 Background

The brewery has ten Cellars. Each cellar is
divided into different tanks, in which the
fermentation takes pl...
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Kgalagadi breweries fermentation plant

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Kgalagadi Breweries Fermentation Plant

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Kgalagadi breweries fermentation plant

  1. 1.  Background The brewery has ten Cellars. Each cellar is divided into different tanks, in which the fermentation takes place. Glycine is passed through tubes wound round the tanks to control the temperature during the brewing process. A solenoid valve is used to open and close flow of glycine. Pt100 at the top and bottom of each tank are used to monitor the temperature. The temperature is either monitored using the Top/ Bottom PT100 or both PT100s. should any of the PT100 fail the PLC will switch the control completely to the healthy one. Each of the tanks can be in one of the following modes: Ready, Filling, Fermentation, Chill or Cleaning in Progress (CIP)  AGE’s Scope of work to be done – The plant is divided into three Control systems, i.e. Cellar 1&2, Cellar 3-8 and Cellar 9&10. A SCADA (Supervisory Control And Data Acquisition) system will provide a graphical overview of the whole control system. An Ethernet TCP/IP network will link the three Systems and the SCADA.  Significant Features of the project –     HMI will provide the operator with status of each Cellar and Tank SCADA system will provide a graphical overview of the plant, with the status of each tank. A graph of all temperatures and operator inputted information will be available. The fermentation manager will be able to change the operating mode of a tank, and with a login password he can also change the temperature set points.      A historical log will also be kept of all tank batches that have been brewed Keeping data for each batch is important for quality purposes. The Mode of operation of each tank will be colour coded - determined by its background Colour in the overview page. A Siren and alarm lamp will be installed at each control system to warn the operator of an alarm condition Products used –  Modicon TSX Premium from Schneider Electric  PLC software - PL7 Pro for TSX Premium PLC  HMI - is an EZTOUCH, Modbus/TCP 8” Slim panel  SCADA System - Intouch version 9, with 1000 tag licence  Spider, 5 port 10/100 Ethernet switches for each Control system  Duration of the project – 6 months  Total Value – R 605,906.34

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