Foldable hanging scaffold structure for blast furnace body construction

Abstract

The utility model relates to the technical field of blast furnace body construction, in particular to a foldable hanging scaffold structure for blast furnace body construction, which comprises a bottom plate, a hanging scaffold central cylinder, a fixed pressing plate, a platform main beam and a platform secondary beam, the hanging scaffold central cylinder is positioned between the fixed pressing plate and the bottom plate, and the platform main beam is hinged with the hanging scaffold central cylinder; the outer edges of the two plates are located above and below the ends of the platform main beams respectively, the ends of the platform main beams are clamped between the outer edges of the two plates, the outer edges of the two plates are fixed to the platform main beams through bolts, the multiple detachable platform secondary beams are arranged between every two adjacent platform main beams, the platform plates are arranged above the platform secondary beams, and the platform main beams can be folded and are convenient to assemble and disassemble. After being folded, the folding device can be easily hoisted out or hoisted in through a blast furnace top chute access hole and can be repeatedly used, so that the construction efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace body construction, in particular to a foldable hanging plate structure for blast furnace body construction. Background Art

[0002] In the field of ironmaking construction, the hanging plate structure is often used in the construction of blast furnace systems. It can be used as a welding platform for the internal welds of the blast furnace shell structure, a construction operation platform for the installation of blast furnace cooling walls, a hoisting platform for the construction of blast furnace refractory masonry, and an operation platform for spraying the upper part of the blast furnace body. In the past, the hanging plate structure was mostly connected by welding for stability and safety considerations. It was not very convenient to disassemble and transport. After use, it had to be cut before it could be removed from the furnace shell, which was not conducive to reuse. To this end, a foldable hanging plate structure for blast furnace body construction was proposed. Utility Model Content

[0003] The utility model aims to solve the above problems, thereby providing a foldable hanging plate structure for blast furnace body construction.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] A foldable hanging platform structure for blast furnace body construction comprises a bottom plate, a hanging platform center tube is fixed on the top of the bottom plate, a plurality of pairs of upright rib plates are evenly distributed at the same height on the outer periphery of the hanging platform center tube, hinge holes are opened relatively on each pair of rib plates, and a platform main beam is hingedly connected by a pin shaft, a lifting ear is arranged above the end of the platform main beam away from the hanging platform center tube, a fixed pressure plate is arranged above the hanging platform center tube, the outer edges of the fixed pressure plate and the bottom plate are respectively located above and below the end of the platform main beam, the end of the platform main beam is clamped in the middle, and is fixedly connected to the platform main beam by bolts, a plurality of detachable platform secondary beams are arranged between two adjacent platform main beams, a platform plate is arranged above the platform secondary beam, and both side edges of the platform plate are respectively erected on adjacent platform main beams.

[0006] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0007] The platform main beam of the utility model can be folded, and installation and disassembly are relatively convenient. After being folded, it can be easily lifted out or lifted in through the inspection hole of the chute on the top of the blast furnace, and can be used repeatedly, thereby improving construction efficiency and reducing costs.

[0008] As a preferred embodiment, a further technical solution of the utility model is:

[0009] The main beam of the platform is welded into a square shape with double-channel steel, and the end close to the center tube of the hanging platform is rounded; this gives the main beam of the platform a higher supporting strength, and the round head is conducive to folding and recycling after use.

[0010] One end of the platform main beam away from the suspension tray central cylinder is inserted with a telescopic beam. Between two adjacent telescopic beams, there are multiple detachable secondary beams arranged. A gangplank is arranged above the secondary beams, and both side edges of the gangplank are respectively placed on the adjacent telescopic beams; the bearing surface of the suspension tray is increased, and the bearing radius of the suspension tray is adjustable, which is applicable to furnace shells with different inner diameters.

[0011] A sealing plate is sleeved on the telescopic beam. The sealing plate is fixedly connected to one end of the platform main beam away from the suspension tray central cylinder. A clamping plate is arranged at the inserted end of the telescopic beam; it can prevent the telescopic beam from slipping off the platform main beam.

[0012] On both sides of the platform main beam, multiple pairs of ear plates for connecting with the platform secondary beam are arranged at intervals. Bolt holes are opened on the ear plates and are connected to the platform secondary beam through bolts; it is convenient for installation and disassembly.

[0013] The telescopic beam is made of I-beam. Both ends of the secondary beam are respectively placed on the lower flange plates of the adjacent telescopic beams at both ends and are fixed to the lower flange plates of the telescopic beam through bolts. Description of the Drawings

[0014] Figure 1 It is a top view structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 It is a connection structural schematic diagram of a single platform main beam of an embodiment of the present utility model;

[0016] Figure 3 It is an assembly structural schematic diagram of the platform main beam and the telescopic beam of an embodiment of the present utility model;

[0017] Figure 4 It is a main body structural schematic diagram of the recovery state of an embodiment of the present utility model;

[0018] In the figure, the labels are: bottom plate 1, suspension tray central cylinder 2, rib plate 3, platform main beam 4, pin shaft 5, fixed pressing plate 6, bolt 7, platform secondary beam 8, platform plate 9, lifting lug 10, telescopic beam 11, secondary beam 12, sealing plate 13, gangplank 14, ear plate 15. Detailed Embodiment

[0019] The following further illustrates the present utility model in conjunction with embodiments. The purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0020] See Figures 1 - 3, A foldable hanging tray structure for blast furnace body construction, including a bottom plate 1. At the top of the bottom plate 1, a hanging tray central cylinder 2 is fixed. On the outer periphery of the hanging tray central cylinder 2, multiple pairs of vertically arranged rib plates 3 are evenly distributed at the same height. On each pair of rib plates 3, hinge holes are oppositely opened, and a platform main beam 4 is hinged through a pin shaft 5 arranged. Above the end of the platform main beam 4 far from the hanging tray central cylinder 2, a lifting lug 10 is provided. Above the hanging tray central cylinder 2, a fixed pressing plate 6 is provided. The outer edges of the fixed pressing plate 6 and the bottom plate 1 are respectively located above and below the end of the platform main beam 4, clamping the end of the platform main beam 4 in the middle, and fixedly connected to the platform main beam 4 through a bolt 7 arranged. Between two adjacent platform main beams 4, multiple detachable platform secondary beams 8 are provided. Above the platform secondary beams 8, a platform plate 9 is arranged. The two side edges of the platform plate 9 are respectively placed on the adjacent platform main beams 4.

[0021] The platform main beam 4 is welded into a square shape by double channel steels, and one end close to the hanging tray central cylinder 2 is round-headed; this enables the platform main beam 4 to have a high supporting strength, and the round head is beneficial for folding and recycling after use.

[0022] At the end of the platform main beam 4 far from the hanging tray central cylinder 2, a telescopic beam 11 is inserted. Between two adjacent telescopic beams 11, multiple detachable secondary beams 12 are provided. Above the secondary beams 12, a jump board 14 is arranged. The two side edges of the jump board 14 are respectively placed on the adjacent telescopic beams 11; this increases the supporting surface of the hanging tray, enables the supporting radius of the hanging tray to be adjustable, and is suitable for use with furnace shells of different inner diameters.

[0023] A sealing plate 13 is sleeved on the telescopic beam 11, and the sealing plate 13 is fixedly connected to the end of the platform main beam 4 far from the hanging tray central cylinder 2. A clamping plate is arranged at the inserted end of the telescopic beam 11; this can prevent the telescopic beam 11 from slipping off the platform main beam 4.

[0024] On both sides of the platform main beam 4, multiple pairs of ear plates 15 for connecting with the platform secondary beam 11 are arranged at intervals. Bolt holes are opened on the ear plates 15, and they are connected to the platform secondary beam 11 through bolts; this is convenient for installation and disassembly.

[0025] The telescopic beam 11 is made of I-beam. The two ends of the secondary beam 12 are respectively placed on the lower flange plates of the two adjacent telescopic beams 11 close to them, and are fixedly connected to the lower flange plates of the telescopic beam 11 through bolts.

[0026] During operation, it is lifted integrally by a hoist. After lifting in place, the weld between two adjacent furnace shells is welded. After completion, the hoist equipment is started again to lift to the height required for the next weld until the welding work is completed. After completion, the hanging tray is inside the furnace. First, the jump board 14 is removed, the telescopic beam 11 is retracted into the platform main beam 4, and then the platform plate 9, bolt 7, and fixed pressing plate 6 are removed; the platform main beam 4 rotates through the pin shaft 5, folds and merges, and is then lifted out through the maintenance hole of the blast furnace top chute for transfer and reuse.

[0027] The main platform girders of the utility model can be folded, which is convenient for installation and disassembly. After folding, they can be easily lifted out or lifted into the maintenance hole of the blast furnace top chute, and can be reused multiple times, improving the construction efficiency and reducing the cost at the same time.

[0028] The above are only the preferred and feasible embodiments of the utility model, and do not limit the scope of rights of the utility model. Any equivalent changes made by using the content of the specification and drawings of the utility model are included in the scope of rights of the utility model.

Claims

1. A foldable hanging platform structure for blast furnace body construction, comprising a bottom plate, characterized in that: A hanging platform center tube is fixed on the top of the base plate, and a plurality of pairs of upright rib plates are evenly distributed on the outer circumference of the hanging platform center tube. Hinge holes are opened opposite to each other on each pair of rib plates, and the platform main beam is hingedly connected with the rib plate through a pin shaft. A lifting ear is arranged above the end of the platform main beam away from the hanging platform center tube, and a fixed pressure plate is arranged above the hanging platform center tube. The outer edges of the fixed pressure plate and the base plate are respectively located above and below the end of the platform main beam, and the end of the platform main beam is clamped in the middle and fixedly connected to the platform main beam through bolts. A plurality of detachable platform secondary beams are arranged between two adjacent platform main beams, and a platform plate is arranged above the platform secondary beam, and both sides of the platform plate are respectively erected on the adjacent platform main beams.

2. The foldable hanging platform structure for blast furnace body construction according to claim 1, characterized in that: The main beam of the platform is welded into a square shape with double-channel steel, and the end close to the center tube of the hanging platform is rounded.

3. The foldable hanging platform structure for blast furnace body construction according to claim 2 is characterized in that: A telescopic beam is inserted at one end of the platform main beam away from the central tube of the hanging plate, and multiple detachable secondary beams are arranged between two adjacent telescopic beams. A springboard is arranged above the secondary beam, and both sides of the springboard are respectively built on the adjacent telescopic beams.

4. The foldable hanging platform structure for blast furnace body construction according to claim 3 is characterized in that: A sealing plate is mounted on the telescopic beam, the sealing plate is fixedly connected to one end of the platform main beam away from the central tube of the hanging plate, and a clamping plate is arranged at the insertion end of the telescopic beam.

5. The foldable hanging platform structure for blast furnace body construction according to claim 1, characterized in that: Multiple pairs of ear plates for connecting with the platform secondary beams are arranged at intervals on both sides of the platform main beam. Bolt holes are opened on the ear plates, and they are connected with the platform secondary beams through bolts.

6. The foldable hanging platform structure for blast furnace body construction according to claim 3, characterized in that: The telescopic beam is made of I-beam, and the two ends of the secondary beam are respectively placed on the lower flange plates of the telescopic beam close to the two ends, and are fixed to the lower flange plates of the telescopic beam by bolts.

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