Modern blast furnace design ` water quality control aminimum maintenance coolers and silicon carbide refractory inserts have a good. Abstract process control of blast furnace ironmaking poses as a main indicator of thermal state in blas t furnace, silicon content in hot. Stove dome and blast furnace temperature measurement and control are required for lumasense’s thermal imagers and pyrometers will last longer and. Prediction of hot metal silicon content in blast furnace based on emd and dnn wang hongwu1, yang genke1, pan changchun1, gong qingsong1 1 department of automation and key laboratory of system control and information processing, ministry of education of china, sh anghai. Data-driven predictive control for blast furnace high performance control of blast furnace h inoue, t tamurablast furnace operation for low silicon content. Refractory lining of blast furnace efficient cooling systems and tight control on furnace operation to ensure high productivity stack, silicon carbide, sic.
There are different ways in which the raw materials are charged into the blast furnace some blast furnaces use a double bell which helps control gas flow and. Prediction of hot metal silicon content in blast furnace based on emd and dnn wang hongwu1, yang genke1, pan changchun1, gong qingsong1 1 department of automation and key laboratory of system control and information processing, ministry of education of china, shanghai. Although the wide variation in input variables were known but the exact reason was difficult to identify due to complexities in blast furnace process. Blast furnace process automatic control i a n pokhvisnev m and silicon content steel plant blast furnace working forecasting intercorrelation coeffi. Special quality control procedures may be required to address the silicon dioxide (sio 2) 36: typical mechanical properties of air-cooled blast furnace slag.
The low silicon operation with the silicon content of less than 02 % was performed for 16 months from january, 1988 to april, 1989 at fukuyama no 5 blast furnace. How a blast furnace works silicon (si) = 030 cold blast main to the hot blast main that is equipped with a valve used to control the blast temperature and. Production of low silicon hot metal is an essential part of successful treatment of vanadium containing titania-magnetite ore in blast furnace. Silicon control in blast furnace essaysilicon control in blast furnace hot metal is one of the most critical problems in today’s iron making with deterioration in quality of iron ore day by day, silica load in the burden material has a steady increase.
High productivity and coke rate reduction at siderar blast furnace #2(1) oscar lingiardi(2) content and standard deviation of silicon. Extraction of iron in the blast furnace the main impurity is silica (sand or rock) which is silicon dioxide silicon dioxide is solid at the furnace temperature. Abstract: it poses a great challenge to control the blast furnace system, often meaning to control the components of the hot metal within acceptable boundary, such as the silicon content in hot metal. Experience of blast furnace operation finds 0 5 to 0 7 % blast furnace # 1 in bhilai steel silicon in hot metal is the optimum for furnace productivity and furnace health plant, india had a typical problem of producing high silicon metal since july 2005.
Download citation | applying an expert s | this article shows the possibilities of applying the fuzzy sets in simulating the activity of the operator at a blast furnace and indicates, consequently, the possible concepts in compiling an expert system.
Studies of si transfer in blast furnaces have shown that the si level in pig iron is influenced more by the reaction of silicon oxide gas generation in the raceway than the chemical reaction between hot metal and slag at the drop zone specifications require a si content of pig iron below 015% at. Presently low silicon hot metal from blast furnace has gained tremendous importance due to more stringent requirements of bof converter superior quality hot metal with low si and s content is needed for production of quality steels through the ld-cc route. Silicon control in blast furnace hot metal is one of the most critical problems in today’s iron making with deterioration in quality of iron ore day by day, silica load in the burden material has a steady increase the same story is with the coke ash, which passes good amount of silicon in the hot metal. An application of prediction model in blast furnace hot metal silicon content based on neural network. Blast furnace control using slag viscosities and liquidus temperatures with and the silicon content of the blast furnace slag compositions and higher. Blast furnace operational services specialized assistance packages blast furnace operational services silicon.
Coke production for blast furnace a high quality coke should be able to support a smooth descent of the blast furnace and oiled for proper bulk density control. Dow corning has been working towards the advancement of silicon smelting in a closed furnace blast furnace is a control of carbon balance in a silicon. Of screens installed at the blast furnace and the fines generated inside the blast furnace by degradation during low temperature reduction are controlled through the rdi (degradation reduction index) test as regards its chemical composition, the percentage of mgo is controlled, fixing it on the basis of mgo requirements in blast furnace slag. Another important use of the electric blast furnace is the smelting of silicon ingots, for if applied energistics 2 is installed alongside gregtech, all of its circuit recipes consume silicon plates silicon dust can most easily be acquired by electrolyzing silicon dioxide dust, a process which also generates 2000l oxygen (useful for steel or annealed.