CN2401566Y

CN2401566Y - Three-point hanged converter

Info

Publication number: CN2401566Y
Application number: CN 99259071
Authority: CN
Inventors: 田永奋; 李志强
Original assignee: BAOTOU GENERAL DESIGN INST OF IRON AND STEEL CHINESE METALLURGY BUILDING GROUP
Current assignee: BAOTOU GENERAL DESIGN INST OF IRON AND STEEL CHINESE METALLURGY BUILDING GROUP
Priority date: 1999-12-30
Filing date: 1999-12-30
Publication date: 2000-10-18
Anticipated expiration: 2009-12-30

Abstract

The utility model relates to a three point ball hinged hung tipping converter which is characterized in that a converter casing passes through a hanger plate and a ball hinged bearing and is hung on a supporting ring, a guide device is arranged between the converter casing and the supporting ring, so, no ball hinged bearing is above the supporting ring, and only the guide device with lower height is arranged above the supporting ring; a skirt plate which is installed at stand is ensured, so, steel slag can be easy to slide along the upper surface of the skirt plate, the slag can not be easy to form blocks, and the operation safety of the converter is enhanced.

Description

The converter of fascinating of a kind of 3 ball pivot suspension types

The utility model relates to the converter of fascinating of a kind of 3 ball pivot suspension types, is applicable to the compound steel-making converter that blows of the oxygen top blown or the end, top.

At present, oxygen converter steelmaking is still the main method of domestic and international steel-making, and people have designed converter installation miscellaneous for this reason.The connection form of converter shell and backing ring also has several, and similar structure of the present utility model has following three kinds:

First kind is that furnace shell adopts 3 self-aligning spherical supports with connecting of backing ring, promptly end face is evenly being arranged three semisphere seats on backing ring, the converter seat is on hemisphere, the hemisphere seat is on the hemisphere seat, a bolt is worn in the centre links up body of heater and backing ring, for small vessel, the shortcoming of this connection is: have three to exceed the very high bolt of backing ring end face, nut on backing ring, if skirtboard is set on it, it is mild just to make skirtboard install, and the slag from fire door spills is difficult for landing, make stove emit the position accumulated slag too many, converter will produce the negative moment of fascinating more greatly.

Second kind is with the ball socket bearing of three boatswain chairs by the boatswain chair two ends furnace shell to be bearing on the backing ring, and ball socket bearing is installed in the supporting base on the backing ring end face on the boatswain chair, by pin boatswain chair and backing ring is linked up, and its shortcoming and first kind are identical.

The third form and difference of the present invention are to continue to prolong downwards below the boatswain chair, weld out a guide holder at the furnace shell bottom position, are through with the boatswain chair lower end by pin, wear three pins on each boatswain chair, make difficulty is installed.In addition, this structure allows boatswain chair both bear the weight of converter, and again by the horizontal relative position of boatswain chair assurance converter and backing ring, boatswain chair width size will be very big so simultaneously.

The purpose of this utility model is the converters of fascinating of a kind of 3 ball pivot suspension types of providing at above-mentioned the deficiencies in the prior art part.

The utility model adopts following measure to realize:

Furnace shell is hung furnace shell on backing ring by boatswain chair and ball socket bearing, is provided with liner between furnace shell and backing ring.

The boatswain chair that connects furnace shell and backing ring has three, along the circumferential direction become 120 ° of angles to arrange, wherein two boatswain chairs are the boatswain chair of living, all there is ball socket bearing at two ends, by pin be connected in respectively on the furnace shell and backing ring in, another boatswain chair is an one for fixing boatswain chair and backing ring, be below connect with furnace shell by ball socket bearing and pin.

Have three liners between furnace shell and the backing ring, all be arranged in trunnion axis direction backing ring upper and lower, respectively establish one up and down at screech owl axle side backing ring, cropped ear axle side backing ring top has one.

Liner is made up of orienting lug and guide holder; Wherein orienting lug is placed on the backing ring, and on furnace shell, one group of following guide holder is welded on the furnace shell two groups of top guide holders with bolt; Three groups of guide holders are arranged on the furnace shell, on each orienting lug and the guide holder contact surface removable liner plate is arranged.

Accompanying drawing and drawing explanation:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1 of the present utility model;

Fig. 3 is the sectional view of A-A among Fig. 2 of the present utility model.

Wherein: [1]-liner, [2]-cropped ear axle, [3]-ball socket bearing, [4]-liner plate, [5] [7]-boatswain chair, [6]-furnace shell, [8]-backing ring, [9]-screech owl axle, [10]-skirtboard, [11]-pin, [12]-guide holder, [13]-orienting lug.

Below in conjunction with accompanying drawing enforcement of the present utility model is described in further detail:

The utility model at first adopts three boatswain chairs [5] [7] furnace shell [6] and backing ring [8] to be linked up than bearing [3] and pin [11] by ball, the ball socket bearing [3] of movable boatswain chair [7] upper end is installed in backing ring [8] inside, this has just overcome the shortcoming of above-mentioned first kind and second kind significantly, it is very upright that skirtboard [10] is installed, that is: the angle of skirtboard and body of heater vertical center line is very little, make and be difficult for accumulated slag on the skirtboard, improved the security of converter inclining, all there is ball socket bearing [3] to be at the boatswain chair two ends because furnace shell is worked under up to 200-400 ℃ hot conditions when smelting, not only body of heater is in short transverse, and reach radial direction around and all exist thermograde, because this thermograde causes the different thermal expansion of furnace shell each several part to make it produce thermal stress deformation, adopt the present invention, can be subjected to displacement angle with backing ring [8] freely with the distortion of furnace shell [6] changes, and not distich is hinged with the living additional stress of buying property, and guarantees safe operation.

Fixedly boatswain chair [5] and backing ring [8] are an integral body, and the ball socket bearing [3] by the lower end connects with furnace shell, and this boatswain chair can play the positioning action of circumferential direction.

Liner [1] is established three groups altogether, is contained in respectively on the backing ring upper and lower surface gudgeon medullary ray, and liner can make furnace shell and backing ring remain correct relativeness in the horizontal direction.The structure of liner is: three groups of guide holders are arranged on furnace shell, and on furnace shell, one group of following guide holder is welded on the furnace shell [6] two groups of top guide holders with bolt.Be welded with three orienting lugs on the backing ring, removable liner plate [4] is arranged on each orienting lug and the guide holder contact surface.

Advantage of the present utility model is that guider is simple for structure, and reliability is strong.

Claims

1, a kind of 3 ball pivots are hung the converter of fascinating, and it is characterized in that: furnace shell [6] is hung furnace shell on backing ring [8] by boatswain chair [5] [7] and ball socket bearing [3], is provided with liner [1] between furnace shell and backing ring.

2, a kind of 3 ball pivots according to claim 1 are hung the converter of fascinating, it is characterized in that: the boatswain chair [5] [7] that connects furnace shell and backing ring has three, along the circumferential direction become 120 ° of angles to arrange, wherein two boatswain chairs are the boatswain chair [7] of living, all there is ball socket bearing [3] at two ends, by pin [11] be connected in respectively on the furnace shell and backing ring in, another boatswain chair [5] is one for fixing boatswain chair with backing ring, be below pass through ball socket bearing [3] and pin [11] connects with furnace shell.

3, a kind of 3 ball pivots according to claim 1 are hung the converter of fascinating, it is characterized in that: have three liners [1] between furnace shell and the backing ring, all be arranged in trunnion axis direction backing ring upper and lower, respectively establish one up and down at screech owl axle [9] side backing ring, cropped ear axle [2] side, the backing ring top has one.

4, a kind of 3 ball pivots according to claim 1 are hung the converter of fascinating, and it is characterized in that: liner [1] is made up of orienting lug and guide holder [12]; Wherein orienting lug [13] is placed on the backing ring [8], and on furnace shell, following one group of guide holder [12] is welded on the furnace shell [6] two groups of top guide holders with bolt; Be welded with three orienting lugs on the backing ring [8], on each orienting lug [13] and guide holder [12] contact surface removable liner plate [4] arranged.