The impact of wood pellet mill raw materials on output and how to choose a pellet mill?

As more and more people know about the sawdust pellet machine, any user hopes that the pellet machine he buys has good quality. Before purchasing the equipment, you must know a lot about the equipment, and you cannot blindly follow the trend of investment. First of all, it is necessary to understand the influence of its raw materials on the output, as well as the parameters of the pellet machine.

Influence of Wood Pellet Mill raw material on output:

1. Grease

Adding a small amount of grease (0.5%~1%) is beneficial to reduce the wear of wood pellet mill parts, and make the pellets easily pass through the die holes, increasing the pelletizing output value. However, when the increase amount exceeds 2%, the particles will be scattered and difficult to form. Therefore, when adding high doses of grease, it is advisable to add 30% of the full amount at the mixer, and spray 70% of the full amount at the granulator.

2. Crude fiber

Appropriate crude fiber content (3%~5%) is conducive to the bonding of wood pellets, reducing the pulverization rate of particles and increasing the output value of granulation, but when the crude fiber content exceeds 10%, it will be due to poor adhesion. It affects the hardness and forming rate of pellets, increases mechanical wear, and reduces pelletizing output value.

3. Material moisture

If the moisture content of the material is too high, the increase of steam will be reduced during granulation, which will affect the progress of the granulation temperature and the quality of the granules. The moisture of the material is too high, and it is difficult to temper and easily cause the material to slip between the inner wall of the ring die and the pressing roller, causing the hole of the ring die to be blocked. Usually, it is required that the moisture of the material should be below 13% before conditioning.

4. Protein

When the protein content of the material is high, the plasticity of the material after heating is large, the viscosity increases, and the granulation output value is high, but when the non-protein nitrogen (such as urea, etc.) is high, the granulation output value decreases.

5. Starch

Cereals have high starch content, are easy to granulate under high temperature and high moisture, and have high output value. At this moment, the moisture content for conditioning is required to be between 16% and 18%. The tempering temperature should be above 80 °C, otherwise the starch gelatinization level is poor, resulting in brittle granules, and even cannot be formed. If the grains have been matured before tempering (such as drying corn), the granulation output value will decrease. Therefore, purchasing raw materials It is better not to choose drying.

What parameters should you pay attention to when buying a pellet machine?

1. First of all, you need to pay attention to the power of the host of the device. The power of the host not only affects its working speed, but also determines how much energy it consumes.

2. In the purchase process of the pellet machine, it is also necessary to pay attention to its output. If the power of the equipment is high, but the output is not high, it is naturally not cost-effective, because it cannot achieve sufficient output under a certain energy consumption. The pellet machines sold on the market can generally reach 1 ton per hour, but some have very small output.

3. After understanding the parameters on the main machine of the sawdust pellet machine, it is also necessary to pay attention to some of its auxiliary machine parameters. For example, what kind of quantitative conveyance does the auxiliary machine have, and what kind of adjustable power does it have at the same time, etc. If it is only the main engine with high power and output, but the auxiliary machine is relatively flat, it will naturally be difficult to achieve a good working speed. .

4. Pay more attention to the working mode of the equipment, because for this kind of equipment, it has its own working mode, the most commonly used is the ring mode, and some are other modes. In the production mode, granules are produced at one time, and some need to be crushed first, then dried, and then granulated. These are also in the parameters.

The above are the parameters that need to be paid attention to when purchasing a sawdust granulator. I hope that after reading these suggestions, you can choose a better quality granulator equipment when purchasing to enhance work efficiency.