a) Name and state the functions of each of the following furnaces. (i) (ii) (iii) b) Select one of the furnaces shown at 2(a) above and answer each of the following: (i) Draw a diagram of the furnace and label the main parts; (ii) Name the materials in the charge; (iii) Describe how the metal is removed from the furnace.

Leaving Cert Engineering Furnaces: a) Name and state the functions

a) Name and state the functions of each of the following furnaces - Leaving Cert Engineering - Question 2 - 2018

Question 2

a) Name and state the functions of each of the following furnaces. (i) (ii) (iii) b) Select one of the furnaces shown at 2(a) above and answer each of the follow... show full transcript

Worked Solution & Example Answer:a) Name and state the functions of each of the following furnaces - Leaving Cert Engineering - Question 2 - 2018

Step 1

Name and state the functions of each of the following furnaces.

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Answer

Blast furnace: This furnace is used for the production of pig iron from iron ore.
Electrical arc furnace: This furnace is primarily used for the production of molten iron or scrap metal.
Basic oxygen furnace: This type of furnace is used for the production of steel from molten iron.

Step 2

Draw a diagram of the furnace and label the main parts;

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Refer to the illustration of the Blast Furnace:

Charge: The raw materials like iron ore and coke are introduced.
Double bell: Ensures prevention of air from escaping.
Tuyere: Air is blown in for combustion.
Molten iron and slag: Products that collect at the bottom.
Slag: Impurities are removed.

Step 3

Name the materials in the charge;

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Answer

In a Blast Furnace, the main materials in the charge are:

Iron ore
Coke
Limestone

Step 4

Describe how the metal is removed from the furnace.

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Answer

In the Blast Furnace, the metal is tapped from the bottom. The slag floats on top and can be removed separately. The furnace can also be tilted to pour out the molten iron.

a) Name and state the functions of each of the following furnaces - Leaving Cert Engineering - Question 2 - 2018

Worked Solution & Example Answer:a) Name and state the functions of each of the following furnaces - Leaving Cert Engineering - Question 2 - 2018

Name and state the functions of each of the following furnaces.

Draw a diagram of the furnace and label the main parts;

Name the materials in the charge;

Describe how the metal is removed from the furnace.

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