scraped-surface exchanger

scraped-surface exchanger

[′skrāpt ¦sər·fəs iks‚chān·jər]
(chemical engineering)
A liquid-liquid heat-exchange device that has a rotating element with spring-loaded scraper blades to wipe the process-fluid exchange surfaces clean of crystals or other foulants; used in paraffin-wax processing.
References in periodicals archive ?
The reason goes to the heart of the difference between scraped-surface exchangers and those without moving parts.