Ceramic fiber, also known as aluminum silicate, is currently a refractory material with low thermal conductivity and good heat insulation and energy saving effects except nano-materials. As a ceramic fiber furnace lining, it has many advantages such as light weight, high temperature resistance, good heat preservation effect, and convenient construction. It is a high-quality industrial furnace lining material. The following issues should be paid attention to in application:
01. The ceramic fiber lining does not need to be baked after construction, so the lining should be protected before starting to prevent rainwater, water vapor, etc. from soaking.
02. In order to prevent the sulfur dioxide in the fuel and flue gas from corroding the furnace wall, a high-temperature anti-corrosion coating should be applied to the inner surface of the furnace wall during construction, and the metal aluminum foil gas barrier layer should be considered in the design.
03. The interlayer temperature of the composite lining cannot be ignored. If the thickness of the ceramic fiber material on the fire-facing surface is thin, the interlayer temperature will increase, and the backing material will be damaged by overheating, which will inevitably destroy the integrity of the entire furnace lining. Reduce the lining life.
04. The material and welding of the anchors should be safe and reliable. Improper material selection or poor welding will cause the root of the anchor to corrode and fall off, resulting in damage to the lining.
05. The welding of the steel plate on the top of the heating furnace and the connection between the top of the furnace and the convection chamber must be fully welded and tight to prevent rainwater from entering the furnace and damaging the lining.
06. Prevent the furnace lining from being damaged due to vibrations caused by people leaving the furnace roof and transporting objects during construction and production emergency repairs.
07. When the furnace is operated under positive pressure, the application of ceramic fiber lining should be paid great attention to.
