CN106086268A - A kind of method of quick correction blast furnace roof bus type encoder code value - Google Patents
A kind of method of quick correction blast furnace roof bus type encoder code value Download PDFInfo
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- CN106086268A CN106086268A CN201610441495.0A CN201610441495A CN106086268A CN 106086268 A CN106086268 A CN 106086268A CN 201610441495 A CN201610441495 A CN 201610441495A CN 106086268 A CN106086268 A CN 106086268A
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- angle
- encoder
- spacing
- code value
- blast furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Control Of Position Or Direction (AREA)
Abstract
The invention belongs to blast furnace automatic control technology field, a kind of method being specifically related to quick correction blast furnace roof bus type encoder code value, the method calculates blast-furnace top distributing device cloth angle [alpha] angle motor and the actual angle of stream speed throttling γ angle motor by using, computing formula is revised according to actual condition, determine that detection equipment operation counting range ability and the establishment one quick correcting button of key realize the hands section of angle one key calibration function, achieve blast furnace roof bus code device one key and quickly correct intelligent control function, improve efficiency and the reliability of blast fumance, shorten elevator PLC system bus hardware and correlation module fault, encoder fault, the process time of bus communication fault, thus reduce the impact on blast fumance, reduce blast furnace and stop checking, guarantee that production normally smelted by blast furnace.
Description
Technical field
The invention belongs to blast furnace automatic control technology field, be specifically related to a kind of quickly correction blast furnace roof bus type coding
The method of device code value.
Background technology
In blast furnace ironmaking production technology, choke valve (also referred to as material flow gate, code name γ), the distributing device (direction of motion
Being divided into and fascinate and rotate, code name is α and β) it is all the key equipment realizing furnace roof polycyclic distributing, the direct shadow of its angle detection system
Ring the accuracy of BF circular cloth；Stock rod is used for detecting charge level position in State of Blast Furnace, as blast furnace process, feeding and cloth
Important referential data, position measurement requires precisely reliable；Blast furnace elevator truck stroke detection is also that DC transmission device drags
The important references signal of elevator truck feeding.
Application bus type encoder detection on-line operation equipment, this technology is relatively broad answering in modern metallurgy industry
With, bus type encoder controls in application with the obvious advantage in blast furnace top equipment detection, and its accuracy of detection is high, and range of error is little,
Often control at about 0.1 degree；Encoder is interference-free in gatherer process, signal stabilization；Communication configuration software is intuitively simple,
Easy to operate, coordinate graphic model so that whole network is more visual in image.Its shortcoming it is also obvious that once bus apparatus send out
Raw fault, relatively big to systematic influence face, in recovery process, need to take a significant amount of time with energy, encoder code value to be corrected
Work, affects blast furnace and normally answers wind, blast fumance is produced impact.
From described above, bus type encoder is a very important detection equipment in blast fumance, when always
After line device fails, it is necessary to shorten fault handling time, it is achieved fast automatic correction blast furnace roof bus type encoder code
The technical problem of value.
Summary of the invention
It is an object of the invention to provide the control strategy of an a kind of key fast automatic correcting coder code system pair, it is ensured that section
Learn reasonable correcting coder and control logic, improve encoder code system correction efficiency, meet the demand of blast fumance.
For achieving the above object, the present invention provides following technical scheme:
A kind of method of quick correction blast furnace roof bus type encoder code value, the method is carried out as steps described below:
1) calculating blast-furnace top distributing device cloth angle [alpha] angle motor and the actual angle of stream speed throttling γ angle motor: cloth
Device cloth angle [alpha] angle motor is about spacing angle [alpha] 1 and opens spacing angle [alpha] 2, and stream speed throttling γ angle motor is about spacing angle
Spending γ 1 and open spacing angle γ 2, the equipment of distributing device cloth angle [alpha] angle motor and stream speed throttling γ angle motor is actual to be opened
Degree is aperture in measurement range and the spacing angle sum in pass；
Charge level trail rod rice position is calculated with master winch truck stroke position rice position meter: known steel wire rope roller diameter, counts according to pi
Formula, can show that stock rod rice position is:
2) according to the computing formula determined in step 1, computing formula is revised according to actual condition: wherein, spacing to opening limit from closing
Position is run, the encoder that encoder to count increases, and measuring angles is:
,
Opposite side, spacing to opening spacing operation from closing, the encoder of encoder to count reduction, measuring angles is:
；
3) detection equipment operation counting range ability is determined: operate distributing device α angle and choke valve γ angle respectively, records operation angle
Range α (γ) open spacing, close spacing corresponding encoder code value, calculate switch stroke-limit inner encoder code value number,
Run master winch truck, calculate south and north flanks stock rod on earth time encoder code value poor；
4) a quick correcting button of key is worked out, it is achieved angle one key calibration function: when equipment is in out spacing or when closing spacing, logical
Crossing a quick correcting button of key, set numeral yardage by spacing for correspondence, value is put and is counted in encoder, meanwhile, is respectively the next journey
Sequence is opened spacing code value and is carried out preset number with closing spacing code value, it is ensured that when angle is run, show precise angle；When stock rod is in the upper limit
When position, master winch side truck signal on earth arrive, a quick correcting button of key can be passed through, by default code value, put number respectively
In in encoder and the next program.
Preferably, distributing device cloth angle [alpha] angle motor and stream speed throttling γ angle motor are separately installed with a set of coding
Device, a set of encoder is only installed in north and south stock rod and master winch truck rice position.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention by to distributing device α angle (throttling γ angle), under upper and lower spacing state, encoder code value puts several function,
Truck thing the most spacing encoder code value carries out putting several function, it is achieved that the quick school of α, β, γ angle and master winch truck rice position
Orthofunction, shortens maintenance or the time of fault outage post-equalization encoder, reduces bus system fault handling time longer right
The impact that blast furnace process produces.After solving to occur because of blast furnace roof bus apparatus fault, manual handle correction bus apparatus code value,
Recover furnace roof bus system normally to work time-consumingly the longest problem, it is achieved that blast furnace roof bus code device one key quickly corrects intelligence
Function can be controlled, improve efficiency and the reliability of blast fumance.Shorten elevator PLC system bus hardware and correlation module event
Barrier, encoder fault, the process time of bus communication fault, thus reduce the impact on blast fumance, reduce blast furnace and stop checking,
Guarantee that production normally smelted by blast furnace.
Detailed description of the invention
Below by specific embodiment, technical scheme is discussed in detail.
The method of a kind of quick correction blast furnace roof bus type encoder code value of the present invention, is in original blast furnace roof bus
It is corrected operation on the basis of encoder, below with the blast furnace of steel mill as background, describes fast automatic correction State of Blast Furnace in detail
Pushing up the design of the method for bus type encoder code value and realize process, in the present invention, automatic correcting coder code value is divided into two portions
Point: 1, distributing device α, choke valve γ angle correct, 2, stock rod, truck stroke rice bit correction.
1, distributing device α, choke valve γ angle correct
As corrected distributing device cloth angle [alpha] angle, distributing device cloth angle [alpha] angle is the actual aperture of this equipment for measuring aperture in range
With the spacing angle sum in pass；
During such as check point γ angle, edit button by MHI picture point lower angle, manually equipment is lifted respectively to open and close spacing
Once, the most spacing to rear time delay 1S, the next Automatic Program record code value, click on after angle, school and determine, complete encoder correction
After staking-out work, there is, when running, the situation that change in count direction is contrary with reality in equipment, needs to open RsWorx For
DeviceNet software, selects correct bus path by RSLinx, uploads this bus template configuration, compiles if desired for 18# station
Code device is modified, and clicks on this station address, uploads our station coder parameters, and presence can be supervised by code value real-time to encoder
Depending on.Encoder can be added subtrahend direction invert by Code sequence clockwise position being carried out reset or " 1 ",
Putting number by Position is carried out code value, current for encoder position is preset code value and carries out assignment, assignment completes to click on and confirms
Preserve, carry out assignment put number during, it is to be ensured that equipment is at stop position.
The first step, original design in determine γ angle close spacing code value > open spacing code value, angle lift close to close spacing time,
Encoder to count increases, and angle is put down close to when opening spacing, and encoder to count reduces.Due to elevator γ equipment choosing coaxial speed-down
Machine, two bus institute band encoders are respectively arranged in motor side rear axle and reductor rear flank axle, during equipment operation, encoder
Rotation direction contrary (side for "+", opposite side be "-"), one of which encoder to count direction is turned over by original design selection
Turning, therefore two encoders calculating γ angle formula are identical, and encoder computing formula is:
When, after hoisting system interruption maintenance or bus system fault, when again powering on, encoder is all defaulted as counting clockwise, this
Time work that to add subtrahend in opposite direction for two encoders, during to γ angle correct, need to lift at least twice and put down throttling,
And revise one group of encoder to count direction of angle display mistake in running, after heavily powering on for elimination bus system, need to enter
Row DeviceNet network sweep amendment encoder adds subtrahend direction, and γ angle calculation contrary for one of which counting direction is public
Formula is modified.Its computing formula is as follows:
By revising one group of angle calculation formula, it is achieved bus code device powers on and gets final product work, eliminate loaded down with trivial details encoder plus-minus
Number direction determines and modification.
Second step, elevator bus code device is in operation process, or when maintenance re-powers work, encoder code value can be sent out
Raw skew, causes the γ angle calculated not conform to the actual conditions, need to re-calibrate encoder.The one quick school of key of this programme
Positive γ angle program, when equipment be in any one fixing spacing time, by clicking on a upper quick correcting button of key, by corresponding
Code value put number in the bus code device of its correspondence, pass to spacing code value corresponding for PLC deposit switching spacing code value simultaneously
Device, for γ angle calculation.
2, truck stroke rice bit correction
During original design middle master winch truck stroke rice bit correction, south stock rod signal on earth need to be worked as and arrive, by RsWorx For
Encoder to count is put several 10000000 by DeviceNet software, the quick correction program of key stock Che meter Wei regrouped,
Have recorded the encoder code value corresponding to truck south and north flanks signal on earth, when any side of truck signal on earth arrives, hilllock
Bit manipulation personnel only need to be by HMI picture rice position one key correcting button, it is achieved truck rice position quickly corrects, and reduces truck rice position
The operation easier of correction work.
Claims (2)
1. the method for a quick correction blast furnace roof bus type encoder code value, it is characterised in that: the method is according to following step
Suddenly carry out:
1) calculating blast-furnace top distributing device cloth angle [alpha] angle motor and the actual angle of stream speed throttling γ angle motor: cloth
Device cloth angle [alpha] angle motor is about spacing angle [alpha] 1 and opens spacing angle [alpha] 2, and stream speed throttling γ angle motor is about spacing angle
Spending γ 1 and open spacing angle γ 2, the equipment of distributing device cloth angle [alpha] angle motor and stream speed throttling γ angle motor is actual to be opened
Degree is aperture in measurement range and the spacing angle sum in pass；
Charge level trail rod rice position is calculated with master winch truck stroke position rice position meter: known steel wire rope roller diameter, counts according to pi
Formula, can show that stock rod rice position is:
2) according to the computing formula determined in step 1, computing formula is revised according to actual condition: wherein, spacing to opening limit from closing
Position is run, the encoder that encoder to count increases, and measuring angles is:
,
Opposite side, spacing to opening spacing operation from closing, the encoder of encoder to count reduction, measuring angles is:
；
3) detection equipment operation counting range ability is determined: operate distributing device α angle and choke valve γ angle respectively, records operation angle
Range α (γ) open spacing, close spacing corresponding encoder code value, calculate switch stroke-limit inner encoder code value number,
Run master winch truck, calculate south and north flanks stock rod on earth time encoder code value poor；
4) a quick correcting button of key is worked out, it is achieved angle one key calibration function: when equipment is in out spacing or when closing spacing, logical
Crossing a quick correcting button of key, set numeral yardage by spacing for correspondence, value is put and is counted in encoder, meanwhile, is respectively the next journey
Sequence is opened spacing code value and is carried out preset number with closing spacing code value, it is ensured that when angle is run, show precise angle；When stock rod is in the upper limit
When position, master winch side truck signal on earth arrive, a quick correcting button of key can be passed through, by default code value, put number respectively
In in encoder and the next program.
The method of a kind of quick correction blast furnace roof bus type encoder code value the most as claimed in claim 1, it is characterised in that:
Distributing device cloth angle [alpha] angle motor and stream speed throttling γ angle motor are separately installed with a set of encoder, north and south stock rod and master
A set of encoder is only installed in elevator truck rice position.
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| CN201610441495.0A CN106086268B (en) | 2016-06-20 | 2016-06-20 | A kind of method of quick correction blast furnace roof bus type encoder code value |
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| CN201610441495.0A CN106086268B (en) | 2016-06-20 | 2016-06-20 | A kind of method of quick correction blast furnace roof bus type encoder code value |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411498A (en) * | 2019-07-24 | 2019-11-05 | 莱芜钢铁集团电子有限公司 | A kind of accurate soft check method of encoder |
| CN112080602A (en) * | 2020-08-20 | 2020-12-15 | 唐山钢铁集团有限责任公司 | Method for realizing detection of blast furnace material distribution angle by double encoders |
| CN113419481A (en) * | 2021-06-17 | 2021-09-21 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Automatic adjustment control method for sealing nitrogen of blast furnace water-cooling distributor |
| CN113930582A (en) * | 2021-11-13 | 2022-01-14 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Electrode accurate rotation control system and control method for double-station LF furnace |
| CN114136355A (en) * | 2021-11-13 | 2022-03-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for quickly correcting stroke control encoder of blast furnace main coil car |
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| JPH06306430A (en) * | 1993-04-26 | 1994-11-01 | Nippon Steel Corp | Device for automatically deciding distributing pattern of descending rate of charged material at furnace top part in blast furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411498A (en) * | 2019-07-24 | 2019-11-05 | 莱芜钢铁集团电子有限公司 | A kind of accurate soft check method of encoder |
| CN112080602A (en) * | 2020-08-20 | 2020-12-15 | 唐山钢铁集团有限责任公司 | Method for realizing detection of blast furnace material distribution angle by double encoders |
| CN112080602B (en) * | 2020-08-20 | 2022-04-01 | 唐山钢铁集团有限责任公司 | Method for realizing detection of blast furnace material distribution angle by double encoders |
| CN113419481A (en) * | 2021-06-17 | 2021-09-21 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Automatic adjustment control method for sealing nitrogen of blast furnace water-cooling distributor |
| CN113930582A (en) * | 2021-11-13 | 2022-01-14 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Electrode accurate rotation control system and control method for double-station LF furnace |
| CN114136355A (en) * | 2021-11-13 | 2022-03-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for quickly correcting stroke control encoder of blast furnace main coil car |
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| CN106086268B (en) | 2018-01-26 |
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