CN2163704Y - Liquid-core steel ingot stripper parallel for steel-smelting - Google Patents

Abstract

The utility model relates to a liquid-core steel ingot stripping parallel for steel smelting and ingot casting. The utility model is an auxiliary device of stripping devices. The utility model is cast or is forged to a hexahedron dovetailed with the port of a steel ingot mould. Both of the upper plane and the lower plane are provided with a concave part, the lateral directions are provided with concave pits dovetailed with the handling vice jaw and vice tip to provide the use function of a bridge type stripping device with a clamping vice type top rod and to add the stripping function to strip the liquid-core steel ingots with small upper parts andbig lower parts. The utility model has the advantages that the stripping time is shortened, the back production capacity of the steel-making furnaces is improved by 30%, the mould consumption and energy consumption are reduced, the energy consumption of soaking the ton steel before cogged bloom is reduced by 25% to 63%, and the mould consumption is reduced by 0.5 kg/t. The utility model brings obvious economic effect to metallurgical works.

Description

Liquid-core steel ingot stripper parallel for steel-smelting

Being used to make steel the demoulding parallels of liquid core steel ingot, particularly carrying out demoulding parallels when forcing the demoulding at the up-small and down-big steel ingot that binds that do not solidify fully as yet, is the servicing unit of ingot stripper in the metallurgical works steel-making stripping process.

So far, the steel-making mould is annotated and also occupy bigger ratio in metallurgical industry, and mostly the demoulding of generally making steel is to be transported to demoulding workshop after the steel ingot condensation, uses ingot stripper to carry out the free demoulding or force the demoulding.It is a lot of that research adapts to working condition ingot stripper kind; Chinese patent application numbers 89100678.8 and 89201515.2 is respectively at disclosing a kind of " dynamic formula stripper mechanism " in May nineteen ninety and September; the demoulding of application number 89203074 steel ingot after on December 20th, 1989, to disclose a kind of " steel-making ingot casting the demoulding unit " all be to be used for condensation; or the free demoulding of dependence steel ingot deadweight inertia force; lack the demoulding functions that is suitable for liquid core steel ingot; particularly, powerless to the up-small and down-big liquid core steel ingot demoulding.

Smelter energy consumption height along with the development of metallurgical industry, is often made steel behind the ingot casting, wishes to deliver to when molten steel does not solidify as yet fully the rough rolling mill, carries out steel ingot liquid core heating rolling, like this can energy savings during soaking before the breaking down cogging.But it causes difficulty for the stripping process behind the steel-making ingot casting.Particularly up-small and down-big so-called Jc killed ingot; because the condensation shrinkage factor is low; the high easily mucous membrane of temperature; the free demoulding of the steel ingot deadweight demoulding was lost efficacy; existing ingot stripper invar ingot does not solidify as yet fully; when implementation forces the demoulding; the ingot stripper push rod is also powerless; the covering slag and the heat preserving agent of steel ingot top rising head have not only been destroyed reluctantly; and will damage steel ingot top solidification layer and insert in the steel ingot liquid core; cause danger or major accident, this is to make steel ingot casting ingot stripper an open question still at present.

The purpose of this utility model; be to solve the release problems of forcing of the still unsolved liquid core of the ingot stripper steel ingot of making steel so far behind the ingot casting; for the existing bridge-type ingot stripper that possesses push rod and clamp-type provides servicing unit; increase demoulding functions; make its liquid core steel ingot that ot-yet-hardened is bound by means of the utility model, the particularly up-small and down-big so-called Jc killed ingot demoulding smoothly, can make the new energy-saving process of steel-making, breaking down cogging realization steel ingot liquid core demoulding heating rolling.

The utility model can take following measure to realize: with the demoulding parallels of the steel-making liquid core steel ingot of cast steel or high-strength iron casting or forging, make the hexahedron that is similar to rectangular cross section, section configuration and ingot mould upper surface internal orifice match, and leave the 5～10mm gap that is enough to conveniently put into, its thickness be slightly less than this rectangular cross section width 3～5%.

The utility model can also take following measure to realize: the hexahedral demoulding parallels of made approximate rectangular section; the centre of its upper plane and lower flat respectively is a recess; the recess area is 80～85% of this plane; shape is and the concentric similar rectangle of this section; the degree of depth is 10% of a thickness, and the side direction of this parallels has the pit of being convenient to pick and place that the pincers point with the lower end of the little caliper of ingot stripper matches and the recess of weight reduction.

The utility model provides the servicing unit of steel-making ingot casting ingot stripper; after vising the side pit of this demoulding parallels by known bridge-type ingot stripper Small clamp jaw; sling and put into the top rising head of desiring demoulding ingot mould; during the big clip pull-up of ingot stripper ingot mould; the center push rod will withstand this demoulding parallels upper recess center; owing to hold unnecessary covering slag and heat preserving agent in the recess below this demoulding parallels; there is width 40～60mm baseplane to contact and realizes the demoulding with the solidification layer of steel ingot periphery; prevent to destroy the steel ingot rising head; covering slag and heat-insulation layer; the even condensation-crystallization of protection steel ingot exempts from the damage that the demoulding causes.

The utility model has solved the releasing process of the calm molten steel core of the still unsolved up-small and down-big Jc of existing ingot stripper steel ingot; increased the function of ingot stripper; and improved stripping rate; shorten 50% than normal demould time; foreshortened to 60～70 minutes in 120～170 minutes by former demould time; production capacity 30% behind the raising converter; increase blooming soaking pit furnace production capacity 15～20%; have up to 60%; reduce soaking energy consumption 25～63%; because the demoulding is smooth, make STEELMAKING PRODUCTION ton punching block consumption reduce 0.5kg/t again, can be metallurgical works and create distinct economic.

Below in conjunction with accompanying drawing the utility model is further commented.

Fig. 1 is a front view of the present utility model.

Fig. 2 is that Fig. 1 is along the A-A cutaway view.

Fig. 3 is an embodiment schematic diagram of the present utility model.

Fig. 1 is the front view of the demoulding parallels of the utility model steel-making liquid core steel ingot.Demoulding parallels 1 is made by cast steel or high-strength cast iron, also can be by the forging of light section steel ingot, and side direction has the pit 2 that hangs for ingot stripper Small clamp jaw folder, and its shape and jaw clamp pointed shape and match, and side direction has the recess 3 of weight reduction in addition.

Among Fig. 2, Fig. 3, upper recess 5 is the stressed places that contact with ingot stripper push rod 10, and lower recess 4 can be held the rising head place covering slag and the heat preserving agent at steel ingot top, and lower flat contacts with steel ingot top perimeter solidification layer.

Press the embodiment of Fig. 3; demoulding parallels 1 is after being clamped by ingot stripper Small clamp jaw pincers point 6; put into the steel ingot die orifice that the heat-insulating shield 8 of the port at ingot mould 7 tops that poured constitutes; be pressed on heat preserving agent and the protection slag blanket 9; when descending, ingot stripper push rod 10 walks to the upper recess center of this demoulding parallels 1; the big clip claw beam 11 pull-up ingot moulds of ingot stripper; center push rod 10 contacts with periphery that steel ingot has solidified by demoulding parallels 1 lower flat and carries out the demoulding; prevent that steel ingot core molten steel 12 from contacting with the push rod 10 of ingot stripper; the demoulding is carried out under liquid core state smoothly; the molten steel solidification all-the-time stable; can realize the demoulding of steel ingot liquid core; realize liquid core heating rolling, obtain energy efficient and reduce the effect that mould consumes.Be that the steel mill of taking off 5,850,000 tons on ingot a year creates surplus the economic benefit 5,700 ten thousand yuan.

Claims (2)

1, a kind of demoulding parallels that is used to make steel liquid core steel ingot, cast or forge the hexahedron that becomes to be similar to rectangle, it is characterized in that shape and ingot mould port match, and leave the 5～10mm gap that is enough to conveniently put into, its thickness is less than 3～5% of this rectangular cross section width.

2, demoulding parallels according to claim 1; each is a recess in the centre to it is characterized in that upper plane and lower flat; area is 80～85% of this plane; shape is and the concentric similar rectangle of this section; the degree of depth is 10% of this parallels thickness, and its side direction has the pit that the pincers point with the little jaw of ingot stripper matches and the recess of weight reduction.

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