Rotary Drum Dryer for Coal Slime with Anti-Sticking Mechanism, High Capacity, and Under 10% Moisture

Rotary drum dryer for coal slime

1.Product Introduction

• A Rotary Drum Dryer for coal slime is specialized thermal equipment designed to dry highly sticky, fine-grained coal washing by-products. Because wet coal slime has a high water content (typically 20%–30%) and a strong tendency to stick and clump, this dryer is uniquely engineered with internal anti-sticking mechanisms to break down clumps and reduce moisture to under 10%, turning waste slime into a valuable fuel.

2.Application

• Industrial Boiler Fuel: Converting wet, unusable coal slime into dry, high-calorific powder or briquettes for power plants and factories.

• Coal Blending: Mixing dried coal slime with raw coal to optimize fuel mixtures for steel mills and thermal plants.

• Briquette Production: Preparing dry slime as a binder-ready raw material for making industrial coal briquettes.

• Environmental Cleanup: Reducing the volume and moisture of coal slurry ponds, facilitating waste reclamation and site cleanup.

3.Working Principle

The dryer operates on a continuous, tightly sealed heat exchange mechanism:

• Feeding: Wet coal is continuously fed into the slightly inclined, rotating cylindrical drum.

• Cascading & Drying: Internal lifting flights and chains lift the coal and shower it through the hot air stream. This constant movement breaks up clumps and creates a uniform curtain of coal, allowing rapid heat transfer and moisture evaporation.

• Discharge & Safety Control: The dried coal slides to the lower discharge end. An induced draft fan pulls the moist air out through a cyclone and baghouse filter to capture fine coal dust. Safety systems, such as inert gas injection or explosion relief valves, are often integrated to manage combustible coal dust safely.

4.Technical Specifications