Large-diameter steel chimney barrel rolling device

Abstract

The utility model discloses a large-diameter steel chimney barrel rolling device which is arranged on a platform and used for supporting a barrel and comprises a rotating roller structure and a supporting structure, the rotating roller structure is arranged on the supporting structure and used for supporting the barrel, and the supporting structure is arranged on the platform and used for supporting the rotating roller structure. The supporting structure comprises at least six supporting rods which are arranged on the platform and used for supporting the rotating roller structure and connecting rods which are arranged on the supporting rods and used for stabilizing the supporting rods. The large-diameter steel chimney barrel rolling device not only can be applied to the rolling process of a large-diameter steel chimney barrel, but also can be applied to the rolling process of a large-diameter flue in a flue gas purification system, has the characteristics of usability and practicability, avoids the uncertainty of off-site manufacturing and transportation, changes the traditional barrel rolling process, and improves the production efficiency. The manufacturing cost of the large-diameter steel chimney is greatly reduced, and the on-site construction progress is accelerated to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of large-diameter cylinder rolling, in particular to a large-diameter steel chimney cylinder rolling device. Background Art

[0002] During the construction of industrial buildings, construction companies usually have to manufacture and install large-diameter steel chimneys. The traditional method for manufacturing such large-diameter cylinders is to divide the rings into sections and press them into arcs. After the arc-shaped plates are rolled, the multiple sections are hoisted to a special jig by a crane and assembled and welded into rings. When assembling and welding using the traditional method, it is inevitable to use related tools such as fall chains and crowbars. The roundness and verticality of the cylinder cannot be guaranteed. There is also the risk of mechanical injury, as well as difficulties in matching and installation during hoisting.

[0003] Traditional manufacturing processes are often limited by processing equipment, transportation methods, etc. Many industrial construction projects are located in remote locations and have tight project schedules. Large-diameter cylindrical components are difficult to transport when outsourced for processing, and there may be multiple transshipments, which makes the components easy to deform during transportation. During on-site production, multiple sections of annular steel plates are often assembled into rings, and the quality of welds and construction progress cannot be guaranteed. Utility Model Content

[0004] The utility model aims to provide a large-diameter steel chimney barrel rolling device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a large diameter steel chimney cylinder rolling device, which is arranged on a platform and used to support the cylinder, comprising:

[0006] A roller structure, which is arranged on the supporting structure and is used to support the cylinder;

[0007] The supporting structure is arranged on the platform and is used for supporting the roller structure.

[0008] Preferably, the support structure comprises a support rod disposed on the platform for supporting the roller structure, and a connecting rod disposed on the support rod for stabilizing the support rod, and the support structure is used to connect the roller structure.

[0009] Preferably, the number of the support rods is not less than six, and three support rods are arranged in a group in a mirror-image manner on the platform.

[0010] Preferably, the roller structure includes a support plate arranged on the support rod, and a first roller and a second roller arranged on the support plate, and the roller structure is used to support the cylinder.

[0011] Preferably, the first roller and the second roller have the same length, and the length of the first roller and the second roller is slightly longer than the width of the cylinder.

[0012] Preferably, the number of the support plates is not less than four, and all of the support plates are disposed at the end points of the first roller and the second roller, for connecting the first roller and the second roller.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the large-diameter steel chimney barrel rolling device can not only be used in the process of rolling large-diameter steel chimney barrels, but also can be used in the process of rolling large-diameter flues in flue gas purification systems. It has the characteristics of ease of use and practicality, avoids the uncertainty of off-site production and transportation, changes the traditional process of rolling barrels, greatly reduces the production cost of large-diameter steel chimneys, and greatly speeds up the progress of on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A side view schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a rear view schematic diagram of an embodiment of the utility model.

[0016] In the figure:

[0017] 1. First roller 2. Second roller 3. Connecting rod

[0018] 4. Support rod 5. Support plate 6. Platform

[0019] 7. Cylinder 7 DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 As shown, the utility model provides a technical solution: a large-diameter steel chimney barrel rolling device, which is arranged on a platform 6, the material of the platform 6 is a steel plate, which is used to support the entire device, and is used to weld the barrel 7 with a plate rolling machine, and is used to support the barrel 7. The barrel 7 is a preliminarily rolled large-diameter steel chimney barrel 7, including: a roller structure and a supporting structure, the roller structure is arranged on the supporting structure, and is used to support the barrel 7, and the supporting structure is arranged on the platform 6, and is used to support the roller structure.

[0022] like Figure 2 As shown, the support structure includes a support rod 4 arranged on the platform 6 for supporting the roller structure. The support rod 4 is a DN100 steel pipe for bearing the support plate 5, and a connecting rod 3 arranged on the support rod 4 for stabilizing the support rod 4. The material of the connecting rod 3 is L70 equilateral angle steel. There are four connecting rods 3, two in a group, which are mirror-imaged on the support rod 4 to stabilize the support rod 4 and ensure that the support rod 4 will not bend when supporting the cylinder 7. The support structure is used to connect the roller structure. The number of support rods 4 is not less than six, three in a group, which are mirror-imaged on the platform 6.

[0023] The roller structure includes a support plate 5 arranged on the support rod 4, and a first roller 1 and a second roller 2 arranged on the support plate 5, ensuring that the first roller 1 and the second roller 2 can rotate on the support plate 5, so as to effectively prevent the damage caused by wear by rolling when supporting the cylinder 7. The roller structure is used to carry the cylinder 7. The lengths of the first roller 1 and the second roller 2 are consistent, ensuring that there will be no jamming when carrying the cylinder 7. The lengths of the first roller 1 and the second roller 2 are slightly longer than the width of the cylinder 7, ensuring that the cylinder 7 can roll and slide on the first roller 1 and the second roller 2, so that there will be no jamming. The number of support plates 5 is not less than four, and the four support plates 5 are used to support the two side endpoints of the first roller 1 and the second roller 2 to ensure that there will be no jamming. They are all arranged at the endpoints of the first roller 1 and the second roller 2 to connect the first roller 1 and the second roller 2.

[0024] The first roller 1 and the second roller 2 are supported by the support plate 5 , and the first roller 1 and the second roller 2 carry the cylinder 7 .

[0025] As shown above, this embodiment performs CNC blanking according to the actual size of the pre-rolled cylinder 7 after unfolding. The circumferential seam and longitudinal seam grooves of the cylinder 7 are both external grooves to ensure blanking accuracy and installation assembly accuracy. After the flat plates are spliced ​​and welded, a plate that meets the unfolded length of the pre-rolled cylinder 7 is obtained. The entire stabilizing device is placed in front of the three-roll plate rolling machine, ensuring that the first roller 1 and the second roller 2 are parallel to the upper roller of the plate rolling machine, and the obtained plate end is pre-bent and placed on the plate rolling machine, ensuring that the end face of the plate is parallel to the upper roller of the plate rolling machine to ensure that the plate is neatly aligned after rolling is completed, and there will be no large and small heads. The plate is fed between the upper and lower rollers, and the three-roll plate rolling machine is adjusted. The plate is rolled by the downward pressure of the upper roller and the rotation of the lower roller. After bending to a certain arc, the end of the plate is placed on the second roller 2, and the cylinder 7 is continued to be rolled to the height of the first roller 1. The rollers continue to assist the plate in rolling. The rollers can fit well with the rolled steel plate to improve the stability and safety during rolling, ensure that the pre-bent cylinder 7 is not subjected to lateral forces, and prevent twisting. Use a lifting device to assist in construction. When the degree of rolling and bending makes the end faces at both ends of the plate aligned, the seams are uniform, and the process requirements are met, stop rolling, and then weld the seams at the seams at both ends according to the requirements of the welding process. After the longitudinal seam is welded, the cylinder 7 is rolled and corrected. When the roundness and inner diameter of the cylinder 7 meet the design requirements, the cylinder 7 is lifted from the three-roller plate rolling machine to complete the rolling of the cylinder 7.

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

Claims

1. A large diameter steel chimney cylinder rolling device, which is arranged on a platform and used to support the cylinder, characterized in that: include: A roller structure, which is arranged on the supporting structure and is used to support the cylinder; The supporting structure is arranged on the platform and is used for supporting the roller structure.

2. The large diameter steel chimney barrel rolling device according to claim 1 is characterized in that: The supporting structure comprises a supporting rod disposed on the platform for supporting the roller structure, and a connecting rod disposed on the supporting rod for stabilizing the supporting rod.

3. The large diameter steel chimney barrel rolling device according to claim 2 is characterized in that: The number of the support rods is no less than six.

4. The large diameter steel chimney barrel rolling device according to claim 2 is characterized in that: The roller structure includes a support plate arranged on the support rod, and a first roller and a second roller arranged on the support plate.

5. The large diameter steel chimney barrel rolling device according to claim 4 is characterized in that: The first roller and the second roller have the same length.

6. The large diameter steel chimney barrel rolling device according to claim 4 is characterized in that: The number of the support plates is no less than four, and all of the support plates are arranged at the end points of the first roller and the second roller.

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