CN206337298U - A kind of process units of high-purity oxygen-free copper ingot blank - Google Patents
A kind of process units of high-purity oxygen-free copper ingot blank Download PDFInfo
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- CN206337298U CN206337298U CN201621364552.1U CN201621364552U CN206337298U CN 206337298 U CN206337298 U CN 206337298U CN 201621364552 U CN201621364552 U CN 201621364552U CN 206337298 U CN206337298 U CN 206337298U
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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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
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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
- 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
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model provides a kind of process units of high-purity oxygen-free copper ingot blank, melting furnace, compartment and holding furnace including being sequentially communicated setting, the compartment is additionally provided with degasifier, some apertures are provided with the hood that the degasifier includes the air shooter of conveying depleted gas and is connected inside the compartment with the port of export of the air shooter, the hood for 0.5 1mm steam vents；The melting furnace is connected with the compartment by inlet opening, and the hood is just set to the inlet opening, and the hood is 10 40mm apart from the distance of the inlet opening；On copper liquid flow direction, projection of the projection more than the inlet opening of the hood.Compactness can be produced using the device of the application good, hypoxic high-purity oxygen-free copper ingot blank.
Description
Technical field
The utility model is related to technical field of nonferrous metal processing, and in particular to a kind of production dress of high-purity oxygen-free copper ingot blank
Put.
Background technology
Oxygen-free copper refers to the not oxygen-containing also fine copper without any deoxidier residue, but actually still contain in oxygen-free copper
Very micro oxygen and some impurity.By 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).Due to Oxygen in Oxygen-Free Copper and impurity content is low, purity is high makes it have splendid electrical and thermal conductivity and extension
Property, and air penetrability is low, processing characteristics and welding, anti-corrosion, cold resistance are also preferable.Especially TU0 oxygen-free coppers due to oxygen content it is not high
In 5ppm, also known as high-purity oxygen-free copper 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
How efficient deoxidation turns into the key technology for preparing high-quality oxygen-free copper in the production process of 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 into copper liquid and are dispersed as micro-bubble, it is 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
Taken away during floating.But in copper liquid in addition to containing free oxygen, more importantly copper reacts the oxygen of generation under melting state with oxygen
Change the oxide for reacting generation in copper and cuprous oxide, and copper liquid under trace impurity high temperature with oxygen, using point in above-mentioned document
Pressure difference mode can not slough the oxygen contained in cupric oxide in copper, cuprous oxide and oxide impurity, thus in copper oxygen content
Still it is higher.
Therefore, Chinese patent literature CN101274363A discloses a kind of method for continuously converting and casting oxygen-free copper ingot, its work
Skill step includes, and tough cathode first melts in smelting furnace, and the copper liquid after fusing enters deoxidation stove by bottom blowing chute, by an oxidation
The mixed gas of carbon gas or carbon monoxide and nitrogen, is entered in the copper liquid in bottom blowing chute by bottom blowing its bottom, and with
Entrance deoxidation stove in realize the first stage deoxidation degassing, in the guiding gutter by bottom blowing furnace head by carbon monoxide or one
The mixed gas of carbonoxide and nitrogen enters in the copper liquid in guiding gutter, and the deoxidation of second stage is carried out to the copper liquid in guiding gutter
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 in disperse shape with copper liquid phase, and the gas being blown into is entered by copper liquid bottom, a side
Face, its gas is difficult to equably in the melt pass through in floating-upward process, and most of copper liquid are had to by copper not in contact with to gas
Slow diffusion completes deoxidation or degasification between liquid, and efficiency is low, effect is poor, and deoxidation effect is difficult to stabilization.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 is improved, and respectively
Gas is connected with smelting furnace and chute two, air consumption is also resulted in greatly, wastes obvious.Most of all, copper liquid bottom passes through
Air brick realizes arrangement of blowing, and air brick is easily blocked or avalanche, when partial-air admission hole plug or destruction, it is impossible in production process
It is middle to be judged；When whole air admission holes are destroyed, then it can not change, get only blowing out, and stove of dismantling, time-consuming work consuming is very huge
Greatly.Continuously prepared so the method can not carry out process monitoring, control of product quality and scale aborning.
Utility model content
Therefore, during the technical problems to be solved in the utility model is the production process of existing oxygen-free copper ingot blank, deoxidation gas
Body is contacted with copper liquid not exclusively causes the undesirable defect of deoxidation effect, and then provides a kind of device for deoxidizing, to improve deoxidation gas
Body contacts effect with copper liquid, so as to improve the removal amount of oxygen in copper liquid to greatest extent.
Therefore, the technical solution adopted in the utility model is：
A kind of process units of high-purity oxygen-free copper ingot blank, including it is 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 of conveying depleted gas and inside the compartment
Some aperture 0.5-1mm row is provided with the hood being connected with the port of export of the air shooter, the hood
Stomata；
The melting furnace is connected with the compartment by inlet opening, and distance of the inlet opening apart from the compartment bottom is 0-
10mm；
The hood is just set to the inlet opening, and the hood is 10-40mm apart from the distance of the inlet opening；
On copper liquid flow direction, projection of the projection more than the inlet opening of the hood.
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
The angle of line and the feed liquor centerline hole is 15-40 °.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, the hood is hollow tubular structure, one
End is connected with the air shooter, and other end sealing is set, 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 it is 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 done
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 its height is 100mm；
The aperture of the steam vent is 1mm.
Preferably, in the process units of described high-purity oxygen-free copper ingot blank, above the melting furnace covered with thickness 150~
Graphite flakes layer covered with 100~200mm of thickness above the calcining charcoal layer of 250mm drying, the compartment and holding furnace；
The holding furnace is additionally provided with crystallizer and the casting machine for producing copper ingot base.
The operating procedure of high-purity oxygen-free copper ingot blank is produced using any of the above-described process units, including,
Depleted gas is passed through in the degasifier, the effusion speed of the depleted gas is 0.03-0.07L/min；
The depleted gas is the mixed gas of carbon monoxide or carbon monoxide and nitrogen, is an oxygen in the depleted gas
Change the mixed gas of carbon and nitrogen, the volume ratio of the carbon monoxide and nitrogen is (0.2-0.5)：1.
Preferably, the operating procedure of high-purity oxygen-free copper ingot blank is produced, including,
The ratio between effusion speed of the flow velocity of copper liquid and the depleted gas is 30 in the compartment：1~100：1.
Preferably, the operating procedure of high-purity oxygen-free copper ingot blank is produced, including,
(1) by after negative electrode copper raw material constantly fusing, melting furnace, compartment and holding furnace described in copper liquid insertion treat the insulation
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 is passed through into 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 solutions of the utility model, have the following advantages that：
1. a kind of process units for high-purity oxygen-free copper ingot blank that the utility model is provided, including it is sequentially communicated the fusing of setting
Stove, compartment and holding furnace, the compartment are additionally provided with degasifier, and the degasifier includes the air shooter of conveying depleted gas
With the hood being connected with the port of export of the air shooter inside the compartment, if being provided with the hood
Dry steam vent；The melting furnace is connected with the compartment by inlet opening, and the hood is vertically arranged, and just to it is described enter
Fluid apertures is set, and the hood is 10~40mm apart from the distance of the inlet opening；On copper liquid flow direction, the hood
Projection more than the inlet opening projection.By setting the position of inlet opening and the relative position of hood and inlet opening,
So that it is guaranteed that depleted gas is filled with the position of copper liquid, copper liquid first of the depleted gas with being entered by inlet opening is on the one hand promoted to connect
Touch, improve the local flow state of liquid, depleted gas and the contact area of liquid are improved, on the other hand in the flowing shape of copper liquid
Under state, improve distribution of the depleted gas in copper liquid and scattered, and then remove the oxygen in copper liquid to greatest extent.The position can be protected
All copper liquid passed 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 limitation of above-mentioned ad-hoc location, promoting gas from copper
Discharge in liquid, greatly reduces ingot casting stomata, is conducive to the lifting of strand consistency.
2. a kind of process units for high-purity oxygen-free copper ingot blank that the utility model is provided, the compartment and the holding furnace are logical
Cross fluid hole to be connected, the fluid hole is located in the same horizontal plane with the inlet opening, and the fluid hole and the feed liquor
The angle of the line in hole and the feed liquor centerline hole is 15-40 °.Fluid hole is set in above-mentioned position, on the one hand makes copper liquid stream
Direct insertion is avoided when dynamic, flow dead is formed, copper liquid is added with depleted gas and time of contact to improve deoxidation effect, more
Importantly, due to the process that floating of the gas such as the diffusion of depleted gas and carbon dioxide, nitrogen etc. is escaped from copper liquid,
The change of Local Copper liquid micro flow state is easily caused, sets fluid hole that holding furnace liquid level can be made to remain flat in above-mentioned position
Surely, and then stable castability.
3. during the process units production high-purity oxygen-free copper ingot blank of the high-purity oxygen-free copper ingot blank provided using the utility model, institute
State and depleted gas is passed through in degasifier, from hood discharge, the effusion speed of the depleted gas is 0.03~0.07L/
min；The ratio between effusion speed of the flow of copper liquid and the depleted gas is 30 in the compartment (2)：1~100：1.Pass through deoxidation
The control of gas flow rate and copper flow quantity, promotes depleted gas contact with copper liquid and the diffusion in copper liquid, adds de-
Oxygen effect, makes the oxygen content of the high-purity oxygen-free copper ingot blank of production be less than 1ppm.
4. a kind of process units for high-purity oxygen-free copper ingot blank that the utility model is provided, described hood just to it is described enter
Fluid apertures is set, to be inserted from above in copper liquid, is fixed on above table, thus position is adjustable, fetch and deliver conveniently, it is safe and reliable.It is this
Design not only makes and installed simple, and hood can easily be checked, safeguarded and changed, and then realizes deoxidation process
Monitor, can adjust, can handle, realize the completely continuous manufacturing of anaerobic copper ingot.
5. the process units of the high-purity oxygen-free copper ingot blank provided using the utility model produces the original of high-purity oxygen-free copper ingot blank
Manage and be, use CO gas for depleted gas, carbon monoxide has the advantages that deoxidation speed is fast and deoxidation products is not remained.
Nitrogen is mixed in carbon monoxide simultaneously, dehydrogenation effect is realized.In copper liquid following chemical reaction will occur for 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 realize deoxidation.Pass through the design of degasifier, inlet opening, it can be ensured that fully sprayed when entering compartment from melting furnace with degasifier
The gas contact gone out, gas further completes deoxidation in floating-upward process, reaches abundant deoxidation from floating upward quickly after the ejection of bottom
Purpose.
In addition, gas is in floating-upward process, due to not hydrogen in insufflation gas, hydrogen partial pressure is zero, and is dissolved in bubble
The hydrogen partial pressure of neighbouring melt is much larger than zero, based on the difference of hydrogen partial pressure inside and outside bubble, make to be dissolved in hydrogen in melt constantly to
Bubble spreads, and rising and emersion with bubble and be rejected in air, reach the purpose of degasification (hydrogen).The utility model exists
While depth 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, the liquid level agitation that the fluctuation of melting furnace fluid pressure and deoxidation degasification are brought can be effectively buffered, makes holding furnace
Liquid level remains steady, stable castability.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the process units of high-purity oxygen-free copper ingot blank of the present utility model；
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 high-purity oxygen-free copper ingot blank of the utility model.
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 sheets layer；
10- sawing machines, 11- cooling water tanks；12- copper ingot bases.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As long as in addition, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can just be combined with each other.
It is a kind of structural representation of the process units of high-purity oxygen-free copper ingot blank of the present utility model as illustrated in fig. 1 and 2, its
In melting furnace 1, compartment 2 and holding furnace 5 including being sequentially communicated setting, the present embodiment, the melting furnace 1 be 2 750 kilograms/
Hour have a core line-frequency induction smelting electrical furnace, inductor is respectively positioned on immediately below body of heater, for the fusing to copper raw material；The insulation
Stove 5 has a core line-frequency induction smelting electrical furnace for 500 kgs/hour, and for the continuously casting of oxygen-free copper ingot blank, inductor is respectively positioned on
Immediately below body of heater；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 fusing
Stove 1, compartment 2 with keep connecting in holding furnace 5.Through hole close to fusing furnace side is inlet opening 21, and the through hole of insulation furnace side is
Fluid apertures 22, compartment is without heat source.
The compartment 2 is additionally provided with degasifier 3, and the degasifier 3 includes the He of air shooter 31 of conveying depleted gas
Set on the hood 33 being connected positioned at the inside of compartment 2 with the port of export of the air shooter 31, the hood 33
It is equipped with some steam vents；The melting furnace 1 is connected with the compartment 2 by inlet opening 21, and inlet opening 21 is apart from the compartment 2
The distance of bottom is 0-10mm；The hood 33 is just set 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 of hood discharge can fully be contacted with flowing into the liquid of compartment from inlet opening.In above-mentioned embodiment
In, the inlet opening 21 and fluid hole 22 can be provided with it is one or more, each inlet opening 21 correspondence install one it is described de-
Oxygen device.
On the basis of above-mentioned embodiment, the compartment 2 is connected with the holding furnace 5 by fluid hole 22, described
Fluid hole 22 is located in the same horizontal plane with the inlet opening 21, and line and institute of the fluid hole 22 with the inlet opening 21
The angle for stating the center line of inlet opening 21 is 15-40 °.
On the basis of above-mentioned embodiment, the hood 33 is hollow tubular structure, and its one end and the gas are defeated
Pipe 31 is sent to be connected, other end sealing is set, 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, the entrance point of the air shooter 31 and taking off outside 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 its height is 80mm；It is described
The external diameter of hollow tubular hood is 70-100mm, and its height is 100mm；The aperture of the steam vent is 1mm.As specific
Embodiment, the width of the inlet opening 21 is 50mm, its height be 80mm accordingly, the external diameter of the hollow tubular hood
For 70mm, its height is 100mm, as alternative embodiment, and the width of the inlet opening 21 is 80mm, and its height is
Accordingly, the external diameter of the hollow tubular hood is 100mm to 80mm, and its height is 100mm.
On the basis of above-mentioned embodiment, the top of melting furnace 1 is covered with calcining charcoal layer thick 150~250mm
8, graphite flakes layer 9 of the top of compartment 2 and holding furnace 5 covered with 100~200mm；
On the basis of above-mentioned embodiment, when using horizontal continuous-casting, the holding furnace 5 is additionally provided with crystallizer
7 and for producing the casting machine 6 of copper ingot base and equipped with for cutting the sawing machine 10 of oxygen-free copper ingot blank 12 and for oxygen-free copper
The cooling water tank 11 that ingot blank 12 is cooled down.
As interchangeable embodiment, produced according to needs of production by the way of up casting, can be such as 3
It is shown, crystallizer 7 and the casting machine 6 for producing copper ingot base are set on the diverse location of the holding furnace 5.
Use said apparatus produce 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 be ready to.
(2) copper is melted：By tough cathode melting sources, copper liquid insertion melting furnace 1, compartment 2 and holding furnace 5.In the top of melting furnace 1
The thick calcining charcoal layers 8 of ready 150~250mm are covered, in compartment 2 and the ready 100- of the top of holding furnace 5 covering
The graphite flakes layer 9 of 120mm thickness.The temperature of holding furnace 5 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 spray from some steam vents 33 below degasifier.Degasifier 3 is inserted and fixed in compartment 2
(4) gas size is adjusted：The gas valve 32 of the top of degasifier 3 is adjusted, and controls the effusion speed of depleted gas
For 0.03-0.07L/min, it is preferable that the ratio between effusion speed of the flow velocity of copper liquid and 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.Then constantly traction, is realized
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, it is as shown in table 1 below.
The high-purity oxygen-free copper ingot blank qualitative data of table 1
As a comparison, the degasifier in the application is directly replaced with outside hollow plumbago pipe, the connection of graphite-pipe one end
To input gas into copper liquid in depleted gas source, other end insertion copper liquid, its carbon monoxide and nitrogen volume ratio 0.3:1, it is empty
Heart graphite-pipe is arranged at the middle of compartment, its output 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 specific setting of the fluid hole and the inlet opening is same real
Data 2 are tested, the oxygen content in the copper ingot base thus produced 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.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of process units of high-purity oxygen-free copper ingot blank, including it is sequentially communicated melting furnace (1), compartment (2) and the insulation of setting
Stove (5), it is characterised in that
The compartment (2) is additionally provided with degasifier (3), and the degasifier (3) includes the air shooter of conveying depleted gas
(31) hood (33) and inside the compartment (2) being connected with the port of export of the air shooter (31), it is described
Some apertures are provided with hood (33) for 0.5-1mm steam vents；
The melting furnace (1) is connected with the compartment (2) by inlet opening (21), and inlet opening (21) is apart from the compartment (2)
The distance of bottom is 0-10mm；
The hood (33) just to the inlet opening (21) set, the hood (33) apart from the inlet opening (21) away from
From for 10-40mm；
On copper liquid flow direction, the projection of the 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 the compartment (2) and institute
State holding furnace (5) by fluid hole (22) to be connected, the fluid hole (22) is located at same level with the inlet opening (21)
It is interior, and the fluid hole (22) is 15- with the angle of the inlet opening (21) center line with the line of the inlet opening (21)
40°。
3. the process units of high-purity oxygen-free copper ingot blank according to claim 1 or 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 set, the steam vent
On the perisporium for being evenly distributed on hollow tubular hood.
4. the process units of high-purity oxygen-free copper ingot blank according to claim 3, it is characterised in that the air shooter
(31) entrance point is connected with the depleted gas delivery source outside the process units, and the air shooter (31) is also set
It is equipped with the air valve (32) of control gas flow.
5. the process units of high-purity oxygen-free copper ingot blank according to claim 4, it is characterised in that
The air shooter (31) is additionally provided with gas-drying apparatus (4).
6. the process units of the high-purity oxygen-free copper ingot blank according to claim 4 or 5, it is characterised in that the inlet opening
(21) width is 50-80mm, and its height is 80mm；
The external diameter of the hollow tubular hood is 70-100mm, and its height is 100mm；
The aperture of the steam vent is 1mm.
7. the process units of high-purity oxygen-free copper ingot blank according to claim 6, it is characterised in that on the melting furnace (1)
Side the drying covered with 150~250mm of thickness calcining charcoal layer (8), the compartment (2) and holding furnace (5) top covered with
100~200mm of thickness graphite flakes layer (9).
8. the process units of the high-purity oxygen-free copper ingot blank according to claim 1,2,4,5 or 7, it is characterised in that the guarantor
Warm stove (5) is additionally provided with crystallizer (7) and the casting machine (6) for producing copper ingot base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108688 | 2016-12-06 | ||
| CN2016111086880 | 2016-12-06 |
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| Publication Number | Publication Date |
|---|---|
| CN206337298U true CN206337298U (en) | 2017-07-18 |
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| 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 |
| 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 |
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| JP4205469B2 (en) * | 2003-03-31 | 2009-01-07 | 古河電気工業株式会社 | Method and apparatus for continuous deoxidation of molten copper |
| CN101274363B (en) * | 2008-05-06 | 2011-02-02 | 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| CN106498180B (en) | 2018-03-13 |
| CN106498180A (en) | 2017-03-15 |
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Denomination of utility model: Production device and method of high-purity oxygen-free copper ingot billet Effective date of registration: 20191025 Granted publication date: 20170718 Pledgee: Bank of Jiangxi, Limited by Share Ltd, Yingtan branch Pledgor: Jiangxi Guangxin new materials Limited by Share Ltd Registration number: Y2019360000015 |