Grinder / Shredder for biogas plants
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By de-fibering, crushing and grinding with Tietjen’s BMS, a higher gas yield is achieved, and difficult substrates can be made usable in the digester.
These raw materials are typically grinded and crushed in the Biomass Shredder BMS:
- Solid manure from chickens, cattle, horses, turkeys or pigs.
- Corn and grass silage
- Grass clippings and straw
- Sugar beets
- Crops and agricultural waste
- other biomass
The biomass shredder BMS in operation
The biomass, such as solid manure, straw or silage, is fed into the machine from above, pre-shredded by a ripping comb above the rotor and then enters the impact zone. Shredding then takes place by means of a rapidly rotating rotor and impact bars made of wear-resistant material. The beaters mounted on the rotor provide a blunt de-fibering action, resulting in a homogeneous and well-digested substrate that is ideally prepared for anaerobic digestion.
A shredder for the smooth operation of your biogas plant
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High machine availability and a long service life increase the economic efficiency of the Biomass Shredder BMS:
- Smooth running of the machine due to ripping combs for distribution of the material
- Impact parts and beaters made of wear-resistant materials such as Hardox and carbide
- Monitoring of unbalance, contaminant ingress and vibrations with the aid of a vibration sensor
- Energy savings due to fewer floating layers and lower agitation power in the fermenter
- Insensitive to impurities, as no sharp tools are used.
- Clog-free operation due to discharge in the bottom of the impact chamber
- Bearing temperature control
- Less build up due to stainless steel plates
Maintenance-friendly shredder for biogas plants
During the development of the Biomass Shredder BMS, special emphasis was placed on ease of maintenance. Both time, cost and ergonomics of maintenance were taken into account:
- Minimal wear costs due to replaceable shredding tools on the beater.
- Easy to change wear plates due to external screw connection
- Large maintenance door ensures maximum accessibility
- Adaptable to on-site conditions: Maintenance opening can be varied in 90° steps
- Maintenance platform at the maintenance door
- Easy removal of heavy parts by crossbeam with chain hoist (option)
The biomass shredder BMS offers you maximum flexibility when feeding substrate to the fermenter. Once the substrate has been shredded, it can be fed either by screw conveyor or “liquid feeding” via a pump system – depending on the requirements of your biogas plant.
The pump solution enables transportation over long distances, can supply several digesters simultaneously and allows liquids to be mixed in before the digester.
The BMS – for an efficient and flexible substrate transport to your digester!
Technical Data
Machine types| BMS 1200 | BMS 1500 | BMS 1500-L | |
|---|---|---|---|
| Throughput capacity (t/h) | up to 10 t/h | > 15 t/h | > 15 t/h |
| Rotor speed (rpm) | 1000 – 1200 rpm | 750 – 900 rpm | 750 – 900 rpm |
| Number of beaters (pieces) | 4 | 6 | 6 |
| Dimensions and Weight | |||
| Diameter housing (mm) | 1200 mm | 1500 mm | 1500 mm |
| Height housing (mm) | 1290 mm | 1210 mm | 1510 mm |
| Length x width x height (mm) | 2535 x 1546 x 2440 mm | 2700 x 1730 x 2360 mm | 2700 x 1730 x 2660 mm |
| Weight incl. motor (approx. kg) | 3.600 kg | 4.800 kg | 4.900 kg |
| Drive | |||
| Three-phase motor (kW) | 55/75/90 kW | 110/132 kW | 110/132 kW |
