Rotary Drum Dryer for Bagasse with 50% Moisture Reduction, High-Temperature Airflow, and Continuous Sealed Heat Exchange

Rotary drum dryer for bagasse

1.Product Introduction

A Rotary Drum Dryer for bagasse is a specialized, heavy-duty drying system designed to handle the fibrous, high-moisture sugarcane waste left after juice extraction. Fresh bagasse typically contains about 50% moisture, which makes it highly inefficient to burn and prone to fermentation. This dryer utilizes advanced internal flight designs and high-temperature airflow to rapidly reduce moisture to 10%–15%, transforming a wet by-product into a high-value biofuel or industrial raw material.

2.Application

• Sugar Mill Cogeneration: Pre-drying bagasse to feed the sugar mill's boilers, significantly increasing combustion efficiency and generating green electricity and steam.

• Biomass Pelleting & Briquetting: Preparing fibrous bagasse for compression into high-density fuel pellets or briquettes for commercial sale.

• Pulp & Paper Manufacturing: Drying bagasse fibers to be stored and used as eco-friendly pulp feedstock for paper and tableware.

• Animal Feed & Composting: Processing bagasse into dry, sterile dietary fiber for livestock feed or organic compost bases.

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