Continuous volume reduction system for solid radioactive waste of underground nuclear power station and use method of continuous volume reduction system

Abstract

The invention discloses a continuous volume reduction system for solid radioactive waste of an underground nuclear power station, and relates to a nuclear power technology. The system comprises a first-stage sorting pipe, a secondary-stage sorting pipe first branch and a secondary-stage sorting pipe second branch; a first-stage radiation detector is arranged on the first-stage sorting pipe; a secondary-stage first-branch radiation detector is arranged on the secondary-stage sorting pipe first branch; a second-stage second branch radiation detector is arranged on the secondary-stage sorting pipe second branch; and the first-stage sorting pipe, the secondary-stage sorting pipe first branch, the secondary-stage sorting pipe second branch, a third-stage sorting pipe first branch, a third-stage sorting pipe second branch, a third-stage sorting pipe fourth branch and a third-stage sorting pipe fifth branch are mechanisms capable of continuously conveying solid objects. Solid radioactive waste is classified according to the radiation level, low-level radioactive waste capable of being discharged is screened out, and the purpose of volume reduction is achieved. The invention further relates to a using method of the underground nuclear power station solid radioactive waste continuous volume reduction system.

Description

technical field [0001] The invention relates to nuclear power technology, more specifically it is a continuous volume reduction system for solid radioactive waste in underground nuclear power plants. The invention also relates to the usage method of the solid radioactive waste continuous volume reduction system of the underground nuclear power plant. Background technique [0002] Underground nuclear power plants place nuclear-related plants underground, and use the protection and containment of underground rock mass to limit the release of potential radioactive substances to the environment, improve the safety of nuclear power plants, and provide new ideas for the safe development of nuclear power in my country. [0003] Nuclear reactors will produce a large amount of solid radioactive waste during normal operation and maintenance. These solid radioactive wastes must be stored and disposed of after treatment. In order to reduce the disposal space, reduce transportation and d...

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Problems solved by technology

[0004] However, after a serious accident in the reactor, a large amount of radioactive substances were released. Due to the influence of radioactive contamination, the surrounding land and other environments also produced radioactivity. At this time, when the radioactive contamination is decontaminated and cleaned up, it is necessary to treat the soil with radioactive contamination as solid waste. Treatment; For example, after a nuclear accident, in order to restore the environment, the Japanese government removed 10cm thick soil from the surface of the polluted area and packaged the polluted soil together. In this case, the existing technology has disadvantages such as small volume reduction effect, high cost, and inability to operate continuously; such as Chinese patent: solid radioactive waste volume reduction device (application number: 201120089932.X) uses electric heating, Water heating, microwave heating, etc. are used to remove water in solid radioactive waste to achieve the purpose of volume reduction, but this scheme only removes the water content, the volume reduction ratio is small, and it cannot be operated continuously, and the energy consumption is high

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