The first Molinari mill for biomasses has now been installed
The first Molinari mill designed to pre-treat biomasses for anaerobic digestion came into operation on January 31st 2013. Construction of this machine began a year ago following a request from Mr. Zangrandi, the owner of a 1 MW biogas plant. His first need was to reduce the size of the various products used to feed the plant. Thus increase the surface that could be attacked by bacteria.
Once the material had been examined (corn silage, triticale, straw, beetroot, organic waste…) the Molinari technical office decided to design a machine that was as close as possible to a home appliance everyone knew well: an industrial size blender. At the end of July 2012, a prototype was installed and several tests were carried out to identify the best cutting system and most suitable construction materials.
From the very first, the prototype proved its milling advantages:
- the long triticale threads no longer blocked the fine shredders;
- the biomass is more homogeneous and can be pumped more easily;
- the floating layers dissolved and mixer operating times were reduced;
- the product quantity introduced every day was reduced from 60 to 50 tons, with obvious savings on biomass purchases.
Laboratory tests carried out by Milan University and by an independent laboratory in Modena have shown an accelerated biodegradable process and an increase of up to 25% in methane gas produced. Tynos is the decisive factor if you want to increase a biogas plant's productivity. Model T15 produces 22 ton/h of silage with 80 kW/h average absorption.
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