CN101121200B - Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method - Google Patents
Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method Download PDFInfo
- Publication number
- CN101121200B CN101121200B CN2007101319739A CN200710131973A CN101121200B CN 101121200 B CN101121200 B CN 101121200B CN 2007101319739 A CN2007101319739 A CN 2007101319739A CN 200710131973 A CN200710131973 A CN 200710131973A CN 101121200 B CN101121200 B CN 101121200B
- Authority
- CN
- China
- Prior art keywords
- temperature
- circuit
- dust concentration
- valve
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature. The present invention also discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature; the present invention can ensure the sufficient burning of fuel and the heating quality of the ladle; the present invention can thoroughly remove the defect that the smoke and dust will pollute the environment and the energy-saving effect is obvious.
Description
Technical field
The device that the present invention relates to a kind of automatic observing and controlling method of roasting heat accumulating type ladle and be used for this method, it both had been applicable to the baking steel ladle, was applicable to the baking tundish again.
Background technology
Baking steel ladle and tundish all are the flow that adopts artificial fuel metering of hand-operated valve and combustion air usually at present, the color that the ladle lid is observed furnace lining is normally opened in the monitoring of baking temperature, also have and use disposable thermocouple temperature measurement, in bake process, the ratio of fuel and combustion air generally is the color of artificially observing stack gases, then strengthens the flow of combustion air as finding over-emitting black exhaust; Baking ladle and tundish all do not have storage heater usually at present, and high-temperature gas directly enters atmosphere by flue in the ladle.As seen there is following shortcoming in traditional apparatus for baking: 1, temperature monitoring and Flow-rate adjustment are inaccurate in the bake process, influence baking quality; 2, can not guarantee the rational proportion of fuel and combustion air,, not only waste fuel if the too low then fuel of combustion air ratio can not fully burn, and flue over-emitting black exhaust atmosphere pollution, if the too high then heat waste of combustion air ratio is big, not only wastes heat energy, and can reduce baking temperature; 3, stack gases temperature height, waste heat is not used, and not only wastes heat energy, and diminishes air quality; 4, the operative employee is required height, work load is heavy.
Summary of the invention
The device that the invention provides a kind of automatic observing and controlling method of roasting heat accumulating type ladle and be used for this method, it can guarantee the abundant burning of fuel and the baking quality of ladle, can thoroughly effect a radical cure the drawback of dust polluting environment, effects of energy saving and emission reduction is obvious.
The present invention is by the following technical solutions: a kind of automatic observing and controlling method of roasting heat accumulating type ladle, and it comprises ladle liner temperature automatic observing and controlling method, stack gases dust concentration automatic observing and controlling method and stack gases temperature automatic observing and controlling method:
Described ladle liner temperature automatic observing and controlling method is a temperature of measuring ladle liner by the temperature sensor I of ladle liner temperature automatic measurement and control device, then the ladle liner temperature analog signal that records is sent among the intelligent temperature controller I, carry out converting ladle liner temperature digital signal to by the A/D conversion circuit I again after the linearization process through the linearization process circuit I, setting value in this ladle liner temperature digital signal and the temperature setting circuit compares and obtains ladle liner temperature digital control signal, the digital-analog conversion circuit I of ladle liner temperature digital control signal process intelligent temperature controller I converts the fuel flow rate analog control signal to and delivers to the intelligent electric adjusting air valve of ladle liner temperature automatic measurement and control device or the flow that intelligent electric adjusting fuel tap comes automatic fuel metering gas of difference or fuel oil, ladle liner temperature digital signal after the process linearization process is also sent into alarm temperature control circuit and the ladle liner temperature digital display circuit of intelligent temperature controller I simultaneously respectively, then reports to the police when the ladle liner temperature surpasses the alarm temperature setting value; Described stack gases dust concentration automatic observing and controlling method is the dust concentration analog signal that detects waste gas in the flue by the photoelectric sensor of stack gases dust concentration automatic measurement and control device, the stack gases dust concentration analog signal that records is sent in the intelligent dust concentration measurement and control instrument of dust concentration automatic measurement and control device, through converting stack gases dust concentration data signal to by A/D conversion circuit I I after the linearization process circuit I I linearization process, the setting value of this stack gases dust concentration data signal and dust concentration control circuit obtains stack gases dust concentration digital controlled signal after relatively, convert stack gases dust concentration digital controlled signal to the combustion air flow analog control signal through the digital-analog conversion circuit I I of intelligent dust concentration measurement and control instrument and deliver to the flow that the intelligent electric control valve II of stack gases dust concentration automatic measurement and control device regulates the combustion air in the spray burner automatically, process linearization process rear pass exhaust gas and smoke concentration data signal is sent into the dust concentration warning circuit and the dust concentration digital display circuit of dust concentration measurement and control instrument simultaneously again respectively, then reports to the police when the dust concentration in the flue surpasses the warning concentration set point;
Described stack gases temperature automatic observing and controlling method is the temperature that detects waste gas in the flue by the temperature sensor II of stack gases temperature automatic measurement and control device, the stack gases temperature analog signal that records is delivered among the intelligent temperature controller II of stack gases temperature automatic measurement and control device, convert stack gases temperature digital signal to by A/D conversion circuit I II again after the linearization process through linearization process circuit I II, obtain stack gases temperature control figure signal after the desired temperature of this stack gases temperature digital signal and design temperature control circuit II compared, convert the commutation cycle analog control signal to through digital-analog conversion circuit I II again and deliver to intermittently square wave signal generator, intermittently the width of square-wave signal and intermittent time equate, intermittently the cycle of square-wave signal is subjected to the control of commutation cycle analog control signal, intermittently square-wave signal drives two-position five-way solenoid directional control valve discontinuous operation, during no signal, the two-position five-way solenoid directional control valve is by spring reset, when signal, intermittently square-wave signal drives the work of two-position five-way solenoid directional control valve, compressed air in the solenoid directional control valve promotes air-leg by flexible tracheae, air-leg drives the high temperature reversal valve by toggle, the low temperature reversal valve is realized automatic reverse, the length of its commutation cycle was decided by the cycle of square-wave signal at intermittence, and intermittently the cycle of square-wave signal is subjected to the control of intelligent temperature controller II output signal, by height, the commutation of low temperature reversal valve, make the interior high-temperature gas of ladle carry out accumulation of heat to the heat storage among storage heater I and the storage heater II in turn, the normal temperature combustion air obtains preheating in turn in storage heater I and storage heater II simultaneously, waste gas after the accumulation of heat is discharged from flue, its EGT is adjusted to setting value, combustion air after the preheating enters in the spray burner and participates in the combustion-supporting of fuel, anti-material and liner obtain baking in the ladle in spray combustion process, stack gases alarm temperature control circuit III and stack gases temperature digital display circuit I II that process linearization process stack gases temperature digital signal is also sent into intelligent temperature controller III simultaneously respectively then report to the police when the stack gases temperature surpasses temperature flue alarm temperature setting value.
The employed fuel of described spray burner can be pure gas fuel or single liquid fuel, also can be gaseous fuel and liquid fuel mixing use.Be provided with the PLC circuit among the described intelligent temperature controller I, both can realize by the PLC circuit that digital-analog conversion circuit I, intelligent electric among different fuel and the intelligent temperature controller I regulated air valve or intelligent electric is regulated being connected of fuel tap, also can realize being connected of different time periods and different set temperature.
The present invention also provides a kind of automatic measurement and control device of roasting heat accumulating type ladle, it comprises ladle liner temperature automatic measurement and control device, stack gases dust concentration automatic measurement and control device and stack gases temperature automatic measurement and control device, described ladle liner temperature automatic measurement and control device comprises temperature sensor I, intelligent temperature controller I, intelligent electric control valve I and electric horn, temperature sensor I is set to thermocouple I, intelligent electric control valve I comprises that intelligent electric is regulated fuel tap and intelligent electric is regulated air valve, insert in the ladle liner in the hot junction of thermocouple I, its cold junction is connected with the signal input part of intelligent temperature controller I by compensating wire I, intelligent temperature controller I mainly comprises fuel selection circuit, ladle liner temperature digital display circuit, the linearization process circuit I, the stoving time initialization circuit, temperature setting circuit, the alarm temperature initialization circuit, design temperature control circuit I, the alarm temperature control circuit, the digital-analog conversion circuit I, A/D conversion circuit I and PLC control circuit, temperature sensor I is connected with the input of linearization process circuit I, the output of linearization process circuit I is connected with the input of A/D conversion circuit I, the output of A/D conversion circuit I is divided into three the tunnel, the first via successively with design temperature control circuit I, the digital-analog conversion circuit I connects, the output of digital-analog conversion circuit I regulates fuel tap with corresponding intelligent electric respectively or intelligent electric adjusting air valve is connected, the second the tunnel is connected with electric horn with the alarm temperature control circuit successively, and Third Road is connected with ladle liner temperature digital display circuit; Fuel selects circuit to be connected with intelligent electric adjusting air valve by PLC control circuit and intelligent electric adjusting fuel tap, fuel selects circuit also to be connected with the digital-analog conversion circuit I by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit I, the stoving time initialization circuit is connected with the alarm temperature initialization circuit with temperature setting circuit by the PLC control circuit, temperature setting circuit and alarm temperature initialization circuit are respectively by PLC control circuit and ladle liner temperature digital display circuit I, the design temperature control circuit is connected with the alarm temperature control circuit, the valve body import that intelligent electric is regulated fuel tap is connected with the fuel oil hydraulic power source by the PLC control circuit, its valve outlet is connected by the fuel oil flange I of the spray burner that flowmeter I and ladle cover, the valve body import that intelligent electric is regulated air valve is connected with the fuel gas pneumatic supply by the PLC control circuit, and its valve outlet is connected with the combustion gas flange II of spray burner by flowmeter II;
Described stack gases dust concentration automatic measurement and control device comprises photoelectric sensor, the dust concentration measurement and control instrument, flue and intelligent electric control valve II, radially be provided with the detection hole in both sides along flue, detect in the hole and be provided with the flue dust protective cover, described photoelectric sensor is provided with emitting head and receives head, they are positioned at the flue dust protective cover, inner side end at two protective covers is provided with quartz glass plate, the dust concentration measurement and control instrument mainly comprises linearization process circuit I I, A/D conversion circuit I I, the dust concentration control circuit, the dust concentration warning circuit, dust concentration digital display circuit, digital-analog conversion circuit I I and PLC control circuit, photoelectric sensor receives head and is connected with linearization process circuit I I input, the output of linearization process circuit I I is connected with the input of A/D conversion circuit I I, the output of A/D conversion circuit I I is divided into three the tunnel, one the tunnel is connected with the dust concentration control circuit, the dust concentration control circuit is connected with digital-analog conversion circuit I I, digital-analog conversion circuit I I is connected with intelligent electric control valve II's, the valve body import of intelligent electric control valve II is connected with compressed air reservoir by gas tank, the valve outlet of intelligent electric control valve II is connected with low temperature reversal valve F port in the stack gases temperature automatic measurement and control device by the appendix of flowmeter III, the second the tunnel is connected with the acousto-optic alarm buzzer with the dust concentration warning circuit successively, Third Road is connected with dust concentration digital display circuit, the fuel of ladle liner temperature automatic measurement and control device selects circuit also to be connected with digital-analog conversion circuit I I in the dust concentration measurement and control instrument by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit;
Described stack gases temperature automatic measurement and control device mainly comprises temperature sensor II and intelligent temperature controller II, electric bell, square wave signal generator intermittently, the two-position five-way solenoid directional control valve, toggle, the high temperature reversal valve, the low temperature reversal valve, storage heater I, storage heater II, air-leg and flexible tracheae, temperature sensor II also is set to thermocouple II, ladle covers and is provided with storage heater I and storage heater II, be provided with heat storage in storage heater I and the storage heater II, the cylinder body lower end of air-leg and ladle cover to be and are rotationally connected, its piston rod and toggle are rotationally connected, toggle respectively be fixed on the height that ladle covers, the valve shaft of low temperature reversal valve is fixedly connected.The high temperature reversal valve is symmetrically distributed with A, B, C, four ports of D, the intracavity inter-connection of A port and ladle wherein, B mouth and D mouth are connected with the II port of storage heater I and storage heater II respectively, the C mouth is connected with the combustion air flange III of spray burner, the low temperature reversal valve is symmetrically distributed with E, F, G, four ports of H, wherein F port and H port are connected with the I port of two storage heaters, the E port also is connected with the appendix of the flowmeter of stack gases dust concentration automatic measurement and control device, the G port is connected with flue, the hot junction of described thermocouple II is positioned at flue, the cold junction of thermocouple II is connected with the signal input part of intelligent temperature controller II by compensating wire II, intelligent temperature controller II mainly comprises linearization process circuit I II, A/D conversion circuit I II, stack gases temperature digital display circuit I II, alarm temperature control circuit III, design temperature control circuit III and digital-analog conversion circuit I II, temperature sensor II is connected with the input of linearization process circuit I II, the output of linearization process circuit I II is connected with the input of A/D conversion circuit I II, the output of A/D conversion circuit I II is divided into three the tunnel, one the tunnel successively with design temperature control circuit III, the input of digital-analog conversion circuit and square wave signal generator at intermittence, intermittently the output of square wave signal generator is connected with the coil of two-position five-way solenoid directional control valve, the pneumatic supply inlet of two-position five-way electromagnetic switch valve body is connected with air compressor air storage tank by gas tank, valve outlet is connected with the cylinder of air-leg by flexible hose, the second the tunnel is connected with electric bell with alarm temperature control circuit III successively, and Third Road is connected with temperature digital display circuit I II.
Described stack gases temperature automatic measurement and control device is provided with the dust concentration means for anti-jamming, the dust concentration means for anti-jamming comprises two gas blowout heads, electromagnetic gas valve, intermittent signal generator, oil water separator, two gas blowout heads distribute axisymmetricly, angle between the air-flow jet face of two gas blowout heads and the plane of quartz glass plate is acute angle, the valve body import of electromagnetic gas valve is connected with gas tank by oil water separator, valve outlet is connected with two gas blowout heads by flowmeter IV, and the coil of electromagnetic gas valve is connected with intermittent signal generator.The valve plate angle of rotation of described high temperature reversal valve and low temperature reversal valve is 90 ℃.
The present invention has following beneficial effect: (1) ladle baking quality height: the baking of ladle liner temperature automatic measuring and controlling system ladle is carried out automatically by the program that sets in advance; The time length of this program day part and baking temperature just are provided with according to field condition (as refractory material kind, thickness, ladleful etc.), the detection of intelligent temperature controller and control accuracy height, can prevent that the phenomenon that baking is saturating or baking overdoes from appearring in ladle, so can prolong the ladle service life after the baking; (2) energy-saving and emission-reduction, the protection environment: stack gases concentration automatic measuring and controlling system can be guaranteed the reasonable mixture ratio of fuel and combustion air, guarantee full combustion of fuel, thereby stop over-emitting black exhaust in the ladle baking process, the storage heater of stack gases temperature automatic measuring and controlling system and commutation cycle thereof the temperature that can reduce stack gases to greatest extent is set, the stack gases afterheat utilization not only can improve the baking temperature of ladle, cut down the consumption of energy, and can improve the burning quality of fuel in ladle, stack gases temperature automatic measuring and controlling system can make the waste heat of stack gases be fully used in addition, has reduced the discharging of high-temperature gas; (3) labour intensity reduces: observing and controlling precision height of the present invention, adjustment process is carried out automatically, is provided with autoalarm simultaneously, thereby has alleviated working strength of workers greatly, has reduced the requirement to the craftsmanship, and is easy to use.(4) working stability is reliable, the measuring accuracy height: ladle liner temperature automatic measuring and controlling system of the present invention is provided with intelligent temperature controller I and PLC control circuit, stack gases dust concentration automatic measuring and controlling system and is provided with dust concentration controller and dust concentration means for anti-jamming and stack gases temperature automatic measuring and controlling system and is provided with intelligent temperature controller II, can make three system works stable like this, the measuring accuracy height.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation at A place among Fig. 1
Fig. 3 is the structural representation at B place among Fig. 2
The specific embodiment
The present invention is a kind of automatic observing and controlling method of roasting heat accumulating type ladle, it is characterized in that it comprises ladle liner temperature automatic observing and controlling method, stack gases dust concentration automatic observing and controlling method and stack gases temperature automatic observing and controlling method: described ladle liner temperature automatic observing and controlling method is a temperature of measuring ladle liner 1 by the temperature sensor I2 of ladle liner temperature automatic measurement and control device, then the ladle liner temperature analog signal that records is sent among the intelligent temperature controller I4, carry out converting ladle liner temperature digital signal to by the A/D conversion circuit I again after the linearization process through the linearization process circuit I, setting value in this ladle liner temperature digital signal and the temperature setting circuit compares and obtains ladle liner temperature digital control signal, the digital-analog conversion circuit I of ladle liner temperature digital control signal process intelligent temperature controller I4 converts the fuel flow rate analog control signal to and delivers to the flow that the intelligent electric of ladle liner temperature automatic measurement and control device is regulated air valve 9 or intelligent electric adjusting fuel tap 12 automatic fuel metering gas of difference or fuel oil, also send into alarm temperature control circuit and the ladle liner temperature digital display circuit of intelligent temperature controller I4 simultaneously respectively through the ladle liner temperature digital signal after the linearization process, when surpassing the alarm temperature setting value, ladle liner 1 temperature then reports to the police, be provided with the PLC circuit among the intelligent temperature controller I4, both can realize digital-analog conversion circuit I among different fuel and the intelligent temperature controller I4 by the PLC circuit, intelligent electric is regulated the connection that air valve 9 or intelligent electric are regulated fuel tap 12, also can realize being connected of different time periods and different set temperature; Described stack gases dust concentration automatic observing and controlling method is the dust concentration analog signal that detects waste gas in the flue by the photoelectric sensor of stack gases dust concentration automatic measurement and control device, the stack gases dust concentration analog signal that records is sent in the intelligent dust concentration measurement and control instrument 18 of dust concentration automatic measurement and control device, through converting stack gases dust concentration data signal to by A/D conversion circuit I I after the linearization process circuit I I linearization process, the setting value of this stack gases dust concentration data signal and dust concentration control circuit obtains stack gases dust concentration digital controlled signal after relatively, convert stack gases dust concentration digital controlled signal to the combustion air flow analog control signal through the digital-analog conversion circuit I I of intelligent dust concentration measurement and control instrument 18 and deliver to the flow that the intelligent electric control valve II21 of stack gases dust concentration automatic measurement and control device regulates the combustion air in the spray burner 7 automatically, process linearization process rear pass exhaust gas and smoke concentration data signal is sent into the dust concentration warning circuit and the dust concentration digital display circuit of dust concentration measurement and control instrument 18 simultaneously again respectively, then reports to the police when the dust concentration in the flue surpasses the warning concentration set point; Described stack gases temperature automatic observing and controlling method is the temperature that detects waste gas in the flue by the temperature sensor II28 of stack gases temperature automatic measurement and control device, the stack gases temperature analog signal that records is delivered among the intelligent temperature controller II31 of stack gases temperature automatic measurement and control device, convert stack gases temperature digital signal to by A/D conversion circuit I II again after the linearization process through linearization process circuit I II, obtain stack gases temperature control figure signal after the desired temperature of this stack gases temperature digital signal and design temperature control circuit II compared, convert the commutation cycle analog control signal to through digital-analog conversion circuit I II again and deliver to intermittently square wave signal generator 32, intermittently the width of square-wave signal and intermittent time equate, intermittently the cycle of square-wave signal is subjected to the control of commutation cycle analog control signal, intermittently square-wave signal drives two-position five-way solenoid directional control valve 34 discontinuous operations, during no signal, two-position five-way solenoid directional control valve 34 is by spring reset, when signal, intermittently square-wave signal drives 34 work of two-position five-way solenoid directional control valve, compressed air in the solenoid directional control valve 34 promotes air-leg 37 by flexible tracheae 35, air-leg 37 drives high temperature reversal valve 38 by toggle 39, low temperature reversal valve 41 is realized automatic reverse, the length of its commutation cycle was decided by the cycle of square-wave signal at intermittence, and intermittently the cycle of square-wave signal is subjected to the control of intelligent temperature controller II31 output signal, by height, low temperature reversal valve 38,41 commutation, make the interior high-temperature gas 36 of ladle carry out accumulation of heat to the heat storage among storage heater I30 and the storage heater II40 in turn, the normal temperature combustion air obtains preheating in turn in storage heater I30 and storage heater II40 simultaneously, waste gas after the accumulation of heat is discharged from flue 14, its EGT is adjusted to setting value, combustion air after the preheating enters in the spray burner 7 and participates in the combustion-supporting of fuel, anti-material and liner obtain baking in the ladle in spray combustion process, also send into stack gases alarm temperature control circuit III and the stack gases temperature digital display circuit I II of intelligent temperature controller III31 simultaneously respectively through linearization process stack gases temperature digital signal, when surpassing temperature flue alarm temperature setting value, the stack gases temperature then reports to the police, the employed fuel of spray burner (7) can be pure gas fuel or single liquid fuel, also can be gaseous fuel and liquid fuel mixing use.
The present invention also provides a kind of automatic measurement and control device of roasting heat accumulating type ladle, it comprises ladle liner temperature automatic measurement and control device, stack gases dust concentration automatic measurement and control device and stack gases temperature automatic measurement and control device, described ladle liner temperature automatic measurement and control device comprises temperature sensor I2, intelligent temperature controller I4, intelligent electric control valve I and electric horn 13, temperature sensor I2 is set to thermocouple I, intelligent electric control valve I comprises that intelligent electric is regulated fuel tap 12 and intelligent electric is regulated air valve 9, insert in the ladle liner 1 in the hot junction of thermocouple I, its cold junction is connected with the signal input part of intelligent temperature controller I4 by compensating wire I3, intelligent temperature controller I4 mainly comprises fuel selection circuit, ladle liner temperature digital display circuit, the linearization process circuit I, the stoving time initialization circuit, temperature setting circuit, the alarm temperature initialization circuit, design temperature control circuit I, the alarm temperature control circuit, the digital-analog conversion circuit I, A/D conversion circuit I and PLC control circuit, temperature sensor I2 is connected with the input of linearization process circuit I, the output of linearization process circuit I is connected with the input of A/D conversion circuit I, the output of A/D conversion circuit I is divided into three the tunnel, the first via successively with design temperature control circuit I, the digital-analog conversion circuit I connects, the output of digital-analog conversion circuit I regulates fuel tap 12 with corresponding intelligent electric respectively or intelligent electric adjusting air valve 9 is connected, the second the tunnel is connected with electric horn 13 with the alarm temperature control circuit successively, and Third Road is connected with ladle liner temperature digital display circuit; Fuel selects circuit to be connected with intelligent electric adjusting air valve 9 by PLC control circuit and intelligent electric adjusting fuel tap 12, fuel selects circuit also to be connected with the digital-analog conversion circuit I by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit I, the stoving time initialization circuit is connected with the alarm temperature initialization circuit with temperature setting circuit by the PLC control circuit, temperature setting circuit and alarm temperature initialization circuit are respectively by PLC control circuit and ladle liner temperature digital display circuit I, the design temperature control circuit is connected with the alarm temperature control circuit, the valve body import that intelligent electric is regulated fuel tap 12 is connected with fuel oil hydraulic power source 11 by the PLC control circuit, its valve outlet is connected by the fuel oil flange I of the spray burner 7 that flowmeter I5 and ladle cover, the valve body import that intelligent electric is regulated air valve 9 is connected with fuel gas pneumatic supply 10 by the PLC control circuit, and its valve outlet is connected with the combustion gas flange II of spray burner 7 by flowmeter II8;
Described stack gases dust concentration automatic measurement and control device comprises photoelectric sensor, dust concentration measurement and control instrument 18, flue 14 and intelligent electric control valve II21, radially be provided with the detection hole in both sides along flue 14, detect in the hole and be provided with the flue dust protective cover, described photoelectric sensor is provided with emitting head 27 and receives 17, they are positioned at the flue dust protective cover, inner side end at two protective covers is provided with quartz glass plate 16, dust concentration measurement and control instrument 18 mainly comprises linearization process circuit I I, A/D conversion circuit I I, the dust concentration control circuit, the dust concentration warning circuit, dust concentration digital display circuit, digital-analog conversion circuit I I and PLC control circuit, photoelectric sensor receives 17 and is connected with linearization process circuit I I input, the output of linearization process circuit I I is connected with the input of A/D conversion circuit I I, the output of A/D conversion circuit I I is divided into three the tunnel, one the tunnel is connected with the dust concentration control circuit, the dust concentration control circuit is connected with digital-analog conversion circuit I I, digital-analog conversion circuit I I is connected with intelligent electric control valve II21's, the valve body import of intelligent electric control valve II21 is connected with compressed air reservoir 6 by gas tank 22, the valve outlet of intelligent electric control valve II21 is connected with low temperature reversal valve F port in the stack gases temperature automatic measurement and control device by the appendix of flowmeter III20, the second the tunnel is connected with acousto-optic alarm buzzer 19 with the dust concentration warning circuit successively, Third Road is connected with dust concentration digital display circuit, the fuel of ladle liner temperature automatic measurement and control device selects circuit also to be connected with digital-analog conversion circuit I I in the dust concentration measurement and control instrument 18 by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit;
Described stack gases temperature automatic measurement and control device mainly comprises temperature sensor II28 and intelligent temperature controller II31, electric bell 33, square wave signal generator 32 intermittently, two-position five-way solenoid directional control valve 34, toggle 39, high temperature reversal valve 38, low temperature reversal valve 41, storage heater I30, storage heater II40, air-leg 37 and flexible tracheae 35, temperature sensor II28 also is set to thermocouple II, ladle covers and is provided with storage heater I30 and storage heater II40, be provided with heat storage in storage heater I30 and the storage heater II40, the cylinder body lower end of air-leg 37 and ladle cover to be and are rotationally connected, its piston rod and toggle 39 are rotationally connected, toggle 39 respectively be fixed on the height that ladle covers, low temperature reversal valve 38,41 valve shaft is fixedly connected, and the valve plate angle of rotation of high temperature reversal valve 38 and low temperature reversal valve 41 is 90 ℃.High temperature reversal valve 38 is symmetrically distributed with A, B, C, four ports of D, the intracavity inter-connection of A port and ladle wherein, B mouth and D mouth are connected with the II port of storage heater I30 and storage heater II40 respectively, the C mouth is connected with the combustion air flange III of spray burner 7, low temperature reversal valve 41 is symmetrically distributed with E, F, G, four ports of H, wherein F port and H port and two storage heaters 30,40 I port is connected, the E port also is connected with the appendix of the flowmeter 20 of stack gases dust concentration automatic measurement and control device, the G port is connected with flue 14, the hot junction of described thermocouple II is positioned at flue 14, the cold junction of thermocouple II is connected with the signal input part of intelligent temperature controller II31 by compensating wire II29, intelligent temperature controller II31 mainly comprises linearization process circuit I II, A/D conversion circuit I II, stack gases temperature digital display circuit I II, alarm temperature control circuit III, design temperature control circuit III and digital-analog conversion circuit I II, temperature sensor II is connected with the input of linearization process circuit I II, the output of linearization process circuit I II is connected with the input of A/D conversion circuit I II, the output of A/D conversion circuit I II is divided into three the tunnel, one the tunnel successively with design temperature control circuit III, the input of digital-analog conversion circuit and square wave signal generator 32 at intermittence, intermittently the output of square wave signal generator 32 is connected with the coil of two-position five-way solenoid directional control valve 34, the pneumatic supply inlet of two-position five-way solenoid directional control valve 34 valve bodies is connected with air compressor air storage tank 6 by gas tank 22, valve outlet is connected with the cylinder of air-leg by flexible hose 35, the second the tunnel is connected with electric bell 33 with alarm temperature control circuit III successively, Third Road is connected with temperature digital display circuit I II, stack gases temperature automatic measurement and control device is provided with the dust concentration means for anti-jamming, the dust concentration means for anti-jamming comprises two gas blowouts 15, electromagnetic gas valve 24, intermittent signal generator 25, oil water separator 23, two gas blowouts, 15 distribution axisymmetricly, angle between the air-flow jet face of two gas blowouts 15 and the plane of quartz glass plate 16 is acute angle, the valve body import of electromagnetic gas valve 24 is connected with gas tank 22 by oil water separator 23, valve outlet is connected by flowmeter IV26 and two gas blowouts 15, and the coil of electromagnetic gas valve 24 is connected with intermittent signal generator 25.。
The present invention includes detection and the adjusting of fuel flow rate, the detection of stack gases concentration and adjusting and the detection of stack gases temperature and the automatic observing and controlling method and the automatic measurement and control device thereof of three automatic control systems of the adjusting of storage heater commutation cycle of combustion air flow of lining temperature, these three systems form an existing division of labor, and it is unified whole to be mutually related again.
The course of work that the ladle liner temperature is controlled automatically is as follows: the temperature sensor I2 in the ladle liner 1 sends the ladle liner temperature analog signal that records into intelligent temperature controller I4 signal input part, in intelligent temperature controller I4, the ladle liner temperature analog signal is converted to ladle liner temperature digital signal by the A/D conversion circuit I after linearisation treatment circuit I linearization process, ladle liner temperature digital signal is delivered in the temperature setting circuit of intelligent temperature controller I4 this ladle liner temperature digital signal compared with setting value and is obtained ladle liner temperature digital control signal, this ladle liner temperature digital control signal converts the fuel flow rate analog signal to by the digital-analog conversion circuit I and delivers to the control signal input that intelligent electric is regulated air valve 9 or intelligent electric adjusting fuel tap 12, its valve opening is changed, thereby make and deliver to the spray liquid fuel of burner 7 or the flow of gaseous fuel changes along with the actual temperature of ladle liner 1, its spray burner 7 can carry out oil-gas two-way, can use single-fuel also can use two kinds of fuel simultaneously, the ladle liner temperature analog signal is delivered to simultaneously alarm temperature control circuit and ladle liner temperature digital display circuit again respectively being transformed into ladle liner temperature digital signal after linearization process, when meeting or exceeding the alarm temperature setting value, then report to the police, the alarm temperature setting value is higher than the baking design temperature, for this reason, intelligent temperature controller I4 is provided with fuel and selects, the control temperature is set and alarm temperature is set button, and according to different heat output of fuel different characteristics, different gears at the fuel selector button are provided with different number-Mo-number signal conversion software, fuel is selected can be by identical heating stepping different conditions wherein, fuel regulates fuel tap 12 by different execution units and intelligent electric or intelligent electric adjusting air valve 9 is connected, this software is connected after the digital controlled signal of temperature control comparison circuit, simultaneously, the software setting of drying by the fire in the time-temperature curve of copying ladle also pre-sets, adopt the PLC circuit to realize that different time period sets being connected of corresponding fiducial value in different baking temperature values and the comparison circuit at last, as seen, realize the flow-control of time-temperature curve control and realization different fuel, come down to the PLC process of control automatically, the parameter of time-temperature curve has the concrete size of ladle, capacity decides by following and provides an embodiment as a reference: when baking design temperature during in room temperature-400 ℃, its baking setting-up time is 2-3 hour, the baking design temperature 400 ℃-800 o'clock, its baking setting-up time is 2 hours, the baking design temperature is in the time of 800 ℃-1000 ℃, the baking setting-up time is 1 hour, can avoid fierce contraction of refractory material to crack like this.
The stack gases dust concentration automatically course of work of control is as follows: the infrared light of emitting head 27 emissions of photoelectric sensor produces corresponding stack gases dust concentration analog signal after being radiated at and receiving on 17, the power of this stack gases dust concentration analog signal is relevant with the dust concentration of waste gas in the flue 14, this stack gases dust concentration analog signal is sent to the signal input part of intelligent dust concentration measurement and control instrument 18, in intelligent dust concentration measurement and control instrument 18, the detected stack gases dust concentration of photoelectric sensor analog signal converts stack gases dust concentration data signal to by A/D conversion circuit I I after linearisation treatment circuit II carries out linearization process, this stack gases dust concentration data signal is sent into the dust concentration control circuit, in the dust concentration control circuit, this stack gases dust concentration data signal and the stack gases dust concentration digital controlled signal that obtains after setting value is compared, stack gases dust concentration digital controlled signal converts the control signal input of combustion air flow analog control signal input intelligent electric control valve II21 to through digital-analog conversion circuit I I, and the valve body import of intelligent electric control valve II21 is connected with compressed air storage tank 22, the outlet of valve body is connected with the flange of spray burner 7 behind flowmeter III20 and air preheating system, when AIR Proportional is on the low side in the spray burner 7, fuel can not fully burn, dust concentration in the high-temperature gas of spray burner 7 ejections rises even over-emitting black exhaust, high-temperature gas is at height, low temperature reversal valve 38, under 41 the control, enter atmosphere by flue 14 after taking turns flow through storage heater I30 and storage heater II40 accumulation of heat, detect the dust concentration rising that the photoelectric sensor in the hole records at flue 14, it receives 17 signal of telecommunication that record and reduces, under the control of dust concentration measurement and control instrument 18, the aperture of executive component intelligent electric control valve II21 increases, combustion air leads to the flow increase of hold over system and spray burner 7 in the compressed air reservoir 6, the fuel of spray burner 7 is fully burned, make the dust concentration that is discharged into the stack gases in the atmosphere be adjusted to setting value, process linearization process rear pass exhaust gas and smoke concentration data signal is sent into the dust concentration warning circuit and the dust concentration digital display circuit of dust concentration measurement and control instrument 18 simultaneously again respectively, then reports to the police when the dust concentration in the flue surpasses the warning concentration set point.
The course of work that the stack gases temperature is controlled automatically is as follows: the temperature of detected flue 14 waste gas of the temperature sensor II28 in the flue 14, the stack gases temperature analog signal is delivered to intelligent temperature controller II31 signal input part, in intelligent temperature controller II31, the stack gases temperature analog signal is transformed into stack gases temperature digital signal by A/D conversion circuit I II after linearisation treatment circuit III carries out linearization process, this stack gases temperature digital signal is delivered to temperature digital display circuit I II respectively, alarm temperature control circuit III and design temperature control circuit III, in design temperature control circuit III, this stack gases temperature digital signal and the temperature digital control signal that obtains after the setting value of design temperature control circuit III is compared, deliver to intermittently square wave signal generator 32 after converting the commutation cycle analog control signal to by digital-analog conversion circuit I II again, intermittently the width of square wave signal generator 32 and intermittent time equate, intermittently the square-wave signal cycle is subjected to the control of commutation cycle analog control signal, intermittently the output of square wave signal generator 32 is connected with the coil of two-position five-way solenoid directional control valve 34, two-position five-way solenoid directional control valve 34 adopts spring reset, pneumatic supply is connected with the cylinder body of air-leg 37 by its valve body and flexible tracheae 35, the piston rod of air-leg 37 drives high by toggle 39, low temperature reversal valve 38,41 valve utmost point turning cylinders rotate, the valve plate angle of rotation of two reversal valves is 90 °, when the temperature of stack gases is higher than design temperature, intermittently the signal frequency of square wave signal generator 32 uprises, two-position five-way solenoid directional control valve 34, air-leg 37, the commutation cycle of high temperature reversal valve 38 and low temperature reversal valve 41 shortens, the amount of stored heat of storage heater I30 and storage heater II40 increases, thereby makes the stack gases temperature drop to setting value.When the temperature of stack gases is lower than design temperature, the signal frequency step-down of square wave signal generator 32 intermittently, the commutation cycle of two-position five-way solenoid directional control valve 34, air-leg 37, high temperature reversal valve 38 and low temperature reversal valve 41 is elongated, storage heater I30 and storage heater II40 amount of stored heat reduce, thereby make the stack gases temperature rise to setting value.
Be provided with heat storage in storage heater I30 and the storage heater II40, storage heater I30 and storage heater II40 take turns " accumulation of heat " and " preheating " by reversal valve, the process of accumulation of heat is that high-temperature gas is connected storage heater I30 and storage heater II40 in turn by the A port of high temperature reversal valve 38 in the ladle, waste heat in the high-temperature gas 36 is absorbed by the heat storage among storage heater I30 and the storage heater II40 in turn, and enter atmosphere again after entering flue 14 by low temperature reversal valve 41 in turn, " preheating " process is the normal temperature combustion air after stack gases dust concentration automaton is regulated, A port by low temperature reversal valve 41 enters storage heater I30 and storage heater II40 in turn, the heat that stores in the heat storage in storage heater I30 and storage heater II40 obtains discharging, make the combustion-supporting control that enters storage heater I30 and storage heater II40 obtain preheating, the combustion air that is preheated is participated in the combustion-supporting of fuel by the A mouth that high temperature reversal valve 38 enters spray burner 7 in turn, the heat energy that fuel produces after fully burning in ladle makes ladle obtain baking, and makes ladle liner 1 intensification by the time-temperature curve of setting.
Claims (6)
1. the automatic observing and controlling method of a roasting heat accumulating type ladle is characterized in that it comprises ladle liner temperature automatic observing and controlling method, stack gases dust concentration automatic observing and controlling method and stack gases temperature automatic observing and controlling method:
Described ladle liner temperature automatic observing and controlling method is a temperature of measuring ladle liner (1) by the temperature sensor I (2) of ladle liner temperature automatic measurement and control device, then the ladle liner temperature analog signal that records is sent among the intelligent temperature controller I (4), carry out converting ladle liner temperature digital signal to by the A/D conversion circuit I again after the linearization process through the linearization process circuit I, setting value in this ladle liner temperature digital signal and the temperature setting circuit compares and obtains ladle liner temperature digital control signal, the digital-analog conversion circuit I of ladle liner temperature digital control signal process intelligent temperature controller I (4) converts the fuel flow rate analog control signal to and delivers to the intelligent electric adjusting air valve (9) of ladle liner temperature automatic measurement and control device or the flow that intelligent electric adjusting fuel tap (12) comes automatic fuel metering gas of difference or fuel oil, ladle liner temperature digital signal after the process linearization process is also sent into alarm temperature control circuit and the ladle liner temperature digital display circuit of intelligent temperature controller I (4) simultaneously respectively, then reports to the police when ladle liner (1) temperature surpasses the alarm temperature setting value;
Described stack gases dust concentration automatic observing and controlling method is the dust concentration analog signal that detects waste gas in the flue by the photoelectric sensor of stack gases dust concentration automatic measurement and control device, the stack gases dust concentration analog signal that records is sent in the intelligent dust concentration measurement and control instrument (18) of dust concentration automatic measurement and control device, through converting stack gases dust concentration data signal to by A/D conversion circuit I I after the linearization process circuit I I linearization process, the setting value of this stack gases dust concentration data signal and dust concentration control circuit obtains stack gases dust concentration digital controlled signal after relatively, convert stack gases dust concentration digital controlled signal to the combustion air flow analog control signal through the digital-analog conversion circuit I I of intelligent dust concentration measurement and control instrument (18) and deliver to the flow that the intelligent electric control valve II (21) of stack gases dust concentration automatic measurement and control device regulates the combustion air in the spray burner (7) automatically, process linearization process rear pass exhaust gas and smoke concentration data signal is sent into the dust concentration warning circuit and the dust concentration digital display circuit of dust concentration measurement and control instrument (18) simultaneously again respectively, then reports to the police when the dust concentration in the flue surpasses the warning concentration set point;
Described stack gases temperature automatic observing and controlling method is the temperature that detects waste gas in the flue by the temperature sensor II (28) of stack gases temperature automatic measurement and control device, the stack gases temperature analog signal that records is delivered among the intelligent temperature controller II (31) of stack gases temperature automatic measurement and control device, convert stack gases temperature digital signal to by A/D conversion circuit I II again after the linearization process through linearization process circuit I II, obtain stack gases temperature control figure signal after the desired temperature of this stack gases temperature digital signal and design temperature control circuit II compared, convert the commutation cycle analog control signal to through digital-analog conversion circuit I II again and deliver to intermittently square wave signal generator (32), intermittently the width of square-wave signal and intermittent time equate, intermittently the cycle of square-wave signal is subjected to the control of commutation cycle analog control signal, intermittently square-wave signal drives two-position five-way solenoid directional control valve (34) discontinuous operation, during no signal, two-position five-way solenoid directional control valve (34) is by spring reset, when signal, intermittently square-wave signal drives two-position five-way solenoid directional control valve (34) work, compressed air in the solenoid directional control valve (34) promotes air-leg (37) by flexible tracheae (35), air-leg (37) drives high temperature reversal valve (38) by toggle (39), low temperature reversal valve (41) is realized automatic reverse, the length of its commutation cycle was decided by the cycle of square-wave signal at intermittence, and intermittently the cycle of square-wave signal is subjected to the control of intelligent temperature controller II (31) output signal, by height, the commutation of low temperature reversal valve (38.41), make the interior high-temperature gas (36) of ladle carry out accumulation of heat to the heat storage among storage heater I (30) and the storage heater II (40) in turn, the normal temperature combustion air obtains preheating in turn in storage heater I (30) and storage heater II (40) simultaneously, waste gas after the accumulation of heat is discharged from flue (14), its EGT is adjusted to setting value, combustion air after the preheating enters and participates in the combustion-supporting of fuel in the spray burner (7), anti-material and liner obtain baking in the ladle in spray combustion process, stack gases alarm temperature control circuit III and stack gases temperature digital display circuit I II that process linearization process stack gases temperature digital signal is also sent into intelligent temperature controller III (31) simultaneously respectively then report to the police when the stack gases temperature surpasses temperature flue alarm temperature setting value.
2. the automatic observing and controlling method of roasting heat accumulating type ladle according to claim 1 is characterized in that the employed fuel of described spray burner (7) is pure gas fuel or single liquid fuel, perhaps is that gaseous fuel and liquid fuel mix use.
3. the automatic observing and controlling method of roasting heat accumulating type ladle according to claim 1, be provided with the PLC circuit in it is characterized in that among the intelligent temperature controller I (4), both can realize by the PLC circuit that digital-analog conversion circuit I, intelligent electric among different fuel and the intelligent temperature controller I (4) regulated air valve (9) or intelligent electric is regulated being connected of fuel tap (12), also can realize being connected of different time periods and different set temperature.
4. the automatic measurement and control device of a roasting heat accumulating type ladle, it is characterized in that it comprises ladle liner temperature automatic measurement and control device, stack gases dust concentration automatic measurement and control device and stack gases temperature automatic measurement and control device, described ladle liner temperature automatic measurement and control device comprises temperature sensor I (2), intelligent temperature controller I (4), intelligent electric control valve I and electric horn (13), temperature sensor I (2) is set to thermocouple I, intelligent electric control valve I comprises that intelligent electric is regulated fuel tap (12) and intelligent electric is regulated air valve (9), insert in the ladle liner (1) in the hot junction of thermocouple I, its cold junction is connected with the signal input part of intelligent temperature controller I (4) by compensating wire I (3), intelligent temperature controller I (4) mainly comprises fuel selection circuit, ladle liner temperature digital display circuit, the linearization process circuit I, the stoving time initialization circuit, temperature setting circuit, the alarm temperature initialization circuit, design temperature control circuit I, the alarm temperature control circuit, several mode transducer circuit I, A/D conversion circuit I and PLC control circuit, temperature sensor I (2) is connected with the input of linearization process circuit I, the output of linearization process circuit I is connected with the input of A/D conversion circuit I, the output of A/D conversion circuit I is divided into three the tunnel, the first via successively with design temperature control circuit I, the digital-analog conversion circuit I connects, the output of digital-analog conversion circuit I regulates fuel tap (12) with corresponding intelligent electric respectively or intelligent electric adjusting air valve (9) is connected, the second the tunnel is connected with electric horn (13) with the alarm temperature control circuit successively, and Third Road is connected with ladle liner temperature digital display circuit; Fuel selects circuit to be connected with intelligent electric adjusting air valve (9) by PLC control circuit and intelligent electric adjusting fuel tap (12), fuel selects circuit also to be connected with the digital-analog conversion circuit I by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit I, the stoving time initialization circuit is connected with the alarm temperature initialization circuit with temperature setting circuit by the PLC control circuit, temperature setting circuit and alarm temperature initialization circuit are respectively by PLC control circuit and ladle liner temperature digital display circuit I, the design temperature control circuit is connected with the alarm temperature control circuit, the valve body import that intelligent electric is regulated fuel tap (12) is connected with fuel oil hydraulic power source (11) by the PLC control circuit, its valve outlet is connected by the fuel oil flange I of the spray burner (7) that flowmeter I (5) and ladle cover, the valve body import that intelligent electric is regulated air valve (9) is connected with fuel gas pneumatic supply (10) by the PLC control circuit, and its valve outlet is connected with the combustion gas flange II of spray burner (7) by flowmeter II (8);
Described stack gases dust concentration automatic measurement and control device comprises photoelectric sensor, dust concentration measurement and control instrument (18), flue (14) and intelligent electric control valve II (21), radially be provided with the detection hole in both sides along flue (14), detect in the hole and be provided with the flue dust protective cover, described photoelectric sensor is provided with emitting head (27) and receives head (17), they are positioned at the flue dust protective cover, inner side end at two protective covers is provided with quartz glass plate (16), dust concentration measurement and control instrument (18) mainly comprises linearization process circuit I I, A/D conversion circuit I I, the dust concentration control circuit, the dust concentration warning circuit, dust concentration digital display circuit, digital-analog conversion circuit I I and PLC control circuit, photoelectric sensor receives head (17) and is connected with linearization process circuit I I input, the output of linearization process circuit I I is connected with the input of A/D conversion circuit I I, the output of A/D conversion circuit I I is divided into three the tunnel, one the tunnel is connected with the dust concentration control circuit, the dust concentration control circuit is connected with digital-analog conversion circuit I I, digital-analog conversion circuit I I is connected with intelligent electric control valve II (21), the valve body import of intelligent electric control valve II (21) is connected with compressed air reservoir (6) by gas tank (22), the valve outlet of intelligent electric control valve II (21) is connected with low temperature reversal valve F port in the stack gases temperature automatic measurement and control device by the appendix of flowmeter III (20), the second the tunnel is connected with acousto-optic alarm buzzer (19) with the dust concentration warning circuit successively, Third Road is connected with dust concentration digital display circuit, the fuel of ladle liner temperature automatic measurement and control device selects circuit also to be connected with digital-analog conversion circuit I I in the dust concentration measurement and control instrument (18) by the PLC control circuit, the caloric value of this fuel is sent in the conversion software of this translation circuit;
Described stack gases temperature automatic measurement and control device mainly comprises temperature sensor II (28) and intelligent temperature controller II (31), electric bell (33), square wave signal generator (32) intermittently, two-position five-way solenoid directional control valve (34), toggle (39), high temperature reversal valve (38), low temperature reversal valve (41), storage heater I (30), storage heater II (40), air-leg (37) and flexible tracheae (35), temperature sensor II (28) also is set to thermocouple II, ladle covers and is provided with storage heater I (30) and storage heater II (40), be provided with heat storage in storage heater I (30) and the storage heater II (40), the cylinder body lower end of air-leg (37) and ladle cover to be and are rotationally connected, its piston rod and toggle (39) are rotationally connected, toggle (39) respectively be fixed on the height that ladle covers, low temperature reversal valve (38,41) valve shaft is fixedly connected, high temperature reversal valve (38) is symmetrically distributed with A, B, C, four ports of D, the intracavity inter-connection of A port and ladle wherein, B mouth and D mouth are connected with the II port of storage heater I (30) and storage heater II (40) respectively, the C mouth is connected with the combustion air flange III of spray burner (7), low temperature reversal valve (41) is symmetrically distributed with E, F, G, four ports of H, wherein F port and H port and two storage heaters (30,40) I port is connected, the E port also is connected with the appendix of the flowmeter (20) of stack gases dust concentration automatic measurement and control device, the G port is connected with flue (14), the hot junction of described thermocouple II is positioned at flue (14), the cold junction of thermocouple II is connected with the signal input part of intelligent temperature controller II (31) by compensating wire II (29), intelligent temperature controller II (31) mainly comprises linearization process circuit I II, A/D conversion circuit I II, stack gases temperature digital display circuit I II, alarm temperature control circuit III, design temperature control circuit III and digital-analog conversion circuit I II, temperature sensor II is connected with the input of linearization process circuit I II, the output of linearization process circuit I II is connected with the input of A/D conversion circuit I II, the output of A/D conversion circuit I II is divided into three the tunnel, one the tunnel successively with design temperature control circuit III, the input of digital-analog conversion circuit and square wave signal generator at intermittence (32), intermittently the output of square wave signal generator (32) is connected with the coil of two-position five-way solenoid directional control valve (34), the pneumatic supply inlet of two-position five-way solenoid directional control valve (34) valve body is connected with air compressor air storage tank (6) by gas tank (22), valve outlet is connected with the cylinder of air-leg by flexible hose (35), the second the tunnel is connected with electric bell (33) with alarm temperature control circuit III successively, and Third Road is connected with temperature digital display circuit I II.
5. the automatic measurement and control device of roasting heat accumulating type ladle according to claim 3, it is characterized in that described stack gases temperature automatic measurement and control device is provided with the dust concentration means for anti-jamming, the dust concentration means for anti-jamming comprises two gas blowout heads (15), electromagnetic gas valve (24), intermittent signal generator (25), oil water separator (23), two gas blowout heads (15) distribute axisymmetricly, angle between the plane of the air-flow jet face of two gas blowout heads (15) and quartz glass plate (16) is acute angle, the valve body import of electromagnetic gas valve (24) is connected with gas tank (22) by oil water separator (23), valve outlet is connected with two gas blowout heads (15) by flowmeter IV (26), and the coil of electromagnetic gas valve (24) is connected with intermittent signal generator (25).
6. the automatic measurement and control device of roasting heat accumulating type ladle according to claim 3 is characterized in that the valve plate angle of rotation of described high temperature reversal valve (38) and low temperature reversal valve (41) is 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101319739A CN101121200B (en) | 2007-09-25 | 2007-09-25 | Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101319739A CN101121200B (en) | 2007-09-25 | 2007-09-25 | Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101121200A CN101121200A (en) | 2008-02-13 |
| CN101121200B true CN101121200B (en) | 2011-01-19 |
Family
ID=39083810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101319739A Expired - Fee Related CN101121200B (en) | 2007-09-25 | 2007-09-25 | Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101121200B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004511B (en) * | 2010-11-11 | 2012-07-25 | 上海安可科技有限公司 | Medium and small flow rate calibration control method for controlling ladle baking |
| CN106091714A (en) * | 2015-12-04 | 2016-11-09 | 韩山师范学院 | A kind of kiln monitoring system |
| CN106940317A (en) * | 2016-01-02 | 2017-07-11 | 廖宝闰 | It is a kind of to detect whether tube surfaces have the equipment in hole |
| CN108723345A (en) * | 2017-04-24 | 2018-11-02 | 宝山钢铁股份有限公司 | A kind of continuous casting production baking quality monitoring device and its control method |
| CN108535172B (en) * | 2018-03-28 | 2021-03-16 | 广东电网有限责任公司广州供电局 | Thermal aging test device and thermal aging test method |
| CN111221280A (en) * | 2019-11-30 | 2020-06-02 | 张家港宏昌钢板有限公司 | Tundish refractory material flow mode baking operation control system and operation method thereof |
| CN111123829A (en) * | 2020-01-14 | 2020-05-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Efficient heat storage baking method for steel ladle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102064Y (en) * | 2007-09-25 | 2008-08-20 | 江苏兴利来特钢有限公司 | Automatic observing and controlling apparatus of baking and heat accumulating type ladle |
-
2007
- 2007-09-25 CN CN2007101319739A patent/CN101121200B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102064Y (en) * | 2007-09-25 | 2008-08-20 | 江苏兴利来特钢有限公司 | Automatic observing and controlling apparatus of baking and heat accumulating type ladle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101121200A (en) | 2008-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101121200B (en) | Automatic observing and controlling method for roasting heat accumulating type steel ladle and the device using the method | |
| CN201102064Y (en) | Automatic observing and controlling apparatus of baking and heat accumulating type ladle | |
| CN103256719B (en) | Furnace condition optimizing and monitoring device and method using same for optimizing | |
| CN101329110B (en) | Full-automatic control system of oil field heating furnace | |
| CN103982911B (en) | Segmented ceramic kiln fuel gas and air linkage control system | |
| CN200941000Y (en) | Heat-retaining and burning car-type heating furnace | |
| CN2906705Y (en) | Intelligent steam-injection boiler monitoring and control system | |
| CN102444910A (en) | Combustion control system | |
| CN107066657B (en) | Coal mill outlet temperature optimization energy-saving effect evaluation method and device | |
| CN102519041A (en) | Numerical control gas burner | |
| CN103836642B (en) | A kind of gas furnace many burners pulse burning control technique method | |
| CN101575667A (en) | Experimental device and method for iron ore pellet roasting process | |
| CN202330328U (en) | Combustion control system for building element fire-resistance test furnace | |
| CN202432546U (en) | Combustion control system | |
| CN202216277U (en) | Automatic control device for a combustor type industrial boiler | |
| CN205605852U (en) | Homogeneity knuckle can smoke damper plate structure | |
| CN104390354A (en) | Temperature accurate control device and method of oilfield negative-pressure heating furnace | |
| CN204665692U (en) | A kind of bio-fuel air heating furnace intelligence control system | |
| CN202382234U (en) | Automatic temperature-control combustor | |
| CN103727527A (en) | High-power practical gas catalytic combustion kiln | |
| CN203656971U (en) | Residual oxygen analytic combustion control device of hot blast stove | |
| CN201749349U (en) | Control system for industrial fuel annealing furnace | |
| CN201331085Y (en) | Independent adjusting device of gas and combustion-supporting air for burner nozzle of annular sleeve kiln | |
| CN104630403A (en) | Combustion control method and combustion control system of top-combustion type hot-blast stove | |
| CN107726847B (en) | It is a kind of for calcining the temperature intelligent adjusting method of stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20120925 |