CN114939634B - Environment-friendly aluminum ingot production process - Google Patents
Environment-friendly aluminum ingot production process Download PDFInfo
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- CN114939634B CN114939634B CN202210566357.0A CN202210566357A CN114939634B CN 114939634 B CN114939634 B CN 114939634B CN 202210566357 A CN202210566357 A CN 202210566357A CN 114939634 B CN114939634 B CN 114939634B
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- aluminum liquid
- storage barrel
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 186
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 186
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 201
- 238000003860 storage Methods 0.000 claims abstract description 59
- 238000005266 casting Methods 0.000 claims abstract description 40
- 238000011084 recovery Methods 0.000 claims abstract description 38
- 239000004615 ingredient Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 4
- 238000005352 clarification Methods 0.000 claims abstract description 4
- 230000004907 flux Effects 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000007639 printing Methods 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 59
- 239000011261 inert gas Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 description 18
- 239000004411 aluminium Substances 0.000 description 13
- 238000005485 electric heating Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D9/00—Machines or plants for casting ingots
- B22D9/006—Machines or plants for casting ingots for bottom casting
-
- 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)
- Continuous Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to an environment-friendly aluminum ingot production process; the specific operation steps comprise: step one: weighing the ingredients, adding a proper amount of flux in a matching way, pouring the ingredients into a mixing furnace, and heating and refining the ingredients after full stirring to obtain aluminum liquid; step two: after standing the aluminum liquid for a set time, completing clarification, and then salvaging out oxides on the surface of the aluminum liquid through a salvaging tool to complete slagging-off; step three: pouring the aluminum liquid obtained after slag skimming into ingot casting equipment, heating and preserving heat, standing, and then pouring the aluminum liquid into a die for ingot casting and smelting number printing operation; by closing the first control valve and opening the third control valve, redundant aluminum liquid in the L-shaped pipe and the feeding pipe enters the recovery barrel, closing the second control valve and then opening the fourth control valve, and because the liquid storage barrel is in a negative pressure state, the redundant aluminum liquid is injected into the liquid storage barrel through the recovery pipe, and meanwhile, the purity of the aluminum liquid in the liquid storage barrel is not influenced.
Description
Technical Field
The invention relates to the technical field of aluminum ingot production, in particular to an environment-friendly aluminum ingot production process.
Background
At present, when aluminum liquid is cast in a mold, the aluminum liquid is cast from the top of the mold by a chute or a ladle, and because the high-temperature aluminum liquid is contacted with air and can be oxidized rapidly, an oxide layer can be formed on the surface of the aluminum liquid in the mold, the oxide layer can be scattered and destroyed by the aluminum liquid during casting, so that the subsequent aluminum liquid is oxidized continuously to form a new oxide layer, and the scattered oxide layer can be mixed into the aluminum liquid below along with liquid flow, so that the aluminum liquid contains more aluminum oxide impurities;
as in the patent document with publication number CN112091187B, the aluminum ingot continuous casting production line casting device can effectively reduce the formation of alumina, improve the utilization rate of aluminum liquid, and avoid the defect that an oxide layer is flushed into the aluminum liquid, so as to effectively improve the quality of aluminum ingot, but after a sufficient amount of aluminum liquid is injected into a die, the excessive aluminum liquid in a feed pipe and an L-shaped pipe cannot be effectively utilized, thereby causing the waste of the aluminum liquid; and the cover plate is easy to deviate in the process of moving the mould, so that the aluminum liquid is leaked, and meanwhile, when the casting device of the aluminum ingot continuous casting production line works, the aluminum liquid is injected into the mould from the feeding hole, a small amount of aluminum liquid can splash, and the aluminum liquid is easy to react and oxidize with air, so that the purity of the aluminum ingot is influenced.
Disclosure of Invention
The technical problem solved by the scheme is as follows:
(1) How to set up the material injection mechanism, through closing the first control valve and opening the third control valve first, make L-shaped pipe and surplus aluminium liquid in the feed pipe enter the recovery barrel, inert gas enters L-shaped pipe and feed pipe, close the second control valve, open the fourth control valve again, because the liquid storage barrel is in the negative pressure state, the surplus aluminium liquid will be poured into the liquid storage barrel through the recovery pipe, will not influence the purity of aluminium liquid in the liquid storage barrel at the same time;
(2) How to slide in the feed hole through the two limiting plates by arranging the anti-reflection mechanism, aluminum liquid conveniently enters the die through the feed trough, and meanwhile, when the cover plate seals the feed hole, the cover plate is limited to prevent the cover plate from deviating to cause the leakage of the aluminum liquid;
(3) How is through setting up sealing unit, opens through first control valve and second control valve, cooperates the aspiration pump to take out the air in the seal groove for in the aluminium liquid injection mould, reduce the air contact in aluminium liquid and the seal groove, reduce the quantity that there is the oxide in the aluminium liquid, guaranteed the purity of aluminium ingot.
The aim of the invention can be achieved by the following technical scheme: an environment-friendly aluminum ingot production process comprises the following specific operation steps:
step one: weighing the ingredients, adding a proper amount of flux in a matching way, pouring the ingredients into a mixing furnace, and heating and refining the ingredients after full stirring to obtain aluminum liquid;
step two: after standing the aluminum liquid for a set time, completing clarification, and then salvaging out oxides on the surface of the aluminum liquid through a salvaging tool to complete slagging-off;
step three: pouring the aluminum liquid obtained after slag skimming into ingot casting equipment, heating and preserving heat, standing, and then pouring the aluminum liquid into a die for ingot casting and smelting number printing operation;
step four: cooling aluminum liquid in the mold to obtain an aluminum ingot, demolding the aluminum ingot by a knocking tool, and cooling the demolded aluminum ingot by water;
step five: stacking and bundling the aluminum ingots subjected to water cooling through a mechanical arm, and transporting and warehousing the packaged aluminum ingots through a transport vehicle.
The invention further technically improves that: the set time in the second step is 30min-45min.
The invention further technically improves that: the aluminum liquid in the liquid storage barrel is heated by two electric heating plates in the ingot casting equipment.
The invention further technically improves that: in the third step, the first control valve and the second control valve in the ingot casting equipment are opened to be matched with the air sucking pump to suck out the air in the sealing groove, so that the aluminum liquid is injected into the die, the amount of oxides in the aluminum liquid is reduced, and the purity of the aluminum ingot is ensured.
The invention further technically improves that: when the aluminum liquid in the liquid storage barrel in the ingot casting equipment is injected into the die, the liquid storage barrel is in a closed state, so that the liquid storage barrel is in a negative pressure state, the fourth control valve in the ingot casting equipment is opened, the recovery pipe recovers the redundant aluminum liquid in the recovery barrel into the liquid storage barrel, the use efficiency of the aluminum liquid is improved, and the waste of resources is reduced.
The invention further technically improves that: the cover plate is limited through two limiting plates in ingot casting equipment, so that the cover plate is prevented from being offset to cause aluminum liquid leakage, and meanwhile, the cover plate shields the feeding hole through the tension of the two limiting plates matched with the fixing rod, so that the probability of aluminum liquid leakage is further reduced.
The invention further technically improves that: and an air inlet pump in the ingot casting equipment is matched with an air inlet pipe to inject a proper amount of inert gas into the recycling bin, so that the generation of oxides on the surface of the aluminum liquid is reduced under the condition of ensuring the pressure in the recycling bin.
The invention further technically improves that: the ingot casting equipment comprises a liquid storage barrel, and a sealing door is hinged to the top of the liquid storage barrel; external air is prevented from entering the liquid storage barrel through the sealing door, and two electric heating plates are symmetrically arranged in the liquid storage barrel; the aluminum liquid in the liquid storage barrel is heated and insulated through the two electric heating plates, the effect of preventing the aluminum liquid from solidifying is achieved, one side of the liquid storage barrel is provided with two conveying chains which are arranged in parallel, two dies are commonly placed at the tops of the conveying chains, sealing units used for improving the purity of aluminum ingots are arranged at the tops of the dies, an anti-reflection mechanism used for feeding is arranged at the bottom of the inner wall of the dies, and a material injection mechanism used for injecting the aluminum liquid in the liquid storage barrel into the dies is arranged below the liquid storage barrel.
The invention further technically improves that: the feeding mechanism comprises an L-shaped pipe communicated with the bottom of the liquid storage barrel, one section of the L-shaped pipe is vertically arranged in a section of the L-shaped pipe communicated with the liquid storage barrel, the other section of the L-shaped pipe is obliquely arranged downwards, a feeding pipe is arranged at the bottom of the die, a recovery unit for recovering redundant aluminum liquid is arranged at the bottom of the feeding pipe, a first control valve is fixedly arranged in the middle of the L-shaped pipe, a second control valve and a third control valve are fixedly arranged at the top and the bottom of the feeding pipe respectively, a sealing sleeve is arranged at the port of the output end of the feeding pipe, and the sealing sleeve is a SL8081 high-temperature-resistant liquid sealing pad.
The invention further technically improves that: the recycling unit comprises a recycling bin communicated with the bottom end of the feeding pipe, a recycling pipe is communicated with the bottom of the recycling bin, the input end of the recycling pipe is communicated with the L-shaped pipe, the input end of the recycling pipe is positioned above the first control valve, and a fourth control valve is fixedly arranged in the middle of the recycling pipe; when ingot casting operation is needed, the extending end of the hydraulic cylinder is extended, the sealing cover is matched with the die, air in the sealing groove is pumped out through the air pump, aluminum liquid is injected into the die through the L-shaped pipe and the feeding pipe by opening the first control valve and the second control valve, the contact between the aluminum liquid and the air is avoided, the problems that more aluminum oxide impurities are contained in the aluminum liquid in the process of injection into the die, the quality of the aluminum ingot is affected are solved, and the purity of the aluminum ingot is guaranteed; after filling the mould, firstly closing the first control valve and opening the third control valve, so that redundant aluminum liquid in the L-shaped pipe and the feeding pipe enters the recovery barrel, inert gas enters the L-shaped pipe and the feeding pipe, closing the second control valve, and then opening the fourth control valve, wherein the redundant aluminum liquid is injected into the liquid storage barrel through the recovery pipe due to the negative pressure state in the liquid storage barrel, meanwhile, the purity of the aluminum liquid in the liquid storage barrel is not influenced, oxides are prevented from occurring in the aluminum liquid, and after closing the fourth control valve and the third control valve, the air inlet pump is matched with the air inlet pipe to inject sufficient inert gas into the recovery barrel, so that the normal air pressure in the recovery barrel is ensured.
The invention further technically improves that: the anti-reflection mechanism comprises a feeding hole formed in the bottom of the inner wall of the die, the position of the bottom of the feeding hole corresponds to the top end of a feeding pipe, a cover plate for shielding the feeding hole is arranged at the top of the feeding hole, a fixed rod is fixedly connected to the bottom surface of the cover plate, two limiting plates are fixedly arranged at the bottom of the fixed rod, the limiting plates are circular plates, the outer walls of the limiting plates are attached to the inner wall of the feeding hole, a plurality of material through grooves are formed in the circumferential surface of the limiting plates, a plurality of material through grooves are uniformly formed in the material through grooves, and the cover plate, the limiting plates and the fixed rod are made of iron; through two limiting plates in the feed port internal sliding, in the aluminium liquid conveniently gets into the mould through logical silo, when the apron is sealed to the feed port simultaneously, spacing to the apron, prevent that the apron from taking place the skew and leading to aluminium liquid to leak, simultaneously through the pulling force of two limiting plates cooperation dead levers for the apron shelters from the feed port, further reduces aluminium liquid and leaks probability.
The invention further technically improves that: the sealing unit comprises a hydraulic cylinder fixedly connected with an external frame, a sealing cover is fixedly arranged at the output end of the hydraulic cylinder, a sealing groove is formed in the bottom of the sealing cover, the size of the sealing groove is matched with that of a die, a sealing ring is arranged at the bottom of the sealing groove, the sealing ring is a SL5051 liquid sealing pad, an air pump fixedly connected with the external frame is further arranged above the sealing cover, an air exhaust pipe is communicated with the input end of the air exhaust pump, one end of the air exhaust pipe is communicated with the sealing cover, and the air exhaust pipe is a hose; the first control valve and the second control valve are opened to be matched with the air pump to pump out the air in the sealing groove, so that the aluminum liquid is injected into the die, the contact between the aluminum liquid and the air in the sealing groove is reduced, the amount of oxides in the aluminum liquid is reduced, and the purity of the aluminum ingot is ensured.
The invention further technically improves that: the side of recycling bin intercommunication has the intake pipe, still be provided with the air inlet pump in the outside frame, the output and the intake pipe intercommunication of air inlet pump, the input intercommunication of air inlet pump has outside gas-supply pipe, deposit sufficient inert gas in the outside gas-supply pipe.
Compared with the prior art, the invention has the beneficial effects that:
when the aluminum ingot casting device is used, when ingot casting operation is needed, the extending end of the hydraulic cylinder is extended, the sealing cover is matched with the die, then the air in the sealing groove is pumped out through the air pump, the first control valve and the second control valve are opened, so that aluminum liquid is injected into the die through the L-shaped pipe and the feeding pipe, the aluminum liquid is prevented from being contacted with the air, the problems that more aluminum oxide impurities are contained in the aluminum liquid in the process of injection into the die, the quality of the aluminum ingot is influenced are solved, and the purity of the aluminum ingot is ensured; after filling the mould, firstly closing the first control valve and opening the third control valve, so that redundant aluminum liquid in the L-shaped pipe and the feeding pipe enters the recovery barrel, inert gas enters the L-shaped pipe and the feeding pipe, closing the second control valve, and then opening the fourth control valve, wherein the redundant aluminum liquid is injected into the liquid storage barrel through the recovery pipe due to the negative pressure state in the liquid storage barrel, meanwhile, the purity of the aluminum liquid in the liquid storage barrel is not influenced, oxides are prevented from occurring in the aluminum liquid, and after closing the fourth control valve and the third control valve, the air inlet pump is matched with the air inlet pipe to inject sufficient inert gas into the recovery barrel, so that the normal air pressure in the recovery barrel is ensured.
When the aluminum liquid feeding device is used, the two limiting plates slide in the feeding hole, aluminum liquid conveniently enters the die through the feeding groove, meanwhile, when the cover plate seals the feeding hole, the cover plate is limited, the cover plate is prevented from being deviated to cause leakage of the aluminum liquid, and meanwhile, the cover plate is matched with the tension of the fixing rod to shade the feeding hole, so that the probability of leakage of the aluminum liquid is further reduced.
When the aluminum ingot casting device is used, the first control valve and the second control valve are opened, and the air in the sealing groove is pumped out by matching with the air pump, so that the aluminum liquid is injected into the die, the contact between the aluminum liquid and the air in the sealing groove is reduced, the amount of oxides in the aluminum liquid is reduced, and the purity of the aluminum ingot is ensured.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the production flow of an aluminum ingot according to the invention;
FIG. 2 is a schematic diagram of the overall structure of the ingot casting apparatus of the present invention;
FIG. 3 is a schematic diagram of a material injecting mechanism according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
fig. 5 is a schematic perspective view of a partial structure of the anti-reflection mechanism of the present invention.
In the figure: 1. sealing the door; 2. an electric heating plate; 3. a liquid storage barrel; 4. a material injection mechanism; 5. an anti-reflection mechanism; 6. a conveyor chain; 7. a mold; 8. sealing cover; 9. an air extracting pump; 10. an exhaust pipe; 11. a hydraulic cylinder; 12. an air inlet pump; 13. an air inlet pipe; 401. a first control valve; 402. a recovery pipe; 403. a fourth control valve; 404. a recycling bin; 405. a third control valve; 406. an L-shaped pipe; 407. a feed pipe; 408. a second control valve; 501. a cover plate; 502. a limiting plate; 503. a fixed rod; 504. a feed hole; 505. and a material passing groove.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an environment-friendly aluminum ingot production process comprises the following specific operation steps:
step one: weighing the ingredients, adding a proper amount of flux in a matching way, pouring the ingredients into a mixing furnace, and heating and refining the ingredients after full stirring to obtain aluminum liquid;
step two: after standing the aluminum liquid for a set time, completing clarification, and then salvaging out oxides on the surface of the aluminum liquid through a salvaging tool to complete slagging-off;
step three: pouring the aluminum liquid obtained after slag skimming into ingot casting equipment, heating and preserving heat, standing, and then pouring the aluminum liquid into a die 7 for ingot casting and smelting number printing operation;
step four: cooling the aluminum liquid in the die 7 to obtain an aluminum ingot, demolding the aluminum ingot by a knocking tool, and cooling the demolded aluminum ingot by water cooling;
step five: stacking and bundling the aluminum ingots subjected to water cooling through a mechanical arm, and transporting and warehousing the packaged aluminum ingots through a transport vehicle.
Referring to FIG. 1, the time set in the second step is 30min-45min; heating the aluminum liquid in the liquid storage barrel 3 through two electric heating plates 2 in the ingot casting equipment; in the third step, the first control valve 401 and the second control valve 408 in the ingot casting equipment are opened to match the air in the sealing groove to be pumped out by the air pump 9, so that the aluminum liquid is injected into the die 7, the amount of oxides in the aluminum liquid is reduced, and the purity of the aluminum ingot is ensured; when the aluminum liquid in the liquid storage barrel 3 in the ingot casting equipment is injected into the die 7, the liquid storage barrel 3 is in a closed state, so that the liquid storage barrel 3 is in a negative pressure state, and the recovery pipe 402 recovers the excessive aluminum liquid in the recovery barrel 404 into the liquid storage barrel 3 through the opening of the fourth control valve 403 in the ingot casting equipment, thereby improving the use efficiency of the aluminum liquid and reducing the waste of resources; the cover plate 501 is limited by two limiting plates 502 in ingot casting equipment, so that the cover plate 501 is prevented from being deviated to cause aluminum liquid leakage, and meanwhile, the cover plate 501 shields the feeding hole 504 by matching the two limiting plates 502 with the tension of the fixing rod 503, so that the probability of the aluminum liquid leakage is further reduced; the air inlet pump 12 in the ingot casting equipment is matched with the air inlet pipe 13 to inject a proper amount of inert gas into the recycling bin 404, so that the generation of oxides on the surface of the aluminum liquid is reduced under the condition of ensuring the pressure in the recycling bin 404.
Referring to fig. 2, the ingot casting apparatus includes a liquid storage barrel 3, and a sealing door 1 is hinged to the top of the liquid storage barrel 3; external air is prevented from entering the liquid storage barrel 3 through the sealing door 1, and two electric heating plates 2 are symmetrically arranged in the liquid storage barrel 3; the aluminum liquid in the liquid storage barrel 3 is heated and insulated through the two electric heating plates 2, the effect of preventing the aluminum liquid from solidifying is achieved, one side of the liquid storage barrel 3 is provided with two conveying chains 6 which are arranged in parallel, the tops of the two conveying chains 6 are jointly provided with a die 7, the top of the die 7 is provided with a sealing unit for improving the purity of aluminum ingots, the bottom of the inner wall of the die 7 is provided with an anti-reflection mechanism 5 for feeding, and the lower part of the liquid storage barrel 3 is provided with a material injection mechanism 4 for injecting the aluminum liquid in the liquid storage barrel 3 into the die 7.
Referring to fig. 3, the above-mentioned material injecting mechanism 4 includes an L-shaped pipe 406 connected to the bottom of the liquid storage tank 3, wherein one section of the L-shaped pipe 406 connected to the liquid storage tank 3 is vertically arranged, the other section of the L-shaped pipe 406 is obliquely arranged downwards, a feeding pipe 407 is arranged at the bottom of the die 7, a recovery unit for recovering excess aluminum liquid is arranged at the bottom of the feeding pipe 407, a first control valve 401 is fixedly installed in the middle of the L-shaped pipe 406, a second control valve 408 and a third control valve 405 are fixedly installed at the top and bottom of the feeding pipe 407, and a sealing sleeve is arranged at the port of the output end of the feeding pipe 407, wherein the sealing sleeve is a SL8081 high temperature resistant liquid sealing pad.
Referring to fig. 3, the recovery unit includes a recovery barrel 404 connected to the bottom of a feed pipe 407, a recovery pipe 402 is connected to the bottom of the recovery barrel 404, an input end of the recovery pipe 402 is connected to an L-shaped pipe 406, the input end of the recovery pipe 402 is located above the first control valve 401, and a fourth control valve 403 is fixedly installed in the middle of the recovery pipe 402; when ingot casting operation is needed, the extending end of the hydraulic cylinder 11 is extended, the sealing cover 8 is matched with the die 7, air in the sealing groove is pumped out through the air pump 9, aluminum liquid is injected into the die 7 through the L-shaped pipe 406 and the feeding pipe 407 by opening the first control valve 401 and the second control valve 408, the aluminum liquid is prevented from being contacted with the air, the problems that more aluminum oxide impurities are contained in the aluminum liquid in the process of injecting the aluminum liquid into the die 7, the quality of the aluminum ingot is influenced, and the purity of the aluminum ingot is ensured are reduced; after the mold 7 is filled, the first control valve 401 is closed and the third control valve 405 is opened, so that the excessive aluminum liquid in the L-shaped pipe 406 and the feeding pipe 407 enters the recycling bin 404, the inert gas enters the L-shaped pipe 406 and the feeding pipe 407, the second control valve 408 is closed, the fourth control valve 403 is opened, the excessive aluminum liquid is injected into the liquid storage bin 3 through the recycling bin 402 due to the negative pressure state in the liquid storage bin 3, meanwhile, the purity of the aluminum liquid in the liquid storage bin 3 is not influenced, oxides are prevented from occurring in the aluminum liquid, and after the fourth control valve 403 and the third control valve 405 are closed, sufficient inert gas is injected into the recycling bin 404 through the air inlet pump 12 in cooperation with the air inlet pipe 13, so that the air pressure in the recycling bin 404 is ensured to be normal.
Referring to fig. 4 and 5, the anti-reflection mechanism 5 includes a feeding hole 504 formed at the bottom of the inner wall of the mold 7, the bottom of the feeding hole 504 corresponds to the top end of the feeding pipe 407, a cover plate 501 for shielding the feeding hole 504 is provided at the top of the feeding hole 504, a fixing rod 503 is fixedly connected to the bottom surface of the cover plate 501, two limiting plates 502 are fixedly mounted at the bottom of the fixing rod 503, the limiting plates 502 are circular plate-shaped, the outer wall of the limiting plates 502 is attached to the inner wall of the feeding hole 504, a plurality of through-grooves 505 are formed on the circumferential surface of the limiting plates 502, and the plurality of through-grooves 505 are uniformly arranged, and the cover plate 501, the limiting plates 502 and the fixing rods 503 are made of iron; through two limiting plates 502 in feed port 504 internal sliding, in the aluminium liquid conveniently gets into mould 7 through logical silo 505, when apron 501 sealed feed port 504 simultaneously, carry out spacingly to apron 501, prevent that apron 501 from taking place the skew and leading to aluminium liquid to leak, simultaneously through the pulling force of two limiting plates 502 cooperation dead lever 503 for apron 501 shelters from feed port 504, further reduces the probability that aluminium liquid leaked.
Referring to fig. 2, the sealing unit includes a hydraulic cylinder 11 fixedly connected with an external frame, a sealing cover 8 is fixedly mounted at the output end of the hydraulic cylinder 11, a sealing groove is formed at the bottom of the sealing cover 8, the size of the sealing groove is matched with that of the die 7, a sealing ring is arranged at the bottom of the sealing groove, the sealing ring is a SL5051 liquid sealing pad, an air pump 9 fixedly connected with the external frame is further arranged above the sealing cover 8, an air extraction pipe 10 is communicated with the input end of the air extraction pump 9, one end of the air extraction pipe 10 is communicated with the sealing cover 8, and the air extraction pipe 10 is a hose; the first control valve 401 and the second control valve 408 are opened to be matched with the air pump 9 to pump out air in the sealing groove, so that the aluminum liquid is injected into the die 7, the contact between the aluminum liquid and the air in the sealing groove is reduced, the amount of oxides in the aluminum liquid is reduced, and the purity of aluminum ingots is ensured.
Referring to fig. 2, the side of the recycling bin 404 is connected to an air inlet pipe 13, an air inlet pump 12 is further disposed on the external frame, an output end of the air inlet pump 12 is connected to the air inlet pipe 13, an input end of the air inlet pump 12 is connected to an external air pipe, and a sufficient amount of inert gas is stored in the external air pipe.
Working principle: when the aluminum ingot casting device is used, firstly, when ingot casting operation is needed, the extending end of the hydraulic cylinder 11 is extended, the sealing cover 8 is matched with the die 7, then the air in the sealing groove is pumped out through the air pump 9, aluminum liquid is injected into the die 7 through the L-shaped pipe 406 and the feeding pipe 407 by opening the first control valve 401 and the second control valve 408, the aluminum liquid is prevented from being contacted with the air, the problems that more aluminum oxide impurities are contained in the aluminum liquid in the process of injecting the aluminum liquid into the die 7, the quality of aluminum ingots is influenced are solved, and the purity of the aluminum ingot is ensured; after the mold 7 is filled, the first control valve 401 is closed and the third control valve 405 is opened, so that redundant aluminum liquid in the L-shaped pipe 406 and the feeding pipe 407 enters the recovery barrel 404, inert gas enters the L-shaped pipe 406 and the feeding pipe 407, the second control valve 408 is closed, the fourth control valve 403 is opened, the redundant aluminum liquid is injected into the liquid storage barrel 3 through the recovery pipe 402 due to the negative pressure state in the liquid storage barrel 3, meanwhile, the purity of the aluminum liquid in the liquid storage barrel 3 is not influenced, oxides are prevented from occurring in the aluminum liquid, and after the fourth control valve 403 and the third control valve 405 are closed, sufficient inert gas is injected into the recovery barrel 404 through the air inlet pump 12 in cooperation with the air inlet pipe 13, so that the air pressure in the recovery barrel 404 is ensured to be normal; through the sliding of the two limiting plates 502 in the feeding hole 504, aluminum liquid conveniently enters the die 7 through the material passing groove 505, meanwhile, when the cover plate 501 seals the feeding hole 504, the cover plate 501 is limited, the cover plate 501 is prevented from being deviated to cause aluminum liquid leakage, and meanwhile, the two limiting plates 502 are matched with the tension of the fixing rod 503, so that the cover plate 501 shields the feeding hole 504, and the probability of aluminum liquid leakage is further reduced; the first control valve 401 and the second control valve 408 are opened to be matched with the air pump 9 to pump out air in the sealing groove, so that the aluminum liquid is injected into the die 7, the contact between the aluminum liquid and the air in the sealing groove is reduced, the amount of oxides in the aluminum liquid is reduced, and the purity of aluminum ingots is ensured.
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (1)
1. An environment-friendly aluminum ingot production process is characterized in that: the specific operation steps comprise:
step one: weighing ingredients, adding flux in a matching way, pouring the ingredients into a mixing furnace, fully stirring, and heating and refining to obtain aluminum liquid;
step two: after standing the aluminum liquid for a set time, completing clarification, and then salvaging out oxides on the surface of the aluminum liquid through a salvaging tool to complete slagging-off;
step three: pouring the aluminum liquid obtained after slag skimming into ingot casting equipment, heating and preserving heat, standing, and then pouring the aluminum liquid into a die (7) for ingot casting and smelting number printing operations;
step four: cooling the aluminum liquid in the die (7) to obtain an aluminum ingot, demolding the aluminum ingot by a knocking tool, and cooling the demolded aluminum ingot by water cooling;
step five: stacking and bundling the aluminum ingots subjected to water cooling through a mechanical arm, and transporting and warehousing the packaged aluminum ingots through a transport vehicle;
setting the time in the second step to be 30-45 min; in the third step, a first control valve (401) and a second control valve (408) in the ingot casting equipment are opened, air in a sealing groove is pumped out by matching with an air pump (9), so that the aluminum liquid is injected into a die (7), when the aluminum liquid in the liquid storage barrel (3) in the ingot casting equipment is injected into the die (7), the liquid storage barrel (3) is opened by matching with an air inlet pump (12) in the ingot casting equipment, the excessive aluminum liquid in a recovery barrel (404) is recovered into the liquid storage barrel (3) through a fourth control valve (403) in the ingot casting equipment, a cover plate (501) is limited by two limiting plates (502) in the ingot casting equipment, the cover plate (501) is prevented from being deviated, and meanwhile, the cover plate (501) is matched with the tension of a fixed rod (503) to block a feed hole (504), and inert gas is injected into the recovery barrel (404) by matching with an air inlet pump (12) in the ingot casting equipment;
the ingot casting equipment comprises a liquid storage barrel (3), wherein the top of the liquid storage barrel (3) is hinged with a sealing door (1); two parallel conveying chains (6) are arranged on one side of the liquid storage barrel (3), a die (7) is commonly arranged at the top of each conveying chain (6), a sealing unit for improving the purity of an aluminum ingot is arranged at the top of each die (7), an anti-reflection mechanism (5) for feeding is arranged at the bottom of the inner wall of each die (7), and a material injection mechanism (4) for injecting aluminum liquid in the liquid storage barrel (3) into the die (7) is arranged below the liquid storage barrel (3);
the injection mechanism (4) comprises an L-shaped pipe (406) communicated with the bottom of the liquid storage barrel (3), one section of the L-shaped pipe (406) is vertically arranged in communication with the liquid storage barrel (3), the other section of the L-shaped pipe (406) is obliquely downwards arranged, a feeding pipe (407) is arranged at the bottom of the die (7), a recovery unit for recovering redundant aluminum liquid is arranged at the bottom of the feeding pipe (406), a first control valve (401) is fixedly arranged in the middle of the L-shaped pipe (406), a second control valve (408) and a third control valve (405) are respectively and fixedly arranged at the top and the bottom of the feeding pipe (407), a sealing sleeve is arranged at a port of the output end of the feeding pipe (407), the recovery unit comprises a recovery barrel (404) communicated with the bottom of the feeding pipe (407), the input end of the recovery pipe (402) is communicated with the L-shaped pipe (406), the input end of the recovery pipe (402) is positioned above the first control valve (401), and a fourth control valve (403) is fixedly arranged at the middle of the recovery pipe (403);
the anti-reverse mechanism (5) is including seting up feed port (504) in mould (7) inner wall bottom, the position of feed port (504) bottom corresponds with the top of inlet pipe (407), the top of feed port (504) is provided with apron (501) that are used for sheltering from feed port (504), the bottom surface fixedly connected with dead lever (503) of apron (501), the bottom fixed mounting of dead lever (503) has two limiting plates (502), limiting plate (502) are plectane, and the outer wall of limiting plate (502) is laminated with the inner wall of feed port (504), a plurality of feed trough (505) have been seted up to the circumference of limiting plate (502).
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