CN1008985B - The method of starting multi-cast-stock continuous casting machine - Google Patents
The method of starting multi-cast-stock continuous casting machineInfo
- Publication number
- CN1008985B CN1008985B CN86104290A CN86104290A CN1008985B CN 1008985 B CN1008985 B CN 1008985B CN 86104290 A CN86104290 A CN 86104290A CN 86104290 A CN86104290 A CN 86104290A CN 1008985 B CN1008985 B CN 1008985B
- Authority
- CN
- China
- Prior art keywords
- liquid level
- crystallizer
- signal face
- gate
- actual liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/147—Multi-strand plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Starting has the method for the continuous casting equipment of a plurality of continuous casting bar bases, particularly utilize adjustable anchor gate by pans pour steel in a plurality of continuous cast crystallizers, the rated liquid level of molten steel remains in the measuring section, formed each bar base is discharged with identical speed by a shared removal device, it is characterized by: the connection of marker gear is as all crystallizer (A within measuring section, B, C) actual liquid level arrives after the following signal face, or implement by that actual liquid level of at first arrive going up signal face, each actual liquid level is adjusted to rated liquid level from signal face down along the ascending curve of predesignating.
Description
The present invention relates to the method that a kind of starting has the continuous casting equipment of a plurality of continuous casting bar bases, particularly utilize of the starting method of adjustable anchor gate by pans continuous casting equipment of pour steel in a plurality of continuous cast crystallizers, the rated liquid level of molten steel remains in the measuring section, and formed each bar base is discharged with identical speed by a shared removal device.
So a kind of method has been proposed in patent DE-PS34326111, open the anchor gate on the pans during cast, and make and when the actual liquid level on cold base head in each crystallizer rises to the primary signal face that is in the measuring section bottom, to make anchor gate carry out throttling, so that make each actual liquid level homogenising, and after this, connect bar base discharger.When each actual liquid level is unbalanced, connects the work of discharger and implement by at first arriving that the actual liquid level that is positioned at second signal face below the rated liquid level at the latest.Therefore this cast of carrying out discharge with identical speed should make technical process further simplify, and should improve the reliability of work especially.But this method fails to control the rule of actual liquid level rising thereby can not farthest shorten the duration of pouring.
The objective of the invention is to, shorten the duration of pouring with simple method, further make actual liquid level homogenising, cast is reliable.
The purpose that proposes in order to reach, the present invention's regulation, turning in the measuring section when the actual liquid level in all crystallizers all reaches time signal face of bar base discharger, or implement, and each actual liquid level is begun to adjust to rated liquid level along a predetermined ascending curve from signal face down by actual liquid level that at first arrive to go up signal face.Can suitably handle the homogenising problem of the actual liquid level of in patent DE-PS34326111, being sought of each crystallizer in this way, and when up and down between the signal face guarantees on purpose to connect bar base discharger in the reliable crystallizer packed height scope of discharging of bar base, make the actual liquid level of each crystallizer successfully enter the general injection adjusting of rated liquid level respectively at measuring section.Corresponding therewith, marker gear is reacted to the situation that the rising of the actual liquid level in the crystallizer at first occurs.It or connect when in the end actual liquid level surmounts down signal face, in case connect when perhaps then first actual liquid level reaches signal face when not meeting above-mentioned situation.DE-PS34326111 is the same with patent, closes those its actual liquid level automatically and still be lower than the crystallizer anchor gate of signal face down after marker gear is connected.
For can be very smooth and the cast of reliable operation ground, the present invention suggestion, signal face down begin can be in gate more than the molten steel solidification border and carry out the transition to the molten steel of crossing the crystallizer edge when rated liquid level is regulated and overflow in the scope below the border and carry out to the adjusting of anchor gate along ascending curve.In this method, regulative mode waters logical section transitions to the rated liquid level adjusting that keeps relatively more steady liquid level in contrast to this comparatively slowly at the bath liquid level of crystallizer from change anchor gate rapidly along ascending curve, has stoped the obstruction that occurs at anchor gate to water solidifying of beam on the other hand to a considerable extent.For this point of accomplishing to mention later, also making the maximum throttling of when cast anchor gate is 50%, preferably make apart from the basket pouring position farthest, promptly belong to the crystallizer of that gate throttle degree of outermost crystallizer less than the inside.Therefore very considered low this situation of outside area liquid steel temperature effectively at continuous casting equipment or pans.Exist this possibility in addition, when promptly the actual liquid level that falls behind in when cast is lower than following signal face before ascending curve is regulated anchor gate is all opened, so that wash away coagulated mass.
Below by description of drawings the present invention:
Fig. 1 is for there being the schematic diagram of three continuous casting equipments at a pouring position; And
Fig. 2 and Fig. 3 understand possible casting process with graphic table.
As shown in Figure 1, label 1 expression casting ladle, molten steel injects pans 3 by casting ladle 1 through an adjustable anchor gate 2, it is the anchor gate of sliding gate 4 that pans 3 have three its patterns, sliding gate 4 control molten steel flow among continuous cast crystallizer A, B, the C through gate spool 5, for this reason, each sliding gate and a controlling organization 6 mechanically connect, and each operating position of controlling organization is then determined by position measurement instrument 7.The free end of gate spool 5 stretches among crystallizer A, B, the C, and the rated liquid level 8 that crystallizer A, B, C demarcate by operate as normal is among the measuring section 9 that is located at the liquid surface measuring device of being made up of transmitter 10 and receiver 11 among each crystallizer A, B, the C.
Be located at crystallizer A, B, C back be one for simplification the secondary cooling device of expression and for each casts the shared removal device of bar base 18 continuously, promptly draws steel rider 12 in the drawings not, draw steel rider 12 to have transmission device 13, drive controller 14 and discharge velocity measuring instrument 15, the latter is defeated by drive controller 14 on the one hand with its measured value, be defeated by processor 16 on the other hand, processor 16 also receives and handles the position measurement instrument 7 of adjusting sliding gate 4 apertures and the measured value that the receiver 11 in the liquid surface measuring device 10,11 is sent here in addition.Resulting these data enter with the as a whole control computer 17 of processor 16 in, control computer 17 sends to the controlling organization 6 of sliding gate 4 and the drive controller 14 of marker gear 12 to 15 with corresponding control command.There discharge velocity is decided to be constant, that is to say, each the bar base 18 that forms in crystallizer A, B, C is discharged by shared removal device 12 to 15 with identical speed, this means that the crystallizer rated liquid level of predesignating is only regulated by sliding gate at injection end unilaterally.In addition, sliding gate 4 is in throttle position for keeping rated liquid level when normal cast, so that the manipulation that can open or close.
In order to pour into a mould, the head 19 of cold base 18 enters crystallizer A, B, C, and disconnects marker gear 13, and measuring section 9 is provided with down signal face 21 and last signal face 22, and they are used for controlling sliding gate 4 and marker gear 13.
Specifically, according to the present invention, at first sliding gate preferably only opens 35% during cast, does not also open entirely in any case.Therefore make sliding gate 4 no matter still adjusting nargin all be arranged opening direction at closing direction, this adjusting nargin makes each is rising among crystallizer A, B, the C actual liquid level 20(referring to Fig. 2) can rise to rated liquid level 8 along an ascending curve of predesignating 40 from signal face 21 down always, this ascending curve is to adapt with the operating characteristic of equipment by the program of correspondingly formulating processor 16.
The criterion of the curve 40 of injection rate is when determining crystallizer A, B, C cast, and it never should be too gently or be steep excessively, so that exceeds the molten steel solidification border in sliding gate, or surpasses and overflow the border on the top at crystallizer edge.Each sliding gate 4 is pressed the adjusting of curve 40 as represented like that from following signal face 21, and controls by the liquid level 20 that is rising among corresponding crystallizer A, B, the C.When last rises to when surmounting down signal face 21 among all actual liquid level A20 or B20 or the C20, the control computer 17 of processor 16 is connected the marker gear 13 of the shared removal device of each bar base 18.After this, actual liquid level A20, B20, C20 are independently of one another according to identical criterion serving as basis and ascending curve 40 risings therefore parallel to each other.Until demarcating good rated liquid level 8 places swing by normal cast.If at this moment too fastly make this swing cause excessive pulse, then can cause and overflow the crystallizer edge owing to liquid level 20 rises.If when cast crystallizer A or B or C in one of actual liquid level 20 arrived signal face 22, and at this moment other two also under signal face 21 down, then the corresponding sliding gates 4 of actual liquid level with these backwardnesss are sent out code.
The figure line of Fig. 2 is applicable to actual liquid level 20 shown in Figure 1.To this, after the cast beginning throttling is arranged was simultaneously opened all sliding gates 4, the actual liquid level 20 of crystallizer C at first reached signal face 21 down behind time Ct, at this moment was responsible for the sliding gate 4 of crystallizer C and bore the injection of regulating molten steel by designed curve 40.The actual liquid level 20 of crystallizer B and A is successively crossed signal face 21 behind time Bt and At, afterwards, regulate by the rising of curve 40.The actual liquid level 20 of neither one has tangible backwardness.Also C20 near on before the signal face 22, A20 has reached time signal face 21, so the starting order of marker gear 13 comes from actual liquid level A20.
Example shown in Figure 3 is another kind of situation, and actual there liquid level A20 has arrived signal face 22, and actual liquid level B20 has crossed time signal face 21, but actual liquid level C20 drops on their back far away.Be under this situation at actual liquid level, marker gear 13 is signal face 22 time starting in actual liquid level A20 arrival, and closes simultaneously not rise to and surpass the sliding gate 4 of the actual liquid level C20 of signal face 21 down.
Claims (5)
1, starting has the method for the continuous casting equipment of a plurality of continuous casting bar bases, particularly utilize adjustable anchor gate by pans pour steel in a plurality of continuous cast crystallizers, the rated liquid level of molten steel remains in the measuring section, formed each bar base is discharged with identical speed by a shared removal device, it is characterized by: the connection of marker gear (12 to 15) is as all crystallizer (A within measuring section (9), B, C) signal face (21) afterwards under actual liquid level (20) arrived, or implement by that actual liquid level (20) of at first arrive going up signal face (22), the ascending curve (40) that each actual liquid level (20) is predesignated from signal face (21) edge is adjusted to rated liquid level (8).
2, in accordance with the method for claim 1, it is characterized in that, when marker gear (12 to 15) is connected, close those its actual liquid level (20) and still be lower than the sliding gate (4) of the crystallizer of signal face (21) down.
3, according to claim 1 or 2 described methods, it is characterized in that, in the molten steel that can cross the crystallizer edge to the adjusting of anchor gate (4) along ascending curve (40) gate (4) in when carrying out the transition to the rated liquid level adjusting that following signal face begins overflows scope below the border, carry out on molten steel solidification the border more than.
According to claim 1 or 2 described methods, it is characterized in that 4, the maximum throttling of anchor gate during cast (4) is 50%.
5, according to claim 1 or 2 described methods, it is characterized in that, apart from pans (3) pouring position farthest, promptly belong to the crystallizer (B) of cast gate (4) throttle degree of outer crystallizer (A, C) less than the inside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3538222.8 | 1985-10-26 | ||
| DE19853538222 DE3538222A1 (en) | 1985-10-26 | 1985-10-26 | METHOD FOR STARTING UP A CONTINUOUS CASTING SYSTEM WITH MULTIPLE STRINGS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86104290A CN86104290A (en) | 1987-05-06 |
| CN1008985B true CN1008985B (en) | 1990-08-01 |
Family
ID=6284598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86104290A Expired CN1008985B (en) | 1985-10-26 | 1986-06-24 | The method of starting multi-cast-stock continuous casting machine |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0223078B1 (en) |
| JP (1) | JP2540032B2 (en) |
| CN (1) | CN1008985B (en) |
| AT (1) | ATE41340T1 (en) |
| CA (1) | CA1265912A (en) |
| CZ (1) | CZ281650B6 (en) |
| DE (2) | DE3538222A1 (en) |
| GR (1) | GR3000078T3 (en) |
| IN (1) | IN163970B (en) |
| MX (1) | MX172000B (en) |
| PL (1) | PL154653B3 (en) |
| SU (1) | SU1447270A3 (en) |
| ZA (1) | ZA865223B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109789477A (en) * | 2016-09-27 | 2019-05-21 | 海德鲁铝业钢材有限公司 | Method for multiple casting metals strand |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62183951A (en) * | 1986-02-07 | 1987-08-12 | Sumitomo Metal Ind Ltd | Control method for surface level of molten steel in mold |
| JPS62183952A (en) * | 1986-02-07 | 1987-08-12 | Sumitomo Metal Ind Ltd | Control method for surface level of molten steel in mold |
| MX170682B (en) * | 1988-11-22 | 1993-09-07 | Hitachi Zosen Corpuration | METHOD FOR THE AUTOMATIC STARTING OF A CONTINUOUS CASTING DEVICE |
| GB2249978B (en) * | 1990-11-26 | 1994-08-24 | Ishikawajima Harima Heavy Ind | Tundish flow control |
| FR2677284B1 (en) * | 1991-06-07 | 1993-08-27 | Pechiney Aluminium | PROCESS AND APPARATUS FOR AUTOMATIC CASTING OF SEMI-PRODUCTS. |
| EP0564674A1 (en) * | 1992-04-06 | 1993-10-13 | Zimmermann & Jansen GmbH | Method of starting a continuous-casting installation |
| EP0855238A1 (en) * | 1997-01-24 | 1998-07-29 | Alusuisse Technology & Management AG | Process for vertical continuous casting of metals |
| DE10033656A1 (en) * | 2000-07-11 | 2002-01-24 | Sms Demag Ag | Method and continuous casting device with a device for measuring the mold level for liquid metal, in particular for liquid steel |
| EP1395380B1 (en) | 2001-04-19 | 2006-08-16 | Alcoa Inc. | Continuous pressure molten metal supply system and method for forming continuous metal articles |
| US7934627B2 (en) | 2005-10-13 | 2011-05-03 | Alcoa Inc. | Apparatus and method for high pressure extrusion with molten aluminum |
| CN102430728B (en) * | 2011-12-07 | 2013-07-10 | 中宁县锦宁铝镁新材料有限公司 | Multi-crystallizer horizontal continuous casting tundish and continuous casting process implemented by using same |
| CN103112709B (en) * | 2013-03-11 | 2015-11-04 | 嘉诺资源再生技术（苏州）有限公司 | A kind of online removal device |
| CN105215305B (en) * | 2015-10-14 | 2017-09-01 | 中冶连铸技术工程有限责任公司 | A kind of three machines three stream sheet billet continuous casting machine production line |
| AT518476B1 (en) * | 2016-04-12 | 2020-02-15 | Primetals Technologies Austria GmbH | Process for starting and stopping a multi-strand continuous casting machine, common plug drive and multi-strand continuous casting machine |
| US10913108B2 (en) | 2017-09-12 | 2021-02-09 | Wagstaff, Inc. | Dynamically positioned diffuser for metal distribution during a casting operation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH639575A5 (en) * | 1979-04-27 | 1983-11-30 | Concast Ag | METHOD AND DEVICE FOR CONTINUOUSLY MOLDING SEVERAL STRINGS. |
| EP0149447A3 (en) * | 1983-12-29 | 1986-10-22 | VOEST-ALPINE Aktiengesellschaft | Method of controlling the level in continuous casting moulds of a multiple-strand continuous casting plant, and arrangement for carrying out the method |
| DE3432611C2 (en) * | 1984-09-05 | 1986-09-04 | Metacon AG, Zürich | Procedure for starting up a continuous caster with several strands |
-
1985
- 1985-10-26 DE DE19853538222 patent/DE3538222A1/en active Granted
-
1986
- 1986-06-24 CN CN86104290A patent/CN1008985B/en not_active Expired
- 1986-06-26 PL PL1986260288A patent/PL154653B3/en unknown
- 1986-07-10 SU SU864027772A patent/SU1447270A3/en active
- 1986-07-11 ZA ZA865223A patent/ZA865223B/en unknown
- 1986-07-21 IN IN547/CAL/86A patent/IN163970B/en unknown
- 1986-08-20 CA CA000516400A patent/CA1265912A/en not_active Expired - Lifetime
- 1986-08-29 JP JP61201895A patent/JP2540032B2/en not_active Expired - Lifetime
- 1986-10-17 AT AT86114413T patent/ATE41340T1/en not_active IP Right Cessation
- 1986-10-17 EP EP86114413A patent/EP0223078B1/en not_active Expired
- 1986-10-17 DE DE8686114413T patent/DE3662339D1/en not_active Expired
- 1986-10-24 MX MX004144A patent/MX172000B/en unknown
- 1986-10-24 CZ CS867721A patent/CZ281650B6/en not_active IP Right Cessation
-
1989
- 1989-06-15 GR GR89400087T patent/GR3000078T3/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109789477A (en) * | 2016-09-27 | 2019-05-21 | 海德鲁铝业钢材有限公司 | Method for multiple casting metals strand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86104290A (en) | 1987-05-06 |
| EP0223078B1 (en) | 1989-03-15 |
| EP0223078A1 (en) | 1987-05-27 |
| DE3538222C2 (en) | 1989-05-11 |
| JPS62101359A (en) | 1987-05-11 |
| DE3662339D1 (en) | 1989-04-20 |
| GR3000078T3 (en) | 1990-10-31 |
| JP2540032B2 (en) | 1996-10-02 |
| MX172000B (en) | 1993-11-29 |
| PL154653B3 (en) | 1991-09-30 |
| ATE41340T1 (en) | 1989-04-15 |
| SU1447270A3 (en) | 1988-12-23 |
| ZA865223B (en) | 1987-03-25 |
| DE3538222A1 (en) | 1987-05-27 |
| CA1265912A (en) | 1990-02-20 |
| CZ281650B6 (en) | 1996-12-11 |
| IN163970B (en) | 1988-12-17 |
| CZ772186A3 (en) | 1996-09-11 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |