The fuel ratio in small blast furnaces exceeds that of large blast furnaces, a phenomenon determined by fundamental principles in metallurgical physics and chemistry. Small blast furnaces, characterized by their squat design, have shorter material columns compared to large blast furnaces. Consequently, the gas heating of the charge is insufficient,…
In ironmaking production, maintaining the stability of blast furnace operations is crucial. Key parameters influencing this stability include furnace temperature, ore batch weight, slag alkalinity, charge ratio, wind pressure and temperature, and top pressure. Furnace temperature Maintaining stable furnace temperature helps keep the drop zone height proper, stabilize the differential…
Under the condition of using solid carbon fuel (coke + pulverised coal) in conventional blast furnace, reducing carbon fuel consumption is the most direct and effective measure to reduce CO2 emission. In the iron and steel industry, by around 2030, the fuel ratio of blast furnace should be generally reduced…
Blast furnace is a black box, how to understand the various changes within the blast furnace well, one way is to reference the anatomy of the blast furnace, supplemented by a variety of theoretical calculations and practical experience to deduce the changes within the furnace; another way is to apply some visualisation technology to…
Blast furnace charging operation refers to the control of the position and thickness of the furnace charge in the blast furnace production process, so as to adjust the key technical and economic indicators such as the permeability of the charge column and the utilisation of gas. The charging system is…
Main Equipments & Refractory In Blast Furnace (BF) Process Area Area Equipment Refractory Feeding system Feeder, screen, weighing, dust cover and tape conveyor, feeding belt (or truck, truck hoist), iron remover, electric hoist, etc.; Cast stone lining, furan cement Top system Bell-less top charging device (including hopper, sealing valve, tank,…
Blast furnace ironmaking is a dominant process in the ironmaking industry, known for its mature technology and significant output advantages. More than 90% of the world’s iron is produced using blast furnace ironmaking. This process is divided into nine major systems based on their functions. 1.Raw material system The primary…
