Device for preventing waste steel of hot continuous rolling head-warping strip steel

Abstract

The utility model discloses a device for preventing waste steel of head-warping strip steel in hot continuous rolling, which is arranged in a path through which the strip steel passes, and at least comprises a guide plate, the guide plate is an arc-shaped plate, one end of the guide plate is fixed on a vertical column on a transmission side of a thickness gauge protection support, and the other end of the guide plate is fixed on a vertical column on a transmission side of the thickness gauge protection support. And the other end is fixed on the upright post on the operation side of the thickness gauge protection bracket. When the strip steel collides with the thickness gauge protection support, under the guiding action of the guiding plate, the strip steel can change the moving track along the guiding of the guiding plate and fall back to the roller way again to continue to move forwards, so that the device effectively guarantees smooth passing of the strip steel, and the problem that the strip steel is damaged due to the fact that the speed of the head of the strip steel becomes slow after being collided but the speed of a rolling mill is not changed is solved. And the phenomenon of scrap steel caused by steel piling at the outlet of the rolling mill is avoided.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling technology, and in particular to a device for preventing hot strip steel scrap from curling up. Background Technology

[0002] In a hot continuous rolling production line, after the steel billet is heated in the heating zone, it is rolled into strip steel through the roughing and finishing rolling zones. It then enters the coiling zone through the conveyor rollers and is coiled into steel coils. In the finishing rolling zone, the strip steel passes through multiple rolling mills in sequence, and after passing through the thickness gauge and width gauge, it enters the laminar flow cooling zone.

[0003] In actual production, when the temperature difference between the upper and lower surfaces of the strip is too large, the strip will curl up. The reason for this is that the temperature of the lower surface is higher than that of the upper surface, and the lower surface has a greater elongation than the upper surface. If the curling is severe, the strip head will hit the thickness gauge's protective bracket. After the impact, the strip head slows down, while the speed of the rolling mill remains unchanged, resulting in steel piling up at the last rolling mill exit and causing scrap steel.

[0004] Therefore, how to ensure that the strip steel passes through the rolling mill smoothly and thus avoid the occurrence of scrap steel is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a device for preventing hot strip from curling up and becoming scrap, which can ensure that the strip passes through the rolling mill smoothly, thereby avoiding the occurrence of scrap.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for preventing hot-rolled strip steel scrap from curling up is installed in the path through which the strip steel passes, and includes at least a guide plate, the guide plate being an arc-shaped plate, one end of the guide plate being fixed to a column on the transmission side of the thickness gauge protection bracket, and the other end being fixed to a column on the operation side of the thickness gauge protection bracket.

[0008] Optionally, the guide plate includes a main body, a first warped portion, and a second warped portion, wherein the first warped portion and the second warped portion are respectively disposed on both sides of the main body;

[0009] The first warped portion is connected to the column on the transmission side of the thickness gauge protective bracket, the second warped portion is connected to the column on the operation side of the thickness gauge protective bracket, and the main body is bent toward the strip steel.

[0010] Optionally, the angle between the first warped portion and the horizontal plane, and the angle between the second warped portion and the horizontal plane, are both 30°-40°, and the main body portion is parallel to the horizontal plane.

[0011] Optionally, the guide plate is made of metal.

[0012] Optionally, the guide plate has a thickness of 15mm-20mm and a width of 800mm-1000mm.

[0013] Optionally, it also includes a reinforcing member, the two ends of which are respectively connected to the thickness gauge protective bracket and the guide plate.

[0014] Optionally, the reinforcing component is a reinforcing plate, and the thickness gauge protective bracket and the guide plate are respectively welded to the reinforcing plate.

[0015] As can be seen from the above technical solution, when the strip steel hits the thickness gauge protective bracket, under the guidance of the guide plate, the strip steel will change its running trajectory along the guide plate and fall back onto the roller table to continue moving forward. Therefore, the device effectively ensures the smooth passage of the strip steel, thereby avoiding the phenomenon of scrap steel piling up at the mill exit due to the strip steel head slowing down after the impact, but the mill speed remaining unchanged. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the device for preventing hot-rolled strip steel scrap from curling up, as disclosed in an embodiment of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the strip running trajectory disclosed in the embodiments of this utility model;

[0019] Figure 3 This is a cross-sectional view of the guide plate disclosed in the embodiment of this utility model.

[0020] The names of the components are as follows:

[0021] 100-Strip steel, 200-Guide plate, 201-Main body, 202-First warped section, 203-Second warped section, 300-Thickness gauge protective bracket, 400-Thickness gauge, 500-Rolling mill, 600-Reinforcing parts, 700-Roller conveyor. Detailed Implementation

[0022] In view of this, the core of this utility model is to provide a device for preventing hot strip from curling up and becoming scrap, which can ensure that the strip passes through smoothly and thus avoid the occurrence of scrap.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Please refer to... Figures 1 to 3 .

[0024] The device for preventing hot-rolled strip steel scrap from curling up, as disclosed in this embodiment of the utility model, is installed in the path through which the strip steel 100 passes. The device for preventing hot-rolled strip steel scrap from curling up includes at least a guide plate 200. The guide plate 200 is an arc-shaped plate. One end of the guide plate 200 is fixed to the column on the transmission side of the thickness gauge protection bracket 300, and the other end is fixed to the column on the operation side of the thickness gauge protection bracket 300.

[0025] When the strip 100 impacts the thickness gauge protective bracket 300, under the guidance of the guide plate 200, the strip 100 will change its running trajectory along the guide plate 200 and fall back onto the roller conveyor 700 to continue moving forward. Therefore, this device effectively ensures the smooth passage of the strip 100, thereby avoiding the phenomenon of scrap steel piling up at the exit of the rolling mill 500 due to the strip 100 slowing down after impact, while the speed of the rolling mill 500 remains unchanged.

[0026] This utility model embodiment does not limit the specific structure of the guide plate 200. Any structure that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0027] As one embodiment, the guide plate 200 disclosed in this utility model embodiment includes a main body 201, a first warped part 202 and a second warped part 203, wherein the first warped part 202 and the second warped part 203 are respectively disposed on both sides of the main body 201.

[0028] Specifically, the first warped part 202 is connected to the column on the transmission side of the thickness gauge protective bracket 300, the second warped part 203 is connected to the column on the operation side of the thickness gauge protective bracket 300, and the main body 201 is bent toward the strip steel 100.

[0029] With this configuration, when the strip tip collides with the thickness gauge protective bracket 300, the strip tip can pass through the lower part of the main body 201 under the guidance of the guide plate 200, thereby changing the running trajectory of the strip 100.

[0030] It should be noted that the angle between the first warped portion 202 and the horizontal plane, and the angle between the second warped portion 203 and the horizontal plane, disclosed in this embodiment of the present invention, are both 30°-40°, and the main body 201 is parallel to the horizontal plane. This arrangement facilitates the smooth passage of the strip steel 100.

[0031] As a further embodiment, the angle between the first warped portion 202 and the horizontal plane, and the angle between the second warped portion 203 and the horizontal plane, disclosed in this utility model embodiment are both 35°.

[0032] This embodiment of the utility model does not limit the specific material of the guide plate 200. Any material that meets the requirements of this utility model is within the protection scope of this utility model.

[0033] As one embodiment, the guide plate 200 disclosed in this utility model embodiment is made of metal material.

[0034] As a further embodiment, the guide plate 200 disclosed in this utility model embodiment is made of stainless steel.

[0035] Since the impact force of the strip 100 is very strong, in order to avoid displacement of the guide plate 200, the thickness of the guide plate 200 disclosed in this utility model embodiment is preferably 15mm-20mm, and the width is preferably 800mm-1000mm.

[0036] This design prevents the guide plate 200 from being knocked away during the collision between the strip 100 and the guide plate 200.

[0037] To further enhance the strength of the guide plate 200, the device for preventing hot strip steel scrap from warping during continuous rolling disclosed in this embodiment of the present invention also includes a reinforcing member 600, wherein the two ends of the reinforcing member 600 are respectively connected to the thickness gauge protection bracket 300 and the guide plate 200.

[0038] This utility model embodiment does not limit the specific structure of the reinforcement 600. Any structure that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0039] In one embodiment, the reinforcing member 600 disclosed in this utility model embodiment is a reinforcing plate, wherein the thickness gauge protective bracket 300 and the guide plate 200 are welded to the reinforcing plate. This configuration further enhances the strength of the reinforcing member 600.

[0040] This utility model embodiment does not limit the specific material of the reinforcing plate; any material that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0041] As a preferred embodiment, the reinforcing plate disclosed in this utility model embodiment is made of metal.

[0042] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing hot-rolled strip steel scrap from curling up, disposed in the path through which the strip steel passes, characterized in that, It includes at least a guide plate, which is an arc-shaped plate. One end of the guide plate is fixed to the column on the transmission side of the thickness gauge protective bracket, and the other end is fixed to the column on the operation side of the thickness gauge protective bracket.

2. The device for preventing hot-rolled strip steel scrap from curling up as described in claim 1, characterized in that, The guide plate includes a main body, a first warped portion, and a second warped portion, wherein the first warped portion and the second warped portion are respectively disposed on both sides of the main body; The first warped portion is connected to the column on the transmission side of the thickness gauge protective bracket, the second warped portion is connected to the column on the operation side of the thickness gauge protective bracket, and the main body is bent toward the strip steel.

3. The device for preventing hot-rolled strip steel scrap from curling up according to claim 2, characterized in that, The angle between the first warped portion and the horizontal plane, and the angle between the second warped portion and the horizontal plane, are both 30°-40°, and the main body portion is parallel to the horizontal plane.

4. The device for preventing hot-rolled strip steel scrap from curling up as described in claim 1, characterized in that, The guide plate is made of metal.

5. The device for preventing hot-rolled strip steel scrap from curling up as described in claim 1, characterized in that, The guide plate has a thickness of 15mm-20mm and a width of 800mm-1000mm.

6. The device for preventing hot-rolled strip steel scrap from curling up according to claim 1, characterized in that, It also includes a reinforcing member, the two ends of which are respectively connected to the thickness gauge protective bracket and the guide plate.

7. The device for preventing hot-rolled strip steel scrap from warping according to claim 6, characterized in that, The reinforcing component is a reinforcing plate, and the thickness gauge protective bracket and the guide plate are respectively welded to the reinforcing plate.

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