Method for preheating the air circulating in an installation comprising an evaporator coupled to a drying unit
First Claim
1. In a method for concentrating a liquid product into a powdered product wherein said liquid product is treated in a multi-stage evaporator system to form a condensed concentrate product and a condensate and said condensed concentrate product is subsequently dried with hot air to produce a powdered product, the improvement which comprises heating the condensates of said multi-stage evaporator by means of a fluid issuing from said evaporator system to form a hot condensate and bringing said hot condensate issuing from said evaporator system into indirect heat exchange with air to form said hot air, said hot air being used to dry said condensed concentrate product.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for preheating the air circulating and used in an installation comprising a multi-stage evaporator adapted to concentrate a liquid product, in particular a food product such as a milk product, on the one hand, and a drying unit in which is processed and concentrate issuing from said evaporator, or any other concentrate, on the other hand, said method comprising the steps of heating condensates of said multi-stage evaporator by means of a fluid issuing from said evaporator and hotter than said condensates, then driving the thus-heated condensates into a heat-exchanger wherein they cause air to be preheated.
-
Citations
10 Claims
- 1. In a method for concentrating a liquid product into a powdered product wherein said liquid product is treated in a multi-stage evaporator system to form a condensed concentrate product and a condensate and said condensed concentrate product is subsequently dried with hot air to produce a powdered product, the improvement which comprises heating the condensates of said multi-stage evaporator by means of a fluid issuing from said evaporator system to form a hot condensate and bringing said hot condensate issuing from said evaporator system into indirect heat exchange with air to form said hot air, said hot air being used to dry said condensed concentrate product.
Specification