CN215558536U - Double-machine lifting system for chimney internal structure construction - Google Patents
Double-machine lifting system for chimney internal structure construction Download PDFInfo
- Publication number
- CN215558536U CN215558536U CN202121939415.7U CN202121939415U CN215558536U CN 215558536 U CN215558536 U CN 215558536U CN 202121939415 U CN202121939415 U CN 202121939415U CN 215558536 U CN215558536 U CN 215558536U
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- CN
- China
- Prior art keywords
- chimney
- winch
- double
- tower crane
- lifting system
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 239000000725 suspension Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
Abstract
The utility model relates to the technical field of methods for erecting chimney bodies, and discloses a double-machine lifting system for chimney internal structure construction, which comprises a tower crane arranged close to a chimney and a winch with an upper head sheave arranged at the top of the chimney; the lifting hook of the tower crane and the lifting hook of the winch are respectively hooked on a member to be hoisted, and the tower crane and the winch are combined into a hoisting system. According to the utility model, the guide pulley is arranged at the top of the chimney and used as the upper head sheave of the winch, and the winch arranged on the ground and the tower crane form a lifting system, so that the overweight component is lifted smoothly without arranging two tower cranes; meanwhile, the tower crane and the sling of the winch are separated from each other up and down, so that the tower crane and the sling are not easy to be wound together due to overlong sling.
Description
Technical Field
The utility model relates to the technical field of methods for erecting chimney bodies, in particular to a double-machine lifting system for chimney internal structure construction.
Background
The chimney is a typical slender building, and wind and earthquake resistance of the chimney is difficult to achieve due to the self slender structure, so that a multi-pipe chimney is produced at the same time, a plurality of steel inner cylinders for smoke discharge are arranged in a concrete shell, the slenderness ratio of the whole chimney is greatly reduced, and after the chimneys are concentrated together, the heat contained in smoke discharged by the chimney is increased, the thermal buoyancy of the smoke is greatly increased, the rising height of the smoke is correspondingly increased, so that the effective height of the chimney can be increased, the smoke diffusion effect is enhanced, and the near-ground atmospheric pollution is reduced.
The steel inner cylinder is much thinner and longer than a chimney shell, even if the shell shields the wind, accidents such as shaking and the like are easy to happen, so for the chimney with the steel inner cylinder, a series of steel platforms including a suspension platform and a shaking prevention platform are required to be arranged in the chimney, the structure of the steel platforms becomes more complex along with the increase of the steel inner cylinder, and more steel components need to be hoisted during construction. In addition to the steel platform, a complex series of components including elevators are also provided in the chimney.
The installation of the components in the chimney must be carried out by means of a hoisting machine, and for most chimneys, the components are mainly hoisted by adopting a tower crane. However, as is well known, the tower crane looks bulky due to the height of the tower and the length of the suspension arm, and actually the maximum quality of single hoisting is not high, namely about 4 to 5 tons generally. When a component exceeding the maximum hoisting weight of the tower cranes appears in the chimney, two tower cranes are needed for hoisting, however, for chimney construction, only one tower crane is generally arranged, and the cost of the two tower cranes is too high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-machine lifting system for chimney internal structure construction.
The technical problem to be solved is that: the complex chimney such as a multi-pipe chimney has a plurality of components, when the components needing to be hoisted in the chimney exceed the maximum hoisting weight of the tower crane, two tower cranes are needed for hoisting, however, for chimney construction, only one tower crane is generally arranged.
In order to solve the technical problems, the utility model adopts the following technical scheme: a double-crane lifting system for chimney internal structure construction comprises a tower crane arranged close to a chimney and a winch with an upper head sheave arranged at the top of the chimney;
the lifting hook of the tower crane and the lifting hook of the winch are respectively hooked on a member to be hoisted, and the tower crane and the winch are combined into a hoisting system.
Furthermore, the winch is anchored on the ground through a ground anchor, the guide pulley anchored at the top of the chimney is used as an upper head sheave, and a sling of the winch upwards bypasses the guide pulley at the top of the chimney, then extends downwards and is hooked on a component to be hoisted through a lifting hook.
Furthermore, the winch is arranged outside the chimney shell, and a sling of the winch extends into the chimney shell and upwards extends after changing the direction through a guide pulley anchored on the ground of the chimney.
Furthermore, a steel platform is anchored at the top of the chimney, and a guide pulley at the top of the chimney is anchored on the steel platform.
Further, the steel platform includes girder steel and profiled steel sheet, and the leading sheave anchor at chimney top is on the girder steel.
Further, the chimney is a multi-pipe chimney with a steel inner cylinder, and the steel platform is a shaking stopping platform at the top of the chimney.
Furthermore, the sling of the tower crane extends downwards from the part, close to the tower body, of the suspension arm of the tower crane to enter the chimney shell.
Compared with the prior art, the double-machine lifting system for chimney internal structure construction has the following beneficial effects:
according to the utility model, the guide pulley is arranged at the top of the chimney and used as the upper head sheave of the winch, and the winch arranged on the ground and the tower crane form a lifting system, so that the overweight component is lifted smoothly without arranging two tower cranes; meanwhile, the tower crane and the sling of the winch are separated from each other up and down, so that the tower crane and the sling are not easy to be wound together due to overlong sling.
Drawings
FIG. 1 is a schematic view of a double-machine lifting system for chimney internal structure construction when lifting a component according to the present invention;
the method comprises the following steps of 1-chimney shell, 2-steel platform, 3-tower crane, 41-winch, 42-guide pulley and 43-sling.
Detailed Description
As shown in fig. 1, a double-crane lifting system for chimney internal structure construction comprises a tower crane 3 arranged close to a chimney, and a winch 41 with an upper head sheave arranged at the top of the chimney; the upper sheave here refers to the highest turntable in the whole winch 41, and may be a winch of the body of the winch 41 or one guide pulley 42.
The lifting hook of the tower crane 3 and the lifting hook of the winch 41 are respectively hooked on a member to be hoisted, and the tower crane 3 and the winch 41 are combined into a hoisting system.
In practical use, the hoisting machine 41 is more flexible than the tower crane 3 in use, so when hoisting a member not exceeding the maximum hoisting weight of the hoisting machine 41, the hoisting machine 41 can be used for hoisting, and the hoisting is not required to be carried out in a lifting and hoisting manner.
In this embodiment, the winch 41 is anchored on the ground through a ground anchor, the guide pulley 42 anchored on the top of the chimney is used as an upper head sheave, and the sling 43 of the winch 41 extends downward after passing upward around the guide pulley 42 on the top of the chimney and is hooked on a member to be hoisted through a hook.
Of course, the winch 41 may be directly disposed on the top of the chimney, but this brings about two problems, one is that the top of the chimney is not powered during construction, and an extra cable needs to be pulled for power supply, and the other is that the winch 41 itself, if disposed on the top of the chimney, increases the installation difficulty and greatly reduces the maximum hoisting weight of the winch 41.
The hoist 41 is provided outside the chimney casing 1, and a hoist rope 43 of the hoist 41 extends into the chimney casing 1, changes its direction by a guide pulley 42 anchored to the chimney floor, and then extends upward. Therefore, the construction space in the chimney can be prevented from being occupied, and the management is convenient.
The steel platform 2 is anchored on the top of the chimney, and the guide pulley 42 on the top of the chimney is anchored on the steel platform 2. The steel platform 2 comprises steel beams and profiled steel sheets, on which the guide pulleys 42 at the top of the chimney are anchored as stressed members.
Of course, in use herein, the guide pulleys 42 may be adjusted to the position on the steel beam as required to suspend the member as close as possible to the installation location.
In this embodiment, the chimney is a multi-pipe chimney with a steel inner cylinder, and the steel platform 2 is a shaking-stopping platform at the top of the chimney.
The sling 43 of the tower crane 3 extends downwards from the part of the suspension arm of the tower crane 3 close to the tower body to enter the chimney shell 1. The maximum hoisting weight of the tower crane 3 is different at different positions of the suspension arm, the maximum hoisting weight of the part close to the tower body is larger, the maximum hoisting weight of the part close to the overhanging end is very small and generally does not exceed one ton, so the sling 43 needs to extend downwards from the part of the suspension arm of the tower crane 3 close to the tower body to be fed into a chimney so as to obtain the maximum hoisting weight as large as possible.
A use method of a double-machine lifting system for chimney internal structure construction comprises the following steps:
the method comprises the following steps: a tower crane 3 is used for building a shaking-stopping platform at the highest position, and then a guide pulley 42 is installed on the shaking-stopping platform;
step two: installing the remaining components of the hoist 41;
step three: and hoisting a light member by using the hoist 41, and hoisting a heavy member by using the hoist 41 and the tower crane 3 to complete the installation of the internal structure of the chimney.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a duplex system of lifting by crane for chimney inner structure construction which characterized in that: comprises a tower crane (3) arranged close to a chimney and a winch (41) with an upper head sheave arranged at the top of the chimney;
the lifting hook of the tower crane (3) and the lifting hook of the winch (41) are respectively hooked on a member to be hoisted, and the tower crane (3) and the winch (41) are combined into a lifting system.
2. The double-crane lifting system for the construction of the internal structure of the chimney according to claim 1, wherein: the hoisting machine (41) is anchored on the ground through a ground anchor, a guide pulley (42) anchored at the top of the chimney is used as an upper head sheave, and a sling (43) of the hoisting machine (41) upwards bypasses the guide pulley (42) at the top of the chimney, then extends downwards and is hooked on a component to be hoisted through a lifting hook.
3. The double-crane lifting system for the chimney internal structure construction according to claim 2, wherein: the winch (41) is arranged outside the chimney shell (1), and a sling (43) of the winch (41) extends into the chimney shell (1) and upwards after changing the direction through a guide pulley (42) anchored on the ground of the chimney.
4. The double-crane lifting system for the chimney internal structure construction according to claim 2, wherein: the steel platform (2) is anchored at the top of the chimney, and the guide pulley (42) at the top of the chimney is anchored on the steel platform (2).
5. The double-crane lifting system for the chimney internal structure construction according to claim 4, wherein the double-crane lifting system comprises: the steel platform (2) comprises a steel beam and a profiled steel sheet, and a guide pulley (42) on the top of the chimney is anchored on the steel beam.
6. The double-crane lifting system for the chimney internal structure construction according to claim 5, wherein the double-crane lifting system comprises: the chimney is a multi-pipe chimney with a steel inner cylinder, and the steel platform (2) is a shaking-stopping platform at the top of the chimney.
7. The double-crane lifting system for the construction of the internal structure of the chimney according to claim 1, wherein: and a sling (43) of the tower crane (3) extends downwards from the part, close to the tower body, of the suspension arm of the tower crane (3) and enters the chimney shell (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121939415.7U CN215558536U (en) | 2021-08-18 | 2021-08-18 | Double-machine lifting system for chimney internal structure construction |
| DE202022103661.6U DE202022103661U1 (en) | 2021-08-18 | 2022-06-30 | Double machine lifting system for constructing the internal structure of a chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121939415.7U CN215558536U (en) | 2021-08-18 | 2021-08-18 | Double-machine lifting system for chimney internal structure construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215558536U true CN215558536U (en) | 2022-01-18 |
Family
ID=79836875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121939415.7U Active CN215558536U (en) | 2021-08-18 | 2021-08-18 | Double-machine lifting system for chimney internal structure construction |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215558536U (en) |
| DE (1) | DE202022103661U1 (en) |
-
2021
- 2021-08-18 CN CN202121939415.7U patent/CN215558536U/en active Active
-
2022
- 2022-06-30 DE DE202022103661.6U patent/DE202022103661U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202022103661U1 (en) | 2022-07-25 |
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