CN111922102A - Online quick cooling device after steel plate rolling - Google Patents
Online quick cooling device after steel plate rolling Download PDFInfo
- Publication number
- CN111922102A CN111922102A CN202010693261.1A CN202010693261A CN111922102A CN 111922102 A CN111922102 A CN 111922102A CN 202010693261 A CN202010693261 A CN 202010693261A CN 111922102 A CN111922102 A CN 111922102A
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- Prior art keywords
- cooling
- steel plate
- water
- water tank
- waterproof
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- 238000001816 cooling Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 238000005096 rolling process Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses an on-line quick cooling device for rolled steel plates, which belongs to the field of quick cooling and comprises a cooling water tank, side baffles arranged at two sides of the whole roller way of the cooling water tank and waterproof carrier rollers arranged between the two side baffles and sequentially arranged along the rolling running direction of the steel plates, wherein the arrangement of the waterproof carrier rollers entering the water tank is inverted trapezoid, water spraying carrier rollers and the waterproof carrier rollers are alternately laid at the bottom edge of the inverted trapezoid, side spray heads are arranged at two sides of the cooling water tank and connected with an external water supply device, a plurality of water outlets are formed in the surface of each water spraying carrier roller, and the water outlets are connected with the external water supply device through a pipeline arranged at the axis. The utility model provides an online quick cooling device after steel sheet rolls has improved the refrigerated inhomogeneity problem of steel sheet, and cooling and production efficiency are high, are applicable to the continuity of production to product quality is stable.
Description
Technical Field
The invention relates to an online cooling device for a hot-rolled steel plate, and belongs to the technical field of rapid cooling.
Background
With the increasing demand of the steel market in China on hot rolled plates, higher requirements are put forward on the specification, variety, mechanical property, dimensional precision and quality grade of the hot rolled plates, the mechanical property of finished products can be improved by fast cooling after rolling, but the cooling uniformity is difficult to control, and the cooling uniformity of the hot rolled plates is controlled, so that the cooling uniformity control not only is related to the grade of the surface quality of the steel plates, but also influences the type and the mechanical property of final steel products. In order to meet the performance of the rolled steel plate and the performance and quality requirements of the steel plate, the controlled rolling and controlled cooling technology is widely applied to the production process of the hot rolled steel plate. In order to realize the production of resource-saving high-performance steel, the cooling technology after rolling needs to be innovated, and the regulation and control of the steel structure and the performance are realized through the optimized control of a cooling path and a cooling speed, so that the steel material with simple components can have performance indexes meeting diversified requirements. Patent CN102228910A discloses a post-rolling ultra-fast cooling system for hot-rolled strip production line, the device arranges cooling devices of cooling headers with different structures in sequence along the rolling running direction of a steel plate on a rolling line, 2 groups are arranged, each group is provided with a row of paired cooling headers, it is characterized by that it adopts a flat jet flow header and a high-density jet flow header which are combined and arranged in rows, the high-density jet flow collecting pipes are in a forward tilting type, a vertical type, a reverse tilting type and a side part combined vertical tilting type, each type is independently used or combined to be arranged in a manner that each collecting pipe is perpendicular to the length direction of a rolling line and correspondingly arranged above and below a roller way, the upper cooling collecting pipe and the lower cooling collecting pipe are respectively and directly connected with a high-pressure water supply pipe through a control valve group and a pipeline, the control valve group can independently adjust and read the water flow of a water spraying port of each cooling collecting pipe, and the water spraying ports of the upper cooling collecting pipe and the lower cooling collecting pipe and a cooled strip steel form. However, one of the problems that rapid cooling by a water jet or the like has been completed is that cooling of a part of the steel sheet is inevitably uneven, which is one of the efforts in the rapid cooling field.
The present invention combines on-line cooling with conventional water bath cooling to achieve faster cooling rates and also to ensure uniformity of cooling.
Disclosure of Invention
The invention aims to provide an on-line rapid cooling device for rolled steel plates.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a steel sheet rolls online quick cooling device of back which characterized in that: including cooling trough, the side shield of setting in the whole roll table both sides of basin and set up between two side shields, along the waterproof bearing roller that the steel sheet rolling traffic direction was arranged in proper order, the range that waterproof bearing roller got into the basin is down trapezoidal, and water spray bearing roller and waterproof bearing roller are laid in turn on the base of falling trapezoidal, and cooling trough's both sides are provided with the side shower nozzle, and the side shower nozzle is connected with outside water supply installation, open on the surface of water spray bearing roller has a plurality of delivery ports, and the delivery port links to each other with outside water supply installation through the pipeline that sets up in the axle center.
The technical scheme of the invention is further improved as follows: the height of the side spray head is the height of a steel plate above the water spraying carrier roller when the device runs.
The technical scheme of the invention is further improved as follows: the ball head is arranged behind the side nozzle, and the spraying direction of the side nozzle can be adjusted by a certain angle.
The technical scheme of the invention is further improved as follows: and the descending angle between two adjacent waterproof carrier rollers of the waterproof carrier rollers entering the two inverted trapezoidal side edges of the cooling water tank is not more than 5 degrees.
The technical scheme of the invention is further improved as follows: when the cooling water tank runs, the distance between the height of the water surface in the cooling water tank and the upper surface of the steel plate above the water spraying carrier roller is within 50-100 mm.
Due to the adoption of the technical scheme, the invention has the technical progress that:
an online rapid cooling device for rolled steel plates is characterized in that the steel plates are continuously conveyed into a cooling water tank through the transportation of carrier rollers, so that the production efficiency is improved, cooling water in the water tank submerges the upper surfaces of the steel plates for a certain distance, and air films generated during the surface cooling of the steel plates are broken through the cooperation of side spray heads and water spray carrier rollers, so that the steel plates are cooled more uniformly; the arrangement of the side spray heads and the water spraying carrier roller has the advantages that the flowability of water in the cooling water tank is increased, so that the cooling water can better contact the surface of the steel plate, and the cooling efficiency is further improved; the ball head is arranged behind the side spray head, so that the angle of the side spray head can be conveniently adjusted to meet the actual production condition; the design of the smaller angle of the steel plate entering the cooling water tank enables the steel plate to smoothly enter the water tank for cooling on one hand, and enables the steel plate not to generate larger deformation after being cooled on the other hand, so that the product quality is not influenced; the water spraying carrier roller has a special structure, and the axis of the water spraying carrier roller is hollow so as to be filled with cooling water, so that the bearing capacity is reduced, and the water spraying carrier roller and the waterproof carrier roller are arranged at intervals so as to bear the weight of a steel plate and prevent the device from being damaged.
Drawings
FIG. 1 is a sectional view illustrating the operation of an on-line rapid cooling apparatus after rolling a steel plate according to the present invention;
FIG. 2 is a top view of an on-line rapid cooling device after rolling of a steel plate according to the present invention;
the water spray device comprises a side baffle 1, a side baffle 2, a steel plate 3, a side spray head 4, a water spray carrier roller 5, a waterproof carrier roller 6, a cooling water tank 7 and a water surface height.
Detailed Description
The technical solutions in the embodiments of the present invention are further clearly and completely described below by way of specific embodiments in conjunction with the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the steel plate post-rolling on-line rapid cooling device comprises a cooling water tank 6, side baffles 1 arranged on two sides of the whole roller way, and waterproof carrier rollers 5 which are sequentially arranged along the rolling running direction of the steel plate and are paved on the whole roller way, wherein the side baffles 1 are used for keeping the water level in the cooling water tank 6, so as to prevent cooling water from overflowing. The arrangement of the waterproof carrier rollers 5 is inverted trapezoid, the water spraying carrier rollers 4 and the waterproof carrier rollers 5 are alternately laid on the bottom edge of the inverted trapezoid, the two sides of the cooling water tank 6 are provided with side spray heads 3 parallel to the bottom edge of the inverted trapezoid, the side spray heads 3 are connected with an external water supply device, and the surface of the water spraying carrier roller 4 is provided with a plurality of water outlets which are connected with the external water supply device through a pipeline arranged on the axis. The height of the side spray heads 3 is the height of a steel plate above a water spraying carrier roller when the device runs, a ball head is arranged behind the side spray heads 3, and the spraying direction of the side spray heads 3 can be adjusted by a certain angle; the descending angle between two adjacent waterproof carrier rollers 5 of the waterproof carrier rollers 5 entering the two inverted trapezoidal side edges of the cooling water tank 6 is not more than 5 degrees.
When the device is operated, circulating water is introduced into the cooling water tank 6, the distance between the water surface height 7 and the upper surface of the steel plate above the water spray carrier roller 4 is within 50-100 mm, the steel plate 2 gradually enters the cooling water tank 6 for cooling through the transmission of the waterproof carrier roller 5 after coming out of a rolling mill, the side baffle 1 is used for ensuring the water surface height, cooling water is also introduced into the side spray heads 3 and the water spray carrier roller 4 to start working, cooling water is provided for the steel plate 2 through an external water supply device, the cooling water sprayed out of the side spray heads 3 is used for breaking an air film generated when the side surface of the steel plate 2 is cooled, particularly, the spraying direction of the side spray heads 3 can be adjusted by a certain angle, the cooling effect of the side surface of the steel plate 2 can be ensured, the cooling water sprayed out of the water spray carrier roller 4 is used for breaking the air film generated when the bottom of the steel, the problem of non-uniformity of steel plate cooling is solved, the cooling and production efficiency is high, the continuous production is suitable, and the product quality is stable.
According to the invention, the traditional water tank cooling is combined on the basis of a common roller way, the hot-rolled steel plate is conveyed into the cooling water tank through the transmission of the carrier roller, the side spray heads and the water spraying carrier roller are arranged in the water tank, the cooling efficiency is improved, the cooling is more uniform, the purpose of on-line rapid cooling is achieved, and the production efficiency and the product performance are further improved.
The principle and the implementation mode of the invention are explained by applying a specific example in the invention, and the description of the above embodiment is used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. The utility model provides a steel sheet rolls online quick cooling device of back which characterized in that: including cooling trough (6), set up side shield (1) in the whole roll table both sides of cooling trough (6) and set up between two side shield (1), along waterproof bearing roller (5) that the steel sheet rolling traffic direction was arranged in proper order, the range that waterproof bearing roller (5) got into the basin is down trapezoidal, water spray bearing roller (4) and waterproof bearing roller (5) are laid in turn on the base of falling trapezoidal, the both sides of cooling trough (6) are provided with side shower nozzle (3), side shower nozzle (3) and outside water supply installation are connected, open on the surface of water spray bearing roller (4) has a plurality of delivery ports, and the delivery port links to each other with outside water supply installation through the pipeline that sets up in the axle center.
2. The on-line rapid cooling device for the rolled steel plate according to claim 1, characterized in that: the side spray heads (3) are arranged at the height of a steel plate above the water spraying carrier roller (4) when the device runs.
3. The on-line rapid cooling device for the rolled steel plate according to claim 1, characterized in that: a ball head is arranged behind the side nozzle (3), and the spraying direction of the side nozzle (3) can be adjusted by a certain angle.
4. The on-line rapid cooling device for the rolled steel plate according to claim 1, characterized in that: the falling angle between two adjacent waterproof carrier rollers (5) of the waterproof carrier rollers (5) entering the two inverted trapezoidal side edges of the cooling water tank (6) is not more than 5 degrees.
5. The on-line rapid cooling device for the rolled steel plate according to claim 4, characterized in that: when the device is operated, the distance between the height (7) of the water surface in the cooling water tank (6) and the upper surface of the steel plate above the water spraying carrier roller (4) is within 50-100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693261.1A CN111922102B (en) | 2020-07-17 | 2020-07-17 | Online quick cooling device after steel plate rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693261.1A CN111922102B (en) | 2020-07-17 | 2020-07-17 | Online quick cooling device after steel plate rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111922102A true CN111922102A (en) | 2020-11-13 |
| CN111922102B CN111922102B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693261.1A Active CN111922102B (en) | 2020-07-17 | 2020-07-17 | Online quick cooling device after steel plate rolling |
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| Country | Link |
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| CN (1) | CN111922102B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10166023A (en) * | 1996-12-10 | 1998-06-23 | Nkk Corp | Device for cooling high-temperature steel sheet |
| CN1237493A (en) * | 1998-05-28 | 1999-12-08 | 川崎制铁株式会社 | Billet-watter-cooling method and water cooling trough |
| CN202278020U (en) * | 2011-11-03 | 2012-06-20 | 攀钢集团攀枝花钢钒有限公司 | Ultra-fast cooling system used for hot rolling production line |
| CN102873115A (en) * | 2012-09-27 | 2013-01-16 | 鞍钢股份有限公司 | On-line hot bath cooling device for high-speed wires and control system of on-line hot bath cooling device |
| CN204685673U (en) * | 2015-04-21 | 2015-10-07 | 江西金品铜业科技有限公司 | A kind of Improvement For Production Equipment of Copper Strip uses bosh structure |
| CN207929779U (en) * | 2018-02-28 | 2018-10-02 | 铜陵市大明玛钢有限责任公司 | A kind of cooling device of hot rolled steel plate |
-
2020
- 2020-07-17 CN CN202010693261.1A patent/CN111922102B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10166023A (en) * | 1996-12-10 | 1998-06-23 | Nkk Corp | Device for cooling high-temperature steel sheet |
| CN1237493A (en) * | 1998-05-28 | 1999-12-08 | 川崎制铁株式会社 | Billet-watter-cooling method and water cooling trough |
| CN202278020U (en) * | 2011-11-03 | 2012-06-20 | 攀钢集团攀枝花钢钒有限公司 | Ultra-fast cooling system used for hot rolling production line |
| CN102873115A (en) * | 2012-09-27 | 2013-01-16 | 鞍钢股份有限公司 | On-line hot bath cooling device for high-speed wires and control system of on-line hot bath cooling device |
| CN204685673U (en) * | 2015-04-21 | 2015-10-07 | 江西金品铜业科技有限公司 | A kind of Improvement For Production Equipment of Copper Strip uses bosh structure |
| CN207929779U (en) * | 2018-02-28 | 2018-10-02 | 铜陵市大明玛钢有限责任公司 | A kind of cooling device of hot rolled steel plate |
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| Publication number | Publication date |
|---|---|
| CN111922102B (en) | 2021-10-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 064499 north steel logistics industry cluster area, Qian'an City, Tangshan City, Hebei Province (qianshawopu village, shaheyi town) Patentee after: Tangshan Legang metal products Co.,Ltd. Address before: 066004 No. 438, Hebei Avenue, seaport District, Hebei, Qinhuangdao Patentee before: Yanshan University |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An online rapid cooling device for steel plate rolling Granted publication date: 20211029 Pledgee: Agricultural Bank of China Luanzhou Branch Pledgor: Tangshan Legang metal products Co.,Ltd. Registration number: Y2024110000023 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |