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A system and method for recovering radioactive waste resin

A technology of radioactive waste resin and waste resin, which is applied in radioactive purification, nuclear engineering, etc., can solve the problems such as the method of taking out the waste resin from the tank without considering it, achieve the effect of reliable retrieval and transportation, and reduce the exposure dose

Active Publication Date: 2022-02-11
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Old nuclear facilities have not considered the method of taking out the waste resin from the tank, or due to the age, the original design process has failed. As the volume of the tank is close to full, it is imminent to retrieve the waste resin in the tank

Method used

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  • A system and method for recovering radioactive waste resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, a radioactive waste resin retrieving system includes a retrieving device 2, a waste resin collection tank 3 and a control system;

[0045] The retrieval device 2 includes a stirring device 5 and a feeding pump, and the stirring device 5 is installed in the waste resin storage tank 1 through the top structure of the waste resin storage tank 1;

[0046] The waste resin collection tank 3 communicates with the waste resin storage tank 1 through a pipeline, and the feeding pump is installed on the pipeline between the waste resin storage tank 1 and the waste resin collection tank 3, and the waste resin collection tank 3 communicates with the waste resin storage tank 3 through the pipeline. The device 11 is connected;

[0047] The control system includes a controller and a plurality of liquid level sensors, liquid level sensors are installed in the waste resin storage tank 1 and the waste resin collection tank 3, and the liquid level sensor and the...

Embodiment 2

[0055] Such as figure 1 As shown, this embodiment is based on Embodiment 1, and the waste resin collection tank 3 is provided with an overflow port, and the overflow port communicates with the waste resin storage tank 1 through the overflow pipe 6; A filter 7 is arranged near the overflow port; an air compressor 8 is also included, and the air compressor 8 is connected to the overflow pipe 6 through a pipeline, and the connection position between the pipeline and the overflow pipe 6 is arranged at the rear end of the filter 7 ; The overflow port is set on the upper part of the waste resin collection tank 3 .

[0056] The retrieval method of the present embodiment comprises the following steps:

[0057] S1, connecting the retrieval system with the waste resin storage tank 1;

[0058] S2. Start the retrieving device 2 to stir the waste resin in the waste resin storage tank 1 to make the waste resin reach a suspension state;

[0059] S3, start the feeding pump of the retrieval...

Embodiment 3

[0065] Such as figure 1 As shown, this embodiment is based on Embodiment 1, and also includes a cleaning water tank 4, which is used to store desalinated water, and the cleaning water tank 4 is connected with the pipeline of the retrieval system; The brine storage tank 9 is communicated.

[0066] In this embodiment, the desalted water in the cleaning water tank 4 is used to clean the delivery pipeline to prevent the waste resin from clogging the delivery pipeline.

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Abstract

The invention discloses a radioactive waste resin retrieving system and method. The retrieving system includes a retrieving device, a waste resin collection tank and a control system; the retrieving device includes a stirring device and a feeding pump, and the stirring device Installed in the waste resin storage tank through the top structure of the waste resin storage tank; the waste resin storage tank communicates with the waste resin storage tank through pipelines, and the feeding pump is installed between the waste resin storage tank and the waste resin storage tank On the pipeline, the waste resin collection tank communicates with the processing equipment through the pipeline; the control system includes a controller and a plurality of liquid level sensors, liquid level sensors are installed in the waste resin storage tank and the waste resin collection tank, and the Both the liquid level sensor and the feeding pump are electrically connected to the controller. The retrieving system and method of the present invention can be used for retrieving waste resin storage in tanks, and are especially suitable for retrieving waste resin storage in tanks of old nuclear facilities.

Description

technical field [0001] The invention relates to the technical field of radioactive waste resin and waste liquid treatment in nuclear facilities, in particular to a radioactive waste resin recovery system and method. Background technique [0002] The application of nuclear energy will inevitably produce radioactive waste liquid. Due to the particularity of the industry, the radioactive waste liquid must be further processed, and the discharge standard has been met, so as to effectively protect the environment. For waste liquid with low radioactive pollution, ion exchange treatment is often used. After ion exchange, the resin is radioactive. Before the post-processing of the waste resin, it is stored in a tank for a certain period of time and after a certain amount, and then the corresponding centralized treatment is carried out. Old nuclear facilities have not considered the method of taking out the waste resin from the tank, or the original design process has failed due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F9/20G21F9/22
CPCG21F9/20G21F9/22
Inventor 李振臣余达万周辰昊张家衡孙宇刘懋袤白泽邱福茂张井田刘荣李文钰王小兵王亚光陈先林向德清
Owner NUCLEAR POWER INSTITUTE OF CHINA
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