Grain Chiller

Air Conditioner for Silos Model F450TD

Model F450TD can provide cooling capacity of 260 – 500 ton per day. Suitable for large grain storage.

Overview

CONSERFRIO® grain chilling units for the safest and cost-effective storage of bulk grain, seeds and perishable granular products as wheat, barley, paddy rice, milled rice, maize, soybeans, sunflower seeds, cotton seeds, alfalfa pellets and cubes, feed pellets, etc.

The CONSERFRIO® system, which is based on the refrigeration of the grain in hygrometric equilibrium with it, minimize the mentioned problems and stands for the cleanest, safest and most natural and ecologic method for conserving grains, seeds and most kinds of perishable granulated products.

Features

  • The equipment is assembled and tested in our facilities. CE certificate
  • Tropicalized, specially designed to operate under extreme climatic environments.
  • Fully automatic, they control the temperature of the cooled air and its relative humidity.
  • Control via touch screen HMI and intuitive menu.
  • Motors provided for speed regulation: energy saving and smooth and silent operation.
  • Provided with metallic protective body
  • Great experience since 1969 and for us as CGRAIN, we has been providing technical services for Grain Chiller for over 10 years.
  • Company certified ISO 9001: 2015 by TÜV Rheinland

Why use this system?

The grain, even after harvested, still keeps on breathing. This breathing is a combustion chemical process where the grain converts its own mass into carbon dioxide and water, which in turn heats up and re-wets the grain, accelerating the product self-destruction. This non-reversible process of respiration increases at higher temperatures and moistures of the grain. By the proper use of refrigeration, the mentioned grain damaging process is minimized and kept under control. The grain once chilled, keeps its low temperature for a long time, without the need for a continuous cooling. Direct consequences of non-controlled storing of wet grain are the appearing of fungi and toxins, which are a very dangerous for the health of humans and animals. The proper storing of grain by means of chilled and dry air fix completely or widely minimize the problem.

At ambient temperatures of 15º C and higher, the insects develop, infesting and devastating the stored product. As well as the weight loss also, the insect activity increases with temperature rise, up to a maximum level around 35º C, depending on varieties. Under 15º C, the insects do not develop so it is not necessary to perform any dangerous, expensive, poisonous chemical treatment.

In the case of seed storing, the preservation of their germinating potential is the most important goal. An adequate preservation of seeds, at low temperature and moisture levels results indispensable. Oilseeds and grains with high fat content, particularly benefit from adequate preservation by means of refrigeration. On the contrary, the heat rotten the oils, thus damaging the product in a non-reversible way.

Less fissured or cracked grains, better quality grain, and many other benefits have been demonstrated along many years of experience in the grain refrigeration technique by means of the CONSERFRIO® units.

TECHNICAL SPECIFICATIONS

Grain refrigerating capacity

Maximum capacity650 tons/day
Minimum capacity375 tons/day
Average capacity450 tons/day

Chilled airflow characteristic curve

1000 Pa24,500 m³/h
2000 Pa22,000 m³/h
3000 Pa19,000 m³/h
4000 Pa15,000 m³/h
5000 Pa8,000 m³/h

Nominal refrigerating capacity of the compressor (R407c)

50 Hz60 Hz
0ºC / +30ºC evaporation / condensation temperatures166.5 kW196.5 kW
0ºC / +40ºC143.0 kW168.5 kW
0ºC / +50ºC121.0 kW142.5 kW

Power input

50 Hz60 Hz
Electric power input of compressor at nominal conditions37.2 kW44.6 kW
Chiller input load at nominal conditions to=0 ºC y tc=40 ºC63.0 kW76.0 kW
Maximum input load91.9 kW118.3 kW
Electric plug CEE (the unit includes its own 90A plug)125 A125 A

Chilled air connection Ø

700 mm

Main dimensions

Length4,855 mm
Width2,340 mm
Height3,617 mm
Weight3,870 kg.

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