Scraper heat exchanger for viscous masses such as foodstuffs is cooled by Peltier elements permitting the use of water as the secondary coolant.

摘要

A scraper heat exchanger for the continuous heating or cooling of viscous masses comprises a shaft-driven rotating product cylinder (3) surrounded by a heat transfer medium (7) with a ring gap for the processed material between the cylinder and transfer medium in which Peltier elements (5) are arranged.