Situation
The 1.3MW AD plant in Nomansland, Exeter, has been operating since 2014, and uses a feedstock of approx. 3,000 tonnes of chicken litter and 6,500 tonnes of maize, silage and farmyard muck per year.
The plant uses a Vogelsang PreMix 4-in-1 system, and decided to add a second feed line with another PreMix and Konrad Pumpe BIG-Mix hopper. The plant operation team wanted to get a finer milling on their feedstock before it went into the digester to increase gas yield, so installed an additional RotaCut macerator in the feed line.
Result
Greg Palmer, Operations Director, UK Biogas, said: “The PreMix has been a fantastic feed system for us. It does everything we need to our feedstock to best prepare it for digestion, is simple to maintain, and parts are quickly available when we need them.
"I'd say we've seen an increase of 20% output from the installation of the new equipment, largely down to increased efficiency of feeding, less downtime and increased maceration."
Doug Yates, Area Sales Manager, Vogelsang, said: “The site at Nomansland really is a success story. Greg and the UKBiogas team are very open to trying new ways of working and approach the job in a collaborative manner. The fact that this is their second PreMix is testament to the machinery’s ability to ‘get on with it’ and provide an effective and reliable feed system in one complete unit.”
