CN209753960U - Copper pole production system - Google Patents
Copper pole production system Download PDFInfo
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- CN209753960U CN209753960U CN201822164126.9U CN201822164126U CN209753960U CN 209753960 U CN209753960 U CN 209753960U CN 201822164126 U CN201822164126 U CN 201822164126U CN 209753960 U CN209753960 U CN 209753960U
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Abstract
A copper rod production system comprising: smelt the device, smelt the device including preheating furnace, melting furnace, chute, the heat preservation stove that communicates in proper order, wherein: the preheating furnace is used for preheating the copper material; the melting furnace is used for deoxidizing the preheated copper material, melting the preheated copper material into copper liquid, and conveying the copper liquid to the holding furnace through the chute for heat preservation; the heat preservation furnace is used for preserving heat of the copper liquid and conveying the copper liquid to the dip-coating chamber and the first hollow crystallizer; the first hollow crystallizer is used for crystallizing the copper liquid to form a first primary casting rod; a dip coating chamber, which is used for coating the copper liquid on the surface of the first primary cast rod to generate a middle-grade cast rod; the hot rolling device is used for carrying out hot rolling treatment on the medium-grade cast rod; and the first coiling device is used for coiling the hot-rolled middle-stage cast rod. The utility model provides a dip-coating method production efficiency low, the not enough problem of productivity. Different production modes can be selected according to different requirements on the quality of the copper rod, and the product types are enriched. The elongation of the copper rod is also obviously improved. The surface of the copper rod product is free from bubbles after being processed into a flat wire and annealed.
Description
Technical Field
The utility model relates to a copper pole production technical field, specifically speaking relates to a copper pole production system.
background
the production method of the copper rod by the dip coating method is that the mother rod with the surface oxide skin removed passes through a container filled with copper liquid from bottom to top at a constant speed. Because of the temperature difference between the core rod and the copper liquid, the mother rod absorbs a large amount of heat in the process of passing through the copper liquid, the copper liquid can be uniformly attached to the surface of the core rod to form a new cast rod, and the new cast rod is processed into a required finished product size through hot rolling. The process can be adjusted on line from the copper plate to the smelting process, the dip-coating process and finally to the rolling mill process, the required product specification is rolled, the whole line adopts reducing atmosphere and vacuum sealing protection, the oxygen content of the final product is controlled to be 1-5 ppm, and the subsequent machinability, conductivity and use stability of the product are excellent.
At present, in the production method of the copper rod by the dip coating method, a part of the produced semi-finished copper rod is directly used as a mother rod and circularly returned to a dip coating container for dip coating, and the other part of the semi-finished copper rod is subjected to a wire drawing process to form a finished product. However, since the dip coating method is complicated in production process, the production of the copper rod takes a long time, which undoubtedly increases the time of the whole copper rod production process, and the production efficiency is low. In addition, the copper rod is easy to wrap air bubbles in the copper rod due to repeated dip-coating, so that the quality of the copper rod product is unqualified.
SUMMERY OF THE UTILITY MODEL
For solving the above problem, the utility model provides a copper pole production system, copper pole production system includes: smelt the device, smelt the device including the preheater, melting furnace, chute, the heat preservation stove that communicate in proper order, wherein: the preheating furnace is used for preheating the copper material; the melting furnace is used for deoxidizing the preheated copper material, melting the preheated copper material into copper liquid, and conveying the copper liquid to the holding furnace through the chute for heat preservation; the heat preservation furnace is used for preserving heat of the copper liquid and conveying the copper liquid to the dip-coating chamber and the first hollow crystallizer; the first hollow crystallizer is used for crystallizing the copper liquid to form a first primary casting rod; a dip coating chamber, which is used for coating the copper liquid on the surface of the first primary cast rod to generate a middle-grade cast rod; the hot rolling device is used for carrying out hot rolling treatment on the intermediate-grade cast rod; and the first coiling device is used for coiling the hot-rolled middle-stage cast rod.
preferably, the device further comprises a stretching device, a peeling device and a conveying device which are sequentially arranged, wherein the stretching device is used for extruding and shaping the first primary casting rod; the peeling device is used for peeling the extruded and shaped first primary cast rod; the conveying device is used for conveying copper scraps generated by the peeling device to the smelting device.
preferably, the device further comprises a blow-drying device for blowing off the cooling liquid sprayed on the copper rods in the hot rolling process.
Preferably, the device further comprises a wire drawing device, wherein the wire drawing device is used for performing wire drawing treatment on the medium-grade cast rod wound into a ring.
Preferably, the copper rod production system further comprises a second hollow crystallizer, a cold rolling device and a second ring forming device, wherein the second hollow crystallizer is used for enabling the copper liquid conveyed into the second hollow crystallizer by the holding furnace to generate second primary cast rods; the cold rolling device is used for performing cold rolling treatment on the second primary casting rod; and the second coiling device is used for coiling the second primary cast rod subjected to the cold rolling treatment into a coil.
The copper rod production system of this application has following beneficial effect:
(1) Solves the problems of loose crystallization and low density of the copper rod product in the upward drawing method, and also solves the problems of low production efficiency and insufficient productivity of the dip coating method.
(2) Compared with the prior art that the copper rod with the diameter of 16mm in the finished copper rod product produced by the dip-coating method is circularly returned to the dip-coating container, the method has the advantages that the production efficiency is improved, the productivity is improved, and the cost is reduced.
(3) can be different according to the quality demand to the copper pole, select different production methods, both can produce high-quality copper pole and low-quality copper pole simultaneously, also can only produce high-quality copper pole or low-quality copper pole, the product type obtains abundantly.
(4) the copper rod product produced by the upward drawing method has high oxygen content, loose crystals, low density and low elongation, but the upward drawing rod used as a mother rod for the dip coating equipment has high crystal density and obviously improved elongation. Compared with a dip coating method, the elongation of the copper rod is improved from 35-40% to 37-40%.
(5) because the copper rod produced by two processes of the up-drawing method and the dip-coating method is used in the markets of domestic wind power, high-speed rail and the like for the flat wire (processed by the copper rod), the inspection data of hardness, bending capability and the like after the flat wire is processed are poor due to the poor density and high oxygen content of the copper rod produced by the up-drawing method, and after the flat wire is processed by the dip-coating method, all technical indexes of the hardness, the oxygen content and the bending capability are superior to those of the product produced by the up-drawing method, but the surface foaming phenomenon of the product after annealing is more. The reason for this is that dip coating process needs to produce female pole repeatedly, because dip-coating many times, the core bar produces slight space with the copper water dip-coating layer easily, just appears the bubble easily after the flat line customer is processed into the flat line annealing, through the utility model discloses a copper pole production system adopts copper liquid crystallization formation female pole in the crystallizer, and direct dip-coating uses the production finished product (need not female pole of circulation production, reproduction finished product), and the product does not have the bubbling phenomenon for the flat line annealing back through processing.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings.
FIG. 1 is a process flow chart showing a method for producing a copper bar according to a first embodiment of the present invention;
FIG. 2 is a process flow chart showing a method for producing a copper bar according to a first embodiment of the present invention;
FIG. 3 is a process flow chart showing a method for producing a copper bar according to a second embodiment of the present invention;
FIG. 4 is an apparatus connection diagram showing a copper rod producing system of the present invention used in the copper rod producing method of the first embodiment;
fig. 5 is an equipment connection diagram showing a copper rod production system used in the copper rod production method according to the second embodiment of the present invention.
Detailed Description
Embodiments of the copper rod production method and system according to the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
The copper rod production method includes a first embodiment and a second embodiment.
First embodiment
As shown in fig. 1, the method comprises the following steps:
In step S10, as shown in fig. 2 and 4, the copper material 10 (electrolytic copper) is added to the melting apparatus and melted to obtain a molten copper. The smelting device comprises a preheating furnace 20, a melting furnace 30, a chute 110 and a first heat preservation furnace 40 which are connected in sequence. Combustible gas is introduced into the preheating furnace 20, the copper material 10 is conveyed into the preheating furnace 20 to be combusted and preheated, and attachments on the surface of the copper material 10 are burnt out. Specifically, the incomplete combustion reaction (partial cracking) is performed in the preheating furnace 20, and the incomplete combustion reaction is an exothermic reaction, so that the preheating furnace 20 does not need external heat energy, and the reaction can be continuously performed by the heat generated by combustion. The preheating furnace 20 is connected with the melting furnace 30 in a sealing mode to prevent heat loss, the preheated copper material is conveyed to the melting furnace 30 in a sealing mode to be melted into copper liquid 100, and the copper liquid 100 flows into the first heat preservation furnace 40 through the chute 110. Further, the melting furnace 30 and the first holding furnace 40 are filled with a reducing atmosphere. The reducing protective gas comprises inert gas and/or nitrogen. Further, an oxygen scavenger is charged into the melting furnace 30 and the first heat retaining furnace 40.
And respectively guiding the copper liquid 10 to the first hollow crystallizer 80 and the dip-coating chamber 50, wherein the copper liquid 100 enters the second holding furnace 90 and enters the first hollow crystallizer 80 from the second holding furnace 90. However, it is not excluded herein that the first holding furnace 40 and the second holding furnace 90 are combined into one. The first hollow crystallizer 80 is cooled by a circulating cooling water spacer bush, so that the copper liquid 100 is condensed into solid in the first hollow crystallizer 80, and the upper end of the solid is pulled upwards by a traction mechanism to form a first primary cast rod.
and step S30, the first primary casting rod is sent into a dip coating chamber 50 containing copper liquid, a large amount of heat is absorbed when the first primary casting rod passes through the dip coating chamber 50, and the copper liquid 100 is uniformly attached to the surface of the first primary casting rod to form a middle-grade casting rod.
And step S50, cooling the medium-grade cast rod to a temperature according with the process.
and step S70, carrying out hot rolling treatment on the cooled intermediate-grade cast rod to generate a copper rod. Specifically, the cooled intermediate-grade cast rod is hot-rolled on line to the required product specification by a vertical rolling mill. Preferably, the reducing protective gas is also introduced in the cooling and hot rolling steps.
and step S90, winding the copper rod into a coil.
further, the first primary casting rod is subjected to a stretching process and a peeling process before being sent into the dip coating chamber 50, and copper scraps generated in the peeling process are conveyed to a smelting device. Wherein, the drawing procedure is that the first primary casting rod is extruded and shaped by a die of a single-head wire drawing machine. And in the peeling procedure, a peeling device is used for peeling off a layer of the surface of the first primary casting rod to form an absolutely clean core rod. Preferably, the copper scrap produced by the peeling process is conveyed to a melting device, in particular, a melting furnace 30.
Second embodiment
As shown in fig. 3 and 5, a second hollow mold 120 is further provided in the first embodiment, and when the output speed of the first primary cast rod is higher than that of the medium-grade cast rod, the copper liquid is controlled to be delivered to the second hollow mold 120. Specifically, a second hollow crystallizer 120 is arranged in the second holding furnace 90, the copper liquid 100 is condensed into a solid in the second hollow crystallizer 120, the upper end of the solid is pulled upwards by a pulling mechanism to form a second primary cast rod, and the second primary cast rod is subjected to a cold rolling process and a looping process to form a copper rod finished product. In particular, since the first hollow mold 80 is required to ensure a certain output speed when crystallizing the first primary cast strand. The first primary cast strand produced may be produced at a faster rate than the first primary cast strand passes through the dip chamber, which may cause the first primary cast strand to accumulate before entering the dip chamber. Of course, the first primary casting bar may be looped and then fed to the dipping chamber 50, depending on the situation of the dipping chamber. However, this embodiment matches the coating speed of the copper rod by the dip coating chamber by introducing a second hollow crystallizer 120. Specifically, the molten copper may be transferred to a second hollow mold 120, the second hollow mold 120 may produce a second primary cast rod, and the subsequent processes of the second primary cast rod are a cold rolling process and a looping process, so as to produce a finished copper rod. Of course, the quality of the resulting copper bar is different due to the different subsequent processes of the first primary bar and the second primary bar. Through the arrangement, the coating speed matching of the first primary casting rod and the dip coating chamber can be ensured, and the copper rod with another quality can be simultaneously generated. Therefore, depending on the quality requirements of the copper rod, the copper rod may be produced in two qualities at the same time, only by dip coating, or only by crystallization. Effectively improves the variety and the productivity of the copper rod production.
The above illustrates the method of copper rod production, and the following describes in detail the copper rod production system corresponding thereto, including the copper rod production systems corresponding to the first embodiment and the second embodiment, respectively.
Copper rod production system corresponding to first embodiment
Comprises a preheating furnace 20, a melting furnace 30, a chute 110, a first heat preservation furnace 40, a dip coating chamber 50, a cooling chamber 60, a hot rolling device 70, a second heat preservation furnace 90 and a first hollow crystallizer 80. Wherein, the preheating furnace 20, the melting furnace 30, the chute 110 and the first holding furnace 40 are communicated in sequence. Combustible gas is introduced into the preheating furnace 20, the copper material 10 is conveyed into the preheating furnace 20 to be combusted and preheated, and attachments on the surface of the copper material 10 are burnt out. Specifically, the incomplete combustion reaction (partial cracking), which is an exothermic reaction, is performed in the preheating furnace 22, so that the combustion furnace does not need external heat energy to perform the reaction continuously by the heat generated by combustion thereof. The preheating furnace and the melting furnace are connected in a sealing mode to prevent heat loss, the preheated copper material is conveyed to the melting furnace in a sealing mode to be melted into copper liquid, and the copper liquid flows into the first heat preservation furnace 40 through the chute 110. Further, nitrogen gas or inert gas, and a deoxidizer are charged into the melting furnace 30 and the first holding furnace 40 to remove oxygen from the molten copper.
The copper liquid 100 from the first holding furnace 40 enters the second holding furnace 90 and the dip-coating chamber 50 at the same time, wherein the copper liquid entering the second holding furnace 90 enters the first hollow crystallizer 80 to be condensed into solid, and a traction mechanism (not shown) pulls the upper end of the solid upwards to form a first primary casting rod. It is not excluded herein that the first holding furnace 40 and the second holding furnace 90 are combined into one. The first primary casting bar is passed upwardly into the dipping chamber 50, specifically, into the dipping chamber 50 from the lower end of the dipping chamber 50, and out of the upper end of the dipping chamber 50. Wherein, the dip coating chamber can adopt a graphite crucible and has the function of heat preservation. During the passage of the first primary cast strand through the dip coating chamber 50, the copper liquid is applied to the surface of the first primary cast strand, resulting in a medium-grade cast strand. The intermediate cast strand enters the cooling chamber 60 and is cooled to the temperature required by the process. The cooled intermediate-grade cast rod enters a hot rolling device 70, and the intermediate-grade cast rod is subjected to hot rolling treatment to form a copper rod. And the copper rod is wound into a ring by the first ring forming device to form a finished copper rod product. The hot-rolled copper rod can be coiled after sequentially passing through the blow-drying device and the flaw detection device.
The device further comprises a stretching device and a peeling device which are sequentially arranged, wherein the stretching device is used for extruding and shaping the first primary casting rod; the peeling device is used for peeling the first primary casting rod.
Further, the device also comprises a conveying device which is used for conveying the copper scraps produced by the peeling device to the smelting device.
Copper rod production system corresponding to the second embodiment
The copper rod production system corresponding to the second embodiment is additionally provided with a second hollow crystallizer 120, a cold rolling device 130 and a second ring forming device on the basis of the first embodiment, wherein the second hollow crystallizer 120 is also communicated with a second holding furnace 90. The molten copper 100 can also be conveyed to a second hollow crystallizer 120 communicated with the second holding furnace 90. And a traction mechanism (not shown) draws the solid upper end upwards to form a second primary cast rod, and the second primary cast rod passes through the cold rolling device 130 and a second ring forming device and then is subjected to ring forming treatment to form a copper rod finished product with another quality.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a copper pole production system which characterized in that, copper pole production system includes:
Smelt the device, smelt the device including the preheater, melting furnace, chute, the heat preservation stove that communicate in proper order, wherein:
the preheating furnace is used for preheating the copper material;
the melting furnace is used for deoxidizing the preheated copper material, melting the preheated copper material into copper liquid, and conveying the copper liquid to the holding furnace through the chute for heat preservation;
The heat preservation furnace is used for preserving heat of the copper liquid and conveying the copper liquid to the dip-coating chamber and the first hollow crystallizer;
The first hollow crystallizer is used for crystallizing the copper liquid to form a first primary casting rod;
a dip coating chamber, which is used for coating the copper liquid on the surface of the first primary cast rod to generate a middle-grade cast rod;
The hot rolling device is used for carrying out hot rolling treatment on the intermediate-grade cast rod;
And the first coiling device is used for coiling the hot-rolled middle-stage cast rod.
2. The copper bar production system according to claim 1,
The device comprises a first primary casting rod, a second primary casting rod, a peeling device and a conveying device, wherein the first primary casting rod is fixed on the first primary casting rod;
The peeling device is used for peeling the extruded and shaped first primary cast rod;
The conveying device is used for conveying copper scraps generated by the peeling device to the smelting device.
3. the copper bar production system according to claim 1,
The device also comprises a blow-drying device which is used for blowing off the cooling liquid sprayed on the copper rod in the hot rolling process.
4. The copper bar production system according to claim 1,
The wire drawing device is used for carrying out wire drawing treatment on the middle-grade cast rod wound into a ring.
5. The copper rod production system according to claim 1, further comprising a second hollow crystallizer, a cold rolling device, a second ring forming device,
The second hollow crystallizer is used for enabling the copper liquid conveyed into the second hollow crystallizer by the holding furnace to generate a second primary casting rod;
The cold rolling device is used for performing cold rolling treatment on the second primary casting rod;
And the second coiling device is used for coiling the second primary cast rod subjected to the cold rolling treatment into a coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164126.9U CN209753960U (en) | 2018-12-21 | 2018-12-21 | Copper pole production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164126.9U CN209753960U (en) | 2018-12-21 | 2018-12-21 | Copper pole production system |
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| CN209753960U true CN209753960U (en) | 2019-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231627A (en) * | 2021-05-07 | 2021-08-10 | 无锡福沃德智能装备有限公司 | Copper water conveying equipment for copper wire production |
-
2018
- 2018-12-21 CN CN201822164126.9U patent/CN209753960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231627A (en) * | 2021-05-07 | 2021-08-10 | 无锡福沃德智能装备有限公司 | Copper water conveying equipment for copper wire production |
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