CN202440544U - Oxygen-free copper refining furnace - Google Patents
Oxygen-free copper refining furnace Download PDFInfo
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- CN202440544U CN202440544U CN2011204589430U CN201120458943U CN202440544U CN 202440544 U CN202440544 U CN 202440544U CN 2011204589430 U CN2011204589430 U CN 2011204589430U CN 201120458943 U CN201120458943 U CN 201120458943U CN 202440544 U CN202440544 U CN 202440544U
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- gas
- copper
- refining furnace
- oxygen
- free copper
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Abstract
The utility model discloses an oxygen-free copper refining furnace. An air intake pipeline which is provided with a one-way valve is connected in the refining furnace; and the terminal end of the pipeline is connected with a gas distributor. Inert gas is inflated into liquid-state copper through the air intake pipeline to further improve purity of the liquid-state copper, thereby reducing oxygen content.
Description
Technical field
The utility model designs a kind of copper and copper alloy refining furnace, particularly through feeding the oxygen free copper refining furnace of rare gas element refining oxygen free copper.
Background technology
In the process of melting copper, oxygen level is an important index.Oxygen free copper does not have the hydrogen embrittlement phenomenon, and electric conductivity is high, and processing characteristics and welding property, corrosion resistance nature and low-temperature performance are all good.The method of producing at present oxygen free copper is in smelting furnace, to cover charcoal on the liquid copper and the graphite scale reaches deoxygenation and avoids the method that oxygen gets into liquid copper in the air.The hypoxemia copper oxygen level that the conventional cast method is produced is generally at 200～400ppm, and oxygen gets in mould and the process of cooling at liquid copper and sucks.And up-drawing method is produced oxygen-free copper bar because copper directly cooling in mold do not contact with air, thereby oxygen level is low, generally below 50ppm.But be difficult to reach below the 10ppm.Among the patent of invention publication number CN1415768A (a kind of refining techniques of producing ultralow oxygen copper) a kind of refining furnace of producing ultralow oxygen copper is provided, this refining furnace adopts the next dissolved oxygen that further reduces the liquid copper of method that feeds inert protective gas from the gas permeable brick of smelting furnace low side.But because copper feed channel and gas permeable brick be all in the refining furnace bottom, very big pressure is arranged at the refining furnace bottom, therefore will use high pressure gas to feed, and gas gets into behind the liquid copper by reason of heavy pressure, the flow velocity of very difficult pilot-gas.On the other hand, in case close air inlet, perhaps intake pressure is not enough, and liquid copper will get into breather line, stops up breather line.After each melting finishes, also can stop up gas permeable brick and breather line after remaining copper solidifies, thereby practical effect is unsatisfactory.
Summary of the invention
Be lower than the oxygen free copper of 10ppm in order to melt out oxygen level, the utility model provides a kind of oxygen free copper refining furnace, and this refining furnace not only can melt out the oxygen free copper that oxygen level is lower than 10ppm, can also effectively avoid liquid copper to stop up the problem of intake ducting.
The utility model solves the technical scheme that its technical problem adopted: a kind of oxygen free copper refining furnace; It is characterized in that having increased diffuser; Vacuum breaker is housed on the intake ducting, flows backwards to prevent air, thereby in pipeline, stop liquid copper to get into pipeline air seal; The intake ducting end is connected with gas distributor, plays gas distribution simultaneously and prevents that liquid copper from getting into the effect of pipeline.The gas distributor diameter is greater than pipe diameter, and its end has strip opening or circular open or other configured openings, and gas overflows from opening, reaches the effect of distributing gas.Liquid copper top is coated with charcoal and graphite scale, with reduce liquid copper with prevent that liquid copper from contacting with air.The gas that in liquid copper, is fed is nitrogen, argon gas or other rare gas elementes, changes the dynamic conditions of reaction between carbon and oxygen, further reduces the oxygen level in the liquid copper.
The beneficial effect of the utility model is, the copper oxygen level after the refining is not higher than 10ppm, and its intake ducting is difficult for stopping up, and is simple in structure, easy to maintenance.
Description of drawings
Fig. 1 refining furnace one-piece construction figure;
Fig. 2 vacuum breaker synoptic diagram;
Fig. 3 gas distributor synoptic diagram;
(1) inlet pipe among the figure, (2) vacuum breaker, (3) graphite linings, (4) liquid copper, (5) gas distributor, (6) production well.
Embodiment
Below in conjunction with accompanying drawing and instance the utility model is further specified.
Be coated with graphite linings above the liquid copper (4) of fusing, graphite linings can be reduced oxidized copper in the liquid copper, and stops liquid copper to contact with air.Inlet pipe (1) feeds nitrogen, argon gas or other rare gas elementes in the refining furnace, and vacuum breaker (2) is housed on inlet pipe (1), and the effect of vacuum breaker (2) is inlet pipe (1) in, to prevent liquid copper (4) backflow entering inlet pipe during no air pressure.Gas flow is as shown in Figure 2 in the individual event valve.Vacuum breaker is closed automatically during stuffiness, and the gas that is enclosed in the pipeline can stop copper solutions to reflux.Have production well (6) on the gas distributor (5), gas overflows from production well, plays the effect of distributing gas.When stopping air inlet, the vacuum breaker sealing still because the terminal air pressure of intake ducting is high, still can get into a part of liquid copper after gas is compressed in the pipeline, and the effect of sparger is to hold the liquid copper backflow that this part pressure change causes.Prevent to get into pipeline.The rare gas element that feeds in the liquid copper helps the come-up of impurity in the liquid copper and the eliminating of hydrogen-oxygen, and it is lower to access content than traditional method of refining, foreign matter content high-quality copper still less.
Claims (3)
1. an oxygen free copper refining furnace is characterized in that having increased diffuser, and vacuum breaker is housed on the intake ducting, and the intake ducting end is connected with gas distributor.
2. oxygen free copper refining furnace according to claim 1 is characterized in that: the gas distributor diameter is greater than pipe diameter, and its end has strip opening or circular open or other configured openings, and gas overflows from opening, reaches the effect of distributing gas.
3. oxygen free copper refining furnace according to claim 1 is characterized in that: the gas that in liquid copper, is fed is nitrogen, argon gas or other rare gas elementes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204589430U CN202440544U (en) | 2011-11-18 | 2011-11-18 | Oxygen-free copper refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204589430U CN202440544U (en) | 2011-11-18 | 2011-11-18 | Oxygen-free copper refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440544U true CN202440544U (en) | 2012-09-19 |
Family
ID=46821998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204589430U Expired - Fee Related CN202440544U (en) | 2011-11-18 | 2011-11-18 | Oxygen-free copper refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202440544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865602B (en) * | 2017-03-02 | 2019-04-23 | 攀枝花学院 | Graphite-titanium suboxide composite material preparation method |
-
2011
- 2011-11-18 CN CN2011204589430U patent/CN202440544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865602B (en) * | 2017-03-02 | 2019-04-23 | 攀枝花学院 | Graphite-titanium suboxide composite material preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGXI RUITAI COPPER CO., LTD. Free format text: FORMER OWNER: FENGCHENG XINQI METAL PRODUCTS CO., LTD. Effective date: 20140623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140623 Address after: 331100 Fengcheng City, Jiangxi province resources recycling industry base Patentee after: Jiangxi Ruitai Copper Co. Ltd. Address before: 331100 Fengcheng City, Jiangxi province resources recycling industry base Patentee before: Fengcheng Xinqi Metal Products Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |