1. Types of wet process rotary kilns: The cement kilns used in wet process production are called wet process kilns. Wet process production is to make raw materials into slurry with a water content of 32% to 40%. Because the slurry is prepared with fluidity, the raw materials are well mixed, the raw material composition is uniform, and the quality of the burned clinker is high. This is the main advantage of wet process production.
2. Types of dry process rotary kilns: The advantages and disadvantages of wet process rotary kilns are exactly the opposite of those of wet process rotary kilns. The wet process makes raw materials into raw material dry powder, and the moisture content is generally less than 1%, so it reduces the heat required to evaporate water compared to the wet process. Hollow kilns have high heat consumption due to the high exhaust gas temperature. Dry process production makes raw materials into powder, and its fluidity is worse than mud. So the raw materials are not mixed well and the composition is not uniform.