CN106180191B - A kind of wire and rod continuous casting billet exempts from heating and directly rolls system and method - Google Patents
A kind of wire and rod continuous casting billet exempts from heating and directly rolls system and method Download PDFInfo
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- CN106180191B CN106180191B CN201610783622.5A CN201610783622A CN106180191B CN 106180191 B CN106180191 B CN 106180191B CN 201610783622 A CN201610783622 A CN 201610783622A CN 106180191 B CN106180191 B CN 106180191B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
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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
-
- 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
- B22D11/1246—Nozzles; Spray heads
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A kind of wire and rod continuous casting billet of present invention offer exempts from heating and directly rolls system and method, including the conticaster, the fast hydraulic pressure that are closely arranged successively are cut, cut rear roller-way, strand stream convergence roller-way, transport hot sending roller-way and wire and bar mill；The strand stream convergence roller-way converges to the strand in every one stream on transport hot sending roller-way, and described cut is provided with the gate mechanism for entering and letting pass for stopping strand between rear roller-way and strand stream convergence roller-way.Conticaster high efficiency continuous casting of the present invention, strand pull out temperature height, and shape is regular, and temperature loss is small, and strand cuts quick, strand initial temperature height.By gate mechanism, the strand of cutting orderly enters high speed strand stream and converges roller-way successively, easy to operate, easily tissue production.Strand is high to inlet of rolling mill temperature, can exempt to heat Direct Rolling, is damaged to milling train small.
Description
Technical field
The invention belongs to metal continuous cast and rolling technical fields, and in particular to a kind of wire and rod continuous casting billet exempt from heating and directly roll be
System and method.
Background technology
The production technology of wire and rod is mostly at present：Molten steel is after continuous cast mold and the solidification of secondary cooling zone postcooling by withdrawal straightening machine
Aligning pulls out strand, and strand is sent to ejection area after flame Length-fixing cutting by roller-way after cutting and rollgang.It needs to be heat-fed
Strand send to hot sending roller-way through tilting gear, machine for moving steel, steel splitting machine and is directly sent to steel rolling into heating furnace；Need offline strand through turning over
Steel machine, machine for moving steel, steel splitting machine send to double steel cold bed and are cooled down, and then casting blank collecting rack collects the offline stockpiling of crane.Hot sending
To heater for rolling steel the general temperature of strand in the range of 500-600 DEG C, the strand of this temperature is directly to be rolled
System, needing heating furnace to be heated to 1040-1140 DEG C could roll.Offline strand, which can generally be stored up, to be naturally cooled to often
Temperature, then rolled after giving to the heated stove heat of steel rolling.The defect of this production procedure is：High temperature strand is due to subsequent handling length
Cooling, reheating causes a large amount of energy consumption, even hot-loading and hot-conveying, it is still desirable to heat, equally also consume a large amount of
The energy；The construction investment of heater for rolling steel, daily maintenance, material consumption etc. will also expend huge economic input and be produced into
This, and increase carbon emission.
In order to avoid the generation of above-mentioned phenomenon, it is a kind of very safe using direct sending Direct Rolling Technology and flexibly arranges
It applies.The core of direct sending Direct Rolling Technology is：Strand is without heating furnace Direct Rolling, and steel rolling start rolling temperature is in pair rolling and low
Between warm-rolling system, finishing temperature and pair rolling temperature difference are little, fast transportation, promote strand to the temperature of milling train, shorten
Conticaster ensures the start rolling temperature of milling train in reasonable interval to the time of milling train.
It is sent at a high speed to milling train after continuous casting billet cut-out, strand is not heat-treated, and surface temperature is than pair rolling open rolling temperature
Spend low, but strand central temperature specific surface temperature is much higher, easily deformable deep and thorough, while also helping strand internal flaw
Pressing and elimination, rough rolling step internal high temperature area generate samming effect, surface temperature are made to increase to external diffusion, promote internal matter
The improvement of amount.
Application No. is the Chinese patent of 201020160403.X disclose a kind of proximate matter, bar endless rolling flexible connecting
Device provides the flexible connecting device of three kinds of forms according to patent：One is be made of soft pressure roller system；It is a kind of
It is to have big pressure milling train to constitute；One is there is above-mentioned soft pressure roller system to be collectively formed with big pressure milling train, select in three kinds of forms
One kind be mounted between crystallizer and conventional rolling mill group.The patent is provided with screwdown device between conticaster and milling train, gradually
The cross dimensions of second compression strand with increase strand to steel rolling speed, to realize seamless connection and the flexibility of continuous casting and steel rolling
Linking shortens flow and production line length.Due to the process for not having strand to cut off in the technology, Dan Liusheng can only be generally realized
Production.For wire and rod production, single production line output that flows is too low, when such as being produced according to multithread, will correspond to and match per one stream
Corresponding milling train group can cause to invest excessive, the problems such as produced on-site organization and administration are inconvenient.
It discloses application No. is 201010185485.8 Chinese patent and a kind of producing proximate matter bar using residual heat of molten steel
Continuous-casting continuous-rolling method provides a kind of technological process according to patent, from smelting molten steel, temperature control continuous casting, and rectification tandem rolling,
Continuous shear stress batches, cooling, the big packet of finishing to storage.The invention overcomes waste of energy existing for prior art, repeatedly cuts
Head, whole reheatings and every section lead to the problem of a short ruler, have saved the energy, have reduced loss.But the technology is to single stream
Or continuous casting of two strands in parallel machine is more suitable, for multiple-strand caster, the amount of milling train unit will be very huge, and it is not easy to operate and
Production management tissue.
Application No. is 201310475792.3 Chinese patent applications to disclose a kind of side of Direct Rolling production long profiles
Method, according to patent, this method includes conticaster, and ejection roller way keeps the temperature bridging table, and induction heating apparatus and milling train etc. are set
It is standby.Although the invention improves the mode for carrying out heating stove heat in original long profiles production process to continuous casting material, but use
The problems such as sensing heating still has equipment investment height, and production consumption electric energy is big, burning, oxidization burning loss.
Application No. is 201220380196.8 Chinese patents to disclose a kind of continuous casting and rolling device producing long material, according to
Described in patent, which includes conticaster, is closely connected with roller hearth type heating furnace after cutting machine in turn, and traverse displacement unit and energy are real
The milling train of existing zerolling.Although traditional heating stove is changed to roller hearth type heating furnace by the patent of invention, it can only be to strand
Lower surface is heated, and strand non-uniform temperature is easily caused, therefore also needs to build supplementary heating stove, is increased process, is increased
Big equipment investment and energy consumption.
Application No. is 201320582646.6 Chinese patent disclose it is a kind of without heating low temperature Direct Rolling small billet life
The device of reinforcing bar is produced, according to patent, conticaster is multiple-strand caster, and ejection roller way is arranged per outflux, ejection roller way
End is equipped with the deployment device that can laterally allocate blank, is rolled equipped with several in the traversing rack side opposite with ejection roller way
Line, ejection roller way and rollgang are equipped with insulation cover.Although the patent eliminates heating furnace, but the device is more using continuous casting billet
Row is parallel, and the mode into hot sending roller-way is singly streamed after by lateral deployment device steel splitting, can cause entry into the continuous casting of hot sending roller-way
Base stand-by period process and cool down, and due to needing traversing steel splitting, also increase the cooling time of continuous casting billet.Substantially come
It says, the device and the not essential difference of currently used hot delivery and hot charging technology, continuous casting billet temperature drop is excessive, cannot be satisfied milling train and rolls
The requirement of system.
Application No. is 201420728124.7 Chinese patents to disclose a kind of company for producing Bar Wire Product and proximate matter
Casting-Direct Rolling device provides a kind of continuous casting and direct rolling device, including conticaster, strand cutting according to patent
Device and rear roller-way is cut, quick insulating roller way and steel rolling production-line.The roller-way width of quick insulating roller way is from conticaster to steel rolling
It is gradually reduced on the direction of production line to the single strand of receiving and is passed through, which is equipped with multiple cold/hot metal detectors and high temperature
Meter, attemperator are set to before quick insulating roller way or before steel rolling production-line.Although the patent uses stepped ejection side
Formula also eliminates traditional heating furnace, also uses multithread and the linking roller-way that singly flows and uses Insulation, but not right
Conticaster pulling rate itself and secondary cooling scheme are improved, while also not being cut off or being cut the time to strand and claiming, because of casting
The place of base cut-out is only strand and exempts to heat the initial temperature of Direct Rolling, if strand initial temperature is not high, that is just talked not
On exempt from heating directly roll (open rolling casting blank surface temperature>850℃).In addition, leaning on the premise of ladder ejection mode to be continuous casting must stablize
Direct motion, and centre can only control the submitting successively of strand by control pulling rate, and such operation difficulty is very big, is not easy to existing
Field production.
Invention content
In view of the above deficiencies of the prior art, the purpose of the present invention is to provide a kind of wire and rod continuous casting billets to exempt to heat
System directly is rolled, farthest improves temperature when strand cut-out, shortens time of the strand from continuous casting to steel rolling, strand is reduced and exists
Temperature loss in transmission process.
In order to achieve the above objects and other related objects, technical solution of the present invention is as follows：
A kind of wire and rod continuous casting billet exempts from heating and directly rolls system, including the conticaster, the fast hydraulic pressure that are closely arranged successively are cut, cut
Roller-way, strand stream convergence roller-way, transport hot sending roller-way and wire and bar mill afterwards；The strand stream convergence roller-way will be in every one stream
Strand converges on transport hot sending roller-way.
Using the above structure, conticaster uses minor radius high casting speed continuous casting machine, has radius small, metallurgical length is short, Gao La
The feature of speed, usual radius are less than 9m；Fast hydraulic pressure is closely arranged in minor radius high casting speed continuous casting machine downstream to cut, contracts to greatest extent
At a distance from small withdrawal straightening machine and fast hydraulic pressure are cut, temperature when strand is cut is improved；Fast hydraulic pressure cuts on-line synchronous and cuts continuous casting
Base, efficient and convenient, cutting speed is fast, cuts success rate height, and equipment failure rate is low, cuts the regular strand that do not influence of notch and rolls,
Conventional gas flame cuttiug needs one or two minutes, and fast hydraulic pressure is cut and only needs several seconds, and shear time is shortened, and subtracts
Temperature drop is lacked.Strand roller-way region after cutting is also that multithread strand comes together, and converges to strand stream convergence roller-way simultaneously, can
So that strand cooling is slow, temperature loss is reduced, ensures temperature when follow-up rolling.
Further, the strand stream convergence roller-way is in the narrow horn-like shape in the wide downstream in upstream.It can be by the strand in every one stream
High speed converges on transport hot sending roller-way, and strand high speed converges, non-slip, not card resistance.
Further, it is described cut rear roller-way and strand stream convergence roller-way between be provided with for stop strand enter and let pass
Gate mechanism.
Further, it can stop that strand enters strand stream convergence roller-way, the strand flowed where letting pass when falling when gate rises
Roller-way is converged into strand stream, plays the role of strand and transport orderly to adjust successively.
Further, the gate mechanism is the adjustable end stop driven using hydraulic pressure or air pressure.
Further, the conticaster radius is 6m-9m.
Further, the conticaster pulling rate is more than 3.5m/min；It is described cut rear roller-way, transport hot sending roller-way be frequency conversion or non-
Frequency conversion roller-way.
Further, it is provided with cooling sprayer on high casting speed continuous casting machine, including spraying mechanism and as fixing bracket
Water inlet supervisor, it is described water inlet supervisor be located at casting stream inner arc side, the spraying mechanism be mounted on water inlet supervisor on, and with water inlet
Supervisor's connection；The water inlet supervisor is divided into multiple segmentations along casting stream arc direction, and step-by-step arrangement is conveniently replaceable maintenance；It is each described
Segmentation upper and lower ends are both provided with water inlet.Each is segmented into a spraying zone, and each area is led to simultaneously using upper and lower water inlet
The mode of water avoids cooling water from being unevenly distributed up and down.
Using the above structure, conticaster occurs small to holder damage when the accidents such as bleed-out, does not influence conticaster reorganization
Production, easy for assemble or unload, fixing bracket is also water inlet supervisor simultaneously, carries water-cooled effect, is unlikely to deform.
Further, the spraying mechanism is nozzle ring group, and plane is vertical with casting stream where the nozzle ring group, and casting flow by
It is passed through among nozzle ring group, which is connected by connecting tube and water inlet supervisor, and multiple nozzles are equipped in nozzle ring group.
Further, the nozzle ring group is in eight-sided formation, including the alternately 4 root long pipes and 4 short tubes of connection, close to interior
The long tube of arc side is mounted on by connecting tube and water inlet supervisor's connection, the nozzle on short tube.
Further, the angle of the short tube and long tube is 120 °.
Further, the nozzle ring group is in constitute eight-sided formation by 8 isometric jet pipes, and the nozzle pitch is mounted on
On jet pipe, the jet pipe passes through connecting tube and water inlet supervisor's connection.
Further, the nozzle is threadedly coupled with nozzle ring group, the connecting tube and water inlet supervisor and nozzle ring group grafting.
Simple in structure, nozzle ring group is easily installed and dismantles, component globality, and integration degree is high, realizes nozzle
Quick-replaceable.
Further, the aperture of the nozzle is more than or equal to 2mm.It is wide to be applicable in water quality range, is not easy to plug, nozzle atomization effect
Good, jet velocity is fast.
Present invention simultaneously provides a kind of wire and rod continuous casting billets to exempt to heat straight rolling method, using a kind of above-mentioned wire and rod continuous casting
Base exempts from heating and directly rolls system, and the strand that conticaster is produced is sent by roller-way after cutting to strand stream after rapid hydraulic cutting is cut to converge
Poly- roller-way, strand stream convergence roller-way and cuts gate mechanism is arranged between rear roller-way, and the sequencing reached according to strand is put
Row, strand converge to transport hot sending roller-way through strand stream convergence roller-way high speed, and by strand list stream fast by transport hot sending roller-way
Speed is transported to milling train and carries out exempting from heating rolling.
Further, the conticaster radius is 6m-9m；Pulling rate is more than 3.5m/min；Pass through conticaster secondary cooling system
Temperature is more than 980 DEG C before controlling strand cutting, and the high temperature strand after shearing send to steel rolling and rolled by high speed convergence and conveying
Cheng Zhong, temperature loss control within the scope of less than 50 DEG C.Shorten time of delivery by high pulling rate and high speed roller-way, reduces temperature drop；
Strand conveys for more in groups after ejection roller way, can also reduce temperature loss, ensures rolling quality.
High casting speed continuous casting machine is equipped with high pulling rate crystallizer, and pulling rate is more than 3.5m/min, is equipped with high efficient secondary cooling system, protects
Temperature is more than 980 DEG C before demonstrate,proving strand cutting, strand neat appearance, excellent surface quality.High pulling rate crystallizer has lower resistance chamber
Type structure, efficient cooling water seam, copper pipe uniqueness corner structure is to ensure uniform cooling in crystallizer of strand and go out crystallizer
Casting blank shell thickness.High efficient secondary cooling system has optimization design secondary cooling zone and arrangement of nozzles, high efficient secondary cooling water water distribution
System, temperature when ensureing that the uniform cooling of strand and strand go out two cold closed chamber.Withdrawal straightening machine and quick liquid are reduced to greatest extent
The distance of compression shear improves temperature when strand is cut.
As described above, the beneficial effects of the invention are as follows：
Minor radius high casting speed continuous casting machine high efficiency continuous casting, strand pull out temperature height, and shape is regular, and temperature loss is small, and strand is cut
Disconnected quick, strand initial temperature is high.High-temperature continuous casting blank goes out after withdrawal straightening machine through fly-cutting, and the strand high speed on cocurrent flow is not converged successively
Gather hot sending roller-way and rapid transit arrive mill, the not heated Direct Rolling of blank, which strand convergence transportational process
Middle temperature drop is minimum, easy to operate, easily tissue production.Steel rolling strand arrive at a station temperature height, can exempt from heat Direct Rolling, to milling train damage
It is small.The present invention farthest improves temperature when strand cut-out, farthest shortens strand from continuous casting to steel rolling
Time farthest reduces temperature and thermal loss of the strand in transmission process, makes full use of continuous casting billet metallurgy thermal energy,
Strand energy saving consumption in transmission process is greatly reduced, lumber recovery is improved, saves metal consumption, shortens production week
Phase, and simplify the technological process of production, plant area and transporting equipment are reduced, producing cost and capital expenditure is saved, improves
Product quality.By cooling sprayer, the up-small and down-big unevenness of two cold water spray top nozzle water spray of traditional square billet is avoided
Even problem, it is therefore prevented that damage of the bleed-out accident to spray system；Nozzle ring assembly and disassembly are convenient, and fast, accurate positioning greatlys save
Maintenance time improves the labor intensity of maintenance operation personnel；Farthest improve the operating rate of billet caster, strand
It is cooling uniform, slab quality is improved, guarantee is provided for the high pulling rate of square billet, realizes efficient high yield.
Description of the drawings
Fig. 1 is the vertical view that wire and rod continuous casting billet high speed direct sending of the present invention directly rolls system arrangement；
Fig. 2 is the front view that wire and rod continuous casting billet high speed direct sending of the present invention directly rolls system arrangement；
Fig. 3 is the structural schematic diagram of cooling sprayer of the present invention；
Fig. 4 is the structural schematic diagram of the nozzle ring group of the present invention；
Fig. 5 is another structural schematic diagram of nozzle ring group of the present invention.
Piece mark explanation
1 minor radius high casting speed continuous casting machine
2 fast hydraulic pressures are cut
3 cut rear roller-way
4 gate mechanisms
5 high speed strand streams converge roller-way
6 rapid transits are heat-fed roller-way
7 wire and bar mills
11 casting streams
12 water inlet supervisors
13 nozzle ring groups
131 long tubes
132 short tubes
133 nozzles
134 jet pipes
14 connecting tubes
15 water inlets
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
Embodiment
As depicted in figs. 1 and 2, a kind of wire and rod continuous casting billet, which exempts to heat, directly rolls system, is mainly used for the production of wire and rod
In the process, including successively minor radius high casting speed continuous casting machine 1, the fast hydraulic pressure being closely arranged cut 2, cut rear roller-way 3, high speed strand stream
Converge roller-way 5, rapid transit hot sending roller-way 6 and wire and bar mill 7；It cuts and is set between rear roller-way 3 and high speed strand stream convergence roller-way 5
It is equipped with the gate mechanism 4 for entering and letting pass for stopping strand, gate can stop that strand enters the convergence of high speed strand stream when rising
Roller-way 5, the strand flowed where letting pass when falling enter strand stream convergence roller-way, play strand and transport the work orderly adjusted successively
With.After the high pulling rate of strand pulls out, high temperature strand cuts rear roller-way 3 by entering after certain cutting to length, and gate mechanism 4 is according to arriving first elder generation
It send principle that strand is let pass successively and enters high speed strand stream convergence roller-way 5, strand high speed converges on rapid transit hot sending roller-way 6
Wire and bar mill 7 is transported to carry out exempting from heating rolling.
Wherein, 1 radius of minor radius high casting speed continuous casting machine is 6m-9m；It is equipped with high pulling rate crystallizer, pulling rate is more than 3.5m/
min.High pulling rate crystallizer has lower resistance cavity structure, and efficient cooling water seam, copper pipe uniqueness corner structure is to ensure that strand exists
Uniform cooling in crystallizer and go out crystallizer casting blank shell thickness.It is equipped with cooling system, temperature is more than before ensureing strand cutting
980 DEG C, strand neat appearance, excellent surface quality.Fast hydraulic pressure is closely set in 1 downstream of minor radius high casting speed continuous casting machine and cuts 2,
Withdrawal straightening machine is reduced to greatest extent to cut at a distance from 2 with fast hydraulic pressure, improves temperature when strand is cut；It is online same that fast hydraulic pressure cuts 2
Step cuts continuous-cast blank, efficient and convenient, and cutting speed is fast, cuts success rate height, and equipment failure rate is low, cuts the regular not shadow of notch
Strand rolling is rung, conventional gas flame cuttiug needs one or two minutes, and fast hydraulic pressure cuts 2 and needs several seconds, shortens
Shear time, reduces temperature drop.
It is high speed roller-way wherein to cut rear roller-way 3, using frequency conversion or non-frequency, can strand be sent to high speed strand at a high speed
Stream convergence roller-way 5.High speed strand stream converges 5 groups of roller-way and is filled in loudspeaker, is become narrow gradually by upstream to downstream, can will be in every one stream
Strand high speed converges on rapid transit hot sending roller-way 6, and strand high speed converges, non-slip, not card resistance.Rapid transit is heat-fed roller-way
6 be high speed roller-way, and frequency conversion or non-frequency can be used, and strand is delivered to mill into high speed after the roller-way and rolled by strand
System.
Strand 3 region of roller-way after cutting is more and comes together, and strand is sent into high speed strand stream convergence roller-way 5 in groups
During and on high speed strand stream convergence roller-way 5 strand be also more in groups, can make strand cooling slow in this way, subtract
Few temperature loss, ensures temperature when follow-up rolling.
Gate mechanism 4 is preferably the adjustable end stop driven using hydraulic pressure or air pressure in this example, is controlled convenient for remote operation.Its
In cut rear roller-way 3, high speed strand stream convergence roller-way 5, rapid transit hot sending roller-way 6 be high speed roller-way, speed can be controlled in 30-
100m/min。
For the present invention to improve pulling rate, it is basic to improve strand to go out conticaster temperature；High temperature strand after shearing is by high speed
Convergence and conveying are sent to steel rolling and are rolled, and whole process temperature loss controls within the scope of less than 50 DEG C.
Further as shown in Figure 3 and Figure 4, it is provided with cooling sprayer on Small Radius high casting speed continuous casting machine 1, wrapped
Spraying mechanism and water inlet supervisor 12 are included, water inlet supervisor 12 supports spraying mechanism, key to be as fixing bracket simultaneously in this example：
Water inlet supervisor 12 is located at the inner arc side of casting stream 11, and spraying mechanism is used to carry out secondary cooling to strand, is mounted on water inlet supervisor
On 12, and it is connected to water inlet supervisor 12.
It is small to 12 damage of supervisor of intaking when the accidents such as bleed-out occur for conticaster since water inlet supervisor 12 is located at inner arc side, no
It influences conticaster and reorganizes production, easy for assemble or unload, fixing bracket is also water inlet supervisor 12 simultaneously, itself can be carried out cold
But, it is unlikely to deform.
Further, water inlet supervisor 12 is divided into multiple segmentations along casting 11 arc directions of stream, and each 12 segmentation of water inlet supervisor is up and down
Both ends are both provided with water inlet 15.Step-by-step arrangement, when it is a certain segmentation when something goes wrong, convenient for single split remove repair or more
It changes, without all removing or replacing entire mechanism.Each is segmented into a spraying zone, and each area is same using upper and lower water inlet 15
The mode of Shi Tongshui avoids cooling water from being unevenly distributed up and down.
Further as shown in figure 4, spraying mechanism is nozzle ring group 13,13 place plane of nozzle ring group is vertical with casting stream 11,
Nozzle ring group 13 is flowed to by close along strand to dilute distribution, and casts stream 11 by being passed through among nozzle ring group 13, is pacified in nozzle ring group 13
Equipped with multiple nozzles 133, nozzle ring group 13 is in eight-sided formation, including the alternately 4 root long pipes 131 and 4 short tubes 122 of connection,
The two root long pipes 131 close to inner arc side are connect by the connecting tubes 14 of Y types with water inlet supervisor 12, connecting tube 14 divide two passes and
Long tube 131 is connected to, and to ensure to be discharged uniformity, nozzle 133 is mounted on short tube 122, the folder of the short tube 122 and long tube 131
Angle is 120 °.
As shown in figure 5, nozzle ring group can also be made of 8 isometric jet pipes 134, octagon structure, connection are formed
Pipe 14 is similarly Y types, and two-way is divided to be connect with jet pipe 134, on 133 installed therein four jet pipes 134 of nozzle, arranged for interval, and phase
The angle of adjacent jet pipe 134 is 120 °.
Further, for the ease of the installation and removal of nozzle ring group 13, nozzle 133 is threadedly coupled with nozzle ring group 13,
Connecting tube 14 and water inlet supervisor 12 and 13 grafting of nozzle ring group.The grafting is that the side of common pin and box sub docking can be used
Formula, simple in structure, nozzle ring group 13 is easily installed and dismantles, and component globality, integration degree are high, realize nozzle 133
Quick-replaceable.The aperture of nozzle 133 is more than or equal to 2mm.It is wide to be applicable in water quality range, is not easy to plug, 133 atomizing effect of nozzle is good,
Jet velocity is fast.
Above-mentioned spray equipment farthest improves the operating rate of billet caster, and slab cooling is uniform, improves casting
Base quality；The up-small and down-big non-uniform problem of two cold water spray top nozzle water spray of traditional square billet and bleed-out accident are avoided to spray
The problem of leaching system damages；Simple in structure, nozzle ring group 13 is convenient for disassembly and assembly, and fast, accurate positioning can greatly save dimension
The time is repaiied, the labor intensity of maintenance operation personnel is improved；Fixing bracket and water inlet supervisor 12 are fixed on inner arc side, not variable
Shape, not by bleed-out accident impact, the service life increases.Fixing bracket carries water cooling and is unlikely to deform, long lifespan.It is provided for the high pulling rate of square billet
Ensure, realizes the purpose of efficient high yield.
Present invention simultaneously provides a kind of wire and rod continuous casting billets to exempt to heat straight rolling method, using a kind of above-mentioned wire and rod continuous casting
Base exempts from heating and directly rolls system, and the strand that conticaster is produced is sent by roller-way after cutting 3 to strand stream after fast hydraulic pressure cuts 2 cuttings
Converge roller-way, strand stream convergence roller-way and cut gate mechanism 4 is set between rear roller-way 3, the sequencing reached according to strand into
Row is let pass, and strand converges roller-way high speed through strand stream and converges to transport hot sending roller-way, and is heat-fed roller-way by strand list stream by transport
Ground is fed rapidly into milling train and carries out exempting from heating rolling.
1 radius of minor radius high casting speed continuous casting machine is 6m-9m；It is equipped with high pulling rate crystallizer, pulling rate is more than 3.5m/min；
Temperature is more than 980 DEG C before controlling strand cutting by conticaster secondary cooling system, and the high temperature strand after shearing converges by high speed
Poly- and conveying is sent into the steel rolling operation of rolling, and temperature loss controls within the scope of less than 50 DEG C.Pass through high pulling rate and high speed roller-way
Shorten time of delivery, reduces temperature drop；Strand conveys for more in groups after ejection roller way, can also reduce temperature loss, protects
Demonstrate,prove rolling quality.
Compared with prior art, the present invention has following technological merit：
1, minor radius high casting speed continuous casting machine high efficiency continuous casting, casting speed is fast, and strand pulls out temperature height, and shape is regular, temperature
Lose small, strand is cut quick, and strand initial temperature is high.
2, it cuts strand and orderly enters high speed strand stream convergence roller-way, easy to operate, easily tissue production successively.
3, strand is high to inlet of rolling mill temperature, can exempt to heat Direct Rolling, is damaged to milling train small.
Any person skilled in the art all can without violating the spirit and scope of the present invention carry out above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed spirit with
All equivalent modifications completed under technological thought or change should be covered by the claim of the present invention.
Claims (8)
1. a kind of wire and rod continuous casting billet, which exempts from heating, directly rolls system, it is characterised in that：Including be closely arranged successively conticaster, quickly
Hydraulic shear cuts rear roller-way, strand stream convergence roller-way, transport hot sending roller-way and wire and bar mill；The strand stream convergence roller-way will
It is converged to per the strand in one stream on transport hot sending roller-way；Described cut is provided with and is used between rear roller-way and strand stream convergence roller-way
Stop the gate mechanism that strand enters and lets pass, strand stream convergence roller-way is in narrow horn-like in the wide downstream in upstream.
2. a kind of wire and rod continuous casting billet according to claim 1, which exempts from heating, directly rolls system, it is characterised in that：The gate machine
Structure is the adjustable end stop driven using hydraulic pressure or air pressure.
3. a kind of wire and rod continuous casting billet according to claim 1, which exempts from heating, directly rolls system, it is characterised in that：The conticaster
Radius is 6m-9m.
4. a kind of wire and rod continuous casting billet according to claim 1, which exempts from heating, directly rolls system, it is characterised in that：The conticaster
Pulling rate is more than 3.5m/min；It is described cut rear roller-way, transport hot sending roller-way be frequency conversion roller-way.
5. a kind of wire and rod continuous casting billet according to claim 1, which exempts from heating, directly rolls system, it is characterised in that：The conticaster
On be provided with secondary cooling spray equipment, including spraying mechanism and be responsible for as support bracket fastened water inlet, the water inlet is responsible for
Positioned at the inner arc side of casting stream, the spraying mechanism is mounted on water inlet supervisor, and is connected to water inlet supervisor；Edge is responsible in the water inlet
Casting stream arc direction is divided into multiple segmentations, and each segmentation upper and lower ends are both provided with water inlet.
6. a kind of wire and rod continuous casting billet according to claim 5, which exempts from heating, directly rolls system, it is characterised in that：The spray thrower
Structure is nozzle ring group, and plane is vertical with casting stream where the nozzle ring group, and casts and flow by being passed through among nozzle ring group, nozzle ring group
On multiple nozzles are installed, the nozzle ring group is in eight-sided formation, and the nozzle pitch is mounted on jet pipe, and the jet pipe is logical
Cross connecting tube and water inlet supervisor's connection.
7. a kind of wire and rod continuous casting billet exempts to heat straight rolling method, using a kind of wire and rod described in claim 1-6 any one
Continuous casting billet exempts from heating and directly rolls system, it is characterised in that：The strand that conticaster is produced after rapid hydraulic cutting is cut by cutting after
Roller-way send to strand stream and converges roller-way, strand stream convergence roller-way and cuts gate mechanism is arranged between rear roller-way, is reached according to strand
Sequencing let pass, strand through strand stream convergence roller-way high speed converge to transport hot sending roller-way, and by transport be heat-fed roller
Strand list stream is fed rapidly into milling train and carries out exempting from heating rolling by road.
8. a kind of wire and rod continuous casting billet according to claim 7 exempts to heat straight rolling method, it is characterised in that：The conticaster
Radius is 6m-9m；Pulling rate is more than 3.5m/min；Temperature is more than 980 before controlling strand cutting by conticaster secondary cooling system
DEG C, the high temperature strand after shearing is sent by high speed convergence and conveying into the steel rolling operation of rolling, and temperature loss is controlled less than 50
Within the scope of DEG C.
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| CN201610783622.5A CN106180191B (en) | 2016-08-31 | 2016-08-31 | A kind of wire and rod continuous casting billet exempts from heating and directly rolls system and method |
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| CN201610783622.5A CN106180191B (en) | 2016-08-31 | 2016-08-31 | A kind of wire and rod continuous casting billet exempts from heating and directly rolls system and method |
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| CN107008750B (en) * | 2017-04-20 | 2019-10-11 | 中冶南方工程技术有限公司 | Bilateral road length material continuous casting and rolling production line and its production method |
| CN107671120A (en) * | 2017-09-29 | 2018-02-09 | 四川德胜集团钒钛有限公司 | A kind of continuous casting and rolling production line |
| CN107695100A (en) * | 2017-09-29 | 2018-02-16 | 四川德胜集团钒钛有限公司 | A kind of steel exempt from heating and directly roll system and method |
| CN107497852A (en) * | 2017-09-30 | 2017-12-22 | 四川德胜集团钒钛有限公司 | A kind of steel exempt from heating rolling system and method |
| CN108356076A (en) * | 2018-01-18 | 2018-08-03 | 河钢股份有限公司承德分公司 | A kind of continuous casting billet milling method |
| CN108435798A (en) * | 2018-06-20 | 2018-08-24 | 陈明友 | A kind of milling train |
| CN109158565A (en) * | 2018-10-15 | 2019-01-08 | 中冶华天工程技术有限公司 | A kind of continuous casting billet is quickly heat-fed process and device |
| CN109702162A (en) * | 2019-03-06 | 2019-05-03 | 山东钢铁股份有限公司 | A kind of conticaster and its casting billet surface clearing apparatus |
| CN110421002A (en) * | 2019-07-08 | 2019-11-08 | 江苏煌明能源科技有限公司 | Bar Wire Product is without heating furnace continuous casting direct-rolling process |
| CN112122343B (en) * | 2020-09-09 | 2022-09-06 | 山西云时代太钢信息自动化技术有限公司 | Quick direct-feeding system platform for small-section casting blank |
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| CN205988958U (en) * | 2016-08-31 | 2017-03-01 | 中冶赛迪工程技术股份有限公司 | A kind of wire and rod continuous casting billet is exempted from heating and is directly rolled system |
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| CN201008954Y (en) * | 2007-03-15 | 2008-01-23 | 马鞍山钢铁股份有限公司 | Secondary cooling device of billet conticaster |
| CN201432087Y (en) * | 2009-06-11 | 2010-03-31 | 山东省新纪元冶金设备有限公司 | Two-cold-chamber additional condenser section |
| CN201427180Y (en) * | 2009-07-13 | 2010-03-24 | 唐山钢铁股份有限公司 | Secondary cooling device on lower port of mold |
| CN102950267A (en) * | 2011-08-31 | 2013-03-06 | 扬州宏诚冶金设备有限公司 | Spraying device for continuous casting |
| CN203076552U (en) * | 2013-01-23 | 2013-07-24 | 新疆八一钢铁股份有限公司 | Modified crystallizer foot roller frame |
| CN104550237B (en) * | 2014-11-28 | 2016-09-21 | 中冶南方工程技术有限公司 | For producing the continuous casting-Direct Rolling device and method of Bar Wire Product and section bar |
| CN105414184A (en) * | 2015-12-15 | 2016-03-23 | 中冶南方工程技术有限公司 | Turning roller path for direct rolling of multi-strand continuous casting slab |
| CN205437083U (en) * | 2015-12-24 | 2016-08-10 | 四川德胜集团钒钛有限公司 | Two cold shower systems of continuous casting |
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