Pig iron has a very high carbon content typically 3847 1 along with silica and other constituents of dross which makes it very brittle and not useful directly as a material except for limited applications. The iron ores are found in various forms as shown below.

Pig Iron Manufacturing Process

Pig iron is produced in the blast furnace sector.

Pig iron manufacturing process. This reduction process is carried out in a furnace called blast furnace. Pig iron is the crude form of iron and is used as a raw material for the production of various other ferrous metals such as cast iron wrought iron and steel. The blast furnace Basically the blast furnace is a countercurrent heat and oxygen exchanger in which rising combustion gas loses most of its heat on the.

Table of ContentsElectric Furnace Production of Pig SteelMaking Pig Iron by Electric Furnace Regulation of CarbonPig Iron ImpuritiesLoss of Iron in the SlagAdaptability of the Process to Continuous OperationCost of Production of Pig IronPig Iron At the beginning of the use of the electric furnace for the manufacture of calcium carbide and ferro-alloys experimental work was conducted in it. 1 Electric reduction furnace 2 Low shaft blast furnace 3 Sponge iron process. The pig iron is obtained by smelting iron ores in a blast furnace.

Pig iron acts as the raw material for production of all kinds of cast iron and steel products. Blast furnaces produce pig iron from iron ore by the reducing action of carbon supplied as coke at a high temperature in the presence of a fluxing agent such as limestone. In contrast in EAF steelmaking electrical energy is used to melt the solid.

For merchant pig iron production the iron is cast into ingots. BLAST FURNACE is used for production pig iron from iron ores. Ii To most of the nations which are producing pig-iron the coke which is used as fuel is becoming either short or inaccessible.

The most common process is the use of a blast furnace to produce pig iron which is about 92-94 iron and 3-5 carbon with smaller amounts of other elements. When the temperature of the blast furnace is high the content of silicon increases in the grey pig iron- the reason for this is the increased reduction of silicon at high temperatures. The whole arrangement resembled a sow suckling her litter and so the lengths of solid iron from the shorter channels were known as pigs.

The raw materials used include ore sinter coke lime and various aggregates. The iron ore is first washed concentrated roasted in order to remove impurities such as sulphur and phosphorus as oxides. In integrated steel mills the molten iron or hot metal is transferred in torpedo ladle cars to the steel converters.

Following are the other alternative methods of pig-iron manufacture. The manufacture of iron is based on the principle of reduction of iron oxide with carbon monoxide. Pig iron is produced by smelting or iron ore in blast furnaces or by smelting ilmenite in electric furnaces.

To ensure that the production process maintains a high and stable level of quality these materials have to be metered precisely and supplied to the blast furnace in batches. It is partly refined in a cupola furnace that produces various grades of cast iron. Today there are two major commercial processes for making steel namely basic oxygen steelmaking which has liquid pig-iron from the blast furnace and scrap steel as the main feed materials and electric arc furnace EAF steelmaking which uses scrap steel or direct reduced iron DRI as the main feed materials.

Pig iron is the product of smelting iron ore also ilmenite with a high-carbon fuel and reductant such as coke usually with limestone as a flux. Pig iron is produced by smelting or iron ore in blast furnaces or by smelting ilmenite in electric furnaces. Slag and iron are tapped at regular intervals through separate tap holes.

Pig iron is an intermediate product of the iron industry in the production of steel also known as crude iron which is obtained by smelting iron ore in a blast furnace. Charcoal and anthracite are also used as fuel and reductant. Oxygen steelmaking is fuelled predominantly by the exothermic nature of the reactions inside the vessel.

Pig iron is an intermediate product of the iron industry also known as crude iron which is obtained by smelting iron ore in a blast furnace. Iron ore is converted into various types of iron through several processes. It is of great importance in the foundry and in steel making processes.

It is obtained by smelting chemical reduction of iron ore in the blast furnace. The product of the blast furnace became known as pig iron from the method of casting which involved running the liquid into a main channel connected at right angles to a number of shorter channels. PIG IRON AND CAST IRON.

Being less dense the slag floats on top of the iron.