CN101780445B - Spiral nozzle collector for dephosphorization before billet rolling - Google Patents
Spiral nozzle collector for dephosphorization before billet rolling Download PDFInfo
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- CN101780445B CN101780445B CN2010101188999A CN201010118899A CN101780445B CN 101780445 B CN101780445 B CN 101780445B CN 2010101188999 A CN2010101188999 A CN 2010101188999A CN 201010118899 A CN201010118899 A CN 201010118899A CN 101780445 B CN101780445 B CN 101780445B
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Abstract
The invention provides a spiral nozzle collector for dephosphorization before billet rolling, which comprises water pipes, nozzles, a main pipe and 4-12 branch pipes, wherein the 4-12 branch pipes are communicated with the main pipe and annularly and uniformly assembled into 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 5-25 degrees, the nozzle is installed at the port of each branch pipe, and a plurality of nozzle outlets are uniformly distributed on a circle to form a water spray disk; and the included angle of the O direction of the outlet axial line of the nozzle and the bus M of the frustum on which the nozzle is positioned is Q2, and the angle Q2 is within the range of 5-45 degrees. The spiral nozzle collector comprises a cylindrical shell, wherein the upper end cover of the cylindrical shell is connected with the main pipe, a circular ring connected with the cylindrical shell is arranged at the lower end of the cylindrical shell, and a nozzle positioning hole is arranged on the circular ring; and the included angle between the circular ring and the cylindrical shell is matched with the included angle Q1 of the nozzle outlets.
Description
Technical field
The present invention relates to the spiral nozzle collector of the preceding de-scaling 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 spiral nozzle collector that is used for the preceding de-scaling of 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, the spiral nozzle collector of the preceding de-scaling of a kind of billet rolling is provided.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 spiral nozzle collector of de-scaling before the billet rolling of the present invention; Comprise water pipe; Nozzle is characterized in that: described spiral nozzle collector comprises the person in charge, a plurality of arms that are communicated with the person in charge; A plurality of arms evenly are assembled into the frustum distribution around being responsible for annular, and arm exports axis and is responsible for axis at conplane clip angle Q
1Scope be 5 °～25 °, each pipe end is installed nozzle, a plurality of jet expansions constitute the water spray disk on a circle; Nozzle) outlet axes O direction is Q with the angle of the bus M of place frustum
2, angle Q
2Scope be 5 °～45 °.
Annular is evenly assembled 4～12 arms and nozzle on each spiral nozzle collector.
Described spiral nozzle collector comprises cylinder blanket, and the upper end cover of cylinder blanket is connected with the person in charge, and the annular circular ring that the lower end of cylinder blanket has and only is connected has the nozzle locating hole on the annular circular ring; The angle Q of angle between annular circular ring and the cylinder blanket and jet expansion
1Coupling.
The disk diameter that annular 4～12 arms of even assembling and nozzle constitute on the described spiral nozzle collector is φ 220mm～φ 300mm.
Annular is evenly assembled 6～8 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 160mm～φ 220mm.
Annular is evenly assembled 4～6 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 120mm～φ 160mm.
The angle Q of the bus M of the outlet axes O direction of described nozzle and place frustum
2Scope be 25 °～30 °.
The angle Q of the bus M of the outlet axes O direction of described nozzle and place frustum
2Scope be 30 °～45 °.
Advantage of the present invention:
Spiral nozzle collector of the present invention 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 outlet axes O direction of nozzle 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.
Description of drawings
Fig. 1 is the structural representation of spiral nozzle collector of the present invention.
Fig. 2 is the structural representation of looking up of Fig. 1.
The specific embodiment
Like Fig. 1, Fig. 2:
Spiral nozzle collector of the present invention comprises is responsible for 1, and with a plurality of arms 2 that the person in charge 1 is communicated with, a plurality of arms 2 center on the person in charge's 1 annular and evenly are assembled into the frustum distribution, and arm 2 outlet axis and the person in charge's 1 axis are at conplane clip angle Q
1Scope be 5 °～25 °, each arm 2 end is installed nozzle 3, a plurality of nozzles 3 outlets constitute the water spray disk on a circle; The outlet axes O direction of nozzle 3 is Q with the angle of the bus M of place frustum
2, angle Q
2Scope be 5 °～45 °.Be the frustum face of Way out at its place of nozzle 3 angle that tilts, the disk at outlet and its place that makes nozzle 2c is in angle of direction deflection of circular arc.
Annular is evenly assembled 4～12 arms and nozzle on each spiral nozzle collector.
Described spiral nozzle collector comprises cylinder blanket 4, and the upper end cover 7 of cylinder blanket 4 is connected with the person in charge 1, and the annular circular ring 5 that the lower end of cylinder blanket 4 has and only is connected has nozzle locating hole 6 on the annular circular ring 5; The angle of the outlet of angle between annular circular ring 5 and the cylinder blanket 4 and nozzle (3) is 90 °+5 °～25 °, the exit angle coupling of angle and nozzle 3.The outlet of nozzle 3 is embedded in the nozzle positioning port 6, but does not stretch out.3 location of annular circular ring 5 and 4 pairs of arms of cylinder blanket 2 and nozzle and protective effect.
Annular is evenly assembled 8～12 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 220mm～φ 300mm.
Annular is evenly assembled 6～8 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 160mm～φ 220mm.
Annular is evenly assembled 4～6 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 120mm～φ 160mm.
The angle Q of the bus M of the outlet axes O direction of nozzle 3 and place frustum
2Scope be 25 °～30 °.Angle Q
2When being 25 °～30 °, for furnace temperature lower (about 1000 ℃) the best.
The angle Q of the bus M of the outlet axes O direction of nozzle 3 and place frustum
2Scope be 30 °～45 °.Angle Q
2When being 30 °～45 °, for furnace temperature higher (1100 ℃～1150 ℃) the best.
During work, high-pressure hydraulic pump by nozzle ejection circular spiral shape jet, because jet hits from a plurality of and bight, smashes water pressurization back and the disruptive oxidation iron sheet more easily.
Core of the present invention be nozzle axis 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; The current of every employing nozzle ejection are any form of spirality strike steel slab surface circlewise, all belongs to protection scope of the present invention.
Claims (5)
1. the spiral nozzle collector of de-scaling before the billet rolling; Comprise water pipe; Nozzle is characterized in that: described spiral nozzle collector comprises the person in charge (1), a plurality of arms (2) that are communicated with the person in charge (1); A plurality of arms (2) evenly assemble around being responsible for (1) annular, and arm (2) outlet axis and the person in charge (1) axis are at conplane clip angle Q
1Scope be 5 °～25 °, each arm (2) port is installed nozzle (3), a plurality of nozzles (3) exports on a circle, constitute the disk of spraying water; The angle of the bus M of the frustum face that the outlet axes O direction of nozzle (3) and a plurality of arm (2) outside constitute is Q
2, angle Q
2Scope be 30 °～45 °; Described spiral nozzle collector comprises cylinder blanket (4), and the upper end cover (7) of cylinder blanket (4) is connected with being responsible for (1), and there is the annular circular ring (5) that is attached thereto the lower end of cylinder blanket (4), and nozzle locating hole (6) is arranged on the annular circular ring (5); The angle Q of angle between annular circular ring (5) and the cylinder blanket (4) and nozzle (3) outlet
1Coupling.
2. the spiral nozzle collector of de-scaling before the billet rolling according to claim 1 is characterized in that: annular is evenly assembled 4～12 arms and nozzle on each spiral nozzle collector.
3. the spiral nozzle collector of de-scaling before the billet rolling according to claim 1 and 2 is characterized in that: the disk diameter that annular 4～12 arms of even assembling and nozzle constitute on the described spiral nozzle collector is φ 220mm～φ 300mm.
4. the spiral nozzle collector of de-scaling before the billet rolling according to claim 1 and 2; It is characterized in that: annular is evenly assembled 6～8 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 160mm～φ 220mm.
5. the spiral nozzle collector of de-scaling before the billet rolling according to claim 1 and 2; It is characterized in that: annular is evenly assembled 4～6 arms and nozzle on the described spiral nozzle collector, and the disk diameter that a plurality of nozzles constitute is φ 120mm～φ 160mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101188999A CN101780445B (en) | 2010-03-02 | 2010-03-02 | Spiral nozzle collector for dephosphorization before billet rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101188999A CN101780445B (en) | 2010-03-02 | 2010-03-02 | Spiral nozzle collector for dephosphorization before billet rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101780445A CN101780445A (en) | 2010-07-21 |
| CN101780445B true CN101780445B (en) | 2012-09-26 |
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ID=42520657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101188999A Expired - Fee Related CN101780445B (en) | 2010-03-02 | 2010-03-02 | Spiral nozzle collector for dephosphorization before billet rolling |
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| CN (1) | CN101780445B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107767B (en) * | 2014-06-05 | 2015-11-04 | 中冶建筑研究总院有限公司 | A kind of for the spiral nozzle in cooling controlling and rolling controlling process |
| CN107520162A (en) * | 2017-08-31 | 2017-12-29 | 兰溪市拜瑞珂科技服务有限公司 | A kind of taper roller surface processing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878966A (en) * | 1995-10-03 | 1999-03-09 | Kyoritsu Gokin Mfg. Co., Ltd. | Descaling nozzle |
| CN1925934A (en) * | 2004-02-27 | 2007-03-07 | 赫梅蒂克水力公司 | Hydraulic equipment for hot-rolled member scale removal |
| US7367518B2 (en) * | 2002-12-25 | 2008-05-06 | Kyoritsu Gokin Co., Ltd. | Descaling nozzle |
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 CN2010101188999A patent/CN101780445B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878966A (en) * | 1995-10-03 | 1999-03-09 | Kyoritsu Gokin Mfg. Co., Ltd. | Descaling nozzle |
| US7367518B2 (en) * | 2002-12-25 | 2008-05-06 | Kyoritsu Gokin Co., Ltd. | Descaling nozzle |
| 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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| Publication number | Publication date |
|---|---|
| CN101780445A (en) | 2010-07-21 |
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