阅读说明：本技术 一种应用液压提升翻模技术的烟筒施工装置及施工方法 (Chimney construction device and construction method applying hydraulic lifting and rollover technology ) 是由 关宏生 张明月 张荣福 于 2019-10-17 设计创作，主要内容包括：本发明涉及一种应用液压提升翻模技术的烟筒施工装置及施工方法,包括液压提升平台系统、垂直运输系统和摇头扒杆系统。与现有技术相比,其有益效果是：该发明装置采用两套模板交替翻倒代替传统的单模板滑模施工工艺,具有设备体积小、重量轻的优点,可解决传统施工工艺施工进度慢、工程质量不易保证、安全性能差、工程成本高、工人劳动强度大,施工不方便的问题。(The invention relates to a chimney construction device and a construction method applying a hydraulic lifting and rollover technology. Compared with the prior art, its beneficial effect is: the device adopts two sets of templates to overturn alternately to replace the traditional single template slip form construction process, has the advantages of small equipment volume and light weight, and can solve the problems of slow construction progress, difficult guarantee of engineering quality, poor safety performance, high engineering cost, high labor intensity of workers and inconvenient construction of the traditional construction process.)

1. A chimney construction device applying a hydraulic lifting turnover formwork technology comprises a hydraulic lifting platform system, a vertical transportation system and an oscillating derrick mast system, and is characterized in that the hydraulic lifting platform system consists of a drum barrel, radiation beams, a suspension cable pull rod, a jack, a support rod, a guard rail, a protective net, an inner hanger, an outer hanger, a platform plate, a ring beam and a masonry platform, wherein the drum barrel is a hollow circular structural member, the radiation beams are uniformly distributed in a radial manner along the center line of the drum barrel, the inner end parts of the radiation beams are fixedly connected with the drum barrel through bolts, the outer end parts of the radiation beams are connected in series through the ring beam, two ring beams are arranged at the end close to the drum barrel to connect the radiation beams in pairs, the platform plate is paved, and the guard rail is arranged on the ring beam at the outermost end to form an operation platform; the suspension cable pull rods and the radiation beams are matched into a plurality of groups, each group comprises two suspension cable pull rods, one end of each suspension cable pull rod is hinged with the same point of the lower end part of the drum barrel, and the other end of each suspension cable pull rod is hinged with different points of the radiation beams; the jacks and the radiation beams are matched into a plurality of numbers and are arranged on the radiation beams right above the wall of the chimney, the push rods of the jacks are connected with one ends of the support rods, and the other ends of the support rods are propped against the wall of the chimney; the inner hanger and the outer hanger are symmetrically distributed on two sides of the wall of the chimney, the upper end parts of the inner hanger and the outer hanger are fixedly connected with the radiation beam, and the protective net is hung on the outer sides of the protective guard, the outer hanger and the inner hanger; the building platform is connected with a plurality of steel wire ropes and is hung below the radiation beam;

the vertical transportation system comprises a derrick, a suspension cage, a power-off band-type brake device, a top limit safety device, a pulley, a steel wire rope and a double-drum winch, wherein the derrick is arranged on a derrick seat positioned in the center of the wall of the chimney, the derrick is fixed with a steel bar ring embedded in the wall of the chimney at certain intervals through the steel wire rope II, the suspension cage is arranged in the derrick and can move up and down under the driving of the pulley, the steel wire rope and the double-drum winch, the power-off band-type brake device is arranged on the suspension cage, and the top limit safety device is arranged at the top of the derrick;

a drum barrel of the hydraulic lifting platform system is sleeved on a derrick of the vertical transportation system, and a plurality of steel wire ropes III are uniformly arranged on an outermost ring beam and hinged and fixed with the top of the derrick;

the swing derrick mast system consists of a swing derrick mast, a variable amplitude steel wire rope and a variable amplitude winch, wherein one end of the swing derrick mast is hinged with the radiation beam, and the other end of the swing derrick mast is connected with the variable amplitude winch through the variable amplitude steel wire rope.

2. The chimney construction device according to claim 1, wherein the support rod is disposed at an inner side of the outer ring of the steel bar, and has a slope consistent with a chimney wall and a radial direction.

3. A construction method of a chimney construction device applying a hydraulic lifting rollover technology is characterized by comprising the following steps:

1) firstly, pouring the chimney to a designed height;

2) installing and debugging the device;

3) carrying out high pouring construction of a first template: lifting steel bars by an oscillating derrick system, mounting steel bars, lifting a template by a lifting cage, mounting a template, lifting concrete by the lifting cage, and pouring concrete;

4) lifting an operation platform: hydraulic lifting operation platform-concrete construction joint treatment;

5) and (3) performing high pouring construction of a second template: repeating the step 3);

6) and (3) template turnover construction: repeating the step 4), hoisting the steel bars by the rear oscillating derrick mast system, installing the steel bars, dismantling the lower formwork, turning the formwork upwards, installing the formwork, hoisting the concrete by the suspension cage, pouring the concrete, constructing the inner lining of the chimney and curing the concrete; carrying out concrete pouring construction of the next round, and repeating the steps in the same way to complete the pouring construction of the whole chimney;

7) during pouring construction, the hanging cage is utilized to convey masonry materials and mortar to the masonry platform to complete masonry construction of the chimney liner, and concrete curing is carried out on the chimney wall after the formwork is removed;

8) finally, the device is dismantled.

Technical Field

The invention relates to the technical field of construction of constructional engineering, in particular to a chimney construction device and a construction method applying a hydraulic lifting turnover mold technology.

Background

At present, in the technical field of building engineering, the construction of a concrete chimney generally adopts a hydraulic sliding mould process or an electric mould lifting process, and the following defects exist:

1) in the construction process of the hydraulic slip form process, an operation platform is easy to twist, the radius and a steel bar protective layer cannot be effectively controlled, and the poured concrete is easy to crack and has scratches;

2) in the construction process of the electric mould lifting process, the equipment is very heavy, the cost investment is large, and the construction speed is low;

3) the hydraulic sliding formwork process or the electric lifting formwork process both adopt single formwork construction, so that the construction period is long, and the working efficiency is low;

4) the lifting of the operating platform usually adopts a press plate hoist and a chain block hoist, so that the labor intensity of workers is high and the speed is low;

5) the diameter of a winding drum of the hoisting machine is small, the number of layers of a steel wire rope on a roller is large, the steel wire rope is easy to wear, and a single-drum hoisting machine is adopted as a hoisting cage hoisting machine, so that the potential safety hazard of construction personnel is large;

6) the masonry platform is generally separated from the operation platform, after the concrete structure construction is completed, the masonry platform is erected for masonry operation, and the process is complex.

In a word, the traditional concrete chimney construction process device is slow in construction progress, difficult in guaranteeing of engineering quality, poor in safety performance, high in engineering cost, large in labor intensity of workers and inconvenient to construct.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention solves the technical problem of providing the chimney construction device and the construction method applying the hydraulic lifting turnover technology, two sets of templates are adopted to be alternately turned over to replace the traditional single template sliding mode construction technology, the chimney construction device has the advantages of small equipment volume and light weight, and the problems of slow construction progress, difficulty in ensuring engineering quality, poor safety performance, high engineering cost, high labor intensity of workers and inconvenience in construction of the traditional construction technology can be solved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a chimney construction device applying a hydraulic lifting turnover formwork technology comprises a hydraulic lifting platform system, a vertical transportation system and an oscillating derrick mast system, and is characterized in that the hydraulic lifting platform system consists of a drum barrel, radiation beams, a suspension cable pull rod, a jack, a support rod, a guard rail, a protective net, an inner hanger, an outer hanger, a platform plate, a ring beam and a masonry platform, wherein the drum barrel is a hollow circular structural member, the radiation beams are uniformly distributed in a radial manner along the center line of the drum barrel, the inner end parts of the radiation beams are fixedly connected with the drum barrel through bolts, the outer end parts of the radiation beams are connected in series through the ring beam, two ring beams are arranged at the end close to the drum barrel to connect the radiation beams in pairs, the platform plate is paved, and the guard rail is arranged on the ring beam at the outermost end to form an operation platform; the suspension cable pull rods and the radiation beams are matched into a plurality of groups, each group comprises two suspension cable pull rods, one end of each suspension cable pull rod is hinged with the same point of the lower end part of the drum barrel, and the other end of each suspension cable pull rod is hinged with different points of the radiation beams; the jacks and the radiation beams are matched into a plurality of numbers and are arranged on the radiation beams right above the wall of the chimney, the push rods of the jacks are connected with one ends of the support rods, and the other ends of the support rods are propped against the wall of the chimney; the inner hanger and the outer hanger are symmetrically distributed on two sides of the wall of the chimney, the upper end parts of the inner hanger and the outer hanger are fixedly connected with the radiation beam, and the protective net is hung on the outer sides of the protective guard, the outer hanger and the inner hanger; the building platform is connected with a plurality of steel wire ropes and is hung below the radiation beam;

the vertical transportation system comprises a derrick, a suspension cage, a power-off band-type brake device, a top limit safety device, a pulley, a steel wire rope and a double-drum winch, wherein the derrick is arranged on a derrick seat positioned in the center of the wall of the chimney, the derrick is fixed with a steel bar ring embedded in the wall of the chimney at certain intervals through the steel wire rope II, the suspension cage is arranged in the derrick and can move up and down under the driving of the pulley, the steel wire rope and the double-drum winch, the power-off band-type brake device is arranged on the suspension cage, and the top limit safety device is arranged at the top of the derrick;

a drum barrel of the hydraulic lifting platform system is sleeved on a derrick of the vertical transportation system, and a plurality of steel wire ropes III are uniformly arranged on an outermost ring beam and hinged and fixed with the top of the derrick;

the swing derrick mast system consists of a swing derrick mast, a variable amplitude steel wire rope and a variable amplitude winch, wherein one end of the swing derrick mast is hinged with the radiation beam, and the other end of the swing derrick mast is connected with the variable amplitude winch through the variable amplitude steel wire rope.

The support rod is arranged at the inner side of the outer ring towards the steel bar, the inclination of the support rod is consistent with that of the wall of the chimney, and the support rod is vertical to the wall of the chimney in the radial direction.

Furthermore, the jacks are controlled to ascend and descend in a unified mode by a hydraulic system formed by connecting a hydraulic pump, a main oil pipe, a branch oil pipe, an oil valve and an oil separator according to the hydraulic system.

A construction method of a chimney construction device applying a hydraulic lifting rollover technology comprises the following steps:

1) firstly, pouring the chimney to a designed height;

2) the installation and debugging of the device of the invention are as follows: drum positioning, radiation beam mounting, suspension cable pull rod mounting, jack support and jack mounting, ring beam mounting, inner hanger and outer hanger mounting, platform plate laying, hydraulic system mounting, derrick mounting, swing derrick positioning, steel wire rope and suspension cage mounting, double-drum winch and variable amplitude winch positioning, electrical equipment mounting, winch protective shed erecting, building platform mounting, protective railing mounting and safety net hanging and debugging;

3) carrying out high pouring construction of a first template: lifting steel bars by an oscillating derrick system, mounting steel bars, lifting a template by a lifting cage, mounting a template, lifting concrete by the lifting cage, and pouring concrete;

4) lifting an operation platform: hydraulic lifting operation platform-concrete construction joint treatment;

5) and (3) performing high pouring construction of a second template: repeating the step 3);

6) and (3) template turnover construction: repeating the step 4), hoisting the steel bars by the rear oscillating derrick mast system, installing the steel bars, dismantling the lower formwork, turning the formwork upwards, installing the formwork, hoisting the concrete by the suspension cage, pouring the concrete, constructing the inner lining of the chimney and curing the concrete; carrying out concrete pouring construction of the next round, and repeating the steps in the same way to complete the pouring construction of the whole chimney;

7) during pouring construction, the hanging cage is utilized to convey masonry materials and mortar to the masonry platform to complete masonry construction of the chimney liner, and concrete curing is carried out on the chimney wall after the formwork is removed;

8) finally, the device is dismantled.

Compared with the prior art, the invention has the beneficial effects that:

1) the problem that the slip form process cannot guarantee the construction quality of concrete is effectively solved, and the problem that an operation platform is easy to distort is solved;

2) the problems that electric mould lifting equipment is heavy and cost investment is large and construction period is long are effectively solved;

3) the problem that the labor intensity of workers is high and the speed is low due to the adoption of a manual plate pressing hoist or a chain block is effectively solved;

4) the problems that a common suspension cage is not provided with height limit and power-off safety and has large potential safety hazard are effectively solved;

5) the problem that a smaller steel wire rope of a winch roller is easy to wear is effectively solved;

6) the problem of large potential safety hazard of the single-drum winch constructor for getting on and off the chimney is effectively solved;

7) the problem of building platform and operation platform separately, lead to the process complicated has effectively been solved.

Drawings

FIG. 1 is a schematic structural view of the process principle of the present invention;

FIG. 2 is a schematic view of the connection structure of the radiation beam and the ring beam according to the present invention.

In the figure: 1-drum barrel 2-radiation beam 3-suspension cable pull rod 4-jack 5-support rod 6-guard rail 61-protective screen 7-inner hanger 8-outer hanger 9-platform plate 10-headshaking derrick 11-amplitude steel wire rope 12-amplitude winch 13-ring beam 14-derrick 15-suspension cage 16-broken rope brake device 17-steel wire rope 18-steel wire rope 19-steel wire rope three 20-building platform 21-outer ring steel bar 22-template 23-counter pull bolt 24-chimney barrel wall 25-chimney liner 26-top limit safety insurance

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

referring to fig. 1-2, the device for chimney construction by using hydraulic lifting rollover technology comprises a hydraulic lifting platform system, a vertical transportation system and a shaking-head gin pole system, the hydraulic lifting platform system consists of a drum barrel 1, a radiant beam 2, a suspension cable pull rod 3, a jack 4, a support rod 5, a protective railing 6, a protective net 61, an inner hanger 7, an outer hanger 8, a platform plate 9, a ring beam 13 and a masonry platform 20, wherein the drum 1 is a hollow round structural member, the radiation beams 2 are a plurality of radial and uniform distributed along the center line of the drum 1, the inner end part is fastened and connected with the drum 1 by bolts, the outer end part is connected in series by a ring beam 13, two ring beams 13 are arranged at the end close to the drum 1 to connect every two radiation beams 2, a platform plate 9 is paved at the upper edge, and a guard rail 6 is arranged on the ring beam 13 at the outermost end to form an operation platform; the suspension cable pull rods 3 are matched with the radiation beams 2 into a plurality of groups, each group comprises two suspension cable pull rods, one end of each suspension cable pull rod is hinged with the same point of the lower end part of the drum 1, and the other end of each suspension cable pull rod is hinged with different points of the radiation beams 2; the jacks 4 are matched with the radiation beams 2 into a plurality of numbers, are arranged on the radiation beams 2 right above the chimney wall 24, the push rods of the jacks are connected with one end of the support rod 5, and the other end of the support rod 5 is propped against the chimney wall 24; the inner hanger 7 and the outer hanger 8 are symmetrically distributed on two sides of the chimney wall 24, the upper end parts of the inner hanger 7 and the outer hanger 8 are fixedly connected with the radiation beam 2, and the protective net 61 is hung on the outer sides of the protective barrier 6, the outer hanger 8 and the inner hanger 7; the masonry platform 20 is connected with a plurality of steel wire ropes 17 and is suspended below the radiant beam 2.

The vertical transportation system is composed of a derrick 14, a suspension cage 15, a power-off band-type brake device 16, a top limiting safety 26, a pulley, a steel wire rope and a double-drum winch, wherein the derrick 14 is arranged on a derrick seat located at the center of a chimney wall 24, the derrick 14 is fixed with a steel bar ring embedded in the chimney wall 24 through the two steel wire ropes 18 at certain intervals, the suspension cage 15 is arranged in the derrick 14 and can move up and down through the pulley, the steel wire rope and the double-drum winch for conveying concrete, masonry materials and the like, the power-off band-type brake device 16 is arranged on the suspension cage 15, and the top limiting safety 26 is arranged at the top of the derrick 14, so that the safety of the suspension cage 15 is improved.

The drum 1 of the hydraulic lifting platform system is sleeved on a derrick 14 of the vertical transportation system, and a plurality of steel wire ropes 19 are uniformly arranged on an outermost ring beam 13 and are hinged and fixed with the top of the derrick 14.

The swing derrick mast system comprises a swing derrick mast 10, a variable amplitude steel wire rope 11 and a variable amplitude winch 12, wherein one end of the swing derrick mast 10 is hinged with the radiation beam 2, the other end of the swing derrick mast is connected with the variable amplitude winch 12 through the variable amplitude steel wire rope 11, the inclination angle of the swing derrick mast can be adjusted to realize amplitude variation by tightening or loosening the variable amplitude steel wire rope, and the distance between the end part of the swing derrick mast and the wall of the flue pipe is adjusted. The swing derrick mast system generally adopts 1 0.5t hoist engine to change width of cloth, adopts 12 t hoist engine to promote the material, mainly is used for promoting the reinforcing bar, and the wire rope diameter is generally 13mm, and the gin pole counter weight is reinforced concrete piece.

The support rod 5 is arranged at the inner side of the outer ring towards the steel bar 21, the inclination of the support rod is consistent with that of the chimney wall 24, and the support rod is vertical to the radial direction.

Further, the jacks 4 are controlled to ascend and descend by a hydraulic system formed by connecting a hydraulic pump, a main oil pipe, a branch oil pipe, an oil valve and an oil separator according to the hydraulic system, so as to drive the operation platform/masonry platform 20 to ascend and descend.

A construction method of a chimney construction device applying a hydraulic lifting rollover technology comprises the following steps:

1) firstly, pouring the chimney to a designed height (higher than the height of the device of the invention);

2) the installation and debugging of the device of the invention are as follows: the method comprises the steps of drum barrel 1 in place, radiation beam 2 installation, suspension cable pull rod 3 installation, jack 4 support and jack 4 installation, ring beam 13 installation, inner hanger 7 and outer hanger 8 installation, platform plate 9 laying, hydraulic system installation, derrick 1 installation, swing derrick 10 in place, steel wire rope and suspension cage 15 installation, winch in place, electrical equipment installation, winch protective shed erection, masonry platform 20 installation, protective railing 6 installation and safety net 61 hanging, and the debugging of the device is realized;

3) carrying out high pouring construction of a first template: swinging derrick mast system lifting steel bar-steel bar mounting-cage 15 lifting template-template 22 mounting (fastening with split bolt 23) -cage 15 lifting concrete-concrete pouring to form chimney barrel wall 24;

4) lifting an operation platform: (1) lengthening a support rod 5 (which is of a hollow structure) according to the construction progress, welding after adopting an internal joint for connection, and then grinding the craters exceeding the surface of the support rod; (2) a lifting mark line is marked on the supporting rod 5; (3) loosening the third steel wire rope 19 and all objects connected with the platform; (4) starting an application system, lifting the operating platform by the jack 4, observing horizontal movement and torsion of the whole operating platform after lifting three strokes, adjusting problems, and preventing the conditions of translation out of tolerance and torsion; (5) after the operation platform is lifted to the right position, use

Reinforcing the steel bar operating platform; (6) after the support rod 5 is well reinforcedConnecting the third steel wire rope 19 with the platform again; (7) treating a concrete construction joint;

5) and (3) performing high pouring construction of a second template: repeating the step 3);

6) and (3) template turnover construction: repeating the step 4), hoisting the steel bars by the rear oscillating derrick mast system, installing the steel bars, dismantling the lower formwork, turning the formwork upwards, installing the formwork, hoisting the concrete by the suspension cage, pouring the concrete, constructing the chimney lining 25 and curing the concrete; carrying out concrete pouring construction of the next round, and repeating the steps in the same way to complete the pouring construction of the whole chimney;

7) during pouring construction, the suspension cage 15 is utilized to convey masonry materials and mortar to the masonry platform 20 to complete masonry construction of the chimney liner 25, and concrete curing is carried out on the chimney wall 24 after formwork removal;

8) finally, the device is dismantled.