Notes

How to make use of and preserve wood pellet machine appropriately?<br>
Grinding before making use of

The majority of roller as well as level dies in pellet machine are refined by high-heat treatment. After planing, boring, milling, as well as quenching procedure, there are typically many cloths inside the die openings, which may affect the pelletizing results and also production. Therefore, prior to beginning a new pellet machine, or after replacing a new die, you require to grind it thoroughly.



We utilize oil combination to process grind the roller and flat die. The oil mixture is composed of 20% fine sand, 65% biomass materials( like sawdust), 15% waste engine oil. Before feeding the oil mix to the pellet machine, you must change the clearance between roller and flat die to 0.1-0.3 mm. The grinding procedure must last 15-40 min.



For ring die pellet mill, the grinding process needs more oil blend and longer time. The quantity of oil mixture is 10% that of pellet production per hr. The grinding time is 30-50 min. As well as the clearance between ring die as well as the roller is 0.1-0.4 mm.



Pretreatment of raw materials

The appropriate dampness web content of biomass materials should in between 14% as well as 20%. Dry products are hard to take form, damp products will certainly make the pellets loose. The size of the raw materials must be less than the hole dimension of pellet mill dies. Generally, the hole dimension of the pellet mill die is 6mm as well as 8mm, and also the dimension of basic materials should be under 5mm, or they may block the holes and lower pellet production.



The sticky force identifies the developing price of the pellets Many biomass products consist of lignin, which would thaw under heat and serve as binder. Yet some materials like rice husk has reduced adhesive pressure. It need to be combined with sawdust or binders to make pellets



The thickness and also length of the timber pellets.


The thickness of wood pellets is determined by the opening size of the die. The length is established by the slicer. In flat die pellet machine, the slicer is mounted under the level die, while in ring die pellet machine, the slicer is set up outside the ring die. Both of them can be gotten used to accomplish various sizes. For your own use, it is much better to be brief. For transport and marketing, it recommend to be a little long.



After the wood pellets appear from the pellet machine, they are warm with some steams. They can be dried out as well as cooled in an open area, or by a counter-flow colder. Quick cooling can enhance the firmness of the timber pellets, as well as promote storage and transportation.



Do not close down the machine right after making pellets.

When you ended up making pellets, don't close the pellet machine down simultaneously. Include some mixed oil as well as biomass products to the pellet machine and allow it run for 1-2 min. In richi pellet mill , we can fill the die openings with oil mix, to make sure that we can directly start making pellets the next time. With this process, we can not only keep the mold, but likewise conserve time. When the pellet machine stops, loosen up the adjusting screw as well as remove the left products.



The maintenance of roller, die, shafts as well as gearbox

You ought to remove all tough items and metal blocks in basic materials before feeding them right into the pellet machine, or they would certainly create damage to the roller, die or main shaft. You can install a tubular magnet on the feed receptacle.



The warmth inside the pelletizing chamber can rise to 80 ℃, and the roller maintains high pressure during operation. As there is no dust guard in the pellet machine, so you require to tidy up the bearing every 2-5 hours, and also oil it with oil. After every 8 functioning hrs, the main shaft demand to be fueled oil. The transmission demand cleaning every half a year. If there is unusual high warmth in the gearbox, you can make use of much better equipment oil and increase the clearance between the gears for maintenance. The securing screw in the transmission part also require to be changed on a regular basis.



How to change roller and die?

When the rollers wears, you can replace the roller covering or the whole collection of roller. If homemade pellet maker get loose or locked, you need to change the bearing as well as even the shaft.




In ring die pellet machine, simply loosen the hoop chuck, take the old ring die apart and also replace it with a brand-new one. If the ring die is repaired with screws, you need to tremble the ring die delicately, and get rid of the screw with also toughness.



In flat die pellet machine, the level die is installed with maintaining nuts in the keyway. On the 2 sides of the flat die, there are two in proportion screw holes. You can utilize the screw driver to press them out, or make use of a magnet to pull them out. During your pushing or pulling, maintain the flat die shaking with a hammer, to make sure that the screw will not embeded the screw opening.



Security of the drive engine

Pick the matched power according to the necessary production. If the power is inadequate, the manufacturing will certainly be reduced and the pelletizing result is poor. If the power is too huge, it will certainly eat even more power, increase the fatigue, as well as shorten the service life of roller and also die.



The exam as well as repair should be performed in power off problem. The machine needs to be placed near the functioning location, so as to decrease the moving time as high as feasible. Protect it from water logging, rainfall, electric leak, fire, etc.



Just when we use the pellet machine appropriately and also maintain it frequently can we make the most of the pellet machine and lengthen its functioning life.


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