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Molten steel transfer device capable of protecting tapping and electric furnace steelmaking system capable of protecting tapping

A transfer device and molten steel technology, applied in the field of iron and steel metallurgy and steelmaking, can solve problems such as difficulty in realizing molten steel protection, achieve good thermal insulation effect, reduce tapping temperature, and avoid direct scouring.

Active Publication Date: 2018-06-08
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can prevent the molten steel from increasing nitrogen to a certain extent, it is difficult to protect the molten steel during the process of containing the molten steel by the molten steel transfer device.

Method used

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  • Molten steel transfer device capable of protecting tapping and electric furnace steelmaking system capable of protecting tapping
  • Molten steel transfer device capable of protecting tapping and electric furnace steelmaking system capable of protecting tapping
  • Molten steel transfer device capable of protecting tapping and electric furnace steelmaking system capable of protecting tapping

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Experimental program
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Effect test

Embodiment 1

[0052] combine figure 1 and Figure 5 , a kind of molten steel transfer device that can protect tapping of the present invention comprises a ladle car 300 and a steel tapping protection pipe, and the ladle car 300 includes a transport car floor 310, a protection pipe control unit 320 and a ladle tank 330 (such as Figure 5 shown); the transport vehicle floor 310 is equipped with wheels to facilitate the movement of the ladle vehicle 300; the ladle tank 330 is fixedly arranged on the transport vehicle bottom plate 310, and the opening of the ladle tank 330 is upward; the protective tube control unit 320 is fixedly installed on the transport vehicle On the vehicle floor 310; the protective tube control unit 320 includes a vertical telescopic mechanism 321, a horizontal telescopic mechanism 322 and a rotary mechanism 323, and the vertical telescopic mechanism 321 is fixedly installed on the transport vehicle floor 310 of the ladle car 300, and the horizontal telescopic mechanism ...

Embodiment 2

[0060] The basic content of this embodiment is the same as that of Embodiment 1, except that: the pipe wall of the protective sleeve 100 is provided with an outer shell 104, a heat insulating layer 102 and a refractory material layer 101 (such as figure 2 shown); the shell 104 is made of steel structure with high mechanical strength, and the heat insulating layer 102 is made of heat insulating material, wherein the heat insulating material is glass fiber, asbestos, rock wool or silicic acid Salt, or a combination of the above; the heat insulation material of the heat insulation layer 102 can effectively limit the heat of molten steel in the protective sleeve 100 from dissipating heat to the outside of the protective sleeve 100, reducing the temperature loss in the tapping process, and then reducing the temperature of the tapping. Temperature, saving steelmaking energy consumption. The refractory material layer 101 is arranged on the inner wall of the protective sleeve 100, an...

Embodiment 3

[0062] The basic content of this embodiment is the same as that of Embodiment 2, except that a gap layer 103 (such as figure 2 As shown), that is, a gap is arranged between the shell 104 and the heat insulating layer 102, and constitutes a gap layer 103. The gap layer 103 can be a vacuum condition, or the gap layer 103 filled with any gas. The gap layer 103 of this embodiment Layer 103 is filled with air. The gap layer 103 between the shell 104 and the heat insulation layer 102 changes the heat transfer conditions of the protective sleeve 100, thereby limiting the heat transfer from the molten steel in the protective sleeve 100 to the outside, and reducing the heat loss during the tapping process of the molten steel.

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Abstract

The present invention discloses a molten steel transfer device capable of protecting tapping and an electric furnace steelmaking system capable of protecting tapping, and relates to the steelmaking technical field of steel metallurgy. The electric furnace steelmaking system comprises an electric furnace body and the molten steel transfer device. The molten steel transfer device comprises a buggy ladle and a tapping protection tube. The buggy ladle comprises a protection tube control unit and a ladle pot. The tapping protection tube is installed to the protection tube control unit. The protection tube control unit is used for controlling the tapping protection tube to move in the vertical direction or the horizontal direction. The tapping protection tube comprises a protection bushing and aconnection bushing. A bushing inlet of the protection bushing is connected with the connection bushing so as to form the through tapping protection tube. A gap is provided between molten steel and aninner wall of the protection bushing when the molten steel flows through the protection bushing. A relative closed type molten steel channel is established by the tapping protection tube, gas flow onthe molten steel surface is effectively restricted, the quantity of harmful gas such as nitrogen and hydrogen adsorbed by the molten steel is reduced, and steel quality is improved.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy and steelmaking, and more specifically relates to a molten steel transfer device capable of protecting tapping and an electric furnace steelmaking system capable of protecting tapping. Background technique [0002] The ladle tank is the transfer container for the molten steel smelting. After the molten steel smelting is completed, the ladle tank is usually used to transfer the molten steel to the next process. The molten steel transportation device is an important equipment in the molten steel transfer process, and it is also an important link in the steelmaking process. The molten steel is directly poured or poured into the ladle tank during the tapping process of the steelmaking furnace. [0003] After the molten steel is smelted in an electric furnace, the refining outside the furnace and the continuous casting process control the oxygen, nitrogen, hydrogen and temperature in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/12C21C5/52
CPCC21C5/52B22D41/12Y02P10/20
Inventor 张立强吴朝阳凌海涛彭世恒王海川刘庆王嘉乐王旭旭邬冬生叶美领
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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