On-line replacing device for foot roller frame of small square billet crystallizer

Abstract

The utility model discloses a small square billet crystallizer foot roll frame on-line replacing device, which comprises a fixing plate, a foot roll support and a dummy bar sleeve, the fixing plate is provided with a foot roll surface and a dummy bar surface, the foot roll surface and the dummy bar surface are oppositely arranged, the foot roll support is assembled on the foot roll surface, the dummy bar sleeve is assembled on the dummy bar surface, and the dummy bar sleeve is assembled on the dummy bar surface. The foot roller support is used for being connected with a crystallizer foot roller, and the dummy bar sleeve is used for being connected with a dummy bar. The crystallizer foot roller is conveyed in a dummy bar conveying mode, accuracy and stability of fixed bolt hole positions of the crystallizer foot roller are improved, labor intensity of operators is relieved, working efficiency is improved, the operators can be effectively prevented from being damaged when the operators replace the foot roller in a lifting mode, and labor intensity of the operators is reduced. Stability and safety in the continuous casting process are improved, and the device is simple in structure and easy to manufacture and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the continuous casting technology field of steelmaking especially a small square billet crystallizer foot roller frame on -line replacement device. BACKGROUND

[0002] At present with the continuous development of steel technology, the smelting time of converter is shortened continuously, the casting machine pulling speed is promoted continuously, and the crystallizer foot roller as the key device in the continuous casting system plays a key role in the whole continuous casting system. The role of the crystallizer foot roller is to guide the dummy bar into the crystallizer, and also plays a guiding role to the copper pipe, prevents the dummy bar head from rubbing the lower opening of the crystallizer copper pipe when sending the dummy bar, another role is to support and guide the primary billet shell after the crystallizer, thereby reducing the occurrence of the accidents such as the square billet off or the leakage of steel. In the current continuous casting production process, the highest pulling speed of the continuous casting machine can reach 5.0 m / min with the crystallizer foot roller, and can only reach 3.7 m / min without the crystallizer foot roller, which greatly influences the production efficiency of the continuous casting machine.

[0003] In the production process, leakage may be caused by process, operation, equipment and other reasons, and the foot roller is stuck, in order to ensure the efficient operation of the continuous casting machine, the crystallizer foot roller is cut off, so the on-line replacement of the crystallizer foot roller becomes particularly important. However, in the on-line replacement process of the foot roller, the secondary cooling chamber is in a relatively closed small, high temperature and high humidity environment, there is a great safety risk, at the same time, the two rows of foot rollers commonly used in the continuous casting workshop weigh about 80 pounds, at least two people need to manually lift to remove and fasten the bolts in the replacement process, the space is crowded and easy to cause injury, and the labor intensity of the employees is greatly increased, so a crystallizer foot roller on-line replacement device needs to be designed to ensure the safe and stable operation of the production. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a small square billet crystallizer foot roller frame on-line replacement device, which changes the way of manually lifting the foot roller to the crystallizer port for bolt fixation to the way of conveying the foot roller to the crystallizer port by the dummy bar for bolt fastening, so as to solve the problems raised in the above background technology.

[0005] The utility model solves the technical scheme that the technical scheme adopts: a small square billet crystallizer foot roller frame on-line replacement device, including fixed plate, foot roller support and dummy bar sleeve, the fixed plate is provided with foot roller surface and dummy bar surface, the foot roller surface and dummy bar surface are opposite, the foot roller support is assembled on the foot roller surface, the dummy bar sleeve is assembled on the dummy bar surface, the foot roller support is used for connecting with the crystallizer foot roller, and the dummy bar sleeve is used for connecting with the dummy bar.

[0006] As a further improvement of the present application: the foot roller support is provided with a foot roller opening at one end away from the foot roller surface, and the foot roller opening of the foot roller support is provided with a foot roller cavity inwardly recessed.

[0007] As a further improvement of the present application: the dummy bar sleeve is provided with a dummy bar opening at one end away from the dummy bar surface, and the dummy bar opening of the dummy bar sleeve is provided with a dummy bar cavity inwardly recessed.

[0008] As a further improvement of the present application: the fixing plate is provided as a square steel plate.

[0009] As a further improvement of the present application: the foot roller support is provided with four foot roller plates, and any foot roller plate is fixedly connected with the fixing plate along the edge of the fixing plate.

[0010] As a further improvement of the present application: the fixing plate and the four foot roller plates jointly form the foot roller cavity.

[0011] As a further improvement of the present application: there is a space between the two adjacent foot roller plates.

[0012] As a further improvement of the present application: the dummy bar sleeve is provided as a square.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The present application adopts the mode of sending the dummy bar to send the crystallizer foot roller, improves the accuracy and stability of the fixed bolt hole of the crystallizer foot roller, reduces the labor intensity of the operator, improves the work efficiency, can effectively avoid the injury of the operator in the lifting mode for replacing the foot roller, improves the stability and safety in the continuous casting process, and the present application has the advantages of simple structure, easy manufacturing and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the present application;

[0016] Figure 2 is a side structural schematic view of the present application;

[0017] Figure 3 is a cross-sectional structural schematic view of the present application;

[0018] Figure 4 is a top view structural schematic view of the present application;

[0019] In the drawing, 1 is a foot roller support, 2 is a fixing plate, and 3 is a dummy bar sleeve. DETAILED DESCRIPTION

[0020] In order to clearly and completely understand the technical solutions, the present application will be further described in conjunction with the embodiments and the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0021] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0022] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0024] The embodiment of the present application provides a small square billet crystallizer foot roller frame online replacement device, which comprises a fixed plate 2, a foot roller support 1 and an ingot rod sleeve 3, the fixed plate 2 is provided with a foot roller surface and an ingot rod surface, the foot roller surface and the ingot rod surface are oppositely arranged, the foot roller support 1 is assembled on the foot roller surface, the ingot rod sleeve 3 is assembled on the ingot rod surface, the foot roller support 1 is used for being connected with the crystallizer foot roller, and the ingot rod sleeve 3 is used for being connected with the ingot rod.

[0025] In the small square billet crystallizer foot roller frame online replacement device of the present application, three components of the fixed plate 2, the foot roller support 1 and the ingot rod sleeve 3 are mainly used, the foot roller support 1 and the ingot rod sleeve 3 are assembled on the two sides of the fixed plate 2 in opposite directions, the ingot rod is assembled into the ingot rod sleeve 3 and the crystallizer foot roller is assembled into the foot roller support 1 to form a combined body, and the combined body is sent to the bottom of the crystallizer, the crystallizer foot roller is locked with the crystallizer by using screws, the present application sends the ingot rod to transport the crystallizer foot roller, the accuracy and stability of the fixed bolt hole position of the crystallizer foot roller are improved, the labor intensity of the operator is reduced, the work efficiency is improved, the harm to the operator caused by the lifting replacement of the foot roller can be effectively avoided, the stability and safety in the continuous casting process are improved, the present application has a simple structure and is easy to manufacture and maintain.

[0026] In one embodiment of the utility model, the foot roller support 1 is provided with a foot roller opening at one end away from the foot roller surface, and the foot roller opening of the foot roller support 1 is provided with a foot roller cavity inwardly recessed, and the crystallizer foot roller is connected in the foot roller cavity of the foot roller support 1. The foot roller opening is arranged on the foot roller support 1, the crystallizer foot roller is loaded into the foot roller cavity along the foot roller opening, the connection between the crystallizer foot roller and the foot roller support 1 is realized, and the crystallizer foot roller is supported.

[0027] In one embodiment of the utility model, the dummy bar sleeve 3 is provided with a dummy bar opening at one end away from the dummy bar surface, and the dummy bar opening of the dummy bar sleeve 3 is provided with a dummy bar cavity inwardly recessed, and the dummy bar is connected in the dummy bar cavity of the dummy bar sleeve 3. The dummy bar opening is arranged on the dummy bar sleeve 3, the dummy bar is loaded into the dummy bar cavity along the dummy bar opening, the connection between the dummy bar and the dummy bar sleeve 3 is realized, and since the dummy bar is below the crystallizer foot roller, when the dummy bar sleeve 3 and the foot roller support 1 are arranged on the dummy bar and the crystallizer foot roller respectively, the dummy bar plays a supporting role, and in use, the shaking caused by manual lifting and the damage caused by the falling of the foot roller during bolt fastening can be effectively prevented.

[0028] In one embodiment of the utility model, the fixed plate 2 is arranged as a square steel plate.

[0029] In one embodiment of the utility model, the foot roller support 1 is provided with four foot roller plates, and any foot roller plate is fixedly connected to the fixed plate 2 along the edge of the fixed plate 2.

[0030] In one embodiment of the utility model, the fixed plate 2 and the four foot roller plates jointly form the foot roller cavity.

[0031] In one embodiment of the utility model, there is a space between any two adjacent foot roller plates.

[0032] In one embodiment of the utility model, the dummy bar sleeve 3 is arranged as a square.

[0033] The online replacement device for the small square billet crystallizer foot roller frame of the utility model adopts a 10mm thick steel plate as the fixed plate 2, and the foot roller support 1 and the dummy bar sleeve 3 with the same size as the dummy head and the foot roller are welded on both sides, the dummy bar is below the crystallizer foot roller, the dummy bar sleeve 3 and the foot roller support 1 are arranged on the dummy bar and the crystallizer foot roller respectively, the shaking caused by manual lifting and the damage caused by the falling of the foot roller during bolt fastening can be effectively prevented in use, the replacement time is saved, and the safety and stability of the steelmaking production are ensured.

[0034] The utility model discloses a device for the operation of the continuous casting process, and the device comprises a foot roller support 1, a foot roller 2 and a dummy bar sleeve 3.

[0035] The utility model discloses a device for the operation of the continuous casting process, and the device comprises a foot roller support 1, a foot roller 2 and a dummy bar sleeve 3.

[0036] According to the technical scheme and technical conception of the utility model, various corresponding transformation schemes can be made by the ordinary skilled in the art without creative mental labor after reading the utility model document, and all belong to the range protected by the utility model.

Claims

1. An online replacement device for the foot roller frame of a small billet crystallizer, characterized in that, It includes a fixed plate, a foot roller bracket, and a dummy bar sleeve. The fixed plate is provided with a foot roller surface and a dummy bar surface, which are arranged opposite to each other. The foot roller bracket is assembled on the foot roller surface, and the dummy bar sleeve is assembled on the dummy bar surface. The foot roller bracket is used to connect with the crystallizer foot roller, and the dummy bar sleeve is used to connect with the dummy bar.

2. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 1, characterized in that, The foot roller support has a foot roller opening at one end away from the foot roller surface. The foot roller opening of the foot roller support is recessed inward to form a foot roller cavity. The crystallizer foot roller is connected to the foot roller cavity of the foot roller support.

3. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 2, characterized in that, The end of the tacking rod sleeve away from the tacking rod surface is provided with a tacking rod opening. The tacking rod opening of the tacking rod sleeve is recessed inward to provide a tacking rod cavity. The tacking rod is connected to the tacking rod cavity of the tacking rod sleeve.

4. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 3, characterized in that, The fixing plate is a square steel plate.

5. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 4, characterized in that, The foot roller bracket is provided with four foot roller plates, and any one of the foot roller plates is fixedly connected to the fixed plate along the edge of the fixed plate.

6. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 5, characterized in that, The fixed plate and the four foot roller plates together form a foot roller cavity.

7. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 6, characterized in that, There is a gap between two adjacent foot rollers.

8. The online replacement device for the foot roller frame of a small billet crystallizer according to claim 1, characterized in that, The ingot rod sleeve is square.

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