Method and system for treating low-medium radioactive level filter core of filter in nuclear power station

Abstract

The invention discloses a method and system for treating a low-medium radioactive level filter core of a filter in a nuclear power station, and solves a technical problem in the prior art that a waste package is large in size after the filter core is treated and the treatment cost is high. The method for treating the filter core comprises following steps: S1, transferring a replaced filter core of the filter to a temporary storage room for temporary storage and drainage; S2, putting the drained filter core of the filter into a temporary storage steel barrel, and transferring the temporary storage steel barrel to a waste treatment factory through a shield transferring container; S3, compressing the temporary storage steel barrel into a barrel cake through a super compressor; S4, measuring the height of the barrel cake and the radioactive dosage, and loading a shield packing container with the barrel cake according to the measured values in an optimization manner; S5, grouting, fixing and capping the shield packing container; S6, maintaining the shield packing container and performing radioactivity detection on the shield packing container; and S7, conveying the shield packing container to a temporary storage house for temporary storage. According to the invention, the filter core can be efficiently reduced in volume, the size of the waste package is decreased, and the waste treatment cost is reduced.

Description

technical field [0001] The invention relates to the technical field of processing low and intermediate radioactive wastes of nuclear power plants, in particular to a method and system for processing low and intermediate level radioactive filter elements of nuclear power plants. Background technique [0002] The primary circuit coolant purification system and radioactive waste liquid treatment system of a nuclear power plant need to replace the filter elements of the filter regularly during operation. Because the filter element intercepts radioactive substances such as corrosion products in the primary circuit coolant and suspended particles in the waste liquid, most of the elements have high radioactivity and belong to intermediate level waste. Such waste requires effective treatment and conditioning to meet waste handling and disposal reception requirements. [0003] At present, there are the following methods for the treatment of low and intermediate level radioactive fil...

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Problems solved by technology

[0007] The present invention aims at the technical problems existing in the prior art that nuclear power plant filter element treatment cannot efficiently reduce the volume of the filter element, the volume of the waste package is large, and the waste treatment cost is high, and provides a nuclear power plant low and intermediate level radioactive filter element treatment The method and system realize the reliable treatment of the filter element, which can not only effectively pack the filter element, so that the waste package meets the waste packaging requirements, but also efficiently reduce the volume of the filter element, reduce the volume of the waste package, and reduce the cost of waste disposal

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