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Publication No: EP4626577 [Europe] Application No: EP2023897073
Title: A filtration unit assembly and a filtration system
Publication Date: 08-10-2025 File Date: 29-11-2023
Inventor(s): Palghadmal, Anil Vamanrao
IPC Classification: B01D003600
Abstract:
A filtration unit assembly (100) to separate solid and liquid mixtures is disclosed. A mixture of a solid and a liquid enters the top dish (110) through one or more inlets provided on the top dish. The received mixture for filtration then passes through a rotating drum (140) that is housed within a shell (150). The mixture of the solid and liquid enters the rotating drum and is exposed to a screw action by the rotary motion of the rotating drum (140). The resulting screw action separates the solid and the liquid as the liquid gets sucked towards the axis while the solids are pushed away from the axis of rotation of the rotating drum. The rotating drum (140) may be provided with perforations to aid in separation. A system for filtration that includes a filtration unit assembly (100) is also disclosed.
Startup Options: The proposed system 
  • eliminates the requirement of stopping to collect solids and liquid. 
  • enables continuous separation of solids and liquids at different ports provided within the filtration assembly. 
  • brings out novel continuous filtration using screw for fully automatic operation
  • Can replace filter media depending on the size of particles present in liquid.
CSIR-National Chemical Laboratory
CSIR-National Chemical Laboratory[CSIR-NCL]
:  director[at]ncl[dot]res[dot]in
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Industrial Applications Instrumentation, Appliances, Devices Applications [Instrumentation, Appliances, Devices]