CN106404142A - Composite measurement method based on double-mesa torpedo car dynamic railroad scale - Google Patents
Composite measurement method based on double-mesa torpedo car dynamic railroad scale Download PDFInfo
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- CN106404142A CN106404142A CN201610765995.XA CN201610765995A CN106404142A CN 106404142 A CN106404142 A CN 106404142A CN 201610765995 A CN201610765995 A CN 201610765995A CN 106404142 A CN106404142 A CN 106404142A
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- weighing
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- torpedo tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
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- General Physics & Mathematics (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention provides a composite measurement method based on a double-mesa torpedo car dynamic railroad scale. The composite measurement method comprises the steps that S1, three mass values are calculated in one time of dynamic weighing process in double-mesa measurement; the mass of a torpedo car is calculated as M1 by only applying the data of the left weighing mesa, the mass of the torpedo car is calculated as M2 by only applying the data of the right weighing mesa, and the mass of the torpedo car is calculated as M3 by applying the data of the left weighing mesa and the right weighing mesa, wherein M3 is the measurement output result, and M1 and M2 are the auxiliary results for judging the state of the scale; S2, when |M1-M2|/M>=0.5%, one of the weighing mesas is judged to be failed, and measurement is switched to the single mesa measurement mode; and S3, in the single mesa measurement mode, M1 is the measurement result if only the left measuring mesa is used for measurement; and M2 is the measurement result if only the right measuring mesa is used for measurement. The problems that the whole scale cannot operate in case of failure of one mesa of the torpedo car dynamic railroad scale, the utilization rate of the scale is low and the failure is not easy to discover can be solved by the method.
Description
Technical field
The present invention relates to Dynamic Weighing Technology field, more particularly, to a kind of based on dual stage face torpedo tank car dynamic railway truck scale
Compound metering method.
Background technology
Torpedo tank car is the large-scale Molten Iron Transportation equipment of iron and steel enterprise, has that heat loss is little, and temperature retention time is long, energy saving
The advantages of.Torpedo tank car dynamic railway truck scale is the measuring equipment that the torpedo tank car in advancing is carried out with Dynamic Weighting, by mechanical stage
Face, LOAD CELLS, data collecting instrument and computer composition.Dynamic railway truck scale is divided into single table surface, double from table top combining form
Table top and many table tops, are divided into Axle Measuring, bogie weighing mode and car load metering from metering method.In view of torpedo tank car longer,
Molten iron such as rocks at the factor, and this kind of track scale typically adopts dual stage face, car load metering method.Computer real-time acquisition two table top is weighed
Signal, formation is dynamic to cross weighing apparatus curve, curve is analyzed, former and later two bogies finding out torpedo tank car are just all in scale
Time period on platform, now tank car weight be equal to two table top load-bearing sums (car sentenced in this process abbreviation).
Torpedo tank car dynamic railway truck scale has played important function during the online dynamic measuring of iron and steel enterprise's molten iron, carries
High measurement efficiency.But in use, expose two deficiencies.One is that it has two table tops, some biographies of each table top
Sensor, due to using car load metering method, so whole weighing apparatus will stop when certain table top or certain sensor experiences failure
Fortune, molten iron is necessary for detouring and is measured to other weighing apparatus, affects the smooth degree of logistics, reduces measurement efficiency and weighing apparatus utilizes
Rate.Two is because metering tonnage is larger, when only one sensor performance is not good, is difficult to be found in time, easily causes metering
Misalignment.
Content of the invention
In order to solve above-mentioned technical problem, the present invention proposes a kind of compound based on dual stage face torpedo tank car dynamic railway truck scale
Metering method, it solve one table top of torpedo tank car dynamic railway truck scale be out of order whole weighing apparatus cannot run, weighing apparatus utilization rate low
And the ND problem of fault, improve weighing apparatus utilization rate, timely testing weighing machine running status, find fault in advance, ensure fortune
OK.
To achieve these goals, the scheme of present invention employing is：
A kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale, including step：
When S1, the metering of dual stage face, one time normal dynamic weighing process calculates three mass figures：Only apply left weighing unit
The quality that the data in face calculates torpedo tank car is M1, only applies the quality that the data of right weighing table calculates torpedo tank car to be M2,
Left weighing table is applied to be M3 with the quality of the data calculating torpedo tank car of right weighing table；Wherein, M3 is metering output result,
M1 and M2 is the secondary outcome judging weighing apparatus state；
S2, whenWhen, judge that one of weighing table breaks down, metering is switched to separate unit
Face quantitative model, wherein M are torpedo tank car standard quality；
Under S3, single table surface quantitative model, a table top is only applied to be measured, another table top carries out malfunction elimination, only profit
When being measured with left weighing table, metric results are M1；When only utilizing right weighing table metering, metric results are M2.
Described step S1 includes：
The weighing data of S11, the left weighing table of Real-time Collection and right weighing table；
S12, the judgement of weighing apparatus on torpedo tank car：If the continuous 5s of the weighing data of left weighing table or right weighing table is more than
Threshold value, then can determine that torpedo tank car weighs from respective mesa；
S13, after torpedo tank car weighs, Real-time Collection simultaneously preserves the weighing data of left weighing table and right weighing table, and
Weighing data according to left weighing table generates left metering waveform, and the weighing data according to right weighing table generates right metering ripple
Shape；
S14, the judgement of weighing apparatus under torpedo tank car：If the data of two weighing tables is within the time period setting, respectively less than door
Limit value, then judge to weigh under torpedo tank car；
S15, after weighing, searches two according to left metering waveform with right metering waveform recorded data under torpedo tank car respectively
Metering the respective effective metering section of waveform, wherein left metering waveform two effective metering sections be respectively labeled as " front left " and " after
Left "；Two effective metering sections of right metering waveform are respectively labeled as " front right " and " rear right "；Wherein " front left " represents torpedo tank car
Forecarriage in left weighing table, " rear left " represents the trailing bogie of torpedo tank car in left weighing table, and " front right " represents fish
In right weighing table, " rear right " represents the trailing bogie of torpedo tank car in right weighing table to the forecarriage of thunder tank car.
When torpedo tank car is unloaded, M value is 280-320 ton；When torpedo tank car full load, M value is 550-620 ton.
Mass M 1=" front left "+" rear left " in described step S1.
Mass M 2=" front right "+" rear right " in described step S1.
Mass M 3 in described step S1 is effective metering section of left metering waveform and right meter within the same time period
The sum of effective metering section of amount waveform：When torpedo tank car weighs from left weighing table, M3=" front right "+" rear left "；Torpedo tank car
When weighing from right weighing table, M3=" front left "+" rear right ".
Effective metering section in described step S15 is made a look up using the method for " maximum+open up outward zero setting ".
Left metering waveform in described S13 is capable of off-line analysiss and calculating with right metering waveform.
Beneficial effects of the present invention have：If a certain sensor or some table top have exception, can switch at any time
Single table surface quantitative model completely, is only measured with a table top, another table top overhauls, metering is not interrupted, improves weighing apparatus utilization rate.
Although single table surface metering is not conventional metering method, as standby emergent means, it can ensure the smooth of logistics, improves weighing apparatus
Device utilization rate and measurement efficiency, convenient maintenance and troubleshooting.
Another improvement of the present invention is that have off-line analysiss and computing function, the data that can be preserved according to running
Metering waveform, is shown analysis offline, and car process and result are sentenced in visualization displaying, and energy calculated off line, beneficial to problem analysis,
Failure judgement.
Brief description
Fig. 1 is the schematic diagram of the torpedo tank car dynamic railway truck scale of the present invention；
Fig. 2 is the schematic diagram of left metering waveform and right metering waveform.
Wherein, 1 torpedo tank car；2 forecarriages；3 trailing bogies；4 left weighing tables；5 right weighing tables.
Specific embodiment
In order to be better understood by technical scheme, the invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, left weighing table 4 and right weighing table 5 constitute dual stage face torpedo tank car dynamic railway truck scale, fish torpedo ladle
Car 1 passes through dual stage face torpedo tank car dynamic railway truck scale, completes weighing process.It is equipped with left weighing table 4 and right weighing table 5
Sensor, sensor is affected to export analog electrical signal by the gravity of car, through amplification and the conversion of Acquisition Instrument, is changed into numeral letter
Number, thus generating weighing data.
A kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale is it is characterised in that include step：
When S1, the metering of dual stage face, one time normal dynamic weighing process calculates three mass figures：Only apply left weighing unit
The quality that the data in face calculates torpedo tank car is M1, only applies the quality that the data of right weighing table calculates torpedo tank car to be M2,
The left weighing table of integrated application is M3 with the quality of the data calculating torpedo tank car of right weighing table；Wherein, M3 is metering output
As a result, M1 and M2 is the secondary outcome judging weighing apparatus state；
S2, whenWhen, judge that one of weighing table breaks down, metering is switched to separate unit
Face quantitative model, wherein M are torpedo tank car standard quality；
Under S3, single table surface quantitative model, a table top is only applied to be measured, another table top carries out malfunction elimination.Only profit
When being measured with left weighing table, metric results are M1；When only utilizing right weighing table metering, metric results are M2.
Described step S1 includes：
The weighing data of S11, the left weighing table of Real-time Collection and right weighing table；
S12, the judgement of weighing apparatus on torpedo tank car：If the continuous 5s of the weighing data of left weighing table or right weighing table is more than
Threshold value, then can determine that torpedo tank car weighs from respective mesa；
S13, after torpedo tank car weighs, Real-time Collection simultaneously preserves the weighing data of left weighing table and right weighing table, and
Weighing data according to left weighing table generates left metering waveform, and the weighing data according to right weighing table generates right metering ripple
Shape；
As shown in Fig. 2 by the stress variation diagram of two table tops during weighing apparatus, (light color represents left weighing table from left to right
Left metering waveform, it is right metering waveform that dark color represents right weighing table), data variation diagram is analyzed, sentences car, provide metering
Result.Due to the general traction of locomotive one section or two section torpedo tank cars, joint number is less, and transit time is shorter, so taking under vehicle
The mode of car calculating is sentenced again after weighing apparatus.
S14, the judgement of weighing apparatus under torpedo tank car：If the data of two weighing tables is within the time period setting, respectively less than door
Limit value, then judge to weigh under torpedo tank car；
After weighing under torpedo tank car, two meterings are searched respectively with right metering waveform recorded data according to left metering waveform
The respective effective metering section of waveform, two effective metering sections of wherein left metering waveform are respectively labeled as " front left " and " rear left "；
Two effective metering sections of right metering waveform are respectively labeled as " front right " and " rear right ".Effectively metering section adopts " maximum+open up outward
The method of zero setting " makes a look up.
First the whether upper weighing apparatus of vehicle is judged according to the suddenly change of table top stress value and weigh from which direction, then right
Each table top all is analyzed judging using " maximum+open up outward zero setting method ", that is, search the maximum in metering waveform, find one
After individual maximum, record, then certain limit zero setting is extended toward left and right from this maximum, recirculation executes above-mentioned mistake
Journey, until finding the relative maximum of this table top stress all, then true by expanding a scope about the maximum found
A fixed effective metering section, i.e. front left in Fig. 2, front right, rear left, the effective metering section of rear right four." front left " and " after
Left " represent the forecarriage 2 and trailing bogie 3 of the torpedo tank car metering section on left weighing table respectively；" front right " and " after
Right " represent the forecarriage 2 and trailing bogie 3 of the torpedo tank car metering section on right weighing table respectively.Make uniform and effectively measure
According to different metering method combination calculation after section.
Mass M 3 in described step S1 is effective metering section of left metering waveform and right meter within the same time period
The sum of effective metering section of amount waveform.
Dual stage face measuring principle：The metering section of " front right " and " rear left " shown in Fig. 2, represents this time period, fish torpedo ladle
The forecarriage of car in right weighing table, trailing bogie in left weighing table, whole car completely on weighing apparatus, the weight of torpedo tank car
Amount is equal to the meansigma methodss plus " rear left " section for the meansigma methodss of " front right " section, and this is dual stage face car load metering method.Dual stage face is whole
The high precision of car metering, but also have shortcoming it is simply that whole weighing apparatus relies on two table tops and many sensors, when a certain biography of maintenance
When sensor or some table top, weighing apparatus cannot normally use, and molten iron must detour and be measured to other weighing apparatus, to a certain degree
The upper impact smooth degree of logistics and measurement efficiency.
Mass M 1=" front left "+" rear left " in described step S1.
Mass M 2=" front right "+" rear right " in described step S1.
Mass M 3 in described step S1 is effective metering section of left metering waveform and right meter within the same time period
The sum of effective metering section of amount waveform, that is,：
M3=" front right "+" rear left " (from left table top weigh) or
M3=" front left "+" rear right " (weighs) from right table top.
Single table surface measuring principle：Because such weighing apparatus has two free-standing mesa, only with a table top using steering
Frame mode is also measurable., when only being measured with left weighing table taking Fig. 2 as a example, weight=" front left "+" rear left " of car, only use
Weight=" front right "+" rear right " during right weighing table metering.Although molten iron has certain rocking in tank, transport fish torpedo ladle
Train speed typically in 5km/h, speed is slower, using the error of result and the normal metering of single table surface bogie weighing mode
Within ± 0.5%, can be as standby measurement means.Under single table surface metering method, a weighing apparatus is equivalent to two single table surface
Weighing apparatus, improves the metrology capability of weighing apparatus.
The dual stage face metering of this patent compatibility and single table surface metering, using compound quantitative model.Under normal circumstances, once measure
Process adopts the metering of dual stage face, the metering of left weighing table single table surface, right weighing table single table surface to measure 3 kinds of patterns, dual stage simultaneously
The result of face metering writes daily record as official result, the result of left and right weighing table metering as reference.Under normal circumstances,
Left weighing table single table surface metering and the result gap very little of right weighing table single table surface metering, but if a table top has event
Barrier, this gap just becomes larger, and one time metering process terminates, and the metric results that system calculates left and right weighing table automatically are poor
Value, difference is excessive, is reported to the police, and reminds metrological personnel inspection in time to process.Difference warning function has in actual applications very much
It is worth, because this kind of weighing apparatus metering tonnage is typically at 600～800 tons, a sensor performance is not good, is often difficult to discover, but
Just can be found in time by the contrast of left and right weighing table.
This patent also comprise under abnormal conditions single table surface metering, if a certain sensor or some table top have different
Often, complete single table surface quantitative model can be switched at any time, only be measured with a table top, another table top overhauls, in metering not
Disconnected, improve weighing apparatus utilization rate.Although single table surface metering is not conventional metering method, as standby emergent means, it can be protected
Barrier stream smooth, improve weighing apparatus utilization rate and measurement efficiency, convenient maintenance and troubleshooting.Patent is to the metering of dual stage face and list
Table top metering carries out actual material calibration respectively, generates different measuring parameters, more improves the accuracy of single table surface metering.
Left metering waveform is capable of off-line analysiss and calculating with right metering waveform.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not model is protected to the present invention
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (8)
1. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale is it is characterised in that include step：
When S1, the metering of dual stage face, one time normal dynamic weighing process calculates three mass figures：Only apply left weighing table
The quality that data calculates torpedo tank car is M1, only applies the quality that the data of right weighing table calculates torpedo tank car to be M2, comprehensive
Left weighing table is applied to be M3 with the quality of the data calculating torpedo tank car of right weighing table；Wherein, M3 is metering output result,
M1 and M2 is the secondary outcome judging weighing apparatus state；
S2, whenWhen, carry out difference warning, judge that one of weighing table breaks down, metering is cut
It is changed to single table surface quantitative model, wherein M is torpedo tank car standard quality；
Under S3, single table surface quantitative model, a table top is only applied to be measured, another table top carries out malfunction elimination；Only using left
During weighing table metering, M1 is metric results；When only utilizing right weighing table metering, M2 is metric results.
2. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 1, it is special
Levy and be, described step S1 includes：
The weighing data of S11, the left weighing table of Real-time Collection and right weighing table；
S12, the judgement of weighing apparatus on torpedo tank car：If the continuous 5s of the weighing data of left weighing table or right weighing table is more than thresholding
Value, then can determine that torpedo tank car weighs from respective mesa；
S13, after torpedo tank car weighs, Real-time Collection simultaneously preserves the weighing data of left weighing table and right weighing table, and foundation
The weighing data of left weighing table generates left metering waveform, and the weighing data according to right weighing table generates right metering waveform；
S14, the judgement of weighing apparatus under torpedo tank car：If the data of two weighing tables is within the time period setting, respectively less than threshold value,
Then judge to weigh under torpedo tank car；
S15, after weighing, searches two meterings according to left metering waveform with right metering waveform recorded data under torpedo tank car respectively
The respective effective metering section of waveform, two effective metering sections of wherein left metering waveform are respectively labeled as " front left " and " rear left "；
Two effective metering sections of right metering waveform are respectively labeled as " front right " and " rear right "；Before wherein " front left " represents torpedo tank car
In left weighing table, " rear left " represents the trailing bogie of torpedo tank car in left weighing table to bogie, and " front right " represents fish torpedo ladle
In right weighing table, " rear right " represents the trailing bogie of torpedo tank car in right weighing table to the forecarriage of car.
3. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 2, it is special
Levy and be, when torpedo tank car is unloaded, M value is 280-320 ton；When torpedo tank car full load, M value is 550-620 ton.
4. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale described in 2, its feature are wanted according to right
It is, mass M 1=" front left "+" rear left " in described step S1.
5. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 2, it is special
Levy and be, mass M 2=" front right "+" rear right " in described step S1.
6. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 2, it is special
Levy and be, the mass M 3 in described step S1 is effective metering section of left metering waveform and right metering within the same time period
The sum of effective metering section of waveform：When torpedo tank car weighs from left weighing table, M3=" front right "+" rear left "；Torpedo tank car is certainly
When weighing on right weighing table, M3=" front left "+" rear right ".
7. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 2, it is special
Levy and be, the effective metering section in described step S15 is made a look up using the method for " maximum+open up outward zero setting ".
8. a kind of compound metering method based on dual stage face torpedo tank car dynamic railway truck scale according to claim 2, it is special
Levy and be, the left metering waveform in described S13 is capable of off-line analysiss and calculating with right metering waveform.
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| CN201610765995.XA CN106404142A (en) | 2016-08-30 | 2016-08-30 | Composite measurement method based on double-mesa torpedo car dynamic railroad scale |
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| CN201610765995.XA CN106404142A (en) | 2016-08-30 | 2016-08-30 | Composite measurement method based on double-mesa torpedo car dynamic railroad scale |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084874A (en) * | 2018-08-30 | 2018-12-25 | 宁波中和衡器有限公司 | A kind of molten iron quantitative loading system and molten iron quantitative loading method |
| CN115287381A (en) * | 2022-07-07 | 2022-11-04 | 中冶南方工程技术有限公司 | Method and device for calculating molten iron flow rate in blast furnace tapping and storage medium |
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| US4036315A (en) * | 1975-06-16 | 1977-07-19 | Transcale Ab | Weighing system |
| CN203561418U (en) * | 2013-10-30 | 2014-04-23 | 郑州恒科实业有限公司 | Three-weighing-platform road vehicle weighing system applicable to coupling type vehicles |
| CN105181098A (en) * | 2015-09-25 | 2015-12-23 | 山东钢铁股份有限公司 | Dynamic railway scale high-speed data acquisition device and method |
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2016
- 2016-08-30 CN CN201610765995.XA patent/CN106404142A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036315A (en) * | 1975-06-16 | 1977-07-19 | Transcale Ab | Weighing system |
| CN203561418U (en) * | 2013-10-30 | 2014-04-23 | 郑州恒科实业有限公司 | Three-weighing-platform road vehicle weighing system applicable to coupling type vehicles |
| CN105181098A (en) * | 2015-09-25 | 2015-12-23 | 山东钢铁股份有限公司 | Dynamic railway scale high-speed data acquisition device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084874A (en) * | 2018-08-30 | 2018-12-25 | 宁波中和衡器有限公司 | A kind of molten iron quantitative loading system and molten iron quantitative loading method |
| CN115287381A (en) * | 2022-07-07 | 2022-11-04 | 中冶南方工程技术有限公司 | Method and device for calculating molten iron flow rate in blast furnace tapping and storage medium |
| CN115287381B (en) * | 2022-07-07 | 2023-10-27 | 中冶南方工程技术有限公司 | Method, device and storage medium for calculating flow rate of molten iron in blast furnace tapping |
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