Combined type tundish current stabilizer

Abstract

The utility model discloses a combined type tundish current stabilizer, which relates to the technical field of current stabilizers, and comprises a heat preservation shell, an inner shell is inserted in the heat preservation shell, a U-shaped seat is fixedly connected to the outer wall of the heat preservation shell, a rotating column is rotatably connected in the U-shaped seat through a rotating shaft, an elastic strip is arranged above the U-shaped seat, and the elastic strip is fixedly connected with the inner shell. The elastic strip is fixedly connected to the inner shell and attached to the outer wall of the heat preservation shell, a clamping plate is fixedly connected to the top of the rotating column, a clamping groove is formed in the end, away from the rotating column, of the clamping plate, the clamping groove is matched with the elastic strip, and a supporting strip is fixedly connected to the bottom of the rotating column. According to the combined type tundish current stabilizer, by arranging the structures such as the U-shaped base, the rotating column, the supporting strips and the elastic strips, the elastic strips are clamped into the clamping grooves and extruded, so that the heat preservation shell and the inner shell are difficult to separate, meanwhile, the supporting strips are opened and make contact with the ground, the heat preservation shell and the inner shell are supported, and the using stability of the current stabilizer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow stabilizers, in particular to a composite tundish flow stabilizer. Background Art

[0002] The tundish flow stabilizer is a functional refractory material installed at the bottom of the tundish impact zone to stabilize the flow of molten steel in the tundish water inlet area, prevent slag from being drawn into the molten steel and causing internal quality defects of the continuous casting billet, promote the floating of inclusions, and reduce the splashing of molten steel. The flow stabilizer currently used is a magnesium one-piece prefabricated part. In order to ensure the impact resistance of the flow stabilizer, it is necessary to ensure that the flow stabilizer has a thick-walled structure. Therefore, during the baking process, the moisture inside the thick wall is not easy to discharge, and cracks are easily generated, which reduces the product qualification rate. In order to solve the problem of thick wall cracking, double-layer flow stabilizers have appeared on the market.

[0003] The double-layer flow stabilizers currently in use are mostly embedded and set-type composite structures, which solve the problem of thick wall cracking. However, the connection stability between the inner and outer walls is poor during the process of containing molten steel. It is easy to loosen and separate during the long-term impact of molten steel, which in turn causes the flow stabilizer to be damaged and fail. At the same time, during the molten steel pouring process, especially in the early stage of steel pouring, there is a certain probability that the pouring direction of the molten steel will deviate from the opening of the flow stabilizer when the steel pouring worker rotates the ladle turret to control the pouring position, causing the molten steel poured at the bottom of the ladle to impact the installation firmness of the flow stabilizer, causing the flow stabilizer to float and flip over, and the installation stability of the flow stabilizer is poor.

[0004] Therefore, it is necessary to propose a composite tundish flow stabilizer to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a composite tundish flow stabilizer to solve the problems that the connection stability of the inner and outer walls is poor during the process of containing molten steel, and it is easy to loosen and separate during the long-term impact of molten steel, thereby causing damage and failure of the flow stabilizer; at the same time, during the molten steel pouring process, especially in the early stage of steel pouring, there is a certain probability that the pouring direction of the molten steel will deviate from the opening of the flow stabilizer when the steel pouring worker rotates the ladle turntable to control the steel pouring position, causing the molten steel poured at the bottom of the ladle to impact the installation firmness of the flow stabilizer, resulting in the flow stabilizer floating and flipping over, and the problem of poor installation stability of the flow stabilizer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite intermediate ladle flow stabilizer, comprising an insulation shell, an inner shell inserted into the interior of the insulation shell, a U-shaped seat fixedly connected to the outer wall of the insulation shell, a rotating column rotatably connected to the U-shaped seat via a rotating shaft, an elastic strip is arranged above the U-shaped seat, the elastic strip is fixedly connected to the inner shell, the elastic strip is adhered to the outer wall of the insulation shell, a clamping plate is fixedly connected to the top of the rotating column, a clamping groove is provided at the end of the clamping plate away from the rotating column, the clamping groove cooperates with the elastic strip, and a support strip is fixedly connected to the bottom of the rotating column.

[0007] Preferably, the U-shaped seats are provided in plurality, and the plurality of U-shaped seats are evenly distributed around the heat-insulating shell.

[0008] Preferably, an abutment assembly is provided at one end of the support bar away from the rotating column.

[0009] Preferably, the abutment assembly includes an abutment plate, a rotating rod and a support plate, and the support plates are provided in plurality. The rotating rod is rotatably connected to an end of the support bar away from the rotating column, and the support plate is fixedly connected to the rotating rod. The two support plates are respectively located at two ends of the rotating rod, and one end of the support plate away from the rotating rod is fixedly connected to the abutment plate, and the abutment plate is used to abut against the ground.

[0010] Preferably, both ends of the rotating shaft are provided with torsion springs, one end of the torsion spring is fixedly connected to the rotating column, and the other end of the torsion spring is fixedly connected to the U-shaped seat.

[0011] Preferably, a square groove is provided on the top of the heat-insulating shell, an insert block is inserted into the inside of the square groove, and the insert block is fixedly connected to the inner shell.

[0012] Preferably, the square grooves are provided in plurality, and the plurality of square grooves are evenly distributed around the axis of the heat-insulating shell.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides structures such as a U-shaped seat, a rotating column, a support bar and an elastic bar. The slot is inserted into the elastic bar and squeezes the elastic bar, so that the insulation shell and the inner shell are difficult to separate. At the same time, the support bar is opened and contacts the ground to support the insulation shell and the inner shell, thereby improving the stability of the flow stabilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a composite tundish flow stabilizer from one perspective of the utility model.

[0016] Figure 2 This is a schematic structural diagram of the composite tundish flow stabilizer of the utility model from another perspective.

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the composite tundish flow stabilizer of the utility model.

[0019] Figure 5 For this utility model Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: 1. insulation shell; 2. inner shell; 3. square groove; 4. plug block; 5. U-shaped seat; 6. rotating shaft; 7. rotating column; 8. support bar; 9. abutment plate; 10. torsion spring; 11. elastic strip; 12. clamping plate; 13. clamping groove; 14. rotating rod; 15. support plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in 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.

[0022] The utility model provides Figure 1 to Figure 5 A composite tundish flow stabilizer shown includes an insulation shell 1, an inner shell 2 is inserted into the insulation shell 1, and the interior of the inner shell 2 is the tundish molten steel impact zone. During the manufacturing process, the insulation shell 1 and the inner shell 2 are prefabricated and sintered separately, and during the assembly process, an embedded and sheathed composite structure is formed. At the same time, sintered magnesia sand can be used to fill between the two to improve the connection sealing between the insulation shell 1 and the inner shell 2.

[0023] In order to improve the stability of the assembly of the thermal insulation shell 1 and the inner shell 2, a square groove 3 is provided on the top of the thermal insulation shell 1, and an insert block 4 is inserted into the square groove 3. The insert block 4 is fixedly connected to the inner shell 2. A plurality of square grooves 3 are provided, and the plurality of square grooves 3 are evenly distributed around the axis of the thermal insulation shell 1. Specifically, when the thermal insulation shell 1 and the inner shell 2 are assembled, the insert block 4 is inserted into the corresponding square groove 3, so that the thermal insulation shell 1 and the inner shell 2 will not rotate relative to each other.

[0024] Taking into account that during the process of molten steel pouring, especially in the early stage of steel pouring, when the steel pouring worker rotates the ladle turntable to control the steel pouring position, there is a certain probability that the pouring direction of the molten steel will deviate from the opening of the flow stabilizer, causing the molten steel poured at the bottom of the ladle to impact the installation firmness of the flow stabilizer, causing the flow stabilizer to float and turn over. In order to improve the stability of the use of the flow stabilizer, a U-shaped seat 5 is fixedly connected to the outer wall of the insulation shell 1, and the U-shaped seat 5 is provided with a plurality of U-shaped seats 5. The plurality of U-shaped seats 5 are evenly distributed around the insulation shell 1. A rotating column 7 is rotatably connected to the U-shaped seat 5 through a rotating shaft 6. An elastic strip 11 is provided above the U-shaped seat 5. The elastic strip 11 is fixedly connected to the inner shell 2, and the elastic strip 11 is fitted on the outer wall of the insulation shell 1. During the assembly process of the insulation shell 1 and the inner shell 2, the plug 4 is inserted into the corresponding square groove 3, and the elastic strip 11 is squeezed and fitted on the outer wall of the insulation shell 1. The plurality of elastic strips 11 cooperate to position the inner shell 2 on the insulation shell 1, thereby improving the stability of the connection between the insulation shell 1 and the inner shell 2.

[0025] A card plate 12 is fixedly connected to the top of the rotating column 7, and a card slot 13 is provided at one end of the card plate 12 away from the rotating column 7. The card slot 13 cooperates with the elastic strip 11, and a support strip 8 is fixedly connected to the bottom of the rotating column 7. When the support strip 8 flips, the card plate 12 will be driven to flip through the rotating column 7.

[0026] In order to expand the contact area between the support bar 8 and the ground and improve the stability of use, an abutment assembly is provided at the end of the support bar 8 away from the rotating column 7, and the abutment assembly includes an abutment plate 9, a rotating rod 14 and a support plate 15. Two support plates 15 are provided. The rotating rod 14 is rotatably connected to the end of the support bar 8 away from the rotating column 7, and the support plate 15 is fixedly connected to the rotating rod 14. The two support plates 15 are respectively located at the two ends of the rotating rod 14, and the end of the support plate 15 away from the rotating rod 14 is fixedly connected to the abutment plate 9, and the abutment plate 9 is used to abut on the ground.

[0027] The flow stabilizer is placed on the ground, with the abutment plate 9 abutting against the ground, and at the same time, the end of the support bar 8 away from the rotating column 7 is flipped upward. When the support bar 8 is flipped, the top of the card plate 12 is driven by the rotating column 7 to flip toward the insulation shell 1, and the card groove 13 is inserted into the elastic strip 11 and squeezes the elastic strip 11, making it difficult to separate the insulation shell 1 and the inner shell 2. At the same time, the support bar 8 is opened and contacts the ground to support the insulation shell 1 and the inner shell 2, thereby improving the stability of the flow stabilizer.

[0028] The utility model arranges the U-shaped seat 5, the rotating column 7, the support bar 8 and the elastic bar 11 and other structures, and the slot 13 is inserted into the elastic bar 11 and squeezes the elastic bar 11, so that the insulation shell 1 and the inner shell 2 are difficult to separate, and the support bar 8 is opened and contacts the ground to support the insulation shell 1 and the inner shell 2, thereby improving the stability of the flow stabilizer.

[0029] Both ends of the rotating shaft 6 are equipped with torsion springs 10, one end of the torsion spring 10 is fixedly connected to the rotating column 7, and the other end of the torsion spring 10 is fixedly connected to the U-shaped seat 5. When the inner shell 2 needs to be taken out from the inside of the insulation shell 1, the flow stabilizer is picked up, the abutment component is squeezed away from the ground, and the restoring elastic force of the torsion spring 10 causes the support bar 8 and the clamping plate 12 to reset.

Claims

1. A composite tundish flow stabilizer, comprising a heat-insulating shell (1), characterized in that: The inner shell (2) is inserted into the interior of the heat-insulating shell (1); a U-shaped seat (5) is fixedly connected to the outer wall of the heat-insulating shell (1); a rotating column (7) is rotatably connected to the U-shaped seat (5) via a rotating shaft (6); an elastic strip (11) is arranged above the U-shaped seat (5); the elastic strip (11) is fixedly connected to the inner shell (2); the elastic strip (11) is attached to the outer wall of the heat-insulating shell (1); a clamping plate (12) is fixedly connected to the top of the rotating column (7); a clamping groove (13) is provided at one end of the clamping plate (12) away from the rotating column (7); the clamping groove (13) cooperates with the elastic strip (11); and a supporting strip (8) is fixedly connected to the bottom of the rotating column (7).

2. A composite tundish flow stabilizer according to claim 1, characterized in that: The U-shaped seats (5) are arranged in plurality, and the plurality of U-shaped seats (5) are evenly distributed around the heat-insulating shell (1).

3. The composite tundish flow stabilizer according to claim 1, characterized in that: An abutment assembly is provided at one end of the support bar (8) away from the rotating column (7).

4. A composite tundish flow stabilizer according to claim 3, characterized in that: The abutment assembly comprises an abutment plate (9), a rotating rod (14) and a support plate (15), wherein two support plates (15) are provided, the rotating rod (14) is rotatably connected to one end of the support bar (8) away from the rotating column (7), the support plate (15) is fixedly connected to the rotating rod (14), the two support plates (15) are respectively located at two ends of the rotating rod (14), the end of the support plate (15) away from the rotating rod (14) is fixedly connected to the abutment plate (9), and the abutment plate (9) is used for abutting against the ground.

5. The composite tundish flow stabilizer according to claim 1, characterized in that Both ends of the rotating shaft (6) are provided with torsion springs (10), one end of the torsion spring (10) is fixedly connected to the rotating column (7), and the other end of the torsion spring (10) is fixedly connected to the U-shaped seat (5).

6. The composite tundish flow stabilizer according to claim 1, characterized in that: A square groove (3) is provided on the top of the heat-insulating shell (1), an insert block (4) is inserted into the interior of the square groove (3), and the insert block (4) is fixedly connected to the inner shell (2).

7. The composite tundish flow stabilizer according to claim 6, characterized in that: The square grooves (3) are arranged in plurality, and the plurality of square grooves (3) are evenly distributed around the axis of the heat-insulating shell (1).

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