CN114526600B - Device and method for recycling copper from polished copper ingot furnace dust - Google Patents
Device and method for recycling copper from polished copper ingot furnace dust Download PDFInfo
- Publication number
- CN114526600B CN114526600B CN202111637362.8A CN202111637362A CN114526600B CN 114526600 B CN114526600 B CN 114526600B CN 202111637362 A CN202111637362 A CN 202111637362A CN 114526600 B CN114526600 B CN 114526600B
- Authority
- CN
- China
- Prior art keywords
- copper
- inner container
- dust
- shell
- ash
- 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.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 104
- 239000010949 copper Substances 0.000 title claims abstract description 104
- 239000000428 dust Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004064 recycling Methods 0.000 title claims abstract description 6
- 239000000571 coke Substances 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- 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
- F27B14/0806—Charging or discharging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
- F27D3/1554—Equipment for removing or retaining slag for removing the slag from the surface of the melt
-
- 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
- F27B14/0806—Charging or discharging devices
- F27B2014/0818—Discharging
-
- 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
- F27B2014/0837—Cooling arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a device and a method for recycling copper from polished copper ingot furnace dust, comprising a supporting frame, a shell arranged on the supporting frame, an inner container arranged in the middle of the shell and a coke layer arranged between the inner container and the shell, wherein the bottom of the inner container is provided with a mounting hole, a copper leakage base is arranged on the mounting hole, the bottom of the copper leakage base extends out of the shell, at least one copper leakage hole is arranged on the copper leakage base, a cooler is arranged below the copper leakage base, the upper end of the shell is provided with a dust collecting channel communicated with the coke layer, the lower end of the shell is provided with at least one compressed air pipe communicated with the coke layer, and the compressed air pipe is connected with a blower. The invention effectively reduces the copper content in the furnace dust, recovers the copper in the furnace dust, reduces the smelting loss in the production of polished copper ingots, and is economical and environment-friendly.
Description
Technical Field
The invention relates to a device and a method for recycling copper from polished copper ingot furnace dust.
Background
The invention is mainly used for recovering copper from polished copper ingot furnace dust. In the production process of the polished copper ingot, the melt for casting has extremely strict requirements, so that a large amount of ash slag is fished out by each furnace before casting, and more copper particles are wrapped in the ash slag fished out in the later stage, so that the smelting loss in the production of the polished copper ingot is high.
In order to reduce smelting loss, the ash fishing temperature and the ash beating time are often increased in production (copper particles in an ash layer in a furnace fall into a melt in the furnace), but in the later stage, the furnace ash is fished out completely, and copper liquid is still carried into a slag box along with the fishing float. Reducing the copper content in the furnace dust becomes a key for reducing the production cost of polished copper ingots.
In the traditional smelting process at present, the furnace ash of the smelting furnace can be kept in a certain amount in the production process, so that the oxidation loss of the melt is reduced, and the situation that part of the melt is fished out along with the furnace ash due to excessive ash fishing is avoided. However, in the production process of the polished copper ingot, because of extremely high purity requirements on the melt (hard particles of slag inclusion in furnace ash are prevented from entering products to cause poor polishing in the casting process), each furnace ash needs to be thoroughly fished out, so that the copper content in the furnace ash for producing the polished copper ingot is high, and the production cost is greatly increased.
Disclosure of Invention
The invention aims to provide a device for recovering copper from polished copper ingot furnace dust, which reduces the copper content in polished copper ingot fishing-out furnace dust and reduces smelting loss.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a retrieve device of copper in follow polishing copper ingot furnace dust, includes the support frame, sets up the casing on the support frame, sets up the inner bag in the middle of the casing to and set up the coke layer between inner bag and the casing, the inner bag bottom is equipped with the mounting hole, be equipped with the copper leakage base on the mounting hole, the bottom of copper leakage base stretches out from the casing, be equipped with at least one copper leakage hole on the copper leakage base that says, copper leakage base below is equipped with the cooler, the casing upper end is equipped with the receipts ash passageway with the coke layer intercommunication, the casing lower extreme is equipped with at least one compressed air pipe with the coke layer intercommunication, compressed air pipe connects the air-blower.
Preferably, the number of the copper leakage holes is six, and the copper leakage holes are annularly arranged at equal intervals along the circumferential direction of the copper leakage base.
Preferably, the copper leakage base is made of ceramic.
Preferably, the bottom and the outer side of the coke layer are both provided with heat insulation layers, and the heat insulation layers are heat insulation cotton.
Preferably, the ash collecting channel is provided with an ash collecting valve.
Preferably, a control valve is arranged on the compressed air pipe.
Preferably, two compressed air pipes are symmetrically arranged on the shell.
Preferably, a liner cover plate is arranged at the top of the liner.
After the technical scheme is adopted, 1/3 of the residual furnace dust in the furnace is completely fished into the inner container, compressed air is fed into the coke layer, so that the red heat of the inner container is guaranteed to be 12-15 minutes, copper liquid in the ash layer is fully collected and flows into a cooler arranged at the lower part of the red heat inner container, the solidified copper liquid in the cooler is taken out after the red heat of the inner container is kept, the compressed air is stopped to be fed into the coke layer, a dust collection valve is closed, the heat preservation is carried out, the furnace dust is poured into an ash box after the copper ash in the inner container is cooled, a cover plate of the inner container is covered, the oxidation loss of the inner container is reduced, the copper content in the furnace dust is effectively reduced, copper in the furnace dust is recovered, the smelting loss in the production of polished copper ingot is reduced, and the furnace dust collector is economical and environment-friendly.
It is another object of the present invention to provide a method for recovering copper from polished copper ingot furnace dust, comprising the steps of:
firstly, using a blower to send compressed air into a coke layer in a device 10 minutes before ash fishing, so that the coke heats the liner to red heat;
Step two, smelting operation is still carried out according to the procedure of polishing copper ingot production;
step three, when the ash is fished, fishing out 2/3 copper ash from the upper layer of loose furnace ash according to normal operation, and fishing out the rest 1/3 copper ash into the inner container which is heated to a red-hot state in the device;
fourthly, after the rest 1/3 of furnace dust in the furnace is completely fished into the device, continuously feeding compressed air into the coke layer, ensuring that the inner container is red hot for 12-15 minutes, enabling copper liquid in the dust layer to have sufficient time to be collected, and flowing into a cooler arranged at the lower part of the red hot inner container;
Step five, keeping the red heating time of the inner container for 15 minutes, taking out the solidified copper liquid in the cooler, stopping delivering compressed air to the coke layer, closing a dust collection valve, and preserving heat;
Step six, if the time in the step five reaches 15 minutes, still copper liquid flows into the cooler, the heating temperature is properly increased, and the heating time is prolonged for 5 minutes;
And seventhly, pouring the furnace dust into the dust box after the copper dust in the liner is cooled, and covering the liner cover plate.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a top view of the present invention.
Reference numerals:
1. A support frame; 2. a housing; 3. an inner container; 4. a coke layer; 5. a mounting hole; 6. a copper leakage base; 7. copper leakage holes; 8. a cooler; 9. an ash collecting channel; 10. a compressed air tube; 11. a blower; 12. thermal insulation cotton; 13. an ash collecting valve; 14. a control valve; 15. and a liner cover plate.
Detailed Description
In order to more clearly illustrate the general inventive concept, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the invention.
Example 1
The utility model provides a retrieve device of copper in polishing copper ingot furnace dust, as shown in fig. 1 and 2, includes support frame 1, sets up casing 2 on support frame 1, sets up inner bag 3 in the middle of casing 2 to and set up coke layer 4 between inner bag 3 and the casing 2, the inner bag 3 bottom is equipped with mounting hole 5, be equipped with copper leakage base 6 on the mounting hole 5, copper leakage base 6's bottom stretches out from casing 2, copper leakage base 6 is last to be equipped with at least one copper leakage hole 7, copper leakage base 6 below is equipped with cooler 8, casing 2 upper end is equipped with the receipts ash passageway 9 with coke layer 4 intercommunication, casing 2 lower extreme is equipped with at least one compressed air tube 10 with coke layer 4 intercommunication, compressed air tube 10 connects air-blower 11.
In order to increase the copper leakage speed, six copper leakage holes 7 are formed and are annularly arranged at equal intervals along the circumferential direction of the copper leakage base 6. In practical application, the number can be increased or decreased according to the requirement so as to meet the working requirement. The copper leakage base 6 is made of ceramic. The ceramic is fired at high temperature, does not fade, does not absorb water, does not deform, is easy to clean and resistant to high temperature, does not release chemical substances at high temperature, and is healthier to use.
In order to reduce the temperature loss of the coke layer 4, the bottom and the outer side of the coke layer 4 are both provided with heat insulation layers, and the heat insulation layers are heat insulation cotton 12.
In order to facilitate the control of the ash collection, the ash collection channel 9 is provided with an ash collection valve 13. The ash collection is convenient to control according to the requirements, and the pollution is reduced.
In order to control the air flow rate, a control valve 14 is arranged on the compressed air pipe 10. The two compressed air pipes 10 are symmetrically arranged on the shell 2.
Example two
Another object of the invention is to provide a method for recovering copper from polished copper ingot furnace dust, comprising the following steps:
Firstly, using an air blower 11 to send compressed air into a coke layer 4 in the device 10 minutes before ash is fished, so that the coke heats an inner container 3 to red heat;
Step two, smelting operation is still carried out according to the procedure of polishing copper ingot production;
step three, when the ash is fished, 2/3 copper ash is fished out according to normal operation for the upper layer of loose furnace ash, and the rest 1/3 copper ash is fished into the inner container 3 which is heated to a red-hot state in the device;
Step four, after the rest 1/3 of furnace dust in the furnace is completely fished into the device, continuously feeding compressed air into the coke layer 4, ensuring that the inner container 3 is red hot for 12-15 minutes, enabling copper liquid in the dust layer to have sufficient time to be collected, and flowing into a cooler 8 arranged at the lower part of the red hot inner container 3;
Step five, taking out the solidified copper liquid in the cooler 8 after the inner container 3 is red and heated for 15 minutes, stopping supplying compressed air to the coke layer 4, closing a dust collection valve, and preserving heat;
step six, if the time in the step five reaches 15 minutes, still copper liquid flows into the cooler 8, the heating temperature is properly increased, and the heating time is prolonged for 5 minutes;
and seventhly, pouring the furnace dust into a dust box after the copper dust in the inner container 3 is cooled, and covering the cover plate of the inner container 3.
In addition to the above preferred embodiments, the present invention has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the invention, which is defined in the appended claims.
Claims (4)
1. The method for recycling copper from polished copper ingot furnace dust is characterized by comprising a device for recycling copper from polished copper ingot furnace dust, the device comprises a support frame, a shell arranged on the support frame, an inner container arranged in the middle of the shell, and a coke layer arranged between the inner container and the shell, wherein the bottom of the inner container is provided with a mounting hole, a copper leakage base is arranged on the mounting hole, the bottom of the copper leakage base extends out of the shell, at least one copper leakage hole is arranged on the copper leakage base, a cooler is arranged below the copper leakage base, an ash collecting channel communicated with the coke layer is arranged at the upper end of the shell, at least one compressed air pipe communicated with the coke layer is arranged at the lower end of the shell, the compressed air pipe is connected with a blower, a dust collecting valve is arranged on the ash collecting channel, a control valve is arranged on the compressed air pipe, two compressed air pipes are symmetrically arranged on the shell, and a liner cover plate is arranged at the top of the inner container;
The method for recovering copper from polished copper ingot furnace dust comprises the following steps:
firstly, using a blower to send compressed air into a coke layer in a device 10 minutes before ash fishing, so that the coke heats the liner to red heat;
Step two, smelting operation is still carried out according to the procedure of polishing copper ingot production;
Step three, when the ash is fished, fishing out 2/3 copper ash from the upper layer of loose furnace ash according to normal operation, and fishing out the rest 1/3 copper ash into the inner container which is heated to a red-hot state in the device;
fourthly, after all the remaining 1/3 furnace dust in the furnace is fished into the device, continuously feeding compressed air into the coke layer, ensuring that the inner container is red hot for 12-15 minutes, enabling copper liquid in the dust layer to have sufficient time to be collected, and flowing into a cooler arranged at the lower part of the red hot inner container;
Step five, keeping the red heating time of the inner container for 15 minutes, taking out the solidified copper liquid in the cooler, stopping delivering compressed air to the coke layer, closing a dust collection valve, and preserving heat;
Step six, if the time in the step five reaches 15 minutes, still copper liquid flows into the cooler, the heating temperature is properly increased, and the heating time is prolonged for 5 minutes;
And seventhly, pouring the furnace dust into the dust box after the copper dust in the liner is cooled, and covering the liner cover plate.
2. A method of recovering copper from polished copper ingot furnace dust as defined in claim 1, wherein: six copper leakage holes are formed and are annularly arranged at equal intervals along the circumference of the copper leakage base.
3. A method of recovering copper from polished copper ingot furnace dust as defined in claim 2, wherein: the copper leakage base is made of ceramic.
4. A method of recovering copper from polished copper ingot furnace dust as defined in claim 1, wherein: the bottom and the outer side of the coke layer are both provided with heat preservation layers, and the heat preservation layers are heat preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637362.8A CN114526600B (en) | 2021-12-29 | 2021-12-29 | Device and method for recycling copper from polished copper ingot furnace dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637362.8A CN114526600B (en) | 2021-12-29 | 2021-12-29 | Device and method for recycling copper from polished copper ingot furnace dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114526600A CN114526600A (en) | 2022-05-24 |
| CN114526600B true CN114526600B (en) | 2024-06-21 |
Family
ID=81621729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111637362.8A Active CN114526600B (en) | 2021-12-29 | 2021-12-29 | Device and method for recycling copper from polished copper ingot furnace dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114526600B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217324231U (en) * | 2021-12-29 | 2022-08-30 | 浙江科宇金属材料有限公司 | Retrieve device of copper in follow polishing copper ingot furnace dust |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338605A (en) * | 2000-08-18 | 2002-03-06 | 胡金高 | Apparatus for recovering and smelting non-ferrous metals |
| CN2650043Y (en) * | 2003-09-18 | 2004-10-20 | 刘森麟 | Blast-free coke melting-holding furnace |
| CN1259437C (en) * | 2004-10-21 | 2006-06-14 | 陈克孝 | Smelting technique for blowing fine coal into blast furnace in stead of part of coke |
| KR100717244B1 (en) * | 2005-11-24 | 2007-05-15 | 유나이티드피엠(주) | Melting furnace equipped with gas injection means for impurities elimination |
| JP5935528B2 (en) * | 2012-06-12 | 2016-06-15 | 住友金属鉱山株式会社 | Method for recovering copper from copper smelting slag |
| CN104596243B (en) * | 2014-05-04 | 2017-02-15 | 上海康成铜业集团有限公司 | Melting furnace, device and method for casting and producing high-performance Cu-Ag alloy |
| CN106017089A (en) * | 2016-06-22 | 2016-10-12 | 成都伊普视科技有限公司 | Coke-fired crucible furnace with sufficient coke burning function |
| CN111156820A (en) * | 2020-01-20 | 2020-05-15 | 中国恩菲工程技术有限公司 | Antimony concentrate vacuum smelting device |
| CN111850308B (en) * | 2020-07-22 | 2021-04-16 | 湖北大江环保科技股份有限公司 | Method for treating copper smoke dust by using oxygen-enriched side-blown reduction smelting furnace |
-
2021
- 2021-12-29 CN CN202111637362.8A patent/CN114526600B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217324231U (en) * | 2021-12-29 | 2022-08-30 | 浙江科宇金属材料有限公司 | Retrieve device of copper in follow polishing copper ingot furnace dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114526600A (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207294855U (en) | The metal recovery electricity melting plant that a kind of continuous feed is slagged tap | |
| CN217324231U (en) | Retrieve device of copper in follow polishing copper ingot furnace dust | |
| CN114526600B (en) | Device and method for recycling copper from polished copper ingot furnace dust | |
| CN206204391U (en) | A kind of energy-efficient melting converter | |
| CN202763029U (en) | Transferring casting ladle of piston molten aluminum | |
| CN202316145U (en) | Air-cooled type cyclone dust collector | |
| CN103539125B (en) | Medium melting is connected the method for purifying polycrystalline silicon with preliminary directional freeze | |
| CN206083799U (en) | Novel amorphous foundry alloy spindle continuous casting system | |
| CN210547943U (en) | Waste heat recycling device of steelmaking continuous casting system | |
| CN207746703U (en) | A kind of band exhaust-gas treatment gear box casing production line | |
| CN206959615U (en) | A kind of furnace cupola energy saver | |
| CN201772763U (en) | High-temperature slag waste heat reclaiming system | |
| CN203024568U (en) | Secondary combustion heat storage hot air furnace and cupola furnace with same | |
| CN206160721U (en) | A closed copper melting furnace for continuous casting copper -aluminum composite material | |
| CN205897841U (en) | Metallurgical smelting furnace of copper scrap | |
| CN110273032A (en) | A kind of steel slag Exposure degree electrification technique and system | |
| CN218539317U (en) | Casting type directional solidification device for industrial silicon | |
| CN203568855U (en) | Device for purifying polycrystalline silicon via linkage of medium smelting and primary directional solidification | |
| CN208795029U (en) | It casts Boiler Used Coldly but water recovery device | |
| CN202216528U (en) | Vacuum smelting furnace for heavy-weight nickel alloy | |
| CN205414305U (en) | Quick calcination regeneration system of energy -saving intercooling formula casting sand | |
| CN216155907U (en) | Vacuum feeding device for introducing VOD furnace | |
| CN220951191U (en) | Active carbon preparation facilities | |
| CN209442931U (en) | A kind of hydrogasification furnace conducive to gas solid separation and cooling | |
| CN109097830A (en) | Polycrystalline silicon ingot casting energy saving furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |