CN205056626U - Economical rod sizing production line - Google Patents
Economical rod sizing production line Download PDFInfo
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- CN205056626U CN205056626U CN201520833716.XU CN201520833716U CN205056626U CN 205056626 U CN205056626 U CN 205056626U CN 201520833716 U CN201520833716 U CN 201520833716U CN 205056626 U CN205056626 U CN 205056626U
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Abstract
The utility model discloses an economical rod sizing production line belongs to the rolling technical field of rod, including roughing rolling unit, well rolling mill group, finishing mill group, high -speed flying shear and the cold bed that sets gradually, the order sets up water tank behind sizing unit, multiple length flying shear and the sizing between high -speed flying shear and the cold bed. The utility model discloses a sizing unit, it is low that its single track time elongation coefficient subtracts the sizing unit, among the the rolling process rolled piece temperature rise little, be favorable to improving product quality, simultaneously, behind the sizing unit, the rolled piece at first carries out the multiple length to be sheared, then the water -cooling has shortened and has rolled the space distance, has saved rolling cost.
Description
Technical field
The utility model belongs to rolling bar technical field, relates to a kind of economical bar sizing production line.
Background technology
Bar, as one of the staple product of steel industry, is widely used in building, machinery and Steel Wire Products Industry.In recent years, sustained production increases, and 2014 annual productions reach 7,941 ten thousand tons, and comparatively within 2013, increase by 1,220,000 tons, its output reaches 9.7% of China Steel total amount.
Bar typical main rolling line rolling unit mainly comprises: roughing mills, intermediate mill and mm finishing mill unit.Current bar roughing mills, intermediate mill, mm finishing mill unit frame number are respectively 6 frame+6 frame+6 framves, the production line of the excellent special steel of part producing is equipped with 2 ~ 5 frame reducing-sizing mill after mm finishing mill unit, along with client is to the raising of steel products performance, precision and surface quality requirements and demand urgent of iron and steel enterprise self transition, that is: by special steel manufacturing enterprise transition of Pu Gang manufacturing enterprise, need on former rolling line basis, be equipped with bar reducing-sizing mill and front and back water-cool control change system.
The typical production line main rolling line technological process that outfit bar subtracts sizing is as follows: adopt walking beam heating furnace by heating steel billet and be incubated, subsequently steel billet is carried out roughing mills, intermediate mill, mm finishing mill unit and reducing-sizing mill rolling respectively, in the operation of rolling, every time lengthening coefficient wants about 1.25, be equipped with guide and guard before and after each rolling mill during rolling, after roughing mills, intermediate mill and mm finishing mill unit rolling complete, be equipped with flying shear.Subsequently, rolled piece enters cold bed and follow-up cooling gathering system carries out cooling, collecting.
But, current bar reducing-sizing mill, especially three roller bars subtract sizing can cause rolling-mill housing number increase more, rolling line length increase more, cause investment more, be unfavorable for that middle-size and small-size bar production enterprise transforms.
For Problems existing in current Bars Workshop technology arrangement and production, the utility model provides a kind of economical bar sizing production line, can significantly reduce corporation improvement cost of investment, improves Product Precision, surface quality, effectively enhance product performance, improve Business Economic Benefit.
Utility model content
In view of this, technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provide a kind of economical bar sizing production line, this production line processing cost is low, is easy to realize suitability for industrialized production, has obvious economic benefit.
The purpose of this utility model is achieved through the following technical solutions:
A kind of economical bar sizing production line, comprises the roughing mills, intermediate mill, mm finishing mill unit, high-speed flying shear and the cold bed that set gradually, and between described high-speed flying shear and cold bed, order arranges sizing unit, Double Dimension Flying Shears and sizing rear water box.
Further, described mm finishing mill unit is for can equal vertical change type mm finishing mill unit.
Further, described roughing mills, intermediate mill and mm finishing mill unit are six frames.
Further, described sizing unit is two frames.
The beneficial effects of the utility model are:
1) roll line is compact, and milling train quantity is few compared with being equipped with reducing-sizing mill product line frame quantity, saves plant area, reduces investment outlay.
2) comparatively reducing-sizing mill lengthening coefficient is low for sizing unit single pass lengthening coefficient, and in the operation of rolling, rolled piece temperature rise is little, and rolled piece surface has a narrow range of temperature with core, and structural homogenity is better.
3) be equipped with water tank before and after sizing unit, in conjunction with water tank before finish rolling, can zerolling be realized, improve bar quality, and then improve enterprise competitiveness.
4) after sizing unit, first rolled piece carries out double length shearing, then water-cooled, shortens rolling line spacing, reduces investment;
5) can realize screw-thread steel splitting rolling and the single rolling of excellent steel, recovery rate of iron is high, and production system is flexible.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the layout drawing of a kind of economical bar sizing production line of utility model.
Reference numeral:
1-heating furnace; 2-roughing mills; 3-crop flying shear; 4-intermediate mill; 5-in roll rear water cooling box and crop flying shear; 6-mm finishing mill unit; 7-finish rolling rear water box; 8-high-speed flying shear; 9-sizing unit; 10-Double Dimension Flying Shears; 11-sizing rear water box; 12-cold bed.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, a kind of economical bar sizing production line of the present embodiment, comprise set gradually comprise the heating furnace 1 set gradually, roughing mills 2, intermediate mill 3, in roll rear water cooling box 4, crop flying shear 5, mm finishing mill unit 6, finish rolling rear water box 7, high-speed flying shear 8 and cold bed 12, between described high-speed flying shear 8 and cold bed 12, order arranges sizing unit 9, Double Dimension Flying Shears 10 and sizing rear water box 11, described mm finishing mill unit is for can equal vertical change type mm finishing mill unit, described roughing mills, intermediate mill and mm finishing mill unit are six frames, the equipment of available smaller amounts meets product quality, be beneficial to saving cost.
In the present embodiment, described sizing unit is that two frame in combination are to improve terminal quality.
The present embodiment adopts sizing unit, comparatively reducing-sizing mill lengthening coefficient is low for its single pass lengthening coefficient, and in the operation of rolling, rolled piece temperature rise is little, and rolled piece surface has a narrow range of temperature with core, structural homogenity is better, be conducive to improving the quality of products, meanwhile, after sizing unit, first rolled piece carries out double length shearing, then water-cooled, shortens rolling line spacing, reduces investment.
In addition, this economical production line of bar, can carry out single continuous rolling, also can carry out 2 ~ 6 cutting screw-thread steel rollings, have the more wide in range scope of application.
This production line is taked to there is following advantage relative to prior art:
(1) compared with production line of bar common with typical case, owing to being equipped with sizing unit, mm finishing mill unit and preorder passage single pass drafts can be reduced, by the slighter compress of sizing unit, improve bar size precision;
(2) be furnished with subtract sizing bar typical production line compared with owing to only increasing by two frame sizing units, roll line is compact, and rolled piece temperature rise is less in the operation of rolling, top layer and heart portion have a narrow range of temperature, and what be more conducive to existing production line of bar carries out low cost upgrading;
(3) be equipped with water tank before and after sizing unit, in conjunction with water tank before finish rolling, can zerolling be realized, improve bar quality, and then improve enterprise competitiveness;
(4) after sizing unit, first rolled piece carries out double length shearing, then water-cooled, shortens rolling line spacing, reduces investment;
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. an economical bar sizing production line, comprise the roughing mills, intermediate mill, mm finishing mill unit, high-speed flying shear and the cold bed that set gradually, it is characterized in that: between described high-speed flying shear and cold bed, order arranges sizing unit, Double Dimension Flying Shears and sizing rear water box.
2. one according to claim 1 economical bar sizing production line, is characterized in that: described mm finishing mill unit is for can equal vertical change type mm finishing mill unit.
3. one according to claim 1 economical bar sizing production line, is characterized in that: described roughing mills, intermediate mill and mm finishing mill unit are six frames.
4. one according to claim 1 economical bar sizing production line, is characterized in that: described sizing unit is two frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833716.XU CN205056626U (en) | 2015-10-26 | 2015-10-26 | Economical rod sizing production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833716.XU CN205056626U (en) | 2015-10-26 | 2015-10-26 | Economical rod sizing production line |
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| CN205056626U true CN205056626U (en) | 2016-03-02 |
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| CN201520833716.XU Active CN205056626U (en) | 2015-10-26 | 2015-10-26 | Economical rod sizing production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170646A (en) * | 2015-10-26 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Economical bar sizing production line and method |
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2015
- 2015-10-26 CN CN201520833716.XU patent/CN205056626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170646A (en) * | 2015-10-26 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Economical bar sizing production line and method |
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