CN106676283A - Continuous degassing device and method for ladling tank - Google Patents
Continuous degassing device and method for ladling tank Download PDFInfo
- Publication number
- CN106676283A CN106676283A CN201710156060.6A CN201710156060A CN106676283A CN 106676283 A CN106676283 A CN 106676283A CN 201710156060 A CN201710156060 A CN 201710156060A CN 106676283 A CN106676283 A CN 106676283A
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- Prior art keywords
- air
- hot water
- aluminium liquid
- bathing pool
- injection device
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- 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
- C22B9/055—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ while the metal is circulating, e.g. combined with filtration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A continuous degassing device for a ladling tank comprises a feeding tower and a degassing unit, wherein the feeding tower is provided with a feeding port for feeding furnace burden into the degassing device, wherein the furnace burden is specifically aluminum; the feeding tower is connected with a smelting chamber; the temperature of air in the smelting chamber is controlled within a certain temperature range so as to ensure the smelting of the aluminum; the aluminum is heated and smelted into molten aluminum through the smelting chamber and then the molten aluminum flows into the tank; a heat preserving chamber is arranged above the tank and is connected with the smelting chamber; the temperature of the air in the heat preserving chamber is controlled within a certain temperature range so as to prevent the molten aluminum from solidifying; a rough smelting and nitrogen blowing device, which is specifically a movable steel pipe, is arranged on the side surface of the heat preserving chamber; one end of the movable steel pipe extends into the molten aluminum; the rough smelting and nitrogen blowing device is connected with a gas blowing refine smelting chamber, and the gas blowing refine smelting chamber is connected to the ladling tank in a manner of separating through a ceramic filtering plate; the ladling tank comprises a ladle and a molten aluminum temperature measuring bar; the molten aluminum temperature measuring bar is connected with a heat preserving flame jet device.
Description
Technical field
The present invention relates to field of machining, and in particular to one kind ladles the continuous depassing unit in pond and degasification method.
Background technology
Die casting machine is a kind of common equipment of field shaping technique in machinery industry, be one kind under pressure melting
Metal hydraulic is mapped to cooling shaping in die casting, and a kind of industrial machinery of solid metal casting is obtained after die sinking.Wherein metal
Liquid is that the quality of aluminium liquid becomes the key of quality of die casting, directly affects the Forming Quality and internal microstructure of die casting,
Largely determine its mechanical property, industrially, in order to remove the gas in molten aluminum liquid and impurity, multiplex deslagging agent and
Protection gas is processed production to it, after slagging-off terminates, often uses and manually takes off instrument to swimming in aluminium liquid upper strata using slag
Residue manually removed slag, because molten aluminum liquid temperature is higher, during manually being removed slag easily produce security incident,
It is very dangerous.
And no matter Al-alloy products being manufactured with die casting or casting mode at present, main process is all heating aluminium ingot, melts it
It is melted into stove, after deaerated slagging-off, the aluminium water after purification is noted in default mould, waits its cooling to can be prepared by given shape
Aluminium casting, a certain amount of hydrogen is dissolved with melting ground aluminium liquid and easily causes the metallurgical imperfections such as stomata, and the aluminium of production high-quality is adopted
With online degassing and purifying equipment, inert gas is passed through in metal bath and is filled by stages with impeller through the ceramics rotating shaft such as high purity graphite
After dividing stirring mixing, the hydrogen and partial suspended impurity being dissolved in aluminium liquid with inert gas floating are taken out of, reach purification aluminium
The purpose of liquid, to ensure degassing efficiency, needs certain depth in depassing unit inner chamber could be realized purifying purpose, terminated in casting
Depassing unit inner chamber will necessarily remain metal aluminium liquid afterwards, typically between 500-2500kg, after end-of-job, and a kind of mode
It is, using electrical heat tracing mode, to be under molten condition to residual fraction, in case continuing next time to produce and process；It is another
Mode is that residual aluminium liquid is released into condensation, and molten refusion in the stove is placed into when waiting process next time, and above two is to depassing unit inner chamber
The processing mode for remaining aluminium liquid has deficiency, big to energy loss, especially when alloy is converted, can only use the second way,
The manufacturing procedure of another alloy can be just carried out after the first alloy can only be waited to be cleaned out in degassing apparatus, causes work to imitate
Rate reduction.
The content of the invention
The continuous depassing unit in pond and degasification method the present invention is intended to provide one kind ladles.
To realize above-mentioned technical purpose, the present invention uses following technical scheme, and one kind ladles the continuous depassing unit in pond, including
Charging tower and removal unit, charging tower are provided with charging aperture for being put into furnace charge to depassing unit, and furnace charge is piled up in depassing unit,
Into melting chamber, furnace charge is specifically aluminium material, and the charging tower connects melting chamber, and melting chamber specifically includes melting flame injection device
With air tempilstick, air tempilstick connection melt flame injection device, melt flame injection device flame jet alignment from
The aluminium material that the heap that charging aperture is put into comes, air tempilstick is located at the top for melting flame injection device to melting flame injection
Air themperature after device heating is detected, its connection melt flame injection device with control the flame size of melting chamber so as to
Melting chamber air temperature control is ensured into the melting of aluminium material in certain temperature range, soup is provided with below the depassing unit
Pond, hot water bathing pool is specifically a groove, and aluminium material turns to aluminium liquid and flows into hot water bathing pool after being melted through melting chamber heating, and moist closet is located on hot water bathing pool
Side simultaneously connects melting chamber, and moist closet includes insulation flame injection device and air thermal preservation tempilstick, insulation flame injection device
Aluminium liquid in flame jet alignment hot water bathing pool, insulation air tempilstick is located at the side of insulation flame injection device to insulation flame spray
Air themperature after injection device heating is detected, its connection insulation flame injection device with control the flame size of moist closet from
And preventing aluminium liquid from solidifying in certain temperature range moist closet air temperature control, the side of moist closet is provided with thick refining nitrogen flushing
Device of air, specifically one moveable steel pipe, its one end is stretched into aluminium liquid, thick refining nitrogen flushing device of air connection blowing refining room,
Blowing refining room specifically includes the slag trap and centrally located graphite nitrogen blowing device of both sides, the graphite nitrogen blowing dress
The bottom put is provided with several pores, blowing refining room connect to hot water bathing pool, blowing refining room and between hot water bathing pool by ceramics
Filter separates, and pony ladle and aluminium liquid tempilstick are included to hot water bathing pool, and aluminium liquid tempilstick equally connects insulation flame injection device.
Preferably, slightly the nitrogen pressure of refining nitrogen flushing device of air blowout is 0.1-0.2MPa, thick refining nitrogen flushing device of air every four
Hour starts once, and ten minutes are stood after gas has been blown every time.
Preferably, the nitrogen pressure of graphite nitrogen blowing device blowout is 0.04 ± 0.01MPa.
One kind ladles the continuous degasification method in pond, comprises the following steps：
S1, charging, are aluminium material from the charging aperture of charging tower in the continuous depassing unit of input by furnace charge, and aluminium material is filled in continuous degasification
Put interior accumulation and enter melting chamber；
S2, melt, the flame jet of the melting flame injection device of melting chamber are directed at the aluminium that the heap being put into from charging aperture comes
Material, air tempilstick is located at the top for melting flame injection device and is carried out to melting the air themperature after flame injection device heating
Detection, its connection melts flame injection device melting chamber air temperature control is existed with controlling the flame size of melting chamber
Ensure that aluminium material melts within the temperature range of 500-600 DEG C, hot water bathing pool is provided with below the depassing unit, hot water bathing pool is specifically one
Groove, aluminium material turns to aluminium liquid and flows into hot water bathing pool after being melted through melting chamber heating；
S3, insulation, aluminium material turns to aluminium liquid inflow hot water bathing pool after being melted through melting chamber heating after, by moist closet to the aluminium liquid in hot water bathing pool
It is incubated, moist closet is located at hot water bathing pool top and connects melting chamber, and moist closet includes insulation flame injection device and air thermal preservation
Tempilstick, is incubated the aluminium liquid in the flame jet of flame injection device alignment hot water bathing pool, and insulation air tempilstick is located at insulation flame
The side of injection apparatus detects to the air themperature after insulation flame injection device heating, its connection insulation flame injection dress
Put to control the flame size of moist closet so as to moist closet air temperature control be prevented within the temperature range of 660-840 DEG C
Aluminium liquid solidifies；
S4, preliminary exhaust, thick refining nitrogen flushing device of air, specifically one moveable steel pipe, one are provided with the side of moist closet
End is stretched into aluminium liquid nitrogen blowing in aluminium liquid, and the nitrogen pressure of its blowout is 0.1-0.2MPa, every four hours of thick refining nitrogen flushing device of air
Start once, blown in movement, the treatment of scarfing cinder in ten minutes is stood after gas has been blown every time；
S5, refining are blown, and blowing refining room, blowing refining room tool are entered by the aluminium liquid after the tentatively exhaust of thick refining nitrogen flushing device of air
Body includes the slag trap and centrally located graphite nitrogen blowing device of both sides, the nitrogen pressure of graphite nitrogen blowing device blowout
It is 0.04 ± 0.01MPa, the bottom of the graphite nitrogen blowing device is provided with several pores, nitrogen is blown out in pore to warp
The aluminium liquid for crossing preliminary exhaust carries out further refinery activities, completes degasification work；
S6, filtering, complete degasification work after aluminium liquid enter to hot water bathing pool, blowing refining room and between hot water bathing pool pass through ceramic filter
Plate separates, and the slag trap of blowing refining room blocks the residue on aluminium liquid surface, and the residue filter in aluminium liquid is fallen, given by ceramic filter plate
Hot water bathing pool includes pony ladle and aluminium liquid tempilstick, and aluminium liquid tempilstick equally connects insulation flame injection device by the aluminium liquid in hot water bathing pool
Temperature control can directly take qualified aluminium liquid in the range of 620-720 DEG C by pony ladle.
Preferably, the slag trap is specially refractory brick.
The continuous depassing unit in the pond that ladles of present invention design, is that aluminium material input from the charging aperture of charging tower is continuous by furnace charge
In depassing unit, the connection of air tempilstick melts flame injection device to control the flame size of melting chamber so as to melting chamber is empty
Gas temperature control ensures that aluminium material melts within the temperature range of 500-600 DEG C, and subsequent aluminium material is changed after being melted through melting chamber heating
For aluminium liquid flows into hot water bathing pool, the aluminium liquid in hot water bathing pool is incubated by moist closet, the tempilstick connection insulation flame spray of insulation air
Injection device is carried out moist closet air temperature control with controlling the flame size of moist closet within the temperature range of 660-840 DEG C
Prevent aluminium liquid from solidifying, thick refining nitrogen flushing device of air is provided with the side of moist closet, specifically one moveable steel pipe, its one end is stretched
Enter to aluminium liquid nitrogen blowing in aluminium liquid, the nitrogen pressure of its blowout is 0.1-0.2MPa, thick refining nitrogen flushing device of air starts for every four hours
Once, is blown in movement, blown every time and stand after gas scarfing cinder in ten minutes and process, so by can be by aluminium after preliminary degasification
Most of hydrogen in liquid is discharged, and standing can then allow aluminium liquid that residue discharge is floated on the surface for ten minutes, by preliminary exhaust
Aluminium liquid afterwards enters blowing refining room, the nitrogen pressure of the graphite nitrogen blowing device blowout of blowing refining room for 0.04 ±
0.01MPa, thick refining nitrogen flushing device of air is different with the nitrogen pressure that graphite nitrogen blowing device blow out because tentatively exhaust requirements are not
Finely, the degasification work for only carrying out substantially just can be so that graphite nitrogen blowing device is then refining operation, by graphite nitrogen blowing device
Several pores for opening up of bottom, it is possible to use the nitrogen of smaller air pressure completes degasification work to remaining hydrogen in aluminium liquid
Make, simultaneously because the effect of pore, nitrogen ensure that with aluminium liquid there are enough contacts area, in hgher efficiency, complete degasification
Aluminium liquid after work enters to hot water bathing pool, blowing refining room and is separated by ceramic filter plate between hot water bathing pool, blowing refining room
Slag trap blocks the residue on aluminium liquid surface, and ceramic filter plate falls the residue filter in aluminium liquid, and pony ladle and aluminium liquid are included to hot water bathing pool
Tempilstick, aluminium liquid tempilstick equally connect insulation flame injection device by the temperature control of the aluminium liquid in hot water bathing pool in 620-720
In the range of DEG C, qualified aluminium liquid can directly be taken by pony ladle.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure：1st, feed tower；2nd, furnace charge；3rd, flame injection device is melted；4th, air tempilstick；5th, insulation flame injection dress
Put；6th, it is incubated air tempilstick；7th, thick refining nitrogen flushing device of air；8th, graphite nitrogen blowing device；9th, slag trap；10th, ceramic filter plate；
11st, pony ladle；12nd, aluminium liquid tempilstick；13rd, hot water bathing pool.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection, or two connections of element internal, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
One kind according to embodiments of the present invention is described referring to Fig. 1 to ladle the continuous depassing unit in pond, including the charging He of tower 1
Removal unit, charging tower 1 is provided with charging aperture for being put into furnace charge 2 to depassing unit, and furnace charge 2 is piled up in depassing unit, enters
Melting chamber, furnace charge 2 is specifically aluminium material, and the charging tower 1 connects melting chamber, and melting chamber specifically includes melting flame injection device 3
With air tempilstick 4, the connection melting flame injection device 3 of air tempilstick 4, the flame jet pair of melting flame injection device 3
The aluminium material that the accurate heap being put into from charging aperture comes, air tempilstick 4 is located at the top for melting flame injection device 3 to melting fire
Air themperature after flame injection apparatus 3 is heated is detected, and its connection melts flame injection device 3 to control the flame of melting chamber
Size in certain temperature range by melting chamber air temperature control so that ensure the melting of aluminium material, the lower section of the depassing unit
Hot water bathing pool 13 is provided with, hot water bathing pool 13 is specifically a groove, and aluminium material turns to aluminium liquid and flows into hot water bathing pool 13, insulation after being melted through melting chamber heating
Room is located at hot water bathing pool top and connects melting chamber, and moist closet includes insulation flame injection device 5 and air thermal preservation tempilstick 6, insulation
Aluminium liquid in the flame jet alignment hot water bathing pool 13 of flame injection device 5, insulation air tempilstick 6 is located at insulation flame injection device
5 side to insulation flame injection device 5 heat after air themperature detect, its connection insulation flame injection device 5 with
Control the flame size of moist closet so as to prevent aluminium liquid from solidifying in certain temperature range moist closet air temperature control, protect
The side in greenhouse is provided with thick refining nitrogen flushing device of air 7, and specifically one moveable steel pipe, its one end is stretched into aluminium liquid, and thick refining is blown
The connection blowing refining of nitrogen device 7 room, blowing refining room specifically includes the slag trap 9 and centrally located graphite blow of both sides
Nitrogen device 8, the bottom of the graphite nitrogen blowing device 8 is provided with several pores, and blowing refining room connects to hot water bathing pool, blows
Refining chamber and separated by ceramic filter plate 10 between hot water bathing pool, pony ladle 11 and aluminium liquid tempilstick 12 are included to hot water bathing pool, aluminium liquid is surveyed
The equally connection insulation flame injection device 5 of warm rod 12.
Preferably, slightly the nitrogen pressure of the blowout of refining nitrogen flushing device of air 7 is 0.1-0.2MPa, thick refining nitrogen flushing device of air 7 is every
Start once within four hours, ten minutes are stood after gas has been blown every time.
Preferably, the nitrogen pressure of the blowout of graphite nitrogen blowing device 8 is 0.04 ± 0.01MPa.
One kind ladles the continuous degasification method in pond, comprises the following steps：
S1, charging, are aluminium material from the charging aperture of charging tower in the continuous depassing unit of input by furnace charge, and aluminium material is filled in continuous degasification
Put interior accumulation and enter melting chamber；
S2, melt, the flame jet of the melting flame injection device of melting chamber are directed at the aluminium that the heap being put into from charging aperture comes
Material, air tempilstick is located at the top for melting flame injection device and is carried out to melting the air themperature after flame injection device heating
Detection, its connection melts flame injection device melting chamber air temperature control is existed with controlling the flame size of melting chamber
Ensure that aluminium material melts within the temperature range of 500-600 DEG C, hot water bathing pool is provided with below the depassing unit, hot water bathing pool is specifically one
Groove, aluminium material turns to aluminium liquid and flows into hot water bathing pool after being melted through melting chamber heating；
S3, insulation, aluminium material turns to aluminium liquid inflow hot water bathing pool after being melted through melting chamber heating after, by moist closet to the aluminium liquid in hot water bathing pool
It is incubated, moist closet is located at hot water bathing pool top and connects melting chamber, and moist closet includes insulation flame injection device and air thermal preservation
Tempilstick, is incubated the aluminium liquid in the flame jet of flame injection device alignment hot water bathing pool, and insulation air tempilstick is located at insulation flame
The side of injection apparatus detects to the air themperature after insulation flame injection device heating, its connection insulation flame injection dress
Put to control the flame size of moist closet so as to moist closet air temperature control be prevented within the temperature range of 660-840 DEG C
Aluminium liquid solidifies；
S4, preliminary exhaust, thick refining nitrogen flushing device of air, specifically one moveable steel pipe, one are provided with the side of moist closet
End is stretched into aluminium liquid nitrogen blowing in aluminium liquid, and the nitrogen pressure of its blowout is 0.1-0.2MPa, every four hours of thick refining nitrogen flushing device of air
Start once, blown in movement, the treatment of scarfing cinder in ten minutes is stood after gas has been blown every time；
S5, refining are blown, and blowing refining room, blowing refining room tool are entered by the aluminium liquid after the tentatively exhaust of thick refining nitrogen flushing device of air
Body includes the slag trap and centrally located graphite nitrogen blowing device of both sides, the nitrogen pressure of graphite nitrogen blowing device blowout
It is 0.04 ± 0.01MPa, the bottom of the graphite nitrogen blowing device is provided with several pores, nitrogen is blown out in pore to warp
The aluminium liquid for crossing preliminary exhaust carries out further refinery activities, completes degasification work；
S6, filtering, complete degasification work after aluminium liquid enter to hot water bathing pool, blowing refining room and between hot water bathing pool pass through ceramic filter
Plate separates, and the slag trap of blowing refining room blocks the residue on aluminium liquid surface, and the residue filter in aluminium liquid is fallen, given by ceramic filter plate
Hot water bathing pool includes pony ladle and aluminium liquid tempilstick, and aluminium liquid tempilstick equally connects insulation flame injection device by the aluminium liquid in hot water bathing pool
Temperature control can directly take qualified aluminium liquid in the range of 620-720 DEG C by pony ladle.
Preferably, the slag trap is specially refractory brick.
The continuous depassing unit in the pond that ladles of present invention design, is that aluminium material input from the charging aperture of charging tower is continuous by furnace charge
In depassing unit, the connection of air tempilstick melts flame injection device to control the flame size of melting chamber so as to melting chamber is empty
Gas temperature control ensures that aluminium material melts within the temperature range of 500-600 DEG C, and subsequent aluminium material is changed after being melted through melting chamber heating
For aluminium liquid flows into hot water bathing pool, the aluminium liquid in hot water bathing pool is incubated by moist closet, the tempilstick connection insulation flame spray of insulation air
Injection device is carried out moist closet air temperature control with controlling the flame size of moist closet within the temperature range of 660-840 DEG C
Prevent aluminium liquid from solidifying, thick refining nitrogen flushing device of air is provided with the side of moist closet, specifically one moveable steel pipe, its one end is stretched
Enter to aluminium liquid nitrogen blowing in aluminium liquid, the nitrogen pressure of its blowout is 0.1-0.2MPa, thick refining nitrogen flushing device of air starts for every four hours
Once, is blown in movement, blown every time and stand after gas scarfing cinder in ten minutes and process, so by can be by aluminium after preliminary degasification
Most of hydrogen in liquid is discharged, and standing can then allow aluminium liquid that residue discharge is floated on the surface for ten minutes, by preliminary exhaust
Aluminium liquid afterwards enters blowing refining room, the nitrogen pressure of the graphite nitrogen blowing device blowout of blowing refining room for 0.04 ±
0.01MPa, thick refining nitrogen flushing device of air is different with the nitrogen pressure that graphite nitrogen blowing device blow out because tentatively exhaust requirements are not
Finely, the degasification work for only carrying out substantially just can be so that graphite nitrogen blowing device is then refining operation, by graphite nitrogen blowing device
Several pores for opening up of bottom, it is possible to use the nitrogen of smaller air pressure completes degasification work to remaining hydrogen in aluminium liquid
Make, simultaneously because the effect of pore, nitrogen ensure that with aluminium liquid there are enough contacts area, in hgher efficiency, complete degasification
Aluminium liquid after work enters to hot water bathing pool, blowing refining room and is separated by ceramic filter plate between hot water bathing pool, blowing refining room
Slag trap blocks the residue on aluminium liquid surface, and ceramic filter plate falls the residue filter in aluminium liquid, and pony ladle and aluminium liquid are included to hot water bathing pool
Tempilstick, aluminium liquid tempilstick equally connect insulation flame injection device by the temperature control of the aluminium liquid in hot water bathing pool in 620-720
In the range of DEG C, qualified aluminium liquid can directly be taken by pony ladle.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that the specific features, structure, material or the feature that are described with reference to the embodiment or example are contained in of the invention at least one real
In applying example or example.In this manual, identical embodiment is not necessarily referring to the schematic representation of above-mentioned term or is shown
Example.And, the specific features of description, structure, material or feature can be in one or more any embodiments or example
Combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (5)
1. one kind ladles the continuous depassing unit in pond, including charging tower and removal unit, it is characterised in that charging tower is provided with charging aperture
For being put into furnace charge to depassing unit, furnace charge is piled up in depassing unit, and into melting chamber, furnace charge is specifically aluminium material, described to add
Material tower connection melting chamber, melting chamber specifically includes melting flame injection device and air tempilstick, and the connection of air tempilstick melts
Flame injection device, the flame jet for melting flame injection device is directed at the aluminium material that the heap being put into from charging aperture comes, air
Tempilstick is located at the top for melting flame injection device and is detected to melting the air themperature after flame injection device heating, its
Connection melts flame injection device to control the flame size of melting chamber so that by melting chamber air temperature control in uniform temperature
In the range of ensure that aluminium material melts, be provided with hot water bathing pool below the depassing unit, hot water bathing pool is specifically a groove, aluminium material is through melting
Room heating turns to aluminium liquid and flows into hot water bathing pool after melting, moist closet is located at hot water bathing pool top and connects melting chamber, and moist closet includes insulation fire
Flame injection apparatus and air thermal preservation tempilstick, are incubated the aluminium liquid in the flame jet of flame injection device alignment hot water bathing pool, and insulation is empty
Gas tempilstick is located at the side of insulation flame injection device and the air themperature after insulation flame injection device heating is detected,
Its connection insulation flame injection device is to control the flame size of moist closet so that by moist closet air temperature control in a constant temperature
Prevent aluminium liquid from solidifying in the range of degree, the side of moist closet is provided with and slightly refines nitrogen flushing device of air, specifically one moveable steel pipe,
Its one end is stretched into aluminium liquid, thick refining nitrogen flushing device of air connection blowing refining room, and blowing refining room specifically includes the slag trap of both sides
With centrally located graphite nitrogen blowing device, the bottom of the graphite nitrogen blowing device is provided with several pores, blows
Refining chamber is connected to hot water bathing pool, blowing refining room and is separated by ceramic filter plate between hot water bathing pool, and pony ladle and aluminium are included to hot water bathing pool
Liquid tempilstick, aluminium liquid tempilstick equally connects insulation flame injection device.
2. the continuous depassing unit in the pond that ladles according to claim 1, it is characterised in that the nitrogen of thick refining nitrogen flushing device of air blowout
Atmospheric pressure is 0.1-0.2MPa, and thick refining nitrogen flushing device of air starts once for every four hours, and ten minutes are stood after gas has been blown every time.
3. the continuous depassing unit in the pond that ladles according to claim 1, it is characterised in that the nitrogen of graphite nitrogen blowing device blowout
Atmospheric pressure is 0.04 ± 0.01MPa.
4. a kind of continuous degasification method in the pond that ladles according to claim 1, it is characterised in that comprise the following steps：
S1, charging, are aluminium material from the charging aperture of charging tower in the continuous depassing unit of input by furnace charge, and aluminium material is filled in continuous degasification
Put interior accumulation and enter melting chamber；
S2, melt, the flame jet of the melting flame injection device of melting chamber are directed at the aluminium that the heap being put into from charging aperture comes
Material, air tempilstick is located at the top for melting flame injection device and is carried out to melting the air themperature after flame injection device heating
Detection, its connection melts flame injection device melting chamber air temperature control is existed with controlling the flame size of melting chamber
Ensure that aluminium material melts within the temperature range of 500-600 DEG C, hot water bathing pool is provided with below the depassing unit, hot water bathing pool is specifically one
Groove, aluminium material turns to aluminium liquid and flows into hot water bathing pool after being melted through melting chamber heating；
S3, insulation, aluminium material turns to aluminium liquid inflow hot water bathing pool after being melted through melting chamber heating after, by moist closet to the aluminium liquid in hot water bathing pool
It is incubated, moist closet is located at hot water bathing pool top and connects melting chamber, and moist closet includes insulation flame injection device and air thermal preservation
Tempilstick, is incubated the aluminium liquid in the flame jet of flame injection device alignment hot water bathing pool, and insulation air tempilstick is located at insulation flame
The side of injection apparatus detects to the air themperature after insulation flame injection device heating, its connection insulation flame injection dress
Put to control the flame size of moist closet so as to moist closet air temperature control be prevented within the temperature range of 660-840 DEG C
Aluminium liquid solidifies；
S4, preliminary exhaust, thick refining nitrogen flushing device of air, specifically one moveable steel pipe, one are provided with the side of moist closet
End is stretched into aluminium liquid nitrogen blowing in aluminium liquid, and the nitrogen pressure of its blowout is 0.1-0.2MPa, every four hours of thick refining nitrogen flushing device of air
Start once, blown in movement, the treatment of scarfing cinder in ten minutes is stood after gas has been blown every time；
S5, refining are blown, and blowing refining room, blowing refining room tool are entered by the aluminium liquid after the tentatively exhaust of thick refining nitrogen flushing device of air
Body includes the slag trap and centrally located graphite nitrogen blowing device of both sides, the nitrogen pressure of graphite nitrogen blowing device blowout
It is 0.04 ± 0.01MPa, the bottom of the graphite nitrogen blowing device is provided with several pores, nitrogen is blown out in pore to warp
The aluminium liquid for crossing preliminary exhaust carries out further refinery activities, completes degasification work；
S6, filtering, complete degasification work after aluminium liquid enter to hot water bathing pool, blowing refining room and between hot water bathing pool pass through ceramic filter
Plate separates, and the slag trap of blowing refining room blocks the residue on aluminium liquid surface, and the residue filter in aluminium liquid is fallen, given by ceramic filter plate
Hot water bathing pool includes pony ladle and aluminium liquid tempilstick, and aluminium liquid tempilstick equally connects insulation flame injection device by the aluminium liquid in hot water bathing pool
Temperature control can directly take qualified aluminium liquid in the range of 620-720 DEG C by pony ladle.
5. degasification method according to claim 4, it is characterised in that the slag trap is specially refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156060.6A CN106676283B (en) | 2017-03-16 | 2017-03-16 | One kind ladles the continuous depassing unit in pond and degasification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156060.6A CN106676283B (en) | 2017-03-16 | 2017-03-16 | One kind ladles the continuous depassing unit in pond and degasification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106676283A true CN106676283A (en) | 2017-05-17 |
| CN106676283B CN106676283B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710156060.6A Active CN106676283B (en) | 2017-03-16 | 2017-03-16 | One kind ladles the continuous depassing unit in pond and degasification method |
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| CN (1) | CN106676283B (en) |
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| CN111964439A (en) * | 2020-08-31 | 2020-11-20 | 炬鼎热能科技(苏州)有限公司 | Gas engine side furnace hearth structure with lintel |
| CN116065042A (en) * | 2021-11-04 | 2023-05-05 | 连云港星耀材料科技有限公司 | Aluminum alloy melt purification process system and purification process |
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| WO1996016193A1 (en) * | 1994-11-24 | 1996-05-30 | Aluminium Pechiney | Device for degassing and separating the inclusions in a liquid metal bath |
| CN104197715A (en) * | 2014-09-02 | 2014-12-10 | 厦门民兴工业有限公司 | Continuous type aluminum alloy melting furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111964439A (en) * | 2020-08-31 | 2020-11-20 | 炬鼎热能科技(苏州)有限公司 | Gas engine side furnace hearth structure with lintel |
| CN116065042A (en) * | 2021-11-04 | 2023-05-05 | 连云港星耀材料科技有限公司 | Aluminum alloy melt purification process system and purification process |
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| CN106676283B (en) | 2018-06-19 |
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