Method for fixing sieve plates of pulse sieve plate column

The technology of pulse sieve plate and fixing method is applied in the field of pulse sieve plate column sieve plate fixing, which can solve the problems of many equipment failures, affecting the mass transfer effect, large vibration, etc., and achieves convenient installation and disassembly, reduced labor intensity, and strong reliability. Effect

Active Publication Date: 2017-05-24
THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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Problems solved by technology

This tower is characterized by large flux and high efficiency, but it has large vibration and many equipment failures, which is not conducive to its continuous and stable operation.
[0005] At present, at home and abroad, the sieve plate fixing method of large pulse sieve plate columns is mainly fixed by the central rod, but as the sieve plate increases, it is easy to deform in the radial direction, which affects its mass transfer effect. At the same time, the traditional welding technology is not conducive to Installation and maintenance of large equipment

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  • Method for fixing sieve plates of pulse sieve plate column

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Embodiment Construction

[0034] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as figure 1 and figure 2 As shown, the present invention 1. A method for fixing the sieve plate of the pulse sieve plate column is applied in the extraction and purification process in the uranium purification production. The outlet of the bottom water phase flows out, and the organic phase enters from the inlet of the organic phase at the bottom of the column. Relying on the buoyancy and pulse force, it enters the top of the column through the sieve plate hole and flows out from the outlet of the organic phase; in the process of two-phase countercurrent, they are fully contacted to achieve qualitative separation. exchange to complete the uranium stripping operation;

[0036] It is characterized in that: comprising the following steps:

[0037] (1) Determine the main components

[0038] The main comp...

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Abstract

The invention belongs to the technical field of extraction and purification processing equipment in the field of uranium purification and production, and particularly relates to a method for fixing sieve plates of a pulse sieve plate column. According to the method for fixing the sieve plates of the pulse sieve plate columns, transverse fixing of the sieve plates is achieved through a central rod, pull rods and the like so that a gap between a column body and a plate string can be reduced, and mass transfer is sufficiently achieved. Radial fixing of the sieve plates is achieved through the pull rods and pull rod pipe spacers so that it can be guaranteed that the sieve plates are not prone to deformation, and mixed mass transfer is stable. Longitudinal fixing of the sieve plates is achieved through central pipe spacers, so that it is guaranteed that the distances between the sieve plates are equal, and mixed mass transfer is stable.

Description

technical field [0001] The invention belongs to the technical field of extraction and purification process equipment in the field of uranium purification production, and in particular relates to a method for fixing a sieve plate of a pulse sieve plate column. Background technique [0002] At present, the extraction equipment used in the nuclear field mainly includes three types: mixing and settling tank, centrifugal extractor and pulse extraction column. Due to the large floor area of ​​the mixing and settling tank, it is not easy to remove dirt and other defects; the centrifugal extractor has the disadvantages of difficult maintenance and complex equipment structure, etc. These two kinds of extraction equipment are gradually replaced by pulse extraction columns. [0003] Pulse extraction columns mainly exist in two forms: sieve plate and baffle plate. The pulsed sieve tray column was invented by Van Dijk in 1935. The pulse sieve plate tower is a cylindrical tower with a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B60/02
CPCC22B60/0265
Inventor 王健王凯李振峰黄建张凯李慧霞薛彦成郁鄯德丁峰马晓文
Owner THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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