KR102614956B1 - Twist ball mill apparatus - Google Patents

Abstract

The present invention provides a twist ball mill device, which includes a base frame; A plurality of rotating rollers installed spaced apart from each other on the upper surface of the base frame; A power module installed to rotate at least one of the rotating rollers; A rotating frame installed over the rotating rollers to rotate with the rotation of the rotating rollers; It is disposed inside the rotating frame, accommodates raw materials and steel balls, and includes a rotating drum fixed at an angle so that both sides are symmetrical on the side, so that the steel balls move back and forth on both sides as both sides alternately rise or fall. This is done so that the raw materials are pulverized.

Description

Twist ball mill apparatus}

The present invention relates to a ball mill device, and more specifically, the rotating drum is arranged so that both ends are symmetrical, and the steel balls in the rotating drum move back and forth by electromagnetic force, crushing the raw material, and crushing the raw material. It relates to a twist ball mill device in which the noise generated when grinding is measured and analyzed by acoustic means to determine the degree of pulverization and completion time.

In general, various methods have been proposed to process large-particle objects or materials into fine-particle powder, and in the industrial field, such mechanical devices are generally classified as grinders.

Grinders are roughly divided into coarse crushers, intermediate crushers, crushers, and fine crushers depending on the size of the target solid particles, but a crusher in the narrow sense is often included in a fine crusher. Therefore, it is widely practiced to broadly divide crushers in a broad sense into two types: crushers and crushers in a narrow sense. Also, depending on the operating conditions, it is divided into dry grinder and wet grinder, or batch type and continuous type. The power given to the grinder is applied to the powder through the grinding medium to grind it, but in this case, compression, bending, layer pushing, impact, friction, etc. are considered as the form of force action. In an actual shredder, several of these are thought to work in combination.

Types of these crushers include jaw crushers, hammer mills, corn mills, rod mills, ball mills, and jet crushers. Among them, a type of crusher called a ball mill rotates a steel ball along with the material in a rotating cylinder and crushes the material through the impact of the steel ball movement.

For example, such a conventional ball mill device may include a rotating drum into which steel balls and raw materials are input, and a drive module that rotates the rotating drum in place. Therefore, when the rotating drum is rotated in place by the drive module, the steel balls in the rotating drum and the raw material may rub against each other, causing the raw material to be pulverized.

However, when the rotation speed of the rotating drum exceeds a certain level, a phenomenon occurs in which the steel balls and raw materials in the rotating drum are pulled to one side by centrifugal force and clump together, which causes the problem that the pulverization of the raw materials by the steel balls cannot proceed. there is.

In addition, since the rotating drum is sealed so that the inside is not visible, there is a problem in that it is difficult to determine the degree of pulverization of the raw materials, making it difficult to determine when the work is completed.

Republic of Korea Patent No. 10-1746057 (announced on June 13, 2017) Republic of Korea Patent No. 10-1728768 (announced on April 20, 2017)

The purpose of the present invention, which was devised to solve the above-mentioned problems, is to install the rotating drum so that when one side goes up when viewed from the front, the other side goes down while the rotating drum rotates, so that the steel balls and raw materials are moved to both sides by their own weight and gravity. The aim is to provide a twist ball mill device that grinds the raw materials while moving back and forth.

In addition, another object of the present invention is to install electromagnets attached to both sides of the rotating drum to alternately generate electromagnetic force, so that the steel balls reciprocate on both sides by the electromagnets alternately generated while the rotating drum rotates. The aim is to provide a twist ball mill device that grinds raw materials while grinding them.

Another object of the present invention is to install an acoustic module near the rotating drum to measure the noise inside the rotating drum, so that the amplitude and frequency of the noise generated during the grinding process are collected and read, and the low and regular level of the noise is measured. The aim is to provide a twist ball mill device that can determine the progress of grinding according to the present invention.

In order to achieve the above-described object, a twist ball mill device according to the present invention includes: a base frame; A plurality of rotating rollers installed spaced apart from each other on the upper surface of the base frame; A power module installed to rotate at least one of the rotating rollers; A rotating frame installed over the rotating rollers to rotate with the rotation of the rotating rollers; It may include a rotating drum that is disposed inside the rotating frame, accommodates raw materials and steel balls, and is fixed at an angle so that both sides of the drum are symmetrical.

Here, while the rotary drum rotates, when the left side of the side goes up, the right side goes down, and when the right side goes up, the left side goes down, and the raw materials and steel balls in the rotary drum move back and forth to both sides, causing the raw materials to be pulverized.

In addition, electromagnets mounted on both sides of the rotating drum may be further included.

Therefore, while the rotary drum rotates, electricity is applied to the electromagnet on the side that goes down on the side, and the electromagnetic force pulls the steel ball, and the steel ball moves back and forth to both sides and the raw material is pulverized.

In addition, an acoustic module including a microphone installed near the rotating drum to collect noise during grinding, and a controller that receives the noise collected by the microphone and distinguishes between sounds that change during grinding to determine when grinding is completed; It may further include.

Additionally, the power module may include a power transmission member connected to at least one of the rotation rollers, and a power source installed to rotate the rotation roller via the power transmission member.

In addition, the rotating frame is a ring-shaped main frame disposed on both sides and mounted over the rotating rollers, a bar-shaped connection frame installed at a certain angle connecting the main frames on both sides, and a rotating frame arranged at an angle to the main frame. It may include a fixed frame fixed by connecting the side ends of the drum.

In addition, it may include a first guide and a second guide that are respectively disposed at both ends of the rotating roller and are installed adjacent to each other to prevent displacement while the main frame is inserted and rotates in place.

As described above, according to the present invention, while the rotating drum rotates, the left and right sides alternately rise or fall, and electricity is applied to the electromagnet on the lowering side to generate electromagnetic force, and the steel ball is moved by gravity, self-weight, and electromagnetic force. Since the raw material is pulverized while moving back and forth on both sides, there is an effect that smooth pulverization can be performed even if the rotation speed of the rotating drum in place is faster than before.

In addition, the sound module measures the noise generated during grinding inside the rotating drum and reads the degree to which the noise is softened and lowered through changes in the amplitude and frequency of the noise, even if the inside of the rotating drum cannot be seen with the naked eye. This has the effect of being able to determine the completion point of pulverization.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention along with the detailed description of the invention, so the present invention is limited only to the matters described in such drawings. It should not be interpreted as such.
1 is a diagram schematically showing a twist ball mill device according to a preferred embodiment of the present invention.
Figure 2 is a photograph of the ball mill device of Figure 1 actually manufactured.
FIG. 3 is a diagram showing the rotational movement of the rotating drum and the reciprocating movement of the steel ball in FIG. 1.

Hereinafter, with reference to the attached drawings, preferred embodiments will be described in detail so that those skilled in the art can easily practice the present invention. Additionally, among the configurations mentioned in various embodiments, similar configurations and related configurations in each embodiment may be replaced, replaced, or added. However, when explaining in detail the operating principle of a preferred embodiment of the present invention, if a detailed description of a related known function or configuration is judged to unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

<Configuration>

As shown in Figures 1 and 2, the ball mill device according to a preferred embodiment of the present invention includes a base frame 100, a power module 200, a rotating roller 300, a rotating frame 400, and a rotating drum 500. , It may be configured to include an electromagnet 600 and an acoustic module 700.

First, the base frame 100 may be equipped with a power module 200, a rotating roller 300, and a rotating frame 400. For example, the base frame 100 is a flat plate with a certain area, rotating rollers 300 are installed on both sides of the upper surface, a rotating frame 400 is installed on the rotating roller 300, and a power source ( 210) and a power transmission member 220 may be installed. As another example, this base frame 100 is manufactured in a box shape as shown in FIG. 2, a rotating roller 300 and a rotating frame 400 are installed on the upper surface, and a power module 200 may be installed inside the box. Additionally, wheels 110 for movement may be installed at the bottom of the base frame 100.

Next, the power module 200 may be installed to rotate the rotating roller 300 mounted on the upper surface of the base frame 100 in place. For this purpose, the power module 200 is equipped with a power source 210 installed to operate by applying electricity from the outside, and a power transmission member 220 installed to transmit the power generated from the power source 210 to the rotating roller 300. You can. Here, the power transmission member 220 may be of a general configuration including gears, belts, chains, etc. that connect the power source 210 and the power transmission member 220. Additionally, the power transmission member 220 may be installed to rotate any one of the two rotating rollers 300 installed on both sides of the base frame 100, respectively.

Next, the rotating roller 300 can be installed to rotate in place by the power module 200. To explain in detail, two rotating rollers 300 may be installed to rotate in place, one on each side of the upper surface of the base frame 100. Of these two rotating rollers 300, at least one rotating roller 300 is connected to the power transmission member 220, and the rotating roller 300 connected to the power transmission member 220 receives the power generated from the power source 210. It can be installed to rotate in place. If one rotating roller 300 becomes a driving roller, the remaining rotating roller 300 can become a driven roller, and this driven roller is rotated by the rotating frame 400 rotated by the driving roller. This can be done, and a detailed explanation will be provided later.

In addition, a first guide 310 and a second guide 320 may be installed on the rotating roller 300 at both ends in the longitudinal direction, respectively. The first guide 310 and the second guide 320 have a ring shape with a larger diameter than the middle portion of the rotating roller 300, and can be installed to rotate together with the rotating roller 300. The main frame 410 is inserted between the first guide 310 and the second guide 320 and is mounted to rotate in place, thereby preventing the rotating main frame 410 from being displaced.

Next, the rotating frame 400 has a cylindrical shape with an open interior, a rotating drum 500 is fixed therein, and can be installed to rotate in place by a rotating roller 300. To explain in detail, the rotating frame 400 may be cylindrical with only a skeleton consisting of the main frame 410, the connecting frame 420, and the fixed frame 430.

The main frame 410 has a ring shape and may be a pair arranged spaced apart from each other.

The connection frame 420 has a bar shape and is arranged to connect a pair of main frames 410 disposed on both sides, and may be installed in multiple numbers at a certain angle along the main frame 410.

The fixing frame 430 may be installed to fix the rotating drum 500 to the main frame 410. For this purpose, one side of the fixed frame 430 is fixed to the main frame 410, and the other side is fixed to one end of the rotating drum 500, and one side is fixed to each of the main frames 410 on both sides and the rotating drum 500 on both sides. They can be installed symmetrically one by one. In addition, as shown in FIG. 1, the fixed frame 430 connects the main frame 410 and the rotating drum 500 with the small-diameter rotating drum 500 disposed at an angle inside the large-diameter rotating frame 400. It can be installed.

In addition, the rotating frame 400 may be manufactured in a cylindrical shape with only both sides open or in a cylindrical shape with both sides closed.

As shown in FIG. 1, this rotating frame 400 can be installed with the front and rear main frames 410 placed on the left and right rotating rollers 300. Therefore, when one rotation roller 300 is driven and rotated, the main frame 410 rotates in place, and the other rotation roller 300 can be installed to follow rotation by the in place rotation of this main frame 410. there is.

Next, the rotating drum 500 can be mounted inside the rotating frame 400 with both ends symmetrically and obliquely arranged. At this time, both ends of the rotating drum 500 may be fixed to the main frame 410 via the fixed frame 430. Accordingly, when the rotating drum 500 rotates in place together with the rotating frame 400, one side of the rotating drum 500 may be positioned higher than the other side or the other side may be positioned higher than one side depending on the rotation angle. For this reason, while the rotary drum 500 rotates, the raw material M and the steel balls S within the rotary drum 500 move back and forth from one side to the other side or from the other side to one side, thereby performing a grinding action.

Next, as shown in FIG. 3, electromagnets 600 are attached to both sides of the rotating drum 500, and can be installed to apply external electricity. Here, the electromagnets 600 on both sides may be applied alternately while the rotating drum 500 rotates. For example, as shown in FIG. 3(a), when the left side is located lower than the right side while the rotary drum 500 rotates and the raw material (M) and steel balls (S) in the rotary drum 500 are moved to the left by gravity. As electricity is applied to the switch to the electromagnet 600 on the left, the phenomenon of the steel ball S in the rotating drum 500 being tilted to the left may be further aggravated by the electromagnetic force. In addition, as shown in FIG. 3(b), while the rotary drum 500 rotates, the right side is located lower than the left side, and when the raw material (M) and steel ball (S) in the rotary drum 500 are tilted to the right by gravity, the right side By applying electricity to the electromagnet 600, the phenomenon of the steel ball S in the rotating drum 500 being tilted to the right may be further aggravated by the electromagnetic force.

In this way, while the height of the left or right part is alternately raised and lowered while the rotary drum 500 rotates, electricity is also applied alternately to the electromagnet 600, so that the steel ball moves more than the left and right movement of the raw material M within the rotary drum 500. Since the left and right movement of (S) proceeds at a faster speed, the grinding effect of the raw material (M) can be significantly increased.

Finally, the sound module 700 may be disposed close to the rotating drum 500 as shown in FIG. 1 and installed to collect sound generated while grinding is in progress within the rotating drum 500. This sound module 700 includes a microphone that collects sounds generated during grinding in the rotating drum 500, and a controller that determines the extent of grinding progress and the completion point of grinding by measuring changes in the sounds collected during grinding. It can be included. Here, the microphone is installed on the base frame 100 as shown in FIG. 1, and a controller connected wirelessly or wired to the microphone can be installed in a nearby work space away from the rotating drum 500 so that the worker can observe it. The controller can be programmed to determine the degree of grinding and completion time by taking into account the fact that the sound during the initial grinding process is rough and loud, and as grinding progresses, the sound becomes softer and lower, and reports it to the operator when it is completed.

<Operation>

Hereinafter, the operation of the ball mill device according to a preferred embodiment of the present invention will be briefly described.

First, raw materials (M) and steel balls (S) are introduced into the rotating drum 500.

Next, the power source 210 is operated to drive the one-side rotating roller 300 via the power transmission member 220.

Next, the main frame 410 mounted on the rotating roller 300 rotates, and ultimately the rotating frame 400 and the rotating drum 500 rotate. While the rotary drum 500 rotates, if the left side of the rotary drum 500 goes up, the right side may go down, and if the right side goes up, the left side may go down. As a result, the raw material (M) and steel balls (S) in the rotating drum 500 move downward each time it rotates due to their own weight and gravity.

Next, electricity is alternately applied to the electromagnets 600 mounted on both sides of the rotating drum 500 to generate electromagnetic force alternately. To explain in detail, while the rotary drum 500 rotates, when the right side of the side goes down, electricity is applied to the electromagnet 600 mounted on the right side to generate electromagnetic force, and when the left side goes down, the electromagnet 600 mounted on the left side ) can generate electromagnetic force by applying electricity to it. Accordingly, the steel ball S in the rotating drum 500 may move back and forth by electromagnetic force as well as its own weight and gravity. At this time, since the moving speed of the steel ball (S) is faster than that of the raw material (M), the raw material (M) may be pulverized by the steel ball (S).

Finally, the noise generated while the rotating drum 500 rotates is measured and judged by the sound module 700 to determine the degree of pulverization and the time of completion. To explain in more detail, a microphone installed near the rotating drum 500 may collect noise generated during the grinding process in which the rotating drum 500 rotates, and the controller may receive this noise. Afterwards, the controller may analyze sounds that start from the rough and loud sound generated during initial grinding to the sound that gradually becomes softer and smaller as grinding progresses. In addition, the controller may determine the completion point of grinding by measuring the degree of softer and smaller sound, stop the rotation of the rotary drum 500 when grinding is completed, and report it to the operator.

As described above, a person skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the above-described embodiments should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the patent registration claims described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the patent registration claims and the equivalent concept should be interpreted as being included in the scope of the present invention. do.

100: Base frame 110: Wheels
200: Power module 210: Power source 220: Power transmission member. 300: Rotating roller
310: 1st guide 320: 2nd guide.
400: Rotating frame 410: Main frame 420: Connection frame 430: Fixed frame.
500: Rotating drum 600: Electromagnet
700: Sound module
M: Raw material
S:Steel ball

Claims (6)

In a ball mill device,
Base frame (100);
A plurality of rotating rollers 300 installed on the upper surface of the base frame 100 to be spaced apart from each other;
A power module (200) installed to rotate at least one of the rotating rollers (300);
A rotating frame (400) installed over the rotating rollers (300) to rotate with the rotation of the rotating rollers (300);
A rotating drum (500) is disposed inside the rotating frame (400), accommodates the raw material (M) and the steel ball (S), and is fixed at an angle so that both sides are symmetrical on the side,
While the rotating drum 500 rotates, when the left side of the rotary drum 500 goes up, the right side goes down, and when the right side goes up, the left side goes down, and the raw material (M) and the steel ball (S) in the rotating drum (500) move back and forth to both sides to collect the raw material. (M) is crushed,
It further includes electromagnets 600 mounted on both sides of the rotating drum 500,
While the rotary drum 500 rotates, electricity is applied to the electromagnet 600 on the side that goes down on the side, and the electromagnetic force pulls the steel ball S, and the steel ball S moves back and forth on both sides, crushing the raw material M. A twist ball mill device characterized in that.
delete In claim 1,
An acoustic system that includes a microphone installed near the rotating drum 500 to collect noise during grinding, and a controller that receives the noise collected by the microphone and distinguishes between sounds that change during grinding to determine when grinding is complete. A twist ball mill device further comprising a module (700).
In claim 1,
The power module 200 includes a power transmission member 220 connected to at least one of the rotating rollers 300, and a power source 210 installed to rotate the rotating roller 300 through the power transmission member 220. A twist ball mill device comprising:
In claim 1,
The rotating frame 400 has a ring shape, a main frame 410 disposed on both sides and mounted over the rotating rollers 300, and a number of bar-shaped bars installed at a certain angle by connecting the main frames 410 on both sides. A twist ball mill device comprising a connection frame (420) and a fixed frame (430) fixed by connecting the main frame (410) with the side end of the rotary drum (500) disposed at an angle.
In claim 1,
A first guide 310 and a second guide 320 are disposed on both ends of the rotating roller 300 and installed adjacent to each other to prevent displacement while the main frame 410 is inserted and rotates in place. A twist ball mill device characterized in that.