CN105268750A - Head and tail rapid shielding device, system and method for moderate-thickness plate cooling system - Google Patents
Head and tail rapid shielding device, system and method for moderate-thickness plate cooling system Download PDFInfo
- Publication number
- CN105268750A CN105268750A CN201510822852.3A CN201510822852A CN105268750A CN 105268750 A CN105268750 A CN 105268750A CN 201510822852 A CN201510822852 A CN 201510822852A CN 105268750 A CN105268750 A CN 105268750A
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- China
- Prior art keywords
- water fender
- cooling system
- cut deal
- shading device
- bucket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Abstract
The invention relates to the technical field of steel plate hot rolling and cooling, in particular to a head and tail rapid shielding device, system and method for a moderate-thickness plate cooling system. The shielding device is installed below a cooling manifold and comprises a water bucket, two sliding shafts arranged in parallel and an air cylinder. The two sliding shafts are sleeved with the two ends of the water bucket through connecting pieces respectively. A push rod of the air cylinder is connected with the connecting pieces and drives the water bucket to slide on the sliding shafts. At least one end of the bottom of the water bucket is provided with an overflow gap. The air cylinder of the shielding device is controlled by a PLC, and when a steel plate passes from the portion below the cooling manifold, the part/parts, at the head and/or the tail of the steel plate, of the cooling manifold is/are shielded or not shielded. The problem of steel plate head and tail overcooling caused by rapid temperature decrease of the head and the tail of the steel plate in the cooling process of the steel plate can be solved in a compensation manner, and therefore the cooling uniformity of the moderate-thickness plate is improved; and response time is short, cooling water can be completely intercepted within 0.2 second, and the steel quality can be obviously improved.
Description
Technical field
The present invention relates to hot-rolled steel plate cooling technology field, particularly relate to a kind of cut deal cooling system quick shading device, masking system and screen method end to end.
Background technology
Controlled rolling and controlled cooling technology is used widely in hot rolling iron and steel is produced as the important process technology improving product structure property.Controlled rolling is on the basis of the chemical composition of adjustment steel, by controlling the technological parameters such as heating-up temperature, rolling temperature, deformation system, controls the structural state of austenitic state and phase-change product, thus reaches the object controlling steel structure property.Controlled cooling model realizes controlling phase change conditions, Carbide Precipitation behavior and austenite structure state by the cooling condition after controlling hot-strip and rolling, thus obtain desirable structure and properties.
In recent years, along with intensity of cooling strengthen, cooldown rate improve, the residual stress brought due to inhomogeneous cooling and plate shape problem particularly outstanding.Can say that the Strip Shape Control under high strength cooling condition has become the bottleneck problem utilizing TMCP technology to carry out hot-rolling high-strength steel production.
In Plate Rolling Process, often there is low-temperature region in steel plate head and afterbody, cooling system adopts flow-control or collector opening and closing to realize the Special controlling of steel plate low-temperature zone end to end usually, reduces cooling water to steel plate supercooling end to end, alleviates the impact that inhomogeneous cooling brings.
But aforesaid way is often subject to the impact of the factors such as valve response speed, way of supplying water and corresponding time, often there is certain hysteresis quality, even if namely close respective valves, but owing to also leaving water in cooling manifold, still can carry out the cooling of a period of time, therefore can not meet the demand of high-speed cruising steel plate low-temperature space Special controlling end to end.
Summary of the invention
The object of the present invention is to provide a kind of cut deal cooling system quick shading device, masking system and screen method end to end, steel plate can be compensated in cooling procedure, due to steel plate end to end temperature drop comparatively fast occur steel plate head, tail sub-cooled problem, can improve cut deal cooling uniformity.
Cut deal cooling system provided by the invention quick shading device end to end, is arranged on the below of cooling manifold, comprises: bucket, two sliding axles be arranged in parallel and cylinder;
The two ends of described bucket are socketed on described two sliding axles respectively by connector; The push rod of described cylinder is connected with connector, drives bucket to slide on sliding axle;
The bottom of bucket at least arranges gap in one end.
Covering cooling manifold is realized by bucket, can the spray of selectable controlled cooling model water fast, avoid the sub-cooled to steel plate local.
In the preferred technical solution of the present invention, the water fender of downward-sloping layout is also installed in described bucket.
Water fender can prevent the cooling water sprayed from splashing, and reduces the flow velocity of cooling water, and it is played to the effect of drainage.
In the preferred technical solution of the present invention, described water fender comprises the first water fender and the second water fender;
The outward flange of the first water fender and the second water fender is separately fixed on two sidewalls of bucket, all to the inner inclination of bucket; And the first water fender and the second water fender interlaced arrangement, space is left in centre.
In the preferred technical solution of the present invention, compared with the second water fender, the width of described first water fender is comparatively large, and angle of inclination is less; The inward flange of the first water fender and the second water fender is positioned on same vertical plane, and the inward flange of the first water fender is positioned at below the inward flange of the second water fender.
In the preferred technical solution of the present invention, compared with the second water fender, the length of described first water fender is less.
In the preferred technical solution of the present invention, inward flange and the outward flange of described first water fender arrange some breach respectively; The outward flange of described second water fender arranges some breach.
By the further design optimization to block water plate structure, better can play the effect of Anti-splash and drainage, cooling water is discharged from the gap bottom bucket completely, stably.
In the preferred technical solution of the present invention, in described bucket, the U-shaped water fender extended to bucket center from bucket inwall is also set between the second water fender and gap.
U-shaped water fender can reduce the flow velocity of gap place cooling water, makes it steadily overflow.
In the preferred technical solution of the present invention, described cylinder is high-speed cylinder, and stretching speed is 2m/s ~ 5m/s.
Cylinder adopts high-speed cylinder, can complete the switching of covering and not covering between two states rapidly, and its reaction speed is fast, can block cooling water within the extremely short time.
Cut deal cooling system provided by the invention quick shading system end to end, comprises the cut deal cooling system quick shading device end to end described at least two groups; The cut deal cooling system of at least two groups end to end quick shading device is arranged on the below of cooling manifold side by side, and the cylinder of each group cut deal cooling system quick shading device end to end is in height crisscross arranged, and avoids mutual interference.
Adopt and organize masking device more, covering steel plate any part can be realized simultaneously, thus realize controlling the quick cooling of steel plate arbitrary region.
Masking methods based on described cut deal cooling system quick shading device end to end provided by the invention, be specially: at least one group of cut deal cooling system quick shading device is end to end set in the below of cooling manifold, and the cylinder of each cut deal cooling system quick shading device is end to end controlled by PLC, steel plate below cooling manifold by time, to the action that the cooling manifold of steel plate head and/or afterbody covers or do not cover.
Controlled by PLC, fast response time, action control is accurate; And can arrange according to the steel plate of different size, model and technique and different cover scheme, realize automation mechanized operation.
The preferred technical solution of the present invention is, described cut deal cooling system end to end quick shading device is no more than 0.2 second at shielding status and the switching time not between shielding status.
Beneficial effect of the present invention is:
The present invention can compensate steel plate in cooling procedure, due to steel plate end to end temperature drop comparatively fast occur steel plate head, tail sub-cooled problem, thus improve cut deal cooling uniformity.Compared to the existing control mode passing through flow-control or collector opening and closing, response time of the present invention is rapid, retaining completely cooling water can be completed in 0.2 second, simple to operate, precise control is convenient, thus better cooling scheme can be formulated to medium plate, significantly can improve steel product quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The axis side view of the cut deal cooling system that Fig. 1 provides for embodiment of the present invention quick shading device end to end;
Fig. 2 is the front view of the quick shading device end to end of the cut deal cooling system shown in Fig. 1;
Fig. 3 is the left view of the quick shading device end to end of the cut deal cooling system shown in Fig. 1;
Fig. 4 is the top view of the quick shading device end to end of the cut deal cooling system shown in Fig. 1;
The axis side view of the cut deal cooling system that Fig. 5 provides for the embodiment of the present invention the first angle of the bucket of quick shading device end to end;
The axis side view of the cut deal cooling system that Fig. 6 provides for the embodiment of the present invention the second angle of the bucket of quick shading device end to end;
The cross section view of the cut deal cooling system that Fig. 7 provides for the embodiment of the present invention bucket of quick shading device end to end;
Fig. 8 is two groups of cut deal cooling systems schematic diagrames of being arranged symmetrically with of quick shading device end to end;
Fig. 9 uses the described cut deal cooling system state artwork that covers steel plate head of quick shading device end to end;
Figure 10 uses the described cut deal cooling system state artwork that do not cover steel plate head of quick shading device end to end;
Figure 11 uses the described cut deal cooling system state artwork that covers steel plate tail of quick shading device end to end;
Figure 12 uses the described cut deal cooling system state artwork that do not cover steel plate tail of quick shading device end to end.
Reference numeral:
1-bucket; 2-sliding axle;
3-bearing; 4-bearing connecting bolt;
5-positive stop; 6-sliding axle connecting bolt;
7-connector; 8-cylinder;
9-cylinder saddle; 10-cylinder connecting bolt;
11-positive stop connecting bolt; 12-first water fender;
13-second water fender; 14-gap;
15-copper base embedded self-lubricating bearing; 16-U shape water fender;
17-cooling manifold; 18-quick shading device;
19-conveying roller; 20-steel plate.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Cut deal cooling system provided by the invention end to end quick shading device as shown in Figure 1 to 4, its structure mainly comprises: bucket 1, two sliding axles 2 be arranged in parallel and cylinder 8.
Two ends passing hole and the bearing arrangement of bucket 1 are fitted on parallel sliding axle 2, and the two ends of two sliding axles 2 are fixed on bearing 3 respectively by sliding axle connecting bolt 6; Bearing 3 is fixed on the cover plate below cooling manifold by bearing connecting bolt 4.Positive stop 5 is fixed on the below of bearing 3 by positive stop connecting bolt 11.One end of cylinder 8 is fixed on bucket 1, and the other end is connected on cylinder saddle 9 by cylinder connecting bolt, and cylinder saddle 9 is fixed on the cover plate of cooling manifold equally.
Like this, cylinder 8 can drive bucket 1 to slidably reciprocate on sliding axle 2, thus makes bucket 1 realize covering cooling manifold, can the spray of selectable controlled cooling model water fast, avoids the sub-cooled to steel plate local.
Fig. 5 and Fig. 6 is respectively the axis side view of the different angles of bucket 1, and Fig. 7 is the cross section view of bucket 1.
The two ends of bucket 1 arrange one group of copper base embedded self-lubricating bearing 15, respectively to realize the slip on sliding axle 2.
The water fender of downward-sloping layout is also installed in bucket 1, and gap 14 is set respectively at the two ends, bottom of bucket 1.
Water fender can prevent the cooling water sprayed from splashing, and reduces the flow velocity of cooling water, and it is played to the effect of drainage.
In a preferred embodiment of the invention, water fender comprises the first water fender 12 and the second water fender 13.
The outward flange of the first water fender 12 and the second water fender 13 is separately fixed on two sidewalls of bucket 1, and all to the inner inclination of bucket 1; First water fender 12 and the second water fender 13 interlaced arrangement, space is left in centre, and Cooling Water passes through.
Compared with the second water fender 13, the width of the first water fender 12 is comparatively large, and angle of inclination is less; The inward flange of the first water fender 12 and the second water fender 13 is positioned on same vertical plane, and the inward flange of the first water fender 12 is positioned at below the inward flange of the second water fender 13.
In general, in the cross-sectional direction of bucket 1 (angle views to overlook), the width of the first water fender 12 can account for 2/3 ~ 3/4, and remaining part is the second water fender 13.
From angle of inclination, the inclination angle of the first water fender 12 is generally between 20 ° ~ 35 °, and the inclination angle of the second water fender 13 is generally between 30 ° ~ 50 °.
In addition, compared with the second water fender 13, the length of the first water fender 12 is less, more contributes to preventing cooling water from splashing.
By the optimal design to two block water plate structures, size and position, better can play the effect of Anti-splash and drainage, cooling water is discharged from the gap bottom bucket completely, stably.
In a preferred embodiment of the invention, inward flange and the outward flange of the first water fender 12 arrange some breach respectively, and the outward flange of the second water fender 13 arranges some breach.When cooling water flow is larger, can flow down from this few gap position, prevent cooling water from overflowing from bucket 1.
In a preferred embodiment of the invention, the U-shaped water fender 16 extended to bucket center from bucket inwall is also set between the second water fender 13 and gap 14.
U-shaped water fender 16 can reduce the flow velocity of gap 14 place cooling water, makes it steadily overflow.
In a preferred embodiment of the invention, bucket 1 is weldment, primarily of 10 pieces of difform Plate Welding compositions.During work, the water that cooling manifold sprays can be caught by bucket 1, and flows in bucket 1 along the first water fender 12 and the second water fender 13, and the gap 14 through both sides flows to the both sides of cooling manifold.Production technology is taked necessary welding tooling avoid workpiece deformation, remove stress, rear zinc-plated, then carry out machined.
The cut deal cooling system end to end operation principle of quick shading device mainly promotes bucket 1 by PLC control element control cylinder 8 and on sliding axle 2, carries out stretching motion complete covering and do not cover two states cooling manifold.Cylinder 8 is high-speed cylinder, and stretching speed is 2m/s ~ 5m/s.Because the expanding-contracting action of cylinder 8 is rapid, extended and retract in about 0.2 second, can the current of prevention steel plate head efficiently and effectively and afterbody.
In cut deal cooling system, quick shading device below can all arrange one group of masking device what often organize collector end to end, but according to technological requirement, controls often to organize with PLC control element the manner of execution that masking device end to end covers and regain respectively.Can by one group during work, two or more sets masking devices participate in masking work.
The present invention designs two groups, and the mode that is arranged symmetrically with of masking device is as shown in Figure 8 end to end.Because masking device will promote bucket 1 by cylinder 8 carry out stretching motion on sliding axle 2 during work, and then complete the two states that water receiving covers and do not cover, so when two cylinder 8 mounting designs, to stagger up and down, can not be in the same horizontal line, in order to avoid affect the retraction stroke of cylinder, save space.
Fig. 9 ~ Figure 12 is respectively and uses the described cut deal cooling system quick shading device state artwork that covers steel plate head and afterbody and do not cover end to end.
Steel plate 20 is carried along conveying roller 19, and when the head movement of steel plate is to the below of cooling manifold 17, quick shading device 18, under the driving of cylinder 8, covers the cooling manifold 17 of steel plate 20 above-head, avoids supercooled problem, as shown in Figure 9.
If when needing to cool steel plate 20 head, then do not cover corresponding cooling manifold 17, as shown in Figure 10.
In like manner, covering of steel plate 20 afterbody is also operated in the same way with not covering, specifically sees Figure 11 and Figure 12.
The present invention can compensate steel plate in cooling procedure, due to steel plate end to end temperature drop comparatively fast occur steel plate head, tail sub-cooled problem, thus improve cut deal cooling uniformity.Compared to the existing control mode passing through flow-control or collector opening and closing, response time of the present invention is rapid, retaining completely cooling water can be completed in 0.2 second, simple to operate, precise control is convenient, thus better cooling scheme can be formulated to medium plate, significantly can improve steel product quality.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a cut deal cooling system quick shading device end to end, is characterized in that, be arranged on the below of cooling manifold, comprise: bucket, two sliding axles be arranged in parallel and cylinder;
The two ends of described bucket are socketed on described two sliding axles respectively by connector; The push rod of described cylinder is connected with connector, drives bucket to slide on sliding axle;
The bottom of bucket at least arranges gap in one end.
2. cut deal cooling system according to claim 1 quick shading device end to end, is characterized in that, be also provided with the water fender of downward-sloping layout in described bucket.
3. cut deal cooling system according to claim 2 quick shading device end to end, is characterized in that, described water fender comprises the first water fender and the second water fender;
The outward flange of the first water fender and the second water fender is separately fixed on two sidewalls of bucket, all to the inner inclination of bucket; And the first water fender and the second water fender interlaced arrangement, space is left in centre.
4. cut deal cooling system according to claim 3 quick shading device end to end, is characterized in that, compared with the second water fender, the width of described first water fender is comparatively large, and angle of inclination is less; The inward flange of the first water fender and the second water fender is positioned on same vertical plane, and the inward flange of the first water fender is positioned at below the inward flange of the second water fender.
5. cut deal cooling system according to claim 3 quick shading device end to end, is characterized in that, compared with the second water fender, the length of described first water fender is less.
6. cut deal cooling system according to claim 3 quick shading device end to end, is characterized in that, inward flange and the outward flange of described first water fender arrange some breach respectively; The outward flange of described second water fender arranges some breach.
7. cut deal cooling system according to claim 1 quick shading device end to end, is characterized in that, described cylinder is high-speed cylinder, and stretching speed is 2m/s ~ 5m/s.
8. a cut deal cooling system quick shading system end to end, is characterized in that, comprises the cut deal cooling system quick shading device end to end described at least two any one of group claim 1 ~ 7; The cut deal cooling system of at least two groups end to end quick shading device is arranged on the below of cooling manifold side by side, and the cylinder of each group cut deal cooling system quick shading device end to end is in height crisscross arranged, and avoids mutual interference.
9. the masking methods based on the quick shading device end to end of the cut deal cooling system described in any one of claim 1 ~ 7, it is characterized in that, at least one group of cut deal cooling system quick shading device is end to end set in the below of cooling manifold, and the cylinder of each cut deal cooling system quick shading device is end to end controlled by PLC, steel plate below cooling manifold by time, to the action that the cooling manifold of steel plate head and/or afterbody covers or do not cover.
10. masking methods according to claim 9, is characterized in that, described cut deal cooling system end to end quick shading device is no more than 0.2 second at shielding status and the switching time not between shielding status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822852.3A CN105268750B (en) | 2015-11-23 | 2015-11-23 | Cut deal cooling system quick shading device, masking system and screen method end to end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822852.3A CN105268750B (en) | 2015-11-23 | 2015-11-23 | Cut deal cooling system quick shading device, masking system and screen method end to end |
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| Publication Number | Publication Date |
|---|---|
| CN105268750A true CN105268750A (en) | 2016-01-27 |
| CN105268750B CN105268750B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510822852.3A Active CN105268750B (en) | 2015-11-23 | 2015-11-23 | Cut deal cooling system quick shading device, masking system and screen method end to end |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108723104A (en) * | 2017-04-17 | 2018-11-02 | 上海梅山钢铁股份有限公司 | A kind of laminar flow collector cooling water inflow control device |
| CN109530461A (en) * | 2018-10-30 | 2019-03-29 | 中冶京诚工程技术有限公司 | The not cold segment length control method and device of high line Water cooling |
| CN111971130A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
| CN114472548A (en) * | 2020-10-23 | 2022-05-13 | 宝山钢铁股份有限公司 | System and method for reducing head-tail temperature difference in rolling process of super-long plate |
| CN115532855A (en) * | 2022-10-10 | 2022-12-30 | 江苏东方成套设备制造集团有限公司 | Continuous through water cooling device |
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| CN103331313A (en) * | 2013-07-23 | 2013-10-02 | 中冶赛迪工程技术股份有限公司 | Hot-rolled steel plate cooling device and cooling method thereof |
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| EP1624078A1 (en) * | 2004-08-04 | 2006-02-08 | Ebner Industrieofenbau Gesellschaft m.b.H. | Apparatus for cooling sheet metal strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108723104A (en) * | 2017-04-17 | 2018-11-02 | 上海梅山钢铁股份有限公司 | A kind of laminar flow collector cooling water inflow control device |
| CN111971130A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
| CN109530461A (en) * | 2018-10-30 | 2019-03-29 | 中冶京诚工程技术有限公司 | The not cold segment length control method and device of high line Water cooling |
| CN114472548A (en) * | 2020-10-23 | 2022-05-13 | 宝山钢铁股份有限公司 | System and method for reducing head-tail temperature difference in rolling process of super-long plate |
| CN115532855A (en) * | 2022-10-10 | 2022-12-30 | 江苏东方成套设备制造集团有限公司 | Continuous through water cooling device |
| CN115532855B (en) * | 2022-10-10 | 2024-01-09 | 江苏东方成套设备制造集团有限公司 | Continuous water cooling device |
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|---|---|
| CN105268750B (en) | 2017-03-29 |
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