Nuclear power plant waste solidification treatment system and method

Abstract

The invention discloses a nuclear power plant waste solidification treatment system and a treatment method. According to prior arts, a weight metering method is adopted, system equipment complication is high, mounting difficulty is high, debugging, operation and maintenance are difficult, and a weighing unit has risks of weight deviation and measurement failure. With the system and method provided by the invention, the above technical problems are solved. The system comprises a waste collection unit (1), a waste volume metering unit (2), a waste delivery pipe (3), a valve assembly (4), a control unit (5) and a waste solidification unit (6). The control unit (5) acquires waste volume from the waste volume metering unit (2), and controls the open / close state of the valve of the valve assembly (4) based on the waste volume, such that the waste volume metering unit (2) acquires and temporarily stores a preset volume of nuclear plant waste for solidification during each waste solidification link. Therefore, waste precise metering and solidification under a measurement mode with no weighing unit is realized.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant low-radioactive waste treatment, in particular to a nuclear power plant waste solidification treatment system and method. Background technique [0002] The solid waste treatment system is mainly used to deal with low and medium radioactive solid waste generated during the operation and overhaul of nuclear power plants. Among them, the cement solidification and fixation technology was developed the earliest, and has a history of more than 50 years, and the existing nuclear power plants use the cement solidification process to treat low- and medium-level solid waste. [0003] At present, the cement curing system mostly adopts the mixing process in a bucket. The core is to complete the measurement according to the ratio of each material (including concentrate, waste resin and other wastes, cement, and other additives) in the cement curing formula, and to complete each measurement after th...

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Problems solved by technology

[0010] The present invention aims at the technical problems existing in the prior art, such as high complexity of equipment, high difficulty in installation, difficulty in commissioning, operation and maintenance, and risks of weight deviation and measurement failure in the weighing unit in the waste treatment system using weight measurement, and provides A nuclear power plant waste solidification treatment system and method have been developed, which realize the accurate measurement and solidification of waste in the measurement mode without weighing units

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