SU1509177A1 - Bucket-type sliding gate - Google Patents

Abstract

This invention relates to the field of metallurgy, and more specifically to steel casting devices. The purpose of the invention is to improve the quality of the metal by ensuring the stability of the purging of the metal with refining powders. The shutter consists of a movable casing 1 with a refractory plate 2, a stationary casing 3 with a refractory plate 4, a glass-collector 5, a pouring glass 6 of a hollow rod 7 placed in the filling glass 6 and tightly connected to the holder 9 in which the metal crystallizer 8 is placed. Consistently behind the mold 8, an elastic transfer device 12 and a feeding mechanism 13 are installed. The rod 7 is connected to the pipeline 15 for supplying the refining powders 15. Pipe 15, prior to casting, first serves argon and then gas-powder the mixture. After purging, clean gas is supplied through the pipeline, and after cleaning the pipes and the hollow rod 7 from the powder using the feeding mechanism 13 and the stopper 10, a mold 8 is introduced into the cavity of the rod, which ensures the metal freezes in the gap between it and the hollow rod 7. The proposed design allows It does not need to perform the supply line of refining powders without pinches, labyrinths along the entire length. This ensures the stability of the purge and allows to obtain a metal of improved quality. 2 hp f-ly, 3 ill.

Description

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The invention relates to metallurgy, and more specifically to devices for steel casting.

The purpose of the invention is to improve the quality of the metal by ensuring the stability of the purging of the metal with refining powders.

FIG. 1 shows the proposed shutter, a general view; in fig. 2 and 3 — node I in FIG. 1, options.

The shutter consists of a movable casing 1 with a refractory plate 2 installed in it, a stationary casing 3 with a refractory plate 4, a reservoir cup 5, a pouring cup 6, a hollow rod 7, is installed. The latter releases the crystallizer 8 and it enters the cavity under the force of the feeding mechanism 13 hollow rod 7 to limiter 17 stroke, where

Before starting the supply of liquid metal to the ladle through pipeline 15 and further along the hollow rod 7, an inert gas, such as argon, is fed, the gas is also supplied to the holder 9 through the gas supply pipe 19. After the metal is filled 1/3 into the pipeline 15, the gas-powder mixture begins to be supplied. The gas-powder mixture is purged due to the implementation of the rod 7 and the pipeline 15 of the same section, without any 10 modes, labyrinths and transitions to small blowing channels.

After purging the metal with powders, a clean gas is supplied through the pipeline 15 and after cleaning the lines and the hollow rod 7

5, g from powder residues through the pipeline 11 refractory plates 2 and 4 - and bottling - gas is supplied to control the stopper 10. glass 6, the metal crystallizer 8 installed behind the hollow rod 7 along the axis of its channel a yoke 9 sealed to the hollow rod 7. The mold 8 is fixed by a stopper 10, 20 and stops. After that, for the remote control of which the gas supply through pipeline 15 is stopped and a pipeline 11 for supplying the spring 19 is patched to the liquid. Liquid metal enters the hollow gas. In the holder 9 successively, beyond the rod 7 and enters the annular gap, the crystallizer 8 is set to be flexible between the crystallizer 8 and the hollow shtan-transfer device 12 and its feed 7, where it freezes. After that, the speeding mechanism 13, having a limiter of 14 g --- .., „..„ ,, „„ „„, „,,„ ,, e

move.

The floor of the rod 7 is connected to the pipeline 15 for supplying refining powders, and the mold 8 is ighed so that it does not overlap the magnetized plate 2 to combine the pouring channel of the pipeline 15 for supplying the filling glass 6 and the glass for collecting powder and a hollow rod 7 , torus 5, is cut with oxygen by a hollow rod 7 having an equal cross-section. The floor in the lower zone of the stacker-collector 5. The pipe-rod 7 has an installation stop 16, a wire 15 with a holder 9, a stopper 10 which is installed on a movable pipe 11 and a feed plate of the refractory plate 2 and a stop 17 35 transferred to the area of the preparation of the slide of the mold, located in its knocking bucket valves for re-upper part. The sleeve 9 is provided with a check valve 18 and a removable pipe 19 for supplying gas. The free space in the holes of the pouring nozzle 6 and the fixed refractory plate 4 is filled with fire-release connections to disconnect the pipelines 15 and 11 and the yoke 9 from the gas and powder paths and feed the ladle to the pouring. After feeding the bucket to the casting by moving the movable refractory

40

use The residues of the hollow rod, which has been cast in the upper zone, are burned out by oxygen, and the valve is used for casting metal.

In case of emergency breakthrough of metal in

resistant powder 20, for example stavroli-time processing powders include a shutter drive for closing. The movable casing 1 with the refractory plate 2, moving relative to the fixed plate 4, perede5, sets the hollow rod 7 and closes the casting channel, excluding the accidental outflow of metal. To facilitate the cutting of the rod 7, the latter, in the zone of the boundary between the movable and stationary refractory plates 2 and 4, may have a reduced 50 section equal to 0.02-0.1 sections of the casting channel.

The feed mechanism 13 provides movement of the mold 8 from the sleeve 9 located outside the purge channel to the upper zone of the hollow rod 7 and guides fixed, for example metal-55 metallization, after the end of the purge, the chester balls. Elastic transfer device 12 sliding slide bucket works to bake the gear moving the crystal as follows. force 8 through the radius of the turn. The flexible transfer device 12 is made in the form of a set of metal balls, and the subfloor 1. mechanism 13 in the form of a spring.

The flexible transfer device 12 can be made in the form of an elastic steel wire with guides attached to the ends, for example metal capsules with a torus outer surface (Fig. 2).

The flexible transfer device 12 can also be made in the form of a spring with tight turns (Fig. 3) or in the form of a steel cable, at the ends of which the last releases the mold 8 and it enters the cavity of the hollow rod 7 to the limiter 17 moves where

from the residual powder, pipeline 11 supplies gas to control the stopper 10. and stops. After that, the gas supply through the pipeline 15 and to the pipe 19 is stopped. Liquid metal enters the hollow rod 7 and enters the annular gap between the crystallizer 8 and the hollow bar 7, where it freezes. After that, quickly - g --- .., „..„ ,, „„ „„, „,,„ „, e

from the residual powder, pipeline 11 supplies gas to control the stopper 10. and stops. After that, the gas supply through the pipeline 15 and to the pipe 19 is stopped. Liquid metal enters the hollow rod 7 and enters the annular gap between the crystallizer 8 and the hollow bar 7, where it freezes. After that, quickly - g --- .., „..„ ,, „„ „„, „,,„ „, e

 The plates 2 combine the pouring holes of the pouring cup 6 and the cup-collector joints to disconnect the pipelines 15 and 11 and the holder 9 from the gas and powder supply paths, and serve the ladle for casting. After feeding the bucket to the casting by moving the movable refractory

ten

mouth, because under the bucket when installing it on a stand or steel truck, there is limited space for the vertical positioning of the feed mechanism 13 and it can only be positioned horizontally. The proposed design allows a supply line of refining powders to a liquid metal, including a hollow rod, without pinches, labyrinths and transitions to shallow channels with a single cross section of the purge channel along the entire length of the gas-powder mixture supply line to the hollow rod, which in turn provides input of refining powders in a liquid metal, makes this process stable, which allows to obtain 15 high quality metals.

Claims (3)

Claims. Sliding bucket valve, containing refractory plates, pouring glass, collector glass with a hollow rod placed in their channels, connected to the refractory powder supply pipeline, a metal crystallizer, characterized in that, in order to improve the quality of the metal by ensuring the stability of the metal purging refining powders , it is equipped with a flexible transfer device, the holder of which is hermetically connected to the hollow rod, and the metal mold is installed in the holder of the flexible transmission device Properties, and the latch position of the mold in the holder. 2. A lock according to claim 1, characterized in that the lock is made in the form of a remotely controlled stopper. 3. The closure according to claim 1, characterized in that the feed link of the flexible gearbox movable and stationary casing 20 of the device is made in the form of a spring. 0 five with refractory plates, a pouring glass, a collector glass with a hollow rod placed in their channels connected to the supply pipe of refining powders, a metal crystallizer, characterized in that, in order to improve the quality of the metal by ensuring the stability of the metal blowing by refining powders, it is equipped with a flexible the transfer device, the holder of which is hermetically connected to the hollow rod, and the metal mold is installed in the holder of the flexible transfer device, and the locking position of the red caster in the cage. 2. A lock according to claim 1, characterized in that the lock is made in the form of a remotely controlled stopper. 3. A lock according to claim 1, characterized in that the feed link of the flexible transmission device is made in the form of a spring. / J / v -S / 2