The double cone rotary vacuum dryer is suitable for the concentration, mixing, drying, and low-temperature drying of powdered, powdery, and fibrous materials in industries such as chemical, pharmaceutical, and food (such as biochemical products). It is more suitable for drying materials that are easily oxidized, volatile, highly thermally sensitive, toxic, and do not allow the destruction of crystal structures. The function of sintering mesh: The material needs to be vacuumed inside the dryer, and the function of sintering mesh is to prevent the powder from being sucked away. The sintered mesh is often made into a quick loading interface filter element, with the fine mesh facing inward; This filter is also known as a breathing filter. Thickness 1.7mm; accuracy mostly 5 μ m.