CN114109125A - Sliding-form construction method for ultrahigh variable-diameter chimney - Google Patents
Sliding-form construction method for ultrahigh variable-diameter chimney Download PDFInfo
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- CN114109125A CN114109125A CN202111473360.XA CN202111473360A CN114109125A CN 114109125 A CN114109125 A CN 114109125A CN 202111473360 A CN202111473360 A CN 202111473360A CN 114109125 A CN114109125 A CN 114109125A
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- Prior art keywords
- chimney
- construction method
- pouring
- layer
- cylinder wall
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000007306 turnover Effects 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims description 15
- 238000009415 formwork Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000009751 slip forming Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 150000001336 alkenes Chemical group 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 1
Images
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
- E04G11/24—Construction of lifting jacks or climbing rods for sliding forms
-
- 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
- E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts
-
- 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
- E04H12/341—Arrangements for casting in situ concrete towers or the like
Abstract
The invention discloses a sliding-mode construction method of an ultrahigh variable-diameter chimney, wherein the chimney is of a variable-diameter structure, the manufacturing method comprises the steps of performing turnover construction and pouring on the wall of the chimney through a hydraulic lifting platform system, the turnover construction adopts an outer template and an inner template which are matched to pour the shape of the wall of the chimney, after the pouring of each mould is completed, the hydraulic lifting platform system lifts one layer, then the second mould pouring is performed, the first layer is lifted one by one and the pouring is performed until the pouring of the wall of the whole chimney layer by layer is completed, and the sliding-mode construction method is beneficial to saving materials and manpower and is beneficial to continuous operation.
Description
Technical Field
The invention relates to the technical field of chimney manufacturing, in particular to a sliding-form construction method for an ultrahigh variable-diameter chimney.
Background
The existing chimney is constructed by a supporting template and a scaffold, the construction method needs a large amount of materials and manpower and is particularly not suitable for the construction of an ultrahigh chimney, and the ultrahigh chimney is a chimney with the height of about 100 meters or even more than 100 meters.
Disclosure of Invention
The invention aims to provide a sliding-form construction method for an ultra-high variable-diameter chimney, which is used for performing rollover construction and pouring on the chimney through a hydraulic lifting platform system, is beneficial to saving materials and manpower and is beneficial to continuous operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ultrahigh diameter-variable chimney slip-form construction method comprises the following steps of:
s1: pouring concrete into a foundation;
s2: building a hydraulic lifting platform system;
s3: performing rollover construction and pouring on the cylinder wall of the chimney through a hydraulic lifting platform system;
the method comprises the following steps of performing rollover construction, namely pouring the shape of the cylinder wall by matching an outer template with an inner template, lifting one layer by a hydraulic lifting platform system after pouring of each template is completed, then performing second-template pouring, lifting one layer by one layer and pouring until the pouring of the cylinder wall of the whole chimney is completed layer by layer.
In some embodiments, the hydraulic lift platform system includes a support bar, a jack, an inner hanger and an outer hanger;
the supporting rods are connected with the cylinder wall, each layer of chimney is provided with the supporting rods, the jacks are connected above the supporting rods, and the output ends of the jacks are in driving connection with the inner hanging bracket and the outer hanging bracket.
In some embodiments, the hydraulic lift platform system further comprises a drum, a radiant beam, a derrick, and a cage;
the radiation beam is arranged in a manner of radiating outwards from the center of the wall of the chimney and is arranged above the wall of the chimney;
the drum barrel is arranged below the radiation beam;
the derrick is arranged above the radiation beam;
the derrick is connected with the suspension cage;
the output end of the jack is connected with the radiation beam;
the inner hanger and the outer hanger are both connected with the radiation beam.
In some embodiments, both the outer and inner formworks are coated with a release agent.
In some embodiments, the outer form is reinforced by a plurality of turns of wire rope.
In some embodiments, the inner die plate is reinforced by a wire rod.
In some embodiments, the manufacturing method further includes step S4; s4: and building a lining on the inner wall of the cylinder wall.
In some embodiments, the inner lining is constructed from lining bricks of refractory material.
In some embodiments, when the masonry height of the lining is more than 500mm, the perlite plate with the heat insulation function is added.
The invention has the beneficial effects that: according to the manufacturing method, the chimney is cast through the turnover construction of the hydraulic lifting platform system, so that the material and labor are saved, and the continuous operation is facilitated.
Drawings
FIG. 1 is a block diagram of the stack of a DMTO methanol to olefins unit of the present invention;
FIG. 2 is a block diagram of the base of the chimney of a DMTO methanol to olefins unit of the present invention;
FIG. 3 is a cross-sectional view of the outer and inner formworks of the present invention;
FIG. 4 is a block diagram of the hydraulic lift platform system of the present invention;
FIG. 5 is a top view of the radiation beam of the present invention;
FIG. 6 is a connecting structure diagram of the exterior mold plate of the present invention;
wherein: 1-a base; 2-hydraulic lifting platform system; 21-a drum; 22-a radiation beam; 23-an inner hanger; 24-an outer hanger; 25-a derrick; 26-a suspension cage; 27-a support bar; 28-jack; 3-external template; 4-inner template; 5-a chimney; 51-the wall of the cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, in the ultra-high diameter-variable chimney slip-form construction method, the chimney 5 is of a diameter-variable structure, the gradient of the structure is approximately equal to 2%, the outer diameter is gradually reduced from bottom to top, the outer diameter of the bottom is the largest, the size is about 6-7 meters, the outer diameter of the top is the smallest, the size is about 2-3 meters, and the height of the chimney is about 101 meters.
The manufacturing method comprises the following steps:
s1: pouring concrete to form a foundation 1;
s2: building a hydraulic lifting platform system 2;
s3: performing rollover construction and pouring on the cylinder wall 51 of the chimney 5 through the hydraulic lifting platform system 2;
the rollover construction adopts the outer template 3 and the inner template 4 to be matched to pour the shape of the cylinder wall 51, after each mold is poured, the hydraulic lifting platform system 2 lifts one layer, then the second mold is poured, and the layers are lifted one by one and poured until the pouring of the cylinder wall 51 of the whole chimney 5 is finished layer by layer;
the hydraulic lifting platform system 2 comprises a support rod 27, a jack 28, an inner hanger 23 and an outer hanger 24;
the supporting rods 27 are connected with the cylinder wall 51, each layer of the chimney 5 is provided with the supporting rods 27, the jacks 28 are connected above the supporting rods 27, and the output ends of the jacks 28 are in driving connection with the inner hanger 23 and the outer hanger 24.
After the foundation 1 is poured, the hydraulic lifting platform system 2 is built, the outer formwork 3 and the inner formwork 4 are built to pour a first formwork, namely a first layer of the cylinder wall 51 of the chimney 5 is poured, during pouring, the supporting rod 27 of the hydraulic lifting platform system 2 is connected to the inner part of the cylinder wall 51 and fixed through pouring, so that a lifting fulcrum of the hydraulic lifting platform system 2 is formed, the supporting column is used for supporting the jack 28, after the first layer of the chimney 5 is poured, the jack 28 jacks the hydraulic lifting platform system 2, so that the outer formwork 3 and the inner formwork 4 of a second layer of the chimney 5 are built, second formwork pouring is carried out, the supporting rod 27 is also placed during second formwork pouring, the supporting rod 27 is used as a new fulcrum of the jack 28, and by analogy, the cylinder wall 51 of the chimney 5 is poured layer by layer, and the hydraulic lifting platform system 2 is jacked through the newly poured cylinder wall 51, compared with the existing manufacturing method, the method saves a supporting template and a scaffold, saves a large amount of materials and labor, and keeps continuous operation in construction, so that various procedures are simplified, the construction speed is high, the mechanization degree is high, and the labor intensity is low.
The outer template 3 is composed of a plurality of arc-shaped plate bodies, the edge part of each plate body is provided with a folding edge, the folding edge is provided with a connecting hole, and each plate body is connected through the folding edge and is enclosed into a circle; the inner template 4 is composed of a plurality of arc-shaped plate bodies, the edge part of each plate body is provided with a collecting edge, the collecting edge is provided with a connecting hole, and each plate body is connected with the other plate body through the collecting edge and is enclosed into a circle. The height of the outer formwork 3 and the height of the inner formwork 4 can be set to be about 1.6 m, and thus, the pouring height of each layer can reach about 1.5 m.
Because the chimney 5 is of a reducing structure, the ring diameters of the outer template 3 and the inner template 4 are gradually reduced, the outer template 3 and the inner template 4 of the same specification can be applied to two adjacent layers, and after pouring is finished, the outer template 3 and the inner template 4 are subjected to turnover type demolding or mold opening, so that the surface of the lifting cylinder wall 51 is smooth and flat.
Further explaining, the hydraulic lifting platform system 2 further comprises a drum 21, a radiation beam 22, a derrick 25 and a suspension cage 26;
the radiation beams 22 are arranged in a way of radiating outwards from the center of the cylinder wall 51 of the chimney 5 and are arranged above the cylinder wall 51;
the drum 21 is arranged below the radiation beam 22;
the derrick 25 is arranged above the radiant beam 22;
the derrick 25 is connected with the suspension cage 26;
the output end of the jack 28 is connected with the radiation beam 22;
both the inner hanger 23 and the outer hanger 24 are connected to the radiant beam 22.
Further, the outer mold plate 3 and the inner mold plate 4 are both coated with a release agent. The rubber mold agent is beneficial to demolding the outer mold plate 3 and the inner mold plate 4 and is beneficial to ensuring the smoothness of the surface of the cylinder wall 51, and preferably, the mold agent can be engine oil.
Further, the outer formwork 3 is reinforced by a plurality of turns of steel wire rope, which may be provided with 12 turns.
Further explaining, the inner template 4 is reinforced by a wire drawing rod, and the inner side of the inner template 4 can be welded with a square pipe for connecting the wire drawing rod.
S4: the lining is built on the inner wall of the cylinder wall 51.
Further, the lining is built by lining bricks made of refractory materials.
Further, when the masonry height of the lining is more than 500mm, the perlite plate with the heat insulation function is added.
The foregoing disclosure discloses only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (9)
1. The ultrahigh diameter-variable chimney slip-form construction method is characterized in that the chimney (5) is of a diameter-variable structure, and the manufacturing method comprises the following steps:
s1: concrete pouring foundation (1);
s2: building a hydraulic lifting platform system (2);
s3: performing rollover construction and pouring on the cylinder wall (51) of the chimney (5) through the hydraulic lifting platform system (2);
the shape of the cylinder wall (51) is poured by matching the outer template (3) and the inner template (4) in the turnover construction, after the pouring of each mold is finished, the hydraulic lifting platform system (2) lifts one layer, then the second mold pouring is carried out, and the first layer is lifted one layer after another and poured until the pouring of the cylinder wall (51) of the whole chimney (5) is finished layer by layer.
2. The ultra-high variable diameter chimney slip-form construction method as claimed in claim 1, characterized in that the hydraulic lifting platform system (2) comprises a support rod (27), a jack (28), an inner hanger (23) and an outer hanger (24);
the supporting rods (27) are connected with the cylinder wall (51), the supporting rods (27) are arranged on each layer of the chimney (5), the jacks (28) are connected above the supporting rods (27), and the output ends of the jacks (28) are in driving connection with the inner hanging frame (23) and the outer hanging frame (24).
3. The ultra-high variable diameter chimney slip-form construction method according to claim 2, characterized in that the hydraulic lifting platform system (2) further comprises a drum (21), a radiant beam (22), a derrick (25) and a suspension cage (26);
the radiation beams (22) are arranged in a manner of radiating outwards from the center of the cylinder wall (51) of the chimney (5) and are arranged above the cylinder wall (51);
the drum (21) is arranged below the radiation beam (22);
the derrick (25) is arranged above the radiation beam (22);
the derrick (25) is connected with the suspension cage (26);
the output end of the jack (28) is connected with the radiation beam (22);
the inner hanger (23) and the outer hanger (24) are both connected with the radiant beam (22).
4. The ultra-high variable diameter chimney slip-form construction method according to claim 1, characterized in that the outer form (3) and the inner form (4) are coated with a release agent.
5. The ultra-high variable diameter chimney slip-form construction method as claimed in claim 4, characterized in that the outer formwork (3) is reinforced by a plurality of turns of steel wire rope.
6. The ultrahigh diameter-variable chimney slip-form construction method according to claim 4, characterized in that the inner formwork (4) is reinforced by wire-drawing rods.
7. The ultra-high variable diameter chimney slip-form construction method according to claim 1, characterized in that the manufacturing method further comprises step S4;
s4: and a lining is built on the inner wall of the cylinder wall (51).
8. The ultra-high variable diameter chimney slip-form construction method according to claim 7, characterized in that the lining is built by lining bricks made of refractory materials.
9. The ultra-high variable diameter chimney slip-form construction method according to claim 8, characterized in that when the masonry height of the lining is higher than 500mm, a perlite plate with a heat insulation function is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473360.XA CN114109125A (en) | 2021-12-03 | 2021-12-03 | Sliding-form construction method for ultrahigh variable-diameter chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473360.XA CN114109125A (en) | 2021-12-03 | 2021-12-03 | Sliding-form construction method for ultrahigh variable-diameter chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114109125A true CN114109125A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111473360.XA Pending CN114109125A (en) | 2021-12-03 | 2021-12-03 | Sliding-form construction method for ultrahigh variable-diameter chimney |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587393A1 (en) * | 1985-09-17 | 1987-03-20 | Morel Roger | Method and device for constructing reinforced concrete chimneys |
| CN102535843A (en) * | 2011-12-16 | 2012-07-04 | 马鞍山钢铁建设集团有限公司 | Construction method of circular reinforced concrete chimney cylinder wall and hydraulic sliding mould device |
| CN206233576U (en) * | 2016-10-21 | 2017-06-09 | 中亿丰建设集团股份有限公司 | For the hydraulic pressure lift turnover formwork construction device of bundled-tube structure chimney |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| CN110685433A (en) * | 2019-10-17 | 2020-01-14 | 鞍山三冶建筑工程有限公司 | Chimney construction device and construction method applying hydraulic lifting and rollover technology |
-
2021
- 2021-12-03 CN CN202111473360.XA patent/CN114109125A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587393A1 (en) * | 1985-09-17 | 1987-03-20 | Morel Roger | Method and device for constructing reinforced concrete chimneys |
| CN102535843A (en) * | 2011-12-16 | 2012-07-04 | 马鞍山钢铁建设集团有限公司 | Construction method of circular reinforced concrete chimney cylinder wall and hydraulic sliding mould device |
| CN206233576U (en) * | 2016-10-21 | 2017-06-09 | 中亿丰建设集团股份有限公司 | For the hydraulic pressure lift turnover formwork construction device of bundled-tube structure chimney |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| CN110685433A (en) * | 2019-10-17 | 2020-01-14 | 鞍山三冶建筑工程有限公司 | Chimney construction device and construction method applying hydraulic lifting and rollover technology |
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Application publication date: 20220301 |