A retractable hanging plate used in regular or irregular steel cylinders

Abstract

The present invention discloses a retractable hanging plate used in a regular or irregular steel cylinder, comprising a hanging plate frame, the hanging plate frame comprising a plurality of adjustable radial beams, the adjustable radial beams comprising a fixed frame beam, a core beam slidably arranged in the fixed frame beam, and a plurality of pins for fixing the fixed frame beam and the core beam, a connecting beam is arranged between two adjacent fixed frame beams, the end of the fixed frame beam is connected to a first lifting device, the end of the core beam is connected to a second lifting device, and the other ends of the first lifting device and the second lifting device are connected to a pallet lifting ear. The hanging plate has low manufacturing cost, is easy and flexible to operate, can improve construction progress, and reduce construction cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel structure cylinder shell installation, and in particular relates to a retractable hanging plate used in a regular or irregular steel cylinder, which is used for on-site docking installation, welding, testing and painting of the steel cylinder. Background Art

[0002] At present, in the installation of some pressure vessel steel structure cylinder shells such as chemical engineering construction, power plant engineering construction and metallurgical ironmaking blast furnace engineering (such as blast furnace shell, hot blast furnace shell, mixed air furnace shell and preheating furnace shell), the following methods are usually used in the construction process of installation, welding and testing on the inside of the furnace shell:

[0003] 1. Use a temporary tripod welded at the same elevation and a certain distance on the inner wall of the furnace shell, and then lay a wooden springboard on the tripod as an operating platform for construction work. This method cannot be implemented in some projects where the inner wall of the pressure vessel has a composite stainless steel plate. The reason is that the design does not allow welding of objects unrelated to the project on the stainless steel surface, and once the welding force is applied, it may not meet the requirements. This solution is not advisable.

[0004] 2. Use special welding equipment to hang on the upper mouth of the furnace shell to directly carry out welding operations. This method solves the welding task of the weld, but the early installation and matching of the weld and the later grinding and detection of the weld are difficult to achieve.

[0005] 3. Use a crane to hoist the hoist frame for welding operations. This method cannot be used for construction positions when, for example, a cylindrical container changes from a straight section to an open or closed section.

[0006] 4. If the container is large enough and the ground inside the container allows, the aerial work platform can be hoisted to the inside of the container and the welding operation can be carried out by moving the aerial work platform. In this method, after the aerial work platform is moved out of the cylindrical container before the cylindrical container is closed, how to carry out the remaining work inside the cylindrical container becomes a problem.

[0007] 5. If the container is large enough, scaffolding can be set up inside the container if the ground inside the container allows, and welding operations can be carried out in this way; as a cylindrical container, cross-operation and closed construction are inevitable, so the work inside the cylindrical container cannot meet the scaffolding operation conditions. Summary of the invention

[0008] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art and provide a retractable hanging plate for use in a regular or irregular steel cylinder, which has low manufacturing cost, is easy and flexible to operate, can improve construction progress and reduce construction costs.

[0009] To solve the above problems, the technical solution adopted by the present invention is:

[0010] A retractable hanging platform used in a regular or irregular steel cylinder comprises a hanging platform frame, the hanging platform frame comprises a plurality of adjustable radial beams, the adjustable radial beams comprise a fixed frame beam, a core beam slidably arranged in the fixed frame beam and a plurality of pins fixing the fixed frame beam and the core beam, a connecting beam is arranged between two adjacent fixed frame beams, the end of the fixed frame beam is connected to a first lifting device, the end of the core beam is connected to a second lifting device, and the other ends of the first lifting device and the second lifting device are connected to a pallet lifting ear.

[0011] A further technical solution is that the pallet lifting ear comprises a pallet lifting ear body, on which a first shackle and a second shackle are provided, the first shackle is used to connect with a first lifting device, and the second shackle is used to connect with a second lifting device, a slot is provided on the pallet lifting ear body, a sealing plate is provided on the top wall of the slot, and both side walls of the slot are provided with webs that are tightly attached to the steel cylinder, and a tightening bolt is threadedly connected to one of the webs.

[0012] A further technical solution is that a connecting ear plate is provided at the end of the fixed frame beam, a third shackle for connecting to a first lifting device is provided on the connecting ear plate, two end connecting plates are provided at the end of the core beam, a connecting shaft for connecting to a second lifting device is provided at the upper part of the two end connecting plates, and rollers are provided at the front part of the two end connecting plates.

[0013] A further technical solution is that a wooden springboard is laid on the hanging tray frame.

[0014] A further technical solution is that a safety net is suspended below the hanging tray frame.

[0015] A further technical solution is that a plurality of non-working areas are arranged on the hanging tray frame, the non-working areas are surrounded by safety railings, and wooden springboards are laid on the hanging tray frame in the non-working areas.

[0016] A further technical solution is to further include a central fixed disc, and a plurality of fixed frame beams are evenly distributed around the central fixed disc.

[0017] A further technical solution is that the central fixed disc includes two circular plates arranged up and down, and the fixed frame beam is arranged between the two circular plates.

[0018] A further technical solution is that there are eight adjustable radial beams.

[0019] A further technical solution is that the fixed frame beam is formed by butt welding two channel steels, and a reinforcing plate is provided on the upper surface.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] It can provide construction workers with a safe and reliable working platform during the installation and construction process. By adjusting the adjustable radial beam, the hanging platform of the present invention can be suitable for the installation of both regular steel cylinders and irregular steel cylinders. The pallet lifting lug is installed at the upper port of the steel cylinder. The first lifting device and the second lifting device bear the force of the hanging platform in the vertical direction and the inclined direction, realizing double insurance. The tightening bolt can prevent the pallet lifting lug from tilting and temporarily fix the pallet lifting lug to the steel cylinder. Several non-working areas are provided on the hanging platform frame. There are safety railings around the non-working areas, and no wooden springboards are laid on the hanging platform frame in the non-working areas. The purpose of not laying wooden springboards in the non-working areas is mainly to reduce the area of ​​paving, thereby reducing the weight of the hanging platform and improving the safety factor of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention without the wooden gangplank and the safety railing;

[0024] Figure 3 is a schematic diagram of the structure of the adjustable radial beam;

[0025] Figure 4 It is a structural diagram of the pallet lifting ear.

[0026] In the figure: 1. adjustable radial beam; 1-1. fixed frame beam; 1-2. core beam; 1-3. pin shaft; 2. connecting beam; 3. first lifting equipment; 4. second lifting equipment; 5. pallet lifting ear; 5-1. pallet lifting ear body; 5-2. slot; 5-3. web plate; 5-4. tightening bolt; 5-5. first shackle; 5-6. second shackle; 5-7. sealing plate; 6. connecting ear plate; 7. third shackle; 8. end connecting plate; 9. connecting shaft; 10. roller; 11. wooden springboard; 12. safety railing; 13. center fixed disc; 14. reinforcement plate. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] like Figure 1-4The illustrated embodiment is a retractable hanging plate used in a regular or irregular steel cylinder, comprising a hanging plate frame, wherein the hanging plate frame comprises a plurality of adjustable radial beams 1, and preferably, the adjustable radial beams 1 have eight. The adjustable radial beams comprise a fixed frame beam 1-1, a core beam 1-2 slidably disposed in the fixed frame beam 1-1, and a plurality of pins 1-3 for fixing the fixed frame beam 1-1 and the core beam 1-2. A connecting beam 2 is disposed between two adjacent fixed frame beams 1-1, a first lifting device 3 is connected to the end of the fixed frame beam 1-1, a second lifting device 4 is connected to the end of the core beam 1-2, and the other ends of the first lifting device 3 and the second lifting device 4 are connected to a pallet lifting lug 5. The pallet lifting lug 5 is installed at the upper port of the steel cylinder, and the first lifting device 3 and the second lifting device 4 bear the force of the hanging plate in the vertical direction and the inclined direction, thereby realizing double insurance. The first lifting device 3 and the second lifting device 4 are hand chain hoists.

[0029] The cardboard lifting ear 5 comprises a cardboard lifting ear body 5-1, on which a first shackle 5-5 and a second shackle 5-6 are arranged, the first shackle 5-5 is used to connect with the first lifting equipment 3, and the second shackle 5-6 is used to connect with the second lifting equipment 4, the cardboard lifting ear body 5-1 is provided with a card slot 5-2 adapted to the side wall of the steel cylinder, the top wall of the card slot 5-2 is provided with a sealing plate 5-7, and the two side walls of the card slot 5-2 are provided with webs 5-3 close to the steel cylinder, and one of the webs 5-3 is threadedly connected with a tightening bolt 5-4. The tightening bolt 5-4 can prevent the cardboard lifting ear 5 from tilting and temporarily fix the cardboard lifting ear 5 to the steel cylinder.

[0030] The end of the fixed frame beam 1-1 is provided with a connecting ear plate 6, and the connecting ear plate 6 is provided with a third shackle 7 for connecting to the first lifting equipment 3. The end of the core beam 1-2 is provided with two end connecting plates 8, and the upper part of the two end connecting plates 8 is provided with a connecting shaft 9 for connecting to the second lifting equipment 4. The front part of the two end connecting plates is provided with rollers 10, and the rollers 10 are made of rubber material to prevent the lifting plate from colliding with the steel cylinder during the up and down movement.

[0031] A wooden springboard 11 is laid on the hanging tray frame. Preferably, a safety net is hung below the hanging tray frame. Several non-working areas are provided on the hanging tray frame, and safety railings 12 are arranged around the non-working areas. No wooden springboard 11 is laid on the hanging tray frame in the non-working areas. The purpose of not laying wooden springboards 11 in the non-working areas is mainly to reduce the area of ​​the planks, thereby reducing the weight of the hanging tray and improving the safety factor of construction.

[0032] It also includes a central fixed disc 13, and a plurality of fixed frame beams 1-1 are evenly distributed around the central fixed disc 1. In this embodiment, the central fixed disc 13 includes two circular plates arranged up and down, and the fixed frame beam 1-1 is arranged between the two circular plates.

[0033] The fixed frame beam 1 - 1 is formed by two channel steels welded together, and a reinforcing plate 14 is provided on the upper surface.

[0034] By adjusting the adjustable radial beam 1, the hanging platform of the present invention can be applied to the installation of both regular steel cylinders and irregular steel cylinders. The pallet lifting lug 5 is installed at the upper port of the steel cylinder, and the first lifting device 3 and the second lifting device 4 bear the force of the hanging platform in the vertical direction and the inclined direction, realizing double insurance. The tightening bolts 5-4 can prevent the pallet lifting lug 5 from tilting, and temporarily fix the pallet lifting lug 5 to the steel cylinder. Several non-working areas are provided on the hanging platform frame, and safety railings 12 are arranged around the non-working areas. No wooden springboards 11 are laid on the hanging platform frame in the non-working areas. The purpose of not laying wooden springboards 11 in the non-working areas is mainly to reduce the area of ​​the planks, thereby reducing the weight of the hanging platform and improving the safety factor of construction.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A retractable hanging plate used in a regular or irregular steel cylinder, characterized in that: The invention comprises a hanging plate frame and a central fixed disc (13), wherein the hanging plate frame comprises a plurality of adjustable radial beams (1), wherein the adjustable radial beams comprise a fixed frame beam (1-1), a core beam (1-2) slidably arranged in the fixed frame beam (1-1), and a plurality of pins (1-3) for fixing the fixed frame beam (1-1) and the core beam (1-2), wherein a connecting beam (2) is arranged between two adjacent fixed frame beams (1-1), wherein the end of the fixed frame beam (1-1) is connected to a first lifting device (3), and the end of the core beam (1-2) is connected to a second lifting device (4), and the other ends of the first lifting device (3) and the second lifting device (4) are connected to a card plate lifting ear (5); The card plate lifting ear (5) comprises a card plate lifting ear body (5-1), a first shackle (5-5) and a second shackle (5-6) are provided on the card plate lifting ear body (5-1), the first shackle (5-5) is used to connect with the first lifting equipment (3), and the second shackle (5-6) is used to connect with the second lifting equipment (4), a card slot (5-2) is provided on the card plate lifting ear body (5-1), a sealing plate (5-7) is provided on the top wall of the card slot (5-2), and webs (5-3) close to the steel cylinder are provided on both side walls of the card slot (5-2), and a tightening bolt (5-4) is threadedly connected to one of the webs (5-3); The end of the fixed frame beam (1-1) is provided with a connecting ear plate (6), and the connecting ear plate (6) is provided with a third shackle (7) for connecting to the first lifting device (3); the end of the core beam (1-2) is provided with two end connecting plates (8), the upper parts of the two end connecting plates are provided with connecting shafts (9) for connecting to the second lifting device (4), and the front parts of the two end connecting plates are provided with rollers (10); A safety net is suspended below the hanging tray frame; a plurality of non-working areas are arranged on the hanging tray frame, and safety railings (12) are arranged around the non-working areas; a wooden springboard (11) is laid on the hanging tray frame in the non-working areas; A plurality of fixed frame beams (1-1) are evenly distributed around a central fixed disc (13); the central fixed disc (13) comprises two circular plates arranged up and down, and the fixed frame beams (1-1) are arranged between the two circular plates.

2. A retractable hanging plate used in a regular or irregular steel cylinder according to claim 1, characterized in that: A wooden springboard (11) is laid on the hanging tray frame.

3. The retractable hanging plate used in a regular or irregular steel cylinder according to claim 1, characterized in that: There are eight adjustable radial beams (1).

4. The retractable hanging plate used in a regular or irregular steel cylinder according to claim 1, characterized in that: The fixed frame beam (1-1) is formed by butt welding two channel steels, and a reinforcing plate (14) is provided on the upper surface.

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