CN110421002A - Bar Wire Product is without heating furnace continuous casting direct-rolling process - Google Patents
Bar Wire Product is without heating furnace continuous casting direct-rolling process Download PDFInfo
- Publication number
- CN110421002A CN110421002A CN201910607876.5A CN201910607876A CN110421002A CN 110421002 A CN110421002 A CN 110421002A CN 201910607876 A CN201910607876 A CN 201910607876A CN 110421002 A CN110421002 A CN 110421002A
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- Prior art keywords
- continuous casting
- roller
- rolling
- direct
- heating furnace
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 37
- 238000005096 rolling process Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000003303 reheating Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of Bar Wire Products without heating furnace continuous casting direct-rolling process, Bar Wire Product technical field of producing.For the present invention using heating Direct Rolling is exempted from, no heating furnace is capable of saving fuel, reduces energy consumption；The reheating of steel billet is avoided using Direct Rolling, can at least reduce by 0.6% oxidization burning loss；Continuous casting pinch-off uses hydraulic shear, and the cutting time is short, and the temperature loss for reducing slab is reduced, while reducing gas consumption, save the cost；Using insulating roller way, temperature losses are reduced, guarantees that continuous casting billet enters continuous casting cold bed front surface temperature still at 1000 DEG C or more, is conducive to direct-rolling process；Influence using no furnace design, when reducing heating furnace blowing out maintenance to Rolling production.
Description
Technical field
The invention belongs to Bar Wire Product technical field of producing, specifically, more particularly to a kind of Bar Wire Product without heating furnace
Continuous casting direct-rolling process.
Background technique
Traditional continuous casting steel rolling production process are as follows: conticaster → gas flame cuttiug → roller transport → cold bed collection → workshop lifting
Machine handling → hot sending roller-way → upper steel rack → steel splitting machine → enters furnace roller road → heating furnace → tapping set → milling train, is working as front ring
In the case where guaranteed request height, steel excess capacity, dog-eat-dog, domestic many steel mills are energy-saving and emission-reduction, reduce production cost, product
The continuous casting billet Direct Rolling production technology from continuous casting to milling train is explored in pole, and the iron and steel enterprise of some production 6m long continuous casting billets is real
It is existing, but for 10-12m long continuous casting billet, direct rolling process can be successfully used, it is actually rare.Long continuous casting billet realizes that continuous casting directly rolls
Difficult point include the following: the temperature after slab cutting not can guarantee, and be unfavorable for exempting from heating direct-rolling process；For 12m square billet,
Need 4min that could reach scale position from cut place under the conditions of 3m/min pulling rate, temperature reduces in slab transmission process, makes
At the unstable of temperature, direct-rolling process is influenced.
Summary of the invention
The invention discloses a kind of Bar Wire Products without heating furnace continuous casting direct-rolling process.
The present invention is achieved by the following technical solutions:
A kind of Bar Wire Product includes the following steps: to carry out slab using conticaster, continuous casting is cold without heating furnace continuous casting direct-rolling process
But using intelligent controller acquisition Casting speed and temperature feedback value, and steel grade is combined to automatically control water-spraying control intensity, through even
After casting machine produces continuous casting billet using hydraulic shear cutting, warming up treatment is done into rear roller-way is cut, adopts the auto-sequencing that computerizeds control
Afterwards, the time interval required according to steel rolling, successively moves quickly through cooling bed roller, and be collected to turning roller-way, it is one that slab, which collects,
It flows and turns round 90 °, enter hot sending insulating roller way later, by thermometric computer automatic discrimination, temperature meets mill milling requirement
Blank from charging roller enter chain-type steel pulling machine and send to mill front roll road and enter milling train, the blank that temperature cannot be met the requirements by
Kick waste-removing device kick it is useless.
Described to cut rear roller-way and hot sending insulating roller way is provided with insulation cover, the two sides of the insulation cover are equipped with burner.
Compared with prior art, the beneficial effects of the present invention are:
For the present invention using heating Direct Rolling is exempted from, no heating furnace is capable of saving fuel, reduces energy consumption；It is kept away using Direct Rolling
The reheating of steel billet is exempted from, can at least reduce by 0.6% oxidization burning loss；Continuous casting pinch-off uses hydraulic shear, and the cutting time is short, drop
The temperature loss of low slab is reduced, while reducing gas consumption, save the cost；Using insulating roller way, temperature losses are reduced, are protected
Card continuous casting billet enters continuous casting cold bed front surface temperature still at 1000 DEG C or more, is conducive to direct-rolling process；Using no furnace design,
Influence when reducing heating furnace blowing out maintenance to Rolling production.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
In figure: 1, conticaster；2, hydraulic shear；3, rear roller-way is cut；4, cooling bed roller；5, turning roller-way；6, it is heat-fed roller-way；7,
Charging roller；8, waste-removing device is kicked；9, chain-type steel pulling machine；10, mill front roll road.
Specific embodiment
Below with reference to embodiment, the present invention is further described:
A kind of Bar Wire Product includes the following steps: to carry out slab using conticaster, continuous casting is cold without heating furnace continuous casting direct-rolling process
But using intelligent controller acquisition Casting speed and temperature feedback value, and steel grade is combined to automatically control water-spraying control intensity, through even
After casting machine produces continuous casting billet using hydraulic shear cutting, warming up treatment is done into rear roller-way is cut, adopts the auto-sequencing that computerizeds control
Afterwards, the time interval required according to steel rolling, successively moves quickly through cooling bed roller, and be collected to turning roller-way, it is one that slab, which collects,
It flows and turns round 90 °, enter hot sending insulating roller way later, by thermometric computer automatic discrimination, temperature meets mill milling requirement
Blank from charging roller enter chain-type steel pulling machine and send to mill front roll road and enter milling train, the blank that temperature cannot be met the requirements by
Kick waste-removing device kick it is useless.
Described to cut rear roller-way and hot sending insulating roller way is provided with insulation cover, the two sides of the insulation cover are equipped with burner.
As shown in Figure of description Fig. 1, slab is carried out using conticaster 1, new cooling jig is established in continuous casting process, adopts
Casting speed and temperature feedback value are acquired with intelligent controller, the intensity of cooling water is automatically controlled in conjunction with steel grade, to optimize spray
Water is 30-46m in continuous casting cooling water water distribution3When/t, there is no bleed-out risk not only, it is ensured that continuous casting billet is cut using hydraulic shear 2
Temperature is higher than 1050 DEG C afterwards, and dedicated enclosed insulating roller-way is entered after cutting, and i.e. cutting rear roller-way 3 does warming up treatment, by computer control
After auto-sequencing processed, by the time interval of steel rolling requirement, cooling bed roller 4 is successively moved quickly through, after being collected to turning roller-way 5, casting
Base collects for one stream, and turns round 90 °, enters hot sending insulating roller way 6 later, is sent to chain type machine for moving steel 9 after climbing, by thermometric
Computer automatic discrimination, the blank that temperature meets mill milling requirement is sent to mill front roll road 10 to enter by chain type machine for moving steel to be rolled
Machine, the blank that temperature cannot be met the requirements by rejection device 8 carry out inspection rejects, the time of delivery from continuous casting to milling train about 90 seconds, away from
From about 150m.
Slab is cut using hydraulic shear in embodiment, process about one second, at least 25 DEG C of temperature is reduced to slab
Degree loss needs 4min to reach scale position, no heat preservation from cut place on the steel billet of 12m under conditions of 3m/min pulling rate
In the case where measure, slab temperature probably declines 100 DEG C, effectively avoids roller-way from taking away slab temperature using insulating roller way, can
Before enough guaranteeing that continuous casting billet enters continuous casting cold bed, surface temperature is still at 1000 DEG C or more, moreover it is possible to the cleaning iron scale that can be convenient,
Do not influence maintenance observation, at the same be able to satisfy again open pour/finish up/artificial fire the processing space in special circumstances such as cuts.It can also basis
Situation in actual production is arranged between withdrawal straightening machine and hydraulic shear, between hydraulic shear and scale and on continuous casting conveyor roller
Online concurrent heating, concurrent heating length are adjusted flexibly according to actual needs.
Insulation cover two sides on heat preservation concurrent heating roller-way are equipped with burner, and burner uses natural gas Pure Oxygen Combustion Technology, has
High thermal efficiency, compact-sized advantage.Steel billet carries out heating in about 5 minutes in insulation cover, and heat penetration compensates for steel substantially
Base radiates the cryosphere to be formed.The steel billet temperature reached as needed, burner can carry out heat capacity adjusting in a certain range.
Combustion system is made of general pipeline valve group and every stream branch pipe valve group, and natural gas general pipeline valve group sets ball valve, pneumatic fast cut valve, oxygen general pipeline
Valve group sets stop valve special for oxygen, pneumatic fast cut valve, and the every stream branch pipe valve group of natural gas sets ball valve, electric control valve, fast cut valve group,
Flowmeter, the every stream branch pipe valve group of oxygen set stop valve special for oxygen, electric control valve, fast cut valve group, flowmeter.
Burner fuel is natural gas, is burnt with pure oxygen, using smoke backflow technology, burner is arranged between two roller-ways
Insulation cover side wall on, every group of 4 burners, wherein 2 burner flames are against blank upper surface, another 2 burner flames are against base
Expect lower surface.Because steel billet temperature is higher in insulation cover, Fire Radiation ability is restricted, this burner increases IMPULSIVE HEATING, greatly
Amplitude improves heat transfer efficiency.
The electric control valve set on every stream is for adjusting the concurrent heating amount for reaching needs, and according to set temperature, system is examined automatically
It surveys and adjusts control heating amount.
The present invention can also be designed as Multi-strand Continuous Casting and a plurality of straight rolling line according to actual needs, accomplish that any continuous casting is corresponding any
Automatic detection and ranking function is arranged in rolling line, and according to the position of every stream steel billet and temperature, automatic adjustment sequence hair steel is automatic real
Existing intelligent production.
Fuel, energy-saving and emission-reduction have been saved using direct-rolling process, while having improved overall economic benefit.
Upper described, only presently preferred embodiments of the present invention is not used to limit the scope of implementation of the present invention, Fan Yiben
Equivalent changes and modifications carried out by shape described in invention scope of the claims, construction, feature and spirit, should be included in this hair
In bright scope of the claims.
Claims (2)
1. a kind of Bar Wire Product is without heating furnace continuous casting direct-rolling process, characterized by the following steps: cast using conticaster
Base, continuous casting is cooling using intelligent controller acquisition Casting speed and temperature feedback value, and steel grade is combined to automatically control water-spraying control
Intensity does warming up treatment into rear roller-way is cut, adopts and computerized control after conticaster produces continuous casting billet using hydraulic shear cutting
After auto-sequencing, according to the time interval that steel rolling requires, cooling bed roller is successively moved quickly through, and be collected to turning roller-way, slab
Collect for one stream and turn round 90 °, enters hot sending insulating roller way later, by thermometric computer automatic discrimination, temperature meets milling train
The blank of rolling requirements, which from charging roller enters chain-type steel pulling machine and send to mill front roll road, enters milling train, and temperature cannot be met the requirements
Blank by kick waste-removing device kick it is useless.
2. Bar Wire Product according to claim 1 is without heating furnace continuous casting direct-rolling process, it is characterised in that: it is described cut rear roller-way and
Hot sending insulating roller way is provided with insulation cover, and the two sides of the insulation cover are equipped with burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607876.5A CN110421002A (en) | 2019-07-08 | 2019-07-08 | Bar Wire Product is without heating furnace continuous casting direct-rolling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607876.5A CN110421002A (en) | 2019-07-08 | 2019-07-08 | Bar Wire Product is without heating furnace continuous casting direct-rolling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110421002A true CN110421002A (en) | 2019-11-08 |
Family
ID=68410298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910607876.5A Pending CN110421002A (en) | 2019-07-08 | 2019-07-08 | Bar Wire Product is without heating furnace continuous casting direct-rolling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110421002A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845630A (en) * | 2020-12-31 | 2021-05-28 | 南京净环热冶金工程有限公司 | Online heat preservation and heat supplement method for continuous casting billet |
| 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 |
| CN114833202A (en) * | 2022-04-07 | 2022-08-02 | 中冶赛迪重庆信息技术有限公司 | Blank removing method, system, medium and electronic terminal for improving average temperature of direct rolling |
| CN115245957A (en) * | 2022-07-27 | 2022-10-28 | 重庆钢铁股份有限公司 | Method for effectively reducing energy consumption of double-high-bar direct rolling of 170-square 12m continuous casting billet |
| CN116371921A (en) * | 2023-04-04 | 2023-07-04 | 盐城市联鑫钢铁有限公司 | Method for realizing high-efficiency energy-saving continuous casting billet direct rolling |
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| CN206316142U (en) * | 2016-12-01 | 2017-07-11 | 上海亚新连铸技术工程有限公司 | A kind of short range is exempted to heat Direct Rolling control system |
| 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 |
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2019
- 2019-07-08 CN CN201910607876.5A patent/CN110421002A/en active Pending
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| EP0382702B1 (en) * | 1989-02-10 | 1997-04-09 | CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif | Method of manufacturing a thin steel slab by continuous casting |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845630A (en) * | 2020-12-31 | 2021-05-28 | 南京净环热冶金工程有限公司 | Online heat preservation and heat supplement method for continuous casting billet |
| CN114833202A (en) * | 2022-04-07 | 2022-08-02 | 中冶赛迪重庆信息技术有限公司 | Blank removing method, system, medium and electronic terminal for improving average temperature of direct rolling |
| CN114833202B (en) * | 2022-04-07 | 2024-04-12 | 中冶赛迪信息技术(重庆)有限公司 | Method, system, medium and electronic terminal for picking blanks to improve average temperature of straight rolling |
| 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 |
| CN115245957A (en) * | 2022-07-27 | 2022-10-28 | 重庆钢铁股份有限公司 | Method for effectively reducing energy consumption of double-high-bar direct rolling of 170-square 12m continuous casting billet |
| CN116371921A (en) * | 2023-04-04 | 2023-07-04 | 盐城市联鑫钢铁有限公司 | Method for realizing high-efficiency energy-saving continuous casting billet direct rolling |
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Application publication date: 20191108 |
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