Blast Furnace Operation Engineer Interview Questions and Answers

To detect stave cooling water leakage, various methods can be used such as visual inspection, pressure testing, temperature monitoring, and dye testing.

• Perform regular visual inspections of the stave cooling system to check for any visible signs of leakage such as water stains or wet spots.

• Conduct pressure testing by isolating sections of the cooling system and applying pressure to detect any drop in pressure, indicating a leak.

• Monitor the temperature of the cooling water at ...read more

Blower capacity and type of bearing used in mono block are important factors for efficient blast furnace operation.

• Blower capacity determines the amount of air required for combustion in the blast furnace.

• Mono block bearings are used in blowers due to their high load carrying capacity and low maintenance requirements.

• Roller bearings are commonly used in mono block bearings due to their ability to handle heavy loads and high speeds.

• Proper lubrication is essential for the smoot...read more

The type of oil used in power pack and gearbox depends on the specific requirements of the equipment.

• The oil used in power pack and gearbox should have good lubrication properties to reduce friction and wear.

• The oil should also have good thermal stability to withstand high temperatures.

• The viscosity of the oil should be appropriate for the equipment and operating conditions.

• Examples of oils used in power pack and gearbox include mineral oil, synthetic oil, and hydraulic oil.

• T...read more

The BF gas flow depends on various factors such as the size of the blast furnace, the type of fuel used, and the production rate.

• BF gas flow is measured in cubic meters per hour (m3/h)

• The flow rate can range from 1,000 to 10,000 m3/h depending on the size of the blast furnace

• The type of fuel used can also affect the BF gas flow. For example, coke produces more gas than coal

• The production rate of the blast furnace also affects the gas flow. Higher production rates result in hi...read more

The cylinder size for lower and upper bell depends on the blast furnace size and production requirements.

• The size of the cylinder should be chosen based on the blast furnace size and production requirements.

• A larger cylinder can increase production but may require more energy and maintenance.

• The material of the cylinder should also be considered for durability and heat resistance.

• Consult with experts and follow industry standards for selecting the appropriate cylinder size.