CN1302876C - Active mode siphon pipe - Google Patents
Active mode siphon pipe Download PDFInfo
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- CN1302876C CN1302876C CNB031439233A CN03143923A CN1302876C CN 1302876 C CN1302876 C CN 1302876C CN B031439233 A CNB031439233 A CN B031439233A CN 03143923 A CN03143923 A CN 03143923A CN 1302876 C CN1302876 C CN 1302876C
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- siphon pipe
- magnesium
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- active
- conveying
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Abstract
The present invention relates to an active mode siphon pipe which is equipment for smelting and casting techniques of magnesium and magnesium alloy, and particularly belongs to a siphon pipe device for conveying molten magnesium metal; the present invention also provides active mode siphon pipe equipment for conveying and tranferring the molten magnesium metal from stoves to stoves and from stoves to product producing equipment in the smelting and production process of magnesium and magnesium alloy, which is characterized in that one end of the siphon pipe is provided with a pneumatic pump and an adjustable valve, so that the siphon pipe can have the functions of automatically starting up, pausing, stopping conveying the molten magnesium metal and adjusting the conveying rate of the molten magnesium metal. The active mode siphon pipe is suitable for the commercial process of magnesium, such as the transfer, casting and ingot casting of the molten magnesium metal, the production of sacrificial anodes, continuous casting, the recovery of waste magnesium, etc.; nickel-free heat-resistant steel is used as a material for manufacturing the active mode siphon pipe, and the material is required to be nonscale when the heat-resistant temperature is more than 1000 DEG C, and can prevent secondary pollution caused by the molten magnesium metal.
Description
Technical field
The present invention relates to a kind of equipment that is used for magnesium and magnesium alloy smelting and foundry engieering, especially belong to the siphon unit that the magnesium molten metal is carried.
Background technology
In the industrial processes relevant, generally all need the good molten metal of fusing is transported to down the device of road production process with molten metal.The conveying of magnesium liquid is included in different furnace rooms with transfer, stove carries out between mould and production equipment, magnesium liquid height is active, the chemical affinity of magnesium and oxygen, water, organic matter etc. is very strong, and very easily oxidation, burning even blast are one of safe practice keys so magnesium liquid is carried.Magnesium liquid carries improper oxidation that causes and oxide skin to be involved in product simultaneously, reduces the quality of magnesium products, even makes product rejection.The requirement of therefore magnesium liquid being carried and shifting is steady, safe, anti-oxidation, and the speed, metal liquid measure, continuity and the intermittence that require to carry can both in time be controlled.
The transfer of magnesium liquid at present and carry the method that adopts to have manually to dip, from stove, hang out that crucible is toppled over again, the stove upset is toppled over, multiple modes such as crucible bottom burrows drainage, siphon with casting ladle.The melting scene of magnesium is in high temperature, is surrounded by pernicious gas, makes the non-constant of working condition.Under this environment manually with casting ladle shift a spot of magnesium liquid still can, shift but produce the magnesium liquid require usually to finish tons of in the short time, labour intensity is too big, and is real difficult by manually finishing; And because magnesium liquid can glue bag, the very fast oxidation of sticking bag magnesium liquid, burning, need the molten flux wash bags, whenever watering once all needs wash bags, in case the oxidation skin is involved in product, flux can bring many problems simultaneously, and especially the volatilization of flux causes the corrosion and damage of factory building, equipment, therefore shifts molten metal with casting ladle and makes production complicated.
From stove, hang out transfer and mode of movement that crucible is toppled over again, can cause the temperature of molten metal to control, thereby influence product quality in whole casting process strictness.And crucible hangs out from stove because of variations in temperature acutely reaches crucible outer wall and atmosphere catalytic oxidation, causes that oxide skin comes off, and crucible life is shortened greatly.The crucible access times reduce must increase production cost.
When the whole turnover and dumping of stove realized that molten metal shifts, because stove is all very high usually, liquid was toppled under very big drop during upset, and operational danger is big, has safety issue; Simultaneously, magnesium liquid seethes under the very big situation of drop, and oxidation reaction is very violent, and this mode generally requires the process can not be very long, so this mode is mainly used in ingot casting, is not suitable for the little Foundry Production of requirement flow.
When pump (mechanical pump, electromagnetic pump) transfer and transferring metal liquid, because working under hard conditions of pump, cause the pump life-span short, mechanical breakdown is many, and is stuck easily, make to produce and interrupt, therefore poor reliability starts all very trouble simultaneously, must be full of pipeline to molten metal earlier after, pump could start, but does not also have easily the method in molten metal filing full packages road at present.
The crucible bottom drainage that burrows realizes that molten metal shifts also existing problems.Crucible bottom burrows behind the welded tube road, has destroyed the integrality of crucible, causes potential safety hazard, because the restriction of pipeline, crucible is difficult to take out from stove, also can't carry out the technical specification of security requirement.Therefore generally do not adopt the crucible bottom drainage that burrows to get the liquid mode.
Siphon pipe shifts and transferring metal liquid, and the siphon pipe most common form is the pipe of a bending, and an end mouth of pipe inserts in the metal liquid pond, during startup, must will be full of liquid in the pipe.Siphon at the beginning, liquid promptly flows out at the other end mouth of pipe by bend pipe in the high liquid level (HLL), till two liquid levels reached sustained height, this process siphon pipe was passive.Shifting and carry the great advantage of magnesium liquid with siphon pipe is sealing, can prevent that magnesium liquid is oxidized when carrying, the transfer of liquid magnesium alloy between duplex furnace when being mainly used in die casting production now.
More than analyze and can find, the method for existing conveying and transfer magnesium liquid all exists problem more or less, can not satisfy the production needs.The phenomenon partly cause that labour intensity is big, production environment is abominable, security incident is frequent and conveying and to shift the method for magnesium liquid relevant, therefore improve magnesium industry produce in magnesium liquid carry and the technology and the equipment that shift very meaningful.
Summary of the invention
The active siphon pipe that the present invention seeks to realize magnesium and liquid magnesium alloy is carried, and starting and stopping is that active controllable, flow are adjustable, can be intermittently, can be continuous, and equipment and simple to operate, safe, reliably.Be applicable to production, the magnesium alloy continuous casting of magnesium alloy cast, magnesium and magnesium alloy ingot, magnesium sacrificial anode, the production fields such as waste recovery of magnesium, improve production status.
The present invention connects pulsometer at siphonal imbibition end to make active siphon pipe, structure designs as shown in Figure 2, and active siphon pipe is made up of pulsometer (1), valve (2), valve regulated bar (3), air inlet pipe (4) and siphon pipe (5), triple valve (6).Inlet end (7) connects compressed gas source in the triple valve (6), and the outlet side connects pulsometer air inlet pipe (4), the directly logical atmosphere of venting end.Valve open during work, the active siphon pipe pump housing is dipped in the molten metal, molten metal enters the air pressure pump housing automatically, when siphon pipe starts, by valve regulated bar (3) valve-off (2), triple valve (6) is connected compressed gas source, and Compressed Gas enters the pump housing by air inlet pipe (4), and gas pressure is in metal bath surface, molten metal is to siphon pipe (5) filling, after being full of siphon pipe (5), stop inflation, open valve (2) by valve regulated bar (3), triple valve (6) is connected gas vent, slowly bleed off gas in the pulsometer by the exhaust outlet of triple valve (6), under the effect of hydrostatic pressure, siphon pipe (5) beginning transferring metal liquid.Need the temporary transient conveying of interrupting molten metal, but valve-off (2), up to opening valve (2) once more.Stop the conveying of molten metal if desired fully or take out active siphon pipe, can first valve-off (2) and inflation that molten metal in pulsometer (1) and the siphon pipe (5) is got rid of is clean, take out active siphon pipe at this moment.The gas that enters pulsometer is through post-decompression protective gas, as has added sulfur dioxide, the dry air of sulfur hexafluoride, dry carbon dioxide, drying nitrogen etc., and the operating pressure of gas is suitable with the static pressure of molten metal.In order to change flow, need the mechanism of control valve adjusting rod (3), available artificial, also available various automatons are as the valve digitial controller etc.
If only require initiatively to start, and do not require autonomous time-out and the autonomous transfer rate that stops and regulate molten metal, then can adopt simpler active siphonal structure.As the structure of Fig. 1, active siphon pipe is made up of pulsometer (1), valve (2), air inlet pipe (4), triple valve (6) and siphon pipe (5).The active siphonal pump housing is dipped in the molten metal during work, and molten metal enters the pump housing automatically under the static pressure effect.During startup, enter the pump housing by triple valve (6) Compressed Gas by air inlet pipe (4), gas pressure acts on liquid level, and valve (2) is closed, and makes molten metal be full of siphon pipe (5).When the exhaust outlet by triple valve (6) slowly bleeds off gas in the air pressure pump housing, under the effect of hydrostatic pressure, siphon pipe begins transferring metal liquid.When the molten metal liquid level at siphon pipe two flushes or molten metal is drained fully, active siphon pipe quits work.The active siphon pipe of Fig. 1 is applicable to that the molten metal of melting furnace transfers to the situation of holding furnace.
The volume of pulsometer (1) pump housing generally equals the volume of liquid in the siphon pipe.Valve regulated bar (3) can be controlled the unlatching of valve (2), closure and the size of regulating opening, can manually also can be automatic, and siphonal diameter and length etc. can change according to different production requirements.
Make active siphonal material and will use no nickel heat-resisting steel, require heat resisting temperature, prevent to cause the secondary pollution of magnesium liquid at the above non-scale of Celsius temperature 1000 degree.
Description of drawings
The active siphon arrangement schematic diagram of Fig. 1.
The active siphon arrangement schematic diagram of Fig. 2 adj sp.
The specific embodiment
Embodiment one
Molten metal in the melting furnace crucible is transferred in the holding furnace crucible, adopts the active siphon pipe of Fig. 1 form, and melting furnace and holding furnace adopt ladder to install simultaneously.
It is same as the prior art that present embodiment is not stated part.
Embodiment two
The magnesium alloy plate and belt double roller continuous casting, the active siphon pipe of employing Fig. 2 adj sp.The last termination valve digit driver of valve regulated bar (3), the signal that case metal bath surface sensor sends before the double-roller continuous casting machine passes to the valve digit driver, by the unlatching size of valve digit driver control valve (2), stove is left standstill in insulation simultaneously and double-roller continuous casting machine adopts ladder to install.
It is same as the prior art that present embodiment is not stated part.
Embodiment three
The active siphon pipe of Fig. 1 is all adopted in the conveying of magnesium such as magnesium and magnesium alloy ingot, waste recovery liquid, and equipment room adopts staged to install.
It is identical with embodiment one that present embodiment is not stated part.
Product of the present invention is through experiment and actual the use, every functional, safe and reliable, the life-span is long, manufacture method is simple, cheap.
Claims (3)
1, the active siphon pipe of molten metal transfer usefulness in a kind of magnesium and the magnesium alloy smelting mainly is made up of pulsometer (1) and siphon pipe (5) two parts, it is characterized in that the siphon pipe input is the pulsometer (1) that has the adjusting rod valve.
2, active siphon pipe according to claim 1 is characterized in that the adjusting rod on pulsometer (1) the liquid inlet valve (2) can be regulated by manual or automaton.
3, active siphon pipe according to claim 1 is characterized in that making active siphonal material and will use no nickel heat-resisting steel, requires heat resisting temperature at the above non-scale of 1000 degree Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031439233A CN1302876C (en) | 2003-07-29 | 2003-07-29 | Active mode siphon pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031439233A CN1302876C (en) | 2003-07-29 | 2003-07-29 | Active mode siphon pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1480277A CN1480277A (en) | 2004-03-10 |
| CN1302876C true CN1302876C (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031439233A Expired - Fee Related CN1302876C (en) | 2003-07-29 | 2003-07-29 | Active mode siphon pipe |
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| Country | Link |
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| CN (1) | CN1302876C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106541121B (en) * | 2016-12-30 | 2018-01-16 | 北京航空航天大学 | A kind of accurate speed control device of vacuum speed governing casting process |
| CN108526442A (en) * | 2018-07-13 | 2018-09-14 | 河南瑞科智能科技有限公司 | Magnesium alloy founding turns liquid with the method for preventing melt from flowing back and turns liquid device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687061A (en) * | 1992-09-09 | 1994-03-29 | Ube Ind Ltd | Electromagnetic pump type molten metal supplying device |
| JPH06142887A (en) * | 1991-05-24 | 1994-05-24 | Ats Beteiligungs Gmbh | Method and equipment for casting magnesium-made light metal article |
| US5400931A (en) * | 1992-10-23 | 1995-03-28 | Norsk Hydro A.S | Metering unit for liquid magnesium |
| US5914440A (en) * | 1997-03-18 | 1999-06-22 | Noranda Inc. | Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration |
-
2003
- 2003-07-29 CN CNB031439233A patent/CN1302876C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142887A (en) * | 1991-05-24 | 1994-05-24 | Ats Beteiligungs Gmbh | Method and equipment for casting magnesium-made light metal article |
| JPH0687061A (en) * | 1992-09-09 | 1994-03-29 | Ube Ind Ltd | Electromagnetic pump type molten metal supplying device |
| US5400931A (en) * | 1992-10-23 | 1995-03-28 | Norsk Hydro A.S | Metering unit for liquid magnesium |
| US5914440A (en) * | 1997-03-18 | 1999-06-22 | Noranda Inc. | Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1480277A (en) | 2004-03-10 |
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Owner name: FUJIAN HUAMEI NEW TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LI HUALUN Effective date: 20100603 Free format text: FORMER OWNER: HUANG YUHONG |
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Free format text: CORRECT: ADDRESS; FROM: 350013 BUILDING 28, TONGJIANXINCUN RESIDENTIAL QUARTER, GUISHAN, FUZHOU TRAIN STATION, FUJIAN PROVINCE TO: 350013 NO.68, XINQUXINCUN RESIDENTIAL QUARTER, GUISHAN, FUZHOU TRAIN STATION, FUJIAN PROVINCE |
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Effective date of registration: 20100603 Address after: 350013 Fujian province Fuzhou City train station Shan New Village No. 68 Patentee after: Fujian Huamei New Technology Development Co., Ltd. Address before: 350013 Fujian province Fuzhou City train station built Shan village 28 seat Co-patentee before: Huang Yuhong Patentee before: Li Hualun |
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