Device for removing passivation solution inside and outside galvanized pipe

Abstract

The invention discloses a device for removing passivation liquid inside and outside a galvanized pipe, and particularly relates to the field of galvanized pipe machining. The device for removing the passivation solution inside and outside the galvanized pipe comprises a machining table, a collecting tank is arranged on the machining table, a pair of linear modules is arranged on the machining table, a moving frame is arranged at the sliding position of each linear module, and the other side of each moving frame is rotationally connected with a hollow rotating shaft; each hollow rotating shaft is provided with a blocking piece used for blocking the end opening of the galvanized pipe, each blocking piece comprises a conical sleeve, and one end of one blocking piece is provided with a liquid removing piece. The liquid removing piece comprises a plug barrel and a pair of wear-resistant scraping rings fixedly connected to the outer surface of the plug barrel, the wear-resistant scraping rings are slidably connected into the galvanized pipe, and metal blocks are fixedly connected to the two ends of the plug barrel. The problems that the existing galvanized pipe passivation solution removing efficiency is low, and the size applicability is poor during galvanized pipe passivation solution removing are solved.

Description

Technical Field

[0001] The invention relates to the technical field of galvanized pipe processing, and more specifically to a device for removing passivation liquid inside and outside a galvanized pipe. Background Art

[0002] Galvanized pipes, also called galvanized steel pipes, are pipe products with a zinc coating on the surface of steel, so the material of galvanized pipes is actually steel. Galvanized pipes are steel pipes with zinc coatings on the inner and outer surfaces. The zinc coating is easily damaged after being attached, so passivation treatment is essential in the production of galvanized pipes. Passivation treatment is an important step in the production of galvanized steel pipes, and its purpose is to convert the metal surface into a state that is not easily oxidized. After the galvanized pipe is passivated, there is passivation liquid residue on the inside and outside of the galvanized pipe, which needs to be removed because the residual passivation liquid is easy to pollute the environment and cause harm to people's health.

[0003] Patent No. CN116899998B discloses a device for quickly removing passivation liquid inside and outside a galvanized pipe, which relates to the technical field of removal devices, including a processing table, the bottom four corners of the processing table are fixedly connected with support rods, the support rods are fixedly connected with fixed rods, the top surface of the processing table is fixedly installed with an operating table, the surface of the operating table is fixedly installed with a display, the top surface of the processing table is fixedly connected with a pair of support seats, the top of the pair of support seats is fixedly connected with a top plate, and a pair of guide rods are movably inserted on the top plate. The invention has a reasonable structure, which realizes that one end of the galvanized pipe is placed on two sets of pulleys, and then the second side plate is moved to the second support plate, and then one end of the galvanized pipe is clamped in the ring by rotating the toothed disc, and it is fixed by bolts. The rotation of the ring facilitates the rotation of the galvanized pipe, and the passivation liquid remaining on the inner and outer surfaces of the galvanized pipe is quickly adsorbed by the sponge wheel and the brush.

[0004] In the above patent, the inventor believes that although the patent can remove the passivation liquid inside and outside the galvanized pipe when in use, when the sponge wheel and the brush are excessively attached to the passivation liquid and become saturated, the efficiency of subsequent removal of the passivation liquid is affected; in addition, the patent has the problem of poor size applicability when connected with the galvanized pipe. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a device for removing passivation liquid inside and outside a galvanized pipe. The technical problems to be solved by the present invention are: low removal efficiency of passivation liquid in galvanized pipes and poor size applicability of passivation liquid removal in galvanized pipes.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for removing passivation liquid inside and outside a galvanized pipe, comprising a processing table, a collecting tank is arranged on the processing table, a pair of linear modules are arranged on the processing table, and a moving frame is arranged at the sliding part of each linear module, and a hollow rotating shaft is rotatably connected to the other side of the moving frame, and a plugging piece for plugging the port of the galvanized pipe is arranged on each hollow rotating shaft, and the plugging piece includes a conical sleeve, and a liquid removal piece is arranged at one end of one of the plugging pieces;

[0007] The liquid removal part includes a plug barrel and a pair of wear-resistant scraper rings fixedly connected to the outer surface of the plug barrel, the wear-resistant scraper rings are slidably connected in the galvanized pipe, both ends of the plug barrel are fixedly connected to metal blocks, and each sealing part is provided with an adsorption part for adsorbing and fixing the metal block;

[0008] Air guide pipes, the number of which is two, and the air guide pipes are connected to the hollow rotating shaft;

[0009] A lifting mechanism 1, wherein the lifting mechanism 1 is arranged on the processing table, and a pair of rolling support members for rolling support of the galvanized pipe are arranged on the lifting mechanism 1, and a lifting mechanism 2 is arranged on the lifting mechanism 1, and an air injection pipe is arranged on the lifting mechanism 2, and the air injection pipe corresponds to the position directly above the rolling support member, and the air injection pipe is connected to the air guide pipe member;

[0010] The limiting rolling members are two pairs in number and are distributed in pairs on both sides of the jet pipe. The limiting rolling members are used to limit the rolling of the galvanized pipe. A rotating device is provided on one of the limiting rolling members, and the limiting rolling members drive the galvanized pipe to rotate through the driving of the rotating device.

[0011] In a preferred embodiment, a plug is provided on one side of the processing table, a drainage groove is provided on the same axis as the plug, the plug is threadedly connected to one end of the drainage groove, and the drainage groove is connected to the collecting groove.

[0012] In a preferred embodiment, a slide bar is mounted on the processing table, and a pair of movable frames are slidably connected to the slide bar.

[0013] In a preferred embodiment, the sealing member further comprises at least three sealing cone pads fixedly connected to the outer surface of the conical sleeve, the three sealing cone pads are arranged in decreasing sizes facing the galvanized pipe opening, and the conical sleeve is fixedly connected to the hollow rotating shaft.

[0014] In a preferred embodiment, the wear-resistant scraper ring disposed on the plug barrel is arranged in a mirror image.

[0015] In a preferred embodiment, one side of the mobile frame is fixedly connected to an assembly frame, the air guide pipe comprises a three-way pipe fixedly connected to the assembly frame and a pair of valves arranged on the three-way pipe, and a rotating joint is arranged at the opposite ends of the three-way pipe and the hollow rotating shaft;

[0016] A heating device is fixedly connected to the movable frame, an air inlet of the heating device is provided with an air inlet pipe, and an air outlet of the heating device is connected to the three-way pipe.

[0017] In a preferred embodiment, the adsorption member includes an electromagnet fixedly connected to one end of the conical sleeve, the electromagnet is magnetically connected to the metal block, and a conductive slip ring for supplying power to the electromagnet is fixedly embedded on the assembly frame.

[0018] In a preferred embodiment, the lifting mechanism 1 includes a pair of telescopic devices 1 fixedly connected to the processing table and a lifting frame fixedly connected to the output ends of the pair of telescopic devices 1, and the processing table is fixedly connected with a light rod that movably passes through the lifting frame; the lifting mechanism 2 includes a fixed frame fixedly connected to the lifting frame and a telescopic device 2 fixedly connected to the fixed frame.

[0019] In a preferred embodiment, the rolling support member includes a rotating frame fixedly connected to the lifting frame and a pair of rollers 1 rotatably connected to the rotating frame; the limiting rolling member includes a support frame fixedly connected to the outer surface of the jet pipe and a roller 2 rotatably connected to the support frame, the rotating device is fixedly connected to the support frame, and the output end of the rotating device is coaxially fixedly connected to the roller 2.

[0020] In a preferred embodiment, an air nozzle is provided at the bottom of the air jet pipe, a reinforcement plate is fixedly connected to the top of the air jet pipe, the output end of the telescopic device 2 is fixedly connected to the reinforcement plate, and a spring tube is fixedly connected to the air jet pipe and the three-way pipe.

[0021] Technical effects and advantages of the present invention:

[0022] The invention discloses a device for removing passivation liquid inside and outside a galvanized pipe. A pair of linearly movable plugging parts are provided. Under the condition of satisfying the plugging connection of galvanized pipes with multiple specifications and calibers, pressurized heat source gas is introduced into the galvanized pipe by an external air pump device. The liquid removal parts electromagnetically adsorbed on the galvanized pipe can move in the galvanized pipe under the action of air pressure and scrape off the passivation liquid. At the same time, because the gas carries a heat source, the drying of the inside of the galvanized pipe can be promoted, thereby improving the thoroughness of removing the passivation liquid in the pipe.

[0023] The device for removing passivation liquid inside and outside a galvanized pipe of the present invention provides a rolling limit for the galvanized pipe. During the rotation of the galvanized pipe, the heat source gas is used by branching, and the air jet pipe can blow air downwardly from the top of the galvanized pipe, thereby accelerating the flow of air. This can speed up the downward separation of the passivation liquid outside the galvanized pipe and achieve a drying effect. Since the passivation liquid inside and outside the galvanized pipe can be removed at the same time, and the passivation liquid is removed by scraping and accelerating the air flow, the removal efficiency can be improved.

[0024] The device for removing passivation liquid inside and outside a galvanized pipe of the present invention utilizes a liftable limiting rolling member and a rolling support member, as well as a linearly movable blocking member, so that it can adapt to galvanized pipes of various lengths and diameters within a certain range to realize rolling limiting support and blocking docking, and has a wide range of application for removing passivation liquid from galvanized pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the linear module, movable frame, tapered sleeve and plug cylinder of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the tapered sleeve of the present invention.

[0028] Figure 4 It is a schematic diagram of the plug structure of the present invention.

[0029] Figure 5 For the present invention Figure 2 Enlarged view of part A in the middle.

[0030] Figure 6 It is a schematic structural diagram of a lifting device 1 and a rolling support member of the present invention.

[0031] Figure 7 It is a schematic structural diagram of the lifting device 2, the air injection pipe and the limiting rolling element of the present invention.

[0032] The accompanying drawings are marked as follows: 1, processing table; 2, collecting tank; 3, linear module; 4, moving frame; 41, assembly frame; 42, hollow shaft; 5, conical sleeve; 51, sealing cone pad; 6, plug cylinder; 61, wear-resistant scraper ring; 7, metal block; 8, electromagnet; 9, air guide pipe; 91, three-way pipe; 92, valve; 10, heating device; 11, air inlet pipe; 12, lifting mechanism 1; 121, telescopic device 1; 122, lifting frame; 13. Rolling support; 131. Rotating frame; 132. Roller 1; 14. Lifting mechanism 2; 141. Fixed frame; 142. Telescopic device 2; 15. Jet pipe; 151. Jet nozzle; 16. Limiting rolling element; 161. Support frame; 162. Roller 2; 17. Rotating device; 18. Blockage; 19. Sliding rod; 20. Bare rod; 21. Rotary joint; 22. Conductive slip ring; 23. Reinforcement plate; 24. Spring tube. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Combined with reference Figure 1-Figure 4 The present invention provides a device for removing passivation liquid inside and outside a galvanized pipe, comprising a processing table 1, on which a collecting tank 2 is provided, and the collecting tank 2 can be used to collect the passivation liquid inside and outside the galvanized pipe, a pair of linear modules 3 are provided on the processing table 1, and a moving frame 4 is provided at the sliding part of each linear module 3, one side of each moving frame 4 is fixedly connected to an assembly frame 41, and the other side of the moving frame 4 is rotatably connected to a hollow rotating shaft 42, the hollow rotating shaft 42 can facilitate threading and air conduction, and each hollow rotating shaft 42 is provided with a plugging piece for plugging the galvanized pipe port, the plugging piece includes a conical sleeve 5, and one end of one of the plugging pieces is provided with a liquid removal piece.

[0035] A plug 18 is provided on one side of the processing table 1, and a drainage groove is opened on one side of the processing table 1 and is arranged on the same axis as the plug 18. The plug 18 is threadedly connected to one end of the drainage groove, and the drainage groove is connected to the collecting groove 2. Removing the plug 18 can facilitate the discharge of the passivation liquid in the collecting groove 2.

[0036] A slide bar 19 is mounted on the processing table 1, and a pair of moving frames 4 are slidably connected to the slide bar 19. When the linear module 3 gives the moving frames 4 the ability to move linearly, the slide bar 19 can further improve the stability of the horizontal movement of the moving frames 4.

[0037] The sealing member also includes at least three sealing cone pads 51 fixedly connected to the outer surface of the conical sleeve 5. The sizes of the three sealing cone pads 51 facing the galvanized pipe opening are arranged in a decreasing manner. The conical sleeve 5 is fixedly connected to the hollow rotating shaft 42. The arrangement of the sealing cone pads 51 can be applicable to galvanized pipes of various diameters within a certain range for port sealing, so as to add pressurized air source to the galvanized pipe. Since the conical sleeve 5 is arranged on the hollow rotating shaft 42, the hollow rotating shaft 42 can transport the air source through the air guide pipe 9.

[0038] The liquid removal component includes a plug tube 6 and a pair of wear-resistant scraper rings 61 fixedly connected to the outer surface of the plug tube 6. The wear-resistant scraper rings 61 are slidably connected in the galvanized pipe. Both ends of the plug tube 6 are fixedly connected with metal blocks 7. Each sealing component is provided with an adsorption component for adsorbing and fixing the metal block 7. The adsorption component can pre-fix the liquid removal component on the conical sleeve 5 through the metal block 7. When the conical sleeve 5 is inserted into the corresponding port of the galvanized pipe, the liquid removal component can be lowered into the galvanized pipe.

[0039] The wear-resistant scraper ring 61 arranged on the plug tube 6 is arranged in a mirror image. The wear-resistant scraper ring 61 can be made of corrosion-resistant rubber material. Under the action of the air source pushing the plug tube 6, the wear-resistant scraper ring 61 can scrape away the passivation liquid in the galvanized pipe. Because a pair of wear-resistant scraper rings 61 are provided, when the plug tube 6 moves in the forward and reverse directions, the wear-resistant scraper ring 61 can scrape the passivation liquid in the pipe.

[0040] The adsorption component includes an electromagnet 8 fixedly connected to one end of the conical sleeve 5, the electromagnet 8 is magnetically connected to the metal block 7, and a conductive slip ring 22 for supplying power to the electromagnet 8 is fixedly embedded on the assembly frame 41, and the conductive slip ring 22 is a rotating common power supply accessory in the prior art; a pair of electromagnets 8 can switch the magnetic attraction function alternately, so that the liquid removal component sliding in the galvanized pipe can flexibly continue to be adsorbed and docked with the conical sleeve 5, and the liquid removal component can quickly locate the position while effectively removing the passivation liquid in the galvanized pipe, so as to facilitate the subsequent use of the passivation liquid of the galvanized pipe.

[0041] The above-mentioned device for removing passivation liquid inside and outside the galvanized pipe also includes an air guide pipe 9, a lifting mechanism 1 12, a lifting mechanism 2 14, an air injection pipe 15 and a limiting rolling member 16.

[0042] Combined with reference Figure 5The number of air guide pipes 9 is two groups, and they are respectively arranged on a pair of assembly frames 41. The air guide pipes 9 are connected to the hollow rotating shaft 42. The air guide pipes 9 include a three-way pipe 91 fixedly connected to the assembly frame 41 and a valve 92 arranged on the three-way pipe 91. The opposite ends of the three-way pipe 91 and the hollow rotating shaft 42 are provided with a rotary joint 21. The mobile frame 4 is fixedly connected with a heating device 10. The air inlet of the heating device 10 is provided with an air inlet pipe 11. The air outlet of the heating device 10 is connected to the air guide pipe 9. The heating device 10 can use a heater, and the air inlet pipe 11 can be externally connected to an air pump device. In this way, the air pressed in by the air pump can be heated by the heater, so as to provide a hot pressurized air source for removing the passivation liquid of the galvanized pipe. The pair of valves 92 in the present application respectively adopt a one-way valve and a pressure regulating valve. The one-way valve is set on a part of the three-way pipe 91 close to the injection pipe 15, and the pressure regulating valve is set on a part of the three-way pipe 91 close to the heating device 10. The advantage of this design is that when the liquid removal component moves from left to right and from right to left on the galvanized pipe, the air pressed out of the galvanized pipe through the hollow rotating shaft 42 can be isolated by the pressure regulating valve and introduced into the injection pipe 15 by the one-way valve.

[0043] Specifically, the linear module 3 is used to provide the plugging piece with lateral mobility, so that a pair of plugging pieces can be blocked at the port of the galvanized pipe. At this time, the plug cylinder 6 located on one of the conical sleeves 5 can enter the galvanized pipe to control the electromagnet 8 at this location to be powered off, and the electromagnet 8 at another location to be powered on. At the same time, the pressurized gas is input by the external air pump device, and the pressurized gas can be sent into the hollow shaft 42 through the three-way pipe 91 through the heating device 10. In this way, the pressurized gas with a heat source can push the plug cylinder 6 to move in the galvanized pipe, and the hollow shaft facing the moving direction of the plug cylinder 6 42 can be used for exhaust, and the gas can be isolated by the pressure regulating valve and released into the injection pipe 15 through the one-way valve. At this time, the wear-resistant scraper ring 61 can scrape the passivation liquid in the pipe until the metal block 7 on the plug cylinder 6 is adsorbed on the electromagnet 8 in the energized state to achieve positioning, so that the scraping of the passivation liquid in the pipe can be completed. At this time, the sealing part can be controlled to be away from the port of the galvanized pipe, so that the leaked liquid removal part can collect the passivation liquid brought out into the collection tank 2; because the liquid removal part can be alternately fixed on a pair of conical sleeves 5, it can be directly connected and used when processing subsequent galvanized pipes.

[0044] In addition, when removing the passivation liquid from galvanized pipes of different specifications, it is only necessary to replace the liquid removal parts that match the size.

[0045] It is worth noting that the wire connected to the output end of the conductive slip ring 22 in the present application can be a high-temperature resistant wire, which can be sealed and penetrate the three-way pipe 91 to be electrically connected to the electromagnet 8, so that the electromagnet 8 can be stably electrically controlled in a rotating state.

[0046] Combined with reference Figure 6A lifting mechanism 12 is arranged on the processing table 1, and a pair of rolling supports 13 for rolling support of the galvanized pipe are arranged on the lifting mechanism 12. A lifting mechanism 2 14 is arranged on the lifting mechanism 12, and an air jet pipe 15 is arranged on the lifting mechanism 2 14. An air jet nozzle 151 is arranged at the bottom of the air jet pipe 15. The air jet pipe 15 corresponds to the position directly above the rolling support 13, and the air jet pipe 15 is connected to the air guide pipe 9.

[0047] The lifting mechanism 12 includes a pair of telescopic devices 121 fixedly connected to the processing table 1 and a lifting frame 122 fixedly connected to the output end of the pair of telescopic devices 121. The processing table 1 is fixedly connected with a light rod 20 that movably passes through the lifting frame 122. The lifting frame 122 slides on the light rod 20, so that the movement path of the lifting frame 122 can be balanced.

[0048] Combined with reference Figure 7 The lifting mechanism 14 includes a fixed frame 141 fixedly connected to the lifting frame 122 and a telescopic device 142 fixedly connected to the fixed frame 141. The telescopic devices of the present application all use telescopic motors.

[0049] The rolling support member 13 includes a rotating frame 131 fixedly connected to the lifting frame 122 and a pair of rollers 132 rotatably connected to the rotating frame 131 .

[0050] There are two pairs of limiting rollers 16 , which are distributed on both sides of the air injection pipe 15 . The limiting rollers 16 are used to limit the rolling of the galvanized pipe. A rotating device 17 is provided on one of the limiting rollers 16 . The limiting rollers 16 drive the galvanized pipe to rotate through the rotation device 17 .

[0051] The limiting rolling element 16 includes a support frame 161 fixedly connected to the outer surface of the air injection pipe 15 and a second roller 162 rotatably connected to the support frame 161. The rotating device 17 is fixedly connected to the support frame 161, and the output end of the rotating device 17 is coaxially fixedly connected to the second roller 162. The rotating device 17 adopts a rotating motor.

[0052] A reinforcing plate 23 is fixedly connected to the top of the jet pipe 15, and the reinforcing plate 23 can improve the structural strength of the jet pipe 15 to ensure the reliability of the jet pipe 15 driving the roller 2 162 to roll on the galvanized pipe. The output end of the telescopic device 2 142 is fixedly connected to the reinforcing plate 23. A spring tube 24 is fixedly connected to the jet pipe 15 and the three-way pipe 91. The spring tube 24 can connect the three-way pipe 91 close to the one-way valve to the jet pipe 15, so that the heat source gas can be blown away from the passivation liquid outside the galvanized pipe through the jet pipe 15.

[0053] Specifically, the galvanized pipe can be placed between two adjacent rollers 132. When processing galvanized pipes of different diameters, the height of the galvanized pipe on the roller 132 can be adjusted by the telescopic device 121, so that the galvanized pipe corresponds to the center of the conical sleeve 5. Then, the telescopic device 142 can be used to drive the roller 162 to roll on the galvanized pipe. At this time, the air nozzle 151 on the air injection pipe 15 is facing the top position of the galvanized pipe to start the rotating device 17. The galvanized pipe is driven on the roller 162 by the roller 162. 132 and the other roller 2 162 rotate. When the external air pump equipment inputs the pressurized gas, the pressurized gas can push the liquid removal part to move after the thermal processing and continue the drying in the pipe, and the branched pressurized heat source gas can be sprayed through the jet nozzle 151 on the jet pipe 15, and cooperate with the rotating galvanized pipe, so that the passivation liquid outside the galvanized pipe can be accelerated to fall into the collection tank 2 for collection, and at the same time, the dryness of the outer wall of the pipe is guaranteed, so that the efficiency of removing the passivation liquid of the galvanized pipe can be effectively improved, and the production efficiency of the subsequent galvanized pipe is also improved.

Claims

1. A device for removing passivation liquid inside and outside a galvanized pipe, comprising a processing table (1), the processing table (1) being provided with a collecting tank (2), the processing table (1) being provided with a pair of linear modules (3), and a moving frame (4) being provided at the sliding part of each linear module (3), the other side of the moving frame (4) being rotatably connected with a hollow rotating shaft (42), and each hollow rotating shaft (42) being provided with a plugging piece for plugging the port of the galvanized pipe, characterized in that: The blocking member comprises a conical sleeve (5), wherein one end of one of the blocking members is provided with a liquid removal member; The liquid removal component comprises a plug barrel (6) and a pair of wear-resistant scraper rings (61) fixedly connected to the outer surface of the plug barrel (6), the wear-resistant scraper rings (61) are slidably connected in the galvanized pipe, both ends of the plug barrel (6) are fixedly connected to metal blocks (7), and each sealing component is provided with an adsorption component for adsorbing and fixing the metal block (7); Air guide pipes (9), the number of the air guide pipes (9) is two groups, and the air guide pipes (9) are connected to the hollow rotating shaft (42); A lifting mechanism (12), the lifting mechanism (12) being arranged on the processing table (1), the lifting mechanism (12) being provided with a pair of rolling support members (13) for rolling support of the galvanized pipe, the lifting mechanism (12) being provided with a lifting mechanism (14), the lifting mechanism (14) being provided with an air injection pipe (15), the air injection pipe (15) corresponding to a position directly above the rolling support member (13), and the air injection pipe (15) being connected to the air guide pipe member (9); The limiting rolling elements (16) are provided in two pairs and are distributed in pairs on both sides of the air injection pipe (15). The limiting rolling elements (16) are used to limit the rolling of the galvanized pipe. A rotating device (17) is provided on one of the limiting rolling elements (16). The limiting rolling elements (16) drive the galvanized pipe to rotate through the driving of the rotating device (17).

2. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: A plug (18) is provided on one side of the processing table (1), and a drainage groove is provided on the same axis as the plug (18) on one side of the processing table (1), the plug (18) is threadedly connected to one end of the drainage groove, and the drainage groove is connected to the collection groove (2).

3. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: A slide bar (19) is mounted on the processing table (1), and a pair of movable frames (4) are slidably connected to the slide bar (19).

4. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: The blocking member also includes at least three sealing cone pads (51) fixedly connected to the outer surface of the conical sleeve (5), the three sealing cone pads (51) being arranged in decreasing sizes facing the galvanized pipe opening, and the conical sleeve (5) being fixedly connected to the hollow rotating shaft (42).

5. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: The wear-resistant scraper ring (61) arranged on the plug tube (6) is arranged in a mirror image.

6. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: One side of the movable frame (4) is fixedly connected to an assembly frame (41); the air guide pipe (9) comprises a three-way pipe (91) fixedly connected to the assembly frame (41) and a pair of valves (92) arranged on the three-way pipe (91); and a rotating joint (21) is arranged at the opposite end of the three-way pipe (91) and the hollow rotating shaft (42); A heating device (10) is fixedly connected to the movable frame (4); an air inlet of the heating device (10) is provided with an air inlet pipe (11); and an air outlet of the heating device (10) is connected to the three-way pipe (91).

7. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 1, characterized in that: The adsorption member comprises an electromagnet (8) fixedly connected to one end of the conical sleeve (5), the electromagnet (8) being magnetically connected to the metal block (7), and a conductive slip ring (22) for supplying power to the electromagnet (8) is fixedly embedded on the assembly frame (41).

8. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 6, characterized in that: The lifting mechanism (12) comprises a pair of telescopic devices (121) fixedly connected to the processing table (1) and a lifting frame (122) fixedly connected to the output ends of the pair of telescopic devices (121); a polished rod (20) movably passing through the lifting frame (122) is fixedly connected to the processing table (1); The second lifting mechanism (14) comprises a fixing frame (141) fixedly connected to the lifting frame (122) and a second telescopic device (142) fixedly connected to the fixing frame (141).

9. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 8, characterized in that: The rolling support member (13) comprises a rotating frame (131) fixedly connected to the lifting frame (122) and a pair of rollers (132) rotatably connected to the rotating frame (131); The limiting rolling element (16) comprises a support frame (161) fixedly connected to the outer surface of the air injection pipe (15) and a second roller (162) rotatably connected to the support frame (161); the rotating device (17) is fixedly connected to the support frame (161), and the output end of the rotating device (17) is coaxially fixedly connected to the second roller (162).

10. A device for removing passivation liquid inside and outside a galvanized pipe according to claim 8, characterized in that: The bottom of the jet pipe (15) is provided with a jet nozzle (151), the top of the jet pipe (15) is fixedly connected with a reinforcing plate (23), the output end of the second telescopic device (142) is fixedly connected with the reinforcing plate (23), and a spring tube (24) is fixedly connected to the jet pipe (15) and the three-way pipe (91).

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