Integral bending section device of continuous casting machine

Abstract

An integral type bending section device of a continuous casting machine is provided with a bending section and an arc-shaped section, the device comprises an outer arc-shaped frame (1), an inner arc-shaped frame, a pull rod (4) and a plurality of free rollers (5), and the bending section and the arc-shaped section are combined together through the following structure: the outer arc-shaped frame (1) is an integral type, the inner arc-shaped frame is a separated type comprising an inner arc-shaped upper frame (2) and an inner arc-shaped lower frame (3), and the inner arc-shaped upper frame (2) is connected with the inner arc-shaped lower frame (3). The inner arc upper frame (2) is used for mounting a bending section free roller, and the inner arc lower frame is used for mounting an arc section free roller; the outer arc frame (1) is connected with the inner arc upper frame (2) and the inner arc lower frame (3) through a plurality of pull rods (4), and the pull rods (4) penetrate through the outer arc frame (1) towards the inner arc upper frame (2) and the inner arc lower frame (3) and are fixed through locking nuts (6). And each pair of bent section and arc-shaped section has the same radian as the use state. According to the utility model, the workload of on-line arc alignment can be saved, and the installation efficiency of the continuous casting machine is improved.

Description

Technical Field

[0001] The utility model belongs to the field of metal continuous casting, in particular to an integral bending section device of a continuous casting machine. Background Art

[0002] The main equipment of the traditional straight-arc slab continuous casting machine, the lower part of the crystallizer, is generally composed of a curved section, an arc section, a straightening section and a horizontal section, and each section of the equipment contains 10-13 pairs of rollers. During the installation and commissioning stage of the continuous casting machine, the arcs of every two adjacent devices must be adjusted so that they are on the same outer arc line. The arc alignment process is cumbersome, and due to the working environment, the adjustment is difficult and the adjustment accuracy is low. At the same time, each single device has a different installation angle and position, and special installation tools are required to install it in place, which places high requirements on the plant space and equipment accuracy. For example, in the prior art, Chinese utility model application No. 202223005874.5 discloses a "curved section frame arranged between the crystallizer and the fan-shaped section of a slab continuous casting machine", in which the curved section and the fan-shaped section are separate. During the installation and commissioning stage of a continuous casting machine with this type of structure, it is necessary to adjust the arcs of every two adjacent devices. The arc alignment process is cumbersome, the adjustment is difficult, and the adjustment accuracy is low. Summary of the invention

[0003] The purpose of the utility model is to provide an integral bending section device for a continuous casting machine, which combines a bending section and an arc section together, each pair of bending sections and arc sections has the same curvature as in the use state, and can accommodate up to 23-30 pairs of free rollers; this can save the workload of online arc alignment and improve the installation efficiency of the continuous casting machine.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An integrated bending section device for a continuous casting machine has a bending section and an arc section, the device comprises an outer arc frame 1, an inner arc frame, a tie rod 4 and a plurality of free rollers 5, the bending section and the arc section are combined together by the following structure: the outer arc frame 1 is an integrated type, the inner arc frame is a separate type including an inner arc upper frame 2 and an inner arc lower frame 3, the inner arc upper frame 2 is used to install the free rollers of the bending section, and the inner arc lower frame is used to install the free rollers of the arc section; the outer arc frame 1 is connected with the inner arc upper frame 2 and the inner arc lower frame 3 by a plurality of tie rods 4, each tie rod 4 passes from the outer arc frame 1 to the inner arc upper frame 2 and the inner arc lower frame 3, and is fixed by a locking nut 6;

[0006] Each pair of the curved segment and the arc segment has the same curvature as in the use state.

[0007] A plurality of free rollers 5 are installed on the arc sides of the outer arc frame 1, the inner arc upper frame 2 and the inner arc lower frame 3, and the total number of free rollers is 23-30 pairs.

[0008] The outer arc frame 1, the inner arc upper frame 2 and the inner arc lower frame 3 are all welded box structures, and there is circulating cooling water in the box.

[0009] A plurality of gaskets 7 are provided at the connection between the outer arc frame 1 and the inner arc upper frame 2 and the inner arc lower frame 3, so as to adjust the relative distance between the free rollers 5 between the inner and outer arcs.

[0010] An automatic water receiving plate is arranged at the lower part of the outer arc frame 1. The automatic water receiving plate is provided with a water interface and a gas interface, which are used to automatically connect with the system water interface and gas interface on the equipment foundation when the equipment is installed.

[0011] The welded box structure of the outer arc frame 1 is welded by a plurality of steel plates, and the free rollers arranged on the arc side of the outer arc frame 1 are fixed to the frame by bolt connection.

[0012] The welded box structures of the inner arc upper frame 2 and the inner arc lower frame 3 are respectively welded by a plurality of steel plates, and the free rollers arranged on the arc sides of the inner arc upper frame 2 and the inner arc lower frame 3 are fixed to the frame by bolt connection.

[0013] The beneficial technical effects of the utility model are:

[0014] The utility model is different from the traditional straight arc slab continuous casting machine equipment. The bending section and the arc section are combined together, and can accommodate up to 23-30 pairs of free rollers. During the installation stage, the equipment can be installed in place at one time by the overhead crane, and the arc alignment work on the line is omitted, which greatly improves the installation efficiency. Maintenance and repair only need to be hoisted out of the line for maintenance, and the accuracy is much higher than that of the arc alignment on the line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the integral continuous casting machine bending section device of the utility model;

[0016] Figure 2 yes Figure 1 Top view from the center M direction.

[0017] Reference numerals

[0018] 1 Outer arc frame 2 Inner arc upper frame

[0019] 3 inner arc lower frame 4 pull rod

[0020] 5 Free roller 6 Lock nut

[0021] 7. Gasket DETAILED DESCRIPTION

[0022] The utility model discloses an integral bending section of a continuous casting machine, which is applied to a straight arc type slab continuous casting machine production line. The bending section is located below a crystallizer and plays the role of supporting, cooling and guiding the casting slab.

[0023] like Figure 1-2 As shown, an integral continuous casting bending section equipment comprises an outer arc frame 1, an inner arc upper frame 2, an inner arc lower frame 3, a tie rod 4 and a free roller 5. The outer arc frame 1 is connected to the inner arc upper frame 2 and the inner arc lower frame 3 through the tie rod 4, the inner arc upper frame 2 and the inner arc lower frame 3 are respectively connected to the outer arc frame 1 through the tie rod 4, the inner arc upper frame 2 is located above the inner arc lower frame 3, the inner arc upper frame 2 and the inner arc lower frame 3 are separated from each other and not connected, and the free rollers of the bending section and the arc section are respectively installed; the tie rod 4 passes from the outer arc frame 1 to the inner arc upper frame 2 and the inner arc lower frame 3, and is fixed with a locking nut 6. A plurality of free rollers 5 are installed on the relative arc surfaces of the outer arc frame 1, the inner arc upper frame 2 and the inner arc lower frame 3, and preferably 23-30 pairs of free rollers 5 are arranged. The outer arc frame 1, the inner arc upper frame 2 and the inner arc lower frame 3 are all welded box structures, and the box body is cooled by water; the outer arc frame 1 is connected to the inner arc upper frame 2 and the inner arc lower frame 3 respectively by a pull rod 4, and a gasket 7 is arranged at the connection between the outer arc frame 1 and the inner arc upper frame 2 and the inner arc lower frame 3 to adjust the relative distance between the free rollers 5 between the inner and outer arcs; an automatic water receiving plate is arranged at the lower part of the outer arc frame 1, with a water interface and a gas interface on it, which is placed on the equipment foundation when the equipment is installed and automatically connected to the water and gas interface of the system.

Claims

1. An integrated bending section device for a continuous casting machine, comprising a bending section and an arc section, characterized in that: The device comprises an outer arc frame (1), an inner arc frame, a tie rod (4) and a plurality of free rollers (5), wherein the bending section and the arc section are combined together by the following structure: the outer arc frame (1) is an integrated type, and the inner arc frame is a separate type including an inner arc upper frame (2) and an inner arc lower frame (3), wherein the inner arc upper frame (2) is used to install the free rollers of the bending section, and the inner arc lower frame is used to install the free rollers of the arc section; the outer arc frame (1) is connected to the inner arc upper frame (2) and the inner arc lower frame (3) by a plurality of tie rods (4), and each tie rod (4) passes from the outer arc frame (1) to the inner arc upper frame (2) and the inner arc lower frame (3), and is fixed by a locking nut (6); Each pair of the curved segment and the arc segment has the same curvature as in the use state.

2. The continuous casting machine integral bending section device according to claim 1, characterized in that: A plurality of free rollers (5) are installed on the arc sides of the outer arc frame (1), the inner arc upper frame (2) and the inner arc lower frame (3), and the total number of free rollers is 23-30 pairs.

3. The continuous casting machine integral bending section device according to claim 1, characterized in that: The outer arc frame (1), the inner arc upper frame (2) and the inner arc lower frame (3) are all welded box structures, and there is circulating cooling water in the box.

4. The continuous casting machine integral bending section device according to claim 1, characterized in that: A plurality of gaskets (7) are arranged at the connection between the outer arc frame (1) and the inner arc upper frame (2) and the inner arc lower frame (3) to adjust the relative distance between the free rollers (5) between the inner and outer arcs.

5. The continuous casting machine integral bending section device according to claim 1, characterized in that: An automatic water receiving plate is arranged at the lower part of the outer arc frame (1), and the automatic water receiving plate is provided with a water interface and a gas interface, and is used for automatically connecting with the system water interface and gas interface on the equipment base when the equipment is installed.

6. The continuous casting machine integral bending section device according to claim 1, characterized in that: The welded box structure of the outer arc frame (1) is welded from a plurality of steel plates, and the free rollers arranged on the arc side of the outer arc frame (1) are fixed to the frame by bolt connection.

7. The continuous casting machine integral bending section device according to claim 1, characterized in that: The welded box structures of the inner arc upper frame (2) and the inner arc lower frame (3) are respectively welded from a plurality of steel plates, and the free rollers arranged on the arc sides of the inner arc upper frame (2) and the inner arc lower frame (3) are fixed to the frame by bolt connection.

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