Notes

Just how to utilize and also maintain wood pellet machine appropriately?<br>
Grinding before making use of

A lot of roller and also level dies in pellet machine are refined by high-heat treatment. After planing, exploration, milling, as well as quenching procedure, there are generally many rags inside the die openings, which might influence the pelletizing results as well as manufacturing. For that reason, prior to starting a brand-new pellet machine, or after replacing a brand-new die, you require to grind it completely.



We use oil blend to refine grind the roller as well as flat die. The oil mix is made up of 20% fine sand, 65% biomass products( like sawdust), 15% waste engine oil. Before feeding the oil mixture to the pellet machine, you must readjust the clearance in between roller and also level die to 0.1-0.3 mm. The grinding process needs to last 15-40 minutes.



For ring die pellet mill, the grinding process requires even more oil mixture and longer time. The amount of oil mixture is 10% that of pellet production per hour. The grinding time is 30-50 minutes. And the clearance in between ring die and the roller is 0.1-0.4 mm.



Pretreatment of raw materials

The ideal moisture web content of biomass products need to in between 14% and also 20%. Dry materials are upsetting form, wet products will certainly make the pellets loose. The size of the raw materials ought to be less than the hole dimension of pellet mill dies. Generally, the hole size of the pellet mill die is 6mm as well as 8mm, and also the dimension of raw materials must be under 5mm, or they may obstruct the holes as well as minimize pellet manufacturing.



The adhesive force figures out the creating price of the pellets The majority of biomass materials contain lignin, which would certainly melt under heat and act as binder. Yet some materials like rice husk has low adhesive pressure. It need to be mixed with sawdust or binders to make pellets



The density and also size of the wood pellets.

The thickness of wood pellets is established by the hole dimension of the die. The length is identified by the slicer. In flat die pellet machine, the slicer is installed under the level die, while in ring die pellet machine, the slicer is mounted outside the ring die. Both of them can be adapted to accomplish various sizes. For your very own usage, it is much better to be brief. For transport and marketing, it suggest to be a little lengthy.



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



Don't shut down the machine right after making pellets.

When you completed making pellets, don't close the pellet machine down at the same time. Include some combined oil as well as biomass materials to the pellet machine and let it run for 1-2 minutes. By doing this, we can load the die openings with oil blend, so that we can straight begin making pellets the following time. With this process, we can not only keep the mold and mildew, yet likewise save time. When the pellet machine quits, loosen up the adjusting screw as well as eliminate the left products.



The upkeep of roller, die, shafts and also transmission


You should remove all difficult things and also metal blocks in raw materials prior to feeding them into the pellet machine, or they would cause damage to the roller, die or primary shaft. You can install a tubular magnet on the feed hopper.



The warm inside the pelletizing chamber can rise to 80 ℃, and the roller maintains high pressure throughout procedure. As there is no dust protector in the pellet machine, so you need to clean up the bearing every 2-5 hours, and also oil it with oil. After every 8 working hours, the primary shaft demand to be fueled oil. richi pellet cleansing every half a year. If there is uncommon high warmth in the gearbox, you can make use of much better equipment oil as well as increase the clearance between the gears for maintenance. The fastening screw in the transmission part also need to be changed routinely.




How to replace roller and also die?

When the rollers wears, you can replace the roller shell or the entire collection of roller. If the bearing get loosened or locked, you need to change the bearing and also the shaft.



In ring die pellet machine, simply loosen the hoop chuck, take the old ring die apart and also change it with a new one. If the ring die is fixed with screws, you require to drink the ring die delicately, and remove the screw with also strength.



In level die pellet machine, the level die is installed with keeping nuts in the keyway. On the 2 sides of the flat die, there are 2 symmetrical screw openings. You can utilize the screw motorist to press them out, or use a magnet to draw them out. During your pushing or pulling, keep the flat die shaking with a hammer, to ensure that the screw will not stuck in the screw hole.



Protection of the drive engine

Choose the matched power according to the necessary manufacturing. If the power is not enough, the production will certainly be reduced and the pelletizing impact is poor. If Richi machine is as well huge, it will eat even more power, accelerate the fatigue, and reduce the service life of roller and also die.



The examination as well as fixing need to be performed in power off condition. The machine should be put near the working area, so regarding minimize the relocating time as long as feasible. Secure it from water logging, rainfall, electrical leak, fire, and so on.



Only when we use the pellet machine effectively and maintain it routinely can we make the most of the pellet machine and also extend its working life.


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