1. Product description of refractory cement:
Refractory cement is also called high temperature cement. Cement with special materials used in the preparation of high-temperature (fire-resistant) concrete. Refractory cement refers to cement with a refractoriness not less than 1580°C. Refractory cement uses bauxite and limestone as raw materials, and is calcined to produce clinker with calcium aluminate as the main component and about 50% alumina content, and then ground to produce a hydraulic cementing material. According to different composition, it can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement and dolomite refractory cement. Refractory cement can be used to cement various refractory aggregates (such as corundum, calcined high alumina bauxite, etc.) to make refractory mortar or concrete, which is used as lining in cement rotary kilns and other industrial kilns.
2. Matters needing attention when baking furnace lining
(1) The 350℃ stage at room temperature is most likely to cause local bursts. Pay special attention to slow baking. If there is still a lot of steam coming out after heat preservation at 350°C, the temperature rise rate should still be slowed down.
(2) Under the conditions of poor ventilation and difficult to discharge water vapor, the heat preservation time should be extended appropriately.
(3) When baking with heavy oil, it is necessary to prevent heavy oil from spraying on the surface of the furnace lining to prevent local bursting.
(4) When using wood for baking, direct contact with the flame will often cause local heating up too quickly, which should be protected.
(5) For the newly poured refractory cement, it can be baked at least 3 days later.
(6) The refractory cement lining should also be cooled slowly to avoid forced ventilation.
Rongsheng Refractory supply refractory cement, high alumina cement, calcium aluminate cement, refractory mud and so on. If u have any question or inquiry about it, please contact with us now.
