Plasma heating tundish cover structure of tundish

Abstract

The tundish plasma heating tundish cover structure comprises the tundish cover body and the electrode holes formed in the tundish cover body, and the electrode holes can provide installation positions for electrodes, so that the tundish cover body can meet the requirements of the tundish plasma heating technology, meanwhile, the tundish baking function and the molten steel heating function are considered, and the tundish plasma heating effect is improved. According to the tundish plasma heating ladle cover structure, the motor insertion adjusting time of molten steel in a furnace is saved, the installation position can be provided for the electrode, and the technical requirement for tundish plasma heating can be met.

Description

Technical Field

[0001] This utility model belongs to the field of tundish casting billets. Specifically, this utility model relates to a tundish plasma heating cover structure. Background Technology

[0002] Currently, domestic technology for reducing the weight of large round billets in continuous casting is immature. Furthermore, due to the large cross-section, electromagnetic stirring is difficult to apply to the central area to address center segregation. Improving the internal quality and production capacity of the billets is urgently needed. Tundish plasma heating technology focuses on the development of the "low-energy, high-quality special steel" industry, enabling precise control of the molten steel temperature in the tundish, achieving constant-temperature casting, and improving product quality. Its main principle is to fully ionize the working gas using an electric arc generated by energizing the plasma gun, and then use the generated high-temperature thermal plasma to heat the molten steel in the tundish, compensating for heat loss during casting. Tundish plasma heating technology is primarily DC plasma heating technology. The plasma gun uses hollow graphite electrodes, which reduces the complexity and operating costs of the plasma heating process. It can reduce the tapping temperature by approximately 5-15°C, increase steel yield, increase the unit output of the continuous casting machine, and reduce costs by 5-20 yuan / ton. However, conventional tundish covers mainly serve for baking and casting, lacking space for electrode insertion.

[0003] To address the aforementioned problems, patent document 103252483A discloses a novel intermediate package cover. This novel cover includes a body that gradually tapers from bottom to top. A slot is provided on one side of the body, and a hook is provided on the other side. The body is divided into three layers: a lower layer (heavy castable refractory layer with a thickness of 50%-70% of the body thickness), a middle layer (light castable refractory layer with a thickness of 20%-40% of the body thickness), and an upper layer (insulation layer). The upper part of the body is covered by an outer shell, but this design fails to solve the aforementioned problems. Summary of the Invention

[0004] This utility model was developed to solve the aforementioned problems, and its purpose is to provide an intermediate ladle plasma heating cover structure that can provide an electrode mounting position and meet the requirements of intermediate ladle plasma heating technology. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides an intermediate ladle plasma heating cover structure, which includes a cover body and electrode holes disposed on the cover body.

[0006] The intermediate tundish plasma heating tundish cover structure provided by this utility model may also have the following feature: the electrode holes include anode holes and cathode holes, with the cathode holes respectively disposed on both sides of the anode holes.

[0007] The intermediate tundish plasma heating tundish cover structure provided by this utility model may also have the following feature: the cathode hole is circular and the diameter of the cathode hole is 450mm.

[0008] The intermediate tundish plasma heating tundish cover structure provided by this utility model may also have the following feature: the anode hole includes a first anode hole and a second anode hole, with the first anode hole located on one side of the second anode hole.

[0009] The intermediate tundish plasma heating tundish cover structure provided by this utility model may also have the following features: the first anode hole is a waist-shaped hole with a length of 700 mm and a width of 230 mm; the second anode hole is a waist-shaped hole with a length of 500 mm and a width of 400 mm.

[0010] The intermediate ladle plasma heating cover structure provided by this utility model may also have the following feature: the cover body is provided with casting flow channel holes, which are evenly arranged on the cover body.

[0011] The intermediate tundish plasma heating tundish cover structure provided by this utility model may also have the following feature: a temperature measuring hole is provided on the cover body.

[0012] The technical effect of this utility model is as follows: The tundish plasma heating tundish cover structure provided by this utility model includes a cover body and an electrode hole provided on the cover body. The electrode hole can provide an installation position for the electrode, so that the cover body can meet the requirements of tundish plasma heating technology, while taking into account the functions of tundish baking and molten steel heating, saving the motor insertion and adjustment time of molten steel in the furnace.

[0013] Therefore, the intermediate ladle plasma heating cover structure provided by this utility model can provide an installation position for the electrode and can meet the technical requirements of intermediate ladle plasma heating. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the intermediate tundish plasma heating tundish cover structure in an embodiment of this utility model.

[0016] The markings in the diagram are: cover body-10, electrode hole-20, anode hole-21, first anode hole-211, second anode hole-212, cathode hole-22, casting channel hole-30, and temperature measuring hole-40. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0018] Figure 1 This is a schematic diagram of the intermediate tundish plasma heating tundish cover structure in an embodiment of this utility model.

[0019] like Figure 1 As shown, the tundish plasma heating tundish cover structure provided by this utility model includes a cover body 10 and an electrode hole 20 disposed on the cover body 10. The electrode hole 20 can provide an installation position for the electrode, so that the cover body 10 can meet the requirements of tundish plasma heating technology, while taking into account the functions of tundish baking and molten steel heating, saving the motor insertion and adjustment time of molten steel in the furnace.

[0020] The electrode hole 20 includes an anode hole 21 and a cathode hole 22. The two cathode holes 22 are respectively disposed on both sides of the anode hole 21. The anode hole 21 includes a first anode hole 211 and a second anode hole 212. The first anode hole 211 is located on one side of the second anode hole 212. The first anode hole 211 and the second anode hole 212 are connected. The cathode holes 22 on both sides are used to install the cathode of the intermediate tundish plasma heating technology. The first anode hole 211 and the second anode hole 212 are used to install the anode of the intermediate tundish plasma heating technology, so that the tundish cover body 10 and the electrode hole 20 can meet the requirements of the intermediate tundish plasma heating technology.

[0021] In this embodiment, the cathode hole 21 is circular with a diameter of 450 mm; the first anode hole 211 is oblong with a length of 700 mm and a width of 230 mm; the second anode hole 212 is oblong with a length of 500 mm and a width of 400 mm. This design better matches the anode and cathode of the tundish plasma heating technology.

[0022] The cover body 10 is also provided with four pouring channel holes 30, which are evenly arranged on the cover body 10. The pouring channel holes 30 are used to realize the pouring function. The cover body 10 is also provided with a temperature measuring hole 40, which is used to measure the temperature inside the intermediate bale.

[0023] The tundish plasma heating tundish cover structure provided by this utility model includes a cover body 10 and an electrode hole 20 disposed on the cover body 10. The electrode hole 20 can provide an installation position for the electrode, so that the cover body 10 can meet the requirements of tundish plasma heating technology, while taking into account the functions of tundish baking and molten steel heating, saving the motor insertion and adjustment time of molten steel in the furnace.

[0024] Two cathode holes 22 are respectively disposed on both sides of the anode hole 21. The anode hole 21 includes a first anode hole 211 and a second anode hole 212. The first anode hole 211 is located on one side of the second anode hole 212. The first anode hole 211 and the second anode hole 212 are connected. The cathode holes 22 on both sides are used to install the cathode of the intermediate tundish plasma heating technology. The first anode hole 211 and the second anode hole 212 are used to install the anode of the intermediate tundish plasma heating technology, so that the tundish cover body 10 and the electrode hole 20 can meet the requirements of the intermediate tundish plasma heating technology.

[0025] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A plasma heating packing cover structure for an intermediate ladle, characterized in that, The device includes a cover body (10) and electrode holes (20) disposed on the cover body (10). The electrode holes (20) include an anode hole (21) and a cathode hole (22). The cathode holes (22) are respectively disposed on both sides of the anode hole (21). The cathode holes (22) are circular and have a diameter of 450 mm. The anode holes (21) include a first anode hole (211) and a second anode hole (212). The first anode hole (211) is located on one side of the second anode hole (212). The first anode hole (211) is an oblong hole with a length of 700 mm and a width of 230 mm. The second anode hole (212) is an oblong hole with a length of 500 mm and a width of 400 mm.

2. The intermediate ladle plasma heating cover structure according to claim 1, characterized in that, The cover body (10) is also provided with casting flow channel holes (30), which are evenly arranged on the cover body (10).

3. The intermediate ladle plasma heating cover structure according to claim 1, characterized in that, The cover body (10) is also provided with a temperature measuring hole (40).

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