CN207877834U - A kind of hot addition copper smelter system of copper converting slag - Google Patents
A kind of hot addition copper smelter system of copper converting slag Download PDFInfo
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- CN207877834U CN207877834U CN201820223259.6U CN201820223259U CN207877834U CN 207877834 U CN207877834 U CN 207877834U CN 201820223259 U CN201820223259 U CN 201820223259U CN 207877834 U CN207877834 U CN 207877834U
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- copper
- slag
- blowing
- converting
- stove
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- 239000002893 slag Substances 0.000 title claims abstract description 160
- 239000010949 copper Substances 0.000 title claims abstract description 116
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 111
- 238000007664 blowing Methods 0.000 claims abstract description 105
- 239000003818 cinder Substances 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 238000003723 Smelting Methods 0.000 claims description 43
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 21
- 229910052742 iron Inorganic materials 0.000 abstract description 10
- 206010058490 Hyperoxia Diseases 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000000222 hyperoxic effect Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 6
- 238000010790 dilution Methods 0.000 description 6
- 239000012895 dilution Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910001361 White metal Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009867 copper metallurgy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of hot addition copper smelter system of copper converting slag, including copper converting stove, copper smelter, copper smelter is the upstream workshop section of copper converting stove, the entry level of copper smelter is higher than the slagging height of copper converting stove, the Upstream section of copper smelter is provided with blowing slag holding furnace, and the outlet of blowing slag holding furnace is located above copper converting stove, and copper converting stove side is provided with cinder ladle, cinder ladle is transported to by traveling crane and is returned, and blowing slag is poured into blowing slag holding furnace.It effectively reduces processing energy consumption, efficiently using the hyperoxia gesture in blowing slag, reduces magnetic iron content, improve the rate of recovery of copper.
Description
Technical field
The utility model is related to Copper making field more particularly to copper converting Slag treatment fields.
Background technology
Copper making technique generally comprises melting process and blowing process, and melting process is copper-containing raw material（Such as copper concentrate）Smelting
It is smelt matte, matte enters in converting furnace.Converting furnace is that matte smelting is claimed to contain Cu>98% blister copper, matte is in smelting process
In, while blowing slag is generated, here it is the sources of copper converting slag.
Blowing Slag treatment modes all now are divided to two kinds：The first is that blowing slag is returned to copper smelter and copper converting stove
Between heat preservation settlement electric furnace；Second is returned to smelting furnace after blowing slag cools down.
Such as CN105238930A discloses a kind for the treatment of process of the blowing refinement of the matte clinker and contains cupric 14%~22%
Carry out magnetic separation again after the top blast stove the blowing refinement of the matte clinker direct-water-quenching of iron 32%~48%, copper and iron separated, obtain cupric >=
50% copper material and the magnetic tailings of cupric ＜ 8%.The utility model method makes most copper focus in copper material, just
In directly recycling copper in next step, small part copper is stayed in magnetic tailings, is handled by the method for flotation or melting.Through water quenching
Blowing clinker afterwards does not need levigate, production efficiency height.
Both the above mode has many shortcomings, and first way is the disadvantage is that the blowing slag of hyperoxia gesture be easy to cause guarantor
Temperature sedimentation EAF bottom dross, sedimentation Copper Loss in Slag from Electric increase, and the direct yield of copper reduces, and sedimentation electroslag need to be further processed
（Slag also needs to be further processed the copper inside recycling slag by measures such as flotation）, Slag treatment long flow path, investment is big, production cost
It is high.The disadvantage is that the blowing slag of high-temperature fusion is after supercooling, the heat inside slag is lost the second way, after cooling to blow
Refining slag need to reheat heating back to smelting furnace, and high energy consumption reduces the production capacity of smelting furnace.
Utility model content
The utility model in view of the deficiencies of the prior art, provide it is a kind of hot blowing slag be added to smelting furnace recycle copper
Smelting process.Blow Copper in Slag from 1.5 ~ 25% directly smelt at 45% or more cupric matte, blowing Slag treatment after tailings
Cupric is 0.5% or so, and for the direct yield of copper 99% or more, this method effectively reduces processing energy consumption, efficiently using in blowing slag
Hyperoxia gesture reduces magnetic iron content, improves the hot addition copper smelter system of copper converting slag and its operation side of the rate of recovery of copper
Method.
To realize the utility model aim, following technical scheme is provided：A kind of hot addition copper smelter of copper converting slag
System, including copper converting stove, copper smelter, copper smelter are the upstream workshop section of copper converting stove, and the entry level of copper smelter is high
In the slagging height of copper converting stove, it is characterised in that the Upstream section of copper smelter is provided with blowing slag holding furnace, blowing slag heat preservation
The outlet of stove is located above copper converting stove, and copper converting stove side is provided with cinder ladle, and cinder ladle is transported to by traveling crane and returned, and will be blown
Slag pours into blowing slag holding furnace.
Preferably, copper smelter is bath smelting furnace.
Preferably, bath smelting furnace is oxygen enriched molten bath melting.
Preferably, the outlet of blowing slag holding furnace is provided with slag flow straightener.
Preferably, being provided with chute between blowing slag holding furnace outlet and copper smelter.
It is put preferably, slag flow straightener is the liner graphite bushing Copper Water Jacket being set in the outlet of blowing slag holding furnace
Outlet, the interior setting carbon stick of graphite bushing discharge port adjust the size of discharge port.
Copper smelter can be various metallurgical furnaces used by current copper metallurgy technique, including immersed top-blown stove, oxygen-enriched side
The various smelting furnaces such as blown converter and bottom convertor.
The warm sludge holding furnace that blows can be electric furnace, and graphite electrode or self-baking electrode may be used in electric furnace.The structure shape of electric furnace
Formula is various, can be circular, horizontal circular or the other forms such as trapezoidal.Can also be to be heated using burner
Stove, such as the holding furnace using the other mode of heatings of day hot gas, heavy oil etc..
The capacity of water of blowing slag holding furnace need to be designed according to the quantity of slag and slagging rule of converting furnace generation, energy
Buffer blowing workshop section slagging demand at any time, while the fluctuation that cannot cause the molten bath face of smelting furnace big again.The molten bath of smelting furnace holds
If the 2 times or more for the blowing quantity of slag that product converting furnace generates per hour, blowing slag holding furnace is according to the blowing quantity of slag pair to be processed
Holding furnace is designed, and by the insulating power setting heating electrode and heating burner needed for holding furnace, blowing slag is in holding furnace
The temperature in face maintains 80 DEG C of slag melting point or more, and blowing slag is made to have mobility well in holding furnace discharge process.
Blowing slag insulation furnace outlet slag flow straightener is wanted to realize that slag controls slag flow well, preferably to match melting
Stove.
Blowing warm sludge be added to be gone into melting blowing warm sludge continuously, steadily, flow consistently enter melting
Stove can ensure that the various materials such as the flux that the oxygen gesture for being supplied to smelting furnace and blowing slag are brought all are stable, to molten in this way
Furnace plays booster action well, will not be operated to melting smelting process and bring impact.
Blowing slag holding furnace connects needs with smelting furnace by the way that one section of chute is arranged, in order to make the heat dissipation of blowing slag as possible
It is small, it is desirable that chute is short as possible.
The interface of blowing slag chute and smelting furnace need to be designed according to the specific furnace type structure of smelting furnace, general to require
Mouth is added above the molten bath of smelting furnace.
The operation of blowing slag holding furnace is the hot important process control that melting furnace technology is added of slag of blowing.Slag temperature control
Height, energy consumption increase, and furnace life also has an impact.Slag temperature control system is too low, the poor fluidity of slag, the flow being added in smelting furnace
Bad control.In order to accurately control the operation temperature of holding furnace, can be controlled by the following method：A, in blowing slag heat preservation
Thermocouple is arranged in stove molten bath position, directly measures the temperature of blowing slag and can increase the heat supply of holding furnace if pomace temperature is too low
Amount；If pomace temperature is excessively high, the heating load of holding furnace is reduced；B, it directly measures and sees into trip temperature in blowing slag holding furnace outlet
The mobility of blowing slag is examined, result keeps the temperature required practical heating load to obtain blowing slag according to the observation.
Hot blowing slag, which enters in smelting furnace, carries out blowing slag dilution, and blow Copper in Slag 1.5 ~ 25%, and iron content 35 ~
55%, copper directly becomes matte of the cupric 45% or more after smelting furnace dilution, and Copper in Slag is 0.5% or so, the copper for the slag that blows
Direct yield is 99% or more.To ensure above-mentioned technical-economic index, it is desirable that control blowing slag flow is added smelting furnace and blows per hour
Refining slag flow control parameter be：Maximum is the blowing refinement of the matte of smelting furnace output per hour into the quantity of slag caused by white metal
1.5 times, the flow for the slag that blows is excessive, unfavorable to the dilution for the slag that blows.Slag cleaning mechanism of the hot blowing slag in smelting furnace is as follows：
Fe3O4+CuS+FeS+CuO+Cu+SiO2→Cu2SFeS2+2FeOSiO2+SO2↑
The Cu inside blowing slag, which is can be seen that, from reaction mechanism above directly reacts generation matte, the O inside the slag that blows
Oxidation copper concentrate is used directly to reduce the oxygen consumption needed for melting reaction to achieve the purpose that energy-saving.
According to the characteristic of different blowing slags, different materials can be added in blowing slag holding furnace to improve blowing slag
Physicochemical characteristics.For example, if blowing slag contains SiO2Height can be properly joined into the high copper-contained material of certain iron content；If
The slag Armco magnetic iron that blows is excessively high, causes the poor fluidity of slag, can be suitably added certain reducing agent or Sulfide Cu concentrate, with also
Armco magnetic iron in original blowing slag, in short, can be taken several steps come operation adjustment according to actual conditions, so that the smelting of smelting furnace
Training of qi atmosphere is more preferable, reduces the cost needed for ton Copper fabrication.
To realize the utility model aim, a kind of hot operation side that copper smelter system is added of copper converting slag is provided
Method, it is characterised in that include the following steps：
A. copper converting slag is transported:The blowing slag of copper converting stove is put into cinder ladle, cinder ladle, mobile driving are sling using driving
Blowing slag is poured into blowing slag holding furnace；
B. blowing slag heat preservation buffering:Blowing slag is poured into blowing slag holding furnace, the temperature control requirement of holding furnace meets slag
More than fusing point, operation temperature is higher than more than slag melting point 80 DEG C, to ensure the mobility of blowing slag；
C. blowing slag is drained into smelting furnace from blowing slag holding furnace：Slag flow straightener discharge blowing slag is operated, according to melting
The delivery flow size of the molten bath face variation adjustment blowing slag of stove, generally requires the pool depth surge requirements of smelting furnace to control
± 100mm or so, to ensure that the molten bath of smelting furnace is stablized；
D. blowing slag dilution.
Blow Copper in Slag 1.5 ~ 25%, iron content 35 ~ 55%, after smelting furnace dilution copper directly become cupric 45% with
On matte, Copper in Slag is 0.5% or so, and the copper direct yield for the slag that blows is 99% or more.
The utility model advantageous effect：A, the heat inside blowing slag is fully utilized, and reduces the energy of processing blowing slag
Consumption；
B, the hyperoxia gesture to blow in slag is fully used, and hyperoxia gesture is needed to contain to handle copper concentrate etc. in smelting furnace
Copper material, and the oxygen needed for the hyperoxia gesture supplement melting inside the slag that blows, weight is played to the supplies consumption and energy consumption that reduce melting
The effect wanted；
C, the direct yield for improving copper sinks since the oxygen gesture in blowing slag is not directed in waste supernatant chamber furnaced
The magnetic iron content dropped inside electric furnace is low, and the viscosity of slag reduces, and copper and slag can detach, contain to reduce waste well
Copper.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Embodiment 1：A kind of hot addition copper smelter system of copper converting slag, including copper converting stove 1, copper smelter 7, copper are molten
Furnace 7 is the upstream workshop section of copper converting stove 1, and the entry level of copper smelter 1 is higher than the slagging height of copper converting stove 1, copper weld pool
The Upstream section of stove 1 is provided with blowing slag holding furnace 4, and the outlet of blowing slag holding furnace 4 is located at 1 top of copper converting stove, copper converting
1 side of stove is provided with cinder ladle 2, and cinder ladle 2 is round-trip by 3 handlings of driving a vehicle, and blowing slag is poured into blowing slag holding furnace 4.Copper smelter 7
For bath smelting furnace.Bath smelting furnace is oxygen enriched molten bath melting.The outlet of blowing slag holding furnace 4 is provided with slag flow straightener 5.It blows
It is provided with chute 6 between 4 outlet of refining slag holding furnace and copper smelter 7.Slag flow straightener 5 is to be set to blowing slag holding furnace 4
Liner graphite bushing Copper Water Jacket discharge port in outlet, the interior setting carbon stick of graphite bushing discharge port adjust the big of discharge port
It is small.
It produces 50000 tons of Copper making technological process per year with one below and describes the utility model technique.Copper concentrate passes through belt
Dispensing is added to side blowing smelting furnace, the discard slag with copper of smelting furnace output be containing Cu50%, matte by chute continuously
Converting furnace is flowed to blow.Converting furnace selects top and bottom complex blowing stove to carry out continuous converting, the blister copper of output Cu98% or more and contains
The blowing slag of Cu12% or so.Blowing slag is put into a 5m3Cinder ladle be transported through, often pile a packet blowing slag, then use in addition
One cinder ladle continues to blowing slag.Blowing cinder ladle after filling is by 50 tons of cranes the handling of blowing slag to one 35 square metres
Electric mantle heater, blowing slag electric mantle heater transformer efficiency is 2000KVA, and secondary voltage is in 24V or so, point 7 voltage class.
Slag blow during returning into electric mantle heater, adjusts the insertion depth of electrode, prevents the fusing of electrode high temperature and electric pole short circuit.It adjusts
The watt level of whole electric furnace makes the temperature of blowing slag at 1250 DEG C or more, ensures the mobility of blowing slag.Open blowing slag heat preservation
The discharge port of stove adjusts the emission flow of blowing slag by slag flow straightener, it is desirable that control the molten bath surface wave of side blowing smelting furnace
It moves within ± 100mm.If the slag flow that blows is excessive, the section of floss hole is reduced by carbon stick, to control blowing slag
Emission flow.Blowing slag is continuously added in side blowing smelting furnace by chute, in containing for smelting furnace blowing slag
Cu12% directly smelts the matte at cupric 50%, the Fe in the slag that blows3O4It is reacted with copper concentrate, the oxygen gesture in blowing slag is made to participate in
Reaction generates FeO, directly generates smelting slag, takes full advantage of the oxygen in slag, reduces the oxygen amount needed for melting.The slag that blows contains Cu
The waste of the matte and cupric 0.5% of cupric 50% is obtained after smelting furnace dilution from 12%, the matte containing Cu50% enters again
Converting furnace is blown to obtain blister copper, is arranged outside the waste direct-water-quenching of cupric 0.5%.The return period of blowing slag greatly shortens, and fills
Divide the heat and oxygen gesture that blowing slag is utilized, reduces energy consumption, improve production efficiency.
Claims (6)
1. a kind of hot addition copper smelter system of copper converting slag, including copper converting stove, copper smelter, copper smelter are copper converting
The upstream workshop section of stove, the entry level of copper smelter are higher than the slagging height of copper converting stove, it is characterised in that copper smelter it is upper
Trip section is provided with blowing slag holding furnace, and the outlet of blowing slag holding furnace is located above copper converting stove, the setting of copper converting stove side
There are cinder ladle, cinder ladle to transport to and return by traveling crane, blowing slag is poured into blowing slag holding furnace.
2. the hot addition copper smelter system of a kind of copper converting slag according to claim 1, it is characterised in that copper smelter
For bath smelting furnace.
3. the hot addition copper smelter system of a kind of copper converting slag according to claim 2, it is characterised in that bath smelting
Stove is oxygen enriched molten bath melting.
4. the hot addition copper smelter system of a kind of copper converting slag according to claim 1, it is characterised in that blowing slag is protected
The outlet of warm stove is provided with slag flow straightener.
5. the hot addition copper smelter system of a kind of copper converting slag according to claim 1, it is characterised in that blowing slag is protected
It is provided with chute between warm fire grate outlet and copper smelter.
6. the hot addition copper smelter system of a kind of copper converting slag according to claim 4, it is characterised in that slag flow straightener
For the liner graphite bushing Copper Water Jacket discharge port being set in the outlet of blowing slag holding furnace, the interior setting of graphite bushing discharge port
Carbon stick adjusts the size of discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223259.6U CN207877834U (en) | 2018-02-08 | 2018-02-08 | A kind of hot addition copper smelter system of copper converting slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223259.6U CN207877834U (en) | 2018-02-08 | 2018-02-08 | A kind of hot addition copper smelter system of copper converting slag |
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| Publication Number | Publication Date |
|---|---|
| CN207877834U true CN207877834U (en) | 2018-09-18 |
Family
ID=63510610
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| CN201820223259.6U Expired - Fee Related CN207877834U (en) | 2018-02-08 | 2018-02-08 | A kind of hot addition copper smelter system of copper converting slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193057A (en) * | 2018-02-08 | 2018-06-22 | 宜兴曜源科技发展有限公司 | A kind of copper converting slag is hot to add in copper smelter system and its operating method |
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2018
- 2018-02-08 CN CN201820223259.6U patent/CN207877834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193057A (en) * | 2018-02-08 | 2018-06-22 | 宜兴曜源科技发展有限公司 | A kind of copper converting slag is hot to add in copper smelter system and its operating method |
| CN108193057B (en) * | 2018-02-08 | 2023-09-12 | 宜兴曜源科技发展有限公司 | Copper smelting furnace system for adding copper converting slag in hot state and operation method thereof |
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Granted publication date: 20180918 |