CN107067941A - A kind of reactive continuous casting covering slag laminar flow Behavior modeling method - Google Patents
A kind of reactive continuous casting covering slag laminar flow Behavior modeling method Download PDFInfo
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- CN107067941A CN107067941A CN201710236591.6A CN201710236591A CN107067941A CN 107067941 A CN107067941 A CN 107067941A CN 201710236591 A CN201710236591 A CN 201710236591A CN 107067941 A CN107067941 A CN 107067941A
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- continuous casting
- oil groove
- laminar flow
- covering slag
- input oil
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
Abstract
The present invention discloses a kind of reactive continuous casting covering slag laminar flow Behavior modeling method; this method uses continuous crystallizer protecting slag laminar flow Behavior modeling device, includes endless-belt, the triangle Organic glass column for simulating slag circle, the lucite oscillating plate of the high-strength transparence of simulation continuous casting crystallizer copper plate of simulation green shell；Respectively from two kinds of colors are different with viscosity, mutual exclusive medium, the liquid covering slags different from the molten steel extent of reaction are represented；By two media according to certain volume ratio, input oil groove is successively added；Treat that two media is substantially layered in input oil groove, and after liquid level stabilizing, while starting two stepper motors, it is ensured that two media is full of gap flow down；Inflow line of two media in input oil groove and gap is observed, the inflow line of appearance is confirmed and then studies influence of the line to uniform lubrication and heat transfer in crystallizer.The present invention can directly observe the laminar flow phenomenon of different physical property covering slags, have certain directive significance to actual production.
Description
Technical field
The invention belongs to Ferrous Metallurgy continuous cast mold simulation application technical field, and in particular to a kind of reactive continuous casting is protected
Protect slag laminar flow Behavior modeling method.
Background technology
The lubrication of crystallizer is to control slab quality, improve two the most key big factors of continuous casting rate with heat transfer.Even
It is that slag film, control are formed in the gap between crystallizer and strand scull to cast one of the important effect of covering slag in crystallizer
Heat transfer from strand processed to crystallizer, it is ensured that surface quality of continuously cast slab, while slag film will lubricate strand as much as possible, it is ensured that continuous casting work
Skill direct motion.Thickness, the uniformity of distribution and its consolidated structure of slag film have extremely important influence to heat transfer and lubrication.But
During stronger steel grade (such as high manganese high-aluminum steel) of molten steel and covering slag reactivity of casting, covering slag is because anti-with reproducibility element in molten steel
Answer and protection slag ingredient is changed, so as to cause covering slag physical and chemical performance to vary widely, it is impossible to realize original control
The function such as the uniform lubrication of strand and heat transfer, causes serious slab quality the problem even generation of bleed-out accident.
Conventional research is generally by changing the composition regulation covering slag of covering slag and the reactivity of molten steel, and in laboratory
Under the conditions of carry out lubrication and the Heat transfer of covering slag and study, ignore in actual casting cycle the mobility of covering slag and
Slag-metal reaction not exclusively these phenomenons, cause current result of study not put into practice Instructing manufacture effectively.
The content of the invention
Some problems existed with regard to current techniques, the present invention provides one kind and can directly observe simulation flow phenomenon, be easy to reason
By the reactive continuous casting covering slag laminar flow Behavior modeling method of analysis.To achieve these goals, the present invention is using as follows
Technical scheme：
A kind of reactive continuous casting covering slag laminar flow Behavior modeling method, this method is using continuous crystallizer protecting slag point
Laminar flow Behavior modeling device, described device includes main control computer, programmable controller, main body rack, the ring for simulating green shell
Shape belt, the triangle Organic glass column for simulating slag circle, the lucite for the high-strength transparence for simulating continuous casting crystallizer copper plate vibrate
Plate；The top of main body rack sets input oil groove, input oil groove right part, right lower quadrant opening；Input oil groove right part passes through triangle lucite
Post is connected with lucite oscillating plate；The input oil groove right lower quadrant opening is abutted with belt；The belt winds three runners, three
Individual runner includes a driving wheel, and the driving wheel is rotated by driving stepper motor；The lucite oscillating plate and bias
Wheel is abutted, and the eccentric wheel is rotated by another driving stepper motor；Main control computer is by programmable controller to the stepping
Motor control；
Comprise the following steps that：
Step one：Respectively from two kinds of colors are different with viscosity, mutual exclusive medium, represent with the molten steel extent of reaction not
Same liquid covering slag；
Step 2：By two media according to certain volume ratio, input oil groove is successively added；
Step 3：Treat that two media is substantially layered in input oil groove, and after liquid level stabilizing, while starting two stepping electricity
Machine, it is ensured that two media is full of gap flow down；
Step 4：Observe inflow line of two media in input oil groove and gap, confirm the inflow line that occurs and then
The line is studied to the uniform influence for lubricating and conducting heat in crystallizer.
Described two media uses blue ink and pumping fluid.
Inflow line of two media in input oil groove and gap is observed, to judge being that layering is flowed into, mixing is flowed into and single
One one or more flowed into.
The direction of observation is, from another planar side of lucite oscillating plate (without inclined one side), can directly to observe liquid
Body flows into state in mode and gap.
Endless-belt and the gap under shed width of triangle Organic glass column take 0.2mm, make the liquid in input oil groove because of table
Face tension force is negligible in original state flow down situation.
The normal section of Organic glass column is isosceles triangle.
Lucite oscillating plate 13 is 0.5 degree close to the inclination angle in the face of belt side.
It is an advantage of the invention that：The reactive continuous casting covering slag laminar flow Behavior modeling method of the present invention, is to be directed to
Molten steel is reacted with covering slag so that covering slag property changes and causes to lubricate what non-uniform phenomenon was proposed, in fact in casting process
Experiment device is simple in construction, and control process is simply flexible；The laminar flow phenomenon of different physical property covering slags can be directly observed, for reaction
Property continuous casting covering slag laminar flow behavior physical testing provide new thinking, there is certain guidance meaning to actual production
Justice.
Brief description of the drawings
The structure for the reactive continuous casting covering slag laminar flow Behavior modeling device that Fig. 1 is used for the method for the present invention is shown
It is intended to；
Fig. 2 is triangle Organic glass column and the partial schematic diagram at lucite oscillating plate, wherein (a) is the organic glass of triangle
The partial schematic diagram of glass post, (b) is the partial schematic diagram of lucite oscillating plate.
In figure：1st, main control computer；2nd, programmable controller；3rd, main body rack；4th, input oil groove；5th, plastics draw runner；6th, ring
Shape belt；7th, runner；8th, oil-containing groove；9th, stepper motor 1；10th, connecting rod；11st, eccentric wheel；12nd, stepper motor 2；13rd, triangle
Organic glass column；14th, transparent organic glass oscillating plate；15th, gap.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of reactive continuous casting covering slag laminar flow Behavior modeling method, the continuous casting knot that this method is used
Brilliant device covering slag laminar flow Behavior modeling device, device mainly includes main control computer 1, programmable controller 2, main body rack
3rd, input oil groove 4, plastics draw runner 5, the endless-belt 6 for simulating green shell, runner 7, oil-containing groove 8, stepper motor No. 19, connecting rod
10th, eccentric wheel 11, stepper motor No. 2 12, triangle Organic glass column 13, lucite oscillating plate 14 and gap 15.It is described defeated
Oil groove 4 is fixedly mounted on the top of main body rack 3, and input oil groove 4 sets right part opening 41, right lower quadrant opening 42, right part opening
Right part is contacted by simulating the triangle Organic glass column 13 of covering slag with lucite oscillating plate 14 at 41, the lower left quarter of input oil groove 4
The flexible plastics draw runner 5 of bonding, plastics draw runner 5 is abutted with endless-belt 6, and right lower quadrant opening 42 is closed by endless-belt 6,
Sufficiently small gap is set between endless-belt 6 and triangle Organic glass column 13, it is ensured that the liquid in input oil groove is because of surface tension
It is negligible in original state flow down situation.
Main control computer 1 is connected with the input of programmable controller 2；Programmable controller 2 has two output ends, one
The input that output end and stepper motor are No. 19 is connected, and the lower runner 7 of the output end that stepper motor is No. 19 and triangle light-emitting window connects
Connect, the lower runner 7 by the endless-belt 6 for simulating green shell so as to drive two other runner to rotate clockwise；Another output
Hold and be connected with the input of stepper motor No. 2 12, No. 2 sides of 12 output end connecting eccentric wheel 11 of stepper motor, eccentric wheel 11
Opposite side connects one end of connecting rod 10, and lucite oscillating plate 14 is installed with triangle Organic glass column 13 to be combined and be connected to connecting rod
10 other end；Place oil-containing groove 8 in the lower section of main body rack 3.
The programmable controller 2 of the present invention can use PLC, and concrete model can use Siemens Company's product；Stepper motor 1
Numbers 9 and stepper motor No. 2 12 using models be respectively 110BYG350-100 and BSHB31112；Lucite oscillating plate 13 is by height
Intensity transparent organic glass is made；The clockwise speed of endless-belt 5 is 1m/min；Lucite oscillating plate 13 vibrate frequency with
Amplitude is respectively 2Hz and 4mm；It is that blue ink and pumping fluid represent reacted guarantor respectively from the different two media of viscosity
Slag blanket and unreacted protection slag blanket are protected, viscosity is respectively 0.20Pas and 0.67Pas.
The normal section of triangle Organic glass column 12 for simulating slag circle is isosceles triangle, and abscissus isoceles triangle such as Fig. 2
(a) shown in, wherein CA=CB, AB=4mm, OC=5mm；Lucite oscillating plate 13 is α close to the inclination angle in the face of belt side
=0.5 °；Endless-belt and the gap under shed width of triangle Organic glass column take 0.2mm.
As shown in figure 1, this method comprises the following steps：
Step one：It is respectively 0.2Pas and 0.67Pas blue ink and pumping fluid, generation from two kinds of viscositys respectively
The different covering slag of the table extent of reaction；
Step 2：It is 1: 1 according to volume ratio, with the order of pumping fluid after first blue ink, two media is successively added
Input oil groove 4；
Step 3：Treat that blue ink and pumping fluid are substantially layered in input oil groove 4, and after liquid level stabilizing, while starting stepping
Motor No. 19 (rotating clockwise) and stepper motor No. 2 12, it is ensured that two media is full of the stable flow down in gap；
Step 4：Observe the inflow form of blue ink and pumping fluid in input oil groove and gap.Confirm the inflow occurred
Line (layering flows into, mixes inflow and single inflow), and then the line is studied to the uniform shadow for lubricating and conducting heat in crystallizer
Ring.
Claims (7)
1. a kind of reactive continuous casting covering slag laminar flow Behavior modeling method, it is characterised in that：This method uses continuous casting crystallining
Device covering slag laminar flow Behavior modeling device, described device includes main control computer, programmable controller, main body rack, mould
The endless-belt of intending green shell, the triangle Organic glass column for simulating slag circle, the high-strength transparence for simulating continuous casting crystallizer copper plate have
Machine glass vibration plate；The top of main body rack sets input oil groove, input oil groove right part, right lower quadrant opening；Input oil groove right part passes through three
Angle Organic glass column is connected with lucite oscillating plate；The input oil groove right lower quadrant opening is abutted with belt；The belt winding
Three runners, three runners include a driving wheel, and the driving wheel is rotated by driving stepper motor；The lucite shakes
Dynamic plate is abutted with eccentric wheel, and the eccentric wheel is rotated by another driving stepper motor；Main control computer passes through programmable controller
To the step motor control；
Comprise the following steps that：
Step one：Respectively from two kinds of colors are different with viscosity, mutual exclusive medium, represent different from the molten steel extent of reaction
Liquid covering slag；
Step 2：By two media according to certain volume ratio, input oil groove is successively added；
Step 3：Treat that two media is substantially layered in input oil groove, and after liquid level stabilizing, while starting two stepper motors, really
Protect two media and be full of gap flow down；
Step 4：Inflow line of two media in input oil groove and gap is observed, inflow line and then the research occurred is confirmed
The line is to the uniform influence for lubricating and conducting heat in crystallizer.
2. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：It is described
Two media use blue ink and pumping fluid.
3. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：Observation
Inflow line of two media in input oil groove and gap, to judge being layering inflow, mix one kind of inflow and single inflow
Or it is several.
4. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：Observation
Direction be from lucite oscillating plate to liquid inflow direction.
5. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：Annular
Belt and the gap under shed width of triangle Organic glass column take 0.2mm, make the liquid in input oil groove because surface tension is in initial
State flow down situation can be neglected.
6. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：It is organic
The normal section of glass column is isosceles triangle.
7. reactive continuous casting covering slag laminar flow Behavior modeling method according to claim 1, it is characterised in that：It is organic
Glass vibration plate is 0.5 degree close to the inclination angle in the face of belt side.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4929402A (en) * | 1984-08-08 | 1990-05-29 | 3D Systems, Inc. | Method for production of three-dimensional objects by stereolithography |
| CN203397606U (en) * | 2013-09-06 | 2014-01-15 | 重庆科技学院 | Continuous casting model system |
| CN203465080U (en) * | 2013-06-08 | 2014-03-05 | 东北大学 | Continuous casting simulation test device |
| CN105057611A (en) * | 2015-07-29 | 2015-11-18 | 东北大学 | Test device for simulating continuous casting billet solidification and method using same |
-
2017
- 2017-04-12 CN CN201710236591.6A patent/CN107067941B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4929402A (en) * | 1984-08-08 | 1990-05-29 | 3D Systems, Inc. | Method for production of three-dimensional objects by stereolithography |
| CN203465080U (en) * | 2013-06-08 | 2014-03-05 | 东北大学 | Continuous casting simulation test device |
| CN203397606U (en) * | 2013-09-06 | 2014-01-15 | 重庆科技学院 | Continuous casting model system |
| CN105057611A (en) * | 2015-07-29 | 2015-11-18 | 东北大学 | Test device for simulating continuous casting billet solidification and method using same |
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