CN109290369A - A kind of large-scale and ultra-large H-beam rolling mill practice - Google Patents
A kind of large-scale and ultra-large H-beam rolling mill practice Download PDFInfo
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- CN109290369A CN109290369A CN201811133225.9A CN201811133225A CN109290369A CN 109290369 A CN109290369 A CN 109290369A CN 201811133225 A CN201811133225 A CN 201811133225A CN 109290369 A CN109290369 A CN 109290369A
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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
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Abstract
The present invention provides a kind of large-scale and ultra-large H-beam rolling mill practices, and comprise the technical steps that: steel billet carries out the rolling of 3 or 5 reciprocal passages at the blooming mill in roughing area；In reversible finish rolling area, three frame finish rolling universal mills and a frame finish rolling edging mill are set；Above-mentioned steel billet is subjected to rolling 3 or 5 reciprocal passes in reversible finish rolling area；Three frame finish rolling universal mills and a frame finish rolling edging mill are arranged in tandem rolling finish rolling area；By steel billet transportation to tandem rolling finish rolling area, by a 4 rack tandem rollings, output finished product.Reversible rolling and tandem rolling are incorporated into integrated production line, can reduce the passage of roughing cogging reversible rolling by the rolling mill practice that the invention provides, and reduce the reciprocal time of the reversible place's rolling of finish rolling.By reasonably arranging the reciprocal time and tandem mill quantity of roughing mill reversible rolling passage, finish rolling reversible rolling, fashioned iron yield can greatly improve.
Description
Technical field
The invention belongs to Rolling production equipment and Bar Rolling Process field, more particularly, to a kind of large-scale and super large
Type H profile steel rolling mill practice.
Background technique
It is continued to increase recently as demand of the country for H profile steel, increases the market added value of H profile steel.Promote
Have and goes up H profile steel production line more consideration is given to new when steel rolling project in the steel mill of steel production capacity.H profile steel production line is rough to be divided into
Large size/ultra-large type production line, medium-sized production line, Minifab.Region one is rolled for large size/ultra-large type production line at home
As all using the external 1+3 arrangement technology introduced, 1+3 arrangement technology is a frame blooming mill, and three frame finishing mills are back and forth to roll
System.Wherein one frame of centre of three frame finishing mills is edging mill, and two sides are universal mill.For the rolling of H profile steel, edging mill
Only to being rolled at the top and bottom of the edge of a wing of H profile steel, not calculated when calculating rolling pass.
In steel rolling, the arrangement technology of 1+3 needs back and forth to roll 7 passages in blooming mill, and conventional products need 7 in finish rolling
Secondary reciprocal rolling large-size even needs 9 reciprocal rollings.Time-consuming very long, time-consuming lengthens it is followed by that the meeting of steel billet temperature drop
It is very big.And steel billet temperature drop will lead to greatly in the case where identical drafts, roll-force increases, and just will increase energy consumption accordingly, increases
Add rolling pass.It is little for H profile steel product consumption a few years ago, and added value of product very high period can satisfy life
It produces and uses, guarantee with profit.But in recent years with H profile steel demand increase, while the added value of steel products do not have it is more preceding
Year is so high, and requirement of the steel mill for yield will be higher and higher.Continue to break through original production line production restriction, it is energy-saving,
Improve firms profitability.
Summary of the invention
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, propose a kind of large-scale and super
Large H-shaped steel rolling technique.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of large-scale and ultra-large H-beam rolling mill practice, by production line be sequentially disposed in roughing area, reversible finish rolling area and
Tandem rolling finish rolling area, comprises the technical steps that:
1) steel billet carries out the rolling of 3 or 5 reciprocal passages at the blooming mill in roughing area；
2) three frame finish rolling universal mills and a frame finish rolling edging mill are set in reversible finish rolling area；By above-mentioned steel billet in reversible essence
It rolls area and carries out rolling 3 or 5 reciprocal passes；
3) three frame finish rolling universal mills and a frame finish rolling edging mill are arranged in tandem rolling finish rolling area；By above-mentioned steel billet transportation to even
Finish rolling area is rolled, by a 4 rack tandem rollings, output finished product；In the unit work in tandem rolling finish rolling area, the unit in reversible finish rolling area
It can carry out the rolling of next blank.
Further, the steel billet in step 1) is introduced into dephosphorizing machine dephosphorization after heating stove heating.
Further, above-mentioned reversible finish rolling area is identical as the milling train in tandem rolling finish rolling area, and roller system spare part is interchangeable.
Further, when carrying out small dimension billet rolling, 3 reciprocal, reversible finish rolling is carried out at the blooming mill in roughing area
Area carries out 3 reciprocal passages of rolling, and rolling finishing mill carries out 4 rack tandem rollings.
Further, carry out big specification rolling when, is carried out at the blooming mill in roughing area 5 times back and forth, reversible finish rolling area into
Row 5 reciprocal passages of rolling, rolling finishing mill carry out 4 rack tandem rollings.
Compared with the existing technology, the invention has the advantage that
Reversible rolling and tandem rolling are incorporated into integrated production line, can reduce roughing and open by rolling mill practice provided by the invention
The passage of base reversible rolling reduces the reciprocal time of the reversible place's rolling of finish rolling.By reasonably arranging roughing mill reversible rolling road
Secondary, finish rolling reversible rolling reciprocal time and tandem mill quantity, can greatly improve fashioned iron yield.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is milling equipment arrangement schematic diagram in the invention.
In figure: 1- blooming mill；2- finish rolling universal mill；3- finish rolling edging mill.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the 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 the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Below with reference to embodiment come the present invention will be described in detail create.
A kind of large-scale and ultra-large H-beam rolling mill practice, by production line be sequentially disposed in roughing area, reversible finish rolling area and
Tandem rolling finish rolling area, comprises the technical steps that:
Steel billet carries out the rolling of 3 or 5 reciprocal passages at the blooming mill 1 in roughing area；Then steel billet is transported to reversible
Finish rolling area；
In reversible finish rolling area, three frame finish rolling universal mills 2 and a frame finish rolling edging mill 3 are set；By above-mentioned steel billet in reversible essence
It rolls area and carries out rolling 3 or 5 reciprocal passes；
Three frame finish rolling universal mills 2 and a frame finish rolling edging mill 3 are arranged in tandem rolling finish rolling area；By above-mentioned steel billet transportation to even
After rolling finish rolling area, by a 4 rack tandem rollings, output finished product；In the unit work in tandem rolling finish rolling area, the machine in reversible finish rolling area
Group can carry out the rolling of next blank.
Wherein, the steel billet in step 1) is introduced into dephosphorizing machine dephosphorization after heating stove heating.
Above-mentioned reversible finish rolling area is identical as the milling train in tandem rolling finish rolling area, and roller system spare part is interchangeable.Interchangeability is good, maintenance and
Easy to maintain, use cost is also relatively low.
It should be noted that under normal conditions, reversible rolling is necessary for the reciprocal passage of singular number, when reversible finish rolling is rolled
When passage processed needs that finished product can be rolled out 4 times or 6 times, then 4 times or 6 times rollings must be become to 5 times or 7 times reciprocal rollings,
It wastes time very much.Therefore, in the present invention, 4 rack tandem rollings are followed by reversible finish rolling, 4 can be directly over by meeting above situation
Rack tandem rolling.Meanwhile in rolling finishing mill work, reversing finishing mill group can also carry out the rolling of next blank, and raising is rolled
Rhythm processed.By finally arranging 4 rack rolling finishing mills, the production technology of the entire production line can be made to become very flexibly, conveniently
Production.
When carrying out small dimension billet rolling, 3 times are carried out at the blooming mill in roughing area back and forth, reversible finish rolling area is rolled
3 reciprocal passages are made, rolling finishing mill carries out 4 rack tandem rollings.In fact, have passed through 3+3*3+3=15 passage altogether, (edging mill rolls
System is not counted in rolling pass).And when for traditional 1+3 arrangement rolling mill practice rolling small dimension product, then it needs in blooming mill
(1) 5 reciprocal passages are carried out at, then carry out 5 reciprocal rollings in reversible finish rolling area.It has passed through 5+2*5=15 passage altogether (to roll
Machine rolling in side is not counted in rolling pass).
When carrying out the rolling of big specification, 5 times are carried out at the blooming mill in roughing area back and forth, reversible finish rolling area carries out rolling 5
A reciprocal passage, rolling finishing mill carry out 4 rack tandem rollings.Have passed through 5+5*3+3=23 passage altogether, (edging mill rolling, which is not counted in, rolls
Passage processed).And when arranging rolling mill practice rolling large-size product for traditional 1+3, then it needs to carry out 7 at blooming mill (1)
A reciprocal passage then carries out 9 reciprocal passages in reversible finish rolling area.Have passed through 7+2*9=25 passage altogether, (edging mill rolls not
It is included in rolling pass).
As known from the above, in the similar situation of rolling pass, in the present invention, the number that milling train is back and forth rolled is significantly
It reduces on ground.Reduce reciprocal time to be equivalent to reduce a billet rolling to improve production at the time required for finished product
The yield of line.Because rolling time is reduced, temperature drop of the steel billet in rolling is reduced, and the drafts of milling train per pass can add
Greatly, pressure passage can also be reduced.Because temperature drop is reduced, the reduction of rolling pass, additionally it is possible to reduce the load of motor, reduce energy
Consumption.
In the present invention, uses 1+4+4 and arrange rolling mill practice, which carries out reversible rolling by a frame blooming mill, then
Four frame finishing mills are back and forth rolled (wherein frame second from the bottom is edging mill), and then four frame finishing mills carry out continuous rolling (its
In frame second from the bottom be edging mill).The limitation for breaching original Large Steel production line output, reduces the energy in production process
Consumption, improves the income of enterprise.
The present invention is improved rolling rhythm, is greatlyd improve by reduction roughing mill and the reciprocal passage of reversing finishing mill group
Large size/ultra-large type production line yield effectively lowers the temperature drop in rolling process, to reduce energy consumption, improves enterprise profit.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (5)
1. a kind of large-scale and ultra-large H-beam rolling mill practice, which is characterized in that production line is sequentially disposed in roughing area, reversible
Finish rolling area and tandem rolling finish rolling area, comprise the technical steps that:
1) steel billet carries out the rolling of 3 or 5 reciprocal passages at the blooming mill in roughing area；
2) three frame finish rolling universal mills and a frame finish rolling edging mill are set in reversible finish rolling area；By above-mentioned steel billet in reversible finish rolling area
Carry out rolling 3 or 5 reciprocal passes；
3) three frame finish rolling universal mills and a frame finish rolling edging mill are arranged in tandem rolling finish rolling area；By above-mentioned steel billet transportation to tandem rolling essence
Area is rolled, by a 4 rack tandem rollings, output finished product；In the unit work in tandem rolling finish rolling area, the unit in reversible finish rolling area can be into
The rolling of next blank of row.
2. a kind of large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: in step 1)
Steel billet is introduced into dephosphorizing machine dephosphorization after heating stove heating.
3. a kind of large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: above-mentioned reversible essence
It is identical as the milling train in tandem rolling finish rolling area to roll area, roller system spare part is interchangeable.
4. a kind of large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: carrying out small rule
When lattice billet rolling, 3 times are carried out at the blooming mill in roughing area back and forth, reversible finish rolling area carries out 3 reciprocal passages of rolling, tandem rolling
Finishing mill carries out 4 rack tandem rollings.
5. a kind of large-scale and ultra-large H-beam rolling mill practice according to claim 1, it is characterised in that: advised greatly
When lattice roll, 5 times are carried out at the blooming mill in roughing area back and forth, reversible finish rolling area carries out 5 reciprocal passages of rolling, tandem rolling finish rolling
Machine carries out 4 rack tandem rollings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133225.9A CN109290369A (en) | 2018-09-27 | 2018-09-27 | A kind of large-scale and ultra-large H-beam rolling mill practice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133225.9A CN109290369A (en) | 2018-09-27 | 2018-09-27 | A kind of large-scale and ultra-large H-beam rolling mill practice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109290369A true CN109290369A (en) | 2019-02-01 |
Family
ID=65164778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133225.9A Pending CN109290369A (en) | 2018-09-27 | 2018-09-27 | A kind of large-scale and ultra-large H-beam rolling mill practice |
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| CN (1) | CN109290369A (en) |
Citations (9)
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|---|---|---|---|---|
| JPS63256201A (en) * | 1987-04-13 | 1988-10-24 | Sumitomo Metal Ind Ltd | Manufacture of rolled h-shape steel |
| CN102247981A (en) * | 2011-06-01 | 2011-11-23 | 中冶赛迪工程技术股份有限公司 | Structural steel rolling production line and production process thereof |
| CN102284492A (en) * | 2011-08-15 | 2011-12-21 | 郎佃富 | Hot rolling H-beam steel finishing roll opening and hot pressing H-beam steel processing technology |
| CN102921722A (en) * | 2012-11-13 | 2013-02-13 | 莱芜钢铁集团有限公司 | H-shaped steel rolling equipment and method |
| CN103658167A (en) * | 2013-12-03 | 2014-03-26 | 中冶赛迪工程技术股份有限公司 | Combined universal rolling production line and production method of profile steels |
| CN205673363U (en) * | 2016-03-29 | 2016-11-09 | 中冶华天南京工程技术有限公司 | Big H profile steel mm finishing mill unit and heavy H-steel rolling mill system |
| JP2017170468A (en) * | 2016-03-23 | 2017-09-28 | 新日鐵住金株式会社 | Molding caliber and manufacturing method of h-shaped steel |
| CN206936012U (en) * | 2017-06-27 | 2018-01-30 | 中冶华天工程技术有限公司 | Heavy section steel rolled steel production system |
| CN108393368A (en) * | 2018-03-28 | 2018-08-14 | 徐州东鑫铸造有限公司 | A kind of H profile steel production technology |
-
2018
- 2018-09-27 CN CN201811133225.9A patent/CN109290369A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256201A (en) * | 1987-04-13 | 1988-10-24 | Sumitomo Metal Ind Ltd | Manufacture of rolled h-shape steel |
| CN102247981A (en) * | 2011-06-01 | 2011-11-23 | 中冶赛迪工程技术股份有限公司 | Structural steel rolling production line and production process thereof |
| CN102284492A (en) * | 2011-08-15 | 2011-12-21 | 郎佃富 | Hot rolling H-beam steel finishing roll opening and hot pressing H-beam steel processing technology |
| CN102921722A (en) * | 2012-11-13 | 2013-02-13 | 莱芜钢铁集团有限公司 | H-shaped steel rolling equipment and method |
| CN103658167A (en) * | 2013-12-03 | 2014-03-26 | 中冶赛迪工程技术股份有限公司 | Combined universal rolling production line and production method of profile steels |
| JP2017170468A (en) * | 2016-03-23 | 2017-09-28 | 新日鐵住金株式会社 | Molding caliber and manufacturing method of h-shaped steel |
| CN205673363U (en) * | 2016-03-29 | 2016-11-09 | 中冶华天南京工程技术有限公司 | Big H profile steel mm finishing mill unit and heavy H-steel rolling mill system |
| CN206936012U (en) * | 2017-06-27 | 2018-01-30 | 中冶华天工程技术有限公司 | Heavy section steel rolled steel production system |
| CN108393368A (en) * | 2018-03-28 | 2018-08-14 | 徐州东鑫铸造有限公司 | A kind of H profile steel production technology |
Non-Patent Citations (1)
| Title |
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| 高彩茹等: "《材料成型机械设备》", 30 June 2014, 北京：冶金工业出版社，第1版 * |
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Application publication date: 20190201 |
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