CN100525961C - Large-scale water-cooling heat energy recovery metal mold system - Google Patents
Large-scale water-cooling heat energy recovery metal mold system Download PDFInfo
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- CN100525961C CN100525961C CNB2007101788021A CN200710178802A CN100525961C CN 100525961 C CN100525961 C CN 100525961C CN B2007101788021 A CNB2007101788021 A CN B2007101788021A CN 200710178802 A CN200710178802 A CN 200710178802A CN 100525961 C CN100525961 C CN 100525961C
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- 238000001816 cooling Methods 0.000 title abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000000498 cooling water Substances 0.000 claims abstract description 45
- 230000000630 rising effect Effects 0.000 claims description 30
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- 230000005674 electromagnetic induction Effects 0.000 claims description 15
- 239000011819 refractory material Substances 0.000 claims description 10
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- 229910000831 Steel Inorganic materials 0.000 abstract description 14
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Abstract
A large water-cooling heat energy recovery metal mold system relates to a water-cooling heat energy recovery technology in casting process technologies of large steel ingots or rollers and the like. The technical scheme adopted by the invention is as follows: the mold comprises a metal mold, an electric heating riser and a metal mold chassis, wherein the electric heating riser and the metal mold chassis are fixedly arranged above the metal mold, a cooling water pipe is arranged inside the metal mold, and a water inlet pipe head and a water outlet pipe head which are respectively communicated with a water inlet and a water outlet of the cooling water pipe are fixedly arranged on the outer surface of the metal mold; and a cooling water pipe is arranged in the metal mold chassis, and a water inlet pipe head and a water outlet pipe head which are respectively communicated with the water inlet and the water outlet of the cooling water pipe are fixedly arranged on the outer surface of the metal mold chassis. The invention has the comprehensive effects of long service life, high casting quality, heat energy recovery and environmental protection, and has wide application prospect.
Description
Technical field
The present invention relates to metallurgical technology field, be specifically related to water-cooled energy recovery technology in large-scale steel ingot or the roll Casting Technology.
Background technology
Existing permanent mold casting technology is divided into two big classes, and a class is traditional metal mold founding iron mold technology for making, and another kind of is that the water-cooled copper crystallizer casts technology continuously.Traditional metal mold founding iron mold technology for making, occur early along with the continuous ripe metal mold steel ingot production of water-cooled copper crystallizer continuous casting technology almost 80% is substituted by continuous casting, because the continuous casting technology is suitable for specification of the same race and produces condition in enormous quantities, and prior art only limits to the square billet of the less or thinner thickness of cross section diameter, rectangular bloom, cylindrical blank etc., for large section such as large-scale metallurgical backing roll, forging is with products such as large-scale steel ingots, tonnage is big, little in batches, the assorted product of specification can only adopt traditional permanent mold casting technology to carry out single-piece production, conventional metals mold casting method adopts the natural heat transfer type cooling in room air of metal mold outer surface more, for the also oriented metal pattern outer surface of the steel ingot spray cooling measure cooling of small dimension size.There is following problems in these two kinds of methods: one, and cooling effect is poor, can't realize the effective cooling control requirement to steel ingot different time, different parts, therefore product quality is not had beneficial effect, so the production assurance of producing is poor; Its two, the steam of heat and heat causes serious environmental pollution, particularly summer to cause environment temperature very high to airborne scatter and disappear; Its three, heat energy can't be realized recycling.
Particularly, for the massive casting roll, the large-sized forging roll, generator amature, permanent mold castings such as engine spindle are indispensable links, the maximum characteristics of such part permanent mold casting are, tonnage is big, setting time is long, the quality requirement height, strict to defective controls such as the loose shrinkage cavities in inside, all adopt metal mould cast method, the heat energy that foundry goods stores is very high, therefore, adopt a kind of compulsory, the method that can artificially control, it is solidified according to from bottom to top sequential system, and its internal heat energy effectively collected and utilized, high thermal pollution is turned waste into wealth, and is the emphasis topic of energy-saving and emission-reduction world today research.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of macrotype metal mold system for recovering thermal energy by cooling water.
For solving the problems of the technologies described above, the technical solution used in the present invention is: it comprises that water-cooled energy recovery metal pattern, low temperature water supply network and hot water energy reclaim pipe network, described water-cooled energy recovery metal pattern comprises metal pattern, is fixedly installed on the electromagnetic induction heating rising head and the metal pattern chassis of metal pattern top, the inside of described metal pattern is provided with cooling water pipe, and the outer surface of metal pattern is set with water inlet tube head and the water outlet tube head that is communicated with the entery and delivery port of described cooling water pipe respectively; The inside on described metal pattern chassis is provided with cooling water pipe, and the outer surface on metal pattern chassis is set with water inlet tube head and the water outlet tube head that is communicated with the entery and delivery port of described cooling water pipe respectively; The cooling water pipe water inlet tube head on wherein said metal pattern and metal pattern chassis is communicated with the low temperature water supply network, and the cooling water pipe water outlet tube head on described metal pattern and metal pattern chassis reclaims pipe network with the hot water energy and is communicated with.
The inner surface on described metal pattern and metal pattern chassis is equipped with the metallic core coating that thickness is 0.2～1.5mm.
As improvement of the present invention, the cooling water pipe of described metal pattern and inside, metal pattern chassis is the helical form cooling water pipe.
As a further improvement on the present invention, described electromagnetic induction heating rising head is cylindric flange arrangement, build by laying bricks or stones for refractory material its inboard, and near the refractory material arranged outside cross section being arranged is that " magnetic conductor of [" shape, the helix induction coil is embedded in " in the magnetic conductor of [" shape.
The pipeline of described low temperature water supply network is provided with flow control valve and pressure valve.
The pipeline that described hot water energy reclaims pipe network has heat-insulation material and its pipeline to be provided with temperature measurement control instrument and pressure valve outward.Automatically regulate flow control valve by the signal that the temperature measurement control instrument obtains, play the effect of control intensity of cooling, control pipe network output water temperature degree.
Reasonable in design of the present invention, operation is reliable, has overcome short, poor to the casting quality control ability, thermal waste of existing various metal die life-spans and has reached the thermal pollution problem that environment is caused.The present invention, can be applicable to metallurgical casting backing roll Foundry Production, forge backing roll with steel ingot, forge generator amature with a kind of with in square, rectangle, polygon, cylinder, the various foundry goods of truncated cone-shaped of steel ingot, large ship bent axle forging-grade ingot and rolling special steel.
The present invention has the resultant effect of long service life, casting quality height, energy-saving and environmental protection, has a extensive future.
Description of drawings
Fig. 1 is the structural representation of foundry goods water-cooled energy recovery metal pattern of the present invention;
Fig. 2 is the structural representation of magnetic induction rising head 1 of the present invention;
Fig. 3 is the structural representation of heat reclaiming system of the present invention.
The specific embodiment
Specify the specific embodiment below in conjunction with Figure of description.
As shown in Figure 1, present embodiment comprises that water-cooled energy recovery metal pattern, low temperature water supply network 7 and hot water energy reclaim pipe network 8, described water-cooled energy recovery metal pattern comprises metal pattern 2, is fixedly installed on the electromagnetic induction heating rising head 1 and the metal pattern chassis 3 of metal pattern top, the inside of described metal pattern 2 is provided with cooling water pipe 21, and the outer surface of metal pattern 2 is set with water inlet tube head 211 and the water outlet tube head 212 that is communicated with the entery and delivery port of described cooling water pipe 21 respectively; The inside on described metal pattern chassis 3 is provided with cooling water pipe 22, and the outer surface on metal pattern chassis 3 is set with water inlet tube head 221 and the water outlet tube head 222 that is communicated with the entery and delivery port of described cooling water pipe 22 respectively; The cooling water pipe water inlet tube head on wherein said metal pattern 2 and metal pattern chassis 3 is communicated with low temperature water supply network 7, and the cooling water pipe water outlet tube head on described metal pattern 2 and metal pattern chassis 3 reclaims pipe network 8 with the hot water energy and is communicated with.Locate by seam respectively between described metal pattern 2 and electromagnetic induction heating rising head 1 and the metal pattern chassis 3.The inner surface on described metal pattern 2 and metal pattern chassis 3 is equipped with the metallic core coating that thickness is 0.2～1.5mm.
Described electromagnetic induction heating rising head 1 is cylindric flange arrangement, and build by laying bricks or stones for refractory material its inboard, and near the refractory material arranged outside cross section being arranged is that " magnetic conductor 11 of [" shape, helix induction coil 12 are embedded in " in the magnetic conductor 11 of [" shape.
The outer surface of described metal pattern 2 is installed with thermal insulation layer 4; Such as, can adopt tabular asbestos refractory material.
Preferably, the cooling water pipe of described metal pattern 2 and 3 inside, metal pattern chassis is the helical form cooling water pipe.
Wherein, the pipeline of described low temperature water supply network 7 is provided with flow control valve and pressure valve; The pipeline that described hot water energy reclaims pipe network 8 has heat-insulation material and its pipeline to be provided with temperature measurement control instrument and pressure valve outward.
The described large-size water-cooling energy recovery of present embodiment metal pattern, the last lower flange of electromagnetic induction heating rising head 1 adopts insulation to be connected closing with the magnetic conductor at middle part, induction coil is inlayed with magnetic conductor and is connected, and adopts to build by laying bricks or stones between internal insulation refractory material and induction coil to be connected.Wherein, the helical form cooling water pipe on metal pattern 2 and metal pattern chassis 3 is connected with metal pattern 2, metal pattern chassis 3, be under cooling water pipe ventilation or air water mixing fog cooling condition, the liquid metal mold materials is poured into to cast in the sand mold mould that places the helical form cooling water pipe forms, so its connected mode is called and irritates casting and connect.The water-in and water-out tube head is connected the employing screw thread closing connection with metal pattern, metal pattern chassis.
Electromagnetic induction heating rising head 1 and metal pattern 2, all adopt the seam location between metal pattern 2 and the metal pattern chassis 3, closing connection, its metal pattern 2 is connected with the contact of metal pattern outer surface thermal insulation board 4 packaging types, metal pattern 2 and metal pattern chassis 3 adopt thermal spraying mode coating type to be connected with its coating on inner surface 5, the water inlet pipe on metal pattern 2 and metal pattern chassis 3 and the low temperature water supply network 7 that is used to cool off, the outlet pipe on metal pattern 2 and metal pattern chassis 3 reclaims pipe network 8 with the heated hot water energy and all adopts high pressure flexible water hose to be connected valve, and pressure is installed on pipe network, flow, seam was connected when the suspension ring 6 that thermometric instrument, handling are used adopted molten condition with foundry goods.
The preparation of above-mentioned heat reclaiming system and concrete operations, carry out as follows:
(1) preparation of mould: the refractory material of electromagnetic induction heating rising head 1 according to the shape that rising head requires build by laying bricks or stones, drying; The cleaning on metal pattern 2 and metal pattern chassis 3, preheating; Ingot mould outer surface thermal insulation board 4 is prepared; Ingot mould and 5 preparations of chassis inner surface coating; Ingot mould, ingot mould chassis inner surface spray-on coating after the preheating cleaning; The suspension ring 6 that handling is used are prepared, and the suspension ring 6 that described handling is used are made up of the rod iron of two " V " shapes, and two wooden fork pin of " V " type are " Y " shape structure; The low temperature water supply network 7 that is used to cool off, heated hot water energy reclaim the preparation that pipe network 8 connects flexible pipe.
(2) assembling of large-size water-cooling energy recovery ingot mould:
1. at first metal pattern chassis 3 is placed in the work-yard, the water detection plain cushion is real;
2. metal pattern 2 is placed on the metal pattern chassis 3, the seam mode is docked between the two;
3. lay electromagnetic induction heating rising head 1 on metal pattern 2, the seam mode is docked and is closed with the bolt handle between the two;
4. the power supply line that connects electromagnetic induction heating rising head 1; Connect the water pipe on metal pattern 2 and metal pattern chassis 3, water inlet pipe is connected with low temperature water supply network 7, the outlet pipe energy reclaims pipe network 8 and connects.
5. thermal insulation board 4 is wrapped in metal pattern 2 outer surfaces, and is fastened with steel wire.
(3), the casting of large-scale steel ingot:
1. the parameter according to manufacturing technique requirent makes molten steel be begun by ingot mould lower chassis upper surface, is poured into from bottom to top apart from about the 100mm of rising head upper surface, stops casting;
2. open the valve that outlet pipe connects heat distribution pipeline, after slowly open the cooling water inlet pipe valve, cooling water is progressed in the ingot mould, adjust water inlet pipe pressure and flow-control outlet pipe water temperature and remain between 80～90 ℃.
(4) start eddy-current heating rising head power supply, make the molten steel at rising head position be heated to 50～80 ℃ of temperature of the degree of superheat, the surface coverage insulation material according to the rising head variations in temperature, is forfeited electricity and is kept the feeding passage of rising head unimpeded.
(5) lay hoisting ring, solidify the setting time of numerical simulation calculation ingot casting by CAE, treat that solidification zone enters ingot on one's body during the end face 100mm left and right sides, stop induction and send electrical heating, hoisting ring is hanging to the rising head top is reverse V-shaped, reverse V-shaped lower end is immersed in the high-temperature molten steel, makes its surface portion fusing and is set in the lump with riser metal liquid.
(6) stop pouring practice: after treating that the ingot casting bulk temperature reaches molding temperature (about 80～120 ℃), close the valve of low temperature water supply network 7 and the valve that the hot water energy reclaims pipe network 8, unload pipe network and connect flexible pipe, lay down eddy-current heating rising head power supply;
(7) stripping operation: lay down eddy-current heating rising head and ingot mould upper surface fastening bolt, lay down the eddy-current heating rising head, lifting rising head hoisting ring is transported to ingot casting next procedure, hangs out ingot mould and ingot mould chassis to storage space.
Large-size water-cooling energy recovery metal pattern, described water cooled mo(u)ld, water cooled mo(u)ld floor all are provided with flow control valve with water inlet being connected of pipe network, the connection of water cooled mo(u)ld, water cooled mo(u)ld chassis water outlet pipe network all is provided with the temperature information collection, the processing controls of temperature signal and flow signal is played the foundry goods intensity of cooling is regulated and to the control action of heat outputting coolant-temperature gage.
Operation principle of the present invention, the course of work, outstanding feature and superiority are: all things considered, the present invention is deficiency, defective and the drawback that exists in view of prior art, cast, forge the research and development experience based on professional theory knowledge and large-scale roller that the inventor enriches, according to Ferrous Metallurgy principle, electromagnetic induction principle and solidification theory basis, the design of large-size water-cooling energy recovery metal pattern has been proposed.Wherein, the center porosity, the shrinkage cavity problem that are prone to most at large-scale steel-casting, and employing water-cooled metal mould, water-cooled metal mold chassis have been proposed, water at low temperature is entered by the below, high-temperature water has the top to flow out, thereby play the effect of pressure cooling from bottom to top, the consecutive solidification that has guaranteed molten metal makes inner loose, the shrinkage cavity of ingot casting shift to rising head by the ingot body, makes to eliminate that foundry goods is loose, shrinkage cavity is achieved; At the energy recovery problem, owing to adopted the water-cooled cooling cooling, when guaranteeing to the foundry goods cooling, with heat transferred water, the water that to lay in a large amount of high temperature heat again flows to the heat energy utilization system by heat distribution pipeline, as thermal power generator etc., the recovery of energy is achieved; At traditional ingot casting natural heat transfer problem in air, in order to eliminate the pollution of heat energy to environment, reclaim simultaneously heat energy to greatest extent, this patent has adopted the way at metal pattern surface parcel insulating refractory, both played the elimination environmental pollution, and played the beneficial effect that reduces thermal waste again and be achieved; At metal pattern low problem in service life, having analyzed low reason of metal pattern life-span after deliberation is because metal pattern contact side thickness of die direction behind high-temperature liquid metal exists high thermograde, because the inner surface heat that gradient causes rises to be obstructed and causes inwall generation permanent plastic deformation, when cool to room temperature, shrink and to be restored again, and then make inwall occur be full of cracks (both hot tearings) too early, because this patent has adopted interior water-cooled mould, cooling water pipe is arranged in tool mould inner surface 1/4 position, effectively played the effect of outside gradient in reducing, and then the raising of mold mission is achieved; Poor at the large-sized casting ingot riser head heat-preserving, in just " V " type of being formed centrally nest that contracts dark, rising head crop amount is big, shortcomings such as effective metal liquid utilization rate is low, the present invention has adopted molten metal internal heat type electromagnetic induction heating rising head, compares no arc light with the heating of electric arc external-heat and exposes, metal bath surface insulation material covers, electrical efficiency height, heat loss are little, have played and have eliminated shrinkage cavity fully, improve the beneficial effect of rising head position effective rate of utilization.
At the different characteristics of large-sized casting ingot temperature-fall period to the cooling capacity requirement, adopted the outlet temperature monitoring, carried out the self-regulating control system of water supply flow according to temperature, guarantee the right requirement of casting quality cooling, guaranteed the beneficial effect that heat energy effectively utilizes simultaneously.At the unpacking handling problem of large-sized casting ingot, this patent has adopted the ingot solidification later stage to install " V " type suspension ring method at rising head, has substituted the method for the artificial casting technique lifting of ingot casting handle, and is simple to operate, played the beneficial effect of having simplified process links.
Claims (9)
1, macrotype metal mold system for recovering thermal energy by cooling water, it is characterized in that it comprises that water-cooled energy recovery metal pattern, low temperature water supply network (7) and hot water energy reclaim pipe network (8), described water-cooled energy recovery metal pattern comprises metal pattern (2), is fixedly installed on electromagnetic induction heating rising head (1) and metal pattern chassis (3) of metal pattern top, the inside of described metal pattern (2) is provided with cooling water pipe (21), and the outer surface of metal pattern (2) is set with water inlet tube head (211) and the water outlet tube head (212) that is communicated with the entery and delivery port of described cooling water pipe (21) respectively; The inside on described metal pattern chassis (3) is provided with cooling water pipe (22), and the outer surface of metal pattern chassis (3) is set with water inlet tube head (221) and the water outlet tube head (222) that is communicated with the entery and delivery port of described cooling water pipe (22) respectively; The cooling water pipe water inlet tube head of wherein said metal pattern (2) and metal pattern chassis (3) is communicated with low temperature water supply network (7), and the cooling water pipe water outlet tube head of described metal pattern (2) and metal pattern chassis (3) reclaims pipe network (8) with the hot water energy and is communicated with.
2, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 is characterized in that locating by seam respectively between described metal pattern (2) and electromagnetic induction heating rising head (1) and metal pattern chassis (3).
3, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 is characterized in that the inner surface of described metal pattern (2) and metal pattern chassis (3) is equipped with the metallic core coating that thickness is 0.2～1.5mm.
4, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 is characterized in that the inner cooling water pipe in described metal pattern (2) and metal pattern chassis (3) is the helical form cooling water pipe.
5, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 and 2, it is characterized in that described electromagnetic induction heating rising head (1) is cylindric flange arrangement, build by laying bricks or stones for refractory material its inboard, near the refractory material arranged outside cross section being arranged is that " magnetic conductor of [" shape (11), helix induction coil (12) is embedded in " in the magnetic conductor of [" shape (11).
6, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 and 2 is characterized in that the outer surface of described metal pattern (2) is installed with thermal insulation layer (4).
7, macrotype metal mold system for recovering thermal energy by cooling water according to claim 6 is characterized in that described thermal insulation layer (4) adopts tabular asbestos refractory material.
8, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 is characterized in that the pipeline of described low temperature water supply network (7) is provided with flow control valve and pressure valve.
9, macrotype metal mold system for recovering thermal energy by cooling water according to claim 1 is characterized in that the pipeline of described hot water energy recovery pipe network (8) has heat-insulation material and its pipeline to be provided with temperature measurement control instrument and pressure valve outward.
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| CNB2007101788021A CN100525961C (en) | 2007-12-05 | 2007-12-05 | Large-scale water-cooling heat energy recovery metal mold system |
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| CN100525961C true CN100525961C (en) | 2009-08-12 |
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| CN101791682B (en) * | 2010-04-08 | 2011-09-28 | 中冶京诚工程技术有限公司 | Manufacturing device for rectangular ingot blank of ultra-large extra-thick plate |
| CN102019412A (en) * | 2010-12-04 | 2011-04-20 | 张立强 | Casting afterheat recovery method and special equipment thereof |
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| CN202824559U (en) * | 2012-08-04 | 2013-03-27 | 孙柏良 | Electromagnetic stirring water cooled steel ingot casting mold |
| CN103212675B (en) * | 2013-05-03 | 2015-03-18 | 燕山大学 | Steel ingot feeder head induction heating and electromagnetic stirring device |
| CN104070133A (en) * | 2014-07-14 | 2014-10-01 | 湖南三泰新材料股份有限公司 | Cast die |
| CN105108076A (en) * | 2015-09-08 | 2015-12-02 | 泰州市恒达金属铸件厂 | High strength alloy steel ingot production die |
| CN105349952A (en) * | 2015-11-09 | 2016-02-24 | 基迈克材料科技（苏州）有限公司 | Manufacturing method for casting metal lithium target |
| CN106424567B (en) * | 2016-11-10 | 2018-05-04 | 内蒙古科技大学 | Superhard aluminum casting composite electromagnetic pulse solidified structure processing unit and method |
| CN109382488A (en) * | 2018-11-28 | 2019-02-26 | 爱发科电子材料（苏州）有限公司 | The device of copper silmin vacuum-casting control shrinkage cavity position |
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| US4382585A (en) * | 1979-02-26 | 1983-05-10 | Kabel-u. Metallwerke Gutehoffnungshutte AG | Cooling plate for furnaces |
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| CN101176913A (en) | 2008-05-14 |
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