What is the difference between cupola furnace and blast furnace?
Basic chage for cupola consists of foundry coke layers and layers of pig iron, steel scrap, home returns and it is only used for melting . Where as blast furnace is a smelting furnace which means it is used for extraction of iron from ores.
What should the height of a cupola furnace?
about 6m
What metal is produced by the cupola furnace?
cast iron
Which material is most commonly used flux added to the charge in cupola furnace?
Which of the following chemical compound, is the most common flux added to the charge in a cupola furnace? Explanation: Limestone (CaCO3) is used as Flux in cupola furnace in a proportion of about 2-4% of the metal charge.
Which of the following is NOT a furnace used for heating?
2. Which of the following is not a furnace used for heating? Explanation: Among the following, blow air furnace is not a type of furnace which is used for the heating purposes, whereas cupola, crucible and electric arc, are furnaces which are regularly used for heating.
Why steel is not produced in cupola?
Although one of the easiest types of ferrous metals to manufacture, it is very heavy, and it is also brittle, so it is a very bad choice for any type of construction, as it reacts unfavorably to any of the Five Fundamental Loads.
Which product is produced in cupola?
Cupola has been the most widely used furnace for melting cast iron i.e. Ferrous metals. The Input to Cupola is Pig Iron which is obtained from a blast furnace.
What is cupola furnace PDF?
• The cupola is a tubular furnace which produces cast iron by melting scrap and alloys. using the energy generated from the oxidation (combustion) of coke, a coal derivative. Advantages. • It is simple and economical to operate.
What are different zones in cupola furnace?
7. Melting Zone 1. Reducing Zone Various time call the protective zone expand as of combustion zone to top of the coke bed.
What is reducing zone in cupola furnace?
Reducing zone : It is located between the top of the combustion zone and the top level of the coke bed. CO2 is reduced to CO in this zone through an endothermic reaction, as a result of which the temperature falls from combustion zone temperature to about 12000C at the top of this zone.
How is a furnace powered?
Although your furnace is fuelled by gas, there are some components to it that require electricity to operate. These include: Circuit Boards – Which relay information from the thermostat and the furnace. Relays – Electrically powered switches within the system.
What is crucible furnace?
A crucible furnace is a simple and very old type of melting unit commonly used in foundry. The crucible furnace typically uses a refectory crucible with contains a metal charge. The actual crucible is a container that can withstand very high temperatures and is therefore used to melt materials such as metals.