Skip to content

Blast Main and Tuyere

The blast main fires hot air through the tuyere into the furnace. The temperature of the air at this section has a significant impact on the efficiency of the blast furnace operation. Monitoring the air temperature supports energy efficiency and will help lower costs in the process.

Air is added to the steel-making process to reduce the content of carbon and other impurities, by oxidation. The efficiency of this reaction depends on a consistently high air temperature. This value can be inferred from a target area, providing continuous thermal data for the process.

Temperature monitoring of the air ensures it is hot enough for efficient oxidation. This reduces energy costs from overheating, and ensures the steel created has a consistent level of purity. The fibre-optic thermometer is located away from the hot conditions and causes no interference with the process.

Recommended Product - SPOT Fibre-Optic Range

The quality and composition of iron produced in the blast furnace is directly related to the hearth temperature. This, in turn, is dependent on the temperature of the hot blast delivered from the blast furnace stoves. To maximise the efficiency of the stoves, they are operated at high temperatures, close to the safe working limit of the refractories. This makes it critical to carefully monitor the stove temperature.
Read More > Watch the Video >

  • Related Products +

    • AMETEK Land Fixed SPOT Non-contact Thermometers / Pyrometers - SPOT

      SPOT is a family of fully featured, high performance pyrometers for fixed non-contact infrared spot temperature measurements. Available in range of operating wavelengths, temperature ranges and process requirements.

      Keep Reading