CN102189129B - 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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- CN102189129B CN102189129B CN 201010129761 CN201010129761A CN102189129B CN 102189129 B CN102189129 B CN 102189129B CN 201010129761 CN201010129761 CN 201010129761 CN 201010129761 A CN201010129761 A CN 201010129761A CN 102189129 B CN102189129 B CN 102189129B
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Abstract
The invention discloses an upper spray cooling device arranged among finishing mill racks. The device comprises a collecting pipe, a plurality of rows of spray pipes, a plurality of sets of plunger devices and a plurality of driving devices, wherein the collecting pipe is arranged perpendicular to the operating direction of strip steel; the spray pipes are uniformly arranged along the axial direction of the collecting pipe, and each row of spray pipes comprises a plurality of spray pipes arranged along the radial direction of the collecting pipe; the plunger devices are correspondingly arranged above the plurality of rows of spray pipes; and each set of plunger device respectively comprises a plurality of locating sleeves, a plurality of plunger sleeves and a plurality of plungers; the locating sleeves are arranged in parallel and respectively arranged above the plurality of spray pipes in vertical; the plurality of plunger sleeves are respectively and correspondingly arranged in the plurality of locating sleeves, the plurality of plunger sleeves are communicated with the spray pipes; communication between the plunger sleeves and the spray pipes are realized through water inlets arranged on the plunger sleeves; the plungers are respectively and correspondingly arranged in the plunger sleeves and break the water inlets by sliding along the axial directions of the plunger sleeves; and the driving devices are connected with the plunger devices.
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 the broad-adjustable cooling device that sprays of cooling water.
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 product tissue and the performance with steel.
Along with the 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 the product quality requirement along with the rolling line rolling specs, 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 deformation that causes of strip width direction inhomogeneous cooling, especially the reduction of steel edge portion temperature produces the internal stress of bringing bilateral unrestrained trend than conference in follow-up cooling procedure, thereby all brings very large impact in the uniformity of width for plate shape, mechanical performance, temperature and phase transformation with steel.
Research finds that strip edge wave and the inhomogeneous basic reason of edging tissue are the inhomogeneous of strip width direction temperature, therefore will improve the steel edge portion quality with regard to hot-strip chilling temperature homogeneity question in the urgent need to address.
In order to address the above problem, researched and developed strip edge heater (being called for short EH) and the laminar flow cooling edge sheltering device that is installed in the finishing mill entrance for how improving the steel edge portion quality abroad, strip quality is carried out Comprehensive Control, the hot rolling line of domestic many smelters has all been introduced the laminar flow cooling edge sheltering device of German SMS company, expects that this device can improve the quality of steel edge portion.Yet, in actual production process, adopt this equipment also to have following shortcoming:
1. strip edge heater need to be than the large equipment configuration space, and is produced from the finishing stand zone of line in existing hot rolling, does not often have the huge equipment of a sufficient spatial placement cover like this, 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 is high.Produce line as example take Baosteel 1580, its strip edge heater (being called for short EH) initial stage just drops into and needs 8,000 ten thousand yuan;
3. the strip edge heater Energy in use is high.Steel industry is faced with the arduous mission of implementing low-carbon economy, and strip edge heater (EH) technology for improving the steel edge portion temperature that hot rolling product line arranges is electrical induction, consumes power is large when production and application, Baosteel hot rolling 1580mm produces the electric conversion efficiency of line strip edge heater only more than 40%, although the electric conversion efficiency of Baosteel hot rolling 1880mm product line strip edge heater has reached 80% at present, but it is unavoidable causing steel edge portion heat treated cost high, is unfavorable for saving and the control of the resources of production;
4. an electrical induction fault rate of strip edge heater (EH) and maintenance cost are high.Produce line as example take Baosteel 1580, the heating head life-span only has 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 affect fine-rolling strip steel stability, with less device fabrication amount and equipment configuration cost, be able to the process for cooling requirement according to the fine-rolling strip steel different in width, correspondence establishment is corresponding to the finishing stand slit cooling water of band channel width, thus the respective change of realization finishing stand cooling water on strip width.
Summary of the invention
The purpose of this invention is to provide a kind of upper spray cooling device of being located between finishing stand, this device is under the prerequisite that does not affect fine-rolling strip steel cooling stability, with less device fabrication amount and equipment configuration cost, be able to the process for cooling requirement according to the fine-rolling strip steel different in width, correspondence establishment is corresponding to the finishing stand slit cooling water of 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 steel edge portion, guarantee the 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 upper spray cooling device of being located between finishing stand, this device is located at the band steel top of finishing stand entrance side, comprise a collector, arrange along belt steel traffic direction, some row's jet pipes are 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; Some cover plunger assemblies, correspondence are located at described some row's jet pipes top, and described every suit plunger assembly includes:
Some plunger bushings that are set parallel to each other, correspondence is vertical at each jet pipe top of each row respectively, the upper end of described each plunger bushing is passed the collector tube wall and is sealedly and fixedly connected with it, the lower end of described each plunger bushing is be fixedly connected with in order to realization conducting with jet pipe corresponding with the upper end of each jet pipe respectively, be equipped with a water inlet on described each plunger bushing, plunger bushing is by water inlet and collector conducting;
Some plungers, correspondence is located in some plunger bushings respectively, slides along the plunger bushing axial direction and blocks water inlet.
Preferably, the spray cooling device also comprises some drive units on the described finishing stand, corresponding every suit plunger assembly that drives, and described each drive unit is connected with some plungers in described every suit plunger assembly by a bindiny mechanism.
Preferably, described plunger upper end is provided with bulb, and described bindiny mechanism comprises:
One upper plate, its lower surface are provided with some first spherical grooves;
One lower plate is fixedly connected with described upper plate, and described lower plate is provided with second spherical groove that first spherical groove of some correspondences arranges, and described some first spherical grooves and second spherical groove form some spherical grooves, and described some bulb correspondences are located in described some spherical grooves.
Preferably, described drive unit is cylinder, and it is fixed at the top of described plunger assembly by a bracing frame, and the cylinder rod of described cylinder is fixedly connected with the upper surface of described upper plate.
Preferably, also be provided with a positioning sleeve between described plunger bushing and the collector tube wall, the inner and outer wall of described positioning sleeve is sealedly and fixedly connected with plunger bushing and collector tube wall respectively.
Preferably, also be provided with a seal on the described plunger bushing.
The present invention is owing to adopted the described cooling device of above technical scheme, can be according to the process for cooling requirement of fine-rolling strip steel different in width, correspondence establishment is corresponding to the finishing stand slit cooling water of 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 steel edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of the 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 steel edge portion temperature drop effect, thereby when improving the belt steel product quality, greatly reduces production cost.
Description of drawings
Fig. 1 is that the present invention is located at upper spray cooling device between finishing stand and in mm finishing mill unit schematic diagram is set.
Fig. 2 is the structural representation that the present invention is located at the upper spray cooling device between finishing stand.
Fig. 3 is the cutaway view at A-A place among Fig. 2.
Fig. 4 is the structural representation that the present invention is located at plunger in the upper spray cooling device between finishing stand.
Fig. 5 is the structural representation that the present invention is located at plunger bushing in the upper spray cooling device between finishing stand.
Fig. 6 is the structural representation that the present invention is located at upper plate in the upper spray cooling device between finishing stand.
Fig. 7 is the structural representation that the present invention is located at lower plate in the upper spray cooling device between finishing stand.
The specific embodiment
Specifically introduce a kind of preferred embodiment of the present invention below in conjunction with accompanying drawing 1-7.
Such as Fig. 1, shown in be located at the band steel top that upper spray cooling device L between finishing stand is located at finishing stand H entrance side, through overcooled with the rolling lower shaping of steel at roll P.
As shown in Figures 2 and 3, should comprise a collector 1 by upper spray cooling device, collector 1 arranges along belt steel traffic direction, some row's jet pipes are thereon uniform along collector 1 axial direction, each row jet pipe include three jet pipes 4, these three jet pipes 4 are arranged along collector 1 radial direction, all jet pipes 4 all with collector 1 conducting, some cover plunger assemblies, correspondence are located at described some row's jet pipes top.Wherein, every suit plunger assembly includes: three positioning sleeves that are set parallel to each other 5, positioning sleeve 5 are the corresponding top that is vertical at three jet pipes 4 respectively, and the tube wall that positioning sleeve 5 passes collector 1 is fixedly connected with it; Three plunger bushings 6, have on it as shown in Figure 5 61, three plunger bushings 6 of water inlet respectively correspondence be fixed in three positioning sleeves 5, thereby its lower end is fixedly connected with the upper end of several jet pipes 4 is corresponding. realize the conducting with jet pipe 4; Three plungers 7, correspondence is located in three plunger bushings 6 respectively, along the axial direction slip blocking-up water inlet 61 of plunger bushing 6, thereby realizes open and close water inlet 61; Cylinder 3 is located at the top of collector 1 by being fixed at bracing frame 2 fixed mounts on the collector 1, realize by flange 9 location of cylinder 3 on bracing frame 2, cylinder rod 31 is connected with three plungers 7 by bindiny mechanism, thereby realizes three plungers of a cylinder driven in synchronism.
Plunger in this device is bulb plunger as shown in Figure 4, and the upper end of its plunger rod 73 is fixed together the body of rod 73 and bulb 71 by the thread connection of axle journal 72 with the body of rod 73.
Syndeton such as Fig. 3, Fig. 5 and shown in Figure 6 in this device, cylinder rod 31 lower ends are fixedly connected with upper plate 81 by a plate 84, the lower surface of upper plate 81 has three hemispheric grooves 831, three lower plates 82 are fixedly connected with upper plate 81 by screw respectively, have lower semisphere connected in star 832 on the lower plate 82 of itself and upper plate correspondence position, episphere connected in star 831 and the lower semisphere connected in star 832 common ball recess 83 that form, plunger ball 71 just is located in the ball recess 83, in order to realize being connected of plunger and bindiny mechanism.
Device of the present invention in use, by the organ timbering plug of an air cylinder driven with the corresponding setting of row's jet pipe, plunger slides along the plunger tube inwall, thereby realizes the open and close to water inlet, and then realizes the adjusting along strip width direction cooling water inflow.This device can be according to the process for cooling requirement of fine-rolling strip steel different in width, correspondence establishment is corresponding to the finishing stand slit cooling water of 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 steel edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of the 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 steel edge portion temperature drop effect, thereby when improving the belt steel product quality, greatly reduces production cost.
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 (6)
1. upper spray cooling device of being located between finishing stand, be located at the band steel top of finishing stand entrance side, comprise a collector, arrange along belt steel traffic direction, some row's jet pipes, be distributed on the collector along described collector axial direction, each row's jet pipe includes several jet pipes, arranges along described collector radial direction; It is characterized in that the spray cooling device also comprises some cover plunger assemblies on the described finishing stand, correspondence is located at the described jet pipe top of respectively arranging, and described every suit plunger assembly includes:
Some plunger bushings that are set parallel to each other, correspondence is vertical at each jet pipe top of each row respectively, the upper end of described each plunger bushing is run through the collector tube wall and is sealedly and fixedly connected with it, the lower end of described each plunger bushing is be fixedly connected with in order to realization conducting with jet pipe corresponding with the upper end of each jet pipe respectively, be equipped with a water inlet on described each plunger bushing, plunger bushing is by water inlet and collector conducting;
Some plungers, correspondence is located in each plunger bushing respectively, slides along the plunger bushing axial direction and blocks water inlet, and the external diameter of described plunger and the internal diameter of plunger bushing are complementary.
2. the upper spray cooling device of being located between finishing stand as claimed in claim 1, it is characterized in that, also comprise some drive units, corresponding every suit plunger assembly that drives, described each drive unit is connected with each plunger in described every suit plunger assembly by a bindiny mechanism.
3. the upper spray cooling device of being located between finishing stand as claimed in claim 2 is characterized in that, described plunger upper end is provided with bulb, and described bindiny mechanism comprises:
One upper plate, its lower surface are provided with some first spherical grooves;
One lower plate is fixedly connected with described upper plate, and described lower plate is provided with second spherical groove that first spherical groove of some correspondences arranges, and each first spherical groove and second spherical groove form some spherical grooves, and described bulb correspondence is located in each spherical groove.
4. the upper spray cooling device of being located between finishing stand as claimed in claim 3, it is characterized in that, described drive unit is cylinder, and it is fixed at the top of described plunger assembly by a bracing frame, and the cylinder rod of described cylinder is fixedly connected with the upper surface of described upper plate.
5. the upper spray cooling device of being located between finishing stand as claimed in claim 4 is characterized in that, also is provided with a positioning sleeve between described plunger bushing and the collector tube wall, and the inner and outer wall of described positioning sleeve is sealedly and fixedly connected with plunger bushing and collector tube wall respectively.
6. the upper spray cooling device of being located between finishing stand as claimed in claim 5 is characterized in that, described plunger bushing upper end also is provided with a seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010129761 CN102189129B (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 |
|---|---|---|---|
| CN 201010129761 CN102189129B (en) | 2010-03-19 | 2010-03-19 | Upper spray cooling device arranged among finishing mill racks |
Publications (2)
| Publication Number | Publication Date |
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| CN102189129A CN102189129A (en) | 2011-09-21 |
| CN102189129B true CN102189129B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010129761 Active CN102189129B (en) | 2010-03-19 | 2010-03-19 | Upper spray cooling device arranged among finishing mill racks |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780004B2 (en) * | 1988-11-30 | 1995-08-30 | 日新製鋼株式会社 | Hot strip temperature control device and control method |
| CN2394739Y (en) * | 1999-09-27 | 2000-09-06 | 鞍山钢铁学院 | Width adjustable forced cooler for continuous casting machine and continuous rolling machine |
| JP4029865B2 (en) * | 2004-06-04 | 2008-01-09 | 住友金属工業株式会社 | Hot rolled steel sheet manufacturing equipment and hot rolled steel sheet manufacturing method |
| CN201127959Y (en) * | 2007-11-22 | 2008-10-08 | 中国第一重型机械集团公司 | Laminar cooling mechanism of middle-wide strip mill |
| CN100540961C (en) * | 2007-12-14 | 2009-09-16 | 苏州有色金属研究院有限公司 | Air cylinder type injection valve |
| CN201357174Y (en) * | 2009-02-24 | 2009-12-09 | 宝山钢铁股份有限公司 | Laminar flow gradual cooling device |
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2010
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| CN102189129A (en) | 2011-09-21 |
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