CN118361957A - Aluminum alloy melting furnace and use method thereof - Google Patents
Aluminum alloy melting furnace and use method thereof Download PDFInfo
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- CN118361957A CN118361957A CN202410636861.2A CN202410636861A CN118361957A CN 118361957 A CN118361957 A CN 118361957A CN 202410636861 A CN202410636861 A CN 202410636861A CN 118361957 A CN118361957 A CN 118361957A
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- aluminum alloy
- melting
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- stirring
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- 238000002844 melting Methods 0.000 title claims abstract description 121
- 230000008018 melting Effects 0.000 title claims abstract description 121
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 55
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000956 alloy Substances 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 239000000706 filtrate Substances 0.000 claims abstract description 18
- 239000002912 waste gas Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010309 melting process Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 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
- 238000009835 boiling Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to the technical field of aluminum alloy melting, and particularly discloses an aluminum alloy melting furnace which comprises a heat-preserving shell and a feeding shell, wherein the heat-preserving shell is fixedly connected with the feeding shell; the melting assembly is arranged in the heat-insulating shell and is used for melting the aluminum alloy material; the stirring and inflating assembly is used for inflating nitrogen into the melting assembly; the guiding blanking assembly is used for adding the aluminum alloy material to be melted into the melting assembly and drying and preheating the aluminum alloy material; according to the invention, harmful gas in the waste gas is absorbed by the filtrate and heat in the waste gas is absorbed, and nitrogen entering the melting cylinder through the gas charging pipe absorbs heat in the filtrate in the process of passing through the vortex-shaped pipe, so that the temperature of the charged nitrogen can be increased, the purpose of reducing heat loss caused by waste gas discharge in the melting process is achieved, the energy consumption of the melting furnace is reduced, and the production cost of aluminum alloy is reduced.
Description
Technical Field
The invention relates to the technical field of aluminum alloy melting, in particular to an aluminum alloy melting furnace and a using method thereof.
Background
An aluminum alloy melting furnace is an apparatus for melting an aluminum alloy, which generally heats an aluminum alloy to a temperature above a melting point using a high temperature burner or a resistance heater as a heat source to melt the aluminum alloy into a liquid state, and is widely used in the field of production and processing of aluminum alloy materials, such as aluminum alloy casting, aluminum alloy die casting, aluminum alloy extrusion, etc., and provides a high temperature working environment to rapidly melt the aluminum alloy and perform subsequent processing and manufacturing by a suitable process.
In the process of melting aluminum alloy materials, aluminum easily reacts with oxygen in air at high temperature to generate aluminum oxide, so that an oxide layer is formed on the surface of the melted liquid aluminum alloy, the melting point of the aluminum is reduced by the oxide layer, and heat conduction and fluidity in the melting process are affected.
In the prior art, some measures are usually taken in the melting process, such as protection by using inert gas, so that alumina generation in the melting process of aluminum alloy is reduced, in the process of protecting the aluminum alloy in the melting furnace by using inert gas, because the aluminum alloy material to be melted may be recycled waste aluminum material, a small amount of air may exist in gaps which are mutually piled up and impurities such as oil stains may remain on the surfaces of the aluminum alloy material, the inert gas needs to be continuously introduced into the aluminum alloy material in the melting process so as to reduce the oxygen content and harmful gas of the gas in the melting furnace, thereby avoiding affecting the quality of the aluminum alloy after production, but the waste gas in the melting process needs to be discharged by continuously introducing the inert gas into the melting furnace, and the discharged waste gas takes away the heat in the melting furnace, so that a large amount of heat loss in the melting furnace is caused, thereby increasing the energy consumption of the melting furnace and increasing the production cost of the aluminum alloy.
Disclosure of Invention
The invention aims to provide an aluminum alloy melting furnace and a use method thereof, which solve the following technical problems:
how to reduce the heat loss during the exhaust gas discharging in the melting process of the melting furnace.
The aim of the invention can be achieved by the following technical scheme:
An aluminum alloy melting furnace comprises a heat-insulating shell and a feeding shell, wherein the heat-insulating shell is fixedly connected with the feeding shell;
The melting assembly is arranged in the heat-insulating shell and is used for melting the aluminum alloy material;
The stirring and inflating assembly is used for inflating nitrogen into the melting assembly;
The guiding blanking assembly is used for adding the aluminum alloy material to be melted into the melting assembly and drying and preheating the aluminum alloy material;
And the filtering heat absorption component is used for filtering and absorbing heat of the discharged exhaust gas.
In an embodiment, the melting assembly comprises a melting cylinder, a mounting opening is formed in the heat-insulating shell, the melting cylinder is fixedly connected in the mounting opening, and a heating layer is fixedly connected to the outer wall of the melting cylinder.
Further, the stirring inflation assembly comprises a stirring pipe, the stirring pipe is rotationally arranged in the melting cylinder, a plurality of stirring rods are fixedly connected to the stirring pipe, the bottom of the stirring pipe is fixedly communicated with an arc-shaped pipe, a plurality of inflation holes are formed in the arc-shaped pipe, and the inflation holes face the inner wall of the melting cylinder.
Further, the guiding blanking assembly comprises a blanking pipe, the inner cavity of the feeding shell is sequentially divided into a liquid storage cavity, a material containing bin, a power cavity and a vacuum cavity from top to bottom through a supporting plate, a material containing plate and a partition plate, the vacuum cavity is communicated with the inner cavity of the heat insulation shell, one end of the blanking pipe extends into the power cavity, the other end of the blanking pipe extends into the melting cylinder, a feeding hole is formed in the upper side wall of the blanking pipe, and the feeding hole is communicated with the material containing bin;
the rotary shaft is rotatably arranged in the blanking pipe, a spiral propelling blade matched with the blanking pipe is fixedly connected to the rotary shaft, and a plurality of vent holes are formed in the spiral propelling blade.
Further, the filtering and preheating assembly comprises a rotating pipe, the liquid storage cavity is rotatably provided with the rotating pipe, a plurality of exhaust pipes are fixed on and communicated with the rotating pipe, and a plurality of exhaust holes are formed in the exhaust pipes;
A vortex tube is arranged in the liquid storage cavity, two ends of the vortex tube are respectively communicated with an air inlet tube and an air charging tube, and one end, far away from the vortex tube, of the air charging tube is communicated with a stirring tube;
And the liquid storage cavity is filled with filtrate for filtering and absorbing the waste gas, and the vortex pipe and the exhaust pipe are immersed in the filtrate.
Still further, the rotation pipe bottom runs through the baffle and extends to flourishing material intracavity, fixedly connected with rather than concentric inner tube in the rotation pipe bottom, the inner tube bottom is linked together with flourishing material intracavity, the inner tube top is opening form and is close to the rotation pipe top.
Further, the power cavity is rotatably connected with a transmission shaft, and a fourth bevel gear, a fifth bevel gear and a second guide wheel are fixedly connected to the transmission shaft;
A servo motor is fixedly connected to the supporting plate, a sixth bevel gear is fixedly connected to the output end of the servo motor, and the sixth bevel gear is meshed with the fourth bevel gear;
The bottom end of the rotating pipe is fixedly connected with a first guide wheel, and the first guide wheel is rotationally connected with a second guide wheel through a driving belt;
A third bevel gear is fixedly connected in the power cavity extending from one end of the rotating shaft, the third bevel gear is meshed with a fifth bevel gear, and a second bevel gear is fixedly connected in the melting cylinder extending from the other end of the rotating shaft;
the stirring pipe is fixedly connected with a first bevel gear, and the first bevel gear is meshed with a second bevel gear.
Still further, the feeding device also comprises a top cover, wherein the top cover is fixedly connected with a limiting block, and the feeding shell is provided with a guide groove corresponding to the limiting block;
The stirring pipe is fixedly connected with two limiting rings and is used for limiting the stirring pipe, the top end of the stirring pipe is communicated with the communication cover, and one end of the gas charging pipe, which is far away from the vortex pipe, is communicated with the communication cover;
and the top cover is fixedly connected with a hanging ring and is used for lifting the top cover through external lifting equipment.
Further, a charging hole communicated with the material containing bin is formed in the charging shell, a door frame is fixedly connected to the charging shell, and a sliding door is connected to the door frame in a sliding manner and used for plugging the charging hole;
The top of the feeding shell is connected with a vent pipe, and the vent pipe is communicated with the liquid storage cavity.
The application method of the aluminum alloy melting furnace comprises the following steps of;
the first step: starting a resistance heating wire arranged in the heating layer to heat the melting cylinder, and controlling an air inlet pipe to rapidly charge sufficient nitrogen into the melting cylinder;
And a second step of: and controlling the air inlet pipe to slowly charge nitrogen into the melting cylinder, starting the servo motor, driving the stirring pipe, the rotating shaft and the rotating pipe to rotate, and uniformly conveying the aluminum alloy materials in the storage bin into the melting cylinder for melting.
The invention has the beneficial effects that:
(1) According to the invention, nitrogen is rapidly sprayed out from the air charging hole through the air inlet pipe, the vortex-shaped pipe, the air charging pipe, the communication cover, the stirring pipe and the arc-shaped pipe, and the nitrogen sprayed out from the air charging hole is near the bottom of the melting cylinder, so that air in the melting cylinder can be effectively discharged, the oxygen content in the melting furnace is effectively reduced, and the purpose of protecting the aluminum alloy material in the melting process is achieved.
(2) According to the invention, the aluminum alloy materials in the material accommodating bin can be uniformly conveyed into the melting cylinder in the rotation process of the spiral propelling blade, and then the aluminum alloy materials are melted by heat transferred by the inner wall of the melting cylinder; the stirring pipe, the stirring rod and the arc-shaped pipe can be driven to rotate in the melting cylinder in the rotating process of the rotating shaft, and the aluminum alloy materials in the melting process can be stirred in the rotating process of the stirring rod and the arc-shaped pipe, so that the melting speed of the aluminum alloy materials is increased.
(3) According to the invention, the nitrogen continuously filled into the melting cylinder through the air filling holes can enable the gas to continuously pass through the air holes and further pass through the storage bin, the passing gas is high-temperature gas, and the high-temperature gas can effectively vaporize oil stains possibly remained on the surface of the aluminum alloy material in the blanking pipe so as to be discharged along with flowing gas, so that the quality of the aluminum alloy after melting production can be improved, and the high-temperature gas can fully preheat the aluminum alloy material in the blanking pipe so as to improve the melting speed of the aluminum alloy material after entering the melting cylinder.
(4) The waste gas discharged through the exhaust hole is spirally bubble in the filtrate in the liquid storage cavity along with the rotation of the exhaust pipe, so that the waste gas and the filtrate are fully contacted, harmful gas in the waste gas is absorbed and heat in the waste gas is absorbed through the filtrate, nitrogen entering the melting cylinder through the gas charging pipe absorbs heat in the filtrate in the process of passing through the vortex pipe, the temperature of the charged nitrogen is increased, the aim of reducing heat loss caused by the discharge of the waste gas in the melting process is fulfilled, the energy consumption of the melting furnace is reduced, and the production cost of aluminum alloy is reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of an aluminum alloy melting furnace according to the present invention;
FIG. 2 is a schematic diagram of a melting furnace for aluminum alloy according to the present invention;
FIG. 3 is an enlarged view of a partial structure of the area A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of a portion of the structure of the present invention at area B of FIG. 2;
FIG. 5 is a schematic diagram of an aluminum alloy melting furnace according to the third embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of the structure of the present invention at area C of FIG. 5;
FIG. 7 is an enlarged view of a portion of the structure of the area D of FIG. 5 in accordance with the present invention;
FIG. 8 is a schematic view of a rotary tube portion of an aluminum alloy melting furnace according to the present invention;
FIG. 9 is a schematic view showing a structure of a rotary pipe portion of an aluminum alloy melting furnace according to the present invention.
Reference numerals: 1. a heat-insulating housing; 11. a melting barrel; 12. a heating layer; 2. a feeding shell; 21. a guide groove; 23. a support plate; 24. a material containing plate; 25. a partition plate; 27. a vent pipe; 28. a door frame; 281. a sliding door; 3. a top cover; 31. a hanging ring; 32. a communication cover; 4. a stirring tube; 41. a stirring rod; 42. an arc tube; 421. an air filling hole; 43. a first bevel gear; 44. a limiting ring; 5. discharging pipes; 51. a rotating shaft; 52. spiral propelling leaves; 521. a vent hole; 53. a second bevel gear; 55. a feed inlet; 56. a third bevel gear; 6. a swirl tube; 61. an air inlet pipe; 62. an inflation tube; 7. a rotary tube; 71. an exhaust pipe; 711. an exhaust hole; 72. the first guide wheel; 73. a transmission belt; 74. an inner tube; 8. a transmission shaft; 81. a fourth bevel gear; 82. a fifth bevel gear; 83. the second guide wheel; 9. a servo motor; 91. and a sixth bevel gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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 to 9, in one embodiment, an aluminum alloy melting furnace is provided, which includes a heat insulation housing 1 and a charging housing 2, wherein the heat insulation housing 1 is fixedly connected with the charging housing 2;
The melting assembly is arranged in the heat-insulating shell 1 and is used for melting the aluminum alloy materials;
The stirring and inflating assembly is used for inflating nitrogen into the melting assembly;
The guiding blanking assembly is used for adding the aluminum alloy material to be melted into the melting assembly and drying and preheating the aluminum alloy material;
And the filtering heat absorption component is used for filtering and absorbing heat of the discharged exhaust gas.
The melting assembly comprises a melting cylinder 11, a mounting opening is formed in the heat-preserving shell 1, the melting cylinder 11 is fixedly connected in the mounting opening, and a heating layer 12 is fixedly connected to the outer wall of the melting cylinder 11.
The stirring inflation assembly comprises a stirring pipe 4, the stirring pipe 4 is rotationally arranged in the melting cylinder 11, a plurality of stirring rods 41 are fixedly connected to the stirring pipe 4, the bottom of the stirring pipe 4 is fixedly communicated with an arc-shaped pipe 42, a plurality of inflation holes 421 are formed in the arc-shaped pipe 42, and the inflation holes 421 all face the inner wall of the melting cylinder 11.
The guiding blanking assembly comprises a blanking pipe 5, an inner cavity of the feeding shell 2 is sequentially divided into a liquid storage cavity, a material containing bin, a power cavity and a vacuum cavity from top to bottom through a supporting plate 23, a material containing plate 24 and a partition plate 25, the vacuum cavity is communicated with the inner cavity of the heat preservation shell 1, one end of the blanking pipe 5 extends into the power cavity, the other end of the blanking pipe 5 extends into the melting cylinder 11, a feeding hole 55 is formed in the upper side wall of the blanking pipe 5, and the feeding hole 55 is communicated with the material containing bin;
The rotary shaft 51 arranged in the blanking pipe 5 is rotated, the rotary shaft 51 is fixedly connected with a spiral propelling blade 52 matched with the blanking pipe 5, and the spiral propelling blade 52 is provided with a plurality of vent holes 521.
The filtering and preheating assembly comprises a rotating tube 7, the rotating tube 7 is rotationally arranged in the liquid storage cavity, a plurality of exhaust pipes 71 are fixed on and communicated with the rotating tube 7, and a plurality of exhaust holes 711 are formed in the exhaust pipes 71;
a vortex tube 6 is arranged in the liquid storage cavity, two ends of the vortex tube 6 are respectively communicated with an air inlet tube 61 and an air charging tube 62, and one end, far away from the vortex tube 6, of the air charging tube 62 is communicated with the stirring tube 4;
The liquid storage cavity is filled with filtrate for filtering and absorbing the waste gas, and the vortex tube 6 and the exhaust pipe 71 are immersed in the filtrate.
The bottom end of the rotating tube 7 penetrates through the partition plate 25 and extends into the material containing cavity, an inner tube 74 concentric with the rotating tube 7 is fixedly connected in the bottom end of the rotating tube 7, the bottom end of the inner tube 74 is communicated with the material containing cavity, the top end of the inner tube 74 is open and is close to the top end of the rotating tube 7, and the liquid level of the filtered liquid does not exceed the top end of the inner tube 74.
The power cavity is rotationally connected with a transmission shaft 8, and a fourth bevel gear 81, a fifth bevel gear 82 and a second guide wheel 83 are fixedly connected to the transmission shaft 8;
The servo motor 9 is fixedly connected to the supporting plate 23, a sixth bevel gear 91 is fixedly connected to the output end of the servo motor 9, and the sixth bevel gear 91 is meshed with the fourth bevel gear 81;
The bottom end of the rotary pipe 7 is fixedly connected with a first guide wheel 72, and the first guide wheel 72 is rotationally connected with a second guide wheel 83 through a driving belt 73;
a third bevel gear 56 is fixedly connected in the power cavity extending from one end of the rotating shaft 51, the third bevel gear 56 is meshed with a fifth bevel gear 82, and a second bevel gear 53 is fixedly connected in the melting cylinder 11 extending from the other end of the rotating shaft 51;
the stirring tube 4 is fixedly connected with a first bevel gear 43, and the first bevel gear 43 is meshed with a second bevel gear 53.
The feeding device further comprises a top cover 3, a limiting block is fixedly connected to the top cover 3, and a guide groove 21 corresponding to the limiting block is formed in the feeding shell 2;
the top cover 3 is fixedly connected with the communication cover 32, the stirring pipe 4 is rotationally connected to the top cover 3, the stirring pipe 4 is fixedly connected with two limiting rings 44 for limiting the stirring pipe 4, the top end of the stirring pipe 4 is communicated with the communication cover 32, and one end of the air charging pipe 62, which is far away from the vortex pipe 6, is communicated with the communication cover 32;
the top cover 3 is fixedly connected with a hanging ring 31 for lifting the top cover 3 through external lifting equipment.
A charging hole communicated with the material containing bin is formed in the charging shell 2, a door frame 28 is fixedly connected to the charging shell 2, and a sliding door 281 is connected in a sliding manner to the door frame 28 and used for plugging the charging hole;
The top of the feeding shell 2 is connected with a vent pipe 27, and the vent pipe 27 is communicated with the liquid storage cavity.
The application method of the aluminum alloy melting furnace comprises the following steps of;
The first step: the resistance heating wire arranged in the heating layer 12 is started to heat the melting cylinder 11, the air inlet pipe 61 is controlled to rapidly charge sufficient nitrogen into the melting cylinder 11, specifically, the resistance heating wire arranged in the heating layer 12 gradually increases the temperature of the inner wall of the melting cylinder 11, the air inlet pipe 61 is externally connected with a nitrogen cylinder, the nitrogen in the nitrogen cylinder is rapidly sprayed out from the air charging hole 421 through the air inlet pipe 61, the vortex-shaped pipe 6, the air charging pipe 62, the communication cover 32, the stirring pipe 4 and the arc-shaped pipe 42, the air in the melting cylinder 11 can be effectively discharged by the nitrogen sprayed out from the air charging hole 421, the discharged air can enter the storage bin through the air vent 521 on the spiral pushing blade 52, then is discharged into the filter liquid in the liquid storage cavity through the inner pipe 74, the rotating pipe 7 and the exhaust pipe 71, and finally is discharged from the air vent pipe 27, the temperature of the air entering the lower material pipe 5 through the melting cylinder 11 gradually increases along with the temperature increase of the inner wall of the melting cylinder 11 in the process, so that the aluminum alloy material in the storage bin can be dried, and the oxygen concentration of the aluminum alloy material in the storage bin can be continuously reduced to a second oxygen concentration level when the oxygen sensor 27 is arranged in the preset oxygen sensor to continuously monitor the oxygen concentration;
And a second step of: the air inlet pipe 61 is controlled to slowly charge nitrogen into the melting cylinder 11, the servo motor 9 is started to drive the stirring pipe 4, the rotating shaft 51 and the rotating pipe 7 to rotate, aluminum alloy materials in the material accommodating bin are uniformly conveyed into the melting cylinder 11 to be melted, specifically, the servo motor 9 drives the sixth bevel gear 91 to rotate, the sixth bevel gear 91 drives the transmission shaft 8 to rotate through the fourth bevel gear 81, the transmission shaft 8 drives the third bevel gear 56 to rotate through the fifth bevel gear 82, the third bevel gear 56 drives the spiral propelling blade 52 to rotate through the blanking pipe 5, and the aluminum alloy materials in the material accommodating bin can be uniformly conveyed into the melting cylinder 11 in the rotating process of the spiral propelling blade 52, and then the aluminum alloy materials are melted through heat transferred by the inner wall of the melting cylinder 11;
in synchronization, the rotating shaft 51 can drive the first bevel gear 43 to rotate through the second bevel gear 53 in the rotating process, so as to drive the stirring pipe 4, the stirring rod 41 and the arc-shaped pipe 42 to rotate in the melting cylinder 11, the stirring rod 41 and the arc-shaped pipe 42 can stir the aluminum alloy materials in the melting process in the rotating process, so that the melting speed of the aluminum alloy materials is increased, and the nitrogen continuously discharged through the air charging hole 421 can effectively discharge the oxygen reserved between gaps on the aluminum alloy materials at the moment, so that the oxidized amount of the aluminum alloy materials in the melting process is reduced;
In the process of feeding the aluminum alloy materials in the material accommodating bin by the spiral propelling blades 52, the nitrogen continuously filled in the melting cylinder 11 through the air filling holes 421 can enable the gas to continuously pass through the air holes 521 and further pass through the material accommodating bin, the gas passing through the material accommodating bin at the moment is high-temperature gas, and the high-temperature gas can effectively gasify oil stains possibly remained on the surface of the aluminum alloy materials in the material feeding pipe 5 so as to be discharged along with the flowing gas, so that the quality of the aluminum alloy after the melting production can be improved, and the high-temperature gas can fully preheat the aluminum alloy materials in the material feeding pipe 5 so as to improve the melting speed of the aluminum alloy materials after entering the melting cylinder 11;
In step, the gas entering the storage bin enters the inner tube 74 through the bottom end of the inner tube 74, enters the exhaust tube 71 through the rotating tube 7 and is discharged through the exhaust hole 711, in the process, the transmission shaft 8 drives the second guide wheel 83 to rotate, the second guide wheel 83 drives the first guide wheel 72 to rotate through the transmission belt 73, and then the rotating tube 7 and the exhaust tube 71 are driven to rotate, so that the exhaust gas discharged through the exhaust hole 711 spirally forms bubbles in the filtrate in the liquid storage cavity along with the rotation of the exhaust tube 71, the sufficient contact between the exhaust gas and the filtrate can be ensured, harmful gas in the exhaust gas is absorbed through the filtrate and the heat in the filtrate is absorbed, the nitrogen entering the melting cylinder 11 through the gas charging tube 62 absorbs the heat in the filtrate in the process of passing through the vortex tube 6, the purpose of reducing the heat loss caused by the exhaust gas discharge in the melting process is achieved, the energy consumption of the melting furnace is reduced, the production cost of aluminum alloy is required, the filtrate is a solution with a higher boiling point, the harmful gas can be absorbed, for example, the lithium carbonate solution can absorb the harmful gas, the heat in the lithium solution is increased, the temperature of the waste gas is further heated through the vortex tube 6, and the effect of the heat absorption effect of the waste gas is improved.
The foregoing describes one embodiment of the present invention in detail, but the disclosure is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. The aluminum alloy melting furnace is characterized by comprising a heat-insulating shell (1) and a feeding shell (2), wherein the heat-insulating shell (1) is fixedly connected with the feeding shell (2);
the melting assembly is arranged in the heat-insulating shell (1) and is used for melting the aluminum alloy materials;
The stirring and inflating assembly is used for inflating nitrogen into the melting assembly;
The guiding blanking assembly is used for adding the aluminum alloy material to be melted into the melting assembly and drying and preheating the aluminum alloy material;
And the filtering heat absorption component is used for filtering and absorbing heat of the discharged exhaust gas.
2. An aluminum alloy melting furnace as claimed in claim 1, wherein the melting assembly comprises a melting cylinder (11), a mounting opening is formed in the heat-insulating shell (1), the melting cylinder (11) is fixedly connected in the mounting opening, and a heating layer (12) is fixedly connected to the outer wall of the melting cylinder (11).
3. An aluminum alloy melting furnace according to claim 2, wherein the stirring and air charging assembly comprises a stirring pipe (4), the stirring pipe (4) is rotatably arranged in the melting cylinder (11), a plurality of stirring rods (41) are fixedly connected to the stirring pipe (4), an arc-shaped pipe (42) is fixedly arranged at the bottom of the stirring pipe (4) and communicated with the stirring pipe, a plurality of air charging holes (421) are formed in the arc-shaped pipe (42), and the air charging holes (421) face the inner wall of the melting cylinder (11).
4. An aluminum alloy melting furnace according to claim 3, wherein the guiding blanking component comprises a blanking pipe (5), the inner cavity of the feeding shell (2) is divided into a liquid storage cavity, a material containing bin, a power cavity and a vacuum cavity from top to bottom in sequence through a supporting plate (23), a material containing plate (24) and a partition plate (25), the vacuum cavity is communicated with the inner cavity of the heat insulation shell (1), one end of the blanking pipe (5) extends into the power cavity, the other end of the blanking pipe (5) extends into the melting cylinder (11), a feeding hole (55) is formed in the upper side wall of the blanking pipe (5), and the feeding hole (55) is communicated with the material containing bin;
the rotary shaft (51) arranged in the blanking pipe (5) is rotated, the rotary shaft (51) is fixedly connected with a spiral propelling blade (52) which is matched with the blanking pipe (5), and a plurality of vent holes (521) are formed in the spiral propelling blade (52).
5. An aluminum alloy melting furnace according to claim 4, wherein the filtering preheating assembly comprises a rotary pipe (7), the rotary pipe (7) is rotationally arranged in the liquid storage cavity, a plurality of exhaust pipes (71) are fixed on and communicated with the rotary pipe (7), and a plurality of exhaust holes (711) are formed in the exhaust pipes (71);
A vortex tube (6) is arranged in the liquid storage cavity, two ends of the vortex tube (6) are respectively communicated with an air inlet tube (61) and an air charging tube (62), and one end, far away from the vortex tube (6), of the air charging tube (62) is communicated with the stirring tube (4);
The liquid storage cavity is filled with filtrate for filtering and absorbing the waste gas, and the vortex tube (6) and the exhaust tube (71) are immersed in the filtrate.
6. An aluminum alloy melting furnace according to claim 5, wherein the bottom end of the rotating tube (7) extends into the material containing cavity through the partition plate (25), an inner tube (74) concentric with the rotating tube (7) is fixedly connected in the bottom end of the rotating tube, the bottom end of the inner tube (74) is communicated with the material containing cavity, and the top end of the inner tube (74) is open and is close to the top end of the rotating tube (7).
7. An aluminum alloy melting furnace according to claim 6, wherein the power cavity is rotatably connected with a transmission shaft (8), and a fourth bevel gear (81), a fifth bevel gear (82) and a second guide wheel (83) are fixedly connected to the transmission shaft (8);
a servo motor (9) is fixedly connected to the supporting plate (23), a sixth bevel gear (91) is fixedly connected to the output end of the servo motor (9), and the sixth bevel gear (91) is meshed with the fourth bevel gear (81);
the bottom end of the rotating pipe (7) is fixedly connected with a first guide wheel (72), and the first guide wheel (72) is rotationally connected with a second guide wheel (83) through a transmission belt (73);
A third bevel gear (56) is fixedly connected in the power cavity from one end of the rotating shaft (51), the third bevel gear (56) is meshed with a fifth bevel gear (82), and a second bevel gear (53) is fixedly connected in the melting cylinder (11) from the other end of the rotating shaft (51);
The stirring pipe (4) is fixedly connected with a first bevel gear (43), and the first bevel gear (43) is meshed with a second bevel gear (53).
8. The aluminum alloy melting furnace according to claim 7, further comprising a top cover (3), wherein a limiting block is fixedly connected to the top cover (3), and a guide groove (21) corresponding to the limiting block is formed in the feeding shell (2);
the stirring device is characterized in that a communication cover (32) is fixedly connected to the top cover (3), the stirring pipe (4) is rotationally connected to the top cover (3), two limiting rings (44) are fixedly connected to the stirring pipe (4) and used for limiting the stirring pipe (4), the top end of the stirring pipe (4) is communicated with the communication cover (32), and one end, far away from the vortex-shaped pipe (6), of the inflating pipe (62) is communicated with the communication cover (32);
And the top cover (3) is fixedly connected with a hanging ring (31) for lifting the top cover (3) through external lifting equipment.
9. The aluminum alloy melting furnace according to claim 8, wherein a charging hole communicated with the material accommodating bin is formed in the charging shell (2), a door frame (28) is fixedly connected to the charging shell (2), and a sliding door (281) is slidably connected to the door frame (28) and used for plugging the charging hole;
The top of the feeding shell (2) is connected with a vent pipe (27), and the vent pipe (27) is communicated with the liquid storage cavity.
10. A method of using an aluminum alloy melting furnace as recited in any one of claims 1 to 9, characterized by the steps of;
The first step: starting a resistance heating wire arranged in the heating layer (12) to heat the melting cylinder (11), and controlling the air inlet pipe (61) to rapidly charge sufficient nitrogen into the melting cylinder (11);
And a second step of: the air inlet pipe (61) is controlled to slowly charge nitrogen into the melting cylinder (11), the servo motor (9) is started, the stirring pipe (4), the rotating shaft (51) and the rotating pipe (7) are driven to rotate, and aluminum alloy materials in the material accommodating bin are evenly conveyed into the melting cylinder (11) to be melted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410636861.2A CN118361957A (en) | 2024-05-22 | 2024-05-22 | Aluminum alloy melting furnace and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410636861.2A CN118361957A (en) | 2024-05-22 | 2024-05-22 | Aluminum alloy melting furnace and use method thereof |
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| Publication Number | Publication Date |
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| CN118361957A true CN118361957A (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410636861.2A Pending CN118361957A (en) | 2024-05-22 | 2024-05-22 | Aluminum alloy melting furnace and use method thereof |
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| Country | Link |
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| CN (1) | CN118361957A (en) |
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- 2024-05-22 CN CN202410636861.2A patent/CN118361957A/en active Pending
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