JPS62282769A - Guide rail device for replacement of nozzle - Google Patents

Abstract

PURPOSE:To improve the operation rate of a casting work by providing a detaining member on a molten metal pouring container, and also, providing a detaining mechanism on a carrying guide rail side. CONSTITUTION:A supporting frame for attaching a guide fail 1 to a pouring container A is formed by main frame 5 and a sub-frame 6. A pin inserting hole 11 is provided on a tip part of the sub-frame 6, and also, a pin inserting hole 12 is placed in a receiving bracket 9 of the container A side, and a guide rail device 10 is detained and fixed to the container A by connecting it with a lock pin. A preheating nozzle N-1 for replacement use is prepared on a carrying truck B, the pouring container A is made to ascend to a prescribed height in the direction as indicated with an arrow (a), together with an old nozzle N-2, and in its position, the nozzles N-2, N-1 are replaced through an insertion bar D. A positioning work at the time of replacing the nozzle is followed automatically by the guide rail device 10, therefore, the replacement time is shortened. Accordingly, the operation rate of a casting work is improved.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Industrial Application Field] The present invention relates to a nozzle for a tap container such as a canister, a tanditsukar, a tandi, and a cup, especially connected to a sliding nozzle for continuous casting. The present invention relates to a guide rail device that is suitably used when replacing a submerged nozzle.

[Conventional technology]

As a device for attaching the nozzle to the hot water container when replacing such a nozzle and for transporting the used nozzle,
For example, Japanese Patent Application Laid-Open No. 1983-56768 (Japanese Patent Application No. 59-1
There is a device described in No. 77304 (FjA).

For nozzle replacement work using such a replacement device, a guide rail is used that is connected to the replacement device.

[Problem that the invention seeks to solve]

However, in order to connect such a guide rail to a replacement device, it is necessary to once raise the brewing container and then perform alignment for connecting the rails, which takes time and has poor workability. Not only that, but much of the work itself is done manually, which poses safety issues.

The problem to be solved by the present invention is to solve the problems in the guide rail device for such a replaceable nozzle device, which eliminates the need for position adjustment when connecting, improves workability and safety, and further reduces the time required for replacement. The present invention provides a guide rail for conveying a submerged nozzle that can shorten the length of the submerged nozzle.

[Means for solving problems]

The present invention provides a structure in which the guide rail device follows the rise of the hot water tap container by providing a locking member on the hot water tap container and providing a locking mechanism that locks on the same member on the nozzle conveying guide rail device. This eliminates the need for positioning the replacement g position and the guide rail device.

The specific structure of the present invention will be explained below with reference to the attached drawings showing its implementation B.

FIG. 1 is a diagram showing the overall structure of the guide rail device IO of the present invention.

In the figure, l indicates guide rails arranged in parallel for sliding the immersion nozzle, and 2 indicates supports fixed on both outsides of the guide rail l for attaching the guide rail 1 to the pouring container. 3 indicates a fixed frame for fixing both guide rails 1 in parallel positions,
Reference numeral 4 indicates a connecting portion for connecting with the guide of the nozzle exchange device.

FIG. 2 shows the detailed structure of the support frame 2, and FIG. 3 shows how to install it.

In Fig. 2, the support frame 2 consists of a main frame 5 fixed to the guide rail 1 and a subordinate frame 6 fixed to the main frame 5. A locking mechanism is provided that engages with a locking member 8 provided on the side surface. A passing rod 7 is attached to this locking mechanism, and as shown in FIG. ing.

Further, a pin insertion hole 11 is bored at the tip of the slave frame 6, and a lock pin 13 is inserted into the pin insertion hole 12 provided in the bracket 9, as shown in FIGS. 2 and 3. By doing so, the guide rail device 10 can be locked and fixed to the outside of the hot water container A, as shown in FIG.

In these figures, the lock pin 13 is inserted, but the shaft may be fixed to the guide rail itself in the same way as the passing rod 7, and the receiver may be a groove instead of the insertion hole 12 of the bracket 9. .

In any case, the guide rail device 10 of the present invention has a structure in which it is locked and supported at two points on the locking member 8 of the container A. This means that when the submerged nozzle is supported at any position on the rail 1, force is applied in either the clockwise or counterclockwise direction, and in order to receive these forces and to hold the guide rail constant, This is because the two-point support structure is relatively simple.

As described above, since the guide rail device of the present invention has a structure that is locked to the outer wall of the pouring container, even if the pouring container A is raised when replacing the nozzle, the guide rail device 1O itself will not be attached to the container. Follow the rise. Therefore, the height of the locking mechanism of the guide rail device 10 and the rail l immersion nozzle is adjusted according to the difference in level between the locking member of the container and the replacement device disposed below it when the container is raised. There is no need to do anything special, and after the Tanditsh rises,
This allows immediate replacement of new and old nozzles, improving work safety and further reducing replacement time.

The guide rail device of the present invention described above is based on the above-mentioned Japanese Patent Application Laid-Open No.
It can be suitably used by connecting it with the submerged nozzle exchange device described in Japanese Patent No. 56768.

The guide rail device of the present invention will be described below in Japanese Patent Laid-Open No. 61-5
The procedure for replacing a submerged nozzle by connecting it with the submerged nozzle replacement device described in Japanese Patent No. 6768 will be explained with reference to the attached drawings from FIG. 4 onwards.

B. Preparation for Replacement FIG. 4 shows a state in which the guide rail device 10 of the present invention is engaged with and attached to the locking member 8 of the tundish A in the manner shown in FIGS. 2 and 3. The nozzle N-1, which has been preheated at a location not shown, is mounted on the carrier B, and as shown in FIG. Prepare for replacing the installed submerged nozzle N-2. C indicates a nozzle exchange device. FIG. 5 shows the positional relationship between the nozzle carrier B and the guide rail I at this time.

Replacing the spout and nozzle When replacing the immersion nozzle, as shown in Figure 6,
Close the stopper (not shown) of Tanditshu A,
When moving the nozzle, the tundish A is raised together with the nozzle N-2 to be replaced to a height where the lower end of the nozzle does not touch the upper surface of the platform P, as shown by arrow a. As the container rises, the guide rail device 10 that is locked and fixed to the tundish A also moves to the tundish A.
It follows the rise of container A in a state that matches the level of the nozzle exchange IC installed at the bottom of the container. As the entire guide rail device 10 rises, the rail portion 1 also rises, and here the shoulder portion N211 of the preheated immersion nozzle N-1 is
It is supported and suspended between.

The supported and suspended immersion nozzle N-1 is inserted into the apparatus 10 by opening the front MB-1 of the carrier vehicle B and using the insertion bar D.

FIG. 7 to FIG. 1O show Type B of the replacement work in the nozzle replacement device C disposed below the tundish.

First, as shown in FIG. 7, from the state shown in FIG. 6, the guide rail device 10 is pushed into the introduction passage A of the exchange device C by a pushing tool. Further, as shown in FIG. 8, the introduction passage A leads to the exchange passage opening that intersects the tip thereof.

After confirming that the replacement nozzle N-1 is completely pushed into the replacement passage opening, as shown in FIG. -1 and at the same time push out the installed nozzle N-2 into the discharge passage C. At that time, the discharge hydraulic system E-2
is in a state of being evacuated from the discharge passage C.

Furthermore, after arranging the replacement nozzle N-1 directly below the tundish and pushing out the installed nozzle N-2 into the discharge passage C, the discharge hydraulic system E-2 is moved as shown in FIG.
to drive the installation nozzle N- as shown in Fig. 11.
2 to the tip of the rail 1 of the guide rail device 10. A replacement trolley B is waiting at this tip position.

During this time, the installation of the replacement nozzle N-1 placed under the tundish A is completed.

Finally, as shown in Fig. 12, after lowering the tundish A, the installed nozzle N-2 that has been pushed out to the tip of the rail 1 of the guide rail device IO is carried out using the cart B, and the nozzle is replaced. finish.

〔Effect of the invention〕

In the present invention, the guide rail itself is configured to move following the elevation of the tundish, so there is no need to adjust the height of the kite rail when replacing the immersion nozzle, improving the efficiency of the replacement work. , it is possible to increase the operating rate of the continuous casting operation itself.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the overall structure of the guide rail device of the present invention, and FIGS. 2 and 3 are diagrams showing working modes for installing the guide rail device. Figures 4 to 6, Figures 11 and 12 are explanatory diagrams of the operating state of the guide rail device of the present invention, and Figures 7 to 10 illustrate the movement state when replacing the nozzle from the container. FIG.

Claims (1)

[Claims] 1. It has a rail that connects to the guide rail of the nozzle exchange device arranged below the hot water brewing container, and is provided with a locking mechanism that locks to a locking member provided below the side of the hot water pouring container. A guide rail device for nozzle replacement, which is characterized by: