CN1136481A - Internal and external spray type attached crystillizer and its cooling control method - Google Patents
Internal and external spray type attached crystillizer and its cooling control method Download PDFInfo
- Publication number
- CN1136481A CN1136481A CN 96103298 CN96103298A CN1136481A CN 1136481 A CN1136481 A CN 1136481A CN 96103298 CN96103298 CN 96103298 CN 96103298 A CN96103298 A CN 96103298A CN 1136481 A CN1136481 A CN 1136481A
- Authority
- CN
- China
- Prior art keywords
- wallboard
- cooling
- water
- shape
- internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invented method bends the wall plate into mold cavity, the internal spray nozzles are uniformly installed on outside of the wall plate, corresponding to the internal spray nozzles, the water distributing slots are cut from top to bottom of the inside of the wall plate, the water spray pipes are installed on the periphery of the wall plate, the external water spray nozzles are installed uniformly on the external water spray pipes. The casting is directly cooled by the cool waters sprayed by internal spray nozzles, the wall plate is cooled by the coolwater sprayed by external spray nozzles, so that the casting is indirectly cooled and the safety of the equipment is ensured. The strength of the cooling water is controlled at the spray water density being 0-20 1/m2s for internal cooling water and 2-100 1/m2.s for external cooling water.
Description
The invention belongs to the continuous casting of metal field.
In tradition continuous casting process, the metal freezing shell forms in crystallizer, and scull keeps shape under the support of crystallizer copper wall, cooling water cools off scull indirectly by the copper wall, after the base shell was drawn out crystallizer with certain speed, the cooling of can directly being sprayed water also can obtain the support of some rollers.
Above process exists scull all the time and supports and cooling contradiction spatially, at the initial stage (promptly on crystallizer top) that the base hull shape becomes, because scull is thinner, it contacts well with the copper wall, scull obtains good supporting and cooling simultaneously, but (1) between crystallizer lower copper wall and base shell, form air gap, greatly reduce heat-transfer effect, influenced productivity ratio.(2) after the base shell was pulled out crystallizer, the support of sufficient roller was local, still can not prevent breaking or breaking of some defectiveness scull.(3) particularly along with the raising of pulling rate, thinner at the scull in crystallizer exit when requiring evenly strong cooling, need complete support, the water spray cooling in sufficient roller district is uneven.
The cooling water control method of the continuous cast mold that uses in the actual production all is given in addition---least quantity, to guarantee handling safety, on its tangible this least quantity, regulating pondage (or hydraulic pressure) is little to the intensity of cooling influence of crystallizer, and the crystallizer intensity of cooling in the actual production can not On-line Control thus.
The object of the present invention is to provide a kind of scull of continuous cast mold bottom that makes to obtain good supporting, can obtain again and can cool off by the direct and indirect of online regulation and control, help improving the speed of continuous casting and the internal and external spray type attached crystillizer and the cooling control method of minimizing bleedout.
Based on the foregoing invention purpose, internal and external spray type attached crystillizer of the present invention, be installed on the below of traditional crystallizer, its characteristics are: it surrounds a shape chamber by wallboard, the inboard of wallboard evenly is carved with some cloth tanks from top to bottom, corresponding inboard cloth tank position, the outside of wallboard, evenly being equipped with can be to the inner nozzle of cloth tank water spray, inner nozzle is connected on the interior sparge pipe by flexible pipe, the periphery of wallboard evenly is equipped with outer nozzle along the outer sparge pipe that can cool off wallboard that is equipped with in a week of wallboard on the outer sparge pipe.
According to above-mentioned crystallizer, its characteristics are that also shape of cross section, size and the outlet of last crystallizer in described shape chamber adapt, can be polygon, garden shape or other combination shape, the longitudinal section in described shape chamber is straight shape or arc, the length of wallboard is 100～1500mm, thickness is 8～75mm, and the water distribution groove width is 2～40mm, is 2～10mm deeply.
Cool off the method for above-mentioned crystallizer and strand, its cooling medium is a water, is characterized in: it is 0～20l/m that inner nozzle cools off average water discharge density
2.s; Outer nozzle cools off average water discharge density 2～100l/m
2.s.
The present invention installs below crystallizer, can one section use, also can equip successively by multistage.Described wallboard is processed by metal tubes such as copper, plate, and wallboard can be whole tubulose, also can be combined by several plates, in order to reach the reasonable intensity of cooling of strand requirement, must control automatically the inside and outside cooling water inflow of additional crystallization device.Controller adopts computer or instrument, special-purpose control software is installed in the controller, collect from cast section, casting kind, pulling rate, the liquid steel temperature signal of casting machine, collect strand temperature and inside and outside cooling water flow, pressure and other parameters, through the processing of control model, regulate automatic valve respectively to reach the intensity of cooling of cooling off inside and outside the control additional crystallization device.
Compared with prior art, the invention has the advantages that: its integrated application in cold---promptly directly cooling and external cooling---is promptly indirect cools off, both can make strand obtain favorable cooling effect, and guarantee device security again, simultaneously inside and outside intensity of cooling can be regulated and control respectively again as required.Compare with sufficient roller mode, this additional crystallization device has been realized complete support and cooling uniformly to the base shell under the crystallizer.Of the present invention being applied in shows minimizing bleed-out accident in the production practices, improve casting speed, improves the positive effect of conticaster productivity ratio.
Below in conjunction with accompanying drawing additional crystallization device of the present invention is described further.
Fig. 1 is the generalized section of facing of additional crystallization device of the present invention.
Among Fig. 1,1 is crystallizer, and 2 is outer nozzle, and 3 is outer sparge pipe, and 4 is interior sparge pipe, and 5 is joint, and 6 is flexible pipe, and 7 is temperature transducer, and 8 is the metal wallboard, and 9 is the shape chamber, and 10 is inner nozzle, and 11 is the cloth tank.
Fig. 2 is the schematic flow sheet of cooling control method of the present invention.
Among Fig. 2, A is a controller, the casting machine signal of B for collecting, and the base temperature signal of C for collecting, D is a cooling water source, and E is for leading to interior sparge pipe, and F is for leading to outer sparge pipe, and Q is a flow transmitter, P is a pressure transmitter.
The present invention is installed on the below of crystallizer 1, it encloses forming cavity 9 by metal wallboard 8, wallboard 8 inboards evenly are carved with some cloth tanks 11 from top to bottom, corresponding every the cloth tank in wallboard 8 outsides is evenly installed inner nozzle 10, inner nozzle 10 is connected with interior sparge pipe 4 by flexible pipe 6, joint 5, outer sparge pipe 3 is positioned at the periphery of wallboard 8, on the outer sparge pipe 3 outer nozzle 2 is installed evenly.
During work; interior sparge pipe 4 supplies cooling water by joint 5, flexible pipe 6, inner nozzle 10 in cloth tank 11; in order to the strand of cooling by shape chamber 9; and outer sparge pipe 3 is sprayed on cooling water the outside of wallboard 8 equably by outer nozzle 2; this one side protective bulkhead plate 8 is not burnt by the hot-cast base; on the other hand strand is played indirect cooling effect, for improving the cooling effect of outer nozzle, can be at wallboard 8 outsides processing ditch, groove etc.Reasonably intensity of cooling then is to arrive controller by strand temperature signal and casting machine signal feedback that thermometric degree sensor 7 is collected, is controlled by controller, and concrete scope is that the average water discharge density of interior cooling is 0～20l/m
2.s; Outer cooling water discharge density 2～100l/m
2.s, show that the present invention can reach 100～4000W/m to the integrated heat transfer coefficient of strand cooling by test
2. ℃.
Claims (3)
1, a kind of internal and external spray type attached crystillizer, be installed on the below of traditional crystallizer, it is characterized in that: it surrounds a shape chamber by wallboard, the inboard of wallboard is carved with some cloth tanks from top to bottom equably, corresponding inboard cloth tank position, the outside of wallboard, evenly being equipped with can be to the inner nozzle of cloth tank water spray, and inner nozzle is connected on the interior sparge pipe by flexible pipe, the periphery of wallboard evenly is equipped with outer nozzle along the outer sparge pipe that can cool off wallboard that is equipped with in a week of wallboard on the outer sparge pipe.
2, crystallizer according to claim 1; It is characterized in that: the shape of cross section in described shape chamber, size and the outlet of last crystallizer adapt, can be polygon, garden shape or other combination shape, the longitudinal section in described shape chamber is straight shape or arc, the length of wallboard is 100～1500mm, thickness is 8～75mm, the water distribution groove width is 2～40mm, is 2～10mm deeply.
3, a kind of control method of cooling off claim 1 or 2 described crystallizers and strand, its cooling medium is a water, adopt the special use control software of installing in the controller, collect from cast section, casting kind, pulling rate, liquid steel temperature signal and collection strand temperature, inside and outside cooling water flow and the pressure and other parameters of casting machine, handle by the control model, reach the purpose that additional crystallization and strand are cooled off in control to regulate automatic valve, it is characterized in that: the average water discharge density of control inner nozzle cooling is 0～20l/m
2.s; Outer nozzle cools off average water discharge density 2～100l/m
2.s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103298A CN1053132C (en) | 1996-03-26 | 1996-03-26 | Internal and external spray type attached crystillizer and its cooling control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103298A CN1053132C (en) | 1996-03-26 | 1996-03-26 | Internal and external spray type attached crystillizer and its cooling control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1136481A true CN1136481A (en) | 1996-11-27 |
| CN1053132C CN1053132C (en) | 2000-06-07 |
Family
ID=5117967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96103298A Expired - Lifetime CN1053132C (en) | 1996-03-26 | 1996-03-26 | Internal and external spray type attached crystillizer and its cooling control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1053132C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722287B (en) * | 2008-11-03 | 2012-07-18 | 攀钢集团研究院有限公司 | Method for cooling continuous casting blanks and method for producing continuous casting billets comprising same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5190593A (en) * | 1991-02-21 | 1993-03-02 | Kurzinski Cass R | Apparatus and method for cleaning the outside of the mold tube in a continuous casting machine |
-
1996
- 1996-03-26 CN CN96103298A patent/CN1053132C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722287B (en) * | 2008-11-03 | 2012-07-18 | 攀钢集团研究院有限公司 | Method for cooling continuous casting blanks and method for producing continuous casting billets comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1053132C (en) | 2000-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101507456B1 (en) | A process and a plant for the production of metal strip | |
| CN100475385C (en) | Method for cooling narrow surface of continuous casting foot roller section of low alloy steel plate blank of straight arc casting machine | |
| US4658882A (en) | Machine for direct rolling of steel casting and producing steel product therefrom | |
| US4424855A (en) | Method for cooling continuous casting | |
| US2770021A (en) | Method of and apparatus for continuous casting | |
| US6006574A (en) | Apparatus and method for cooling the work rolls of a roll stand at an exit side thereof | |
| KR19990076770A (en) | Formable steel manufacturing method and apparatus | |
| HU201143B (en) | Method for cooling rotary furnace with coolant | |
| KR100304759B1 (en) | Continuous casting equipment operation method | |
| US2708297A (en) | Continuous casting apparatus | |
| CN215431458U (en) | After-cooling device of short-process continuous casting withdrawal and straightening unit | |
| US3693352A (en) | Method and apparatus for cooling wide continuous metal castings, particularly steel castings | |
| CN1053132C (en) | Internal and external spray type attached crystillizer and its cooling control method | |
| JP4321325B2 (en) | Secondary cooling method for continuous cast slabs | |
| CN104014752B (en) | A kind of semicontinuous many ingot casting casting systems of vertical direct water-cooling | |
| CN111014597B (en) | Cooling method and cooling device for high-pulling-speed continuous casting machine | |
| KR100923269B1 (en) | Method and device for draining waste water in the inner bend of a beam blank casting machine | |
| RU2147262C1 (en) | Method for guiding continuous billets in continuous casting plant and apparatus for its embodiment | |
| CN101514873A (en) | Replacement method of low-power inductor and special cooling water jacket thereof | |
| JP3157635B2 (en) | Lower surface cooling device for high temperature metal plate | |
| CN2303697Y (en) | Semi-closed-circuit circulation type water-spraying cooling crystallizer | |
| CN214023377U (en) | Cooling device and continuous casting machine with same | |
| CN212734078U (en) | Anti-adhesion device for refined lead ingot production | |
| CN115608944A (en) | Method for uniformly regulating and controlling solidification structure of casting blank | |
| GB2073074A (en) | Producing an improved quality continuous casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |