Lithium battery material reaction tail gas combustion treatment device
By designing a cone structure exhaust gas treatment device, the intermediate channel and the downward channel are used to gradually increase the volume, combined with the design of the ascending channel and the horizontal channel, the exhaust flow rate is reduced, the problem of the exhaust gas impact on the burner flame is solved, and the exhaust gas is fully realized Conservation of combustion and energy consumption.
Patent Information
- Application Number
- CN202411860558.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-02-21
AI Technical Summary
In the prior art, the exhaust gas is windy at a high speed during the fan delivery process. Directly entering the combustion chamber will cause a large impact on the flame of the igniter, resulting in insufficient combustion of the exhaust gas, poor treatment effect, and increasing the fire spurt will increase energy. Consumption.
A lithium battery material reaction exhaust gas combustion treatment device is designed, using a conical structure box with narrow upper and wide upper lower, with intermediate channels and descending channels inside, so that the volume of the descending channels gradually increases and reduces the exhaust pressure and flow rate. At the same time, an ascending channel and a horizontal channel are set to reduce the exhaust gas flow rate through the baffle to avoid impact on the burner.
It effectively avoids the impact of exhaust gas on the burner flame, ensures full combustion of exhaust gas, reduces energy consumption, and improves the efficiency of combustion treatment.
Smart Images
Figure CN119492052A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a tail gas combustion treatment device, in particular to a lithium battery material reaction tail gas combustion treatment device. Background Art
[0002] After the lithium battery material undergoes a high temperature reaction, a large amount of combustible tail gas will be generated, mixed with a large amount of dust. If these tail gases are directly discharged into the production workshop or the atmosphere, there will be a risk of deflagration after accumulating to a certain concentration, posing a threat to the life safety of workers. In addition, discharging into the atmosphere will also pollute the atmospheric environment, affect respiratory health, and not meet environmental protection requirements. Therefore, in the process of lithium battery material processing, it is necessary to burn and filter the tail gas in time before discharging it. In the prior art, a combustion furnace is generally used to burn the tail gas. Specifically, the tail gas is passed into the combustion chamber through a fan, and then heated and burned by an igniter. However, the tail gas has a large wind speed during the fan conveying process. If it is directly passed into the combustion chamber, it will have a large impact on the flame of the igniter. On the one hand, this may blow out the flame or make the flame smaller, resulting in incomplete combustion of the tail gas and poor treatment effect. On the other hand, if the flame-spraying force of the igniter is increased, it will generate greater energy consumption, which cannot meet the requirements in any case. Summary of the invention
[0003] The purpose of the present invention is to provide a lithium battery material reaction tail gas combustion treatment device which can buffer the tail gas before combustion treatment, avoid a large impact on the flame of the igniter, make the tail gas burn fully, and save energy consumption.
[0004] In order to achieve the above-mentioned purpose, the lithium battery material reaction tail gas combustion treatment device provided by the present invention includes a box body, a burner, a base and a heat exchanger, the box body is a conical structure that is narrow at the top and wide at the bottom; a cavity is provided at the upper end of the box body, a middle channel is opened along the central axis of the box body, an air inlet is opened on the outer side wall of the upper end of the box body, and the air inlet is connected to the cavity; the box body is provided with an annular descending channel around the outer side of the middle channel; the upper end of the descending channel is connected to the cavity, the descending channel is inclined downward from the upper end and the width gradually increases from the upper end to the lower end; the inner bottom of the box body A base is provided, and the base is in a conical structure that is narrow at the top and wide at the bottom. An ascending channel is formed between the side of the base and the inner bottom wall of the box body, and the ascending channel is arranged to be inclined upward from the end close to the outside to the end close to the center; one end of the ascending channel is connected to the descending channel, and the other end is connected to the lower end of the middle channel; the burner is arranged on the top of the base and extends into the lower end of the middle channel; an air outlet is provided on the upper end face of the box body; the heat exchanger is arranged in the cavity and one end is connected to the upper end of the middle channel, and the other end is connected to the air outlet.
[0005] Compared with the prior art, the present invention sets the box body into a cone structure with a narrow top and a wide bottom, and sets an intermediate channel and a descending channel in the box body, so that the descending channel is inclined downward from the upper end and the width is gradually increased from the upper end to the lower end, so that the volume of the descending channel from the air inlet to the intermediate channel is gradually increased, which is conducive to reducing the pressure and flow rate of the exhaust gas. At the same time, by setting the ascending channel, the ascending channel is inclined upward from the end close to the outside to the end close to the center, so that the exhaust gas is blocked by the inner bottom surface of the box body when it turns from the descending channel to the ascending channel, thereby further reducing the flow rate of the exhaust gas, thereby reducing the impact of the exhaust gas on the flame of the burner. In addition, by setting the base into a cone structure with a narrow top and a wide bottom, the burner is set at the top of the base and extends into the lower end of the intermediate channel, so that the burner is located on one side of the airflow, so that the exhaust gas cannot directly impact the burner. Therefore, the present invention can maintain the size of the burner flame, effectively ensure the full combustion of the exhaust gas, and save energy.
[0006] Preferably, a horizontal channel is provided at the inner bottom of the box, and the two ends of the horizontal channel are respectively connected to the lower end of the descending channel and the lower end of the ascending and descending channel. By providing the horizontal channel, the bottom surface of the box can be used to block the exhaust gas and reduce the flow rate of the exhaust gas.
[0007] Specifically, a plurality of baffles are provided in the descending channel and / or the horizontal channel, and two adjacent baffles are provided with gaps and staggered positions. By providing the baffles, the flow rate of the exhaust gas can be effectively reduced, thereby reducing the impact on the burner and allowing the exhaust gas to be fully burned.
[0008] Preferably, a mounting hole is provided in the middle of the bottom surface of the housing, the mounting hole connects the inside and outside of the housing, the base is detachably mounted on the mounting hole, and the burner is detachably mounted on the top of the base so that it can extend into the middle channel when the base is mounted in the mounting hole. By providing the mounting hole and then installing the base in the mounting hole, the burner can be installed in the middle channel from the bottom surface of the housing, thereby eliminating the need to remove the upper components, and installation is very convenient. In addition, exhaust gas will generate particulate matter after combustion, and these particulate matter will sink to the bottom of the housing. By removing the base, the bottom of the housing can be cleaned regularly from the mounting hole, and maintenance is very convenient and quick.
[0009] Preferably, the burner includes a base with a trapezoidal or conical cross section and a plurality of igniters, the outer side surface and the top surface of the base are respectively provided with a plurality of through holes, the igniters are respectively installed in the through holes, the igniters located on the outer side surface face the outlet of the ascending channel, and the igniters located on the top surface face the middle channel. By arranging the igniters on the outer side surface and the top surface of the base, the burner can burn the exhaust gas in the ascending channel and at the lower end of the middle channel, ensuring that the exhaust gas is fully burned.
[0010] Specifically, the angle of the outer side of the base relative to the bottom of the box is equal to the angle of the outer side of the base relative to the bottom of the box. This not only ensures smooth airflow in the ascending channel, but also enables the igniter on the outer side of the base to be located near one side of the airflow, so that the exhaust gas can be fully burned while avoiding the frontal impact of the airflow as much as possible, thereby improving the combustion efficiency.
[0011] Preferably, the lower section of the middle channel is in a cone structure, so that the middle channel can be close to the descending channel, so that the heat generated by the combustion in the middle channel can be quickly transferred to the descending channel, thereby heating the exhaust gas before combustion, further allowing the exhaust gas to be fully burned and improving the combustion efficiency.
[0012] Preferably, the heat exchanger includes a fixing frame and a plurality of heat exchange tubes, the heat exchangers are arranged on the fixing frame in parallel and at a certain interval, one end of each heat exchange tube forms a plurality of air inlet holes on the fixing frame, and the other end is connected to the air outlet. By setting up the heat exchanger, the exhaust gas can be quickly heated and heated when entering the cavity, further allowing the exhaust gas to be fully burned and improve the combustion efficiency; and the exhaust gas after combustion can be cooled before being discharged, improving the safety of equipment operation.
[0013] Specifically, the central axis of the heat exchange tube is parallel to the central axis of the middle channel and perpendicular to the air intake direction of the air intake port, so that the exhaust gas can fully exchange heat in the cavity and effectively improve the heat exchange speed.
[0014] Preferably, a filter is provided in the middle channel, and the filter is located between the heat exchanger and the burner. The filter can prevent foreign impurities from falling onto the burner, and can intercept larger particles after combustion, so that they fall to the bottom of the box, preventing them from adhering to the heat exchanger and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the lithium battery material reaction tail gas combustion treatment device of the present invention.
[0016] Figure 2 It is a tail gas flow diagram of the lithium battery material reaction tail gas combustion treatment device of the present invention.
[0017] Figure 3 It is a structural diagram of the burner of the lithium battery material reaction tail gas combustion treatment device of the present invention. DETAILED DESCRIPTION
[0018] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.
[0019] like Figure 1 and Figure 2 As shown, the lithium battery material reaction tail gas combustion treatment device 100 of the present invention includes a box body 1, a burner 2, a base 3 and a heat exchanger 4, and the box body 1 is a cone structure or a tower structure that is narrow at the top and wide at the bottom. The upper end of the box body 1 is provided with an annular cavity 11, and the box body 1 is provided with an intermediate channel 12 along the central axis. The upper end outer wall of the box body 1 is provided with an air inlet 13, and the air inlet 13 is connected with the cavity 11. The box body 1 is provided with an annular descending channel 14 around the outer side of the intermediate channel 12; the upper end of the descending channel 14 is connected with the cavity 11, and the descending channel 14 is inclined downward from the upper end and the width gradually increases from the upper end to the lower end. The inner bottom of the box body 1 is provided with a base 3, and the base 3 is a cone structure that is narrow at the top and wide at the bottom. An annular ascending channel 15 is formed between the side of the base 3 and the inner bottom wall of the box body 1, and the ascending channel 15 is arranged upwardly and inclined from one end close to the outside to one end close to the center. One end of the ascending channel 15 is in communication with the descending channel 14, and the other end is in communication with the lower end of the intermediate channel 12. The burner 2 is arranged on the top of the base 3 and extends into the lower end of the intermediate channel 12. An air outlet 16 is arranged on the upper end surface of the box body 1; the heat exchanger 4 is arranged in the cavity 11 and one end is in communication with the upper end of the intermediate channel 12, and the other end is in communication with the air outlet 16.
[0020] For example Figure 1 As shown, a horizontal channel 17 is provided at the inner bottom of the box body 1, and the two ends of the horizontal channel 17 are respectively connected to the lower end of the descending channel 14 and the lower end of the upper and lower passages. By providing the horizontal channel 17, the bottom surface of the box body 1 can be used to block the exhaust gas and reduce the flow rate of the exhaust gas. A plurality of baffles 18 are provided in both the descending channel 14 and the horizontal channel 17, one side of the baffle 18 is connected to the inner wall of the corresponding channel, and the other side is provided with a gap between the inner wall of the channel. Two adjacent baffles 18 are provided with gaps and staggered. By providing the baffles 18, the flow rate of the exhaust gas can be effectively reduced, thereby reducing the impact on the burner 2 and allowing the exhaust gas to be fully burned.
[0021] Please see again Figure 1 A mounting hole 19 is provided in the middle of the bottom surface of the housing 1, and the mounting hole 19 connects the inside and outside of the housing 1. The base 3 is detachably mounted on the mounting hole 19, and the burner 2 is detachably mounted on the top of the base 3 so that the burner 2 can extend into the middle channel 12 when the base 3 is mounted in the mounting hole 19. By providing the mounting hole 19 and then mounting the base 3 in the mounting hole 19, the burner 2 can be mounted in the middle channel 12 from the bottom surface of the housing 1, so that there is no need to remove the upper components, and the installation is very convenient. In addition, after the exhaust gas is burned, particulate matter will be generated, and these particulate matter will sink to the bottom of the housing 1. By removing the base 3, the bottom of the housing 1 can be cleaned regularly from the mounting hole 19, and the maintenance is very convenient and quick.
[0022] See also Figure 3 The burner 2 includes a base 21 with a trapezoidal or conical cross section and a plurality of igniters 22. The outer side and top surface of the base 21 are respectively provided with a plurality of through holes 211. The igniters 22 are respectively installed in the through holes 211. The igniters 22 located on the outer side face the outlet of the ascending channel 15, and the igniters 22 located on the top face face the intermediate channel 12. By arranging the igniters 22 on the outer side and top surface of the base 21, the burner 2 can burn the exhaust gas in the ascending channel 15 and at the lower end of the intermediate channel 12, ensuring that the exhaust gas is fully burned. The angle of the outer side surface of the base 21 relative to the bottom surface of the box body 1 is equal to the angle of the outer side surface of the base 3 relative to the bottom surface of the box body 1. In this way, not only can the smooth flow of the airflow in the ascending channel 15 be ensured, but also the igniters 22 on the outer side surface of the base 21 can be located near one side of the airflow, so that the exhaust gas can be fully burned while avoiding the front impact of the airflow as much as possible, thereby improving the combustion efficiency.
[0023] See also Figure 1 The lower section of the middle channel 12 is a cone structure, that is, the diameter of the middle channel 12 gradually increases from the middle to the lower end. In this way, the inner wall of the middle channel 12 can be close to the inner wall of the descending channel 14, so that the heat generated by the combustion in the middle channel 12 can be quickly transferred to the descending channel 14, thereby heating the exhaust gas before combustion, further allowing the exhaust gas to be fully burned and improving the combustion efficiency.
[0024] See also Figure 1, the heat exchanger 4 includes a fixing frame 41 and a plurality of heat exchange tubes 42. The heat exchangers 4 are arranged on the fixing frame 41 in parallel and at a certain interval. One end of each heat exchange tube 42 forms a plurality of air inlet holes on the fixing frame 41, and the other end is connected to the air outlet 16. By setting the heat exchanger 4, the exhaust gas can be quickly heated and heated when entering the cavity 11, and the exhaust gas can be fully burned to improve the combustion efficiency; and the exhaust gas after combustion can be cooled before being discharged to improve the safety of equipment operation. Specifically, the central axis direction of the heat exchange tube 42 is parallel to the central axis of the intermediate channel 12, and is perpendicular to the air inlet direction of the air inlet 13. In this way, the exhaust gas can fully exchange heat in the cavity 11, effectively improving the heat exchange rate.
[0025] See also Figure 1 A filter screen 121 is provided in the middle channel 12, and the filter screen 121 is located between the heat exchanger 4 and the burner 2. The filter screen 121 can prevent foreign impurities from falling onto the burner 2, and can also intercept larger particles after combustion, so that they fall to the bottom of the box body 1, and prevent them from adhering to the heat exchanger 4 and causing blockage.
[0026] Combining the above and the above Figure 1 and 2 , the working principle of the present invention is described in detail below, as follows:
[0027] During operation, the exhaust gas is input from the air inlet 13 into the cavity 11 by a fan, and the exhaust gas exchanges heat with the heat exchanger 4 in the cavity 11 to increase the temperature. After that, the exhaust gas flows downward from the descending channel 14, and after being decelerated by the horizontal channel 17, the exhaust gas enters the ascending channel 15. When the exhaust gas is about to enter the lower end of the intermediate channel 12 from the outlet of the ascending channel 15, the exhaust gas is ignited and burned by the igniter 22 on the side of the burner 2; then, the exhaust gas enters the intermediate channel 12, and at this time, the exhaust gas is burned again by the igniter 22 on the top surface of the burner 2. After the combustion is complete, the exhaust gas passes upward through the intermediate channel 12. In the process of rising, the heat heats the outer descending channel 14 through the inner wall, so that the exhaust gas newly entering the descending channel 14 is heated. When the exhaust gas after combustion enters the heat exchanger 4, the heat carried by the exhaust gas is heat exchanged with the exhaust gas newly entering the cavity 11 in the heat exchanger 4, the temperature of the exhaust gas newly entering the cavity 11 increases, while the temperature of the exhaust gas after combustion decreases. Finally, the exhaust gas after combustion is discharged outward from the outlet 16.
[0028] Compared with the prior art, the present invention sets the housing 1 into a cone structure that is narrow at the top and wide at the bottom, and sets an intermediate channel 12 and a descending channel 14 in the housing 1, so that the descending channel 14 is inclined downward from the upper end and the width gradually increases from the upper end to the lower end, so that the volume of the descending channel 14 from the air inlet 13 to the intermediate channel 12 gradually increases, which is conducive to reducing the pressure and flow rate of the exhaust gas. At the same time, by setting an ascending channel 15, the ascending channel 15 is inclined upward from the end close to the outside to the end close to the center, so that the exhaust gas is blocked by the inner bottom surface of the housing 1 when it turns from the descending channel 14 to the ascending channel 15, thereby further reducing the flow rate of the exhaust gas, thereby reducing the impact of the exhaust gas on the flame of the burner 2. In addition, by setting the base 3 to be a conical structure that is narrow at the top and wide at the bottom, the burner 2 is set at the top of the base 3 and extends into the lower end of the middle channel 12. Therefore, the burner 2 is located on one side of the airflow, so that the exhaust gas cannot directly impact the burner 2. Therefore, the present invention can maintain the flame size of the burner 2, effectively ensure the full combustion of the exhaust gas, and save energy.
[0029] The structure of the igniter 22 involved in the lithium battery material reaction tail gas combustion treatment device 100 of the present invention is well known to ordinary technicians in the field and will not be described in detail here.
[0030] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.
Claims
1. A lithium battery material reaction tail gas combustion treatment device, characterized in that: The invention comprises a box body, a burner, a base and a heat exchanger, wherein the box body is a cone structure which is narrow at the top and wide at the bottom; a cavity is provided at the upper end of the box body, a middle channel is provided at the box body along the central axis, an air inlet is provided at the outer side wall of the upper end of the box body, and the air inlet is communicated with the cavity; an annular descending channel is provided at the box body around the outer side of the middle channel; the upper end of the descending channel is communicated with the cavity, the descending channel is inclined downward from the upper end and the width increases gradually from the upper end to the lower end; a base is provided at the inner bottom of the box body, and the base is narrow at the top and wide at the bottom. It has a conical structure, and an ascending channel is formed between the side of the base and the inner bottom wall of the box body. The ascending channel is arranged to be inclined upward from the end close to the outside to the end close to the center; one end of the ascending channel is connected to the descending channel, and the other end is connected to the lower end of the middle channel; the burner is arranged on the top of the base and extends into the lower end of the middle channel; the upper end face of the box body is provided with an air outlet; the heat exchanger is arranged in the cavity and one end is connected to the upper end of the middle channel, and the other end is connected to the air outlet.
2. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: A horizontal channel is provided at the inner bottom of the box body, and two ends of the horizontal channel are respectively communicated with the lower end of the descending channel and the lower end of the ascending and descending channel.
3. The lithium battery material reaction tail gas combustion treatment device according to claim 2, characterized in that: A plurality of baffles are arranged in the descending channel and / or the horizontal channel, and two adjacent baffles are arranged in a staggered manner with a gap.
4. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: A mounting hole is provided in the middle of the bottom surface of the box body, and the mounting hole connects the inside and outside of the box body. The base is detachably mounted on the mounting hole, and the burner is detachably mounted on the top of the base so that it can extend into the middle channel when the base is installed in the mounting hole.
5. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: The burner includes a base with a trapezoidal or conical cross-section and a plurality of igniters. The outer side surface and the top surface of the base are respectively provided with a plurality of through holes. The igniters are respectively installed in the through holes. The igniters located on the outer side surface face the outlet of the ascending channel, and the igniters located on the top surface face the middle channel.
6. The lithium battery material reaction tail gas combustion treatment device according to claim 5, characterized in that: The angle of the outer side surface of the base relative to the bottom surface of the box is equal to the angle of the outer side surface of the base relative to the bottom surface of the box.
7. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: The lower section of the middle channel is in a cone structure.
8. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: The heat exchanger includes a fixing frame and a plurality of heat exchange tubes. The heat exchangers are arranged on the fixing frame in parallel and at a certain interval. One end of each heat exchange tube forms a plurality of air inlet holes on the fixing frame, and the other end is connected to the air outlet.
9. The lithium battery material reaction tail gas combustion treatment device according to claim 8, characterized in that: The central axis direction of the heat exchange tube is parallel to the central axis of the intermediate channel and is perpendicular to the air intake direction of the air inlet.
10. The lithium battery material reaction tail gas combustion treatment device according to claim 1, characterized in that: A filter is provided in the intermediate channel, and the filter is located between the heat exchanger and the burner.