UA89498C2 - Device for supporting and oscillating continuous casting mold for continuously casting molten metals, particularly molten metal materials, and method of assembling or disassembling and maintaining the device - Google Patents

Abstract

The invention relates to a device for supporting and oscillating a continuous casting mold (1) for continuously casting molten metals, particularly molten metal materials, comprising: guide elements (4) symmetrically arranged on both sides of the central longitudinal axis (2) of the casting; fixed supporting parts (5), and; a continuous casting mold (1) supported on paired oscillating devices (6). The inventive device facilitates the accessibility to individual modules for maintaining and/or eliminating damages. To this end, a module (7) that, itself, can be removed, is formed from paired bearing blocks (9) with guide elements (4) and with a supporting casing (7a) connected to said bearing blocks. The module is placed upon a stationary submodule (7b) and detachably connected thereto.

Description

This method can be modified by the fact that after dismantling the assembly of paired support blocks with guide elements and the carrier box connected to the support blocks, the rocking mechanism is kept in its assembled and ready-to-work functional position, and other maintenance work is carried out without interruption hydraulic connection. Divided into nodes, the bearing parts and guide elements and the rocking mechanism assembly allow dismantling of the bearing parts and guide parts assembly, and this stage of the method is performed without breaking the hydraulic circuit of the rocking mechanism. A significant advantage of using individual nodes is the elimination of contamination of the hydraulic circuit due to the optional replacement of the rocking mechanism.

Below is a detailed description of examples of implementation of the invention with references to the attached drawings, which show:

Fig. 1 - the supporting structure, located on both sides of the rivulet at the filling site, in isometric projection;

Fig. 2 - supporting structure, according to Fig. 1, in a vertical projection;

Fig. 3 - a completely removable node in an isometric projection; and

Fig. 4 - fixed lower node.

The device for supporting and rocking the crystallizer 1 for continuous pouring is mainly intended for obtaining a continuous slab of liquid steel materials, and the billet exits in the direction of the middle longitudinal axis 2 of the trough. The node shown in Fig. 1 is used on both sides of the Z plane of symmetry.

To a large extent, the self-supporting crystallizer 1 is supported and moved with the help of guide elements 4. Guide elements 4 can be formed from eccentrics, guide levers, various springs or, as shown in Fig.1, from plate springs. In the implementation example, packages of leaf springs are provided.

The weight of the crystallizer 1 with liquid material, respectively, the workpiece being formed, can be perceived by the fixed bearing parts 5 and pairs of rocking mechanisms 6. The bearing parts 5 form a completely removable unit 7, which is removably connected to the base plate fixed on the pouring platform. Bearing parts 5, respectively, node 7, have support blocks 9, on which guide elements 4 are fixed (in this case, packages of plate springs). In the embodiment shown in Fig. 1, the guide elements 4 are fixed with the help of clamping plates 16 both outside and inside 17 of the length with the help of screws 18 in the corners of the square.

At the same time, the support blocks 9 form each part of a continuous (consisting of one part) wall beam 11, which rests on the intermediate plate 12 and is fixed on it. In the wall beam 11, openings Pa are provided for access to the cooling elements of the crystallizer or fastening of the crystallizer in the direction of the side Ta of the crystallizer. In addition, in the embodiment shown in Fig. 1, in the wall beam 11 there is a free space 12a for the lower guide elements 4. The intermediate plate 12 forms, together with the lower plate 13 and a plurality of horizontally spaced supporting walls 14, the lower node 70 .

Also, a node 7 (see Fig. 3) is formed from support blocks 9, respectively, a pair of wall beams 11, one or more clamping plates 16, guide elements 4, while the node 7 is removably fixed on the intermediate plate 12 using screws.

The rocking mechanism is protected inside the fixed lower assembly 70 and is connected to the hydraulic circuit. The rocking mechanism b is located between two supporting walls 14 in the lower zone on the flange plate 10 (see Fig. 2). The cylinder-piston block ba passes through the entire node 7 (see Fig. 3) and carries the extension rod bs on its piston rod bob. The rod bs is surrounded by a protective pipe ba.

The extension rod 6bs (see Fig. 4) is removably connected to the supporting box 7a. At the same time, the rocking mechanism 6 can be removed through the flange plate upwards from the fixed lower unit 7b, which. however, necessary only in rare cases.

On the supporting side plates 7c, 74, a support plate 20 and a closing plate 19 above it are fixed, which has guide spikes 21 for the crystallizer 1 for repeated precise installation of the crystallizer 1.

The extension rod bs fixed on the piston rod b6b passes through the support plate 20 and is connected through the carrier box 7a to the crystallizer 1.

Crystallizer 1 is installed with the help of a crane on the base plate 20 with guide spikes 21, which is located under the closing plate 19.

A component part of the supporting parts 5 is also a superstructure 22 (see Fig. 1, 2 and 4) for the connection 23 of the cooling water (input) and the connections 24a, 2465 of the cooling water (outlet), which lead to the connection plate 25.

Bearing parts 5 in the form of a node 7 are lifted with the help of a crane during disassembly and installed during assembly.

The composition of the unit can vary from case to case within certain limits, as long as the condition is met, which ensures a simple, easy and time-saving replacement of the bearing parts 5 and guide elements 4, when they need to be serviced or replaced due to wear.

Fig. 4 shows the lower node 70 with the node 7 completely removed. Among other things, guide elements 4 and clamping plates 16, screws 18, one-piece wall beam 11 with support blocks 9, closing plate 19, support plate 20 are removed. with guide spikes 21. As shown in Fig. 4, easy access to the rocking mechanism b with cylinder-piston blocks ba is opened. The cylinder-piston blocks can be pulled up and reassembled in the reverse order.

Thus, Fig. 1-4 shows and describes the method of assembly or disassembly of the device for rocking the crystallizer 1 for liquid metals, in particular liquid steel materials, while in one stage of disassembly, firstly, the unit 7, which is removable in general, is removed, and then, if necessary, you can pull up the corresponding rocking mechanism 6, and when installing, perform these actions in the reverse order.

This method for assembly, disassembly or maintenance of the device for shaking the crystallizer 1 for liquid metals, in particular for liquid steel materials, can be performed so that after dismantling the unit 7 from the paired support and blocks 9 with guide elements 4 and connected to the support blocks 9 by the carrier box 7a, the rocking mechanism 6 is kept in its assembled and ready-to-work state, and other maintenance work is performed without interrupting the hydraulic connection. Due to this, a very important condition for eliminating contamination of the hydraulic circuit is fulfilled.

List of reference items 1 Crystallizer for continuous pouring 1a Crystallizer side 2 Medium longitudinal axis of the workpiece

C Plane of symmetry 4 Directional elements

Bearing parts 6 Rocking mechanism ba Cylinder-piston block br Piston rod bs Extension rod ba Protective pipe 7 Self-removable whole assembly 7a Bearing box 76 Lower assembly 7c Bearing side plate 7a Bearing side plate 8 Base plate 9 Support blocks

Flange plate 11 One-piece wall beam 11a Slot 12 Intermediate plate 12a Free space 13 Bottom plate 14 Retaining wall

Lower screws 16 Clamp plate 17 Mid-length 18 Screws 19 Cover plate

Support plate 21 Guide pin 22 Superstructure 23 Cooling water connection, inlet 24a Cooling water connection, outlet 2465 Cooling water connection, outlet

Connecting plate for water 26 Transport eyes.

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