Radiation detection and purification device

Abstract

The invention discloses the technical field of radiation detection, and particularly relates to a radiation detection and purification device which comprises a detection mechanism, a detection platform, a containing assembly arranged on the detection platform, a detection assembly arranged on the detection platform and a moving guide rail arranged on the containing assembly. The accommodating assembly is used for placing a to-be-detected object, the detection assembly is used for detecting the to-be-detected object on the detection platform, and the moving guide rail is used for moving the to-be-detected object; the purification mechanism is arranged on the detection mechanism, performs decontamination and purification work on the to-be-detected object placed above the detection platform according to information fed back by the detection assembly, and is mounted in a small container in a modularized, intensive and miniaturized manner; through cooperative operation of all the system modules, the functions of full-automatic filter element removal, glue removal and polishing and tail end nuclear radiation detection and purification of the reusable radioactive sodium-containing air filter are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of radiation detection, and in particular to a radiation detection purification device. Background Art

[0002] The prior art has the risk of radioactive contamination leakage during the disassembly of the metal frame of the filter element, and is likely to cause damage to the metal frame of the filter element. The instruments used to detect radiation have a small measurement area and a low range, and have certain limitations and inaccuracies. When abnormal radiation occurs on site, the radiation alarm device has low timeliness and the alarm signal reacts slowly. When the detection instrument detects contamination in the metal frame, the prior art cannot effectively and timely decontaminate it, and cannot ensure that the contamination does not spread and the safety of the staff and the working environment. The prior art uses semi-automatic program control for the entire process from detection to purification, and has low work efficiency, requires a large amount of manpower and material resources, and increases production costs.

[0003] In summary, it is difficult to ensure the safety of the reused metal frame and the safety of the staff with the existing technology. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the risk of radioactive contamination leakage during the disassembly of the metal outer frame of the above-mentioned existing filter core, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a radiation detection purification device.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a detection mechanism, including a detection platform, a receiving component arranged on the detection platform, a detection component arranged on the detection platform, and a movable guide rail arranged on the receiving component, the receiving component is used to place the object to be detected, the detection component is used to detect the object to be detected on the detection platform, and the movable guide rail is used to move the object to be detected; a purification mechanism is arranged on the detection mechanism, and performs decontamination and purification work on the object to be detected placed above the detection platform according to the information fed back by the detection component.

[0008] As a preferred solution of the radiation detection and purification device described in the present invention, the receiving assembly includes a detection space and a storage box, the detection space is the area that the object to be detected needs to pass through for radiation detection, and the storage box is arranged at the end of the movable guide rail, and the storage box is used to store the detected objects.

[0009] As a preferred solution of the radiation detection and purification device described in the present invention, the detection component includes a radiation detector and a servo motor, the radiation detector is arranged at the front end of the detection space, the detection platform is arranged at the lower end of the radiation detector, and the radiation detector is used to perform radioactive contamination detection on outer frames of different specifications and sizes after degumming and polishing.

[0010] As a preferred solution of the radiation detection and purification device of the present invention, wherein: a lifting rod is provided on the movable guide rail, and a suction cup is provided on the lifting rod;

[0011] A first motor is arranged at the upper end of the lifting rod, an output end of the first motor is connected with a coupling and a connecting block matched with the lead screw, and a second motor is arranged at the end of the movable guide rail close to the storage box.

[0012] As a preferred embodiment of the radiation detection purification device of the present invention, the purification mechanism includes a decontamination liquid sprayer, a decontamination liquid spray head and a radioactive decontamination liquid water tank, the purification mechanism is used for decontamination and disinfection work, and the purification mechanism is arranged above the storage box.

[0013] As a preferred solution of the radiation detection and purification device described in the present invention, the radiation detector includes a Nal crystal γ probe, an a-β surface contamination measuring instrument, a radiation alarm and a control component. The Nal crystal γ probe is arranged at the lower end of the detection platform, and the a and β surface contamination measurements are arranged in the detection space. It is worth noting that the Nal crystal γ probe is distributed in a cross shape and is arranged at the lower end of the detection platform inside the detection space. There are 72 a-β surface contamination detectors in total, using large-area plastic scintillator detectors. The upper and lower layers are each assembled from 36 detectors with an area of ​​100 cm2. One group of 36 detectors with an area of ​​100 cm2 are arranged on the storage surface in a 6×6 distribution, and the other group is divided into two parts and installed above the detection platform in a double-door manner, and each part is distributed in a 3×6 manner.

[0014] As a preferred solution of the radiation detection and purification device of the present invention, the a-β surface contamination measuring instrument is divided into two groups to form two opposing detection doors, and each detection door is connected to the detection platform through a flip cover.

[0015] As a preferred solution of the radiation detection and purification device of the present invention, the Nal crystal gamma probe and the a-beta surface contamination measuring instrument are connected to the radiation alarm component and the control component through a communication cable.

[0016] As a preferred embodiment of the radiation detection and purification device of the present invention, the decontamination liquid sprayer is used to perform physical and chemical treatment on the decontamination liquid in the radioactive decontamination liquid tank, and the decontamination liquid sprayer evenly sprays the treated decontamination liquid on the surface of the object to be detected.

[0017] As a preferred solution of the radiation detection and purification device of the present invention, the detection platform is further provided with front and rear positioning members and a left positioning member, and the front and rear positioning members are controlled by cylinders.

[0018] The beneficial effects of the present invention are as follows: the present invention is installed at the end of the radioactive sodium-containing filter element automatic disassembly equipment, and is installed in a small container in a modular, intensive and miniaturized manner. Through the coordinated operation of various system modules, the fully automatic filter element removal, glue removal and polishing of the reusable radioactive sodium-containing air filter and the terminal nuclear radiation detection and purification functions are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the radiation detection and purification device of the present invention.

[0021] Figure 2 It is a side view of the overall structure of the radiation detection and purification device of the present invention.

[0022] Figure 3 It is a front view of the shaking mechanism of the radiation detection and purification device of the present invention.

[0023] Figure 4 It is an enlarged view of part of the structure of the radiation detection and purification device of the present invention.

[0024] Figure 5 It is a partial structural schematic diagram of the radiation detection and purification device of the present invention.

[0025] In the figure: 100, detection mechanism; 101, detection platform; 101a, front and rear positioning parts; 101b, left positioning part; 102, storage component; 102a, detection space; 102b, storage box; 103, detection component; 103a, radiation detector; 103b, servo motor; 103c, Nal crystal γ probe; 103d, a-β surface contamination measuring instrument; 103e, radiation alarm; 103f, control part; 104, moving guide rail; 104a, lifting rod; 104b, suction cup; 200, purification mechanism; 201, cleaning liquid sprayer; 202, cleaning liquid spray head; 203, radioactive decontamination cleaning liquid water tank. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1, reference Figure 1 to Figure 2 , which is the first embodiment of the present invention, provides a radiation detection purification device, including a detection mechanism 100, including a detection platform 101, a receiving component 102 arranged on the detection platform 101, a detection component 103 arranged on the detection platform 101, and a moving guide rail 104 arranged on the receiving component 102, the receiving component 102 is used to place an object to be detected, the detection component 103 is used to detect the object to be detected on the detection platform 101, and the moving guide rail 104 is used to move the object to be detected;

[0031] Specifically, the purification mechanism 200 is disposed on the detection mechanism 100 , and performs decontamination and purification work on the object to be detected placed on the detection platform 101 according to the information fed back by the detection component 103 .

[0032] Furthermore, the receiving assembly 102 includes a detection space 102a and a storage box 102b. The detection space 102a is a region through which the object to be detected needs to pass for radiation detection. The storage box 102b is disposed at the end of the movable guide rail 104 and is used to store the detected object.

[0033] Furthermore, a lifting rod 104a is provided on the movable guide rail 104, and a suction cup 104b is provided on the lifting rod 104a; a first motor is provided on the upper end of the lifting rod 104a, and the output end of the first motor is connected to a coupling and a connecting block cooperating with a lead screw, and the lifting rod 104a can slide up and down through the cooperation of various components, and a second motor is provided at the end of the movable guide rail 104 near the storage box 102b. It is worth noting that the output end of the second motor is connected to a coupling, and the lateral movement of the lifting rod 104a is achieved by a lead screw transmission, and limiting devices are respectively provided at the front section and the end position of the lateral movable guide rail 104, so that the lateral movement of the lifting rod 104a can be carried out smoothly and safely.

[0034] It should be noted that the detection space 102a is the space area through which the metal outer frame of the tested filter element needs to pass for radiation detection. A radiation detector 103a is provided at the front end of the detection space. The radiation detector 103a is a device for detecting radioactive contamination of frames of different specifications and sizes after degumming and polishing. An adjustable detection platform 101 is provided at the lower end of the radiation detector 103a, and its height can be adjusted according to the actual situation of the site and the front section to ensure operational safety. A purification mechanism 200 is provided at the rear end of the detection space 102a. The purification mechanism 200 is used to decontaminate the metal outer frame of the filter element with radiation contamination, avoid the leakage of radioactive contamination, ensure the safety of the environment and staff, and improve the reuse rate of the metal outer frame of the filter. The purification mechanism 200 can perform automatic decontamination and washing operations according to the detection data and alarm conditions of the radiation detector 103a. A storage box 102b is provided at the lower end of the purification mechanism 200 to store the metal outer frame of the filter element that has been proved to be contaminated by radiation detection in the front section, and reinstall it for reuse after routine cleaning. A transverse moving guide rail 104 is arranged at the upper end of the middle position inside the detection space 102a. The transverse moving guide rail 104 realizes the safe and smooth transfer of the workpiece with high precision and good sensitivity, improves the processing efficiency and safety performance, avoids the metal outer frame from being damaged by bumps during transportation, and ensures the quality of the reused metal outer frame.

[0035] It should also be noted that a lifting rod 104a is installed on the transverse moving guide rail 104, and the lifting rod 104a can perform transverse linear motion on the transverse moving guide rail 104, and its movement is controlled by a motor installed at the end of the transverse moving guide rail 104, and the output end of the motor is connected to a coupling, and the transverse movement of the lifting rod 104a is achieved by a lead screw transmission. Limiting devices are respectively provided at the front section and the end position of the transverse moving guide rail 104, so that the transverse movement of the lifting rod 104a can be carried out smoothly and safely. The lifting and lowering action of the lifting rod 104a is controlled by a motor installed at the upper end of the transverse moving guide rail 104, and the output end of the motor is connected to a coupling and a connecting block that cooperates with the lead screw. Through the cooperation of various components, the lifting rod 104a can achieve an up and down sliding action, and a suction cup 104b is provided at the lower end of the lifting rod 104a, and the suction cup 104b is composed of a plurality of small suction cups 104b. The arrangement of the disk 104b can be adjusted according to the size of the product model. The suction cup 104b and the lifting rod 104a cooperate to grab the test piece and send it into the radiation detection space 102a. A detection platform 101 is arranged below the front section of the transverse moving guide rail 104. The detection platform 101 is provided with front and rear positioning mechanisms and a left positioning piece 101b according to the size and specification of the outer frame to be tested. The front and rear positioning mechanisms are controlled by a cylinder and are used for accurate positioning of the suction cup 104b during the suction action to ensure that the outer frame to be tested can be smoothly and safely transferred to the end of the transverse moving guide rail 104. The detection platform 101 is an adjustable structure, and its height can be adjusted according to the actual situation on site and in the front section to ensure the safety of operation. A storage box 102b is arranged at the end of the transverse moving guide rail 104 to store the metal outer frames that have been confirmed to be free of radioactive contamination through radiation detection, and to reinstall them for reuse after routine cleaning.

[0036] Example 2, reference Figures 1 to 5 This embodiment is different from the first embodiment in that the detection component 103 includes a radiation detector 103a and a servo motor 103b. The radiation detector 103a is arranged at the front end of the detection space 102a. A detection platform 101 is arranged at the lower end of the radiation detector 103a. The radiation detector 103a is used to perform radioactive contamination detection on outer frames of different specifications and sizes after degumming and polishing.

[0037] Specifically, the radiation detector 103a includes a Nal crystal gamma probe 103c, an a-β surface contamination measuring instrument 103d, a radiation alarm 103e and a control component 103f. The Nal crystal gamma probe 103c is arranged at the lower end of the detection platform 101, and the a and β surface contamination measurements are arranged in the detection space 102a. It is worth noting that the Nal crystal gamma probe 103c is distributed in a cross shape and is arranged at the lower end of the detection platform 101 inside the detection space 102a. There are 72 a-β surface contamination detectors in total, using large-area plastic scintillator detectors. The upper and lower layers are each assembled from 36 detectors with an area of ​​100cm2. One group of 36 detectors with an area of ​​100cm2 are arranged on the storage surface in a 6×6 distribution, and the other group is divided into two parts and installed above the detection platform 101 in a double-door manner, and each part is distributed in a 3×6 manner.

[0038] Furthermore, the a-β surface contamination measuring instrument 103d is divided into two groups, and forms two opposing detection doors, each detection door is connected to the detection platform 101 through a flip cover. It is worth noting that during measurement, the probe of the radiation detector 103a maintains a vertical distance of 1 cm from the metal frame being measured.

[0039] Furthermore, the Nal crystal gamma probe 103c and the a-β surface contamination measuring instrument 103d are connected to the radiation alarm component 103e and the control component 103f via a communication cable. It is worth noting that since the Nal crystal gamma probe 103c and the a-β surface contamination measuring instrument 103d are highly sensitive, easy to operate, and can respond in real time according to the detection data, by combining them with the control component 103f, remote real-time monitoring and alarm can be achieved.

[0040] It should be noted that the radiation detector 103a includes a detection device (Nal crystal γ probe 103c, a-β surface contamination measuring instrument 103d), a radiation alarm 103e, and a control component 103f. The detection device is a device for radiation detection of the disassembled metal outer frame. It is selected and set according to the shape, size and pollutants of the outer frame. The Nal crystal γ probe 103c and the a-β surface contamination measuring instrument 103d with high sensitivity and high precision are used. The Nal crystal γ probe 103c is distributed in a cross shape and is set on the detection platform inside the detection space 102a. At the lower end of 101, there are 72 a-β surface contamination detectors in total, using large-area plastic scintillator detectors. The upper and lower layers are assembled by 36 detectors with an area of ​​100cm2 each. One group of 36 detectors with an area of ​​100cm2 are arranged on the storage surface in a 6×6 distribution. The other group is divided into two parts and installed above the detection platform 101 in a double-door manner. Each part is arranged in a 3×6 distribution to form two double-door detection doors. Each detection door is connected to the detection platform 101 through a flip cover. During measurement, the radiation detector 103a probe maintains a vertical distance of 1cm from the metal frame to be tested. When the metal outer frame to be tested passes through the detection space 102a, the outer frame can be accurately tested. The detection device is connected to the radiation alarm 103e and the control 103f through a communication cable. The radiation alarm 103e has high sensitivity, is easy to operate, and can respond in real time according to the detection data. Combined with the control 103f, remote real-time monitoring and alarm can be realized.

[0041] The rest of the structure is the same as that of Example 1.

[0042] Example 3, reference Figures 1 to 5 This embodiment is different from the above embodiments in that: the purification mechanism 200 includes a decontamination liquid sprayer 201, a decontamination liquid spray head 202 and a radioactive decontamination liquid water tank 203. The purification mechanism 200 is used to perform decontamination and decontamination work according to the detection data and alarm status of the radiation detector 103a. The purification mechanism 200 is arranged above the storage box 102b.

[0043] Specifically, the decontamination liquid sprayer 201 is used to perform physical and chemical treatment on the decontamination liquid in the radioactive decontamination liquid tank 203, and after the treatment, the decontamination liquid is evenly sprayed on the surface of the object to be tested through the decontamination liquid spray head 202, thereby achieving the purpose of radioactive decontamination and purification.

[0044] Furthermore, the detection platform 101 is also provided with front and rear positioning members 101a and a left positioning member 101b, and the front and rear positioning members 101a are controlled by cylinders.

[0045] It should be noted that the purification mechanism 200 includes a cleaning liquid sprayer 201, a cleaning liquid spray head 202, and a radioactive decontamination cleaning liquid water tank 203. The purification mechanism 200 is arranged in the detection space 102a at the rear end of the radiation detector 103a, and is evenly distributed on the side of the detection space 102a. When there is radioactive contamination in the detected metal frame, the cleaning liquid sprayer 201 is started to atomize the radioactive cleaning liquid in the radioactive decontamination cleaning liquid water tank 203, and evenly spray it on the surface of the detected metal frame through the cleaning liquid spray head 202, so as to achieve the purpose of radioactive decontamination purification.

[0046] It should also be noted that the decontamination and purification device is arranged at the rear end of the radiation detector 103a, and can implement decontamination and washing operations according to the detection data and alarm conditions of the radiation detector 103a. When the metal outer frame to be tested passes through the radiation detector 103a area in the radiation detection space 102a, the detection device performs a rapid, comprehensive and accurate detection of the metal outer frame to be tested, and the radiation alarm device on the radiation detector 103a responds accordingly. When the detector does not alarm, the decontamination and purification device is not started, and the outer frame to be tested can be directly placed in the storage box 102b after the decontamination and purification device, and then reinstalled and reused after routine cleaning. When the detector alarms, the decontamination and purification device is started to perform decontamination and purification on the outer frame, and the outer frame after the decontamination and purification treatment is completed is returned to the radiation detection area by the horizontal moving guide rail 104 for radiation detection again, until the alarm device shows normal and then sent to the storage box 102b for routine cleaning and reinstallation, so as to ensure the safety of the components used for reused products.

[0047] The rest of the structure is the same as that of Example 2.

[0048] Operation process: First, adjust the position of the detection platform 101 according to the type and specification of the metal frame to be detected, set the parameters of the positioning mechanism, ensure that the lifting rod 104a is at the starting position, and then place the metal frame to be detected on the detection platform 101. When the two opposing detection doors are closed to a certain position, the a-β surface contamination measuring instrument 103d performs surface contamination detection on the metal frame. After the detection is completed, the a and β surface contamination measuring instruments are reset. After the lifting rod 104a moves downward to the set position, the suction cup 104b realizes the suction action and rises. When it rises to the set position, the Nal crystal γ probe 103c starts the detection. When the metal frame to be detected After the detection is completed by the radiation detector 103a in the detection space 102a, the lifting rod 104a drives the strong suction cup 104b and the metal outer frame to be detected to enter the purification mechanism 200. At the same time, the detection device outputs the detection data to the paper operation screen through the communication cable, the radiation alarm 103e, and the control part 103f. The radiation detector 103a responds and alarms in real time according to the detection data. The purification mechanism 200 can perform decontamination operations according to the detection data and alarm conditions of the radiation detector 103a. When the detector does not alarm, the purification mechanism 200 does not start. The outer frame to be tested can be directly placed in the storage box 102b after the decontamination and purification device, and then reinstalled and reused after routine cleaning. When the detector alarms, the purification mechanism 200 starts to decontaminate and purify the outer frame. The outer frame after the decontamination and purification treatment is returned to the radiation detection area by the horizontal moving guide rail 104 for radiation detection again, until the alarm device shows normal and then sent to the storage box 102b for routine cleaning and reinstallation, to ensure the safety of the components used for reused products.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A radiation detection and purification device, characterized in that: include, A detection mechanism (100) comprises a detection platform (101), a receiving component (102) arranged on the detection platform (101), a detection component (103) arranged on the detection platform (101), and a moving guide rail (104) arranged on the receiving component (102), wherein the receiving component (102) is used to place an object to be detected, the detection component (103) is used to detect the object to be detected on the detection platform (101), and the moving guide rail (104) is used to move the object to be detected; The purification mechanism (200) is arranged on the detection mechanism (100) and performs decontamination and purification work on the object to be detected placed on the detection platform (101) according to the information fed back by the detection component (103).

2. The radiation detection and purification device according to claim 1, characterized in that: The receiving assembly (102) comprises a detection space (102a) and a storage box (102b); the detection space (102a) is an area through which an object to be detected needs to pass for radiation detection; the storage box (102b) is arranged at the end of the movable guide rail (104); and the storage box (102b) is used to store objects after detection.

3. The radiation detection and purification device according to claim 2, characterized in that: The detection component (103) comprises a radiation detector (103a) and a servo motor (103b). The radiation detector (103a) is arranged at the front end of the detection space (102a). The detection platform (101) is arranged at the lower end of the radiation detector (103a). The radiation detector (103a) is used to perform radioactive contamination detection on outer frames of different specifications and sizes after debonding and polishing.

4. The radiation detection and purification device according to claim 3, characterized in that: The movable guide rail (104) is provided with a lifting rod (104a), and the lifting rod (104a) is provided with a suction cup (104b); A first motor is disposed at the upper end of the lifting rod (104a), an output end of the first motor is connected to a coupling and a connecting block that cooperates with the lead screw, and a second motor is disposed at the end of the movable guide rail (104) close to the storage box (102b).

5. The radiation detection and purification device according to claim 4, characterized in that: The purification mechanism (200) comprises a cleaning liquid sprayer (201), a cleaning liquid spray head (202) and a radioactive decontamination cleaning liquid water tank (203); the purification mechanism (200) is used to perform decontamination and cleaning work; the purification mechanism (200) is arranged above the storage box (102b).

6. The radiation detection and purification device according to claim 5, characterized in that: The radiation detector (103a) comprises a Nal crystal gamma probe (103c), an a-β surface contamination measuring instrument (103d), a radiation alarm (103e) and a control component (103f). The Nal crystal gamma probe (103c) is arranged at the lower end of the detection platform (101). The a and β surface contamination measurements are arranged in the detection space (102a). It is worth noting that the Nal crystal gamma probe (103c) is arranged in a cross shape at the lower end of the detection platform (101) inside the detection space (102a). There are 72 a-β surface contamination detectors in total, which use large-area plastic scintillator detectors. The upper and lower layers are each assembled from 36 detectors with an area of ​​100 cm2. One group of 36 detectors with an area of ​​100 cm2 are arranged on the storage surface in a 6×6 distribution. The other group is divided into two parts and installed above the detection platform (101) in a double-door manner. Each part is distributed in a 3×6 manner.

7. The radiation detection and purification device according to claim 6, characterized in that: The a-β surface contamination measuring instrument (103d) is divided into two groups to form two detection doors that open opposite to each other, and each detection door is connected to the detection platform (101) via a flip cover.

8. The radiation detection and purification device according to claim 7, characterized in that: The Nal crystal gamma probe (103c) and the a-beta surface contamination measuring instrument (103d) are connected to the radiation alarm component (103e) and the control component (103f) via a communication cable.

9. The radiation detection and purification device according to claim 8, characterized in that: The cleaning liquid sprayer (201) is used to perform physical and chemical treatment on the cleaning liquid in the radioactive decontamination cleaning liquid water tank (203), and the cleaning liquid spray head (202) evenly sprays the treated cleaning liquid on the surface of the object to be tested.

10. The radiation detection and purification device according to claim 9, characterized in that: The detection platform (101) is also provided with front and rear positioning members (101a) and a left positioning member (101b), and the front and rear positioning members (101a) are controlled by cylinders.

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