An industrial waste gas treatment and purification device

Abstract

This utility model discloses an industrial waste gas treatment and purification device, comprising: a connecting bend, a filter groove at the top of one end of the connecting bend, a filter frame inserted inside the filter groove and a filter screen fixedly embedded inside the filter frame, a cleaning groove at the bottom of one end of the connecting bend, a cleaning frame inserted inside the cleaning groove and a cleaning brush fixedly attached to one side of the cleaning groove, an installation groove at the side of one end of the connecting bend, an installation strip snapped into the installation groove, a spray pipe fixedly inserted inside the installation strip, a connecting plate fixedly attached to the bottom outer end of the installation strip, and a spray box fixedly attached to the outer side of the connecting plate. In this utility model, the installation strip adopts a quick-installation structure of tension spring and fixed insertion rod, which, together with the retractable handle, enables quick disassembly and assembly of the spray pipe. Compared with the traditional method of requiring machine shutdown for disassembly and maintenance, this design significantly shortens maintenance time, reduces manpower input, and avoids damage to the equipment's sealing performance caused by frequent disassembly.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, specifically an industrial waste gas treatment and purification device. Background Technology

[0002] In industrial production processes, the environmental pollution caused by waste gas emissions is becoming increasingly prominent. In order to meet environmental protection regulations and reduce the impact of waste gas on the ecological environment and human health, industrial waste gas treatment and purification devices have become essential equipment for various production enterprises.

[0003] Existing Chinese patent document CN217188665U discloses an industrial waste gas treatment and purification device, including a bracket, a support frame, and a connecting frame. There are two brackets, with support frames connected to both the front and rear sides of the two brackets. The two support frames are symmetrical, and a connecting frame connects them. By rotating two threaded rods, the two rods move towards each other, thereby pressing two wedge-shaped blocks towards each other. Two springs are compressed. After the two wedge-shaped blocks disengage from their respective slots, the filter screen can be removed and cleaned. This simple operation achieves the effect of cleaning the filter screen. However, this industrial waste gas treatment and purification device still has shortcomings: its spray structure is a fixed connection, making disassembly and assembly difficult. When it is necessary to change the treatment medium or maintain core components according to the composition of different industrial waste gases, it is necessary to shut down and disassemble a large number of structures, which not only consumes a lot of manpower and time costs but also seriously affects the continuity of production. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the spray structure of the above-mentioned industrial waste gas treatment and purification device is fixed and difficult to disassemble and assemble. When it is necessary to change the treatment medium or maintain the core components according to the composition of different industrial waste gases, it is necessary to shut down and disassemble a large number of structures, which not only consumes a lot of manpower and time costs, but also seriously affects the continuity of production. Therefore, this utility model provides an industrial waste gas treatment and purification device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an industrial waste gas treatment and purification device, comprising: a connecting bend, a filter groove is provided at the top of one end of the connecting bend, a filter frame is inserted inside the filter groove and a filter screen is fixedly embedded inside it, a cleaning groove is provided at the bottom of one end of the connecting bend, a cleaning frame is inserted inside the cleaning groove and a cleaning brush is fixedly connected to one side therein, a moisture-absorbing plate is inserted into the side of the other end of the connecting bend, an exhaust fan is installed at the end face of the connecting bend, an installation groove is provided at the side of one end of the connecting bend, an installation strip is snapped into the installation groove, a spray pipe is fixedly inserted inside the installation strip, a connecting plate is fixedly connected to the bottom of the outer side of the installation strip, a spray box is fixedly connected to the outer side of the connecting plate, a suction pump is provided at the top of the spray box, and a drain port is connected through the bottom of the bend of the connecting bend.

[0006] As a further improvement of this utility model: the cleaning frame can be flexibly pulled out of the connecting bend pipe along the direction of the cleaning groove, the end of the cleaning brush contacts the filter screen, and the filter screen can be cleaned during the reciprocating pulling process. The top and bottom of the cleaning frame are both fixedly connected with a top cover plate and a bottom cover plate to ensure the sealing of the connecting bend pipe wall when the cleaning frame is placed in it and when it is completely pulled out.

[0007] As a further improvement of this utility model: the exhaust fan draws air from the inside out, so that the exhaust gas passes through the filter screen, spray pipe and moisture absorption plate in sequence.

[0008] As a further embodiment of this utility model: the mounting strip has a through hole extending horizontally, and two sets of fixed rods are symmetrically and movably inserted inside the through hole. A tension spring is connected between the two sets of fixed rods. Four sets of fixed slots are symmetrically opened on both sides inside the mounting groove. The fixed rods are always pressed against the inside of the fixed slots under the action of the tension spring.

[0009] As a further improvement of this utility model: two sets of through holes are provided, symmetrically opened at both ends of the mounting strip. Each set of through holes is equipped with a tension spring and two sets of fixing rods. The ends of the two sets of fixing rods on the same side are fixed with the same set of retraction handles. A retraction groove is provided through one side of each set of through holes.

[0010] As a further embodiment of this utility model: the spray box, the suction pump and the spray pipe are interconnected, and the top and side of the spray box are provided with water inlet and water outlet structures.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the cleaning frame and cleaning tank are plugged in and the cleaning brush and filter screen are in close contact, so the filter screen can be cleaned without disassembling the whole device. At the same time, the top plate and bottom plate cover ensure airtightness during the cleaning process.

[0013] 2. The installation strip in this utility model adopts a quick-installation structure of tension spring and fixed plug, which, together with the retractable handle, enables quick disassembly and assembly of the spray pipe. Compared with the traditional equipment that requires shutdown for disassembly and maintenance, this design significantly shortens maintenance time, reduces manpower input, and avoids damage to the equipment's sealing performance caused by frequent disassembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an industrial waste gas treatment and purification device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the filter frame in the industrial waste gas treatment and purification device described in this utility model;

[0016] Figure 3 This is a schematic diagram of the cleaning frame in an industrial waste gas treatment and purification device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the installation strip in an industrial waste gas treatment and purification device according to the present invention;

[0018] Figure 5 This is a schematic diagram of the spray box in an industrial waste gas treatment and purification device according to the present invention.

[0019] In the diagram: 1. Connecting bend; 2. Filter tank; 3. Filter frame; 4. Filter screen; 5. Cleaning tank; 6. Cleaning frame; 7. Cleaning brush; 8. Top cover plate; 9. Bottom cover plate; 10. Absorbent plate; 11. Exhaust fan; 12. Mounting slot; 13. Mounting strip; 14. Through-hole; 15. Fixing rod; 16. Tension spring; 17. Fixing slot; 18. Retractable handle; 19. Retractable slot; 20. Connecting plate; 21. Spray box; 22. Suction pump; 23. Spray pipe; 24. Drain outlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5 In this embodiment of the present invention, an industrial waste gas treatment and purification device includes: a connecting bend 1, a filter groove 2 is provided at the top of one end of the connecting bend 1, a filter frame 3 is inserted inside the filter groove 2 and a filter screen 4 is fixedly embedded inside it, a cleaning groove 5 is provided at the bottom of one end of the connecting bend 1, a cleaning frame 6 is inserted inside the cleaning groove 5 and a cleaning brush 7 is fixedly connected to one side of it, a moisture-absorbing plate 10 is inserted on the side of the other end of the connecting bend 1, an exhaust fan 11 is installed on the end face of the connecting bend 1, an installation groove 12 is provided on the side of one end of the connecting bend 1, an installation strip 13 is snapped into the installation groove 12, a spray pipe 23 is fixedly inserted inside the installation strip 13, a connecting plate 20 is fixedly connected to the bottom of the outer side of the installation strip 13, a spray box 21 is fixedly connected to the outer side of the connecting plate 20, a suction pump 22 is provided at the top of the spray box 21, and a drain port 24 is connected through the bottom of the bend of the connecting bend 1.

[0023] Reference Figures 1 to 3 The cleaning frame 6 can be flexibly pulled out of the connecting bend 1 along the direction of the cleaning groove 5. The end of the cleaning brush 7 contacts the filter screen 4 and can clean the filter screen 4 during the reciprocating pulling process. The top and bottom of the cleaning frame 6 are fixed with a top cover plate 8 and a bottom cover plate 9 to ensure the sealing of the pipe wall of the connecting bend 1 when the cleaning frame 6 is placed in it and when it is completely pulled out.

[0024] The above solution employs a plug-in connection between the cleaning frame 6 and the cleaning tank 5, allowing cleaning operations to be completed without disassembling the entire device, significantly simplifying the maintenance process. The tight contact design between the cleaning brush 7 and the filter screen 4 ensures that dust, particulate matter, and other impurities attached to the filter screen can be effectively removed during the extraction process, preventing the filter screen from affecting the exhaust gas treatment efficiency due to clogging. The top cover plate 8 and the bottom cover plate 9 adopt a sealing structure that matches the inner wall of the connecting bend 1. When the cleaning frame 6 is in the working position, it can prevent exhaust gas from leaking from the cleaning tank 5. When the cleaning frame 6 is completely extracted for cleaning or replacement, the airtightness inside the connecting bend 1 can still be guaranteed, ensuring the continuity and safety of the exhaust gas treatment process.

[0025] Reference Figure 1 and Figure 4 The exhaust fan 11 draws air from the inside out, causing the exhaust gas to pass through the filter screen 4, the spray pipe 23 and the moisture absorption plate 10 in sequence.

[0026] The above-mentioned scheme involves the exhaust gas first passing through filter screen 4, which initially filters out large particulate impurities, reducing the burden on subsequent treatment stages. Then, it passes through spray pipe 23, where it comes into full contact with the spray liquid, dissolving or adsorbing harmful gases and some fine particulate matter in the exhaust gas, achieving deep purification. Finally, it passes through moisture-absorbing plate 10, which removes excess moisture generated by spraying, preventing the emission of humid exhaust gas from affecting the environment or subsequent equipment. This multi-step, progressive treatment process can significantly improve the exhaust gas purification effect, ensuring that the emitted gas is more in line with environmental protection standards. At the same time, the exhaust direction of exhaust fan 11 keeps the entire treatment process under negative pressure, which can effectively prevent exhaust gas leakage and improve the safety of the device.

[0027] Reference Figure 4 and Figure 5 The mounting strip 13 has a through-hole 14 extending horizontally. Two sets of fixing rods 15 are symmetrically inserted inside the through-hole 14. A tension spring 16 connects the two sets of fixing rods 15. Four sets of fixing slots 17 are symmetrically opened on both sides inside the mounting groove 12. The fixing rods 15 are always pressed against the inside of the fixing slots 17 under the action of the tension spring 16. There are two sets of through-holes 14, which are symmetrically opened at both ends of the mounting strip 13. Each set of through-holes 14 is equipped with a tension spring 16 and two sets of fixing rods 15. The ends of the two sets of fixing rods 15 on the same side are fixed with the same set of retractable handles 18. A retractable groove 19 is opened through one side inside the two sets of through-holes 14.

[0028] The above solution ensures that the tension spring 16 keeps the fixing rod 15 in close contact with the fixing slot 17, preventing the mounting strip 13 from loosening or falling off during operation and ensuring the stable operation of the spray pipe 23. It also allows for convenient and quick assembly and disassembly, enhancing the flexibility of the device. The design of the retractable handle 18 allows the operator to quickly disassemble the mounting strip 13 by squeezing the fixing rod 15 to compress the tension spring 16 and remove it from the fixing slot 17. This saves time and labor costs for the maintenance, cleaning, or replacement of the spray pipe 23.

[0029] Reference Figure 5 The spray box 21, the suction pump 22 and the spray pipe 23 are interconnected, and the top and side of the spray box 21 are provided with water inlet and water outlet structures.

[0030] The above scheme employs a suction pump 22 to provide power for the delivery of the spray liquid, pressurizing the treatment liquid in the spray box 21 and delivering it to the spray pipe 23. This allows the spray liquid to be sprayed evenly at a suitable pressure and flow rate, ensuring full contact with the exhaust gas and improving purification efficiency. The inlet at the top of the spray box 21 facilitates the replenishment of new treatment liquid, while the outlet on the side facilitates the discharge of used waste liquid. This enables timely replacement and recycling of the treatment liquid, ensuring both spraying effectiveness and resource conservation and environmental protection. This structural design makes the operation and maintenance of the spray system more convenient, allowing for the replacement of appropriate treatment liquids at any time according to different exhaust gas compositions, thus enhancing the adaptability of the device to different types of exhaust gases.

[0031] The working principle of this utility model is as follows: First, after the device is started, the exhaust fan 11, as the power source, draws air from the inside out, forming a stable negative pressure airflow inside the connecting bend 1. This negative pressure environment can not only actively guide industrial waste gas into the device, but also effectively prevent waste gas from leaking from the gaps in the device during the treatment process, ensuring operational safety. Under the action of negative pressure, the waste gas is directed to the air inlet end of the connecting bend 1 and first contacts the filter screen 4. The filter screen 4 is fixedly embedded in the filter frame 3 inserted into the filter tank 2. Its core function is to perform preliminary purification of the waste gas, intercepting large particles of dust, solid impurities, etc., to prevent such impurities from entering the subsequent treatment process and causing equipment blockage or affecting the purification effect, thus reducing the treatment burden of the subsequent spray system.

[0032] To ensure the continuous and efficient operation of the filter screen 4, the self-cleaning structure consisting of the cleaning frame 6 and the cleaning brush 7 plays a key role. The cleaning frame 6 can be flexibly pulled along the cleaning groove 5, and the cleaning brush 7 on one side is in close contact with the filter screen 4. The operator can effectively remove the impurities attached to the filter screen by repeatedly pulling the cleaning frame 6. At the same time, the top cover plate 8 and the bottom cover plate 9 of the cleaning frame 6 adopt a sealing design that matches the inner wall of the connecting bend 1, so that the airtightness of the connecting bend 1 can be guaranteed whether the cleaning frame is in the working position or in the pulled-out state.

[0033] The pre-filtered exhaust gas continues to flow to the spray pipe 23 under negative pressure. The spray pipe 23 is fixedly inserted into the mounting strip 13, which is snapped into the mounting groove 12. The mounting strip 13 achieves stable installation and convenient disassembly through a unique fixing structure. The tension spring 16 in the through hole 14 always pushes the fixing rod 15 against the fixing slot 17 of the mounting groove 12, ensuring that the mounting strip 13 and the spray pipe 23 do not loosen during operation. For maintenance, squeezing the retraction handle 18 will drive the fixing rod 15 to compress the spring and disengage it from the slot, allowing for quick removal of the mounting strip. When the spray system is working, the suction pump 22 will... After being pressurized, the treatment liquid in the spray box 21 is transported to the spray pipe 23, so that the treatment liquid is sprayed evenly at a suitable pressure and flow rate, and fully contacts the exhaust gas. Through dissolution and adsorption, harmful gases and fine particulate matter in the exhaust gas are removed, achieving deep purification. The waste liquid and condensate generated during the spraying process will be collected at the bend of the connecting bend pipe 1 and finally discharged through the drain port 24 to avoid the accumulation of liquid affecting the operation of the device. In addition, the water inlet at the top of the spray box 21 is convenient for replenishing new treatment liquid, and the water outlet on the side is convenient for discharging waste liquid. The treatment liquid can be flexibly changed according to the composition of the exhaust gas, enhancing the adaptability of the device.

[0034] The exhaust gas that has completed the spray purification still contains a certain amount of moisture, and will continue to flow to the moisture-absorbing plate 10 at the other end of the connecting bend 1. The moisture-absorbing plate is installed by insertion, which is convenient for later replacement. The moisture-absorbing plate 10 absorbs the excess moisture in the exhaust gas, so that the final emitted gas meets the dry and clean environmental protection standards. In the entire process, the design of each structure not only ensures the graded and progressive effect of exhaust gas treatment, but also realizes convenient maintenance through plug-in and spring fixing structures, taking into account both purification efficiency and operability.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An industrial waste gas treatment and purification device, comprising: The connecting bend (1) is characterized in that a filter groove (2) is provided at the top of one end of the connecting bend (1), a filter frame (3) is inserted inside the filter groove (2) and a filter screen (4) is fixedly embedded inside it, a cleaning groove (5) is provided at the bottom of one end of the connecting bend (1), a cleaning frame (6) is inserted inside the cleaning groove (5) and a cleaning brush (7) is fixedly connected to one side therein, a moisture-absorbing plate (10) is inserted on the side of the other end of the connecting bend (1), and an exhaust fan is installed on the end face of the connecting bend (1). The machine (11) has an installation groove (12) on one side of the connecting bend (1). An installation strip (13) is snapped into the installation groove (12). A spray pipe (23) is fixedly inserted inside the installation strip (13). A connecting plate (20) is fixedly connected to the bottom of the outer side of the installation strip (13). A spray box (21) is fixedly connected to the outer side of the connecting plate (20). A suction pump (22) is installed on the top of the spray box (21). A drain port (24) is connected through the bottom of the bend of the connecting bend (1).

2. The industrial waste gas treatment and purification device according to claim 1, characterized in that, The cleaning frame (6) can be flexibly pulled in the connecting bend (1) along the direction of the cleaning groove (5). The end of the cleaning brush (7) contacts the filter screen (4) and can clean the filter screen (4) during the reciprocating pulling process. The top and bottom of the cleaning frame (6) are fixedly connected with a top cover plate (8) and a bottom cover plate (9) to ensure the sealing of the pipe wall of the connecting bend (1) when the cleaning frame (6) is placed in it and when it is completely pulled out.

3. The industrial waste gas treatment and purification device according to claim 1, characterized in that, The exhaust fan (11) draws air from the inside out, so that the exhaust gas passes through the filter screen (4), the spray pipe (23) and the moisture absorption plate (10) in sequence.

4. The industrial waste gas treatment and purification device according to claim 1, characterized in that, The mounting strip (13) has a through hole (14) that runs horizontally through it. Two sets of fixed rods (15) are symmetrically inserted inside the through hole (14). A tension spring (16) connects the two sets of fixed rods (15). Four sets of fixed slots (17) are symmetrically opened on both sides inside the mounting groove (12). The fixed rods (15) are always pressed against the inside of the fixed slots (17) under the action of the tension spring (16).

5. The industrial waste gas treatment and purification device according to claim 4, characterized in that, The number of through holes (14) is set in two sets, which are symmetrically opened at both ends of the mounting strip (13). Each set of through holes (14) is equipped with a tension spring (16) and two sets of fixing rods (15). The ends of the two sets of fixing rods (15) on the same side are fixed with the same set of retractable handles (18). A retractable groove (19) is opened through one side of each set of through holes (14).

6. The industrial waste gas treatment and purification device according to claim 1, characterized in that, The spray box (21), the suction pump (22) and the spray pipe (23) are interconnected, and the top and side of the spray box (21) are provided with water inlet and water outlet structures.

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