May. 30, 2025
A ladle refining furnace refers to equipment that combines the heating and refining functions of a steelmaking furnace. It is an important metallurgical equipment used for refining the molten steel in primary furnaces (electric arc furnaces, open hearth furnaces, converters), adjusting the temperature of the steel, buffering the process, and meeting the requirements of continuous casting and rolling. The ladle furnace is one of the main equipment for refining outside the furnace. The ladle refining furnace is composed of an electrode heating system, an alloy and feeding system, a bottom permeable brick argon blowing mixing system, a temperature measurement and sampling system, a wire feeding system, a furnace cover cooling system, a dust removal system, and a control system.
The working principle of the ladle refining furnace is that vacuum and argon blowing are used for degassing, argon blowing is used for mixing, alloying, and slag adjustment, and chemical heating, arc heating, induction heating, etc. are used for temperature adjustment.
The method used to remove impurities is to blow argon into the molten steel and mix it to float up, as well as to denature the impurities. The ladle refining furnace can perform functions such as degassing, adjusting composition, adjusting temperature, and removing impurities.
Refining furnace is a training equipment for hot processing work, commonly used in black metallurgy for the final deoxidation and alloying process of molten steel. According to different training purposes, there are different classifications, and the common ones are argon blowing refining furnaces. The ladle refining furnace is a skill method that uses electric arc heating technology. It is an equipment that places the steel initially refined in a general steelmaking furnace into a specialized ladle for refining.
The ladle refining furnace is heated by submerged arc using three electrodes; On the one hand, high alkalinity rehabilitation is achieved through electrode heating, and on the other hand, deoxidation, desulfurization, and steel composition adjustment are carried out. In order to ensure sufficient contact between the molten steel and slag, promote refining reaction, and make the temperature of the molten steel uniform, argon gas is injected into the bottom of the ladle for mixing, thereby achieving homogenization of the alloy participating in the ladle in the molten steel.
The use of ladle refining furnaces can increase the following benefits for the entire enterprise: accelerating production pace and improving the overall metallurgical production power. Scope of application: Ladle refining furnaces are widely used in industries such as steel, metallurgy, etc.
The main purpose of the ladle refining furnace is that the LF type ladle refining furnace can be used for refining molten steel in primary refining furnaces (electric arc furnaces, open hearth furnaces, converters). It is an important metallurgical equipment for producing high-quality carbon steel, alloy structural steel, bearing steel, tool steel, stainless steel and other steel grades, as well as meeting the requirements of continuous casting and rolling.
Characteristics of ladle refining furnace equipment: The equipment has functions such as arc heating, argon blowing mixing, wire feeding, temperature measurement and sampling, alloying, etc. The ladle refining furnace can be selected by users based on the type of steel produced and the training process.
Composition of ladle refining furnace equipment: ladle, ladle car and drag chain equipment, heating bridge and guide roller.
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