KR20230079905A - Supply apparatus of active meterial - Google Patents

Abstract

The disclosed invention is a hopper in which the active material is stored; a first mixer and a second mixer disposed at a predetermined distance from the bottom of the hopper to both sides and mixing the active material supplied from the hopper; A Y-shaped pipe connecting the hopper, the first mixer, and the second mixer, a main pipe directly connected to the hopper, and a first branch pipe and a second branch pipe branched from the main pipe and connected to the first mixer and the second mixer, respectively. Including, the first branch pipe and the second branch pipe are connecting pipes forming an inclination with respect to the first mixer and the second mixer, respectively; and a 3-way valve that is disposed on the interface between the main pipe and the first and second branch pipes and selectively communicates the active material introduced into the main pipe with only one of the first branch pipe and the second branch pipe. includes

Description

Active material supply device {SUPPLY APPARATUS OF ACTIVE METERIAL}

The present invention relates to an active material supply device.

More specifically, the present invention relates to an active material supply device capable of improving the operation rate of a hopper compared to the operating time of the mixer by arranging a plurality of mixers into which the active material is injected in comparison to the hopper for supplying the active material in the active material supply device.

In addition, the present invention relates to an active material supplying device capable of improving the overall operation rate of the active material supplying device by selectively and alternately supplying the active material to a plurality of mixers through one hopper.

Recently, secondary batteries capable of charging and discharging have been widely used as energy sources for wireless mobile devices.

In addition, secondary batteries are electric vehicles and hybrid electric vehicles, which are being proposed as a solution to air pollution from conventional gasoline vehicles and diesel vehicles that use fossil fuels, as well as portable devices such as cell phones, laptops, and camcorders. It is also attracting attention as an energy source.

Therefore, the types of applications using secondary batteries are diversifying due to the advantages of secondary batteries, and it is expected that secondary batteries will be applied to more fields and products than now.

These secondary batteries are classified into lithium ion batteries, lithium ion polymer batteries, lithium polymer batteries, etc. according to the composition of electrodes and electrolytes, and the use of lithium ion polymer batteries, which are less likely to leak electrolyte and are easy to manufacture, is increasing.

In general, secondary batteries are classified into cylindrical batteries in which the electrode assembly is embedded in a cylindrical or prismatic metal can, and pouch-type batteries in which the prismatic battery and electrode assembly are embedded in a pouch-type case of an aluminum laminate sheet, depending on the shape of the battery case. .

In addition, the electrode assembly built into the battery case is a power generating device capable of charging and discharging with a structure of a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. It is classified into a rolled jelly roll form and a stack form in which a plurality of positive and negative electrodes formed in a predetermined size are sequentially stacked in a state in which a separator is interposed.

Here, the electrode of the secondary battery performs a coating process of applying an active material to the electrode, a drying process of drying the electrode coated with the active material, and a notching process.

Among the electrode manufacturing processes, the active material manufacturing process uses an active material supply device by mixing a binder and a solvent with the active material.

At this time, raw materials such as active materials are supplied to the mixer through a hopper, and raw materials such as active materials supplied to the mixer are uniformly mixed in the mixer and then used.

As shown in FIG. 1, the conventional active material supply device 100 includes a mixer 120 and a hopper 110 for mixing a hopper 110 in which an active material is stored and an active material input through the hopper 110 and a pipe 130 connecting the mixer 120.

Here, the hopper for inputting the active material and the mixer for mixing the active material are connected one-to-one, and the operation rate of the hopper compared to the operating time of mixing the active material through the mixer after supplying the active material from the hopper to the mixer remains less than 30%, so equipment operation The problem was that this was inefficient.

That is, since the hopper is operated only when the active material is supplied to the mixer, and the hopper is not operated outside of the time when the active material is supplied to the mixer, that is, during the time when the mixer is in operation, the overall operation rate of the active material supply device is reduced.

In this way, since the hopper is idle during the operating time of the mixer, there is a problem that the mixing process is generally inefficient.

Therefore, there is a demand for an active material supply device capable of improving the operation rate of a hopper compared to a mixer for mixing active materials, thereby reducing investment costs.

Republic of Korea Patent No. 10-1462028

The present invention was made to solve the above problems, and the active material supply that can improve the operation rate of the hopper compared to the operating time of the mixer by arranging a plurality of mixers into which the active material is injected compared to the hopper for supplying the active material in the active material supply device. It aims to provide a device.

In addition, an object of the present invention is to provide an active material supply device capable of selectively and alternately supplying an active material to a plurality of mixers through one hopper to improve the operation rate of the active material input device and to secure the flowability of the active material.

In order to realize the above object, the present invention is a hopper in which an active material is stored; a first mixer and a second mixer disposed at a predetermined distance from the bottom of the hopper to both sides and mixing the active material supplied from the hopper; A Y-shaped pipe connecting the hopper, the first mixer, and the second mixer, a main pipe directly connected to the hopper, and a first branch pipe and a second branch pipe branched from the main pipe and connected to the first mixer and the second mixer, respectively. Including, the first branch pipe and the second branch pipe are connecting pipes forming an inclination with respect to the first mixer and the second mixer, respectively; and a 3-way valve that is disposed on the interface between the main pipe and the first and second branch pipes and selectively communicates the active material introduced into the main pipe with only one of the first branch pipe and the second branch pipe. It is characterized in that it includes.

As an example, an angle formed by the first branch pipe and the second branch pipe with respect to the first mixer and the second mixer is 30° or less with respect to a vertical line.

As an example, the 3-way valve is disposed on the interface between the main pipe and the first and second branch pipes, and is rotated to selectively open and close the inlets of the first and second branch pipes, and damping valves. It includes a damper cylinder that rotates.

As a specific example, the damping valve shuttles between a first position of opening the first branch and simultaneously closing the second branch and a second position of closing the first branch and simultaneously opening the second branch. .

As another specific example, the rod of the damper cylinder is connected by a link to an arm extending from the center of the rotation axis of the damping valve, and the damper cylinder responds to the change in the direction of the force acting on the arm according to the extension and contraction of the rod. It is supported so that it can swing.

As another example, the 3-way valve is rotatably in close contact with the inner surface of the main pipe, and a rotating plate having a discharge hole formed on either semicircular surface, and is closely fixed to the inner surface of the main pipe and attached to the rotating plate. A fixed plate provided with a partition wall that provides a rotation center for the center of rotation, has a pair of discharge holes corresponding to the discharge holes on both semicircular surfaces, and isolates the inlets of the first branch pipe and the second branch pipe from communicating, and It includes a motor that rotates the rotary plate.

As a specific example, an annular seating surface for guiding the rotation of the rotating plate and maintaining a sealed state for the active material is formed on the contact surface between the main pipe and the rotating plate.

As another specific example, the discharge hole and the discharge hole each have a semicircular shape.

As a specific example, a ring gear is provided on the edge of the rotating plate, and the motor includes a pinion gear meshed with the ring gear.

As another specific example, according to the rotational position of the rotary plate, all of the inlets of the first branch pipe are opened, all of the inlets of the second branch pipe are open, or the inlets of the first branch pipe and the second branch pipe are opened, respectively. Partially open.

As a specific example, an angle sensor for detecting the rotational angle of the rotating plate is provided.

As another example, an air purge device for injecting air toward the 3-way valve is further provided inside the main pipe.

According to the present invention, in the active material supply device, a plurality of mixers into which the active material is injected are arranged in comparison to the hopper for supplying the active material, so that the operation rate of the hopper compared to the operating time of the mixer can be improved.

In addition, since the active material can be selectively and alternately supplied to a plurality of mixers through one hopper to improve the operation rate of the active material input device and to secure the flowability of the active material, the active material supply device can be efficiently operated.

1 is a view schematically showing an active material supply device according to the prior art.
2 is a diagram schematically showing an active material supply device according to the present invention.
3 is a cross-sectional view schematically showing a 3-way valve included in an embodiment of an active material supply device according to the present invention.
4 to 6 are views schematically showing the operation process of the 3-way valve according to an embodiment of the active material supply device according to the present invention.
7 is a view schematically showing an air purge installed in a 3-way valve in one embodiment of an active material supply device according to the present invention.
8 is a view schematically showing a 3-way valve according to another embodiment of the active material supply device according to the present invention.
9 is a view schematically showing a rotating plate and a fixing plate of a 3-way valve according to another embodiment of an active material supply device according to the present invention.
10 is a view schematically showing an air purge installed in a 3-way valve according to another embodiment of an active material supply device according to the present invention.

Hereinafter, the present invention will be described in detail. Prior to this, terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventor appropriately uses the concept of terms in order to describe his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical spirit of the present invention based on the principle that it can be defined in the following way.

Terms such as "include" or "have" used throughout the specification of the present invention are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or other features, numbers, steps, operations, components, parts, or combinations thereof, are not precluded from being excluded in advance.

In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where it is "directly on" the other part, but also the case where another part is present in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is said to be "under" another part, this includes not only the case where it is "directly under" the other part, but also the case where there is another part in between. In addition, in the specification of the present invention, being disposed "on" may include the case of being disposed at the bottom as well as at the top.

In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where it is "directly on" the other part, but also the case where another part is present in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is said to be "under" another part, this includes not only the case where it is "directly under" the other part, but also the case where there is another part in between. In addition, in the present application, being disposed "on" may include the case of being disposed at the bottom as well as at the top.

(First Embodiment)

2 is a diagram schematically showing an active material supply device according to the present invention. 3 is a cross-sectional view schematically showing a 3-way valve included in an embodiment of an active material supply device according to the present invention. 4 to 6 are views schematically showing the operation process of the 3-way valve according to an embodiment of the active material supply device according to the present invention. 7 is a view schematically showing an air purge installed in a 3-way valve in one embodiment of an active material supply device according to the present invention.

As shown in FIG. 2, the active material supply device 1 according to the present invention includes a hopper 10 in which the active material is stored and a first mixer 30a provided at the bottom of the hopper 10 to mix the active material, and The second mixer 30b and the hopper 10, the connection pipe 50 connecting the first mixer 30a and the second mixer 30b, and a 3-way valve installed in the connection pipe 50 (70).

The hopper 10 is formed in the shape of an inverted truncated cone whose diameter decreases from top to bottom, and an active material is stored therein.

The first mixer 30a and the second mixer 30b are disposed spaced apart from each other by a predetermined distance from the bottom of the hopper 10 to both sides, and mix the active material supplied from the hopper 10 .

To this end, the first mixer 30a and the second mixer 30b may further include a stirrer (not shown) for mixing the active material and a drive motor (not shown) for driving the stirrer.

The connection pipe 50 is for connecting the hopper 10 and the first mixer 30a and the second mixer 30b, and is formed as a Y-shaped pipe.

Specifically, the connection pipe 50 is branched from the main pipe 51 directly connected to the lower end of the hopper 10 and the main pipe 51 to form the first mixer 30a and the second mixer 30b. It includes a first branch pipe (53a) and a second branch pipe (53b) connected to each.

At this time, the first branch pipe 53a and the second branch pipe 53b are inclined with respect to the first mixer 30a and the second mixer 30b, respectively.

That is, the first branch pipe 53a and the second branch pipe 53b branched from the main pipe 51 are connected to the side surfaces of the first mixer 30a and the second mixer 30b. This is because other facilities are installed above the first mixer 30a and the second mixer 30b, so that the first branch pipe 53a and the second branch pipe 53b are connected to the first mixer 30a and the second mixer 30b. 2 communicates with the side of the mixer 30b.

In this way, the first branch pipe 53a and the second branch pipe 53b are connected to the side surfaces of the first mixer 30a and the second mixer 30b. Since it is difficult for the pipe 53b to be placed vertically, it is preferable that the first branch pipe 53a and the second branch pipe 53b are inclined with respect to the first mixer 30a and the second mixer 30b, respectively. desirable.

Here, the inclination angle of the first branch pipe 53a and the second branch pipe 53b connecting the hopper 10 and the first mixer 30a and the second mixer 30b is 30° or more relative to the vertical line. In this case, since it is difficult for the powdery active material stored in the hopper 10 to naturally fall and be supplied to the first mixer 30a and the second mixer 30b by its own weight, the first branch pipe 53a and the second mixer 30b The second branch pipe 53b needs to form an appropriate inclination angle based on a vertical line with respect to the first mixer 30a and the second mixer 30b.

Therefore, it is preferable that the first branch pipe 53a and the second branch pipe 53b are disposed at an inclination angle of 30° or less with respect to the vertical line in consideration of the dead weight of the active material.

More preferably, the first branch pipe 53a and the second branch pipe 53b are disposed at an inclination angle of 20° to 25° with respect to the vertical line.

The 3-way valve 70 is disposed on the interface between the main pipe 51 and the first branch pipe 53a and the second branch pipe 53b, and the active material injected into the main pipe 51 is transferred to the first pipe 51. Only one of the branch pipe 53a and the second branch pipe 53b is selectively communicated.

With the structure as described above, the active material stored in the hopper 10 by the operation of the 3-way valve 70 selectively passes through the first branch pipe 53a and the second branch pipe 53b to the first mixer. It may be supplied to at least one of (30a) and the second mixer (30b).

Here, in the 3-way valve 70, as shown in FIG. 3, the damping valve 71 is disposed at the interface between the main pipe 51 and the first and second branch pipes 53a and 53b The damping valve 71 is rotated to selectively open and close the inlets of the first branch pipe 53a and the second branch pipe 53b.

Also, the damper cylinder 73 is connected to the damping valve 71 to rotate the damping valve 71 .

The damping valve 71 has a first position in which the first branch pipe 53a is opened and the second branch pipe 53b is closed at the same time, and the first branch pipe 53a is closed and the second branch pipe 53a is closed. It shuttles between the second positions that open the trachea 53b.

That is, as shown in FIGS. 4 to 6, the damping valve 71 is rotated toward the second branch pipe 53b to close the second branch pipe 53b and simultaneously close the first branch pipe 53a. A first position for opening and a second position in which the damping valve 71 is rotated toward the first branch pipe 53a to close the first branch pipe 53a and simultaneously open the second branch pipe 53b The first branch pipe 53a or the second branch pipe 53b is selectively opened or closed while reciprocating therebetween.

If the active material is simultaneously supplied to the first mixer 30a through the first branch pipe 53a and simultaneously supplied to the second mixer 30b through the second branch pipe 53b, the main pipe 51 ) and the first branch pipe 53a and the second branch pipe 53b, the damping valve 71 disposed at the boundary is vertically positioned to simultaneously operate the first branch pipe 53a and the second branch pipe 53b. might be open.

On the other hand, the rod 73a of the damper cylinder 73 is connected to the arm 71a extending from the center of the rotation shaft 71b of the damping valve 71 by a link 73b, and the damper cylinder 73 ) is supported so as to perform an oscillating motion in response to a change in the direction of the force acting on the arm 71a according to the extension and contraction of the rod 73a.

That is, the rod 73a of the damper cylinder 73 extends around the rotation axis 71b of the damping valve 71 and is linked to the arm 71a exposed to the outside of the 3-Way valve 70 (73b), the rod 73a of the damper cylinder 73 changes the position of the arm 71a connected to the link 73b by a hydraulic or electrical signal, and thereby the damping valve 71 It rotates toward the first branch pipe 53a or the second branch pipe 53b around the pivot shaft 71b.

With the structure as described above, the rod 73a of the damper cylinder 73 connected by the link 73b to the arm 71a exposed to the outside of the 3-way valve 70 operates, 71a) is rotated to change the position, and the damping valve 71 in the 3-Way valve 70 is rotated about the rotation axis 71b to correspond to the direction of the force acting on the arm 71a. It is made to open and close the first branch pipe (53a) or the second branch pipe (53b).

Meanwhile, an air purge device 90 for injecting air toward the 3-way valve 70 is further provided inside the main pipe 51 .

That is, as shown in FIG. 7, inside the main pipe 51, the first branch pipe 53a and the second branch pipe 53b of the connection pipe, the 3-way valve 70, and the 3 An air purge device 90 is provided inside the main pipe 51 for injecting air to remove the active material remaining in the damping valve 71 installed in the -Way valve 70.

As a modified example, a plurality of air outlets (not shown) for discharging air from the air purge device 90 are branched to simultaneously or individually spray air to various locations inside the 3-way valve 70. to remove the remaining active material, or the air outlet for discharging air in the air purge device 90 is made to rotate so that air is blown in the circumferential direction on the inner surface of the 3-Way valve 70 and the remaining active material It is also possible to remove, but is not limited thereto.

Hereinafter, an operation process of an active material supply device according to an embodiment of the present invention will be briefly described with reference to FIGS. 4 to 6 .

The active material stored in the hopper 10 is sequentially supplied to the first mixer 30a and then the second mixer 30b through the 3-way valve 70 according to an embodiment of the present invention, or the second mixer 30b ) and then can be sequentially supplied to the first mixer 30a.

To this end, when the active material stored in the hopper 10 is first supplied to the first mixer 30a and then sequentially supplied to the second mixer 30b, the damper cylinder 73 of the 3-way valve 70 is operated to rotate the damping valve 71 to the second branch pipe 53b communicating with the second mixer 30b.

In this way, after closing the second branch pipe 53b by rotating the damping valve 71, the active material stored in the hopper 10 is passed through the main pipe 51 in a state in which the first branch pipe 53a is opened. The active material injected into the first branch pipe 53a is supplied to the first mixer 30a.

As described above, after supplying the active material to the first mixer 30a, the first mixer 30a is driven to mix the active material, and at this time, the damping valve 71 is rotated to communicate with the first mixer 30a After the first branch pipe 53a is closed, the active material stored in the hopper 10 is supplied to the second mixer 30b through the second branch pipe 53b opened.

Meanwhile, when the above process is performed in reverse, the active material may be sequentially supplied to the second mixer 30b and the first mixer 30a through the 3-way valve 70 .

In this way, the active material is supplied to the first mixer 30a or the second mixer 30b through the active material supply device 1 according to the present invention, and the supplied active material is supplied to the first mixer 30a or the second mixer 30b. In the state of being mixed through, by supplying the active material to the second mixer 30b or the first mixer 30a again, the operation rate of the hopper 10 compared to the mixer is improved and the idle state of the hopper 10 can be reduced. there is.

As a modified example, the number of mixers provided in the active material supply device 1 is two or more, but it is possible to improve the operation rate of the hopper 10 by changing the structure of the valve, and various other changes It is feasible

(Second Embodiment)

8 is a view schematically showing a 3-way valve according to another embodiment of the active material supply device according to the present invention. 9 is a view schematically showing a rotating plate and a fixing plate of a 3-way valve according to another embodiment of an active material supply device according to the present invention. 10 is a view schematically showing an air purge installed in a 3-way valve according to another embodiment of an active material supply device according to the present invention.

As shown in FIGS. 8 and 9, the 3-way valve 70' according to the present embodiment includes a rotating plate 75 provided on the inner surface of the main pipe 51 and rotatably installed, and the rotating plate It includes a fixing plate 76 and a motor 77 provided below the 75.

The rotating plate 75 is rotatably attached to the inner surface of the main pipe 51, and a discharge hole 75a is formed through a semicircular surface on either side of the central portion.

The fixing plate 76 is tightly fixed to the inner surface of the main pipe 51, provides a center of rotation for the rotating plate 75, and has a center on both semicircular surfaces corresponding to the discharge holes 75a. A pair of shaped discharge holes 76a and 76b are formed through.

In addition, the first branch pipe 53a and the second branch pipe 53b are installed at the center of the lower surface of the fixing plate 76 so that the inlets of the first branch pipe 53a and the second branch pipe 53b do not communicate. A barrier 76c for isolation and partitioning is formed vertically.

The motor 77 is for rotating the rotating plate 75, the motor 77 is provided with a pinion gear 77a, a ring gear 75b is provided on the edge of the rotating plate 75, and the motor When the pinion gear 77a of 77 is engaged with the ring gear 75b of the rotary plate 75, the rotary plate 75 is rotated by driving the motor 77.

With the structure as described above, the rotary plate 75 is rotated by the driving of the motor 77, and the discharge hole 75a penetrated through the rotary plate 75 is discharged through the fixed plate 76. By positioning the balls 76a and 76b to overlap with any one of the discharge holes 76a and 76b, one discharge hole 76a and 76b of the discharge holes 76a and 76b is opened, and the other discharge hole 76b, 76a) is closed.

Here, the discharge hole 75a and the discharge holes 76a and 76b may each be formed in a semicircular shape to secure a discharge area of the active material as large as possible.

In one embodiment of the present invention, the discharge hole 75a and the discharge holes 76a and 76b are formed in a semicircular shape, but the discharge hole 75a and the discharge holes 76a and 76b are circular or elliptical. It is also possible to form, it is not limited to this, and other various changes are possible.

Meanwhile, an annular seating surface 52 is formed on the contact surface between the main pipe 51 and the rotating plate 75 to guide rotation of the rotating plate 75 and maintain a sealed state for the active material.

Here, the 3-way valve 70' according to the present embodiment opens all the inlets of the first branch pipe 53a or closes the second branch pipe 53b according to the rotational position of the rotary plate 75. The inlets may be entirely opened, or the inlets of the first branch pipe 53a and the second branch pipe 53b may be partially opened.

That is, by rotating the rotary plate 75, the discharge hole 75a formed through the rotary plate 75 is disposed on the side of the first branch pipe 53a among the discharge holes 76a and 76b formed through the fixed plate 76. The discharge hole 76a located on the side of the first branch pipe 53a by overlapping the discharge hole 76a located there is opened, and the discharge hole 76b located on the side of the second branch pipe 53b is closed. By doing so, the first branch pipe 53a may open all of the inlets.

Then, by rotating the rotating plate 75, the discharge hole 75a formed through the rotating plate 75 is disposed on the side of the second branch pipe 53b among the discharge holes 76a and 76b formed through the fixed plate 76. The discharge hole 76b located on the side of the second branch pipe 53b by overlapping with the discharge hole 76b located is open, and the discharge hole 76a located on the side of the first branch pipe 53a is closed. It is possible to open all the inlets of the second branch pipe (53b).

On the other hand, by rotating the rotating plate 75, a portion of the discharge hole 75a formed in the rotary plate 75 is partially overlapped with the discharge hole 76a located on the side of the first branch pipe 53a, The remaining part of the discharge hole 75a partially overlaps the other discharge hole 76b located on the side of the second branch pipe 53b so that the discharge hole 76a on the side of the first branch pipe 53a and the first By partially opening the discharge hole 76b on the side of the second branch pipe 53b, the inlets of the first branch pipe 53a and the second branch pipe 53b may be partially opened.

As described above, the first branch pipe 53a or the second branch pipe 53b may be fully opened or the first branch pipe 53a and the second branch pipe 53b may be opened according to the rotational position of the rotating plate 75. In order to partially open the , an angle sensor (not shown) for detecting a rotation angle may be further provided on the rotating plate 75 .

On the other hand, as shown in FIG. 10, the 3-Way valve 70' according to the present embodiment is directed toward the main pipe 51 of the connecting pipe 50 to which the 3-Way valve 70' is applied. An air purge device 90 for spraying air may be further provided. Since the configuration and modifications of the air purge device 90 overlap with those described in the first embodiment, a detailed description of the air purge device 90 is omitted in the second embodiment.

In the above, the present invention has been shown and described in relation to specific embodiments, but it is common knowledge in the art that various modifications and changes are possible within the limit that does not depart from the spirit and scope of the invention shown in the appended claims. Anyone who has it will be able to easily understand.

1: Active material supply device
10 : Hopper
30a: first mixer
30b: second mixer
50: connection piping
51: main piping
52: seating surface
53a: first branch pipe
53b: second branch pipe
70, 70' : 3-Way valve
71: damping valve
71a cancer
71b: rotation axis
73: damper cylinder
73a: load
73b: link
75: rotating plate
71a: discharge hole
75b: ring gear
76: fixed plate
76a, 76b: discharge hole
76c: bulkhead
77: motor
77a: pinion gear
90: air purge device

Claims (12)

a hopper in which an active material is stored;
a first mixer and a second mixer disposed at a predetermined distance from the bottom of the hopper to both sides and mixing the active material supplied from the hopper;
A Y-shaped pipe connecting the hopper with the first mixer and the second mixer, a main pipe directly connected to the hopper, and a first branch pipe branched off from the main pipe and connected to the first mixer and the second mixer, respectively. and a second branch pipe, wherein the first branch pipe and the second branch pipe form an inclined connection pipe with respect to the first mixer and the second mixer, respectively; and
a 3-way valve disposed on the interface between the main pipe and the first and second branch pipes and selectively communicating the active material introduced into the main pipe with only one of the first branch pipe and the second branch pipe;
Active material supply device comprising a.
According to claim 1,
The active material supply device, characterized in that the angle formed by the first branch pipe and the second branch pipe with respect to the first mixer and the second mixer is 30 ° or less based on a vertical line.
According to claim 1,
The 3-way valve,
A damping valve disposed on the interface between the main pipe and the first and second branch pipes and rotated to selectively open and close the inlets of the first and second branch pipes, and a damper cylinder for rotating the damping valve. Active material supply device, characterized in that.
According to claim 3,
The damping valve,
Characterized in that it reciprocates between a first position in which the first branch pipe is opened and the second branch pipe is closed at the same time, and a second position in which the second branch pipe is opened while the first branch pipe is closed. Active material supply device
According to claim 4,
The rod of the damper cylinder is connected by a link to an arm extending from the center of the rotation axis of the damping valve,
The active material supply device, characterized in that the damper cylinder is supported so that it can swing in response to the change in the direction of the force acting on the arm according to the extension and contraction of the rod.
According to claim 1,
The 3-way valve,
A rotating plate rotatably adhered to the inner surface of the main pipe and having a discharge hole formed on one of the semicircular surfaces, and closely fixed to the inner surface of the main pipe to provide a center of rotation for the rotating plate, and both semicircular plates A fixed plate having a pair of discharge holes corresponding to the discharge holes on each surface and having a partition wall separating the inlets of the first branch pipe and the second branch pipe from communicating, and a motor for rotating the rotary plate Active material supply device characterized in that it comprises.
According to claim 6,
An active material supply device, characterized in that an annular seating surface for maintaining a sealed state for the active material while guiding the rotation of the rotary plate is formed on the contact surface between the main pipe and the rotating plate.
According to claim 6,
Active material supply device, characterized in that the discharge hole and the discharge hole each have a semicircular shape.
According to claim 6,
A ring gear is provided on the rim of the rotating plate,
The active material supply device, characterized in that the motor comprises a pinion gear meshed with the ring gear.
According to claim 6,
Depending on the rotational position of the rotating plate,
Open all the inlets of the first branch pipe,
Or open all the inlets of the second branch pipe,
Alternatively, the active material supply device characterized in that the inlets of the first branch pipe and the second branch pipe can be partially opened.
According to claim 10,
Active material supply device, characterized in that provided with each sensor for detecting the rotation angle of the rotating plate.
According to claim 1,
An active material supply device, characterized in that an air purge device for injecting air toward the 3-way valve is further provided inside the main pipe.

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