Digestate Dryer Manufacturer
See how we dry Digestate FibreIf you are comparing digestate dryers manufacturers or digestate drying plants manufacturers, STRONGA designs and builds both – FlowDrya digestate lines and complete drying plants, engineered to order at our Hertfordshire works. As a digestate fibre dryer manufacturer, we match every machine to your feedstock, moisture target and heat source.
- FlowDrya continuous flow drying range — in production since 2012
- Engineered and built to order in the United Kingdom
- Custom-configured to your material, throughput and heat source
FlowDrya digestate fibre dryers are manufactured by STRONGA LTD, built to order in the UK as part of the FlowDrya continuous flow drying range, in production since 2012.
Each FlowDrya digestate plant reduces wet separated digestate fibre from over 60% moisture down to below 20% for storage and land application, or lower for bedding and pelleting, using PulseWave™ agitation and a stainless-steel drying floor to handle corrosive AD by-products.
Why Digestate Fibre Needs Drying
Separated digestate fibre from anaerobic digestion (AD) plants typically leaves the separator at 60% moisture or more. Left wet, it degrades quickly through microbial activity and ammonia loss, is difficult to store, and can leach nitrogen and phosphorus into water courses. Drying digestate fibre down to below 20% moisture stabilises the fibre, improves friability and removes the leaching risk, turning a liability into a marketable bio-fertiliser, animal bedding or bio-fuel feedstock.
How a FlowDrya Digestate Fibre Plant Works
Wet digestate fibre is fed into the FlowDrya's high-capacity in-feed hopper and passed onto the hydraulic PulseWave™ drying bed, which tumbles and mixes the fibre as it moves along the drying deck so clumpy material dries evenly. Because AD digestate can be corrosive, FlowDrya digestate dryers are supplied with a stainless-steel package for long-term corrosion resistance. The dryer runs a 'stop-start' cycle – capable of up to 8,000 hours/year duty cycle, but typically 'live' for only around 2,000 hours/year – reducing wear, while the integrated DryStation™ HMI touchscreen gives the operator control over the drying process and consistent output moisture.
Target Moisture Content by Application
FlowDrya digestate fibre plants are configured to the target moisture content required by the end market: circa 18% moisture content for animal bedding, below 20% for loose bulk fertiliser, and 8–10% for bio-fuel and fertiliser pellets (up to 15% for briquettes). Drying from 60% to below 20% also upgrades the calorific value of digestate fibre from around 3 MJ/kg to around 15 MJ/kg, making it viable as a solid biofuel as well as a fertiliser replacement.
Digestate Fibre Drying Targets
| Application | Target Moisture Content |
|---|---|
| Animal bedding | 18% MC |
| Loose bulk fertiliser | <20% MC |
| Bio-fuel / fertiliser pellets | 8–10% MC |
| Briquettes | 15% MC |
Digestate Dryer Manufacturer FAQs
Who manufactures digestate dryers?
FlowDrya digestate fibre dryers are manufactured by STRONGA LTD (Companies House 03974884), engineered to order in the UK. The FlowDrya product line has been in production since 2012.
How does a FlowDrya digestate drying plant work?
Wet digestate fibre is loaded into a high-capacity hopper and dried on FlowDrya's hydraulic PulseWave™ moving floor, which tumbles the material for even drying. The DryStation™ HMI controls the process, and a stainless-steel package protects the dryer against corrosive digestate. The stop-start floor design means the dryer typically only runs around 2,000 hours a year despite an 8,000-hour/year duty-cycle capability.
What moisture content can FlowDrya reach when drying digestate fibre?
Wet separated digestate fibre entering the dryer is typically 60% moisture or higher. FlowDrya reduces this to below 20% for fertiliser and long-term storage, circa 18% for animal bedding, and 8–10% for pelleting (15% for briquettes).
Can FlowDrya dryers handle corrosive digestate fibre?
Yes. Wet digestate fibre can be highly corrosive, so FlowDrya digestate dryers are available with a stainless-steel package that provides long-term corrosion resistance and supports a long overall service life.
Why is drying digestate fibre necessary?
Drying digestate fibre reduces weight and volume for transport, concentrates organic nutrients for a higher fertiliser value, minimises odour and microbial activity during storage, and removes the risk of nitrogen and phosphorus leachates from wet fibre stored outside.
Do you install and commission digestate drying plants?
Yes. Every FlowDrya is fully assembled and factory-tested before being disassembled for shipping. On-site installation is typically completed within days, followed by a site commissioning process that includes operator training, start-up and shut-down procedures and a full 'hot test' before handover.
What is the FlowDrya digestate dryer's operating lifespan?
The FlowDrya range has an expected operational lifespan in excess of 30 years, owing to its simple, robust moving-floor design and low number of moving parts.