Automatic high-strength concrete hole opening device and method for radioactive site

Abstract

A kind of automatic opening device and method of high-strength concrete in radioactive site, including device base, device column, opening motor, device spindle, tool magazine;Base includes base body, datum plane, electromagnet, lifting eye screw, coarse guide device, positioning pin, the upper surface of base body is datum plane;Base body side is provided with electromagnet, coarse guide device and positioning pin;Device column supports concrete opening device spindle and spindle auxiliary support;Device column includes column lifting motor, speed reducer, cylindrical slide rail, T-type screw;Column lifting motor is set on the upper portion of device column, column lifting motor lower side is connected with speed reducer, speed reducer is connected with T-type screw, cylindrical slide rail is set on device column, drives device spindle to lift.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear facility decommissioning. Specifically, it relates to an automatic high-strength concrete hole opening device and method for radioactive sites. BACKGROUND

[0002] Most domestic nuclear facilities were built in the 1950s and 1960s. Due to the influence of the conditions and technology at that time, the medium and high-level waste liquid generated in nuclear activities is generally stored in a large volume storage tank and buried underground. It is generally stored in a stainless steel tank in a high-strength (containing steel bars) concrete room with a thickness of about 1600mm. The built radioactive waste liquid temporary storage tank lacks the necessary means for detecting the tank body, which makes it impossible to accurately evaluate the corrosion degree of the tank and poses a leakage risk. The tank design reserves fewer holes and is deeply buried underground, which cannot meet the placement needs of detection and decommissioning tools. Therefore, an automatic hole opening device for high-strength concrete in radioactive sites is needed to place detection and decommissioning tools underground to carry out subsequent decommissioning and detection work. SUMMARY

[0003] The purpose of the present application is to provide an automatic high-strength (containing steel bars) concrete hole opening device and method for radioactive sites, which can place detection and decommissioning tools for radioactive waste liquid storage tanks underground, and subsequently carry out detection and decommissioning work on radioactive waste liquid storage tanks, thereby speeding up the decommissioning process of nuclear facilities.

[0004] The technical solution of the present application is as follows: an automatic high-strength concrete hole opening device for radioactive sites, comprising a device base, a device column, a hole opening motor, a device main shaft, and a tool magazine.

[0005] The base comprises a base body, a reference surface, an electromagnet, a lifting ring screw, a coarse guide device, and a positioning pin. The upper surface of the base body is the reference surface. The electromagnet, coarse guide device, and positioning pin are arranged on the side surface of the base body.

[0006] The device column supports the concrete hole opening device main shaft and auxiliary support. The device column comprises a column lifting motor, a speed reducer, a cylindrical slide rail, and a T-shaped lead screw. The column lifting motor is arranged at the upper part of the device column. The column lifting motor is connected to the speed reducer on the lower side. The speed reducer is connected to the T-shaped lead screw. The cylindrical slide rail is arranged on the device column to drive the device main shaft to lift.

[0007] The hole opening motor is installed directly above the device main shaft. The upper end and lower end of the device main shaft are respectively provided with a main shaft support sleeve and a main shaft auxiliary support, and the device main shaft is fixed through the main shaft support sleeve.

[0008] The tool magazine comprises a tool magazine moving motor, a tool, a rotary support, and a cylindrical guide rail. The tool magazine is installed on the device base. The tool magazine moving motor is connected to the rotary support. The rotary support is installed on the cylindrical guide rail. The outer periphery of the tool magazine is provided with the tool.

[0009] Six adjusting feet are arranged below the base body.

[0010] Four electromagnets are arranged on both sides of the base body.

[0011] Two lifting ring screws are arranged above the device column.

[0012] It also includes a waste bucket.

[0013] It also includes a control system that controls the opening motor.

[0014] An automatic opening method for high-strength concrete in a radioactive site, comprising the following steps:

[0015] a: Determine the range of the opening position;

[0016] b: The device main shaft and the tool magazine move to the tool changing position to change the tool for the first time;

[0017] c: The tool magazine returns to the original position;

[0018] d: Start the opening motor, set the first opening depth, and lower the device main shaft to start the first opening;

[0019] e: After the first opening is completed, the opening motor stops rotating, and the device main shaft returns to the tool changing position;

[0020] f: The tool magazine enters the tool changing position to change the tool for the second time;

[0021] g: Start the opening motor, set the second opening depth, and lower the device main shaft for the second opening;

[0022] h: After the second opening is completed, the opening motor stops rotating, and the device main shaft returns to the tool changing position;

[0023] i: The tool magazine enters the tool changing position to change the tool for the third time;

[0024] j: Start the opening motor, set the third opening depth, and start lowering the device main shaft to start the third opening;

[0025] k: The opening motor stops rotating, and the device main shaft returns to the tool changing position;

[0026] l: The tool magazine enters the tool changing position to change the tool for the fourth time;

[0027] m: Start the opening motor, and the device main shaft starts to lower to start opening the hole in the center of the remaining depth of concrete;

[0028] n: After the opening is completed, the opening motor stops rotating, and the device main shaft returns to the tool changing position;

[0029] o: hook up the remaining part of the concrete that needs to be removed;

[0030] p: the tool magazine enters the tool changing position, and the fifth tool changing is performed;

[0031] q: the opening motor is started, and after the rotating speed is stabilized, the device spindle starts to descend, and the remaining depth of the concrete is expanded.

[0032] In step k, when the cumulative opening depth reaches 1300mm, the opening motor stops rotating.

[0033] Further comprising step r: after the hole expansion is completed, the tool magazine enters the tool changing position, and the device spindle unloads the tool.

[0034] Further comprising step s: the mechanical structure removes the last remaining concrete to avoid falling and injuring the radioactive waste liquid tank. All components return to the original position.

[0035] The significant effect of the present application is:

[0036] (1) The present application performs the opening operation of the high-strength (containing steel bars) concrete in the radioactive place through remote control, and the opening depth can reach 1600mm, avoiding the operation personnel from entering the high-radiation place to operate, and effectively reducing the personnel exposure dose.

[0037] (2) Through the present application, the subsequent detection and decommissioning of the radioactive waste liquid tank can be carried out, and the nuclear facility decommissioning process is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 The present application is a schematic diagram;

[0039] In the figure: 1, column lifting motor; 2, speed reducer; 3, lifting ring screw; 4, cylindrical slide rail; 5, T-shaped lead screw; 6, device column; 7, main shaft auxiliary support; 8, cylindrical guide rail; 9, waste barrel; 10, electromagnet; 11, rotary support; 12, positioning pin; 13, tool magazine moving motor; 14, tool; 15, tool magazine; 16, reference surface; 17, device main shaft; 18, main shaft support sleeve; 19, opening motor; 20, coarse guide device; 21, leveling foot; 22, base body. DETAILED DESCRIPTION

[0040] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application, and it is understood that similar changes in form and substitution of equivalent elements can be made by those skilled in the art without departing from the spirit and scope of the present application, and therefore the present application is not limited to the specific implementation disclosed below.

[0041] The terminology used in this disclosure of one or more embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of one or more embodiments of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0042] It should be understood that, although the terms first, second, etc. can be used herein to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, a first can also be referred to as a second, and similarly, a second can also be referred to as a first, without departing from the scope of one or more embodiments of the disclosure.

[0043] As shown in Figure 1 An automatic high-strength concrete hole opening device for radioactive sites includes a device base, a device column 6, a hole opening motor 19, a device main shaft 17, a tool magazine 15, and a control system.

[0044] The base is mainly used for installing the high-strength (containing steel bars) concrete hole opening device for radioactive sites on the ground, and determining the approximate position of the concrete hole opening. It includes a base body 22, a reference surface 16, electromagnets 10, adjusting feet 21, lifting eye screws 3, a coarse guide device 20, and positioning pins 12. The upper surface of the base body 22 is the reference surface 16. Six adjusting feet 21 are arranged below the base body 22 to adjust the levelness of the upper surface of the base, ensuring the levelness of the base and the perpendicularity of the pre-hole. Four electromagnets 10 are arranged on both sides of the base body 22. The electromagnets 10 are used to fix the concrete hole opening device after being electrified. The coarse guide device 20 and the positioning pins 12 are both used for positioning the hole opening device on the base body. First, the coarse guide device 20 is used for positioning within a certain range. As the hole opening device gradually descends, it slides into the three positioning pins 12.

[0045] The device column 6 is used to support the main shaft 17 of the concrete hole opening device and the auxiliary support 7 of the main shaft. It includes lifting eye screws 3, a column lifting motor 1, a speed reducer 2, a cylindrical slide rail 4, and a T-shaped lead screw 5. Two lifting eye screws 3 are arranged directly above the device column 6 to facilitate the hoisting of the device column 6. The column lifting motor 1 is arranged on the upper part of the device column 6. The lower part of the column lifting motor 1 is connected to the speed reducer 2, which is connected to the T-shaped lead screw 5. The cylindrical slide rail 4 is arranged on the bracket of the device column 6 to ensure the hole opening accuracy and drive the device main shaft 17 to ascend and descend.

[0046] The opening motor 19 is installed above the device spindle 17 to provide the feeding force for the opening action of the concrete opening device. The upper end and lower end of the device spindle 17 are provided with a spindle support sleeve 18 and a spindle auxiliary support 7, respectively. The device spindle 17 is fixed by the spindle support sleeve 18, and the spindle auxiliary support 7 is used to assist the support of the device spindle 17 at the initial opening stage to prevent the device spindle 17 from swinging due to its excessive length.

[0047] Since the object to be opened is high-strength (containing steel bars) concrete, the opening depth needs to reach 1600mm, and the cut concrete block cannot fall to avoid injuring the radioactive waste liquid tank. Therefore, the concrete opening device needs to use different cutters to complete. The tool magazine 15 is mainly used for replacing the cutter 14 of the concrete opening device, which has different types of cutters. The tool magazine 15 includes a tool magazine moving motor 13, a cutter 14, a rotary support 11, and a cylindrical guide rail 8. The tool magazine 15 is installed on the device base, and the automatic cutter replacement is realized by using the tool magazine moving motor 13 and the rotary support 11.

[0048] The method for opening (opening a hole with a depth of 1600mm) high-strength (containing steel bars) concrete in a radioactive site includes the following steps:

[0049] a: After installing the high-strength concrete opening device on the device base, determine the approximate range of the opening position;

[0050] b: The device spindle 17 and the tool magazine 15 move to the cutter replacement position to replace the cutter 14 for the first time;

[0051] c: The tool magazine 15 retreats to the original position;

[0052] d: Start the opening motor 19, set the first opening depth of the opening device, and after the speed stabilizes, the device spindle 17 starts to descend to start opening the first hole;

[0053] e: After the first opening is completed, the opening motor 19 stops rotating, and the device spindle 17 retreats to the cutter replacement position;

[0054] f: The tool magazine 15 enters the cutter replacement position to replace the cutter 14 for the second time;

[0055] g: Start the opening motor 19, set the second opening depth of the opening device, and after the speed stabilizes, the device spindle 17 starts to descend to start opening the second hole;

[0056] h: After the second opening is completed, the opening motor 19 stops rotating, and the device spindle 17 retreats to the cutter replacement position;

[0057] i: The tool magazine 15 enters the cutter replacement position to replace the cutter 14 for the third time;

[0058] j: start the drilling motor 19, set the third drilling depth, and after the speed is stable, the main shaft 17 starts to descend and the third hole is drilled;

[0059] k: when the cumulative drilling depth reaches 1300mm, the drilling motor 19 stops rotating, and the main shaft 17 retreats to the tool changing position;

[0060] l: the tool magazine 15 enters the tool changing position and the fourth tool changing is performed;

[0061] m: start the drilling motor 19, and after the speed is stable, the main shaft 17 starts to descend and drills a hole in the center of the remaining depth of concrete;

[0062] n: after the drilling is completed, the drilling motor 19 stops rotating, and the main shaft 17 retreats to the tool changing position;

[0063] o: the remaining concrete is hooked by the mechanical structure;

[0064] p: the tool magazine 15 enters the tool changing position and the fifth tool changing is performed;

[0065] q: start the drilling motor 19, and after the speed is stable, the main shaft 17 starts to descend and expands the remaining depth of concrete;

[0066] r: after the expansion is completed, the tool magazine 15 enters the tool changing position, and the main shaft 17 unloads the tool;

[0067] s: the last remaining concrete is removed by the mechanical structure to prevent falling and damaging the radioactive waste liquid tank. All parts retreat to the original position

[0068] The above only describes the preferred embodiments of the patent and does not limit the patent. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the patent should be included in the protection scope of the patent.

[0069] It should be noted that for the foregoing method embodiments, in order to facilitate description, they are all described as a series of action combinations, but those skilled in the art should know that the present application is not limited by the action sequence described, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0070] In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0071] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. Alternative embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings of the application. The application selects and describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application.

Claims

1. An automatic hole-drilling device for high-strength concrete in radioactive sites, characterized in that: Includes device base, device column (6), perforated motor (19), device spindle (17), and tool magazine (15); The base includes a base body (22), a reference surface (16), an electromagnet (10), a lifting eye screw (3), a coarse guide device (20), and a positioning pin (12). The upper surface of the base body (22) is the reference surface (16); the electromagnet (10), the coarse guide device (20), and the positioning pin (12) are provided on the side of the base body (22). The device column (6) supports the main shaft (17) of the concrete drilling device and the auxiliary support (7) of the main shaft; the device column (6) includes a column lifting motor (1), a reducer (2), a cylindrical slide rail (4), and a T-shaped screw (5); the column lifting motor (1) is located on the upper part of the device column (6), the reducer (2) is connected to the lower side of the column lifting motor (1), the reducer (2) is connected to the T-shaped screw (5), and the cylindrical slide rail (4) is located on the device column (6) to drive the device main shaft (17) to lift; The perforated motor (19) is installed directly above the main shaft (17) of the device. The upper and lower ends of the main shaft (17) of the device are respectively provided with a main shaft support sleeve (18) and a main shaft auxiliary support (7), and the main shaft (17) of the device is fixed by the main shaft support sleeve (18). The tool magazine (15) includes a tool magazine moving motor (13), a cutting tool (14), a rotary support (11), and a cylindrical guide rail (8). The tool magazine (15) is mounted on the device base. The tool magazine moving motor (13) is connected to the rotary support (11). The rotary support (11) is mounted on the cylindrical guide rail (8). The tool magazine (15) is surrounded by cutting tools (14). The hole-opening method of the automatic hole-opening device for high-strength concrete in radioactive sites includes the following steps: a: Determine the range of the opening location; b: The device spindle (17) and tool magazine (15) move to the tool changing position to perform the first tool change (14); c: Tool magazine (15) returns to its original position; d: Start the hole-opening motor (19), set the first hole-opening depth, and the main shaft (17) of the device descends to start opening the first hole; e: After the first hole is opened, the hole opening motor (19) stops rotating and the main shaft (17) of the device returns to the tool changing position; f: The tool magazine (15) enters the tool change position and performs the second tool change (14); g: Start the hole-opening motor (19), set the second hole-opening depth, and the device spindle (17) descends to open the hole for the second time; h: After the second hole is opened, the hole opening motor (19) stops rotating and the main shaft (17) of the device returns to the tool changing position; i: The tool magazine (15) enters the tool change position and performs the third tool change (14); j: Start the hole-opening motor (19), set the third hole-opening depth, and the main shaft (17) of the device begins to descend to start opening the third hole; k: The hole-opening motor (19) stops rotating, and the main shaft (17) of the device retracts to the tool changing position; l: The tool magazine (15) enters the tool change position and performs the fourth tool change (14); m: Start the drilling motor (19), the main shaft (17) of the device begins to descend, and the hole is started in the center of the remaining depth of concrete; n: After the hole is opened, the hole opening motor (19) stops rotating and the main shaft (17) of the device returns to the tool changing position; o: Hook the remaining concrete that needs to be removed; p: The tool magazine (15) enters the tool change position and performs the fifth tool change (14); q: Start the drilling motor (19), and after the speed stabilizes, the main shaft (17) of the device begins to descend, starting to expand the remaining depth of concrete; r: After the reaming is completed, the tool magazine (15) enters the tool changing position, and the spindle (17) of the device removes the tool; s: All components return to their original positions; In step k, when the cumulative hole depth reaches 1300mm, the hole-opening motor (19) stops rotating.

2. The automatic hole-drilling device for high-strength concrete in radioactive sites according to claim 1, characterized in that: Six adjustable feet (21) are provided below the base body (22).

3. The automatic hole-drilling device for high-strength concrete in radioactive sites according to claim 1, characterized in that: Four electromagnets (10) are installed on both sides of the base body (22).

4. The automatic hole-drilling device for high-strength concrete in radioactive sites according to claim 1, characterized in that: Two eye bolts (3) are installed directly above the device column (6).

5. The automatic hole-drilling device for high-strength concrete in radioactive sites according to claim 1, characterized in that: It also includes waste bins (9).

6. The automatic hole-drilling device for high-strength concrete in radioactive sites according to claim 1, characterized in that: It also includes a control system that controls the hole-opening motor (19).

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