Metal foreign matter separating device

Abstract

The metal foreign matter separation device according to the present invention is a metal foreign matter separation device for separating foreign matters in a raw material, and comprises: a housing configured so that the raw material passes through; and an electromagnet screen disposed inside the housing and configured to adhere foreign matter by a magnetic field. The electromagnet screen includes: a peripheral portion corresponding to an inner surface of the housing; and a plurality of wedge-shaped parts configured to traverse an inner space formed by the peripheral part, the peripheral part including: a peripheral body connected to the plurality of wedge-shaped parts; and a guide portion extending from the outer peripheral body and guiding the raw material to the plurality of wedge portions.

Description

Technical Field

[0001] The present invention relates to a metal foreign matter separation device, and more particularly, to a metal foreign matter separation device for separating metals. Background Art

[0002] It is known that there is an electromagnetic iron remover for separating magnetic foreign matter (iron removal) from secondary battery raw materials of the high nickel (High Ni) series. The electromagnetic iron remover may include an electromagnetic screen having an electromagnet function to separate magnetic foreign matter (e.g., iron and / or SUS, etc.) in the raw materials in the form of powder or slurry. When power is applied to the electromagnetic iron remover, a magnetic field is formed inside the electromagnetic iron remover, and a magnetic force is generated on the surface of the electromagnetic screen. The magnetic force generated on the surface of the electromagnetic screen can adsorb foreign matter in the raw material to the surface of the electromagnetic screen. The foreign matter in the raw material can be removed after being adsorbed by the surface of the electromagnetic screen. Summary of the Invention

[0003] Problems to be solved by the invention

[0004] One aspect of the present invention provides a metal foreign matter separation device with an improved structure.

[0005] One aspect of the present invention provides a metal foreign matter separation device with improved adsorption efficiency.

[0006] Methods used to solve problems

[0007] The metal foreign matter separation device according to the concept of the present invention is a metal foreign matter separation device for separating foreign matter from raw materials, which includes: a shell, which is configured to allow raw materials to pass through; and an electromagnet screen, which is arranged inside the shell and is configured to adhere the foreign matter through a magnetic field, the electromagnet screen includes: an outer portion, which corresponds to the inner surface of the shell; and multiple wedge-shaped portions, which are configured to cross the internal space formed by the outer portion, the outer portion includes: an outer body, which is connected to the multiple wedge-shaped portions; and a guide portion, which extends from the outer body and guides the raw material to the multiple wedge-shaped portions.

[0008] The guide portion may be arranged along an inner surface of the housing.

[0009] Alternatively, the guide portion may be configured to extend from the outer body toward the inner surface of the housing.

[0010] Alternatively, the guide portion may be configured to be spaced apart from the outer body by a certain angle θ, and the certain angle satisfies the following:

[0011] 90 degrees <θ < 180 degrees.

[0012] Alternatively, the electromagnetic screen includes: a first electromagnetic screen; and a second electromagnetic screen, which is arranged below the first electromagnetic screen, and a flow space is formed between the guide portions of the first electromagnetic screen and the second electromagnetic screen in a manner toward the wedge-shaped portion.

[0013] The guide portion may include: an edge portion arranged along the inner surface of the housing; and an inclined surface formed to be inclined downward from the edge portion toward the wedge-shaped portion.

[0014] Alternatively, the guide portion further includes a movable guide member protrudingly formed to face the inner surface of the housing in a manner to guide the vertical vibration of the electromagnetic screen.

[0015] Alternatively, the outer body includes: a plurality of wedge-shaped connecting portions, which connect the plurality of wedge-shaped portions; and a plurality of space-forming portions, which correspond to the separation spaces formed between the plurality of wedge-shaped portions and are connected to the wedge-shaped connecting portions, and the space-forming portions include openings connected to the separation spaces.

[0016] The plurality of wedge-shaped connection portions and the plurality of space forming portions may be arranged alternately.

[0017] Effects of the Invention

[0018] According to an aspect of the present invention, the fluidity of a raw material passing through an electromagnetic screen can be improved, thereby increasing the amount of foreign matter processed.

[0019] According to an aspect of the present invention, the iron removal rate of raw materials passing through the electromagnetic screen can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a side view of a metal foreign matter separation device according to an embodiment of the present invention, and is a partially cutaway view.

[0021] Figure 2 It is a diagram showing the configuration of an electromagnetic screen according to an embodiment of the present invention.

[0022] Figure 3 、 Figure 4 FIG. 1 is a diagram showing an electromagnetic screen according to an embodiment of the present invention.

[0023] Figure 5 FIG. 1 is a diagram showing a cross section of an electromagnetic screen according to an embodiment of the present invention.

[0024] Figures 6a to 6c It is a side view showing an electromagnetic screen according to one embodiment of the present invention.

[0025] Figure 7 FIG. 1 is a diagram showing the upper surface of an electromagnetic screen according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1: Metal foreign body separation device 10: Screen tube

[0028] 20: Screen housing 30: Electromagnet screen

[0029] 32: peripheral part 34: peripheral body

[0030] 35: Wedge-shaped connection part 36: Space forming part

[0031] 37: Opening 38: Guide

[0032] 38a: Edge 38b: Inclined surface

[0033] 40: Wedge DETAILED DESCRIPTION

[0034] The embodiments described in this specification and the compositions shown in the drawings are merely preferred examples disclosed in the present invention, and various modifications may be made at the time of filing this application to replace the embodiments and drawings in this specification.

[0035] In addition, the same reference numerals or symbols shown in the respective drawings of this specification represent members or components that perform substantially the same function.

[0036] In addition, the terms used in this specification are used to illustrate the embodiments and are not intended to limit and / or define the disclosed invention. Regarding the expression of the singular, unless there is a clear explanation in the context, the meaning of the plural is included. In this specification, the terms such as "including" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, parts or their combinations recorded in the specification, and do not preclude the possibility of the existence or increase of one or more other features or numbers, steps, operations, constituent elements, parts or their combinations.

[0037] In addition, terms including "first," "second," and other sequential terms used in this specification may be used to describe various components, but the components are not limited by these terms; these terms are used only to distinguish one component from another. For example, without departing from the scope of the technical solution of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of multiple related items or any one of the multiple related items.

[0038] In addition, terms such as "unit," "device," "block," "component," and "module" may refer to a unit that processes at least one function or action. For example, the terms may refer to at least one hardware component such as an FPGA (field-programmable gate array) or an ASIC (application specific integrated circuit), at least one software component stored in a memory, or at least one program processed by a processor.

[0039] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following drawings attached to this specification are intended to illustrate preferred embodiments of the present invention and to further facilitate understanding of the aforementioned invention and the technical concept of the present invention. Therefore, the present invention should not be interpreted solely in accordance with the contents described in these drawings.

[0040] Figure 1 This is a side view of a metal foreign body separation device according to an embodiment of the present invention, and is a partially cutaway view. Figure 2 It is a diagram showing the configuration of an electromagnetic screen according to an embodiment of the present invention.

[0041] The metal foreign matter separation device 1 can be configured to remove strongly magnetic foreign matter from the raw material. The metal foreign matter separation device 1 can be defined as an electromagnet iron remover. The raw material may include secondary battery raw materials. Secondary battery raw materials may include: positive electrode materials, including nickel (Ni), lithium cobalt oxide (LCO) and / or lithium iron phosphate (LFP) series, etc.; negative electrode materials, including carbon (CARBON), CNT and / or silicon dioxide series, etc.; and electronic materials other than these. Although secondary battery raw materials are given as examples, they are not limited to these and can be changed as needed. The metal foreign matter separation device 1 can filter out foreign matter in the raw material, namely magnetic foreign matter (iron particles), and the implementation of this function can be called "iron removal".

[0042] The metal foreign matter separation device 1 may include a mesh tube 10. A raw material in the form of powder or slurry may flow into the mesh tube 10 of the metal foreign matter separation device 1. For example, the raw material may be a secondary electron raw material of a high nickel series.

[0043] The metal foreign matter separator 1 may include a screen housing 20. The screen housing 20 may be configured to house a plurality of electromagnet screens 30 therein. The raw material flowing into the screen pipe 10 may move from above to below the screen housing 20. In other words, the raw material flowing into the screen pipe 10 may move within the channel 24 of the screen housing 20.

[0044] The metal foreign matter separator 1 may include multiple electromagnet screens 30. The multiple electromagnet screens 30 may be disposed within the screen housing 20. The electromagnet screens 30 may be configured to adsorb metallic foreign matter within the screen housing 20. Adsorption here may refer to the metallic foreign matter adhering to the electromagnet screens 30 through magnetism. The electromagnet screens 30 adsorb foreign matter particles with relatively greater magnetic properties than the raw material passing through the screen housing 20, while allowing the remaining particles to pass downward. If the raw material is defined as a weakly magnetic material, the metal foreign matter separator 1 with the electromagnet screens 30 can separate strongly magnetic materials, such as iron or SUS, from the raw material. Foreign matter separated by the electromagnet screens 30 may be defined as metallic foreign matter or foreign matter. Hereinafter, this will be referred to as foreign matter for ease of explanation. The magnetic force of the electromagnet screens 30 can be preset based on the magnetic strength of the foreign matter to be separated. When power is applied to the metal foreign matter separator 1, a magnetic field is formed within the device 1, generating a magnetic force on the surface of the electromagnet screens 30. The magnetic force generated on the surface of the electromagnetic screen 30 can adsorb foreign matter in the raw material to the surface of the electromagnetic screen 30. The foreign matter in the raw material can be removed after being adsorbed on the surface of the electromagnetic screen 30.

[0045] The screen housing 20 may have a channel 24 extending in the vertical direction. A plurality of electromagnetic screens 30 may be arranged spaced apart from each other in the vertical direction within the channel 24. The plurality of electromagnetic screens 30 may be arranged spaced apart from each other in the vertical direction.

[0046] The plurality of electromagnetic screens 30 may be arranged vertically inside the screen housing 20. That is, the plurality of electromagnetic screens 30 may be arranged from upstream to downstream along the moving direction of the raw material. The number of the plurality of electromagnetic screens 30 is not limited.

[0047] The plurality of electromagnetic screens 30 may be supported by the support rod 25. Specifically, the plurality of electromagnetic screens 30 include a coupling portion 42 formed at the center thereof, and the coupling portion 42 is connected to the support rod 25, thereby being supported by the support rod 25.

[0048] Figure 3 、 Figure 4 is a diagram showing an electromagnet screen according to an embodiment of the present invention, Figure 5 is a diagram showing a cross section of an electromagnetic screen according to an embodiment of the present invention, Figures 6a to 6c 1 is a side view showing an electromagnetic screen according to an embodiment of the present invention, Figure 7 FIG. 1 is a diagram showing the upper surface of an electromagnetic screen according to an embodiment of the present invention.

[0049] The electromagnetic screen 30 may be formed in a circular shape to correspond to the inner surface 22 of the screen housing 20. The electromagnetic screen 30 may include a peripheral portion 32 and a wedge-shaped portion 40.

[0050] The outer portion 32 may be formed in a ring shape. The outer portion 32 may be configured to correspond to the inner surface of the screen housing 20. The outer portion 32 may form an inner space therein.

[0051] There are multiple wedge-shaped portions 40, which can be configured to be supported on the outer portion 32 at both ends. That is, the outer portion 32 can form an internal space therein, and the multiple wedge-shaped portions 40 can be configured to cross the internal space. The multiple wedge-shaped portions 40 can be arranged on a plane so as to be separated from each other. The structure of the electromagnetic screen 30 is not limited to this, and the outer portion 32 can be removed and only the wedge-shaped portions 40 can be used. When the electromagnetic screen 30 is composed only of the wedge-shaped portions 40, a separate support rod (not shown) can be provided to support the multiple wedge-shaped portions 40. In this embodiment, the electromagnetic screen 30 composed of the outer portion 32 and the wedge-shaped portions 40 is described.

[0052] The electromagnet screen 30 can form an iron removal area A1 (refer to Figure 7 Although the iron removal area A1 is shown to be formed inside the outer contour of the electromagnetic screen 30, this is to distinguish it from the periphery of the guide portion 38 of the electromagnetic screen 30. The area formed around the periphery of the electromagnetic screen 30 can be defined as the iron removal area A1.

[0053] The iron removal area A1 may refer to an area where foreign matter adheres to the electromagnetic screen 30. The boundary of the iron removal area A1 may be formed along the periphery of the electromagnetic screen 30. The iron removal area A1 may refer to an area in the electromagnetic screen 30 where foreign matter is adsorbed. Figure 7 As shown, the boundary of the iron removal area A1 of the electromagnetic screen 30 may be formed along the outer portion 32 . However, the iron removal area A1 is not limited thereto, and may be an area formed by the wedge-shaped portion 40 disposed inside the outer portion 32 .

[0054] The plurality of electromagnetic screens 30 may be supported by the support rod 25 and spaced apart from each other. The spacing between the plurality of electromagnetic screens 30 may be the same, or may be set to different spacings according to the installation environment or the structure and working mode of the electromagnetic screen 30.

[0055] The peripheral portion 32 may include a peripheral body 34 and a guide portion 38 .

[0056] The outer shell 34 may be formed in a substantially ring shape. The outer shell 34 may be configured to be connected to the ends of the wedge-shaped portion 40. One end and the other end of the wedge-shaped portion 40 may be configured to be connected to the inner side surface of the outer shell 34, respectively.

[0057] The peripheral body 34 may include a wedge-shaped connecting portion 35 and a space forming portion 36 .

[0058] The wedge-shaped connecting portion 35 may be configured to connect the ends of the plurality of wedge-shaped portions 40. The wedge-shaped connecting portion 35 may be formed in plural numbers so as to correspond to the plurality of wedge-shaped portions 40.

[0059] The space forming portion 36 may include an opening 37 . The space forming portion 36 may be configured to correspond to the space 41 formed between the plurality of wedge-shaped portions 40 . That is, the space 41 formed between the wedge-shaped portions 40 may communicate with the outside of the outer body 34 through the opening 37 .

[0060] The space forming portion 36 may include: a first space forming portion 36a, which forms the upper boundary of the opening 37; and a second space forming portion 36b, which forms the lower boundary of the opening 37. In this embodiment, as the space forming portion 36, an example is shown in which the upper and lower sides of the opening 37 are defined by the first space forming portion 36a and the second space forming portion 36b. However, the present invention is not limited thereto. Figure 6b and Figure 6c As shown, any one of the first space forming portion 36a and the second space forming portion 36b may be omitted, thereby forming an opening 37 with an upper or lower opening. The wedge-shaped connecting portions 35 may be connected to each other via the other space forming portion that is not omitted.

[0061] The opening 37 of the space forming portion 36 can minimize the space where the magnetic field formed inside the metal foreign matter separator is disturbed. The magnetic field thus formed can maximize the magnetic force generated by the plurality of wedge-shaped portions 40 .

[0062] At least one space forming portion 36 may be formed between the plurality of wedge-shaped connection portions 35. The plurality of space forming portions 36 and the plurality of wedge-shaped connection portions 35 may be alternately arranged along the outer body 34.

[0063] The guide portion 38 can guide the raw material flowing into the screen housing 20 so that it flows more concentratedly toward the electromagnetic screen. This can improve the adsorption efficiency of the electromagnetic screen. The guide portion 38 can be configured to guide the raw material flowing within the screen housing 20 to the inner side of the electromagnetic screen 30. The guide portion 38 can be annular and can be formed along the outer periphery of the electromagnetic screen.

[0064] The guide portion 38 may be formed to extend from the outer body 34 . The guide portion 38 may extend from the outer body 34 so as to guide the raw material to the plurality of wedge-shaped portions 40 .

[0065] The guide portion 38 may be arranged along the inner surface 22 of the screen housing 20. Specifically, the guide portion 38 may be configured to extend radially from the outer body 34 toward the inner surface 22 of the screen housing 20 and be arranged along the inner surface 22 of the screen housing 20. The guide portion 38 may be formed integrally with the outer body 34.

[0066] The guide portion 38 may include an edge portion 38 a and an inclined surface 38 b .

[0067] The edge portion 38a can be arranged along the inner surface 22 of the screen housing 20. The edge portion 38a of the guide portion 38 is arranged along the inner surface 22 of the screen housing 20, thereby minimizing the space between the screen housing 20 and the electromagnetic screen 30. Thus, the flow of raw material between the screen housing 20 and the electromagnetic screen 30 can be minimized without being affected by the magnetic force of the electromagnetic screen 30.

[0068] The inclined surface 38b may be formed to be inclined downward from the edge portion 38a toward the wedge portion 40 or the outer body 34. The inclined surface 38b may be formed to be inclined at a certain angle with respect to the upper surface 34a of the electromagnet screen 30.

[0069] The inclined surface 38b may be configured to be inclined at a certain angle θ relative to the outer body 34 (refer to Figure 5 ). The guide portion 38 may form an obtuse angle with respect to the outer body 34. That is, a certain angle θ formed between the guide portion 38 and the outer body 34 may satisfy the following:

[0070] 90 degrees <θ < 180 degrees.

[0071] The guide portion 38 can be configured to be located above the uppermost end of the outer shell 34. Specifically, the guide portion 38 can be located upstream of the wedge-shaped portion 40 and the outer shell 34 relative to the flow direction of the raw material. Thus, when the raw material moves along the interior of the screen housing 20, the guide portion 38 can guide the raw material flowing toward the outer contour of the electromagnetic screen 30 to the wedge-shaped portion 40.

[0072] The guide portion 38 may include a moving guide 38c.

[0073] The movable guide 38c can be configured to guide the electromagnet screen 30 to the inner surface 22 of the screen housing 20. That is, the movable guide 38c is configured to make the electromagnet screen 30 correspond to the inner surface 22 of the screen housing 20, and when the electromagnet screen 30 moves inside the screen housing 20, the movement of the electromagnet screen 30 can be guided.

[0074] The electromagnetic screen 30 with the adsorbed foreign matter can then be vibrated by a vibrating device. Specifically, the vibrating device is used to vibrate the electromagnetic screen 30 to separate the foreign matter adsorbed on the electromagnetic screen 30. The movable guide 38c can be formed to protrude opposite the inner surface 22 of the screen housing 20 in a manner that guides the vertical movement of the electromagnetic screen 30.

[0075] The plurality of electromagnetic screens 30 may include: a first electromagnetic screen 30a; and a second electromagnetic screen 30b located below the first electromagnetic screen 30a.

[0076] The guide portion 38 of the first electromagnetic screen 30a and the guide portion 38 of the second electromagnetic screen 30b can form a flow space 39 toward the wedge-shaped portion 40. In other words, the raw material guided by the guide portion 38 of the second electromagnetic screen 30b or flowing between the guide portion 38 of the first electromagnetic screen 30a and the guide portion 38 of the second electromagnetic screen 30b can flow toward the wedge-shaped portion 40 through the flow space 39. The flow space 39 formed between the plurality of electromagnetic screens can maximize the efficiency of the electromagnetic screens in adsorbing the raw material.

[0077] While specific embodiments have been shown and described above, the present invention is not limited to the above-described embodiments, and those skilled in the art can make various modifications and implement the present invention without departing from the spirit of the technical concept of the invention described in the technical solution.

Claims

1. A metal foreign matter separation device for separating foreign matter from raw materials, wherein: The metal foreign body separation device comprises: a housing configured to allow the passage of a raw material; and The electromagnetic screen is arranged inside the housing and is configured to adhere to the foreign matter through a magnetic field. The electromagnet screen comprises: an outer portion corresponding to an inner surface of the housing; and a plurality of wedge-shaped portions configured to cross the inner space formed by the outer peripheral portion, The peripheral portion includes: a peripheral body connected to the plurality of wedge-shaped portions; and A guide portion extends from the peripheral body and guides the raw material to the plurality of wedge-shaped portions.

2. The metal foreign matter separation device according to claim 1, wherein: The guide portion is arranged along the inner surface of the housing.

3. The metal foreign matter separation device according to claim 1, wherein: The guide portion is configured to expand from the outer body toward the inner surface of the housing.

4. The metal foreign matter separation device according to claim 3, wherein: The guide portion is configured to be inclined at a certain angle (θ) relative to the outer body, and the certain angle satisfies the following: 90 degrees <θ < 180 degrees.

5. The metal foreign matter separation device according to claim 1, wherein: The electromagnet screen comprises: a first electromagnetic screen; and The second electromagnetic screen is arranged below the first electromagnetic screen. A flow space configured to face the wedge-shaped portion is formed between the guide portion of the first electromagnetic screen and the guide portion of the second electromagnetic screen.

6. The metal foreign matter separation device according to claim 1, wherein: The guide portion comprises: an edge portion disposed along an inner surface of the housing; and An inclined surface is formed to be inclined downward from the edge portion toward the wedge-shaped portion.

7. The metal foreign matter separation device according to claim 6, wherein: The guide portion further includes a movable guide member that is protruded and formed opposite to the inner surface of the housing in a manner to guide the vertical vibration of the electromagnetic screen.

8. The metal foreign matter separation device according to claim 1, wherein: The peripheral body comprises: a plurality of wedge-shaped connecting portions connecting the plurality of wedge-shaped portions; and a plurality of space forming portions corresponding to the separated spaces formed between the plurality of wedge-shaped portions and connected to the wedge-shaped connecting portion; The space forming portion includes an opening communicating with the partitioned space.

9. The metal foreign matter separation device according to claim 8, wherein: The plurality of wedge-shaped connection portions and the plurality of space forming portions are alternately arranged.

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