CN106498180A - A kind of process units of high-purity oxygen-free copper ingot blank and method - Google Patents
A kind of process units of high-purity oxygen-free copper ingot blank and method Download PDFInfo
- Publication number
- CN106498180A CN106498180A CN201611145890.0A CN201611145890A CN106498180A CN 106498180 A CN106498180 A CN 106498180A CN 201611145890 A CN201611145890 A CN 201611145890A CN 106498180 A CN106498180 A CN 106498180A
- Authority
- CN
- China
- Prior art keywords
- ingot blank
- compartment
- free copper
- oxygen
- inlet opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
-
- 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
Landscapes
- 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)
Abstract
The invention provides a kind of process units of high-purity oxygen-free copper ingot blank, including being sequentially communicated melting furnace, compartment and the holding furnace of setting, the compartment is additionally provided with degasifier, the degasifier includes the air shooter and the hood being connected inside the compartment for conveying depleted gas with the port of export of the air shooter, is provided with some apertures for 0.5 1mm steam vents on the hood；The melting furnace is connected by inlet opening with the compartment, and the hood is just arranged to the inlet opening, and the hood is 10 40mm apart from the distance of the inlet opening；On copper liquid flow direction, the projection of the hood is more than the projection of the inlet opening.Further present invention also offers the method that produces oxygen-free copper ingot blank using said apparatus, compactness can be produced using the present processes good, hypoxic high-purity oxygen-free copper ingot blank.
Description
Technical field
The present invention relates to technical field of nonferrous metal processing, and in particular to a kind of process units of high-purity oxygen-free copper ingot blank.
Background technology
Oxygen-free copper refers to not oxygen-containing fine copper also without any deoxidier residue, but actually still contains in oxygen-free copper
Very micro oxygen and some impurity.Press standard GB/T/T5231-2001《Worked copper and copper alloy chemical composition and product shape
Shape》Regulation, the content of Oxygen in Oxygen-Free Copper is not more than 0.003%, and content of impurities is not more than 0.05%, and the purity of copper is more than
99.95%.Wherein, according to the height of oxygen content, oxygen-free copper be divided into again TU0 (≤5ppm), TU1 (5～20ppm), TU2 (20～
The rank such as 30ppm).Splendid electrical and thermal conductivity and extension are made it have as Oxygen in Oxygen-Free Copper and impurity content are low, purity is high
Property, and air penetrability is low, processing characteristics is also preferable with welding, anti-corrosion, cold resistance.Especially TU0 oxygen-free coppers due to oxygen content not high
In 5ppm, high-purity oxygen-free copper is also called, is the critical material for producing electrovacuum element.
The raw material of production oxygen-free copper is generally standard cathode copper, and the oxygen content of standard cathode copper is generally 30～50ppm,
Far above the oxygen content standard of high-purity oxygen-free copper, and the oxygen in melting production process in easy absorption air.Therefore exist
In the production process of oxygen-free copper, how efficient deoxidation becomes the key technology for preparing high-quality oxygen-free copper.
Chinese patent literature CN101708510A discloses a kind of processing technology of high-purity high-conductivity oxygen-free copper bar, by metering
Argon gas or nitrogen are pressed in copper liquid and are dispersed as micro-bubble so as to be uniformly dispersed in copper liquid, so as to reach degasification, deoxidation
Purpose, the technique dissolves in the elemental oxygen dissolved in copper liquid in foreign gas merely by partial pressure difference principle, and outstanding
Take away during floating.But in copper liquid in addition to containing free oxygen, more importantly copper reacts the oxygen for generating under melting state with oxygen
Change and in copper and cuprous oxide, and copper liquid, under trace impurity high temperature, react the oxide for generating with oxygen, using above-mentioned document in point
Pressure reduction mode can not slough the oxygen contained in cupric oxide in copper, cuprous oxide and oxide impurity, therefore in copper oxygen content
Still higher.
For this purpose, Chinese patent literature CN101274363A discloses a kind of method for continuously converting and casting oxygen-free copper ingot, its work
Skill step includes that tough cathode is first melted in smelting furnace, and the copper liquid after fusing enters deoxidation stove by bottom blowing chute, and one is aoxidized
Carbon gas or the mixed gas of carbon monoxide and nitrogen, in the copper liquid entered in bottom blowing chute by bottom blowing its bottom, and with
Entrance deoxidation stove in realize the deoxidation degassing of first stage, by carbon monoxide or one when by the guiding gutter of bottom blowing furnace head
In the copper liquid that the mixed gas of carbonoxide and nitrogen are entered in guiding gutter, second stage is carried out to the copper liquid in guiding gutter deoxidation
Degassing.The mixed gas mode for being blown into CO gas or carbon monoxide and nitrogen in the patent document is mainly the bottom of by
The air brick of wind drift groove and water conservancy diversion trench bottom is contacted with copper liquid phase in disperse shape, and the gas being blown into is entered by copper liquid bottom, a side
Face, its gas are difficult to equably pass through in the melt in floating-upward process, and most of copper liquid are had to by copper not in contact with to gas
Between liquid, slow diffusion completes deoxidation or degasification, and efficiency is low, effect is poor, and deoxidation effect is difficult to stable.On the other hand, the program is adopted
Smelting furnace and foundry furnace are connected with external chute, external chute causes very big thermal loss, energy consumption to improve, and respectively
Gas is connected with smelting furnace and chute two, air consumption is also resulted in greatly, is wasted substantially.Most of all, copper liquid bottom passes through
Air brick realizes that arrangement of blowing, air brick are easily blocked or avalanche, when partial-air admission hole plug or destruction, it is impossible in production process
In judged；When whole air admission holes are destroyed, then cannot change, get only blowing out, and stove of dismantling, time-consuming work consuming is very huge
Greatly.So the method cannot carry out process monitoring, control of product quality and scale aborning continuously prepare.
Content of the invention
Therefore, the technical problem to be solved in the present invention is in the production process of existing oxygen-free copper ingot blank, depleted gas with
The defect that the contact of copper liquid not exclusively causes deoxidation effect undesirable, and then a kind of device for deoxidizing is provided, with improve depleted gas with
Copper liquid contacts effect, so as to improve the removal amount of oxygen in copper liquid to greatest extent.
For this purpose, the technical solution used in the present invention is：
A kind of process units of high-purity oxygen-free copper ingot blank, including being sequentially communicated melting furnace, compartment and the holding furnace of setting, institute
State compartment and be additionally provided with degasifier, the degasifier includes the air shooter for conveying depleted gas and is located inside the compartment
The hood being connected with the port of export of the air shooter, is provided with the row of some aperture 0.5-1mm on the hood
Pore；
The melting furnace is connected by inlet opening with the compartment, and distance of the inlet opening apart from the compartment bottom is 0-
10mm；
The hood is just arranged to the inlet opening, and the hood is 10-40mm apart from the distance of the inlet opening；
On copper liquid flow direction, the projection of the hood is more than the projection of the inlet opening.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the compartment and the holding furnace are by going out liquid
Hole is connected, and the fluid hole is located in the same horizontal plane with the inlet opening, and the company of the fluid hole and the inlet opening
Line is 15-40 ° with the angle of the feed liquor centerline hole.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the hood be hollow tubular structure, one
End is connected with the air shooter, and other end sealing is arranged, and the steam vent is evenly distributed on hollow tubular hood
On perisporium.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the entrance point of the air shooter with described
Depleted gas delivery source outside process units is connected, and the air shooter is additionally provided with the gas of control gas flow
Valve.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the air shooter is additionally provided with gas and does
Dry device.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the width of the inlet opening is 50-80mm, its
Highly it is 80mm；
The external diameter of the hollow tubular hood is 70-100mm, and which is highly 100mm；
The aperture of the steam vent is 1mm.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, be coated with above the melting furnace thickness 150～
The calcining charcoal layer of the drying of 250mm, is coated with the graphite flakes layer of 100～200mm of thickness above the compartment and holding furnace；
The holding furnace is additionally provided with crystallizer and the casting machine for producing copper ingot base.
The method that high-purity oxygen-free copper ingot blank is produced using any of the above-described process units, including,
Depleted gas are passed through in the degasifier, and the effusion speed of the depleted gas is 0.03-0.07L/min；
The depleted gas are the mixed gas of carbon monoxide or carbon monoxide and nitrogen, are an oxygen in the depleted gas
Change the mixed gas of carbon and nitrogen, the carbon monoxide is (0.2-0.5) with the volume ratio of nitrogen：1.
Preferably, the method for producing high-purity oxygen-free copper ingot blank, including,
In the compartment, the flow velocity of copper liquid is 30 with the ratio of the effusion speed of the depleted gas：1～100：1.
Preferably, the method for producing high-purity oxygen-free copper ingot blank, including,
(1), after constantly melt negative electrode copper raw material, the insulation treated by melting furnace, compartment and holding furnace described in copper liquid insertion
When copper liquid in stove highly meets casting demand (i.e. copper immersion there is not crystallizer, and is higher by 100mm-150mm), the insulation is set
The temperature of stove is 1130-1165 DEG C；
(2) depleted gas are passed through in the compartment, to remove the oxygen in copper liquid；
(3) start casting machine production oxygen-free copper ingot blank, and detect the oxygen content in oxygen-free copper ingot blank, treat that its oxygen content is less than
After 5ppm, keep traction, produces high-purity oxygen-free copper ingot blank
Technical solution of the present invention, has the advantage that：
1. the present invention provide a kind of high-purity oxygen-free copper ingot blank process units, including be sequentially communicated setting melting furnace,
Compartment and holding furnace, the compartment are additionally provided with degasifier, the degasifier include the air shooter for conveying depleted gas and
The hood being connected with the port of export of the air shooter inside the compartment is located at, is provided with the hood some
Steam vent；The melting furnace is connected by inlet opening with the compartment, and the hood is vertically arranged, and just to the feed liquor
Hole is arranged, and the hood is 10～40mm apart from the distance of the inlet opening；On copper liquid flow direction, the hood
Projection of the projection more than the inlet opening.By arranging the position of inlet opening and the relative position of hood and inlet opening, from
And guaranteeing that depleted gas are filled with the position of copper liquid, one side promotion depleted gas are connect for the first time with the copper liquid entered by inlet opening
Touch, improve the local flow state of liquid, improve the contact area of depleted gas and liquid, on the other hand in the flowing shape of copper liquid
Under state, improve distribution and dispersion of the depleted gas in copper liquid, and then remove the oxygen in copper liquid to greatest extent.Can protect the position
The all copper liquid for passing through of card touch depleted gas, without any dead angle, realize abundant deoxidation.So the high-purity of production can be made
The oxygen content of oxygen-free copper ingot blank is stably less than 3ppm, while using the restriction of above-mentioned ad-hoc location, promoting gas from copper
Discharge in liquid, greatly reduces ingot casting pore, is conducive to the lifting of strand consistency.
2. the process units of a kind of high-purity oxygen-free copper ingot blank that the present invention is provided, the compartment and the holding furnace pass through
Fluid apertures is connected, and the fluid hole is located in the same horizontal plane with the inlet opening, and the fluid hole and the inlet opening
Line is 15-40 ° with the angle of the feed liquor centerline hole.Fluid hole is set in above-mentioned position, when on the one hand making copper liquid flow
Direct insertion is avoided, flow dead is formed, and copper liquid is increased with depleted gas and time of contact to improve deoxidation effect, more important
, due to diffusion and the process escaped from copper liquid such as the floating of gas such as carbon dioxide, nitrogen of depleted gas, easily
Cause the change of Local Copper liquid micro flow state, fluid hole being arranged in above-mentioned position can make holding furnace liquid level remain steady, enter
And stable castability.
3. the process units of utilization the application high-purity oxygen-free copper ingot blank that the present invention is provided produces high-purity oxygen-free copper ingot blank
In method, in the degasifier, depleted gas are passed through, are discharged from the hood, the effusion speed of the depleted gas is 0.03
～0.07L/min；In compartment (2), the flow of copper liquid is 30 with the ratio of the effusion speed of the depleted gas：1～100：1.
By depleted gas flow velocity and the control of copper flow quantity, depleted gas contact with copper liquid and the diffusion in copper liquid is promoted,
Deoxidation effect is increased, makes the oxygen content of the high-purity oxygen-free copper ingot blank of production be less than 1ppm.
4. the present invention provide a kind of high-purity oxygen-free copper ingot blank process units, described hood is just to the inlet opening
Arrange, for being inserted from above in copper liquid, be fixed on above table, thus position is adjustable, fetch and deliver conveniently, safe and reliable.This design
Not only make and install simple, and hood can easily be checked, safeguarded and be changed, so achieve deoxidation process can
Monitor, can adjust, can process, realize the completely continuous manufacturing of anaerobic copper ingot.
5. the method for the production high-purity oxygen-free copper ingot blank that the present invention is provided, adopts CO gas for depleted gas, and one
Carbonoxide has the advantages that deoxidation speed is fast and deoxidation products is not remained.Nitrogen is mixed in carbon monoxide simultaneously, dehydrogenation is realized
Effect.To there is following chemical reaction in copper liquid in carbon monoxide,
CO+2CuO→Cu2O+CO2；
CO+Cu2O→2Cu+CO2；
CO+MO→M+CO2；
H2O→H+O；
CO+O→CO2；
Final oxygen floats off out copper liquid melt in form with carbon dioxide bubble, carbon dioxide with copper liquid without solubility behavior,
So achieve deoxidation.By degasifier, the design of inlet opening, it can be ensured that fully spray with degasifier when entering compartment from melting furnace
The gas contact for going out, gas in floating-upward process further complete deoxidation, reach abundant deoxidation from floating upward quickly after the ejection of bottom
Purpose.
Additionally, gas is in floating-upward process, due to not hydrogen in insufflation gas, hydrogen partial pressure is zero, and is dissolved in bubble
Nearby the hydrogen partial pressure of melt is much larger than zero, based on the difference of hydrogen partial pressure inside and outside the bubble, make the hydrogen that is dissolved in melt constantly to
Bubble spread, and the rising with bubble and emersion and be rejected in air, reach the purpose of degasification (hydrogen).The present invention is in depth
While deoxidation, degassing purpose is adequately achieved again.The result of degasification is beneficial to the lifting of strand consistency.Compartment into and out of
The design of fluid apertures, can effectively buffer the liquid level agitation that the fluctuation of melting furnace fluid pressure and deoxidation degasification bring, make holding furnace liquid level
Remain steady, stable castability.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of structural representation of the process units of high-purity oxygen-free copper ingot blank of the present invention；
Fig. 2 is the top view of the continuous apparatus of the high-purity oxygen-free copper ingot blank shown in Fig. 1；
Fig. 3 is the structural representation of the process units of another kind high-purity oxygen-free copper ingot blank of the invention.
Description of reference numerals：
1- melting furnaces；2- compartments；21- inlet openings；22- fluid holes；3- degasifiers；31- air shooters；32- air valves；
33- hoods；4- gas-drying apparatus；5- holding furnaces；6- casting machines；7- crystallizers；8- calcines charcoal layer；9- graphite phosphorus sheet layers；
10- sawing machines, 11- cooling water tanks；12- copper ingot bases.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than whole embodiments.Embodiment in based on the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as additionally, the non-structure each other of involved technical characteristic in invention described below different embodiments
Can just be combined with each other into conflict.
It is a kind of structural representation of the process units of high-purity oxygen-free copper ingot blank of the present invention as illustrated in fig. 1 and 2, which includes
Melting furnace 1, compartment 2 and the holding furnace 5 of setting is sequentially communicated, in the present embodiment, the melting furnace 1 is 2 750 kgs/hour
Have core line-frequency induction smelting electrical furnace, inductor be respectively positioned on immediately below body of heater, for the fusing to copper raw material；The holding furnace 5
There is a core line-frequency induction smelting electrical furnace for 500 kgs/hour, for the continuously casting of oxygen-free copper ingot blank, inductor is respectively positioned on stove
Immediately below body；The compartment 2 is placed in the middle of melting furnace 1 and holding furnace 5, and is provided with through hole in both sides, makes copper liquid in melting furnace
1st, compartment 2 with keep connecting in holding furnace 5.Through hole near fusing furnace side is inlet opening 21, and the through hole for being incubated furnace side is liquid
Hole 22, compartment is without heat source.
The compartment 2 is additionally provided with degasifier 3, and the degasifier 3 includes 31 He of air shooter for conveying depleted gas
The hood 33 being connected with the port of export of the air shooter 31 inside the compartment 2 is located at, is set on the hood 33
It is equipped with some steam vents；The melting furnace 1 is connected by inlet opening 21 with the compartment 2, and inlet opening 21 is apart from the compartment 2
The distance of bottom is 0-10mm；The hood 33 is just arranged to the inlet opening 21, and the hood 33 is apart from the feed liquor
The distance in hole 21 is 10-40mm；On copper liquid flow direction, the projection of the hood 33 is more than the throwing of the inlet opening (21)
Shadow, so that the gas that the hood is discharged can be fully contacted with the liquid for flowing into compartment from inlet opening.In above-mentioned embodiment
In, the inlet opening 21 and fluid hole 22 can be provided with one or more, each inlet opening 21 correspondingly install one described de-
Oxygen device.
On the basis of above-mentioned embodiment, the compartment 2 is connected by fluid hole 22 with the holding furnace 5, described
Fluid hole 22 is located in the same horizontal plane with the inlet opening 21, and line and the institute of the fluid hole 22 and the inlet opening 21
The angle for stating 21 center line of inlet opening is 15-40 °.
On the basis of above-mentioned embodiment, the hood 33 is hollow tubular structure, and its one end is defeated with the gas
Pipe 31 is sent to be connected, other end sealing is arranged, and the steam vent is evenly distributed on the perisporium of hollow tubular hood.In this reality
Hood 33 described in example is applied for graphite material.
On the basis of above-mentioned embodiment, de- outside the entrance point of the air shooter 31 and the process units
Carrier of oxygen delivery source is connected, and the air shooter 31 is additionally provided with the air valve 32 of control gas flow.
On the basis of above-mentioned embodiment, the air shooter 31 is additionally provided with gas-drying apparatus (4).
On the basis of above-mentioned embodiment, the width of the inlet opening 21 is 50-80mm, and which is highly 80mm；Described
The external diameter of hollow tubular hood is 70-100mm, and which is highly 100mm；The aperture of the steam vent is 1mm.As specific
Embodiment, the width of the inlet opening 21 are 50mm, its highly for 80mm accordingly, the external diameter of the hollow tubular hood
For 70mm, which is highly 100mm, and used as alternative embodiment, the width of the inlet opening 21 is 80mm, and which is highly
Accordingly, the external diameter of the hollow tubular hood is 100mm to 80mm, and which is highly 100mm.
On the basis of above-mentioned embodiment, the thick calcining charcoal layers of 150～250mm above the melting furnace 1, are coated with
8, the graphite flakes layer 9 of 100～200mm is coated with above the compartment 2 and holding furnace 5；
On the basis of above-mentioned embodiment, when using horizontal continuous-casting, the holding furnace 5 is additionally provided with crystallizer
7 and for produce copper ingot base casting machine 6 and equipped with for cut oxygen-free copper ingot blank 12 sawing machine 10 and be used for oxygen-free copper
The cooling water tank 11 cooled down by ingot blank 12.
As interchangeable embodiment, produced by the way of up casting according to needs of production, can be such as 3
Shown, crystallizer 7 and the casting machine 6 for producing copper ingot base are set on the diverse location of the holding furnace 5.
Adopt said apparatus production high-purity oxygen-free copper ingot blank method for,
(1) operation prepares, and a kind of process units of above-mentioned high-purity oxygen-free copper ingot blank is installed and is ready to, by casting crystalline
Device is installed and is assemblied on holding furnace 5, and casting machine 6 is ready to.Calcining charcoal and graphite flakes are dried and are ready to.
(2) copper is melted：By tough cathode melting sources, copper liquid insertion melting furnace 1, compartment 2 and holding furnace 5.Above melting furnace 1
The thick calcining charcoal layers 8 of ready 150～250mm are covered, above compartment 2 and holding furnace 5, covers ready 100-
The graphite flakes layer 9 of 120mm thickness.5 temperature of holding furnace is set as 1130～1165 DEG C.
(3) degasifier 3 is installed：The proportional concentration of carbon monoxide and nitrogen is regulated, by the gas valve 32 on degasifier 3
Open, gas will be sprayed in some steam vents 33 from below degasifier.Degasifier 3 is inserted and fixed in compartment 2
(4) gas size is adjusted：The gas valve 32 above degasifier 3 is adjusted, and controls the effusion speed of depleted gas
For 0.03-0.07L/min, it is preferable that the ratio of the flow velocity of copper liquid and the effusion speed of the depleted gas in the control compartment 2
For (30-100)：1, the graphite flakes coating 9 that above-mentioned setting will not be broken through on compartment 2.
(5) continuous casting：Start casting machine 6 (Continuous Up casting machine or horizontal continuous-casting machine), a few hours to be drawn
Afterwards, ingot blank oxygen content is checked, as oxygen content as little as below the 5ppm of ingot blank, starts normal production.Subsequently constantly draw, realize
The continuous preparation of high-purity oxygen-free copper ingot blank.
When producing high-purity oxygen-free copper ingot blank using the device of the application, the parameter such as set location and air velocity of degasifier
With the qualitative data of high-purity oxygen-free copper ingot blank, as shown in table 1 below.
1 high-purity oxygen-free copper ingot blank qualitative data of table
As a comparison, the degasifier in the application is directly replaced with hollow plumbago pipe, outside the connection of graphite-pipe one end
Depleted gas source, with to Input gas in copper liquid, its carbon monoxide and nitrogen volume ratio 0.3 in other end insertion copper liquid:1, empty
Heart graphite-pipe is arranged at the middle of compartment, and which exports gas end away from the compartment bottom apart from 200mm, the depleted gas
Effusion speed 0.06L/min, copper liquid and gas flow ratio 80:1, the fluid hole is same with the concrete setting of the inlet opening real
Data 2 are tested, the oxygen content in the copper ingot base that thus produces is determined to 5ppm, copper ingot base density 8.84g/cm3.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus extended obvious change or
Change among still in the protection domain of the invention.
Claims (10)
1. a kind of process units of high-purity oxygen-free copper ingot blank, including being sequentially communicated melting furnace (1), compartment (2) and the insulation of setting
Stove (5), it is characterised in that
Compartment (2) are additionally provided with degasifier (3), and described degasifier (3) include the air shooter of conveying depleted gas
(31) with the hood (33) being connected with the port of export of the air shooter (31) inside the compartment (2), described
Some apertures are provided with hood (33) for 0.5-1mm steam vents；
Melting furnace (1) is connected by inlet opening (21) with the compartment (2), and inlet opening (21) is apart from the compartment (2)
The distance of bottom is 0-10mm；
Hood (33) just to the inlet opening (21) arrange, hood (33) apart from the inlet opening (21) away from
From for 10-40mm；
On copper liquid flow direction, the projection of hood (33) is more than the projection of the inlet opening (21).
2. the process units of high-purity oxygen-free copper ingot blank according to claim 1, it is characterised in that compartment (2) and institute
State holding furnace (5) to be connected by fluid hole (22), fluid hole (22) are located at same level with the inlet opening (21)
Interior, and the fluid hole (22) is 15- with the line of the inlet opening (21) with the angle of the inlet opening (21) center line
40°.
3. the process units of high-purity oxygen-free copper ingot blank according to claim 1 and 2, it is characterised in that the hood
(33) it is hollow tubular structure, its one end is connected with the air shooter (31), other end sealing is arranged, the steam vent
It is evenly distributed on the perisporium of hollow tubular hood.
4. according to the process units of the arbitrary described high-purity oxygen-free copper ingot blank of claim 1-3, it is characterised in that the gas is defeated
The entrance point of pipe (31) is sent to be connected with the depleted gas delivery source outside the process units, and the air shooter (31)
It is additionally provided with the air valve (32) of control gas flow.
5. according to the process units of the arbitrary described high-purity oxygen-free copper ingot blank of claim 1-4, it is characterised in that
Air shooter (31) are additionally provided with gas-drying apparatus (4).
6. according to the process units of the arbitrary described high-purity oxygen-free copper ingot blank of claim 3-5, it is characterised in that the inlet opening
(21) width is 50-80mm, and which is highly 80mm；
The external diameter of the hollow tubular hood is 70-100mm, and which is highly 100mm；
The aperture of the steam vent is 1mm.
7. according to the process units of the arbitrary described high-purity oxygen-free copper ingot blank of claim 1-6, it is characterised in that the melting furnace
(1) the calcining charcoal layer (8) of the drying of 150～250mm of thickness is coated with above, is covered above compartment (2) and holding furnace (5)
It is stamped the graphite flakes layer (9) of 100～200mm of thickness；
Holding furnace (5) are additionally provided with crystallizer (7) and the casting machine (6) for producing copper ingot base.
8. the method that a kind of arbitrary process units of utilization claim 1-7 produces high-purity oxygen-free copper ingot blank, including,
Depleted gas are passed through in degasifier (3), and the effusion speed of the depleted gas is 0.03-0.07L/min；
The depleted gas are the mixed gas of carbon monoxide or carbon monoxide and nitrogen, are carbon monoxide in the depleted gas
With the mixed gas of nitrogen, the carbon monoxide is (0.2-0.5) with the volume ratio of nitrogen：1.
9. the method that process units produces high-purity oxygen-free copper ingot blank according to claim 8, including,
In compartment (2), the flow velocity of copper liquid is 30 with the ratio of the effusion speed of the depleted gas：1～100：1.
10. the method that process units produces high-purity oxygen-free copper ingot blank according to claim 8 or claim 9, including,
(1), after constantly melt negative electrode copper raw material, melting furnace (1), compartment (2) and holding furnace (5) described in copper liquid insertion are treated described
When copper liquid in holding furnace (5) highly meets casting demand, the temperature for arranging holding furnace (5) is 1130-1165 DEG C；
(2) depleted gas are passed through in the compartment (2), to remove the oxygen in copper liquid；
(3) start casting machine production oxygen-free copper ingot blank, and detect the oxygen content in oxygen-free copper ingot blank, treat that its oxygen content is less than 5ppm
Afterwards, keep traction, produces high-purity oxygen-free copper ingot blank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016111086880 | 2016-12-06 | ||
| CN201611108688 | 2016-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106498180A true CN106498180A (en) | 2017-03-15 |
| CN106498180B CN106498180B (en) | 2018-03-13 |
Family
ID=58330871
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621364552.1U Active CN206337298U (en) | 2016-12-06 | 2016-12-13 | A kind of process units of high-purity oxygen-free copper ingot blank |
| CN201611145890.0A Active CN106498180B (en) | 2016-12-06 | 2016-12-13 | A kind of process units and method of high-purity oxygen-free copper ingot blank |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621364552.1U Active CN206337298U (en) | 2016-12-06 | 2016-12-13 | A kind of process units of high-purity oxygen-free copper ingot blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN206337298U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177738A (en) * | 2017-04-28 | 2017-09-19 | 重庆市永川区益锐机械有限责任公司 | Oxygen-free copper foundry furnace |
| CN107354508A (en) * | 2017-08-01 | 2017-11-17 | 尚成荣 | A kind of monocrystalline conductive copper bar smelting apparatus |
| CN107354316A (en) * | 2017-07-31 | 2017-11-17 | 尚成荣 | A kind of copper smelting apparatus for being easy to detect fused solution component |
| CN107377913A (en) * | 2017-06-09 | 2017-11-24 | 芜湖云邦铜业有限公司 | A kind of quick deoxidization technique of molten copper protected using nitrogen |
| CN109182774A (en) * | 2018-10-30 | 2019-01-11 | 佛山市华鸿铜管有限公司 | Online deoxidation casting apparatus and method |
| CN110343879A (en) * | 2019-07-26 | 2019-10-18 | 浙江天宁合金材料有限公司 | A kind of anaerobic Kufil founding production method |
| CN110629038A (en) * | 2019-10-28 | 2019-12-31 | 河南科技大学 | Deoxidation and desulfurization method for copper or copper alloy, high-purity copper or copper alloy and preparation method thereof |
| CN111304458A (en) * | 2020-03-27 | 2020-06-19 | 芜湖楚江合金铜材有限公司 | High accuracy red copper contact pin production is with deoxidization smelting unit |
| JP2020519759A (en) * | 2017-05-10 | 2020-07-02 | ハルドール・トプサー・アクチエゼルスカベット | Method for reducing oxygen content in metallic copper |
| CN111822529A (en) * | 2020-07-20 | 2020-10-27 | 安徽楚江高新电材有限公司 | Preparation method of high-strength high-conductivity copper wire for new energy automobile |
| CN112553474A (en) * | 2020-11-04 | 2021-03-26 | 芜湖楚江合金铜材有限公司 | Smelt nitrogen gas mixing stirring device for compartment |
| CN112725634A (en) * | 2019-10-14 | 2021-04-30 | 中铝洛阳铜加工有限公司 | Production process method of low-oxygen large-tonnage oxygen-free copper ingot |
| CN113182499A (en) * | 2021-05-03 | 2021-07-30 | 芜湖恒泰有色线材股份有限公司 | Technology for adding nitrogen into carbon monoxide for quick deoxidization in copper smelting by upward drawing method |
| CN114226664A (en) * | 2021-12-30 | 2022-03-25 | 江西慧高导体科技有限公司 | Continuous smelting furnace and ingot casting system with same |
| CN114951576A (en) * | 2022-06-16 | 2022-08-30 | 江西万兴铜业有限公司 | Method and process for producing high-purity copper rod by up-drawing method |
| CN117684013A (en) * | 2024-01-31 | 2024-03-12 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
| CN117684013B (en) * | 2024-01-31 | 2024-06-07 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004300525A (en) * | 2003-03-31 | 2004-10-28 | Furukawa Electric Co Ltd:The | Continuous deoxidation method for molten copper, and device therefor |
| CN101274363A (en) * | 2008-05-06 | 2008-10-01 | 浙江海亮股份有限公司 | Method for continuously converting and casting oxygen-free copper ingot |
| CN202047116U (en) * | 2011-03-18 | 2011-11-23 | 绍兴市力博电气有限公司 | Continuous oxygen-free copper degassing and casting device |
| CN102564131A (en) * | 2012-02-20 | 2012-07-11 | 绍兴市力博电气有限公司 | Device and method for continuous smelting of high-purity high-conductivity copper |
-
2016
- 2016-12-13 CN CN201621364552.1U patent/CN206337298U/en active Active
- 2016-12-13 CN CN201611145890.0A patent/CN106498180B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004300525A (en) * | 2003-03-31 | 2004-10-28 | Furukawa Electric Co Ltd:The | Continuous deoxidation method for molten copper, and device therefor |
| CN101274363A (en) * | 2008-05-06 | 2008-10-01 | 浙江海亮股份有限公司 | Method for continuously converting and casting oxygen-free copper ingot |
| CN202047116U (en) * | 2011-03-18 | 2011-11-23 | 绍兴市力博电气有限公司 | Continuous oxygen-free copper degassing and casting device |
| CN102564131A (en) * | 2012-02-20 | 2012-07-11 | 绍兴市力博电气有限公司 | Device and method for continuous smelting of high-purity high-conductivity copper |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177738A (en) * | 2017-04-28 | 2017-09-19 | 重庆市永川区益锐机械有限责任公司 | Oxygen-free copper foundry furnace |
| US11753700B2 (en) | 2017-05-10 | 2023-09-12 | Haldor Topsøe A/S | Process for reducing the content of oxygen in metallic copper |
| JP2020519759A (en) * | 2017-05-10 | 2020-07-02 | ハルドール・トプサー・アクチエゼルスカベット | Method for reducing oxygen content in metallic copper |
| CN107377913A (en) * | 2017-06-09 | 2017-11-24 | 芜湖云邦铜业有限公司 | A kind of quick deoxidization technique of molten copper protected using nitrogen |
| CN107354316A (en) * | 2017-07-31 | 2017-11-17 | 尚成荣 | A kind of copper smelting apparatus for being easy to detect fused solution component |
| CN107354508A (en) * | 2017-08-01 | 2017-11-17 | 尚成荣 | A kind of monocrystalline conductive copper bar smelting apparatus |
| CN109182774A (en) * | 2018-10-30 | 2019-01-11 | 佛山市华鸿铜管有限公司 | Online deoxidation casting apparatus and method |
| CN110343879A (en) * | 2019-07-26 | 2019-10-18 | 浙江天宁合金材料有限公司 | A kind of anaerobic Kufil founding production method |
| CN112725634A (en) * | 2019-10-14 | 2021-04-30 | 中铝洛阳铜加工有限公司 | Production process method of low-oxygen large-tonnage oxygen-free copper ingot |
| CN110629038A (en) * | 2019-10-28 | 2019-12-31 | 河南科技大学 | Deoxidation and desulfurization method for copper or copper alloy, high-purity copper or copper alloy and preparation method thereof |
| CN110629038B (en) * | 2019-10-28 | 2021-11-19 | 河南科技大学 | Deoxidation and desulfurization method for copper or copper alloy, high-purity copper or copper alloy and preparation method thereof |
| CN111304458A (en) * | 2020-03-27 | 2020-06-19 | 芜湖楚江合金铜材有限公司 | High accuracy red copper contact pin production is with deoxidization smelting unit |
| CN111822529A (en) * | 2020-07-20 | 2020-10-27 | 安徽楚江高新电材有限公司 | Preparation method of high-strength high-conductivity copper wire for new energy automobile |
| CN112553474A (en) * | 2020-11-04 | 2021-03-26 | 芜湖楚江合金铜材有限公司 | Smelt nitrogen gas mixing stirring device for compartment |
| CN113182499A (en) * | 2021-05-03 | 2021-07-30 | 芜湖恒泰有色线材股份有限公司 | Technology for adding nitrogen into carbon monoxide for quick deoxidization in copper smelting by upward drawing method |
| CN114226664A (en) * | 2021-12-30 | 2022-03-25 | 江西慧高导体科技有限公司 | Continuous smelting furnace and ingot casting system with same |
| CN114226664B (en) * | 2021-12-30 | 2023-09-15 | 江西慧高导体科技有限公司 | Continuous smelting furnace and ingot casting system with same |
| CN114951576A (en) * | 2022-06-16 | 2022-08-30 | 江西万兴铜业有限公司 | Method and process for producing high-purity copper rod by up-drawing method |
| CN114951576B (en) * | 2022-06-16 | 2024-04-05 | 江西万兴铜业有限公司 | Method and process for producing high-purity copper rod by upward-pulling method |
| CN117684013A (en) * | 2024-01-31 | 2024-03-12 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
| CN117684013B (en) * | 2024-01-31 | 2024-06-07 | 赤峰金通铜业有限公司 | Device and method for reducing incidence rate of copper smelting indium beryllium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206337298U (en) | 2017-07-18 |
| CN106498180B (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206337298U (en) | A kind of process units of high-purity oxygen-free copper ingot blank | |
| CN103820685B (en) | Strength aluminium alloy line and preparation method thereof in conductance 60%IACS | |
| CN101781712B (en) | Runner type online degassing device | |
| CN203495173U (en) | Large-diameter high-purity oxygen-free copper casting blank horizontal continuous casting conjoined furnace | |
| CN102168180A (en) | Upcast method for producing high-purity bright copper rod | |
| CN108517419A (en) | A kind of oxygen-free copper bar production method | |
| CN107052290A (en) | A kind of production technology of high-purity oxygen-free high conductivity type copper bar | |
| CN106424197A (en) | Processing technology for high-purity and high-electric conductivity oxygen-free copper wire | |
| CN110629180B (en) | Production device and method for large-size oxygen-free copper ingot applied to target material | |
| CN101274364B (en) | Furnace for converting and casting oxygen-free copper ingot | |
| CN102564131A (en) | Device and method for continuous smelting of high-purity high-conductivity copper | |
| CN101274363B (en) | Method for continuously converting and casting oxygen-free copper ingot | |
| CN103464709A (en) | Large-diameter high-purity oxygen-free copper cast blank horizontal continuous casting process and connected furnace | |
| CN103255266A (en) | Bottom powder spraying/vacuum degassing molten steel refining device and method | |
| CN105537549A (en) | Production method of continuous casting round billet of seamless steel tube steel at low temperature of minus 100 DEG C | |
| CN107177738A (en) | Oxygen-free copper foundry furnace | |
| CN201979055U (en) | Horizontal continuous ingot casting crystallizer | |
| CN104107889A (en) | Horizontal-continuous-casting production process and graphite die device of large-section nodular cast iron | |
| CN101639326B (en) | Smelting furnace | |
| US7264767B2 (en) | Method and device for reducing the oxygen content of a copper melt | |
| CN202047116U (en) | Continuous oxygen-free copper degassing and casting device | |
| CN202519320U (en) | Continuous high-purity high-conductivity smelting device | |
| CN104249149A (en) | Channel type induction heating pouring basket and pouring method thereof | |
| CN206405401U (en) | A kind of air blowing device for deoxidizing applied to upward-casting process | |
| CN110722330A (en) | Production method of ultra-low carbon steel wire rod for electric conduction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Production device and method of high-purity oxygen-free copper ingot billet Effective date of registration: 20200522 Granted publication date: 20180313 Pledgee: Yingtan rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: JIANGXI GUANGXIN NEW MATERIALS Co.,Ltd. Registration number: Y2020360000040 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |