A waste gas treatment device for pipe processing

Abstract

The utility model relates to pipeline processing technical field, specifically disclose a pipeline processing is with waste gas treatment equipment, including positioning board and negative pressure dust collecting box, and the dust collecting cover body is equipped with on positioning board upper end, and the dust collecting cover body is through first air pipe and is communicated with negative pressure dust collecting box, and the exhaust hood body and the air inlet hood body are equipped with below positioning board, and the exhaust hood body and the air inlet hood body are respectively placed in the left and right sides of dust collecting mouth, and the exhaust fan is equipped in the exhaust hood body, and the air inlet hood body is communicated with negative pressure dust collecting box through second air pipe on the side away from the exhaust hood body. The pipeline that needs processing is placed below positioning board, between the exhaust hood body and the air inlet hood body, and the dust collecting cover body separates the waste gas produced during the pipeline processing from the top of the pipeline, and the exhaust hood body blows the pipeline from the side of the pipeline, and the air inlet hood body separates the waste gas blown to the air inlet hood body from the other side of the pipeline, and the exhaust hood body, the air inlet hood body and the dust collecting cover body are arranged at different directions of the pipeline, can avoid the waste gas from the periphery of the pipeline to escape, and the waste gas treatment effect is better.

Description

Technical Field

[0001] This utility model relates to the field of pipeline processing technology, and in particular to a waste gas treatment device for pipeline processing. Background Technology

[0002] The processing of plastic pipes generates some waste gas. If this waste gas is discharged directly, it will pollute the environment. Therefore, in order to meet environmental protection requirements, waste gas treatment equipment is installed in the exhaust area of ​​such equipment.

[0003] When exhaust gas is drawn into the purification equipment through the suction pipe, harmful substances in the gas are adsorbed by the activated carbon purification plate inside the equipment. In order for the purification equipment to effectively adsorb the exhaust gas generated during the processing of plastic pipes, the suction pipe connected to the purification equipment is usually suspended above the pipe processing table by a fixed structure. The exhaust gas generated during processing can be directly extracted through the pipe. However, because there is a certain distance between the suction pipe and the negative pressure fan inside the purification equipment, the airflow at the air inlet of the suction pipe will decrease. Some of the exhaust gas generated during processing will escape from below the suction pipe into the surrounding area, affecting the physical and mental health of the workers. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a waste gas treatment device for pipeline processing, which solves the shortcomings of existing waste gas treatment devices where the suction pipe is a certain distance from the negative pressure fan inside the purification equipment, resulting in a decrease in the airflow at the inlet of the suction pipe and some of the waste gas generated during processing escaping from below the suction pipe.

[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a waste gas treatment device for pipe processing, including a positioning plate and a negative pressure dust collection box, a dust collection hood is provided at the upper end of the positioning plate, the dust collection hood is connected to the dust collection port opened at the lower end of the positioning plate, and the dust collection hood is connected to the negative pressure dust collection box through a first air duct.

[0006] Below the positioning plate are an exhaust hood and an air inlet hood, which are respectively placed on the left and right sides of the dust collection port. The exhaust hood and the air inlet hood are slidably connected to the positioning plate. An exhaust fan is installed inside the exhaust hood. The side of the air inlet hood away from the exhaust hood is connected to the negative pressure dust collection box through a second air duct.

[0007] The upper end of the positioning plate is equipped with a spacing adjustment mechanism for adjusting the distance between the exhaust hood and the air inlet hood.

[0008] A further improvement is that the air inlet of the negative pressure dust collection box is connected to the first air duct and the second air duct, the air outlet of the negative pressure dust collection box is equipped with a negative pressure fan, the input end of the negative pressure fan is connected to the negative pressure dust collection box, and the negative pressure dust collection box is equipped with a filter layer for filtering dust in the airflow.

[0009] A further improvement is that: a first sliding groove is provided at the lower end of the positioning plate, the first sliding groove passes through the upper and lower parts of the positioning plate, and two mating blocks are provided in the first sliding groove. The mating blocks are slidably connected to the first sliding groove, and the two mating blocks are respectively fixedly connected to the upper ends of the exhaust hood and the air inlet hood.

[0010] A further improvement is that the spacing adjustment mechanism includes a double-ended screw located above the first slide groove. The two ends of the double-ended screw are rotatably connected to the upper end of the positioning plate. A motor is provided on the outside of the positioning plate. The output end of the motor is fixedly connected to the double-ended screw. The double-ended screw passes through two mating blocks and is threadedly connected to the two mating blocks.

[0011] A further improvement is made in that: a second sliding groove is provided at the lower end of the positioning plate, the second sliding groove passes through the upper and lower parts of the positioning plate, and two sliding sleeves are provided in the second sliding groove. The sliding sleeves are slidably connected to the second sliding groove, and the two sliding sleeves are respectively fixedly connected to the upper end of the exhaust hood and the air inlet hood. A limiting rod is provided above the second sliding groove, and the two ends of the limiting rod are fixedly connected to the upper end of the positioning plate. The limiting rod passes through the two sliding sleeves, and the sliding sleeves are slidably connected to the limiting rod.

[0012] A further improvement is that: the upper end of the positioning plate is provided with a fixing frame, the lower end of the fixing frame is fixedly connected to the positioning plate, and the upper end of the fixing frame is provided with several threaded rods, which are fixedly connected to the fixing frame.

[0013] A further improvement is that a filter screen is provided on the side of the exhaust hood facing the air inlet hood, and the filter screen is fixedly connected to the exhaust hood.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The pipe to be processed is placed below the positioning plate, between the exhaust hood and the inlet hood. The dust collection hood extracts the exhaust gas generated during pipe processing from the top of the pipe, while the exhaust hood blows the pipe from the side. The inlet hood extracts the exhaust gas blown towards it from the other side of the pipe. The exhaust hood, inlet hood, and dust collection hood are set in different positions on the pipe to prevent exhaust gas from escaping from the periphery of the pipe, resulting in better exhaust gas treatment.

[0016] The distance between the exhaust hood and the intake hood can be adjusted by the distance adjustment mechanism, which can effectively cope with the processing of pipes of different sizes and has better adaptability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the dust filter box in this utility model.

[0019] Figure 2 This is a structural diagram of the positioning plate in this utility model.

[0020] Figure 3 This is a structural diagram of the exhaust hood in this utility model.

[0021] Figure 4 This is a structural diagram of the air inlet cover in this utility model.

[0022] The components include: 1. Negative pressure dust collection box; 2. Negative pressure fan; 3. First air duct; 4. Second air duct; 5. Exhaust hood; 6. Inlet hood; 7. Exhaust fan; 8. Filter screen; 9. Positioning plate; 10. Fixing frame; 11. Dust collection hood; 12. Threaded hanger; 13. Dust collection port; 14. First slide groove; 15. Second slide groove; 16. Mating block; 17. Double-ended screw; 18. Motor; 19. Sliding sleeve; 20. Limiting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a waste gas treatment device for pipeline processing, including a positioning plate 9 and a negative pressure dust collection box 1. The upper end of the positioning plate 9 is provided with a dust collection hood 11, which is connected to a dust collection port 13 opened at the lower end of the positioning plate 9. The dust collection hood 11 is connected to the negative pressure dust collection box 1 through a first air duct 3.

[0025] Below the positioning plate 9 are an exhaust hood 5 and an air inlet hood 6. The exhaust hood 5 and the air inlet hood 6 are respectively placed on the left and right sides of the dust collection port 13. The exhaust hood 5 and the air inlet hood 6 are slidably connected to the positioning plate 9. An exhaust fan 7 is provided inside the exhaust hood 5. The side of the air inlet hood 6 away from the exhaust hood 5 is connected to the negative pressure dust collection box 1 through the second air duct 4.

[0026] The pipe to be processed is placed below the positioning plate 9, between the exhaust hood 5 and the inlet hood 6. The dust collection hood 11 extracts the exhaust gas generated during pipe processing from the top of the pipe, while the exhaust hood 5 blows the pipe from the side. The inlet hood 6 extracts the exhaust gas blown towards it from the other side of the pipe. The exhaust hood 5, the inlet hood 6, and the dust collection hood 11 are set in different positions on the pipe to prevent exhaust gas from escaping from the periphery of the pipe, resulting in better exhaust gas treatment.

[0027] The upper end of the positioning plate 9 is equipped with a spacing adjustment mechanism for adjusting the distance between the exhaust hood 5 and the air inlet hood 6. The spacing between the exhaust hood 5 and the air inlet hood 6 can be adjusted by the spacing adjustment mechanism, which can effectively cope with the processing of pipes of different sizes and has better adaptability.

[0028] Regarding negative pressure dust collection box 1:

[0029] The air inlet of the negative pressure dust collection box 1 is connected to the first air duct 3 and the second air duct 4. The exhaust port of the negative pressure dust collection box 1 is equipped with a negative pressure fan 2, and the input end of the negative pressure fan 2 is connected to the negative pressure dust collection box 1. The negative pressure dust collection box 1 is equipped with a filter layer for filtering dust in the airflow. When the negative pressure fan 2 is started, a negative pressure will be formed in the negative pressure dust collection box 1. The dust collection hood 11 is connected to the negative pressure dust collection box 1 through the first air duct 3, and the air inlet hood 6 is connected to the negative pressure dust collection box 1 through the second air duct 4. The fumes generated during pipe cutting or welding will enter the negative pressure dust collection box 1 through the air inlet hood 6 and the dust collection hood 11. When the airflow entering the negative pressure dust collection box 1 passes through the filter layer, the activated carbon and filter screen structure in the filter layer will adsorb the harmful particulate matter in the gas. The remaining gas will be discharged normally through the output end of the negative pressure fan 2.

[0030] The exhaust hood 5 and the air inlet hood 6 are slidably connected to the lower end of the positioning plate 9. Specifically, the lower end of the positioning plate 9 has a first sliding groove 14 that runs vertically through the positioning plate 9. Two mating blocks 16 are provided within the first sliding groove 14, and these mating blocks 16 are slidably connected to the first sliding groove 14. The two mating blocks 16 are respectively fixedly connected to the upper ends of the exhaust hood 5 and the air inlet hood 6. When the exhaust hood 5 and the air inlet hood 6 are moved at the lower end of the positioning plate 9 by the spacing adjustment mechanism, the mating blocks 16 fixed to the upper ends of the exhaust hood 5 and the air inlet hood 6 will slide along the first sliding groove 14. The first sliding groove 14 guides the exhaust hood 5 and the air inlet hood 6 by cooperating with the mating blocks 16.

[0031] For details on the structure of the spacing adjustment mechanism, please refer to the following description.

[0032] The spacing adjustment mechanism includes a double-headed screw 17 located above the first slide groove 14. The two ends of the double-headed screw 17 are rotatably connected to the upper end of the positioning plate 9. A motor 18 is provided on the outside of the positioning plate 9. The output end of the motor 18 is fixedly connected to the double-headed screw 17. The double-headed screw 17 passes through two mating blocks 16 and is threadedly connected to the two mating blocks 16.

[0033] The adjustment steps of the spacing adjustment mechanism are as follows: the motor 18 drives the double-ended screw 17 to rotate. During the rotation of the double-ended screw 17, it engages with two mating blocks 16, causing the mating blocks 16 to move along the body of the double-ended screw 17. Due to the different directions of the outer threads of the double-ended screw 17, the two mating blocks 16 fitted at both ends of the double-ended screw 17 will move in opposite directions along the body of the double-ended screw 17. Since the mating blocks 16 are fixed to the air inlet hood 6 and the air outlet hood 5, the air inlet hood 6 and the air outlet hood 5 will also move together.

[0034] To further improve the stability of the exhaust hood 5 and the air inlet hood 6 when moving below the positioning plate 9, in a preferred embodiment, the lower end of the positioning plate 9 is provided with a second sliding groove 15, which runs vertically through the positioning plate 9. Two sliding sleeves 19 are provided inside the second sliding groove 15 and are slidably connected to the second sliding groove 15. The two sliding sleeves 19 are respectively fixedly connected to the upper ends of the exhaust hood 5 and the air inlet hood 6. A limiting rod 20 is provided above the second sliding groove 15, and both ends of the limiting rod 20 are fixedly connected to the upper end of the positioning plate 9. The limiting rod 20 passes through the two sliding sleeves 19 and is slidably connected to the limiting rod 20.

[0035] When the exhaust hood 5 and the air inlet hood 6 move horizontally at the lower end of the positioning plate 9, the sliding sleeve 19 fixed at the upper end of the exhaust hood 5 and the air inlet hood 6 will slide along the second sliding groove 15 and the limiting rod 20. The second sliding groove 15 guides the sliding sleeve 19 by cooperating with it, so that the exhaust hood 5 and the air inlet hood 6 will not deviate left or right when moving horizontally. The limiting rod 20 limits the sliding sleeve 19 by cooperating with it, so as to prevent the exhaust hood 5 and the air inlet hood 6 from moving up and down.

[0036] In a preferred embodiment, the upper end of the positioning plate 9 is provided with a fixing frame 10, the lower end of the fixing frame 10 is fixedly connected to the positioning plate 9, and the upper end of the fixing frame 10 is provided with a plurality of threaded hangers 12, which are fixedly connected to the fixing frame 10. The positioning plate 9 can be suspended and fixed on the top of the workshop frame by the threaded hangers 12 at the top of the fixing frame 10. The method of fixing with multiple threaded hangers 12 ensures the structural stability of the positioning plate 9 and also facilitates the workers to remove the positioning plate 9 from the workshop frame for maintenance.

[0037] In another preferred embodiment, a filter screen 8 is provided on the side of the exhaust hood 5 facing the air inlet hood 6, and the filter screen 8 is fixedly connected to the exhaust hood 5. The filter screen 8 is located on the exhaust side of the exhaust hood 5 to protect the exhaust fan 7 inside the exhaust hood 5. When processing the pipe, the debris splashing on the pipe will not enter the exhaust hood 5 and affect the operation of the exhaust fan 7.

[0038] How this application works:

[0039] The pipe to be processed is placed below the positioning plate 9, between the exhaust hood 5 and the inlet hood 6. The distance between the exhaust hood 5 and the inlet hood 6 can be adjusted by the distance adjustment mechanism, which can effectively handle the processing of pipes of different sizes and has better adaptability. The dust collection hood 11 extracts the exhaust gas generated during pipe processing from the top of the pipe, while the exhaust hood 5 blows air from the side of the pipe, and the inlet hood 6 extracts the exhaust gas blown towards it from the other side of the pipe. The exhaust hood 5, the inlet hood 6, and the dust collection hood 11 are set in different positions on the pipe, which can prevent exhaust gas from escaping from the periphery of the pipe and improve the exhaust gas treatment effect.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A waste gas treatment device for pipe processing, comprising a positioning plate (9) and a negative pressure dust collection box (1), wherein a dust collection hood (11) is provided at the upper end of the positioning plate (9), characterized in that, The dust collection hood (11) is connected to the dust collection port (13) opened at the lower end of the positioning plate (9), and the dust collection hood (11) is connected to the negative pressure dust collection box (1) through the first air duct (3); Below the positioning plate (9) are an exhaust hood (5) and an air inlet hood (6). The exhaust hood (5) and the air inlet hood (6) are respectively placed on the left and right sides of the dust collection port (13). The exhaust hood (5) and the air inlet hood (6) are slidably connected to the positioning plate (9). An exhaust fan (7) is provided inside the exhaust hood (5). The side of the air inlet hood (6) away from the exhaust hood (5) is connected to the negative pressure dust collection box (1) through a second air duct (4). The upper end of the positioning plate (9) is provided with a spacing adjustment mechanism for adjusting the distance between the exhaust hood (5) and the air inlet hood (6).

2. The waste gas treatment equipment for pipeline processing according to claim 1, characterized in that, The air inlet of the negative pressure dust collection box (1) is connected to the first air duct (3) and the second air duct (4). The air outlet of the negative pressure dust collection box (1) is equipped with a negative pressure fan (2). The input end of the negative pressure fan (2) is connected to the negative pressure dust collection box (1). The negative pressure dust collection box (1) is equipped with a filter layer for filtering dust in the airflow.

3. The waste gas treatment equipment for pipeline processing according to claim 1, characterized in that: The lower end of the positioning plate (9) is provided with a first sliding groove (14), which passes through the positioning plate (9) vertically. The first sliding groove (14) is provided with two mating blocks (16), which are slidably connected to the first sliding groove (14). The two mating blocks (16) are respectively fixedly connected to the upper ends of the exhaust hood (5) and the air inlet hood (6).

4. The waste gas treatment equipment for pipeline processing according to claim 3, characterized in that: The spacing adjustment mechanism includes a double-headed screw (17) located above the first slide groove (14). The two ends of the double-headed screw (17) are rotatably connected to the upper end of the positioning plate (9). A motor (18) is provided on the outside of the positioning plate (9). The output end of the motor (18) is fixedly connected to the double-headed screw (17). The double-headed screw (17) passes through two mating blocks (16) and is threadedly connected to the two mating blocks (16).

5. The waste gas treatment equipment for pipeline processing according to claim 1, characterized in that: The lower end of the positioning plate (9) is provided with a second sliding groove (15), which passes through the positioning plate (9) vertically. The second sliding groove (15) is provided with two sliding sleeves (19), which are slidably connected to the second sliding groove (15). The two sliding sleeves (19) are respectively fixedly connected to the upper ends of the exhaust hood (5) and the air inlet hood (6). A limiting rod (20) is provided above the second sliding groove (15), and the two ends of the limiting rod (20) are fixedly connected to the upper end of the positioning plate (9). The limiting rod (20) passes through the two sliding sleeves (19), and the sliding sleeves (19) are slidably connected to the limiting rod (20).

6. The waste gas treatment equipment for pipeline processing according to claim 1, characterized in that: The positioning plate (9) is provided with a fixing frame (10) at its upper end. The lower end of the fixing frame (10) is fixedly connected to the positioning plate (9). The upper end of the fixing frame (10) is provided with a plurality of threaded rods (12). The threaded rods (12) are fixedly connected to the fixing frame (10).

7. The waste gas treatment equipment for pipeline processing according to claim 1, characterized in that: The exhaust hood (5) has a filter screen (8) on the side facing the air inlet hood (6), and the filter screen (8) is fixedly connected to the exhaust hood (5).

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