CN102274955A - Nitrogen protective oxygen-insulated whole-course quick cooling casting process and system for anode plates - Google Patents
Nitrogen protective oxygen-insulated whole-course quick cooling casting process and system for anode plates Download PDFInfo
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- CN102274955A CN102274955A CN2011102089317A CN201110208931A CN102274955A CN 102274955 A CN102274955 A CN 102274955A CN 2011102089317 A CN2011102089317 A CN 2011102089317A CN 201110208931 A CN201110208931 A CN 201110208931A CN 102274955 A CN102274955 A CN 102274955A
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Abstract
The invention discloses a nitrogen protective oxygen-insulated whole-course quick cooling casting process for an anode plate, wherein molten metal liquid is cooled by a cooling mould ingot immediately while being cast into the cooling mould ingot by a ladle pot. The process specifically comprises the following steps of: cooling the anode plate from the bottom and four sides thereof by means of the water cooling mould ingot so that heat carried by the anode plate is taken away by cooling water in the cooling mould ingot and the anode plate is prompted to be quickly solidified and formed; and in the process of quick cooling and solidifying formation, continuously spraying waste nitrogen from the oxygen production process of a factory or liquid nitrogen to the surface of the anode plate, thus forming an oxygen-insulated protection layer on the surface of the anode plate while cooling the surface and thereby preventing the surface of the anode plate from being oxidized and ensuring the physical specification of the anode plate. The invention also discloses a system used for the process. The process of the invention emphasizes the cooling course and shortens the cooling time; and under the condition of oxygen insulation, quick cooling is realized from inside outwards during the whole course so as to ensure the quality of the anode plate and reduce the consumption of refractory materials as well as to reduce the odds of oxidization and burr and flashing formation of the anode plate.
Description
Technical field
The present invention relates to the technical field of motlten metal casting cooling forming, exactly relate to a kind of copper, nickel, lead, zinc, aluminium are cast into positive plate by molten condition positive plate nitrogen protection oxygen barrier omnidistance cooling casting process and system fast.
Background technology
At non-ferrous metal industry, pyrometallurgy can't obtain pure metal, and the crude metal that pyrometallurgy must be obtained needs in the process crude metal physical specification as requested of molten state is cast into positive plate through the electrolysis removal of impurities.
What existing processes adopted is that multigraph press is realized direct casting, technological process is: metal liquid flows to tundish by anode refining furnace, be interrupted again and flow to casting ladle with Weight control function, casting ladle is set according to the weight of positive plate, metal liquid is poured in the anode template die ingot that is installed on the disc casting machine, the mould ingot that metal liquid is housed is shifted out in the operation of disc casting machine, and empty mould ingot moves into the metal liquid that reinjects; Metal liquid in the mould ingot is exposed in the air cooling naturally, up to just adopting shower water by force behind the cooling forming behind the surface cure crust of metal liquid, by extractor positive plate is mentioned the cooling bath cooling, so goes round and begins again and finishes continuous production.In this process, bonding for preventing metal liquid and mould ingot, the mould ingot needs to smear protection with refractory material (for example barium sulfate) before accepting molten metal; The overlong time that molten metal cools off in air naturally (for example copper liquid needs 3～5 minutes), and the start and stop meeting of disc casting machine produces circumferential and swings longitudinally, causes rocking of molten metal, forms burr, the big ear of fat edges etc.; Simultaneously, airborne oxygen and metal reaction generate oxide; Shower water cools off by force on the surface and causes inhomogeneous cooling even, can cause bottom or middle upwards eruption of liquid, forms crateriform projection on the positive plate surface; Above situation all can produce considerable influence to follow-up electrolysis production.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art; provide a kind of positive plate nitrogen protection oxygen barrier omnidistance cooling casting process and system fast; it strengthens cooling procedure; shorten cool time; whole process cooling fast from inside to outside under the condition of oxygen barrier; guarantee the quality of positive plate and the consumption of minimizing refractory material, reduce the probability that positive plate is oxidized and burr generates.It is to utilize the discarded nitrogen of factory to form protective layer on the surface of positive plate, stops the reaction of red-hot metal and oxygen, cools off on its surface simultaneously; Adopt the water cooled mo(u)ld ingot from the bottom of positive plate with cool off all around, impel the moulding of positive plate rapid solidification.
For achieving the above object, the present invention adopts following technical proposals:
The omnidistance cooling fast of a kind of positive plate nitrogen protection oxygen barrier casting process, it adopts the fusion high-temperature liquid metal is evenly flow in the dead slot of water cooled mo(u)ld ingot after by casting ladle control weight, when casting ladle molten metal according to required weight is injected in the dead slot of water cooled mo(u)ld ingot, the shape that molten metal is pressed dead slot forms the liquid anodes plate; After first casting finished, casting ladle lifts accepted molten metal again, and the rotation of disc casting machine is shifted out first, and second immigration pours into molten metal again;
Rotatable water interface is set at the center of disc casting machine, by rotatable water interface and pipeline being fed in the water cooled mo(u)ld ingot with the continuous cooling water of low temperature, the cooling water that temperature raises after the heat exchange is discharged continuously by the water outlet of water cooled mo(u)ld ingot, circulation after cooling is handled, the cooling water of continuous-flow just drops to low-temperature condition with the water cooled mo(u)ld ingot before the water cooled mo(u)ld ingot is accepted motlten metal;
Accept and fill with motlten metal in becoming the process that positive plate withdrawn at the mould ingot, omnidistance to its bottom and around cooling by force;
Adopt discarded nitrogen in the plant produced oxygen technology to be sprayed onto the surface of positive plate continuously simultaneously, the surface-cooled while of antianode plate forms the oxygen barrier protective layer on its surface, makes motlten metal rapid solidification moulding under the state of oxygen barrier; Heated nitrogen is collected by gas skirt, is discharged in the outer atmosphere of operation field by exhaust equipment;
Behind the positive plate coagulation forming, sprayed cooling water and made its fast cooling by the spraying cooling water pole plate that faces south again, the steam of generation is collected by gas skirt equally; The product positive plate is then taken away from the mould ingot by transporting equipment, finishes and works continuously.
The omnidistance cooling fast of a kind of positive plate nitrogen protection oxygen barrier casting system, comprise the disc casting machine, be evenly equipped with some water cooled mo(u)ld ingots on the described disc casting machine circumference, described some water cooled mo(u)ld ingots are all by pipeline and the rotating water interface UNICOM that is arranged at disc casting machine center, the disc casting machine outside is provided with the arc gas skirt, is provided with some gas outlets that link to each other with source nitrogen and some delivery ports that links to each other with the water source between gas skirt and the water cooled mo(u)ld ingot; Described gas outlet is all corresponding with the water cooled mo(u)ld ingot with delivery port.
Described water cooled mo(u)ld ingot comprises the ingot body, and ingot body center is a dead slot, is provided with water channel in the ingot body wall, and water channel is by pipeline and the rotating water interface UNICOM that is arranged at disc casting machine center.
The water cooled mo(u)ld ingot is to be made by the good metal of heat conductivility (for example metallic copper and alloy thereof), and there is the passage that continuous cooling water is flowed in portion within it.
Discarded nitrogen is the normal temperature gaseous nitrogen that produces in the plant produced oxygen process or the liquid nitrogen of low temperature.
Cooling water in the water cooled mo(u)ld ingot is to be provided continuously by the rotatable water interface that is arranged on disc casting machine center.
The present invention adopts the water cooled mo(u)ld ingot to replace traditional steel or copper mould ingot, good cooling results.
The invention has the beneficial effects as follows, the one, the time of positive plate coagulation forming is short, physical specification qualification rate height; The 2nd, the oxidized probability of positive plate is little, and chemical quality is guaranteed; The 3rd, the mould ingot is cooled, and temperature is low, easily separates with positive plate, and the refractory material consumption is little.The 4th, mould ingot whole process is cooled, and is difficult for by the high-temperature liquid metal corrode.
Description of drawings
Fig. 1 is the described schematic flow sheet of technology of the present invention;
Fig. 2 is the structural representation of water cooled mo(u)ld ingot among the present invention;
Wherein: 1 fusion high-temperature liquid metal, 2 casting ladles, 3 water cooled mo(u)ld ingots, 4 nitrogen, 5 positive plates, 6 cooling waters, 7 rotating water interfaces, 8 spraying cooling water, 9 gas skirts, 10. water channel.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1, Fig. 2, the omnidistance cooling fast of positive plate nitrogen protection oxygen barrier casting process, fusion high-temperature liquid metal 1 evenly flows in the dead slot of water cooled mo(u)ld ingot 3 after controlling weight by casting ladle 2, when casting ladle 2 molten metal according to required weight is injected in the dead slot of water cooled mo(u)ld ingot 3, the shape that molten metal is pressed dead slot forms the liquid anodes plate; After first casting finished, casting ladle 2 lifts accepted molten metal again, and the rotation of disc casting machine is shifted out first, and second immigration pours into molten metal again; Cooling water 6 by being arranged on disc casting machine center rotatable interface 7 and pipeline with being fed in each water cooled mo(u)ld ingot 3 of the continuous cooling water of low temperature, cool off to the mould ingot and by mould ingot antianode plate, impel its rapid solidification moulding; The cooling water that temperature raises after the heat exchange is discharged continuously by the water outlet of mould ingot, recycles after cooling is handled; Adopt discarded nitrogen 4 in the plant produced oxygen technology to be sprayed onto the surface of positive plate 5 continuously simultaneously, the surface-cooled while of antianode plate forms the oxygen barrier protective layer on its surface, heated nitrogen is collected by gas skirt 9, is discharged in the outer atmosphere of operation field by exhaust equipment (air-introduced machine or chimney); Behind the positive plate coagulation forming, make its fast cooling by spraying cooling water 8 pole plate sprinkling on the sunny side cooling water again, the steam of generation is collected by gas skirt 9 equally; The product positive plate is then taken away from the mould ingot by transporting equipment, finishes and works continuously.
The omnidistance cooling fast of positive plate nitrogen protection oxygen barrier casting system, comprise the disc casting machine, be evenly equipped with some water cooled mo(u)ld ingots 3 on the described disc casting machine circumference, described some water cooled mo(u)ld ingots 3 are all by pipeline and rotating water interface 7 UNICOMs that are arranged at disc casting machine center, the disc casting machine outside is provided with arc gas skirt 9, is provided with some gas outlets that link to each other with source nitrogen and some delivery ports that links to each other with the water source between gas skirt 9 and the water cooled mo(u)ld ingot 3; Described gas outlet is all corresponding with water cooled mo(u)ld ingot 3 with delivery port.
Described water cooled mo(u)ld ingot 3 comprises the ingot body, and ingot body center is a dead slot, is provided with water channel 10 in the ingot body wall, and water channel 10 is by pipeline and rotating water interface 7 UNICOMs that are arranged at disc casting machine center.
Water cooled mo(u)ld ingot 3 is to be made by the good metal of heat conductivility (for example metallic copper and alloy thereof), and there is the passage that continuous cooling water is flowed in portion within it.
Discarded nitrogen is the normal temperature gaseous nitrogen that produces in the plant produced oxygen process or the liquid nitrogen of low temperature.
Cooling water in the water cooled mo(u)ld ingot is to be provided continuously by the rotatable water interface 7 that is arranged on disc casting machine center.
Technical solutions according to the invention are not restricted in the scope of embodiment of the present invention.The present invention not technology contents of detailed description is known technology.
Claims (3)
1. a positive plate nitrogen protection oxygen barrier whole process is cooled off casting process fast, it is characterized in that, it adopts the fusion high-temperature liquid metal is evenly flow in the dead slot of water cooled mo(u)ld ingot after by casting ladle control weight, when casting ladle molten metal according to required weight is injected in the dead slot of water cooled mo(u)ld ingot, the shape that molten metal is pressed dead slot forms the liquid anodes plate; After first casting finished, casting ladle lifts accepted molten metal again, and the rotation of disc casting machine is shifted out first, and second immigration pours into molten metal again;
Rotatable water interface is set at the center of disc casting machine, by rotatable water interface and pipeline being fed in the water cooled mo(u)ld ingot with the continuous cooling water of low temperature, the cooling water that temperature raises after the heat exchange is discharged continuously by the water outlet of water cooled mo(u)ld ingot, circulation after cooling is handled, the cooling water of continuous-flow just drops to low-temperature condition with the water cooled mo(u)ld ingot before the water cooled mo(u)ld ingot is accepted motlten metal;
Accept and fill with motlten metal in becoming the process that positive plate withdrawn at the mould ingot, omnidistance to its bottom and around cooling by force;
Adopt discarded nitrogen in the plant produced oxygen technology to be sprayed onto the surface of positive plate continuously simultaneously, the surface-cooled while of antianode plate forms the oxygen barrier protective layer on its surface, makes motlten metal rapid solidification moulding under the state of oxygen barrier; Heated nitrogen is collected by gas skirt, is discharged in the outer atmosphere of operation field by exhaust equipment;
Behind the positive plate coagulation forming, sprayed cooling water and made its fast cooling by the spraying cooling water pole plate that faces south again, the steam of generation is collected by gas skirt equally; The product positive plate is then taken away from the mould ingot by transporting equipment, finishes and works continuously.
2. a positive plate nitrogen protection oxygen barrier whole process is cooled off casting system fast, comprise the disc casting machine, it is characterized in that, be evenly equipped with some water cooled mo(u)ld ingots on the described disc casting machine circumference, described some water cooled mo(u)ld ingots are all by pipeline and the rotating water interface UNICOM that is arranged at disc casting machine center, the disc casting machine outside is provided with the arc gas skirt, is provided with some gas outlets that link to each other with source nitrogen and some delivery ports that links to each other with the water source between gas skirt and the water cooled mo(u)ld ingot; Described gas outlet is all corresponding with the water cooled mo(u)ld ingot with delivery port.
3. the omnidistance cooling fast of positive plate nitrogen protection oxygen barrier as claimed in claim 2 casting system; it is characterized in that described water cooled mo(u)ld ingot comprises the ingot body, ingot body center is a dead slot; be provided with water channel in the ingot body wall, water channel is by pipeline and the rotating water interface UNICOM that is arranged at disc casting machine center.
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| CN2011102089317A CN102274955A (en) | 2011-07-25 | 2011-07-25 | Nitrogen protective oxygen-insulated whole-course quick cooling casting process and system for anode plates |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392484A (en) * | 2016-11-11 | 2017-02-15 | 成都三壹八科技有限公司 | Manufacturing method of automobile sheet metal parts |
| CN108031804A (en) * | 2018-01-23 | 2018-05-15 | 广西欧迪姆重工科技有限公司 | A kind of current divider and its equipment for turning round continuous production alloy |
| CN108044066A (en) * | 2018-01-23 | 2018-05-18 | 广西欧迪姆重工科技有限公司 | A kind of liquid metal casting revolving platform device and equipment |
| CN108057861A (en) * | 2018-01-23 | 2018-05-22 | 广西欧迪姆重工科技有限公司 | The mixing wastewater with air cooling system and equipment of a kind of continuous rod casting machine |
| CN108057858A (en) * | 2018-01-23 | 2018-05-22 | 广西欧迪姆重工科技有限公司 | A kind of casting system for turning round continuous production alloy |
| CN108067592A (en) * | 2018-01-23 | 2018-05-25 | 广西欧迪姆重工科技有限公司 | A kind of integration casting apparatus and casting workshop clean preparation method |
| CN108080587A (en) * | 2018-01-23 | 2018-05-29 | 广西欧迪姆重工科技有限公司 | A kind of control device and its equipment for turning round continuous production alloy |
| CN110411883A (en) * | 2018-04-28 | 2019-11-05 | 上海交通大学 | A kind of thermal fatigue test apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392484A (en) * | 2016-11-11 | 2017-02-15 | 成都三壹八科技有限公司 | Manufacturing method of automobile sheet metal parts |
| CN108031804A (en) * | 2018-01-23 | 2018-05-15 | 广西欧迪姆重工科技有限公司 | A kind of current divider and its equipment for turning round continuous production alloy |
| CN108044066A (en) * | 2018-01-23 | 2018-05-18 | 广西欧迪姆重工科技有限公司 | A kind of liquid metal casting revolving platform device and equipment |
| CN108057861A (en) * | 2018-01-23 | 2018-05-22 | 广西欧迪姆重工科技有限公司 | The mixing wastewater with air cooling system and equipment of a kind of continuous rod casting machine |
| CN108057858A (en) * | 2018-01-23 | 2018-05-22 | 广西欧迪姆重工科技有限公司 | A kind of casting system for turning round continuous production alloy |
| CN108067592A (en) * | 2018-01-23 | 2018-05-25 | 广西欧迪姆重工科技有限公司 | A kind of integration casting apparatus and casting workshop clean preparation method |
| CN108080587A (en) * | 2018-01-23 | 2018-05-29 | 广西欧迪姆重工科技有限公司 | A kind of control device and its equipment for turning round continuous production alloy |
| CN110411883A (en) * | 2018-04-28 | 2019-11-05 | 上海交通大学 | A kind of thermal fatigue test apparatus |
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Application publication date: 20111214 |