In the pulp and paper production process, chemical pulping, deinking chemical preparation, wet-end chemical preparation and coating preparation storage also require liquid level and pressure measurement. Most of these media are corrosive media or viscous liquids. Flat flange pressure transmitters should be used for liquid level and pressure measurement. Corrosion resistant materials such as stainless steel should be used for diaphragm materials.
For example, the liquid level measurement of the chemical pulp steaming ball, because the measured medium is black liquid, because of its high viscosity, it is easy to form a knot after cooling, which is easy to cause the transmitter to malfunction and cannot operate normally, so the isolation liquid must be isolated and periodically Replace the spacer and flush the pressure tube. The pressure guiding tube must be flushed or blown with compressed air before installation and use. During the use, the sewage should be drained regularly to discharge the sediment in the pipeline to avoid blockage, ensure the smooth flow of the pressure guiding tube, and the transmitter can operate normally.