Features of sand dryer

Features of sand dryer
1. The coal slime dryer has strong anti-overload capability, large processing capacity, low fuel consumption and low drying cost;
2. The downstream drying method is adopted. The flue gas and the wet material enter the dryer from the same side, and the high temperature flue gas can be used to obtain high evaporation intensity. The outlet temperature of the dryer is low and the thermal efficiency is high;
3. The three-cylinder dryer manufacturer can change the operating parameters according to the properties of different materials, so that the material can form a stable full-break fabric curtain in the dryer cylinder, and the quality and heat exchange is more sufficient;
4. The new feeding and discharging device eliminates the phenomenon of tumble dryer feeding blockage, discontinuity, unevenness and material return, and reduces the load of the dust removal system;
5. The new internal structure strengthens the cleaning and heat conduction of the dispersed materials, eliminates the sticking phenomenon of the inner wall of the cylinder, and is more adaptable to the moisture and viscosity of the material;
6. The dryer realizes "zero horizontal thrust", which greatly reduces the wear of the supporting roller, and the cylinder runs smoothly and reliably;
7. The dryer adopts "aligning roller device", so that the cooperation between the roller and the rolling ring is always in linear contact, thus greatly reducing the wear and power loss;
8. Product particle size and moisture can be controlled according to user requirements. When drying coal slime, the product moisture can reach below 8%, and the particle size can be controlled below 8mm.
The working principle of the coal gangue dryer is as follows: due to the viscosity of the coal gangue, the wet coal gangue is divided into the following working areas after entering the dryer during the drying process: First, the material guide area, where the wet coal gangue enters into contact with the high temperature hot air The water evaporates quickly, and the material is transported into the next working area without forming a bond when the material is moved by the large lead angle of the copy board; the second is the cleaning area, where the wet coal gangue is picked up by the copy board to form a material curtain state. When the material falls, it is easy to form the phenomenon of sticking to the drum wall. In this area, because the equipment is designed with a cleaning device, the cleaning device can reasonably clean the materials adhered to the inner wall. The block also plays a role in crushing, thereby increasing the heat exchange area and improving the drying rate; the third is the inclined lifting plate area, where the wet coal gangue is in a loose state with low moisture content, and the material has no bonding phenomenon in this area. After heat exchange, the material reaches the required moisture state and enters the discharge area; the fourth is the discharge area, where the drum does not have a copy plate, and the material rolls and slides to the discharge port in this area to complete the entire drying process.