Automatic batching device for electrolyte

Abstract

The utility model discloses an automatic electrolyte batching device which comprises a mixed reaction kettle, a plurality of material containing tanks are arranged above the mixed reaction kettle, a reaction kettle feeding pipe is arranged at the top of the mixed reaction kettle, and each material containing tank is communicated with the reaction kettle feeding pipe through a feeding branch pipe. A branch pipe flowmeter and a branch pipe control valve are arranged on each feeding branch pipe, a reaction kettle discharging pipe is arranged at the bottom of the mixed reaction kettle, a discharging flowmeter, a shield pump, a turbidity detector and a density detector are sequentially arranged on the reaction kettle discharging pipe in the material flowing direction, and the reaction kettle discharging pipe is connected with a finished product sample tank. The utility model has the advantages that the production efficiency is greatly improved, and the possibility of contact between workers and chemical materials is greatly reduced, which is beneficial to the health of the workers. In addition, the quality of the electrolyte product is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery electrolyte production equipment, in particular to an electrolyte batching device. Background Art

[0002] The preparation of battery electrolyte involves uniformly mixing three types of materials: solvent, salt, and additives. Currently, electrolyte mixing is primarily done manually by weighing and then adding ingredients, with manual sampling and testing required after mixing. This manual mixing method is inefficient and labor-intensive. It also places high demands on workers, and improper operation can easily affect product quality. Furthermore, workers inevitably come into contact with chemical materials during operation, which can negatively impact their health. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic dispensing device for electrolyte, which can greatly improve production efficiency and greatly reduce the contact between workers and chemical materials.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: an automatic dosing device for electrolyte, comprising a mixing reactor, a plurality of material holding tanks are arranged above the mixing reactor, a reactor feed pipe is arranged on the top of the mixing reactor, each material holding tank is connected to the reactor feed pipe through a feed branch pipe, each feed branch pipe is provided with a branch flowmeter and a branch control valve, a reactor discharge pipe is provided at the bottom of the mixing reactor, and a discharge flowmeter, a shielded pump, a turbidity detector, and a density detector are arranged on the reactor discharge pipe in sequence along the material flow direction, and the reactor discharge pipe is connected to the finished product sample tank.

[0005] Furthermore, in the aforementioned automatic dosing device for electrolyte, the material holding tanks include two, namely a first material holding tank and a second material holding tank. The first material holding tank is connected to the reactor feed pipe through a first feed branch pipe, and a first branch flowmeter and a first branch control valve are provided on the first feed branch pipe; the second material holding tank is connected to the reactor feed pipe through a second feed branch pipe, and a second branch flowmeter and a second branch control valve are provided on the second feed branch pipe.

[0006] Furthermore, in the aforementioned automatic dosing device for electrolyte, a stirring shaft is provided in the mixing reactor, the stirring shaft is driven by a stirring motor, the stirring motor is provided on the top of the mixing reactor, and a plurality of stirring impellers are provided at intervals on the stirring shaft.

[0007] Furthermore, in the aforementioned automatic dosing device for electrolyte, a material reflux pipe is provided on the discharge pipe of the reactor, the material reflux pipe is connected to the mixing reactor, a reflux pipe control valve is provided on the material reflux pipe, and a discharge control valve is provided on the discharge pipe of the reactor between the material reflux pipe and the finished product sample tank.

[0008] Furthermore, in the aforementioned automatic electrolyte dosing device, each branch pipe control valve, reflux pipe control valve, and discharge control valve is a pneumatic control valve.

[0009] Furthermore, the aforementioned automatic dosing device for electrolyte also includes a PLC control cabinet, and all branch pipe control valves, reflux pipe control valves, discharge control valves, branch pipe flow meters, discharge flow meters, shielded pumps, turbidity detectors, and density detectors are signal-connected to the PLC control cabinet.

[0010] The advantages of the present invention are: First, the production efficiency of electrolyte configuration is greatly improved, and the possibility of contact between workers and chemical materials during the entire preparation process is greatly reduced, which is extremely beneficial to the health of workers. Second, the condition of the mixed materials is monitored by a turbidity detector and a density detector to judge the mixing condition of the materials, which allows the standards of each material mixing to be consistent, thereby greatly improving the consistency and uniformity of the electrolyte product, thereby improving the quality of the electrolyte product and avoiding the uncertainty of manual mixing. Third, the controllability of the entire configuration process is good, and the staff can control the material feeding process, stirring process and output process through the PLC control cabinet, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an automatic electrolyte dispensing device described in the utility model.

[0012] Figure 2 The utility model is a schematic diagram of the internal structure of a mixing reactor in an automatic electrolyte batching device. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0014] like Figure 1 、 Figure 2As shown, an automatic electrolyte dispensing device includes a mixing reactor 1, a plurality of material holding tanks disposed above the mixing reactor 1, and a reactor feed pipe 11 disposed on the top of the mixing reactor 1. Each material holding tank is connected to the reactor feed pipe 11 via a feed branch pipe, and each feed branch pipe is provided with a branch flowmeter and a branch control valve. In this embodiment, the material holding tanks include two, namely a first material holding tank 2 and a second material holding tank 3. The first material holding tank 2 is connected to the reactor feed pipe 11 via a first feed branch pipe 21, and the first feed branch pipe 21 is provided with a first branch flowmeter 211 and a first branch control valve 212; the second material holding tank 3 is connected to the reactor feed pipe 11 via a second feed branch pipe 31, and the second feed branch pipe 31 is provided with a second branch flowmeter 311 and a second branch control valve 312.

[0015] A reactor discharge pipe 12 is provided at the bottom of the mixing reactor 1. A discharge flow meter 4, a shielded pump 5, a turbidity detector 6, and a density detector 7 are sequentially provided on the reactor discharge pipe 12 along the material flow direction. The reactor discharge pipe 12 is connected to the finished product sample tank 8.

[0016] In order to improve the mixing uniformity of the materials, a stirring shaft 13 is provided in the mixing reactor 1 in this embodiment. The stirring shaft 13 is driven by a stirring motor 9, which is arranged at the top of the mixing reactor 1. A plurality of stirring impellers 131 are arranged at intervals on the stirring shaft 13. The stirring impellers 131 are arranged at intervals in the mixing reactor 1, and the number of stirring impellers 131 is greater than or equal to 3.

[0017] A material reflux pipe 14 is provided on the reactor discharge pipe 12, and the material reflux pipe 14 is connected to the mixing reactor 1. A reflux pipe control valve 141 is provided on the material reflux pipe 14, and a discharge control valve 121 is provided on the reactor discharge pipe 12 between the material reflux pipe 14 and the finished product sample tank 8.

[0018] In order to facilitate automatic control, the first branch pipe control valve 212, the second branch pipe control valve 312, the return pipe control valve 142, and the discharge control valve 121 are all pneumatic control valves.

[0019] The automatic dosing device for the electrolyte described in this embodiment also includes a PLC control cabinet 9, and the first branch control valve 212, the second branch control valve 312, the reflux pipe control valve 142, the discharge control valve 121, the first branch flowmeter 211, the second branch flowmeter 311, the discharge flowmeter 4, the shielded pump 5, the turbidity detector 6, and the density detector 7 are all connected to the PLC control cabinet 9 by signal.

[0020] The working principle is as follows: when electrolyte configuration is required, the first branch control valve 212 and the second branch control valve 312 are opened, and the materials in the first material holding tank 2 and the second material holding tank 3 pass through the first feed branch 21 and the second feed branch 31 and the reactor feed pipe 11 into the mixing reactor 1. The first branch flowmeter 211 and the second branch flowmeter 311 measure the flow respectively. The flow information measured by the first branch flowmeter 211 and the second branch flowmeter 311 is fed back to the PLC control cabinet 9 in real time. When any one of the branch flowmeters 211 reaches the set value, the PLC control cabinet 9 controls the corresponding branch control valve to close, so that the materials in the two material holding tanks will be fed in proportion to ensure that the component ratio in the electrolyte meets the product requirements.

[0021] The materials entering the mixing reactor 1 are mixed uniformly under the stirring of the stirring impeller 131. The purpose of providing three or more stirring impellers 131 is to ensure that the materials in the entire mixing reactor 1 can be fully mixed, thereby greatly improving the uniformity of mixing.

[0022] The material in the mixing reactor 1 first flows from the reactor discharge pipe 12 through the discharge flowmeter 4, the shielded pump 5, the turbidity detector 6, and the density detector 7, and then flows back into the mixing reactor 1 through the material reflux pipe 14. In this state, the reflux pipe control valve 141 is open and the discharge control valve 121 is closed. The turbidity of the material is detected by the turbidity detector 6, and the density of the material is detected by the density detector 7. The information monitored by the turbidity detector 6 and the density detector 7 are fed back to the PLC control cabinet 9. When the PLC control cabinet determines that the turbidity and density meet the product requirements, it means that the materials in the mixing reactor 1 are mixed. At this time, the reflux pipe control valve 141 is closed and the discharge control valve 121 is opened. The mixed material flows from the reactor discharge pipe 12 through the discharge flowmeter 4, the shielded pump 5, the turbidity detector 6, the density detector 7, and the discharge control valve 121 to enter the finished product sample tank 8 for storage.

[0023] As can be seen from the above, the advantages of the present invention are: First, the production efficiency of electrolyte configuration is greatly improved, and the possibility of contact between staff and chemical materials in the entire preparation process is greatly reduced, which is extremely beneficial to the health of staff. Second, the condition of the mixed materials is monitored by the turbidity detector 6 and the density detector 7 to judge the mixing condition of the materials, which enables the standards of each mixing of the materials to be consistent, thereby greatly improving the consistency and uniformity of the electrolyte product, thereby improving the quality of the electrolyte product and avoiding the uncertainty of manual configuration. Third, the controllability of the entire configuration process is good, and the staff can control the feeding process, stirring process and output process of the materials through the PLC control cabinet 9, which greatly improves work efficiency.

Claims

1. An automatic electrolyte dispensing device, comprising a mixing reactor with a plurality of material holding tanks disposed above the mixing reactor, characterized in that: A reactor feed pipe is provided on the top of the mixing reactor. Each material holding tank is connected to the reactor feed pipe through a feed branch pipe. Each feed branch pipe is provided with a branch flowmeter and a branch control valve. A reactor discharge pipe is provided at the bottom of the mixing reactor. The reactor discharge pipe is provided with a discharge flowmeter, a shielded pump, a turbidity detector, and a density detector in sequence along the material flow direction. The reactor discharge pipe is connected to the finished product sample tank.

2. The automatic dispensing device for electrolyte according to claim 1, characterized in that: The material holding tanks include two, namely the first material holding tank and the second material holding tank. The first material holding tank is connected to the reactor feed pipe through a first feed branch pipe, and a first branch flowmeter and a first branch control valve are provided on the first feed branch pipe; the second material holding tank is connected to the reactor feed pipe through a second feed branch pipe, and a second branch flowmeter and a second branch control valve are provided on the second feed branch pipe.

3. The automatic dispensing device for electrolyte according to claim 1 or 2, characterized in that: A stirring shaft is provided in the mixing reactor, and the stirring shaft is driven by a stirring motor. The stirring motor is provided on the top of the mixing reactor, and a plurality of stirring impellers are provided on the stirring shaft at intervals.

4. The automatic dispensing device for electrolyte according to claim 1 or 2, characterized in that: The reactor discharge pipe is provided with a material reflux pipe, the material reflux pipe is connected to the mixing reactor, the material reflux pipe is provided with a reflux pipe control valve, and the reactor discharge pipe between the material reflux pipe and the finished product sample tank is provided with a discharge control valve.

5. The automatic dispensing device for electrolyte according to claim 4, characterized in that: Each branch pipe control valve, return pipe control valve and discharge control valve adopts a pneumatic control valve.

6. The automatic dispensing device for electrolyte according to claim 5, characterized in that: It also includes a PLC control cabinet, and all branch pipe control valves, return pipe control valves, discharge control valves, branch pipe flow meters, discharge flow meters, shielded pumps, turbidity detectors, and density detectors are connected to the PLC control cabinet signal.

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