CN107779611A - A kind of melting furnace for possessing refining chamber - Google Patents

A kind of melting furnace for possessing refining chamber Download PDF

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Publication number
CN107779611A
CN107779611A CN201610722190.7A CN201610722190A CN107779611A CN 107779611 A CN107779611 A CN 107779611A CN 201610722190 A CN201610722190 A CN 201610722190A CN 107779611 A CN107779611 A CN 107779611A
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CN
China
Prior art keywords
refining chamber
stove
chamber
outer covering
possessing
Prior art date
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Withdrawn
Application number
CN201610722190.7A
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Chinese (zh)
Inventor
张宗发
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610722190.7A priority Critical patent/CN107779611A/en
Publication of CN107779611A publication Critical patent/CN107779611A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/066—Treatment of circulating aluminium, e.g. by filtration
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The invention discloses a kind of melting furnace for possessing refining chamber, including stove outer covering, stove inner casing is provided with the inside of the stove outer covering, electric heating layer is provided between stove outer covering and stove inner casing, stove inner housing inner is provided with baffle plate, the inner space of stove inner casing is divided into two parts by the baffle plate, wherein top is divided into melting chamber, bottom is divided into refining chamber, charge pipe is provided with above stove outer covering, the charge pipe connects through stove outer covering and with melting chamber, connecting tube is provided with the outside of stove outer covering, drainage conduit, air inlet pipe, downtake pipe, wherein, the connecting tube connection melting chamber and refining chamber, the drainage conduit, air inlet pipe all connects exterior space and refining chamber.The present invention is provided with refining chamber, by toward mixed gas is passed through in the aluminium liquid in refining chamber, reaching aluminum oxide and hydrogen in removing aluminium liquid, improving the quality of aluminium liquid, be advantageous to subsequent technique, and is additionally provided with exhaust gas cleaner, improves working environment.

Description

A kind of melting furnace for possessing refining chamber
Technical field
The present invention relates to a kind of metallurgical plant, and in particular to a kind of melting furnace for possessing refining chamber.
Background technology
Door and window as in people's daily life often in contact with to article, not only play and keep out wind and rain, be heat-insulated, insulating against sound, adopting Light, ventilation etc. act on, but also are the important components of architectural image, and their shape, size, color, moulding etc. are to building Building the moulded of thing has critically important influence.As the improvement of people's living standards, people are more next to the demand of door and window Bigger, the requirement to door and window is also more and more diversified.
Aluminum alloy doors and windows are an important branch of door and window, aluminum alloy doors and windows refer to use aluminum alloy extrusion section bar for frame, The door and window that stile, fan material make.Aluminum alloy doors and windows are because having the characteristics that attractive in appearance, sealing, intensity is high is widely used.Aluminium alloy The section bar and glass style of door and window are divided into glazing bar style and flower glass style, wherein, glazing bar style is based on aluminium is thick, style is sedate Characteristic is wanted, for flower glass style with aluminium various shapes, style vivaciously for main characteristics, style has lattice, ice sculpture, low relief, brilliant shellfish etc..
The first procedure is exactly blanking in the aluminum alloy doors and windows technological process of production, and required aluminium can be obtained by blanking Alloy frame material and fan material, however, no matter the device of blanking has more accurate and high-end, much discarded leftover pieces can be all produced, it is right For a factory, if these discarded leftover pieces, which are directly thrown away, to cause the loss of flood tide, many enterprises all select now Select and try every possible means efficiently to reclaim these discarded leftover pieces so as to reduce the production cost of aluminum alloy doors and windows to reach lifting oneself The purpose of product competitiveness.
The first step of recovery aluminium alloy scrap needs to melt these aluminium alloy scraps, and equipment used is melting furnace, fusing Stove can meet aluminum alloy melting technique well.But traditional melting furnace only possess melt aluminium alloy function, melt into Material, preheating, fusing and casting cycle in aluminium alloy can be contacted with the oxygen in air and hydrogen, so as to get casting possess gas Hole, the defects of being mingled with, be loose, the physical property, mechanical property and performance of aluminium alloy castings are directly affected, if aluminium alloy Casting quality is low, and no matter how advanced follow-up casting technique is, and being initially present in the defects of aluminium alloy castings can still be present, difficult To eliminate.
The content of the invention
The technical problems to be solved by the invention are directed to the shortcomings that conventional fused stove, there is provided a kind of fusing for possessing refining chamber Stove, solve conventional fused stove charging, preheating, fusing and casting cycle in Al alloy parts or aluminium liquid ingress of air and cause aluminium The low-quality problem of alloy-steel casting.
The present invention is achieved through the following technical solutions：A kind of melting furnace for possessing refining chamber, including stove outer covering, outside the stove Stove inner casing is provided with the inside of shell, electric heating layer is provided between stove outer covering and stove inner casing, stove inner housing inner is provided with baffle plate, described The inner space of stove inner casing is divided into two parts by baffle plate, and wherein top is divided into melting chamber, and bottom is divided into refining chamber, stove outer covering top Charge pipe is provided with, the charge pipe is connected through stove outer covering and with melting chamber, and connecting tube, discharge are provided with the outside of stove outer covering Pipe, air inlet pipe, downtake pipe, wherein, the connecting tube connection melting chamber and refining chamber, the drainage conduit, air inlet pipe all connect Logical exterior space and refining chamber.The melting furnace of prior art only possesses the ability of fusing Al alloy parts, is carried out after the completion of fusing Casting, still, it can contact oxygen in charging, preheating, fusing and casting stage Al alloy parts or aluminium liquid and cause aluminium alloy to be cast Part quality is low, even if how advanced subsequent technique is, initially caused mass defect can not be eliminated, according to conventional fused stove Defect, the present apparatus are provided with refining chamber, and the mixed gas by being passed through chlorine, carbon monoxide and nitrogen into refining chamber, which reaches, to be removed The aluminum oxide and the purpose of hydrogen gone in aluminium liquid.During using the present invention, electric heating layer is first turned on first, by being arranged on fusing The temperature control of melting chamber at 200 to 300 °, is then poured into aluminium alloy to be melted by the temperature monitoring in room from charge pipe Workpiece, after division of labor part in accumulation portion in melting chamber, continue to heat the temperature of melting chamber to 600 to 700 °, now melting chamber bottom The workpiece of accumulation gradually melts, and after a part of workpiece of melting, opens connecting tube, flows into the molten metal that completion is melted in melting chamber In refining chamber, air inlet pipe is connected into mixing gas cylinder, air inlet pipe and downtake pipe is opened, the molten metal after the completion of fusing is led to Enter mixed gas, in mixed gas in chlorine can be reacted with aluminum oxide generation oxygen and aluminium chloride, oxygen and mixing Carbon monoxide in gas can generate carbon dioxide, and so as to eliminate aluminum oxide present in aluminium liquid, the nitrogen in mixed gas can To take the hydrogen being adsorbed in aluminium liquid out of, the China in addition, aluminium chloride gos up at high temperature, together discharged with mixed gas, as above Described, mixed gas can take the aluminum oxide and hydrogen in aluminium liquid in refining chamber out of, have the function that to purify aluminium liquid, refined Afterwards, open drainage conduit and carry out cast molding.
Further, in addition to exhaust gas cleaner, the downtake pipe connect refining chamber and exhaust gas cleaner, institute State and second exhaust pipe is connected with exhaust gas cleaner, the second exhaust pipe connection exhaust gas cleaner and exterior space.Cause To have chlorine in mixed gas, so, the responseless chlorine in part can be discharged in air together with mixed gas, deteriorated Working environment, the health of operating personnel is caused to damage, equipment can also be corroded.Therefore, downtake pipe is connected to tail gas Sodium hydroxide solution is filled in purifier, in exhaust gas cleaner can remove chlorine, and downtake pipe is deep into hydrogen-oxygen Change and effect meeting is removed in sodium solution more preferably, after removing chlorine, tail gas is discharged into air by second exhaust pipe.
Further, one end that the connecting tube is located inside melting chamber is provided with filter screen, and the drainage conduit is positioned at refining One end of chamber interior is provided with filter screen.The workpiece that setting filter screen can prevent from not being completely melt blocks connecting tube and drainage conduit, leads Cause can not continuously cast molding.
Further, the connecting tube uses resistant to elevated temperatures heat-insulating material.Connecting tube uses the mesh of high-temperature resistant thermal insulating material Be to ensure that molten metal will not cause heat to scatter and disappear when being flowed out from melting chamber because of the low temperature of free surrounding space.
Further, the one end of the air inlet pipe inside refining chamber is close to refining chamber bottom.Air inlet pipe is so set Purpose reaches the mesh of the aluminum oxide and hydrogen that preferably remove in aluminium liquid in mixed gas can be passed directly in aluminium liquid 's.
Further, drive device is provided with above the stove outer covering, the output end of the drive device is connected with rotation Axle, for the rotary shaft through stove outer covering into refining chamber, part of the rotary shaft above baffle plate is connected with the first agitating paddle, rotates Axle bottom is connected with the second agitating paddle.Workpiece can more quickly be melted by stirring, improve the operating efficiency of melting chamber, essence The second agitating paddle in refining room can be such that mixed gas is fully contacted with aluminium liquid so as to improve refining effect.
Further, the length of first agitating paddle is 3/4ths of fusing chamber radius.Found by production practices, When the length of agitating paddle is melts 3/4ths of chamber radius, the operating efficiency highest of melting chamber, that is, the driving of rotary shaft is connected Device can carry out most uniform stirring with the live load of minimum to the workpiece in melting chamber.
Further, the length of second agitating paddle is 2/3rds of the first paddle length.Pass through production practices It was found that when the length of the second agitating paddle is 2/3rds of the first paddle length, the mixing effect in refining chamber is optimal, because Refining chamber and stirring that need not be very violent, its purpose is primarily to make mixed gas react more abundant with aluminium liquid.
Further, the output end of the drive device and the part for rotating axis connection are resistant to elevated temperatures heat-insulating material.This The purpose that sample is set is also to the drive device of protection connection rotary shaft, the temperature for making it not conducted because of rotary shaft And produce damage.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is provided with refining chamber, by toward mixed gas is passed through in the aluminium liquid in refining chamber, reaching in removing aluminium liquid Aluminum oxide and hydrogen, the quality of aluminium liquid is improved, is advantageous to subsequent technique；
2nd, the present invention uses dual chamber design, it is not necessary to aluminium liquid is transferred in refining furnace again after the completion of fusing, simplifies operation Step, save heat energy and fusing time；
3rd, the present invention devises exhaust gas processing device, can effectively remove chlorine, avoid its be passed through in air to operating personnel and Plant equipment causes damage；
4th, the present invention is had found when the length of agitating paddle is melts 3/4ths of chamber radius, drive device by production practices More preferable stirring can be reached with less live load, further improve the operating efficiency of melting chamber.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of semi-section of the present invention.
Mark and corresponding parts title in accompanying drawing：
1- stove outer coverings, 2- stove inner casings, 3- electric heating layers, 4- connecting tubes, 5- downtake pipes, 6- second exhaust pipes, 7- tail gas are net Makeup is put, 8- charge pipes, 9- rotary shafts, 10- air inlet pipe, 11- drainage conduits.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment
As shown in figure 1, the present invention is a kind of melting furnace for possessing refining chamber, including stove outer covering 1, the inner side of stove outer covering 1 Stove inner casing 2 is provided with, electric heating layer 3 is provided between stove outer covering 1 and stove inner casing 2, stove inner housing inner is provided with baffle plate, described The inner space of stove inner casing 2 is divided into two parts by baffle plate, and wherein top is divided into melting chamber, and bottom is divided into refining chamber, on stove outer covering 1 Side is provided with charge pipe 8, and the charge pipe 8 connects through stove outer covering 1 and with melting chamber, and the outside of stove outer covering 1 is provided with connection Pipe 4, drainage conduit 11, air inlet pipe 10, downtake pipe 5, wherein, the connecting tube 4 connects melting chamber and refining chamber, the discharge Pipe 11, air inlet pipe 10 all connect exterior space and refining chamber.Further, in addition to exhaust gas cleaner 7, the first exhaust Pipe 5 connects refining chamber and exhaust gas cleaner 7, and second exhaust pipe 6, the second row are connected with the exhaust gas cleaner 7 Tracheae 6 connects exhaust gas cleaner 7 and exterior space.Further, one end that the connecting tube 4 is located inside melting chamber is set There is filter screen, one end that the drainage conduit 11 is located inside refining chamber is provided with filter screen.Further, the connecting tube 4 is using resistance to The heat-insulating material of high temperature.Further, the one end of the air inlet pipe 10 inside refining chamber is close to refining chamber bottom.Further Ground, the top of stove outer covering 1 are provided with drive device, and the output end of the drive device is connected with rotary shaft 9, the rotary shaft 9 run through stove outer covering 1 into refining chamber, and part of the rotary shaft 9 above baffle plate is connected with the first agitating paddle, and the bottom of rotary shaft 9 connects It is connected to the second agitating paddle.Further, the length of first agitating paddle is 3/4ths of fusing chamber radius.Further, The length of second agitating paddle is 3/4ths of the first paddle length.Further, the output end of the drive device The part being connected with rotary shaft 9 is resistant to elevated temperatures heat-insulating material.During using the present apparatus, electric heating layer 3 is first turned on, passes through setting The temperature of melting chamber is risen to 200 to 300 ° by the temperature monitoring in melting chamber, and Al alloy parts are poured into from charge pipe 8, After accumulation portion lease making crosses the workpiece of preheating in melting chamber, the motor positioned at the top of stove outer covering 1 is opened, motor passes through rotary shaft 12 Drive the first agitating paddle and the second agitating paddle to start to stir, continue to heat the temperature of melting chamber afterwards to 600 to 700 °, now melt Change the workpiece of room bottom accumulation with stirring gradually fusing, after melting a part of workpiece, open connecting tube 4, aluminium liquid enters refining Stirred in room and by the second agitating paddle, open air inlet pipe 10, mixed gas is passed through into aluminium liquid, the ratio of mixed gas is nitrogen Gas：Chlorine：Carbon monoxide is 8:1:1, mixed gas is reacted with the aluminium liquid in refining chamber, removes aluminum oxide and hydrogen in aluminium liquid Afterwards, tail gas is entered in exhaust gas cleaner 7 by downtake pipe 5, after removing chlorine with sodium hydroxide solution reaction, Air is entered by second exhaust pipe 6 again, opens drainage conduit 11 afterwards to die casting member.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include Within protection scope of the present invention.

Claims (9)

1. a kind of melting furnace for possessing refining chamber, including stove outer covering（1）, the stove outer covering（1）Inner side is provided with stove inner casing（2）, Stove outer covering（1）With stove inner casing（2）Between be provided with electric heating layer（3）, it is characterised in that stove inner casing（2）It is internally provided with baffle plate, The baffle plate is by stove inner casing（2）Inner space be divided into two parts, wherein top is divided into melting chamber, and bottom is divided into refining chamber, stove Shell（1）Top is provided with charge pipe（8）, the charge pipe（8）Through stove outer covering（1）And connected with melting chamber, stove outer covering（1） Outside be provided with connecting tube（4）, drainage conduit（11）, air inlet pipe（10）, downtake pipe（5）, wherein, the connecting tube（4） Connect melting chamber and refining chamber, the drainage conduit（11）, air inlet pipe（10）All connect exterior space and refining chamber.
2. a kind of melting furnace for possessing refining chamber according to claim 1, it is characterised in that also including exhaust gas cleaner （7）, the downtake pipe（5）Connect refining chamber and exhaust gas cleaner（7）, the exhaust gas cleaner（7）On be connected with Second exhaust pipe（6）, the second exhaust pipe（6）Connect exhaust gas cleaner（7）And exterior space.
A kind of 3. melting furnace for possessing refining chamber according to claim 1, it is characterised in that the connecting tube（4）It is located at One end inside melting chamber is provided with filter screen, the drainage conduit（11）One end inside refining chamber is provided with filter screen.
A kind of 4. melting furnace for possessing refining chamber according to claim 1, it is characterised in that the connecting tube（4）Using Resistant to elevated temperatures heat-insulating material.
A kind of 5. melting furnace for possessing refining chamber according to claim 1, it is characterised in that the air inlet pipe（10）In essence One end of chamber interior is refined close to refining chamber bottom.
A kind of 6. melting furnace for possessing refining chamber according to claim 1, it is characterised in that the stove outer covering（1）Top Drive device is provided with, the output end of the drive device is connected with rotary shaft（9）, the rotary shaft（9）Through stove outer covering（1） Into refining chamber, rotary shaft（9）Part above baffle plate is connected with the first agitating paddle, rotary shaft（9）Bottom is connected with second Agitating paddle.
A kind of 7. melting furnace for possessing refining chamber according to claim 6, it is characterised in that the length of first agitating paddle Spend to melt 3/4ths of chamber radius.
A kind of 8. melting furnace for possessing refining chamber according to claim 6, it is characterised in that the length of second agitating paddle Spend for 2/3rds of the first paddle length.
A kind of 9. melting furnace for possessing refining chamber according to claim 6, it is characterised in that the output of the drive device End and rotary shaft（9）The part of connection is resistant to elevated temperatures heat-insulating material.
CN201610722190.7A 2016-08-25 2016-08-25 A kind of melting furnace for possessing refining chamber Withdrawn CN107779611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610722190.7A CN107779611A (en) 2016-08-25 2016-08-25 A kind of melting furnace for possessing refining chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610722190.7A CN107779611A (en) 2016-08-25 2016-08-25 A kind of melting furnace for possessing refining chamber

Publications (1)

Publication Number Publication Date
CN107779611A true CN107779611A (en) 2018-03-09

Family

ID=61388949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610722190.7A Withdrawn CN107779611A (en) 2016-08-25 2016-08-25 A kind of melting furnace for possessing refining chamber

Country Status (1)

Country Link
CN (1) CN107779611A (en)

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Application publication date: 20180309