Environment-friendly welding process for manufacturing electric iron tower

Abstract

The invention relates to the technical field of electric power iron tower welding, in particular to an environment-friendly welding process for electric power iron tower manufacturing, which comprises the following steps: step 1, welding flux pretreatment: welding flux screening, raw material mixing, circulating conveying, heating and drying, and screening and discharging; step 2, welding of the electric power iron tower component: welding flux adsorption, submerged-arc welding and excess material recovery; the submerged-arc welding agent is treated, so that the submerged-arc welding agent has magnetism, then the submerged-arc welding agent is adsorbed to the vertical welding seam of the electric iron tower component in cooperation with the adsorption device, and then the vertical welding seam of the electric iron tower component is welded through the welding device, so that the welding convenience is improved, and the use of large equipment for overturning the electric iron tower component is reduced; therefore, the practicability of the environment-friendly welding process for manufacturing the electric iron tower is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power tower welding, and in particular to an environment-friendly welding process for manufacturing electric power towers. Background Art

[0002] Electric power towers are one of the important infrastructures in the power transmission and distribution network, mainly used to support the transmission and distribution lines. The assembled components of electric power towers need to be welded during the production process. Generally, a production process of Y-shaped angle steel for electric power towers disclosed in a patent with publication number CN116252105A and a large-diameter gantry submerged arc welding production line for manufacturing electric power towers disclosed in a patent with publication number CN114433985A are used to weld the components of electric power towers.

[0003] However, it is found in the use process that the existing welding process is relatively simple, and some components of electric power towers are large in size, making it difficult to flip them, so that many vertical welds are difficult to be welded by submerged arc welding, resulting in poor practicability. Therefore, an environment-friendly welding process for manufacturing electric power towers is urgently needed to improve the above problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an environment-friendly welding process for manufacturing electric power towers. The process treats the submerged arc welding flux to make it magnetic, and then cooperates with an adsorption device to adsorb the submerged arc welding flux on the vertical welds of the electric power tower components. Then, a welding device is used to weld the vertical welds of the electric power tower components, improving the welding convenience and reducing the use of large equipment for flipping the electric power tower components, thereby improving the practicability of the environment-friendly welding process for manufacturing electric power towers.

[0005] An environment-friendly welding process for manufacturing electric power towers of the present invention includes the following steps:

[0006] Step 1: Welding flux pretreatment:

[0007] A1. Welding flux screening: Screen the submerged arc welding flux to remove the powder in the welding flux;

[0008] A2. Raw material mixing: Prepare the magnetic adhesive through a mixing device;

[0009] A3. Circulating transportation: Circulatingly transport the screened submerged arc welding flux through a circulating device, and at the same time spray the magnetic adhesive prepared in A2 onto the surface of the submerged arc welding flux;

[0010] A4. Heating and drying: Dry the magnetic adhesive on the surface of the submerged arc welding flux during the circulation process through hot air to reduce the mutually adhered submerged arc welding flux;

[0011] A5. Screening and discharging: Screen the dried submerged arc welding flux, remove the powder in the submerged arc welding flux again, and load the screened submerged arc welding flux into the welding device;

[0012] Step 2. Welding of power tower components:

[0013] B1. Flux adsorption: Install the adsorption device on the back of the weld, and adsorb the submerged arc welding flux discharged from the welding device onto the weld through the adsorption device;

[0014] B2. Submerged arc welding: Weld the weld through the welding device;

[0015] B3. Residual material recovery: After welding, recover the residual submerged arc welding flux on the weld;

[0016] Through the treatment of the submerged arc welding flux, the submerged arc welding flux is made magnetic, and then combined with the adsorption device, the submerged arc welding flux is adsorbed on the vertical weld of the power tower component. Then, the vertical weld of the power tower component is welded through the welding device, which improves the welding convenience and reduces the use of large equipment for flipping the power tower component, thereby improving the practicality of the environmentally friendly welding process for power tower manufacturing.

[0017] Preferably, the magnetic adhesive is made by mixing silicate, water and magnetic metal powder;.

[0018] Preferably, the ratio of silicate to water is 1 / 4, and the ratio of magnetic metal powder to the mixture of silicate and water is 1 / 10;.

[0019] Preferably, the circulation device includes a drying box, a bracket, an air exchange pipe, a storage bin, a first motor, a first screw conveyor shaft, a first circulation pipe, an intake valve, a second circulation pipe, a discharge valve, a second motor, a second screw conveyor shaft, a vibration motor, and a spraying device. The bracket is installed at the bottom of the drying box. The air exchange pipe and the storage bin are both installed at the top of the drying box, and the interior of the storage bin communicates with the interior of the drying box. Both the bottom of the air exchange pipe and the storage bin are provided with a partition net, and the mesh holes of the partition net on the storage bin are larger than those of the partition net on the air exchange pipe. The first motor is installed on the storage bin. One end of the first screw conveyor shaft is connected to the output shaft of the first motor, and the first screw conveyor shaft is located inside the storage bin. One end of the first circulation pipe is installed at the bottom of the drying box. The intake valve is installed on the side of the first circulation pipe. The other end of the first circulation pipe communicates with the interior of the second circulation pipe. The discharge valve is installed at the bottom of the second circulation pipe, and the top of the second circulation pipe communicates with the interior of the storage bin. The second motor is installed on the top of the second circulation pipe. The top of the second screw conveyor shaft is connected to the output shaft of the second motor, and the bottom end of the second screw conveyor shaft extends into the interior of the second circulation pipe. The vibration motor is installed at the bottom of the storage bin. The spraying device is installed on the side of the drying box. Connect the intake valve to a heat source, discharge the submerged arc welding flux into the storage bin, turn on the first motor to drive the first screw conveyor shaft to rotate, discharge the submerged arc welding flux to the partition net at the bottom of the storage bin, and turn on the vibration motor to vibrate the partition net at the bottom of the storage bin, so that the submerged arc welding flux evenly falls into the drying box. At the same time, the spraying device sprays the magnetic adhesive onto the surface of the submerged arc welding flux, and then spray hot air into the first circulation pipe through the intake valve, so that the hot air enters the drying box to dry the magnetic adhesive on the surface of the falling submerged arc welding flux. Then, the falling submerged arc welding flux is discharged into the second circulation pipe through the guidance of the first circulation pipe. Turn on the second motor to drive the second screw conveyor shaft to rotate, discharge the submerged arc welding flux in the second circulation pipe back into the storage bin, and repeat the above steps multiple times to coat the surface of the submerged arc welding flux with sufficient magnetic adhesive. Then, turn on the discharge valve, and through the reverse operation of the second motor, make the second screw conveyor shaft rotate to discharge the submerged arc welding flux in the second circulation pipe, thereby improving the practicability of the circulation device.

[0020] Preferably, the spraying device includes a pressure increasing cylinder, a piston, a hydraulic cylinder, and an atomizing nozzle. The pressure increasing cylinder is installed at the right part of the drying oven, and the inside of the pressure increasing cylinder is communicated with the inside of the mixing device through a first one-way valve. The piston is slidably installed inside the pressure increasing cylinder. The hydraulic cylinder is fixedly installed on the piston, and one end of the hydraulic cylinder is installed on the side end of the piston. The atomizing nozzle is communicated with the inside of the pressure increasing cylinder through a connecting pipe, and a second one-way valve is arranged on the connecting pipe. By contracting the hydraulic cylinder, the piston slides to the right. At the same time, the first one-way valve opens, and the second one-way valve discharges the magnetic adhesive in the mixing device into the pressure increasing cylinder. Then, by extending the hydraulic cylinder, the piston slides to the left, the first one-way valve closes, and the second one-way valve opens, discharging the adhesive in the pressure increasing cylinder into the atomizing nozzle. Then, the atomizing nozzle atomizes and sprays the adhesive onto the surface of the falling submerged arc welding flux, and the above steps are repeated repeatedly, so that the atomizing nozzle continuously atomizes and sprays the submerged arc welding flux, thereby improving the practicability of the spraying device.

[0021] Preferably, the mixing device includes a mixing tank, a feeding valve, a stirring shaft, a rotating connecting pipe, a third motor, a gear ring, and a gear. The mixing tank is fixedly installed on the drying oven. The feeding valve and the third motor are both installed on the top of the mixing tank. The stirring shaft is rotatably installed on the top of the mixing tank, and the bottom of the stirring shaft extends into the inside of the mixing tank. A drainage passage is arranged inside the stirring shaft, and multiple groups of nozzles are arranged on the stirring shaft. The rotating connecting pipe is installed on the top of the stirring shaft. The gear ring is sleeved on the top of the stirring shaft. The gear is installed on the output shaft of the third motor, and the gear ring is meshed with the gear. The silicate is discharged into the mixing tank through the feeding valve. The rotating connecting pipe is connected to a water source, and water is discharged into the stirring shaft, so that multiple groups of nozzles on the stirring shaft slowly spray the water. At the same time, the third motor is turned on. Through the meshing transmission of the gear and the gear ring, the stirring shaft rotates to mix the silicate and water. Then, the magnetic metal powder is discharged into the mixing tank through the feeding valve, and through the continuous rotation of the stirring shaft, the mixture of silicate and water is mixed with the magnetic metal powder to form a magnetic adhesive, thereby improving the practicability of the mixing device.

[0022] Preferably, the welding device includes a robotic arm, a submerged arc welding torch, a discharging hopper, a conveying pipe, a fourth motor, and a third screw conveyor shaft. The submerged arc welding torch and the discharging hopper are both installed on the robotic arm. The conveying pipe is installed at the bottom of the discharging hopper. The fourth motor is installed on the conveying pipe. One end of the third screw conveyor shaft is installed on the output shaft of the fourth motor, and the other end of the third screw conveyor shaft extends into the interior of the conveying pipe. The processed submerged arc welding flux is discharged into the discharging hopper. The fourth motor is turned on to drive the third screw conveyor shaft to rotate. The position of the conveying pipe is adjusted by the robotic arm. The submerged arc welding flux is discharged onto the vertical weld of the power tower component through the conveying pipe, and the submerged arc welding flux on the vertical weld is limited by the adsorption device. Then, the position of the submerged arc welding torch is adjusted by the robotic arm, and the submerged arc welding torch welds the weld on the power tower component under the submerged arc welding flux, thereby improving the practicability of the welding device.

[0023] Preferably, the recovery device includes a first guide plate, a second guide plate, a recovery box, a recovery pipe, and a smoke exhaust device. The smoke exhaust device is installed at the bottom of the robotic arm. The first guide plate is installed on the robotic arm. The second guide plate is slidably installed on the first guide plate through a spring. The recovery box is installed on the smoke exhaust device, and a discharge door is provided at the bottom of the side end of the recovery box. One end of the recovery pipe is installed on the first guide plate, and the other end of the recovery pipe communicates with the interior of the recovery box. The second guide plate is replaced to make the shape of the second guide plate adapt to the weld position of the power tower component. When the submerged arc welding torch welds the weld, the second guide plate is abutted against the weld position of the power tower component, and the residual submerged arc welding flux after welding is scraped off by the second guide plate. The scraped-off submerged arc welding flux is discharged into the recovery box through the cooperation of the recovery box and the recovery pipe. After welding, the adsorption device stops operating, and the residual submerged arc welding flux drops onto the second guide plate and the first guide plate, and then the dropped submerged arc welding flux is discharged into the recovery box through the recovery pipe, thereby improving the practicability of the recovery device.

[0024] Preferably, the smoke exhaust device includes a filter box, multiple groups of filter plates, an exhaust pump, and a smoke exhaust pipe. The filter box is installed at the bottom of the robotic arm. Multiple groups of filter plates are installed inside the filter box. The exhaust pump is installed at the right end of the filter box. One end of the smoke exhaust pipe is fixedly installed on the robotic arm, and the other end of the smoke exhaust pipe communicates with the interior of the filter box. The exhaust pump is turned on to discharge the air inside the filter box, so that a negative pressure environment is formed inside the filter box. Then, the welding fume is discharged into the filter box through the smoke exhaust pipe, and the particulate matter in the welding fume is adsorbed by multiple groups of filter plates, thereby improving the environmental protection of the smoke exhaust device.

[0025] Preferably, the adsorption device includes a support frame, multiple groups of sliders, multiple groups of telescopic rods, multiple groups of hooks, and an electromagnet. The multiple groups of sliders are all slidably installed on the support frame, and bolts are provided on the multiple groups of sliders. One ends of the multiple groups of telescopic rods are respectively installed on the multiple groups of sliders, the multiple groups of hooks are respectively installed on the other ends of the multiple groups of telescopic rods, and the electromagnet is installed on the support frame; according to the size of the power tower components, slide the multiple groups of sliders, and then rotate the multiple groups of bolts so that the multiple groups of bolts abut against the support frame to limit the multiple groups of sliders respectively. Then, extend or contract the multiple groups of telescopic rods to adjust the positions of the multiple groups of hooks, and then hang the multiple groups of hooks on the power tower components. After that, energize the electromagnet to generate magnetism to adsorb the submerged arc welding flux on the weld, thereby improving the practicability of the adsorption device.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. Through the treatment with the submerged arc welding flux, the submerged arc welding flux is made magnetic, and then in cooperation with the adsorption device, the submerged arc welding flux is adsorbed on the vertical weld of the power tower component, and then the vertical weld of the power tower component is welded by the welding device, improving the welding convenience and the applicability of the submerged arc welding;

[0028] 2. Through the multiple-cycle conveying of the submerged arc welding flux, the spraying device coats enough magnetic adhesive on the surface of the submerged arc welding flux, improving the adsorption stability of the adsorption device for the submerged arc welding flux;

[0029] 3. Through the recovery device, the residual submerged arc welding flux is recovered and the welding fume is treated, improving the environmental protection of the welding. Description of the Drawings

[0030] Figure 1 is a schematic flow chart of the environmental protection welding process for the manufacture of power towers of the present invention;

[0031] Figure 2 is a first axonometric structural diagram of the circulation device and the mixing device of the present invention;

[0032] Figure 3 is a second axonometric structural diagram of the circulation device and the mixing device of the present invention;

[0033] Figure 4 is a front view structural diagram of the circulation device and the mixing device of the present invention;

[0034] Figure 5 is a front view sectional structural diagram of the circulation device and the mixing device of the present invention;

[0035] Figure 6 is the present invention Figure 5 in the enlarged structural diagram of part A;

[0036] Figure 7It is a schematic isometric view of the first axis of the welding device of the present invention;

[0037] Figure 8 It is a schematic isometric view of the second axis of the welding device of the present invention;

[0038] Figure 9 It is a schematic front sectional view of the welding device of the present invention;

[0039] Figure 10 It is the present invention Figure 9 Schematic enlarged view of part B in;

[0040] Figure 11 It is a schematic isometric view of the first axis of the adsorption device of the present invention;

[0041] Figure 12 It is a schematic isometric view of the second axis of the adsorption device of the present invention;

[0042] Figure 13 It is a schematic diagram of the existing welding process of the present invention.

[0043] Reference numerals in the drawings: 1. drying oven; 2. bracket; 3. air exchange pipe; 4. storage bin; 5. first motor; 6. first screw conveyor shaft; 7. first circulation pipe; 8. intake valve; 9. second circulation pipe; 10. discharge valve; 11. second motor; 12. second screw conveyor shaft; 13. vibration motor; 14. partition net; 15. pressure intensifying cylinder; 16. piston; 17. hydraulic cylinder; 18. atomizing nozzle; 19. mixing tank; 20. feed valve; 21. stirring shaft; 22. rotary connecting pipe; 23. third motor; 24. gear ring; 25. gear; 26. robotic arm; 27. submerged arc welding gun; 28. discharge hopper; 29. conveying pipe; 30. fourth motor; 31. third screw conveyor shaft; 32. first guide plate; 33. second guide plate; 34. recovery box; 35. recovery pipe; 36. filter box; 37. filter plate; 38. exhaust pump; 39. exhaust pipe; 40. support frame; 41. slider; 42. telescopic rod; 43. hook; 44. electromagnet. Detailed implementation manners

[0044] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0045] Embodiment 1

[0046] As Figures 1 to 13 shown, an environment-friendly welding process for manufacturing a power transmission tower includes the following steps:

[0047] Step 1. Flux pretreatment:

[0048] A1. Flux Screening: Screen the submerged arc welding flux to remove the powder in the flux;

[0049] A2. Raw Material Mixing: Discharge the silicate into the mixing tank 19 through the feed valve 20, connect the rotary connecting pipe 22 to the water source, and discharge water into the stirring shaft 21, so that multiple groups of spray nozzles on the stirring shaft 21 slowly spray water. At the same time, turn on the third motor 23, and through the meshing transmission of the gear 25 and the gear ring 24, make the stirring shaft 21 rotate to mix the silicate and water. Then, discharge the magnetic metal powder into the mixing tank 19 through the feed valve 20, and continuously rotate the stirring shaft 21 to mix the silicate and water mixture with the magnetic metal powder to form a magnetic adhesive;

[0050] A3. Circulating Conveying: Connect the intake valve 8 to the hot gas source, discharge the submerged arc welding flux into the storage tank 4, turn on the first motor 5, drive the first spiral conveyor shaft 6 to rotate, discharge the submerged arc welding to the partition net 14 at the bottom of the storage tank 4, and turn on the vibration motor 13 to vibrate the partition net 14 at the bottom of the storage tank 4, so that the submerged arc welding flux evenly falls into the drying oven 1. At the same time, contract the hydraulic cylinder 17, make the piston 16 slide to the right, and at the same time open the first one-way valve and the second one-way valve, discharge the magnetic adhesive in the mixing device into the pressure boosting cylinder 15. Then, extend the hydraulic cylinder 17, make the piston 16 slide to the left, close the first one-way valve, open the second one-way valve, discharge the adhesive in the pressure boosting cylinder 15 into the atomizing nozzle 18, and then atomize and spray the adhesive onto the surface of the falling submerged arc welding flux through the atomizing nozzle 18, and repeatedly repeat the above steps to continuously atomize and spray the submerged arc welding flux by the atomizing nozzle 18. Then, spray hot gas into the first circulation pipe 7 through the intake valve 8, make the hot gas enter the drying oven 1, dry the magnetic adhesive on the surface of the falling submerged arc welding flux, and then guide the falling submerged arc welding flux into the second circulation pipe 9 through the first circulation pipe 7. Turn on the second motor 11, drive the second spiral conveyor shaft 12 to rotate, discharge the submerged arc welding flux in the second circulation pipe 9 back to the storage tank 4, and repeatedly repeat the above steps to coat enough magnetic adhesive on the surface of the submerged arc welding flux. Then, open the discharge valve 10, and through the reverse operation of the second motor 11, make the second spiral conveyor shaft 12 rotate to discharge the submerged arc welding flux in the second circulation pipe 9;

[0051] A4. Screening and Discharging: Screen the dried submerged arc welding flux, remove the powder in the submerged arc welding flux again, and load the screened submerged arc welding flux into the discharge hopper 28;

[0052] Step 2. Welding of Power Tower Components:

[0053] B1. Flux adsorption: According to the size of the components of the power transmission tower, slide multiple groups of sliders 41, extend or contract multiple groups of telescopic rods 42 to adjust the positions of multiple groups of hooks 43, then hang multiple groups of hooks 43 on the components of the power transmission tower, and then energize the electromagnet 44 to generate magnetism;

[0054] B2. Submerged arc welding: Turn on the fourth motor 30 to drive the third screw conveyor shaft 31 to rotate, adjust the position of the delivery pipe 29 through the robotic arm 26, discharge the submerged arc flux onto the vertical weld of the power transmission tower component through the delivery pipe 29, and limit the submerged arc flux on the vertical weld through the electromagnet 44. Then adjust the position of the submerged arc welding gun 27 through the robotic arm 26 so that the submerged arc welding gun 27 welds the weld on the power transmission tower component under the submerged arc flux.

[0055] Example 2

[0056] As Figures 1 to 13 shown, an environment-friendly welding process for manufacturing a power transmission tower includes the following steps:

[0057] Step 1. Flux pretreatment:

[0058] A1. Flux screening: Screen the submerged arc flux to remove the powder in the flux;

[0059] A2. Raw material mixing: Discharge silicate into the mixing tank 19 through the feed valve 20, connect the rotary connecting pipe 22 to the water source, and discharge water into the stirring shaft 21 so that multiple groups of nozzles on the stirring shaft 21 slowly spray water. At the same time, turn on the third motor 23, and through the meshing transmission of the gear 25 and the gear ring 24, rotate the stirring shaft 21 to mix the silicate and water. Then discharge the magnetic metal powder into the mixing tank 19 through the feed valve 20, and continuously rotate the stirring shaft 21 to mix the silicate and water mixture with the magnetic metal powder to form a magnetic adhesive;

[0060] A3. Circulating transportation: Connect the intake valve 8 to the heat source, discharge the submerged arc welding flux into the storage tank 4, turn on the first motor 5 to drive the first spiral conveyor shaft 6 to rotate, discharge the submerged arc welding flux to the partition net 14 at the bottom of the storage tank 4, and turn on the vibration motor 13 to vibrate the partition net 14 at the bottom of the storage tank 4, so that the submerged arc welding flux evenly falls into the drying oven 1. At the same time, the hydraulic cylinder 17 contracts, the piston 16 slides to the right, the first one-way valve opens, and the second one-way valve discharges the magnetic adhesive in the mixing device into the pressure cylinder 15. Then, the hydraulic cylinder 17 extends, the piston 16 slides to the left, the first one-way valve closes, and the second one-way valve opens, discharging the adhesive in the pressure cylinder 15 into the atomizing nozzle 18. Then, the atomizing nozzle 18 atomizes and sprays the adhesive onto the surface of the falling submerged arc welding flux, and repeatedly repeat the above steps to continuously atomize and spray the submerged arc welding flux by the atomizing nozzle 18. Then, hot air is sprayed into the first circulation pipe 7 through the intake valve 8, so that the hot air enters the drying oven 1 to dry the magnetic adhesive on the surface of the falling submerged arc welding flux. Then, the falling submerged arc welding flux is discharged into the second circulation pipe 9 through the guidance of the first circulation pipe 7. Turn on the second motor 11 to drive the second spiral conveyor shaft 12 to rotate, discharge the submerged arc welding flux in the second circulation pipe 9 back into the storage tank 4, and repeatedly repeat the above steps to coat enough magnetic adhesive on the surface of the submerged arc welding flux. Then, open the discharge valve 10, and the second motor 11 runs in reverse to drive the second spiral conveyor shaft 12 to rotate, discharging the submerged arc welding flux in the second circulation pipe 9;

[0061] A4. Screening and discharging: Screen the dried submerged arc welding flux, remove the powder in the submerged arc welding flux again, and load the screened submerged arc welding flux into the discharge hopper 28;

[0062] Step 2. Welding of power tower components:

[0063] B1. Flux adsorption: According to the size of the power tower components, slide multiple groups of sliders 41, extend or contract multiple groups of telescopic rods 42 to adjust the positions of multiple groups of hooks 43, then hang multiple groups of hooks 43 on the power tower components, and then energize the electromagnet 44 to generate magnetism;

[0064] B2. Submerged arc welding: Turn on the fourth motor 30 to drive the third spiral conveyor shaft 31 to rotate, adjust the position of the conveying pipe 29 through the robotic arm 26, discharge the submerged arc welding flux to the vertical weld of the power tower component through the conveying pipe 29, and limit the submerged arc welding flux on the vertical weld by the electromagnet 44. Then, adjust the position of the submerged arc welding gun 27 through the robotic arm 26 to weld the weld on the power tower component under the submerged arc welding flux;

[0065] B3. Remaining material recycling: Replace the second guide plate 33 so that its shape adapts to the weld position of the power transmission tower component. When the submerged arc welding gun 27 welds the weld, make the second guide plate 33 abut against the weld position of the power transmission tower component, and scrape off the remaining submerged arc flux after welding through the second guide plate 33. The scraped-off submerged arc flux is discharged into the recovery box 34 through the cooperation of the recovery box 34 and the recovery pipe 35. After welding, the electromagnet 44 stops operating, and the remaining submerged arc flux drops onto the second guide plate 33 and the first guide plate 32, and then the dropped submerged arc flux is discharged into the recovery box 34 through the recovery pipe 35. And during the welding process, turn on the exhaust pump 38 to discharge the air in the filter box 36, creating a negative pressure environment inside the filter box 36, and then discharge the welding fume into the filter box 36 through the exhaust pipe 39. The particulate matter in the welding fume is adsorbed by multiple groups of filter plates 37.

[0066] The main functions achieved by the present invention are: improving the welding convenience and the applicability of submerged arc welding, improving the adsorption stability of the adsorption device for the submerged arc flux, and improving the environmental protection of welding;

[0067] 1. Improving the welding convenience and the applicability of submerged arc welding: Through the treatment of the submerged arc flux, make the submerged arc flux magnetic, and then cooperate with the adsorption device to adsorb the submerged arc flux on the vertical weld of the power transmission tower component, and then weld the vertical weld of the power transmission tower component through the welding device, improving the welding convenience and the applicability of submerged arc welding;

[0068] 2. Improving the adsorption stability of the adsorption device for the submerged arc flux: Through the multiple-cycle transportation of the submerged arc flux, make the spraying device coat enough magnetic adhesive on the surface of the submerged arc flux, improving the adsorption stability of the adsorption device for the submerged arc flux;

[0069] 3. Improving the environmental protection of welding: Through the recovery device to recover the remaining submerged arc flux and treat the welding fume, improving the environmental protection of welding.

[0070] For an environment-friendly welding process for manufacturing power transmission towers of the present invention, its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; The multiple groups of hooks 43 can be replaced with clamps according to actual use conditions; The first motor 5, the second motor 11, the vibration motor 13, the hydraulic cylinder 17, the atomizing nozzle 18, the third motor 23, the robotic arm 26, the submerged arc welding gun 27, the fourth motor 30, the exhaust pump 38 and the electromagnet 44 of an environment-friendly welding process for manufacturing power transmission towers of the present invention are purchased on the market, and technicians in this industry only need to install and operate according to the attached operation manuals, without the need for technicians in this field to perform creative labor.

[0071] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An environmentally friendly welding process for manufacturing power transmission towers, characterized in that, It includes the following steps: Step 1, flux pretreatment: A1. Flux screening: Screen the submerged arc welding flux to remove the powder in the flux; A2. Raw material mixing: Prepare the magnetic adhesive through a mixing device; A3. Circulating transportation: Circulatingly transport the screened submerged arc welding flux through a circulating device, and at the same time spray the magnetic adhesive prepared in A2 onto the surface of the submerged arc welding flux; A4. Heating and drying: Dry the magnetic adhesive on the surface of the submerged arc welding flux during the circulation process through hot air to reduce the mutually adhering submerged arc welding flux; A5. Screening and discharging: Screen the dried submerged arc welding flux, remove the powder in the submerged arc welding flux again, and load the screened submerged arc welding flux into the welding device; Step 2, welding of power tower components: B1. Flux adsorption: Install the adsorption device on the back of the weld, and adsorb the submerged arc welding flux discharged from the welding device onto the weld through the adsorption device; B2. Submerged arc welding: Weld the weld through the welding device; B3. Remaining material recovery: After welding, recover the remaining submerged arc welding flux on the weld.

2. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 1, characterized in that, The magnetic adhesive is made by mixing silicate, water and magnetic metal powder.

3. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 2, wherein, The ratio of the silicate to water is 1 / 4, and the ratio of the magnetic metal powder to the mixture of silicate and water is 1 / 10.

4. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 1, characterized in that, The circulating device includes a drying oven (1), a bracket (2), an air exchange pipe (3), a storage tank (4), a first motor (5), a first screw conveyor shaft (6), a first circulation pipe (7), an intake valve (8), a second circulation pipe (9), a discharge valve (10), a second motor (11), a second screw conveyor shaft (12), a vibration motor (13) and a spraying device. The bracket (2) is installed at the bottom of the drying oven (1). The air exchange pipe (3) and the storage tank (4) are both installed at the top of the drying oven (1), and the inside of the storage tank (4) is communicated with the inside of the drying oven (1). Partition meshes (14) are provided at the bottoms of the air exchange pipe (3) and the storage tank (4), and the mesh holes of the partition mesh (14) on the storage tank (4) are larger than those of the partition mesh (14) on the air exchange pipe (3). The first motor (5) is installed on the storage tank (4). One end of the first screw conveyor shaft (6) is connected to the output shaft of the first motor (5), and the first screw conveyor shaft (6) is located inside the storage tank (4). One end of the first circulation pipe (7) is installed at the bottom of the drying oven (1). The intake valve (8) is installed on the side of the first circulation pipe (7). The other end of the first circulation pipe (7) is communicated with the inside of the second circulation pipe (9). The discharge valve (10) is installed at the bottom of the second circulation pipe (9), and the top of the second circulation pipe (9) is communicated with the inside of the storage tank (4). The second motor (11) is installed on the top of the second circulation pipe (9). The top of the second screw conveyor shaft (12) is connected to the output shaft of the second motor (11), and the bottom end of the second screw conveyor shaft (12) extends into the inside of the second circulation pipe (9). The vibration motor (13) is installed at the bottom of the storage tank (4), and the spraying device is installed on the side of the drying oven (1).

5. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 4, wherein, The spraying device includes a pressure increasing cylinder (15), a piston (16), a hydraulic cylinder (17) and an atomizing nozzle (18). The pressure increasing cylinder (15) is installed on the right part of the drying oven (1), and the inside of the pressure increasing cylinder (15) is communicated with the inside of the mixing device through a first one-way valve. The piston (16) is slidably installed inside the pressure increasing cylinder (15). The hydraulic cylinder (17) is fixedly installed on the piston (16), and one end of the hydraulic cylinder (17) is installed on the side end of the piston (16). The atomizing nozzle (18) is communicated with the inside of the pressure increasing cylinder (15) through a connecting pipe, and a second one-way valve is arranged on the connecting pipe.

6. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 4, characterized in that, The mixing device includes a mixing tank (19), a feeding valve (20), a stirring shaft (21), a rotary connecting pipe (22), a third motor (23), a gear ring (24) and a gear (25). The mixing tank (19) is fixedly installed on the drying oven (1). Both the feeding valve (20) and the third motor (23) are installed on the top of the mixing tank (19). The stirring shaft (21) is rotatably installed on the top of the mixing tank (19). The bottom of the stirring shaft (21) extends into the inside of the mixing tank (19), and a drainage passage is arranged inside the stirring shaft (21). Multiple groups of nozzles are arranged on the stirring shaft (21). The rotary connecting pipe (22) is installed on the top of the stirring shaft (21). The gear ring (24) is sleeved on the top of the stirring shaft (21). The gear (25) is installed on the output shaft of the third motor (23), and the gear ring (24) is meshed with the gear (25).

7. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 1, characterized in that, The welding device includes a robotic arm (26), a submerged arc welding gun (27), a discharging hopper (28), a conveying pipe (29), a fourth motor (30) and a third spiral conveying shaft (31). The submerged arc welding gun (27) and the discharging hopper (28) are both installed on the robotic arm (26). The conveying pipe (29) is installed at the bottom of the discharging hopper (28). The fourth motor (30) is installed on the conveying pipe (29). One end of the third spiral conveying shaft (31) is installed on the output shaft of the fourth motor (30), and the other end of the third spiral conveying shaft (31) extends into the inside of the conveying pipe (29).

8. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 7, characterized in that, The recycling device includes a first guiding plate (32), a second guiding plate (33), a recycling box (34), a recycling pipe (35) and a smoke exhausting device. The smoke exhausting device is installed at the bottom of the robotic arm (26). The first guiding plate (32) is installed on the robotic arm (26). The second guiding plate (33) is slidably installed on the first guiding plate (32) through a spring. The recycling box (34) is installed on the smoke exhausting device, and a discharging door is arranged at the bottom of the side end of the recycling box (34). One end of the recycling pipe (35) is installed on the first guiding plate (32), and the other end of the recycling pipe (35) is communicated with the inside of the recycling box (34).

9. The environmentally friendly welding process for manufacturing a power transmission tower according to claim 8, wherein The smoke exhaust device includes a filter box (36), multiple groups of filter plates (37), an exhaust pump (38) and a smoke exhaust pipe (39). The filter box (36) is installed at the bottom of the robotic arm (26). Multiple groups of filter plates (37) are all installed inside the filter box (36). The exhaust pump (38) is installed at the right end of the filter box (36). One end of the smoke exhaust pipe (39) is fixedly installed on the robotic arm (26), and the other end of the smoke exhaust pipe (39) communicates with the inside of the filter box (36).

10. An environmentally friendly welding process for manufacturing a power transmission tower according to claim 1, characterized in that, The adsorption device includes a support frame (40), multiple groups of sliders (41), multiple groups of telescopic rods (42), multiple groups of hooks (43) and an electromagnet (44). Multiple groups of sliders (41) are all slidably installed on the support frame (40), and bolts are provided on multiple groups of sliders (41). One ends of multiple groups of telescopic rods (42) are respectively installed on multiple groups of sliders (41), and multiple groups of hooks (43) are respectively installed on the other ends of multiple groups of telescopic rods (42). The electromagnet (44) is installed on the support frame (40).

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