2026/01/28
The equipment is optimized with a core structure: a large pitch at the feeding end for rapid feeding and a small pitch at the discharge end for thorough turning. Blades are coated with a wear-resistant layer to prevent sticking and clogging. The inner and outer spiral angles can be independently adjusted: a larger inner angle for high-moisture materials to increase thrust, and a larger outer angle for dry materials to expand the oxygenation area. A PLC automatic shifting system is integrated, allowing for one-button unlocking and positioning for trough changes, significantly shortening changeover time and improving the efficiency of continuous multi-trough operation.
In terms of control and process, variable frequency speed control and load feedback are used to automatically adjust the speed according to material resistance, and the motor automatically shuts down in case of malfunction. Temperature, speed, and position data can be monitored remotely. Raw material pretreatment involves controlling particle size to ≤3cm, moisture content to 50%-60%, and C/N ratio to 25-30:1. The fermentation trough width and depth are adapted to the equipment. The first turning occurs when the temperature reaches 60-70℃, maintaining 55-65℃ during fermentation with an oxygen concentration >10%, and adjusting the turning frequency according to temperature and humidity.
For maintenance, pre-shift checks of blades, reducers, and other components are performed, and adhering materials are cleaned after each shift. Regular oil changes and tightening are also carried out. The system forms a closed loop with crushers, transfer machines, and ventilation systems. Personnel training is also crucial to prevent misoperation.
Through these methods, turning uniformity exceeds 95%, the composting cycle is shortened by 15%-20%, energy consumption and labor costs are significantly reduced, and the operational stability of the fertilizer making machine is simultaneously improved.
