CN104646420A - Method for reducing cost of producing copper rod via continuous casting and continuous rolling - Google Patents
Method for reducing cost of producing copper rod via continuous casting and continuous rolling Download PDFInfo
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- CN104646420A CN104646420A CN201410624201.9A CN201410624201A CN104646420A CN 104646420 A CN104646420 A CN 104646420A CN 201410624201 A CN201410624201 A CN 201410624201A CN 104646420 A CN104646420 A CN 104646420A
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- sedimentation basin
- emulsion
- copper
- copper bar
- rolling
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000010949 copper Substances 0.000 title claims abstract description 87
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 87
- 238000005096 rolling process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009749 continuous casting Methods 0.000 title claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 37
- 239000000047 product Substances 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 238000007499 fusion processing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000012858 packaging process Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000004018 waxing Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0284—Cleaning devices removing liquids removing lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a method for reducing cost of producing a copper rod via continuous casting and continuous rolling. The method is improved on the basis of the prior art, and a water circulating heat exchange device and an emulsion circulating system are additionally arranged; energy sources are reasonably utilized, and energy conservation and environment friendliness are realized; the production cost is effectively reduced and the quality of a product is improved to a certain extent. The method relates to the field of machining of metal copper.
Description
Technical field
The present invention relates to the manufacture field of metallic copper, particularly relate to a kind of method that continuous casting and rolling production of copper bar reduces costs.
Background technology
Along with the continuous maturation in market, the quality requirement of current client to copper bar product increases gradually, and due to the increase of Tong Gan manufacturer quantity, the competition in market is also more and more fierce, and the rising along with various cost makes manufacturer's profit more and more thinner.Therefore, while guarantee copper bar product quality, rationally reducing the production cost of copper bar product, is an effective way that can effectively solve the problem.
Application number 201110146789.8, the Chinese patent in December 5 2012 Shen Qing Publication day discloses the process that a kind of waste and old recycled copper produces copper pipe, its technological process is: waste and old recycled copper or waste and old recycled copper and a certain proportion of cathode copper are through high temperature melting furnace melting refinement, holding furnace insulation is entered through undercurrent passage, again after crystallizer crystallization cooling, by hauling machine level or upwards traction cast out red copper pipe continuously, follow-up pipe is advanced to three-roller planetary rolling mill continuous rolling and goes out semifinished tube behind milling face, is stretched to production tube needed for last basis.This invention achieves to use waste and old recycled copper completely or in cathode copper fusion process, add waste and old recycled copper in a large number produces copper pipe, to copper scrap recycling, reduces cost.The weak point of this invention is: although significantly reduce cost to waste and old copper recycling, because waste and old copper purity is not high, have impact on the quality of product to a certain extent, be difficult to meet some high-end markets demand.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method that continuous casting and rolling production of copper bar reduces costs, the inventive method is transformed on prior art basis, energy-conserving and environment-protective, effectively reduce production cost, and improve the quality of product to a certain extent.
Concrete technical scheme of the present invention is: a kind of method that continuous casting and rolling production of copper bar reduces costs, and prior art basis is transformed, and transforms operation following in prior art:
A. melting: electrolytic copper material becomes copper liquid after melting, described copper liquid enters tundish through downtand and prepares casting, compressed air enters downtand by the oxygen increasing tube be located on described downtand, described oxygen increasing tube is set up a water circulation heat-exchange device before entering downtand, intensification is preheated to the Compressed Gas in oxygen increasing tube, described water circulation heat-exchange device mainly comprises temperature control system and heat exchange tube, described heat exchange tube is placed on oxygen increasing tube outer surface, and heat exchange tube is provided with introducing port, export mouth and inner chamber.
B. cast: copper liquid is cast in after on conticaster and casts, cool with cooling water, described cooling water enters the inner chamber of described water circulation heat-exchange device after intensification from described introducing port by conduit, flow out from described export mouth after carrying out heat exchange cooling with described compressed air, again enter described conticaster, so circulate.The setting of water circulation heat-exchange device, make use of the heat after cooling water intensification, Compressed Gas is heated, prevent that Compressed Gas Yin Wendu after entering downtand is too low causes copper liquid temperature significantly to reduce and the generation of cold copper situation is tied in local, not only significantly reduce cost, also improve the quality of finished product simultaneously.
C. rolling: copper liquid obtains strand after casting, described strand is rolled behind milling limit on milling train, need when rolling to spray to improve product surface quality to strand with emulsion simultaneously, an emulsion circulatory system is set up in the operation of rolling, the described emulsion circulatory system comprises emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, emulsion flows through high pressure dephosphorization pump from described emulsion box successively by conduit, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, finally get back to emulsion box.The setting of the described emulsion circulatory system, emulsion in the operation of rolling can be recycled, reduce cost, copper powders a large amount of in emulsion is separated by emulsion cyclone separator, prevent copper powder in the operation of rolling from being rolled to casting billet surface, significantly can reduce the copper powder content of product surface.Emulsion absorbs a large amount of heats in milling train, and after entering described heat exchanging pipe, after heat exchange, temperature reduces, and finally gets back to emulsion box, has rationally recycled heat, effectively reduced cost.
D. dry up: strand obtains semi-finished product copper bar after rolling, described semi-finished product copper bar is dried up after cleaning, finally by waxing, be packaged to be finished product, use compressed air to dry up semi-finished product copper bar described drying up in process, described compressed air flows through heat exchanging pipe in the described emulsion circulatory system before drying up and emulsion carries out heat exchange.Utilize heat unnecessary in emulsion to heat compressed air, compressed air dries up semi-finished product copper bar after being heated, and efficiency is higher, and emulsion also need not arrange cooling device more specially to it cools, and has saved the energy.
As preferably, settling system in the described emulsion circulatory system comprises the first sedimentation basin and the second sedimentation basin, first sedimentation basin and the second sedimentation basin are provided with inlet and liquid outlet separately, described inlet with liquid outlet respectively with input duct, fluid pipeline connects, the other end of described input duct is connected with described heat exchanging pipe, the other end of described fluid pipeline is connected with described emulsion box, input duct and fluid pipeline make the first sedimentation basin be formed mutually in parallel with the second sedimentation basin, first sedimentation basin and the second sedimentation basin inlet separately, liquid outlet place is equipped with valve, valve is provided with between heat exchanging pipe and input duct.The setting of settling system, can remove the impurity in emulsion further, guarantees that emulsion keeps clean before next circulation; The design that sedimentation basin is parallel, compares traditional tandem, and each sedimentation basin can be made to operate separately, if a certain sedimentation basin breaks down or needs to clear up, can close it separately and not affect other sedimentation basin, improve efficiency, indirectly reduce production cost.
As preferably, the inside of described first sedimentation basin and the second sedimentation basin is equipped with at least one dividing plate erect, first sedimentation basin and the second sedimentation basin are separately by mud chamber that described baffle for separating becomes several independent, the top of each dividing plate is equipped with the spout hole being communicated with dividing plate both sides mud chamber, described inlet is arranged in side wall upper part or the top of the mud chamber of the first sedimentation basin and the most avris of the second sedimentation basin, described liquid outlet is arranged in side wall upper part or the top of the first sedimentation basin and the second sedimentation basin and distance mud chamber farthest of liquid outlet place mud chamber, the bottom of each mud chamber of the first sedimentation basin and the second sedimentation basin is equipped with sewage draining exit.The design of sedimentation basin internal partition, is divided into a sedimentation basin mud chamber of multiple series connection, further increases the clean-up effect of each sedimentation basin, reduce the content of impurity in emulsion, indirectly improve the surface quality of product.When in sedimentation basin, impurities accumulation is more, the design of sewage draining exit can clear up impurity easily.
As preferably, the quantity of sedimentation basin in parallel mutually in described settling system is more than 2.The quantity of sedimentation basin can be set according to the actual requirements when the flow of emulsion is larger more.
As preferably, in described fusion process, described copper liquid enters holding furnace from shaft furnace through upper reaches concentrated flow before casting, described tundish is flowed into again through described downtand, the semi-circular stream pipe of carborundum is provided with between chute and holding furnace on described, have metal supporting plate in described carborundum semi-circular stream pipe lower support, the curved and nock of the cross section of described metal supporting plate upward.Do not have supporting construction below the semi-circular stream pipe of prior art carborundum, general to use about a week will Yin Gaowen and brittle failure, because setting that temperature is high extends the service life of the semi-circular stream pipe of carborundum, extends to about one month by a week.The time of the semi-circular stream pipe of usual replacing carborundum is about 6 hours, if the semi-circular stream pipe of carborundum ruptures in continuous seepage, production line interrupts immediately.Therefore the setting of metal supporting plate ensure that the continuity of production, reduces cost, improves benefit.
As preferably, in described matting, cleaning line is divided into cleaning section and cooling section, described cleaning section uses cleaning fluid to clean, and described cooling section uses clear water to cool.Cleaning section object is to reduce line bar surface oxide layer thickness, and under the prerequisite meeting product surface oxidated layer thickness, cooling section then cools with running water.Use cleaning fluid to carry out cleaning comparing with cooling with unified in prior art, decrease the use amount of cleaning fluid, reduce cost.
As preferably, for to the cable client of product surface quality without particular/special requirement, in described packaging process, nude enamelled packaging method is adopted to copper bar, steel band, wood composite pallet and packing film are cast out, described nude enamelled packaging method is that the copper bar heap reeled to every a pile is selected 4 short copper bars to tie up to prevent the Bales Off when transporting, described 4 short copper bars are evenly distributed in described copper bar heap surrounding, and 4 short copper bars are tied up upper back and pricked the suspension ring conveniently assemble and disassemble having and can sling for overhead traveling crane.In the operation of prior art, use steel band is packed, coating product has packing film, wooden rack is lined with bottom product, the cost price of steel band is 8000 yuan/ton, and steel band can scratch copper bar surface, affects product surface quality, every part copper bar (4.3 tons) need use a wooden rack, and each wooden rack cost is 150 yuan.Adopt nude enamelled packaging method, do not use steel band, wood composite pallet and packing film, significantly reduce cost, shorten the packaging time, and due to copper bar quality softness, tie up with short copper bar and not easily make copper bar product scratch.
The invention has the beneficial effects as follows: the inventive method is transformed prior art, Appropriate application resource, reduces production cost significantly, improves the quality of copper bar product to a certain extent simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of water circulation heat-exchange device in the present invention;
Fig. 2 is the schematic diagram of the emulsion circulatory system in the present invention;
Fig. 3 is the schematic diagram of the settling system of the emulsion circulatory system in the present invention;
Fig. 4 is the structural representation of metal supporting plate in the present invention;
Fig. 5 is the schematic diagram of the nude enamelled packing of copper bar in the present invention.
Reference numeral is: input duct 1, first sedimentation basin 2, second sedimentation basin 3, fluid pipeline 4, inlet 5, liquid outlet 6, sewage draining exit 7, dividing plate 8, spout hole 9, water circulation heat-exchange device 100, temperature control system 101, heat exchange tube 102, introducing port 103, export mouth 104, inner chamber 105, metal supporting plate 200, carborundum semi-circular stream pipe 201, copper bar heap 300, short copper bar 301.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The method that continuous casting and rolling production of copper bar reduces costs, prior art basis is transformed, and transforms operation following in prior art:
A. melting: electrolytic copper material becomes copper liquid after melting, described copper liquid enters holding furnace from shaft furnace through upper reaches concentrated flow, flow into tundish through downtand again and prepare casting, the semi-circular stream pipe of carborundum is provided with between chute and holding furnace on described, as shown in Figure 4, have metal supporting plate 200 in described carborundum semi-circular stream pipe 201 lower support, the curved and nock of the cross section of described metal supporting plate upward.In fusion process, compressed air enters downtand by the oxygen increasing tube be located on described downtand, as shown in Figure 1, the Compressed Gas described oxygen increasing tube set up in a water circulation heat-exchange device 100 pairs of oxygen increasing tubes preheats intensification before entering downtand, described water circulation heat-exchange device mainly comprises temperature control system 101 and heat exchange tube 102, described heat exchange tube is placed on oxygen increasing tube outer surface, and heat exchange tube is provided with introducing port 103, export mouth 104 and inner chamber 105.
B. cast: copper liquid is cast in after on conticaster and casts, cool with cooling water, described cooling water enters the inner chamber of described water circulation heat-exchange device after intensification from described introducing port by conduit, flow out from described export mouth after carrying out heat exchange cooling with described compressed air, again enter described conticaster, so circulate.
C. rolling: copper liquid obtains strand after casting, described strand is rolled behind milling limit on milling train, need when rolling to spray to improve product surface quality to strand with emulsion simultaneously, an emulsion circulatory system is set up in the operation of rolling, as shown in Figure 2, the described emulsion circulatory system comprises emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, emulsion flows through high pressure dephosphorization pump from described emulsion box successively by conduit, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, finally get back to emulsion box.Wherein emulsified liquid collection device is for collecting the emulsion in milling train, and copper powders a large amount of in emulsion is separated by emulsion cyclone separator, prevents copper powder in the operation of rolling from being rolled to casting billet surface, can reduce the copper powder content of product surface.
Described settling system is used for precipitating impurity in emulsion further, as shown in Figure 3, it comprises the first sedimentation basin 2 and the second sedimentation basin 3, first sedimentation basin and the second sedimentation basin are provided with inlet 5 and liquid outlet 6 separately, described inlet with liquid outlet respectively with input duct 1, fluid pipeline 4 connects, the other end of described input duct is connected with described heat exchanging pipe, the other end of described fluid pipeline is connected with described emulsion box, input duct and fluid pipeline make the first sedimentation basin be formed mutually in parallel with the second sedimentation basin, first sedimentation basin and the second sedimentation basin inlet separately, liquid outlet place is equipped with valve, valve is provided with between heat exchanging pipe and input duct.In addition, the inside of the first sedimentation basin and the second sedimentation basin is equipped with a dividing plate erect 8, first sedimentation basin and the second sedimentation basin are become two independent mud chambers by described baffle for separating separately, the top of each dividing plate is equipped with the spout hole 9 being communicated with dividing plate both sides mud chamber, described inlet is arranged in the side wall upper part of a mud chamber of the first sedimentation basin and the second sedimentation basin, described liquid outlet is positioned at the top of the mud chamber adjacent with inlet place mud chamber, and the bottom of each mud chamber of the first sedimentation basin and the second sedimentation basin is equipped with sewage draining exit 7.
D. dry up: strand obtains semi-finished product copper bar after rolling, to described semi-finished product copper bar
Clean, in described matting, cleaning line is divided into cleaning section and cooling section, described cleaning section uses cleaning fluid to clean, and described cooling section uses clear water to cool.Cleaning section object is to reduce line bar surface oxide layer thickness, and under the prerequisite meeting product surface oxidated layer thickness, cooling section then cools with running water.Use compressed air to dry up product after cleaning, described compressed air flows through heat exchanging pipe in the described emulsion circulatory system before drying up and emulsion carries out heat exchange intensification.Wax after drying up, last packaging process is entered after waxing, for to the cable client of product surface quality without particular/special requirement, in described packaging process, nude enamelled packaging method is adopted to copper bar: as shown in Figure 5, the copper bar heap 300 reeled to every a pile is selected 4 short copper bars 301 to tie up and is prevented the Bales Off when transporting, described 4 short copper bars are evenly distributed in described copper bar heap surrounding, and 4 short copper bars are tied up upper back and pricked the suspension ring conveniently assemble and disassemble having and can sling for overhead traveling crane.Packaging postscript obtains finished product.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong to the protection domain of technical solution of the present invention.
Claims (7)
1. the method that reduces costs of continuous casting and rolling production of copper bar, prior art basis is transformed, it is characterized in that transforming operation following in prior art:
A. melting: electrolytic copper material becomes copper liquid after melting, described copper liquid enters tundish through downtand and prepares casting, compressed air enters downtand by the oxygen increasing tube be located on described downtand, described oxygen increasing tube is set up a water circulation heat-exchange device (100) before entering downtand, intensification is preheated to the Compressed Gas in oxygen increasing tube, described water circulation heat-exchange device mainly comprises temperature control system (101) and heat exchange tube (102), described heat exchange tube is placed on oxygen increasing tube outer surface, heat exchange tube is provided with introducing port (103), export mouth (104) and inner chamber (105),
B. cast: copper liquid is cast in after on conticaster and casts, cool with cooling water, described cooling water enters the inner chamber of described water circulation heat-exchange device after intensification from described introducing port by conduit, flow out from described export mouth after carrying out heat exchange cooling with described compressed air, again enter described conticaster, so circulate;
C. rolling: copper liquid obtains strand after casting, described strand is rolled behind milling limit on milling train, need when rolling to spray to improve product surface quality to strand with emulsion simultaneously, an emulsion circulatory system is set up in the operation of rolling, the described emulsion circulatory system comprises emulsion box, high pressure dephosphorization pump, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, emulsion flows through high pressure dephosphorization pump from described emulsion box successively by conduit, milling train, emulsified liquid collection device, emulsion cyclone separator, heat exchanging pipe and settling system, finally get back to emulsion box,
D. dry up: strand obtains semi-finished product copper bar after rolling, described semi-finished product copper bar is dried up after cleaning, finally by waxing, be packaged to be finished product, use compressed air to dry up semi-finished product copper bar described drying up in process, described compressed air flows through heat exchanging pipe in the described emulsion circulatory system before drying up and emulsion carries out heat exchange.
2. the method that reduces costs of continuous casting and rolling production of copper bar as claimed in claim 1, it is characterized in that, settling system in the described emulsion circulatory system comprises the first sedimentation basin (2) and the second sedimentation basin (3), first sedimentation basin and the second sedimentation basin are provided with inlet (5) and liquid outlet (6) separately, described inlet with liquid outlet respectively with input duct (1), fluid pipeline (4) connects, the other end of described input duct is connected with described heat exchanging pipe, the other end of described fluid pipeline is connected with described emulsion box, input duct and fluid pipeline make the first sedimentation basin be formed mutually in parallel with the second sedimentation basin, first sedimentation basin and the second sedimentation basin inlet separately, liquid outlet place is equipped with valve, valve is provided with between heat exchanging pipe and input duct.
3. the method that reduces costs of continuous casting and rolling production of copper bar as claimed in claim 2, it is characterized in that, the inside of described first sedimentation basin and the second sedimentation basin is equipped with at least one dividing plate erect (8), first sedimentation basin and the second sedimentation basin are separately by mud chamber that described baffle for separating becomes several independent, the top of each dividing plate is equipped with the spout hole (9) being communicated with dividing plate both sides mud chamber, described inlet is arranged in side wall upper part or the top of the mud chamber of the first sedimentation basin and the most avris of the second sedimentation basin, described liquid outlet is arranged in side wall upper part or the top of the first sedimentation basin and the second sedimentation basin and distance mud chamber farthest of liquid outlet place mud chamber, the bottom of each mud chamber of the first sedimentation basin and the second sedimentation basin is equipped with sewage draining exit (7).
4. the as claimed in claim 2 or claim 3 method that reduces costs of continuous casting and rolling production of copper bar, it is characterized in that, the quantity of sedimentation basin in parallel mutually in described settling system is more than 2.
5. the method that the continuous casting and rolling production of copper bar as described in one of claim 1-3 reduces costs, it is characterized in that, in described fusion process, described copper liquid enters holding furnace from shaft furnace through upper reaches concentrated flow before casting, described tundish is flowed into again through described downtand, be provided with semi-circular stream pipe (201) of carborundum on described between chute and holding furnace, have metal supporting plate (200) in described carborundum semi-circular stream pipe lower support, the curved and nock of the cross section of described metal supporting plate upward.
6. the method that the continuous casting and rolling production of copper bar as described in one of claim 1-3 reduces costs, it is characterized in that, in described matting, cleaning line is divided into cleaning section and cooling section, described cleaning section uses cleaning fluid to clean, and described cooling section uses clear water to cool.
7. the method that the continuous casting and rolling production of copper bar as described in one of claim 1-3 reduces costs, it is characterized in that, in described packaging process, nude enamelled packaging method is adopted to copper bar, steel band, wood composite pallet and packing film are cast out, described nude enamelled packaging method is select 4 short copper bars (301) to tie up to copper bar heap (300) that every a pile reels, described 4 short copper bars are evenly distributed in described copper bar heap surrounding, and 4 short copper bars are tied up upper back and pricked the suspension ring having and can sling for overhead traveling crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624201.9A CN104646420B (en) | 2014-11-07 | 2014-11-07 | A kind of continuous casting and rolling produces the method for copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (9)
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| 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 |
| CN105945069A (en) * | 2016-07-08 | 2016-09-21 | 宝钢股份黄石涂镀板有限公司 | Cold rolling unit emulsion system moisturized through steam condensate |
| CN107363095A (en) * | 2017-07-31 | 2017-11-21 | 尚成荣 | It is a kind of to utilize the method for regenerating Copper fabrication conductive copper bus-bar |
| CN108421836A (en) * | 2018-04-09 | 2018-08-21 | 新疆八钢铁股份有限公司 | shaped steel descaling device |
| CN108624763A (en) * | 2018-05-07 | 2018-10-09 | 安徽润藤电缆材料科技有限公司 | A kind of low-oxygen copper-rod continuous-casting continuous-rolling production technology |
| CN110170629A (en) * | 2019-07-05 | 2019-08-27 | 安徽楚江高新电材有限公司 | A method of reducing shaft furnace copper bar twist irregularity |
| CN111136107A (en) * | 2019-12-20 | 2020-05-12 | 杭州富通电线电缆有限公司 | Copper rod production process |
| CN113560513A (en) * | 2021-08-11 | 2021-10-29 | 福州丹文科技有限公司 | Automatic control system for copper rod continuous casting and rolling |
| CN113695408A (en) * | 2021-08-17 | 2021-11-26 | 全威（铜陵）铜业科技有限公司 | Phosphorus removal device for copper rod rolling mill |
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| CN101811149A (en) * | 2010-04-14 | 2010-08-25 | 新兴铸管股份有限公司 | Manufacturing method of high alloy seamless steel tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105945069B (en) * | 2016-07-08 | 2018-01-23 | 宝钢股份黄石涂镀板有限公司 | A kind of cold mill complex emulsion system that moisturizing is carried out using steam condensate (SC) |
| CN105945069A (en) * | 2016-07-08 | 2016-09-21 | 宝钢股份黄石涂镀板有限公司 | Cold rolling unit emulsion system moisturized through steam condensate |
| CN107363095B (en) * | 2017-07-31 | 2018-12-18 | 尚成荣 | A method of utilizing regeneration Copper fabrication conductive copper bus-bar |
| CN107363095A (en) * | 2017-07-31 | 2017-11-21 | 尚成荣 | It is a kind of to utilize the method for regenerating Copper fabrication conductive copper bus-bar |
| CN108421836A (en) * | 2018-04-09 | 2018-08-21 | 新疆八钢铁股份有限公司 | shaped steel descaling device |
| CN108624763A (en) * | 2018-05-07 | 2018-10-09 | 安徽润藤电缆材料科技有限公司 | A kind of low-oxygen copper-rod continuous-casting continuous-rolling production technology |
| CN110170629A (en) * | 2019-07-05 | 2019-08-27 | 安徽楚江高新电材有限公司 | A method of reducing shaft furnace copper bar twist irregularity |
| CN111136107A (en) * | 2019-12-20 | 2020-05-12 | 杭州富通电线电缆有限公司 | Copper rod production process |
| CN111136107B (en) * | 2019-12-20 | 2021-11-19 | 杭州富通电线电缆有限公司 | Copper rod production process |
| CN113560513A (en) * | 2021-08-11 | 2021-10-29 | 福州丹文科技有限公司 | Automatic control system for copper rod continuous casting and rolling |
| CN113560513B (en) * | 2021-08-11 | 2022-10-11 | 福州丹文科技有限公司 | Automatic control system for copper rod continuous casting and rolling |
| CN113695408A (en) * | 2021-08-17 | 2021-11-26 | 全威（铜陵）铜业科技有限公司 | Phosphorus removal device for copper rod rolling mill |
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