Sand Single Drum Dryer

Introduction：Mining single-drum dryer utilizes a “mechanical spreading + hot air convection” mechanism. It achieves highly energy-efficient dehydration through innovative lifting plates and optimized process flow (co-current/counter-current). Its wide compatibility (including slag, chemical materials, and biomass) and significant energy efficiency (thermal efficiency exceeding 80%) make it a key piece of equipment for improving resource utilization and reducing carbon emissions in the mining and building materials industries. A single-drum mining dryer consists of a drum, a lifting plate, a drive system (motor + reducer + roller), a support device, sealing rings, a hot air furnace, and a dust removal unit.

Working principle：Wet material is delivered to the hopper by a belt conveyor or bucket elevator. It then enters the hopper's feeder through a feeding pipe and into the feed end. The feeding pipe's slope should be greater than the material's natural inclination to ensure smooth material flow into the dryer. The dryer drum is a rotating drum slightly inclined to the horizontal. Material is fed at the higher end, while the heat carrier enters at the lower end, interacting with the material in countercurrent flow. Sometimes, the heat carrier and material flow together into the drum. Lifting plates are installed on the inner wall of the drum to lift and drop the material, increasing the contact surface between the material and the airflow, thereby increasing the drying rate and promoting material forward movement. The dried material falls onto the conveyor belt through the discharge port and is driven into the finished product warehouse.