CN211839580U - Rapid cooling system for wide and thick plate temperature control rolled plate blank - Google Patents
Rapid cooling system for wide and thick plate temperature control rolled plate blank Download PDFInfo
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- CN211839580U CN211839580U CN201921957387.4U CN201921957387U CN211839580U CN 211839580 U CN211839580 U CN 211839580U CN 201921957387 U CN201921957387 U CN 201921957387U CN 211839580 U CN211839580 U CN 211839580U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a quick cooling system of wide and thick board accuse temperature rolling slab belongs to the rolling technical field of the wide and thick board of metallurgical industry. The technical scheme is as follows: the device is characterized in that a plurality of groups of water spray cooling devices are respectively arranged above and below the roller way to be heated, an upper cooling water collecting pipe (3) and a lower cooling water collecting pipe (10) are respectively positioned above and below the roller way to be heated, the upper cooling water collecting pipe (3) is fixed on an upper collecting pipe fixing frame (1), the upper collecting pipe fixing frame (1) is fixed on a roller way motor base (2), the lower cooling water collecting pipe (10) is fixed on a roller way bearing base mounting base, the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10) are respectively connected to a water inlet main pipeline (8), and a plurality of nozzles are respectively arranged on the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10). The utility model has the advantages that: the upper surface and the lower surface of the plate blank to be heated on the opposite side roller way to be heated are sprayed with water to cool by utilizing a plurality of groups of nozzles, so that the plate blank is uniformly and rapidly cooled, and the rolling rhythm is improved.
Description
Technical Field
The utility model relates to a quick cooling system of wide and thick board accuse temperature rolling slab belongs to the rolling technical field of the wide and thick board of metallurgical industry.
Background
In the rolling production of the wide and thick plate, in order to improve the mechanical property of the steel plate, the wide and thick plate mostly adopts a temperature control rolling technology, namely, the rolling of one plate blank is divided into two rolling processes, the first rolling process plate blank is rolled in an austenite recrystallization region, and the austenite recrystallization region is avoided through the temperature waiting of an intermediate blank; the slab in the second rolling process is rolled in an austenite non-recrystallization region, so that austenite grains are refined, a foundation is laid for refining structure grains after phase transformation, and the mechanical property of the steel plate is improved. The slab temperature control rolling technology has the advantages that the slab temperature waiting time is long, and the normal production rhythm is directly influenced.
Chinese patent publication No. CN 104942026B discloses a medium plate temperature-controlled rolling process using a side temperature-waiting roller way, which can realize a temperature-controlled rolling mode of two plate blanks in one group, that is, one plate blank is rolled on line, and one plate blank is subjected to temperature waiting on the side temperature-waiting roller way, and the rolling process is performed cyclically, so as to improve the rolling efficiency. The side temperature-waiting roller way is positioned at one side of the slab rolling roller way, and the slab adopts natural cooling on the temperature-waiting roller way. With the development of new varieties and the acceleration of rolling rhythm, the slab is naturally cooled by the temperature-waiting roller way, the speed is low, the temperature-waiting time is long, and the requirement of rapid rolling of the slab produced by modern wide and thick plates cannot be met, so a new technical scheme is needed to solve the technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wide thick plate accuse temperature rolling slab quick cooling system utilizes the multiunit nozzle to treat on the warm roll table treat the warm slab about the surface water spray cooling, makes the slab even, cool off fast, improves rolling rhythm, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
a rapid cooling system for a wide and thick plate temperature control rolled plate blank comprises a temperature waiting roller way, a temperature waiting roller way driving motor, a roller way motor base and a roller way bearing seat mounting base, wherein a plurality of groups of water spray cooling devices are respectively arranged above and below the temperature waiting roller way, the water spray cooling device above the temperature waiting roller way comprises an upper collecting pipe fixing frame, an upper cooling water collecting pipe, a water inlet connecting pipe and a water inlet main pipeline, the water spray cooling device below the temperature waiting roller way comprises a lower cooling water collecting pipe, the upper cooling water collecting pipe and the lower cooling water collecting pipe are respectively positioned above and below the temperature waiting roller way, the upper cooling water collecting pipe 3 and the lower cooling water collecting pipe 10 are parallel to the central axis of the temperature waiting roller way, the upper cooling water collecting pipe fixing frame is fixed on the upper collecting pipe fixing frame, the lower cooling water collecting pipe is fixed on the roller way motor base, the upper cooling water collecting pipe and the lower cooling water collecting pipe are respectively connected on the water, the upper cooling water collecting pipe and the lower cooling water collecting pipe are respectively provided with a plurality of nozzles, the water spraying direction of the nozzles on the upper cooling water collecting pipe faces the upper surface of the slab, and the water spraying direction of the nozzles on the lower cooling water collecting pipe faces the lower surface of the slab.
And the nozzles on the upper cooling water header and the lower cooling water header are respectively connected on the upper cooling water header and the lower cooling water header through nuts in a threaded mode.
And the water inlet main pipeline is provided with a manual regulating valve and an electromagnetic valve.
The upper collecting pipe fixing frame is L-shaped, the upper cooling water collecting pipe is fixed on one edge of the L-shaped upper collecting pipe fixing frame, and the other edge of the L-shaped upper collecting pipe fixing frame is fixed on the roller way motor base.
And dredging ball valves are arranged on the upper cooling water collecting pipe and the lower cooling water collecting pipe.
The utility model has the advantages that: the upper surface and the lower surface of the plate blank to be heated on the roller bed to be heated are sprayed with water for cooling by utilizing the plurality of nozzles on the upper cooling water collecting pipe and the lower cooling water collecting pipe, so that the plate blank is uniformly and quickly cooled, the temperature required by the second rolling process of the plate blank is reached, the rolling efficiency is improved, and the product quality and the performance are ensured. The structure is simple, the operation is convenient, the installation and maintenance time is short, the cost is low, and the occupied space is small.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the fixing frame of the upper header of the present invention;
FIG. 3 is a schematic view of an upper cooling water header of the present invention;
FIG. 4 is a schematic view of a lower cooling water header of the present invention;
FIG. 5 is a schematic view of the nozzle assembly of the present invention;
FIG. 6 is a schematic view of the installation of the present invention on a roller bed to be warmed;
FIG. 7 is an application example I of the present invention in the rolling of wide and thick plates;
FIG. 8 shows an example II of the present invention applied to rolling a wide and thick plate;
FIG. 9 shows an example III of the present invention applied to rolling of a wide and thick plate;
in the figure: 1. go up the header mount, 2, roller way motor base, 3, go up the cooling water header, 4, the nozzle, 5, the nut, 6, the connecting pipe of intaking, 7, the mediation ball valve, 8, the main pipeline of intaking, 9, the pipe clamp, 10, lower cooling water header, 11, manual control valve, 12, the solenoid valve, 13, first slab, 14, the rolling mill, 15, the quick cooling system of rolling slab of machine back roll table, 16 warm roll table is treated to first group side, 17, second slab, 18, the warm roll table is treated to second group side, 19, wide and thick plate accuse temperature.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-9, a rapid cooling system for wide and thick plate temperature control rolled slabs comprises a temperature waiting roller way, a temperature waiting roller way driving motor, a roller way motor base 2 and a roller way bearing block mounting base, wherein a plurality of groups of water spray cooling devices are respectively arranged above and below the temperature waiting roller way, the water spray cooling device above the temperature waiting roller way comprises an upper collecting pipe fixing frame 1, an upper cooling water collecting pipe 3, a water inlet connecting pipe 6 and a water inlet main pipeline 8, the water spray cooling device below the temperature waiting roller way comprises a lower cooling water collecting pipe 10, the upper cooling water collecting pipe 3 and the lower cooling water collecting pipe 10 are respectively positioned above and below the temperature waiting roller way, the upper cooling water collecting pipe 3 and the lower cooling water collecting pipe 10 are parallel to the central axis of the temperature waiting roller way, the upper cooling water collecting pipe 3 is fixed on the upper collecting pipe fixing frame 1, the upper collecting pipe fixing frame 1 is fixed on the roller way motor base 2, the lower cooling water, the upper cooling water header 3 and the lower cooling water header 10 are respectively connected to a water inlet main pipeline 8, a plurality of nozzles are respectively arranged on the upper cooling water header 3 and the lower cooling water header 10, the water spraying direction of the nozzles on the upper cooling water header 3 faces the upper surface of the slab, and the water spraying direction of the nozzles on the lower cooling water header 10 faces the lower surface of the slab.
In this embodiment, referring to fig. 1-6, the upper header fixing frame 1 is integrally formed in an "L" shape and provided with a rectangular base, the rectangular base and the roller bed motor base 2 are both provided with bolt through holes, the two are fixedly connected through bolts, and meanwhile, the rectangular base of the upper header fixing frame 1 can also be fixed above the motor base in a welding manner. The upper header fixing frame 1 is arranged along the axial direction of the roller way to be heated and is used for fixing the upper cooling water header 3.
Go up to be equipped with a plurality of branch road pipes on the cooling water collector 3, branch road pipe outer end is equipped with the external screw thread, and the inboard is equipped with positioning groove, and the 4 outsides of nozzle are equipped with the location incision, and nozzle 4 installs in branch road pipe inboard, utilizes positioning groove location to through fixation nut 5 and branch road pipe outer end threaded connection fixed nozzle, prevent nozzle axial displacement and rotation in a circumferential direction, make the fixed of nozzle unanimous with installation angle, thereby guarantee that the nozzle goes out the water direction unanimously.
One end of the upper cooling water collecting pipe 3 is provided with a flange plate, and the other end is provided with an external thread joint; one end of the water inlet connecting pipe 6 is provided with a flange, the other end of the water inlet connecting pipe is provided with an external thread joint, and the flange of the upper cooling water collecting pipe 3 is fixedly connected with the flange of the water inlet connecting pipe 6 through bolts and nuts; the dredging ball valve 7 is provided with internal threads, and is in threaded connection and fixed with the external thread joint of the upper cooling water collecting pipe 3.
The main water inlet pipeline 8 is provided with a plurality of groups of branches, and the branches are provided with female screw joints which are fixedly connected with the water inlet connecting pipe 6 in a threaded manner.
The internal diameter of the dredging ball valve 7 is consistent with the internal diameter of the collecting pipe pipeline, so that sundries such as large-particle iron slag in the upper cooling water collecting pipe 3 are dredged and removed regularly, accumulated blockage of the sundries in the collecting pipe is avoided, the nozzle is blocked, and the cooling effect of the plate blank is influenced.
The upper cooling water manifold 3 is fixed on the side surface of the upper manifold fixing frame 1 through a pipe clamp 9 and is connected with a water inlet main pipeline 8 through a water inlet connecting pipe 6.
The lower cooling water collecting pipe 10 is fixed above the roller way bearing seat mounting base through a pipe clamp 9, two ends of the lower cooling water collecting pipe are blocked, two external thread joints are arranged below the lower cooling water collecting pipe, one side of the lower cooling water collecting pipe is in threaded connection with the dredging ball valve 7 and is used for periodically dredging pipeline impurities; the other side is in threaded connection with a main water inlet pipeline 8. The lower cooling water headers 10 are provided with a plurality of sets of branches on which nozzles are mounted in the same manner as the upper cooling water headers 3.
The water inlet main pipeline 8 is provided with a manual regulating valve 11 and an electromagnetic valve 12, and the flow and the switch of the pipeline can be regulated through the manual regulating valve 11.
On accuse temperature rolling technical scheme basis, will the utility model discloses be applied to first group side and treat warm roll table top, treat warm slab cooling to rolling, make it reach the second fast and roll the required temperature of journey, improve rolling rhythm, guarantee to produce property ability. The rapid cooling of the rolled slab is achieved according to the following steps, see fig. 7-6:
according to the cooling requirements of the plate blanks with different specifications, the flow of the nozzle can be accurately adjusted and set through the manual adjusting valve 11.
Referring to fig. 7, after the first slab 13 is rolled to complete the first rolling process, the first slab enters a first group of side temperature-waiting roller ways 16 from a rear roller way 15 of a rolling mill 14 to swing for temperature waiting, a valve of a rapid slab cooling system is opened under the control of an electromagnetic valve 12, and the slab to be heated is uniformly cooled by spraying water through upper and lower cooling water header nozzles, so that the slab is rapidly cooled to reach the temperature required by the second rolling process.
Referring to fig. 8, after the second slab 17 is rolled in the first rolling pass, the second slab enters the second group of side temperature-waiting roller ways 18 from the rear roller way of the rolling mill to be heated, and simultaneously the first slab returns to the rear roller way 15 of the rolling mill 14 from the first group of side temperature-waiting roller ways 16 to be heated to be rolled in the second rolling pass.
And fourthly, the second plate blank is moved from the second group of side roller ways to be warmed 18 to the first group of side roller ways to be warmed 15 and is cooled by cooling water.
Fifthly, referring to fig. 9, the first slab is released from the rear roller way 15 of the rolling mill after the second rolling process is completed, and meanwhile, the second slab is returned to the rear roller way 15 of the rolling mill from the side temperature waiting roller way after the second slab is cooled, and the second slab is rolled in the second rolling process and released after the second slab is completed.
The above embodiment only takes the two-block one-group rolling mode as an example for illustration, and when a plurality of blocks are rolled in one group, the second rolling process is performed after the temperature of the slab is reduced by the rapid cooling system of the slab in sequence, so that the time for the slab to be heated is shortened.
The utility model discloses a multiunit cooling water collector parallel mode is installed in treating warm roll table below from top to bottom to adjust the collector flow size through manual regulating valve, rely on solenoid valve to realize switch remote operation control, simple structure, convenient operation. The cooling device is used for cooling the upper surface and the lower surface of the plate blank on the roller bed to be heated so as to reach the temperature required by the second rolling process of the plate blank, improve the rolling efficiency and ensure the product quality and performance.
Claims (5)
1. The utility model provides a wide thick plate accuse temperature rolling slab quick cooling system, contains treats warm roll table, treats warm roll table driving motor, roll table motor base (2) and roll table bearing frame installation base, its characterized in that: a plurality of groups of water spray cooling devices are respectively arranged above and below the roller way to be warmed, the water spray cooling device above the roller way to be warmed comprises an upper collecting pipe fixing frame (1), an upper cooling water collecting pipe (3), a water inlet connecting pipe (6) and a water inlet main pipeline (8), the water spray cooling device below the roller way to be warmed comprises a lower cooling water collecting pipe (10), the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10) are respectively positioned above and below the roller way to be warmed, the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10) are parallel to the central axis of the roller way to be warmed, the upper cooling water collecting pipe (3) is fixed on the upper collecting pipe fixing frame (1), the upper collecting pipe fixing frame (1) is fixed on a roller way motor base (2), the lower cooling water collecting pipe (10) is fixed on a roller way bearing base mounting base, the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10) are respectively connected on the, the upper cooling water header (3) and the lower cooling water header (10) are respectively provided with a plurality of nozzles, the water spraying direction of the nozzles on the upper cooling water header (3) faces the upper surface of the slab, and the water spraying direction of the nozzles on the lower cooling water header (10) faces the lower surface of the slab.
2. The system for rapidly cooling wide and thick plate temperature-controlled rolling slabs according to claim 1, characterized in that: and the nozzles on the upper cooling water header (3) and the lower cooling water header (10) are respectively connected to the upper cooling water header (3) and the lower cooling water header (10) through nuts and threads.
3. The system for rapidly cooling wide and thick plate temperature-controlled rolling slabs according to claim 1, characterized in that: and a manual regulating valve (11) and an electromagnetic valve (12) are arranged on the water inlet main pipeline (8).
4. The system for rapidly cooling wide and thick plate temperature-controlled rolling slabs according to claim 1, characterized in that: the upper collecting pipe fixing frame (1) is L-shaped, the upper cooling water collecting pipe (3) is fixed on one edge of the L-shaped upper collecting pipe fixing frame (1), and the other edge of the L-shaped upper collecting pipe fixing frame (1) is fixed on the roller way motor base (2).
5. The system for rapidly cooling wide and thick plate temperature-controlled rolling slabs according to claim 1, characterized in that: and dredging ball valves (7) are arranged on the upper cooling water collecting pipe (3) and the lower cooling water collecting pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957387.4U CN211839580U (en) | 2019-11-13 | 2019-11-13 | Rapid cooling system for wide and thick plate temperature control rolled plate blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957387.4U CN211839580U (en) | 2019-11-13 | 2019-11-13 | Rapid cooling system for wide and thick plate temperature control rolled plate blank |
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| Publication Number | Publication Date |
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| CN211839580U true CN211839580U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921957387.4U Active CN211839580U (en) | 2019-11-13 | 2019-11-13 | Rapid cooling system for wide and thick plate temperature control rolled plate blank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351659A (en) * | 2021-06-09 | 2021-09-07 | 建龙阿城钢铁有限公司 | Impurity cleaning device for hot rolled strip steel three-forked area cooling tank |
-
2019
- 2019-11-13 CN CN201921957387.4U patent/CN211839580U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351659A (en) * | 2021-06-09 | 2021-09-07 | 建龙阿城钢铁有限公司 | Impurity cleaning device for hot rolled strip steel three-forked area cooling tank |
| CN113351659B (en) * | 2021-06-09 | 2023-03-10 | 建龙阿城钢铁有限公司 | Impurity cleaning device for hot rolled strip steel three-forked area cooling tank |
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