Lithium battery crushing production line efficiency control method

Abstract

The present invention relates to a method for controlling the efficiency of a lithium battery crushing production line. In a programmable logic controller (PLC), the weight of an empty filter basket is set as G1, the weight of a fully loaded filter basket is set as G2, and the flow rate of a fully loaded oil cylinder through a metering pump is set as V. The PLC collects a weight value G3 of a weighing system, and then obtains a flow rate Vt set for the metering pump. The PLC controls the flow rate of the metering pump according to the calculated Vt, thereby controlling the size of a discharge port opening. The larger the weighed weight value G3, the smaller the discharge port opening, and vice versa. This ensures that the weight of batteries entering the crusher is relatively balanced, thereby ensuring that the equipment operates under a relatively balanced load, effectively improving the working efficiency of the crusher, reducing energy consumption, and increasing the service life of the crusher.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery crushing production lines, and in particular to a method for controlling the performance of lithium battery crushing production lines. Background Art

[0002] After recycling used lithium batteries, they must first be placed in a NaCl solution for short-circuit discharge before being crushed and screened. Only after the battery's charge is discharged below a safe voltage can it be placed on the crushing line for crushing. If the battery voltage is higher than the safe voltage, a flash explosion may occur during the crushing process, making it prone to safety accidents. After the battery is discharged, it is manually fished out and transported to the conveyor belt of the crushing line. Manual loading of the batteries into the crusher causes uneven weight, resulting in uneven operation of the crusher and an intangible increase in the energy consumption of the crushing line. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for controlling the efficiency of a lithium battery crushing production line.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for controlling the performance of a lithium battery crushing production line, wherein the crushing production line includes a filter basket, a discharge chute, a loading mechanism, a weighing system, a conveyor belt, a crusher, and a PLC;

[0006] The discharge chute is located above the input end of the conveyor belt, and the output end of the conveyor belt extends to the inlet end of the crusher; a discharge door is provided at the discharge port at the bottom of the discharge chute, and the discharge door is driven by a discharge cylinder to change the size of the discharge port opening, and the discharge cylinder is actuated by connecting a metering pump;

[0007] The loading mechanism is located on the side of the input end of the conveyor belt and is used to lift and flip the filter basket so that the batteries inside the filter basket are poured into the discharge chute;

[0008] The weighing system includes a weighing sensor placed on the hook slot of the feeding mechanism, and the weighing system is used to weigh the weight of the filter basket and transmit it to the PLC;

[0009] The efficiency control method is as follows: in the PLC, the weight of the empty filter basket is set as G1, the weight of the filter basket fully loaded with batteries is set as G2, and the flow rate of the metering pump during the fully loaded stroke of the oil cylinder is set as V;

[0010] The PLC collects the weight value G3 of the weighing system, and the flow rate Vt set by the metering pump is:

[0011]

[0012] Among them, M is a constant value;

[0013] The PLC controls the flow of the metering pump according to the calculated Vt, thereby controlling the size of the discharge port opening. The larger the weighed weight value G3 is, the smaller the discharge port opening is, and vice versa.

[0014] Furthermore, a time T is set inside the PLC. If the weighing system does not detect weight data and T time has passed, the conveyor belt and the crusher stop working.

[0015] Furthermore, the feeding mechanism consists of two sets, and the two sets of feeding mechanisms are arranged at intervals on the side of the input end of the discharge chute, and each set of feeding mechanism includes a support column, a lifting arm, a lifting cylinder, an adjusting arm and a hook plate; the support column is fixed on the side of the input end of the discharge chute; the rear end of the lifting arm is hinged to the support column, and the front end of the lifting arm is hinged to the rear end of the hook plate; the front end of the lifting cylinder is hinged to the support column, and the rear end of the lifting cylinder is hinged to the front end of the lifting arm; one end of the adjusting arm is hinged to the support column, and the other end of the adjusting arm is hinged to the rear end of the hook plate; the hook groove is located at the front end of the hook plate.

[0016] Furthermore, a blocking arm is fixed between the rear ends of the hook plates of the two sets of feeding mechanisms.

[0017] The present invention adopts the above technical solution, which has the following beneficial effects: through PLC programming calculation, by weighing the filter basket, the size of the discharge port opening can be controlled. The larger the weighing value, the smaller the discharge port opening, and vice versa. This ensures that the weight of the batteries entering the crusher is relatively balanced, thereby ensuring that the equipment operates under a relatively balanced load, effectively improving the working efficiency of the crusher, reducing energy consumption and increasing the service life of the crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 This is a schematic diagram of the crushing production line of the present invention;

[0020] Figure 2 It is a schematic diagram of the feeding mechanism in the present invention. DETAILED DESCRIPTION

[0021] like Figure 1-2 As shown, the lithium battery crushing production line efficiency control method of the present invention includes a filter basket 1, a discharge chute 2, a feeding mechanism 4, a weighing system 3, a conveyor belt 5, a crusher 6 and a PLC;

[0022] The discharge chute 2 is located above the input end of the conveyor belt 5, and the output end of the conveyor belt 5 extends to the inlet end of the crusher 6. The discharge port at the bottom of the discharge chute 2 is provided with a discharge door 21. The discharge door 21 is driven by a discharge cylinder 22 to change the size of the discharge port opening. The discharge cylinder 22 is actuated by a metering pump.

[0023] The feeding mechanism 4 is located on the side of the input end of the conveyor belt 5 and is used to lift and flip the filter basket 1 so that the batteries inside the filter basket 1 can be poured into the discharge chute 2. There are two sets of feeding mechanisms 4, each of which is spaced apart on the side of the input end of the discharge chute 2. Each set of feeding mechanisms 4 includes a support column 41, a lifting arm 42, a lifting cylinder 43, an adjusting arm 44, and a hook plate 45. The support column 41 is fixed to the side of the input end of the discharge chute 2. The rear end of the lifting arm 42 is hinged to the support column 41, and the front end of the lifting arm 42 is hinged to the rear end of the hook plate 45. The front end of the lifting cylinder 43 is hinged to the support column 41, and the rear end of the lifting cylinder 43 is hinged to the front end of the lifting arm 42. One end of the adjusting arm 44 is hinged to the support column 41, and the other end is hinged to the rear end of the hook plate 45. The front end of the hook plate 45 is provided with a hook groove. A blocking arm 46 is fixed between the rear ends of the hook plates 45 of the two feeding mechanisms 4. When the lifting cylinder 43 is actuated, the hook plate 45 of the loading mechanism 4 engages the suspension rod 1 of the filter basket 1, lifting and flipping the filter basket 1 to complete the loading process. The other end of the filter basket 1 presses against the stop arm 46 of the loading mechanism 4, ensuring the stability of the filter basket 1 during the lifting process. A safety hook 47 is pivotally connected to the lower hook portion of the hook plate 45. The function of the safety hook 47 is that the safety hook 47 rotates around its own pin. As the loading mechanism 4 rises, the weight of the safety hook 47 rotates to engage the suspension rod 13 of the filter basket 1, preventing the filter basket 1 from sliding.

[0024] The weighing system 3 includes a weighing sensor placed on the hook slot of the feeding mechanism 4. The weighing system 3 is used to weigh the weight of the filter basket 1 and transmit it to the PLC;

[0025] The efficiency control method is as follows: in the PLC, the weight of the empty filter basket 1 is set as G1, the weight of the filter basket 1 fully loaded with batteries is set as G2, and the flow rate of the metering pump when the discharge cylinder 22 is fully loaded is set as V;

[0026] The PLC collects the weight value G3 of the weighing system 3, and the flow rate Vt set by the metering pump is:

[0027]

[0028] Here, M is a fixed value to prevent the discharge port from closing when fully loaded. By changing the value of M, the minimum opening of the discharge port can be changed, thereby controlling the speed of lithium battery feeding.

[0029] The PLC controls the flow of the metering pump according to the calculated Vt, thereby controlling the size of the discharge port opening. The larger the weighed weight value G3 is, the smaller the discharge port opening is, and vice versa.

[0030] A time T is set inside the PLC. If the weighing system 3 does not detect weight data and the time T has passed, the conveyor belt 5 and the crusher 6 stop working, thereby reducing the equipment operation time and lowering energy consumption.

[0031] The implementation of the present invention is described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are illustrative rather than limiting the present invention. Those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and description of the present invention.

Claims

1. A lithium battery crushing production line performance control method, characterized by: The crushing production line includes a filter basket, a discharge chute, a loading mechanism, a weighing system, a conveyor belt, a crusher and a PLC; The discharge chute is located above the input end of the conveyor belt, and the output end of the conveyor belt extends to the inlet end of the crusher; a discharge door is provided at the discharge port at the bottom of the discharge chute, and the discharge door is driven by a discharge cylinder to change the size of the discharge port opening, and the discharge cylinder is actuated by connecting a metering pump; The feeding mechanism is located on the side of the input end of the conveyor belt, and is used to lift and flip the filter basket so that the batteries inside the filter basket are poured into the discharge chute; the feeding mechanism consists of two sets, and the two sets of feeding mechanisms are arranged at intervals on the side of the input end of the discharge chute, and each set of feeding mechanisms includes a support column, a lifting arm, a lifting cylinder, an adjusting arm and a hook plate; the support column is fixed on the side of the input end of the discharge chute; the rear end of the lifting arm is hinged to the support column, and the front end of the lifting arm is hinged to the rear end of the hook plate; the front end of the lifting cylinder is hinged to the support column, and the rear end of the lifting cylinder is hinged to the front end of the lifting arm; one end of the adjusting arm is hinged to the support column, and the other end of the adjusting arm is hinged to the rear end of the hook plate; the hook groove is located at the front end of the hook plate; The weighing system includes a weighing sensor placed on the hook slot of the feeding mechanism, and the weighing system is used to weigh the weight of the filter basket and transmit it to the PLC; The efficiency control method is as follows: in the PLC, the weight of the empty filter basket is set as G1, the weight of the filter basket fully loaded with batteries is set as G2, and the flow rate of the metering pump during the fully loaded stroke of the oil cylinder is set as V; The PLC collects the weight value G3 of the weighing system, and the flow rate Vt set by the metering pump is: ； Among them, M is a constant value; The PLC controls the flow of the metering pump according to the calculated Vt, thereby controlling the size of the discharge port opening. The larger the weighed weight value G3 is, the smaller the discharge port opening is, and vice versa.

2. The lithium battery crushing production line efficiency control method according to claim 1, characterized in that: A time T is set inside the PLC. If the weighing system does not detect weight data and T time has passed, the conveyor belt and crusher stop working.

3. The lithium battery crushing production line efficiency control method according to claim 2, characterized in that: A blocking arm is fixed between the rear ends of the hook plates of the two sets of feeding mechanisms.

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