Tail gas filtering tank

Abstract

The utility model provides a tail gas filtering tank. The tail gas filtering tank comprises a tank body, wherein the tank body is provided with a containing cavity, at least one first gas inlet, at least one second gas inlet and at least one gas outlet; the filter bag assembly is arranged in the accommodating cavity, and the filter bag assembly comprises a plurality of filter bags; the plurality of filter bags are respectively communicated with the first air inlet through the filter bag assembly; the vibration assembly is arranged on the tank body, and at least one part of the vibration assembly extends into the accommodating cavity and is connected with the connecting assembly so as to drive at least one part of the connecting assembly and at least one part of the filter bag assembly to vibrate. The filter tank solves the problems of difficulty in cleaning and poor cleaning effect of the filter tank in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of battery production equipment, in particular to an exhaust gas filtering tank. Background Art

[0002] The evacuation system used in single crystal ingot pulling consists of a filter tank, a dry pump, and exhaust gas treatment piping. During the single crystal ingot pulling process, gases generated by the continuous reaction between the molten silicon and the quartz crucible, harmful gases in the molten silicon, and reactions between thermal field components and the surrounding atmosphere are all discharged through the filter tank and the dry pump under the purge of inert argon gas, ultimately being exhausted from the entire single crystal production system.

[0003] The filter tank can filter out most particulate matter. During the entire single crystal silicon rod pulling process, oxides continue to accumulate in the filter tank. The filter tank is not opened for cleaning until the furnace production cycle ends. The filter tanks currently used are all vibrating harmonic filter tanks. During production, the filter bag in the filter tank periodically vibrates under the action of a cylinder or electromagnetic force, causing particulate matter accumulated on the filter bag to fall off.

[0004] Cleaning the filter tank requires manual removal of oxides from the tank cavity using an evacuation tube, followed by repeated manual vibration of the filter bag to shake off any attached oxides. This cleaning process is dusty and dirty, and difficult to completely clean. Whether the filter tank is thoroughly cleaned directly affects the normal operation of the furnace during the next cycle. Incomplete cleaning can result in excessive dry pump load at the start of the furnace, affecting the cycle and potentially compromising ingot quality.

[0005] Therefore, there are problems in the prior art that the filter tank is difficult to clean and the cleaning effect is poor. Utility Model Content

[0006] The main purpose of the utility model is to provide a tail gas filter canister to solve the problems of difficult cleaning and poor cleaning effect of the filter canister in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an exhaust gas filter tank is provided, comprising: a tank body, the tank body having a accommodating cavity and at least one first air inlet, a second air inlet and an air outlet respectively connected to the accommodating cavity; a filter bag assembly, the filter bag assembly is arranged inside the accommodating cavity, and the filter bag assembly includes a plurality of filter bags; a connecting assembly, the plurality of filter bags are respectively connected to the first air inlet through the filter bag assembly; a vibration assembly, the vibration assembly is arranged on the tank body, and at least a portion of the vibration assembly extends into the interior of the accommodating cavity and is connected to the connecting assembly, so as to drive at least a portion of the connecting assembly and at least a portion of the filter bag assembly to vibrate.

[0008] Furthermore, the connecting assembly includes: a connecting pipe, one end of which is connected to the first air inlet; an air intake bolt, the number of which is the same as that of the filter bag and corresponds one to one, one end of which extends into the interior of the filter bag and the other end of which is connected to the connecting pipe.

[0009] Furthermore, the connecting pipeline includes: at least one fixed pipeline, the air intake bolt and the vibration assembly are respectively connected to the fixed pipeline; and at least one flexible pipeline, the fixed pipeline is connected to the first air inlet through the flexible pipeline.

[0010] Furthermore, the first air inlet, the fixed pipeline, and the flexible pipeline are all multiple and correspond one to one. The multiple filter bags of the filter bag assembly are divided into multiple groups, and each group of filter bags corresponds to a different fixed pipeline.

[0011] Furthermore, in the axial direction of the tank body, the plurality of first air inlets have the same height, and the plurality of first air inlets are arranged at intervals around the circumferential side wall of the tank body.

[0012] Furthermore, the connecting assembly further includes mounting plates, and each air intake bolt is connected to the filter bag via at least two mounting plates.

[0013] Furthermore, the air intake bolt has a hollow cavity inside, and both ends of the air intake bolt respectively have at least one communicating hole communicating with the hollow cavity.

[0014] Furthermore, one end of the air intake bolt connected to the connecting pipe has a connecting hole, and the connecting pipe is connected to the hollow cavity through the connecting hole; the end of the air intake bolt away from the connecting pipe has multiple connecting holes, and the multiple connecting holes are arranged at intervals.

[0015] Furthermore, an angle greater than 0 degrees and less than 90 degrees is formed between the gas outlet direction of the plurality of communication holes at one end of the air intake bolt away from the connecting pipeline and the axial direction of the air intake bolt.

[0016] Furthermore, in the axial direction of the tank body, the first air inlet is located above the second air inlet; and / or the length direction of the filter bag is the same as the axial direction of the tank body; and / or the lower end of the filter bag is connected to the tank body; and / or the circumferential side wall of the tank body close to the bottom surface of the tank body has at least one cleaning port.

[0017] Applying the technical solution of the present utility model, the exhaust gas filter canister in the present application includes a canister body, a filter bag assembly, a connecting assembly, and a vibration assembly. The canister body has a receiving cavity and at least one first air inlet, a second air inlet, and an air outlet respectively connected to the receiving cavity; the filter bag assembly is disposed within the receiving cavity and includes a plurality of filter bags; the plurality of filter bags are respectively connected to the first air inlet through the filter bag assembly; the vibration assembly is disposed on the canister body, and at least a portion of the vibration assembly extends into the receiving cavity and is connected to the connecting assembly to drive at least a portion of the connecting assembly and at least a portion of the filter bag assembly to vibrate.

[0018] When the exhaust gas filter tank in the present application is used, the gas to be filtered can enter the holding cavity of the tank body through the second air inlet and be discharged from the filter tank through the air outlet after the filtration is completed. In addition, when the exhaust gas filter tank is working, the vibration assembly can also drive the connecting assembly and the filter bag assembly to vibrate along the axial direction of the tank body. When cleaning the exhaust gas filter tank, compressed air can be introduced into the connecting assembly through the first air inlet, thereby achieving the purge of the holding cavity and the filter bag of the filter bag assembly, thereby ensuring that the cleaning of the interior of the tank body is more thorough and cleaner, and avoiding the problem of continuous enrichment of oxides and erosion of the filter bag, which causes the life of the filter bag to be shortened. Therefore, the exhaust gas filter tank in the present application effectively solves the problems of difficult cleaning of the filter tank and poor cleaning effect in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of an exhaust gas filter tank according to a specific embodiment of the present utility model is shown;

[0021] Figure 2 Shown Figure 1 Schematic diagram of the internal structure of the exhaust gas filter tank;

[0022] Figure 3 Shown Figure 1 Schematic diagram of the positional relationship between the filter bag, intake bolts and fixing pipes of the exhaust filter canister;

[0023] Figure 4 Shown Figure 1 Schematic diagram of the positional relationship between the filter bag, intake bolts and mounting plate of the exhaust filter canister;

[0024] Figure 5 Shown Figure 1 Schematic diagram of the structure of the intake bolt of the exhaust filter tank.

[0025] The above drawings include the following reference numerals:

[0026] 10. Tank body; 11. First air inlet; 12. Second air inlet; 13. Air outlet; 14. Dust removal port; 20. Filter bag assembly; 21. Filter bag; 30. Connecting assembly; 31. Connecting pipe; 311. Fixing pipe; 32. Air intake bolt; 321. Connecting hole; 33. Mounting plate; 40. Vibration assembly. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0030] In order to solve the problems of difficulty in cleaning the filter canister and poor cleaning effect in the prior art, the present application provides an exhaust gas filter canister.

[0031] like Figures 1 to 5 As shown, the exhaust gas filter canister in the present application includes a canister body 10, a filter bag assembly 20, a connecting assembly 30 and a vibration assembly 40. The canister body 10 has a receiving cavity and at least one first air inlet 11, a second air inlet 12 and an air outlet 13 respectively connected to the receiving cavity; the filter bag assembly 20 is arranged inside the receiving cavity, and the filter bag assembly 20 includes a plurality of filter bags 21; the plurality of filter bags 21 are respectively connected to the first air inlet 11 through the filter bag assembly 20; the vibration assembly 40 is arranged on the canister body 10, and at least a portion of the vibration assembly 40 extends into the interior of the receiving cavity and is connected to the connecting assembly 30, so as to drive at least a portion of the connecting assembly 30 and at least a portion of the filter bag assembly 20 to vibrate.

[0032] When the exhaust gas filter tank in the present application is used, the gas to be filtered can enter the accommodating cavity of the tank body 10 through the second air inlet 12 and be discharged from the filter tank through the air outlet 13 after the filtration is completed. In addition, when the exhaust gas filter tank is working, the vibration component 40 can also drive the connecting component 30 and the filter bag component 20 to vibrate along the axial direction of the tank body 10. When cleaning the exhaust gas filter tank, compressed air can be introduced into the connecting component 30 through the first air inlet 11, thereby achieving the purge of the accommodating cavity and the filter bag 21 of the filter bag component 20, thereby ensuring that the cleaning of the interior of the tank body 10 is more thorough and cleaner, and avoiding the problem of continuous enrichment and erosion of the filter bag 21 by oxides, resulting in a decrease in the life of the filter bag 21. Therefore, the exhaust gas filter tank in the present application effectively solves the problems of difficult cleaning of the filter tank and poor cleaning effect in the prior art.

[0033] That is, in the present application, the first air inlet 11 is used to introduce compressed air to purge the interior of the tank 10 and the filter bag 21. The second air inlet 12 is used to introduce the gas to be filtered.

[0034] Specifically, if Figures 2 to 5 As shown, the connecting assembly 30 includes a connecting pipe 31 and an air inlet bolt 32. One end of the connecting pipe 31 is connected to the first air inlet port 11. The number of the air inlet bolts 32 is the same as that of the filter bags 21, and they correspond one to one. One end of the air inlet bolt 32 extends into the interior of the filter bag 21, and the other end of the air inlet bolt 32 is connected to the connecting pipe 31. The provision of the air inlet bolt 32 not only secures the connecting pipe 31 to the filter bag 21, thereby ensuring that the filter bag 21 can vibrate with the connecting pipe 31 without being separated from the connecting pipe 31, but also ensures that after the compressed air enters the connecting pipe 31 through the first air inlet port 11, the connecting pipe 31 can discharge the gas into the interior of the filter bag 21 through the air inlet bolt 32, thereby achieving a purging effect on the filter bag 21.

[0035] Specifically, if Figure 1 and Figure 3 As shown, the connecting pipeline 31 includes at least one fixed pipeline 311 and at least one flexible pipeline. The air intake bolt 32 and the vibration assembly 40 are respectively connected to the fixed pipeline 311; the fixed pipeline 311 is connected to the first air inlet 11 through the flexible pipeline. By providing the fixed pipeline 311, the connection stability between the vibration assembly 40, the connecting assembly 30 and the filter bag assembly 20 can be ensured. By providing the flexible pipeline, it can be ensured that when the fixed pipeline 311 drives the filter bag 21 to vibrate together, the fixed pipeline 311 can achieve a stable connection with the first air inlet 11 through the flexible pipeline. Therefore, in the present application, the flexible pipeline can produce a certain deformation or stretching during the vibration of the fixed pipeline 311. In a specific embodiment of the present application, the flexible pipeline can be a metal hose. Of course, other materials can also be selected as the manufacturing material of the flexible pipeline according to actual usage.

[0036] Preferably, the first air inlet 11, the fixed pipeline 311, and the flexible pipeline are all multiple and correspond one to one. The multiple filter bags 21 of the filter bag assembly 20 are divided into multiple groups, and each group of filter bags 21 corresponds to a different fixed pipeline 311. Further preferably, the number of filter bags 21 in each group is the same, and the outline of the shape formed by all the filter bags 21 is approximately circular or similar to the shape of the accommodating cavity of the tank body 10. That is, in this embodiment, multiple filter bags 21 are respectively provided on each fixed pipeline 311, and each fixed pipeline 311 is respectively connected to the corresponding first air inlet 11 via a corresponding flexible pipeline. This arrangement ensures that the filter bags 21 are purged more evenly, thereby improving the cleaning effect of the filter bags 21 and the interior of the tank body 10, thereby improving the performance of the exhaust gas filter tank. Moreover, this grouping design enables the exhaust gas filter tank to handle a larger flow of exhaust gas. At the same time, when some filter bags 21 need maintenance or replacement, other filter bags 21 can continue to work, ensuring the needs of continuous production. It is suitable for large factories or high-load operation environments.

[0037] Optionally, in the axial direction of the tank body 10, the plurality of first air inlets 11 are of the same height and are spaced apart around the circumferential sidewall of the tank body 10. Since the fixed pipe 311 drives the filter bag assembly 20 to vibrate together with it under the action of the vibration assembly 40 during use, this arrangement not only ensures the stability of the connection between the fixed pipe 311, the flexible pipe, and the first air inlet 11, but also ensures that different fixed pipes 311 do not interfere with each other, and ensures the stability of the connection between the fixed pipe 311 and the vibration assembly 40.

[0038] Alternatively, as Figure 4 As shown, the connection assembly 30 further includes mounting plates 33. Each intake bolt 32 is connected to the filter bag 21 via at least two mounting plates 33. This arrangement ensures the stability of the connection between the intake bolt 32 and the filter bag 21. Furthermore, in this application, the two mounting plates 33 can be pressed together by the intake bolt 32.

[0039] Specifically, the air intake bolt 32 has a hollow cavity inside, and at each end of the air intake bolt 32, there is at least one communication hole 321 that communicates with the hollow cavity. The provision of the hollow cavity effectively ensures that gas can enter the filter bag 21 through the air intake bolt 32. In other words, in this application, the air intake bolt 32 not only serves to connect and fix the filter bag, but also connects the filter bag 21 to the fixed pipeline 311.

[0040] Optionally, the end of the air intake bolt 32 connected to the connecting pipe 31 has a connecting hole 321, and the connecting pipe 31 communicates with the hollow cavity through the connecting hole 321. The end of the air intake bolt 32 remote from the connecting pipe 31 has multiple connecting holes 321, with the multiple connecting holes 321 spaced apart. Preferably, the outlet direction of the multiple connecting holes 321 at the end of the air intake bolt 32 remote from the connecting pipe 31 forms an angle greater than 0 degrees and less than 90 degrees with the axial direction of the air intake bolt 32. This arrangement ensures that after the gas is discharged into the filter bag 21 through the multiple connecting holes 321 at the end of the air intake bolt 32 extending into the filter bag 21, it can more evenly purge the circumferential inner wall and bottom of the filter bag 21, thereby effectively ensuring a purge effect on the filter bag 21. In a specific embodiment of the present application, the end of the air intake bolt 32 remote from the connecting pipe 31 has four connecting holes 321.

[0041] Optionally, in the axial direction of the tank body 10, the first air inlet 11 is located above the second air inlet 12; and the length direction of the filter bag 21 is aligned with the axial direction of the tank body 10. Of course, the specific locations of the first air inlet 11 and the second air inlet 12, as well as the arrangement of the filter bag 21, can be adaptively adjusted according to actual usage.

[0042] Optionally, the lower end of the filter bag 21 is connected to the tank body 10. This arrangement can effectively prevent the plurality of filter bags 21 from being entangled with each other, thereby ensuring the performance of the exhaust gas filter tank.

[0043] Specifically, the portion of the circumferential side wall of the tank body 10 close to the bottom surface of the tank body 10 has at least one cleaning port 14. This arrangement ensures that the operator can clean the interior of the tank body 10 through the cleaning port 14.

[0044] Moreover, in the present application, the vibration assembly 40 can be driven by a cylinder to achieve vibration of the fixed pipeline 311 and the filter bag 21. Of course, other devices can also be selected as the vibration assembly 40 according to actual usage, as long as the filter bag 21 can be vibrated.

[0045] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0046] 1. By designing the connection assembly and the first air inlet, the filter bag can be purged when the filter tank is cleaned, making the cleaning inside the tank more thorough. At the same time, it avoids the problem of incomplete cleaning of the filter tank due to negligence of personnel, which affects the operation of the next cycle;

[0047] 2. After adding the purge function to the filter bag, the risk of continuous accumulation of oxides on the filter bag and erosion of the filter bag is solved, and the service life of the filter bag is extended.

[0048] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An exhaust gas filter tank, characterized in that: include: A tank body (10), the tank body (10) having a receiving cavity and at least one first air inlet (11), a second air inlet (12), and an air outlet (13) respectively connected to the receiving cavity; A filter bag assembly (20), the filter bag assembly (20) being arranged inside the accommodating cavity, and the filter bag assembly (20) comprising a plurality of filter bags (21); A connecting assembly (30), wherein the plurality of filter bags (21) are respectively connected to the first air inlet (11) through the filter bag assembly (20); A vibration assembly (40), wherein the vibration assembly (40) is arranged on the tank body (10), and at least a portion of the vibration assembly (40) extends into the interior of the accommodating cavity and is connected to the connecting assembly (30) to drive at least a portion of the connecting assembly (30) and at least a portion of the filter bag assembly (20) to vibrate.

2. The exhaust gas filter tank according to claim 1, characterized in that: The connecting assembly (30) comprises: a connecting pipe (31), one end of the connecting pipe (31) being connected to the first air inlet (11); An air intake bolt (32), wherein the number of the air intake bolts (32) is the same as that of the filter bag (21) and the number corresponds one to one, one end of the air intake bolt (32) extends into the interior of the filter bag (21), and the other end of the air intake bolt (32) is connected to the connecting pipe (31).

3. The exhaust gas filter tank according to claim 2, characterized in that: The connecting pipeline (31) comprises: at least one fixed pipeline (311), the air intake bolt (32) and the vibration assembly (40) being respectively connected to the fixed pipeline (311); At least one flexible pipeline, the fixed pipeline (311) is connected to the first air inlet (11) through the flexible pipeline.

4. The exhaust gas filter tank according to claim 3, characterized in that: The first air inlet (11), the fixed pipeline (311), and the flexible pipeline are all multiple and correspond one to one. The multiple filter bags (21) of the filter bag assembly (20) are divided into multiple groups, and each group of filter bags (21) corresponds to a different fixed pipeline (311).

5. The exhaust gas filter tank according to claim 4, characterized in that: In the axial direction of the tank body (10), the plurality of first air inlets (11) have the same height, and the plurality of first air inlets (11) are arranged at intervals around the circumferential side wall of the tank body (10).

6. The exhaust gas filter tank according to claim 2, characterized in that: The connection assembly (30) further comprises a mounting plate (33), and each of the air intake bolts (32) is connected to the filter bag (21) via at least two of the mounting plates (33).

7. The exhaust gas filter tank according to claim 2, characterized in that: The air intake bolt (32) has a hollow cavity inside, and both ends of the air intake bolt (32) respectively have at least one communication hole (321) communicating with the hollow cavity.

8. The exhaust gas filter tank according to claim 7, characterized in that: One end of the air intake bolt (32) communicating with the connecting pipe (31) has a communicating hole (321), and the connecting pipe (31) is communicated with the hollow cavity through the communicating hole (321); The air intake bolt (32) has a plurality of communication holes (321) at one end away from the connecting pipe (31), and the plurality of communication holes (321) are arranged at intervals.

9. The exhaust gas filter canister according to claim 8, characterized in that: An angle greater than 0 degrees and less than 90 degrees is formed between the gas outlet direction of the plurality of communicating holes (321) at one end of the air intake bolt (32) away from the connecting pipe (31) and the axial direction of the air intake bolt (32).

10. The exhaust gas filter canister according to any one of claims 1 to 9, characterized in that: In the axial direction of the tank body (10), the first air inlet (11) is located above the second air inlet (12); and / or The length direction of the filter bag (21) is the same as the axial direction of the tank body (10); and / or The lower end of the filter bag (21) is connected to the tank body (10); and / or A portion of the circumferential side wall of the tank body (10) close to the bottom surface of the tank body (10) has at least one ash cleaning port (14).

Images