Pollution gas treatment device in titanium dioxide production process

Abstract

The utility model discloses a pollution gas treatment device in a titanium dioxide production process, which comprises a treatment tank, a dust vibration mechanism is arranged at the top of the treatment tank, the surface of the dust vibration mechanism is respectively in transmission connection with a vibration frame and a dust guide shaft, the inner wall of the vibration frame is rotationally connected with an outer rotating cylinder, and the inner wall of the outer rotating cylinder is rotationally connected with an inner vibration shaft; the inner vibrating shaft and the outer rotating cylinder are both driven by a dust guide shaft, a dirt inlet assembly matched with the dust guide shaft is installed at the axis position of the inner vibrating shaft, and a filter element is fixedly installed on the circumferential side face of the inner vibrating shaft through a three-jaw connecting frame. When the device is used, the adhesion rate of dust on the dust filtering mechanism can be effectively reduced through self-vibration and self-rotation of the dust filtering mechanism, and self-dust-shaking and self-dust-removing of the dust filtering mechanism are achieved through self-vibration and self-rotation of the dust filtering mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to a polluted gas processing device in the process of titanium dioxide production. Background Art

[0002] The main component of titanium dioxide is TiO2, which has the durability of zinc white and the hiding power of lead white. It is a high-grade white pigment. Its biggest advantage is that it is non-toxic. As a whitening agent in high-end cosmetics, it has strong covering ability and high refractive index. During the production of titanium dioxide, a large amount of harmful dust will fall into the air. In order to prevent dust explosions and optimize the working environment, a dust collector is particularly important.

[0003] In the prior art, a patent document with announcement number CN217340558U discloses a titanium dioxide dust removal device. When in use, on the one hand, it is not possible to effectively reduce the adhesion rate of dust on the dust filtering mechanism through the self-vibration and self-spin of the dust filtering mechanism. On the other hand, it is not convenient to realize online self-cleaning of the dust filtering mechanism during the dust filtering process, and then maintain the high dust filtering performance of the dust filtering mechanism. Based on this, the utility model provides a polluted gas treatment device in the titanium dioxide production process. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a polluted gas treatment device for the titanium dioxide production process, which solves the problem that the prior art device proposed in the above background technology, on the one hand, cannot effectively reduce the adhesion rate of dust on the dust filtering mechanism through the self-vibration and self-spin of the dust filtering mechanism when in use, and on the other hand, it is not convenient to realize the online self-cleaning of the dust filtering mechanism during the dust filtering process, thereby maintaining the high dust filtering performance of the dust filtering mechanism.

[0005] The utility model adopts the technical scheme to solve its technical problems: a polluted gas treatment device in the titanium dioxide production process comprises a treatment tank, the top of the treatment tank is equipped with a dust vibration mechanism, the surface of the dust vibration mechanism is respectively connected with a vibration frame and a dust guide shaft in a transmission manner, the inner wall of the vibration frame is rotatably connected with an outer rotating cylinder, the inner wall of the outer rotating cylinder is rotatably connected with an inner vibration shaft, the inner vibration shaft and the outer rotating cylinder are both driven by the dust guide shaft, the axial position of the inner vibration shaft is equipped with a pollution inlet component that cooperates with the dust guide shaft, the peripheral side surface of the inner vibration shaft is fixedly equipped with a filter element through a three-claw connecting frame, the peripheral side surface of the inner vibration shaft is also equipped with a group of positive pressure wind plates, the side surface of the treatment tank is fixedly connected with a clean air exhaust pipe, the interior of the treatment tank is fixedly equipped with an anti-cleaning component that cooperates with the filter element and supplies air through the clean air exhaust pipe, the inner wall of the treatment tank is equipped with a cleaning brush driven by the outer rotating cylinder, the bottom end of the treatment tank is fixedly equipped with an ash collecting hopper, and the lower part of the treatment tank is equipped with an ash unloading pipe that is connected with the ash collecting hopper.

[0006] Preferably, the dust shaking mechanism includes a motor fixed to the surface of the processing tank, the output shaft end of the motor is fixedly mounted with a driving bevel gear, the circumferential side surface of the dust guide shaft is rotatably connected to the processing tank, the circumferential side surface of the dust guide shaft is respectively fixedly mounted with a first bevel gear ring and a second bevel gear ring, the circumferential side surface of the first bevel gear ring is transmission connected to the driving bevel gear, the inner wall of the processing tank is rotatably connected with a gear shaft, the circumferential side surface of the gear shaft is respectively fixedly mounted with a missing gear and a passive bevel gear, the circumferential side surface of the second bevel gear ring is transmission connected to the passive bevel gear, the top surface of the vibration frame is fixedly mounted with a driven gear plate, the circumferential side surface of the missing gear is transmission connected to the driven gear plate, and a spring is installed between the vibration frame and the relative surface of the processing tank.

[0007] Preferably, the inner wall of the vibration frame is rotatably connected with a transverse axis, the interior of the inner vibration shaft is fixedly provided with an axis groove with a top opening and slidingly connected to the dust guide shaft, the cross-sections of the axis groove and the inner vibration shaft are both regular polygons, the upper parts of the inner vibration shaft and the outer rotating cylinder are fixedly installed with linked bevel gears, the circumferential side surfaces of the transverse axis are fixedly installed with anti-linked bevel gears, the bevel tooth surfaces of the two linked bevel gears are transmission-connected with the anti-linked bevel gears, and the two linked bevel gears are respectively arranged on both sides of the anti-linked bevel gears.

[0008] Preferably, the pollution inlet assembly includes a dust inlet pipe fixed to the top surface of the treatment tank, an air guide channel with openings at both ends is fixedly opened inside the dust guide shaft, the top of the air guide channel is rotatably connected to the dust inlet pipe, and a group of dust-permeable holes distributed in a circular array and connected to the air guide channel are opened inside the outer rotating cylinder and the inner vibration shaft.

[0009] Preferably, the positive pressure air plate is arranged on the outside of the dust hole, and the axis of the dust hole is perpendicular to the axis of the filter element.

[0010] Preferably, the anti-clearing component includes a wind shield fixed to the inner wall of the processing tank and arranged on the inner side of the filter element, and an anti-clearing cavity opened in the processing tank and arranged on the outer side of the filter element. An induced draft fan is fixedly installed on the surrounding side of the processing tank, the air inlet port of the induced draft fan is connected to the clean air exhaust pipe, and the air outlet port of the induced draft fan is connected to the anti-clearing cavity. The interior of the anti-clearing cavity is evenly distributed with anti-clearing spray holes facing the filter element. The surface of the wind shield is in contact with the filter element and the bottom end of the wind shield is open.

[0011] Preferably, the cleaning brush part includes a cleaning brush shaft rotatably connected to the inner wall of the treatment tank, a spiral brush piece that fits the filter element is fixedly installed on the circumferential side surface of the cleaning brush shaft and corresponds to the position on the inner side of the filter element, a driven gear is fixedly installed on the circumferential side surface of the cleaning brush shaft, and a driving gear ring is fixedly installed on the circumferential side surface of the outer rotating cylinder, and the tooth height of the driving gear ring is 8 times the tooth height of the driven gear.

[0012] The beneficial effects of the utility model are:

[0013] When the device is in use, on the one hand, it can effectively reduce the adhesion rate of dust on the dust filtering mechanism through the self-vibration and self-spin of the dust filtering mechanism, and realize self-dust shaking and self-dust removal of the dust filtering mechanism through the self-spin and self-vibration of the dust filtering mechanism; on the other hand, it can also realize online self-cleaning of the dust filtering mechanism during the dust filtering process through the spiral brush and the anti-cleaning component, thereby maintaining the high dust filtering performance of the dust filtering mechanism, and then realizing efficient treatment of polluted gases in the titanium dioxide production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of a polluted gas treatment device in the titanium dioxide production process of the utility model;

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0017] Figure 3 This utility model Figure 1 A schematic diagram of the cross-sectional structure of;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0019] Figure 5 This utility model Figure 3 A schematic diagram of the local enlarged structure at C in the middle;

[0020] Figure 6 This utility model Figure 3 Schematic diagram of the local enlarged structure at point D in the middle.

[0021] The markings in the attached figure are: 1. treatment tank; 2. vibration frame; 3. dust guide shaft; 4. external rotating cylinder; 5. internal vibration shaft; 6. filter element; 7. positive pressure wind plate; 8. clean air exhaust pipe; 9. ash collecting hopper; 10. ash discharge pipe; 11. motor; 12. gear shaft; 13. missing gear; 14. driven gear plate; 15. spring; 16. horizontal axis; 17. dust inlet pipe; 18. dust hole; 19. wind shield; 20. anti-cleaning chamber; 21. active gear ring; 22. induced draft fan; 23. cleaning brush shaft; 24. spiral brush; 25. driven gear. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 and Figure 6 As shown, a polluted gas treatment device in a titanium dioxide production process comprises a treatment tank 1, a dust vibrating mechanism is installed on the top of the treatment tank 1, and a vibration frame 2 and a dust guide shaft 3 are respectively connected to the surface of the dust vibrating mechanism;

[0025] The dust vibration mechanism includes a motor 11 fixed to the surface of the treatment tank 1, the output shaft end of the motor 11 is fixedly installed with a driving bevel gear, the peripheral side of the dust guide shaft 3 is rotatably connected to the treatment tank 1, the peripheral side of the dust guide shaft 3 is respectively fixedly installed with a first bevel gear ring and a second bevel gear ring, and the peripheral side of the first bevel gear ring is drivingly connected to the driving bevel gear;

[0026] The inner wall of the treatment tank 1 is rotatably connected with a gear shaft 12, and the peripheral side surfaces of the gear shaft 12 are respectively fixedly mounted with a missing gear 13 and a passive bevel gear, and the peripheral side surfaces of the second bevel gear ring are transmission-connected with the passive bevel gear;

[0027] A driven toothed plate 14 is fixedly mounted on the top surface of the vibration frame 2, and the peripheral side surface of the missing gear 13 is transmission-connected to the driven toothed plate 14. A spring 15 is installed between the opposite surfaces of the vibration frame 2 and the processing tank 1.

[0028] By setting the spring 15, the driven tooth plate 14, the missing gear 13 and other structures, after the motor 11 outputs the speed, on the one hand, the vibration frame 2 can drive the filter element 6 to reciprocate within the set stroke, and on the other hand, the filter element 6 can rotate at the set speed;

[0029] The inner wall of the vibration frame 2 is rotatably connected to the outer rotating cylinder 4, and the inner wall of the outer rotating cylinder 4 is rotatably connected to the inner vibration shaft 5. The inner vibration shaft 5 and the outer rotating cylinder 4 are both driven by the dust guide shaft 3;

[0030] The inner wall of the vibration frame 2 is rotatably connected with a transverse shaft 16, and the inner vibration shaft 5 is fixedly provided with an axis groove with a top opening and slidably connected with the dust guide shaft 3, and the cross sections of the axis groove and the inner vibration shaft 5 are both regular polygons;

[0031] The upper parts of the inner vibration shaft 5 and the outer rotating cylinder 4 are fixedly installed with linkage bevel gears, and the peripheral side surface of the horizontal shaft 16 is fixedly installed with anti-linked bevel gears. The bevel tooth surfaces of the two linkage bevel gears are transmission-connected with the anti-linked bevel gears, and the two linkage bevel gears are respectively arranged on both sides of the anti-linked bevel gears.

[0032] By setting the positions of the anti-connected bevel gear and the connected bevel gear, the rotation directions of the inner vibration shaft 5 and the outer rotating cylinder 4 are opposite;

[0033] A dirt inlet assembly that cooperates with the dust guide shaft 3 is installed at the axial position of the inner vibration shaft 5;

[0034] The dirt inlet assembly includes a dust inlet pipe 17 fixed to the top surface of the treatment tank 1, an air guide passage with openings at both ends is fixedly opened inside the dust guide shaft 3, the top of the air guide passage is rotatably connected to the dust inlet pipe 17, and a group of dust holes 18 distributed in a circumferential array and connected to the air guide passage are opened inside the outer rotating cylinder 4 and the inner vibration shaft 5;

[0035] The filter element 6 is fixedly mounted on the peripheral side of the inner vibration shaft 5 through a three-claw connecting frame;

[0036] A group of positive pressure air plates 7 are also installed on the peripheral side of the inner vibration shaft 5. The positive pressure air plates 7 are arranged on the outer side of the dust-permeable hole 18. The axis of the dust-permeable hole 18 is perpendicular to the axis of the filter element 6.

[0037] By setting the positive pressure air plate 7, the inner vibration shaft 5 can generate positive pressure when rotating, and increase the overflow rate of the filtered gas from the filter element 6;

[0038] A clean air exhaust pipe 8 is fixedly connected to the side of the processing tank 1, and a reverse cleaning component that cooperates with the filter element 6 and supplies air through the clean air exhaust pipe 8 is fixedly installed inside the processing tank 1. A cleaning brush driven by an external rotating cylinder 4 is installed on the inner wall of the processing tank 1. An ash hopper 9 is fixedly installed at the bottom end of the processing tank 1, and an ash discharge pipe 10 connected to the ash hopper 9 is installed at the lower part of the processing tank 1.

[0039] The anti-cleaning component includes a wind shield 19 fixed to the inner wall of the processing tank 1 and arranged on the inner side of the filter element 6, and an anti-cleaning chamber 20 opened in the processing tank 1 and arranged on the outer side of the filter element 6. An induced draft fan 22 is fixedly installed on the peripheral side of the processing tank 1. The air inlet port of the induced draft fan 22 is connected to the clean air exhaust pipe 8, and the air outlet port of the induced draft fan 22 is connected to the anti-cleaning chamber 20. The interior of the anti-cleaning chamber 20 is evenly distributed with anti-cleaning spray holes facing the filter element 6. The surface of the wind shield 19 is in contact with the filter element 6 and the bottom end of the wind shield 19 is open.

[0040] The cleaning brush part includes a cleaning brush shaft 23 rotatably connected to the inner wall of the treatment tank 1, a spiral brush piece 24 that fits the filter element 6 is fixedly installed on the circumferential side surface of the cleaning brush shaft 23 and corresponds to the position on the inner side of the filter element 6, a driven gear 25 is fixedly installed on the circumferential side surface of the cleaning brush shaft 23, and an active gear ring 21 is fixedly installed on the circumferential side surface of the outer rotating cylinder 4, and the tooth height of the active gear ring 21 is 8 times the tooth height of the driven gear 25.

[0041] The working principle of the utility model is as follows: when working, the dust inlet pipe 17 is connected with the dust output pipe in the titanium dioxide production process. When the dust-containing harmful gas is treated, the motor 11 outputs the speed at the set power. After the motor 11 outputs the speed, the spring 15, the driven gear plate 14, the missing gear 13 and other structures are set, so that after the motor 11 outputs the speed, on the one hand, the vibration frame 2 can drive the filter element 6 to reciprocate within the set stroke, and on the other hand, the filter element 6 can rotate at the set speed. Through the vibration and rotation of the filter element 6 Movement can realize self-shaking off of filtered dust inside the filter element 6 and uniform loss of the filter element 6, and when the motor 11 is working, the induced draft fan 22 works, and then drives the back-cleaning spray hole to recoil clean the filter element 6, and the filtered dust self-shaken off and the filtered dust recoil cleaned are collected through the ash discharge pipe 10 and discharged outward in due time. When the filter element 6 rotates, the spiral brush 24 physically brushes off the residual filtered dust inside the filter element 6, and then maintains the high filtering performance of the filter element 6, thereby realizing efficient purification of dust and harmful gases in the titanium dioxide production process.

Claims

1. A polluted gas treatment device in a titanium dioxide production process, comprising a treatment tank (1), characterized in that: A dust vibrating mechanism is installed on the top of the treatment tank (1), and the surface of the dust vibrating mechanism is respectively connected to a vibration frame (2) and a dust guide shaft (3) in a transmission manner. The inner wall of the vibration frame (2) is rotatably connected to an outer rotating cylinder (4), and the inner wall of the outer rotating cylinder (4) is rotatably connected to an inner vibration shaft (5). Both the inner vibration shaft (5) and the outer rotating cylinder (4) are driven by the dust guide shaft (3). A dirt inlet assembly that cooperates with the dust guide shaft (3) is installed at the axial position of the inner vibration shaft (5), and a filter element ( 6), a group of positive pressure wind plates (7) are also installed on the peripheral side of the inner vibration shaft (5), a clean air exhaust pipe (8) is fixedly connected to the side of the processing tank (1), a reverse cleaning component that cooperates with the filter element (6) and supplies air through the clean air exhaust pipe (8) is fixedly installed inside the processing tank (1), a cleaning brush member driven by an external rotating cylinder (4) is installed on the inner wall of the processing tank (1), an ash hopper (9) is fixedly installed at the bottom end of the processing tank (1), and an ash discharge pipe (10) connected to the ash hopper (9) is installed at the lower part of the processing tank (1).

2. The polluted gas treatment device in the titanium dioxide production process according to claim 1 is characterized by: The dust vibration mechanism comprises a motor (11) fixed to the surface of the processing tank (1), the output shaft end of the motor (11) is fixedly mounted with a driving bevel gear, the peripheral side surface of the dust guide shaft (3) is rotationally connected with the processing tank (1), the peripheral side surface of the dust guide shaft (3) is respectively fixedly mounted with a first bevel gear ring and a second bevel gear ring, the peripheral side surface of the first bevel gear ring is transmission-connected with the driving bevel gear, the inner wall of the processing tank (1) is rotationally connected with a gear shaft (12), the peripheral side surface of the gear shaft (12) is respectively fixedly mounted with a missing gear (13) and a passive bevel gear, the peripheral side surface of the second bevel gear ring is transmission-connected with the passive bevel gear, the top surface of the vibration frame (2) is fixedly mounted with a driven gear plate (14), the peripheral side surface of the missing gear (13) is transmission-connected with the driven gear plate (14), and a spring (15) is installed between the vibration frame (2) and the opposing surface of the processing tank (1).

3. The polluted gas treatment device in the titanium dioxide production process according to claim 2 is characterized by: The inner wall of the vibration frame (2) is rotatably connected with a transverse axis (16); the inner part of the inner vibration axis (5) is fixedly provided with an axis groove with a top opening and slidably connected to the dust guide axis (3); the cross-sections of the axis groove and the inner vibration axis (5) are both regular polygons; the upper parts of the inner vibration axis (5) and the outer rotating cylinder (4) are fixedly mounted with linkage bevel gears; the peripheral side surfaces of the transverse axis (16) are fixedly mounted with anti-linked bevel gears; the bevel tooth surfaces of the two linkage bevel gears are both transmission-connected with the anti-linked bevel gears; and the two linkage bevel gears are respectively arranged on both sides of the anti-linked bevel gears.

4. The polluted gas treatment device in the titanium dioxide production process according to claim 3 is characterized by: The dirt inlet assembly comprises a dust inlet pipe (17) fixed to the top surface of the treatment tank (1); an air guide passage with openings at both ends is fixedly provided inside the dust guide shaft (3); the top end of the air guide passage is rotatably connected to the dust inlet pipe (17); and a group of dust permeable holes (18) distributed in a circumferential array and connected to the air guide passage are provided inside the outer rotating cylinder (4) and the inner vibration shaft (5).

5. The polluted gas treatment device in the titanium dioxide production process according to claim 4 is characterized by: The positive pressure air plate (7) is arranged on the outside of the dust-permeable hole (18), and the axis of the dust-permeable hole (18) is perpendicular to the axis of the filter element (6).

6. The polluted gas treatment device in the titanium dioxide production process according to claim 5 is characterized by: The anti-cleaning component comprises a wind shield (19) fixed to the inner wall of the processing tank (1) and arranged on the inner side of the filter element (6), and an anti-cleaning chamber (20) opened in the processing tank (1) and arranged on the outer side of the filter element (6). An induced draft fan (22) is fixedly installed on the peripheral side of the processing tank (1). The air inlet port of the induced draft fan (22) is connected to the clean air exhaust pipe (8), and the air outlet port of the induced draft fan (22) is connected to the anti-cleaning chamber (20). Anti-cleaning spray holes facing the filter element (6) are evenly distributed inside the anti-cleaning chamber (20). The surface of the wind shield (19) is in contact with the filter element (6) and the bottom end of the wind shield (19) is open.

7. The polluted gas treatment device in the titanium dioxide production process according to claim 1 is characterized by: The cleaning brush member comprises a cleaning brush shaft (23) rotatably connected to the inner wall of the treatment tank (1); a spiral brush sheet (24) in contact with the filter element (6) is fixedly mounted on the peripheral side surface of the cleaning brush shaft (23) and at a position corresponding to the inner side of the filter element (6); a driven gear (25) is fixedly mounted on the peripheral side surface of the cleaning brush shaft (23); and a driving gear ring (21) is fixedly mounted on the peripheral side surface of the outer rotating cylinder (4); the tooth height of the driving gear ring (21) is 8 times the tooth height of the driven gear (25).

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