CN107746974A - Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels - Google Patents
Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels Download PDFInfo
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- CN107746974A CN107746974A CN201711153888.2A CN201711153888A CN107746974A CN 107746974 A CN107746974 A CN 107746974A CN 201711153888 A CN201711153888 A CN 201711153888A CN 107746974 A CN107746974 A CN 107746974A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003034 coal gas Substances 0.000 title claims abstract description 25
- 238000003723 Smelting Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000003595 mist Substances 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000863 Ferronickel Inorganic materials 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 20
- 238000001179 sorption measurement Methods 0.000 claims description 19
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 12
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WJEIYVAPNMUNIU-UHFFFAOYSA-N [Na].OC(O)=O Chemical compound [Na].OC(O)=O WJEIYVAPNMUNIU-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000000610 breath-figure templating Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses electric furnace coal-gas recovering in a kind of RKEF methods smelting ferronickel to utilize device, and it includes electric furnace；Electric furnace is interconnected with clarifier；The top of clarifier connects with hot-blast stove；Coal gas escape pipe is provided with isocon；Isocon connects with Water seal of preventing flashback tank；Water seal of preventing flashback tank is provided with nitrogen inlet, water inlet pipe and blow-off pipe；The top of Water seal of preventing flashback tank connects with water filter tank；The internal perisporium of water filter tank is provided with water mist sprinkling pipe I；The periphery wall at ttom of pipe of collaborating end is provided with water mist sprinkling pipe II；Water mist sprinkling pipe I, II arranges in alternating expression；The top of water filter tank is provided with net gas outlet pipe, and net gas outlet pipe connects with burner nozzle.Coal gas is shunted by isocon, then enters burner nozzle by Water seal of preventing flashback tank and water filter tank, so as to the combustion reaction into rotary kiln；Whole process can make full use of Gas Resource, reduce and waste, and save considerable cost, and the flue gas after purification meets discharge standard, environmentally safe.
Description
Technical field
The invention belongs to gas cleaning device technical field, and in particular to a kind of ore-smelting electric furnace coal using RKEF method smelting ferronickels
Gas purification recovery device.
Background technology
At present, as long as the processing method of domestic and international lateritic nickel ore has two kinds of smelting processes of pyrogenic process and wet method, wherein thermal process master
There are four kinds：Sintering-blast furnace process（BF methods）, rotary kiln-electro-smelting flow（RKEF methods）；Dominica Ying Qiao shaft furnaces-electricity
Furnace technology；Japanese big rivers and mountains rotary kiln for directly reducing method.Wherein, RKEF methods be the advanced of current pyrogenic attack lateritic nickel ore and into
Ripe technique, is widely used.
During using RKEF methods production ferronickel, the coal gas containing flue dust of semi-closed electric stove output drops through gravity
Dirt, cool, be sent directly into after the purified treatment such as bag-type dust by pipeline in hot-blast stove, containing after temperature regulating for drying
The lateritic nickel ore of free water 34% or so, free water management is carried out dispensing in 20-25% or so and carried out in advance also to enter rotary kiln
Coal gas can be only used for drying material by original roasting, such a mode, and when hot-blast stove stove calorific value dosage is few, the demand of coal gas has
Limit, substantial amounts of coal gas are only handled by diffusing row outside flue, had not only wasted the energy but also polluted air.
Sulfur dioxide and nitrogen oxides in flue gas have very high solubility in water, therefore, net by spray column
Flue gas after change can qualified discharge, but only by Water spray effect and bad, prior art improves spray using alkali lye more
Leaching adsorption efficiency, but the too high easy etching apparatus of concentration of lye, and pollution is produced to the external world, how spray adsorption liquid is entered
Row improves, and lowers usage amount and raising adsorption efficiency is particularly important.
The content of the invention
Present invention aim to address prior art exist energy waste seriously and heavy-polluted technical problem, there is provided a kind of RKEF
Electric furnace coal-gas recovering utilizes device in method smelting ferronickel, carrys out overcome the deficiencies in the prior art.
The present invention is achieved by the following technical solution：
Electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel of the present invention, and it includes electric furnace；The electric furnace passes through pipe
Road is interconnected with clarifier；The top of the clarifier is interconnected by fresh-air duct and air-introduced machine, and air-introduced machine passes through coal
Gas escape pipe is interconnected with hot-blast stove；
Its main points is that the coal gas escape pipe is provided with the isocon interconnected with it；The isocon and Water seal of preventing flashback tank
It is interconnected, and the bottom of isocon is corresponding with the bottom of Water seal of preventing flashback tank；The Water seal of preventing flashback tank enters provided with nitrogen
Pipe, water inlet pipe and blow-off pipe；The top of the Water seal of preventing flashback tank is interconnected by Guan Yushui filter tanks of collaborating；
The internal perisporium of the water filter tank is uniformly provided with some water mist sprinkling pipes I；The periphery wall for collaborating ttom of pipe end is uniformly provided with
Some water mist sprinkling pipes II；The water mist sprinkling pipe I and water mist sprinkling pipe II mutually arrange in alternating expression, are adsorbed for spraying
Liquid；The top of the water filter tank is provided with net gas outlet pipe, and net gas outlet pipe is mutual by net gas jets after-poppet and burner nozzle
Connection.
In order to keep level balance, it is interconnected between the Water seal of preventing flashback tank and water filter tank by series-flow pipe.
For the ease of observing liquid level, the side of the water filter tank is provided with magnetic float liquidlevel meter.
The invention further relates to the improvement to above-mentioned adsorption liquid, specifically,
The adsorption liquid is prepared according to following technique：
Sodium carbonate, 4 bromide are added in deionized water, stirring and dissolving, then add manganese dioxide, is stirred at 80 DEG C
Backflow 90min is mixed, obtains adsorption liquid；
The sodium carbonate, 4 bromide, the mass ratio of deionized water and manganese dioxide are 20:8:200:1.
The beneficial effect that the present invention obtains mainly includes but is not limited to the following aspects：
The present invention is rational in infrastructure, novel in design, and coal gas is shunted by isocon, then passes through Water seal of preventing flashback tank and water filter tank
Into burner nozzle, so as to the combustion reaction into rotary kiln；Whole process can make full use of Gas Resource, reduce and waste, section
Considerable cost has been saved, and the flue gas after purification meets discharge standard, it is environmentally safe.The present invention solves existing skill
Art energy waste seriously and heavy-polluted technical problem.Adsorption liquid each component compatibility of the present invention is reasonable, and synergisticing performance is good, alkalinity
Few, pH is low, small to equipment corrosion, and has resistant to elevated temperatures characteristic and excellent desulfurization performance.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is use state diagram of the present invention；
Fig. 3 is Water seal of preventing flashback tank and water filter tank connection status schematic front view in the present invention；
Fig. 4 is Water seal of preventing flashback tank and water filter tank connection status schematic top plan view in the present invention.
1, isocon 2 in figure, Water seal of preventing flashback tank 3, water filter tank 4, net gas jets after-poppet 5, burner nozzle 6,
Rotary kiln 7, clarifier 8, fresh-air duct 9, electric furnace 10, nitrogen inlet 11, water inlet pipe 12, blow-off pipe 13, series-flow pipe 14,
Magnetic float liquidlevel meter 15, overfall 16, water mist sprinkling pipe II 17, water mist sprinkling pipe I 18, pipe 19 of collaborating, net gas outlet pipe.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is specifically real below in conjunction with the application
Example is applied, the present invention is more clearly and completely described, it is clear that described embodiment is only that the application part is real
Apply example, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, should all belong to the scope of protection of the invention.
Embodiment 1
Reference picture 1 and Fig. 4, the present invention it include electric furnace 9；The electric furnace 9 is interconnected by pipeline and clarifier 7；It is described net
The top for changing device 7 is interconnected by fresh-air duct 8 with air-introduced machine, and air-introduced machine is mutually interconnected by coal gas escape pipe with hot-blast stove
It is logical；
The coal gas escape pipe is provided with the isocon 1 interconnected with it；The isocon 1 and Water seal of preventing flashback tank 2 are mutual
Connection, and the bottom of isocon 1 is corresponding with the bottom of Water seal of preventing flashback tank 2；The Water seal of preventing flashback tank 2 is provided with nitrogen inlet
10th, water inlet pipe 11 and blow-off pipe 12；The top of the Water seal of preventing flashback tank 2 is interconnected by pipe 18 of collaborating with water filter tank 3；
The internal perisporium of the water filter tank 3 is uniformly provided with some water mist sprinkling pipes I 17；The periphery wall of the bottom of pipe 18 of collaborating is uniform
Provided with some water mist sprinkling pipes II 16；The water mist sprinkling pipe I 17 and water mist sprinkling pipe II 16 mutually arrange in alternating expression, are used for
Spray adsorption liquid；The top of the water filter tank 3 is provided with net gas outlet pipe 19, and net gas outlet pipe 19 by net gas jets after-poppet 4 with
Burner nozzle 5 is interconnected.
In order to keep level balance, it is interconnected between the Water seal of preventing flashback tank 2 and water filter tank 3 by series-flow pipe 13.
For the ease of observing liquid level, the side of the water filter tank 3 is provided with magnetic float liquidlevel meter 14.
Operation principle：Flue gas caused by electric furnace 9 first passes around enters anti-backfire after the purification of clarifier 7 by isocon 1
Water sealed tank 2, under liquid level, this step can utilize the principle of water seal to prevent to be tempered for the bottom of isocon 1；Flue gas rises through
Pipe 18 of collaborating enters in water filter tank 3, after water mist sprinkling pipe I 17 and the alternating expression of water mist sprinkling pipe II 16 spray adsorption liquid, only
Gas after change rises again, is connected by net gas outlet pipe 19 with burner nozzle 5, the finally combustion reaction in rotary kiln.This hair
It is bright that part coal gas is branched into rotary kiln, the energy can be made full use of, is avoided waste, the production cost of enterprise substantially reduces, together
When can also significantly reduce pollution to environment.
The present invention is by the average producing coal gas of mineral hot furnace：3500Nm3/h, CO content 30-65%, calorific value 1200-1400kcal/
Nm3, Ya Li≤5KPa, calculate：3500Nm3/h1300kcal/Nm3,=4550000kcal/h；Natural gas is saved per hour：（Heat
Value：8000kcal/Nm3）4550000kcal/h÷8000kcal/Nm3=568.75Nm3；That is 568.75Nm3/h × 24h=
13650Nm3/ days, it is very notable up to 13650Nm3/ days, economic benefit to save natural gas.
Embodiment 2
A kind of adsorption liquid, it is prepared according to following technique：
Sodium carbonate, 4 bromide are added in deionized water, stirring and dissolving, then add manganese dioxide, is stirred at 80 DEG C
Backflow 90min is mixed, obtains adsorption liquid；The sodium carbonate, 4 bromide, the mass ratio of deionized water and manganese dioxide are
20:8:200:1。
The performance parameter detection of above-mentioned adsorption liquid：
Control group is set, wherein, control group 1：Water；Control group 2：10wt% sodium hydrate aqueous solutions；Control group 3：15wt% carbonic acid
Sodium water solution.
Selection simulation gas, NOx concentration 170mg/Nm therein3, SO2Concentration be 300mg/Nm3, the concentration of flue dust is
80mg/Nm3, handled by spray process, fountain height is 1L adsorption liquids/Nm3Flue gas, processing time 10min, testing result are shown in
Table 1：
Table 1
| Group | NOx mg/Nm3 | SO2 mg/Nm3 | Flue dust mg/Nm3 |
| Control group 1 | 46.3 | 58.9 | 9.7 |
| Control group 2 | 21.2 | 30.5 | 8.9 |
| Control group 3 | 24.8 | 29.1 | 9.3 |
| The present invention | 12.9 | 8.6 | 4.0 |
Conclusion：Compared with conventional use of water or alkali lye, adsorption liquid of the present invention being capable of more effectively NOx adsorption, SO2And cigarette
Dirt, prompt, each component compatibility is reasonable in adsorption liquid of the present invention, and synergisticing performance is good.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that combining specific features, structure, material or feature that the embodiment or example describe includes
In at least one embodiment or example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referred to
Be identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be at any one
Or combined in an appropriate manner in multiple embodiments or example.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (5)
1. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel, it includes electric furnace（9）；The electric furnace（9）Pass through
Pipeline and clarifier（7）It is interconnected；The clarifier（7）Top pass through fresh-air duct（8）It is interconnected, and draws with air-introduced machine
Blower fan is interconnected by coal gas escape pipe with hot-blast stove；
It is characterized in that：The coal gas escape pipe is provided with the isocon interconnected with it（1）；The isocon（1）With preventing back
Fiery water sealed tank（2）It is interconnected, and isocon（1）Bottom and Water seal of preventing flashback tank（2）Bottom it is corresponding；The anti-backfire water
Sealed cans（2）It is provided with nitrogen inlet（10）, water inlet pipe（11）And blow-off pipe（12）；The Water seal of preventing flashback tank（2）Top lead to
Cross pipe of collaborating（18）With water filter tank（3）It is interconnected；
The water filter tank（3）Internal perisporium be uniformly provided with some water mist sprinkling pipes I（17）；The pipe of collaborating（18）The periphery of bottom
Wall is uniformly provided with some water mist sprinkling pipes II（16）；The water mist sprinkling pipe I（17）With water mist sprinkling pipe II（16）Mutually submission
Wrong formula arrangement, for spraying adsorption liquid；The water filter tank（3）Top be provided with net gas outlet pipe（19）, and net gas outlet pipe（19）It is logical
Cross net gas jets after-poppet（4）With burner nozzle（5）It is interconnected.
2. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 1, it is characterized in that, institute
State Water seal of preventing flashback tank（2）With water filter tank（3）Between pass through series-flow pipe（13）It is interconnected.
3. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 1, it is characterized in that, institute
State water filter tank（3）Side be provided with magnetic float liquidlevel meter（14）.
4. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 1, it is characterized in that, institute
Adsorption liquid is stated to be prepared according to following technique：
Sodium carbonate, 4 bromide are added in deionized water, stirring and dissolving, then add manganese dioxide, is stirred at 80 DEG C
Backflow 90min is mixed, obtains adsorption liquid.
5. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 4, it is characterized in that, institute
The mass ratio for stating sodium carbonate, 4 bromide, deionized water and manganese dioxide is 20:8:200:1.
Priority Applications (1)
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| CN201711153888.2A CN107746974A (en) | 2017-11-20 | 2017-11-20 | Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels |
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| CN201711153888.2A CN107746974A (en) | 2017-11-20 | 2017-11-20 | Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels |
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| CN102220443A (en) * | 2011-06-09 | 2011-10-19 | 马鞍山钢铁股份有限公司 | Device and method for top gas enrichment utilization of blast furnace |
| CN102620571A (en) * | 2012-04-10 | 2012-08-01 | 上海瑞恩能源投资有限公司 | Waste-heat power generating system in smelting process of rotary kiln and ore-smelting electric furnace |
| CN202692720U (en) * | 2012-04-10 | 2013-01-23 | 上海瑞恩能源投资有限公司 | Waste heat power generation system for rotary kiln-ore-smelting electric furnace smelting technology |
| CN103602813A (en) * | 2013-11-29 | 2014-02-26 | 四川省冶金设计研究院 | Elevated short-process energy-saving novel RKEF (Rotary Kiln Electric Furnace) ferro-nickel alloy production process and equipment |
| CN104131127A (en) * | 2014-07-28 | 2014-11-05 | 四川金广实业（集团）股份有限公司 | RKEF process nickel-iron smelting waste heat utilizing method |
| CN204058401U (en) * | 2014-07-29 | 2014-12-31 | 云南煤业能源股份有限公司 | A kind of coal gas AS process tail gas washing purifying device |
| CN204281411U (en) * | 2014-12-04 | 2015-04-22 | 九江力山环保科技有限公司 | A kind of sewage disposal IC reactor generation biogas that utilizes carries out the device generated electricity |
| CN105524664A (en) * | 2015-12-23 | 2016-04-27 | 四川中航超高分子量管业有限公司 | Desulfurization purification system of coke oven gas |
| CN207703011U (en) * | 2017-11-20 | 2018-08-07 | 临沂鑫海新型材料有限公司 | Utilize the ore-smelting electric furnace gas purification retracting device of RKEF method smelting ferronickels |
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