January 13, 2014

Premiere at BIOGAS 2014 – new small Biogrinder

Biogrinder for treating biomass used for the generation of biogas. Interior of the BHS Biogrinder.

The BHS Biogrinder is used to treat biomass for biogas generation. Interior of the BHS Biogrinder with large feed opening, rotor, guide blades, hammers, stator strips and wearing plates.

At BIOGAS 2014, from January 14-16, 2014 in Nuremberg, BHS-Sonthofen is presenting the second small BHS Biogrinder, of type RBG 06, for the first time. With a throughput of four to eight tonnes per hour, it is particularly suitable for small to medium-sized biogas plants and thus rounds out the lower end of the BHS-Sonthofen product spectrum.

With a power rating of just 37 to 45 kW, the new smaller Biogrinder is ideally suited to the requirements of small and medium-sized biogas plants, in particular in terms of energy consumption and investment costs. Its “big brother”, the RBG 08, was presented by BHS three years ago and processes about six to twelve tonnes per hour with a power rating of between 55 and 75 kW.

BHS Biogrinders crush the input material of biogas plants prior to fermentation to form a homogeneous and flocculent substrate, thereby considerably accelerating the gas production of the micro-organisms in the fermenter due to the large surface area of the individual particles. In this way, they greatly increase the methane yield and make biogas plants more efficient and reliable. This effect is particularly great in the case of highly fibrous biomass.

The plants have proven their worth many times over in routine operation and demonstrated that they prepare the biomass significantly better than the machines previously used. They significantly increase the overall cost-effectiveness of the biogas plant. Subsequent installation of the Biogrinder in an existing plant is also simple. All that is required is the additional installation of a feed container and the BHS Biogrinder itself. The investment generally pays for itself very quickly.

At the same time, mechanical crushing also allows for the selection of a much wider range of raw materials: raw materials that were previously difficult or impossible to decompose in the fermenter can now be processed simply after treatment in the Biogrinder. For example, green waste, manure or other organic waste can be used as inexpensive raw materials. Food waste can also be treated.

The machines only use impact and shear forces, thus ensuring low-wear operation. Furthermore, they also crush extraneous materials, such as soil clods and stones, without danger to the machine.

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