Waste gas treatment device in waste lithium battery treatment

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device in waste lithium battery treatment, which comprises a waste gas dust fall treatment tank, an unpowered air suction component is connected to an inlet at the top of the waste gas dust fall treatment tank, and a cooling component for protecting equipment is mounted at the top of the waste gas dust fall treatment tank. The top of the cooling assembly is provided with a power generation assembly used for utilizing high-temperature and high-pressure gas, the top of the power generation assembly is connected with a Tesla valve, an inlet of the Tesla valve is connected with a waste gas inlet pipe in waste lithium battery treatment, and the power generation assembly comprises a sleeve, a shaft rod, blades and a power generator. The blades are mounted on the outer circumferential wall of the shaft rod in the sleeve; by integrating the Tesla valve, the unpowered air suction assembly, the cooling assembly and the power generation assembly, efficient treatment and energy recovery of high-temperature waste gas are achieved, and meanwhile the problems of resource waste and high-temperature harm in a traditional device are solved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a waste gas treatment device for the treatment of waste lithium batteries. Background Technology

[0002] In recent years, the electric vehicle market has developed rapidly, and the number of vehicles on the road has continued to increase. After multiple charge-discharge cycles, the battery capacity of electric vehicles gradually decreases. When the battery capacity drops to about 80% of its rated capacity, it can no longer meet the normal driving needs of the vehicle and needs to be replaced. These replaced power batteries become waste lithium batteries.

[0003] To effectively dispose of used lithium batteries and reduce harm to the environment and human health, the first step is to discharge them. Discharging is the primary step in the treatment of used lithium batteries. By immersing the lithium batteries in salt water to discharge them, the amount of electrical energy stored in the batteries is effectively reduced, creating conditions for subsequent recycling.

[0004] During the discharge process of used lithium batteries in salt water, electrochemical reactions occur inside the batteries. The electrolyte in lithium-ion batteries typically contains substances such as lithium salts. When in contact with salt water and energized, complex chemical reactions occur, producing various waste gases. These include hydrogen and oxygen produced by the chemical reactions, harmful substances such as fluorides from electrolyte evaporation, and gaseous compounds from electrode material reactions. These waste gases pose potential hazards to the environment and human health; therefore, appropriate waste gas treatment measures are necessary to mitigate their impact.

[0005] The prior art proposes a waste lithium battery organic waste gas recovery device, which includes a settling tank. The settling tank is equipped with a stirring component. Through the cooperation of the settling tank, stirring component, gas collection component, diversion component, discharge component, liquid inlet pipe and liquid outlet pipe, the rotating motor drives the rotating wheel frame and suction fan frame to rotate. The dust removal frame on the surface of the rotating wheel frame removes large particles in the waste gas. The adsorbed waste gas is drawn into the diversion tank through the suction fan frame. The waste gas is discharged into the settling tank through the diversion pipe. The waste gas is neutralized by the alkaline solution in the settling tank. Finally, the treated waste gas is dried in the drying tank under the action of the suction pump and then discharged.

[0006] During the brine treatment of waste lithium batteries, complex electrochemical reactions occur inside the batteries, generating various high-temperature gases. These gases not only have high temperatures but also a certain impact force, posing a potential hazard to the treatment equipment environment. One of the aforementioned waste lithium battery organic waste gas recovery devices does not utilize the high temperature in the gases, and requires additional electricity to drive the suction fan frame to rotate, resulting in resource waste. Utility Model Content

[0007] The purpose of this invention is to provide a waste gas treatment device for the processing of waste lithium batteries, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A waste gas treatment device for waste lithium battery processing includes a waste gas dust suppression tank. A non-powered suction component is connected to the top inlet of the waste gas dust suppression tank. A cooling component for protecting the equipment is installed on the top of the waste gas dust suppression tank. A power generation component for utilizing high-temperature and high-pressure gas is installed on the top of the cooling component. A Tesla valve is connected to the top of the power generation component. The inlet of the Tesla valve is connected to the waste gas inlet pipe in the waste lithium battery processing.

[0010] As a preferred embodiment of this utility model, the power generation component includes a sleeve, a shaft, blades, and a generator. The sleeve is a cylindrical structure with openings at both ends. The top of the sleeve is connected to the bottom outlet of the Tesla valve. The shaft is located parallel inside the sleeve. One end of the shaft is connected to the inner wall of the sleeve via a bearing. The other end of the shaft extends through the sleeve to the outside and is connected to the rotor at the input end of the generator. The generator is fixedly located on the outer wall of the sleeve. The blades are installed on the outer circumferential wall of the shaft inside the sleeve.

[0011] As a preferred embodiment of this utility model, the cooling component includes a cooling pipe, a cooling cylinder is provided outside the cooling pipe, a filter screen is connected between the top of the cooling pipe and the bottom of the sleeve, a cooling channel is formed between the outer wall of the cooling pipe and the inner wall of the cooling cylinder, one side of the top of the cooling cylinder is connected to an external water supply device, and the other side of the bottom of the cooling cylinder is connected to an external warm water supply device.

[0012] As a preferred embodiment of this utility model, the non-powered suction assembly includes a non-powered fan, which is located on the exhaust gas dust treatment tank at the bottom of the cooling pipe. A fixing rod is installed inside the non-powered fan through a bearing, and the outer walls on both sides of the fixing rod are connected to the outer walls on both sides of the bottom of the cooling pipe through crossbars.

[0013] As a preferred embodiment of this utility model, the generator is connected to an external battery via a wire.

[0014] In a preferred embodiment of this invention, the Tesla valve is positively connected to the top of the sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In response to the problems mentioned in the background technology, this application achieves efficient treatment and energy recovery of high-temperature exhaust gas by integrating a Tesla valve, a non-powered suction component, a cooling component, and a power generation component, while solving the problems of resource waste and high-temperature hazards in traditional devices;

[0017] The Tesla valve is installed between the exhaust gas inlet pipe and the power generation unit. Its one-way conduction characteristic can effectively prevent exhaust gas backflow and ensure one-way gas flow. The special structural design of the Tesla valve can reduce energy loss of gas during the transportation process and improve transportation efficiency. The impact force brought by the exhaust gas from top to bottom ensures the operation of the subsequent power generation unit.

[0018] The power generation unit consists of a sleeve, shaft, blades and generator. High-temperature and high-pressure gas enters the sleeve through a Tesla valve, driving the blades to rotate, which in turn drives the rotor of the shaft and generator to rotate, thereby converting mechanical energy into electrical energy. This design utilizes the impact force of high-temperature gas and avoids the waste of additional electric drive.

[0019] The cooling system includes cooling pipes and cooling cylinders. Cooling water in the cooling channel cools the high-temperature gas, which not only protects downstream equipment from high-temperature damage, but also recovers heat from the high-temperature gas, further improving energy efficiency.

[0020] The non-powered suction assembly draws in air using a non-powered fan, utilizing the air flow and pressure difference to drive the fan to rotate, requiring no external power input and further reducing energy consumption;

[0021] The electrical energy generated by the power generation components is transmitted to an external battery for storage via wires, realizing energy recovery and reuse. This design not only improves the overall efficiency of the system, but also reduces dependence on traditional energy sources.

[0022] The device converts the kinetic energy of high-temperature gas into electrical energy through power generation components, reducing resource waste; cooling components effectively reduce the potential harm of high-temperature gas to equipment and extend its service life; the application of non-powered suction components and Tesla valves reduces dependence on external power and lowers operating costs; while treating waste gas, the device achieves energy recovery and reuse, which is in line with the concept of green and sustainable development.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is an overall side view of the present invention;

[0025] Figure 2 This is an isometric drawing of the Tesla valve of this utility model;

[0026] Figure 3 This is a side view of the power generation component of this utility model;

[0027] Figure 4 This is a side view of the cooling component of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the non-powered suction component of this utility model.

[0029] In the diagram: 1. Exhaust gas dust suppression tank; 2. Cooling component; 21. Cooling pipe; 211. Cooling cylinder; 212. Cooling channel; 3. Power generation component; 31. Sleeve; 32. Shaft; 33. Blade; 34. Generator; 35. Filter screen; 4. Tesla valve; 5. Non-powered suction component; 51. Non-powered fan; 511. Fixing rod; 512. Crossbar. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0031] Please see Figure 1-5 This utility model provides a technical solution: a waste gas treatment device for waste lithium battery processing, including a waste gas dust suppression tank 1, a non-powered suction assembly 5 connected to the top inlet of the waste gas dust suppression tank 1, a cooling assembly 2 for protecting the equipment installed on the top of the waste gas dust suppression tank 1, a power generation assembly 3 for utilizing high-temperature and high-pressure gas installed on the top of the cooling assembly 2, a Tesla valve 4 connected to the top of the power generation assembly 3, and the inlet of the Tesla valve 4 connected to the waste gas inlet pipe in the waste lithium battery processing; the power generation assembly 3 includes a sleeve 31, a shaft 32, and blades. The sleeve 31 is a cylindrical structure with open ends. The top of the sleeve 31 is connected to the bottom outlet of the Tesla valve 4. The shaft 32 is parallel to the inside of the sleeve 31. One end of the shaft 32 is connected to the inner wall of the sleeve 31 through a bearing. The other end of the shaft 32 extends through the sleeve 31 to the outside and is connected to the rotor at the input end of the generator 34. The generator 34 is fixed on the outer wall of the sleeve 31. The blades 33 are installed on the outer circumferential wall of the shaft 32 inside the sleeve 31. The generator 34 is connected to an external battery through wires. The Tesla valve 4 is connected to the top of the sleeve 31 in a forward orientation.

[0032] It should be noted that, in this embodiment, the Tesla valve 4 is a passive check valve (see attached diagram). Figure 2Its structure consists of a series of interconnected teardrop-shaped rings. This design allows for a relatively smooth flow path and low flow resistance when the fluid flows in the forward direction (from the inlet to the outlet of the Tesla valve), enabling it to pass through smoothly. In the exhaust gas treatment device, the Tesla valve 4 is installed between the exhaust gas inlet pipe and the power generation component. Its unidirectional conduction characteristic can effectively prevent exhaust gas backflow and ensure unidirectional gas flow. At the same time, the design of the Tesla valve can reduce energy loss during gas transportation and improve transportation efficiency. The impact force brought by the exhaust gas from top to bottom ensures the operation of the subsequent power generation component 3.

[0033] The power generation assembly 3 includes a sleeve 31, a shaft 32, blades 33, and a generator 34. After the high-temperature and high-pressure gas exits from the Tesla valve 4, it enters the sleeve 31 of the power generation assembly 3. The impact force of the gas drives the blades 33 to rotate. The blades 33 are mounted on the shaft 32, which is connected to the inner wall of the sleeve 31 through a bearing and extends to the outside to connect with the input rotor of the generator 34. When the blades 33 rotate, they drive the shaft 32 and the rotor of the generator 34 to rotate, thereby converting mechanical energy into electrical energy. This power generation method utilizes the kinetic energy of the high-temperature gas and avoids the waste of additional power drive. The generator 34 is connected to an external battery through wires. The electrical energy generated by the power generation assembly 3 can be transmitted to the external battery for storage through wires. This not only realizes energy recovery and reuse but also reduces dependence on traditional power supply and improves the energy efficiency and sustainability of the entire system.

[0034] Please see Figure 1 , 4 5. The cooling component 2 includes a cooling pipe 21, a cooling cylinder 211 is provided outside the cooling pipe 21, a filter screen 35 is connected between the top of the cooling pipe 21 and the bottom of the sleeve 31, a cooling channel 212 is formed between the outer wall of the cooling pipe 21 and the inner wall of the cooling cylinder 211, one side of the top of the cooling cylinder 211 is connected to an external water supply device, and the other side of the bottom of the cooling cylinder 211 is connected to an external warm water supply device; the non-powered suction component 5 includes a non-powered fan 51, the non-powered fan 51 is located on the exhaust gas dust treatment tank 1 at the bottom of the cooling pipe 21, a fixing rod 511 is installed inside the non-powered fan 51 through a bearing, and the outer walls on both sides of the fixing rod 511 are connected to the outer walls on both sides of the bottom of the cooling pipe 21 through a crossbar 512.

[0035] It should be noted that in this embodiment, the function of the cooling component 2 is to reduce the temperature of the high-temperature exhaust gas, protect the downstream equipment from high-temperature damage, and recover heat to improve energy utilization efficiency. The cooling component 2 includes a cooling pipe 21, a cooling cylinder 211, and a cooling channel 212 between the outer wall of the cooling pipe 21 and the inner wall of the cooling cylinder 211. The exhaust gas flows through the cooling pipe 21, and the cooling cylinder 211 is sleeved on the outside of the cooling pipe 21 to form an annular cooling channel. The cooling channel 212 is located between the outer wall of the cooling pipe and the inner wall of the cooling cylinder and is used for the flow of cooling water. The filter screen 35 is installed between the top of the cooling pipe and the bottom of the sleeve 31 and is used to filter particulate matter in the exhaust gas.

[0036] Cooling water enters the cooling channel 212 from the inlet on one side of the top of the cooling cylinder 211. The cooling water flows in the cooling channel 212, absorbing the heat of the high-temperature exhaust gas, thereby reducing the temperature of the exhaust gas. The heated water is discharged from the outlet on the other side of the bottom of the cooling cylinder 211 and can be used for other processes or equipment that require hot water, realizing the recovery and utilization of heat.

[0037] High-temperature exhaust gas enters through the inlet of cooling pipe 21. When passing through cooling channel 212, it exchanges heat with cooling water, and the temperature decreases. The cooled exhaust gas continues to flow downward and enters the subsequent treatment equipment.

[0038] The function of the non-powered suction assembly 5 is to use the flow and pressure difference of the exhaust gas to drive the non-powered fan to rotate, thereby achieving the intake of exhaust gas without the need for additional power. The non-powered fan 51 is installed on the exhaust gas dust treatment tank 1 at the bottom of the cooling pipe 21. The fixing rod 511 is installed inside the non-powered fan through bearings to support the rotation of the fan. The crossbar 512 connects the outer walls on both sides of the fixing rod 511 to the outer walls on both sides of the bottom of the cooling pipe 21 to ensure the stable installation of the fan.

[0039] After the high-temperature exhaust gas flows out of the cooling pipe 21, it enters the exhaust gas dust treatment tank 1. The flow and pressure difference of the exhaust gas drive the non-powered fan 51 to rotate. The exhaust gas is sucked into the dust treatment tank by the suction effect of the fan. The rotation of the non-powered fan 21 does not require external power input and relies entirely on the energy of the flow of exhaust gas, thereby saving energy.

[0040] This exhaust gas treatment device integrates a cooling component and a non-powered suction component. It reduces the temperature of high-temperature exhaust gas through cooling water circulation to protect downstream equipment; utilizes the heat absorbed by the cooling water to achieve energy reuse; uses the flow energy of the exhaust gas to drive a non-powered fan, reducing dependence on traditional electricity and lowering operating costs; and removes particulate matter from the exhaust gas through a filter screen 35, improving the efficiency and quality of exhaust gas treatment.

[0041] The working process of this utility model:

[0042] During operation, exhaust gas is generated during the disposal of used lithium batteries. It enters Tesla valve 4 through the exhaust gas inlet pipe, passes through its complex internal channels, and exits through the outlet. The exhaust gas then enters the sleeve 31 of the generator assembly 3. The impact force of the exhaust gas drives the blades 33 to rotate. The blades are mounted on the shaft 32, which is connected to the inner wall of the sleeve 31 via bearings and extends to the outside, connecting to the input rotor of the generator 34. When the blades 33 rotate, they drive the shaft 32 and the rotor of the generator 34 to rotate, thus converting mechanical energy into electrical energy. The generator 34 is connected to an external battery via wires, and the generated electrical energy is transferred to the external battery for storage, achieving energy recovery and reuse. After exiting the generator assembly 3, the exhaust gas enters the cooling pipe 21 of the cooling assembly 2. The cooling cylinder 211 is fitted over the cooling pipe 21, forming an annular cooling channel 212. Cooling water enters the cooling channel 212 from the inlet on one side of the top of the cooling cylinder 211 and flows through the channel. The cooling pipe 21 absorbs heat from the high-temperature exhaust gas, thereby reducing its temperature. The heated water is discharged from the outlet on the other side of the bottom of the cooling pipe 211 and can be used in other processes or equipment that require hot water, realizing heat recovery and utilization. The cooled exhaust gas continues to flow downwards and enters the subsequent treatment equipment. After the exhaust gas flows out of the cooling pipe 21, it enters the exhaust gas dust suppression treatment tank 1. The non-powered fan 51 is installed on the exhaust gas dust suppression treatment tank 1 at the bottom of the cooling pipe 21. The fixing rod 511 is installed inside the non-powered fan through bearings to support the rotation of the fan. The crossbar 512 connects the outer walls on both sides of the fixing rod 511 to the outer walls on both sides of the bottom of the cooling pipe 21, ensuring the stable installation of the fan. The flow and pressure difference of the exhaust gas drive the non-powered fan 51 to rotate. The exhaust gas is sucked into the dust suppression treatment tank by the suction action of the fan. The rotation of the non-powered fan does not require external power input and relies entirely on the energy of the flow of exhaust gas, thereby saving energy. The exhaust gas undergoes dust suppression treatment in the exhaust gas dust suppression treatment tank 1 to remove particulate matter from the exhaust gas.

[0043] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A waste gas treatment device for the processing of waste lithium batteries, comprising a waste gas dust suppression tank (1), characterized in that: The exhaust gas dust suppression treatment tank (1) is connected to a non-powered suction assembly (5) at the top inlet. The exhaust gas dust suppression treatment tank (1) is equipped with a cooling assembly (2) for protecting the equipment. The cooling assembly (2) is equipped with a power generation assembly (3) for utilizing high-temperature and high-pressure gas. The power generation assembly (3) is connected to a Tesla valve (4) at the top. The inlet of the Tesla valve (4) is connected to the exhaust gas inlet pipe in the waste lithium battery treatment.

2. The waste gas treatment device for waste lithium battery processing according to claim 1, characterized in that: The power generation component (3) includes a sleeve (31), a shaft (32), blades (33), and a generator (34). The sleeve (31) is a cylindrical structure with openings at both ends. The top of the sleeve (31) is connected to the bottom outlet of the Tesla valve (4). The shaft (32) is parallel to the inside of the sleeve (31). One end of the shaft (32) is connected to the inner wall of the sleeve (31) through a bearing. The other end of the shaft (32) extends through the sleeve (31) to the outside and is connected to the rotor at the input end of the generator (34). The generator (34) is fixed on the outer wall of the sleeve (31). The blades (33) are installed on the outer circumferential wall of the shaft (32) inside the sleeve (31).

3. The waste gas treatment device for waste lithium battery processing according to claim 1, characterized in that: The cooling component (2) includes a cooling pipe (21), a cooling cylinder (211) is provided outside the cooling pipe (21), a filter screen (35) is connected between the top of the cooling pipe (21) and the bottom of the sleeve (31), a cooling channel (212) is formed between the outer wall of the cooling pipe (21) and the inner wall of the cooling cylinder (211), one side of the top of the cooling cylinder (211) is connected to an external water supply device, and the other side of the bottom of the cooling cylinder (211) is connected to an external warm water supply device.

4. The waste gas treatment device for waste lithium battery processing according to claim 3, characterized in that: The non-powered suction assembly (5) includes a non-powered fan (51), which is located on the exhaust gas dust treatment tank (1) at the bottom of the cooling pipe (21). A fixing rod (511) is installed inside the non-powered fan (51) through a bearing. The outer walls on both sides of the fixing rod (511) are connected to the outer walls on both sides of the bottom of the cooling pipe (21) through a crossbar (512).

5. The waste gas treatment device for waste lithium battery processing according to claim 2, characterized in that: The generator (34) is connected to an external battery via wires.

6. The waste gas treatment device for waste lithium battery processing according to claim 2, characterized in that: The Tesla valve (4) is positively connected to the top of the sleeve (31).

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