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Rotary pressure filter apparatus with reduced pressure fluctuations

A filter and rotary technology, which is applied in the direction of mobile filter element filter, membrane filter, filtration separation, etc., can solve the problem of pressure fluctuation of rotary pressure filter, and achieve the problem of pressure fluctuation, high capacity and long service life Effect

Active Publication Date: 2017-04-19
英力士美国化学公司 +1
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • Rotary pressure filter apparatus with reduced pressure fluctuations
  • Rotary pressure filter apparatus with reduced pressure fluctuations
  • Rotary pressure filter apparatus with reduced pressure fluctuations

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Embodiment Construction

[0021] As a general introduction, the present invention relates to rotary pressure filter apparatus for processing solid-liquid mixtures in a plurality of successive work zones. Rotary pressure filter devices are generally known in the art and are disclosed, for example, in US Patent Nos. 2,741,369, 7,807,060 and US Patent Application 20050051473.

[0022] In some embodiments, the rotary pressure filter apparatus is used to recover solid product or liquid, or both, from a solid / liquid mixture. In some embodiments, the solid product is a pharmaceutical or food ingredient product. In other embodiments, the solid product is a chemical, or especially a petrochemical. In some embodiments, the product is an aromatic hydrocarbon, such as p-xylene. In other embodiments, the product is an aromatic carboxylic acid, such as terephthalic acid.

[0023] now refer to figure 1 , shows a longitudinal section of a rotary pressure filter device, generally indicated at 100 , according to an ...

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Abstract

A rotary pressure filter apparatus, a sealing device for use with the rotary pressure filter apparatus, and a process of using the apparatus. The rotary pressure filter apparatus is designed to treat a solid-liquid mixture under pressure in successive work zones. A rotary drum moves compartments containing the solid-liquid mixture through the successive zones. The zones are separated by a sealing member. The sealing member is designed to reduce pressure fluctuations as the compartments enter a successive zone.

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...

Claims

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Application Information

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IPC IPC(8): B01D33/073B01D33/09B01D33/80
CPCB01D33/073B01D33/09B01D33/801B01D2201/347B01D33/067
Inventor 安德斯·比奇-拉森蒂莫西·凯斯托马斯·巴托斯
Owner 英力士美国化学公司
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