to rotate , The rotating body 40; It is characterized in that it further comprises a material injection device consisting of a drive means (30, 31) for rotating the rotating body 40 in the rotating guide 22, further characterized in that the rotating guide 22 It is characterized in that the material coolant inflow passage 52 is formed.

Description

Grinder with material input device {Shattering Machine Comprising Apparatus for Conducting Grain}

The present invention relates to a pulverizer including a material input device, and more particularly, to a pulverizer including a sealed material input device for feeding the grain material from the hopper to the grain grinding chamber.

In general, the mill grinds various grains added to the inorganic feed or organic fertilizer, including rice husk separated from brown rice. At this time, a representative case of the input method of the grain material to be crushed is a natural falling method as shown in FIG.

The material input method as shown in FIG. 1 has a problem in that grain materials cannot be input by a predetermined amount into the grinding chamber. In addition, there is also a problem that the back flow due to the centrifugal force due to the high-speed rotation in the grinding chamber.

An example of an apparatus for forcibly feeding the input of grain material is shown in FIG. 2. 2, the conveying part, the crushing part, and the driving part are largely shown. In Figure 2, the conveying unit, characterized in that the conveying screw is rotated horizontally by receiving the power of the motor is installed horizontally in the lower hopper of the upper and lower narrow shape, and the conveying conveyor is installed incidentally.

Looking at the operation process of the conventional grain grinding device configured as described above, when the motor of the transfer unit is first driven to rotate the feed screw, the grain contained in the hopper is guided to one side along the conveyor is transferred to the crushing unit.

By using the transfer screw as shown in Figure 2, there is an effect of transferring the grain material to the grinding chamber by a relatively constant amount. However, it does not solve the problem that occurs when the grain grinding cutter makes a high speed rotation of 5000 or more times per minute in the grinding chamber. When a high speed rotation is required, the pressure inside the grinding chamber needs to be formed differently from the external pressure in many cases. However, the conventional feed screw input method as shown in FIG. have.

Furthermore, even when it is necessary to mix the coolant with the material, if the material input method is not a sealing method, there is a problem that the outflow of the coolant may occur.

The present invention is to solve the problems as described above, even in the grinder pulverized at high speed rotation pressure of the hopper and the pulverization chamber may be different, providing a grinder including a sealed material input device that can be added to the material coolant Its purpose is to.

The present invention for achieving the above object, in the pulverizer including a hopper 10 and the grinding chamber 60 of the material flowing through the hopper, the hopper 10 and the grinding chamber 60 A rotary guide 22 positioned between the upper hole 37 and the lower hole communicating with the pulverization chamber 60, and a rotating surface 32 disposed therebetween; A plurality of rotary blades (1, 2, 3, 4, 5, 6) are formed radially from the pillar of the central portion 42, the rotary blades are in close contact with the inner peripheral surface 32 of the rotary guide 22 to rotate , The rotating body 40; It is characterized in that it further comprises a material injection device, which is composed of drive means (30, 31) for rotating the rotor 40 in the rotation guide (22).

Another feature of the present invention is that a key groove 41 is formed in the center 42 column of the rotating body; The inner circumferential rotating surface 32 of the rotating guide 22 is cylindrical, and is smaller than the area of the center 42 column of the rotating body 40 at the center of one plane 36 of the rotating surface and the key groove 41. Rather, a hole for the rotating shaft is formed; The rotating body driving means includes a rotating shaft fitted into the key groove 41 of the rotating body through the hole for the rotating shaft, a motor 30, and a power transmission means 31 between the motor and the rotating shaft. It consists of).

Yet another feature of the present invention is that the coolant inflow passage 52 extending from one side of the rotating surface 32 to the external coolant input device 50 is further formed on the rotor guide 22.

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

3 is a schematic cross-sectional view of a grinder including a material input device according to the present invention. 3 shows the hopper 10, the material input device 20, the motor 30, the coolant input device 50, and the grinding chamber 60 of the pulverizer.

Material input device 20 which is a characteristic component of the present invention is largely, a rotating body consisting of a rotary body center 42 and radially formed rotary blades (1, 2, 4, 6); An inner circumferential surface of the rotating body guide 22; And rotation drive means (30, 31, etc.).

The inner circumferential rotating surface 32, the rotating center portion 42, and the rotary blades (1, 2, etc.) form a space (12, etc.) for conveying the grain material. The number of rotor blades should be at least three to maintain the seal.

In addition, a coolant inflow passage 52 is further formed between the rotor guide 22 and the coolant input device 50.

4 is a perspective view of a cylindrical rotating body of the material injection device according to an embodiment of the present invention, Figure 5 is a cylindrical rotating body guide according to an example of the present invention.

4, the key hole 41 is formed in the cylindrical center part 42 of the rotating body 40. As shown in FIG. In addition, radial vane-shaped rotary vanes 1 to 6 protrude from the pillar of the center of the rotor 42. The cross section (hatched portion) of the rotating body 40 forms a circle. When the rotating shaft corresponding to the key hole 41 is fitted, the rotating body 40 can rotate in the rotating guide 22.

The appearance of the center 42 column of the rotating body may be a hexagonal column rather than a cylindrical shape. In order to maintain a constant size of the grain material transport space, a symmetric cylindrical center column is preferable. The formation of the rotary vanes is also preferably 4 or 6 symmetrically from the center of the rotor 42.

In the present invention, the rotating body 40 may be easily replaced because it is separated from the rotating shaft. Therefore, it is possible to select a rotating body having a space size between the kind of material fed into the grinder and the rotary vane suitable for the amount to be fed per unit time.

In other words, according to the height h of the rotary vanes shown in FIG. 4 and the distance l between the rotary vanes 2 and 3, the amount of grain that can be contained between the rotary vanes is determined. Naturally, the larger the diameter of the center 42 column of the rotor, the smaller the height h of the rotor blade, and the smaller the space between the rotor blades. As a result, according to the present invention it is possible to selectively produce a rotating body having a suitable space size according to the input amount per unit time with a grinder.

Referring to FIG. 5, a rectangular through hole 37 and a coolant inflow passage 52 are formed in the circumferential surface of the rotation surface 32 of the rotation guide. Since the material input hole 37 communicates with the outlet 11 of the hopper 10 shown in FIG. 3, it can be referred to as an upper hole. The size of the upper hole 37 preferably corresponds to the spacing between the rotor blades 1, 2.

Although reference numerals are not shown in FIG. 5, the lower guide (material outflow hole) in communication with the grinding chamber 60 is also formed in the rotation guide 22. Easy manufacturing method of the rotation guide shown in Figure 5 is to make a cylindrical hole in the rectangular parallelepiped, and to form a rectangular hole in the upper and lower again. In addition, to form a coolant inlet passage on the side.

Other means for sealing and means for smooth rotation of the rotor can be added. For example, when the rotating body 40 is cylindrical and the material conveying space becomes square, while the inlet of the grinding chamber 60 is circular, that is, the shape of the lower hole of the rotation guide and the inlet of the grinding chamber is different. May require a connector for sealing. In addition, it is also necessary to form a lower hole wider than the area between the rotary blades so that the coolant can be safely introduced into the grinding chamber even when the material is agglomerated integrally between the rotary blades.

As another embodiment of the rotating body 40, a conical or spherical shape is possible. However, if the cross section of the rotating body is a circle, it can be rotated in the rotating guide, so that there is no problem in rotating the grain material from the hopper to the grinding chamber. For convenience of manufacture, the rotor 40 is preferably cylindrical.

The inner circumferential surface 32 of the rotating guide must correspond to the shape of the rotating body 40 to become a sealed material input device that can block the pressure of the grinding chamber from the outside. As the rotating body 40 is preferably cylindrical, the inner circumferential rotating surface 32 of the rotating guide is also preferably cylindrical. Rotating blades (1, 2, 3, 4, 5, 6) formed in a radial shape is formed to rotate in close contact with the inner peripheral surface 32 of the rotation guide (22). Thus, the edge surface of the rotary vane is curved.

The driving means for rotating the rotor 40 may basically consist of a motor, a shaft, and a means for transmitting rotational power. The shaft may be formed integrally with the rotating body 40, and preferably, may be separately formed so that the rotating body can be easily replaced. In Fig. 3, the shaft is represented by a black dot in the center, and the rotational power transmission means 31 is represented by a dotted line.

As an example of the present invention, when the rotating shaft is formed separately from the rotating body, a key hole 41 is formed in the center 42 column of the rotating body 40. Since the keyhole is not a circle, the shaft fitted therein does not idle, and is preferable as a relatively simple shape, but other complicated shapes are possible.

On the other hand, in the center of one plane 36 of the cylindrical rotating surface 32, a hole for the rotating shaft smaller than the area of the center 42 column of the rotating body 40 is formed. The hole for the rotating shaft may be of a size sufficient for the rotating shaft to be inserted and rotated. The opposite plane 35 may allow the shaft to extend outwardly, or may be equipped with a rotating protrusion or bearing on the inner surface.

The driving means of the rotating body includes a rotating shaft fitted into the key groove 41 of the rotating body 40 through a hole for the rotating shaft of the rotating guide 22, a motor 30, and the motor. It can be comprised by the transmission belt 31 between rotation shafts. An outer case may be provided in the material input device so as to conveniently carry and install the rotating body driving means, the rotating guide, and the like as a whole.

Meanwhile, liquid nitrogen or liquefied carbonic acid gas may be used as the coolant injected from the coolant input device 50. The coolant cools the pulverized material introduced to prevent oxidation of the material during pulverization, and also serves to cool the heat generated during the pulverization. As is known, such coolants are highly vaporizable, so the entire material input device must be sealable.

Referring to the operation of the grinder including a material input device according to the present invention, as follows.

When the grain material passes through the lower end 11 of the upper and lower narrow hopper 10 and also passes through the upper hole 37 of the rotary guide 22, the grain material enters the space between the wings of the rotating body 40. In FIG. 3, once, the grain enters into the space 61 between the first and sixth rotary vanes.

When the rotation of the motor 30 is transmitted to the rotating shaft fitted to the key hole 41 through the transmission belt 31, the rotating body center 42 rotates. Then, the rotary blades protruding radially from the center of the rotor 42 also rotate, so that the material transfer space 61 moves through the next transfer spaces 12 and 23. Coolant may be introduced into the portion of the transfer space 12 in the middle. When it moves further and reaches the conveyance space 34 of the position where the lower hole of the rotation guide 22 was formed, grain material falls and enters the grinding chamber 60. As shown in FIG.

This process can be repeated while the grain is in the hopper. Naturally, when there is no grain in the hopper, the motor 30 does not need to operate, and the rotor 40 does not rotate, but only serves to seal the grinding chamber.

The present invention having the configuration as described above, there is an effect that can be sealed from the outside while the grain material is continuously input by a predetermined amount. Therefore, the internal pressure of the grinding chamber can be kept different from the external pressure, so that the grinder according to the present invention can perform an effective grinding operation even at a high speed rotation.

Moreover, since the material input device which maintains a sealing while the coolant input passage is formed is included, the effect obtained by mixing a grinding material and a coolant can also be anticipated.

Incidentally, the material input device employed in the pulverizer of the present invention has the advantage of being detachable from the pulverizer and easily replacing a rotating body which is an internal part. Thus, there is an effect that the amount of material to be added per unit time to the grinder can be appropriately adjusted.

1 is a view showing a conventional grinder.

2 is a view showing a material input device of a conventional grinder.

3 is a schematic cross-sectional view of a grinder including a material input device according to the present invention.

4 is a perspective view of a rotating body of the material injection device according to the present invention.

5 is a view of a rotation guide including a coolant input passage according to the present invention.

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

1,2,3,4,5,6: rotor blades

12,23,34,61: space between rotor blades

20: material input device 22: rotation guide

32: rotating surface 37: upper hole

40: rotating body 41: key hole for rotation

42: center of rotation body 52: coolant inlet passage

60: grinding chamber

Claims (3)

In a mill comprising a hopper 10 and a grinding chamber 60 of material introduced through the hopper: The rotary guide 22, which is located between the hopper 10 and the grinding chamber 60, has an upper hole 37 communicating with the hopper, a lower hole communicating with the grinding chamber, and a rotating surface 32. Wow; A plurality of rotary blades are formed radially from the central portion of the pillar, and the rotary blades are rotated by being in close contact with the rotary surface 32 of the rotary guide 22; And a material feeding device, which comprises a driving means for rotating the rotating body in the rotating guide. The method of claim 1, A key groove 41 is formed in the center 42 column of the rotating body; The rotary surface of the rotary guide 22 is cylindrical, at the center of one plane 36 of the cylindrical rotary surface 32 is smaller than the area of the center 42 pillars of the rotating body, larger than the key groove 41 A hole for the rotating shaft is formed; The rotating body driving means includes a rotating shaft fitted into the key groove 41 of the rotating body through the hole for the rotating shaft, a motor 30, and a power transmission means 31 between the motor and the rotating shaft. ) A grinder comprising a material injection device. The rotating body guide 22 according to claim 1 or 2, Characterized in that the coolant inlet passage 52 is further formed extending from one side of the rotating surface 32 to the external coolant input device, A grinder comprising a material injection device.