CN110170629A - A method of reducing shaft furnace copper bar twist irregularity - Google Patents
A method of reducing shaft furnace copper bar twist irregularity Download PDFInfo
- Publication number
- CN110170629A CN110170629A CN201910606462.0A CN201910606462A CN110170629A CN 110170629 A CN110170629 A CN 110170629A CN 201910606462 A CN201910606462 A CN 201910606462A CN 110170629 A CN110170629 A CN 110170629A
- Authority
- CN
- China
- Prior art keywords
- copper
- copper bar
- shaft furnace
- heat
- slab
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/117—Refining the metal by treating with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/119—Refining the metal by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
-
- 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
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0032—Bath smelting or converting in shaft furnaces, e.g. blast furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention relates to equipment of industrial product technical fields, and disclose a kind of method for reducing shaft furnace copper bar twist irregularity, it comprises the following production steps that 1) ingredient pretreatment: the copper scrap part come will be collected and waste material is disassembled, and by the copper scrap part and waste material classification processing after dismantling, 2) melting: it is described will treated that ingredient is delivered in shaft furnace is fused into copper liquid, the copper liquid enters tundish through downtand and prepares filtering.The method of the reduction shaft furnace copper bar twist irregularity, using new copper water filtration technology, copper water is allowed to filter from top to bottom, dross is made not flow blocking filtering mesh with copper water, reduce the intensity of filtering, extended filter block using effect, during the rolling process to high-concentration emulsified liquid, copper bar easily generated surface, roller surface is carried out to increase coarse processing, preceding road is amplified, reduces that single pass rolling reduction is excessive causes copper bar slippery surface, reduces shaft furnace bar twist irregularity problem to reach.
Description
Technical field
The present invention relates to equipment of industrial product technical field, specially a kind of method for reducing shaft furnace copper bar twist irregularity.
Background technique
16 tons of shaft furnace continuous casting and rolling production line per hour, using three-high mill, the mode of rack lubrication is emulsion
Lubrication, concentration of emulsion used is generally in 10-12%, shaft furnace copper bar manufacturing process, when slab quality fluctuates, the copper bar surface of rolling
Form crackle, that is, the copper bar twist irregularity being commonly called as.
Copper bar twist irregularity problem is generally existing in small tonnage shaft furnace continuous casting and rolling system, affects the usability of product
Can, the copper bar with twist irregularity can generate face crack in use, so as to cause cable surface burr, cable be caused to pierce
Surface insulation is worn, cable is even resulted in and scraps.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of method for reducing shaft furnace copper bar twist irregularity, subtract when having production
The advantages that twist irregularity occurs on few copper bar solves the problems, such as to prevent copper bar skidding drawing crack from forming twist irregularity.
(2) technical solution
To realize the above-mentioned purpose for preventing copper bar skidding drawing crack from forming twist irregularity, the invention provides the following technical scheme: one kind subtracts
The method of few shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: it is described will treated that ingredient is delivered in shaft furnace is fused into copper liquid, the copper liquid enters through downtand
Tundish prepares filtering, and compressed air enters downtand by the oxygen increasing tube being set on the downtand, on the oxygen increasing tube
It adds a water circulating heat-exchanging device and preheating heating is carried out before entering downtand to the compressed gas in oxygen increasing tube, it is described
Water circulating heat-exchanging device mainly includes temperature control system and heat exchange tube, and the heat exchange tube is placed on oxygenation tube outer surface,
Heat exchange tube is equipped with introducing port, export mouth and inner cavity.
3) copper liquid filters: copper liquid after melting by be set in the downtand cross filter block carry out removal filtration so that
Continuous casting billet structure uniformly, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, described
Cooling water enters the water circulating heat-exchanging device after heating, and cooling water is again introduced into the twin-belt continuous casting machine after cooling,
After cooling water heating, the compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from entering downtand
The occurrence of locally tying cold copper due to temperature is too low, and copper liquid temperature is caused to be greatly reduced afterwards, not only significantly reduces cost, together
When also improve the quality of finished product, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized it is cold
But effect carries out casting machine water to be segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, crystal grain refinement is added
Agent can be efficiently against casting crack, improvement casting of appearance of cast, the crystal grain refinement agent prescription, including following components: Al50~
60%, C1~5%, Ca5~10.5%, Mg29.5~44%.
5) Roller Machining: the slab, when before needing the preliminary milling by four corner angle scoring machines of slab, is formally milled in milling
It being rolled on milling train behind side, slab is obtained after copper liquid is cast, the slab is rolled on milling train after milling side,
It needs to spray slab with emulsion to improve product surface quality simultaneously when rolling, adds an emulsification during the rolling process
Fluid circulation, the emulsification fluid circulation include emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion rotation
Stream separator, heat exchanging pipe and settling system, emulsion absorb a large amount of heat in milling train, are entering the heat exchange
Temperature reduces after heat exchange after pipeline, eventually passes back to emulsion box, has rationally recycled heat, effectively reduces cost, will
The preceding road of milling train amplifies, and reduces that single pass rolling reduction is excessive to cause copper bar slippery surface；Shaft furnace bar twist irregularity is reduced to reach
Problem makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, to the semi-finished product copper bar after cleaning into
Row drying, dries up semi-finished product copper bar using compressed air during the drying, the compressed air is before drying
The heat exchanging pipe and emulsion flowed through in the emulsification fluid circulation carries out heat exchange, utilizes heat extra in emulsion
Compressed air is heated, compressed air dries up semi-finished product copper bar after being heated, more efficient.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al51~55%, C1.5~4%,
Ca6~9%, Mg32~41.5%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al52~58%, C2~3%, Ca6
~8%, Mg31~40%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al55~57%, C3~4%, Ca6
~10%, Mg29~36%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al52~58%, C2~4%, Ca6
~9%, Mg29~40%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al55~60%, C2~3%, Ca6
~8%, Mg29~37%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al54~55%, C3~4%, Ca7
~8%, Mg33~36%.
Preferably, the grain refiner includes the raw material of following parts by weight proportion: Al51~59%, C1~3%, Ca6
~8%, Mg30~42%.
(3) beneficial effect
Compared with prior art, the present invention provides it is a kind of reduce shaft furnace copper bar twist irregularity method, have it is following the utility model has the advantages that
1, the method for the reduction shaft furnace copper bar twist irregularity allows copper water to filter from top to bottom using new copper water filtration technology, makes to float
Slag does not flow blocking filtering mesh with copper water, reduces the intensity of filtering, extended filter block using effect, and existed to high-concentration emulsified liquid
In the operation of rolling, roller surface is carried out increasing coarse processing, preceding road is amplified by copper bar easily generated surface, reduces single pass pressure
Lower amount is excessive to cause copper bar slippery surface, reduces shaft furnace bar twist irregularity problem to reach.
2, the method for the reduction shaft furnace copper bar twist irregularity, is transformed casting machine system, increases casting machine Cool density, homogenizing
Cooling effect carries out casting machine water to be segmented into preheating section, Qiang Lengduan, temperature adjustment section, to highly concentrated to achieve the purpose that refine crystal grain
Spend emulsion during the rolling process, copper bar easily generated surface.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al52%, C2%, Ca6%, Mg40% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
Embodiment two:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al51%, C3%, Ca3.5%, Mg42.5% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
Embodiment three:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al51.5%, C4%, Ca8%, Mg36.5% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
Example IV:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al58%, C3%, Ca8%, Mg31% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
Embodiment five:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al59%, C4%, Ca9%, Mg28% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
Embodiment six:
1. a kind of method for reducing shaft furnace copper bar twist irregularity, comprises the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing.
2) melting: will treated that ingredient is delivered in shaft furnace is fused into copper liquid, copper liquid enters centre through downtand and assures
Standby filtering, compressed air enter downtand by the oxygen increasing tube being set on downtand, a water cycling hot are added on oxygen increasing tube
Switch carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and water circulating heat-exchanging device is main
Including temperature control system and heat exchange tube, heat exchange tube is placed on oxygenation tube outer surface, and heat exchange tube is equipped with introducing port, leads
Outlet and inner cavity.
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in downtand
Even tissue, ingredient stability.
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, cooling
Water enters water circulating heat-exchanging device after heating, and cooling water is again introduced into twin-belt continuous casting machine after cooling, after cooling water heating,
Compressed gas is heated into water circulating heat-exchanging device, prevents compressed gas from leading to copper because temperature is too low after entering downtand
Liquid temperature is greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, while also improving the matter of finished product
Amount, casting machine cooling system is added in casting process, by increase casting machine Cool density, be homogenized cooling effect, to casting machine water into
Row is segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner is added can be efficiently against casting
Crackle is made, casting of appearance of cast, crystal grain refinement agent prescription, including following components: Al56%, C1%, Ca6%, Mg37% are improved.
5) Roller Machining: slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, slab is rolled on milling train after milling side, is needed in rolling
Slab is sprayed with emulsion to improve product surface quality simultaneously, adds an emulsion cyclic system during the rolling process
System, emulsification fluid circulation includes emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion cyclone separator, heat
Exchange pipeline and settling system, emulsion absorb a large amount of heat in milling train, after entering heat exchanging pipe after heat exchange
Temperature reduces, and eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, roller surface is increased
The preceding road of milling train is amplified in the rough processing of overstriking, reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, to reach reduction
Shaft furnace bar twist irregularity problem, makes slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into twist irregularity.
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during drying, compressed air flows through emulsion before drying and follows
Heat exchanging pipe and emulsion in loop system carry out heat exchange, are heated using heat extra in emulsion to compressed air,
Compressed air dries up semi-finished product copper bar after being heated, more efficient.
In conclusion the method for the reduction shaft furnace copper bar twist irregularity, using new copper water filtration technology, allow copper water from upper past
Lower filtering makes dross not flow blocking filtering mesh with copper water, reduces the intensity of filtering, extended filter block using effect, to height
During the rolling process, roller surface is carried out increasing coarse processing, preceding road is amplified concentration emulsion by copper bar easily generated surface,
It reduces that single pass rolling reduction is excessive causes copper bar slippery surface, shaft furnace bar twist irregularity problem is reduced to reach, to casting machine system
It is transformed, increases casting machine Cool density, be homogenized cooling effect, to achieve the purpose that refine crystal grain, casting machine water is divided
Section is preheating section, Qiang Lengduan, temperature adjustment section, during the rolling process to high-concentration emulsified liquid, copper bar easily generated surface.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of method for reducing shaft furnace copper bar twist irregularity, which is characterized in that comprise the following production steps that
1) ingredient pre-process: will collect come copper scrap part and waste material disassemble, and by after dismantling copper scrap part and waste material classify
Processing,
2) melting: it is described will treated that ingredient is delivered in shaft furnace is fused into copper liquid, the copper liquid enters centre through downtand
Standby filtering is assured, compressed air enters downtand by the oxygen increasing tube being set on the downtand, adds on the oxygen increasing tube
One water circulating heat-exchanging device carries out preheating heating before entering downtand to the compressed gas in oxygen increasing tube, and the water follows
Ring heat-exchange device mainly includes temperature control system and heat exchange tube, and the heat exchange tube is placed on oxygenation tube outer surface, and heat is handed over
Casing replacing is equipped with introducing port, export mouth and inner cavity,
3) copper liquid filters: the copper liquid after melting carries out removal filtration so that slab by the filter block of crossing being set in the downtand
Even tissue, ingredient stability,
4) casting and crystal grain refinement: casting after copper liquid is cast on conticaster, cooled down with cooling water, the cooling
Water enters the water circulating heat-exchanging device after heating, and cooling water is again introduced into the twin-belt continuous casting machine after cooling, cooling
Water heating after, the compressed gas heat into water circulating heat-exchanging device, prevent compressed gas entrance downtand after because
Temperature is too low to cause copper liquid temperature to be greatly reduced and local the occurrence of tying cold copper, not only significantly reduces cost, simultaneously also
The quality for improving finished product adds casting machine cooling system in casting process, by increasing casting machine Cool density, is homogenized cooling effect
Fruit carries out casting machine water to be segmented into preheating section, Qiang Lengduan, temperature adjustment section, achievees the purpose that refine crystal grain, grain refiner energy is added
Efficiently against casting crack, improve casting of appearance of cast, the crystal grain refinement agent prescription, including following components: Al50~60%, C1
~5%, Ca5~10.5%, Mg29.5~44%,
5) Roller Machining: the slab is being milled when before needing the preliminary milling by four corner angle scoring machines of slab, behind formal milling side
It is rolled on milling train, slab is obtained after copper liquid is cast, the slab is rolled on milling train after milling side, rolled
When need simultaneously slab is sprayed with emulsion to improve product surface quality, add an emulsion during the rolling process and follow
Loop system, the emulsification fluid circulation include emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, lotion eddy flow point
From device, heat exchanging pipe and settling system, emulsion absorbs a large amount of heat in milling train, is entering the heat exchanging pipe
Temperature reduces after heat exchange afterwards, eventually passes back to emulsion box, has rationally recycled heat, effectively reduce cost, by roll
Surface carries out increasing coarse processing, and the preceding road of milling train is amplified, and reduces that single pass rolling reduction is excessive to cause copper bar slippery surface, from
And reach the shaft furnace bar twist irregularity problem that reduces, make slab under high-concentration emulsified liquid environment, avoids generating skidding drawing crack into triangle
Hole,
6) dry up, clean cooling: slab obtains semi-finished product copper bar after rolling, and is blown after cleaning the semi-finished product copper bar
It is dry, semi-finished product copper bar is dried up using compressed air during the drying, the compressed air is flowed through before drying
Heat exchanging pipe and emulsion in the emulsification fluid circulation carry out heat exchange, using heat extra in emulsion to pressure
The heating of contracting air, compressed air dries up semi-finished product copper bar after being heated, more efficient.
2. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al51~55%, C1.5~4%, Ca6~9%, Mg32~41.5%.
3. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al52~58%, C2~3%, Ca6~8%, Mg31~40%.
4. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al55~57%, C3~4%, Ca6~10%, Mg29~36%.
5. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al52~58%, C2~4%, Ca6~9%, Mg29~40%.
6. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al55~60%, C2~3%, Ca6~8%, Mg29~37%.
7. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al54~55%, C3~4%, Ca7~8%, Mg33~36%.
8. a kind of method for reducing shaft furnace copper bar twist irregularity according to claim 1, which is characterized in that the crystal grain refinement
Agent includes the raw material of following parts by weight proportion: Al51~59%, C1~3%, Ca6~8%, Mg30~42%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606462.0A CN110170629A (en) | 2019-07-05 | 2019-07-05 | A method of reducing shaft furnace copper bar twist irregularity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606462.0A CN110170629A (en) | 2019-07-05 | 2019-07-05 | A method of reducing shaft furnace copper bar twist irregularity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110170629A true CN110170629A (en) | 2019-08-27 |
Family
ID=67699831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910606462.0A Pending CN110170629A (en) | 2019-07-05 | 2019-07-05 | A method of reducing shaft furnace copper bar twist irregularity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110170629A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5252854A (en) * | 1975-10-24 | 1977-04-28 | Secim | Method and device to manufacture continuously bright copper wire rod by means of continuously casted material rolling |
| US4129170A (en) * | 1973-01-15 | 1978-12-12 | Southwire Company | Apparatus for producing a hot-formed product |
| CN101259484A (en) * | 2007-03-05 | 2008-09-10 | 浙江宏天铜业有限公司 | Scrap copper continuous casting and rolling low oxygen glitter copper lever production technology |
| CN101774013A (en) * | 2010-02-26 | 2010-07-14 | 华南理工大学 | Composite grain finer for Mg-Al alloy and preparation method thereof |
| CN104646420A (en) * | 2014-11-07 | 2015-05-27 | 新兴铸管（浙江）铜业有限公司 | Method for reducing cost of producing copper rod via continuous casting and continuous rolling |
| CN104651631A (en) * | 2014-11-07 | 2015-05-27 | 新兴铸管（浙江）铜业有限公司 | Technology for producing high-end low-oxygen copper rod with diameter of 8mm employing continuous casting and continuous rolling |
| CN105081699A (en) * | 2015-09-08 | 2015-11-25 | 安徽天大铜业有限公司 | Production method of low-oxygen copper rod with diameter of 8 mm |
| CN104646447B (en) * | 2014-11-07 | 2016-09-28 | 新兴铸管（浙江）铜业有限公司 | A kind of 8mm diameter low-oxygen copper pole different brackets production control method |
| CN106544527A (en) * | 2016-11-25 | 2017-03-29 | 安徽天大铜业有限公司 | A kind of impurity copper continuous casting and rolling low oxygen copper lever production technology |
-
2019
- 2019-07-05 CN CN201910606462.0A patent/CN110170629A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129170A (en) * | 1973-01-15 | 1978-12-12 | Southwire Company | Apparatus for producing a hot-formed product |
| JPS5252854A (en) * | 1975-10-24 | 1977-04-28 | Secim | Method and device to manufacture continuously bright copper wire rod by means of continuously casted material rolling |
| CN101259484A (en) * | 2007-03-05 | 2008-09-10 | 浙江宏天铜业有限公司 | Scrap copper continuous casting and rolling low oxygen glitter copper lever production technology |
| CN101774013A (en) * | 2010-02-26 | 2010-07-14 | 华南理工大学 | Composite grain finer for Mg-Al alloy and preparation method thereof |
| CN104646420A (en) * | 2014-11-07 | 2015-05-27 | 新兴铸管（浙江）铜业有限公司 | Method for reducing cost of producing copper rod via continuous casting and continuous rolling |
| CN104651631A (en) * | 2014-11-07 | 2015-05-27 | 新兴铸管（浙江）铜业有限公司 | Technology for producing high-end low-oxygen copper rod with diameter of 8mm employing continuous casting and continuous rolling |
| CN104646447B (en) * | 2014-11-07 | 2016-09-28 | 新兴铸管（浙江）铜业有限公司 | A kind of 8mm diameter low-oxygen copper pole different brackets production control method |
| CN105081699A (en) * | 2015-09-08 | 2015-11-25 | 安徽天大铜业有限公司 | Production method of low-oxygen copper rod with diameter of 8 mm |
| CN106544527A (en) * | 2016-11-25 | 2017-03-29 | 安徽天大铜业有限公司 | A kind of impurity copper continuous casting and rolling low oxygen copper lever production technology |
Non-Patent Citations (1)
| Title |
|---|
| 居敏刚等: "《铜及铜合金棒、线材生产技术》", 31 October 2009, 冶金工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104646420B (en) | A kind of continuous casting and rolling produces the method for copper bar | |
| CN106180192B (en) | A kind of wire and rod continuous casting billet high speed direct sending directly rolls system and method | |
| CN102380596B (en) | Method for adjusting secondary cooling water amount and roll gap value of double-flow slab casting machine | |
| CN107287368A (en) | A kind of converter slag processing unit and method | |
| CN109234495B (en) | Continuous casting production process of SM4Gr2MnNi die steel plate with low compression ratio and high flaw detection requirement | |
| CN108220511A (en) | Filter method Slag treatment method in a kind of In The Sub-mergedfurnace of The Ferroalloys bottom | |
| CN205254679U (en) | Five -axle linkage is jet cooling device for lathe | |
| CN205988959U (en) | A kind of wire and rod continuous casting billet high speed direct sending directly rolls system | |
| WO2014117519A1 (en) | Compact universal vertical steel rail rolling method | |
| CN212704304U (en) | Casting mold cooling device | |
| CN109852813A (en) | Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company | |
| CN211112091U (en) | Medium-high frequency quenching machine for heat treatment of metal components | |
| CN108543922A (en) | Fan-shaped section secondary cooling system is used under a kind of solidification end weight | |
| CN110170629A (en) | A method of reducing shaft furnace copper bar twist irregularity | |
| CN207592446U (en) | Novel aluminum alloy encryption deionized water cold charge is standby | |
| CN106077539A (en) | A kind of preparation technology of aluminum alloy strip continuous casting and rolling | |
| CN106583466A (en) | Rolled steel hot delivery and hot charging technology | |
| CN201371387Y (en) | Machine tool cutting liquid filtering and cooling system | |
| CN103029010B (en) | A kind of compact production technology of metal plate and belt is arranged | |
| CN210132049U (en) | Automatic adjust metal 3D and print gaseous purifier | |
| CN112916621A (en) | Energy-saving control method for hot rolling turbid circulating water process | |
| CN104998915B (en) | The online surface scale collection device of Copper and brass strip hot rolling | |
| CN107598111A (en) | A kind of continuous casting cooling Water Sproading and afterheat utilizing system | |
| CN214813586U (en) | High-speed wire rod production line | |
| CN213747487U (en) | Low alloy steel high-strength steel hot rolling processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |
|
| RJ01 | Rejection of invention patent application after publication |