Silo Ventilation, Dryers and Pneumatic Conveying
Silo ventilation keeps stored grain cool, dry and healthy.
Silo ventilation protects the quality of your grain, while pneumatic conveying and dust extraction determine the safety and productivity of your installations. MECAVENT SA designs and supplies custom fans for flour mills, silos and agricultural cooperatives: grain aeration, dryers, pneumatic conveying and ATEX dust extraction.
Silo ventilation and grain aeration
Stored grain is a living product: if temperature and moisture rise, insects, moulds and heating spots develop quickly. Effective silo ventilation blows ambient air through the grain mass to cool it, even out temperatures and preserve its quality until it is sold or processed. MECAVENT sizes silo ventilation fans according to the type of grain, the height of the bulk, the silo diameter and the airflow rate required per cubic metre.
For flour mills, malt houses and agricultural cooperatives, we supply aeration fans for flat stores and silos, high-pressure fans for grain dryers, and fans for pneumatic conveying of grain, flour and by-products. Silencers and acoustic enclosures can be added where silos are close to housing.
Dust extraction and explosion protection
Handling grain and flour generates fine dust, which can lead to a dust explosion if it is not controlled. Alongside silo ventilation, we design dust extraction systems with filters, welded ductwork and ATEX fans for elevators, conveyors, intake pits and loading points.
Retrofits and replacements
We replace existing silo ventilation fans, including those from other manufacturers, and upgrade older installations with more efficient fans and variable frequency drives to reduce energy consumption during long aeration periods.
Grain Aeration and Cooling
Proper silo ventilation lowers stock temperature, limits insect and mold development, and preserves grain quality until dispatch. Our aeration fans are dimensioned according to grain type, grain height and the specific airflow required per tonne stored.
Fans for Grain Dryers
Dryers require high flow rates in a hot, dusty environment. We supply robust fans with variable frequency drive control to adjust flow to grain moisture and reduce energy consumption.
Pneumatic Conveying of Grain and Flour
For pneumatic conveying, we dimension high-pressure fans suited to the product, flow rate and network length, taking abrasion into account. For connections in contact with flour, our food-grade flexible connectors comply with EC Regulation 1935/2004.
ATEX Dust Extraction
Grain and flour dust is explosive. At receiving, handling and cleaning stations, we supply dust extractors (bag filters, cartridge filters, cyclones) and fans suited to the ATEX zoning defined by the operator.
Silo Ventilation: Frequently Asked Questions
What information is needed to dimension silo ventilation?
The grain type, silo capacity and height, desired aeration flow rate, climatic conditions and, where applicable, the ATEX classification of the zone.
Are aeration fans noisy?
Aeration often runs at night, when the air is cooler, which can disturb the neighborhood. We offer acoustic enclosures and silencers to meet noise requirements.
Can you replace an existing fan?
Yes. We design replacement fans based on the performance and footprint of the existing unit, regardless of its original brand.
Why Entrust Your Silo Ventilation to MECAVENT?
With over 25 years’ experience in industrial air handling and acoustics, MECAVENT SA designs its fans to measure and carries out testing in its workshops. We also supply control systems (variable speed drives, automation, sensors), dust extractors, flexible connectors and acoustic treatment, and our technicians handle on-site installation and commissioning.
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