SCHWENZOW, UWE,ROLLE, ULRICH,ASSING, HUBERT,TACKE, LUDGER,SCHMIED, ANDREAS
申请号：
CA3030980
公开号：
CA3030980A1
申请日:
2017.06.14
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
The invention relates to a method for heating a concentrate (K) in a system for spray drying (100) according to the general terms of claim 1, and a system (100) for carrying out the method. The method and the system for carrying out same are to reduce the tendency toward denaturing of the concentrate and for deposits thereof with an economic increase in the quantity output of the dryer tower, and to thereby guarantee a microbiologically flawless end product. This is achieved with a method which is characterised by the series of, inter alia, the following steps (b) and (c): (b) high-pressure heating (H) of the concentrate (K) at the high-pressure level (p2) at an increased atomisation temperature (T3) in the region of 75 to 80°C, by means of a high-pressure heat exchanger (18), which is supplied with a heat carrier medium (W) on the secondary side and which is designed as a tube bundle heat exchanger with a plurality of inner tubes through which the concentrate (K) flows in parallel, said inner tubes being arranged in an annular shape and in a single circle and together forming an inner channel (c) providing defined shear stress (S) of the concentrate (K) during or directly after the treatment according to step (b) with means existing in an annular channel, which, when viewed in the flow direction, connects to the inner channel and has a defined extension length and a defined length-dependent course of the channel passage cross-section thereof.
