Welding waste gas purification device

Abstract

The present invention discloses a welding waste gas purification device in the field of waste gas purification, comprising a purification box, a cleaning box, a cleaning mechanism, a purification mechanism and a sewage discharge mechanism. The purification box and the cleaning box contain cleaning water. The cleaning mechanism is used to input the welding waste gas into the cleaning box for cleaning. The purification mechanism is used to concentrate the sewage in the purification box. The sewage discharge mechanism is used to discharge the concentrated sewage. The beneficial effect of the present invention is that the waste gas generated during welding is input into the cleaning box through the cleaning mechanism, and the smoke in the waste gas is dissolved in the water, thereby purifying the smoke in the waste gas, concentrating the sewage through the purification mechanism, and discharging the concentrated sewage through the sewage discharge mechanism. That is, the device can continuously remove impurities in the water during use, thereby maintaining the cleanliness of the water, improving the purification effect, and reducing the waste of water resources. Water can be replaced without stopping the machine, so that the purification process is continuous and uninterrupted.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification, and in particular to a welding waste gas purification device. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Waste gas will be generated during the welding process, and these waste gases contain a large amount of smoke. If these smoke are not treated, they will be inhaled by workers and endanger their health. Therefore, for welding workshops, it is necessary to regularly test the smoke content in the environment. In order to make the test results meet the needs, the smoke in the exhaust gas needs to be purified.

[0003] In the prior art, the smoke in the waste is generally purified by water washing, such as a unified collection, treatment and purification device for steel pipe welding waste gas (patent publication number: CN 214437616 U). The above patent inputs the waste into water through a fan, adsorbs the smoke in the waste gas, and separates the air from the smoke.

[0004] However, smoke dust dissolved in water will cause water pollution. As more and more exhaust gas is transported, the amount adsorbed in the water increases, resulting in increasing water pollution and poor purification effect. Therefore, the water needs to be replaced as a whole. The replacement requires stopping and starting, which interrupts the purification process. On the other hand, the overall replacement of water will cause a waste of water resources. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a welding waste gas purification device, which is implemented through the following technical solutions.

[0006] A welding waste gas purification device comprises a purification box, a cleaning box, a cleaning mechanism, a purification mechanism and a sewage discharge mechanism, wherein self-locking universal wheels are fixedly connected at the four corners of the bottom of the purification box, the cleaning box is fixedly connected to the top of the purification box, and the lower left side of the cleaning box is connected to the purification box through a front-to-back symmetrical connecting pipe, the purification box and the cleaning box are filled with cleaning water, the cleaning mechanism is used to input the welding waste gas into the cleaning box for cleaning, the smoke in the welding waste gas is dissolved in the cleaning water to form sewage, the sewage in the cleaning box enters the purification box through the connecting pipe, the purification mechanism is used to concentrate the sewage in the purification box, and the sewage discharge mechanism is used to discharge the concentrated sewage.

[0007] Furthermore, the cleaning mechanism includes an exhaust pipe, an exhaust pipe and a fan; the top of the exhaust pipe is fixedly connected to the top plate of the cleaning box, the bottom of the exhaust pipe is located at the lower part of the cleaning box, and two rows of exhaust pipes are symmetrically arranged front to back. Short connecting pipes are evenly fixed to the upper part of the front and rear side plates of the cleaning box in the horizontal direction, and the heads of the short connecting pipes on the same side are connected to the exhaust pipe. The fan is fixed to the right side of the cleaning box, and the inlet and outlet of the fan are respectively fixed with the air inlet pipe and the air outlet pipe. The head of the air inlet pipe is fixed with a tee, and the other two interfaces of the tee are connected to the exhaust pipe.

[0008] Furthermore, a water supply pipe is fixedly connected to the upper left side of the cleaning box, one end of the water supply pipe extending into the cleaning box is provided with a float valve, and the other end of the water supply pipe is connected to an external tap water pipe.

[0009] Further, the purification mechanism includes a motor, a cover frame and a drive seat; a fixed seat is fixedly connected to the outside of the motor, and each side surface of the fixed seat is fixedly connected to the right side plate of the purification box through a fixed rod, and the center of the purification box is rotatably connected to the first reciprocating screw rod, and the output shaft of the motor is connected to the first reciprocating screw rod through a coupling, the left side of the cover frame is open, the center of the cover frame is slidably connected to the first reciprocating screw rod, and the filter cloth is evenly fixed to the circumference of the right side plate of the cover frame, and overflow holes are evenly opened longitudinally at the bottom of the right side plate of the cover frame, and a circular guide seat is fixedly connected to the outside of the cover frame, and the guide seat is sealingly slidably connected in the purification box, and each side plate of the guide seat is fixedly connected to a damping sleeve, and a guide rod is fixedly connected in the purification box, and the guide rod is dampingly slidably connected to the damping sleeve, and a circular positioning frame is fixedly connected to the left side of the inner cavity of the cover frame, and the drive seat is slidably connected in the cover frame, and the center of the drive seat is meshed with the first reciprocating screw rod, and a through hole is opened at the position corresponding to the filter cloth on the drive seat.

[0010] Furthermore, a square tube is fixedly connected to the position of the filter cloth on the right side plate of the purification box, a square seat is slidably connected in the square tube, a first spring is fixedly connected between the square seat and the right side plate of the square tube, a connecting shaft is provided on the left side of the square seat, a mounting plate is fixedly connected to the head of the connecting shaft, a truncated cone-shaped blocking seat is fixedly connected to the left side of the mounting plate, and a blocking ring adapted to the blocking seat is fixedly connected to the right side of the cover frame.

[0011] Furthermore, a sponge seat is fixedly connected to the left side of the blocking seat, a sleeve is fixedly connected to the center of the left side plate of the square seat, the connecting shaft is rotatably connected to the square seat, a spiral groove is opened on the connecting shaft, a pin is fixedly connected to the inner wall of the sleeve, and the pin is slidably connected in the spiral groove.

[0012] Furthermore, the sewage discharge mechanism includes a sliding frame and a sealing plate, a push rod is fixedly connected to the right side of the driving seat, and the push rod is sealingly slidably connected to the overflow hole, a sewage outlet is opened at the lower right corner of the purification box, and a sewage discharge bin is fixedly connected to the bottom of the purification box corresponding to the sewage outlet, the sliding frame is fixedly connected to the right side of the sewage outlet, and the sealing plate is slidably connected to the sliding frame, a support rod is fixedly connected to the left side of the upper surface of the sealing plate, the support rod is staggered with the guide rod, and a push seat is fixedly connected to the top of the support rod, a second spring is fixedly connected between the sealing plate and the right side plate of the sliding frame, a sealing rib is fixedly connected to the left side of the sewage outlet, and a sealing groove is opened at the left end of the sealing plate.

[0013] Furthermore, a transport bin is fixedly connected to the bottom of the left side of the cleaning box, and the left side of the transport bin is connected to the purification box through a suction pipe. A vertical upward drainage pipe is also fixedly connected to the left side of the transport bin, and a first one-way valve and a second one-way valve are respectively provided on the suction pipe and the drainage pipe. The first one-way valve allows the fluid to pass in the direction pointing to the inner cavity of the transport bin, and the second one-way valve allows the fluid to pass in the direction away from the inner cavity of the transport bin. A second reciprocating screw is rotatably connected between the left and right side plates of the cleaning box, and a transmission wheel is fixedly connected to the head of the second reciprocating screw and the output shaft of the motor. The two transmission wheels are linked by a belt, and a piston is sealingly and slidably connected in the transport bin, and the piston is meshed with the second reciprocating screw.

[0014] The beneficial effect of the present invention is that the exhaust gas generated during welding is input into the cleaning box through the cleaning mechanism, the smoke in the exhaust gas is dissolved in the water, thereby purifying the smoke in the exhaust gas, concentrating the sewage through the purification mechanism, and discharging the concentrated sewage through the sewage discharge mechanism, that is, the device can continuously remove impurities in the water during use, thereby maintaining the cleanliness of the water, improving the purification effect, reducing the waste of water resources, and can replace the water without stopping the machine, so that the purification process is continuous and uninterrupted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : A schematic structural diagram of a welding waste gas purification device according to the present invention;

[0017] Figure 2 : Figure 1 A partial enlarged view of point A shown;

[0018] Figure 3: A schematic diagram of the structure when the drive seat of the present invention moves to the rightmost position;

[0019] Figure 4 : Figure 3 A partial enlarged view of point B shown;

[0020] Figure 5 : A schematic diagram of the structure of the drive seat of the present invention after it moves from the rightmost side to the left;

[0021] Figure 6 : Figure 5 A local enlarged view of point C shown;

[0022] Figure 7 : A schematic diagram of the internal structure of the cleaning box of the present invention;

[0023] Figure 8 : A schematic diagram of the distribution of the exhaust pipes of the present invention;

[0024] Fig. 9 : A half-section view of the cover frame of the present invention;

[0025] Fig.10 : A three-dimensional schematic diagram of the drive seat of the present invention;

[0026] Fig.11 : A three-dimensional schematic diagram of the plugging seat of the present invention;

[0027] Fig.12 : Schematic diagram of the internal structure of the square tube of the present invention;

[0028] Fig.13 : A three-dimensional schematic diagram of the sealing plate of the present invention;

[0029] Fig.14 : Transmission schematic diagram of the motor described in the present invention.

[0030] The reference numerals are as follows:

[0031] 1-purification box, 11-cleaning box, 12-self-locking universal wheel, 13-connecting pipe, 14-water supply pipe, 15-float valve;

[0032] 21-exhaust pipe, 22-exhaust pipe, 23-fan, 24-short pipe, 25-inlet pipe, 26-outlet pipe, 27-tee;

[0033] 31-motor, 32-cover frame, 33-driving seat, 34-fixed seat, 35-fixed rod, 36-first reciprocating screw rod, 37-filter cloth, 38-overflow hole, 39-guide seat, 310-damping sleeve, 311-guide rod, 312-positioning frame, 313-through hole;

[0034] 41-square cylinder, 42-square seat, 43-first spring, 44-connecting shaft, 45-mounting plate, 46-blocking seat, 47-blocking ring, 48-sponge seat, 49-sleeve, 410-spiral groove, 411-pin shaft;

[0035] 51-sliding frame, 52-sealing plate, 53-push rod, 54-drain port, 55-drain bin, 56-support rod, 57-push seat, 58-second spring, 59-sealing rib, 510-sealing groove;

[0036] 61 - transport bin, 62 - water pumping pipe, 63 - drainage pipe, 64 - first one-way valve, 65 - second one-way valve, 66 - second reciprocating screw rod, 67 - transmission wheel, 68 - belt, 69 - piston. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-Figure 14 As shown, the present invention has the following five specific embodiments.

[0039] Embodiment 1, a welding waste gas purification device, includes a purification box 1, a cleaning box 11, a cleaning mechanism, a purification mechanism and a sewage discharge mechanism, self-locking universal wheels 12 are fixedly connected at the four corners of the bottom of the purification box 1, the cleaning box 11 is fixedly connected to the top of the purification box 1, and the lower left part of the cleaning box 11 is connected to the purification box 1 through a front-to-back symmetrical connecting pipe 13, the purification box 1 and the cleaning box 11 are filled with cleaning water, the cleaning mechanism is used to input the welding waste gas into the cleaning box 11 for cleaning, the smoke in the welding waste gas is dissolved in the cleaning water to form sewage, the sewage in the cleaning box 11 enters the purification box 1 through the connecting pipe 13, the purification mechanism is used to concentrate the sewage in the purification box 1, and the sewage discharge mechanism is used to discharge the concentrated sewage.

[0040] Preferably, the cleaning mechanism includes an exhaust pipe 21, an exhaust pipe 22 and a fan 23; the top of the exhaust pipe 21 is fixedly connected to the top plate of the cleaning box 11, the bottom of the exhaust pipe 21 is located at the lower part of the cleaning box 11, and the exhaust pipe 21 is symmetrically arranged in two rows front and back. Short pipes 24 are evenly fixedly connected to the upper part of the front and rear side plates of the cleaning box 11 in the transverse direction, and the heads of the short pipes 24 on the same side are connected to the exhaust pipe 22. The fan 23 is fixedly connected to the right side of the cleaning box 11, and the inlet and outlet of the fan 23 are respectively fixedly connected to the inlet pipe 25 and the outlet pipe 26. The head of the inlet pipe 25 is fixedly connected to a tee 27, and the other two interfaces of the tee 27 are connected to the exhaust pipe 22.

[0041] Preferably, a water supply pipe 14 is fixedly connected to the upper left side of the cleaning box 11, and a float valve 15 is provided at one end of the water supply pipe 14 extending into the cleaning box 11, and the other end of the water supply pipe 14 is connected to an external tap water pipe.

[0042] In this embodiment, the cleaning box 11 and the purification box 1 contain cleaning water. Figure 1 as well as Figure 7-Figure 8 As shown, when the fan 23 is working, the air above the cleaning box 11 is extracted through the short pipe 24, the exhaust pipe 22 and the air inlet pipe 25 in sequence, and discharged through the outlet pipe 26, so that a negative pressure is formed above the cleaning box 11. Under the action of the negative pressure environment, the exhaust gas generated during welding enters the bottom of the cleaning box 11 through the exhaust pipe 21, and the smoke in the exhaust gas is dissolved in the cleaning water. Under the action of the connecting pipe 13, impurities can enter the purification box 1.

[0043] The sewage in the purification box 1 is concentrated by the purification mechanism, and the concentrated sewage is discharged by the sewage discharge mechanism, so that the impurities in the cleaning water can be continuously reduced. On the one hand, the smoke and dust in the exhaust gas are dissolved in the cleaning water, and on the other hand, the impurities in the cleaning water are continuously removed, so that the pollution degree of the cleaning water will not be too high, thereby ensuring the purification effect, reducing the consumption of water resources, and ensuring that the purification process is continuous and uninterrupted.

[0044] Due to the continuous discharge of high-concentration sewage, the cleaning water will inevitably decrease, so a water replenishment pipe 14 and a float valve 15 are provided to continuously replenish the cleaning water so that the amount of the cleaning water is kept in dynamic balance.

[0045] In the second embodiment, the purification mechanism includes a motor 31, a cover frame 32 and a drive seat 33; the outside of the motor 31 is fixedly connected with a fixed seat 34, and the sides of the fixed seat 34 are fixedly connected to the right side plate of the purification box 1 through a fixed rod 35. The center of the purification box 1 is rotatably connected with a first reciprocating screw rod 36, and the output shaft of the motor 31 is connected to the first reciprocating screw rod 36 through a coupling. The left side of the cover frame 32 is open, and the center of the cover frame 32 is slidably connected to the first reciprocating screw rod 36, and the filter cloth 37 is evenly fixed on the circumference of the right side plate of the cover frame 32, and the bottom of the right side plate of the cover frame 32 is longitudinally Overflow holes 38 are evenly provided, and a circular guide seat 39 is fixedly connected to the outside of the cover frame 32. The guide seat 39 is sealingly slidably connected in the purification box 1. Damping sleeves 310 are fixedly connected to each side plate of the guide seat 39. A guide rod 311 is fixedly connected in the purification box 1. The guide rod 311 is damped and slidably connected in the damping sleeve 310. A circular positioning frame 312 is fixedly connected to the left side of the inner cavity of the cover frame 32. The drive seat 33 is slidably connected in the cover frame 32. The center of the drive seat 33 is engaged with the first reciprocating screw rod 36. A through hole 313 is provided on the drive seat 33 at a position corresponding to the filter cloth 37.

[0046] In this embodiment, Figure 1 as well as Figure 9-10 As shown, when the motor 31 is working, it drives the first reciprocating screw rod 36 to rotate, so that the driving seat 33 moves back and forth left and right.

[0047] When the driving seat 33 moves to the right, since the cover frame 32 is connected to the guide rod 311 in a damping sliding manner through the damping sleeve 310, the driving seat 33 first moves to the right while the cover frame 32 remains stationary. When the driving seat 33 contacts the right side of the inner cavity of the cover frame 32, the driving seat 33 will drive the cover frame 32 to move synchronously. At this time, the overflow hole 38 is closed, and the water on the right side of the cover frame 32 enters the left side of the cover frame 32 through the filter cloth 37. Under the action of the filter cloth 37, impurities are trapped, so that the pollution degree in the water on the right side of the cover frame 32 continues to increase, and the sewage discharge mechanism can discharge the concentrated sewage. When the driving seat 33 moves to the left from the rear side, the cover frame 32 first remains stationary while the driving seat 33 moves. When the driving seat 33 contacts the positioning frame 312, it will drive the cover frame 32 to move left. At this time, the overflow hole 38 is opened, and the water on the left side of the cover frame 32 enters the right side of the cover frame 32 through the overflow hole 38.

[0048] Embodiment three, a square tube 41 is fixedly connected to the position of the filter cloth 37 on the right side plate of the purification box 1, a square seat 42 is slidably connected inside the square tube 41, a first spring 43 is fixedly connected between the square seat 42 and the right side plate of the square tube 41, a connecting shaft 44 is provided on the left side of the square seat 42, a mounting plate 45 is fixedly connected to the head of the connecting shaft 44, a truncated cone-shaped blocking seat 46 is fixedly connected to the left side of the mounting plate 45, and a blocking ring 47 adapted to the blocking seat 46 is fixedly connected to the right side of the cover frame 32.

[0049] Preferably, a sponge seat 48 is fixedly connected to the left side of the blocking seat 46, a sleeve 49 is fixedly connected to the center of the left plate of the square seat 42, a connecting shaft 44 is rotatably connected to the square seat 42, a spiral groove 410 is opened on the connecting shaft 44, a pin 411 is fixedly connected to the inner wall of the sleeve 49, and the pin 411 is slidably connected in the spiral groove 410.

[0050] In this embodiment, Figure 1 as well as Figure 11-Figure 12 As shown, when the concentrated sewage is discharged, the water on the left side of the cover frame 32 may be discharged synchronously through the filter cloth 37. To avoid this situation, the present application is provided with a blocking seat 46.

[0051] When the cover frame 32 moves to the right, the blocking seat 46 first enters the blocking ring 47. As the cover frame 32 continues to move to the right, the concentrated sewage is discharged. The blocking seat 46 is connected to the cover frame 32 to move, that is, the connecting shaft 44 and the square seat 42 move to the right, and the first spring 43 is compressed, so that the blocking block is always located in the blocking ring 47, so that the concentrated sewage is discharged, and the water on the left side of the cover frame 32 will not be discharged.

[0052] When the filter cloth 37 is filtering sewage, some impurities may adhere to it, resulting in a deterioration in the filtering effect. To avoid this situation, when the blocking block in the present application moves rightward relative to the cover frame 32, the connecting shaft 44 moves synchronously. Since a spiral groove 410 and a pin shaft 411 are provided, the pin shaft 411 can drive the connecting shaft 44 to rotate, so that the mounting plate 45, the blocking block and the sponge seat 48 move synchronously, and the filter cloth 37 is brushed by the sponge seat 48 to keep the filter cloth 37 clean. When the blocking seat 46 is separated from the blocking ring 47, the inner wall of the blocking ring 47 is tilted to facilitate the falling of impurities after brushing.

[0053] In the fourth embodiment, the sewage discharge mechanism includes a sliding frame 51 and a sealing plate 52. A push rod 53 is fixedly connected to the right side of the driving seat 33. The push rod 53 is sealingly slidably connected in the overflow hole 38. A sewage outlet 54 is opened at the lower right corner of the purification box 1. A sewage discharge bin 55 is fixedly connected to the bottom of the purification box 1 corresponding to the sewage outlet 54. The sliding frame 51 is fixedly connected to the right side of the sewage outlet 54. The sealing plate 52 is slidably connected in the sliding frame 51. A support rod 56 is fixedly connected to the left side of the upper surface of the sealing plate 52. The support rod 56 is staggered with the guide rod 311. A push seat 57 is fixedly connected to the top of the support rod 56. A second spring 58 is fixedly connected between the sealing plate 52 and the right side plate of the sliding frame 51. A sealing rib 59 is fixedly connected to the left side of the sewage outlet 54. A sealing groove 510 is opened at the left end of the sealing plate 52.

[0054] In this embodiment, Figure 1 as well as Fig.13 As shown, when the cover frame 32 moves to the right, when the blocking seat 46 enters the blocking ring 47, the push rod 53 contacts the push seat 57. When the cover frame 32 continues to move to the right, the push rod 53 pushes the push seat 57 to the right, thereby causing the sealing plate 52 to move to the right, the sewage outlet 54 opens, and the concentrated sewage is discharged from the sewage outlet 54 and the sewage bin 55. When the drive seat 33 moves from the rightmost side to the left, it drives the push rod 53 to move. Under the action of the second spring 58, the sealing plate 52 is reset, and the sealing rib 59 enters the sealing groove 510 to improve the sealing effect. Then the drive seat 33 continues to move until it contacts the positioning frame 312. At this time, the push rod 53 disengages from the overflow hole 38, and the overflow hole 38 opens.

[0055] In embodiment five, a transport bin 61 is fixedly connected to the bottom of the left side of the cleaning box 11, and the left side of the transport bin 61 is connected to the purification box 1 through a water suction pipe 62. A vertical upward drainage pipe 63 is also fixedly connected to the left side of the transport bin 61. The water suction pipe 62 and the drainage pipe 63 are respectively provided with a first one-way valve 64 and a second one-way valve 65. The first one-way valve 64 allows the fluid to pass in the direction pointing to the inner cavity of the transport bin 61, and the second one-way valve 65 allows the fluid to pass in the direction away from the inner cavity of the transport bin 61. A second reciprocating screw 66 is rotatably connected between the left and right side plates of the cleaning box 11, and a transmission wheel 67 is fixedly connected to the head of the second reciprocating screw 66 and the output shaft of the motor 31. The two transmission wheels 67 are linked by a belt 68. A piston 69 is sealingly and slidably connected in the transport bin 61, and the piston 69 is meshed with the second reciprocating screw 66.

[0056] In this embodiment, although the connecting pipe 13 connects the cleaning box 11 and the purification box 1 to achieve the interconnection of sewage, the effect is poor if it only relies on the natural convection of water, and the impurities in the cleaning box 11 cannot enter the purification box 1 in time to be removed.

[0057] To avoid the above situation, if Figure 1 and Fig.14 As shown, when the motor 31 is working, the second reciprocating screw 66 is driven to rotate through the transmission wheel 67 and the belt 68, thereby driving the piston 69 to move back and forth, and the water in the purification box 1 is extracted through the suction pipe 62 and the first one-way valve 64, and is transported to the upper part of the cleaning box 11 through the drainage pipe 63 and the second one-way valve 65, and the sewage with higher concentration at the bottom of the cleaning box 11 enters the purification box 1 through the connecting pipe 13.

[0058] The working principle of the present invention is:

[0059] When the fan 23 is working, the welding waste gas enters the cleaning box 11, and the smoke in the waste gas is dissolved in the cleaning water. When the motor 31 is working, the sewage with a higher concentration at the bottom of the cleaning box 11 can be exchanged into the purification box 1.

[0060] When the purification mechanism is working, Figure 1-Figure 2As shown, first, the driving seat 33 contacts the right side of the inner wall of the cover frame 32 and drives the cover frame 32 to move to the right. At this time, the overflow hole 38 is closed by the driving seat 33 and the push rod 53, and the water on the right side of the cover frame 32 enters the left side of the cover frame 32 through the filter cloth 37, so that the sewage on the right side of the cover frame 32 is continuously concentrated. When the blocking seat 46 enters the blocking ring 47, the push rod 53 contacts the push seat 57. When the cover frame 32 continues to move to the right, the sealing plate 52 moves to the right. At this time, the sewage outlet 54 is opened, and the concentrated sewage is discharged. The blocking seat 46 enters the blocking ring 47, which can prevent the water on the left side of the cover frame 32 from being discharged through the filter cloth 37, ensuring that only the concentrated sewage is discharged, and the blocking seat 46 drives the connecting shaft 44 to move when the cover frame 32 moves. The connecting shaft 44 is driven to rotate by the pin shaft 411, and the sponge seat 48 rotates to scrub the filter cloth 37.

[0061] like Figure 3-Figure 4 As shown, the drive seat 33 moves to the right at this time, and starts to move to the left from this time.

[0062] like Figure 5-Figure 6 As shown, when the driving seat 33 moves to the left, the cover frame 32 first remains stationary, and the driving seat 33 drives the push rod 53 to move to the left. Under the action of the second spring 58, the sealing plate 52 is reset. When the right side of the push rod 53 is flush with the right side surface of the cover frame 32, the sealing plate 52 completely closes the drain port 54, and then the sealing seat continues to move to the left. When the sealing seat contacts the positioning frame 312, the push rod 53 is separated from the overflow hole 38 (i.e. Figure 5-Figure 6 In the state shown in the figure), the sewage on the left side of the cover frame 32 can enter the right side of the cover frame 32 through the through hole 313 and the overflow hole 38.

[0063] Then the driving seat 33 drives the cover frame 32 to move leftward. Under the action of the first spring 43, the blocking seat 46 is located in the blocking ring 47 to prevent sewage from passing through the filter cloth 37. When the first spring 43 recovers, the cover frame 32 continues to move leftward, and the blocking seat 46 is separated from the blocking ring 47.

[0064] Until the drive seat 33 moves to the leftmost side, the drive seat 33 will move to the right again. This cycle can continuously remove impurities in the water.

[0065] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding waste gas purification device, comprising a purification box (1), a cleaning box (11), a cleaning mechanism, a purification mechanism and a sewage discharge mechanism, characterized in that: Self-locking universal wheels (12) are fixedly connected at the four corners of the bottom of the purification box (1); the cleaning box (11) is fixedly connected to the top of the purification box (1); the lower left side of the cleaning box (11) is connected to the purification box (1) through a front-to-back symmetrical connecting pipe (13); the purification box (1) and the cleaning box (11) are filled with cleaning water; the cleaning mechanism is used to input welding waste gas into the cleaning box (11) for cleaning; smoke in the welding waste gas is dissolved in the cleaning water to form sewage; the sewage in the cleaning box (11) enters the purification box (1) through the connecting pipe (13); the purification mechanism is used to concentrate the sewage in the purification box (1); and the sewage discharge mechanism is used to discharge the concentrated sewage; The purification mechanism comprises a motor (31), a cover frame (32) and a drive seat (33); the motor (31) is fixedly connected to a fixed seat (34) on the outside, and each side of the fixed seat (34) is fixedly connected to the right side plate of the purification box (1) through a fixing rod (35); the center of the purification box (1) is rotatably connected to a first reciprocating screw rod (36); the output shaft of the motor (31) is connected to the first reciprocating screw rod (36) through a coupling; the left side of the cover frame (32) is open, the center of the cover frame (32) is slidably connected to the first reciprocating screw rod (36), and the right side plate of the cover frame (32) is evenly fixed with a filter cloth (37) on the circumference; the bottom of the right side plate of the cover frame (32) is evenly provided with overflow holes (38) in the longitudinal direction; the outside of the cover frame (32) is fixedly connected to a circular guide seat (39); the guide seat (39) is sealingly slidably connected in the purification box (1); A damping sleeve (310) is fixedly connected to each side plate of the guide seat (39), a guide rod (311) is fixedly connected inside the purification box (1), and the guide rod (311) is slidably connected in the damping sleeve (310) in a damping manner. A circular positioning frame (312) is fixedly connected to the left side of the inner cavity of the cover frame (32), and the drive seat (33) is slidably connected in the cover frame (32). The center of the drive seat (33) is engaged with the first reciprocating screw rod (36), and a through hole (313) is opened on the drive seat (33) at a position corresponding to the filter cloth (37).

2. A welding waste gas purification device according to claim 1, characterized in that: The cleaning mechanism comprises an exhaust pipe (21), an exhaust pipe (22) and a fan (23); the top of the exhaust pipe (21) is fixedly connected to the top plate of the cleaning box (11), the bottom of the exhaust pipe (21) is located at the bottom of the cleaning box (11), and two rows of exhaust pipes (21) are symmetrically arranged in front and back. Short pipes (24) are evenly fixedly connected to the upper parts of the front and rear side plates of the cleaning box (11) in a transverse manner, and the heads of the short pipes (24) on the same side are connected to the exhaust pipe (22). The fan (23) is fixedly connected to the right side of the cleaning box (11), and the inlet and outlet of the fan (23) are respectively fixedly connected to the inlet pipe (25) and the outlet pipe (26). The head of the inlet pipe (25) is fixedly connected to a tee (27), and the other two interfaces of the tee (27) are connected to the exhaust pipe (22).

3. A welding waste gas purification device according to claim 1, characterized in that: A water supply pipe (14) is fixedly connected to the upper left side of the cleaning box (11); one end of the water supply pipe (14) extending into the cleaning box (11) is provided with a float valve (15); the other end of the water supply pipe (14) is connected to an external tap water pipe.

4. A welding waste gas purification device according to claim 1, characterized in that: A square tube (41) is fixedly connected to the position of the filter cloth (37) on the right side plate of the purification box (1); a square seat (42) is slidably connected inside the square tube (41); a first spring (43) is fixedly connected between the square seat (42) and the right side plate of the square tube (41); a connecting shaft (44) is provided on the left side of the square seat (42); a mounting plate (45) is fixedly connected to the head of the connecting shaft (44); a truncated cone-shaped blocking seat (46) is fixedly connected to the left side of the mounting plate (45); and a blocking ring (47) adapted to the blocking seat (46) is fixedly connected to the right side of the cover frame (32).

5. A welding waste gas purification device according to claim 4, characterized in that: A sponge seat (48) is fixedly connected to the left side of the blocking seat (46), a sleeve (49) is fixedly connected to the center of the left side plate of the square seat (42), the connecting shaft (44) is rotatably connected to the square seat (42), a spiral groove (410) is formed on the connecting shaft (44), and a pin shaft (411) is fixedly connected to the inner wall of the sleeve (49), and the pin shaft (411) is slidably connected in the spiral groove (410).

6. A welding waste gas purification device according to claim 1, characterized in that: The sewage discharge mechanism comprises a sliding frame (51) and a sealing plate (52); a push rod (53) is fixedly connected to the right side of the driving seat (33); the push rod (53) is sealingly slidably connected to the overflow hole (38); a sewage discharge port (54) is opened at the lower right corner of the purification box (1); a sewage discharge bin (55) is fixedly connected to the bottom of the purification box (1) at a position corresponding to the sewage discharge port (54); the sliding frame (51) is fixedly connected to the right side of the sewage discharge port (54); the sealing plate (52) is slidably connected to the sliding frame (51); a support rod (56) is fixedly connected to the left side of the upper surface of the sealing plate (52); the support rod (56) is staggered with the guide rod (311); a push seat (57) is fixedly connected to the top of the support rod (56); a second spring (58) is fixedly connected between the sealing plate (52) and the right side plate of the sliding frame (51); A sealing rib (59) is fixedly connected to the left side of the sewage outlet (54), and a sealing groove (510) is formed at the left end of the sealing plate (52).

7. A welding waste gas purification device according to claim 1, characterized in that: A transport bin (61) is fixedly connected to the bottom of the left side of the cleaning box (11). The left side of the transport bin (61) is connected to the purification box (1) via a water extraction pipe (62). A vertical upward drainage pipe (63) is also fixedly connected to the left side of the transport bin (61). A first one-way valve (64) and a second one-way valve (65) are respectively provided on the water extraction pipe (62) and the drainage pipe (63). The first one-way valve (64) allows fluid to pass in a direction pointing to the inner cavity of the transport bin (61). The second one-way valve (65) allows fluid to pass in a direction away from the inner cavity of the transport bin (61). A second reciprocating screw (66) is rotatably connected between the left and right side plates of the cleaning box (11). A transmission wheel (67) is fixedly connected to the head of the second reciprocating screw (66) and the output shaft of the motor (31). The two transmission wheels (67) are linked by a belt (68). A piston (69) is sealingly and slidably connected in the transport bin (61), and the piston (69) is meshed with the second reciprocating screw rod (66).

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