Desulfurization and Dross Skimming Equipment for Hot Metal Ladles: A Key Equipment for Improving Quality and Efficiency in Iron and Steel Smelting
In the modern iron and steel smelting process, hot metal pretreatment is a core link that determines the quality of steel products and reduces production costs, among which the desulfurization and dross skimming operations of hot metal ladles are even more crucial processes. As the core equipment for realizing the automation and high efficiency of this process, the desulfurization and dross skimming equipment for hot metal ladles can not only accurately remove sulfur elements and harmful dross from hot metal but also significantly improve production efficiency and reduce manual intervention. It lays a high-quality raw material foundation for the subsequent steelmaking process and has become one of the indispensable key equipment in modern iron and steel enterprises.
I. Core Functions of the Equipment: Solving the "Sulfur Harm" and "Dross Harm" Problems in Iron and Steel Smelting
Before hot metal enters the converter for steelmaking, if the sulfur content is too high or it carries a large amount of dross, it will directly lead to defects such as hot brittleness and cracks in the steel, and at the same time increase energy consumption and auxiliary material consumption during the steelmaking process. The core function of the desulfurization and dross skimming equipment for hot metal ladles is to solve these two major problems from the source through the two core actions of "desulfurization" and "dross skimming":
Accurate Desulfurization: Precisely control the desulfurizing agent through an automatic control system.
Efficient Dross Skimming: After the desulfurization reaction, dross containing impurities such as sulfides and oxides will form on the surface of the hot metal. If not removed in time, it will enter the converter along with the hot metal and cause "sulfur return". The equipment uses a mechanical dross skimming arm or a negative pressure dross suction device to fit the hot metal surface accurately, quickly and completely remove the dross. The dross skimming rate can reach more than 95%, avoiding the interference of impurities on the subsequent steelmaking.
II. Equipment Types and Applicable Scenarios
To meet the needs of iron and steel enterprises of different scales, the desulfurization and dross skimming equipment for hot metal ladles can be divided into three categories according to the production scale of iron and steel enterprises, the capacity of hot metal ladles (commonly 20-300 tons) and the level of automation. Their characteristics and applicable scenarios have their own focuses:
Integrated Desulfurization and Dross Skimming Machine: A cost-effective choice for small and medium-sized enterprises.
Split-type Automatic Unit: A high-efficiency production solution for large enterprises.
Negative Pressure Circulation Desulfurization and Dross Skimming Machine: Advanced equipment for green iron and steel production.
IV. Equipment Advantages: Promoting "Quality Improvement, Cost Reduction and Efficiency Enhancement" in Iron and Steel Production
Compared with the traditional manual desulfurization and dross skimming operations (which rely on manual addition of desulfurizing agents and manual operation with dross skimming spoons), the desulfurization and dross skimming equipment for hot metal ladles has particularly significant advantages:
Quality Improvement
Cost Reduction
Efficiency Enhancement
Safety Guarantee: The equipment adopts a remote monitoring and automatic protection system to prevent operators from directly contacting high-temperature hot metal and harmful dust. The incidence of safety accidents such as high-temperature scalds and dust inhalation is reduced by more than 90%.
V. Development Trends: Intelligence, Greenization and Integration
With the advancement of the "double carbon" goal in the iron and steel industry and the upgrading of intelligent manufacturing, the desulfurization and dross skimming equipment for hot metal ladles is developing in three major directions:
Conclusion
As a "quality improvement tool" and "cost reduction pioneer" in iron and steel smelting, the technical level of the desulfurization and dross skimming equipment for hot metal ladles directly affects the product competitiveness and sustainable development capabilities of iron and steel enterprises. In the future, with the continuous breakthroughs in intelligent and green technologies, such equipment will not only be the "auxiliary equipment" for iron and steel production but also become a core force promoting the transformation of the iron and steel industry towards high quality, low energy consumption and low emissions.
Zhangjiakou Xuanhua Innovake Drilling Machine Co., Ltd. is a joint-stock enterprise specializing in the research and development, production, and sales of metallurgical machinery and equipment for ironmaking and steelmaking.
