Full-closed heat preservation cover for direct rolling of steel billets
By designing a fully enclosed insulation cover for straight rolling of steel billets, using C-shaped structure and high-temperature resistant materials, the problem of too fast temperature drop during straight rolling of steel billets is solved, the rolling efficiency and product quality are improved, and energy is saved and losses are reduced.
Patent Information
- Application Number
- CN202422199105.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The temperature drops too fast during the direct rolling process of steel billets, which affects the rolling efficiency and product quality.
A fully enclosed insulation cover for straight rolling steel billets is designed, including front insulation cover and rear insulation cover. It adopts a C-shaped cover body, silicon fiberboard upper and lower plates, a high-temperature resistant sponge filling layer and a cylinder control system to ensure the temperature of the billets during the transportation process.
The temperature drop of the steel billet during the transportation process is controlled within 20 degrees, and the opening rolling temperature reaches above 920 degrees, reducing the cut-off rate of the rolling line, saving 150 cubic meters of gas/ton of steel, and reducing oxidative burn-out loss by 0.6%.
Smart Images
Figure CN222999360U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of billet direct rolling roller table heat preservation, and particularly relates to a fully enclosed heat preservation cover for billet direct rolling. Background Art
[0002] In iron and steel production, from steelmaking to continuous casting and then to rolling is a continuous process, and maintaining the temperature of the billet is crucial for improving production efficiency and ensuring product quality. The fully enclosed heat preservation cover for billet direct rolling is a device used to maintain the temperature of the billet during transportation, especially suitable for long billets, to ensure that it remains within the optimal temperature range before entering the rolling mill, thereby improving rolling efficiency and product quality.
[0003] Therefore, there is an urgent need to design a fully enclosed heat preservation cover for billet direct rolling to solve the problem of too fast temperature drop during billet direct rolling. Summary of the Utility Model
[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a fully enclosed heat preservation cover for billet direct rolling.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a fully enclosed heat preservation cover for billet direct rolling, including a front heat preservation cover and a rear heat preservation cover. The front heat preservation cover is the heat preservation cover close to the rolling mill direction, and the rear heat preservation cover is the heat preservation cover far from the rolling mill direction. The front heat preservation cover and the rear heat preservation cover adopt the same structure. The front heat preservation cover includes a cover body, side plates and mounting seats. The two sides of the cover body are connected to the side plates through the mounting seats, and the bottom of the side plates is supported on the two sides of the rolling mill frame.
[0006] Specifically, the cover body is a C-shaped structure with an opening downward. The cover body includes an upper plate, a lower plate and an internal filling layer, and the lower part of the cover body is connected to a guard plate.
[0007] Specifically, the upper plate and the lower plate are silica fiber plates. A hoisting plate is fixedly connected to the upper surface of the upper plate, and a hook is provided on the hoisting plate. The internal filling layer is high-temperature resistant sponge.
[0008] Specifically, the guard plate is installed at the lower part of the cover body, and the guard plate is connected to the mounting seat.
[0009] Specifically, the mounting seat is a bolt structure, and the mounting seat mounts the front heat preservation cover and the rear heat preservation cover on the rolling mill.
[0010] Specifically, the front heat preservation cover is provided with a cylinder as needed. The cylinder seat is installed on the two sides of the rolling mill frame, the telescopic rod of the cylinder is connected to the bottom of the mounting seat, and the cylinder controls the lifting of the cover body of the front heat preservation cover.
[0011] The utility model has the following beneficial effects:
[0012] The fully enclosed heat preservation cover designed for the direct rolling of steel billets in the utility model: After installation, the temperature drop throughout the process is controlled within 20 degrees, and the rolling temperature reaches over 920 degrees to achieve the direct rolling of steel billets; it reduces the cutting loss rate of the rolling line, saves 150 cubic meters of gas per ton of steel, and reduces the oxidation loss by 0.6%. Description of the Drawings
[0013] Figure 1 It is a schematic structural view of the front heat preservation cover of the fully enclosed heat preservation cover for the direct rolling of steel billets.
[0014] Figure 2 It is a schematic structural view of the overall structure of the fully enclosed heat preservation cover for the direct rolling of steel billets.
[0015] Figure 3 It is Figure 2 An enlarged view of part A in
[0016] In the figure: 1 - front heat preservation cover, 1.1 - upper plate, 1.2 - internal filling layer, 1.3 - lower plate, 1.4 - lifting plate, 1.5 - lifting hook; 2 - side plate; 3 - mounting seat; 4 - guard plate; 5 - cylinder; 6 - rolling mill frame; 7 - rear heat preservation cover. Specific Embodiments
[0017] The following will further describe clearly and completely the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.
[0018] Embodiment 1:
[0019] As Figures 1 - 3 shown, a fully enclosed heat preservation cover for the direct rolling of steel billets includes a front heat preservation cover 1 and a rear heat preservation cover. The front heat preservation cover 1 is the heat preservation cover close to the rolling mill direction, and the rear heat preservation cover is the heat preservation cover far from the rolling mill direction. The front heat preservation cover 1 and the rear heat preservation cover adopt the same structure. The front heat preservation cover 1 includes a cover body, a side plate 2 and a mounting seat 3. The two sides of the cover body are connected to the side plate 2 through the mounting seat 3, and the bottom of the side plate 2 is supported on the two sides of the rolling mill frame.
[0020] After the 16-meter billet comes out of the steel rolling outlet, it enters the steel rolling roller table. The front section and the rear section of the steel rolling roller table are respectively provided with a front heat preservation cover 1 and a rear heat preservation cover. The front heat preservation cover 1 and the rear heat preservation cover are used for heat preservation of the steel rolling. The front heat preservation cover 1 includes a cover body, side plates 2 and a mounting seat 3. The cover body includes an upper plate 1.1, a lower plate 1.3 and an internal filling layer 1.2. Both the upper plate 1.1 and the lower plate 1.3 are silica fiber plates, and the characteristic of the silica fiber plate is high temperature resistance. The internal filling layer 1.2 is a sponge with high temperature resistance and heat preservation. A lifting plate 1.4 is also provided on the upper part of the upper plate 1.1 of the cover body, and a lifting hook 1.5 is provided on the lifting plate 1.4. The lifting hook 1.5 is used for lifting and unloading the rear heat preservation plate. Mounting seats 3 are provided on both sides of the cover body. The mounting seats 3 are used to connect the cover body and the side plates 2. A protection plate 4 is also provided between the mounting seats 3 and the cover body. The protection plate 4 is used to protect the cover body. The side plates 2 are connected to the mounting seats 3 and are supported on the rolling mill. A cylinder 5 is also provided at the bottom of the cover body of the front heat preservation cover 1. The cylinder 5 is used for the opening and closing of the front heat preservation cover 1, and the cylinder 5 can be remotely controlled.
[0021] Embodiment 2: The specific implementation steps of adopting the structural form of Embodiment 1.
[0022] 1. Insulation covers are designed and manufactured for the entire 227.6-meter length of the straight rolling roller table, and silica fiber plates are laid on both the top and bottom of the steel rolling roller table.
[0023] 2. The rear heat preservation cover is designed as a type lifted by a crane, and the side heat preservation plates on both sides of the roller table are designed to be detachable. Once there is a problem with the roller table, after lifting the top heat preservation plate at the rear section, the side heat preservation plates can be disassembled to avoid being unable to replace the roller table.
[0024] 3. All the front heat preservation covers 1 close to the rolling mill are designed to be pneumatically controlled, and the opening of the front heat preservation cover 1 can be remotely operated.
[0025] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model.
[0026] The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.
[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A fully enclosed heat preservation cover for direct rolling of steel billets, characterized in that: It includes a front insulation cover and a rear insulation cover, the front insulation cover is the insulation cover close to the rolling mill, and the rear insulation cover is the insulation cover away from the rolling mill. The front insulation cover and the rear insulation cover adopt the same structure. The front insulation cover includes a cover body, side plates and a mounting seat. The two sides of the cover body are connected to the side plates through the mounting seat, and the bottom of the side plates are supported on the frames on both sides of the rolling mill.
2. The fully enclosed heat preservation cover for direct rolling of steel billets according to claim 1, characterized in that: The cover body is a C-shaped structure with an opening downward, and comprises an upper plate, a lower plate and an internal filling layer, and the lower part of the cover body is connected to a guard plate.
3. The fully enclosed heat preservation cover for direct rolling of steel billets according to claim 2, characterized in that: The upper plate and the lower plate are silicon fiber plates. The upper plate is fixedly connected to a hanging plate, the hanging plate is provided with a hanging hook, and the internal filling layer is a high temperature resistant sponge.
4. The fully enclosed heat preservation cover for direct rolling of steel billets according to claim 2, characterized in that: The guard plate is installed at the lower part of the cover body, and the guard plate is connected to the mounting seat.
5. The fully enclosed heat preservation cover for direct rolling of steel billets according to claim 1, characterized in that: The mounting seat is a bolt structure, and the mounting seat mounts the front heat-insulating cover and the rear heat-insulating cover on the rolling mill.
6. The fully enclosed heat preservation cover for direct rolling of steel billets according to claim 1, characterized in that: The front heat-insulating cover is provided with a cylinder as required, and the cylinder seat is installed on the frames on both sides of the rolling mill, and the telescopic rod of the cylinder is connected to the bottom of the mounting seat, and the cylinder controls the lifting of the cover body of the front heat-insulating cover.