Tubular paste extrusion positive plate lead paste recovery equipment
Through the tubular extrusion paste positive plate lead paste recovery equipment, the suspension is separated by centrifugal force of the screw propeller and the rotating drum, the problems of overflow and loss of lead paste are solved, and the efficient recovery of lead paste and the stability of plate quality are achieved.
Patent Information
- Application Number
- CN202421542274.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the existing production process of extruded paste positive electrode plates, there are problems such as overflow of lead paste, loss of lead paste and low production efficiency. Especially in the replacement machine, the squeezing operation stop and the plate cleaning process, the consistency and activity of lead paste utilization are poor.
A tube-type extrusion paste positive plate lead paste recovery equipment is adopted, and the centrifugal force is used to generate a suspension separation liquid using different speeds of the screw propeller and the drum to form a solid and liquid layer, and the lead paste and moisture are discharged through the discharge port and the clean liquid outlet respectively to achieve effective recovery of lead paste.
It improves the consistency and activity of lead paste reuse, improves production efficiency, reduces production cost pressure, and ensures the consistency of the quality of the plate.
Smart Images

Figure CN223234047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to battery manufacturing, in particular to a tubular paste-extruding positive plate lead paste recovery device. Background Art
[0002] At present, the main production methods of tubular battery positive plates are powder filling and paste extrusion. Compared with the powder filling production process, the paste extrusion positive plate production has obvious advantages in environmental protection and consistency of active materials. Domestic large-scale battery manufacturers are promoting or switching to the paste extrusion production process. Therefore, there is a special need for a tubular paste extrusion positive plate lead paste recovery equipment.
[0003] However, existing paste-extrusion positive plate production processes present the following challenges: lead paste overflow during machine changes; lead paste overflow due to pressure inertia when extrusion stops; and lead paste loss during the plate cleaning process. Currently, the primary treatment method involves separating water and lead paste through multi-stage precipitation, which then extracts the paste for reuse. This approach is inefficient, and the consistency and activity of the reused paste can vary significantly. To mitigate production costs and ensure consistent plate quality, effective and convenient utilization of this lead paste is a critical technology challenge. Utility Model Content
[0004] The purpose of the present utility model is to provide a tubular extruded paste positive plate lead paste recovery device to solve the following problems in the existing extruded paste positive plate production process proposed in the above background technology: lead paste overflow caused by changing the type and adjusting the machine; lead paste overflow caused by pressure inertia when the extrusion action stops; lead paste loss caused by the plate cleaning process. The current treatment method is mainly to separate water and lead paste in a multi-stage precipitation method and then take out the lead paste for utilization. Such operation has low production efficiency, and there are also large differences in the consistency and activity of the reused lead paste. In order to alleviate the pressure of production costs and ensure the consistency of plate quality, how to effectively and conveniently utilize the lead paste is a technology that urgently needs to be overcome.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a tubular paste-extruding positive plate lead paste recovery device, comprising a housing, a partition fixedly connected to the inner surface of the housing, an inclined block mounted on one side surface of the partition, a rotating drum mounted inside the housing, a feed pipe mounted on one side surface of the drum, a feed port formed on one end surface of the feed pipe, a collection mechanism disposed on the outer side of the rotating drum, and a cleaning mechanism disposed on one side of the housing;
[0006] The collecting mechanism includes a screw propeller, a discharge port, a clear liquid outlet, a slag discharge port, a mounting block, a bearing, a differential and a gear box. The inner surface of the drum is fixedly mounted with a screw propeller, the outer surface of the drum is provided with a discharge port, the outer surface of the drum is provided with a clear liquid outlet, the outer surface of the drum is provided with a slag discharge port, a mounting block is mounted on one side of the drum, the inner surface of the mounting block is fixedly connected to a bearing, a differential is mounted on one end surface of the drum, and a gear box is fixedly mounted on the outer surface of the differential.
[0007] Preferably, the cleaning mechanism includes a water outlet, a placement groove, a sealing ring, a water pipe, a water pump and a water tank. The outer surface of the shell is provided with a water outlet, the inner surface of the water outlet is provided with a placement groove, the inner surface of the placement groove is installed with a sealing ring, one side surface of the water outlet is fixedly connected to a water pipe, one end of the water pipe is fixedly installed with a water pump, and a water tank is placed on one side surface of the water pump.
[0008] Preferably, the partitions are installed symmetrically with respect to the central axis of the shell, and the inclined blocks are installed symmetrically with respect to the central axis of the shell.
[0009] Preferably, the outer surface size of the drum matches the inner surface size of the screw propeller, and the clear liquid outlet is opened symmetrically with respect to the central axis of the drum.
[0010] Preferably, the outer surface size of the bearing matches the inner surface size of the mounting block, and the outer surface size of the differential matches the inner surface size of the gearbox.
[0011] Preferably, the water outlet holes are opened symmetrically with respect to the central axis of the shell, and the outer surface size of the sealing ring matches the inner surface size of the placement groove.
[0012] Preferably, the water tank is connected to the water outlet through a water pipe, and the water pipe is connected to the feed pipe.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the tubular paste-extruding positive plate lead paste recovery equipment is equipped with a screw propeller, a discharge port, a clear liquid outlet, a slag discharge port, a mounting block, a bearing, a differential and a gear box. When the suspension to be separated is fed into the drum, it is immediately thrown into the drum cavity under the action of the centrifugal force generated by the high-speed rotation. The high-speed rotating drum generates a strong centrifugal force to throw the solid phase particles with a density greater than that of the liquid phase through the discharge port and stick to the inner wall of the drum to form a solid layer. Since the water has a lower density and a smaller centrifugal force, it can only form a liquid layer on the inside of the solid ring layer, which is called a liquid ring layer. Due to the different rotation speeds of the screw propeller and the drum, there is a certain speed difference between the two. The relative movement of the screw propeller and the drum is used to slowly push the lead paste in the solid ring layer to the conical end of the drum and continuously discharge it from the outlets distributed around the circumference of the drum. The liquid in the liquid ring layer is continuously overflowed from the weir by gravity to the outside of the drum to form a separated liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the clear liquid outlet and slag discharge port of the utility model;
[0016] Figure 3 This is a schematic diagram of the water pump and water pipe structure of the utility model;
[0017] Figure 4 For this utility model Figure 3 A in the figure is an enlarged structural diagram.
[0018] In the figure: 1. Shell; 2. Partition; 3. Inclined block; 4. Drum; 5. Feed pipe; 6. Feed inlet; 7. Collecting mechanism; 701. Screw propeller; 702. Discharge port; 703. Clear liquid outlet; 704. Slag discharge port; 705. Mounting block; 706. Bearing; 707. Differential; 708. Gear box; 8. Cleaning mechanism; 801. Water outlet; 802. Placement trough; 803. Sealing ring; 804. Water pipe; 805. Water pump; 806. Water tank. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1-4The utility model provides a technical solution: a tubular paste-extruding positive plate lead paste recovery device, comprising a shell 1, a partition 2 is fixedly connected to the inner surface of the shell 1, an inclined block 3 is installed on one side surface of the partition 2, a rotating drum 4 is installed inside the shell 1, a feeding pipe 5 is installed on one side surface of the rotating drum 4, a feeding port 6 is opened on one end surface of the feeding pipe 5, a collecting mechanism 7 is provided on the outer side of the rotating drum 4, and a cleaning mechanism 8 is provided on one side of the shell 1;
[0021] The collecting mechanism 7 includes a screw propeller 701, a discharge port 702, a clear liquid outlet 703, a slag discharge port 704, a mounting block 705, a bearing 706, a differential 707 and a gear box 708. The inner surface of the drum 4 is fixedly mounted with the screw propeller 701, the outer surface of the drum 4 is provided with a discharge port 702, the outer surface of the drum 4 is provided with a clear liquid outlet 703, the outer surface of the drum 4 is provided with a slag discharge port 704, a mounting block 705 is mounted on one side of the drum 4, the inner surface of the mounting block 705 is fixedly connected to the bearing 706, a differential 707 is mounted on one end surface of the drum 4, and the outer surface of the differential 707 is fixedly mounted with a gear box 708. 06. The setting of the differential 707 and the gear box 708. When the suspension to be separated is fed into the drum, it is immediately thrown into the cavity of the drum 4 under the action of the centrifugal force generated by the high-speed rotation. The high-speed rotating drum 4 generates a strong centrifugal force to throw the solid phase particles with a density greater than the liquid phase onto the inner wall of the drum 4 through the discharge port 702 to form a solid layer. Since the water has a lower density and a smaller centrifugal force, it can only form a liquid layer inside the solid ring layer, which is called a liquid ring layer. Since the rotation speeds of the screw propeller 701 and the drum 4 are different, there is a certain speed difference between the two. The relative movement of the screw propeller 701 and the drum 4 is used to slowly push the lead paste of the solid ring layer to the conical end of the drum 4 and continuously discharge it from the outlets distributed around the circumference of the drum 4. The liquid in the liquid ring layer is continuously overflowed from the weir by gravity to the outside of the drum 4 to form a separated liquid.
[0022] Furthermore, the cleaning mechanism 8 includes a water outlet 801, a placement groove 802, a sealing ring 803, a water pipe 804, a water pump 805 and a water tank 806. The outer surface of the housing 1 is provided with a water outlet 801, the inner surface of the water outlet 801 is provided with a placement groove 802, the inner surface of the placement groove 802 is installed with a sealing ring 803, one side surface of the water outlet 801 is fixedly connected to the water pipe 804, one end of the water pipe 804 is fixedly installed with a water pump 805, and one side surface of the water pump 805 is placed with a water pump 805. Box 806, through the arrangement of the water outlet 801, the placement groove 802, the sealing ring 803, the water pipe 804, the water pump 805 and the water tank 806, the water pipe 804 is installed on one side of the water outlet 801, and then the discharged clear night is collected and stored in the water tank 806, and then extracted by the water pump 805, and then re-input into the rotating drum 4 through the water pipe 804 to clean the inside thereof, and the sealing ring 803 is installed in the placement groove 802 in the water outlet 801 to prevent the clear night from leaking.
[0023] Furthermore, the partition 2 is symmetrically installed with respect to the central axis of the shell 1 , and the inclined block 3 is symmetrically installed with respect to the central axis of the shell 1 . By setting the inclined block 3 , the clear water and lead paste can be discharged.
[0024] Furthermore, the outer surface size of the drum 4 matches the inner surface size of the screw propeller 701, and the clear liquid outlet 703 is symmetrically opened with the central axis of the drum 4. Through the setting of the screw propeller 701, it can move the lead paste thrown out by centrifugal force.
[0025] Furthermore, the outer surface size of the bearing 706 matches the inner surface size of the mounting block 705, and the outer surface size of the differential 707 matches the inner surface size of the gear box 708. Through the setting of the bearing 706, the device will not affect other devices during rotation.
[0026] Furthermore, the water outlet 801 is symmetrically opened with respect to the central axis of the housing 1, and the outer surface size of the sealing ring 803 matches the inner surface size of the placement groove 802. The setting of the sealing ring 803 can prevent the clear liquid from overflowing when being collected.
[0027] Furthermore, the water tank 806 is connected to the water outlet 801 through the water pipe 804, and the water pipe 804 is connected to the feed pipe 5. Through the setting of the water tank 806, the clear liquid can be collected for next use.
[0028] Working principle: First, when the suspension to be separated is fed into the drum, it is immediately thrown into the drum 4 cavity under the centrifugal force generated by high-speed rotation. The high-speed rotating drum 4 generates a strong centrifugal force to throw the solid phase particles with a density greater than that of the liquid phase through the discharge port 702 and stick them to the inner wall of the drum 4 to form a solid layer. Since the water has a lower density and a smaller centrifugal force, it can only form a liquid layer inside the solid ring layer, which is called a liquid ring layer. Due to the different speeds of the screw propeller 701 and the drum 4, there is a certain speed difference between the two. The relative rotation of the screw propeller 701 and the drum 4 is used to separate the solid phase particles. The movement slowly pushes the lead paste of the solid ring layer to the conical end of the drum 4, and is continuously discharged from the outlets distributed around the circumference of the drum 4. The liquid in the liquid ring layer overflows from the weir mouth by gravity and is discharged to the outside of the drum 4 to form a separated liquid. The water pipe 804 is installed on one side of the water outlet 801, and then the discharged clear liquid is collected and stored in the water tank 806. It is then pumped out by the water pump 805 and re-input into the drum 4 through the water pipe 804 to clean its interior. The sealing ring 803 is installed in the placement groove 802 in the water outlet 801 to prevent the clear liquid from leaking.
[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tubular paste-extruding positive plate lead paste recovery device, comprising a housing (1), characterized in that: A partition (2) is fixedly connected to the inner surface of the shell (1), an inclined block (3) is installed on one side surface of the partition (2), a rotating drum (4) is installed inside the shell (1), a material delivery pipe (5) is installed on one side surface of the rotating drum (4), a material feed port (6) is provided on one end surface of the material delivery pipe (5), a collecting mechanism (7) is provided on the outer side of the rotating drum (4), and a cleaning mechanism (8) is provided on one side of the shell (1); The collecting mechanism (7) comprises a screw propeller (701), a discharge port (702), a clear liquid outlet (703), a slag discharge port (704), a mounting block (705), a bearing (706), a differential (707) and a gear box (708); the inner surface of the rotary drum (4) is fixedly mounted with the screw propeller (701); the outer surface of the rotary drum (4) is provided with a discharge port (702); the outer surface of the rotary drum (4) is provided with a clear liquid outlet (703); the outer surface of the rotary drum (4) is provided with a slag discharge port (704); a mounting block (705) is mounted on one side of the rotary drum (4); the inner surface of the mounting block (705) is fixedly connected to the bearing (706); a differential (707) is mounted on one end surface of the rotary drum (4); and the outer surface of the differential (707) is fixedly mounted with the gear box (708).
2. The tubular paste-extruding positive plate lead paste recovery device according to claim 1, characterized in that: The cleaning mechanism (8) comprises a water outlet (801), a placement groove (802), a sealing ring (803), a water pipe (804), a water pump (805) and a water tank (806). The outer surface of the housing (1) is provided with a water outlet (801), the inner surface of the water outlet (801) is provided with a placement groove (802), the inner surface of the placement groove (802) is provided with a sealing ring (803), one side surface of the water outlet (801) is fixedly connected to the water pipe (804), one end of the water pipe (804) is fixedly installed with the water pump (805), and the water tank (806) is placed on one side surface of the water pump (805).
3. The tubular paste-extruding positive plate lead paste recovery device according to claim 1, characterized in that: The partition (2) is installed symmetrically with respect to the central axis of the outer shell (1), and the inclined block (3) is installed symmetrically with respect to the central axis of the outer shell (1).
4. The tubular paste-extruding positive plate lead paste recovery device according to claim 1, characterized in that: The outer surface size of the rotating drum (4) matches the inner surface size of the screw propeller (701), and the clear liquid outlet (703) is symmetrically opened with respect to the central axis of the rotating drum (4).
5. The tubular paste-extruding positive plate lead paste recovery device according to claim 1, characterized in that: The outer surface size of the bearing (706) matches the inner surface size of the mounting block (705), and the outer surface size of the differential (707) matches the inner surface size of the gear box (708).
6. The tubular paste-extruding positive plate lead paste recovery device according to claim 2, characterized in that: The water outlet holes (801) are symmetrically opened with respect to the central axis of the housing (1), and the outer surface size of the sealing ring (803) matches the inner surface size of the placement groove (802).
7. The tubular paste-extruding positive plate lead paste recovery device according to claim 2, characterized in that: The water tank (806) is connected to the water outlet (801) via a water pipe (804), and the water pipe (804) is connected to the feed pipe (5).