Hoisting structure for segmented installation of steel cone of sintering desulfurization tower

Abstract

The utility model belongs to the technical field of steel structure construction, and particularly relates to a hoisting structure for segmented installation of a sintering desulfurizing tower steel cone, which comprises a through beam, a horizontal straining beam, a reinforcing support and a hoisting mechanism, a horizontal straining beam is fixedly connected to the middle of the through beam, the two ends of the horizontal straining beam are fixedly connected with sintering desulfurization tower stand columns through reinforcing supports respectively, a lifting lug is arranged in the middle of the bottom of the through beam, a lifting hook is connected with a hoisting mechanism through a steel wire rope passing through the lifting lug, and the reinforcing supports on the two sides of the horizontal straining beam and the through beam form a symmetrical cable-stayed reinforcing structure. And the included angle between the reinforcing support and the through beam is 45-60 degrees. The utility model has the beneficial effects that the mounting of the cone of the desulfurizing tower is quickly completed under the condition that the framework of the desulfurizing tower is not dismounted, and compared with an integral dismounting and mounting scheme, the aims of shortening the construction period and improving the labor productivity are fulfilled.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure construction technology, and in particular relates to a hoisting structure for segmented installation of steel cones in sintering desulfurization towers. Background Technology

[0002] In the maintenance work of the sintering desulfurization tower cone, the tower body is generally over 50 meters high, with the steel cone section to be installed ranging from 20 to 40 meters in height and weighing 70 tons. Since the installation of the steel cone is carried out without dismantling the outer frame, this presents significant challenges to conventional installation operations. If a complete dismantling and reinstallation of the outer frame were adopted, large cranes would be required, which would not only occupy more space but also necessitate more time and financial resources. Utility Model Content

[0003] The purpose of this utility model is to provide a hoisting structure for segmented installation of the steel cone of a sintered desulfurization tower, which overcomes the shortcomings of the existing technology. It allows for the installation of the desulfurization tower cone without dismantling the desulfurization tower frame, thus accelerating the project progress. Compared with the overall dismantling and installation scheme, it achieves the goal of both shortening the construction period and improving labor productivity, ensuring that the desulfurization tower is put into operation as soon as possible, and increasing the economic benefits of the enterprise.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A hoisting structure for segmented installation of a sintered desulfurization tower steel cone includes a through beam, a horizontal tie beam, reinforcing supports, and a hoisting mechanism. The through beam is mounted on the support of the sintered desulfurization tower, and the left and right ends of the through beam are respectively fixedly connected to the columns of the sintered desulfurization tower. A horizontal tie beam is fixedly connected to the center of the through beam, and the two ends of the horizontal tie beam are respectively fixedly connected to the columns of the sintered desulfurization tower through reinforcing supports. A lifting lug is provided at the center of the bottom of the through beam, and the hook is connected to the hoisting mechanism through the lifting lug via a steel wire rope. The reinforcing supports on both sides of the horizontal tie beam and the through beam form a symmetrical diagonal bracing reinforcement structure, and the angle between the reinforcing supports and the through beam is 45° to 60°.

[0006] Furthermore, the through beam is an H1000×300 type H-beam.

[0007] Furthermore, the horizontal tie beam is an HM294×200 hot-rolled medium-flange H-beam.

[0008] Furthermore, the reinforcing brace is an HM294×200 hot-rolled medium-flange H-beam.

[0009] Furthermore, reinforcing ribs are provided between the two flanges on both sides of the web of the through beam.

[0010] Furthermore, the reinforcing ribs are 22-25 mm thick, and the spacing between adjacent reinforcing ribs is 600-900 mm.

[0011] Furthermore, the hoisting mechanism is a 5t worm gear winch + 4×4 pulley block, the wire rope is (6×37+1)φ32.5mm, and a four-point 60° angle hoisting structure is adopted on the steel cone.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) This solution enables the rapid installation of the desulfurization tower cone while retaining the desulfurization tower frame, thus accelerating the project progress. Compared with the overall dismantling and installation solution, it achieves the goals of both shortening the construction period and improving labor productivity, ensuring that the desulfurization tower is put into operation as soon as possible and increasing the company's economic benefits.

[0014] 2) This solution meets the segmented hoisting requirements of large steel cones in confined spaces. By using the steel columns and supports of the desulfurization tower frame to enhance the structural strength, it ensures that the structure is safe under stress and will not become unstable under maximum lifting conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the application of an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the cone hoisting sequence in an embodiment of this utility model;

[0017] In the diagram: 1-through beam, 2-horizontal tie beam, 3-reinforcing brace, 4-sintering desulfurization tower support, 5-sintering desulfurization tower column, 6-lifting lug, 7-hook, 8-hoisting mechanism, 9-reinforcing rib, 10-outer frame. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0020] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but only to illustrate selected embodiments of the invention.

[0021] See Figure 1-2 This is a schematic diagram of a hoisting structure for segmented installation of a steel cone in a sintering desulfurization tower, comprising a through beam 1, a horizontal tie beam 2, reinforcing supports 3, and a hoisting mechanism 8. The through beam 1 is mounted on a support 4 of the sintering desulfurization tower, with the left and right ends of the through beam 1 respectively fixedly connected to the columns 5 of the sintering desulfurization tower. The horizontal tie beam 2 is fixedly connected to the center of the through beam 1, with the two ends of the horizontal tie beam 2 respectively fixedly connected to the columns 5 of the sintering desulfurization tower via reinforcing supports 3. A lifting lug 6 is provided at the center of the bottom of the through beam 1, and a hook 7 is connected to the hoisting mechanism 8 via a wire rope through the lifting lug 6. The reinforcing supports 3 on both sides of the horizontal tie beam 2 form a symmetrical diagonal reinforcement structure with the through beam 1, with the angle between the reinforcing supports 3 and the through beam 1 being 45-60°.

[0022] This embodiment of the utility model was designed using Beijing Lizheng software. The through beam 1 is an H-beam with specifications of H1000×300×18×24 and a length of 18.8 meters. The horizontal tie beam 2 is a hot-rolled, medium-flange H-beam with specifications of H294×200×8×12. The reinforcing brace 3 is also a hot-rolled, medium-flange H-beam with specifications of H294×200×8×12. All the above profiles are made of Q355B steel. After verification, its strength met the requirements for hoisting construction. A 130t hydraulic crane was used to hoist the structure to the 44.3m support of the desulfurization tower frame (located above the cone). Under maximum lifting conditions, the original frame did not become unstable.

[0023] A reinforcing rib 9 is provided between the flanges on both sides of the web of the through beam 1. The reinforcing rib 9 is 25mm thick, and the spacing between adjacent reinforcing ribs 9 is 600-900mm, preferably 800mm.

[0024] The hoisting mechanism 8 is a combination of a 5t worm gear winch and a 4×4 pulley block, with a rated lifting capacity of approximately 40t.

[0025] In this embodiment of the invention, the installation and welding of the tapered segment assembly under the outer frame 10 is divided into six sections (see attached). Figure 2 Construction was carried out in sequence, with the first, second, third, fourth, fifth, and sixth sections installed. All sections were installed using a lifting structure pulley block. Temporary operating platforms were set up inside and outside the construction platform before installation. All cone sections were assembled and welded on the construction platform, and then a lifting structure was used in conjunction with a winch mechanism 8. A four-point 60° angle lifting structure was used on the steel cone. The heaviest section weighed approximately 20 tons.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting structure for segmented installation of a steel cone-shaped sintering desulfurization tower, characterized in that, The system includes a through beam, a horizontal tie beam, reinforcing supports, and a hoisting mechanism. The through beam is mounted on the support of the sintering desulfurization tower. The left and right ends of the through beam are fixedly connected to the columns of the sintering desulfurization tower. A horizontal tie beam is fixedly connected to the center of the through beam. The two ends of the horizontal tie beam are fixedly connected to the columns of the sintering desulfurization tower through reinforcing supports. A lifting lug is provided at the center of the bottom of the through beam. The hook is connected to the hoisting mechanism through the lifting lug by a steel wire rope. The reinforcing supports on both sides of the horizontal tie beam form a symmetrical diagonal bracing reinforcement structure with the through beam. The angle between the reinforcing supports and the through beam is 45° to 60°.

2. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 1, characterized in that, The through beam is an H1000×300 type H-beam.

3. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 1, characterized in that, The horizontal tie beam is an HM294×200 hot-rolled medium-flange H-beam.

4. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 1, characterized in that, The reinforcing brace is an HM294×200 hot-rolled medium-flange H-beam.

5. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 1, characterized in that, The through beam has reinforcing ribs between the flanges on both sides of the web.

6. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 5, characterized in that, The reinforcing ribs are 22-25mm thick, and the spacing between adjacent reinforcing ribs is 600-900mm.

7. The hoisting structure for segmented installation of the steel cone of a sintering desulfurization tower according to claim 1, characterized in that, The hoisting mechanism is a 5t worm gear winch + 4×4 pulley block; the wire rope specification is 6×37+1, with a diameter of φ32.5mm; the wire rope adopts a four-point hoisting structure on the steel cone, and the wire rope is at a 60° angle.

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