CN201979056U - Horizontal continuous bright ingot casting device - Google Patents
Horizontal continuous bright ingot casting device Download PDFInfo
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- CN201979056U CN201979056U CN2011200952815U CN201120095281U CN201979056U CN 201979056 U CN201979056 U CN 201979056U CN 2011200952815 U CN2011200952815 U CN 2011200952815U CN 201120095281 U CN201120095281 U CN 201120095281U CN 201979056 U CN201979056 U CN 201979056U
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Abstract
The utility model discloses a horizontal continuous bright ingot casting device, comprising a crystallizer, wherein the crystallizer comprises a graphite liner, a crystallizer tube body and a crystallizer sheath. A water chamber is formed between the crystallizer tube body and the crystallizer sheath, and a cooling water inlet and a cooling water outlet are formed on the crystallizer sheath. The horizontal continuous bright ingot casting device is characterized in that a nitrogen cooling device is arranged at the outlet of the crystallizer; a secondary water cooling device is arranged at the outlet of the nitrogen cooling device; and an ingot traction device is further arranged in the ingot direction. By adopting a sectional type ingot casting device, the cooling intensity of each section is consistent with the solidification property of an alloy, so that the high-low temperature brittle zone during the solidification of the alloy is avoided, and a high-quality dense ingot is easy to obtain. An oxygen content detecting probe and a blowing fan are arranged outside the nitrogen cooling device to prevent the nitrogen enrichment in a local area and the harm to the personnel safety of operating personnel.
Description
Technical field
The utility model relates to ingot casting device, especially relates to a kind of horizontal continuous-casting light ingot casting process units.
Background technology
Adopt horizontal continuous casting technology production of copper and copper alloy casting ingot, obtained significant progress in recent years.Advantage is: the one, and production efficiency significantly improves, and adopts the production efficiency of horizontal continuous casting technology to adopt vertical D.C.casting technology to improve nearly 100%.The 2nd, the lumber recovery of production significantly improves, and only casts a process procedure and can improve operation lumber recovery about 12%.The 3rd, operative employee's labour intensity reduces, and the degree-of-difficulty factor of operating process reduces, and is easy to control.The 4th, energy consumption and production cost significantly reduce.The 5th, some copper alloy product has been realized the abbreviated system of newly net forming substantially by adopting continuously casting and continuously rolling technology.
The smelting temperature of copper alloy is generally between 1000-1250 ℃.At high temperature, the surface of this class alloy can not form compact protective film, and very easily oxidation forms thicker oxide skin, and ingot casting quality and following process are impacted.At present; the outer surface of ingot casting in the casting process is not taked any safeguard measure substantially both at home and abroad; particularly diameter is at Φ 150mm and above ingot casting (or plate ingot of suitable section), and often there is very serious oxidative phenomena in the surface, and following process is produced harmful effect.Oxide skin increases the wearing and tearing of recipient, pressure ram, pecker, and the life-span of extrusion die is reduced greatly.Oxide skin is pressed into and causes product defect in the fabricated product, causes goods to be scrapped when serious.Metallic copper oxidation meeting causes metal loss, increases production cost.
In the process that the horizontal connecting technique of employing is cast; can not effectively protect the ingot casting surface; main cause is as follows: the existing crystallizer of the first is the die cavity of an ingot casting moulding; crystallizer only can be taken away the heat about the 20-40% of high-temperature copper liquid, the copper ingot that solidifies can't be cooled to below the oxidizing temperature.It two is after the ingot solidification, because linear shrinkage and form air gap between crystallizer and ingot casting makes between ingot casting surface and the crystallizer and can't carry out conduction heat transfer.At this moment, the high-temperature region temperature of ingot casting heart portion is near the fusing point of copper and copper alloy, and making by conduction heat transfer, the temperature on the ingot casting surface of coagulation forming raises fast.The ingot casting ambient air is the ingot casting of oxidation high temperature rapidly.It three is, ingot casting is before the cooling of secondary water breakthrough, and surface temperature is very high, and secondary cooling water is the ingot casting of oxidation high temperature further.Secondary cooling water is dissolved with a large amount of oxygen through cooling tower spray atomizing cooling in the water.Under the situation of water body spray and strong circulation, the dissolved oxygen in water amount reaches 12g/m
3A diameter is Φ 200-440mm, and length is copper and the copper alloy casting ingot of 5.5-6.5m, and the casting time is approximately 1-2h, and in the casting process of an ingot casting, the circulation total amount of secondary water is 80-100 m
3, be equivalent to have the oxygen of 1.22kg to contact with ingot casting by the ingot casting surface.Very strong affinity is arranged between metal about 500-900 ℃ and the dissolved oxygen, generate loose cupric oxide, the metal under all right further oxidation oxide skin of oxygen.1.22kg oxygen be enough to the fully oxidation of ingot casting surface.It four is that the pressure of supply water of secondary water is at 3-5kg/cm
2, secondary cooling apparatus sprays to the ingot casting surface is not pure water but the two-phase fluid of air-water, sneaks into the air oxidation high temperature ingot casting strongly in the water.It five is, the secondary cooling can not be effectively with diameter at the Φ 200mm(or the suitable plate ingot of section) above ingot casting is cooled to below 60 ℃, the big specification ingot casting heart portion temperature of cooling off through secondary is still very high, is exposed to airborne copper ingot and also can continues oxidation.The ingot casting specification is big more, ingot surface temperature is high more, the ingot casting surface oxidation is also serious more.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of horizontal continuous-casting light ingot casting process units of nitrogen protection is provided.
Above-mentioned purpose realizes by following proposal:
A kind of horizontal continuous-casting light casting unit, it comprises crystallizer, described crystallizer comprises graphite cannula, crystallizer body, crystallizer overcoat, form water cavity between described crystallizer body and the described crystallizer overcoat, described crystallizer puts outward and has cooling water inlet and outlet, it is characterized in that, in the outlet of described crystallizer the nitrogen cooling device is installed, outlet at described nitrogen cooling device is equipped with the secondary water cooling plant, and on the ingot casting direction ingot casting draw-gear is installed also; Wherein, described nitrogen cooling device comprises a housing, is provided with opening on described housing, at described opening part nitrogen monitoring and recirculation control device is installed, and is provided with the nitrogen reflux mouth outside described outlet; A plurality of nitrogen cooling jet pipes and cast ingot position sniffer are installed in described nitrogen cooling device; A plurality of secondary cooling water pipes are installed in described secondary water cooling plant, and have the secondary cooling water refluxing opening on the described secondary water cooling plant.
According to the said equipment, it is characterized in that, be provided with purging motor at the opening part of described nitrogen cooling device.
The beneficial effects of the utility model:
The utility model adopts the segmented ingot casting device, and each section intensity of cooling is consistent with the coagulating property of alloy, and the high low temperature brittle zone when having avoided alloy graining is easy to obtain high-quality fine and close ingot casting.Outer then position at the nitrogen cooling device is provided with oxygen content detection probe and purging motor, prevents that the nitrogen enrichment from appearring in regional area, and operating personnel's personal safety is worked the mischief.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Horizontal continuous-casting light casting unit of the present utility model comprises crystallizer 1, this crystallizer 1 comprises graphite cannula 2, crystallizer body 3, crystallizer overcoat 4, form water cavity 5 between crystallizer body 3 and the crystallizer overcoat 4, have cooling water inlet 6 and outlet 7 on the crystallizer overcoat 4.Outlet at crystallizer 1 is equipped with nitrogen cooling device 8, in the outlet of nitrogen cooling device 8 secondary water cooling plant 9 is installed, and on the ingot casting direction ingot casting draw-gear 10 is installed also.Nitrogen cooling device 8 comprises a housing 11, is provided with opening 12 on housing 11, and nitrogen monitoring and recirculation control device 13 are installed at opening 12 places, is provided with nitrogen reflux mouth 14 outside outlet; A plurality of nitrogen cooling jet pipes 15 and cast ingot position sniffer 16 are installed in nitrogen cooling device 8; The opening part of described nitrogen cooling device is provided with purging motor 10a.A plurality of secondary cooling water pipes 17 are installed in secondary water cooling plant 9, and water pipe 17 sprays to ingot casting with secondary cooling water 19, and has secondary cooling water refluxing opening 18 on the secondary water cooling plant 9.
Before beginning casting, dummy bar head (not shown) and crystallizer 1 are aligned, crystallizer 1, nitrogen cooling device 8, secondary water-cooling apparatus 9 form airtight space with dummy bar (being ingot casting 16a when normally casting) respectively.At the casting initial stage, copper liquid only contacts with crystallizer assembly 1 with ingot casting, and the primary cooling water in the crystallizer assembly does not directly contact with metallic copper all the time.The casting length of 16 pairs of ingot castings of ingot casting sniffer at crystallizer assembly rear and casting speed are implemented on-line monitoring.When the measured value of the long sniffer 16 of ingot reaches setting value, open the nitrogen by-pass valve control, the nitrogen source of the gas enters nitrogen cooling device 8 by nitrogen jet pipe 15, air in the nitrogen cooling device 8 is by nitrogen monitoring, recirculation control device 13 emptyings, when monitoring device 13 detects nitrogen gas concn and surpasses 99.5%, recirculation control device 13 is closed the nitrogen purge valve automatically, and the nitrogen that refluxes is imported the nitrogen source of the gas.In nitrogen purge, purging motor 10a opens, and purges nitrogen cooling device 8 nitrogen on every side and reaches level of security.
When ingot casting sniffer 16 detects ingot casting 16a, the cooling water 19 of the secondary cooling water pipe 17 of secondary water cooling plant 9 sprays to ingot casting, when ingot casting moves to A position shown in Figure 1, ingot casting heart portion and surface temperature all are reduced to below 60 ℃, and the oxygen in the surrounding environment can not cause oxidation to ingot casting.Because all do not have in oxygen, the secondary water also not dissolved oxygen in the nitrogen cooling device, secondary water cooling plant, the ingot casting surface keeps the metal true qualities of light.
Claims (2)
1. horizontal continuous-casting light casting unit, it comprises crystallizer, described crystallizer comprises graphite cannula, crystallizer body, crystallizer overcoat, form water cavity between described crystallizer body and the described crystallizer overcoat, described crystallizer puts outward and has cooling water inlet and outlet, it is characterized in that, in the outlet of described crystallizer the nitrogen cooling device is installed, outlet at described nitrogen cooling device is equipped with the secondary water cooling plant, and on the ingot casting direction ingot casting draw-gear is installed also; Wherein, described nitrogen cooling device comprises a housing, is provided with opening on described housing, at described opening part nitrogen monitoring and recirculation control device is installed, and is provided with the nitrogen reflux mouth outside described outlet; A plurality of nitrogen cooling jet pipes and cast ingot position sniffer are installed in described nitrogen cooling device; A plurality of secondary cooling water pipes are installed in described secondary water cooling plant, and have the secondary cooling water refluxing opening on the described secondary water cooling plant.
2. equipment according to claim 1 is characterized in that, is provided with purging motor at the opening part of described nitrogen cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200952815U CN201979056U (en) | 2011-04-02 | 2011-04-02 | Horizontal continuous bright ingot casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200952815U CN201979056U (en) | 2011-04-02 | 2011-04-02 | Horizontal continuous bright ingot casting device |
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| Publication Number | Publication Date |
|---|---|
| CN201979056U true CN201979056U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200952815U Expired - Fee Related CN201979056U (en) | 2011-04-02 | 2011-04-02 | Horizontal continuous bright ingot casting device |
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| CN (1) | CN201979056U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900316A (en) * | 2014-04-15 | 2014-07-02 | 吴江市赛纳电子科技有限公司 | Fast cooling device for mold production |
| CN105642852A (en) * | 2016-01-26 | 2016-06-08 | 东北大学 | Air-cooled semi-continuous casting system and method of high-activity alloy |
| CN115365465A (en) * | 2022-08-22 | 2022-11-22 | 沈阳理工大学 | Cooling device on horizontal continuous casting copper plate strip |
| CN116921640A (en) * | 2023-07-26 | 2023-10-24 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
-
2011
- 2011-04-02 CN CN2011200952815U patent/CN201979056U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900316A (en) * | 2014-04-15 | 2014-07-02 | 吴江市赛纳电子科技有限公司 | Fast cooling device for mold production |
| CN105642852A (en) * | 2016-01-26 | 2016-06-08 | 东北大学 | Air-cooled semi-continuous casting system and method of high-activity alloy |
| CN115365465A (en) * | 2022-08-22 | 2022-11-22 | 沈阳理工大学 | Cooling device on horizontal continuous casting copper plate strip |
| CN115365465B (en) * | 2022-08-22 | 2023-10-13 | 沈阳理工大学 | Cooling device on horizontal continuous casting copper plate strip |
| CN116921640A (en) * | 2023-07-26 | 2023-10-24 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
| CN116921640B (en) * | 2023-07-26 | 2024-01-23 | 常州润来科技有限公司 | Cooling traction device and method for horizontal continuous casting copper pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20140402 |