top and bottom blowing converter steelmaking steel pipe
Nov 09, 2020 · C.B. Li and Y. Han, The application of the combined blowing technique with CO 2 bottom blowing to the converters of Anshan Iron and Steel Company, Steelmaking, 11(1996), No. 4, p. 19. Google Scholar  CO2 Utilization in the Ironmaking and Steelmaking ProcessIn the 1970s, the scholars began to study bottom-blowing CO2 in the converter steelmaking process and found  that CO 2 can participate in the bath reaction, and its bottom-blowing agitation
It combines a bottom blowing converter with a hot blast system. The hot blast blown from top ensures that the coal injected is fully combusted and almost all the heat is transferred to the liquid bath. As a result an overall efficiency of more than 50% is reached and a wide range of scrap rates can be processed in highly productive manner. Converter steelmaking (Carbon steel) - SMS groupConverter steelmaking (Carbon Steel) Metallurgy. SMS group The pneumatic slag stopper plugs the tapping stream of the BOF converter by blowing inert gas into the tap hole at the end of steel tapping. More Information Bottom stirring. Bottom stirring with inert gas (Ar/N 2) serves to improve the homogenization of the bath. The bath/slag Experience with long BOF Campaign Life and TBM Bottom Meishan Steel in China is an integrated steelplant located close to Nanjing in Jiangsu province in China, 250 miles NW from Shanghai. The plant has a total annual capacity of 3.50m tons per year (tpy) supplying various steel grades including cold forming steel, structural steel, automotive structure steel, corrosion resistant structural steel, welding gas cylinder steel, checker plate, built
Feb 03, 2021 · In the bottom blowing O 2 CaO converter steelmaking process, a portion of the oxygen required for the whole blowing process is blown into the molten bath from the bottom of the furnace, while the remaining oxygen is blown into the molten bath from the top. With high-speed oxygen as the carrier gas, lime powder is blown into the molten bath from the bottom of the furnace. Numerical Analysis of Multiphase Flow in a Steel Oxygen Combined blowing in the steelmaking basic oxygen converter is a technique that allows more agitation in the metal bath, and gives a fast decarburization rate, accelerated removal of impurities and chemical and thermal homogenization. In this work the multiphase flow in an industrial-like basic oxygen converter with top and bottom blowing is analyzed by means of Computational Fluid Dynamics Primetals Technologies wins order from HBIS Group for In August 2020, Primetals Technologies received an order from HBIS Group Handan Iron and Steel to upgrade an existing BOF converter in the steel plant in Handan, China, to a KOBM (Kombinierter Oxygen Blown Bottom Maxhütte) converter including the complete automation system. Compared to a BOF converter, the combined blowing from top and bottom in a KOBM converter results in a better
Based on the analysis of reaction mechanism between CO 2 and molten pool elements at the steelmaking temperature, and on the calculation of materials and heat balance during converter steelmaking process with blowing CO 2, a new technology which uses CO 2 O 2 as top gas and CO 2 as bottom gas in a converter was proposed and experimented in a 30 t converter. It is found that Steel - Basic oxygen steelmaking BritannicaSteel - Steel - Basic oxygen steelmaking:More than half the worlds steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blast-furnace iron and scrap into steel. The basic oxygen furnace (BOF) is a refractory-lined, tiltable converter into which a vertically movable, water-cooled lance is inserted to blow oxygen through nozzles at Combined Blowing Process in Converter Steelmaking Apr 30, 2013 · Presently, the top and bottom combined blown converter is commonly used in primary steel making plants. In the combined blowing converter, the agitating and the mixing of the bath are forced by the top blown O2 jets and the bottom inert gas streams, which can achieve a high mixing efficiency for the bath.