CN205362945U - Sheet slab flame spray gun cutting height control system - Google Patents
Sheet slab flame spray gun cutting height control system Download PDFInfo
- Publication number
- CN205362945U CN205362945U CN201620132989.6U CN201620132989U CN205362945U CN 205362945 U CN205362945 U CN 205362945U CN 201620132989 U CN201620132989 U CN 201620132989U CN 205362945 U CN205362945 U CN 205362945U
- Authority
- CN
- China
- Prior art keywords
- flame
- cavity
- resorption
- epicoele
- spray gun
- 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.)
- Withdrawn - After Issue
Links
Abstract
Sheet slab flame spray gun cutting height control system includes cutting machine track, flame cutting machine, sets up flame cut dolly and spray gun on flame cutting machine, and it still includes the pneumatic cylinder of installing on the flame cut dolly, camera and the process control system who is used for shooing spray gun and spray gun flame, the application method of this system does: utilize the camera to gather distance between flame spray gun spout to the flame temperature peak in real time, the perpendicular distance of mid point position on the casting blank thickness direction carries out the comparison with the flame spray gun spout, reciprocate by computer control piston flame spray gun according to the comparative result and adjust, ensure between flame spray gun spout to the flame temperature peak that distance and the flame spray gun spout perpendicular distance of mid point position on the casting blank thickness direction equals in real time, the high temperature part of guaranteeing make full use of flame spray gun foreign cigarette heats the slab, reach and promote sheet slab cutting quality, stabilize the mesh of continuous casting production rhythm, and can reduce site work personnel's intensity of labour by a wide margin.
Description
Technical field
This utility model provides a kind of sheet slab flame gun cutting-height to control system, belongs to continuous casting and produces control equipment technical field.
Background technology
At present, flame cutting mode is that in continuous casting production process, cutting thickness is unique economy of more than 60mm sheet slab, effective means.Effectively implement flame cutting technology it is crucial that guarantees that the metal near strand joint-cutting can be quickly heated to the burning-point of iron and steel, and this Temperature Distribution with gas flame is closely bound up.Flame is divided into flame envelope, internal flame, three parts of flame core, by the combustion no impact being substantially oxidized of mass-energy, cause the temperature of flame envelope > temperature of internal flame > temperature of flame core, therefore, in the process of flame cutting, if able to slab metal is heated by the high-temperature area making full use of flame envelope, it becomes possible to make slab metal be rapidly heated to the burning-point of iron and steel, so that slab cuts rapidly, smoothly completes；Otherwise, if utilizing the internal flame of flame or flame core that slab metal is heated, then slab metal will not be able to be rapidly heated to the burning-point of iron and steel, so, being smoothed out of flame cutting process can be hindered on the one hand, make slab can not be cut within the limited time, and then upset the rhythm that whole continuous casting produces, the metal surface near sheet slab joint-cutting can be made smooth not on the other hand, and then have influence on the surface quality of finish to gauge product；Additionally, the utilization rate of combustion gas also can be reduced, increase the consumption of combustion gas, and then increase the cost of continuous casting working procedure.
Flame gun spout is to the vertical dimension of steel slab surface, also referred to as flame gun cutting-height.If the above analysis is it can be seen that think that efficiency utilizes flame flame envelope that slab metal is heated substantially, it is necessary to accurately adjust flame gun cutting-height, make the distance that the size of this height is exactly between current time spray gun spout and flame flame envelope high-temperature area.For meeting above-mentioned condition; traditional method on-the-spot at present is the cutting-height manually adjusting flame gun; that is: before continuous casting produces; field personnel first passes through naked eyes off-line and observes the length of flame; and the actual effect of flame cutting before combining; on manual adjustments Cutting dolly, spray gun spout is to the vertical dimension of strand live-roller, so that it is guaranteed that flame gun cutting-height is equal with the spacing of flame flame envelope high-temperature area with spray gun spout.But this method also exists following shortcoming: (1), utilize manual mode to regulate the purpose that the cutting-height of flame gun obtained can only reach roughly to utilize gas flame flame envelope that slab metal is heated, and cannot accurately realize；(2), by the impact of the external factor such as the supply pressure of gaseous fuel and purity, gas flame flame envelope length in production process can often change, and traditional manual adjustments mode cannot adjust the cutting-height of flame gun in time according to the change of flame flame envelope length, thus having influence on the actual cutting effect of slab；(3), under traditional approach, field personnel need each water time produce before according on a flame cutting effect watered time, the cutting-height of flame gun is adjusted, therefore labor intensity is bigger.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of sheet slab flame gun cutting-height and controls system, can in real time, automatically, accurately adjust flame gun cutting-height, realize making full use of the purpose that slab metal is heated by flame flame envelope, solve background technology defect.
The technical scheme solving above-mentioned technical problem is:
Sheet slab flame gun cutting-height controls system, including cutter rail, flame cutting machine, the flame cutting trolley being arranged on flame cutting machine and spray gun, its improvements are: pneumatic cylinder that it also includes being installed on flame cutting trolley, for shooting camera and the Process Control System of spray gun and torch flame；
Described spray gun is piston type flame gun；Piston type flame gun is assemblied in pneumatic cylinder and pneumatic cylinder is divided into epicoele and cavity of resorption, and epicoele connects with epicoele air inlet pipe and epicoele escape pipe respectively, epicoele air inlet pipe and be respectively mounted epicoele solenoid valve and epicoele electromagnetic switch valve on epicoele escape pipe；Cavity of resorption connects with cavity of resorption air inlet pipe and cavity of resorption escape pipe respectively, cavity of resorption air inlet pipe and be respectively mounted cavity of resorption solenoid valve and cavity of resorption electromagnetic switch valve on cavity of resorption escape pipe；Epicoele and cavity of resorption are separately installed with upper cavity pressure sensor and cavity of resorption pressure transducer；Epicoele is also equipped with displacement transducer；
Described Process Control System include computer, respectively be connected with computer carry out the camera data capture card of data communication, epicoele solenoid valve PLC, cavity of resorption solenoid valve PLC, epicoele electromagnetic switch valve PLC, cavity of resorption electromagnetic switch valve PLC, pneumatic cylinder information feedback PLC, flame cutting machine start position switch and flame cutting trolley start position switch；Upper and lower chamber solenoid valve PLC is connected with upper and lower chamber solenoid valve respectively；Upper and lower chamber electromagnetic switch valve PLC is connected with upper and lower chamber electromagnetic switch valve respectively；Described flame cutting machine start position switch is arranged on cutter rail, is positioned at original position during cutting torches slab；Described flame cutting trolley start position switch is arranged on cutting machine, is positioned at original position during flame cutting trolley cutting slab；Pneumatic cylinder information feedback PLC is connected with pneumatic cylinder upper cavity pressure sensor, cavity of resorption pressure transducer and displacement transducer, flame cutting machine start position switch, flame cutting trolley start position switch simultaneously.
Above-mentioned sheet slab flame gun cutting-height controls system, and the epicoele of described pneumatic cylinder and cavity of resorption are also equipped with epicoele overflow valve and cavity of resorption overflow valve；Described camera is CCD color camera, is fixed on by support and switchs as the center of circle with flame cutting machine start position, and radius is 10m～20m place, it is ensured that CCD color camera can completely shoot the flame height of flame gun and ejection；Described epicoele escape pipe and cavity of resorption escape pipe are provided with drainage screen away from the one end being connected with pneumatic cylinder.
Using method of the present utility model comprises the steps of
Step 1: manual-lock epicoele solenoid valve, cavity of resorption solenoid valve, epicoele electromagnetic switch valve and cavity of resorption electromagnetic switch valve, and control flame cutting machine and original position when flame cutting trolley is separately operable cutting slab；
Step 2: manually the mode of operation of computer is adjusted to " open and water front control " pattern, then performs following operation:
(1), manually controlling the mode of computer, flame gun is shot by operation camera；Associated picture is sent to computer by camera data capture card after completing shooting by camera automatically, and manual measurement goes out the length L of flame gun on this imageRifle figure；
(2), manual measurement goes out the initial time flame gun spout vertical dimension L to conveying roller upper surface summitInitiallyPhysical length L with flame gunRifle；
Step 3: the flame gun obtained length L on image will be measuredRifle figure, flame gun physical length LInitiallyInformation input computer, computer according to similarity principle, by plug-in, can calculate length ratio coefficient B automatically, it may be assumed that
In formula: LRifle figureFor the length of flame gun on image, unit: mm；
LRifleFor the physical length of flame gun, unit: mm；
Vertical dimension L by initial time flame gun spout to conveying roller upper surface summitInitiallyBe input in computer with slab thickness H information, computer can pass through plug-in automatically calculate current time flame gun spout to slab thickness direction the vertical dimension of point midwayThat is:
In formula:For the vertical dimension of point midway, unit: mm on current time flame gun spout to slab thickness direction；
LInitiallyFor the vertical dimension of initial time flame gun spout to conveying roller upper surface summit, unit: mm；
H is slab thickness, unit: mm；
Then, computer is automatically by the vertical dimension of point midway on current time flame gun spout to slab thickness directionIt is defined as zero distance；
Step 4: after formally watering steel, is manually adjusted to " open and control after watering " pattern by the mode of operation of computer；Trigger flame cutting machine start position switch and flame cutting trolley start position switch respectively when flame cutting machine and flame cutting trolley after, flame cutting machine start position switch and flame cutting trolley start position switch feed back PLC by pneumatic cylinder information and send feedback signal to computer respectively, computer starts camera automatically, and control the flame that flame gun ejects by camera and shoot, and image is sent back computer by camera data capture card；
Step 5: after captured image is analyzed by computer automatically, draws the flame temperature peak vertical dimension to flame gun spout, and concrete grammar is:
(1), the brightness of each pixel of image is automatically analyzed by computer by plug-in, and after the brightness drawing each pixel, normalized is done in the brightness of pixel each on whole image, using pixel that brightness after normalization is 0.99～1.0 as starting point, automatic vertical upwards searches pixel that brightness is 0～0.01 as terminating point again, then automatically measures the vertical dimension L between 2Flame figure；Measuring method is: utilize the plug-in of computer, first all pixel quantity n in vertical direction are accumulated between two pixels, then according to the intrinsic vertical dimension Δ L between adjacent two pixels, calculate the vertical dimension between the pixel that normalization brightness is 0.99～1.0 and the pixel that normalization brightness is 0～0.01, it may be assumed that
LFlame figure=Δ L (n-1)
In formula: LFlame figureFor the vertical dimension between pixel and the pixel that normalization brightness is 0～0.01 that normalization brightness is 0.99～1.0, unit: mm；
Δ L is the intrinsic distance between adjacent two pixels, unit: mm；
N is normalization brightness is all pixel quantity in vertical direction between the pixel of 0.99～1.0 and the pixel that normalization brightness is 0～0.01；
(2), computer in conjunction with the length ratio coefficient B obtained in step 3, according to similarity principle, calculate the flame temperature peak actual vertical dimension L to flame gun spoutFlame, it may be assumed that
LFlame=LFlame figure·B
In formula: LFlameFor the actual vertical dimension of flame temperature peak to flame gun spout, unit: mm；
LFlame figureFor brightness after normalization respectively 0.99～1.0 and 0～0.01 two pixels between distance, unit: mm；
B is length ratio coefficient；
Step 6: computer is to the flame temperature peak vertical dimension L to flame gun spoutFlameWith the vertical dimension of point midway on current time flame gun spout to slab thickness directionCompare, calculate the difference L of the two, it may be assumed that
In formula: LFlameFor the flame temperature peak vertical dimension to flame gun spout, unit: mm；
For the vertical dimension of point midway, unit: mm on current time flame gun spout to slab thickness direction；
L is LFlameWithBetween difference, mm；
Step 7: the result of calculation according to step 6, the descending operation of computer automatic execution flame gun, concrete grammar is:
(1), as L > 0, it was shown that: flame temperature peak is to the vertical dimension L of flame gun spoutFlameMore than current time flame gun spout to the vertical dimension of point midway along slab thickness directionFlame gun needs to move up；Now, computer chamber solenoid valve PLC separately down and epicoele solenoid valve PLC sends instruction, opens cavity of resorption solenoid valve, closes epicoele solenoid valve；Instruction is sent to epicoele electromagnetic switch valve PLC and cavity of resorption electromagnetic switch valve PLC, open epicoele electromagnetic switch valve, close cavity of resorption electromagnetic switch valve, now, flame gun will move up, then computer is with 10ms～20ms numerical value fed back for cycle monitoring displacement transducer, when this numerical value is equal to L, then computer can send instruction by downward chamber solenoid valve PLC and epicoele electromagnetic switch valve PLC simultaneously, cavity of resorption solenoid valve and epicoele electromagnetic switch valve are closed, guarantee that flame gun is in this position transfixion, thus completing the adjustment work of flame gun cutting-height；
(2), as L < 0, it was shown that flame temperature peak is to the vertical dimension L of flame gun spoutFlameLess than current time flame gun spout to the vertical dimension of point midway along slab thickness directionFlame gun needs to move down；Now, computer sends instruction to epicoele solenoid valve PLC and cavity of resorption solenoid valve PLC respectively, opens epicoele solenoid valve, closes cavity of resorption solenoid valve；Instruction is sent to cavity of resorption electromagnetic switch valve PLC and epicoele electromagnetic switch valve PLC, open cavity of resorption electromagnetic switch valve, close epicoele electromagnetic switch valve, now, flame gun will move down, then computer is with 10ms～20ms numerical value fed back for cycle monitoring displacement transducer, when this numerical value is equal to L, then the while of computer meeting, upwards chamber solenoid valve PLC and cavity of resorption electromagnetic switch valve PLC sends instruction, epicoele solenoid valve and cavity of resorption electromagnetic switch valve are closed, guarantee that flame gun is in this position transfixion, thus completing the adjustment work of flame gun cutting-height；
(3), when computer performed flame gun cutting-height adjustment operation after, can automatically update current time flame gun spout to slab thickness direction the vertical dimension of point midwayIt is equal to flame temperature peak that this measurement the obtain vertical dimension L to flame gun spoutFlame, it may be assumed thatAnd by the vertical dimension of point midway on current time flame gun spout to slab thickness directionIt is newly defined as zero distance, thus the adjustment for flame gun cutting-height next time lays the first stone；
Step 8: when completing to water after steel produces, its mode of operation can be adjusted to " hold and water front control " pattern by computer automatically, and it is automatically switched off epicoele solenoid valve, cavity of resorption solenoid valve, epicoele electromagnetic switch valve and cavity of resorption electromagnetic switch valve, automatically continuous casting is stopped before watering the flame gun spout of last record simultaneously to the vertical dimension of point midway on slab thickness directionIt is defined as zero distance, then according to the production schedule, is ready for step 4 and operates；Or the needs according to actual production, again from step 2, carry out measurement again and computer typing to the relevant parameter that the present invention is used in operation, further according to the production schedule, complete the operation of subsequent step.
The beneficial effects of the utility model are:
This utility model can according to the real-time change of the supply pressure of gas on-site fuel and purity, in real time, the flame gun spout vertical dimension to steel slab surface is accurately adjusted, ensure that the requirement that slab is heated by the proposed high-temperature part utilizing flame flame envelope in production scene, reach to promote the purpose of sheet slab cut quality, stabilizing continuous casting rhythm of production, and the labor intensity of field personnel can be greatly reduced；The gas pressure of timely detected air pressure cylinder epicoele and lower intracavity is easy in the setting of upper cavity pressure sensor and cavity of resorption pressure transducer, it is to avoid bigger fluctuation occurs in gas pressure；Pneumatic cylinder can effectively be protected by epicoele overflow valve and cavity of resorption overflow valve, it is to avoid cause the damage to pneumatic cylinder cavity because gas pressure is excessive；Drainage screen effect is to prevent the impurity in air from entering in pneumatic cylinder, it is to avoid pneumatic cylinder and associated conduit are damaged by the impurity in air or blocking.This utility model is for improving slab cut quality, and stabilizing continuous casting rhythm of production plays vital effect, has significant economic benefit, in industry has great popularizing value.
Accompanying drawing explanation
Fig. 1 is pneumatic cylinder and spray gun structure schematic diagram；
Fig. 2 is pneumatic cylinder, spray gun, cutting machine, Cutting dolly and camera connection diagram；
Fig. 3 is Process Control System schematic diagram；
nullFigure is labeled as: pneumatic cylinder 1、Flame gun 2、Epicoele air inlet pipe 3、Epicoele escape pipe 4、Epicoele solenoid valve 5、Epicoele electromagnetic switch valve 6、Cavity of resorption air inlet pipe 7、Cavity of resorption escape pipe 8、Cavity of resorption solenoid valve 9、Cavity of resorption electromagnetic switch valve 10、Upper cavity pressure sensor 11、Cavity of resorption pressure transducer 12、Epicoele overflow valve 13、Cavity of resorption overflow valve 14、Displacement transducer 15、Drainage screen 16、Camera 17、Computer 18、Camera data capture card 19、Epicoele solenoid valve PLC20、Cavity of resorption solenoid valve PLC21、Epicoele electromagnetic switch valve PLC22、Cavity of resorption electromagnetic switch valve PLC23、Pneumatic cylinder information feedback PLC24、Flame cutting machine start position switch 25、Flame cutting trolley start position switch 26、Flame cutting machine 27、Flame cutting trolley 28、Cutter rail 29、Camera support 30.
Detailed description of the invention
Fig. 1～Fig. 3 shows, this utility model sheet slab flame gun cutting-height control system, including cutter rail 29, flame cutting machine 27, the flame cutting trolley 28 being arranged on flame cutting machine 27, the pneumatic cylinder 1 being installed on flame cutting trolley 28, piston type flame gun 2, for shooting camera 17 and the Process Control System of spray gun 2 and torch flame；Piston type flame gun 2 is assemblied in pneumatic cylinder 1 and pneumatic cylinder 1 is divided into epicoele and cavity of resorption, and epicoele connects with epicoele air inlet pipe 3 and epicoele escape pipe 4 respectively, epicoele air inlet pipe 3 and be respectively mounted epicoele solenoid valve 5 and epicoele electromagnetic switch valve 6 on epicoele escape pipe 4；Cavity of resorption connects with cavity of resorption air inlet pipe 7 and cavity of resorption escape pipe 8 respectively, cavity of resorption air inlet pipe 7 and be respectively mounted cavity of resorption solenoid valve 9 and cavity of resorption electromagnetic switch valve 10 on cavity of resorption escape pipe 8；Epicoele is provided with upper cavity pressure sensor 11 and epicoele overflow valve 13, and cavity of resorption is provided with cavity of resorption pressure transducer 12 and cavity of resorption overflow valve 14；Pressure transducer is easy to the gas pressure in timely detected air pressure cylinder 1, it is to avoid bigger fluctuation occurs in gas pressure；Overflow valve effect is protection pneumatic cylinder 1, it is to avoid cause the damage to pneumatic cylinder 1 cavity because gas pressure is excessive；Epicoele is also equipped with displacement transducer 15, for recording the displacement of piston；Epicoele escape pipe 4 and cavity of resorption escape pipe 8 are provided with drainage screen 16 away from the one end being connected with pneumatic cylinder 1, and its effect is to prevent the impurity in air from entering in pneumatic cylinder 1, it is to avoid pneumatic cylinder 1 and associated conduit are damaged by the impurity in air or blocking.
Process Control System include computer 18, respectively be connected with computer 18 carry out the camera data capture card 19 of data communication, epicoele solenoid valve PLC20, cavity of resorption solenoid valve PLC21, epicoele electromagnetic switch valve PLC22, cavity of resorption electromagnetic switch valve PLC23, pneumatic cylinder information feedback PLC24, flame cutting machine start position switch 25 and flame cutting trolley start position switch 26；Upper and lower chamber solenoid valve PLC is connected with upper and lower chamber solenoid valve respectively；Upper and lower chamber electromagnetic switch valve PLC is connected with upper and lower chamber electromagnetic switch valve respectively；Flame cutting machine start position switch 25 is arranged on cutter rail 29, is positioned at original position when flame cutting machine 27 cuts slab；Flame cutting trolley start position switch 26 is arranged on cutting machine 27, is positioned at original position when flame cutting trolley 28 cuts slab；Pneumatic cylinder information feedback PLC24 is connected with pneumatic cylinder upper cavity pressure sensor 11, cavity of resorption pressure transducer 12 and displacement transducer 15, flame cutting machine start position switch 25, flame cutting trolley start position switch 26 simultaneously.
Camera 17 is CCD color camera, is fixed on by support 30 and switchs 25 for the center of circle with flame cutting machine start position, and radius is 10m～20m place, it is ensured that CCD color camera can completely shoot the flame height of flame gun and ejection.
Using method of the present utility model comprises the steps of
Step 1: manual-lock epicoele solenoid valve 5, cavity of resorption solenoid valve 9, epicoele electromagnetic switch valve 6 and cavity of resorption electromagnetic switch valve 10, and control flame cutting machine 27 and original position when flame cutting trolley 28 is separately operable cutting slab；
Step 2: the mode of operation of computer 18 is manually adjusted to " open and water front control " pattern, then performs following operation:
(3), manually control computer 18 mode, operation camera 17 flame gun 2 is shot；After camera 17 completes shooting, automatically by camera data capture card 19, associated picture being sent to computer 18, manual measurement goes out the length L of flame gun 2 on this imageRifle figure；
(4), manual measurement goes out the spout vertical dimension L to conveying roller upper surface summit of initial time flame gun 2InitiallyPhysical length L with flame gun 2Rifle；
Step 3: the flame gun 2 obtained length L on image will be measuredRifle figure, flame gun 2 physical length LInitiallyInformation input computer 18, computer 18 according to similarity principle, by plug-in, can calculate length ratio coefficient B automatically, it may be assumed that
In formula: LRifle figureFor the length of flame gun on image, unit: mm；
LRifleFor the physical length of flame gun, unit: mm；
By the spout of the initial time flame gun 2 vertical dimension L to conveying roller upper surface summitInitiallyBeing input in computer 18 with slab thickness H information, computer 18 can calculate the spout of current time flame gun 2 to the vertical dimension of point midway on slab thickness direction automatically by plug-inThat is:
In formula:For the vertical dimension of point midway, unit: mm on current time flame gun spout to slab thickness direction；
LInitiallyFor the vertical dimension of initial time flame gun spout to conveying roller upper surface summit, unit: mm；
H is slab thickness, unit: mm；
Then, computer 18 is automatically by the vertical dimension of point midway on the spout of current time flame gun 2 to slab thickness directionIt is defined as zero distance；
Step 4: after formally watering steel, is manually adjusted to " open and control after watering " pattern by the mode of operation of computer 18；Trigger flame cutting machine start position switch 25 and flame cutting trolley start position switch 26 respectively when flame cutting machine 27 and flame cutting trolley 28 after, flame cutting machine start position switch 25 and flame cutting trolley start position switch 26 send feedback signal to computer 18 respectively by pneumatic cylinder information feedback PLC24, computer 18 starts camera 17 automatically, and control the flame that flame gun 2 ejects by camera 17 and shoot, and image is sent back computer 18 by camera data capture card 19；
Step 5: computer 18 draws the flame temperature peak vertical dimension to flame gun spout after automatically captured image being analyzed, and concrete grammar is:
(1), the brightness of each pixel of image is automatically analyzed by computer 18 by plug-in, and after the brightness drawing each pixel, normalized is done in the brightness of pixel each on whole image, using pixel that brightness after normalization is 0.99～1.0 as starting point, automatic vertical upwards searches pixel that brightness is 0～0.01 as terminating point again, then automatically measures the vertical dimension L between 2Flame figure；Measuring method is: utilize the plug-in of computer 18, first all pixel quantity n in vertical direction are accumulated between two pixels, then according to the intrinsic vertical dimension Δ L (being determined by CCD color camera parameter) between adjacent two pixels, calculate the vertical dimension between the pixel that normalization brightness is 0.99～1.0 and the pixel that normalization brightness is 0～0.01, it may be assumed that
LFlame figure=Δ L (n-1)
In formula: LFlame figureFor the vertical dimension between pixel and the pixel that normalization brightness is 0～0.01 that normalization brightness is 0.99～1.0, unit: mm；
Δ L is the intrinsic distance between adjacent two pixels, unit: mm；
N is normalization brightness is all pixel quantity in vertical direction between the pixel of 0.99～1.0 and the pixel that normalization brightness is 0～0.01；
(2), computer 18 in conjunction with the length ratio coefficient B obtained in step 3, according to similarity principle, calculate the flame temperature peak actual vertical dimension L to flame gun spoutFlame, it may be assumed that
LFlame=LFlame figure·B
In formula: LFlameFor the actual vertical dimension of flame temperature peak to flame gun spout, unit: mm；
LFlame figureFor brightness after normalization respectively 0.99～1.0 and 0～0.01 two pixels between distance, unit: mm；
B is length ratio coefficient；
Step 6: computer 18 is to the flame temperature peak vertical dimension L to flame gun spoutFlameWith the vertical dimension of point midway on the spout of current time flame gun 2 to slab thickness directionCompare, calculate the difference L of the two, it may be assumed that
In formula: LFlameFor the flame temperature peak vertical dimension to flame gun spout, unit: mm；
For the vertical dimension of point midway, unit: mm on current time flame gun spout to slab thickness direction；
L is LFlameWithBetween difference, mm；
Step 7: the result of calculation according to step 6, computer 18 performs the descending operation of flame gun 2 automatically, and concrete grammar is:
(4), as L > 0, it was shown that: flame temperature peak is to the vertical dimension L of the spout of flame gun 2FlameMore than the spout of current time flame gun 2 to the vertical dimension of point midway along slab thickness directionFlame gun 2 needs to move up；Now, computer 18 chamber solenoid valve PLC21 separately down and epicoele solenoid valve PLC20 sends instruction, opens cavity of resorption solenoid valve 9, closes epicoele solenoid valve 5；Instruction is sent to epicoele electromagnetic switch valve PLC22 and cavity of resorption electromagnetic switch valve PLC23, open epicoele electromagnetic switch valve 6, close cavity of resorption electromagnetic switch valve 10, now, flame gun 2 will move up, then computer 18 is with 10ms～20ms numerical value fed back for cycle monitoring displacement transducer 15, when this numerical value is equal to L, then computer 18 can send instruction by downward chamber solenoid valve PLC21 and epicoele electromagnetic switch valve PLC22 simultaneously, cavity of resorption solenoid valve 9 and epicoele electromagnetic switch valve 6 are closed, guarantee that flame gun 2 is in this position transfixion, thus completing the adjustment work of flame gun cutting-height；
(5), as L < 0, it was shown that flame temperature peak is to the vertical dimension L of flame gun 2 spoutFlameLess than current time flame gun 2 spout to the vertical dimension of point midway along slab thickness directionFlame gun 2 needs to move down；Now, computer 18 sends instruction to epicoele solenoid valve PLC20 and cavity of resorption solenoid valve PLC21 respectively, opens epicoele solenoid valve 5, closes cavity of resorption solenoid valve 9；Instruction is sent to cavity of resorption electromagnetic switch valve PLC23 and epicoele electromagnetic switch valve PLC22, open cavity of resorption electromagnetic switch valve 10, close epicoele electromagnetic switch valve 6, now, flame gun 2 will move down, then computer 18 is with 10ms～20ms numerical value fed back for cycle monitoring displacement transducer 15, when this numerical value is equal to L, then the while of computer 18 meeting, upwards chamber solenoid valve PLC20 and cavity of resorption electromagnetic switch valve PLC23 sends instruction, epicoele solenoid valve 5 and cavity of resorption electromagnetic switch valve 10 are closed, guarantee that flame gun 2 is in this position transfixion, thus completing the adjustment work of flame gun cutting-height；
(6), after computer 18 has performed the adjustment operation of flame gun cutting-height, the spout of current time flame gun 2 can be automatically updated to the vertical dimension of point midway on slab thickness directionIt is equal to flame temperature peak that this measurement the obtain vertical dimension L to flame gun spoutFlame, it may be assumed thatAnd by the vertical dimension of point midway on current time flame gun spout to slab thickness directionIt is newly defined as zero distance, thus the adjustment for flame gun cutting-height next time lays the first stone；
Step 8: when completing to water after steel produces, its mode of operation can be adjusted to " hold and water front control " pattern by computer 18 automatically, and it is automatically switched off epicoele solenoid valve 5, cavity of resorption solenoid valve 9, epicoele electromagnetic switch valve 6 and cavity of resorption electromagnetic switch valve 10, automatically continuous casting is stopped before watering the flame gun spout of last record simultaneously to the vertical dimension of point midway on slab thickness directionIt is defined as zero distance, then according to the production schedule, is ready for step 4 and operates；Or the needs according to actual production, again from step 2, carry out measurement again and computer typing to the relevant parameter that the present invention is used in operation, further according to the production schedule, complete the operation of subsequent step.
Claims (2)
1. sheet slab flame gun cutting-height controls system, including cutter rail (29), flame cutting machine (27), the flame cutting trolley (28) being arranged on flame cutting machine (27) and spray gun (2), it is characterised in that: it also includes the pneumatic cylinder (1) being installed on flame cutting trolley (28), the camera (17) being used for shooting spray gun (2) and torch flame and Process Control System；
Described spray gun (2) is piston type flame gun；Piston type flame gun (2) is assemblied in pneumatic cylinder (1) and pneumatic cylinder (1) is divided into epicoele and cavity of resorption, epicoele connects with epicoele air inlet pipe (3) and epicoele escape pipe (4) respectively, epicoele air inlet pipe (3) and be respectively mounted epicoele solenoid valve (5) and epicoele electromagnetic switch valve (6) on epicoele escape pipe (4)；Cavity of resorption connects with cavity of resorption air inlet pipe (7) and cavity of resorption escape pipe (8) respectively, cavity of resorption air inlet pipe (7) and be respectively mounted cavity of resorption solenoid valve (9) and cavity of resorption electromagnetic switch valve (10) on cavity of resorption escape pipe (8)；Epicoele and cavity of resorption are separately installed with upper cavity pressure sensor (11) and cavity of resorption pressure transducer (12)；Epicoele is also equipped with displacement transducer (15)；
Described Process Control System include computer (18), respectively be connected with computer (18) carry out the camera data capture card (19) of data communication, epicoele solenoid valve PLC(20), cavity of resorption solenoid valve PLC(21), epicoele electromagnetic switch valve PLC(22), cavity of resorption electromagnetic switch valve PLC(23), pneumatic cylinder information feedback PLC(24), flame cutting machine start position switch (25) and flame cutting trolley start position switch (26)；Upper and lower chamber solenoid valve PLC is connected with upper and lower chamber solenoid valve respectively；Upper and lower chamber electromagnetic switch valve PLC is connected with upper and lower chamber electromagnetic switch valve respectively；Described flame cutting machine start position switch (25) is arranged on cutter rail (29), is positioned at original position during flame cutting machine (27) cutting slab；Described flame cutting trolley start position switch (26) is arranged on flame cutting machine (27), is positioned at original position during flame cutting trolley (28) cutting slab；Pneumatic cylinder information feedback PLC(24) it is connected with pneumatic cylinder upper cavity pressure sensor (11), cavity of resorption pressure transducer (12) and displacement transducer (15), flame cutting machine start position switch (25), flame cutting trolley start position switch (26) simultaneously.
2. sheet slab flame gun cutting-height as claimed in claim 1 controls system, it is characterised in that: the epicoele of described pneumatic cylinder (1) and cavity of resorption are also equipped with epicoele overflow valve (13) and cavity of resorption overflow valve (14)；Described camera (17) is CCD color camera, is fixed on by support (30) and switchs (25) for the center of circle with flame cutting machine start position, and radius is 10m ~ 20m place, it is ensured that CCD color camera (17) can completely shoot the flame height of flame gun and ejection；Described epicoele escape pipe (4) and cavity of resorption escape pipe (8) are provided with drainage screen (16) away from the one end being connected with pneumatic cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132989.6U CN205362945U (en) | 2016-02-22 | 2016-02-22 | Sheet slab flame spray gun cutting height control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132989.6U CN205362945U (en) | 2016-02-22 | 2016-02-22 | Sheet slab flame spray gun cutting height control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205362945U true CN205362945U (en) | 2016-07-06 |
Family
ID=56272054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620132989.6U Withdrawn - After Issue CN205362945U (en) | 2016-02-22 | 2016-02-22 | Sheet slab flame spray gun cutting height control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205362945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537720A (en) * | 2016-02-22 | 2016-05-04 | 河北钢铁股份有限公司邯郸分公司 | Plate slab flame spray gun cutting height control system and using method thereof |
| CN112393601A (en) * | 2019-12-16 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Ignition holding furnace and height control method thereof |
-
2016
- 2016-02-22 CN CN201620132989.6U patent/CN205362945U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537720A (en) * | 2016-02-22 | 2016-05-04 | 河北钢铁股份有限公司邯郸分公司 | Plate slab flame spray gun cutting height control system and using method thereof |
| CN112393601A (en) * | 2019-12-16 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Ignition holding furnace and height control method thereof |
| CN112393601B (en) * | 2019-12-16 | 2022-06-07 | 中冶长天国际工程有限责任公司 | Ignition holding furnace and height control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105537720B (en) | Sheet slab flame gun cutting-height control system and its application method | |
| CN104550237B (en) | For producing the continuous casting-Direct Rolling device and method of Bar Wire Product and section bar | |
| CN106180192B (en) | A kind of wire and rod continuous casting billet high speed direct sending directly rolls system and method | |
| CN205362945U (en) | Sheet slab flame spray gun cutting height control system | |
| CN101716618A (en) | Method for penetrating straightening steel plate of thermal straightening machine | |
| CN205988959U (en) | A kind of wire and rod continuous casting billet high speed direct sending directly rolls system | |
| CN104438458B (en) | The method for aligning of nose steel plate | |
| CN103223423B (en) | Control method for walking-stopping type high-side-pressure sizing press | |
| CN104942250B (en) | The method of continuous casting billet online presetting wide setting and tracking | |
| CN201253726Y (en) | Gun head apparatus of flame cutting machine | |
| CN105728886A (en) | Flame cutting technology | |
| CN102279607A (en) | Annealing furnace zone temperature control method | |
| CN110421131A (en) | Slab cooling device and method | |
| CN103949114A (en) | High-precision laminating machine for manufacturing laminating filter material with high air permeability | |
| CN104259289A (en) | Steel pipe preheating device and application thereof and steel pipe forming method | |
| CN107020359A (en) | The construction technology of casting blank surface temperature can uniformly be reduced | |
| CN103447316A (en) | Temperature-controlling and cold-controlling method and process layout for final molding rolling of high-speed wire rods | |
| CN103866108A (en) | Method for controlling thick plate quenching machine | |
| CN206882744U (en) | The cutter device of on-line tuning continuous casting steel billet cutting width | |
| CN105478704A (en) | System for preventing continuous casting corner crack defect of micro-alloy steel casting blank and application method thereof | |
| CN108072282B (en) | A kind of annular lime kiln calcining autocontrol method | |
| CN105695727A (en) | Plate shape control method for online solution treatment of steel plates | |
| CN108188391A (en) | A kind of equipment and its application method for improving selective laser fusing forming efficiency | |
| CN203899308U (en) | High-precision film laminating machine manufacturing film laminating filter material with high gas permeability | |
| CN107795531A (en) | A kind of system and its application method for keeping the secondary pressure angle stability hydraulic of chamfering slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |