CN104511579A - Roller belt type continuous casting machine and strip cast rolling device with same - Google Patents
Roller belt type continuous casting machine and strip cast rolling device with same Download PDFInfo
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- CN104511579A CN104511579A CN201410838239.6A CN201410838239A CN104511579A CN 104511579 A CN104511579 A CN 104511579A CN 201410838239 A CN201410838239 A CN 201410838239A CN 104511579 A CN104511579 A CN 104511579A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0608—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by caterpillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0602—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and belt, e.g. Properzi-process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0634—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and a co-operating shoe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0688—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the caterpillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention provides a roller belt type continuous casting machine and a strip cast rolling device with the same. The continuous casting machine comprises a horizontal water cooling crystallization roller, a conveying belt mechanism, a middle bag, a high-pressure water spray device and a drier, the conveying belt mechanism comprises a metal conveying belt, a cast belt conveying portion of the metal conveying belt is parallel to a roller surface of the water cooling crystallization roller, one end of the cast belt conveying portion is positioned near a horizontal axial section of the water cooling crystallization roller, the other end of the cast belt conveying portion is positioned near the bottom of the water cooling crystallization roller, a cast belt conveying area is formed between the cast belt conveying portion and the water cooling crystallization roller, the middle bag is provided with a spray nozzle and positioned above a horizontal axial section of the water cooling crystallization roller, the high-pressure water spray device is used for spraying water and cooling the cast belt conveying portion, the dryer is used for drying the metal conveying belt before the metal conveying belt enters the cast belt conveying area, and the rotating linear speed of the water cooling crystallization roller is as same as the conveying speed of the metal conveying belt when the continuous casting machine works. The continuous casting machine is solidified and cooled by the aid of double surfaces, long in cooling length, rapid in casting, stable in casting blank quality and suitable for subsequent temperature rolling.
Description
Technical field
The present invention relates to steel casting field, specifically, relate to a kind of roller belt-type conticaster and comprise the thin-belt casting rolling equipment of this conticaster.
Background technology
In the production process of all kinds of steel products, widely use conticaster by molten steel continuously direct pouring shaping.Conticaster molten steel is cast as shaping strand or strip by crystallizer.According to the type of crystallizer, conticaster roughly can be divided into roll-type, belt, roller belt-type conticaster etc.
Roll type conticaster can be divided into double-roll type conticaster and single-roll caster, and wherein, horizontal double-roller formula conticaster uses maximum a kind of conticasters in current thin strap continuous casting.Fig. 1 is sectional view, shows the structure of existing a kind of horizontal double-roller formula conticaster 100a.As shown in Figure 1, this horizontal double-roller formula conticaster 100a comprises tundish 10a, submersed nozzle 20a, two water-cooled crystallization roll 30a etc.Wherein, two water-cooled crystallization roll 30a are separated by certain gap, and rotate according to relative direction, and its both sides are provided with the side seal board 40a made of refractory material, thus form molten bath 50a.In casting process, be stored in molten steel in tundish 10a and inject molten bath 50a by submersed nozzle 20a, the molten steel in the 50a of molten bath through water-cooled crystallization roll 30a cool and by the gap between two water-cooled crystallization roll 30a after form strand 60a.Double-roll type conticaster 100a have structure simple, be easy to control, two-sidedly solidify, the advantage such as two-sided cooling, but 1/4 of the roller bottom surface girth of the cooling curtailment water-cooled crystallization roll 30a of molten steel, strand is higher from roll temperature, 1000 ~ 1300 DEG C can be reached, material is still in phase transformation, need cooling further, and the liquid steel level poor stability in the 50a of molten bath, side sealing has overlap.
Fig. 2 is stereogram, shows the structure of existing a kind of single-roll caster 100b.As shown in Figure 2, typical single-roll caster 100b comprises a water-cooled crystallization roll 30b, after molten steel sprays from mouth of a river 20b, is ejected into the upper cooling fast of water-cooled crystallization roll 30b of High Rotation Speed, finally formation strip 60b.Single-roll caster casting thickness can only be less than the very thin material of 1mm, such as amorphous alloy etc.The advantage of single-roll caster be simple and easy to control, strip width can be regulated by the mouth of a river, can prevent secondary oxidation, shortcoming is one side crystallization, one side cooling, and 1/4 of the roller bottom surface girth of cooling curtailment water-cooled crystallization roll 30b, slab quality is unstable.
Belt caster has the various ways such as vertical type twin band conticaster, horizontal twin-belt continuous casting machine, inclination twin-belt continuous casting machine.Fig. 3 is side view, show a kind of tilt the structure of twin-belt caster 100c.As shown in Figure 3, this inclination twin-belt caster 100c upper and lower conveyer mechanism 20c, 20c of comprising tundish 10c, being obliquely installed ' etc.Wherein, upper conveyor belt mechanism 20c comprises metal belt 21c, support upper metal belt 21c and drive roll 22c, the driven roll 23c of transmission and backing roll 24c etc., and lower conveyor belt mechanism 20c ' comprises lower metal belt 21c ', carry out supporting to lower metal belt 21c ' and drive roll 22c ', the driven roll 23c ' of transmission and backing roll 24c '.Upper and lower metal belt 21c, 21c ' Cast Strip transport unit 25c, 25c ' be parallel to each other and predetermined gap of being separated by.This incline type double-belt conticaster 100c also comprises for respectively to upper and lower metallic transmission band 21c, 21c ' cool cooling water nozzle 30c, 30c '.In casting process, the molten steel be stored in tundish 10c is injected into upper and lower metal belt 21c, 21c ' the gap between Cast Strip transport unit 25c, 25c ' in, form strand 50c after molten steel cools in this gap, then strand 50c sends out from this gap.Twin-belt caster can realize two-sided solidifying and two-sided cooling, but upper and lower metal belt 21c, 21c ' the more difficult control of the spacing between Cast Strip transport unit 25c, 25c ', be not suitable for the strand produced thickness and be less than 10mm.In addition, casting speed is low.
The advantage in conjunction with roll type conticaster and belt caster wished by roller belt-type conticaster.Fig. 4 is side view, shows the structure of a kind of roller belt-type conticaster of the prior art.As shown in Figure 4, this roller belt-type conticaster 100d comprises tundish 10d, horizontal transmission steel band 20d, cooling device 30d and rotating roller 40d.In casting process, be stored in the surface of the pouring molten steel in tundish 10d to the horizontal transmission steel band 20d cooled through cooling device 30d, in horizontal transmission steel band 20d surface solidification and by the smooth rear formation strand of rotating roller 40d above horizontal transmission steel band 20d.Roller belt-type conticaster 100d is actually the cooling of single tape formula one side, and rotating roller 40d only carries out smooth to casting billet surface, does not participate in the cooled and solidified process of strand.
From description above, existing various conticaster respectively has oneself pluses and minuses.
Summary of the invention
The object of the present invention is to provide a kind of Novel roller belt caster, this roller belt-type conticaster is two-sided to be solidified, two-sided cooling, and cooling length is longer, and casting speed is very fast, and the warm-rolling process that slab quality is stablized, is suitable for subsequently, thus the advantage of existing conticaster can be inherited and overcome that it is not enough.
To achieve these goals, the invention provides a kind of roller belt-type conticaster, it comprises: water-cooled crystallization roll, and this water-cooled crystallization roll is horizontally disposed with; Conveyer mechanism, this conveyer mechanism comprises metal belt, the curved surface at the transport unit place, Cast Strip of this metal belt is parallel with the roll surface of described water-cooled crystallization roll, one end of this Cast Strip transport unit is positioned near the trunnion axis cross section of described water-cooled crystallization roll, its other end is positioned near the bottom of described water-cooled crystallization roll, the predetermined gap and this Cast Strip transport unit and described water-cooled crystallization roll are separated by, and form transmission district, Cast Strip; Tundish, this tundish is provided with nozzle, and this nozzle is positioned near described water-cooled crystallization roll, and is in the top in the trunnion axis cross section of this water-cooled crystallization roll; High-pressure sprayer, this high-pressure sprayer is arranged near the transport unit of described Cast Strip, and the one side for the crystallization roll of water-cooled dorsad to this Cast Strip transport unit carries out water-spraying control; Drier, this drier is arranged near described metal belt, for carrying out drying to the metal belt entered before transmission district, described Cast Strip.Wherein, when described roller belt-type conticaster work, the rotational line speed of described water-cooled crystallization roll is identical with the transfer rate of described metal belt.
Preferably, described roller belt-type conticaster can also comprise captation, for collect described high-pressure sprayer ejection, cooled cooling water is carried out to described Cast Strip transport unit.The cooling water collected can deliver to described high-pressure sprayer again through high-pressure pump, thus forms water circulation.
Preferably, described conveyer mechanism can also comprise for supporting described metal belt and multiple rollers of transmission.Further preferably, described multiple roller can comprise drive roll, driven roll and correction jockey pulley, wherein, described drive roll is used for driving the transmission of described metal belt, described correction jockey pulley is used for carrying out tension adjustment and correction to the transmission of described metal belt, to adjust the tension force of described metal belt, and prevent this metal belt sideslip.Again further preferably, described driven roll can be arranged on described one end of the Cast Strip transport unit of described metal belt, and described drive roll can be arranged on the described other end of the Cast Strip transport unit of described metal belt.Again further preferably, angle between the plane at the axial line of described drive roll and the axial line place of described water-cooled crystallization roll and the vertical axis cross section of described water-cooled crystallization roll can be 10 ° ~ 30 °, like this, the cooling length of strand can be increased, and strand is successfully sent out from the bottom of described water-cooled crystallization roll.
Preferably, described roller belt-type conticaster can also comprise tundish pedestal, tundish described in this tundish base supports, and the height of this tundish adjustable, thus the nozzle of this tundish can be regulated to the distance in the trunnion axis cross section of described water-cooled crystallization roll.
Preferably, the nozzle of described tundish can be positioned on the sidewall of described tundish, its distance to the trunnion axis cross section of described water-cooled crystallization roll can be 0.15R ~ 0.5R, wherein, R is the radius of described water-cooled crystallization roll, to ensure on the roll surface above the trunnion axis cross section that molten steel to be sprayed onto described water-cooled crystallization roll by the nozzle of this tundish.
Preferably, the spray orifice of described nozzle can for having the deltiod slit of chamfering, and this spray orifice can extend along the direction of axis line being parallel to described water-cooled crystallization roll.
On the other hand, the present invention also provides a kind of thin-belt casting rolling equipment, and it comprises: above-mentioned roller belt-type conticaster; Leveling roll, carries out smooth for the strand exported described conticaster; Warm-rolling machine, for carrying out warm-rolling, to form strip to the strand after smooth; Cooling system, for cooling the strip formed after warm-rolling; Coiling machine, for batching cooled strip.Due to the strand moderate temperature exported from roller belt-type conticaster of the present invention, therefore directly warm-rolling can be carried out.Warm-rolling relative to cold rolling advantage is, save energy, the quality of the strip rolled out is high.
From description above with put into practice, when roller belt-type conticaster work of the present invention, being stored in molten steel in tundish is sprayed onto on the roll surface being in above trunnion axis cross section of water-cooled crystallization roll through nozzle, molten steel on roll surface start to solidify and enter along with the rotation of water-cooled crystallization roll that the Cast Strip transport unit of water-cooled crystallization roll and metal belt forms transmission district, Cast Strip in, solidifying further and forming strand after cooling then through water-cooled crystallization roll and Cast Strip transport unit, finally, strand sends out from the bottom of water-cooled crystallization roll.Therefore, this roller belt-type conticaster carries out two-sidedly solidifying to strand, two-sided cooling, and due to the form fit between water-cooled crystallization roll and the Cast Strip transport unit of metal belt, the cooling length of strand is made to exceed 1/4 of water-cooled crystallization roll bottom surface girth, thus considerably increase the cooling effect of strand, and make continuous casting billet structure evenly, grain refinement, steady quality.In addition, the casting speed of this roller belt-type conticaster is also than very fast and can cast out thinner strand (i.e. strip).Moreover the strand moderate temperature cast out, directly can carry out warm-rolling, thus can save energy, and improves the quality of the strip rolled out further.
Accompanying drawing explanation
Fig. 1 is sectional view, shows the schematic construction of existing a kind of horizontal double-roller formula conticaster;
Fig. 2 is stereogram, shows the schematic construction of existing a kind of single-roll caster;
Fig. 3 is side view, show existing a kind of tilt the schematic construction of twin-belt caster;
Fig. 4 is side view, shows the schematic construction of existing a kind of roller belt-type conticaster;
Fig. 5 is side view, shows the structure of the roller belt-type conticaster described in one embodiment of the present of invention;
Fig. 6 is side view, shows the structure of the thin-belt casting rolling equipment described in one embodiment of the present of invention.
Detailed description of the invention
Describe roller belt-type conticaster of the present invention below with reference to the accompanying drawings and comprise the embodiment of thin-belt casting rolling equipment of this conticaster.Those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.In addition, in this manual, accompanying drawing draws not in scale, and identical Reference numeral represents identical part.
Fig. 5 is side view, shows the structure of the roller belt-type conticaster described in one embodiment of the present of invention.As shown in Figure 5, the roller belt-type conticaster 100 described in one embodiment of the present of invention mainly comprises water-cooled crystallization roll 10, conveyer mechanism 20, tundish 30, high-pressure sprayer 40 and drier 50.
Water-cooled crystallization roll 10 is horizontally disposed with.Water-cooled crystallization roll 10 can adopt conventional inner-cooled crystallization roll, and its diameter can be 300mm ~ 3000mm, but the present invention is not limited thereto.
Conveyer mechanism 20 comprises metal belt 21, and metal belt 21 comprises Cast Strip transport unit 211, one end of Cast Strip transport unit 211 is positioned near the trunnion axis cross section of water-cooled crystallization roll 10, its other end is positioned near the bottom of water-cooled crystallization roll 10, the curved surface at Cast Strip transport unit 211 place is parallel with the roll surface of water-cooled crystallization roll 10, and to be separated by predetermined gap with water-cooled crystallization roll 10, thus between Cast Strip transport unit 211 and water-cooled crystallization roll 10, form transmission district, Cast Strip 22, for solidifying Cast Strip and cooling, and Cast Strip is sent out.
Conveyer mechanism 20 also comprises for supporting metal belt 21 and multiple rollers of transmission.More particularly, this multiple roller can comprise drive roll 23, driven roll 24 and correction jockey pulley 25, wherein, drive roll 23 is for driving the transmission of metal belt 21, correction jockey pulley 25 is for carrying out tension adjustment and correction to the transmission of metal belt 21, to adjust the tension force of metal belt 21, and prevent this metal belt 21 sideslip.The diameter of drive roll 23 and driven roll 24 can be 60mm ~ 600mm, and the diameter of jockey pulley of rectifying a deviation can be 300mm ~ 3000mm.
In addition, driven roll 24 can be arranged on the one end in the trunnion axis cross section of the close water-cooled crystallization roll 10 of the Cast Strip transport unit 211 of metal belt 21.Drive roll 23 can be arranged on the other end of the bottom of the close water-cooled crystallization roll 10 of the Cast Strip transport unit 211 of metal belt 21, further again, angle α between the plane at the axial line of drive roll 23 and the axial line place of water-cooled crystallization roll 10 and the vertical axis cross section of water-cooled crystallization roll 10 can be 10 ° ~ 30 °, like this, the cooling length of strand 60 can be increased, and strand 60 is successfully sent out from the bottom of water-cooled crystallization roll 10.
Tundish 30 is provided with nozzle 31, preferably, is located at by nozzle 31 on the sidewall of tundish 30.The spray orifice of nozzle 31 for having the deltiod slit of chamfering, can mate with the roller of water-cooled crystallization roll 10 is long.Nozzle 31 (being the spray orifice of nozzle 31 specifically) is positioned near water-cooled crystallization roll 10, and is in the top in the trunnion axis cross section of water-cooled crystallization roll 10.Specifically, nozzle 31 can be 0.15R ~ 0.5R to the distance in the trunnion axis cross section of water-cooled crystallization roll 10, and wherein, R is the radius of water-cooled crystallization roll 10.That is, in Figure 5, the plane at the spray orifice slit of nozzle 31 and the axial line place of water-cooled crystallization roll 10 and the trunnion axis cross section angulation β of water-cooled crystallization roll 10 can be about 10 ° ~ 30 °.
High-pressure sprayer 40 is arranged near Cast Strip transport unit 211, and the one side for the crystallization roll of water-cooled dorsad 10 to Cast Strip transport unit 211 carries out water-spraying control.High-pressure sprayer 40 is supplied water by high-pressure pump (not shown), can by the back side of the high-pressure water shot of such as 20 ~ 100MPa to the Cast Strip transport unit 211 of metal belt 21, thus pressure cooling is carried out to it, meanwhile, also can make Cast Strip transport unit 211 and solidify molten steel (i.e. strand) and contact closely.
Drier 50 is arranged near metal belt 21, for carrying out drying to the metal belt 21 entered before transmission district, Cast Strip 22, producing explode to prevent water or steam from contacting with molten steel.
When roller belt-type conticaster 100 works, the rotational line speed of water-cooled crystallization roll 10 is identical with the transfer rate of metal belt 21.The rotational line speed of water-cooled crystallization roll 10 can be 10 ~ 200m/min, and therefore, the casting speed of roller belt-type conticaster 100 is than very fast.In addition, the thickness of the strand that roller belt-type conticaster 100 casts out can be 0.5mm ~ 4.5mm, and temperature can at 200 DEG C ~ 1000 DEG C, therefore, thinner strand (i.e. strip) can be cast out, and the strand moderate temperature cast out, directly can carry out warm-rolling.
Above composition graphs 5 describes specific embodiments of the invention, but the present invention is not limited thereto.Roller belt-type conticaster 100 can also comprise captation 70, for collect high-pressure sprayer 40 spray, cooled cooling water is carried out to Cast Strip transport unit 211.The cooling water collected can deliver to high-pressure sprayer 40 again through high-pressure pump, thus forms water circulation.
In addition, roller belt-type conticaster 100 can also comprise tundish pedestal 80, this tundish pedestal 80 supports tundish 30, and can regulate the height of tundish 30 by such as hydraulic transmission 81, thus can regulate the distance of nozzle 31 to the trunnion axis cross section of water-cooled crystallization roll 10 of tundish 30.
When roller belt-type conticaster 100 of the present invention works, being stored in molten steel in tundish 30 is sprayed onto on the roll surface being in above trunnion axis cross section of water-cooled crystallization roll 10 through nozzle 31, molten steel on roll surface start to solidify and enter along with the rotation of water-cooled crystallization roll 10 that water-cooled crystallization roll 10 and the Cast Strip transport unit 211 of metal belt 21 form transmission district, Cast Strip 22 in, solidifying further and forming strand 60 after cooling then through water-cooled crystallization roll 10 and Cast Strip transport unit 211, finally, strand 60 sends out from the bottom of water-cooled crystallization roll 10.Therefore, this roller belt-type conticaster 100 pairs of strands 60 carry out two-sidedly solidifying, two-sided cooling, and due to the form fit between water-cooled crystallization roll 10 and the Cast Strip transport unit 211 of metal belt 21, the cooling length of strand 60 is made to exceed 1/4 of water-cooled crystallization roll 10 bottom surface girth, thus considerably increase the cooling effect of strand 60, and make strand 60 even tissue, grain refinement, steady quality.In addition, the casting speed of roller belt-type conticaster 100 is also than very fast and can cast out thinner strand (i.e. strip).Moreover the strand moderate temperature cast out, directly can carry out warm-rolling, thus can save energy, and improves the quality of the strip rolled out further.
The thin-belt casting rolling equipment utilizing roller belt-type conticaster 100 to form is described below in conjunction with Fig. 6.
Fig. 6 is side view, shows the structure of the thin-belt casting rolling equipment described in one embodiment of the present of invention.As shown in Figure 6, the thin-belt casting rolling equipment described in one embodiment of the present of invention mainly comprises: roller belt-type conticaster 100, leveling roll 200, warm-rolling machine 300, cooling system 400, coiling machine 500.
Roller belt-type conticaster 100 exports strand or strip, and the temperature of this strand or strip is at 200 DEG C ~ about 1000 DEG C.Then, this strand is by leveling roll 200, and carry out smooth by leveling roll 200 to this strand, smooth amount is about 1% ~ 15% of slab thickness.Then, the strand after smooth is by warm-rolling machine 300, and carry out warm-rolling by warm-rolling machine 300 to it, to form strip, the reduction ratio of rolling is 10% ~ 80%, and the strip thickness after rolling is about 0.15mm ~ 1.5mm.Warm-rolling, relative to cold rolling, can save energy, and the better quality of the strip rolled out.The strip formed after warm-rolling, by cooling system 400, is cooled it by cooling system 400, reaches expection requirement to make the structure and properties of strip.Finally, cooled strip is admitted to coiling machine 500, is batched by coiling machine 500.
In addition, can also arrange crop shears 150 between roller belt-type conticaster 100 and leveling roll 200, the irregular strand formed during for starting casting process excises.Can arrange flying shear 440 and pinch roll 460 between cooling system 400 and coiling machine 500, wherein, pinch roll 460 is for ensureing stable the batching of coiling machine 500 pairs of strips, and strip cuts off by flying shear 440 after being rolled up at coiling machine 500.
In addition, warm-rolling machine 300 can comprise the first warm-rolling machine 301 and the second warm-rolling machine 302, thus warm-rolling process is carried out in two steps, and effect of rolling can be made so better.
It will be appreciated by those skilled in the art that the roller belt-type conticaster that the invention described above is proposed and the thin-belt casting rolling equipment comprising this conticaster, various improvement and combination can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (10)
1. a roller belt-type conticaster, is characterized in that, comprising:
Water-cooled crystallization roll, this water-cooled crystallization roll is horizontally disposed with;
Conveyer mechanism, this conveyer mechanism comprises metal belt, the curved surface at the transport unit place, Cast Strip of this metal belt is parallel with the roll surface of described water-cooled crystallization roll, one end of this Cast Strip transport unit is positioned near the trunnion axis cross section of described water-cooled crystallization roll, its other end is positioned near the bottom of described water-cooled crystallization roll, the predetermined gap and this Cast Strip transport unit and described water-cooled crystallization roll are separated by, and form transmission district, Cast Strip;
Tundish, this tundish is provided with nozzle, and this nozzle is positioned near described water-cooled crystallization roll, and is in the top in the trunnion axis cross section of this water-cooled crystallization roll;
High-pressure sprayer, this high-pressure sprayer is arranged near the transport unit of described Cast Strip, and the one side for the crystallization roll of water-cooled dorsad to this Cast Strip transport unit carries out water-spraying control;
Drier, this drier is arranged near described metal belt, for carrying out drying to the metal belt entered before transmission district, described Cast Strip;
Wherein, when described roller belt-type conticaster work, the rotational line speed of described water-cooled crystallization roll is identical with the transfer rate of described metal belt.
2. roller belt-type conticaster as claimed in claim 1, is characterized in that, also comprise captation, for collect the ejection of described high-pressure sprayer, cooled cooling water is carried out to described Cast Strip transport unit.
3. roller belt-type conticaster as claimed in claim 1, is characterized in that, described conveyer mechanism also comprises for supporting described metal belt and multiple rollers of transmission.
4. roller belt-type conticaster as claimed in claim 3, it is characterized in that, described multiple roller comprises drive roll, driven roll and correction jockey pulley, wherein, described drive roll is used for driving the transmission of described metal belt, and described correction jockey pulley is used for carrying out tension adjustment and correction to the transmission of described metal belt.
5. roller belt-type conticaster as claimed in claim 4, it is characterized in that, described driven roll is arranged on described one end of the Cast Strip transport unit of described metal belt, and described drive roll is arranged on the described other end of the Cast Strip transport unit of described metal belt.
6. roller belt-type conticaster as claimed in claim 5, it is characterized in that, the angle between the plane at the axial line of described drive roll and the axial line place of described water-cooled crystallization roll and the vertical axis cross section of described water-cooled crystallization roll is 10 ° ~ 30 °.
7. roller belt-type conticaster as claimed in claim 1, is characterized in that, also comprise tundish pedestal, tundish described in this tundish base supports, and the height of this tundish adjustable.
8. roller belt-type conticaster as claimed in claim 1, it is characterized in that, the nozzle of described tundish is positioned on the sidewall of described tundish, and its distance to the trunnion axis cross section of described water-cooled crystallization roll is 0.15R ~ 0.5R, wherein, R is the radius of described water-cooled crystallization roll.
9. roller belt-type conticaster as claimed in claim 1, it is characterized in that, the spray orifice of described nozzle is the deltiod slit with chamfering.
10. a thin-belt casting rolling equipment, is characterized in that, comprising:
Roller belt-type conticaster according to claim 1;
Leveling roll, carries out smooth for the strand exported described conticaster;
Warm-rolling machine, for carrying out warm-rolling, to form strip to the strand after smooth;
Cooling system, for cooling the strip formed after warm-rolling;
Coiling machine, for batching cooled strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838239.6A CN104511579A (en) | 2014-12-29 | 2014-12-29 | Roller belt type continuous casting machine and strip cast rolling device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838239.6A CN104511579A (en) | 2014-12-29 | 2014-12-29 | Roller belt type continuous casting machine and strip cast rolling device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104511579A true CN104511579A (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410838239.6A Pending CN104511579A (en) | 2014-12-29 | 2014-12-29 | Roller belt type continuous casting machine and strip cast rolling device with same |
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| Country | Link |
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| CN (1) | CN104511579A (en) |
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| CN108705057A (en) * | 2018-06-07 | 2018-10-26 | 上海大学 | A kind of roller belt-type thin-belt casting rolling all-in-one machine and its application method |
| CN112170489A (en) * | 2020-09-30 | 2021-01-05 | 河南鑫昊晟达实业有限公司 | Three-roller ultrathin belt production system |
| CN113333697A (en) * | 2021-05-20 | 2021-09-03 | 北京科技大学 | Three-roller thin belt continuous casting machine with stripping roller |
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| CN113333697B (en) * | 2021-05-20 | 2022-03-04 | 北京科技大学 | Three-roller thin belt continuous casting machine with stripping roller |
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Application publication date: 20150415 |