NPM Biofuel Maintenance Station
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Useful Maintenance Tips
BY James Wang

Add oil to the transmission parts at regular time, add lubricating oil to pressure roller every two hours, add lubricating oil to front bearing ofmain shaft every four hours, ensuring transmission parts of pellet mill run flexibly and reducing workload.

Change the lubricating oil of gear case at regular time. For new pellet mills, change oil after half a month of operation;change oil after every 1000 hours of continual operation, which can lengthen the lifespan of gear case.

Every week, check all the connected parts loose or not carefully, meanwhile, clean screw conveyor and conditioner, avoid mechanical problems.

Half a month, check the wear situation of driving key, pressure die lining and encircling hoop; change them in time when the wear is discovered, avoid ring die shaking to affect pellet quality.

Use high quality ring die and pressure roller. Prohibit using inferior ring die with the lose of roundness and coarse inner bore; select compression ratio according to different formulas, ensuring smooth discharging, avoid increasing electricity consumption and reducing capacity.

Adjust the clearance between ring die and pressure roller every shift. When pellet mill is blocked, must ease off pressure roller, clear material in inner wall of ring die, adjust the clearance between ring die and pressure roller again, absolutely not allowed to start forcibly, avoid the transmission parts and bearing guard damaged by suffering violent vibration.

Prohibit overload production. In the manufacturing process, can’t exceed the producing capacity which pellet mill can withstand, otherwise motor will be damaged and accelerate wear of parts, shortening the useful life of pellet mill.

Iron and sundries must be removed from raw material, clean iron removal device every shift, avoid foreign matter entering the working chamber to cause pellet mill body vibration and ring die cracking.

Right operation and maintenance at ordinary times is the key for lengthening the operating life of pellet mills, so if we can strengthen the maintaining management of equipment at ordinary times, the enterprise benefits will increase significantly.

For more information, please take no hesitation to contact us.

If you have any questions related to the maintenance of NPM pellet mills, please submit below and we will contact you as soon as possible.