CN206622583U - A kind of crystallizer for preventing slab defects - Google Patents
A kind of crystallizer for preventing slab defects Download PDFInfo
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- CN206622583U CN206622583U CN201720232577.4U CN201720232577U CN206622583U CN 206622583 U CN206622583 U CN 206622583U CN 201720232577 U CN201720232577 U CN 201720232577U CN 206622583 U CN206622583 U CN 206622583U
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- bosh
- crystallizer
- water tank
- supplying chamber
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- 230000007547 defect Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000005499 meniscus Effects 0.000 claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 31
- 239000000498 cooling water Substances 0.000 claims description 47
- 238000009749 continuous casting Methods 0.000 abstract description 16
- 238000001816 cooling Methods 0.000 abstract description 15
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003319 supportive effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010011655 Cushingoid Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of crystallizer for preventing defect, belong to crystallizer technology field.A kind of crystallizer for preventing defect, including copper coin and water tank, copper coin sets bosh, water tank sets an intake chamber and multiple water-supplying chamber, bosh connects with intake chamber with water-supplying chamber, at least one is arranged on meniscus surface area for the multiple water-supplying chamber, and at least one is arranged on the lower section of meniscus surface area.The sectional area of bosh diminishes in meniscus surface area, and water-supplying chamber can be with connecting valve, by controlling current to adjust the water-carrying capacity of meniscus surface area, serving reduces crystallizer meniscus area intensity of cooling, reduce meniscus area contraction change amplitude, make the formation of continuous casting billet and grow evenly, effectively prevention or reduction continuous casting billet cracking, and improves continuous casting billet quality.
Description
Technical field
A kind of crystallizer for preventing defect is the utility model is related to, belongs to crystallizer technology field, and in particular to slab, side
Blank continuous casting crystallizer technical field.
Background technology
Continuous casting billet has various defects, prevents that method caused by various defects is also a lot, wherein the generation of many defects with
Key equipment-crystallizer of continuous casting is relevant, and many defects of continuous casting billet are caused by meniscus, and meniscus nearby exports
Heat too much and derived heat it is uneven, crackle and bleed-out can be caused, in particular with people to generation efficiency requirement, draw
Fast more and more higher, nearby derived heat is more violent for meniscus, and derived heat is more uneven, thus caused crackle and
Bleed-out probability increase is more frequent.Strand heat derives rely on taking out of for continuous cast mold cooling water, and continuous casting crystallizer copper plate is cold
But the passage of water is unanimous between the higher and lower levels that the design of water is all consistent up and down.With the raising of pulling rate, it is desirable to total cooling
Water increase, heat is certainly more as derived from meniscus, because meniscus contraction change amplitude increases, and causes meniscus to export
Heat will be more uneven, defect is naturally more, frequently.
In order to prevent and treat various defects, prior art has the technological means of a variety of solutions.Notification number is the U of CN 203155963
Patent document disclose it is a kind of pour into a mould square billet novel crystallization device, on the basis of plate slab crystallizer, pass through install shunting dress
Putting realizes the production of square billet so that plate slab crystallizer production product has diversified feature；Compared to redesign square billet knot
Brilliant device, the application of part flow arrangement reduce the cost of equipment；Because part flow arrangement has the characteristics of good heat conductivity, rapid heat dissipation,
Meanwhile cooling water is passed through so that the partial heat of high-temperature molten steel is taken away through the part flow arrangement water that is cooled, and improves slab crystallization
The service life of device；In the process of setting of molten steel, each several part green shell uniformly cools down, and it grows also more uniformly, avoids casting
The generation of the defects of checking line, bulge, improve the lumber recovery of strand.
But this patent really utilizes wider plate slab crystallizer, narrow side crystallizer is inserted in width, by slab
Crystallizer is divided into several square blank crystallizers, the narrow side crystallizer because its both sides must all cool down, so both sides must all have it is cold
But water hole, rather than so-called shunting, above-mentioned document is big in the water-carrying capacity of meniscus surface area, and conduction inequality is even, without controlling stream
The part of amount, cause heat conduction uncontrollable, prevent that crack defect effect is bad.
Notification number is that the U of CN 202155493 patent document discloses a kind of wide-surface copper plate of crystallizer of continuous slab casting machine
Cooling structure, it is unreasonable for current broadside copper board of continuous casting crystallizer for thin slab blank cooling structure, cause wide face copper coin and strand temperature
Degree inhomogeneous cooling, easily cause the problems such as low copper coin severe crack, life-span, slab quality defect and improved, it is wide to crystallizer
Design is optimized in face copper coin cooling water channel, and its cooling water channel diameter reduces, quantity increase, and is distributed according to liquid steel temperature
Situation carries out reasonable layout, is effectively improved the wide face intensity of cooling of crystallizer, improves the wide face Temperature Distribution of crystallizer, reduces crystallizer
Copper coin surface temperature is poor, improves slab quality.
For above-mentioned patent tank chilling room every uneven, cooling is also uneven, is changed into water hole uniform, the temperature that can design interval
It is distributed relatively uniform.While cooling, in order to carry out heat conduction, the reduction of cooling water channel diameter, quantity increase, and root are employed
Reasonable layout is carried out according to liquid steel temperature distribution situation, is not reduced in the water-carrying capacity of meniscus surface area, it equally exists meniscus
The water-carrying capacity in region is big, and conduction inequality is even, does not control the part of flow, causes heat conduction uncontrollable, prevents crackle to lack
It is bad to fall into effect.
Utility model content
In view of this, the purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of heat conduction is uniform, in bent moon
Face region can control the device of cooling flow, solve that meniscus surface area conduction inequality present in prior art is even, flow
It is uncontrollable, technical problem the defects of so as to cause crackle.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of crystallizer for preventing defect, including copper coin and water tank, copper coin set bosh, and water tank sets a water inlet
Room and multiple water-supplying chamber, bosh connect with intake chamber with water-supplying chamber, the multiple water-supplying chamber at least one be arranged on it is curved
Lunar surface region, at least one is arranged on the lower section of meniscus surface area.
Preferably, the bosh is bosh one in meniscus surface area, is bosh two below meniscus, cold
But the sectional area of tank one is less than the sectional area of bosh two.
Preferably, intake chamber is located at water tank bottom, is connected with bosh two, at least one water-supplying chamber and bosh one
Connection, at least one water-supplying chamber connect with the lower end of the bosh one and the upper end of bosh two.
Preferably, the water-supplying chamber one connected with bosh one connects with water tank respective channel one, with the bosh
The water-supplying chamber two of one lower end and the upper end connection of bosh two connects with water tank respective channel two, the water tank respective channel
One or water tank respective channel two on valve is set.
Preferably, the intake chamber and the passage of water-supplying chamber at most have one to be not provided with flowmeter.
Preferably, the water tank backboard of increased fast changeable including between water tank and copper coin, intake chamber and water-supplying chamber's transfer
To the water tank backboard.
Preferably, the cooling water inflow that outlet pipe one flows out is the 40%~70% of total cooling water inflow.
Preferably, the cooling water inflow that outlet pipe one flows out is the 50%~60% of total cooling water inflow.
Preferably, the cooling water inflow of bosh one is adjusted by adjusting the sectional area of bosh one.
Preferably, the cooling water inflow of bosh one is controlled by adjusting the size of the valve opening degree.
The beneficial effects of the utility model are：
1st, the utility model sets bosh in copper coin, easily fabricated as the passage of cooling water, in the confession of crystallizer
Change is made on water-bound so that water-carrying capacity reduces in meniscus surface area, but total cooling water flow is constant, serves reduction knot
Jing Qi meniscus area intensity of cooling, reduce meniscus area contraction change amplitude, make the formation of continuous casting billet and grow evenly, effectively
Prevention or reduction continuous casting billet crack, and improve continuous casting billet quality, can meet requirement big to pulling rate in the prior art.
2nd, by setting tap hole, flow is reduced by before current reach meniscus surface area, can be effectively acted as uniformly
The effect of cooling.
3 and can with integrated use control water stream channel sectional area or set valve technological means come specifically adjust
By the water-carrying capacity of meniscus surface area, the sectional area under the sectional area of the passage in meniscus area is less than, or in water tank phase
Answer passage that valve is set, water-carrying capacity is controlled by the accurate adjustment of valve, current reach the through-current capacity reduction of meniscus area, reached
To the technique effect of accurate control cooling effect so that the water in control meniscus area is very handy, changes meniscus area
Cooling water inflow, make the cooling water inflow in meniscus area reduce, meniscus area intensity of cooling reduce, heat flow density reduce, meniscus
Region extends, and heat transfer is relatively uniform, and, cooling water inflow is not reduced to crystallizer generally speaking, and overall cooling capacity does not change
Become, the factor that continuous casting defect is produced in meniscus surface area substantially reduces, and can effectively eliminate continuous casting defect, the water-flowing amount control of meniscus area
System is not only improved and reduces continuous casting defect, avoid bonding steel leakage again the 40%~80% of total Water.
4th, the utility model can set flowmeter, come the accurate flow determined by meniscus surface area, convenient research
Flow is on influence caused by defect, so as to specifically chosen suitable flow parameter.
5th, the utility model, which also provides, can be easy for installation and removal with quick-replaceable backboard, reduce labor intensity.
6th, for the utility model by specifically testing, the flow for finally obtaining suitable meniscus surface area is 40%~70%,
Preferably 50%~60%, under this flow, crack defect is few, and continuous casting quality significantly improves.
Brief description of the drawings
Fig. 1 is the crystallizer sectional elevation schematic diagram for the tank that meniscus surface area shoals.
Fig. 2 is the copper plate of crystallizer sink surface schematic diagram that meniscus tank narrows.
Fig. 3 is the crystallizer sectional elevation schematic diagram for the tank that meniscus surface area narrows.
Fig. 4 is the crystallizer sectional elevation schematic diagram that crystallizer water tank is made up of water tank and water tank backboard.
Fig. 5 is another schematic diagram for the crystallizer sectional elevation that crystallizer water tank is made up of water tank and water tank backboard.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment one:As shown in figure 1, a kind of crystallizer for preventing defect, including copper plate of crystallizer 1 and to crystallizer copper
Plate plays a supportive role and cooled down the crystallizer water tank 2 of water flowing effect, and crystallizer water tank one intake chamber 3 of setting and two go out
Hydroecium, the 4a of the water-supplying chamber one and 4b of water-supplying chamber two, the intake chamber 3 connect with water inlet pipe 5, the 4a of water-supplying chamber one and outlet pipe one
6a is connected, and the 4b of water-supplying chamber two connects with the 6b of outlet pipe two, and valve 7, the outlet pipe two are set on the 6b of outlet pipe two
6b connects with valve 7, and the copper plate of crystallizer sets multiple equally distributed boshes, and the bosh is divided into two
Point, Part I be normal bosh 1, and Part II is the bosh 29 to be shoaled in meniscus surface area, the knot
The 4a of water-supplying chamber one of brilliant device water tank connects with bosh 29, the 4b of water-supplying chamber two and the cooling water of the crystallizer water tank
The lower end of groove 29 connects with the top of bosh 1, that is, flows into the cooling water of crystallizer water tank, a part is through the cooling
Tank 29 and the 4a of the water-supplying chamber one flow out with the 6a of outlet pipe one, another part cooling water without the bosh 29, and
That the 4b of water-supplying chamber two and the 6b of outlet pipe two and valve 7 are directly entered by the top of bosh 1 and flowed out, it is described enter
Flowmeter 10 is set on water pipe 5, flowmeter 11 is set on the 6a of outlet pipe one, flowmeter is set on the 6b of outlet pipe two
12, by the size of sectional area and the size of the opening degree of the valve 7 for controlling the bosh 29, so as to realize convection current
The control of cooling water inflow through the bosh 29 and the 4a of the water-supplying chamber one and 6a of outlet pipe one outflows, wherein flowing through institute
State the cooling water inflow of bosh 29 and the 4a of the water-supplying chamber one and the 6a of outlet pipe one outflows for total cooling water inflow 40%~
50%。
Embodiment two:As shown in Figure 2 and Figure 3, a kind of crystallizer for preventing slab defects, including copper plate of crystallizer 1 and right
Copper plate of crystallizer plays a supportive role and cooled down the crystallizer water tank 2 of water flowing effect, and the crystallizer water tank sets an intake chamber 3
Connected with Liang Ge water-supplying chamber, the 4a of water-supplying chamber one and the 4b of water-supplying chamber two, the intake chamber 3 with water inlet pipe 5, the 4a of water-supplying chamber one and
The 6a of outlet pipe one is connected, and the 4b of water-supplying chamber two connects with the 6b of outlet pipe two, and valve 7 is set on the outlet pipe 6b bis-, described
The 6b of outlet pipe two connects with valve 7, and the copper plate of crystallizer sets multiple equally distributed boshes, the bosh point
For two parts, Part I is normal bosh 1, and Part II is the bosh 29 to narrow in meniscus surface area,
The 4a of water-supplying chamber one of the crystallizer water tank connects with bosh 29, the 4b of water-supplying chamber two of the crystallizer water tank with it is described
The lower end of bosh 29 connects with the top of bosh 1, that is, flows into the cooling water of crystallizer water tank, a part is through institute
State bosh 29 and the 4a of the water-supplying chamber one to flow out with the 6a of outlet pipe one, another part cooling water is without the bosh
29, but the 4b of the water-supplying chamber two and 6b of outlet pipe two and valve 7 are directly entered by the top of bosh 1 and flowed out,
Flowmeter 10 is set on the water inlet pipe 5, flowmeter 11 is set on the 6a of outlet pipe one, by controlling the bosh two
The size of the size of 9 sectional area and the opening degree of the valve 7, so as to realize to flow through the bosh 29 and it is described go out
The control of the cooling water inflow of the 4a of the hydroecium one and 6a of outlet pipe one outflows, wherein flowing through the bosh 29 and the water-supplying chamber
The cooling water inflow of the one 4a and 6a of outlet pipe one outflows is the 60%~70% of total cooling water inflow.
Embodiment three：As shown in figure 4, a kind of crystallizer for preventing slab defects, including copper plate of crystallizer 1 and to crystallization
Device copper coin play a supportive role and cool down the crystallizer water tank of water flowing effect, the crystallizer water tank, including water tank 2a and water tank with
The water tank backboard 2b of increased fast changeable between copper plate of crystallizer, intake chamber 3 and water-supplying chamber one are set on the water tank backboard
4a, the 4b of water-supplying chamber two, the intake chamber 3 connect with water inlet pipe 5, the 4a of water-supplying chamber one and water tank 2a respective channels and outlet pipe
One 6a is connected, and the 4b of water-supplying chamber two is connected with water tank 2a respective channels and the 6b of outlet pipe two, set on the 6a of outlet pipe one
Valve 7, the 6a of outlet pipe one connect with valve 7, and the copper plate of crystallizer sets multiple equally distributed boshes, described
Bosh is divided into two parts, and Part I is normal bosh 1, and Part II is cold to be shoaled in meniscus surface area
But tank 29, the 4a of water-supplying chamber one of the crystallizer water tank connect with bosh 29, the water-supplying chamber of the crystallizer water tank
Two 4b connect with the lower end of the bosh 29 and the top of bosh 1, that is, flow into the cooling water of crystallizer water tank,
A part flows out through the bosh 29 and the 4a of the water-supplying chamber one and 6a of outlet pipe one, and another part cooling water is without institute
Bosh 29 is stated, but the 4b of the water-supplying chamber two and 6b of outlet pipe two is directly entered by the top of bosh 1 and flowed
Go out, flowmeter 10 is set on the water inlet pipe 5, flowmeter 12 is set on the 6b of outlet pipe two, by controlling the cooling water
The size of the size of the sectional area of groove 29 and the opening degree of the valve 7, so as to realize to flowing through the bosh 29 and institute
State the control of the cooling water inflow of the 4a of water-supplying chamber one and the 6a of outlet pipe one outflow, wherein flow through the bosh 29 and it is described go out
The cooling water inflow of the 4a of the hydroecium one and 6a of outlet pipe one outflows is the 70%~80% of total cooling water inflow.
Example IV:As shown in figure 5, a kind of crystallizer for preventing slab defects, including copper plate of crystallizer 1 and to crystallization
Device copper coin plays a supportive role and cooled down the crystallizer water tank of water flowing effect, the crystallizer water tank, including water tank and water tank and knot
The water tank backboard of increased fast changeable between brilliant device copper coin, intake chamber 3 and the 4a of water-supplying chamber one are set on the water tank backboard, gone out
The 4b of hydroecium two, the intake chamber 3 connect with water inlet pipe 5, and the 4a of water-supplying chamber one connects with water tank respective channel and the 6a of outlet pipe one
Logical, the 4b of water-supplying chamber two is connected with water tank respective channel and the 6b of outlet pipe two, and valve 7, institute are set on the 6b of outlet pipe two
State the 6b of outlet pipe two to connect with valve 7, the copper plate of crystallizer sets multiple equally distributed boshes, the bosh
It is divided into two parts, Part I is normal bosh 1, and Part II is the bosh two to narrow in meniscus surface area
9, the 4a of water-supplying chamber one of the crystallizer water tank connects with bosh 29, the 4b of water-supplying chamber two of the crystallizer water tank and institute
The lower end for stating bosh 29 connects with the top of bosh 1, that is, flows into the cooling water of crystallizer water tank, part warp
The bosh 29 and the 4a of the water-supplying chamber one flow out with the 6a of outlet pipe one, and another part cooling water is without the cooling water
Groove 29, but the 4b of the water-supplying chamber two and 6b of outlet pipe two and valve 7 are directly entered by the top of bosh 1 and flowed
Go out, flowmeter 11 is set on the 6a of outlet pipe one, flowmeter 12 is set on the 6b of outlet pipe two, by controlling the cooling
The size of the size of the sectional area of tank 29 and the opening degree of the valve 7, so as to realize to flowing through the He of bosh 29
The control of the cooling water inflow of the 4a of water-supplying chamber one and the 6a of outlet pipe one outflow, wherein flowing through the bosh 29 and described
The cooling water inflow of the 4a of the water-supplying chamber one and 6a of outlet pipe one outflows is the 50%~60% of total cooling water inflow.
Finally illustrate, above example only to illustrate the technical solution of the utility model and unrestricted, this area
Other modifications or equivalent substitution that those of ordinary skill is made to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, it all should cover among right of the present utility model.
Claims (10)
1. a kind of crystallizer for preventing defect, it is characterised in that including copper coin and water tank, copper coin sets bosh, and water tank is set
Put an intake chamber and multiple water-supplying chamber, bosh connect with intake chamber with water-supplying chamber, the multiple water-supplying chamber at least one
Individual to be arranged on meniscus surface area, at least one is arranged on the lower section of meniscus surface area.
2. a kind of crystallizer as claimed in claim 1, it is characterised in that the bosh is cooling water in meniscus surface area
Groove one, meniscus lower section are bosh two, and the sectional area of bosh one is less than the sectional area of bosh two.
3. a kind of crystallizer as claimed in claim 2, it is characterised in that intake chamber is located at water tank bottom, with bosh two
Connection, at least one water-supplying chamber connects with bosh one, the lower end of at least one water-supplying chamber and the bosh one and cold
But the upper end connection of tank two.
A kind of 4. crystallizer as described in claim any one of 1-3, it is characterised in that the water-supplying chamber connected with bosh one
One connects with water tank respective channel one, the water-supplying chamber two connected with the lower end of the bosh one and the upper end of bosh two
Connected with water tank respective channel two, valve is set in the water tank respective channel one or water tank respective channel two.
5. a kind of crystallizer as described in claim any one of 1-3, it is characterised in that the intake chamber and the passage of water-supplying chamber
At most there is one to be not provided with flowmeter.
6. a kind of crystallizer as claimed in claim 5, it is characterised in that including increased fast changeable between water tank and copper coin
Water tank backboard, intake chamber and water-supplying chamber are transferred to the water tank backboard.
7. a kind of crystallizer as claimed in claim 5, it is characterised in that the cooling water inflow that outlet pipe one flows out is total cooling water
The 40%~70% of amount.
8. a kind of crystallizer as claimed in claim 7, it is characterised in that the cooling water inflow that outlet pipe one flows out is total cooling water
The 50%~60% of amount.
9. a kind of crystallizer as described in claim any one of 2-3, it is characterised in that by the section for adjusting bosh one
The cooling water inflow of product regulation bosh one.
10. a kind of crystallizer as claimed in claim 4, it is characterised in that by the size control for adjusting the valve opening degree
The cooling water inflow of bosh one processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720232577.4U CN206622583U (en) | 2017-03-10 | 2017-03-10 | A kind of crystallizer for preventing slab defects |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720232577.4U CN206622583U (en) | 2017-03-10 | 2017-03-10 | A kind of crystallizer for preventing slab defects |
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| CN206622583U true CN206622583U (en) | 2017-11-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825465A (en) * | 2017-03-10 | 2017-06-13 | 西峡龙成特种材料有限公司 | A kind of crystallizer for preventing slab defects |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825465A (en) * | 2017-03-10 | 2017-06-13 | 西峡龙成特种材料有限公司 | A kind of crystallizer for preventing slab defects |
| CN106825465B (en) * | 2017-03-10 | 2019-02-22 | 西峡龙成特种材料有限公司 | A kind of crystallizer preventing slab defects |
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