一、Brief Introduction
This rotary drum dryer is the essential pre-drying equipment for beach heavy mineral, zircon sand, ilmenite and rutile beneficiation lines. It adopts countercurrent rotary drum structure, reducing the moisture of wet concentrate (15%~22% initial water) to below 1%, to ensure normal electrostatic separation in subsequent process and avoid blockage & low recovery rate.
Complete supporting system includes heat source, dust removal, feeding & discharging unit and PLC control cabinet. The drum is wear-resistant against hard ore scouring. Multiple heating modes (coal, natural gas, biomass, electric heating) are optional. Modular split design enables container shipment. Non-standard customization is available for mining projects in Southeast Asia, Africa, India and Middle East.
二、Working Principle
The drum is installed with an inclination of 3°~5° and rotates at low speed, with wear-resistant lifting plates arranged inside. Wet ore is fed from the higher end, while hot air enters reversely from the lower end. Lifting plates keep lifting mineral materials to form uniform material curtain, so ore fully contacts hot air for heat exchange. Free moisture evaporates and is exhausted with waste gas, and dried ore is discharged continuously from the lower outlet.
Equipped with induced draft fan, cyclone dust collector and pulse bag dust remover, exhaust gas meets international emission standards, supporting 24-hour automatic continuous operation.
三、Application & Usage
1. Mandatory process equipment: Electrostatic separator cannot process damp & agglomerated ore. This dryer is indispensable in gravity-magnetic-electrostatic separation flow to guarantee stable beneficiation recovery.
2. Improve storage & shipping quality: Break caked wet mineral powder. Dried sand is loose for sieving, bulk bag packing and ocean shipment, cutting damp loss and extra shipping weight cost.
3. Flexible heating options: Support coal, biomass, natural gas and electric heating, suitable for remote mining sites without pipeline gas supply.
4. Environmental closed-loop system: Two-stage dust collection recovers fine zircon & titanium powder, reducing raw material waste and complying with global mining environmental regulations.
四、Standard Specifications
Applicable raw materials: wet concentrates of zircon sand, ilmenite and rutile;
Inlet moisture: 15%~22%;
Outlet moisture: ≤1%.
| 型号规格 Diameter×Length | 小时处理量 Capacity(t/h) | 主机电机 Main Motor(kW) | 设备总重量 Total Weight(t) |
适用生产线规模 Applicable Production Line Scale |
|---|---|---|---|---|
| Φ0.8×8m | 0.8~2.0 | 4 | 4.2 | Small pilot beneficiation line |
| Φ1.0×10m | 1.2~3.0 | 7.5 | 5.5 | Medium & small mineral plant within 10t/h |
| Φ1.5×12m(Best-selling model for foreign trade) | 5~8 | 18.5 | 21 | Standardized zirconium-titanium heavy mineral separation production line |
| Φ1.5×15m | 8~12 | 22 | 27 | Medium-scale beneficiation project |
| Φ1.8×18m | 15~22 | 30 | 48 | Large complete set of beneficiation assembly line |
标配整套系统 Complete Standard Configuration
1. 主机回转滚筒烘干机 Rotary Drum Main Body
2. 进料皮带输送机 + 变频喂料机 Belt Feeder & Variable Speed Feeder
3. 热源单元（燃煤 / 燃气 / 生物质热风炉任选）Heat Source Furnace
4. 一级旋风除尘 + 二级脉冲布袋除尘 Cyclone + Pulse Baghouse Dust Collector
5. 出料皮带输送机 Discharge Conveyor
6. 引风机、密封组件、PLC 电控柜 Induced Draft Fan & PLC Control Cabinet
