An alternative evaporator technology for first and second effects

Developments such as steam for by-products, co-generation, continuous pans that operate well on V2 and higher imbibition rates have required large first- and second-effect evaporators in many factories. Traditional Robert evaporators are not well suited to this because of sugar losses due to their long juice residence times, large space requirements and costly supporting structures. An innovative evaporator design has solved these problems. This paper covers the theory of sucrose destruction at high temperatures and describes a new type of long-tube climbing-film evaporator (LTE) that minimises these losses and offers other benefits. Performance details for some LTE installations are given.