Stable kiln liner of asphalt rotary kiln

The invention relates to an asphalt rotary kiln, in particular to a stable kiln liner of an asphalt rotary kiln. The stable kiln liner is divided into a part from a kiln front cover to a transition section and a part from the transition section to a kiln end. A liner of the part from the kiln front cover to the transition section adopts a double-layer precast block brick mode, a heat preservation layer is made of light pouring materials, and a working layer is made of ultra-low cement combined with high-purity corundum-mullite pouring materials. The kiln liner adopts four fixed precast blocks which are distributed at 360 degrees, and a precast block brick is built between every two fixed precast blocks in a welding mode. The part from the transition section to the kiln end adopts a mode combining double-layer precast block bricks and pouring materials, a heat preservation layer is made of light pouring materials, a working layer is made of ultra-low cement combined with high-purity corundum-mullite ...