A homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements

Abstract

The present invention relates to the technical field of graphite powder preparation devices, and specifically discloses a homogenizing device for nuclear graphite powder for high-temperature gas-cooled reactor nuclear fuel elements, comprising a base, a bottom plate fixedly mounted on the upper surface of the base, the bottom plate being arranged in a circular plate shape, an outer frame body being slidably sleeved on the outer side of the bottom plate, the outer frame body being arranged in a circular tube shape, a force-bearing plate fixedly connected to the outer surface of the bottom of the outer frame body, a hydraulic cylinder symmetrically fixedly connected to the lower surface of the force-bearing plate, a top cover being buckled at the top end of the outer frame body, and a feed port being penetrated and opened on the upper surface of the top cover. The present invention enables the first homogenizing plate and the second homogenizing plate to be in an extrusion friction state from the beginning of contact to the separation, thereby achieving a grinding effect on the nuclear graphite powder, grinding and crushing the lumps doped in the nuclear graphite powder, so that the nuclear graphite powder is further ground and processed during the homogenization process, and the quality of the nuclear graphite powder is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of graphite powder preparation devices, in particular to a homogenizing device for nuclear graphite powder used in high temperature gas-cooled reactor nuclear fuel elements. Background Art

[0002] Graphite is an allotrope of carbon. It is a gray-black, opaque solid with stable chemical properties, corrosion resistance, and is not easy to react with acids, alkalis and other agents. Natural graphite comes from graphite deposits, and can also be made into artificial graphite from petroleum coke, asphalt coke, etc. through a series of processes. Graphite burns in oxygen to produce carbon dioxide, which can be oxidized by strong oxidants such as concentrated nitric acid and potassium permanganate. It can be used as an anti-wear agent and lubricant. High-purity graphite is used as a neutron moderator in atomic reactors. It can also be used to make crucibles, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, arc furnaces, arc lamps, pencil refills, etc. Graphite powder has good high temperature resistance, thermal conductivity, electrical conductivity, lubrication and other properties. It is an important resource indispensable for the cultivation and development of emerging industries and the transformation and upgrading of traditional industries. Nuclear graphite is mainly used as graphite materials in the nuclear industry. Among them, nuclear graphite is a branch of graphite material developed in the early 1940s in response to the need to build nuclear fission reactors. It is used as a moderator, reflector and structural material in production reactors, gas-cooled reactors and high-temperature gas-cooled reactors.

[0003] Nuclear graphite powder needs to be homogenized before use. Nuclear graphite powder is obtained by crushing nuclear graphite. The requirements for nuclear graphite powder when using it are relatively stringent. While ensuring that the nuclear graphite powder is fine enough, it is also necessary to ensure that the nuclear graphite powder is relatively uniform. Therefore, a nuclear graphite powder homogenization device is urgently needed to complete the homogenization of the nuclear graphite powder. Summary of the invention

[0004] The present invention provides a homogenizing device for nuclear graphite powder used in high temperature gas-cooled reactor nuclear fuel elements, which solves the problems mentioned in the above background technology.

[0005] To achieve the above purpose, the present invention is implemented by the following technical scheme: a homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements, comprising a base, a bottom plate fixedly mounted on the upper surface of the base, the bottom plate being arranged in a circular plate shape, an outer frame body being slidably sleeved on the outer side of the bottom plate, the outer frame body being arranged in a circular tube shape, a force-bearing plate fixedly connected to the outer surface of the bottom of the outer frame body, a hydraulic cylinder symmetrically fixedly connected to the lower surface of the force-bearing plate, the bottom of the hydraulic cylinder being fixedly mounted on the upper surface of the edge of the bottom plate, a top cover being buckled on the top of the outer frame body, a feed port being penetrated and opened on the upper surface of the top cover, and further comprising:

[0006] A homogenizing mechanism, the homogenizing mechanism is arranged inside the outer frame, and the homogenizing mechanism is used to stir and homogenize the nuclear graphite powder;

[0007] An adjusting mechanism, the adjusting mechanism is fixedly mounted on the homogenizing mechanism and is also disposed inside the outer frame. The adjusting mechanism is used to adjust the stirring height and range and is also used to cooperate with the homogenizing mechanism to complete stirring and homogenization;

[0008] The swivel mount mechanism comprises a motor, the motor is fixedly mounted on the upper surface of the top cover, the output end of the motor is rotatably connected to a swivel rod, the swivel rod is arranged inside the outer frame, the bottom of the swivel rod is rotatably connected to the upper surface of the bottom plate, the upper end outer surface of the swivel rod is fixedly connected to a mounting ring, the outer surface of the mounting ring is symmetrically fixedly connected to a mounting tube, the inner part of the mounting tube away from the mounting ring is elastically slidably connected to a first connecting rod, the end of the first connecting rod away from the mounting tube is fixedly connected to a first supporting rod, wherein the first connecting rod and the first supporting rod are arranged perpendicular to each other, the bottom of the first supporting rod is fixedly connected to a first stabilizing frame, and the outer surface of the first stabilizing frame is fixedly connected to a first averaging plate;

[0009] Preferably, the first homogenizing plate is configured to be a semicircular tube type, the first homogenizing plate is configured to be bent toward one side of the outer frame, the bottom of the rotating rod is rotatably connected to a rotating wheel, the rotating wheel is fixedly mounted on the upper surface of the bottom plate through a connecting rod, and the rotating wheel is rotatably connected to a rotating tube at a side away from the rotating rod;

[0010] Preferably, the bottom outer surface of the rotating tube is rotatably connected with an isolating ring, the isolating ring is fixedly connected to the upper surface of the bottom plate, the lower inner surface of the rotating tube is fixedly connected with a bearing ring, the bearing ring is sleeved on the bottom outer surface of the rotating rod, the upper surface of the bearing ring is elastically connected with a driving tube through a spring, and the driving tube is slidably connected to the inner surface of the rotating tube up and down;

[0011] Preferably, the adjustment mechanism includes a covering ring, the bottom surface of which is fixedly connected to the upper surface of the driving tube, the interior of the covering ring is arranged to be hollow, the inner side of the covering ring is arranged to be open, a driving block is elastically and slidably connected inside the covering ring, five driving blocks are arranged at fixed intervals around the central axis, the inner surface of the driving block is threadedly connected to the outer surface of the rotating rod, and the first equalizing plate and the second equalizing plate are in an extrusion state from the beginning of contact to the separation, at this time, the first grinding roller and the second grinding roller installed on the first equalizing plate and the second equalizing plate can make the first grinding roller and the second grinding roller come into contact with each other.

[0012] Preferably, a second connecting rod is symmetrically fixedly connected to the top outer surface of the driving tube, and an end of the second connecting rod away from the driving tube is fixedly connected to the second support rod, wherein the second connecting rod and the second support rod are arranged perpendicular to each other, and the bottom end of the second support rod is fixedly connected to the second stabilizing frame, and the outer surface of the second stabilizing frame is fixedly connected to the second homogenizing plate, and the second homogenizing plate is arranged to be semicircular. The second homogenizing plate is arranged to be bent toward one side of the rotating tube. When it is necessary to homogenize the nuclear graphite powder, the mixture of nuclear graphite powder can be placed in the outer frame through the feed port on the top cover, and the motor is started after the placement is completed. When the motor starts, it will drive the rotating rod to rotate, and when the rotating rod rotates, it will drive the mounting tube on the mounting ring to rotate, and when the mounting tube rotates, it will pass through the first connecting rod and the first support The support rod drives the first stabilizing frame to rotate, so that the first homogenizing plate starts to rotate to stir and homogenize the nuclear graphite powder in the outer frame. At the same time, when the rotating rod starts to rotate, it will drive the rotating wheel at the bottom to start rotating, and then the rotating tube connected to the rotating wheel starts to rotate, and rotates in the opposite direction to the rotating rod. When the rotating tube rotates, it will drive the driving tube inside it to rotate, that is, finally the second homogenizing plate is driven to rotate through the second connecting rod and the second support rod, that is, the first homogenizing plate and the second homogenizing plate are driven to start rotating in opposite directions at the same time by starting the motor, and then the nuclear graphite powder is stirred and homogenized by the first homogenizing plate and the second homogenizing plate rotating in opposite directions. At the same time, the first homogenizing plate and the second homogenizing plate will gradually contact each other during the rotation, and the contact starts from the edges of the first homogenizing plate and the second homogenizing plate.

[0013] Preferably, a first mounting groove is formed through the outer surface of the first equalizing plate, wherein five first mounting grooves are formed at fixed intervals around the central axis, and a first grinding roller is rotatably connected in the first mounting groove. A second mounting groove is formed through the outer surface of the second equalizing plate, wherein five second mounting grooves are also formed, and a second grinding roller is rotatably connected in the second mounting groove.

[0014] Preferably, an electromagnetic ring is provided on the outer side of the driving block, and the electromagnetic ring is fixedly connected to the inner surface of the covering ring, and the upper surface of the covering ring is fixedly connected to a mating ring, and the upper surface of the mating ring is fixedly connected to a sliding rod, and five sliding rods are arranged at fixed intervals around the central axis, and the top of the sliding rod passes through a limiting ring that is slidably connected, and the inner surface of the limiting ring is rotatably connected to the top outer surface of the rotating rod.

[0015] Preferably, a sealing capsule is fixedly connected to the lower surface of the limiting ring, the bottom of the sealing capsule is fixedly connected to the matching ring, and the sealing capsule is arranged on the outer side of the sliding rod.

[0016] Preferably, the interior of the second grinding roller is configured to be hollow, wherein the second grinding roller is made of an expandable friction rubber material, and the internal cavity of the second grinding roller is connected to the internal cavity of the sealing bag. When the driving block moves to the top of the thread of the rotating rod, the electromagnetic ring is energized. When the electromagnetic ring is energized, it will generate an adsorption force on the driving block due to magnetism, so that when the driving block reaches the top of the thread of the rotating rod, it is attracted to the adsorption force and moves into the covering ring, thereby causing its inner surface to break away from the contact with the rotating rod. At this time, under the action of elastic force, the driving tube will quickly drive the covering ring and the driving block to descend. When it descends to the bottom of the thread on the rotating rod, the electromagnetic ring is powered off. At this time, the driving block will quickly reset to the thread surface in contact with the bottom of the rotating rod under the action of elastic force, and continue to move upward through the rotation of the rotating rod, so that the second homogenizing plate can be intermittently moved up and down by the reciprocating motion, thereby greatly improving the homogenization effect of the nuclear graphite powder, and at the same time greatly improving the grinding effect of the nuclear graphite powder, and greatly improving the quality of the nuclear graphite powder.

[0017] The present invention provides a homogenizing device for nuclear graphite powder used in high temperature gas-cooled reactor nuclear fuel elements. It has the following beneficial effects:

[0018] 1. In the homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements, since the first homogenizing plate and the second homogenizing plate are both arranged in an arc shape, extrusion friction will be generated between the first homogenizing plate and the second homogenizing plate during the period from the initial contact to the separation, and the first homogenizing plate is elastically connected between the mounting tube and the first connecting rod, so that the first homogenizing plate and the second homogenizing plate are always in an extrusion friction state from the initial contact to the separation, thereby achieving a grinding effect on the nuclear graphite powder, grinding and crushing the lumps doped in the nuclear graphite powder, so that the nuclear graphite powder is further ground and processed during the homogenization process, which greatly improves the quality of the nuclear graphite powder.

[0019] 2. The homogenization device for nuclear graphite powder used in the nuclear fuel element of this high-temperature gas-cooled reactor. Since the first grinding roller and the second grinding roller are not in a planar state, during the movement of the first homogenization plate and the second homogenization plate, slight impacts will occur between the first grinding roller and the second grinding roller. Cooperating with the first homogenization plate and the second homogenization plate can improve the further grinding effect on the nuclear graphite powder, avoid the existence of some hard lumps in the nuclear graphite powder that cannot be directly ground and reduce the quality of the nuclear graphite powder. At the same time, during the rotation of the second homogenization plate, it will drive the coating ring at the top of the rotating tube to rotate, and then make the driving block inside the coating block rotate. Since the inner surface of the driving block is threadedly connected to the rotating rod, when the driving block rotates, it will move upward on the rotating rod, that is, the driving tube at its bottom will move upward during rotation, thereby driving the second homogenization plate to move upward. Thus, when homogenizing and stirring the nuclear graphite powder through the first homogenization plate and the second homogenization plate, the second homogenization plate will move upward in the outer frame body, greatly increasing the contact area with the nuclear graphite powder, further significantly improving the homogenization effect on the nuclear graphite powder, and at the same time also greatly improving the grinding effect on the nuclear graphite powder.

[0020] 3. The homogenization device for nuclear graphite powder used in the nuclear fuel element of this high-temperature gas-cooled reactor. When the second homogenization plate moves upward, it will cause the sliding rod to slide on the limiting ring, and then squeeze the sealing capsule. When the sealing capsule is squeezed, it will convey the air pressure inside it to the inside of the second grinding roller, thereby causing the second grinding roller to expand, and then effectively increasing the collision force between the second grinding roller and the first grinding roller, that is, greatly improving the crushing and grinding effect on the harder nuclear graphite powder mixture, further improving the quality of the homogenized nuclear graphite powder. And at the same time, by setting the sealing capsule, it can also prevent the nuclear graphite powder from penetrating into the driving tube and causing blockage, affecting the rotation of the driving tube and reducing the homogenization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view of the present invention;

[0022] Figure 2 is the installation structure schematic diagram of the homogenization mechanism of the present invention;

[0023] Figure 3 is the structure schematic diagram of the homogenization mechanism of the present invention;

[0024] Figure 4 is the partial structure disassembly schematic diagram of the homogenization mechanism of the present invention;

[0025] Figure 5 is the installation structure schematic diagram of the second homogenization plate of the present invention;

[0026] Figure 6 is the installation structure schematic diagram of the driving tube of the present invention;

[0027] Figure 7It is a structural schematic diagram of the rotating rod of the present invention;

[0028] Figure 8 It is a partial structural schematic diagram of the regulating mechanism of the present invention.

[0029] In the figure: 1, base; 2, bottom plate; 3, outer frame; 4, force plate; 5, hydraulic cylinder; 6, top cover; 7, feed port; 8, homogenizing mechanism; 81, motor; 82, rotating rod; 83, mounting ring; 84, mounting tube; 85, first connecting rod; 86, first supporting rod; 87, first stabilizing frame; 88, first homogenizing plate; 89, rotating wheel; 810, rotating tube; 811, isolation ring; 812, bearing ring; 813, driving tube; 814, second connecting rod; 815, second supporting rod; 816, second stabilizing frame; 817, second homogenizing plate; 818, first mounting groove; 819, first grinding roller; 820, second mounting groove; 821, second grinding roller; 9, adjusting mechanism; 91, covering ring; 92, driving block; 93, electromagnetic ring; 94, matching ring; 95, sliding rod; 96, limiting ring; 97, sealing bag. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a homogenizing device for nuclear graphite powder for high-temperature gas-cooled reactor nuclear fuel elements, comprising a base 1, a bottom plate 2 is fixedly mounted on the upper surface of the base 1, the bottom plate 2 is configured as a circular plate, an outer frame 3 is slidably sleeved on the outer side of the bottom plate 2, the outer frame 3 is configured as a circular tube, a force-bearing plate 4 is fixedly connected to the outer surface of the bottom of the outer frame 3, a hydraulic cylinder 5 is symmetrically fixedly connected to the lower surface of the force-bearing plate 4, the bottom of the hydraulic cylinder 5 is fixedly mounted on the upper surface of the edge of the bottom plate 2, a top cover 6 is buckled on the top of the outer frame 3, a feed port 7 is penetrated and opened on the upper surface of the top cover 6, and further comprising:

[0032] A homogenizing mechanism 8, which is disposed inside the outer frame 3 and is used to stir and homogenize the nuclear graphite powder;

[0033] An adjusting mechanism 9, which is fixedly mounted on the homogenizing mechanism 8 and is also disposed inside the outer frame 3. The adjusting mechanism 9 is used to adjust the stirring height and range. The adjusting mechanism 9 is also used to cooperate with the homogenizing mechanism 8 to complete stirring and homogenization;

[0034] The homogenizing mechanism 8 includes a motor 81, which is fixedly mounted on the upper surface of the top cover 6. The output end of the motor 81 is rotatably connected to a rotating rod 82, which is arranged inside the outer frame 3. The bottom of the rotating rod 82 is rotatably connected to the upper surface of the bottom plate 2. The outer surface of the upper end of the rotating rod 82 is fixedly connected to a mounting ring 83, and the outer surface of the mounting ring 83 is symmetrically fixedly connected to a mounting tube 84. The inner part of the mounting tube 84 away from the mounting ring 83 is elastically slidably connected to a first connecting rod 85, and the end of the first connecting rod 85 away from the mounting tube 84 is fixedly connected to a first supporting rod 86, wherein the first connecting rod 85 and the first supporting rod 86 are arranged perpendicular to each other, and the bottom of the first supporting rod 86 is fixedly connected to a first stabilizing frame 87, and the outer surface of the first stabilizing frame 87 is fixedly connected to a first homogenizing plate 88;

[0035] The first homogenizing plate 88 is configured to be a semicircular tube, and the first homogenizing plate 88 is configured to be bent toward one side of the outer frame 3. The bottom of the rotating rod 82 is rotatably connected to a rotating wheel 89, and the rotating wheel 89 is fixedly mounted on the upper surface of the bottom plate 2 through a connecting rod. The side of the rotating wheel 89 away from the rotating rod 82 is rotatably connected to a rotating tube 810.

[0036] The bottom outer surface of the rotating tube 810 is rotatably connected with an isolating ring 811, and the isolating ring 811 is fixedly connected to the upper surface of the bottom plate 2. The lower inner surface of the rotating tube 810 is fixedly connected with a bearing ring 812, and the bearing ring 812 is sleeved on the bottom outer surface of the rotating rod 82. The upper surface of the bearing ring 812 is elastically connected with a driving tube 813 through a spring, and the driving tube 813 is slidably connected to the inner surface of the rotating tube 810 up and down.

[0037] The adjusting mechanism 9 includes a covering ring 91, the bottom surface of which is fixedly connected to the upper surface of the driving tube 813, the interior of the covering ring 91 is arranged to be hollow, the inner side of the covering ring 91 is arranged to be open, and the interior of the covering ring 91 is elastically and slidably connected with a driving block 92, five driving blocks 92 are arranged at fixed intervals around the central axis, and the inner surface of the driving block 92 is threadedly connected to the outer surface of the rotating rod 82.

[0038] The top outer surface of the driving tube 813 is symmetrically fixedly connected with a second connecting rod 814, and the end of the second connecting rod 814 away from the driving tube 813 is fixedly connected with a second support rod 815, wherein the second connecting rod 814 and the second support rod 815 are arranged perpendicular to each other, and the bottom end of the second support rod 815 is fixedly connected with a second stabilizing frame 816, and the outer surface of the second stabilizing frame 816 is fixedly connected with a second equalizing plate 817, and the second equalizing plate 817 is arranged to be semicircular tube-shaped, and the second equalizing plate 817 is arranged to be bent toward one side of the rotating tube 810.

[0039] During operation, when it is necessary to homogenize the nuclear graphite powder, the mixture of the nuclear graphite powder can be placed into the outer frame 3 through the feed port 7 on the top cover 6, and the motor 81 is started after the placement is completed. When the motor 81 is started, the rotating rod 82 is driven to rotate. When the rotating rod 82 rotates, the mounting tube 84 on the mounting ring 83 is driven to rotate. When the mounting tube 84 rotates, the first stabilizing frame 87 is driven to rotate through the first connecting rod 85 and the first supporting rod 86, so that the first homogenizing plate 88 starts to rotate into the outer frame 3. The nuclear graphite powder is stirred and homogenized. At the same time, when the rotating rod 82 starts to rotate, it will drive the rotating wheel 89 at the bottom to start rotating, and then the rotating tube 810 connected to the rotating wheel 89 starts to rotate, and rotates in the opposite direction to the rotating rod 82. When the rotating tube 810 rotates, it will drive the driving tube 813 inside it to rotate, that is, finally drive the second homogenizing plate 817 to rotate through the second connecting rod 814 and the second supporting rod 815, that is, the first homogenizing plate 88 and the second homogenizing plate 817 are driven by the start of the motor 81. Plates 817 start to rotate in opposite directions at the same time, and then the nuclear graphite powder is stirred and homogenized by the first homogenizing plate 88 and the second homogenizing plate 817 rotating in opposite directions. At the same time, the first homogenizing plate 88 and the second homogenizing plate 817 will gradually contact each other during the rotation process, and start to contact from the edges of the first homogenizing plate 88 and the second homogenizing plate 817. Since the first homogenizing plate 88 and the second homogenizing plate 817 are both arranged in an arc shape, extrusion friction will be generated between the first homogenizing plate 88 and the second homogenizing plate 817 from the beginning of contact to the separation. At the same time, the first homogenizing plate 88 is elastically connected between the mounting tube 84 and the first connecting rod 85, so that the first homogenizing plate 88 and the second homogenizing plate 817 are always in an extrusion friction state from the beginning of contact to the separation, thereby achieving the grinding effect on the nuclear graphite powder, grinding and crushing the lumps doped in the nuclear graphite powder, so that the nuclear graphite powder is further ground and processed during the homogenization process, which greatly improves the quality of the nuclear graphite powder.

[0040] Second embodiment: Figures 3 to 8 As shown, the outer surface of the first equalizing plate 88 is penetrated by a first mounting groove 818, wherein five first mounting grooves 818 are provided around the central axis at fixed intervals, and a first grinding roller 819 is rotatably connected in the first mounting groove 818. The outer surface of the second equalizing plate 817 is penetrated by a second mounting groove 820, wherein five second mounting grooves 820 are also provided, and a second grinding roller 821 is rotatably connected in the second mounting groove 820.

[0041] During operation, when the first homogenizing plate 88 and the second homogenizing plate 817 are in an extrusion state from the beginning of contact to the separation, the first grinding roller 819 and the second grinding roller 821 installed on the first homogenizing plate 88 and the second homogenizing plate 817 can make the first grinding roller 819 and the second grinding roller 821 come into contact with each other, and at the same time, because the first grinding roller 819 and the second grinding roller 821 are not in a planar state, the first homogenizing plate 88 and the second homogenizing plate 817 will also cause a slight collision between the first grinding roller 819 and the second grinding roller 821 during the movement. The first homogenizing plate 88 and the second homogenizing plate 817 can be used to further improve the grinding effect of the nuclear graphite powder, avoid some harder lumps in the nuclear graphite powder that cannot be directly ground, and reduce the nuclear The quality of graphite powder, at the same time, the second homogenizing plate 817 will also drive the covering ring 91 at the top of the rotating tube 810 to rotate during the rotation process, thereby causing the driving block 92 inside the covering block to rotate. Since the inner surface of the driving block 92 is connected to the rotating rod 82 by a thread, the driving block 92 will move upward on the rotating rod 82 when it rotates, so that the driving tube 813 at its bottom moves upward when it rotates, thereby driving the second homogenizing plate 817 to move upward, and then when the nuclear graphite powder is homogenized and stirred by the first homogenizing plate 88 and the second homogenizing plate 817, the second homogenizing plate 817 will move upward in the outer frame 3, thereby greatly increasing the contact area with the nuclear graphite powder, thereby greatly improving the homogenization effect of the nuclear graphite powder, and at the same time greatly improving the grinding effect of the nuclear graphite powder.

[0042] The third embodiment: Figures 3 to 8 As shown, an electromagnetic ring 93 is provided on the outer side of the driving block 92, and the electromagnetic ring 93 is fixedly connected to the inner surface of the covering ring 91, and a matching ring 94 is fixedly connected to the upper surface of the covering ring 91, and a sliding rod 95 is fixedly connected to the upper surface of the matching ring 94, and five sliding rods 95 are arranged at fixed intervals around the central axis, and the top of the sliding rod 95 passes through a limiting ring 96 that is slidably connected, and the inner surface of the limiting ring 96 is rotatably connected to the top outer surface of the rotating rod 82.

[0043] A sealing capsule 97 is fixedly connected to the lower surface of the limiting ring 96 . The bottom of the sealing capsule 97 is fixedly connected to the matching ring 94 . The sealing capsule 97 is arranged on the outer side of the sliding rod 95 .

[0044] The interior of the second grinding roller 821 is configured to be hollow, wherein the second grinding roller 821 is made of an expansion friction rubber material, and the internal cavity of the second grinding roller 821 is communicated with the internal cavity of the sealing bag 97 .

[0045] When the driving block 92 moves to the top of the thread of the rotating rod 82, the electromagnetic ring 93 is powered on. When the electromagnetic ring 93 is powered on, the magnetism will generate an adsorption force on the driving block 92, so that when the driving block 92 reaches the top of the thread of the rotating rod 82, it will be attracted to the inner surface of the covering ring 91, thereby making its inner surface break away from the contact with the rotating rod 82. At this time, under the action of elastic force, the driving tube 813 will quickly drive the covering ring 91 and the driving block 92 to descend. When it descends to the bottom of the thread on the rotating rod 82, the electromagnetic ring 93 is powered off. At this time, the driving block 92 will quickly reset to the thread surface at the bottom of the rotating rod 82 under the action of elastic force, and continue to move upward through the rotation of the rotating rod 82. The second averaging plate 817 can be intermittently moved up and down by this reciprocating motion, thereby greatly improving the nuclear The homogenizing effect of the graphite powder also greatly improves the grinding effect of the nuclear graphite powder, and greatly improves the quality of the nuclear graphite powder. When the second homogenizing plate 817 moves upward, it will cause the slide bar 95 to slide on the limit ring 96, and then squeeze the sealing bag 97. When the sealing bag 97 is squeezed, the air pressure inside it will be transmitted to the inside of the second grinding roller 821, thereby causing the second grinding roller 821 to expand, and then the collision force between the second grinding roller 821 and the first grinding roller 819 is effectively increased, that is, the crushing and grinding effect of the harder nuclear graphite powder mixture is greatly improved, and the quality of the homogenized nuclear graphite powder is further improved. At the same time, by setting the sealing bag 97, it can also prevent the nuclear graphite powder from penetrating into the drive tube 813 to cause blockage, affecting the rotation of the drive tube 813 and reducing the homogenization effect.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. A homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly mounted with a bottom plate (2), the bottom plate (2) is configured as a circular plate, the outer side of the bottom plate (2) is slidably sleeved with an outer frame (3), the outer frame (3) is configured as a circular tube, the outer surface of the bottom of the outer frame (3) is fixedly connected with a force-bearing plate (4), the lower surface of the force-bearing plate (4) is symmetrically fixedly connected with a hydraulic cylinder (5), the bottom of the hydraulic cylinder (5) is fixedly mounted on the upper surface of the edge of the bottom plate (2), the top of the outer frame (3) is buckled with a top cover (6), the upper surface of the top cover (6) is penetrated with a feed port (7), and further comprises: A homogenizing mechanism (8), the homogenizing mechanism (8) being arranged inside the outer frame (3), and the homogenizing mechanism (8) being used to stir and homogenize the nuclear graphite powder; An adjusting mechanism (9), the adjusting mechanism (9) being fixedly mounted on the homogenizing mechanism (8), the adjusting mechanism (9) being arranged inside the outer frame (3), the adjusting mechanism (9) being used to adjust the stirring height and range, and the adjusting mechanism (9) being used to cooperate with the homogenizing mechanism (8) to complete stirring and homogenizing; The homogenizing mechanism (8) comprises a motor (81), the motor (81) being fixedly mounted on the upper surface of the top cover (6), the output end of the motor (81) being rotatably connected to a rotating rod (82), the rotating rod (82) being arranged inside the outer frame (3), the bottom of the rotating rod (82) being rotatably connected to the upper surface of the bottom plate (2), the upper end outer surface of the rotating rod (82) being fixedly connected to a mounting ring (83), the outer surface of the mounting ring (83) being symmetrically fixedly connected to a mounting tube (84), the inner part of the mounting tube (84) away from the mounting ring (83) being elastically slidably connected to a first connecting rod (85), the end of the first connecting rod (85) away from the mounting tube (84) being fixedly connected to a first supporting rod (86), the bottom of the first supporting rod (86) being fixedly connected to a first stabilizing frame (87), and the outer surface of the first stabilizing frame (87) being fixedly connected to a first homogenizing plate (88); The first homogenizing plate (88) is configured to be a semicircular tube shape, the first homogenizing plate (88) is configured to be bent toward one side of the outer frame (3), the bottom of the rotating rod (82) is rotatably connected to a rotating wheel (89), the rotating wheel (89) is fixedly mounted on the upper surface of the bottom plate (2) via a connecting rod, and the side of the rotating wheel (89) away from the rotating rod (82) is rotatably connected to a rotating tube (810); An isolating ring (811) is rotatably connected to the outer surface of the bottom of the rotating tube (810), and the isolating ring (811) is fixedly connected to the upper surface of the bottom plate (2); a bearing ring (812) is fixedly connected to the inner surface of the lower part of the rotating tube (810), and the bearing ring (812) is sleeved on the outer surface of the bottom of the rotating rod (82); the upper surface of the bearing ring (812) is elastically connected to a driving tube (813) via a spring, and the driving tube (813) is slidably connected to the inner surface of the rotating tube (810) in an up-and-down manner; A second connecting rod (814) is symmetrically fixedly connected to the top outer surface of the driving tube (813); one end of the second connecting rod (814) away from the driving tube (813) is fixedly connected to a second supporting rod (815); the bottom end of the second supporting rod (815) is fixedly connected to a second stabilizing frame (816); a second equalizing plate (817) is fixedly connected to the outer surface of the second stabilizing frame (816); the second equalizing plate (817) is configured to be a semicircular tube shape; and the second equalizing plate (817) is configured to bend toward one side of the rotating tube (810).

2. The homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements according to claim 1, characterized in that: A first mounting groove (818) is formed through the outer surface of the first equalizing plate (88), and a first grinding roller (819) is rotatably connected in the first mounting groove (818); a second mounting groove (820) is formed through the outer surface of the second equalizing plate (817), and a second grinding roller (821) is rotatably connected in the second mounting groove (820).

3. The homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements according to claim 2, characterized in that: The adjustment mechanism (9) comprises a covering ring (91), the bottom surface of the covering ring (91) is fixedly connected to the upper surface of the driving tube (813), the interior of the covering ring (91) is arranged to be hollow, the inner side of the covering ring (91) is arranged to be open, and the interior of the covering ring (91) is elastically slidably connected to a driving block (92), five driving blocks (92) are arranged at fixed intervals around the central axis, and the inner surface of the driving block (92) is threadedly connected to the outer surface of the rotating rod (82).

4. The homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements according to claim 3, characterized in that: An electromagnetic ring (93) is provided on the outer side of the driving block (92), and the electromagnetic ring (93) is fixedly connected to the inner surface of the covering ring (91). A matching ring (94) is fixedly connected to the upper surface of the covering ring (91), and a sliding rod (95) is fixedly connected to the upper surface of the matching ring (94). Five sliding rods (95) are arranged at fixed intervals around the central axis, and the top of the sliding rod (95) passes through a limiting ring (96) that is slidably connected, and the inner surface of the limiting ring (96) is rotatably connected to the top outer surface of the rotating rod (82).

5. The homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements according to claim 4, characterized in that: A sealing capsule (97) is fixedly connected to the lower surface of the limiting ring (96), the bottom of the sealing capsule (97) is fixedly connected to the matching ring (94), and the sealing capsule (97) is arranged on the outside of the sliding rod (95).

6. The homogenizing device for nuclear graphite powder for high temperature gas-cooled reactor nuclear fuel elements according to claim 5, characterized in that: The interior of the second grinding roller (821) is configured to be hollow, and the internal cavity of the second grinding roller (821) is in communication with the internal cavity of the sealing capsule (97).

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