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 principle of blast furnace operational technology and centralized gas flow by center coke charging fig 1 progress of blast furnace iron-making technology in kobe steel fig 2 control of blast furnace processing by center coke charging. Review modeling of the hot metal silicon content in blast furnace using support vector machine optimized by an improved particle swarm optimizer. The blast furnace is a counter current reactor in which the reducing gas is produced by the gasification of the carbon of the coke with the oxygen of the hot blast injected via tuyeres in the lower part of the furnace. Through the reaction mechanism and control mechanism in the process of blast furnace iron-making, the action diagram of the factors affecting the [si] content of molten iron is shown in figure 6 twenty-four influencing factors x1~x24 were extracted as the sample input index [ 43 – 45 ] which can be obtained in real time.
Methods, and may open way for more candidate tools to model and control blast furnace system in in the blast furnace ironmaking process, silicon content in hot metal is usually considered as the main indicator to the thermal state of ironmaking blast furnace, thus prediction. Study of coke moisture for blast furnace control k h gee and ja laslo bethlehem steel company bethlehem pennsylvania introduction although increased use of prepared ore burdens has greatly improved. Production of low silicon hot metal is an essential part of successful treatment of vanadium containing titania-magnetite ore in blast furnace the formation of titanium carbides and titanium nitrides very much depends on solubility of titanium in hot metal the analysis showed that with reduction.
Blast furnace operational services specialized assistance packages blast furnace operational services complementary and additionally to the application of engineering solutions in the ironmaking industry, danieli corus has this control room based tool fully integrates the operator. Silicon control in blast furnace essay 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. The control of silicon content in pig iron at lower level concentration has been regarded as one of the most important operational problems of a blast furnace, due to the following reasons: (1) to improve the quality of product (2) to meet the need of steelmaking process (3) to decrease the running cost, etc.
Although blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate tends to be slightly alkaline and does not present a corrosion risk to steel in pilings (10) or to steel embedded in concrete made with blast furnace slag cement or aggregates. In blast furnace (bf) iron-making process, the hot metal silicon content was usually used to measure the quality of hot metal and to reflect the thermal state of bf. Silicon plates are plates made of pure silicon needed primarily for solar panels this item is added by the gregtech mod silicon plates are created by putting two silicon cells in an industrial blast furnace. High temperature rotary silicon carbide tube furnace silicon carbide tube furnace application of silicon carbide tube furnace silicon carbide tube furnace pt-1200 is a temperature range of single rotary tube furnace, designed for calcining inorganic compounds to obtain better consistency. Fly ash, slag, silica fume, and natural pozzolans fly ash, ground granulated blast-furnace slag, silica fume, and natural pozzolans, such as calcined shale, calcined clay or metakaolin, are materials that, when used in conjunc- design and control of concrete mixtures.
Prediction of silicon content in blast furnace hot metal using partial least squares (pls) especially in process control and process monitoring it is a method for relating two data matrices, x and y, cessfully employed for prediction of silicon content in hot metal the pls exploits the structure of the data sets and. In the blast furnace iron-making process, the prediction of the silicon content in hot metal is one of the most important but difficult this paper proposes a novel combined algorithm based on. Control burden distribution burden control hot stoves optimization blast furnace supervision shaft simulation tapping management silicon prediction temperature prediction cohesive zone indirect reduction raceway simulation flame temperature charging of high portions of fines 7. Blast furnace based steelmaking) in the blast furnace in homogeneity the composition of the raw material is equalised, the hot metal is standardised and 1 excellent and instructive litterature on the blast furnace process is abundant.
Open document below is an essay on silicon from anti essays, your source for research papers, essays, and term paper examples. Control of slag and insoluble buildup in ladles, melting and pressure pour furnaces by r l (rod) naro, asi international, ltd, cleveland, ohio magnesium and silicon, silicates and sulfides plus a host of other complex compounds, when the furnace is pressurized, a stream of molten metal exits the vessel for mold filling these. Blast-furnace production the production of pig iron by the reduction smelting of iron ores or pelletized iron-ore concentrates in blast furnaces it is a branch of ferrous metallurgy history pig iron was known four to six centuries before the common era the blast-furnace industry took shape as a result of the development of the blooming process—the.
Modern blast furnace design ` water quality control aminimum maintenance coolers and silicon carbide refractory inserts have a good resistance against abrasion/erosion and impact and are thus preferred in the upper stack and throat armour. How a blast furnace works introduction silicon (si) = 030 - 090% sulfur (s) = 0025 - 0050% the precise filling order is developed by the blast furnace operators to carefully control gas flow and chemical reactions inside the furnace the materials. Steelmaking is the process for producing steel from iron ore and scrapin steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon are removed from the raw iron, and alloying elements such as manganese, nickel, chromium and vanadium are added to produce different grades of steellimiting dissolved gases such as nitrogen and oxygen, and entrained impurities. Experience of blast furnace operation finds 05 to 07 % silicon in hot metal is the optimum for furnace productivity and furnace health blast furnace # 1 in bhilai steel plant, india had a typical problem of producing high silicon metal since july 2005.