Battery crushing equipment

Abstract

The utility model provides battery crushing equipment, which comprises a liquid storage barrel, a shredder, a filter press and an alkali liquor box, the liquid storage barrel is connected with the alkali liquor box through a first pipeline, the filter press is connected with the alkali liquor box through a second pipeline, one end of the shredder is connected with the alkali liquor box through a third pipeline, and the other end of the shredder is connected with the alkali liquor box through a fourth pipeline. One end of the shredding machine is communicated with the liquid storage barrel, the other end of the shredding machine is communicated with the second pipeline through a fourth pipeline, the liquid storage barrel is used for storing alkali liquor, the shredding machine is used for soaking a battery in the alkali liquor and crushing the battery, and the filter press is used for carrying out solid-liquid separation treatment on circulating wastewater generated by the alkali liquor box; according to the utility model, the battery is crushed in an alkali liquor infiltration environment, so that the crushed battery has higher discharge efficiency, and meanwhile, the filter press is used for carrying out solid-liquid separation treatment on the generated circulating wastewater, so that the recovery rate of the battery is further improved.

Description

Technical Field

[0001] The utility model relates to the field of battery recycling, in particular to a battery crushing device. Background Art

[0002] Lithium batteries have high specific energy density (up to 600Wh / kg), stable discharge voltage, high open circuit voltage (3.67V), and an average annual self-discharge rate of less than 1% under storage conditions of 20℃±2℃. They can last up to 10 years under suitable storage conditions. They have been widely used in smart card meters (water, electricity, and gas meters), computer support power supplies, medical equipment, wireless communications, oil drilling, portable communication equipment, scientific research equipment, and military equipment.

[0003] However, existing lithium batteries are much more difficult to recycle than other lead-acid batteries. Not only are they difficult to discharge (especially primary lithium batteries), but they are also prone to smoke and fire when broken. The acidic substances inside them also cause great harm to the human body, equipment and environment. Utility Model Content

[0004] The purpose of the utility model is to provide a battery crushing equipment, which is used to improve the technical problem that the prior art is difficult to effectively recycle batteries.

[0005] In order to solve the above technical problems, the utility model provides a battery crushing equipment, including a liquid storage barrel, a shredder, a filter press and an alkali liquid tank, the liquid storage barrel is connected to the alkali liquid tank through a first pipeline, the filter press is connected to the alkali liquid tank through a second pipeline, one end of the shredder is connected to the alkali liquid tank through a third pipeline, and the other end of the shredder is connected to the second pipeline through a fourth pipeline;

[0006] Among them, the liquid storage barrel is used to store alkali solution; the shredder is used to immerse the batteries in alkali solution and crush the batteries; the filter press is used to perform solid-liquid separation on the circulating wastewater generated by the alkali solution tank.

[0007] Preferably, an alkali preparation device is provided in the liquid storage barrel, and the alkali preparation device includes a stirrer.

[0008] Preferably, a first liquid level meter and a first pH meter are also provided in the liquid storage barrel.

[0009] Preferably, the shredder comprises a crushing shell having a crushing cavity, the crushing cavity is connected to the third pipe and the fourth pipe respectively, and the crushing cavity is used to load the alkali solution and the disposable lithium battery.

[0010] Preferably, a negative pressure exhaust system is further provided above the shredder, the negative pressure exhaust system is connected to the crushing chamber, and an exhaust gas treatment device is further provided at one end of the negative pressure exhaust system away from the shredder.

[0011] Preferably, a second liquid level meter and a second pH meter are also provided in the alkali liquid tank.

[0012] Preferably, a first valve is installed on the first pipeline, a third valve is installed on the fourth pipeline, and a second valve is installed on the second pipeline.

[0013] Preferably, when the crushing equipment starts to crush the battery, the first valve and the second valve are both closed, the third valve is opened, and the shredder and the alkali solution tank are connected to form a closed loop through the third pipeline and the fourth pipeline.

[0014] Preferably, when the pH value of the circulating wastewater generated in the alkali liquid tank is 7, the first valve and the third valve are both closed, the second valve is opened, and the filter press performs solid-liquid separation treatment on the circulating wastewater.

[0015] Preferably, the crushing equipment further comprises a vacuum pump installed on the second pipeline, one end of the vacuum pump is connected to the alkali liquid tank through a pipeline, and the other end of the vacuum pump is respectively connected to the filter press and the shredder through pipelines.

[0016] The beneficial effects of the utility model are as follows: different from the prior art, the utility model provides a battery crushing equipment, including a liquid storage barrel, a shredder, a filter press and an alkali liquid tank, the liquid storage barrel is connected to the alkali liquid tank through a first pipe, the filter press is connected to the alkali liquid tank through a second pipe, one end of the shredder is connected to the alkali liquid tank through a third pipe, and the other end of the shredder is connected to the second pipe through a fourth pipe, wherein the liquid storage barrel is used to store alkali liquid, the shredder is used to soak the battery in the alkali liquid and crush the battery, and the filter press is used to perform solid-liquid separation treatment on the circulating wastewater generated by the alkali liquid tank; the utility model crushes the battery in an environment soaked in alkali liquid, so that the crushed battery has a higher discharge efficiency, and at the same time, the solid-liquid separation treatment is performed on the generated circulating wastewater by the filter press, thereby further improving the recovery rate of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the battery crushing equipment provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The technical solution of the present application is now described in conjunction with specific embodiments.

[0020] See also Figure 1 , Figure 1 The overall structure diagram of the battery crushing equipment 100 provided in the embodiment of the utility model; specifically, please refer to Figure 1 The utility model provides a battery crushing equipment 100, including a liquid storage barrel 10, a shredder 20, a filter press 30 and an alkali liquid tank 40, wherein the liquid storage barrel 10 is connected to the alkali liquid tank 40 through a first pipe 71, the filter press 30 is connected to the alkali liquid tank 40 through a second pipe 72, one end of the shredder 20 is connected to the alkali liquid tank 40 through a third pipe 73, and the other end of the shredder 20 is connected to the second pipe 72 through a fourth pipe 74;

[0021] The liquid storage barrel 10 is used to store alkali solution, the shredder 20 is used to immerse the battery in the alkali solution and shred the battery, and the filter press 30 is used to perform solid-liquid separation on the circulating wastewater generated by the alkali solution tank 40 .

[0022] In the embodiment of the utility model, the liquid storage barrel 10 is a high-position alkali liquid storage barrel, and an alkali preparation device is arranged in the liquid storage barrel 10, and the alkali preparation device includes a stirrer.

[0023] Specifically, the alkali preparation device contains water and caustic soda, and the stirrer mixes the water and caustic soda to form alkali solution.

[0024] Furthermore, the initial pH value of the alkali solution prepared by the alkali preparation device is greater than 10.

[0025] Specifically, a first liquid level meter and a first pH meter are also provided in the liquid storage barrel 10; the first liquid level meter is used to measure the volume of the alkali solution in the liquid storage barrel 10 in real time. When the alkali solution in the liquid storage barrel 10 is too little, the alkali preparation device starts to prepare the alkali solution so that the volume of the alkali solution in the liquid storage barrel 10 is kept within a reasonable range; the first pH meter is used to measure the pH value of the alkali solution in the liquid storage barrel 10 in real time. When the pH value of the alkali solution in the liquid storage barrel 10 is less than or equal to 10, the alkali preparation device starts to prepare the alkali solution so that the pH value of the alkali solution in the liquid storage barrel 10 is greater than 10.

[0026] Furthermore, a pH value greater than 10 helps to subsequently improve the discharge efficiency of the disposable lithium battery.

[0027] In the embodiment of the utility model, the shredder 20 includes a crushing shell having a crushing cavity, the crushing cavity is connected to the third pipe 73 and the fourth pipe 74 respectively, and the crushing cavity is used to load alkali solution and disposable lithium batteries.

[0028] Specifically, the disposable lithium battery is immersed in the alkali solution and crushed, and the alkali solution circulates between the alkali solution tank 40 and the crushing cavity through the third pipe 73 and the fourth pipe 74 .

[0029] Specifically, a negative pressure exhaust system is also provided above the shredder 20, and the negative pressure exhaust system is connected to the crushing chamber. An exhaust gas treatment device is also provided at one end of the negative pressure exhaust system away from the shredder 20; wherein the exhaust gas treatment device is used to absorb and treat the smoke generated by the disposable lithium battery during the crushing process to prevent pollution to the environment.

[0030] Furthermore, a second liquid level meter and a second pH meter are also provided in the alkali liquid tank 40; the second liquid level meter is used to measure the volume of the alkali liquid in the alkali liquid tank 40 in real time. When the alkali liquid in the alkali liquid tank 40 is too little, the alkali liquid in the liquid storage barrel 10 flows in to keep the volume of the circulating wastewater in the alkali liquid tank 40 and the crushing chamber within a reasonable range; the second pH meter is used to measure the pH value of the circulating wastewater in the alkali liquid tank 40 in real time. When the pH value of the alkali liquid in the alkali liquid tank 40 is equal to 7, the circulating wastewater in the alkali liquid tank 40 flows into the filter press 30, and the filter press 30 performs solid-liquid separation treatment on the circulating wastewater.

[0031] In the embodiment of the utility model, the first valve 51 is installed on the first pipeline 71 , the third valve 53 is installed on the fourth pipeline 74 , and the second valve 52 is installed on the second pipeline 72 .

[0032] In the embodiment of the utility model, the crushing equipment 100 also includes a vacuum pump 60 installed on the second pipeline 72, one end of the vacuum pump 60 is connected to the alkali liquid tank 40 through a pipeline, and the other end of the vacuum pump 60 is respectively connected to the filter press 30 and the shredder 20 through pipelines.

[0033] In the embodiment of the utility model, the filter press 30 is a mechanical device that uses a special filter medium to apply a certain pressure to an object to cause liquid to percolate out. It is a commonly used solid-liquid separation device.

[0034] In order to facilitate a better understanding of the embodiments of the present invention, the following describes in detail the use process of the embodiments of the present application:

[0035] Step 1: Place the disposable lithium battery in the shredder 20 .

[0036] Step 2: open the first valve 51 and close the second valve 52 and the third valve 53 respectively, so that the alkali liquid in the liquid storage barrel 10 flows into the alkali liquid tank 40 through the first pipe 71, measure the volume of the alkali liquid in the liquid storage barrel 10 by the first liquid level meter, and maintain the volume of the alkali liquid in the alkali liquid tank 40 within a reasonable range through the alkali preparation device.

[0037] Step three, open the third valve 53, and close the first valve 51 and the second valve respectively. The circulating pump allows the alkali solution in the alkali solution tank 40 to flow into the crushing chamber of the shredder 20 through the fourth pipe 74, so that the disposable lithium battery is immersed in the alkali solution for crushing (the pH value of the alkali solution is greater than 10 at this time). The alkali solution in the crushing chamber continuously reacts with the acidic electrolyte of the disposable lithium battery, and the generated circulating waste water flows back to the alkali solution tank 40 through the third pipe 73; at the same time, the smoke generated when the disposable battery is crushed is transported to the exhaust gas treatment device through the negative pressure exhaust system.

[0038] Step 4: When the pH value of the circulating wastewater measured by the second pH meter in the alkali liquid tank 40 is equal to 7, the shredder 20 stops shredding the disposable batteries, opens the second valve 52, and closes the first valve 51 and the third valve 53. The circulating pump transports the circulating wastewater in the alkali liquid tank 40 to the filter press 30 through the second pipeline 72. The filter press 30 performs solid-liquid separation on the circulating wastewater to separate salt mud and neutralizing liquid. The neutralizing liquid is transported to the wastewater treatment device in the park, and the salt mud and the like are recycled for washing residue in the park.

[0039] Step 5: After the circulating waste water in the alkali liquid tank 40 is emptied, close the second valve 52 and the third valve 53, and open the first valve 51 to fill the alkali liquid in the liquid storage barrel 10 into the alkali liquid tank 40, and repeat steps 3 and 4 to start a new round of crushing treatment, so that the disposable lithium batteries can be completely recycled and utilized through the filter press 30.

[0040] In summary, different from the prior art, the utility model provides a battery crushing equipment 100, including a liquid storage barrel 10, a shredder 20, a filter press 30 and an alkali liquid tank 40, the liquid storage barrel 10 is connected to the alkali liquid tank 40 through a first pipe 71, the filter press 30 is connected to the alkali liquid tank 40 through a second pipe 72, one end of the shredder 20 is connected to the alkali liquid tank 40 through a third pipe 73, and the other end of the shredder 20 is connected to the second pipe 72 through a fourth pipe 74, wherein the liquid storage barrel 10 is used to store alkali liquid, the shredder 20 is used to soak the battery in the alkali liquid and crush the battery, and the filter press 30 is used to perform solid-liquid separation on the circulating wastewater generated by the alkali liquid tank 40; the utility model crushes the battery in an environment soaked in alkali liquid, so that the crushed battery has a higher discharge efficiency, and at the same time, the solid-liquid separation is performed on the generated circulating wastewater by the filter press 30, thereby further improving the recovery rate of battery recycling.

[0041] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference can be made to the description in other embodiments.

[0042] The above embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A battery crushing equipment, characterized in that: It includes a liquid storage barrel, a shredder, a filter press and an alkali liquid tank, wherein the liquid storage barrel is connected to the alkali liquid tank through a first pipe, the filter press is connected to the alkali liquid tank through a second pipe, one end of the shredder is connected to the alkali liquid tank through a third pipe, and the other end of the shredder is connected to the second pipe through a fourth pipe; The liquid storage barrel is used to store alkali solution; the shredder is used to immerse the battery in the alkali solution and crush the battery; and the filter press is used to perform solid-liquid separation on the circulating wastewater generated by the alkali solution tank.

2. The battery crushing equipment according to claim 1, characterized in that: An alkali preparation device is arranged in the liquid storage barrel, and the alkali preparation device comprises a stirrer.

3. The battery crushing equipment according to claim 1, characterized in that: A first liquid level meter and a first pH meter are also arranged in the liquid storage barrel.

4. The battery crushing equipment according to claim 1, characterized in that: The shredder comprises a crushing shell having a crushing cavity, wherein the crushing cavity is respectively connected to the third pipe and the fourth pipe, and the crushing cavity is used for loading alkali solution and disposable lithium batteries.

5. The battery crushing equipment according to claim 1, characterized in that: A negative pressure exhaust system is also provided above the shredder, the negative pressure exhaust system is communicated with the crushing chamber, and an exhaust gas treatment device is also provided at one end of the negative pressure exhaust system away from the shredder.

6. The battery crushing equipment according to claim 1, characterized in that: A second liquid level meter and a second pH meter are also provided in the alkali solution tank.

7. The battery crushing equipment according to claim 1, characterized in that: A first valve is installed on the first pipeline, a third valve is installed on the fourth pipeline, and a second valve is installed on the second pipeline.

8. The battery crushing equipment according to claim 7, characterized in that: When the crushing equipment starts to crush the battery, the first valve and the second valve are both closed, the third valve is opened, and the shredder and the alkali solution tank are connected to form a closed loop through the third pipe and the fourth pipe.

9. The battery crushing equipment according to claim 7, characterized in that: When the pH value of the circulating wastewater generated in the alkali liquid tank is 7, the first valve and the third valve are both closed, the second valve is opened, and the filter press performs solid-liquid separation treatment on the circulating wastewater.

10. The battery crushing equipment according to claim 1, characterized in that: The crushing equipment also includes a vacuum pump installed on the second pipeline, one end of the vacuum pump is connected to the alkali liquid tank through a pipeline, and the other end of the vacuum pump is respectively connected to the filter press and the shredder through pipelines.

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