1Cr17Mn6Ni5N stainless steel is instead of grade 1Cr17Ni7, it is with magnetic properties after cold rolled, used for railroad cars. 1Cr17Ni7 stainless steel has high strength after cold working for railroad cars, conveyor belts, bolts and nuts. 1Cr18Ni9 stainless steel has high strength after cold working, but the elongation is…
The blast furnace feeding system includes coke belt, ore belt, material surface measuring device, and dust removal device. Each belt is equipped with unloading trolley, and the dust removal facilities include air extraction hood, air duct, adjusting gate, sealing belt and so on. The main equipment under the trough includes feeder,…
Blast furnace process automation is generally equipped with two levels of automation control system for the blast furnace: Level I is the basic automation system, Level II is the process computer system. The basic automation system consists of electrical transmission and control automation and process detection& control automation system, and its…
Process parameters of blast furnace engineering directly influence the safety of staff and plant operation. The measurement of process parameters mainly can help monitoring all systems running state well. Process control includes top pressure control, soft water closed circulation system expansion tank pressure control, combustion control of hot blast furnace…
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…
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…
Thermal system in blast furnace project include 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…
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.…
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…
