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Help CenterHigh Capacity Rotary Drum Dryer for Sand and Gravel Construction Material
Product Spotlights
2.Low damage to root systems
3.Adjustable screen aperture
4.Large continuous processing capacity
5.Anti-clogging rotary design
6.Durable wear-resistant steel
7.Easy to clean and maintain
8.Stable low-noise operation
9.Compact space-saving structure
10.Wide adaptability for various soils
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1. Product Description
The High Capacity Rotary Drum Dryer for Sand and Gravel Construction Material is a large-scale high-yield industrial drying equipment specially developed for construction sand, gravel aggregate, river sand, quartz sand and building material sand processing projects. Construction sand and gravel materials feature large stacking volume, high natural moisture, strong abrasiveness and wide particle size distribution. Excessive and unstable moisture in finished sand will cause poor aggregate gradation, reduced bulk density, uneven mixing with cement mortar and decreased concrete strength, seriously affecting the quality of construction engineering and commercial concrete finished products. Traditional sand dryers have small single-machine output, low thermal utilization rate, serious heat loss and uneven material flipping, which cannot meet the large-volume and high-efficiency production demands of modern construction material processing plants and machine-made sand production lines. This high-capacity sand-gravel rotary dryer adopts oversized heavy-duty drum structure, multi-layer anti-wear lining plate, high-efficiency intensive heat exchange system and large-air-volume circulating hot air design. It can continuously and thoroughly remove surface water and gap residual moisture from various wet sand and gravel aggregates, ensuring uniform drying and stable moisture indicators of finished construction materials. With optimized material lifting and cascading structure, the equipment greatly improves single-machine processing capacity and thermal efficiency while reducing unit energy consumption. It supports 24-hour uninterrupted full-load operation and is the preferred core drying equipment for large-scale standardized production of construction sand and gravel materials.
2. Working Principle
This high-capacity construction material dryer adopts large-flow countercurrent circulating heat exchange and layered uniform dehydration working principle, fully optimized for high-volume and high-abrasion sand and gravel materials. Wet river sand, machine-made sand and mixed gravel aggregates are continuously and quantitatively fed into the heavy-duty rotary drum through a stable feeding system. The multi-group intensive wear-resistant lifting plates perform periodic lifting, flipping and uniform cascading on bulk sand and gravel materials, effectively scattering accumulated wet materials and eliminating drying dead zones inside the drum. A thick and uniform material curtain is formed in the drying chamber to maximize the contact area between sand-gravel aggregates and high-temperature circulating hot air. The large-capacity graded hot air system conducts full-coverage multi-stage countercurrent heat exchange, gradually evaporating surface free moisture and deep interstitial moisture of sand and gravel layer by layer. The segmented temperature control and material spreading mode ensure thorough and balanced dehydration of materials with different particle sizes, realizing consistent dryness of finished sand products. The intelligent PLC control system dynamically adjusts hot air volume, drying temperature and feeding amount according to material humidity and production load, maintaining high-efficiency and low-consumption operation under long-term full-load working conditions. Dust and fine sand generated during drying are fully recycled through a sealed dust removal system to avoid material loss and environmental pollution. After continuous high-capacity cyclic drying treatment, dry, uniform and high-quality construction sand and gravel materials are stably discharged, fully meeting the batching and processing standards of commercial concrete, building mortar and construction engineering.
3. Core Features
1. High-capacity heavy-duty structural design, professionally adapted to large-scale continuous drying of sand and gravel construction materials.
2. Multi-layer wear-resistant lining configuration, effectively resisting long-term scouring of high-abrasion sand aggregates with long service life.
3. Intensive graded heat exchange technology, high thermal utilization rate and significantly reduced unit energy consumption.
4. Optimized dense material lifting structure, uniform material flipping and no drying dead angles for consistent finished sand quality.
5. Large-flow hot air circulation system, realizing high-throughput dehydration and improving overall production efficiency.
6. Intelligent full-load adaptive control, stable operation and low failure rate for long-cycle industrial production.
7. Wide material adaptability, suitable for river sand, machine-made sand, quartz sand and various construction aggregate drying.
4.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 |
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