CN202894256U - A two-cooling zone slab spray frame allowing spray width to be adjusted - Google Patents
A two-cooling zone slab spray frame allowing spray width to be adjusted Download PDFInfo
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- CN202894256U CN202894256U CN 201220043387 CN201220043387U CN202894256U CN 202894256 U CN202894256 U CN 202894256U CN 201220043387 CN201220043387 CN 201220043387 CN 201220043387 U CN201220043387 U CN 201220043387U CN 202894256 U CN202894256 U CN 202894256U
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Abstract
The utility model provides a two-cooling zone slab spray frame allowing spray width to be adjusted and belongs to the field of continuous casting equipment. The two-cooling zone slab spray frame is used for uniform spray cooling of slabs. The two-cooling zone slab spray frame comprises support arms, chain block devices, two-cooling zone water distribution pipes, nozzle connection pipes and nozzles. The plurality of support arms are installed on a fan-shaped section fixedly in an inclined manner. One chain block device is fixedly installed at the upper end of each inclined support arm and is connected with one two-cooling zone water distribution pipe through one connecting chain. One two-cooling zone water distribution pipe is installed on each support arm and is in sliding fit with the support arm. The upper end of each nozzle connecting pipe is connected with one two-cooling zone water distribution pipe. The lower end of each nozzle connecting pipe is provided with one nozzle. In practical production, the two-cooling zone slab spray frame enables the two-cooling zone spray width to be adjusted, enables the cooling of two cooling zones in the width direction to be more uniform, is characterized by simple in structure, low investment, high applicability and convenience in maintenance, and has the advantages of improving surface quality of the slabs, reducing production cost, improving metal yield and reducing water resource consumption.
Description
Technical field
The utility model relates to a kind of sheet billet continuous casting fan-shaped section two cold water spray framves, belongs to the continuous casting equipment field.
Background technology
Along with the lifting of sheet material ratio and the expansion of sheet material variety range in steel production, the quality problems of slab more and more are subject to people and pay attention to.Particularly containing crack sensitivity steel grades such as Nb, V, Ti, due in cooling procedure at 700 ~ 950 ℃, the plasticity that makes continuous casting billet of separating out of its carbonitride descends, this temperature range also is known as between the 3rd brittle zone.Usually people adopt " weak cold " strategy, can significantly alleviate the casting billet surface transverse fissure, but but fail thoroughly to solve for transverse corner crack.This is mainly that with respect to casting billet surface, its temperature is low because bight is Two-Dimensional Heat.The very important reason of another one be exactly the design of traditional slab caster spraying width be mainly according to maximum strand width, and the product width of actual production is various, has caused spraying width to be greater than the phenomenon of strand width.The strong steel grade for some crack sensitivities, inappropriate two cold water spray width, cause corner crack more serious, and the cleaning casting billet surface not only needs extra-pay, also reduces recovery rate of iron; If do not cleared up, will certainly cause the board quality defect, increase cost burden.
In order to improve slab quality, to save the energy, people have developed can along the width of plate slab direction two cold-zone water, the gas blowout shower device of level switching.But this spray mode is because nozzle location maintains static, and the inner arc of a cooling zone or outer arc are controlled with regard to 3 instrument circuits of needs, and pipe-line system is huge like this, make original very compact plant equipment become more complicated.In fact, usually because pipeline can't be arranged, can only be designed to two instrument circuits.And width of plate slab is a lot of individual often, therefore the width switching mode value of this water and air injection can only adapt to width of plate slab situation with low uncertainty.In addition, it is this that to have grade layout feature of switching mode nozzle to make respectively to arrange between nozzle be interlaced arrangement, when if the spraying width of odd number row nozzle is consistent with width of plate slab, the spraying width of even rows nozzle be not larger than width of plate slab be exactly less than width of plate slab, spraying width just can not switch in full accordly with width of plate slab like this.
A kind of new spray mode is to adopt the stepless changing method of width, and spraying width is step-less adjustment from being up to minimum, can adapt to the slab of multiple width.Although this device has can improve the slab corner crack, improve slab quality, save the energy, simplify the advantages such as instrument system and pipeline, but the more complicated of its frame for movement own, one-time investment is higher, and under the fumy environment of high temperature, move, working service to equipment requires high, because its comprehensive " cost performance " is not high, therefore fail to be widely used.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, cooling more evenly, invest the slab that can regulate spraying width little, that applicability is strong, easy to maintenance two cold water spray framves.
The technical scheme solved the problems of the technologies described above is:
A kind of slab two cold water spray framves that can regulate spraying width, it is by support arm, jack device, secondary cooling water pipe arrangement, nozzle connecting pipe, nozzle forms, support arm is a plurality of, support arm tilts to be fixedly mounted on fan-shaped section respectively, the jack device is fixedly mounted on the upper end of the support arm of each inclination, the jack device is connected with the secondary cooling water pipe arrangement by connection chain, the secondary cooling water pipe arrangement is positioned on support arm, with support arm for being slidably matched, the upper end of nozzle connecting pipe is connected with the secondary cooling water pipe arrangement, and the lower end of nozzle connecting pipe is equipped with nozzle.
The above-mentioned slab two cold water spray framves that can regulate spraying width, inner arc side and the outer arc side of a described fan-shaped section are respectively equipped with
4support arm.
The above-mentioned slab two cold water spray framves that can regulate spraying width, the length of described support arm is 700-900mm
.
Usefulness of the present utility model is:
(1) can regulate the position of two cold sparge pipes by the jack device according to the width value of plan casting slab, two movements of cold sparge pipe on support arm, changed the position of nozzle indirectly, reaches the purpose of regulating spraying width.
(2) with conventional panels billet continuous casting machine spraying rack, compare, this spraying rack can change spraying width according to the width value of actual continuous casting billet, can make slab Temperature Distribution on whole width reasonable, chink occurrence frequency containing steel grades such as Nb, V reduces, surface quality of continuously cast slab greatly takes on a new look, optimize the consumption of water, gas, reduced the cleaning work of steel slab surface before rolling, improved recovery rate of iron.
(3) position of this spraying rack by changing fan-shaped section two cold sparge pipes and then can change row's nozzle location, all need to control and compare separately with each nozzle of stepless switching width adjusting system, there is the plant equipment simple structure, invest the advantages such as little, that applicability is strong, plant maintenance is convenient.
The accompanying drawing explanation
Fig. 1 is structure of the present utility model and uses view;
Fig. 2 is the another kind of state diagram of using of the present utility model.
In figure, mark is as follows: support arm 1, jack device 2, connection chain 3, secondary cooling water pipe arrangement 4, nozzle connecting pipe 5, nozzle 6, continuous casting billet 7.
The specific embodiment
In figure, show, the utility model is by support arm 1, jack device 2, connection chain 3, secondary cooling water pipe arrangement 4, nozzle connecting pipe 5, and nozzle 6 forms.
The upper end of jack device 2 each support arm 1 of fixed installation, jack device 2 is connected with secondary cooling water pipe arrangement 4 by connection chain 3, and the upper end of nozzle connecting pipe 5 is connected with secondary cooling water pipe arrangement 4, and the lower end of nozzle connecting pipe 5 is equipped with nozzle 6.
Secondary cooling water pipe arrangement 4 is positioned on support arm 1, and with support arm 1, for being slidably matched, secondary cooling water pipe arrangement 4 can move up and down along support arm 1 under the pulling of jack device 2, thereby changes the position of nozzle 6, reaches the purpose of regulating spraying width.
The utility model can be regulated two cold water spray width in actual production, can make cooling more even on two cold broad ways, has advantages of the Surface Quality of Steel Billet of raising, reduces production costs, improves recovery rate of iron, reduces water resources consumption.
Concrete implementation step of the present utility model is as follows:
(1) according to concrete conticaster, the continuous casting billet width of producing of conticaster is divided into to several range sections.The slab caster that certain factory's strand width range is 900 ~ 1650mm of take is example, specifically can be divided into 900 ~ 1000mm, 1050 ~ 1150mm, 1200 ~ 1300mm, 1350 ~ 1450mm, five subranges of 1500 ~ 1650mm.
(2) calculate respectively the nozzle particular location of the strand production that can meet above-mentioned five width ranges by definite Nozzle Parameter, comprise setting height(from bottom) and injector spacing, indirect calculation goes out five correspondence positions of two cold sparge pipes 4, i.e. five gears.
(3) as shown in the figure, support arm 1 and horizontal direction form an angle, and be fixed on fan-shaped section, each fan-shaped section has respectively 8 support arms, inside and outside arc respectively has 4, length is 700-900mm, and its Main Function is supported and fixing the two cold sparge pipes 4 in different gears two cold sparge pipes 4.
(4) jack device 2 is fixed on support arm 1, and connection chain 3 is connected with two cold sparge pipes 4, and by the pulling force effect of jack device 2, two cold sparge pipes 4 can be along the oblique movement of support arm 1.
(5) determine the position of two cold sparge pipe 4 correspondences according to the strand width value of actual production, by jack device 2, regulate two cold sparge pipe positions, reach the purpose of regulating spraying width, meet the continuous casting billet production of different section.
Claims (3)
1. the slab two cold water spray framves that can regulate spraying width, it is characterized in that: it is by support arm (1), jack device (2), secondary cooling water pipe arrangement (4), nozzle connecting pipe (5), nozzle (6) forms, support arm (1) is a plurality of, support arm (1) tilts to be fixedly mounted on fan-shaped section respectively, jack device (2) is fixedly mounted on the upper end of the support arm (1) of each inclination, jack device (2) is connected with secondary cooling water pipe arrangement (4) by connection chain (3), secondary cooling water pipe arrangement (4) is positioned on support arm (1), with support arm (1) for being slidably matched, the upper end of nozzle connecting pipe (5) is connected with secondary cooling water pipe arrangement (4), the lower end of nozzle connecting pipe (5) is equipped with nozzle (6).
2. the slab two cold water spray framves that can regulate spraying width according to claim 1, it is characterized in that: the inner arc side of a described fan-shaped section and outer arc side are respectively equipped with 4 support arms (1).
3. the slab two cold water spray framves that can regulate spraying width according to claim 2, it is characterized in that: the length of described support arm is 700-900mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220043387 CN202894256U (en) | 2012-02-10 | 2012-02-10 | A two-cooling zone slab spray frame allowing spray width to be adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220043387 CN202894256U (en) | 2012-02-10 | 2012-02-10 | A two-cooling zone slab spray frame allowing spray width to be adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894256U true CN202894256U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220043387 Expired - Fee Related CN202894256U (en) | 2012-02-10 | 2012-02-10 | A two-cooling zone slab spray frame allowing spray width to be adjusted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607609A (en) * | 2015-03-05 | 2015-05-13 | 中冶赛迪工程技术股份有限公司 | Secondary cooling nozzle arranging method for improving surface plasticity of casting blank and secondary cooling control method |
-
2012
- 2012-02-10 CN CN 201220043387 patent/CN202894256U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607609A (en) * | 2015-03-05 | 2015-05-13 | 中冶赛迪工程技术股份有限公司 | Secondary cooling nozzle arranging method for improving surface plasticity of casting blank and secondary cooling control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20190210 |