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Ground glass flange filter

A technology of filter and grinding mouth, which is applied in the direction of gravity filter, etc., can solve the problems that cannot be directly measured, and the shape of the sediment is irregular, and achieve the effect of convenient disassembly, uniform thickness and tight sealing

Inactive Publication Date: 2015-04-29
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
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AI Technical Summary

Problems solved by technology

Ordinary funnel pad filter paper filtration, although the precipitate is filtered onto the filter paper, but the irregular shape of the precipitate cannot be directly measured, and it also needs to be transferred and re-sampled

Method used

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  • Ground glass flange filter

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 Shown is a ground glass flange filter of the present invention, the ground glass flange filter includes a ground feed liquid flange 1 and a ground support flange 5, a ground feed liquid flange 1 and a ground support method The flange 5 is docked; between the grinding mouth liquid flange 1 and the grinding mouth support flange 5, there is a perforated organic glass disc 4; between the grinding mouth liquid flange 1 and the perforated organic glass disc 4 Round filter paper 2.

[0020] Thus, the present invention adopts butted ground glass flanges and a perforated plexiglass disc between the two flanges to ensure that the thickness of the precipitated sample after filtration is uniform, and the precipitated sample on the filter paper sheet can be directly filtered after filtration. It can measure ...

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Abstract

The invention relates to a ground glass flange filter, comprising a ground feed liquid flange (1) and a ground support flange (5), wherein the ground feed liquid flange (1) and the ground support flange (5) are in butt joint; an organic glass disk (4) with holes is arranged between the ground feed liquid flange (1) and the ground support flange (5); and a round filter paper sheet (2) is arranged between the ground feed liquid flange (1) and the organic glass disk (4) with the holes. By virtue of the ground glass flange filter, to-be-detected sediments can be directly filtered; sediment transferring and re-nesting are not required; and the ground glass flange filter is easy to operate and high in work efficiency.

Description

technical field [0001] The invention belongs to the field of sediment filtration, and in particular relates to a ground glass flange filter. Background technique [0002] In radiochemical analysis, it is often necessary to measure radioactivity in precipitates. The sediment is generally collected by filtration, and the sediment is usually filtered with a sand core funnel, or with an ordinary funnel pad filter paper. However, to measure radioactivity in sediment, it is necessary to spread the sediment into a regular shape (usually circular) with uniform thickness. [0003] After the sand core funnel is filtered, the sediment needs to be transferred, and then the sample is spread. The sediment in the middle process cannot be transferred completely, and the transfer yield needs to be considered. Ordinary funnel pad filter paper filtration, although the precipitate is filtered onto the filter paper, but the irregular shape of the precipitate cannot be directly measured, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/085
Inventor 潘竞舜李加兴文富平陈凌
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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