SR Smelting Furnace

Electric arc furnace vs blast furnace are the two main steel production processes today. Blast furnaces rely on coke as a reducing agent and heat source, using iron ore as the main raw material, resulting in high carbon emissions and representing a long-process steelmaking process.  Electric arc furnaces, on the other hand, primarily use scrap steel as raw material, generating heat through an electric arc using graphite electrodes. They do not require coke, have lower energy consumption, and are more flexible, making them suitable for short-process production. Today, let's understand the differences between them and compare their carbon emissions. Differences between Electric Arc Furnaces and Blast Furnaces 1. Raw Materials & Principles: Blast Furnace: Uses iron ore (mainly Fe₂O₃) and coke (C). The core reaction is the reduction of iron ore by coke, a process that directly produces a large amount of CO₂. `Fe₂O₃ + 3CO → 2Fe + 3CO₂` Electric Arc Furnace: The main raw material i...

A ladle furnace, also known as a ladle refining furnace (LF/LRF), is an important secondary refining equipment in modern steelmaking processes.  It is primarily used to further adjust the composition, control the temperature, and remove inclusions from molten steel after primary refining in a converter or electric arc furnace, to meet the production requirements of high-quality steel grades. Basic Functions of a Ladle Refining Furnace Heating & Holding Fine-tuning of Composition Desulfurization Removal of Inclusions and Purification of Molten Steel Homogenization of Composition and Temperature Ladle Furnace : Temperature Difference Between Slag & Liquid Metal In an LF refining furnace, the temperature difference between the slag and the liquid metal (molten steel) is typically very small, generally controlled within ±20℃, or even close to thermal equilibrium. Specific analysis is as follows: 1. Typical Temperature Range of Molten Steel and Slag Based on available data: Molt...

Ferro silicon is widely used in metal smelting, serving as an important deoxidizer in steelmaking, a crucial reducing agent in light metal smelting, and an indispensable raw material in the metallurgical industry.  Due to its high energy consumption, the vast majority of ferrosilicon production worldwide takes place in developing and underdeveloped regions, requiring a guaranteed supply of electricity, coal, and mineral resources.  The core of this production chain is the submerged arc furnace. It is through this unique and highly efficient electrothermal metallurgical equipment that ferrosilicon is produced from ore. Characteristics of Submerged Arc Furnaces:  A submerged electric furnace is essentially a giant resistance-heated reactor. Its outer shell is made of thick steel plates, while the inner lining is constructed of high-quality carbon or magnesia bricks capable of withstanding temperatures approaching 2000°C. Conductive copper or self-baking electrodes are embed...

  Electric arc furnace smelting of low-carbon steel is the core and high-level embodiment of modern EAF steelmaking technology. Its no longer simply "melting scrap steel," but a precisely controlled metallurgical process. Low-carbon transformation is achieved through the adoption of new processes such as Direct Reduced Iron (DRI) + Electric Arc Furnaces. Sanrui Electric Furnace steelmaking technology significantly shortens the smelting cycle, reduces power consumption and electrode consumption, and achieves a carbon dioxide emission reduction of over 40kg per ton of steel. Combining green raw materials, energy conservation and consumption reduction, and intelligent process models, EAFs have achieved breakthroughs in low-carbonization and high efficiency. Electric Arc Furnace Smelting of Low-Carbon Steel Technology I. Goals and Challenges Goal:  To produce ultra-low-carbon steel with a carbon content ≤ 0.08%, or even ≤ 0.03%, while ensuring the purity of the molten steel (low...