Device for preventing rusting of strip steel surface

Abstract

This invention relates to the field of steel strip pickling technology, specifically to a device for preventing steel strip surface rusting, comprising a rinsing tank; a drying box fixed to one side of the rinsing tank; a tank cover located on the top of the rinsing tank; multiple liquid delivery pipes rotatably connected to the inside of the rinsing tank; and six partitions fixed to the inner wall of the tank cover. By activating a first motor, the first motor drives a bidirectional ball screw to rotate via its output shaft. The bidirectional ball screw drives a moving plate to move in the opposite direction, which in turn drives a rack to move in the opposite direction. The rack drives a first gear to rotate in the opposite direction, which in turn drives an air outlet pipe to reciprocate in the opposite direction. The air outlet pipe then drives a blower pipe to reciprocate in the opposite direction, causing the blower pipe to oscillate and blow air onto the steel strip, expanding the drying range of the steel strip and achieving rapid drying. Furthermore, each blower pipe is equipped with an air valve, which can be opened according to the width of the steel strip to prevent gas leakage and achieve energy saving.

Description

Technical Field

[0001] This invention relates to the field of steel strip pickling technology, and in particular to a device for preventing steel strip surface from rusting. Background Technology

[0002] Strip steel is a narrow and long steel plate produced to meet the needs of different industrial sectors and is used as a device to prevent the surface of strip steel from rusting. Most strip steel is currently produced by hot rolling. Hot-rolled steel plates are easy to process and have good ductility, but they have high hardness, low strength, poor surface quality, and may exhibit surface oxidation, rust, pitting, and other phenomena. Moreover, hot-rolled steel plates are generally medium to heavy plates, which cannot meet customers' requirements for strip steel dimensional accuracy, plate shape, surface quality, and thinner thickness.

[0003] A Chinese patent with publication number CN109536980A discloses a steel strip pickling circulation device, including a housing, a conveyor rod, an acid spraying mechanism, a feeding mechanism, a driving mechanism, a collecting mechanism, and a cleaning mechanism. When the steel plate moves inside the housing, one acid spraying mechanism sprays acid onto the surface of the steel plate, and a cleaning mechanism rotates to bring the acid into contact with the steel plate, removing the oxide film on the surface of the steel plate. The acid that has been used initially falls into the housing. At this time, the feeding mechanism inside the second acid spraying mechanism moves, drawing the acid from the housing back into the second acid spraying mechanism. The acid is then sprayed onto the surface of the steel plate again through the second acid spraying mechanism, and the cleaning mechanism cleans the steel plate again. The acid that has been used twice falls into another housing, and is then drawn into another acid spraying mechanism by another feeding mechanism, coming into contact with the steel plate again. This effectively removes the oxide film and makes efficient use of the acid, avoiding waste.

[0004] In the above-mentioned technology, the cooperation of the acid spraying mechanism, feeding mechanism, collection mechanism and cleaning mechanism not only facilitates the cleaning of the strip steel surface, but also facilitates the collection of waste. However, after the strip steel is pickled, there will be residual acid on the surface. If the acid is not dried in time, the strip steel will be damp and will easily rust after coiling. If the drying is set in the next process, the damp strip steel will easily adhere to dust and impurities, and will require more operating space.

[0005] Therefore, the present invention provides a device for preventing rust on the surface of steel strip. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem of acid liquid not being dried on the surface of the strip steel in a timely manner in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention provides a device for preventing rust on the surface of steel strip, comprising:

[0008] Rinse tank;

[0009] A drying box fixed to one side of the rinsing tank;

[0010] A tank cover installed at the top of the rinsing tank;

[0011] Multiple infusion tubes are rotatably connected to the inside of the rinsing tank;

[0012] Six partitions are fixed to the inner wall of the slot cover;

[0013] A drying unit located inside a drying oven is used to dry the acid solution on the surface of the steel strip.

[0014] The drying unit includes two air outlet pipes rotatably connected to the inner wall of the drying chamber via bearings; each air outlet pipe is connected and fixedly connected to multiple blower pipes; each blower pipe has a flat hole; each blower pipe is equipped with an air valve; the air outlet pipes are all externally connected to a cylinder; one end of each air outlet pipe extends to the outside of the drying chamber and is fixedly connected to a first gear; each first gear has a rack on one side, and each rack meshes with a corresponding first gear; the racks are all equipped with a drive mechanism; the drying chamber has a discharge port on the side away from the rinsing tank.

[0015] In one embodiment of the present invention, the driving mechanism includes two fixed plates fixedly connected to a drying oven; a first motor is fixedly connected to one of the fixed plates; the output shaft of the first motor is rotatably connected to the fixed plate via a bearing, and a bidirectional ball screw is fixedly connected to the output shaft of the first motor; the bidirectional ball screw is rotatably connected to the fixed plate via a bearing; two movable plates are threadedly connected to the bidirectional ball screw; the movable plates are symmetrically arranged on the bidirectional ball screw, and the inner sidewalls of the movable plates are all fixedly connected to the outer sidewalls of the rack; two guide rods are slidably connected to the movable plates, and both ends of the guide rods are fixedly connected to the fixed plate.

[0016] In one embodiment of the present invention, there are nine infusion tubes, three of which are grouped together; each infusion tube is connected to and fixed with multiple nozzles; each nozzle is equipped with a solenoid valve; and the spray angle of each nozzle is set to 30°.

[0017] In one embodiment of the present invention, three liquid storage tanks are fixedly connected to the outside of the rinsing tank; one end of the infusion pipe extends to the outside of the rinsing tank and is fixedly connected to the liquid storage tank; one end of the outlet pipe is fixedly connected to the bottom of one of the liquid storage tanks; the other end of the outlet pipe is fixedly connected to a first liquid tank; the first liquid tank contains hydrochloric acid; the bottoms of the other two liquid storage tanks are jointly fixedly connected to one end of a three-way pipe; the other end of the three-way pipe is fixedly connected to a second liquid tank; the second liquid tank contains demineralized water; and a water pump is installed on both the outlet pipe and the three-way pipe.

[0018] In one embodiment of the present invention, the rinsing tank has two conveying holes; each conveying hole is rotatably connected to two guide rollers via bearings; the inner wall of the rinsing tank is rotatably connected to six squeeze rollers via bearings; adjacent squeeze rollers are arranged vertically; the inner side wall of the rinsing tank is provided with rollers; the squeeze rollers are all arranged between the rollers; and the partitions are all arranged on both sides of the squeeze rollers.

[0019] In one embodiment of the present invention, an L-shaped plate is fixedly connected to the outer wall of the rinsing tank; a second motor is fixedly connected to the L-shaped plate; the output shaft of the second motor is fixedly connected to the roller shaft of a middle squeezing roller; a second roller and a third roller are fixedly connected to the roller shaft of the squeezing roller; a first roller is fixedly connected to the roller shaft of one of the squeezing rollers; a second roller is fixedly connected to the roller shaft of the other squeezing roller; one end of a first belt is sleeved on the outer side of the first roller; the other end of the first belt is sleeved on the outer side of the third roller; one end of a second belt is sleeved on the outer side of the second roller; the other end of the second belt is sleeved on the outer side of the fourth roller.

[0020] In one embodiment of the present invention, a second gear is fixedly connected to the roller shaft of each of the three upper squeezing rollers; a third gear is fixedly connected to the roller shaft of each of the other three squeezing rollers; and the second gear meshes with the lower third gear.

[0021] In one embodiment of the present invention, three support pillars are fixedly connected to the top of the rinsing tank; a threaded rod is rotatably connected to the top of the rinsing tank via a bearing; the support pillars and the threaded rod are located at the four corners of the tank cover; the tank cover slides on the three support pillars; the tank cover is threadedly connected to the threaded rod, and a rotating block is fixedly connected to the top of the threaded rod.

[0022] In one embodiment of the present invention, the bottom of the drying box is sloping; a drainage hole is provided on the side wall of the rinsing tank; the drainage hole is engaged with the bottom of the drying box.

[0023] In one embodiment of the present invention, one end of a filter plate is rotatably connected to the side wall of the rinsing tank via a rotating shaft; four sliding columns are slidably connected to the other end of the filter plate; a side plate is fixedly connected to the bottom of the four sliding columns; the side plate is fixedly connected to the inner side wall of the rinsing tank; a spring is sleeved on the outer side of each sliding column; and the spring is fixedly connected between the filter plate and the side plate.

[0024] The technical solution of the present invention has the following advantages compared with the prior art:

[0025] The present invention discloses a device for preventing rust on the surface of steel strip. By setting a rack and a first gear, a first motor is activated. The first motor drives a bidirectional ball screw to rotate via its output shaft. The bidirectional ball screw drives a moving plate to move in the opposite direction. A ball nut seat is provided at the connection between the bidirectional ball screw and the moving plate, ensuring the radial movement of the moving plate. During movement, the moving plate slides on a guide rod, which limits the moving plate vertically. The moving plate drives the rack to move in the opposite direction, which in turn drives the first gear to rotate in the opposite direction. The gear drives the air outlet pipe to reciprocate in the opposite direction, which in turn drives the air blower pipe to reciprocate in the opposite direction. The air blower pipe oscillates back and forth, blowing air onto the steel strip, expanding the drying range and achieving rapid drying. Furthermore, each air blower pipe is equipped with an air valve, which can be opened according to the width of the steel strip to prevent gas leakage and save energy.

[0026] The present invention discloses a device for preventing rust on the surface of steel strip. By setting a partition, rotating a rotating block, the rotating block drives a threaded rod to rotate, and the threaded rod drives the groove cover to move. During the movement, the groove cover slides on the support column, and the support column moves the upper limit of the groove cover in the vertical direction. The groove cover drives the partition to move. The partition moves to the position of the steel strip and stops moving. The spray angle of the nozzle is set to 30° to ensure that the splashed hydrochloric acid and demineralized water pickling liquids are not easily splashed too far. Under the action of the squeeze roller and the partition, only a small amount of acid liquid is carried out. Attached Figure Description

[0027] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a second perspective view of the present invention;

[0030] Figure 3 This is a sectional view of the present invention;

[0031] Figure 4 This is a perspective view of the first gear and rack in this invention;

[0032] Figure 5 This is a perspective view of the interior of the rinsing tank in this invention;

[0033] Figure 6 This is a perspective view of the filter plate in this invention;

[0034] Figure 7 This is a perspective view of the partition in this invention;

[0035] Explanation of reference numerals in the accompanying drawings: 1. Rinsing tank; 11. Filter plate; 12. Side plate; 13. Sliding column; 14. Spring; 15. Drainage hole; 2. Drying box; 21. Discharge port; 22. Air outlet pipe; 23. Air blowing pipe; 24. Air valve; 25. First gear; 26. Rack; 27. First motor; 28. Fixing plate; 29. ​​Bidirectional ball screw; 210. Guide rod; 211. Moving plate; 3. Tank cover; 31. Support column; 32. Threaded rod; 33. Rotary block; 34. Partition plate; 4. Infusion pipe; 41. Nozzle; 42. Solenoid valve; 43. Storage tank; 44. Discharge pipe; 45. First liquid tank; 46. T-connector; 47. Second liquid tank; 5. Second motor; 51. L-shaped plate; 52. First belt; 53. Second belt; 54. First roller; 55. Second roller; 56. Third roller; 57. Fourth roller; 6. Squeeze roller; 61. Second gear; 62. Third gear; 7. Guide roller; 71. Conveying hole. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0037] Please see Figure 1 - Figure 7 The present invention provides a device for preventing rust on the surface of steel strip, comprising:

[0038] Rinse tank 1;

[0039] Drying box 2 is fixed to one side of rinsing tank 1;

[0040] A tank cover 3 is installed at the top of the rinsing tank 1;

[0041] Multiple infusion tubes 4 are rotatably connected to the inside of the rinsing tank 1;

[0042] Six partitions 34 are fixed to the inner wall of the groove cover 3;

[0043] A drying unit is installed inside the drying oven 2, which is used to dry the acid solution on the surface of the strip steel;

[0044] The drying unit includes two air outlet pipes 22 rotatably connected to the inner wall of the drying chamber 2 via bearings; each air outlet pipe 22 is connected and fixedly connected to multiple air blowing pipes 23; each air blowing pipe 23 is provided with a flat hole; each air blowing pipe 23 is provided with an air valve 24; the air outlet pipes 22 are all externally connected to a cylinder; one end of each air outlet pipe 22 extends to the outside of the drying chamber 2 and is fixedly connected to a first gear 25; each of the first gears 25 is provided with a rack 26 on one side, and each rack 26 meshes with the corresponding first gear 25; the racks 26 are all provided with a drive mechanism; the drying chamber 2 has a discharge port 21 on the side away from the rinsing tank 1.

[0045] When the drying unit provided by the present invention is used, the strip steel is first passed through the rinsing tank 1, and the liquid is transported by the liquid delivery pipe 4 to the rinsing tank 1 for acid washing. The rinsing tank 1 is equipped with a partition 34, which effectively isolates the front-end contamination. Then the strip steel passes out of the rinsing tank 1 and enters the drying box 2. The cylinder is turned on, and the cylinder outputs gas into the drying box 2 through the air outlet pipe 22 and the air blowing pipe 23. The gas is blown to the surface of the strip steel for air drying, and the acid liquid brought out is blown away to avoid the generation of yellow spots on the surface of the strip steel plate.

[0046] During the drying process, two racks 26 are driven to move in opposite directions. The racks 26 drive the first gear 25 to rotate in opposite directions. The gear drives the air outlet pipe 22 to rotate back and forth in opposite directions. The air outlet pipe 22 drives the air blower pipe 23 to rotate back and forth in opposite directions. The air blower pipe 23 swings back and forth and blows towards the strip steel, expanding the drying range of the strip steel and achieving the function of rapid drying of the strip steel. In addition, each air blower pipe 23 is equipped with an air valve 24. The air valve 24 can be opened according to the width of the strip steel to prevent gas from escaping and achieve the function of saving energy.

[0047] Furthermore, such as Figure 1 and Figure 4 As shown, the driving mechanism includes two fixed plates 28 fixed to the drying chamber 2; a first motor 27 is fixedly connected to one of the fixed plates 28; the output shaft of the first motor 27 is rotatably connected to the fixed plate 28 via bearings, and a bidirectional ball screw 29 is fixedly connected to the output shaft of the first motor 27; the bidirectional ball screw 29 is rotatably connected to the fixed plate 28 via bearings; two movable plates 211 are threadedly connected to the bidirectional ball screw 29; the movable plates 211 are symmetrically arranged on the bidirectional ball screw 29, and the inner sidewalls of the movable plates 211 are all fixedly connected to the outer sidewalls of the rack 26; two guide rods 210 are slidably connected to the movable plates 211, and both ends of the guide rods 210 are fixedly connected to the fixed plate 28.

[0048] When using the bidirectional ball screw 29 provided by the present invention, the first motor 27 is first turned on. The first motor 27 drives the bidirectional ball screw 29 to rotate through the output shaft. The bidirectional ball screw 29 drives the moving plate 211 to move in the opposite direction. A ball nut seat is provided at the connection between the bidirectional ball screw 29 and the moving plate 211. The ball nut seat ensures the radial movement of the moving plate 211. During the movement, the moving plate 211 slides on the guide rod 210. The guide rod 210 limits the moving plate 211 in the vertical direction. The moving plate 211 drives the rack 26 to move in the opposite direction, realizing the function of driving the two racks 26 to move in opposite directions.

[0049] Furthermore, such as Figure 3As shown, there are nine infusion tubes 4, with three infusion tubes 4 forming a group; each infusion tube 4 is connected and fixed with multiple nozzles 41; each nozzle 41 is equipped with a solenoid valve 42; the spray angle of the nozzle 41 is set to 30°.

[0050] When the nozzle 41 provided by the present invention is in use, pickling liquid is transported in the infusion pipe 4 and sprayed onto the strip steel through the nozzle 41. The spraying angle of the nozzle 41 is set to 30° to ensure that the splashed hydrochloric acid and demineralized water and other pickling liquids are not easily splashed too far. Under the action of the squeeze roller 6 and the baffle plate, only a small amount of acid liquid is carried out.

[0051] When in use, the solenoid valve 42 opens according to the width of the strip, and the solenoid valve 42 controls the corresponding nozzle 41 to spray, preventing excess pickling solution from being sprayed out.

[0052] Furthermore, such as Figure 2 As shown, three storage tanks 43 are fixedly connected to the outside of the rinsing tank 1; one end of the infusion pipe 4 extends to the outside of the rinsing tank 1 and is fixedly connected to the storage tank 43; one end of the outlet pipe 44 is fixedly connected to the bottom of one of the storage tanks 43; the other end of the outlet pipe 44 is fixedly connected to the first liquid tank 45; the first liquid tank 45 contains hydrochloric acid; the bottoms of the other two storage tanks 43 are connected to one end of the three-way pipe 46; the other end of the three-way pipe 46 is fixedly connected to the second liquid tank 47; the second liquid tank 47 contains demineralized water; and water pumps are installed on both the outlet pipe 44 and the three-way pipe 46.

[0053] When the first liquid tank 45 and the second liquid tank 47 provided by the present invention are in use, the water pump is turned on. Under the action of the water pump, the hydrochloric acid in the first liquid tank 45 enters the corresponding storage tank 43 through the outlet pipe 44, and the demineralized water in the second liquid tank 47 enters the corresponding storage tank 43 through the three-way pipe 46. The liquid in the storage tank 43 is transported through the delivery pipe 4. The demineralized water is provided in two places, which facilitates the treatment of oxides on the surface of the strip steel and achieves the effect of pickling.

[0054] Furthermore, such as Figure 3 and Figure 5 As shown, the rinsing tank 1 has two conveying holes 71; each conveying hole 71 is rotatably connected to two guide rollers 7 via bearings; the inner wall of the rinsing tank 1 is rotatably connected to six squeezing rollers 6 via bearings; adjacent squeezing rollers 6 are arranged vertically; the inner side wall of the rinsing tank 1 is provided with rollers; the squeezing rollers 6 are all arranged between the rollers; the partitions 34 are all arranged on both sides of the squeezing rollers 6.

[0055] When the squeeze roller 6 provided by the present invention is used, the strip steel is subjected to pickling spray when it passes through the spray nozzle 41. After pickling spray, the strip steel passes through the partition 34 and the squeeze roller 6 once. The partition 34 effectively isolates the front-end contamination, and the squeeze roller 6 effectively squeezes the liquid on the surface of the strip steel. Only a small amount of acid liquid is carried out under the action of the squeeze roller 6 and the partition plate.

[0056] Furthermore, such as Figure 5 As shown, an L-shaped plate 51 is fixed to the outer wall of the rinsing tank 1; a second motor 5 is fixed to the L-shaped plate 51; the output shaft of the second motor 5 is fixed to the roller shaft of a middle squeezing roller 6; a second rotating wheel 55 and a third rotating wheel 56 are fixed to the roller shaft of the squeezing roller 6; a first rotating wheel 54 is fixed to the roller shaft of one squeezing roller 6; a second rotating wheel 55 is fixed to the roller shaft of the other squeezing roller 6; one end of a first belt 52 is sleeved on the outer side of the first rotating wheel 54; the other end of the first belt 52 is sleeved on the outer side of the third rotating wheel 56; one end of a second belt 53 is sleeved on the outer side of the second rotating wheel 55; the other end of the second belt 53 is sleeved on the outer side of the fourth rotating wheel 57.

[0057] When the first belt 52 and the second belt 53 provided by the present invention are in use, the second motor 5 is first turned on. The output shaft of the second motor 5 drives the middle squeezing roller 6 to rotate through the roller shaft, and at the same time drives the third rotating wheel 56 and the fourth rotating wheel 57 to rotate. During the rotation of the third rotating wheel 56, the third rotating wheel 56 drives the first belt 52 to rotate, the first belt 52 drives the first rotating wheel 54 to rotate, and the first rotating wheel 54 drives the connected squeezing roller 6 to rotate through the roller shaft. During the rotation of the fourth rotating wheel 57, the fourth rotating wheel 57 drives the second belt 53 to rotate, the second belt 53 drives the second rotating wheel 55 to rotate, and the second rotating wheel 55 drives the connected squeezing roller 6 to rotate through the roller shaft, so as to realize the function of simultaneous rotation of the three squeezing rollers 6 above.

[0058] Furthermore, such as Figure 2 As shown, the upper three squeezing rollers 6 are all fixedly connected to the roller shafts of the roller shafts of the three squeezing rollers 6; the other three squeezing rollers 6 are all fixedly connected to the roller shafts of ...

[0059] When the second gear 61 and the third gear 62 provided by the present invention are in use, the three upper squeezing rollers 6 rotate, which drives the second gear 61 through the roller shaft. Since the second gear 61 meshes with the third gear 62, the second gear 61 drives the third gear 62 to rotate. The third gear 62 drives the three lower squeezing rollers 6 to rotate through the roller shaft, so that the upper and lower sets of squeezing rollers 6 move in opposite directions, thereby realizing the function of squeezing the pickling liquid on the surface of the strip steel.

[0060] Furthermore, such as Figure 2 and Figure 7 As shown, three support pillars 31 are fixedly connected to the top of the rinsing tank 1; a threaded rod 32 is rotatably connected to the top of the rinsing tank 1 via a bearing; the support pillars 31 and the threaded rod 32 are located at the four corners of the tank cover 3; the tank cover 3 slides on the three support pillars 31; the tank cover 3 is threadedly connected to the threaded rod 32, and a rotating block 33 is fixedly connected to the top of the threaded rod 32.

[0061] When the threaded rod 32 provided by the present invention is used, firstly rotate the rotating block 33, the rotating block 33 drives the threaded rod 32 to rotate, the threaded rod 32 drives the groove cover 3 to move, the groove cover 3 slides on the support column 31 during the movement, the support column 31 limits the groove cover 3 to move in the vertical direction, the groove cover 3 drives the partition plate 34 to move, the partition plate 34 moves to the position of the strip steel and stops moving.

[0062] Furthermore, such as Figure 2 As shown, the bottom of the drying box 2 is sloping; the side wall of the rinsing tank 1 is provided with a drainage hole 15; the drainage hole 15 is fitted with the bottom of the drying box 2.

[0063] When the drain hole 15 provided by the present invention is in use, residual pickling liquid on the surface of the strip steel falls to the bottom of the drying box 2. The bottom of the drying box 2 is set in a sloping platform shape to facilitate the flow of pickling liquid. The pickling liquid flows into the rinsing tank 1 through the drain hole 15.

[0064] Furthermore, such as Figure 3 and Figure 6 As shown, one end of a filter plate 11 is rotatably connected to the side wall of the rinsing tank 1 via a rotating shaft; four sliding columns 13 are slidably connected to the other end of the filter plate 11; a side plate 12 is fixedly connected to the bottom of the four sliding columns 13; the side plate 12 is fixedly connected to the inner side wall of the rinsing tank 1; a spring 14 is sleeved on the outer side of each sliding column 13; the spring 14 is fixedly connected between the filter plate 11 and the side plate 12.

[0065] When the filter plate 11 provided by the present invention is in use, the pickling liquid and debris impurities fall onto the filter plate 11. Under the action of the filter plate 11, the pickling liquid and debris impurities are separated. During the process of falling onto the filter plate 11, the filter plate 11 is compressed. Under the action of the spring 14, the filter plate 11 swings back and forth around the rotating shaft, which facilitates the filtration of debris impurities and makes it less likely to clog the filter plate 11.

[0066] Working principle: First, the strip steel is passed through the rinsing tank 1. Liquid is delivered to the rinsing tank 1 via the liquid delivery pipe 4 for pickling. A baffle 34 is installed in the rinsing tank 1 to effectively isolate the front-end contaminants. Then, the strip steel passes out of the rinsing tank 1 and enters the drying chamber 2. The cylinder is activated, and the cylinder outputs gas into the drying chamber 2 through the air outlet pipe 22 and the air blowing pipe 23. The gas is blown onto the surface of the strip steel for air drying, dispersing the acid liquid carried out and preventing the formation of yellow spots on the strip steel surface. During the drying process, the first motor 27 is activated. The first motor 27 drives the bidirectional ball screw 29 to rotate through the output shaft. The bidirectional ball screw 29 drives the moving plate 21. 1. Moving in the opposite direction, wherein a ball nut seat is provided at the connection between the bidirectional ball screw 29 and the moving plate 211, ensuring the radial movement of the moving plate 211. During the movement, the moving plate 211 slides on the guide rod 210, which limits the moving plate 211 in the vertical direction. The moving plate 211 drives the rack 26 to move in the opposite direction, the rack 26 drives the first gear 25 to rotate in the opposite direction, the gear drives the air outlet pipe 22 to reciprocate in the opposite direction, the air outlet pipe 22 drives the blowing pipe 23 to reciprocate in the opposite direction, and the blowing pipe 23 oscillates back and forth, blowing towards the belt. The steel strip is dried quickly by expanding its drying range. Each air duct 23 is equipped with an air valve 24, which can be opened according to the strip width to prevent gas leakage and save energy. The second motor 5 is activated, and its output shaft drives a middle squeezing roller 6 via a roller shaft. Simultaneously, it drives the third and fourth rotating rollers 56 and 57. During rotation, the third rotating roller 56 drives the first belt 52, which in turn drives the first rotating roller 54. The first rotating roller 54, via a roller shaft, drives the connected squeezing roller 6. The fourth rotating roller 57… During rotation, the fourth rotating wheel 57 drives the second belt 53 to rotate, the second belt 53 drives the second rotating wheel 55 to rotate, and the second rotating wheel 55 drives the connected squeezing roller 6 to rotate through the roller shaft, realizing the function of the three upper squeezing rollers 6 rotating simultaneously; when the three upper squeezing rollers 6 rotate, they drive the second gear 61 through the roller shaft. Since the second gear 61 meshes with the third gear 62, the second gear 61 drives the third gear 62 to rotate, and the third gear 62 drives the three lower squeezing rollers 6 to rotate through the roller shaft, realizing the movement of the upper and lower sets of squeezing rollers 6 in opposite directions, realizing the function of squeezing the pickling liquid on the surface of the strip steel.

[0067] Obviously, the above embodiments are merely illustrative examples for clarity and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for preventing rusting of a steel strip surface, comprising: Rinse tank (1); A drying box (2) is fixed to one side of the rinsing tank (1); A tank cover (3) is installed on top of the rinsing tank (1); Rotate the multiple infusion tubes (4) connected to the inside of the rinsing tank (1); Six partitions (34) are fixed to the inner wall of the groove cover (3); A drying unit is installed inside the drying oven (2), the drying unit being used to dry the acid solution on the surface of the strip steel; The drying unit is characterized by the following features: the drying unit includes two air outlet pipes (22) rotatably connected to the inner wall of the drying chamber (2) via bearings; each air outlet pipe (22) is connected to and fixed with multiple air blowers (23); each air blower (23) is provided with a flat hole; each air blower (23) is provided with an air valve (24); each air outlet pipe (22) is connected to a cylinder; one end of each air outlet pipe (22) extends to the outside of the drying chamber (2) and is fixedly connected with a first gear (25); each side of the first gear (25) is provided with a rack (26), and each rack (26) meshes with the corresponding first gear (25); each rack (26) is provided with a drive mechanism; the drying chamber (2) is provided with a discharge port (21) on the side away from the rinsing tank (1). The drive mechanism includes two fixed plates (28) fixed to the drying box (2); a first motor (27) is fixed to one of the fixed plates (28); the output shaft of the first motor (27) is rotatably connected to the fixed plate (28) through a bearing, and a bidirectional ball screw (29) is fixed to the output shaft of the first motor (27); the bidirectional ball screw (29) is rotatably connected to the fixed plate (28) through a bearing; two movable plates (211) are threadedly connected to the bidirectional ball screw (29); the movable plates (211) are symmetrically arranged on the bidirectional ball screw (29), and the inner sidewalls of the movable plates (211) are all fixed to the outer sidewalls of the rack (26); two guide rods (210) are slidably connected to the movable plates (211), and both ends of the guide rods (210) are fixed to the fixed plate (28).

2. The device for preventing rust on the surface of steel strip according to claim 1, characterized in that: Nine infusion tubes (4) are provided, with three infusion tubes (4) forming a group; multiple nozzles (41) are connected and fixed to each infusion tube (4); each nozzle (41) is equipped with a solenoid valve (42); the spray angle of each nozzle (41) is set to 30°.

3. The device for preventing rust on the surface of steel strip according to claim 2, characterized in that: Three storage tanks (43) are fixedly connected to the outside of the rinsing tank (1); one end of the infusion pipe (4) extends to the outside of the rinsing tank (1) and is fixedly connected to the storage tank (43); one end of the outlet pipe (44) is fixedly connected to the bottom of one of the storage tanks (43); the other end of the outlet pipe (44) is fixedly connected to the first liquid tank (45); the first liquid tank (45) contains hydrochloric acid; the bottoms of the other two storage tanks (43) are fixedly connected to one end of the three-way pipe (46); the other end of the three-way pipe (46) is fixedly connected to the second liquid tank (47); the second liquid tank (47) contains demineralized water; water pumps are installed on both the outlet pipe (44) and the three-way pipe (46).

4. The anti-rust device for steel strip surface according to claim 3, characterized in that: The rinsing tank (1) has two conveying holes (71); each conveying hole (71) is rotatably connected to two guide rollers (7) via bearings; the inner wall of the rinsing tank (1) is rotatably connected to six squeezing rollers (6) via bearings; two adjacent squeezing rollers (6) are arranged vertically; the inner side wall of the rinsing tank (1) is provided with rollers; the squeezing rollers (6) are all located between the rollers; the partitions (34) are all located on both sides of the squeezing rollers (6).

5. The anti-rust device for steel strip surface according to claim 4, characterized in that: An L-shaped plate (51) is fixed to the outer wall of the rinsing tank (1); a second motor (5) is fixed to the L-shaped plate (51); the output shaft of the second motor (5) is fixed to the roller shaft of a middle squeezing roller (6); a second rotating wheel (55) and a third rotating wheel (56) are fixed to the roller shaft of the squeezing roller (6); a first rotating wheel (54) is fixed to the roller shaft of one of the squeezing rollers (6); a second rotating wheel (55) is fixed to the roller shaft of the other squeezing roller (6); one end of a first belt (52) is sleeved on the outer side of the first rotating wheel (54); the other end of the first belt (52) is sleeved on the outer side of the third rotating wheel (56); one end of a second belt (53) is sleeved on the outer side of the second rotating wheel (55); the other end of the second belt (53) is sleeved on the outer side of the fourth rotating wheel (57).

6. The device for preventing rust on the surface of steel strip according to claim 5, characterized in that: The upper three squeezing rollers (6) are each fixed with a second gear (61); the other three squeezing rollers (6) are each fixed with a third gear (62); the second gear (61) meshes with the lower third gear (62).

7. The device for preventing rust on the surface of steel strip according to claim 6, characterized in that: The top of the rinsing tank (1) is fixedly connected to three support pillars (31); the top of the rinsing tank (1) is rotatably connected to a threaded rod (32) via a bearing; the support pillars (31) and the threaded rod (32) are located at the four corners of the tank cover (3); the tank cover (3) slides on the three support pillars (31); the tank cover (3) is threadedly connected to the threaded rod (32), and a rotating block (33) is fixedly connected to the top of the threaded rod (32).

8. The device for preventing rust on the surface of steel strip according to claim 7, characterized in that: The bottom of the drying box (2) is sloping; the side wall of the rinsing tank (1) is provided with a drainage hole (15); the drainage hole (15) is fitted with the bottom of the drying box (2).

9. The anti-rust device for steel strip surface according to claim 8, characterized in that: One end of a filter plate (11) is rotatably connected to the side wall of the rinsing tank (1) via a rotating shaft; four sliding columns (13) are slidably connected to the other end of the filter plate (11); a side plate (12) is fixedly connected to the bottom of the four sliding columns (13); the side plate (12) is fixedly connected to the inner side wall of the rinsing tank (1); springs (14) are sleeved on the outer side of each sliding column (13); the springs (14) are fixedly connected between the filter plate (11) and the side plate (12).

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