Accurate distributing device for uranium plutonium oxide fuel powder

Abstract

A precise distributing device for uranium plutonium oxide fuel powder comprises a material container, a distributing sliding table, a distributing lifting device and a distributing turnover device. Wherein the material distribution sliding table and the material distribution lifting device are both mounted on a base of the device and move on a guide groove of the base through a sliding block; the material distributing and overturning device rotates through a rotary table installed on the base. A butterfly valve and a star-shaped distributing valve are mounted on an outlet pipeline of the material container, and the star-shaped distributing valve is mounted in the middle of the butterfly valve; the outlet pipeline of the material container is in butt joint with the transfer container, and the AB valve is located at the butt joint position of the outlet pipeline of the material container and the transfer container.

Description

Technical Field

[0001] This patent relates to the field of nuclear fuel element manufacturing technology, and specifically to a precise material distribution device for uranium-plutonium oxide fuel powder. Background Art

[0002] During the production process, the fuel powder needs to be accurately divided to ensure the accuracy of subsequent batching. Since the fuel powder contains a large amount of radioactive elements such as uranium and plutonium, which can cause harm to the human body, the automatic and accurate division of uranium-plutonium oxide fuel powder is a technical challenge for the MOX fuel element production line.

[0003] Based on this, the patent of the present invention is a precise material distribution device for uranium-plutonium oxide fuel powder. It can achieve precise material distribution of uranium-plutonium oxide fuel powder. During the material distribution process, there is no visible powder leakage and no obvious retention. Summary of the invention

[0004] The purpose of the present invention is to design and manufacture a precise material distribution device for uranium-plutonium oxide fuel powder, so that the precise material distribution of uranium-plutonium oxide fuel powder can be achieved during the powder processing process. In the material distribution process, the sealing has no powder leakage and no obvious retention, the material distribution docking device operates stably and the operation process has no interference, and the matching weighing device can provide real-time feedback on the feeding effect, so as to achieve the purpose of automatically completing the precise material distribution of uranium-plutonium oxide fuel powder.

[0005] The technical scheme of the present invention is as follows: a precise material distribution device for uranium-plutonium oxide fuel powder, comprising a material container, a material distribution slide, a material distribution lifting device, and a material distribution overturning device; wherein the material distribution slide and the material distribution lifting device are both installed on the base of the device, and the sliding block moves on the guide groove of the base; the material distribution overturning device rotates through a turntable installed on the base; a butterfly valve and a star-shaped material distribution valve are installed on the outlet pipeline of the material container, and the star-shaped material distribution valve is installed in the middle of the butterfly valve; the outlet pipeline of the material container is connected to the transfer container, and the AB valve is located at the connection position between the outlet pipeline of the material container and the transfer container.

[0006] The shaft passes through the butterfly valve and the star-shaped distributing valve, and both the butterfly valve and the star-shaped distributing valve can rotate around the shaft.

[0007] It also includes an AB valve plate cylinder, which drives the AB valve to open and close.

[0008] It also includes an AB valve locking cylinder, and after the material container and the transfer container are docked, the AB valve locking cylinder is locked.

[0009] The material container is also equipped with a cover-tightening cylinder.

[0010] The material container is also equipped with a vibrating cylinder.

[0011] The discharge AB valve, butterfly valve and star-shaped dispensing valve are located on the same axis.

[0012] The material distribution slide and the material distribution lifting device respectively realize the horizontal movement and vertical movement of the device.

[0013] The butterfly valve opening and closing cylinder drives the butterfly valve to rotate; the star-shaped dispensing valve turning cylinder drives the star-shaped dispensing valve to turn.

[0014] Accurate material dispensing can be achieved by controlling the number of flips of the star-shaped dispensing valve.

[0015] The remarkable effects of the present invention are:

[0016] (1) It can automatically complete mechanical steps such as feeding, dividing and discharging, effectively reducing the radiation damage to operators in radioactive environments;

[0017] (2) The device adopts a nested design of butterfly valve and star-shaped material distribution valve, which has both discharge and precise material distribution functions;

[0018] (3) The device has high safety and reliability, and the butterfly valve is easy to open and close, with low fluid resistance. The star-shaped material distribution valve operates stably and distributes materials evenly. It has the characteristics of good protection and easy repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the precise material distribution device for uranium-plutonium oxide fuel powder;

[0020] Figure 2 This is a side view of the precise distribution device for uranium-plutonium oxide fuel powder;

[0021] Figure 3 A top view of the precise distribution device for uranium-plutonium oxide fuel powder;

[0022] Figure 4 It is a schematic diagram of a butterfly valve and a star-type material distribution valve;

[0023] Figure 5 It is the side view of butterfly valve and star-type material distribution valve;

[0024] In the figure: 1-covering cylinder; 2-material container; 3-butterfly valve; 4-butterfly valve opening and closing cylinder; 5-AB valve; 6-AB valve locking cylinder; 7-material distribution slide; 8-material distribution lifting; 9-vibration cylinder; 10-material distribution flip; 11-star-shaped material distribution valve; 12-star-shaped material distribution valve flip cylinder; 13-AB valve plate cylinder; 14-shaft; 15-base DETAILED DESCRIPTION

[0025] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0026] The terms used in one or more embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present application. The singular forms of "a", "said" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0027] It should be understood that, although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0028] like Figure 1-3 As shown, a precise material distribution device for uranium-plutonium oxide fuel powder includes a material container 2, a material distribution slide 7, a material distribution lifting device 8, and a material distribution flip 10; wherein the material distribution slide 7 and the material distribution lifting device 8 are both installed on the base 15 of the device, and the lateral movement and vertical movement of the device are respectively realized by the movement of the slider on the guide groove of the base 15; the material distribution flip device 10 realizes the flipping and positioning of the entire material distribution device by rotating the turntable installed on the base 15, so as to dock with the transfer container; the outlet of the material container 2 is located at Figure 2 The lower end of Figure 2 A capping cylinder 1 is installed at the upper end, a butterfly valve 3 and a star-shaped dividing valve 11 are installed on the outlet pipeline of the material container 2, the star-shaped dividing valve 11 is installed in the middle of the butterfly valve 3, and the shaft 14 runs through the butterfly valve 3 and the star-shaped dividing valve 11, the butterfly valve 3 and the star-shaped dividing valve 11 can both rotate around the shaft 14, and accurate dividing is achieved by controlling the number of flipping times of the star-shaped dividing valve 11, and the butterfly valve opening and closing cylinder 4 drives the butterfly valve 3 to rotate, thereby realizing the opening and closing of the butterfly valve 3; the star-shaped dividing valve flipping cylinder 12 drives the star-shaped dividing valve 11 to flip, thereby realizing the accurate dividing function of the star-shaped dividing valve 11; the outlet pipeline of the material container 2 is connected to the transfer container, and the AB valve 5 is located at the connection position between the outlet pipeline of the material container 2 and the transfer container, and the AB valve 5 ensures the airtightness of the unloading process; and the AB valve plate cylinder 13 drives the opening and closing of the AB valve 5;

[0029] It also includes an AB valve locking cylinder 6. After the material container 2 and the transfer container are docked, the AB valve locking cylinder 6 is locked to ensure that there is no powder leakage during the unloading process, and it can maintain the current position in the event of a power outage or other abnormal conditions to prevent it from moving; the material container 2 has a covering cylinder 1, which tightly connects the material container 2 to the unloading pipeline, thereby preventing powder leakage during the separation process. The material container 2 is also equipped with a vibrating cylinder 9, which makes the material container 2 vibrate, thereby reducing the material retention in the material container 2 during the separation process.

[0030] The present invention realizes accurate material distribution by nesting butterfly valves and star-shaped material distribution valves on the same horizontal plane, so that the device has the function of accurately distributing materials when re-distribution is needed after the material distribution is completed. The discharging AB valve 5, the butterfly valve 3, and the star-shaped material distribution valve 11 are designed on the same axis. This design is conducive to the overall rotation of the material distribution device and reduces the retention volume, and there is no need to install a lifting and flipping device. In addition, the butterfly valve 3 and the star-shaped material distribution valve 11 are nested on the same horizontal plane: the material distribution device has both the discharging and accurate material distribution functions, which reduces the use space and operation steps of the device and shortens the time required for the accurate material distribution process.

[0031] Specific:

[0032] Material distribution slide 7: The lateral movement of the device is achieved through the movement of the slide on the guide groove;

[0033] Material distribution and lifting device 8: The vertical movement of the device is realized by the movement of the slider on the guide groove;

[0034] Covering cylinder 1: When the material distribution slide 7 and the material distribution lifting device 8 move to the material distribution preparation position, the material container 2 is placed in the material distribution covering position, and the covering cylinder 1 is closed to ensure the tight connection between the material container 2 and the device to prevent powder leakage;

[0035] The material dividing and turning device 10 is turned and positioned by rotating the turntable. The device is rotated 180° as a whole. After the rotation, the mouth of the material container 2 faces downward, which is convenient for docking with the transfer container.

[0036] AB valve locking cylinder 6: After the material container 2 and the transfer container are docked, the AB valve locking cylinder 6 is locked to ensure that there is no powder leakage during the unloading process, and it can maintain the current position in the event of power failure or other abnormal conditions to prevent it from moving;

[0037] AB valve plate cylinder 13: drives the valve plate to rotate through the pneumatic force provided by the pneumatic actuator, thereby realizing the opening and closing operation of the AB valve 5;

[0038] AB valve 5: controls the unloading process of the transfer container and the device to ensure the airtightness of the unloading process;

[0039] Butterfly valve 3: realizes the overall discharging of the device without precise material distribution;

[0040] Star-shaped material dispensing valve 11: Accurately control the material dispensing accuracy and improve production efficiency:

[0041] Butterfly valve opening and closing cylinder 4: The pneumatic force provided by the pneumatic actuator drives the disc plate to rotate, thereby realizing the opening and closing operation of the butterfly valve 3;

[0042] The star-shaped distributing valve flipping cylinder 12 drives the star-shaped distributing valve 11 to flip through the pneumatic force provided by the pneumatic actuator, thereby realizing the precise distributing function of the star-shaped distributing valve 11;

[0043] Vibrating cylinder 9: After the material container 2 and the transfer container are docked, the vibrating cylinder 9 is turned on during the unloading process. By controlling the change in air pressure, the piston in the cylinder produces periodic movement, thereby driving the vibration of the material container 2. This vibration can effectively improve the fluidity of the material and improve production efficiency.

[0044] The above description is only a preferred embodiment of this patent and is not intended to limit this patent. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this patent should be included in the scope of protection of this patent.

[0045] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0046] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0047] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The optional embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well.

Claims

1. A precise material distribution device for uranium-plutonium oxide fuel powder, characterized in that: The invention comprises a material container (2), a material distribution slide (7), a material distribution lifting device (8), and a material distribution turning device (10); wherein the material distribution slide (7) and the material distribution lifting device (8) are both mounted on a base (15) of the device and are moved by the movement of a slide block on a guide groove of the base (15); the material distribution turning device (10) is rotated by a turntable mounted on the base (15); a butterfly valve (3) and a star-shaped material distribution valve (11) are mounted on the outlet pipeline of the material container (2), and the star-shaped material distribution valve (11) is mounted in the middle of the butterfly valve (3); the outlet pipeline of the material container (2) is butt-jointed with a transfer container, and the AB valve (5) is located at the butt-jointed position between the outlet pipeline of the material container (2) and the transfer container.

2. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The shaft (14) passes through the butterfly valve (3) and the star-shaped material distribution valve (11), and the butterfly valve (3) and the star-shaped material distribution valve (11) rotate around the shaft (14).

3. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: It also includes an AB valve plate cylinder (13), which drives the AB valve (5) to open and close.

4. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: It also includes an AB valve locking cylinder (6), and after the material container (2) and the transfer container are docked, the AB valve locking cylinder (6) is locked.

5. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The material container (2) is also equipped with a cover-tightening cylinder (1).

6. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The material container (2) is also equipped with a vibrating cylinder (9).

7. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The discharge AB valve (5), the butterfly valve (3) and the star-shaped material distribution valve (11) are located on the same axis.

8. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The material distribution slide 7 and the material distribution lifting device 8 respectively realize the lateral movement and vertical movement of the device.

9. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: The butterfly valve opening and closing cylinder 4 drives the butterfly valve 3 to rotate; the star-shaped material distribution valve turning cylinder 12 drives the star-shaped material distribution valve 11 to turn.

10. The precise material distribution device for uranium-plutonium oxide fuel powder according to claim 1, characterized in that: Accurate material distribution is achieved by controlling the number of flipping of the star-shaped material distribution valve 11.

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