CN206185134U - Big packet of be built by contract of continuous casting - Google Patents

Abstract

The utility model relates to a big packet of be built by contract of continuous casting, including the bottom seal, the open cylindrical frame in upper end, frame inner bottom butt welding has " bifurcation " font strengthening rib of interval distribution, the strengthening rib highly be less than the frame height and apart from frame top 45 50mm, the frame intussuseption is filled with the fibrous magnesia pouring of mixed steel wire material, and magnesia pouring material covers the strengthening rib, and the two skeleton texture of constitution are connected with the strengthening rib to the steel wire fibre, and honeycomb is expected to constitute with steel wire fibre and magnesia pouring by inside each strengthening rib of magnesia pouring material. The utility model discloses a magnesia pouring material moulding by casting, anti deformability is strong, is difficult for droing, and it is low successfully to have solved big packet of be built by contract of continuous casting life, changes frequent difficult point, uses stably, and sealed thermal insulation performance is good, and life promotes by a wide margin.

Description

A kind of big bag clad of continuous casting

Technical field

The utility model belongs to the big bag clad of field of metallurgy, and specific this says it is a kind of big bag clad of continuous casting.

Background technology

Field of metallurgy, continuous casting big bag clad effect is to prevent the molten steel heat radiation from causing the temperature drop to influence molten steel continuously cast property Can, fully play heat insulation effect.Traditional big bag clad of continuous casting is the big clad of cellulosic, is damaged seriously when in use, and the life-span is low, main It is by more than the 1500 DEG C high temperature heat radiations of molten steel, filament contraction and efflorescence, while big bag mouth work under bad environment, residual to want reason The mechanical failure of steel, residue to cellulosic clad；If in addition, the big bag clad service life of continuous casting it is low, it is necessary to frequently change, more When changing there is huge potential safety hazard in work high above the ground.

Utility model content

Technical problem to be solved in the utility model is：A kind of big bag clad of continuous casting is proposed, to reach reduces cost, is carried Clad heat-insulating property high, extends the purpose of clad service life.

The utility model solve above technical problem technical scheme be：

A kind of big bag clad of continuous casting, including bottom end closure, open upper end cylindrical frame, bottom is welded with interval in framework " bifurcation " font reinforcement of distribution, the height of reinforcement is less than frame height and apart from frame roof 45-50mm；Filling in framework There is the castable of mixing steel wire fibre, castable covering reinforcement, steel wire fibre connects and composes double bones with reinforcement Frame structure, castable each reinforcement of inside constitutes honeycomb with steel wire fibre and castable.

So, using " bifurcation " font reinforcement structure of reinforcement, and double skeleton knots that reinforcement is constituted with steel wire fibre Structure, by castable moulding by casting, non-deformability is strong, difficult for drop-off, successfully solves the big bag clad of continuous casting and uses the longevity Life is low, changes frequently difficult point, and using stabilization, sealing thermal insulation is functional, and service life is substantially improved.

Applicant has found by studying, big bag clad in the high temperature heat radiation by more than 1500 DEG C molten steel, often certain One position centralized head load, so as to cause big bag clad position to be damaged, so that need individually to be repaired to losing damage position, sometimes When impaired serious, in addition it is also necessary to change big bag clad, cause frequently repairing and change；Therefore, the big a certain portion of bag clad how is solved Part is damaged serious technical problem, is another new technical problem that the utility model finds.

The utility model solve above technical problem technical scheme be：It is in tree ring that reinforcement is set in framework bottom Shape round is distributed, and often encloses reinforcement diametric at intervals of 180-200mm, constitute each circle reinforcement each reinforcement it Between spacing be 110-150mm, and " bifurcation " font reinforcement upper end of two adjacent rings reinforcement hands over anyhow to the pawl that both sides are launched Replace.

So, by setting the round distribution shape of reinforcement, spacing often between interval, each reinforcement of circle reinforcement And reinforcement upper end replaces anyhow to the pawl that both sides are launched, warm spoke high can be made with the high temperature heat radiation of uniform pickup molten steel The heat penetrated relatively uniform in big bag clad can be distributed to everywhere, it is to avoid a certain position and in be heated, further improve Big bag clad service life, it is to avoid frequently sectional repair；

The beneficial effects of the utility model are：It is low that the utility model successfully solves the big bag clad service life of continuous casting, more Frequently difficult point is changed, " bifurcation " font reinforcement structure of reinforcement, and double skeleton knots that reinforcement is constituted with steel wire fibre is used Structure, by castable moulding by casting, non-deformability is strong, difficult for drop-off；Clad of the present utility model uses stabilization, sealing Heat-insulating property is good, and service life is substantially improved, more than 130 stoves/part lifting 3200 stoves/part, cost-effective about 6.5 ten thousand yuan/ Part, production cost is greatly reduced, while reducing big bag clad frequently changes work high above the ground risk.

Brief description of the drawings

Fig. 1 is the structural representation of the big bag clad of the utility model continuous casting.

Specific embodiment

Embodiment 1

The present embodiment is a kind of big bag clad of continuous casting, structure as shown in figure 1, the cylinder including bottom end closure, open upper end Shape framework 1, bottom is welded with " bifurcation " the font reinforcement 2 being spaced apart in framework 1, the height of reinforcement 2 less than frame height and Apart from frame roof 45-50mm；Filled with the castable 3 of mixing steel wire fibre 4 in framework, the covering of castable 3 adds Strong muscle 2, steel wire fibre 4 connects and composes double skeleton structures with reinforcement 2, and each reinforcement of inside of castable 3 is fine with steel wire Dimension and castable constitute honeycomb.Reinforcement 2 is distributed in framework bottom in tree ring shape round, often encloses reinforcement and exists It is diametric that at intervals of 180-200mm, the spacing constituted between each reinforcement of each circle reinforcement is 110-150mm, and " bifurcation " font reinforcement upper end of two adjacent rings reinforcement replaces anyhow to the pawl that both sides are launched.

The preparation method of the big bag clad of continuous casting, comprises the following steps：

(i) " bifurcation " font reinforcement is welded on bottom in framework on request；

(ii) interior in the framework for weld reinforcement, knotting vibration is cast in after castable is stirred with steel wire fibre After 10-15 minutes, standing is put 72-80 hours, is then carried out low-temperature bake and is dried 7-10 days, and the baking temperature is less than or equal to 300℃。

The big bag clad of the present embodiment is installed on the big bag turning arm top of conticaster, automatic swivelling cover bag after big bag to platform Lid, good airproof performance, high temperature resistant, using the big bag clad of 3200 stoves without deformation, without coming off, service life is big compared with original 130 stove for tracking Width rises, and achieves obvious economic benefit and safety benefit.

In addition to the implementation, the utility model can also have other embodiment.All use equivalents or equivalent change The technical scheme to be formed is changed, the protection domain of the utility model requirement is all fallen within.

Claims (2)

1. the big bag clad of a kind of continuous casting, including bottom end closure, open upper end cylindrical frame, it is characterised in that the framework Interior bottom is welded with " bifurcation " the font reinforcement being spaced apart, and the height of the reinforcement is less than described in the frame height and distance Frame roof 45-50mm；Filled with the castable of mixing steel wire fibre in the framework, the castable covers institute Reinforcement is stated, the steel wire fibre connects and composes double skeleton structures, each reinforcement of the castable inside with reinforcement Honeycomb is constituted with the steel wire fibre and castable.

2. the big bag clad of continuous casting as claimed in claim 1, it is characterised in that：The reinforcement is in trees in the framework bottom Year colyliform round distribution, often encloses reinforcement diametric at intervals of 180-200mm, constitutes each reinforcement of each circle reinforcement Spacing between muscle is 110-150mm, and " bifurcation " font reinforcement upper end of two adjacent rings reinforcement is horizontal to the pawl that both sides are launched It is perpendicular to replace.