CZ109494A3 - Apparatus for cooling converter trunnions - Google Patents

Abstract

The device consists of an insert (16) of the convent pin (4) (1) housed in a bore (5) of the pin (4) and provided with a ring (6) with holes (17) and a nitrogen distributor (13) in which it is located the faceplate (15) adjacent to the ring (6) is formed at least one nozzle (9) and which is articulated by means of a clamping device flanges (18) and O-rings (8,19) with insert (16) the pin (4) and the pin (4).

Description

(57) The apparatus consists of both an insert (16) of the pin (4) of the convector (1) housed in an opening (5) of the pin (4) and provided with a ring (6) with openings (17); at least one nozzle (9) is formed at the end plate (15) adjacent to the ring (6) and is articulated by means of a clamping flange (18) and sealing rings (8, 19) to the insert (16) of the pin (4); with its own pin (4).

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Device for cooling steel converter pins ^

Technical field T T

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cooling the converter pins for the production of steel as a rule using oxygen.

steelmaking

BACKGROUND OF THE INVENTION

Converter flaps are used for tilting:

convertor a. They are usually mounted in rolling bearings, in which the prescribed or the highest difference in bearing components given by the prescribed steel converter with the pin in operation must not be exceeded. In the bearing, it heats from the container, therefore it needs to be cooled. The demand for this cooling increases with the gradual wear of the refractory and in many cases limits the permissible degree of wear of this container insulation and is a factor for. and also the consumption of these refractory insulations. It is known and in most cases used to cool these pins with water, usually by flowing through the hole in the pin, which at the same time serves to supply the cooling pivot shaft and the media through the maintenance converter pin and the fixed ones. The disadvantage is that it is proportional to years, especially currencies and speci Př cies. In this case, from the consumption point of view between in winter, when the equipment freezes and is damaged during operating breaks. Also is: the way we cool; The circulation t-m υ 1 e. is about the lubrication of bearings and its indirect cooling. However, this method of cooling the converter pins is operationally and investment intensive and relatively inefficient, since it cools part of the journal and the bearing at the same time, which has little effect on the prescribed journal and bearing temperature difference. Furthermore, the chlorine process is also known

This method of cooling the pins has not yet been resolved to provide a highly effective, unresolved issue of the design of these tubes suitable for the subject matter.

It is also known to cool the converter pins by passing the working media, especially oxygen, required for the technological process of blowing these media into the converter bath. However, this method of cooling the converter pins is not very efficient, since these media generally have a higher temperature.

SUMMARY OF THE INVENTION

These drawbacks are remedied by the steel converter plug cooling device according to the invention, which consists, on the one hand, of a converter plug insert housed in a pin hole and provided with a ring with holes, and on the other hand of a nitrogen distributor. one nozzle. and which is articulated by means of a clamping flange and sealing rings to the pin insert and the pin itself, the advantage is that it limits the need for nitrogen cooling medium to. relatively short periods of time. The converter is in operation before. The device is low maintenance-intensive, as it does not require a complicated tight connection between the pivot pin and a fixed nitrogen supply.

BRIEF DESCRIPTION OF THE DRAWINGS

An exemplary embodiment of the apparatus for cooling the steel converter pins of the invention is illustrated in FIG. In the accompanying drawings, Fig. 1 shows a partial cross-section of a converter and a converter pin and Fig. 2 shows a detail of a device for cooling the converter pins. and a simple pivot connection between the converter pivot pin and a fixed nitrogen supply,

An exemplary embodiment of the invention comprises an insert pin 16 of the converter pin 4 housed in the bore 5 of the pin 4 and provided with a ring 6 with bores 17 '. Furthermore, the device is formed by a nitrogen distributor 13, in which the face plate 15 adjacent to the ring S of the insert 17 is formed by five nozzles 3. The nitrogen distributor 13 is articulated by means of the clamping flange 15 and the sealing rings 18, 19 to the pin insert 18 and the actual pin 4 of the converter 7. The insert 1 ' of the pin 4 is rigidly connected to the pivot joint 7 for the supply of working media. The vessel of the converter 1 with refractory insulation 2 is mounted in the supporting ring 3 with a pin 4 which is housed in the bearing 12.

Nitrogen flows through its supply line 14 to the distributor 13 and then to the nozzles 9 with subsequent expansion, after which the nitrogen volume increases and the temperature decreases. Further, nitrogen flows at high velocity through an annular 10 formed by an opening 5 in the pin 4 through the insert to the carrier ring 3 of the converter 7, where it flows to the vessel

1S of the converter pin 1. Nitrogen inlet to achieve the prescribed le ρ ot 4 4 kunv er t ur u 1 located in front of the bearing ii. ¹ · ·! - '. .i '

X · cl cl C ie ie ie ie ie ie ie ie ie.

The temperature detected by the thermocouple Nitrogen consumption is thus limited by the operation of the converter. Here, the cooling effect is effectively cooled not only but also the part of the converter vessel 7, the temperature of which is decisive for the pressure of the pin 4.

The device can also be used to extinguish gas or other medium supplied by the pin 4 in case of leakage and subsequent ignition.

Claims (1)

PATENT CLEARING (characterized in that the pin of the converter C1) is formed by an insert (16) housed in the bore (5) of the pin (5). 4) and provided with a ring (6) with openings (17) and a nitrogen distributor (13), the front plate (15) adjacent to the ring (6) being formed with at least one nozzle (3) and only being articulated by means of the clamping flange (13) of the sealing rings (3, 13) to the spigot (16) of the spigot (4) and the spigot (4)