Process for reducing steel consumption of electric furnace

Abstract

The invention relates to a process for reducing steel consumption of an electric furnace. The process comprises the following steps of a feeding process, wherein scrap steel and molten iron are pouredinto the electric furnace from a first feed opening through crane hoisting to form a steel mixture; a slagging process, wherein a slag modifier is poured through a slag former adding device, and a slagging technology is carried out; a blowing process, wherein oxygen is added through an oxygen inlet for blowing, molten slag and liquid steel are formed, and the content of the liquid steel is detected in real time through a first detection device; and a tapping process, wherein the molten slag and the liquid steel are separated through a separator, the liquid steel is output through a first discharging opening, and the molten slag is output through a second discharging opening. Therefore, the blowing process is improved, the slag content is reduced, the liquid steel content is improved, theconsumption of steel materials is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of reducing the consumption of iron and steel material by an electric furnace, in particular to a technology for reducing the consumption of iron and steel material by an electric furnace. Background technique [0002] Steelmaking is a complex metal purification process that uses oxygen (such as air, oxygen) to oxidize the impurities contained in the charge. The main process includes removal of silicon, phosphorus, carbon, desulfurization, deoxidation and alloying. The task is to reduce the carbon content in pig iron to the specified range and reduce or increase the content of other elements to the specified range according to the requirements of the type of steel being made, so as to achieve the metal composition required by the final steel. [0003] Traditional electric furnace steelmaking uses scrap steel, pig iron, etc. as raw materials. The furnace material is mainly melted and heated by arc heating. T...

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Problems solved by technology

[0003] Traditional electric furnace steelmaking uses scrap steel, pig iron, etc. as raw materials, mainly through arc heating to melt and heat up the furnace material, and the consumption of steel materials is large. With the continuous rise of scrap steel prices and electricity prices, the cost pressure of electric furnace steelmaking is increasing.

[0004] At present, there are some electric furnaces to reduce the consumption of iron and steel materials, mainly through the control of oxidation reaction and dephosphorization reaction to achieve the effect of reducing the consumption of iron and steel materials and saving costs, but there is no sulfur, carbon, harmful gases and impurities in them. processing and control

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