CN109663809A - Large-scale and ultra-large H-beam rolling mill practice - Google Patents
Large-scale and ultra-large H-beam rolling mill practice Download PDFInfo
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- CN109663809A CN109663809A CN201811554131.9A CN201811554131A CN109663809A CN 109663809 A CN109663809 A CN 109663809A CN 201811554131 A CN201811554131 A CN 201811554131A CN 109663809 A CN109663809 A CN 109663809A
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Classifications
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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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/30—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 plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a kind of large-scale and ultra-large H-beam rolling mill practice.The present invention is suitable for large-scale and ultra-large H-beam continuous rolling production line, it can be achieved that the reversible cogging of heavy reduction of the CMA universal mill of common reversible cogging and big H profile steel reduces equipment gross investment to reduce mm finishing mill unit quantity.
Description
Technical field
The present invention relates to a kind of rolling mill practices of Large Steel, more particularly, to a kind of large-scale and ultra-large H-beam rolling
Technique.
Background technique
In recent years, as control of the country to the energy-saving and emission-reduction of steel industry constantly increases, steel industry is produced
Very big impact is given birth to, some medium and small section steel works are closed one after another, and the requirement to newly-built steel mill is higher and higher, and steel mill starts one after another
Some high value-added products.Steel sheet pile and H profile steel are more nearly weighed as high value-added product in steel products, by steel mill
Depending on start steel sheet pile and H profile steel production line one after another, to rolled steel sheet pile and H profile steel.Small dimension H profile steel rolls in tradition
In system, a frame or two frame two-roller reversible milling trains or three roll reversing roller coggings are mostly used, are connected with 7-8 frame finish rolling universal mill
The semi-tandem rolling form of continuous rolling.Steel sheet pile mostly uses duo mill to carry out continuous rolling because of its section asymmetry.Newest steel plate
Stake rolling mill practice uses fashioned iron CMA universal mill technique for continuous rolling, is configured to two frame two-roller reversible blooming mills (i.e. BD machine),
Semi-tandem rolling form with 7 frame CMA universal mill continuous rollings breaches common in the world " three rack reversible rolling technique "
Limitation solves the technique of compound section rolling, solves the problems, such as that rolling temperature drop is excessive, realizes energy conservation, efficiently and stablizes
Production.But in large-scale and supertype H profile steel production, need using two frame two-roller reversible blooming mills, it is omnipotent with 10-12 frame CMA
Semi-tandem rolling form of the milling train as the continuous rolling of finish rolling is just able to satisfy large-scale and ultra-large H-beam rolling requirements, finishing mill
The increase of group quantity, causes equipment gross investment to increase.It is raw in the continuous rolling of the fashioned iron CMA universal mill of main rolled steel sheet pile
In producing line, using two frame two-roller reversible blooming mills, the semi-tandem rolling form with 7 frame finish rolling CMA universal mill continuous rollings, it is desirable to same
When rolling it is large-scale and ultra-large H-beam is preferably met the market requirement, while reducing equipment gross investment with the total class of product is increased
Requirement just at important problem urgently to be resolved.
Summary of the invention
In view of this, the present invention is intended to provide a kind of large-scale and ultra-large H-beam rolling mill practice, is satisfaction in Large Steel
On sheet pile CMA universal mill continuous rolling production line, large-scale and ultra-large H-beam requirement can be rolled simultaneously, makes the gross investment of rolling line
Reduce.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of large-scale and ultra-large H-beam rolling mill practice, includes the following steps:
Step A, cold continuous casting billet are sent to feeding skid from raw material storage and are sent to heating furnace charging roller through rack；
Step B, the steel billet heated are come out of the stove by material machine, are sent to high pressure water dephosphorizing machine through furnace delivery table, dephosphorization roller-way and are removed
Remove the raw iron scale of the furnace generated in heating process；
Step C, steel billet is sent to BD two-roller reversible milling train by roller-way, the omnipotent reversable mill of BDU carries out reversible roughing system respectively；
Step D, the intermediate base shut out are sent to mm finishing mill unit and carry out continuous rolling, shut out technique and wanted after hot saw sliced-head
The hot finished product asked, mm finishing mill unit is equipped with 7-8 frame finishing mill；
Step E is sent to cold bed cooling by finish rolling runout table, after straightener is aligned, transports and carries out on marshalling rack
Marshalling, by cold sawing machine, crop end and scale, the scale finished product after sawing are sent to code by roller-way to the groups of rolled piece after marshalling in groups
Stack machine carries out stacking, and the bundled rolled piece after stacking carries out hand press-packing on being packaged roller-way and then is sent to finished product collection by roller-way
Rack is collected, and by finished product across traveling crane be transported into library.
Further, the omnipotent reversable mill of the BDU is the convertible roughing mill of universal mill/duo mill, using two roller dies
Formula rolled steel sheet pile product, using omnipotent mode rolled h-section steel beam product.
Further, the front and back roller-way of the BD two-roller reversible milling train has the function of the double steel rolling on edge to blank.
Further, rear several second rolling mills of the mm finishing mill unit are two roller edging mills, remaining milling train is CMA universal mill
Form arrangement.
Further, the mm finishing mill unit is in addition to rear several second rolling mills are two roller edging mills, remaining CMA universal mill
By flexibly in universal mill and duo mill in the form of in change, to meet the rolling mill practice needs of each product.
Compared with the existing technology, a kind of large-scale and ultra-large H-beam rolling mill practice of the present invention, has with following
Beneficial effect: on the continuous rolling production line for not only overcoming main rolling large scale steel stake, while rolling large-scale and ultra-large H-beam need to
Add standby disadvantage；Make mainly to roll large scale steel stake continuous rolling production line can while not increasing equipment, meet it is large-scale and
The tandem rolling requirement of ultra-large H-beam, rolling mill practice is flexible, and reduces equipment gross investment.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the milling train arrangement schematic diagram of roll line of the present invention；
Fig. 2 is milling train arrangement schematic diagram of the present invention to Z-shape steel sheet pile continuous rolling；
Fig. 3 is milling train arrangement schematic diagram of the present invention to large H-shaped steel continuous rolling；
Description of symbols:
1-BD two-roller reversible milling train；The omnipotent reversable mill of 2-BDU；3- mm finishing mill unit.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-3, using the first rolling mill for BD two-roller reversible milling train on large-scale CMA universal rolling production line
1, the second rolling mill is the omnipotent reversible blooming mill (i.e. the omnipotent reversable mill 2 of BDU) of heavy reduction CMA, and mm finishing mill unit 3 matches 7-8 frame
The semi-tandem rolling form of the continuous rolling of finishing mill.Wherein rear several second rolling mills of mm finishing mill unit 3 are two roller edging mills, remaining is rolled
Machine is CMA universal mill form arrangement.It can be required according to the H profile steel technique of different size, in the omnipotent form of CMA universal mill
It converts in two roll forms, is wanted with meeting on large scale steel stake production line while rolling large-scale and ultra-large H-beam technique
It asks.
A kind of large-scale and ultra-large H-beam rolling mill practice, includes the following steps:
Step A, cold continuous casting billet are sent to feeding skid from raw material storage and are sent to heating furnace charging roller through rack；
Step B, the steel billet heated are come out of the stove by material machine, are sent to high pressure water dephosphorizing machine through furnace delivery table, dephosphorization roller-way and are removed
Remove the raw iron scale of the furnace generated in heating process；
Step C, steel billet are sent to the omnipotent reversable mill 2 of BD two-roller reversible milling train 1, BDU by roller-way and carry out reversible roughing respectively
System；The front and back roller-way of BD two-roller reversible milling train 1 has the function of the double steel rolling on edge to blank.
Step D, the intermediate base shut out are sent to mm finishing mill unit 3 and carry out continuous rolling, shut out technique and wanted after hot saw sliced-head
The hot finished product asked；
Step E is sent to cold bed cooling by finish rolling runout table, after straightener is aligned, transports and carries out on marshalling rack
Marshalling, by cold sawing machine, crop end and scale, the scale finished product after sawing are sent to code by roller-way to the groups of rolled piece after marshalling in groups
Stack machine carries out stacking, and the bundled rolled piece after stacking carries out hand press-packing on being packaged roller-way and then is sent to finished product collection by roller-way
Rack is collected, and by finished product across traveling crane be transported into library.
The omnipotent reversable mill 2 of BDU is the convertible roughing mill of universal mill/duo mill, is rolled using two roller die formulas
Steel sheet pile product, using omnipotent mode rolled h-section steel beam product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of large-scale and ultra-large H-beam rolling mill practice, characterized by the following steps:
Step A, cold continuous casting billet are sent to feeding skid from raw material storage and are sent to heating furnace charging roller through rack；
Step B, the steel billet heated are come out of the stove by material machine, are sent to the removing of high pressure water dephosphorizing machine through furnace delivery table, dephosphorization roller-way and are added
The raw iron scale of the furnace generated in thermal process；
Step C, steel billet is sent to BD two-roller reversible milling train (1) by roller-way, the omnipotent reversable mill of BDU (2) carries out reversible roughing respectively
System；
Step D, the intermediate base shut out are sent to mm finishing mill unit (3) and carry out continuous rolling, shut out required by technique after hot saw sliced-head
Hot finished product, mm finishing mill unit (3) is equipped with 7-8 frame finishing mill；
Step E is sent to cold bed cooling by finish rolling runout table, after straightener is aligned, transports and is organized into groups on marshalling rack,
Groups of rolled piece after marshalling by cold sawing machine crop end and scale in groups, scale finished product after sawing by roller-way be sent to stacking machine into
Row stacking, bundled rolled piece after stacking carried out on being packaged roller-way hand press-packing, then by roller-way be sent to finished product collecting frame into
Row collect, and by finished product across traveling crane be transported into library.
2. large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: the BDU is omnipotent can
Inverse milling train (2) are the convertible roughing mill of universal mill/duo mill, and using two roller die formula rolled steel sheet pile products, use is omnipotent
Mode rolled h-section steel beam product.
3. large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: bis- roller of BD can
The front and back roller-way of inverse milling train (1) has the function of the double steel rolling on edge to blank.
4. large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: the mm finishing mill unit
(3) rear several second rolling mills are two roller edging mills, remaining milling train is CMA universal mill form arrangement.
5. large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: the mm finishing mill unit
(3) in addition to rear several second rolling mills are two roller edging mills, remaining CMA universal mill can be flexibly in universal mill and two rollers
Change in milling train form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554131.9A CN109663809A (en) | 2018-12-18 | 2018-12-18 | Large-scale and ultra-large H-beam rolling mill practice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554131.9A CN109663809A (en) | 2018-12-18 | 2018-12-18 | Large-scale and ultra-large H-beam rolling mill practice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109663809A true CN109663809A (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811554131.9A Pending CN109663809A (en) | 2018-12-18 | 2018-12-18 | Large-scale and ultra-large H-beam rolling mill practice |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814024A (en) * | 2019-11-13 | 2020-02-21 | 天津市中重科技工程有限公司 | Medium-large H-shaped steel multi-frame high-rhythm reversible rolling process |
| CN111468911A (en) * | 2020-04-07 | 2020-07-31 | 中冶东方工程技术有限公司 | Steel rail finishing method and production line |
| CN112756692A (en) * | 2020-12-25 | 2021-05-07 | 天津市中重科技工程有限公司 | Cold sawing process for section steel |
| CN114888077A (en) * | 2022-04-29 | 2022-08-12 | 中冶华天工程技术有限公司 | Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814024A (en) * | 2019-11-13 | 2020-02-21 | 天津市中重科技工程有限公司 | Medium-large H-shaped steel multi-frame high-rhythm reversible rolling process |
| CN111468911A (en) * | 2020-04-07 | 2020-07-31 | 中冶东方工程技术有限公司 | Steel rail finishing method and production line |
| CN112756692A (en) * | 2020-12-25 | 2021-05-07 | 天津市中重科技工程有限公司 | Cold sawing process for section steel |
| CN114888077A (en) * | 2022-04-29 | 2022-08-12 | 中冶华天工程技术有限公司 | Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile |
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Application publication date: 20190423 |