Patent ID: 9706793
Date: 2017-07-18
CPC Classifications: A23L,B08B,B65B

Claim:
1. A sterilization treatment line in which an upstream side tank in which product liquid is stored and a downstream side tank are connected to each other through a conduit through which the product liquid is transferred, the sterilization treatment line comprising: a high-temperature heat exchanger for sterilizing the product liquid at an intermediate portion of the conduit; plural heating stages that heat the product liquid in a stepwise manner at portions of the conduit between the upstream side tank and the high-temperature heat exchanger, the plural heating stages including a first stage heating unit adjacent to the upstream side tank and a second stage heating unit between the first stage heating unit and the high-temperature heat exchanger; plural cooling stages that cool the product liquid in a stepwise manner at portions of the conduit between the high-temperature heat exchanger and the downstream side tank, the plural cooling stages including a first stage cooling unit adjacent to the high-temperature heat exchanger and a second stage cooling unit between the first stage cooling unit and the downstream side tank; and a plurality of intermediate piping lines arranged in parallel with each other at portions between (a) the second stage heating unit that has a temperature range at which the product liquid is burnt and (b) the first stage cooling unit that has a temperature range at which the product liquid is burnt, wherein the temperature range at which the product liquid is burnt is 60° C. to 150° C., wherein the plurality of intermediate piping lines are configured to be switched with each other, and wherein a sterilization treatment, a cleaning treatment, and a positive pressure keeping treatment on the product liquid being transferred from the upstream side tank to the downstream side tank are performed by switching between the plurality of intermediate piping lines arranged in parallel with each other.