WO2011069306A1 - Vacuum exhaust device for melting aluminum alloy - Google Patents
Vacuum exhaust device for melting aluminum alloy Download PDFInfo
- Publication number
- WO2011069306A1 WO2011069306A1 PCT/CN2009/075947 CN2009075947W WO2011069306A1 WO 2011069306 A1 WO2011069306 A1 WO 2011069306A1 CN 2009075947 W CN2009075947 W CN 2009075947W WO 2011069306 A1 WO2011069306 A1 WO 2011069306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vacuum
- aluminum alloy
- aluminum
- pool
- tank
- Prior art date
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 14
- 238000002844 melting Methods 0.000 title claims abstract description 5
- 230000008018 melting Effects 0.000 title claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 14
- 238000003723 Smelting Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- 238000013022 venting Methods 0.000 claims 2
- 238000005266 casting Methods 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
Definitions
- the invention relates to a vacuum exhausting device, in particular to a vacuum exhausting device for melting aluminum alloy. Background technique
- the aluminum processing and continuous casting and rolling mill consists of a holding furnace, a deaerator, a filter, a flow tube, a transition flow tank, a front tank and a casting chamber.
- a deaerator a filter
- a flow tube a flow tube
- a transition flow tank a transition flow tank
- a front tank a casting chamber.
- macroscopic structures such as cast and rolled plate thickness are detected. , that is, longitudinal difference, lateral difference, plate surface defects, that is, lines, waves, metal oxide layers, and plate surface defects made by roll defects, etc., can make a correct judgment, but microscopic structure defects are difficult in the casting and rolling process.
- the chamber temperature is adjusted to adjust the temperature of the holding furnace.
- the present invention proposes a vacuum exhausting apparatus for aluminum alloy smelting, which has a simple structure and can effectively remove gas in the aluminum liquid, thereby reducing microscopic structural defects in the aluminum alloy product.
- a vacuum exhausting device for aluminum alloy smelting comprising a cast aluminum front box, wherein a pair of cast aluminum sealing gas partitions and connections on the front and rear sides of the flow tank are arranged in the flow tank of the cast aluminum front box;
- the cover box at the upper end of the air sealing baffle is provided with a vacuum exhaust pipe at the top of the cover box.
- the invention has the advantages that: after the aluminum liquid enters the vacuum chamber, the bubbles are automatically extracted from the aluminum liquid under the vacuum state,
- the aluminum liquid passes through the vacuum exhausting device and reaches the front tank and the casting cavity. At this time, the flow is short, the temperature is low, and the probability of inhaling is greatly reduced.
- Figure 1 is a schematic view of the structure of the present invention.
- FIG. 2 is a schematic view of the working pipeline of the vacuum pump of the present invention.
- a vacuum exhausting device for aluminum alloy smelting comprising a cast aluminum front box 1, characterized in that: the cast aluminum
- the flow tank 2 of the front tank is provided with a pair of cast aluminum sealing gas partitions 3 on the front and rear sides of the flow tank, and a casing 4 connected to the upper end of the gas sealing partition, and a vacuum exhausting line 5 is provided at the top of the casing.
- a damping block 6 is arranged between the front and rear sealing air partitions in the cast aluminum front tank flow trough for turbulent flow when the aluminum liquid is degassed, so that the bubbles dissolved in the aluminum liquid are actively and better discharged.
- the vacuum exhaust line is connected to the suction end of a plurality of vacuum pumps 7, and the vacuum exhaust line is sequentially provided with a cooler 8, a flow meter 9, and a pressure regulating valve 10.
- the vacuum gauge 11 and the air cleaner 12 are provided.
- the suction end 13 of the vacuum pump is also connected to an inlet pipe 14, the inlet end 15 of the inlet pipe is connected to the inlet chamber 16 of the pool, and the outlet end 17 of the vacuum pump is connected via the drain pipe 18.
- the drain chamber 19 of the pool is connected to the drain chamber of the pool through the pressure regulating valve 20, and a partition 21 is disposed between the inlet chamber and the drain chamber of the pool, and the inlet end of the inlet chamber is provided
- the filter 22, the discharge line 23 provided with the pressure regulating valve can be used both for exhausting and for draining.
- An infrared liquid level detecting collector 24 is further disposed in the flow tank of the cast aluminum front box, and an observation hole 25 for observing the internal aluminum liquid is disposed on the cover box.
- the aluminum liquid 27 smelted in the smelting furnace 26 is first subjected to the first degassing treatment through the deaeration tank 28, and then filtered through the filter box 29 and then into the ladle of the cast aluminum front box, because the front box is from the continuous casting machine or There is still a certain distance between the casting equipment 30 such as the continuous rolling mill, so a degassing is carried out in the middle of the launder.
- the vacuum degassing by the invention has high degassing efficiency, good effect, simple and easy realization of equipment, and therefore has strong practicability.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A vacuum exhaust device for melting aluminum alloy includes a fore chamber (1). A pair of sealing baffles (3) are arranged respectively at the front side and the back side in a chute (2) of the fore chamber (1). A protecting cover (4) is connected to the upper ends of the sealing baffles (3) and the top of the protecting cover (4) is provided with a vacuum exhaust pipeline (5). The device has a simple structure and can remove the gas in the molten aluminum effectively.
Description
铝合金熔炼用真空排气装置 技术领域 Vacuum exhausting device for aluminum alloy smelting
本发明涉及一种真空排气装置， 特别涉及一种铝合金熔炼用真空排气装置。 背景技术 The invention relates to a vacuum exhausting device, in particular to a vacuum exhausting device for melting aluminum alloy. Background technique
一般铝加工连铸连轧机列由保温炉、 除气机、过滤器、流管、过渡流槽和前 箱、 铸腔组成， 在轧制产品过程中， 检测宏观组织， 如铸轧板厚差， 即纵向差、 横向差，板面缺陷，即线条、波浪、金属氧化层以及轧辊缺陷所制的板面缺陷等， 都可以做出正确判断， 但微观组织缺陷在铸轧过程中就很难作出判断和进行处 理， 例如铸轧过程中， 为了满足铸轧工艺参数， 特别是铸轧时前箱铝液温度， 根 据铸轧产品规格， 即产品的宽、窄、薄、厚等，保证铸腔温度， 调整保温炉温度。 当铝液温度升高时， 其吸气的几率大幅上升， 再加之随季节的变换， 大气环境相 对湿度增大时， 金属的吸气更为明显。 除气机的效率是有限的， 不能将铝液中的 气体全部除去， 从而造成铸轧板出现较多微观组织缺陷。 Generally, the aluminum processing and continuous casting and rolling mill consists of a holding furnace, a deaerator, a filter, a flow tube, a transition flow tank, a front tank and a casting chamber. During the rolling process, macroscopic structures such as cast and rolled plate thickness are detected. , that is, longitudinal difference, lateral difference, plate surface defects, that is, lines, waves, metal oxide layers, and plate surface defects made by roll defects, etc., can make a correct judgment, but microscopic structure defects are difficult in the casting and rolling process. Make judgments and handles, for example, in the casting and rolling process, in order to meet the casting and rolling process parameters, especially the temperature of the front tank aluminum liquid during casting and rolling, according to the specifications of the casting and rolling products, that is, the width, narrowness, thickness and thickness of the product, ensuring casting The chamber temperature is adjusted to adjust the temperature of the holding furnace. When the temperature of the aluminum liquid rises, the probability of inhalation increases sharply, and as the season changes, the inhalation of the metal is more pronounced when the relative humidity of the atmospheric environment increases. The efficiency of the deaerator is limited, and the gas in the aluminum liquid cannot be completely removed, resulting in many microstructure defects in the cast strip.
发明内容 Summary of the invention
为了解决上述问题，本发明提出了一种铝合金熔炼用真空排气装置，该装置 结构简单， 能有效去除铝液中的气体， 从而减少铝合金制品中的微观组织缺陷。 In order to solve the above problems, the present invention proposes a vacuum exhausting apparatus for aluminum alloy smelting, which has a simple structure and can effectively remove gas in the aluminum liquid, thereby reducing microscopic structural defects in the aluminum alloy product.
本发明的特征在于： 一种铝合金熔炼用真空排气装置， 包括铸铝前箱， 所述 铸铝前箱的流槽内设置有一对位于流槽前后侧的铸铝封气隔板以及连接于封气 隔板上端的罩箱， 所述罩箱顶部设有真空排气管路。 The invention is characterized in that: a vacuum exhausting device for aluminum alloy smelting, comprising a cast aluminum front box, wherein a pair of cast aluminum sealing gas partitions and connections on the front and rear sides of the flow tank are arranged in the flow tank of the cast aluminum front box; The cover box at the upper end of the air sealing baffle is provided with a vacuum exhaust pipe at the top of the cover box.
本发明的优点在于：铝液进入真空腔后在真空的状态下气泡自动从铝液中提 取出来， The invention has the advantages that: after the aluminum liquid enters the vacuum chamber, the bubbles are automatically extracted from the aluminum liquid under the vacuum state,
在铸轧线上安装真空排气装置后， 铝液通过真空排气装置后到达前箱和铸 腔， 此时流程较短、 温度较低， 吸气的概率大幅降低。 After the vacuum exhausting device is installed on the casting line, the aluminum liquid passes through the vacuum exhausting device and reaches the front tank and the casting cavity. At this time, the flow is short, the temperature is low, and the probability of inhaling is greatly reduced.
附图说明 DRAWINGS
图 1为本发明的结构示意图。 Figure 1 is a schematic view of the structure of the present invention.
图 2为本发明真空泵的工作管路示意图。 2 is a schematic view of the working pipeline of the vacuum pump of the present invention.
具体实施方式 detailed description
一种铝合金熔炼用真空排气装置， 包括铸铝前箱 1， 其特征在于： 所述铸铝
前箱的流槽 2内设置有一对位于流槽前后侧的铸铝封气隔板 3以及连接于封气隔 板上端的罩箱 4， 所述罩箱顶部设有真空排气管路 5。 A vacuum exhausting device for aluminum alloy smelting, comprising a cast aluminum front box 1, characterized in that: the cast aluminum The flow tank 2 of the front tank is provided with a pair of cast aluminum sealing gas partitions 3 on the front and rear sides of the flow tank, and a casing 4 connected to the upper end of the gas sealing partition, and a vacuum exhausting line 5 is provided at the top of the casing.
所述铸铝前箱流槽内前后封气隔板之间设有阻尼块 6， 用于在铝液除气时造 成紊流， 使溶于铝液中的气泡主动、 更好地排出。 A damping block 6 is arranged between the front and rear sealing air partitions in the cast aluminum front tank flow trough for turbulent flow when the aluminum liquid is degassed, so that the bubbles dissolved in the aluminum liquid are actively and better discharged.
为了达到最佳的排气效果，所述真空排气管路与若干台真空泵 7的吸气端相 连接， 所述真空排气管路上依次布设有冷却器 8、 流量计 9、 调压阀 10、 真空表 11以及空气滤清器 12。 In order to achieve an optimal exhausting effect, the vacuum exhaust line is connected to the suction end of a plurality of vacuum pumps 7, and the vacuum exhaust line is sequentially provided with a cooler 8, a flow meter 9, and a pressure regulating valve 10. The vacuum gauge 11 and the air cleaner 12 are provided.
所述真空泵的吸气端 13还与一进水管 14相连接， 所述进水管的进水端 15 与水池的进水腔 16相连接， 所述真空泵的出水端 17—路经排水管 18接入水池 的排水腔 19， 另一路经调压阀 20接至水池的排水腔， 水池的进水腔与排水腔之 间设有隔板 21， 所述进水腔内进水端一侧设有过滤器 22， 设有调压阀的排出管 路 23既可有用排气又可用于排水。 The suction end 13 of the vacuum pump is also connected to an inlet pipe 14, the inlet end 15 of the inlet pipe is connected to the inlet chamber 16 of the pool, and the outlet end 17 of the vacuum pump is connected via the drain pipe 18. The drain chamber 19 of the pool is connected to the drain chamber of the pool through the pressure regulating valve 20, and a partition 21 is disposed between the inlet chamber and the drain chamber of the pool, and the inlet end of the inlet chamber is provided The filter 22, the discharge line 23 provided with the pressure regulating valve, can be used both for exhausting and for draining.
所述铸铝前箱的流槽内还设置有红外液位检测采集器 24， 罩箱上设有用于 观察内部铝液的观察孔 25。 An infrared liquid level detecting collector 24 is further disposed in the flow tank of the cast aluminum front box, and an observation hole 25 for observing the internal aluminum liquid is disposed on the cover box.
熔炼炉 26内熔炼好的铝液 27， 首先经过除气箱 28进行第一道除气处理， 然后经过滤箱 29过滤后进入铸铝前箱的流槽内， 由于前箱距连铸机或连轧机等 铸造设备 30还有一定的距离， 故在流槽中部再进行一道除气。 The aluminum liquid 27 smelted in the smelting furnace 26 is first subjected to the first degassing treatment through the deaeration tank 28, and then filtered through the filter box 29 and then into the ladle of the cast aluminum front box, because the front box is from the continuous casting machine or There is still a certain distance between the casting equipment 30 such as the continuous rolling mill, so a degassing is carried out in the middle of the launder.
采用本发明进行真空除气， 除气效率高， 效果好， 设备简单易实现， 因此具 有极强的实用性。
The vacuum degassing by the invention has high degassing efficiency, good effect, simple and easy realization of equipment, and therefore has strong practicability.
Claims
1、 一种铝合金熔炼用真空排气装置， 包括铸铝前箱， 其特征在于： 所述铸 铝前箱的流槽内设置有一对位于流槽前后侧的铸铝封气隔板以及连接于封气隔 板上端的罩箱， 所述罩箱顶部设有真空排气管路。 1. A vacuum exhausting device for aluminum alloy smelting, comprising a cast aluminum front box, wherein: the cast aluminum front box has a pair of cast aluminum sealing gas partitions and connections on the front and rear sides of the flow tank. The cover box at the upper end of the air sealing baffle is provided with a vacuum exhaust pipe at the top of the cover box.
2、 根据权利要求 1所述的铝合金熔炼用真空排气装置， 其特征在于： 所述 铸铝前箱流槽内前后封气隔板之间设有阻尼块， 用于在铝液除气时造成紊流。 2. The vacuum venting apparatus for aluminum alloy smelting according to claim 1, wherein: a damping block is disposed between the front and rear sealing gas partitions in the cast aluminum front tank flow tank for degassing the aluminum liquid. It causes turbulence.
3、 根据权利要求 1所述的铝合金熔炼用真空排气装置， 其特征在于： 所述 真空排气管路与若干台真空泵的吸气端相连接。 The vacuum exhausting apparatus for aluminum alloy melting according to claim 1, wherein the vacuum exhausting line is connected to an intake end of a plurality of vacuum pumps.
4、 根据权利要求 3所述的铝合金熔炼用真空排气装置， 其特征在于： 所述 真空排气管路上依次布设有冷却器、 流量计、 调压阀、 真空表以及空气滤清器。 The vacuum exhausting apparatus for aluminum alloy melting according to claim 3, wherein the vacuum exhausting line is provided with a cooler, a flow meter, a pressure regulating valve, a vacuum gauge, and an air cleaner.
5、 根据权利要求 3所述的铝合金熔炼用真空排气装置， 其特征在于： 所述 真空泵的吸气端还与一进水管相连接，所述进水管的进水端与水池的进水腔相连 接，所述真空泵的出水端一路经排水管接入水池的排水腔，另一路经调压阀接至 水池的排水腔， 水池的进水腔与排水腔之间设有隔板。 The vacuum exhausting device for aluminum alloy smelting according to claim 3, wherein: the suction end of the vacuum pump is further connected to a water inlet pipe, and the water inlet end of the water inlet pipe and the water inlet of the water pool The chamber is connected, the outlet end of the vacuum pump is connected to the drainage chamber of the pool through the drain pipe, and the other is connected to the drainage chamber of the pool through the pressure regulating valve, and a partition is arranged between the inlet chamber and the drainage chamber of the pool.
6、 根据权利要求 1所述的铝合金熔炼用真空排气装置， 其特征在于： 所述 铸铝前箱的流槽内还设置有红外液位检测采集器，罩箱上设有用于观察内部铝液 的观察孔。 6. The vacuum venting apparatus for aluminum alloy smelting according to claim 1, wherein: the infrared tank level detecting collector is further disposed in the flow tank of the cast aluminum front box, and the cover box is provided for observing the inside. Observation hole for aluminum liquid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920317192.3 | 2009-12-12 | ||
| CN2009203171923U CN201565578U (en) | 2009-12-12 | 2009-12-12 | Vacuum exhaust apparatus for melting aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011069306A1 true WO2011069306A1 (en) | 2011-06-16 |
Family
ID=42657860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2009/075947 WO2011069306A1 (en) | 2009-12-12 | 2009-12-24 | Vacuum exhaust device for melting aluminum alloy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201565578U (en) |
| WO (1) | WO2011069306A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605374A (en) * | 2020-11-26 | 2021-04-06 | 黄石市东楚铝加工技术研究院有限公司 | Safety monitoring device for manufacturing of fusion cast aluminum bar |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624987A (en) * | 2015-02-12 | 2015-05-20 | 山东鲁明新材料有限公司 | Molten aluminum flow groove with aluminum water storage function |
| CN104858377B (en) * | 2015-05-26 | 2016-11-30 | 安阳恒安电机有限公司 | A kind of degassing device for aluminum alloy melts and degasification method |
| CN105605918B (en) * | 2015-12-25 | 2018-06-22 | 秦皇岛戴卡兴龙轮毂有限公司 | A kind of smelting furnace diversion pipe |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082413A (en) * | 1965-02-04 | 1967-09-06 | Krupp Ag Huettenwerke | Vacuum degassing of molten metal |
| JPS63174765A (en) * | 1987-01-14 | 1988-07-19 | Hitachi Cable Ltd | Continuous vacuum degassing device for molten metal |
| US5056692A (en) * | 1988-10-13 | 1991-10-15 | The Electricity Counsil And Chamberlin & Hill Plc | Dispensing apparatus for molten metal |
| WO2009072893A1 (en) * | 2007-12-03 | 2009-06-11 | Norsk Hydro Asa | Arrangement related to equipment for continuous or semi-continuous casting of metal |
-
2009
- 2009-12-12 CN CN2009203171923U patent/CN201565578U/en not_active Expired - Fee Related
- 2009-12-24 WO PCT/CN2009/075947 patent/WO2011069306A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082413A (en) * | 1965-02-04 | 1967-09-06 | Krupp Ag Huettenwerke | Vacuum degassing of molten metal |
| JPS63174765A (en) * | 1987-01-14 | 1988-07-19 | Hitachi Cable Ltd | Continuous vacuum degassing device for molten metal |
| US5056692A (en) * | 1988-10-13 | 1991-10-15 | The Electricity Counsil And Chamberlin & Hill Plc | Dispensing apparatus for molten metal |
| WO2009072893A1 (en) * | 2007-12-03 | 2009-06-11 | Norsk Hydro Asa | Arrangement related to equipment for continuous or semi-continuous casting of metal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605374A (en) * | 2020-11-26 | 2021-04-06 | 黄石市东楚铝加工技术研究院有限公司 | Safety monitoring device for manufacturing of fusion cast aluminum bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201565578U (en) | 2010-09-01 |
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