CN104034174B - Stove cold sinter cogeneration automatic control system - Google Patents
Stove cold sinter cogeneration automatic control system Download PDFInfo
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Abstract
Stove cold sinter cogeneration automatic control system, relates to sintering waste heat and utilizes technical field, and being does not affect sintering machine production, reliable automatic control system for brand-new stove cold sinter cogeneration technology provides a kind of.Control system comprises the transhipment according to whole sintering deposit, and stove is cold, heat-obtaining, the field control station set by technological process such as generating, engineer station, operator station, server, communication network, data archiving system, Report Printing System etc.The present invention achieves the electrical security of signal on signal input circuit with low cost, redundancy structure is all employ in remote communication module, data communication bus, controller and controlled stage and operation level network portion, drastically increase security of system, reliability.The present invention can realize system feeding, cool furnace intake, waste heat boiler water consumption and steam production, generated energy, the isoparametric cooperation control of power consumption, meets the integrated automation of safe operation and height, fully realizes the maximization of UTILIZATION OF VESIDUAL HEAT IN.
Description
Technical field
The present invention relates to sintering waste heat and utilize technical field, specifically, is a kind of automatic control system for the cogeneration of stove cold sinter.
Background technology
Steel and iron industry is national economy important foundation industry, and energy-output ratio accounts for 15% of national industrial total energy consumption, is the key industry of energy-saving and emission-reduction.In steel manufacture process, the energy consumption of sintering circuit is higher, is generally the 10-15% of iron and steel enterprise's total energy consumption.At present, sintering deposit utilizes air dielectric to cool through straight line cooler or circular cooler, and sintering deposit is in the process of cooling, and heat energy becomes waste gas sensible heat, and EGT is between 100-400 DEG C.In sintering circuit total energy consumption, there is nearly 50% heat energy with sintering device flue gas and the discharge of cooling machine waste gas sensible heat form.
Stove cold sinter waste heat power generation process flow and Equipments Setting, the waste heat discharged in sintering deposit cooling procedure is fully utilized, and generated energy significantly improves, sintering system obviously reduces from power consumption rate, the obvious feature of energy-saving effect, is a revolutionary technology, has vast potential for future development.For this brand-new stove cold sinter cogeneration technology, the coordination between many technological parameters be solved, coupling and controlling, reach and the consistent state of the art of expection, best technological achievement and maximum economic benefit could be realized.Excellent, the good stability of a set of real-time of its configuration, reliability and the high automatic control system of security, to this brand-new system expection utilization rate of waste heat of raising, reduce energy consumption, reach final distinct economic and have great importance.
Summary of the invention
The object of the invention is for solving the problems of the technologies described above, for stove cold sinter cogeneration technology provides one not affect, sintering machine is produced, reliable, accuracy-control system various process parameters, makes a set of automatic control system of the reasonable Effec-tive Function of stove cold sinter afterheat generating system.
The present invention for achieving the above object, the technical scheme adopted is: stove cold sinter cogeneration automatic control system, comprises multiple field control station, hot ore deposit transhipment automatic control system, cool furnace charging automatic control system, cool furnace automatic control system, cold ore deposit transhipment automatic control system, waste heat boiler automatic control system, steam turbine automatic control system, server, operator station;
Described multiple field control stations comprise transhipment control station, cool furnace control station, waste heat boiler control station and steam turbine control station, transhipment control station controls hot ore deposit transhipment automatic control system and cold ore deposit transhipment automatic control system, cool furnace control station controlled cooling model stove charging automatic control system and cool furnace automatic control system, waste heat boiler control station controls waste heat boiler automatic control system, and steam turbine control station controls steam turbine automatic control system;
Described hot ore deposit transhipment automatic control system controls hot ore deposit transporting velocity, and it comprises take out device, chain board conveying mechanism; Transhipment control station gathers current of electric and the rotary speed parameter of chain board conveying mechanism, after making contrast with the sintering deposit load collected, hot ore deposit transporting velocity is adjusted according to comparing result, given parameters is outputted to frequency converter, configure of frequency AC Drive has frequency PID controller, thus control chain scraper conveyor rotating speed in 0.20m/s ~ 0.30m/s change, meet the delivery requirements of sintering deposit under different production status, the sintering deposit of about 650-750 DEG C is sent in cool furnace and is cooled by chain scraper conveyor;
Described cool furnace charging automatic control system controls cloth speed, and it comprises cool furnace distributing device, bar type push-pull valve, water-cooling system and lubricating system, the motor of cool furnace distributing device adopts frequency converter configuration frequency PID controller, the inhomogeneities that controlled cooling model stove distributing device rotating speed is produced to adapt to sintering deposit, cool furnace charging automatic control system gathers the fault message of cool furnace, when breaking down, close bar type push-pull valve, cool furnace fire door is sealed completely, water-cooling system and lubricating system are furnished with cooling-water temperature sensor, water sensor, level sensor and fuel level sensor, chain control is carried out for same cool furnace distributing device, the sintering mineral aggregate of 650-750 DEG C that funnel and chute spin out below cool furnace distributing device enters cool furnace to carry out cooling and heat-obtaining,
Described cool furnace automatic control system controls the material level of sintering feed in cool furnace, pressure and furnace temperature, comprises air-introduced machine, flue and various by-pass valve control thereof that cool furnace prestores bottom vibra feeder below room, cooling chamber, cool furnace, the air blast of bottom, cool furnace, the cool furnace top, room that prestores is provided with material-level detecting device, build material level PID controller, according to the level signals that material-level detecting device collects, regulate frequency and the amplitude of the vibra feeder below cool furnace, change the size of stove load, change and control stove material level, id-motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate the adjustable cooling furnace pressure of rotation speed of fan, cool furnace prestores above room and is provided with pressure sensor, jointly negative pressure controller is formed with air-introduced machine and fans entrance control valve, ensure that cool furnace prestores the micro-vacuum state of room at-200Pa, blower motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate cold blast rate in the adjustable cool furnace of rotation speed of fan, thus adjustment in-furnace temperature, temperature sensor is provided with below vibra feeder, with air blast and the common formation temperature controller of fan outlet two blinds control valves, ensure that the sintering deposit drop temperature of cool furnace controls below 120 DEG C, sintering deposit completes the heat exchange of sintering deposit and cooling-air at cooling chamber, enter in cold ore deposit transhipment operation,
Described cold ore deposit transhipment automatic control system comprises the mechanical, electrical sub-skin band scale ﹑ hyperthermia radiation meter of belt conveying and overtemperature watering device, belted electronic balance carries out consecutive weighings to sintering deposit, the deviate of weighing value and setting value feedovers to vibra feeder, ore discharge amount is controlled in stable range of set value, prescribe a time limit when hyperthermia radiation meter detects that sintering deposit temperature exceedes in setting value, start water injector cooling, protection belt feeder;
Described waste heat boiler automatic control system comprises two temperature two pressure boiler, boiler feed pipe, feed pump, boiler steam pipe, boiler-steam dome, feedwater piping establishes flow sensor, jet chimney establishes flow sensor and boiler-steam dome establishes level sensor, waste heat boiler inner sensor all adopts water level cas PID control device, water level signal and Setting signal compare by waste heat boiler automatic control system, steam flow is as feedforward amount, and water level cas PID control device opens control boiler water level by controlling feed-water valve;
Described steam turbine automatic control system comprises turbine controller, condenser well, demineralized water control valve mended by condenser, condenser recirculation control valve and condenser pump, turbine controller gathers steam turbine tach signal, power signal and steam pressure signal composition cas PID control loop, and the signal results collected is exported to condenser benefit water in dust removal control valve, thus control the throttle flow of main steam, turbine generator system output power is made to be stabilized in setting value, Water in Condenser Well Water Level is higher than setting value, open condenser pump, mended the adjustment of demineralized water control valve by condenser recirculation control valve and condenser simultaneously, Water in Condenser Well Water Level is stabilized in setting range.
Described field control station is provided with in multiple switch board, switch board the remote communication module comprising signal isolated loop, Surge suppression loop, analog input module, thermal resistance signal conversion module, analog output module, On-off signal module, output switch parameter module and redundancy.
The remote communication module of the redundancy of described field control station is connected with from redundant manipulator with the main redundant manipulator in switch board by the fieldbus of redundancy, main redundant manipulator and working asynchronously from redundant manipulator, main redundant manipulator and be connected to the controlled stage fiberoptic delay of redundancy respectively from redundant manipulator, same engineer station, server, remote data transmission is carried out between Historical archiving server and other controller, operation level fiberoptic delay is utilized to carry out exchanges data between server and operator station, operation level equipment and controlled stage equipment is made to be in the different network segments.
The invention has the beneficial effects as follows:
1, monitor sintering deposit movement system, keep chain mat machine, the good operation of the equipment such as conveyer, predicts possible fault, and handles it in advance, achieves sintering deposit stream handover operation in case of a fault simultaneously.
2, automatically regulate the air quantity of air-introduced machine and air blast, the wind-warm syndrome of conservative control sintering deposit cool furnace, blast, automatically regulate the unlatching of rotating blanking valve, the material level of conservative control sintering deposit cool furnace.By the accurate control to cool furnace parameters, under the prerequisite not affecting sinter strength and quality, realize the maximization of UTILIZATION OF VESIDUAL HEAT IN, as far as possible many safety and economic operations meeting unit.
3, automatically regulate Boiler Steam desuperheat injection flow rate, ensure that boiler export vapor (steam) temperature is in the zone of reasonableness of medium temperature and medium pressure boiler parameter.The water level of medium temperature and medium pressure waste heat boiler controls automatically, ensures that Boiler Steam steam production and temperature, pressure thereof are in rational scope.
4, the accurate control of stove cold sinter afterheat generating system is realized, the integrated automation of safe operation and height.Height integrated automation achieves under the prerequisite that few operator and high safety are produced as far as possible, creates maximum sharp economic benefit.
Accompanying drawing explanation
Fig. 1 is Control system architecture schematic diagram of the present invention;
Fig. 2 is the structural representation of cool furnace heat-obtaining automatic control loop;
Fig. 3 is the process flow diagram of stove cold sinter cogeneration;
Fig. 4 is the structural representation of signal isolated loop of the present invention;
Fig. 5 is the structural representation in Surge suppression loop of the present invention;
Fig. 6 is that the signal of control system of the present invention flows to schematic diagram;
Graphical indicia: 1, main redundant manipulator, 2, from redundant manipulator, 3, controlled stage fiberoptic delay, 4, Historical archiving server, 5, server, 6, engineer station, 7, Report Printing System, 8, operation level fiberoptic delay, 9, active station, 10, on-scene communication bus, 11, the remote communication module of redundancy, 12, analog input module, 13, thermal resistance signal conversion module, 14, analog output module, 15, On-off signal module, 16, output switch parameter module, 17, control station is transported, 18, cool furnace control station, 19, waste heat boiler control station, 20, steam turbine control station, 21, cool furnace, 22, disposable dust remover, 23, emergent air-release valve, 24, waste heat boiler, 25, secondary filter, 26, air-introduced machine, 27, chimney, 28, air blast, 29, valve-off, 30, smoke flow control valve, 31, sintering machine, 32, breaker, 33, hot ore deposit conveying device, 34, cool furnace, 35, disposable dust remover, 36, emergency diffusion valve, 37, filling condensing turbine, 38, generator, 39, cooling tower, 40, water circulating pump, 41, condenser, 42, condensate pump, 43, gland steam heater, 44, low pressure feed water pump, 45, main feed pump, 46, oxygen-eliminating device, 47, cold ore deposit discharger, 48, cold ore deposit conveying device, 49, middle pressure drum, 50, low-pressure drum.
Detailed description of the invention
Shown in figure, detailed description of the invention is as follows:
Field process control station of the present invention adopts AB1756-L6X as core controller.
The Redundant process control software design that the present invention adopts is CONTROL LOGIX5000 and RS VIEW.
Multiple field control stations that stove cold sinter cogeneration automatic control system comprises, mainly contain transhipment control station, cool furnace control station, waste heat boiler control station and steam turbine control station.Each field control station has multiple switch board, comprises the remote communication module of signal isolated loop, Surge suppression loop, analog input module, thermal resistance signal conversion module, analog output module, On-off signal module, output switch parameter module and redundancy in switch board.Signal isolated loop is used for analog input loop, and the 4-20mA signal entered in cabinet with outside is connected, and shields outside dangerous current potential, effectively ensure that the safety of signal and equipment in cabinet.Surge suppression loop is used for the protection in electric power loop and On-off signal loop in cabinet, effectively prevents the abnormal high potential that outside electric shock and wiring error and induction etc. cause.Telecommunication in field control station adopts redundancy structure, considerably increases the safe coefficient of system communication.
Surge suppression loop is arranged between switch board and large voltage input end, is made up of piezo-resistance and several fuses, and connect fuse respectively in piezo-resistance two ends, large voltage passes into switch board through overcurrent fuse and piezo-resistance successively.
Described fuse is terminal-type fuse, and piezo-resistance is rated voltage 24V direct current, and pressure sensitive voltage is 1mA47V.
According to the characteristic that piezo-resistance resistance value becomes with voltage, by the electric loop of the special combination that fuse and piezo-resistance form.When there being the voltage exceeding piezo-resistance threshold value to enter piezo-resistance, forming short circuit fast, utilizing the fast molten characteristic of fuse, cutting off and invade voltage circuit.
Using this combined loop as stable module, the lane-wise of field process control station is entered according to on-the-spot dangerous voltage and electric power loop invasion high voltage, carry out the selection of this model calling position and method of attachment, only have correct layout link position and method of attachment, signal input module in guarantee cabinet, communication module, and the safety of controller.
The remote communication module 11 of the redundancy of field control station is connected with from redundancy heating exchanger with the main redundant manipulator in switch board by the on-scene communication bus of redundancy, main redundant manipulator and from redundant manipulator synchronous working, ensures undisturbed when switching each other.Main redundant manipulator and carry out remote data transmission between same engineer station, server, Historical archiving server and other controller from the control pole fiberoptic delay that redundant manipulator is connected to redundancy respectively.Utilize an other operation level fiberoptic delay to carry out exchanges data between server and operator station, ensure that operation level equipment and controlled stage equipment are in the different network segments, avoid influencing each other and disturbing of communication.
Hot ore deposit transhipment automatic control system of the present invention mainly controls hot ore deposit transporting velocity.Comprise: take out device, chain board conveying mechanism.Transhipment control station gathers chain scraper conveyor current of electric, the parameters such as rotating speed, after making contrast with the sintering deposit load collected, adjust hot ore deposit transporting velocity, given parameters is outputted to frequency converter, configure of frequency AC Drive has frequency PID controller, thus controls chain scraper conveyor rotating speed in 0.20m/s ~ 0.30m/s change, meets the delivery requirements of sintering deposit under different production status.The running status of whole system, operational factor, uploaded onto the server by controlled stage fiberoptic delay, be uploaded to operator station by operation level fiberoptic delay again to monitor, start stop operation order simultaneously and emergent management order are issued to transhipment control station by operation level fiberoptic delay and controlled stage fiberoptic delay by operator station, export to chain board conveying mechanism.The sintering deposit of general about 700 DEG C is sent in cool furnace and is cooled by chain scraper conveyor:
The take out device of above-mentioned hot ore deposit transhipment automatic control system is provided with each 1 of the limit switch that contact capacity is Ac380V 5A, coordinates control take out device to switch.
Described cool furnace charging automatic control system mainly controls cloth speed.Comprise: cool furnace distributing device, bar type push-pull valve, water-cooling system and lubricating system.Cool furnace distributing device motor adopts frequency converter configuration frequency PID controller, the inhomogeneities that controlled cooling model stove distributing device rotating speed is produced to adapt to sintering deposit.Meanwhile, cool furnace automatic control system gathers the fault message of cool furnace, once break down, closes bar type push-pull valve, seals completely cool furnace fire door.Water-cooling system and lubricating system are furnished with cooling-water temperature sensor, water sensor, level sensor and fuel level sensor, carry out chain control for same cool furnace distributing device.Cool furnace control station Cloth Collection device current of electric, the parameters such as rotating speed, after making contrast with the hot ore deposit transporting velocity of transporting control station, adjustment cloth speed parameter, given parameters is outputted to frequency converter, after the material level limit signal cool furnace control station of cool furnace gathers, as the order of closing bar type push-pull valve simultaneously.All water temperatures, water level and oil level signal upload onto the server 5 by controlled stage fiberoptic delay, be uploaded to operator station by operation level fiberoptic delay again to monitor, start stop operation order simultaneously and emergent management order are issued to transhipment control station by operation level fiberoptic delay and controlled stage fiberoptic delay by operator station, export to cool furnace distributing device.The sintering mineral aggregate of about 700 DEG C that funnel and chute spin out below cool furnace distributing device enters cool furnace to carry out cooling and heat-obtaining:
Described cool furnace automatic control system is mainly to the material level of sintering feed in stove, and pressure and furnace temperature control.Comprise: cool furnace prestores room, cooling chamber, the vibra feeder of below, the air blast of bottom, the air-introduced machine bottom cool furnace, flue and on various valves etc.The cool furnace top, room that prestores is provided with material-level detecting device, builds material level PID controller, according to the level signals collected, regulates frequency and the amplitude of vibra feeder below cool furnace, changes the size of cool furnace load, and then controlled cooling model furnace charge position.Id-motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate the adjustable cooling furnace pressure of rotation speed of fan, cool furnace prestores above room and is provided with pressure sensor, jointly form negative pressure controller with air-introduced machine and fans entrance control valve, ensure to prestore the micro-vacuum state of room at-200Pa.Blower motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate cold blast rate in the adjustable cool furnace of rotation speed of fan, thus adjustment in-furnace temperature, temperature sensor is provided with below vibra feeder, with air blast and the common formation temperature controller of fan outlet two blinds control valves, ensure that the sintering deposit drop temperature of cool furnace controls below 120 DEG C.All signals of cool furnace system, measuring point, operation conditions parameter collected enter in cool furnace control station, carry out after the parameter computing in each loop and control program select, exporting order to field apparatus.Simultaneously, all parameters of cool furnace system are uploaded onto the server by controlled stage fiberoptic delay, be uploaded to operator station by operation level fiberoptic delay again to monitor, start stop operation order and emergent management order are issued to cool furnace control station by operation level fiberoptic delay and controlled stage fiberoptic delay by operator station, export to distributing device.Sintering deposit completes the heat exchange of sintering deposit and cooling-air at cooling chamber, enters in cold ore deposit transhipment operation:
The cool furnace room of prestoring of above-mentioned cool furnace automatic control system is also provided with detection of gas flow rate element, sucks air capacity control valve coordinate adjustment to prestore room siphunculus wind flow for same annular air channel, and then controlled cooling model stove prestores chamber pressure.
Cold ore deposit transhipment automatic control system of the present invention comprises: the mechanical, electrical sub-skin band scale ﹑ hyperthermia radiation meter of belt conveying, overtemperature watering device.Belted electronic balance carries out consecutive weighings to sintering deposit; the deviate of weighing value and setting value feedovers to vibra feeder, ore discharge amount is controlled in stable range of set value, prescribes a time limit when hyperthermia radiation meter detects that sintering deposit temperature exceedes in setting value; start water injector cooling, protection belt feeder.Transhipment control station gathers conveyer electric current, cold ore deposit temperature, the parameters such as cold ore deposit load, and control station is compared in temperature control loop, during overtemperature, exports enabling signal to water injector.Cold ore deposit ore discharge amount is sent into cool furnace control station by network and is gone to control vibra feeder.The parameters such as all electric currents, temperature, yield are uploaded onto the server by controlled stage fiberoptic delay, be uploaded to operator station by operation level fiberoptic delay again to monitor, start stop operation order simultaneously and emergent management order are issued to transhipment control station by operation level fiberoptic delay and controlled stage fiberoptic delay by operator station, export to ribbon conveyer.
The overtemperature watering device of above-mentioned cold ore deposit transhipment automatic control system is configured with pressure transmitter, configuration pressure P ID controller, coordinates for same feed-regulating valve and regulate watering pressure, and then control to export cold ore deposit temperature.
Described waste heat boiler automatic control system comprises: the two pressure boiler of two temperature, boiler feed pipe, feed pump, boiler steam pipe, the equipment compositions such as boiler-steam dome.Feedwater piping establishes flow sensor, jet chimney establishes flow sensor, boiler-steam dome establishes level sensor, adopt water level cas PID control device, water level signal and Setting signal compare, steam flow is as feedforward amount, and PID controller is opened by controlling feed-water valve, for water management waste heat boiler water level in waste heat boiler.Waste heat boiler control station gathers the parameters such as flow, water level, valve position feedback, and waste heat boiler control station is after each control loop compares calculating, and output signal to penstock, thus realizes controlling.The parameters such as all flows, water level, valve position feedback are uploaded onto the server by controlled stage fiberoptic delay, be uploaded to operator station by operation level fiberoptic delay again to monitor, start stop operation order simultaneously and emergent management order are issued to waste heat boiler control station by controlled stage fiberoptic delay and operation level fiberoptic delay by operator station, export to each valve.
The boiler steam pipe of above-mentioned waste heat boiler automatic control system is provided with temperature sensor and spray desuperheating valve, and configuration temperature PID control device, controls spray desuperheating valve opening, and then control vapor (steam) temperature.
Described steam turbine automatic control system comprises: turbine controller, condenser well, and demineralized water control valve mended by condenser, condenser recirculation control valve, the equipment such as condenser pump.Turbine controller gathers steam turbine rotating speed, and the signal such as power and steam pressure composition cas PID control loop, result exports to electric liquid control valve, thus controls the throttle flow of main steam, makes turbine generator system output power be stabilized in set-point.Water in Condenser Well Water Level is higher than setting value, and open condenser pump, the adjustment simultaneously by recycling and mend demineralized water control valve makes Water in Condenser Well Water Level be stabilized in given range.Steam turbine control station gathers pressure, water level, water pump operation state, the parameters such as valve position feedback, and control station is after each control loop compares calculating, and output signal to valve, thus realizes controlling.All pressure, water level, the parameters such as valve position feedback are uploaded onto the server by network, be uploaded to operator station by network again to monitor, start stop operation order simultaneously and emergent management order are issued to steam turbine control station by network with by operator station, export to each valve, motor.
Claims (3)
1. stove cold sinter cogeneration automatic control system, is characterized in that: comprise multiple field control station, hot ore deposit transhipment automatic control system, cool furnace charging automatic control system, cool furnace automatic control system, cold ore deposit transhipment automatic control system, waste heat boiler automatic control system, steam turbine automatic control system, server, operator station;
Described multiple field control stations comprise transhipment control station, cool furnace control station, waste heat boiler control station and steam turbine control station, transhipment control station controls hot ore deposit transhipment automatic control system and cold ore deposit transhipment automatic control system, cool furnace control station controlled cooling model stove charging automatic control system and cool furnace automatic control system, waste heat boiler control station controls waste heat boiler automatic control system, and steam turbine control station controls steam turbine automatic control system;
Described hot ore deposit transhipment automatic control system controls hot ore deposit transporting velocity, and it comprises take out device, chain board conveying mechanism; Transhipment control station gathers current of electric and the rotary speed parameter of chain board conveying mechanism, after making contrast with the sintering deposit load collected, hot ore deposit transporting velocity is adjusted according to comparing result, given parameters is outputted to frequency converter, configure of frequency AC Drive has frequency PID controller, thus control chain scraper conveyor rotating speed in 0.20m/s ~ 0.30m/s change, meet the delivery requirements of sintering deposit under different production status, the sintering deposit of about 650-750 DEG C is sent in cool furnace and is cooled by chain scraper conveyor;
Described cool furnace charging automatic control system controls cloth speed, and it comprises cool furnace distributing device, bar type push-pull valve, water-cooling system and lubricating system, the motor of cool furnace distributing device adopts frequency converter configuration frequency PID controller, the inhomogeneities that controlled cooling model stove distributing device rotating speed is produced to adapt to sintering deposit, cool furnace charging automatic control system gathers the fault message of cool furnace, when breaking down, close bar type push-pull valve, cool furnace fire door is sealed completely, water-cooling system and lubricating system are furnished with cooling-water temperature sensor, water sensor, level sensor and fuel level sensor, chain control is carried out for same cool furnace distributing device, the sintering mineral aggregate of 650-750 DEG C that funnel and chute spin out below cool furnace distributing device enters cool furnace to carry out cooling and heat-obtaining,
Described cool furnace automatic control system controls the material level of sintering feed in cool furnace, pressure and furnace temperature, comprises air-introduced machine, flue and various by-pass valve control thereof that cool furnace prestores bottom vibra feeder below room, cooling chamber, cool furnace, the air blast of bottom, cool furnace, the cool furnace top, room that prestores is provided with material-level detecting device, build material level PID controller, according to the level signals that material-level detecting device collects, regulate frequency and the amplitude of the vibra feeder below cool furnace, change the size of stove load, change and control stove material level, id-motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate the adjustable cooling furnace pressure of rotation speed of fan, cool furnace prestores above room and is provided with pressure sensor, jointly negative pressure controller is formed with air-introduced machine and fans entrance control valve, ensure that cool furnace prestores the micro-vacuum state of room at-200Pa, blower motor configuration frequency converter bottom cool furnace and frequency PID controller, regulate cold blast rate in the adjustable cool furnace of rotation speed of fan, thus adjustment in-furnace temperature, temperature sensor is provided with below vibra feeder, with air blast and the common formation temperature controller of fan outlet two blinds control valves, ensure that the sintering deposit drop temperature of cool furnace controls below 120 DEG C, sintering deposit completes the heat exchange of sintering deposit and cooling-air at cooling chamber, enter in cold ore deposit transhipment operation,
Described cold ore deposit transhipment automatic control system comprises the mechanical, electrical sub-skin band scale ﹑ hyperthermia radiation meter of belt conveying and overtemperature watering device, belted electronic balance carries out consecutive weighings to sintering deposit, the deviate of weighing value and setting value feedovers to vibra feeder, ore discharge amount is controlled in stable range of set value, prescribe a time limit when hyperthermia radiation meter detects that sintering deposit temperature exceedes in setting value, start water injector cooling, protection belt feeder;
Described waste heat boiler automatic control system comprises two temperature two pressure boiler, boiler feed pipe, feed pump, boiler steam pipe, boiler-steam dome, feedwater piping establishes flow sensor, jet chimney establishes flow sensor and boiler-steam dome establishes level sensor, waste heat boiler inner sensor all adopts water level cas PID control device, water level signal and Setting signal compare by waste heat boiler automatic control system, steam flow is as feedforward amount, and water level cas PID control device controls boiler water level by controlling feed-water valve aperture;
Described steam turbine automatic control system comprises turbine controller, condenser well, demineralized water control valve mended by condenser, condenser recirculation control valve and condenser pump, turbine controller gathers steam turbine tach signal, power signal and steam pressure signal composition cas PID control loop, and the signal results collected is exported to condenser benefit water in dust removal control valve, thus control the throttle flow of main steam, turbine generator system output power is made to be stabilized in setting value, Water in Condenser Well Water Level is higher than setting value, open condenser pump, mended the adjustment of demineralized water control valve by condenser recirculation control valve and condenser simultaneously, Water in Condenser Well Water Level is stabilized in setting range.
2. stove cold sinter cogeneration automatic control system as claimed in claim 1, it is characterized in that: described field control station is provided with multiple switch board, in switch board, comprise the remote communication module of signal isolated loop, Surge suppression loop, analog input module, thermal resistance signal conversion module, analog output module, On-off signal module, output switch parameter module and redundancy.
3. stove cold sinter cogeneration automatic control system as claimed in claim 2, it is characterized in that: the remote communication module of the redundancy of described field control station is connected with from redundant manipulator with the main redundant manipulator in switch board by the fieldbus of redundancy, main redundant manipulator and working asynchronously from redundant manipulator, main redundant manipulator and be connected to the controlled stage fiberoptic delay of redundancy respectively from redundant manipulator, same engineer station, server, remote data transmission is carried out between Historical archiving server and other controller, operation level fiberoptic delay is utilized to carry out exchanges data between server and operator station, operation level equipment and controlled stage equipment is made to be in the different network segments.
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| CN105135900A (en) * | 2015-08-12 | 2015-12-09 | 中冶长天国际工程有限责任公司 | Method and device for controlling temperature of outlet of circular cooler |
| CN106203777A (en) * | 2016-06-28 | 2016-12-07 | 武汉凯瑞达通工程设计有限公司 | A kind of engineering information management system |
| CN106766943B (en) * | 2017-01-17 | 2019-04-09 | 华北水利水电大学 | A kind of vertical cooling furnace apparatus of sinter and cooling means |
| CN108571845A (en) * | 2017-03-10 | 2018-09-25 | 深圳市芭田生态工程股份有限公司 | Fertilizer cooling means and system |
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| CN109322714B (en) * | 2018-09-30 | 2021-07-06 | 西安陕鼓动力股份有限公司 | Load control method of steam turbine in variable-frequency rotation-speed-increasing process of SHRT unit |
| CN117556332B (en) * | 2024-01-11 | 2024-03-15 | 北京佰能蓝天科技股份有限公司 | Heating furnace waste heat utilization management method, system and storage medium based on Internet of things |
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| IT1114515B (en) * | 1979-02-05 | 1986-01-27 | Elettrocarbonium Spa | IMPROVEMENT IN THE ADJUSTMENT OF HOFFMANN TYPE CONTINUOUS RING OVENS |
| CN101576348A (en) * | 2008-04-29 | 2009-11-11 | 联合科技(股份有限)公司 | Furnace control system and method thereof |
| CN102012167B (en) * | 2010-10-29 | 2012-11-28 | 南京凯盛开能环保能源有限公司 | System and method for power generating by jointly recovering waste heat of flue gas of sintering machine and exhaust gas of cooling machine |
| CN203259026U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Efficient sintering ore waste heat recovery and electricity generation device with griddle |
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