DEChemicals and auxiliary materials
Storage containers for chemicals and auxiliary materials
The production process and quality of the paper are supported through the systematic addition of chemicals and auxiliary materials. Typical substances used in stock preparation are hydrogen peroxide, sodium hydroxide, sodium silicate, fatty acids and soap as well as fillers and starch. Other chemical additives added prior to the headbox are special polymers, defoamers as well as fixing agents and retention agents. Some of the chemicals are aggressive, produce gases and have temperatures up to +95 °C. They are therefore stored in stainless steel or GRP containers.
Level measurement with VEGAPULS 63
The optimal solution for level measurement in this area is the radar sensor VEGAPULS 63. It remains uninfluenced by the process conditions and provides exact measuring results even with agitators in the vessel.
Overfill protection with VEGASWING 63
The vibrating level switch VEGASWING 63 together with the signal conditioning instrument VEGATOR 636 is used as overfill protection according to WHG (Water Resources Act). The yearly WHG check is carried out with a simple push of a button on the signal conditioning instrument.
Pressure monitoring with VEGABAR 53
The pressure transmitter VEGABAR 53 with metallic diaphragm monitors the pressure in the pipeline and protects the chemicals pump from running dry.
» VEGAPULS 63
» VEGASWING 63
» VEGABAR 53
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