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The high-temperature flue with a diameter of 2 meters needs to use high-quality refractory bricks to ensure its stable operation and long-term use. When selecting high-temperature flue refractory bricks, the following factors need to be considered:
Refractory grade: High-temperature flue requires the use of refractory bricks that can withstand high temperature and flue gas erosion. Commonly used fire resistance grades include SK-30, SK-32, SK-34, SK-36, SK-38, etc. Generally speaking, bricks with high refractory grades such as SK-36 or SK-38 can be selected for high-temperature flues with a diameter of two meters.
Composition of materials: High-temperature flue refractory bricks are mainly composed of high-temperature refractory materials such as alumina and silicate and usually need to add a certain proportion of additives such as binders and combustion aids. Phosphate high alumina bricks with stable composition and reliable quality need to be selected.
Brick shape and specification: The brick shape and specification need to be selected according to the actual shape and size of the flue. Common brick shapes include ordinary rectangular bricks, trapezoidal bricks, wedge-shaped bricks, etc. Common specifications include 230mm*114mm*65mm, 230mm*114mm*75mm, etc.
Manufacturer reputation: The quality and performance of refractory bricks are closely related to the manufacturer’s production process, equipment, and raw materials. It is necessary to choose a refractory brick manufacturer with credibility and quality assurance.
When building a high-temperature flue with a diameter of 2 meters, it is also necessary to choose the appropriate masonry method and construction technology to ensure the firmness and airtightness of the brick wall. At the same time, it is also necessary to regularly inspect and maintain the flue, and replace aging and damaged refractory bricks in time to ensure the safe and stable operation of the high-temperature flue.
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