Notes

Exactly how to utilize and also maintain wood pellet machine appropriately?<br>
Grinding prior to utilizing

Many roller as well as flat dies in pellet machine are processed by high-heat treatment. After planing, boring, milling, and quenching process, there are usually lots of cloths inside the die holes, which might affect the pelletizing effects and production. Therefore, before starting a brand-new pellet machine, or after changing a new die, you need to grind it thoroughly.



We make use of oil mix to process grind the roller and also flat die. The oil combination is made up of 20% fine sand, 65% biomass products( like sawdust), 15% waste engine oil. Prior to feeding the oil blend to the pellet machine, you need to readjust the clearance between roller and level die to 0.1-0.3 mm. The grinding process ought to last 15-40 min.



For ring die pellet mill, the grinding procedure needs even more oil mix and longer time. The amount of oil blend is 10% that of pellet manufacturing per hour. The grinding time is 30-50 minutes. As well as the clearance between ring die and also the roller is 0.1-0.4 mm.



Pretreatment of resources

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



The adhesive force determines the forming price of the pellets A lot of biomass products include lignin, which would melt under heat and function as binder. But some materials like rice husk has reduced adhesive force. It require to be mixed with sawdust or binders to make pellets



The thickness and also size of the timber pellets.

The thickness of wood pellets is determined by the hole size of the die. The length is figured out 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 installed outside the ring die. Both of them can be adapted to attain various sizes. For your own use, it is much better to be brief. For transport and also marketing, it recommend to be a little lengthy.



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



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

When you ended up making pellets, do not close the pellet machine down at once. Include some blended oil and biomass products to the pellet machine and let it run for 1-2 min. In this way, we can fill up the die openings with oil mix, to ensure that we can straight begin making pellets the next time. With this procedure, we can not only preserve the mold and mildew, however also save time. When the pellet machine quits, loosen the adjusting screw as well as clear away the left products.



The maintenance of roller, die, shafts and also gearbox

You must eliminate all difficult items and also steel blocks in basic materials prior to feeding them into the pellet machine, or they would cause damages to the roller, die or main shaft. You can set up a tubular magnet on the feed hopper.



The warm inside the pelletizing chamber can rise to 80 ℃, and also the roller maintains high pressure throughout operation. As there is richi pellet mill in the pellet machine, so you require to clean up the bearing every 2-5 hrs, as well as lubricate it with oil. After every 8 working hours, the major shaft requirement to be oiled. The transmission requirement cleansing every half a year. If there is abnormal high heat in the transmission, you can utilize far better gear oil and also boost the clearance between the equipments for maintenance. The securing screw in the transmission part also need to be replaced frequently.




Exactly how to replace roller and also die?

When the rollers wears out, you can change the roller shell or the whole collection of roller. If the bearing obtain loose or secured, you need to change the bearing and even the shaft.




In ring die pellet machine, simply loosen up the hoop chuck, take the old ring die apart as well as change it with a new one. If the ring die is taken care of with screws, you require to tremble the ring die delicately, and get rid of the screw with also stamina.



In level die pellet machine, the flat die is set up with preserving nuts in the keyway. On the 2 sides of the flat die, there are two symmetrical screw openings. You can use the screw chauffeur to press them out, or use a magnet to draw them out. Throughout your pressing or pulling, maintain the level die vibrating with a hammer, to make sure that the screw won't embeded the screw hole.



Security of the drive engine

Select the matched power according to the required manufacturing. If the power is inadequate, the manufacturing will be low and also the pelletizing effect is poor. If the power is too huge, it will certainly take in more power, accelerate the weariness, and reduce the service life of roller and also die.



The test and fixing should be carried out in power off condition. The machine ought to be positioned near the functioning location, so as to decrease the relocating time as much as feasible. Protect go to website from water logging, rain, electrical leakage, fire, and so on.



Only when we make use of the pellet machine properly and preserve it frequently can we take full advantages of the pellet machine and extend its functioning life.


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