CN107321953A - A kind of magnesium alloy gas furnace - Google Patents
A kind of magnesium alloy gas furnace Download PDFInfo
- Publication number
- CN107321953A CN107321953A CN201710740761.4A CN201710740761A CN107321953A CN 107321953 A CN107321953 A CN 107321953A CN 201710740761 A CN201710740761 A CN 201710740761A CN 107321953 A CN107321953 A CN 107321953A
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- CN
- China
- Prior art keywords
- magnesium alloy
- furnace
- crucible
- gas
- heater
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The present invention relates to a kind of magnesium alloy gas furnace, predominantly magnesium alloy cold chamber die casting and extrusion casint etc. provides the magnesium alloy fused mass of high-quality.The present invention develops a kind of furnace binding, realizes by fuel of combustion gas to melt magnesium alloy.The design mainly includes the high-temperature gas part flow arrangement produced after a kind of body of heater of new structure, crucible, heat exchanger, burner, bottom of furnace body floater guide block and burning.The invention no longer carrys out melting magnesium alloy using conventional electric heating as thermal source, and using more cheap combustion gas as the energy, heat exchanger enters limit by row recovery to the waste heat of high-temperature flue gas, energy-saving effect is notable, use cost is less expensive, is that magnesium alloy smelting die casting etc. provides more choices.
Description
Technical field
The invention of this reality is related to a kind of magnesium alloy gas furnace, and predominantly magnesium alloy cold chamber die casting and extrusion casint etc. provides Gao Pin
The magnesium alloy body of matter, belongs to magnesium alloy smelting field.
Background technology
Presently commercially available magnesium alloy cold chamber die casting stove is mainly electric furnace, and wherein most is resistance furnace, is partly electromagnetic induction
Stove.And China's some areas electric power resource nervous and cost relatively is costly, and natural gas resource comparatively enriches simultaneously
It is readily available, using natural gas relative to electricity consumption, lower cost needed for units of heat is tested through theoretical calculation and actual use
Card, melts the magnesium alloy of identical weight, and electric cost is approximately twice with gas cost.Above-mentioned electric furnace accounts for magnesium-alloy smelting furnace city
The present situation and power cost of leading position are high and present situation of some areas shortage of electric power causes some areas to develop magnesium alloy
Die Casting is limited.Need to develop more economical magnesium-alloy smelting furnace come the need for meeting different regions.
The content of the invention
To overcome above-mentioned limitation and making full use of the cheap advantage of gas cost to reduce production cost, the invention reside in
A kind of magnesium alloy gas furnace is developed, realizes by fuel of combustion gas to melt magnesium alloy, and high efficiente callback fume afterheat, is magnesium alloy
Die casting low cost provides the magnesium alloy fused mass of high-quality.The design includes a kind of body of heater of new structure（4）, crucible（1）, heat exchange
Device（6）, burn nozzle（3）, bottom of furnace body floater guide block（7）With high-temperature gas part flow arrangement after burning（5）.
Burn nozzle（3）And heat exchanger（6）It is distributed in body of heater rear end, crucible（1）Installed in the furnace chamber of inboard wall of furnace body formation（2）
In, high-temperature gas part flow arrangement after burning（5）It is distributed in burning nozzle（3）Front end.Heat exchanger（6）To be U-shaped, it is divided into inside and outside two chambers,
Inner chamber is chimney, furnace chamber（2）The middle hot mixing gas that produces after fully burning is to crucible（1）It is discharged to greatly through chimney after heat release
In gas, heat exchanger（6）Exocoel has heat exchanger inlet of cold air（8）With exchanger heat air outlet slit（9）Each one, blower fan is by cold sky
Gas is from heat exchanger inlet of cold air（8）It is pumped into heat exchanger（6）Exocoel, cold air is in exocoel to exchanger heat air outlet slit（9）
Flowing, is preheated in the process, subsequently into burning nozzle（3）With fuel in certain proportion mixed combustion；Burn nozzle（3）Mouth is slightly against stove
Internal wall, it is to avoid thermal-flame is directly against crucible（1）Heat and scaling loss crucible（1）；Body of heater（4）Inwall and crucible（1）Outer wall
Between and bottom of furnace body floater guide block（7）A chamber is formed, the chamber is around crucible（1）Wall one week, the chamber burns nozzle（3）Front end is sufficiently large, can
Ensure to burn nozzle（3）The mixed gas of front end is fully burnt, and the high-temperature gas mixture body after burning is around crucible（1）Flowing adds to crucible
Heat, until through changing burner（6）Inner chamber is discharged into air after heat exchange cooling；In addition, burning nozzle（3）The bottom of furnace body of front end is provided with one
High-temperature gas part flow arrangement after burning（5）, the part flow arrangement is fabricated by by high-temperature refractory, and the bottom of device has rotary shaft
With being connected outside body of heater, there is handle outside, the angle of part flow arrangement can be adjusted by rotary handle, so as to realize to fully combustion
High-temperature gas after burning is shunted, and changes heating intensity of the high-temperature gas to crucible different parts, so as to meet different melt
Change task and insulation mission requirements.
The The effect of invention is no longer to carry out melting magnesium alloy by thermal source of electric heating, and using more cheap combustion gas as the energy,
Use cost is less expensive, is also provided more choices for magnesium alloy smelting.Furnace binding is designed as combustion gas and fully burnt offer
Enough combustion spaces, the gas of discharge does not pollute the environment, with the higher thermal efficiency, in the condition of identical melting rate
Under, furnace binding is compacter compared with resistance furnace, it is only necessary to which a set of combustion system can just realize different fusing and insulation taskbars
Step-less adjustment under part, and large and medium-sized resistance furnace needs at least two jacket heating systems and control system.
Brief description of the drawings：
Accompanying drawing shows a kind of principle diagram design of example of the present invention, wherein：
Fig. 1 is the top view of furnace binding；
Fig. 2 is furnace binding sectional view；
Fig. 3 is furnace binding partial sectional view.
In figure：1-crucible；2-furnace chamber；3-burn nozzle；4-body of heater；High-temperature gas part flow arrangement after 5-burning；6-change
Hot device；7-bottom of furnace body floater guide block；8-heat exchanger inlet of cold air；9-exchanger heat air outlet slit.
Embodiment：
Realize the fusing to magnesium alloy in crucible and insulation for the heat energy produced by using fuel gas buring, the present invention it is main by
Following a few part compositions：The body of heater with heat insulation function being made up of metal shell and refractory material（4）, it is positioned in burner hearth and uses
In magnesium alloy smelting and the magnesium alloy copple of insulation（1）, it is installed in body of heater（4）Rear end is used to carry out burning with compressed air
Preheating and the heat exchanger of simultaneous emission function（6）, the burning nozzle (3) for being used to install burner of body of heater rear end middle and lower part is arranged on,
High-temperature gas part flow arrangement (5) after burning for adjusting the flow direction of high-temperature gas before burner and distribution flow, and in body of heater
Wall and crucible（1）Outer wall and bottom of furnace body floater guide block（7）One be collectively forming fully burns around crucible (1) for combustion gas,
The gas produced burn to crucible (1) fully heat transfer and the furnace chamber (2) of smooth outflow.
In the course of the work, compression cold air is pumped into the heat exchanger cold air of heat exchanger in Fig. 1 (6) in the presence of blower fan
Import (8), and along heat exchanger (6) exocoel to exchanger heat air outlet slit (9) flow, then in the presence of combustion gas element with
Combustion gas enters the front end of burner being placed in burning nozzle (3) according to certain combusted proportion and fully burnt, because burning needs necessarily
Combustion space, so needing a larger space in front end of burner, in Proper Design, whole body of heater uses irregular structure, adopts
With ladder structure of right angle, the sidewall of the furnace body close to burner side is trapezoidal hypotenuse, sees the high temperature mixing produced after Fig. 1, burning
Gas, high-temperature gas part flow arrangement (5) is divided into two strand different with direction of two-way flow after front end of burner is burned, according to earthenware
In crucible (1) different fusing tasks and insulation task come to crucible different parts carry out varying strength heating, high-temperature gas from
Burner comes out and planted after shunting in furnace chamber (2) around the flowing of crucible (1) outer wall, passes through the side such as radiation and convection current in the process
Formula is heated to crucible (1), is finally discharged into after the heat exchange cooling of heat exchanger (6) inner chamber in air.
Claims (5)
1. a kind of magnesium alloy gas furnace, be a kind of heat produced using fuel gas buring as thermal source magnesium-alloy smelting furnace, its feature exists
In including body of heater（4）, heat exchanger（6）, burn nozzle（3）, crucible（1）With high-temperature gas part flow arrangement after burning（5）Composition.
2. magnesium alloy gas furnace according to claim 1, it is characterised in that heat exchanger（6）For " u "-shaped, by inside and outside two chamber
Composition, inner chamber is chimney, and exocoel is preheated air passage.
3. magnesium alloy gas furnace according to claim 1, it is characterised in that body of heater（4）Bottom and crucible（1）Between provided with resistance
Keep off the bottom of furnace body floater guide block that hot gas directly enters crucible opposite side from crucible bottom（7）.
4. magnesium alloy gas furnace according to claim 1, it is characterised in that body of heater（4）Inwall, bottom of furnace body floater guide block（7）With
Crucible（1）Outer wall and its flange formation closed furnace chamber of half（2）, the furnace chamber（2）Around crucible（1）Surrounding, close to burning nozzle（3）Place
Cavity volume is big compared with other parts, body of heater（4）It is made up of metal shell and insulation material.
5. magnesium alloy gas furnace according to claim 1, it is characterised in that high-temperature gas part flow arrangement after burning（5）, its
Installed in burning nozzle（3）The body of heater of front end（4）Bottom, can be rotated according to temperature control requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740761.4A CN107321953A (en) | 2017-08-25 | 2017-08-25 | A kind of magnesium alloy gas furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740761.4A CN107321953A (en) | 2017-08-25 | 2017-08-25 | A kind of magnesium alloy gas furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107321953A true CN107321953A (en) | 2017-11-07 |
Family
ID=60228459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710740761.4A Pending CN107321953A (en) | 2017-08-25 | 2017-08-25 | A kind of magnesium alloy gas furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107321953A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030884A (en) * | 1996-07-15 | 1998-02-03 | Nippon Rutsubo Kk | Crucible furnace type aluminum melting equipment |
| JP2005009803A (en) * | 2003-06-20 | 2005-01-13 | Furness Kakoki Kk | Metal handling device |
| CN101586911A (en) * | 2009-06-17 | 2009-11-25 | 宁波市镇海海德工业炉有限公司 | Nonferrous metal smelting furnace |
| CN201421249Y (en) * | 2009-06-17 | 2010-03-10 | 宁波市镇海海德工业炉有限公司 | Non-ferrous metal smelting furnace |
| CN201497346U (en) * | 2009-09-03 | 2010-06-02 | 荆门航特有色金属铸造有限公司 | Energy-saving gas crucible aluminum-melting heat preserving furnace |
| CN203454747U (en) * | 2013-06-21 | 2014-02-26 | 成都赛德立热能科技有限公司 | Crucible aluminum melting furnace |
| CN205352106U (en) * | 2016-01-14 | 2016-06-29 | 山西金星镁业有限公司 | Magnesium metal heat accumulation formula smelting furnace waste heat utilization equipment |
| CN205352064U (en) * | 2016-01-14 | 2016-06-29 | 山西金星镁业有限公司 | Segmentation controlling means of magnesium alloy melting furnace furnace temperature |
-
2017
- 2017-08-25 CN CN201710740761.4A patent/CN107321953A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030884A (en) * | 1996-07-15 | 1998-02-03 | Nippon Rutsubo Kk | Crucible furnace type aluminum melting equipment |
| JP2005009803A (en) * | 2003-06-20 | 2005-01-13 | Furness Kakoki Kk | Metal handling device |
| CN101586911A (en) * | 2009-06-17 | 2009-11-25 | 宁波市镇海海德工业炉有限公司 | Nonferrous metal smelting furnace |
| CN201421249Y (en) * | 2009-06-17 | 2010-03-10 | 宁波市镇海海德工业炉有限公司 | Non-ferrous metal smelting furnace |
| CN201497346U (en) * | 2009-09-03 | 2010-06-02 | 荆门航特有色金属铸造有限公司 | Energy-saving gas crucible aluminum-melting heat preserving furnace |
| CN203454747U (en) * | 2013-06-21 | 2014-02-26 | 成都赛德立热能科技有限公司 | Crucible aluminum melting furnace |
| CN205352106U (en) * | 2016-01-14 | 2016-06-29 | 山西金星镁业有限公司 | Magnesium metal heat accumulation formula smelting furnace waste heat utilization equipment |
| CN205352064U (en) * | 2016-01-14 | 2016-06-29 | 山西金星镁业有限公司 | Segmentation controlling means of magnesium alloy melting furnace furnace temperature |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171107 |
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| WD01 | Invention patent application deemed withdrawn after publication |