CN106180609B - 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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- CN106180609B CN106180609B CN201610702178.XA CN201610702178A CN106180609B CN 106180609 B CN106180609 B CN 106180609B CN 201610702178 A CN201610702178 A CN 201610702178A CN 106180609 B CN106180609 B CN 106180609B
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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
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Abstract
The invention discloses a kind of liquid level fluctuation of crystallizer restraining device, belongs to crystallizer process optimization technical field.The present invention includes conflux mechanism, diversion mechanism and bindiny mechanism, and water trap side is provided with coupled logical converging inlet, is provided with flow-stopping plate inside water trap, water trap top is provided with circular port, and the circular port is connected with the connecting tube above it；Above-mentioned conflux mechanism, diversion mechanism and bindiny mechanism is made up of mild steel sections, and the surfaces externally and internally of mild steel sections is equipped with coat, and the 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 the uneven phenomenon of molten steel amount on the current divider mouth of a river.
Description
Present patent application is to be directed to Application No.：2015102407498 divisional application, the applying date of original application
For：2015-05-12, invention and created name are：A kind of device for effectively suppressing liquid level fluctuation of crystallizer.
Technical field
The present invention relates to crystallizer process optimization technical field, presses down more specifically to a kind of liquid level fluctuation of crystallizer
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 degree is higher, larger level fluctuation is had in crystallizer, because under same crystallizer width, pulling rate increase, flows stock
Speed and the flow increase of mouth of a river side opening are flowed out, stream stock increases the impulsive force of crystallizer leptoprosopy, causes the upper backflow for flowing stock strong
The shearing force of degree increase, upper recirculating zone and the top of the slag increases, and causes the different degrees of fluctuation 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, a large amount of field trashes is entered with liquid stream
Enter molten steel deep, then 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 influence to tie
The three-decker of brilliant device covering slag, destroy the lubricity and balance heat transfer of crystallizer protecting residue；(3) liquid level fluctuation of crystallizer is serious
When, or even the lobe of strand can be caused to leak, be mingled with the pernicious production accidents such as leakage.
How on the premise of yield and product quality is ensured to suppress liquid level fluctuation of crystallizer, be puzzlement Ferrous Metallurgy production
The problem of enterprise for many years.By patent retrieval, have related technical scheme at present and disclose, such as China Patent No.：
200710047480.7 the applying date：On October 26th, 2007, invention and created name are：Controllable liquid level flow field and the continuous casting of fluctuation
Mould assembly, the device of the suppression liquid level fluctuation of crystallizer of this application case by submersed nozzle, smoothing roll, guide roller, transfer to
Roller, consumption metallic plate, covering slag, strand, water-cooled crystallizer and dummy bar composition, the device is in traditional continuous casting crystallining
Smoothing roll, guide roller are newly added in device equipment, transfers to roller and consumption metallic plate, by conveying consumption metal into 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 have done multiple simulation and have calculated discovery：(1) after the consumption metallic plate is admitted in crystallizer, due to this
Consumption metallic plate consumption of calorie is larger, breaks the thermal balance in crystallizer, reduces molten steel in mold temperature, reduces steel flow
Dynamic property, slugging is floated with Slag inclusion and be difficult to.(2) after the consumption metallic plate is admitted to molten steel, it, which melts, is not
Top-down, the part that the jet sprayed with submersed nozzle side opening directly contacts can be melted at first, form a hole, so
The feeding speed for calculating consumption metallic plate can be difficult to, in order to ensure " balance between revenue and expenditure " of molten steel and strand in crystallizer, strand
Pulling rate also can be difficult to determine.So technical scheme that this application case provides, it is difficult to applied in actual production process.
In summary, though many experiments and research are made in the control to liquid level fluctuation of crystallizer in the prior art, finally
It is difficult to popularize on a large scale, tracing it to its cause has two：(1) control the installation cost of liquid level fluctuation of crystallizer too high, and at continuous casting scene
Under high temperature, skimming device is not easy to safeguard；(2) control the effect of liquid fluctuating undesirable, or even new harm can be caused, obtain
Mistake is not repaid.The effect of good suppression liquid level fluctuation of crystallizer how is realized in casting process, and can further remove steel
Field trash in water, it is to perplex the problem of Ferrous Metallurgy manufacturing enterprise for many years to realize the smelting target of high purity steel.
Applicant Anhui University of Technology in the innovation and creation application submitted regarding to the issue above in 27 days 2 months in 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 2 27th, 2015.But suppress crystallizer liquid under the high pulling rate
Following technological deficiency also be present in the device of face fluctuation：Found in actual production process, the current divider mouth of a river outflow on current divider
Molten steel amount distribution it is very uneven, so as to cause covering slag receive impact it is uneven, be unfavorable for suppress mold liquid level ripple
It is dynamic.In summary, the device for how ensuring to suppress liquid level fluctuation of crystallizer in actual production process can play good make
It is the technical problem of urgent need to resolve in the prior art with effect.
The content of the invention
1. invention technical problems to be solved
It is an object of the invention to overcome the device for suppressing liquid level fluctuation of crystallizer in actual production process not realize
The effect of good suppression liquid fluctuating in crystallizer, there is provided a kind of liquid level fluctuation of crystallizer restraining device, using the present invention
Technical scheme, can effectively suppress the liquid fluctuating of crystallizer under high pulling rate, and then reduce the hairs such as slag, the leakage of the lobe of strand
Raw probability, effectively remove with the field trash that molten steel deep is flowed back under crystallizer, and can effectively suppress current divider water
The uneven phenomenon of molten steel amount is discharged on mouth.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention 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, outflow port and converging inlet, and described water trap is a cylinder
Body, is provided with cylindrical cavity inside the cylinder, and water trap side is provided with coupled logical converging inlet, converging inlet upper edge to
Inclined upward；Flow-stopping plate is provided with inside described water trap, the flow-stopping plate is fixed on the connection of water trap and converging inlet upper edge
Place, flow-stopping plate tilt downwards；Described water trap top is provided with circular port, and the circular port is connected with the connecting tube above it
It is logical；Described outflow port is the rectangular block of a center band through hole, and described connecting tube is connected with the outflow port above it；
Described diversion mechanism includes current divider, and described current divider is a cuboid, and current divider top is provided with some logical
Hole, current divider bottom are provided with rectangular recess；Some through holes on the current divider top are symmetrical along current divider both sides, and from
The center of current divider increases successively to current divider both sides, the size of through hole；
Described bindiny mechanism includes davit and big davit, and four angles of described outflow port upper surface are hung with 4 respectively
One end of post is connected, and the other end of above-mentioned 4 davits is connected with current divider lower surface；On described big davit one end and current divider
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 is 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, the 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 present invention further improvement, described converging inlet upper edge positive pitch=submersed nozzle side opening to
Angle of declination × 2.
As the further improvement of the present invention, described flow-stopping plate is angled downward as 16 °.
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 current divider top is provided with 6 through holes, above-mentioned 6 through holes on
Big davit is symmetrical.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, there is following remarkable result：
(1) a kind of liquid level fluctuation of crystallizer restraining device of the invention, is total to by conflux mechanism, diversion mechanism and bindiny mechanism
With the device for the suppression liquid level fluctuation of crystallizer for constituting specific structure, found by hydraulic model trial：Casting speed is bigger, immerses
The jet intensity of formula mouth of a river side opening is bigger, and the intensity that jet diagonally downward is ejected into crystallizer wall is bigger, and what is formed is upward
Bigger 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 that molten steel deep is flowed back under is not easy to float.A kind of liquid level fluctuation of crystallizer restraining device of the present invention can
This jet is introduced into water trap by converging inlet before jet hit crystallizer wall diagonally downward, in water trap, penetrated
Amount of flow reduce simultaneously disperseed, simultaneously because in water trap flow-stopping plate effect, jet is difficult to be flowed out again by converging inlet, is introduced into
The momentum of impinging jet of water trap is flowed out after reducing by outflow port, is met current divider and is evenly dispersed, is finally flowed out by the current divider mouth of a river
And contacted with covering slag, due to the stop of current divider side plate, liquid stream will not circumvent current divider and directly impact crystallizer wall, crystallization
Device liquid fluctuating is suppressed well, and most of field trash is also directed directly towards covering slag by the present apparatus, is ensureing that field trash goes
Except while effectively inhibit liquid level fluctuation of crystallizer, avoid the harm that mould liquid level larger fluctuation is brought, improvement finishes
Flow field in brilliant device.
(2) applicant has found by a large amount of field experiments, if the current divider mouth of a river size on current divider is the same, has certain
The incoming of kinetic energy is impacted on current divider, and the molten steel amount flowed out close to the current divider mouth of a river at current divider center is more than other current dividers
The molten steel amount of mouth of a river outflow, the impact for causing covering slag to receive is uneven, is unfavorable for suppressing liquid level fluctuation of crystallizer；The present invention's
A kind of system of effective suppression liquid level fluctuation of crystallizer of lifting, wherein current divider top are provided with some through holes (through hole herein
The as current divider mouth of a river), above-mentioned some through holes are symmetrical along current divider both sides, and from the center of current divider to current divider two
Side, the size of through hole increase successively, and above-mentioned setting, which restrained effectively, discharges the uneven phenomenon of molten steel amount on the current divider mouth of a river,
Be advantageous to suppress liquid level fluctuation of crystallizer, realize the good using effect of the system.
(3) a kind of liquid level fluctuation of crystallizer restraining device of the invention, the wherein component of coat are 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 painting
Coating not only has high temperature resistant, erosion resisting, also has the function that to adsorb inclusion content in melting steel；Use the crystallizer liquid of the present invention
When restraining device is fluctuated in face, its coat can effectively remove three oxidations two in molten steel during with steel contacts
The field trashes such as aluminium, manganous silicate and calcium aluminate, the further removal to inclusion content in melting steel is realized, to reach the smelting of high purity steel
Target.
(4) a kind of liquid level fluctuation of crystallizer restraining device of the invention, reasonable in design, manufacturing cost is low, is easy to push away
It is wide to use.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram of liquid level fluctuation of crystallizer restraining device of the present invention；
Fig. 2 is a kind of left view structural representation of liquid level fluctuation of crystallizer restraining device of the present invention；
Fig. 3 is a kind of overlooking the structure diagram of liquid level fluctuation of crystallizer restraining device of the present invention；
Structural representation when Fig. 4 is present invention application.
Label declaration in figure：1st, water trap；2nd, flow-stopping plate；3rd, outflow port；4th, davit；5th, the current divider mouth of a river；6th, big davit；
7th, current divider；8th, current divider side plate；9th, converging inlet；10th, submersed nozzle；11st, covering slag；12nd, crystallizer wall；13rd, jet.
Embodiment
To further appreciate 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 the side opening of submersed nozzle 10 ejection, reduce its momentum,
Mechanism is then tapped off uniformly to discharge the liquid stream that momentum reduces, liquid level fluctuation of crystallizer is suppressed well.Bindiny mechanism point
Conflux mechanism and diversion mechanism, diversion mechanism and the external world Yong Yu not connected.
Conflux mechanism includes water trap 1, flow-stopping plate 2, outflow port 3 and converging inlet 9, and water trap 1 is a cylinder, the cylinder
Internal portion is provided with cylindrical cavity, and the side of water trap 1 is provided with coupled logical converging inlet 9, and the upper edge of converging inlet 9 is inclined upward
Tiltedly；The inside of water trap 1 is provided with flow-stopping plate 2, and the flow-stopping plate 2 is fixed on the junction of water trap 1 and the upper edge of converging inlet 9, baffle
Plate 2 tilts downwards；The top of water trap 1 is provided with circular port, and the circular port is connected with the connecting tube above it；Outflow port 3 is
The rectangular block of one center band manhole, connecting tube are connected with the outflow port 3 above it.
Diversion mechanism includes current divider 7, and current divider 7 is a cuboid, and the top of current divider 7 is provided with 6 through holes, current divider 7
The through hole on top is referred to as the current divider mouth of a river 5.Above-mentioned 6 through holes are symmetrical along the both sides of current divider 7, and from current divider 7
For the heart to the both sides of current divider 7, 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 bigger, i.e. the radial section product of through hole is bigger) it should be noted that applicant passes through a large amount of scenes
Experiment is found, if the size of the current divider mouth of a river 5 on current divider 7 is the same, the incoming with certain kinetic energy is impacted on current divider 7,
The molten steel amount flowed out close to the current divider mouth of a river 5 at the center of current divider 7 is more than the molten steel amount of other current divider mouths of a river 5 outflow, causes
The impact that covering slag 11 receives is uneven.Applicant is dimensioned to get over closer to the center of current divider 7 by the current divider mouth of a river 5
It is small, it restrained effectively and the uneven phenomenon of molten steel amount is discharged on the current divider mouth of a river 5.The bottom of current divider 7 is provided with rectangular recess.
Bindiny mechanism includes davit 4 and big davit 6, four angles of the upper surface of outflow port 3 one end with 4 davits 4 respectively
It is connected, the other end of above-mentioned 4 davits 4 is connected with the lower surface of current divider 7；The center of big one end of davit 6 and the upper surface of current divider 7
Point is connected, and the big other end of davit 6 is connected with tundish bottom or outside support.
Water trap 1 is cylinder in the present embodiment, is provided with cylindrical cavity inside the cylinder, flow-stopping plate 2 is solid slab
Shape structure, outflow port 3 are the rectangular block of a center band manhole, and davit 4 and big davit 6 are cylindrical structure, and current divider 7 is
Rectangular parallelepiped structure, the top of current divider 7 are provided with 6 through holes, and above-mentioned 6 through holes are symmetrical along the both sides of current divider 7, and from shunting
The center of device 7 increases successively to the both sides of current divider 7, the size of through hole.The bottom of current divider 7 is provided with rectangular recess.For cross section
Product is 400mm × 115mm plate slab crystallizer, and the specific size 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, external diameter 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 tilt downwards, and it is 16 ° with horizontal line angle；The size of outflow port 3 be 77mm × 65mm ×
10mm, the radius of manhole is 20mm in outflow port 3；The height of davit 4 is 14.38mm, section radius 5mm；Big davit 6 is cut
Radius surface is 10mm, length 1000mm；The size of current divider 7 is 300mm × 75mm × 25mm, and 6 of the top of current divider 7 are logical
Hole is referred to as the current divider mouth of a river 5, and the current divider mouth of a river 5 is shaped as rectangle and the combination (as shown in Figure 3) of two semicircles, current divider
The size of 7 lower rectangular grooves is 290mm × 65mm × 5mm；The upper edge positive pitch of the converging inlet 9=side opening of submersed nozzle 10
It is angled downward × 2, in the present embodiment, the side opening of submersed nozzle 10 is angled downward as 25 °, so the upper edge of converging inlet 9 is to updip
Angle takes 50 °；Casting speed takes 1.8m/min in the present embodiment, belongs to higher pulling rate in continuous casting steel billet production.The present embodiment
Liquid level fluctuation of crystallizer restraining device is made up of mild steel sections, the surfaces externally and internally brushing coat of mild steel sections.The 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 are as follows：
Step 1: prepared by mild steel parts：
Mild steel steel plate is prepared according to the structure of the liquid level fluctuation of crystallizer restraining device of the present embodiment, its surface is polished
It is coarse, welded according to above-mentioned each part dimension, make water trap 1, flow-stopping plate 2, outflow port 3, current divider 7 and converging inlet
9；It is 14.38mm to prepare four root long degree again, and section radius are 5mm mild steel cylinder and coarse, making that its surface is polished
Davit 4, four davits 4 are welded in outflow port 3, wherein the long side of the upper surface of bottom surface distance of center circle outflow port 3 of every davit 4
Distance is 5mm, is 7.31mm away from short side；It is 10mm to prepare a section radius again, and length is 1000mm mild steel cylinder
Big davit 6 is made, its surface is polished coarse and is welded on the central point of the upper surface of current divider 7；The metal frame of the present apparatus
(mechanics framework) is completed.
Step 2: coating layer material prepares：
Weigh each component according to the component requirements of coat, the coating layer material by following mass percent component group
Into：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, said components are well mixed, add water to be allowed to stir into pureed；
Step 3: coating process：
The coating layer material of step 2 is equably applied to the outer surface of mild steel sections, coat thickness is 6mm, by
It is not easy to add coat in mild steel sections inner surface, so its coat thickness is not strict with, but must assure that can not
There is mild steel exposed outside, coat thickness reaches 6mm~9mm；
Step 4: conserve and dry
By the liquid level fluctuation of crystallizer restraining device natural curing at normal temperatures 15~20 hours of step 3, by natural curing
Liquid level fluctuation of crystallizer restraining device afterwards is put into oven：Baking temperature toasts 3 hours at 80~100 DEG C；Baking temperature
150~200 DEG C are risen to, is toasted 1.5 hours；Baking temperature rises to 200~250 DEG C, toasts 1 hour；Baking temperature rises to 300~
350 DEG C, toast 1 hour；Baking is cooled to 200~250 DEG C, toasts 1 hour；80~100 DEG C are cooled to again, are toasted 1 hour,
Toast natural cooling of being come out of the stove after terminating.
The surfaces externally and internally for being attached to mild steel sections that the coat prepared using the above method can be stablized so that crystallization
Device liquid fluctuating restraining device stable performance.Found by hydraulic model trial：When pulling rate is higher, the side opening of submersed nozzle 10 can spray
The jet 13 of higher speed is projected, and then promotes liquid level fluctuation of crystallizer to aggravate, the liquid level fluctuation of crystallizer of the present embodiment suppresses dress
Put and be connected by big davit 6 with extraneous (tundish bottom or outside support), so that the device is fixed in crystallizer, passed through
The depth that the device enters molten steel is adjusted, converging inlet 9 in the device is assembled to greatest extent by the side opening of submersed nozzle 10
The jet 13 (as shown in Figure 4) ejected, cylindrical cavity convergence of the jet 13 in water trap 1, its momentum reduces, by penetrating
What stream 13 was brought into be mixed in water trap 1 moves upwardly together with molten steel, is shunted by outflow port 3 and being impacted with less momentum
Device 7, final liquid stream are flowed out by 6 current divider mouths of a river 5 on the top of current divider 7 and contacted with covering slag 11.Crystallize in the process
Device liquid level is changed into slow fluctuation by big ups and downs, and fluctuating range is smaller, will not cause the generation of slag phenomenon, meanwhile, liquid
Face keeps the less uniform melt fluctuated and promote covering slag 11.Flow-stopping plate 2 in the present embodiment in water trap 1 prevents poly-
Liquid stream is flowed out by converging inlet 9 in stream device 1, and current divider side plate 8 is located at the surrounding (bottom of current divider 7 of the lower rectangular groove of current divider 7
The surrounding of rectangular recess is referred to as current divider side plate 8), to crystallization when current divider side plate 8 can effectively stop liquid flow impact current divider 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 the device can
Optimize the flow field in crystallizer under high pulling rate, suppress the fluctuation of mold liquid level, while effectively prevent the side opening of submersed nozzle 10
The field trash that jet 13 is brought into largely enters molten steel deep, and molten steel inner clip is effectively removed while liquid level fluctuation of crystallizer is suppressed
It is miscellaneous, and then improve slab quality.In addition, what deserves to be explained is, the big davit 6 in the present invention is not to be directed to its specific size
Size is limited, and refers to the davit of main lifting current divider 7, and the big davit 6 in the present invention is referred to as：Main davit.Similarly,
Davit 4 in the present invention refers to the connector for connecting outflow port 3 and current divider 7, and the davit 4 in the present invention is referred to as：Even
Connect post.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (4)
- A kind of 1. liquid level fluctuation of crystallizer restraining device, it is characterised in that：Including conflux mechanism, diversion mechanism and bindiny mechanism, Wherein：Described conflux mechanism includes water trap (1), flow-stopping plate (2), outflow port (3), connecting tube and converging inlet (9), described Water trap (1) is a cylinder, and cylindrical cavity is provided with inside the cylinder, and water trap (1) side is provided with coupled logical Converging inlet (9), converging inlet (9) upper edge tilt upward；Flow-stopping plate (2), the flow-stopping plate are provided with inside described water trap (1) (2) junction of water trap (1) and converging inlet (9) upper edge is fixed on, flow-stopping plate (2) tilts downwards；Described water trap (1) top is provided with circular port, and the circular port is connected with the connecting tube above it；Described outflow port (3) is a center band logical The rectangular block in hole, described connecting tube are connected with the outflow port (3) above it；Described diversion mechanism includes current divider (7), and described current divider (7) is a cuboid, and current divider (7) this body is set There are 6 through holes, and the combination for being shaped as rectangle and two semicircles of through hole, current divider (7) bottom itself is provided with rectangular recess； 6 through holes on current divider (7) top are symmetrical along current divider (7) both sides, and from the center of current divider (7) to shunting Device (7) both sides, the radial section product of through hole increase successively；Described bindiny mechanism includes davit (4) and big davit (6), and four angles of described outflow port (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 current divider (7) lower surface；Described big davit (6) one end is connected with the central point of current divider (7) upper surface, and big davit (6) other end is connected with the external world；Above-mentioned conflux mechanism, diversion mechanism and bindiny mechanism is made up of mild steel sections, described mild steel sections it is inside and outside Surface is equipped with coat；The 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。
- A kind of 2. liquid level fluctuation of crystallizer restraining device according to claim 1, 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 3. liquid level fluctuation of crystallizer restraining device according to claim 2, it is characterised in that：Described flow-stopping plate (2) it is angled downward as 16 °.
- A kind of 4. liquid level fluctuation of crystallizer restraining device according to claim 3, it is characterised in that：Described big davit (6) it is connected with tundish bottom or outside support.
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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| Publication Number | Publication Date |
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| CN106180609A CN106180609A (en) | 2016-12-07 |
| CN106180609B true 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 |
| CN201610702178.XA Active CN106180609B (en) | 2015-05-12 | 2015-05-12 | A kind of liquid level fluctuation of crystallizer restraining device |
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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 |
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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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| JPH11285788A (en) * | 1998-04-07 | 1999-10-19 | Nkk Corp | Method for continuously casting large cross sectional cast bloom for thick steel plate |
| US6467704B2 (en) * | 2000-11-30 | 2002-10-22 | Foseco International Limited | Nozzle for guiding molten metal |
| DE10304543B3 (en) * | 2003-02-04 | 2004-05-27 | Sms Demag Ag | Continuous casting of liquid metals, especially liquid steel, comprises partially reducing the heat transfer number during cooling in the region of the heat flow shadow of the submerged nozzle |
| 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 |
| CN201136054Y (en) * | 2008-01-04 | 2008-10-22 | 唐山钢铁股份有限公司 | Submerged type pouring head for continuous casting jobbing sheet blank |
| CN201201043Y (en) * | 2008-06-05 | 2009-03-04 | 江阴博威合金材料有限公司 | Supply cast-rolling nozzle for cast-rolling plate |
| AT508790B1 (en) * | 2009-09-23 | 2013-11-15 | Siemens Vai Metals Tech Gmbh | METHOD AND DEVICE FOR FORGING METALLIC MELTING FOR CURRENT CAST PRODUCTS IN A CONTINUOUS CASTING MACHINE |
| IT1401311B1 (en) * | 2010-08-05 | 2013-07-18 | Danieli Off Mecc | PROCESS AND APPARATUS FOR THE CONTROL OF LIQUID METAL FLOWS IN A CRYSTALLIZER FOR CONTINUOUS THIN BRAMME BREAKS |
| CN201979058U (en) * | 2011-01-29 | 2011-09-21 | 中钢集团洛阳耐火材料研究院有限公司 | Submerged entry nozzle for thin slab billet continuous casting |
| CN202174226U (en) * | 2011-06-30 | 2012-03-28 | 宝山钢铁股份有限公司 | Strip continuous casting divided-flow distribution device |
| CN104057044B (en) * | 2014-06-06 | 2016-10-05 | 武汉科技大学 | A kind of continuous casting production inward turning type turbulence inhibitor |
| CN104624995B (en) * | 2015-02-27 | 2016-08-17 | 安徽工业大学 | The device of liquid level fluctuation of crystallizer is suppressed under a kind of high pulling rate |
| CN204449241U (en) * | 2015-02-27 | 2015-07-08 | 安徽工业大学 | The device of liquid level fluctuation of crystallizer is suppressed under a kind of high pulling rate |
| CN204603247U (en) * | 2015-05-12 | 2015-09-02 | 张鹤雄 | A kind of device of effective suppression liquid level fluctuation of crystallizer |
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| CN106077543B (en) | 2018-04-10 |
| CN104801685B (en) | 2017-03-01 |
| CN104801685A (en) | 2015-07-29 |
| CN106180609A (en) | 2016-12-07 |
| CN106077543A (en) | 2016-11-09 |
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Effective date of registration: 20230621 Address after: 528300 No.5, C07-9, Phase II, Leliugang Intensive Industrial Zone, Leliu Subdistrict, Shunde District, Foshan City, Guangdong Province (residence declaration) Patentee after: Foshan Shangding Metal Products Co.,Ltd. Address before: 243002 Building 2, No. 1669, North Section of Huolishan Avenue, Cihu High tech Zone, Ma'anshan, Anhui Province Patentee before: MAANSHAN SHANGYUAN METALLURGICAL TECHNOLOGY Co.,Ltd. |