Multi-stage waste gas filtering device

Abstract

The utility model discloses a multi-stage waste gas filtering device which comprises a waste gas treatment equipment shell, a gas outlet formed in one end of the waste gas treatment equipment shell and a gas inlet formed in the other end of the waste gas treatment equipment shell, and a filter screen layer is arranged at the end, close to the gas inlet, of the inner side of the waste gas treatment equipment shell. An adsorption cotton layer and an activated carbon layer are sequentially arranged on the side, away from the air inlet, of the filter screen layer, a motor is arranged on the inner side of the air outlet, a first rotating shaft is arranged at the output end of the motor, and fan blades are arranged on the first rotating shaft. A cleaning mechanism is arranged on the side, close to the air inlet, of the filter screen layer and comprises a third rotating shaft rotationally connected between the filter screen layer and the air inlet. According to the multi-stage waste gas filtering device, cleaning of one side of the filtering net layer can be achieved by arranging the third rotating shaft and the brush plate in cooperation with the transmission mechanism, the transmission mechanism is driven by an existing first rotating shaft, continuous cleaning can be achieved in the using process, and the situation that using is affected by blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a multi-stage waste gas filtering device. Background Art

[0002] In some factories, a large amount of waste gas is discharged every day. In order to prevent the discharged waste gas from harming the environment, waste gas treatment equipment is needed to treat the waste gas before it is discharged into the air. At present, the existing waste gas treatment equipment requires multiple filtering mechanisms to perform multi-stage filtering when treating waste gas. The filtering device generally includes an air inlet, an exhaust port, and a filter layer, an activated carbon layer and other structures arranged inside the device. The filter layer is generally arranged at one end of the device close to the air inlet, mainly to preliminarily filter large particles of impurities and dust in the waste gas, and then further purify it.

[0003] In the related art, a multi-stage exhaust gas filtration device will be equipped with a fan at the exhaust port for the rapid passage and discharge of gas. However, the increase in wind speed will cause the filter mesh layer and other filtering structures to reach saturation prematurely, especially the filter mesh layer. Since the filter mesh layer is located at one end close to the air inlet, the blockage of the filter mesh layer directly affects the circulation of the exhaust gas, and thus affects the subsequent filtration treatment. At present, the filter mesh layer is generally cleaned and replaced by manual disassembly, which is time-consuming and labor-intensive, and is carried out in a stopped state, affecting efficiency.

[0004] Therefore, it is necessary to propose a multi-stage exhaust gas filtering device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a multi-stage exhaust gas filtering device, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A multi-stage exhaust gas filtering device comprises an exhaust gas treatment device housing, an air outlet arranged at one end of the exhaust gas treatment device housing, and an air inlet arranged at the other end of the exhaust gas treatment device housing, a filter mesh layer is arranged at one end of the exhaust gas treatment device housing near the air inlet, an adsorption cotton layer and an activated carbon layer are arranged in sequence on the side of the filter mesh layer away from the air inlet, a motor is arranged on the inner side of the air outlet, a first rotating shaft is arranged at the output end of the motor, and a fan blade is arranged on the first rotating shaft;

[0008] A cleaning mechanism is provided on one side of the filter layer close to the air inlet, and the cleaning mechanism includes a third rotating shaft rotatably connected between the filter layer and the air inlet, and a brush plate in contact with the filter layer is provided on one end side wall of the third rotating shaft close to the filter layer, and a transmission mechanism is provided between the third rotating shaft and the first rotating shaft, and the first rotating shaft drives the third rotating shaft to rotate through the transmission mechanism.

[0009] Preferably, one end of the first rotating shaft away from the motor extends to the inner side of the housing of the exhaust gas treatment device;

[0010] The transmission mechanism includes a first synchronous wheel arranged at an end of the first rotating shaft away from the motor, a second rotating shaft is rotatably connected to the inner upper end of the exhaust gas treatment equipment shell, a second synchronous wheel is arranged at the end of the second rotating shaft close to the air outlet, and a third synchronous wheel is arranged at the end close to the air inlet, the first synchronous wheel corresponds to the second synchronous wheel and a first synchronous belt is arranged on the outside thereof, a fourth synchronous wheel corresponding to the third synchronous wheel is arranged at one end of the third rotating shaft, and a second synchronous belt is arranged on the outside thereof together with the fourth synchronous wheel and the third synchronous wheel.

[0011] Preferably, a placement rack is provided at one end of the bottom of the exhaust gas treatment equipment shell near the air inlet, and a collecting box is movably connected to the inner side of the placement rack. An ash trough is provided at the bottom of the exhaust gas treatment equipment shell corresponding to the collecting box, and the ash trough corresponds to the side of the filter layer near the air inlet.

[0012] Preferably, an ash separation mechanism is provided above the collecting box, and the ash separation mechanism includes a fourth rotating shaft rotatably connected to the inner side of the ash dropping trough, a sixth synchronous wheel is provided at one end of the fourth rotating shaft, a fifth synchronous wheel corresponding to the sixth synchronous wheel is provided at one end of the third rotating shaft, a third synchronous belt is provided together at the outer sides of the sixth synchronous wheel and the fifth synchronous wheel, toggle rods are provided on both sides of the sixth synchronous wheel, and an ash separation plate is rotatably connected to the lower inner side of the ash dropping trough.

[0013] Preferably, the two toggle rods are diagonally arranged, and one end of the toggle rod away from the sixth synchronous wheel corresponds to the edge of the ash separating plate, so that the sixth synchronous wheel can drive the toggle rod to toggle the ash separating plate, so that the ash separating plate flips and tilts.

[0014] Preferably, limiting rods corresponding to the ash separation plates are symmetrically arranged on both sides of the upper end of the inner cavity of the placement rack, so that when the ash separation plates are flipped to the maximum angle, the bottoms thereof can contact the limiting rods.

[0015] Preferably, brackets are symmetrically arranged on the outer sides of both ends of the exhaust gas treatment equipment housing, a through groove is arranged on the upper end of the bracket, the two ends of the exhaust gas treatment equipment housing are located on the inner sides of the two through grooves, damping rods are symmetrically arranged on the upper and lower ends of the inner sides of the through grooves, the other end of the damping rod is fixedly connected to the outer side of the exhaust gas treatment equipment housing, and a spring is arranged on the outer side of the damping rod.

[0016] Preferably, an annular telescopic cover is provided between the two side edges of the through groove and the outer wall of the shell of the exhaust gas treatment equipment.

[0017] Beneficial Effects

[0018] Compared with the prior art, the utility model provides a multi-stage exhaust gas filtering device having the following

[0019] Beneficial effects:

[0020] 1. The multi-stage exhaust gas filtering device can clean one side of the filter layer by setting the third rotating shaft, the brush plate and the transmission mechanism. The transmission mechanism is driven by the existing first rotating shaft and can be continuously cleaned during use, thus avoiding blockage and affecting use and increasing convenience.

[0021] 2. The multi-stage exhaust gas filtering device facilitates the collection of dust and impurities to be cleaned by means of the placement rack, collection box and ash drop trough. The cooperation of the fifth synchronous wheel, the third synchronous belt, the fourth rotating shaft, the sixth synchronous wheel, the toggle rod and the ash separating plate can separate the falling dust and impurities while cleaning, thereby avoiding the accumulation of dust and impurities in one place in the collection box and improving the space utilization of the collection box. The setting of the limit rod facilitates the limiting of the ash separating plate and avoids the rotation of the ash separating plate and contact with other objects.

[0022] 3. The multi-stage exhaust gas filtering device facilitates the support of the exhaust gas treatment equipment housing through the provided bracket, through groove, damping rod and spring, and can reduce the vibration generated during use, increase stability, and reduce the noise generated by vibration. The provided annular telescopic cover facilitates covering the through groove, avoiding contamination of the damping rod and spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0027] In the figure: 1. Shell of exhaust gas treatment equipment; 2. Air outlet; 3. Air inlet; 4. Activated carbon layer; 5. Filter mesh layer; 6. Adsorption cotton layer; 7. Motor; 8. First rotating shaft; 9. Fan blades; 10. First synchronous wheel; 11. First synchronous belt; 12. Second synchronous wheel; 13. Second rotating shaft; 14. Third synchronous wheel; 15. Second synchronous belt; 16. Third rotating shaft; 17. Fourth synchronous wheel; 18. Fifth synchronous wheel; 19. Third synchronous belt; 20. Bracket; 21. Placement rack; 22. Collection box; 23. Through groove; 24. Damping rod; 25. Spring; 26. Annular telescopic cover; 27. Ash falling groove; 28. Fourth rotating shaft; 29. ​​Sixth synchronous wheel; 30. Toggle rod; 31. Ash separation plate; 32. Limit rod; 33. Brush plate. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1-4 As shown, a multi-stage exhaust gas filtering device comprises an exhaust gas treatment device housing 1, an air outlet 2 arranged at one end of the exhaust gas treatment device housing 1, and an air inlet 3 arranged at the other end of the exhaust gas treatment device housing 1, a filter mesh layer 5 is arranged at one end of the exhaust gas treatment device housing 1 close to the air inlet 3, an adsorption cotton layer 6 and an activated carbon layer 4 are arranged in sequence on the side of the filter mesh layer 5 away from the air inlet 3, a motor 7 is arranged on the inner side of the air outlet 2, a first rotating shaft 8 is arranged at the output end of the motor 7, and a fan blade 9 is arranged on the first rotating shaft 8;

[0030] Furthermore, a cleaning mechanism is provided on one side of the filter mesh layer 5 close to the air inlet 3, and the cleaning mechanism includes a third rotating shaft 16 rotatably connected between the filter mesh layer 5 and the air inlet 3, and a brush plate 33 in contact with the filter mesh layer 5 is provided on a side wall of one end of the third rotating shaft 16 close to the filter mesh layer 5, and an end of the first rotating shaft 8 away from the motor 7 extends to the inner side of the exhaust gas treatment device housing 1, and a transmission mechanism is provided between the third rotating shaft 16 and the first rotating shaft 8, and the first rotating shaft 8 drives the third rotating shaft 16 to rotate through the transmission mechanism;

[0031] As an embodiment, the transmission mechanism includes a first synchronous wheel 10 arranged at the end of the first rotating shaft 8 away from the motor 7, the inner upper end of the exhaust gas treatment equipment housing 1 is rotatably connected to the second rotating shaft 13, the second rotating shaft 13 is provided with a second synchronous wheel 12 at the end close to the air outlet 2, and a third synchronous wheel 14 is provided at the end close to the air inlet 3. The first synchronous wheel 10 corresponds to the second synchronous wheel 12 and a first synchronous belt 11 is provided on the outside thereof, a fourth synchronous wheel 17 corresponding to the third synchronous wheel 14 is provided on one end of the third rotating shaft 16, and a second synchronous belt 15 is provided on the outside of the fourth synchronous wheel 17 and the third synchronous wheel 14.

[0032] Furthermore, a placement rack 21 is provided at one end of the bottom of the exhaust gas treatment equipment shell 1 close to the air inlet 3, and a collecting box 22 is movably connected to the inner side of the placement rack 21. An ash trough 27 is provided at the bottom of the exhaust gas treatment equipment shell 1 corresponding to the collecting box 22, and the ash trough 27 corresponds to the side of the filter mesh layer 5 close to the air inlet 3.

[0033] Furthermore, an ash separation mechanism is provided above the collecting box 22, and the ash separation mechanism includes a fourth rotating shaft 28 rotatably connected to the inner side of the ash falling groove 27, a sixth synchronous wheel 29 is provided at one end of the fourth rotating shaft 28, a fifth synchronous wheel 18 corresponding to the sixth synchronous wheel 29 is provided at one end of the third rotating shaft 16, and a third synchronous belt 19 is provided on the outer sides of the sixth synchronous wheel 29 and the fifth synchronous wheel 18. A toggle rod 30 is provided on both sides of the sixth synchronous wheel 29, and an ash separation plate 31 is rotatably connected to the lower inner side of the ash falling groove 27. The two toggle rods 30 are diagonally arranged, and the end of the toggle rod 30 away from the sixth synchronous wheel 29 corresponds to the edge of the ash separation plate 31, and then the sixth synchronous wheel 29 can drive the toggle rod 30 to toggle the ash separation plate 31, so that the ash separation plate 31 flips and tilts; limit rods 32 corresponding to the ash separation plate 31 are symmetrically provided on both sides of the upper end of the inner cavity of the placement rack 21, and then when the ash separation plate 31 flips to the maximum angle, its bottom can contact the limit rod 32.

[0034] As an embodiment, brackets 20 are symmetrically arranged on the outer sides of both ends of the exhaust gas treatment device housing 1, and a through groove 23 is arranged on the upper end of the bracket 20. The two ends of the exhaust gas treatment device housing 1 are located on the inner sides of the two through grooves 23, and damping rods 24 are symmetrically arranged on the upper and lower ends of the inner sides of the through grooves 23. The other end of the damping rod 24 is fixedly connected to the outer side of the exhaust gas treatment device housing 1, and a spring 25 is sleeved on the outer side of the damping rod 24; further, an annular telescopic cover 26 is arranged between the two side edges of the through groove 23 and the outer wall of the exhaust gas treatment device housing 1.

[0035] It should be noted that the utility model is a multi-stage exhaust gas filtering device. When in use, the motor 7 drives the fan blades 9 to rotate through the first rotating shaft 8, thereby forming a negative pressure inside the exhaust gas treatment equipment housing 1, and the exhaust gas enters through the air inlet 3, and is filtered through the filter mesh layer 5, the adsorption cotton layer 6, and the activated carbon layer 4 in turn before being discharged. During this period, the first rotating shaft 8 drives the second rotating shaft 13 to rotate through the first synchronous wheel 10, the first synchronous belt 11, and the second synchronous wheel 12, and the second rotating shaft 13 drives the third rotating shaft 16 to rotate through the third synchronous wheel 14, the second synchronous belt 15, and the fourth synchronous wheel 17, and then the third rotating shaft 16 drives the brush plate 33 to continuously clean one side of the filter mesh layer 5, and during this period, the fifth synchronous wheel 18 drives the sixth synchronous wheel 29 to rotate through the third synchronous belt 19, and the sixth synchronous wheel 29 drives two toggle rods 30 to alternately contact with the ash separating plate 31. When one of the toggle rods 30 contacts with one side of the ash separating plate 31, it will drive the ash separating plate 31 to flip to that side, and then the dust and impurities slide down from that side to the collection box 22 for collection. When the other toggle rod 30 contacts with the other side of the ash separating plate 31, the dust slides down from the other side in the same way, so that the dust can fall to both ends of the collection box 22 to avoid accumulation in one place. In addition, when the device is in use, the continuous flow of airflow and the impact of the internal filtering structure will generate vibration. At this time, the damping rod 24 and the spring 25 will expand and contract, thereby absorbing kinetic energy and reducing vibration and noise.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-stage exhaust gas filtering device, comprising an exhaust gas treatment device housing (1), an air outlet (2) arranged at one end of the exhaust gas treatment device housing (1), and an air inlet (3) arranged at the other end of the exhaust gas treatment device housing (1), a filter mesh layer (5) is arranged at one end of the exhaust gas treatment device housing (1) near the air inlet (3), an adsorption cotton layer (6) and an activated carbon layer (4) are arranged in sequence on the side of the filter mesh layer (5) away from the air inlet (3), a motor (7) is arranged on the inner side of the air outlet (2), a first rotating shaft (8) is arranged at the output end of the motor (7), and a fan blade (9) is arranged on the first rotating shaft (8); Features: A cleaning mechanism is provided on one side of the filter mesh layer (5) close to the air inlet (3), the cleaning mechanism comprising a third rotating shaft (16) rotatably connected between the filter mesh layer (5) and the air inlet (3), a brush plate (33) in contact with the filter mesh layer (5) is provided on a side wall of one end of the third rotating shaft (16) close to the filter mesh layer (5), a transmission mechanism is provided between the third rotating shaft (16) and the first rotating shaft (8), and the first rotating shaft (8) drives the third rotating shaft (16) to rotate via the transmission mechanism.

2. A multi-stage exhaust gas filtering device according to claim 1, characterized in that: One end of the first rotating shaft (8) away from the motor (7) extends to the inner side of the housing (1) of the exhaust gas treatment device; The transmission mechanism comprises a first synchronous wheel (10) arranged at an end of the first rotating shaft (8) away from the motor (7); the inner upper end of the exhaust gas treatment device housing (1) is rotatably connected to a second rotating shaft (13); the end of the second rotating shaft (13) close to the air outlet (2) is provided with a second synchronous wheel (12); the end close to the air inlet (3) is provided with a third synchronous wheel (14); the first synchronous wheel (10) corresponds to the second synchronous wheel (12) and a first synchronous belt (11) is provided on the outer side thereof; a fourth synchronous wheel (17) corresponding to the third synchronous wheel (14) is provided at one end of the third rotating shaft (16); and the outer sides of the fourth synchronous wheel (17) and the third synchronous wheel (14) are provided with a second synchronous belt (15).

3. A multi-stage exhaust gas filtering device according to claim 2, characterized in that: A placement rack (21) is provided at one end of the bottom of the exhaust gas treatment device housing (1) close to the air inlet (3), and a collection box (22) is movably connected to the inner side of the placement rack (21). An ash dropping groove (27) is provided at a position corresponding to the collection box (22) at the bottom of the exhaust gas treatment device housing (1), and the ash dropping groove (27) corresponds to a side of the filter mesh layer (5) close to the air inlet (3).

4. A multi-stage exhaust gas filtering device according to claim 3, characterized in that: An ash separation mechanism is arranged above the collecting box (22), and the ash separation mechanism comprises a fourth rotating shaft (28) rotatably connected to the inner side of the ash falling groove (27), a sixth synchronous wheel (29) is arranged at one end of the fourth rotating shaft (28), a fifth synchronous wheel (18) corresponding to the sixth synchronous wheel (29) is arranged at one end of the third rotating shaft (16), a third synchronous belt (19) is arranged on the outer sides of the sixth synchronous wheel (29) and the fifth synchronous wheel (18), a toggle rod (30) is arranged on both sides of the sixth synchronous wheel (29), and an ash separation plate (31) is rotatably connected to the lower inner side of the ash falling groove (27).

5. A multi-stage exhaust gas filtering device according to claim 4, characterized in that: The two toggle rods (30) are arranged diagonally, and one end of the toggle rod (30) away from the sixth synchronous wheel (29) corresponds to the edge of the ash separation plate (31), so that the sixth synchronous wheel (29) can drive the toggle rod (30) to toggle the ash separation plate (31), so that the ash separation plate (31) flips and tilts.

6. A multi-stage exhaust gas filtering device according to claim 5, characterized in that: Limiting rods (32) corresponding to the ash separation plate (31) are symmetrically arranged on both sides of the upper end of the inner cavity of the placement rack (21), so that when the ash separation plate (31) is turned to the maximum angle, its bottom can contact the limiting rods (32).

7. The multi-stage exhaust gas filtering device according to claim 1, characterized in that: Brackets (20) are symmetrically arranged on the outer sides of the two ends of the exhaust gas treatment device housing (1), and a through groove (23) is arranged on the upper end of the bracket (20). The two ends of the exhaust gas treatment device housing (1) are located on the inner sides of the two through grooves (23), and damping rods (24) are symmetrically arranged on the upper and lower ends of the inner sides of the through grooves (23). The other end of the damping rod (24) is fixedly connected to the outer side of the exhaust gas treatment device housing (1), and a spring (25) is sleeved on the outer side of the damping rod (24).

8. A multi-stage exhaust gas filtering device according to claim 7, characterized in that: An annular telescopic cover (26) is provided between the two side edges of the through groove (23) and the outer wall of the exhaust gas treatment equipment housing (1).

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