Rotary Drum Dryer for Organic Fertilizer with 10%-15% Moisture Content and Continuous Heat Exchange Mechanism for Animal Manure Fertilizers

Rotary drum dryer for organic fertilizer

1.Product Introduction

A Rotary Drum Dryer for organic fertilizer is specialized thermal equipment designed to reduce the moisture content of organic waste and granulated organic fertilizers (derived from animal manure, compost, or agricultural residues). Raw organic materials typically contain 30%–60% moisture, which triggers unwanted fermentation and odor. This dryer efficiently lowers moisture levels to 10%–15%, stabilizing the nutrients, preventing mold, hardening the granules, and extending shelf life.

2.Application

• Animal Manure Fertilizers: Drying granulated or bulk fertilizers made from chicken, cow, pig, or sheep manure.

• Compost & Sewage Sludge: Processing municipal organic waste, food waste compost, and treated sludge into commercial-grade fertilizer.

• Bio-Organic Fertilizers: Safely drying bio-fertilizers containing beneficial microorganisms using low-temperature settings to preserve bacterial activity.

• Crop Residue Fertilizers: Drying organic fertilizers formulated from straw, humic acid, peat, and plant residues.

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