Drawing type descaling device with adjustable height

Abstract

The utility model relates to a height-adjustable drawing type descaling device which comprises a descaling cover and header supporting frames, the header supporting frames are divided into an upper header supporting frame and a lower header supporting frame which are symmetrically arranged on the two sides of the upper plate face and the lower plate face of an intermediate billet, and the upper header supporting frame is arranged on the lower surface of the descaling cover; the descaling device further comprises water nozzles, descaling headers, handles, idler wheels and gasket sets, the water nozzles, the descaling headers, the handles, the idler wheels and the gasket sets are arranged in the upper header supporting frame and the lower header supporting frame respectively, the water nozzles on the upper side and the lower side extend out of the upper header supporting frame and the lower header supporting frame, and nozzles of the water nozzles face the upper plate face and the lower plate face of an intermediate billet. The device has the advantages of being high in adaptability, wide in application range, capable of improving the descaling effect of intermediate billets in different thickness ranges, good in practicability, capable of improving descaling quality and plate blank rolling quality, convenient to detach the descaling collecting pipe and capable of improving safety, convenience and accuracy of maintenance operation.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling technology, and in particular to an adjustable height pull-out descaling device. Background Technology

[0002] The descaling device in rough rolling plays a crucial role in removing iron oxide scale from the surface of strip steel and controlling temperature. Its performance determines the product performance and surface quality. To ensure the product yield, the working status and installation accuracy of the descaling device are the key points of daily production and equipment maintenance.

[0003] The descaling unit for hot-rolled strip roughing uses a fixed manifold with integrated descaling nozzles. During production, the descaling unit is frequently damaged due to abnormal conditions, such as strip tip impacting the nozzles, causing damage to the nozzles and their bases; the nozzles being subjected to high-pressure water jets for extended periods, causing the descaling water jets to deform into a fan shape. Furthermore, the fixed manifold design makes repair difficult, time-consuming, and inefficient when nozzles are damaged. Additionally, the fixed nozzle height prevents adjustment based on changes in the intermediate slab thickness, resulting in insufficient descaling pressure and inadequate fan-shaped overlap, leading to poor descaling of the slab and impacting subsequent rolling operations. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this utility model provides an adjustable height pull-out descaling device. It adopts a descaling nozzle with adjustable height and easy disassembly, effectively solving the problem of limited nozzle height adjustment. By adjusting the nozzle height, the descaling effect of intermediate billets of different thicknesses is improved, thus improving the descaling quality of intermediate billets. At the same time, it facilitates the disassembly of the descaling manifold, improving the safety, convenience, and accuracy of maintenance operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable-height pull-out descaling device includes a descaling hood and a manifold support frame. The manifold support frame is symmetrically arranged on both sides of the upper and lower plates of an intermediate billet, with the upper manifold support frame located on the lower surface of the descaling hood. The descaling device also includes water nozzles, a descaling manifold, a handle, rollers, and a set of gaskets. The water nozzles, descaling manifold, handle, rollers, and gaskets are arranged in two groups within the upper and lower manifold support frames, respectively. The water nozzles on both sides extend from the upper and lower manifold support frames, with the nozzle nozzles facing the upper and lower plates of the intermediate billet. The water nozzles are evenly distributed at one end of the descaling manifold, and a roller is located at the end of the descaling manifold away from the water nozzles, with the descaling manifold and rollers engaging in rolling contact. A handle is provided on the descaling manifold.

[0007] Furthermore, the descaling device also includes a pressure-resistant metal hose and a connecting flange. The pressure-resistant metal hose is divided into two parts, which are connected to the upper descaling manifold and the lower descaling manifold respectively through the connecting flange.

[0008] Furthermore, the inner wall of the manifold support frame is provided with a channel for the rollers to roll.

[0009] Furthermore, the gasket set is composed of different gaskets of different thicknesses.

[0010] Furthermore, the descaling manifold is fixed within the manifold support frame by clamping bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1) The shim set can effectively solve the problem of limited adjustment of the descaling nozzle height. By adjusting the nozzle height, it can adapt to the descaling of intermediate billets of different thicknesses. It has high adaptability, wide application range, improves the descaling effect of intermediate billets of different thicknesses, has good practicality, improves the descaling quality, and improves the slab rolling quality.

[0013] 2) When the descaling manifold and descaling nozzle are replaced regularly or damaged abnormally, the descaling manifold can be quickly pulled out with the help of rollers. The pulling is flexible and convenient, and it can be placed in an open area for maintenance, avoiding the need for construction personnel to work in narrow passages. The maintenance is quick and convenient, reducing the difficulty of maintenance, reducing the workload of maintenance, improving the safety, convenience and accuracy of maintenance operations, and improving the precision of the device. Attached Figure Description

[0014] Figure 1 This is a front view of the adjustable height pull-out descaling device of this utility model.

[0015] Figure 2 This is a side view of the adjustable height pull-out descaling device described in this utility model.

[0016] In the diagram: 1. Water inlet; 2. Upper descaling manifold; 3. Clamping bolt; 4. Upper roller; 5. Gasket assembly; 6. Upper manifold support frame; 7. Lower manifold support frame; 8. Lower roller; 9. Lower descaling manifold; 10. Water outlet; 11. Descaling cover; 12. Connecting flange; 13. Pressure-resistant metal hose; 14. Handle; 15. Roller conveyor. Detailed Implementation

[0017] The specific embodiments of this utility model are further described below:

[0018] In the description of this patent, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] For ease of description, spatial relative terms such as "above," "over," "on the upper surface," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly. Unless otherwise stated, the above terms have no special meaning and should not be construed as limiting the scope of protection of this invention.

[0020] like Figures 1-2 As shown, the working principle of an adjustable-height pull-out descaling device is as follows: The distance between the upper and lower water nozzles and the upper and lower surfaces of the intermediate blank is adjusted by the shim group 5 to ensure the descaling effect of the water nozzles. The intermediate blank passes through the descaling device, and high-pressure water is sprayed from the upper and lower water nozzles to remove scale. When the water nozzles and the descaling device need to be inspected or replaced, the connecting flange 12 between the descaling manifold and the pressure-resistant metal hose 13 is removed. Through the rolling cooperation between the rollers in the manifold support frame and the descaling manifold, the water nozzles and descaling manifold can be easily pulled out of the manifold support frame for inspection and replacement. The inspected descaling manifold can be easily pushed back into the manifold support frame, saving inspection time and improving inspection efficiency. According to the thickness of the intermediate blank, the height of the water nozzles can be adjusted by adding or removing shims from the shim group 5 to adapt to the descaling work on the surface of intermediate blanks of different thicknesses. It has high adaptability, good descaling effect, and high descaling quality.

[0021] like Figures 1-2As shown, an adjustable-height pull-out descaling device includes a descaling cover 11 and a manifold support frame. The manifold support frame is symmetrically arranged in two sections on the upper and lower surfaces of the intermediate billet. The upper manifold support frame 6 is located on the lower surface of the descaling cover 11, and the lower manifold support frame 7 is symmetrically arranged between the intermediate billet conveying rollers 15. An upper water nozzle 1 is provided on the side of the upper manifold support frame 6 facing the upper surface of the intermediate billet. One end of the nozzle 1 faces the upper surface of the intermediate billet, and the other end of the nozzle 1 is located on the upper descaling manifold 2. An upper roller 4 is provided on the other end of the upper descaling manifold 2. The upper roller 4 is located in the rolling channel of the upper manifold support frame 6, and the upper descaling manifold 2 and the upper roller 4 roll in cooperation. A shim set 5 is provided between the upper roller 4 and the bottom of the upper manifold support frame 6. The shim set 5 adjusts the height of the upper water nozzle 1 from the upper surface of the intermediate billet. Pipe 2, upper roller 4, and gasket set 5 are set inside the upper manifold support frame 6. A water nozzle 10 is set on the side of the lower manifold support frame 6 facing the lower surface of the intermediate billet. One end of the nozzle 10 faces the lower surface of the intermediate billet, and the other end of the nozzle 10 is set on the lower descaling manifold 9. A lower roller 8 is set on the other end of the lower descaling manifold 9. The lower roller 8 is set in the rolling channel of the lower manifold support frame 7. The lower descaling manifold 9 and the lower roller 8 roll together. A gasket set 5 is set between the lower roller 8 and the bottom of the lower manifold support frame 7. The gasket set 5 adjusts the height of the water nozzle 10 from the lower surface of the intermediate billet. The lower descaling manifold 9, lower roller 8, and gasket set 5 are set inside the lower manifold support frame 7. The upper water nozzle 1 and the lower water nozzle 10 are arranged symmetrically, facing the upper and lower plates of the intermediate billet respectively. Handles 14 are set on the upper descaling manifold 2 and the lower descaling manifold 9 respectively.

[0022] Furthermore, the descaling device also includes a pressure-resistant metal hose 13 and a connecting flange 12. The pressure-resistant metal hose 13 is divided into two parts, which are respectively connected to the upper descaling manifold 2 and the lower descaling manifold 9 through the connecting flange 12.

[0023] Furthermore, the inner wall of the manifold support frame is provided with a channel for the rollers to roll.

[0024] Furthermore, the gasket group 5 consists of different gaskets of different thicknesses. The gaskets in the gasket group 5 have different thicknesses. According to the different thicknesses of the intermediate blank, gaskets of different thicknesses are added or removed to adjust the overall height of the manifold, thereby adjusting the height of the water nozzle to meet the overlap of the descaling water and improve the descaling effect of the intermediate blank.

[0025] Furthermore, the descaling manifold is fixed within the manifold support frame by clamping bolts 3.

[0026] like Figures 1-2 As shown, the working method of an adjustable-height pull-out descaling device is as follows:

[0027] S1. The descaling device is designed to be removable and detachable. The upper manifold support frame 6 is fixed on the lower surface of the descaling cover 11, and the lower manifold fixing frame 7 is fixed on the roller conveyor 15 base. The descaling manifold is equipped with rollers and travels along the pads to allow it to be pulled out from the manifold support frame or mounted on the machine.

[0028] S2. The descaling manifold support frame has a sealed end on one side and an open end on the other. The open end is the inlet for pulling out or pushing in the descaling manifold. The water nozzle extends out from the open end, with the nozzle facing the middle blank surface. The descaling device is fastened by the clamping bolts 3 to ensure that the manifold will not shift laterally during descaling.

[0029] S3, the descaling manifold and the main pipe are connected by a set of connecting flanges 12 and pressure-resistant metal hoses 13. By separating the flanges, space is left to facilitate the disassembly of the descaling manifold.

[0030] S4. The height of the descaling nozzle is calculated based on the thickness of the rolled slab and adjusted by the thickness of the shims to meet the fan-shaped overlap and descaling pressure, thereby improving the descaling effect.

[0031] S5. After the descaling manifold is installed, tighten the clamping bolts 3. The clamping bolts 3 are evenly arranged along the length of the manifold to eliminate the gap between the rollers and the gasket group 5, ensuring that the descaling manifold is stable and does not shake during the descaling operation.

[0032] 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 concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable pull-type descaling device, comprising a descaling cover and a header support frame, the header support frame is symmetrically arranged on both sides of the upper and lower surfaces of the intermediate blank, and the upper header support frame is arranged on the lower surface of the descaling cover; characterized in that, The descaling device further comprises water nozzles, descaling headers, handles, rollers and gasket sets, the water nozzles, descaling headers, handles and rollers are arranged in two groups in the upper and lower header support frames, the upper and lower water nozzles extend out of the upper and lower header support frames, the water nozzle nozzles face the upper and lower surfaces of the intermediate blank, the water nozzles are uniformly distributed at one end of the descaling headers, the rollers are arranged at the end of the descaling headers away from the water nozzles, the descaling headers are in rolling cooperation with the rollers, and the descaling headers are provided with handles.

2. The height adjustable pull-off descaling device according to claim 1, characterized in that The descaling device further comprises pressure-resistant metal hoses and connecting flanges, the pressure-resistant metal hoses are divided into two, and the upper descaling header and the lower descaling header are connected through the connecting flanges.

3. The height adjustable pull-off descaling device according to claim 1, characterized in that The inner wall of the header support frame is provided with a channel for the rollers to roll.

4. The height adjustable pull-off descaling device according to claim 1, characterized in that The gasket sets are composed of different gaskets to form different thicknesses.

5. The height adjustable pull-off descaling device according to claim 1, characterized in that The descaling headers are fixed in the header support frame through compression bolts.

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