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Product Introduction
As a premier global supplier of heavy-duty industrial processing machinery, we offer the Mineral Powder Drying Machine. This system is engineered specifically for high-capacity moisture elimination in mining, metallurgy, chemicals, and construction material production lines. It is widely used to dry fine, heavy, and highly abrasive mineral concentrates and powders, including copper ore, iron ore, quartz sand, limestone powder, fluorite, bentonite, kaolin clay, and industrial gypsum.
Fine mineral powders often carry high surface moisture from upstream flotation or washing processes. Direct processing or shipping of wet powder causes severe material clumping, pipe clogging, and excessive transportation costs. Our industrial mineral powder drying systems deliver ultra-high throughput and extreme thermal efficiency, ensuring a perfectly dry, free-flowing final powder that meets exact downstream processing and packaging standards.
Working Principle
The operation of our mineral powder drying machine is optimized for heavy mineral mass transfer, combining heat-resistant mechanical cascading with co-current or counter-current hot air flow:
Continuous Feeding: Moist mineral concentrate is metered into the drying drum via a heavy-duty, wear-resistant screw conveyor or vibrating feeder at the higher end of the inclined cylinder.
Multi-Zone Cascading and Lifter Interaction: The interior of the rotating drum features a customized matrix of lifting flights, lifting plates, and internal chain shufflers. As the heavy drum rotates, these internal components lift the dense mineral powder and drop it uniformly, creating a highly dense, continuous material curtain across the entire cross-section of the drum.
High-Intensity Thermal Evaporation: A heavy-duty hot air furnace or fluidized bed burner supplies a high-volume stream of intense drying gas. As the mineral powder curtain falls through this hot air stream, the thermal energy instantly vaporizes surface and bound water. The co-current design ensures that high-moisture materials are exposed to peak temperatures immediately, preventing fine minerals from sticking or forming mud cakes.
Centrifugal Separating and Powder Recovery: The dried mineral powder is transported toward the lower discharge end by the velocity of the air current and the drum's incline. The dried powder is discharged into a collecting conveyor, while the dust-laden exhaust gas passes through a multi-stage separation network, including high-efficiency cyclones and heavy-duty baghouse filters, to capture 99.9 percent of fine mineral particles before venting clean air.
Product Features
Heavy-Duty, Reinforced Mechanical Design: Mineral powders have a high bulk density, putting immense structural strain on equipment. As an experienced supplier, we manufacture our dryer shells from extra-thick, premium structural steel plates. The system utilizes forged steel riding rings and heavy, dual-roller support assemblies designed to withstand continuous, high-load industrial operations without deformation.
Extreme Wear and Thermal Shock Resistance: Fine ore concentrates are highly abrasive. The internal lifting flights are reinforced with specialized wear-resistant alloy coatings, and the inlet zones feature high-temperature resistant castables to protect the structural integrity of the machine from continuous friction and extreme heat.
Advanced Anti-Sticking and Self-Cleaning System: Fine-grained minerals like clay, bentonite, and gypsum become highly sticky when wet, often leading to material build-up and ring formation inside the drum. Our dryers are uniquely engineered with internal self-cleaning scrapers and automated external mechanical rappers that flex and vibrate the shell, completely eliminating material accumulation.
Smart PLC Integrated Moisture Regulation: The entire system is managed via a centralized automated control desk. Connected to high-precision online moisture analyzers and temperature sensors, the smart PLC instantly adjusts the drum rotation speed, raw material feed rate, and burner fuel input, ensuring the final output moisture consistently meets specifications down to less than 1 percent.
Superior Environmental Sealing and Dust Containment: To prevent valuable mineral dust from escaping into the workplace, the kiln head and tail are fitted with advanced double-layered mechanical scale seals. The system maintains strict internal negative pressure, ensuring a clean, safe, and dust-free factory environment that satisfies modern clean air standards.
Technical Specifications
| Product Specs (m) | Capacity (T/H) | Main Motor Power (kW) | Main Motor Model | Main Gearbox Model | Ratio |
| φ1.2×10m | 2.5 | 7.5 | Y160M-R3 | ZL50-16-1 | - |
| φ1.5×12m | 3.3 - 4.9 | 10 | Y160L-6B3 | JZQ500-III-2F | - |
| φ1.5×15m | 4 - 6 | 18.5 | Y200L-6 | JZQ500-III-2F | - |
| φ1.8×12m | 4 - 6 | 11 | Y200L-6 | ZQ50-16II-2 | 16.46 |
| φ2.2×12m | 7 - 12 | 18.5 | Y160L-6 | JZQ650-III | 31.5 |
| φ2.2×14m | 7 - 12 | 18.5 | Y160L-6 | JZQ750-III | 31.5 |
| φ2.2×16m | 12 | 30 | Y225M-6 | JZQ750-III | 31.5 |
| φ2.4×14m | 12 | 30 | Y250M-6 | JZQ750-III | 31.5 |
| φ2.4×18m | 10 - 13 | 37 | Y250M-6 | ZL85-13-1 | 27.16 |
| φ2.4×20m | 10 - 14 | 37 | Y250M-6 | ZL85-13-1 | 27.16 |
| φ3×20m | 25 | 55 | Y250M-4 | ZL100-16-1 | 41.52 |
| φ3×25m | 32 - 36 | 75 | YR280M-4 | ZL100-16-1 | 41.52 |
8.
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