The wood pellet machine is a production machine that uses eucalyptus, pine, birch, poplar, fruit wood, crop straw and bamboo chips to process it into biomass fuel.With the development of society, wood  pellet machines are widely used in the industrial and agricultural fields.When some companies press wood  pellet machines, they often encounter the pressed pellets very loose, or the pellet machine has short discharge and crushing materials, and even worse, there are situations where the crushed pellets cannot be pressed into pellets.So what is the reason for the short discharge and crushing of this pellet machine?

1. If it is a new equipment, it must be run-in and produced after wet or oil.Take some raw materials and mix them with about 10% industrial engine oil, crush the small pieces of the material, mix them, put them into the wood  pellet machine to grind the pressure pellets, and then put the pressed pellets into the wood  pellet machine from the beginning, repeat 5-6 times, and then perform normal granulation.

2. Check the mold compression ratio.The compression ratio of the ring mold is too large, the resistance of the powder through the mold hole is large, the pellets are pressed too hard, and the output value is also low; the compression ratio of the ring mold is too small, and the pellets are not pressed out, so the ring mold compression ratio must be carefully selected, and then check the smoothness of the inner hole of the ring mold and whether the ring mold is deformed. The inferior ring mold mold has a large discharge resistance due to the rough hole of the ring mold and the deformation of the ring mold, and the pellets are not smooth, and the output value is even lower. It is recommended that these companies choose ring molds produced by Shandong TONY.

3. If you find that the powder suddenly increases during normal production, perhaps because the pellet machine mold has reached its expected life, and the mold needs to be replaced in time.After using the ring mold for a period of time, it is necessary to check whether the cone holes in the inner wall of the ring mold are worn and whether the pressure rollers are worn. If the wear is severe, the ring mold can be processed and repaired, which will be removed from the counters of the wear cone holes. The wear of the pressure rollers must be replaced. The wear of the cone holes of the ring mold has a great impact on the output value.

4. The gap between the ring mold and the press roller.Generally speaking, it is appropriate that the gap between the ring mold and the press roller is between 0.1 and 0.3 mm.Under normal circumstances, it is better to use a slightly larger gap when the new press roller and the new ring mold are generally matched. A smaller gap should be used when the old press roller and the old ring mold are generally matched. A slightly larger gap should be used when the ring mold with large pores are suitable for ring molds. A slightly smaller gap should be used when the materials that are easy to granulate should be used when the materials that are difficult to granulate should be used when the materials are difficult to granulate.For operators, they need to have practical operation experience and be able to skillfully select and adjust the ring mold gaps.

5. Pay attention to the conditioning time and quality of raw materials, especially the moisture content of the material before entering the machine. The moisture content of the raw materials is generally about 13% before conditioning. If the moisture of the raw materials is large, it will slip in the mold and not be easily discharged, or the pellets will not form, which shows that there is a lot of powder. It is believed that the drying material can solve the problem by reaching the moisture requirements of the granulation.If the moisture content of the raw materials is small, the produced pellets will be formed relatively short and will affect the output value. It is recommended that the appropriate amount of added water reach the required humidity.

6. Check the distribution of raw materials in the ring mold. Do not let the raw materials go one side. If similar conditions occur, the orientation of the large and small feed scraper must be adjusted to allow the raw materials to be evenly distributed in the ring mold. This can not only extend the service life of the ring mold, but also smoother material discharge.

7. Check the roll shell in the equipment granulation chamber to see if the roll shell is broken or the roll bearing is broken, and replace it in time.

The above is the reason why the wood  pellet machine is short-cut. As an operator, you must always pay attention to and debug every link in the engineering operation to make the wood  pellet machine work more efficiently and with high output value!