KR101498693B1 - Removing iron device - Google Patents

Abstract

The present invention discloses a de-ironing apparatus. The present invention includes a housing having a space formed therein to allow a silicon powder containing iron to pass therethrough and having an opening formed to communicate with the space and the outside, and an iron separator provided in the opening to separate the iron do.

Description

Removing iron device

The present invention relates to a de-ironing apparatus.

In general, the metal silicon is crushed to produce a small metal silicon ingot, and then the metal silicon ingot is crushed or ground to produce a silicon powder. At this time, metal silicon may contain various foreign substances. In the process of crushing or grinding, the silicon powder is moved in a state of being mixed with a metal silicon ingot or a silicon powder. Particularly, as described above, the foreign substance may contain an iron component.

If the iron component is contained as described above, the purity of the silicon powder can be lowered by mixing with the silicon powder which is finally produced. In such cases, when using silicon powder to produce other products, it may happen that they cause defects of other products or they do not manifest the inherent properties of other products.

Therefore, when the silicon powder is manufactured as described above, it is a very important problem to remove foreign matter from the silicon powder.
Such a demagnetizing device is disclosed in Japanese Patent Application Laid-Open No. 10-2010-0067323.

Embodiments of the present invention provide a de-ironing device for removing iron components contained in a silicon powder.

According to an aspect of the present invention, there is provided a method of manufacturing a silicon wafer, comprising: a housing having a space formed therein to allow silicon powder containing iron to pass therethrough and having an opening formed to communicate with the space and the outside; It is possible to provide a de-ironing device including a separating portion.

The iron separator may be installed to be inserted into or withdrawn from the opening.

The iron separating portion may include a fixed portion that can be installed in the opening portion and a magnetic force portion that is provided on the fixed portion and attaches to the outer surface by providing a magnetic force to the iron component.

The fixing part may include a fixed frame inserted into the opening and seated in the housing, and a cross bar installed in the fixed frame to cross the inner space of the housing and having the magnetic force part inserted therein.

In addition, a plurality of magnetic force portions may be provided, and the magnetic force portions may be spaced apart from each other and installed in the stationary portion.

In addition, the fixing unit may further include a handle that is formed so that the user can grasp the handle.

In addition, a plurality of the iron separating units may be provided, and the plurality of iron separating units may be stacked on each other.

Embodiments of the present invention can increase the purity of silicon powder by effectively and rapidly removing iron contained in the silicon powder.

1 is a perspective view showing a de-ironing apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view showing an embodiment of the primary iron separator shown in FIG. 1. FIG.
3 is a cross-sectional view taken along the line III-III in Fig.
FIG. 4 is a perspective view showing another embodiment of the iron separator shown in FIG. 1. FIG.
5 is a cross-sectional view taken along the line V-V in FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

1 is a perspective view showing a de-ironing apparatus 100 according to an embodiment of the present invention. 2 is a perspective view showing the first iron separator 130 of FIG. 3 is a cross-sectional view taken along the line III-III in Fig.

1 to 3, the de-ironing apparatus 100 may include a housing 110. At this time, a space is formed in the housing 110 to allow powder of various materials to move. Specifically, the silicon powder can move within the housing 110. In addition, the housing 110 may have an opening 110a formed to communicate with the space inside and the outside. At this time, the opening 110a may be formed in a hole shape, and a space inside the housing 110 may be connected to the outside.

The de-ironing apparatus 100 may include a cover 120 that is rotatably installed in the housing 110. At this time, the cover 120 may be installed to open and close the opening 110a, and the grip 120 may be formed on the cover 120 so that the user can grasp it.

The silicon powder may be prepared by crushing and crushing metal silicon. For example, the silicon powder can be produced by crushing and pulverizing the metal silicon. At this time, the metal silicon may be crushed several times after crushing the mass to be made into a silicon powder. In the case of the above-mentioned silicon powder, various foreign substances included in the metal silicon may be mixed with the silicon powder during the crushing and crushing process. Particularly, the foreign substance may include an iron (Fe) component, and the purity of the silicon powder may be lowered due to the foreign substance. Therefore, it is a very important part to remove the iron component in the production of the silicone powder as described above.

At this time, the de-ironing apparatus 100 may include an iron separating unit 150 installed in the housing 110. In particular, the iron separating unit 150 may be installed in the opening 110a of the housing 110 so as to be inserted into or withdrawn from the opening 110a.

The iron separating part 150 may include fixing parts 131 and 141 which can be installed in the opening part 110a of the housing 110. [ At this time, the fixing portions 131 and 141 may include fixing frames 131a and 141a provided in the housing 110. In addition, the fixing portions 131 and 141 may include grip portions 131b and 141b formed so that the user can grip. Particularly, the grip portions 131b and 141b can be installed on the fixed frames 131a and 141a and protrude to the outside of the housing 110. [

The iron separating part 150 may include magnetic parts 132 and 142 which are provided on the fixing parts 131 and 141 and which provide magnetic force to the iron component to be attached to the outer surface. Specifically, the magnetic force portions 132 and 142 may be formed in various ways. For example, the magnetic force portions 132 and 142 may include a permanent magnet that forms a magnetic field externally, and may include an electromagnet that receives electricity from the outside to form a magnetic field. Hereinafter, for convenience of explanation, the magnetic force portions 132 and 142 will be described in detail with respect to the case where permanent magnets are provided.

A plurality of the magnetic force parts 132 and 142 may be provided. At this time, the plurality of magnetic force parts 132 and 142 may be fixed to the fixed frames 131a and 141a.

A plurality of the iron separating units 150 may be provided. At this time, the plurality of iron separating parts 150 may be arranged to be stacked on each other. For example, the plurality of iron separating units 150 may include a first iron separating unit 130 and a second iron separating unit 140 disposed in a stacked manner with the first iron separating unit 130. At this time, the number of the plurality of iron separating units 150 is not limited to the above-described number, but may include three, four, or the like. Hereinafter, for convenience of explanation, a plurality of iron separating units 150 will be described in detail with reference to the case where the first iron separating unit 130 and the second iron separating unit 140 are included.

The first iron separating portion 130 and the second iron separating portion 140 may be stacked and arranged while being perpendicular to the moving direction of the silicon powder. Specifically, the first iron separator 130 may be disposed above the second iron separator 140.

The first iron separating part 130 may include a first fixing part 131 and a first magnetic force part 132 and 142. The second iron separating part 140 may include a second fixing part 141 and a second fixing part 141. [ And second magnetic force portions 132 and 142. [ The first fixing part 131 includes the first fixing frame 131a and the first fixing part 131b and the second fixing part 141 includes the second fixing frame 141a and the second fixing part 131b. 141b.

The first magnetic force part 132 of the first iron separating part 130 and the second magnetic force part 142 of the second iron separating part 140 may be arranged to be offset from each other. That is, each of the second magnetic force portions 142 may be disposed in a space between adjacent first magnetic force portions 132. [ Each first magnetic force part 132 may be disposed in a space between adjacent second magnetic force parts 142. [ At this time, the first magnetic force part 132 and the second magnetic force part 142 may be arranged on different planes as described above.

The first magnetic force part 132 and the second magnetic force part 142 are arranged so as to be offset from each other so that the iron component in the silicon powder passing between the adjacent first magnetic force parts 132 is once again discharged to the second magnetic force part 142).

Meanwhile, the de-ironing apparatus 100 formed as described above may be installed in a silicon powder manufacturing apparatus (not shown) for manufacturing silicon powder. At this time, the de-ironing apparatus 100 can separate the iron component from the crushed metal silicon by disposing the metal silicon on the moving path after crushing the metal silicon. It is also possible to separate the iron component contained in the silicon powder after the metal powder is produced by crushing the metal silicon. In particular, the de-ironing apparatus 100 may be installed on a hopper for packaging the silicon powder after the production of the silicon powder. At this time, the de-ironing device 100 is not limited to the above, and may be disposed at various positions on the apparatus for producing the metal silicon into the silicon powder. Hereinafter, for convenience of explanation, a description will be made mainly on the case where the de-ironing apparatus 100 is disposed on the movement path of the silicon powder.

Meanwhile, the silicon powder manufactured as described above can be manufactured through various processes while moving various devices. At this time, the silicon powder can move inside the housing 110. The silicon powder can move inside the housing 110 due to its own weight or move into the housing 110 through a separate device.

At this time, the silicon powder may contain many foreign substances therein. Particularly, the silicon powder can move to a state containing an iron component therein.

When the silicon powder moves as described above, the iron component may be removed by the iron separator 150. Specifically, the silicon powder may pass through a space inside the fixing portions 131 and 141 while moving inside the housing 110. At this time, the silicon powder may pass between the magnetic force portions 132 and 142 in the fixing portions 131 and 141. [ Specifically, the silicon powder may pass between the first magnetic force portions 132 and pass between the second magnetic force portions 142.

When the silicon powder moves as described above, the iron component contained in the silicon powder may be attached to the outer surface of at least one of the first magnetic force part 132 and the second magnetic force part 142.

After a predetermined time has elapsed in the movement of the silicon powder as described above, the operator opens the cover 120 and then grasps the grippers 131b and 141b of the iron separator 150 to remove the iron separator 150 And can be drawn out from the opening 110a. That is, after the cover 120 is opened, the operator grasps the first handle 131b and the second handle 141b to separate the first and second iron separators 130 and 140 from the openings 110a.

When the first iron separating part 130 and the second iron separating part 140 are drawn out as described above, they are attached to the surface of the first magnetic force part 132 and the surface of the second magnetic force part 142, The iron content can be removed. At this time, the operator can remove the iron component after grasping the surface of the first magnetic force part 132 or the second magnetic force part 142 by hand.

Therefore, the de-ironing apparatus 100 can effectively remove the iron component contained in the silicon powder, thereby increasing the purity of the silicon powder. In addition, the decalcification apparatus 100 can prevent the iron component from being inserted or dropped back into the silicon powder during manufacture of the silicon powder by removing the iron component by drawing the iron separator 150 into the inside.

4 is a perspective view showing another embodiment of the iron separator 150 shown in FIG. 5 is a cross-sectional view taken along the line V-V in FIG.

4 and 5, the iron separator 250 may include the fixing portions 231 and 241 and the magnetic force portions 232 and 242. [ At this time, the fixing portions 231 and 241 and the magnetic force portions 232 and 242 are the same as or similar to those described above, and thus a detailed description thereof will be omitted.

On the other hand, the fixing portions 231 and 241 have fixing frames 231a and 241a inserted into openings (not shown) to be seated in a housing (not shown) and grip portions 231b and 241b provided in the fixing frames 231a and 241a . At this time, a space may be formed in the fixed frames 231a and 241a. In addition, a seating part (not shown) may be provided inside the housing so that the fixing frames 231a and 241a are seated. Particularly, the seating part is formed to protrude from the inner surface of the housing to the inner space, and can support the fixed frames 231a and 241a.

The fixing portions 231 and 241 may include crossbars 231c and 241c provided on the fixing frames 231a and 241a to cross the inner space of the housing. At this time, magnetic force portions 232 and 242 can be inserted into the crossbars 231c and 241c. In particular, the magnetic force portions 232 and 242 can be inserted into the cross bars 231c and 241c so as to be drawn out.

The iron separating unit 250 may include a first iron separating unit 230 and a second iron separating unit 240 as described above. At this time, the first iron separating part 230 and the second iron separating part 240 may be formed to be laminated to each other.

Particularly, the first iron separating part 230 includes a first fixing part 231 and a first magnetic part 232. The first fixing part 231 includes a first fixing frame 231a, A cross bar 231c and a first handle 231b. The second fixing part 240 includes a second fixing part 241 and a second magnetic force part 242. The second fixing part 241 includes a second fixing frame 241a, 241c, a second handle portion 241b, and a second magnetic force portion 242. [

At this time, at least one of the first crossbar 231c and the second crossbar 241c may be provided. In particular, when a plurality of first crossbars 231c and second crossbars 241c are provided, the first crossbars 231c and the second crossbars 241c may be arranged to be offset from each other.

Meanwhile, the operation of the de-ironing device (not shown) formed as described above can be operated similar to that described above. Specifically, when the silicon powder is manufactured and moved, the silicon powder may pass through the inside of the housing. At this time, while the silicon powder passes through at least one of the first crossbar 231c and the second crossbar 241c, the iron component contained in the silicon powder passes through the first magnetic force portion 232 and the second magnetic force portion 242, To the surface of the first crossbar 231c or to the surface of the second crossbar 241c.

When a certain period of time has elapsed during the operation as described above, the opening (not shown) may be opened to open the opening. When the opening is opened as described above, the first handle 231b and the second handle 241b may be exposed to the outside. At this time, the operator can grasp the first handle 231b and the second handle 241b to pull the first and second iron separators 230 and 240 out of the opening.

After the first iron separating part 230 and the second iron separating part 240 are taken out to the outside as described above, the first magnetic force part 232 and the second magnetic force part 242 are respectively connected to the first crossbar 231c and And can be taken out from the second crossbar 241c. At this time, the first crossbar 231c may be disposed on a different plane from the first fixed frame 231a, and the second crossbar 241c may be disposed on a different plane from the second fixed frame 241a.

When the first magnetic force part 232 and the second magnetic force part 242 are removed as described above, the iron particles attached to the outer surface of the first crossbar 231c and the outer surface of the second crossbar 241c are separated by the first crossbar 231c And the outer surface of the second crossbar 241c. At this time, the operator can grasp the outer surface of the first crossbar 231c or the outer surface of the second crossbar 241c to remove the iron component.

Therefore, the iron removal device can effectively remove the iron component mixed with the silicon powder during the production of the silicon powder. In addition, since the fixing frames 231a and 241a and the cross bars 231c and 241c are disposed on different planes from each other, when the iron components attached to the surfaces of the cross bars 231c and 241c are removed, 231a, and 241a, it is possible to increase the efficiency of the work and shorten the working time.

Particularly, the iron removal device separates the magnetic force parts 232 and 242 from the cross bars 231c and 241c and separates the iron component from the surfaces of the cross bars 231c and 241c, thereby reducing the time required for the operation.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.

100: De-ironing device
110a: opening
110: Housing
120: cover
130, and 230:
131, 231:
131a, 231a: a first fixed frame
131b, 231b: a first handle
132, 232: a first magnetic force part
140, 240: secondary iron separator
141b, and 241b: and the second handle portion
141, 241:
141a, 241a: a second fixed frame
142, 242: a second magnetic force part
150, 250: iron separator

Claims (7)

A housing having a space formed therein for allowing the silicon-containing iron powder to pass therethrough and having an opening formed to communicate with the space and the outside; And
And an iron separating portion provided at the opening portion and having a magnetic force portion for separating the iron,
A plurality of iron separating portions are provided,
Wherein the plurality of iron separators are arranged to be stacked on each other,
And the magnetic force portions of the respective iron separating portions stacked on each other are arranged to be offset from each other. The method according to claim 1,
And the iron separating portion is installed to be inserted into or withdrawn from the opening. The method according to claim 1,
The iron-
Further comprising: a fixing part that can be installed in the opening,
Wherein the magnetic force portion is provided on the fixing portion and is attached to the outer surface by providing a magnetic force to the iron component. The method of claim 3,
The fixing unit includes:
A fixed frame inserted into the opening and seated in the housing; And
And a crossbar installed in the fixed frame to cross the inner space of the housing and having the magnetic force portion inserted therein. The method of claim 3,
A plurality of magnetic force portions are provided,
Wherein the magnetic force portions are spaced apart from each other and installed in the fixed portion. The method of claim 3,
The fixing unit includes:
And a grip portion formed so that a user can grasp it. delete

Images