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Prevention and rapid cleaning methods for clogging of the screening screen of the granulator
Date: 2025-12-12Read: 1
Whole pellet machines are used in the pharmaceutical, food, and feed industries to break down agglomerates after compression or granulation into uniform particles. However, screen clogging is one of the more common faults in its operation, which not only reduces production capacity, but may also lead to particle size exceeding the standard or even equipment overload shutdown.
The main causes of blockage include: high material humidity, enrichment of viscous components (such as sugar and starch), unreasonable sieve design, or uneven feeding. Preventive measures should be controlled from the source:
Control material moisture: Ensure entrywhole grain machineThe moisture content of the previous material is below the critical value (usually<5%);
Optimize screen selection: Choose appropriate aperture and porosity based on particle hardness to avoid "small holes and large materials";
Adopting anti stick coating screen mesh, such as PTFE or ceramic coating, to reduce material adhesion;
Installation of vibration assistance device: Some models are integrated with ultrasonic or air blowing net systems for real-time blockage prevention.
Once a blockage occurs, quick cleaning is crucial. Recommend the following steps:
Immediately stop the machine and cut off the power to prevent the motor from burning out;
Disassemble the quick installation screen assembly (most GMP models support tool free disassembly);
Use a soft bristled brush or compressed air (pressure<0.3 MPa) to clean from the inside out, and it is strictly prohibited for metal scrapers to damage the screen surface;
For stubborn adhesives, they can be soaked in warm water or specialized cleaning solution to soften and then rinsed;
Before reinstalling, check the integrity of the screen mesh and conduct a no-load test run.
Regular maintenance is equally crucial: it is recommended to perform CIP cleaning after each shift and check the wear of the screen every month. By implementing the dual strategy of "prevention first+rapid response", significant improvements can be madewhole grain machineContinuity of operation and stability of product quality.