CN113375458B - Aluminum alloy melting refining device and refining method thereof - Google Patents

Aluminum alloy melting refining device and refining method thereof Download PDF

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Publication number
CN113375458B
CN113375458B CN202110471737.1A CN202110471737A CN113375458B CN 113375458 B CN113375458 B CN 113375458B CN 202110471737 A CN202110471737 A CN 202110471737A CN 113375458 B CN113375458 B CN 113375458B
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aluminum alloy
box
melting
refining
tank
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CN113375458A (en
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蒋晔
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Suzhou Xindeli Dynamo Electric Technology Co ltd
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Suzhou Xindeli Dynamo Electric Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/005—Preliminary treatment of scrap
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/0806—Charging or discharging devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases, or liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B2014/002—Smelting process, e.g. sequences to melt a specific material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B2014/0837—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/01—Charges containing mainly non-ferrous metals
    • F27M2001/012—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/13—Smelting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
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  • Manufacturing & Machinery (AREA)
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  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses an aluminum alloy melting refining device and a refining method thereof, which relate to the related field of aluminum alloy refining and aim to solve the problem that a large number of air holes are easily generated on the surface of a finished product when aluminum alloy is cast after melting refining in the prior art.

Description

Aluminum alloy melting refining device and refining method thereof
Technical Field
The invention relates to the field of aluminum alloy refining, in particular to an aluminum alloy melting refining device and a refining method thereof.
Background
With the advancement of society, the science and technology of aluminum alloys is increasing, and aluminum alloys are very important metal materials, and the prior aluminum alloys often need to be refined by using a melting refining device.
After the existing aluminum alloy melting and refining device is used, a large number of air holes are remained on the surface of an aluminum alloy product when the aluminum alloy product is re-cast, so that the quality of a cast finished product is affected; therefore, the market is in urgent need to develop an aluminum alloy melting refining device to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide an aluminum alloy melting and refining device, which solves the problem that a large number of air holes are easily generated on the surface of a finished product when casting aluminum alloy after melting and refining.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an aluminum alloy melting refining device, includes the refining box, the inside of refining box is provided with ceramic foam filter, ceramic foam filter is fixed on the internal face of refining box, one side of ceramic foam filter is provided with the nozzle, the nozzle is provided with a plurality of, the upper end of nozzle is provided with keeps off the gas board, the upper end that keeps off the gas board is provided with rotates the shower nozzle, it is connected through the round bar with keeping off the gas board to rotate the shower nozzle, the upper end that rotates the shower nozzle is provided with the gas tank, one side of gas tank is provided with the intake pipe, gas tank and rotation shower nozzle fixed connection.
Preferably, the upper end of gas tank is provided with the cooling tank, the inside of cooling tank is provided with the inner box, be provided with the heat-conducting plate between inner box and the cooling tank, the heat-conducting plate is provided with a plurality of, adjacent two be provided with cooling oil between the heat-conducting plate, the inside of inner box is provided with stirs the material pole, one side of stirring the material pole is provided with the second motor, the second motor passes through the coupling joint with stirring the material pole.
Preferably, the upper end of cooling box is provided with the connecting plate, the inside of connecting plate is provided with electric slide, electric slide's inside is provided with electric slide, electric slide sets up to electric connection with electric slide, be provided with the axis of rotation on the electric slide, be provided with the stirring plate in the axis of rotation, the stirring plate sets up to circular arc platy.
Preferably, one side of the connecting plate is provided with a melting tank, a rotating rod is arranged in the melting tank, a material distributing plate is arranged on the rotating rod, two material distributing plates are arranged, the material distributing plates are connected with the rotating rod through manual arc welding, a first motor is arranged at the lower end of the rotating rod, and the first motor is connected with the rotating rod through a coupling.
Preferably, one side of the melting tank is provided with a fixed block, the upper end of the fixed block is provided with an igniter, the upper end of the igniter is provided with a feeding pipe, the feeding pipes are provided with a plurality of feeding pipes, the feeding pipes are connected with the melting tank through manual arc welding, a timing feeding valve is arranged on the feeding pipes, and the timing feeding valve is fixedly connected with the feeding pipes.
Preferably, the upper end of melting case is provided with the pretreatment case, the inside of pretreatment case is provided with the washing chamber, the lower extreme of washing chamber is provided with first flap valve, first flap valve and pretreatment case fixed connection, be provided with the hole that leaks on the first flap valve, the hole that leaks is provided with a plurality of, the hole that leaks sets up to the round hole form, the degree of depth of hole that leaks is set to unanimously with the thickness of first flap valve.
Preferably, the lower extreme of first flap valve is provided with the stoving chamber, the inside in stoving chamber is provided with the drying apparatus, the drying apparatus is provided with two, drying apparatus and pretreatment case fixed connection, the lower extreme of drying apparatus is provided with the second flap valve, second flap valve and pretreatment case fixed connection.
A refining method of an aluminum alloy melt refining apparatus, comprising the steps of:
step one: the user can send the aluminum alloy waste into the pretreatment box through the feed pipe, and clean water is introduced through the feed pipe to wash the aluminum alloy waste in the cleaning cavity, the washed clean water can enter the drying cavity through the water leakage hole and is discharged through the drain pipe, after a period of time, the first flap valve is opened, the cleaned aluminum alloy waste is sent into the drying cavity, and the aluminum alloy waste is dried through the dryer, and after a period of time, the waste can enter the melting box;
step two: the aluminum alloy waste entering the melting tank is heated under the action of an igniter, a covering agent is added to a plurality of charging pipes respectively, the covering agent is added to the aluminum alloy waste at intervals through a timing feeding valve, the internal temperature of the melting tank is continuously increased along with the action of the igniter, so that the aluminum alloy waste is melted into aluminum alloy melt, after a period of time, an electric sliding block is driven to move in an electric slideway, the aluminum alloy melt can enter the inner tank through a first blanking pipe, heat conduction treatment is carried out through cooling oil and a heat conducting plate between a cooling tank and the inner tank, the temperature of the aluminum alloy melt is kept between 630 ℃ and 650 ℃, and the aluminum alloy melt is fed into the refining tank through a second blanking pipe;
step three: the aluminum alloy melt entering the refining box rotates through the rotating spray head, argon or nitrogen is sprayed, and a small amount of chlorine is sprayed through the spray nozzle, so that small bubbles are formed on the surface of the aluminum alloy melt, oxygen and oxide inclusions in the melt are carried away through the diffusion and adsorption of the small bubbles, sodium ions and lithium ions of the melt are reduced, and after a period of time, the aluminum alloy melt after refining is discharged from the discharge pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the ceramic foam filter plate, the spray nozzle, the rotary spray nozzle and the air baffle, when a user uses the aluminum alloy melting refining device, the user can rotate through the rotary spray nozzle to spray argon or nitrogen and spray a small amount of chlorine through the spray nozzle, so that small bubbles are formed on the surface of the aluminum alloy melting liquid, oxygen and oxide inclusions in the melt are carried away through the diffusion and adsorption of the small bubbles, so that the concentration of sodium ions and lithium ions in the melt is reduced, meanwhile, oxide inclusions in the melt can be further removed through the arrangement of the ceramic foam filter plate, and finally, the linearly sprayed argon or nitrogen can be blocked through the arrangement of the air baffle, so that the argon or nitrogen can be sprayed in a scattered state, and the problem that a large number of air holes are easily generated on the surface of a finished product when the aluminum alloy is cast after melting refining can be solved to a certain extent;
2. according to the aluminum alloy melting refining device, through the arrangement of the cooling box, the inner box and the heat conducting plate, a user can conduct heat conduction treatment through cooling oil and the heat conducting plate arranged between the cooling box and the inner box in the process of using the aluminum alloy melting refining device, so that the temperature of aluminum alloy melt can be kept at a proper temperature, and further the phenomena of shrinkage cavity and shrinkage porosity defect on the surface of a cast finished product are prevented;
3. according to the aluminum alloy melting refining device, through the arrangement of the feeding pipe, the timing feeding valve, the material dividing plate and the first motor, a user can cover the covering agent in the feeding pipe on the surface of aluminum alloy waste in the whole melting stage through the timing feeding valve in the process of using the aluminum alloy melting refining device, and the material dividing plate is driven to rotate through the first motor, so that the phenomenon of high local temperature in the melting box is prevented, and the melting effect of the melting box can be improved to a certain extent.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view showing the internal structure of the pretreatment tank of the present invention;
FIG. 3 is a schematic view showing the internal structure of the melting tank of the present invention;
FIG. 4 is a schematic view showing the internal structure of the cooling tank of the present invention;
fig. 5 is a schematic view showing the internal structure of the refining box of the present invention.
In the figure: 1. a pretreatment box; 2. a feed pipe; 3. cleaning the cavity; 4. a first flap valve; 5. a water leakage hole; 6. a drying chamber; 7. a baffle; 8. a dryer; 9. a second flap valve; 10. a drain pipe; 11. a melting tank; 12. a rotating lever; 13. a material dividing plate; 14. a first motor; 15. a fixed block; 16. an igniter; 17. a feeding tube; 18. a timing feed valve; 19. a connecting plate; 20. an electric slideway; 21. an electric slide block; 22. a rotating shaft; 23. a kick-out plate; 24. a first blanking pipe; 25. a first electrically operated valve; 26. a cooling box; 27. an inner box; 28. a heat conductive plate; 29. a stirring rod; 30. a second motor; 31. a second blanking pipe; 32. a second electrically operated valve; 33. a refining box; 34. ceramic foam filter plates; 35. a nozzle; 36. a gas storage tank; 37. rotating the spray head; 38. a gas baffle; 39. a discharge pipe; 40. and a third electrically operated valve.
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.
Referring to fig. 1-5, an embodiment of the present invention is provided: the utility model provides an aluminum alloy melting refining device, including the refining tank 33, the inside of refining tank 33 is provided with ceramic foam filter 34, ceramic foam filter 34 is fixed on the internal face of refining tank 33, one side of ceramic foam filter 34 is provided with nozzle 35, nozzle 35 is provided with a plurality of, the upper end of nozzle 35 is provided with keeps off gas plate 38, the upper end that keeps off gas plate 38 is provided with rotates shower nozzle 37, it is connected through the round bar with keeping off gas plate 38 to rotate shower nozzle 37, the upper end that rotates shower nozzle 37 is provided with gas storage box 36, one side of gas storage box 36 is provided with the intake pipe, gas storage box 36 and rotation shower nozzle 37 fixed connection, the lower extreme of refining tank 33 is provided with row material pipe 39, be provided with third motorised valve 40 on the row material pipe 39.
Further, the upper end of the gas storage tank 36 is provided with the cooling tank 26, the inside of the cooling tank 26 is provided with the inner tank 27, a plurality of heat-conducting plates 28 are arranged between the inner tank 27 and the cooling tank 26, cooling oil is arranged between two adjacent heat-conducting plates 28, the inside of the inner tank 27 is provided with a stirring rod 29, one side of the stirring rod 29 is provided with a second motor 30, the second motor 30 is connected with the stirring rod 29 through a coupling, a second blanking pipe 31 is arranged between the cooling tank 26 and a refining tank 33, and a second electric valve 32 is arranged on the second blanking pipe 31.
Further, the upper end of cooling tank 26 is provided with connecting plate 19, the inside of connecting plate 19 is provided with electric slide 20, the inside of electric slide 20 is provided with electric slider 21, electric slider 21 and electric slide 20 set up to electric connection, be provided with axis of rotation 22 on the electric slider 21, be provided with the deflector 23 on the axis of rotation 22, deflector 23 sets up to circular arc platy, be provided with first unloading pipe 24 between connecting plate 19 and the cooling tank 26, be provided with first motorised valve 25 on the first unloading pipe 24, first motorised valve 25 and first unloading pipe 24 fixed connection.
Further, a melting tank 11 is arranged on one side of the connecting plate 19, a rotating rod 12 is arranged in the melting tank 11, two material separating plates 13 are arranged on the rotating rod 12, the material separating plates 13 are connected with the rotating rod 12 through manual arc welding, a first motor 14 is arranged at the lower end of the rotating rod 12, and the first motor 14 is connected with the rotating rod 12 through a coupling.
Further, a fixed block 15 is arranged on one side of the melting tank 11, an igniter 16 is arranged at the upper end of the fixed block 15, a plurality of feeding pipes 17 are arranged at the upper end of the igniter 16, the feeding pipes 17 are connected with the melting tank 11 through manual arc welding, a timing feeding valve 18 is arranged on the feeding pipes 17, and the timing feeding valve 18 is fixedly connected with the feeding pipes 17.
Further, the upper end of melting case 11 is provided with pretreatment case 1, and the inside of pretreatment case 1 is provided with washs chamber 3, and the lower extreme of wasing chamber 3 is provided with first flap valve 4, first flap valve 4 and pretreatment case 1 fixed connection, is provided with hole 5 that leaks on the first flap valve 4, and hole 5 that leaks is provided with a plurality of, and hole 5 that leaks sets up to the round hole form, and the degree of depth of hole 5 that leaks is consistent with the thickness setting of first flap valve 4, and the upper end of pretreatment case 1 is provided with inlet pipe 2, and inlet pipe 2 is connected through manual arc welding with pretreatment case 1.
Further, the lower extreme of first flap valve 4 is provided with stoving chamber 6, the inside of stoving chamber 6 is provided with drying apparatus 8, drying apparatus 8 is provided with two, drying apparatus 8 and pretreatment tank 1 fixed connection, the lower extreme of drying apparatus 8 is provided with second flap valve 9, second flap valve 9 and pretreatment tank 1 fixed connection, the upper end of drying apparatus 8 is provided with baffle 7, baffle 7 is provided with two, baffle 7 sets up to "L" form of falling, one side of second flap valve 9 is provided with drain pipe 10, drain pipe 10 passes through manual arc welding with pretreatment tank 1 and is connected.
A refining method of an aluminum alloy melt refining apparatus, comprising the steps of:
step one: the user can wash out the aluminum alloy waste inside the cleaning cavity 3 by sending the aluminum alloy waste into the pretreatment cavity 1 through the feeding pipe 2 and introducing clean water through the feeding pipe 2, the washed clean water can enter the inside of the drying cavity 6 through the water leakage hole 5 and is discharged through the water discharge pipe 10, after a period of time, the first flap valve 4 is opened, the cleaned aluminum alloy waste is sent into the inside of the drying cavity 6, the aluminum alloy waste is dried through the dryer 8, and after a period of time, the waste can enter the inside of the melting box 11;
step two: the aluminum alloy scrap entering the melting tank 11 is subjected to heating treatment under the action of the igniter 16, and the covering agent is added to the aluminum alloy scrap at intervals by adding the covering agent to the plurality of charging pipes 17 respectively, the temperature of the melting tank 11 is continuously raised with the action of the igniter 16 so that the aluminum alloy scrap is melted into aluminum alloy melt, and after a period of time, the electric slide block 21 is driven to move in the electric slide way 20 so that the aluminum alloy melt can enter the interior of the inner tank 27 through the first blanking pipe 24, and heat conduction treatment is performed through cooling oil between the cooling tank 26 and the inner tank 27 and the heat conducting plate 28 so that the temperature of the aluminum alloy melt is kept at 630 ℃ to 650 ℃ and the aluminum alloy melt is fed into the interior of the refining tank 33 through the second blanking pipe 31;
step three: the aluminum alloy melt entering the refining box 33 rotates through the rotating spray nozzle 37, argon or nitrogen is sprayed, and a small amount of chlorine is sprayed through the spray nozzle 35, so that small bubbles are formed on the surface of the aluminum alloy melt, oxygen and oxide inclusions in the melt are carried away through the diffusion and adsorption of the small bubbles, sodium ions and lithium ions of the melt are reduced, and after a period of time, the refined aluminum alloy melt can be discharged from the discharge pipe 39.
Working principle: when in use, firstly, the whole aluminum alloy melting and refining device is checked, after the user confirms that the checking is correct, the aluminum alloy melting and refining device can be started to be used, the user can send aluminum alloy waste into the pretreatment box 1 through the feeding pipe 2 and clean water is introduced into the pretreatment box through the feeding pipe 2 to wash the aluminum alloy waste in the cleaning cavity 3, the washed clean water can enter the drying cavity 6 through the water leakage hole 5 and is discharged through the water discharge pipe 10, after a period of time, the first flap valve 4 is opened, the washed aluminum alloy waste is sent into the drying cavity 6 and is dried through the dryer 8, after a period of time, the waste can enter the melting box 11, the aluminum alloy waste entering the melting box 11 can be heated under the action of the igniter 16, and the covering agent is added into the plurality of feeding pipes 17 respectively, the covering agent is added to the aluminum alloy scrap at intervals by the timing feeding valve 18, the internal temperature of the melting tank 11 is continuously raised with the action of the igniter 16, so that the aluminum alloy scrap is melted into an aluminum alloy melt, after a while, the electric slider 21 is driven to move inside the electric slideway 20, so that the aluminum alloy melt can enter the inside of the inner tank 27 through the first blanking pipe 24, and the heat conduction treatment is performed by the cooling oil between the cooling tank 26 and the inner tank 27 and the heat conduction plate 28, so that the temperature of the aluminum alloy melt is kept at 630 ℃ to 650 ℃ and is sent into the inside of the refining tank 33 through the second blanking pipe 31, the aluminum alloy melt entering the inside of the refining tank 33 is rotated by the rotating nozzle 37, and argon or nitrogen gas is ejected, and a small amount of chlorine gas is ejected through the nozzle 35, therefore, small bubbles are formed on the surface of the aluminum alloy melt, oxygen and oxide inclusions in the melt are carried away through the diffusion and adsorption of the small bubbles, so that sodium ions and lithium ions of the melt are reduced, after a period of time, the refined aluminum alloy melt can be discharged from the discharge pipe 39, a user can cover the surface of aluminum alloy waste in the whole melting stage by using the timing feeding valve 18 to cover the covering agent in the feeding pipe 17, the first motor 14 drives the distributing plate 13 to rotate, and therefore the phenomenon of local temperature increase in the interior of the melting box 11 is prevented, and the melting effect of the melting box 11 can be improved to a certain extent.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. An aluminum alloy melting refining apparatus comprising a refining box (33), characterized in that: the inside of the refining box (33) is provided with a ceramic foam filter plate (34), the ceramic foam filter plate (34) is fixed on the inner wall surface of the refining box (33), one side of the ceramic foam filter plate (34) is provided with a nozzle (35), the nozzle (35) is provided with a plurality of nozzles, the upper end of the nozzle (35) is provided with a gas baffle plate (38), the upper end of the gas baffle plate (38) is provided with a rotary spray head (37), the rotary spray head (37) is connected with the gas baffle plate (38) through a round bar, the upper end of the rotary spray head (37) is provided with a gas storage box (36), one side of the gas storage box (36) is provided with an air inlet pipe, the gas storage box (36) is fixedly connected with the rotary spray head (37), the upper end of the gas storage box (36) is provided with a cooling box (26), the inside of the cooling box (26) is provided with an inner box (27), a heat conducting plate (28) is arranged between the inner box (27) and the cooling box (26), the heat conducting plate (28) is provided with a plurality of adjacent motors (27), the two stirring rods (29) are arranged between the two stirring rods (29) and the two stirring rods (29) are connected with one side of the two stirring rods (30), the upper end of the cooling box (26) is provided with a connecting plate (19), the inside of the connecting plate (19) is provided with an electric slide way (20), the inside of the electric slide way (20) is provided with an electric slide block (21), the electric slide block (21) and the electric slide way (20) are electrically connected, a rotating shaft (22) is arranged on the electric slide block (21), a stirring plate (23) is arranged on the rotating shaft (22), the stirring plate (23) is arranged in an arc plate shape, one side of the connecting plate (19) is provided with a melting box (11), the inside of the melting box (11) is provided with a rotating rod (12), the rotating rod (12) is provided with a distributing plate (13), the distributing plate (13) is connected with the rotating rod (12) through manual arc welding, the lower end of the rotating rod (12) is provided with a first motor (14), the first motor (14) is connected with the rotating rod (12) through a coupler, one side of the melting box (11) is provided with a fixed block (15), the fixed block (16) is provided with a plurality of ignition tubes (17) on the fixed block (16), and the ignition tubes (17) are arranged on the fixed block (16), the feeding pipe (17) is connected with the melting tank (11) through manual arc welding, a timing feeding valve (18) is arranged on the feeding pipe (17), and the timing feeding valve (18) is fixedly connected with the feeding pipe (17).
2. An aluminum alloy melting and refining apparatus as set forth in claim 1, wherein: the upper end of melting case (11) is provided with pretreatment tank (1), the inside of pretreatment tank (1) is provided with washs chamber (3), the lower extreme of wasing chamber (3) is provided with first flap valve (4), first flap valve (4) and pretreatment tank (1) fixed connection, be provided with on first flap valve (4) and leak hole (5), leak hole (5) are provided with a plurality of, leak hole (5) and set up to round hole form, the degree of depth of leaking hole (5) is set up to unanimously with the thickness of first flap valve (4).
3. An aluminum alloy melting and refining apparatus as set forth in claim 2, wherein: the lower extreme of first flap valve (4) is provided with stoving chamber (6), the inside of stoving chamber (6) is provided with drying apparatus (8), drying apparatus (8) are provided with two, drying apparatus (8) and pretreatment tank (1) fixed connection, the lower extreme of drying apparatus (8) is provided with second flap valve (9), second flap valve (9) and pretreatment tank (1) fixed connection.
4. A refining method of an aluminum alloy melt-refining apparatus, based on any one of claims 1 to 3, characterized by comprising the steps of:
step one: the user can wash out the aluminum alloy waste inside the cleaning cavity (3) by sending the aluminum alloy waste into the pretreatment cavity (1) through the feeding pipe (2) and introducing clean water through the feeding pipe (2), the washed clean water can enter the inside of the drying cavity (6) through the water leakage hole (5) and is discharged through the water discharge pipe (10), after a period of time, the first flap valve (4) is opened, the washed aluminum alloy waste is sent into the inside of the drying cavity (6), the aluminum alloy waste is dried through the dryer (8), and after a period of time, the waste can enter the inside of the melting box (11);
step two: the aluminum alloy waste entering the melting tank (11) is subjected to heating treatment under the action of an igniter (16), and a covering agent is added to the aluminum alloy waste at intervals through a timing feeding valve (18) by adding the covering agent to a plurality of feeding pipes (17), so that the temperature of the melting tank (11) is continuously increased along with the action of the igniter (16) to enable the aluminum alloy waste to be melted into aluminum alloy melt, and after a period of time, the electric sliding block (21) is driven to move in the electric sliding way (20), so that the aluminum alloy melt can enter the inner box (27) through a first blanking pipe (24), and heat conduction treatment is carried out through cooling oil and a heat conducting plate (28) between the cooling tank (26) and the inner box (27), so that the temperature of the aluminum alloy melt is kept at 630-650 ℃, and the aluminum alloy melt is fed into the refining tank (33) through a second blanking pipe (31);
step three: the aluminum alloy melt entering the refining box (33) rotates through the rotating spray head (37), argon or nitrogen is sprayed, and a small amount of chlorine is sprayed through the spray nozzle (35), so that small bubbles are formed on the surface of the aluminum alloy melt, oxygen and oxide inclusions in the melt are carried away through the diffusion and adsorption of the small bubbles, sodium ions and lithium ions of the melt are reduced, and after a period of time, the refined aluminum alloy melt can be discharged from the discharge pipe (39).
CN202110471737.1A 2021-07-16 2021-07-16 Aluminum alloy melting refining device and refining method thereof Active CN113375458B (en)

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Publication number Priority date Publication date Assignee Title
GB1428146A (en) * 1972-09-18 1976-03-17 Aluminum Co Of America Purification of aluminium
JP3668081B2 (en) * 1998-12-25 2005-07-06 株式会社神戸製鋼所 Method for refining molten aluminum alloy and flux for refining molten aluminum alloy
JP3740131B2 (en) * 2003-03-13 2006-02-01 株式会社神戸製鋼所 Refining method for molten aluminum alloy and refining flux for molten aluminum alloy
CN103103402B (en) * 2012-12-11 2016-05-18 芜湖恒坤汽车部件有限公司 The smelting preparation method of a kind of static material end spraying aluminium alloy extrusions
CN103103416B (en) * 2012-12-11 2016-12-07 黄娜茹 A kind of smelting preparation method of heat insulated shape bar of aluminum alloy
CN107208183B (en) * 2015-02-16 2019-10-15 湖南斯瑞摩科技有限公司 Production line based on magnesium alloy waste material production national standard magnesium alloy ingot

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