CN112371690A - Direct and rapid forming device and method for recycling waste aluminum - Google Patents
Direct and rapid forming device and method for recycling waste aluminum Download PDFInfo
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- CN112371690A CN112371690A CN202011132254.0A CN202011132254A CN112371690A CN 112371690 A CN112371690 A CN 112371690A CN 202011132254 A CN202011132254 A CN 202011132254A CN 112371690 A CN112371690 A CN 112371690A
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 157
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002699 waste material Substances 0.000 title claims description 85
- 238000004064 recycling Methods 0.000 title claims description 10
- 238000000465 moulding Methods 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 126
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 108
- 238000004140 cleaning Methods 0.000 claims description 69
- 229910052742 iron Inorganic materials 0.000 claims description 54
- 238000010438 heat treatment Methods 0.000 claims description 49
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- 238000002844 melting Methods 0.000 claims description 41
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- 239000000463 material Substances 0.000 claims description 30
- 230000008018 melting Effects 0.000 claims description 30
- 239000002002 slurry Substances 0.000 claims description 27
- 238000003723 Smelting Methods 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 22
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- 238000005192 partition Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 13
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- 229910052786 argon Inorganic materials 0.000 claims description 10
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- VGIPUQAQWWHEMC-UHFFFAOYSA-N [V].[Mo].[Cr] Chemical compound [V].[Mo].[Cr] VGIPUQAQWWHEMC-UHFFFAOYSA-N 0.000 claims description 2
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- 229910052708 sodium Inorganic materials 0.000 claims 2
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- QKHBMQWPOUUMQZ-BDQAORGHSA-M sodium;hydron;(2s)-2-(octadecanoylamino)pentanedioate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC(=O)N[C@H](C(O)=O)CCC([O-])=O QKHBMQWPOUUMQZ-BDQAORGHSA-M 0.000 claims 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of aluminum scrap recovery, and particularly relates to a direct and rapid molding device and a direct and rapid molding method for aluminum scrap recovery.
Description
Technical Field
The invention belongs to the technical field of waste aluminum recovery, and particularly relates to a direct and rapid waste aluminum recovery molding device and method.
Background
Aluminum is the most abundant metal element in the earth crust, and aluminum alloy can be processed into various sectional materials due to low density, high strength and good plasticity, has excellent electrical conductivity, thermal conductivity and corrosion resistance, is widely applied to important fields of aerospace, automobiles, buildings and the like, and is an important raw material for national economic development.
Along with the increase of yield and usage amount, the amount of waste aluminum products is also larger and larger, but a plurality of aluminum products are disposable, the time from product preparation to product loss is short, the waste of a large amount of aluminum products becomes a pollution source, and the recovery and regeneration of waste aluminum becomes a very important work in all countries of the world; at present, a lot of studies on waste aluminum recovery and waste aluminum molding are carried out, but the combination of recovery and molding technologies is less, so that energy consumption and resource waste are caused, the production time is long, the working efficiency is low, the molding quality is poor, and the precision is not high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a waste aluminum recovery direct and fast forming device and a method, which can combine the waste aluminum recovery remelting and laser melting forming technologies into a whole, directly and fast form the waste aluminum into an aluminum product, reduce the energy consumption and the consumption of auxiliary materials, save resources and cost, shorten the production flow period, and improve the forming quality and precision, and adopts the following technical scheme:
a direct and rapid molding device for aluminum scrap recovery comprises a pretreatment device, a smelting device, an aluminum wire molding device and a laser melting device, wherein the devices are sequentially arranged and connected;
the pretreatment device comprises a feed inlet, an inclined plate, an electromagnetic iron removal device, an ultrasonic cleaning device and a liquid spraying cleaning device; the electromagnetic iron removing device comprises an electromagnetic iron remover, an external power supply and an iron scrap collecting box; the ultrasonic cleaning device comprises a first liquid inlet, a second liquid inlet, an ultrasonic transducer, a cleaning bin, a lower turning plate, a stainless steel wire filter screen, a first lifting baffle and a waste liquid collecting box; the spray cleaning device comprises a waste gas collecting device, a spray nozzle, an inclined plate, an air heater and a second lifting baffle; the pretreatment device is divided into a left part and a right part, a feed inlet is welded on the left side of the top of the box body, the electromagnetic iron remover is fixed on the wall of the box body through screws and is arranged right below the feed inlet, the electromagnetic iron remover is connected with an external power supply which is adhered on the left side of the box body, an iron scrap collecting box is arranged below the electromagnetic iron remover, the iron scrap collecting box is connected in a sliding manner, and a waste liquid collecting box is arranged below the iron scrap collecting box; the right side is for wasing the storehouse, the stainless steel wire filter screen of left side welding in washing the storehouse, first liftable baffle is established in stainless steel wire filter screen left side, first liftable baffle passes through the gear hub connection, the board is turned over under the bottom in washing the storehouse is passed through the gear hub connection, from the top down welds first inlet in proper order on the right side wall, second inlet and ultrasonic transducer, turn over the inboard wall welding swash plate respectively in the board below left and right sides wall down, liquid spray nozzle and exhaust gas collection device are all being welded to both sides swash plate below, second liftable baffle is passed through the gear hub connection to left side wall bottom, the air heater is established to right side wall bottom, the second swash plate is established in the air heater wind.
The smelting device comprises a heat insulation layer, a heat preservation layer, a gas protection device and a battery stirring device, wherein the battery stirring device comprises an electromagnetic stirring device, an external variable frequency power supply, a waste residue collecting box, a discharge hole, a nickel wire filter screen, a partition plate and an infrared heating pipe; smelting device top welding infrared heating pipe, the left side wall skin is the insulating layer, the inlayer is the heat preservation, the insulating layer links to each other with the heat preservation, welding gas protection device on the left side wall, welding electromagnetic stirring device in the middle of bottom heat preservation and the insulating layer, electromagnetic stirring device connects the external variable frequency power source who welds on the box, gear shaft connection baffle is established on the right side wall the left side, the welding nickel silk filter screen of baffle below, sliding connection's waste residue collecting box is established to nickel silk filter screen left side below.
The aluminum wire forming device comprises a tundish, a vibration inclined plate, a roller shoe cavity, an extrusion roller, an extrusion die, a material blocking block, a cooling system, a resistance wire heating device, an extrusion wire material and a cooling shoe; smelting device discharge gate and centre package welding, the vibration hang plate is established to the centre package bottom, the vibration hang plate links to each other with roller shoe die cavity, establish the squeeze roll in the roller shoe die cavity, extrusion die is established on the right side, the fender material piece is established to extrusion die below, the cooling shoe is established to the extrusion die rear side, the roller shoe die cavity, extrusion die, keep off the material piece and the welding of cooling shoe together, the extrusion silk material is through extrusion die extrusion preparation, cooling system is located the extrusion silk material below and welds on the casing, resistance wire heating device is located both sides about the extrusion silk material and welds on the casing, even to laser melting device after the extrusion silk material shaping.
The laser melting device comprises a gas protection device, a cooling device, a flow control device, a crawler feeding device, a temperature control electromagnetic heating device, a laser, a forming cavity, an infrared temperature and distance measuring instrument, a data acquisition camera, a micro-melting laser and an aluminum substrate; inside for the shaping chamber of laser melting device, gaseous protection device is established to the left side wall, aluminium base board is established to the bottom, the data acquisition camera is established to the right side wall, establish the arm of multiaxis connection at the shaping chamber center, bolted connection is in the arm left side for cooling device, mid portion from the top down is welded track material feeding unit, control by temperature change electromagnetic heating device and flow control device in proper order, arm right side welding laser instrument and little melting laser instrument, infrared temperature measurement distancer passes through bolted connection on the arm right side.
Further, the lower plate, the first lifting baffle and the second lifting baffle are all made of chromium-molybdenum-vanadium steel.
Furthermore, the heat insulation layer is a ceramic fiber board, and the heat insulation layer is made of ceramic refractory fibers.
Further, the second swash plate inclination angle is 30 °.
A direct and rapid molding method for recovering waste aluminum comprises the following steps:
s1: waste aluminum scraps enter a pretreatment device through a feed inlet, fall onto an electromagnetic iron remover and are transmitted along with the electromagnetic iron remover, the waste aluminum scraps are adsorbed on the electromagnetic iron remover and are collected in an iron scrap collecting box, the waste aluminum scraps fall into an ultrasonic cleaning device, under the action of an ultrasonic transducer, operations such as paint removal, oil removal and the like are respectively carried out in a cleaning bin, paint remover is introduced from a first liquid inlet for paint removal treatment, after the paint removal treatment is finished, a first lifting baffle on the left side is opened, the paint remover is collected in a waste liquid collecting box through a stainless steel wire filter screen, then the first lifting baffle is closed, cleaning liquid is introduced from a second liquid inlet for oil removal treatment, after the oil removal treatment is finished, the first lifting baffle on the left side is opened again, cleaning liquid is collected in the waste liquid collecting box through the stainless steel wire filter screen, the first lifting baffle is closed, and the first liquid inlet is connected with the electromagnetic, introducing water into the second liquid inlet, cleaning the treated aluminum scraps, opening the first lifting baffle on the left side again after cleaning is finished, allowing the water to pass through the stainless steel wire filter screen and be collected into the waste liquid collecting box, then opening the lower turning plate, allowing the aluminum scraps subjected to ultrasonic cleaning to fall into the liquid spraying cleaning device through the first inclined plate, and closing the lower turning plate after all the aluminum scraps uniformly fall into the second inclined plate in the liquid spraying cleaning device; spraying cleaning liquid through liquid spraying nozzles on two sides of the device, further cleaning the aluminum scrap, then opening the air heater, collecting the cleaning liquid after cleaning the aluminum scrap into the waste gas collecting device in a volatilization mode, drying the aluminum scrap, and after the aluminum scrap after cleaning is dried, opening a second lifting baffle plate to enable the aluminum scrap to fall into the smelting device through a second inclined plate under the action of the wind power of the air heater;
s2: closing a partition plate below the smelting device, opening a gas protection device, melting waste aluminum scraps under the heating action of an infrared heating pipe under the protection of argon gas, stirring by using an electromagnetic stirring device to prepare liquid slurry with fluidity, then opening the partition plate and a nickel wire filter screen with a telescopic function, filtering the liquid slurry by using the nickel wire filter screen, feeding the liquid slurry into a tundish of a continuous extrusion device, and collecting filtered filter residues into a waste residue collection box;
s3: the refined liquid slurry firstly flows into the tundish, is primarily solidified on the vibration inclined plate, is solidified in a roller shoe cavity through a cooling shoe, is extruded into a filamentous aluminum material through an extrusion die, is quenched by water through a cooling system, is dried through a resistance wire heating device, and is finally connected into a laser melting device;
s4: in the laser melting device, firstly, argon gas is introduced into a forming cavity through a gas protection device, the forming cavity is in an inert gas protection environment, an aluminum wire is heated through a temperature control electromagnetic heating device, after the distance between a spray head and a substrate or a printed part is measured through an infrared distance measuring and temperature measuring instrument, the heated aluminum wire is continuously delivered to the substrate or the formed part through a crawler feeding device, the heated aluminum wire is continuously melted to the aluminum substrate through a laser, the wire feeding is limited by a flow control device after printing of each layer of printed surface is finished, meanwhile, the printed part is corrected by a micro-melting laser and a cooling device, the whole process works under the monitoring of a data acquisition camera, and the accurate and rapid forming of the aluminum product is ensured.
Furthermore, the type of the paint remover is one of the paint removers JX-817, JX-821 and JX-827;
further, the cleaning solution is an N-acyl glutamate solution prepared by mixing N-acyl glutamate and alcohol at a temperature of 50-60 ℃ according to a ratio of 1:3-5, wherein the N-acyl glutamate is one of N-lauroyl sodium glutamate (LGS-11), V-cocoyl sodium glutamate (CGS-11), N-oleoyl triethanolamine glutamate (CGT-12), N-stearoyl sodium glutamate (HGS11) and NV-oleoyl sodium glutamate (OGS), and the alcohol is one of methanol and N-butanol;
further, the wind speed of the dried hot wind is 13m3/min-18m3The hot air temperature is 220-250 ℃, and the drying time is 60-80 min;
further, the heating temperature of the infrared heating pipe is 800-900 ℃, and the refining time is 60-90 min;
further, the drying temperature of the resistance wire heating device is 60-70 ℃, and the drying time is 30-50 min;
compared with the prior art, the invention has the following beneficial effects:
(1) the device combination realizes the integration of pretreatment and rapid forming of the waste aluminum scraps, so that the recovered waste aluminum scraps are directly formed into aluminum products, the preparation efficiency is improved, and the device has high application value;
(2) the device has the advantages of simple structure, convenient operation, less links, low energy consumption, energy conservation and environmental protection, can greatly improve the recovery and utilization rate of the waste aluminum, and greatly reduces the manufacturing cost of aluminum products;
(3) the problem in the printing process can be monitored, the precision of the formed part can be timely fed back and adjusted, and the rejection rate is reduced.
Drawings
FIG. 1 is a schematic structural view of a direct and rapid molding apparatus for recycling aluminum scrap;
FIG. 2 is a schematic view of the pretreatment apparatus shown in FIG. 1;
FIG. 3 is a schematic structural view of the smelting device in FIG. 1;
FIG. 4 is a schematic structural view of the aluminum wire forming apparatus shown in FIG. 1;
FIG. 5 is a schematic view of the laser melting apparatus of FIG. 1;
1. a pretreatment device; 101. an electromagnetic iron remover; 102. an iron scrap collecting box; 103. a first liquid inlet; 104. a second liquid inlet; 105. an ultrasonic transducer; 106. turning down the plate; 107. a first inclined plate 108 and an exhaust gas collecting device; 109. a hot air blower; 110. a second swash plate; 111. a second liftable baffle; 112. a liquid spraying nozzle; 113. a waste liquid collection box; 114. a stainless steel wire filter screen; 115. a first liftable baffle; 116. an external power supply; 117. a feed inlet; 2. a smelting device; 201. a thermal insulation layer; 202. a heat-insulating layer; 203. a gas protection device; 204. an electromagnetic stirring device; 205. an external variable frequency power supply; 206. a waste residue collection box; 207. a discharge port; 208. a nickel wire filter screen; 209. a partition plate; 210. an infrared heating pipe; 3. a laser melting device; 3. an aluminum wire forming device; 301. a tundish; 302. a vibrating tilting plate; 303. a roller shoe cavity; 304. a squeeze roll; 305. extruding the die; 306. a material blocking block; 307. a cooling system; 308. a resistance wire heating device; 309. extruding the wire material; 310. a cooling shoe; 4. a laser melting device; 401. a gas protection device; 402. a cooling device; 403. a flow control device; 404. a crawler feeding device; 405. a temperature controlled electromagnetic heating device; 406. a laser; 407. a molding cavity; 408. an infrared temperature and distance measuring instrument; 409. a data acquisition camera; 410. a micro-melting laser; 411. an aluminum substrate.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the direct and rapid molding device for recycling aluminum scrap comprises a pretreatment device 1, a smelting device 2, an aluminum wire molding device 3 and a laser melting device 4, which are arranged in sequence and welded.
As shown in fig. 2, the pretreatment device 1 comprises a box body, an electromagnetic iron remover 101, an iron scrap collecting box 102, a first liquid inlet 103, a second liquid inlet 104, an ultrasonic transducer 105, a lower turning plate 106, a first inclined plate 107, a waste gas collecting device 108, an air heater 109, a second inclined plate 110, a second liftable baffle 111, a liquid spray nozzle 112, a waste liquid collecting box 113, a stainless steel wire filter screen 114, a first liftable baffle 115, an external power supply 116 and a feeding port 117, wherein the pretreatment device 1 is divided into a left part and a right part, the feeding port 117 is welded on the left side of the top of the box body, the electromagnetic iron remover 101 is fixed on the wall of the box body through screws and is arranged right below the feeding port 117, the electromagnetic iron remover 101 is connected with the external power supply 116 adhered on the left side of the box body, the iron scrap collecting box 102 is arranged below the electromagnetic iron remover 101, the iron scrap; the right side is a cleaning bin, the left side of the cleaning bin is welded with a stainless steel wire filter screen 114, the left side of the stainless steel wire filter screen 114 is provided with a first lifting baffle 115, the first lifting baffle 115 is connected through a gear shaft, the bottom of the cleaning bin is connected with a lower turning plate 106 through a gear shaft, the right side wall is sequentially welded with a first liquid inlet 103, a second liquid inlet 104 and an ultrasonic transducer 105 from top to bottom, the left side wall and the right side wall below the lower turning plate 106 are respectively welded with an inclined plate 107, a liquid spray nozzle 112 and a waste gas collecting device 108 are welded below the inclined plates at both sides, the bottom end of the left side wall is connected with a second lifting baffle 111 through the gear shaft, the bottom of the right side wall is provided with a hot air blower 109; the waste aluminum scraps are subjected to impurity removal through an electromagnetic iron remover, an iron scrap collecting box, a waste liquid collecting box and a filter screen, and are subjected to oil removal and paint removal through an ultrasonic transducer and a paint remover, so that the forming precision of the waste aluminum is improved; iron fillings collecting box sliding connection conveniently clears up the iron fillings.
As shown in fig. 3, the smelting device 2 comprises a heat insulation layer 201, a heat insulation layer 202, a gas protection device 203 and a battery stirring device, wherein the battery stirring device comprises an electromagnetic stirring device 204, an external variable frequency power supply 205, a waste residue collection box 206, a discharge hole 207, a nickel wire filter screen 208, a partition 209 and an infrared heating pipe 210; an infrared heating pipe 210 is welded on the top of the smelting device 2, the outer layer of the left side wall is a heat insulation layer 201, the inner layer is a heat insulation layer 202, the heat insulation layer 201 is connected with the heat insulation layer 202, a gas protection device 203 is welded on the left side wall, an electromagnetic stirring device 204 is welded between the heat insulation layer and the bottom heat insulation layer, the electromagnetic stirring device 204 is connected with an external variable frequency power supply 205 welded on a box body, a gear shaft is arranged on the left side of the right side wall and connected with a partition plate 209, a nickel wire filter screen 208 is welded below the partition plate 209, and a waste residue collection box; the device is insulated through the insulating layer and the heat insulating layer, so that the loss of heat is reduced; the waste aluminum scraps are melted in the inert gas environment through the gas protection device, and impurities generated by oxidation are avoided.
As shown in fig. 4, the aluminum wire forming device 3 comprises a tundish 301, a vibration inclined plate 302, a roller shoe cavity 303, a pressing roller 304, a pressing die 305, a material blocking block 306, a cooling system 307, a resistance wire heating device 308, a pressed wire 309 and a cooling shoe 310; a discharge port 207 of a smelting device is welded with a tundish 301, a vibrating inclined plate 302 is arranged at the bottom end of the tundish 301, the vibrating inclined plate 302 is connected with a roller shoe cavity 303, an extrusion roller 304 is arranged in the roller shoe cavity 303, an extrusion die 305 is arranged on the right side, a material blocking block 306 is arranged below the extrusion die 305, a cooling shoe 310 is arranged on the rear side of the extrusion die 305, the roller shoe cavity 303, the extrusion die 305, the material blocking block 306 and the cooling shoe 310 are welded together, an extruded wire 309 is extruded and prepared by the extrusion die 305, a cooling system 307 is positioned below the extruded wire 309 and welded on a shell, resistance wire heating devices 308 are positioned on the upper side and the lower side of the extruded wire 309 and welded on the shell, and the extruded wire 309 is connected to a; the liquid slurry is solidified through the roller shoe cavity, so that the extrusion forming is convenient; drying the water-quenched extruded wires by a resistance wire heating device to remove water stains on the surface.
As shown in fig. 5, the laser melting device 4 comprises a gas protection device 401, a cooling device 402, a flow control device 403, a crawler feeding device 404, a temperature-controlled electromagnetic heating device 405, a laser 406, a molding cavity 407, an infrared temperature and distance measuring instrument 408, a data acquisition camera 409, a micro-melting laser 410 and an aluminum substrate 411; the laser melting device 4 is internally provided with a forming cavity 407, the left side wall of the laser melting device is provided with a gas protection device 401, the bottom of the laser melting device is provided with an aluminum substrate 411, the right side wall of the laser melting device is provided with a data acquisition camera 409, the center of the forming cavity 407 is provided with a multi-shaft connected mechanical arm, a cooling device 402 is connected to the left side of the mechanical arm through bolts, the middle part of the laser melting device is sequentially provided with a welded crawler feeding device 404, a temperature control electromagnetic heating device 405 and a flow control device 403 from top to bottom, the right side of the mechanical arm is welded with a laser 406 and; the aluminum wire is continuously heated through the crawler feeding device, so that the molding precision is prevented from being influenced by uneven heating; the aluminum wire is continuously melted by the laser, so that the forming efficiency is improved; the wire feeding is limited by the flow control device, so that the adjustment is convenient, and the forming quality is improved; the formed part is corrected through the micro-melting laser and the cooling device, and the forming accuracy is improved.
A method for directly and quickly forming recovered waste aluminum comprises the following specific steps:
example one
S1: waste aluminum scraps enter the pretreatment device 1 through a feed inlet 117, fall on the electromagnetic iron remover 101 and are transmitted along with the electromagnetic iron remover, the waste aluminum scraps are adsorbed on the electromagnetic iron remover 101 and are collected in an iron scrap collecting box 102, the waste aluminum scraps fall into an ultrasonic cleaning device, under the action of an ultrasonic transducer 105, paint and oil are respectively removed in a cleaning bin, paint remover is introduced from a first liquid inlet 103 for paint removal, the waste aluminum scraps are soaked in the paint remover for 4min for paint removal, and the type of the paint remover is JX-817 paint remover; after depainting, opening the first lifting baffle 115 at the left side, allowing a depainting agent to be collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, then closing the first lifting baffle 115, introducing a cleaning liquid from the second liquid inlet 104 for removing oil, wherein the cleaning liquid is an N-acyl glutamate solution prepared by N-stearyl sodium glutamate (HGS11) and methanol at a temperature of 55 ℃ according to a ratio of 1: 4; reopen left first liftable baffle 115, let the cleaning solution collect waste liquid collecting tank 113 through stainless steel wire filter screen 114 in, close first liftable baffle 115, after the cleaning solution washs the completion, arrange the cleaning solution, from first inlet 103, second inlet 104 lets in water, wash the aluminium scrap bits of handling, after wasing the completion, reopen left first liftable baffle 115, let water receive through stainless steel wire filter screen 114 and collectCollecting the aluminum scraps in a waste liquid collecting box 113, then opening a lower turning plate 106, allowing the aluminum scraps subjected to ultrasonic cleaning to fall into a liquid spraying cleaning device through a first inclined plate 107 for liquid spraying cleaning, spraying the liquid through liquid spraying nozzles 112 at two sides, wherein the sprayed liquid is a fluorocarbon organic solvent with the density of 1.7g/ml and the model of FC-4430, and when all the aluminum scraps uniformly fall into a second inclined plate 110 in the liquid spraying cleaning device, closing the lower turning plate 106; opening the hot air blower 109, collecting the cleaning liquid after cleaning the waste aluminum scraps into the waste gas collecting device 108 in a volatilization mode, and drying the waste aluminum scraps, wherein the wind speed of the dried hot air is 18m3The temperature of hot air is 230 ℃, the drying time is 70min, and after the drying is finished, a second lifting baffle is opened, so that the aluminum scraps are made to fall into the smelting device 2 under the action of the wind power of the hot air blower 109 through a second inclined plate 110;
s2: closing a partition 209 below the smelting device 2, opening a gas protection device 203, heating the waste aluminum scraps in an infrared heating pipe 210 with 380V voltage and 45KW power to 900 ℃ to smelt for 60min under the protection of argon gas, stirring by using an electromagnetic stirring device 204 with the frequency of 9Hz to prepare liquid slurry with fluidity, then opening the partition 209, filtering the liquid slurry by a nickel wire filter screen 208 with a telescopic function, feeding the liquid slurry into a tundish 301 of a continuous extrusion device, and collecting filtered filter residues in a waste residue collection box 206;
s3: casting the refined liquid slurry in an aluminum wire forming device 3 with the temperature of 700 ℃, solidifying the liquid slurry in a roller shoe cavity 303 of the device, and extruding the liquid slurry into a filiform aluminum material with the diameter of 1.9mm through an extrusion die 305, wherein the rotating speed of an extrusion roller 304 is 6 rpm; water quenching is carried out through a cooling system 307, and the flow rate of water is 12L/min; drying the prepared filamentous aluminum material by a resistance wire heating device 308 at the drying temperature of 70 ℃ for 30 min;
s4: in the laser melting device 4, firstly, argon gas is introduced into the molding cavity 407 through the gas protection device 401, the molding cavity 407 is in the protection environment of inert gas, the aluminum wire is heated to 300-500 ℃ through the temperature control electromagnetic heating device 405, after the distance between the nozzle and the printed piece is measured through the infrared distance measuring thermometer 408, the caterpillar feeding device 404 continuously delivers the heated aluminum wires to an aluminum substrate with a thickness of 25mm, the laser 406 with power of 280W continuously melts the heated aluminum wires to the aluminum substrate 411, after printing on each layer of printing surface is finished, the flow control device limits wire feeding, the extrusion speed of the filiform aluminum material is 45mm/s, the forming speed is 40mm/s, the layering thickness is 0.15mm, meanwhile, the micro-melting laser 410 and the cooling device 402 correct the printed piece, and the whole process works under the monitoring of the data acquisition camera 409, so that the aluminum product is accurately and quickly molded.
Example two
S1: waste aluminum scraps enter the pretreatment device 1 through a feed inlet 117, fall on the electromagnetic iron remover 101 and are transmitted along with the electromagnetic iron remover, the waste aluminum scraps are adsorbed on the electromagnetic iron remover 101 and are collected in an iron scrap collecting box 102, the waste aluminum scraps fall into an ultrasonic cleaning device, under the action of an ultrasonic transducer 105, paint and oil are respectively removed in a cleaning bin, paint remover is introduced from a first liquid inlet 103 for paint removal, the waste aluminum scraps are soaked in the paint remover for 4min for paint removal, and the type of the paint remover is JX-817 paint remover; after depainting, opening the first lifting baffle 115 at the left side, allowing a depainting agent to be collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, then closing the first lifting baffle 115, introducing a cleaning liquid from the second liquid inlet 104 for removing oil, wherein the cleaning liquid is an N-acyl glutamate solution prepared by N-stearyl sodium glutamate (HGS11) and methanol at a temperature of 55 ℃ according to a ratio of 1: 4; opening the first lifting baffle 115 on the left side again to enable cleaning solution to be collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, closing the first lifting baffle 115, after cleaning solution cleaning is completed, discharging the cleaning solution, introducing water from the first liquid inlet 103 and the second liquid inlet 104 to clean the treated aluminum scraps, after cleaning is completed, opening the first lifting baffle 115 on the left side again to enable water to be collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, then opening the lower turning plate 106, enabling the aluminum scraps after ultrasonic cleaning to fall into the liquid spraying cleaning device through the first inclined plate 107 to be sprayed and cleaned, spraying liquid is sprayed out through the liquid spraying nozzles 112 on the two sides, and the spraying liquid is a fluorocarbon organic solvent with the density of 1.7g/ml and the model of FC-4430, and when all the aluminum scraps uniformly fall into the liquid spraying cleaning deviceIn a second inclined plate 110 in the liquid spraying cleaning device, the lower turning plate 106 is closed; opening the hot air blower 109, collecting the cleaning liquid after cleaning the waste aluminum scraps into the waste gas collecting device 108 in a volatilization mode, and drying the waste aluminum scraps, wherein the wind speed of the dried hot air is 17m3The temperature of hot air is 235 ℃, the drying time is 70min, and after the drying is finished, a second lifting baffle is opened, so that the aluminum scraps are made to fall into the smelting device 2 under the action of the wind power of the hot air blower 109 through a second inclined plate 110;
s2: closing a partition 209 below the smelting device 2, opening a gas protection device 203, heating the waste aluminum scraps in an infrared heating pipe 210 with 380V voltage and 45KW power to 900 ℃ to smelt for 60min under the protection of argon gas, stirring by using an electromagnetic stirring device 204 with the frequency of 9Hz to prepare liquid slurry with fluidity, then opening the partition 209, filtering the liquid slurry by a nickel wire filter screen 208 with a telescopic function, feeding the liquid slurry into a tundish 301 of a continuous extrusion device, and collecting filtered filter residues in a waste residue collection box 206;
s3: casting the refined liquid slurry in an aluminum wire forming device 3 with the temperature of 700 ℃, solidifying the liquid slurry in a roller shoe cavity 303 of the device, and extruding the liquid slurry into a filiform aluminum material with the diameter of 1.9mm through an extrusion die 305, wherein the rotating speed of an extrusion roller 304 is 6 rpm; water quenching is carried out through a cooling system 307, and the flow rate of water is 12L/min; drying the prepared filamentous aluminum material by a resistance wire heating device 308 at the drying temperature of 70 ℃ for 30 min;
s4: in the laser melting device 4, firstly, argon gas is introduced into the molding cavity 407 through the gas protection device 401, the molding cavity 407 is in the protection environment of inert gas, the aluminum wire is heated to 400-500 ℃ through the temperature control electromagnetic heating device 405, after the distance between the nozzle and the printed piece is measured through the infrared distance measuring thermometer 408, the caterpillar feeding device 404 continuously delivers the heated aluminum wires to an aluminum substrate with a thickness of 25mm, the laser 406 with power of 270W continuously melts the heated aluminum wires to the aluminum substrate 411, after printing on each layer of printing surface is finished, the flow control device limits wire feeding, the extrusion speed of the filiform aluminum material is 45mm/s, the forming speed is 40mm/s, the layering thickness is 0.19mm, meanwhile, the micro-melting laser 410 and the cooling device 402 correct the printed piece, and the whole process works under the monitoring of the data acquisition camera 409, so that the aluminum product is accurately and quickly molded.
EXAMPLE III
S1: waste aluminum scraps enter the pretreatment device 1 through a feed inlet 117, fall on the electromagnetic iron remover 101 and are transmitted along with the electromagnetic iron remover, the waste aluminum scraps are adsorbed on the electromagnetic iron remover 101 and are collected in an iron scrap collecting box 102, the waste aluminum scraps fall into an ultrasonic cleaning device, under the action of an ultrasonic transducer 105, paint and oil are respectively removed in a cleaning bin, paint remover is introduced from a first liquid inlet 103 for paint removal treatment, the waste aluminum scraps are soaked in the paint remover for 3min for paint removal treatment, and the type of the paint remover is JX-821; after paint removal, the first lifting baffle 115 on the left side is opened, paint remover is collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, then the first lifting baffle 115 is closed, cleaning liquid is introduced from the second liquid inlet 104 to remove oil, and the cleaning liquid is N-acyl glutamate solution prepared by N-lauroyl sodium glutamate (LGS-11) and methanol at the temperature of 50 ℃ according to the proportion of 1: 3; the first liftable baffle 115 at the left side is opened again, so that the cleaning solution is collected into the waste liquid collection tank 113 through the stainless steel wire filter screen 114, the first lifting baffle 115 is closed, after the cleaning solution is cleaned, the cleaning solution is discharged, water is introduced from the first liquid inlet 103 and the second liquid inlet 104, the treated aluminum scraps are cleaned, after the cleaning is finished, the first lifting baffle 115 at the left side is opened again, water is collected into the waste liquid collecting box 113 through the stainless steel wire filter screen 114, then, the lower turning plate 106 is opened, the aluminum scraps after ultrasonic cleaning fall into a liquid spraying cleaning device through a first inclined plate 107 to be sprayed and cleaned, the sprayed liquid is sprayed out through liquid spraying nozzles 112 on two sides, the sprayed liquid is a fluorocarbon organic solvent with the density of 1.76/ml and the model of HCFC-l4lb, and the lower turning plate 106 is closed when all the aluminum scraps uniformly fall into a second inclined plate 110 in the liquid spraying cleaning device; the hot air blower 109 is opened, the cleaning liquid which has cleaned the waste aluminum scraps is collected into the waste gas collecting device 108 in a volatilization mode and the waste aluminum scraps are dried, and the wind speed of the dried hot air is 15m3The hot air temperature is 220 ℃, the drying time is 80min, and the drying is finishedAfter the smelting process is finished, the second lifting baffle is opened, and the waste aluminum scraps are made to fall into the smelting device 2 under the action of the wind power of the hot air blower 109 through the second inclined plate 110;
s2: closing a partition 209 below the smelting device 2, opening a gas protection device 203, heating the waste aluminum scraps in an infrared heating pipe 210 with 380V voltage and 45KW power to 800 ℃ to smelt for 90min under the protection of argon gas, stirring by using an electromagnetic stirring device 204 with the frequency of 8Hz to prepare liquid slurry with fluidity, then opening the partition 209, filtering the liquid slurry by a nickel wire filter screen 208 with a telescopic function, feeding the liquid slurry into a tundish 301 of a continuous extrusion device, and collecting filtered filter residues in a waste residue collection box 206;
s3: casting the refined liquid slurry in an aluminum wire forming device 3 with the temperature of 730 ℃, solidifying the liquid slurry in a roller shoe cavity 303 of the device, and extruding the liquid slurry into a filiform aluminum material with the diameter of 1.8mm through an extrusion die 305, wherein the rotating speed of an extrusion roller 304 is 7 rpm; water quenching is carried out through a cooling system 307, and the flow rate of water is 12L/min; heating device 308 via resistance wire
Drying the prepared filamentous aluminum material at 60 ℃ for 50 min;
s4: in the laser melting device 4, firstly, argon gas is introduced into the molding cavity 407 through the gas protection device 401, the molding cavity 407 is in the protection environment of inert gas, the aluminum wire is heated to 300-500 ℃ through the temperature control electromagnetic heating device 405, after the distance between the nozzle and the printed piece is measured through the infrared distance measuring thermometer 408, the caterpillar feeding device 404 continuously delivers the heated aluminum wire to the aluminum substrate with the thickness of 20mm, the laser 406 with the power of 220W continuously melts the heated aluminum wire to the aluminum substrate 411, after printing on each layer of printing surface is finished, the flow control device limits wire feeding, the extrusion speed of the filiform aluminum material is 45mm/s, the forming speed is 50mm/s, the layering thickness is 0.2mm, meanwhile, the micro-melting laser 410 and the cooling device 402 correct the printed piece, and the whole process works under the monitoring of the data acquisition camera 409, so that the aluminum product is accurately and quickly molded.
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 and improvements made within the spirit and principles of the present invention are intended to be included therein.
Claims (10)
1. A direct and rapid forming device for aluminum scrap recovery comprises a pretreatment device (1), a smelting device (2), an aluminum wire forming device (3) and a laser melting device (4), and is characterized in that the pretreatment device (1) comprises a feed inlet (117), an electromagnetic iron removal device, an ultrasonic cleaning device and a spray liquid cleaning device; the electromagnetic iron removal device comprises an electromagnetic iron remover (101), an external power supply (116) and an iron scrap collecting box (102); the ultrasonic cleaning device comprises a first liquid inlet (103), a second liquid inlet (104), an ultrasonic transducer (105), a cleaning bin, a lower turning plate (106), a stainless steel wire filter screen (114), a first lifting baffle (115) and a waste liquid collecting box (113); the spray cleaning device comprises an exhaust gas collecting device (108), a spray nozzle (112), a first inclined plate (107), a second inclined plate (110), a hot air blower (109) and a second lifting baffle (111); the pretreatment device (1) is divided into a left part and a right part, a feed inlet (117) is welded on the left side of the top of the box body, the electromagnetic iron remover (101) is fixed on the wall of the box body through screws and is arranged right below the feed inlet (117), the electromagnetic iron remover (101) is connected with an external power supply (116) adhered to the left side of the box body, an iron scrap collecting box (102) is arranged below the electromagnetic iron remover (101), the iron scrap collecting box (102) is in sliding connection, and a waste liquid collecting box (113) is arranged below the iron scrap collecting box (102); the right side is a cleaning bin, a stainless steel wire filter screen (114) is welded on the left side of the cleaning bin, a first lifting baffle (115) is arranged on the left side of the stainless steel wire filter screen (114), the first lifting baffle (115) is connected through a gear shaft, the bottom of the cleaning bin is connected with a lower turning plate (106) through the gear shaft, a first liquid inlet (103), a second liquid inlet (104) and an ultrasonic transducer (105) are sequentially welded on the right side wall from top to bottom, inclined plates (107) are respectively welded in the left side wall and the right side wall below the lower turning plate (106), a liquid spray nozzle (112) and a waste gas collecting device (108) are welded below the inclined plates on both sides, the bottom end of the left side wall is connected with a second lifting baffle (111) through the gear shaft, an air heater (109) is arranged at the bottom;
the smelting device (2) comprises a heat insulation layer (201), a heat insulation layer (202), a gas protection device (203) and a battery stirring device, wherein the battery stirring device comprises an electromagnetic stirring device (204), an external variable frequency power supply (205), a waste residue collection box (206), a discharge hole (207), a nickel wire filter screen (208), a partition plate (209) and an infrared heating pipe (210); an infrared heating pipe (210) is welded at the top of the smelting device (2), a heat insulation layer (201) is arranged on the outer layer of the left side wall, a heat insulation layer (202) is arranged on the inner layer, the heat insulation layer (201) is connected with the heat insulation layer (202), a gas protection device (203) is welded on the left side wall, an electromagnetic stirring device (204) is welded between the bottom heat insulation layer and the heat insulation layer, the electromagnetic stirring device (204) is connected with an external variable frequency power supply (205) welded on the box body, a gear shaft is arranged on the left side of the right side wall and connected with a partition plate (209), a nickel wire filter screen (208) is welded below the partition plate (209), and;
the aluminum wire forming device (3) comprises a tundish (301), a vibration inclined plate (302), a roller shoe cavity (303), an extrusion roller (304), an extrusion die (305), a material blocking block (306), a cooling system (307), a resistance wire heating device (308), an extrusion wire (309) and a cooling shoe (310); a discharge port (207) of a smelting device is welded with a tundish (301), a vibration inclined plate (302) is arranged at the bottom end of the tundish (301), the vibration inclined plate (302) is connected with a roller shoe cavity (303), an extrusion roller (304) is arranged in the roller shoe cavity (303), an extrusion die (305) is arranged on the right side, a material blocking block (306) is arranged below the extrusion die (305), a cooling shoe (310) is arranged on the rear side of the extrusion die (305), the roller shoe cavity (303), the extrusion die (305), the material blocking block (306) and the cooling shoe (310) are welded together, an extruded wire (309) is extruded and prepared by the extrusion die (305), a cooling system (307) is positioned below the extruded wire (309) and welded on the shell, resistance wire heating devices (308) are positioned on the upper side and the lower side of the extruded wire (309) and welded on the shell, and the extruded wire (309) is connected to a laser smelting;
the laser melting device (4) comprises a gas protection device (401), a cooling device (402), a flow control device (403), a crawler feeding device (404), a temperature control electromagnetic heating device (405), a laser (406), a molding cavity (407), an infrared temperature measurement range finder (408), a data acquisition camera (409), a micro-melting laser (410) and an aluminum substrate (411); the laser melting device (4) is internally provided with a forming cavity (407), the left side wall is provided with a gas protection device (401), the bottom of the laser melting device is provided with an aluminum substrate (411), the right side wall is provided with a data acquisition camera (409), the center of the forming cavity (407) is provided with a multi-shaft connected mechanical arm, a cooling device (402) is connected to the left side of the mechanical arm by bolts, the middle part of the laser melting device is provided with a welded crawler feeding device (404), a temperature control electromagnetic heating device (405) and a flow control device (403) from top to bottom in sequence, the right side of the mechanical arm is welded with a laser (406) and a micro-melting laser (410), and an infrared;
the four devices are arranged in sequence and welded.
2. The direct and rapid prototyping device for aluminum scrap recovery as set forth in claim 1 wherein the lower plate (106), the first liftable baffle (115) and the second liftable baffle (111) are all made of chrome molybdenum vanadium steel.
3. The direct rapid prototyping apparatus of aluminum scrap recycling according to claim 1 wherein the angle of inclination of the second inclined plate (110) is 30 °.
4. The direct and rapid prototyping device for aluminum scrap recycling according to claim 1, wherein the heat insulation layer (201) is a ceramic fiber board, the heat insulation layer (202) is a ceramic refractory fiber, and the partition plate (209) is made of chromium molybdenum vanadium steel.
5. A direct and rapid molding method for recycling waste aluminum is characterized by comprising the following steps:
s1: waste aluminum scraps enter a pretreatment device through a feed inlet (117), fall onto an electromagnetic iron remover (101) and are transmitted along with the electromagnetic iron remover, the waste iron scraps are adsorbed on the electromagnetic iron remover (101) and are collected in an iron scrap collecting box (102), the waste aluminum scraps fall into an ultrasonic cleaning device, paint and oil are respectively removed in a cleaning bin under the action of an ultrasonic transducer (105), paint remover is introduced from a first liquid inlet (103) for paint removal, after the paint removal treatment is finished, a first lifting baffle (115) on the left side is opened, the paint remover is collected in a waste liquid collecting box (113) through a stainless steel wire filter screen (114), then the first lifting baffle (115) on the left side is closed, cleaning liquid is introduced from a second liquid inlet (104) for oil removal, the first lifting baffle (115) on the left side is opened, and cleaning liquid is collected in the waste liquid collecting box (113) through the stainless steel wire filter screen (114), closing the first lifting baffle (114), introducing water from the first liquid inlet (103) and the second liquid inlet (104), cleaning the treated aluminum scraps, opening the first lifting baffle (115) on the left side again after the cleaning is finished, collecting the water into a waste liquid collecting box (113) through a stainless steel wire filter screen (114), opening the lower turning plate (106), allowing the aluminum scraps subjected to ultrasonic cleaning to fall into the liquid spray cleaning device through a first inclined plate (107), and closing the lower turning plate (106) after all the aluminum scraps uniformly fall into a second inclined plate (110) in the liquid spray cleaning device; cleaning liquid is sprayed out through liquid spraying nozzles (112) on the two sides of the device to further clean the aluminum scrap, then an air heater (109) is opened, the cleaning liquid which cleans the aluminum scrap is collected into a waste gas collecting device (108) in a volatilization mode and dries the aluminum scrap, and after the cleaned aluminum scrap is dried, a second lifting baffle is opened to allow the aluminum scrap to fall into the smelting device (2) under the wind force of the air heater (109) through a second inclined plate (110);
s2: closing a partition plate (209) below the smelting device (2), opening a gas protection device (203), melting waste aluminum scraps under the heating action of an infrared heating pipe (210) under the protection of argon gas, stirring by using an electromagnetic stirring device (204) to prepare liquid slurry with fluidity, then opening the partition plate (209), filtering the liquid slurry by using a flexible nickel wire filter screen (208), feeding the liquid slurry into a tundish (301) of a continuous extrusion device, and collecting filtered filter residues into a waste residue collection box (206);
s3: the refined liquid slurry flows in from a tundish (301), is primarily solidified in a vibration inclined plate (302), is solidified in a roller shoe cavity (303) through a cooling shoe (310), is extruded into a filamentous aluminum material through an extrusion die (302), is subjected to water quenching through a cooling system (307), is dried through a resistance wire heating device (308), and is finally connected into a laser melting device (4);
s4: in the laser melting device (4), argon is introduced into a forming cavity (407) through a gas protection device (401), the forming cavity (407) is made to be in an inert gas protection environment, an aluminum wire is heated through a temperature control electromagnetic heating device (405), after the distance between a spray head and a substrate or a printing piece is measured through an infrared distance measuring and temperature measuring instrument (408), the heated aluminum wire is continuously delivered to the aluminum substrate (411) or the forming piece through a crawler feeding device (404), the heated aluminum wire is continuously melted onto the aluminum substrate (411) through a laser (406), the flow control device limits wire feeding after printing of each layer of printing surface is finished, meanwhile, a micro-melting laser (410) and a cooling device (402) correct the printing piece, the whole process works under the monitoring of a data acquisition camera (409), and accurate and rapid forming of an aluminum product is guaranteed.
6. The direct and rapid prototyping method for aluminum scrap recycling according to claim 5, wherein the type of said paint remover is one of the paint removers JX-817, JX-821 and JX-827.
7. The direct and rapid prototyping method of aluminum scrap recycling according to claim 5 wherein said cleaning solution is a solution of N-acyl glutamate with alcohols at a ratio of 1:3-5 at a temperature of 50 ℃ -60 ℃, said N-acyl glutamate being one of sodium N-lauroyl glutamate (LGS-11), sodium V-cocoyl glutamate (CGS-11), triethanolamine N-oleoyl glutamate (CGT-12), sodium N-stearoyl glutamate (HGS11), sodium NV-Oleoyl Glutamate (OGS); the alcohol is one of methanol and n-butanol.
8. The direct and rapid prototyping method for aluminum scrap recycling according to claim 5, wherein the drying hot wind speed is 13m3/min-18m3The hot air temperature is 220-250 ℃, and the drying time is 60-80 min.
9. The direct and rapid molding method for aluminum scrap recovery according to claim 5, wherein the heating temperature of the infrared heating pipe is 800-900 ℃, and the refining time is 60-90 min.
10. The direct and rapid molding method for aluminum scrap recovery according to claim 5, wherein the drying temperature of the resistance wire heating device is 60 ℃ to 70 ℃, and the drying time is 30min to 50 min.
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