CN109855548A - Analyze the method and system of the red flame layer thickness of sintering cup test - Google Patents
Analyze the method and system of the red flame layer thickness of sintering cup test Download PDFInfo
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- CN109855548A CN109855548A CN201910093323.2A CN201910093323A CN109855548A CN 109855548 A CN109855548 A CN 109855548A CN 201910093323 A CN201910093323 A CN 201910093323A CN 109855548 A CN109855548 A CN 109855548A
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- 238000005245 sintering Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 title claims abstract description 33
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- 230000008569 process Effects 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 3
- GCKMFJBGXUYNAG-HLXURNFRSA-N Methyltestosterone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@](C)(O)[C@@]1(C)CC2 GCKMFJBGXUYNAG-HLXURNFRSA-N 0.000 claims 1
- 241000083513 Punctum Species 0.000 claims 1
- 229940085503 testred Drugs 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
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Abstract
The invention discloses a kind of method and system of red flame layer thickness for analyzing sintering cup test, this method comprises: video camera is arranged and makes the glass bar sidewall areas of the ken covering sintered cup of video camera;The process of record sintering cup test is shot using video camera;Measure the actual height of the ken of camera;Acquire multiple images arranged according to chronological order by several times according to image acquisition period;And record every image at the time of point;The physical location of pixel in image is determined according to the ratio of actual height and the size of multiple images;The color of each pixel of multiple images of scan round, judges whether pixel meets flourishing layer color characteristic, obtains flourishing layer upper position in multiple images and lower along position timing array corresponding with moment point;The flourishing layer upper position for calculating each moment point and the lower difference along position obtain the timing array of flourishing slice width degree as flourishing slice width degree.Convenient and efficient and measurement result of the invention is accurate.
Description
Technical field
The present invention relates to the sintering arts more particularly to a kind of red flame layer thickness for analyzing sintering cup test in blast furnace ironmaking
Method and system.
Background technique
Blast furnace ironmaking is the main method of modern ironmaking since technique is relatively easy, yield is big and low energy consumption, and yield accounts for
95% or more of world's pig iron total output.For the ironmaking system of China to be sintered, based on pelletizing-blast furnace process, sinter is blast furnace
The primary raw material of production, accounting is 75% or so.Sinter is that a kind of epigranular, chemical composition stability, metallurgical performance are good
Good enriched ore.The quality of sinter is very big on blast fumance influence, especially in today of emphasis " fine fodder ".
Sintering be it is a kind of sinter mixture (iron-bearing material, flux, fuel and return mine) is equipped with suitable moisture, through mixed
It is taped against on pallet after even and granulation, after surface ignition, under the bellows draft effect of lower part, bed of material fuel fires from top to bottom
Heat release is burnt, mixture is finally consolidated into the agglomeration process of sinter after a series of physical chemical change.It is being sintered flourishing layer
In, mixture softening, melting and formation liquid phase, flourishing layer influence Sintering Yield and quality very big.Flourishing layer is wide, burns
It ties gas permeability to deteriorate, Sintering Yield reduces, and narrow then amount of liquid phase is insufficient, and sinter strength is poor.Certain red flame layer thickness is not
It only can guarantee that soft melt of mixture generates enough liquid phases, and the abundant condensation-crystallization of liquid phase can be made, this all has sinter quality
Vital influence.
In order to study the red flame layer thickness of sintering and its variation, sintering cup test is generallyd use.Fig. 1 is sintering cup test device
Schematic diagram, as shown in Figure 1, each apparatus function is as follows:
Igniting cover 1: gaseous fuel burns inside heats bed of material surface;
Special sintered cup 2: the main body of sintering equipment, shape are the hollow cylinder that bottom has grid section 3, and cup sidewalls are opened
Slot is equipped with transparent glass walls item;
Temperature thermocouple 4, depressimeter 5 and flowmeter 8: to sintering process flue-gas temperature, suction pressure and exhausting flow into
The acquisition of row data, and shown on the instrument board in control cabinet 6;
Pressure regulator valve 9: suction pressure is adjusted;
Cyclone dust collectors 7: processing is dusted to flue gas;
Air blower 10: pressure difference is generated, air is made to be drawn into the bed of material.
Fig. 2 is sintering cup test flow chart, referring to fig. 2, sintering cup test main flow are as follows:
Ore matching: iron ore, flux, fuel and returning mine are weighed in proportion;
Mixing: digestion water is added, quick lime is digested, is mixed, then add water supplement and mixed;
Granulation: it feeds the mixture into granulator and pelletizes, keep mix size, chemical composition uniform;
Cloth: by the uniform cloth of mixture after granulation in the sintered cup equipped with grate-layer material;
Sintering: surface is lighted a fire, and under draft effect, bed of material fuel burns from top to bottom, and mixture is solid at high temperature
Form sinter;
It is cooling: after the cooling 5min of exhausting, sinter to be placed in air cooling;
Detection: the detection of the performances such as drop strength, screening, drum strength is carried out to sinter after cooling, and separates and returns
Mine, grate-layer material.
By special sintered cup 2, the red flame layer thickness of sintering cup test can be observed, and simulates, reflect that actual production is sintered
Flourishing layer situation of change.But naked eyes are nowadays generallyd use to observe the flourishing layer of sintered cup, data volume is big, spend the time long and
It is big by subjective impact, result accuracy is poor, still lack at present and a kind of flourishing slice width degree and migration velocity are accurately calculated, divided
The method of analysis.
Summary of the invention
The present invention provides a kind of method and system of red flame layer thickness for analyzing sintering cup test, right at present to solve
Data volume is big when the flourishing layer of sintered cup is observed, spends the time long and the technical problem of result accuracy difference.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A method of the red flame layer thickness of analysis sintering cup test, comprising the following steps:
Video camera is set and makes the glass bar sidewall areas of the ken covering sintered cup of video camera;It is shot and is remembered using video camera
Record the process of sintering cup test;Measure the actual height H of the ken of cameraIt is practical;
Acquire multiple images arranged according to chronological order by several times according to image acquisition period T;And record every image
At the time of point;According to actual height HIt is practicalThe physical location of pixel in image is determined with the ratio of the size of multiple images;
The color of each pixel of multiple images of scan round, judges whether pixel meets flourishing layer color characteristic,
Obtain the flourishing layer upper position h in multiple imagesOnWith lower along position hUnderTiming array corresponding with moment point;
Calculate the flourishing layer upper position h of each moment pointOnWith lower along position hUnderDifference as flourishing slice width degree, obtain red
The timing array of fire bed width.
As further improvements in methods of the invention:
Preferably, the shooting direction of video camera is parallel to horizon and passes through glass bar side wall towards the side inside sintered cup
To.
Acquire multiple images arranged according to chronological order by several times according to image acquisition period, comprising: adopt according to image
Collection period distances shoot multiple images by several times, or from the video that video camera is shot according to image acquisition period by several times interception according to
Multiple images of chronological order arrangement.
Image acquisition period determines according to the duration of sintering cup test, duration of sintering cup test is 20~
40min, image acquisition period are 8~12s.
The duration of sintering cup test is 30min, image acquisition period 10s.
The present invention also provides a kind of computer system, including memory, processor and storage are on a memory and can be
The step of computer program run on processor, processor realizes any of the above-described method when executing computer program.
The invention has the following advantages:
The method and system of the red flame layer thickness of analysis sintering cup test of the invention, can quickly obtain flourishing slice width degree
Timing array, measurement method is simple, quick, time saving and energy saving;Measurement result is accurate, reliable.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the sintering equipment of the prior art;
Fig. 2 is the flow diagram of the sintering cup test of the prior art;
Fig. 3 is the flow chart of the method for the red flame layer thickness of the analysis sintering cup test of the preferred embodiment of the present invention 1;
Fig. 4 is the image ken selection schematic diagram of the video camera of the preferred embodiment of the present invention 1.
Each label indicates in figure:
1, igniting cover;2, special sintered cup;3, grid section;4, temperature thermocouple;5, depressimeter;6, control cabinet;7, whirlwind removes
Dirt device;8, flowmeter;9, pressure regulator valve;10, air blower.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Referring to Fig. 3, the method for the width of the flourishing layer of analysis sintering cup test of the invention, comprising the following steps:
Video camera is set and makes the glass bar sidewall areas of the ken covering sintered cup of video camera;It is shot and is remembered using video camera
Record the process of sintering cup test;Measure the actual height H of the ken of cameraIt is practical;
Acquire multiple images arranged according to chronological order by several times according to image acquisition period T;And record every image
At the time of point;According to actual height HIt is practicalThe physical location of pixel in image is determined with the ratio of the size of multiple images;
The color of each pixel of multiple images of scan round, judges whether pixel meets flourishing layer color characteristic,
Obtain the flourishing layer upper position h in multiple imagesOnWith lower along position hUnderTiming array corresponding with moment point;
Calculate the flourishing layer upper position h of each moment pointOnWith lower along position hUnderDifference, i.e. H=hOn-hUnder, as flourishing
Slice width degree obtains the timing array of flourishing slice width degree.
Through the above steps, the timing array of flourishing slice width degree can be quickly obtained, measurement result is accurate, reliable.
When actual implementation, above method also can be carried out expansion or application below, the technical characteristic in following embodiment
It can be combined with each other, embodiment not as the normal combination to technical characteristic only as an example, limit.
Embodiment 1:
The technical scheme is that a kind of video image by acquiring special sintered cup sintering process, acquisition is regarded
Method (using VS2010 develop sintering cup test flourishing layer shift image identification software) of the frequency by image recognition, analytical calculation
It is sintered red flame layer thickness.The following steps are included:
Step 1: the selection of the lens image ken;Referring to Fig. 3, Fig. 4, video camera is fixed with bracket, sight is parallel to earth's surface
Face, entire ken shooting is sintered cup glass bar side wall, can pass through glass bar observation and is sintered flourishing layer situation of change, camera lens figure
As ken selection is as shown in Figure 4.The shooting direction of video camera is parallel to horizon and passes through glass bar side wall towards in sintered cup
The direction in portion.
Step 2: the actual height of the ken calculates;Video camera is fixed, the actual height of the ken is measured according to video presence
HIt is practical, and by ken actual height Input Software, software will calculate the corresponding relationship of ken actual height and picture size, from
And calculate color lump or the corresponding actual size of pixel or position coordinates in image.
Step 3: image acquisition period determines;It is arranged according to image acquisition period gradation acquisition according to chronological order
Multiple images, comprising: shoot multiple images by several times according to image acquisition period interval, or pressed from the video that video camera is shot
Intercept multiple images arranged according to chronological order by several times according to image acquisition period.Image acquisition period is according to sintering cup test
Duration determine that duration of sintering cup test is 20~40min, image acquisition period is 8~12s.Sintering process
Generally continue 30min or so, to guarantee the accurate, reliable of data, the present embodiment selects image acquisition period T for 10s.
Step 4: on the flourishing layer of image analysis calculation along, it is lower along location point;Firstly, converting number for video image information
The video of shooting is captured as the image of a sheet by a sheet static state by word information by the period.Secondly, the three primary color theory according to light (is appointed
He Guang can be mixed with red, green, blue this 3 kinds of light in different ratios), from top to bottom to side wall glass center in image
Pixel is scanned on line, scans the i.e. flourishing layer region of light body region for meeting software set three primary colors condition.Finally,
The upper position of flourishing layer and lower along position is calculated by the method for pixel in metering image.
Step 5: flourishing layer thickness H in the ken in calculating current period;The thickness of flourishing layer is exactly in the ken in period
Flourishing layer upper position is at a distance from lower position, i.e. H=hOn-hUnder, obtain the timing array of flourishing slice width degree.
Wherein:
HIt is practicalThe actual height of-the ken, unit m;
The period that T-software capture image is analyzed, unit s;
The actual (real) thickness of the flourishing layer of H-, unit mm;
hOn、hUnderFlourishing layer upper position, lower position, unit m in the-ken;
Embodiment 2:
t1When, flourishing layer upper position hOn=75.4cm, lower position hUnder=68.4cm
t2=t1+When T, flourishing layer upper position hOn'=74.4cm, lower position hUnder'=67.2cm
Then:
t1When, flourishing slice width degree are as follows: H=75.4-68.4=7cm;
t2When, flourishing slice width degree are as follows: H=74.4-67.2=7.2cm;
Embodiment 2:
The present embodiment provides a kind of computer system, including memory, processor and storage are on a memory and can be
The step of computer program run on processor, processor realizes above-described embodiment when executing computer program.
In summary, the present invention passes through the video image for the special sintered cup sintering process that will be acquired, and passes through image recognition
Method (developing the flourishing layer shift image identification software of sintering cup test using VS2010), analytical calculation is sintered flourishing thickness
Degree has analysis method simple, fast in the method that this substitutes traditional artificial eye observation, the analysis red flame layer thickness of sintered cup
The advantages that victory, analytic process is efficient, time saving and energy saving, and analysis result is accurate, reliable.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method for the red flame layer thickness for analyzing sintering cup test, which comprises the following steps:
Video camera is set and makes the glass bar sidewall areas of the ken covering sintered cup of the video camera;It is shot and is remembered using video camera
Record the process of sintering cup test;Measure the actual height H of the ken of the cameraIt is practical;
Acquire multiple images arranged according to chronological order by several times according to image acquisition period T;And record every image when
Punctum;According to the actual height HIt is practicalThe reality of pixel in described image is determined with the ratio of the size of multiple images
Position;
It is special to judge whether the pixel meets flourishing layer color for the color of each pixel of multiple images described in scan round
Sign obtains the flourishing layer upper position h in multiple described imagesOnWith lower along position hUnderTiming array corresponding with moment point;
Calculate the flourishing layer upper position h of each moment pointOnWith lower along position hUnderDifference as flourishing slice width degree, obtain flourishing layer
The timing array of width.
2. the method for the red flame layer thickness of analysis sintering cup test according to claim 1, which is characterized in that the camera shooting
The shooting direction of machine is parallel to horizon and passes through the glass bar side wall towards the direction inside sintered cup.
3. it is according to claim 2 analysis sintering cup test red flame layer thickness method, which is characterized in that it is described according to
Image acquisition period acquires multiple images arranged according to chronological order by several times, comprising: according to image acquisition period interval point
Secondary multiple images of shooting, or intercepted by several times according to chronological order from the video that video camera is shot according to image acquisition period
Multiple images of arrangement.
4. the method for the red flame layer thickness of analysis sintering cup test according to any one of claim 1 to 3, feature exist
In described image collection period is determined according to the duration of sintering cup test, and the duration of the sintering cup test is 20
~40min, image acquisition period are 8~12s.
5. the method for the red flame layer thickness of analysis sintering cup test according to any one of claim 1 to 3, feature exist
In the duration of the sintering cup test is 30min, image acquisition period 10s.
6. a kind of computer system, can run on a memory and on a processor including memory, processor and storage
Computer program, which is characterized in that the processor realizes that the claims 1 to 5 are any when executing the computer program
The step of the method.
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