Tank welding fume purification and recovery system

Abstract

The invention provides a tank welding fume purification and recovery system, and relates to the field of tank welding fume treatment.The tank welding fume purification and recovery system comprises a workbench, two sets of symmetrical butt joint mechanisms are arranged above the workbench, each set comprises two butt joint mechanisms, and each butt joint mechanism comprises a power assembly and a linkage assembly; each power assembly comprises a bearing plate, the two bearing plates located on the lower portion are each fixedly provided with two second supporting frames, and each second supporting frame is fixedly connected to the upper surface of the workbench. According to the tank welding fume purification and recovery system, large particles can be prevented from blocking filter holes of the filter cartridge in a sweeping and vibration mode, so that the problem that the welding fume purification effect is weakened due to the fact that the trafficability of the filter cartridge is reduced by the attached large particles is effectively solved, and meanwhile, the welding fume purification effect is improved by a mode of fixing a rotary welding point position of the tank cartridge. The problem that the suction cover of the purifier is moved many times is avoided, and operation is convenient.

Description

Technical Field

[0001] The invention relates to a tank welding fume purification and recovery system, in particular to a tank welding fume purification and recovery system, belonging to the technical field of tank welding fume treatment. Background Art

[0002] In order to facilitate the transportation of liquid goods, a transport vehicle with a tank body is generally used for transportation. During the production process of the vehicle-mounted tank body, multiple divided cylinders are generally assembled and welded one by one at the joints to form a complete tank body. In the process of welding the tank body, in order to prevent the welding smoke generated during welding from polluting the surrounding environment, it is generally necessary to purify and recycle the welding smoke through a smoke purifier.

[0003] At present, when purifying and recovering smoke during tank welding, the suction hood of the purifier is generally attached to the welding position, and the purifier purifies and recovers the smoke generated during the welding. However, due to the huge size of the tank, the tank welding process generally uses a manually controlled welding gun to weld the joint of the tank barrel, so that the workers need to move the suction hood of the purifier after changing the welding area, which is inconvenient to operate and makes the welding work more cumbersome and complicated.

[0004] On the other hand, a patent with the search announcement number CN112076561B discloses a welding fume purification and dust removal device for the inside of a tank body, which can prevent workers from encountering danger while working inside and being unable to call for help. However, it is difficult for the device to automatically clean the solid particles attached to the filter plate. The fume purification and recovery device generally first filters larger solid particles through the filter plate and then absorbs the gas odor through activated carbon to achieve the functions of purification and recovery. However, when the filter plate filters the solid particles in the flue gas, the larger solid particles will be tightly attached to the filter plate due to the negative pressure, which will lead to a decrease in the permeability of the filter plate, and then cause the fume purification and recovery device to weaken the purification effect of welding fume. To this end, we provide a tank welding fume purification and recovery system to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The purpose of the present invention is to provide a tank welding fume purification and recovery system in order to solve the above-mentioned problem, so as to solve the problem that the fume purification and recovery device in the prior art is difficult to automatically clean the solid particles attached to the filter plate.

[0007] (II) Technical solution

[0008] The present invention is implemented through the following technical scheme: a tank welding fume purification and recovery system, including a workbench, two groups of symmetrical docking mechanisms are arranged above the workbench, and the number of docking mechanisms in each group is two, each of the docking mechanisms includes a power component and a linkage component, each of the power components includes a bearing plate, and the two bearing plates located below are fixed with two support frames 2, and each of the support frames 2 is fixedly connected to the upper surface of the workbench.

[0009] A purification and recovery mechanism is also provided above the workbench, and the purification and recovery mechanism includes a support platform fixed on the workbench, a recovery cylinder is fixed above the support platform, a sealing ring is fixed to the inner wall of the recovery cylinder, a filter cylinder is fixed to the inner wall of the sealing ring, and the filter cylinder is located in the recovery cylinder.

[0010] Preferably, a group of electric telescopic rods 1 are arranged above the two upper supporting plates, and the number of each group of electric telescopic rods 1 is two, and the telescopic ends of the two groups of electric telescopic rods 1 are respectively fixed to the two upper supporting plates, and a support frame 1 is fixed to the upper surface of the workbench, and the two support frames 1 are respectively fixed to the two groups of electric telescopic rods 1. Controlling the electric telescopic rod 1 will drive the upper docking mechanism to move as a whole, so that the upper and lower docking mechanisms are separated, making it convenient for the staff to place the cans in the two docking mechanisms.

[0011] Preferably, a sliding tube 1 is fixed on both sides of the supporting plate, a motor 2 is fixed above the supporting plate, a fixed plate is fixed on the upper surface of the supporting plate, a threaded tube 1 and a rotating tube are rotatably connected on the fixed plate, the output end of the motor 2 is transmission connected to the threaded tube 1 through a belt and a pulley, a motor 1 is fixed to the bottom surface of the supporting plate, the output end of the motor 1 is transmission connected to the rotating tube through a belt and a pulley, and controlling the start of the motor 2 will drive the threaded tube 1 to rotate, and the rotation of the threaded tube 1 will drive the moving frame to move through the one-way threaded rod, thereby moving the linkage assembly as a whole.

[0012] Preferably, the linkage assembly includes a moving frame, a one-way threaded rod is fixed on the outer surface of the moving frame, the threaded tube 1 is threadedly connected to the one-way threaded rod, two sliding rods are fixed on the outer surface of the moving frame, the two sliding rods are respectively slidably connected to the two sliding tubes 1, the inner wall of the rotating tube is slidably connected with a sliding rod 1, the sliding rod 1 penetrates the moving frame and is rotatably connected to the moving frame, two sliding strips are fixed on the outer surface of the sliding rod 1, the two sliding strips are slidably connected to the rotating tube, the control motor 1 drives the rotating tube to rotate, the rotation of the rotating tube will drive the sliding rod 1 to rotate through the two sliding strips, and the rotation of the sliding rod 1 will drive the gear to rotate.

[0013] Preferably, the linkage assembly also includes a half-toothed ring, a half-ring bar is fixed on the outer surface of the half-toothed ring, slideways are fixed on both sides of the movable frame, and the two slideways are slidably connected to the half-ring bar, and a gear is fixed at one end of the slide rod that passes through the movable frame, and the gear is meshed with the half-toothed ring. After the upper and lower linkage assemblies are close, the two half-toothed rings will be combined into a complete toothed ring, and the two upper and lower motors will be controlled respectively to make the upper and lower gears have the same rotation speed but opposite directions, so that the rotation of the two gears will drive the complete toothed ring formed by the combination of the two half-toothed rings to rotate, and the rotation of the half-toothed ring will drive the clamping block to rotate, thereby rotating the clamped can barrel.

[0014] Preferably, two symmetrical long plates are fixed on the outer surface of the semi-toothed ring, and sliders are slidably connected to the outer surfaces of the two long plates, and telescopic cylinders are fixed to the outer surfaces of the two slides. A semi-ring slide rail is arranged on the outside of the semi-toothed ring, and the telescopic ends of the two telescopic cylinders are fixed to the semi-ring slide rails, and the two sliders are slidably connected to the semi-ring slide rails. When the semi-ring slide rail moves, it drives the slider to move, so that the slider makes the clamping block on the movable block approach the tank barrel through the connecting rod, and the upper and lower telescopic cylinders are controlled to start synchronously, so that the upper and lower two semi-ring slide rails move synchronously, so that the four clamping blocks approach each other and clamp the tank barrel.

[0015] Preferably, the outer surface of the slider is hinged with a connecting rod via a pin, and the end of the connecting rod away from the slider is hinged with a movable block via a pin, and two limit rods are fixed to the outer surface of the movable block, and the two limit rods both penetrate the long plate and are slidably connected to the long plate, and a clamping block is provided on the outside of the long plate, and one end of the two limit rods is fixed to the clamping block, and when the semi-ring slide rail moves, it drives the slider to move, so that the slider makes the clamping block on the movable block close to the tank barrel through the connecting rod. Since the slider can slide in the semi-ring slide rail, when the two semi-toothed rings are closed to form a complete toothed ring, the two semi-ring slide rails are closed at the same time to form a complete ring track, and the four clamping blocks can move in the ring track formed by the closure of the two semi-ring slide rails.

[0016] Preferably, the outer surface of the recovery cylinder is fixedly connected with a soft pipe, and one end of the soft pipe away from the recovery cylinder is fixedly connected with a suction box, an electric telescopic rod 2 is fixed between the two support frames 1, and the telescopic end of the electric telescopic rod 2 is fixed with a connecting frame, and the connecting frame is fixed to the upper surface of the suction box, and a welding gun is arranged on the outside of the connecting frame, and the welding gun penetrates the outer surface of the suction box and is fixedly connected to the suction box, and an activated carbon filter cartridge is installed on the outer surface of the sealing ring, and an exhaust fan is installed below the activated carbon filter cartridge. The exhaust fan is started to extract the welding fume at the suction box through the activated carbon filter cartridge, the recovery cylinder and the soft pipe, and the fume generated by welding will filter large particles in the fume through the filter cartridge, and the large particles will be blocked on the outer surface of the filter cartridge and the welding fume will be purified by the activated carbon filter cartridge. By setting the electric telescopic rod 2, the lifting and lowering of the suction box can be controlled to adapt to cylinders of different diameters.

[0017] Preferably, a motor three is fixed to the outer surface of the recovery cylinder, a reciprocating threaded rod is fixed to the output end of the motor three, the reciprocating threaded rod passes through the sealing ring and is rotatably connected to the sealing ring, a movable ring is sleeved on the outer surface of the filter cylinder, a threaded tube two is fixed to the movable ring, the threaded tube two is threadedly connected to the reciprocating threaded rod, a cleaning ring brush is fixed to the inner wall of the movable ring, two sliding tubes two are fixed to the movable ring, two sliding rods two are fixed to the bottom surface of the sealing ring, the two sliding rods two are respectively slidably connected to the two sliding tubes two, the motor three is controlled to drive the reciprocating threaded rod to rotate, and because the reciprocating threaded rod has a reciprocating thread, the reciprocating threaded rod drives the threaded tube two to move reciprocatingly up and down, so that the movable ring drives the cleaning ring brush to move up and down to clean the surface of the filter cylinder.

[0018] Preferably, four cleaning mechanisms in a circular array are arranged inside the recovery cylinder, and the cleaning mechanism includes two fixed frames and a limit plate fixed on the movable ring, the inner wall of the limit plate is slidably connected with a vibration column, one end of the vibration column is fixed with a baffle, the outer surface of the vibration column is sleeved with a telescopic spring, and the telescopic spring is fixedly connected between the baffle and the limit plate, and two impact columns are fixed on the outer surface of the baffle, the two impact columns are respectively located inside the two fixed frames, and a plurality of cone blocks are fixed on the inner walls of the two fixed frames. When the movable ring moves, the impact columns will be driven to move up and down, so that the baffle is squeezed by the cone blocks for many times and reset by the elastic force of the telescopic springs, so that the four vibration columns knock and vibrate the surface of the filter cylinder, so that large particles adsorbed by negative pressure on the filter cylinder are swept off, and the large particles are prevented from clogging the filter holes of the filter cylinder by vibration, thereby effectively preventing the problem of weakened welding fume purification effect due to reduced passability of the filter cylinder caused by attached large particles.

[0019] The present invention provides a tank welding fume purification and recovery system, which has the following beneficial effects:

[0020] 1. The present invention is provided with a purification and recovery mechanism. When filtering large particles in welding fume, the large particles will be blocked on the outer surface of the filter cartridge, so that the movable ring drives the cleaning ring brush to move up and down to clean the surface of the filter cartridge. When the movable ring moves, it will drive the impact column to move up and down, so that the baffle is squeezed by the cone block for many times and reset by the elastic force of the telescopic spring, so that the four vibration columns knock and vibrate the surface of the filter cartridge, so that the large particles adsorbed by the negative pressure on the filter cartridge are cleaned and dropped, and the large particles are prevented from clogging the filter holes of the filter cartridge by vibration, thereby effectively preventing the problem of weakening the welding fume purification effect due to the reduced permeability of the filter cartridge caused by the attached large particles.

[0021] 2. The present invention is provided with a power component and a linkage component. When welding the tank body to remove smoke and dust, the two tank barrels are respectively placed in two groups of docking mechanisms. The four clamping blocks in each group of docking mechanisms can clamp tank bodies of different diameters, thereby increasing the practicality of the device. Then, the two groups of docking mechanisms are controlled to approach each other so that the welding points of the two tank barrels are docked. The docking process is convenient and quick. When welding, the two clamped tank barrels are controlled to rotate synchronously so that the welding gun continuously welds the docking points of the tank barrels. The suction box recovers the smoke and dust generated during welding. By fixing the rotating welding points of the tank barrels, the problem of repeatedly moving the suction hood of the purifier is avoided, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention when recovering smoke;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention when loading materials;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a docking mechanism of the present invention;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the docking mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of the split structure of the docking mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the split structure of the linkage assembly of the present invention;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the linkage component part of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the purification and recovery mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure inside the recovery cylinder of the present invention;

[0031] Fig.10 It is a three-dimensional structural schematic diagram of the filter cartridge of the present invention;

[0032] Fig.11 It is a schematic diagram of the separate structure of the cleaning mechanism and the purification recovery mechanism of the present invention;

[0033] Fig.12 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0034]

Main component symbol description

[0035] 1. Workbench; 2. Docking mechanism;

[0036] 3. Power assembly; 301. Loading plate; 302. Sliding tube 1; 303. Fixed plate; 304. Motor 1; 305. Rotating tube; 306. Motor 2; 307. Threaded tube 1;

[0037] 4. Linkage assembly; 401. Moving frame; 402. Sliding rod 1; 403. Sliding bar; 404. Gear; 405. Semi-gear ring; 406. Semi-ring bar; 407. Telescopic cylinder; 408. Slideway; 409. Semi-ring slide rail; 410. Sliding rod; 411. One-way threaded rod; 412. Long board; 413. Sliding block; 414. Connecting rod; 415. Movable block; 416. Limiting rod; 417. Clamping block;

[0038] 5. Support frame 1; 6. Electric telescopic rod 1; 7. Support frame 2;

[0039] 8. Purification and recovery mechanism; 801. Recovery cylinder; 802. Support platform; 803. Exhaust fan; 804. Activated carbon filter cartridge; 805. Soft pipe; 806. Suction box; 807. Electric telescopic rod 2; 808. Connecting frame; 809. Welding gun; 810. Filter cartridge; 811. Sealing ring; 812. Motor 3; 813. Reciprocating threaded rod; 814. Threaded pipe 2; 815. Movable ring; 816. Sliding pipe 2; 817. Sliding rod 2; 818. Cleaning ring brush;

[0040] 9. Cleaning mechanism; 901. Limiting plate; 902. Vibrating column; 903. Baffle; 904. Impact column; 905. Telescopic spring; 906. Fixed frame; 907. Cone block. DETAILED DESCRIPTION

[0041] An embodiment of the present invention provides a tank welding fume purification and recovery system.

[0042] See also Figure 1 , Figure 2 and Figure 3, including a workbench 1, two groups of symmetrical docking mechanisms 2 are arranged above the workbench 1, and the number of docking mechanisms 2 in each group is two, each docking mechanism 2 includes a power component 3 and a linkage component 4, each power component 3 includes a bearing plate 301, and the two bearing plates 301 located below are fixed with two support frames 7, and each support frame 7 is fixedly connected to the upper surface of the workbench 1.

[0043] A purification and recovery mechanism 8 is also provided above the workbench 1, and the purification and recovery mechanism 8 includes a support platform 802 fixed on the workbench 1, a recovery cylinder 801 is fixed above the support platform 802, a sealing ring 811 is fixed to the inner wall of the recovery cylinder 801, a filter cylinder 810 is fixed to the inner wall of the sealing ring 811, and the filter cylinder 810 is located in the recovery cylinder 801.

[0044] See also Figure 4 and Figure 5 A set of electric telescopic rods 6 is arranged above the two upper supporting plates 301, and the number of each set of electric telescopic rods 6 is two. The telescopic ends of the two sets of electric telescopic rods 6 are respectively fixed to the two upper supporting plates 301. A support frame 5 is fixed to the upper surface of the workbench 1. The two support frames 5 are respectively fixed to the two sets of electric telescopic rods 6. Controlling the electric telescopic rod 6 will drive the upper docking mechanism 2 to move as a whole, so that the upper and lower docking mechanisms 2 are separated, which is convenient for the staff to place the can barrel in the two docking mechanisms 2.

[0045] Sliding tubes 1 302 are fixed on both sides of the supporting plate 301, a motor 2 306 is fixed on the top of the supporting plate 301, a fixed plate 303 is fixed on the upper surface of the supporting plate 301, a threaded tube 1 307 and a rotating tube 305 are rotatably connected to the fixed plate 303, an output end of the motor 2 306 is connected to the threaded tube 1 307 through a belt and a pulley, a motor 1 304 is fixed on the bottom surface of the supporting plate 301, an output end of the motor 1 304 is connected to the rotating tube 305 through a belt and a pulley, controlling the motor 2 306 to start will drive the threaded tube 1 307 to rotate, and the rotation of the threaded tube 1 307 will drive the moving frame 401 to move through the unidirectional threaded rod 411, thereby moving the linkage assembly 4 as a whole.

[0046] See also Figure 6 and Figure 7The linkage assembly 4 includes a moving frame 401, a one-way threaded rod 411 is fixed to the outer surface of the moving frame 401, and the threaded tube 307 is threadedly connected to the one-way threaded rod 411. Two sliding rods 410 are fixed to the outer surface of the moving frame 401. The two sliding rods 410 are respectively slidably connected to the two sliding tubes 302. The inner wall of the rotating tube 305 is slidably connected to the sliding rod 402. The sliding rod 402 penetrates the moving frame 401 and is rotatably connected to the moving frame 401. Two sliding bars 403 are fixed to the outer surface of the sliding bar 402. The two sliding bars 403 are both slidably connected to the rotating tube 305. The control motor 304 drives the rotating tube 305 to rotate. The rotation of the rotating tube 305 will drive the sliding bar 402 to rotate through the two sliding bars 403. The rotation of the sliding bar 402 will drive the gear 404 to rotate.

[0047] The linkage assembly 4 also includes a semi-toothed ring 405, a semi-ring strip 406 is fixed on the outer surface of the semi-toothed ring 405, slideways 408 are fixed on both sides of the mobile frame 401, and the two slideways 408 are slidably connected to the semi-ring strip 406. A slide rod 402 passes through one end of the mobile frame 401 and is fixed with a gear 404, and the gear 404 is meshed with the semi-toothed ring 405. After the upper and lower linkage assemblies 4 are close, the two semi-toothed rings 405 will be combined into a complete toothed ring, and the upper and lower two motors 304 are controlled respectively to make the upper and lower gears 404 rotate at the same speed but in opposite directions, so that the rotation of the two gears 404 will drive the complete toothed ring formed by the combination of the two semi-toothed rings 405 to rotate, and the rotation of the semi-toothed ring 405 will drive the clamping block 417 to rotate, thereby rotating the clamped can barrel.

[0048] Two symmetrical long plates 412 are fixed to the outer surface of the semi-toothed ring 405, and sliders 413 are slidably connected to the outer surfaces of the two long plates 412. Telescopic cylinders 407 are fixed to the outer surfaces of the two slideways 408. Semi-ring slide rails 409 are arranged on the outside of the semi-toothed ring 405, and the telescopic ends of the two telescopic cylinders 407 are fixed to the semi-ring slide rails 409. The two sliders 413 are slidably connected to the semi-ring slide rails 409. When the semi-ring slide rails 409 move, the sliders 413 are driven to move, so that the sliders 413 make the clamping blocks 417 on the movable blocks 415 approach the can barrel through the connecting rods 414, and the telescopic cylinders 407 at the upper and lower parts are controlled to start synchronously, so that the two semi-ring slide rails 409 at the upper and lower parts move synchronously, so that the four clamping blocks 417 approach each other and clamp the can barrel.

[0049] The outer surface of the slider 413 is hinged with a connecting rod 414 through a pin shaft, and the end of the connecting rod 414 away from the slider 413 is hinged with a movable block 415 through a pin shaft. Two limiting rods 416 are fixed to the outer surface of the movable block 415, and the two limiting rods 416 both penetrate the long plate 412 and are slidably connected to the long plate 412. A clamping block 417 is arranged on the outside of the long plate 412, and one end of the two limiting rods 416 is fixed to the clamping block 417. When the semi-ring slide rail 409 moves, it drives the slider 413 to move, so that the slider 413 makes the clamping block 417 on the movable block 415 close to the can barrel through the connecting rod 414. Since the slider 413 can slide in the semi-ring slide rail 409, when the two semi-toothed rings 405 are closed to form a complete toothed ring, the two semi-ring slide rails 409 are closed at the same time to form a complete ring track, and the four clamping blocks 417 can move in the ring track formed by the closure of the two semi-ring slide rails 409.

[0050] See also Figure 8 and Fig. 9 The outer surface of the recovery cylinder 801 is fixedly connected with a soft tube 805, and one end of the soft tube 805 away from the recovery cylinder 801 is fixedly connected with a suction box 806. An electric telescopic rod 807 is fixed between the two support frames 5, and a connecting frame 808 is fixed to the telescopic end of the electric telescopic rod 807. The connecting frame 808 is fixed to the upper surface of the suction box 806. A welding gun 809 is arranged on the outside of the connecting frame 808. The welding gun 809 penetrates the outer surface of the suction box 806 and is fixedly connected to the suction box 806. The outer surface of the sealing ring 811 is provided with an active The activated carbon filter cartridge 804 is provided with an exhaust fan 803 below the activated carbon filter cartridge 804. When the exhaust fan 803 is started, the exhaust fan 803 extracts welding fume from the suction box 806 through the activated carbon filter cartridge 804, the recovery cartridge 801 and the soft tube 805. The fume generated by welding will be filtered through the filter cartridge 810 to filter large particles in the fume. The large particles will be blocked on the outer surface of the filter cartridge 810 and the welding fume will be purified by the activated carbon filter cartridge 804. The electric telescopic rod 807 is used to control the lifting and lowering of the suction box 806 to adapt to cylinders of different diameters.

[0051] See also Fig.10The outer surface of the recovery cylinder 801 is fixed with a motor 3 812, and the output end of the motor 3 812 is fixed with a reciprocating threaded rod 813, and the reciprocating threaded rod 813 penetrates the sealing ring 811 and is rotatably connected with the sealing ring 811. The outer surface of the filter cylinder 810 is sleeved with a movable ring 815, and the movable ring 815 is fixed with a threaded pipe 2 814, and the threaded pipe 2 814 is threadedly connected with the reciprocating threaded rod 813. The inner wall of the movable ring 815 is fixed with a cleaning ring brush 818, and the movable ring 81 5, two sliding tubes 816 are fixed on the bottom surface of the sealing ring 811, and two sliding rods 817 are fixed on the bottom surface of the sealing ring 811. The two sliding rods 817 are respectively connected with the two sliding tubes 816 in a sliding manner. The control motor 812 drives the reciprocating threaded rod 813 to rotate. Since the reciprocating threaded rod 813 has a reciprocating thread, the reciprocating threaded rod 813 drives the threaded tube 814 to move up and down reciprocatingly, so that the movable ring 815 drives the cleaning ring brush 818 to move up and down to clean the surface of the filter cartridge 810.

[0052] See also Fig.11 and Fig.12 Four cleaning mechanisms 9 in a circular array are arranged inside the recovery cylinder 801. The cleaning mechanism 9 includes two fixed frames 906 and a limit plate 901 fixed on the movable ring 815. The inner wall of the limit plate 901 is slidably connected with a vibration column 902. A baffle 903 is fixed at one end of the vibration column 902. A telescopic spring 905 is sleeved on the outer surface of the vibration column 902. The telescopic spring 905 is fixedly connected between the baffle 903 and the limit plate 901. Two impact columns 904 are fixed on the outer surface of the baffle 903. The two impact columns 904 are respectively located inside the two fixed frames 906. The inner walls of the two fixed frames 906 are fixed with Multiple cone blocks 907 and the movable ring 815 drive the cleaning ring brush 818 to move up and down to clean the surface of the filter cartridge 810. When the movable ring 815 moves, it will drive the impact column 904 to move up and down, so that the baffle 903 is squeezed by the cone blocks 907 for many times and is reset by the elastic force of the telescopic spring 905, so that the four vibration columns 902 knock and vibrate the surface of the filter cartridge 810, so that large particles adsorbed by negative pressure on the filter cartridge 810 are cleaned and fall off, and the large particles are prevented from clogging the filter holes of the filter cartridge 810 by vibration, thereby effectively preventing the problem of weakened welding smoke purification effect due to reduced permeability of the filter cartridge 810 caused by the attached large particles.

[0053] Working principle: When welding and removing smoke from the tank body, the two tank barrels are placed in the two groups of docking mechanisms 2 respectively, and the electric telescopic rod 16 is controlled to move the upper docking mechanism 2 downward, so that the upper and lower half toothed rings 405 are closed into a complete toothed ring, and then the telescopic cylinder 407 is controlled to drive the half-ring slide rail 409 to move, so that the half-ring slide rail 409 drives the slider 413 to move, and the slider 413 moves and drives the movable block 415 to approach the tank barrel through the connecting rod 414, so that the four clamping blocks 417 synchronously approach the tank barrel and clamp the tank barrel, and the motor 2 306 in the two groups of docking mechanisms 2 is controlled to start, so that the threaded tube 1 307 rotates and drives the movable frame 401 to move through the one-way threaded rod 411, so that the two clamped tanks The barrels are close to each other and docked together, and the electric telescopic rod 2 807 is controlled to drive the suction box 806 to fit the docking position of the two barrels. At this time, the welding gun 809 in the suction box 806 will be aimed at the docking position of the two barrels for welding, and then the motor 1 304 in the two groups of docking mechanisms 2 is controlled to start, and the motor 1 304 will drive the rotating tube 305 to rotate. The rotating tube 305 rotates through the two slide bars 403 to drive the slide bar 1 402 to rotate, and the slide bar 1 402 drives the gear 404 to rotate to rotate the two closed semi-toothed rings 405. The rotation of the semi-toothed ring 405 will drive the clamping block 417 thereon to rotate, so that the two clamped barrels rotate synchronously, so that the welding gun 809 continues to weld the docking position of the two barrels.

[0054] Start the exhaust fan 803 to extract the welding fume from the suction box 806 through the activated carbon filter cartridge 804, the recovery cartridge 801 and the soft tube 805. The fume generated by welding will pass through the filter cartridge 810 to filter large particles in the fume. The large particles will be blocked on the outer surface of the filter cartridge 810 and the welding fume will be purified by the activated carbon filter cartridge 804. The motor 3 812 is controlled to drive the reciprocating threaded rod 813 to rotate, so that the movable ring 815 drives the cleaning ring brush 818 to move up and down to clean the surface of the filter cartridge 810. Cleaning, while the movable ring 815 moves, it will drive the impact column 904 to move up and down, so that the baffle 903 is squeezed by the cone block 907 for many times and reset by the elastic force of the telescopic spring 905, so that the four vibration columns 902 knock and vibrate the surface of the filter cartridge 810, so that the large particles adsorbed by the negative pressure on the filter cartridge 810 are cleaned and fall off, and the large particles are prevented from clogging the filter holes of the filter cartridge 810 by vibration, thereby effectively preventing the problem of weakening the welding smoke purification effect due to the reduced permeability of the filter cartridge 810 caused by the attached large particles.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tank welding fume purification and recovery system, comprising a workbench (1), characterized in that: Two groups of symmetrical docking mechanisms (2) are arranged above the workbench (1), and the number of each group of docking mechanisms (2) is two, each of the docking mechanisms (2) comprises a power assembly (3) and a linkage assembly (4), each of the power assemblies (3) comprises a bearing plate (301), and the two bearing plates (301) located below are each fixed with two supporting frames (7), and each of the supporting frames (7) is fixedly connected to the upper surface of the workbench (1); A purification and recovery mechanism (8) is also provided above the workbench (1), and the purification and recovery mechanism (8) comprises a support platform (802) fixed on the workbench (1), a recovery cylinder (801) is fixed above the support platform (802), a sealing ring (811) is fixed to the inner wall of the recovery cylinder (801), a filter cylinder (810) is fixed to the inner wall of the sealing ring (811), and the filter cylinder (810) is located in the recovery cylinder (801).

2. A tank welding fume purification and recovery system according to claim 1, characterized in that: A group of electric telescopic rods (6) is arranged above the two upper supporting plates (301), and each group of electric telescopic rods (6) has two members, and the telescopic ends of the two groups of electric telescopic rods (6) are respectively fixed to the two upper supporting plates (301), and a support frame (5) is fixed to the upper surface of the workbench (1), and the two support frames (5) are respectively fixed to the two groups of electric telescopic rods (6).

3. A tank welding fume purification and recovery system according to claim 1, characterized in that: Sliding tubes 1 (302) are fixed on both sides of the bearing plate (301), motor 2 (306) is fixed on the top of the bearing plate (301), a fixing plate (303) is fixed on the upper surface of the bearing plate (301), threaded tube 1 (307) and a rotating tube (305) are rotatably connected on the fixing plate (303), the output end of motor 2 (306) is connected to threaded tube 1 (307) through a belt and a pulley, and motor 1 (304) is fixed on the bottom surface of the bearing plate (301), and the output end of motor 1 (304) is connected to the rotating tube (305) through a belt and a pulley.

4. A tank welding fume purification and recovery system according to claim 3, characterized in that: The linkage assembly (4) comprises a movable frame (401), a one-way threaded rod (411) being fixed on the outer surface of the movable frame (401), the threaded tube (307) being threadedly connected to the one-way threaded rod (411), two sliding rods (410) being fixed on the outer surface of the movable frame (401), the two sliding rods (410) being slidably connected to the two sliding tubes (302) respectively, the inner wall of the rotating tube (305) being slidably connected to the sliding rod (402), the sliding rod (402) passing through the movable frame (401) and being rotatably connected to the movable frame (401), and two sliding bars (403) being fixed on the outer surface of the sliding bar (402), both of which are slidably connected to the rotating tube (305).

5. A tank welding fume purification and recovery system according to claim 4, characterized in that: The linkage assembly (4) further comprises a semi-toothed ring (405), a semi-ring strip (406) being fixed on the outer surface of the semi-toothed ring (405), slideways (408) being fixed on both sides of the movable frame (401), both slideways (408) being slidably connected to the semi-ring strip (406), and a gear (404) being fixed on one end of the slide bar (402) penetrating the movable frame (401), and the gear (404) being meshed with the semi-toothed ring (405).

6. A tank welding fume purification and recovery system according to claim 5, characterized in that: Two symmetrical long plates (412) are fixed on the outer surface of the semi-toothed ring (405), and the outer surfaces of the two long plates (412) are slidably connected with sliders (413). The outer surfaces of the two slideways (408) are fixed with telescopic cylinders (407). A semi-ring slide rail (409) is arranged outside the semi-toothed ring (405), and the telescopic ends of the two telescopic cylinders (407) are fixed to the semi-ring slide rail (409), and the two sliders (413) are slidably connected to the semi-ring slide rail (409).

7. A tank welding fume purification and recovery system according to claim 6, characterized in that: The outer surface of the slider (413) is hinged with a connecting rod (414) via a pin shaft, and one end of the connecting rod (414) away from the slider (413) is hinged with a movable block (415) via a pin shaft. Two limiting rods (416) are fixed to the outer surface of the movable block (415), and the two limiting rods (416) both penetrate the long plate (412) and are slidably connected to the long plate (412). A clamping block (417) is arranged outside the long plate (412), and one end of the two limiting rods (416) is fixed to the clamping block (417).

8. The tank welding fume purification and recovery system according to claim 2 is characterized by: The outer surface of the recovery tube (801) is fixedly connected to a soft tube (805), and one end of the soft tube (805) away from the recovery tube (801) is fixedly connected to a suction box (806). An electric telescopic rod (807) is fixed between the two support frames (5). The telescopic end of the electric telescopic rod (807) is fixed to a connecting frame (808), and the connecting frame (808) is fixed to the upper surface of the suction box (806). A welding gun (809) is arranged outside the connecting frame (808), and the welding gun (809) passes through the outer surface of the suction box (806) and is fixedly connected to the suction box (806). An activated carbon filter cartridge (804) is installed on the outer surface of the sealing ring (811), and an exhaust fan (803) is installed below the activated carbon filter cartridge (804).

9. The tank welding fume purification and recovery system according to claim 1, characterized in that: A motor three (812) is fixed on the outer surface of the recovery cylinder (801), and a reciprocating threaded rod (813) is fixed to the output end of the motor three (812), and the reciprocating threaded rod (813) passes through the sealing ring (811) and is rotatably connected to the sealing ring (811). A movable ring (815) is sleeved on the outer surface of the filter cylinder (810), and a threaded tube two (814) is fixed on the movable ring (815), and the threaded tube two (814) is threadedly connected to the reciprocating threaded rod (813). A cleaning ring brush (818) is fixed on the inner wall of the movable ring (815), and two sliding tubes two (816) are fixed on the movable ring (815). Two sliding rods two (817) are fixed to the bottom surface of the sealing ring (811), and the two sliding rods two (817) are respectively slidably connected to the two sliding tubes two (816).

10. A tank welding fume purification and recovery system according to claim 9, characterized in that: The interior of the recovery cylinder (801) is provided with four cleaning mechanisms (9) in a circular array. The cleaning mechanism (9) comprises two fixed frames (906) and a limit plate (901) fixed on the movable ring (815). The inner wall of the limit plate (901) is slidably connected with a vibration column (902). A baffle plate (903) is fixed at one end of the vibration column (902). A telescopic spring (905) is sleeved on the outer surface of the vibration column (902). The telescopic spring (905) is fixedly connected between the baffle plate (903) and the limit plate (901). Two impact columns (904) are fixed on the outer surface of the baffle plate (903). The two impact columns (904) are respectively located inside the two fixed frames (906). A plurality of cone blocks (907) are fixed to the inner walls of the two fixed frames (906).

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