Automatic sorting device for battery covers and lead piles

Abstract

The utility model relates to an automatic sorting device for a battery cover and a lead pile, which comprises a rack provided with an obliquely arranged conveying chamber. The sorting container is fixed on the rack and comprises a hydraulic sorting hopper, a solution with the density larger than that of a battery cover plastic sheet and smaller than that of a lead pile is contained in the hydraulic sorting hopper, and the bottom of the hydraulic sorting hopper is communicated with the conveying cavity. And the circulating water flow driving mechanism is arranged in the sorting container and is used for forming directional flowing water power in the hydraulic sorting hopper. And the input pipeline is communicated with the hydraulic separation hopper or the lower end part of the conveying chamber and is used for feeding a crushed battery cover mixture. And the discharge hole is formed in the upper end of the conveying chamber. The conveying device is arranged in the conveying cavity and used for conveying the lead piles with the density larger than that of the solution to the discharging port from the bottom of the hydraulic separation hopper. The scheme has the advantages that the sorting efficiency is improved, the cost is reduced, and the sorting precision and the automation degree are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste lead -acid battery recycling, especially to a battery cover and lead pile automatic sorting device. BACKGROUND

[0002] In the field of waste lead -acid battery recycling, the battery cover is usually composed of a plastic shell and a lead pile embedded therein. In the traditional processing technology, after the battery cover is broken by a plastic crusher, the mixture of plastic pieces and lead piles needs to be separated by manual sorting. This manual sorting method has significant defects:

[0003] Low efficiency: manual sorting relies on operator visual screening, which is time-consuming and labor-intensive, and cannot meet the efficiency requirements of industrial large-scale production. This method not only has slow processing speed, but also causes bottlenecks in the production line, affecting overall production efficiency.

[0004] High cost: Labor-intensive operation mode leads to high labor costs, and long-term sorting can cause health problems for workers. With the continuous rise of labor costs, the economic feasibility of this sorting method is gradually decreasing. In addition, long-term contact with waste battery materials may pose a potential threat to workers' health, increasing the cost of occupational health management for enterprises.

[0005] Insufficient sorting accuracy: manual operation is easily affected by fatigue and subjective judgment, which can cause mixing of plastic and lead piles, reducing the purity of recycled materials. This not only affects the quality of recycled materials, but also can lead to reduced efficiency or quality problems in subsequent processing procedures.

[0006] Low automation: the traditional process lacks continuous processing capability and cannot efficiently connect with crushing, conveying and other processes, restricting the overall production line efficiency. This batch production mode increases the cost of material accumulation and transfer in the middle link, reducing the efficiency of the entire recycling process.

[0007] To solve the above problems, some technologies try to use density sorting method, such as separating materials of different densities by flotation liquid. However, existing density sorting devices mostly rely on single buoyancy, which is easy to cause unstable sorting effect due to material accumulation or uneven distribution of buoyancy for plastic pieces and lead piles with significant density difference but similar size (plastic density about 1.5g / cm 3 , lead pile density about 11.4g / cm 3 ). Although this method is theoretically feasible, it still faces many challenges in practical application, such as unstable sorting accuracy and material blockage.

[0008] In addition, the conventional device lacks an efficient water power circulation design, and it is difficult to realize the rapid separation of light materials (such as plastic sheets) and the directional conveying of heavy materials (such as lead piles), and still needs manual intervention or auxiliary equipment cooperation. This not only increases the complexity and difficulty of operation of the equipment, but also cannot completely eliminate manual intervention, affecting the degree of automation and production efficiency.

[0009] In view of the above problems, the prior art needs to be improved. SUMMARY

[0010] In order to solve the above problems, the purpose of the utility model is to provide a battery cover and lead pile automatic sorting device, which has the advantages of improving the sorting efficiency, reducing the cost, improving the sorting precision and the degree of automation.

[0011] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0012] The application provides a battery cover and lead pile automatic sorting device, and the technical scheme is as follows: a rack is provided with an inclined conveying chamber at the upper part. A sorting container is fixed on the rack and includes a hydraulic sorting hopper. The hydraulic sorting hopper is filled with a solution whose density is greater than that of battery cover plastic sheets and less than that of lead piles. The bottom of the hydraulic sorting hopper is communicated with the conveying chamber. A circulating water flow driving mechanism is arranged in the sorting container and is used to form a directional water power in the hydraulic sorting hopper. An input pipeline is communicated with the lower end of the hydraulic sorting hopper or the conveying chamber and is used to send the crushed battery cover mixture. A discharge port is arranged at the upper end of the conveying chamber. A conveying device is arranged in the conveying chamber and is used to convey the lead piles with a density greater than that of the solution from the bottom of the hydraulic sorting hopper to the discharge port.

[0013] Further, the application also provides that the inlet end of the input pipeline is communicated with the bottom of the hydraulic sorting hopper or the lower end of the conveying chamber.

[0014] Further, the application also provides that the circulating water flow driving mechanism includes a water pump and a preset circulating flow channel. The water pump forms a directional water power in the hydraulic sorting hopper through the circulating flow channel.

[0015] Further, the application also provides that the inclination angle of the hydraulic sorting hopper is 30-60°, and the lower end of the inclination direction is provided with an opening which is communicated with the conveying chamber.

[0016] Further, the application also provides that the conveying device is a spiral conveyor which includes a rotating conveying screw. The conveying screw extends to the bottom of the hydraulic sorting hopper to collect and convey the lead piles settled at the bottom.

[0017] ​Further, the screw conveyor further comprises a driving assembly, the driving assembly comprising a driving motor and a speed reducer, an output shaft of the speed reducer being rotatably positioned on the frame by a bearing and being connected with the upper end of the conveying screw rod.

[0018] Further, the lower end of the conveying screw rod is provided with a rotating notch, and the lower end of the conveying chamber is provided with a rotating shaft or positioning shaft which is inserted into the rotating notch to define the rotating track of the conveying screw rod.

[0019] Further, the frame comprises a front leg and a rear leg, and the height difference between the front leg and the rear leg makes the frame in an inclined arrangement, and the inclination angle of the conveying chamber is consistent with the inclination angle of the frame.

[0020] Further, the density of the solution is 1.6-2.0 g / cm3.

[0021] Further, the density of the solution is 1.8 g / cm3.

[0022] As can be seen from the above, the battery cover and lead pile automatic sorting device provided by the application comprises a frame, a sorting container, a circulating water flow driving mechanism, an input pipeline, a discharge port and a conveying device, and the automatic separation of the battery cover plastic sheet and the lead pile is realized through the density difference and the directional water flow of the solution in the hydraulic sorting hopper, and the lead pile is conveyed to the discharge port through the conveying device, thereby solving the problems of low efficiency, high cost, insufficient precision and low automation degree of traditional manual sorting, and having the advantages of improving the sorting efficiency, reducing the cost, improving the sorting precision and the automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a side view of the battery cover and lead pile automatic sorting device provided by the application.

[0024] Figure 2 FIG. 2 is a top view of the automatic sorting device provided by the application.

[0025] Figure 3 FIG. 3 is a front view of the automatic sorting device provided by the application.

[0026] Figure 4 FIG. 4 is an A-A sectional view of the automatic sorting device provided by the application. Figure 3

[0027] Figure 5 FIG. 5 is an A part enlarged view of the automatic sorting device provided by the application. Figure 4

[0028] Figure 6 Figure 4 ​​​An enlarged view of part B. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected, or electrically connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present utility model, unless otherwise expressly provided and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on the surface of" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0034] As shown in Figures 1 to 6 The present embodiment relates to a battery cover and lead pile automatic sorting device, including rack 1, the upper part of which is provided with an inclined arrangement of conveying chamber 11. The sorting container is fixed on the rack 1 and includes a hydraulic sorting hopper 21. The hydraulic sorting hopper 21 contains a solution with a density greater than that of the battery cover plastic sheet and less than that of the lead pile. The bottom of the hydraulic sorting hopper 21 is connected to the conveying chamber 11. A circulating water flow driving mechanism is arranged in the sorting container to form a directional water power in the hydraulic sorting hopper 21. An input pipe 4 is connected to the lower end of the hydraulic sorting hopper 21 or the conveying chamber 11 to send in the broken battery cover mixture. An outlet 5 is arranged at the upper end of the conveying chamber 11. A conveying device is arranged in the conveying chamber 11 to convey the lead pile with a density greater than that of the solution from the bottom of the hydraulic sorting hopper 21 to the outlet 5.

[0035] In a specific embodiment, the density of the solution can be selected in the range of 1.6-2.0 g / cm3. As a preferred embodiment, the density of the solution can be set to 1.8 g / cm3. This technical solution realizes automatic sorting by precisely controlling the density of the solution between the battery cover plastic sheet and the lead pile, taking advantage of the density difference between the two. The value is strictly between the density of the battery cover plastic sheet (1.5 g / cm3) and the density of the lead pile (11.4 g / cm3). Therefore, under the water power environment formed by the circulating water flow driving mechanism, the plastic sheet stably floats up because its density is lower than that of the solution, and the lead pile quickly settles down because its density is higher than that of the solution.

[0036] In this scheme, the circulating water flow driving mechanism can be realized by a water pump and a preset circulating flow channel, wherein the water pump power can be adjusted to adapt to different material processing capacity, and the circulating flow channel 32 can be designed as a ring or spiral structure to optimize the water flow distribution. The technical scheme realizes automatic sorting through the synergistic effect of density separation and mechanical conveying. The solution of a specific density in the hydraulic sorting hopper 21 makes the plastic sheet float and the lead pile sink, and the directional water flow generated by the circulating water flow driving mechanism accelerates the plastic sheet separation process. The inclined conveying chamber 11 provides gravity-assisted conveying conditions for the lead pile, and the spiral conveying device realizes continuous output of heavy materials. Compared with the traditional manual sorting, the device has the advantages of high sorting efficiency, large processing capacity and stable separation precision, and avoids the health risks brought by manual operation. Compared with the existing density separation equipment, by integrating the circulating water flow system and the mechanical conveying structure, the problem of unstable separation effect caused by material accumulation in the traditional device is solved, and the whole process automation from feeding to discharging is realized.

[0037] In a specific embodiment, the inlet end of the input pipe 4 is connected to the bottom of the hydraulic sorting hopper 21 or the lower end of the conveying chamber 11. The connection between the inlet end and the bottom of the hydraulic sorting hopper 21 can be realized by flange fixing or welding, wherein the flange connection needs to be equipped with a sealing gasket to prevent liquid leakage. When the lower end of the conveying chamber 11 is connected, the inlet end can extend to 10-15 cm above the rotating slot 611 of the conveying screw 61, and be fixed to the chamber wall by a clamp. This technical scheme defines two standardized connection positions, so that the broken mixture can choose to enter the sorting liquid or the conveying channel according to the working condition requirements. When the bottom of the hydraulic sorting hopper 21 is connected, the mixture falls vertically into the sorting liquid under the action of gravity, and immediately starts the density separation process. When the lower end of the conveying chamber 11 is connected, the mixture first enters the action area of the conveying screw 61, and the battery cover plastic sheet floats to the hydraulic sorting hopper 21 under the buoyancy of the solution. The deterministic material path formed thereby can eliminate the material retention phenomenon caused by ambiguous connection position in the traditional device, while retaining the installation adaptability. Compared with the prior art, this scheme accurately defines the structure position, which improves the stability of the separation process by about 40%, and realizes continuous conveying without adding guide components.

[0038] Further, the circulating water flow driving mechanism includes a water pump and a preset circulating flow channel. The water pump forms a directional water power in the hydraulic sorting hopper 21 through the circulating flow channel 32. The water pump can be a centrifugal pump or an axial flow pump, and the power range is preferably 0.5-3 kW, and the flow adjustment is controlled by a frequency converter. The preset circulating flow channel includes the following implementation modes: the first is a ring-shaped pipeline structure arranged circumferentially along the inner wall of the sorting hopper 21, and a plurality of jet holes are formed in the side wall of the pipeline. The second is a U-shaped flow channel, and the water inlet and the water outlet are respectively located on the opposite sides of the hopper 21. The third is a multi-layer shunt structure, and a plurality of groups of parallel guide plates are arranged in the vertical direction. The cross-sectional shape of the circulating flow channel 32 can be circular, rectangular or trapezoidal, and the material is selected from PVC and stainless steel. The connection mode of the water pump and the circulating flow channel 32 includes flange connection or quick connector connection, and a flow straightener can be additionally arranged in the pipeline to stabilize the water flow. The technical scheme establishes a controllable directional water flow in the sorting hopper 21 through mechanical forced circulation. The water pump provides a stable power source, and the circulating flow channel 32 guides the water flow to form a specific path, and the two work together to produce the following effects: the lightweight plastic sheet is continuously driven by the directional water flow to a specific area, avoiding material accumulation caused by insufficient natural flow. The heavy lead pile quickly settles in the stable flow field, reducing turbulent interference. The solution maintains a uniform flow state to prevent density stratification. Compared with the traditional sorting method relying on natural convection, this design significantly improves the sorting efficiency and separation accuracy, and solves the problem of plastic sheet residue caused by insufficient water power. In specific implementation, the water flow speed and direction can be optimized by adjusting the water pump power and the structure parameters of the flow channel 32 to adapt to the separation requirements of different particle sizes of materials.

[0039] Further, the present application also proposes that the inclination angle of the hydraulic sorting hopper 21 is 30°-60°, and the lower end of the inclination direction is provided with an overflow port 211, which is in communication with the conveying chamber 11. Therefore, the technical scheme realizes the inclination design in a specific angle range, so that the heavy lead pile is gathered to the lower end along the inclined surface under the action of gravity, and the lightweight plastic sheet is floated upward under the action of water flow. When the inclination angle is less than 30°, the material settling speed is insufficient, and when it is greater than 60°, the lead pile sliding speed is too fast to affect the separation accuracy. The direct communication structure of the overflow port 211 and the conveying chamber 11 forms a closed material transfer channel, and the lead pile settled at the bottom of the hopper 21 automatically enters the conveying chamber 11 through the overflow port 211 and is continuously output by the screw conveyor 6. Compared with the prior art, this design eliminates the intermittent operation of the material transfer link in the traditional sorting device, realizes the continuous connection of the sorting and conveying processes, improves the processing efficiency by about 40%, and avoids the secondary pollution risk caused by manual intervention.

[0040] As Figure 2 and 4As shown, the conveying device is a screw conveyor, including a rotatingly arranged conveying screw 61 extending to the bottom of the hydro-sorting hopper 21 to collect and convey the lead piles settled to the bottom. Specifically, the conveying screw 61 can adopt a single-head or multi-head screw structure, and the pitch between the screw blades is designed to be 30-50 mm according to the size of the lead piles to ensure effective grabbing. The lower end of the conveying screw 61 can be provided with a tapered closing structure to enhance the gathering effect of the accumulated lead piles. As a preferred embodiment, the surface of the conveying screw 61 can be covered with a wear-resistant coating, such as tungsten carbide or ceramic material, to prolong the service life. The rotating speed of the conveying screw 61 is controlled within the range of 10-30 rpm, and stepless speed regulation is achieved through a variable frequency motor to adapt to different material conveying requirements. The screw conveyor 6 realizes continuous collection and lifting of the lead piles through mechanical rotation. The design that the conveying screw 61 extends to the bottom of the hopper 21 ensures full-area coverage of the settled lead piles, avoiding the omission problem existing in traditional manual salvage. The continuous pushing action of the screw blades overcomes the accumulation blockage of the lead piles due to self-weight, realizing stable conveying. Compared with the gravity flow method, this technical solution significantly improves the conveying efficiency through active mechanical conveying, and is especially suitable for directional transfer of high-density materials. The contact pressure between the lead piles and the screw blades during the conveying process can promote the peeling of the attached impurities, further improving the sorting purity.

[0041] Specifically, the screw conveyor 6 further comprises a drive assembly 62, which includes a drive motor 621 and a speed reducer 622. The output shaft of the speed reducer 622 is rotatably positioned on the frame 1 through a bearing 623 and is connected with the upper end of the conveying screw rod 61. The drive motor 621 can be an AC servo motor or a stepping motor, and the rated power range is preferably 0.5-3kW, and the rotational speed adjustment accuracy reaches ±1rpm. The speed reducer 622 can be a planetary gear reducer or a worm and gear reducer, and the speed reduction ratio range is recommended to be 10:1 to 50:1. The bearing 623 adopts an angular contact ball bearing or a tapered roller bearing, and the inner diameter is matched with the output shaft of the speed reducer 622 in interference, and the outer diameter is matched with the bearing seat of the frame 1 in clearance, and the axial clearance is controlled within the range of 0.05-0.1mm. As an alternative, the drive motor 621 and the speed reducer 622 can be integrated into an integrated speed reducer motor, and the output shaft is directly machined with a key groove and connected with the flange of the conveying screw rod 61. The bearing 623 support structure can be replaced by a combination of a bidirectional thrust bearing and a deep groove ball bearing, which respectively bear axial load and radial load. The technical scheme provides adjustable speed rotary power through the drive motor 621, reduces speed and increases torque through the speed reducer 622, and then transmits power to the conveying screw rod 61 through the output shaft precisely positioned by the bearing 623. Among them, the speed reducer 622 matches the load characteristics of the conveying screw rod 61, avoiding out-of-step due to instantaneous overload. The bearing 623 support eliminates axial movement, ensuring that the conveying screw rod 61 remains coaxially rotating in the inclined chamber. The direct connection mode reduces the energy loss of the intermediate transmission link. Compared with the traditional chain transmission or belt drive mode, this structure has three advantages: first, the closed-loop control system can realize real-time adjustment of the conveying speed, adapting to the conveying needs of lead piles of different particle sizes. Second, the rigid transmission system avoids slipping, ensuring that the repeat precision error of the lead pile conveying position is less than ±2mm. Third, the modular design is convenient for maintenance, and the motor 621 or the speed reducer 622 can be individually disassembled and replaced without affecting the overall frame 1 structure.

[0042] As Figure 4 and 6As shown, the lower end of the conveying screw 61 is provided with a rotating notch 611, and the lower end of the conveying chamber 11 is provided with a rotating shaft or positioning shaft 112 which is inserted into the rotating notch 611 to define the rotating track of the conveying screw 61. A fitting gap of 0.1-0.5mm is reserved between the inner wall of the rotating notch 611 and the rotating shaft / positioning shaft 112, which ensures axial freedom and limits radial deviation. The rotating shaft is preferably made of hard alloy material, and the positioning shaft 112 can adopt a stepped shaft structure with a self-lubricating coating. As a preferred embodiment, a wear-resistant bushing, such as polytetrafluoroethylene or copper-based composite material, is arranged at the bottom of the rotating notch 611 to reduce friction loss. Specifically, the fixing method of the rotating shaft and the conveying chamber 11 includes welding, threaded connection or interference fit, and the positioning shaft 112 can be axially locked by a detachable end cover. This technical solution forms a stable rotating pair structure through mechanical insertion fitting, in which the constraint effect of the rotating notch 611 and the rotating shaft / positioning shaft 112 can be decomposed into axial limiting and radial guiding dual functions. In the inclined conveying condition, when the conveying screw 61 is subjected to the action of the gravity component force, the lower end insertion structure can effectively suppress the elastic deformation of the middle part of the screw, avoiding the trajectory deviation caused by the increase of deflection. Compared with the traditional screw conveyor which relies only on the upper end driving, this design optimizes the single-point support to a three-point positioning system, which is specifically manifested as: the upper end realizes power input and radial fixation through the output shaft of the speed reducer 622, the middle part is provided with rotating support by the bearing 623, and the lower end limits the swing amplitude through the insertion structure. The spatial positioning network formed thereby makes the conveying screw 61 maintain axial consistency in the full-length range, solving the problem of trajectory instability caused by the gravity component force in the inclined chamber. Experimental data show that the radial runout of the conveying screw 61 with this structure can be controlled within ±0.3mm, which is reduced by about 70% compared with the design without lower end positioning, significantly improving the continuity and position accuracy of lead pile conveying.

[0043] Further, the rack 1 comprises a front leg 12 and a rear leg 13, the height difference between the front leg 12 and the rear leg 13 makes the rack 1 in an inclined arrangement, and the inclination angle of the conveying chamber 11 is consistent with the inclination angle of the rack 1. The height difference between the front leg 12 and the rear leg 13 can be achieved by adjusting the length of the leg or adding a pad, and in specific implementation, a threaded adjusting structure, a hydraulic lifting mechanism or a stepped plug-in structure can be used. The inclination angle matching of the conveying chamber 11 can be achieved in two ways: one is to directly fix the conveying chamber 11 on the inclined rack 1, so that it naturally inherits the inclination angle of the rack 1. The second is to calibrate the angle measuring instrument when the conveying chamber 11 is installed, to ensure that the inclination angle is consistent with the rack 1. As a preferred embodiment, the height of the front leg 12 can be adjusted in the range of 50-200mm, and the rear leg 13 is fixed in height, thereby forming an inclination angle of the rack 1 of 5°-15°. The technical scheme realizes the overall inclination of the rack 1 through the height difference between the front leg 12 and the rear leg 13, and synchronously matches the inclination angle of the conveying chamber 11. Specifically, the flow direction of the material in the conveying chamber 11 cooperates with the direction of gravity, and the consistency of the inclination angle eliminates the accumulation or poor conveying of the material caused by the angle deviation. Compared with the prior art, the design makes the lead pile conveying process rely on gravity sliding without additional power, which not only reduces the load of the screw conveyor 6, but also avoids the material backflow caused by the angle mismatch.

[0044] The above battery cover and lead pile automatic sorting device, the sorting process is as follows:

[0045] 1. Material input and preliminary layering:

[0046] - The broken battery cover mixture enters the bottom of the hydraulic sorting hopper through the input pipeline;

[0047] - The plastic sheet (density 1.5g / cm 3 ) floats to the surface of the solution due to buoyancy, and the lead pile (density 11.4g / cm 3 ) quickly settles to the bottom of the hopper.

[0048] 2. Water power enhanced separation:

[0049] - The circulating water flow driving mechanism is started, and the water pump pumps the solution into the circulating flow channel to form a directional water flow with a flow rate of 1.5m / s from bottom to top;

[0050] - The water flow drives the plastic sheet floating along the inclined direction of the hopper, and finally discharges from the top overflow port to the plastic collection tank;

[0051] - The water power scouring action removes the plastic residues attached to the surface of the lead pile, improving the purity of the lead pile.

[0052] 3. Lead pile conveying and collection:

[0053] - the lead stubs settled at the bottom of the hopper enter the inclined conveying chamber through the opening;

[0054] - the conveying screw of the screw conveyor rotates continuously at a speed of 15 rpm, pushing the lead stubs upwards along the inclined chamber;

[0055] - the lead stubs fall into the collection bin through the discharge port, completing the automatic recovery.

[0056] 4. Continuous operation:

[0057] - the input, sorting and conveying links are seamlessly connected, and 1.5 tons of mixture can be processed per hour;

[0058] - the solution circulation system filters impurities in real time, and maintains the stability of the density of the sorting medium.

[0059] Based on the above automatic sorting device and steps, the sorting efficiency achieved is:

[0060] - the lead stub recovery rate is ≥98%, the plastic piece purity is ≥96%, and the sorting efficiency is increased by 85% compared with manual sorting;

[0061] - when the water flow rate is 1.5 m / s, the plastic piece discharge time is shortened to within 30 seconds.

[0062] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments without departing from the principles and purposes of the present application within the scope of the present application.

Claims

1. An automatic sorting device for battery caps and lead stakes, characterized in that, include: - Frame (1), with an inclined conveying chamber (11) on its upper part; - A sorting container, fixed on the frame (1), includes a hydraulic sorting hopper (21), the hydraulic sorting hopper (21) contains a solution with a density greater than that of the battery cover plastic sheet and less than that of the lead pile, and the bottom of the hydraulic sorting hopper (21) is connected to the conveying chamber (11); - A circulating water flow drive mechanism is installed inside the sorting container to generate directional water flow in the hydraulic sorting hopper (21); - Input pipe (4) is connected to the lower end of the hydraulic sorting hopper (21) or the conveying chamber (11) for feeding in the crushed battery cover mixture; - The discharge port (5) is located at the upper end of the conveying chamber (11); - A conveying device is installed in the conveying chamber (11) for conveying lead piles with a density greater than that of the solution from the bottom of the hydraulic separation hopper (21) to the discharge port (5).

2. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The inlet end of the input pipe (4) is connected to the bottom of the hydraulic sorting hopper (21) or the lower end of the conveying chamber (11).

3. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The circulating water flow drive mechanism includes a water pump and a preset circulating channel. The water pump forms a directional flow of water power in the hydraulic sorting hopper (21) through the circulating channel (32).

4. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The hydraulic sorting hopper (21) has an inclination angle of 30°-60°, and an overflow port (211) is provided at the lower end of its inclination direction. The overflow port (211) is connected to the conveying chamber (11).

5. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The conveying device is a screw conveyor, including a rotating conveying screw (61) that extends to the bottom of the hydraulic sorting hopper (21) to collect and convey lead piles that have settled to the bottom.

6. The automatic sorting device for battery caps and lead stakes according to claim 5, characterized in that: The screw conveyor also includes a drive assembly (62), which includes a drive motor (621) and a reducer (622). The output shaft of the reducer (622) is rotatably positioned on the frame (1) via a bearing (623) and connected to the upper end of the conveying screw (61).

7. The automatic sorting device for battery caps and lead stakes according to claim 6, characterized in that: The lower end of the conveying screw (61) is provided with a rotating slot (611), and the lower end of the conveying chamber (11) is provided with a rotating shaft or positioning shaft (112). The rotating shaft or positioning shaft (112) is inserted into the rotating slot (611) to limit the rotation trajectory of the conveying screw (61).

8. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The frame (1) includes a front support leg (12) and a rear support leg (13). The height difference between the front support leg (12) and the rear support leg (13) causes the frame (1) to be arranged at an angle. The tilt angle of the conveying chamber (11) is the same as the tilt angle of the frame (1).

9. The automatic sorting device for battery caps and lead stakes according to claim 1, characterized in that: The density of the solution is 1.6-2.0 g / cm³.

10. The automatic sorting device for battery caps and lead stakes according to claim 9, characterized in that: The density of the solution is 1.8 g / cm³.

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