Device and method for cooling solid particles

A system for use in a process of recovering material contained in used tires, wherein the system comprises:

• one or more compressing devices adapted to compress a cooling fluid;
• one or more expanders operative to receive the pressurized cooling fluid and expand it so that its temperature is lowered to a level required for operating a cooling arrangement of said system;
• a cooling arrangement adapted for use in a process of producing brittle particles, and comprising:
• a first chamber comprising at least one air ingress for receiving air conveyed externally to the first chamber, and at least one air egress for introducing air leaving the first chamber to a second chamber;
• a second chamber comprising at least one air ingress for receiving air egressing the first chamber, and at least one air egress for discharging air leaving the second chamber;
• a solid particles feed ingress means;
• an enclosure formed by a space confined between the first chamber and the second chamber, and is configured to enable solid particles being fed via the solid particles feed ingress means, to fall downwardly towards the bottom part of the cooling arrangement;
• a bottom part for receiving solid particles passing through said enclosure;
• and
• a solid particles egress means.