CN203292447U

CN203292447U - Secondary cooling spray device for continuous casting of square blank

Info

Publication number: CN203292447U
Application number: CN2013202514462U
Authority: CN
Inventors: 黄书友; 孙铁汉; 穆学锋
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2013-05-10
Filing date: 2013-05-10
Publication date: 2013-11-20
Anticipated expiration: 2023-05-10

Abstract

The utility model discloses a secondary cooling spray device for the continuous casting of a square blank, and the device comprises an inner arc collector pipe, an outer arc collector pipe, spray nozzle connecting pipes and spray nozzles; the inner arc collector pipe and the outer arc collector pipe are fixedly arranged on a bracket; water inlets and water outlets are arranged on the inner arc collector pipe and an outer arc collector pipe; the spray nozzle connecting pipes which mutually form right angles are arranged at the water outlets of the inner arc collector pipe and the outer arc collector pipe, so that all the spray nozzle connector pipes are symmetrically distributed around a casting blank; the collector pipes and the spray nozzle collecting pipes are connected by plugging; the connector pipes are connected with the spray nozzles. According to the secondary cooling spray device which has a simple structure, is easily detached, is simple to maintain, can be quickly changed and can save a lot of overhaul time, the operation rate of a continuous casting machine is improved.

Description

The two cold water spray devices that billet continuous casting is used

Technical field

The utility model relates to the conticaster system, particularly the two cold water spray devices used of a kind of billet continuous casting.

Background technology

Continuous casting production is the final step of steel making working procedure, is also a most important step.Square billet two cold water spray devices are one of emphasis equipment of conticaster, are the keys that guarantees continuous casting billet appearance and size and obtain good internal soundness.In two cold houses, just gone out the inner ot-yet-hardened of high temperature strand of crystallizer, in two cold-zones, need to continue to carry out cooling to strand, cooling by collector pipe to strand in two cold houses, tube connector, nozzles etc. spray to casting billet surface with water, heat is taken away, reached the purpose of cooling strand.

Environment very severe in two cold houses, the vibration that has high temperature heat radiation, heavily loaded stress alternation to cause, the erosion of high moist steam, water, iron scale etc., and space is relatively airtight, narrow and small, and the maintenance of equipment, change operating space limited.Two cold water spray devices are because heat radiation is out of shape, and iron scale is burnt, stopped up, the reasons such as bleed-out burn and normal consumption, and its frequency of safeguarding, dismantle, changing is much higher than other equipment of conticaster.Therefore the dismounting of two cold water spray devices, replacing be trouble, time-consuming bothersome very, so design a kind of billet continuous casting spray equipment simple in structure, quick detachable, fast changeable, just seems particularly important.

The structural representation of existing billet continuous casting two cold water spray devices as shown in Figure 1, 2, mostly adopt collecting ring that cooling water is dispensed to collector pipe, 4 weeks of strand 6 are adopted 4 collector pipes, collector pipe is arranged in inner arc side, outer arc side, the left and right sides of conticaster, collector pipe adopts screw thread to be connected with nozzle connecting water pipe 3, perhaps is fabricated integrally in together; The nozzle connecting water pipe adopts nozzle 4 that secondary cooling water is sprayed with cooling strand again.The shortcoming that existing equipment exists:

1) complex structure, two cold each district all need collecting ring, retainer ring and 4 collector pipes, on each root collector pipe, many arms are arranged, and it forms complicated structure;

2) collector pipe is monoblock type, many nozzle connecting water pipes 3 are arranged on collector pipe, to be welded to connect between nozzle connecting water pipe 3 and collector pipe, in case nozzle connecting water pipe 3 has larger distortion or have nozzle connecting water pipe 3 to damage, just whole collector pipe all need to be disassembled and safeguard or change maintainability and economical all bad;

3) complicated due to version, collector pipe is monoblock type, and the collector pipe of in a section a certain or certain collector pipe damages and just production caused great impact, even needs to stop watering failure flow, recover time that failure flow need to grow and very difficult.

The utility model content

The two cold water spray devices that provide a kind of billet continuous casting simple in structure, quick detachable, fast changeable to use for the technical problem that exists in above-mentioned prior art are provided technical problem to be solved in the utility model.

The technical scheme that the utility model adopts is: the two cold water spray devices that billet continuous casting is used, it is characterized in that it comprises inner arc collector pipe, outer arc collector pipe, nozzle connecting pipe, nozzle, inner arc collector pipe, outer arc collector pipe are fixed on fixed mount, be equipped with the water inlet delivery port on inside and outside arc collector pipe, water outlet at inside and outside arc collector pipe is provided with mutual rectangular nozzle connecting pipe, each nozzle connecting pipe is symmetrically distributed in around strand, and described nozzle connecting pipe is connected with nozzle.

By technique scheme, described nozzle connecting pipe is connected plug-in to be connected with the inner arc collector pipe with the outer arc collector pipe.

By technique scheme, described inner arc collector pipe and outer arc collector pipe are respectively 1, and correspondence is arranged on the cornerwise both sides of strand.

By technique scheme, described nozzle connecting pipe and inner arc collector pipe and outer arc collector pipe seal arrangement, and by bearing pin, fix.

, by technique scheme, in the junction of inside and outside arc collector pipe and nozzle connecting pipe, be provided with protective cover.

By technique scheme, described protective cover is U-shaped.

By technique scheme, described inside and outside arc collector pipe is square collector pipe, at the adjacent surface of inside and outside arc collector pipe, sets out respectively the mouth of a river.

The obtained beneficial effect of the utility model is:

1, the utility model is fixed without collecting ring with respect to prior art, arranges on the diagonal of strand that just 2 collector pipes are inner arc collector pipe, outer arc collector pipe, so not only simplify the structure, and handled easily, and reduced equipment, saving cost;

2, adopt between nozzle connecting pipe and inside and outside arc collector pipe that to flexibly connect be that plug-in is connected, connect with respect to Integral rigid of the prior art, the utility model can be according to the fact damaged situation, carry out local replacing, dismounting, realize quick-replaceable and change conveniently, can save a large amount of repair times, further improve the operating rate of conticaster.；

3, the junction of nozzle connecting pipe and inside and outside arc collector pipe arranges protective cover, prevents from production process occurring that bleed-out will both be welded, and causes and can't dismantle.

Description of drawings

Fig. 1 is the structural representation of two cold water spray devices of the prior art.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is structural representation of the present utility model.

Fig. 4 is A-A cutaway view in Fig. 3.

Fig. 5 is the enlarged drawing of the connected mode of nozzle connecting pipe in the utility model.

Fig. 6 is the top view of Fig. 5.

Fig. 7 is that the B of Fig. 5 is to view.

Wherein: 1, inner arc collector pipe, 2, the outer arc collector pipe, 3, nozzle connecting pipe, 4, nozzle, 5, water inlet, 6, strand, 7, fixed mount, 8, water inlet pipe, 9, sealing ring, 10, bearing pin, 11, protective cover, 12, arm.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

as Fig. 3, shown in 4, the two cold water spray devices that the present embodiment provides a kind of billet continuous casting to use, it comprises a square inner arc collector pipe 1, a square outer arc collector pipe 2, nozzle connecting pipe 3, nozzle 4, inner arc collector pipe 1, outer arc collector pipe 2 is arranged on the both sides extended line at diagonal angle of strand, inner arc collector pipe 1, outer arc collector pipe 2 is fixed on fixed mount 7, interior, be equipped with water inlet 5 and delivery port on the outer arc collector pipe, water inlet 5 connects water inlet pipe 8, in, outer arc collector pipe adjacent surface all sets out the mouth of a river, interior, the water outlet of outer arc collector pipe is provided with mutual rectangular nozzle connecting pipe 3, make each nozzle connecting pipe 3 be symmetrically distributed in strand 6 surroundings, described nozzle connecting pipe 3 is connected with nozzle 4.Inner arc collector pipe 1 and outer arc collector pipe 2 distribute two cold water spray water, and nozzle connecting pipe 3 is fitted on each nozzle with two cold water spray moisture, and nozzle 4 phase secondary cooling waters are sprayed onto the surface of strand, play the effect of even cooling strand.

As shown in Fig. 5,6,7, described nozzle connecting pipe 3 is connected with the outer arc collector pipe with inner arc collector pipe 1 and is adopted plug-in to be connected, adopt sealing ring 9 to be tightly connected between nozzle connecting pipe and inside and outside arc collector pipe, fixing by bearing pin 10, prevent that nozzle connecting pipe from vibrations occurring produce deflection under the effect of external force, cause nozzle to misalign with respect to strand 6.

In the present embodiment, in the junction of inside and outside arc collector pipe and nozzle connecting pipe, be provided with U-shaped protective cover 11, prevent that bleed-out will both be welded, cause dismantling.

The utility model is simple in structure, easy care, when breaking down, can realize quick-replaceable, is applicable to simultaneously little rectangular bloom and round billet continuous casting machine.

Claims

1. the two cold water spray devices used of billet continuous casting, it is characterized in that it comprises inner arc collector pipe, outer arc collector pipe, nozzle connecting pipe, nozzle, inner arc collector pipe, outer arc collector pipe are fixed on fixed mount, be equipped with water inlet and delivery port on inside and outside arc collector pipe, water outlet at inside and outside arc collector pipe is provided with mutual rectangular nozzle connecting pipe, make each nozzle connecting pipe be symmetrically distributed in the strand surrounding, described nozzle connecting pipe is connected with nozzle.

2. the two cold water spray devices used of billet continuous casting according to claim 1, is characterized in that described nozzle connecting pipe is connected plug-in to be connected with the inner arc collector pipe with the outer arc collector pipe.

3. the two cold water spray devices used of billet continuous casting according to claim 1 and 2, is characterized in that described inner arc collector pipe and outer arc collector pipe are respectively 1, and correspondence is arranged on the cornerwise both sides of strand.

4. the two cold water spray devices used of billet continuous casting according to claim 3, is characterized in that described nozzle connecting pipe and inner arc collector pipe and outer arc collector pipe seal arrangement, and by bearing pin, fix.

5. the two cold water spray devices used of according to claim 2 or 4 described billet continuous castings, is characterized in that being provided with protective cover in the junction of inside and outside arc collector pipe and nozzle connecting pipe.

6. the two cold water spray devices used of billet continuous casting according to claim 5, is characterized in that described protective cover is U-shaped.

7. the two cold water spray devices used of billet continuous casting according to claim 3, is characterized in that described inside and outside arc collector pipe is square collector pipe, at the adjacent surface of inside and outside arc collector pipe, sets out respectively the mouth of a river.