Ladle casting residue slag pot
By using a grille structure made of fireproof boards, the problem of traditional slag tank gratings being heavy and inconvenient to transport and assemble is solved, achieving lightweight, easy assembly and high economic benefits, while also having good fire resistance. .
Patent Information
- Application Number
- CN202420909419.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The grating plate of traditional ladle cast residue slag tanks is large in weight, is inconvenient for handling and assembly, and has low economic benefits.
The grille structure is made of fireproof board, with a flexural strength of ≥8.0Mpa, a volume density of 1.0~1.3g/cm3, and a fireproof level of A1. Through the spacing and connection of horizontal and vertical grille plates, it forms a lightweight and Easy-to-assemble slag tank grates.
The grid structure is light in weight, easy to transport and assemble, improves economic efficiency, has short-term fire resistance, and avoids melting and sintering problems when casting slag solidifies.
Smart Images
Figure CN222374675U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of smelting, and in particular relates to a slag pot for ladle casting residual slag. Background Art
[0002] At the end of ladle casting, in order to prevent the ladle slag from being drawn into the tundish, it is often necessary to stop pouring when the molten steel is almost finished. Generally, a certain amount of residual steel will be left in the ladle, which will be poured into the slag pot together with the ladle slag to form a slag ingot. Slag ingots are high-quality scrap steel resources, but the slag and residual steel inside are entangled with each other, and the size is too large, which does not meet the requirements for entering the furnace. Generally, they can be divided into small pieces before they can be used. The traditional method of breaking large pieces of slag ingots is to use flame cutting to break them into small pieces, which is very difficult to cut. It is not only time-consuming and labor-intensive, but also causes serious environmental pollution.
[0003] In order to solve the problem of the casting slag ingot being too large in size, the idea was to cast the casting slag into small ingots. The specific method is to set a grid plate in the slag pot in advance to divide the slag pot into several parts. At this time, the casting slag is poured into the slag pot and solidified and cooled, and it naturally becomes small pieces. The size of the furnace can be reached without cutting or with just a little cutting.
[0004] Existing slag pot grille plates are generally made of steel slag as the main raw material and silicate cement as the binder, and are formed by casting. The slag pot grille plates made in this way have a large volume density, and the total weight of a set of grille plates can reach 2.5 to 3.2 tons; such grille plates are not only not conducive to transportation and assembly, but also have low economic benefits.
[0005] In view of this, the present utility model is proposed. Utility Model Content
[0006] In order to solve the technical problems existing in the prior art, the utility model provides a ladle casting slag pot. The grille of the utility model is made of fireproof board, which has the advantages of light weight, easy transportation and assembly and high economic benefit.
[0007] The utility model includes the following technical solutions:
[0008] A first aspect of the present invention provides a ladle casting slag pot, comprising a slag pot body, wherein a grid plate structure is arranged in the slag pot body, and the grid structure is made of a fireproof board;
[0009] Wherein: the flexural strength of the fireproof board is ≥8.0Mpa, and the volume density is 1.0~1.3g / cm 3 , the fire protection grade is A1.
[0010] Furthermore, the grid structure includes a plurality of transverse grid plates and a plurality of longitudinal grid plates, the plurality of transverse grid plates are arranged at intervals, and the plurality of transverse grid plates arranged at intervals are connected through the plurality of longitudinal grid plates arranged at intervals.
[0011] Furthermore, the thickness of the transverse grid plate is ≥30 mm; and / or the thickness of the longitudinal grid plate is ≥30 mm.
[0012] Furthermore, the transverse grid plate has a thickness of 30 mm; and / or the longitudinal grid plate has a thickness of 30 mm.
[0013] Furthermore, the transverse grid plate is made of two layers of fireproof board with a thickness of 15 mm; and / or the longitudinal grid plate is made of two layers of fireproof board with a thickness of 15 mm.
[0014] Furthermore, a plurality of transverse grid plates are evenly spaced apart.
[0015] Furthermore, a plurality of longitudinal grid plates are arranged at intervals.
[0016] Furthermore, the inner surface of the slag pot body is matched with the outer surface of the grid structure.
[0017] Furthermore, the inner diameter of the slag pot body decreases from top to bottom.
[0018] Adopting the above technical solution, the utility model includes the following technical solutions:
[0019] 1. The grille of the utility model is made of fireproof board, which has the advantages of light weight, easy transportation and assembly, and high economic benefit.
[0020] 2. The grid structure of the utility model has a short-term fire resistance, and will not be melted before the casting slag solidifies; it will not sinter with the casting slag after cooling; it has a certain strength, and can prevent the solid slag from falling and damaging the grid plate when the tank is tipped.
[0021] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 This is a structural schematic diagram of a ladle casting slag pot in an embodiment of the utility model;
[0024] Figure 2 The structure of the slag pot body in the embodiment of the utility model is shown in FIG. Figure 1 ;
[0025] Figure 3 The structure of the slag pot body in the embodiment of the utility model is shown in FIG. Figure 2 ;
[0026] Figure 4 This is a schematic diagram of the structure of the transverse grid plate in the embodiment of the utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the longitudinal grid plate in the embodiment of the utility model;
[0028] In the figure: 10-slag pot body, 20-grid structure, 21-transverse grid plate, 22-longitudinal grid plate, 30-opening. DETAILED DESCRIPTION
[0029] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.
[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] This embodiment provides a ladle casting slag pot, such as Figure 1 As shown, it includes a slag pot body 10, wherein a grid plate structure 20 is arranged inside the slag pot body 10, and the grid structure 20 is made of a fireproof board;
[0032] Wherein: the flexural strength of the fireproof board is ≥8.0Mpa, and the volume density is 1.0~1.3g / cm 3 , the fire protection grade is A1.
[0033] Among them, Figure 2 , Figure 3As shown, the inner diameter of the slag pot body 10 decreases from top to bottom, which is not only conducive to pouring the casting slag into the slag pot body 10, but also easy to pour out the casting slag ingot.
[0034] In some embodiments, Figure 1 As shown, the grid structure 20 includes a plurality of transverse grid plates 21 and a plurality of longitudinal grid plates 22 . The plurality of transverse grid plates 21 are arranged at intervals, and the plurality of transverse grid plates 21 arranged at intervals are connected by a plurality of longitudinal grid plates 22 arranged at intervals.
[0035] like Figure 4 As shown, the transverse grid plate 21 is provided with an upward opening 30, and the width of the opening 30 is designed to be 40 mm (the arrow direction in the figure is the width direction); Figure 5 As shown, the longitudinal grille plate 22 is provided with a downward opening 30, and the width of the opening 30 is designed to be 40 mm (the arrow direction in the figure is the width direction); during assembly, a plurality of transverse grille plates with the openings 30 facing upward are first fixed at designated positions, and after the positions are adjusted, the longitudinal grille plates with the openings 30 facing downward are inserted one by one, and the positions are fine-tuned while being inserted, and finally the grille structure 20 is assembled. The assembled grille structure 20 is hoisted into the slag pot body 10 for installation, and then delivered to the site for use.
[0036] In some embodiments, the thickness of the transverse grid plate 21 is ≥30 mm; and / or the thickness of the longitudinal grid plate 22 is ≥30 mm. The grid structure 20 of such thickness can play an isolating role and ensure that the grid structure 20 will not melt after the casting slag solidifies.
[0037] In some embodiments, the transverse grid plate 21 is 30 mm thick; and / or the longitudinal grid plate 22 is 30 mm thick. On the basis of saving materials and ensuring more casting slag is dumped, the grid structure 20 can play an isolating role and ensure that the grid structure 20 will not melt after the casting slag solidifies.
[0038] In some embodiments, the transverse grille plate 21 is made of two layers of fireproof boards with a thickness of 15 mm; and / or the longitudinal grille plate 22 is made of two layers of fireproof boards with a thickness of 15 mm; the two fireproof boards can be fixedly connected by nailing. Because the existing specifications of fireproof boards have a thickness of 15 mm, using two layers can meet the use conditions of the grille plate, so that the grille plate can be directly assembled and connected at the existing cost, which has the advantage of reducing costs.
[0039] In some embodiments, Figure 1 As shown, a plurality of transverse grid plates 21 are evenly spaced apart.
[0040] In some embodiments, Figure 1 As shown, a plurality of longitudinal grid plates 22 are arranged at intervals.
[0041] The multiple transverse grid plates 21 and the multiple longitudinal grid plates 22 arranged at even intervals can make the obtained slag ingot more uniform in size, thereby reducing or avoiding the cutting of the slag ingot.
[0042] In some embodiments, the inner surface of the slag pot body 10 is adapted to the outer surface of the grid structure 20. Figure 1 The adaptation can be understood as: the ends of the transverse grid plates 21 and the longitudinal grid plates 22 of the grid structure 20 are in contact with and matched with the inner surface of the slag pot body 10; this can achieve a better isolation effect on the casting slag.
[0043] Preferably, the fireproof board is a titanium-magnesium fireproof board; the titanium-magnesium fireproof board has excellent lightness, fire resistance, corrosion resistance, and certain strength, and is very suitable for manufacturing the grid structure 20. It can not only effectively separate the casting slag, but also prevent it from melting.
[0044] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.
[0045] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of multiple components or the interaction relationship between multiple components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0046] In the description of the present invention, it should be understood that all terms used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present invention.
[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A ladle casting slag pot, comprising a pot body (10), wherein a grid structure (20) is arranged inside the pot body (10), characterized in that: The grid structure (20) is made of a fireproof board; Wherein: the flexural strength of the fireproof board is ≥8.0Mpa, and the volume density is 1.0~1.3g / cm 3 , the fire protection grade is A1.
2. The ladle casting slag pot according to claim 1, characterized in that: The grid structure (20) comprises a plurality of transverse grid plates (21) and a plurality of longitudinal grid plates (22); the plurality of transverse grid plates (21) are arranged at intervals, and the plurality of transverse grid plates (21) arranged at intervals are connected via a plurality of longitudinal grid plates (22) arranged at intervals.
3. The ladle casting slag pot according to claim 2, characterized in that: The transverse grid plate (21) has a thickness of ≥30 mm; and / or the longitudinal grid plate (22) has a thickness of ≥30 mm.
4. The ladle casting slag pot according to claim 2, characterized in that: The transverse grid plate (21) has a thickness of 30 mm; and / or the longitudinal grid plate (22) has a thickness of 30 mm.
5. The ladle casting slag pot according to claim 2, characterized in that: The transverse grid plate (21) is made of two layers of fireproof board with a thickness of 15 mm; and / or the longitudinal grid plate (22) is made of two layers of fireproof board with a thickness of 15 mm.
6. The ladle casting slag pot according to claim 2, characterized in that: A plurality of transverse grid plates (21) are evenly spaced apart.
7. The ladle casting slag pot according to claim 2, characterized in that: A plurality of longitudinal grid plates (22) are arranged at intervals.
8. The ladle casting slag pot according to claim 1, characterized in that: The inner surface of the slag pot body (10) is matched with the outer surface of the grid structure (20).
9. A ladle casting slag pot according to claim 1 or 8, characterized in that: The inner diameter of the slag pot body (10) decreases from top to bottom.