Chimney steel platform vertical lifting construction operation platform

Abstract

The utility model discloses a chimney steel platform vertical lifting construction operation platform, and relates to the field of chimney steel platform construction operation. At present, along with the enlargement of a thermal power generating unit, a chimney is also enlarged, the dead weight and the size of a steel platform are continuously increased, and the construction difficulty and the safety risk of the steel platform are greatly increased. The lifting device comprises a supporting beam, a construction platform, an electric hanging basket and a lifting device, the supporting beam is transversely erected at the top end of an outer barrel of the chimney, the construction platform is borne below the supporting beam through the lifting device and ascends and descends through the lifting device, and the electric hanging basket is borne below the supporting beam and ascends and descends through an electric mode. The construction platform comprises a main operation platform and a radiation platform detachably connected and fixed to the outer side of the main operation platform, and the radiation platform comprises various radial width dimensions. According to the device, people and goods separation is achieved, the device can adapt to chimneys of different sizes, the repeated utilization rate of the device is high, and construction convenience and safety are improved.

Description

Technical Field

[0001] The utility model relates to the field of chimney steel platform construction operations, in particular to a chimney steel platform vertical lifting construction operation platform. Background Art

[0002] Large thermal power units that are clean, environmentally friendly and have high energy utilization rates are bound to replace small power generating units that cause serious environmental pollution and have low power generation efficiency. Therefore, the supporting facilities for the construction of the units are also constantly developing towards large-scale development, such as chimneys, cooling towers, etc.

[0003] At present, the chimney design is generally a sleeve structure, mainly composed of a reinforced concrete outer cylinder and a mostly suspended steel inner cylinder, with multiple layers of steel platforms and auxiliary steel structures arranged from top to bottom between the inner and outer cylinders. The installation and construction technology of the steel platform and the auxiliary steel structure is high, with the characteristics of large workload, difficult lifting, and many ultra-high altitude operations. With the large-scale thermal power units, the diameter of the chimney has also increased, and the deadweight and size of the steel platform have continued to increase, which has greatly increased the construction difficulty and safety risks of the steel platform. As the chimney becomes larger, it is often necessary to re-manufacture larger construction equipment to adapt to the construction of the new steel platform, resulting in a low reuse rate of old construction equipment. Utility Model Content

[0004] The technical problem to be solved and the technical task proposed by the utility model are to improve and perfect the existing technical solutions, and provide a chimney steel platform vertical lifting construction work platform, so as to improve the convenience of steel platform construction and construction efficiency, and improve the reuse capacity of the construction platform. To this end, the utility model adopts the following technical solutions.

[0005] A chimney steel platform vertical lifting construction platform, including a supporting beam, a construction platform, an electric hanging basket and a lifting device, wherein the supporting beam is used to be horizontally mounted on the top of the outer tube of the chimney, the construction platform is carried under the supporting beam through the lifting device, and is lifted and lowered by the lifting device, the electric hanging basket is carried under the supporting beam and lifted and lowered by the electric hanging basket, the electric hanging basket is located above the construction platform, the construction platform is a circular platform, including a main working platform and a radiation platform, the radiation platform is detachably connected and fixed to the outside of the main working platform, and the radiation platform includes a variety of radial width specifications. The construction platform can conveniently realize the lifting and lowering of the construction platform, and the separation of people and goods is realized by carrying people on the electric hanging basket and carrying goods on the construction platform. By detachably replacing and installing the radiation platform with different radial width specifications, it can effectively adapt to the construction of different steel platforms of different chimneys, can flexibly adjust the working area according to demand, adapt to chimneys of different sizes, enable equipment to be reused, reduce construction costs, and improve the construction speed of the construction platform. The lifting and lowering construction platform greatly reduces the difficulty of steel platform construction, improves construction convenience and safety, and can effectively improve construction efficiency.

[0006] As a preferred technical means: the main working platform adopts an upper and lower two-layer truss structure. The truss structure has good stability and load-bearing capacity, and the upper and lower two-layer design can further increase the load-bearing capacity and stability of the platform to ensure construction safety.

[0007] As a preferred technical means: the support beam includes a main beam section and a plurality of identical extension beam sections, and the extension beam sections can be detachably connected and extended from both ends of the main beam section to adapt to the size of the chimney. The detachable connection and extension can be performed according to the size of the chimney, thereby improving the adaptability of the support beam to the chimney size.

[0008] As a preferred technical means: the main beam section and the extended beam section are both upper and lower two-layer truss structures. The main beam section and the extended beam section are both upper and lower two-layer truss structures, which ensures the strength and stability of the supporting beam.

[0009] As a preferred technical means: the upper layer of the supporting beam is longer than the lower layer, and the supporting beam is symmetrical in the length direction, and the main beam section is an isosceles trapezoidal structure with a larger upper portion and a smaller lower portion. This helps to enhance the bearing capacity of the supporting beam, and can be designed to be symmetrical in length to make the supporting beam structure more stable under stress, and facilitate the arrangement of the accessories of the lifting device on the upper parts of both ends of the supporting beam. When the lifting device is working, there is no risk of colliding with the lower parts of both ends of the supporting beam or the outer side of the chimney.

[0010] As a preferred technical means: the main beam section and the extended beam section both include 4 horizontal long beams, multiple oblique reinforcing ribs and multiple horizontal connecting rods, the 4 horizontal long beams are arranged in parallel with 2 upper beams and 2 lower beams, multiple horizontal connecting rods are connected between the 2 upper horizontal long beams and the 2 lower horizontal long beams, and the upper horizontal long beams and the lower horizontal beams on the front side and the upper horizontal long beams and the lower horizontal beams on the rear side are connected and fixed by multiple oblique reinforcing ribs. A two-layer truss support beam structure is effectively realized, and the connection is firm and reliable.

[0011] As a preferred technical means: the connection and fixation between the main beam section and the extended beam section includes a fixed plate connection and a diagonal reinforcing rib connection and fixation. Each adjacent horizontal long beam column of the main beam section and the extended beam section is connected and fixed by 4 fixed plates. Each fixed plate is connected and fixed to the horizontal long beam column by an array bolt. The diagonal reinforcing rib is fixed by bolt connection between the upper horizontal long beam column of the main beam section and the lower horizontal long beam column of the extended beam section. The combination of the fixed plate connection and the diagonal reinforcing rib connection ensures the firmness and stability of the connection between the main beam section and the extended beam section. The array-arranged bolt connection method improves the firmness of the connection.

[0012] As a preferred technical means: the lifting device includes a winch, a steering pulley, a movable pulley and a wire rope. The winch is symmetrically arranged on the ground on the left and right sides of the chimney. The steering pulleys are symmetrically distributed on the top of the supporting beam and the left and right outer sides of the lower end of the chimney. There are two movable pulleys, which are symmetrically connected and fixed on the main working platform. The wire rope passes through each steering pulley and the movable pulley symmetrically, and both ends of the wire rope are connected to the winch. The winch drives the wire rope for traction, which can safely and reliably realize the lifting and lowering of the construction platform, is easy to operate, and has high lifting efficiency.

[0013] As a preferred technical means: the lifting device is provided with a synchronous control device to control the synchronous vertical movement of the two movable pulley suspension points of the construction platform. The synchronous control device ensures the stability of the construction platform during the lifting process.

[0014] As an optimal technical means: the electric hanging basket is provided with an emergency safety self-locking device, which improves the safety of construction workers during the lifting process and prevents accidents during the lifting process.

[0015] Beneficial effects: The construction platform can conveniently realize the lifting and lowering of the construction platform, realize the separation of people and goods through the electric hanging basket to carry people and the construction platform to carry goods, and can effectively adapt to the construction of different steel platforms for different chimneys by detachably replacing and installing radiation platforms with different radial widths. The size of the work platform can be flexibly adjusted according to needs to adapt to chimneys of different sizes, so that the equipment can be reused, the construction cost is reduced, and the construction speed of the construction platform is improved. The liftable construction platform greatly reduces the difficulty of steel platform construction, improves the convenience and safety of construction, and can effectively improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural principle of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the support beam of the utility model.

[0018] In the figure: 1. Support beam; 2. Construction platform; 3. Electric hanging basket; 4. Winch; 5. Steering pulley; 6. Moving pulley; 7. Wire rope; 101. Main beam section; 102. Extended beam section; 103. Long beam column; 104. Strengthening rib; 105. Fixed plate. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings of the specification.

[0020] like Figure 1 As shown, a chimney steel platform vertical lifting construction work platform includes a supporting beam 1, a construction platform 2, an electric hanging basket 3 and a lifting device. The supporting beam 1 is used to be horizontally mounted on the top of the outer tube of the chimney in the left and right directions. The construction platform 2 is carried under the supporting beam through the lifting device and is lifted and lowered by the lifting device. The electric hanging basket 3 is located above the construction platform 2, carried under the supporting beam and lifted and lowered by electric means. The construction platform 2 is a circular platform, including a main working platform and a radiating platform. The radiating platform is detachably connected and fixed to the outside of the main working platform. The radiating platform includes specifications of various radial width sizes.

[0021] In order to improve the load-bearing capacity and ensure safety, the main working platform adopts a two-layer truss structure. The truss structure has good stability and load-bearing capacity. The two-layer design can further increase the load-bearing capacity and stability of the platform and ensure construction safety.

[0022] In order to improve the adaptability of the support beam to the chimney size, such as Figure 2As shown, the support beam 1 includes a main beam section 101 and a plurality of identical extension beam sections 102, and the extension beam sections 102 can be detachably connected and extended from both ends of the main beam section 101 to adapt to the size of the chimney. The detachable connection and extension can be performed according to the size of the chimney, thereby improving the adaptability of the support beam to the chimney size.

[0023] In order to ensure the strength and stability of the supporting beam 1, the main beam section 101 and the extended beam section 102 are both upper and lower two-layer truss structures. The main beam section 101 and the extended beam section 102 are both upper and lower two-layer truss structures, which ensure the strength and stability of the supporting beam 1.

[0024] In order to achieve a firm and reliable truss support beam structure, the upper layer of the supporting beam 1 is longer than the lower layer, and the supporting beam is symmetrical in the length direction. The main beam section 101 is an isosceles trapezoidal structure with a larger upper portion and a smaller lower portion. The main beam section 101 and the extended beam section 102 both include 4 horizontal long beams 103, a plurality of oblique reinforcing ribs 104 and a plurality of horizontal connecting rods. The four horizontal long beams 103 are arranged in parallel in the left and right directions with 2 upper beams and 2 lower beams. A plurality of horizontal connecting rods are connected between the upper 2 horizontal long beams 103 and between the lower 2 horizontal long beams 103. The upper horizontal long beam 103 and the lower horizontal beam on the front side, as well as the upper horizontal long beam 103 and the lower horizontal beam on the rear side are connected and fixed by a plurality of oblique reinforcing ribs 104. It effectively realizes a two-layer truss support beam structure with firm and reliable connection, which helps to enhance the bearing capacity of the support beam 1. It can also be designed symmetrically in length to make the support beam 1 structure more stable, and facilitate the arrangement of accessories of the lifting device on the upper part of both ends of the support beam. When the lifting device is working, there is no risk of colliding laterally with the lower part of the two ends of the support beam 1 or the outer side of the chimney.

[0025] In order to achieve the firmness of the connection between the main beam section 101 and the extended beam section 102, the connection and fixation between the main beam section 101 and the extended beam section 102 includes the connection and fixation of the fixing plate 105 and the connection and fixation of the oblique reinforcing rib 104. Each adjacent horizontal long beam column 103 of the main beam section 101 and the extended beam section 102 is connected and fixed by four fixing plates 105. Each fixing plate 105 is connected and fixed to the horizontal long beam column 103 by an array bolt. The oblique reinforcing rib 104 is fixed by bolt connection between the upper horizontal long beam column 103 of the main beam section 101 and the lower horizontal long beam column 103 of the extended beam section 102. The combination of the connection and fixation of the fixing plate 105 and the connection and fixation of the oblique reinforcing rib 104 ensures the firmness and stability of the connection between the main beam section 101 and the extended beam section 102. The array-arranged bolt connection method improves the firmness of the connection.

[0026] In order to realize the lifting and lowering of the lifting device, the lifting device includes a winch 4, a steering pulley 5, a movable pulley 6 and a wire rope 7. The winch 4 is symmetrically arranged on the ground on the left and right sides of the chimney, the steering pulleys 5 are symmetrically distributed on the top of the supporting beam 1 and the left and right outer sides of the lower end of the chimney, there are 2 movable pulleys 6, which are symmetrically connected and fixed on the main working platform, and the wire rope 7 passes through each steering pulley 5 and the movable pulley 6 symmetrically, and the two ends of the wire rope 7 are connected to the winch 4. The lifting and lowering of the lifting device is effectively realized, and the wire rope 7 is driven by the winch 4 to be pulled, which can safely and reliably realize the lifting and lowering of the construction platform 2, and the operation is simple and the lifting efficiency is high.

[0027] In order to ensure the stability of the construction platform 2 during the lifting process, the lifting device is provided with a synchronous control device to control the synchronous vertical movement of the two movable pulleys 6 of the construction platform 2. The synchronous control device ensures the stability of the construction platform 2 during the lifting process, and on the basis of reducing the error caused by the uneven lifting speed between the lifting points, it strengthens the safety of the platform lifting, speeds up the lifting speed, ensures the smooth lifting of the equipment, improves the construction efficiency, and reduces the occurrence of safety accidents.

[0028] In order to improve the safety of construction workers during the lifting process, the electric hanging basket 3 is provided with an emergency safety self-locking device, which improves the safety of construction workers during the lifting process and prevents accidents during lifting.

[0029] During installation, after the chimney outer tube is constructed to the top, a support beam 1 is installed on the top of the chimney outer tube so that the left and right ends of the support beam extend out of the outer tube. The support beam can select the main beam section 101 and the corresponding number of extended beam sections 102 according to the diameter of the chimney for connection and fixing. Three groups of steering pulleys 5 are connected on the upper layer of the support beam, with 2 in each group, one group on the left, middle and right and arranged symmetrically. There is a steering pulley 5 at each end of the support beam, and a steering pulley 5 is arranged on each of the two outer sides of the bottom of the chimney. The steel wire rope 7 passes through each steering pulley 5 and the movable pulley 6 on the main working platform, and its two ends are respectively connected to the winch 4 on the ground on both sides of the chimney. When the electric hanging basket 3 is installed, the two bearing points on it are located in the middle area of ​​the lower layer of the support beam, and the two bearing points are symmetrical. The electric hanging basket 3 is used for manning, and a standard manned lifting hanging basket is used. The upper layer of the construction platform 2 is placed on the workpiece to be loaded on the steel platform, and the lower layer is placed on the machinery and tools, and the people and goods are separated. When installing the steel platform, install the chimney's steel platform and ladder from top to bottom.

[0030] In order to improve safety monitoring capabilities, the vertical lifting construction work platform is also equipped with a visualization system and a safety monitoring system.

[0031] In this example, two 16-ton winches 4 are used. The wire rope 7 is of φ43 specification. In order to improve safety, the support beam 1 is 2 meters high and 1 meter wide from front to back, spanning the concrete outer cylinder head of the chimney, with a designed load-bearing capacity of 50 tons and a maximum load-bearing capacity of 62.5 tons. The long beam column 103 is made of I-beams, and the reinforcing ribs 104 are made of angle steel. In order to facilitate installation and removal, the maximum weight of a single piece of the support beam components is less than 0.6 tons. The construction platform 2 has a maximum deadweight of 14 tons and a designed load-bearing capacity of 16 tons. It is designed as a detachable structure for easy transportation. A 1.25-fold load test is performed before use, and it can be put into use after passing the test.

[0032] The construction platform can conveniently realize the lifting and lowering of the construction platform 2, and the electric hanging basket 3 carries people and the construction platform 2 carries goods, so as to realize the separation of people and goods and improve safety. By detachably replacing and installing the radiation platform with different radial widths, it can effectively adapt to the construction of different steel platforms of different chimneys, can flexibly adjust the operation area according to the needs, adapt to chimneys of different sizes, make the equipment reusable, reduce the construction cost, and improve the construction speed of the construction platform. The lifting construction platform greatly reduces the difficulty of steel platform construction, improves the convenience and safety of construction, and can effectively improve the construction efficiency.

[0033] above Figure 1 , 2 The chimney steel platform vertical lifting construction work platform shown is a specific embodiment of the utility model, which has embodied the substantial characteristics and progress of the utility model. According to actual use needs and under the guidance of the utility model, equivalent modifications in shape, structure, etc. can be made to it, which are all within the protection scope of this scheme.

Claims

1. A chimney steel platform vertical lifting construction work platform, characterized by: The invention comprises a supporting beam (1), a construction platform (2), an electric hanging basket (3) and a lifting device, wherein the supporting beam (1) is used to be horizontally mounted on the top of the outer tube of the chimney, the construction platform (2) is supported under the supporting beam through the lifting device and is lifted and lowered by the lifting device, the electric hanging basket (3) is supported under the supporting beam and is lifted and lowered by electric means, the electric hanging basket (3) is located above the construction platform (2), the construction platform (2) is a circular platform, comprising a main working platform and a radiating platform, the radiating platform being detachably connected and fixed to the outer side of the main working platform, and the radiating platform having specifications of various radial width dimensions.

2. The chimney steel platform vertical lifting construction work platform according to claim 1 is characterized by: The main working platform adopts an upper and lower two-layer truss structure.

3. The chimney steel platform vertical lifting construction work platform according to claim 1 is characterized by: The supporting beam (1) comprises a main beam section (101) and a plurality of identical extended beam sections (102); the extended beam sections (102) can be detachably connected and extended from both ends of the main beam section (101) to adapt to the size of the chimney.

4. The chimney steel platform vertical lifting construction work platform according to claim 3 is characterized by: The main beam section (101) and the extended beam section (102) are both upper and lower two-layer truss structures.

5. The chimney steel platform vertical lifting construction work platform according to claim 4 is characterized by: The upper layer of the support beam (1) is longer than the lower layer, and the support beam is symmetrical in the length direction; the main beam section (101) is an isosceles trapezoidal structure that is larger at the top and smaller at the bottom.

6. The chimney steel platform vertical lifting construction work platform according to claim 5 is characterized by: The main beam section (101) and the extended beam section (102) each include four horizontal long beams (103), a plurality of oblique reinforcing ribs (104) and a plurality of horizontal connecting rods. The four horizontal long beams (103) are arranged in parallel in a left-right direction with two upper beams and two lower beams. The upper two horizontal long beams (103) and the lower two horizontal long beams (103) are connected by a plurality of horizontal connecting rods. The upper horizontal long beam (103) and the lower horizontal beam on the front side, and the upper horizontal long beam (103) and the lower horizontal beam on the rear side are connected and fixed by a plurality of oblique reinforcing ribs (104).

7. The chimney steel platform vertical lifting construction work platform according to claim 6 is characterized by: The connection and fixation between the main beam section (101) and the extended beam section (102) includes connection and fixation by a fixing plate (105) and connection and fixation by an oblique reinforcing rib (104); each adjacent horizontal long beam column (103) of the main beam section (101) and the extended beam section (102) is connected and fixed by four fixing plates (105); each fixing plate (105) is connected and fixed to the horizontal long beam column (103) by an array bolt; and the oblique reinforcing rib (104) is fixed by bolt connection between the upper horizontal long beam column (103) of the main beam section (101) and the lower horizontal long beam column (103) of the extended beam section (102).

8. The chimney steel platform vertical lifting construction work platform according to claim 1 is characterized by: The lifting device comprises a winch (4), a steering pulley (5), a movable pulley (6) and a steel wire rope (7). The winch (4) is symmetrically arranged on the ground on the left and right sides of the chimney. The steering pulleys (5) are symmetrically distributed on the left and right outer sides of the top of the supporting beam (1) and the lower end of the chimney. There are two movable pulleys (6) in total, which are symmetrically connected and fixed on the main working platform. The steel wire rope (7) passes through each steering pulley (5) and the movable pulley (6) symmetrically. Both ends of the steel wire rope (7) are connected to the winch (4).

9. The chimney steel platform vertical lifting construction work platform according to claim 8, characterized in that: The lifting device is provided with a synchronous control device to control the synchronous vertical movement of the two movable pulleys (6) of the construction platform (2).

10. The chimney steel platform vertical lifting construction work platform according to claim 9, characterized in that: The electric hanging basket (3) is provided with an emergency safety self-locking device.

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