APPARATUS FOR REFRIGERATING MATERIALS

摘要

APPARATUS FOR REFRIGERATING MATERIALS A refrigerating system for use in the continuous cryogenic treatment of materials has a rotatable drum that can receive and discharge such material. The drum has an interior configuration that advances the material longitudinally within the drum upon its rotation. The material is refrigerated while it is within the drum. The system includes a reciprocating feeder device for shaking material placed therein into the drum at a preselected controlled rate of introduction. This feeder device comprises an intake header juxtaposed to the material receiving end of the drum so that the drum is free to rotate with respect thereto. The intake header forms a chamber communicating with the interior of the drum and is divided into a plurality of chambers separated from one another by a partition having an opening therein with a chute passing through such opening. The opening has a door biased normally closed for automatically allowing material to pass through the partition and for automatically closing, once material has passed therethrough.