CN106180609A - A kind of liquid level fluctuation of crystallizer restraining device - Google Patents
A kind of liquid level fluctuation of crystallizer restraining device Download PDFInfo
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- CN106180609A CN106180609A CN201610702178.XA CN201610702178A CN106180609A CN 106180609 A CN106180609 A CN 106180609A CN 201610702178 A CN201610702178 A CN 201610702178A CN 106180609 A CN106180609 A CN 106180609A
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- liquid level
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
Abstract
The invention discloses a kind of liquid level fluctuation of crystallizer restraining device, belong to crystallizer process optimization technical field.The present invention includes that conflux mechanism, diversion mechanism and bindiny mechanism, water trap side are provided with coupled logical converging inlet, is provided with flow-stopping plate inside water trap, and water trap top is provided with circular port, and this circular port is connected with the connecting tube above it；Above-mentioned conflux mechanism, diversion mechanism and bindiny mechanism are made up of mild steel sections, and the surfaces externally and internally of mild steel sections is equipped with coat, and this coat is made up of the component of following mass percent: 85%CaO, 1.8%MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2, 0.05%FeO, 0.15%Fe2O3, 4%ZrO2, 3.8%Cr2O3.The present invention can suppress liquid level fluctuation of crystallizer under high pulling rate, and can effectively suppress to discharge on the diverter mouth of a river phenomenon that molten steel amount is uneven.
Description
Present patent application is for Application No.: the divisional application of 2015102407498, the applying date of original application
For: 2015-05-12, invention and created name is: the device of a kind of effective suppression liquid level fluctuation of crystallizer.
Technical field
The present invention relates to crystallizer process optimization technical field, more particularly, it relates to a kind of liquid level fluctuation of crystallizer presses down
Device processed.
Background technology
In the production process of continuous casting process, molten steel enters crystallizer from tundish by submersed nozzle.When throwing speed
When spending higher, in crystallizer, have bigger level fluctuation, this is because under same crystallizer width, pulling rate increases, flow stock
The speed and the flow that flow out mouth of a river side opening increase, and the impulsive force of crystallizer leptoprosopy is increased by stream stock, cause the upper backflow flowing stock strong
Degree increases, and upper recirculating zone increases with the shearing force of the top of the slag, causes the fluctuation in various degree of whole mold liquid level, wherein with close
The part fluctuation of meniscus is particularly evident, and high pulling rate can cause the increase of lower circulating flow strength, makes a large amount of field trash enter with liquid stream
Enter molten steel deep, more difficult floating.
The harm that mould liquid level larger fluctuation is brought mainly has: (1) liquid fluctuating can increase the slag of crystallizer molten steel
Risk, inclusion in casting blank content overproof will have a strong impact on the quality of strand and final products；(2) liquid fluctuating can affect knot
The three-decker of brilliant device covering slag, destroys lubricity and the balance heat transfer of crystallizer protecting residue；(3) liquid level fluctuation of crystallizer is serious
Time, the lobe of strand even can be caused to leak, be mingled with the pernicious production accidents such as leakage.
How on the premise of ensureing yield and product quality, to suppress liquid level fluctuation of crystallizer, be that puzzlement Ferrous Metallurgy produces
Enterprise's difficult problem for many years.By patent retrieval, the technical scheme being correlated with is open, such as China Patent No.:
200710047480.7, the applying date: on October 26th, 2007, invention and created name is: controlled liquid level flow field and the continuous casting of fluctuation
Mould assembly, this application case suppression liquid level fluctuation of crystallizer device by submersed nozzle, smoothing roll, guide roller, transfer to
Roller, consumption metallic plate, covering slag, strand, water-cooled crystallizer and dummy bar composition, this device is at traditional continuous casting crystallining
It is newly added smoothing roll, guide roller on device equipment, transfers to roller and consumption metallic plate, by carrying consumption metal in crystallizer
Plate controls liquid level fluctuation of crystallizer, and wherein consumption metallic plate composition is identical with the composition of continuous casting billet in crystallizer.For this
Application case, applicant done repeatedly simulation calculate find: (1) after this consumption metallic plate is admitted in crystallizer, due to this
Consumption metallic plate consumption of calorie is relatively big, breaks the thermal balance in crystallizer, reduces molten steel in mold temperature, reduces steel flow
Dynamic property, making slag floats with Slag inclusion and is difficult to.(2) after this consumption metallic plate is admitted to molten steel, its fusing is not
Top-down, the part directly contacted with the jet of submersed nozzle side opening ejection can melt at first, forms a hole, so
Can be difficult to calculate the feeding speed of consumption metallic plate, in order to ensure molten steel and " balance between revenue and expenditure " of strand, strand in crystallizer
Pulling rate also can be difficult to determine.So, the technical scheme that this application case provides, it is difficult to applied in actual production process.
In sum, though the control to liquid level fluctuation of crystallizer is made many experiments and studies in prior art, but finally
It is difficult to extensive universal, traces it to its cause two: the installation cost that (1) controls liquid level fluctuation of crystallizer is too high, and at continuous casting scene
Under high temperature, skimming device is not easy to safeguard；(2) effect controlling liquid fluctuating is undesirable, even can cause new harm,
Do not repay mistake.In casting process, how to realize the effect of good suppression liquid level fluctuation of crystallizer, and steel can be removed further
Field trash in water, to realize the smelting target of high purity steel, is a puzzlement Ferrous Metallurgy manufacturing enterprise difficult problem for many years.
Applicant Anhui University of Technology has submitted the innovation and creation application for the problems referred to above on February 27th, 2015,
Its specifying information is as follows, application number: 2015100899233, invention and created name: suppress mold liquid level ripple under a kind of high pulling rate
Dynamic device, applicant: Anhui University of Technology, the applying date: on February 27th, 2015.But, under this high pulling rate, suppress crystallizer liquid
The device of face fluctuation there is also techniques below defect: finds in actual production process, and the diverter mouth of a river on diverter is flowed out
The distribution of molten steel amount the most uneven, thus the impact causing covering slag to accept is uneven, is unfavorable for suppression mold liquid level ripple
Dynamic.In sum, how to guarantee the production process of reality suppresses the device of liquid level fluctuation of crystallizer can play good making
By effect, it is prior art to be needed badly solve the technical problem that.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome in actual production process suppresses the device of liquid level fluctuation of crystallizer to realize
The effect of suppression liquid fluctuating good in crystallizer, it is provided that a kind of liquid level fluctuation of crystallizer restraining device, uses the present invention
Technical scheme, it is possible to effectively suppress the liquid fluctuating of crystallizer under high pulling rate, and then the lobe leakage etc. reducing slag, strand sent out
Raw probability, effectively removes with the field trash flowing back into molten steel deep under crystallizer, and can effectively suppress diverter water
The phenomenon that molten steel amount is uneven is discharged on mouth.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of liquid level fluctuation of crystallizer restraining device of the present invention, including conflux mechanism, diversion mechanism and bindiny mechanism, its
In:
Described conflux mechanism includes water trap, flow-stopping plate, goes out head piece and converging inlet, and described water trap is a cylinder
Body, is provided with cylindrical cavity inside this cylinder, water trap side is provided with coupled logical converging inlet, converging inlet upper edge to
Inclined upward；Being provided with flow-stopping plate inside described water trap, this flow-stopping plate is fixed on the connection of water trap and converging inlet upper edge
Place, flow-stopping plate tilts downwards；Described water trap top is provided with circular port, and this circular port is connected with the connecting tube above it
Logical；Described goes out the rectangular block that head piece is a center band through hole, and described connecting tube is connected with the head piece that goes out above it；
Described diversion mechanism includes that diverter, described diverter are a cuboid, and diverter top is provided with some logical
Hole, diverter bottom is provided with rectangular recess；Some through holes on described diverter top are distributed along diverter lateral symmetry, and from
The center of diverter is to diverter both sides, and the size of through hole increases successively；
Described bindiny mechanism includes that davit and big davit, described four angles going out head piece upper surface hang with 4 respectively
One end of post is connected, and the other end of above-mentioned 4 davits is connected with diverter lower surface；On described big davit one end and diverter
The central point on surface is connected, and the big davit other end is connected with the external world；
Above-mentioned conflux mechanism, diversion mechanism and bindiny mechanism are made up of mild steel sections, described mild steel sections
Surfaces externally and internally is equipped with coat.
As the further improvement of the present invention, described coat is made up of the component of following mass percent: 85%
CaO, 1.8%MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2, 0.05%FeO, 0.15%Fe2O3, 4%ZrO2, 3.8%
Cr2O3。
As the further improvement of the present invention, described converging inlet upper edge positive pitch=submersed nozzle side opening to
Angle of declination × 2.
As the further improvement of the present invention, it is 16 ° that described flow-stopping plate is angled downward.
As the further improvement of the present invention, described big davit is connected with tundish bottom or outside support.
As the further improvement of the present invention, described diverter top is provided with 6 through holes, above-mentioned 6 through holes about
Big davit is symmetrical.
3. beneficial effect
Use the technical scheme that the present invention provides, compared with prior art, there is following remarkable result:
(1) a kind of liquid level fluctuation of crystallizer restraining device of the present invention, by conflux mechanism, diversion mechanism and bindiny mechanism altogether
With the device of the suppression liquid level fluctuation of crystallizer constituting ad hoc structure, found by hydraulic model trial: casting speed is the biggest, immerse
The jet intensity of formula mouth of a river side opening is the biggest, and the intensity that jet diagonally downward is ejected into crystallizer wall is the biggest, is formed upwards
The biggest with the liquid flowing strength of two downward recirculating zones, due to the shearing force of upper backflow, there is larger fluctuation in mold liquid level,
The field trash flowing back into molten steel deep under with is not easy to float.A kind of liquid level fluctuation of crystallizer restraining device of the present invention can
Before jet hit crystallizer wall diagonally downward, this jet is introduced in water trap by converging inlet, in water trap, penetrate
Amount of flow reduces and is disperseed, simultaneously because the effect of flow-stopping plate in water trap, jet is difficult to be flowed out by converging inlet again, is introduced into
By going out head piece outflow after the momentum of impinging jet reduction of water trap, meet diverter and be also evenly dispersed, finally flowed out by the diverter mouth of a river
And contact with covering slag, due to the stop of diverter side plate, liquid stream will not circumvent diverter and directly impact crystallizer wall, crystallization
Device liquid fluctuating is well suppressed, and major part field trash is also directed directly towards covering slag by this device, is ensureing that field trash goes
Liquid level fluctuation of crystallizer is effectively inhibited, it is to avoid the harm that mould liquid level larger fluctuation is brought, improvement finishes while removing
Flow field in brilliant device.
(2) applicant finds through a large amount of field experimentatioies, if the diverter mouth of a river size on diverter is the same, has certain
Flowing of kinetic energy is impacted on diverter, and the molten steel amount flowed out near the diverter mouth of a river at diverter center is more than other diverters
The molten steel amount that the mouth of a river is flowed out, the impact causing covering slag to accept is uneven, is unfavorable for suppressing liquid level fluctuation of crystallizer；The present invention's
The system effectively suppressing liquid level fluctuation of crystallizer of a kind of lifting, wherein diverter top is provided with some through holes (through hole herein
It is the diverter mouth of a river), above-mentioned some through holes are distributed along diverter lateral symmetry, and from the center of diverter to diverter two
Side, the size of through hole increases successively, and above-mentioned setting restrained effectively and discharges the phenomenon that molten steel amount is uneven on the diverter mouth of a river,
Be conducive to suppressing liquid level fluctuation of crystallizer, it is achieved that the good using effect of native system.
(3) a kind of liquid level fluctuation of crystallizer restraining device of the present invention, wherein the component of coat be 85%CaO, 1.8%
MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2, 0.05%FeO, 0.15%Fe2O3, 4%ZrO2, 3.8%Cr2O3, this painting
Coating not only has high temperature resistant, erosion resisting, also has the effect of absorption inclusion content in melting steel；Use the crystallizer liquid of the present invention
During the fluctuation restraining device of face, its coat with steel contacts during, it is possible to effectively remove three oxidations two in molten steel
The field trashes such as aluminum, manganous silicate and calcium aluminate, it is achieved the further removal to inclusion content in melting steel, to reach the smelting of high purity steel
Target.
(4) a kind of liquid level fluctuation of crystallizer restraining device of the present invention, reasonable in design, low cost of manufacture, it is simple to push away
Wide use.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of a kind of liquid level fluctuation of crystallizer restraining device of the present invention；
Fig. 2 is the left view structural representation of a kind of liquid level fluctuation of crystallizer restraining device of the present invention；
Fig. 3 is the plan structure schematic diagram of a kind of liquid level fluctuation of crystallizer restraining device of the present invention；
Fig. 4 is present invention structural representation when applying.
Label declaration in figure: 1, water trap；2, flow-stopping plate；3, head piece is gone out；4, davit；5, the diverter mouth of a river；6, big davit；
7, diverter；8, diverter side plate；9, converging inlet；10, submersed nozzle；11, covering slag；12, crystallizer wall；13, jet.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of liquid level fluctuation of crystallizer restraining device of the present embodiment, including conflux mechanism,
Diversion mechanism and bindiny mechanism, conflux mechanism can first assemble the jet 13 of submersed nozzle 10 side opening ejection, reduce its momentum,
Being then tapped off mechanism uniformly to be discharged by the liquid stream that momentum reduces, liquid level fluctuation of crystallizer is well suppressed.Bindiny mechanism divides
It is not used for connecting conflux mechanism with diversion mechanism, diversion mechanism with extraneous.
Conflux mechanism includes water trap 1, flow-stopping plate 2, goes out head piece 3 and converging inlet 9, and water trap 1 is a cylinder, this cylinder
Internal portion is provided with cylindrical cavity, and water trap 1 side is provided with coupled logical converging inlet 9, inclines upward in converging inlet 9 upper edge
Tiltedly；Water trap 1 is internal is provided with flow-stopping plate 2, and this flow-stopping plate 2 is fixed on the junction of water trap 1 and converging inlet 9 upper edge, baffle
Plate 2 tilts downwards；Water trap 1 top is provided with circular port, and this circular port is connected with the connecting tube above it；Going out head piece 3 is
The rectangular block of one center band manhole, connecting tube is connected with the head piece 3 that goes out above it.
Diversion mechanism includes that diverter 7, diverter 7 are a cuboid, and diverter 7 top is provided with 6 through holes, diverter 7
The through hole on top is referred to as the diverter mouth of a river 5.Above-mentioned 6 through holes are distributed along diverter 7 lateral symmetry, and from diverter 7
The heart is to diverter 7 both sides, and the size of through hole increases that (" size of through hole increases successively " herein refers to that the radial direction of through hole is cut successively
Area increases successively, and through hole is the biggest, i.e. the radial section of through hole is long-pending the biggest) it should be noted that applicant is through a large amount of on-the-spot
Experiment finds, if the diverter mouth of a river 5 size on diverter 7 is the same, has flowing of certain kinetic energy and impacts on diverter 7,
The molten steel amount that the molten steel amount flowed out near the diverter mouth of a river 5 at diverter 7 center flows out more than other diverter mouths of a river 5, causes
The impact that covering slag 11 accepts is uneven.Applicant's being dimensioned to the diverter mouth of a river 5 the closer to diverter 7 center more
Little, restrained effectively and on the diverter mouth of a river 5, discharge the phenomenon that molten steel amount is uneven.Diverter 7 bottom is provided with rectangular recess.
Bindiny mechanism includes davit 4 and big davit 6, go out four angles of head piece 3 upper surface respectively with one end of 4 davits 4
Being connected, the other end of above-mentioned 4 davits 4 is connected with diverter 7 lower surface；Big davit 6 one end and the center of diverter 7 upper surface
Point is connected, and big davit 6 other end is connected with tundish bottom or outside support.
In the present embodiment, water trap 1 is cylinder, is provided with cylindrical cavity inside this cylinder, and flow-stopping plate 2 is solid slab
Shape structure, going out the rectangular block that head piece 3 is a center band manhole, davit 4 and big davit 6 is cylindrical structure, and diverter 7 is
Rectangular structure, diverter 7 top is provided with 6 through holes, and above-mentioned 6 through holes are distributed along diverter 7 lateral symmetry, and from shunting
The center of device 7 increases successively to diverter 7 both sides, the size of through hole.Diverter 7 bottom is provided with rectangular recess.For cross section
Amassing the plate slab crystallizer for 400mm × 115mm, the concrete dimensional requirement of the liquid level fluctuation of crystallizer restraining device of the present embodiment is such as
Under: the internal diameter of water trap 1 is 50mm, and external diameter is 60mm, interior a height of 40mm, outer a height of 60mm；The size of flow-stopping plate 2 be 44mm ×
40mm × 5mm, flow-stopping plate 2 tilts downwards, and it is 16 ° with horizontal line angle；Go out the size of head piece 3 be 77mm × 65mm ×
10mm, going out the radius of manhole on head piece 3 is 20mm；Davit 4 height is 14.38mm, and section radius is 5mm；Big davit 6 sections
Radius surface is 10mm, a length of 1000mm；The size of diverter 7 is 300mm × 75mm × 25mm, and 6 of diverter 7 top are led to
Hole is referred to as the diverter mouth of a river 5, the combination (as shown in Figure 3) being shaped as rectangle and two semicircles at the diverter mouth of a river 5, diverter
The size of 7 lower rectangular grooves is 290mm × 65mm × 5mm；Converging inlet 9 upper edge positive pitch=submersed nozzle 10 side opening
Being angled downward × 2, in the present embodiment, it is 25 ° that submersed nozzle 10 side opening is angled downward, so converging inlet 9 upper edge is to updip
Angle takes 50 °；In the present embodiment, casting speed takes 1.8m/min, belongs to higher pulling rate in continuous casting steel billet produces.The present embodiment
Liquid level fluctuation of crystallizer restraining device is made up of mild steel sections, the surfaces externally and internally of mild steel sections all brushing coats.This painting
Coating is made up of the component of following mass percent: 85%CaO, 1.8%MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2、
0.05%FeO, 0.15%Fe2O3, 4%ZrO2, 3.8%Cr2O3。
A kind of liquid level fluctuation of crystallizer restraining device of the present embodiment, its preparation method is as follows:
Prepared by step one, mild steel parts:
The structure of the liquid level fluctuation of crystallizer restraining device according to the present embodiment prepares mild steel steel plate, is polished on its surface
Coarse, weld according to above-mentioned each part dimension, make water trap 1, flow-stopping plate 2, go out head piece 3, diverter 7 and converging inlet
9；Preparing four a length of 14.38mm again, section radius is the mild steel cylinder of 5mm and polishes coarse by its surface, makes
Four davits 4 are welded on out on head piece 3 by davit 4, and wherein the bottom surface distance of center circle of every davit 4 goes out the long limit of head piece 3 upper surface
Distance is 5mm, is 7.31mm away from minor face；Preparing a section radius again is 10mm, the mild steel cylinder of a length of 1000mm
Make big davit 6, its surface is polished coarse and is welded on the central point of diverter 7 upper surface；The metal frame of this device
(mechanics framework) completes.
Step 2, coat material prepare:
Component requirements according to coat weighs each component, and this coat material is by the component group of following mass percent
Become: 85%CaO, 1.8%MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2, 0.05%FeO, 0.15%Fe2O3, 4%
ZrO2, 3.8%Cr2O3, by said components mix homogeneously, add water and be allowed to stir into pureed；
Step 3, coating operation:
Coat material by step 2 is applied in the outer surface of mild steel sections equably, and coat thickness is 6mm, by
Being difficult to add coat in mild steel sections inner surface, so its coat thickness is not strict with, but must assure that can not
Having mild steel exposed outside, coat thickness reaches 6mm～9mm；
Step 4, maintenance are also dried
By the liquid level fluctuation of crystallizer restraining device natural curing at normal temperatures 15 of step 3～20 hours, by natural curing
After liquid level fluctuation of crystallizer restraining device put into oven: baking temperature, at 80～100 DEG C, toasts 3 hours；Baking temperature
Rise to 150～200 DEG C, toast 1.5 hours；Baking temperature rises to 200～250 DEG C, toasts 1 hour；Baking temperature rise to 300～
350 DEG C, toast 1 hour；Baking is cooled to 200～250 DEG C, toasts 1 hour；Again it is cooled to 80～100 DEG C, toasts 1 hour,
Toast natural cooling of coming out of the stove after terminating.
Use the surfaces externally and internally being attached to mild steel sections that the coat prepared of said method can be stable so that crystallization
Device liquid fluctuating restraining device stable performance.Being found by hydraulic model trial: when pulling rate is higher, submersed nozzle 10 side opening can spray
The jet 13 of injection higher speed, and then promote liquid level fluctuation of crystallizer to aggravate, the liquid level fluctuation of crystallizer suppression dress of the present embodiment
Put and be connected with extraneous (tundish bottom or outside support) by big davit 6, so that this device is fixed in crystallizer, pass through
Adjust this device and enter the degree of depth of molten steel, make converging inlet 9 in this device can assemble to greatest extent by submersed nozzle 10 side opening
The jet 13 (as shown in Figure 4) ejected, the jet 13 cylindrical cavity in water trap 1 converges, and its momentum reduces, by penetrating
Move upwardly together with molten steel, by going out head piece 3 and with less momentum impact shunting in what stream 13 was brought into be mixed in water trap 1
Device 7, final liquid stream is flowed out by 6 diverter mouths of a river 5 on diverter 7 top and is contacted with covering slag 11.Crystallize in the process
Device liquid level is changed into slowly fluctuation by big ups and downs, and fluctuating margin is less, does not results in the generation of slag phenomenon, meanwhile, liquid
Face keeps less fluctuation to promote the uniform melt of covering slag 11.In the present embodiment, the flow-stopping plate 2 in water trap 1 prevents poly-
In stream device 1, liquid stream is flowed out by converging inlet 9, and diverter side plate 8 is positioned at surrounding (diverter 7 bottom of diverter 7 lower rectangular groove
The surrounding of rectangular recess is referred to as diverter side plate 8), to crystallization when diverter side plate 8 can effectively stop liquid flow impact diverter 7
The diffusion of wall 12.The liquid level fluctuation of crystallizer restraining device of the present embodiment is due to the design of its structure so that this device can
Optimize the flow field in crystallizer under high pulling rate, the fluctuation of suppression mold liquid level, the most effectively stop submersed nozzle 10 side opening
The field trash that jet 13 is brought into enters molten steel deep in a large number, effectively removes molten steel inner clip while suppression liquid level fluctuation of crystallizer
Miscellaneous, and then improve slab quality.Additionally, what deserves to be explained is, the big davit 6 in the present invention is not for its concrete size
Size limits, and refers to mainly lift the davit of diverter 7, and the big davit 6 in the present invention is referred to as: main davit.In like manner,
Davit 4 in the present invention refers to connect head piece 3 and the connector of diverter 7, and the davit 4 in the present invention is referred to as: even
Connect post.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (6)
1. a liquid level fluctuation of crystallizer restraining device, it is characterised in that: include conflux mechanism, diversion mechanism and bindiny mechanism,
Wherein:
Described conflux mechanism includes water trap (1), flow-stopping plate (2), goes out head piece (3) and converging inlet (9), described water trap
(1) being a cylinder, be provided with cylindrical cavity inside this cylinder, water trap (1) side is provided with coupled logical converging inlet
(9), converging inlet (9) upper edge tilts upward；Described water trap (1) is internal is provided with flow-stopping plate (2), and this flow-stopping plate (2) is solid
Due to the junction of water trap (1) Yu converging inlet (9) upper edge, flow-stopping plate (2) tilts downwards；On described water trap (1)
Portion is provided with circular port, and this circular port is connected with the connecting tube above it；Described goes out the square that head piece (3) is a center band through hole
Shape block, described connecting tube is connected with the head piece (3) that goes out above it；
Described diversion mechanism includes diverter (7), and described diverter (7) is a cuboid, and diverter (7) is if top is provided with
Dry through hole, diverter (7) bottom is provided with rectangular recess；Some through holes on described diverter (7) top are along diverter (7) both sides
Symmetrical, and increase successively to diverter (7) both sides, the size of through hole from the center of diverter (7)；
Described bindiny mechanism includes davit (4) and big davit (6), and described four angles going out head piece (3) upper surface are respectively with 4
One end of root davit (4) is connected, and the other end of above-mentioned 4 davits (4) is connected with diverter (7) lower surface；Described big davit
(6) one end is connected with the central point of diverter (7) upper surface, and big davit (6) other end is connected with the external world；
Above-mentioned conflux mechanism, diversion mechanism and bindiny mechanism are made up of mild steel sections, described mild steel sections inside and outside
Surface is equipped with coat.
A kind of liquid level fluctuation of crystallizer restraining device the most according to claim 1, it is characterised in that: described coat is by such as
The component composition of lower mass percent: 85%CaO, 1.8%MgO, 3.2%MnO, 0.5%Al2O3, 1.5%SiO2, 0.05%
FeO, 0.15%Fe2O3, 4%ZrO2, 3.8%Cr2O3。
A kind of liquid level fluctuation of crystallizer restraining device the most according to claim 2, it is characterised in that: described converging inlet
(9) upper edge positive pitch=submersed nozzle (10) side opening is angled downward × 2.
A kind of liquid level fluctuation of crystallizer restraining device the most according to claim 3, it is characterised in that: described flow-stopping plate
(2) being angled downward is 16 °.
A kind of liquid level fluctuation of crystallizer restraining device the most according to claim 4, it is characterised in that: described big davit
(6) it is connected with tundish bottom or outside support.
6. according to a kind of liquid level fluctuation of crystallizer restraining device described in claim 2～5 any one, it is characterised in that: institute
Diverter (7) top stated is provided with 6 through holes, and above-mentioned 6 through holes are symmetrical about big davit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702178.XA CN106180609B (en) | 2015-05-12 | 2015-05-12 | A kind of liquid level fluctuation of crystallizer restraining device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702178.XA CN106180609B (en) | 2015-05-12 | 2015-05-12 | A kind of liquid level fluctuation of crystallizer restraining device |
| CN201510240749.8A CN104801685B (en) | 2015-05-12 | 2015-05-12 | A kind of device of effective suppression liquid level fluctuation of crystallizer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510240749.8A Division CN104801685B (en) | 2015-05-12 | 2015-05-12 | A kind of device of effective suppression liquid level fluctuation of crystallizer |
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| CN106180609A true CN106180609A (en) | 2016-12-07 |
| CN106180609B CN106180609B (en) | 2018-01-16 |
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| CN201510240749.8A Active CN104801685B (en) | 2015-05-12 | 2015-05-12 | A kind of device of effective suppression liquid level fluctuation of crystallizer |
| CN201610702169.0A Active CN106077543B (en) | 2015-05-12 | 2015-05-12 | A kind of manufacture method of liquid level fluctuation of crystallizer restraining device |
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| CN201610702169.0A Active CN106077543B (en) | 2015-05-12 | 2015-05-12 | A kind of manufacture method of liquid level fluctuation of crystallizer restraining device |
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| CN114799150A (en) * | 2022-04-24 | 2022-07-29 | 湖南华菱涟源钢铁有限公司 | Wave suppression method for continuous casting of square billets |
| CN114888270A (en) * | 2022-05-09 | 2022-08-12 | 湖南华菱涟源钢铁有限公司 | Slab continuous casting high-pulling-speed reverse inclined hole type wave suppression method |
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| CN200963673Y (en) * | 2006-09-28 | 2007-10-24 | 上海梅山钢铁股份有限公司 | High pulling speed plate blank continuous casting crystallizer immersion water gap |
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Also Published As
| Publication number | Publication date |
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| CN106180609B (en) | 2018-01-16 |
| CN106077543A (en) | 2016-11-09 |
| CN104801685A (en) | 2015-07-29 |
| CN106077543B (en) | 2018-04-10 |
| CN104801685B (en) | 2017-03-01 |
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