CA2299082A1

CA2299082A1 - Operating procedure for a pasteurizing facility

Info

Publication number: CA2299082A1
Application number: CA002299082A
Authority: CA
Inventors: Gisbert Strohn; Ulrich Wiedemann; Bernd Molitor; Falk Dittrich
Original assignee: KHS Maschinen und Anlagenbau AG
Current assignee: KHS Maschinen und Anlagenbau AG
Priority date: 1999-02-24
Filing date: 2000-02-22
Publication date: 2000-08-24
Anticipated expiration: 2020-02-22
Also published as: BR0000944B1; ZA200000743B; PT1038451E; DK1038451T3; DE50013140D1; DE19908035B4; US6374575B1; EP1038451A2; DE19908035A1; BR0000944A; EP1038451A3; CA2299082C; ATE332648T1; EP1038451B1

Abstract

A method and an apparatus therefor for the pasteurization of products in containers in a continuous container flow by stationary, sequential sections for heating, pasteurizing, and cooling by means of overflowing liquid, whereby the sections are graduated with respect to one another in terms of their liquid temperature, and for purposes of efficient heat exchange are organized in pairs, so that the liquid is transported by overflow from a heating zone to a cooling zone and the liquid overflowing from this cooling zone is transported to the heating zone, and to set the desired temperature of the overflowing liquid, warmer or cooler liquid is added to the liquid being transported, characterized by the fact that the excess liquid in the heating section added by the temperature regulation process to the zones in the method overflows in a cascade fashion from zone to zone of increasing overflow temperature, and in the cooling section overflows in cascade fashion from zone to zone of decreasing overflow temperature, and from the hottest zone in the heating section overflows into a warm liquid reservoir, and from the coldest zone in the cooling section into a cold liquid reservoir, and the excess fluid added by the regulation process to the pasteurizing section overflows from the zones into a hot liquid reservoir.

Claims

1. A method for the pasteurization of products in containers in a continuous container flow (1) by stationary, sequential sections for heating (2), pasteurizing (3) and cooling (4) by means of overflowing; liquid, whereby the sections are graduated with respect to one another in terms of their liquid temperature, and for purposes of efficient heat exchange are organized in pairs, so that the liquid is transported by overflow from a heating zone to a cooling zone and the liquid overflowing from this cooling zone is transported to the heating zone, and to set the desired temperature of the overflowing liquid, warmer or cooler liquid is added to the liquid being transported, characterized by the fact that the excess liquid in the heating section (2) added by the temperature regulation process to the zones in the method overflows in a cascade fashion from zone to zone of increasing overflow temperature, and in the cooling section (4) overflows in cascade fashion from zone to zone of decreasing overflow temperature, and from the last zone, i.e the hottest zone (7) in the heating section overflows into a warm liquid reservoir (13), and from the coldest zone (10) in the cooling section into a cold liquid reservoir (14), and the excess fluid added by the regulation process to the pasteurizing section overflows from the zones into a hot liquid reservoir (15).

2. The method according to Claim 1, characterized by the fact that the liquid contained in the cold fluid reservoir (14) is used in a controlled fashion for cooling at least of the zones in the cooling section (4) and in the pasteurizing section (3), the fluid contained in the warm liquid reservoir (13) is used in a controlled fashion for the heating of at least the zones in the heating section (2) or for cooling of the zones in the pasteurizing section (3), and the liquid contained in the hot liquid reservoir (15), after the addition of thermal energy, can be used in a controlled fashion to heat at least the cones in the pasteurizing section (3).

3. The method according to Claim 2, characterized by the fact that the cold liquid reservoir (14) can overflow into the warm liquid reservoir (13).

4. The method according to Claim 3, characterized by the fact that the hot liquid reservoir (15) can overflow into the warm liquid reservoir (13).

5. The method according to Claim 4, characterized by the fact that the warm liquid reservoir (13) and the hot liquid reservoir (15) are divided in the direction of flow.

6. The method according to Claim 5, characterized by the fact that associated with the warm and hot liquid reservoirs (13, 15) are respective additional containers (16, 17) for the overflowing liquid.

7. An apparatus for performing the method according to Claim 1, with a conveyor and a plurality of successive handling sections in a pasteurizing tunnel, characterized by the fact that the water of the heating zones (4-7) is conducted at least in part to the respective downstream zones of higher temperature, and no later than upstream of the superheating zone (8) is diverted into a first tank (13) of higher temperature, and the water of at least the superheating zone (8) and/or of the pasteurizing zone (9) can be fed to a second tank (15) of higher temperature, and this second tank (15) corresponds to an additional third tank (16) which is realized in the form of a hot water tank with a heating device, and there is a fourth tank (14) which is fed the water from the cooling zone (12), whereby this water can also be forcibly transported to the heating zone (5), and the water of the third tank (16) can be fed at least to the superheating and/or pasteurizing zone (8, 9).