ماكينة تجفيف دوارة
منتجات
Industrial Rotary Dryer Manufacturer – Custom Solutions for Mining, Biomass & More
Application: Mining & Metallurgy, Energy & Fuel, Environmental & Waste Management,
Capacity Range: 1-100t/h
Efficiency
Struggling with high drying costs or low efficiency?
❌Common Problem
- “Moisture content > 15% slowing production?”
- “Frequent dryer breakdowns?”
- “Energy costs eating your profits?”
✅Our Solutions
- Precision heat control – Achieve <5% moisture output
- Heavy duty steel drum – 50% longer lifespan than competitors
- Smart heat recovery – Save up to $50,000/year on energy
طلب
Trusted rotary dryers for Global Industries
Our rotary dryers are purpose-built for heavy industrial applications, delivering precision drying across mining, construction, energy, and environmental sectors. Below is a breakdown of key scenarios and the optimal dryer types for each:
1. Mining & Mineral Processing
Applications:
- Bulk Ore Drying (iron ore, copper concentrate, nickel slag)
- Dryer Type: Rotary Drum Dryer or Three Pass Rotary Dryer
- Key Features: High throughput (up to 200 TPH), abrasion-resistant lining, moisture reduction to ≤5%.
- Fine Powder Drying (zinc dust, ore powder)
- Dryer Type: Ore Powder Dryer
- Key Features: Sealed chamber to prevent dust loss, inert gas compatibility for oxidation-sensitive materials.
2. Construction & Building Materials
Applications:
- Sand Drying for Concrete/Asphalt (riversand, silica sand)
- Dryer Type: Riversand Dryer or Sand Dryer
- Key Features: Integrated dust collection, ≤3% residual moisture for optimal mix quality.
- Cement Raw Material Pre-Drying (limestone, gypsum)
- Dryer Type: Cement Dryer
- Key Features: Waste heat recovery from kilns, hardened steel flights for abrasive materials.
3. Energy Production & Fuel Processing
Applications:
- Coal Moisture Reduction (bituminous coal, lignite, coal slime)
- Dryer Type: Coal Dryer or Coal Slime Dryer
- Key Features: Explosion-proof design, 15-20% increase in calorific value.
- Fly Ash Recycling (from coal-fired plants)
- Dryer Type: Fly Ash Dryer
- Key Features: Anti-abrasive liners, transforms ash into concrete additive.
4. Metalworking & Foundry
Applications:
- Foundry Sand Reclamation (used casting sand)
- Dryer Type: Sand Dryer
- Key Features: Fast drying cycle (20-30 mins), uniform heat distribution for mold reuse.
- Metal Slag Recycling (iron slag, steel slag)
- Dryer Type: Ore Slag Dryer
- Key Features: Reduces slag moisture from 25% to <5% for easier pelletizing.
5. Environmental & Waste Management
Applications:
- Municipal/Industrial Sludge Treatment (non-hazardous)
- Dryer Type: Sludge Dryer
- Key Features: 60-70% volume reduction, odor control via closed-loop gas systems.
- Bentonite Drying for Landfill Liners
- Dryer Type: Bentonite Dryer
- Key Features: Preserves swelling capacity, ±0.5% moisture consistency.
6. Advanced Material Production
Applications:
- High-Purity Quartz Sand for Solar Panels
- Dryer Type: Quartz Sand Dryer
- Key Features: Contamination-free drying, ≤1% moisture for glass manufacturing.
- Thermal Power Plant Byproduct Processing
- Dryer Type: Three Drum Rotary Dryer
- Key Features: Triple-pass design for 30% higher thermal efficiency.
How to Choose the Right Dryer?
| Scenario | Material Challenges | Recommended Dryer |
| High-moisture bulk solids | Sticky, abrasive, slow drying | Rotary Drum Dryer |
| Space-constrained facilities | Limited floor area | Three Drum Rotary Dryer |
| Energy cost reduction | High fuel consumption | Three Pass Rotary Dryer |
| Hazardous environments | Explosive dust risks | Coal Dryer (ATEX-certified) |
Why Our Dryers Excel in These Applications?
- Material-Specific Engineering:
- Flight designs adjusted for slag (heavy-duty) vs. sand (gentle cascading).
- Durability:
- 12mm steel plating for mining vs. 8mm for general industrial use.
- Compliance & Safety:
- ATEX compliance for coal, dust explosion suppression systems.
- Global Support:
- 24/7 multilingual technical team for troubleshooting.
أنواع المنتجات
معدات تجفيف دوارة رئيسية للبيع في شركة HengXing Machinery
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المنتجات التفصيلية
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Structure
Hengxing Rotary Dryer Structure
The rotary dryer is a robust industrial drying system designed for efficient heat transfer and material handling. Based on the provided diagram, here’s a detailed breakdown of its structure and operational workflow:
1. Feeding System
- Belt Conveyor (Inlet): Transports raw materials (e.g., wet sand, coal, or slag) to the hopper.
- Hopper: Temporarily stores materials before controlled release into the dryer.
- Feeder: Regulates the flow rate of materials into the drying drum to prevent overload.
2. Drying Drum
- Drying Drum: A rotating cylindrical chamber (typically inclined at 1-5°) where materials are dried.
- Material Movement: The drum’s rotation and internal flights cascade materials, exposing them evenly to heat.
- Dispersion Device: Breaks up clumps of material to ensure uniform drying and prevent blockages.
3. Heat Supply System
- Heat Source: Generates hot air or gas (via combustion, electric heaters, or steam).
- Heat Flow: Hot air enters the drum co-currently or counter-currently to the material flow.
- Temperature Control: Adjustable settings (100–800°C) based on material sensitivity.
4. Airflow & Exhaust System
- Induced Draft Fan: Creates negative pressure to pull hot air through the drum, enhancing heat transfer.
- Cyclone Unloader: Separates dried particles from exhaust gases, minimizing product loss and dust emissions.
5. Discharge System
- Belt Conveyor (Outlet): Transports dried materials to storage or downstream processes.
- Moisture Monitoring: Optional sensors at the outlet ensure final moisture meets specifications (e.g., ≤5%).
Workflow Summary
- Material Entry: Wet material → Belt conveyor → Hopper → Feeder → Drying drum.
- Drying Phase: Material + hot air → Cascading motion in drum → Moisture evaporation.
- Exhaust & Separation: Humid air → Cyclone unloader → Clean discharge.
- Product Output: Dried material → Outlet conveyor → Packaging/processing.
Structural Advantages
- Modular Design: Components like the feeder and cyclone can be customized for specific materials.
- Durability: Thick steel drum (8-15mm) with abrasion-resistant liners for harsh environments.
- Energy Efficiency: Heat recovery systems reuse exhaust heat, cutting fuel costs by up to 25%.
This structure ensures reliable, high-capacity drying for bulk solids in mining, construction, and energy industries.
Usage
Usages of Each Rotary Dryer
Our rotary drying systems are engineered for heavy-duty industrial applications, specifically designed to handle non-chemical, non-agricultural materials across mining, construction, energy, and environmental sectors. Below is a detailed breakdown of our product range and their specialized uses:
Applications of Our Industrial Rotary Dryers
Our rotary drying systems are engineered for heavy-duty industrial applications, specifically designed to handle non-chemical, non-agricultural materials across mining, construction, energy, and environmental sectors. Below is a detailed breakdown of our product range and their specialized uses:
1. Rotary Drum Dryer
Materials: Riversand, ore slag, coal slime, bentonite, fly ash, quartz sand.
Industries: Mining, construction materials, power plants.
Key Advantages:
- High-capacity drying (up to 200 TPH) for bulk materials.
- Robust stainless steel drum resistant to abrasion and high temperatures.
- Adjustable rotational speed for precise moisture control (≤3% final moisture).
2. Riversand Dryer
Materials: Silica sand, river sand, artificial sand.
Industries: Construction, glass manufacturing, foundry.
Key Advantages:
- Eliminates up to 15% moisture for sand used in concrete and asphalt.
- Integrated dust filtration system meets environmental emission standards.
- Low fuel consumption with co-current airflow design.
3. Ore Slag Dryer
Materials: Iron slag, copper slag, nickel slag.
Industries: Metallurgy, metal recycling.
Key Advantages:
- Reduces slag moisture from 25% to <5% for easier storage and transport.
- Customizable drum length (10-30m) to fit high-volume slag processing.
- Heat-resistant liners extend equipment lifespan in high-temperature environments.
4. Sludge Dryer
Materials: Municipal sludge, industrial sludge (non-hazardous).
Industries: Wastewater treatment, pulp/paper mills.
Key Advantages:
- Reduces sludge volume by 60-70% through 80-90% moisture removal.
- Anti-clogging flights ensure continuous operation with sticky materials.
- Odor control via closed-loop gas recirculation.
5. Coal Dryer
Materials: Bituminous coal, lignite, coal slime.
Industries: Coal-fired power plants, coal washing facilities.
Key Advantages:
- Increases coal calorific value by 15-20% through moisture reduction.
- Explosion-proof design with oxygen level monitoring for safety.
- Handles particle sizes from 0-50mm without clogging.
6. Three Drum Rotary Dryer
Materials: Quartz sand, ore powder, fly ash.
Industries: Mining, ceramics, refractory materials.
Key Advantages:
- Triple-pass design increases thermal efficiency by 30% vs. single drum.
- Compact footprint ideal for space-constrained facilities.
- Automatic temperature control (±5°C accuracy).
7. Three Pass Rotary Dryer
Materials: Bentonite, fly ash, riversand.
Industries: Foundry, construction, thermal power.
Key Advantages:
- Three-stage drying (drying → cooling → stabilization) in one unit.
- Reduces energy consumption by 25% with counter-current heat exchange.
- Modular design for easy maintenance.
8. Cement Dryer
Materials: Cement raw meal, limestone, gypsum.
Industries: Cement manufacturing.
Key Advantages:
- Pre-dries materials to optimize kiln efficiency.
- Handles abrasive materials with hardened steel flights.
- Compatible with waste heat recovery from kiln exhaust gases.
9. Quartz Sand Dryer
Materials: High-purity quartz sand, silica sand.
Industries: Solar panel glass, semiconductor manufacturing.
Key Advantages:
- Maintains sand purity with contamination-free drying process.
- Achieves ultra-low moisture (<1%) for critical industrial uses.
- FDA-compliant materials (optional) for non-food contact applications.
10. Coal Slime Dryer
Materials: Coal slime, tailings.
Industries: Coal preparation plants, energy.
Key Advantages:
- Converts high-moisture slime (25-35%) into usable fuel (moisture ≤12%).
- Anti-corrosion coating for acidic slurry environments.
- Reduces landfill costs by 50% through waste-to-energy conversion.
11. Bentonite Dryer
Materials: Bentonite clay, montmorillonite.
Industries: Foundry (molding sand), pet litter, drilling fluids.
Key Advantages:
- Gentle drying to preserve bentonite’s swelling properties.
- Handles sticky materials with specialized flight designs.
- Moisture uniformity (±0.5%) across batches.
12. Ore Powder Dryer
Materials: Iron ore concentrate, copper powder, zinc dust.
Industries: Mining, steel production.
Key Advantages:
- Prevents material loss with sealed drying chamber.
- Reduces oxidation risk through inert gas drying (optional).
- Processes fine powders (50-500 microns) without dust leakage.
13. Fly Ash Dryer
Materials: Fly ash, bottom ash.
Industries: Thermal power plants, cement blending.
Key Advantages:
- Transforms waste ash into saleable material for concrete additives.
- Handles abrasive ash with replaceable wear plates.
- Reduces landfill fees and carbon footprint.
14. Sand Dryer
Materials: Foundry sand, construction sand.
Industries: Metal casting, building materials.
Key Advantages:
- Fast drying cycle (20-30 minutes) for high-throughput operations.
- Uniform drying for consistent sand quality in mold-making.
- Fuel flexibility: gas, diesel, or biomass (external combustion).
Technical Highlights Across All Dryers
- No Cross-Contamination: Strictly designed for non-food, non-chemical materials.
- Durability: 10-15mm thick steel plates, 50,000+ hours of operation.
- Customization: Tailored drum diameters (1.2-4.5m), lengths (8-40m), and heat sources.
- Compliance: CE, ISO 9001, and ATEX (upon request) certifications.
Usage
Advantages of Rotary Dryer
1. High Thermal Efficiency (70-80%)
Rotary dryers primarily rely on heat conduction for energy transfer, ensuring consistent thermal direction throughout the operation. Nearly all heat is utilized to evaporate moisture from materials adhering to the drum wall, minimizing losses from end covers or radiation. This optimized heat utilization makes it one of the most energy-efficient industrial drying solutions.
2. Unmatched Operational Flexibility & Versatility
The system allows independent adjustment of critical parameters, including:
- Feedstock concentration and material film thickness,
- Heating medium temperature (gas, steam, or electric),
- Drum rotation speed.
These variables, which operate without interdependence, enable precise control over drying rates. This adaptability ensures compatibility with diverse materials (e.g., ores, sludge, sand) and meets varying production demands across industries like mining, construction, and waste management.
3. Rapid Drying Cycle (10–300 Seconds)
Materials achieve target moisture levels within seconds, making rotary dryers ideal for heat-sensitive substances. The process can be further accelerated by operating under vacuum conditions, reducing pressure to lower boiling points and prevent thermal degradation.
4. Robust Design for Industrial Demands
- Components like the dispersion device ensure uniform material distribution, preventing clumping.
- Belt conveyors and cyclone unloaders streamline continuous feeding and discharge, minimizing downtime.
- The heat supply unit and induced draft fan maintain optimal temperature and airflow for consistent results.
5. Scalable & Low-Maintenance
From compact units for small-batch processing to large-scale systems handling 200+ TPH, rotary dryers are engineered for reliability with minimal maintenance requirements.
سمات
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Technical Parameter
Specifications
| Model （m） （dia×length ） | Shell volume （m³） | capacity （t/h） | Installation slope （%） | Max air temperature （℃） | motor （kw） | الوزن الإجمالي （t） |
| Φ1.2×8.0 | 9.0 | 1.9-2.4 | 3-5 | 700-800 | 7.5 | 9 |
| Φ1.2×10 | 11.3 | 2.4-3.0 | 3-5 | 700-800 | 7.5 | 11 |
| Φ1.5×12 | 21.2 | 4.5-5.7 | 3-5 | 700-800 | 15 | 18.5 |
| Φ1.5×14 | 24.7 | 5.3-6.6 | 3-5 | 700-800 | 15 | 19.7 |
| Φ1.5×15 | 26.5 | 5.7-7.1 | 3-5 | 700-800 | 15 | 20.5 |
| Φ1.8×12 | 30.5 | 6.5-8.1 | 3-5 | 700-800 | 18.5 | 21.5 |
| Φ1.8×14 | 35.6 | 7.6-9.5 | 3-5 | 700-800 | 18.5 | 23 |
| Φ2.2×12 | 45.6 | 9.7-12.2 | 3-5 | 700-800 | 22 | 33.5 |
| Φ2.2×14 | 53.2 | 11.4-14.2 | 3-5 | 700-800 | 22 | 36 |
| Φ2.2×16 | 60.8 | 13.0-16.2 | 3-5 | 700-800 | 22 | 38 |
| Φ2.4×14 | 63.3 | 13.5-16.9 | 3-5 | 700-800 | 37 | 45 |
| Φ2.4×18 | 81.4 | 17.4-21.7 | 3-5 | 700-800 | 37 | 49 |
| Φ2.4×20 | 90.4 | 19.3-24.1 | 3-5 | 700-800 | 45 | 54 |
| Φ2.4×22 | 99.5 | 21.2-26.5 | 3-5 | 700-800 | 45 | 58 |
| Φ2.6×24 | 127.4 | 27.2-34.0 | 3-5 | 700-800 | 55 | 73 |
| Φ3.0×20 | 141.3 | 30.1-37.7 | 3-5 | 700-800 | 75 | 85 |
| Φ3.0×25 | 176.6 | 37.7-47.1 | 3-5 | 700-800 | 75 | 95 |
| Φ3.2×25 | 201 | 42.9-53.6 | 3-5 | 700-800 | 90 | 110 |
| Φ3.6×28 | 285 | 60.8-76.0 | 3-5 | 700-800 | 160 | 135 |
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بيريتا جان كلود / من رواندا
