12.5 Iron And Steel Production
process. Conventional BOFs have oxygen blown into the top of the furnace through a water-cooled lance. In the newer Quelle Basic Oxygen process (Q-BOP) oxygen is injected through tuyeres located in the bottom of the furnace. A typical BOF cycle consists of the scrap charge hot metal charge oxygen blow (refining) period testing for
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Basic Oxygen Furnace (BOF) SubsTech
May 31 2012 · Service life of oxygen lance is about 400 heats. The bottom blown basic oxygen furnaceis equipped with 15-20 tuyeres for injection of oxygen (or oxygen with lime powder). The tuyeres are cooled by either hydrocarbon gas (propane methane) or oilsupplied to the outer jacket of the tube.to top Refractory lining of a Basic Oxygen Furnace
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Blow-down lance for basic oxygen furnace
SUBSTANCE oscillations sensor to identify lance oscillations is located inside the blow-down lance at its bottom end. The blow-down lance has section for the blow-down lance head connection and oscillations sensor is preferably located near the connection area inside the blow-down lance.
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BOTTOM STIRRING TUYERE AND METHOD FOR A BASIC OXYGEN FURNACE
In Step 2 (Start Blow) a flow of oxygen is injected through a lance inserted through the top opening of the furnace during this process slag is formed on the top surface of the molten metal. In Step 3 (End Blow) the flow of oxygen is stopped and the lance is removed from the top opening.
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BOTTOM STIRRING TUYERE AND METHOD FOR A BASIC OXYGEN FURNACE
In Step 2 (Start Blow) a flow of oxygen is injected through a lance inserted through the top opening of the furnace during this process slag is formed on the top surface of the molten metal. In Step 3 (End Blow) the flow of oxygen is stopped and the lance is removed from the top opening.
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Properties and Control of Electric-Arc Steel Furnace Fumes
An oxygen lance leads to higher fume rele ases(10) because of the breaking Furnace process Basic single slag Basic single slag Acid oxygen blow Acid oxygen blow Basic oxygen blow Basic oxygen blow Acid Acid Acid Acid single slag Acid single slag Reference 5 7 16 6 15 2 18 20 Refer to same furnaces as Case A.
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Process Conditions and Factors affecting the Refractory
Layout of Basic Oxygen Furnace Stirring gases Ar N 2 Bottom O 2 Lance Additives bunker Tilting drive Trunnion ring Gas cooling hood down shaft Cylinder Top cone Bottom cone. 99 Sectional View of Oxygen Blowing Lance 1010 Refractory Technology Part II • Introduction • Process description Combined blowing • Charge materials
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High productivity with ELECTRIC ARC FURNACES
the furnace. After the top lance has been brought into position the oxygen blow is initiated. During the converter phase the contents of carbon silicon manganese and phos-phorus in the bath are reduced. These reactions are exothermic i.e. they gener-ate heat. Cold material like DRI or scrap is added to the furnace to utilise this energy
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Coke Ovens-Sinter-BF-BOF Route SAIL
The basic oxygen furnace ( LD convertor) is a pear shaped vessel lined inside with refractory bricks . The vessel lining consists of tar bonded dolomite /magnesia carbon bricks or other refractories. The vessel can be rotated 360 o on its axis . Oxygen is blown into the vessel with the help of water cooled lance.
Get PriceReport 9.docxBasic oxygen steelmaking(BOS BOP BOF and
Basic oxygen steelmaking is a primary steelmaking process for converting the molten pig iron into steel by blowing oxygen through a lance over the molten pig iron inside the converter. Exothermic heat is generated by the oxidation reactions during blowing. The basic oxygen steel-making process is
Get PriceFully Automatic Blowing Technique for Basic Oxygen
Steelmaking Furnace Basic Oxygen down. The hitting ratio of the carbon content and molten steel temperature increased to 80 owing to the de-velopment of dynamic control techniques using a sub- lance. However to obtain hitting ratio over 90 oxygen-blowing lance was
Get PriceROLE OF OXYGEN LANCE IN BOFe Plant Maintenance
Jun 08 2020 · The process of steel making by Basic Oxygen Furnace (BOF) uses the followings A water-cooled lance for injecting a high pressure 11-13 kg/cm2 high flow rate 1000 cu-m per min and high velocity (super-sonic) and high purity (>99.5 ) stream of oxygen onto the liquid bath for its refining.The purity of gaseous oxygen is more than 99.5 .
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Understanding Steel Making Operations in Basic Oxygen Furnace
Mar 02 2015 · The top blown converter is equipped with the O2 lance for blowing O2 into the bath. The lance is water cooled with a multi hole (ranging from 3 to 6) copper (Cu) tip. O2 flow is normally in the range of around 6 to 8 cum/min.t.
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Steel Making Process The Nomadic Engineer
Jan 28 2016 · Basic Oxygen Steel making. Hot metal from the blast furnace and steel scrap are the main materials used in Basic Oxygen Steel making (BOS). Modern furnaces (converters) will take a charge of up to 350 tonnes and convert it into steel in about 15 minutes. The plant then lowers a water-cooled oxygen lance into the converter.
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Introduction to steel making processes
Apr 16 2016 · 3. The Blow • The Gas Offtake Hood is lowered onto the Furnace. The water cooled Oxygen Lance is then lowered. This carries the hot Oxygen to the surface of the hot metal increasing the temperature in the Furnace and melting all of the metal. The Oxygen combines with the impurities to form oxides in the form of gases and slag. 4.
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Jet Process- An innovative solution in steel making
The centerpiece of the Jet Process is a converter that is equipped with bottom blowing tuyeres for the injection of oxygen coal and lime into the converter. It is complemented with a hot-blast lance system that is positioned above the converter mouth for post-combustion purposes.
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The chemistry of steelmakingthe basic oxygen furnace
The Basic Oxygen Steelmaking Process is the UK s major method for making steel. Modern furnaces will take a charge of up to 350 tonnes and convert it into steel in less than 40 minutes. The diagram shows oxygen being blown into the furnace or BOS vessel through a water cooled oxygen lance.
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Oxygen Cleaning A Validated Process is Critical for Safety
Apr 09 2021 · Oxygen Cleaning A Validated Process is Critical for Safety. Industrial oxygen is used for many purposes in a basic oxygen furnace for making steel water pollution countermeasures including sewage treatment habitability and superfund site rehabilitation and chemical processes such as production of vinyl chloride nitric acid epoxyethane
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12.5 Iron And Steel Production
process. Conventional BOFs have oxygen blown into the top of the furnace through a water-cooled lance. In the newer Quelle Basic Oxygen process (Q-BOP) oxygen is injected through tuyeres located in the bottom of the furnace. A typical BOF cycle consists of the scrap charge hot metal charge oxygen blow (refining) period testing for
Get Price
Process Conditions and Factors affecting the Refractory
Layout of Basic Oxygen Furnace Stirring gases Ar N 2 Bottom O 2 Lance Additives bunker Tilting drive Trunnion ring Gas cooling hood down shaft Cylinder Top cone Bottom cone. 99 Sectional View of Oxygen Blowing Lance 1010 Refractory Technology Part II • Introduction • Process description Combined blowing • Charge materials
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The BASIC OXYGEN STEEL-making (BOS) Process
blast furnace. 2) the vessel is stood upright and a water-cooled lance is lowered from above and oxygen is blown onto the surface at high speed. Carbon in the iron is oxidised to CO and
Get PriceProperties and Control of Electric-Arc Steel Furnace Fumes
An oxygen lance leads to higher fume rele ases(10) because of the breaking Furnace process Basic single slag Basic single slag Acid oxygen blow Acid oxygen blow Basic oxygen blow Basic oxygen blow Acid Acid Acid Acid single slag Acid single slag Reference 5 7 16 6 15 2 18 20 Refer to same furnaces as Case A.
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What is the Basic Oxygen Steelmaking Process
The basic oxygen steel-making process (BOS) is explained below by Steeloncall and as follows Liquid pig iron from a blast furnace iis filled with an enormous refractory-lined container called a ladle. The metal in the ladle is sent directly for basic oxygen steelmaking ( BOS) or to a pretreatment stage. Pretreatment of the blast furnace hot
Get PriceReport 9.docxBasic oxygen steelmaking(BOS BOP BOF and
Basic oxygen steelmaking is a primary steelmaking process for converting the molten pig iron into steel by blowing oxygen through a lance over the molten pig iron inside the converter. Exothermic heat is generated by the oxidation reactions during blowing. The basic oxygen steel-making process is
Get Price
What is the Basic Oxygen Steelmaking Process
The basic oxygen steel-making process (BOS) is explained below by Steeloncall and as follows Liquid pig iron from a blast furnace iis filled with an enormous refractory-lined container called a ladle. The metal in the ladle is sent directly for basic oxygen steelmaking ( BOS) or to a pretreatment stage. Pretreatment of the blast furnace hot
Get Price
Adoption of Sinter Addition in Steelmaking Converter to
BOF Oxygen Blowing and Lance Height After scrap and hot metal are charged oxygen is supplied through a water cooled lance continuously at different lance height above steel bath. The blowing rates and lance height vary considerably from shop to shop and
Get PriceCoke Ovens-Sinter-BF-BOF Route SAIL
The basic oxygen furnace ( LD convertor) is a pear shaped vessel lined inside with refractory bricks . The vessel lining consists of tar bonded dolomite /magnesia carbon bricks or other refractories. The vessel can be rotated 360 o on its axis . Oxygen is blown into the vessel with the help of water cooled lance.
Get Price
The BASIC OXYGEN STEEL-making (BOS) Process
blast furnace. 2) the vessel is stood upright and a water-cooled lance is lowered from above and oxygen is blown onto the surface at high speed. Carbon in the iron is oxidised to CO and
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Influence of Ladle-slag Additions on BOF-Process
After the blow-end and the oxygen lance have been raised the steel is tapped through the tap-hole by tilting the furnace. The liquid steel now also contains a considerable amount of dissolved oxygen which is removed by adding elements as Si or Al. After the BOS
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