I. Product Overview:
The organic fertilizer dryer is a high-efficiency drying equipment specially designed for processing granular or powdery organic fertilizers. Its main function is to reduce the moisture content of finished fertilizers to meet the requirements for storage, packaging, and transportation.
It is widely used in the production of fermented livestock and poultry manure fertilizers, compost, biogas residue fertilizers, bio-organic fertilizers, and compound microbial fertilizers. As a key piece of equipment in organic fertilizer production lines, it is indispensable for ensuring stable and high-quality output.
Organic fertilizer dryers typically use hot air or solar heating to evaporate moisture from high-humidity organic materials, thus lowering the moisture content for better preservation and usability. After drying, the moisture content is usually reduced to below **12%**, effectively extending storage life and improving fertilizer utilization.
Modern organic fertilizer dryers not only focus on drying efficiency but also continuously improve in energy saving, material adaptability, and environmental emission control. This ensures the preservation of nutrients while improving the appearance and quality of finished products, extending shelf life. Featuring compact structure and stable operation, the equipment is suitable for continuous production in small, medium, and large fertilizer plants. 
II. Working Principle:
Most organic fertilizer dryers adopt a rotary drum structure, installed at a certain incline. Driven by a motor, the drum rotates slowly while material enters from the feed end. Inside the drum, built-in lifting plates continuously lift and scatter the material, allowing it to fully contact the hot air, ensuring uniform heating and rapid moisture evaporation.
The heat source can be natural gas, coal, biomass pellets, fuel oil, steam, or hot air furnaces. Hot air is introduced into the dryer by an induced draft fan and flows either counter-current or co-current with the material, depending on process requirements.
During drying, moisture in the material quickly evaporates into steam and is discharged through the exhaust system after dust and odor removal, meeting environmental standards. The dried fertilizer is discharged from the outlet, with moisture content controlled below 12%, ready for storage or packaging.
Core process:
1. Material is conveyed into the dryer feed port.
2. The drum rotates slowly while lifting plates scatter the material.
3. Hot air fully contacts the material, rapidly removing moisture.
4. Moist exhaust gas is treated via dust removal and deodorization systems.
5. Finished product is discharged and enters cooling or packaging stages.
III. Applications:
The organic fertilizer dryer has wide applicability, not only for fertilizer production but also for drying other high-moisture granular or powdery materials, such as:
*Livestock and poultry manure fertilizers: Fermented chicken, cow, pig, sheep manure.
*Agricultural waste fertilizers: Straw powder, mushroom residue, soybean residue, peanut shell powder, and other organic raw materials.
*Biogas plant by-products: Biogas residues and slurry-based fertilizers.
*Bio-organic and compound fertilizers: Bacterial fertilizers, microbial fertilizers, and microbial carriers.
*Other industries: Distiller’s grains, medicinal residues, sugar residues, sawdust, and feed ingredients.
In large-scale organic fertilizer production lines, dryers are often used in combination with coolers, screening machines, and packaging machines for continuous operations, significantly improving production efficiency.
IV. Product Features:
*Efficient Drying
Rotary drum design with optimized lifting plates maximizes material-hot air contact area, ensuring uniform and fast drying. Single-unit capacity ranges from **1–20 tons/hour** to meet different production needs.
*Nutrient Protection
Low-temperature drying reduces nitrogen volatilization and loss of beneficial microorganisms, preserving fertilizer nutrients and microbial activity.
*Energy-Saving Design Hot air recycling and thermal insulation minimize heat loss, and waste heat utilization raises thermal efficiency to over **70%**, reducing energy costs.
*High Adaptability
Adjustable drum inclination, rotation speed, airflow direction, and temperature range accommodate different materials and process requirements.
*Stable Operation
Heavy-duty riding rings, rollers, and transmission systems ensure smooth, low-noise operation with minimal maintenance and long service life.
*Environmentally Compliant
Multi-stage dust removal and deodorization systems effectively control dust and odor emissions to meet environmental standards.
*Automated Control
Optional PLC intelligent control system enables real-time monitoring and automatic adjustment of temperature, humidity, and rotation speed, reducing labor requirements.
Organic fertilizer dryers are available in a variety of models and specifications to suit different production capacities. Common types include rotary drum dryers, belt dryers, and fluidized bed dryers, each offering different drying efficiency and throughput.
When operating an organic fertilizer dryer, it is important to control drying temperature and time to avoid over-drying or overheating, which can cause thermal decomposition of organic matter, reducing fertilizer quality and nutrient content. Waste gas must also be properly treated to avoid environmental pollution.
As a critical link in the fertilizer production line, the dryer directly affects both product quality and production costs. Choosing a high-efficiency, energy-saving, environmentally friendly, and highly adaptable dryer can not only boost production efficiency but also ensure strong market competitiveness.
For different output capacities and material properties, Zhengzhou Yizheng offers customized designs and complete line solutions to help users achieve stable, high-quality fertilizer production.
For more inquiries or more information, please contact:
Sales Department / Tina Tian
+86 – 15538237222
Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd
Email: tianyaqiong@yz-mac.cn
Website: www.yz-mac.com
Post time: Aug-11-2025