CN119550012A - A method for replacing the top spray main pipe of an absorption tower - Google Patents
A method for replacing the top spray main pipe of an absorption tower Download PDFInfo
- Publication number
- CN119550012A CN119550012A CN202411927233.6A CN202411927233A CN119550012A CN 119550012 A CN119550012 A CN 119550012A CN 202411927233 A CN202411927233 A CN 202411927233A CN 119550012 A CN119550012 A CN 119550012A
- Authority
- CN
- China
- Prior art keywords
- main pipe
- lifting
- tower
- spraying main
- spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a method for replacing a spray main pipe on an absorption tower top layer, which comprises the steps of S1, arranging a movable trolley below the spray main pipe, S2, enabling one end of the spray main pipe to fall on the movable trolley, S3, arranging a first lifting device to pull the spray main pipe to the outside of a tower to a preset length through a lifting rope, S4, arranging a second lifting device to be communicated with the second lifting device through the lifting rope to jointly lift the spray main pipe out of the absorption tower, S5, transversely lifting the new spray main pipe to a preset position, enabling one end of the spray main pipe to extend into the tower and fall on the movable trolley, then removing the lifting of one side of the corresponding movable trolley of the spray main pipe, pushing the spray main pipe to move inwards of the tower, and S6, lifting the spray main pipe, connecting corresponding connecting pieces with two ends of the spray main pipe, and completing replacement of the spray main pipe. The invention solves the difficult problems of how to hoist the spray main pipe out of the tower and how to hoist the new spray main pipe back to the tower, and provides a new thought for the means of technical upgrading and reconstruction of the absorption tower.
Description
Technical Field
The invention relates to the technical field of maintenance of absorption towers, in particular to a method for replacing a main spray pipe at the top layer of an absorption tower.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The absorption tower is a common device in flue gas desulfurization treatment, and a plurality of spray layers distributed up and down are generally arranged in the absorption tower, and the main functions of the absorption tower are that slurry is sprayed from top to bottom to contact with flue gas to generate chemical absorption reaction, cool the flue gas and achieve the purpose of ultra-low emission.
At present, the technology upgrading and transformation on original equipment becomes a main melody, the transformation and the transformation of an absorption tower are also timely carried out, in the process of transforming and upgrading the absorption tower, a spray main pipe of a spray layer needs to be replaced, as the spray layer has multiple layers, a spray main pipe positioned at the lower layer can be used as a traction point, the spray main pipe positioned at the upper layer is gradually suspended out of the tower, but a demister layer is arranged above the spray main pipe positioned at the topmost layer, the bearing capacity of an end beam of the demister layer is insufficient to support the weight of the suspended spray main pipe (the diameter of the spray main pipe is 1 meter, the length of the spray main pipe is 14 meters, and the weight of the spray main pipe is about 7.5 tons), so that how the spray main pipe positioned at the topmost layer of the absorption tower is suspended out of the tower, and how a new spray main pipe is suspended back is a great difficulty that we have to directly face.
Disclosure of Invention
The invention mainly aims to provide a method for replacing a spray main pipe at the top layer of an absorption tower, which can hoist and transport a spray main pipe at the top layer of the absorption tower out of the tower and hoist and transport a new spray main pipe back to the absorption tower.
In order to achieve the purpose, the technical scheme of the invention is realized by the method for replacing the spraying main pipe of the top layer of the absorption tower, which comprises the following steps:
s1, a mobile trolley capable of moving along the length direction of a spraying main pipe is arranged below the spraying main pipe;
s2, removing connecting pieces at two ends of the spraying main pipe, enabling one end of the spraying main pipe to fall on a movable trolley, and enabling the movable trolley to move along with the spraying main pipe while supporting the end of the spraying main pipe;
S3, arranging a first lifting device, wherein the first lifting device is connected with one end of the spraying main pipe far away from the mobile trolley from the outside of the tower through a lifting rope, and pulls the spraying main pipe to a preset length outwards of the tower;
S4, arranging a second lifting device, wherein the second lifting device extends out of the tower from the outer side of the tower through a lifting rope and a spraying main pipe and is connected with one side close to the mobile trolley, and then lifting the absorption tower under the common lifting of the first lifting device and the second lifting device;
s5, transversely lifting the new spraying main pipe to a preset position, enabling one end of the spraying main pipe to extend into the tower and fall on the movable trolley, then removing lifting of one side of the corresponding movable trolley of the spraying main pipe, and pushing the spraying main pipe to move into the tower until the spraying main pipe moves to a preset length;
S6, lifting the spraying main pipe in a lifting manner, and connecting corresponding connecting pieces with two ends of the spraying main pipe to complete replacement of the spraying main pipe.
Further, in step S2, it includes:
S21, installing a lifting point A and a lifting point B in the tower wall, respectively arranging two lifting hoists, respectively connecting the lifting point A and the lifting point B, connecting the other ends of the two lifting hoists with two corresponding ends of a spraying main pipe, and enabling lifting ropes of the lifting hoist at the lifting point B to be inclined;
S22, removing connecting pieces at two ends of the spraying main pipe to enable the spraying main pipe to move along the length direction of the spraying main pipe and to be suspended in the tower under the action of two hoisting hoists, judging whether one end of the spraying main pipe is completely positioned in the tower and is in a suspended state at the moment, if so, entering a step S24, and if not, entering a step S23;
S23, starting a hoisting hoist at a hoisting point B, tightening a hoisting rope, pulling one end of a spraying main pipe outwards, correspondingly loosening the hoisting rope of the hoisting hoist at the hoisting point A, and keeping the spraying main pipe in a suspended state until the first end of the spraying main pipe completely enters the tower and is in a suspended state;
S24, moving the mobile trolley to the position below one end of the spraying main pipe in the tower, starting the hoisting hoist at the hoisting point A, and lowering one end of the spraying main pipe onto the mobile trolley.
Further, before step S3, the method further includes:
and starting the hoisting hoist at the hoisting point B to tighten the hoisting rope, and pulling one end of the spraying main pipe out of the tower by a preset length.
Further, in step S3, when the first lifting device pulls the main spray pipe out of the tower, the lifting hoist at the lifting point a is always connected with the end of the main spray pipe, so as to prevent the main pipe from rushing out of the tower.
Further, in step S5, the electric hoist is disposed on the lifting rope on one side of the corresponding travelling car on the spraying main pipe, and is used for changing the length of the lifting rope on one side, adjusting the suspension posture of the spraying main pipe, and after one end of the spraying main pipe extends into the tower and falls on the travelling car, making the lifting rope on the corresponding side in a loose state all the time, and releasing the lifting of one side of the corresponding travelling car of the spraying main pipe.
Further, in step S5, the hoisting hoist at the hanging point a is connected with the main spray pipe entering the tower, so as to drive the main spray pipe to move into the tower.
Further, in step S6, the shower main pipe is lifted by two lifting hoists.
Further, the bottom of travelling car is provided with the guide rail, the both ends and the body of a tower of guide rail are connected, travelling car removes on the guide rail, after spraying is responsible for the change and is accomplished, demolish guide rail and travelling car.
Further, the top of travelling car is provided with the rotation tray, the rotation tray can rotate relative travelling car to the end of bearing spraying main pipe.
The beneficial effects of the invention are as follows:
the invention supports one end of a spraying main pipe through a moving trolley and moves along with the spraying main pipe, the other end of the spraying main pipe is pulled out of a tower under the traction of a first lifting device and then is matched with a second lifting device, the spraying main pipe is lifted out of an absorption tower to finish the dismantling of the spraying main pipe, when a new spraying main pipe is installed, the new spraying main pipe is transversely lifted to a preset position, one end of the spraying main pipe extends into the tower and falls on the moving trolley, after a lifting rope on one end of the spraying main pipe is released, the spraying main pipe is pushed into the tower, and finally the spraying main pipe is moved to a designated installation position in a lifting manner and is connected with a corresponding connecting piece to finish the replacement of the spraying main pipe. The invention solves the difficult problems of how to hoist the spray main pipe out of the tower and how to hoist the new spray main pipe back to the tower, and provides a new thought for the means of technical upgrading and reconstruction of the absorption tower.
Drawings
In the drawings:
FIG. 1 is a position distribution diagram of a top layer spray main pipe replacement method of the absorption tower at a lifting point A and a lifting point B;
Fig. 2 is a state diagram of the first lifting device at the lifting point B in the present invention pulling one end of the main spray pipe out of the tower;
FIG. 3 is a diagram of the installation state of the new spray header of the present invention;
FIG. 4 is a diagram showing the position distribution of the main spray pipe and the absorption tower according to the present invention;
fig. 5 is a structural view of the traveling carriage according to the present invention.
Reference numerals illustrate:
1. A moving trolley; 11, a rotating tray, 2, a hoisting block, 3, an electric block and 4, a guide rail.
Detailed Description
The present invention will now be described in further detail with reference to the drawings and examples, wherein it is apparent that the examples described are only some, but not all, of the examples of the invention. All other embodiments of the absorber personnel without inventive effort, without conflict, fall within the scope of the invention.
See fig. 1 to 5.
The invention discloses a method for replacing a top layer spray main pipe of an absorption tower, which comprises the following steps:
s1, a mobile trolley 1 capable of moving along the length direction of a spraying main pipe is arranged below the spraying main pipe;
s2, removing connecting pieces at two ends of the spraying main pipe, enabling one end of the spraying main pipe to fall on the movable trolley 1, and enabling the movable trolley 1 to move along with the spraying main pipe while supporting the end of the spraying main pipe;
S3, arranging a first lifting device, wherein the first lifting device is connected with one end of a main spraying pipe far away from the mobile trolley 1 through a lifting rope from the outside of a tower (the tower is referred to as an absorption tower and is not explained in detail below), and the main spraying pipe is pulled out of the tower to a preset length;
S4, arranging a second lifting device, wherein the second lifting device extends out of the tower from the outer side of the tower through a lifting rope and a spraying main pipe and is connected with one side of the mobile trolley 1, and then lifting the absorption tower under the common lifting of the first lifting device and the second lifting device;
s5, transversely lifting the new spraying main pipe to a preset position, enabling one end of the spraying main pipe to extend into the tower and fall on the movable trolley 1, then removing lifting of one side of the corresponding movable trolley 1 of the spraying main pipe, and pushing the spraying main pipe to move into the tower until the spraying main pipe moves to a preset length;
S6, lifting the spraying main pipe in a lifting manner, and connecting corresponding connecting pieces with two ends of the spraying main pipe to complete replacement of the spraying main pipe.
In the concrete implementation, one end of a spraying main pipe on an absorption tower top layer is supported through the arrangement of a mobile trolley 1, the spraying main pipe drives the mobile trolley 1 to move together while moving, the other end of the spraying main pipe is pulled to a preset length outside a tower under the traction of a first lifting device, then the spraying main pipe is connected with one side of the spraying main pipe extending out of the tower and close to the mobile trolley 1 through a second lifting device, then the absorption tower is lifted out under the common lifting of the first lifting device and the second lifting device, the dismantling of the spraying main pipe is completed, when a new spraying main pipe is installed, the new spraying main pipe is transversely lifted to a preset position, one end of the spraying main pipe extends into the tower and falls on the mobile trolley 1, after a lifting rope at one end of the spraying main pipe is released, the spraying main pipe is pushed into the tower, the spraying main pipe in the tower is moved to a specified installation position under the final lifting, and is connected with a corresponding connecting piece, and the replacement of the spraying main pipe is completed.
The invention solves the difficult problems of how to hoist the spray main pipe out of the tower and how to hoist the new spray main pipe back to the tower, and provides a new thought for the means of technical upgrading and reconstruction of the absorption tower.
Preferably, the first lifting device and the second lifting device may be an automobile crane or other lifting devices in the prior art.
In one embodiment, step S2 includes:
S21, a lifting point A and a lifting point B are respectively arranged in the tower wall at the upper parts of the two ends of the spraying main pipe, two lifting hoists 2 are respectively connected with the lifting point A and the lifting point B, the other ends of the two lifting hoists 2 are connected with the two corresponding ends of the spraying main pipe, and the lifting ropes of the lifting hoists 2 at the lifting point B are inclined;
s22, removing connecting pieces at two ends of the spraying main pipe to enable the spraying main pipe to move along the length direction of the spraying main pipe and to be suspended in the tower under the action of the two hoisting hoists 2, judging whether one end of the spraying main pipe is completely positioned in the tower and is in a suspended state at the moment, if so, entering a step S24, and if not, entering a step S23;
s23, starting the hoisting hoist 2 at the hoisting point B, tightening the hoisting rope, and pulling one end of the spraying main pipe outwards, correspondingly loosening the hoisting rope of the hoisting hoist 2 at the hoisting point A, and keeping the spraying main pipe in a suspended state until the first end of the spraying main pipe completely enters the tower and is in a suspended state;
s24, moving the movable trolley 1 to the position below one end of the spraying main pipe in the tower, starting the hoisting hoist 2 at the hoisting point A, and lowering one end of the spraying main pipe onto the movable trolley 1.
In concrete implementation, the arrangement of the two hoisting hoists 2 can enable the spraying main pipe to be in a hanging state, so that the connecting pieces at the two ends of the spraying main pipe can be conveniently removed, and meanwhile, one of the hoisting ropes is inclined, so that the spraying main pipe can be pulled out of the tower by tightening the corresponding hoisting rope, one end of the spraying main pipe is completely located in the tower, and one end of the spraying main pipe is conveniently placed on the movable trolley 1.
Preferably, the hoist 2 may be a manual hoist or an electric hoist 3, and in view of the disadvantage that the space inside the absorption tower is not abundant and the electric hoist 3 is heavy, the manual hoist is preferable.
Preferably, in view of the small gap between a part of the absorption tower and the main spray pipe, holes can be formed at the positions of the absorption tower corresponding to the ends of the main spray pipe for the main spray pipe to move out of the absorption tower and for the inclination adjustment of the main spray pipe.
In one embodiment, before step S3, the method further includes:
And starting the hoisting hoist 2 at the hoisting point B to continuously tighten the hoisting rope until one end of the main spraying pipe is pulled out of the tower by a preset length. By means of the design, on one hand, the spraying main pipe is pulled out of the tower by the hoisting hoist 2 to be a preset length, so that the lifting rope on the first hoisting device is connected with the spraying main pipe, on the other hand, the first hoisting device is connected with the spraying main pipe through the lifting rope, so that the spraying main pipe is pulled upwards obliquely, if the length of the spraying main pipe in the tower is too long, the spraying main pipe is close to a horizontal state, the state can enable the obliquely upward pulling force to be difficult to pull the spraying main pipe to move, and if the length of the spraying main pipe in the tower is not too long, the spraying main pipe is pulled by the first hoisting device to generate a larger upward inclined angle, so that the pulling of the spraying main pipe is facilitated.
In an embodiment, in step S3, when the first lifting device pulls the main spray pipe out of the tower, the lifting hoist 2 at the lifting point a is always connected to the end of the main spray pipe, preventing the main pipe from being flushed out of the tower. By means of the design, the tail of the main spraying pipe can be pulled all the time through the hoisting hoist 2, the tower outlet speed of the main spraying pipe is controlled, the main pipe is prevented from rushing out of the tower suddenly, and the design is reasonable.
In one embodiment, in step S5, the spraying main pipe is lifted by the first lifting device and/or the second lifting device by two lifting ropes, the lifting rope on one side of the corresponding moving trolley 1 on the spraying main pipe is provided with the electric hoist 3, the electric hoist 3 is used for changing the length of the lifting rope on the side, adjusting the suspension posture of the spraying main pipe, and after one end of the spraying main pipe stretches into the tower and falls on the moving trolley 1, the lifting rope corresponding to the side is always in a loose state, and the lifting on one side of the corresponding moving trolley 1 of the spraying main pipe is released.
In the concrete implementation, the electric hoist 3 is positioned on the lifting rope close to one side of the movable trolley 1, the length of the corresponding lifting rope is changed through the electric hoist 3, the length of the lifting rope at the other side is unchanged, the length of the lifting rope at one side is changed, so that the suspension posture of the spraying main pipe can be changed, one end of the spraying main pipe is enabled to move up and down, the end of the spraying main pipe is enabled to be aligned with a through hole on the tower body and enter the tower, after one end of the spraying main pipe stretches into the tower and falls on the movable trolley 1, the weight of the spraying main pipe is borne by the movable trolley 1 and the other lifting rope, the lifting rope at the position of the electric hoist 3 is kept in a loose state, the lifting rope at the position of the electric hoist 3 can enter the tower along with the spraying main pipe, the movement of the spraying main pipe cannot be damaged, and after the end of the lifting rope at the position of the electric hoist 3 enters the tower body, the lifting rope at the position of the electric hoist can be separated from the spraying main pipe through workers.
Preferably, the electric hoist 3 is a remote control electric hoist 3, and the electric hoist 3 can be controlled to work in a remote control mode.
In one embodiment, in step S5, the main spray pipe is driven to move into the tower by connecting the hoist 2 at the lifting point a with the main spray pipe entering the tower.
In one embodiment, in step S6, the shower header is lifted by means of two lifting hoists 2.
In an embodiment, a guide rail 4 is disposed at the bottom of the mobile cart 1, two ends of the guide rail 4 are connected with the tower body, the mobile cart 1 moves on the guide rail 4, and after the replacement of the spraying main pipe is completed, the guide rail 4 and the mobile cart 1 need to be removed. In such a design, since the inner space of the absorption tower is limited and the sprayed water is corrosive, after the spraying main pipe is replaced, all the components correspondingly arranged are removed.
Preferably, the number of the guide rails 4 is two, and the bottom of the mobile trolley 1 is provided with rollers matched with the guide rails 4.
In one embodiment, a rotating tray 11 is arranged at the top of the mobile cart 1, and the rotating tray 11 can rotate relative to the mobile cart 1 and support the end of the spraying main pipe. By the design, the moving track of the spraying main pipe is not a straight line in the moving process, and the spraying main pipe can swing along with the moving track by rotating the tray 11, so that the lateral force of the spraying main pipe is prevented from being transmitted to the moving trolley 1, and the moving trolley 1 is prevented from derailing and deviating.
It should be noted that the specific structure of the rotating tray 11 is common knowledge of those skilled in the art, so the structure thereof will not be described in detail herein.
It should be noted that the technical scheme of the application can also be used for replacing the lower spray main pipe and replacing other large pipelines, and meanwhile, the technical scheme of the application is not limited to replacing the pipelines on the absorption tower, and can also be applied to any scene with the same installation form as the spray main pipe of the absorption tower.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
It should be noted that, in the embodiment of the present invention, directional indications (such as up and down) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, if there is a description of "first", "second", etc. in an embodiment of the invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed by the invention.
Claims (9)
1. The method for replacing the spray main pipe of the top layer of the absorption tower is characterized by comprising the following steps of:
S1, a mobile trolley (1) capable of moving along the length direction of a spraying main pipe is arranged below the spraying main pipe;
S2, removing connecting pieces at two ends of the spraying main pipe, enabling one end of the spraying main pipe to fall on the movable trolley (1), and enabling the movable trolley (1) to move along with the spraying main pipe while supporting the end of the spraying main pipe;
S3, arranging a first lifting device, wherein the first lifting device is connected with one end of a spraying main pipe far away from the mobile trolley (1) from the outside of the tower through a lifting rope, and pulls the spraying main pipe to a preset length outside the tower;
S4, arranging a second lifting device, wherein the second lifting device extends out of the tower from the outside of the tower through a lifting rope and is connected with one side of the spraying main pipe, which is close to the mobile trolley (1), and then lifting the absorption tower under the common lifting of the first lifting device and the second lifting device;
S5, transversely lifting the new spraying main pipe to a preset position, enabling one end of the spraying main pipe to extend into the tower and fall on the movable trolley (1), then removing lifting of one side of the corresponding movable trolley (1) of the spraying main pipe, and pushing the spraying main pipe to move into the tower until the spraying main pipe moves to a preset length;
S6, lifting the spraying main pipe in a lifting manner, and connecting corresponding connecting pieces with two ends of the spraying main pipe to complete replacement of the spraying main pipe.
2. The method for replacing a top spray header of an absorption tower according to claim 1, wherein in step S2, the method comprises:
s21, installing a lifting point A and a lifting point B in the tower wall, respectively arranging two lifting hoists (2) and connecting the lifting point A and the lifting point B, connecting the other ends of the two lifting hoists (2) with two corresponding ends of a spraying main pipe, and enabling lifting ropes of the lifting hoists (2) at the lifting point B to be inclined;
S22, removing connecting pieces at two ends of the spraying main pipe to enable the spraying main pipe to move along the length direction of the spraying main pipe and to be suspended in the tower under the action of the two hoisting hoists (2);
S23, starting a hoisting hoist (2) at a hoisting point B, tightening a hoisting rope, and pulling one end of a spraying main pipe outwards of the tower, correspondingly loosening the hoisting rope of the hoisting hoist (2) at the hoisting point A, and keeping the spraying main pipe in a suspended state until the first end of the spraying main pipe completely enters the tower and is in a suspended state;
S24, moving the movable trolley (1) to the position below one end of the spraying main pipe in the tower, starting the hoisting hoist (2) at the lifting point A, and lowering one end of the spraying main pipe onto the movable trolley (1).
3. The method for replacing a main spray pipe of an absorption tower top layer according to claim 2, further comprising, before step S3:
and starting a hoisting hoist (2) at the hoisting point B to tighten the hoisting rope, and pulling one end of the spraying main pipe out of the tower by a preset length.
4. The method according to claim 2, wherein in step S3, when the first lifting device pulls the main spray pipe out of the tower, the lifting hoist (2) at the lifting point a is always connected to the end of the main spray pipe, preventing the main spray pipe from being flushed out of the tower.
5. The method for replacing the spraying main pipe on the top layer of the absorption tower according to claim 2, wherein in the step S5, the lifting rope on one side of the corresponding moving trolley (1) on the spraying main pipe is provided with an electric hoist (3), the electric hoist (3) is used for changing the length of the lifting rope on one side, adjusting the suspension posture of the spraying main pipe, and after one end of the spraying main pipe stretches into the tower and falls on the moving trolley (1), the lifting rope corresponding to the side is always in a loose state, and the suspension on one side of the corresponding moving trolley (1) of the spraying main pipe is released.
6. The method for replacing the main spray pipe on the top layer of the absorption tower according to claim 2, wherein in the step S5, the main spray pipe is driven to move into the tower by connecting a hoisting hoist (2) at a hoisting point A with the main spray pipe entering the tower.
7. The method for replacing a main spray pipe on an absorption tower top layer according to claim 2, characterized in that in step S6, the main spray pipe is lifted by two lifting hoists (2).
8. The method for replacing the top-level spray main pipe of the absorption tower according to any one of claims 1 to 7, wherein a guide rail (4) is arranged at the bottom of the mobile trolley (1), two ends of the guide rail (4) are connected with the tower body, the mobile trolley (1) moves on the guide rail (4), and after the replacement of the spray main pipe is completed, the guide rail (4) and the mobile trolley (1) are removed.
9. The replacement method of the top-level spray main pipe of the absorption tower according to any one of claims 1 to 7, characterized in that a rotating tray (11) is arranged at the top of the mobile trolley (1), and the rotating tray (11) can rotate relative to the mobile trolley (1) and support the end part of the spray main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411927233.6A CN119550012B (en) | 2024-12-25 | 2024-12-25 | Method for replacing spraying main pipe on top layer of absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411927233.6A CN119550012B (en) | 2024-12-25 | 2024-12-25 | Method for replacing spraying main pipe on top layer of absorption tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119550012A true CN119550012A (en) | 2025-03-04 |
| CN119550012B CN119550012B (en) | 2025-11-07 |
Family
ID=94741962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411927233.6A Active CN119550012B (en) | 2024-12-25 | 2024-12-25 | Method for replacing spraying main pipe on top layer of absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119550012B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000214290A (en) * | 1999-01-21 | 2000-08-04 | Toshiba Corp | How to replace core spray piping |
| CN209758817U (en) * | 2019-02-25 | 2019-12-10 | 中天西北建设投资集团有限公司 | Special lifting device for pipeline |
| CN110844784A (en) * | 2019-11-29 | 2020-02-28 | 张家港宏昌钢板有限公司 | Auxiliary device for replacing blast furnace spray pipe and method for replacing spray pipe |
| CN218708782U (en) * | 2022-11-03 | 2023-03-24 | 中铁三局集团有限公司 | Shield constructs machine in-tunnel and disassembles system |
| CN220596831U (en) * | 2023-07-12 | 2024-03-15 | 四川大唐国际甘孜水电开发有限公司 | Dismounting tool for hydraulic generator brake air brake |
-
2024
- 2024-12-25 CN CN202411927233.6A patent/CN119550012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000214290A (en) * | 1999-01-21 | 2000-08-04 | Toshiba Corp | How to replace core spray piping |
| CN209758817U (en) * | 2019-02-25 | 2019-12-10 | 中天西北建设投资集团有限公司 | Special lifting device for pipeline |
| CN110844784A (en) * | 2019-11-29 | 2020-02-28 | 张家港宏昌钢板有限公司 | Auxiliary device for replacing blast furnace spray pipe and method for replacing spray pipe |
| CN218708782U (en) * | 2022-11-03 | 2023-03-24 | 中铁三局集团有限公司 | Shield constructs machine in-tunnel and disassembles system |
| CN220596831U (en) * | 2023-07-12 | 2024-03-15 | 四川大唐国际甘孜水电开发有限公司 | Dismounting tool for hydraulic generator brake air brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119550012B (en) | 2025-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101786577B (en) | Dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method | |
| CN110104564B (en) | A kind of bridge crane assembly process | |
| CN111287498B (en) | Protective scaffolding and erection method for box girder construction of viaduct across railway | |
| CN117216938A (en) | Design method of cable hoisting system for large-span upward-supporting concrete-filled steel tube arch bridge | |
| CN217555687U (en) | Hoisting accessory is changed to cladding material workshop electric block part | |
| KR20210149783A (en) | New lower trolley system | |
| CN112065023A (en) | Hanging basket traveling crane for nuclear reactor-based high-altitude outer wall operation | |
| CN119163246A (en) | A method for positioning and installing a multi-layer circular track curtain wall of a tower | |
| CN110760634A (en) | Blast furnace shell installation method | |
| CN119550012B (en) | Method for replacing spraying main pipe on top layer of absorption tower | |
| CN112158724A (en) | Telescopic track maintenance lifting appliance device | |
| CN102061681B (en) | Fixed dual-hoisting point cantilever track type joist truss installing method | |
| CN111379900B (en) | Method for installing indoor horizontal large flue of large sintering plant | |
| CN114835044B (en) | Factory equipment traction transportation equipment capable of randomly adjusting direction | |
| CN110747307A (en) | Large steam drum hoisting method in converter energy-saving and environment-friendly reconstruction | |
| CN201343379Y (en) | Crane used for maintenance of large-size wind power equipment | |
| CN117246927A (en) | In-building lifting equipment and construction methods for large unit curtain walls | |
| CN217996482U (en) | Hoisting device of assembled component | |
| CN211945971U (en) | Super-large span crane | |
| CN116374812A (en) | Generator lifting device for offshore wind turbine | |
| JPH04231509A (en) | Laying method for cable | |
| CN221116794U (en) | Gun carriage lifting device | |
| CN221543955U (en) | Climbing type crane with elevator installed on outer side | |
| CN222433961U (en) | Deviation rectifying mechanism of gantry crane | |
| CN223893240U (en) | A cable support device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |