CN110285671B - Aluminum scrap smelting system - Google Patents
Aluminum scrap smelting system Download PDFInfo
- Publication number
- CN110285671B CN110285671B CN201910484996.0A CN201910484996A CN110285671B CN 110285671 B CN110285671 B CN 110285671B CN 201910484996 A CN201910484996 A CN 201910484996A CN 110285671 B CN110285671 B CN 110285671B
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- tower
- smelting
- aluminum
- furnace
- nozzle
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- 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
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- 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
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- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- 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
- F27B2014/002—Smelting process, e.g. sequences to melt a specific material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides an aluminum scrap smelting system which comprises an aluminum ingot smelting furnace and an aluminum scrap smelting furnace, wherein the aluminum ingot smelting furnace comprises a first smelting chamber, a tower part, a smelting burner and a tower side discharge flue, the aluminum scrap smelting furnace comprises a second smelting chamber and a nozzle, the tower part is positioned at the upper end of the smelting chamber and is communicated with the tower part, the smelting burner faces the inner side of the smelting chamber, one end of the tower side discharge flue is communicated with the tower part, the other end of the tower side discharge flue is communicated with the nozzle, the nozzle is arranged at the upper end of the second smelting chamber, and the nozzle is opposite to the inner side of the second smelting chamber. The aluminum scrap melting furnace has a simple structure, the high-temperature furnace gas generated by the aluminum ingot melting furnace is used for heating the aluminum scraps in the aluminum scrap melting furnace, the energy consumption is greatly reduced, the design is more reasonable, and the aluminum scrap melting furnace has good market application value.
Description
Technical Field
The invention relates to the technical field of aluminum alloy casting, in particular to an aluminum scrap smelting system.
Background
A large amount of aluminum scraps are generated in the manufacturing and production process of automobile aluminum alloy parts, the aluminum scraps are usually treated by smelting and recycling, a natural gas burner is adopted for heating in the conventional smelting and recycling process at present, and the maximum cost for producing the aluminum alloy hub is the smelting cost at present, so the cost for recycling the aluminum scraps in the existing technology is high, and the energy waste is serious.
Disclosure of Invention
In view of this, the invention provides an aluminum scrap smelting system with low energy consumption and more environmental protection.
The technical scheme of the invention is realized as follows: the invention provides an aluminum scrap smelting system which comprises an aluminum ingot smelting furnace and an aluminum scrap smelting furnace, wherein the aluminum ingot smelting furnace further comprises a first smelting chamber, a tower part, a smelting burner and a tower side discharge flue, the aluminum scrap smelting furnace comprises a second smelting chamber and a nozzle, the tower part is positioned at the upper end of the first smelting chamber and communicated with the first smelting chamber, the smelting burner faces the inner side of the first smelting chamber, one end of the tower side discharge flue is communicated with the tower part, the other end of the tower side discharge flue is communicated with the nozzle, the nozzle is arranged at the upper end of the second smelting chamber, and the nozzle is opposite to the inner side of the second smelting chamber.
On the basis of the technical scheme, preferably, the horizontal height of one end, close to the tower part, of the tower side exhaust flue is lower than the horizontal height of one end, close to the nozzle, of the tower side exhaust flue.
On the basis of the above technical solution, it is preferable that the number of the nozzles is at least two, and the nozzle array is arranged at the upper end of the second melting chamber.
On the basis of the technical scheme, preferably, the aluminum scrap smelting furnace further comprises a feeding tower, and the bottom end of the feeding tower is communicated with the inner side of the aluminum scrap smelting furnace.
Still further preferably, the aluminum scrap smelting furnace further comprises an air outlet pipe and a tower cover, the tower cover is movably mounted at the top end of the feeding tower, and the air outlet pipe is communicated with the side face of the feeding tower.
On the basis of the technical scheme, the device is preferable to further comprise tail gas treatment equipment, and one end, far away from the feeding tower, of the gas outlet pipe is communicated with the tail gas treatment equipment.
On the basis of the technical scheme, the tower side flue gas purification device preferably further comprises a heat insulation layer, and the heat insulation layer is wrapped on the outer side of the tower side flue gas purification device.
On the basis of the technical scheme, preferably, the heat-insulating layer is made of calcium silicate.
Compared with the prior art, the aluminum scrap smelting system has the following beneficial effects:
(1) the aluminum scrap smelting system adopts the hot furnace gas generated by the aluminum ingot smelting furnace to heat the aluminum scrap smelting furnace, can recover the furnace gas of the smelting furnace, reduces the emission heat, improves the recovery utilization rate of energy, greatly reduces the energy consumption of the aluminum scrap smelting furnace, can reduce the total emission of the furnace gas, reduces the cost investment of enterprise production, and reduces the use of enterprise production sites and improves the site utilization rate by building peripheral equipment;
(2) the whole device is simple in structure, furnace gas is transported by utilizing the principle of hot gas rising, additional auxiliary air supply equipment is not needed, the equipment investment cost is reduced, the waste gas utilization rate is high, the energy utilization efficiency is high, the value concept of green production is compounded, the environmental pollution is reduced, the emission cost is reduced, and the device has a good application value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a connection structure of an aluminum scrap melting system according to the present invention.
In the figure: 1-aluminum ingot smelting furnace, 2-aluminum scrap smelting furnace, 3-tail gas treatment equipment, 11-first smelting chamber, 12-tower part, 13-smelting burner, 14-tower side discharge flue, 15-heat preservation layer, 21-second smelting chamber, 22-nozzle, 23-feeding tower, 24-air outlet pipe and 25-tower cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the aluminum scrap melting system of the present invention includes an aluminum ingot melting furnace 1 and an aluminum scrap melting furnace 2, where the aluminum ingot melting furnace 1 is used for melting an aluminum ingot 2, the aluminum scrap melting furnace 2 is used for melting recovered aluminum scrap, the aluminum ingot melting furnace 1 further includes a first melting chamber 11, a tower portion 12, a melting burner 13 and a tower side discharge flue 14, the tower portion 12 is disposed at an upper end of the first melting chamber 11, the tower portion 12 is communicated with the first melting chamber 11, the tower portion 12 is used as a channel for putting in the aluminum ingot and can be used as a channel for discharging flue gas, a side surface of the tower portion 12 is communicated with the tower side discharge flue, the tower side discharge flue 14 is used for discharging flue gas in the tower portion 12, the first melting chamber 11 is further provided with the melting burner 13, and the melting burner 13 faces to an inner side of the first melting chamber 11 and is used for injecting high temperature flame to heat and melt the aluminum ingot; the aluminum scrap smelting furnace 2 comprises a second melting chamber 21 and a nozzle 22, the nozzle 22 is installed on the second melting chamber 21, the nozzle 22 faces the inner side of the second melting chamber 21, the nozzle 22 is communicated with the tower part 12 through the tower side discharge flue 14, high-temperature furnace gas in the aluminum ingot smelting furnace 1 is discharged to the aluminum scrap smelting furnace 2 through the tower side discharge flue 14, and aluminum scraps in the aluminum scrap smelting furnace 2 are heated.
In particular embodiments, the level of the end of the tower side flue 14 adjacent the tower 12 is lower than the level of the end of the tower side flue 14 adjacent the nozzles 22.
Among the above embodiment, the high temperature furnace gas temperature that produces in the aluminium ingot smelting furnace 1 can reach 900 ℃, consequently can be directly used for smelting the aluminium bits, if adopt the fan with high temperature furnace gas direct from aluminium ingot smelting furnace 1 defeated aluminium bits smelting furnace 2 in, cause calorific loss easily, be unfavorable for thermal recycle, consequently let the highly be less than the end of giving vent to anger of inlet end, can utilize the law of steam upward motion to make it reach aluminium bits smelting furnace 2 through natural motion, design more rationally.
In the embodiment, the number of the nozzles 22 is at least two, and the nozzles 22 are arrayed at the upper end of the second melting chamber 21.
In the above embodiment, the nozzles 22 are used for heating the aluminum scraps in the second melting chamber 21, and in order to make the heating efficiency higher and the heating more uniform, at least two nozzles 22 are provided, and the nozzles 22 are arranged in an array, so that the heating is more uniform, and the design is more reasonable.
In a specific embodiment, the aluminum scrap smelting furnace 2 further comprises a feeding tower 23, and the bottom end of the feeding tower 23 is communicated with the inner side of the aluminum scrap smelting furnace 2.
In the above embodiment, the feeding tower 23 is used for feeding aluminum scraps, and meanwhile, a temporary storage space is provided for the aluminum scraps, the aluminum scraps are stacked in the feeding tower 23 after being fed, furnace gas discharged from the second melting chamber 21 passes through the feeding tower 23 and then is discharged, the furnace gas can preheat the aluminum scraps stacked in the feeding tower 23, heat of the furnace gas can be further recycled, energy consumption is reduced, and heating efficiency is improved.
In the embodiment, the aluminum scrap melting furnace 2 further comprises an outlet pipe 24 and a tower cover 25, the outlet pipe 24 is arranged at the side part of the material tower 23 and is communicated with the material tower 23, the tower cover 25 is arranged at the top opening of the material tower, the tower cover 25 can prevent final furnace gas from leaking and is used for controlling feeding, and the outlet pipe 24 is used for discharging the final furnace gas.
In the specific embodiment, the device also comprises a tail gas treatment device 3, and one end of the gas outlet pipe 24, which is far away from the feeding tower 23, is communicated with the tail gas treatment device 3.
In the above embodiment, the off-gas treatment apparatus 3 may be a scrubber, an adsorption tower, a photocatalytic decomposition apparatus, or a low-temperature plasma exhaust gas treatment apparatus.
In the specific embodiment, the flue gas desulfurization tower further comprises an insulating layer 15, and the insulating layer 15 wraps the outer side of the tower side flue gas channel 14.
The heat insulation layer 15 can insulate the tower side discharge flue 14, and heat is prevented from being consumed in the transmission process.
In a specific embodiment, the insulating layer 15 is made of calcium silicate.
As the temperature of furnace gas transported in the tower side discharge flue 14 is as high as 900 ℃, a high-temperature-resistant heat-insulating material is needed, and the calcium silicate has the advantages of low price, good heat-insulating effect, high strength and good application value.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. An aluminum scrap smelting system comprises an aluminum ingot smelting furnace (1) and an aluminum scrap smelting furnace (2), and is characterized in that the aluminum ingot smelting furnace (1) further comprises a first melting chamber (11), a tower part (12), melting burners (13) and a tower side discharge flue (14), the aluminum scrap smelting furnace (2) comprises a second melting chamber (21) and a nozzle (22), the tower part (12) is positioned at the upper end of the first melting chamber (11) and communicated with each other, the melting burners (13) face the inner side of the first melting chamber (11), one end of the tower side discharge flue (14) is communicated with the tower part (12), the other end of the tower side discharge flue (14) is communicated with the nozzle (22), the nozzle (22) is arranged at the upper end of the second melting chamber (21), the nozzle (22) faces the inner side of the second melting chamber (21), the horizontal height of one end, close to the tower side discharge flue (14), close to the tower part (12), is lower than the horizontal height of one end, close to the nozzle (22), of the tower side discharge flue (14), the tower is characterized by further comprising an insulating layer (15), wherein the insulating layer (15) is wrapped on the outer side of the tower side smoke exhaust channel (14).
2. An aluminium scrap smelting system according to claim 1, wherein the number of nozzles (22) is at least two, and the nozzles (22) are arranged in an array at the upper end of the second melting chamber (21).
3. The aluminium scrap smelting system according to claim 1, wherein the aluminium scrap smelting furnace (2) further comprises a feeding tower (23), the bottom end of the feeding tower (23) being in communication with the inside of the aluminium scrap smelting furnace (2).
4. The aluminum scrap melting system according to claim 3, wherein the aluminum scrap melting furnace (2) further comprises an outlet pipe (24) and a tower cover (25), the tower cover (25) is movably mounted at the top end of the feeding tower (23), and the outlet pipe (24) is communicated with the side surface of the feeding tower (23).
5. An aluminium scrap smelting system according to claim 4, further comprising an off-gas treatment device (3), wherein the end of the outlet duct (24) remote from the feed tower (23) is in communication with the off-gas treatment device (3).
6. An aluminium scrap smelting system according to claim 1, wherein the insulation layer (15) is calcium silicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484996.0A CN110285671B (en) | 2019-06-05 | 2019-06-05 | Aluminum scrap smelting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484996.0A CN110285671B (en) | 2019-06-05 | 2019-06-05 | Aluminum scrap smelting system |
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| Publication Number | Publication Date |
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| CN110285671A CN110285671A (en) | 2019-09-27 |
| CN110285671B true CN110285671B (en) | 2021-03-19 |
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| CN201910484996.0A Active CN110285671B (en) | 2019-06-05 | 2019-06-05 | Aluminum scrap smelting system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763016A (en) * | 2019-11-18 | 2020-02-07 | 佛山市南海创能工业炉窑有限公司 | Aluminum scrap furnace |
| CN113203284A (en) * | 2021-04-15 | 2021-08-03 | 江苏迅隆铝业有限公司 | Aluminum alloy continuous melting furnace for regenerating resin sand by using waste heat |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202182624U (en) * | 2011-08-01 | 2012-04-04 | 浙江万安铝业有限公司 | Energy-saving aluminium melting conjuncted furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202297736U (en) * | 2011-09-01 | 2012-07-04 | 浙江郑泰汽轮股份有限公司 | Improved aluminum scrap furnace |
| CN203128634U (en) * | 2012-12-20 | 2013-08-14 | 江苏凯特汽车部件有限公司 | Device for recycling aluminum scrap turned from automobile aluminum alloy wheel |
| CN104152697B (en) * | 2014-07-21 | 2016-04-27 | 湖州织里荣华铝业有限公司 | A kind of waste aluminum retrieving arrangement |
| CN204281828U (en) * | 2014-11-19 | 2015-04-22 | 保定安保能冶金设备有限公司 | Secondary aluminum waste gas circulation purification system |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202182624U (en) * | 2011-08-01 | 2012-04-04 | 浙江万安铝业有限公司 | Energy-saving aluminium melting conjuncted furnace |
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