Blast furnace modern design – modular construction
This article summarises the results of a comparison of two modern blast furnace designs. These designs include similar hearth, upper stack and throat armour technologies, but differ on the lining selection for bosh, belly and stack. The first design includes copper plate coolers, graphite and silicon carbide. The second design […]
By-products and emissions in the ENERGIRON direct reduction process
Steel production via the DRI-EAF route produces significantly less CO2 than the integrated BF-BOF route with its dependence on coal as the primary reductant. The latest ENERGIRON ZR direct reduction plants produce even less than other DR processes and, following desulphurisation, the waste gases provide a valuable CO2 resource for […]
Construction and operation of TISCO Taiyuan 4,350m3 blast furnace No.6
In November 2013, Taiyuan Iron & Steel (Group) Co., Ltd. (TISCO) started the new BF No.6 at their Taiyuan, Shanxi plant. It has a 4,350m3 inner volume, similarly dimensioned to the existing BF No.5, which started in 2006. The furnace is equipped with the Danieli Corus high conductivity integrated lining […]
Blast furnace iron production and use of magnesium for desulphurisation
Use of magnesium (Mg) granules for desulphurisation of blast furnace iron shows marked regional variations. In China, which produces 60% of the world’s iron, lime is the preferred desulphuriser. In the West, although iron production has fallen in recent years, Mg consumption has risen, due to the higher demand for […]
Worldsteel benchmarking systems
The World Steel Association (worldsteel) represents over 160 steel producers (including 9 of the world’s 10 largest steel companies), national and regional steel industry associations, and steel research institutes. worldsteel members represent around 85% of world steel production. worldsteel acts as the focal point for the steel industry, providing global […]
Mini mills, Micro mills, Nano mills and the Energy Saving Compact Mini mill
World electric steelmaking has increased from 595Mt in 1960 to 1,606Mt in 2013, an increase of 170% and, since their beginnings in the 1970s, a typical mini mill has increased its output from 0.50 to 3.0Mt/yr. At the same time, market requirements for regional production using local raw materials (within […]
Comparative vacuum performance calculations of mechanical booster pumps
Mechanical dry vacuum pumps are increasingly replacing traditional steam ejectors in vacuum secondary steelmaking plant applications because of their ‘greener’ credentials. It is extremely important that accurate prediction of mechanical booster capability is made, otherwise the vacuum system, when delivered, may not meet the user’s requirements, forcing changes to process […]
Processing of high strength hot rolled strips through the Thin Slab Casting and Rolling facility of TATA Steel, Jamshedpur
Thin slab casting and rolling (TSCR) also known as Compact Strip Production (CSP), was developed by SMS Semag® for the production of hot rolled strip in a compact production line. Although soft unalloyed grades were the first TSCR products, the technology has been successfully used for the production of HSLA […]
Danieli Universal Endless – DUE® – technology and latest installation in P R China
Over the past 25 years the thin slab casting and rolling process has been gaining a major market share in the production of hot rolled strip, progressively eroding the areas previously the exclusive domain of conventional mills. Danieli has progressively developed a new generation of thin slab casting and rolling […]
Achieving EAF environmental and process synergy with Tenova Technologies
Technologies and tools exist that can achieve synergy between the EAF process and reduced environmental impact. The important principle is to combine all technologies into a single operating system and ensure balanced production operations. By using Tenova’s proprietary EFSOP® as the cornerstone for process optimisation, steelmakers can be confident of […]