Double-descaling-ring device for hot-rolled steel billet

Abstract

The utility model belongs to the technical field of metal rolling equipment, particularly relates to a double-descaling-ring device for hot-rolled steel billets, and aims to solve the problems that in the prior art, the adaptation to the surface radians of the steel billets of different specifications is difficult, loose scale caused by high-pressure spraying is easy to remain on the surfaces of the steel billets, and water stains on the surfaces of the steel billets cannot be quickly dried. According to the scheme, the conveying device comprises a conveying frame, a plurality of conveying rollers are rotationally installed in the conveying frame, supporting legs are fixedly installed on the left side and the right side of the bottom of the conveying frame, a first supporting frame and a second supporting frame are fixedly installed on the top of the conveying frame, the first supporting frame is located on the left side of the second supporting frame, and a storage box is fixedly installed on the top of the first supporting frame; the high-pressure spraying mechanism is arranged at the bottom of the first supporting frame and used for spraying hot-rolled steel billets. The high-pressure spraying device can adapt to the radians of the surfaces of the steel billets of different specifications, iron oxide scales which are loosened after high-pressure spraying are prevented from remaining on the surfaces of the steel billets, and water stains on the surfaces of the steel billets are quickly blown dry.

Description

Technical Field

[0001] This application relates to the field of metal rolling equipment technology, and in particular to a double descaling ring device for hot-rolled steel billets. Background Technology

[0002] In the production of hot-rolled steel billets, primary, secondary, and tertiary iron oxide scales are generated on the surface of the billets after high-temperature heating. If these scales are not thoroughly removed, they will be pressed into the surface of the steel during rolling, forming defects such as pitting and cracks. This seriously affects the surface quality of products such as automotive panels and high-end pipeline steel, and also exacerbates roll wear, increases downtime maintenance costs, and restricts the improvement of yield. Traditional single descaling ring devices have problems such as fixed spray angle, poor adaptability to different specifications of steel billets, and incomplete descaling of special materials. Even if the water pressure is increased, it is difficult to completely eliminate stubborn iron oxide scale residues, and it is easy to cause water waste and equipment failure. In order to solve this industry pain point and meet the needs of modern steel rolling for efficient descaling, flexible adaptation, quality improvement and cost reduction, the double descaling ring device has emerged.

[0003] CN217165828U discloses a double descaling ring device for hot-rolled steel billets, comprising a descaling box, a conveyor roller, and a water-blocking chain. The descaling box is located above the conveyor roller, and the water-blocking chain is located at the inlet and outlet of the descaling box. Two descaling rings are installed inside the descaling box, and the descaling rings are connected to a descaling water pipe via flanges. An opening is provided on the side or top of the descaling box at the installation position of the descaling rings, and a movable sealing baffle is installed at the opening. This double descaling ring device for hot-rolled steel billets adds a set of adjustable and easily replaceable descaling rings. By spraying the hot-rolled steel billets with the double descaling rings, it achieves efficient and rapid removal of iron oxide scale from the surface of the steel billets, improving product surface quality and yield. This utility model improves the descaling effect, product quality, reduces the concentrated accumulation of iron scale, and reduces the impact of the sprayed pressurized water on the equipment transmission.

[0004] CN109420724A discloses a large-scale ring die descaling device, including an active roller, a right descaling ring, a left descaling ring, a descaling seat, a hydraulic cylinder, a lower conical roller, an upper conical roller, a ring, and a core roller. The active roller and core roller are placed on both sides of the ring, the lower conical roller and upper conical roller are placed at the upper and lower ends of the ring, and the descaling seat is placed below the ring. The right and left descaling rings are mounted on the descaling seat, and the hydraulic cylinder is mounted at one end of the descaling seat. The descaling device can move as the diameter of the ring increases through the hydraulic cylinder. A descaling head is installed on one side and the top of the right descaling ring body, and a fixing head is machined at one end of the descaling ring body. A water channel is machined inside the descaling seat body, and two connecting holes are machined on the descaling seat body. A connecting head is installed at one end of the descaling seat body, and a water inlet pipe is installed on one side of the descaling seat body. This device can remove the iron oxide scale generated on the billet in a timely manner, improving product quality, and is convenient, fast, and greatly increases cleaning efficiency.

[0005] In the existing technology, it is difficult to adapt to the surface curvature of steel billets of different specifications. High-pressure spraying causes loose iron oxide scale to easily remain on the surface of the steel billet, and water stains on the surface of the steel billet cannot be dried quickly. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in adapting to the surface curvature of steel billets of different specifications, the tendency for loosened iron oxide scale to remain on the surface of steel billets due to high-pressure spraying, and the inability to quickly dry water stains on the surface of steel billets. Therefore, a double descaling ring device for hot-rolled steel billets is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A double descaling ring device for hot-rolled steel billets, comprising:

[0009] The transport frame includes multiple transport rollers rotatably mounted inside, support legs fixedly mounted on the left and right sides of its bottom, and support frame one and support frame two fixedly mounted on its top. Support frame one is located to the left of support frame two, and a storage box is fixedly mounted on the top of support frame one. The transport frame also includes:

[0010] A high-pressure spraying mechanism is installed at the bottom of the support frame and is used to spray hot-rolled steel billets;

[0011] The collection box is fixedly installed at the bottom of the transport frame. The collection box is located below the support frame. There is a through hole 2 between the collection box and the transport frame. Square barrels are fixedly installed on the top left and right sides of the transport frame. There are two square sliding grooves on the top of the transport frame.

[0012] The vibration mechanism is located inside the transport frame;

[0013] The drying and blowing mechanism is located at the bottom of the second support frame and is used to dry and blow away the surface of the hot-rolled steel billet.

[0014] The dustproof mechanism is located at the bottom of the second support frame.

[0015] Preferably, the high-pressure spraying mechanism includes a water pump installed inside the storage tank, a connecting pipe fixedly installed at the output end of the water pump, a spraying box fixedly installed at the bottom of the connecting pipe, a plurality of nozzles fixedly installed at the bottom end of the spraying box, a drive motor installed inside the support frame, a rotating shaft fixedly installed on the output shaft of the drive motor, and the outside of the rotating shaft being rotatably connected to the inside of the support frame.

[0016] Preferably, a circular rack is rotatably mounted inside the support frame, a gear is fixedly mounted outside the rotating shaft, the circular rack meshes with the gear, a connecting plate is fixedly mounted at the bottom of the circular rack, the bottom side of the connecting plate is fixedly connected to the top side of the spray box, and the connecting plate is rotatably connected to the inside of the support frame.

[0017] Preferably, the vibration mechanism includes a first bevel gear fixedly installed on the outside of the rotating shaft, the first bevel gear meshing with a second bevel gear, a rotating rod fixedly installed on the rear side of the second bevel gear, the outside of the rotating rod being rotatably connected to the inside of the support frame, a third bevel gear fixedly installed on the outside of the rotating rod, the third bevel gear meshing with a fourth bevel gear, a rotating rod fixedly installed at the bottom of the fourth bevel gear, the outside of the rotating rod being rotatably connected to the inside of the support frame and the inside of the transport frame, and a fifth bevel gear fixedly installed on the outside of the rotating rod.

[0018] Preferably, the fifth bevel gear meshes with two sixth bevel gears. A rotating rod 2 is fixedly mounted at one end of each of the two sixth bevel gears. The exterior of each of the two rotating rods 2 is rotatably connected to the interior of the transport frame. A first sprocket is fixedly mounted on the exterior of each of the two rotating rods 2. Both first sprockets mesh with chains. Both chains mesh with second sprockets. A rotating shaft is fixedly mounted on each of the two second sprockets. The exterior of each of the two rotating shafts is rotatably connected to the interior of the transport frame. A cam is fixedly mounted on the exterior of each of the two rotating shafts. A cam groove is provided on the exterior of each of the two cams. A reciprocating rod is slidably mounted on the exterior of each of the two cam grooves. A connecting plate 2 is fixedly mounted on the top side of each of the two connecting plates 2. An L-shaped vibrating plate is fixedly mounted on the top side of each of the two connecting plates 2. The two connecting plates 2 are slidably connected to the transport frame. The two L-shaped vibrating plates are slidably connected to two square sliding grooves and to square buckets, respectively.

[0019] Preferably, the drying and blowing mechanism includes a second drive motor disposed at the center of the second support frame, the output shaft of the second drive motor is fixedly mounted with fan blades, and the bottom of the second support frame is provided with a through hole.

[0020] Preferably, the dustproof mechanism includes a dual-head motor disposed on the left and right sides inside the support frame two. Both output shafts of the dual-head motor are fixedly mounted with screws, and the exterior of both screws are rotatably connected to the interior of the support frame two.

[0021] Preferably, each of the two screws is threadedly connected to a connecting block 1, and each of the two connecting blocks 1 is slidably connected to the inside of the support frame 2. Each of the two connecting blocks 1 is fixedly installed with a door curtain at its bottom, and the top side of each of the two door curtains is slidably connected to the support frame 2.

[0022] The beneficial effects of the double descaling ring device for hot-rolled steel billets described in this utility model are as follows:

[0023] Because of the high-pressure spraying mechanism, 15-20MPa high-pressure water is output by the water pump and formed into a high-speed water jet through multiple nozzles on the spray box. In conjunction with the drive motor, the gear and the circular rack mesh to realize the spraying box rotation spraying. It not only uses the high pressure impact to directly loosen the iron oxide scale, but also accelerates the scale cracking through the thermal explosion effect of the red-hot steel billet meeting the cold water, so as to achieve full surface coverage and scale removal of the steel billet without blind spots.

[0024] Because of the vibration mechanism, the cam, reciprocating rod and L-shaped vibration plate are driven by multiple sets of bevel gears driven by the drive motor to vibrate up and down. This can peel off the loose iron oxide scale that is still attached to the surface of the steel billet after high-pressure spraying, and thoroughly remove the residual iron scale. This prevents it from being pressed into the steel matrix during subsequent rolling, and further improves the descaling qualification rate. At the same time, the detached iron scale flows into the collection box with the wastewater through the through hole 2 for centralized recycling, reducing the impact of iron scale accumulation on equipment operation.

[0025] Because of the drying and blowing mechanism, the fan blades are driven by the second drive motor to generate a high-speed airflow, which is blown onto the surface of the descaled steel billet through the first through hole. This can quickly dry the residual water stains, prevent the steel billet from oxidizing and rusting due to water stains during the cooling process, and at the same time avoid water stains from being carried into the subsequent rolling mill, which would cause the rolls to slip, thus ensuring the stability of the rolling process and providing clean and dry surface conditions for the subsequent processing of steel.

[0026] Because of the dustproof mechanism, the screw is driven by a dual-head motor to rotate, which causes the connecting block one and the door curtain to slide open. This effectively blocks the entrance and exit of the support frame two, preventing dust and impurities in the outside air from contaminating the surface of the descaled steel billet. It also reduces the outward leakage of airflow and water mist during the drying process, protecting the surrounding electrical equipment from water mist corrosion, and improving the workshop operating environment.

[0027] This invention can adapt to the surface curvature of steel billets of different specifications, prevent loose iron oxide scale from remaining on the surface of the steel billet after high-pressure spraying, and quickly dry water stains on the surface of the steel billet. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a double descaling ring device for hot-rolled steel billets proposed in this utility model;

[0029] Figure 2 This is a top view of the structure of a double descaling ring device for hot-rolled steel billets proposed in this utility model;

[0030] Figure 3 This is a rear view structural schematic diagram of a double descaling ring device for hot-rolled steel billets proposed in this utility model;

[0031] Figure 4 This is a schematic diagram of the dust prevention mechanism of a double descaling ring device for hot-rolled steel billets proposed in this utility model;

[0032] Figure 5 This utility model proposes a double descaling ring device for hot-rolled steel billets. Figure 3 Enlarged structural diagram of section A;

[0033] Figure 6 This utility model proposes a double descaling ring device for hot-rolled steel billets. Figure 3 Enlarged structural diagram of section B;

[0034] Figure 7 This utility model proposes a double descaling ring device for hot-rolled steel billets. Figure 3 Enlarged structural diagram of section C;

[0035] Figure 8 This utility model proposes a double descaling ring device for hot-rolled steel billets. Figure 3 A magnified structural diagram of part D in the middle.

[0036] Reference numerals: 1. Transport frame; 2. Support leg; 3. Transport roller; 4. Collection box; 5. Support frame one; 6. Support frame two; 7. Storage box; 8. Door curtain; 9. Water pump; 10. Spraying box; 11. Connecting plate one; 12. Circular rack; 13. Rotating shaft; 14. Gear; 15. First bevel gear; 16. Second bevel gear; 17. Rotating rod; 18. Third bevel gear; 19. Fourth bevel gear; 20. Rotating rod one; 21. Fifth bevel gear; 22. Sixth bevel gear; 23. Rotating rod two; 24. First sprocket; 25. Chain; 26. Second sprocket; 27. Rotating shaft; 28. Cam; 29. ​​Connecting plate two; 30. L-shaped vibrating plate; 31. Square barrel; 32. Square chute; 33. Drive motor two; 34. Fan blade; 35. Double-headed motor; 36. Screw; 37. Connecting block one. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Example 1:

[0039] Reference Figures 1-8 A double descaling ring device for hot-rolled steel billets, comprising:

[0040] The transport frame 1 has multiple transport rollers 3 internally mounted for rotation. The transport frame 1 is made of welded carbon structural steel. The transport rollers 3 are 45# steel with surface quenching treatment. Support legs 2 are fixedly installed on the left and right sides of the bottom of the transport frame 1. The support legs 2 are also made of carbon structural steel. Support frame 1 5 and support frame 2 6 are fixedly installed on the top of the transport frame 1. Support frame 1 5 is located to the left of support frame 2 6. Both support frame 1 5 and support frame 2 6 are welded carbon structural steel components. A storage box 7, made of 304 stainless steel, is fixedly installed on the top of support frame 1 5. The transport frame 1 also includes:

[0041] A high-pressure spraying mechanism is installed at the bottom of support frame 5 and is used to spray hot-rolled steel billets;

[0042] The collection box 4 is fixedly installed at the bottom of the transport frame 1. The collection box 4 is made of carbon structural steel with wear-resistant lining. The collection box 4 is located below the support frame 5. A through hole 2 is provided between the collection box 4 and the transport frame 1. Square barrels 31 are fixedly installed on the top left and right sides of the transport frame 1. The square barrels 31 are made of carbon structural steel. Two square slids 32 are provided on the top of the transport frame 1.

[0043] The vibration mechanism is installed inside the transport frame 1;

[0044] The drying and blowing mechanism is located at the bottom of the support frame 26 and is used to dry and blow the surface of the hot-rolled steel billet.

[0045] The dustproof mechanism is located at the bottom of support frame 26.

[0046] In this embodiment, the high-pressure spraying mechanism includes a water pump 9 installed inside the storage tank 7. A connecting pipe is fixedly installed at the output end of the water pump 9, and a spray box 10 is fixedly installed at the bottom of the connecting pipe. The spray box 10 is made of stainless steel 304. Multiple nozzles are fixedly installed at the bottom of the spray box 10. A drive motor is installed inside the support frame 5. A rotating shaft 13 is fixedly installed on the output shaft of the drive motor 1. The rotating shaft 13 is made of 45# steel with heat treatment. The outside of the rotating shaft 13 is rotatably connected to the inside of the support frame 5.

[0047] In this embodiment, a circular rack 12 is rotatably installed inside the support frame 5. The circular rack 12 is a quenched and tempered 40Cr alloy structural steel component. A gear 14 is fixedly installed on the outside of the rotating shaft 13. The circular rack 12 and the gear 14 mesh with each other. A connecting plate 11 is fixedly installed at the bottom of the circular rack 12. The connecting plate 11 is made of carbon structural steel. The bottom side of the connecting plate 11 is fixedly connected to the top side of the spray box 10. The connecting plate 11 is rotatably connected to the inside of the support frame 5. Through the meshing transmission of the gear 14 and the circular rack 12, the spray box 10 is driven to rotate in a circle, realizing high-pressure descaling with no dead angles. Combined with the impact of 15-20MPa high-pressure water jet and the thermal explosion effect, the iron oxide scale on the surface of the steel billet is quickly loosened.

[0048] In this embodiment, the vibration mechanism includes a first bevel gear 15 fixedly installed on the outside of the rotating shaft 13, the first bevel gear 15 meshing with a second bevel gear 16, a rotating rod 17 fixedly installed on the rear side of the second bevel gear 16, the outside of the rotating rod 17 being rotatably connected to the inside of the support frame 5, a third bevel gear 18 fixedly installed on the outside of the rotating rod 17, the third bevel gear 18 meshing with a fourth bevel gear 19, a rotating rod 20 fixedly installed at the bottom of the fourth bevel gear 19, the outside of the rotating rod 20 being rotatably connected to the inside of the support frame 5 and the inside of the transport frame 1, and a fifth bevel gear 21 fixedly installed on the outside of the rotating rod 20.

[0049] In this embodiment, the fifth bevel gear 21 meshes with two sixth bevel gears 22. A rotating rod 23 is fixedly mounted on one end of each of the two sixth bevel gears 22. The exterior of each rotating rod 23 is rotatably connected to the interior of the transport frame 1. A first sprocket 24 is fixedly mounted on the exterior of each rotating rod 23. Both first sprockets 24 mesh with chains 25. Both chains 25 mesh with second sprockets 26. A rotating shaft 27 is fixedly mounted on each of the two second sprockets 26. The exterior of each rotating shaft 27 is rotatably connected to the interior of the transport frame 1. A cam 28 is fixedly mounted on the exterior of each rotating shaft 27. A cam groove is provided on the exterior of each cam groove, and the exterior of each cam groove is slidably mounted. There are reciprocating rods, and connecting plates 29 are fixedly installed on the top sides of the two reciprocating rods. The connecting plates 29 are made of carbon structural steel. L-vibrating plates 30 are fixedly installed on the top sides of the two connecting plates 29. The L-vibrating plates 30 are made of low alloy high strength steel with a wear-resistant layer welded on the surface. The two connecting plates 29 are slidably connected to the transport frame 1. The two L-vibrating plates 30 are slidably connected to the two square slides 32 respectively. The two L-vibrating plates 30 are slidably connected to the square bucket 31 respectively. The reciprocating rods are driven by the rotation of the cam 28 to drive the L-vibrating plates 30 to vibrate up and down, and to perform secondary peeling of the loose iron oxide scale after high-pressure spraying to ensure thorough descaling. The detached iron oxide scale flows into the collection box 4 with the wastewater through the through hole 2 for centralized recycling.

[0050] In this embodiment, the drying and blowing mechanism includes a second drive motor 33 located at the center of the support frame 2 6. The output shaft of the second drive motor 2 33 is fixedly mounted with a fan blade 34. The bottom of the support frame 2 6 is provided with a through hole 1. The second drive motor 2 33 drives the fan blade 34 to rotate and generate a high-speed airflow, which is blown onto the surface of the descaled steel billet through the through hole 1 to quickly dry the residual water stains, prevent the steel billet surface from oxidizing and rusting, and at the same time prevent water stains from being carried into the subsequent rolling mill, causing the rolls to slip and ensuring rolling stability.

[0051] In this embodiment, the dustproof mechanism includes a dual-head motor 35 disposed on the left and right sides inside the support frame 2 6. Both output shafts of the dual-head motor 35 are fixedly mounted with screws 36, and the outside of the two screws 36 is rotatably connected to the inside of the support frame 2 6.

[0052] In this embodiment, both screws 36 are threadedly connected to connecting blocks 37. Both connecting blocks 37 are slidably connected to the inside of the support frame 6. Both connecting blocks 37 are fixedly installed with curtains 8 at their bottoms. The top sides of both curtains 8 are slidably connected to the support frame 6. The screws 36 are driven to rotate by the double-headed motor 35, which drives the connecting blocks 37 to open and close the curtains 8. This not only prevents external dust from contaminating the surface of the descaled steel billet, but also reduces the overflow of water mist and airflow during the drying process, protecting the surrounding electrical equipment and improving the workshop operating environment.

[0053] In this invention, during use, the support legs 2 at the bottom of the transport frame 1 provide stable support. Multiple transport rollers 3 inside the transport frame 1 rotate, conveying the hot-rolled steel billet to be descaled from left to right, sequentially passing through the processing areas corresponding to support frame one 5 and support frame two 6. The water pump 9 inside the storage tank 7 starts, delivering high-pressure water (15-20 MPa) through a connecting pipe to the spray box 10. Multiple nozzles at the bottom of the spray box 10 spray high-speed water jets onto the surface of the red-hot steel billet. Simultaneously, the drive motor one inside support frame one 5 drives the rotating shaft 13 to rotate. The gear 14 outside the rotating shaft 13 meshes with the circular rack 12, driving the circular rack 12 to rotate, which in turn is carried by the connecting plate one 11. The spray box 10 rotates synchronously, allowing the high-pressure water from the nozzles to cover the entire surface of the steel billet, initially impacting and loosening the iron oxide scale. The difference in thermal expansion and contraction between the red-hot steel billet and the cold water causes the iron oxide scale to "crack," further reducing its bonding force with the steel billet matrix. Vibration-enhanced descaling: The rotating shaft 13 synchronously drives the external first bevel gear 15, which in turn drives the second bevel gear 16. The second bevel gear 16 drives the rotating rod 17, which in turn drives the third bevel gear 18. The third bevel gear 18 drives the fourth bevel gear 19, which in turn drives the rotating rod 120. The rotating rod 120 then drives the... The fifth bevel gear 21 rotates, which drives the two sixth bevel gears 22 to rotate. The two sixth bevel gears 22 drive the two rotating rods 23 to rotate. The rotating rods 23 drive the first sprocket 24 to rotate. The first sprocket 24 drives the second sprocket 26 and the rotating shaft 27 to rotate synchronously via the chain 25. The rotating shaft 27 drives the cam 28 to rotate. Its cam groove drives the reciprocating rod to move up and down. The reciprocating rod drives the L-shaped vibrating plate 30 to vibrate up and down in the square chute 32 and square barrel 31 via the connecting plate 29, so that the loose iron oxide scale on the surface of the steel billet is completely removed. The removed iron scale and wastewater flow into the collection box 4 at the bottom through the through hole 2 on the transport frame 1 for collection. Drying and dehydration: The descaled steel billet is conveyed by the transport roller 3 to the bottom of the support frame 2 6. The drive motor 2 33 inside the support frame 2 6 starts, driving the fan blade 34 to rotate. The airflow generated by the fan blade 34 blows onto the surface of the steel billet through the through hole 1 at the bottom of the support frame 2 6, drying the residual water stains and preventing the steel billet surface from rusting or affecting subsequent rolling processes. Dust prevention and protection: The double-headed motor 35 inside the support frame 2 6 starts, driving the two screws 36 to rotate. The connecting block 1 37 outside the screws 36 slides along the inside of the support frame 2 6, synchronously driving the curtain 8 to unfold and block the entrance and exit of the support frame 2 6, preventing external dust from entering and contaminating the surface of the steel billet, and reducing the outward overflow of airflow and water mist.

[0054] Example 2:

[0055] The difference between this embodiment and embodiment one is that anti-slip pads are fixedly installed at the bottom of both support legs 2. The anti-slip pads are made of highly elastic and wear-resistant rubber material, and their bottom surface is provided with staggered diamond anti-slip patterns, which can effectively increase the friction between the support legs 2 and the ground.

[0056] Example 3:

[0057] The difference between this embodiment and embodiment one is that a filter screen is installed inside the through hole one. The fan blade 34 rotates and generates airflow to effectively intercept small impurities, preventing impurities from being blown to the surface of the billet by the airflow and causing secondary pollution. This ensures that the surface of the dried billet remains clean and further improves the overall quality of the descaling process.

[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double descaling ring device for hot-rolled steel billets, characterized in that: include: The transport frame (1) has multiple transport rollers (3) rotatably mounted inside it. Support legs (2) are fixedly mounted on the left and right sides of the bottom of the transport frame (1). Support frame one (5) and support frame two (6) are fixedly mounted on the top of the transport frame (1). Support frame one (5) is located to the left of support frame two (6). A storage box (7) is fixedly mounted on the top of support frame one (5). The transport frame also includes: The high-pressure spraying mechanism is located at the bottom of the support frame (5) and is used to spray the hot-rolled steel billet; The collection box (4) is fixedly installed at the bottom of the transport frame (1). The collection box (4) is located below the support frame (5). A through hole (2) is provided between the collection box (4) and the transport frame (1). Square buckets (31) are fixedly installed on the top left and right sides of the transport frame (1). Two square grooves (32) are provided on the top of the transport frame (1). The vibration mechanism is located inside the transport frame (1); The drying and blowing mechanism is located at the bottom of the support frame 2 (6) and is used to dry and blow the surface of the hot-rolled steel billet. The dustproof mechanism is located at the bottom of the support frame 2 (6).

2. The double descaling ring device for hot-rolled steel billets according to claim 1, characterized in that: The high-pressure spraying mechanism includes a water pump (9) installed inside the storage box (7). A connecting pipe is fixedly installed at the output end of the water pump (9). A spray box (10) is fixedly installed at the bottom of the connecting pipe. Multiple nozzles are fixedly installed at the bottom of the spray box (10). A drive motor is installed inside the support frame (5). A rotating shaft (13) is fixedly installed on the output shaft of the drive motor. The outside of the rotating shaft (13) is rotatably connected to the inside of the support frame (5).

3. The double descaling ring device for hot-rolled steel billets according to claim 2, characterized in that: A circular rack (12) is rotatably mounted inside the support frame (5), and a gear (14) is fixedly mounted on the outside of the rotating shaft (13). The circular rack (12) and the gear (14) mesh with each other. A connecting plate (11) is fixedly mounted on the bottom of the circular rack (12). The bottom side of the connecting plate (11) is fixedly connected to the top side of the spray box (10). The connecting plate (11) is rotatably connected to the inside of the support frame (5).

4. The double descaling ring device for hot-rolled steel billets according to claim 2, characterized in that: The vibration mechanism includes a first bevel gear (15) fixedly installed on the outside of the rotating shaft (13), the first bevel gear (15) meshing with a second bevel gear (16), a rotating rod (17) fixedly installed on the rear side of the second bevel gear (16), the outside of the rotating rod (17) being rotatably connected to the inside of the support frame (5), a third bevel gear (18) fixedly installed on the outside of the rotating rod (17), the third bevel gear (18) meshing with a fourth bevel gear (19), a rotating rod (20) fixedly installed at the bottom of the fourth bevel gear (19), the outside of the rotating rod (20) being rotatably connected to the inside of the support frame (5) and the inside of the transport frame (1), and a fifth bevel gear (21) fixedly installed on the outside of the rotating rod (20).

5. A double descaling ring device for hot-rolled steel billets according to claim 4, characterized in that: The fifth bevel gear (21) meshes with two sixth bevel gears (22). A rotating rod (23) is fixedly mounted on one end of each of the two sixth bevel gears (22). The exterior of each of the two rotating rods (23) is rotatably connected to the interior of the transport frame (1). A first sprocket (24) is fixedly mounted on the exterior of each of the two rotating rods (23). Each of the two first sprockets (24) meshes with a chain (25). Each of the two chains (25) meshes with a second sprocket (26). A rotating shaft (27) is fixedly mounted on each of the two second sprockets (26). The exterior of each of the two rotating shafts (27) is connected to the transport frame (1). The internal rotating connection is provided. Cams (28) are fixedly installed on the outside of the two rotating shafts (27). Cam grooves are provided on the outside of the two cams (28). Reciprocating rods are slidably installed on the outside of the two cam grooves. Connecting plates (29) are fixedly installed on the top side of the two reciprocating rods. L-vibrating plates (30) are fixedly installed on the top side of the two connecting plates (29). The two connecting plates (29) are slidably connected to the transport frame (1). The two L-vibrating plates (30) are slidably connected to the two square slide grooves (32) respectively. The two L-vibrating plates (30) are slidably connected to the square bucket (31) respectively.

6. The double descaling ring device for hot-rolled steel billets according to claim 1, characterized in that: The drying and blowing mechanism includes a second drive motor (33) located at the center of the support frame (6), and a fan blade (34) is fixedly installed on the output shaft of the second drive motor (33). A through hole is provided at the bottom of the support frame (6).

7. The double descaling ring device for hot-rolled steel billets according to claim 1, characterized in that: The dustproof mechanism includes a double-headed motor (35) located on the left and right sides inside the support frame two (6). Both output shafts of the double-headed motor (35) are fixedly mounted with screws (36), and the outside of the two screws (36) are rotatably connected to the inside of the support frame two (6).

8. A double descaling ring device for hot-rolled steel billets according to claim 7, characterized in that: Both screws (36) are threaded to the outside of a connecting block (37), both connecting blocks (37) are slidably connected to the inside of the support frame (6), both connecting blocks (37) are fixedly installed with curtains (8) at the bottom, and both curtains (8) are slidably connected to the top of the support frame (6).

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