CN203245349U - Billet continuous casting soft reduction withdrawal device - Google Patents
Billet continuous casting soft reduction withdrawal device Download PDFInfo
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- CN203245349U CN203245349U CN 201320290601 CN201320290601U CN203245349U CN 203245349 U CN203245349 U CN 203245349U CN 201320290601 CN201320290601 CN 201320290601 CN 201320290601 U CN201320290601 U CN 201320290601U CN 203245349 U CN203245349 U CN 203245349U
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Abstract
The utility model discloses a billet continuous casting soft reduction withdrawal device, and belongs to the technical field of continuous casting machine equipment. The withdrawal machine is used for providing an enough soft reduction region and can realize optimal reduction. The technical scheme is that the withdrawal device comprises six withdrawal units, a degerming unit and two free rolls, wherein the six withdrawal units are arranged and mounted in sequence, the two free rolls are mounted at the rear parts of the six withdrawal units, the degerming unit is mounted at the rear parts of the two free rollers, and the total length of the reduction regions of the six withdrawal units is greater than or equal to 4 meters. According to the utility model, during drawn steel production, the position of the tail end of a casting blank liquid core is calculated by a coder of a driving motor of the second withdrawal unit, so that the soft reduction region is enabled to be in the two-phase region of the solidification tail end of the casting blank; an electrical control device and a hydraulic control device control six servo oil cylinders to drive six withdrawal upper rolls, and the roll gaps are adjusted fast and accurately, so that the accurate implementation of soft reduction is ensured, the excellent casting blank center quality and the casting blank shape are achieved, and the quality of the billet product is ensured.
Description
Technical field
The utility model relates to a kind of steel mill continuous small-billet casting Blank drawing machine, belongs to the continuous casting machine technical field.
Background technology
Along with the exploitation of variety steel on billet caster, produce the quality of steel billet in the urgent need to improving billet caster, the continuous casting Blank drawing machine with the dynamic soft-reduction function has at home and abroad appearred for this reason.Light press function refers to produce the solidification shrinkage amount that certain drafts compensates strand by near the plus-pressure liquid core of continuous casting billet end, can eliminate or reduce on the one hand strand and shrink the internal voids that forms, prevent that the molten steel of intergranular solute element from flowing to the strand central cross; On the other hand, gently depressing the squeezing action that produces can also promote the solute element of liquid core center enrichment along throwing direction reverse flow, solute element is redistributed in molten steel, thereby made the more even compact that solidifies of strand, play the effect that improves center segregation and reduce center porosity.
Present gently depress the problem that there are two aspects in Blank drawing machine, the one because the light pressure range of throwing of conticaster is little, drafts is too small, for center segregation and loose improve not obvious.The 2nd, depressing position can not accurately be determined, if strand just solidified before gently depressing, obviously gently depress and just lost meaning, if still some solidifies strand not yet fully after gently depressing end, center segregation will continue to produce in follow-up process of setting.Both of these case has directly affected the quality that billet caster is produced square billet.
The utility model content
Technical problem to be solved in the utility model provides a kind of continuous small-billet casting and gently depresses Blank drawing machine, the light pressure range of its throwing is large, can realize best drafts, and can adjust quickly and accurately roll gap, in order to guarantee to implement timely and accurately gently to depress, obtain good strand center mass and casting blank shape.
The technical scheme that solves the problems of the technologies described above is:
A kind of continuous small-billet casting is gently depressed Blank drawing machine, it comprises 6 throwing unit, mould adobe blocks unit and two free rolls, 6 throwing sequence of unit are arranged and are installed, two free rolls are installed in rear portion, 6 throwing unit, mould adobe blocks cellular installation at the rear portion of two free rolls, and the total pressure range length in 6 throwing unit is more than or equal to 4 meters.
Above-mentioned continuous small-billet casting is gently depressed Blank drawing machine, described every throwing unit all comprises throwing frame, throwing lower roll, throwing top roll, servo hydraulic cylinder, servo hydraulic cylinder is installed in the top of throwing frame, the throwing top roll is below servo hydraulic cylinder, the throwing lower roll is below the throwing top roll, servo hydraulic cylinder is connected with the throwing top roll, continuous casting billet passes through between throwing lower roll and throwing top roll, servo hydraulic cylinder is connected with fluid pressure line, servo valve is installed in fluid pressure line, and servo valve is connected with Electricity Signal Control Equipment.
Above-mentioned continuous small-billet casting is gently depressed Blank drawing machine, the described unit of moulding adobe blocks comprises the frame of moulding adobe blocks, the lower roll of moulding adobe blocks, moulding adobe blocks drives top roll, the hydraulic cylinder of moulding adobe blocks, the hydraulic cylinder of moulding adobe blocks is installed in the top of the frame of moulding adobe blocks, mould adobe blocks and drive top roll below the hydraulic cylinder of moulding adobe blocks, mould adobe blocks lower roll below the driving top roll of moulding adobe blocks, the hydraulic cylinder of moulding adobe blocks is connected with the driving top roll of moulding adobe blocks, continuous casting billet is from moulding adobe blocks lower roll and mould adobe blocks to drive between the top roll and pass through, the hydraulic cylinder of moulding adobe blocks is connected with fluid pressure line, hydraulic control valve is installed in fluid pressure line, and hydraulic control valve is connected with Electricity Signal Control Equipment.
Above-mentioned continuous small-billet casting is gently depressed Blank drawing machine, and the throwing top roll of the 2nd, 4,6 throwing unit in described 6 throwing unit is connected with reductor, drive motors, and the driving top roll of moulding adobe blocks of the unit of moulding adobe blocks is connected with reductor, drive motors.
Above-mentioned continuous small-billet casting is gently depressed Blank drawing machine, on the drive motors of described the 2nd throwing unit encoder is housed, and encoder is connected with electrical control gear.
Above-mentioned continuous small-billet casting is gently depressed Blank drawing machine, on the drive motors of the described unit of moulding adobe blocks encoder is housed, and encoder is connected with electrical control gear.
The beneficial effects of the utility model are:
The utility model is in drawing the steel production process, calculated the position of strand liquid core end by the encoder of the drive motors of the 2nd throwing unit, thereby guarantee gently to depress the zone in the solidification end two phase region of strand, and by electrical control gear, 6 throwing top rolls of 6 servo hydraulic cylinders drives of hydraulic control device control, adjust quickly and accurately roll gap, in order to guarantee to implement timely and accurately gently to depress, obtain good strand center mass and casting blank shape.The utility model is rational in infrastructure, easy to operate, it is respond well gently to depress, and guaranteed the square billet product quality, improved the economic benefit of enterprise.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the structural representation of throwing unit;
Fig. 3 is the structural representation that the throwing unit of drive motors is installed;
Fig. 4 is the structural representation of unit of moulding adobe blocks;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the top view of Fig. 4.
Mark is as follows among the figure: servo hydraulic cylinder 1, and throwing drives top roll 2, moulds adobe blocks to drive top roll 3, the hydraulic cylinder 4 of moulding adobe blocks, throwing top roll 5, throwing lower roll 6, free roll 7, throwing frame 8, rotation-preventing mechanism 9, drive motors 10, reductor 11, the lower roll 12 of moulding adobe blocks, the frame 13 of moulding adobe blocks, guide roller 14, pedestal 15, drive motors 16, reductor 17.
The specific embodiment
The utility model comprises 6 throwing unit, mould adobe blocks unit and two free rolls, 6 throwing sequence of unit are arranged and are installed, two free rolls are installed in rear portion, 6 throwing unit, mould adobe blocks cellular installation at the rear portion of two free rolls, and the total pressure range length in 6 throwing unit is more than or equal to 4 meters.
Show among the figure that every throwing unit all comprises throwing frame 8, throwing lower roll 6, throwing top roll 5, servo hydraulic cylinder 1.Servo hydraulic cylinder 1 is installed in the top of throwing frame 8, throwing top roll 5 is below servo hydraulic cylinder 1, throwing lower roll 6 is below throwing top roll 5, servo hydraulic cylinder 1 is connected with throwing top roll 5, continuous casting billet passes through between throwing lower roll 6 and throwing top roll 5, servo hydraulic cylinder 1 is connected with fluid pressure line, and servo valve is installed in fluid pressure line, and servo valve is connected with Electricity Signal Control Equipment.Electricity Signal Control Equipment control servo valve makes servo hydraulic cylinder 1 drive throwing top roll 5 and finishes as requested the work of depressing.
Show among the figure that the throwing top roll 5 of the 2nd, 4,6 throwing unit in 6 throwing unit is connected with reductor 11, drive motors 10, throwing top roll 5 becomes throwing and drives top roll 2, drives steel billet and travels forward.On the drive motors 10 of the 2nd throwing unit encoder is housed, encoder is connected with electrical control gear.Encoder be used for to calculate the position of strand liquid core end, so that reduction parameters changes with the variation of solidification end position, thereby guarantees gently to depress the zone in the solidification end two phase region of strand.1st, the throwing top roll 5 of 3,5 groups of throwing unit does not connect motor and speed reducer, is not drive roll.
Rotation-preventing mechanism 9 is to make reductor 11 be fixed on the mechanism of throwing frame 8, prevents that reductor 11 from producing relative motion in the course of the work and between the throwing frame 8.
Show among the figure that the unit of moulding adobe blocks comprises the frame 13 of moulding adobe blocks, the lower roll 12 of moulding adobe blocks, moulding adobe blocks drives top roll 3, the hydraulic cylinder 4 of moulding adobe blocks, guide roller 14, pedestal 15.The hydraulic cylinder 4 of moulding adobe blocks is installed in the top of the frame 13 of moulding adobe blocks, mould adobe blocks and drive top roll 3 below the hydraulic cylinder 4 of moulding adobe blocks, mould adobe blocks lower roll 12 below the driving top roll 3 of moulding adobe blocks, the hydraulic cylinder 4 of moulding adobe blocks is connected with the driving top roll 3 of moulding adobe blocks, continuous casting billet is from moulding adobe blocks lower roll 12 and mould adobe blocks to drive between the top roll 3 and pass through, the hydraulic cylinder 4 of moulding adobe blocks is connected with fluid pressure line, and hydraulic control valve is installed in fluid pressure line, and hydraulic control valve is connected with Electricity Signal Control Equipment.The hydraulic cylinder 4 of moulding adobe blocks is used for opening taking off ingot when watering, and guide roller 14 is used for the guiding of strand and dummy bar.
Show among the figure that the driving top roll 3 of moulding adobe blocks of the unit of moulding adobe blocks is connected with reductor 17, drive motors 16, also can drive strand and travel forward.On the drive motors 16 encoder is installed, and electrical control gear links together, calculate and open the position of taking off ingot when watering.
Show among the figure that in the throwing unit with mould adobe blocks between the unit and to also have two free rolls 7, the 6th roller one of it and throwing unit is used from the strand that aligning is gently depressed.
In drawing the steel production process, calculated the position of strand liquid core end by the encoder of the drive motors 10 of the 2nd throwing unit, thereby guarantee gently to depress the zone in the solidification end two phase region of strand, and by electrical control gear, 6 throwing top rolls 5 of 6 servo hydraulic cylinders of hydraulic control device control, 1 drive, adjust quickly and accurately roll gap, in order to guarantee to implement timely and accurately gently to depress, obtain good strand center mass and casting blank shape.
Claims (6)
1. a continuous small-billet casting is gently depressed Blank drawing machine, it is characterized in that: it comprises 6 throwing unit, mould adobe blocks unit and two free rolls (7), 6 throwing sequence of unit are arranged and are installed, two free rolls (7) are installed in rear portion, 6 throwing unit, mould adobe blocks cellular installation at the rear portion of two free rolls (7), and the total pressure range length in 6 throwing unit is more than or equal to 4 meters.
2. continuous small-billet casting according to claim 1 is gently depressed Blank drawing machine, it is characterized in that: described every throwing unit all comprises throwing frame (8), throwing lower roll (6), throwing top roll (5), servo hydraulic cylinder (1), servo hydraulic cylinder (1) is installed in the top of throwing frame (8), throwing top roll (5) is in servo hydraulic cylinder (1) below, throwing lower roll (6) is in the below of throwing top roll (5), servo hydraulic cylinder (1) is connected with throwing top roll (5), continuous casting billet passes through between throwing lower roll (6) and throwing top roll (5), servo hydraulic cylinder (1) is connected with fluid pressure line, servo valve is installed in fluid pressure line, and servo valve is connected with Electricity Signal Control Equipment.
3. continuous small-billet casting according to claim 2 is gently depressed Blank drawing machine, it is characterized in that: the described unit of moulding adobe blocks comprises the frame of moulding adobe blocks (13), the lower roll (12) of moulding adobe blocks, mould adobe blocks and drive top roll (3), the hydraulic cylinder (4) of moulding adobe blocks, the hydraulic cylinder (4) of moulding adobe blocks is installed in the top of the frame of moulding adobe blocks (13), mould adobe blocks and drive top roll (3) in the hydraulic cylinder of moulding adobe blocks (4) below, mould adobe blocks lower roll (12) in the below of moulding adobe blocks driving top roll (3), the hydraulic cylinder (4) of moulding adobe blocks is connected with the driving top roll (3) of moulding adobe blocks, continuous casting billet is from the lower roll of moulding adobe blocks (12) and mould adobe blocks to drive between the top roll (3) and pass through, the hydraulic cylinder (4) of moulding adobe blocks is connected with fluid pressure line, hydraulic control valve is installed in fluid pressure line, and hydraulic control valve is connected with Electricity Signal Control Equipment.
4. continuous small-billet casting according to claim 3 is gently depressed Blank drawing machine, it is characterized in that: the throwing top roll (5) of the 2nd, 4,6 throwing unit in described 6 throwing unit is connected with reductor (11), drive motors (10), and the driving top roll (3) of moulding adobe blocks of the unit of moulding adobe blocks is connected with reductor (17), drive motors (16).
5. continuous small-billet casting according to claim 4 is gently depressed Blank drawing machine, it is characterized in that: on the drive motors (10) of described the 2nd throwing unit encoder is housed, encoder is connected with electrical control gear.
6. continuous small-billet casting according to claim 5 is gently depressed Blank drawing machine, it is characterized in that: the drive motors of the described unit of moulding adobe blocks is equipped with encoder on (16), and encoder is connected with electrical control gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290601 CN203245349U (en) | 2013-05-26 | 2013-05-26 | Billet continuous casting soft reduction withdrawal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290601 CN203245349U (en) | 2013-05-26 | 2013-05-26 | Billet continuous casting soft reduction withdrawal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245349U true CN203245349U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320290601 Expired - Fee Related CN203245349U (en) | 2013-05-26 | 2013-05-26 | Billet continuous casting soft reduction withdrawal device |
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| CN (1) | CN203245349U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134392A (en) * | 2014-07-31 | 2014-11-05 | 广西北流仲礼瓷业有限公司 | Jiggering machine used for teaching |
| CN104772444A (en) * | 2014-01-15 | 2015-07-15 | 宝山钢铁股份有限公司 | Control method for reducing tail shrinkage hole of square billet |
| CN107008875A (en) * | 2017-04-12 | 2017-08-04 | 宣化钢铁集团有限责任公司 | The implementation method of billet caster double-mode |
-
2013
- 2013-05-26 CN CN 201320290601 patent/CN203245349U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772444A (en) * | 2014-01-15 | 2015-07-15 | 宝山钢铁股份有限公司 | Control method for reducing tail shrinkage hole of square billet |
| CN104772444B (en) * | 2014-01-15 | 2017-06-06 | 宝山钢铁股份有限公司 | Reduce the control method of square billet afterbody shrinkage cavity |
| CN104134392A (en) * | 2014-07-31 | 2014-11-05 | 广西北流仲礼瓷业有限公司 | Jiggering machine used for teaching |
| CN107008875A (en) * | 2017-04-12 | 2017-08-04 | 宣化钢铁集团有限责任公司 | The implementation method of billet caster double-mode |
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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 |
Granted publication date: 20131023 Termination date: 20150526 |
|
| EXPY | Termination of patent right or utility model |