Apparatus for intense/rapid cooling and for removing a substance in suspension in a gaseous fluid and method thereof

An apparatus for intense/rapid cooling and for removing a substance in suspension in a gaseous fluid, said apparatus comprising:

• i) conveying means for conveying the gaseous fluid;
• ii) a system for alternatively condensing/freezing or defrosting the substance present in the gaseous fluid comprising:
• a first group of cooling or defrosting stages arranged in succession along a section of the conveying means;
• a second group of cooling or defrosting stages arranged in succession along the conveying means;
• means for collecting the substance;
• the conveying means comprising a first and a second line operatively arranged in parallel;
• the first group of cooling or defrosting stages being located along the first line;
• the second group of cooling or defrosting stages being located along the second line;
• iii) a heat exchanger for pre-cooling the gaseous fluid upstream of the first group or second group;
• iv) the conveying means comprising means for transporting to the heat exchanger the gaseous fluid that is present downstream of the first group or second group to remove heat from the gaseous fluid that is present upstream of the first group or second group and passes through the heat exchanger;
• v) directing means for directing the fluid alternatively towards the first or towards the second line, vi) a first fan and a second fan located along the conveying means;
• the first fan being situated upstream of said first and second groups the second fan being located downstream of said first and second groups and the volumetric flow rate of the gaseous fluid generated by the first fan being greater than the air flow rate generated by the second fan.