RU14154U1 - BLASTING DEVICE FOR STEEL FILLING BUCKETS - Google Patents

Abstract

1. The purge device of steel pouring ladles, consisting of a socket block, a purge plug, a refractory insert and a locking mechanism, characterized in that for reliable fixing of the purge plug in the socket block, the bayonet nut is replaced with a nut with a persistent thread with a thread pitch of 8-16 mm, except Moreover, to replace a worn purge plug without disassembling the locking mechanism, the outer diameter (D) of the thrust nut thread is made much larger than the outer diameter of the purge plug (d), and the corresponding shenie2. The purge device according to claim 1, characterized in that in order to prevent destruction in the locking mechanism, the insert is made of metal. The purge device according to claim 1, characterized in that for the exact installation of the socket block relative to the axis of the cover, a catcher is installed in the nut with a threaded thread, made in the form of a metal cone, with the broadened part facing up.

Description

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BLOWING DEVICE FOR STELLER31 SHOWER1-1 BUCKETS

The utility model relates to metallzfgs-g, a. it is precisely to the flow of the metal that is open, neutral, by gas through the purge troughs in the bottom of the steel-digging ladles.

One of the important technological operations of steel production and secondary steel processing is the purging of old inert gases. It is necessary for averaging the composition of the meta; and: a and uniformly dispersing temperature, removal of external gases from the metal, reduction of the amount of nonmetallic inclusions by flotation, as well as for better assimilation of alloying materials and components.

In bucket meta.llsfgii, argon is usually used as gas for production.

As purge systems, porous purge plugs are typically used. .For reliable clogging of blowing plugs in the bucket, potting mechanisms are used.

The most widespread spread is the Klton shutter (see Fu. I, - p. 29 Attached).

However, the wedge shutter has a number of significant drawbacks:

- there is a refractory insert between the socket unit and the cover of the device. In the event that a poor-quality insert is installed during operation, its destruction and subsequent drawdown are possible, which may lead to the passage of the filter through the argon assembly.

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unit, relative to the bottom of the bucket.

Clicking more closely on the technical essence and design, to the proposed technical solution, is a bayonet mount, creator (see figure 2, page 29 of the Appendix).

Dsh1 devices of the type bayonet shutter shortcomings are:

-the presence of refractory inserts, by analogy with a wedge lock;

- spontaneous unscrewing of the bayonet nut due to vibration of the bucket housing arising during the processing of metal in the bucket at the out-of-furnace processing unit;

- the lack of the ability to center the socket unit, when replacing it, relative to the axis of the cover or bayonet nut.

In addition, a common drawback of both designs is that if the replacement of the worn-out trough is necessary, it is necessary to disassemble: the locking mechanism.

The objective of the utility model is to develop a simple design of the locking mechanism with the possibility of a perfect fixation of the purge plug, to prevent unscrewing of the nut and to exclude the passage of sordid metal from the ladle in case of damage to the purge nut or socket block.

The problem is solved due to the fact that, for the exception, the 1st nut is loosened and the purge plug is securely fixed in the locking mechanism of the locking mechanism, the nut is replaced with a nut with a threaded thread with a thread pitch of 8-16 shl, the refractory insert is replaced with metal1 gaesque10. In addition, for replacement of a worn-out purge plug without razborki locking mechanism, the outer diameter (D) of the thrust thread on the nut is made

slightly larger than the outer diameter of the x-ray tube (), and the ratio

"1.10-5-1.25. And for the installation point of the nesting block (to replace it) with respect to the axis of the locking mechanism, a nut with a threaded installation thread. The catch is made in the form of a metal cone facing the broadened part up. In addition, the mass of the metal parts of the locking mechanism is selected in such a way that in the event of destruction of the lock plug IL1.1 of the socket block and the passage of metal, it freezes during KOHTajKTe with the locking mechanism, preventing metal from escaping from the bucket.

The utility model is illustrated by drawings, in which: FIG. 1 - shows a diagram of the installation of the purge fraction and the locking mechanism; Figure 2 - shows the installation diagram of the catcher

The purge device of steel pouring ladles consists of a nut with a threaded thread I and with a thread pitch of 8-16 mm, the nut is screwed into a metal cover 2. The cover is fixed to the support socket 3 with the help of clasp bolts 4 and wedges 5. The support socket 3 is welded to the bottom of the bucket .. The purge plug 6 is installed in the socket block 7 and is fixed with a metal insert 8 and a nut with a threaded thread I (see FigL),

Shshler of a specific implementation of the device First, a locking mechanism with a catcher 9 is assembled, as shown in FIG. 2. Then, a socket block with a plug is installed. The installation of the block relative to the locking mechanism is carried out using a catcher. Nest block

Dalyasin located prshlerno on. 20 mm above the working footer OBGa1. the bottom, the shell and the solution is installed, the gap for the top of the refractory mass should be in the range of 70-120 bds to ensure good mass density. Before installing the cork plug, a refractory mortar is applied to a clean lining surface.

The solution guarantees an even fit of the purge plug.

After installing the unit, the nut is unscrewed, a metal insert is inserted into the socket, the cavity is started, the cavity is filled with a refractory mass, and the nut is tightened again until all the gaps are visible and the purge plug is firmly fixed in the block.

In order to prevent the destruction of the refractory purge plug z of its subsidence in the socket block of the inserts, they perform metal. The increase in the total mass of the metal parts of the locking mechanism allows you to freeze-IID metal in the node in the case of passage of metal in the node.

A major advantage of the proposed technical solution in comparison with the existing drawback of the shut-off device is the possibility of replacing the purge plug on the outside of the bucket.

The proposed device eliminates all the disadvantages inherent in similar shutters.

Through the use of a pre-engineered technical solution, optimal conditions are created for the repair and replacement of hot plugs / plugs. Additional testing Even the locking mechanism in the converter shop of the NSC allowed to increase the service life of the nest block to 50 or more swimming trunks.

The claimed tochnic solution is not known in the Russian Federation and abroad meets the requirements of the criterion

novelty.

The claimed technical solution can be implemented 1Gr01 shch1Sh1nsh way with casting ladles and meets the criteria of industrial adherence.

Use 3 ova and lithium ter atur A design for the operation of flower systems (

Claims (2)

1. The purge device of steel pouring ladles, consisting of a socket block, a purge plug, a refractory insert and a locking mechanism, characterized in that for reliable fixing of the purge plug in the socket block, the bayonet nut is replaced with a nut with a persistent thread with a thread pitch of 8-16 mm, except Moreover, to replace a worn purge plug without disassembling the locking mechanism, the outer diameter (D) of the thrust nut thread is made much larger than the outer diameter of the purge plug (d), and the corresponding shenie

2. The purge device according to claim 1, characterized in that to prevent destruction in the locking mechanism, the insert is made of metal. 3. The purge device according to claim 1, characterized in that for the exact installation of the socket block relative to the axis of the cover, a catcher is installed in the nut with a threaded thread, made in the form of a metal cone facing the broadened part up.