CN102189132A - Upper spray cooling device arranged among finishing mill racks - Google Patents
Upper spray cooling device arranged among finishing mill racks Download PDFInfo
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- CN102189132A CN102189132A CN2010101300429A CN201010130042A CN102189132A CN 102189132 A CN102189132 A CN 102189132A CN 2010101300429 A CN2010101300429 A CN 2010101300429A CN 201010130042 A CN201010130042 A CN 201010130042A CN 102189132 A CN102189132 A CN 102189132A
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- finishing stand
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Abstract
The invention discloses an upper spray cooling device arranged among finishing mill racks. The device is arranged above strip steel and at an inlet side of a finishing mill rack. The device comprises a split-type collecting pipe, a plurality of rows of spray pipes, a plurality of opening and closing values and a plurality of driving devices, wherein the split-type collecting pipe is arranged perpendicular to the operating direction of the steel strip; the spray pipes are uniformly arranged along the axial direction of the collecting pipe, each row of spray pipes comprises a plurality of spray pipes arranged along the radial direction of the collecting pipe, and the spray pipes are communicated with the collecting pipe through the upper ports of the spray pipes; the opening and closing values are correspondingly arranged above the plurality of rows of spray pipes and vertically move to break the upper ports of the plurality of rows of spray pipes; and the driving devices are fixedly arranged in a plurality of supports on the split-type collecting pipe, respectively and correspondingly arranged above the plurality of opening and closing values and correspondingly connected with the plurality of opening and closing values so as to realize the driving motion on the opening and closing values. The upper spray cooling of the finishing mill rack has a simple structure, and meanwhile, the adjustment of cooling water along the width direction of the strip steel can be realized.
Description
Technical field
The present invention relates to a kind of cooling device of being located between finishing stand, relate in particular to a kind of in the hot rolling cooling process cooling water spray cooling device on broad-adjustable.
Background technology
The finish rolling production line of iron and steel enterprise all will use band steel cooling device, and its major function is exactly according to the finish rolling target temperature of setting fine-rolling strip steel to be cooled off fast, to guarantee the product tissue and the performance of band steel.
Along with the continuous development of metallurgical production technology, band steel kind, specification enlarge gradually, and micro alloyed steel and carbon manganese steel substitute ordinary steel becomes major product.Existing band steel cooling device, continuous expansion and user's improving constantly along with the rolling line rolling specs to the product quality requirement, can not satisfy the needs that the part steel grade is produced, more especially contain the strength steel (as: BS600, BS700, B510L, S45C, SS400 etc.) of alloying element.These strength steel are in the rolling line production process, belt steel product repeatedly appears because the C that inhomogeneous cooling causes sticks up, and the plate deformationization that causes of strip width direction inhomogeneous cooling, especially the reduction of strip edge portion temperature produces the internal stress of bringing bilateral unrestrained trend than conference in follow-up cooling procedure, thereby all brings very big influence in the uniformity of width for plate shape, mechanical performance, temperature and the phase transformation of band steel.
Discover that strip edge wave and the uneven basic reason of edging tissue are the inhomogeneous of strip width direction temperature, therefore will improve strip edge portion quality and just press for solution hot-strip chilling temperature homogeneity question.
In order to address the above problem, researched and developed strip edge heater (being called for short EH) and the laminar flow cooling edge-masking device that is installed in the finishing mill inlet at how improving strip edge portion quality abroad, strip quality is carried out Comprehensive Control, the hot rolling line of domestic how tame smelter has all been introduced the laminar flow cooling edge-masking device of German SMS company, expects that this device can improve the quality of strip edge portion.Yet, in actual production process, adopt this equipment also to have following shortcoming:
1. strip edge heater need be than the large equipment configuration space, and the finishing stand zone that line is produced in existing hot rolling does not often have sufficient space that the huge equipment of a cover like this is set, and for example Baogang Stocks Trading Co.'s hot rolling 2250mm produces line this strip edge heater device just can't be set;
2. strip edge heater initial stage input cost height.Producing line with Baosteel 1580 is example, and its strip edge heater (being called for short EH) initial stage just drops into and needs 8,000 ten thousand yuan;
3. strip edge heater uses the energy consumption height.Steel industry is faced with the arduous mission of implementing low-carbon economy, and strip edge heater (EH) technology for improving strip edge portion temperature that hot rolling product line is provided with is an electrical induction, consumes power is big when producing use, Baosteel hot rolling 1580mm produces the electric conversion efficiency of line strip edge heater only more than 40%, though the electric conversion efficiency of Baosteel hot rolling 1880mm product line strip edge heater has reached 80% at present, but it is unavoidable causing strip edge portion heat treated cost high, is unfavorable for the saving and the control of the resources of production;
4. an electrical induction fault rate and the maintenance cost height of strip edge heater (EH).Producing line with Baosteel 1580 is example, and the heating head life-span has only 6 to 12 months, and a plurality of costs want 800,000,8 heating heads of installation amount, and only the heating head spare parts consumption will surpass 6,000,000 yuan in 1 year, and the heat-insulating cloth expense of import is also very high.
Therefore, the applicant wishes to invent the band steel cooling device that another is used for the finish rolling production line, this device is under the prerequisite that does not influence fine-rolling strip steel stability, with less equipment manufacture and equipment configuration cost, be able to process for cooling requirement according to the fine-rolling strip steel different in width, the corresponding finishing stand slit cooling water of setting up corresponding to the band channel width, thus realize the respective change of finishing stand cooling water on strip width.
Summary of the invention
The purpose of this invention is to provide a kind of upward spray cooling device of being located between finishing stand, this device is under the prerequisite that does not influence fine-rolling strip steel cooling stability, with less equipment manufacture and equipment configuration cost, be able to process for cooling requirement according to the fine-rolling strip steel different in width, the corresponding finishing stand slit cooling water of setting up corresponding to the band channel width, realize the respective change of finishing stand cooling water on strip width, thereby regulate the cooling width regions of finishing stand cooling water on channel width direction, to overcome cooling device of the prior art the strip width direction is cooled off the insurmountable phenomenon of problem pockety, realize reducing the temperature drop of finish rolling zone strip edge portion, guarantee plate shape with steel, mechanical performance, temperature and phase transformation are in the inhomogeneity purpose of strip width direction.
To achieve these goals, the invention provides a kind of upward spray cooling device of being located between finishing stand, be located at the band steel top of finishing stand entrance side, comprise a collector, the plurality of rows jet pipe is set along belt steel traffic direction, be distributed in the collector top along described collector axial direction, each row's jet pipe includes several jet pipes, arranges along described collector radial direction, and described jet pipe is by its upper port and collector conducting; For the ease of the installation of following keying valve in this device, described collector is split type collector, and it comprises a lower tube body and a upper tube cap of fixedlying connected with described lower tube body; All jet pipe upper port in described each row's jet pipe are concordant; The spray cooling device also comprises on this finishing stand in addition:
Some keying valves, correspondence are located at described plurality of rows jet pipe top, the upper port of vertical movable blocking-up plurality of rows jet pipe;
Some drive units, by being fixed at the some bracing frames on the described split type collector, correspondence is located at described some keying valves top respectively, with the corresponding connection of some keying valves.
Preferably, described each keying valve includes:
One fairlead vertically runs through described upper tube cap, and the outer wall of fairlead is fixedlyed connected with upper tube cap;
One drive link is placed in the described fairlead, slides along the fairlead axial direction;
One contiguous block, its upper end is corresponding fixedly connected with described drive unit, and fixedly connected with the upper end of described drive link in its lower end;
One level board is connected with described drive link lower end vertical fixing, and the lower surface of described level board contacts sealing with each jet pipe upper port, to block the cooling water flow of each jet pipe.
Preferably, described drive unit is a cylinder, fixedlys connected with described contiguous block in the cylinder rod lower end of described cylinder.
Preferably, described drive link upper end is provided with a bulb, and described bulb is fixedlyed connected with drive link by an axle journal, and described contiguous block comprises:
Contiguous block on one, its lower surface are provided with first spherical groove;
One lower connecting block, fixedly connected with the described contiguous block of going up, described lower connecting block is provided with second spherical groove corresponding with described first spherical groove, an and journal hole that is connected with described second spherical groove, described first spherical groove and second spherical groove are formed a spherical groove, described bulb correspondence is located in the spherical groove, and described axle journal correspondence is located in the journal hole.
Preferably, described level board lower surface also is provided with a sealant, thereby guarantees the sealing between level board and the some jet pipes, prevents to leak.
Preferably, the inwall of described fairlead upper end also is provided with at least one sealing, prevents that the cooling water in the collector from spilling from the fit clearance of fairlead and drive link.
Preferably, the described plurality of rows jet pipe upper port that is distributed in collector one end is connected with same level board contact.
Preferably, described each jet pipe upper port is connected with a horizontally disposed jet pipe interface board, described jet pipe interface board has some vertical through hole in the position of corresponding each jet pipe upper port, and the upper surface of jet pipe interface board contacts sealing with described level board, to block the cooling water flow of each jet pipe.
The present invention is owing to adopted the described cooling device of above technical scheme, make it can be according to the process for cooling requirement of fine-rolling strip steel different in width, the corresponding finishing stand slit cooling water of setting up corresponding to the band channel width, realize the respective change of finishing stand cooling water on strip width, thereby regulate the cooling width regions of finishing stand cooling water on channel width direction, realize to reduce the temperature drop of finish rolling zone strip edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of steel inhomogeneity purpose in the strip width direction.Therefore, the present invention can avoid the consumption of the wasting of resources, particularly power supply when reaching same strip edge portion temperature drop effect, thereby when improving the belt steel product quality, greatly reduces production cost.
Description of drawings
Fig. 1 is provided with schematic diagram for the spray cooling device of going up that the present invention is located between finishing stand in mm finishing mill unit.
Fig. 2 is located at the structural representation of the upward spray cooling device between finishing stand for the present invention.
Fig. 3 is the cutaway view at A-A place among Fig. 2.
Fig. 4 is located at the structural representation of going up drive link and level board in the spray cooling device between finishing stand for the present invention.
Fig. 5 is located at the structural representation of going up fairlead in the spray cooling device between finishing stand for the present invention.
The specific embodiment
Specifically introduce a kind of preferred embodiment of the present invention below in conjunction with accompanying drawing 1-5.
As Fig. 1, shown in be located at the band steel top that spray cooling device L is located at finishing stand H entrance side of going up between finishing stand, be shaped down the rolling of roll P through the band steel of supercooling.
As shown in Figures 2 and 3, go up the spray cooling device between finishing stand and comprise a split type collector 1, comprise lower tube body 12 and with the upper tube cap 11 of its fixed seal connection.Collector 1 is provided with along belt steel traffic direction, the plurality of rows jet pipe is thereon uniform along collector 1 axial direction, and each row's jet pipe includes three jet pipes 4, and these three jet pipes 4 are arranged along collector 1 radial direction, three jet pipes 4 are all by its upper port and collector 1 conducting, and the upper port of three jet pipes 4 is concordant.Each row's jet pipe top all correspondence is provided with a keying valve, and each opens and closes valve and comprises: fairlead 5, vertically run through upper tube cap 11, and the outer wall of fairlead 5 is fixedlyed connected with upper tube cap 11; Drive link 6 is placed in the fairlead 5, slides along fairlead 5 axial directions; A pair of fixedly connected last contiguous block 71 and lower connecting block 72, fixedly connected with the cylinder rod lower end of cylinder 3 in the upper end of last contiguous block 71, fixedly connected with the upper end of drive link 6 in the lower end of lower connecting block 72, cylinder 3 is located on the collector upper tube cap 11 by bracing frame 2 fixed mounts.The upper end of the lower end of drive link 6 and level board 8 is fixed, thereby realize drive link 6 straight reciprocating motion about the driving lower edge of cylinder 3 fairlead 5 is done, and then the upper port of three jet pipes 4 of drive level board 8 closure or openness, in order to guarantee that level board 8 cooperates tightly with the upper port of jet pipe 4, the upper port that must guarantee described three jet pipes 4 is concordant, therefore above three upper port, be provided with a jet pipe interface board 41, have corresponding jet pipe through hole on it, its lower end is connected with the upper port of jet pipe 4, thus the conducting of realization and each jet pipe 4.
Drive link structure in this device as shown in Figure 4, comprise the body of rod 63, and with the body of rod 63 by the bulb 61 of axle journal 6 by being threaded, bulb 61 is located in the spherical groove of upper and lower contiguous block composition, fixedly connected with level board 8 in the lower end of the body of rod 63, in order to guarantee the sealing of level board 8 and jet pipe upper port contact-making surface, the lower end of level board 8 also is provided with one deck sealant 81.
Fairlead structure in this device is provided with two sealings 51 and 52 as shown in Figure 5 on the inwall of fairlead 5, thereby prevents that the cooling water in the collector from spilling from the fit clearance of fairlead and drive link.
Device of the present invention is in use done straight reciprocating motion up and down by keying valve of an air cylinder driven along fairlead, thereby realization is opened, closed jet pipe upper port, and then realizes the adjusting along strip width direction cooling water inflow.This device is different from existing strip edge heater technology, when reaching same strip edge portion temperature effect, can avoid than large resource, and the particularly consumption of power supply, thus when improving the belt steel product quality, also greatly reduce production cost.This device can be according to the process for cooling requirement of fine-rolling strip steel different in width in addition, the corresponding finishing stand slit cooling water of setting up corresponding to the band channel width, realize the respective change of finishing stand cooling water on width, thereby regulate the cooling width regions of finishing stand cooling water on channel width direction, overcome that finishing stand cooling system in the prior art exists the cooling skewness to the strip width direction and the phenomenon that can't regulate, reduce the temperature drop of finish rolling zone strip edge portion, guarantee plate shape with steel, mechanical performance, temperature and phase transformation are in the uniformity of strip width direction.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (8)
1. be located at and go up the spray cooling device between finishing stand for one kind, be located at the band steel top of finishing stand entrance side, comprise a collector, be provided with along belt steel traffic direction, the plurality of rows jet pipe is distributed in top, collector two ends along described collector axial direction, and each row's jet pipe includes several jet pipes, arrange along described collector radial direction, described jet pipe is by its upper port and collector conducting; It is characterized in that described collector is split type collector, it comprises a lower tube body and a upper tube cap of fixedlying connected with described lower tube body; All jet pipe upper port in described each row's jet pipe are concordant; The spray cooling device also comprises on the described finishing stand:
Some keying valves, correspondence are located at described plurality of rows jet pipe top, the upper port that jet pipe is respectively arranged in vertical movable blocking-up;
Some drive units, by being fixed at the some bracing frames on the described split type collector, correspondence is located at the described valve top that respectively opens and closes respectively, and opens and closes the corresponding connection of valve with each.
2. the upward spray cooling device of being located between finishing stand as claimed in claim 1 is characterized in that, described each keying valve includes:
One fairlead vertically runs through described upper tube cap, fixedlys connected with it;
One drive link is placed in the described fairlead, slides along the fairlead axial direction;
One contiguous block, its upper end is corresponding fixedly connected with described drive unit, and fixedly connected with the upper end of described drive link in its lower end;
One level board is connected with described drive link lower end vertical fixing, and the lower surface of described level board contacts sealing with each jet pipe upper port, to block the cooling water flow of each jet pipe.
3. the upward spray cooling device of being located between finishing stand as claimed in claim 2 is characterized in that described drive unit is vertically disposed cylinder, fixedlys connected with described contiguous block in the cylinder rod lower end of described cylinder.
4. the upward spray cooling device of being located between finishing stand as claimed in claim 1 or 2 is characterized in that described drive link upper end is provided with a bulb, and described bulb is fixedlyed connected with drive link by an axle journal, and described contiguous block comprises:
Contiguous block on one, its lower surface are provided with first spherical groove;
One lower connecting block, fixedly connected with the described contiguous block of going up, described lower connecting block is provided with second spherical groove corresponding with described first spherical groove, an and journal hole that is connected with described second spherical groove, described first spherical groove and second spherical groove are formed a spherical groove, described bulb correspondence is located in the spherical groove, and described axle journal correspondence is located in the journal hole.
5. the upward spray cooling device of being located between finishing stand as claimed in claim 4 is characterized in that described level board lower surface also is provided with a sealant.
6. as claim 3 or the 5 described upward spray cooling devices of being located between finishing stand, it is characterized in that the inwall upper end of described fairlead also is provided with at least one seal.
7. the upward spray cooling device of being located between finishing stand as claimed in claim 6 is characterized in that, the described plurality of rows jet pipe upper port that is distributed in collector one end is connected with same level board contact.
8. the upward spray cooling device of being located between finishing stand as claimed in claim 6, it is characterized in that, described each jet pipe upper port is connected with a horizontally disposed jet pipe interface board, described jet pipe interface board has some vertical through hole in the position of corresponding each jet pipe upper port, the upper surface of jet pipe interface board contacts sealing with described level board, to block the cooling water flow of each jet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101300429A CN102189132A (en) | 2010-03-19 | 2010-03-19 | Upper spray cooling device arranged among finishing mill racks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101300429A CN102189132A (en) | 2010-03-19 | 2010-03-19 | Upper spray cooling device arranged among finishing mill racks |
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| CN102189132A true CN102189132A (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101300429A Pending CN102189132A (en) | 2010-03-19 | 2010-03-19 | Upper spray cooling device arranged among finishing mill racks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439883A (en) * | 2018-12-12 | 2019-03-08 | 中冶南方工程技术有限公司 | The spray cooling device of Strip Shape can be improved |
| CN111744975A (en) * | 2015-12-23 | 2020-10-09 | 株式会社Posco | Cooling device and cooling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744975A (en) * | 2015-12-23 | 2020-10-09 | 株式会社Posco | Cooling device and cooling method |
| CN109439883A (en) * | 2018-12-12 | 2019-03-08 | 中冶南方工程技术有限公司 | The spray cooling device of Strip Shape can be improved |
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Application publication date: 20110921 |