Apparatus and methods for cryogenic treatment of materials

摘要

The invention includes a tunnel-conveyor section designed to process large-scale quantities of such materials as automobile tires for frangiation and embrittlement to low- or cryogenic-temperature levels for separation of fibrous and metal portions and subsequent granulation into fine-mesh particles. The system is also designed to subject food products to low- or cryogenic-temperature levels prior to for long-term storage and shipping as well. The system can also be used for freeze drying at very low temperatures (-380 DEG F. and lower) when nonconveyor procedures are used. The unit can be adapted as a horizontal-cylinder as well as a spiral or circular system for large-scale conveyor operations. Smaller systems can also be fabricated for laboratory or smaller-scale procedures.