rotary kiln anchor point

The maximum temperature of the rotary kiln for firing pellets is about 1000°C, and so is the temperature of the pellets. The temperature in the transition zone is lower, 400-600°C, so as long as the porosity is low, the lining refractory material can be used.
       Generally, the new rotary kiln is lined with high-alumina bricks or low-porosity bricks, and low-porosity clay bricks are used in the transition zone. Phosphate bricks are also used, but not as much.
       If it is used for several years and casted with Blast Furnace Grate Bars as the lining, the kiln body will be deformed, because the kiln lining has good air tightness, and the lining is integrated, so there will be no connection gaps like when using high-alumina bricks (use bricks during construction) When masonry is supported by refractory clay, joint gaps will appear). Prefabricated bricks mixed with Stainless Steel Grate Bars are also useful as the steel is built into the prefabricated bricks for easy welding to the kiln inner shell. Another benefit is that Heat Resistant Stainless Steel Grate Bars will save welding costs on the number of Anchor bars after precast brick masonry. And it is more convenient when changing the lining.