Notes

How to utilize and also maintain timber pellet machine effectively?<br>
Grinding before making use of

Many roller and also level dies in pellet machine are processed by high-heat treatment. After planing, exploration, milling, and quenching procedure, there are typically lots of cloths inside the die openings, which might affect the pelletizing impacts and also production. For that reason, before starting a brand-new pellet machine, or after changing a new die, you need to grind it thoroughly.



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



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



Pretreatment of basic materials

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



The adhesive pressure determines the forming price of the pellets The majority of biomass products consist of lignin, which would certainly melt under high temperature as well as function as binder. However some materials like rice husk has low glue force. It need to be blended with sawdust or binders to make pellets



The thickness and also length of the timber pellets.

The density of wood pellets is identified by the hole dimension of the die. The length is figured out by the slicer. In level 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 adjusted to attain different dimensions. For your very own usage, it is far better to be brief. For transportation and also selling, it advise to be a little long.



After the wood pellets appear from the pellet machine, they are hot with some vapors. They can be dried and also cooled in an open field, or by a counter-flow colder. Quick cooling can boost the solidity of the timber pellets, and also facilitate storage space and also transportation.



Do not close down the machine right after making pellets.

When you finished making pellets, don't shut the pellet machine down at the same time. Include some mixed oil and also biomass materials to the pellet machine and also let it run for 1-2 min. By doing this, we can load the die openings with oil mixture, to ensure that we can directly begin making pellets the next time. With this procedure, we can not only keep the mold, but additionally conserve time. When pellet filament extruder quits, loosen the adjusting screw and remove the left products.



The upkeep of roller, die, shafts as well as transmission

You need to get rid of all hard objects and metal blocks in basic materials before feeding them right into the pellet machine, or they would create damages to the roller, die or primary shaft. You can set up a tubular magnet on the feed receptacle.



The warm inside the pelletizing chamber can rise to 80 ℃, and also the roller sustains high pressure throughout operation. As there is no dirt guard in the pellet machine, so you require to tidy up the bearing every 2-5 hours, as well as oil it with oil. After wood stove pellet making machine working hours, the primary shaft requirement to be fueled oil. The transmission requirement cleansing every half a year. If there is irregular high heat in the gearbox, you can use far better gear oil and also raise the clearance between the gears for upkeep. The attaching screw in the transmission component likewise need to be changed on a regular basis.



Exactly how to change roller as well as die?



When the rollers breaks, you can change the roller covering or the whole collection of roller. If the bearing get loose or secured, you need to change the bearing and also even the shaft.



In ring die pellet machine, just loosen the hoop chuck, take the old ring die apart as well as change it with a new one. If the ring die is repaired with screws, you require to drink the ring die carefully, as well as remove the screw with even strength.



In flat die pellet machine, the level die is set up with keeping nuts in the keyway. On the 2 sides of the level die, there are two symmetrical screw openings. You can utilize the screw driver to push them out, or make use of a magnet to draw them out. During your pressing or drawing, keep the flat die vibrating with a hammer, to ensure that the screw will not embeded the screw hole.



Security of the drive engine

Pick the matched power according to the needed manufacturing. If the power is insufficient, the manufacturing will certainly be low as well as the pelletizing effect is poor. If the power is as well huge, it will eat more power, increase the weariness, and also shorten the life span of roller and also die.



The test and also fixing ought to be executed in power off problem. The machine ought to be put near the working location, so regarding reduce the relocating time as high as feasible. Protect it from water logging, rain, electrical leak, fire, etc.



Just when we utilize the pellet machine correctly and also maintain it regularly can we maximize the pellet machine as well as prolong its working life.


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