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The grinding technologies for ceramic production include two kinds --- production by dry-process and by wet-process. The latter is common. Wet-process Production Line Ball mill + drier: The raw material is sent to the ball mill and ground to be slurry by adding 30-40% water. Then the slurry is dried by drying tower with water content controlled at 7%. But this method features long drying time and low yielding.
Dry-process Production Line Vertical mill (or T-typed mill)＋pelletizer：The material is sent to the mill directly. And then the pelletizer works to add moisture of material. After that, the fluidized bed dries the powder and the water content would be controlled at 7%. Finally, the technology of grinding by pressure is taken. But this method features short drying time and high yielding.