What are the main parts of a blast furnace?

What are the main parts of a blast furnace?

The components of a blast furnace include the Charge, exhaust gas outlet, charging bells, gas outlet, tuyeres, taphole, bustle pipe, slag hole, refractory lining, and conveyor system.

What is the shape of blast furnace?

Blast furnaces are currently rarely used in copper smelting, but modern lead smelting blast furnaces are much shorter than iron blast furnaces and are rectangular in shape. The overall shaft height is around 5 to 6 m.

What is blast furnace?

Definition of blast furnace : a furnace in which combustion is forced by a current of air under pressure especially : one for the reduction of iron ore.

How blast furnace is heated?

The blast furnace is a brick-lined, stainless steel stack, which is heated using pre-heated air. Limestone, coke and iron ore are placed in the blast furnace and heated. The coke, limestone and iron react in the presence of heat, producing slag and liquid iron.

How is a blast furnace made?

A blast furnace is usually built with a steel case and bricks made of magnesium oxide or other refractory material inside the case. The hot furnace cannot melt these bricks. The furnace is cooled with water running inside part of the case and bricks. The process of making iron is simple.

What is the blast furnace made of?

A blast furnace is usually built with a steel case and bricks made of magnesium oxide or other refractory material inside the case. The hot furnace cannot melt these bricks. The furnace is cooled with water running inside part of the case and bricks.

Why is the blast furnace shaped?

Introduction. The blast furnace inner-shape is important to achieve the goals of high-yield, high-quality, low consumption and long life for blast furnace ironmaking. Practice has proved that the appropriate design of the furnace inner shape can improve the blast furnace smelting index and extend furnace campaigns.

Why blast furnace is used?

Blast furnaces are used to produce pig iron from iron ore for subsequent processing into steel, and they are also employed in processing lead, copper, and other metals. Rapid combustion is maintained by the current of air under pressure.

What is the height of blast furnace?

A blast furnace is a special type of furnace for smelting iron from ore. Blast furnaces are very large. They can be up to 60 metres (200 ft) tall and 15 metres (49 ft) in diameter.

Why is it called blast furnace?

Special nozzles called “tuyeres” are used to put the air in the furnace. The nozzles are at the bottom of the furnace. This process is called “blasting”. It is why it is called a “blast furnace”.

What are the parts of a blast furnace?

– Forced draft blower – Blower mounting plate – Hex bolts – Kep nuts – Fan control cord assembly – Fan control center – Wall thermostat – Blower limit control – 73B wire nut

What goes into a blast furnace?

Blast furnaces operate on the principle of chemical reduction whereby carbon monoxide converts iron oxides to elemental iron. Blast furnaces differ from bloomeries and reverberatory furnaces in that in a blast furnace, flue gas is in direct contact with the ore and iron, allowing carbon monoxide to diffuse into the ore and reduce the iron oxide. The blast furnace operates as a countercurrent

What is the function of a blast furnace?

– It can be used as a building material. – It is used in the production of cement by heating powdered limestone with clay. Cement is an ingredient in mortar and concrete. – It is a major ingredient in toothpaste. – It can be used as a food additive to provide calcium ions for strong teeth and bones. – It can be processed as a useful raw m

What happens in a blast furnace?

Availability of the metallic material of correct specification