A kind of rapid removal equipment and method for radioactive contamination on the surface of hard medium

Abstract

The invention relates to a hard medium surface radioactive contamination rapid cleaning device and a cleaning method, and belongs to the field of radioactive contamination controlling and cleaning. Avacuum dust removing device and multiple groups of water mist dust removing devices are arranged on a device case body, the dust absorbing port of the vacuum dust removing device is connected with a vacuum pump A after the vacuum dust removing device is connected with a filter net through a dust absorbing pipeline A, multiple dust shielding chambers of the high-pressure water mist dust removing devices are connected with the device case body through mechanical arms, high-pressure water pipes in the dust shielding chambers are connected with a water tank through high-pressure pumps, a dust removing pipeline B is connected with a circulation filtering device, the circulation filtering device is connected with a liquid waste deep filtering device, a solid waste storage chamber and a vacuum pump B, and the liquid waste deep filtering device is communicated with the water tank through a filtering liquid back flowing pipe. By means of the device, contamination cleaning can be rapidly completed through operation for one time, the sewage cleaning rate is high, the waste amount is low, secondary pollution does not generated, and the difficult problems of rapid and efficient cleaning of hardmedium surface radioactive contamination can be better solved.

Description

Technical field [0001] The invention relates to the field of radioactive contamination control and removal, in particular to a device and a method for quickly removing radioactive contamination on a hard medium surface. Background technique [0002] It is well known that with the increasing improvement of nuclear energy application technology, the development and utilization of nuclear energy has become more extensive, bringing huge economic and social benefits to mankind. In the processing and application links of nuclear fuel extraction, transportation, processing, storage, and nuclear waste disposal, radioactive contamination occurs to varying degrees; nuclear power plant accidents, nuclear terrorist attacks, quasi-nuclear strikes, etc. will produce a large amount of radioactive contamination. At present, the main methods for removing radioactive contamination on the surface of hard media include: vacuum dust removal, high-pressure water washing, and peelable film decontaminat...

AI Technical Summary

Problems solved by technology

At present, the methods for removing radioactive contamination on the surface of hard media mainly include: vacuum dust removal, high-pressure water washing, decontamination of peelable film, etc. Among them, vacuum dust removal is difficult to achieve sufficient negative pressure in the field of engineering applications, the removal rate is low, and the effect is limited; Although high-pressure water washing can wash away the radioactive contamination on the surface of the medium, it will generate a large amount of waste liquid and form secondary pollution; when the decontamination of the peelable membrane is carried out, the drying time of the membrane body is affected by environmental factors such as wind, rain, and snow. Larger, difficult to implement in a controlled manner, and it takes a long time to dry and peel off the film body; none of the existing cleaning methods can better meet the needs of the removal of radioactive contamination on the surface of hard media. Disposal method for removal

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