CN102717042A - Modification method of fan-shaped section phi280 roller system of continuous casting machine - Google Patents
Modification method of fan-shaped section phi280 roller system of continuous casting machine Download PDFInfo
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- CN102717042A CN102717042A CN2012102246558A CN201210224655A CN102717042A CN 102717042 A CN102717042 A CN 102717042A CN 2012102246558 A CN2012102246558 A CN 2012102246558A CN 201210224655 A CN201210224655 A CN 201210224655A CN 102717042 A CN102717042 A CN 102717042A
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Abstract
A modification method of a fan-shaped section phi280 roller system of a continuous casting machine belongs to the technical field of continuous casting equipment. The method changes a trisection roller structure of the fan-shaped section phi280 roller system of the continuous casting machine into two sections of trisection roller structures, independently cooling the structures, removing water connection sleeves between the existing trisection roller bodies and adopting an external rotating connector to improve axial fixation of the rotating connector. The method has the advantages of resolving water leakage problem, is capable of ensuring technical performance of the fan-shaped section and device accuracy grade, reduces maintenance cost of the fan-shaped section and improves quality of a slab product.
Description
Technical field
The invention belongs to the continuous casting installation for casting technical field.Being particularly related to a kind of continuous casting machine fan-shaped segment φ 280 rollers is remodeling method.
Background technology
Domestic certain steel mill mainly produces cut deal, and is relatively stricter to the surface quality requirement of slab, the control of especially the casting machine fan-shaped section being leaked.The cooling water system of the 2# of this steel mill casting machine roller system be water from the water inlet distributor to the transmission side bearing block behind built-in swivel joint to the transmission side roll body; The transmission side roll body is connected with middle roll body through the water adapter sleeve; Middle roll body is connected with non-transmission side roll body through the water adapter sleeve; Form complete closed loop through swivel joint to bearing block Huis water collector pipe, the cooling water and the roll body of two side shaft holders are cooled to Yi Lushui.Because the defective of design; Fail to solve the stationary problem of metamerism roller and the low reliability that 0 type is sealed in heavily loaded bad working environments; Simultaneously the swivel joint plug-in unit does not adopt axial restraint, often occurs in use that swivel joint plug-in unit string is moving to cause swivel joint to leak.The middle water adapter sleeve of metamerism roller leaks and swivel joint leaks is the problem with regard to exist always after going into operation from the 2# machine, and influences each other, and the highest water leakage once reached 100 tons/hour.Because the inhomogeneities and the randomness of leaking; Cause billet surface defectives such as subcrack to occur, not only influence billet quality, cause the local inhomogeneous cooling of roll body owing to leak simultaneously; Cause the overheated of roll body and distortion; Influence the accuracy class of equipment, reduced the service life of fan-shaped section, increased the reparation and the maintenance cost of equipment.Through investigation, it is universal phenomenon that split type three metamerism rollers leak, like Shoudu Iron and Steel Co capital Tang, Puyang steel mill etc., the various tests of all setting about transforming.
In order to reach the requirement of company as early as possible; Research by inquiry; The monoblock type roller that carries out in August, 2009 is on the basis of reforming test; Use for reference the 1# casting machine and carry out specialty research with 3# casting machine roll system structure form, with the online roller of 2# casting machine 2-12 section be change into two save three fens rollers form, thoroughly solving roller is seepy question.
Summary of the invention
The object of the present invention is to provide a kind of continuous casting machine fan-shaped segment φ 280 rollers is remodeling method.Adopt three fens roll structures of two joints of multi-point support, improving roller is service life, and solving roller is seepy question.
For solving the problems of the technologies described above, its concrete steps are following:
1, roller system transforms: change three metamerism roller structures of continuous casting machine fan-shaped segment φ 280 rollers system into two joints three fens roll structures; Wherein, Roller length independently is provided with for the metamerism roller of 850mm; 2 rollers are long for the metamerism roller of 720mm changes two fens rollers of monoblock type into, and 2 rollers are long for two self-aligning bearings (original) in the middle of the metamerism roller of 720mm change 1 CARB bearing into, and both sides still are self-aligning bearing;
2, cooling water transformation: grow for the metamerism roller of 720mm changes independent cooling into for the metamerism roller of 850mm and 2 rollers the roller in the continuous casting machine fan-shaped segment φ 280 rollers systems is long, the cooling water and the roll body cooling water of two side shaft holders separated; Cancel the water adapter sleeve between three metamerism rollers (original) roll body simultaneously, utilize the axis methods for cooling, carry out the circulation of cooling water at the inner water service pipe that increases of roll body;
3, roller is that the body cooling adopts the external swivel joint to replace built-in swivel joint (original); The external swivel joint is communicated with water service pipe in roll body inside; Be communicated with fan-shaped section body cooling water pipeline (original) at the outside increase metal hose that passes through of roll body, increased the axial restraint of swivel joint.
The invention has the advantages that:
1, solves when leaking hidden danger, guaranteed fan-shaped section technical performance and equipment precision grade.
2, can reduce fan-shaped section and safeguard and rehabilitation cost, improve the slab product quality.
Description of drawings
Fig. 1 is that a kind of continuous casting machine fan-shaped segment φ 280 rollers are to transform the back sketch map.
Fig. 2 is the preceding sketch map of a kind of continuous casting machine fan-shaped segment φ 280 rollers system's transformation.
The specific embodiment
Embodiment 1:
1, roller system transforms: change three metamerism roller structures of continuous casting machine fan-shaped segment φ 280 rollers system into two joints three fens roll structures; Wherein, Roller length independently is provided with for the metamerism roller of 850mm; 2 rollers are long for the metamerism roller of 720mm changes two fens rollers of monoblock type into, and 2 rollers are long for two self-aligning bearings (original) in the middle of the metamerism roller of 720mm change 1 CARB bearing into, and both sides still are self-aligning bearing;
2, cooling water transformation: grow for the metamerism roller of 720mm changes independent cooling into for the metamerism roller of 850mm and 2 rollers the roller in the continuous casting machine fan-shaped segment φ 280 rollers systems is long, the cooling water and the roll body cooling water of two side shaft holders separated; Cancel the water adapter sleeve between three metamerism rollers (original) roll body simultaneously, utilize the axis methods for cooling, carry out the circulation of cooling water at the inner water service pipe that increases of roll body;
3, roller is that the body cooling adopts the external swivel joint to replace built-in swivel joint (original); The external swivel joint is communicated with water service pipe in roll body inside; Be communicated with fan-shaped section body cooling water pipeline (original) at the outside increase metal hose that passes through of roll body, increased the axial restraint of swivel joint.
Claims (1)
1. continuous casting machine fan-shaped segment φ 280 rollers are remodeling method, it is characterized in that concrete steps are:
(1) roller system transforms: change three metamerism roller structures of continuous casting machine fan-shaped segment φ 280 rollers system into two joints three fens roll structures; Wherein, Roller length independently is provided with for the metamerism roller of 850mm; 2 rollers are long for the metamerism roller of 720mm changes two fens rollers of monoblock type into, and 2 rollers are long for two self-aligning bearings in the middle of the metamerism roller of 720mm change 1 CARB bearing into, and both sides still are self-aligning bearing;
(2) cooling water transformation: grow for the metamerism roller of 720mm changes independent cooling into for the metamerism roller of 850mm and 2 rollers the roller in the continuous casting machine fan-shaped segment φ 280 rollers systems is long, the cooling water and the roll body cooling water of two side shaft holders separated; Cancel the water adapter sleeve between the three metamerism roller roll bodies simultaneously, utilize the axis methods for cooling, carry out the circulation of cooling water at the inner water service pipe that increases of roll body;
(3) roller is that the body cooling adopts the external swivel joint to replace built-in swivel joint; The external swivel joint is communicated with water service pipe in roll body inside; Be communicated with fan-shaped section body cooling water pipeline at the outside increase metal hose that passes through of roll body, increased the axial restraint of swivel joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102246558A CN102717042A (en) | 2012-06-29 | 2012-06-29 | Modification method of fan-shaped section phi280 roller system of continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102246558A CN102717042A (en) | 2012-06-29 | 2012-06-29 | Modification method of fan-shaped section phi280 roller system of continuous casting machine |
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| CN102717042A true CN102717042A (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102246558A Pending CN102717042A (en) | 2012-06-29 | 2012-06-29 | Modification method of fan-shaped section phi280 roller system of continuous casting machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164720A (en) * | 2006-10-19 | 2008-04-23 | 鞍钢股份有限公司 | Continuous casting method for increasing equal thickness continuous casting plate billet equal axial crystal rate in non-oriented silicon steel |
| CN201807712U (en) * | 2010-10-14 | 2011-04-27 | 天津钢铁集团有限公司 | Cooling water structure of two rollers of slab caster segment |
| CN201871697U (en) * | 2010-11-25 | 2011-06-22 | 中冶赛迪工程技术股份有限公司 | Sector roller structure of continuous casting machine for wide and heavy plates |
| CN102451896A (en) * | 2010-10-18 | 2012-05-16 | 五冶集团上海有限公司 | Method for installing fan-shaped sections of slab continuous casting machine |
-
2012
- 2012-06-29 CN CN2012102246558A patent/CN102717042A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164720A (en) * | 2006-10-19 | 2008-04-23 | 鞍钢股份有限公司 | Continuous casting method for increasing equal thickness continuous casting plate billet equal axial crystal rate in non-oriented silicon steel |
| CN201807712U (en) * | 2010-10-14 | 2011-04-27 | 天津钢铁集团有限公司 | Cooling water structure of two rollers of slab caster segment |
| CN102451896A (en) * | 2010-10-18 | 2012-05-16 | 五冶集团上海有限公司 | Method for installing fan-shaped sections of slab continuous casting machine |
| CN201871697U (en) * | 2010-11-25 | 2011-06-22 | 中冶赛迪工程技术股份有限公司 | Sector roller structure of continuous casting machine for wide and heavy plates |
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Application publication date: 20121010 |