Hauhinco has recently been contracted by a customer to engineer a descaling system for a new rolling mill for stainless steel panels. Hauhinco mastered the challenge through an indirect drive solution consisting of a redundant high pressure pump system and a high pressure accumulator system. As a drive station, two EHP-3K200 high pressure plunger pumps with a reduced input speed are used.
By these measures a continuous pump operation for the current conditions is reached on the one hand and on the other hand enough power reserves for future enhancements are given. The automatization solution is specifically designed for the system and includes a typical charging mode of the high pressure accumulator system in correlation with the storage level, however also allows a decrease and increase of the pressure level through parallel controls of the compressor and high pressure pump. With regards to valve technology, Hauhinco uses the metal seat technology which has been proven in water hydraulics for decades. The valves use a wear resistant sealing system consisting of a special PU-compound, which has less seal friction and thus less heat development.