System and method for collecting and evaluating characteristics of large concrete container wall block sample

Abstract

A method for collecting and evaluating the characteristics of a large concrete container wall block sample according to another aspect of the present invention comprises: cutting at least a portion of a large concrete container to form a concrete container wall block; disposing the concrete container wall block inside a sample collection and characteristics evaluation space-providing apparatus; detaching a detachable surface dose rate measurement device and a detachable sample collection device located in the sample collection and characteristics evaluation space-providing apparatus, and moving the devices toward the concrete container wall block while maintaining a certain distance therefrom; arranging the detachable surface dose rate measurement device and the detachable sample collection device with respect to the concrete container wall block so that the devices do not interfere with each other; and arranging a plurality of the detachable surface dose rate measurement devices spaced apart from each other and a plurality of the detachable sample collection devices spaced apart from each other.

Description

System and method for sampling and characterizing large concrete container wall blocks

[0001] The present invention relates to a system and method for sampling and characterizing large concrete container wall blocks, and more particularly, to a system and method for sampling and characterizing large concrete container wall blocks capable of quantifying appropriate sampling and characterizing in order to quickly perform self-disposal of large concrete wall blocks with minimal contamination.

[0002] Typically, radioactive waste storage facilities store large concrete containers containing high-dose concentrated waste liquid and high-dose waste resin for long-term storage.

[0003] A large concrete container contains a radioactive waste drum inside, and outside the large concrete container there are concrete wall blocks with a thickness of about 10 cm.

[0004] Concrete wall blocks of large concrete containers require characterization for self-disposal or disposal at a disposal site as radioactive waste.

[0005] In particular, some concrete wall blocks are so contaminated that they can be disposed of quickly, which could reduce the amount of radioactive waste.

[0006] Therefore, a device capable of quantifying appropriate sampling and characterization to enable rapid self-disposal of concrete wall blocks with minimal contamination levels that allow self-disposal is required.

[0007] The present invention has been devised to solve such problems, and the purpose of the present invention is to provide a system and method for sampling and evaluating the characteristics of a large concrete container wall block, which can effectively perform disposal and self-disposal of radioactive waste by cutting and dismantling a large concrete container containing high-dose concentrated waste liquid and high-dose waste resin stored in a radioactive waste storage facility, and obtaining the upper / lower / side square concrete wall blocks.

[0008] In addition, the purpose of the present invention is to provide a large concrete container wall block sampling and characterization evaluation system and method that can efficiently perform characterization evaluation and sampling, and in particular, can facilitate sampling so that the contamination level is minimal enough to enable rapid self-disposal, thereby activating the disposal and self-disposal of radioactive waste.

[0009] A large concrete container wall block sampling and characteristic evaluation system according to one embodiment of the present invention includes a detachable surface dose rate measuring device that can be detachably installed around a large concrete container wall block, and a detachable sampling device that is detachably installed around the concrete container wall block and can rotate with respect to the concrete container wall block to collect samples.

[0010] According to another embodiment of the present invention, a method for sampling and characterizing a large concrete container wall block includes the steps of: forming a concrete container wall block by cutting at least a portion of a large concrete container; arranging the concrete container wall block inside a sampling and characterization space providing device; detaching a removable surface dose rate measuring device and a removable sampling device located in the sampling and characterization space providing device and moving them so as to have a predetermined distance from the concrete container wall block; arranging the removable surface dose rate measuring device and the removable sampling device so as not to interfere with each other with respect to the concrete container wall block; and arranging a plurality of the removable surface dose rate measuring devices and the removable sampling devices so as to be spaced apart from each other.

[0011] The above-described removable surface dose rate measuring device and the above-described removable sampling device can be spaced apart from each other on the side, top, and bottom of the large concrete container wall block.

[0012] At least two load cells may be spaced apart and placed under the large concrete container wall block so as to measure the mass of the large concrete container wall block.

[0013] According to a system and method for sampling and evaluating characteristics of a large concrete container wall block of one embodiment of the present invention, it is possible to effectively dispose of and self-dispose of upper / lower / side square concrete wall blocks of radioactive waste obtained by cutting and dismantling a large concrete container packed with high-dose concentrated waste liquid and high-dose waste resin in a radioactive waste storage facility.

[0014] In addition, according to the large concrete container wall block sampling and characteristic evaluation system and method of one embodiment of the present invention, characteristic evaluation and sampling can be efficiently performed, and in particular, sampling can be facilitated, so that the contamination level can be representative enough to enable rapid self-disposal, thereby activating the disposal and self-disposal of radioactive waste.

[0015] A large concrete container wall block sampling and characterization system according to one embodiment of the present invention can rapidly perform sampling for characterization of large concrete container wall blocks using a removable surface dose rate measuring device and a removable sampling device, can measure a quantified surface dose rate so as to prove the representativeness of a sample, and can flexibly respond to the size of large concrete container wall blocks.

[0016] FIG. 1 is a plan view of the upper part of a large concrete container wall block sampling and characterization system according to one embodiment of the present invention;

[0017] Figure 2 is a drawing of the upper part seen from inside Figure 1;

[0018] Figure 3 is a drawing of the lower part seen from inside Figure 1;

[0019] Figure 4 is a drawing of a concrete container wall block placed within the large concrete container wall block sampling and characterization system of Figure 1.

[0020] Figure 5 is a drawing of a removable sampling device and a surface dose rate measuring device moved to face a concrete container wall block for sampling and surface dose rate measurement.

[0021] Figure 6 is a conceptual diagram illustrating the structure of the detachable sampling device and the detachable surface dose rate measuring device of Figure 1, and

[0022] Figure 7 is a flowchart illustrating a method for sampling and evaluating characteristics of a large concrete container wall block according to one embodiment of the present invention.

[0023] Hereinafter, with reference to the attached drawings, an embodiment of the present invention will be described in detail so that those skilled in the art can easily implement the invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0024]

[0025] *Also, throughout the specification, whenever a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise specifically stated.

[0026] Hereinafter, a large concrete container wall block sampling and characteristic evaluation system according to one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

[0027] FIG. 1 is a plan view showing the upper part of a large concrete container wall block sampling and characterization system according to an embodiment of the present invention, FIG. 2 is a view showing the upper part from the inside of FIG. 1, FIG. 3 is a view showing the lower part from the inside of FIG. 1, FIG. 4 is a view showing concrete container wall blocks arranged in the large concrete container wall block sampling and characterization system of FIG. 1, FIG. 5 is a view showing a removable sampling device and a surface dose rate measuring device moved to face a concrete container wall block for sampling and surface dose rate measurement, and FIG. 6 is a conceptual diagram explaining the structure of the removable sampling device and the removable surface dose rate measuring device of FIG. 1.

[0028] As illustrated in FIG. 1, a large concrete container wall block sampling and characteristic evaluation system (100) according to one embodiment of the present invention comprises a sampling and characteristic evaluation space providing device (110) that is configured to be larger than the diameter or width of the cross-section of the concrete container shape so that a large concrete container wall block (CB) formed by cutting off a certain upper portion of the large concrete container can be easily placed, if the cross-section of the concrete container shape is circular or rectangular in correspondence to the shape of the large concrete container, and is openable and provides a closed space during sampling and characteristic evaluation, a detachable surface dose rate measuring device (130) that can be detachably installed around the large concrete container wall block (CB), and a detachable sampling device (150) that has a void inside and is detachably installed around the concrete container wall block (CB) and can rotate with respect to the concrete container wall block (CB) to collect samples.

[0029] The above-described removable surface dose rate measuring device (130) or the above-described removable sample collection device (150) can be movably fixed to the inner side provided by the sample collection and characteristic evaluation space providing device (110) by a movable fixing device (170).

[0030] The above-mentioned movable fixing device (170) may include a detachable fixing part (171) that is detachably fixed to the sample collection and characteristic evaluation space providing device (110), and a moving part (173) for approaching and moving the detachable surface dose rate measuring device (130) or the detachable sample collection device (150) to the concrete container wall block and fixing it.

[0031] The above-mentioned detachable fixing part (171) may be various male and female fastening means corresponding to the measurement panel detachable and connecting part (133) or the sample collection detachable and connecting part (159) described later.

[0032] As shown in FIGS. 2 and 6, the detachable surface dose rate measuring device (130) may include a measuring panel (131) having a corresponding circular or rectangular shape corresponding to the upper shape of the large concrete container, if the upper shape of the concrete container is circular or rectangular, a measuring panel detachable / coupled part (133) to which the movable fixing device (170) or the detachable sampling device (150) is detachably coupled, and a surface dose rate measurement control part (135) that controls the surface dose rate measurement of the surface dose rate measuring device (130).

[0033] The above measurement panel detachable / attachable part (133) may be a male / female fastening means corresponding to the male / female fastening means of the movable fixing device (170) or the detachable sample collection device (150).

[0034] The measuring panel (131) of the above-mentioned removable surface dose rate measuring device (130) can be installed facing the large concrete container wall block (CB) so as to measure the surface dose rate, thereby proving the representativeness of the characteristic evaluation for the large concrete container wall block (CB).

[0035] As shown in FIG. 2 and FIG. 6, the sampling device (150) is arranged in a plurality (151, 152, 153, 154) at a certain interval with respect to the large concrete container wall block (CB), and likewise, can prove the representativeness of the characteristic evaluation with respect to the large concrete container wall block (CB).

[0036]

[0037] *Preferably, in the present specification, the sampling device (150) may be installed such that the first to fourth sampling devices (151, 152, 153, 154) are spaced apart from each other by about 50 cm with respect to the upper portion of the sampling and characteristic evaluation space providing device (110), and the measuring panel (131) of the removable surface dose rate measuring device (130) may be placed so as to be spaced apart from the concrete container wall block by about 50 cm.

[0038] The above-described detachable sample collection device (150) can be detachably installed on one side of the sample collection and characteristic evaluation space providing device (110) so as not to interfere with the measurement of the above-described detachable surface dose rate measuring device (130).

[0039] That is, it can be detached from the detachable surface dose rate measuring device (130) so as not to interfere with the measurement of the detachable surface dose rate measuring device (130) and independently spaced apart from the upper portion of the large concrete container wall block (CB) as shown in FIG. 2.

[0040] The above detachable sampling device (150) has a cone-shaped tip (155) that is formed within the tip (155) to enable sampling while penetrating the concrete container wall block (CB) while rotating, and an internal receiving portion (156) that forms an internal space in which a sample collected through the tip (155) is collected, a rotation driving portion (157) that rotates the tip (155), a moving path (158) that moves the sample collected through the tip (155) from the tip (155) to the internal receiving portion (156), and the detachable sampling device (150) is coupled to the detachable surface dose rate measuring device (130) or the sampling and characteristic evaluation space providing device (110) to be fixedly supported during sampling, and after sampling. It may further include a detachable sample collection attachment / detachment part (159).

[0041] When the tip (155) of the detachable sample collection device (150) is rotated by the rotary drive unit (157), the sample can be effectively collected from the internal receiving unit (156) through the moving path (158).

[0042] The detachable sample collection device (150) is installed at a desired location by the above-mentioned sample collection detachable part (159) and is positioned at an appropriate location on the side / upper / lower side of the concrete container wall block (CB) to achieve effective sample collection.

[0043] The above sample collection attachment / detachment part (159) may be a variety of male / female fastening means.

[0044] As illustrated in FIG. 3, a large concrete container wall block sampling and characteristic evaluation system (100) according to one embodiment of the present invention may further include a load cell device (180) capable of measuring the mass of the large concrete container wall block (CB) at the bottom of the sampling and characteristic evaluation space providing device (110).

[0045] The load cell device (180) may be provided detachably to the bottom of the sampling and characteristic evaluation space providing device (110) so as to accurately measure the mass of the large concrete container wall block (CB), and may include first to fourth load cells (181, 182, 183, 184) arranged at a predetermined distance, preferably about 50 cm, from each other around the center of gravity of the large concrete container wall block (CB).

[0046] As illustrated in FIG. 4, for example, the upper portion of a large concrete container (C) may be cut to form the large concrete container wall block (CB), and placed inside the sample collection and characteristic evaluation space providing device (110) of the large concrete container wall block sample collection and characteristic evaluation system (100) according to one embodiment of the present invention.

[0047] The above-mentioned sample collection and characteristic evaluation space providing device (110) includes a space section (111) that provides a sample collection and characteristic evaluation space and a cover section (113) that seals the space section (111), so that the cover section (113) can be opened and the large concrete container wall block (CB) can be installed.

[0048] The above-mentioned sample collection and characteristic evaluation space providing device (110) may be opened or opened on at least one side (111) or the upper side (113) to facilitate installation of a large concrete container wall block (CB), and at least one of the opened side sides (111) may be closed by the upper side (113).

[0049] As shown in Fig. 5, the detachable surface dose rate measuring device (130) and the detachable sample collection device (150) detachably installed on each side of the sample collection and characteristic evaluation space providing device (110) can be detached using a detachable fixing part (171) and moved to an approaching position to measure the surface dose rate for the concrete container wall block (CB) and enable sample collection using a moving part (173).

[0050] The removable surface dose rate measuring device (130) and the removable sampling device (150) can be moved and installed by the movable fixing device (170) so as to have an appropriate distance from the concrete container wall block (CB), and the appropriate distance from the concrete container wall block (CB) can be provided to prove the representativeness of the characteristic evaluation for the concrete container wall block (CB).

[0051] The above-described removable surface dose rate measuring device (130) or the above-described removable sampling device (150) can be configured to be removable at a predetermined location so as to prevent interference with each other, and can be configured to be removable at a predetermined location so as to increase the reliability of measurement.

[0052] In addition, the removable sampling device (150) placed at an appropriate location can effectively achieve sampling for radioactive waste disposal and self-disposal by providing representative sampling of the concrete container wall block (CB).

[0053] Now, referring to FIG. 7, a method for sampling and evaluating characteristics of a large concrete container wall block according to one embodiment of the present invention will be described.

[0054] A method for sampling and evaluating characteristics of a large concrete container wall block according to one embodiment of the present invention comprises cutting the upper part of a large concrete container (C) to form a concrete container wall block (CB) (S110), and placing the concrete container wall block (CB) inside a sampling and characteristic evaluation space providing device (110) of a large concrete container wall block sampling and characteristic evaluation system (100) according to one embodiment of the present invention (S120).

[0055] The removable surface dose rate measuring device (130) and the sample collection device (150) located on the side of the sample collection and characteristic evaluation space providing device (110) are detached and brought closer to the concrete container wall block (CB) so that the removable surface dose rate measuring device (130) and the sample collection device (150) have a predetermined distance (S130).

[0056] The above-mentioned removable surface dose rate measuring device (130) and the above-mentioned removable sample collection device (150) are positioned so as not to interfere with each other with respect to the concrete container wall block (CB) (S140).

[0057] The above-mentioned removable surface dose rate measuring device (130) and the above-mentioned removable sample collection device (150) are spaced apart from each other so that they each have representative characteristics (S150).

[0058] The mass of the concrete container wall block (CB) is measured using the load cell device (180) for the concrete container wall block (S160).

[0059] The tip (155) of the removable sampling device (150) positioned on the side / upper / lower side of the concrete container wall block (CB) is driven to rotate by the rotation driving unit (157) to collect a sample for the internal receiving portion (156) through the moving path (158) (S170).

[0060] The surface dose rate measured by the removable surface dose rate measuring device (130) for the concrete container wall block (CB), the mass of the concrete container wall block measured by the load cell device (180), and the sample collected by the removable sample collection device (150) are used to perform a characteristic evaluation of the concrete container wall block (S180).

[0061] According to a system and method for sampling and evaluating characteristics of a large concrete container wall block of one embodiment of the present invention, it is possible to effectively dispose of and self-dispose of upper / lower / side square concrete wall blocks of radioactive waste obtained by cutting and dismantling a large concrete container packed with high-dose concentrated waste liquid and high-dose waste resin in a radioactive waste storage facility.

[0062] In addition, according to the large concrete container wall block sampling and characteristic evaluation system and method of one embodiment of the present invention, characteristic evaluation and sampling can be efficiently performed, and in particular, since sampling can be facilitated, it can be representative that the contamination level is minimal enough to enable rapid self-disposal, thereby activating the disposal and self-disposal of radioactive waste.

[0063] According to a system and method for sampling and evaluating characteristics of a large concrete container wall block according to one embodiment of the present invention, sampling can be quickly performed for evaluating characteristics of a large concrete container wall block using a removable surface dose rate measuring device and a removable sampling device, a quantified surface dose rate can be measured to prove the representativeness of a sample, and the system can flexibly respond to the size of a large concrete container wall block.

Claims

1. A large concrete container wall block sampling and characterization system comprising a removable surface dose rate measuring device that can be detachably installed around a large concrete container wall block, and a removable sampling device that is detachably installed around the concrete container wall block and can rotate with respect to the concrete container wall block to collect samples.

2. In paragraph 1, The above large concrete container wall block is formed by cutting a certain thickness of a large concrete container for radioactive waste. A sampling and characterization space providing device in which the large concrete container wall blocks are arranged and an internal space for sampling and characterization of the large concrete container wall blocks is provided, A large concrete container wall block sampling and characterization system further comprising a movable fixing device for detachably and movably fixing the removable surface dose rate measuring device or the removable sampling device to the large concrete container wall block.

3. In paragraph 2, The above-mentioned removable surface dose rate measuring device is placed at a certain distance from the large concrete container wall block by the above-mentioned movable fixing device, and is a large concrete container wall block sampling and characteristic evaluation system that is movably installed on the upper, lower, left, and right sides of the large concrete container wall block.

4. In paragraph 3, The above-mentioned removable sampling devices are arranged in multiple numbers so as to be spaced apart from each other and approach the large concrete container wall block, and are arranged so as not to interfere with each other with the above-mentioned removable surface dose rate measuring device. A large concrete container wall block sampling and characteristic evaluation system comprising a cone-shaped tip that penetrates the concrete container wall block to facilitate sampling, an internal receiving portion that forms an internal space in which a sample collected through the tip is collected, and a rotary driving portion that rotates the tip.

5. In paragraph 2, A large concrete container wall block sampling and characterization system comprising at least two additional load cell devices for measuring the mass of the large concrete container wall block.

6. In the method of sampling and evaluating the characteristics of large concrete container wall blocks, A step of cutting at least a portion of a large concrete container to form a concrete container wall block, A step of placing the above concrete container wall block inside a sampling and characteristic evaluation space providing device, A step of detaching the detachable surface dose rate measuring device and the detachable sampling device located in the above sampling and characteristic evaluation space providing device and moving them so as to have a predetermined distance from the concrete container wall block; A step of arranging the detachable surface dose rate measuring device and the detachable sampling device so that they do not interfere with each other with respect to the concrete container wall block; A method for sampling and evaluating characteristics of a large concrete container wall block, comprising a step of arranging a plurality of the above-described removable surface dose rate measuring devices and the above-described removable sampling devices at a distance from each other.

7. In paragraph 6, A step of measuring the mass of the concrete container wall block using a load cell device at the bottom of the concrete container wall block, A step of collecting a sample for the internal receiving portion by rotating the tip of the removable sampling device placed on the side or upper and lower portions of the concrete container wall block, A method for sampling and evaluating characteristics of a large concrete container wall block, comprising the step of performing a characteristic evaluation of the concrete container wall block using a surface dose rate measured by the removable surface dose rate measuring device for the concrete container wall block, a mass of the concrete container wall block measured by the load cell device, and a sample collected by the removable sampling device.

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