CN101781712B - Runner type online degassing device - Google Patents
Runner type online degassing device Download PDFInfo
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- CN101781712B CN101781712B CN2010101365546A CN201010136554A CN101781712B CN 101781712 B CN101781712 B CN 101781712B CN 2010101365546 A CN2010101365546 A CN 2010101365546A CN 201010136554 A CN201010136554 A CN 201010136554A CN 101781712 B CN101781712 B CN 101781712B
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- deaerating chamber
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Abstract
The invention belongs to the technical field of metallurgy, and relates to a runner type online degassing device, which comprises a runner shell, a degassing chamber, gas permeable bricks, a heat insulating cover, a vent, a first baffle plate, a second baffle plate, a middle baffle plate, a gas inlet, an inlet and an outlet; the degassing chamber is arranged in the runner shell; the heat insulating cover is movably connected with the runner shell, and is provided with the vent; two ends of the degassing chamber are provided with the inlet and the outlet; the middle of the degassing chamber is provided with the middle baffle plate; the first baffle plate is arranged between the middle baffle plate and the inlet; the second baffle plate is arranged between the middle baffle plate and the outlet; gaps are reserved between the bottoms of the first and second baffle plates and the degassing chamber; the bottom of the middle baffle plate is fixedly connected with the degassing chamber; the gas permeable bricks are embedded on the bottom of the degassing chamber and arranged between the first baffle plate and the middle baffle plate and between the second baffle plate and the middle baffle plate; and the bottoms of the gas permeable bricks are provided with the gas inlet. The runner type online degassing device has low requirement on space, is provided with the submerged baffle plates and the heat insulating cover, reduces gas absorption again and surface oxidation of degassed aluminium liquid, and has good degassing purification effect.
Description
Technical field
What the present invention relates to is a kind of device of Metal smelting technical field, in particular a kind of runner type online degassing device.
Background technology
Along with the continuous development that aluminium alloy is used, also more and more higher to the requirement of its inner quality.Clean melt is the key that guarantees the aluminum alloy materials metallurgical quality.And in the factor that influences the melt purity, be present in hydrogen separating out in process of setting in the melt and will cause pore, defective such as loose, this is fatal for high-quality aluminium, and it has not only destroyed the inside continuity of aluminium, has reduced net sectional area and is formation of crack.So degasification occupies critical role in the production of high quality aluminium.
Mainly guarantee degassing effect in the aluminium industry, take wherein dissolved hydrogen out of by in aluminium liquid, feeding Purge gas (normally nitrogen or argon gas) by the outer online degasifying device of stove.In recent years, the gas permeable brick that is widely used in Steel industry begins to be applied to aluminium industry, has developed corresponding aluminium refining with gas permeable brick and gas-freeing system, is leaving standstill stove or is watering to wrap and obtained good effect, and beginning to be applied to online degasifying device.Than the rotary blowing degasification, use the online degasifying device of gas permeable brick to cancel moving partss such as graphite rotator, simplified equipment greatly, reduce the air-breathing and oxidation of molten aluminium liquid fluctuating and consequent surface simultaneously, therefore, has remarkable advantages at aspects such as equipment cost, operation, maintenances.
Find through literature search prior art, China's utility application number: 200720004056, title: removing hydrogen from aluminum melt device, this device is body structure, gas permeable brick is installed on the degasification tank bottom, its hydrogen degassing efficiency reaches more than 40%, and hydrogen richness can be reduced to 0.12～0.10ml/100gAl in the molten aluminium of processing back.The degasification tank that this device adopted holds the about 220kg of aluminium liquid.Because this degasifying device belongs to open body structure, and deaerating chamber is a square, the bottom is square and evenly arranges gas permeable brick, easy like this at edge formation degasification dead angle, and exist degasification abundant inadequately, problem such as air-breathing again after the degasification, and when changing kind, need put and do a large amount of aluminium liquid, the loss of metal caused.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of runner type online degassing device is provided, form rational aluminium liquid flowing-path, reduce the degasification dead angle, improve the Purge gas utilising efficiency by baffle plate is set; And adopt dive formula baffle plate and insulation cover to form enclosed space, and prevent the air admission deaerating chamber, effectively reduce the air-breathing and surface oxidation of aluminium liquid, compact construction, the starting material loss in the time of can reducing the alloy variety renovation greatly.
The present invention is achieved by the following technical solutions, the present invention includes: the chute shell, deaerating chamber, gas permeable brick, insulation cover, venting port, first baffle plate, second baffle, middle baffle plate, air intake, entrance and exit, wherein: the inside of chute shell is provided with deaerating chamber, insulation cover and chute shell are movably connected, insulation cover is provided with venting port, the two ends of deaerating chamber are provided with entrance and exit, the middle part of deaerating chamber is provided with middle baffle plate, be provided with first baffle plate between middle baffle plate and the inlet, be provided with second baffle between middle baffle plate and the outlet, be provided with the space between the bottom of first baffle plate and second baffle and the deaerating chamber, the bottom and the deaerating chamber of middle baffle plate are fixedly linked, gas permeable brick is embedded in the bottom of deaerating chamber and is arranged in first baffle plate, between second baffle and the middle baffle plate, the bottom of gas permeable brick is provided with air intake.
The top of described first baffle plate and second baffle is concordant with the top of deaerating chamber, is provided with the space of 50～250mm between the bottom of first baffle plate and second baffle and the deaerating chamber.
The distance of described first baffle plate and inlet and the distance of second baffle and outlet are 200～300mm.
Be provided with thermal insulation layer between described chute shell and the deaerating chamber.
Described middle baffle plate height is 2/3rds of a deaerating chamber height.
Described insulation cover is positioned at the top of chute shell, is movably connected by hinge and chute shell.
Described insulation cover, first baffle plate, second baffle and deaerating chamber form an airtight space.
Described deaerating chamber is that refractory materials is made, and adopts the not sticking casting material prefabricated moulding of aluminium.
Described thermal insulation layer is that silicate aluminum board is made.
Described gas permeable brick is equidistant to be the arrangement of " one " font.
The present invention can insert aluminium melting furnace arbitrarily easily or leave standstill stove and casting machine between launder system, realize the online degassing and purifying of aluminium liquid before the casting.Aluminium liquid is through inlet, enter deaerating chamber by the first baffle plate dive formula, Purge gas is passed through air intake, enter the aluminium liquid from the form disperse of the end face of gas permeable brick with bubble, bubble hydrogen in the aluminium liquid in the process of come-up enters by spreading constantly, overflow from aluminium liquid surface until bubble, above aluminium liquid, form protective atmosphere, and constantly discharge from venting hole; Aluminium liquid after the degasification flows out through outlet from the bottom of the second baffle of the other end, carries out follow-up filtration, purification and handles or directly enter the casting machine casting.In use can be according to the flow size of handling aluminium liquid, the quantity of choose reasonable gas permeable brick makes the metal gas consumption ratio remain on 0.14～0.35L/kg.
The present invention has the following advantages compared to existing technology: this apparatus structure compactness, and little to the place space requirement, heat insulation and heating equipment that need not be extra does not almost have the siccative of putting when changing the alloy kind; Adopt the baffle plate and the insulation cover of dive formula, form the closed deaerating chamber and block air, the air-breathing again and surface oxidation of aluminium liquid after the minimizing degasification; Degassing and purifying effects is good, and hydrogen richness can be reduced to 0.12～0.10mm/100gAl in the molten aluminium of processing back.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: comprising: chute shell 1, deaerating chamber 2, gas permeable brick 3, insulation cover 4, venting port 5, first baffle plate 6, second baffle 7, middle baffle plate 8, inlet 9, outlet 10 and air intake (not shown), wherein: the inside of chute shell 1 is provided with deaerating chamber 2, insulation cover 4 and chute shell 1 are movably connected, insulation cover 4 is provided with venting port 5, the two ends of deaerating chamber 2 are provided with inlet 9 and outlet 10, the middle part of deaerating chamber 2 is provided with middle baffle plate 8, middle baffle plate 8 and enter the mouth and be provided with first baffle plate 6 between 9, middle baffle plate 8 and export 10 between be provided with second baffle 7, leave the space between the bottom of first baffle plate 6 and second baffle 7 and deaerating chamber, the bottom of middle baffle plate 8 and deaerating chamber 2 are fixedly linked, gas permeable brick 3 is embedded in the bottom of deaerating chamber 2 and is arranged in first baffle plate 6, gap between second baffle 7 and the middle baffle plate 8, the bottom of gas permeable brick 3 is provided with air intake.
Be provided with thermal insulation layer 11 between described chute shell 1 and the deaerating chamber 2, can reduce the loss of temperature of aluminum liquid in the degasifying device.
Described thermal insulation layer 11 is that silicate aluminum board is made.
Described chute shell 1 is that steel are made, and guarantees that whole degasifying device has enough intensity.
The height of described middle baffle plate 8 is 2/3rds of deaerating chamber 2 height, can guarantee that flow velocity is steady in the aluminium liquid flow process, and middle baffle plate 8 can force molten aluminium to form convection current in vertical direction, the touch opportunity of increase and Purge gas.The number of middle baffle plate 8 also can be a plurality of, can strengthen decontamination effect improving.
Described insulation cover 4 is positioned at the top of chute shell 1, is movably connected by hinge 12 and chute shell 1, makes the insulation cover 4 can free folding.Insulation cover 4 can make whole degasifying device keep airtight, and the heat that reduces the degasifying device top scatters and disappears and reduces the air-breathing again and surface oxidation of molten aluminium.
Described deaerating chamber 2 is that refractory materials is made, and adopts the not sticking casting material prefabricated moulding of aluminium, can work long hours under molten aluminium washes away.
" one " the font arrangement of described 3 equidistant being of gas permeable brick.
The top of described first baffle plate 6 and second baffle 7 is concordant with deaerating chamber 2 tops, aluminium liquid can only be from the bottom of first baffle plate 6 and second baffle 7 enters in the mode of dive and flows out deaerating chamber 2, the liquid level top remains calmness, air can be blocked, and the effect that stops aluminium liquid surface scale or scum silica frost can be played; Be provided with the 100mm space between the bottom of first baffle plate 6 and second baffle 7 and the deaerating chamber 2.The distance of the distance of first baffle plate 6 and inlet 9 and second baffle 7 and outlet 10 is 200mm, conveniently to clear up.First baffle plate 6, second baffle 7 and middle baffle plate 8 be the while casting when pouring fireproof material deaerating chamber 2.
In the degassing and purifying process; insulation cover 4 is closed; 6 dives enter deaerating chamber 2 to aluminium liquid through first baffle plate; Purge gas enters the aluminium liquid from the bottom disperse by the form of gas permeable brick 3 with bubble; bubble hydrogen in the aluminium liquid in the process of come-up enters by spreading constantly, overflows from aluminium liquid surface until bubble, forms protective atmosphere above aluminium liquid; and constantly discharge from venting port 5, the aluminium liquid after the degasification flows out from the bottom of second baffle 7.This device degassing and purifying effects is good, and hydrogen richness can be reduced to 0.12～0.10mm/100gAl in the molten aluminium of processing back.
Claims (6)
1. runner type online degassing device, comprise: the chute shell, deaerating chamber, gas permeable brick, insulation cover, venting port, air intake, entrance and exit, it is characterized in that, also comprise: first baffle plate, second baffle and middle baffle plate, wherein: the inside of chute shell is provided with deaerating chamber, insulation cover and chute shell are movably connected, insulation cover is provided with venting port, the two ends of deaerating chamber are provided with entrance and exit, the middle part of deaerating chamber is provided with middle baffle plate, the height of middle baffle plate is 2/3rds of a deaerating chamber height, be provided with first baffle plate between middle baffle plate and the inlet, be provided with second baffle between middle baffle plate and the outlet, be provided with the space between the bottom of first baffle plate and second baffle and the deaerating chamber, the bottom and the deaerating chamber of middle baffle plate are fixedly linked, gas permeable brick is embedded in the bottom of deaerating chamber and is arranged in first baffle plate, between second baffle and the middle baffle plate, the bottom of gas permeable brick is provided with air intake, the top of described first baffle plate and second baffle is concordant with the top of deaerating chamber, be provided with the space of 50-250mm between the bottom of first baffle plate and second baffle and the deaerating chamber, the distance of described first baffle plate and inlet and the distance of second baffle and outlet are 200-300mm.
2. runner type online degassing device according to claim 1 is characterized in that, is provided with thermal insulation layer between described chute shell and the deaerating chamber.
3. runner type online degassing device according to claim 1 is characterized in that described insulation cover is positioned at the top of chute shell, is movably connected by hinge and chute shell.
4. runner type online degassing device according to claim 1 is characterized in that, described deaerating chamber is that refractory materials is made, and adopts the not sticking casting material prefabricated moulding of aluminium.
5. runner type online degassing device according to claim 2 is characterized in that, described thermal insulation layer is that silicate aluminum board is made.
6. runner type online degassing device according to claim 1 is characterized in that, described gas permeable brick is equidistant to be the arrangement of " one " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101365546A CN101781712B (en) | 2010-03-31 | 2010-03-31 | Runner type online degassing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101365546A CN101781712B (en) | 2010-03-31 | 2010-03-31 | Runner type online degassing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101781712A CN101781712A (en) | 2010-07-21 |
| CN101781712B true CN101781712B (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101365546A Expired - Fee Related CN101781712B (en) | 2010-03-31 | 2010-03-31 | Runner type online degassing device |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173629A (en) * | 2011-12-23 | 2013-06-26 | 秦皇岛开发区美铝合金有限公司 | Aluminum alloy cleanliness treatment process special for hub forging |
| CN102899506A (en) * | 2012-09-26 | 2013-01-30 | 宜兴市金啸铜业有限公司 | Aluminum liquid purifying device |
| CN102912148B (en) * | 2012-11-12 | 2015-10-28 | 苏州博能炉窑科技有限公司 | Remove the device of scum silica frost in aluminium liquid |
| CN102921937A (en) * | 2012-11-30 | 2013-02-13 | 无锡蠡湖叶轮制造有限公司 | Energy-saving quick degassing transfer packet |
| CN105588448B (en) * | 2014-10-24 | 2017-12-29 | 无锡日月合金材料有限公司 | A kind of hydrogen discharge equipment for working chamber |
| CN105112687A (en) * | 2015-09-13 | 2015-12-02 | 衢州峥嵘环保科技有限公司 | Launder-type on-line degassing device |
| CN105458228A (en) * | 2015-12-24 | 2016-04-06 | 天津立中合金集团有限公司 | Method for aluminum alloy online casting under nitrogen protection |
| CN105509484A (en) * | 2015-12-25 | 2016-04-20 | 天津恒天冠辰科技有限公司 | Energy-saving type smelting furnace sluice |
| CN107442761A (en) * | 2016-06-01 | 2017-12-08 | 郭俊峰 | Metal casting system and method |
| CN106363144B (en) * | 2016-11-18 | 2018-06-08 | 派罗特克（广西南宁）高温材料有限公司 | A kind of online degassing apparatus of the runner type with tilt functions |
| CN106938321A (en) * | 2017-05-02 | 2017-07-11 | 派罗特克（广西南宁）高温材料有限公司 | It is a kind of to remove airslide with dividing plate and gusset |
| CN107475534A (en) * | 2017-09-07 | 2017-12-15 | 洛阳新远大冶金成套设备有限公司 | Aluminium liquid degassing apparatus |
| WO2019204986A1 (en) * | 2018-04-24 | 2019-10-31 | 安徽阿尔泰克铝业材料科技有限公司 | Molten aluminum holding furnace provided with purification system and molten aluminum temperature detection method therefor |
| CN113399636A (en) * | 2021-07-07 | 2021-09-17 | 浙江海亮股份有限公司 | Seven-stream horizontal continuous casting equipment |
| CN114101604B (en) * | 2021-12-08 | 2023-08-18 | 贵州航天新力科技有限公司 | One-furnace multi-casting device of small vacuum induction furnace and use method thereof |
| CN114592146B (en) * | 2022-02-28 | 2022-11-15 | 南京工程学院 | Blank for ultra-wide and ultra-thin power battery aluminum foil and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2110438A1 (en) * | 1970-10-15 | 1972-06-02 | Basf Ag | Stream refining of metal melts - by inert gas purging and passage trough a granulate |
| CN2597486Y (en) * | 2003-01-21 | 2004-01-07 | 牛殿臣 | High-eddy jet-type molten aluminium degasifying device |
-
2010
- 2010-03-31 CN CN2010101365546A patent/CN101781712B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2110438A1 (en) * | 1970-10-15 | 1972-06-02 | Basf Ag | Stream refining of metal melts - by inert gas purging and passage trough a granulate |
| CN2597486Y (en) * | 2003-01-21 | 2004-01-07 | 牛殿臣 | High-eddy jet-type molten aluminium degasifying device |
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| CN101781712A (en) | 2010-07-21 |
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Effective date of registration: 20191225 Address after: 201203 room 105g, No.199, GuoShouJing Road, Shanghai pilot Free Trade Zone, Pudong New Area, Shanghai (biological and pharmaceutical innovation building) Co-patentee after: Shu Da Patentee after: Shanghai Jiaotong University Intellectual Property Management Co.,Ltd. Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: SHANGHAI JIAO TONG University |
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Effective date of registration: 20210208 Address after: 330013 office 210-2, investment promotion building, 568 Fenglin Avenue, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi jindatong New Material Technology Co.,Ltd. Address before: Room 105g, biology and medicine innovation building, 199 GuoShouJing Road, Shanghai pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee before: Shanghai Jiaotong University Intellectual Property Management Co.,Ltd. Patentee before: Shu Da |
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