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Industry knowledge|The application of Radar level Transmitter in the process flow of steel productio

DATE: 2020-12-03
BROWSE TIMES: 101

Industry knowledge|The application of Radar level Transmitter in the process flow of steel production in the metallurgical industry

 

 The metallurgical industry refers to the mining, beneficiation, and sintering of metal ores, smelting and processing them into metal materials. Divided into: (1) Ferrous metallurgical industry, that is, the industrial sector that produces iron, chromium, manganese and their alloys. It mainly provides raw materials for modern industry, transportation, infrastructure and military equipment; (2) Non-ferrous metallurgical industry, which is production Non-ferrous metal refining industrial sectors, such as copper smelting, aluminum, lead-zinc, nickel-cobalt, tin smelting, precious metals, rare metals and other industrial sectors. Let's take a look at the process flow of steel production in the metallurgical industry.

Industry knowledge|The application of Radar level Transmitter in the process flow of steel productio

 

Ironmaking

Ironmaking methods mainly include blast furnace method, direct reduction method, smelting reduction method, etc. The principle is that the ore obtains reduced pig iron through physical and chemical reactions in a specific atmosphere (reducing substances CO, H2, C; suitable temperature, etc.). Except for a small part of pig iron used for casting, most of it is used as raw material for steelmaking.

 

The smelting principle of blast furnace ironmaking

 Iron ore, coke and lime are the raw materials for ironmaking. After sintering, iron ore is charged into a blast furnace to produce molten iron.

 

Steelmaking

Steelmaking is the process of decarburization, heating and alloying of molten iron through oxidation reaction. Its main task is to decarburize, deoxidize, heat up, remove gas and non-metallic inclusions, and alloy. The smelted molten steel is continuously cast or forged into billets. The modern steel industry generally uses continuous casting processes to produce billets.

 

Main equipment of steelmaking plant: converter, electric furnace, continuous casting machine


Converter steelmaking

Converter steelmaking process: molten iron and recycled steel scrap are used as raw materials, and oxygen is blown in the converter to reduce the carbon content to 0-1.5% to produce molten steel.

 

Electric furnace steelmaking

Electric furnace steelmaking process: Electric furnace (EAF) generates heat through electrode arc discharge to melt scrap and pig iron to produce molten steel. The secondary refining process is then used to fine-tune the composition, temperature and cleanliness of the molten steel.

 

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