Unloading Operating Procedures

• Preparation before unloading: After mixing is complete (usually 15-20 minutes), stop the machine before unloading. Check that the channel below the discharge port is unobstructed and ensure that transport vehicles or belt conveyors are in place to prevent material spillage.

• Unloading method: The machine must be completely emptied in one go. It is strictly forbidden to leave any material in the machine for the next batch mixing, otherwise it will cause cross-contamination between old and new materials, disrupting the nutrient ratio.

• Cleaning after unloading: At the end of each shift or before changing the formula, the bottom cleaning port must be opened to remove any residual material accumulated in the gap between the auger shaft and the machine casing to prevent caking and affecting the uniformity of the next mixing.

Key Risk Controls

• Moisture and Agglomeration Prevention: Organic fertilizer raw materials have a high moisture content (typically 25%-35%). After unloading, they must immediately proceed to the next process (such as granulation or transfer drying). If the material remains for too long, it easily absorbs moisture and agglomerates, clogging subsequent equipment.

• Anti-Clogging Operation: If discharge is obstructed, never use an iron rod to forcibly poke the material, as this may damage the spiral blades or liners. Use a wooden mallet to gently tap the machine casing to vibrate and assist discharge, or stop the machine and clean manually.

• Safety Precautions: Keep your body away from the splash area at the discharge port during unloading. If the equipment is equipped with a pneumatic or hydraulic discharge door, regularly check the sealing strips for aging to prevent leakage.