MODIFICATION TO THE EVAPORATOR STATION IN PREPARATION FOR A CO-GENERATION FACTORY AT BROADWATER MILL

摘要

Broadwater Sugar Mill commissioned a 4000 m~2 SRI-designed Roberts evaporator for the 2002 crush. The evaporator is the crucial first stage of a cogeneration plant, which will comprise a high-pressure boiler and turbo-alternator producing renewable electrical energy for sale. To achieve this, steam consumption by all process plant will need to be minimised and condensate quality for boiler feed water will need to be guaranteed. This paper describes the installation, control system and operating performance of the new SRI Roberts evaporator and the associated arrangement of vapour bleeding to pans and heaters used to optimise the steam efficiency in the 2002 season.