CN107486470A - A kind of energy-efficient cold continuous rolling production line and its method of work - Google Patents

A kind of energy-efficient cold continuous rolling production line and its method of work Download PDF

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Publication number
CN107486470A
CN107486470A CN201710853392.XA CN201710853392A CN107486470A CN 107486470 A CN107486470 A CN 107486470A CN 201710853392 A CN201710853392 A CN 201710853392A CN 107486470 A CN107486470 A CN 107486470A
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China
Prior art keywords
roll
mill
frame
production line
energy
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CN201710853392.XA
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Chinese (zh)
Inventor
马庆龙
李文龙
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Dalian Minzu University
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Dalian Nationalities University
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Priority to CN201710853392.XA priority Critical patent/CN107486470A/en
Publication of CN107486470A publication Critical patent/CN107486470A/en
Pending legal-status Critical Current

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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
    • B21B1/22—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
    • B21B1/24—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 continuous or semi-continuous process
    • B21B1/28—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 continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • 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
    • B21B2015/0064—Uncoiling the rolled product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Metal Rolling (AREA)

Abstract

The invention discloses a kind of energy-efficient cold continuous rolling production line and its method of work, described production line includes uncoiler, straightener, hydraulic shear, welding machine, multiple roll and the tandem mills for setting gradually and being linked in sequence.Described multi-roll tandem cold mill group is made up of multi rack multi-roll mill tandem, and the work roll neck of first frame multi-roll mill is more than the work roll neck of middle multi-roll mill, and the work roll neck of last frame multi-roll mill is more than the work roll neck of intermediate stand milling train.The present invention is using multi-roll mill composition tandem Continuous mill train, due to the powerful pressure ability of multi-roll mill, single pass can realize bigger drafts, the drafts equal with common cold continuous rolling is thus can reach using less frame within a rolling process, so as to reduce frame quantity, shorten technological process.Multi-roll mill work roll neck is small in the present invention, and roll-force substantially reduces in the case of identical drafts, thus can obviously reduce energy consumption using multi-roll mill tandem moor, and the operation of rolling is also more efficient.

Description

A kind of energy-efficient cold continuous rolling production line and its method of work
Technical field
The invention belongs to cold rolling of strip steel technical field, and in particular to a kind of energy-efficient cold continuous rolling production line and its work Method.
Background technology
Traditional tandem mills, using 4 to 6 frame tandems, wherein 5 frame tandems account for the overwhelming majority, type uses 4 rollers Or 6 roller mills, realize drafts needed for a rolling process.
Multi-roll mill has the characteristics of working roll roll neck is small, thus can greatly reduce draught pressure, so as to reach section The purpose that can be lowered consumption.Simultaneously because draught pressure is smaller in the case of identical drafts, thus single pass can be greatly improved Drafts.Include twelve high mill, eighteen-high mill, mill and 30 rollings using more multi-roll mill at present Machine, wherein being most widely used with eighteen-high mill and mill.Multi-roll mill is mainly used in rolling high-strength degree metal tape Material, is usually used in the cold-rolled process of stainless steel, is adopted as the reversible production form of single chassis more.
Such as using multi-roll mill tandem composition Continuous mill train, then required power can be not only reduced, while can realize Milling train quantity is reduced on the premise of equal drafts, shortens technological process.Although multi-roll mill has above-mentioned advantage, but if adopting With tandem rolling form, then with following deficiency：Firstly, since working roll roll neck is smaller, its drafts is limited by skidding factor, Strip can not realize too big drafts when too thick, thus when first frame uses small roll neck milling train, and its drafts can be by beating The limitation of sliding factor；Second, because roll neck is smaller, influenceed by radiating condition, unit speed is restricted, if the use of last frame is more Roller mill, then whole unit speed can be restricted.
The content of the invention
To solve above mentioned problem existing for prior art, the present invention will design one kind and can improve single pass rolling reduction, reduce Frame number, shorten technological process and reduce the energy-efficient cold continuous rolling production line and its method of work of energy expenditure.
To achieve these goals, technical scheme is as follows：A kind of energy-efficient cold continuous rolling production line, including The uncoiler that sets gradually and be linked in sequence, straightener, hydraulic shear, welding machine, entry loop, multi-roll tandem cold mill group, flying shear and Carousel winding reel.
Described multi-roll tandem cold mill group is made up of multi rack multi-roll mill tandem, and the work roll neck of first frame multi-roll mill is more than The work roll neck of middle multi-roll mill, the work roll neck of last frame multi-roll mill are more than the work roll neck of intermediate stand milling train.
Further, described multi-roll tandem cold mill group is made up of 3-5 frame multi-roll mill tandems.
Further, the work roll diameter scope of described first frame multi-roll mill and last frame multi-roll mill is 100-400mm, The work roll diameter scope of middle multi-roll mill is 50-150mm.
Further, described multi-roll tandem cold mill group is by 1 frame eighteen-high mill, 1-3 framves mill, 1 frame 18 Tandem forms roller mill successively.
Further, described multi-roll tandem cold mill group is by 1 frame six-high cluster mill, 1-3 framves mill, the rolling of 1 frame six Tandem forms machine successively.
Further, described multi-roll tandem cold mill group is by 1 frame six-high cluster mill, 1-3 framves eighteen-high mill, the rolling of 1 frame six Tandem forms machine successively.
Further, pickler is set between described entry loop and multi-roll tandem cold mill group, forms pickling-cold company Roll combined production line.
Further, described uncoiler has two, is No.1 uncoiler and No. two uncoilers respectively, described straightener There are two, be No.1 straightener and No. two straighteners respectively；Described No.1 uncoiler and No. two uncoilers are arranged side by side, and described one Number straightener and No. two straighteners are arranged side by side.
Further, the front and rear of described entry loop sets tension roll assembly and entrance tension roll assembly respectively.
A kind of method of work of energy-efficient cold continuous rolling production line, including following process：
A, uncoiling is carried out to coil of strip with No.1 uncoiler, No. two uncoilers；
B, straightening processing is carried out end to end to coil of strip with No.1 straightener, No. two straighteners；
C, coil of strip unqualified band end to end is cut off with hydraulic shear；
D, previous coil of strip magnetic tape trailer and latter steel coil strip head are welded with welding machine；
E, band enters entry loop after tension roll assembly adjusts tension force；
F, entrance tension roll assembly adjustment strap tension is entered after the kink of band gateway；
G, band is rolled into the big roll neck multi-roll mill of first frame, realizes compared with heavy reduction, thickness of strip is thinned, with The skidding for reducing follow-up small roll neck multi-roll mill rolling is dangerous；
H, band enters the small roll neck multi-roll mill of middle 1-3 framves, realizes the energy-efficient rolling of heavy reduction；
I, band is rolled into the big roll neck multi-roll mill of last frame；
J, band reaches required thickness and plate shape after rolling, and band is batched by carousel winding reel；
K, after coil of strip reaches required weight or coil diameter, band is cut by flying shear.
Compared with prior art, the invention has the advantages that：
1st, the present invention is single due to the powerful pressure ability of multi-roll mill using multi-roll mill composition tandem Continuous mill train Passage can realize bigger drafts, thus can be reached and common cold continuous rolling using less frame within a rolling process The equal drafts of machine, so as to reduce frame quantity, shorten technological process.
It is 2nd, of the invention that because multi-roll mill working roll roll neck is small, roll-force substantially reduces in the case of identical drafts, Energy consumption thus can obviously reduce using multi-roll mill tandem moor, the operation of rolling is also more efficient.
3rd, first frame multi-roll mill of the invention work roll neck is more than middle multi-roll mill, in favor of biting for band, prevents The excessive band of drafts skids；Last frame multi-roll mill is more than middle multi-roll mill using work roll neck, avoids small roll neck multiple roll Milling train heat-sinking capability is poor, the deficiency of limited speed, so as to improve the speed of whole production line.Such combination was both abundant The advantages of make use of multi-roll mill, it turn avoid its deficiency.
Brief description of the drawings
Only have accompanying drawing 1 in the present invention to open, wherein：
Fig. 1 is the schematic flow sheet of the energy-efficient cold continuous rolling production line of the present invention
In figure, 1- No.1 uncoilers；2- No.1 straighteners；No. bis- uncoilers of 3-；No. bis- straighteners of 4-；5- hydraulic shears；6- Welding machine；7- tension roll assemblies；8- entry loops；9- entrance tension roll assemblies；10- multi-roll tandem cold mill groups；11- flying shears；12- rotating disc types Coiling machine.
Embodiment
The present invention is further described through below in conjunction with the accompanying drawings.As shown in figure 1, raw material coil of strip is by No.1 uncoiler 1 Uncoiling is carried out to coil of strip successively with No. two uncoilers 2, and steel coil head is carried out by No.1 straightener 3 and No. two straighteners 4 Aligning, coil of strip are fed forward into hydraulic shear 5, and unqualified band is cut away by hydraulic shear 5, continue to transport forward coil of strip to welding machine 6 Place, welding machine 6 are sent to tension roll assembly 7 after welding upper coiled strip steel afterbody and this winding steel head and carry out tension adjustment, adjust Strip enters in entry loop 8 after to suitable tension, and strip comes out from entry loop 8, is sent to the entrance tension force of Continuous mill train Roller group 9, after carrying out tension adjustment, strip enters tandem mills 10, and band passes through the continuous rolling of tandem mills 10, makes band Thickness and plate shape required for acquisition user.
Band is cut by the flying shear 11 after machine when coil of strip reaches required weight or coil diameter.Strip is by being located at The carousel winding reel 12 of production line afterbody is by strip coiling into coil of strip.The two winding drum alternation of carousel winding reel 12 will be continuous Strip rolled in the form of coil of strip.
The present invention is not limited to the present embodiment, any equivalent concepts in the technical scope of present disclosure or changes Become, be classified as protection scope of the present invention.

Claims (10)

  1. A kind of 1. energy-efficient cold continuous rolling production line, it is characterised in that：Including set gradually and be linked in sequence uncoiler, rectify Straight machine, hydraulic shear (5), welding machine (6), entry loop (8), multi-roll tandem cold mill group (10), flying shear (11) and carousel winding reel (12)；
    Described multi-roll tandem cold mill group (10) is made up of multi rack multi-roll mill tandem, and the work roll neck of first frame multi-roll mill is more than The work roll neck of middle multi-roll mill, the work roll neck of last frame multi-roll mill are more than the work roll neck of intermediate stand milling train.
  2. A kind of 2. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：The cold company of described multiple roll Milling train group (10) is made up of 3-5 frame multi-roll mill tandems.
  3. A kind of 3. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：Described first frame multiple roll The work roll diameter scope of milling train and last frame multi-roll mill is 100-400mm, and the work roll diameter scope of middle multi-roll mill is 50-150mm。
  4. A kind of 4. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：The cold company of described multiple roll By 1 frame eighteen-high mill, 1-3 framves mill, 1 frame eighteen-high mill, tandem forms milling train group (10) successively.
  5. A kind of 5. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：The cold company of described multiple roll By 1 frame six-high cluster mill, 1-3 framves mill, 1 frame six-high cluster mill, tandem forms milling train group (10) successively.
  6. A kind of 6. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：The cold company of described multiple roll By 1 frame six-high cluster mill, 1-3 framves eighteen-high mill, 1 frame six-high cluster mill, tandem forms milling train group (10) successively.
  7. A kind of 7. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：Described entry loop (8) pickler is set between multi-roll tandem cold mill group (10), forms pickling-cold continuous rolling combined production line.
  8. A kind of 8. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：Described uncoiler has Two, be No.1 uncoiler (1) and No. two uncoilers (3) respectively, and described straightener has two, is No.1 straightener respectively And No. two straighteners (4) (2)；Described No.1 uncoiler (1) and No. two uncoilers (3) side by side, described No.1 straightener (2) It is arranged side by side with No. two straighteners (4).
  9. A kind of 9. energy-efficient cold continuous rolling production line according to claim 1, it is characterised in that：Described entry loop (8) front and rear setting tension roll assembly (7) and entrance tension roll assembly (9) respectively.
  10. A kind of 10. method of work of energy-efficient cold continuous rolling production line, it is characterised in that：Including following process：
    A, uncoiling is carried out to coil of strip with No.1 uncoiler (1), No. two uncoilers (3)；
    B, straightening processing is carried out end to end to coil of strip with No.1 straightener (2), No. two straighteners (4)；
    C, coil of strip unqualified band end to end is cut off with hydraulic shear (5)；
    D, previous coil of strip magnetic tape trailer and latter steel coil strip head are welded with welding machine (6)；
    E, band enters entry loop (8) after tension roll assembly (7) adjusts tension force；
    F, band gateway kink (8) enters entrance tension roll assembly (9) adjustment strap tension afterwards；
    G, band is rolled into the big roll neck multi-roll mill of first frame, realizes compared with heavy reduction, thickness of strip is thinned, to reduce The skidding of follow-up small roll neck multi-roll mill rolling is dangerous；
    H, band enters the small roll neck multi-roll mill of middle 1-3 framves, realizes the energy-efficient rolling of heavy reduction；
    I, band is rolled into the big roll neck multi-roll mill of last frame；
    J, band reaches required thickness and plate shape after rolling, and band is batched by carousel winding reel (12)；
    K, after coil of strip reaches required weight or coil diameter, band is cut by flying shear (11).
CN201710853392.XA 2017-09-20 2017-09-20 A kind of energy-efficient cold continuous rolling production line and its method of work Pending CN107486470A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500060A (en) * 2018-03-27 2018-09-07 中冶陕压重工设备有限公司 A kind of zirconium plate, the rolling mill practice arrangement with cold mill complex and milling method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824908A (en) * 1994-07-19 1996-01-30 Nisshin Steel Co Ltd Rolling method for stainless steel and high alloy steel strip
CN1306463A (en) * 1999-04-28 2001-08-01 韦克莱奇姆公司 Method for continuous prodn. of metal strip
CN103722011A (en) * 2013-12-31 2014-04-16 一重集团大连设计研究院有限公司 Novel stainless steel cold continuous rolling technology and unit thereof
CN106345808A (en) * 2016-08-30 2017-01-25 山东华烨科技有限公司 Stainless steel continuous rolling mill set and rolling technology thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824908A (en) * 1994-07-19 1996-01-30 Nisshin Steel Co Ltd Rolling method for stainless steel and high alloy steel strip
CN1306463A (en) * 1999-04-28 2001-08-01 韦克莱奇姆公司 Method for continuous prodn. of metal strip
CN103722011A (en) * 2013-12-31 2014-04-16 一重集团大连设计研究院有限公司 Novel stainless steel cold continuous rolling technology and unit thereof
CN106345808A (en) * 2016-08-30 2017-01-25 山东华烨科技有限公司 Stainless steel continuous rolling mill set and rolling technology thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
段小勇等: "《金属压力加工理论基础》", 31 August 2004, 冶金工业出版社 *
黄华清等: "《轧钢机械》", 31 December 1980, 冶金工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500060A (en) * 2018-03-27 2018-09-07 中冶陕压重工设备有限公司 A kind of zirconium plate, the rolling mill practice arrangement with cold mill complex and milling method
CN108500060B (en) * 2018-03-27 2024-04-09 中冶陕压重工设备有限公司 Rolling process arrangement and rolling method of zirconium plate and strip cold rolling unit

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Application publication date: 20171219