CN103526043A - Purple mixed copper smelting and oxidation-reduction system - Google Patents
Purple mixed copper smelting and oxidation-reduction system Download PDFInfo
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- CN103526043A CN103526043A CN201310524753.8A CN201310524753A CN103526043A CN 103526043 A CN103526043 A CN 103526043A CN 201310524753 A CN201310524753 A CN 201310524753A CN 103526043 A CN103526043 A CN 103526043A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a purple mixed copper smelting and oxidation-reduction system which comprises a reverberatory furnace body. A flame combustion device and a reduction device are arranged on the reverberatory furnace body, the flame combustion device comprises a fuel feeding pipeline, a combustion improver feeding pipeline and a combustor arranged on the reverberatory furnace body, and the reduction device comprises a reduction control system connected with the reverberatory furnace body. The flame combustion device further comprises a control valve set, a PLC, a computer operating screen and a material sensor, the reduction device further comprises a methyl alcohol feeding box, a feed pump, a smoke waste heat decomposer, a decomposed gas cooler, a decomposed gas molecule absorber, a compression system and a gas storage tank, and the methyl alcohol feeding box, the feed pump, the smoke waste heat decomposer, the decomposed gas cooler, the decomposed gas molecule absorber, the compression system and the gas storage tank are communicated in sequence. The purple mixed copper smelting and oxidation-reduction system is simple in structure, strong in practicality and especially suitable for a purple mixed copper reverberatory furnace.
Description
Technical field
The invention belongs to smelting and processing of metals field, be specifically related to a kind of purple composition brass melting redox system.
Background technology
Copper industry is resource-type industry, is the important component part of national economy.Since reform and opening-up, China Copper industry, by deepening constantly reform, is adjusted structure, has realized great-leap-forward development, and industry size constantly expands, the sustainable growth of main products output, and industry overall strength progressively strengthens, and competitive power gets a promotion.Meanwhile, along with national economy is fast-developing and people's living standard improves constantly, China increases day by day to the demand of copper metal.Therefore, adhering to Developing Circulation Economy, walk to economize on resources, the new road toward industrialization of protection of the environment, is the inevitable choice of copper industry Sustainable development.
And purple composition brass to be copper content be not less than 90% useless composition brass, its social yield accounts for 2/3 of whole copper scraps, utilizes the smelting of purple composition brass to increase the material source of copper conductor, has become the problem that the whole world is paid close attention to.Wherein, purple copper continuous casting and rolling bar technique processed is exactly to utilize the advanced technologies of purple composition brass production of copper bar, and it is to be mainly raw material by adopting purple composition brass, after sorting, fusing, oxidation and reduction reaction through reverberatory furnace obtain copper liquid, then make copper liquid enter continuous casting continuous rolling equipment casting to obtain copper bar.The core link that this energy saving technology reduces discharging is just reverberatory furnace, reverberatory furnace in the market mainly comprises stationary reverberatory furnace, tilting-type reverberatory furnace and bracklesburg furnace, due to stationary reverberatory furnace have simple in structure, cost is low, adaptability to raw material is strong, the easy advantage such as operation, most of enterprise of domestic reclaimed copper industry all adopts this kind of furnace binding.
Yet, the firing system of this stationary reverberatory furnace is all generally to make ignition dope with air, owing to containing 79% nitrogen in air, useless waste gas, also from fume emission, take away amount of heat, secondly air heat conduction coefficient of blackness is low, during burning, copper material heat absorption efficiency is low, thereby reduction temperature of combustion, in order to improve furnace temperature, flame can only be controlled at micro-reducing atmosphere, rate of fuel consumption is high, benefit is low, because of anoxic, on copper material with a small amount of organic carbon, black smoke is many, fusing time is long, and due to nitrogen a large amount of in air, also can generate harmful oxynitride, need environmental protection equipment to remove.
Its reduction is mainly adopt natural gas or insert the modes such as tree and reduce, and also has heavy oil, diesel oil, carbon dust or reductive agent etc. to reduce, and because at high temperature all can cracking bearing carbon, carbon can not be completely oxidized, and can produce a large amount of black smokes, and environmental protection treatment is more difficult.
Summary of the invention
The object of the present invention is to provide a kind of man-hour short, fuel consumption is low, the purple composition brass melting redox system of the high and environmental protection and energy saving of furnace temperature.
This purple composition brass melting redox system provided by the invention, comprise the reflection body of heater with discharge flue, on described reflection body of heater, flame combustion apparatus and reducing apparatus are installed, described flame combustion apparatus comprises fuel feed pipeline, ignition dope service and the burner being arranged on reflection body of heater, described reducing apparatus comprises the reduction Controlling System being connected with reflection body of heater, described flame combustion apparatus also comprises control valve group, PLC controller, computation screen and material sensor, described reducing apparatus also comprises the methyl alcohol service tank being communicated with successively, supply pump, fume afterheat decomposer, compression system and gas-accumulating tank, described ignition dope service adopts purity oxygen to supply with, described fuel feed pipeline and ignition dope service are communicated with the inlet mouth of control valve group respectively, the air outlet of described control valve group is communicated with burner, described PLC controller is connected between control valve group and computation screen and controls flow and the ratio of gas in control valve group, what described burner level angle was variable is arranged on reflection body of heater, described material installation of sensors is in the exit of burner and be connected with PLC controller for following the tracks of material situation and send actuate signal and adjust the angle between burner and sea line, described fume afterheat decomposer is communicated with discharge flue, the air outlet of described gas-accumulating tank is connected with reduction Controlling System.
Faster for the present invention is burnt, described fuel feed pipeline adopts natural gas to supply with.
More abundant for the present invention is burnt, downward-sloping being arranged on reflection body of heater of shower nozzle of described burner also and between sea line is the angle of 5 °～35 °.
Described burner adopts flaming combustion or flameless combustion.
Described burner adopts flaming combustion and the length of flame to regulate.
For preventing that the present invention is after methanol decomposition reaction, also have residual methyl alcohol and moisture, at described fume afterheat decomposer and compression system, be also connected with decomposition gas water cooler and decomposition gas molecular adsorption device in turn.
The present invention is by adopting natural gas and purity oxygen by control valve group, by PLC controller, control its flow and ratio, add the adjusting of burner, on a burner, realize and have the multiple combustion systems such as flame and flameless combustion, enter after burner mixes and spray, in stove, burn, realize high temperature, the burning of efficient oxidation atmosphere, and can control the furnace gas atmosphere of the interior multiple oxidation of stove and reduction; By material sensor, automatically transfer burner's angle, follow the tracks of material, shorten man-hour, can, according to the organic content of furnace charge, increase amount of oxygen more than needed, and keep furnace temperature; The cracked gas of methyl alcohol is carbon containing not, has eliminated the black smoke that carbon black produces, and cost is lower than natural gas and slotting tree.The present invention is simple in structure, practical, is particularly suitable for purple composition brass reverberatory furnace.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As can be seen from Figure 1, this purple composition brass melting redox system of the present invention, comprise the reflection body of heater 1 with discharge flue 11, on reflection body of heater 1, flame combustion apparatus 2 is installed, oxidation unit 3 and reducing apparatus 4, wherein flame combustion apparatus 2 comprises fuel feed pipeline 21, ignition dope service 22, control valve group 23, PLC controller 24, computation screen 25, burner 26 and material sensor 27, reducing apparatus 4 also comprises the methyl alcohol service tank 41 being communicated with successively, supply pump 42, fume afterheat decomposer 43, decomposition gas water cooler 44, decomposition gas molecular adsorption device 45, compression system 46, gas-accumulating tank 47 and reduction Controlling System 48, fuel feed pipeline 21 adopts natural gas to supply with, ignition dope service 22 adopts purity oxygen to supply with, fuel feed pipeline 21 and ignition dope service 22 are communicated with the inlet mouth of control valve group 23 respectively, the air outlet of control valve group 23 is communicated with burner 26, PLC controller 24 is connected in and between control valve group 23 and computation screen 25, is used for controlling the ratio of the interior natural gas of control valve group 23 and purity oxygen and the gas flow at this control valve group 23 places, air outlets, what burner 26 level angles were variable is arranged on reflection body of heater 1, the exit that material sensor 27 is arranged on burner 26 is connected with PLC controller 24 for following the tracks of material situation and sending the angle between actuate signal adjustment burner 26 and sea line, fume afterheat decomposer 43 is communicated with discharge flue 11, reduction Controlling System 48 is connected with reflection body of heater 1.
In the present invention, being arranged on reflection body of heater 1 that the shower nozzle of burner 26 is downward-sloping also and between sea line is the angle of 5 °～35 °.
Burner 26 of the present invention can be realized flaming combustion or flameless combustion, and when realizing flaming combustion, its length of flame can regulate.
Specific embodiment:
Use capacity is the purple composition brass fusing reverberatory furnace of 80 tons, burner 26 adopts flaming combustion, flame length control is within 2～6 meters, natural gas and purity oxygen enter control valve group 23 by fuel feed pipeline 21 and ignition dope service 22 respectively, by PLC controller 24, control the ratio of the interior natural gas of this control valve group 23 and purity oxygen and the gas flow at this control valve group 23 places, air outlet, oxygen is crossed and is taken advantage of 10%, enter burner 26, ejection after mixing, in reverberatory furnace, burn, and follow the tracks of material by material sensor 27, send actuate signal to PLC controller, automatically transfer burner 26 angle levels downwards between 5 °～35 °, directly beat on material, and show related data from computation screen 25, fusing time 6 hours, strong oxidative slagging is abundant, the removal of impurity.
With reverberatory furnace, be oxidized, reduce processing, 1180 ℃ of redox temperature.During oxide treatment, pass into the oxygen rich air of 1.0MPa pressure as oxygenant, oxidization time 3 hours; By regulating PLC controller 24 and burner 26, oxidation stage adopts flameless combustion mode to be incubated.When reduction is processed, by methyl alcohol service tank 41, provide methyl alcohol, through supply pump 42, fume afterheat decomposer 43 utilizes reflection body of heater 1 to be heated degree more than 200 from the heat of the furnace gas flue gas of discharge flue 11 discharges, breaking under an agent effect, just can be cleaved into 33%CO and 66%H2 mixed gas, by decomposition gas water cooler 44 and decomposition gas molecular adsorption device 45, absorb residual methyl alcohol and moisture again, through compression system 46, be pressurized to after 0.2Mpa-0.6Mpa, be stored in gas-accumulating tank 37, as reductive agent, by reducing Controlling System 48, control and send into furnace reduction, 4 hours recovery times.
When burner 26 is when angle level is downwards between 8 °～23 °, to its sampling analysis, meet the requirements.Now, reduction is without black smoke, and combustion gas is per ton drops to 38 cubic metres, 5 cubic metres per ton of reduction gas mixture, the cost that deduction oxygen increases, fuel cost decline 30% per ton, reduction gas expense decline 10%--15% from 80 cubic metres.
Claims (6)
1. a purple composition brass melting redox system, comprise the reflection body of heater (1) with discharge flue (11), flame combustion apparatus (2) and reducing apparatus (4) are installed on described reflection body of heater (1), described flame combustion apparatus (2) comprises fuel feed pipeline (21), ignition dope service (22) and be arranged on the burner (26) in reflection body of heater (1), described reducing apparatus (4) comprises the reduction Controlling System (48) being connected with reflection body of heater (1), it is characterized in that: described flame combustion apparatus (2) also comprises control valve group (23), PLC controller (24), computation screen (25) and material sensor (27), described reducing apparatus (4) also comprises the methyl alcohol service tank (41) being communicated with successively, supply pump (42), fume afterheat decomposer (43), compression system (46) and gas-accumulating tank (47), described ignition dope service (22) adopts purity oxygen to supply with, described fuel feed pipeline (21) and ignition dope service (22) are communicated with the inlet mouth of control valve group (23) respectively, the air outlet of described control valve group (23) is communicated with burner (26), described PLC controller (24) is connected between control valve group (23) and computation screen (25) and controls flow and the ratio of the interior gas of control valve group (23), what described burner (26) level angle was variable is arranged on reflection body of heater (1), described material sensor (27) is arranged on the exit of burner (26) and is connected with PLC controller (24) and is used for following the tracks of the angle between material situation transmission actuate signal adjustment burner (26) and sea line, described fume afterheat decomposer (43) is communicated with discharge flue (11), the air outlet of described gas-accumulating tank (47) is connected with reduction Controlling System (48).
2. purple composition brass melting redox system according to claim 1, is characterized in that: described fuel feed pipeline (21) adopts natural gas to supply with.
3. purple composition brass melting redox system according to claim 1, is characterized in that: the downward-sloping reflection body of heater (1) that is arranged on of shower nozzle of described burner (26) above also and between sea line is the angle of 5 °～35 °.
4. purple composition brass smelting furnace flame combustion apparatus according to claim 1, is characterized in that: described burner (6) adopts flaming combustion or flameless combustion.
5. purple composition brass smelting furnace flame combustion apparatus according to claim 4, is characterized in that: described burner (6) adopts flaming combustion and the length of flame to regulate.
6. purple composition brass melting redox system according to claim 1, is characterized in that: at described fume afterheat decomposer (43) and compression system (46), be also connected with decomposition gas water cooler (44) and decomposition gas molecular adsorption device (45) in turn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310524753.8A CN103526043B (en) | 2013-10-31 | 2013-10-31 | Purple mixed copper smelting and oxidation-reduction system |
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| CN201310524753.8A CN103526043B (en) | 2013-10-31 | 2013-10-31 | Purple mixed copper smelting and oxidation-reduction system |
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| CN103526043B CN103526043B (en) | 2014-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132710A (en) * | 2015-07-06 | 2015-12-09 | 河北泰斗线缆集团有限公司 | Natural gas oxygen-fuel combustion smelting method |
| CN111390132A (en) * | 2020-04-22 | 2020-07-10 | 无锡隆达金属材料有限公司 | Anti-oxidation casting method for B30 alloy cast ingot |
Citations (7)
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|---|---|---|---|---|
| US4001013A (en) * | 1971-07-23 | 1977-01-04 | Onahama Seiren Kabushiki Kaisha | Method of operating copper ore smelting reverberatory furnace |
| US20010049982A1 (en) * | 2000-03-03 | 2001-12-13 | Yushiro Hirai | Method of operating a copper smelting furnace |
| CN201770752U (en) * | 2010-08-18 | 2011-03-23 | 江西稀有稀土金属钨业集团有限公司 | Refining system adapting to purple mixed copper or electrolytic copper |
| CN102212705A (en) * | 2011-05-24 | 2011-10-12 | 江西稀有稀土金属钨业集团有限公司 | Combined furnace system for fire refining of red copper scrap |
| CN102240695A (en) * | 2010-05-10 | 2011-11-16 | 贵溪华泰铜业有限公司 | New, efficient and environmentally-friendly process for producing high-quality copper profiled bar |
| CN202072745U (en) * | 2011-05-24 | 2011-12-14 | 江西稀有稀土金属钨业集团有限公司 | Combined furnace system for raw red copper fire refining |
| CN102744257A (en) * | 2012-07-12 | 2012-10-24 | 湖南金龙国际铜业有限公司 | Device and process adopted for rod-making by continuous casting and continuous rolling of red impure copper |
-
2013
- 2013-10-31 CN CN201310524753.8A patent/CN103526043B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4001013A (en) * | 1971-07-23 | 1977-01-04 | Onahama Seiren Kabushiki Kaisha | Method of operating copper ore smelting reverberatory furnace |
| US20010049982A1 (en) * | 2000-03-03 | 2001-12-13 | Yushiro Hirai | Method of operating a copper smelting furnace |
| CN102240695A (en) * | 2010-05-10 | 2011-11-16 | 贵溪华泰铜业有限公司 | New, efficient and environmentally-friendly process for producing high-quality copper profiled bar |
| CN201770752U (en) * | 2010-08-18 | 2011-03-23 | 江西稀有稀土金属钨业集团有限公司 | Refining system adapting to purple mixed copper or electrolytic copper |
| CN102212705A (en) * | 2011-05-24 | 2011-10-12 | 江西稀有稀土金属钨业集团有限公司 | Combined furnace system for fire refining of red copper scrap |
| CN202072745U (en) * | 2011-05-24 | 2011-12-14 | 江西稀有稀土金属钨业集团有限公司 | Combined furnace system for raw red copper fire refining |
| CN102744257A (en) * | 2012-07-12 | 2012-10-24 | 湖南金龙国际铜业有限公司 | Device and process adopted for rod-making by continuous casting and continuous rolling of red impure copper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132710A (en) * | 2015-07-06 | 2015-12-09 | 河北泰斗线缆集团有限公司 | Natural gas oxygen-fuel combustion smelting method |
| CN111390132A (en) * | 2020-04-22 | 2020-07-10 | 无锡隆达金属材料有限公司 | Anti-oxidation casting method for B30 alloy cast ingot |
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| CN103526043B (en) | 2014-10-22 |
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Denomination of invention: Redox system for smelting purple impure copper Effective date of registration: 20221024 Granted publication date: 20141022 Pledgee: Agricultural Bank of China Limited Changsha Wangcheng District sub branch Pledgor: HUNAN C-KINGDOM INTERNATIONAL COPPER Co.,Ltd. Registration number: Y2022430000093 |
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