CN113351969A - Cutting method, device and system for radioactive container - Google Patents
Cutting method, device and system for radioactive container Download PDFInfo
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- CN113351969A CN113351969A CN202110687322.8A CN202110687322A CN113351969A CN 113351969 A CN113351969 A CN 113351969A CN 202110687322 A CN202110687322 A CN 202110687322A CN 113351969 A CN113351969 A CN 113351969A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 242
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002699 waste material Substances 0.000 claims abstract description 98
- 239000003381 stabilizer Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000005096 rolling process Methods 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 3
- 239000002901 radioactive waste Substances 0.000 description 8
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a cutting method of a radioactive container, which comprises the following steps: planning a cutting path to divide the radioactive container into a plurality of cutting areas; respectively carrying out radial cutting and axial cutting on the radioactive container according to each divided cutting area until waste sheets of each cutting area are obtained; the waste pieces are reconditioned. The invention also discloses a cutting device of the radioactive container and a cutting system of the steam generator/voltage stabilizer using the cutting device. The invention can reduce the cutting difficulty and has the characteristics of high cutting efficiency, less secondary waste amount and the like.
Description
Technical Field
The invention belongs to the technical field of nuclear engineering, and particularly relates to a cutting method and a cutting device for a radioactive container and a cutting system for a steam generator/voltage stabilizer.
Background
In nuclear engineering, large radioactive containers such as steam generators, pressure stabilizers and the like have the characteristics of large volume, heavy weight, thick equipment wall thickness and the like, and need to be disassembled on site during decommissioning, so that the generation amount of radioactive wastes and the volume of outward transportation and disposal of the wastes are reduced.
Wherein, the steam generator is in a vertical storage tank structure, the inner diameter of the steam generator can reach 1518mm, the wall thickness can reach 46mm, and the total height of the equipment can reach 6061 mm. According to the equipment structure and source condition of the steam generator, the steam generator after decontamination is cut and disassembled, the shell of the steam generator can be treated as non-radioactive waste, and the U-shaped pipe and part of the shell in the steam generator need to be treated and prepared as radioactive waste; the appearance of stabiliser is vertical basin class structure, and its internal diameter can reach 1200mm, and the wall thickness can reach 63mm, and upper and lower both ends are oval head, because there is radioactive contamination in the stabiliser cavity, generally handles as radioactive waste with the whole cutting of stabiliser to the out-of-service demolition method of stabiliser.
At present, generally, the cutting mode to above-mentioned large-scale radioactive container is the washing decontamination at first, adopts equipment such as diamond wire saw to cut again, can produce secondary waste such as a large amount of waste water, is unfavorable for the wastes material minimizing, simultaneously, because large-scale radioactive container's thickness is big, not only the cutting degree of difficulty is big, cuts inefficiency, still need consume a large amount of cutting consumptive materials, and the cost is higher.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a cutting method and a cutting device of a radioactive container and a cutting system of a steam generator/voltage stabilizer aiming at the defects in the prior art, which not only reduce the cutting difficulty, but also have the characteristics of high cutting efficiency, small amount of secondary waste and the like.
According to one aspect of the invention, a cutting method of a radioactive container is provided, which adopts the technical scheme that:
a method of cutting a radioactive container, comprising the steps of:
planning a cutting path to divide the radioactive container into a plurality of cutting areas;
respectively carrying out radial cutting and axial cutting on the radioactive container according to each divided cutting area until waste sheets of each cutting area are obtained;
the waste pieces are reconditioned.
Preferably, the planning of the cutting path includes: setting a cutting path according to the structure of the radioactive container and the distribution of the radioactive region and the non-radioactive region of the radioactive container;
the reconditioning of the waste sheet comprises: and (4) loading the waste sheets into a steel box for sealing and storing, and then sending the steel box into a waste disposal warehouse for disposal.
Preferably, the radial cutting and the axial cutting are respectively performed on the radioactive container according to each divided cutting area until a waste sheet of each cutting area is obtained, and the method comprises the following steps:
the radioactive container is first radially cut along the vertical edges of the respective cutting zones to divide the radioactive container into a plurality of waste segments, and then each waste segment is axially cut along the lateral edges of each cutting zone to divide each waste segment into a plurality of waste pieces.
Preferably, the radioactive container is rotated along its axis during the radial and axial cuts, respectively, of the radioactive container.
Preferably, the method further comprises: the lifting lugs are welded on the cutting areas respectively, the lifting lugs on the cutting areas to be cut from the radioactive container are hooked by the lifting hooks during cutting, after cutting is finished, the cut waste sheets are stacked in a special hanging basket, and then the waste sheets and the hanging basket are placed in a steel box together for sealing.
According to another aspect of the present invention, there is provided a cutting device for radioactive containers, comprising:
the cutting device of the radioactive container comprises a cutting machine tool, a cutting machine tool support and a cutting rack, wherein the cutting rack is used for placing the radioactive container;
the cutting machine tool support comprises a support base and a movable supporting component, wherein the cutting machine tool is installed on the movable supporting component, the movable supporting component is arranged on the support base, the movable supporting component can move on the support base along a first horizontal direction to drive the cutting machine tool to cut the radioactive container axially, the cutting machine tool can move on the movable supporting component along a second horizontal direction to drive the cutting machine tool to cut the radioactive container radially.
Preferably, the first horizontal direction is parallel to the axial direction of the radioactive container, the second horizontal direction is perpendicular to the first horizontal direction, the support base is arranged on the side edge of the cutting rack, a sliding rail is arranged on the support base, and the sliding rail is parallel to the axial direction of the radioactive container;
the movable support assembly comprises a vertical support piece, a horizontal support piece and an implement mounting seat, and the vertical support piece is slidably arranged on the slide rail;
horizontal support piece's length direction with the second horizontal direction is parallel, and it is in cutting rack top, and horizontal support piece's one end with vertical support piece links to each other, the cutting machines is installed on the machines mount pad, the machines mount pad is slided and is established on horizontal support piece.
Preferably, the device further comprises a drive mechanism, said drive mechanism comprising a first drive unit and a second drive unit,
the first driving unit is connected with the vertical supporting piece so as to drive the vertical supporting piece to move on the sliding rail;
the second driving unit is connected with the machine tool mounting seat to drive the cutting machine tool to move along the length direction of the horizontal supporting piece.
Preferably, the horizontal support member is connected with the vertical support member in a sliding manner, and the horizontal support member can move on the vertical support member along the length direction of the vertical support member;
the driving mechanism further comprises a third driving unit, and the third driving unit is connected with the horizontal supporting piece so as to drive the horizontal supporting piece to move along the length direction of the vertical supporting piece.
Preferably, the device further comprises a rolling mechanism, the rolling mechanism is arranged on the cutting bench, and the emitter container is arranged on the rolling mechanism so that the emitter container can rotate along the axis of the emitter container;
the driving mechanism further comprises a fourth driving unit, and the fourth driving unit is connected with the rolling mechanism and used for driving the rolling mechanism to roll.
According to another aspect of the invention, a cutting system of a steam generator/pressurizer is provided, which adopts the technical scheme that:
a cutting system of a steam generator/pressurizer comprises the cutting device of the radioactive container and a control device, wherein the cutting device of the radioactive container is used for cutting the steam generator/pressurizer;
the control device is used for controlling the cutting device of the radioactive container, and a cutting machine tool of the cutting device of the radioactive container adopts a plasma cutting machine.
Compared with the prior art, the cutting method and the cutting device for the radioactive container and the cutting system for the steam generator/voltage stabilizer can easily cut the radioactive container (especially a large radioactive container), have high cutting efficiency and generate less secondary waste. In addition, the cutting method is very convenient for remote cutting control, realizes remote control operation and can reduce the radioactive irradiation risk.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for cutting a radioactive container according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cutting device for radioactive containers according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a schematic sectional view of a cutting area of the steam generator according to the embodiment of the present invention;
FIG. 6 is a schematic cut-away view of a steam generator cartridge according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a cut-out section of a voltage regulator in accordance with an embodiment of the present invention;
FIG. 8 is a schematic cut-away view of a cylinder of a voltage regulator in an embodiment of the invention.
In the figure: 1-a cutting implement support; 11-a stand base; 111-a slide rail; 12-a vertical support; 121-a slide; 13-a horizontal support; 14-implement mount; 2-a cutting machine; 3-cutting the rack; 4-a radioactive container; 41-steam generator cylinder; 42-sealing a steam generator head; 41-a stabilizer cylinder; 42-sealing a head of the voltage stabilizer; 5-a rolling mechanism; 51-rolling members; 52-support frame.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the indication of orientation or positional relationship, such as "on" or the like, is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must be provided with a specific orientation, constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, e.g., as being fixedly or removably connected, or integrally connected; either directly or indirectly through intervening media, or through the interconnection of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
Example 1
As shown in fig. 1, the present embodiment discloses a cutting method of a radioactive container, including:
planning a cutting path to divide the radioactive container into a plurality of cutting areas;
respectively carrying out radial cutting and axial cutting on the radioactive container according to each divided cutting area until waste sheets of each cutting area are obtained;
the waste pieces are reconditioned.
In some embodiments, planning a cutting path comprises: the cutting path is set according to the structure of the radioactive container 4 and the distribution of the radioactive region and the non-radioactive region of the radioactive container, for example, when the radioactive container 4 is a steam generator, the cutting path may be divided as shown by a dotted line in fig. 5, and when the radioactive container 4 is a pressurizer, the cutting path may be divided as shown by a dotted line in fig. 7, so that the non-radioactive portion and the radioactive portion are located in the cutting regions which are independent of each other as much as possible, thereby facilitating the separation treatment of the non-radioactive waste and the radioactive waste and reducing the disposal amount of the radioactive waste.
In some embodiments, the waste sheet is conditioned, comprising: and (4) loading the cut waste sheets into a steel box for sealing and storing, and then sending the steel box into a waste disposal warehouse for disposal.
In some embodiments, the radial cutting and the axial cutting are performed on the radioactive container according to each cutting area divided until a waste sheet of each cutting area is obtained, including: the radioactive container is first cut radially along the vertical edges (as viewed in fig. 5 and 7) of the respective cutting zones of the radioactive container 4 to divide the radioactive container into a plurality of waste pieces, and then each waste piece is cut axially along the lateral edges of each cutting zone to divide each waste piece into a plurality of waste pieces.
In some embodiments, the radioactive container is rotated along its own axis in the process of performing radial cutting and axial cutting on the radioactive container respectively, so as to cooperate with the radial cutting and the axial cutting, thereby greatly reducing the requirement on the degree of freedom of a cutting machine tool, reducing the difficulty of cutting control and reducing the cost of the cutting machine tool.
Specifically, as shown in fig. 3, the cutting machine 2 is preferably moved in the second horizontal direction or the barrel of the radioactive container 4 is rotated by the rolling mechanism 5 to perform radial cutting, the closure of the radioactive container 4 is cut off first, the barrel of the radioactive container 4 is left, the barrel of the entire radioactive container 4 is cut into a plurality of waste segments, the cutting machine 2 is moved in the first horizontal direction to perform axial cutting on each waste segment that has been cut off, the moving speed is matched with the cutting speed of the cutting machine 2, and each waste segment is cut into a plurality of waste pieces until the cutting of the entire radioactive container is completed. In this embodiment, preferably, the radioactive waste is first cut into three waste sections, and then each waste section is cut into three waste pieces.
In some embodiments, the method further comprises: lifting lugs are respectively welded on each cutting area, the process can be operated by means of a manipulator so as to avoid the danger of radioactive irradiation, and the radioactive container 4 to be cut is lifted to the cutting rack 3 through auxiliary equipment such as a crane. During cutting, the lifting hook is used for hooking the lifting lug on the cutting area to be cut from the radioactive container, after cutting is finished, all cut waste sheets are stacked in a special hanging basket, and then the waste sheets and the hanging basket are placed in a steel box together for sealing.
In this embodiment, the radioactive container mainly refers to a container with a large thickness, a large volume, a large weight and a high radioactivity, such as a steam generator and a voltage stabilizer in the nuclear industry.
It should be noted that the method of the present embodiment is also suitable for cutting all other types of cylindrical containers, besides large radioactive containers such as steam generators and pressure regulators, and the detailed description thereof is omitted here.
Compared with the prior art, the cutting method of the radioactive container can easily cut the radioactive container (especially a large radioactive container), has high cutting efficiency and generates less secondary waste. In addition, the cutting method is very convenient for remote cutting control, realizes remote control operation and can reduce the radioactive irradiation risk.
Example 2
As shown in fig. 2, the present embodiment discloses a cutting device for radioactive container, comprising a cutting tool 2, a cutting tool 2 support 1, and a cutting bench 3, wherein:
the cutting stand 3 is used for placing a radioactive container 4;
the cutting machine 2 and the support 1 comprise a support base 11 and a movable support assembly, wherein the cutting machine 2 is arranged on the movable support assembly, the movable support assembly is arranged on the support base 11, and the movable support assembly can move on the support base 11 along a first horizontal direction so as to drive the cutting machine 2 to axially cut the radioactive container 4; the cutting tool 2 can move on the movable support assembly along a second horizontal direction to drive the cutting tool 2 to radially cut the radioactive container 4.
In this embodiment, the cutting tool 2 preferably employs a plasma cutting machine, which has a high cutting speed and generates less secondary waste.
In some embodiments, as shown in fig. 3 and 4, the first horizontal direction is parallel to the axial direction of the radioactive container 4, the second horizontal direction is perpendicular to the first horizontal direction, the support base 11 is disposed at a side of the cutting table 3, the support base 11 is provided with a slide rail 111, and the slide rail 111 is disposed parallel to the axial direction of the radioactive container 4. The movable support assembly includes a vertical support 12, a horizontal support 13, and an implement mount 14, wherein: the vertical support 12 is arranged on the slide rail 111; the length direction of the horizontal support piece 13 is parallel to the second horizontal direction and is positioned above the cutting table 3, and one end of the horizontal support piece is connected with the vertical support piece 12; the cutting implement 2 is mounted on an implement mount 14, the implement mount 14 being formed on the horizontal support 13.
Specifically, the sliding rail 111 is disposed on the top of the bracket base 11, and the bottom of the vertical support 12 is provided with a sliding member 121 adapted to the sliding rail 111. For example, as shown in fig. 3, the sliding rail 111 may be a first protrusion parallel to the axial direction of the radioactive container 4, and correspondingly, the sliding member 121 is a pulley adapted to the first protrusion; the slide rail 111 may also be a groove parallel to the axial direction of the radioactive container 4, and the sliding member 121 is a second protrusion adapted to the groove, and the second protrusion is clamped in the groove and can slide along the groove; of course, the vertical support 12 and the rack base 11 may be movably connected in other similar manners.
The implement mounting seat 14 and the horizontal supporting member 13 can be connected by the same or similar connection manner as the vertical supporting member 12 and the bracket base 11, so as to realize the movement along the second horizontal direction, which is not described in detail herein.
In some embodiments, the apparatus further comprises a driving mechanism (not shown in the figures), the driving mechanism comprises a first driving unit and a second driving unit, the first driving unit is connected with the vertical support 12 to drive the vertical support 12 to move along the first horizontal direction on the slide rail of the rack base 11; the second driving unit is connected with the implement mounting seat 14 to drive the cutting implement 2 to move along the length direction of the horizontal supporting component.
In some embodiments, the horizontal support 13 is slidably connected to the vertical support 12, that is, the horizontal support 13 can move along the length of the vertical support 12, so that the height of the cutting machine can be conveniently adjusted. The drive mechanism further comprises a third drive unit connected to the horizontal support 13 to drive the horizontal support 13 to move on the vertical support 12 along the length of the vertical support.
In some embodiments, the device further comprises a rolling mechanism 5, the rolling mechanism 5 is arranged on the cutting bench 3, and the radioactive container 4 is arranged on the rolling mechanism, so that the radioactive container 4 can rotate along the axis thereof to cooperate with cutting; the driving mechanism further comprises a fourth driving unit, and the fourth driving unit is connected with the rolling mechanism 5 and is used for driving the rolling mechanism to roll so as to drive the radioactive container 4 to rotate.
Specifically, as shown in fig. 3, the rolling mechanism 5 includes a rolling member 51 and a supporting frame 52, the supporting member is fixed on the top of the cutting table 3, and the rolling member 51 is mounted on the supporting frame 52. The number of the rolling mechanisms 5 is multiple, and the multiple sets of rolling mechanisms 5 are distributed along the axial direction of the radioactive container 4. Each set of rolling mechanism 5 comprises one or more pairs of support frames 52, each pair of support frames 52 is symmetrically arranged, two rolling members 51 are preferably arranged on each support frame 52, in this embodiment, the rolling members 51 are rollers, the rollers are connected with the fourth driving unit, the edges of the rollers are preferably tangent to the outer wall of the radioactive container 4, the rollers are driven by the fourth driving unit to roll, and the radioactive container 4 is driven to select along the axis thereof through the rolling action of the rolling members 51.
In this embodiment, the rolling mechanism 5 is arranged to roll the radioactive container 4, so that the flexible requirements on the cutting machine 2 can be reduced, and the difficulty of cutting control is greatly reduced.
In this embodiment, the radioactive container 4 mainly refers to a container with a large thickness, a large volume, a large weight and high radioactivity, such as a steam generator and a voltage stabilizer in the nuclear industry.
It should be noted that the device of the present embodiment is also suitable for cutting all other types of cylindrical containers, besides the large radioactive container 4, and the description thereof is omitted.
Compared with the prior art, the cutting device for the radioactive container can easily cut the radioactive container (especially a large radioactive container), reduces the cutting difficulty, has the characteristics of high cutting efficiency, less generated secondary waste amount and the like, can realize remote cutting control, and can reduce the radioactive irradiation risk.
Example 3
The present embodiment discloses a cutting system for a steam generator/pressurizer, comprising the cutting device for a radioactive container of embodiment 2, and a control device, wherein: the cutting device of the radioactive container is used for cutting the steam generator/the voltage stabilizer; the control device is used for controlling the cutting device of the radioactive container.
In particular, the control device preferably employs a remote controller for remote control to reduce the risk of radioactive irradiation. The plasma cutting machine is preferably adopted as the cutting machine, the cutting speed is high, and the generated secondary waste is less.
The following details the cutting process of the steam generator and pressurizer, as follows:
(1) steam generator cutting
Dividing the voltage stabilizer into cutting areas as shown by dotted lines in fig. 5, and welding lifting lugs on the cutting areas;
starting the cutting machine 2, rotating the rolling mechanism 5, and performing radial cutting along the radial direction of the voltage stabilizer according to the divided cutting area, wherein the steam generator seal head 42 is cut off, and then the rest steam generator cylinder 41 is radially cut to obtain a first section waste section;
as shown in fig. 6, the cutting machine 2 is moved, then the axial cutting is performed along the axial direction of the first waste segment, the rolling mechanism 5 is rotated to rotate the waste segment clockwise or counterclockwise by 120 ° along the axis (symmetry axis), then the axial cutting is performed again along the axial direction of the first waste segment to obtain a first waste piece, then the rolling mechanism 5 is rotated again to rotate the remaining first waste segment further clockwise or counterclockwise by 120 ° along the symmetry axis, then the axial cutting is performed along the axial direction of the first waste segment to cut the remaining first waste segment into two parts to obtain a second waste piece and a third waste piece, and the first waste piece, the second waste piece and the third waste piece are hoisted to a hanging basket to be stacked;
continuing to perform radial cutting on the rest steam generator cylinder 41 according to the cutting steps to obtain a second waste section and a third waste section, and then performing axial cutting on the second waste section and the third waste section respectively to obtain corresponding waste pieces;
lifting the steam generator end enclosure 42 and each waste sheet into a hanging basket for stacking;
and transferring the hanging basket stacked with the waste sheets to a steel box for sealing and storing, and then transporting to a waste disposal point for disposal.
(2) Stabilizer cutting
Dividing the voltage stabilizer into cutting areas as shown by dotted lines in fig. 7, and welding lifting lugs on the cutting areas;
starting the cutting machine 2, rotating the rolling mechanism 5, and firstly performing radial cutting along the radial direction of the voltage stabilizer according to the divided cutting area, wherein a voltage stabilizer end socket 44 is cut off, and then the rest voltage stabilizer cylinder 43 is radially cut to obtain a first section of waste material section;
as shown in fig. 8, moving the cutting machine 2, performing axial cutting along the axial direction of the first waste segment, rotating the rolling mechanism 5 to rotate the waste segment clockwise or counterclockwise by 120 ° along the axis (symmetry axis), performing axial cutting again along the axial direction of the first waste segment to obtain a first waste piece, then rotating the rolling mechanism 5 again to continue rotating the remaining first waste segment clockwise or counterclockwise by 120 ° along the symmetry axis, performing axial cutting along the axial direction of the first waste segment to cut the remaining first waste segment into two parts to obtain a second waste piece and a third waste piece, and lifting the first waste piece, the second waste piece and the third waste piece to a basket for stacking;
the remaining pressurizer cylinder 43 is continuously subjected to radial cutting according to the cutting steps to obtain a second waste section and a third waste section, and then the second waste section and the third waste section are respectively subjected to axial cutting to obtain corresponding waste sheets;
the end sockets 44 of the voltage stabilizer and all waste pieces are hoisted into a hanging basket for stacking;
and transferring the hanging basket stacked with the waste sheets to a steel box for sealing and storing, and then transporting to a waste disposal point for disposal.
Compared with the prior art, the cutting system of the steam generator/voltage stabilizer can easily cut radioactive containers (especially large radioactive containers), greatly reduces the cutting difficulty, has the characteristics of high cutting efficiency and less generated secondary waste, can perform remote control operation, and can reduce the radioactive irradiation risk.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (11)
1. A method of cutting a radioactive container, comprising the steps of:
planning a cutting path to divide the radioactive container into a plurality of cutting areas;
respectively carrying out radial cutting and axial cutting on the radioactive container according to each divided cutting area until waste sheets of each cutting area are obtained;
the waste pieces are reconditioned.
2. The method of claim 1, wherein the planning the cutting path comprises: setting a cutting path according to the structure of the radioactive container and the distribution of the radioactive region and the non-radioactive region of the radioactive container;
the reconditioning of the waste sheet comprises: and (4) loading the waste sheets into a steel box for sealing and storing, and then sending the steel box into a waste disposal warehouse for disposal.
3. The method for cutting a radioactive container according to claim 2, wherein the step of respectively performing radial cutting and axial cutting on the radioactive container in each of the divided cutting areas until obtaining the waste sheet of each of the cutting areas comprises:
the radioactive container is first radially cut along the vertical edges of the respective cutting zones to divide the radioactive container into a plurality of waste segments, and then each waste segment is axially cut along the lateral edges of each cutting zone to divide each waste segment into a plurality of waste pieces.
4. A method for cutting a radioactive container according to claim 3, wherein the radioactive container is rotated along its axis during the radial cutting and the axial cutting of the radioactive container, respectively.
5. The method of cutting a radioactive container according to claim 2, further comprising: lifting lugs are respectively welded on each cutting area,
when cutting, the lifting hook is adopted to hook the lifting lug on the cutting area to be cut from the radioactive container,
after cutting, stacking all the cut waste sheets in a special hanging basket, and then putting the waste sheets and the hanging basket into a steel box together for sealing.
6. A cutting device of radioactive container is characterized by comprising a cutting machine (2), a cutting machine bracket (1) and a cutting bench (3),
the cutting stand is used for placing a radioactive container (4);
the cutting machine support comprises a support base (11) and a movable supporting component,
the cutting machine is arranged on the movable supporting component which is arranged on the bracket base,
the movable supporting assembly can move on the bracket base along a first horizontal direction so as to drive a cutting machine to axially cut the radioactive container;
the cutting machine can move on the movable supporting assembly along a second horizontal direction so as to drive the cutting machine to radially cut the radioactive container.
7. A radioactive container cutting apparatus according to claim 6, wherein the first horizontal direction is parallel to an axial direction of the radioactive container, the second horizontal direction is perpendicular to the first horizontal direction,
the support base is arranged on the side edge of the cutting rack, a sliding rail (111) is arranged on the support base, and the sliding rail is arranged in parallel with the axial direction of the radioactive container;
the movable support component comprises a vertical support piece (12), a horizontal support piece (13) and an implement mounting seat (14),
the vertical supporting piece is arranged on the sliding rail in a sliding way,
the length direction of the horizontal supporting piece is parallel to the second horizontal direction and is positioned above the cutting rack, one end of the horizontal supporting piece is connected with the vertical supporting piece,
the cutting machine is arranged on the machine mounting seat, and the machine mounting seat is arranged on the horizontal supporting piece in a sliding mode.
8. The radioactive container cutting apparatus according to claim 7, further comprising a drive mechanism including a first drive unit and a second drive unit,
the first driving unit is connected with the vertical supporting piece so as to drive the vertical supporting piece to move on the sliding rail;
the second driving unit is connected with the machine tool mounting seat to drive the cutting machine tool to move along the length direction of the horizontal supporting piece.
9. The radioactive container cutting apparatus according to claim 8, wherein the horizontal support is slidably connected to the vertical support, and the horizontal support is movable along a length of the vertical support;
the driving mechanism further comprises a third driving unit, and the third driving unit is connected with the horizontal supporting piece so as to drive the horizontal supporting piece to move along the length direction of the vertical supporting piece.
10. The radioactive container cutting apparatus according to claim 9, further comprising a rolling mechanism (5),
the rolling mechanism is arranged on the cutting rack, and the emitter container is arranged on the rolling mechanism so as to enable the emitter container to rotate along the axis of the emitter container;
the driving mechanism further comprises a fourth driving unit, and the fourth driving unit is connected with the rolling mechanism and used for driving the rolling mechanism to roll.
11. A steam generator/stabiliser cutting system comprising the radioactive container cutting apparatus of claims 6 to 9, and control means,
the cutting device of the radioactive container is used for cutting the steam generator/voltage stabilizer;
the control device is used for controlling the cutting device of the radioactive container,
the cutting machine of the cutting device of the radioactive container adopts a plasma cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687322.8A CN113351969A (en) | 2021-06-21 | 2021-06-21 | Cutting method, device and system for radioactive container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687322.8A CN113351969A (en) | 2021-06-21 | 2021-06-21 | Cutting method, device and system for radioactive container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113351969A true CN113351969A (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951898A (en) * | 2022-05-19 | 2022-08-30 | 苏州热工研究院有限公司 | Radioactive metal waste thermal cutting device and thermal cutting method |
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| CN114951898A (en) * | 2022-05-19 | 2022-08-30 | 苏州热工研究院有限公司 | Radioactive metal waste thermal cutting device and thermal cutting method |
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