CN106895702A - It is a kind of to tackle method, the production technology of oxygen-free copper bar that channel disconnects failure - Google Patents
It is a kind of to tackle method, the production technology of oxygen-free copper bar that channel disconnects failure Download PDFInfo
- Publication number
- CN106895702A CN106895702A CN201710128053.5A CN201710128053A CN106895702A CN 106895702 A CN106895702 A CN 106895702A CN 201710128053 A CN201710128053 A CN 201710128053A CN 106895702 A CN106895702 A CN 106895702A
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- China
- Prior art keywords
- channel
- copper
- furnace
- liquid level
- charcoal
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B14/061—Induction furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/01—Charges containing mainly non-ferrous metals
- F27M2001/015—Copper
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
Method, the production technology of oxygen-free copper bar that channel disconnects failure are tackled the invention provides a kind of, the production technology includes methods described, and the method includes using following furnace stopping process to induction channel furnace：When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, the charcoal of preset thickness is covered on copper liquid liquid level, the charcoal is kept burning；The voltage of the hot-wire coil is transferred to 250V or 270V, power supply is closed after being kept for 5~10 minutes.The method that the present invention is provided can successfully manage channel and disconnect failure, reduce business economic loss.
Description
Technical field
The present invention relates to upper lead conticaster technical group field, more particularly to it is a kind of tackle channel disconnect failure method,
The production technology of oxygen-free copper bar.
Background technology
Continuous up-casting unit is the equipment for producing oxygen-free copper bar, and power frequency induction furnace is crucial molten in continuous up-casting unit
Change equipment, power frequency induction furnace is mainly made up of body of heater, grate and inductor three parts, wherein, inductor part is by coil, water
Set, iron core and channel (channel is shown in Fig. 1) composition.
The operation principle of power frequency induction furnace is equivalent to the transformer worked under short-circuit condition, the high-pressure side (primary) of inductor
It is made up of the coil with water-cooled, low-pressure side (secondary) is made up of the channel of short circuit, and during work, hot-wire coil is equivalent to primary line
Circle, equivalent to secondary coil, after primary winding is powered, the metal in channel is heated channel due to producing induced-current,
When plane in heat transfer to channel, the metal temperature in burner hearth constantly rises, and causes metal molten.
Channel disconnects the general appearance in blowing out or secondary blow-on, because the channel first half is in curdled appearance, lower half
In molten state, lower half copper liquid shrinks when solidifying, and may result in upper and lower part and separates, that is, cause channel to disconnect.
Failure, the i.e. secondary coil equivalent to inductor being disconnected if there is channel and being in off state, now secondary current is zero, stove
Son just loses smelting capacity, causes stove to scrap.Therefore, how to successfully manage channel disconnection failure becomes people in the art
Member's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, method, the production technology of oxygen-free copper bar that channel disconnects failure, institute are tackled the invention provides a kind of
Stating production technology includes methods described, and the method can successfully manage channel and disconnect failure, reduce business economic loss.
In order to achieve the above object, the present invention provides following technical scheme：
It is a kind of to tackle the method that channel disconnects failure, including following furnace stopping process is used to induction channel furnace：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, in copper liquid liquid level overlying
The charcoal of lid preset thickness, makes the charcoal keep burning；
The voltage of the hot-wire coil is transferred to 250V or 270V, power supply is closed after being kept for 5~10 minutes.
Preferably, in the above-mentioned methods, the preset thickness is 10cm~20cm.
Preferably, in the above-mentioned methods, it is further comprising the steps of before charcoal is covered in the furnace stopping process：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, by the electricity of hot-wire coil
Pressure is transferred to 210V or 180V；
After the copper liquid in other regions in addition to plane corresponding region on channel solidifies, using default part to plane on channel
The copper liquid of corresponding region is dipped, and is down to the copper liquid liquid level for being dipped region concordant with the furnace bottom face.
Preferably, in the above-mentioned methods, the default part is copper bar or copper wire.
Preferably, in the above-mentioned methods, the process of the start-up that the induction channel furnace is used is comprised the following steps：
To the In Crystal Solid Copper repeated melting in channel-dip until dipping in the gap of the channel, filled out in the gap
Entering copper conductor makes the two ends of the gap form electrical connection.
Preferably, in the above-mentioned methods, in the process of the start-up, the In Crystal Solid Copper in channel is carried out using flame gun
Fusing.
Preferably, in the above-mentioned methods, in the process of the start-up, the length of the shower nozzle of the flame gun for 20cm~
30cm。
Preferably, in the above-mentioned methods, in the process of the start-up, the copper conductor inserted is broken copper billet, and is inserted
The broken copper billet is tamped afterwards.
Preferably, in the above-mentioned methods, in the process of the start-up, also included before the fusing for the first time-dip
Following steps：The water source of the water jacket of the hot-wire coil is closed, or, turn down the water flux density in the water jacket.
A kind of production technology of oxygen-free copper bar, including the method that reply channel disconnects failure, methods described is to appoint as described above
Method disclosed in meaning one.
It can be seen from above-mentioned technical proposal, the reply channel that the present invention is provided is disconnected in the method for failure, will in blowing out
Copper liquid liquid level in burner hearth falls below very low position, thus freeze profile into In Crystal Solid Copper amount it is less, it is so cold in blowing out
But during, the heat in channel scatters and disappears less, and the cooling velocity on channel top is unlikely to too fast.Meanwhile, fired on copper liquid liquid level
The cooling velocity that charcoal further slow down channel top is burnt, channel top can be made to try one's best what is be consistent with channel bottom
Cooling velocity.As can be seen here, the method that the present invention is provided is conducive to avoiding channel top from forming solid-state too quickly than channel bottom
Copper, failure is disconnected so as to effectively cope with channel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the schematic diagram of channel in channel formula inductor；
Fig. 2 is the flow chart of the method that a kind of reply channel that the embodiment of the present invention two is provided disconnects failure.
Specific embodiment
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
It is the schematic diagram of channel in channel formula inductor referring to Fig. 1, in the prior art, when channel disconnects to be occurred, in order to
Fix a breakdown, workman gos deep into channel inside and beats with drill rod sometimes, it is therefore an objective to wish that the copper solid of channel upper end solidification passes through
Can be connected together with the channel of bottom after hammering, be powered after short circuit, you can recover melting capacity.However, this method into
Power is very low, simultaneously as cannot judge channel disconnect position, with drill rod go deep into channel beat be easy to damage channel it is attached
Near refractory material, causes body of heater potential safety hazard.
In addition, for the disconnection at the position 1 of diagram, the above method is perhaps applicable, but it is in the position of diagram when disconnecting
Put when at 2, due to having turn between plane on position 2 and channel, the above method is difficult to carry out.
Failure is disconnected in order to tackle channel, can be prevented trouble before it happens, therefore, a kind of reply that the embodiment of the present invention one is provided
The method that channel disconnects failure includes using following furnace stopping process to induction channel furnace：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, in copper liquid liquid level overlying
The charcoal of lid preset thickness, makes charcoal keep burning；
The voltage of hot-wire coil is transferred to 250V or 270V, power supply is closed after being kept for 5~10 minutes.
In specific practical application, the preset thickness of charcoal can be 10cm~20cm.
It is very low due to falling below the copper liquid liquid level in burner hearth in blowing out in the method that the embodiment of the present invention one is provided
Position, thus freeze profile into In Crystal Solid Copper amount it is less, so in blowing out cooling procedure, heat in channel scatter and disappear it is few,
The cooling velocity on channel top is unlikely to too fast.Meanwhile, burning charcoal further slow down channel top on copper liquid liquid level
Cooling velocity, channel top and channel bottom can be made to try one's best the cooling velocity being consistent.As can be seen here, the above method has
Beneficial to avoiding channel top from forming In Crystal Solid Copper too quickly than channel bottom, failure is disconnected so as to effectively cope with channel.
It is a kind of flow chart of the method for reply channel disconnection failure that the embodiment of the present invention two is provided referring to Fig. 2.
On the basis of embodiment one, the embodiment two that the present invention is provided is differed only in embodiment one, in blowing out
It is further comprising the steps of before charcoal is covered in technique：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, by the electricity of hot-wire coil
Pressure is transferred to 210V or 180V；
After the copper liquid in other regions in addition to plane corresponding region on channel solidifies, using default part to plane on channel
The copper liquid of corresponding region is dipped, and is down to the copper liquid liquid level for being dipped region concordant with furnace bottom face.
On the basis of embodiment one, embodiment two reduce further the copper liquid liquid level of plane corresponding region on channel,
The In Crystal Solid Copper small volume that so channel top is formed, if channel occurs after blowing out disconnects failure, due to channel top In Crystal Solid Copper
Amount is few, and dealing with to be easier.
In specific practical application, default part can be copper bar or copper wire.Certainly, except the default part of copper material, it is also possible to
With the default part of other materials, as long as copper liquid can be dipped.
Failure is disconnected in order to preferably tackle channel, channel is formed when preventing blowing out except that should try one's best and is disconnected, can also use up
Amount rapidly removing faults in blow-on, that is, provide it is a kind of the first aid mode after occurring is disconnected in channel, therefore, in embodiment one or
On the basis of embodiment two, a kind of reply channel that the embodiment of the present invention three is provided is disconnected in the method for failure, to channel formula sense
The process of the start-up for answering stove to use is comprised the following steps：
To the In Crystal Solid Copper repeated melting in channel-dip until dipping in the gap of channel, copper conductor is inserted in gap
The two ends of gap are made to form electrical connection.
" melt-dip " refers to, the In Crystal Solid Copper of upper surface first is melted into sub-fraction, then will melt the copper liquid for being formed and dips in
Walk, expose unfused In Crystal Solid Copper.By repeating to melt-dip, just can quickly by plane on channel and gap it
Between solid copper get through, finally insert gap from getting through the passage to be formed and be sent into copper conductor, be successfully formed short-circuit connection, exclude
Channel disconnects failure.
In specific practical application, it is possible to use flame gun melts to the In Crystal Solid Copper in channel, the spray of flame gun
The length of head is generally 20cm~30cm.
The copper conductor inserted can be a monoblock copper, such as copper rod, or substantial amounts of broken copper billet, in specific practical application
It is preferred that broken copper billet, tamps broken copper billet after inserting, good electrical connection is formed to ensure, eliminate channel and disconnect.
In order to reduce heat losses as far as possible, enable the In Crystal Solid Copper rapid melting in channel, on the basis of embodiment three,
The example IV that the present invention is provided is differed only in embodiment three, in process of the start-up, before first time melts-dips
It is further comprising the steps of：The water source of the water jacket of hot-wire coil is closed, or, turn down the water flux density in water jacket.
Present invention also offers a kind of production technology of oxygen-free copper bar, the production technology includes that above-described embodiment is disclosed and answers
The method that failure is disconnected to channel.Because method disclosed in above-described embodiment has above-mentioned technique effect, therefore with the method
Oxygen-free copper bar production technology equally have above-mentioned technique effect, repeat no more herein.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
Can be restricted to embodiment illustrated herein, and be to fit to consistent with principles disclosed herein and features of novelty most wide
Scope.
Claims (10)
1. it is a kind of to tackle the method that channel disconnects failure, it is characterised in that including using following blowing out work to induction channel furnace
Skill：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, cover pre- on copper liquid liquid level
If the charcoal of thickness, the charcoal is set to keep burning；
The voltage of the hot-wire coil is transferred to 250V or 270V, power supply is closed after being kept for 5~10 minutes.
2. method according to claim 1, it is characterised in that the preset thickness is 10cm~20cm.
3. method according to claim 1, it is characterised in that in the furnace stopping process, also wrapped before charcoal is covered
Include following steps：
When bar operation is drawn so that the copper liquid liquid level in burner hearth is down to apart from furnace bottom face 6cm~3cm, the voltage of hot-wire coil is adjusted
To 210V or 180V；
After the copper liquid in other regions in addition to plane corresponding region on channel solidifies, using default part to plane correspondence on channel
The copper liquid in region is dipped, and is down to the copper liquid liquid level for being dipped region concordant with the furnace bottom face.
4. method according to claim 3, it is characterised in that the default part is copper bar or copper wire.
5. the method according to any one in Claims 1 to 4, it is characterised in that used to the induction channel furnace
Process of the start-up comprise the following steps：
To the In Crystal Solid Copper repeated melting in channel-dip until dipping in the gap of the channel, copper is inserted in the gap
Conductor makes the two ends of the gap form electrical connection.
6. method according to claim 5, it is characterised in that in the process of the start-up, using flame gun to channel
Interior In Crystal Solid Copper is melted.
7. method according to claim 6, it is characterised in that in the process of the start-up, the shower nozzle of the flame gun
Length be 20cm~30cm.
8. method according to claim 5, it is characterised in that in the process of the start-up, the copper conductor inserted is
Broken copper billet, and tamp the broken copper billet after inserting.
9. method according to claim 5, it is characterised in that in the process of the start-up, in the fusing for the first time-dip in
It is further comprising the steps of before taking：The water source of the water jacket of the hot-wire coil is closed, or, the current turned down in the water jacket lead to
Amount.
10. a kind of production technology of oxygen-free copper bar, it is characterised in that including the method that reply channel disconnects failure, methods described
It is the method as described in any one in claim 1~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128053.5A CN106895702B (en) | 2017-03-06 | 2017-03-06 | method for coping with disconnection fault of molten channel and production process of oxygen-free copper rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128053.5A CN106895702B (en) | 2017-03-06 | 2017-03-06 | method for coping with disconnection fault of molten channel and production process of oxygen-free copper rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106895702A true CN106895702A (en) | 2017-06-27 |
| CN106895702B CN106895702B (en) | 2020-01-31 |
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| CN201710128053.5A Active CN106895702B (en) | 2017-03-06 | 2017-03-06 | method for coping with disconnection fault of molten channel and production process of oxygen-free copper rod |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2125768A1 (en) * | 1971-05-25 | 1972-12-07 | Junker O | Grey cast iron melting channel loop induction furnace with - water-cooled coil |
| CN2935054Y (en) * | 2006-07-07 | 2007-08-15 | 陈行满 | Multi-layer covered core induction main frequency furnace |
| CN101718491A (en) * | 2009-12-14 | 2010-06-02 | 洛阳双瑞达特铜有限公司 | Process method for reopening old furnace of cored line-frequency induction electric furnace for producing copper-nickel alloy |
| CN102798289A (en) * | 2012-06-25 | 2012-11-28 | 新兴铸管（浙江）铜业有限公司 | Emergency method for channel breakage of power frequency cored induction electric furnace for pure copper smelting |
| CN203980885U (en) * | 2014-06-09 | 2014-12-03 | 浙江天宁合金材料有限公司 | Power frequency smelting furnace |
-
2017
- 2017-03-06 CN CN201710128053.5A patent/CN106895702B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2125768A1 (en) * | 1971-05-25 | 1972-12-07 | Junker O | Grey cast iron melting channel loop induction furnace with - water-cooled coil |
| CN2935054Y (en) * | 2006-07-07 | 2007-08-15 | 陈行满 | Multi-layer covered core induction main frequency furnace |
| CN101718491A (en) * | 2009-12-14 | 2010-06-02 | 洛阳双瑞达特铜有限公司 | Process method for reopening old furnace of cored line-frequency induction electric furnace for producing copper-nickel alloy |
| CN102798289A (en) * | 2012-06-25 | 2012-11-28 | 新兴铸管（浙江）铜业有限公司 | Emergency method for channel breakage of power frequency cored induction electric furnace for pure copper smelting |
| CN203980885U (en) * | 2014-06-09 | 2014-12-03 | 浙江天宁合金材料有限公司 | Power frequency smelting furnace |
Non-Patent Citations (3)
| Title |
|---|
| 周俊芳，***: "浅谈水平连铸感应电炉熔沟断裂", 《有色金属加工》 * |
| 杨爱丽，许晶: "无氧铜杆上引连铸工频有芯电炉旧炉重启工艺实践", 《黑龙江冶金》 * |
| 王全仁，等: "工频有芯感应电炉安全使用技术实践", 《有色金属加工》 * |
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| CN106895702B (en) | 2020-01-31 |
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Address after: 252000 Xiangguang Road, Shifo Town, Yanggu County, Liaocheng City, Shandong Province Patentee after: Shandong Xiangrui Metal Technology Co.,Ltd. Address before: 252327 No.1 Xiangguang Road, Shifo Town, Yanggu County, Liaocheng City, Shandong Province Patentee before: XIANGRUI Co.,Ltd. |