CN106862511B - Continuous casting crystallizer foot-roller filters spray head - Google Patents
Continuous casting crystallizer foot-roller filters spray head Download PDFInfo
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- CN106862511B CN106862511B CN201710129115.4A CN201710129115A CN106862511B CN 106862511 B CN106862511 B CN 106862511B CN 201710129115 A CN201710129115 A CN 201710129115A CN 106862511 B CN106862511 B CN 106862511B
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- cone
- frustum
- cylinder
- stage body
- spray orifice
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
Abstract
The present invention relates to a kind of continuous casting crystallizer foot-rollers to filter spray head, belongs to metallurgical continuous casting equipment technical field；Including nozzle and frustum of a cone tubular strainer；The nozzle is made of cylinder, inverted frustum of a cone and rectangular stage body, the larger bottom surface of frustum of a cone is fixedly connected with the bottom of cylinder, smaller bottom surface is fixedly connected with the upper surface of rectangular stage body, the inside of frustum of a cone is provided with cavity up and down, spray orifice up and down is provided on rectangular stage body, the cavity inside frustum of a cone is connected to the inner cavity of spray orifice and cylinder respectively；The cone bottom of the frustum of a cone tubular strainer is fixedly connected with the top of cylinder, and side wall is provided with the watering slot of multiple perforation wall thickness.Frustum of a cone tubular strainer of the present invention can effectively filter secondary cooling water, prevent the spray orifice of rust deposite plug nozzle, substantially extend the working time of sufficient roller spray head.
Description
Technical field
The present invention relates to a kind of continuous casting crystallizer foot-rollers to filter spray head, belongs to metallurgical continuous casting equipment technical field.
Background technique
Continuous cast mold is the key equipment that molten steel is cooled into continuous casting billet, the internal knot for being generally hollow removable
Brilliant device copper pipe, outside be cast iron base and shell, internal crystallization device copper pipe press from both sides interflow cooling soft water；Red-hot molten steel
Enter from crystallizer copper pipe upper end, is pierced by from crystallizer copper pipe lower end, in the process, the cooling in crystallizer copper pipe interlayer is soft
Water flow at high speed takes away heat, prevents crystallizer copper tube body because of the excessively high scaling loss of temperature, while the molten steel in cooler crystallizer makes
The outer layer hard shell for preliminarily forming continuous casting billet；Continuous casting billet at this time be it is case hardening, inside is still liquid molten steel, needs to install
The lasting cooling of continuous casting billet is completed in the sufficient roller spray head of crystallizer end and subsequent secondary cooling water spray head.
Secondary cooling water channel is prefabricated in continuous cast mold cast iron housing, secondary cooling water enters through this pipeline is installed on crystallizer end
In the sufficient roller spray head at end；Sufficient roller spray head is that continuous casting billet goes out first of cooling process after crystallizer, the sufficient generally symmetrical installation 4 of roller spray head
To 8, intensity of cooling and effect directly affect continuous casting billet into base quality, once it is stifled to occur sufficient roller spray head in process of production
Plug, water yield the case where becoming smaller, it is heavy then need to stop production and replace or cleaning spray head gently then because inhomogeneous cooling causes casting blank bending, it can be sternly
Ghost image rings production.
Since continuous cast mold is expensive, for cost consideration, when crystallizer breaks down, general enterprises all will not
Frequently replacement, but repair and use repeatedly, in the process, prefabricated secondary cooling water inner wall of the pipe will appear rust in crystallizer shell
Phenomena such as erosion, fouling, because sufficient roller spray nozzle very little will block spray orifice once there is the rust deposite greater than injection diameter to fall off,
Influence cooling effect.The counter-measure of domestic each steel mill is all periodic cleaning replacement spray head at present, by taking one steel mill of Handan Iron and Steel Co as an example,
Time replacement of cleaning in (about 15 hours or so) primary sufficient roller spray head need to be each poured when serious, occupy a large amount of manpower and material resources of factory,
And the continuous casting billet distance due to position where crystallizer foot roll spray head apart from red heat is less than 10cm, no sufficient space installation filtering dress
It sets, needs to frequently replace the sufficient roller spray head of blocking, seriously affect normal production.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of continuous casting crystallizer foot-rollers to filter spray head, foot roller filtering spray
Included strainer, can effectively avoid blocking of the rust deposite to spray orifice, and can be recycled after the cleaning, and substantially extending sufficient roller spray head makes
With the service life and persistently using the time, guarantee normal production.
The technical solution for solving above-mentioned technical problem is:
Continuous casting crystallizer foot-roller filters spray head, including nozzle and frustum of a cone tubular strainer；The nozzle is by cylinder, inversion
Frustum of a cone and rectangular stage body constitute, the larger bottom surface of frustum of a cone is fixedly connected with the bottom of cylinder, smaller bottom surface and side
The upper surface of shape stage body is fixedly connected, and the inside of frustum of a cone is provided with cavity up and down, is provided on rectangular stage body and is passed through up and down
Logical spray orifice, the cavity inside frustum of a cone are connected to the inner cavity of spray orifice and cylinder respectively；The frustum of a cone tubular strainer
Cone bottom is fixedly connected with the top of cylinder, and side wall is provided with the watering slot of multiple perforation wall thickness.
Above-mentioned continuous casting crystallizer foot-roller filters spray head, and the rectangular stage body is the square stage body that quadrangle is chamfering；
The larger basal diameter of the frustum of a cone is identical as the diameter of cylinder, the diagonal line length of the diameter of smaller bottom surface and rectangular stage body
It spends identical；Cavity inside frustum of a cone is inverted conical shape, and the spray orifice on rectangular stage body is by rectangular stage body upper and lower surfaces
The cylindrical hole of the heart, spray orifice are connected to the vertex of a cone of inverted conical shape cavity inside frustum of a cone；After nozzle assembles, cylinder
The axis coincidence of axis, the axis of frustum of a cone, the axis of inverted conical shape cavity and spray orifice；The frustum of a cone tubular strainer
The internal diameter of cone bottom diameter and cylinder matches, and the multiple watering slot size is identical, the same cross of frustum of a cone tubular strainer
It cuts on disc and averagely opens up 4 watering slots.
Above-mentioned continuous casting crystallizer foot-roller filters spray head, and the cylinder upper outside wall is provided with and continuous cast mold lower end water
The cylinder external screw thread that pipe internal screw thread matches, cylinder inner wall top are provided with cylinder internal screw thread, and inner wall lower is fixed with rotating fins；
The lateral wall at frustum of a cone tubular strainer cone bottom is provided with outside the strainer to match with the cylinder internal screw thread on cylinder inner wall top
Screw thread, the upper end face closure of frustum of a cone tubular strainer, it is logical less than injection diameter that closed upper surface offers multiple diameters
Hole, the height of side wall watering slot are less than the 1/2 of injection diameter.
The course of work of the invention are as follows:
Frustum of a cone tubular strainer is passed through to the cylinder inner wall top of the strainer external screw thread and nozzle of boring downside wall first
Cylinder internal screw thread is threadedly coupled, to form the spray head of an included strainer；Then the cylinder of nozzle is passed through into cylinder top circle
Cylinder external screw thread is threadedly coupled with continuous cast mold lower end water pipe internal screw thread, at this point, frustum of a cone tubular strainer is in continuous casting crystallining
Inside the water pipe of device lower end；In production process, pass through frustum of a cone through continuous cast mold lower end water pipe entrainment of the secondary cooling water of rust deposite
When the through-hole and side wall watering slot of tubular strainer upper surface are sent to spray head position, the blocky rust deposite in water is truncated taper barrel filter
Net intercepts, since the through-hole diameter of frustum of a cone tubular strainer upper surface and the height of side wall watering slot are respectively less than the spray orifice of nozzle
Diameter, thus in filtered secondary cooling water remaining rust deposite will not plug nozzle spray orifice, secondary cooling water enter nozzle through rotate wing
High-speed rotational is formed after piece water conservancy diversion, umbrella shape water curtain is formed after spraying from the spray orifice of nozzle and is sprayed onto completion cooling on slab.It is producing
When gap is overhauled, the present invention can be removed from continuous cast mold lower end water pipe and carry out rust deposite cleaning, dress can be returned again by cleaning out
Secondary use, to substantially extend the service life of spray head and use the time, save the cost guarantees normal production.
The invention has the benefit that
Frustum of a cone tubular strainer of the present invention can effectively filter secondary cooling water, prevent the spray orifice of rust deposite plug nozzle, substantially prolong
The working time of considerable roller spray head；Frustum of a cone tubular strainer makes nozzle water inlet area reach the 2 times or more of former water inlet area, has
Effect water inlet area reaches 1.3 times or so of former water inlet area, further improves spray head anti-clogging ability, makes spray head service life
And maintenance period substantially extends；Filtered secondary cooling water enters nozzle and forms high-speed rotational after rotating fins water conservancy diversion, from nozzle
Spray orifice spray after form umbrella shape water curtain and be sprayed on slab, enhance the cooling effect to continuous casting billet, guarantee normal production；It utilizes
Production maintenance gap can will carry out rust deposite cleaning after present invention disassembly, recycling can be installed after the completion of cleaning again, thus greatly
Width promotes the service life of sufficient roller spray head, save the cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of nozzle；
Fig. 2 is the main view of nozzle；
Fig. 3 is the bottom view of nozzle；
Fig. 4 is frustum of a cone top view；
Fig. 5 is frustum of a cone tubular filter structure schematic diagram；
Fig. 6 is integral installation distribution structure schematic diagram of the present invention；
In the figure, it is marked as frustum of a cone tubular strainer 1, cylinder 2, frustum of a cone 3, rectangular stage body 4, cavity 5, spray orifice 6, into
Water stitches 7, cylinder external screw thread 8, cylinder internal screw thread 9, rotating fins 10, strainer external screw thread 11, through-hole 12.
Specific embodiment
FIG. 1 to FIG. 4 and Fig. 6 show that continuous casting crystallizer foot-roller of the present invention filters spray head, including nozzle and frustum of a cone tubular
Strainer 1；Nozzle is made of cylinder 2, inverted frustum of a cone 3 and rectangular stage body 4；2 upper outside wall of cylinder is provided with and continuous casting knot
The cylinder external screw thread 8 that brilliant device lower end water pipe internal screw thread matches, 2 upper inside wall of cylinder are provided with cylinder internal screw thread 9, and inner wall lower is solid
Surely there are rotating fins 10；Rectangular stage body 4 is square stage body, and quadrangle is chamfering structure；The larger bottom surface of frustum of a cone 3 is straight
Diameter is identical as the diameter of cylinder 2, and the diameter of smaller bottom surface is identical as the catercorner length of rectangular stage body 4；Frustum of a cone 3 it is larger
Bottom surface is fixedly connected with the bottom of cylinder 2, and the larger bottom surface of frustum of a cone 3 is overlapped with the bottom surface of cylinder 2 after connection；Frustum of a cone
3 smaller bottom surface is fixedly connected with the upper surface of rectangular stage body 4, the smaller bottom surface of frustum of a cone 3 and rectangular stage body 4 after connection
Upper surface is overlapped；The inside of frustum of a cone 3 is provided with inverted conical shape cavity 5 up and down, is provided with up and down on rectangular stage body 4
Cylindrical spray orifice 6, the axis of spray orifice 6 passes through the central point of rectangular 4 upper and lower surfaces of stage body；Inside spray orifice 6 and frustum of a cone 3
The vertex of a cone of inverted conical shape cavity 5 is connected to, and the cone bottom of inverted conical shape cavity 5 is connected to 2 inner cavity of cylinder；After nozzle assembles, circle
Cylinder 2 axis, frustum of a cone 3 axis, the axis of 3 inside inverted conical shape cavity 5 of frustum of a cone and the spray orifice 6 of rectangular stage body 4
Axis be overlapped.
Fig. 5 and Fig. 6 show, the lateral wall that frustum of a cone tubular strainer 1 bores bottom be provided with in the cylinder of 2 upper inside wall of cylinder
The strainer external screw thread 11 that screw thread 9 matches, frustum of a cone tubular strainer 1 pass through strainer external screw thread 11 and 2 upper inside wall of cylinder
Cylinder internal screw thread 9 is threadedly coupled；The upper end face closure of frustum of a cone tubular strainer 1, closed upper surface offer multiple diameters
Less than the through-hole 12 of 6 diameter of spray orifice of the rectangular rotary table of nozzle；The side wall of frustum of a cone tubular strainer 1 be provided with multiple perforation wall thickness and
The identical watering slot 7 of size, multiple watering slots 7 are located on multiple cross sections of frustum of a cone tubular strainer 1, the same cross
It cuts on disc and averagely opens up 4 watering slots 7, the height of watering slot 7 is less than the 1/2 of rectangular 6 diameter of rotary table spray orifice of nozzle.
The course of work of the invention are as follows:
Frustum of a cone tubular strainer 1 is passed through on the strainer external screw thread 11 of cone downside wall and 2 inner wall of cylinder of nozzle first
The cylinder internal screw thread 9 in portion is threadedly coupled, to form the spray head of an included strainer；Then the cylinder of nozzle 2 is passed through into cylinder 2
Top cylinder external screw thread 8 is threadedly coupled with continuous cast mold lower end water pipe internal screw thread, at this point, frustum of a cone tubular strainer 1 is in
Inside the water pipe of continuous cast mold lower end；In production process, pass through entrainment of the secondary cooling water of rust deposite through continuous cast mold lower end water pipe
When the through-hole 12 and side wall watering slot 7 of 1 upper surface of frustum of a cone tubular strainer are sent to spray head position, the blocky rust deposite in water is cut
Head taper barrel strainer 1 intercepts, due to the diameter and side wall watering slot 7 of the through-hole 12 of 1 upper surface of frustum of a cone tubular strainer
Height be respectively less than nozzle spray orifice 6 diameter, so in filtered secondary cooling water remaining rust deposite will not plug nozzle spray orifice
6, secondary cooling water enters nozzle and forms high-speed rotational after 10 water conservancy diversion of rotating fins, forms umbrella shape water after spraying from the spray orifice 6 of nozzle
Curtain, which is sprayed on slab, completes cooling.When producing gap maintenance, the present invention can be removed progress from continuous cast mold lower end water pipe
Rust deposite cleaning, dress can be returned by, which cleaning out, reuses, thus substantially extend spray head service life and use the time, save at
This, guarantees normal production.
Frustum of a cone tubular strainer 1 of the present invention makes nozzle water inlet area reach the 2 times or more of former water inlet area, effectively intakes
Area reaches 1.3 times or so of former water inlet area, further improves spray head anti-clogging ability, makes spray head service life and maintenance
Period substantially extends.
Claims (2)
1. continuous casting crystallizer foot-roller filters spray head, it is characterised in that: it includes nozzle and frustum of a cone tubular strainer (1)；It is described
Nozzle is made of cylinder (2), inverted frustum of a cone (3) and rectangular stage body (4), the larger bottom surface of frustum of a cone (3) and cylinder
(2) bottom is fixedly connected, and smaller bottom surface is fixedly connected with the upper surface of rectangular stage body (4), and the inside of frustum of a cone (3) is provided with
Cavity (5) up and down is provided with spray orifice (6) up and down, the internal cavity (5) of frustum of a cone (3) on rectangular stage body (4)
It is connected to respectively with the inner cavity of spray orifice (6) and cylinder (2)；The cone bottom of the frustum of a cone tubular strainer (1) and the top of cylinder (2)
It is fixedly connected, side wall is provided with the watering slot (7) of multiple perforation wall thickness；The rectangular stage body (4) is the pros that quadrangle is chamfering
Shape stage body；The larger basal diameter of the frustum of a cone (3) is identical as the diameter of cylinder (2), the diameter of smaller bottom surface with it is rectangular
The catercorner length of stage body (4) is identical；The internal cavity (5) of frustum of a cone (3) is inverted conical shape, the spray on rectangular stage body (4)
Hole (6) is the cylindrical hole by rectangular stage body (4) upper and lower surfaces center, spray orifice (6) and frustum of a cone (3) internal rounding
The vertex of a cone of conical cavity (5) is connected to；After nozzle assembles, axis, the inverted conical shape of the axis of cylinder (2), frustum of a cone (3)
The axis of cavity (5) and the axis of spray orifice (6) are overlapped；The cone bottom diameter of the frustum of a cone tubular strainer (1) and cylinder (2)
Internal diameter matches, and the multiple watering slot (7) size is identical, puts down on the same transversal disc of frustum of a cone tubular strainer (1)
Open up 4 watering slots (7).
2. continuous casting crystallizer foot-roller as described in claim 1 filters spray head, it is characterised in that: cylinder (2) upper outside
Wall is provided with the cylinder external screw thread (8) to match with continuous cast mold lower end water pipe internal screw thread, and cylinder (2) upper inside wall is provided with cylinder
Internal screw thread (9), inner wall lower are fixed with rotating fins (10)；The lateral wall at frustum of a cone tubular strainer (1) cone bottom is provided with
The strainer external screw thread (11) to match with the cylinder internal screw thread (9) of cylinder (2) upper inside wall, frustum of a cone tubular strainer (1)
Upper end face closure, closed upper surface offer the through-hole (12) that multiple diameters are less than spray orifice (6) diameter, side wall watering slot (7)
Height be less than spray orifice (6) diameter 1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129115.4A CN106862511B (en) | 2017-03-06 | 2017-03-06 | Continuous casting crystallizer foot-roller filters spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129115.4A CN106862511B (en) | 2017-03-06 | 2017-03-06 | Continuous casting crystallizer foot-roller filters spray head |
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| Publication Number | Publication Date |
|---|---|
| CN106862511A CN106862511A (en) | 2017-06-20 |
| CN106862511B true CN106862511B (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114383918B (en) * | 2022-01-11 | 2023-06-23 | 长安大学 | ENM aerosol diffusion drying system |
| CN116493559A (en) * | 2023-03-22 | 2023-07-28 | 盐城东皇铸造有限公司 | Nozzle for continuous casting |
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| US6036116A (en) * | 1998-04-16 | 2000-03-14 | Coltec Industries Inc | Fluid atomizing fan spray nozzle |
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| KR20120033070A (en) * | 2010-09-29 | 2012-04-06 | 현대제철 주식회사 | A foot spray apparatus of a continuous casting machine |
| CN102430731A (en) * | 2011-09-29 | 2012-05-02 | 营口中通控制设备制造有限公司 | Dual-swirl tangential outer mixed type water atomizing nozzle |
| CN104520012A (en) * | 2012-08-15 | 2015-04-15 | Sms康卡斯特股份公司 | Spray nozzle device, in particular for spraying a cast strand |
| CN205085362U (en) * | 2015-11-03 | 2016-03-16 | 攀钢集团攀枝花钢钒有限公司 | Sufficient roller district secondary cooling water spray set of continuous casting crystallizer |
| KR20160065650A (en) * | 2014-12-01 | 2016-06-09 | 주식회사 포스코 | Nozzle and Flushing Method for Cooling medium Pipe |
| CN206519554U (en) * | 2017-03-06 | 2017-09-26 | 河钢股份有限公司邯郸分公司 | Continuous casting crystallizer foot-roller filters shower nozzle |
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2017
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| SU933211A1 (en) * | 1980-07-09 | 1982-06-07 | Всесоюзный ордена Ленина научно-исследовательский и проектно-конструкторский институт металлургического машиностроения | Secondary cooling zone apparatus |
| US6036116A (en) * | 1998-04-16 | 2000-03-14 | Coltec Industries Inc | Fluid atomizing fan spray nozzle |
| CN201524780U (en) * | 2009-11-20 | 2010-07-14 | 武汉钢铁(集团)公司 | Y-shaped filtering device for novel conticaster secondary cooling system |
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| CN106862511A (en) | 2017-06-20 |
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