Biogrinder (RBG)

The BHS Biogrinder is designed to process biomass used for the generation of biogas. The energy crops are subjected to intensive mechanical pretreatment in the machine, with the effect that the gas yield is substantially increased and the overall fermentation process is stabilized. The Biogrinder, for which a patent application has been filed, works in continuous mode, is of rugged design, easy to operate and easy to maintain. The result is a homogeneous and highly defibered substrate with a large particle surface area. As a consequence, the gas production of the microorganisms is significantly accelerated and the methane yield is increased.

The input material is fed from above into the central duct of the Biogrinder. Installed inside the machine is a high-speed rotor with vertical shaft. The rotor is of star-shaped configuration with sturdy, flexibly mounted crushing tools. The material is accelerated outward by centrifugal forces and subjected to intense stress in the gap between the tools and the stationary anvil ring by impact, punching and shear forces. The final product is discharged through amply-sized apertures at the bottom of the unit.

The crushing ratio and the intensity of stress on the material can be adjusted via the rotor speed and the number of tools installed. The machine can be equipped with a drive power of 55 kW or 75 kW. Depending on the drive power and the input material, the Biogrinder achieves a throughput rate of approximately 10 t to 15 t per hour.