CN206169218U - It splits spouting of defect and sweeps device to reduce continuous casting billet limit - Google Patents
It splits spouting of defect and sweeps device to reduce continuous casting billet limit Download PDFInfo
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- CN206169218U CN206169218U CN201621204036.2U CN201621204036U CN206169218U CN 206169218 U CN206169218 U CN 206169218U CN 201621204036 U CN201621204036 U CN 201621204036U CN 206169218 U CN206169218 U CN 206169218U
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- continuous casting
- casting billet
- defect
- air jet
- row
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Abstract
The utility model relates to an it splits spouting of defect and sweeps device to reduce continuous casting billet limit, include a plurality of air jet and the compressed air pipe who is connected with air jet, a plurality of air jet symmetries are installed on the two cold chamber bases of conticaster of continuous casting billet width direction both sides, and the air jet of every side divide into upper and lower 2 rows, and a plurality of air jet central lines of the row of going up are parallel to each other, and a plurality of air jet central lines of lower row are parallel to each other. The utility model discloses utilize air jet spun high pressure compressed air to realize going up edgewise effectively the dispeing of the water of opening a way that flows down of bight of continuous casting billet thickness direction to the fan -shaped section of conticaster, reduce the continuous casting billet corner cooling rate of portion to it splits the defect on the limit of aligning in -process effectively to reduce the continuous casting billet.
Description
Technical field
This utility model is related to a kind of blasting apparatus, more particularly to the blasting apparatus of defect are split on a kind of reduction continuous casting billet side.
Background technology
Now with a large amount of exploitations containing niobium Hi-Stren steel and production, by adding microalloy element niobium in steel
Intensity and toughness that precipitation strength controls to strengthen steel with phase transformation, but as niobium belongs to the stronger element of crack sensitivity,
In continuous casting billet cooling procedure, NbN, the Nb generated in steel（CN）Agglomeration can be separated out between austenite crystal, especially work as strand
Temperature is too low when being in the 3rd temperature brittle zone, and precipitate particle size and unit area amount of precipitation drastically increase, now continuous casting
Base stress can cause grain deformation limit stress more than tensile strength, and deformation is concentrated mainly on grain boundaries, produces grain boundary fracture, makes
The mechanical behavior under high temperature of steel is reduced, and produces edge cracks defect.CSP conticasters are vertical bending type casting machine at present, and fan-shaped section is vertical
Formula, and framework design of cooling water is open circuit water cooling, after open circuit water is directly discharged from sector-segment frames, is arrived along continuous casting billet stream
Two cold houses bottom, form cooling twice, particularly continuous casting billet corner in the middle of two dimension cooling to strand, and intensity of cooling is more
It is prominent, the intensity of cooling that manager's opinion is calculated is changed, causes slab cooling curve to change, straightening section strand widthwise edge
Corner is supercool, temperature is easily caused in aligning in the 3rd brittle temperature range, serious continuous casting billet side is formed and is split quality
Problem, causes follow-up rolling to produce steel edge portion crack defect.
Defect is split to reduce continuous casting billet side, need to reduce the rate of cooling of continuous casting billet corner；For this purpose, Some Enterprises pass through
Improve pulling rate to weaken strand edge rate of cooling, but high pulling rate is susceptible to bleed-out, control difficulty increases；Meanwhile, high pulling rate
Necessarily cause rhythm of production to be accelerated, be unfavorable for organization of production arrangement；In addition, also there is Some Enterprises to install water seal in fan-shaped section bottom
Device, cuts off the water guttered down along strand by spraying water；But spray nozzle is easily blocked and live hydraulic pressure is unstable, nothing
Method ensures the stable water spray of nozzle, can strengthen sometimes strand corner cooling effect on the contrary, run counter to desire.
Utility model content
Technical problem to be solved in the utility model is to provide the blasting apparatus that defect is split on a kind of reduction continuous casting billet side, leads to
Cross air nozzle and disperse the open circuit water that continuous casting billet corner is flowed down, reduce the rate of cooling of continuous casting billet corner, so as to the company of reduction
Defect is split on strand side, solves the problems, such as background technology.
Technical solution adopted in the utility model is：
It is a kind of to reduce the blasting apparatus that defect is split on continuous casting billet side, including multiple air nozzles and the pressure being connected with air nozzle
Contracting air hose, multiple air nozzles are symmetrically arranged on the caster two cold room base of continuous casting billet width both sides, per side
Air nozzle is divided into upper and lower 2 row, and multiple air nozzle centrages of upper row are parallel to each other, multiple air nozzle centers of lower row
Line is parallel to each other.
Split the blasting apparatus of defect, upper and lower 2 emptying positioned at continuous casting billet homonymy in a kind of above-mentioned reduction continuous casting billet side
Vertical dimension between gas jets and two cold house's base fixing points is 30~40cm；The centrage of the air nozzle arranged on the side
It is vertical with the shared seamed edge of the continuous casting billet side side and continuous casting billet inner arcuate surface, the centrage of the air nozzle arranged under the side and company
The strand side side is vertical with the shared seamed edge on continuous casting billet outer arc surface；It is upper and lower 2 emptying gas jets centrage respectively with continuous casting
Base inner arcuate surface, outer arc surface are in 120-150 ° of angle；Spout the hanging down to the continuous casting billet side side of upper and lower 2 emptying gas jets
Straight distance is 3~10cm.
The blasting apparatus of defect are split on a kind of above-mentioned reduction continuous casting billet side, are provided with controlling switch on the compressed air hose
And flow meter.
The course of work of the present utility model is：In continuous casting billet production process, to being passed through compressed air in compressed air hose,
The open circuit water that thickness of strand direction is flowed down along corner on continuous casting machine fan-shaped segment can be effectively dispersed, continuous casting billet corner is reduced cold
But speed, so as to defect is split on side of the effective control continuous casting billet in straightening process；Pass through（Hole）Observation flow meter simultaneously utilizes control
On-off control compressed air require, realizes effectively dispersing for open-circuit water.
The beneficial effects of the utility model are：
This utility model is realized thick to continuous casting billet on continuous casting machine fan-shaped segment using the high pressure air that air nozzle sprays
Degree direction is effectively dispersed along the open circuit water that corner is flowed down, and reduces continuous casting billet corner rate of cooling, so as to the effective company of reduction
Split defect in side of the strand in straightening process.
Description of the drawings
Fig. 1 is this utility model scheme of installation；
Top views of the Fig. 2 for Fig. 1；
It is labeled as in figure：Air nozzle 1, compressed air hose 2, continuous casting billet 3, two cold house's bases 4, controlling switch 5, flow meter
6th, continuous casting machine fan-shaped segment 7.
Specific embodiment
Fig. 1 and Fig. 2 is this utility model one embodiment schematic diagram, is shown in figure, and this utility model is a kind of to reduce continuous casting
The blasting apparatus of defect are split on base side, including 4 air nozzles 1 and 4 compressed air hoses 2,4 for being connected with air nozzle 1 it is empty
Gas jets 1 are symmetrically arranged on the caster two cold room base 4 of the width both sides of continuous casting billet 3；Often the air nozzle 1 of side is
2 and go to upper and lower distribution；Vertical dimension between the fixing point of the air nozzle 1 of the side 2 and two cold house's bases 4 be 30~
40cm；The centrage of upper air nozzle 1 is hung down with the shared seamed edge of the inner arcuate surface of the side side and continuous casting billet 3 of continuous casting billet 3
Directly, the centrage of lower air nozzle 1 is vertical with the shared seamed edge on the outer arc surface of the side side and continuous casting billet 3 of continuous casting billet 3；
The centrage of upper and lower 2 air nozzles 1 inner arcuate surface respectively with continuous casting billet 3, outer arc surface are in 120-150 ° of angle；It is upper and lower
The vertical dimension of the spout of 2 air nozzles 1 to the side side of continuous casting billet 3 is 3~10cm；On every compressed air hose 2 respectively
Controlling switch is installed（5）And flow meter（6）.
The course of work of the present utility model is：In the production process of continuous casting billet 3, to being passed through compression in compressed air hose 2
Air, can effectively disperse the open circuit water that the thickness direction of continuous casting billet 3 on continuous casting machine fan-shaped segment 7 is flowed down along corner, reduce continuous casting
The corner rate of cooling of base 3, so as to defect is split on side of the effective control continuous casting billet 3 in straightening process；Through hole observes flow meter 6
And compressed air require is controlled using controlling switch 6, realize effectively dispersing for open-circuit water.
Claims (3)
- It is 1. a kind of to reduce the blasting apparatus that defect is split on continuous casting billet side, it is characterised in that：It includes multiple air nozzles（1）And with sky Gas jets（1）The compressed air hose of connection（2）, multiple air nozzles（1）It is symmetrically arranged on continuous casting billet（3）Width both sides Caster two cold room base（4）On, the air nozzle per side（1）It is divided into upper and lower 2 row, multiple air nozzles of upper row（1）In Heart line is parallel to each other, multiple air nozzles of lower row（1）Centrage be parallel to each other.
- 2. the blasting apparatus of defect are split on a kind of reduction continuous casting billet side as claimed in claim 1, it is characterised in that：It is described positioned at even Strand（3）The upper and lower 2 emptying gas jets of homonymy（1）With two cold house's bases（4）Vertical dimension between fixing point be 30~ 40cm；The air nozzle arranged on the side（1）Centrage and continuous casting billet（3）The side side and inner arcuate surface shared seamed edge hang down Directly, the air nozzle of lower row（1）Centrage and continuous casting billet（3）The side side it is vertical with the shared seamed edge on outer arc surface；Upper, Lower 2 emptying gas jets（1）Centrage respectively with continuous casting billet（3）Inner arcuate surface, outer arc surface be in 120-150 ° of angle；Upper, Lower 2 emptying gas jets（1）Spout to continuous casting billet（3）The vertical dimension of the side side is 3~10cm.
- 3. the blasting apparatus of defect are split on a kind of reduction continuous casting billet side as claimed in claim 1 or 2, it is characterised in that：The pressure Contracting air hose（2）On controlling switch is installed（5）And flow meter（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204036.2U CN206169218U (en) | 2016-11-08 | 2016-11-08 | It splits spouting of defect and sweeps device to reduce continuous casting billet limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204036.2U CN206169218U (en) | 2016-11-08 | 2016-11-08 | It splits spouting of defect and sweeps device to reduce continuous casting billet limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206169218U true CN206169218U (en) | 2017-05-17 |
Family
ID=58681582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621204036.2U Expired - Fee Related CN206169218U (en) | 2016-11-08 | 2016-11-08 | It splits spouting of defect and sweeps device to reduce continuous casting billet limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206169218U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598112A (en) * | 2017-10-30 | 2018-01-19 | 中冶赛迪工程技术股份有限公司 | A kind of secondary cooling water of continuous casting spraying width control device and method |
| CN109702162A (en) * | 2019-03-06 | 2019-05-03 | 山东钢铁股份有限公司 | A kind of conticaster and its casting billet surface clearing apparatus |
| CN111036869A (en) * | 2019-12-30 | 2020-04-21 | 西南铝业（集团）有限责任公司 | Casting process and casting system |
| CN112157237A (en) * | 2020-09-30 | 2021-01-01 | 联峰钢铁（张家港）有限公司 | System and method for controlling surface defects of medium-high carbon continuous casting billet |
-
2016
- 2016-11-08 CN CN201621204036.2U patent/CN206169218U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598112A (en) * | 2017-10-30 | 2018-01-19 | 中冶赛迪工程技术股份有限公司 | A kind of secondary cooling water of continuous casting spraying width control device and method |
| CN109702162A (en) * | 2019-03-06 | 2019-05-03 | 山东钢铁股份有限公司 | A kind of conticaster and its casting billet surface clearing apparatus |
| CN111036869A (en) * | 2019-12-30 | 2020-04-21 | 西南铝业（集团）有限责任公司 | Casting process and casting system |
| CN112157237A (en) * | 2020-09-30 | 2021-01-01 | 联峰钢铁（张家港）有限公司 | System and method for controlling surface defects of medium-high carbon continuous casting billet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20191108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |