A device for welding PTFE lining to a storage tank

Abstract

This invention relates to the field of PTFE lining welding technology, specifically to a device for welding PTFE linings to storage tanks. The device includes a storage tank body, with PTFE lining plates evenly arranged on the inner wall of the tank body. Welding strips are arranged between the PTFE lining plates. An adjusting base is provided at the bottom of the storage tank body. A fixed foot is fixedly connected to one end of the adjusting base, and a first mating plate is fixedly connected to the top of the fixed foot. A movable foot is movably connected to the other end of the adjusting base. This invention, through the arrangement of the storage tank body, PTFE lining plates, welding strips, a second mating plate, and a support box, enables the equipment to quickly position, load, and adhere the PTFE lining plates to the storage tank body, and simultaneously perform rapid welding and sealing operations at the joints. In actual use, the operator first positions the storage tank body at the top of the adjusting base, and then inserts the insertion column frame on the back of the second mating plate into the center of the storage tank body.

Description

Technical Field

[0001] This invention relates to the field of PTFE lining welding technology, specifically to a device for welding PTFE linings of storage tanks. Background Technology

[0002] Polytetrafluoroethylene (PTFE) sheets are made by molding PTFE resin at room temperature, followed by sintering and cooling. Various PTFE products play a crucial role in the national economy, including chemical, machinery, electronics, electrical appliances, military, aerospace, environmental protection, and bridge construction. PTFE sheets are mainly used as electrical insulation materials, linings for contact with corrosive media, support sliders, rail seals, and lubricants. In light industry, they are widely used as anti-corrosion lining materials for containers, storage tanks, reaction towers, and large pipelines in the chemical, pharmaceutical, and dye industries, as well as in heavy industries such as aerospace and military. Corrosion-resistant storage tanks are essential and vital basic equipment in industries such as petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, and national defense. They are used in machinery, construction, transportation bridge sliders and guide rails, and as anti-sticking materials in printing and dyeing, light industry, and textiles. Our economic life is inseparable from corrosion-resistant storage tanks of all sizes. The important role of corrosion-resistant storage tanks in the development of the national economy is irreplaceable. For many enterprises, normal production is impossible without storage tanks. In particular, national strategic material reserves cannot be separated from corrosion-resistant storage tanks of various capacities and types. The inner lining of the storage tanks often adopts a welded PTFE plate structure.

[0003] For example, patent document CN 117532886 A discloses a device for welding PTFE lining to an anti-corrosion storage tank, relating to the field of anti-corrosion storage tank processing technology. It includes a slide rail and an electrically operated mounting base, with the base mounted on the slide rail. The upper end of the electrically operated mounting base is equipped with a limit mechanism, a welding zone, and a support mechanism. This invention provides a stable working platform for welding by ensuring the support mechanism moves synchronously and in the same direction as the welding zone. This supports the smooth welding of the weld seam using automatic welding, replacing manual welding with a stable and efficient automatic welding method. This reduces manual operation, avoids the instability and unevenness inherent in manual welding, and improves both welding quality and efficiency.

[0004] However, in actual use, due to its structural limitations, this structure often requires manual installation of the PTFE lining plates inside the tank. Because the PTFE lining plates are typically small, quick positioning and pasting within the tank is impossible, resulting in low installation efficiency. Furthermore, it cannot perform adaptive welding at the joints of the PTFE lining plates, failing to effectively improve the overall efficiency of the equipment for welding and installing the PTFE lining plates. Additionally, the equipment cannot perform rapid, individual tank-by-tank positioning and loading / unloading, necessitating manual positioning and adjustment during loading and unloading, severely impacting the overall equipment and failing to meet daily usage requirements. Therefore, there is an urgent need to design a PTFE lining welding device to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a device for welding PTFE linings to storage tanks, addressing the limitations of existing structures in practical use. These structures often require manual installation of the PTFE lining plates, which is hampered by the small size of the plates, making rapid positioning and bonding difficult and inefficient. Furthermore, the devices cannot perform adaptive welding at the joints, hindering overall equipment efficiency. Additionally, the devices cannot perform rapid, individual tank-by-tank positioning and loading / unloading, necessitating manual adjustment during loading and unloading, severely impacting the overall equipment and failing to meet daily usage requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a PTFE lining welding device for a storage tank, comprising a storage tank body, wherein PTFE lining plates are uniformly arranged on the inner wall of the storage tank body, welding strips are arranged between the PTFE lining plates, an adjusting base is provided at the bottom end of the storage tank body, a fixed foot is fixedly connected to one end of the adjusting base, a first mating plate is fixedly connected to the top of the fixed foot, and a movable foot is movably connected to the other end of the adjusting base.

[0007] The second docking plate is fixedly connected to the top of the movable foot. A support box is provided on the front of the second docking plate. A cover is provided on the top of the support box. A conveyor frame is fixedly connected to the bottom of the support box. An insertion column frame is provided on the back of the second docking plate. A welding rail frame is provided at the bottom of the back of the second docking plate. A welding head is provided at the bottom of the welding rail frame. An air pump is provided at one end of the insertion column frame.

[0008] Preferably, the side of the plug-in column frame is evenly provided with shrinkage grooves, the inside of the shrinkage groove is provided with a top-connecting airbag, and the surface of the top-connecting airbag is fixedly connected with a top-connecting pressure strip.

[0009] Preferably, a drive frame is fixedly connected to one side of the second docking plate, and a drive gear assembly is provided inside the drive frame.

[0010] Preferably, the inner wall of the second docking plate is provided with a rotating toothed ring, and a feeding arc groove is opened on one side of the inner wall of the rotating toothed ring. The feeding arc groove is connected to the bottom of one end of the bearing box, and an inner shaft seat is provided on the inner wall of the feeding arc groove.

[0011] Preferably, the conveyor frame has a conveyor trough inside, and a conveyor belt is installed inside the conveyor trough.

[0012] Preferably, an arc-shaped folding cover is provided between the storage tank body and the adjusting base frame, a torque shaft is provided between the two sides of the inner wall of the arc-shaped folding cover, an adhesive pad is provided at the center of the inner wall of the arc-shaped folding cover, and adhesive strips are provided on both sides of the inner wall of the arc-shaped folding cover.

[0013] Preferably, a drive motor is provided at one end of the adjusting base, and a reciprocating lead screw is fixedly connected to one end of the drive motor.

[0014] Preferably, the adjusting base frame has a limiting groove inside, and one end of the adjusting base frame has a limiting groove, with a damping sleeve provided on the inner wall of the limiting groove.

[0015] Preferably, the fixed foot has an internal center with a mounting base, a caster wheel at the bottom, and a sleeve connecting the back of the fixed foot via the mounting base. One end of the sleeve is provided with a lead screw sleeve.

[0016] Preferably, the second docking plate has a rotating groove inside, and the outer surfaces of the feeding plate arc groove are fitted with damping rubber rings at both ends.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This PTFE lining welding device for storage tanks, consisting of a tank body, PTFE lining plates, welding rods, a second docking plate, a support box, a cover, a conveyor frame, a plug-in column frame, a welding rail frame, a welding head, an air pump, a shrink trough, a top-connecting airbag, a top-connecting pressure strip, a drive frame, a drive gear assembly, a rotating gear ring, a plate feeding arc groove, an inner shaft seat, a conveyor trough, a conveyor belt, a rotating trough, and a damping rubber ring, enables the equipment to quickly position, load, and paste the PTFE lining plates into the tank body, and simultaneously perform rapid welding and sealing operations at the joints. In actual use, the operator first positions the tank body at the top of the adjusting base frame, and then inserts the plug-in column frame on the back of the second docking plate into the center of the tank body. At this point, the two ends of the tank body can be top-connected between the first and second docking plates. Then, all the PTFE lining plates inside the tank body are grouped together and placed into the support box, and sealed by pressing down with the cover. Normally, the conveyor belt inside the conveyor trough can be started to move the PTFE lining plates one by one along the conveyor belt. The conveyor frame transports the PTFE liner to the second docking plate. The PTFE liner can be adapted to pass through the feeding arc groove of the rotating gear ring and enter the interior of the storage tank. By controlling the drive frame and drive gear assembly on the side of the second docking plate, the rotating gear ring and the entire support box inside the second docking plate can be positioned and rotated for adjustment. This allows the PTFE liner fed into the support box to be quickly positioned and docked with the inner wall of the storage tank. Then, the welding head and air pump inside the storage tank will also be positioned and rotated with the rotating gear ring, thereby quickly realizing the welding operation at the welding strip of the PTFE liner joint. At the same time, during the welding process, the operator can adaptably start the air pump at one end of the insertion column frame to adapt to the welding of the PTFE liner inside the storage tank. This inflates the top airbag inside the corresponding shrinkage groove, making the top pressure strip on the surface of the top airbag more firmly bonded to the inner wall of the PTFE liner, ensuring stable adhesion and the firmness of the PTFE liner during welding, demonstrating the practicality of the equipment design.

[0019] The PTFE-lined storage tank is further enhanced by a PTFE welding device. This device, along with the tank body, adjusting base, fixed feet, first docking plate, movable feet, second docking plate, arc-shaped folding cover, torque shaft, adhesive pads, adhesive strips, drive motor, reciprocating screw, limit slide groove, limit groove, damping sleeve, mounting base, movable wheels, sleeve pipe, and screw sleeve, improves the overall performance of the equipment. During daily use, operators can start the drive motor at one end of the adjusting base, causing it to rotate the reciprocating screw within the limit slide groove. This allows the screw sleeve on the reciprocating screw to move the sleeve pipe and the fixed feet at one end, achieving limited movement adjustment. Combined with the damping sleeve at the limit groove and the movable wheels at the bottom of the fixed feet, this allows for precise control of the tank. The docking operation of the second mating plate on the top of the fixed foot and the adaptable docking operation of one end of the tank body allows the plug-in column frame to be quickly positioned and plugged into the inside of the tank body, facilitating rapid loading and unloading operations of the tank body at any time. At the same time, the tank body inside the adjusting base frame can be supported and limited by the arc-shaped folding cover. The two sides of the arc-shaped folding cover can be adapted to apply force towards the center through the torsion shaft, thereby ensuring that the entire tank body is always adhered and limited by the adhesive pads and adhesive strips on both sides. With the adaptive docking of the second mating plate at one end of the tank body, the tank body is more firmly and stably welded with the PTFE liner, and subsequent rapid loading and unloading operations can be carried out, improving the working efficiency of the equipment in welding the PTFE liner of the tank body and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the storage tank body of the present invention;

[0022] Figure 3 This is an overall schematic diagram of the second docking plate structure of the present invention;

[0023] Figure 4 This is an overall schematic diagram of the conveyor frame structure of the present invention;

[0024] Figure 5 This is an overall schematic diagram of the arc-shaped folding cover structure of the present invention;

[0025] Figure 6 This is an overall schematic diagram of the adjustable base frame structure of the present invention;

[0026] Figure 7 This is an overall schematic diagram of the fixed foot structure of the present invention;

[0027] Figure 8 For the present invention Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0028] In the diagram: 1. Tank body; 2. PTFE liner; 3. Welding strip; 4. Adjustable base frame; 5. Fixed feet; 6. First docking plate; 7. Movable feet; 8. Second docking plate; 9. Support plate box; 10. Cover; 11. Conveyor frame; 12. Insertion column frame; 13. Welded rail frame; 14. Welding head; 15. Air pump; 16. Shrink tank; 17. Top airbag; 18. Top pressure strip; 19. Drive frame; 20. Drive gear assembly; 2 1. Rotating gear ring; 22. Feeding plate arc groove; 23. Inner shaft seat; 24. Conveying trough; 25. Conveying belt; 26. Arc-shaped folding cover; 27. Torque shaft; 28. Adhesive pad; 29. ​​Adhesive strip; 30. Drive motor; 31. Reciprocating screw; 32. Limiting slide groove; 33. Limiting groove; 34. Damping sleeve; 35. Mounting base; 36. Moving wheel; 37. Sleeve tube; 38. Screw slide sleeve; 39. Rotating groove; 40. Damping rubber ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-4 One embodiment provided by the present invention:

[0031] A PTFE lining welding device for a storage tank includes a storage tank body 1. PTFE lining plates 2 are evenly arranged on the inner wall of the storage tank body 1. Welding strips 3 are arranged between the PTFE lining plates 2. An adjusting base frame 4 is provided at the bottom end of the storage tank body 1. A fixed foot 5 is fixedly connected to one end of the adjusting base frame 4, and a first mating plate 6 is fixedly connected to the top of the fixed foot 5. A movable foot 7 is movably connected to the other end of the adjusting base frame 4. An arc-shaped folding cover 26 is provided between the storage tank body 1 and the adjusting base frame 4. The inner surface of the arc-shaped folding cover 26... A torque shaft 27 is provided between the two sides of the wall. An adhesive pad 28 is provided at the center of the inner wall of the arc-shaped folding cover 26. Adhesive strips 29 are provided on both sides of the inner wall of the arc-shaped folding cover 26. A drive motor 30 is provided at one end of the adjusting base 4. A reciprocating screw 31 is fixedly connected to one end of the drive motor 30. A limit groove 32 is provided inside the adjusting base 4. A limit groove 33 is provided at one end of the adjusting base 4. A damping sleeve 34 is provided on the inner wall of the limit groove 33. A mounting bracket 5 is provided at the center of the interior. Mounting base 35, fixed foot base 5 has a movable wheel 36 at the bottom, and the back of fixed foot base 5 is fixedly connected to sleeve 37 through mounting base 35. One end of sleeve 37 is provided with screw sliding sleeve 38. The second docking plate 8 has a rotating groove 39 inside, and the outer surface of the feeding plate arc groove 22 is fitted with damping rubber rings 40 at both ends. When the drive motor 30 at one end of the adjusting base 4 is started, it drives the reciprocating screw 31 at one end to rotate and adjust inside the limiting sliding groove 32 of the adjusting base 4, so that the sleeve The screw sleeve 38 on the reciprocating screw 31 can drive the sleeve tube 37 and the fixed foot 5 at one end to perform limited movement adjustment. With the limiting of the damping sleeve 34 at the limiting groove 33 and the movement assistance of the moving wheel 36 at the bottom of the fixed foot 5, the docking operation of the second docking plate 8 at the top of the fixed foot 5 and the end of the storage tank body 1 can be realized. This allows the insertion column frame 12 to be quickly positioned and inserted inside the storage tank body 1, which facilitates the storage tank body 1 to perform quick loading and unloading operations at any time.

[0032] The second docking plate 8 is fixedly connected to the top of the movable foot 7. A support plate box 9 is provided on the front of the second docking plate 8, and a cover 10 is provided on the top of the support plate box 9. A conveyor frame 11 is fixedly connected to the bottom of the support plate box 9. An insertion column frame 12 is provided on the back of the second docking plate 8, and a welding rail frame 13 is provided at the bottom of the back of the second docking plate 8. A welding head 14 is provided at the bottom of the welding rail frame 13. An air pump 15 is provided at one end of the insertion column frame 12. Shrinkage grooves 16 are evenly distributed on the side of the support column 12. A top-connecting airbag 17 is installed inside the shrinkage groove 16, and a top-connecting pressure strip 18 is fixedly connected to the surface of the top-connecting airbag 17. A drive frame 19 is fixedly connected to one side of the second connecting plate 8. A drive gear assembly 20 is installed inside the drive frame 19. A rotating gear ring 21 is installed on the inner wall of the second connecting plate 8. A feeding arc groove 22 is opened on one side of the inner wall of the rotating gear ring 21, and the feeding arc groove 22 is connected to the bottom of one end of the support plate box 9. The inner wall of the plate feeding arc groove 22 is provided with an inner shaft seat 23. The inside of the conveying frame 11 is provided with a conveying groove 24, and the inside of the conveying groove 24 is provided with a conveyor belt 25. When the conveyor belt 25 inside the conveying groove 24 is started, the PTFE liners 2 are conveyed one by one along the conveying frame 11 to the second docking plate 8. The PTFE liners 2 can adaptably pass through the plate feeding arc groove 22 of the rotating gear ring 21 and enter the inside of the storage tank body 1. By controlling the drive frame 19 and drive gear group 20 on the side of the second docking plate 8, the rotating gear ring 21 inside the second docking plate 8 and the support plate box 9 can be positioned and rotated as a whole for adjustment. This allows the PTFE liners 2 fed into the support plate box 9 to be quickly positioned and docked with the inner wall of the storage tank body 1. Then, the welding head 14 and the air pump 15 inside the storage tank body 1 will also be positioned and rotated with the rotating gear ring 21, thereby quickly realizing the welding operation at the welding strip 3 of the PTFE liner 2 joint.

[0033] Working principle: During use, the operator first positions the tank body 1 on top of the adjusting base frame 4, and inserts the insertion column frame 12 on the back of the second docking plate 8 into the center of the tank body 1. At this time, the two ends of the tank body 1 can be connected between the first docking plate 6 and the second docking plate 8. Then, all the PTFE liners 2 on the inner wall of the tank body 1 are placed into the inside of the support box 9 and sealed by pressing down with the cover 10. Normally, the conveyor belt 25 inside the conveying trough 24 can be started, so that the PTFE liners 2 are conveyed one by one along the conveyor frame 11 to the second docking plate 8. The PTFE liners 2 can fit through the feeding arc groove 22 of the rotating toothed ring 21 and enter the inside of the tank body 1. By controlling the drive frame 19 and drive gear group 20 on the side of the second docking plate 8, the rotating gear ring 21 inside the second docking plate 8 and the entire support plate box 9 can be positioned and rotated for adjustment. This allows the PTFE liner 2 fed into the support plate box 9 to be quickly positioned and docked with the inner wall of the storage tank body 1. Then, the welding head 14 and the air pump 15 inside the storage tank body 1 will also rotate with the rotating gear ring 21, thereby quickly achieving the welding operation at the welding strip 3 of the PTFE liner 2 joint. At the same time, during the welding process, the operator can adaptably start the air pump 15 at one end of the insertion column frame 12 to adapt to the welding of the PTFE liner 2 inside the storage tank body 1, and activate the top airbag 17 inside the corresponding shrinkage groove 16. Inflation is performed to ensure that the top-mounting strip 18 on the surface of the top-mounting airbag 17 is more firmly attached to the inner wall of the PTFE liner 2, achieving stable adhesion while also ensuring the firmness of the PTFE liner 2 during welding. During daily use, the operator can start the drive motor 30 at one end of the adjusting base 4, causing it to rotate the reciprocating screw 31 within the limiting groove 32 of the adjusting base 4. This allows the screw sleeve 38, fitted on the reciprocating screw 31, to move the sleeve 37 and the fixed foot 5 at one end to a limited position. Combined with the limiting effect of the damping sleeve 34 at the limiting groove 33 and the movement assistance of the bottom moving wheel 36 of the fixed foot 5, the second docking plate 8 at the top of the fixed foot 5 is properly aligned with one end of the tank body 1. This operation allows the insertion column 12 to be quickly positioned and inserted inside the tank body 1, facilitating rapid loading and unloading operations. Simultaneously, the tank body 1, inside the adjusting base frame 4, is supported and limited by the arc-shaped folding cover 26. The two sides of the arc-shaped folding cover 26 can be adjusted towards the center via the torque shaft 27, ensuring that the tank body 1 is always supported and limited by the adhesive pads 28 and the adhesive strips 29 on both sides. Combined with the appropriate mating of the second mating plate 8 at one end of the tank body 1, this ensures a more robust and stable welding of the PTFE liner 2, and allows for subsequent rapid loading and unloading operations, improving the efficiency of the equipment in welding the PTFE liner 2 of the tank body 1.The above describes the entire working principle of this invention.

[0034] It will be apparent 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for welding PTFE lining to a storage tank, comprising a storage tank body (1), characterized in that: The inner wall of the storage tank body (1) is uniformly provided with PTFE lining plates (2), and welding strips (3) are provided between the PTFE lining plates (2). An adjusting base frame (4) is provided at the bottom of the storage tank body (1). A fixed foot (5) is fixedly connected to one end of the adjusting base frame (4), and a first docking plate (6) is fixedly connected to the top of the fixed foot (5). A movable foot (7) is movably connected to the other end of the adjusting base frame (4). The second docking plate (8) is fixedly connected to the top of the movable foot (7). The front of the second docking plate (8) is provided with a support box (9). The top of the support box (9) is provided with a cover (10). The bottom of the support box (9) is fixedly connected with a conveyor frame (11). The back of the second docking plate (8) is provided with a plug-in column frame (12). The bottom of the back of the second docking plate (8) is provided with a welding rail frame (13). The bottom of the welding rail frame (13) is provided with a welding head (14). One end of the plug-in column frame (12) is provided with an air pump (15).

2. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: The side of the plug-in column frame (12) is evenly provided with shrinkage grooves (16), and the inside of the shrinkage groove (16) is provided with a top-connecting airbag (17), and the surface of the top-connecting airbag (17) is fixedly connected with a top-connecting pressure strip (18).

3. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: A drive frame (19) is fixedly connected to one side of the second docking plate (8), and a drive gear set (20) is provided inside the drive frame (19).

4. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: The inner wall of the second docking plate (8) is provided with a rotating toothed ring (21), and a feeding arc groove (22) is provided on one side of the inner wall of the rotating toothed ring (21). The feeding arc groove (22) is connected to the bottom of one end of the bearing box (9), and an inner shaft seat (23) is provided on the inner wall of the feeding arc groove (22).

5. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: The conveyor frame (11) has a conveyor groove (24) inside, and a conveyor belt (25) is installed inside the conveyor groove (24).

6. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: An arc-shaped folding cover (26) is provided between the storage tank body (1) and the adjusting base frame (4). A torque shaft (27) is provided between the two sides of the inner wall of the arc-shaped folding cover (26). An adhesive pad (28) is provided at the center of the inner wall of the arc-shaped folding cover (26). Adhesive strips (29) are provided on both sides of the inner wall of the arc-shaped folding cover (26).

7. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: One end of the adjusting base (4) is provided with a drive motor (30), and one end of the drive motor (30) is fixedly connected to a reciprocating lead screw (31).

8. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: The adjustable base (4) has a limiting groove (32) inside, and a limiting groove (33) is provided at one end of the adjustable base (4). The inner wall of the limiting groove (33) is provided with a damping sleeve (34).

9. The PTFE lining welding device for a storage tank according to claim 1, characterized in that: The fixed foot (5) has an installation seat (35) at its internal center, and a moving wheel (36) is provided at the bottom end of the fixed foot (5). A sleeve (37) is fixedly connected to the back of the fixed foot (5) through the installation seat (35), and a lead screw sleeve (38) is provided at one end of the sleeve (37).

10. A PTFE lining welding device for a storage tank according to claim 4, characterized in that: The second docking plate (8) has a rotating groove (39) inside, and the outer surfaces of the feeding plate arc groove (22) are fitted with damping rubber rings (40) at both ends.

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