Rotary pressure filter device with reduced pressure fluctuations

Abstract

A rotary pressure filter device, a seal for use with the rotary pressure filter device and a method of using the same. This rotary pressure filter unit is designed to process solid-liquid mixtures under pressure in multiple successive work zones. Rotating the drum moves the compartment containing the solid-liquid mixture through the plurality of successive zones. These zones are separated by sealing means designed to reduce pressure surges when the compartments enter the continuum.

Description

[0001] cross reference [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 62 / 029,065, filed July 25, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The present teachings relate generally to rotary pressure filter apparatus and, more particularly, to a rotary pressure filter apparatus having a sealing member configured to reduce pressure surges. Background technique [0004] In many processes in the chemical, food and pharmaceutical industries, various separation techniques are used to separate one material from another. Common techniques used to separate solid materials from liquids include vacuum or pressure filtration, drying, centrifugation, settling and purification. When a very pure solid product is desired, the separation may be performed in multiple stages and may be combined with washing steps. For example, solids recovered by one of the above techniques can be washed or r...

AI Technical Summary

Problems solved by technology

[0008] The present invention solves the problem of pressure fluctuations in rotary pressure filters by allowing a more gradual opening of the filter compartment as the compartment enters a new zone in the device

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