KR101675262B1

KR101675262B1 - Suspension of converter vessel

Info

Publication number: KR101675262B1
Application number: KR1020150086312A
Authority: KR
Inventors: 이진희; 이성림
Original assignee: 주식회사 포스코
Priority date: 2015-06-18
Filing date: 2015-06-18
Publication date: 2016-11-11

Abstract

The present invention relates to a suspension device of a converter vessel for suspending a converter vessel on a trunnion ring for supporting the vessel and tilting the same. The suspension device of a converter vessel comprises: a horizontal bracket protruding from the vessel; a vertical bracket protruding from the trunnion ring around the vessel and supporting the horizontal bracket; and at least one liner detachably fixated on the contact surface between the horizontal bracket and the vertical bracket.

Description

[0001] Suspension of converter vessel [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device for a transaxle vessel, and more particularly, to a suspension device for a transaxle vessel for suspending a transom vessel in trunnion for supporting and tilting the vessel.

Converter is one of the key facilities in steelworks operations, and is a facility for refining molten steel to make molten steel. Generally, a converter containing molten steel of several tons to several hundreds of tons is continuously operated for 24 hours, and because of the high-temperature molten metal contained therein, it may lead to a shutdown when an abnormal facility symptom such as crack or vibration occurs , The shutdown of the converter may lead to a deterioration or disposal of refuse in the refinery, as well as a great loss in the subsequent performance process.

Generally, the converter should be maintained upright in the direction of gravity during the refining process, and after the refining process is completed, the vessel must be tilted so that the molten steel can be discharged through the lances. In consideration of the weight and size of the vessel, In order to support tiltably, both the gravity direction support at the upright and the lateral support at the tilt should be stably performed.

In order to tiltably support the vessel, the vessel is fixed to the trunnion, the trunnion is supported on a rigid base, the vessel is fixed to the trunnion by rotating the trunnion itself at an arbitrary angle, .

Currently, there are only three or four companies that design and manufacture converters worldwide, each of which has its own distinctive configuration. Most of the companies, regardless of the manufacturer, can achieve gravity direction support without difficulty, There are some improvements in direction support.

Suspensions that secure the vessel to the trunnion are significantly affected by the work performance and lifetime of the converter. The conditions required for the suspension to fix the vessel to the trunnion include, for example:

First, the converter vessel is subject to considerable thermal stress during the refining process, thereby causing asymmetrical deformation, so that allowance is required between the vessel and trunnion to accommodate this deformation.

Secondly, it is required to avoid the gap between the support members in order to minimize the impact load particularly during the turning tilt.

In addition to this, it is possible to reliably cool the barrel region of the iron core constituting the vessel, maintain a sufficient distance between the iron core and the trunnion constituting the vessel, minimize the frictional load between the support members, And a dense design to satisfy limited space conditions.

Korean Patent Laid-Open Publication No. 2001-0054057 Registered Utility Model Registration No. 20-0181923

SUMMARY OF THE INVENTION It is an object of the present invention to provide a suspension device for a transverse vessel for suspending a transverse vessel in trunnion for supporting and tilting the vessel.

According to an aspect of the present invention, a horizontal bracket protruding from a vessel is provided. A vertical bracket projecting from the trunnion around the vessel and supporting the horizontal bracket; And at least one liner detachably fixed to a contact surface between the horizontal bracket and the vertical bracket.

The horizontal bracket may have a square pillar shape.

The horizontal bracket may be inserted into the vertical bracket.

The liner may include a horizontal liner that is in contact with the horizontal bracket and a vertical liner that is in contact with the vertical bracket. The horizontal liner may be formed to be larger than the vertical liner.

The liner may be pressed and fixed by bolts screwed into the vertical bracket.

According to the transceiver suspension apparatus of the present invention, the horizontal bracket protruding from the vessel and the vertical bracket protruding from the trunnion around the vessel surround the horizontal bracket. In particular, It is possible to provide an asymmetrical deformation between the vessel and the trunnion while minimizing the impact load at the time of tilting the transducer, It is possible to provide an effect of increasing the working efficiency and improving the service life of the apparatus.

FIG. 1 is a perspective view showing a suspension device of a transfer vessel according to one embodiment of the present invention. FIG.
FIG. 2 is a partially enlarged perspective view showing only the suspension part of FIG. 1 in an enlarged manner.
3 is an enlarged side view of the suspension unit of FIG.
4 is an enlarged bottom view of only the suspension unit of FIG.
Fig. 5 is an exploded perspective view showing only the suspension part of Fig. 2 in an enlarged manner.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a transverse vessel suspension device 21 according to one embodiment of the present invention includes a horizontal bracket 24 protruding from a vessel 11; A vertical bracket 22 protruding from the trunnion 12 around the vessel 11 and supporting the horizontal bracket 24; And at least one liner (26, 27) detachably fixed to a contact surface between the horizontal bracket (24) and the vertical bracket (22).

3, the horizontal bracket 24 is integrally fixed to the transverse vessel 11 and is formed to protrude from the vessel 11, preferably from the side of the vessel 11 Is supported by a vertical bracket 22 fixed to the trunnion 12 as will be described later so that the vessel 11 functions to be fixed to the trunnion 12 and thereby the trunnion 12 So that the vessel 11 can be tilted. The rotation operation of the trunnion 12 is formed to be integrally fixed to the trunnion 12 and is rotated by rotating the torsion bar 13 rotatably fixed on the rigid support base, The vessel 11 can be tilted by the rotation of the vessel 12.

The horizontal bracket 24 may have a rectangular columnar shape and may include a horizontal bracket 24 of a rectangular columnar shape in order to reliably and easily make the vessel 11 tilted by the rotation operation of the trunnion 12, The bezel 11 can be tilted by the rotation operation of the trunnion 12 even if it is supported by the vertical bracket 22 without requiring a separate additional fastening structure.

The horizontal bracket 24 can be reinforced by the ribs 25 connecting the outer surface of the vessel 11 and the horizontal bracket 24 to each other when the vessel is fixed to the vessel 11, As shown in Fig.

The vertical bracket 22 is fixed to protrude downward from a trunnion 12 fixed around the vessel 11 and supports the horizontal bracket 24. Therefore, as described above, the vessel 11 can be tilted by the rotation operation of the trunnion 12. Here, the expression "protruding downward from the trunnion 12" means a direction in which the vessel 11 is oriented upright on the ground in a direction perpendicular to the ground on the basis of the standing state of the vessel 11 due to gravity .

The horizontal bracket 24 may be received in the vertical bracket 22. That is, the vertical bracket 22 may have a letter U shape in which the horizontal bracket 24 can be inserted. The vertical bracket 22 may have a U- And a horizontal column connecting ends of the vertical columns and the lower ends of the vertical columns, that is, ends of the vertical columns, which are opposed to the bottom surface of the trunnion ring 12, to each other. 22 can support the horizontal bracket 24. Each of the columns constituting the vertical bracket 22 may also have a square column shape like the horizontal bracket 24. When the vertical bracket 22, which is a combination of the square columns, also supports the square bracket 24, a separate additional fastening structure is required due to the surface contact of the square columns. The bezel 11 can be tilted by the rotation operation of the trunnion ring 12 only by being supported by the vertical bracket 22 without being tilted.

The vertical bracket 22 may be reinforced by a rib 23 connecting the bottom surface of the trunnion 12 and the vertical bracket 22 to the trunnion 12, 11 so as to withstand the large force exerted by the weight of the base plate 11.

The liner 26 or 27 means to reduce friction or to put an appropriate material inside the surface of the body in order to prevent corrosion, acid resistance, abrasion resistance, and / or high temperature. In the present invention, As shown, the brackets are inserted between the horizontal bracket 24 and the vertical brackets 22 to reduce the gap between the brackets and thereby reduce the impact generation and flow due to the presence of spacing, Can be prevented.

In particular, at least one of the liners 26 and 27 may be provided, but preferably two or more liners 26 and 27 are inserted between the horizontal bracket 24 and the vertical brackets 22 . When two or more liners 26 and 27 are installed, for example two liners 26 and 27, one of the liners 26 and 27 may face the horizontal bracket 24, The horizontal liner 26 may be divided into a horizontal liner 27 and the vertical liner 27 may include a liner for interfacing the horizontal bracket 24 to the vertical bracket 22. In this case, since the horizontal displacement of the horizontal liner 26, which is relatively high in temperature and fixed to the vessel 11 having a large thermal expansion, occurs more than the lateral displacement of the vertical liner 27, the horizontal liner 26 It is preferable to be formed larger than the vertical liner 27.

The liner 26, 27 may be made of a material having excellent wear resistance and heat resistance, and preferably a metal plate, a resin reinforcing metal plate, a rubber reinforcing metal plate, a fiber reinforced metal plate (preferably a carbon fiber reinforced metal plate) &Lt; / RTI > The metal constituting the metal plate may be selected from the group consisting of cast iron, chrome-reinforced cast iron, stainless steel, aluminum, copper, and alloys of two or more of these.

The liner 26,27 can be fixed to the bracket by the bolts 28 screwed to the vertical bracket 22 so that the liner 26,27 is pressed against the bracket. This can be reversed with respect to the vertical bracket 22 by the rotation of the bolts 26 and 27 screwed to the vertical bracket 22 and can be advanced or retracted in the clockwise direction, Clockwise rotation of the bolt 28 can be reversed, or, conversely, reversed when rotated counterclockwise, and fixed so as to be advanced when rotated counterclockwise, The liner 26 and 27 can be brought into close contact with the bracket by positioning the liner 26 and 27 and moving the bolt 28 relative to the vertical bracket 22 by rotating the bolt 28. [ Such a configuration allows the liner 26, 27 to be detachably fixed to the bracket, thereby deteriorating and / or deforming the liner 26, 27 due to external stress such as thermal stress, Can be easily exchanged after a certain period of use.

The bolt 28 is preferably a super bolt capable of providing a large capacity in accordance with the size of the converter ^. (Superbolt ^? Nord-Lock product of the United States of America).

According to the suspension device 21 of the converter vessel 11 according to the present invention having the above-described configuration, a stable side support structure is formed at the time of tilting the converter to support and compensate stable tilting and thermal expansion behavior of the converter, It contributes to the improvement of productivity and also has the advantage of easy maintenance due to easy access to maintenance and equipment by adopting a side liner structure.

11: Bessel 12: Trunnion
13: Torsion bar
21: Suspension device 22: Vertical bracket
23: rib 24: horizontal bracket
25: rib 26: horizontal liner
27: vertical liner 28: bolt

Claims

A horizontal bracket fixed to the vessel and integrally fixed to the vessel and protruding from the side of the vessel;
A U-shaped vertical bracket fixed to project downward from the trunnion around the vessel and supporting the horizontal bracket and receiving the rectangular bracket horizontally; And
At least two liners detachably fixed to a contact surface between the horizontal bracket and the vertical bracket;
The transducer of the transducer.

delete

The method according to claim 1,
Wherein the liner includes a horizontal liner that is in contact with the horizontal bracket and a vertical liner that is in contact with the vertical bracket.

5. The method of claim 4,
Wherein the horizontal liner is formed to be larger than the vertical liner.

The method according to claim 1,
Wherein the liner is pressed and fixed by a bolt screwed into the vertical bracket.