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Cement kiln refractory brick temperature range
  • Time:Aug 08, 2023
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The temperature range for cement kiln refractory bricks can vary depending on the specific location within the kiln and the type of brick used. Generally, cement kiln refractory bricks are designed to withstand high temperatures ranging from approximately 1,300°C (2,372°F) to 1,800°C (3,272°F).

Different zones within a cement kiln experience varying temperature profiles:

1. Preheating Zone: This zone is located at the upper part of the kiln, where raw materials are heated prior to entering the burning zone. The temperature in this zone typically ranges from 600°C (1,112°F) to 900°C (1,652°F).

2. Burning Zone: Also known as the calcining zone or the sintering zone, this is where clinker formation occurs. The temperature in the burning zone can reach as high as 1,450°C (2,642°F) to 1,500°C (2,732°F).

3. Transition Zone: This zone lies between the preheating and burning zones, where the temperature rises rapidly. The transition zone temperature typically ranges from 900°C (1,652°F) to 1,200°C (2,192°F).

4. Cooling Zone: As the name suggests, this zone is responsible for cooling down the clinker. The temperature in the cooling zone ranges from 100°C (212°F) to 300°C (572°F).

magnesia iron bricks

To withstand these extreme temperatures and thermal cycling, cement kiln refractory bricks are made from materials such as high alumina, magnesia, or dolomite, which have excellent heat resistance and chemical stability. The specific refractory brick composition and installation method can be tailored to match the temperature conditions and demands of each zone within the cement kiln.

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