The drying effect of biology organic fertilizer  dryers is determined by multiple factors, including materials, equipment, operation, and environment. A weakness in any of these aspects will directly affect the final efficiency.

First, the characteristics of the material itself are crucial. The initial moisture content, viscosity, and particle size of the raw materials are fundamental. Excessive moisture increases the heat load; excessive viscosity (such as chicken manure) easily causes the material to stick to the drum walls, clump together, form an insulating layer, and severely hinder heat transfer; uneven particle size leads to uneven drying, with large pieces burnt on the outside and raw on the inside. Furthermore, bio-organic fertilizer is rich in live bacteria and is a heat-sensitive material. The drying temperature must be strictly controlled below 65-75℃, otherwise, beneficial microorganisms will be killed, damaging the fertilizer's effectiveness.

The core lies in the fertilizer produciton machine and process. Whether the type of dryer (e.g., rotary or belt dryer) matches the production scale is critical. The rationality of the design of the internal lifting device (lifting plates) directly determines whether the material can be fully lifted, forming a uniform material curtain, and making full contact with the hot air. Meanwhile, poor cylinder insulation and system sealing will result in significant heat energy waste.

Precise control of operating parameters is crucial. This includes hot air temperature, air velocity, drum speed, and material residence time. The principle of "high airflow, medium to low temperature" must be followed to ensure sufficient airflow to remove evaporated moisture without damaging bacteria. Rotation speed and air velocity must be coordinated to ensure appropriate material residence time.

Finally, daily maintenance and the environment are important. Regularly cleaning the inner wall of the drum and removing accumulated material and blockages from the dust removal system is fundamental to maintaining the designed ventilation volume. Ambient air temperature and humidity also have an impact; high humidity will reduce drying efficiency, requiring corresponding adjustments to operating parameters.