CN1220196A - Liquid level control system for conticaster mould - Google Patents
Liquid level control system for conticaster mould Download PDFInfo
- Publication number
- CN1220196A CN1220196A CN 98117771 CN98117771A CN1220196A CN 1220196 A CN1220196 A CN 1220196A CN 98117771 CN98117771 CN 98117771 CN 98117771 A CN98117771 A CN 98117771A CN 1220196 A CN1220196 A CN 1220196A
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- China
- Prior art keywords
- controller
- liquid level
- liquid
- electronic cylinder
- control
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Control Of Non-Electrical Variables (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention discloses a liquid-level control system for crystallizer of conticaster. Said invented system includes crystallizer, support, liquid-level sensor, driver, controller, digital electric cylinder, stopper mechanism, press bar and hand-held controller. The above-mentioned devices are formed into a closed loop system by using digital signal and by means of control system to trace and control the change of liquid level accurately at all times. Said invented system adopts digital control technique, has no hydraulic and clutch mechanism, so that it is simple and reliable in structure, rapid in response rate, high in control accuracy, low in cost and energy consumption and safe in use.
Description
The invention belongs to field of metal casting technology, specifically is a kind of fluid level control system that is used for conticaster crystallizer.
In metal continuous cast, it is constant to require to flow into the metal volume that strand is pulled out after the liquid metal of crystallizer and the condensation from tundish, to guarantee the liquid level stabilizing of liquid metal in crystallizer, reaches the quality of improving strand, reduce overflow, the purpose of breakout ratio.
For achieving the above object, normal servo apply hydraulic pressure control technology is come the liquid level of molten steel in the crystallization control device in casting process.This method is to drive hydraulic servo cylinder with analog signal, the servo-drive system control accuracy is not high in its work, and system's contamination resistance is low, stops up easily, analog signal is disturbed easily, servo valve is subjected to Temperature Influence big, debug difficulties, and servo valve costs an arm and a leg in addition, the cost height, and system is under high-temperature work environment, and phenomenon such as hydraulic system is easy to generate race, emits, water clock easily causes production accident.Though the technology that adopts electrical servo system to replace Hydrauservo System is abroad arranged, owing to still adopt complicated analog control system, and in order to solve Artificial Control and the quick conversion of control automatically, and adopt clutch apparatus; In order to improve MECHANISM PRECISION, adopt the method for gear reduction transmission.The deficiency of these methods is system complex, and difficulty is installed, and control accuracy is not high.
The purpose of this invention is to provide a kind of liquid level control system for conticaster mould, it adopts digital driving control system, the precision height of control liquid steel level, and response speed is fast, and the conversion of control and Artificial Control can significantly reduce excessive, bleed-out accident rapidly automatically.Native system has simple in structure, debugging, characteristics easy for installation, simple to operate, with low cost.
For reaching above-mentioned purpose, the present invention includes crystallizer, stopper mechanism, depression bar, it is characterized in that:
1. also be provided with liquid level sensor, driver, controller in the system, electronic cylinder and hand held controller, above equipment utilization digitized signal by control system, constitutes a closed-loop system of following the tracks of and controlling the liquid level variation of liquid at any time.
2. a desired value H is set
S, leave in the controller;
3. detected liquid height value H
R, enter in the controller through collection, compare with desired value, obtain Δ H=H
S-H
R, after fuzzy or PID calculation process, output pulse signal through driver, enters electronic cylinder with Δ H;
4. electronic cylinder converts displacement to regulate the stopper mechanism of control molten steel flow.
Electronic cylinder in the system adopts digitalized electric cylinder, and the motor in the electronic cylinder is a stepper motor.
The present invention does not have hydraulic pressure and clutch apparatus because system's employing is digital control, can reduce controlling unit, so system is simple and reliable, and debugging is convenient, and the simultaneity factor response speed is fast, the control accuracy height.System of the present invention control automatically is rapid with the Artificial Control conversion, therefore can in time handle burst accident, can significantly reduce excessive, bleed-out accident.System of the present invention also has cost low, and few characteristics consume energy.
The present invention is described further below in conjunction with accompanying drawing.
Fig. 1 is a system architecture schematic diagram of the present invention.
1 is electronic cylinder among the figure, and 2 is depression bar, and 3 is liquid level sensor, and 4 is stopper mechanism, and 5 is liquid metal, and 6 is controller, and 7 is crystallizer, and 8 is driver, and 9 are the liquid metal outlet, and 10 is tundish, and 11 is upper bracket, and 12 is lower carriage, and 13 is hand held controller.
Leave the desired value HS that sets in controller 6 li.After liquid level changed in the crystallizer 7, liquid level sensor 3 recorded the liquid level of liquid metal 5 in the crystallizer 7, and liquid level sensor 3 is delivered to this signal in the controller 6, with the desired value H that sets in the controller 6
SCompare, obtain both difference DELTA H=H
S-H
RWith Δ H after fuzzy or PID calculation process, output pulse signal, be input to electronic cylinder 1 through driver 8, to drive electronic cylinder 1, drive the stopper mechanism 4 that regulates liquid metal flow and do the motion of rising or decline, and change the circulation area of the liquid metal outlet 9 of tundish 10, flow into flow in the crystallizer 7 with the control liquid metal, make liquid metal liquid level 5 in the crystallizer 7 not produce big fluctuation because of the inflow of liquid metal and strand leave.When breaking down, cut off the power supply in the hand held controller 13, make system transfer the Artificial Control of using depression bar 2 to.
For making system obtain high accuracy and response fast, electronic cylinder 1 adopts digitalized electric cylinder, and the motor in the electronic cylinder 1 is a stepper motor, can make system's trimming precision reach ± 0.01 millimeter, response speed reaches 5 milliseconds.
Claims (3)
1. liquid level control system for conticaster mould, comprise crystallizer (7), it is characterized in that also being provided with in the system liquid level sensor (3), driver (8) and controller (6), electronic cylinder (1), stopper mechanism (4), depression bar (2), hand held controller (13), upper bracket (12) and lower carriage (13), above equipment utilization digitized signal by controller (6), constitutes a closed-loop system of following the tracks of and controlling the liquid level variation of liquid at any time.
2. system according to claim 1 is characterized in that:
(1). a desired value H is set
S, leave in the controller (6);
(2). detected liquid height value H
R, enter controller (6) through collection, compare with desired value, obtain Δ H=H
S-H
R, after fuzzy or PID calculation process, output pulse signal behind driver, enters electronic cylinder (1) with Δ H;
(3). electronic cylinder (1) converts displacement to regulate the stopper mechanism (4) of control molten steel flow.
3. system according to claim 1 is characterized in that described electronic cylinder (1) adopts digitalized electric cylinder, and the motor in the electronic cylinder (1) is a stepper motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117771A CN1070745C (en) | 1998-09-18 | 1998-09-18 | Liquid level control system for conticaster mould |
| DE1999146115 DE19946115A1 (en) | 1998-09-18 | 1999-09-17 | Liquid level control system for conticaster mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117771A CN1070745C (en) | 1998-09-18 | 1998-09-18 | Liquid level control system for conticaster mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1220196A true CN1220196A (en) | 1999-06-23 |
| CN1070745C CN1070745C (en) | 2001-09-12 |
Family
ID=5225695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98117771A Expired - Fee Related CN1070745C (en) | 1998-09-18 | 1998-09-18 | Liquid level control system for conticaster mould |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1070745C (en) |
| DE (1) | DE19946115A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006102813A1 (en) * | 2005-03-28 | 2006-10-05 | Hong Jiang | Oscillating apparatus for the mold of continuous casting |
| CN101229576B (en) * | 2007-01-25 | 2011-06-01 | 鞍钢股份有限公司 | Slag line control method of continuous casting crystallizer |
| CN101364114B (en) * | 2008-07-17 | 2011-06-15 | 上海宝信软件股份有限公司 | Liquid level on-line control system and method for self-adapting and fuzzy logic PID crystallizer |
| CN102223968A (en) * | 2008-11-20 | 2011-10-19 | Sms西马格股份公司 | System for tracking system properties |
| CN102985196A (en) * | 2010-03-19 | 2013-03-20 | Sms西马格股份公司 | Device and method for closing an outflow opening of a metallurgical vessel |
| CN108594751A (en) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | A kind of aluminum steel milling train casting liquid level monitoring device |
| CN109530647A (en) * | 2018-12-28 | 2019-03-29 | 武汉泛洲中越合金有限公司 | D.C.casting automatic flow control device and flow control method |
| CN110102730A (en) * | 2019-04-18 | 2019-08-09 | 宣化钢铁集团有限责任公司 | A kind of crystallizer pouring procedure |
| CN110270671A (en) * | 2019-07-28 | 2019-09-24 | 山东莱钢永锋钢铁有限公司 | One kind is adjusted based on electrical PID and reduces conticaster closure works system and method |
| CN111570735A (en) * | 2020-05-22 | 2020-08-25 | 国家电投集团黄河上游水电开发有限责任公司 | Automatic liquid level height control device for molten aluminum casting |
| CN111822689A (en) * | 2020-07-27 | 2020-10-27 | 宝武集团马钢轨交材料科技有限公司 | High-quality steel continuous casting argon blowing stopper rod, stopper rod argon blowing system and argon blowing method |
| CN113263170A (en) * | 2021-05-13 | 2021-08-17 | 马鞍山钢铁股份有限公司 | Method for remedying bleed-out by pouring cut-off of sizing nozzle of continuous casting machine |
| CN114799106A (en) * | 2022-06-01 | 2022-07-29 | 娄底职业技术学院 | Continuous casting machine based on liquid level control of continuous casting crystallizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100569416C (en) * | 2008-03-18 | 2009-12-16 | 中南大学 | A kind of constant fluid level control device of fused mass box for casting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1015073B (en) * | 1989-06-23 | 1991-12-11 | 清华大学 | Mixed photoelectric integrated semi-conductor optical bistable device |
| FR2703277B1 (en) * | 1993-03-30 | 1995-05-24 | Lorraine Laminage | Method and device for regulating the level of liquid metal in a mold for continuous casting of metals. |
| US5587998A (en) * | 1995-03-03 | 1996-12-24 | At&T | Method and apparatus for reducing residual far-end echo in voice communication networks |
-
1998
- 1998-09-18 CN CN98117771A patent/CN1070745C/en not_active Expired - Fee Related
-
1999
- 1999-09-17 DE DE1999146115 patent/DE19946115A1/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006102813A1 (en) * | 2005-03-28 | 2006-10-05 | Hong Jiang | Oscillating apparatus for the mold of continuous casting |
| CN1305604C (en) * | 2005-03-28 | 2007-03-21 | 姜虹 | Mould vibration device |
| CN101229576B (en) * | 2007-01-25 | 2011-06-01 | 鞍钢股份有限公司 | Slag line control method of continuous casting crystallizer |
| CN101364114B (en) * | 2008-07-17 | 2011-06-15 | 上海宝信软件股份有限公司 | Liquid level on-line control system and method for self-adapting and fuzzy logic PID crystallizer |
| CN102223968A (en) * | 2008-11-20 | 2011-10-19 | Sms西马格股份公司 | System for tracking system properties |
| CN102985196A (en) * | 2010-03-19 | 2013-03-20 | Sms西马格股份公司 | Device and method for closing an outflow opening of a metallurgical vessel |
| CN108594751A (en) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | A kind of aluminum steel milling train casting liquid level monitoring device |
| CN109530647A (en) * | 2018-12-28 | 2019-03-29 | 武汉泛洲中越合金有限公司 | D.C.casting automatic flow control device and flow control method |
| CN110102730A (en) * | 2019-04-18 | 2019-08-09 | 宣化钢铁集团有限责任公司 | A kind of crystallizer pouring procedure |
| CN110102730B (en) * | 2019-04-18 | 2024-03-22 | 宣化钢铁集团有限责任公司 | Casting method of crystallizer |
| CN110270671A (en) * | 2019-07-28 | 2019-09-24 | 山东莱钢永锋钢铁有限公司 | One kind is adjusted based on electrical PID and reduces conticaster closure works system and method |
| CN111570735A (en) * | 2020-05-22 | 2020-08-25 | 国家电投集团黄河上游水电开发有限责任公司 | Automatic liquid level height control device for molten aluminum casting |
| CN111822689A (en) * | 2020-07-27 | 2020-10-27 | 宝武集团马钢轨交材料科技有限公司 | High-quality steel continuous casting argon blowing stopper rod, stopper rod argon blowing system and argon blowing method |
| CN111822689B (en) * | 2020-07-27 | 2021-08-31 | 宝武集团马钢轨交材料科技有限公司 | High-quality steel continuous casting argon blowing stopper rod, stopper rod argon blowing system and argon blowing method |
| CN113263170A (en) * | 2021-05-13 | 2021-08-17 | 马鞍山钢铁股份有限公司 | Method for remedying bleed-out by pouring cut-off of sizing nozzle of continuous casting machine |
| CN114799106A (en) * | 2022-06-01 | 2022-07-29 | 娄底职业技术学院 | Continuous casting machine based on liquid level control of continuous casting crystallizer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19946115A1 (en) | 2000-04-27 |
| CN1070745C (en) | 2001-09-12 |
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