CN111229829A - Full-multiple-length bar processing equipment and process - Google Patents
Full-multiple-length bar processing equipment and process Download PDFInfo
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- CN111229829A CN111229829A CN202010027045.3A CN202010027045A CN111229829A CN 111229829 A CN111229829 A CN 111229829A CN 202010027045 A CN202010027045 A CN 202010027045A CN 111229829 A CN111229829 A CN 111229829A
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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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to the technical field of metallurgy, and relates to bar full-length processing equipment and a bar full-length processing process. The upstream steelmaking and continuous casting unit comprises a continuous casting machine and corresponding auxiliary equipment. The blank weighing unit comprises a billet weighing device. The temperature control rolling forming unit comprises a continuous rolling unit, a temperature control device and shearing equipment which are sequentially arranged, and the flying shear unit comprises flying shear equipment. The finished product finishing processing unit comprises finishing processing equipment. The process steps are that the weight of the blank is adjusted through an upstream steel-making unit through feedback adjustment. The invention can improve the yield of bar production and increase enterprise benefits; the bar finishing and collecting system can be simplified, and the investment and operation cost is reduced; the finishing post can be cancelled, and the unmanned finishing area is realized; the method can meet the large-scale and large-batch requirements of bars; can meet the requirement of direct rolling.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and relates to bar full-scale processing equipment and a bar full-scale processing technology.
Background
The bar is the largest form of steel scale, and almost accounts for half-wall Jiangshan of steel production. The finished bar is straight in a delivery specified length state, and the length of the finished bar is generally 16m, 12m, 9m and other specifications.
When traditional rod material is rolled, the blank is the scale blank, leads to the bar total length that rolls out must not be the integral multiple of finished product scale. As shown in the following table:
as can be seen from the table, when the standard billet is produced to a size of 12m, short lengths of 5.38m, 5.36m, 6.39m, 7.88m, 10.34m, 4.17m and 1.34m are produced. In addition, the sizes of the blanks provided upstream have certain deviation (for example, the size of the blank is continuously changed due to gradual abrasion of a crystallizer in a continuous casting process along with the production), so that the number of the unfixed sizes of the finished products is more. The increase of the short ruler brought by production not only leads to the reduction of the production yield, but also can lead to the finishing and collection of the bars to be complicated, increase a large amount of manpower for processing and increase the enterprise cost.
In the prior art, in order to eliminate the short bars of the bars, some enterprises select a headless direct rolling technology, the technology realizes that a single-flow continuous casting billet is not cut, the single-flow continuous casting billet is directly fed into a bar mill for production, and the full-multiple-length bar production is realized. However, the technology has the important defects that single-flow continuous casting is needed for endless direct rolling, and the production scale and efficiency of single-flow continuous casting are low, so that the utilization rate of equipment is insufficient, the occupied field is too large, and the technology cannot be well adapted to the large-scale and large-batch steel market in China. Some enterprises adopt a welding endless rolling technology, the technology realizes multi-stream production continuous casting, a welding machine is adopted to splice blanks, and then the blanks are fed into a bar mill for production, so that the large-scale production of full-scale bars is realized. However, the important disadvantages of this technique are that the welding endless rolling cannot be directly rolled, and huge energy is wasted during welding, which consumes metal and reduces the yield.
On the premise of large-scale bar production, direct rolling can be realized, welding energy and metal consumption are not wasted, and short bars of the bars can be eliminated, so that the aim of continuous pursuit of bar production of iron and steel enterprises is fulfilled.
Disclosure of Invention
In view of the above, the present invention aims to provide a full-length bar processing apparatus and process, which implement full-length bar production without wasting welding energy and consuming metal under matching of multi-stream continuous casting and a bar, and are also suitable for a direct rolling process.
In order to achieve the purpose, the invention provides the following technical scheme:
a full multi-length bar processing device comprises an upstream steelmaking continuous casting unit, a blank weighing unit, a temperature control rolling forming unit, a flying shear unit and a finished product finishing processing unit which are sequentially arranged.
Optionally, the upstream steelmaking and continuous casting unit includes a continuous casting machine and corresponding auxiliary equipment.
Optionally, the number of the continuous casting machines and the corresponding auxiliary equipment is 1-15.
Optionally, the blank weighing unit comprises a weighing device.
Optionally, the number of the weighing devices is 1-15, and when the number of the weighing devices is larger than 1, the weighing devices are arranged in series or in parallel.
Optionally, the temperature-controlled rolling forming unit comprises a continuous rolling unit, a temperature control device and a shearing device which are sequentially arranged.
Optionally, the number of the temperature-controlled roll forming units is at least 1; the number of continuous rolling units is at least 1; the number of rolling mills in the continuous rolling mill set is 2-10; the number of the temperature control devices is 0-10; the number of the shearing devices is 0-10.
Optionally, the flying shear unit comprises a flying shear device; the number of flying shear devices is at least 1.
Optionally, the finished product finishing processing unit comprises finishing processing equipment; the finishing processing equipment is a cooling bed and a checking, bundling and collecting equipment.
A full-length processing technology for bars, which applies the full-length processing equipment for bars, comprises the following steps:
s1, measuring the weight of the blank produced by the upstream steelmaking continuous casting unit in a blank weighing unit, then rolling the blank in a temperature-controlled rolling forming unit, performing full-length shearing treatment on the formed rolled piece in a flying shear unit, and breaking short materials of the rolled piece in the flying shear unit;
s2, comparing the short-scale material information of the rolled piece with the weight data measured by the blank weighing unit, determining the required blank weight, and feeding back an adjusting signal to the upstream steelmaking continuous casting unit;
s3, the upstream steelmaking continuous casting unit adjusts the length of the cut blank, and the weight of the blank is controlled within the range of a full-multiple-length rolled piece;
s4, the upstream continuous casting unit device causes the size of the section of the billet to change, the real-time billet data is measured by the billet weighing unit and compared with the system data, the signal is simultaneously fed back to the upstream steelmaking continuous casting unit, and the upstream steelmaking continuous casting unit adjusts the length of the cut billet to meet the weight requirement.
The invention has the beneficial effects that:
1) the yield of bar production is improved, and the benefits of production enterprises are increased;
2) the bar finishing and collecting system is simplified, and the investment and operation cost is reduced;
3) a finishing post is cancelled, and unmanned finishing in a finishing area is realized;
4) the method is suitable for large-scale and large-batch requirements of bars;
5) is suitable for the requirement of direct rolling.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the arrangement of the present invention;
fig. 2 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the reference numbers in the figures refer to the following elements: the device comprises an upstream steelmaking continuous casting unit 1, a blank weighing unit 2, a temperature control rolling forming unit 3, a flying shear unit 4, a finished product finishing processing unit 5, a continuous casting machine 6, a weighing device 7, a continuous rolling unit 8, a temperature control device 9, a shearing device 10, a flying shear device 11, a finishing processing device 12, a parallel flow roller table 13, an inspection bundling and collecting device 14 and a cooling bed 15.
The invention relates to a full multi-length bar processing device which comprises an upstream steelmaking continuous casting unit 1, a blank weighing unit 2, a temperature control rolling forming unit 3, a flying shear unit 4 and a finished product finishing processing unit 5 which are sequentially arranged. The upstream steelmaking and continuous casting unit 1 comprises a continuous casting machine 6 and corresponding auxiliary equipment; the number of the continuous casting machines 6 and the corresponding auxiliary equipment is 1-15. The blank weighing unit 2 comprises a weighing device 7. The number of the weighing devices 7 is 1-15, and when the number of the weighing devices 7 is larger than 1, the weighing devices 7 are arranged in series or in parallel. The temperature control rolling forming unit 3 comprises a continuous rolling unit 8, a temperature control device 9 and a shearing device 10 which are sequentially arranged. The number of the temperature control rolling forming units 3 is at least 1; the number of the continuous rolling units 8 is at least 1; the number of rolling mills in the continuous rolling unit 8 is 2-10; the number of the temperature control devices 9 is 0-10; the number of the shearing devices 10 is 0-10. The flying shear unit 4 includes a flying shear apparatus 11; the number of flying shear devices 11 is at least 1. The finishing processing unit 5 includes a finishing processing apparatus 12; the finishing processing apparatus 12 is a cooling bed 15 and an inspection bundling and collecting apparatus 14.
The invention also relates to a bar full-scale processing technology, which applies the bar full-scale processing equipment and comprises the following steps:
s1 weight measurement is carried out on the blank produced by the upstream steelmaking continuous casting unit 1 in the blank weighing unit 2, then the blank is rolled in the temperature-controlled roll forming unit 3, the finally formed rolled piece is subjected to full-length shearing treatment in the flying shear unit 4, and the short length material of the rolled piece is broken in the flying shear unit 4.
S2, comparing the short-length material information of the rolled piece with the weight data measured by the blank weighing unit 2, determining the required blank weight, and feeding back an adjusting signal to the upstream steelmaking continuous casting unit 1.
And S3, the upstream steelmaking continuous casting unit 1 adjusts the length of the cut blank according to the weight requirement, and controls the blank weight in the range of full-scale rolled pieces. At the moment, the adjusted blank production rolled piece is full-length, and no short length is generated.
S4, the upstream continuous casting unit equipment causes the size of the section of the billet to change, the real-time billet data is measured by the billet weighing unit 2 and compared with the system data, the signal is simultaneously fed back to the upstream steelmaking continuous casting unit 1, and the upstream steelmaking continuous casting unit 1 can adjust the length of the cut billet to meet the weight requirement.
One embodiment of the present invention is as follows:
the device is provided with 1 upstream steelmaking continuous casting unit 1 which comprises 1 set of 3 machines and 3 continuous casting machines 6, each machine is provided with a shearing system, and a parallel flow roller way 13 is arranged behind the shearing system.
Thereafter 1 blank weighing unit 2 is arranged, which comprises 1 set of weighing devices 7.
And 4 temperature-controlled rolling forming units 3 are sequentially arranged behind the rolling forming unit. The 1 st temperature control rolling forming unit 3.1 comprises 1 set of continuous rolling unit 8 and 1 set of shearing equipment 10 which are sequentially arranged, and the number of rolling mills of the continuous rolling unit 8 is 6. The 2 nd temperature control rolling forming unit 3.2 comprises 1 set of continuous rolling unit 8 and 1 set of shearing equipment 10 which are sequentially arranged, and the number of rolling mills of the continuous rolling unit 8 is 6. The 3 rd temperature control rolling forming unit 3.3 comprises 1 set of continuous rolling unit 8, 1 set of temperature control device 9 and 1 set of shearing equipment 10, and the number of rolling mills of the continuous rolling unit 8 is 4. The 4 th temperature-control rolling forming unit 3.4 comprises 1 set of continuous rolling unit 8 and 1 set of temperature control device 9, and the number of rolling mills of the continuous rolling unit 8 is 6.
Thereafter, 1 flying shear unit 4 is provided, which contains 2 sets of flying shear devices 11.
Finally, 1 finishing unit 5 is provided, which contains 1 finishing apparatus 12. The finishing processing equipment 12 is a tail clamping automatic steel feeding device, a cooling bed 15 and an inspection bundling and collecting equipment 14.
The 165mm section blank of this embodiment produces phi 12mm rolled piece, and its process steps are as follows:
1) the 3-machine 3-strand continuous casting machine 6 in the upstream steelmaking continuous casting unit 1 adopts a step-shaped mode to produce 165mm × 165mm square billets, and the casting speed of each strand is 3.74 m/min. The shearing length of the square billet is 11600 mm.
2) After the 5-flow square billet passage is combined into the 1-flow passage, the blank sequentially enters the blank weighing unit 2, and the weighing data of the first blank is 2448 kg.
3) And then the square billet enters 4 temperature control rolling forming units 3 which are arranged in sequence for temperature control rolling deformation. Finally rolling into the specification of phi 12 mm.
4) The finished product specification phi 12mm enters a flying shear unit 4, the first flying shear device 11 shears the finished product to 109.4m (length of multiple length of 9 m), and after 25 times of length of the finished product is sheared, the final short length is 0.63 m. The 0.63m short length is chopped using a second flying shear device 11.
5) The short ruler data is compared with 2448kg of blank weighing data, and the weight of the short ruler is 1.042kg through system conversion, and the length of the blank corresponding to 165mm multiplied by 165mm is 2.7 mm.
6) The system feeds back the 2.7mm signal requirement of billet adjustment to the upstream steelmaking continuous casting unit 1. The shearing system in the unit was adjusted to control the length of the subsequent billet to 11597.3mm and the billet weight to 2446.958 kg.
7) Along with the continuous casting time, the continuous casting machine 6 can be worn, the section size of the blank can be changed, then the blank weighing unit 2 measures real-time blank data, the real-time blank data is compared with system data, the signal is simultaneously fed back to the upstream steelmaking continuous casting unit 1, and the upstream steelmaking continuous casting unit 1 can adjust the length of the cut blank to meet the weight requirement.
The process is repeated until the production is finished, and the whole full-multiple-length bar production is realized.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The full multi-length bar processing equipment is characterized by comprising an upstream steelmaking continuous casting unit, a blank weighing unit, a temperature control rolling forming unit, a flying shear unit and a finished product finishing processing unit which are sequentially arranged.
2. The full-length bar processing apparatus of claim 1, wherein said upstream steelmaking continuous casting unit includes a continuous caster and associated ancillary equipment.
3. The full-length bar processing equipment of claim 2, wherein the number of the continuous casting machines and the corresponding auxiliary equipment is 1 to 15.
4. A full-length bar processing apparatus according to claim 1, wherein the blank weighing unit comprises a weighing apparatus.
5. The full-length bar processing equipment according to claim 4, wherein the number of the weighing devices is 1-15, and when the number of the weighing devices is more than 1, the weighing devices are arranged in series or in parallel.
6. The full-length bar processing equipment of claim 1, wherein the temperature-controlled roll-forming unit comprises a continuous rolling mill set, a temperature control device and a shearing device which are arranged in sequence.
7. The full-length bar processing apparatus of claim 6 wherein the number of temperature controlled roll-forming units is at least 1; the number of continuous rolling units is at least 1; the number of rolling mills in the continuous rolling mill set is 2-10; the number of the temperature control devices is 0-10; the number of the shearing devices is 0-10.
8. The full-scale bar processing apparatus according to claim 1, wherein the flying shear unit includes a flying shear apparatus; the number of flying shear devices is at least 1.
9. The full-scale processing apparatus for bars according to claim 1, wherein the finishing processing unit comprises a finishing processing apparatus; the finishing processing equipment is a cooling bed and a checking, bundling and collecting equipment.
10. A full-length processing process of bars, which applies the full-length processing equipment of the bars as claimed in any one of claims 1 to 9, and comprises the following steps:
s1, measuring the weight of the blank produced by the upstream steelmaking continuous casting unit in a blank weighing unit, then rolling the blank in a temperature-controlled rolling forming unit, performing full-length shearing treatment on the formed rolled piece in a flying shear unit, and breaking short materials of the rolled piece in the flying shear unit;
s2, comparing the short-scale material information of the rolled piece with the weight data measured by the blank weighing unit, determining the required blank weight, and feeding back an adjusting signal to the upstream steelmaking continuous casting unit;
s3, the upstream steelmaking continuous casting unit adjusts the length of the cut blank, and the weight of the blank is controlled within the range of a full-multiple-length rolled piece;
s4, the upstream continuous casting unit device causes the size of the section of the billet to change, the real-time billet data is measured by the billet weighing unit and compared with the system data, the signal is simultaneously fed back to the upstream steelmaking continuous casting unit, and the upstream steelmaking continuous casting unit adjusts the length of the cut billet to meet the weight requirement.
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| CN202010027045.3A CN111229829B (en) | 2020-01-10 | 2020-01-10 | Full-multiple-length bar processing equipment and process |
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| CN202010027045.3A CN111229829B (en) | 2020-01-10 | 2020-01-10 | Full-multiple-length bar processing equipment and process |
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Cited By (3)
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| CN113083906A (en) * | 2021-02-22 | 2021-07-09 | 阳春新钢铁有限责任公司 | Production control method for reducing deformed steel bar detection waste |
| CN113426840A (en) * | 2021-07-16 | 2021-09-24 | 北京佰能盈天科技股份有限公司 | Negative tolerance rolling and short rule control method for bar production line |
| CN116921446A (en) * | 2023-09-18 | 2023-10-24 | 陕西钢铁集团有限公司 | Method for full length and fast adjusting steel billet between steel making and rolling based on direct rolling |
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| CN113083906A (en) * | 2021-02-22 | 2021-07-09 | 阳春新钢铁有限责任公司 | Production control method for reducing deformed steel bar detection waste |
| CN113426840A (en) * | 2021-07-16 | 2021-09-24 | 北京佰能盈天科技股份有限公司 | Negative tolerance rolling and short rule control method for bar production line |
| CN116921446A (en) * | 2023-09-18 | 2023-10-24 | 陕西钢铁集团有限公司 | Method for full length and fast adjusting steel billet between steel making and rolling based on direct rolling |
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| CN111229829B (en) | 2022-04-12 |
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