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Device and method for measuring filter cake thickness

A technology of filter cake and filter cartridge, which is applied in the direction of measuring devices, chemical instruments and methods, separation methods, etc., can solve problems such as roughness and non-coverage, and achieve the effect of reducing costs

Active Publication Date: 2020-11-20
BHS SONTHOFEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this measurement method only gives a rough indication of cake thickness
There are various confounding variables that affect filter cake thickness but are not captured by this indirect method of measurement

Method used

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  • Device and method for measuring filter cake thickness

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Experimental program
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Effect test

Embodiment Construction

[0027] Part of the rotary filter press 10 is in figure 1 shown in . In this part of the rotary filter press 10 a sensor 12 emitting a laser beam 14 can be seen. A laser beam 14 extends from the sensor 12 through a viewing window 16 provided in the connecting piece 18 . The connection 18 is arranged at the opening 20 of the housing 22 of the rotary filter press 10 such that it forms an airtight seal with the housing 22 and accommodates the viewing window 16 in a hermetically sealed manner relative to the exterior of the housing 22 . The window 16 thus divides the laser beam 14 into a section 24 arranged outside the treatment chamber of the rotary filter press and a section 26 arranged inside the treatment chamber. Thus, in figure 1 As can be clearly seen in the figure, the sensor 12 is arranged outside the treatment chamber of the rotary filter press.

[0028] The laser beam 14 then illuminates the surface of the filter cake 28 from which the laser beam is reflected. Filte...

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PUM

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Abstract

A rotary pressure filter (10), comprising a filter drum (30) and a housing (22), characterized in that a sensor (12) is attached to the housing (22), which sensor emits light (14) through a light-permeable section (16) of the housing (22) in the direction of a filter cake (28) and receives light (14a) reflected from the filter cake (28) through the light-permeable section (16) of the housing (22),wherein a processing unit compares properties of the emitted light (14) with those of the received light (14a) and determines an absolute thickness of the filter cake (28) and / or a change in the thickness of the filter cake (28) over a pre-determined time. The invention further relates to a corresponding method.

Description

technical field [0001] The present invention relates to a rotary filter press comprising a filter cartridge for filtering material to be filtered, wherein a filter cake is formed on the surface of the filter cartridge; and a housing which surrounds the filter cartridge and which is rotatably mounted on in. Background technique [0002] Applicant has been selling filter presses for many years. In this type of rotary filter press, a suspension, which is a mixture of liquid and solids, is applied to a rotary filter cartridge. The cartridge is designed so that the liquid in suspension passes through the cartridge walls, while the solids in suspension remain on the surface of the cartridge. As a result, a solid layer, known in the industry as a "filter cake," forms on the surface of the filter cartridge. [0003] Depending on the type of rotary filter press, for example the filter cake can be removed after one revolution of the filter cartridge in order to introduce a new susp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/067B01D33/073B01D33/09B01D33/80
CPCB01D33/067B01D33/073B01D33/09B01D33/804B01D33/06B01D35/143B01D35/308B01D37/04B01D2201/309G01B11/0691
Inventor 马丁·舍费尔德特勒夫·施泰德尔沃尔夫冈·聚斯
Owner BHS SONTHOFEN