Patented FINSTERWALDER floor cleaning system – Reliable clearing of containers during operation

After processing, many organic wastes still contain substances that settle in the digester (e.g. stones, sand, bone fragments, pieces of glass, eggshells, etc.). In order for digesters to fulfill their function in the long term, these sediments must be removed regularly. The soil cleaning system is used to continuously remove sediment from the fermenter. The system consists of the patented mechanical soil scraper, the sediment discharge pump and the sediment separator. This system avoids the otherwise regularly required and costly cleaning out of the digester (= interruption of operation).

Functional principle of the floor scraper

Thanks to the patented geometry of the scraper arms, sediments are transported from the digester floor to a discharge opening that is embedded in the digester floor. From there, the sediment discharge pump extracts the sediment and conveys it to the sediment separator.

Technical data floor scraper

• Installation of the drive on the tank top (RM13, digester with reinforced concrete top) or on the tank bottom (RM10, steel tank)
• Retrofitting possible for containers without center column
• Driven by slow-running planetary or cycloidal gears
• Suitable for digesters without center column up to 17 m diameter and 20 m height
• Gas-tight shaft feed-through via water cup up to 20 mbar
• Suitable for operation in Ex zone 2
• Connected load: 0.55 kW, 50 Hz