CN1436865A - Magnesium alloy waste regenerator - Google Patents

Magnesium alloy waste regenerator Download PDF

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Publication number
CN1436865A
CN1436865A CN 03119127 CN03119127A CN1436865A CN 1436865 A CN1436865 A CN 1436865A CN 03119127 CN03119127 CN 03119127 CN 03119127 A CN03119127 A CN 03119127A CN 1436865 A CN1436865 A CN 1436865A
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CN
China
Prior art keywords
magnesium alloy
agitator
refining
alloy waste
coupling wheel
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CN 03119127
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Chinese (zh)
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CN1207410C (en
Inventor
李培杰
王晓强
曹福洋
刘群
曾大本
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清华大学
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Priority to CN 03119127 priority Critical patent/CN1207410C/en
Publication of CN1436865A publication Critical patent/CN1436865A/en
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Publication of CN1207410C publication Critical patent/CN1207410C/en

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Abstract

The magnesium alloy waste regenerator consists of furnace body, feeding and discharge system and refining system. The apparatus has a stirrer comprising stirring rod with spiral blades and stirring head and these is a through hole in the stirring rod and the stirring head and connected to the refining gas passage via fixing flange. There are dynamic sealing structure in the upper part of the stirring rod and partitioned bin feeder comprising partitioned bin, rotary opened upper cover and withdrawable partition boards. The present invention can realize mechanical composite stirring of gas during refining and isolate magnesium alloy waste in smelting and refining from outside, and these results in less oxidation and combustion, saving in flux and protective gas, improved refining effect, regeneration quality and efficiency, low cost and less environmental pollution.

Description

A kind of magnesium alloy waste material reclaim equiment

Technical field

The present invention relates to a kind of magnesium alloy smelting and magnesium alloy waste material reclaim equiment, belong to the material processing plant technical field.

Background technology

Magnesium alloy is as structural metallic materials the lightest in the practical application, have specific tenacity height, specific rigidity height, damping capacity is good, machinability is good, good casting property, than series of advantages such as plastics are more easy to be recycled, along with the breakthrough of 20 th century later processing technologies and the decline significantly of price, the application at aspects such as aerospace, automobile, household electrical appliances, communication products enlarges rapidly; Magnesium alloy pressure-casting product particularly, develop particularly swift and violent, the speed increment with annual about 15%.

At present typical magnesium alloy pressure-casting technology can produce the process residue about 50%, and these waste material body surface areas are smaller, and contain a large amount of oxide compounds, pore, can not resemble direct remelting the aluminium alloy scrap, must could reuse through regeneration.And magnesium alloy chemical character is active, and the easier oxidizing fire of especially little lump waste materials is so must adopt special equipment and technology.

Hydro company of world-renowned magnesium alloy manufacturing enterprise develops a kind of reclaim equiment and technology that is suitable for reclaiming in enormous quantities magnesium alloy waste material, referring to " US Patent:5,167,700,1992 ".This equipment adopts the multicell structure, is medium heating magnesium alloy waste material with flux, and each locellus is linked to each other by the aperture of band filtering net, and liquid magnesium alloy progressively purifies in each locellus, and magnesium alloy waste material regenerated specialized factory adopts this method more.People such as Qiu Shanmao have invented the equipment for vacuum refining of antiflaming magnesium alloy, see " Ri Bente Xu: the flat 10-280062 of special Open; 1998. ", adopt this device can effectively remove inclusion in the magnesium alloy, but because AZ, the AM of widespread use at present series magnesium alloy burning-point is lower than fusing point, so this method is not promoted as yet.External some enterprise develops the magnesium alloy regeneration outfit based on flux-refining method or gas refinement method, but exist in varying degrees cost an arm and a leg, problem such as apparatus adaptability difference, can not satisfy the magnesium alloy pressure-casting scrap materials of enterprises regenerated requirement that China shows up prominently.

At present domestic indivedual magnesium alloy material factory adopts pit furnace, gas furnace or resistance furnace to carry out waste refusion regeneration; adopt flux to protect and refining; magnesium alloy fused mass is exposed in the air; oxidation and burning very easily take place; not only waste flux; work under bad environment, and refining effect is poor, and the materials recycling ingot is difficult to reach the ASTM standard.Consider the cost and the security of waste material transportation, and the energy consumption during remelting, regeneration is the most rational selection to magnesium alloy pressure-casting factory waste material in the our factory.

Summary of the invention

The objective of the invention is at the deficiencies in the prior art and defective; provide a kind of magnesium alloy waste material that is applicable to that magnesium alloy pressure-casting enterprise produces to carry out regenerated equipment in the factory; this equipment can make magnesium alloy waste material all isolate with external environment in fusing and refining process; not only be difficult for taking place oxidation and burning; and can save flux and shielding gas; reduce the regeneration cost of magnesium alloy waste material, the regeneration quality is good, efficient is high, and meets environmental protection requirement.

The present invention is achieved through the following technical solutions: a kind of magnesium alloy waste material reclaim equiment, mainly form by body of heater, input and output material system and rectification systems, described body of heater mainly comprises furnace shell, heat-resistant insulation material, heating member, crucible, bell, temperature measuring equipment and electric control gear, and described input and output material system comprises feeding device and pump of constant delivery type; Described rectification systems comprises agitator, agitator motor, agitator lifting gear, refining gas passage and shielding gas passage, it is characterized in that: described agitator is made up of the agitator arm and the stirring-head of band screw-blade, be provided with through hole in agitator arm and stirring-head, this through hole is connected with the refining gas passage by mounting flange; Coupling wheel is equipped with on top at agitator arm, and this is fixed with the rotation flange above gear, and is provided with sealing member between rotation flange and coupling wheel; The agitator lifting gear links to each other with agitator by mounting flange, rotation flange and coupling wheel; The sleeve that is respectively equipped with seal cartridge and matches with agitator arm below described coupling wheel, this sleeve is fixed together with the stirrer stand that is fixed on the bell.

Coupling wheel of the present invention and rotation flange are sliding matching structure with mounting flange all.

Of the present invention another be characterised in that and adopt the compartment feed way, described feeding device by compartment, can rotate the loam cake of unlatching and the dividing plate that can extract out constitutes.

The present invention compared with prior art; have the following advantages and the high-lighting effect: the present invention adopts movable sealing structure; magnesium alloy waste material is all isolated with external environment in fusing and refining process; not only be difficult for taking place oxidation and burning; and can save flux and shielding gas; reduce the regeneration cost of magnesium alloy waste material, help environmental protection.Be provided with the through hole that is connected with the refining gas passage in the agitator, can realize the mechanical gas recombination agitating function in the refining process, can significantly strengthen refining effect, improve the regeneration quality and the regeneration efficiency of magnesium alloy waste material magnesium alloy fused mass.Adopt the reinforced mode of compartment, not only alleviated the oxidation of magnesium alloy fused mass in the reinforced process, and effectively utilized the heat of bell, realize the preheating of waste material.Because the agitator long period of soaking corroded in magnesium alloy fused mass easily, the present invention adopts non-refining agitator in period to break away from the scheme of liquid level, has improved its work-ing life, has also alleviated its pollution to magnesium alloy fused mass simultaneously.

Description of drawings

Fig. 1 is the overall structure synoptic diagram of magnesium alloy waste material reclaim equiment provided by the invention.

Fig. 2 is the structural representation of rectification systems.

Fig. 3 is for being the structural representation of agitator.

Fig. 4 is the structural representation of feeding device.

Among the figure: 1. leakage warning device 2. furnace shells 3. heat-resistant insulation materials 4. crucibles 5. calandrias 6. bells 7. feeding devices 8. protective gas passages 9. stirring motors 10. agitator lifting devices 11. refining gas passages 12. stirrer stands 13. temperature thermocouples 14. constant displacement pumps 15. liquid-level controllers 16. agitators 17. temperature-control heat couple 18. electric control gears 19. feeding chamber loam cakes 20. compartments 21. feeding chamber dividing plates 22. puddlers 23. agitator helical blades 24. agitator through holes 25. stirring-heads 26. coupling wheels 27. idler gears 28. promote gear 29. mounting flanges 30. and rotate flange 31. seals 32. sealing shrouds 33. sleeves

Embodiment

Further specify concrete structure of the present invention and embodiment below in conjunction with accompanying drawing.

This equipment is made up of body of heater, input and output material system, rectification systems and warning four parts.So-called body of heater comprises furnace shell 2, heating member 5, crucible 4, bell 6, temperature measuring equipment and electric control gear 18; Fill heat-resistant insulation material 3 between furnace shell 2 and heating member 5, crucible 4 is installed in the body of heater center.Temperature measuring equipment comprises the temperature thermocouple 13 that inserts in the crucible and inserts heating member 5 temperature-control heat couple 17 on every side that heating member 5 can adopt resistance wire or globars, preferably uses globars.

Input and output material system among the present invention is made up of feeding device 7, pump of constant delivery type 14.Feeding device 7 is installed on the bell 6 with pump of constant delivery type 14.Feeding device 7 adopts the reinforced mode (as shown in Figure 4) of compartments, promptly feeding device 7 by compartment 20, can rotate the loam cake 19 of unlatching and the dividing plate 21 that can extract out is formed.When reinforced, at first loam cake 19 is opened, waste material is added in the compartment, utilize the heat preheated one-section time of bell, the loam cake 19 that closes is extracted dividing plate 21 out, and waste material is added in the crucible, dividing plate is inserted to reset then.Discharge system adopts the commercialization pump of constant delivery type, can select spiral pump, electromagnetic pump or air lift pump.

Rectification systems among the present invention is made up of agitator 16, agitator motor 9, agitator lifting gear 10, refining gas passage 11 and shielding gas passage 8.Described agitator is made up of the agitator arm 22 and the stirring-head 25 of band screw-blade 23, is provided with central through hole 24 in agitator arm and stirring-head, and this through hole is connected with refining gas passage 11; On the top of agitator arm coupling wheel 26 is housed, this is fixed with above gear and rotates flange 30, and is provided with sealing member 31 between rotation flange and coupling wheel; Agitator lifting gear 10 links to each other with agitator 16 by mounting flange 29, rotation flange 30 and coupling wheel 26; The sleeve 33 that is respectively equipped with seal cartridge 32 and matches with agitator arm below described coupling wheel 26, this sleeve is fixed together with the stirrer stand that is fixed on the bell.

Agitator motor 9 is connected with agitator 16 by neutral gear 27, coupling wheel 26, and coupling wheel 26 is fixed on agitator 16 upper ends, and like this, motor rotates and can drive the agitator rotation.Be provided with sealing member 31 in the middle of rotating flange 30 and coupling wheel 26, the sealing part can adopt heat resistance fiber.Refining gas passage 11 links to each other by mounting flange 29 with agitator 16 intermediary through holes, and they do not rotate with agitator.This structure has realized descending in working order the isolation of the inside and outside atmosphere of equipment.Agitator 16 hangs on the agitator lifting gear 10 by coupling wheel 26, rotation flange 30, mounting flange 29, and lifting gear 10 is realized by gear 28, rack structure.Agitator 16 is by being welded with the agitator arm 22 of spiral agitating vane 23 and middle perforate and the stirring-head 25 of middle perforate.This kind structure guarantees that flux, gas fully contact with melt in the refining process.Shielding gas passage 8 is located on the bell.

Described warning is made up of leakage warning device 1, liquid-level controller 15.Leakage warning device 1 passes furnace shell and is installed on burner hearth bottom, and liquid-level controller 15 is installed on the bell 6.

During the operation of this equipment, for fritter or contain the more magnesium alloy waste material of impurity, can adopt flux, gas recombination refining to carry out the regenerated mode.Magnesium alloy waste material adds in the crucible by feeding device 7; under the protection of insulating covering agent, melt; after melt reaches refining temperature; add refining flux; agitator 16 is dropped on the support 12, start agitator motor 9, and feed refining gas by gas refinement passage 11; refining certain hour under mechanical gas recombination agitation condition breaks away from molten metal by agitator lifting gear 10 with agitator then.Remove the slag on melt sidewall, bottom and surface, leave standstill certain hour, adopt pump of constant delivery type 14 dischargings.For bulk cleaning magnesium alloy waste material, can take does not have the flux regeneration, and different with above-mentioned flux, gas recombination regeneration is that waste material is heat fused under the gas shield condition, does not add refining flux in the refining process.

Claims (5)

1. magnesium alloy waste material reclaim equiment, mainly form by body of heater, input and output material system and rectification systems, described body of heater mainly comprises furnace shell (2), heat-resistant insulation material (3), heating member (5), crucible (4), bell (6), temperature measuring equipment and electric control gear, and described input and output material system comprises feeding device (7) and pump of constant delivery type (14); Described rectification systems comprises agitator (16), agitator motor (9), agitator lifting gear (10), refining gas passage (11) and shielding gas passage (8), it is characterized in that: described agitator is made up of the agitator arm (22) and the stirring-head (25) of band screw-blade, be provided with through hole (24) in agitator arm and stirring-head, this through hole is connected with refining gas passage (11) by mounting flange (29); On the top of agitator arm (22) coupling wheel (26) is housed, this is fixed with above gear and rotates flange (30), and is provided with sealing member (31) between rotation flange and coupling wheel; Agitator lifting gear (10) links to each other with agitator (16) by mounting flange (29), rotation flange (30) and coupling wheel (26); The sleeve (33) that is respectively equipped with seal cartridge (32) and matches with agitator arm below described coupling wheel (26), this sleeve is fixed together with the stirrer stand (12) that is fixed on the bell.
2. according to the described magnesium alloy waste material reclaim equiment of claim 1, it is characterized in that: described coupling wheel (26) and rotation flange (30) are sliding matching structure with mounting flange (29) all.
3. according to claim 1 or 2 described magnesium alloy waste material reclaim equiments, it is characterized in that: described feeding device (7) by compartment (20), can rotate the loam cake (19) of unlatching and the dividing plate (21) that can extract out constitutes.
4. according to the described magnesium alloy waste material reclaim equiment of claim 3, it is characterized in that: described sealing member (32) adopts heat resistance fiber.
5. according to the described magnesium alloy waste material reclaim equiment of claim 1, it is characterized in that: described heating member (5) adopts globars.
CN 03119127 2003-03-14 2003-03-14 Magnesium alloy waste regenerator CN1207410C (en)

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CN 03119127 CN1207410C (en) 2003-03-14 2003-03-14 Magnesium alloy waste regenerator

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Application Number Priority Date Filing Date Title
CN 03119127 CN1207410C (en) 2003-03-14 2003-03-14 Magnesium alloy waste regenerator

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CN1207410C CN1207410C (en) 2005-06-22

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314820C (en) * 2005-08-18 2007-05-09 沈阳工业大学 Magnesium alloy melt forced-circulation smelting method
CN102284700A (en) * 2011-07-27 2011-12-21 金堆城钼业股份有限公司 Method and device for preparing continuous gradient functional material
CN102620575A (en) * 2012-04-16 2012-08-01 上海交通大学 Device for preparing magnesium alloy semi-solid slurry by gas stirring
CN102653826A (en) * 2011-03-04 2012-09-05 苏州汉扬精密电子有限公司 Device and method used for recycling magnesium alloy turning scraps
CN103540750A (en) * 2013-10-12 2014-01-29 青海三工镁业有限公司 Method and device for constant-temperature dynamic recovery on waste produced by magnesium and magnesium alloy processing
CN104390457A (en) * 2014-11-21 2015-03-04 浙江宇辰工业炉有限公司 Metal homogenizing melting furnace
CN105018762A (en) * 2015-07-29 2015-11-04 龙桂山 Constant-temperature smelting device
CN106679419A (en) * 2017-01-25 2017-05-17 苏州振湖电炉有限公司 Frequency conversion induction aluminum furnace
CN107267785A (en) * 2017-06-24 2017-10-20 南京明轮有色金属有限公司 A kind of solvent-free, full waste material magnesium alloy processing technology
CN109114978A (en) * 2018-09-26 2019-01-01 嘉善德诺轴承有限公司 A kind of bearing alloy material smelting furnace
CN109323587A (en) * 2018-09-26 2019-02-12 嘉善德诺轴承有限公司 A kind of smelting copper alloy device for oilless bearing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788229B (en) * 2010-01-13 2012-05-02 福建工程学院 Multifunctional smelting furnace

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314820C (en) * 2005-08-18 2007-05-09 沈阳工业大学 Magnesium alloy melt forced-circulation smelting method
CN102653826A (en) * 2011-03-04 2012-09-05 苏州汉扬精密电子有限公司 Device and method used for recycling magnesium alloy turning scraps
CN102284700A (en) * 2011-07-27 2011-12-21 金堆城钼业股份有限公司 Method and device for preparing continuous gradient functional material
CN102284700B (en) * 2011-07-27 2012-12-19 金堆城钼业股份有限公司 Method and device for preparing continuous gradient functional material
CN102620575A (en) * 2012-04-16 2012-08-01 上海交通大学 Device for preparing magnesium alloy semi-solid slurry by gas stirring
CN103540750A (en) * 2013-10-12 2014-01-29 青海三工镁业有限公司 Method and device for constant-temperature dynamic recovery on waste produced by magnesium and magnesium alloy processing
CN104390457A (en) * 2014-11-21 2015-03-04 浙江宇辰工业炉有限公司 Metal homogenizing melting furnace
CN105018762A (en) * 2015-07-29 2015-11-04 龙桂山 Constant-temperature smelting device
CN106679419A (en) * 2017-01-25 2017-05-17 苏州振湖电炉有限公司 Frequency conversion induction aluminum furnace
CN107267785A (en) * 2017-06-24 2017-10-20 南京明轮有色金属有限公司 A kind of solvent-free, full waste material magnesium alloy processing technology
CN109114978A (en) * 2018-09-26 2019-01-01 嘉善德诺轴承有限公司 A kind of bearing alloy material smelting furnace
CN109323587A (en) * 2018-09-26 2019-02-12 嘉善德诺轴承有限公司 A kind of smelting copper alloy device for oilless bearing

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