KR102428910B1 - Apparatus for filling fixed quantity of fine powdered material for secondary battery - Google Patents

Abstract

The present invention improves work efficiency by minimizing the loss of fine powder material that may occur due to various factors in the process of transferring the fine powder material to a filling device combined with a fine powder material supply device for secondary batteries, thereby shortening the working time It relates to a quantitative filling device for fine powder material for secondary batteries that allows the fine powder material to be filled in a fixed amount, and it converts the vortex generated during the transport process of the fine powder material into rectification and uses a ventilation hole instead of filtering the fine powder material. Provided is a quantitative filling device for fine powder material for secondary batteries that can minimize the loss of fine powder material and achieve the effect of charging a quantitative amount by suppressing the leakage of the powder material and enabling recirculation.

Description

Apparatus for filling fixed quantity of fine powdered material for secondary battery

The present invention relates to a device for filling a fine powder material for a secondary battery, and in particular, a fine powder material caused by various factors that may occur in the process of transferring the fine powder material to a filling device combined with a device for supplying a fine powder material for a secondary battery. It relates to a quantitative filling device for fine powder material for secondary batteries, which improves work efficiency by reducing the loss of

Lithium-ion batteries, which are representative secondary batteries, are not only widely used as a power source for mobile devices, but also attract attention as a power source for next-generation electric vehicles. have.

The fine powder material for secondary batteries is mixed and filled in a container and put into the secondary battery manufacturing process. Due to the nature of the fine powder material filled in the container, dust is generated during transport and filling, so the planned filling amount cannot be precisely met. have.

1 is a simplified view of a powder supply device according to the prior art. As shown, the fine powder material is transferred from the secondary battery fine powder material supply device 10 to the filling device 20 through a transfer pipe 30 . It goes through the process of mixing in free fall. At this time, in order for the fine powder material to freely fall through the transport pipe 30 connecting the supply device 10 and the filling device 20, the air in the transport pipe 30 must be discharged as much as the amount of powder being transported. The filling device 20 is essentially provided with a vent hole 21 to which the exhaust pipe 40 is connected. Therefore, when the fine powder material is input from the supply device 10 to the filling device 20, a vortex is generated in the nozzle 23, and accordingly, a part of the fine powder material is introduced into the ventilation hole 21, There is a problem in that the amount is not filled due to loss.

In order to solve this problem, in the prior art, a dust collecting fan having a filter that filters out the fine powder material and sucks and discharges only air is mounted in the vent 21 of the filling device 20 . However, the filling device having such a dust collecting fan can prevent the loss of the fine powder material by blocking the fine powder material discharged to the exhaust pipe 40 with a filter, but it is impossible to quantitatively fill as much as the fine powder material attached to the filter, and the filter Since the amount of air passing through is rapidly reduced, the vortex generation in the nozzle 23 increases in a short time, and there is a problem in that the filter needs to be replaced frequently.

In addition, fine powders with a size of several tens of micrometers or less cause agglomeration due to electrostatic attraction, which causes the agglomerated powder to have extremely deteriorated fluidity, so that a part of the powder remains in the transfer pipe 30, resulting in another loss. will occur

Accordingly, in order to minimize the loss of the fine powder material in the filling process and fill a fixed amount, the nozzle structure of the improved filling device that can reduce the vortex that causes the loss of the fine powder material or the fine powder material even when the vortex occurs There is an urgent need for a solution such as a structure of a ventilation hole that can suppress the discharge of gas to the outside.

KR 10-1390956 B1 (2014.04.24) KR 10-1455577 B1 (2014.10.21) KR 10-1295244 B1 (2013.08.05) KR 10-1878558 B1 (2018.07.09)

Therefore, the present inventors focus on solving the limitations and problems of the existing fine powder filling apparatus in comprehensive consideration of the above-mentioned matters, and convert the vortex generated in the process of transferring the fine powder material into a rectification and convert the fine powder material into a rectification. By suppressing the outflow to the vent rather than filtering, recirculation is possible, minimizing the loss of the fine powder material and developing a new structure for filling the fine powder material with the effect of filling a fixed amount. The present invention was created as a result of continuous research with the efforts of

Accordingly, the technical problem and object to be solved by the present invention is to accurately fill a container with a certain amount of fine powder material, but it can be evenly filled and transported to the container, thereby shortening the working time and improving the working efficiency. It is to provide a material quantitative filling device.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention for achieving the above object, there is provided an apparatus for quantitatively filling fine powder material for secondary batteries, comprising: a filling hopper that receives fine powder material transferred from a transfer pipe through an upper portion, and is provided with a discharge port at the lower portion; a nozzle connected to the conveying pipe and mounted on the filling hopper to spray the fine powder material transferred from the conveying pipe to the filling hopper; At least one vent hole provided on an upper side of the filling hopper to connect an exhaust pipe for discharging the air inside the filling hopper to the outside; When the air inside the filling hopper is discharged through the ventilation hole, the fine powder material sprayed from the nozzle to the filling hopper and falling into the discharge hole is prevented from flowing into the ventilation hole together with the discharged air. Doedoe installed inside of the, located between the nozzle and the ventilation hole, a blocking wall formed extending from the top to the bottom of the filling hopper by a certain length to directly block the fine powder material sprayed at the maximum spraying angle of the nozzle ; It is formed to extend obliquely from one side of the blocking wall to the upper portion of the discharge port, so that the fine powder material sprayed from the nozzle and collided with the blocking wall is not introduced together with the air discharged through the ventilation port. a diaphragm for allowing the powder material to flow in a direction opposite to the flow of air discharged through the vent; and a first baffle that is formed obliquely downward from the inner sidewall of the filling hopper and blocks the fine powder material moving with the air by changing the flow of air flowing into the vent along the lower side of the filling hopper. and obliquely protruding downward from the blocking wall toward the first baffle at a position higher than the first baffle, and changing the flow of air flowing to the vent along the lower surface of the first baffle, thereby moving with the air A second baffle that blocks the fine powder material used is formed obliquely downward from the inner sidewall of the filling hopper toward the second baffle at a position higher than the second baffle, and along the lower surface of the second baffle to the ventilation hole A third baffle for blocking the fine powder material moving together with the air by changing the flow of flowing air, and a third baffle from a position higher than the third baffle from the blocking wall and obliquely protruding downward toward the third baffle, and a separation unit composed of a fourth baffle that blocks the fine powder material moving together with the air by changing the flow of air flowing through the vent along the lower surface of the third baffle.

In addition, in the device for filling the fine powder material for a secondary battery according to the present invention, the ventilation holes are respectively provided on the left and right sides of the nozzle.

In addition, in the device for quantitatively filling fine powder material for secondary batteries according to the present invention, the filling hopper shakes the fine powder material attached to the upper and lower surfaces of the first to fourth baffles constituting the separation unit at least one of vibration and wind. It characterized in that it further comprises; a vibrating fan to fall using the.

In addition, in the device for quantitatively filling fine powder material for secondary batteries according to the present invention, the nozzle is characterized in that a radial groove is formed in the longitudinal direction on the outer side of the inner hollow.

In addition, in the device for filling fine powder material for secondary batteries according to the present invention, the ventilation hole is formed to protrude obliquely downward from the inner one side wall, and by changing the flow of air flowing from the filling hopper to the ventilation hole, together with the air A first ventilation gradient baffle that blocks the moving fine powder material, and from the other side wall facing the inner one side wall, it is formed to protrude obliquely downward toward the first ventilation gradient baffle at a position higher than the first ventilation gradient baffle, and the first By changing the flow of air flowing to the upper portion of the ventilation hole along the lower surface of the ventilation gradient baffle, a second ventilation gradient baffle that blocks the fine powder material moving together with the air and the second ventilation gradient baffle from the inner side wall at a higher position than the A third ventilation gradient baffle that is formed obliquely downward toward the second ventilation gradient baffle and blocks the fine powder material moving with the air by changing the flow of air flowing to the upper portion of the ventilation hole along the lower surface of the second ventilation gradient baffle It is characterized in that it is provided.

In addition, in the secondary battery fine powder material quantitative filling apparatus according to the present invention, the ventilation hole is inclined downward toward the third ventilation gradient baffle at a position higher than the third ventilation gradient baffle from the other side wall facing the inner one side wall. It is formed to protrude, and partly changes the flow of air flowing to the upper part of the ventilation hole along the lower surface of the third ventilation gradient baffle and passes it through a plurality of holes, thereby blocking the fine powder material moving with the air. It is characterized in that it further comprises a hole baffle of.

In addition, in the device for quantitatively filling fine powder material for a secondary battery according to the present invention, the ventilation hole includes a screw having a plurality of blades rotating in a direction opposite to the flow of air flowing from the filling hopper to the exhaust pipe and the ventilation hole It is mounted on the upper end of the and provided with a motor for rotating the screw through a rotation shaft connected to the screw, characterized in that the fine powder material contained in the air flowing from the filling hopper to the exhaust pipe is dropped into the filling hopper. .

In addition, in the device for quantitatively filling fine powder material for secondary batteries according to the present invention, the ventilation hole is equipped with a plurality of electromagnets on the outer periphery to supply power from the power supply to the air flowing from the filling hopper to the exhaust pipe. After separating the metallic fine powder material contained therein and collecting it on the inner wall, the power supply is cut off to drop the metallic fine powder material collected on the inner wall into the filling hopper.

As described above, the present invention has the effect of improving the working efficiency by shortening the working time because a certain amount of the fine powder material can be accurately filled in the container, but the container can be evenly filled and transported.

In addition, the present invention has the effect of increasing the price competitiveness of the product by minimizing the loss of the fine powder material, and accordingly, there is an effect of continuously increasing job creation and additional job creation in the manufacturing line for manufacturing the product.

1 is a view of a powder supply device according to the prior art;
Figure 2 is a cross-sectional view of the secondary battery fine powder material quantitative filling apparatus according to the present invention;
3 is a cross-sectional view of the vortex suppression nozzle of the secondary battery fine powder material quantitative filling apparatus according to the present invention;
4 is a cross-sectional view of a fine powder material discharge blocking unit of the secondary battery fine powder material quantitative filling device according to the present invention;
5 is a cross-sectional view of a vent for blocking the discharge of fine powder material of the fine powder material quantitative filling device for secondary batteries according to the first embodiment of the present invention;
6 is a cross-sectional view of the fine powder material discharge blocking vent of the secondary battery fine powder material quantitative filling device according to the second embodiment of the present invention;
7 is a cross-sectional view of a vent for blocking the discharge of fine powder material of the fine powder material quantitative filling device for secondary batteries according to the third embodiment of the present invention.

Hereinafter, an embodiment of a device for filling a secondary battery for a fine powder material according to the present invention will be described in detail with reference to the drawings. The embodiments described below are provided to fully inform those of ordinary skill in the scope of the invention, and the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Like elements in the drawings refer to like numerals wherever possible. Specific specific details appear in the following description, which are provided to help a more general understanding of the present invention, and are not intended to limit the present invention to specific embodiments, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes. In the description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Here, the accompanying drawings are illustrated by exaggerating or simplifying a part for convenience and clarity of explanation and understanding of the configuration and operation of the technology, and reveals that each component does not exactly match the actual size.

Terms such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only 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 referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, when it is said that a part includes a certain component, it does not exclude other components unless otherwise stated, but it means that other components may be further included, and the meaning of the term "part" denotes a unit or module form that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary are defined in consideration of the function in the present invention, which should be interpreted as a concept consistent with the technical idea of the present invention and a meaning commonly or commonly recognized in the art. and shall not be construed in an ideal or excessively formal sense unless explicitly defined in the present application.

2 is a cross-sectional view of a device for quantitatively filling fine powder material for secondary batteries according to the present invention, and FIG. It is a cross-sectional view of the fine powder material discharge blocking part of the fine powder material quantitative filling device for secondary batteries.

2 to 4, the filling device 200 according to the present invention for receiving the fine powder material for secondary batteries from the secondary battery fine powder material supply device through the transport pipe and filling it in a fixed amount is transferred from the transport pipe. The fine powder material is accommodated through the upper part, and a filling hopper 110 (hopper) having a discharge port 140 at the lower part, is connected to the transfer pipe and is mounted on the upper part of the filling hopper 110, and is transferred from the transfer pipe. A nozzle (120, nozzle) for spraying powder material into the filling hopper and one or more vents (130, vent) are provided on the upper side of the filling hopper 110 to connect the exhaust pipe for discharging the air inside the filling hopper to the outside hole), the blocking wall 170, the diaphragm 180, the separation unit 150 for separating the air discharged to the ventilation hole 130 and the fine powder material, and vibration for driving at least one of vibration and wind Consists of a fan (160).

When the air inside the filling hopper 110 is discharged through the ventilation hole 130, the blocking wall 170 is sprayed from the nozzle 120 into the filling hopper 110 and the fine powder material falling to the discharge port 140 is This is to block the air from flowing into the vent 130 together with the discharged air, and it is mounted inside the filling hopper 110, and may be located one or each on the left and right between the nozzle 120 and the vent 130. . The blocking wall 170 is formed to extend a predetermined length from the top to the bottom inside the filling hopper 110 to directly block the fine powder material sprayed at the maximum injection angle of the nozzle 120 . Of course, the lower part is spaced apart from the lower inclined surface of the filling hopper 110 to some extent so that the air can be discharged through the ventilation hole 130 .

The diaphragm 180 is a fine powder material sprayed from the nozzle 120 and collided with the blocking wall 170 so as not to be introduced together with the air discharged through the ventilation hole 130 , the fine powder material collided with the blocking wall 170 . is formed to extend in an oblique direction from one side of the blocking wall 170 to an upper portion of the outlet 140 so as to flow in the direction of the outlet 140 opposite to the flow of air discharged to the vent 130 . Like the blocking wall 170 , the lower part is spaced apart from the lower inclined surface of the filling hopper 110 to some extent so that air can be smoothly discharged through the ventilation hole 130 .

The separation unit 150 is for separating the fine powder material that moves together with the air exhausted from the filling hopper 110 to the ventilation hole 130 from the air, and separates the fine powder material from the air by changing the flow of air. .

The separation unit 150 is formed to protrude obliquely downward from the inner side wall, and by changing the flow of air flowing into the vent along the lower side of the filling hopper, the first baffle blocking the fine powder material moving with the air ( 151, baffle) and the vent hole along the lower surface of the first baffle 151 by protruding obliquely downward toward the first baffle 151 at a position higher than the first baffle 151 from the blocking wall. The second baffle 152 blocks the fine powder material moving together with the air by changing the flow of air flowing through the 152), the third baffle 153 that is formed obliquely downward to change the flow of air flowing into the ventilation hole along the lower surface of the second baffle 152 to block the fine powder material moving with the air. And, from the blocking wall, the third baffle 153 is obliquely protruded downward toward the third baffle 153 at a higher position than the third baffle 153, and the air flowing into the ventilation hole along the lower surface of the third baffle 153 By changing the flow, it is composed of a fourth baffle 154 that blocks the fine powder material moving with the air. Meanwhile, in FIG. 4 and the above description, the separation unit 150 according to the present invention is illustrated as being composed of four baffles, but the number of baffles may be changed as necessary.

As shown in FIG. 4 , the distance X between the baffles 151-154 constituting the separation unit 150 according to the present invention is preferably closer to the top, and the baffles 151-154 are filled. It is preferable that the angle α formed with the inner wall or the blocking wall 170 of the hopper 110 is smaller than the angle β formed with the central axis of the baffles 151-154. In addition, it is preferable that the length of the baffles 151-154 increases relatively downward.

The nozzle 120 is composed of a nozzle flange 121 to which the transport pipe is coupled, a nozzle body 122 and a nozzle tip 123, and a radial vortex on the outside of the inner hollow 124 of the nozzle body 122. The prevention groove 125 is formed in the longitudinal direction. 3 (a) is a top view of the nozzle 120 according to the present invention, (b) is a longitudinal cross-sectional view, the radial vortex prevention groove 125 is the inner hollow 124 of the nozzle body 122 outside of In addition, it may be formed on the outside of the inner hollow of the nozzle tip (123).

5 is a cross-sectional view of the fine powder material discharge blocking vent of the fine powder material quantitative filling apparatus for secondary batteries according to the first embodiment of the present invention, and FIG. 6 is the fine powder material for secondary batteries according to the second embodiment of the present invention. It is a cross-sectional view of the fine powder material discharge blocking vent of the quantitative filling apparatus, and FIG. 7 is a cross-sectional view of the fine powder material discharge blocking vent of the fine powder material quantitative filling apparatus for a secondary battery according to the third embodiment of the present invention.

First, a first embodiment of the ventilation hole 130 according to the present invention will be described in detail with reference to FIG. 5 . The ventilation hole 130 rotates in the opposite direction to the flow of air flowing from the filling hopper 110 to the exhaust pipe 40 . A screw 131 having a plurality of blades to , is composed of a rotation shaft 132 that rotates the screw 131 in a direction opposite to the flow of exhausted air according to the rotation of the motor 133 . The screw 131 drops the fine powder material contained in the air flowing from the filling hopper 110 to the exhaust pipe 40 into the filling hopper 110 while rotating.

Next, the second embodiment of the ventilation hole 130 according to the present invention shown in FIG. 6 will be described in detail. After installing a plurality of pieces, the power supply unit 135 supplies power to separate the metallic fine powder material (Pd) contained in the air flowing from the filling hopper 110 to the exhaust pipe, and collects them on the inner wall, then the power supply unit 135 cut off the power to drop the metallic fine powder material (Pd) collected on the inner wall into the filling hopper 110 . At this time, the operation of discharging the air inside the filling hopper 110 from the ventilation hole 130 repeats operation and stop at regular intervals, and when stopped, the power is cut off so that the fine powder material (Pd) is removed from the filling hopper 110. It is preferable to let it fall inside. Figure 6 (a) shows the electromagnet 134 surrounding the outer periphery of the vent 130 according to the second embodiment of the present invention, (b) is a longitudinal cross-sectional view, several electromagnets 134 are vents ( 130), which tightly surrounds the outer periphery.

Next, the third embodiment of the ventilation hole 130 according to the present invention shown in FIG. 7 will be described in detail. The ventilation hole 130 is formed to protrude downward from the inner one side wall, (130) By changing the flow of air flowing inside, the first ventilation gradient baffle (137a) to block the fine powder material moving with the air, and the first ventilation gradient baffle (137a) from the other side wall facing the inner one side wall (137a) It is formed to protrude obliquely downward toward the first ventilation baffle 137a from a higher position, and by changing the flow of air flowing into the exhaust pipe 40 along the lower surface of the first ventilation gradient baffle 137a. The second ventilation gradient baffle (137b) that blocks the powder material and the second ventilation gradient baffle (137b) from the inner one side wall are protruded obliquely downward toward the second ventilation gradient baffle (137b) at a higher position, and the second ventilation gradient baffle (137b) ) by changing the flow of air flowing into the exhaust pipe 40 along the lower surface of the , a third ventilation gradient baffle 137c to block the fine powder material moving with the air may be provided. At this time, although it has been shown in FIG. 7 and the above description that the ventilation baffles according to the present invention are composed of three, the number of the ventilation baffles can be changed if necessary.

In addition, the distance between the ventilation baffles 137a-137c is preferably closer to the top, and the angle between the ventilation baffles 137a-137c and the inner wall of the ventilation hole 130 is the ventilation baffles 137a-137c. It is preferably smaller than the angle formed with the axis. In addition, it is preferable that the length of the ventilation baffles 137a-137c increases relatively downward.

On the other hand, the ventilation hole 130 is formed to protrude obliquely downward toward the third ventilation gradient baffle 137c at a position higher than the third ventilation gradient baffle 137c from the other side wall facing the inner one side wall, and the third ventilation gradient baffle 137c ), a plurality of hole baffles (138a) that partially change the flow of air flowing into the exhaust pipe 40 along the lower surface and pass some through the holes 139 formed in plurality, thereby blocking the fine powder material moving with the air. , 138b, 138c) may be further provided. 7 and the above description, it is shown that the hole baffles according to the present invention are composed of three, but the number of hole baffles can be changed if necessary.

As described above, the fine powder material quantitative filling device for secondary batteries converts the vortex generated in the process of transferring the fine powder material into rectification and prevents the fine powder material from flowing through the vent, rather than filtering it. A certain amount of fine powder material can be accurately filled in the container, and the container can be filled and transported evenly, thereby shortening the working time and improving the working efficiency.

On the other hand, although the detailed description of the present invention has been described in detail with reference to preferred embodiments referenced by the accompanying drawings, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

40: exhaust pipe 100: filling device
110: filling hopper (hopper)
120: nozzle 121: nozzle flange
122: nozzle body 123: nozzle tip
124: nozzle hollow 125: vortex prevention groove
130: vent 131: screw (screw)
132: rotation shaft 133: rotation motor
134: electromagnet 135: power supply
136: fixing parts 137a, 137b, 137c: vent baffle (baffle)
138a, 138b, 138c: hole baffles
139: through hole 140: outlet
150: separation unit 151-154: 1-4 baffle
160: vibrating fan 170: blocking wall
180: diaphragm α, β: internal baffle angle
X: Blocking plate separation Pd: Fine powder material

Claims (8)

In the filling device for receiving the fine powder material for secondary batteries through a transfer pipe from the secondary battery fine powder material supply device and filling it in a fixed amount,
a filling hopper that receives the fine powder material transferred from the transfer pipe through the upper portion and has a discharge port at the lower portion;
a nozzle connected to the transfer pipe and mounted on the filling hopper to spray the fine powder material transferred from the transfer pipe to the filling hopper;
At least one vent hole provided on an upper side of the filling hopper to connect an exhaust pipe for discharging the air inside the filling hopper to the outside;
When the air inside the filling hopper is discharged through the ventilation hole, the fine powder material sprayed from the nozzle to the filling hopper and falling into the discharge hole is prevented from flowing into the ventilation hole together with the discharged air. Doedoe installed inside of the vent, located between the nozzle and the vent, and formed to extend a certain length from the top to the bottom inside the filling hopper to directly block the fine powder material sprayed at the maximum spraying angle of the nozzle. ;
It is formed to extend obliquely from one side of the blocking wall to the upper part of the discharge port, so that the fine powder material sprayed from the nozzle and collided with the blocking wall does not flow in with the air discharged through the ventilation port. a diaphragm for allowing the powder material to flow in a direction opposite to the flow of air discharged through the vent; and
A first baffle that is formed obliquely downward from the inner side wall of the filling hopper and blocks the fine powder material moving with the air by changing the flow of air flowing into the vent along the lower side of the filling hopper and , is formed obliquely downward toward the first baffle at a position higher than the first baffle from the blocking wall, and by changing the flow of air flowing into the ventilation hole along the lower surface of the first baffle, A second baffle that blocks the fine powder material and the filling hopper inner sidewall are obliquely protruded downward toward the second baffle at a position higher than the second baffle, and flow to the ventilation hole along the lower surface of the second baffle A third baffle that blocks the fine powder material moving together with the air by changing the flow of air, and the third baffle is formed to protrude obliquely downward from the blocking wall toward the third baffle at a position higher than the third baffle, Fine powder for a secondary battery, characterized in that it comprises; Material quantitative filling device.
The method of claim 1, wherein the ventilation hole,
Quantitative filling apparatus for fine powder material for secondary batteries, characterized in that each provided on the left and right sides of the nozzle.
According to claim 1, wherein the filling hopper,
The fine powder material for secondary battery further comprising a; a vibrating fan for dropping the fine powder material attached to the upper and lower surfaces of the first to fourth baffles constituting the separation unit using at least one of vibration and wind. Quantitative filling device.
According to claim 1, wherein the nozzle,
A quantitative filling device for fine powder material for secondary batteries, characterized in that a radial vortex prevention groove is formed in the longitudinal direction on the outer side of the inner hollow.
The method of claim 1, wherein the ventilation hole,
A first ventilation gradient baffle that is formed obliquely downward from one inner wall and blocks the fine powder material moving with the air by changing the flow of air flowing from the filling hopper to the ventilation hole;
From the other side wall facing the inner one side wall, it is formed obliquely downward toward the first ventilation gradient baffle at a position higher than the first ventilation gradient baffle, and the air flowing to the upper portion of the ventilation hole along the lower surface of the first ventilation gradient baffle. A second ventilation gradient baffle that blocks the fine powder material moving with the air by changing the flow, and
By changing the flow of air that is formed obliquely downward from the inner one side wall to the second ventilation gradient baffle at a position higher than the second ventilation gradient baffle, and flows to the upper portion of the ventilation hole along the lower surface of the second ventilation gradient baffle, Quantitative filling device for fine powder material for secondary batteries, characterized in that it has a third ventilation gradient baffle that blocks the fine powder material moving with air.
The method of claim 5, wherein the ventilation hole,
From the other side wall facing the inner one side wall, it is obliquely protruded downward toward the third ventilation gradient baffle at a position higher than the third ventilation gradient baffle, and the air flowing to the upper portion of the ventilation hole along the lower surface of the third ventilation gradient baffle. A quantitative filling device for fine powder material for secondary batteries, characterized in that it further comprises a plurality of hole baffles for blocking the fine powder material moving with air by changing some of the flow and passing some through holes formed in plurality.
The method of claim 1, wherein the ventilation hole,
a screw having a plurality of blades rotating in a direction opposite to the flow of air flowing from the filling hopper to the exhaust pipe; and
A motor mounted on the upper end of the ventilation hole to rotate the screw through a rotation shaft connected to the screw,
A quantitative filling device for fine powder material for secondary batteries, characterized in that the fine powder material contained in the air flowing from the filling hopper to the exhaust pipe is dropped into the filling hopper.
The method of claim 1, wherein the ventilation hole,
A plurality of electromagnets are mounted on the outer periphery, power is supplied from the power supply, the metallic fine powder material contained in the air flowing from the filling hopper to the exhaust pipe is separated and collected on the inner wall, and then the power is supplied from the power supply unit Quantitative filling device for fine powder material for secondary batteries, characterized in that by blocking the metal fine powder material collected on the inner wall to fall into the filling hopper.

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