The Rotary Drum Dryer, also known as a rotary dryer or drum drying equipment, is one of the most widely used drying machines in mining, building materials, metallurgy, chemical, cement, and coal industries. It is suitable for drying magnetic concentrates, heavy concentrates, flotation concentrates, clay, slag, limestone, coal slime, and other bulk solid materials. The dryer adopts a slightly inclined rotating drum with internal lifting plates that continuously lift, scatter, and distribute wet materials, allowing full contact with hot air or flue gas. Through countercurrent or co-current heat exchange, moisture is evaporated efficiently, and the dried material is discharged for conveying, storage, or further processing. Zhenggang Machinery rotary drum dryers feature rational design, solid structure, stable operation, high output, low energy consumption, and convenient maintenance.
Internal lifting plates repeatedly lift and scatter materials, increasing contact area with hot air and improving drying efficiency.
Suitable for drying concentrates, slag, clay, limestone, coal slime, cement materials, and other industrial bulk solids.
The drum structure, support device, transmission system, and sealing rings ensure smooth and balanced operation.
Different lifting plate designs are available for large particles, sticky materials, dense materials, fragile particles, and fine powders.
Efficient heat exchange and rational internal structure help reduce energy use during continuous drying operation.
Simple structure, reliable transmission, and accessible components make routine inspection and maintenance more convenient.
Used for drying magnetic concentrates, heavy concentrates, flotation concentrates, and non-metallic ore concentrates.
Suitable for drying slag, limestone, and other bulk materials in building materials and metallurgy industries.
Applied in cement production lines for drying clay and related raw materials before further processing.
Used in the coal industry for drying coal slime and similar high-moisture materials.
Suitable for chemical plants and industrial production lines requiring stable drying of bulk solids and powder materials.
Suitable for drying coal slime, slag, clay, limestone, mineral concentrate, and industrial bulk solids in mining, cement, coal, and building material production lines.
| Product Name | Rotary Drum Dryer |
| Equipment Type | Rotary drying equipment |
| Category | Drying & Calcination Equipment |
| Drum Volume | 6.8–147 m³ |
| Main Motor Power | 5.5–185 kW |
| Speed Range | 3.2–6.73 r/min |
| Inclination | 3–5% |
| Applicable Materials | Metal concentrates, non-metal concentrates, slag, clay, limestone, coal slime, cement materials, bulk solids |
| Main Components | Rotating drum, lifting plates, transmission device, support device, sealing rings |
| Heat Exchange Type | Countercurrent or co-current drying |
| Dust Control | Cyclone dust collector, bag filter, or wet scrubber according to dust control requirements |
| Application Industries | Mining, building materials, metallurgy, chemical, cement, coal industry |
| Model | Drum Volume (m³) | Speed (r/min) | Inclination (%) | Motor Model | Power (kW) | Reducer Model | Dimensions (L×W×H mm) | Weight (t) |
|---|---|---|---|---|---|---|---|---|
| Ø1.0×10m | 7.85 | 6.73 | 3–5 | Y132M2-6 | 5.5 | ZL350-Ⅱ-25 | 10000×1876×2069 | 7.6 |
| Ø1.2×6m | 6.8 | 5.8 | 3–5 | Y132M2-6 | 5.5 | ZL350-Ⅱ-25 | 6000×2159×2475 | 8.5 |
| Ø1.2×8m | 9.1 | 5.8 | 3–5 | Y132M2-6 | 5.5 | ZL350-Ⅱ-25 | 8000×2159×2475 | 9.89 |
| Ø1.2×10m | 11.31 | 5.8 | 3–5 | Y160M-6 | 7.5 | ZQ500-Ⅱ-31.5 | 10000×2159×2475 | 11.93 |
| Ø1.2×12m | 13.57 | 5.8 | 3–5 | Y160L-6 | 11 | ZQ500-Ⅱ-31.5 | 12000×2159×2475 | 13.5 |
| Ø1.5×8m | 14.14 | 4.8 | 3–5 | Y160L-6 | 11 | ZQ650-Ⅱ-2F/1F | 8000×2655×2895 | 14.74 |
| Ø1.5×10m | 17.67 | 4.8 | 3–5 | Y160L-6 | 11 | — | 10000×2655×2895 | 15.93 |
| Ø1.5×12m | 21.2 | 4.8 | 3–5 | Y180L-6 | 15 | ZQ650-Ⅱ-31.5 | 12000×2655×2895 | 17.13 |
| Ø1.5×14m | 24.9 | 4.8 | 3–5 | Y180L-6 | 15 | — | 14000×2655×2895 | 18.33 |
| Ø1.8×10m | 25.45 | 4.59 | 3–5 | Y180L-6 | 15 | ZQ650-Ⅱ-2F/1F | 10000×3060×2980 | 17.93 |
| Ø1.8×12m | 30.5 | 4.59 | 3–5 | Y200L1-6 | 18.5 | ZQ650-Ⅱ-2F/1F | 12000×3060×2980 | 19.89 |
| Ø1.8×14m | 35.1 | 4.59 | 3–5 | Y200L1-6 | 18.5 | ZQ650-Ⅱ-2F/1F | 14000×3060×2980 | 20.85 |
| Ø1.8×18m | 45.8 | 4.59 | 3–5 | Y200L2-6 | 22 | ZQ650-Ⅱ-2F/1F | 18000×3060×2980 | 22.3 |
| Ø2.2×12m | 45.6 | 4.43 | 3–5 | Y200L2-6 | 22 | ZQ650-Ⅱ-2F/1F | 12000×3620×3570 | 30.31 |
| Ø2.2×14m | 52.1 | 4.9 | 3–5 | Y200L2-6 | 22 | ZQ750-Ⅱ-1F | 14000×3620×3570 | 32.23 |
| Ø2.2×18m | 68.4 | 4.9 | 3–5 | Y225M-6 | 30 | ZQ750-Ⅱ-1F | 18000×3620×3570 | 36.15 |
| Ø2.2×20m | 70 | 4.9 | 3–5 | Y225M-6 | 30 | ZQ750-Ⅱ-1F | 20000×3620×3570 | 38.1 |
| Ø2.4×14m | 63.3 | 3.85 | 3–5 | Y225M-6 | 30 | ZQ850-Ⅲ-2F/1F | 14000×3860×3760 | 39.9 |
| Ø2.4×24m | 109 | 3.85 | 3–5 | YCT315-4B | 45 | ZQ850-Ⅲ-2F/1F | 24500×3860×3760 | 54.8 |
| Ø2.5×20m | 123 | 3.6 | 3–5 | YCT315-4B | 45 | ZQ850-Ⅲ-2F/1F | 23600×3860×4800 | 55.9 |
| Ø3.0×20m | 147 | 3.2 | 3–5 | Y315-4 | 185 | YNS-995-V-40 | 25000×4900×5000 | 103.8 |
Get detailed flow diagrams, equipment specifications, and design guidelines
It is used for drying metal concentrates, non-metal concentrates, slag, clay, limestone, coal slime, cement materials, and other industrial bulk solids.
Mineral Drying Line • Chile
The Rotary Drum Dryer performs reliably for drying bulk materials such as slag and mineral concentrates. It has stable operation, strong adaptability, and convenient maintenance.
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