CN209520198U - A kind of wire and rod continuous casting and rolling production line - Google Patents
A kind of wire and rod continuous casting and rolling production line Download PDFInfo
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- CN209520198U CN209520198U CN201920114294.9U CN201920114294U CN209520198U CN 209520198 U CN209520198 U CN 209520198U CN 201920114294 U CN201920114294 U CN 201920114294U CN 209520198 U CN209520198 U CN 209520198U
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Abstract
The utility model discloses a kind of wire and rod continuous casting and rolling production lines, including conticaster, roller-way transportation system, temperature compensation system and wire and rod rolling system；The production line quickly and can flow to the slab of multiple-strand caster production in wire and rod rolling system, using the small induction heating apparatus of occupied area, compensate the online temperature loss of slab and head and tail temperature difference, by the way that cocurrent roller-way is combined with temperature compensation system, it can be when reducing energy consumption and production costs, rate is directly rolled when reducing and eliminate slab cross, vertical temperature difference, improve wire and rod properties of product, while improving production products of different specifications.The product of the production line continuous casting and rolling can be expanded to the excellent special steel such as carbon constructional quality steel, steel alloy, and efficiency of energy utilization is high, energy conservation and environmental protection, and efficiency of energy utilization is high, energy conservation and environmental protection, and wire and rod product quality is guaranteed.
Description
Technical field
The utility model belongs to metallurgical continuous casting and rolling field, and in particular to a kind of wire and rod continuous casting and rolling production line.
Background technique
The conventional production process of wire and rod is mostly at present: molten steel is cooling after the pans of conticaster, crystallizer, spray section
It is aligned after solidification by withdrawal straightening machine and pulls out slab, slab is sent into continuous blank-discharging by rollgang after cutting torches are at scale
Area.The slab for meeting hot sending condition moves to steel splitting machine through machine for moving steel or hook steel machine, and steel splitting machine passes through hot sending roller-way again and directly send
Into heater for rolling steel, at this time the general temperature of slab in the range of 500-700 DEG C, steel rolling can not Direct Rolling, need heating furnace
Being heated to 1040-1140 DEG C could send again to wire and rod rolling unit.The defect of this production procedure is: high temperature slab is cold
But it reheats afterwards and be easy to cause a large amount of energy charge, even hot-loading and hot-conveying, it is still desirable to heat, equally also consume a large amount of
Energy；The construction investment of heater for rolling steel, daily maintenance, material consumption etc. will also expend huge economic input.
Therefore, in recent years, square billet gradually directly rolls technology development to direct sending, and the core of direct sending Direct Rolling Technology is: improving
Conticaster pulling rate shortens conticaster to the time of milling train, to improve slab temperature, slab is rolled without heating furnace Direct Rolling
For steel start rolling temperature between pair rolling and zerolling, finishing temperature and pair rolling temperature difference are little, substantially meet
Common hot-rolled reinforced bar steel rolling demand.But the defect of this production procedure is: conticaster and rolling system need very well
Matching, but since rolling system needs to produce the wire and rod of different size model, hourly output is changed greatly with specification, and is connected
Casting machine is limited by the arrangement of hydraulic shear, produces pulling rate adjustable range very little, causes offline slab amount big, and steel rolling converts steel grade specification
It is low that rate is directly rolled afterwards；In order to guarantee rolling temperature, product specification is single when conticaster and rolling system directly roll；The low pulling rate of continuous casting simultaneously
Inborn head and tail temperature difference also affects the performance of wire and rod product when production, therefore main production requires not properties of product at present
High hot-rolled reinforced bar steel.
Summary of the invention
In view of this, the utility model lies in that a kind of wire and rod continuous casting and rolling production line is provided, by optimizing production line structure
At and lay form, reach reduction and eliminate that slab is horizontal, vertical temperature difference, improve wire and rod properties of product and to improve production different
The purpose of rate is directly rolled when specification product.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of wire and rod continuous casting and rolling production line, including conticaster, roller-way transportation system, temperature compensation system and line
Rolling bar system；Wherein roller-way transportation system mainly by roller-way after cutting front roller-way arranged successively in the conveying direction, cutting,
Ejection roller way, cocurrent roller-way and hot sending roller-way composition；Temperature compensation system is mainly by induction heating apparatus and temperature detection
Device composition；The barrel length of cocurrent roller-way is gradually tapered up along conveying direction, and the two sides of cocurrent roller-way are equipped with baffle；Temperature inspection
Surveying device includes the temperature-detecting device I and temperature-detecting device for being correspondingly arranged at induction heating apparatus arrival end and outlet end
Ⅱ。
Further, it is 150~200mm that conticaster, which is production specification,24~10 multithread billet casters, the base of conticaster
This radius is R8.0~10.0m.
Further, conticaster is mainly by pans, crystallizer, mould vibration device, two cold water spray sections, guide roller, drawing
The machine of rectifying and shear composition；Temperature-detecting device III is wherein equipped between two cold water spray sections and withdrawal straightening machine.
Further, shear is flame cutting machine or hydraulic shear.
Further, temperature-detecting device IV is equipped with after cutting between roller-way and ejection roller way.
Further, roller-way and hot sending roller-way are equipped with insulation cover after cutting front roller-way, cutting.
Further, machine for moving steel or hook steel machine are equipped with above ejection roller way, ejection roller way side is equipped with collecting frame or overturning
Cold bed.
Further, the interspersed setting of several groups induction heating apparatus between hot sending roller-way and before each group induction heating apparatus,
At least more than 1 scale of the hot sending roller-way straight length at rear.
Further, wire and rod rolling system includes that high pressure water dephosphorization apparatus, roller bed, slab kick waste-removing device and steel rolling
Unit；Wherein rolling mills are mainly made of roughing mills, intermediate mill and mm finishing mill unit.
The utility model has the beneficial effects that:
The production line quickly and can flow to the slab of multiple-strand caster production in wire and rod rolling system, using land occupation
The small induction heating apparatus of area, the online temperature loss of compensation slab and head and tail temperature difference, by by cocurrent roller-way and temperature-compensating
System combines, and can reduce and eliminate slab cross, vertical temperature difference when reducing energy consumption and production costs, improve bar
Material properties of product, while improving and directly rolling rate when producing products of different specifications.The product of the production line continuous casting and rolling can be expanded to
The excellent special steel such as carbon constructional quality steel, steel alloy, efficiency of energy utilization is high, energy conservation and environmental protection, and efficiency of energy utilization is high, energy-saving ring
It protects, wire and rod product quality is guaranteed.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is the system schematic of the utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is cocurrent roller-way structural schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
A kind of wire and rod continuous casting and rolling production line, including conticaster, roller-way transportation system, temperature compensation system and line
Rolling bar system；Wherein roller-way transportation system is mainly by cutting front roller-way 11 arranged successively in the conveying direction, cutting back roller
Road 13, ejection roller way 15, cocurrent roller-way 20 and hot sending roller-way 21 form；Temperature compensation system is mainly by induction heating apparatus 23
And temperature-detecting device composition；The barrel length of cocurrent roller-way 20 is gradually tapered up along conveying direction, and the two sides of cocurrent roller-way
Equipped with baffle 19；Temperature-detecting device includes the temperature detection dress for being correspondingly arranged at 23 arrival end of induction heating apparatus and outlet end
Set I 22 and temperature-detecting device II.
Specifically, baffle 19 is installed in 20 two sides of cocurrent roller-way, it is used to be oriented to slab when slab cocurrent.Temperature-compensating system
Temperature-detecting device I 22 and temperature-detecting device II in system need to be correspondingly arranged at the arrival end of induction heating apparatus 23 and go out
Mouthful end, induction heating apparatus 23 according to temperature-detecting device I 22 and the real-time temperature-measuring results switch operating of temperature-detecting device II/
Standby mode.Induction heating apparatus 23 is settable one or more groups of according to demand, and each group induction heating apparatus is interspersed to be arranged two
Root is heat-fed between roller-way, and at least more than 1 scale of the hot sending roller-way straight length of the forward and backward side of each group induction heating apparatus, together
When hot sending roller-way driving motor need both realized in this way using variable-frequency motor the selectivity heating on slab head according to demand
Heating, is also able to achieve the adjusting of slab conveying speed in heating process, is conducive to transmission process and heating process better
Match, energy conservation and efficiency is made to improve being optimal.
Conticaster in the production line is that production specification is 150~200mm24~10 multithread billet casters, conticaster
Basic radius be R8.0~10.0m.Specifically, conticaster is mainly by pans 3, crystallizer 4, mould vibration device 5, two
Cold water spray section 6, guide roller 7, withdrawal straightening machine 9 and shear 12 form；Wherein it is equipped between two cold water spray sections 6 and withdrawal straightening machine 9
Temperature-detecting device III 8.The conticaster is configured with two cold dynamic control models, and temperature-detecting device III 8 is cast for real-time detection
Base temperature.The secondary cooling water of two cold water spray sections 6 is to be examined by dynamic water allocation model according to the temperature that 9 front of withdrawal straightening machine is arranged in
III 8 real time temperature measurement result of device is surveyed to correct water, so that it is guaranteed that slab straightening temperature and rolling temperature, further ensure that slab
Quality and raising energy utilization rate.
In the production line, temperature-detecting device IV 14 is equipped with after cutting between roller-way 23 and ejection roller way 15.In ejection roller
Temperature-detecting device IV 14 is set before road 15, to detect the slab temperature after cutting off, by slab tracing management model according to life
Produce rhythm, production steel grade determines slab temperature whether in 23 unit time of induction heating apparatus temperature compensation range.
The production line is combined by the cocurrent roller-way for gradually tapering up barrel length with temperature compensation system, on the one hand,
Conticaster uses the two cold dynamic control models based on (online) temperature-detecting device 8 to dynamically distribute water, thus the company of controlling
Cast out base temperature；Temperature-detecting device 14 based on slab tracing management model can real-time tracking and determine tandem rolling slab temperature,
And use the small induction heating apparatus 23 of occupied area can online compensation slab temperature, reduce and eliminate that slab is horizontal, Zong Xiangwen
Difference；On the other hand, the cocurrent roller-way 20 in roller-way transportation system can realize quick cocurrent, further reduce temperature loss；Two
Person's mutual cooperation effect, improves wire and rod properties of product.
This production line can stablize the performance of wire and rod product and improve continuous casting when reducing energy consumption and production costs
Tandem rolling directly rolls rate, while continuous casting and rolling product can be expanded to the excellent special steel such as carbon constructional quality steel, steel alloy, using energy source effect
Rate is high, energy conservation and environmental protection.
Above-mentioned shear 12 is flame cutting machine or hydraulic shear.When more preferably improving efficiency of energy utilization, Ying Youxian
Using hydraulic shear, to reduce induction heating apparatus 23 to the amount of temperature compensation of slab.
In the production line, roller-way 13 and hot sending roller-way 21 are equipped with insulation cover 10 after cutting front roller-way 11, cutting.Heat preservation
Cover 10 is arranged above every stream roller-way stand, can reduce heat spreader, improves efficiency of energy utilization.Simultaneously cut front roller-way 11,
The driving motor of roller-way 13 and ejection roller way 15 requires to use variable-frequency motor after cutting, to adapt to different process production requirement.
In the production line, machine for moving steel or hook steel machine 16 are equipped with above ejection roller way 15,15 side of ejection roller way, which is equipped with, collects
Rack or turn over cooling bed 18, collecting frame or turn over cooling bed 18 are mutually connected by bridging table 17 with 15 side of ejection roller way, are used
Slab when steel rolling maintenance or when conticaster hourly output is greater than steel rolling yield is offline.
In the production line, wire and rod rolling system includes that high pressure water dephosphorization apparatus 24, roller bed 25, slab kick waste-removing device
26 and rolling mills 27；Wherein rolling mills 27 are mainly by the conventional bar such as roughing mills, intermediate mill and mm finishing mill unit
Material production equipment composition.
When conticaster in the production line produces hot-rolled reinforced bar steel, preferentially pulling rate should be increased to greater than equal to 2.8m/
Min reduces production energy consumption to reduce the operation duration of temperature compensation system.Rollgang maximum delivery in roller-way transportation system
Speed should be greater than be equal to 1.5m/s, wherein ejection roller way 15, be heat-fed roller-way 21 maximum delivery speed should be greater than be equal to 3m/s, with
Roller-way conveying speed is improved, slab thermal loss is reduced, reduces production energy consumption.
By taking a certain specific production line as an example
Conticaster uses the conticaster of the basic radius of R9.0m, produces 165mm × 165mm specification small billet, cut lengths
12m, more preferably to utilize slab temperature, casting speed control is in 2.8m/min or more when producing hot-rolled reinforced bar steel, according to converter capacity
It may be selected to use 4 strand casting machines with bar hourly output, conticaster hourly output is up to 140t/h.Molten steel successively passes through when production
Ladle turret 1, pans 3, crystallizer 4, mould vibration device 5, two cold water spray sections 6, guide roller 7, is drawn ladle 2
Machine 9 is rectified, conticaster is configured with two cold dynamic control models, is provided with temperature-detecting device between two cold water spray sections and withdrawal straightening machine
III 8, real-time detection slab temperature, the secondary cooling water of spray section is by dynamic water allocation model according to setting temperature-detecting device
Real time temperature measurement result corrects water, so that it is guaranteed that slab straightening temperature and rolling temperature, further ensure that slab quality and mention
High energy source utilization rate.
Roller-way 13 and hot sending roller-way 21 are equipped with insulation cover 10 after roller-way 11, cutting before cutting, and protective cover reduces
Heat loss improves efficiency of energy utilization.
After withdrawal straightening machine 9, broken the slab of wick-containing solidification, under normal production conditions, cutting using hydraulic shear THE ADIABATIC SHEAR IN
Casting billet surface mean temperature afterwards is between 960~1100 DEG C, when slab is quickly run on rollgang after cutting, is located at
After IV 14 pairs of slab head temperatures of temperature-detecting device of 15 leading portion of blank roller way carry out thermometrics, by slab tracing management model according to
Rhythm of production, production steel grade determine slab temperature whether in 23 unit time of induction heating apparatus temperature compensation range, and such as 4 flow
Corresponding single group induction heating apparatus requires the heating-up time of single slab to be less than or equal to 50s, is unsatisfactory for needing to be arranged when demand
Multiple groups induction heating apparatus, this programme should preferably improve pulling rate, control casting blank surface temperature, setting single group induction heating apparatus,
To reduce heat loss as far as possible.Slab too low for temperature and beyond subsequent induction heating apparatus heating efficiency, slab is defeated
It send to ejection roller way 15, the offline system of slab will start, this individual slab is rejected in direct sending mode, such as conticaster production
Base end to end, pans replace when slab.Temperature meets the slab for directly rolling demand, will be quick by ejection roller way, cocurrent roller-way
It send to induction heating apparatus, slab temperature may remain in 940 DEG C or more.
Rollgang maximum delivery speed should be greater than being equal to 1.5m/s, and ejection roller way, hot sending roller-way maximum delivery speed are answered
More than or equal to 3m/s, roller-way conveying speed is improved, reduces slab thermal loss, reduces production energy consumption.
Induction heating apparatus is according to front and back temperature-detecting device real time temperature measurement result switch operating, standby mode.It is normal raw
Hot-rolled reinforced bar steel under the conditions of production, induction heating apparatus only need to promote slab head temperature, save the energy, simultaneously
Slab is unqualified caused by solving the problems, such as because of head and tail temperature difference.After induction heating apparatus, slab mean temperature can be promoted to
1020~1060 DEG C, after high pressure water dephosphorization apparatus and roller bed, the temperature of first roughing mill may remain in 960 DEG C
More than, meet rolling requirements.
When using the production of 7~10 strand casting machines, conticaster unit hour yield will be much larger than single rolling line production capacity,
Therefore it is generally necessary to which 1 conticaster corresponds to a plurality of rolling line and produced, cocurrent roller-way needs that is, will using 3 mode of attached drawing at this time
Cocurrent roller-way rear end is divided into multichannel, and each road roller-way barrel length being separated out is gradually tapered up along conveying direction, thus by slab
It is quickly sent to different rolling lines respectively.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (9)
1. a kind of wire and rod continuous casting and rolling production line, including conticaster, roller-way transportation system, temperature compensation system and bar
Material rolling system；Wherein roller-way transportation system mainly by roller-way after cutting front roller-way arranged successively in the conveying direction, cutting, go out
Blank roller way, cocurrent roller-way and hot sending roller-way composition；Temperature compensation system is mainly filled by induction heating apparatus and temperature detection
Set composition；It is characterized by: the barrel length of cocurrent roller-way is gradually tapered up along conveying direction, and the two sides of cocurrent roller-way are equipped with gear
Plate；Temperature-detecting device includes the temperature-detecting device I and temperature for being correspondingly arranged at induction heating apparatus arrival end and outlet end
Detection device II.
2. wire and rod continuous casting and rolling production line according to claim 1, it is characterised in that: conticaster is that production specification is
150~200mm24~10 multithread billet casters, the basic radius of conticaster is R8.0~10.0m.
3. wire and rod continuous casting and rolling production line according to claim 2, it is characterised in that: conticaster mainly by pans,
Crystallizer, mould vibration device, two cold water spray sections, guide roller, withdrawal straightening machine and shear composition；Wherein two cold water spray section
Temperature-detecting device III is equipped between withdrawal straightening machine.
4. wire and rod continuous casting and rolling production line according to claim 3, it is characterised in that: shear is flame cutting machine
Or hydraulic shear.
5. wire and rod continuous casting and rolling production line according to claim 1, it is characterised in that: roller-way and ejection roller way after cutting
Between be equipped with temperature-detecting device IV.
6. wire and rod continuous casting and rolling production line according to claim 1, it is characterised in that: cutting front roller-way, cutting back roller
Road and hot sending roller-way are equipped with insulation cover.
7. wire and rod continuous casting and rolling production line according to claim 1, it is characterised in that: be equipped with above ejection roller way and move steel
Machine or hook steel machine, ejection roller way side are equipped with collecting frame or turn over cooling bed.
8. wire and rod continuous casting and rolling production line according to claim 1, it is characterised in that: several groups induction heating apparatus is worn
It plugs and sets between hot sending roller-way and the hot sending roller-way straight length of the forward and backward side of each group induction heating apparatus is fixed at least more than 1
Ruler.
9. any wire and rod continuous casting and rolling production line according to claim 1~8, it is characterised in that: wire and rod rolling system
System kicks waste-removing device and rolling mills including high pressure water dephosphorization apparatus, roller bed, slab；Wherein rolling mills are mainly by roughing
Unit, intermediate mill and mm finishing mill unit composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920114294.9U CN209520198U (en) | 2019-01-23 | 2019-01-23 | A kind of wire and rod continuous casting and rolling production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920114294.9U CN209520198U (en) | 2019-01-23 | 2019-01-23 | A kind of wire and rod continuous casting and rolling production line |
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| CN209520198U true CN209520198U (en) | 2019-10-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167855A (en) * | 2019-12-26 | 2020-05-19 | 河钢股份有限公司承德分公司 | Rod and wire rod concurrent heating rolling process |
| CN111438188A (en) * | 2020-03-27 | 2020-07-24 | 中冶赛迪工程技术股份有限公司 | Long material direct rolling casting blank heat preservation device, production line and method |
| CN114728329A (en) * | 2019-11-19 | 2022-07-08 | Sms集团有限公司 | Method for operating a plant in the metallurgical industry |
| CN114798739A (en) * | 2022-04-29 | 2022-07-29 | 山东钢铁集团永锋临港有限公司 | Method for continuously casting multi-flow 16m small square billet multi-segmentation straight bar |
-
2019
- 2019-01-23 CN CN201920114294.9U patent/CN209520198U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114728329A (en) * | 2019-11-19 | 2022-07-08 | Sms集团有限公司 | Method for operating a plant in the metallurgical industry |
| CN114728329B (en) * | 2019-11-19 | 2024-04-16 | Sms集团有限公司 | Method for operating a plant of the metallurgical industry |
| CN111167855A (en) * | 2019-12-26 | 2020-05-19 | 河钢股份有限公司承德分公司 | Rod and wire rod concurrent heating rolling process |
| CN111167855B (en) * | 2019-12-26 | 2022-03-15 | 河钢股份有限公司承德分公司 | Rod and wire rod concurrent heating rolling process |
| CN111438188A (en) * | 2020-03-27 | 2020-07-24 | 中冶赛迪工程技术股份有限公司 | Long material direct rolling casting blank heat preservation device, production line and method |
| CN111438188B (en) * | 2020-03-27 | 2024-05-17 | 中冶赛迪工程技术股份有限公司 | Long material direct rolling casting blank heat preservation device, production line and method |
| CN114798739A (en) * | 2022-04-29 | 2022-07-29 | 山东钢铁集团永锋临港有限公司 | Method for continuously casting multi-flow 16m small square billet multi-segmentation straight bar |
| CN114798739B (en) * | 2022-04-29 | 2023-03-10 | 山东钢铁集团永锋临港有限公司 | Method for continuously casting multi-flow 16m small square billet multi-segmentation straight bar |
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