Environment-friendly tail gas dedusting and sieving device
By designing an eccentric wheel-driven transmission shaft to vibrate the filter frame, the problem of unsatisfactory exhaust gas filtration in molding compound production was solved, achieving efficient dust filtration and smooth airflow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, the exhaust gas filtration effect during the molding compound production process is not ideal, resulting in a reduction in exhaust velocity.
A tail gas environmental protection dust removal and screening device is designed. It adopts an eccentric wheel to drive the transmission shaft to drive the filter screen frame to vibrate. The small-amplitude vibration of the mounting frame is limited by the slide rail. Combined with the design of flexible parts and shell, it ensures that dust does not overflow and achieves effective filtration.
It improves exhaust gas filtration efficiency, avoids particulate matter clogging the filter screen, ensures smooth airflow, and reduces the risk of dust spillage.
Smart Images
Figure CN224071508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molding compound production equipment, specifically to an exhaust gas environmental protection dust removal and screening device. Background Technology
[0002] During the production of molding compounds, the exhaust gas contains particulate matter, so it must be filtered. Currently, the main filtration method is simple filtration using cloth bag filters, but this method is not ideal, for example, it can reduce the exhaust air velocity. Summary of the Invention
[0003] This utility model aims to provide an environmentally friendly dust removal and screening device for exhaust gas, the specific solution of which is as follows:
[0004] A tail gas environmental protection dust removal and screening device includes a frame, a screening chamber on the frame, a plurality of screen units inside the screening chamber, a screen unit including a drive shaft, a synchronous pulley at one end of the drive shaft, a synchronous belt between two adjacent synchronous pulleys, a motor on the screening chamber, a rotating wheel at one end of the motor, a synchronous belt between at least one synchronous pulley and the rotating wheel, a plurality of tripods on the drive shaft, filter frames mounted on the tripods, and filter frames with filter screens; a screening unit frame on the screening chamber, the screening unit frame including a slide rail, a mounting frame on the slide rail, a drive shaft rotatably connected to the mounting frame, and an eccentric wheel at one end of the drive shaft.
[0005] The mounting bracket has protrusions at both ends. Since the mounting bracket slides on the slide rail, this design is to ensure that there are no gaps between the mounting bracket and the two ends of the slide rail (otherwise dust would overflow).
[0006] The two adjacent eccentric wheels face opposite directions. This design is for better vibration control.
[0007] A flexible element is provided between the mounting bracket and the drive shaft. This design allows the mounting bracket a certain degree of freedom to move while preventing powder from spilling out.
[0008] The slide rail is provided with an outer casing. The casing is provided for safety reasons.
[0009] The sieving chamber has a feed inlet at the top and an air outlet at the bottom.
[0010] This utility model relates to an exhaust gas environmental protection dust removal and screening device. Due to the setting of the eccentric wheel, when the transmission shaft rotates (driven by a motor and driven by a synchronous belt), there will be a small displacement, thus realizing the vibration function. Furthermore, due to the limitation of the slide rail, the mounting frame will only vibrate slightly in the left and right dimensions. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a tail gas environmental protection dust removal and screening device according to the present invention;
[0012] Figure 2 This is a partial structural diagram of a tail gas environmental protection dust removal and screening device according to the present invention. Figure 1 ;
[0013] Figure 3 This is a partial structural diagram of a tail gas environmental protection dust removal and screening device according to the present invention. Figure 2 ;
[0014] Figure 4 This is a partial structural diagram of a tail gas environmental protection dust removal and screening device according to the present invention. Figure 3 ;
[0015] The components are labeled as follows: 1. Frame; 2. Screening chamber; 3. Screen unit; 4. Drive shaft; 5. Synchronous pulley; 6. Synchronous belt; 7. Motor; 8. Rotary wheel; 9. Air outlet; 10. Tripod; 11. Filter screen frame; 12. Filter screen; 13. Screening unit frame; 14. Slide rail; 15. Mounting bracket; 16. Eccentric wheel; 17. Protrusion; 18. Flexible component; 19. Outer shell; 20. Feed inlet. Detailed Implementation
[0016] The following is combined with Figure 1-4 Further explanation:
[0017] A tail gas environmental protection dust removal and screening device includes a frame 1, a screening chamber 2 on the frame 1, and several screen units 3 inside the screening chamber 2. Each screen unit 3 includes a drive shaft 4, with a synchronous pulley 5 at one end of the drive shaft 4. A synchronous belt 6 is provided between two adjacent synchronous pulleys 5. A motor 7 is mounted on the screening chamber 2, with a rotating wheel 8 at one end of the motor 7. A synchronous belt 6 is provided between at least one synchronous pulley 5 and the rotating wheel 8. Several tripods 10 are mounted on the drive shaft 4, and filter screen frames 11 are mounted on the tripods 10. Filter screens 12 are mounted on the filter screen frames 11. Screen unit frames 13 are mounted on the screening chamber 2. Each screen unit frame 13 includes a slide rail 14, with a mounting frame 15 on the slide rail 14. The drive shaft 4 is rotatably connected to the mounting frame 15, and an eccentric wheel 16 is provided at one end of the drive shaft 4. Protrusions 17 are provided at both ends of the mounting frame 15. Since the mounting bracket 15 slides on the slide rail 14, this design is to ensure that there is no gap between the two ends of the mounting bracket 15 and the slide rail 14 (otherwise dust will overflow).
[0018] The two adjacent eccentric wheels 16 are oriented in opposite directions. This design is for better vibration control (i.e., the two rotating wheels 8 are also oriented in opposite directions, thus avoiding collisions, etc.). A flexible component 18 (e.g., a rubber ring) is provided between the mounting bracket 15 and the drive shaft 4. This design allows the mounting bracket a certain degree of freedom to sway while ensuring that the powder does not spill out. A housing 19 is provided on the outside of the slide rail 14. The housing 19 is provided for safety considerations. The top of the screening chamber 2 is provided with a feed inlet 20, and the bottom of the screening chamber 2 is provided with an air outlet 9.
[0019] This utility model discloses an environmentally friendly dust removal and screening device for exhaust gas. The specific working steps are as follows: Exhaust gas mixed with dust enters through the feed inlet 20. At this time, the drive shaft 4 rotates (driven by the motor 7 and driven by the synchronous belt 6). Due to the eccentric wheel 16, there will be a slight displacement, so the tripod 10 will also have a slight displacement. The vibration generated by this displacement can be transmitted to the filter screen frame 11, and then to the filter screen 12. This can prevent particulate matter from clogging the filter screen 12 and affecting the filtration efficiency. The exhaust gas passing through the filter screen will then be discharged from the outlet 9. Furthermore, due to the limitation of the slide rail 14, the mounting frame 15 will only vibrate slightly in the left and right dimensions. In practice, the top cover of the frame 1 can be opened to empty the dust from the filter screen.
[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tail gas environmental protection dust removal and screening device, characterized in that: The application relates to a screening device, which comprises a frame body, a screening bin arranged on the frame body, a plurality of screen units arranged in the screening bin, a transmission shaft, a synchronous pulley arranged at one end of the transmission shaft, a synchronous belt arranged between two adjacent synchronous pulleys, a motor arranged on the screening bin, a rotating wheel arranged at one end of the motor, a synchronous belt arranged between at least one synchronous pulley and the rotating wheel, a plurality of tripods rotatably arranged on the transmission shaft, a filter screen frame arranged on the tripods, and a filter screen arranged on the filter screen frame; a screen unit frame is arranged on the screening bin, the screen unit frame comprises a sliding rail, a mounting frame is arranged on the sliding rail, a transmission shaft is rotatably connected to the mounting frame, and an eccentric wheel is arranged at one end of the transmission shaft.
2. The tail gas environmental protection dedusting and screening device according to claim 1, characterized in that: The mounting frame is provided with protrusions at both ends.
3. The tail gas environmental protection dedusting and screening device according to claim 1, characterized in that: The directions of the two adjacent eccentric wheels are opposite.
4. The tail gas environmental protection dedusting and screening device according to claim 1, characterized in that: A flexible piece is arranged between the mounting frame and the transmission shaft.
5. The tail gas environmental protection dedusting and screening device according to claim 1, characterized in that: An outer shell is arranged outside the sliding rail.
6. The tail gas environmental protection dedusting and screening device according to claim 1, characterized in that: An inlet is arranged at the top of the screening bin, and an air outlet is arranged at the bottom of the screening bin.