CN110285678A - The method for monitoring sintering circular-cooler traveling skidding - Google Patents
The method for monitoring sintering circular-cooler traveling skidding Download PDFInfo
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- CN110285678A CN110285678A CN201910521461.6A CN201910521461A CN110285678A CN 110285678 A CN110285678 A CN 110285678A CN 201910521461 A CN201910521461 A CN 201910521461A CN 110285678 A CN110285678 A CN 110285678A
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- 238000005245 sintering Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000009466 transformation Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 3
- 244000152100 Sorbus torminalis Species 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
- F27D2021/0092—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects against a jam in the transport line or a production interruption
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to the methods of monitoring sintering circular-cooler traveling skidding, measure the speed signal of sintering circular-cooler, it send after converted isolating interface circuit progress analogue transformation to a point control system and is handled, treated, and analog quantity speed signal is sent to main control PLC system, practical trolley frequency signal is converted to by main control PLC system again, the setting driving frequency signal for being sent into main control PLC system with the driving frequency converter of original sintering circular-cooler compares, the actual speed of sintering circular-cooler is shown in master control upper computer, comparison frequency difference gives alarm indication when being less than setup parameter, comparison frequency difference realizes sintering circular-cooler disorderly closedown when being greater than setting limit parameter.This method realizes operation real-time monitoring, gives warning in advance in material accident, the function of failure autostop.
Description
Technical field
Present patent application belongs to metallurgy sintered monitoring control technology field, is to be related to a kind of monitoring sintering more specifically
The method of ring cold machine traveling skidding.
Background technique
Sintering circular-cooler is mainly made of ring cold trolley, slewing frame and circular orbit.Slewing frame is by driving device
Active and passive friction pulley operates trolley by frictional disk on clamping frames.After generation trolley wheel falls accident, failure wheel is caused
Make trolley operation in the abnormal states such as stopping or interrupted card resistance, and centralized control system still shows sintering circular-cooler at this time
The normal operation signal of frequency changing driving system, sintering circular-cooler upstream linked system cannot get trolley card group fault-signal, still protect
Hold normal operation.Sintering circular-cooler belongs to outdoor outdoor equipment, and operation will receive the influence of the bad weathers factor such as sleet.It is also organic
Tool equipment self reason causes active and passive friction pulley driving pressure inadequate.Above-mentioned reason can all cause friction pulley and slewing frame
Slipping phenomenon causes the equipment such as single roller, sintering machine in the major accident of material.
Sintering circular-cooler original protects equipment using NJ-2000 torque measuring and control system, connects since trolley quantity is more
Driving torque variation range is larger when nearly maintenance period, and preset peak torque parameter cannot maintain equipment to operate normally, simultaneously
Due protective effect is not had, early warning cannot be also issued to sipping fault yet, torque parameter setting is excessive to cause equipment damage,
The extent of the destruction of accident can also be expanded.So a kind of method that monitoring sintering circular-cooler skids is invented, to meet production equipment
It operates normally and safeguards.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of methods for monitoring sintering circular-cooler traveling skidding, to realize
Real-time monitoring is run, is given warning in advance in material accident, the monitoring control of the display controls one such as failure autostop.
To solve the above-mentioned problems, the technical scheme adopted by the invention is that:
A method of monitoring sintering circular-cooler traveling skidding, process are as follows: measure the speed signal of sintering circular-cooler, it is converted every
It is handled from sending after interface circuit progress analogue transformation to a point control system, treated, and analog quantity speed signal is sent to
Main control PLC system, then practical trolley frequency signal is converted to by main control PLC system, the driving frequency conversion with original sintering circular-cooler
The setting driving frequency signal that device is sent into main control PLC system compares, and the reality of sintering circular-cooler is shown in master control upper computer
Border revolving speed, comparison frequency difference gives alarm indication when being less than setup parameter, when comparison frequency difference is greater than setting limit parameter
Realize sintering circular-cooler disorderly closedown.
Technical solution of the present invention further improvement lies in that: tested the speed by being installed on the drive friction plate of sintering circular-cooler
Sensor measures the speed signal of sintering circular-cooler, and velocity sensor includes the fifth wheel being arranged on drive friction plate, sets
It sets the anti-skid chequer on fifth wheel outer, the encoder being arranged on fifth wheel, the lever arm connecting with encoder, pass through pin shaft
The bracket connecting with lever arm, bracket are T-type.
Technical solution of the present invention further improvement lies in that: sintering circular-cooler revolving speed V0 actual measurement be 20 ~ 40mm/s, fifth wheel
Diameter d is designed as 150mm, and encoder resolution A is chosen to be 1000, and the corresponding displacement L of each pulse of encoder output is: L=
3.14 × 150/1000=0.47mm；
The umber of pulse n of encoder output per second is: n=V0/L=20 ~ 40/0.47=42.5 ~ 85/s.
Technical solution of the present invention further improvement lies in that: fifth wheel using steel material, with a thickness of 15mm ~ 40mm.
Technical solution of the present invention further improvement lies in that: divide control system be SIEMENS PLC S7-200, conversion isolation
Interface circuit includes optocoupler PC817, and the input side collector of optocoupler PC817 connects resistance R1, resistance R1 other end connection coding
The signal output end of device, the high-speed counting channel I0.0 of the connection of outlet side emitter the resistance R2 and S7-200 of optocoupler PC817, electricity
Hinder R2 other end connection+24V, the outlet side collector connection -24V of optocoupler PC817.
Technical solution of the present invention further improvement lies in that: S7-200 is by the simulation after converted isolating interface circuit conversion
Amount speed pulse signal is calculated as the process of frequency are as follows:
1) high-speed counter, is defined first, and the instruction of high-speed counter includes: to define high-speed counter instruction HDEF and execute height
Speed counts instruction HSC, is defined as following parameter, i.e., configuration HSC0 is mode 0；CV=0；PV=0；It counts up；It is open to interrupt and open
Dynamic counter；
2) program code that train of pulse changes into frequency, is then created:
21) it, is divided between setting time 1 second, and initializes time started and last count value；
22) when, sintering circular-cooler starts, time started and last count value are resetted；
23), the count time；
24), when gate time reaches 1 second, statistical counter is finally worth, and calculates frequency, the arteries and veins of encoder (1) output per second
Number n=42.2 ~ 85/s is rushed, to guarantee signal accuracy, the setting of maximum value 32000 of output is corresponded to 100；
25), the EM232 output signal of S7-200 is 0 ~ 20mA, and being computed rear rate-adaptive pacemaker is 4 ~ 20mA signal.
Technical solution of the present invention further improvement lies in that: S7-200 output 4 ~ 20mA signal access main control PLC system,
Corresponding sintering circular-cooler frequency converter given value carries out range swithching in main control PLC system, is shown as 0 ~ 50Hz of practical frequency, normally
In the case of, practical frequency is fluctuated in the section ± 0.5Hz near the frequency converter given value, is fully met control and is required；
When practical frequency is less than given value 3Hz or more, alarm signal is issued, operator is reminded to go site inspection equipment；When
When practical frequency is less than given value 5Hz or more, halt command is issued, sintering circular-cooler and upstream equipment are automatically stopped.
By adopting the above-described technical solution, the beneficial effect that the present invention obtains is:
The present invention is a kind of realization operation real-time monitoring, is given warning in advance in material accident, the display controls one such as failure autostop
Monitoring and control method.Well-designed velocity measuring sensor bracket mechanism, precision calculate the diameter and pulse code of fifth wheel
Proportionate relationship, the ingenious conversion isolating interface circuit for realizing that data are incompatible, realizes expected design function and detection method.
Detailed description of the invention
Fig. 1 is velocity sensor scheme of installation of the invention；
Fig. 2 is inventive encoder wiring and the structural schematic diagram for converting isolating interface circuit；
Fig. 3 is PLC S7-200 wiring diagram of the present invention；
Fig. 4 is the electrical connection schematic diagram of the step 21) of PLC S7-200 of the present invention；
Fig. 5 is the electrical connection schematic diagram of the step 22) of PLC S7-200 of the present invention；
Fig. 6 is the electrical connection schematic diagram of the step 23) of PLC S7-200 of the present invention；
Fig. 7 is the electrical connection schematic diagram of the step 24) of PLC S7-200 of the present invention；
Fig. 8 is the electrical connection schematic diagram of the step 25) of PLC S7-200 of the present invention；
Wherein: 1, encoder, 2, fifth wheel, 3, lever arm, 4, pin shaft, 5, bracket, 6, drive friction plate, 7, main friction pulley, 8,
Driven pulley, 9, driving motor.
Specific embodiment
The present invention is described in further details below with reference to embodiment.
The invention discloses a kind of methods for monitoring sintering circular-cooler traveling skidding, referring to Fig. 1-Fig. 8, process are as follows: measurement
The speed signal of sintering circular-cooler, converted isolating interface circuit are sent after carrying out analogue transformation to point control system
Reason, treated, and analog quantity speed signal is sent to main control PLC system, then is converted to practical trolley frequency by main control PLC system
Signal, the setting driving frequency signal for being sent into main control PLC system with the driving frequency converter of original sintering circular-cooler compares, in master
Show that the actual speed of sintering circular-cooler, comparison frequency difference give alarm indication when being less than setup parameter on control host computer,
Comparison frequency difference realizes sintering circular-cooler disorderly closedown when being greater than setting limit parameter.
The speed letter of sintering circular-cooler is measured by installing velocity sensor on the drive friction plate of sintering circular-cooler
Number, velocity sensor includes the fifth wheel 2 being arranged on drive friction plate 6, the anti-skid chequer being arranged on fifth wheel outer, setting
Encoder 1 on fifth wheel 2, the lever arm 3 being connect with encoder 1, the bracket 5 being connect by pin shaft 4 with lever arm 3, branch
Frame 5 is T-type.
Encoder 1 is the speed displacement sensor for integrating photoelectric technology, when 1 axis of encoder drives grating disc spins
When, the light issued through light-emitting component is cut into interrupted light by grating disc, and is received element and receives generation initial signal.The letter
Number after subsequent processing of circuit, pulse or code signal are exported.
Sintering circular-cooler revolving speed V0 actual measurement is 20 ~ 40mm/s, and 2 diameter d of fifth wheel is designed as 150mm, 1 resolution ratio of encoder
A is chosen to be 1000, and the corresponding displacement L of each pulse that encoder 1 exports is: L=3.14 × 150/1000=0.47mm；
The umber of pulse n of encoder output per second is: n=V0/L=20 ~ 40/0.47=42.5 ~ 85/s.
Fifth wheel is (using steel material, with a thickness of 15mm ~ 40mm, such as 20mm.
Dividing control system is SIEMENS PLC S7-200, and encoder 1 exports TTL signal, and signal high level is 4V, with S7-
200 input signals mismatch, and are in addition the safety for increasing system, and design conversion, which is isolated, between encoder 1 and S7-200 connects
Mouth circuit.Conversion isolating interface circuit includes optocoupler PC817, and the input side collector of optocoupler PC817 connects resistance R1, resistance R1
The other end connects the signal output end of encoder 1, the high speed of the connection of outlet side emitter the resistance R2 and S7-200 of optocoupler PC817
Counting channel I0.0, the outlet side collector connection -24V of the resistance R2 other end connection+24V, optocoupler PC817.PC817 outlet side
Collector and emitter highest pressure resistance 35V, can play the role of level conversion, meet the requirement of S7-200；Input, outlet side are most
High current 50mA concatenates 330 Ω and 2.4k Ω resistance in input, outlet side respectively, limits current in 10mA to reduce power consumption
Left and right.
Pulse signal after converted isolating interface circuit conversion is directly accessed the high-speed counting channel I0.0 of S7-200, burns
The enabling signal of knot ring cold machine frequency converter output accesses the On-off signal channel I0.1 of S7-200 after intermediate relay is isolated,
S7-200 program is write, analog signals expanded module EM232 corresponding with speed, output 4 ~ 20mA signal output are calculated
To main control PLC system.Analog quantity speed pulse signal after converted isolating interface circuit conversion is calculated as frequency by S7-200
Process are as follows:
1) high-speed counter, is defined first, and the instruction of high-speed counter includes: to define high-speed counter instruction HDEF and execute height
Speed counts instruction HSC, is defined as following parameter, i.e., configuration HSC0 is mode 0；CV=0；PV=0；It counts up；It is open to interrupt and open
Dynamic counter；
2) program code that train of pulse changes into frequency, is then created:
21) it, is divided between setting time 1 second, and initializes time started and last count value, referring to fig. 4；
22) when, sintering circular-cooler starts, time started and last count value are resetted, referring to Fig. 5；
23), the count time, referring to Fig. 6；
24), when gate time reaches 1 second, statistical counter is finally worth, and calculates frequency, the pulse of the output per second of encoder 1
The setting of maximum value 32000 of output is corresponded to 100, referring to Fig. 7 to guarantee signal accuracy by number n=42.2 ~ 85/s；
25), the EM232 output signal of S7-200 is 0 ~ 20mA, and being computed rear rate-adaptive pacemaker is 4 ~ 20mA signal, referring to Fig. 8.
4 ~ 20mA signal of S7-200 output accesses main control PLC system, and corresponding sintering circular-cooler frequency converter given value is in master
It controls PLC system and carries out range swithching, be shown as 0 ~ 50Hz of practical frequency, under normal circumstances, practical frequency is in frequency converter given value
It is nearby fluctuated in the section ± 0.5Hz, fully meets control and require；
When practical frequency is less than given value 3Hz or more, alarm signal is issued, operator is reminded to go site inspection equipment；When
When practical frequency is less than given value 5Hz or more, halt command is issued, sintering circular-cooler and upstream equipment are automatically stopped.
The well-designed velocity measuring sensor bracket mechanism of the present invention, precision calculate the diameter of fifth wheel and the ratio of pulse code
Example relationship, the ingenious conversion isolating interface circuit for realizing that data are incompatible, realizes expected design function and detection method.
Claims (7)
1. a kind of method for monitoring sintering circular-cooler traveling skidding, it is characterised in that process are as follows: measure the speed of sintering circular-cooler
Signal, converted isolating interface circuit send to a point control system after analogue transformation being handled, analog quantity that treated
Speed signal is sent to main control PLC system, then is converted to practical trolley frequency signal by main control PLC system, with original sintered ring
The setting driving frequency signal that the driving frequency converter of cold is sent into main control PLC system compares, and shows in master control upper computer
The actual speed of sintering circular-cooler, comparison frequency difference give alarm indication when being less than setup parameter, and comparison frequency difference is greater than
Sintering circular-cooler disorderly closedown is realized when setting limit parameter.
2. the method for monitoring sintering circular-cooler traveling skidding according to claim 1, it is characterised in that: by sintered ring
Velocity sensor is installed to measure the speed signal of sintering circular-cooler on the drive friction plate of cold, velocity sensor includes setting
On drive friction plate (6) fifth wheel (2), be arranged on fifth wheel outer anti-skid chequer, volume on fifth wheel (2) is set
Code device (1), the lever arm (3) being connect with encoder (1), the bracket (5) being connect by pin shaft (4) with lever arm (3), bracket
It (5) is T-type.
3. the method for monitoring sintering circular-cooler traveling skidding according to claim 2, it is characterised in that: sintering circular-cooler turns
Fast V0 actual measurement is 20 ~ 40mm/s, and fifth wheel (2) diameter d is designed as 150mm, and encoder (1) resolution ratio A is chosen to be 1000, coding
The corresponding displacement L of each pulse of device (1) output is: L=3.14 × 150/1000=0.47mm；
The umber of pulse n of encoder (1) output per second is: n=V0/L=20 ~ 40/0.47=42.5 ~ 85/s.
4. the method for monitoring sintering circular-cooler traveling skidding according to claim 3, it is characterised in that: fifth wheel (2) is adopted
With steel material, with a thickness of 15mm ~ 40mm.
5. the method for monitoring sintering circular-cooler traveling skidding according to claim 4, it is characterised in that: a point control system is
SIEMENS PLC S7-200, conversion isolating interface circuit include optocoupler PC817, and the input side collector of optocoupler PC817 connects electricity
R1 is hindered, the resistance R1 other end connects the signal output end of encoder (1), and the outlet side emitter of optocoupler PC817 connects resistance R2
With the high-speed counting channel I0.0 of S7-200, the outlet side collector connection-of the resistance R2 other end connection+24V, optocoupler PC817
24V。
6. the method for monitoring sintering circular-cooler traveling skidding according to claim 5, it is characterised in that: S7-200 will be through turning
Analog quantity speed pulse signal after changing isolating interface circuit conversion is calculated as the process of frequency are as follows:
1) high-speed counter, is defined first, and the instruction of high-speed counter includes: to define high-speed counter instruction HDEF and execute height
Speed counts instruction HSC, is defined as following parameter, i.e., configuration HSC0 is mode 0；CV=0；PV=0；It counts up；It is open to interrupt and open
Dynamic counter；
2) program code that train of pulse changes into frequency, is then created:
21) it, is divided between setting time 1 second, and initializes time started and last count value；
22) when, sintering circular-cooler starts, time started and last count value are resetted；
23), the count time；
24), when gate time reaches 1 second, statistical counter is finally worth, and calculates frequency, the arteries and veins of encoder (1) output per second
Number n=42.2 ~ 85/s is rushed, to guarantee signal accuracy, the setting of maximum value 32000 of output is corresponded to 100；
25), the EM232 output signal of S7-200 is 0 ~ 20mA, and being computed rear rate-adaptive pacemaker is 4 ~ 20mA signal.
7. the method for monitoring sintering circular-cooler traveling skidding according to claim 6, it is characterised in that: S7-200 output
4 ~ 20mA signal accesses main control PLC system, and corresponding sintering circular-cooler frequency converter given value carries out range in main control PLC system and turns
It changes, is shown as 0 ~ 50Hz of practical frequency, under normal circumstances, practical frequency wave in the section ± 0.5Hz near the frequency converter given value
It is dynamic, it fully meets control and requires；
When practical frequency is less than given value 3Hz or more, alarm signal is issued, operator is reminded to go site inspection equipment；When
When practical frequency is less than given value 5Hz or more, halt command is issued, sintering circular-cooler and upstream equipment are automatically stopped.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393603A (en) * | 2020-03-26 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Trolley wheel fault detection method, device, equipment and medium |
| CN113568363A (en) * | 2020-04-29 | 2021-10-29 | 浙江谋皮环保科技有限公司 | Brush roll movement control method, system and device |
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| CN203454824U (en) * | 2013-08-22 | 2014-02-26 | 中冶北方（大连）工程技术有限公司 | Speed detection device for sintering annular cooler |
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| CN205353112U (en) * | 2016-01-12 | 2016-06-29 | 河北钢铁股份有限公司承德分公司 | Cold machine of sintered ring detection device that skids |
| CN206310935U (en) * | 2016-11-11 | 2017-07-07 | 攀钢集团西昌钢钒有限公司 | One kind is skidded for central cooler and detects protection device |
| CN109282663A (en) * | 2018-09-30 | 2019-01-29 | 四川德胜集团钒钛有限公司 | A kind of ring cold machine transmission slip monitoring device |
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| CN2746655Y (en) * | 2004-11-03 | 2005-12-14 | 贵阳铝镁设计研究院 | Proximity switch control device |
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| CN101419440A (en) * | 2008-11-03 | 2009-04-29 | 天津理工大学 | Multilayer cycling stereo garage control circuit based on DSP and working method thereof |
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| CN112393603A (en) * | 2020-03-26 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Trolley wheel fault detection method, device, equipment and medium |
| CN113568363A (en) * | 2020-04-29 | 2021-10-29 | 浙江谋皮环保科技有限公司 | Brush roll movement control method, system and device |
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Application publication date: 20190927 |