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Decontamination method for radioactive nuclear waste metal

A radioactive nuclear waste and radioactive technology, which is applied in the field of decontamination of radioactive nuclear waste metals, can solve problems such as the inability to meet the minimization of radioactive waste, and achieve the effects of small wear, reduced radiation, and short circulation paths

Pending Publication Date: 2022-03-08
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method for decontaminating radioactive nuclear waste metal, which solves the problem that the current disposal scheme for nuclear waste metal cannot meet the requirements of "minimization of radioactive waste"

Method used

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  • Decontamination method for radioactive nuclear waste metal
  • Decontamination method for radioactive nuclear waste metal
  • Decontamination method for radioactive nuclear waste metal

Examples

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Embodiment 1

[0141] like Figure 1-12 As shown, the decontamination system for radioactive nuclear waste metal is used for the decontamination of radioactive nuclear waste metal, which includes shot peening decontamination device 1, metal cutting machine 2, metal shredder 3, metal compression baler 4 and metal smelting Feeding assembly.

[0142] The metal shredder 3, the metal compression baler 4 and the metal smelting and feeding assembly are sequentially used in the process of radioactive decontamination of nuclear waste metal. The shot peening decontamination device 1 and the metal cutting machine 2 are used consecutively in the nuclear waste metal decontamination process (continuous use does not limit the sequence of use, it can be cut by the metal cutting machine 2 first, and then decontaminated by the shot blasting decontamination device 1 Dirt, it can also be decontaminated by the shot blasting decontamination device first, and then cut by the metal cutting machine 2). And, the us...

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Abstract

According to the decontamination method for the radioactive nuclear waste metal, radioactive decontamination of the nuclear waste metal can be achieved on the basis of a radioactive decontamination system for the nuclear waste metal. A decontamination system for radioactive nuclear waste metal comprises a shot blasting decontamination device and a metal smelting feeding assembly. The shot blasting decontamination device comprises a spray gun, a sand and dust separator, a sand and dust collector, a steel ball cleaning machine, a steel ball repriatrion, a dry ice supply device, a high-pressure air source and a negative-pressure exhaust device. The nuclear waste metal radioactive decontamination method comprises the following steps: surface shot blasting; fragmentation processing is carried out; compressing and packaging; feeding in a cold furnace; and smelting metal. According to the method, through the two steps of shot blasting decontamination and smelting decontamination, the radiation dose in the nuclear waste metal is greatly reduced, the smelting liquid can be cast into different products according to actual application requirements subsequently, the nuclear waste metal is turned into wealth, recycling of the nuclear waste metal is achieved, and the requirement for minimizing radioactive waste is fully met.

Description

technical field [0001] The invention relates to the technical field of nuclear waste metal treatment, in particular to a decontamination method for radioactive nuclear waste metal. Background technique [0002] With the rapid development of the nuclear industry, nuclear waste metals produced by nuclear power plants and nuclear industrial enterprises are also showing a trend of increasing year by year. These nuclear waste metals are highly radioactive and have a half-life of thousands, tens of thousands or even hundreds of thousands of years. If they are not disposed of properly, they will seriously pollute the environment. [0003] At present, nuclear waste metal whose radiation dose exceeds the safety threshold cannot be treated, and can only be packaged in metal tanks for permanent deep burial disposal, so as to ensure that nuclear waste metal can be geologically sealed for tens of thousands or even hundreds of thousands of years without leakage. [0004] However, the exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F9/00
CPCG21F9/001
Inventor 雷洁珩李霖晖左喆文王永远钟林雷泽勇邓健雷林
Owner NANHUA UNIV
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