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2.Stable performance
3.Reliable operation
4.Proven track record
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Product Overview
Coal slime, a sticky and high-moisture by-product of coal preparation plants, presents severe handling challenges due to its tendency to agglomerate, clog, and stick to processing equipment. Our Advanced Coal Slime Rotary Drying System is engineered specifically to overcome these bottlenecks. As a premier global manufacturer, we combine robust mechanical design with innovative thermal dynamics to transform low-value, high-moisture ($25\% - 40\%$) coal slime into a high-quality, free-flowing, and high-calorific fuel ($
Working Principle: The "Anti-Sticking & Fragmentation" Process
Unlike standard aggregate or sand dryers, our specialized coal slime dryer utilizes a unique thermodynamic and mechanical fragmentation process to prevent clogging and optimize heat transfer:
Anti-Caking Feeding & Dispersal: The wet coal slime is introduced into the rotary drum via a heavy-duty screw feeder equipped with an anti-blocking mechanism. Upon entry, the high-moisture slime is immediately hit by a blast of high-temperature flue gas, instantly flash-drying the outer surface to reduce its stickiness.
Mechanical Fragmentation & Lifting: Inside the drum, proprietary disintegrating shafts, chain-curtain lifters, and cross-shaped flights work in tandem. As the drum rotates, these heavy-duty internal elements mechanically break down the sticky coal slime blocks into fine granules.
Optimized Heat & Mass Transfer: The continuous shredding action drastically multiplies the surface area of the material exposed to the hot air. This creates a dense, uniform "material curtain," enabling rapid thermal exchange and constant evaporation without blind spots.
Graduation Discharge & Multi-Stage Dedusting: Dried coal slime is conveyed out via an airtight discharge system. The exhaust gas, carrying fine coal dust, passes through a high-efficiency cyclone collector followed by a wet scrubber or baghouse filter, ensuring clean operation and near-zero product loss.
Manufacturer Technical Highlights & Key Features
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Proprietary Anti-Sticking Technology
The drum interior features a self-cleaning chain structure and customized scraping plates. It completely eliminates the common industry issue of material sticking to the inner walls or forming large, un-dryable lumps.
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Heavy-Duty Wear & Corrosion Protection
Coal slime often carries sulfur compounds which cause acid corrosion. Our drums are fabricated from specialized boiler-grade plates and integrated alloy liners, significantly increasing the equipment lifespan under acidic and abrasive conditions.
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Explosion-Proof & Intelligent Safety Systems
Drying coal fine particles involves potential dust explosion risks. Our systems are equipped with automated oxygen-deficit monitoring, carbon monoxide (CO) sensors, automatic nitrogen/steam inerting systems, and explosion relief valves to ensure $100\%$ safe operation.
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Flexible Thermal Integration
To minimize operating costs, our drying systems can be paired with various heat sources, including pulverized coal burners, biomass gasifiers, natural gas furnaces, or even industrial waste heat/flue gas from adjacent power plants, achieving near-zero fuel costs.
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Smart SCADA Automation
Integrated with a Siemens PLC control system, the dryer automatically synchronizes the feeding rate, drum rotation speed, and heat input based on real-time feedback from input/output moisture sensors, maintaining a strictly uniform final moisture level.
Why Partner With Us?
As a dedicated thermal equipment manufacturer with decades of experience in mining and bulk material handling, we offer turnkey (EPC) solutions—including site surveying, custom blueprint design, precision manufacturing, on-site installation, and lifelong technical support. We help coal mines and wash plants turn hazardous environmental waste into a highly profitable energy asset.
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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