Self-Cleaning Clarifiers

Self-Cleaning Clarifiers for Liquid/Solid Separation

SPX FLOW Seital Separation offers a wide range of self-cleaning clarifiers for liquid/solid separation. The clarifier allows the recovery of fine particles (0.5–500 µm) and/or strong clarification of liquids by means of a very high peripheral centrifugal field (G-force).

Real-World Application: Brewfist Craft Brewery

Discover how SPX FLOW Seital Separation Technology Clarifier helped Brewfist, a craft brewing company in Italy, expand capacity while maintaining quality.

Seital in Action – Beer Clarifiers for Craft Breweries

Learn more by downloading the case study: PDF

Theory of Operation

Clarification

The product to be clarified flows into the bowl through a feed pipe(1)and into the distributor(2) it then undergoes acceleration until it reaches the rotating speed of the bowl. The distributor(2)conveys the product to the disks stack(3)where the clarification takes place. The clarified liquid then rises in the disks stack and reaches the upper chamber of the bowl. Here a fixed centripetal pump(4) conveys it under pressure to the outlet pipeline(6). A hydraulic sealing device (5)prevents product oxidation due to ambient air.

Solids discharge

The separated solids are collected in the peripheral part of the bowl(7)and are periodically discharged through the discharge holes(8). The discharged solids are collected into an outer annular chamber connected to a damping sludge tank where they are drained away by gravity through a pipe.

The pressure produced by water in chamber (10) keeps the hydraulically operated ram (9) in a closed position. By feeding water through the pipeline (12), the bowl valve (11) allows the water in the chamber (10) to flow away; the product pressure pushes down the hydraulic ram and the solids are immediately ejected through the discharge holes (8). By stopping the water feed (12) and filling the closing water line (13) into chamber opening (10), the hydraulic ram goes back to the closed position.