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The Three Drum Dryer is mainly used for drying granular materials within a certain humidity range, such as dry mortar industry, various specifications of molding sand used in the casting industry, building materials and cement industry, small particle clay, the chemical industry is used for small particle materials that cannot afford chemical changes and are not afraid of high temperature and dust.
External structure and internal structure
The material enters the inner layer of the Three Drum Dryer by the feeding device, the material is continuously picked up and scattered under the sheet of the inner layer to achieve heat exchange in a spiral way, and the material moves the other end of the inner layer into the middle layer for countercurrent drying. The material is constantly lifted into the middle layer repeatedly, in a way of advancing two steps and one step back. The material fully absorbs the heat emitted by the inner layer drum in the middle layer. It also absorbs the heat of the middle roller, and prolongs the drying time, and the material reaches the dry state here. Then the material falls into the outer layer from the other end of the middle layer, and the material travels in a rectangular multi-loop mode in the outer cylinder, and the material that achieves the drying effect travels quickly out of the cylinder under the action of hot air. The wet material that does not achieve the drying effect cannot travel quickly due to its own weight, and the material is fully dried in the rectangular sheet, thus achieving the purpose of drying.
| Mode(m) | Ф2×4.5 | Ф2.2×5 | Ф2.5×6 | Ф2.7×6.5 | Ф3.0×6.5 | Ф3.2×7 | Ф3.6×8 | Ф4.2×8 |
| Outer tube diameter(m) | 2 | 2.2 | 2.5 | 2.7 | 3.0 | 3.2 | 3.6 | 4.2 |
| Length of outer tube(m) | 4.5 | 5 | 6 | 6.5 | 6.5 | 7 | 8 | 8 |
| Cylinder volume(m3) | 14.13 | 18.99 | 29.43 | 37.19 | 45.92 | 56.27 | 81.39 | 110.78 |
| Cylinder speed(r/min) | 4-10 | 4-10 | 4-10 | 4-10 | 4-10 | 4-10 | 4-10 | 4-10 |
| The maximum intake air temperature(℃) | 700-750 | 700-750 | 700-750 | 700-750 | 700-750 | 700-750 | 700-750 | 700-750 |
| Capacity(T/h) | 13-18 | 15-23 | 20-28 | 24-33 | 35-40 | 40-60 | 55-75 | 70-120 |
| Motor power(kw) | 5.5×2 | 7.5×2 | 5.5×4 | 7.5×4 | 11×4 | 15×4 | 18.5×4 | 22×4 |
1. Q: How much energy can a three drum dryer save compared to a single drum dryer?
A: A three drum dryer can save 30-40% on fuel costs. Its unique triple-pass structure allows hot air to travel a longer distance inside a smaller footprint, maximizing heat exchange and reducing heat loss.
A: It handles a wide range of materials with medium to low viscosity, including: slag, clay, coal, sand, fly ash, ore, sawdust, chicken manure, and mineral powder. Moisture content can be reduced from 60% down to 1-5% in one pass.
A: No, not for most dry materials. The inside is equipped with a special lifting plate design that continuously lifts and throws the material, preventing it from sticking to the drum walls. For sticky materials (like wet sludge), we can add a self-cleaning device.
A: For a 5-10 tons per hour capacity, the price typically ranges from $15,000 to $45,000 USD, depending on the material, required final moisture, and automation level. Contact us for a model-specific quotation.
A: Yes, much smaller. For the same capacity, a three drum dryer requires only 50-60% of the floor space compared to a single drum dryer. This makes it ideal for plants with limited space or retrofit projects.
Chunlei Mining Machinery