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Method and apparatus for separating a suspension into a concentrate and a filtrate by means of cross-flow filtration

A technology of suspension and cross flow, which is applied in the field of separating suspension into concentrate and filtrate and equipment by means of cross flow filtration, which can solve the problems of increased filtration resistance, reduced filtrate flow rate, and temperature sensitivity of wearability.

Active Publication Date: 2021-06-08
BOKELA INGGES FUR MECHANISCHE VERFAHRENSTECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such membranes are limited in application due to chemical intolerance, easy abrasion and temperature sensitivity
Filter cakes growing in suspension, very fine particles or impurities (e.g. very large molecules) can gradually lead to an increase in filtration resistance and filter elements can become clogged, thereby reducing the flow through of the filtrate

Method used

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  • Method and apparatus for separating a suspension into a concentrate and a filtrate by means of cross-flow filtration
  • Method and apparatus for separating a suspension into a concentrate and a filtrate by means of cross-flow filtration

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Embodiment Construction

[0034] in figure 1 A filter device 10 according to the present invention has a corresponding line system 20 for the introduction of the filtrate. The filtering device 10 can be constructed in a modular manner, wherein each module in module 17 in sequentially set may have at least one suspension chamber 11 and the filter chamber 12. The suspension chamber 11 and the filter chamber 12 can be separated from each other by at least one filter element 16, such as a sieve. Along the common shaft 14, at least one stirring mechanism 13 can be provided in each module. The filter device 10 can be provided with any number of modules 17. In this case, module 17 can be configured to have a sub-axis, the sub-axis, can be combined into a shaft 14 of the filter device 10.

[0035] The suspension can be delivered to the suspension chamber of the filtration device 10 by the incubation line 15, the suspension chamber consisting of the suspension chamber 11 of each module 17. Introducing the flow line...

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Abstract

The present invention relates to a method and an apparatus for separating a suspension into a concentrate and a filtrate by means of cross-flow filtration. The suspension is introduced into a suspension chamber with a plurality of chamber-shaped modules arranged in series, in each of which an annular separating element with a separating surface is provided, in each module at least one stirring mechanism with radially arranged stirring elements In the suspension chamber, a movement is made above the separating surface at a small distance relative to the separating surface, so that in the gap between the stirring mechanism and the separating surface a directional flow is generated transversely to the separating surface. A pressure difference is set between the suspension chamber and the filtrate chamber for filtration, and the filtrate is led out through the filtrate line, and the filtrate passes through the separation element due to the pressure difference, and the suspension remaining in the suspension chamber is concentrated into a concentrate, which is discharged from the suspension chamber through the outlet elicited in. Using a sieve as the separation element, the average pore size of the sieve is larger than the average particle size of the solids in the suspension, on which the permeable target particle layer is filtered in a targeted manner, allowing it to be used for separating particles or producing a pure filtrate.

Description

Technical field [0001] The present invention relates to a method of separating a suspension into a concentrate and filtrate by means of lateral flow filtration in accordance with the present invention. [0002] In this method, the suspension is introduced into the suspension chamber having a plurality of chamber-shaped modules disposed in series, and at least one annular separation element having a separated surface is respectively provided, each In a module, at least one agitating mechanism having a stirring element having a radially set is moved above the separating surface in a suspension chamber to move relative to the separation surface, so that in the gap of the stirring mechanism and the separation surface, the separation surface is generated. Directional flow, in order to filter, the pressure difference is set between the suspension chamber and the filtrate chamber, the pressure difference being on one side of the separation element, and exits the filtrate via the filtrate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D36/00B01D37/02
CPCB01D36/00B01D37/02B01D29/055B01D29/668B01D29/86
Inventor E·埃拉菲尔德克劳斯·诺伊迈尔H-J·普利维策尔赖因哈德·博特
Owner BOKELA INGGES FUR MECHANISCHE VERFAHRENSTECHN
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