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CompoundsMost silicon is used industrially without purification and, in fact, is usually relatively little processed from its native form. More than 90 percent of the Earth's crust is made up of silicate minerals, which are compounds of silicon and oxygen that often carry metal ions while negatively
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Focusing on the objectives of high production efficiency, simple function, environmental friendliness, intelligent control and diversified raw materials, electric furnace steelmaking technology has been continuously developed. The goal of high efficiency of electric furnace smelting is to shorten the smelting cycle and power on time as much as possible and reduce the smelting power consumption as much as possible.
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In recent years, the annual output of crude steel in the world has ranged from 1.6 billion tons to 1.8 billion tons, including more than 400 million tons of electric furnace steel, accounting for about 25%. Except for China, the proportion of EAF steel in the global iron and steel industry has reached more than 40%. The proportion of electric furnace steel in the United States has reached 67%, which is the highest proportion of electric furnace steel in developed countries.
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The sliding nozzle tap can be used in electric furnaces and converters. Its structure is similar to that of the ladle sliding nozzle, but it is relatively large and the operation is basically the same. The sliding nozzle device developed by the British Sheffield company was successfully applied to the tapping nozzle in a 90t electric furnace for the first time.
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The electric arc furnace slag-free tapping technology is a tapping technology in which the steel slag is separated when the steel is tapped in the electric arc furnace, the slag is left in the furnace, and the molten steel flows into the ladle. Common methods include siphon tapping method, center bottom tapping method, eccentric furnace bottom tapping method, etc.
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Electric Arc Furnace Arc furnace provides a simple and effective way of melting various grades of scrap and then going ahead to refine the metal to desired specification. It is also useful in making all kinds of steels including tool steels and alloy steels. This provides a method of utilising l
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