Mechanical arm separation module

Abstract

The invention belongs to the field of nuclear fuel after-treatment technology and particularly relates to a mechanical arm separation module for an automatic separation device of nuclear samples. Themechanical arm separation module comprises a reagent storage groove bracket, a separation column bracket, a waste liquid treatment assembly, a slide rail, a mechanical arm platform, a sample bottle bracket and a lifting plate. The mechanical arm separation module is provided with five moving shafts, including three shafts for helping a sampling probe to complete movements in X-axis, Y-axis and Z-axis directions, the lifting plate for enabling the sample bottle bracket to move in the Z-axis direction, and the slide rail for enabling the separation column bracket to move in the X-axis direction,and complicated separation processes can be completed by perfect cooperation of the five shafts, so that the used space of the inside of a glove box is reduced, repair and maintenance are facilitated, the flowing time of reagents and samples is shortened, the liquid sampling accuracy is improved, the separation time is shortened, the efficiency is improved, and the function of performing sample loading separation twice after dilution is performed on eluent once is realized.

Description

technical field [0001] The application belongs to the field of nuclear fuel reprocessing technology, and in particular relates to a mechanical arm separation module. Background technique [0002] At present, a large part of the analysis methods for neptunium, uranium, and plutonium in my country's post-processing analysis laboratories require pre-sample pretreatment, that is, to separate and extract the analysis objects to reduce the interference of other elements in the sample before the sample can be processed. Enter the instrument measurement and then get the analysis data. For example, during the process operation of the post-processing pilot plant, the separation task of the neptunium post in the analytical laboratory is heavy, and the separation time of each sample is long, and the speed of separation pretreatment cannot keep up with the speed of sample collection, resulting in very heavy accumulation of samples in the post. Seriously, the current manual separation ope...

AI Technical Summary

Problems solved by technology

For example, during the process operation of the post-processing pilot plant, the separation task of the neptunium post in the analysis laboratory is heavy, and the separation time of each sample is long, and the speed of separation and pretreatment cannot keep up with the speed of sample collection, resulting in the accumulation of samples at the post. Seriously, the current manual separation operation mode can no longer meet the existing requirements

For future 200-ton or even larger post-processing plants, the analysis tasks will be more arduous. If the analysis tasks are to be completed, a large number of analysis staff and analysis positions will inevitably be added. This is undoubtedly the development of future analysis laboratories. is unfavorable

[0003] With the development of science and technology, automated sample pretreatment equipment has entered more and more fields. The automated sample pretreatment equipment currently on the market is mostly applicable to samples from industries such as the environment, agricultural products, and biomedicine. Compared with the samples of the industrial spent fuel reprocessing process, the reprocessing process samples have their particularity: (1) The sample matrix is ​​nitric acid, which is volatile and highly corrosive, and the instruments and equipment on the market basically do not have corrosion resistance. It will be corroded and damaged in a short period of time, resulting in a short life of the instrument;

[0004] (2) The sample is radioactive, and the separation operation needs to be carried out in a closed glove box

The space inside the glove is limited, which not only makes it inconvenient to arrange the equipment, but also makes it difficult to maintain the equipment in the later stage;

[0005] (3) The sample separation process is unique. Since the separation methods for separating neptunium and plutonium in the post-processing process are all specially developed, the separation process requires equipment with the function of diluting the primary eluent and then carrying the second sample for separation. There is no separate device that fully supports this feature

[0006] (4) Equipment using XYZ robotic arm mode does not have the separation function of extraction chromatography column

[0007] (5) The equipment adopts an integrated design, the reagent bottles are far away, the reagents flow in the transmission pipeline for a long time, the separation efficiency and the accuracy of liquid extraction are poor

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