Rice Mill Paddy Dehulling Machine Maintenance Rules and Safety Procedures
Paddy dehulling machines (稻谷脱壳机) are essential equipment in rice milling facilities. This guide establishes standardized maintenance procedures to ensure stable equipment operation, improve efficiency, reduce failure rates, extend equipment service life, and enhance rice processing quality.
Scope of Application
This regulation applies to all employees of the rice mill, especially operators of paddy dehulling machines, equipment maintenance and management personnel, as well as customer supervision and feedback during the use of paddy dehulling machines. These rules cover all models of paddy dehulling machines in the factory, including but not limited to automatic, semi-automatic, continuous, and batch-type dehulling equipment.
General Principles
- Prevention First: Reduce equipment wear through regular maintenance and prevent sudden failures before they occur. Proactive care is far more cost-effective than reactive repair.
- Safety First: Operation and maintenance must strictly comply with safety regulations to ensure personnel and equipment safety. All operators must be properly trained and certified before operating the dehulling machine.
- Efficient Operation: Maintenance must balance equipment efficiency and production requirements. Schedule maintenance during off-peak hours to minimize production disruption while ensuring thorough equipment care.
Daily Operation Procedures
- Before starting the machine, inspect all fastening bolts and confirm they are securely tightened. Loose bolts during operation can cause serious vibration and component damage.
- Check the rubber rollers for wear and ensure the gap between rollers is properly adjusted according to the grain variety being processed.
- Verify that the suction system and separation screens are clean and unobstructed before each shift.
- Start the machine and allow it to reach normal operating speed before feeding grain into the hopper.
- Monitor the dehulling rate and broken rice percentage during operation, adjusting roller pressure and feed rate as needed.
- Never insert hands or tools into the machine during operation to clear blockages. Always stop the machine first.
Daily Maintenance Tasks
- After each shift, clean the machine thoroughly, removing all grain residue, husks, and dust from the working chamber and separation area.
- Inspect the rubber rollers for signs of uneven wear or grooving, which can affect dehulling quality.
- Check and clean the suction fan and air channels to maintain proper aspiration performance.
- Wipe down the machine exterior and remove any accumulated dust or debris.
Weekly Maintenance
- Check all drive belts for proper tension and signs of cracking or wear. Replace belts that show signs of deterioration.
- Lubricate all bearing points according to the manufacturer's lubrication schedule.
- Inspect the separation screens for damage or clogging, and clean or replace as necessary.
- Check all electrical connections for security and signs of overheating or corrosion.
Monthly Maintenance
- Perform a comprehensive inspection of all mechanical components, including gears, chains, and sprockets.
- Check the alignment of the feeding mechanism and adjust if necessary.
- Inspect and clean the motor ventilation openings to ensure proper cooling.
- Verify that all safety guards and emergency stop mechanisms are functioning correctly.
Long-Term Storage
- If the machine will not be used for an extended period, clean it thoroughly and apply anti-rust oil to all exposed metal surfaces.
- Remove the rubber rollers and store them in a cool, dark place to prevent degradation.
- Cover the machine with a protective tarp to prevent dust accumulation.
- Periodically rotate the rollers by hand during storage to prevent flat spots from developing.
