CN201664706U - Top spray laminar flow cooling device - Google Patents
Top spray laminar flow cooling device Download PDFInfo
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- CN201664706U CN201664706U CN2010201375825U CN201020137582U CN201664706U CN 201664706 U CN201664706 U CN 201664706U CN 2010201375825 U CN2010201375825 U CN 2010201375825U CN 201020137582 U CN201020137582 U CN 201020137582U CN 201664706 U CN201664706 U CN 201664706U
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- laminar flow
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- tooth bar
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- flow cooling
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Abstract
The utility model introduces a top spray laminar flow cooling device which comprises a plurality of groups of top spray devices; each group of top spray device comprises a header and a plurality of spray pipes; two plunger holes are respectively arranged above both ends of the header, are communicated with all the spray pipes through a plurality of through holes, and are communicated with the header; and two plungers are respectively and correspondingly arranged in the two plungers, and two gear and rack driving devices are respectively connected with the plungers. The device can adjust the area of the cooling water in the width direction of the access according to the cooling process requirements on different widths of strip steel, reduces the temperature drop on the sides of the strip steel, and ensures the uniformity of the shape, the mechanical property, the temperature and the phase change of the strip steel. In addition, compared with the prior art, the top spray laminar flow cooling device greatly simplifies the mechanical setting so as to greatly reduce the cost of production mechanisms and the equipment fault rate.
Description
Technical field
The utility model relates to a kind of cooling facility for laminar flow, relate in particular to a kind of in the hot rolling cooling process one-sided broad-adjustable upper spraying laminar flow cooling device.
Background technology
The hot rolling tandem mill production line of iron and steel enterprise all will use cooling facility for laminar flow, and its major function is exactly the band steel with the finish rolling outlet, cools off fast according to the target temperature that batches setting, to guarantee the properties of product of band steel.
With Baosteel 2050 hot rolling mills is example, and its cooling facility for laminar flow has 76 groups of cooling manifolds (correspondence is a group up and down).Wherein preceding 68 groups is main cold section, and the back is a fine cold-leg for 8 groups.Generally be divided into several cooling zones, each cooling zone all has cold section cooling zone serial connection with fine cold-leg of master separately to form, and the master of cooling zone is made of some groups strong cold collector groups and the some groups of cold collector groups of master again for cold section.The cold model of layer calculate required when opening collector valve group, according to main cold section from front to back, fine cold-leg rule is from back to front set.Therefore,, all need open in each setting, therefore be in normally open basically for back 4 groups of main cold section preceding 4 groups and fine cold-leg to the setting temperature drop of coiling temperature according to finishing temperature; All there are data the position of every group of collector (apart from the last frame of finish rolling) in basic automatization control, basic automatization all needs to follow the tracks of for the position of band steel on the laminar flow roller-way in addition.Its cooling control is as follows:
At first, the process machine calculates by the cold model of layer according to finishing temperature and the coiling temperature set, and that determines main cold section and fine cold-leg cooling manifold opens the group number, and under send instructions and water valve controlled to the finish rolling basic automatization.
Secondly, after the band steel goes out the last frame of finish rolling temperature measurer measures the finishing temperature of band steel reality after by finish rolling, again the group number of opening of cooling manifold is regulated accordingly.
At last, after the batching temperature measurer and measure the actual coiling temperature of band steel after layer is cold, dynamically the laminar flow cooling manifold is opened the group number and regulates according to the desired value of setting of batching, with the coiling temperature that guarantees the band steel in setting range.It is 5 degree that the cooling water inflow of each valve group can be controlled belt steel temperature.
Hot Strip shape is the quality problems of users' special concern always, the good and bad use that directly influences product of strip shape quality, especially in recent years along with the fast development of steel and iron industry, the belt steel product application is constantly expanded, and the user also improves day by day to the requirement of its strip shape quality.
Hot rolling line constantly develops, and production kind, specification enlarge gradually, and present product structure in the past based on straight carbon steel, is mainly produced micro alloyed steel and carbon manganese steel with completely different in the past at present.Existing laminar cooling system, 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 after process laminar flow cooled region, because existing laminar cooling system exists the hydraulic pressure shakiness, problems such as current skewness cause the inhomogeneous cooling of band steel, thereby cause being with steel a series of strip shape quality problems to occur, in the rolling line production process, find the band steel easily because the C that inhomogeneous cooling causes sticks up, the plate deformationization that causes with the width inhomogeneous cooling, especially the reduction of limit portion temperature produces the internal stress of bringing bilateral unrestrained trend than conference in follow-up cooling procedure, gives the plate shape of band steel, mechanical performance, temperature and phase transformation all can bring very big influence in the uniformity of width.
The laminar flow cooling mainly is by phase transformation, stress and thermal conductivity to the influence of plate shape.At home and abroad relatively effective measures are exactly the edge-masking device, and effect is apparent in view.At present, domestic mainly is the EDGER MASKING edge-masking The Application of Technology of German SMS-DMG, adjusts the shutter of laminar flow cooling upper spray cooling water width by oil cylinder control link mechanism.The SMS company edge-masking The Application of Technology introduced in the construction project of two wires in 2003 of Handan Iron and Steel Co hot rolling CSP production line for example, the precious hot rolling 2250mm in Handan produces the line application of also succeeding.
Mitsubishi Heavy Ind. Ltd.'s disclosed patent on December 17th, 2002 " band cooling device " patent No. JP2002361316A, its scheme is when laminar flow cools off the cooling water of strip edge portion to be collected to improve the temperature of strip edge portion by aqua storage tank, and the cooling water that aqua storage tank is collected is then discharged by special-purpose drainpipe.Obviously, there is one shortcoming in this technology: when producing than ribbon steel, a large amount of cooling waters waste.
Kawasaki, Japan water island factory just carried out about the laminar flow edge-masking improving the research of plate shape as far back as the eighties in 20th century, Kawasaki Steel Corp. applies for a patent " cooling means of sheet metal strip and device " (open day 1987.12.16 of application in China, patent publication No. CN87100594), its cooling facility for laminar flow adopts the laminar flow jet pipe of being made up of the flat board member of a pair of qualification slit, cooling water flows through this slit and forms a cooling water screen, for regulating the passage area in this jet pipe, the flat board member of this laminar flow jet pipe has at least one can be out of shape on perpendicular to the direction of flow of cooling water, have at least a flat board to respond cooling water pressure preferably, cause that passage area changes, thereby regulate the cooling-water duct zone.The method adopts the method to laminar flow cooling manifold edge-masking, strip edge portion temperature is reduced big problem a solution is provided, but also there is weak point in this method, obviously, the shortcoming of this prior art is: when producing than ribbon steel, a large amount of cooling waters waste, and are unfavorable for the saving of the resources of production.
In addition, prior art improves strip edge portion method of temperature, its principle all is to adopt laminar flow cooling manifold limit portion is carried out blocking of certain width, and strip edge portion temperature is reduced big problem provides a solution, but also there is common weak point in this method:
1. waste resource: when producing than ribbon steel, a large amount of cooling waters that are blocked waste, and are unfavorable for the saving of the resources of production, consume the electricity charge, increase cost of water treatment.
2. influence environment: laminar flow cooling shutter brings adverse effect to the cooling water of both sides shunting to motor and laminar flow roller bed bearing seat, though taked deflector, but still to a certain extent deterioration environment that should the place.
3. fault rate height: during strip running deviation, the both sides edge-masking can not be adjusted synchronously, and when strip running deviation was big, the edge-masking of a side just can't be brought into play the effect of blocking, and can not normally use when causing strip running deviation.
4. mechanism blockage: the laminar flow cooler environment is abominable, and the stuck fault of linkage often takes place.
5. precision is not high: the shutter of this linkage is yielding, and it is undesirable often to cause both sides to block precision.
6. pile the steel rapid wear: when heap steel fault took place the laminar flow cooling section, linkage and shutter easily caused distortion or damage.
7. not having spray down blocks: this linkage can't be applied to down the cooling of spray-up stream, does not have spray-up stream radical occlusion device down, and band steel upper and lower surface inhomogeneous cooling is even, also can cause certain strip edge portion shape wave.
So, the inventor has designed a kind of plunger-type upper spraying laminar flow cooling device, it can be according to the process for cooling requirement of band steel different in width, the corresponding slit laminar flow of setting up corresponding to the band channel width, realize the respective change of laminar flow cooled region on width, thereby regulate the zone of cooling water on channel width direction, guarantee strip quality.Yet through actual production after a while, the inventor finds this device because the drive mechanism more complicated, and fault rate is higher aborning, and it is also higher to carry out the cost of equipment configuration, is unfavorable for saving production cost.
Summary of the invention
The purpose of this utility model provides a kind of upper spraying laminar flow cooling device, this device can be according to the process for cooling requirement of band steel different in width, the corresponding slit laminar flow of setting up corresponding to the band channel width, realize the respective change of laminar flow cooled region on width, thereby regulate the zone of cooling water on channel width direction, overcome in the prior art laminar cooling system strip width direction is existed cooling phenomenon pockety, reduce the temperature drop of strip edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of steel uniformity at width.The more existing plunger-type upper spraying laminar flow cooling device structure of this device advantages of simple more in addition more can guarantee the stability of drive unit work can also reduce device fabrication amount and equipment configuration cost greatly simultaneously, reduces the rate of breakdown of equipment.
To achieve these goals, the utility model provides a kind of upper spraying laminar flow cooling device, and this device comprises spray apparatus on some groups, and each group goes up spray apparatus and comprises: a collector is provided with along belt steel traffic direction; Some jet pipes are distributed on each collector; The plunger hole of two tail ends sealings is located at the top, two ends of collector respectively, and described plunger hole is by some through holes and each jet pipe conducting, described plunger hole also with the collector conducting; Two plungers are provided with respectively in two plunger holes, the described through hole of movable blocking-up; Collector on described some groups in the spray apparatus is set parallel to each other; And some drive motors; In addition, the last spray apparatus of each group also comprises:
Two cover drive units are located at the two ends of described collector respectively, and are connected with two plungers respectively, and described every suit drive unit includes:
One rack gear arrangement is located at described collector top, and described rack gear arrangement comprises a tooth bar, and described tooth bar and described plunger be arranged in parallel;
One synchronous guide plate, it is fixedlyed connected with the tooth bar outer end with described plunger outer end respectively at two ends up and down;
One driving gear device is provided with near top, collector end, and described driving gear device comprises a driving gear, and itself and described tooth bar mesh.
Preferably, described rack gear arrangement comprises a guide holder, and guide holder is provided with axially directed groove, described tooth bar is a T type tooth bar, and its radial section is the T type, the head of described T type tooth bar and driving gear engagement, the afterbody of T type tooth bar is located in the described gathering sill, realizes the relative slip with gathering sill.
Preferably, described drive unit comprises: a balance gear device, be fixed at collector top, and the inboard of driving gear device, described balance gear device comprises a balance gear, its head with described tooth bar meshes.
Preferably, the guide holder of described rack gear arrangement is fixed at described collector top by a base plate.
Preferably, described driving gear device comprises a bearing holder device, is fixed on the described base plate, is used for described driving gear is positioned.
Preferably, described balance gear device comprises another bearing holder device, is fixed on the described base plate, is used for described balance gear is positioned.
Preferably, described rack-and-pinion upper spraying laminar flow cooling device comprises some twin shaft torque output motors, and wherein two outputs of each twin shaft torque output motor are connected with two driving gears of the collector homonymy that is positioned at two adjacent settings by power transmission shaft respectively.
Preferably, described rack-and-pinion upper spraying laminar flow cooling device comprises some single shaft torque output motors, and wherein each single shaft torque output motor all is connected with a driving gear by power transmission shaft.
The utility model is owing to adopted above technical scheme, enable process for cooling requirement according to band steel different in width, the corresponding slit laminar flow of setting up corresponding to the band channel width, realize the respective change of laminar flow cooled region on width, thereby regulate the zone of cooling water on channel width direction, reduce the temperature drop of strip edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of steel uniformity at width.In addition, the utility model has been simplified mechanism's configuration of device compared to prior art greatly, thereby reduced mechanism cost is set, and has reduced equipment failure rate.
Description of drawings
Fig. 1 is the structural representation of a kind of upper spraying laminar flow cooling device of the utility model.
Fig. 2 is a device left side structure enlarged drawing shown in Figure 1.
Fig. 3 is the structural representation of driving gear device in a kind of upper spraying laminar flow cooling device of the utility model.
Fig. 4 is the structural representation of balance gear device in a kind of upper spraying laminar flow cooling device of the utility model.
Fig. 5 is the assembling schematic diagram of a kind of upper spraying laminar flow cooling device of the utility model.
Fig. 6 is the cutaway view of Fig. 5 at the A-A place.
The specific embodiment
Specifically introduce a kind of preferred embodiment of the present utility model below in conjunction with accompanying drawing 1-6.
As depicted in figs. 1 and 2, upper spraying laminar flow cooling device in the present embodiment, comprise spray apparatus on some groups, each group goes up spray apparatus and includes: the collector 1 that fixedly installs along belt steel traffic direction, be evenly equipped with some gooseneck jet pipes 8 on the collector 1, crossbeam 2 is divided into two sections tops, two ends that are arranged on collector 1, crossbeam 2 vertically is provided with some through holes, be used for conducting collector 1 and each gooseneck jet pipe 8, crossbeam 2 along continuous straight runs are provided with plunger hole 31, plunger hole 31 is conducted with through hole, the diameter of plunger hole 31 is more than or equal to the diameter of through hole, and plunger 3 is arranged in the plunger hole 31, and its diameter and plunger hole 31 are complementary, this device is blocked respective through hole by moving of plunger 3 along continuous straight runs, to realize the adjusting of cooling water width.The drive unit of this device comprises rack gear arrangement 5, driving gear device 6 and balance geared system 7, and the mobile of plunger 3 is by realizing via the moving of rack gear arrangement 5 that synchronous plate 4 is connected with it.The upper and lower of synchronous plate 4 has a groove, and the outer end of plunger 3 and tooth bar outer end are distinguished in the insertion groove, and is fixed on the synchronous plate 4 by pin-and-hole 41 and steady pin 42, has so just realized being synchronized with the movement of tooth bar and plunger 3.
As shown in Figure 3, the driving gear device is fixed near on the crossbeam 2 above collector 1 end by first base plate 11 and bearing holder device.Two angle bar 9 are symmetrically welded at the both sides of crossbeam 2, and the top that angle bar 9 is close to crossbeam 2 forms a plane, is set with first base plate 11 by screw 12 on it, for increasing support strength, some gussets 10 are set at interval in the angle bar 9.Main drive gear bearing 63 is fixed on first base plate 11 by the bearing rib 61 and second base plate 62, is used for the installation location of driving gear 64.Driving gear 64 and tooth bar 52 engagements.Rack gear arrangement comprises that the cross section is the tooth bar 52 and the guide holder 51 of T type, and guide holder 51 in axial direction is provided with gathering sill, the T connector portion of tooth bar 52 and driving gear 64 engagements, and afterbody is located in the gathering sill and is slided.Driving gear 64 drives tooth bar 52 along the rectilinear direction move left and right under the drive of power transmission shaft 13, thereby realizes that the plunger 3 that is synchronized with the movement with tooth bar 52 moves.
Balance gear device as shown in Figure 4 is fixed near on the crossbeam 2 above collector 1 center position by first base plate 11 and bearing holder device.Equally, angle bar 9, screw 12, first base plate 11 and gusset 10 are used for the fixed installation of balance gear device.Balance gear bearing 73 is fixed on first base plate 11 by bearing rib 71 and the 3rd base plate 72, is used for the installation location of balance gear 74.Balance gear 74 and tooth bar 52 engagements.Balance gear 74 can be avoided tooth bar 52 perks, the balance when keeping 52 engagements of driving tooth wheel and rack and stable.
As shown in Figure 5 and Figure 6, the drive motors in this cooling facility for laminar flow 14 is a twin shaft torque output motor.Drive motors 14 two ends are respectively by shaft coupling 15 and power transmission shaft 13 and the two adjacent collectors that be arranged in parallel, i.e. second collector and the 3rd collector, driving gear in the driving gear device 6 of homonymy connects, the one-sided driving gear of first collector is connected by the one-sided driving gear of power transmission shaft 16 and second collector again, the 4th driving gear that collector is one-sided is connected with the 3rd driving gear that collector is one-sided by power transmission shaft 16, thereby realize that four driving gears of a motor-driven rotate, and realize power output.This assembly structure all connects the assembly structure of a motor than existing every suit drive unit, and the configuration amount of having reduced motor has greatly reduced production equipment cost and maintenance cost.
Device described in the utility model in use, provide torque output by motor, thereby driving rotating shaft rotates, rotating shaft is given connected driving gear with torque transfer, thereby drive tooth bar along the rectilinear direction move left and right, and then be with, thereby the adjusting of realization cooling water width with the same moved further of plunger.This shows that this device upper spraying laminar flow cooling device has before been simplified device structure, greatly reduces equipment configuration cost and maintenance cost, has good implementation result.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model 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 utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (6)
1. a upper spraying laminar flow cooling device comprises spray apparatus on some groups, and each group goes up spray apparatus and comprises: a collector is provided with along belt steel traffic direction; Some jet pipes are distributed on each collector; The plunger hole of two tail ends sealings is located at the top, two ends of collector respectively, and described plunger hole is by some through holes and each jet pipe conducting, described plunger hole also with the collector conducting; Two plungers are provided with respectively in two plunger holes, the described through hole of movable blocking-up; Collector on described some groups in the spray apparatus is set parallel to each other; It is characterized in that described each group goes up spray apparatus and also comprises:
Two cover drive units are located at the two ends of described collector respectively, and are connected with two plungers respectively, and described every suit drive unit includes:
One rack gear arrangement is located at described collector top, and described rack gear arrangement comprises a tooth bar, and described tooth bar and described plunger be arranged in parallel;
One synchronous plate, it is fixedlyed connected with the tooth bar outer end with described plunger outer end respectively at two ends up and down;
One driving gear device is provided with near top, collector end, and described driving gear device comprises a driving gear, and itself and described tooth bar mesh.
2. upper spraying laminar flow cooling device as claimed in claim 1, it is characterized in that, described rack gear arrangement also comprises a guide holder, guide holder is provided with axially directed groove, described tooth bar is a T type tooth bar, and its radial section is the T type, the head of described T type tooth bar and driving gear engagement, the afterbody of T type tooth bar is located in the described gathering sill, realizes the relative slip with gathering sill.
3. upper spraying laminar flow cooling device as claimed in claim 2, it is characterized in that described drive unit also comprises: a balance gear device is fixed at driving gear device inboard, described collector top, described balance gear device comprises a balance gear, the head engagement of itself and described tooth bar.
4. upper spraying laminar flow cooling device as claimed in claim 3 is characterized in that, described guide holder is fixed at described collector top by a base plate.
5. upper spraying laminar flow cooling device as claimed in claim 4, it is characterized in that, described rack-and-pinion upper spraying laminar flow cooling device also comprises some twin shaft torque output motors, and wherein two outputs of each twin shaft torque output motor are connected with two driving gears of the collector homonymy that is positioned at two adjacent settings by power transmission shaft respectively.
6. upper spraying laminar flow cooling device as claimed in claim 5, it is characterized in that, described rack-and-pinion upper spraying laminar flow cooling device also comprises some single shaft torque output motors, and wherein each single shaft torque output motor all is connected with a driving gear by power transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375825U CN201664706U (en) | 2010-03-19 | 2010-03-19 | Top spray laminar flow cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375825U CN201664706U (en) | 2010-03-19 | 2010-03-19 | Top spray laminar flow cooling device |
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| Publication Number | Publication Date |
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| CN201664706U true CN201664706U (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201375825U Expired - Lifetime CN201664706U (en) | 2010-03-19 | 2010-03-19 | Top spray laminar flow cooling device |
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| CN (1) | CN201664706U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259118A (en) * | 2011-07-01 | 2011-11-30 | 中冶赛迪工程技术股份有限公司 | Method for improving cooling uniformity of rolling piece and device for uniformly cooling rolling piece |
| CN107282660A (en) * | 2016-03-31 | 2017-10-24 | 宝山钢铁股份有限公司 | Reduce the laminar flow cooling upper spray blocking device of pressure oscillation |
| CN111971131A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
-
2010
- 2010-03-19 CN CN2010201375825U patent/CN201664706U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259118A (en) * | 2011-07-01 | 2011-11-30 | 中冶赛迪工程技术股份有限公司 | Method for improving cooling uniformity of rolling piece and device for uniformly cooling rolling piece |
| CN102259118B (en) * | 2011-07-01 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Method for improving cooling uniformity of rolling piece and device for uniformly cooling rolling piece |
| CN107282660A (en) * | 2016-03-31 | 2017-10-24 | 宝山钢铁股份有限公司 | Reduce the laminar flow cooling upper spray blocking device of pressure oscillation |
| CN111971131A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |