Molybdenum Concentrate Rotary Drum Dryer 3TPH-80TPH Mineral Rotary Dryer

Molybdenum concentrate rotary drum dryer capacity 3TPH-80TPH

1.Product Introduction Rotary drum dryer

The Rotary Drum Dryer is a continuous drying system based on an inclined rotating cylinder structure. Its core principle involves using the rotation of the drum and internal lifting flights (paddles) to repeatedly lift and shower wet materials, creating a "material curtain." This ensures maximum contact between the material and the high-temperature hot air, facilitating heat and mass transfer to evaporate moisture.

2.Application Rotary drum dryer

In addition to molybdenum concentrates, this equipment is widely used for the dehydration of various metal concentrates, including:

• Sulfide Concentrates: Copper, lead, zinc, nickel, cobalt, etc.

• Precious Metal Concentrates: Gold, silver, etc.

• Rare Metal Minerals: Tin, tantalum, niobium, titanium, etc.

3.Working Principle Rotary drum dryer

The main body of the rotary dryer consists of a metal cylinder set at a slight incline (typically 1°–5°) rotating at low speeds (3–25 rpm). The process flow is as follows:

1. Feeding: Wet molybdenum concentrate is continuously fed into the higher end of the drum via a feeding device.

2. Agitation: Lifting flights on the internal walls scoop up and shower the material as the drum rotates, forming a uniform "material curtain."

3. Heat Exchange: High-temperature hot air enters the drum in either a co-current or counter-current flow, making full contact with the falling material to transfer heat and evaporate moisture.

4. Conveyance: The material moves slowly toward the discharge end, passing through pre-heating, evaporation, and cooling stages.

5. Discharge & Filtration: The dried material is discharged from the lower end, while exhaust gases are purified through a dust collection system before being released.

4.Advantages Rotary drum dryer

• Flexible Capacity Adaptation: With a throughput range of 3 TPH to 80 TPH, the equipment covers the needs of small, medium, and large-scale production lines. Modular designs allow for easy expansion and system integration.

• High Thermal Efficiency & Energy Savings: By utilizing kiln waste heat or external heat sources for direct or indirect heating—combined with superior sealing and insulation—thermal energy utilization is maximized. Research indicates that waste heat drying systems can save approximately 10.53 kg of standard coal per ton of molybdenum concentrate.

• Stable Operation & Low Maintenance: The simple and robust mechanical structure, featuring long-life core components like support rollers and transmission gears, is ideal for continuous industrial operations.

• High-Moisture Handling: Capable of drying high-humidity molybdenum concentrates from an initial moisture content of 16%–20% down to 5%–15% in a single pass, meeting the requirements for downstream roasting processes.

• High Level of Automation: Equipped with variable frequency drives (VFD), real-time temperature monitoring, and automatic feeding systems, the dryer ensures precise control and minimizes manual intervention.

5.Technical Specifications Rotary drum dryer

6.Our Solutions