Environment-friendly filtering device for smelting waste gas of waste battery polar plate

Abstract

The invention discloses an environment-friendly filtering device for waste battery pole plate smelting waste gas, and relates to the technical field of waste gas filtering, the gas flow direction is improved based on the filtering principle, on the basis of a filter cylinder body, a center gas pipe capable of freely rotating is additionally arranged in the inner position of the filter cylinder body, and a plurality of swing ball rods are additionally arranged on the outer position of the center gas pipe; centrifugal force generated during rotation is matched to drive the swing ball rod to swing automatically, the inner wall of the filter cartridge body is mainly beaten to shake off impurities possibly attached to the inner wall of the filter cartridge body, it is guaranteed that the impurities are continuously accumulated on the lower portion of the filter cartridge body, and on the basis that normal operation of the filter cartridge body is not affected, the filter cartridge body is not damaged. Impurities in the filter cartridge body can flow back and be collected into the dust collection box by adopting two modes of active aeration and reverse airflow, and in the continuous operation process of the device, internal cleaning can be carried out, and the operation state of the device cannot be directly interfered.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas filtering, and in particular to an environmentally friendly filtering device for waste gas from smelting waste battery plates. Background Art

[0002] The waste battery plate smelting process is to decompose the waste materials in a high-temperature environment to obtain different products. Please refer to the relevant content in the publication number CN103606685A. It is also necessary to add a waste gas treatment system for hazardous gases, taking the relevant content in the publication number CN118341191A as an example.

[0003] To explain the filtration process, it is essentially to screen out the dust in the exhaust gas. Taking the high-temperature filter as an example, solids such as dust are adsorbed, and as the adsorption amount increases, the filtering capacity of the filter material decreases or even loses its filtering capacity, so it needs to be replaced or overhauled regularly. During the replacement or overhaul process, the overall exhaust gas treatment system is in a temporarily interrupted state, and the heavy metal components in the exhaust gas will indirectly affect the adsorption capacity of the filter material. Taking activated carbon as an example, activated carbon will undergo irreversible chemical reactions in the process of adsorbing heavy metals. Therefore, the adsorption capacity of activated carbon will gradually decrease, resulting in the difficulty in real-time control of the filtering capacity during the overall filtration process, which indirectly affects the exhaust gas treatment capacity.

[0004] This application proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly filtering device for waste battery plate smelting exhaust gas, which describes the filtering process for smelting exhaust gas treatment. The filtering process needs to be temporarily interrupted during the process, and the heavy metal components in the exhaust gas will indirectly affect the adsorption capacity of the filter material and indirectly affect the exhaust gas treatment capacity.

[0006] The object of the present invention can be achieved by the following technical scheme: an environmentally friendly filtering device for waste battery plate smelting waste gas, comprising a kettle body, a filter cartridge body, an air inlet pipe, a drive assembly and an air outlet, wherein the filter cartridge body is installed in the inner position of the kettle body, and a cooperating cone block is arranged at the lower end position of the inner part of the filter cartridge body, and a central air pipe arranged vertically is installed at the center point position of the cooperating cone block;

[0007] An ash collecting box is arranged directly below the kettle body, the lower end of the cooperative cone block is rotatably connected to the ash collecting box, and the interior of the filter cartridge body is connected to the interior of the ash collecting box through the cooperative cone block;

[0008] A clean air bin is arranged between the inner wall of the kettle and the outer wall of the filter cartridge body, and air blocking rings are arranged linearly and equidistantly in the vertical direction in the clean air bin, the air outlet is communicated with the inside of the clean air bin, the air inlet pipe is branched, and one end of the air inlet pipe is connected to the upper end of the filter cartridge body, and the other end of the air inlet pipe is connected to the ash collecting box;

[0009] An aeration port is installed at the lower end of the kettle body corresponding to the clean air bin, and a plurality of groups of swing ball rods are arranged on the outer wall of the central air pipe.

[0010] It is further configured as follows: the cooperative cone block is rotatably connected inside the filter cartridge body through a driving assembly, and a directional pin corresponding to the central air pipe is installed at the upper end position inside the filter cartridge body.

[0011] It is further configured that: the aeration port, the air outlet and the air inlet pipe are all provided with solenoid valves.

[0012] It is further configured as follows: a metal billiard ball is arranged at the lower end of the ball swing rod, and the upper end of the ball swing rod is movably connected to the outer wall of the central air pipe.

[0013] It is further configured as follows: the outer diameter of the central air pipe decreases from top to bottom, and the length of the swing ball rod is greater than the distance between the outer wall of the central air pipe and the inner wall of the filter cartridge body.

[0014] It is further configured as follows: a vertically arranged top pin is provided in the cooperative cone block, a blocking cone is provided at the upper end of the top pin, and a pressure plate is installed at the lower end of the top pin extending into the inner position of the ash collecting box.

[0015] It is further configured that: the outer diameter of the top pin is smaller than the inner diameter of the cooperative cone block.

[0016] It is further configured as follows: a diverter plate is installed inside the ash collecting box at the lower side of the pressure plate, the cross section of the pressure plate is an upward curved arch shape, the cross section of the diverter plate is a downward curved arch shape, and a hole is opened at the center of the diverter plate.

[0017] It is further configured that: the other end of the air intake pipe is located in the middle of the diverter plate and the pressure plate.

[0018] It is further configured as follows: a central guide rod corresponding to the air blocking ring is installed in the clean air bin, the air blocking ring and the central guide rod are slidably connected, and a connecting spring is arranged on the central guide rod at the middle position of the adjacent air blocking rings.

[0019] The present invention has the following beneficial effects:

[0020] 1. Based on the conventional filtering principle, the improvement and optimization is mainly aimed at the exhaust gas flow direction. Based on the filter cartridge body, a central air pipe is first set inside the filter cartridge body. On the one hand, the central air pipe is used to preliminarily limit the exhaust gas flow direction to ensure that the impurities in the exhaust gas are preferentially concentrated outside the central air pipe. On the other hand, the centrifugal force generated by the active rotation of the central air pipe drives the swing ball bar to flip at different angles, mainly "knocking" the inner wall of the filter cartridge body to shake off the impurities that may be attached to the inner wall of the filter cartridge body, ensuring that the impurities continue to accumulate in the lower part of the filter cartridge body to avoid impurities blocking the filter cartridge body and affecting the filtering effect;

[0021] 2. Combined with the above content, it is explained again that: on the basis of not affecting the normal operation of the filter cartridge body, active aeration and reverse airflow can be used. The essence of the active aeration method is to use reverse air blowing to blow off the attached impurities, while the reverse airflow method is mainly used to open the channel between the filter cartridge body and the ash collecting box. During the cleaning process, there is no need to interrupt the operation of the device for internal cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of an environmentally friendly filtering device for waste battery plate smelting waste gas proposed by the present invention;

[0024] Figure 2 The environmentally friendly filtering device for waste battery plate smelting waste gas proposed by the present invention Figure 1 A cross-sectional view of

[0025] Figure 3 The environmentally friendly filtering device for waste battery plate smelting waste gas proposed by the present invention Figure 1 The cutaway diagram of

[0026] Figure 4 This is a schematic diagram of the structure of the gas blocking ring in the environmentally friendly filtering device for waste battery plate smelting waste gas proposed by the present invention;

[0027] Figure 5 This is a schematic structural diagram of the central gas pipe in the environmentally friendly filtering device for waste battery plate smelting waste gas proposed by the present invention;

[0028] Figure 6This is a cross-sectional view of the filter cartridge body and the ash collecting box in the environmentally friendly filtering device for waste gas from smelting waste battery plates proposed by the present invention.

[0029] In the figure: 1. kettle body; 2. air outlet; 3. drive assembly; 4. ash collecting box; 5. aeration port; 6. filter cartridge body; 7. solenoid valve; 8. air inlet pipe; 9. center air pipe; 10. top pin; 11. diverter plate; 12. pressure plate; 13. cooperative cone block; 14. air blocking ring; 15. center guide rod; 16. connecting spring; 17. directional pin; 18. swing ball rod. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: The filtering process for treating smelting waste gas is described. During the process, the filtering process needs to be temporarily interrupted, and the heavy metal components in the waste gas will indirectly affect the adsorption capacity of the filter material and indirectly affect the waste gas treatment capacity. The following technical solutions are proposed:

[0032] Reference Figures 1 to 6 The environmentally friendly filtering device for waste battery plate smelting exhaust gas in this embodiment includes a kettle body 1, a filter cartridge body 6, an air inlet pipe 8, a drive assembly 3 and an air outlet 2. The filter cartridge body 6 is installed in the inner position of the kettle body 1, and a cooperative cone block 13 is arranged at the lower end position of the inner part of the filter cartridge body 6. A vertically arranged central air pipe 9 is installed at the center point of the cooperative cone block 13;

[0033] An ash collecting box 4 is arranged directly below the kettle body 1, and the lower end of the cooperative cone block 13 is rotatably connected to the ash collecting box 4, and the interior of the filter cartridge body 6 is connected to the interior of the ash collecting box 4 through the cooperative cone block 13;

[0034] A clean air bin is provided between the inner wall of the kettle body 1 and the outer wall of the filter cartridge body 6, and air blocking rings 14 are provided in the clean air bin at equal distances along the vertical direction. The air outlet 2 is communicated with the inside of the clean air bin, and the air inlet pipe 8 is branched, and one end of the air inlet pipe 8 is connected to the upper end of the filter cartridge body 6, and the other end of the air inlet pipe 8 is connected to the ash collecting box 4;

[0035] An aeration port 5 is installed at the lower end of the kettle body 1 corresponding to the clean air bin, and a plurality of groups of swing ball rods 18 are arranged on the outer wall of the central air pipe 9 .

[0036] Basic principle: The principle of exhaust gas filtration is basically the same. Take the filter cartridge body 6 in the present invention as an example. Figure 3 To explain, the exhaust gas is injected into the filter cartridge body 6 from the air inlet pipe 8. After the exhaust gas passes through the filter cartridge body 6, the impurities that may exist in it are directly screened out, and the filtered gas enters the clean gas bin. This part is the basic principle of filtration;

[0037] In the present invention, a central air pipe 9 is added inside the filter cartridge body 6. The central air pipe 9 is hollow inside and both ends are open. The purpose is to limit the flow direction of the exhaust gas. In combination with the smelting exhaust gas composition, the central air pipe 9 is used to initially limit the exhaust gas flow direction, and the cooperative cone block 13 drives the central air pipe 9 to rotate in a directional manner, and cooperates with the central air pipe 9 to drive the exhaust gas to flow in an annular manner to generate centrifugal force, thereby ensuring that impurities in the exhaust gas are concentrated inside the central air pipe 9, avoiding the impurities from directly acting on the filter cartridge body 6, and referring to Figure 6 The blocking block at the top of the positioning pin 10 can also be used as a counterweight block or a closing block to temporarily block the passage between the cooperative cone block 13 and the ash collecting box 4 to ensure that the clean air can only be discharged from the air outlet 2.

[0038] Embodiment 2: Supplementary explanation of the central air pipe in the filtering process of embodiment 1:

[0039] The cooperative cone block 13 is rotatably connected inside the filter cartridge body 6 through the driving assembly 3. A directional pin 17 corresponding to the central air pipe 9 is installed at the upper end of the filter cartridge body 6. The aeration port 5, the air outlet 2 and the air inlet pipe 8 are all provided with an electromagnetic valve 7. A metal billiard ball is provided at the lower end of the swing ball rod 18, and the upper end of the swing ball rod 18 is movably connected to the outer wall of the central air pipe 9. The outer diameter of the central air pipe 9 decreases from top to bottom, and the length of the swing ball rod 18 is greater than the distance between the outer wall of the central air pipe 9 and the inner wall of the filter cartridge body 6.

[0040] Solution description: In the initial state, the cooperative cone block 13 keeps rotating at a constant speed or low speed. The centrifugal force generated in this state is not enough to drive the swing ball rod 18 to move upward. In this state, the central air pipe 9 only serves to initially restrict the exhaust gas flow direction.

[0041] However, when the central air pipe 9 keeps rotating at a high speed, the centrifugal force it generates drives the swing ball rod 18 to move upward. For this purpose, the total length of the swing ball rod 18 needs to be limited. Specifically, the length of the swing ball rod 18 is greater than the distance between the outer wall of the central air pipe 9 and the inner wall of the filter cartridge body 6. As a result, the metal billiard ball at the end of the swing ball rod 18 will touch the inner wall of the filter cartridge body 6, and the metal billiard ball on the swing ball rod 18 is subjected to a reaction force after touching the inner wall of the filter cartridge body 6, causing the swing ball rod 18 to move downward. By analogy, the swing ball rod 18 hits the inner wall of the filter cartridge body 6 irregularly and intermittently. The purpose is to shake off impurities that may be attached to the inner wall of the filter cartridge body 6, and the shaken impurities are slowly accumulated in the cooperating cone block 13.

[0042] Embodiment 3: This embodiment is based on Embodiment 1 and provides a supplementary explanation of the cooperative cone block therein:

[0043] A vertically arranged top pin 10 is arranged in the cooperative cone block 13, a material blocking cone is arranged at the upper end of the top pin 10, and the lower end of the top pin 10 extends to the inner position of the ash collecting box 4 and is installed with a pressure plate 12, the outer diameter of the top pin 10 is smaller than the inner diameter of the cooperative cone block 13, and a diverter plate 11 is installed at the lower side of the pressure plate 12 in the ash collecting box 4, the cross section of the pressure plate 12 is in the shape of an upwardly curved arch, the cross section of the diverter plate 11 is in the shape of a downwardly curved arch, and a hole is opened at the center of the diverter plate 11;

[0044] The other end of the air inlet pipe 8 is located in the middle position between the diverter plate 11 and the pressure plate 12. A central guide rod 15 corresponding to the air blocking ring 14 is installed in the clean air chamber. The air blocking ring 14 and the central guide rod 15 are slidably connected, and the central guide rod 15 is located in the middle position of the adjacent air blocking ring 14 and is provided with a connecting spring 16.

[0045] First, the operating status of the overall device is explained in combination with Example 1 and Example 2:

[0046] State 1: The filtering capacity of the filter cartridge body 6 is in a normal state, so it is only ensured that the exhaust gas enters the filter cartridge body 6 from one end of the air inlet pipe 8, and the aeration port 5 and the other end of the air inlet pipe 8 are temporarily blocked by the solenoid valve 7, and the exhaust gas is discharged from the air outlet 2 after continuous filtration;

[0047] State 2: When the filtering capacity of the filter cartridge body 6 is reduced, the exhaust gas is still injected into the filter cartridge body 6, but the other end of the air inlet pipe 8 needs to be blocked by the solenoid valve 7. Then the exhaust gas can only enter the ash collecting box 4 first, and the pressure generated by the exhaust gas injection is used to push the blocking cone on the top pin 10 upward. Then the exhaust gas will still enter the filter cartridge body 6, and the aeration port 5 is still temporarily blocked by the solenoid valve 7.

[0048] State three: Based on state two, when the exhaust gas is injected in reverse, the solenoid valve 7 on the aeration port 5 can be opened to quickly fill in the external airflow to blow off the impurities attached to the inner wall of the filter cartridge body 6. After the filtering capacity of the filter cartridge body 6 is restored, the gas can still enter the clean air bin. The key is to make the impurities inside the filter cartridge body 6 slowly flow back into the ash collecting box 4.

[0049] As for the judgment method of states 1 to 3, it can be judged by real-time detection of the air pressure changes inside the clean air bin and the filter cartridge body 6, which will not be explained in this part;

[0050] It is particularly important to explain that the process of rapidly charging the aeration port 5 with external airflow is specifically to charge only the lower end of the clean air bin, because the blockage degree of the filter cartridge body 6 is also difficult to grasp in real time, which is specifically manifested in that the blockage degree of the local position of the filter cartridge body 6 is different. For this, multiple air blocking rings 14 are required, and the air blocking rings 14 can simultaneously meet the two processes of normal air outlet and aeration:

[0051] Normal air outlet process: Because a connecting spring 16 is arranged between each air blocking ring 14, the air blocking ring 14 maintains its initial position under its own gravity. When the exhaust gas enters the clean air bin after being filtered, it is affected by the blockage degree of the filter cartridge body 6 itself, and the amount of gas entering the two adjacent air blocking rings 14 is different. Because of the difference in gas volume, an upward thrust will be generated on the air blocking rings 14 at local positions. In the normal air outlet process, the air blocking rings 14 are not significantly utilized, but the setting position of the air outlet 2 is further restricted. The filtered exhaust gas can only be discharged from the upper end of the clean air bin. Assuming that the blockage degree at the lower side of the filter cartridge body 6 is larger, the exhaust gas can only be discharged from the upper side of the filter cartridge body 6, so that the gap between the two air blocking rings 14 at this position is larger. The key purpose is to autonomously change the air bin volume of the clean air bin in accordance with the filtering capacity of the filter cartridge body 6.

[0052] Aeration process: During the aeration process, the air outlet 2 is in a temporarily blocked state, so the gas injected from the aeration port first performs reverse airflow to the lower part of the filter cartridge body 6 to blow off impurities. It can be understood that: the air flow channel area in the overall filter cartridge body 6 is relatively small, so the continuously filled gas will continue to provide an upward thrust to the air blocking ring 14, and gradually blow off impurities from the overall filter cartridge body 6 one by one in reverse.

[0053] In summary: based on the filtering principle, the gas flow direction is improved, and based on the filter cartridge body, a freely rotatable central air pipe is added in its internal position, and multiple swing ball rods are added to the external position of the central air pipe. The centrifugal force generated during the rotation action drives the swing ball rod to swing by itself, mainly "knocking" the inner wall of the filter cartridge body to shake off the impurities that may be attached to the inner wall of the filter cartridge body, ensuring that the impurities continue to accumulate in the lower part of the filter cartridge body. On the basis of not affecting the normal operation of the filter cartridge body, active aeration and reverse airflow can be used to reflux the impurities inside the filter cartridge body and collect them in the ash collecting box. During the continuous operation of the device, internal cleaning can be performed without directly interfering with the operation status of the device.

[0054] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An environmentally friendly filtering device for waste gas from the smelting of waste battery plates, comprising a kettle body (1), a filter cartridge body (6), an air inlet pipe (8), a drive assembly (3) and an air outlet (2), characterized in that: The filter cartridge body (6) is installed in an internal position of the kettle body (1), and a cooperative cone block (13) is arranged at the lower end of the filter cartridge body (6), and a central air pipe (9) arranged vertically is installed at the center point of the cooperative cone block (13); A dust collecting box (4) is arranged directly below the kettle body (1), the lower end of the cooperative cone block (13) is rotatably connected to the dust collecting box (4), and the interior of the filter cartridge body (6) is connected to the interior of the dust collecting box (4) through the cooperative cone block (13); A clean air bin is provided between the inner wall of the kettle body (1) and the outer wall of the filter cartridge body (6), and air blocking rings (14) are provided in the clean air bin and are linearly and equidistantly arranged in the vertical direction. The air outlet (2) is communicated with the interior of the clean air bin, and the air inlet pipe (8) is branched, and one end of the air inlet pipe (8) is connected to the upper end of the filter cartridge body (6), and the other end of the air inlet pipe (8) is connected to the dust collecting box (4); The kettle body (1) is provided with an aeration port (5) at a position corresponding to the lower end of the clean air bin, the air outlet (2) is provided at a position corresponding to the upper end of the clean air bin, and a plurality of sets of swing ball rods (18) are provided on the outer wall of the central air pipe (9).

2. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 1, characterized in that: The cooperative cone block (13) is rotatably connected to the filter cartridge body (6) via the driving assembly (3), and a directional pin (17) corresponding to the central air pipe (9) is installed at the upper end of the filter cartridge body (6).

3. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 1, characterized in that: The aeration port (5), the air outlet (2) and the air inlet pipe (8) are all provided with a solenoid valve (7).

4. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 1, characterized in that: A metal ball is arranged at the lower end of the ball swing rod (18), and the upper end of the ball swing rod (18) is movably connected to the outer wall of the central air pipe (9).

5. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 4, characterized in that: The outer diameter of the central air pipe (9) decreases from top to bottom, and the length of the swing ball rod (18) is greater than the distance between the outer wall of the central air pipe (9) and the inner wall of the filter cartridge body (6).

6. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 1, characterized in that: The cooperative cone block (13) is provided with a vertically arranged top pin (10), the upper end of the top pin (10) is provided with a blocking cone, and the lower end of the top pin (10) extends to the inner position of the ash collecting box (4) and is installed with a pressure plate (12).

7. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 6, characterized in that: The outer diameter of the top pin (10) is smaller than the inner diameter of the cooperative cone block (13).

8. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 6, characterized in that: A diverter plate (11) is installed inside the dust collecting box (4) at a position below the pressure plate (12); the cross section of the pressure plate (12) is in the shape of an upwardly curved arch; the cross section of the diverter plate (11) is in the shape of a downwardly curved arch; and a hole is provided at the center of the diverter plate (11).

9. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 8, characterized in that: The other end of the air inlet pipe (8) is located in the middle of the flow dividing plate (11) and the pressure receiving plate (12).

10. The environmentally friendly filtering device for waste battery plate smelting exhaust gas according to claim 1, characterized in that: A central guide rod (15) corresponding to the air blocking ring (14) is installed in the clean air bin. The air blocking ring (14) and the central guide rod (15) are slidably connected, and a connecting spring (16) is arranged on the central guide rod (15) at a middle position between adjacent air blocking rings (14).

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