Key Considerations for Double Axis Mixer Operation

As core equipment in fertilizer production lines, the proper operation and maintenance of double axis mixers are directly related to production safety and equipment life. During daily use, strictly adhere to the following precautions to ensure stable operation.

Pre-startup inspections are essential for safe operation. Ensure that there are no foreign objects remaining in the mixing chamber to prevent hard impurities from blocking the blades. Check the parallelism of the two mixing shafts. A misalignment exceeding 2mm can lead to increased blade wear. Also, inspect the drive system to ensure the chain is properly tightened and the bearings are adequately lubricated. Use high-temperature-resistant lubricants to prevent lubrication failure during high-speed operation.

Strictly adhere to operating specifications during operation. Equipment startup should follow the "no-load start" principle. Wait until the agitator shaft reaches rated speed before gradually adding material to avoid sudden overload that could burn the motor. The feed rate must be controlled evenly to prevent material accumulation and "stifling." If the current exceeds 10% of the rated value, the feed should be stopped immediately and the overload protection should be activated. For fertilizer raw materials containing corrosive ingredients, the mixing chamber temperature should be monitored in real time. If it exceeds 60°C, the machine should be shut down and cooled to prevent high temperatures from accelerating equipment corrosion.

Post-downtime maintenance is essential. After each downtime, the mixing chamber should be cleaned of residual material, especially scale buildup in the blade gaps. This can be done with a high-pressure water jet followed by a stiff brush. Blade wear should be inspected regularly. When the cutting edge thickness decreases by 30%, it must be replaced. During replacement, ensure that the weight of both blades is balanced to prevent eccentric vibration during operation. Bearing seats should be regreased regularly, and seals should be inspected for aging to prevent material leakage and lubricant contamination.

In addition, operators must undergo professional training and be familiar with the location of the emergency stop button so they can respond immediately in the event of abnormal vibration or noise. Only by incorporating these precautions into daily management can the performance advantages of the double axis mixer be fully utilized and the failure rate be reduced.