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RCB Oxygen Gun: Efficient Energy Supplier for Electric Arc Furnace Steelmaking

06 Jun,2024

RCB Oxygen Gun: Efficient Energy Supplier for Electric Arc Furnace Steelmaking

Hoop oxygen gun

05 Jun,2024

Hoop oxygen gun

Problems needing attention in bottom blowing argon of electric arc furnace

09 Apr,2024

Problems needing attention in bottom blowing argon of electric arc furnace

In the 1980 s, companies such as Thyssen Krupp Steel Company in Germany and Union Carbide Company in the United States tried to install bottom blowing devices at the bottom of the electric arc furnace, but their longevity and safety issues were not resolved. In the early 1990 s, the Central Iron and Steel Research Institute put forward the concept of "top-bottom combined blowing of electric arc furnace", that is, based on power supply, oxygen blowing above the molten pool and argon blowing at the bottom of the furnace are used to achieve energy saving and consumption reduction in electric arc furnace steelmaking. The research was once established as the "Seventh Five-Year Plan" project of the Ministry of Metallurgical Industry, and industrial tests were carried out in the electric arc furnace of Great Wall Special Steel Company, but the project failed to achieve engineering due to various technical reasons. At the same time, the non-contact bottom blowing developed by Thyssen Krupp in Germany in 1992 was successfully applied in a steel company in South Africa, and the economic effect was also very significant, but the technology was not promoted. In addition, research on bottom argon blowing in the 165-ton electric furnace of the Dofasco double furnace shell in North America has also been carried out, as shown in the figure below.

How to use the cluster carbon oxygen gun reasonably to improve the benefit of electric furnace steelmaking

09 Apr,2024

How to use the cluster carbon oxygen gun reasonably to improve the benefit of electric furnace steelmaking

In China, more than 70% of electric arc furnaces use furnace door carbon and oxygen guns. It can be seen that furnace door carbon and oxygen guns are important to electric arc furnace smelting. The reason is that the price of natural gas is high, the consumption is large, and the effect after use is not obvious. Therefore, the furnace door carbon and oxygen guns play a major role. In order to increase the stirring effect of furnace door carbon and oxygen guns, many enterprises have continuously increased the flow rate of furnace door carbon and oxygen guns, what's more, the flow rate of the carbon and oxygen gun in the furnace door reaches 5000 Nm3/h, while the flow rate and pressure are constantly increasing, and the outlet pressure is as high as 16kg.

Pressure pipeline audit passed smoothly

17 May,2023

Pressure pipeline audit passed smoothly

On May 16, 2023, the long-prepared manufacturing audit of pressure pipeline components was officially carried out.

How to Transform from Chemical Steelmaking to Steelmaking in Electric Arc Furnace --- Development of Cluster Carbon Oxygen Gun in China

16 May,2023

How to Transform from Chemical Steelmaking to Steelmaking in Electric Arc Furnace --- Development of Cluster Carbon Oxygen Gun in China

At present, there are a lot of domestic scrap electric arc furnace has been put into production, the manufacturers in the continuous technical reform on the basis of has achieved fruitful results, whether it is output or other technical and economic indicators are rising rapidly, for these indicators are not discussed here. This paper only from the perspective of chemical steel and steelmaking to put forward some suggestions for the transformation of electric arc furnace.

All staff health examination

28 Mar,2023

All staff health examination

The development of enterprises can not be separated from the efforts and efforts of employees, in recent years, with wave after wave of new coronary pneumonia positive attacks, from employees to enterprises, from families to society on the physical and mental health of more and more attention. In June 2023, the long-prepared annual employee physical examination activity officially kicked off. According to the different positions of the company's employees, in order to improve efficiency, the company conducted batch physical examination, and the employees coordinated time to participate in the physical examination on business trips and debugging. The employees showed high enthusiasm one after another!

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