Direct recycling and regenerating device for waste lithium iron phosphate battery

Abstract

The utility model provides a waste lithium iron phosphate battery direct recycling and regenerating device which comprises a rotating barrel, a closed box is arranged on the lower side of the rotating barrel, a fan is arranged on the left side of the closed box, and when the closed box sinks, the closed box is communicated with the fan and blows materials into an induction module. The sensing module is arranged on the right side of the closed box and used for sensing dust, a storage tank is arranged at the upper end of the sensing module, a sulfuric acid solution with the concentration of 2 mol / l is stored in the storage tank, and when the sensing module senses the dust, the sulfuric acid solution in the storage tank flows out to dissolve the dust; a heating box is arranged below the storage tank, the storage tank is connected with the heating box through a funnel, a spray head is arranged on the funnel, and the automatic recycling device has the advantages of being automatic in recycling and capable of saving manpower.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling and regeneration, in particular to a device for directly recycling and regenerating waste lithium iron phosphate batteries. Background Art

[0002] With the rapid development of the new energy vehicle industry, a large number of waste power batteries are scrapped, which is bound to cause a huge waste of resources and serious environmental pollution. Therefore, from the perspectives of reducing costs, protecting the environment and improving resource utilization, an integrated and automated recycling device for recycling waste lithium iron phosphate battery positive electrode materials is designed and manufactured to recycle waste lithium iron phosphate power batteries, which is of great significance for achieving the sustainable development of my country's new energy electric vehicle industry.

[0003] As far as the current recycling of waste lithium iron phosphate is concerned, no matter what method is used, it is necessary to use a variety of devices in combination to complete the recycling of waste lithium iron phosphate. A large amount of manual operation is required, such as manually collecting the crushed material powder, adding acid solution to the collected powder for acid leaching, and after the acid leaching is completed, a manual pipetting operation is required, and then the lithium, iron, phosphorus, and carbon elements are manually supplemented, and finally the recycling is completed manually. In the entire recycling process, it is necessary to transfer back and forth between various devices, and a large amount of manual participation is required. Not only is the energy consumption huge, the operation is cumbersome, the labor input is large, and the potential risk of manual injury is very high.

[0004] Based on the above reasons, this design proposes a direct recycling and regeneration device for waste lithium iron phosphate batteries. Summary of the invention

[0005] The purpose of the utility model is to provide a direct recycling and regeneration device for waste lithium iron phosphate batteries. The purpose is to overcome the shortcomings of existing recycling devices and provide a model of a new type of recycling device, which has the advantages of integrated recycling and automated recycling.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through such a technical scheme: a direct recycling and regeneration device for waste lithium iron phosphate batteries, comprising a rotating barrel, a closed box is arranged on the lower side of the rotating barrel, a fan is arranged on the left side of the closed box, the closed box is connected with the fan when it sinks and blows the material into the sensing module, the sensing module is arranged on the right side of the closed box, the sensing module is used to sense dust, a storage tank is arranged on the upper end of the sensing module, 2 mol / l sulfuric acid solution is stored in the storage tank, when the sensing module senses dust, the sulfuric acid solution in the storage tank flows out to dissolve the dust, a heating box is arranged under the storage tank, the storage tank and the heating box are connected by a funnel, and a nozzle is arranged on the funnel.

[0007] Furthermore, the rotation speed of the rotating barrel is 300-600 revolutions per minute.

[0008] Furthermore, the temperature in the heating box can be adjusted within a range of 300-1000 degrees Celsius.

[0009] Beneficial Effects

[0010] The recycling process of the utility model hardly requires human intervention, thus realizing the automation of recycling. At the same time, since there is no human intervention, the problem of human injury during the recycling process is solved. Since the device can complete the entire recycling process, the complexity of the recycling operation is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0012] In the figure: 1. rotating barrel, 2. closing box, 3. induction module, 4. heating box, 5. fan, 6. storage tank, 7. funnel. DETAILED DESCRIPTION

[0013] The present invention is further explained in detail below in conjunction with the accompanying drawings of the specification, but the protection scope of the present invention is not limited thereto. Example

[0014] like Figure 1 As shown, a device for directly recycling and regenerating waste lithium iron phosphate batteries is provided. The disassembled batteries are placed in a rotating barrel 1, and grinding balls are added thereto. The batteries are ground into powder by high-speed rotation at 300 to 600 revolutions per minute. The powdered materials fall into a closed box 2 below. When the material on the bottom reaches 50 grams, the bottom of the closed box 2 sinks. The bottom of the sunken closed box 2 is connected to the fan 5 on the left to form a passage. At this time, the bottom of the sunken closed box 2 acts as a switch to connect the fan 5 to a power source, so that the fan is started and all the powder deposited at the bottom is blown into the induction module 3.

[0015] The induction module 3 contains a dust induction device. The top of the module acts as a switch between the power supply and the module. When the top is opened, the device is powered off. After sensing the dust, the channel connected to the storage tank 6 (storing 2 mol / l sulfuric acid solution) will open, and the liquid in the storage tank 6 will automatically flow out. When the dust is no longer blown in, the channel will close. After dissolving the dust, open the lid to perform ICP testing on the dissolved solution, and at the same time, supplement the iron source, lithium source, phosphorus source, and carbon source to make iron: lithium: phosphorus: carbon = 0.95-1.05:1:1:0.08. Next, turn on the heating box switch first to make the temperature in the heating box reach 300-1000 degrees Celsius, then open the valve to allow the solution to flow through the funnel 7 to the nozzle set on the funnel, turn on the nozzle switch to spray the solution into the heating box 4 below, and precipitate the regenerated lithium iron phosphate through high-temperature evaporation of the solvent to complete the recovery.

[0016] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A direct recycling and regeneration device for waste lithium iron phosphate batteries, characterized in that: It includes a rotating barrel, a closed box is arranged on the lower side of the rotating barrel, a fan is arranged on the left side of the closed box, the closed box is connected with the fan when it sinks and blows the material into the sensing module, the sensing module is arranged on the right side of the closed box, the sensing module is used to sense dust, a storage tank is arranged on the upper end of the sensing module, 2 mol / l sulfuric acid solution is stored in the storage tank, when the sensing module senses dust, the sulfuric acid solution in the storage tank flows out to dissolve the dust, a heating box is arranged below the storage tank, the storage tank and the heating box are connected by a funnel, and a nozzle is arranged on the funnel.

2. A direct recycling and regeneration device for waste lithium iron phosphate batteries as claimed in claim 1, characterized in that: The rotating speed of the rotating barrel is 300-600 revolutions per minute.

3. A waste lithium iron phosphate battery direct recycling and regeneration device as claimed in claim 1, characterized in that: The temperature in the heating box can be adjusted within a range of 300-1000 degrees Celsius.

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