CN102248138B - Horizontal continuous casting crystallizer capable of realizing circumferential uniform cooling - Google Patents
Horizontal continuous casting crystallizer capable of realizing circumferential uniform cooling Download PDFInfo
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- CN102248138B CN102248138B CN 201110207276 CN201110207276A CN102248138B CN 102248138 B CN102248138 B CN 102248138B CN 201110207276 CN201110207276 CN 201110207276 CN 201110207276 A CN201110207276 A CN 201110207276A CN 102248138 B CN102248138 B CN 102248138B
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Abstract
The invention relates to a horizontal continuous casting crystallizer, which comprises a plurality of cooling water cavities distributed circumferentially, wherein the plurality of cooling water cavities are mutually independent. By controlling the water pressure, water quantity, inflow temperature and other parameters of the plurality of cooling water cavities, the phenomenon of non-uniform cooling in the horizontal continuous casting process can be effectively improved, and the quality of a continuous casting billet is increased. The crystallizer can be used in the horizontal continuous casting process of round bar billets, square billets, flat billets, slabs and inregular billets made of ferrous metals and non-ferrous metals.
Description
Technical field
The invention belongs to the metallurgical casting technical field, a kind of horizontal casting crystallizer is provided, this crystallizer has comprised circumferential distribution and separate a plurality of cooling water cavities.
Background technology
In the metallurgical casting industry, the crystallizer that ferrous metal and non-ferrous metal horizontal casting adopt generally adopts the single stage type cooling, namely only have a water inlet and a delivery port, therefore in the horizontal continuous casting technology field, exist a long-term insoluble technical problem to be: in the horizontal casting process, because gravity can produce downward effect to solidifying rear strand, after causing casting blank solidification to shrink and the gap that forms between the crystallizer is inhomogeneous, underclearance is less than upper gap, thisly inhomogeneously cause that continuous casting billet is inner to form inhomogeneous or asymmetric tissue, when serious even casting billet surface or inside are cracked.Mainly containing following 3 kinds for improving one's methods of the even problem of inhomogeneous cooling in this horizontal casting process at present (sees: Zhong Weijia etc., copper process technology application manual, metallurgical industry publishing house, (2007), p.407): (1) arranges carrying roller to adjust above-mentioned gap in crystallizer outlet appropriate location, its main regulating action is the strand near the crystallizer port of export, and it is limited to the strand corrective action near the crystallizer arrival end, yet higher in the temperature near the strand of crystallizer arrival end, the heat exchange amount is larger, affects just the key component of horizontal continuous casting blank quality.(2) improve the mode that molten metal enters crystallizer by Design of Dies, for example incite somebody to action up and down the uniformly method of salary distribution, change up and down inhomogeneous or asymmetric mode into, so that molten metal enters crystallizer from the bottom.This method is limited to adjustment degree inhomogeneous about the horizontal casting heat transfer.(3) the water-cooled copper plug device is set in graphite jig, when the depth ratio upper side wall of the water-cooled copper plug that is positioned at the graphite jig lower wall hour, can improves the up and down even phenomenon of inhomogeneous cooling.Obviously, this method is only applicable to the horizontal casting of the larger large scale strand of graphite jig Thickness Ratio.
Summary of the invention
The object of the invention is to solve the strand even problem of inhomogeneous cooling up and down in the horizontal casting process, a kind of crystallizer that can carry out to the cooling of different parts independent regulation and control is provided.
In order to realize that purpose of the present invention proposes a kind of evenly horizontal continuous casting crystallizer of cooling of realizing circumferentially, be used for horizontal continuous casting heat preserving furnace, described horizontal continuous casting crystallizer is circumferentially designing a plurality of independently cooling water cavities, each cooling water cavity has water inlet 3 and delivery port 4, respectively independent water inlet and independent water outlet; By cooling water flow, pressure, the cooling water temperature parameter of regulating each cooling water cavity, realize control and cooling uniformity control to the circumferential different parts intensity of cooling of described horizontal continuous casting crystallizer.
The structure of described horizontal continuous casting crystallizer specifically comprises water cooling copper sleeve 1, mounting flange 2, box hat 5 and 6, isolated part 13, a plurality of water inlet 3 and delivery port 4; Wherein, the inner chamber of described water cooling copper sleeve 1 is used for installation mold, and described mounting flange 2 is used for described horizontal continuous casting crystallizer is fixed in horizontal continuous casting heat preserving furnace; By described box hat 5 and 6, water cooling copper sleeve 1 and mounting flange 2 common looping cooling water cavities, described annular cooling water chamber is isolated in a circumferential direction parts 13 and is divided into a plurality of mutually disconnected independently cooling water cavities 14,15,16,17, each cooling water cavity all arranges a corresponding water inlet 3 and delivery port 4, and the quantity of water inlet 3 and delivery port 4 equates with the quantity of cooling water cavity independently.
Described horizontal continuous casting crystallizer also comprises the sealing ring at supported flange 7 and two ends, makes box hat 5 and 6 by described supported flange 7 and sealing ring, and water cooling copper sleeve 1 and mounting flange 2 fitting tights guarantee that described annular cooling water chamber is water-tight.
Described horizontal continuous casting crystallizer also comprises isolated part 8 and 9, passage 11 3 parts that described independently cooling water cavity is separated into intake antrum 10, water chamber 12 and is communicated with between them by described isolated part 8 and 9; Cooling water enters described intake antrum 10 by described water inlet 3, is full of intake antrum 10 and enters described water chamber 12 by described passage 11 afterwards, and finally flow out cooling water cavities by described delivery port 4 after being full of.
Described isolated part 8 is cylindrical shape, and isolated part 9 is annular, and described isolated part 8 and 9 links together in a circumferential direction by welding; Described box hat 5 is cylindrical shape, links together in a circumferential direction by welding with described isolated part 9, forms the passage of cooling water in described cooling water cavity.
The present invention can be used for the ferrous metal of circle, rectangle and other profiled-cross-sections, horizontal continuous casting process and the horizontal casting combined forming process of non-ferrous metal, and crystallizer provided by the invention has the following advantages:
(1) parameters such as the cooling water flow of each cooling water cavity, temperature all can independently be adjusted, until reach required cooling effect, are adapted to especially the not strong rectangle of cross sectional shape symmetry own and the horizontal casting of Hot Metal in Beam Blank.
(2) water yield of each water cavity of crystallizer all can be adjusted online, by the form of Real-Time Monitoring crystallization line, can realize the automatic feedback control that the crystallizer water yield is adjusted.
Description of drawings
Fig. 1 is the front view of a kind of mold structure of proposing of the present invention,
Fig. 2 is the A-A face profile of Fig. 1.
Fig. 3 is the assembling schematic diagram of crystallizer provided by the invention and graphite jig.
Fig. 4 is that the A of Fig. 3 is to view.
Among the figure
| [0001]1 water cooling copper sleeve | [0002]11 cooling-water ducts |
| [0003]2 mounting flanges | [0004]12 water chambers |
| [0005]3 water inlets | [0006]13 isolated parts |
| [0007]4 delivery ports | [0008]14 independent water cavities |
| [0009]5 box hats | [0010]15 independent water cavities |
| [0011]6 box hats | [0012]16 independent water cavities |
| [0013]7 supported flanges | [0014]17 independent water cavities |
| [0015]8 isolated parts | [0016]18 crystallizer graphite liners |
| [0017]9 isolated parts | [0018]19 graphite centre rods |
| [0019]10 intake antrums | [0020]20 molten metal pod apertures. |
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment and cooperate accompanying drawing, the present invention is described in more detail.
Fig. 1 is the front view of a kind of mold structure of proposing of the present invention, and Fig. 2 is the A-A face profile of Fig. 1.As shown in the figure, described many water cavities horizontal continuous casting crystallizer comprises the assemblies such as water cooling copper sleeve 1, mounting flange 2, box hat 5 and 6, isolated part 8,9 and 13, supported flange 7, water inlet 3 and delivery port 4.The inside of water cooling copper sleeve 1 is used for installation mold, and mounting flange 2 is used for crystallizer is fixed in horizontal continuous casting heat preserving furnace.By box hat 5 and 6, water cooling copper sleeve 1 and mounting flange 2 common looping cooling water cavities, the sealing ring by supported flange 7 and two ends makes the each part mentioned above fitting tight, guarantees that the annular cooling water chamber is water-tight.Described annular cooling water chamber is isolated in a circumferential direction parts 13 and is divided into a plurality of mutually disconnected independently cooling water cavities, each cooling water cavity all has a corresponding water inlet 3 and delivery port 4, and the quantity of water inlet 3 and delivery port 4 equates with the quantity in independent cooling water chamber.Each described independent cooling water chamber is isolated again parts 8 and 9 and is separated into three parts, is respectively intake antrum 10, water chamber 12 and the passage 11 that is communicated with between them.Cooling water enters intake antrum 10 by cooling water intake 3, is entering water chamber 12 by passage 11 after being full of intake antrum 10, and finally flows out the independent cooling water chambeies by delivery port 4 afterwards being full of 12.Cooling water is realized the pressure cooling to water cooling copper sleeve 1 in the process of described passage 11 of flowing through.Above-mentioned to separate the method for control into and out of cooling water, high-temperature cooling water after can avoiding entering the low-temperature cooling water of crystallizer separate chamber and passing through heat exchange mixes, thereby the temperature of cooling water that can control the participation cooling heat transferring of the passage 11 of flowing through is steady state value, improves stability and the cooling effectiveness of cooling.Isolated part 13 and water cooling copper sleeve 1, box hat 5 and 6 and isolated part 8 and 9 between combination tight, to guarantee each other sealing between the water cavity, wherein, isolated part 8 is cylindrical shape, isolated part 9 is annular, and isolated part 8 and 9 can link together in a circumferential direction by welding; Box hat 5 is cylindrical shape, and isolated part 9 can link together in a circumferential direction by welding and box hat 5.Cooling water cavity quantity can be 4 independent water cavities shown in Fig. 2 for more than 2 or 2, is denoted as 14,15,16,17.In the horizontal casting process, by intake pressure and the flow of adjusting different cooling water cavities, as strengthening the water yield of top cooling water cavity 14, reduce the water yield of bottom cooling water cavity 16, reach and cool off up and down uniform purpose.
Fig. 3 is the assembling schematic diagram of crystallizer provided by the invention and graphite jig, and Fig. 4 is that the A of Fig. 3 is to view.As shown be a specific embodiment of the present invention.This embodiment is 50 * 30 * 3mm rectangle pure copper tube blank horizontal casting special crystallizer, and the transversal face width 50mm of rectangle copper pipe, high 30mm, pipe thickness 3mm adopt 4 water cavity crystallizers to carry out horizontal casting.Adopt the high purity graphite mould during horizontal casting, adopt cone match between graphite liner 18 and the crystallizer, as shown in Figure 3, Fig. 4 be among Fig. 3 A to structural representation.Copper liquid enters from the pod apertures 20 between graphite liner 13 and the graphite centre rod 19.During the rectangle horizontal continuous casting of copper, 1200 ℃ of copper liquid temperatures, hydraulic pressure is 0.3MPa, the cooling water inflow of top water cavity 14 is 400L/h, the cooling water inflow of bottom water cavity 16 is 200L/h, and the cooling water cavity 15 of the left and right sides and 17 the water yield are 300L/h, and casting speed is 60mm/min, the throwing mode adopts " drawing-stop-La ", can obtain straight, the flawless rectangle fine copper of crystallization line pipe.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect have been carried out further detailed description; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. realize circumferentially the evenly horizontal continuous casting crystallizer of cooling for one kind, be used for the horizontal casting system, it is characterized in that: described horizontal continuous casting crystallizer is circumferentially designing a plurality of independently cooling water cavities (14,15,16,17), each cooling water cavity has water inlet (3) and delivery port (4), respectively independent water inlet and independent water outlet; By cooling water flow, pressure, the cooling water temperature parameter of regulating each cooling water cavity, realize control and cooling uniformity control to the circumferential different parts intensity of cooling of described horizontal continuous casting crystallizer; Described horizontal continuous casting crystallizer specifically comprises water cooling copper sleeve (1), mounting flange (2), box hat (5) and box hat (6), isolated part (13), a plurality of water inlet (3) and delivery port (4); Wherein, the inner chamber of described water cooling copper sleeve (1) is used for installation mold, and described mounting flange (2) is used for described horizontal continuous casting crystallizer is fixed in the horizontal casting system; By described box hat (5) and box hat (6), the common looping cooling water cavity of water cooling copper sleeve (1) and mounting flange (2), described annular cooling water chamber is isolated in a circumferential direction parts (13) and is divided into a plurality of mutually disconnected independently cooling water cavities (14,15,16,17), each cooling water cavity all arranges corresponding a water inlet (3) and delivery port (4), and the quantity of water inlet (3) and delivery port (4) equates with the quantity of cooling water cavity independently.
2. horizontal continuous casting crystallizer according to claim 1, it is characterized in that: described horizontal continuous casting crystallizer also comprises the sealing ring at supported flange (7) and two ends, make box hat (5) and box hat (6) by described supported flange (7) and sealing ring, water cooling copper sleeve (1) and mounting flange (2) fitting tight guarantee that described annular cooling water chamber is water-tight.
3. horizontal continuous casting crystallizer according to claim 1, it is characterized in that: described horizontal continuous casting crystallizer also comprises isolated part (8) and isolated part (9), passage (11) three parts that described independently cooling water cavity is separated into intake antrum (10), water chamber (12) and is communicated with between them by described isolated part (8) and isolated part (9); Cooling water enters described intake antrum (10) by described water inlet (3), enters described water chamber (12) by described passage (11) after being full of, and finally flows out cooling water cavity by described delivery port (4) after being full of.
4. horizontal continuous casting crystallizer according to claim 3, it is characterized in that: described isolated part (8) is cylindrical shape, isolated part (9) is annular, and described isolated part (8) and isolated part (9) link together in a circumferential direction by welding; Described box hat (5) is cylindrical shape, links together in a circumferential direction by welding with described isolated part (9).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102527960A (en) * | 2012-02-15 | 2012-07-04 | 曲沃县民政福利企业有限公司 | Novel crystallizer for horizontal continuous casting |
| CN103341598A (en) * | 2013-07-19 | 2013-10-09 | 烟台孚信达双金属股份有限公司 | Crystallizer for casting of copper-clad aluminum composite materials |
| CN108620545A (en) * | 2017-03-21 | 2018-10-09 | 江油市重鑫特种金属材料有限公司 | A kind of atomization cooling device |
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| CN108980385B (en) * | 2018-09-21 | 2024-01-12 | 山东理工大学 | Flow-adjustable multi-waterway amorphous crystallizer |
| CN110039015A (en) * | 2019-05-15 | 2019-07-23 | 东北大学 | Car body aluminum alloy extrusion section bar ingot casting casting crystallizer and its casting method |
| CN110923804A (en) * | 2019-11-13 | 2020-03-27 | 苏州三原流体科技有限公司 | A lantern ring formula water-cooled tube for monocrystalline silicon growth furnace |
| CN113145818B (en) * | 2021-01-26 | 2023-01-17 | 燕山大学 | Smelting manufacturing production process and device for prolonging service life of crystallizer |
| CN114082911A (en) * | 2021-10-28 | 2022-02-25 | 苏州金仓合金新材料有限公司 | Preparation equipment and preparation method of environment-friendly lead-free phosphorus-added alloy rod |
| CN114042879A (en) * | 2021-11-25 | 2022-02-15 | 北京科技大学 | Horizontal continuous casting crystallizer with enhanced cooling |
| CN114850424B (en) * | 2022-05-30 | 2024-05-03 | 泊头市河铸重工机械有限公司 | Horizontal continuous casting crystallizer with uniform cooling function |
| CN115319043A (en) * | 2022-10-18 | 2022-11-11 | 凯美龙精密铜板带（河南）有限公司 | Horizontal continuous casting slab casting device of CuNiSi alloy |
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| CN102089097A (en) * | 2008-07-10 | 2011-06-08 | Sms西马格股份公司 | Continuous-casting mould |
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| JP3443109B2 (en) * | 2001-05-31 | 2003-09-02 | ジャパン・エンジニアリング・ネットワーク株式会社 | Assembly mold for continuous casting |
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| EP1712313A1 (en) * | 2005-04-13 | 2006-10-18 | Profilarbed S.A. | Continuous metal casting mould |
| CN102089097A (en) * | 2008-07-10 | 2011-06-08 | Sms西马格股份公司 | Continuous-casting mould |
| CN201832966U (en) * | 2010-11-04 | 2011-05-18 | 五矿营口中板有限责任公司 | Die body block of water-cooling crystallizer and die body formed by die body blocks |
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