A double-barrel drying device

Abstract

The present invention belongs to the technical field of radioactive waste drying, and particularly relates to a double-barrel drying device, which includes an overall frame, a condenser, a drainer, a docking pipe, and a pair of drying barrels. The condenser is arranged within the overall frame, the drainer is fixed on the condenser, drying positions are provided on both sides of the overall frame, the pair of drying barrels are respectively arranged within the two drying positions, a heating plate is provided at the bottom of the drying position, the drying barrel is placed within the heating plate, the docking pipe communicates with the drying position through the top of the drying position, and one end of the docking pipe is connected to the condenser. The advantages are as follows: The present invention can utilize the double-barrel workstations to respectively carry out drying operations, improve efficiency, and at the same time can also perform follow-up drying actions, enabling the waste inside to be dried more quickly.

Description

Technical Field

[0001] The present invention belongs to the technical field of radioactive waste drying, and particularly relates to a double-barrel drying device. Background Art

[0002] Among various wastes generated by nuclear power plants, mainly soft wastes such as rags and clothes contaminated by radioactivity are the main ones. These wastes are generally directly loaded into steel barrels for overpressure volume reduction storage. Some of these wastes are wet wastes. To meet the requirements of long-term storage of national radioactive wastes, they need to be dried and then sent to an overpressor for overpressure. Therefore, the wet soft wastes are loaded into steel barrels for evaporation and drying.

[0003] During the drying operation, since it does not have its own braking ability, the wastes pressed inside need long-term operation at high temperature to stably meet the drying requirements, or it is still very difficult to achieve the treatment effect in some positions after treatment, resulting in the need for manual operation and inspection, which is not conducive to the long-term sustainable output operation of the drying station.

[0004] For this reason, we propose a double-barrel drying device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a double-barrel drying device that can use double-barrel workstations to perform drying operations separately for the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A double-barrel drying device includes an overall frame, a condenser, a drainer, a docking pipe, and a pair of drying barrels. The condenser is arranged inside the overall frame, and the drainer is fixed on the condenser. Drying positions are provided on both sides of the overall frame, and a pair of drying barrels are respectively arranged in the two drying positions. A heating plate is provided at the bottom of the drying position, and the drying barrel is placed in the heating plate. The docking pipe communicates with the drying position through the top of the drying position, and one end of the docking pipe is connected to the condenser.

[0007] In the above double-barrel drying device, the side of the heating plate extends upward to form a side wall.

[0008] In the above double-barrel drying device, fixing blocks are inserted into the side wall of the heating plate, and the fixing blocks are threadedly connected to the side wall of the heating plate.

[0009] In the above double-barrel drying device, a chamber is provided at the bottom of the overall frame. A pair of driving gears are rotatably connected to the bottom of the chamber, and the shaft part of the driving gear is fixedly connected to the heating plate. A driving motor is provided at the bottom of the chamber, and the shaft part of the driving motor is fixedly connected to a docking gear. The driving motor is movably connected to the bottom of the chamber, and the docking gear is movably meshed with the pair of driving gears.

[0010] In the above-mentioned double-barrel drying device, the bottom of the chamber is provided with tracks, on which a movable block is mounted. The movable block is fixedly connected to a driving motor, and a hydraulic rod is fixedly connected to the side of the movable block.

[0011] In the above-mentioned double-barrel drying device, there are a pair of the hydraulic rods, which are respectively arranged at the front and rear ends of the movable block.

[0012] In the above-mentioned double-barrel drying device, a groove is provided at the inner top of the drying position. The groove is communicated with a docking pipe, and a fan wheel is rotatably connected in the groove. A transmission group is installed in the overall frame, and the transmission group connects the fan wheel and a docking gear.

[0013] In the above-mentioned double-barrel drying device, the transmission group includes a pair of connecting gears rotatably arranged in the chamber. A first helical gear is vertically fixedly connected to the connecting gear, and a second helical gear is horizontally meshed with the first helical gear. A third helical gear is fixedly connected to the fan wheel, and the third helical gear is meshed with the second helical gear.

[0014] In the above-mentioned double-barrel drying device, a pair of the connecting gears are respectively arranged corresponding to a pair of driving gears, and are synchronously meshed with the docking gear corresponding to the driving gear.

[0015] In the above-mentioned double-barrel drying device, the docking pipe is in a Y shape. The two ends of the docking pipe respectively lead to the grooves of the overall frame, and a baffle is rotatably connected at the confluence in the middle of the docking pipe.

[0016] Compared with the existing technology, the advantages of this double-barrel drying device are as follows:

[0017] 1. Through the cooperation of the heating plate, driving gear, and docking gear set in the present invention, while using the driving motor to drive the docking gear, different heating plates are rotated correspondingly by docking the docking gear with different driving gears, so that one heating plate keeps working and the other heating plate is used for loading and unloading operations. At the same time, the rotation can also randomly stir the waste inside, making the drying operation more rapid and improving the drying efficiency of radioactive waste.

[0018] 2. Through the cooperation of the transmission group, fan wheel, docking pipe, and baffle set in the present invention, the rotational power of the driving motor is synchronously transmitted to the fan wheel through the docking of the transmission group to drive the fan wheel, so that the fan wheel rotates to generate a suction force to discharge the evaporated water vapor through the docking pipe. At the same time, the two drying cylinders can work separately without affecting each other by the follow-up movement of the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front structural schematic diagram of a double-barrel drying device provided by the present invention;

[0020] Figure 2 is Figure 1 a schematic diagram of the bottom structure of

[0021] Figure 3 is Figure 1 a schematic diagram of the back structure of

[0022] Figure 4 is Figure 1 a docking schematic diagram of the inner drive gear and the docking gear;

[0023] Figure 5 is Figure 4 a schematic diagram of the side structure of

[0024] Figure 6 is Figure 1 a suction structure schematic diagram of the middle fan wheel;

[0025] Figure 7 is Figure 1 a schematic diagram of the internal structure of the middle docking pipe;

[0026] Figure 8 is Figure 6 a connection schematic diagram of the transmission group in

[0027] In the figure, 1 is the overall frame, 2 is the condenser, 3 is the drainer, 4 is the docking pipe, 5 is the drying cylinder, 6 is the heating plate, 7 is the fixing block, 8 is the drive gear, 9 is the drive motor, 10 is the docking gear, 11 is the track, 12 is the movable block, 13 is the hydraulic rod, 14 is the fan wheel, 15 is the connecting gear, 16 is the first helical gear, 17 is the second helical gear, 18 is the third helical gear, 19 is the baffle. Specific embodiments

[0028] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0029] Embodiment

[0030] Among various wastes generated by nuclear power plants, the main ones are soft wastes contaminated with radioactivity such as rags and clothes. Generally, these wastes are directly packed into steel drums for overpressure volume reduction storage. Some of these wastes are wet wastes. To meet the requirements of long-term storage of national radioactive wastes, they need to be dried and then sent to an overpressor for overpressure. Therefore, the wet soft wastes are packed in steel drums for evaporation and drying.

[0031] During the drying operation, since it does not have its own braking ability, the wastes pressed inside need long-term operation at high temperature to stably meet the drying requirements, or it is still very difficult to achieve the treatment effect at some positions after treatment, resulting in the need for manual operation and inspection, which is not conducive to the long-term sustainable output operation of the drying station. Therefore, as Figures 1-3As shown in the figure, this solution designs a double-barrel drying device. The main body includes an overall frame 1, a condenser 2, a drain 3, a docking pipe 4, and a pair of drying barrels 5. The overall frame 1 is rectangular in shape and is a steel structure frame. The condenser 2 is used to condense the evaporated hot air flow into a liquid and discharge it through the drain 3.

[0032] The condenser 2 is arranged inside the overall frame 1 and is arranged at a position close to the rear of the overall frame 1. At the same time, the drain 3 is fixed on the condenser 2 and is interconnected with it for discharging the liquefied wastewater. Drying positions are provided on both sides of the overall frame 1. A pair of drying barrels 5 are respectively arranged in the two drying positions. The drying barrels 5 are independent individuals and are used to load radioactive fixed waste (this solution is mainly used to treat waste clothes, etc.). At the same time, a heating plate 6 is provided at the bottom of the drying position. The heating plate 6 adopts a vortex heating method and is used to heat the drying barrel 5 and the drying position through the heating plate 6, so that the radioactive wet waste in the drying position evaporates and dries. After the drying barrel 5 is placed in the drying position, a valve (not shown in the figure) is provided at the mouth of the drying position to close the drying position.

[0033] The specific method is as follows: Place the radioactive waste to be treated outside into the inside of the drying barrel 5, and then place the drying barrel 5 into the heating plate 6. Since the drying barrel 5 in the heating plate 6 also needs to be fixed, in this solution, the side of the heating plate 6 is extended upward to form a side wall, and fixing blocks 7 are inserted on the side wall of the heating plate 6. The fixing blocks 7 are cylindrical, and the fixing blocks 7 are threadedly connected to the side wall of the heating plate 6. Therefore, after the drying barrel 5 is placed in the heating plate 6, the drying barrel 5 can be simply fixed by rotating a plurality of fixing blocks 7. In order to achieve a uniform fixing effect, the fixing blocks 7 are equidistantly arranged on the heating plate 6, and the position height is not less than 10 cm.

[0034] Since the traditional drying method is usually in a static state, and the internal radioactive waste is also in a static state, the internal moving positions are relatively fixed and there will be no displacement, resulting in evaporation operations at fixed positions, thus prolonging the evaporation operation time and reducing the processing efficiency. In addition, generally there is only one processing pit, so it takes a long time to process multiple drying barrels 5 of the same batch. Therefore, as Figures 4-5As shown in the figure, a chamber is provided at the bottom of the overall frame 1. The chamber is arranged below the drying cylinder 5. A pair of driving gears 8 are rotatably connected to the bottom of the chamber. The driving gears 8 are respectively arranged at the positions of the two drying cylinders 5. A certain distance is maintained between the two driving gears 8. The shaft part of the driving gear 8 is fixedly connected to the heating disk 6, so that the driving gear 8 and the heating disk 6 rotate synchronously. In order to drive the driving gear 8, a driving motor 9 is provided at the bottom of the chamber. The shaft part of the driving motor 9 is fixedly connected to a docking gear 10. Therefore, after the docking gear 10 is driven by the driving motor 9 to rotate, it can drive the driving gear 8 to rotate. The rotation of the driving gear 8 will drive one of the drying cylinders 5 to rotate, so that during the evaporation operation, the relative displacement inside can be relatively frequent while the internal activities are relatively static, thereby improving the evaporation efficiency.

[0035] In order to further improve the evaporation efficiency, the specific method is as follows: set the rotation mode of the driving motor 9 to rotate forward for about 2 minutes, then use 1 minute to slowly decelerate, and finally suddenly stop, and then quickly accelerate for 2 minutes of rotation, and so on repeatedly, so that the waste inside can maintain effective position movement and have enough space for evaporation operation, thereby improving the evaporation efficiency.

[0036] In order to enable the two drying cylinders 5 to have better operating efficiency, that is, while one is performing heating and evaporation operation, the other is opened and stationary for preparation or loading and unloading work. Therefore, the driving motor 9 is movably connected to the bottom of the chamber, and the docking gear 10 is movably meshed with a pair of driving gears 8. In order to enable the driving motor 9 to move, a track 11 is laid at the bottom of the chamber, and a movable block 12 is erected on the track 11. The driving motor 9 slides on the track 11, and the movable block 12 is fixedly connected to the driving motor 9. The driving method is as follows: a hydraulic rod 13 is fixedly connected to the side of the movable block 12. There are a pair of hydraulic rods 13, which are respectively arranged at the front and rear ends of the movable block 12. The two hydraulic rods 13 are respectively arranged in the opposite directions of the movement of the movable block 12. Therefore, they can drive the movable block 12 to move cooperatively. When it is necessary to dock with the corresponding docking gear 10, the two hydraulic rods 13 are activated to drive the movable block 12 to slide on the track 11 and move to the corresponding position to mesh with the corresponding driving gear 8, thereby driving the corresponding drying cylinder 5 to rotate.

[0037] As Figures 6-8As shown, since rotation accelerates the evaporation effect, it is necessary to better actively suck the evaporated substances into the condenser 2. Specifically: the connecting pipe 4 is connected to the drying position through the top of the drying position to discharge the evaporated air flow, and one end of the connecting pipe 4 is connected to the condenser 2 to directly introduce it into the condenser 2 for liquefaction. The connecting pipe 4 in this solution is Y-shaped, and a groove is provided at the inner top of the drying position. The two diverging ends of the connecting pipe 4 respectively lead to the grooves of the overall frame 1. In order to ensure that the diverging ends of the connecting pipe 4 do not affect each other, a baffle 19 is rotatably connected at the confluence in the middle of the connecting pipe 4. When air flow flows into one section, the baffle 19 will deflect in the opposite direction under the action of the air flow, closing the fork of the connecting pipe 4 on the other side.

[0038] In order to achieve the effect of active suction and higher synchronism, a fan wheel 14 is rotatably connected in the groove, and a transmission group is installed in the overall frame 1 for connecting the power transmission of the driving motor 9 and the fan wheel 14. Specifically: the transmission group connects the fan wheel 14 and the docking gear 10. A pair of connecting gears 10 are respectively arranged corresponding to a pair of driving gears 8, and are synchronously meshed with the corresponding driving gears 8 and the docking gear 10. Therefore, the docking gear 10 and the driving gear 8 on each side rotate and stop synchronously. The transmission group includes a pair of connecting gears 15 rotatably arranged in the chamber. A first helical gear 16 is vertically fixedly connected to the connecting gear 15. A second helical gear 17 is horizontally meshed with the first helical gear 16. A third helical gear 18 is fixedly connected to the fan wheel 14, and the third helical gear 18 is meshed with the second helical gear 17. The first helical gear 16, the second helical gear 17, and the third helical gear 18 are all fixed on the overall frame 1. Therefore, the power transmission can be achieved through the docking gear 10, so that the fan wheel 14 rotates at the same speed, thereby enabling the waste to be dried more quickly inside it.

[0039] Although terms such as overall frame 1, condenser 2, drainer 3, connecting pipe 4, drying cylinder 5, heating plate 6, fixing block 7, driving gear 8, driving motor 9, docking gear 10, track 11, movable block 12, hydraulic rod 13, fan wheel 14, connecting gear 15, first helical gear 16, second helical gear 17, third helical gear 18, baffle 19, etc. are used more in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A double-barrel drying device, characterized in that, It includes an overall frame (1), a condenser (2), a drainer (3), a docking pipe (4), and a pair of drying cylinders (5). The condenser (2) is arranged inside the overall frame (1), and the drainer (3) is fixed on the condenser (2). Drying positions are provided on both sides of the overall frame (1). A chamber is provided at the bottom of the overall frame (1). A pair of driving gears (8) are rotatably connected to the bottom of the chamber. The shaft part of the driving gear (8) is fixedly connected to a heating plate (6). A driving motor (9) is provided at the bottom of the chamber. The shaft part of the driving motor (9) is fixedly connected to a docking gear (10). The driving motor (9) is movably connected to the bottom of the chamber. The docking gear (10) is movably meshed with the pair of driving gears (8). A track (11) is laid at the bottom of the chamber, and a movable block (12) is mounted on the track (11). The movable block (12) is fixedly connected to the driving motor (9). A hydraulic rod (13) is fixedly connected to the side part of the movable block (12). There are a pair of hydraulic rods (13), which are respectively arranged at the front and rear ends of the movable block (12). The pair of drying cylinders (5) are respectively arranged in the two drying positions. A heating plate (6) is provided at the bottom of the drying position. The drying cylinder (5) is placed in the heating plate (6). The docking pipe (4) communicates with the drying position through the top of the drying position, and one end of the docking pipe (4) is connected to the condenser (2).

2. The double-barrel drying device according to claim 1, characterized in that, The side of the heating plate (6) extends upward to form a side wall.

3. The double-barrel drying device according to claim 2, wherein, A fixing block (7) is inserted through the side wall of the heating plate (6), and the fixing block (7) is threadedly connected to the side wall of the heating plate (6).

4. The double-barrel drying device according to claim 1, characterized in that A groove is provided at the inner top of the drying position, and the groove is communicated with the docking pipe (4). A fan wheel (14) is rotatably connected in the groove. A transmission group is installed inside the overall frame (1), and the transmission group connects the fan wheel (14) and the docking gear (10).

5. The double-barrel drying device according to claim 4, characterized in that, The transmission group includes a pair of connecting gears (15) rotatably arranged in the chamber. A first helical gear (16) is vertically fixedly connected to the connecting gear (15). A second helical gear (17) is horizontally meshed with the first helical gear (16). A third helical gear (18) is fixedly connected to the fan wheel (14), and the third helical gear (18) is meshed with the second helical gear (17).

6. The double-barrel drying device according to claim 5, characterized in that The pair of connecting gears (15) are respectively arranged corresponding to the pair of driving gears (8), and are synchronously meshed with the corresponding driving gear (8) and the docking gear (10).

7. The double-barrel drying device according to claim 4, wherein, The docking pipe (4) is in a Y shape. The two ends of the docking pipe (4) respectively lead to the groove of the overall frame (1), and a baffle (19) is rotatably connected at the confluence of the middle part of the docking pipe (4).

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