
Cooling systems for conserving grains, seeds, oilseeds and perishable granulates
Conserfrío®
The most natural and cost effective way to preserve all kind of grains, seeds and perishable granular products.
Aplications
The cooling system is specially recommended for rice, maize, wheat, barley, soya beans, sunflower seeds, sorghum, cotton seeds, green coffee beans, lucerne pellets, feed pellets,...
The refrigeration can be used in silos and warehouses. In silos, the chiller air outlet is connected to the existing aeration inlet pipe. The use of the cooling system is usually immediate and no additional works are necessary. In warehouses, an on-floor or under-floor duct system has to be previously arranged. Our technical department will gladly offer you support.


Cooling a warehouse
How it works
The cold air produced by the CONSERFRIO® chiller unit us introduced at the bottom of the silo. This air begins to cool the bottom layer of grain. The air pushes the heat to pass upwards through the mass of grain and escapes as warm exhaust air. As the cooling process developes, a cooling zone is formed and slowly moving up through the grain. The cooling operation is completed as soon as the escaping air is cold. The same sequence occurs in case of flat storage plants. Grain is a band heat trasmitter, in other words, it is a good insulator material. The radiation of heat from the outside is of little influence, even if stored inside of steel silos or warehouses. For this reason, no insolation of walls is required.

Cooling in a silo
Benefits
Avoids typical problems of grain storing: heat development, insect activity, product fermentation, moulds, toxins, weight loss because of grain metabolism, water condensation. Grain chilling permits higher grain moisture contents, without risk. With the use of cooling procedure, expensive and dangerous chemical fumigations are avoided. The product is stored in best possible condition. Operating costs of grain chilling are cheaper than traditional ones. Typical pay-back for the CONSERFRIO® cooling units is achiveved in 1-2 years. Even shorter under the tropics.
| Seed grains | Bread grains | Fodder grains | ||||
| Moisture content% | Product Temp ºC |
Approx. storage period |
Product Temp ºC |
Approx. storage period |
Product Temp ºC |
Approx. storage period |
| 12-15 | 9-12 | unilimited | 9-12 | unilimited | 10-12 | unilimited |
| 15-16 | 8-10 | 12-18 months | 9-10 | unilimited | 9-10 | unilimited |
| 16-18 | 5-7 | 4-6 months | 8-10 | 5-10 months | 8-10 | 6-13 months |
| 18-20 | 5 | 2-3 months | 8-10 | 2-7 months | 8-10 | 3-9 months |
| 10-22 | 5 | 1 month | 6-8 | 1-4 months | 6-8 | 1-5 months |
Maximum storage period of product, depending on its temperature and mosture content
Models
We produce a wide range of units covering unitary daily capacities from 30 up to 700 metric tones). Many hundreds of units are installed all over the world.
F40. Chilling capacity from 30 up to 60 metric tones per day
F160TD. Chilling capacity from 100 up to 200 metric tones per day
F250TD. Chilling capacity from 250 up to 400 metric tones per day
F450TD. Chillng capacity from 450 up to 700 metric tones per day