CN202187045U - Fluidized bed furnace device for roasting nickel molybdenum concentrate - Google Patents
Fluidized bed furnace device for roasting nickel molybdenum concentrate Download PDFInfo
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- CN202187045U CN202187045U CN2011202692973U CN201120269297U CN202187045U CN 202187045 U CN202187045 U CN 202187045U CN 2011202692973 U CN2011202692973 U CN 2011202692973U CN 201120269297 U CN201120269297 U CN 201120269297U CN 202187045 U CN202187045 U CN 202187045U
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- nickel
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- molybdenum
- roasting
- molybdenum concentrate
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Abstract
The utility model discloses a fluidized bed furnace device for roasting nickel molybdenum concentrate, and a method for roasting the nickel molybdenum concentrate. The device comprises a feeder, a fluidized bed furnace body, a dust removing device, a condensing device, an organic amine and sulfur dioxide absorption device, a water area heating device and a contact acid making device all sequentially connected via a pipeline. The technical effect is that: nickel molybdenum concentrate is obtained via process and flotation, and the nickel molybdenum slag with the nickel molybdenum grade being improved to about 45% can be obtained; for the smelting, the leaching cost is greatly reduced and the treatment amount is increased; the problem that the content of organic carbon nickel molybdenum concentrate in black rock series is high is effectively solved; arsenicum in the nickel molybdenum concentrate is leached after being roasted, so that the harm brought by the arsenicum in the follow-up leaching process is solved; and sulfur is leached after being roasted can be directly made into sulfuric acid and serve as the main medicament leached from the nickel molybdenum slag.
Description
Technical field
The utility model relates to a kind of method that is used for the fluidizing furnace device and the roasting nickel concentrated molybdenum ore of nickel calcining molybdenum ore concentrate.
Background technology
The material that contains the black carbonaceous shale ore of molybdenum nickel is formed complicated, and it is various that variation of valence is deposited in the occurrence status of molybdenum and nickel and tax, disperses tricklely, in same ore body, has multiple molybdenum ore thing and nickel mineral usually.Molybdenum is composed mostly and is stored in the sulfide in the bone coal, and in the pyrite association, is mainly molybdenum glance (MoS
2) and sulphur iron molybdenum ore ((Mo, Fe)
xS
y), other has part mainly to form replacement Al with class matter homophase
3+, Fe
3+Deng entering mica mineral and silicic acid salt face, other then are present in the organic matter with the organic form.
Black yeath essence is a kind of complex multi-metal mineral that contain multiple metallic element, contains valuable metal elements such as vanadium, molybdenum, nickel, phosphorus, copper, sulphur, iron, uranium.The black yeath is created in the ancient stratum such as shake is adopted at the dawn, cold open system, Silurian, under the reducing environment of shallow sea, is formed the flammable mineral products of high-quality degree by the fungus algae unicellular lower eukaryote.Contain a large amount of black yeaths that contains molybdenum nickel on the western Hunan, China Hunan Province and other places.The black yeath that contains molybdenum nickel is a molybdenum nickel mineral resource, thereby the yeath that contains molybdenum nickel also just becomes the important mineral wealth that extract molybdenum nickel.
The utility model patent of the patent No. 99114737.5 " extracts the method for molybdenum and nickel salt " from molybdenum-nickel paragenetic raw ore with diluted acid a kind of hydrometallurgy field described with diluted acid and oxygenant molybdenum-nickel paragenetic raw ore is directly leached the process method of nickel molybdenum salt, comprise nickel molybdenum paragenetic raw ore fragmentation ball milling, acidleach, filtration, extraction, reextraction and evaporation concentration etc.Be characterized in: raw ore, without roasting but separates molybdenum-nickel paragenetic raw ore through behind the ball milling.Be specially a kind of process method that molybdenum-nickel paragenetic raw ore is directly leached the molybdenum nickel salt with diluted acid and oxygenant; With the broken ball milling of molybdenum-nickel paragenetic raw ore process; Obtain ammonium molybdate with diluted acid and oxygenant leaching, filtration, filtrating extraction and reextraction then; Extraction liquid is obtaining single nickel salt through extraction and reextraction, and raffinate obtains the sub product ferric ammonium sulfate through evaporation concentration.The patent No. is that 97107568.9 utility model patent " yellow soda ash conversion processing separation molybdenum and nickel from black shale technology " provides a kind of technology with yellow soda ash conversion processing separation molybdenum and nickel from black shale, it is through desulphurizing roasting, size mixing, transform, dissolve soak, purifying treatment and getting.Be characterized in: with black shale desulphurizing roasting and pulverizing, the yellow soda ash of adding 50% and 30% water are sized mixing, then through pyrolytic conversion earlier; Add water 100% molten soaking again; With clear water wash immersion liquid, the immersion liquid tailings gets nickel ore concentrate, again the immersion liquid dephosphorization is purified, filters; Get clean liquid, handle promptly getting the calcium molybdate product salt through heavy molybdenum.
Above-mentioned treatment process to the molybdenum-nickel paragenetic ore deposit all comprises oxidizing roasting or with the salt roasting process, produces SO and understand in the roasting process
2, because SO
2Environmental pollution serious, a large amount of flue gas serious environment pollutions that produce in the roasting process.Gu its roasting reaction of salt-roast-process simultaneously is on solid-surface chemical reaction to take place basically; And contain the low iron content sulfur content of molybdenum nickel amount in the black yeath of molybdenum nickel high (molybdenum content is 2～6%, nickel content 2.5～3% owing to contain; About iron 15%, sulphur about 20%), the addition of salt is limited; Because the behavior of molybdenum nickel mineral is complicated, this has just fundamentally limited the speed of response and the transformation efficiency of molybdenum nickel mineral simultaneously; Method with direct leaching, it is low that it leaches transformation efficiency, and system is complicated.Thereby the deficiency that aforesaid method exists is that technical matters is complicated, and metal recovery rate is low, and valuable metal disperses, and reagent consumption is big, and cost is high, of poor benefits, is difficult to overcome the complicacy of mineral, molybdenum nickel separation difficulty in the mineral, and environmental pollution is serious.
The utility model content
In the process that overcomes existing processing molybdenum-nickel paragenetic ore deposit, can produce a large amount of SO
2And contaminate environment, and technical matters is complicated, and metal recovery rate is low; Valuable metal disperses; Reagent consumption is big, and cost is high, of poor benefits, is difficult to overcome the complicacy of mineral; The technical problem of molybdenum nickel separation difficulty in the mineral, the utility model provide a kind of method of polluting the fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate and the roasting nickel concentrated molybdenum ore of little and conservation.
In order to realize above-mentioned technical purpose, the technical scheme of the utility model is: a kind of fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate comprises that material feeder, boiling body of heater, cleaning apparatus, organic amine absorb SO
2Device, the waters heating unit with contact sulphuric acid plant, described material feeder, body of heater, cleaning apparatus, organic amine absorption SO
2Device, the waters heating unit with contact sulphuric acid plant and pass through pipe connection successively.
Described a kind of fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate also comprises condensing works, and the input terminus of described condensing works is connected to the output terminal of cleaning apparatus, and the output terminal of condensing works is connected to organic amine and absorbs SO
2The input terminus of device.
Described a kind of fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate, described material feeder is provided with the filler pipe road.
A kind of method that adopts above-mentioned fluidizing furnace device to burn the nickel concentrated molybdenum ore; The nickel concentrated molybdenum ore that at first flotation is obtained evenly sprays from furnace roof through material feeder and gets in the boiling body of heater; And Boiling Combustion in fluidizing furnace, fully react generation sulfurous gas and arsenic oxide arsenoxide with airborne oxygen; The furnace gas that contains sulfurous gas and arsenic oxide arsenoxide carries out udst separation through cleaning apparatus; Utilize condensing works to make the arsenic oxide arsenoxide condensation then and reclaim arsenic oxide arsenoxide; Remaining flue gas charges into organic amine solution and carries out absorbing enriched, and the heating unit heating is carried out desorb and improved SO through the waters then
2Concentration; SO after the desorb
2Produce sulfuric acid through the contact sulphuric acid plant with the contact process acid-making process.
The method of described a kind of fluidizing furnace device roasting nickel concentrated molybdenum ore, the nickel concentrated molybdenum ore in the material feeder need add water treatment before getting into the boiling body of heater, and the water cut that makes the nickel concentrated molybdenum ore is 8～9%.
The method of described a kind of fluidizing furnace device roasting nickel concentrated molybdenum ore, the furnace gas that roasting produces must be through purifying slagging-off, and the slag of generation returns former feed bin, recycles.
The method of described a kind of fluidizing furnace device roasting nickel concentrated molybdenum ore is describedly utilized condensing works to make the arsenic oxide arsenoxide condensation and is reclaimed in the process of arsenic oxide arsenoxide, and temperature is controlled at 350-450 ℃.
The method of described a kind of fluidizing furnace device roasting nickel concentrated molybdenum ore, described through the waters heating unit heating carry out desorb and improve SO
2In the process of concentration, temperature is controlled at 80～90 ℃, resolves back SO
2Concentration be 10～14%.
The technical superiority of the utility model is, the nickel concentrated molybdenum ore that treated flotation obtains can obtain nickel molybdenum grade and improve about 45% nickel molybdenum slag; For smelting, greatly reduced the leaching cost and increased treatment capacity; Efficiently solve the high problem of organic carbon content in the black series of rocks nickel concentrated molybdenum ore; Deviate from the arsenic in the nickel concentrated molybdenum ore after the roasting, solved the harm that arsenic brings in the follow-up leaching process; The sulphur that roasting is deviate from is directly processed sulfuric acid, becomes the main medicament that nickel molybdenum slag leaches.In a word; This art breading nickel concentrated molybdenum ore; Carbon in the roasting process in the nickel concentrated molybdenum ore can be used as fuel, need not add fuel, and the arsenic oxide arsenoxide of condensation output can be used as sub product; System sulfuric acid be used for the leaching of roasting nickel molybdenum slag, open the method utilization for China's black series of rocks nickel-molybdenum ore resource new way be provided.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model fluidizing furnace device;
Wherein 1 is material feeder, and 2 are the boiling body of heater, and 3 is cleaning apparatus, and 4 is condensing works, and 5 are organic amine absorption SO
2Device, 6 is the waters heating unit, 7 are the contact sulphuric acid plant.
Embodiment
Referring to Fig. 1, the fluidizing furnace device of the utility model comprises successively absorbing SO through the material feeder 1 of pipe connection, the body of heater 2 that seethes with excitement, cleaning apparatus 3, condensing works 4, organic amine
2The device 5, waters heating unit 6 with contact sulphuric acid plant 7.Material feeder 1 is provided with the filler pipe road, with the material water cut that guarantee to add 8～9%; According to the size of feeding, condensing works 4 is wanted sufficiently long, guarantees arsenic oxide arsenoxide (As
2O
3) be eliminated totally.
A kind of method that adopts above-mentioned fluidizing furnace device to burn the nickel concentrated molybdenum ore; The nickel concentrated molybdenum ore that at first flotation is obtained evenly sprays from furnace roof through material feeder 1 and gets in the boiling body of heater 2; And Boiling Combustion in fluidizing furnace, fully react generation sulfurous gas and arsenic oxide arsenoxide (As with airborne oxygen
2O
3); The furnace gas that contains sulfurous gas and arsenic oxide arsenoxide carries out udst separation through cleaning apparatus 3, utilizes condensing works 4 to make the arsenic oxide arsenoxide condensation then and reclaims arsenic oxide arsenoxide, and remaining flue gas charges into organic amine solution and carries out SO
2Absorbing enriched, heating unit 6 heating are carried out desorb and are improved SO through the waters then
2Concentration; SO after the desorb
2Produce sulfuric acid through contact sulphuric acid plant 7 usefulness contact process acid-making process.Nickel concentrated molybdenum ore in the material feeder 1 need add water treatment before getting into boiling body of heater 2, the water cut that makes the nickel concentrated molybdenum ore is 8～9%.The furnace gas that roasting produces must be through purifying slagging-off, and the slag of generation returns former feed bin, recycles.Utilize condensing works 4 to make the arsenic oxide arsenoxide condensation and reclaim in the process of arsenic oxide arsenoxide, temperature is controlled at 350-450 ℃.Heating unit 6 heating are carried out desorb and are improved SO through the waters
2In the process of concentration, temperature is controlled at 80～90 ℃, SO after the desorb
2Concentration be 10～14%.
The nickel concentrated molybdenum ore that flotation obtains mixes through adding water, makes its water cut 8.5%, sprays to add boiling roaster, output nickel molybdenum slag.The flue gas slagging-off that roasting produces is after row condensation arsenic removal, and final sulfur dioxide gas body and function contact process is produced sulfuric acid.The sulfuric acid of producing is used for the acidleach of nickel molybdenum slag, output ammonium molybdate and single nickel salt.
Following examples are all operated according to the method described above, and the result is referring to table 1.
Embodiment 1: nickel molybdenum grade is respectively 4.5% and 11.0% in the nickel concentrated molybdenum ore;
Embodiment 2: nickel molybdenum grade is respectively 4.0% and 8.0% in the nickel concentrated molybdenum ore;
Embodiment 3: nickel molybdenum grade is respectively 0.8% and 1.2% in the nickel concentrated molybdenum ore.
Table 1
Claims (3)
1. a fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate is characterized in that, comprises that material feeder, boiling body of heater, cleaning apparatus, organic amine absorb SO
2Device, the waters heating unit with contact sulphuric acid plant, described material feeder, body of heater, cleaning apparatus, organic amine absorption SO
2Device, the waters heating unit with contact sulphuric acid plant and pass through pipe connection successively.
2. a kind of fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate according to claim 1 is characterized in that also comprise condensing works, the input terminus of described condensing works is connected to the output terminal of cleaning apparatus, and the output terminal of condensing works is connected to organic amine and absorbs SO
2The input terminus of device.
3. a kind of fluidizing furnace device that is used for the nickel calcining molybdenum ore concentrate according to claim 1 is characterized in that described material feeder is provided with the filler pipe road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202692973U CN202187045U (en) | 2011-07-27 | 2011-07-27 | Fluidized bed furnace device for roasting nickel molybdenum concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202692973U CN202187045U (en) | 2011-07-27 | 2011-07-27 | Fluidized bed furnace device for roasting nickel molybdenum concentrate |
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| CN202187045U true CN202187045U (en) | 2012-04-11 |
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|---|---|---|---|
| CN2011202692973U Expired - Lifetime CN202187045U (en) | 2011-07-27 | 2011-07-27 | Fluidized bed furnace device for roasting nickel molybdenum concentrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268538A (en) * | 2011-07-27 | 2011-12-07 | 中南大学 | Boiling furnace device used for roasting nickel-molybdenum concentrate and method for roasting nickel-molybdenum concentrate |
| CN110902656A (en) * | 2019-12-12 | 2020-03-24 | 南京乾盛化工科技有限公司 | Production method for preparing sulfuric acid from molybdenum concentrate |
-
2011
- 2011-07-27 CN CN2011202692973U patent/CN202187045U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268538A (en) * | 2011-07-27 | 2011-12-07 | 中南大学 | Boiling furnace device used for roasting nickel-molybdenum concentrate and method for roasting nickel-molybdenum concentrate |
| CN110902656A (en) * | 2019-12-12 | 2020-03-24 | 南京乾盛化工科技有限公司 | Production method for preparing sulfuric acid from molybdenum concentrate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |