The candle filter is a highly efficient and precise filtration device. Its shell is made of 304, 316L, or 2205 duplex steel, and it is equipped with multiple "filter candles" as core components. It forms high-precision filter cakes through the filtration method of liquid from the outside to the inside, and is particularly good at handling materials with high solid content and viscosity. It can also achieve online automatic backwashing and slag discharge, and operates efficiently. It is widely applied in precision separation processes in industries such as chemical engineering, food, and pharmaceuticals.