CN201735609U - Universal descaling device for rectangular-section billets to be rolled - Google Patents
Universal descaling device for rectangular-section billets to be rolled Download PDFInfo
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- CN201735609U CN201735609U CN2010201247085U CN201020124708U CN201735609U CN 201735609 U CN201735609 U CN 201735609U CN 2010201247085 U CN2010201247085 U CN 2010201247085U CN 201020124708 U CN201020124708 U CN 201020124708U CN 201735609 U CN201735609 U CN 201735609U
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Abstract
The utility model provides a universal descaling device used for rectangular-section billets to be rolled. The descaling device comprises a high-pressure water pump, a water supply pipeline and nozzles, wherein t he high-pressure water pump is connected with a closed-ring high-pressure water collecting pipe framework through the water supply pipeline; a circle of spiral nozzle collectors are inwardly mounted on the inner side of the high-pressure water collecting pipe framework at intervals; 4 to 12 nozzles are uniformly assembled on each spiral nozzle collector in a circle to form a water spraying round plate; each spiral nozzle collector comprises a main pipe connected with the high-pressure water collecting pipe framework and 4 to 12 branch pipes communicated with the main pipe; the branch pipes surrounds the main pipe and are in cone-shaped uniform distribution; a small included angle Q1 between the outlet axis of each branch pipe and the axis of the main pipe which are on the same plane is 5 to 25 degrees; a nozzle is mounted at the port of each branch pipe; the outlets of the nozzles are on the same circle to form the water spraying round plate; the included angle between the direction of the outlet axis O of each nozzle and the bus M of the cone is 5 to 45 degrees; 1 to 6 high-pressure water collecting pipe framework adopting plunger high-pressure water pumps is (are) arranged in tandem, and each high-pressure water collecting pipe framework is controlled by an individual inlet valve.
Description
Technical field
The utility model relates to the universal descaling device before a kind of rectangular cross section billet rolling.Particularly the technique of scale removal of slab after casting process belongs to the preceding removing surface de-scaling equipment of billet rolling.
Background technology
Slab surface in heating process can produce the very thick iron scale of one deck, and promptly stove is given birth to iron scale, and is clean as not removing, and will badly influence the surface quality of sheet material.For effectively removing iron scale, many now employing water under high pressures hit the de-scaling method.
The working mechanism of high-pressure water descaling is: when the water under high pressure of certain pressure forms the current of concentration of energy by the tiny mouth hole of nozzle, when being ejected into the red heat steel slab surface, on the one hand iron scale by moment sharply cooling embrittlement, contraction take place; On the other hand, current enter between iron scale and the slab along the iron scale rent, extend expansion rapidly, form high-temperature steam and expand, and produce the gas explosion phenomenon, smash thereby reach, and peel off the purpose of iron scale.The angle of water flow jet slab has a significant impact scale removal effect.High-pressure water descaling is a part important on the Medium and Heavy Plate Rolling line, and its effect quality is to guarantee the precondition of plate surface quality.
For big substance extra wide super-thick steel plate, extra wide refers generally to the finished product steel plate width and reaches more than the 4500mm, the wideest 5350mm that reaches, the special thick finished steel plate thickness 150～400mm that refers generally to, the steel plate substance reaches more than 30～80t, and the heaviest 100t that surpasses needs to adopt the special thick slab of extra wide to produce, wide 3000～the 4000mm of slab, thick 200～800mm.Because the increase of width of plate slab and thickness is more stricter than general Heavy Plate Production to the requirement of high-pressure water descaling.
Traditional cut deal high pressure water descaling device, though can pass through four high pressure collector pipes, slab is carried out water jet descaling in four surfaces up and down, single injector is welded on the collector pipe, because the gradient of nozzle and deflection angle are fixed and are single, iron scale impacts process at current and is difficult for breaking thoroughly, thereby causes scale removal effect bad, particularly the slab corner positions.And for big substance extra wide extra-thick plate blank, there have been anisotropic characteristics in slab after casting process, and the iron scale that generates in heating process also has certain anisotropy difference, only carries out de-scaling from a direction, is difficult to remove clean.Therefore, traditional de-scaling mode is difficult to reach the removing requirement of iron scale.So should be on the basis of general cut deal de-scaling, shape to the high pressure collector pipe, nozzle angle and arrangement form are studied, and propose a kind of novel universal descaling device that is used for before a kind of rectangular cross section billet rolling, to satisfy the demand of big substance extra wide extra-thick plate blank de-scaling.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned traditional de-scaling mode, provides a kind of rectangular cross section billet rolling preceding universal descaling device.It is simple in structure, and scale removal effect is good, and nozzle exchange is convenient, is convenient to cleaning and maintenance.
The technical solution of the utility model: the universal descaling device before the rectangular cross section billet rolling of the present utility model, comprise high-pressure hydraulic pump, supply channel, nozzle, high-pressure hydraulic pump is connected with closed loop high pressure collector pipe framework by supply channel, the inboard circle spiral nozzle collector of inwardly installing at interval of high pressure collector pipe framework, 4～12 nozzles of annular evenly assembling constitute the water spray disk on each spiral nozzle collector.
Described spiral nozzle collector comprises the person in charge who is connected with high pressure collector pipe framework, 4～12 arms that are communicated with the person in charge, 4～12 arms evenly distribute around being responsible for into frustum, and the axis of the water spray disk of 4～12 nozzles formations of arm outlet axis and the i.e. annular assembling of person in charge's axis is at conplane clip angle Q
1Scope be 5 °～25 °, each pipe port is installed nozzle, a plurality of jet expansions constitute the water spray disk on a circle; The angle of the outlet axes O direction of nozzle and the bus M of place frustum is Q
2, angle Q
2Scope be 5 °～45 °.
Described spiral nozzle collector comprises cylinder blanket, and the upper end cover of cylinder blanket is connected with the person in charge, and there is the annular circular ring that is connected with cylinder blanket the lower end of cylinder blanket, and the nozzle positioning port is arranged on the annular circular ring; Annular circular ring) and the Q of angle between the cylinder blanket and jet expansion
1The angle coupling.Described high-pressure hydraulic pump adopts the plunger type high-pressure water pump.
Described high pressure collector pipe framework is arranged before and after having 1～6, and each high pressure collector pipe framework has independent water intaking valve control.
The pipe section of described high pressure collector pipe framework is made up of anchor ring and plane, and the inboard of closed high collector pipe framework is the plane, and spiral nozzle collector is installed on the inboard plane.
When described high pressure collector pipe frame shape is closed rectangle, evenly arrange 3～10 spiral nozzle collectors along high pressure collector pipe lengths of frame direction; Evenly arrange 2～8 spiral nozzle collectors along high pressure collector pipe frame width direction; 1～3 spiral nozzle collector is respectively arranged at four angles.Before high-pressure sprayer, arrange a frame plate base turntable.
Disk diameter at the spiral nozzle collector of arranging in the middle part of high pressure collector pipe lengths of frame direction and width is φ 220mm～φ 300mm; The disk diameter of the spiral nozzle collector of arranging along high pressure collector pipe lengths of frame direction and width two ends is φ 160mm～φ 220mm; The disk diameter of four each spiral nozzle collectors of arranging of angle is φ 120mm～φ 160mm.
Described high pressure collector pipe frame shape is closed when square, is φ 220mm～φ 300mm at the disk diameter of the spiral nozzle collector of arranging along high pressure collector pipe lengths of frame direction and width middle part; The disk diameter of the spiral nozzle collector of two ends and four angle layouts is φ 160mm～φ 220mm.Before high-pressure sprayer, arrange a roll roll nobbling.
Advantage of the present utility model:
1, high pressure collector pipe framework is closed square, and jet can become a plurality of angles to hit to four surfaces of slab and bight, more helps smashing and breaking of iron scale.
2, adopt spiral nozzle collector.Spiral nozzle collector is a cylindrical shape, and nozzle is installed on the inclined-plane of its end face outer ring, and nozzle arranges that evenly nozzle-axis becomes Q with vertical direction
1Angle, a plurality of jet expansions constitute the water spray disk on a circle; The angle of the outlet axes O direction of nozzle and the bus M of place frustum is Q
2, the jet curl is sprayed, iron scale impacts process at current and easily breaks, thus scale removal effect is better, and nozzle is connected with spiral nozzle collector by screw thread, helps changing nozzle and cleaning.
3, there have been anisotropic characteristics in big substance extra wide extra-thick plate blank after casting process, and the iron scale that generates in heating process also has certain anisotropy difference, only carries out de-scaling from a direction, and difficult removing is clean.For this reason, adopt rectangle high pressure collector pipe framework, the spiral nozzle collector of three kinds of sizes of design, the major diameter collector is adopted at the middle part, and near the collector of slab limit portion employing than minor diameter, the collector of diameter minimum is adopted in the bight; Thoroughly remove the slab scale on surface, scale removal effect is better.
4, adopt the plunger type high-pressure water pump, can remedy the hydraulic pressure decline that the nozzle number causes more, and adopt self-cleaning filter device, safeguard the cleaning work amount with minimizing.
The utility model increases under few situation at cost, can substitute original de-scaling equipment, reaches effective purpose to the de-scaling of big substance extra wide extra-thick plate blank.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is a rectangle high pressure collector pipe framework schematic diagram of the present utility model.
Fig. 3 is a square high pressure collector pipe framework schematic diagram of the present utility model.
Fig. 4 is the A-A sectional schematic diagram of Fig. 2, Fig. 3.
Fig. 5 is the structural representation of spiral nozzle collector of the present utility model.
Fig. 6 is the structural representation of looking up of Fig. 5.
The specific embodiment
Fig. 1 is a general structure schematic diagram of the present utility model:
Universal descaling device before the rectangular cross section billet rolling of the present utility model comprises: high-pressure hydraulic pump 5 is communicated with high pressure collector pipe framework 1 by supply channel 8, inlet valve 3, nozzle is installed on the high pressure collector pipe framework 1,6 is big section square billet, and 4 is rotary stand or roll roll nobbling.
Described high pressure collector pipe framework 1 line direction before the slab is provided with 2～8 covers, and each high pressure collector pipe framework has 3 controls of independent inlet valve.Described high-pressure hydraulic pump adopts the plunger type high-pressure water pump.
Fig. 2 is the first embodiment rectangle high pressure collector pipe framework schematic diagram of the present utility model, Fig. 5 is the A-A sectional schematic diagram of Fig. 2: present embodiment high pressure collector pipe framework 1 is shaped as closed rectangle, evenly arranges 3～10 spiral nozzle collectors 2 along high pressure collector pipe lengths of frame direction; Evenly arrange 2～8 spiral nozzle collectors 2 along high pressure collector pipe frame width direction; 1～3 spiral nozzle collector 2 is respectively arranged at four angles.
The water pipe section of described high pressure collector pipe framework 1 is made up of anchor ring 1a and plane 1b, and closed rectangular inboard is plane 1b, and spiral nozzle collector 2 is installed on the inboard plane 1b.
Evenly arrange 3～10 spiral nozzle collectors 2 along high pressure collector pipe lengths of frame direction; Evenly arrange 2～8 spiral nozzle collectors 2 along high pressure collector pipe frame width direction; 1～3 spiral nozzle collector 2 is respectively arranged at four angles.
The spiral nozzle collector of three kinds of sizes of design, the major diameter collector is adopted at the middle part, and near the collector of slab limit portion employing than minor diameter, the collector of diameter minimum is adopted in the bight; On the slab thickness direction, the collector than minor diameter is adopted at the middle part.
Disk diameter at the spiral nozzle collector 2-1 that arranges in the middle part of high pressure collector pipe lengths of frame direction and width is φ 220mm～φ 300mm; The disk diameter of the spiral nozzle collector 2-2 that arranges along high pressure collector pipe lengths of frame direction and width two ends is φ 160mm～φ 220mm; The disk diameter of four each spiral nozzle collector 2-3 that arrange of angle is φ 120mm～φ 160mm.
Fully take into account slab wide to thick temperature drop difference to centre and limit portion zone, can adjust the distribution of described spiral nozzle collector, comprise its diameter, adjacent spacing and nozzle quantity.
First embodiment arranged a frame plate base turntable before high-pressure sprayer.
Fig. 3 is second embodiment of the present utility model, Fig. 5 is the A-A sectional schematic diagram of Fig. 3: high pressure collector pipe framework 1 is shaped as closed square, the water pipe section of high pressure collector pipe framework 1 is made up of anchor ring 1a and plane 1b, closed rectangular inboard is plane 1b, and spiral nozzle collector 2 is installed on the inboard plane 1b.Disk diameter at the spiral nozzle collector 2-1 that arranges in the middle part of high pressure collector pipe lengths of frame direction and width is φ 220mm～φ 300mm; The disk diameter of the spiral nozzle collector 2-2 of two ends and four angle layouts is φ 160mm～φ 220mm.Other is identical with embodiment one.This embodiment can give birth to iron scale to big section square billet surface stove and fully remove.Second embodiment arranged a roll roll nobbling before high-pressure sprayer.
Fig. 5 is the structural representation of spiral nozzle collector of the present utility model, and Fig. 6 is the structural representation of looking up of Fig. 5: annular is evenly assembled 4～12 nozzles formation water spray disks on each spiral nozzle collector 2.Described spiral nozzle collector 2 comprises the person in charge 2a that is connected with high pressure collector pipe framework 1, the a plurality of arm 2b that are communicated with person in charge 2a, a plurality of arm 2b become frustum evenly to distribute around being responsible for 2a, and arm 2b exports axis and is responsible for 2a axis (i.e. the axis of the water spray disk of 4～12 nozzles formations of annular assembling) at conplane clip angle Q
1Scope be 5 °～25 °, each arm 2b end is installed nozzle 2c, a plurality of nozzle 2c outlets constitute the water spray disk on a circle; The angle of the outlet axes O direction of nozzle 2c and the bus M of place frustum is Q
2, angle Q
2Scope be 5 °～45 °.Angle Q
2The jet curl of water ejection is sprayed.
Be the frustum face of Way out of the nozzle 2c angle that tilts, make the disk at the outlet of nozzle 2c and its place angle of direction deflection at circular arc at its place.
Slab 6 enters universal descaling device and carries out de-scaling after heating furnace 7 heating.Line direction is provided with 1～6 cover high pressure collector pipe framework 1 before the slab.Closed rectangle high pressure collector pipe framework is of a size of 800～5800mm * 1600～2200mm, determines according to the slab size.Even for guaranteeing the slab temperature drop, the spiral nozzle collector of three kinds of sizes of design, diameter is respectively φ 220mm～φ 300mm, φ 160mm～φ 220mm and φ 120mm～φ 160mm.On slab length and width, the major diameter spiral nozzle collector is adopted at the middle part, and near the spiral nozzle collector of slab limit portion employing than minor diameter, the spiral nozzle collector of diameter minimum is adopted in the bight.
During work, high-pressure hydraulic pump sucks the pressurization back with low-pressure water and supplies with high pressure collector pipe framework 1, by nozzle ejection circular spiral shape jet, because jet hits easier smashing and the disruptive oxidation iron sheet from six faces and bight.
Through after one de-scaling, slab retreats on the rotary stand for the big section steel billet of rectangle, half-twist, and then enter high pressure collector pipe framework, from laterally carrying out one de-scaling, enter roughing afterwards.
Before entering high pressure collector pipe framework,, can carry out fragmentation to the square billet scale on surface earlier for square big section steel billet, enter the de-scaling of high pressure collector pipe framework more earlier through a roll roll nobbling.
Core of the present utility model is rectangle high pressure collector pipe framework installed inside one a circle spiral nozzle collector; the axis of the nozzle of spiral nozzle collector with removed plaited surface by the de-scaling slab and form an angle; the current that make nozzle ejection spirality circlewise hit steel slab surface; therefore; every employing high pressure collector pipe framework and the current that make nozzle ejection spirality circlewise hit any form of steel slab surface, according to belonging to protection domain of the present utility model.
Claims (10)
1. the universal descaling device before the rectangular cross section billet rolling, comprise high-pressure hydraulic pump, supply channel, nozzle, it is characterized in that: high-pressure hydraulic pump is connected with closed loop high pressure collector pipe framework (1) by supply channel, the inboard inwardly interval of high pressure collector pipe framework (1) is installed one and is enclosed spiral nozzle collector (2), and each spiral nozzle collector (2) is gone up annular and evenly assembled 4～12 nozzles formation water spray disks.
2. the universal descaling device before the rectangular cross section billet rolling according to claim 1, it is characterized in that: described spiral nozzle collector (2) comprises the person in charge (2a) who is connected with high pressure collector pipe framework (1), 4～12 arms (2b) that are communicated with the person in charge (2a), 4～12 arms (2b) become frustum evenly to distribute around being responsible for (2a), and the axis of the water spray disk that 4～12 nozzles of arm (2b) outlet axis and annular assembling constitute is at conplane clip angle Q
1Scope be 5 °～25 °, 4～12 nozzles (2c) are installed on arm (2b) port, a plurality of nozzles (2c) export on a circle, constitute the water spray disk; The angle of the outlet axes O direction of nozzle (2c) and the bus M of place frustum is Q
2, angle Q
2Scope be 5 °～45 °.
3. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2, it is characterized in that: described spiral nozzle collector (2) comprises cylinder blanket (2d), the upper end cover (2g) of cylinder blanket (2d) is connected with the person in charge (2a), there is the annular circular ring (2e) that is connected with cylinder blanket (2d) lower end of cylinder blanket (2d), and nozzle positioning port (2f) is arranged on the annular circular ring (2e); The Q of angle between annular circular ring (2e) and the cylinder blanket (2d) and nozzle (2c) outlet
1The angle coupling.
4. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2 is characterized in that: described high-pressure hydraulic pump adopts the plunger type high-pressure water pump.
5. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2 is characterized in that: arrange before and after described high pressure collector pipe framework (1) has 1～6, each high pressure collector pipe framework has independent water intaking valve control.
6. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2, it is characterized in that: the pipe section of described high pressure collector pipe framework (1) is made up of anchor ring and plane, the inboard of closed high collector pipe framework (1) is the plane, and spiral nozzle collector (2) is installed on the inboard plane.
7. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2, it is characterized in that: when described high pressure collector pipe framework (1) is shaped as closed rectangle, evenly arrange 3～10 spiral nozzle collectors (2) along high pressure collector pipe lengths of frame direction; Evenly arrange 2～8 spiral nozzle collectors (2) along high pressure collector pipe frame width direction; 1～3 spiral nozzle collector (2) is respectively arranged at four angles.
8. the universal descaling device before the rectangular cross section billet rolling according to claim 7 is characterized in that: the disk diameter at the spiral nozzle collector of arranging in the middle part of high pressure collector pipe lengths of frame direction and width (2-1) is φ 220mm～φ 300mm; The disk diameter of the spiral nozzle collector of arranging along high pressure collector pipe lengths of frame direction and width two ends (2-2) is φ 160mm～φ 220mm; The disk diameter of four each spiral nozzle collectors of arranging (2-3) of angle is φ 120mm～φ 160mm.
9. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2, it is characterized in that: described high pressure collector pipe framework (1) is shaped as closed when square, is φ 220mm～φ 300mm at the disk diameter of the spiral nozzle collector of arranging along high pressure collector pipe lengths of frame direction and width middle part (2-1); The disk diameter of the spiral nozzle collector (2-2) of two ends and four angle layouts is φ 160mm～φ 220mm.
10. the universal descaling device before the rectangular cross section billet rolling according to claim 1 and 2 is characterized in that: arranged a frame plate base turntable or roll roll nobbling before high-pressure sprayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201247085U CN201735609U (en) | 2010-03-02 | 2010-03-02 | Universal descaling device for rectangular-section billets to be rolled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201247085U CN201735609U (en) | 2010-03-02 | 2010-03-02 | Universal descaling device for rectangular-section billets to be rolled |
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| CN201735609U true CN201735609U (en) | 2011-02-09 |
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| CN2010201247085U Expired - Fee Related CN201735609U (en) | 2010-03-02 | 2010-03-02 | Universal descaling device for rectangular-section billets to be rolled |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756003A (en) * | 2011-04-28 | 2012-10-31 | 宝山钢铁股份有限公司 | Continuous jet descaling system for cold-state metal part surface |
| CN104801555A (en) * | 2015-05-13 | 2015-07-29 | 广东韶钢松山股份有限公司 | Efficient descaling method for square billets |
| CN107442586A (en) * | 2017-08-25 | 2017-12-08 | 宝钢特钢韶关有限公司 | The efficient descaling device of more specification square billets and descaling process |
| CN108421836A (en) * | 2018-04-09 | 2018-08-21 | 新疆八钢铁股份有限公司 | shaped steel descaling device |
| CN111940519A (en) * | 2019-05-16 | 2020-11-17 | 辽宁前杜实业发展集团有限公司 | Multistage cooling system of steel rolling production line |
-
2010
- 2010-03-02 CN CN2010201247085U patent/CN201735609U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756003A (en) * | 2011-04-28 | 2012-10-31 | 宝山钢铁股份有限公司 | Continuous jet descaling system for cold-state metal part surface |
| CN104801555A (en) * | 2015-05-13 | 2015-07-29 | 广东韶钢松山股份有限公司 | Efficient descaling method for square billets |
| CN107442586A (en) * | 2017-08-25 | 2017-12-08 | 宝钢特钢韶关有限公司 | The efficient descaling device of more specification square billets and descaling process |
| CN108421836A (en) * | 2018-04-09 | 2018-08-21 | 新疆八钢铁股份有限公司 | shaped steel descaling device |
| CN111940519A (en) * | 2019-05-16 | 2020-11-17 | 辽宁前杜实业发展集团有限公司 | Multistage cooling system of steel rolling production line |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160302 |