CN113776334A - Composite crucible for non-ferrous metal smelting - Google Patents
Composite crucible for non-ferrous metal smelting Download PDFInfo
- Publication number
- CN113776334A CN113776334A CN202111102036.7A CN202111102036A CN113776334A CN 113776334 A CN113776334 A CN 113776334A CN 202111102036 A CN202111102036 A CN 202111102036A CN 113776334 A CN113776334 A CN 113776334A
- Authority
- CN
- China
- Prior art keywords
- fixed
- crucible
- shell
- outer ring
- inner core
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 238000003723 Smelting Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000005350 fused silica glass Substances 0.000 claims description 7
- 238000009856 non-ferrous metallurgy Methods 0.000 claims description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 239000007769 metal material Substances 0.000 abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention provides a composite crucible for non-ferrous metal smelting, which comprises a crucible body and a crucible cover, wherein the crucible body comprises an inner shell and an outer shell, the inner shell and the outer shell are both of hollow cylindrical structures, the inner shell is nested and installed in the outer shell, the part of the upper surface of the inner shell, which is higher than the upper surface of the outer shell, is an extension part, the longitudinal height of the extension part is 10-30mm, the crucible cover comprises a fixed outer ring and a fixed inner core, the fixed inner core is sleeved and fixed in the fixed outer ring, a boss extends downwards from the lower surface of the fixed inner core, an installation interval is formed between the outer side surface of the boss and the inner side surface of the fixed outer ring, and the installation interval is matched and clamped with the extension part. The invention has the characteristics of strong oxidation resistance, high strength and long service life, and can improve the purity of the metal solution in the smelting process of the metal material.
Description
Technical Field
The invention belongs to the field of metal smelting, and particularly relates to a composite crucible for non-ferrous metal smelting.
Background
The crucible is usually adopted for smelting in small-batch molten nonferrous metals, the graphite crucible with the excellent characteristics of high heat conductivity, good chemical stability to molten metal and the like is usually adopted in the existing nonferrous metal smelting crucible, but the graphite crucible has relatively low strength and is very easy to break due to external force factors such as impact and the like in the use and carrying processes.
Meanwhile, under the condition that the graphite crucible is heated by direct contact flame injection, the graphite crucible is easy to deteriorate and damage due to oxidation of carbon element at high temperature, so that the graphite crucible is not suitable for working conditions such as direct contact flame injection, and the application scene of the graphite crucible is greatly limited.
Meanwhile, the existing graphite crucible smelts nonferrous metals, and can not remove and purify molten metal in the smelting process, so that the smelting of precious metals with higher requirements on purity can be influenced.
According to the technical problems in the prior art, the invention provides a composite crucible for non-ferrous metal smelting.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the composite crucible for non-ferrous metal smelting, which has the characteristics of strong oxidation resistance, high strength and long service life, and can improve the purity of a metal solution in the smelting process of a metal material.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a composite crucible for non-ferrous metal smelting comprises a crucible body and a crucible cover; the crucible body comprises an inner shell and an outer shell, wherein the inner shell and the outer shell are both of hollow cylindrical structures, the inner shell is nested in the outer shell, the part of the upper surface of the inner shell, which is higher than the upper surface of the outer shell, is an extension part, and the longitudinal height of the extension part is 10-30 mm; the crucible cover comprises a fixed outer ring and a fixed inner core, the fixed inner core is sleeved and fixed in the fixed outer ring, a boss extends downwards from the lower surface of the fixed inner core, and an installation interval is formed between the outer side surface of the boss and the inner side surface of the fixed outer ring; the installation interval is matched and clamped with the extension part.
Preferably, the equal annular array of medial surface of shell and fixed outer lane is provided with the spacing sand grip of a plurality of to the lateral surface of inner shell and fixed inner core all is provided with the spacing recess with spacing sand grip matched with.
Preferably, the cross section of the limiting convex strip is semicircular or trapezoidal.
Preferably, the longitudinal height of the mounting space coincides with the longitudinal height of the extension.
Preferably, the shell and the fixed outer ring are both made of fused quartz; the inner shell is made of graphite, the fixed inner core and the boss are made of foamed ceramic, wherein the foamed ceramic is silicon carbide, aluminum oxide or zirconium oxide, and the pore diameter of the silicon carbide, the aluminum oxide and the zirconium oxide is 15-50 ppi.
The invention has the following positive effects:
the outer shell and the fixed outer ring are made of fused quartz, the fused quartz has the advantages of small thermal expansion coefficient, good thermal stability and good chemical erosion resistance, the inner shell made of graphite materials is coated by the outer shell made of the fused quartz, the inner shell can be protected, brittle damage caused by impact or external force is avoided, meanwhile, the whole crucible can be directly contacted with flame for blowing, the inner shell is not damaged by oxidation, the application working condition environment range of the nonferrous metal smelting crucible is further expanded, and the service life of the whole crucible is greatly prolonged.
Fused silica has close and lower coefficient of thermal expansion with graphite for shell and inner shell can not lead to deformation inconsistent and cause the influence to holistic intensity because of the temperature rise, and shell and inner shell cooperate fixedly through spacing sand grip and spacing recess simultaneously, make holistic intensity obtain very big promotion.
This composite crucible has increased the crucible lid to crucible lid and crucible body pass through extension and installation spaced closely cooperate, can avoid too much calorific loss when smelting, have improved and have smelted efficiency.
Meanwhile, the boss arranged on the lower surface of the fixed inner core is made of foamed ceramic, the foamed ceramic is a filtering material with a three-dimensional net-shaped hole structure, and can be used for filtering, adsorbing and purifying smelted metal during casting, so that the purity of metal solution of the metal material in the smelting process can be greatly improved.
In conclusion, the composite crucible for non-ferrous metal smelting provided by the invention has the characteristics of strong oxidation resistance, high strength and long service life.
Drawings
In order that the present disclosure may be more readily understood, the present disclosure is further described in connection with the following detailed description of the specific embodiments taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic view showing the structure of a composite crucible for nonferrous metal metallurgy according to the present invention;
FIG. 2 is a schematic structural view of a crucible body in the composite crucible for non-ferrous metal metallurgy of the present invention;
FIG. 3 is an exploded view of a composite crucible for nonferrous metallurgy according to the present invention;
FIG. 4 is a sectional view of a composite crucible for nonferrous metallurgy according to the present invention;
FIG. 5 is a sectional view of a crucible body in the composite crucible for nonferrous metal metallurgy according to the present invention;
FIG. 6 is a sectional view of a crucible cover in the composite crucible for nonferrous metallurgy according to the present invention;
reference numerals:
1. a crucible body; 2. a crucible cover; 3. an inner shell; 4. a housing; 5. an extension portion; 6. fixing the outer ring; 7. fixing the inner core; 701. a boss; 8. installing intervals; 9. limiting convex strips; 10. and a limiting groove.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "back-up", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
1-6 show a composite crucible for non-ferrous metal smelting, which comprises a crucible body 1 and a crucible cover 2; the crucible body 1 comprises an inner shell 3 and an outer shell 4, wherein the inner shell 3 and the outer shell 4 are both of hollow cylindrical structures, the inner shell 3 is nested in the outer shell 4, the part of the upper surface of the inner shell 3, which is higher than the upper surface of the outer shell 4, is an extension part 5, and the longitudinal height of the extension part 5 is 10-30 mm; the crucible cover 2 comprises a fixed outer ring 6 and a fixed inner core 7, the fixed inner core 7 is sleeved and fixed in the fixed outer ring 6, a boss 701 extends downwards from the lower surface of the fixed inner core 7, and an installation interval 8 is formed between the outer side surface of the boss 1 and the inner side surface of the fixed outer ring 6; the mounting space 8 is in fit clamping connection with the extension part 5.
Further, the inner side surfaces of the outer shell 4 and the fixed outer ring 6 are provided with a plurality of limiting convex strips 9 in an annular array mode, and the outer side surfaces of the inner shell 3 and the fixed inner core 7 are provided with limiting grooves 10 matched with the limiting convex strips 9.
Furthermore, the cross section of the limiting convex strip 9 is semicircular or trapezoidal.
Further, the longitudinal height of the mounting space 8 coincides with the longitudinal height of the extension 5.
Furthermore, the shell 4 and the fixed outer ring 6 are both made of fused quartz; the inner shell 3 is made of graphite; the stationary core 7 and said boss 701 are made of a ceramic foam, wherein the ceramic foam is silicon carbide, alumina or zirconia, and wherein the pore size of the silicon carbide, alumina and zirconia is 15-50 ppi.
Example 1
The metal material smelted in the embodiment is aluminum, and the foamed ceramic material adopted by the fixed inner core and the boss is aluminum oxide.
In the embodiment, the crucible is not damaged by external force such as impact and the like in the using process, the oxidation phenomenon is avoided in the working condition environment of direct flame injection, and the service life of the crucible is 2 times of that of a pure graphite crucible and reaches 160 days; meanwhile, the content of impurities in molten aluminum after smelting and filtering is greatly reduced.
Example 2
The metal material smelted in the embodiment is silver, and the foamed ceramic material adopted by the fixed inner core and the lug boss is alumina.
In the embodiment, the crucible is not damaged by external force such as impact and the like in the using process, the oxidation phenomenon is avoided in the working condition environment of direct flame injection, and the service life of the crucible is 2.2 times of that of a pure graphite crucible and reaches 178 days; meanwhile, the content of impurities in the molten silver after smelting and filtering is greatly reduced.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions, all of which are within the scope of the claims appended hereto.
Claims (5)
1. A composite crucible for non-ferrous metal smelting is characterized in that: comprises a crucible body (1) and a crucible cover (2);
the crucible body (1) comprises an inner shell (3) and an outer shell (4), wherein the inner shell (3) and the outer shell (4) are both of hollow cylindrical structures, the inner shell (3) is nested in the outer shell (4), the part of the upper surface of the inner shell (3) higher than the upper surface of the outer shell (4) is an extension part (5), and the longitudinal height of the extension part (5) is 10-30 mm;
the crucible cover (2) comprises a fixed outer ring (6) and a fixed inner core (7), the fixed inner core (7) is sleeved and fixed in the fixed outer ring (6), a boss (701) extends downwards from the lower surface of the fixed inner core (7), and an installation interval (8) is formed between the outer side surface of the boss (1) and the inner side surface of the fixed outer ring (6);
the installation interval (8) is matched and clamped with the extension part (5).
2. The composite crucible for nonferrous metallurgy according to claim 1, wherein: the inner side surfaces of the outer shell (4) and the fixed outer ring (6) are provided with a plurality of limiting convex strips (9) in an annular array mode, and the outer side surfaces of the inner shell (3) and the fixed inner core (7) are provided with limiting grooves (10) matched with the limiting convex strips (9).
3. The composite crucible for nonferrous metallurgy according to claim 2, wherein: the cross section of the limiting convex strip (9) is semicircular or trapezoidal.
4. The composite crucible for nonferrous metallurgy according to claim 1, wherein: the longitudinal height of the mounting space (8) coincides with the longitudinal height of the extension (5).
5. A composite crucible for nonferrous metallurgy according to any of claims 1 and 2, wherein: the shell (4) and the fixed outer ring (6) are both made of fused quartz;
the inner shell (3) is made of graphite;
the fixed inner core (7) and the boss (701) are made of foamed ceramic, wherein the foamed ceramic is silicon carbide, aluminum oxide or zirconium oxide, and the pore diameter of the silicon carbide, the aluminum oxide and the zirconium oxide is 15-50 ppi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111102036.7A CN113776334A (en) | 2021-09-18 | 2021-09-18 | Composite crucible for non-ferrous metal smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111102036.7A CN113776334A (en) | 2021-09-18 | 2021-09-18 | Composite crucible for non-ferrous metal smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113776334A true CN113776334A (en) | 2021-12-10 |
Family
ID=78852391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111102036.7A Pending CN113776334A (en) | 2021-09-18 | 2021-09-18 | Composite crucible for non-ferrous metal smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113776334A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10141554A1 (en) * | 2000-09-04 | 2002-05-16 | Solar Gmbh Deutsche | Melt crucible, used for melting non-ferrous metals, especially silicon, comprises outer blocking crucible and inner quartz crucible |
| CN101666580A (en) * | 2009-09-24 | 2010-03-10 | 山西太钢不锈钢股份有限公司 | Crucible for vacuum induction melting and manufacturing method thereof |
| KR20100003368U (en) * | 2008-09-18 | 2010-03-26 | 장암에너지 주식회사 | The preparing apparatus for polysilicon |
| CN102818454A (en) * | 2012-08-10 | 2012-12-12 | 同济大学 | Composite crucible with advantages of energy saving, low cost and capability of being alloyed |
| CN203980889U (en) * | 2014-06-27 | 2014-12-03 | 江西豪安能源科技有限公司 | A kind of Novel graphite crucible |
| KR101916891B1 (en) * | 2017-07-12 | 2018-11-08 | 정인기 | Ceramic filter box for molten metal |
| JP2018204820A (en) * | 2017-05-31 | 2018-12-27 | 株式会社広築 | Graphite crucible for non-ferrous metal melting |
| CN111187928A (en) * | 2020-02-10 | 2020-05-22 | 中国科学院金属研究所 | Smelting method of metal material |
| CN212006726U (en) * | 2020-04-09 | 2020-11-24 | 青岛育豪微电子设备有限公司 | Vertical dissolving furnace |
| CN212902614U (en) * | 2020-09-04 | 2021-04-06 | 汨罗市福缘新材料有限公司 | Side wall reinforced graphite crucible |
| CN213925123U (en) * | 2020-11-18 | 2021-08-10 | 阳光能源（青海）有限公司 | Quartz crucible for manufacturing monocrystalline silicon |
-
2021
- 2021-09-18 CN CN202111102036.7A patent/CN113776334A/en active Pending
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|---|---|---|---|---|
| DE10141554A1 (en) * | 2000-09-04 | 2002-05-16 | Solar Gmbh Deutsche | Melt crucible, used for melting non-ferrous metals, especially silicon, comprises outer blocking crucible and inner quartz crucible |
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