Flatbed Pressure Filtration System

Flat Bed Pressure Filtration System

The flatbed pressure filtration system is a type of pressure filter where a suspended solid such as a precipitate is separated from the liquid by straining it – under pressure – through a porous medium that can be penetrated easily by liquid.  The device is used for filtering grinding/ honing/ super finishing coolant from a group of machines where the contaminants are in powdery/ particulate form. The flatbed pressure filtration system is a highly evolved form of the paper band filtration system. It utilizes a lower footprint to achieve the same flow rate of filtered coolant output. It also considerably lowers filtration medium consumption.

The contaminated coolant from a group of machines is typically collected from each machine in underground coolant trenches, and flows by gravity to the flatbed pressure centralized filtration system. The contaminated coolant is fed through a filter medium under positive pressure. This is achieved by a transfer pump through the top shell of the system and this flow is controlled by an actuated valve. The contaminated coolant is discharged onto a diffuser, to endure its flow onto the filter medium. The contaminants in the coolant are blocked by the filter medium to form a contaminant cake. The clean coolant flows past the medium into the clean coolant chamber present below the filtration medium.

  • Advantages
  • Applications
Advantages
  • Lower footprint requirements
  • Reduce the filtration medium consumption per unit weight of dirt removed
  • Back washable nylon and SS mesh can be used to reduce consumables
  • Fully automated PLC
  • Filter media can be changed
  • Can use with pre-coat media for very fine filtration level
Applications
  • Steel grinding
  • Cast iron grinding
  • Honing

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