What are the key points in using feed extruder?

1. Equipment status confirmation and pretreatment
1. Comprehensively check the electrical circuits, transmission devices and lubrication systems of the main machine and supporting equipment
2. Remove the residues of core components such as die heads and screws, and check the wear degree of vulnerable parts
3. Calibrate the weighing system and temperature control instrument to ensure that the measurement accuracy meets the standards

2. Raw material ratio and tooling preparation
1. Check the moisture content of the raw materials and control it in the range of 12%-15%, and the crushing particle size should meet the process standards
2. Prepare special wrenches, temperature guns and other tools to check the matching of the mesh size of the screen
3. Pre-adjust the steam pressure to the range of 0.3-0.5MPa and set the temperature gradient parameters

3. System startup and parameter optimization
1. Start the equipment step by step in the order of auxiliary machines first and then the main machine
2. Observe the current fluctuations and gradually increase the feed rate to 80% of the rated capacity
3. Monitor the plasticization state of the material through the sight glass and adjust the screw speed and die head pressure

4. Key points of production process control
1. Check the expansion degree and gelatinization degree of the finished product every 2 hours
2. Regularly clean the scale on the inner wall of the conditioner to prevent cross contamination
3. Operators must wear dust masks and anti-scalding equipment and keep a safe distance
4. It is strictly forbidden to perform high-risk operations such as screw disassembly and assembly when the equipment is running