CN201180145Y - Revolving furnace incline movement and oxygen gun hoisting control system - Google Patents

Revolving furnace incline movement and oxygen gun hoisting control system Download PDF

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Publication number
CN201180145Y
CN201180145Y CNU2008200931516U CN200820093151U CN201180145Y CN 201180145 Y CN201180145 Y CN 201180145Y CN U2008200931516 U CNU2008200931516 U CN U2008200931516U CN 200820093151 U CN200820093151 U CN 200820093151U CN 201180145 Y CN201180145 Y CN 201180145Y
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CN
China
Prior art keywords
oxygen rifle
converter
plc
tilting
frequency transformer
Prior art date
Application number
CNU2008200931516U
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Chinese (zh)
Inventor
罗自永
李瑞常
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深圳市库马克新技术股份有限公司
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Priority to CNU2008200931516U priority Critical patent/CN201180145Y/en
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Publication of CN201180145Y publication Critical patent/CN201180145Y/en

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Abstract

The utility model discloses a converter tilting and oxygen lance lifting control system which comprises an oxygen lance motor, at least two tilting motors and tilting transducers, an oxygen lance transducer and PLC; the motors and the transducers adopt a one-to-one structure, that is, one transducer controls one motor; the transducers are connected with the PLC by bus and are communicated with the PLC; one of the tilting transducers is a main transducer; the other transducers are subordinate transducers; and all the tilting transducers are connected by fibres to realize the inner communication between the tilting transducers. As the speed of a fibre communication mode is greatly superior to the prior communication mode and the system has high speed and moment response and can ensure the consistency of the speed and the load of each tilting motor; and in particular when parts of the tilting motors or the transducers go wrong, the main transducer can rapidly complete the redistribution of the speed and the load, thereby ensuring the safety of system operation.

Description

Converter inclining and oxygen rifle promote Controlling System
[technical field]
The utility model relates to the converter automatic control system, relates in particular to a kind of converter inclining and oxygen rifle and promotes Controlling System.
[background technology]
In big-and-middle-sized iron and steel enterprise, old-fashioned steel-smelting production process such as progressively replacing original openhearth steelmaking is produced in converter steelmaking.Converter installation is the crucial production unit of steelworks, and the main power drive equipment of converter system comprises the power drive equipment that body of heater fascinates and the electric control appliance of oxygen rifle transmission.The electrical control system of steel-making converter is controlling directly that body of heater fascinates and important process step such as oxygen lance lifting, traditional way is to adopt dc trailing system, and mostly be analog control mode, existing system's bulky complex. floor space is big, initial failure period is long, repair and maintenance work is heavy. characteristics such as maintenance cost height, especially the increase of electric control system hot stoppage time of causing is seriously restricting the normal operation of producing.Along with the continuous development of AC frequency conversion control techniques, alternating-current actuating system has obtained widespread use, and progressively replaces dc drive system.For improving the steel-making automatization level, reduce the production maintenance cost and lay a good foundation.As shown in Figure 1, in medium-and-large-sized converter system, body of heater fascinates and partly generally adopts four tilting motor, and be rigidly connected by step-down gear, and adopt integral fixed form and torsion bar moment absorption pattern, that is, and the flexible type of drive of integral four point toothing.Another key equipment of converter is the oxygen rifle, and a cover converter installation generally has 2 cover oxygen rifle transmission systems, is one to be equipped with a usefulness.Oxygen rifle transmission system as shown in Figure 2.For different converter systems, converter inclining and oxygen rifle promote Controlling System also can be different, but ultimate principle is identical with structure.It is unreliable that existing converter inclining and oxygen rifle lifting Controlling System still exist converter inclining and oxygen rifle to promote motor power, shortcomings such as motor output torque low-response, cause accidents such as " steel " to happen occasionally, cause heavy economic losses easily, when serious even cause casualties, therefore solving this type of problem has remarkable economic efficiency and social benefit.
[summary of the invention]
The technical problems to be solved in the utility model provide respectively fascinate in a kind of system electromotor velocity synchronously, exert oneself evenly, speed, moment responses are fast, safe and reliable converter inclining and oxygen rifle promote Controlling System.
The technical problem that the utility model further will solve provides a kind of when system's AC power breaks down, and can prevent that converter inclining and oxygen rifle that equipment breakdown takes place from promoting Controlling System.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of converter inclining and oxygen rifle promote Controlling System, comprise oxygen rifle electric motor, at least 2 electric motor that fascinate, and tilting frequency converter, oxygen rifle frequency transformer, PLC, described electric motor and frequency transformer adopt structure one to one, i.e. 1 electric motor of 1 Frequency Converter Control, described frequency transformer is connected with PLC by bus, communicates with PLC; One in the described tilting frequency converter is primary transducer, and other tilting frequency converter is from frequency transformer, and all tilting frequency converter connect by optical fiber, realizes the interior communication between the tilting frequency converter.
Above-described converter inclining and oxygen rifle promote Controlling System, can comprise 2 oxygen rifle electric motor, 2 oxygen rifle frequency transformers, 4 electric motor that fascinate, 4 tilting frequency converter, 1 cover in 2 cover oxygen rifle electric motor and the oxygen rifle frequency transformer is standby oxygen rifle electric motor and oxygen rifle frequency transformer; Described 4 tilting frequency converter constitute the opticfiber communication looped network.
Above-described converter inclining and oxygen rifle promote Controlling System, and described bus is the PROFIBUS bus.
Above-described converter inclining and oxygen rifle promote Controlling System, comprise fascinate encoder and oxygen rifle encoder, oxygen rifle encoder is used for the position detection to the oxygen rifle, the encoder that fascinates is used for the collection to the converter position, the encoder that fascinates is connected with PLC with oxygen rifle encoder, the information that collects is processed and handled by PLC, converter inclining and oxygen rifle are promoted the data foundation of control as PLC.
Above-described converter inclining and oxygen rifle promote Controlling System, comprise touch-screen, and described touch-screen and plc communication are imported control data to PLC, and show the real-time running data of each frequency transformer.
Above-described converter inclining and oxygen rifle promote Controlling System, comprise uninterruptible power supply and double power supply automatic switching switch, described uninterruptible power supply is connected with the AC power of system by double power supply automatic switching switch, when the AC power of system breaks down system is powered.
The utility model converter inclining and oxygen rifle promote in the Controlling System, one in the tilting frequency converter is primary transducer, other tilting frequency converter is from frequency transformer, all tilting frequency converter connect by optical fiber, realize the interior communication between the tilting frequency converter, the Refresh Data time is 1 millisecond in optical networking, maximum-delay is 4 milliseconds, be better than traditional signalling methods greatly, system speed, moment responses is fast, and the electric motor that can guarantee respectively to fascinate is in speed and loading uniformity, especially when partly fascinate electric motor or frequency transformer break down, primary transducer can be finished redistributing of speed and load rapidly, with the safety of assurance system operation.
The utility model converter inclining and oxygen rifle promote in the Controlling System as further adopt uninterruptible power supply and double power supply automatic switching switch, uninterruptible power supply is connected with the AC power of system by double power supply automatic switching switch, when the AC power of system breaks down, system is powered, prevent the generation of equipment breakdown.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a prior art converter inclining structural representation.
Fig. 2 is a prior art oxygen rifle transmission system synoptic diagram.
Fig. 3 is the control principle figure that the utility model converter inclining and oxygen rifle promote Controlling System embodiment.
Fig. 4 is the power supply the principle figure that the utility model converter inclining and oxygen rifle promote Controlling System embodiment.
[embodiment]
Promote among the Controlling System embodiment at converter inclining shown in Figure 3 and oxygen rifle, this system mainly is made up of PLC, touch-screen, frequency transformer, PROFIBUS communication module, opticfiber communication module and several parts of encoder, and characteristics are as follows separately for it:
1) PLC controller
PLC adopts SIEMENS S7-400 (CPU 414-2DP), it receives control task by input terminal, communicate by PROFIBUS bus and frequency transformer then, thereby issue various control commands, and obtain the real-time running data of each frequency transformer, then data are sent to touch-screen and show, it finishes corresponding fault handling task by output terminal when system breaks down in addition, as fault warning etc.
2) opticfiber communication module
The opticfiber communication module is mainly used in 4 tilting frequency converter and carries out interior communication, by connecting with optical fiber, constitute the opticfiber communication looped network, during work wherein a tilting frequency converter be set as the main transmission mode of operation, three are operated in from type of drive in addition, primary transducer sends operation information by optical fiber ring network to slave, slave is connected with main transmission by the DDCS cable link, accurately distribute with the speed/moment tracking and the moment of main transmission by automatic realization of principal and subordinate's application macro, thereby realize the synchronous and moment distribution of many motors transmission medium velocity.
3) PROFIBUS communication module
It is mainly used in and connects PLC and each frequency transformer, thereby realizes that PLC and each frequency transformer carry out data transmission by the PROFIBUS-DP network.
4) encoder
Oxygen rifle encoder is used for the position detection to the oxygen rifle, and the encoder that fascinates is used for the collection to the converter position, and the information that more than collects is processed and handled by PLC, converter inclining and oxygen rifle is promoted the data foundation of control as PLC.
4) touch-screen
It is mainly used in the various system informations that PLC is collected and shows, can also assign various control commands by its user in addition, PLC sends control commands corresponding by the PROFIBUS-DP communication bus to the frequency transformer of correspondence after receiving order, thereby finishes various control tasks.
5) frequency transformer
Oxygen rifle frequency transformer adopts 2 ACS800-04-0120-3 (is equipped with a usefulness).This frequency transformer exclusive DTC control techniques, for oxygen rifle motor provides good kinetic characteristic and load moment responding ability, surpass 200% staring torque and advanced lifting application program and can satisfy oxygen rifle processing requirement fully.Promote in the Controlling System at this converter inclining and oxygen rifle, can make full use of the lifting application program of ABB AB's exploitation, and in conjunction with PLC establishment one cover band-type brake logic control program, realize that frequency transformer is under the situation that mechanical hatching gate is not opened as yet, just can keep the full moment operation of zero-speed and do not trip, thereby guarantee that " slide rifle " fault can not take place.
Totally 4 of tilting frequency converter, the ACS800-04-0140-3 that all adopts ABB AB to produce.4 frequency transformers connect by optical fiber, constitute the principal and subordinate and use working group, during work wherein 1 be made as the main transmission mode of operation, 3 are operated in from type of drive in addition, work with speed/moment mode of operation from the transmission frequency transformer, primary transducer speed is given by the PRIFIBUS-DP bus by upper computer PLC system, primary transducer sends operation information by optical fiber ring network to slave, content comprises engine speed, torque and on off state etc., slave passes through the DDCS cable link and is connected with main transmission, is accurately distributed with the speed/moment tracking and the moment of main transmission by automatic realization of principal and subordinate's application macro, has directly realized the synchronous and moment distribution of many motors transmission medium velocity with software.
Native system has adopted 4 frequency transformers " one-to-one " type of drive, i.e. 1 electric motor that fascinates of 1 tilting frequency converter control.4 frequency transformers connect by optical fiber, constitute the principal and subordinate and use working group, during work wherein 1 be made as the main transmission mode of operation, 3 are operated in from type of drive in addition, work with speed/moment mode of operation from the transmission frequency transformer, be installed in the encoder that fascinates (grating encoder) on the converter main shaft, the converter positional information that collects is sent to PLC, calculate and handle the physical location that obtains converter by PLC, after PLC receives the converter inclining order, PLC sends control command by the PROFIBUS-DP communication bus to primary transducer according to the converter real-time position information that collects, primary transducer sends operation information by optical fiber ring network to slave, content comprises engine speed, torque and on off state etc., slave is connected with main transmission by the DDCS cable link, accurately distribute with the speed/moment tracking and the moment of main transmission by automatic realization of principal and subordinate's application macro, directly realized the synchronous and moment distribution of many motors transmission medium velocity with software.Because communication is to adopt optical fiber ring network to realize, the Refresh Data time is 1ms, maximum delay time is 4ms, so high communication speed is enough to guarantee speed and the loading uniformity between principal and subordinate's machine, have fabulous real-time, high reliability and immunity from interference, the velocity tracking trueness error is lower than 0.3%s, though the communication time that the principal and subordinate uses 1 main 10 from applicable cases under also be no more than 4ms.This is that other transmission systems are not available.
When system normally moves, upper PLC system is by fieldbus and frequency transformer normal communication, realize control and on-site data gathering, when causing certain because of certain reason during from frequency transformer or electrical fault, the fault frequency transformer quits work automatically, other 3 frequency transformers work on, and the primary transducer control load is on average reallocation between these 3 frequency transformers; When primary transducer or motor break down, primary transducer quits work, the concurrent signal that is out of order, by upper PLC system starting failure handling procedure, by the PROFIBUS-DP bus, it is main transmission that an other frequency transformer is set, and forms new master/slave working group, work on by master/slave mode, new primary transducer is responsible for speed control and load reallocation.Whole switching process was finished with interior in 2 seconds.
The characteristics that this principal and subordinate of ABB frequency transformer can reconfigure have guaranteed that converter tilting system under the situation that any 1 or 2 tilting motor or frequency transformer break down, still can work on, and the phenomenon of motor load maldistribution can not occur.
ABB frequency transformer principal and subordinate application macro switches under the situation of an other frequency transformer from a frequency transformer at main frame, and " speed ring " and " moment ring " that the principal and subordinate uses remains in the inner realization of frequency transformer, has the response speed and the control accuracy that are exceedingly fast.And the frequency transformer of other brand is when the principal and subordinate uses, in order to realize the switching of main frame from a frequency transformer to another frequency transformer, must be placed on the frequency transformer outside to " speed ring ", for example in PLC, realize " speed ring ", like this, the response speed and the control accuracy of " speed ring " are just had a greatly reduced quality, and can cause a series of problems such as speed shakiness, " slide car ".When especially in steelmaking process, operating converter inclining, for example when the steelworker need sample the molten steel sample, the unexpected variation of load moment required " speed ring " to respond as early as possible, but may have little time response with " speed ring " that PLC realizes, occur by " slide car ".
In order to monitor the position of fascinating of converter, system only is equipped with a grating encoder on the converter main shaft, and this signal directly is widely read backstage PLC system, calculates, changes by PLC.Tilting motor then need not the configuration codes device, and reason is that frequency transformer communicates by fiber optic loop, and the DTC control mode of ACS800 frequency transformer satisfies converter rotating speed of motor control accuracy fully.
One cover converter inclining and oxygen rifle promotes Controlling System two cover oxygen gun systems, is 1 to be equipped with 1 usefulness.Be installed in the oxygen rifle encoder (grating encoder) on the oxygen rifle motor shaft, the oxygen rifle positional information that collects is sent to PLC, calculate and handle the physical location that obtains the oxygen rifle by PLC, after PLC receives oxygen rifle control task, send control commands corresponding by the PROFIBUS-DP bus to oxygen rifle frequency transformer, PLC obtains the real-time information of oxygen rifle position by oxygen rifle encoder, accurately controls oxygen rifle motor then in view of the above, reaches specified location and finishes relevant steelmaking oxygen blowing task up to the oxygen rifle.When work oxygen rifle frequency transformer or oxygen rifle motor broke down, PLC started standby oxygen gun system rapidly by the PROFIBUS-DP bus, and carried out corresponding fault handling by output terminal, as the fault warning etc.
In the frequency-changing control system of oxygen rifle part, the most key a bit is that frequency transformer need have very large torque at starting, reason is that the oxygen rifle belongs to typical lift load, as long as braking newspaper lock one is opened, motor just has 100% load, and at this moment rotating speed of motor is zero, considers factors such as acceleration torque, moment of friction and oxygen rifle steel bonding slag should be not less than 120% of nominal torque so the torque at starting of oxygen rifle frequency transformer is minimum again.And the ACS800 Series Frequency Converter exclusive DTC control techniques, for oxygen rifle motor provides good kinetic characteristic and load moment responding ability, surpass 200% staring torque and advanced lifting application program and can satisfy oxygen rifle processing requirement fully.In addition, the oxygen rifle needs strict monitoring, prevent " slide rifle " fault, in this converter inclining and oxygen rifle motor lifting system, made full use of the lifting application program of ABB AB's exploitation, and, can realize that frequency transformer is under the situation that mechanical hatching gate is not opened as yet in conjunction with PLC establishment one cover band-type brake logic control program, just can keep the full moment operation of zero-speed and do not trip, improve the reliability of system applies greatly.
The at present alternating current motors that adopt of oxygen lance for steel-making converter motor, AC power are just often by inverter supply more, realize decline, the oxygen blast of oxygen rifle, the speed governing operation of lifting; Must promptly promote the oxygen rifle by another set of standby power supply power supply during the AC power forced outage, prevent equipment breakdown.When same converter was being tapped, AC power had a power failure suddenly, need enable a cover standby power supply power supply immediately, and converter inclining unclamps the converter band-type brake during to correct position, and converter is verted by deadweight and got back to zero-bit.The utility model embodiment converter inclining and oxygen rifle lifting Controlling System is furnished with the reliable standby power supply of a cover for this reason, and its principle as shown in Figure 4.Standby power supply is made up of uninterruptible power supply and double power supply automatic switching switch.AC power just often, tilting frequency converter and oxygen rifle frequency transformer are by the ac power supply of system, when AC power breaks down, double power supply automatic switching switch is finished power supply automatically and is switched, by uninterruptible power supply UPS to inverter supply, switch fast, intelligent degree height, can guarantee the frequency transformer need for electricity fully, prevent that fault from taking place.
Embodiment of the present utility model has following advantage:
1) dual power supply, it is uninterrupted to guarantee that converter inclining and oxygen rifle promote motor power:
This Controlling System carries standby power supply, and AC power is just often by inverter supply, and the speed governing operation of the decline of realization oxygen rifle, oxygen blast, lifting reaches the control of fascinating to converter; During the AC power forced outage, standby power supply is powered rapidly, prevents equipment breakdown.
2) guarantee that many converter inclining motor speeds are synchronous and it is even to exert oneself, converter " is not nodded "
Converter inclining and oxygen rifle promote in the Controlling System, 4 frequency transformers connect by optical fiber, constitute the principal and subordinate and use working group, during work wherein one be made as the main transmission mode of operation, three are operated in from type of drive in addition, work with speed/moment mode of operation from the transmission frequency transformer, primary transducer speed is given by the PROFIBUS-DP bus by upper computer PLC system, primary transducer sends operation information by optical fiber ring network to slave, content comprises engine speed, torque and on off state etc., slave is connected with main transmission by the DDCS cable link, accurately distribute with the speed/moment tracking and the moment of main transmission by automatic realization of principal and subordinate's application macro, directly realized the synchronous and moment distribution of many motors transmission medium velocity with software.Because communication is to adopt optical fiber ring network to realize, the Refresh Data time is 1ms, maximum delay time is 4ms, so high communication speed is enough to guarantee speed and the loading uniformity between principal and subordinate's machine, have fabulous real-time, high reliability and immunity from interference, the velocity tracking trueness error is lower than 0.3%s, though the communication time that the principal and subordinate uses 1 main 10 from applicable cases under also be no more than 4ms.This is that other similar Controlling System is not available.
3) separate unit or two tilting motor or frequency transformer break down, still can works better
When system normally moves, upper PLC system is by fieldbus and frequency transformer normal communication, realize control and on-site data gathering, when causing certain because of certain reason during from frequency transformer or electrical fault, the fault frequency transformer quits work automatically, other 3 frequency transformers work on, and the primary transducer control load is on average reallocation between these three frequency transformers; When primary transducer or motor break down, primary transducer quits work, the concurrent signal that is out of order, by upper PLC system starting failure handling procedure, by the PROFIBUS bus an other frequency transformer being set is main transmission, form new master/slave working group, work on by master/slave mode, new primary transducer is responsible for speed control and load reallocation.Whole switching process was finished with interior in 2 seconds, and the phenomenon of motor load maldistribution can not occur.
4) speed, moment responses speed are fast, guarantee not " slide car "
Tilting frequency converter has the advantages that the principal and subordinate can reconfigure, guaranteed that principal and subordinate's application macro switches under the situation of an other frequency transformer from a frequency transformer at main frame, " speed ring " and " moment ring " that the principal and subordinate uses remains in the inner realization of frequency transformer, has the response speed and the control accuracy that are exceedingly fast.And common frequency transformer is when the principal and subordinate uses, in order to realize the switching of main frame from a frequency transformer to another frequency transformer, must be placed on the frequency transformer outside to " speed ring ", for example in PLC, realize " speed ring ", like this, the response speed and the control accuracy of " speed ring " are just had a greatly reduced quality, and can cause a series of problems such as speed shakiness, " slide car ".When especially operating converter inclining in steelmaking process, for example when the steelworker need sample the molten steel sample, the unexpected variation of load moment required " speed ring " to respond as early as possible, but may have little time response with " speed ring " that PLC realizes, the slide car occurs.
5) adopt special-purpose sequence of control, guarantee that " slide rifle " fault does not take place the oxygen rifle
The oxygen rifle needs strict monitoring, prevent " slide rifle " fault, promote in the Controlling System at this converter inclining and oxygen rifle, make full use of the lifting application program of ABB AB's exploitation, and worked out one in conjunction with PLC and overlapped the band-type brake logic control program, realize frequency transformer under the situation that mechanical hatching gate is not opened as yet, just can keep the full moment operation of zero-speed and do not trip, improved the reliability of system applies greatly.
6) pull-in torque is a nominal torque 200%, guarantees to satisfy oxygen rifle processing requirement
In the frequency-changing control system of oxygen rifle part, the most key a bit is that frequency transformer need have very large torque at starting, reason is that the oxygen rifle belongs to typical lift load, as long as braking newspaper lock one is opened, motor just has 100% load, and at this moment rotating speed of motor is zero, considers factors such as acceleration torque, moment of friction and oxygen rifle steel bonding slag should be not less than 120% of nominal torque so the torque at starting of oxygen rifle frequency transformer is minimum again.The oxygen rifle frequency transformer of native system adopts the DTC control techniques, and for oxygen rifle motor provides good kinetic characteristic and load moment responding ability, staring torque above 200% and advanced lifting application program can satisfy oxygen rifle processing requirement fully.

Claims (6)

1. converter inclining and oxygen rifle promote Controlling System, it is characterized in that, comprise oxygen rifle electric motor, at least 2 electric motor that fascinate, and tilting frequency converter, oxygen rifle frequency transformer, PLC, described electric motor and frequency transformer adopt structure one to one, i.e. 1 electric motor of 1 Frequency Converter Control, described frequency transformer is connected with PLC by bus, communicates with PLC; One in the described tilting frequency converter is primary transducer, and other tilting frequency converter is from frequency transformer, and all tilting frequency converter connect by optical fiber, realizes the interior communication between the tilting frequency converter.
2. converter inclining according to claim 1 and oxygen rifle promote Controlling System, it is characterized in that, comprise 2 oxygen rifle electric motor, 2 oxygen rifle frequency transformers, 4 electric motor that fascinate, 4 tilting frequency converter, 1 cover in 2 cover oxygen rifle electric motor and the oxygen rifle frequency transformer is standby oxygen rifle electric motor and oxygen rifle frequency transformer; Described 4 tilting frequency converter constitute the opticfiber communication looped network.
3. converter inclining according to claim 2 and oxygen rifle promote Controlling System, it is characterized in that described bus is the PROFIBUS bus.
4. converter inclining according to claim 2 and oxygen rifle promote Controlling System, it is characterized in that, comprise fascinate encoder and oxygen rifle encoder, oxygen rifle encoder is used for the position detection to the oxygen rifle, the encoder that fascinates is used for the collection to the converter position, the encoder that fascinates is connected with PLC with oxygen rifle encoder, and the information that collects is processed and handled by PLC, converter inclining and oxygen rifle is promoted the data foundation of control as PLC.
5. promote Controlling System according to described converter inclining of arbitrary claim and oxygen rifle in the claim 1 to 3, it is characterized in that, comprise touch-screen, described touch-screen and plc communication are imported control data to PLC, and show the real-time running data of each frequency transformer.
6. promote Controlling System according to described converter inclining of arbitrary claim and oxygen rifle in the claim 1 to 3, it is characterized in that, comprise uninterruptible power supply and double power supply automatic switching switch, described uninterruptible power supply is connected with the AC power of system by double power supply automatic switching switch, when the AC power of system breaks down system is powered.
CNU2008200931516U 2008-04-02 2008-04-02 Revolving furnace incline movement and oxygen gun hoisting control system CN201180145Y (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021268A (en) * 2010-12-27 2011-04-20 中国恩菲工程技术有限公司 Tilting control method of converter accidents
CN102392101A (en) * 2011-11-29 2012-03-28 中冶南方工程技术有限公司 Automatic correcting error control on converter tilting angle
CN102424884A (en) * 2011-10-19 2012-04-25 北京金自天正智能控制股份有限公司 Lifting control system for oxygen gun accident and control method for oxygen gun accident
CN102534108A (en) * 2011-08-10 2012-07-04 孙萍萍 Oxygen lance transmission device of oxygen top blown steel-making converting furnace
CN102776327A (en) * 2012-08-17 2012-11-14 长春工业大学 Furnace tilting control method for prolonging service life of AOD furnace
CN103014229A (en) * 2012-12-25 2013-04-03 武汉钢铁(集团)公司 master-slave control method for converter tilting frequency conversion system
CN103060516A (en) * 2013-01-10 2013-04-24 鞍钢集团自动化公司 Converter tilting frequency conversion timing control system
CN103268095A (en) * 2013-04-28 2013-08-28 深圳市英威腾电气股份有限公司 Failure processing method and frequency converter multi-machine primary-and-secondary control system
CN104049566A (en) * 2014-07-03 2014-09-17 中冶赛迪电气技术有限公司 Electrical drive method for safe converter tilting
CN104090514A (en) * 2014-07-17 2014-10-08 南京铁道职业技术学院 Master-slave type frequency converting control system and control method based on single-chip microcomputer
CN104152628A (en) * 2014-08-27 2014-11-19 中冶南方工程技术有限公司 Tilting motor brake loosing control method and device
CN104991509A (en) * 2015-06-26 2015-10-21 江苏永钢集团有限公司 Steelmaking communication network connection system
CN105529968A (en) * 2016-01-08 2016-04-27 南京乐惠轻工装备制造有限公司 Power-off synchronization control system and method for main motor and slave motor
CN105525056A (en) * 2015-12-18 2016-04-27 太原重工股份有限公司 Test run device for converter tiling equipment
CN107641680A (en) * 2017-10-27 2018-01-30 江苏永钢集团有限公司 Converter body fascinates delay contracting control method

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021268A (en) * 2010-12-27 2011-04-20 中国恩菲工程技术有限公司 Tilting control method of converter accidents
CN102534108B (en) * 2011-08-10 2014-01-08 孙萍萍 Oxygen lance transmission device of oxygen top blown steel-making converting furnace
CN102534108A (en) * 2011-08-10 2012-07-04 孙萍萍 Oxygen lance transmission device of oxygen top blown steel-making converting furnace
CN102424884B (en) * 2011-10-19 2013-06-12 北京金自天正智能控制股份有限公司 Lifting control system for oxygen gun accident and control method for oxygen gun accident
CN102424884A (en) * 2011-10-19 2012-04-25 北京金自天正智能控制股份有限公司 Lifting control system for oxygen gun accident and control method for oxygen gun accident
CN102392101B (en) * 2011-11-29 2013-10-30 中冶南方工程技术有限公司 Automatic correcting error control on converter tilting angle
CN102392101A (en) * 2011-11-29 2012-03-28 中冶南方工程技术有限公司 Automatic correcting error control on converter tilting angle
CN102776327A (en) * 2012-08-17 2012-11-14 长春工业大学 Furnace tilting control method for prolonging service life of AOD furnace
CN102776327B (en) * 2012-08-17 2013-11-27 长春工业大学 Furnace tilting control method for prolonging service life of AOD furnace
CN103014229B (en) * 2012-12-25 2014-10-08 武汉钢铁(集团)公司 master-slave control method for converter tilting frequency conversion system
CN103014229A (en) * 2012-12-25 2013-04-03 武汉钢铁(集团)公司 master-slave control method for converter tilting frequency conversion system
CN103060516A (en) * 2013-01-10 2013-04-24 鞍钢集团自动化公司 Converter tilting frequency conversion timing control system
CN103268095A (en) * 2013-04-28 2013-08-28 深圳市英威腾电气股份有限公司 Failure processing method and frequency converter multi-machine primary-and-secondary control system
CN103268095B (en) * 2013-04-28 2015-09-16 深圳市英威腾电气股份有限公司 Fault handling method and Multiple-converter master-slave control system
CN104049566B (en) * 2014-07-03 2016-05-11 中冶赛迪电气技术有限公司 A kind of Electrified Transmission control method of converter inclining safety
CN104049566A (en) * 2014-07-03 2014-09-17 中冶赛迪电气技术有限公司 Electrical drive method for safe converter tilting
CN104090514B (en) * 2014-07-17 2017-02-15 南京铁道职业技术学院 Master-slave type frequency converting control system and control method based on single-chip microcomputer
CN104090514A (en) * 2014-07-17 2014-10-08 南京铁道职业技术学院 Master-slave type frequency converting control system and control method based on single-chip microcomputer
CN104152628B (en) * 2014-08-27 2016-04-20 中冶南方工程技术有限公司 A kind of tilting motor declutches control method and device
CN104152628A (en) * 2014-08-27 2014-11-19 中冶南方工程技术有限公司 Tilting motor brake loosing control method and device
CN104991509A (en) * 2015-06-26 2015-10-21 江苏永钢集团有限公司 Steelmaking communication network connection system
CN105525056A (en) * 2015-12-18 2016-04-27 太原重工股份有限公司 Test run device for converter tiling equipment
CN105529968A (en) * 2016-01-08 2016-04-27 南京乐惠轻工装备制造有限公司 Power-off synchronization control system and method for main motor and slave motor
CN105529968B (en) * 2016-01-08 2018-03-30 南京乐惠轻工装备制造有限公司 A kind of main motor and power off synchronous control system and its synchronisation control means from motor
CN107641680A (en) * 2017-10-27 2018-01-30 江苏永钢集团有限公司 Converter body fascinates delay contracting control method

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