Design of Dedusting Purification System for Steel Alloy Electric Furnace
Background Introduction
In the past few decades, electric arc furnace steelmaking (EAF) has become an extremely popular method of steelmaking, particularly amongst small and medium sized steel casinos. Compared to the traditional open-hearth process, such furnaces boast higher energy efficiency, faster melting time and higher quality products at much lower costs, leading to its great success.
However, one of the major disadvantages of using EAF is the large amount of soils and other pollutants it produces. In particular, PM2.5, a fine particulate matter created as a by-product of the steelmaking process which can cause severe air pollution (). These particulates, known as furnace smoke, can be highly toxic and contain a number of solid materials such as ash, slag and scale, which are released into the atmosphere during steelmaking.
Therefore, the development of an effective dedusting and purification system is a necessary part of an EAF steelmaking facility. A good dedusting purification system must be designed in order to ensure that the steelmaking process is not only efficient and cost effective, but also beneficial to the environment. In this paper, we discuss the design of an effective dedusting and purification system for steel alloy electric furnace.
Design of Dedusting Purification System
The dedusting and purification system should be designed based on the type of particles released in the atmosphere from the steelmaking process. The particles released from the electric arc furnaces, such as ash, slag, scale and PM2.5, differ in size, shape, and weight. Therefore, it is important that the dedusting and purification system is designed to accommodate these variables.
The most common type of dedusting and purification system used in steelmaking facilities is the fabric filter. Fabric filters consist of two chambers, an outlet chamber and an inlet chamber, connected by a filter medium, usually a woven fabric, which captures dust particles as they pass through. The outlet chamber, which is connected to the atmosphere, then releases the purified air.
Another type of dedusting and purification system used in steelmaking facilities is the electrostatic precipitator. These systems use electricity to capture particles, and can be effective in removing smaller particles, such as PM2.5.
Finally, the dedusting and purification system should be designed to include additional features, such as an activated carbon filter. Activated carbon filters can be used to further purify the air, removing volatile organic compounds and other pollutants from the air.
Conclusion
The design of a good dedusting and purification system for steel alloy electric furnace is essential for an efficient and cost-effective steelmaking process. The system should be designed based on the type of particles released in the atmosphere. The most common type of dedusting and purification system used in steelmaking facilities is the fabric filter, however other systems, such as electrostatic precipitators and activated carbon filters, can also be used.
Overall, with a properly designed dedusting and purification system, steelmakers can produce quality steel products without risking their workers or the environment.
