CN102247995A - Method for detecting and regulating cooling effect of roller and roller cooling device - Google Patents
Method for detecting and regulating cooling effect of roller and roller cooling device Download PDFInfo
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- CN102247995A CN102247995A CN2011101382828A CN201110138282A CN102247995A CN 102247995 A CN102247995 A CN 102247995A CN 2011101382828 A CN2011101382828 A CN 2011101382828A CN 201110138282 A CN201110138282 A CN 201110138282A CN 102247995 A CN102247995 A CN 102247995A
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- roll
- cooling
- cooling water
- roller
- cooling device
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Abstract
The invention provides a method for detecting and regulating the cooling effect of a roller and a roller cooling device. The method comprises the following steps of: uniformly coating a coating layer on the periphery of the roller, and naturally airing the coating layer; installing the roller on a rolling mill, and regulating the position of the roller to be the same as a position during normal rolling; starting the roller cooling device so that cooling water is sprayed from a cooling water collecting pipe to the roller for a preset time through multiple nozzles; stopping the roller cooling device, and measuring traces formed on the coating layer due to the impact of the cooling water; and regulating the installation height and distance of the cooling water collecting pipe and spray angles of the multiple nozzles according to the traces so as to ensure that the roller cooling device sufficiently and effectively cools the roller, and therefore rolling effect is enhanced. According to the roller cooling device and the method provided by the invention, the rejection/defective rate of rolling and the consumption of the roller can be reduced; and the roller cooling device is easy to operate and short time is consumed.
Description
Technical field
The present invention relates to technical field of steel rolling, more particularly, relate to a kind of method and roll cooling device that detects and regulate the roll cooling effect.
Background technology
Usually, reason owing to the milling train design of hot rolled plate factory, roller neck (roller head) is short partially and the roll cooling water inlet has respectively been installed 2 row's cooling manifolds up and down and respectively installed 2 up and down in outlet arranges in a row pipe, so can't detect the installation site when mounted, the deviation that the installation site occurs makes roll cooling water collector unreasonable with respect to the design of the eject position of roll, spray angle, cooling surface.Therefore, make the decline of the cooling capacity of roll in the operation of rolling cause the roll oxide-film to come off, the roll inhomogeneous cooling makes the thermal expansion of rollers inequality and causes being with steel convex closure generation of defects.Yet, the installation process more complicated of working roll cooling water collector, the cooling effect of cooling water in milling train can not be found out very intuitively with range estimation, only occur that oxide-film comes off, roll surface occurs coarse at the working roll of milling train, when perhaps the mass defect of fish scale shape, loose sand shape and convex closure defective appearred in the belt steel surface of Sheng Chaning, it is unreasonable that operating personnel can learn that just roll coolant system is provided with.For example, usually, may be because eject position, spray angle, cooling surface etc. be provided with that the unreasonable cooling effect that causes breaker roll descends and roll inhomogeneous cooling etc., thus the steel generation mass defect that rolls out caused.In the prior art, detect roll cooling water collector or nozzle location and whether rationally reach design level, the used time is long, and the cycle is long, and can produce more waster, has reduced lumber recovery.
Summary of the invention
At the problems referred to above that prior art exists, an aspect of of the present present invention provides a kind of method that detects and regulate the roll cooling effect, and another aspect of the present invention provides a kind of roll cooling device.
An aspect of of the present present invention provides a kind of method that detects and regulate the roll cooling effect, said method comprising the steps of: apply the last layer coat equably on the excircle of roll, coat is dried naturally; Roll is installed on the milling train, and the position of roll is adjusted into normal identical when rolling; Start roll cooling device, make cooling water from the cooling water collector, spray the scheduled time to roll through a plurality of nozzles; Stop roll cooling device, measure the vestige that on coat, forms by the cooling water impact; Adjust the setting height(from bottom) of cooling water collector and the jet angle of distance and a plurality of nozzles according to described vestige,, thereby improve effect of rolling so that the roll cooling device breaker roll carries out fully and cooling effectively.
According to an aspect of the present invention, described roll can be the old roll that unloads from milling train or the sample rolls wooden or plastics identical with the employed steel roll of steel rolling profile.
According to an aspect of the present invention, described coat can be skin of paint.
According to an aspect of the present invention, the step of described startup roll cooling device can be sprayed cooling water 5～8 minutes to roll, to form vestige fully on coat.
Another aspect of the present invention provides a kind of roll cooling device, described roll cooling device comprises to be provided the cooling water of cooling water collector and is installed on the cooling water collector and is used for a plurality of nozzles that roll up and down sprays cooling water, the jet angle of the setting height(from bottom) of described cooling water collector and distance and a plurality of nozzles can be regulated, so that the roll cooling device breaker roll carries out fully and cooling effectively, thereby improve effect of rolling.
According to a further aspect in the invention, the jet angle of the setting height(from bottom) of described cooling water collector and distance and a plurality of nozzles can be regulated by the mode shown in the method for described detection and adjusting roll cooling effect.
Compared with prior art, beneficial effect of the present invention is: whether (1) can effectively, fast judge the installation site of roll cooling water collector and distance and the jet angle of nozzle suitable and it is adjusted, and the used time is short, the cycle is short; (2) avoided because of the jet angle of the installation site of cooling water collector and distance and nozzle improper, make the roll inhomogeneous cooling cause the roll oxide-film to take off, and cause the mass defect for the treatment of that the steel rolling scale on surface is pressed into, also avoided causing treating that because of the roll inhomogeneous cooling makes the thermal expansion of rollers inequality steel rolling produces convex closure defective or the like, thereby can not produce more waster like that, and reduce the roller consumption of roll to traditional mode.
Description of drawings
Fig. 1 illustrates roll cooling device and detection according to an exemplary embodiment of the present invention and regulates the schematic diagram of the method for roll cooling effect.
The specific embodiment
Roll cooling device according to an aspect of the present invention comprises to be provided the cooling water of cooling water collector and is installed on the cooling water collector and is used for a plurality of nozzles that roll up and down sprays cooling water, the jet angle of the setting height(from bottom) of described cooling water collector and distance and a plurality of nozzles can be regulated, so that the roll cooling device breaker roll carries out fully and cooling effectively, thereby improve effect of rolling.
The method of detection according to a further aspect of the invention and adjusting roll cooling effect may further comprise the steps: apply the last layer coat equably on roll, coat is dried naturally; Roll is installed on the milling train, the position of roll is adjusted into normal identical when rolling; Start roll cooling device, make cooling water from the cooling water collector, spray the scheduled time to roll through a plurality of nozzles; Stop roll cooling device, measure the vestige that on coat, forms by the cooling water impact; Adjust the setting height(from bottom) of cooling water collector and the jet angle of distance and a plurality of nozzles according to described vestige,, thereby improve the effect of rolling for the treatment of rolled steel so that the roll cooling device breaker roll carries out fully and cooling effectively.
In one embodiment, described roll can be old roll or the sample roll identical, wooden with the employed steel roll of steel rolling profile or plastics that unloads from milling train.Use old roll or sample roll under the prerequisite of assurance, to reduce cost of the present invention to the detection effect of cooling effect.Certainly, on the roll that can carry out normal steel rolling operation, carry out also can realizing the present invention, yet can increasing cost coated with forming coat.
In one embodiment, described coat can be skin of paint.With paint application easy to operate on old roll or sample roll, and cost is low.
In one embodiment, the step of described startup cooling device was sprayed cooling water 5～8 minutes to roll, to form vestige fully on coat.When cooling water injecting time during, may cause that to spray vestige clear inadequately, thereby weaken accuracy of the present invention less than 5 minutes.When cooling water injecting time during, can cause cooling water waste, and prolong the time of detecting and spending when regulating the milling train cooling effect greater than 8 minutes.
Hereinafter, will describe exemplary embodiment of the present invention in conjunction with the accompanying drawings in detail.
Fig. 1 illustrates roll cooling device and detection according to an exemplary embodiment of the present invention and regulates the schematic diagram of the method for roll cooling effect.
As shown in Figure 1, roll cooling device comprises provides the cooling water of cooling water collector (not shown) and is installed on the cooling water collector and is used for spraying to topping roll 1 and bottom roll 2 many groups nozzle 31,32,33,34 and 35 of cooling waters.The direct of travel of steel when the direction of arrow among Fig. 1 is rolling.The setting height(from bottom) of cooling water collector and distance and the jet angle of organizing nozzle 31,32,33,34 and 35 can be regulated more, so that the roll cooling device breaker roll carries out fully and cooling effectively, thereby improve effect of rolling.For example, can realize by the relative position of regulating cooling water collector and milling train the setting height(from bottom) of cooling water collector and the adjusting of distance; Adjusting to many groups nozzle 31,32,33,34 and 35 jet angle can be set to the adjustable structure of jet blower direction by these nozzles that are connected with the cooling water collector.In this exemplary embodiment, nozzle comprises that first group of nozzle 31, second group of nozzle 32, the 3rd group of nozzle 33, the 4th group of nozzle 34 and the 5th group of nozzle 35 form.Further, each organizes nozzle can comprise a plurality of nozzles, and their position as shown in Figure 1.And pressure and/or the flow of respectively organizing nozzle can be determined according to actual conditions.For example, when rolled band steel, the flow of cooling water in first group of nozzle 31 can be 344.7m
3/ h, the flow of cooling water in second group of nozzle 32 and the 3rd group of nozzle 33 can be 51.6m
3/ h, the flow of cold lack of water in the 4th group of nozzle 34 and the 5th group of nozzle 35 can be 102.3m
3/ h.
Although describe quantity, position and the cooling water flow wherein of nozzle here in detail, but the invention is not restricted to this, that is to say, those skilled in the art can be provided with quantity, position and the cooling water flow wherein of nozzle according to the conditions such as size of type of cooling steel grade (for example, H shaped steel, F shaped steel, band steel etc.) and roll.
As shown in Figure 1, in one embodiment of the invention, the method that detects and regulate the roll cooling effect may further comprise the steps:
At first, on the excircle of topping roll 1 and bottom roll 2, apply the last layer coat equably, coat is placed on the ventilation dried 40 minutes.
Then, the topping roll 1 and the bottom roll 2 that have applied coat are installed on the milling train, and their position is adjusted into normal identical when rolling, that is to say, topping roll 1 and bottom roll 2 is fixing, and make them remain normal rolling position, and the slit between topping roll 1 and the bottom roll 2 with normal when rolling distance between them equate.
Next, start the roll cooling device of forming by cooling water collector and many group nozzles 31,32,33,34 and 35, cooling water was sprayed 6 minutes to roll from these many group nozzles, thereby on coat, form vestige clearly.
Next, stop roll cooling device, measure the vestige that on coat, forms by the cooling water impact.
According to being formed on the jet angle that vestige on the coat is adjusted the setting height(from bottom) of cooling water collector and distance and organized nozzle more,, thereby improve the effect of rolling for the treatment of rolled steel so that the roll cooling device breaker roll carries out fully and cooling effectively.Because the vestige that forms on the coat can show the parameters such as cooling surface of current roll coolant system, so the staff is when concrete operations, can compare by the cooling requirement of cooling system parameter that vestige is shown with good steel rolling production technology breaker roll, adjust the setting height(from bottom) and/or the distance of cooling water collector then, perhaps adjust the jet angle of the one or more nozzles in many group nozzles, thereby make cooling system parameter that the vestige on the coat demonstrates more near the cooling requirement of good steel rolling production technology breaker roll, and then realize improvement cooling effect.For example, can be only by adjusting the jet angle of some nozzle in a group in many group nozzles, roll cooling device is cooled off all sidedly to the local location of topping roll 1 and/or bottom roll 2, thereby avoided making the roll inhomogeneous cooling cause the roll oxide-film to come off and cause treating mass defect that the steel rolling scale on surface is pressed into and thermal expansion of rollers is uneven to cause treating that steel rolling produces convex closure defective or the like because of the roll inhomogeneous cooling makes because of the jet angle installation site of nozzle is incorrect.
In sum, whether apparatus and method of the present invention can be judged the installation site of roll cooling water collector and distance and the jet angle of nozzle effectively, quickly suitable and it is adjusted, and the used time is short, the cycle is short; And can avoid because of the jet angle of the installation site of cooling water collector and distance and nozzle improper, make the roll inhomogeneous cooling cause the roll oxide-film to come off, and cause the mass defect for the treatment of that the steel rolling scale on surface is pressed into, and can avoid that thermal expansion of rollers is uneven to cause treating that steel rolling produces convex closure defective or the like because of the roll inhomogeneous cooling makes, thereby reduced rolling waster rate and reduced the roller consumption of roll.
Claims (6)
1. a method that detects and regulate the roll cooling effect is characterized in that, said method comprising the steps of:
On the excircle of roll, apply the last layer coat equably, coat is dried naturally;
Roll is installed on the milling train, and the position of roll is adjusted into normal identical when rolling;
Start roll cooling device, make cooling water from the cooling water collector, spray the scheduled time to roll through a plurality of nozzles;
Stop roll cooling device, measure the vestige that on coat, forms by the cooling water impact;
Adjust the setting height(from bottom) of cooling water collector and the jet angle of distance and a plurality of nozzles according to described vestige,, thereby improve effect of rolling so that the roll cooling device breaker roll carries out fully and cooling effectively.
2. detection as claimed in claim 1 and the method for regulating the roll cooling effect is characterized in that, old roll or the sample roll with steel rolling employed steel roll profile identical, wooden or plastics of described roll for unloading from milling train.
3. detection as claimed in claim 1 and the method for regulating the roll cooling effect is characterized in that described coat is a skin of paint.
4. detection as claimed in claim 1 and the method for regulating the roll cooling effect is characterized in that, in the step of described startup roll cooling device, spray cooling water 5～8 minutes to roll, to form vestige fully on coat.
5. roll cooling device, it is characterized in that, comprise and the cooling water of cooling water collector is provided and is installed on the cooling water collector and is used for a plurality of nozzles that roll up and down sprays cooling water, the jet angle of the setting height(from bottom) of described cooling water collector and distance and a plurality of nozzles can be regulated, so that the roll cooling device breaker roll carries out fully and cooling effectively, thereby improve effect of rolling.
6. roll cooling device as claimed in claim 5 is characterized in that, the jet angle of the setting height(from bottom) of described cooling water collector and distance and a plurality of nozzles can be by regulating as each described method in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101382828A CN102247995A (en) | 2011-05-26 | 2011-05-26 | Method for detecting and regulating cooling effect of roller and roller cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101382828A CN102247995A (en) | 2011-05-26 | 2011-05-26 | Method for detecting and regulating cooling effect of roller and roller cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102247995A true CN102247995A (en) | 2011-11-23 |
Family
ID=44975772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101382828A Pending CN102247995A (en) | 2011-05-26 | 2011-05-26 | Method for detecting and regulating cooling effect of roller and roller cooling device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694569A (en) * | 2017-01-09 | 2017-05-24 | 首钢京唐钢铁联合有限责任公司 | Method for detecting failure of cooling nozzles of finish rolling working rolls |
| CN108180816A (en) * | 2017-12-29 | 2018-06-19 | 南京钢铁股份有限公司 | A kind of quick measurement quenching press gap nozzle method |
| CN113477728A (en) * | 2021-06-17 | 2021-10-08 | 首钢集团有限公司 | Measuring device, and system and method for detecting nozzle flow of laminar flow cooling header |
| CN114453438A (en) * | 2022-01-06 | 2022-05-10 | 首钢京唐钢铁联合有限责任公司 | Method for evaluating cooling effect of roller cooling water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912955A (en) * | 1988-12-05 | 1990-04-03 | Norandal Usa Inc. | Spray system for rolling mill |
| CN2860648Y (en) * | 2006-01-11 | 2007-01-24 | 昆明钢铁股份有限公司 | Cooling unit for roller of mill |
| CN201179524Y (en) * | 2008-03-28 | 2009-01-14 | 重庆钢铁(集团)有限责任公司 | Roll barrel spray cooling apparatus suitable for fast mill |
| CN101648220A (en) * | 2008-08-15 | 2010-02-17 | 宝山钢铁股份有限公司 | Method for online detection of roll cooling |
| WO2010057610A1 (en) * | 2008-11-18 | 2010-05-27 | Sms Siemag Ag | Device for cooling a roller in a rolling unit |
-
2011
- 2011-05-26 CN CN2011101382828A patent/CN102247995A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912955A (en) * | 1988-12-05 | 1990-04-03 | Norandal Usa Inc. | Spray system for rolling mill |
| CN2860648Y (en) * | 2006-01-11 | 2007-01-24 | 昆明钢铁股份有限公司 | Cooling unit for roller of mill |
| CN201179524Y (en) * | 2008-03-28 | 2009-01-14 | 重庆钢铁(集团)有限责任公司 | Roll barrel spray cooling apparatus suitable for fast mill |
| CN101648220A (en) * | 2008-08-15 | 2010-02-17 | 宝山钢铁股份有限公司 | Method for online detection of roll cooling |
| WO2010057610A1 (en) * | 2008-11-18 | 2010-05-27 | Sms Siemag Ag | Device for cooling a roller in a rolling unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694569A (en) * | 2017-01-09 | 2017-05-24 | 首钢京唐钢铁联合有限责任公司 | Method for detecting failure of cooling nozzles of finish rolling working rolls |
| CN108180816A (en) * | 2017-12-29 | 2018-06-19 | 南京钢铁股份有限公司 | A kind of quick measurement quenching press gap nozzle method |
| CN113477728A (en) * | 2021-06-17 | 2021-10-08 | 首钢集团有限公司 | Measuring device, and system and method for detecting nozzle flow of laminar flow cooling header |
| CN114453438A (en) * | 2022-01-06 | 2022-05-10 | 首钢京唐钢铁联合有限责任公司 | Method for evaluating cooling effect of roller cooling water |
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Application publication date: 20111123 |