CN103272846B - Rolling system - Google Patents
Rolling system Download PDFInfo
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- CN103272846B CN103272846B CN201310225784.3A CN201310225784A CN103272846B CN 103272846 B CN103272846 B CN 103272846B CN 201310225784 A CN201310225784 A CN 201310225784A CN 103272846 B CN103272846 B CN 103272846B
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- roll
- cooling
- backing
- working
- water tank
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Abstract
The invention provides a rolling cooling system which comprises the supporting rollers, the working roller, a first cooling component which comprises the cooling pipe used for cooling the circulating medium and rotationally contacted with the supporting roller at the upper side and a circulating device communicated with the cooling pipe, and a second cooling component which comprises a cooling water tank and a circulating pipe system, wherein the circulating pipe system is communicated with the cooling water tank; the cooling medium is arranged in the cooling water tank; and the supporting roller located at the lower side is soaked in the cooling medium. The supporting rollers are cooled through the first cooling component and the second cooling component; and the supporting rollers at a low temperature are in contact with the working roller to realize the purpose of cooling the working roller efficiently.
Description
Technical field
The present invention relates to a kind of roll system.
Background technology
Adopt the fountain type of cooling to cool roll in common Rolling Production, the medium of cooling has the emulsion of water, content 5% or entirely oily.
And the micro oil " dry lubrication " that the cold composite roll of two kinds of metals adopts, be almost " dry lubrication " roll carried out under completely without the situation of cooling medium;
Due to the particularity of metal composite rolling, fountain cooling and lubricating mode is completely inapplicable with type of cooling during metal composite rolling, so its type of cooling generally adopts hollow working roll water flowing or blower fan breaker roll to blow cooling.
Hollow working roll water flowing is owing to being subject to the restriction of roll strength, and inflated diameter can not be enough large, and water flowing underfed is to play the effect of lasting cooling work roller;
Blower fan quenching, owing to being subject to the restriction of environment temperature, can not be enough to the temperature rise effectively continuing chill roll system;
Therefore, the temperature that two kinds of above-mentioned types of cooling all completely continuously and effectively can not solve roll constantly raises and makes roll production convexity problem, particularly spring and summer, summer, summer and autumn roller system temperature rise cooling seem particularly important.
In sum, how to design new process for cooling apparatus system and the method for the roll thermal crown problem that a kind of roller system temperature rise that can solve effectively constantly in the metal composite operation of rolling causes roll to be produced, become the matter of utmost importance that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of roll system, in order to solve above-mentioned technical problem.
Embodiments provide a kind of cooling means of roll system, the backing roll for breaker roll system cools, and is cooled backing roll by cooling tube and bosh.In the cooling means of roll system provided by the invention, it mainly adopts the object cooled working roll the cooling conduction of backing roll.Operationally, working roll contacts with rolling metal working roll, and the heat produced in friction process makes the temperature of working roll raise.The present invention adopts cooling tube and bosh to cool backing roll, be Structure deformation between backing roll and working roll, therefore, backing roll can carry out Conduction cooled to working roll, thus avoid the rising of working roll temperature, reach the object of breaker roll system high efficiency cooling.
The embodiment of the present invention additionally provides a kind of roll system, include two backing rolls and two working rolls, backing roll and working roll enumerate setting according to the order of backing roll, working roll, working roll, backing roll on vertical direction, backing roll and working roll Structure deformation, the rolling gap passed through for composition metal is formed between two working rolls, also include: the first cooling package, first cooling package includes the cooling tube circulated for cooling medium and the EGR be communicated with cooling tube, cooling tube and the backing roll rotating contact being positioned at top; Second cooling package, the second cooling package includes cooling water tank and circulation piping, and circulation piping is communicated with cooling water tank, is provided with cooling medium in cooling water tank, and the backing roll being arranged in below is soaked in cooling medium.
The roll coolant system that the embodiment of the present invention provides, in working order, working roll contacts with composition metal, and working roll and the fricative heat of composition metal make working roll temperature raise; Working roll and backing roll Structure deformation, backing roll is cooled by the first cooling package and the second cooling package, and the backing roll of low temperature contacts with working roll, thus reaches the object to working roll effective temperature-reducing.
Accompanying drawing explanation
Fig. 1 is the structural representation of roll system in an embodiment of the present invention;
Fig. 2 is the sectional view along A-A in Fig. 1;
Wherein:
1 one steel bands; 2 copper strips (upper and lower 2); 3,5 working rolls (2); 4 Copper steel cladding bands; 6,7 backing rolls (2); 8 lower support roll cooling water tanks; 9 hot water out pipe; 10 cold water enter pipe; 11 cooling tubes (2 groups); 12 top backing up roll coolant jackets (2 cover).
Detailed description of the invention
Below in conjunction with accompanying drawing, invention is described in further detail:
Please refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the structural representation of roll coolant system in an embodiment of the present invention; Fig. 2 is the sectional view along A-A in Fig. 1.
The invention provides a kind of cooling means of roll system, the backing roll for breaker roll system cools, and adopts the intensity or flow that regulate cooling medium and water, is cooled by cooling tube and bosh to upper and lower backing roll.
In the prior art, roll system includes backing roll and working roll, backing roll and working roll are provided with two, backing roll and working roll enumerate setting according to the order of backing roll, working roll, working roll, backing roll, backing roll and working roll Structure deformation, be formed with the rolling gap passed through for composition metal between two working rolls.
In the cooling means of roll system provided by the invention, it mainly adopts the object cooled working roll the cooling conduction of backing roll.
Operationally, working roll contacts with rolling metal working roll, and the heat produced in friction process makes the temperature of working roll raise.The present invention adopts cooling tube and bosh to cool backing roll, be Structure deformation between backing roll and working roll, therefore, backing roll can cool working roll, thus avoid the rising of working roll temperature, reach the object of breaker roll system high efficiency cooling.
It should be noted that at this, in cooling tube, circulation has cooling medium, and it can adopt cooling system of the prior art, no longer repeats at this.
Present invention also offers a kind of roll system, include two backing rolls and two working rolls, backing roll and working roll enumerate setting according to the order of backing roll, working roll, working roll, backing roll, backing roll and working roll Structure deformation, the rolling gap passed through for composition metal is formed between two working rolls, also include: the first cooling package, first cooling package includes the cooling tube circulated for cooling medium and the EGR be communicated with cooling tube, cooling tube and the backing roll rotating contact being positioned at upside; Second cooling package, the second cooling package includes cooling water tank and circulation piping, and circulation piping is communicated with cooling water tank, is provided with cooling medium in cooling water tank, and the backing roll being arranged in downside is soaked in cooling medium.
Roll system provided by the invention, in working order, working roll contacts with composition metal, and working roll and the fricative heat of composition metal make working roll temperature raise; Working roll and backing roll Structure deformation, backing roll is cooled by the first cooling package and the second cooling package, and the backing roll of low temperature contacts with working roll, thus reaches the object to working roll effective temperature-reducing.
Particularly, cooling tube is that s type is roundabout or be parallel to supporting roller to arranging composition cooling tube group, and cooling tube group is the arcuate structure matched with backing roll.
The present invention relates to composition metal rolling process for cooling technical field, in the present invention, roller system cools lower support roll by water tank, and the cooling of conduction bottom working roll, controls bottom working roll roll thermal crown; Backing roll on the upside of apparatus of the present invention is provided with cooling tube (cooling jacket), the cooling tube conduction top backing up roll heat that coolant jacket arrangement rotates, cooling top backing up roll, the cooling of top backing up roll conduction top working roll, controls top working roll roll thermal crown.
Apparatus of the present invention realize roller system temperature and are effectively controlled after running, and promote and reach two kinds of metal composite band production efficiencys.
In order to solve the roller system temperature rise in clad-rolling process constantly, the invention provides a kind of new equipment of direct-cooled backing roll conducting operations roller cooling.
Bottom working roll cooling principle: lower support roll is immersed in water, heat is walked by the water-band that water tank flows, cooled lower support roll contact bottom working roll, and the heat of bottom working roll is walked in conduction band, and the temperature that the rotation of bottom working roll is produced is lowered;
Water after the heat exchange that water tank flows out again uses as new water circulation after cooling tower cooling.
Top working roll cooling principle: to arrange in top working roll and coolant jacket and rotatable cooling tube wall carries out heat exchange after contacting, the heat of its contact surface tube wall that is cooled is taken away, cooled top backing up roll contact top working roll, the heat of top working roll is walked in conduction band, and top working roll is lowered because rolling rotates the temperature produced;
Cooling medium contact tube wall in cooling tube absorbs heat, and the cooling medium of flowing continuously takes away the heat of tube wall, realizes the exchange heat of top backing up roll and temperature is reduced;
After the heat exchange medium of cooling tube outflow passes through cooling processing, the cooling tube again inputting coolant jacket recycles.
The present invention includes:
Be arranged on the cooling water tank below lower support roll, new water successively enters water tank through oral siphon, and the heat of the lower support roll of rotation flows into water coke slurry with being broken and lowers the temperature in water tank;
Lower support roll rotates a circle, and the water in water tank completes a heat exchange;
When bottom working roll contacts again with lower support roll, the heat of lower support roll by the water coke slurry of water tank, the superposition of empty calory;
When being contacted with bottom working roll by the lower support roll of cooling, heat can be replaced by lower support roll again, and bottom working roll temperature is reduced;
During the metal rolled material of bottom working roll again with roll entrance, the synergistic effect of bottom working roll empty calory;
So go round and begin again, lower support roll heat is cooled directly with water rear conduction to bottom working roll, and bottom working roll is lowered the temperature.
Be arranged on the coolant jacket above top backing up roll, coolant jacket is arranged with rotatable cooling tube, and cooling medium successively enters cooling tube and conducts the heat of top backing up roll;
Cooling medium in successive inflow cooling tube and cooling tube carry out heat exchange, and top backing up roll rotates a circle, and the cooling medium in cooling tube completes a heat exchange;
The top backing up roll rotated cools through 2 groups of coolant jackets, and temperature is effectively reduced;
Top backing up roll and top working roll rotating contact generate heat, cooled pipe heat-shift after entering coolant jacket and reduce temperature, and like this, top backing up roll completes a heat exchange;
When top working roll contacts again with top backing up roll, the previous heat of the top backing up roll cover that is substantially cooled exchanges, the superposition of empty calory;
When being contacted with top working roll by the top backing up roll of cooling, heat can be replaced by top backing up roll again, and top working roll temperature is reduced;
During the metal rolled material of top working roll again with roll entrance, the synergistic effect of top working roll not empty calory;
So go round and begin again like this, after top backing up roll is cooled, conduction is to top working roll, and top working roll is lowered the temperature.
In order to solve the roller system temperature rise in clad-rolling process constantly, the invention provides the device of a kind of metal composite Rolling roller system novel technique for cooling method.
The present invention includes:
Be arranged on the cooling water tank 8 below lower support roll 7, new water successively enters water tank 8 through oral siphon 10, the lower support roll 7 be rotated counterclockwise from water tank oral siphon 10 enter water tank, the heat of the lower support roll 7 of rotation 8 to be lowered the temperature by water coke slurry in water tank;
New water can continuously flow into water tank 8, make water tank come in and go out pipe both sides water can formation temperature poor, the water temperature of entrance side lower than outlet side water temperature,
When lower support roll 7 rotates water tank 8, the water successively flowing into water tank 8 is carried out heat exchange by the lower support roll 7 rotating heating and becomes hot water, and is flowed out by outlet pipe 9, and lower support roll 7 rotates a circle, and the water in water tank 8 completes a heat exchange;
Lower support roll 7 successively rotates, the part of generating heat with bottom working roll 5 rotating contact enters water tank 8, reduced temperature by the water coke slurry heat of water tank 8, part lower support roll 7 temperature after water tank 8 is lower than the temperature entered before water tank 8, and now lower support roll 7 completes a heat exchange;
When bottom working roll 5 contacts again with lower support roll 7, the previous heat of lower support roll 7, substantially by the water coke slurry of water tank 8, avoids the superposition of heat, that is, lower support roll 7, by the cooling of water tank 8, does not produce the synergistic effect of heat when again contacting with bottom working roll 5;
By the lower support roll 7 of cooling, when contacting with the bottom working roll 5 turned clockwise, bottom working roll 5 heat can be replaced by lower support roll 7 again, and bottom working roll 5 temperature is reduced;
When bottom working roll 5 contacts with the metal rolled material (2,1) of roll entrance again, bottom working roll 5 does not produce the synergistic effect of heat;
So go round and begin again like this, lower support roll 7 heat is cooled directly with water rear conduction to bottom working roll 5, and bottom working roll 5 is lowered the temperature.
Be arranged on the coolant jacket 12 above top backing up roll 6, have rotatable cooling tube 11 in coolant jacket row 12, cooling medium successively enters cooling tube 11 through cooling medium entrance 13, the heat of the cooling tube wall conduction top backing up roll 6 of rotation;
Cooling medium in successive inflow cooling tube 11 carries out heat exchange with cooling tube wall 11, and passes through cooling tube outlet 14 outflow, and top backing up roll rotates a circle, and in cooling tube 11, cooling medium completes a heat exchange;
The top backing up roll 6 turned clockwise through the cooling of the cooling tube 11 of 2 groups of coolant jackets,
The part of generating heat with the top backing up roll 6 after top working roll 3 rotating contact enters coolant jacket 12, and cooled pipe 11 heat-shift and reduce temperature, go out part top backing up roll 6 temperature after coolant jacket 12 lower than the temperature entered before coolant jacket 12, now top backing up roll 6 completes a heat exchange;
When top working roll contacts again with top backing up roll 6, the previous heat of top backing up roll 6 cover 12 that is substantially cooled exchanges, and avoids the superposition of heat, that is, top backing up roll 6, by the cooling of coolant jacket 12, does not produce the synergistic effect of heat when again contacting with top working roll 3;
By the top backing up roll 6 of cooling, when contacting with the top working roll be rotated counterclockwise, top working roll 3 heat can be replaced by top backing up roll again, and top working roll 3 temperature is reduced;
When top working roll 3 contacts with the metal rolled material (2,1) of roll entrance again, top working roll 3 does not produce the synergistic effect of heat;
So go round and begin again like this, after top backing up roll 6 is cooled, conduction is to top working roll 3, and top working roll 3 is lowered the temperature.
The present invention regulates the cooling water temperature in the water tank flowed into below lower support roll by cooling tower, the inlet/outlet uninterrupted controlling water tank realizes regulating lower support roll intensity of cooling, makes it the needs meeting cooling lower support roll;
The present invention, by regulating the flow of cooling medium, makes it the needs meeting top backing up roll coolant jacket cooling top backing up roll;
The present invention flows into the different Position Design of cooling tube by cooling medium, makes it the chilling temperature distribution needs met on roll width direction;
The invention provides conducting operations roller cooling after backing roll cooling, make it the roller temperature that working roll temperature meets rolling porch all the time, do not have continuous rolling produce the superposition of temperature rise;
Working roll provided by the invention without continuous rolling produce the superposition of temperature rise, precision and the plate shape of composite rolling band are greatly improved;
The invention provides the backing roll cooling of metal composite rolling, production efficiency significantly promotes, and realizes successive laminating production.
Claims (2)
1. a roll system, include two backing rolls and two working rolls, described backing roll and described working roll enumerate setting according to the order of backing roll, working roll, working roll, backing roll on vertical direction, described backing roll and described working roll Structure deformation, the roll seam passed through for composition metal is formed between two described working rolls, it is characterized in that, also include:
First cooling package, described first cooling package includes the cooling tube circulated for cooling medium and the EGR be communicated with described cooling tube, described cooling tube and the described backing roll rotating contact being positioned at top;
Second cooling package, described second cooling package includes cooling water tank and circulation piping, and described circulation piping is communicated with described cooling water tank, is provided with cooling medium in described cooling water tank, and the described backing roll being arranged in below is soaked in described cooling medium.
2. roll system according to claim 1, is characterized in that, described cooling tube is that s type is roundabout or be parallel to supporting roller to being arranged side by side composition cooling tube group, and described cooling tube group is the arcuate structure matched with described backing roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225784.3A CN103272846B (en) | 2013-06-05 | 2013-06-05 | Rolling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225784.3A CN103272846B (en) | 2013-06-05 | 2013-06-05 | Rolling system |
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| Publication Number | Publication Date |
|---|---|
| CN103272846A CN103272846A (en) | 2013-09-04 |
| CN103272846B true CN103272846B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310225784.3A Expired - Fee Related CN103272846B (en) | 2013-06-05 | 2013-06-05 | Rolling system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889166A (en) * | 2015-05-08 | 2015-09-09 | 宁波宇能复合铜带有限公司 | Metal composite rolling roller system direct cooling technological method and device |
| CN111889518A (en) * | 2020-08-06 | 2020-11-06 | 建龙北满特殊钢有限责任公司 | Water-saving roll pass surface cooling device, manufacturing method and rolling mill set |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694042B2 (en) * | 1988-05-10 | 1994-11-24 | 株式会社日本製鋼所 | Work roll cooling method for rolling mill and apparatus therefor |
| JPH1133608A (en) * | 1997-07-11 | 1999-02-09 | Hitachi Ltd | Rolling mill and rolling method |
| JPH11114611A (en) * | 1997-10-07 | 1999-04-27 | Hitachi Ltd | Rolling mill and rolling method |
| JPH11147118A (en) * | 1997-11-17 | 1999-06-02 | Hitachi Ltd | Rolling mill |
| CN101185941A (en) * | 2007-12-15 | 2008-05-28 | 燕山大学 | Multistage roller cover combined inner-cooling type large-scale supporting roller |
| CN102836880A (en) * | 2011-06-22 | 2012-12-26 | 戚秀 | Cooling device for aluminum foil |
| CN203343176U (en) * | 2013-06-05 | 2013-12-18 | 浙江兆隆合金股份有限公司 | Roll system |
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| CN103272846A (en) | 2013-09-04 |
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Granted publication date: 20150708 Termination date: 20160605 |