Slag baffle prefabricated part of tundish

Abstract

The utility model discloses a slag baffle prefabricated part of a tundish, and belongs to the technical field of steel casting. The prefabricated part comprises a slag baffle, and the slag baffle comprises a plurality of through holes penetrating through the middle of the slag baffle and a plurality of expansion grooves formed in the two sides of the slag baffle; the tundish comprises a feeding port and a discharging port, the tundish further comprises an installation groove formed in the tundish, and the slag baffle is inserted into the installation groove. The slag baffle prefabricated part of the tundish can be manufactured in a factory environment, the process is more stable, the production efficiency can be improved, meanwhile, the on-site installation process can be simplified, and the installation time and the labor cost are reduced; through the arrangement of the expansion groove, thermal expansion stress generated by temperature change can be effectively released, so that deformation or damage of the slag baffle caused by thermal stress is reduced; and meanwhile, through the wavy surface design of the slag baffle, the surface area of the slag baffle can be increased, so that the wear resistance and impact resistance of the slag baffle are enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of steel casting technology, and in particular to a prefabricated slag baffle plate for an intermediate ladle. Background Technology

[0002] In modern smelting technology, the tundish is used to transport molten metal from the smelting furnace to the sand casting mold. Its function is to ensure that the molten metal flows into the mold evenly and stably, so as to ensure the stability of the casting process and the quality of the product. It is an indispensable piece of equipment in the casting process. The slag baffle of the tundish is one of its key components, mainly used to block slag in the molten metal and ensure the purity and quality of the final product.

[0003] With the rapid development of the steel industry, the performance requirements for tundishes are constantly increasing. Traditional slag baffles often face problems such as wear, erosion, and expansion deformation under high temperature, high pressure, and molten metal erosion. As a result, in actual smelting processes, the service life of the tundish is much longer than that of the slag baffles, and the slag baffles often need to be replaced more frequently. Therefore, it is particularly important to develop slag baffle prefabricated components that are easy to replace, resistant to high temperatures, and wear-resistant. To address the above problems, we propose a slag baffle prefabricated component for tundishes. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated baffle plate for an intermediate ladle, which meets the structural requirements of easy replacement, high temperature resistance, and wear resistance.

[0005] To solve the above-mentioned technical problems, this utility model provides a prefabricated slag baffle plate for an intermediate ladle, including a slag baffle plate, wherein the slag baffle plate includes multiple through holes penetrating its middle portion and multiple expansion grooves disposed on both sides thereof;

[0006] The intermediate tundish includes a feed inlet and a discharge outlet, as well as an installation groove disposed therein, and the slag baffle is inserted into the installation groove.

[0007] Preferably, the surface of the slag baffle facing the feed inlet is transversely wavy, and when the slag baffle is in the installation position, the transverse cross-section is a trapezoidal shape with a wavy upper bottom edge, and the installation groove matches the cross-section of the slag baffle.

[0008] Preferably, the slag baffle plate further includes a slag filtering mechanism facing the feed inlet side.

[0009] Preferably, the filter residue mechanism includes a filter tank and multiple filter slits formed on one side of the filter tank.

[0010] Preferably, the thickness of the slag baffle is between 50 mm and 100 mm.

[0011] Preferably, the diameter of the through hole is between 10 mm and 20 mm.

[0012] Preferably, the baffle plate includes a pair of lifting holes opened at its top.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The slag baffle prefabricated component of the intermediate ladle of this utility model is made by prefabrication. The prefabricated slag baffle can be manufactured in the factory environment, the process is more stable, the quality control is more stringent, the production efficiency can be improved, and the on-site installation process can be simplified, reducing installation time and labor costs.

[0015] 2. The slag baffle prefabricated component of the tundish of this utility model can effectively release the thermal expansion stress caused by temperature changes by setting an expansion groove, thereby reducing the deformation or damage of the slag baffle caused by thermal stress.

[0016] 3. The slag baffle prefabricated component of the tundish of this utility model has a corrugated surface design, which can increase the surface area of ​​the slag baffle, thereby enhancing its wear resistance, impact resistance and extending its service life. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a prefabricated slag baffle plate for an intermediate ladle provided by this utility model;

[0018] Figure 2 This is a structural schematic diagram of a prefabricated slag baffle plate for an intermediate ladle provided by this utility model from another angle;

[0019] Figure 3 This is an installation diagram of a prefabricated baffle plate for an intermediate ladle provided by this utility model;

[0020] In the diagram: 1. Slag baffle plate; 101. Through hole; 102. Expansion tank; 103. Slag filter mechanism; 103a. Filter tank; 103b. Filter slot; 104. Lifting tool hole; 2. Tundish; 201. Feed inlet; 202. Discharge outlet; 203. Installation slot. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0024] This utility model provides a prefabricated slag baffle plate for an intermediate ladle. Please refer to [link / reference]. Figures 1-3 The system includes a slag baffle plate 1, which has multiple through holes 101 penetrating its middle and multiple expansion grooves 102 disposed on both sides thereof; and an intermediate ladle 2, which includes a feed inlet 201 and a discharge outlet 202, and also includes an installation groove 203 disposed inside it, in which the slag baffle plate 1 is inserted; the surface of the slag baffle plate 1 facing the feed inlet 201 is transversely wavy, and when the slag baffle plate 1 is in the installation position, its transverse cross-section is a trapezoidal shape with a wavy upper bottom edge, and the installation groove 203 matches the cross-section of the slag baffle plate 1.

[0025] The slag baffle 1 also includes a slag filtering mechanism 103 facing the discharge port 202; the slag filtering mechanism 103 includes a filter tank 103a and multiple filter slits 103b opened on one side of the filter tank 103a; the thickness of the slag baffle 1 is between 50mm and 100mm; the diameter of the through hole 101 is between 10mm and 20mm; the slag baffle 1 includes a pair of lifting holes 104 opened on its top.

[0026] It should be noted that both the slag baffle 1 and the tundish 2 are made of special refractory materials. Their special material composition makes them excellent in terms of mechanical impact resistance and thermal insulation performance. The corrugated design of the slag baffle helps to distribute the temperature evenly, reduce thermal stress, and lower the risk of hot crack formation. The trapezoidal cross-sectional shape can disperse the stress to a certain extent and reduce stress concentration. This can improve the overall structural strength and durability of the slag baffle and also help the flow of molten metal.

[0027] Preferably, the slag baffle 1 is plate-shaped and is used to confine the strong eddies caused by the impact of the ladle pouring into a local area, prevent the turbulent diffusion from causing surface fluctuations that would entrain slag into the molten steel, and block the floating slag on the surface of the molten steel. By effectively blocking slag and impurities, the slag baffle 1 can improve the purity of the molten metal, reduce the generation of inclusions, and thus improve the mechanical properties and appearance of the casting.

[0028] Preferably, the slag baffle 1 is a prefabricated component that can be detached and installed. It is combined with the tundish 2 through the mounting groove 101b. During use, the worn or corroded slag baffle 1 can be replaced without replacing the entire tundish 2, thereby reducing production costs.

[0029] Preferably, there are two lifting holes 104, which are evenly opened on the upper surface of the slag baffle plate 1. The lifting holes 103 are threaded holes, which facilitates the installation and lifting of the prefabricated slag baffle plate 1.

[0030] Preferably, the expansion tank 102 is a series of spaced-apart empty tanks with a square shape inside, which can effectively release the thermal expansion stress caused by temperature changes. The filter tank 103a is a square groove that is connected to all the through holes 101. Multiple transverse and parallel filter slits 103b are opened on the outlet side of the filter tank 103a. The filter tank 103a can effectively collect and store slag, avoiding the accumulation of slag inside the feed inlet 201, thereby reducing the difficulty of cleaning. The design of the filter slits 103b allows fluid to pass through, while blocking larger scum from entering the discharge port 202. The diameter of the through holes 101 is small, generally between 10mm and 20mm.

[0031] In use, molten steel is first injected into the tundish 2 through the feed port 201. During injection, slag will form a layer of slag on the surface of the molten steel. As the molten steel flows, the slag will also move towards the edge and accumulate. The slag baffle 1 is installed in the middle of the tundish to block the slag. The molten metal can flow out smoothly from the bottom of the slag baffle 1. When the liquid level in the tundish 2 drops, the tundish 2 is tilted, and the slag on its surface will enter the filter tank 103a through the through hole 101. The filter tank 103a is used for filtration, and the molten steel flows out from the filter slot 103b, which will collect the slag in the filter tank 103a. After the slag in the filter tank 103a settles, it will settle at the bottom of the tank, which is convenient for collecting waste slag. When the slag baffle prefabricated part is replaced, it is lifted and replaced by a hoisting device holding the hoisting hole 104.

[0032] In summary, the prefabricated slag baffle of this utility model is manufactured using a prefabrication method. Prefabricated slag baffles can be manufactured in a factory environment, resulting in a more stable process, stricter quality control, and improved production efficiency. It also simplifies the on-site installation process, reducing installation time and labor costs. Furthermore, the expansion groove effectively releases thermal expansion stress caused by temperature changes, thereby reducing deformation or damage to the slag baffle caused by thermal stress. Simultaneously, the corrugated surface design of the slag baffle increases its surface area, enhancing its wear resistance, impact resistance, and extending its service life.

[0033] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A prefabricated slag baffle plate for an intermediate ladle, characterized in that, include: The slag baffle (1) includes a plurality of through holes (101) penetrating its middle portion and a plurality of expansion grooves (102) disposed on both sides thereof. The intermediate package (2) includes a feed inlet (201) and a discharge outlet (202), and also includes an installation groove (203) disposed inside it, wherein the slag baffle (1) is inserted into the installation groove (203).

2. The prefabricated slag baffle plate for an intermediate ladle as described in claim 1, characterized in that, The surface of the slag baffle (1) facing the feed inlet (201) is wavy in the horizontal direction. When the slag baffle (1) is in the installation position, the horizontal cross section is a trapezoidal shape with the upper bottom edge in the shape of a wavy line. The installation groove (203) matches the cross section of the slag baffle (1).

3. A prefabricated slag baffle plate for an intermediate ladle as described in claim 2, characterized in that, The baffle plate (1) also includes a slag filter mechanism (103) facing the discharge port (202).

4. A prefabricated baffle plate for an intermediate ladle as described in claim 3, characterized in that, The filter cake mechanism (103) includes a filter tank (103a) and multiple filter slits (103b) opened on one side of the filter tank (103a).

5. A prefabricated slag baffle plate for an intermediate ladle as described in claim 1, characterized in that, The thickness of the slag baffle (1) is between 50 mm and 100 mm.

6. A prefabricated baffle plate for an intermediate ladle as described in claim 1, characterized in that, The diameter of the through hole (101) is between 10 mm and 20 mm.

7. A prefabricated slag baffle plate for an intermediate ladle as described in claim 1, characterized in that, The slag baffle (1) includes a pair of lifting holes (104) opened on its top.

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