Brief description of HZG series rotary kiln dryer

At present, rotary kiln dryers are mostly used in chemical, mining, metallurgy, fertilizer and other industries. The material has a large proportion and large particles, and it is suitable for use with a high inlet air temperature. However, the original form of the material is fibrous, light in specific gravity, watery Large portions and high temperature materials (such as turmeric saponin) have always been the key to overcome.

For this reason, the company has developed a multi-circuit Rotary Kiln Dryer based on the characteristics of the rotary kiln Dryer itself and material characteristics.

Working principle: The wet material enters the inner layer of the three-layer drum from the feeding device to realize downstream drying. The material is continuously picked up under the inner layer of the plate, scattered in a spiral way to achieve heat exchange, and the material moves to the other end of the inner layer. Entering into the middle layer for countercurrent drying, the material in the middle layer is continuously raised and advanced repeatedly, in a way of two steps forward and one step back. The drying time is prolonged, and the material reaches the best drying state here. The material travels to the other end of the middle layer and falls into the outer layer. The material travels in a rectangular multi-loop way in the outer drum, and the material that achieves the drying effect travels quickly under the action of hot air. After discharging from the drum, the wet material that has not achieved the drying effect cannot travel quickly due to its own weight. The material is fully dried in this rectangular copy board to achieve the purpose of drying.

After the heated hot air enters the kiln and contacts with the material, it conducts heat and mass transfer quickly. After the hot air contacts the wet material, the humidity drops rapidly. After the material absorbs heat, the moisture is quickly evaporated. The fine powder in the wet air is dedusted by cyclone and bag dust After filtration, the dehumidifying fan is discharged to the outside. The material enters the dryer from the feeding end, and the other end is discharged, and it works continuously. The whole process includes the material preheating process, the moisture evaporation process, and the material heating process. The hot air intake is in the same direction as the material movement. for downstream operation.

The system operates with micro-negative pressure, so the environment is very clean.