CN103615888A - Dissolution device of rare earth magnesium alloy - Google Patents
Dissolution device of rare earth magnesium alloy Download PDFInfo
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- CN103615888A CN103615888A CN201310465983.1A CN201310465983A CN103615888A CN 103615888 A CN103615888 A CN 103615888A CN 201310465983 A CN201310465983 A CN 201310465983A CN 103615888 A CN103615888 A CN 103615888A
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- rare earth
- cover plate
- crucible
- material cage
- magnesium
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Abstract
The invention discloses a dissolution device of a rare earth magnesium alloy. The dissolution device of the rare earth magnesium alloy comprises a furnace body, a crucible embedded into the furnace body, a rotating shaft, a material cage and a hopper, wherein a cover plate is arranged in the position of a top opening of the crucible, a feeding port where magnesium alloy is placed to the crucible is formed in the cover plate, the rotation shaft is arranged on the cover plate in a pivoted mode, the rotating shaft extends into the crucible, the lower end portion of the rotating shaft is provided with at least one impeller, a driving mechanism used for driving the rotating shaft to rotate is further installed on the cover plate, the material cage is used for containing rare earth, the material cage is connected to the rotating shaft synchronously and is located above the impeller, a plurality of through holes are formed in the side face of the material cage, the hopper is installed on the cover plate, and a discharging port of the hopper penetrates through the cover plate and is located above an upper opening of the material cage. Compared with the prior art, the dissolution device of the rare earth magnesium alloy has the advantages that the material cage rotating in the circumference direction is utilized, the dissolution rate of the rare earth inside the material cage is improved, feeding can be achieved without the need of taking out the material cage in the process of production, and therefore the continuity and the high efficiency of the casting process are guaranteed.
Description
Technical field
The present invention relates to magnesium alloy processing technique field, be specifically related to a kind of dissolver of magnesium-rare earth.
Background technology
The magnesium alloy that contains rare earth element is called as magnesium-rare earth, and it has the characteristic that intensity is high, heat-resisting and corrosion resistance is stronger.
At present, in the production process of magnesium-rare earth, to utilize the magnesium liquid of high temperature to dissolve casting rod and ingot casting moulding after rare earth, concrete, adopt fixing material cage mounted to enter rare earth, then material cage is immersed in the crucible that high temperature magnesium liquid is housed, under the state of high temperature, rare earth in material cage is dissolved by magnesium liquid, during work, in a side employing stirrer paddle mechanical agitation of material cage.This traditional magnesium-rare earth process units is owing to adopting fixing material cage, make rare earth is only very difficult being dissolved in completely in the middle of magnesium liquid of mode by heating in limited space, therefore, the cycle that the rare earth in material cage dissolves is longer, affects continuity and the high efficiency of whole casting operation.In addition; existing fixed material cage is when reinforced; after crucible middle rare earth magnesium alloy casting completes; need to fix the taking-up of material cage and rejoin rare earth; cause the sealing of whole device to can not get ensureing, cause magnesium liquid polluted in process of production or be oxidized, these pollutants or oxide inclusions are in product; reduced the qualification rate of product, and poor sealing can cause the serious scaling loss of rare earth in crucible conventionally.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to provide a kind of dissolver of magnesium-rare earth, and it can increase the rate of dissolution of material cage middle rare earth, continuity and the high efficiency of assurance casting operation.
For achieving the above object, the present invention adopts following technical scheme:
A dissolver for magnesium-rare earth, comprises,
Body of heater;
Be embedded at the crucible of body of heater inside, the top open part of crucible is provided with cover plate, offers one for add the dog-house of magnesium alloy to crucible inside on this cover plate;
Pivot joint rotating shaft on the cover board, this rotating shaft extend into crucible inside, and its bottom is at least provided with an impeller, is also provided with one for driving the driving mechanism of rotating shaft rotation on cover plate;
For putting the material cage of rare earth, this material cage is synchronous is connected in rotating shaft and is positioned at the top of impeller, and the side of material cage is provided with a plurality of through holes;
Hopper is on the cover board installed, and this hopper feed opening is positioned at the top of material cage upper opening through cover plate.
Driving mechanism is for being installed on the first mixer on cover plate, and rotating shaft is the first shaft of the first mixer.
The dissolver of this magnesium-rare earth comprises two impellers that distribute up and down, and these two impellers are all synchronously connected in rotating shaft and are all positioned at material cage below.
The bottom wall upper surface of crucible is an inclined-plane, and crucible inside is dissolving chamber and the pump chamber that bottom interconnects by a barrier partitions, and the lower part top of bottom wall upper surface of crucible is that dissolving chamber, higher part top are pump chamber; Rotating shaft, impeller, that material cage is all positioned at lysing chamber is indoor.
On cover plate, be fixed with the constant displacement pump that an input extend into pump chamber inside, the side of crucible is provided with a discharge nozzle that extends to body of heater outside, and the medial end of this discharge nozzle is communicated with quantitative delivery side of pump.
One second mixer is installed on cover plate, and the second shaft on this second mixer extend into pump chamber inside, and is synchronously connected with the stirring vane that is positioned at pump chamber on the second shaft.
Part on baffle plate between stirring vane and material cage offers a return port.
One gas tube being communicated with extraneous inert gas feeder is installed on cover plate, and rotating shaft inside is provided with the axial inlet channel being communicated with gas tube, and the bottom of rotating shaft is provided with a plurality of ventholes that are communicated with inlet channel.
On cover plate, be also provided with a detection mouth, this detection mouthful upper cover has a detection lid.
Beneficial effect of the present invention is:
Than prior art, the present invention utilizes the material cage of circular-rotation, has accelerated the rate of dissolution of the inner rare earth of material cage, and in process of production, without take out material cage can realize reinforced, thereby guaranteed continuity and the high efficiency of casting operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Wherein: 10, body of heater; 20, crucible; 21, baffle plate; 22, diapire; 23, dissolve chamber; 24, pump chamber; 25, discharge nozzle; 26, cover plate; 27, dog-house; 28, detect mouth; 30, the first mixer; 31, the first shaft; 32, upper impeller; 33, lower impeller; 40, material cage; 50, the second mixer; 51, the second shaft; 52, stirring vane; 60, constant displacement pump; 70, gas tube; 80, hopper.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the present invention is described further:
As shown in Figure 1, 2, dissolver for a kind of magnesium-rare earth of the present invention, it comprises body of heater 10, crucible 20, the first mixer 30, material cage 40, and wherein, crucible 20 is embedded in body of heater 10, body of heater 10 is for heating crucible 20, the top open part capping of crucible 20 has a cover plate 26, and this cover plate 26 becomes an airtight space by the inside capping of crucible 20, offers a dog-house 27 on cover plate 26, during production, by this dog-house 27, magnesium alloy (as magnesium ingot) is joined to crucible 20 inside.In addition, cover plate 26 is also basic as the installation of the first mixer 30, concrete is, the first mixer 30 body partial fixings are on cover plate 26 tops, the first shaft 31 on it extend into the chamber interior of crucible 20 through cover plate 26, in the bottom of the first shaft 31, be synchronously connected with impeller 32 and lower impeller 33, on this, impeller 32 and lower impeller 33 are in axial (being short transverse) of the first shaft 31 certain distance that mutually staggers, what material cage 40 was synchronous is connected on the first shaft 31 and is positioned at the top of impeller 32, and the side opening of material cage 40 is provided with a plurality of through holes.Start the first mixer 30, can drive impeller 32, lower impeller 33 and material cage 40 to rotate simultaneously.On cover plate 26, be fixed with a hopper 80, the opening that this hopper 80 is larger is positioned at the top (being the outside of crucible 20) of cover plate 26, its less one end as feed opening through cover plate 26 be positioned at material cage 40 upper opening directly over, during production, can directly by hopper 80 places, to material cage 40 inside, add rare earth, without expecting that cage 40 takes out.
Diapire 22 upper surfaces of crucible 20 are an inclined-plane, on cover plate 26, be fixed with a vertical baffle plate 21, the diapire 22 of this baffle plate 21 and crucible 20 at intervals, thus, this baffle plate 21 is divided into by the inner chamber of crucible 20 two chambers that bottom interconnects, wherein, being positioned at the part top that diapire 22 upper surfaces are lower is dissolving chamber 23, being positioned at the part that diapire 22 upper surfaces are higher is that pump chamber 24, the first shafts 31, upper impeller 32, lower impeller 33 and material cage 40 are all positioned at dissolving chamber 23 inside.Cover plate 26 upper surfaces are also provided with a certain amount of pump 60 and the second mixer 50, the input of constant displacement pump 60 extend into pump chamber 24 inside, crucible 20 is positioned on the sidewall of pump chamber 24 1 sides and is provided with a discharge nozzle 25, the outboard end of this discharge nozzle 25 extend into the outside of body of heater 10 through the sidewall of body of heater 10, medial end is communicated with the output of constant displacement pump 60, that is to say, starts constant displacement pump 60, the liquid of pump chamber 24 inside can be pumped into Casting Equipment from discharge nozzle 25, carry out casting rod or ingot casting.The body partial fixing of the second mixer 50 is on cover plate 26, the second shaft 51 on it extend in pump chamber 24, on the second shaft 51, be synchronously connected with the stirring vane 52 that is positioned at pump chamber 24 inside, when opening the first mixer 30, start the second mixer 50, stirring vane 52 can drive the magnesium liquid of pump chamber 24 inside to produce the convective motion that rolls up and down, make the magnesium liquid in crucible 20 there is higher mobility, crucible 20 inside have compared with the magnesium liquid of high fluidity washes away the rare earth in material cage 40, improved the rate of dissolution of rare earth, simultaneously, in the rotation process of material cage 40 self, magnesium liquid is in the peripheral circumferential circulation of material cage 40, further improved the speed that rare earth dissolves.In addition, position on baffle plate 21 between stirring vane 52 and material cage 40 also offers a return port, when stirring vane 52 rotates, return port and baffle plate 21 bottoms can make magnesium liquid dissolve flowing of intersecting between chamber 23 and pump chamber 24 with the gap between diapire 22, increased the mobility of the inner magnesium liquid of crucible 20, magnesium liquid can directly wash away the rare earth in material cage 40 via return port simultaneously.
The present invention is when producing, by hopper 80, to a side of expecting cage 40, add rare earth, when a side of material cage 40 is filled it up with, the first mixer 30 rotates 180 degree, by hopper 80, to the opposite side of material cage 40, fill it up with rare earth again, in production process, by dog-house 27, to crucible 20 inside, add magnesium alloy, open the first mixer 30 and the second mixer 50, the first mixer 30 drives material cage 40 to rotate, magnesium liquid in crucible 20 constantly washes away the rare earth in material cage 40, dissolve, less rare earth particle drops to downwards on impeller 32 and lower impeller 33 from material cage 40, moving upper impeller 32 and the lower impeller 33 of not stall can effectively avoid these less rare earth particles can not drop to the bottom of crucible 20, thereby make to expect that the rare earth particle dropping in cage 40 also can have longer dissolution time, guarantee that rare earth particle is in the inner dissolving fully of crucible 20, in addition, upper impeller 32 and lower impeller 33 can be fully by scum silica frost when stirring, the impurity such as oxide are separated with magnesium liquid, and make produced alloying component more even, segregation is less than 10% of alloy partition relatively.In addition, because the bottom of dissolving chamber 23 is lower than pump chamber 24, even if magnesium liquid is inner, have foreign material, can be sunken to the bottom of dissolving chamber 23 yet, it can not enter into pump chamber 24 inside, guarantees that the magnesium liquid of pump chamber 24 inside has higher quality; Because the proportion of rare earth is greater than the proportion of magnesium liquid, in process of production, the content of rare earth in the layer magnesium liquid of the inner upper, middle and lower of pump chamber 24 can be inconsistent, that is to say, and magnesium liquid uneven components,
Because the second mixer 50 drives the stirring vane 52 that is positioned at pump chamber 24 inside, constantly make the magnesium liquid of pump chamber 24 inside form eddy flow, can effectively solve the problem of above-mentioned magnesium liquid uneven components.In addition, because rare earth is dissolving the interior continuous dissolving of chamber 23, therefore, when rare earth is also in the process in dissolving, the content of rare earth that dissolves chamber 23 inside can be greater than the content of rare earth of pump chamber 24 inside, therefore, upper impeller 32 and lower impeller 33 and stirring vane 52 constantly rotate, drive respectively the magnesium liquid that dissolves chamber 23 and pump chamber 24 inside to flow, magnesium liquid in two chambers is return port and baffle plate 21 bottoms and flowing that gap between diapire 22 intersects from baffle plate 21, content of rare earth in two chambers that make in magnesium liquid tends to balance, after rare earth has fully dissolved, upper impeller 32 and lower impeller 33 and stirring vane 52 continue ceaselessly to stir a period of time, finally make the content of magnesium liquid middle rare earth of inner each positions of crucible 20 identical, reach the object of not segregation.Content of rare earth in magnesium liquid evenly after, open constant displacement pump 60, magnesium liquid is pumped in Casting Equipment, due to without material cage 40 is taken out and can add rare earth, so can guarantee continuity and the high efficiency of casting process.
One gas tube 70 being communicated with extraneous inert gas feeder is also installed on cover plate 26, the inside of the first shaft 31 is provided with an axial inlet channel being communicated with gas tube 70, the bottom of the first shaft 31 is provided with a plurality of ventholes that are communicated with inlet channel, when producing, can in the magnesium liquid of crucible 20 inside, pour inert gas (as argon gas) by gas tube 70, can effectively remove the hydrogen in magnesium liquid, make magnesium alloy materials be unlikely to too crisp.
On cover plate 26, be also provided with a detection mouth 28, this detection mouthful 28 upper covers have a detection lid, and the reinforced use that detects of this detection mouthful 28 conducts generally, is covered this detection mouth 28 with detection cap seal, guarantees the seal of crucible 20.
It should be noted that, the first above-mentioned mixer 30 drives the first shaft 31 on it to rotate, then drive material cage 40 to rotate, mixer 30 is as the driving mechanism that drives material cage 40 to rotate, and certainly, the present invention can be rotating shaft of pivot joint on cover plate 26, material cage 40 is synchronously connected in this rotating shaft, as the driving mechanism that drives rotating shaft to rotate, can be above-mentioned the first mixer 30, can be also to drive rotating shaft to rotate with motor and speed reducer, as long as can make to expect that cage 40 rotates.In addition, the present invention installs impeller 32 and lower impeller 33 in the first shaft 31 bottoms, for preventing that the rare earth particle dropping from material cage 40 from sinking, guarantee the abundant dissolving of rare earth, in order to prevent that rare earth particle from sinking, also an impeller can be only installed on the first shaft 31, certainly, also can, according to needs of production, on the first shaft 31, more than three impellers be installed.
To one skilled in the art, can make other various corresponding changes and deformation according to technical scheme described above and design, and within these all changes and deformation all should belong to the protection domain of the claims in the present invention.
Claims (9)
1. a dissolver for magnesium-rare earth, is characterized in that, comprise,
Body of heater;
Be embedded at the crucible of body of heater inside, the top open part of crucible is provided with cover plate, offers one for add the dog-house of magnesium alloy to crucible inside on this cover plate;
Pivot joint rotating shaft on the cover board, this rotating shaft extend into crucible inside, and its bottom is at least provided with an impeller, is also provided with one for driving the driving mechanism of rotating shaft rotation on cover plate;
For putting the material cage of rare earth, this material cage is synchronous is connected in rotating shaft and is positioned at the top of impeller, and the side of material cage is provided with a plurality of through holes;
Hopper is on the cover board installed, and this hopper feed opening is positioned at the top of material cage upper opening through cover plate.
2. the dissolver of magnesium-rare earth as claimed in claim 1, is characterized in that, driving mechanism is for being installed on the first mixer on cover plate, and rotating shaft is the first shaft of the first mixer.
3. the dissolver of magnesium-rare earth as claimed in claim 1, is characterized in that, the dissolver of this magnesium-rare earth comprises two impellers that distribute up and down, and these two impellers are all synchronously connected in rotating shaft and are all positioned at material cage below.
4. the dissolver of magnesium-rare earth as claimed in claim 1, it is characterized in that, the bottom wall upper surface of crucible is an inclined-plane, crucible inside is dissolving chamber and the pump chamber that bottom interconnects by a barrier partitions, and the lower part top of bottom wall upper surface of crucible is that dissolving chamber, higher part top are pump chamber; Rotating shaft, impeller, that material cage is all positioned at lysing chamber is indoor.
5. the dissolver of magnesium-rare earth as claimed in claim 4, it is characterized in that, on cover plate, be fixed with the constant displacement pump that an input extend into pump chamber inside, the side of crucible is provided with a discharge nozzle that extends to body of heater outside, and the medial end of this discharge nozzle is communicated with quantitative delivery side of pump.
6. the dissolver of magnesium-rare earth as claimed in claim 4, it is characterized in that, one second mixer is installed on cover plate, and the second shaft on this second mixer extend into pump chamber inside, and is synchronously connected with the stirring vane that is positioned at pump chamber on the second shaft.
7. the dissolver of the magnesium-rare earth of stating as claim 6, is characterized in that, the part on baffle plate between stirring vane and material cage offers a return port.
8. the dissolver of magnesium-rare earth as claimed in claim 1, it is characterized in that, one gas tube being communicated with extraneous inert gas feeder is installed on cover plate, rotating shaft inside is provided with the axial inlet channel being communicated with gas tube, and the bottom of rotating shaft is provided with a plurality of ventholes that are communicated with inlet channel.
9. the dissolver of magnesium-rare earth as claimed in claim 1, is characterized in that, is also provided with a detection mouth on cover plate, and this detection mouthful upper cover has a detection lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465983.1A CN103615888B (en) | 2013-09-30 | 2013-09-30 | A kind of dissolver of magnesium-rare earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465983.1A CN103615888B (en) | 2013-09-30 | 2013-09-30 | A kind of dissolver of magnesium-rare earth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615888A true CN103615888A (en) | 2014-03-05 |
| CN103615888B CN103615888B (en) | 2015-09-02 |
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| CN201310465983.1A Expired - Fee Related CN103615888B (en) | 2013-09-30 | 2013-09-30 | A kind of dissolver of magnesium-rare earth |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716781Y (en) * | 2004-04-02 | 2005-08-10 | 福建省泉州鑫艺鸿镁业有限公司 | Magnesium alloy smelting furnace |
| CN101126602A (en) * | 2006-12-22 | 2008-02-20 | 石家庄镁淇科技发展有限公司 | Magnesium alloy melting pool type crucible electrical resistance furnace |
| CN201778090U (en) * | 2010-08-30 | 2011-03-30 | 东莞宜安科技股份有限公司 | Remelting and refining furnace for recovered magnesium alloy materials |
| CN203096150U (en) * | 2013-03-07 | 2013-07-31 | 包头稀土研究院 | Alloying device for smelting rare earth magnesium alloys |
| CN203572211U (en) * | 2013-09-30 | 2014-04-30 | 深圳市亚美联合压铸设备有限公司 | Dissolution device of rare earth-magnesium alloy |
-
2013
- 2013-09-30 CN CN201310465983.1A patent/CN103615888B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716781Y (en) * | 2004-04-02 | 2005-08-10 | 福建省泉州鑫艺鸿镁业有限公司 | Magnesium alloy smelting furnace |
| CN101126602A (en) * | 2006-12-22 | 2008-02-20 | 石家庄镁淇科技发展有限公司 | Magnesium alloy melting pool type crucible electrical resistance furnace |
| CN201778090U (en) * | 2010-08-30 | 2011-03-30 | 东莞宜安科技股份有限公司 | Remelting and refining furnace for recovered magnesium alloy materials |
| CN203096150U (en) * | 2013-03-07 | 2013-07-31 | 包头稀土研究院 | Alloying device for smelting rare earth magnesium alloys |
| CN203572211U (en) * | 2013-09-30 | 2014-04-30 | 深圳市亚美联合压铸设备有限公司 | Dissolution device of rare earth-magnesium alloy |
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| CN103615888B (en) | 2015-09-02 |
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