CN106906356B - A kind of processing unit and processing method of vanadium titano-magnetite - Google Patents
A kind of processing unit and processing method of vanadium titano-magnetite Download PDFInfo
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- CN106906356B CN106906356B CN201710162173.7A CN201710162173A CN106906356B CN 106906356 B CN106906356 B CN 106906356B CN 201710162173 A CN201710162173 A CN 201710162173A CN 106906356 B CN106906356 B CN 106906356B
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- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
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- 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
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
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- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
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Abstract
The present invention provides a kind of processing units of vanadium titano-magnetite, including：Furnace body, temperature controlling instruments and air intake apparatus；By sealing cover, heat insulation layer, the furnace wall being arranged outside heat insulation layer is formed the furnace body；The enclosure space that the sealing cover and heat insulation layer are formed is furnace chamber；Temperature measuring equipment and heating equipment are provided in the furnace chamber, temperature controlling instruments controls heating equipment according to the output temperature of temperature measuring equipment；Crucible is provided in the middle part of the furnace chamber, the crucible bottom carries multiple stomatas；The air intake apparatus delivers the gas at crucible bottom stomata；Exhaust equipment is provided on the sealing cover, the gas in furnace chamber is discharged by exhaust equipment.Compared with prior art, using device provided by the invention can direct solid state reduction vanadium titano-magnetite, and the processing unit of vanadium titano-magnetite provided by the invention is good to the reduction effect of vanadium titano-magnetite, carbonation rate is high, can efficiently use vanadium titano-magnetite.
Description
Technical field
The present invention relates to metallurgical technology field more particularly to the processing units and processing method of a kind of vanadium titano-magnetite.
Background technology
Vanadium titano-magnetite is a kind of grandidierite of a variety of valuable element symbiosis such as iron, vanadium, titanium, wherein vanadium has numerous excellent
Different physical property and chemical property, there is the title of metal " vitamin ", and application range is extremely wide, covers aerospace, changes
The various fields such as, battery, pigment, glass, optics, medicine.The chemical property of titanium is stablized, and has high temperature resistant, low temperature resistant, anti-strong
Sour, anti-highly basic and high intensity, the physicochemical properties of low-density can be melt into alloy with elements such as iron, aluminium, vanadium or molybdenums, produce
The light-alloy of high intensity, in multiple necks such as space flight, military affairs, chemical industry, automobile, Agrifood, medicine, kitchen utensils, sporting goods
Domain has a wide range of applications.China's Panxi Diqu is richly stored with v-ti magnetite ore resources, and about 10,000,000,000 tons of reserves is
China's maximum vanadic titanomagnetite deposit at present, great comprehensive utilization value.
V-ti magnetite green ore can get two kinds of products after ore dressing, first, v-ti magnetite concentrate, iron content is high, and (TFe contains
Amount 52%~53%), the relatively low (TiO of Ti content2Content 12%~13%)；First, ilmenite concentrate, iron content is relatively low, and (TFe contains
Amount 35%~36%), Ti content height (TiO2Content 47%~48%).
For the processing of v-ti magnetite concentrate, currently, blast furnace-converter flow is still main stream approach, but with the hair of society
Exhibition progress, this conventional method are also faced with the energy and environmental protection pressure growing day by day, especially become to the dependence of coking coal and restrict
Its bottleneck developed.What is more important, blast furnace-converter flow processing v-ti magnetite concentrate can only recycle iron and vanadium therein,
And titanium elements enter in blast furnace slag, due to the relatively low (TiO in blast furnace slag of titanium grade2Content be 22%~25%), at present still without
Effective ways are used, and cause the waste of valuable titanium resource.In addition, direct-reduction-electric furnace, which can also be used, melts division technique processing
Vanadium titano-magnetite, as New Zealand Steel Ltd., South Africa Granville Gang Fan companies are all made of molten point of rotary kiln for directly reducing-electric furnace
Process schreyerite, which, which can get vanadium-bearing hot metal and titanium-containing molten and separated slag, wherein vanadium, can pass through the oxygen blast into vanadium-bearing hot metal
The mode of extraction vanadium slag is recycled, and titanium enters melting slag, TiO in slag2Content is 30%~35%, although than in blast furnace slag
Ti content increased, but there are still titanium-containing molten and separated slags to utilize difficult technical barrier.Meanwhile there is also electric furnace smeltings for the technique
Process energy consumption height, less economical problem are refined, is limited by resource, the energy, it is difficult which promotes on a large scale.
For the processing of ilmenite concentrate, titanium dioxide can be produced directly as the raw material of sulfate process titanium dioxide, or first through electric furnace smelting
Refining production high titanium slag, the raw material that high titanium slag is re-used as the different process such as sulfuric acid process or chloridising use.Sulfuric acid process flow
Long, pollution is big, and product quality is not high, is being chlorinated method and is gradually replacing, and the chloridising production process three wastes are few, and environmental pollution obtains
Control, product quality is high, however, the technique must use the raw material of better quality, such as high titanium slag, rutile, therefore, titanium essence
Mine must obtain enrichment TiO through electric furnace smelting first2High titanium slag after could be connected chlorination process, technological process is relatively
Long, economy is deteriorated.
As can be seen that schreyerite resource picks up, treated that two big main bodys exist containing titanium products under the conditions of current technology
A degree of deficiency.Therefore, research and development new equipment promotes the added value of product and utilization rate of vanadium titano-magnetite, simplifies technique drop
Low energy consumption becomes the hot spot of those skilled in the art's research.
Invention content
In view of this, the purpose of the present invention is to provide a kind of processing unit of vanadium titano-magnetite and processing method, use
Processing unit provided by the invention can make vanadium titano-magnetite be used effectively.
The present invention provides a kind of processing units of vanadium titano-magnetite, including：Furnace body, temperature controlling instruments and air intake apparatus；
By sealing cover, heat insulation layer, the furnace wall being arranged outside heat insulation layer is formed the furnace body；
The enclosure space that the sealing cover and heat insulation layer are formed is furnace chamber；
Temperature measuring equipment and heating equipment are provided in the furnace chamber, temperature controlling instruments adds according to the output temperature pair of temperature measuring equipment
Hot equipment is controlled；
Crucible is provided in the middle part of the furnace chamber, the crucible bottom carries multiple stomatas；
The air intake apparatus delivers the gas at crucible bottom stomata；
Exhaust equipment is provided on the sealing cover, the gas in furnace chamber is discharged by exhaust equipment.
Preferably, the material of the heat insulation layer is refractory material.
Preferably, the furnace wall is water cooled furnace wall, is provided with cooling water inlet and cooling water outlet.
Preferably, the temperature measuring equipment is thermocouple, and the thermocouple is fixed on sealing cover, is arranged above crucible.
Preferably, the heating equipment is Si-Mo rod heating element or carbonaceous heating element.
Preferably, the crucible is graphite crucible.
Preferably, the air intake apparatus includes air source, gas distributing chamber and gas pipeline；
Air source conveys gas to gas distributing chamber；
It is delivered the gas at crucible bottom stomata by gas pipeline after the ingredient and flow of gas distributing chamber's adjustment gas.
The present invention provides a kind of processing method of vanadium titano-magnetite, using the processing equipment described in above-mentioned technical proposal into
Row processing, including：
Carbonaceous pelletizing is packed into crucible, temperature controlling instruments and air intake apparatus is opened, makes carbonaceous pelletizing in protective gas
Carry out reduction and carbonization；
The carbonaceous pelletizing is prepared by vanadium titano-magnetite, reducing agent and binder.
Preferably, the reducing agent is carbonaceous reproducibility material；The binder is bentonite.
Preferably, the temperature that the temperature controlling instruments control pelletizing carries out reduction and carbonization is 1250~1400 DEG C.
Compared with prior art, the present invention provides a kind of processing unit of vanadium titano-magnetite, use is provided by the invention
Device can direct solid state reduction vanadium titano-magnetite, equipment operation is simple, operating cost is low；And device earthenware provided by the invention
Crucible bottom is provided with stomata, and top is opening, and protective gas enters system from stomata, and the gap between material rises,
Since bottom is continually fed into gas, under the action of pressure difference, protective gas persistently rises, and from the exhaust equipment at the top of equipment
Discharge.The protective gas being continuously passed through can effectively prevent the infiltration of extraneous air, avoid oxygen enter system deterioration reduction,
The reaction condition of carbonization, meanwhile, effectively prevent the metallic iron generated, the carbide of titanium contacts to reoxidize with oxygen
The phenomenon that, ensure that product quality is unaffected in reaction process and after reaction in temperature-fall period.Therefore, the present invention provides
Vanadium titano-magnetite processing unit is good to the reduction effect of vanadium titano-magnetite, carbonation rate is high, v-ti magnetite can be efficiently used
Mine.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the processing device structure diagram of vanadium titano-magnetite provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of processing units of vanadium titano-magnetite, including：Furnace body, temperature controlling instruments and air intake apparatus；
By sealing cover, heat insulation layer, the furnace wall being arranged outside heat insulation layer is formed the furnace body；
The enclosure space that the sealing cover and heat insulation layer are formed is furnace chamber；
Temperature measuring equipment and heating equipment are provided in the furnace chamber, temperature controlling instruments adds according to the output temperature pair of temperature measuring equipment
Hot equipment is controlled；
Crucible is provided in the middle part of the furnace chamber, the crucible bottom carries multiple stomatas；
The air intake apparatus delivers the gas at crucible bottom stomata；
Exhaust equipment is provided on the sealing cover, the gas in furnace chamber is discharged by exhaust equipment.
The processing equipment of vanadium titano-magnetite provided by the invention includes furnace body, and the furnace body is by sealing cover, heat insulation layer
It is formed with furnace wall.In the present invention, the enclosure space that the sealing cover and heat insulation layer are formed is furnace chamber, and the present invention is to described
The shape and size of furnace chamber do not have special limitation, those skilled in the art that can select suitable dimension according to practical operation situation
The shape of furnace chamber, the heat insulation layer is the shape of furnace chamber, and the furnace chamber is preferably tubular.In the present invention, described close
Capping can be such that heat insulation layer seals, and the present invention does not have the shape and size of the sealing cover special limitation, described close
Capping can ensure that heat insulation layer seals, and the sealing cover is preferably circular, and the thickness of the sealing cover is preferably 10
~30mm, more preferably 15~25mm.In the present invention, the material of the sealing cover is preferably steel.In the present invention, described
It is preferably the bell with cavity prepared using steel that sealing cover, which preferably has water cooling function, the sealing cover, and cavity is used for
Logical cooling water.In the present invention, the material of the heat insulation layer is preferably refractory material, such as refractory brick, stamp mass and fiber
One or more of cotton.In the present invention, the thickness of the heat insulation layer is preferably 20~40mm, more preferably 25~
35mm。
In the present invention, the furnace wall is arranged in the outside of heat insulation layer, shape and ruler of the present invention to the furnace wall
Very little not special limitation, the furnace wall can be coated on heat insulation layer outside completely, and the shape of the furnace wall is preferred
It is consistent with the shape of heat insulation layer.In the present invention, the furnace wall is preferably water cooled furnace wall, is provided with cooling water inlet and cold
But water out.In the present invention, the structure of the water cooled furnace wall preferably includes between internal protecting wall and outer furnace wall and interior outer furnace wall
The cavity of formation, for the cavity for filling cooling water, the thickness of the cavity is preferably 30~50mm, more preferably 35~
45mm.The present invention does not have special limitation to the installation position of the cooling water inlet and cooling water outlet on water cooled furnace wall,
The cooling water inlet and cooling water outlet can be connected to the cavity for filling cooling water in water cooled furnace wall, the cooling water
Import is preferably provided at below water cooled furnace wall, and the cooling water outlet is preferably provided above water cooled furnace wall.In the present invention, institute
The material for stating furnace wall is preferably stainless steel.
In the present invention, the temperature controlling instruments is used to control the rate of heat addition, holding temperature, the soaking time etc. inside furnace chamber
Series of parameters, the present invention do not limit the temperature controlling instruments specifically, such as can be temperature control cabinet.In the present invention, described
Furnace chamber is internally provided with temperature measuring equipment and heating equipment, and the temperature measuring equipment is connect with heating equipment with temperature controlling instruments, and temperature control is set
It is standby that heating equipment is controlled by the output temperature of temperature measuring equipment, adjust the temperature parameter inside furnace chamber.
In the present invention, the temperature measuring equipment is preferably thermocouple, and the thermocouple is fixed on sealing cover, is preferably provided with
Above crucible, the distance between the thermocouple and crucible can be adjusted, and be preferably provided at 1~2cm above crucible.In this hair
In bright, the heating equipment is preferably Si-Mo rod heating element or carbonaceous heating element, and the heating equipment is preferably provided at earthenware
To be heated to crucible around crucible.
In the present invention, the crucible is arranged in the middle part of furnace chamber, is preferably fixed in the middle part of furnace chamber by liner plate.In the present invention
In, the crucible bottom carries multiple stomatas, and the crucible is preferably graphite crucible.Size and shape of the present invention to the crucible
Shape does not have special limitation, those skilled in the art to select suitable crucible according to practical operation.In the present invention, described
The preferably circular stomata of stomata of crucible bottom, the pore size are preferably 5~10mm, quantity of the present invention to the stomata
There is no special limitation, those skilled in the art that can be arranged according to practical operation, the stomata is evenly distributed on crucible bottom i.e.
It can.
In the present invention, the air intake apparatus preferably includes air source, gas distributing chamber and gas pipeline, and the air source is to provide gas
The equipment of body can be bottled gas；Air source conveys gas to gas distributing chamber, and gas distributing chamber adjusts the ingredient and flow of gas, passes through gas
Gas after body pipeline adjusts gas distributing chamber is delivered at crucible bottom stomata, and the gas distributing chamber preferably starts according to temperature control
Ventilation and end ventilation.The present invention does not have special limitation to the size and material of the gas pipeline, using art technology
Plastic pipe known to personnel.
In the present invention, exhaust equipment is provided on the sealing cover, the exhaust equipment is connected to furnace chamber and outside, will
Gas discharge in furnace chamber, the exhaust equipment is preferably gas vent, and it is special that the present invention does not have the size of the gas vent
Limitation, those skilled in the art can be configured according to practical operation situation..
Fig. 1 is the structural schematic diagram of vanadium titano-magnetite processing unit provided in an embodiment of the present invention, wherein 1 is temperature control cabinet,
2 be thermocouple, and 3 be sealing cover, and 4 be water outlet, and 5 be water inlet, and 6 be heat insulation layer, and 7 be heating component, and 8 is containing carbon balls
Group, 9 be crucible, and 10 be stomata, and 11 be gas pipeline, and 12 be distributing cabinet, and 13 be air source, and 14 be furnace body, and 15 be water cooled furnace wall, 16
It is gas vent for liner plate, 17.Furnace body (14) outermost layer is water cooled furnace wall (15), including water inlet (5) and water outlet (4), with water
Adjacent cooling furnace wall (15) is heat insulation layer (6), and heat insulation layer (6) is filled with fire resisting condiment, and refractory brick can be selected, knot
The different types of refractory material such as material, cellucotton is used singly or in combination.It is heating component inside heat insulation layer (6)
(7), heating component can be Si-Mo rod heating element, can also be carbonaceous heating element.It is put in the centre of furnace body (14)
Graphite crucible (9) is set, graphite crucible (9) is fixed by liner plate (16).The embedding stomata (10) that is furnished in black-fead crucible (9) bottom is so as to gas
Body enters graphite crucible (9) inside from bottom.Carbonaceous pelletizing (8) bed of material is housed, carbonaceous pelletizing is by vanadium titanium inside graphite crucible (9)
Magnetic iron ore, reducing agent and binder are prepared.It is thermocouple (2) above the bed of material, thermocouple (2) is fixed on sealing cover (3),
Height away from carbonaceous pelletizing (8) bed of material is adjustable.
It is gas pipeline (11) below graphite crucible (9), gas is generated by air source (13), and gas is adjusted by distributing cabinet (12)
The ingredient and flow of body reach the lower part that reaction vessel-graphite crucible (9) are delivered to after requirement, enter earthenware by stomata (10)
Inside crucible, and even dispersion is between carbonaceous pelletizing material particles.
Heating component (7) and thermocouple (2) are connect with temperature control cabinet (1), and the rate of heat addition, heat preservation temperature are controlled by program setting
The series of parameters such as degree, soaking time.
The present invention for titaniferous materials reduction, carbonization provide a kind of reduction effect is good, carbonation rate is high, operation is simple,
It safeguards that processing unit simple, that operating cost is low, the device can be passed through gas, control reaction process atmosphere, it is anti-to meet chemistry
The atmosphere requirements answered, meanwhile, it is capable to protect the product after reduction and carbonization not oxidized, the quality of product is not by shadow in temperature-fall period
It rings, to obtain the product of high metal rate, high carbonation rate；This processing unit can be commonly used to laboratory research, or
Industrialized production is offered reference experience, and popularizing application prospect is wide.
The present invention provides a kind of processing method of vanadium titano-magnetite, using the processing unit described in above-mentioned technical proposal into
Row processing, including：
Carbonaceous pelletizing is packed into crucible, temperature controlling instruments and air intake apparatus is opened, makes carbonaceous pelletizing in protective gas
Carry out reduction and carbonization；
The carbonaceous pelletizing is prepared by vanadium titano-magnetite, reducing agent and binder.
In the present invention, the preparation method of the carbonaceous pelletizing is preferably：
By titanomagnetite and reducing agent and binder formulation, briquetting after mixing obtains carbon containing green pellets；
Carbon containing green pellets is dried, carbonaceous pelletizing is obtained.
In the present invention, the vanadium titano-magnetite is preferably v-ti magnetite concentrate, and Fe's is total in the v-ti magnetite concentrate
Mass content is preferably 50%~60%, more preferably 52%~55%, most preferably 52.6%.The v-ti magnetite concentrate
Ingredient is preferably：Fe2O3Mass content is preferably 40~45%, more preferably 41~43%, most preferably 41.6%；FeO mass
Content is preferably 30~40%, more preferably 30~35%, most preferably 30.23%；TiO2Mass content is preferably 10~
15%, more preferably 12~14%, most preferably 12.91%；The mass content of S is preferably 0.6~0.7%, more preferably
0.65%；The mass content preferred < 0.01% of P, more preferably 0.008%.
In the present invention, the reducing agent is preferably carbonaceous reproducibility material, such as coal dust, coke powder metallurgical fuel, more excellent
It is selected as anthracite coal dust.In the present invention, the binder is preferably bentonite.In the present invention, the vanadium titano-magnetite, also
The mass ratio of former agent and binder is preferably 100：(25~30)：(2~5).
In the present invention, the shape of the carbon containing green pellets can be arbitrary shape, it is preferable that grain size≤20mm is advisable.
The temperature of heretofore described drying is preferably 100~120 DEG C, more preferably 110 DEG C；The time of the drying is preferably 4~6
Hour, more preferably 5 hours.
Carbonaceous pelletizing is packed into crucible by the present invention makes the bed of material be in the constant temperature zone in stove.In the present invention, temperature control is opened
Equipment preferably sets the 8 DEG C/min of heating rate < of temperature control device；Holding temperature be 1250~1400 DEG C, more preferably 1250~
1350 DEG C, most preferably 1300 DEG C；Soaking time is preferably 1~3 hour, more preferably 1.5~2.5 hours, and most preferably 2 is small
When.
In the present invention, air intake apparatus is opened, makes air intake apparatus to being passed through protective gas at crucible bottom stomata, it is such as lazy
Property gas.In the present invention, it is preferred to which controlling air intake apparatus is passed through gas when furnace chamber is warming up to 450~500 DEG C, more preferably
500℃；After reaction, stop ventilation when cavity temperature is less than 200 DEG C.
In the present invention, after the Reduction of Pellet Containing Coal Char carbonization, it preferably is off temperature control device and air intake apparatus, is opened
Sealing cover takes out crucible, material is poured out, the processing product after reduction and carbonization is obtained.
In an embodiment of the present invention, vanadium titano-magnetite is handled using the processing unit of structure shown in Fig. 1, specifically
Process is：It is packed into graphite crucible (9) after carbonaceous pelletizing (8) is weighed, it is ensured that material is in the constant temperature zone of heating component (7)
It is interior.Black-fead crucible (9) after charging is put into furnace chamber, and by liner plate (16) that graphite crucible (9) card is securely fixed.Adjust heat
The height of galvanic couple (2) makes the thermometric bottom end of thermocouple (2) apart from charge level about 1~2cm, is fixed on thermocouple (2) after adjusting
On sealing cover (3), and sealing cover (3) is covered.Water inlet (5) is opened until water outlet (4) there are flowing out.Open temperature control cabinet
(1), and according to certain heating rate and the temperature of heat preservation, time requirement setting program, program brings into operation heating after setting.
Distributing cabinet (12) is opened, gas type and flow are set and starts the temperature requirement for ventilating and terminating ventilation, runs program.Place
Temperature control cabinet (1) is closed after reason, closes air source (13) and distributing cabinet (12), closes cooling water.Sealing cover (3) is opened, is taken out
Graphite crucible (9), sample is poured out, and obtains the material of high-quality reduction and carbonization.
The processing method of vanadium titano-magnetite provided by the invention uses at the processing unit described in above-mentioned technical proposal
Reason is suitable for being reduced directly the technical process of carbonization titaniferous materials, and high-quality is obtained by controlling the process conditions such as temperature, atmosphere
Product.
Embodiment 1
V-ti magnetite concentrate is handled using processing unit shown in FIG. 1, the main component of v-ti magnetite concentrate and
Mass percentage is as shown in table 1, and table 1 is the main component and content of v-ti magnetite concentrate.
The main component and content/% of 1 v-ti magnetite concentrate of table
| Sample ID | TFe | Fe2O3 | FeO | TiO2 | S | P |
| V-ti magnetite concentrate | 52.60 | 41.61 | 30.23 | 12.91 | 0.65 | 0.008 |
Note：TFe is the mass percentage that ferro element is total in v-ti magnetite concentrate.
Make carbonaceous pelletizing
By v-ti magnetite concentrate and anthracite coal dust (reducing agent) and bentonite (binder) according to 100：28：3 ratio
Example dispensing, briquetting after mixing obtainThe carbon containing green pellets of cylinder, green pellets is in 110 DEG C of conditions
Dry carbonaceous pelletizing is obtained after lower drying 5h.
Reduction and carbonization carbonaceous pelletizing
It is packed into graphite crucible (9) after carbonaceous pelletizing (8) is weighed, bed depth about 150mm, is in heating component (7)
Constant temperature zone in.Black-fead crucible (9) after charging is put into furnace chamber, and is stuck on liner plate (16), is securely placed.Adjust thermoelectricity
The height of even (2), makes the thermometric bottom end of thermocouple (2) apart from charge level about 1.5cm, thermocouple (2) is passed through screw after adjusting
It is fixed on sealing cover (3), and sealing cover (3) is covered.Water inlet (5) is opened until water outlet (4) there are flowing out.Open control
Warm cabinet (1), setting heating and heat preservation program, heating rate < 8 DEG C/min keep the temperature 2.0h under the conditions of 1300 DEG C, run program.It opens
Distributing cabinet (12) is opened, air source (13) is using inert gas, setting program：Start to be passed through gas when being warming up to 500 DEG C, keep the temperature
Journey terminates to terminate ventilation after material is cooled to 200 DEG C or less, runs program.After treatment closes temperature control cabinet (1), closes air source
(13) and distributing cabinet (12) cooling water, is closed.Sealing cover (3) is opened, graphite crucible (9) is taken out, material is poured out, is restored
Material after carbonization.
Assay is carried out to the material after reduction and carbonization, testing result is as shown in table 2, and table 2 is the object obtained after handling
The main component and content of material.
The main component and content % of the material obtained after the processing of table 2
| Sample name | TFe | MFe | TTi | TiC | Degree of metalization | Carbonation rate |
| Material after reduction and carbonization | 73.64 | 70.55 | 13.44 | 15.21 | 95.80 | 90.49 |
Note：1) TTi is the mass percentage that titanium elements are total in sample；
2) degree of metalization is the ratio of metallic iron (MFe) and full iron (TFe) in sample；
3) carbonation rate is the ratio of the titanium and full titanium (TTi) in TiC in sample.
As shown in Table 2, it by using the processing unit and its matching method of vanadium titano-magnetite provided by the invention, can incite somebody to action
Ferriferous oxide overwhelming majority reduction (degree of metalization is up to 95.80%) in v-ti magnetite concentrate, titanium oxide overwhelming majority carbon
Change (carbonation rate is up to 90.49%), there is preferable reduction and carbonization effect, it is higher to the utilization rate of vanadium titano-magnetite.
As seen from the above embodiment, the present invention provides a kind of processing units of vanadium titano-magnetite, including：Furnace body, temperature control
Equipment and air intake apparatus；By sealing cover, heat insulation layer, the furnace wall being arranged outside heat insulation layer is formed the furnace body；Institute
The enclosure space for stating sealing cover and heat insulation layer formation is furnace chamber；It is provided with temperature measuring equipment and heating equipment in the furnace chamber,
Temperature controlling instruments controls heating equipment according to the output temperature of temperature measuring equipment；It is provided with crucible in the middle part of the furnace chamber, it is described
Crucible bottom carries multiple stomatas；The air intake apparatus delivers the gas at crucible bottom stomata；It is arranged on the sealing cover
There is exhaust equipment, the gas in furnace chamber is discharged by exhaust equipment.Compared with prior art, using device energy provided by the invention
Enough direct solid state reduction vanadium titano-magnetites, and the processing unit of vanadium titano-magnetite provided by the invention goes back vanadium titano-magnetite
Former effect is good, carbonation rate is high, can efficiently use vanadium titano-magnetite.
Claims (9)
1. a kind of processing method of vanadium titano-magnetite, is handled using the processing unit of vanadium titano-magnetite, including：
Carbonaceous pelletizing is packed into crucible, temperature controlling instruments and air intake apparatus is opened, carbonaceous pelletizing is made to be carried out in protective gas
Reduction and carbonization；
The carbonaceous pelletizing is prepared by vanadium titano-magnetite, reducing agent and binder；
The processing unit of the vanadium titano-magnetite, including：Furnace body, temperature controlling instruments and air intake apparatus；
By sealing cover, heat insulation layer, the furnace wall being arranged outside heat insulation layer is formed the furnace body；
The enclosure space that the sealing cover and heat insulation layer are formed is furnace chamber；
Temperature measuring equipment and heating equipment are provided in the furnace chamber, temperature controlling instruments sets heating according to the output temperature of temperature measuring equipment
It is standby to be controlled；
Crucible is provided in the middle part of the furnace chamber, the crucible bottom carries multiple stomatas；
The air intake apparatus delivers the gas at crucible bottom stomata；
Exhaust equipment is provided on the sealing cover, the gas in furnace chamber is discharged by exhaust equipment.
2. according to the method described in claim 1, it is characterized in that, the material of the heat insulation layer is refractory material.
3. according to the method described in claim 1, it is characterized in that, the furnace wall be water cooled furnace wall, be provided with cooling water inlet
And cooling water outlet.
4. according to the method described in claim 1, it is characterized in that, the temperature measuring equipment is thermocouple, the thermocouple is fixed
On sealing cover, it is arranged above crucible.
5. according to the method described in claim 1, it is characterized in that, the heating equipment adds for Si-Mo rod heating element or carbonaceous
Thermal element.
6. according to the method described in claim 1, it is characterized in that, the crucible is graphite crucible.
7. according to the method described in claim 1, it is characterized in that, the air intake apparatus includes air source, gas distributing chamber and flue
Road；
Air source conveys gas to gas distributing chamber；
It is delivered the gas at crucible bottom stomata by gas pipeline after the ingredient and flow of gas distributing chamber's adjustment gas.
8. processing method according to claim 1, which is characterized in that the reducing agent is carbonaceous reproducibility material；It is described
Binder is bentonite.
9. processing method according to claim 1, which is characterized in that the temperature controlling instruments control pelletizing carries out reduction and carbonization
Temperature be 1250~1400 DEG C.
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| CN113088688A (en) * | 2021-04-15 | 2021-07-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Acid adding device suitable for vanadium slag leaching process |
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| US6293993B1 (en) * | 1997-04-17 | 2001-09-25 | Trefimetaux | Method for recycling brass foundry waste |
| CN201144282Y (en) * | 2007-09-14 | 2008-11-05 | 北京航空航天大学 | Temperature gradient direction flow vapor deposition furnace for preparing charcoal/charcoal member |
| CN101302586A (en) * | 2008-07-03 | 2008-11-12 | 太原理工大学 | Microwave heating, solid state reduction and gaseous dephosphorization method for manganese ore powder |
| CN204039551U (en) * | 2014-09-11 | 2014-12-24 | 北京首量科技有限公司 | A kind of plumbago crucible |
| CN104263870A (en) * | 2014-10-08 | 2015-01-07 | 重庆大学 | Direct-reduction multi-gradient extraction technology for vanadium-titanium magnetite concentrate |
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|---|---|---|---|---|
| US6293993B1 (en) * | 1997-04-17 | 2001-09-25 | Trefimetaux | Method for recycling brass foundry waste |
| CN201144282Y (en) * | 2007-09-14 | 2008-11-05 | 北京航空航天大学 | Temperature gradient direction flow vapor deposition furnace for preparing charcoal/charcoal member |
| CN101302586A (en) * | 2008-07-03 | 2008-11-12 | 太原理工大学 | Microwave heating, solid state reduction and gaseous dephosphorization method for manganese ore powder |
| CN204039551U (en) * | 2014-09-11 | 2014-12-24 | 北京首量科技有限公司 | A kind of plumbago crucible |
| CN104263870A (en) * | 2014-10-08 | 2015-01-07 | 重庆大学 | Direct-reduction multi-gradient extraction technology for vanadium-titanium magnetite concentrate |
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Effective date of registration: 20220729 Address after: 617000 xiangyangyi village, East District, Panzhihua City, Sichuan Province Patentee after: PANGANG GROUP PANZHIHUA STEEL & VANADIUM Co.,Ltd. Address before: 617000 Taoyuan street, East District, Panzhihua, Sichuan Province, No. 90 Patentee before: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE Co.,Ltd. |