Rotary Dryer Manufacturer
Heavy-duty industrial rotary dryer systems engineered for high-capacity, continuous moisture reduction of mineral ores, limestone, clay, coal, and aggregate slag. Deliver exceptional durability with heavy industrial processing processing power.
3 - 120 t/h
Massive Output Capacity
1200 - 3600 mm
Drum Diameter Spec
Highly Versatile
Handles Variable Particle Sizes
Working Principle
What Is A Rotary Dryer?
An industrial rotary dryer (also known as a rotary drum dryer or drying kiln) is the standard heavy-duty plant solution for large-scale material aggregate moisture removal. It consists of a large, slightly inclined rotating cylindrical drum driven by heavy ring gears. As the damp material moves through the tumbling interior, it makes direct contact with continuous flowing hot air streams, stripping away surface moisture rapidly.
Zhonghui Machinery heavy-duty single-pass rotary dryer designs prioritize robust internal lifting flight designs, optimized thermal draft velocities, and reinforced forged riding ring structures engineered to endure harsh mining refinery workloads.
Ideal Applications & Material Processing:
Mining Ores & Minerals: Processing iron ore, copper concentrates, gold flotation minerals, bauxite, fluorite, and industrial clay.
Aggregates & Construction: Continuous drying of limestone, river sand, silica particles, gypsum, and dry-mixed mortar sands.
Industrial By-Products: Efficient volume reduction of steel plant slags, coal fines washings, sawdust, and pulverized fuel minerals.
Working Process
How Does a Rotary Dryer Work?
Continuous tumbling thermal sequence ensuring stable aggregate moisture evaporation inside our rotary dryer.
Our Advantages
WHY CHOOSE OUR ROTARY DRYER
Industrial-grade rotary engineering designed for high material versatility and maximum mechanical operational longevity.
Massive Throughput Capacities
Heavy-duty single drum boosts output.
Extreme Material Versatility
Handles various coarse mineral aggregates.
Thickened Steel Cylinder
Reinforced carbon shell prevents deformation.
Tailored Lifting Flights
Custom flight patterns optimize heat.
Forged Alloy Riding Rings
Heavy-duty support rollers minimize wear.
Variable Speed Controls
Adjustable drum drive controls retention.
Technical Specifications
Rotary Dryer Models & Specifications
Review our field-proven commercial rotary dryer model configurations for heavy industrial processing.
| Model Spec | Drum Diameter (mm) | Drum Length (mm) | Drying Capacity (t/h) | Main Motor Power (kW) | Drum Incline Grade (°) |
|---|---|---|---|---|---|
| Φ1.2×12 | 1200 | 12000 | 3 – 6 | 11 | 3° – 5° |
| Φ1.8×18 | 1800 | 18000 | 12 – 18 | 22 | 3° – 5° |
| Φ2.4×20 | 2400 | 20000 | 30 – 45 | 55 | 3° – 5° |
| Φ3.0×25 | 3000 | 25000 | 60 – 90 | 110 | 3° – 5° |
FREQUENTLY ASKED QUESTIONS
EVERYTHING YOU NEED TO KNOW
Find expert answers to the most common questions about our rotary dryer installations, including flight options, material limits, and thermal stove choices.
Q1: What materials can a rotary dryer process?
A: A single-pass rotary dryer is highly versatile. It safely processes coarse rock aggregates, heavy mineral ores, fine limestone powders, sticky muds, industrial slag filter cakes, and organic wood chips, making it the most flexible drying plant available.
Q2: Why do you customize the internal lifting flights?
A: Different materials behave uniquely inside a tumbling drum. We engineer customized flight patterns: spiral flights at the inlet for fast charging, advanced lifters for uniform aggregate cascading, and comb-style flights to break up sticky clay clumps easily.
Q3: What thermal fuel choices are compatible?
A: Our hot air stove units support multiple industrial fuel options. The combustion furnace can run on natural gas, LPG, heavy industrial fuel oil, diesel, pulverized coal burners, or ecological wood biomass pellets based on your site logistics.
Q4: Co-current vs counter-current airflow configurations?
A: Co-current (air flows with material) is ideal for heat-sensitive aggregates like coal or biomass, applying high initial heat to wet feeds. Counter-current (air flows against material) is best for minerals requiring high final temperatures and extreme dryness.
Q5: How do you prevent shell warping under intense heat?
A: Yes, Zhonghui Machinery builds the complete operational layout. This includes high-velocity suction draft fans, initial settling cyclone collectors, and automatic pulse jet fabric baghouse filters to secure clean, zero-dust environmental emissions.
Q6: Do you provide dust clean recovery systems?
A: Yes, Zhonghui Machinery builds the complete operational layout. This includes high-velocity suction draft fans, initial settling cyclone collectors, and automatic pulse jet fabric baghouse filters to secure clean, zero-dust environmental emissions.
Q7: What is the typical factory order delivery timeline?
A: Massive drum sheet rolling, heavy ring gear machining, forged riding ring assembly, and digital drive pre-commissioning tests require approximately 30 to 35 working days at our production site.
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