CN107664419B - A kind of metal molten furnace with depassing unit - Google Patents
A kind of metal molten furnace with depassing unit Download PDFInfo
- Publication number
- CN107664419B CN107664419B CN201710722403.0A CN201710722403A CN107664419B CN 107664419 B CN107664419 B CN 107664419B CN 201710722403 A CN201710722403 A CN 201710722403A CN 107664419 B CN107664419 B CN 107664419B
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- CN
- China
- Prior art keywords
- sealant
- stage portion
- layer
- insulation layer
- fire brick
- Prior art date
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
- F27B14/12—Covers therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0843—Lining or casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
Abstract
The present invention provides a kind of metal molten furnace with depassing unit, it has cylindric furnace structure, the furnace body includes outermost shell, is located at the intracorporal fire brick layer of shell and innermost crucible, there is vacuum insulation chamber between the shell and the fire brick layer, the inner surface of the fire brick layer has multiple protrusions, the multiple protrusion is in close contact with the crucible, and the first heating element is provided in the fire brick layer, and first heating element is spiral shape electric heating wire；For each of the multiple protrusion with independent second electrical heating elements, the control circuit of second electrical heating elements and first electrical heating elements is mutually indepedent.
Description
Technical field
The present invention relates to metal alloy raw material manufacture fields, and in particular to a kind of metal molten with depassing unit
Furnace.
Background technique
For existing conventional, electric-resistance melting furnace during smelting metal melt, the air dissolved inside molten metal is all logical
Cross what two kinds of degasification modes carried out:
1, stirring degassing machine is stirred degasification with graphite rotator agitation compressed inert inside melt.It exists
Following two points are insufficient:
One, degasification is stirred using inert gas, uses inert gas for medium in the process, a use can be generated
The expense of inert gas；
Two, getter shape is larger, and degasification must be shifted onto designated position by each degasification, after degasification, again machine
Device pushes, and otherwise can not carry out melting subsequent job.Since degasification flow chart is comparatively cumbersome, once smelting furnace is completed
Melting starts after carrying out casting feeding work, will not generally carry out being again stirring for degasification to molten metal.In this way in casting process
In be difficult to guarantee that its molten aluminium alloy is consistent in the ratio for reaching last gas contained by it once for a long time, and then influence
Produce alloy product quality.
2, degasification is carried out by the way of metal flux chemistry, there are following deficiencies:
One, chemical flux is generally used carbon trichloride as primary raw material, using it after touching melt pyrolytic
The characteristic for releasing chlorine is reacted with the hydrogen being dissolved in inside aluminium using the chlorine of release and becomes hydrogen chloride gas band
It walks, the either chlorine or hydrogen chloride gas generated in the process is all the toxic gas being harmful to the human body, to operative employee
The respiratory tract of people can generate pessimal stimulation damage health, serious to corrode respiratory tract.It is likely to result in occupational disease for a long time.
Two, flux carries out degasification by the way of chemistry, inevitably understands some slag inclusions in the whole process and other compositions are residual
It stays inside molten aluminium alloy, it is good often to accomplish that gas removes, but have again and gone inside other impurity to molten aluminum, cause
Degasification operation produces side effect, influences the quality for producing aluminium alloy castings.
Three, when chemical flux is added to inside molten aluminium alloy, it is necessary to be immersed in it in molten aluminium alloy completely
Portion, therefore flux must be perfectly dry, if not drying flux completely before being put into molten aluminium alloy, will result in aluminium alloy
Melt is blown up by the vapor of volume expansion unexpected in flux to outside stove, causes major accident, therefore this operation has very
Big security risk.
Four, flux generally uses and aluminium alloy ratio 1%-1.5%, base price is 6-12 member/KG, long-term
It is many expense in use process.
In addition, easily being generated to exhaust pipe by being connected to exhaust pipe in the side of furnace body since furnace body temperature is very high
The metal aluminum steam of high temperature damage and subsequent evaporation is thrown into exhaust pipe, causes unnecessary blocking.
Summary of the invention
Based on solving the above problems, the present invention provides a kind of metal molten furnace with depassing unit comprising furnace body
And bell, the furnace body include outermost shell, be located at the intracorporal fire brick layer of shell and innermost crucible, the shell with
There is fiber insulation layer between the fire brick layer, be provided with heating element in the fire brick layer；The opening of the furnace body
With first step portion, second step portion and third stage portion, each stage portion respectively includes a horizontal part and one vertical
Portion, and there are multiple inert gas input holes in the horizontal part in second step portion, have in the horizontal part of third stage portion multiple
Except stomata；
The bell from top to bottom successively includes insulating layer and telescopic first sealant, the second sealant and heat-insulated
Layer, the insulating layer, the first sealant, the second sealant and thermal insulation layer size successively successively decrease, and second sealant has
There is the third accommodating cavity for making the thermal insulation layer retraction, first sealant, which has, makes the second of the second sealant retraction to hold
Chamber is set, the insulating layer has the first accommodating cavity for making the first sealant retraction；And it is the insulating layer of the bell, first close
Sealing, the second sealant and thermal insulation layer form the 4th stage portion, the 5th stage portion and the 6th step in the state of fully extended
Portion, each stage portion respectively include a horizontal part and a vertical component effect, the 4th stage portion, the 5th stage portion and the 6th
Shape of the shape in rank portion respectively with the first step portion, second step portion and third stage portion matches；
The multiple inert gas input hole is ganged up mutually by first annular pipeline, and is connected to inertia by input pipe
Gas source；It is the multiple to be ganged up mutually except stomata by the second annulus line, and vacuum degassing equipment is connected to by efferent duct.
According to an embodiment of the invention, the thickness of the vertical component effect in the first step portion, second step portion and third stage portion
Degree successively successively decreases.
According to an embodiment of the invention, the side of the thermal insulation layer and the shell, fiber insulation layer and fire brick layer phase
Contact.
According to an embodiment of the invention, the material of first sealant and the second sealant is elaxtic seal.
Advantages of the present invention is as follows:
(1) being used cooperatively for the stage portion of furnace body and bell is utilized, damage of the high temperature to pipeline is prevented, can also prevent aluminium
Steam enters pipeline；
(2) under non-heated condition, first retraction thermal insulation layer and the second sealant are vacuumized, and then retraction first is close again
Sealing carries out the injection of inert gas, to control the purity of aluminium alloy.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the metal molten furnace with depassing unit of the invention；
Fig. 2 is the top view of furnace body opening；
Fig. 3 is the cross-sectional view of furnace body；
Fig. 4 is the cross-sectional view of bell.
Specific embodiment
Referring to Fig. 1-4, the metal molten furnace with depassing unit of the invention comprising furnace 1 and bell 2, the furnace body 1
Including outermost shell 11, be located at the intracorporal fire brick layer 13 of shell and innermost crucible 14, the shell 11 with it is described resistance to
There is fiber insulation layer 12 between firebrick layer 13, be provided with heating element in the fire brick layer 13；The opening of the furnace body 1
With first step portion, second step portion and third stage portion, each stage portion respectively includes a horizontal part (W1-W3) and one
A vertical component effect (T1-T3), and there are multiple inert gas input holes 17 in the horizontal part W2 in second step portion, in third stage portion
Horizontal part W3 have it is multiple remove stomata 15；
The bell 2 from top to bottom successively includes insulating layer 21 and telescopic first sealant 22, the second sealant
23 and thermal insulation layer 24, the insulating layer 21, the first sealant 22, the second sealant 23 and thermal insulation layer 24 size successively successively decrease,
And second sealant 23 has makes the third accommodating cavity 27 of 24 retraction of thermal insulation layer, first sealant 22 has and makes
Second accommodating cavity 26 of 23 retraction of the second sealant, the insulating layer 21, which has, makes the first of 22 retraction of the first sealant to hold
Set chamber 25；And the insulating layer 21 of the bell 2, the first sealant 22, the second sealant 23 and thermal insulation layer 24 are being stretched completely
In the state of out, forms the 4th stage portion, the 5th stage portion and the 6th stage portion, each stage portion and respectively include a horizontal part
With a vertical component effect, the shape of the 4th stage portion, the 5th stage portion and the 6th stage portion respectively with the first step portion,
The shape of second step portion and third stage portion matches；First sealant 22, the second sealant 23 and thermal insulation layer 24
Flexible to be controlled by an external motor, which can realize first sealant 22, the respectively by control circuit
The single control of two sealants 23 and thermal insulation layer 24.
The multiple inert gas input hole 17 is ganged up mutually by first annular pipeline 18, and is connected by input pipe 6
To inert gas source 5；It is the multiple to be ganged up mutually except stomata 15 by the second annulus line 16, and be connected to by efferent duct 4
Vacuum degassing equipment 3.
According to an embodiment of the invention, vertical component effect (the T1- in the first step portion, second step portion and third stage portion
T3 thickness) successively successively decreases.The side of the thermal insulation layer 24 connects with the shell 11, fiber insulation layer 12 and fire brick layer 13
Touching.The material of first sealant 22 and the second sealant 23 is elaxtic seal.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (4)
1. a kind of metal molten furnace with depassing unit comprising furnace body and bell, the furnace body include outermost shell,
Positioned at the intracorporal fire brick layer of shell and innermost crucible, there is fiber insulation layer between the shell and the fire brick layer,
Heating element is provided in the fire brick layer；The opening of the furnace body has first step portion, second step portion and third
Stage portion, each stage portion respectively include a horizontal part and a vertical component effect, and in the horizontal part in second step portion with more
A inert gas input hole has multiple except stomata in the horizontal part of third stage portion；
The bell from top to bottom successively include insulating layer and telescopic first sealant, the second sealant and thermal insulation layer,
The insulating layer, the first sealant, the second sealant and thermal insulation layer size successively successively decrease, and second sealant has and makes
The third accommodating cavity of the thermal insulation layer retraction, first sealant, which has, makes the second of the second sealant retraction to accommodate
Chamber, the insulating layer have the first accommodating cavity for making the first sealant retraction；And the insulating layer of the bell, the first sealing
Layer, the second sealant and thermal insulation layer form the 4th stage portion, the 5th stage portion and the 6th step in the state of fully extended
Portion, each stage portion respectively include a horizontal part and a vertical component effect, the 4th stage portion, the 5th stage portion and the 6th
Shape of the shape in rank portion respectively with the first step portion, second step portion and third stage portion matches；
The multiple inert gas input hole is ganged up mutually by first annular pipeline, and is connected to inert gas by input pipe
Source；It is the multiple to be ganged up mutually except stomata by the second annulus line, and vacuum degassing equipment is connected to by efferent duct.
2. the metal molten furnace according to claim 1 with depassing unit, it is characterised in that: the first step portion,
The thickness of the vertical component effect of second step portion and third stage portion successively successively decreases.
3. according to claim 1 or 2 described in any item metal molten furnaces with depassing unit, it is characterised in that: it is described every
The side of thermosphere is in contact with the shell, fiber insulation layer and fire brick layer.
4. the metal molten furnace according to claim 1 with depassing unit, it is characterised in that: first sealant and
The material of second sealant is elaxtic seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722403.0A CN107664419B (en) | 2017-08-22 | 2017-08-22 | A kind of metal molten furnace with depassing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722403.0A CN107664419B (en) | 2017-08-22 | 2017-08-22 | A kind of metal molten furnace with depassing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107664419A CN107664419A (en) | 2018-02-06 |
| CN107664419B true CN107664419B (en) | 2019-08-09 |
Family
ID=61097236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710722403.0A Active CN107664419B (en) | 2017-08-22 | 2017-08-22 | A kind of metal molten furnace with depassing unit |
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| Country | Link |
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| CN (1) | CN107664419B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201642Y (en) * | 1994-11-04 | 1995-06-21 | 重庆长江科技开发公司 | Resistance flowing furnace |
| CN1438337A (en) * | 2003-03-11 | 2003-08-27 | 朱兴发 | Apparatus for producing low-carbon ferromanganese iron using manganese-rich slay |
| CN1443248A (en) * | 2000-07-21 | 2003-09-17 | 北德意志阿菲内利股份公司 | Method and device for reducing oxygen content of copper melt |
| CN202263918U (en) * | 2011-11-02 | 2012-06-06 | 阜新市万达铸业有限公司 | Low-pressure casting heat preserving furnace |
| CN103994658A (en) * | 2014-05-15 | 2014-08-20 | 宁海易龙新能源有限公司 | Biomass fuel aluminum melting furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100592533B1 (en) * | 2002-01-07 | 2006-06-23 | 조순형 | Method and apparatus for the continuous production of foamed metals |
-
2017
- 2017-08-22 CN CN201710722403.0A patent/CN107664419B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201642Y (en) * | 1994-11-04 | 1995-06-21 | 重庆长江科技开发公司 | Resistance flowing furnace |
| CN1443248A (en) * | 2000-07-21 | 2003-09-17 | 北德意志阿菲内利股份公司 | Method and device for reducing oxygen content of copper melt |
| CN1438337A (en) * | 2003-03-11 | 2003-08-27 | 朱兴发 | Apparatus for producing low-carbon ferromanganese iron using manganese-rich slay |
| CN202263918U (en) * | 2011-11-02 | 2012-06-06 | 阜新市万达铸业有限公司 | Low-pressure casting heat preserving furnace |
| CN103994658A (en) * | 2014-05-15 | 2014-08-20 | 宁海易龙新能源有限公司 | Biomass fuel aluminum melting furnace |
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| Publication number | Publication date |
|---|---|
| CN107664419A (en) | 2018-02-06 |
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