TWI480888B - Apparatus of removing contamination and automatically detecting radiation for concrete - Google Patents

Description

Concrete decontamination and automatic radiation detection device

The invention relates to a concrete decontamination and automatic radiation detection device, in particular to a radiation detection device before the scraping can be performed by using the radiation detection device, and then the concrete surface scraping is performed by the concrete decontamination and scraping device for surface contamination. At the same time, the scraped concrete scraps collected by the scraping mechanism are collected by the suction mechanism, and the discharge limit of the contaminated concrete scrap is confirmed, so that the surface detection of the surface of the pre-scraping radiation detection and surface contamination can be completed at one time. After scraping off the radiation detection and other three tasks, and to achieve the effect of reducing the amount of contaminated concrete waste, reducing the cost of treatment, reducing the amount of decontamination after detection operations, reducing the exposure of personnel and complying with the principle of reasonable radiation protection.

According to the fact that many nuclear power plants in the world have been decommissioned or are being decommissioned. According to the current domestic planning, the nuclear, second and third plants will also be decommissioned in the Republic of China in 107 years, due to the large number of surfaces in the decommissioning. Contaminated concrete waste is produced, and if all concrete waste is disposed of as radioactive waste, the cost will be very high.

At present, the foreign practice is to scrape off the surface-contaminated concrete, and other uncontaminated concrete or concrete with very low radiation pollution (less than the external release limit specified by the regulations) can be externally released after the detection. The amount of contaminated concrete disposed is reduced, which in turn reduces the disposal cost of radioactive waste.

And when performing surface scraping concrete surface scraping operations, although the radiation dose is The personnel can approach the low radiation dose, but based on the principle of reasonable reduction (ALARA), the operator still needs to be as far away as possible from the surface of the contaminated concrete; if the concrete scraping and detection separation device is used, the operator and the machine may need more The near-surface-contaminated concrete causes doubts about repeated pollution; and may be based on the principle of conservation, scraping the deeper thickness of the concrete surface at a time, increasing the amount of radioactive waste.

In view of this, the inventors of this case have intensively discussed the above-mentioned problems of conventional inventions, and actively pursued solutions through years of experience in R&D and manufacturing of related industries. After long-term efforts in research and development, they have finally succeeded in developing this book. Invented the "concrete decontamination and automatic radiation detection device" to improve the various problems of the application.

The main purpose of the invention is that the radiation detection device can be used for the radiation detection before the scraping, and then the surface of the concrete surface is scraped by the concrete decontamination scraping device, and at the same time, the contaminated concrete is scraped off. The debris is collected by the suction mechanism, and the release limit of the contaminated concrete debris is confirmed. Thus, the three operations of the radiation detection before the scraping, the surface scraping of the surface pollution, and the radiation detection after the scraping can be completed at one time. To achieve the effect of reducing the amount of contaminated concrete waste, reducing the cost of treatment, reducing the amount of decontamination after detection operations, reducing the exposure of personnel and complying with the principle of reasonable radiation protection.

In order to achieve the above object, the present invention is a concrete decontamination and automatic radiation detection device, which comprises: a concrete decontamination and scraping device with a decontamination scraping device protective cover and a scraping tool; at least two and The radiation detection device combined with the protective cover of the dirt scraping device; and a suction mechanism connected with the protective cover of the decontamination scraping device.

In an embodiment of the present invention, the protective cover of the decontamination scraping device has an opening on the bottom surface thereof, and an adjusting unit is disposed in the protective cover of the decontamination scraping device to make the scraping In addition to the combination of the tool and the adjustment unit, the corresponding position is set at the opening to adjust the scraping depth of the scraping tool by the adjusting unit.

In one embodiment of the invention, the scraping tool is a drum shaped tool.

In an embodiment of the invention, the radiation detection device can be disposed on both sides of the protective cover of the decontamination scraping device.

In an embodiment of the invention, the suction mechanism includes a vacuum extraction line in communication with the decontamination scraping device protective cover, and a vacuum extraction/filtering device in communication with the vacuum extraction line.

1‧‧‧Concrete decontamination and scraping device equipment

11‧‧‧Decontamination and scraping equipment protective cover

12‧‧‧Scraping tool

111‧‧‧ openings

13‧‧‧Adjustment unit

2‧‧‧radiation detection equipment

3‧‧‧ suction mechanism

31‧‧‧Vacuum extraction line

32‧‧‧Vacuum extraction/filtration equipment

Figure 1 is a schematic diagram of the basic architecture of the present invention.

Fig. 2 is a schematic view showing the state of the concrete decontamination scraping device of the present invention.

Please refer to the "1st and 2nd drawings" for a schematic view of the basic structure of the present invention and a bottom view of the concrete decontamination and scraping device of the present invention. As shown in the figure, the present invention is a concrete decontamination and automatic radiation detecting device, which comprises at least one concrete decontamination scraping device device 1, at least two radiation detecting devices 2, and a suction mechanism 3.

The concrete decontamination scraping device 1 mentioned above comprises a decontamination scraping device protective cover 11 and a scraping blade 12 which is disposed in the decontamination scraping device protective cover 11, wherein the decontamination scraping blade An opening 111 is formed on the bottom surface of the equipment protection cover 11 , and an adjustment unit 13 is disposed in the protection device 11 of the decontamination device 11 . The scraping tool 12 is coupled to the adjustment unit 13 and correspondingly disposed in the opening 111 . At this point, the scraping depth of the scraping blade 12 is adjusted by the adjusting unit 13, and the scraping blade 12 is a drum-shaped cutter.

Each of the radiation detecting devices 2 is combined with the dust removing and scraping device protective cover 11, and in the embodiment of the present invention, the radiation detecting device 2 can be disposed on both sides of the dirt removing and scraping device protective cover 11.

The suction mechanism 3 is in communication with the decontamination scraping device protective cover 11 , and the suction mechanism 3 includes a vacuum extraction line 31 communicating with the decontamination scraping device protective cover 11 and a vacuum extraction line 31 Vacuum extraction/filtration device 32.

When the present invention is applied, the radiation detection device 2 performs the pre-scraping radiation detection, and then the scraping tool 12 of the concrete decontamination and scraping device device 1 scrapes off the surface of the concrete surface due to the equipment. The radiation detection device 2 can also perform radiation detection after scraping, and the surface-contaminated concrete debris scraped off will be collected through the vacuum extraction line 31 and the vacuum extraction/filtering device 32, and the collected pieces are collected. Due to the adhesion of concrete surface, the chips will be treated and disposed of as low-level radioactive waste, and the surface-contaminated concrete will be scraped off after repeated scraping of the surface-contaminated concrete. The detection equipment 2 detects that the concrete after decontamination is uncontaminated concrete or concrete with very low radiation pollution (less than the external release limit specified in the regulations), it can be externally released after the detection, so the pollution to be disposed of The amount of concrete is greatly reduced, and the disposal cost of radioactive waste is greatly reduced. Thus, the surface of the concrete surface can be scraped and scraped after the radiation detection and surface contamination can be completed at one time. Three tasks such as radiation detection (the procedure that needs to be divided into three steps), so that the staff also completed three tasks at a time due to the present invention, and it is urgent to repeat the concrete close to the surface pollution or the concrete in the surface for a long time. Inside, thereby reducing the exposure of personnel.

In summary, the concrete decontamination and automatic radiation detection device of the invention can effectively improve various shortcomings of the conventional use, and the radiation detection device can be used for the radiation detection before the scraping, and then the concrete decontamination and scraping device is used for surface contamination. Concrete surface scraped, and the same When the scraped concrete debris is scraped off, it is collected by the suction mechanism, and the release limit of the contaminated concrete debris is confirmed. Thus, the surface detection and the surface contamination of the concrete can be scraped and scraped at one time. Three tasks, such as post-radiation detection, to achieve the effect of reducing the amount of contaminated concrete waste, reducing the processing cost, reducing the amount of post-decontamination detection operations, reducing the exposure dose of personnel, and complying with the principle of reasonable radiation suppression; The need to produce more progressive, more practical, and more in line with consumer use, has indeed met the requirements of the invention patent application, and filed a patent application according to law. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

1‧‧‧Concrete decontamination and scraping device equipment

11‧‧‧Decontamination and scraping equipment protective cover

12‧‧‧Scraping tool

111‧‧‧ openings

13‧‧‧Adjustment unit

2‧‧‧radiation detection equipment

3‧‧‧ suction mechanism

31‧‧‧Vacuum extraction line

32‧‧‧Vacuum extraction/filtration equipment

Claims (5)

The utility model relates to a concrete decontamination and automatic radiation detecting device, which comprises: a concrete decontamination and scraping device device, which comprises a protective cover for a decontamination scraping device and a scraping machine which is arranged in the protective cover of the decontamination scraping device In addition to the tool, the surface of the concrete used for surface contamination is scraped; at least two radiation detection equipment is combined with the protective cover of the decontamination and scraping equipment to perform the radiation detection before and after the scraping, and is scraped Except for the externally released limit of the concrete debris in the post-radiation detection; and a suction mechanism connected to the protective cover of the decontamination scraping device for collecting scraping through the concrete decontamination scraping device Concrete debris that comes down from the surface. The concrete decontamination and automatic radiation detection device according to the first aspect of the patent application scope, wherein the protection cover of the decontamination and scraping device has an opening on the bottom surface thereof, and the protection cover of the decontamination and scraping device is provided An adjusting unit is disposed, and the scraping tool is combined with the adjusting unit to be disposed at the opening to adjust the scraping depth of the scraping tool by the adjusting unit. The concrete decontamination and automatic radiation detecting device according to the first aspect of the patent application, wherein the scraping tool is a drum-shaped cutter. The concrete decontamination and automatic radiation detection device according to the first aspect of the patent application scope, wherein the radiation detection device can be disposed on both sides of the protection cover of the decontamination and scraping device. The concrete decontamination and automatic radiation detecting device according to the first aspect of the patent application, wherein the suction mechanism comprises a vacuum extraction pipe connected to the protective cover of the decontamination scraping device, and a vacuum extraction pipe Connected vacuum extraction/filtration equipment.