CN106734263A - A kind of mm finishing mill unit and finish rolling method that can clear up belt steel surface between finishing stand - Google Patents
A kind of mm finishing mill unit and finish rolling method that can clear up belt steel surface between finishing stand Download PDFInfo
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- CN106734263A CN106734263A CN201611160827.4A CN201611160827A CN106734263A CN 106734263 A CN106734263 A CN 106734263A CN 201611160827 A CN201611160827 A CN 201611160827A CN 106734263 A CN106734263 A CN 106734263A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of mm finishing mill unit that can clear up belt steel surface between finishing stand, including several finishing stands, jet nozzle, several magnetic valves, tracheae and compressed gas source on several；Upper jet nozzle is set between finishing stand, exhalation medium is compressed air, act on the obvious reduction that strip upper surface temperature is not resulted in after belt steel surface, reduce the interference to belt steel temperature, be conducive to requiring rolling temperature the rolling of the products such as Thin Specs, variety steel that higher, plate shape is changed greatly, the production capacity and production stability of hot rolling producing line are improve, the further expansion of Thin Specs, kind product made from steel beneficial to hot rolling producing line high added value.The invention also discloses a kind of finish rolling method that can clear up belt steel surface between finishing stand.
Description
Technical field
The present invention relates to hot rolling technique field, more particularly, to a kind of finish rolling that can clear up belt steel surface between finishing stand
Unit and finish rolling method.
Background technology
The exit of the F1-Fn-1 frames in hot continuous rolling producing line mm finishing mill unit is provided with regurgitates device, regurgitates device medium
Generally turbid circulating water in factory building, the strip upper surface between frame is ejected into during unlatching with certain pressure P1, is mainly used in descaling machine
The cooling water and iron scale of belt steel surface residual between frame, while in the case where some finish rolling finishing temperatures are too high, opening anti-
Water spray can also play a part of to reduce belt steel surface temperature in right amount.
Finishing stand outlet regurgitates water by second-level model set, in the operation of rolling also can by operative employee manually intervene unlatching or
Close.
When product surface quality requirement is higher, needs to open corresponding rack outlet in production and regurgitate water, for conventional products
Production, device is regurgitated in current finish rolling outlet can preferably meet production requirement.
But when the relatively thin slab product higher to temperature requirement is rolled, because strip is to the relatively strong sensitivity of rolling temperature
And the limitation of mill rolling force, regurgitating the unlatching of water can accelerate the temperature drop on thin gauge strip surface, increase roll-force, so as to increase
Plus rolling difficulty, it is unfavorable for expansion of the producing line compared with thin slab product.
Meanwhile, in the case of deformed steel strip in variety steel production process, such as strip steel head nose phenomenon, due to regurgitating
Water injects directly on strip upper surface, increases strip upper and lower surface temperature difference, so as to aggravate nose degree, influence finish rolling threading is steady
It is qualitative, cause to roll useless accident when serious, injury device brings adverse effect to normal production.
Therefore, the manner of cleaning up of belt steel surface between finishing stand how is improved, the belt steel surface temperature that water is caused is regurgitated in solution
Drop accelerates, the strip upper and lower surface temperature difference is increased, so as to have influence on the Thin Specs of hot rolling producing line high added value, kind product made from steel it is steady
Fixed rolling and the problem further expanded, are the technical problems of those skilled in the art's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of mm finishing mill unit that can clear up belt steel surface between finishing stand, the finishing mill
Group can improve the manner of cleaning up of belt steel surface between finishing stand, solution regurgitate the belt steel surface temperature drop that water causes accelerate, strip
The upper and lower surface temperature difference is increased, so as to have influence on the Thin Specs of hot rolling producing line high added value, the stable rolling of kind product made from steel and enter
The problem that one step is expanded.It is an object of the invention to provide a kind of finish rolling method that can clear up belt steel surface between finishing stand,
The jet method can improve the manner of cleaning up of belt steel surface between finishing stand, and solution is regurgitated the belt steel surface temperature drop that water causes and added
Speed, the strip upper and lower surface temperature difference are increased, and are rolled so as to have influence on the Thin Specs of hot rolling producing line high added value, the stabilization of kind product made from steel
System and the problem further expanded.
To solve above-mentioned technical problem, the technical scheme that the present invention is provided is：
A kind of mm finishing mill unit that can clear up belt steel surface between finishing stand, including several finishing stands, on several
Jet nozzle, several magnetic valves, tracheae and compressed gas source；
Several described finishing stands are arranged in order according to fine-rolling strip steel trend；
The upper jet nozzle is arranged on the finishing stand, remaining each finishing mill in addition to F1 finishing stands
Jet nozzle at least one is respectively provided with frame, and the installation site that the upper jet nozzle is arranged on Fn finishing stands is located at
In the axial direction of the upper jet nozzle on the surface of the inlet guide center line of the Fn finishing stands, and the Fn finishing stands
The rolling position centerline of the kink between heart line and the Fn finishing stands and Fn-1 finishing stands is in same straight line, and institute
The jet direction for stating jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described upper jet nozzle is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that jet nozzle is connected with the compressed gas source on described is used for jet spray on described
The beginning of mouth jet and stopping.
Preferably, also including several lower jet nozzles, the lower jet nozzle is arranged on the finishing stand, except
At least one time jet nozzle is respectively provided with outside F1 finishing stands on remaining each finishing stand, on the Fn finishing stands
The installation site of the installation site of upper jet nozzle and lower jet nozzle is symmetrical by the plane of symmetry of fine-rolling strip steel；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet spray
The beginning of mouth jet and stopping.
Preferably, whole magnetic valves electrically connects to control the Fn with the DCS control systems of the mm finishing mill unit
The magnetic valve corresponding to upper jet nozzle on finishing stand is opened after Fn-1 finishing stands sting steel, and steel is thrown in Fn finishing stands
After close；
Whole magnetic valves electrically connect to control the Fn finishing stands with the DCS control systems of the mm finishing mill unit
On lower jet nozzle corresponding to magnetic valve opened after Fn-1 finishing stands sting steel, Fn finishing stands throw steel after close.
Preferably, including 6 finishing stands, F1, F2, F3, F4, F5 and F6 finish rolling are followed successively by according to fine-rolling strip steel trend
Frame.
Preferably, the compressed gas source is compressed air gas source.
The application also provides a kind of finish rolling method that can clear up belt steel surface between finishing stand, by being arranged on finishing mill
Upper jet nozzle on frame blows compressed gas on the upper surface to strip between finishing stand, to clear up finishing stand between strip it is upper
The cooling water and iron scale remained on surface；
The upper jet nozzle is arranged on the finishing stand, remaining each finishing mill in addition to F1 finishing stands
Jet nozzle at least one is respectively provided with frame, and the installation site that the upper jet nozzle is arranged on Fn finishing stands is located at
In the axial direction of the upper jet nozzle on the surface of the inlet guide center line of the Fn finishing stands, and the Fn finishing stands
The rolling position centerline of the kink between heart line and the Fn finishing stands and Fn-1 finishing stands is in same straight line, and institute
The jet direction for stating jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described upper jet nozzle is connected by tracheae with compressed gas source；
And control the gas blowout after Fn-1 finishing stands sting steel of the upper jet nozzle on the Fn finishing stands to open, in Fn essences
Gas blowout is closed after mill stand throws steel.
Preferably, blow pressure on the lower surface by the lower jet nozzle that is arranged on finishing stand to strip between finishing stand
Contracting gas, to clear up finishing stand between strip lower surface on remain cooling water and iron scale；
The lower jet nozzle is arranged on the finishing stand, remaining each finishing mill in addition to F1 finishing stands
At least one time jet nozzle, the installation site and lower jet of the upper jet nozzle on the Fn finishing stands are respectively provided with frame
The installation site of nozzle is symmetrical by the plane of symmetry of fine-rolling strip steel；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
And control the gas blowout after Fn-1 finishing stands sting steel of the lower jet nozzle on the Fn finishing stands to open, in Fn essences
Gas blowout is closed after mill stand throws steel.
Preferably, set on the tracheae that jet nozzle is connected with the compressed gas source on described magnetic valve be used for it is described
The beginning of jet nozzle jet and stopping；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet spray
The beginning of mouth jet and stopping.
Preferably, whole magnetic valves electrically connects to control the Fn with the DCS control systems of the mm finishing mill unit
The magnetic valve corresponding to upper jet nozzle on finishing stand is opened after Fn-1 finishing stands sting steel, and steel is thrown in Fn finishing stands
After close；
Whole magnetic valves electrically connect to control the Fn finishing stands with the DCS control systems of the mm finishing mill unit
On lower jet nozzle corresponding to magnetic valve opened after Fn-1 finishing stands sting steel, Fn finishing stands throw steel after close.
Preferably, a total of 6 of the finishing stand, according to fine-rolling strip steel trend be followed successively by F1, F2, F3, F4, F5 and
F6 finishing stands.
The application has following beneficial technique effect：
1) upper jet nozzle is set between finishing stand, can effectively realizes that the function of device is regurgitated in former finish rolling, efficiently cleaning
The cooling water and iron scale remained on the upper surface of strip between finishing stand, improve strip surface quality.
2) upper jet nozzle is set between finishing stand, and exhalation medium is compressed air, will not be made after acting on belt steel surface
Into the obvious reduction of strip upper surface temperature, the interference to belt steel temperature is reduced, be conducive to the rolling temperature higher, plate of requirement
The rolling of the products such as Thin Specs, variety steel that shape is changed greatly, improves the production capacity and production stability of hot rolling producing line, profit
The further expansion of Thin Specs, kind product made from steel in hot rolling producing line high added value.
3) upper jet nozzle is set, and exhalation medium is compressed air, cost is compared with regurgitating the turbid ring that water is used between finishing stand
Water is lower, reduces producing line production cost.
Brief description of the drawings
Fig. 1 is a kind of work that can clear up the mm finishing mill unit of belt steel surface between finishing stand provided in an embodiment of the present invention
Principle schematic.
In figure：1 strip, 2 support rollers, 3 working rolls, 4 kinks, 5 inlet guides, jet nozzle on 6,7Fn-1 finishing stands,
8Fn finishing stands.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " axial direction ", " radial direction ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " on ", D score, "front", "rear", "left", "right", " top ", " bottom ", " interior ", " outward ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, must be with specific orientation, with specific square rather than instruction or the signified device of hint or element
Position construction and operation, therefore be not considered as limiting the invention.
This application provides a kind of mm finishing mill unit that can clear up the surface of strip 1 between finishing stand, including several finish rolling
Frame, jet nozzle 6, several magnetic valves, tracheae and compressed gas source on several；
Several described finishing stands are arranged in order according to the trend of fine-rolling strip steel 1；
The upper jet nozzle 6 is arranged on the finishing stand, remaining each finish rolling in addition to F1 finishing stands
Jet nozzle 6 at least one are respectively provided with frame, and the upper jet nozzle 6 is arranged on the installation position on Fn finishing stands 8
Setting in the surface of the center line of inlet guide 5 of the Fn finishing stands 8, and the upper jet spray on the Fn finishing stands 8
The rolling position centerline of the kink 4 between the longitudinal center line of mouth 6 and the Fn finishing stands 8 and Fn-1 finishing stands 7
In same straight line, and the jet direction of the upper jet nozzle 6 is opposite with the direction of motion of fine-rolling strip steel 1；
Each described upper jet nozzle 6 is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that jet nozzle 6 is connected with the compressed gas source on described is used for jet spray on described
The beginning of the jet of mouth 6 and stopping.
Above-mentioned mm finishing mill unit also includes treating strip 1, support roller 2 and the working roll 3 of finish rolling.
In one embodiment of the application, above-mentioned mm finishing mill unit also includes several lower jet nozzles, the lower jet
Nozzle is arranged on the finishing stand, and at least one is respectively provided with remaining each finishing stand in addition to F1 finishing stands
Lower jet nozzle, the installation site of the upper jet nozzle 6 on the Fn finishing stands 8 and the installation site of lower jet nozzle with
Fine-rolling strip steel 1 is that the plane of symmetry is symmetrical；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel 1；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet spray
The beginning of mouth jet and stopping.
In one embodiment of the application, whole magnetic valves is electric with the DCS control systems of the mm finishing mill unit
Connect to control the magnetic valve corresponding to the upper jet nozzle 6 on the Fn finishing stands 8 to be opened after Fn-1 finishing stands 7 sting steel
Open, closed after Fn finishing stands 8 throw steel；
Whole magnetic valves electrically connect to control the Fn finishing stands with the DCS control systems of the mm finishing mill unit
The magnetic valve corresponding to lower jet nozzle on 8 is opened after Fn-1 finishing stands 7 sting steel, is closed after Fn finishing stands 8 throw steel
Close.
In one embodiment of the application, above-mentioned mm finishing mill unit includes 6 finishing stands, is moved towards according to fine-rolling strip steel 1
It is followed successively by F1, F2, F3, F4, F5 and F6 finishing stand.
In one embodiment of the application, the compressed gas source is compressed air gas source.
Present invention also provides a kind of finish rolling method that can clear up the surface of strip 1 between finishing stand, by being arranged on essence
Upper jet nozzle 6 in mill stand blows compressed gas on the upper surface to strip between finishing stand 1, to clear up finishing stand between band
The cooling water and iron scale remained on the upper surface of steel 1；
The upper jet nozzle 6 is arranged on the finishing stand, remaining each finish rolling in addition to F1 finishing stands
Jet nozzle 6 at least one are respectively provided with frame, and the upper jet nozzle 6 is arranged on the installation position on Fn finishing stands 8
Setting in the surface of the center line of inlet guide 5 of the Fn finishing stands 8, and the upper jet spray on the Fn finishing stands 8
The rolling position centerline of the kink 4 between the longitudinal center line of mouth 6 and the Fn finishing stands 8 and Fn-1 finishing stands 7
In same straight line, and the jet direction of the upper jet nozzle 6 is opposite with the direction of motion of fine-rolling strip steel 1；
Each described upper jet nozzle 6 is connected by tracheae with compressed gas source；
And control the gas blowout after Fn-1 finishing stands 7 sting steel of the upper jet nozzle 6 on the Fn finishing stands 8 to open,
Gas blowout is closed after Fn finishing stands 8 throw steel.
In one embodiment of the application, by the lower jet nozzle that is arranged on finishing stand to band between finishing stand
Blow compressed gas on the lower surface of steel 1, to clear up finishing stand between strip 1 lower surface on remain cooling water and iron oxide
Skin；
The lower jet nozzle is arranged on the finishing stand, remaining each finishing mill in addition to F1 finishing stands
At least one time jet nozzle, the installation site of the upper jet nozzle 6 on the Fn finishing stands 8 and lower spray are respectively provided with frame
The installation site of gas jets is that the plane of symmetry is symmetrical with fine-rolling strip steel 1；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel 1；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
And control the gas blowout after Fn-1 finishing stands 7 sting steel of the lower jet nozzle on the Fn finishing stands 8 to open, in Fn
Gas blowout is closed after finishing stand 8 throws steel.
In one embodiment of the application, set on the tracheae that jet nozzle 6 is connected with the compressed gas source on described
Magnetic valve is put for the beginning and stopping of the jet of upper jet nozzle 6；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet spray
The beginning of mouth jet and stopping.
In one embodiment of the application, whole magnetic valves is electric with the DCS control systems of the mm finishing mill unit
Connect to control the magnetic valve corresponding to the upper jet nozzle 6 on the Fn finishing stands 8 to be opened after Fn-1 finishing stands 7 sting steel
Open, closed after Fn finishing stands 8 throw steel；
Whole magnetic valves electrically connect to control the Fn finishing stands with the DCS control systems of the mm finishing mill unit
The magnetic valve corresponding to lower jet nozzle on 8 is opened after Fn-1 finishing stands 7 sting steel, is closed after Fn finishing stands 8 throw steel
Close.
In one embodiment of the application, a total of 6 of the finishing stand is followed successively by according to the trend of fine-rolling strip steel 1
F1, F2, F3, F4, F5 and F6 finishing stand.
In one embodiment of the application, the whiff pressure of upper jet nozzle and the above-mentioned irrigation pressure one for regurgitating device
Cause.
The method and apparatus of the not detailed description of the present invention are prior art, repeat no more.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of mm finishing mill unit that can clear up belt steel surface between finishing stand, it is characterised in that including several finishing stands,
Jet nozzle, several magnetic valves, tracheae and compressed gas source on several；
Several described finishing stands are arranged in order according to fine-rolling strip steel trend；
The upper jet nozzle is arranged on the finishing stand, in addition to F1 finishing stands on remaining each finishing stand
Be respectively provided with jet nozzle at least one, and the installation site that is arranged on Fn finishing stands of the upper jet nozzle be located at it is described
The longitudinal center line of the upper jet nozzle on the surface of the inlet guide center line of Fn finishing stands, and the Fn finishing stands
With the rolling of the kink between the Fn finishing stands and Fn-1 finishing stands position centerline in same straight line, and it is described on
The jet direction of jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described upper jet nozzle is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that jet nozzle is connected with the compressed gas source on described is used for jet nozzle spray on described
The beginning of gas and stopping.
2. mm finishing mill unit according to claim 1, it is characterised in that also including several lower jet nozzles, the lower spray
Gas jets are arranged on the finishing stand, and at least one is respectively provided with remaining each finishing stand in addition to F1 finishing stands
Individual lower jet nozzle, the installation site of the upper jet nozzle on the Fn finishing stands and the installation site of lower jet nozzle with
Fine-rolling strip steel is that the plane of symmetry is symmetrical；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet nozzle spray
The beginning of gas and stopping.
3. mm finishing mill unit according to claim 2, it is characterised in that whole magnetic valves and the mm finishing mill unit
DCS control systems electrically connect to control the magnetic valve corresponding to the upper jet nozzle on the Fn finishing stands in Fn-1 finishing mills
Frame is opened after stinging steel, is closed after Fn finishing stands throw steel；
Whole magnetic valves electrically connect to control on the Fn finishing stands with the DCS control systems of the mm finishing mill unit
Magnetic valve corresponding to lower jet nozzle is opened after Fn-1 finishing stands sting steel, is closed after Fn finishing stands throw steel.
4. mm finishing mill unit according to claim 3, it is characterised in that including 6 finishing stands, moved towards according to fine-rolling strip steel
It is followed successively by F1, F2, F3, F4, F5 and F6 finishing stand.
5. mm finishing mill unit according to claim 4, it is characterised in that the compressed gas source is compressed air gas source.
6. a kind of finish rolling method that can clear up belt steel surface between finishing stand, it is characterised in that by being arranged on finishing stand
On upper surface of the upper jet nozzle to strip between finishing stand on blow compressed gas, to clear up finishing stand between strip upper table
The cooling water and iron scale remained on face；
The upper jet nozzle is arranged on the finishing stand, in addition to F1 finishing stands on remaining each finishing stand
Be respectively provided with jet nozzle at least one, and the installation site that is arranged on Fn finishing stands of the upper jet nozzle be located at it is described
The longitudinal center line of the upper jet nozzle on the surface of the inlet guide center line of Fn finishing stands, and the Fn finishing stands
With the rolling of the kink between the Fn finishing stands and Fn-1 finishing stands position centerline in same straight line, and it is described on
The jet direction of jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described upper jet nozzle is connected by tracheae with compressed gas source；
And control the gas blowout after Fn-1 finishing stands sting steel of the upper jet nozzle on the Fn finishing stands to open, in Fn finishing mills
Gas blowout is closed after frame throws steel.
7. finish rolling method according to claim 6, it is characterised in that by the lower jet nozzle being arranged on finishing stand
Blow compressed gas on lower surface to strip between finishing stand, to clear up finishing stand between strip lower surface on remain cooling
Water and iron scale；
The lower jet nozzle is arranged on the finishing stand, in addition to F1 finishing stands on remaining each finishing stand
It is respectively provided with least one time jet nozzle, the installation site and lower jet nozzle of the upper jet nozzle on the Fn finishing stands
Installation site it is symmetrical by the plane of symmetry of fine-rolling strip steel；
And the jet direction of the lower jet nozzle is opposite with the direction of motion of fine-rolling strip steel；
Each described lower jet nozzle is connected by tracheae with the compressed gas source；
And control the gas blowout after Fn-1 finishing stands sting steel of the lower jet nozzle on the Fn finishing stands to open, in Fn finishing mills
Gas blowout is closed after frame throws steel.
8. finish rolling method according to claim 7, it is characterised in that jet nozzle connects with the compressed gas source on described
Magnetic valve is set on logical tracheae to be used for the beginning of the upper jet nozzle jet and stops；
Magnetic valve is set on the tracheae that the lower jet nozzle is connected with the compressed gas source is used for the lower jet nozzle spray
The beginning of gas and stopping.
9. finish rolling method according to claim 8, it is characterised in that whole magnetic valves and the mm finishing mill unit
DCS control systems electrically connect to control the magnetic valve corresponding to the upper jet nozzle on the Fn finishing stands in Fn-1 finishing mills
Frame is opened after stinging steel, is closed after Fn finishing stands throw steel；
Whole magnetic valves electrically connect to control on the Fn finishing stands with the DCS control systems of the mm finishing mill unit
Magnetic valve corresponding to lower jet nozzle is opened after Fn-1 finishing stands sting steel, is closed after Fn finishing stands throw steel.
10. finish rolling method according to claim 9, it is characterised in that a total of 6 of the finishing stand, according to finish rolling
Strip trend is followed successively by F1, F2, F3, F4, F5 and F6 finishing stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160827.4A CN106734263A (en) | 2016-12-15 | 2016-12-15 | A kind of mm finishing mill unit and finish rolling method that can clear up belt steel surface between finishing stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160827.4A CN106734263A (en) | 2016-12-15 | 2016-12-15 | A kind of mm finishing mill unit and finish rolling method that can clear up belt steel surface between finishing stand |
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| CN106734263A true CN106734263A (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663823A (en) * | 2018-12-11 | 2019-04-23 | 福建圣力智能工业科技股份有限公司 | The mm finishing mill unit that belt steel surface can be cleared up between a kind of finishing rolling mill |
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| CN104399747A (en) * | 2014-11-17 | 2015-03-11 | 中国第一重型机械股份公司 | Steckel mill production line |
| CN204842481U (en) * | 2015-04-13 | 2015-12-09 | 霸州市宏升实业有限公司 | Novel reversable mill |
| CN205128617U (en) * | 2015-06-05 | 2016-04-06 | 武汉钢铁(集团)公司 | Rolling mill spray cooling and purge system |
| CN106216393A (en) * | 2016-07-26 | 2016-12-14 | 宝钢股份黄石涂镀板有限公司 | A kind of reversible mill with remaining liquid rapid purging device |
| CN206334971U (en) * | 2016-12-15 | 2017-07-18 | 山东钢铁股份有限公司 | It is a kind of to clear up the mm finishing mill unit of belt steel surface between finishing stand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663823A (en) * | 2018-12-11 | 2019-04-23 | 福建圣力智能工业科技股份有限公司 | The mm finishing mill unit that belt steel surface can be cleared up between a kind of finishing rolling mill |
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Application publication date: 20170531 |