Slow cooling equipment
By setting up columns and high-temperature resistant metal plates on the side walls and interior walls of the slow-cooling pit, the problem of easy breakage of the interior wall is solved, the structural stability and insulation effect are improved, and the service life is extended.
Patent Information
- Application Number
- CN202420545715.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The interior walls of existing slow-cooling pits are easily broken or fall off by impacts during steel lifting, resulting in a reduced insulation effect and shortened service life.
Multiple columns and high-temperature resistant metal plates are installed on the side walls and inner walls of the slow-cooling pit, and weld and fixed at the connection between the columns and the side walls or inner walls. Use high-temperature resistant metal plates to connect to the side walls through fasteners. The high-temperature resistant metal plates on both sides of the wall are connected to the inner wall through fasteners to increase impact resistance.
It effectively improves the structural stability of the slow-cooling pit, prevents the inner wall from falling off, maintains a good insulation effect, and extends the service life of the slow-cooling pit.
Smart Images
Figure CN222447721U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of slow cooling, in particular to a slow cooling device. Background Art
[0002] When producing medium and large bars, due to the large cross-sectional size of rolled products, most products are generally subjected to slow cooling after being put down from the cooling bed in order to prevent cracks due to excessive temperature difference between the inner and outer surfaces or to eliminate white spots on the rolled products. The slow cooling equipment for finished rolled products mainly uses a slow cooling pit, which digs a rectangular pit about -3m down from the workshop floor, and is equipped with a corresponding slow cooling pit cover on top. The special structure allows the steel to achieve a slow cooling effect inside. The structure and quality of the slow cooling pit determine the performance of the product to a certain extent, so it is particularly important to develop a slow cooling pit with a more reasonable structure.
[0003] The existing slow cooling pit inner wall is mostly insulated by masonry refractory bricks, and the bottom plate of the slow cooling pit is often made of concrete structure, but this structure has the following shortcomings: the inner wall of the slow cooling pit is made of refractory bricks, which is easy to hit the inner wall of the pit when the slow cooling material is hoisted into the pit, causing the refractory bricks of the inner wall to break or fall off, thereby reducing the thermal insulation effect of the slow cooling pit, adversely affecting the organizational structure and mechanical properties of the finished product, and also shortening the service life of the slow cooling pit. The bottom of the slow cooling pit is made of concrete structure, which can meet the load-bearing effect of steel, but the thermal insulation effect of concrete on the slow cooling material is poor. Utility Model Content
[0004] The utility model aims to provide a slow cooling device, which can improve the stability of the structure, prevent the inner wall of the pit from being broken or falling off due to the impact of steel billets, and extend the service life.
[0005] The purpose of the utility model is achieved in this way. A slow cooling device includes a slow cooling pit surrounded by side walls and a bottom plate, wherein a plurality of inner walls are arranged in the slow cooling pit and the inner cavity of the slow cooling pit is divided into a plurality of pit bodies; a plurality of columns are arranged on the inner wall of the side wall and on both side walls of the inner wall, a high temperature resistant metal plate is connected between two adjacent columns, and an insulation plate is laid on the high temperature resistant metal plate; the columns are connected to the side walls or the inner walls, the high temperature resistant metal plate is connected to the side walls by a plurality of first fasteners, and the two high temperature resistant metal plates on both sides of the inner wall are connected to the inner wall by a plurality of second fasteners.
[0006] In a preferred embodiment of the present invention, the columns are steel columns, the high temperature resistant metal plates are steel plates, and the insulation plates are aluminum silicate fiber boards.
[0007] In a preferred embodiment of the present invention, the side walls, the inner walls and the bottom plate are all concrete structures, the first fasteners are direct-buried bolts pre-buried in the side walls, and the second fasteners are through-bolts.
[0008] In a preferred embodiment of the present invention, the column is fixed to the high temperature resistant metal plate by welding.
[0009] In a preferred embodiment of the present invention, embedded parts are pre-buried in the side walls and the inner walls, and the columns are fixed to the corresponding embedded parts by welding.
[0010] In a preferred embodiment of the present invention, a plurality of heat-insulating structures are laid on the bottom plate corresponding to each pit body, and a partition is provided between two adjacent heat-insulating structures.
[0011] In a preferred embodiment of the present invention, the thermal insulation structure includes thermal insulation boards, lightweight bricks and clay bricks laid sequentially from bottom to top.
[0012] In a preferred embodiment of the present invention, the thermal insulation structure further comprises a slag layer laid on top of the clay bricks.
[0013] In a preferred embodiment of the present invention, the partition is a long strip structure, and a plurality of partitions are arranged in parallel and at intervals along the length direction of the pit body.
[0014] In a preferred embodiment of the present invention, the separator is a scrap steel billet.
[0015] As described above, the slow cooling equipment in the utility model can effectively improve the impact resistance of the side walls and the inner walls by arranging columns and high-temperature resistant metal plates on the side walls and the inner walls to prevent collision during hoisting of the billets; even if the slow cooling material hits the inner wall of the pit when it is hoisted into the pit, it can prevent the side walls and the inner wall surfaces from falling off, effectively improving the structural stability of the slow cooling pit, ensuring the thermal insulation effect of the slow cooling pit, and increasing the service life of the slow cooling pit. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.
[0017] Figure 1 :Partial elevation of the side of the slow cooling device provided by the utility model Figure 1 .
[0018] Figure 2 :Partial elevation of the side of the slow cooling device provided by the utility model Figure 2 .
[0019] Figure 3 : A partial elevation view of the bottom of the slow cooling device provided by the utility model.
[0020] Description of Figure Numbers:
[0021] 1. Side wall; 11. Embedded parts;
[0022] 2. Bottom plate;
[0023] 3. Column;
[0024] 4. High temperature resistant metal plate; 41. First fastener;
[0025] 5. Separator;
[0026] 6. Thermal insulation structure; 61. Insulation board; 62. Lightweight brick; 63. Clay brick; 64. Slag layer. DETAILED DESCRIPTION
[0027] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.
[0028] like Figures 1 to 3 As shown, this embodiment provides a slow cooling device, including a slow cooling pit surrounded by side walls 1 and a bottom plate 2, wherein a plurality of inner walls are arranged in the slow cooling pit and the inner cavity of the slow cooling pit is divided into a plurality of pit bodies; a plurality of columns 3 are arranged at intervals on the inner wall of the side wall 1 and the two side walls of the inner wall, a high temperature resistant metal plate 4 is connected between two adjacent columns 3, and an insulation plate is laid on the high temperature resistant metal plate 4; the column 3 is connected to the side wall 1 or the inner wall, the high temperature resistant metal plate 4 is connected to the side wall 1 by a plurality of first fasteners 41, and the two high temperature resistant metal plates 4 on both sides of the inner wall are connected to the inner wall by a plurality of second fasteners.
[0029] Therefore, the slow cooling equipment in this embodiment can effectively improve the impact resistance of the side wall 1 and the inner wall by arranging columns 3 and high-temperature resistant metal plates 4 on the side wall 1 and the inner wall to prevent collision during hoisting of the billet; even if the slow cooling material hits the inner wall of the pit when it is hoisted into the pit, it can prevent the side wall 1 and the inner wall surface from falling off, effectively improving the structural stability of the slow cooling pit, ensuring the thermal insulation effect of the slow cooling pit, and increasing the service life of the slow cooling pit.
[0030] Specifically, the slow cooling pit and each pit body formed therein are rectangular structures with an opening at the top, and a corresponding slow cooling pit cover is also provided at the top opening of each pit body. A plurality of columns 3 are arranged at intervals in the horizontal direction, and each column 3 is arranged vertically. The columns 3, the high temperature resistant metal plates 4 and the insulation board should all be made of high temperature resistant and heat insulating materials. Preferably, the columns 3 are steel columns, the high temperature resistant metal plates 4 are steel plates, and the insulation board is an aluminum silicate fiberboard. The thickness of the aluminum silicate fiberboard is determined according to needs, and is generally 120-180mm. For example, in this embodiment, its thickness is 150mm, and the graduation temperature (i.e., the temperature that can be tolerated) is 1050°C.
[0031] The side wall 1, the inner wall and the bottom plate 2 are all concrete structures, the first fastener 41 is a direct-buried bolt and is pre-buried in the side wall 1, and the second fastener is a through bolt, so that the steel plate on the side wall 1 and the steel plate on the inner wall are fixed by the first fastener 41 and the second fastener. It can be understood that corresponding through holes are provided on the inner wall, and the through bolts pass through the through holes and are connected to the steel plates on both sides.
[0032] Generally, the column 3 is welded and fixed to the high temperature resistant metal plate 4. Figure 1 and Figure 2 Embedded parts 11 are pre-buried in the side wall 1 and the inner wall, and the columns 3 are fixed to the corresponding embedded parts 11 by welding.
[0033] Further, see Figure 3 A plurality of insulation structures 6 are laid on the bottom plate 2 corresponding to each pit body, and a separator 5 is provided between two adjacent insulation structures 6. The insulation structure 6 can improve the insulation effect and heat resistance temperature of the bottom of the slow cooling pit, and the top surface of the bottom plate 2 is divided into areas by the separator 5, and steel can be placed on the separator 5 to prevent the steel from damaging the insulation structure 6.
[0034] In a specific embodiment, the partition 5 is a long strip structure, and a plurality of partitions 5 are arranged in parallel and spaced apart along the length direction of the pit body. The partition 5 here can be made of, for example, scrap steel.
[0035] In order to improve the thermal insulation effect, as a preferred embodiment, the thermal insulation structure 6 includes an insulation board 61, a lightweight brick 62 and a clay brick 63 laid sequentially from bottom to top. Further preferably, the thermal insulation structure 6 also includes a water slag layer 64 laid on the clay brick 63 for thermal insulation. The entire thermal insulation structure 6 adopts a composite masonry structure of thermal insulation bricks and lightweight casting materials, and is composed of a composite structure of clay bricks 63, lightweight bricks 62, thermal insulation boards 61, etc., which can effectively improve the thermal insulation effect.
[0036] In summary, the slow cooling equipment in this embodiment, by arranging steel columns and steel plates on the side walls 1 and the inner walls, laying aluminum silicate fiberboards on the steel plates, and laying insulation boards 61, lightweight bricks 62, clay bricks 63 and slag layers 64 on the bottom plate 2, not only improves the thermal insulation effect of the slow cooling pit and ensures the overall performance of the slow cooling material, but also prevents the inner wall and bottom of the pit from being hit by the blanks, thereby enhancing the structural stability of the slow cooling and increasing the service life of the slow cooling pit.
[0037] The above is only an illustrative embodiment of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model.
Claims
1. A slow cooling device, characterized in that: It comprises a slow cooling pit surrounded by side walls and a bottom plate, wherein a plurality of inner walls are arranged in the slow cooling pit and the inner cavity of the slow cooling pit is divided into a plurality of pit bodies; A plurality of columns are arranged at intervals on the inner wall of the side wall and on both side walls of the inner wall, a high temperature resistant metal plate is connected between two adjacent columns, and an insulation plate is laid on the high temperature resistant metal plate; the columns are connected to the side wall or the inner wall, the high temperature resistant metal plate is connected to the side wall through a plurality of first fasteners, and the two high temperature resistant metal plates on both sides of the inner wall are connected to the inner wall through a plurality of second fasteners.
2. The slow cooling device according to claim 1, characterized in that: The columns are steel columns, the high temperature resistant metal plates are steel plates, and the heat insulation plates are aluminum silicate fiber boards.
3. The slow cooling device according to claim 1, characterized in that: The side wall, the inner wall and the bottom plate are all concrete structures, the first fastener is a direct-buried bolt pre-buried in the side wall, and the second fastener is a through bolt.
4. The slow cooling device according to claim 1, characterized in that: The upright column is fixed to the high temperature resistant metal plate by welding.
5. The slow cooling device according to claim 1, characterized in that: Embedded parts are pre-buried in the side walls and the inner walls, and the columns are fixed to the corresponding embedded parts by welding.
6. The slow cooling device according to claim 1, characterized in that: A plurality of heat-insulating structures are laid on the bottom plate corresponding to each of the pit bodies, and a partition is provided between two adjacent heat-insulating structures.
7. The slow cooling device according to claim 6, characterized in that: The thermal insulation structure comprises thermal insulation boards, lightweight bricks and clay bricks which are laid sequentially from bottom to top.
8. The slow cooling device according to claim 7, characterized in that: The thermal insulation structure also includes a slag layer laid on top of the clay bricks.
9. The slow cooling device according to claim 6, characterized in that: The separator is a long strip structure, and a plurality of the separators are arranged in parallel and at intervals along the length direction of the pit body.
10. The slow cooling device according to claim 6, characterized in that: The separator is a scrap steel billet.