Tundish heat preservation structure

Abstract

The utility model discloses a tundish thermal insulation structure, which relates to the field of metal smelting, and comprises a water tank and a shell, the water tank is arranged on the shell, a vacuum cavity is arranged between the water tank and the shell, one side of the water tank back to the shell is used for contacting with the surface of a tundish, and the surface of the shell is covered with a thermal insulation layer; and the water tank is communicated with a heating pipe. The device has the beneficial effects that the water tank is attached to the surface of the tundish, high-temperature liquid is stored in the water tank, the surface temperature of the water tank is increased, the water tank is prevented from absorbing surface heat of the tundish, outward loss of heat of the water tank can be reduced by designing the vacuum cavity, and therefore loss of surface heat of the water tank and the tundish is blocked; the heat preservation performance of the tundish can be further improved through the heat preservation layer, heat at a tundish molten steel injection port can be collected through the heating pipe and conveyed into the water tank, the temperature of the water tank is maintained, and the heat preservation effect of the tundish can be guaranteed through the mode that passive heat insulation and active heating are combined.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to a tundish insulation structure. Background Art

[0002] To prevent rapid heat loss from the tundish, existing technologies slow down the heat loss by providing an insulation structure on the tundish surface. However, existing insulation structures are generally made of multi-layer composite materials. This insulation structure absorbs the heat from the tundish and slowly dissipates it to the environment. However, the upper limit of its insulation effect is still relatively low. This is mainly because such insulation materials cannot generate heat themselves, so they can only slow down the heat loss from the tundish.

[0003] In combination with existing technologies, the current insulation structure is improved to further improve the insulation effect of the tundish. Utility Model Content

[0004] The purpose of the present invention is to provide a tundish insulation structure in order to solve the above problems, as described below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a tundish insulation structure, comprising a water tank and a shell, wherein the water tank is arranged on the shell, a vacuum cavity is provided between the water tank and the shell, the side of the water tank facing away from the shell is used to contact the surface of the tundish, and the surface of the shell is covered with an insulation layer;

[0007] The water tank is connected with a heating pipe for transferring heat from the molten steel filling port of the tundish to the water tank.

[0008] The above-mentioned tundish insulation structure is used to fix the water tank on the tundish surface so that the water tank surface is in contact with the tundish surface. The liquid with high specific heat capacity is heated to the highest temperature and then injected into the water tank. This can increase the surface temperature of the water tank and prevent the low temperature water tank from absorbing a large amount of heat from the tundish surface. The design of the vacuum cavity can reduce the heat loss from the water tank. The vacuum cavity can block the heat loss from the water tank and the tundish surface, thereby improving the thermal insulation of the tundish. The thermal insulation layer can further improve the thermal insulation of the tundish.

[0009] The molten steel filling port of the tundish is usually not sealed, so the heat of the molten steel will be lost from there. This heat can be collected by the heating pipe and transported to the water tank to maintain the temperature of the water tank, thereby ensuring the insulation effect of the device on the tundish.

[0010] Preferably, a valve is provided on the shell, and the valve is connected to the vacuum cavity.

[0011] Preferably, the filling port of the water tank passes through the shell and the insulation layer in sequence.

[0012] Preferably, the heating tube includes a spiral tube and two pipes, the two pipes are connected to the water tank, and the other ends of the two pipes are respectively connected to the two ends of the spiral tube.

[0013] Preferably, the surface of the pipeline is provided with heat-insulating material.

[0014] Preferably, a supporting mechanism is provided on the surface of the shell for adjusting and fixing the position of the shell.

[0015] Preferably, the support mechanism includes a fixed frame, a rotating shaft is rotatably provided on the fixed frame, a connecting plate is fixed on the surface of the rotating shaft, and the connecting plate is fixed to the shell, a gear is fixed on the surface of the rotating shaft, a threaded sleeve is fixed on the fixed frame, a clamping rod is connected to the inner thread of the threaded sleeve, and the end of the clamping rod is designed to be conical, and its end is clamped with the gear.

[0016] Preferably, fixed plates are fixed at both ends of the rotating shaft, and supporting components are provided on both sides of the fixing frame, which are respectively used to support the surfaces of the two fixed plates, and a fixing rod is fixed to the surface of the rotating shaft.

[0017] Preferably, the supporting assembly includes a fixing seat, which is fixed on a fixing frame. A bolt is threadedly connected to the fixing seat, and an end of the bolt corresponds to the fixing plate.

[0018] The beneficial effects are:

[0019] By fitting the water tank to the surface of the tundish and storing high-temperature liquid in the water tank, the surface temperature of the water tank is increased to prevent the water tank from absorbing heat from the surface of the tundish. The design of the vacuum cavity can reduce the outward loss of heat from the water tank, thereby blocking the loss of heat from the water tank and the surface of the tundish. The thermal insulation of the tundish can be further improved by the insulation layer. The heat at the molten steel injection port of the tundish can be collected by the heating pipe and transported to the water tank to maintain the temperature of the water tank. The device can ensure the thermal insulation effect of the tundish by combining passive insulation with active heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a front view structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the shell of the utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the housing of the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the top support assembly of the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Water tank; 2. Shell; 3. Insulation layer; 4. Support mechanism; 5. Filling port; 6. Valve; 7. Heating tube; 8. Spiral tube; 9. Pipeline; 10. Fixing frame; 11. Rotating shaft; 12. Fixing rod; 13. Connecting plate; 14. Fixing plate; 15. Clamping rod; 16. Threaded sleeve; 17. Gear; 18. Support assembly; 19. Fixing seat; 20. Bolt; 21. Vacuum chamber. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 5 As shown, the utility model provides a tundish insulation structure, comprising a water tank 1 and a shell 2. The water tank 1 is arranged on the shell 2. A vacuum cavity 21 is provided between the water tank 1 and the shell 2. The side of the water tank 1 facing away from the shell 2 is used to contact the surface of the tundish. The surface of the shell 2 is covered with an insulation layer 3.

[0030] The water tank 1 is connected to a heating pipe 7 for transferring heat from the molten steel filling port of the tundish to the water tank 1;

[0031] Since heat flows in one direction, the device can ensure the heat preservation effect of the device by increasing its own initial temperature, absorbing external heat, and insulating through the vacuum cavity 21 and the insulation layer 3.

[0032] As an optional embodiment, a valve 6 is provided on the housing 2 , and the valve 6 is connected to the vacuum chamber 21 , and vacuum is drawn through the valve 6 .

[0033] The filling port 5 of the water tank 1 passes through the shell 2 and the insulation layer 3 in sequence.

[0034] The heating tube 7 includes a spiral tube 8 and two pipes 9. The two pipes 9 are connected to the water tank 1, and the other ends of the two pipes 9 are respectively connected to the two ends of the spiral tube 8;

[0035] The spiral tube 8 can increase the heat absorption area of the heating tube 7. The heating tube 7 transfers heat using the principle of heating. After the heating tube 7 is heated, a temperature difference will be formed between the liquid in the heating tube 7 and the liquid in the water tank 1. The liquid with a higher temperature will flow upward. At this time, the liquid can circulate in the water tank 1 and the heating tube 7, and the heat will be driven into the water tank 1 through the liquid.

[0036] The surface of the pipe 9 is provided with a heat-insulating material, and the heat-insulating material and the heat-insulating layer 3 are both made of existing technology.

[0037] A support mechanism 4 is provided on the surface of the shell 2 for adjusting the position of the shell 2 and fixing it. The existing tundish insulation structure is fixed to the tundish with expansion bolts, which will damage the structure of the tundish. The support mechanism 4 enables the device to be installed on the surface of the tundish without damage.

[0038] The support mechanism 4 includes a fixed frame 10, on which a rotating shaft 11 is rotatably provided. A connecting plate 13 is fixed to the surface of the rotating shaft 11, and the connecting plate 13 is fixed to the housing 2. A gear 17 is fixed to the surface of the rotating shaft 11. A threaded sleeve 16 is fixed to the fixed frame 10, and a clamping rod 15 is connected to the internal thread of the threaded sleeve 16. The end of the clamping rod 15 is designed to be conical and is clamped to the gear 17.

[0039] Adjust the angle of the water tank 1 according to the shape of the tundish surface so that the water tank 1 can fit the tundish surface, and then fix the fixing frame 10 to the ground;

[0040] When the lever 15 is plugged into the gear 17 , the rotating shaft 11 can be fixed.

[0041] A fixed plate 14 is fixed at both ends of the rotating shaft 11, and a supporting assembly 18 is provided on both sides of the fixing frame 10, which is used to support the surfaces of the two fixing plates 14 respectively. A fixing rod 12 is fixed on the surface of the rotating shaft 11, and the fixing rod 12 facilitates the rotation of the rotating shaft 11. The supporting assembly 18 supports the surface of the fixing plate 14, which can further fix the rotating shaft 11.

[0042] The supporting assembly 18 includes a fixing seat 19, which is fixed on the fixing frame 10. A bolt 20 is threadedly connected to the fixing seat 19, and the end of the bolt 20 corresponds to the fixing plate 14. By rotating the bolt 20, the fixing plate 14 is supported by the end of the bolt 20, so that the rotating shaft 11 can be fixed.

[0043] With the above structure, the water tank 1 is fixed to the surface of the tundish so that the surface of the water tank 1 is in contact with the surface of the tundish. The liquid with a high specific heat capacity is heated to the highest temperature and then injected into the water tank 1. This can increase the surface temperature of the water tank 1 and prevent the low temperature water tank 1 from absorbing a large amount of heat from the surface of the tundish. The design of the vacuum cavity 21 can reduce the outward loss of heat from the water tank 1. The vacuum cavity 21 can block the loss of heat from the water tank 1 and the surface of the tundish, thereby improving the thermal insulation of the tundish. The thermal insulation layer 3 can further improve the thermal insulation of the tundish.

[0044] The molten steel filling port of the tundish is usually not sealed, so the heat of the molten steel will be lost from there. This heat can be collected by the heating tube 7 and transported to the water tank 1 to maintain the temperature of the water tank 1, thereby ensuring the insulation effect of the device on the tundish.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A tundish insulation structure, characterized by: The invention comprises a water tank (1) and a shell (2), wherein the water tank (1) is arranged on the shell (2), a vacuum cavity (21) is provided between the water tank (1) and the shell (2), a side of the water tank (1) facing away from the shell (2) is used to contact the surface of the tundish, and the surface of the shell (2) is covered with a heat-insulating layer (3); The water tank (1) is connected to a heating pipe (7) for transferring heat from the molten steel filling port of the tundish to the water tank (1).

2. The tundish insulation structure according to claim 1, characterized in that: A valve (6) is provided on the housing (2), and the valve (6) is in communication with the vacuum chamber (21).

3. The tundish insulation structure according to claim 1, characterized in that: The filling port (5) of the water tank (1) passes through the shell (2) and the insulation layer (3) in sequence.

4. The tundish insulation structure according to claim 1, characterized in that: The heating tube (7) comprises a spiral tube (8) and two pipes (9), the two pipes (9) are connected to the water tank (1), and the other ends of the two pipes (9) are respectively connected to the two ends of the spiral tube (8).

5. The tundish insulation structure according to claim 4, characterized in that: The surface of the pipe (9) is provided with heat-insulating material.

6. The tundish insulation structure according to claim 1, characterized in that: A support mechanism (4) is provided on the surface of the shell (2) for adjusting the position of the shell (2) and fixing it.

7. The tundish insulation structure according to claim 6, characterized in that: The support mechanism (4) comprises a fixed frame (10), a rotating shaft (11) is rotatably provided on the fixed frame (10), a connecting plate (13) is fixed on the surface of the rotating shaft (11), and the connecting plate (13) is fixed to the housing (2), a gear (17) is fixed on the surface of the rotating shaft (11), a threaded sleeve (16) is fixed on the fixed frame (10), a clamping rod (15) is connected to the inner thread of the threaded sleeve (16), and the end of the clamping rod (15) is designed to be conical, and the end thereof is clamped with the gear (17).

8. The tundish insulation structure according to claim 7, characterized in that: Both ends of the rotating shaft (11) are fixed with fixed plates (14), and both sides of the fixing frame (10) are provided with supporting components (18) for supporting the surfaces of the two fixing plates (14) respectively. A fixing rod (12) is fixed to the surface of the rotating shaft (11).

9. The tundish insulation structure according to claim 8, characterized in that: The supporting assembly (18) includes a fixing seat (19), which is fixed on the fixing frame (10). A bolt (20) is threadedly connected to the fixing seat (19), and the end of the bolt (20) corresponds to the fixing plate (14).

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