Name the metals produced from each of the furnaces listed below:
(i) Blast furnace;
(ii) Basic oxygen furnace;
(iii) Electric arc furnace - Leaving Cert Engineering - Question 2 - 2019
Question 2
Name the metals produced from each of the furnaces listed below:
(i) Blast furnace;
(ii) Basic oxygen furnace;
(iii) Electric arc furnace.
Select one of the furn... show full transcript
Worked Solution & Example Answer:Name the metals produced from each of the furnaces listed below:
(i) Blast furnace;
(ii) Basic oxygen furnace;
(iii) Electric arc furnace - Leaving Cert Engineering - Question 2 - 2019
Step 1
Name the metals produced from each of the furnaces listed below:
(i) Blast furnace;
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Answer
The metal produced from a blast furnace is pig iron, which is derived from the smelting of iron ore, typically using coke and limestone as flux.
Step 2
(ii) Basic oxygen furnace;
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Answer
A basic oxygen furnace produces steel. It utilizes oxygen blown into the molten iron to reduce its carbon content and produce steel.
Step 3
(iii) Electric arc furnace.
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Answer
The electric arc furnace also produces steel, primarily by melting scrap steel or direct reduced iron using electrical energy.
Step 4
Select one of the furnaces listed at Q2(a) above and with the aid of a suitable diagram, answer each of the following:
(i) Label the main parts of the furnace;
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Answer
For this question, I will select the Blast Furnace. The main parts are:
Double bell
Tuyere
Molten Iron (tapped from the bottom)
Slag (byproduct)
Charging shaft (for raw materials)
Step 5
(ii) List the materials used in the charge;
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Answer
The materials used in the charge for a blast furnace include:
Iron ore
Coke (as fuel)
Limestone (as a flux)
Step 6
(iii) Describe how the charge is heated.
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Answer
The charge is heated in the blast furnace by the combustion of coke. As the coke burns, it generates heat, which is crucial for melting the iron ore. Air is blown through the tuyere into the furnace to support the combustion, intensifying the heat and promoting the smelting process.
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