A filter device for removing fluorine from waste gas

Abstract

The utility model discloses a filtration device for removing fluorine from waste gas, including a waste gas defluorination filter tank body, an isolation protective sleeve is provided in the middle position inside the waste gas defluorination filter tank body, a defluorination filter cartridge is provided inside the isolation protective sleeve, the defluorination filter cartridge is connected to a combined inlay head through a suspension rod, a rubber sealing pad is provided on the outside of the combined inlay head, the combined inlay head is arranged below the tank cover, an air inlet is provided in the middle position of the top of the tank cover, fixing ears are provided on both sides of the tank cover, the lower ends of the fixing ears are connected to a telescopic rod, and the telescopic rod is arranged inside a lifting cylinder. In the utility model, the defluorination filter cartridge and the tank cover are integrated, and the tank cover is driven to switch by a lifting cylinder, so that the tank cover can achieve the effect of automatic opening and closing, which is more labor-saving. At the same time, in the process of opening the tank cover, the defluorination filter cartridge will also be driven to rise upward, so that the defluorination filter cartridge can be disassembled.

Description

Technical Field

[0001] The utility model relates to the field of waste gas defluorination equipment, in particular to a waste gas defluorination filtering device. Background Art

[0002] Fluorine-containing waste gas mainly refers to waste gas containing chlorine fluoride and silicon tetrafluoride, which mainly comes from the production processes of phosphate fertilizer in the chemical industry, aluminum plants in the metallurgical industry, and ceramics, glass, cement, bricks and tiles in the building materials industry. Among them, the electrolytic aluminum and phosphate fertilizer industries have the largest emissions. A large number of studies have shown that trace amounts of fluorine and its compounds can also cause extremely serious consequences to human and animal bodies. The main methods for purifying fluorine-containing waste gas are wet absorption and dry adsorption. Industrial fluorine-containing waste gas mostly uses wet absorption technology. According to different absorbents, the absorption purification method is divided into water absorption method and alkali absorption method.

[0003] The existing technology for exhaust gas defluorination filtering devices still has certain drawbacks in use. Traditional exhaust gas defluorination tanks are usually designed with a tank cover on the top, and the filter material is directly filled in the tank. When the filter material needs to be replaced, it is not convenient to replace or clean the internal filter material due to the deep tank body. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering device for removing fluorine from waste gas, so as to solve the problem that the traditional waste gas defluorination tank proposed in the above background technology is usually designed with a tank cover on the top, and then the filter material is directly filled in the tank. When the filter material needs to be replaced, it is not convenient to replace or clean the internal filter material due to the deep tank body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for defluorination of exhaust gas, comprising an exhaust gas defluorination filtering tank body, an isolation protective sleeve is provided in the middle position inside the exhaust gas defluorination filtering tank body, a defluorination filter material cartridge is provided inside the isolation protective sleeve, the defluorination filter material cartridge is connected to a combined inlay head through a suspension rod, a rubber sealing pad is provided on the outside of the combined inlay head, the combined inlay head is arranged below the tank cover, an air inlet is provided at the middle position of the top of the tank cover, fixing ears are provided on both sides of the tank cover, the lower ends of the fixing ears are connected to a telescopic rod, the telescopic rod is provided inside a lifting cylinder, a buffer spring is provided on the top of the lifting cylinder, the lifting cylinder is provided on both sides of the exhaust gas defluorination filtering tank body, an air outlet is provided at the center position of the bottom of the exhaust gas defluorination filtering tank body, fixed tripods are provided on both sides of the bottom of the exhaust gas defluorination filtering tank body, and a bottom plate is provided at the bottom of the fixed tripod.

[0006] In a further embodiment, a plurality of hexagonal punchings are provided on the surface of the isolation protective sleeve, and the bottom of the isolation protective sleeve is fixedly connected to the exhaust gas defluorination filter tank body through a support frame.

[0007] In a further embodiment, the defluorination filter cartridge is connected to the isolation protective sleeve by inlaying, a combined inlaying opening is provided on the top of the isolation protective sleeve, and the tank cover and the isolation protective sleeve are fixedly connected to the combined inlaying opening by a combined inlaying head.

[0008] In a further embodiment, the upper end of the suspension rod is connected to the combined mounting head by welding, and the lower end of the suspension rod is connected to the defluorination filter cartridge by rotation.

[0009] In a further embodiment, a sealing cover is provided on the top of the defluorination filter cartridge, a lower air vent is provided inside the sealing cover, an upper air vent is provided inside the combined mounting head, and the lower air vent is connected to the upper air vent by snap-fitting.

[0010] In a further embodiment, the tank cover and the exhaust gas defluorination filter tank body are fixedly connected by locking bolts and locking screws, and the fixing ears and the tank cover are connected by welding.

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

[0012] 1. In the utility model, the defluorination filter cartridge and the tank cover are integrated, and the tank cover is driven to open and close by a lifting cylinder, so that the tank cover can achieve the effect of automatic opening and closing, which is more labor-saving. At the same time, in the process of opening the tank cover, the defluorination filter cartridge will also be driven to rise upward, so that the defluorination filter cartridge can be disassembled, and the defluorination filter cartridge is set as a rotatable structure. By rotating, the defluorination filter cartridge can be adjusted to a horizontal state, which is convenient for pouring out and cleaning the filter material and replacing the filter material. This operation method is simpler, more convenient and easier to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a filter device for removing fluorine from waste gas according to the utility model;

[0014] Figure 2 This is a schematic diagram of the disassembly structure of the defluorination filter cartridge of the utility model;

[0015] Figure 3 It is a rear view of the defluorination filter cartridge of the utility model;

[0016] Figure 4 It is a side view of a filter device for removing fluorine from exhaust gas according to the utility model;

[0017] Figure 5 It is a top view of the defluorination filter cartridge of the utility model.

[0018] In the figure: 1. tank cover; 2. locking bolt; 3. air inlet; 4. fixing ear; 5. buffer spring; 6. lifting cylinder; 7. exhaust gas defluorination filter tank; 8. defluorination filter cartridge; 9. air outlet; 10. bottom plate; 11. fixed tripod; 12. telescopic rod; 13. hanging rod; 14. upper air vent; 15. combined inlay head; 16. rubber sealing pad; 17. locking screw mouth; 18. combined inlay mouth; 19. isolation protective cover; 20. support frame; 21. sealing cover; 22. lower air vent. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-5 , the utility model provides an embodiment: a filtration device for removing fluorine from waste gas, comprising a waste gas defluorination filter tank body 7, an isolation protective sleeve 19 is provided in the middle position inside the waste gas defluorination filter tank body 7, a defluorination filter material cartridge 8 is provided inside the isolation protective sleeve 19, the defluorination filter material cartridge 8 is connected to a combined inlay head 15 through a suspension rod 13, a rubber sealing pad 16 is provided on the outside of the combined inlay head 15, the combined inlay head 15 is arranged below a tank cover 1, an air inlet 3 is provided in the middle position of the top of the tank cover 1, fixing ears 4 are provided on both sides of the tank cover 1, the lower ends of the fixing ears 4 are connected to a telescopic rod 12, the telescopic rod 12 is arranged inside a lifting cylinder 6, a buffer spring 5 is provided on the top of the lifting cylinder 6, the lifting cylinder 6 is arranged on both sides of the waste gas defluorination filter tank body 7, and an air outlet 9 is provided at the center position of the bottom of the waste gas defluorination filter tank body 7 Fixed brackets 11 are provided on both sides of the bottom of the exhaust gas defluorination filter tank body 7, and a bottom plate 10 is provided at the bottom of the fixed bracket 11. The isolation protective sleeve 19 is used to protect the defluorination filter material cylinder 8, and at the same time, the interior of the exhaust gas defluorination filter tank body 7 is isolated into two spaces. The defluorination filter material cylinder 8 is used to store the filter material and defluorinate the exhaust gas. The suspension rod 13 is used to suspend the defluorination filter material cylinder 8 under the tank cover 1, and the tank cover 1 is used to seal the exhaust gas defluorination filter tank body 7. The fixing ear 4 is used to fix the top of the telescopic rod 12, and the lifting cylinder 6 is used to lift and lower the tank cover 1. The air inlet 3 is used to transport the exhaust gas into the exhaust gas defluorination filter tank body 7, and the air outlet 9 is used to discharge the clean air. The fixed bracket 11 is used to fix the height support of the exhaust gas defluorination filter tank body 7 and the bottom.

[0021] The surface of the isolation protective sleeve 19 is provided with a plurality of hexagonal punching holes, and the bottom of the isolation protective sleeve 19 is fixedly connected to the exhaust gas defluorination filter tank body 7 through a support frame 20, and the support frame 20 is used to increase the stability of the installation of the isolation protective sleeve 19; the defluorination filter cartridge 8 and the isolation protective sleeve 19 are connected by inlaying, and a combined inlaying opening 18 is provided on the top of the isolation protective sleeve 19, and the tank cover 1 and the isolation protective sleeve 19 are fixedly connected by a combined inlaying head 15 and the combined inlaying opening 18, and the combined inlaying head 15 and the combined inlaying opening 18 are connected to seal the gap between the tank cover 1 and the isolation protective sleeve 19 to improve the sealing performance.

[0022] The upper end of the suspension rod 13 is connected to the combined mounting head 15 by welding, and the lower end of the suspension rod 13 is connected to the defluorination filter cartridge 8 by rotation. The welding connection is used to increase the firmness of the installation of the upper end of the suspension rod 13 and the combined mounting head 15, and the rotation connection facilitates the rotation adjustment of the defluorination filter cartridge 8.

[0023] A sealing cover 21 is provided on the top of the defluorination filter cartridge 8, a lower air vent 22 is provided inside the sealing cover 21, an upper air vent 14 is provided inside the combined inlay head 15, and the lower air vent 22 is connected to the upper air vent 14 by snap-fitting, and the sealing cover 21 is used to seal the defluorination filter cartridge 8.

[0024] The tank cover 1 is fixedly connected to the exhaust gas defluorination filter tank body 7 through the locking bolt 2 and the locking screw 17, and the fixing ear 4 is connected to the tank cover 1 by welding, and the locking bolt 2 is used to fix the closed position of the tank cover 1.

[0025] Working principle: When in use, the exhaust gas enters from the air inlet 3, and enters the defluorination filter cartridge 8 from the upper air vent 14 and the lower air vent 22 in turn. The fluorine in the exhaust gas is filtered and purified by the filter material in the defluorination filter cartridge 8, and is dispersed outward through the isolation protective sleeve 19, concentrated on the inner wall of the exhaust gas defluorination filter tank body 7, and finally discharged through the air outlet 9. When the filter material needs to be replaced inside, the telescopic rod 12 is driven downward to the highest position by the lifting cylinder 6 to separate the defluorination filter cartridge 8 from the isolation protective sleeve 19, and the top of the defluorination filter cartridge 8 is turned downward to place it horizontally, and the sealing cover 21 is opened, and the filter material inside is poured out into the required recovery container, and then the inner wall of the isolation protective sleeve 19 is cleaned, and a new filter bag is placed in the defluorination filter cartridge 8, and it is rotated upward to make the lower air vent 22 and the upper air vent 14 embedded, and then the tank cover 1 is lowered and closed by the lifting cylinder 6, and the locking bolt 2 is tightened to fix it.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filtration device for removing fluorine from waste gas, comprising a waste gas fluorine removal filtration tank (7), characterized in that: An isolation protective sleeve (19) is provided in the middle of the interior of the exhaust gas defluorination filter tank body (7), a defluorination filter cartridge (8) is provided in the interior of the isolation protective sleeve (19), the defluorination filter cartridge (8) is connected to a combined mounting head (15) via a suspension rod (13), a rubber sealing pad (16) is provided on the exterior of the combined mounting head (15), the combined mounting head (15) is arranged below the tank cover (1), an air inlet (3) is provided in the middle of the top of the tank cover (1), and fixing ears (16) are provided on both sides of the tank cover (1). 4), the lower end of the fixing ear (4) is connected to a telescopic rod (12), the telescopic rod (12) is arranged inside a lifting cylinder (6), a buffer spring (5) is arranged on the top of the lifting cylinder (6), the lifting cylinder (6) is arranged on both sides of an exhaust gas defluorination filter tank body (7), an air outlet (9) is arranged at the center of the bottom of the exhaust gas defluorination filter tank body (7), fixed brackets (11) are arranged on both sides below the exhaust gas defluorination filter tank body (7), and a bottom plate (10) is arranged at the bottom of the fixed brackets (11).

2. The filtration device for removing fluorine from exhaust gas according to claim 1, characterized in that: The surface of the isolation protection sleeve (19) is provided with a plurality of hexagonal punching holes, and the bottom of the isolation protection sleeve (19) is fixedly connected to the exhaust gas defluorination filter tank body (7) via a support frame (20).

3. The filtration device for removing fluorine from exhaust gas according to claim 1, characterized in that: The defluorination filter cartridge (8) is connected to the isolation protection sleeve (19) by embedding, a combined embedding opening (18) is provided on the top of the isolation protection sleeve (19), and the tank cover (1) and the isolation protection sleeve (19) are fixedly connected to the combined embedding opening (18) by a combined embedding head (15).

4. The filtration device for removing fluorine from exhaust gas according to claim 1, characterized in that: The upper end of the suspension rod (13) is connected to the combined inlay head (15) by welding, and the lower end of the suspension rod (13) is connected to the defluorination filter cartridge (8) by rotation.

5. The filtration device for removing fluorine from exhaust gas according to claim 1, characterized in that: A sealing cover (21) is provided on the top of the defluorination filter cartridge (8), a lower vent (22) is provided inside the sealing cover (21), an upper vent (14) is provided inside the combined inlay head (15), and the lower vent (22) is connected to the upper vent (14) by snap-fitting.

6. The filtration device for removing fluorine from exhaust gas according to claim 1, characterized in that: The tank cover (1) and the exhaust gas defluorination filter tank body (7) are fixedly connected via locking bolts (2) and locking screws (17), and the fixing ears (4) and the tank cover (1) are connected via welding.

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