CN108198643B - Microwave heating treatment system for high-radioactivity nuclear industrial waste - Google Patents
Microwave heating treatment system for high-radioactivity nuclear industrial waste Download PDFInfo
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- CN108198643B CN108198643B CN201810179631.2A CN201810179631A CN108198643B CN 108198643 B CN108198643 B CN 108198643B CN 201810179631 A CN201810179631 A CN 201810179631A CN 108198643 B CN108198643 B CN 108198643B
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- door plate
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
- 239000002440 industrial waste Substances 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 239000002927 high level radioactive waste Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims description 119
- 238000003825 pressing Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000002699 waste material Substances 0.000 description 13
- 230000005855 radiation Effects 0.000 description 12
- 230000003028 elevating effect Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/08—Processing by evaporation; by distillation
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/002—Containers for fluid radioactive wastes
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/12—Closures for containers; Sealing arrangements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/14—Devices for handling containers or shipping-casks, e.g. transporting devices loading and unloading, filling of containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
Abstract
The invention discloses a microwave heating treatment system for high-radioactivity nuclear industrial waste, which relates to the technical field of high-radioactivity nuclear industrial waste treatment and comprises a sealing box body and a control system, wherein a microwave heating hole is formed in the top of the sealing box body, a lifting device is arranged below the microwave heating hole, a sealing door is arranged on the sealing box body, a conveying device I for conveying a bucket containing high-level waste liquid to or away from the lifting device is arranged inside the sealing box body, a conveying device II is arranged outside the sealing box body, the control system comprises a touch screen and a PLC (programmable logic controller) electrically connected with the touch screen, and the PLC is electrically connected with the conveying device I, the conveying device II, the microwave heating hole and the lifting device respectively.
Description
Technical Field
The invention relates to the technical field of high-radioactivity nuclear industrial waste treatment, in particular to a microwave heating treatment system for high-radioactivity nuclear industrial waste.
Background
Radioactive waste solidification is the conversion of gaseous, liquid or solid waste into monolithic solidification bodies with performance indicators meeting disposal requirements, with the aim of forming an object with performance meeting disposal requirements suitable for handling, transportation and temporary storage. For high level waste liquid, the amount of liquid in the waste liquid is usually reduced before solidification, so that the later transportation, storage, process development and the like are facilitated. The existing method for reducing the liquid content of the high-level waste liquid is heating evaporation, wherein the microwave heating evaporation method is simple in process, low in cost and good in evaporation effect, so that the method is favored by most enterprises.
In the prior art, the treatment mode of microwave heating of the high-level waste liquid is to convey the high-level waste liquid into a microwave heating chamber through a pipeline by a pump, however, the conveying mode has the following problems:
because high level waste liquid generally contains more solid waste, pipeline blockage is easy to occur in the conveying process, once the pipeline blockage occurs, not only the process efficiency is affected, but also the risk of exposing operators to radiation is increased due to frequent treatment of the pipeline blocked by the high level waste.
Disclosure of Invention
The invention aims at: in order to solve the problems that the existing high-level waste liquid microwave heating device conveys high-level waste liquid through a pipeline, but the high-level waste liquid generally contains more solid waste, so that the pipeline is easy to be blocked in the conveying process, the process efficiency is affected, and the nuclear radiation risk is increased, the invention provides a high-radioactivity nuclear industry waste microwave heating treatment system.
The invention adopts the following technical scheme for realizing the purposes:
the utility model provides a high-radioactivity nuclear industry waste microwave heating processing system, including sealed box and control system, sealed box top is provided with microwave heating hole, microwave heating hole below is provided with elevating gear, be provided with the sealing door on the sealed box, the inside conveyer I that is used for carrying the bucket of splendid attire high-level waste liquid or takes elevating gear that is provided with of sealed box, sealed box outside is provided with conveyer II, conveyer I and conveyer II highly mutually match and lie in the both sides of sealing door respectively, control system includes the touch-sensitive screen and passes through the PLC controller of RS-232 realization communication with the touch-sensitive screen, the PLC controller is connected with conveyer I respectively, conveyer II, microwave heating hole and elevating gear electricity, be equipped with man-machine interface on the touch-sensitive screen, be equipped with a plurality of control buttons and parameter setting button on the man-machine interface, operating personnel realizes the control to conveyer I on the man-machine interface through operating control button and parameter setting button, conveyer II, microwave heating hole and elevating gear.
After the technical scheme is adopted, the barrel containing the high-level waste liquid is conveyed to the gate of the sealing gate through the conveying device II, the sealing gate is continuously conveyed after being opened, the conveying device I and the conveying device II are matched in height and only have a gap slightly wider than the sealing gate, so that the barrel containing the high-level waste liquid can be conveyed onto the conveying device I from the conveying device II, then the barrel containing the high-level waste liquid is conveyed onto the lifting device through the conveying device I, then the barrel is lifted through the lifting device, the barrel opening is aligned to the microwave heating hole and the barrel is extruded at the top of the sealing box body, the microwave heating hole is controlled by the PLC controller to carry out microwave heating evaporation moisture, automatic conveying, sealing and microwave heating evaporation of the barrel-containing high-level waste liquid are realized through the control system, manual field operation is hardly needed in the whole process, and the field waste liquid conveying pipeline is not used during equipment maintenance, so that the efficiency is improved, and the risk of operators to be radiated is greatly reduced.
Further, conveyer I and conveyer II are roller bed conveyer, the PLC controller electricity is connected with the converter, the converter is connected with conveyer I and conveyer II's motor respectively, the motor is connected with a set of gear train, be provided with the tray that is used for bearing the bucket of splendid attire high radio waste liquid and moves between conveyer I and conveyer II on the conveyer I, tray framework and gear train, the tray includes the tray main part, the both sides of tray main part are equipped with at least a pair of rotating assembly, rotating assembly and conveyer I and conveyer II's lateral wall cooperation, adopt the gear train to add the conveying mode of tray to transport the bucket, work efficiency has been improved, operating personnel is reduced by the risk of radiation.
When the tray moves forwards in a conveying manner on the conveying device I or the conveying device II, the tray collides with the side wall of the conveying device I or the conveying device II when the movement direction of the tray deflects, and the rotating assembly can slide relative to the side wall of the conveying device I or the conveying device II at the moment, so that the impact force between the tray and the conveying device I or the conveying device II is reduced, the loss caused by impact between the tray and the conveying device I or the conveying device II can be effectively reduced, and the service life of the tray is prolonged; in addition, the rotating assembly slides relatively with the side wall of the conveying device I or the side wall of the conveying device II, so that friction force between the rotating assembly and the side wall of the conveying device I or the side wall of the conveying device II is reduced, and the tray is prevented from being clamped on the side wall of the conveyor.
Further, the sealing door comprises a large door plate and a small door plate, the large door plate is provided with a linear sliding mechanism I parallel to the length direction of the large door plate, a plurality of pressing mechanisms for pressing the small door plate on the large door plate are fixedly connected to the sliding block of the linear sliding mechanism I, the pressing mechanisms are fixedly connected with the small door plate, an opening is formed in the large door plate and located between the two linear sliding mechanisms I, the area of the opening is smaller than that of the small door plate, the heights of the conveying device I and the conveying device II are consistent with the height of the lower edge of the opening, and the two linear sliding mechanisms I and the plurality of pressing mechanisms are respectively electrically connected with the PLC.
When the packaging and radiation protection is needed, the PLC controls the linear sliding mechanism I to drive the small door plate to the position corresponding to the opening on the large door plate, then drives the small door plate to be tightly pressed on the large door plate through the pressing mechanism, and seals the opening on the large door plate, when barreled high-level waste liquid is needed to be sent into the microwave heating device or taken out from the microwave heating device, the PLC controls the pressing mechanism to drive the small door plate to leave the surface of the large door plate, and then drives the small door plate to leave the position corresponding to the opening on the large door plate through the linear sliding mechanism I, so that the opening is exposed for barreled high-level waste liquid to pass through.
Further preferably, the compressing mechanism comprises a compressing mechanism support and a compressing mechanism sliding plate, the compressing mechanism support is fixed on a sliding block of the linear sliding mechanism I, the compressing mechanism sliding plate is fixed on the small door plate, the compressing mechanism support and the compressing mechanism sliding plate are connected in a sliding mode through a linear sliding mechanism II, the setting direction of the linear sliding mechanism II is perpendicular to the small door plate, and a compressing cylinder is further arranged between the compressing mechanism support and the compressing mechanism sliding plate.
According to the invention, the linear sliding mechanism II is controlled to slide by extending and retracting the compression cylinder, and the linear sliding mechanism II drives the compression mechanism bracket and the compression mechanism sliding plate to slide relatively, so that the small door plate is compressed on the large door plate or separated from the surface of the large door plate, the structure is simple, the compression effect on the small door plate is good, and the radiation protection requirement can be met.
Further, elevating gear includes mounting panel, roof, jacking cylinder and sharp direction subassembly I down, jacking cylinder and sharp direction subassembly I set up under between mounting panel and the roof, because the guiding action of sharp direction subassembly I for elevating gear's operation is more stable, avoids unexpected emergence such as waste liquid spill, bucket to empty, reduces the radiation risk.
Further, the roof top is provided with the hot plate, and hot plate and roof are connected through a plurality of buffer assemblies, and the hot plate can carry out auxiliary heating to the bucket when microwave heating for heating effect is better, and the evaporation is faster, improves the treatment effeciency of high level waste liquid.
Further, a weight sensor is arranged between the lower mounting plate and the jacking cylinder, and the weight sensor can detect the weight change of the barrel for containing the high-level waste liquid on the lifting device, so that an operator is helped to judge the evaporation condition.
Further, the inside wall of sealed box is provided with and hugs tightly the device, hugs tightly the device and is located between microwave heating hole and the elevating gear, hugs tightly the device and holds the bucket of the high waste liquid of splendid attire from the side, further avoids unexpected emergence such as waste liquid spill, bucket to empty, reduces the radiation risk.
Further, a liquid receiving disc is arranged between the microwave heating hole and the lifting device, a rotating mechanism electrically connected with the PLC is arranged on the side face of the liquid receiving disc, and the rotating mechanism is connected to the sealing box body through a connecting rod.
The liquid receiving disc is positioned above the barrel opening, the liquid receiving disc is driven to leave the upper part of the barrel opening by utilizing the rotating mechanism when heating is needed, then the barrel is lifted up by the lifting device, the barrel opening is aligned to the microwave heating hole and is extruded at the top of the sealed box body, at the moment, the inner space of the barrel is sealed by the top of the sealed box body, and the vapor generated by evaporation during microwave heating can only be discharged through the exhaust hole of the top specially used for discharging the vapor, and can not enter other parts in the sealed box body to be condensed; after the microwave heating is finished, in order to prevent the water dripped at the top of the sealed box body from affecting the equipment, after the barrel is lowered by the lifting device, the rotating mechanism is used for driving the liquid receiving disc to return to the upper part of the barrel opening to receive dripped water drops, so that the equipment inside the sealed box body can be effectively prevented from being polluted or corroded due to moisture in the microwave heating process and after the microwave heating.
Further, the rotating mechanism comprises a motor I, a transmission shaft, a rotating shaft, a bearing seat and an L connecting plate, wherein the L connecting plate is fixed on the connecting rod, the motor I and the bearing seat are respectively connected to two surfaces of the L connecting plate, the rotating shaft is connected to the liquid receiving disc, the axis of the rotating shaft is perpendicular to the liquid receiving disc, the transmission shaft is connected to the motor I, the transmission shaft is matched with the rotating shaft, a bearing is sleeved on the periphery of the transmission shaft or the rotating shaft, and the outer ring of the bearing is matched with the bearing seat.
Because the liquid receiving disc is only connected with the rotating mechanism at one point on the side surface, the gravity of the liquid receiving disc and the liquid contained in the liquid receiving disc is transmitted to the rotating mechanism to form larger moment. After the adoption of the preferred scheme, the bearing seat and the motor I in the rotating mechanism are respectively connected to the L connecting plate, and the bearing seat is rotationally connected with the transmission shaft or the rotating shaft connected to the motor I through the bearing.
The beneficial effects of the invention are as follows:
1. the invention realizes automatic transportation, sealing and microwave heating evaporation of barreled high-level waste liquid, almost no manual field operation is needed in the whole process, and the high-level waste liquid is not generated on site during equipment maintenance, thereby improving the efficiency on one hand and greatly reducing the risk of radiation of operators on the other hand.
2. When the tray moves forwards in a conveying manner on the conveying device I or the conveying device II, the tray collides with the side wall of the conveying device I or the conveying device II when the movement direction of the tray deflects, and the rotating assembly can slide relative to the side wall of the conveying device I or the conveying device II at the moment, so that the impact force between the tray and the conveying device I or the conveying device II is reduced, the loss caused by impact between the tray and the conveying device I or the conveying device II can be effectively reduced, and the service life of the tray is prolonged; in addition, the rotating assembly slides relatively with the side wall of the conveying device I or the side wall of the conveying device II, so that friction force between the rotating assembly and the side wall of the conveying device I or the side wall of the conveying device II is reduced, and the tray is prevented from being clamped on the side wall of the conveyor.
3. The invention realizes the closing and opening of the opening through the two groups of mechanisms of the linear sliding mechanism I and the pressing mechanism, and the operation process of closing and opening is convenient and quick because of simple movement relation. The whole sealing door is only provided with an opening matched with the barreled high-level radioactive waste liquid, and the opening can be completely sealed by the small door plate, so that the sealing door has good radiation effect in a sealing state.
4. According to the invention, due to the guiding function of the linear guiding component I, the operation of the lifting device is more stable, accidents such as waste liquid splashing and bucket dumping are avoided, and the radiation risk is reduced.
5. The heating plate can assist in heating the barrel while heating by microwaves, so that the heating effect is better, the evaporation is faster, and the treatment efficiency of the high-level waste liquid is improved.
6. According to the holding device, the barrel for containing the high-level waste liquid is fixed from the side face, so that accidents such as waste liquid splashing and barrel dumping are further avoided, and radiation risks are reduced.
7. In the rotating mechanism, the bearing seat and the motor I are respectively connected to the L connecting plate, and then the bearing seat is rotationally connected with the transmission shaft or the rotating shaft connected to the motor I through the bearing.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic diagram of the connection of the control system of the present invention;
FIG. 4 is a schematic diagram of the electrical connections between the conveyor I and the conveyor II of the present invention;
FIG. 5 is a schematic view of the structure of the tray of the present invention;
FIG. 6 is a schematic view of the rotating assembly of the pallet of the present invention;
FIG. 7 is a front view of the seal door of the present invention;
FIG. 8 is a top view of a seal door of the present invention;
FIG. 9 is a front view of the compression mechanism of the seal door of the present invention;
FIG. 10 is a top view of the compression mechanism of the seal door of the present invention;
FIG. 11 is a side view of the compression mechanism of the sealing door of the present invention;
FIG. 12 is a schematic view of a lifting device according to the present invention;
FIG. 13 is a schematic view of the hugging device according to the present invention;
FIG. 14 is a schematic view of a rotary mechanism according to the present invention;
FIG. 15 is a diagram of a touch screen human-machine interface display interface of the present invention;
FIG. 16 is a schematic of the electrical connection of wastewater purification of the present invention.
Reference numerals: 1-sealed box, 2-microwave heating hole, 3-connecting rod, 4-rotating mechanism, 401-rotating shaft, 402-bearing, 403-bearing seat, 404-spacer bush, 405-transmission shaft, 406-motor I, 407-L connecting plate, 5-liquid receiving disc, 6-barrel, 7-holding device, 701-clamping frame, 702-bracket I, 703-bracket II, 704-linear guide component II, 705-holding cylinder, 8-conveying device I, 9-lifting device, 901-heating plate, 902-top plate, 903-buffer component, 904-bracket III, 905-lifting cylinder, 906-linear guide component I, 907-weight sensor, 908-lower mounting plate, 10-sealing door, 1001-hold-down mechanism, 10011-hold-down mechanism support, 10012-hold-down mechanism slide, 10013-linear slide ii, 10014-hold-down cylinder, 10015-triangular haunch plate ii, 10016-triangular haunch plate i, 1002-small door panel, 1003-speed reducer, 1004-motor ii, 1005-linear slide i, 1006-large door panel, 1007-opening, 1008-drive shaft, 1009-drive sleeve, 10010-door frame, 11-conveyor ii, 12-tray, 1201-tray body, 1202-rotating assembly, 12021-follower, 12022-connecting plate.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention, taken in conjunction with the accompanying drawings and the following examples.
The present invention is described in detail below with reference to fig. 1 to 16.
Example 1
The utility model provides a high-radioactivity nuclear industry waste microwave heating processing system, its structure is as shown in fig. 1 through 3, including sealed box 1 and control system, sealed box 1 top is provided with microwave heating hole 2 and is used for discharging vapor's exhaust hole, microwave heating hole 2 below is provided with elevating gear 9, be provided with sealing door 10 on sealed box 1, sealed box 1 inside is provided with the conveyer I8 that is used for carrying high-radioactivity waste liquid's bucket 6 on or takes elevating gear 9, sealed box 1 outside is provided with conveyer II 11, conveyer I8 and conveyer II 11 highly match each other and lie in the both sides of sealing door 10 respectively, control system includes touch-sensitive screen and the PLC controller who is connected with the touch-sensitive screen electricity, the PLC controller is equipped with man-machine interface with conveyer I, conveyer II, microwave heating hole 2 and elevating gear 9 respectively, be equipped with a plurality of control buttons and parameter setting button on the touch-sensitive screen, the operating personnel realizes through operating control button and parameter setting button on man-machine interface that conveyer I, conveyer II 11, conveyer II, control button 2 and elevating gear have a control button, the temperature that can be moved through the control button, the control button has the outside, the flow can be triggered by the physical interface, the flow, the control system is outside is provided with the control button, O.
When the barreled high-level waste liquid is required to be heated, evaporated and reduced in volume, the barreled high-level waste liquid containing barrel 6 is conveyed to the outside of the sealing door 10 through the conveying device II 11, after the sealing door 10 is opened, the conveying device I8 and the conveying device II 11 are continuously conveyed, as the heights of the conveying device I8 and the conveying device II 11 are matched with each other and only a gap slightly wider than the sealing door 10 is formed between the conveying device I and the conveying device II, the barreled high-level waste liquid containing barrel 6 can be conveyed to the conveying device I8 through the conveying device II 11, the barreled high-level waste liquid containing barrel 6 is conveyed to the lifting device 9 through the conveying device I8, then the barreled 6 is lifted through the lifting device 9, the barreled opening is aligned with the microwave heating hole 2, the barreled 6 is extruded at the top of the sealing box 1 to carry out microwave heating evaporation moisture, and after microwave heating is finished, the barreled high-level waste liquid containing barrel 6 is conveyed out in the direction opposite to the conveying mode, automatic, sealing and microwave heating evaporation of the barreled high-level waste liquid containing barrel 6 is realized through the control system, the whole process almost does not need manual on site operation, and the equipment is not need to be carried on site, and the site operation is high, so that the efficiency is not greatly increased, and the risk of radiation risk is reduced.
Example 2
On the basis of embodiment 1, conveyer I8 and conveyer II 11 are roller conveyor, the PLC controller electricity is connected with the converter, the converter is connected with conveyer I and conveyer II's motor respectively, the motor is connected with a set of gear train, still be provided with a pair of limit switch on conveyer I8 and the conveyer II 11 respectively, be provided with the tray 12 that is used for bearing the bucket 6 of splendid attire high level waste liquid and moves between conveyer I8 and conveyer II 11 on the conveyer I8, the tray 12 structure is as shown in FIG. 5, including tray main part 1201, the both sides of tray main part 1201 are equipped with at least a pair of rotatable subassembly 1202 that can roll for conveyer I8 and conveyer II 11 lateral wall, tray main part 1201 upper surface is equipped with the portion of placing that is used for placing the bucket.
The tray main body 1201 is a rectangular plate made of stainless steel, has strong loading capacity, can bear the weight of the barrel 6 with large weight and containing high-level waste liquid, the four corners of the tray main body 1201 are provided with arc-shaped notches, each arc-shaped notch is provided with a rotating assembly 1202, the outermost position of the rotating assembly 1202 is exactly on the same straight line with the side part of the tray 12, and when the tray 12 moves forwards in a conveying way by the conveying device I8 or the conveying device II 11, the rotating assembly 1202 can slide relative to the side walls of the conveying device I8 and the conveying device II 11, so that the impact force between the tray 12 and the conveying device I8 and the conveying device II 11 is reduced, the loss caused by the impact between the tray 12 and the conveying device I8 and the conveying device II 11 can be effectively reduced, and the service life of the tray is prolonged; the rotating assembly 1202 slides relatively with the side walls of the conveying device I8 and the conveying device II 11, so that friction force between the rotating assembly 1202 and the side walls of the conveying device I and the conveying device II 11 is reduced, the tray 12 is prevented from being clamped, and normal conveying and subsequent treatment work of the barrel 6 for containing high-level waste liquid are ensured.
As shown in fig. 6, the rotation assembly 1202 includes a follower 12021 and a connection plate 12022, wherein the connection plate 12022 is provided with a through hole matched with a screw of the follower 12021, and the screw of the follower 12021 passes through the through hole to be matched with a nut; one end of the connection plate 12022, which is far from the through hole, is fixedly connected with the upper surface of the tray main body 1201, and the connection plate 12022 is fixedly connected with the tray main body 1201 through at least one fixing bolt, so that the overall mechanical strength between the connection plate 12022 and the tray main body 1201 is enhanced.
Example 3
On the basis of embodiment 1, the sealing door 10 is shown in fig. 7 and 8, and comprises a large door plate 1006 and a small door plate 1002, wherein a plurality of screw holes are formed in the edge of the large door plate 1006, the screw holes are used for fixing the large door plate on a door frame 10010, the door frame 10010 is fixedly installed on a box body 1 to be sealed, sealing strips are arranged between the door frame 10010 and the box body 1 to enhance sealing performance, a linear sliding mechanism I1005 parallel to the length direction of the large door plate 1006 is arranged on the side portions of two sides of the large door plate 1006, and sliding grooves of the linear sliding mechanism I1005 are fixed on the large door plate 1006 through screws.
The slide block of the linear sliding mechanism I1005 is fixedly connected with a plurality of compressing mechanisms 1001 for compressing the small door plate 1002 on the large door plate 1006 through screws, the compressing mechanisms 1001 are arranged between the two linear sliding mechanisms I1005, the compressing mechanisms 1001 are fixedly connected with the small door plate 1002, an opening 1007 is arranged on the large door plate 1006, the opening 1007 is also arranged between the two linear sliding mechanisms I1005, the area of the opening 1007 is smaller than that of the small door plate 1002, the heights of the conveying device I8 and the conveying device II 11 are consistent with that of the lower edge of the opening 1007, so that a barrel 6 for containing waste liquid can be conveyed between the conveying device I8 and the conveying device II 11 smoothly through the opening 1007, the two linear sliding mechanisms I1005 and the compressing mechanisms 1001 are respectively electrically connected with the PLC, an operator can operate a human-computer interface on a touch screen, and the linear sliding mechanisms I1005 and the compressing mechanisms 1001 are controlled to realize the matching of the large door plate 1006 and the small door plate 1002, and the operation is simple.
Be provided with the motor II 1004 that is used for driving sharp slide mechanism I1005 on the large door plant 1006, motor II 1004 is connected with the PLC controller electricity, is connected with transmission shaft 1008 on the motor II 1004, and the end and the sharp slide mechanism I1005 of transmission shaft 1008 are connected, are provided with the speed reducer 1003 between transmission shaft 1008 and the sharp slide mechanism I1005, and transmission shaft 1008 periphery is provided with transfer sleeve 1009.
When sealing and radiation protection are needed, the motor II 1004 is controlled to be started through the PLC controller, the small door plate 1002 is driven to the position corresponding to the opening 1007 on the large door plate 1006 by the linear sliding mechanism I1005, then the small door plate 1002 is driven to be pressed on the large door plate 1006 through the pressing mechanism 1001, the opening on the large door plate 1006 is sealed, when barreled high-level waste liquid is needed to be sent into the sealed box body 1 or taken out from the sealed box body 1, the small door plate 1002 is driven to leave the surface of the large door plate 1006 through the pressing mechanism 1001, then the small door plate 1002 is driven to leave the position corresponding to the opening 1007 on the large door plate 1006 through the linear sliding mechanism I1005, so that the opening 1007 is exposed for the barrel 6 to pass through.
Example 4
On the basis of embodiment 3, the structure of the pressing mechanism 1001 is shown in fig. 9 to 11, and the pressing mechanism includes a pressing mechanism support 10011 and a pressing mechanism sliding plate 10012, the pressing mechanism support 10011 is fixed on a sliding block of the linear sliding mechanism i 1005, the pressing mechanism sliding plate 10012 is fixed on the small door plate 1002, the pressing mechanism support 10011 and the pressing mechanism sliding plate 10012 form a sliding connection through a linear sliding mechanism ii 10013, the setting direction of the linear sliding mechanism ii 10013 is perpendicular to the small door plate 1002, and a pressing cylinder 10014 electrically connected with the PLC controller is further disposed between the pressing mechanism support 10011 and the pressing mechanism sliding plate 10012.
An operator controls the human-computer interface on the touch screen and controls the extension and retraction of the pressing cylinder 10014 through the PLC controller, so that the sliding of the linear sliding mechanism II 10013 is controlled, the sliding of the linear sliding mechanism II 10013 drives the pressing mechanism bracket 10011 and the pressing mechanism sliding plate 10012 to slide relatively, and the purpose of pressing the small door plate 1002 on the large door plate 1006 or enabling the small door plate 1002 to be separated from the surface of the large door plate 1006 is achieved.
The hold-down mechanism bracket 10011 is composed of a plate I and a plate II which are perpendicular to each other, wherein the plate I is fixed on the slide block of the linear sliding mechanism II 10013, and the plate II is fixed on the small door plate 1002. The hold-down mechanism slide 10012 is composed of a plate III and a plate IV which are perpendicular to each other, the plate III is fixed on the slide groove of the linear sliding mechanism II 10013, and the plate IV is fixed on the slide block of the linear sliding mechanism I1005. The triangular haunching plates I10016 are arranged on the plates I and II, the triangular haunching plates I10016 are right-angled triangles, and two right-angle sides of the triangular haunching plates I10016 are respectively arranged in the planes of the plates I and II; the triangular haunching plates II 10015 are arranged on the plates III and IV, the triangular haunching plates II 10015 are right-angled triangles, and two right-angle sides of the triangular haunching plates II 10015 are respectively arranged in the planes of the plates III and IV.
Example 5
On the basis of embodiment 1, the lifting device 9 is structured as shown in fig. 12, and includes a lower mounting plate 908, a top plate 902, a lifting cylinder 905 and a linear guide assembly i 906, the lifting cylinder 905 and the linear guide assembly i 906 being disposed between the lower mounting plate 908 and the top plate 902. The linear guide assembly I906 has a plurality of linear guide assemblies and is symmetrically arranged with respect to the jacking cylinder 905 as a center. A bracket iii 904 is disposed between the lower mounting plate 908 and the top plate 902, and the jacking cylinder 905 and the linear guide assembly i 906 are fixedly connected to the bracket iii 904, respectively, so as to be more secure.
A heating plate 901 is provided above the top plate 902, and the heating plate 901 and the top plate 902 are connected by a plurality of buffer assemblies 903. The cushioning assembly 903 includes a sleeve fixedly connected to the top plate, a shaft fixedly connected to the heating plate, and springs having both ends fixedly connected to the sleeve and the shaft, respectively. Due to the action of the springs, the buffer assembly 903 can effectively reduce the impact of the jacking cylinder 905 on the bucket 6 containing the high-level waste liquid in the up-and-down motion process, and the stability and safety of transportation are improved.
A weight sensor 907 is provided between the lower mounting plate 908 and the jacking cylinder 905.
Example 6
On the basis of embodiment 1, the inside wall of the sealed box 1 is provided with a holding device 7 electrically connected with the PLC, the holding device 7 is located between the microwave heating hole 2 and the lifting device 9, two holding devices 7 are symmetrically arranged on the inside wall of the sealed box 1 and used for holding and fixing the barrel 6 on the lifting device 9, as shown in fig. 15, a schematic diagram of a human-computer interface on the touch screen of the embodiment is provided, and an operator can observe the running condition of the system in real time through the human-computer interface and control each device of the system in real time.
The structure of the enclasping device 7 is shown in fig. 13, and comprises a clamping frame 701 for extruding a barrel 6, an enclasping air cylinder 705 connected with the clamping frame 701 and a plurality of linear guide assemblies II 704 symmetrically arranged on the side surface of the enclasping air cylinder 705, wherein a bracket I702 is connected with a piston rod of the enclasping air cylinder 705 at one end close to the clamping frame 701, the linear guide assemblies II 704 comprise an optical axis and a shaft sleeve sleeved outside the optical axis, the optical axis is also connected to the bracket I702, and the shaft sleeve is connected with a cylinder body of the enclasping air cylinder 705 through a bracket II 703.
Example 7
On the basis of the embodiment 1, a liquid receiving disc 5 is arranged between the microwave heating hole 2 and the lifting device 9, a rotating mechanism 4 electrically connected with the PLC is arranged on the side surface of the liquid receiving disc 5, and the rotating mechanism 4 is connected to the sealed box body 1 through a connecting rod 3.
When microwave heating is carried out, the barrel 6 containing high-level waste liquid is arranged on the lifting device 9, the liquid receiving disc 5 is positioned above the barrel opening, the liquid receiving disc 5 is driven to leave the upper part of the barrel opening by the rotating mechanism 4 when heating is needed, then the barrel 6 is lifted up by the lifting device 9, the barrel opening is aligned to the microwave heating hole 2 and is extruded at the top of the sealed box body 1, at the moment, the inner space of the barrel 6 is sealed by the top of the sealed box body 1, vapor generated by evaporation can only be discharged through the exhaust hole of the top specially used for discharging vapor when microwave heating is carried out, condensation can not occur at other parts in the sealed box body 1, after microwave heating is finished, in order to prevent water dripped at the top of the sealed box body 1 from affecting equipment, after the barrel 6 is lowered by the lifting device 9, the liquid receiving disc 5 is driven to return to the upper part of the barrel opening by the rotating mechanism 4, water drops are contained and dripped down, and the degree of automation is high.
Example 8
On the basis of embodiment 7, the structure of the rotating mechanism 4 is shown in fig. 14, and the rotating mechanism comprises a motor i 406, a transmission shaft 405, a rotating shaft 401, a bearing seat 403 and an L connecting plate 407, wherein the motor i 406 is electrically connected with the PLC controller, the L connecting plate 407 is fixed on the connecting rod 3, the motor i 406 and the bearing seat 403 are respectively connected on two surfaces of the L connecting plate 407, the rotating shaft 401 is connected on the liquid receiving disc 5, the axis of the rotating shaft 401 is mutually perpendicular to the liquid receiving disc 5, the transmission shaft 405 is connected on the motor i 406, the transmission shaft 405 and the rotating shaft 401 are mutually matched, a bearing 402 is sleeved on the periphery of the transmission shaft 405 or the rotating shaft 401, the outer ring of the bearing 402 is mutually matched with the bearing seat 403, and the bearing 402 can be set according to the requirement of pressure bearing, and one setting mode is that: the two bearings 402 are arranged side by side and coaxially, a spacer 404 is arranged between the two bearings 402, and in addition, in order to enhance the loading capacity of the rotating mechanism 4 in the vertical direction, a thrust bearing or a radial thrust bearing can be selected as the bearings 402.
Example 9
As shown in fig. 16, this embodiment is further optimized based on the above embodiment, specifically:
the microwave heating treatment system also comprises a wastewater purification pipeline, wherein the wastewater purification pipeline is provided with a frequency converter, a pneumatic valve, a temperature sensor, a pneumatic sensor and a liquid level sensor which are respectively and electrically connected with a PLC controller, and the PLC also communicates with the touch screen through RS-232;
as shown in fig. 3, fig. 4 and fig. 15, in this embodiment, an operator controls a man-machine interface on a touch screen, controls a frequency converter through a PLC controller, and controls a motor connected with the frequency converter to start, so that a conveying device ii 11 is started, conveying a tray 12, enabling the tray 12 to move along a roller way of the conveying device ii 11 from a starting point, conveying the tray 12 into a sealed box 1 through a rotating platform, controlling a linear sliding mechanism i 1005 and a compression cylinder 10014 through the PLC controller to enable a large door plate 1006 to be in sealing fit with a small door plate 1002, controlling a holding cylinder 705 through the PLC controller to hold the barrel 6, keeping stability of the barrel 6, controlling a liquid receiving cylinder of a rotating mechanism 4 connected with the liquid receiving disk 5 through the PLC controller to drive the liquid receiving disk 5 to rotate, controlling a lifting cylinder 905 to drive the barrel 6 to lift, enabling a barrel opening to be aligned with a microwave heating hole 2 through the PLC controller, starting microwave heating, monitoring weight change of the barrel 6 in real time according to a weight sensor 907, helping the operator judge evaporation conditions, controlling the whole set of the barrel 6 through the PLC controller, and optimizing the whole system after the evaporation conditions, and optimizing the working process from the PLC controller.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A microwave heating treatment system for high-radioactivity nuclear industrial waste is characterized in that: the device comprises a sealed box body (1) and a control system, wherein a microwave heating hole (2) is formed in the top of the sealed box body (1), a lifting device (9) is arranged below the microwave heating hole (2), a sealing door (10) is arranged on the sealed box body (1), a conveying device I (8) for conveying a barrel (6) containing high-level waste liquid to or away from the lifting device (9) is arranged in the sealed box body (1), a conveying device II (11) is arranged outside the sealed box body (1), the conveying device I (8) and the conveying device II (11) are mutually matched in height and are respectively positioned on two sides of the sealing door (10), the control system comprises a touch screen and a PLC (programmable logic controller) electrically connected with the touch screen, and the PLC is respectively electrically connected with the conveying device I (8), the conveying device II (11), the microwave heating hole (2) and the lifting device (9);
the conveying device I (8) and the conveying device II (11) are roller-type conveying devices, the PLC is electrically connected with a frequency converter, the frequency converter is respectively connected with motors of the conveying device I (8) and the conveying device II (11), a tray (12) used for bearing a barrel (6) for containing high-level waste liquid and moving between the conveying device I (8) and the conveying device II (11) is arranged on the conveying device I (8), the tray (12) comprises a tray main body (1201), at least one pair of rotating assemblies (1202) are arranged on two sides of the tray main body (1201), and the rotating assemblies (1202) are matched with side walls of the conveying device I (8) and the conveying device II (11);
the sealing door (10) comprises a large door plate (1006) and a small door plate (1002), a linear sliding mechanism I (1005) parallel to the length direction of the large door plate (1006) is arranged on the large door plate (1006), a plurality of pressing mechanisms (1001) used for pressing the small door plate (1002) on the large door plate (1006) are arranged on a sliding block of the linear sliding mechanism I (1005), the pressing mechanisms (1001) are connected with the small door plate (1002), an opening (1007) is arranged on the large door plate (1006), the opening (1007) is arranged between the two linear sliding mechanisms I (1005), the area of the opening (1007) is smaller than that of the small door plate (1002), the heights of a conveying device I (8) and a conveying device II (11) are consistent with the height of the lower edge of the opening (1007), and the two linear sliding mechanisms I (1005) and the plurality of pressing mechanisms (1001) are respectively electrically connected with a PLC controller;
the compressing mechanism (1001) comprises a compressing mechanism support (10011) and a compressing mechanism sliding plate (10012), the compressing mechanism support (10011) is fixed on a sliding block of the linear sliding mechanism I (1005), the compressing mechanism sliding plate (10012) is fixed on the small door plate (1002), the compressing mechanism support (10011) and the compressing mechanism sliding plate (10012) are in sliding connection through a linear sliding mechanism II (10013), the setting direction of the linear sliding mechanism II (10013) is perpendicular to the small door plate (1002), and a compressing cylinder (10014) is further arranged between the compressing mechanism support (10011) and the compressing mechanism sliding plate (10012);
the lifting device (9) comprises a lower mounting plate (908), a top plate (902), a lifting cylinder (905) and a linear guide assembly I (906), wherein the lifting cylinder (905) and the linear guide assembly I (906) are arranged between the lower mounting plate (908) and the top plate (902), a heating plate (901) is arranged above the top plate (902), the heating plate (901) and the top plate (902) are connected through a plurality of buffer assemblies (903), the lifting cylinder (905) is electrically connected with a PLC, and a weight sensor (907) is arranged between the lower mounting plate (908) and the lifting cylinder (905);
the inner side wall of the sealed box body (1) is provided with a holding device (7) electrically connected with the PLC, and the holding device (7) is positioned between the microwave heating hole (2) and the lifting device (9);
the rotating mechanism (4) comprises a motor I (406), a transmission shaft (405), a rotating shaft (401), a bearing seat (403) and an L connecting plate (407), wherein the motor I (406) is electrically connected with the PLC, the L connecting plate (407) is fixed on a connecting rod (3), the motor I (406) and the bearing seat (403) are respectively connected to two surfaces of the L connecting plate (407), the rotating shaft (401) is connected to a liquid receiving disc (5), the axis of the rotating shaft (401) is mutually perpendicular to the liquid receiving disc (5), the transmission shaft (405) is connected to the motor I (406), the transmission shaft (405) is mutually matched with the rotating shaft (401), a bearing (402) is sleeved on the periphery of the transmission shaft (405) or the rotating shaft (401), and the outer ring of the bearing (402) is mutually matched with the bearing seat (403);
a liquid receiving disc (5) is arranged between the microwave heating hole (2) and the lifting device (9), a rotating mechanism (4) electrically connected with the PLC is arranged on the side surface of the liquid receiving disc (5), and the rotating mechanism (4) is connected to the sealing box body (1) through a connecting rod (3).
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| CN113701920B (en) * | 2021-10-27 | 2022-08-19 | 南通诺林金属新材料科技有限公司 | High-temperature measuring device for surface of cylindrical metal shell of high-speed aircraft |
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