Low-medium level radioactive waste barrel surface dose rate detection device and application thereof

Abstract

The invention discloses low-medium level radioactive waste barrel surface dose rate detection equipment and an application thereof, and relates to the technical field of nuclear power station solid waste treatment. The equipment comprises a waste bin rotating assembly, a waste bin surface dose rate detection device and a waste bin surface activity measurement device; the waste bin surface dosage rate detection device comprises a lifting support assembly, a lifting power assembly and a mechanical arm assembly. The mechanical arm assembly comprises a limiting transmission sliding block, a mechanical arm upper arm, an electric telescopic rod, a mechanical arm lower arm, an upper and lower arm torsional elastic piece, a detector assembly and a detector position adjusting elastic part. A dose rate detection device is arranged on one side, far away from the mechanical arm lower arm, of the detector assembly; rollers are respectively arranged at two ends of one side, far away from the mechanical arm lower arm, of the detector assembly; the dose rate distribution, maximum dose rate detection and activity detection of different heights and distances of the waste bin are implemented by adopting one detector assembly, so the use is very convenient.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant solid waste treatment, in particular to a device for detecting the surface dose rate of a barrel of low- and medium-level radioactive waste and its application. Background technique [0002] With the vigorous development of the nuclear industry, more and more low- and medium-level radioactive waste will be produced, which will affect environmental safety, human health and the sustainable development of the nuclear industry. These low and medium level radioactive wastes will be compressed and solidified in 200L, 400L and other waste barrels. According to the requirements of national standards such as "Regulations on Temporary Storage of Low and Intermediate Level Radioactive Solid Waste" (GB 11928-89) and "Regulations on Disposal of Low and Intermediate Level Radioactive Solid Waste in Shallow Ground" (GB 9132-88), intermediate storage of these wastes is carried out , transportation, a...

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Problems solved by technology

[0005] However, there are still many problems. The device requires the waste bucket to be placed on the detection equipment, and only measures the surface dose, which cannot be directly connected with the existing activity measurement equipment. When used together, the two indicators must be measured through the transfer of the waste bin, which is very time-consuming and labor-intensive; the device uses multiple detectors to measure the surface dose on the side wall of the waste bin, which is costly and has a fixed height in the vertical direction, so it cannot obtain surface dose. The dose is distributed finely along the vertical direction, so the accuracy of the maximum dose detection is low; the rotary table of this device can only be used with a certain type of waste bin, and cannot be applied to 200L, 400L and other types of waste bins at the same time

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