CN101780486B - Universal dephosphorizing device before billet rolling - Google Patents
Universal dephosphorizing device before billet rolling Download PDFInfo
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- CN101780486B CN101780486B CN2010101189243A CN201010118924A CN101780486B CN 101780486 B CN101780486 B CN 101780486B CN 2010101189243 A CN2010101189243 A CN 2010101189243A CN 201010118924 A CN201010118924 A CN 201010118924A CN 101780486 B CN101780486 B CN 101780486B
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- spiral nozzle
- collector pipe
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Abstract
The invention provides a universal descaling device before billet rolling, which comprises a high-pressure water pump, a water supply pipeline and nozzles, wherein the high-pressure water pump is connected with a closed-loop high-pressure water collecting pipe framework through the water supply pipeline, a circle of spiral nozzle collectors are inwards installed at intervals at the inner side of the high-pressure water collecting pipe framework, and the nozzles are assembled on the spiral nozzle collectors, so that the water flows sprayed from the nozzles annularly and spirally beat on the surface of a plate blank. 4-12 nozzles are annularly and uniformly assembled on each spiral nozzle collector to form a water spray disk. The spiral nozzle collector comprises a main pipe and a plurality of branch pipes, wherein the main pipe is connected with the high-pressure water collecting pipe framework, the branch pipes are communicated with the main pipe and are in uniform frustum-shaped distribution by surrounding the main pipe, the small included angle Q1 of the outlet axial line of each branch pipe and the axial line of the main pipe on the same plane is within the range of 5-45 degrees, the nozzle is installed at the end of each branch pipe, and a plurality of nozzle outlets are positioned on a circle; and the included angle of the O direction of the outlet axial line of the nozzle and the bus M of a frustum on which the nozzle is positioned is 5-45 degrees.
Description
Technical field
The present invention relates to the preceding universal descaling device of a kind of 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 through 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 get 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 very big influence to 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 as far as big substance extra wide extra-thick plate blank, there have been anisotropic characteristics in slab after casting process, and the iron scale that in heating process, generates 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 billet rolling, to satisfy the demand of big substance extra wide extra-thick plate blank de-scaling.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned traditional de-scaling mode, provide a kind of 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.
Technical scheme of the present invention: the universal descaling device before the billet rolling of the present invention comprises 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 through supply channel, and a circle spiral nozzle collector is installed at the inboard inside interval of high pressure collector pipe framework, and annular is evenly assembled 4～12 nozzles formation water spray disks 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, and 4～12 arms evenly distribute around being responsible for into frustum, and arm outlet axis and person in charge's axis are at conplane clip angle Q
1Scope be 5 °～45 °, each pipe end is installed nozzle, a plurality of jet expansions constitute the water spray disk on a circle; The outlet axes O direction of nozzle is Q with the angle of the bus M of place frustum
2, angle Q
2Scope be 5 °～45 °.
Described spiral nozzle collector comprises cylinder blanket, the upper end cover of cylinder blanket be connected with being responsible for, 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; Angle between annular circular ring and the cylinder blanket and the exit angle of nozzle coupling.
Described high-pressure hydraulic pump adopts the plunger type high-pressure water pump.
Described high pressure collector pipe framework has 1～6, and each high pressure collector pipe framework has independent water intaking valve control.
The water 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.
Described high pressure collector pipe frame shape is closed rectangle, evenly arranges 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.
Universal descaling device before the described billet rolling is φ 220mm～φ 300mm at the disk diameter along the high pressure collector pipe lengths of frame direction and the spiral nozzle collector of width middle part layout; 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 square, and its section is made up of anchor ring and horizontal plane, and closed rectangular inboard is the plane, and spiral nozzle collector is installed on the inboard plane.
Described high pressure collector pipe frame shape is a closed circle.
Advantage of the present invention:
1, high pressure collector pipe framework is closed rectangle, 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
1The angle, a plurality of nozzle 2c outlets constitute the water spray disk on a circle; The outlet axes O direction of nozzle 2c is Q with the angle of the bus M of place frustum
2, the jet curl is sprayed, iron scale impacts process at current and is prone to break, thus scale removal effect is better, and nozzle is connected with spiral nozzle collector through screw thread, helps changing nozzle and cleaning.
3, circular high pressure collector pipe framework adopts the column slit injector; The current that sprayed can fully contact with the surface of circular cross section steel billet; Reach the effect of best broken iron scale, nozzle is connected with spiral nozzle collector through screw thread, helps changing nozzle and cleaning.This device can be given birth to iron scale to circular cross section billet surface stove and fully removed.
4, there have been anisotropic characteristics in big substance extra wide extra-thick plate blank after casting process, and the iron scale that in heating process, generates 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, adopts the collector than minor diameter near slab limit portion, and the minimum collector of diameter is adopted in the bight; Thoroughly remove the slab scale on surface, scale removal effect is better.
5, 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 present invention 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 sketch map of the present invention.
Fig. 2 is a rectangle high pressure collector pipe framework sketch map of the present invention.
Fig. 3 is a square high pressure collector pipe framework sketch map of the present invention.
Fig. 4 is a circular high pressure collector pipe framework sketch map of the present invention.
Fig. 5 is the A-A sectional schematic diagram of Fig. 2, Fig. 3, Fig. 4.
Fig. 6 is the structural representation of spiral nozzle collector of the present invention.
Fig. 7 is the structural representation of looking up of Fig. 6.
The specific embodiment
Fig. 1 is a general structure sketch map of the present invention:
Universal descaling device before the billet rolling of the present invention comprises: high-pressure hydraulic pump 5 is communicated with high pressure collector pipe framework 1 through supply channel 8, inlet valve 3, and nozzle is installed on the high pressure collector pipe framework 1, and 6 is big substance extra wide extra-thick plate blank.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 a first embodiment of the present invention rectangle high pressure collector pipe framework sketch map; 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 said 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, adopts the collector than minor diameter near slab limit portion, and the minimum collector of diameter 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 in the middle part of high pressure collector pipe lengths of frame direction and width, arranges 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.
It is wide to adjusting the distribution of said spiral nozzle collector with thick to the regional temperature drop difference in centre and limit portion to fully take into account slab, comprises its diameter, adjacent spacing and nozzle quantity.
Fig. 3 is second embodiment of the present invention; 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 in the middle part of high pressure collector pipe lengths of frame direction and width, arranges 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.
Fig. 4 is the 3rd embodiment of the present invention, and Fig. 5 is the A-A sectional schematic diagram of Fig. 4: high pressure collector pipe framework 1 is shaped as closed circle.Spiral nozzle collector 2 evenly distributes.The water pipe section of high pressure collector pipe framework 1 is made up of anchor ring 1a and plane 1b, and the inboard of closed circle is plane 1b, and spiral nozzle collector 2 is installed on the inboard plane 1b.Present embodiment provides a kind of device that can be effective to the circular cross section descaling of steel stock.
Fig. 6 is the structural representation of spiral nozzle collector of the present invention, and Fig. 7 is the structural representation of looking up of Fig. 6: annular is evenly assembled 4～12 nozzles formation water spray disks on each spiral nozzle collector 2.Said 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 the 2a axis 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 outlet axes O direction of nozzle 2c is Q with the angle of the bus M of place frustum
2, angle Q
2Scope be 5 °～45 °.Angle Q
2The tangential direction that the direction that water is sprayed is justified in nozzle 2c outlet has component, and the jet curl is sprayed.
Be the frustum face of Way out at its place of the nozzle 2c angle that tilts, the disk at outlet and its place that makes nozzle 2c is in angle of direction deflection of circular arc.
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 from six faces and bight, smashes more easily and the disruptive oxidation iron sheet.
Core of the present invention 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 scope of the present invention.
Claims (9)
1. the universal dephosphorizing device before the billet rolling; Comprise high-pressure hydraulic pump; Supply channel, nozzle is characterized in that: high-pressure hydraulic pump is connected with closed loop high pressure collector pipe framework (1) through 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; 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 arm (2b) outlet axis and the person in charge (2a) axis are at conplane clip angle Q
1Scope be 5 °～25 °, each arm (2b) end is installed nozzle (2c), a plurality of nozzles (2c) exports on a circle, constitute the disk of spraying water; The outlet axes O direction of nozzle (2c) is Q with the angle of the bus M of place frustum
2, angle Q
2Scope be 5 °～45 °.
2. the universal dephosphorizing device before the billet rolling according to claim 1; It is characterized in that: described spiral nozzle collector (2) comprises cylinder blanket (2d); The upper end cover 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.
3. the universal dephosphorizing device before the 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.
4. the universal dephosphorizing device before the 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.
5. the universal dephosphorizing device before the billet rolling according to claim 1 and 2; It is characterized in that: the water 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.
6. the universal dephosphorizing device before the billet rolling according to claim 1 and 2, it is characterized in that: described 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.
7. the universal dephosphorizing device before the billet rolling according to claim 6 is characterized in that: the disk diameter at the spiral nozzle collector of in the middle part of high pressure collector pipe lengths of frame direction and width, arranging (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.
8. the universal dephosphorizing device before the billet rolling according to claim 1 and 2; It is characterized in that: described high pressure collector pipe framework (1) is shaped as closed 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.
9. the universal dephosphorizing device before the billet rolling according to claim 1 and 2, it is characterized in that: described high pressure collector pipe framework (1) is shaped as closed circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101189243A CN101780486B (en) | 2010-03-02 | 2010-03-02 | Universal dephosphorizing device before billet rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101189243A CN101780486B (en) | 2010-03-02 | 2010-03-02 | Universal dephosphorizing device before billet rolling |
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| Publication Number | Publication Date |
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| CN101780486A CN101780486A (en) | 2010-07-21 |
| CN101780486B true CN101780486B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101189243A Expired - Fee Related CN101780486B (en) | 2010-03-02 | 2010-03-02 | Universal dephosphorizing device before billet rolling |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112474838B (en) * | 2020-11-09 | 2022-05-17 | 江苏省沙钢钢铁研究院有限公司 | Wide and thick plate full-flow descaling device, descaling method and wide and thick plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083419A (en) * | 1992-07-30 | 1994-03-09 | 丹尼利机械厂联合股票公司 | Water descaling unit |
| US5502881A (en) * | 1993-08-23 | 1996-04-02 | Gaydoul; Juergen | Apparatus for descaling substantially flat surfaces of hot rolled stock |
| CN1229701A (en) * | 1998-01-23 | 1999-09-29 | Sms舒路曼-斯玛公司 | Appts. for removing oxidized skin from rolled article |
| CN2553919Y (en) * | 2002-06-25 | 2003-06-04 | 长沙矿山研究院 | Welding type descaling ring for high-pressure water thermal state descaling device |
| CN1925934A (en) * | 2004-02-27 | 2007-03-07 | 赫梅蒂克水力公司 | Hydraulic equipment for hot-rolled member scale removal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11216513A (en) * | 1998-01-28 | 1999-08-10 | Nkk Corp | Steel member descaling equipment |
-
2010
- 2010-03-02 CN CN2010101189243A patent/CN101780486B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083419A (en) * | 1992-07-30 | 1994-03-09 | 丹尼利机械厂联合股票公司 | Water descaling unit |
| US5502881A (en) * | 1993-08-23 | 1996-04-02 | Gaydoul; Juergen | Apparatus for descaling substantially flat surfaces of hot rolled stock |
| CN1229701A (en) * | 1998-01-23 | 1999-09-29 | Sms舒路曼-斯玛公司 | Appts. for removing oxidized skin from rolled article |
| CN2553919Y (en) * | 2002-06-25 | 2003-06-04 | 长沙矿山研究院 | Welding type descaling ring for high-pressure water thermal state descaling device |
| CN1925934A (en) * | 2004-02-27 | 2007-03-07 | 赫梅蒂克水力公司 | Hydraulic equipment for hot-rolled member scale removal |
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| CN101780486A (en) | 2010-07-21 |
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