Category: Blast Furnace

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…

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…

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…

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,…

Reducing pollutant emissions is a significant challenge for all ironmaking plants. The key is to control the emissions from processes that generate large amounts of discharges. From the initial design phase of a new project or the reconstruction of a blast furnace, it is crucial to carefully consider suitable solutions…

The public and auxiliary facilities of blast furnace ironmaking mainly includes storage and transportation of raw materials and fuel facilities, thermal facilities, gas facilities, water supply and drainage facilities and HVAC facilities. At project preliminary design, the storage and transportation facilities for raw materials and fuel are divided five sectors.…

Thermal system in blast furnace project includes blower station, cold air, steam and compressed air devices. The axial flow blower has the advantages of high flow rate, high efficiency, wide operation area, light weight, small size, etc., which can be adapted to the operating requirements of the blast furnace with…

Blast furnace water system mainly divides into soft replenishment water, closed-circuit soft water , purified circulating water, straight water, slag treatment water, and blower station purified circulating water system (steam blower station is equipped with desalinated water supply and regeneration waste liquid drainage system), and in addition, the fire-fighting water,…

Gas system of blast furnace mainly includes gas purification, TRT (blast furnace gas (waste heat) turbine power generator) and blast furnace gas discharge tower, etc. Blast furnace gas purification adopts dry bag dust removal, that features high dedusting efficiency, no water consumption, low energy consumption and high automation. After the…

Electrical system of blast furnace divides into High-voltage (HV) and Low-Voltage (LV) power supply and distribution,electrical transmission and control, process detection and control, basic automation. High-voltage power supply and distribution facilities The high-voltage power distribution of blast furnace is generally 10kV, and the total power supply of upper level is…