CN114314292A - Method and facility for placing retired large-scale equipment in disposal unit - Google Patents
Method and facility for placing retired large-scale equipment in disposal unit Download PDFInfo
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- CN114314292A CN114314292A CN202111660286.2A CN202111660286A CN114314292A CN 114314292 A CN114314292 A CN 114314292A CN 202111660286 A CN202111660286 A CN 202111660286A CN 114314292 A CN114314292 A CN 114314292A
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Abstract
The invention provides a method and a facility for placing retired large-scale equipment in a disposal unit, wherein the method comprises the following steps: a lifting platform is arranged in the disposal unit, the lifting platform is lifted to the top part to extend out of the disposal unit, a heavy-duty crane is adopted to lift decommissioned large-scale equipment, under the condition that the heavy-duty crane still lifts the decommissioned large-scale equipment, the decommissioned large-scale equipment is lowered to the bottom surface of the decommissioned large-scale equipment to be abutted against the top surface of the lifting platform, then the lifting platform is lowered, meanwhile, the heavy-duty crane synchronously transfers the retired large-scale equipment until the lifting platform is abutted against the ground of the disposal unit, the heavy-duty crane unloads the retired large-scale equipment, the large-scale equipment can be accurately and stably placed in the original designed position in the disposal warehouse, thereby not only ensuring that the large-scale equipment is always in a horizontal and stable state in the process of being placed into the disposal unit, and the process is safe, reliable and economical, the engineering quantity for installing large-scale hoisting equipment is greatly reduced, and the space waste of the disposal unit is avoided.
Description
Technical Field
The invention relates to a method and a facility for placing large decommissioned equipment in a disposal unit.
Background
According to the design life calculation of the nuclear power generating unit operated at the present stage, the nuclear power retirement peak will appear between 20 years and 30 years in the future. In order to deal with the coming decommissioning peak of the nuclear power station, the relevant work of disposing the nuclear power decommissioned large-scale equipment is carried out as early as possible.
The key point of the decommissioned large-scale equipment is whether large-scale cutting is carried out, if a cutting processing scheme is selected, the subsequent processing work is relatively simple, the large-scale equipment cutting piece can be processed and prepared by a standard waste bag, and the subsequent transportation and the subsequent processing have no difficulty. If a treatment scheme for keeping the integrity of the large-scale equipment is selected, the following transportation and disposal of the large-scale equipment integrity need to be considered. Transportation of retired large-scale equipment can be performed by mainly referring to the transportation experience of large-scale equipment (large goods) at the beginning of construction of a nuclear power plant; the treatment of large-scale equipment can be carried out with little experience, and a series of work in the treatment process needs to be considered comprehensively and carefully, wherein one of the treatment units is how to stably and safely place the large-scale equipment.
At present, all low-level waste disposal sites in China are near-surface disposal sites, disposal libraries are of an overground type, a semi-overground type and an underground type, and unit cells are different in size. However, at present, no matter what type or size of the low-level disposal warehouse unit cell, the lifting device is designed for standard waste packaging, only standard waste packages can be lifted, and large-scale equipment cannot be lifted in the disposal unit. If large-scale equipment is to be disposed in the disposal unit, a heavy portal frame or two large-scale hydraulic cranes or a large-scale tower crane with a fixed point is needed, and the equipment is not only extremely large in engineering quantity and high in cost, but also high in requirement on bearing capacity of a foundation and possibly limited by the structure of the disposal unit and cannot be achieved. If the large-scale equipment needs to be separately disposed, the disposal unit needs to be separately built, so that the design and construction engineering quantity is larger, and the cost is higher.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for economically, safely and stably placing retired large-scale equipment in a disposal unit, and a facility for implementing the method, aiming at the above-mentioned defects in the prior art.
The technical scheme adopted for solving the technical problem of the invention is as follows:
the invention provides a method for placing retired large-scale equipment into a disposal unit, which comprises the following steps:
s1: a lifting platform is installed in the handling unit,
s2: lifting the lifting platform to the top of the lifting platform to extend out of the disposal unit, lifting the decommissioned large-scale equipment by using a heavy crane, lowering the decommissioned large-scale equipment to the bottom surface of the decommissioned large-scale equipment to be abutted against the top surface of the lifting platform under the condition that the heavy crane is still lifted to lift the decommissioned large-scale equipment, then lowering the lifting platform, synchronously lowering the decommissioned large-scale equipment by using the heavy crane, and lifting the decommissioned large-scale equipment by using the heavy crane after the lifting platform is abutted against the ground of the disposal unit.
Optionally, the step S1 specifically includes:
and arranging a partition wall in the disposal unit to separate a disposal room matched with the retired large-scale equipment in the disposal unit, and arranging the lifting platform in the disposal room.
Optionally, the two opposite walls of the treatment room are provided with a main frame and a lifting driving device, the lifting platform is connected with the main frame in a sliding manner, and the lifting driving device is connected with the lifting platform and used for driving the lifting platform to lift relative to the main frame.
Optionally, the method further comprises:
s3: and after the main frame and the lifting driving device are disassembled, a cement mortar layer is poured on the surface of the retired large-scale equipment in the disposal room.
Optionally, the step S1 further includes: and paving a low-density sand layer on the ground of the disposal room.
The invention also provides a facility for placing decommissioned large equipment in a disposal unit, comprising: a lifting platform and a heavy-duty crane,
the lifting platform is arranged in the treatment unit and can be lifted to the top to extend out of the treatment unit,
the heavy crane is used for hoisting the retired large-scale equipment, and lowering the retired large-scale equipment to the bottom surface of the retired large-scale equipment to be abutted against the top surface of the lifting platform under the condition that the retired large-scale equipment is still hoisted,
it is also used for synchronously lowering decommissioned large-scale equipment when the lifting platform descends,
the lifting platform is also used for hoisting the retired large-scale equipment after the lifting platform is abutted to the ground of the disposal unit.
Optionally, a partition wall is disposed in the disposal unit, and is used for partitioning a disposal room matched with retired large-scale equipment in the disposal unit, and the lifting platform is disposed in the disposal room.
Optionally, a main frame and a lifting driving device are arranged on two opposite walls of the treatment room, the lifting platform is slidably connected with the main frame, and the lifting driving device is connected with the lifting platform and used for driving the lifting platform to lift relative to the main frame.
Optionally, the system further comprises a pouring device, wherein the pouring device is arranged on the ground and is used for pouring a cement mortar layer on the surface of the large-scale retired equipment after the main frame and the lifting driving device are removed.
Optionally, the floor of the disposal room is paved with a low density sand layer.
According to the invention, the lifting platform is arranged in the disposal unit, after the lifting platform is lifted to the top of the lifting platform and extends out of the disposal unit, the decommissioned large-scale equipment is lifted and lowered onto the lifting platform by using the heavy-duty crane, and at the moment, the weight of the decommissioned large-scale equipment is mainly borne by the lifting force provided by the heavy-duty crane. And then the lifting platform is descended, meanwhile, the heavy crane synchronously transfers the decommissioned large-scale equipment to drive the decommissioned large-scale equipment to descend, in the descending process of the decommissioned large-scale equipment, the weight of the decommissioned large-scale equipment is still mainly borne by the lifting force provided by the heavy crane, the lifting platform guides the decommissioned large-scale equipment to slowly descend in a stable and horizontal state through supporting the decommissioned large-scale equipment, and after the lifting platform is abutted against the ground of the disposal unit, the heavy crane can completely transfer the decommissioned large-scale equipment onto the lifting platform through lifting the decommissioning large-scale equipment, so that the decommissioned large-scale equipment can be safely and stably placed in the disposal unit. Therefore, the large-scale equipment can be accurately and stably placed at the original designed position in the disposal warehouse only by arranging the heavy crane and the supportable lifting platform, so that the large-scale equipment is always in a horizontal and stable state in the process of being placed into the disposal unit, the process is safe, reliable and economical, the workload of installing the large-scale hoisting equipment is greatly reduced, and the subsequent normal operation of the original waste barrel hoisting device of the disposal warehouse is not influenced.
Drawings
FIG. 1 is a schematic structural diagram of a facility for placing decommissioned large equipment in a disposal unit according to the present invention;
FIG. 2 is a schematic operation diagram of the method for placing retired large equipment into a disposal unit according to the present invention.
FIG. 3 is a schematic view of the main frame anchored to the wall of the treatment room by wall bolts;
FIG. 4 is one of the assembling views of the main frame, the elevating platform and the elevating driving device;
fig. 5 is a second assembly view of the main frame, the lifting platform and the lifting driving device.
In the figure: 1. a main frame; 2. a dividing wall; 3. a lift drive; 4. a lifting platform; 5. a low density sand layer; 6. decommissioning the large-scale equipment; 7. a heavy duty crane; 8. a cement mortar layer.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 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.
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 may be interconnected between 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.
The invention provides a method for placing retired large-scale equipment into a disposal unit, which comprises the following steps:
s1: a lifting platform is installed in the handling unit,
s2: lifting the lifting platform to the top of the lifting platform to extend out of the disposal unit, lifting the decommissioned large-scale equipment by using a heavy crane, lowering the decommissioned large-scale equipment to the bottom surface of the decommissioned large-scale equipment to be abutted against the top surface of the lifting platform under the condition that the heavy crane is still lifted to lift the decommissioned large-scale equipment, then lowering the lifting platform, synchronously lowering the decommissioned large-scale equipment by using the heavy crane, and lifting the decommissioned large-scale equipment by using the heavy crane after the lifting platform is abutted against the ground of the disposal unit.
The invention also provides a facility for placing decommissioned large equipment in a disposal unit, comprising: a lifting platform and a heavy-duty crane,
the lifting platform is arranged in the treatment unit and can be lifted to the top to extend out of the treatment unit,
the heavy crane is used for hoisting the retired large-scale equipment, and lowering the retired large-scale equipment to the bottom surface of the retired large-scale equipment to be abutted against the top surface of the lifting platform under the condition that the retired large-scale equipment is still hoisted,
it is also used for synchronously lowering decommissioned large-scale equipment when the lifting platform descends,
the lifting platform is also used for hoisting the retired large-scale equipment after the lifting platform is abutted to the ground of the disposal unit.
Example 1:
as shown in fig. 1 and 2, the present embodiment provides a method for placing retired large equipment in a disposal unit according to a disposal unit structure of a near-surface disposal site, including:
s1: a lifting platform 4 is installed in the handling unit,
s2: lifting the lifting platform 4 to the top of the lifting platform to extend out of the disposal unit, lifting the decommissioned large-scale equipment 6 by using a heavy-duty crane 7, lowering the decommissioned large-scale equipment 6 to the bottom surface of the decommissioned large-scale equipment to abut against the top surface of the lifting platform 4 under the condition that the heavy-duty crane 7 still lifts the decommissioned large-scale equipment 6, then lowering the lifting platform 4, synchronously lowering the decommissioned large-scale equipment 6 by using the heavy-duty crane 7, and lifting the decommissioned large-scale equipment 6 by using the heavy-duty crane 7 after the lifting platform 4 abuts against the ground of the disposal unit.
From this, through installing lift platform 4 in handling the unit, rise lift platform 4 to its top and stretch out outside handling the unit, adopt heavy crane 7 with the large-scale equipment 6 of retirement handling and transfer to on lift platform 4, at this moment, the weight of the large-scale equipment 6 of retirement is mainly born by the lifting power that heavy crane 7 provided. And then the lifting platform 4 is descended, meanwhile, the heavy crane 7 synchronously transfers the decommissioned large-scale equipment to drive the decommissioned large-scale equipment 6 to descend, in the descending process of the decommissioned large-scale equipment 6, the weight of the decommissioned large-scale equipment is still mainly born by the lifting force provided by the heavy crane 7, the decommissioned large-scale equipment 6 is guided to slowly descend in a stable and horizontal state through the support of the lifting platform 4 on the decommissioned large-scale equipment, and after the lifting platform 4 is abutted against the ground of the disposal unit, the heavy crane 7 can completely transfer the decommissioned large-scale equipment 6 onto the lifting platform 4 by releasing the lifting of the decommissioned large-scale equipment 6, so that the decommissioned large-scale equipment 6 can be safely and stably placed in the disposal unit. Therefore, the large-scale equipment can be accurately and stably placed at the original designed position in the disposal warehouse only by equipping one heavy crane and the liftable supporting platform, so that the large-scale equipment is ensured to be always in a horizontal and stable state in the process of being placed into the disposal unit, the process is safe, reliable and economical, the workload of installing large-scale hoisting equipment is greatly reduced, and the subsequent normal operation of the original waste barrel hoisting device in the disposal warehouse is not influenced.
In this embodiment, step S1 specifically includes:
a partition wall 2 is provided in the disposal unit to partition a disposal room matching the decommissioned large-scale equipment 6 in the disposal unit, and a lifting platform 4 is provided in the disposal room.
Preferably, the disposal units of the disposal warehouse located at the edge are used for placing the retired large-scale equipment. According to the size of the ex-service large-scale equipment package, the position, the size and the height of the partition wall are designed (the height of the disposal unit is not exceeded), and then the partition wall is built.
The dividing wall 2 separates the space in which the decommissioned large equipment 6 is placed from other spaces of the disposal unit that can continue to dispose of standard waste bags.
In this embodiment, all be equipped with main frame 1 and lift drive arrangement 3 on handling the relative two sides wall in room, lift platform 4 slides with main frame 1 and links to each other, and lift drive arrangement 3 links to each other with lift platform 4 for drive lift platform 4 goes up and down relative main frame 1.
As shown in fig. 2, after the heavy-duty crane 7 lifts the decommissioned large-scale equipment 6 to the lifting platform 4, the lifting driving device 3 is started, and in the process of driving the lifting platform 4 to descend, the heavy-duty crane 7 and the lifting platform 4 drive the decommissioned large-scale equipment 6 to slowly move downwards in a stable and horizontal state. Until the lifting platform 4 is stably lowered onto the low-density sand layer 5 laid on the floor of the disposal room, the lifting driving device 3 is closed.
In this embodiment, the method further includes:
s3: the heavy-duty crane 7 is removed, the main frame 1 and the lifting driving device 3 are dismantled (can be recycled), and a cement mortar layer 8 is poured on the surface of the retired large-scale equipment 6. After the cement mortar is solidified, a standard waste bag can be placed on the retired large-scale equipment to optimize the disposal space of the disposal unit.
Example 2:
as shown in fig. 1 and 2, the present embodiment provides a facility for placing retired large equipment in a disposal unit, including: a lifting platform 4 and a heavy-duty crane 7,
the lifting platform 4 is placed in the handling unit and can be lifted to the top to extend out of the handling unit,
the heavy crane 7 is used for hoisting the decommissioned large-scale equipment 6, and lowering the decommissioned large-scale equipment 6 to the bottom surface of the decommissioned large-scale equipment to be abutted against the top surface of the lifting platform 4 under the condition that the decommissioned large-scale equipment 6 is still hoisted,
it is also used for synchronously lowering the decommissioned large-scale equipment 6 when the lifting platform 4 descends,
it is also used to remove the hoisting of the decommissioned large equipment 6 after the lifting platform 4 is abutted against the ground of the disposal unit.
From this, through installing lift platform 4 in handling the unit, rise lift platform 4 to its top and stretch out outside handling the unit, adopt heavy crane 7 with the large-scale equipment 6 of retirement handling and transfer to on lift platform 4, at this moment, the weight of the large-scale equipment 6 of retirement is mainly born by the lifting power that heavy crane 7 provided. And then the lifting platform 4 is descended, meanwhile, the heavy crane 7 synchronously transfers the decommissioned large-scale equipment to drive the decommissioned large-scale equipment 6 to descend, in the descending process of the decommissioned large-scale equipment 6, the weight of the decommissioned large-scale equipment is still mainly born by the lifting force provided by the heavy crane 7, the decommissioned large-scale equipment 6 is guided to slowly descend in a stable and horizontal state through the support of the lifting platform 4 on the decommissioned large-scale equipment, and after the lifting platform 4 is abutted against the ground of the disposal unit, the heavy crane 7 can completely transfer the decommissioned large-scale equipment 6 onto the lifting platform 4 by releasing the lifting of the decommissioned large-scale equipment 6, so that the decommissioned large-scale equipment 6 can be safely and stably placed in the disposal unit. Therefore, the large-scale equipment can be accurately and stably placed at the original designed position in the disposal warehouse only by equipping one heavy crane and the liftable supporting platform, so that the large-scale equipment is ensured to be always in a horizontal and stable state in the process of being placed into the disposal unit, the process is safe, reliable and economical, the workload of installing large-scale hoisting equipment is greatly reduced, and the subsequent normal operation of the original waste barrel hoisting device in the disposal warehouse is not influenced.
The heavy duty crane 7 is preferably a hydraulic crane with a load of more than 300 tons.
In this embodiment, a partition wall 2 is provided in the disposal unit to separate a disposal room matching the retired large-scale equipment 6 in the disposal unit, and the lifting platform 4 is provided in the disposal room. The wall body is made of reinforced concrete, the thickness of the wall body is about 200-300 mm, and support is mainly provided for the lifting structure.
In this embodiment, a main frame 1 and a lifting driving device 3 are disposed on two opposite walls of the treatment room, a lifting platform 4 is slidably connected to the main frame 1, and the lifting driving device 3 is connected to the lifting platform 4 for driving the lifting platform 4 to lift relative to the main frame 1.
As shown in fig. 3-5, the steel structure of the assembled main frame 1, the lifting platform 4 and the lifting driving device 3 is similar to an attached lifting scaffold, the vertical main frame 1 installed on a wall plays a role of supporting, supporting and guiding, and the main frame 1 is mainly formed by welding a phi 48 steel pipe and a channel steel. The phi 48 steel pipe is a cross brace of the frame and is anchored on the wall body through a wall-through bolt, the channel steel is a vertical frame (guide rail), and a wall-attached support anti-tilting device is arranged between the main frame 1 and the wall body. The rest vertical frames are anchored on the wall surface through wall-penetrating bolts. The lifting platform 4 perpendicular to the wall body is used for placing the retired large-scale equipment 6, the lifting platform 4 is a rectangular frame, and a transverse steel pipe or a square pipe is welded in the middle of the rectangular frame. The lifting driving device 3 drives the horizontal frame for placing the retired large-scale equipment to slowly move downwards. In this embodiment, the lifting driving device 3 is an electric hoist, and the rated lifting capacity needs to be greater than 30 tons.
In this embodiment, the system further comprises a pouring device, wherein the pouring device is arranged on the ground and is used for pouring a cement mortar layer 8 on the surface of the retired large-scale equipment 6 after the main frame 1 and the lifting driving device 3 are removed. After the cement mortar is solidified, a standard waste bag can be placed on the retired large-scale equipment to optimize the disposal space of the disposal unit.
In this embodiment, the low-density sand layer 5 is laid on the ground of the disposal room to reduce the impact on the ground when the large-scale equipment and the horizontal frame fall to the ground of the disposal room.
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 (10)
1. A method of placing retired large equipment into a disposal unit, comprising:
s1: a lifting platform (4) is arranged in the handling unit,
s2: lifting the lifting platform (4) to the top of the lifting platform to extend out of the disposal unit, lifting the decommissioned large-scale equipment (6) by using the heavy-duty crane (7), lowering the decommissioned large-scale equipment (6) to the bottom surface of the decommissioned large-scale equipment and abut against the top surface of the lifting platform (4) under the condition that the heavy-duty crane (7) is kept to still lift the decommissioned large-scale equipment (6), lowering the lifting platform (4), synchronously lowering the decommissioned large-scale equipment (6) by using the heavy-duty crane (7), and removing the lifting of the decommissioned large-scale equipment (6) by using the heavy-duty crane (7) after the lifting platform (4) abuts against the ground of the disposal unit.
2. The method for placing decommissioned large equipment into a disposal unit according to claim 1, wherein the step S1 specifically comprises:
a partition wall (2) is arranged in the disposal unit to separate a disposal room matched with retired large-scale equipment (6) in the disposal unit, and the lifting platform (4) is arranged in the disposal room.
3. The method for placing decommissioned large equipment into a treatment unit according to claim 2, wherein a main frame (1) and a lifting driving device (3) are arranged on two opposite walls of the treatment room, the lifting platform (4) is slidably connected with the main frame (1), and the lifting driving device (3) is connected with the lifting platform (4) and used for driving the lifting platform (4) to lift relative to the main frame (1).
4. Method of placing decommissioned large scale equipment (6) in a disposal unit according to claim 3, further comprising:
s3: after the main frame (1) and the lifting driving device (3) are dismantled, a layer of cement mortar (8) is poured on the surface of the retired large-scale equipment in the disposal room.
5. The method of placing retired large scale equipment into a disposal unit of any of claims 1-4, wherein said step S1 further comprises: and laying a low-density sand layer (5) on the ground of the disposal room.
6. A facility for placing decommissioned large equipment in a disposal unit, comprising: a lifting platform (4) and a heavy-duty crane (7),
the lifting platform (4) is arranged in the treatment unit and can be lifted to the top to extend out of the treatment unit,
the heavy-duty crane (7) is used for hoisting the decommissioned large-scale equipment (6), and lowering the decommissioned large-scale equipment (6) to the bottom surface thereof to be abutted against the top surface of the lifting platform (4) under the condition that the decommissioned large-scale equipment (6) is still hoisted,
it is also used for synchronously putting out the retired large-scale equipment (6) when the lifting platform (4) descends,
the lifting platform is also used for hoisting the decommissioned large-scale equipment (6) after the lifting platform (4) is abutted to the ground of the disposal unit.
7. The facility for placing decommissioned large scale equipment (6) into a disposal unit according to claim 6, characterized in that a partition wall (2) is provided in the disposal unit for separating a disposal room matching the decommissioned large scale equipment (6) in the disposal unit, in which the lifting platform (4) is provided.
8. The facility for placing decommissioned large scale equipment (6) into a treatment unit according to claim 7, wherein the opposite walls of the treatment room are provided with a main frame (1) and a lifting driving device (3), the lifting platform (4) is slidably connected with the main frame (1), and the lifting driving device (3) is connected with the lifting platform (4) and used for driving the lifting platform (4) to lift relative to the main frame (1).
9. The installation for placing decommissioned large scale equipment (6) in a disposal unit according to claim 8, further comprising a pouring equipment located on the ground for pouring a layer of cement mortar (8) on the surface of the decommissioned large scale equipment (6) after the main frame (1) and the lifting drive (3) are removed.
10. Installation for placing decommissioned large scale equipment (6) in a disposal unit according to any of claims 6-9, characterized in that the ground of the disposal room is paved with a low density sand layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660286.2A CN114314292A (en) | 2021-12-30 | 2021-12-30 | Method and facility for placing retired large-scale equipment in disposal unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660286.2A CN114314292A (en) | 2021-12-30 | 2021-12-30 | Method and facility for placing retired large-scale equipment in disposal unit |
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| CN114314292A true CN114314292A (en) | 2022-04-12 |
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| CN202111660286.2A Pending CN114314292A (en) | 2021-12-30 | 2021-12-30 | Method and facility for placing retired large-scale equipment in disposal unit |
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| CN (1) | CN114314292A (en) |
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