FURNACE TECHNOLOGY QUIZ

Stoves

Annealing furnace

Lime kiln

Soaking pit

Underfired

Recirculating

Covered

Sidefired

40

20

60

5

Open hearth furnace

Sintering furnace

By-product coke oven

Calcination kiln

Reduces the furnace draught

All of these

Increases the load on the induced draft fan

Reduces the flue gas temperature and makes the furnace atmosphere oxidising

Protect the charge from the effects of the products of combustion

Smooth out temperature inequalities on the combustion side of the muffle wall

Both A & B

Neither A nor B

Portection of the periphery of the charge from excessive radiation

Reduction in the temperature of furnace gases

Increase in heating capacity/m² of floor space

Elimination of cold spot at the bottom of the charge

All of these

Affects its crystalline structure

Is the removal of carbon from iron carbide (Fe₃C)

Is favoured by CO₂

Open hearth

Cold rolled steel coil annealing

Soaking pit

Walking beam reheating

Kcal/m³ combustion space

None of these

Kcal/hr/m³ combustion space

Kcal/hr