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What are the refractory materials for electric arc furnace?
Updated: 2022-04-28 Attention:
What are the refractory materials for electric arc furnace? You know what? How to do a good job of dust prevention and dust removal in refractory factory? Do you understand? The editor of the electric arc furnace manufacturer tells you:
First of all, let us know what kind of furnace electric arc furnace is. Electric arc furnace is an industrial furnace that generates electric arc heating through metal electrode or non-metal electrode. Common electric arc cards include three-phase electric arc furnace, consumable electrode electric arc furnace, single-phase electric arc furnace and resistance electric arc furnace. The body of electric arc furnace is composed of furnace door, furnace cover, tapping trough and furnace body. The bottom and wall of electric arc furnace are alkaline.
Electric arc furnace steelmaking is divided into high-power electric arc furnace, ordinary power electric arc furnace and super power electric arc furnace according to the transformer capacity of each ton of furnace capacity. Electric arc furnace steelmaking is to input electric energy into the electric arc furnace through graphite electrode, and the electric arc between electrode end and furnace charge is used as the heat source of steelmaking. Electric arc furnace uses electric energy as heat source, which can adjust the atmosphere in the furnace, which is very conducive to smelting steel containing more easily oxidized elements. Shortly after the invention of electric arc furnace steelmaking, it has been used to smelt alloy steel and has been greatly developed.
In recent years, the electric arc furnace equipment and smelting technology have been gradually improved, the power industry has developed rapidly, and the cost of electric arc furnace steelmaking has gradually decreased. At present, electric arc furnace steelmaking can produce not only alloy steel, but also ordinary carbon steel. Its output is increasing in the total output of steel in major industrial countries. Refractory used in the construction of electric arc furnace. Electric arc furnace is a kind of electric furnace steelmaking equipment with the electric arc between electrode head and charge as the heat source. The development of electric arc furnace technology is to develop DC electric arc furnace, bottom gas supply mixing and bottom tapping on the basis of high power. The development and application of these new varieties of refractory materials are inseparable from these achievements. At the same time, the consumption of refractory materials is also reduced and easy to control automatically. The electric arc furnace is composed of furnace top, furnace wall, furnace bottom and tapping trough.
The fire-resistant furnace top, also known as the furnace cover, is dome shaped and movable. The outer ring is a water jacket steel structure. During smelting, the furnace top has always been in a high-temperature state and will be affected by the sudden change of temperature. If the chemical erosion of furnace gas and slag powder, the radiation of electrode arc and the flushing of smoke and dust, as well as the dust accumulated on the furnace top will also produce pressure, which will hinder its heat dissipation. The furnace top is also affected by machinery during lifting.
Vibration and poor working conditions are the weak links of the whole furnace lining. Therefore, the service life of electric furnace refers to the service life of electric furnace top. DC arc.
Because the furnace adopts single electrode structure, there is no hot spot area, the water-cooling area of the furnace top increases, and the service conditions of refractory materials are obvious. After entering the 1980s,
Because of the expansion of electric arc furnace capacity and the rapid improvement of unit power, the working conditions on the furnace top have become more harsh, resulting in earth shaking changes in the refractory used.
Well, the above is the introduction of relevant information about refractory materials for electric arc furnace. If you want to know more relevant information, please pay attention to the official website: http://www.apple21.cn/
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