Hot rolling device with efficient descaling function
By designing a high-efficiency descaling hot rolling device and utilizing the cooperation of components such as impellers and piston rods, the problem of iron oxide scale accumulation was solved, achieving high-efficiency descaling, preventing dead zones in the spraying process and clogging of the filter plate, and improving descaling efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-25
- Publication Date
- 2026-04-03
AI Technical Summary
During hot rolling, iron oxide scale tends to accumulate on the surface of steel slabs that have not been descaled, resulting in reduced descaling efficiency.
A hot rolling device with high efficiency descaling was designed. By setting up components such as impeller, rotating plate, vertical rod and push rod, the device uses the rotation and reciprocating motion of high pressure water flow to prevent the accumulation of iron oxide scale. The reciprocating movement of the nozzle and the vibration of the jet tube are realized through the cooperation of piston rod, piston block and spring, which prevents the jet dead zone and the filter plate from being blocked.
It improves descaling efficiency, prevents iron oxide scale buildup, ensures efficient removal of iron oxide scale, avoids spray dead zones and filter plate clogging, and enhances the effectiveness of descaling operations.
Smart Images
Figure CN121776276A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hot rolling equipment technology, and more specifically, to a hot rolling equipment with high-efficiency descaling. Background Technology
[0002] Hot rolling involves heating metal billets (such as steel ingots and continuously cast billets) to above the recrystallization temperature (usually 1000-1300℃), placing them in the austenitic state. At this point, the metal has good plasticity. Pressure is applied through a rolling mill, causing the metal to undergo plastic deformation at high temperatures, forming plates, profiles, or pipes of the required shape and size. At high temperatures, dynamic recrystallization occurs after the metal is deformed, eliminating work hardening and allowing the material to maintain good plasticity and toughness, thus preventing cracking.
[0003] During hot rolling operations, high-pressure water is typically used for descaling. The principle behind this is the powerful kinetic energy and scouring force generated by the high-pressure water jet, the shear force resulting from the difference in cooling shrinkage rates between the base material and the iron oxide scale layer, and the steam expansion and bursting generated between the water and the base material and iron oxide scale. This causes the iron oxide scale to break into small fragments and rapidly detach from the base surface. However, in actual use, there are still shortcomings. When the iron oxide scale detaches from the steel slab surface, some of it is easily impacted by the water flow and falls onto the surface of the slab that has not been descaled. This leads to an accumulation of iron oxide scale at these descaling points. As the accumulation increases, it hinders the effective impact of subsequent high-pressure water on the steel slab, reducing descaling efficiency and making it difficult to completely remove some of the iron oxide scale. Therefore, improvements are needed. Summary of the Invention
[0004] To overcome the above-mentioned defects, the present invention provides a hot rolling device with high efficiency descaling, which solves the technical problem in the prior art that some iron oxide scale is easy to accumulate on the surface of steel slabs that have not been descaled.
[0005] According to one aspect, at least one embodiment of the present invention provides a hot rolling device with high-efficiency descaling, including a support frame, a conveyor roller movably sleeved inside the support frame, a hot rolling mill fixedly sleeved on the right side inside the support frame, a descaling box fixedly sleeved on the left side inside the support frame, a water inlet valve fixedly sleeved on the upper left rear end of the descaling box, the front end of the water inlet valve penetrating through the descaling box and extending into the interior of the descaling box and fixedly connected to a water inlet pipe, a fixing block fixedly sleeved on the front end of the water inlet pipe, the left end of the fixing block being fixedly connected to the middle of the left inner wall of the descaling box, and the right end of the fixing block being movably sleeved inside the device. A linkage shaft is connected to the movable sleeve. An impeller is fixedly sleeved on the left side of the outer surface of the linkage shaft. The outer surface of the impeller is movably sleeved with the inner surface of the fixed block. A rotating plate is fixedly sleeved on the right side of the outer surface of the linkage shaft. A round rod is fixedly sleeved inside the rear end of the rotating plate. A vertical rod is movably sleeved on the right side of the outer surface of the round rod. The left end of the vertical rod is movably connected to the right end of the rotating plate. A bottom rod is fixedly installed in the middle of the bottom end of the vertical rod. A push rod is movably sleeved on the bottom of the outer surface of the bottom rod. A fixed shaft is movably sleeved inside the push rod. The top end of the fixed shaft is fixedly connected to the left side of the top of the inner surface of the descaling box.
[0006] As a preferred embodiment of the present invention, a water outlet pipe is fixedly sleeved at the front end of the fixing block, and the front end of the water outlet pipe is fixedly connected to the inner wall of the front side of the descaling box. A connecting rod is fixedly sleeved at the front side of the bottom end of the water outlet pipe, and a spray pipe is fixedly sleeved at the bottom end of the connecting rod. The front and rear ends of the spray pipe are respectively fixedly connected to the inner walls of the front and rear sides of the descaling box. A filter plate located below the spray pipe is fixedly sleeved on the inner surface of the descaling box. A slag collection box is fixedly installed at the bottom of the right end of the descaling box, and the left end of the slag collection box is movably connected to the right end of the filter plate.
[0007] As a preferred embodiment of the present invention, a first piston rod is fixedly installed at the middle of the front end of the vertical rod, a first piston block is fixedly installed at the front end of the first piston rod, a first cylinder is movably sleeved on the outer surface of the first piston block, and the front end of the first cylinder is fixedly connected to the front inner wall of the descaling box.
[0008] As a preferred embodiment of the present invention, an inclined tube is fixedly sleeved on the front side of the right end of the first cylinder, and a second cylinder is fixedly sleeved on the right end of the inclined tube. The front end of the second cylinder is fixedly connected to the inner wall of the front side of the descaling box.
[0009] As a preferred embodiment of the present invention, a slider is movably sleeved on the front side inside the second cylinder, a first spring is fixedly installed at the rear end of the slider, the other end of the first spring is fixedly connected to the rear inner wall of the second cylinder, a connecting rod is fixedly installed at the middle of the rear end of the slider, a long plate is fixedly installed at the rear end of the connecting rod, and the front end of the long plate is movably connected to the rear end of the second cylinder.
[0010] As a preferred embodiment of the present invention, limit rods are fixedly installed on the upper and lower sides of the front end of the long plate, and a limit plate is fixedly installed on the front end of the limit rods. The inner surface of the limit plate and the outer surface of the second cylinder are movably sleeved together.
[0011] As a preferred embodiment of the present invention, an upper nozzle manifold and a lower nozzle manifold are fixedly installed on the upper and lower sides of the rear end of the long plate, respectively. A water supply pipe is fixedly sleeved at the rear end of both the upper and lower nozzle manifolds. The rear end of the water supply pipe passes through the descaling box and extends to the outside of the descaling box. A flexible hose located outside the descaling box is fixedly sleeved at the rear end of the water supply pipe. The other end of the flexible hose is fixedly connected to the rear end of the water inlet valve.
[0012] As a preferred embodiment of the present invention, a second piston rod is fixedly installed at the middle of the rear end of the vertical rod, a second piston block is fixedly installed at the rear end of the second piston rod, a rectangular body is movably sleeved on the outer surface of the second piston block, the inner surface of the front end of the rectangular body is movably sleeved on the outer surface of the second piston rod, the rear end of the rectangular body is fixedly connected to the rear inner wall of the descaling box, and a vent valve is fixedly installed at the rear end of the rectangular body. The rear end of the vent valve penetrates the descaling box and extends to the outside of the descaling box.
[0013] As a preferred embodiment of the present invention, a jet tube is fixedly sleeved on the front side of the bottom end of the rectangular body, a protective shell is fixedly sleeved on the bottom end of the jet tube, the rear end of the protective shell is fixedly connected to the rear inner wall of the descaling box, a round shaft is fixedly sleeved on the rear side of the bottom end inside the protective shell, a knocking rod is movably sleeved on the outer surface of the round shaft, and the outer surface of the knocking rod is movably sleeved on the inner surface of the protective shell.
[0014] As a preferred embodiment of the present invention, a second spring is fixedly installed on the rear side of the top of the striking rod, and the other end of the second spring is fixedly connected to the top of the inner surface of the protective shell. An auxiliary stop rod located between the jet tube and the second spring is movably connected to the top of the striking rod, and the top of the auxiliary stop rod is fixedly connected to the top of the inner surface of the protective shell.
[0015] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, by setting up an impeller, a rotating plate, a round rod, a vertical rod, and a push rod, when high-pressure water passes through the impeller, it will impact the impeller, causing the impeller to rotate through the linkage shaft, thereby generating a thrust on the outer surface of the round rod against the inner surface of the vertical rod. This pushes the vertical rod and the bottom rod to move back and forth, causing the push rod to swing back and forth around the fixed shaft under the push of the vertical rod and the bottom rod. In this way, the reciprocating push rod can prevent iron oxide scale from accumulating on the surface of the un-descaled steel slab and affecting the descaling operation, thereby improving the descaling efficiency.
[0016] 2. In this invention, by setting a first piston rod, a first piston block, a slider, a first spring, and a long plate, when the vertical rod moves, the first piston rod, which is fixedly connected to the vertical rod, will move along the inner surface of the first cylinder along with the first piston block, thereby pushing the hydraulic oil in the inner cavity of the first cylinder, the inclined tube, and the second cylinder. This forces the slider to move along with the connecting rod, the long plate, the upper nozzle manifold, and the lower nozzle manifold under the pressure of the hydraulic oil, and compress the first spring. When the vertical rod moves outward of the first cylinder along with the first piston rod and the first piston block, the slider, the connecting rod, the long plate, the upper nozzle manifold, and the lower nozzle manifold will return to their original positions under the restoring action of the first spring. In this way, the reciprocating movement of the upper nozzle manifold and the lower nozzle manifold can prevent the occurrence of spray dead angles, thereby further improving the descaling efficiency.
[0017] 3. In this invention, by setting a second piston rod, a second piston block, an air jet tube, a knocking rod, and a second spring, when the vertical rod moves with the second piston rod outwards from the rectangle, the second piston block will move along with it, thereby compressing the air inside the rectangle and forcing the air to be quickly discharged through the air jet tube. The air quickly discharged through the air jet tube will push the knocking rod, causing the knocking rod to rotate and stretch the second spring, thereby causing the knocking rod to strike and vibrate the filter plate. This, in conjunction with the spraying action of the spray pipe, prevents the filter plate from being blocked by iron oxide scale. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.
[0019] Figure 1 This is a schematic diagram of the overall front structure in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the overall rear structure in the embodiment; Figure 3 for Figure 1 A frontal cross-sectional view of the structure in the embodiment; Figure 4 for Figure 1 A schematic cross-sectional view of the side of the descaling box in the embodiment; Figure 5 for Figure 1 A schematic diagram of the internal structure of the descaling box in the embodiment; Figure 6 for Figure 5A cross-sectional view of the inlet pipe in the embodiment; Figure 7 for Figure 5 A cross-sectional view of the vertical rod in the embodiment; Figure 8 for Figure 5 A cross-sectional view of the second cylinder in the embodiment; Figure 9 for Figure 5 A cross-sectional view of the top of the fixing block in the embodiment; Figure 10 for Figure 2 A magnified view of the structure at point A in the middle; Figure 11 for Figure 3 A magnified view of the structure at point B in the middle; Figure 12 for Figure 6 A magnified schematic diagram of the structure at point C in the middle; Figure 13 for Figure 7 A magnified schematic diagram of the local structure at point D; Figure 14 for Figure 7 A magnified schematic diagram of the local structure at point E; Figure 15 for Figure 7 A magnified schematic diagram of the local structure at point F; Figure 16 for Figure 8 A magnified schematic diagram of the local structure at point G; Figure 17 for Figure 9 A magnified schematic diagram of the structure at point H in the middle.
[0020] In the diagram: 1. Support; 2. Conveyor roller; 3. Hot rolling mill; 4. Descaling box; 5. Inlet valve; 6. Inlet pipe; 7. Fixing block; 8. Linkage shaft; 9. Impeller; 10. Rotary plate; 11. Round rod; 12. Vertical rod; 13. Bottom rod; 14. Push rod; 15. Fixing shaft; 16. Outlet pipe; 17. Connecting rod; 18. Spray pipe; 19. Filter plate; 20. Slag collection box; 21. First piston rod; 22. First piston block; 23. First cylinder; 24. 25. Inclined tube; 26. Second cylinder; 27. Slider; 28. First spring; 29. Connecting rod; 30. Long plate; 31. Limiting plate; 32. Limiting rod; 33. Upper nozzle manifold; 34. Lower nozzle manifold; 35. Water supply pipe; 36. Flexible hose; 37. Second piston rod; 38. Second piston block; 39. Rectangular body; 40. Vent valve; 41. Jet nozzle; 42. Protective shell; 43. Round shaft; 44. Knocking rod; 45. Second spring; 46. Auxiliary stop rod. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.
[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] like Figures 1 to 17The diagram illustrates a high-efficiency descaling hot rolling device according to an embodiment of the present invention, comprising a support 1, a conveyor roller 2 movably sleeved inside the support 1, a hot rolling mill 3 fixedly sleeved on the right side inside the support 1, a descaling box 4 fixedly sleeved on the left side inside the support 1, a water inlet valve 5 fixedly sleeved on the upper left rear end of the descaling box 4, the front end of the water inlet valve 5 penetrating through the descaling box 4 and extending into the interior of the descaling box 4 and fixedly connected to a water inlet pipe 6, a fixing block 7 fixedly sleeved on the front end of the water inlet pipe 6, the left end of the fixing block 7 fixedly connected to the middle of the left inner wall of the descaling box 4, and a linkage shaft 8 movably sleeved inside the right end of the fixing block 7. An impeller 9 is fixedly sleeved on the left side of the outer surface of the linkage shaft 8. The outer surface of the impeller 9 is movably sleeved with the inner surface of the fixing block 7. A rotating plate 10 is fixedly sleeved on the right side of the outer surface of the linkage shaft 8. A round rod 11 is fixedly sleeved inside the rear end of the rotating plate 10. A vertical rod 12 is movably sleeved on the right side of the outer surface of the round rod 11. The left end of the vertical rod 12 is movably connected to the right end of the rotating plate 10. A bottom rod 13 is fixedly installed in the middle of the bottom end of the vertical rod 12. A push rod 14 is movably sleeved on the bottom of the outer surface of the bottom rod 13. A fixed shaft 15 is movably sleeved inside the push rod 14. The top end of the fixed shaft 15 is fixedly connected to the left side of the top of the inner surface of the descaling box 4.
[0028] The conveyor roller 2 inside the support 1 rotates synchronously through the cooperation of gears and chains to transport the steel slab. At the same time, a limiting baffle is provided above the conveyor roller 2 to limit the center of the steel slab during transport. The hot rolling mill 3 has two vertically distributed rollers inside, which rotate in opposite directions to perform hot rolling on the steel slab. Since the hot rolling operation of the hot rolling mill 3 is existing technology, it will not be described in detail in this solution. There is a certain distance between the bottom end of the push rod 14 and the top of the steel slab, and the distance is relatively small, so as to ensure that the bottom of the push rod 14 and the top of the steel slab will not be completely in contact. The descaling operation of this invention is for steel slabs of a specified size. In actual operation, the components such as the bottom rod 13 and the push rod 14 can be adaptively adjusted according to the actual size of the steel slab.
[0029] In some examples, a water outlet pipe 16 is fixedly sleeved at the front end of the fixed block 7. The front end of the water outlet pipe 16 is fixedly connected to the inner wall of the front side of the descaling box 4. A connecting rod 17 is fixedly sleeved at the front side of the bottom end of the water outlet pipe 16. A spray pipe 18 is fixedly sleeved at the bottom end of the connecting rod 17. The front and rear ends of the spray pipe 18 are fixedly connected to the inner walls of the front and rear sides of the descaling box 4, respectively. A filter plate 19 located below the spray pipe 18 is fixedly sleeved on the inner surface of the descaling box 4. A slag collection box 20 is fixedly installed at the bottom of the right end of the descaling box 4. The left end of the slag collection box 20 is movably connected to the right end of the filter plate 19.
[0030] The spray pipe 18 is existing equipment, and its specific model can be selected by a person skilled in the art. The left end of the slag collection box 20 is provided with a water filter hole, which is used to drain the water inside the slag collection box 20 into the descaling box 4 and then discharge it through the drain pipe at the bottom of the descaling box 4.
[0031] In some examples, a first piston rod 21 is fixedly installed at the middle of the front end of the vertical rod 12, a first piston block 22 is fixedly installed at the front end of the first piston rod 21, a first cylinder 23 is movably sleeved on the outer surface of the first piston block 22, and the front end of the first cylinder 23 is fixedly connected to the front inner wall of the descaling box 4.
[0032] The inner surface of the first cylinder 23 and the outer surface of the first piston block 22 are both smooth, thus ensuring that the first piston block 22 will not get stuck when it moves along the inner surface of the first cylinder 23. At the same time, the first piston block 22 can also play a sealing role.
[0033] In some examples, the front side of the right end of the first cylinder 23 is fixedly sleeved with an inclined tube 24, the right end of the inclined tube 24 is fixedly sleeved with a second cylinder 25, and the front end of the second cylinder 25 is fixedly connected to the inner wall of the front side of the descaling box 4.
[0034] The shape and specifications of the second cylinder 25 are the same as those of the first cylinder 23. The presence of the inclined tube 24 is to connect the inner cavities of the first cylinder 23 and the second cylinder 25, and the inner cavities of the second cylinder 25, the inclined tube 24 and the first cylinder 23 are filled with hydraulic oil.
[0035] In some examples, a slider 26 is movably sleeved on the front side inside the second cylinder 25, a first spring 27 is fixedly installed at the rear end of the slider 26, the other end of the first spring 27 is fixedly connected to the rear inner wall of the second cylinder 25, a connecting rod 28 is fixedly installed at the middle of the rear end of the slider 26, a long plate 29 is fixedly installed at the rear end of the connecting rod 28, and the front end of the long plate 29 is movably connected to the rear end of the second cylinder 25.
[0036] The second cylinder 25 has a circular hole in the middle of its rear end. The connecting rod 28 is located in the circular hole at the rear end of the second cylinder 25. At the same time, the diameter of the circular hole at the rear end of the second cylinder 25 is slightly larger than the diameter of the connecting rod 28. In addition, the slider 26 also has a sealing function.
[0037] In some examples, limit rods 31 are fixedly installed on the upper and lower sides of the front end of the long plate 29, and a limit plate 30 is fixedly installed on the front end of the limit rods 31. The inner surface of the limit plate 30 and the outer surface of the second cylinder 25 are movably connected.
[0038] The presence of the limiting plate 30 and the limiting rod 31 will provide auxiliary support and limit the movement of the long plate 29, thereby ensuring the stability of the movement of the long plate 29.
[0039] In some examples, an upper nozzle manifold 32 and a lower nozzle manifold 33 are fixedly installed on the upper and lower sides of the rear end of the long plate 29, respectively. A water supply pipe 34 is fixedly sleeved at the rear end of both the upper nozzle manifold 32 and the lower nozzle manifold 33. The rear end of the water supply pipe 34 passes through the descaling box 4 and extends to the outside of the descaling box 4. A flexible hose 35 located outside the descaling box 4 is fixedly sleeved at the rear end of the water supply pipe 34. The other end of the flexible hose 35 is fixedly connected to the rear end of the water inlet valve 5.
[0040] The rear end of the water supply pipe 34 is connected to the high-pressure water supply equipment. Under the impact of high-pressure water, the impeller 9 inside the fixed block 7 can rotate rapidly and the water flow thrust on the impeller 9 is greater than the resistance on the impeller 9. The upper nozzle manifold 32 and the lower nozzle manifold 33 are distributed on the upper and lower sides of the steel slab for descaling operations.
[0041] In some examples, a second piston rod 36 is fixedly installed at the middle of the rear end of the vertical rod 12, a second piston block 37 is fixedly installed at the rear end of the second piston rod 36, a rectangular body 38 is movably sleeved on the outer surface of the second piston block 37, the inner surface of the front end of the rectangular body 38 is movably sleeved on the outer surface of the second piston rod 36, the rear end of the rectangular body 38 is fixedly connected to the rear inner wall of the descaling box 4, and a vent valve 39 is fixedly installed at the rear end of the rectangular body 38. The rear end of the vent valve 39 penetrates the descaling box 4 and extends to the outside of the descaling box 4.
[0042] The presence of the vent valve 39 allows for the flow of air between the inner cavity of the rectangular body 38 and the outside, thereby ensuring the smooth movement of the second piston block 37.
[0043] In some examples, a jet tube 40 is fixedly sleeved on the front side of the bottom end of the rectangular body 38, a protective shell 41 is fixedly sleeved on the bottom end of the jet tube 40, the rear end of the protective shell 41 is fixedly connected to the rear inner wall of the descaling box 4, a round shaft 42 is fixedly sleeved on the rear side of the bottom end inside the protective shell 41, a knocking rod 43 is movably sleeved on the outer surface of the round shaft 42, and the outer surface of the knocking rod 43 is movably sleeved on the inner surface of the protective shell 41.
[0044] The bottom of the protective shell 41 is designed with an opening. The protective shell 41 is used to shield and protect the parts inside the protective shell 41, thereby preventing impurities from entering. At the same time, there is a gap between the top of the striking rod 43 and the bottom of the jet tube 40, so that air can enter the cavity of the rectangular body 38 where the second piston rod 36 is located through the jet tube 40.
[0045] In some examples, a second spring 44 is fixedly installed on the rear side of the top of the striking rod 43, and the other end of the second spring 44 is fixedly connected to the top of the inner surface of the protective shell 41. An auxiliary stop 45 located between the jet tube 40 and the second spring 44 is movably connected to the top of the striking rod 43, and the top of the auxiliary stop 45 is fixedly connected to the top of the inner surface of the protective shell 41.
[0046] The auxiliary stop lever 45 can assist in blocking the knocking lever 43, thereby preventing the top of the knocking lever 43 from sticking together with the bottom of the jet tube 40 and affecting the entry of air.
[0047] Working principle and usage process of this invention: During use, high-pressure water will enter the upper nozzle manifold 32, the lower nozzle manifold 33, and the inlet pipe 6 through the water supply pipe 34 and the hose 35 respectively. The high-pressure water entering the upper nozzle manifold 32 and the lower nozzle manifold 33 will be sprayed out quickly through the nozzles for descaling. The high-pressure water entering the inlet pipe 6 will enter the spray pipe 18 through the fixed block 7, the outlet pipe 16, and the connecting rod 17, and then be sprayed out from the spray pipe 18. When the high-pressure water flows through the fixed block 7, it will impact the impeller 9, causing the impeller 9 to rotate around the linkage shaft 8, the rotating plate 10, and the round rod 11. This causes the vertical rod 12 to reciprocate under the rotation of the round rod 11, which in turn causes the push rod 14 to swing under the push of the bottom rod 13. This prevents iron oxide scale from accumulating on the surface of the un-descaled steel slab and affecting the descaling efficiency.
[0048] During the reciprocating motion of the vertical rod 12, the first piston block 22 will move along the inner surface of the first cylinder 23 with the vertical rod 12 via the first piston rod 21. When the hydraulic oil inside the first cylinder 23, the inclined tube 24, and the second cylinder 25 is squeezed by the first piston block 22, the hydraulic oil will push the slider 26, forcing the slider 26 to move along the connecting rod 28, carrying the long plate 29, the lower nozzle manifold 33, and the upper nozzle manifold 32, and compressing the first spring 27. When the hydraulic oil inside the first cylinder 23, the inclined tube 24, and the second cylinder 25 is no longer squeezed by the first piston block 22, under the restoring action of the first spring 27, the slider 26 will return to its original position along with the connecting rod 28, the long plate 29, the upper nozzle manifold 32, and the lower nozzle manifold 33. This cycle repeats, thereby realizing the reciprocating motion of the upper nozzle manifold 32 and the lower nozzle manifold 33, thus preventing the nozzles on the upper nozzle manifold 32 and the lower nozzle manifold 33 from having spray dead angles, and further improving the descaling efficiency.
[0049] During the reciprocating motion of the vertical rod 12, the second piston rod 36 and the second piston block 37 will also move along the inner surface of the rectangular body 38. When the second piston block 37 and the second piston rod 36 move outward from the rectangular body 38 under the drive of the vertical rod 12, the air inside the rectangular body 38 on the side where the second piston rod 36 is located will be rapidly ejected through the jet nozzle 40. The rapidly ejected gas will generate a thrust on the striking rod 43 directly below the jet nozzle 40, causing the striking rod 43 to rotate around the circular shaft 42 and stretch the second spring 44, thereby causing the striking rod to... When rod 43 strikes filter plate 19, and the airflow stops pushing rod 43, rod 43 will return to its original position under the restoring action of second spring 44 and come into contact with auxiliary stop rod 45 until second piston block 37 moves outward of rectangular body 38 again, causing rod 43 to strike filter plate 19 again. This cycle repeats, so that rod 43 continuously strikes and vibrates filter plate 19, allowing the iron oxide scale on top of filter plate 19 to enter slag collection box 20 under the water sprayed from spray pipe 18 and the vibration of rod 43, thereby preventing filter plate 19 from becoming clogged.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A hot rolling device with high-efficiency descaling, comprising a support (1), characterized in that: The support (1) is movably fitted with a conveyor roller (2). A hot rolling mill (3) is fixedly fitted on the right side inside the support (1). A descaling box (4) is fixedly fitted on the left side inside the support (1). A water inlet valve (5) is fixedly fitted on the upper left rear end of the descaling box (4). The front end of the water inlet valve (5) passes through the descaling box (4) and extends into the interior of the descaling box (4) and is fixedly connected to a water inlet pipe (6). A fixing block (7) is fixedly fitted on the front end of the water inlet pipe (6). The left end of the fixing block (7) is fixedly connected to the middle of the left inner wall of the descaling box (4). A linkage shaft (8) is movably fitted inside the right end of the fixing block (7). An impeller is fixedly fitted on the left side of the outer surface of the linkage shaft (8). (9) The outer surface of the impeller (9) and the inner surface of the fixed block (7) are movably sleeved. A rotating plate (10) is fixedly sleeved on the right side of the outer surface of the linkage shaft (8). A round rod (11) is fixedly sleeved inside the rear end of the rotating plate (10). A vertical rod (12) is movably sleeved on the right side of the outer surface of the round rod (11). The left end of the vertical rod (12) is movably connected to the right end of the rotating plate (10). A bottom rod (13) is fixedly installed in the middle of the bottom end of the vertical rod (12). A push rod (14) is movably sleeved on the bottom of the outer surface of the bottom rod (13). A fixed shaft (15) is movably sleeved inside the push rod (14). The top end of the fixed shaft (15) is fixedly connected to the left side of the top of the inner surface of the descaling box (4).
2. The hot rolling apparatus with high-efficiency descaling according to claim 1, characterized in that: The front end of the fixed block (7) is fixedly sleeved with a water outlet pipe (16), the front end of the water outlet pipe (16) is fixedly connected to the front inner wall of the descaling box (4), the front side of the bottom end of the water outlet pipe (16) is fixedly sleeved with a connecting rod (17), the bottom end of the connecting rod (17) is fixedly sleeved with a spray pipe (18), the front and rear ends of the spray pipe (18) are respectively fixedly connected to the front and rear inner walls of the descaling box (4), the inner surface of the descaling box (4) is fixedly sleeved with a filter plate (19) located below the spray pipe (18), the bottom of the right end of the descaling box (4) is fixedly installed with a slag collection box (20), the left end of the slag collection box (20) is movably connected to the right end of the filter plate (19).
3. A hot rolling apparatus with high-efficiency descaling according to claim 1, characterized in that: A first piston rod (21) is fixedly installed at the middle of the front end of the vertical rod (12). A first piston block (22) is fixedly installed at the front end of the first piston rod (21). A first cylinder (23) is movably sleeved on the outer surface of the first piston block (22). The front end of the first cylinder (23) is fixedly connected to the inner wall of the front side of the descaling box (4).
4. A hot rolling apparatus with high-efficiency descaling according to claim 3, characterized in that: An inclined tube (24) is fixedly sleeved on the front side of the right end of the first cylinder (23), and a second cylinder (25) is fixedly sleeved on the right end of the inclined tube (24). The front end of the second cylinder (25) is fixedly connected to the inner wall of the front side of the descaling box (4).
5. A hot rolling apparatus with high-efficiency descaling according to claim 4, characterized in that: A slider (26) is movably sleeved on the front side inside the second cylinder (25). A first spring (27) is fixedly installed at the rear end of the slider (26). The other end of the first spring (27) is fixedly connected to the rear inner wall of the second cylinder (25). A connecting rod (28) is fixedly installed at the middle of the rear end of the slider (26). A long plate (29) is fixedly installed at the rear end of the connecting rod (28). The front end of the long plate (29) is movably connected to the rear end of the second cylinder (25).
6. A hot rolling apparatus with high-efficiency descaling according to claim 5, characterized in that: Limiting rods (31) are fixedly installed on the upper and lower sides of the front end of the long plate (29), and a limiting plate (30) is fixedly installed on the front end of the limiting rod (31). The inner surface of the limiting plate (30) is movably connected to the outer surface of the second cylinder (25).
7. A hot rolling apparatus with high-efficiency descaling according to claim 5, characterized in that: The upper nozzle manifold (32) and the lower nozzle manifold (33) are fixedly installed on the upper and lower sides of the rear end of the long plate (29), respectively. The rear ends of the upper nozzle manifold (32) and the lower nozzle manifold (33) are fixedly sleeved with water supply pipes (34). The rear end of the water supply pipe (34) passes through the descaling box (4) and extends to the outside of the descaling box (4). The rear end of the water supply pipe (34) is fixedly sleeved with a flexible hose (35) located outside the descaling box (4). The other end of the flexible hose (35) is fixedly connected to the rear end of the water inlet valve (5).
8. A hot rolling apparatus with high-efficiency descaling according to claim 1, characterized in that: A second piston rod (36) is fixedly installed at the middle of the rear end of the vertical rod (12). A second piston block (37) is fixedly installed at the rear end of the second piston rod (36). A rectangular body (38) is movably sleeved on the outer surface of the second piston block (37). The inner surface of the front end of the rectangular body (38) is movably sleeved on the outer surface of the second piston rod (36). The rear end of the rectangular body (38) is fixedly connected to the rear inner wall of the descaling box (4). A vent valve (39) is fixedly installed at the rear end of the rectangular body (38). The rear end of the vent valve (39) penetrates the descaling box (4) and extends to the outside of the descaling box (4).
9. A hot rolling apparatus with high-efficiency descaling according to claim 8, characterized in that: A jet tube (40) is fixedly sleeved on the front side of the bottom end of the rectangular body (38). A protective shell (41) is fixedly sleeved on the bottom end of the jet tube (40). The rear end of the protective shell (41) is fixedly connected to the rear inner wall of the descaling box (4). A round shaft (42) is fixedly sleeved on the rear side of the bottom end inside the protective shell (41). A knocking rod (43) is movably sleeved on the outer surface of the round shaft (42). The outer surface of the knocking rod (43) is movably sleeved on the inner surface of the protective shell (41).
10. A hot rolling apparatus with high-efficiency descaling according to claim 9, characterized in that: A second spring (44) is fixedly installed on the rear side of the top of the striking rod (43). The other end of the second spring (44) is fixedly connected to the top of the inner surface of the protective shell (41). An auxiliary stop (45) located between the jet tube (40) and the second spring (44) is movably connected to the top of the striking rod (43). The top of the auxiliary stop (45) is fixedly connected to the top of the inner surface of the protective shell (41).