Mineral Dryer | Mineral Drying Machine - Versatile Single-Drum Rotary Dryer for Non-Metallic & Metallic Minerals
In mineral processing and mining production, drying is a critical link between beneficiation and downstream utilization. Whether for non-metallic minerals (such as bentonite, kaolin, gypsum, silica sand, barite, limestone) or metallic minerals (such as iron ore, manganese ore, chrome ore), high-moisture materials lead to increased transportation costs, downstream processing difficulties, and reduced product value. Traditional sun-drying is weather-dependent, inefficient, and produces inconsistent quality, failing to meet the demands of modern industrial production.
Our Mineral Single-Drum Rotary Dryer is specifically designed for drying various minerals. Utilizing rotary drum drying technology combined with anti-sticking breaking devices, low-temperature high-air-volume processes, and high-efficiency dust collection systems, it rapidly reduces mineral moisture from 15%-35% down to 5%-10%, preserving mineral crystal structure, whiteness, and activity while ensuring product quality.
The Mineral Dryer is widely used for the following mineral types:
| Mineral Category | Typical Materials | Post-Drying Applications | Value Proposition |
|---|---|---|---|
| Clay Minerals | Bentonite, kaolin, ball clay | Drilling muds, ceramic raw materials, paper fillers, cat litter | Control moisture, improve plasticity and whiteness |
| Carbonate Minerals | Limestone, dolomite, calcite | Cement raw materials, building aggregates, metallurgical fluxes | Reduce moisture for grinding and storage |
| Sulfate Minerals | Gypsum, barite | Building gypsum boards, oil drilling weighting agents | Dewater to meet industry standards |
| Silicate Minerals | Silica sand, feldspar, diatomite | Glass raw materials, ceramic glazes, filter materials | Remove moisture, improve purity and flowability |
| Metallic Minerals | Iron ore, manganese ore, chrome ore | Smelting feed, pellet production | Reduce moisture for transport and furnace feed |
| Industrial Minerals | Talc, graphite, mica, vermiculite | Paint fillers, refractory materials, insulation materials | Precise moisture control, preserve layered structure |
Core Value After Drying:
30%-50% Weight Reduction: Significantly lowers transportation costs
Improved Processing Performance: Facilitates subsequent grinding, classification, and packaging
Preserved Mineral Quality: Low-temperature drying retains whiteness and activity
Long-Term Storage: Moisture reduced to 5%-10%, enabling 12-24 months of safe storage
Versatile: One system handles multiple minerals, reducing capital investment
This industrial mineral dryer utilizes a co-current rotary drying process, optimized for mineral characteristics.
Feeding & Breaking: Wet minerals are fed into the cylinder via a conveyor. For sticky minerals (such as clay and kaolin), a powerful breaking device at the feed end forcibly disperses agglomerated material to ensure uniform drying.
Gentle Heat Exchange: A hot air furnace generates hot air (temperature precisely adjustable between 120°C-600°C based on mineral thermal sensitivity), which fully contacts the minerals inside the cylinder. The cylinder interior features a combined lifting plate system, constantly lifting the material to form a uniform “material curtain” that maximizes heat exchange efficiency.
Anti-Burn & Quality Protection: For high-whiteness minerals (such as kaolin and gypsum) and heat-sensitive minerals, we employ low-temperature drying modules and precision temperature control systems to prevent discoloration, decomposition, or loss of activity due to overheating.
Gas-Solid Separation: The dried minerals are discharged via a discharger, while dust-laden exhaust gas enters a high-efficiency pulse baghouse filter to ensure environmental compliance. Recovered fine powder can be directly returned to the final product, achieving zero loss.
| Dryer Size (Dia×Length) | Capacity (T/H) | Initial Moisture (%) | Final Moisture (%) | Total Power (kW) |
|---|---|---|---|---|
| Ф0.6×6m | 0.5 – 1.5 | ≤ 20 – 30 | ≤ 3 – 5 | 3 |
| Ф0.8×8m | 0.8 – 2.5 | ≤ 20 – 30 | ≤ 3 – 5 | 4 |
| Ф1.0×10m | 1.0 – 4.0 | ≤ 20 – 30 | ≤ 3 – 5 | 5.5 – 7.5 |
| Ф1.2×10m | 1.5 – 6.0 | ≤ 20 – 30 | ≤ 3 – 5 | 7.5 – 11 |
| Ф1.2×12m | 2.0 – 7.0 | ≤ 20 – 30 | ≤ 3 – 5 | 11 – 15 |
| Ф1.5×12m | 3.0 – 9.0 | ≤ 20 – 30 | ≤ 3 – 5 | 15 – 18.5 |
| Ф1.8×14m | 5.0 – 13.0 | ≤ 20 – 30 | ≤ 3 – 5 | 18.5 – 22 |
| Ф2.0×16m | 8.0 – 18.0 | ≤ 20 – 30 | ≤ 3 – 5 | 22 – 30 |
| Ф2.2×18m | 10.0 – 22.0 | ≤ 20 – 30 | ≤ 3 – 5 | 30 – 37 |
| Ф2.4×20m | 15.0 – 32.0 | ≤ 20 – 30 | ≤ 3 – 5 | 37 – 45 |
| Ф2.6×22m | 20.0 – 40.0 | ≤ 20 – 30 | ≤ 3 – 5 | 45 – 55 |
| Ф3.0×25m | 28.0 – 50.0 | ≤ 20 – 30 | ≤ 3 – 5 | 55 – 75 |
| Ф3.2×28m | 35.0 – 65.0 | ≤ 20 – 30 | ≤ 3 – 5 | 75 – 90 |
Designed for Industrial Minerals: We deeply understand the characteristics of different minerals—kaolin fears discoloration, gypsum fears overheating, bentonite fears activity loss. From process design to temperature control strategy, every aspect is optimized for mineral properties.
Increase Product Value: Through gentle drying, we preserve natural whiteness, activity, and physical properties, enabling your products to command higher prices in the market.
Lower Total Cost of Ownership: High wear resistance extends equipment life, energy-efficient technology reduces operating costs, and versatility minimizes capital investment—the Mineral Dryer helps you achieve a lower total cost of ownership over the equipment’s lifecycle.
Global Service Network: With over 20 years of experience serving mineral processing clients worldwide, we can dispatch engineers for overseas installation and commissioning, providing bilingual technical support.
EPC Turnkey Capability: From material testing, process design, and equipment manufacturing to installation, commissioning, and personnel training, we provide complete turnkey engineering services.
Whether you need to dry kaolin, bentonite, gypsum, silica sand, barite, or clay, one Mineral Dryer can meet your needs. Contact us today to get a drying solution tailored to your specific mineral characteristics.
Get Your Customized Solution:
Request a Quote → Tell us your capacity, mineral type, and heat source availability, and we will respond within 24 hours
Schedule a Technical Discussion → Speak one-on-one with our mineral drying engineers
