Storage Vessels for Different Substances
Production and quality of the paper are supported by systematic addition of chemicals and additives. Typical substances used in stock preparation are hydrogen peroxide, caustic soda, sodium silicate, fatty acid and soap. Further chemical additives mixed in upstream of the headbox are refining polymers, defoaming agents as well as fixatives and retention agents. Storage is carried out in different containers of high-grade steel or GFK up to 40 ft (12 m) high.
Level Measurement with the VEGAPULS 63
Some of these agents are very corrosive, emit gases and have temperatures, such as in soap processing, up to 203°F (95°C). That's why the optimal solution for level measurement here is the VEGAPULS 63 radar sensor. The instrument remains unaffected by the process conditions and delivers exact measuring results even when agitators are running.
Overfill Protection with the VEGASWING 63
To provide overfill protection according to WHG (Water Resources Act), the VEGASWING 63 vibrating level switch is implemented in conjunction with the signal conditioning instrument VEGATOR 636 Ex.
Pressure Monitoring with the VEGABAR 53
The VEGABAR 53 pressure transmitter with metal diaphragm is deployed to provide optimal dry run protection for the chemical pumps.