CN114589209A - Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel - Google Patents
Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel Download PDFInfo
- Publication number
- CN114589209A CN114589209A CN202210333534.0A CN202210333534A CN114589209A CN 114589209 A CN114589209 A CN 114589209A CN 202210333534 A CN202210333534 A CN 202210333534A CN 114589209 A CN114589209 A CN 114589209A
- Authority
- CN
- China
- Prior art keywords
- water
- strip steel
- hot
- pipe
- cooling structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Nozzles (AREA)
Abstract
Be applicable to the water cooling structure that restraines hot rolling narrow strip steel surface scale formation, arrange between five roller tight devices that rise in hot rolling strip steel production line finishing district and vertical coiling machine, including two parts that are located belted steel left side and right side, all set up the collector pipe parallel with belted steel direction of feed in its each part, collector pipe one end and the supply channel intercommunication of high-pressure cooling water, the other end is block structure, sets up one row of distributive pipe with the collector pipe inner chamber intercommunication on the lateral wall of collector pipe, the end of distributive pipe is equipped with the shower nozzle, and the contained angle alpha =70 ~ 80 o of distributive pipe and collector pipe the central axis. According to the invention, the spray type water cooling device is arranged between the five-roller tensioning device and the vertical coiling machine in the finishing area of the hot-rolled strip steel production line, so that the surface of the hot-rolled strip steel is rapidly cooled, the generation of iron scales on the surface of the strip steel is inhibited, and the purposes of improving the product quality and reducing the cold rolling and pickling cost of downstream customers are achieved.
Description
Technical Field
The invention relates to a water cooling structure suitable for inhibiting the formation of oxide skin on the surface of hot-rolled narrow strip steel, and belongs to the technical field of steel rolling equipment.
Background
For a hot rolling strip steel production line, when the whole span is short, because the strip steel in a finishing area has insufficient cooling distance, the temperature of the strip steel before coiling is too high, thicker iron scales are generated on the surface of the strip steel after the strip steel is contacted with air, and under the same condition, the acid washing dosage must be increased to wash the thicker iron scales on the surface of the strip steel, so that the difficulty of cold rolling and acid washing of downstream customers is increased, and the production cost of the downstream customers is increased. Particularly, with the development of the steel industry in China in recent years, the steel industry integrally enters a micro-profit era, and in order to improve the product competitiveness and economic benefit, a hot-rolled narrow strip steel surface water cooling device for a finishing operation area needs to be innovatively designed so as to reduce the surface temperature of strip steel and inhibit the generation of iron scale on the surface of the strip steel.
Disclosure of Invention
The invention provides a water cooling structure suitable for inhibiting the formation of oxide skin on the surface of hot-rolled narrow strip steel, and aims to realize the rapid cooling and cooling of the surface of the hot-rolled strip steel by arranging a spray type water cooling device between a five-roller tensioning device and a vertical coiling machine in a finishing area of a hot-rolled strip steel production line so as to inhibit the formation of oxide scales on the surface of the strip steel and achieve the purposes of improving the product quality and reducing the cold-rolling and pickling cost of downstream customers.
In order to realize the purpose, the invention adopts the following technical scheme:
be applicable to and restrain the water cooling structure that hot rolling ribbon steel surface scale formed, arrange between five roller tight devices that rise in hot rolling strip steel production line finishing district and vertical coiling machine, including two parts that are located belted steel left side and right side, all set up the collector pipe parallel with belted steel direction of feed in its each part, collector pipe one end and the supply channel intercommunication of high-pressure cooling water, the other end is block structure, sets up one row of distributive pipe that communicates with the collector pipe inner chamber on the lateral wall of collector pipe, the end of distributive pipe is equipped with the shower nozzle, and the contained angle alpha =70 ~ 80 o of distributive pipe and collector pipe the central axis.
The water cooling structure suitable for inhibiting the formation of the oxide skin on the surface of the hot-rolled narrow strip steel is characterized in that the spray head is assembled with the water distribution pipe through a threaded connection structure, and the spray head is provided with the linear nozzle.
The water cooling structure suitable for inhibiting the formation of the oxide skin on the surface of the hot-rolled narrow strip steel is characterized in that the straight-line-shaped nozzle is of a V-shaped cross section structure, and cooling water is sprayed out of the nozzle and then forms a fan-shaped water curtain.
In the above water cooling structure for suppressing the formation of scale on the surface of hot-rolled narrow strip steel, the number of the water distribution pipes provided on the water collection pipe is preferably five, and the water distribution pipes are uniformly arranged at the same distance.
The invention provides a water cooling structure suitable for inhibiting the formation of surface oxide skin of a hot-rolled narrow strip steel, which rapidly cools the surface of the strip steel through a spray type water cooling device arranged between a five-roller tensioning device and a vertical coiling machine in a finishing area of a hot-rolled strip steel production line so as to rapidly reduce the temperature of the finished strip steel and inhibit the formation of the surface oxide skin of the strip steel, thereby reducing the thickness of the surface oxide skin of the strip steel and the cold-rolling and pickling cost of downstream customers, and improving the quality and market competitiveness of strip steel products.
Drawings
FIG. 1 is a layout of a water-cooling structure for suppressing scale formation on the surface of a hot-rolled narrow strip according to the present invention on a production line;
FIG. 2 is a schematic illustration of a water-cooled configuration of the present invention suitable for inhibiting scale formation on the surface of hot rolled narrow strip steel;
FIG. 3 is a top view (rotated horizontally) of FIG. 2;
FIG. 4 is an enlarged view of the structure of FIG. 3 at I;
FIG. 5 is a schematic view of an assembled structure of a water knockout pipe and a spray head;
FIG. 6 is a schematic view showing the operation of the water-cooled structure according to the present invention, which is suitable for suppressing the formation of scale on the surface of a hot-rolled narrow strip.
The list of labels in the figure is:
1, a water collecting pipe; 2, a water distribution pipe, 2-1 spray head and 2-2 straight-line-shaped spray nozzle; 3, strip steel; 4, a five-roller tensioning device; 5 vertical coiling machine.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Referring to fig. 1, 2, 3 and 4, the water cooling structure suitable for inhibiting the formation of the oxide skin on the surface of the hot-rolled narrow strip steel is arranged between a five-roll tensioning device 4 and a vertical coiler 5 in a finishing area of a hot-rolled strip steel production line, and comprises two parts positioned on the left side and the right side of a strip steel 3, a water collecting pipe 1 parallel to the feeding direction of the strip steel 3 is arranged in each part, one end of the water collecting pipe 1 is communicated with a water supply pipeline of high-pressure cooling water, the other end of the water collecting pipe is of a plugging structure, five groups of water distributing pipes 2 communicated with inner cavities of the water collecting pipes are arranged on the side wall of the water collecting pipe 1, a spray head 2-1 is arranged at the tail end of each group of water distributing pipes 2, the five groups of water distributing pipes 2 are arranged in parallel and have the same interval distance, and the included angle α =75 degrees with the central axis of the water collecting pipes 1.
Referring to fig. 2, 3, 5 and 6, the water cooling structure for inhibiting the formation of scale on the surface of hot-rolled narrow strip steel according to the present invention has a spray head 2-1 assembled with a water distribution pipe 2 through a threaded connection structure, and a nozzle 2-2 shaped like a Chinese character 'yi' is disposed on the spray head 2-1; the straight-line-shaped nozzle 2-2 is of a V-shaped cross section structure, and cooling water is sprayed out of the nozzle 2-2 to be in a fan-shaped water curtain shape.
Referring to fig. 1 to 6, the present invention provides a water cooling structure for suppressing the formation of scale on the surface of a hot-rolled narrow strip, when a strip 3 in a finishing section of a hot-rolled strip production line runs between a five-roll tensioning device 4 and a vertical coiler 5, high-pressure cooling water is sprayed out from nozzles 2-2 of a spray type water cooling device to form a fan-shaped water curtain opposite to the running direction of the strip 3, and the fan-shaped water curtain is sprayed to the surfaces on both sides of the strip 3, and the surfaces on both sides of the strip 3 are rapidly cooled by the cooling water to reduce the surface temperature of the strip 3, thereby effectively suppressing the formation of scale on the surface of the strip 3.
Claims (4)
1. Be applicable to and restrain water cooling structure that hot rolling ribbon steel surface scale generated, its characterized in that: the device is arranged between a five-roller tensioning device (4) and a vertical coiling machine (5) in a finishing area of a hot-rolled strip steel production line, and comprises two parts located on the left side and the right side of a strip steel (3), wherein a water collecting pipe (1) parallel to the feeding direction of the strip steel (3) is arranged in each part of the device, one end of the water collecting pipe (1) is communicated with a water supply pipeline of high-pressure cooling water, the other end of the water collecting pipe is of a plugging structure, a row of water distribution pipes (2) communicated with an inner cavity of the water collecting pipe are arranged on the side wall of the water collecting pipe (1), a spray head (2-1) is arranged at the tail end of each water distribution pipe (2), and the included angle alpha = 70-80 degrees between each water distribution pipe (2) and the central axis of the water collecting pipe (1).
2. The water-cooling structure for suppressing the formation of scale on the surface of hot-rolled narrow strip steel according to claim 1, wherein: the spray head (2-1) is assembled with the water distribution pipe (2) through a threaded connection structure, and the spray head (2-1) is provided with a linear nozzle (2-2).
3. The water-cooling structure for suppressing the formation of scale on the surface of hot-rolled narrow strip steel according to claim 2, wherein: the straight-line-shaped nozzle (2-2) is of a V-shaped cross section structure, and cooling water is sprayed out of the nozzle (2-2) and then is in a fan-shaped water curtain shape.
4. The water-cooling structure for suppressing the formation of scale on the surface of hot-rolled narrow strip steel according to claim 3, wherein: the number of the water distribution pipes (2) arranged on the water collection pipe (1) is five, and the water distribution pipes are uniformly arranged at the same interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210333534.0A CN114589209A (en) | 2022-03-30 | 2022-03-30 | Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210333534.0A CN114589209A (en) | 2022-03-30 | 2022-03-30 | Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114589209A true CN114589209A (en) | 2022-06-07 |
Family
ID=81812966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210333534.0A Pending CN114589209A (en) | 2022-03-30 | 2022-03-30 | Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114589209A (en) |
-
2022
- 2022-03-30 CN CN202210333534.0A patent/CN114589209A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202224453U (en) | Complete device of after-rolling ultrafast cooling system for hot-rolled strip steel production line | |
| CN101618406B (en) | Method for controlling surface chromatic aberration of hot rolling acid-cleaning plate | |
| CN205519548U (en) | Modified conticaster secondary cooling shower device | |
| CN114589209A (en) | Water cooling structure suitable for inhibiting surface oxide skin generation of hot-rolled narrow strip steel | |
| CN213729241U (en) | Continuous casting secondary cooling system | |
| CN217044021U (en) | Water cooling device for inhibiting formation of oxide skin on surface of hot-rolled narrow strip steel | |
| CN103286147B (en) | Hot-rolled board strip production line laminar cooling method | |
| CN108144967A (en) | A kind of emulsion spray device for being used to cooling down and lubricating copper wires roll for hot-rolling | |
| CN201186289Y (en) | Apparatus for cooling roller ring | |
| CN102586565A (en) | Rapid cooling method and device after medium and thick plate heat treatment furnace | |
| CN201192701Y (en) | Fourth pass cooling device for cold-rolled silicon steel sheet | |
| CN111910060B (en) | Free-restraint quenching machine and free-restraint quenching process for thin and wide plates | |
| CN103658204A (en) | Arrangement method of jet flow washing nozzles | |
| CN212238624U (en) | Cooling system for hot-rolled sheet working roll | |
| CN216027126U (en) | Steckel mill cinder restraines spray set | |
| CN211137836U (en) | Be applied to cooling body of sticky tape | |
| CN202638906U (en) | Surface blowing and sweeping device for hot rolling product | |
| CN216540240U (en) | Cooling water spraying device for adjusting strip steel coiling temperature | |
| CN215143417U (en) | Cooling device for finished hot-rolled narrow strip steel product | |
| CN114672628B (en) | Slab surface quenching system and process based on continuous casting machine tail end | |
| CN217043995U (en) | Upper roller cooling system of flat rolling mill | |
| KR101376573B1 (en) | Double cold rolling method and nozzle apparatus of double cold rolling | |
| WO2014114091A1 (en) | Cooling and bending preventing device for specially-shaped steel and process method | |
| CN213915504U (en) | Novel worker 30 shaped steel water spray rapid cooling device | |
| CN221312427U (en) | Secondary cooling zone cooling extension device of billet continuous casting machine |
Legal Events
| 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 |