CN105274354A - Method for melting copper through line frequency furnace - Google Patents
Method for melting copper through line frequency furnace Download PDFInfo
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- CN105274354A CN105274354A CN201510833197.1A CN201510833197A CN105274354A CN 105274354 A CN105274354 A CN 105274354A CN 201510833197 A CN201510833197 A CN 201510833197A CN 105274354 A CN105274354 A CN 105274354A
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Abstract
The invention discloses a method for melting copper through a line frequency furnace. The method comprises the following steps that 1, a waste copper piece and waste are subjected to primary treatment; 2, screening is carried out; 3, classification is carried out; 4, accessories are fed into furnaces, wherein the accessory I, the accessory II and the accessory III are fed into the shaft furnace, the open-hearth furnace and the line frequency cored copper melting copper to be refined, and a product I, a product II and a product III are obtained; 5, the product I and the product II are transported to a copper continuous casting and rolling unit for casting treatment, a steel rod is obtained, and the product III is placed in a pig casting machine to be machined and treated, and a copper ingot is obtained; and 6, the steel rod in the step 5 is drawn, and a qualified copper piece is obtained. The method for melting copper through the line frequency furnace achieves energy saving and is environmentally friendly, and manufactured steel is good in quality.
Description
Technical field
The present invention relates to a kind of method that main frequency furnace melts copper, belong to the preparing technical field of reclaimed copper.
Background technology
Smelting enterprise of China and processing enterprise's scale constantly expand, raw materials requirement is caused to increase, China is the consumption big country of copper, copper resource wretched insufficiency, the copper scrap resource-constrained of domestic generation, imbalance between supply and demand is more and more outstanding, domestic smelting enterprise production capacity is expanded rapidly, smeltery more and more will depend on copper scrap for the demand of raw material, copper scap resource copper scap is the raw material of reclaimed copper, it derives from the production of society, circulation, the every field such as consumption, that a classification is many, the raw material of the copper of complicated component, by to the classification of copper scrap and processing refining, good copper material can be obtained, but in prior art, comprise screening to the process of copper scrap, classify and refine several step, in refining process, adopt that stationary reverberatory furnace is energy-conservation processes, in this process, calorific loss is more, and energy-saving effect is not good.
Summary of the invention
(1) technical problem that will solve
For solving the problem, the present invention proposes a kind of method that main frequency furnace melts copper, energy-conserving and environment-protective, and obtained steel product quality is good.
(2) technical scheme
A kind of main frequency furnace of the present invention melts the method for copper, comprises the following steps:
Step one: the first process of copper scrap part and waste material, will collect the copper scrap part that comes and waste material is disassembled, and by the copper scrap part after disassembling and waste material dividing processing;
Step 2: screening, disassembles the copper scrap part after segmentation by step one and waste material puts into sieve apparatus and screen cloth ball mill screens;
Step 3: classification, copper scrap part step 2 screened and waste material carry out classification process through airflow separator, air-flow shaking table, pneumatic separator and magnetic grader, obtain copper content be 98% batching I, copper content be the batching II of the 95% and batching III of copper content 40% ~ 95%;
Step 4: batching shove charge, is respectively charged into batching I, batching II and batching III in shaft furnace, open hearth and power frequency cored copper smelting furnace and refines, obtain product I, product II and product III respectively;
Step 5: product I and product II is transported to copper continuous casting Continuous mill train and carries out casting process, obtain steel pole; Product III is put into pig moulding machine and carries out processing treatment, obtain copper ingot;
Step 6: the steel pole in step 5 is carried out drawing process, obtain qualified copper piece.
Further, in described step 4, described batching III has also produced waste gas while refining in power frequency cored copper smelting furnace and obtaining product III, waste gas is delivered to bag filter by transport pipe and carries out waste-gas cleaning.
Further, combustion air interchanger is provided with between described shaft furnace and open hearth; Sweet natural gas and air is filled with in described combustion air interchanger.
Further, described shaft furnace is provided with firing system and Controlling System; Described firing system is provided with two combustion of natural gas nozzles with automatic firing mechanism, and the below of each combustion of natural gas nozzle is furnished with an oxygen hose on furnace wall; The jet power of described combustion of natural gas nozzle is 200 ~ 1OOOkg/h, and regulation range is 1:5; Described Controlling System is made up of automatic system and imaging system; Described imaging system comprise band keyboard computer, and watch-dog be electrically connected with computer, mouse, interface and be arranged at scene two controlling boards.
Further, described open hearth is Siemens-Martin regenerative open-hearth furnace.
Further, described copper continuous casting Continuous mill train comprises six wheeled liquid filling machine and milling train, and the electric control system to be electrically connected with liquid filling machine and milling train, and the programmable logic controller be electrically connected with electric control system, and the man-machine interface, the main and auxiliaries that are electrically connected with programmable logic controller; Described liquid filling machine comprises the copper ingot that casting cross section is 2330 ㎜ 2; Described milling train is made up of the forebay of four groups of dual roll types and the afer bay of eight groups of three-roller types; The electric control system of described copper continuous casting Continuous mill train is made up of direct-current machine and siemens's full digital speed control device.
(3) beneficial effect
Compared with prior art, main frequency furnace of the present invention melts the method for copper, and the good leak tightness of shaft furnace, takes zone heating, and calorific loss is few, and energy-saving effect is obvious, and more energy-conservation than stationary reverberatory furnace 30%; Due to good leak tightness, environmental protection facility is perfect, and thoroughly can solve stationary reverberatory furnace in over-emitting black exhaust problem that is reinforced and reduction phase, environmental benefit is good, and the labour intensity of workman is low, and work situation health is improved greatly; In copper continuous casting Continuous mill train six wheeled liquid filling machine, by the copper ingot that casting cross section is 2330 ㎜ 2, the eddy current that copper water produces when casting greatly reduces, the bubble in copper ingot heart portion and slight crack are greatly reduced, copper ingot quality is better than normal beam technique casting mode, and cooling moisture nine road cools from crystallizing wheel is inside and outside with two sides, and cooling point is rationally distributed, ensure that ingot casting compact crystallization is even, its ingot quality is more excellent; Before milling train, the compression ratio in 6 roads increases greatly, effectively improve copper ingot internal grain structure, especially ingot casting slight crack and bubble is eliminated significantly, the quality of copper bar is made to be greatly improved and to stablize, also be convenient to draw filament, configuration hydraulic pressure take-up mode, lopping is neatly attractive in appearance, is convenient to long-distance transportation; Heat accumulating type melting open hearth, energy-saving effect is remarkable, and more energy-conservation than traditional smelting furnace 50%, fuel burns under high-temperature low-oxygen concentration operating mode, and being formed in stove does not have stationary flame diffusion flame, eliminates the district of localized hyperthermia that stationary flame produces; Flame is almost full of whole burner hearth, make furnace temperature more even, heat-accumulating burner makes the position of flame and furnace gas flow direction frequently change, enhance furnace gas convection current, reduce dead angle in stove, also make furnace temperature more even, reduce localized hyperthermia and oxygen-enriched environment to the volatilization of copper liquid and oxygenizement, make refractory materials in stove alleviate heat and to shake impact.
Embodiment
Main frequency furnace melts a method for copper, comprises the following steps:
Step one: the first process of copper scrap part and waste material, will collect the copper scrap part that comes and waste material is disassembled, and by the copper scrap part after disassembling and waste material dividing processing;
Step 2: screening, disassembles the copper scrap part after segmentation by step one and waste material puts into sieve apparatus and screen cloth ball mill screens;
Step 3: classification, copper scrap part step 2 screened and waste material carry out classification process through airflow separator, air-flow shaking table, pneumatic separator and magnetic grader, obtain copper content be 98% batching I, copper content be the batching II of the 95% and batching III of copper content 40% ~ 95%;
Step 4: batching shove charge, is respectively charged into batching I, batching II and batching III in shaft furnace, open hearth and power frequency cored copper smelting furnace and refines, obtain product I, product II and product III respectively;
Step 5: product I and product II is transported to copper continuous casting Continuous mill train and carries out casting process, obtain steel pole; Product III is put into pig moulding machine and carries out processing treatment, obtain copper ingot;
Step 6: the steel pole in step 5 is carried out drawing process, obtain qualified copper piece.
Wherein, in described step 4, described batching III has also produced waste gas while refining in power frequency cored copper smelting furnace and obtaining product III, waste gas is delivered to bag filter by transport pipe and carries out waste-gas cleaning.
Combustion air interchanger is provided with between described shaft furnace and open hearth; Sweet natural gas and air is filled with in described combustion air interchanger.
Described shaft furnace is provided with firing system and Controlling System; Described firing system is provided with two combustion of natural gas nozzles with automatic firing mechanism, and the below of each combustion of natural gas nozzle is furnished with an oxygen hose on furnace wall; The jet power of described combustion of natural gas nozzle is 200 ~ 1OOOkg/h, and regulation range is 1:5; Described Controlling System is made up of automatic system and imaging system; Described imaging system comprise band keyboard computer, and watch-dog be electrically connected with computer, mouse, interface and be arranged at scene two controlling boards.
Described open hearth is Siemens-Martin regenerative open-hearth furnace.
Described copper continuous casting Continuous mill train comprises six wheeled liquid filling machine and milling train, and the electric control system to be electrically connected with liquid filling machine and milling train, and the programmable logic controller to be electrically connected with electric control system, and the man-machine interface, the main and auxiliaries that are electrically connected with programmable logic controller; Described liquid filling machine comprises the copper ingot that casting cross section is 2330 ㎜ 2; Described milling train is made up of the forebay of four groups of dual roll types and the afer bay of eight groups of three-roller types; The electric control system of described copper continuous casting Continuous mill train is made up of direct-current machine and siemens's full digital speed control device.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (6)
1. main frequency furnace melts a method for copper, it is characterized in that: comprise the following steps:
Step one: the first process of copper scrap part and waste material, will collect the copper scrap part that comes and waste material is disassembled, and by the copper scrap part after disassembling and waste material dividing processing;
Step 2: screening, disassembles the copper scrap part after segmentation by step one and waste material puts into sieve apparatus and screen cloth ball mill screens;
Step 3: classification, copper scrap part step 2 screened and waste material carry out classification process through airflow separator, air-flow shaking table, pneumatic separator and magnetic grader, obtain copper content be 98% batching I, copper content be the batching II of the 95% and batching III of copper content 40% ~ 95%;
Step 4: batching shove charge, is respectively charged into batching I, batching II and batching III in shaft furnace, open hearth and power frequency cored copper smelting furnace and refines, obtain product I, product II and product III respectively;
Step 5: product I and product II is transported to copper continuous casting Continuous mill train and carries out casting process, obtain steel pole; Product III is put into pig moulding machine and carries out processing treatment, obtain copper ingot;
Step 6: the steel pole in step 5 is carried out drawing process, obtain qualified copper piece.
2. main frequency furnace according to claim 1 melts the method for copper, it is characterized in that: in described step 4, described batching III has also produced waste gas while refining in power frequency cored copper smelting furnace and obtaining product III, waste gas is delivered to bag filter by transport pipe and carries out waste-gas cleaning.
3. main frequency furnace according to claim 1 melts the method for copper, it is characterized in that: be provided with combustion air interchanger between described shaft furnace and open hearth; Sweet natural gas and air is filled with in described combustion air interchanger.
4. main frequency furnace according to claim 1 melts the method for copper, it is characterized in that: described shaft furnace is provided with firing system and Controlling System; Described firing system is provided with two combustion of natural gas nozzles with automatic firing mechanism, and the below of each combustion of natural gas nozzle is furnished with an oxygen hose on furnace wall; The jet power of described combustion of natural gas nozzle is 200 ~ 1OOOkg/h, and regulation range is 1:5; Described Controlling System is made up of automatic system and imaging system; Described imaging system comprise band keyboard computer, and watch-dog be electrically connected with computer, mouse, interface and be arranged at scene two controlling boards.
5. main frequency furnace according to claim 1 melts the method for copper, it is characterized in that: described open hearth is Siemens-Martin regenerative open-hearth furnace.
6. main frequency furnace according to claim 1 melts the method for copper, it is characterized in that: described copper continuous casting Continuous mill train comprises six wheeled liquid filling machine and milling train, and the electric control system to be electrically connected with liquid filling machine and milling train, and the programmable logic controller to be electrically connected with electric control system, and the man-machine interface, the main and auxiliaries that are electrically connected with programmable logic controller; It is 2330 ㎜ that described liquid filling machine comprises casting cross section
2copper ingot; Described milling train is made up of the forebay of four groups of dual roll types and the afer bay of eight groups of three-roller types; The electric control system of described copper continuous casting Continuous mill train is made up of direct-current machine and siemens's full digital speed control device.
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| CN201510833197.1A CN105274354B (en) | 2015-11-26 | 2015-11-26 | A kind of method of the molten copper of main frequency furnace |
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| CN201510833197.1A CN105274354B (en) | 2015-11-26 | 2015-11-26 | A kind of method of the molten copper of main frequency furnace |
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| CN105274354B CN105274354B (en) | 2017-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090929A (en) * | 2019-05-14 | 2019-08-06 | 洛阳烟云涧青铜器有限公司 | A kind of technique making imitation of an ancient bronze and its smelt roasting system |
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| RU2205884C1 (en) * | 2001-11-28 | 2003-06-10 | Омский государственный университет | Method of pyrometallurgical processing of copper- containing raw material |
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| JP2012087376A (en) * | 2010-10-20 | 2012-05-10 | Hitachi Cable Ltd | Recycling method of copper scrap material |
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2015
- 2015-11-26 CN CN201510833197.1A patent/CN105274354B/en active Active
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| CN1162648A (en) * | 1996-04-15 | 1997-10-22 | 邢贵生 | Method and apparatus for producing oxygenless copper from coarse copper |
| CN2288185Y (en) * | 1996-04-15 | 1998-08-19 | 邢贵生 | Mating device for producing oxygen-free copper with composition copper |
| RU2205884C1 (en) * | 2001-11-28 | 2003-06-10 | Омский государственный университет | Method of pyrometallurgical processing of copper- containing raw material |
| CN101230421A (en) * | 2007-12-26 | 2008-07-30 | 东华大学 | Method for extracting gold from waste circuit boards |
| JP2012087376A (en) * | 2010-10-20 | 2012-05-10 | Hitachi Cable Ltd | Recycling method of copper scrap material |
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| 刘宏: "废杂铜冶炼技术在铜线坯生产中的应用", 《铜业工程》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090929A (en) * | 2019-05-14 | 2019-08-06 | 洛阳烟云涧青铜器有限公司 | A kind of technique making imitation of an ancient bronze and its smelt roasting system |
| CN110090929B (en) * | 2019-05-14 | 2020-12-04 | 洛阳烟云涧青铜器有限公司 | Process for manufacturing antique bronze ware and smelting and roasting system thereof |
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| CN105274354B (en) | 2017-04-05 |
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