Electric wood pellets machine manufacturer tell you identify the quality of wood pellets

Durability

The durability of wood pellets affects the packaging, transportation and storage performance of biofuel pellet. At present, there is no uniform standard for the test method and evaluation index of water penetration performance of biofuel wood pellets. Through the sampling tests, it is possible to determine whether the durability of wood pellets meets the requirements of packaging, transportation and storage performance.

This experiment refers to the methods commonly used by researchers at present, that is to say, the wood pellet sample is placed at T25mm under the surface of 27℃ water, continuously observe the shape of the formed wood pellets until the formed biofuel completely peeled off, the time that biofuel pellet keeps its entire shape in water is used as a technical index to evaluate the water resistance of molding wood pellets, each sample was recorded 5 times, get the average value.

Shatter resistance

Shatter resistance mainly reflects the ability of wood pellets to withstand crushing and tumbling during conveying, and the transportation requirements of wood pellets fuel in actual using conditions.

In the transportation or movement of wood pellets fuel, a certain weight will be lost due to the drop, residual weight percent of molded wood pellets after falling (that is to say, the the difference between total quantity and loss quantity divided by the total quantity) reflects the anti crush capability of wood pellets. The test of the crush resistance of molding wood pellets is carried out by referring to the determination method of the crushing strength of coal, a wood pellet rod with a length of 60 to 100mm is freely dropped from 2m to the hard floor, then these fuel rods whose length is bigger than 25mm in the last test drops again, three times in total, percentage that The quantity percentage of fuel rods with a length of more than 25mm after crushing in the total quantity represents the crushing strength of wood pellets fuel。

Anti deformability

Anti deformability mainly reflects the ability of wood pellets to withstand rupture under the condition of external pressure, determine the use and stacking requirements of wood pellets fuel. Wood pellets fuel should bear certain pressure when piling up, the magnitude of its affordability reflects the magnitude of the resistance to deformation of wood pellets. The maximum pressure of deformation and rupture of biomass briquette fuel under continuous loading is indicated. Each sample was recorded 5 times, and obtain the maximum value.

Water resistance, moisture resistance

Water resistance and moisture resistance reflect the water permeability of biomass briquette and the ability to absorb moisture in air, the percentage of weight gained reflects the magnitude of moisture resistance, determining the storage performance of wood pellets.

The test method is to place the molding wood pellets fuel in a confined environment with a relative humidity of 100%, observe its mass change. In the preparatory test, select the molding fuel with good relaxation density, it has good resistance to deformation and moisture absorption. When the molding wood pellets are piled up to about 2.5 meters height, the molding wood pellets at the bottom does not deform, and it is found that its ability to resist deformation is very strong in the mechanical testing machine. For moisture resistance, the preparation method is to place the molding wood pellets in a closed environment with a relative humidity of 100%, and observe the measurement once a day.

Wood pellets fuel has high calorific value, and its use cost is far lower than petroleum energy, it is a clean energy substitute for other oil fuel which is advocated by many countries, there is a vast market space.If you are interested in making wood pellets by yourself, we can provide you electric wood pellets machine according to your requirements. Please feel free to contact us at any time if you need.