rotary dryer industrial
The Best Choices for Your Project
We supply industrial rotary dryer industrial equipment
- Customization Service：The maximum customizable diameter is 3.5 meters
- Solution：Provide solutions for your problems
- Dryer length: 8 meters to 50 meters.
rotary dryer industrial
An industrial rotary dryer (also known as a rotary kiln dryer or rotary drum dryer) is a classic large-scale drying system designed for the continuous processing of large volumes of bulk materials. The length of the dryer can exceed 60 meters, with a diameter of more than 3.5 meters. Its main body is a slightly inclined, slowly rotating cylindrical drum. Wet materials enter from the higher end and lose moisture through various heat transfer mechanisms inside the cylinder, finally being discharged from the lower end as dried materials meeting the required moisture level.
Renowned for its high processing capacity, stable operation, and wide adaptability, the industrial rotary dryer is an indispensable core drying equipment in industries such as mining, chemicals, building materials, and agriculture.
The industrial rotary dryer adopts an automated design to achieve fully automatic drying throughout the entire process.
Automatic Feeding & Material Lifting:
Wet materials are evenly delivered into the feeding end of the dryer via a feeding device. As the drum rotates slowly, lifters installed on the inner wall continuously pick up and scatter the material.Hot Air Contact:
Meanwhile, hot air generated by a heat source (coal, gas, oil, or biomass) is drawn into the cylinder in either co-current or counter-current flow by the induced draft fan.Heat Transfer & Drying:
The scattered materials form a uniform material curtain inside the drum, greatly increasing the contact area with the hot air. This enables efficient heat exchange and rapid moisture evaporation.Material Conveying & Discharging:
Due to the drum’s inclination, materials move axially toward the discharge end under the combined effect of gravity and drum rotation. During this movement, materials are continuously dried until they reach the required moisture content and are finally discharged.Exhaust Gas Treatment:
Exhaust gases containing water vapor and dust are purified by dust removal equipment (such as cyclone dust collectors or bag filters) at the discharge end before being expelled by the induced draft fan.
Specifications of Rotary Kiln Dryer
| Model (Diameter × Length, m) | Speed (r/min) | Slope (%) | Capacity (t/h) | Main Reducer Model | Ratio | Main Motor Model | Power (kW) | Speed (r/min) | No. of Supports | Weight (t) | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|
| φ1.9/1.6×36 | 0.53–1.59 | 4 | 2.5–4 | JZQ750-1 | 45.58 | JZT-72-4 | 30 | 1200/400 | 3 | 53 | – |
| φ2.1/1.8×36 | 0.5–1.51 | 4 | 3.9–5 | UT2-110 | 163.36 | JZS-81 | 30 | 1410/470 | 3 | 75 | – |
| φ1.2×25 | 0.5–1.6 | 3 | 0.3–1.2 | PM650 | 40.17 | JZTY71-4 | 15 | 1200/120 | 3 | 34 | – |
| φ1.6×32 | 0.158–0.258 | 3 | 0.6–2 | PM750 | 48.57 | JZJY61-4 | 22 | 1200/120 | 3 | 46.82 | – |
| φ1.8×45 | 0.66–1.98 | 4 | 1–4.5 | UT2-110 | 163.36 | JZS-81 | 30 | 1410/470 | 3 | 80 | – |
| φ2.2×50 | 0.125–1.25 | 3.5 | 2–8 | ZS145-11 | 157 | YCT280-4A | 45 | 1320/132 | 3 | 130.71 | – |
| φ2.5×50 | 0.516–1.549 | 3.5 | 5.5–13 | ZS165-7 | 99.96 | YCT355-4A | 55 | 1320/440 | 3 | 167.5 | – |
| φ3×48 | 0.3309–3.309 | 3.5 | 9–20 | ZL130-14 | 32.11 | ZSN4-250-21B | 90 | 1500/150 | 3 | 237 | External decomposition |
| φ3.2×50 | 0.398–3.975 | 3.5 | 13–32 | ZL130-16 | 40.85 | ZSN4-280-11B | 190 | 1000/100 | 3 | 263 | External decomposition |
| φ3.3×52 | 0.391–3.91 | 3.5 | 14–38 | ZSY500-28 | 27.707 | ZSN4-315082 | 190 | 1000/100 | 3 | 280.8 | External decomposition |
| φ4×60 | 0.396–3.96 | 3.5 | 32–80 | ZSY630-35.5 | 34.601 | ZSN-355-092 | 315 | 1000/100 | 3 | 487.5 | External decomposition |
| φ4.2×60 | 0.4165–4.165 | 3.5 | 45–100 | ZSY710-35.5 | 35.526 | ZSN4-355-12 | 420 | 1000/100 | 3 | 576.1 | External decomposition |
| φ4.3×62 | 0.398–3.98 | 3.5 | 51–120 | ZSY710-35.5 | 35.714 | ZSN4-355-12 | 420 | 1000/100 | 3 | 598.5 | External decomposition |
| φ4.8×74 | 0.35–4 | 4 | 90–200 | JH710C-SW305-40 | 42.226 | ZSN-400-092 | – | – | – |
Features and Advantages of the Industrial Rotary Dryer
High capacity & continuous operation:
Designed for continuous feeding and discharging, enabling 24-hour uninterrupted operation—ideal for large-scale industrial production.
✅ Excellent drying efficiency & uniformity:
A specially designed lifter system ensures continuous lifting and dispersion of material, enabling full contact with hot air and preventing uneven drying.
✅ Stable operation & long service life:
Built with a robust structure and core components made of wear-resistant and high-temperature-resistant materials, the dryer withstands harsh working conditions with low failure rates and extended service life.
✅ Strong adaptability:
By adjusting the rotational speed, inclination, temperature, and airflow, the dryer can efficiently process materials with different initial moisture contents and particle sizes, and remains stable even with fluctuating material properties.
✅ Flexible heat source options:
Compatible with multiple types of heat sources, including coal, natural gas, oil, steam, and biomass, based on local fuel availability and cost.
✅ High level of automation:
Can be equipped with advanced PLC control systems for real-time monitoring and automatic adjustment of critical parameters such as temperature and material levels, reducing labor intensity and human error.
Applicable Materials and Industry Applications
| Material Category | Examples | Industry Applications |
|---|---|---|
| Minerals & Building Materials | Sand, quartz sand, mineral powder, metal concentrates, clay, bentonite, limestone, slag, sludge | Mining, metallurgy, casting, ceramics, building materials, wastewater treatment |
| Chemical Products | Fertilizers (organic & compound), calcium carbonate, catalysts, salts, chemical filter cakes | Chemical industry, fertilizer production, environmental technology |
| Agriculture & Biomass | Sawdust, wood shavings, wood chips, straw, distiller’s grains, soybean meal, feed, fruit pulp, potato residue | Biomass energy, feed processing, food industry, agricultural waste recycling |
| Others | Coal, coke, sugar, RDF (Refuse-Derived Fuel) | Energy, food processing, recycling & environmental protection |
We Provide Customized Industrial Rotary Dryer Solutions
We understand that no single solution fits all application needs. That’s why we specialize in designing fully customized industrial rotary dryer systems tailored to your specific requirements.
✅ Drum Size Customization:
Cylinder diameter, length, and inclination angle are designed based on your required processing capacity.
✅ Heat Source System Customization:
The most economical and efficient hot air furnace system is selected according to your available fuel and cost considerations.
✅ Material & Internal Structure Customization:
Different lining materials and lifter configurations are selected based on the material’s corrosiveness, abrasiveness, and temperature resistance.
✅ Process Integration:
We offer complete system integration, from upstream feeding and downstream dust collection to material discharge and waste heat recovery.
✅ Special Requirements Customization:
Explosion-proof design, inert gas drying, and solutions for special environmental emission standards are available upon request.