Foreign substance removal device

Abstract

A foreign substance removal device is disclosed. The foreign substance removal device can obtain a high-quality raw material from which foreign substances have been removed. The foreign substance removal device comprises a front-end supply unit, a cyclone unit, and a rear-end discharge unit. The raw material and foreign substances in a firing chamber are introduced into the front-end supply unit. The cyclone unit is connected to the front-end supply unit, and separates the raw material from the foreign substances. The rear-end discharge unit is connected to the cyclone unit, and accumulates the raw material.

Description

Foreign substance removal device

[0001] The present invention relates to a foreign substance removal device using a cyclone method.

[0002] The cathode and anode materials, which are raw materials for secondary batteries, are electrode materials in powder form. Specifically, the electrode powder is in the form of a powder in which the electrode active material, conductive material, and binder are evenly mixed.

[0003] Raw materials in powder form are mixed with foreign substances during the calcination process. High-quality raw materials from which the foreign substances have been removed need to be used in the manufacture of secondary batteries.

[0004] Conventionally, a mesh and a vibration amplification unit were applied to remove foreign substances mixed with raw materials. The mesh was used to separate foreign substances and capture raw materials, and the vibration amplification unit was used to transmit vibrations generated by a vibration generating unit to the mesh.

[0005] However, mesh screens cause clogging of the holes depending on the size of the raw materials, and using a mesh screen with very small holes leads to poor flowability and reduced production performance.

[0006] In addition, there is a problem in that the separation and collection performance is reduced because the raw materials are very small and clumping occurs, and the clumping does not improve even if vibration is increased.

[0007] The objective of the present invention is to provide a foreign substance removal device capable of removing foreign substances without causing clogging of the mesh and clumping of raw materials.

[0008] The aforementioned objective of the present invention is achieved by the specific details described below.

[0009] A foreign substance removal device according to an embodiment of the present invention includes a front supply unit, a cyclone unit, and a rear discharge unit. The front supply unit receives raw materials and foreign substances located in a firing chamber. The cyclone unit is connected to the front supply unit and separates the raw materials and the foreign substances. The rear discharge unit is connected to the cyclone unit and accumulates the raw materials.

[0010] Specifically, the shear supply unit includes a shear filter unit and a pump. The shear filter unit is positioned within the internal space of a filter chamber, and the pump is connected to the filter chamber. When the pump operates, raw materials and foreign substances in the calcination chamber move into the internal space of the filter chamber, and the raw materials and foreign substances accumulate in the shear filter unit and move to the bottom of the filter chamber.

[0011] Specifically, the shear supply unit includes a storage room positioned below the filter room and a feeder unit connected to the storage room. Raw materials and foreign substances pass through the storage room and the feeder unit in sequence to move to the cyclone unit.

[0012] Specifically, the shear supply unit includes a cyclone-side line and an air inlet provided on the cyclone-side line. One end of the cyclone-side line is connected to a feeder unit, and the other end of the cyclone-side line is connected to a cyclone unit. The air inlet is provided between the one end and the other end of the cyclone-side line.

[0013] Specifically, when the rear pump equipped in the rear discharge section operates, the air introduced into the air inlet section by the suction force of the rear pump creates a flow and moves into the interior of the cyclone-side line, thereby moving raw materials and foreign substances that have reached the outlet of the feeder section into the interior of the cyclone section.

[0014] Specifically, the shear supply unit is equipped with a shear pump positioned in the air inlet. External air is introduced into the air inlet by the shear pump, and the air introduced into the air inlet creates a flow and moves into the interior of the cyclone-side line, thereby moving raw materials and foreign substances that have reached the outlet of the feeder unit into the interior of the cyclone unit.

[0015] Specifically, a filter that screens out foreign substances is placed in the air inlet.

[0016] Specifically, the feeder section is one of a piston feeder, a screw feeder, or a vibrating feeder.

[0017] Specifically, the cyclone section includes an upper body and a lower body. Raw materials and foreign substances enter the internal space of the upper body through an inlet provided in the upper body. Then, the raw materials move to a rear discharge section through an outlet provided in the upper body, and the foreign substances are collected in the lower body.

[0018] Specifically, the upper body and the lower body are combined and separated from each other.

[0019] Specifically, the cyclone section includes a foreign matter removal pump and a pipe connected to the foreign matter removal pump. One end of the pipe is connected to a pipe opening in the lower body, and the other end of the pipe is connected to the foreign matter removal pump. When the foreign matter removal pump operates, foreign matter accumulated in the internal space of the lower body moves to the outside through the pipe.

[0020] Specifically, a plurality of cyclone sections are provided, and the plurality of cyclone sections are connected in parallel.

[0021] Specifically, multiple cyclone sections are provided, and the multiple cyclone sections are connected in series. The adjacent cyclone sections are connected by a connecting line.

[0022] Specifically, the rear discharge section includes a rear filter section disposed in the internal space of the rear case and a rear pump connected to the rear case. When the rear pump operates, the raw material in the cyclone section moves into the internal space of the rear case, the raw material accumulates in the rear filter section, and moves to the bottom surface of the rear case.

[0023] Specifically, the rear discharge section includes a rear case and a rear pump connected to the rear case. The rear case includes an inlet for introducing raw materials and air, and an outlet for discharging air. When the rear pump operates, the raw materials in the cyclone section move into the internal space through the inlet of the rear case, and the raw materials move to the bottom surface of the rear case under the influence of gravity.

[0024] The foreign substance removal device according to an embodiment of the present invention does not use a mesh and a vibrating part in the prior art, so manufacturing costs can be reduced.

[0025] In addition, the foreign substance removal device according to an embodiment of the present invention can remove foreign substances (e.g., 30 μm or larger) by providing a cyclone section, and can improve productivity by improving the decrease in flowability caused by the clumping of particles of raw materials.

[0026] In addition, the foreign substance removal device according to an embodiment of the present invention can change the flow direction according to the process by applying various cyclone flows, and can increase the processing flow rate and improve the foreign substance removal effect by having a plurality of cyclone sections.

[0027] In addition, the foreign substance removal device according to an embodiment of the present invention is equipped with a foreign substance removal pump, thereby automating a process that requires manpower.

[0028] More detailed effects of the foreign substance removal device according to the embodiment of the present invention are described in the following embodiments for the implementation of the invention.

[0029] FIG. 1 is a block diagram of the foreign substance removal device of the present invention.

[0030] FIG. 2 is a schematic diagram of the foreign substance removal device of the present invention.

[0031] Figure 3 shows the filter chamber and the pre-filter section.

[0032] Figure 4 shows the feeder section and the air inlet section.

[0033] Figure 5 is a perspective view showing the cyclone section.

[0034] Figure 6 shows the interior of the cyclone section and the movement of air.

[0035] Figure 7 shows the capture efficiency curve of the cyclone section.

[0036] Figure 8 shows the change in collection efficiency according to changes in flow rate and pressure of the cyclone section.

[0037] FIG. 9 shows an embodiment in which a foreign matter removal pump is placed in the lower body of the cyclone section.

[0038] Figure 10 shows a parallel multi-stage cyclone section.

[0039] Figure 11 shows a series multi-stage cyclone section.

[0040] Figure 12 briefly shows the cyclone section and the rear discharge section.

[0041] Figure 13 briefly shows a diffusion chamber.

[0042] Embodiments of the present invention will be described in more detail below with reference to the attached drawings. Regarding components of the present invention that can be clearly understood and easily reproduced by a person skilled in the art according to the prior art, specific descriptions thereof are omitted in order not to obscure the essence of the present invention.

[0043] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings.

[0044] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0045] Additionally, terms including ordinal numbers, such as first, second, etc., used herein may be used to describe various components, but said components should not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0046] Hereinafter, a contaminant removal device according to an embodiment of the present invention will be described.

[0047] The foreign substance removal device of the present invention is a device that separates raw materials and foreign substances by being equipped with a cyclone device without using the filtering and vibrating parts of the prior art. The raw material may be a positive or negative electrode material in powder form that is a material for a secondary battery, and the foreign substance represents dust, etc.

[0048] In other words, the foreign substance removal device of the present invention is a device for obtaining high-quality raw materials from which foreign substances have been removed.

[0049] Referring to FIGS. 1 to 3, the foreign substance removal device of the present invention includes a front supply unit (20), a cyclone unit (30), and a rear discharge unit (40).

[0050] The shear supply unit (20) moves the raw material in the firing chamber (10) to the cyclone unit (30).

[0051] The shear supply unit (20) is positioned between the firing chamber (10) and the cyclone unit (30).

[0052] One side of the shear supply unit (20) is connected to the firing chamber (10), and the other side is connected to the cyclone unit (30).

[0053] The firing chamber (10) is a chamber that accommodates raw materials (anode or cathode material) in powder form obtained through a firing process.

[0054] The firing chamber (10) is provided with a space for receiving raw materials in powder form and is not limited to a specific shape.

[0055] The firing chamber (10) contains not only raw materials but also foreign substances. The foreign substances need to be removed by the foreign substance removal device of the present invention.

[0056] The shear supply unit (20) includes a filter room (21), a shear filter unit (22), a pump (23), a storage room (24), a feeder unit (25), and an air inlet unit (26).

[0057] The shear filter section (22) separates raw materials from air. The shear filter section (22) represents a known bag filter. A bag filter represents a filter that allows air to pass through and filters out and collects particles (raw materials).

[0058] The shear filter section (22) is placed in the internal space (21s) of the filter room (21).

[0059] The shear filter section (22) includes a filter (221) that separates air and raw materials and a filter support section (222) that supports the filter (221).

[0060] The filter (221) is formed of a material that allows air to pass through but does not allow raw materials and foreign substances to pass through. A conventional known filter may be used for the filter (221).

[0061] The filter support (222) is connected to the filter (221).

[0062] The filter support (222) is formed of a material that does not allow air, raw materials, or foreign substances to pass through.

[0063] One or more filters (221) are placed in the center of the filter support (222).

[0064] The edge of the filter support (222) is joined to the inner surface surrounding the internal space (21s) of the filter chamber (21). The filter support (222) can be detachably joined to the inner surface of the filter chamber (21).

[0065] According to an embodiment, the shear filter unit (22) can be shaken by a user or connected to a motor device (not shown). Accordingly, raw materials and foreign substances attached to the shear filter unit (22) can fall downward.

[0066] The filter room (21) can be placed on one side (e.g., the top) of the storage room (24).

[0067] The filter chamber (21) includes an internal space (21s) and can be formed in any shape that forms the internal space (21s). The shape of the filter chamber (21) is not limited to a specific shape.

[0068] A shear filter section (22) is placed in the internal space (21s) of the filter room (21).

[0069] The internal space (21s) of the filter room (21) can be divided into a first space (21s1) and a second space (21s2) by the pre-filter section (22). To elaborate, the pre-filter section (22) divides the internal space (21s) of the filter room (21) into a first space (21s1) and a second space (21s2).

[0070] The first space (21s1) is placed on one side (e.g., the top), and the second space (21s2) is placed on the other side (e.g., the bottom).

[0071] A portion of the filter (221) of the shear filter section (22) may be placed in the second space (21s2) depending on the type of filter. For example, this indicates a case where the filter (221) is formed in a rod shape.

[0072] The filter chamber (21) is equipped with a firing connection hole (21h1) and a pump connection hole (21h2).

[0073] The firing connection hole (21h1) and the pump connection hole (21h2) are holes that penetrate the filter room (21) and are in communication with the internal space (21s) of the filter room (21).

[0074] In an embodiment where the shear filter section (22) is arranged horizontally and the first space (21s1) and the second space (21s2) are divided vertically (an embodiment where the first space (21s1) is placed on top and the second space (21s2) is placed on the bottom), the firing connection hole (21h1) may be located on one side of the filter chamber (21) surrounding the second space (21s2), and the pump connection hole (21h2) may be located on the other side of the filter chamber (21) surrounding the first space (21s1).

[0075] The shear supply unit (20) is equipped with a firing line (10L) and a pump line (23L).

[0076] The firing line (10L) and the pump line (23L) are a type of piping and have a preset length.

[0077] The firing line (10L) is positioned between the firing room (10) and the filter room (21) and is connected to the firing room (10) and the filter room (21).

[0078] One end of the firing line (10L) is connected to the firing chamber (10), and the other end of the firing line (10L) is connected to the firing connection hole (21h1) of the filter chamber (21).

[0079] The pump (first pump) (23) is connected to the filter room (21) by the pump line (23L).

[0080] The pump line (23L) is positioned between the filter room (21) and the first pump (23) and is connected to the filter room (21) and the first pump (23).

[0081] One end of the pump line (23L) is connected to the pump connection hole (21h2) of the filter room (21), and the other end of the pump line (23L) is connected to the first pump (23).

[0082] The first pump (23) is a known pump device and may be a vacuum pump or a negative pressure pump.

[0083] The first pump (23) is a pump that sucks in air from the filter room (21) and the firing room (10) and discharges it to the outside.

[0084] When the first pump (23) is operated, the raw materials and foreign substances in the firing chamber (10) move to the internal space (21s) of the filter chamber (21), the raw materials and foreign substances accumulate in the shear filter section (22), and move to the bottom section (21a) of the filter chamber (21).

[0085] Specifically, when the first pump (23) is operated, the air in the calcination chamber (10) moves through the calcination line (10L) to the internal space (21s) of the filter chamber (21), and is then discharged to the outside through the pump line (23L).

[0086] When the air from the firing chamber (10) moves into the internal space (21s) of the filter chamber (21), the raw materials and foreign substances in the firing chamber (10) also move together.

[0087] Raw materials and foreign substances are caught in the shear filter section (22) (specifically the filter (221)) placed in the filter room (21) and accumulated in the shear filter section (22), and air passes through the filter (221) and is discharged to the outside through the pump line (23L).

[0088] The raw materials and foreign substances accumulated in the shear filter section (22) move downward (fall) due to the influence of gravity.

[0089] In the filter chamber (21), the shear filter section (22) is positioned between the firing connection hole (21h1) and the pump connection hole (21h2). To elaborate, the shear filter section (22) is positioned across the firing connection hole (21h1) and the pump connection hole (21h2), and divides the internal space (21s) of the filter chamber (21) into two areas (a first space (21s1) and a second space (21s2)).

[0090] Specifically, the edge of the filter support (222) is positioned between the firing connection hole (21h1) and the pump connection hole (21h2).

[0091] Air entering the interior of the filter chamber (21) from the firing connection hole (21h1) enters the second space (21s2) of the filter chamber (21), passes through the filter (221) of the pre-filter section (22), moves to the first space (21s1) of the filter chamber (21), and then enters the pump connection hole (21h2).

[0092] When the first pump (23) is operated, the air, raw materials, and foreign substances inside the firing chamber (10) are moved to the filter chamber (21) through the firing line (10L) by the suction force of the first pump (23).

[0093] Among the air, raw materials, and foreign substances that have moved to the second space (21s2) of the filter room (21), some of the air passes through the filter of the pre-filter section (22) by the suction force of the first pump (23), then moves to the first space (21s1) of the filter room (21), and then moves to the pump line (23L) through the pump connection hole (21h2) and is discharged to the outside.

[0094] At this time, raw materials and foreign substances cannot pass through the filter (221) of the shear filter section (22) and accumulate on the filter (221). The raw materials and foreign substances accumulated on the filter (221) move (fall) to the lower part of the second space (21s2) of the filter chamber (21) due to the action of gravity.

[0095] A storage room (24) is placed below the filter room (21).

[0096] According to an embodiment of the present invention (first embodiment), the filter room (21) and the storage room (24) can be connected by a filter-side line (21L).

[0097] The filter side line (21L) is a type of pipe and has a preset length.

[0098] The filter side line (21L) is positioned between the filter room (21) and the storage room (24) and is connected to the filter room (21) and the storage room (24).

[0099] In the first embodiment, holes (21h3, 24h1) are formed in a part of the bottom portion (21a) of the filter room (21) and a part of the ceiling portion of the storage room (24), respectively.

[0100] The hole (21h3) formed in the bottom part (21a) of the filter room (21) can be named the ‘first connecting hole (21h3)’, and the hole (24h1) formed in the ceiling part of the storage room (24) can be named the ‘second connecting hole (24h1)’.

[0101] One end of the filter-side line (21L) is connected to the first connecting hole (21h3) of the filter room (21), and the other end of the filter-side line (21L) is connected to the second connecting hole (24h1) of the storage room (24).

[0102] Raw materials and foreign substances that cannot pass through the shear filter section (22) in the internal space (21s) (second space (21s2)) of the filter room (21) and move downward by gravity (fall) pass through the first connecting hole (21h3) of the filter room (21), the filter side line (21L), and the second connecting hole (24h1) of the storage room (24) in sequence, and move into the internal space (24s) of the storage room (24).

[0103] Meanwhile, according to another embodiment of the present invention (second embodiment), the filter room (21) and the storage room (24) can be connected without other components.

[0104] That is, a part of the bottom portion (21a) of the filter room (21) and a part of the ceiling portion of the storage room (24) are connected without a filter-side line (21L).

[0105] A hole (which may be named a ‘connecting hole’) is formed where a part of the bottom portion (21a) of the filter room (21) and a part of the ceiling portion of the storage room (24) are connected.

[0106] The above connecting hole represents a hole formed in the bottom portion (21a) of the filter room (21) and also a hole formed in the ceiling portion of the storage room (24).

[0107] Raw materials and foreign substances that cannot pass through the shear filter section (22) in the internal space (21s) (second space (21s2)) of the filter room (21) and move downward by gravity (fall) are moved to the internal space (21s) of the storage room (24) through the connecting hole.

[0108] In the first and second embodiments described above, the bottom portion (21a) of the filter chamber (21) may be formed at an angle. Accordingly, raw materials and foreign substances that fall onto the bottom portion (21a) of the filter chamber (21) can easily move downward along the angled surface and enter the connecting hole (21h3).

[0109] In addition, in the first and second embodiments described above, raw materials and foreign substances that have fallen to the bottom portion (21a) of the filter room (21) can move to the internal space (24s) of the storage room (24) by passing through the connection hole (21h3) and / or the filter side line (21L) due to the action of gravity.

[0110] Raw materials and foreign substances can move downward by gravity in the internal space (21s) of the filter room (21), and can also move from the filter room (21) to the storage room (24) by gravity.

[0111] Since raw materials and foreign substances move by gravity without a separate driving device (power source), costs associated with the movement of raw materials and foreign substances can be reduced, and the structure of the foreign substance removal device can be simplified.

[0112] Meanwhile, according to an embodiment of the present invention, the foreign matter removal device of the present invention may be equipped with a pump (second pump) (241) connected to a storage room (24).

[0113] The second pump (241) may be a vacuum pump or a negative pressure pump, just like the first pump (23).

[0114] The second pump (241) is a pump that sucks in air in the internal space (24s) of the storage room (24) and discharges it to the outside.

[0115] The second pump (241) sucks in air and, together with the dust (raw materials and foreign substances, etc.) floating in the internal space (24s) of the storage room (24), discharges it to the outside of the storage room (24).

[0116] The second pump (241) can be operated so as not to suck up raw materials and foreign substances accumulated on the bottom (24a) of the storage room (24).

[0117] A separate pipe (first pipe) (not shown) may be provided between the storage room (24) and the second pump. Dust (raw materials and foreign substances, etc.) floating in the internal space (24s) of the storage room (24) can be moved through the first pipe.

[0118] The storage room (24) stores raw materials and foreign substances that have moved (fallen) from the filter room (21).

[0119] The storage room (24) is a room where raw materials and foreign substances accumulate.

[0120] The storage room (24) includes an internal space (24s) and can be formed in any shape that forms the internal space (24s). The shape of the storage room (24) is not limited to a specific shape.

[0121] Raw materials and foreign substances accumulate in the internal space (24s) of the storage room (24).

[0122] Raw materials and foreign substances that have moved into the internal space (24s) of the storage room (24) can move (fall) toward the bottom part (24a) of the storage room (24) due to the action of gravity.

[0123] A hole (24h2) (which may be named 'bottom hole (24h2)') is formed in a part of the bottom portion (24a) of the storage room (24).

[0124] The raw materials and foreign substances moved to the bottom part (24a) of the storage room (24) are moved to the internal space (25s) of the feeder part (25) through the bottom hole (24h2).

[0125] According to an embodiment of the present invention, the bottom portion (24a) of the storage room (24) may be formed at an angle. Accordingly, raw materials and foreign substances that fall onto the bottom portion (24a) of the storage room (24) can easily move downward along the angled surface and enter the bottom hole (24h2).

[0126] Meanwhile, according to another embodiment of the present invention, the foreign matter removal device of the present invention may not have the aforementioned storage chamber (24). In this embodiment, a connecting hole or a first connecting hole (21h3) formed in the bottom portion (21a) of the filter chamber (21) may be connected to the inlet (25h1) of the feeder portion (25) directly or through the filter-side line (21L).

[0127] Below, the foreign substance removal device of the present invention is described as an embodiment equipped with a storage chamber (24).

[0128] The shear supply unit (20) is equipped with a feeder-side line (24L).

[0129] The feeder side line (24L) is a type of pipe and has a preset length.

[0130] The feeder side line (24L) is positioned between the storage room (24) and the feeder section (25) and is connected to the storage room (24) and the feeder section (25).

[0131] One end of the feeder-side line (24L) is connected to the storage room (24), and the other end of the feeder-side line (24L) is connected to the feeder section (25).

[0132] Specifically, one end of the feeder-side line (24L) is connected to the bottom hole (24h2) of the storage room (24), and the other end of the feeder-side line (24L) is connected to the inlet (25h1) of the feeder section (25).

[0133] The raw materials and foreign substances accumulated in the storage room (24) are moved to the feeder section (25) through the feeder side line (24L).

[0134] Raw materials and foreign substances that have fallen to the bottom (24a) of the storage room (24) can move to the internal space (25s) of the feeder section (25) by passing through the bottom hole (24h2) of the storage room (24), the feeder side line (24L), and the inlet (25h1) of the feeder section (25) by the action of gravity.

[0135] Raw materials and foreign substances can move downward by gravity in the internal space (24s) of the storage room (24), and can also move from the storage room (24) to the feeder section (25) by gravity.

[0136] Since raw materials and foreign substances move by gravity without a separate driving device (power source), costs associated with the movement of raw materials and foreign substances can be reduced, and the structure of the foreign substance removal device can be simplified.

[0137] The feeder section (25) may be placed on the other side (e.g., the bottom) of the storage room (24). The feeder section (25) may be connected to the storage room (24) by a feeder-side line (24L).

[0138] The feeder section (25) sends raw materials and foreign substances supplied from the storage room (24) to the cyclone section (30).

[0139] The feeder section (25) can supply raw materials to the cyclone section (30) in a constant amount.

[0140] The feeder section (25) may be, for example, any one of a piston feeder, a screw feeder, or a vibrating feeder. Since piston feeders, screw feeders, and vibrating feeders are well-known devices, they will be described briefly and a detailed description will be omitted.

[0141] A piston feeder may be equipped with a piston (251), a drive motor (not shown) that moves the piston (251), and a ball screw (not shown) disposed between the piston (251) and the drive motor. When the drive motor operates, the piston connected to the ball screw can move back and forth in a straight line.

[0142] A linear motion guide may be further provided for the smooth operation of the ball screw.

[0143] As the piston (251) moves, it moves raw materials and foreign substances that have entered the internal space (25s) through the inlet (25h1) of the feeder section (25) to the outlet (25h2) of the feeder section (25).

[0144] A screw feeder (not shown) is also called a screw conveyor.

[0145] Generally, a screw feeder is a device that continuously transports raw materials to a preset location by rotating a spiral blade shaft.

[0146] To elaborate, a screw feeder is a device in which spiral blades are attached to a rotating shaft of a constant length in one direction, and the spiral blades rotate when the shaft is rotated by a drive motor. As the blades rotate, raw materials placed between the blades are pushed and moved by them.

[0147] As the spiral blades rotate, they move raw materials and foreign substances that have entered the internal space (25s) through the inlet (25h1) of the feeder section (25) to the outlet (25h2) of the feeder section (25). An equal (constant) amount of raw materials can be placed between the spiral blades.

[0148] Screw feeders have advantages such as a simple structure, uniform feeding, continuous performance, and adjustable feed volume.

[0149] A vibrating feeder is a device that moves raw materials to a preset location using vibrations generated by a drive motor.

[0150] When the vibrating plate vibrates, raw materials and foreign substances that have entered the internal space (25s) through the inlet (25h1) of the feeder section (25) move to the outlet (25h2) of the feeder section (25). By vibrating the vibrating plate at a constant rate, an equal (constant) amount of raw materials can be moved.

[0151] Vibrating feeders have advantages such as a simple structure, stable vibration, uniform feeding, excellent continuous performance, and adjustable force.

[0152] The feeder section (25) includes an internal space (25s) and can be formed in any shape that forms the internal space (25s). The shape of the feeder section (25) is not limited to a specific shape.

[0153] In the case where the feeder section (25) is a piston feeder, a piston (251) is placed in the internal space (25s) of the feeder section (25).

[0154] In the case where the feeder section (25) is a screw feeder, a rotation axis and a spiral wing are arranged in the internal space (25s) of the feeder section (25).

[0155] And, if the feeder section (25) is a vibrating feeder, a device that generates vibration and / or a component that supports moving raw materials (e.g., a vibrating plate) may be placed in the internal space (25s) of the feeder section (25).

[0156] The feeder section (25) includes an inlet (25h1) and an outlet (25h2).

[0157] The inlet (25h1) and outlet (25h2) are passages through which raw materials move.

[0158] Raw materials and foreign substances stored in the storage room (24) enter the internal space (25s) of the feeder unit (25) through the inlet (25h1) of the feeder unit (25), and raw materials and foreign substances that have traveled a preset distance in the internal space (25s) of the feeder unit (25) exit to the outside of the feeder unit (25) through the outlet (25h2) of the feeder unit (25).

[0159] The inlet (25h1) and the outlet (25h2) are separated by a preset distance. The preset distance can be determined by the location of the storage room (24) and the location of the cyclone section (30).

[0160] The shear supply unit (20) is equipped with a cyclone-side line (25L).

[0161] The cyclone-side line (25L) is a type of pipe and has a preset length.

[0162] The cyclone side line (25L) is positioned between the feeder section (25) and the cyclone section (30) and is connected to the feeder section (25) and the cyclone section (30).

[0163] One end of the cyclone-side line (25L) is connected to the feeder section (25), and the other end of the cyclone-side line (25L) is connected to the cyclone section (30).

[0164] Specifically, one end of the cyclone-side line (25L) is connected to the outlet (25h2) of the feeder section (25), and the other end of the cyclone-side line (25L) is connected to the inlet (31h1) of the cyclone section (30).

[0165] According to an embodiment of the present invention, raw materials and foreign substances moved to the outlet (25h2) of the feeder section (25) can move into the interior of the cyclone section (30) by passing through the cyclone-side line (25L) and the inlet (31h1) of the cyclone section (30) by the action of gravity.

[0166] Raw materials and foreign substances can move (fall) by gravity from the outlet (25h2) of the feeder section (25) to the inlet (31h1) of the cyclone section (30).

[0167] Since raw materials and foreign substances move by gravity without a separate driving device (power source), costs associated with the movement of raw materials and foreign substances can be reduced, and the structure of the foreign substance removal device can be simplified.

[0168] Meanwhile, according to another embodiment of the present invention, raw materials and foreign substances moved to the outlet (25h2) of the feeder section (25) can pass through the cyclone side line (25L) and the inlet (31h1) of the cyclone section (30) by the suction force of the rear pump (43) provided in the rear discharge section (40) described later, and move into the interior of the cyclone section (30).

[0169] The shear supply unit (20) may include an air inlet unit (26) (see FIG. 4).

[0170] The air inlet (26) is a passage through which external air is introduced. External air can be introduced into the air inlet (26) by the suction force of the rear pump (43) described later.

[0171] The air inlet (26) is provided in the cyclone-side line (25L).

[0172] The air inlet (26) is provided between one end and the other end of the cyclone-side line (25L).

[0173] The air inlet (26) is connected to the internal space of the cyclone-side line (25L).

[0174] External air introduced through the air inlet (26) can be introduced into the interior of the cyclone-side line (25L).

[0175] The air introduced into the air inlet (26) by the suction force of the rear pump (43) creates a flow and moves into the interior of the cyclone-side line (25L), moving the raw materials and foreign substances that have reached the outlet (25h2) of the feeder section (25) into the interior of the cyclone section (30).

[0176] Specifically, external air passes through the air inlet (26) and enters the interior of the cyclone-side line (25L) and moves into the interior of the cyclone section (30). Due to the movement of the air, raw materials and foreign substances that reach the outlet (25h2) of the feeder section (25) move into the interior space (31s) of the cyclone section (30) and are separated while moving within the interior space (21s) of the cyclone section (30).

[0177] A filter (261) may be placed in the air inlet (26).

[0178] The filter (261) is a known filter and filters (removes) foreign substances contained in the air. Specifically, the filter (261) prevents foreign substances contained in the air flowing in from the outside from entering the interior of the cyclone-side line (25L).

[0179] By means of the filter (261), the air introduced into the air inlet (26) is mixed with the raw material and foreign matter that reaches the outlet (25h2) of the feeder (25) in a state where foreign matter has been removed.

[0180] Alternatively, according to another embodiment of the present invention, the shear supply unit (20) is equipped with a shear pump (262), and the shear pump (262) may be placed in the air inlet unit (26).

[0181] The shear pump (262) is positioned in front of the filter (261).

[0182] The shear pump (262) injects external air into the air inlet (26). That is, the shear pump (262) may be a known positive pressure pump.

[0183] External air can be introduced into the air inlet (26) by the shear pump (262) and into the interior of the cyclone side line (25L).

[0184] The incoming air moves and creates a flow, and as it moves into the interior of the cyclone-side line (25L), it moves the raw materials and foreign substances that have reached the outlet (25h2) of the feeder section (25) into the internal space (31s) of the cyclone section (30). The raw materials and foreign substances are separated as they move within the internal space (31s) of the cyclone section (30).

[0185] Alternatively, according to another embodiment of the present invention, the foreign matter removal device of the present invention may be equipped with both the aforementioned front pump (262) and the rear pump (43) provided in the rear discharge section (40). Flow (cyclone flow) in the internal space (31s) of the cyclone section (30) may be generated by the front pump (262) and the rear pump (43).

[0186] The air (flow) supplied by the shear supply unit (20) to the cyclone unit (30) contains raw materials and foreign substances. The cyclone unit (30) can separate the raw materials and foreign substances.

[0187] Figures 5 to 11 show the cyclone section (30).

[0188] Referring to FIGS. 5 to 11, the cyclone section (30) discharges only the raw materials contained in the air (flow) introduced into the interior through the shear supply section (20), and collects foreign substances.

[0189] The foreign substance removal device of the present invention is equipped with a cyclone section (30) to improve the clogging phenomenon of conventional filter screens and the flowability of raw materials, and to improve performance by removing clumping between raw materials.

[0190] The cyclone section (30) utilizes the characteristics of a general cyclone (particle separation technology) that separates into two areas according to size / weight, collecting large foreign substances in the lower body (32) and expelling small raw materials to the outside of the cyclone section (30) along with air.

[0191] Specifically, due to the difference in centrifugal force generated inside the cyclone section (30) depending on the size and weight (or density) of the raw material and foreign material, large particles (foreign material) are introduced into the lower body (32) installed at the bottom, and small particles (raw material) are discharged together with air.

[0192] The cyclone section (30) separates only small particles (raw materials) contained in the air (flow), and the high-quality raw materials from which foreign substances have been removed are used in other manufacturing processes of secondary batteries.

[0193] The cyclone section (30) of the present invention can generate various cyclone flows (tangential type, axial type, vane tube type) capable of removing foreign substances. The cyclone flow represents the air flow in the internal space (31s) of the cyclone section (30).

[0194] The performance and design variables of the cyclone section (30) may be changed according to the size of the raw materials and foreign substances contained in the air (flow) and are not limited to specific performance and design variables. The performance indicates the cutting diameter, pressure drop, discharge flow rate, etc., and the design variables indicate the inlet size, cyclone body diameter, cone diameter, vortex finder height, etc.

[0195] Referring to FIG. 7, it can be seen that the larger the size of the particles (foreign substances), the greater the collection efficiency of the cyclone section (30). Referring to FIG. 8, it can be seen that the collection efficiency of the cyclone section (30) can be adjusted as the flow rate and pressure are changed.

[0196] The cyclone section (30) includes an upper body (31) and a lower body (32).

[0197] The upper body (31) and the lower body (32) are stacked and connected to each other.

[0198] Specifically, the upper body (31) is positioned on top and the lower body (32) is positioned below. The lower part of the upper body (31) and the upper part of the lower body (32) are connected to each other.

[0199] Each of the upper body (31) and the lower body (32) includes an internal space (31s, 32s).

[0200] The internal space (31s) of the upper body (31) and the internal space (32s) of the lower body (32) are connected to each other.

[0201] The external shape of the upper body (31) is not limited to a specific shape and can be formed in various shapes. The external shape of the upper body (31) refers to the shape that forms the exterior of the upper body (31).

[0202] However, the internal shape of the upper body (31) is formed in a circular shape. The internal shape of the upper body (31) refers to the shape of the internal space (31s) of the upper body (31).

[0203] The internal space (31s) of the upper body (31) can be divided into a first upper space (31s1) and a second upper space (31s2).

[0204] The first upper space (31s1) and the second upper space (31s2) are connected to each other, the first upper space (31s1) is positioned at the top, and the second upper space (31s2) is positioned at the bottom.

[0205] The upper portion of the first upper space (31s1) is covered by the upper plate (31a) of the upper body (31), and the lower portion of the first upper space (31s1) comes into contact with the upper portion of the second upper space (31s2). And, the lower portion of the second upper space (31s2) is connected to the lower body (32).

[0206] The inner surface (31b) of the upper body (31) surrounding the first upper space (31s1) is formed in a circular shape when viewed from above. Additionally, when viewed from above, the edge of the first upper space (31s1) is formed in a circular shape.

[0207] The inner surface (31b) of the upper body (31) surrounding the first upper space (31s1) may be named the ‘first inner surface (31b)’.

[0208] The first inner surface (31b) may have the same shape as the inner surface (or inner circumference) of the cylinder.

[0209] The first inner surface (31b) has a predetermined length (width) from the upper body (31) toward the lower body (32). For example, the first inner surface (31b) has a predetermined length (width) in the vertical direction.

[0210] The length between the upper and lower portions of the first inner surface (31b) corresponds to the width of the first inner surface (31b).

[0211] The diameter of the upper portion of the first inner surface (31b) and the diameter of the lower portion of the first inner surface (31b) may be the same.

[0212] The first inner surface (31b) may have the same diameter at each point from the top to the bottom (in the width direction).

[0213] The cyclone section (30) is provided with an inlet (31h1). The inlet (31h1) is formed in the upper body (31). Air (flow) supplied from the shear supply section (20) flows into the interior of the cyclone section (30) through the inlet (31h1). As previously described, the air (flow) contains raw materials and foreign substances.

[0214] The cyclone flow descends while moving spirally along the inner surface (31b, 31c) surrounding the inner space (31s) of the upper body (31), and when it reaches the lower end of the upper body (31), it reverses and rises along the center of the inner space (31s) of the upper body (31) and is discharged through the outlet (31h2) formed in the upper plate (31a) of the upper body (31).

[0215] The air (flow) discharged through the outlet (31h2) formed in the upper body (31) contains raw materials and does not contain foreign substances. Since foreign substances move to the lower body (32) due to the influence of gravity, they are not included in the discharged air (flow).

[0216] The inlet (31h1) of the upper body (31) is in communication with the first upper space (31s1), which is the internal space (31s) of the upper body (31).

[0217] The air (flow) supplied by the shear supply unit (20) to the cyclone unit (30) enters the first upper space (31s1) through the inlet (31h1) of the upper body (31).

[0218] The inlet (31h1) of the upper body (31) faces the first inner surface (31b). Accordingly, the air (flow) introduced into the first upper space (31s1) moves downward in a spiral along the first inner surface (31b).

[0219] At this time, foreign substances contained in the air (flow) move to the second upper space (31s2) due to the action of gravity because the particles are large.

[0220] The inner surface (31c) of the upper body (31) surrounding the second upper space (31s2) is formed in a circular shape when viewed from above. Additionally, when viewed from above, the edge of the second upper space (31s2) is formed in a circular shape.

[0221] The inner surface (31c) of the upper body (31) surrounding the second upper space (31s2) may be named the ‘second inner surface (31c)’.

[0222] The second inner surface (31c) may have the same shape as the inner surface (or inner circumference) of the cylinder. However, the diameter of the upper part of the cylinder is provided to be wider than the diameter of the lower part.

[0223] The second inner surface (31c) has a predetermined length (width) from the upper body (31) toward the lower body (32). For example, the second inner surface (31c) has a predetermined length (width) in the vertical direction.

[0224] The length between the upper and lower parts of the second inner side (31c) corresponds to the width of the second inner side (31c).

[0225] The second inner surface (31c) is formed at an angle, so that as it goes from the upper part to the lower part (in the width direction) of the second inner surface (31c), the diameter at each point can decrease.

[0226] To elaborate, the diameter of the upper part of the second upper space (31s2) is formed to be wider than the diameter of the lower part of the second upper space (31s2).

[0227] For example, the second inner surface (31c) is formed in a funnel shape or an inverted cone shape when viewed from one side (left or right) of the second upper space (31s2).

[0228] The diameter of the upper part of the second upper space (31s2) may be the same as the diameter of the lower part of the first upper space (31s1).

[0229] The air (flow) introduced into the first upper space (31s1) moves in a spiral pattern along the first inner surface (31b) and the second inner surface (31c).

[0230] At this time, foreign substances contained in the air (flow) move to the lower part of the second upper space (31s2) due to the action of gravity because the particles are large.

[0231] The lower part of the second upper space (31s2) is connected to the lower body (32). That is, the lower body (32) is positioned below the second upper space (31s2).

[0232] The lower body (32) serves as a dust collector for collecting foreign substances.

[0233] A hole (31h3) is formed in the lower part of the upper body (31), and the hole (31h3) can be named the 'lower hole (31h3) of the upper body (31)'.

[0234] The lower hole (31h3) of the upper body (31) is in communication with the second upper space (31s2).

[0235] The lower body (32) contains foreign matter. The foreign matter accumulates in the internal space (21s) of the lower body (32).

[0236] The lower body (32) includes an upper hole (32h).

[0237] The upper hole (32h) is formed in the lower body (32) and communicates with the lower hole (31h3) of the upper body (31). Also, the upper hole (32h) communicates with the internal space (32s) of the lower body (32).

[0238] The upper hole (32h) can be formed, for example, in the upper plate (32a) of the lower body (32).

[0239] If the lower body (32) has an upper hole (32h) and an internal space (21s), the internal and external shapes of the lower body (32) are not limited to a specific shape.

[0240] Foreign substances contained in the air (flow) move to the lower part of the second upper space (31s2) of the upper body (31), pass through the lower hole (31h3) of the upper body (31) and the upper hole (32h) of the lower body (32), and accumulate in the internal space (32s) of the lower body (32).

[0241] According to an embodiment of the present invention, the upper body (31) and the lower body (32) can be combined and separated from each other.

[0242] For example, a screw groove is formed on the inner surface (second inner surface (31c)) of the upper body (31) surrounding the lower hole (31h3) of the upper body (31), and a screw thread is formed on the outer surface of the lower body (32) surrounding the upper hole (32h), so that the upper body (31) and the lower body (32) can be joined in a manner in which the screw thread is fastened to the screw groove (screw fastening method).

[0243] And the upper body (31) and the lower body (32) can be separated in such a way that the screw thread is released from the screw groove.

[0244] The upper body (31) and the lower body (32) can be joined and separated from each other in other ways known in addition to the screw fastening method described above.

[0245] As the upper body (31) and the lower body (32) are separated from each other, foreign matter accumulated on the lower body (32) can be removed.

[0246] Foreign matter accumulated in the internal space (32s) of the lower body (32) can be removed after the lower body (32) is separated from the upper body (31). The lower body (32) from which foreign matter has been removed can be combined with the upper body (31).

[0247] Meanwhile, a separate pipe (second pipe) may be provided (connected) between the upper hole (32h) of the lower body (32) and the lower hole (31h3) of the upper body (31).

[0248] One end of the second pipe is connected to the lower hole (31h3) of the upper body (31), and the other end of the second pipe is connected to the upper hole (32h) of the lower body (32).

[0249] Foreign matter in the internal space (21s) of the upper body (31) passes through the lower hole (31h3) of the upper body (31), the second pipe, and the upper hole (32h) of the lower body (32) and accumulates in the internal space (32s) of the lower body (32).

[0250] In the embodiment equipped with the aforementioned second pipe, the other end of the second pipe and the lower body (32) may be joined and separated from each other, for example, by the aforementioned screw fastening method. The second pipe and the lower body (32) may be joined and separated from each other by other known methods in addition to the aforementioned screw fastening method.

[0251] According to another embodiment of the present invention, a pipe (third pipe) (32L) may be connected to the internal space (32s) of the lower body (32) (see FIG. 9).

[0252] A pipe hole (32h2) for connecting a third pipe (32L) may be formed in the lower body (32). The pipe hole (32h2) is a hole that penetrates the lower body (32).

[0253] Specifically, the cyclone section (30) may include a foreign matter removal pump (321) and a third pipe (32L) connected thereto (see FIG. 9).

[0254] The foreign matter removal pump (321) is a pump device that sucks in air and foreign matter in the internal space (21s) of the lower body (32).

[0255] A third pipe (32L) is connected to the lower body (32), and a foreign matter removal pump (321) is connected to the third pipe (32L).

[0256] Specifically, the third pipe (32L) includes a first end and a second end, the first end of the third pipe (32L) is connected to the pipe hole (32h2) of the lower body (32), and the second end of the third pipe (32L) is connected to the foreign matter removal pump (321).

[0257] When the foreign matter removal pump (321) is operated, the foreign matter accumulated in the internal space (32s) of the lower body (32) is moved to the outside through the third pipe (32L). Accordingly, the foreign matter can be easily removed without the lower body (32) needing to be separated from the upper body (31).

[0258] In addition, the foreign matter removal pump (321) can be operated by the control unit at a preset time to remove foreign matter accumulated in the lower body (32). Accordingly, the time required to remove foreign matter can be shortened.

[0259] In addition, the foreign substance removal pump (321) can be operated even while the foreign substance removal device of the present invention is in operation, and foreign substances accumulated in the lower body (32) can be discharged to the outside of the lower body (32) in real time.

[0260] Since the lower body (32) is not affected by the performance of the cyclone flow, the lower body (32) can be separated even while the foreign matter removal device is operating. That is, foreign matter contained in the lower body (32) can be removed in real time by the user or by the foreign matter removal pump (321).

[0261] In addition, the size and shape of the lower body (32) can be easily changed as they are independent of the performance of the cyclone flow.

[0262] Among the air (flow) that moves from the front supply section (20) to the cyclone section (30), foreign substances move to the lower body (32), and raw materials flow into the rear discharge section (40).

[0263] The foreign substance removal device of the present invention is equipped with a cyclone section (30), so that foreign substances are collected in the lower body (32) of the cyclone section (30) and raw materials are discharged to the outside of the cyclone section (30).

[0264] That is, the foreign substance removal device of the present invention is a device that uses raw materials discharged from the cyclone section (30) in the secondary battery manufacturing process, rather than using foreign substances filtered in the cyclone section (30).

[0265] The cyclone section (30) is equipped with a discharge line (31L).

[0266] The discharge line (31L) is a type of pipe and has a preset length.

[0267] The discharge line (31L) is positioned between the cyclone section (30) and the rear discharge section (40) and is connected to the cyclone section (30) and the rear discharge section (40).

[0268] One end of the discharge line (31L) is connected to the cyclone section (30), and the other end of the discharge line (31L) is connected to the rear discharge section (40).

[0269] Specifically, one end of the discharge line (31L) is connected to the outlet (31h2) of the cyclone section (30), and the other end of the discharge line (31L) is connected to the inlet (41h1) of the rear discharge section (40).

[0270] The outlet (31h2) of the cyclone section (30) is formed in the upper plate (31a) of the upper body (31) and is a hole penetrating the upper plate (31a).

[0271] The outlet (31h2) of the cyclone section (30) is formed at the center of the upper plate (31a).

[0272] One end of the discharge line (31L) can be positioned in the first upper space (31s1) of the cyclone section (30) by passing through the outlet (31h2) of the cyclone section (30).

[0273] When one end of the discharge line (31L) is placed in the second upper space (31s2) of the upper body (31), foreign matter moving downward (falling) from the second upper space (31s2) can flow into the one end of the discharge line (31L), so the one end of the discharge line (31L) is located in the first upper space (31s1) of the upper body (31).

[0274] The raw material inside the cyclone section (30) moves to the outlet (31h2) of the cyclone section (30) by the suction force of the rear pump (43) provided in the rear discharge section (40), and then moves into the interior of the rear discharge section (40) by passing through the discharge line (31L) and the inlet (41h1) of the rear discharge section (40). Here, the interior of the cyclone section (30) represents the internal space (31s) of the upper body (31).

[0275] According to an embodiment of the present invention, the foreign substance removal device of the present invention may include a parallel multi-stage cyclone section (30) (see FIG. 10).

[0276] The parallel multi-stage cyclone section (30) indicates that a plurality of the aforementioned cyclone sections (30) are provided and connected in parallel.

[0277] The parallel multi-stage cyclone section (30) is connected by separating one inlet and one outlet into multiple parts, and allows multiple cyclone sections (30) to operate simultaneously.

[0278] As described above, the cyclone side line (25L) is positioned between the feeder section (25) and the cyclone section (30), and the discharge line (31L) is positioned between the cyclone section (30) and the rear discharge section (40).

[0279] One end of the cyclone-side line (25L) is connected to the outlet (25h2) of the feeder section (25), and the other end of the cyclone-side line (25L) is connected to the inlet (31h1) of the cyclone section (30).

[0280] And, one end of the discharge line (31L) is connected to the outlet (31h2) of the cyclone section (30), and the other end of the discharge line (31L) is connected to the inlet (41h1) of the rear discharge section (40).

[0281] In the parallel multi-stage cyclone section (30), the other end of the cyclone-side line (25L) and the one end of the discharge line (31L) are separated as many times as there are multiple cyclone sections (30). The separated other end of the cyclone-side line (25L) and the one end of the discharge line (31L) are connected to each of the multiple cyclone sections (30).

[0282] For example, when the parallel multi-stage cyclone section (30) is equipped with two cyclone sections (30) (a first cyclone section (30a) and a second cyclone section (30b)), the other end of the cyclone-side line (25L) and the one end of the discharge line (31L) are each separated into two.

[0283] The other end of the cyclone-side line (25L) separated into two parts can be divided into a first end (25L1) and a second end (25L2), and the one end of the discharge line (31L) separated into two parts can be divided into a first end (31L1) and a second end (31L2).

[0284] The first end (25L1) of the cyclone-side line (25L) is connected to the inlet (31h1) of the first cyclone section (30a), and the second end (25L2) is connected to the inlet (31h1) of the second cyclone section (30b).

[0285] And, the first end (31L1) of the discharge line (31L) is connected to the outlet (31h2) of the first cyclone section (30a), and the second end (31L2) is connected to the outlet (31h2) of the second cyclone section (30b).

[0286] Additionally, the parallel multi-stage cyclone section (30) may be equipped with three or more cyclone sections (30) (such as the first cyclone section (30), the second cyclone section (30), and the third cyclone section (30)), and each of the other end of the cyclone side line (25L) and the end of the discharge line (31L) may be separated into three or more parts.

[0287] Foreign substances in the air (flow) supplied from the feeder section (25) to the parallel multi-stage cyclone section (30) through the cyclone side line (25L) are removed while passing through multiple cyclone sections (30) simultaneously, and raw materials are introduced into the rear discharge section (40).

[0288] The foreign substance removal device of the present invention is equipped with a plurality of cyclone sections (30) arranged in parallel, thereby allowing a larger flow rate to be sent to the parallel multi-stage cyclone section (30) and enabling a large amount of raw material from which foreign substances have been removed to be obtained.

[0289] According to another embodiment of the present invention, the foreign matter removal device of the present invention may include a serial multi-stage cyclone section (30) (see FIG. 11).

[0290] The series multi-stage cyclone section (30) indicates that a plurality of the aforementioned cyclone sections (30) are provided and connected in series.

[0291] The series multi-stage cyclone section (30) allows the flow passing through one cyclone section (30) to flow into an adjacent cyclone section (30). The cyclone section (30) and the adjacent cyclone section (30) are connected by a connecting line (CL).

[0292] The serial multi-stage cyclone section (30) is equipped with a connecting line (CL).

[0293] The connection line (CL) is a type of piping and has a preset length.

[0294] A connecting line (CL) is positioned between the cyclone section (30) and the adjacent cyclone section (30), and is connected to the cyclone section (30) and the adjacent cyclone section (30).

[0295] One end of the connecting line (CL) is connected to the cyclone section (30), and the other end of the connecting line (CL) is connected to the adjacent cyclone section (30).

[0296] Specifically, one end of the connecting line (CL) is connected to the outlet (31h2) of the cyclone section (30), and the other end of the connecting line (CL) is connected to the inlet (31h1) of the adjacent cyclone section (30).

[0297] When the serial multi-stage cyclone section (30) is equipped with a plurality (N) of cyclone sections (30), the connection line (CL) is provided in a number (N-1) that is one less than the number of cyclone sections (30).

[0298] For example, in the case where the series multi-stage cyclone section (30) is equipped with two cyclone sections (30) (a first cyclone section (30a) and a second cyclone section (30b)),

[0299] One end of the cyclone-side line (25L) is connected to the outlet (25h2) of the feeder section (25), and the other end of the cyclone-side line (25L) is connected to the inlet (31h1) of the first cyclone section (30a).

[0300] One end of the connecting line (CL) (first connecting line (CL)) is connected to the outlet (31h2) of the first cyclone section (30a), and the other end of the connecting line (CL) (first connecting line (CL)) is connected to the inlet (31h1) of the second cyclone section (30b).

[0301] One end of the discharge line (31L) is connected to the outlet (31h2) of the second cyclone section (30b), and the other end of the discharge line (31L) is connected to the inlet (41h1) of the rear discharge section (40).

[0302] Additionally, the serial multi-stage cyclone section (30) may be equipped with three cyclone sections (30) (a first cyclone section (30), a second cyclone section (30), and a third cyclone section (30)). In this embodiment, a first connecting line (CL) is arranged between the first cyclone section (30) and the second cyclone section (30), and a second connecting line (CL) is arranged between the second cyclone section (30) and the third cyclone section (30).

[0303] Foreign substances in the air (flow) supplied from the feeder section (25) to the serial multi-stage cyclone section (30) through the cyclone side line (25L) are removed as they pass through the plurality of cyclone sections (30) in sequence, and the raw material flows into the rear discharge section (40).

[0304] The foreign substance removal device of the present invention is equipped with a plurality of cyclone sections (30) arranged in series, thereby enabling the production of high-quality raw materials from which a large amount of foreign substances have been removed.

[0305] Thus, the foreign substance removal device of the present invention is equipped with a parallel multi-stage cyclone section (30) and / or a series multi-stage cyclone section (30) to improve the foreign substance dust collection efficiency.

[0306] The foreign substance removal device of the present invention is equipped with a cyclone section (30) for removing foreign substances, thereby enabling the securing of high-quality raw materials from which foreign substances have been removed.

[0307] That is, the foreign substance removal device of the present invention can completely remove large-sized foreign substances (30 μm or larger) that affect raw material defects to 0%.

[0308] In addition, the foreign substance removal device of the present invention can quickly secure a large amount of high-quality raw material from which foreign substances have been removed by arranging a plurality of cyclone sections (30) in parallel or in series.

[0309] Factors (variables) such as the size of the cyclone section (30) and the shape, size, and performance of the cyclone flow can be adjusted according to the size of the raw materials and foreign substances.

[0310] The size, number, and arrangement type (parallel or series) of the cyclone section (30) can be varied according to the user's requirements. Here, the user's requirements may include the amount of raw material and / or the amount of flow that moves the raw material.

[0311] The raw material discharged from the cyclone section (30) moves to the rear discharge section (40).

[0312] The rear discharge section (40) is connected to the cyclone section (30) by the discharge line (31L).

[0313] The rear discharge section (40) can separate raw materials contained in the air (flow) from the flow using a bag filter (bad filter) and then collect the raw materials by gravity sedimentation.

[0314] The rear discharge section (40) separates the raw material from the air (flow). Foreign substances contained in the air (flow) are removed as they pass through the cyclone section (30), and the raw material is in a high-quality state with the foreign substances removed.

[0315] The rear discharge section (40) includes a rear case (41), a rear filter section (42), and a rear pump (43) (see FIG. 12).

[0316] The rear case (41) is a case that forms the exterior of the rear discharge section (40).

[0317] The rear case (41) includes an internal space (41s) and can be formed in any shape that forms the internal space (41s). The shape of the rear case (41) is not limited to a specific shape.

[0318] A rear filter section (42) is placed in the internal space (41s) of the rear case (41).

[0319] The rear filter section (42) separates raw materials from air. The rear filter section (42) represents a known bag filter.

[0320] The rear filter section (42) includes a rear filter (421) that separates air and raw materials and a rear filter support section (422) that supports the rear filter (421).

[0321] The rear filter (421) is formed of a material that allows air to pass through but does not allow raw materials to pass through. A conventional known filter may be used for the rear filter (421).

[0322] The rear filter support is connected to the rear filter (421).

[0323] The rear filter support (422) is formed of a material that does not allow both air and raw materials to pass through.

[0324] One or more rear filters (421) are placed in the center of the rear filter support (422).

[0325] The edge of the rear filter support (422) is joined to the inner surface surrounding the internal space (41s) of the rear case (41). The rear filter support (422) can be detachably joined to the inner surface of the rear case (41).

[0326] The rear filter section (42) is positioned at the top in the internal space (21s) of the rear case (41).

[0327] According to an embodiment, the rear filter section (42) can be shaken by a user or by connecting to a motor device (not shown). Accordingly, raw materials attached to the rear filter section (42) can fall downward.

[0328] The internal space (41s) of the rear case (41) can be divided into a first rear space (41s1) and a second rear space (41s2) by the rear filter section (42). To elaborate, the rear filter section (42) divides the internal space (41s) of the rear case (41) into a first rear space (41s1) and a second rear space (41s2).

[0329] The first rear space (41s1) is positioned on one side (e.g., the top), and the second rear space (41s2) is positioned on the other side (e.g., the bottom).

[0330] A portion of the rear filter (421) of the rear filter section (42) may be placed in the second rear space (41s2) depending on the type of filter. For example, this indicates a case where the rear filter (421) is formed in a rod shape.

[0331] Meanwhile, the rear case (41) is equipped with an inlet (41h1) and an outlet (41h2).

[0332] The inlet (41h1) and the outlet (41h2) are holes that penetrate the rear case (41) and are connected to the internal space (41s) of the rear case (41).

[0333] The inlet (41h1) is a passage (hole) through which the flow passing through the cyclone section (30) enters the internal space (41s) of the rear case (41).

[0334] And, the outlet (41h2) is a passage (hole) through which air, from which raw materials have been removed by the rear filter section (42) in the flow that has entered the internal space (41s) of the rear case (41), exits to the outside of the rear case (41).

[0335] In an embodiment in which a rear filter section (42) is horizontally positioned in the internal space (41s) of a rear case (41) and a first rear space (41s1) and a second rear space (41s2) are vertically partitioned (an embodiment in which the first rear space (41s1) is positioned above and the second rear space (41s2) is positioned below), an inlet (41h1) is formed in a position communicating with the second rear space (41s2) in the rear case (41), and an outlet (41h2) is formed in a position communicating with the first rear space (41s1) in the rear case (41).

[0336] The rear discharge section (40) is equipped with a rear pump line (41L).

[0337] The downstream pump line (41L) is a type of piping and has a preset length.

[0338] The rear pump (43) is connected to the rear case (41) by the rear pump line (41L).

[0339] The rear pump line (41L) is positioned between the rear case (41) and the rear pump (43) and is connected to the rear case (41) and the rear pump (43).

[0340] One end of the rear pump line (41L) is connected to the outlet (41h2) of the rear case (41), and the other end of the rear pump line (41L) is connected to the rear pump (43).

[0341] The rear pump (43) is a known pump device and may be a vacuum pump or a negative pressure pump.

[0342] The rear pump (43) generates a flow. The flow indicates that air is moving. The rear pump (43) can draw in air to cause the air to move.

[0343] When the rear pump (43) operates, the air moves toward the rear pump (43) sucking in air.

[0344] When the rear pump (43) operates and sucks in air, the air moves, and at this time, the raw material and / or foreign material moves along with the air.

[0345] The rear pump (43) generates flow to move raw materials and foreign substances that have moved to the outlet (25h2) of the feeder section (25) into the internal space (21s) of the cyclone section (30), and separates the raw materials and foreign substances as they move within the internal space (21s) of the cyclone section (30).

[0346] The rear pump (43) sucks in air from the cyclone section (30) and the rear case (41) and discharges it to the outside.

[0347] When the rear pump (43) is operated, the raw material in the cyclone section (30) moves to the internal space (41s) of the rear case (41), the raw material accumulates in the rear filter section (42), and moves to the bottom surface (41a) of the rear case (41).

[0348] Specifically, when the rear pump (43) is operated, the internal air of the cyclone section (30) moves through the discharge line (31L) to the internal space (41s) of the rear case (41), and is then discharged to the outside through the rear pump line (41L).

[0349] When the internal air of the cyclone section (30) moves into the internal space (41s) of the rear case (41), the raw material also moves along with it.

[0350] The raw material is caught in the rear filter section (42) (specifically the rear filter (421)) placed in the rear case (41) and accumulated in the rear filter section (42), and the air passes through the rear filter (421) and is discharged to the outside through the rear pump line (41L).

[0351] The raw material accumulated in the rear filter section (42) moves downward (falls) due to the influence of gravity.

[0352] In the rear case (41), the rear filter section (42) is positioned between the inlet (41h1) and the outlet (41h2). To elaborate, the rear filter section (42) is positioned across the inlet (41h1) and the outlet (41h2) and divides the internal space (41s) of the rear case (41) into two areas (a first rear space (41s1) and a second rear space (41s2)).

[0353] Specifically, the edge of the rear filter support (422) is positioned between the inlet (41h1) and the outlet (41h2) of the rear case (41).

[0354] The air coming out of the inlet (41h1) enters the second rear space (41s2) of the rear case (41), passes through the rear filter (421) of the rear filter section (42), moves to the first rear space (41s1) of the rear case (41), and then enters the outlet (41h2).

[0355] Among the air and raw materials that have moved to the second rear space (41s2) of the rear case (41), some of the air passes through the rear filter (421) of the rear filter section (42) by the suction force of the rear pump (43), then moves to the first rear space (41s1) of the rear case (41), and then moves to the rear pump line (41L) through the outlet (41h2) and is discharged to the outside.

[0356] At this time, the raw material cannot pass through the rear filter (421) of the rear filter section (42) and accumulates in the rear filter (421). The raw material accumulated in the rear filter (421) moves (falls) to the bottom of the second rear space (41s2) of the rear case (41) due to the action of gravity.

[0357] The fallen raw material accumulates on the lower side (bottom surface (41a) of the rear case (41)) of the second rear space (41s2) of the rear case (41).

[0358] The second rear space (41s2) of the rear case (41) is a chamber for collecting raw materials, and is wide enough so that the raw materials can fall freely downward due to the action of gravity.

[0359] Raw materials that do not pass through the rear filter section (42) move downward by gravity (fall) and accumulate on the bottom surface (41a) of the rear case (41).

[0360] According to another embodiment of the present invention, the rear discharge section (40) may not have a rear filter section (42). In this embodiment, the rear case (41) may be a diffusion chamber (see FIG. 13).

[0361] The diffusion chamber is provided with an internal space (41s), an inlet (41h1), and an outlet (41h2), just like the rear case (41).

[0362] The size of the internal space (41s) of the diffusion chamber is sufficiently larger than the size of the inlet (41h1), so that the air (flow) entering through the inlet (41h1) by the operation of the rear pump (43) (or front pump (262)) enters the internal space (41s) and the flow velocity converges to zero. The air (flow) contains raw materials.

[0363] Accordingly, the raw material moves (falls) to the bottom surface of the diffusion chamber due to the influence of gravity, and the air exits to the outside through the outlet (41h2).

[0364] Raw materials accumulate on the bottom surface of the diffusion chamber.

[0365] Since there is no rear filter section (42) in the diffusion chamber, the phenomenon of raw materials accumulating on the rear filter (421) and clogging the rear filter (421) does not occur.

[0366] As described above, the raw material moves from inside the cyclone section (30) to inside the rear discharge section (40) by the operation of the rear pump (43) provided in the rear discharge section (40), and then moves (falls) by gravity in the internal space (41s) of the rear discharge section (40) and accumulates on the bottom surface (41a) of the rear discharge section (40).

[0367] The foreign substance removal device of the present invention is a device that allows raw materials accumulated on the bottom surface (41a) of the rear discharge section (40) to be used in the manufacturing process of a secondary battery. The raw materials are high-quality raw materials that do not contain foreign substances.

[0368] Since the raw material moves (falls) by gravity without a separate driving device (power source) in the internal space (41s) of the rear case (41), the cost associated with moving the raw material can be reduced and the structure of the foreign material removal device can be simplified.

Claims

1. A shear supply section into which raw materials and foreign substances in the firing chamber are introduced; A cyclone unit connected to the shear supply unit above and separating the raw material and the foreign substance; and A foreign matter removal device comprising a rear discharge section connected to the above-mentioned cyclone section and accumulating the above-mentioned raw material.

2. In Paragraph 1, The above-mentioned shear supply unit includes a shear filter unit disposed in the internal space of a filter room and a pump connected to the filter room. A foreign matter removal device in which, when the above pump is operated, raw materials and foreign substances in the above calcination chamber move into the internal space of the above filter chamber, and the raw materials and foreign substances accumulate in the above shear filter section and move to the bottom of the above filter chamber.

3. In Paragraph 2, The above-mentioned shear supply unit includes a storage room positioned below the filter room and a feeder unit connected to the storage room. A foreign substance removal device in which the above raw material and the above foreign substance are moved to the cyclone section by passing through the above storage room and the above feeder section in sequence.

4. In Paragraph 3, The above-mentioned shear supply unit includes a cyclone-side line and an air inlet provided in the cyclone-side line, and One end of the above-mentioned cyclone-side line is connected to the above-mentioned feeder section, and the other end of the above-mentioned cyclone-side line is connected to the above-mentioned cyclone section. The above air inlet is provided between one end and the other end of the cyclone-side line, and is a foreign matter removal device.

5. In Paragraph 4, A foreign matter removal device that, when the rear pump provided in the rear discharge section operates, the air introduced into the air inlet section by the suction force of the rear pump causes flow and moves into the interior of the cyclone-side line, thereby moving raw materials and foreign matter that have reached the outlet of the feeder section into the interior of the cyclone section.

6. In Paragraph 4, The above shear supply unit is equipped with a shear pump disposed in the air inlet unit, and A foreign matter removal device in which external air is introduced into the air inlet by the above-mentioned shear pump, and the air introduced into the air inlet causes flow and moves into the interior of the cyclone-side line, thereby moving raw materials and foreign matter that have reached the outlet of the feeder section into the interior of the cyclone section.

7. In Paragraph 4, A foreign matter removal device in which a filter for filtering foreign matter is disposed in the air inlet section.

8. In Paragraph 3, The above feeder part is a foreign matter removal device that is one of a piston feeder, a screw feeder, or a vibrating feeder.

9. In Paragraph 1, The above-mentioned cyclone section includes an upper body and a lower body, and The above raw materials and the above foreign substances enter the internal space of the upper body through an inlet provided in the upper body, and A foreign matter removal device in which the above raw material moves to the rear discharge section through an outlet provided in the upper body, and the above foreign matter is collected in the lower body.

10. In Paragraph 9, A foreign matter removal device in which the upper body and the lower body are joined and separated from each other.

11. In Paragraph 9, The above-mentioned cyclone section includes a foreign matter removal pump and a pipe connected to the foreign matter removal pump, and One end of the above pipe is connected to the pipe hole of the lower body, and the other end of the above pipe is connected to the foreign matter removal pump. A foreign matter removal device in which, when the above foreign matter removal pump is operated, the foreign matter accumulated in the internal space of the lower body moves to the outside through the pipe.

12. In Paragraph 1, A foreign matter removal device comprising a plurality of cyclone sections, wherein the plurality of cyclone sections are connected in parallel.

13. In Paragraph 1, The above cyclone section is provided in multiple numbers, and the multiple cyclone sections are connected in series. A foreign matter removal device in which the above-mentioned cyclone sections adjacent to each other are connected by a connecting line.

14. In Paragraph 1, The above-mentioned rear discharge section includes a rear filter section disposed in the internal space of the rear case and a rear pump connected to the rear case. A foreign matter removal device in which, when the above-mentioned downstream pump is operated, the raw material in the cyclone section moves into the internal space of the above-mentioned downstream case, the raw material accumulates in the above-mentioned downstream filter section and moves to the bottom surface of the above-mentioned downstream case.

15. In Paragraph 1, The above-mentioned rear discharge section includes a rear case and a rear pump connected to the rear case, and The above-mentioned rear case includes an inlet through which raw materials and air are introduced, and an outlet through which air is discharged. A foreign matter removal device in which, when the above-mentioned rear pump operates, the raw material in the cyclone section moves into the internal space through the inlet of the above-mentioned rear case, and the raw material moves to the bottom surface of the above-mentioned rear case due to the influence of gravity.

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