Slurry recovery device and coating equipment

Abstract

The utility model provides a slurry recovery device and coating equipment, and the slurry recovery device comprises a diverter valve which is provided with an input port, a first discharge port and a second discharge port, and when the diverter valve is in a first state, the first discharge port is communicated with the input port to form a first liquid conveying channel; the recycling barrel is arranged at the discharging end of the second discharging opening, the feeding opening of the recycling barrel is communicated with the second discharging opening, the flow dividing valve is in the second state, the second discharging opening is communicated with the input opening to form a second liquid conveying channel, and slurry in the slurry pipeline flows into the recycling barrel along the second liquid conveying channel. The detection device is arranged on the slurry pipeline and located on the input port side of the flow dividing valve, the detection device is used for detecting the weight or pressure of the slurry in the slurry pipeline, and when the weight or pressure of the slurry in the slurry pipeline reaches a preset threshold value, the flow dividing valve is adjusted to be in a second state. The slurry recovery device can realize efficient and sufficient recovery of slurry, reliably avoids the problem of blockage of a slurry pipeline, and improves the production efficiency.

Description

Technical Field

[0001] The utility model generally relates to the technical field of battery processing, and in particular to a slurry recovery device and coating equipment. Background Art

[0002] During the lithium-ion battery production and transportation process from the mixing of positive and negative active materials to coating, the slurry fills various pipelines. After the same batch of production is completed, the slurry in the pipeline cannot be effectively recycled. The longer the pipeline, the more slurry is lost, resulting in production waste. In related technologies, pipeline ball pushing technology is used to drive small balls under pneumatic pressure to move and discharge the slurry in the pipeline. However, due to the height difference and segmentation of pipelines in actual production conditions, the long pipeline distance and insufficient air pressure to push the small balls, the small balls or slurry may get stuck inside the pipeline, causing pipeline blockage and the inability to discharge the slurry in time. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a slurry recovery device and coating equipment that can adjust the state of the diverter valve in real time according to the weight or pressure of the slurry in the slurry pipeline, so that the slurry can be discharged to the recovery barrel in time, thereby achieving efficient and full recovery of the slurry, and reliably avoiding the problem of slurry pipeline blockage, thereby improving production efficiency.

[0004] In a first aspect, the present invention provides a slurry recovery device, comprising:

[0005] A diverter valve is installed on the slurry pipeline. The diverter valve has at least an input port, a first discharge port, and a second discharge port. The diverter valve includes a first state and a second state. When the diverter valve is in the first state, the first discharge port is connected to the input port to form a first liquid infusion passage. The slurry in the slurry pipeline flows along the first liquid infusion passage.

[0006] A recovery barrel is provided at the discharge end of the second discharge outlet, and the feed port of the recovery barrel is connected to the second discharge outlet. The diverter valve is in the second state, the second discharge outlet is connected to the feed port to form a second liquid infusion passage, and the slurry in the slurry pipeline flows along the second liquid infusion passage to the interior of the recovery barrel;

[0007] The detection device is arranged on the slurry pipeline and is at least located on the input port side of the diverter valve. The detection device is used to detect the weight or pressure of the slurry inside the slurry pipeline. When the weight or pressure of the slurry inside the slurry pipeline reaches a predetermined threshold, the diverter valve is adjusted to the second state.

[0008] As an optional solution, the diverter valves include at least two, and the at least two diverter valves are spaced apart along the length direction of the slurry pipeline; correspondingly, the recovery barrels include at least two, and each recovery barrel is arranged at the discharge end of the second discharge outlet of each diverter valve.

[0009] As an optional solution, the slurry recovery device also includes:

[0010] Pneumatic component, the pneumatic component is arranged on the input port side of the diverter valve, the pneumatic component includes an inflatable part and a propulsion part, the propulsion part is arranged inside the slurry pipeline, the inflatable part is connected to the slurry pipeline, the inflatable part drives the propulsion part to move, and the propulsion part pushes the slurry to flow.

[0011] As an optional solution, the slurry recovery device also includes:

[0012] A vacuum pump is provided, and an exhaust port is provided on the recovery barrel, and the vacuum pump is communicated with the exhaust port.

[0013] As an optional solution, the slurry recovery device includes a feed pipeline, one end of which is connected to the second discharge outlet, and the other end of which is connected to the feed port of the recovery barrel, and the feed pipeline and the feed port of the recovery barrel are detachably connected.

[0014] As an optional solution, a first fitting part is provided at the end of the material delivery pipeline, and a second fitting part is provided on the recovery barrel. The end of the material delivery pipeline is located inside the feed port of the recovery barrel, the first fitting part and the second fitting part cooperate, and the end of the material delivery pipeline is connected to the feed port of the recovery barrel.

[0015] As an optional solution, the first matching part includes an external thread opened on the outer wall of the material conveying pipeline, and the second matching part includes an internal thread opened on the inner wall of the material feed port of the recovery barrel, and the external thread and the internal thread match each other.

[0016] As an optional solution, the diverter valve includes an electromagnetic three-way valve.

[0017] As an optional solution, the slurry recovery device further includes a control system, which is electrically connected to the detection device and the electromagnetic three-way valve respectively;

[0018] The control system is used to control the detection device to perform detection and receive the weight or pressure of the slurry inside the slurry pipeline detected by the detection device;

[0019] The control system is also used to control the electromagnetic three-way valve to be in the first state or the second state according to the weight or pressure of the slurry inside the slurry pipeline.

[0020] In a second aspect, the present invention provides a coating device comprising the slurry recovery device of the first aspect.

[0021] The utility model discloses a slurry recovery device, by arranging a diverter valve on a slurry pipeline, the diverter valve has at least an input port, a first discharge port and a second discharge port, and a recovery bucket is arranged at the discharge end of the second discharge port, so that the input port and the first discharge port form a first feed passage, and the input port and the second discharge port form a second feed passage, the diverter valve has a first state and a second state, in the first state, the slurry flows along the first feed passage, and in the second state, the slurry flows along the second feed passage, the weight or pressure of the slurry inside the slurry pipeline is detected by a detection device, and according to the detected weight or pressure, the diverter valve is adjusted to the second state, so that the second discharge port of the diverter valve is connected, so that the slurry is discharged from the second feed passage to the recovery bucket, so that the state of the diverter valve can be adjusted in real time according to the weight or pressure of the slurry in the slurry pipeline, so that the slurry can be discharged to the recovery bucket in time, thereby realizing efficient and sufficient recovery of the slurry, and reliably avoiding the problem of clogging of the slurry pipeline, thereby improving production efficiency; the slurry recovery device of the utility model realizes efficient recovery of the slurry through the detection device and the diverter valve, has a simple structure, is easy to implement, and does not have the risk of pipeline clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 This is a schematic structural diagram of a slurry recovery device according to an embodiment of the present application;

[0024] Figure 2 This is a structural schematic diagram of a slurry recovery device according to an embodiment of the present application (without a recovery barrel installed);

[0025] Figure 3 This is a structural schematic diagram of a slurry recovery device according to an embodiment of the present application (without a recovery barrel installed);

[0026] Figure 4 for Figure 3 A cross-sectional view of the middle diverter valve in the first state along the AA plane;

[0027] Figure 5 for Figure 3 Cross-sectional view of the AA plane of the middle diverter valve in the second state

[0028] Figure 6 This is a schematic structural diagram of a slurry recovery device according to an embodiment of the present application;

[0029] Figure 7 This is a schematic structural diagram of another slurry recovery device according to an embodiment of the present application;

[0030] Figure 8This is a schematic structural diagram of a coating device according to an embodiment of the present application.

[0031] In the figure,

[0032] 100, coating equipment, 101, coating roller, 110, material trough, 120, homogenizer;

[0033] 10. Diverter valve, 11. Input port, 12. First discharge port, 13. Second discharge port, L1. First infusion channel, L2. Second infusion channel;

[0034] 20. Recovery barrel, 21. Feed port, 22. Exhaust port, 23. Moving wheel, 24. Internal thread;

[0035] 30. Detection devices;

[0036] 40. Material delivery pipeline, 41. External thread;

[0037] 50. Control system. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the embodiments.

[0040] In a first aspect, an embodiment of the present application provides a slurry recovery device, such as Figure 1-6 Shown, including:

[0041] The diverter valve 10 is installed on the slurry pipeline 131. The diverter valve 10 has at least an input port 11, a first discharge port 12 and a second discharge port 13. The diverter valve 10 includes a first state and a second state. Figure 4 and Figure 5 As shown, the diverter valve 10 is in the first state, the first outlet 12 is connected to the inlet 11 to form a first liquid infusion path L1, and the slurry in the slurry pipeline 131 flows along the first liquid infusion path L1;

[0042] The recovery barrel 20 is disposed at the discharge end of the second discharge outlet 13, and the feed port 21 of the recovery barrel 20 is connected to the second discharge outlet 13. The diverter valve 10 is in the second state, and the second discharge outlet 13 is connected to the feed port 11 to form a second liquid infusion passage L2. The slurry in the slurry pipe 131 flows along the second liquid infusion passage L2 into the interior of the recovery barrel 20;

[0043] The detection device 30 is arranged on the slurry pipeline 131 and is located on the input port 11 side of the diverter valve 10. The detection device 30 is used to detect the weight or pressure of the slurry inside the slurry pipeline 131. When the weight or pressure of the slurry inside the slurry pipeline 131 reaches a predetermined threshold, the diverter valve 10 is adjusted to be in the second state.

[0044] It should be noted that the slurry recovery device 130 of the embodiment of the present application can be used alone, and of course can also be adapted to be installed on the coating equipment as a continuation structure of the coating equipment, mainly used to realize the recovery of the slurry; wherein, in the electrode processing process, the slurry is transported along the slurry pipeline 131 to the target workstation, thereby realizing the formation of a coating layer on the current collector, as well as the recovery and processing of the slurry.

[0045] It can be understood that the diverter valve 10 can be any kind of mechanical valve or electromagnetic valve; wherein, the mechanical valve mainly controls the opening, closing and opening degree of the valve through mechanical operation, and the electromagnetic valve mainly controls the opening, closing and opening degree of the valve through the on and off power of the electromagnetic coil; wherein, according to the actual production process conditions, the diverter valve 10 of the embodiment of the present application can have one input port 11, two input ports 11 or more than two input ports 11, and at the same time, the diverter valve 10 has at least a first discharge port 12 and a second discharge port 13, and of course it can also have a third discharge port, a fourth discharge port, etc., as long as it can meet the diversion requirements of the actual production conditions.

[0046] In some embodiments, the diverter valve 10 includes a valve switch and a valve core. The first state of the diverter valve 10 can be the position where the valve switch of the diverter valve 10 rotates the valve core clockwise, and the second state of the diverter valve 10 can be the position where the valve switch of the diverter valve 10 rotates the valve core counterclockwise. In this way, the diverter valve 10 is in the first state, the first discharge port 12 and the input port 11 are connected to form a first infusion path L1, and the diverter valve 10 is in the second state, the second discharge port 13 and the input port 11 are connected to form a second infusion path L2, thereby realizing the change of the flow path of the slurry in the slurry pipeline 131, thereby realizing diversion and facilitating efficient recovery of the slurry; of course, in some other embodiments, the first state of the diverter valve 10 can also be the opening or closing of the valve located at the second discharge port 13. The embodiments of the present application do not make specific limitations on this, and are determined according to the production and processing conditions, as long as the switching between the first infusion path L1 and the second infusion path L2 can be realized.

[0047] Among them, the recovery barrel 20 can be any storage barrel that can accommodate slurry. The recovery barrel 20 is arranged at the discharge end of the second discharge outlet 13, so that the slurry flows along the second infusion path L2 to the inside of the recovery barrel 20. The recovery barrel 20 is used to accommodate and store the slurry discharged from the second discharge outlet 13.

[0048] It can also be understood that the detection device 30 can be any weight sensor, pressure sensor or electronic scale, as long as it can be used to detect the weight or pressure of the slurry on the side of the input port 11 of the diverter valve 10 in the slurry pipeline 131. Among them, the detection device 30 can directly display whether the detected weight or pressure reaches a predetermined threshold value, and the operator manually adjusts the state of the diverter valve 10 according to the displayed weight or pressure value; of course, the detection device 30 can also send the detected weight or pressure to the control system, and the control system controls and adjusts the state of the diverter valve 10 according to whether the received weight or pressure reaches a predetermined threshold value, wherein the predetermined threshold value can be the weight or pressure of the slurry in the slurry pipeline 131 under the condition that the slurry flows normally and is not blocked, which is determined in advance according to actual process requirements; the detection device 30 of the embodiment of the present application can accurately detect the weight or pressure of the slurry in the slurry pipeline 131 in real time, thereby recovering the slurry in time, which is conducive to ensuring efficient recovery of the slurry while avoiding blocking the slurry pipeline 131 and improving production efficiency.

[0049] It should be noted that the detection device 30 can be installed on the input side of the diverter valve 10, and of course, it can also be installed on the discharge side of the diverter valve 10. Installing the detection device 30 on the input side of the diverter valve 10 can quickly detect the weight or pressure of the slurry in the slurry pipe 131 in real time, thereby controlling the state of the diverter valve 10. Installing the detection device 30 on both the input and discharge sides of the diverter valve is conducive to accurately detecting the slurry weight or pressure on both sides of the diverter valve 10, thereby further improving the accuracy of controlling the operation of the diverter valve 10.

[0050] For example, when the slurry pipeline 131 is in an idle state, the weight or pressure value detected by the detection device 30 is 0, and the diverter valve 10 is adjusted to remain in the first state. When there is slurry in the slurry pipeline 131, the weight or pressure detected by the detection device 30 changes, and the slurry is discharged from the first discharge port 12 of the diverter valve 10. When the weight or pressure detected during the detection period increases to a predetermined threshold value, the diverter valve 10 is adjusted to be in the second state. At this time, the second discharge port 13 and the input port 11 are connected, and the slurry flows from the second infusion passage L2 to the inside of the recovery barrel 20 until the weight or pressure detected by the detection device 30 is stably maintained at a certain value below the predetermined threshold value, and then the diverter valve 10 is adjusted to be in the first state. This process is repeated to achieve efficient recovery of the slurry while ensuring that the slurry pipeline 131 is not blocked, thereby improving production efficiency.

[0051] The slurry recovery device 130 of the embodiment of the present application solves the problem in the prior art that the slurry is discharged by pneumatically propelling the small balls, which easily causes pipe blockage and cannot reliably realize slurry recovery. The slurry recovery device 130 of the embodiment of the present application is provided with a diverter valve 10 on the slurry pipeline 131. The diverter valve 10 has at least an input port 11, a first discharge port 12 and a second discharge port 13. The recovery bucket 20 is provided at the discharge end of the second discharge port 13. In this way, the input port 11 and the first discharge port 12 form a first feed passage, and the input port 11 and the second discharge port 13 form a second feed passage. The diverter valve 10 has a first state and a second state. In the first state, the slurry flows along the first liquid transfer passage L1, and in the second state, the slurry flows along the second liquid transfer passage L2. The weight or pressure of the slurry inside the slurry pipeline 131 is detected by the detection device 30. , according to the detected weight or pressure, the diverter valve 10 is adjusted to the second state, so that the second discharge outlet 13 of the diverter valve 10 is connected, so that the slurry is discharged from the second feed passage to the recovery barrel 20. Therefore, the state of the diverter valve 10 can be adjusted in real time according to the slurry weight or pressure in the slurry pipeline 131, so that the slurry can be discharged to the recovery barrel 20 in time, thereby realizing efficient and full recovery of the slurry, and reliably avoiding the problem of blockage of the slurry pipeline 131, thereby improving production efficiency; the slurry recovery device 130 of the utility model realizes efficient recovery of slurry through the detection device 30 and the diverter valve 10, has a simple structure, is easy to implement, and does not have the risk of pipeline blockage.

[0052] As a feasible method, the diverter valve 10 includes at least two, and the at least two diverter valves 10 are spaced apart along the length direction of the slurry pipeline 131; correspondingly, the recovery barrel 20 includes at least two, and each recovery barrel 20 is arranged at the discharge end of the second discharge outlet 13 of each diverter valve 10.

[0053] Among them, there can be two or more diverter valves 10, and correspondingly there can be two or more recovery barrels 20. In the actual production and processing process, the number of diverter valves 10 and the number of recovery barrels 20 can be determined according to the length of the slurry pipe 131. The longer the length of the slurry pipe 131, the more the number of diverter valves 10 and the number of recovery barrels 20 can be increased accordingly. They are arranged at intervals along the length direction of the slurry pipe 131. The slurry pipe 131 is divided into multiple sections by the diverter valve 10, and segmented slurry recovery can be realized, which is beneficial to improving the slurry recovery efficiency and facilitating the cleaning of the slurry pipe 131. At the same time, it can reliably avoid the risk of blockage of the slurry pipe 131.

[0054] In this embodiment, the number of diverter valves 10 and slurry recovery barrels 20 is conducive to achieving segmented slurry recovery, improving slurry recovery efficiency, and facilitating the cleaning of the slurry pipeline 131, while reliably avoiding the risk of blockage of the slurry pipeline 131.

[0055] As an achievable manner, the slurry recovery device 130 further includes:

[0056] The pneumatic component (not shown in the figure) is arranged on the side of the input port 11 of the diverter valve 10. The pneumatic component includes an inflatable component and a propulsion component. The propulsion component is arranged inside the slurry pipe 131. The inflatable component is connected to the slurry pipe 131 and is used to inflate the inside of the slurry pipe 131 to drive the propulsion component to move, and the propulsion component pushes the slurry to move.

[0057] Among them, the inflatable member can be an inert gas storage device, such as but not limited to a nitrogen storage device, and the propulsion member can be but not limited to a piston rod or a small ball in related technologies. Driven by the air pressure of the inflatable member, the propulsion member pushes the slurry to move, increasing the flow speed of the slurry, which is conducive to accelerating the flow of the slurry to the inside of the recovery barrel 20.

[0058] For example, when the diverter valve 10 is in the second state, at the same time, the pneumatic member is controlled to drive the propulsion member to move, and the propulsion member pushes the slurry to move, thereby accelerating the slurry to flow into the recovery barrel 20 and improving the recovery efficiency of the slurry.

[0059] The pneumatic assembly of this embodiment is conducive to applying pressure to the slurry, promoting rapid flow of the slurry, and thus improving the slurry recovery efficiency.

[0060] As an achievable manner, the slurry recovery device 130 further includes:

[0061] A vacuum pump (not shown in the figure) is provided on the recovery barrel 20 , and an exhaust port 22 is provided, and the vacuum pump is communicated with the exhaust port 22 .

[0062] Among them, the exhaust port 22 on the recovery barrel 20 is beneficial to balancing the air pressure inside the recovery barrel 20 and the external atmospheric pressure, so as to avoid the pressure inside the recovery barrel 20 being too high and the slurry being unable to flow into the recovery barrel 20; on the other hand, the exhaust port 22 is connected to the vacuum pump, which is beneficial for the vacuum pump to extract the air from the recovery barrel 20 and generate negative pressure inside the recovery barrel 20, so that under the action of the pressure difference, the slurry is accelerated to flow into the recovery barrel 20, thereby improving the slurry recovery efficiency.

[0063] The vacuum pump in this embodiment is conducive to generating negative pressure inside the recovery barrel 20, thereby increasing the flow rate of the slurry and improving the slurry recovery efficiency.

[0064] In some embodiments, the slurry recovery device 130 includes a feed pipeline 40, one end of which is connected to the second discharge outlet 13, and the other end of the feed pipeline 40 is connected to the feed port 21 of the recovery barrel 20, and the feed pipeline 40 and the feed port 21 of the recovery barrel 20 are detachably connected.

[0065] The material delivery pipeline 40 in this embodiment is conducive to facilitating the connection between the second discharge outlet 13 and the recovery barrel 20. The position of the recovery barrel 20 can be adjusted according to the actual installation position, saving space while reliably realizing the recovery of the slurry; and the detachable connection method is conducive to the transportation of the recovery barrel 20.

[0066] Among them, the material delivery pipeline 40 and the feed port 21 of the recovery barrel 20 can be connected by any detachable connection method. For example, the material delivery pipeline 40 and the recovery barrel 20 can be fastened to each other by snaps and buckles; of course, the material delivery pipeline 40 and the recovery barrel 20 can also be connected by flanges and bolts, which is not specifically limited in this embodiment.

[0067] In some embodiments, a boss can also be provided on the outer wall of the feed pipeline 40, and the boss extends vertically outward from the outer wall of the feed pipeline 40. After the end of the feed pipeline 40 extends into the feed port 21 of the recovery barrel 20, the boss is in tight contact with the end face of the feed port 21 of the recovery barrel 20. As long as a reliable connection is ensured between the feed pipeline 40 and the feed port 21 of the recovery barrel 20, the slurry will not overflow.

[0068] As a feasible method, a first fitting portion is provided at the end of the delivery pipeline 40, and a second fitting portion is provided on the recovery barrel 20. The end of the delivery pipeline 40 is located inside the feed port 21 of the recovery barrel 20, and the first fitting portion and the second fitting portion cooperate, and the end of the delivery pipeline 40 is connected to the feed port 21 of the recovery barrel 20.

[0069] Among them, one of the first matching part and the second matching part can be a snap buckle, and the other is a buckle position; of course, one of the first matching part and the second matching part can also be an external thread 41, and the other is an internal thread 24. The embodiments of the present application do not make specific limitations on this.

[0070] In this embodiment, the first matching portion and the second matching portion cooperate to achieve connection between the feeding pipeline 40 and the feed port 21 of the recovery barrel 20, which is convenient for disassembly and can ensure that the slurry does not overflow.

[0071] In some other embodiments, the first mating portion includes an external thread 41 provided on the outer wall of the feed pipeline, and the second mating portion includes an internal thread 24 provided on the inner wall of the feed port 21 of the recovery barrel 20, and the external thread 41 and the internal thread 24 are mated.

[0072] The structure of this embodiment is simple and easy to process. It does not require any additional components, which is beneficial to reducing production and processing costs. It can also reliably ensure that the material conveying pipeline 40 and the feed port 21 of the recovery channel are detachably connected, facilitating the transportation of the recovery barrel 20.

[0073] In a preferred embodiment, the diverter valve 10 comprises a solenoid three-way valve.

[0074] In this embodiment, the diverter valve 10 adopts an electromagnetic three-way valve, which is conducive to convenient electronic control operation, improves the automatic operability of the entire slurry recovery device 130, liberates manpower, reduces labor costs, and improves production and processing efficiency.

[0075] As a feasible way. Figure 7 As shown, the slurry recovery device 130 further includes a control system 50, which is electrically connected to the detection device 30 and the electromagnetic three-way valve respectively;

[0076] The control system 50 is used to control the detection device 30 to perform detection and receive the weight or pressure of the slurry inside the slurry pipe 131 detected by the detection device 30;

[0077] The control system 50 is further configured to control the electromagnetic three-way valve to be in the first state or the second state according to the weight or pressure of the slurry inside the slurry pipeline 131 .

[0078] Specifically, the detection device 30 sends the detected weight or pressure of the slurry inside the slurry pipe 131 to the control system 50. A predetermined threshold is preset inside the control system 50. When it is detected that the weight or pressure of the slurry inside the slurry pipe 131 is greater than or equal to the predetermined threshold, the control system 50 controls the electromagnetic three-way valve to be in the second state, the second discharge port 13 is connected to the input port 11, and the slurry flows along the second feed passage to the recovery passage; when it is detected that the weight or pressure of the slurry inside the slurry pipe 131 is less than the predetermined threshold and remains stable for a preset time, the control system 50 controls the electromagnetic three-way valve to switch from the second state to the first state and maintain it in the first state, the first discharge port 12 is connected to the input port 11, and the slurry flows along the first feed passage.

[0079] In this embodiment, the control system 50 is conducive to real-time adjustment of the electromagnetic three-way valve to the first state or the second state according to the weight or pressure of the slurry in the slurry pipeline 131 detected by the detection device 30, thereby reliably realizing efficient recovery of the slurry without manual operation, improving production and processing efficiency, avoiding the risk of pipeline blockage, and ensuring the normal execution of the production and processing procedures.

[0080] In some embodiments, the bottom of the recycling barrel 20 is further provided with moving wheels 23 to facilitate the transportation of the recycling barrel 20 .

[0081] In summary, the slurry recovery device 130 of the embodiment of the present application is provided with a diverter valve 10 on the slurry pipe 131, the diverter valve 10 having at least an input port 11, a first discharge port 12, and a second discharge port 13, and the recovery bucket 20 is provided at the discharge end of the second discharge port 13, so that the input port 11 and the first discharge port 12 form a first feed passage, and the input port 11 and the second discharge port 13 form a second feed passage, and the diverter valve 10 has a first state and a second state. In the first state, the slurry flows along the first feed passage L1, and in the second state, the slurry flows along the second feed passage L2, and the weight or the like of the slurry inside the slurry pipe 131 is detected by the detection device 30. Pressure, according to the detected weight or pressure, adjusts the diverter valve 10 to the second state, so that the second discharge port 13 of the diverter valve 10 is connected, so that the slurry is discharged from the second material delivery passage to the recovery bucket 20. Therefore, the state of the diverter valve 10 can be adjusted in real time according to the slurry weight or pressure in the slurry pipeline 131, so that the slurry can be discharged to the recovery bucket 20 in time, thereby achieving efficient and full recovery of the slurry, and reliably avoiding the problem of blockage of the slurry pipeline 131, thereby improving production efficiency; the slurry recovery device 130 of the utility model realizes efficient recovery of slurry through the detection device 30 and the diverter valve 10, has a simple structure, is easy to implement, and does not have the risk of pipeline blockage;

[0082] In addition, by setting up a vacuum pump or pneumatic components, it is helpful to accelerate the flow speed of the slurry, thereby improving the slurry recovery efficiency; the setting of the control system 50 and the electromagnetic three-way valve is conducive to realizing the automation of slurry recovery, improving production efficiency, liberating manpower, and reducing labor costs.

[0083] In the second aspect, the present invention provides a coating device 100, such as Figure 8 As shown, it includes the slurry recovery device 130 of the first aspect, and the coating equipment 100 also includes a coating roller 101, a material trough 110 and a homogenizer 120. The discharge port of the material trough 110 is connected to the input port 11 side of the diverter valve 10, and the discharge port of the recovery barrel 20 is connected to the homogenizer 120.

[0084] Among them, the homogenizer 120 is used to make the slurry evenly distributed by stirring, and the material tank 110 is used to provide slurry to the coating roller. The slurry in the homogenizer flows into the inside of the material tank, and a part of the coating roller 101 extends below the liquid surface in the material tank. After the coating roller is covered with slurry, a coating layer is formed on the collector or diaphragm. The discharge port of the material tank is connected to the input port 11 side of the diverter valve 10. The weight or pressure of the slurry is detected by the detection device 30, and the diverter valve 10 is controlled to be in the second state, so that the slurry is recovered to the inside of the recovery channel. The discharge port of the recovery barrel 20 is connected to the homogenizer, which is conducive to repeating the recovered slurry and avoiding slurry waste.

[0085] The coating equipment of the present application is described below through a specific embodiment.

[0086] like Figure 1-6 As shown, the slurry recovery device 130 includes a diverter valve 10, a weight sensor, a feed pipeline 40, a recovery bucket 20 and a vacuum pump; wherein the diverter valve 10 is a mechanical three-way valve, which is arranged on the slurry pipeline 131, and has an input port 11, a first discharge port 12 and a second discharge port 13. The weight sensor is located on the input port 11 side of the diverter valve 10, and the second discharge port 13 is connected to one end of the feed pipeline 40. The outer wall of the other end of the feed pipeline 40 is provided with an external thread 41, and the inner wall of the feed port 21 of the recovery bucket 20 is provided with an internal thread 24. The end of the feed pipeline 40 extends into the interior of the feed port 21 of the recovery bucket 20, and the external thread 41 and the internal thread 24 are threadedly locked. The recovery bucket 20 is also provided with an exhaust port 22, which is connected to the vacuum pump;

[0087] When slurry flows in the slurry pipeline 131, under normal circumstances, the mechanical three-way valve is in the first state, the first discharge port 12 and the input port 11 are connected, and the slurry flows along the first feeding passage; the weight sensor detects the weight of the slurry inside the slurry pipeline 131 in real time. When the weight detected by the weight sensor exceeds the predetermined threshold, the mechanical three-way valve is operated to the second state, the second discharge port 13 is connected to the input port 11, and the vacuum pump is turned on at the same time to vacuum the recovery passage so that a negative pressure is formed inside the recovery barrel 20. The slurry is accelerated to flow along the second feeding passage to the inside of the recovery passage to realize the recovery of the slurry. The weight sensor is observed. When the value of the weight sensor drops below the predetermined threshold and remains stable for a predetermined time, the mechanical three-way valve is operated to the first state and the vacuum pump is turned off. At this time, the threads of the feeding pipeline 40 and the feed port 21 of the recovery barrel 20 are loosened, and the recovery barrel 20 is removed and transported to the coating buffer tank for slurry reuse.

[0088] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. Slurry recovery device, characterized in that: include: a diverter valve, the diverter valve being installed on the slurry pipeline, the diverter valve having at least an input port, a first discharge port, and a second discharge port. The diverter valve includes a first state and a second state. When the diverter valve is in the first state, the first discharge port is connected to the input port to form a first liquid infusion passage, and the slurry in the slurry pipeline flows along the first liquid infusion passage; a recovery bucket, the recovery bucket being disposed at the discharge end of the second discharge outlet, the feed port of the recovery bucket being connected to the second discharge outlet, the diverter valve being in the second state, the second discharge outlet being connected to the feed port to form a second liquid infusion passage, and the slurry in the slurry pipeline flowing along the second liquid infusion passage into the interior of the recovery bucket; A detection device is provided on the slurry pipeline and is at least located on the input port side of the diverter valve. The detection device is used to detect the weight or pressure of the slurry inside the slurry pipeline. When the weight or pressure of the slurry inside the slurry pipeline reaches a predetermined threshold, the diverter valve is adjusted to be in the second state.

2. The slurry recovery device according to claim 1, characterized in that: The diverter valves include at least two, and the at least two diverter valves are spaced apart along the length direction of the slurry pipeline; correspondingly, the recovery barrels include at least two, and each recovery barrel is arranged at the discharge end of the second discharge outlet of each diverter valve.

3. The slurry recovery device according to claim 1, characterized in that: The slurry recovery device also includes: A pneumatic component is arranged on the input port side of the diverter valve. The pneumatic component includes an inflatable member and a propulsion member. The propulsion member is arranged inside the slurry pipeline. The inflatable member is connected to the slurry pipeline. The inflatable member drives the propulsion member to move, and the propulsion member pushes the slurry to flow.

4. The slurry recovery device according to claim 1, characterized in that: The slurry recovery device also includes: A vacuum pump is provided on the recovery barrel, and an exhaust port is provided, and the vacuum pump is connected to the exhaust port.

5. The slurry recovery device according to claim 1, characterized in that: The slurry recovery device includes a feed pipeline, one end of which is connected to the second discharge outlet, and the other end of which is connected to the feed port of the recovery barrel, and the feed pipeline and the feed port of the recovery barrel are detachably connected.

6. The slurry recovery device according to claim 5, characterized in that: A first fitting portion is provided at the end of the material delivery pipeline, and a second fitting portion is provided on the recovery barrel. The end of the material delivery pipeline is located inside the feed port of the recovery barrel, the first fitting portion and the second fitting portion cooperate, and the end of the material delivery pipeline is connected to the feed port of the recovery barrel.

7. The slurry recovery device according to claim 6, characterized in that: The first matching portion includes an external thread provided on the outer wall of the material delivery pipeline, and the second matching portion includes an internal thread provided on the inner wall of the material feed port of the recovery barrel, and the external thread and the internal thread match each other.

8. The slurry recovery device according to any one of claims 1 to 7, characterized in that: The diverter valve includes an electromagnetic three-way valve.

9. The slurry recovery device according to claim 8, characterized in that: The slurry recovery device further includes a control system, which is electrically connected to the detection device and the electromagnetic three-way valve respectively; The control system is used to control the detection device to perform detection and receive the weight or pressure of the slurry inside the slurry pipeline detected by the detection device; The control system is further configured to control the electromagnetic three-way valve to be in the first state or the second state according to the weight or pressure of the slurry inside the slurry pipeline.

10. Coating equipment, characterized in that The invention comprises the slurry recovery device according to any one of claims 1 to 9.

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