CN205590770U - Put forward vanadium system - Google Patents
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- CN205590770U CN205590770U CN201620357825.3U CN201620357825U CN205590770U CN 205590770 U CN205590770 U CN 205590770U CN 201620357825 U CN201620357825 U CN 201620357825U CN 205590770 U CN205590770 U CN 205590770U
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Abstract
The utility model relates to a put forward vanadium system, including reduction reactor with melt the branch electric stove, reduction reactor has to be used for adding the feed inlet who contains vanadium raw materials pelletizing and reductant powder and to be used for discharging the metallization and contains the bin outlet of vanadium material, it has the feed inlet that is used for the joining metallization to expect including the vanadium to melt the branch electric stove. The utility model discloses a contain the reduction the vanadium operation is proposed to the technology that melts step by step, and process flow is short, the step is simple, and technology energy consumption and manufacturing cost are lower, and area is little, but the large -scale industry metaplasia is produced.
Description
Technical field
This utility model belongs to metal smelt technical field, is specifically related to a kind of vanadium extraction system.
Background technology
Be presently used for producing the process for extracting vanadium containing vanadium material, it is thus achieved that generally coexist with other valuable metal elements containing vanadium in vanadium material,
The impact quality containing vanadium material, or due to technique own characteristic and technological parameter problem, cause vanadium to enter metal bath, make to produce
Flow process containing vanadium material complicates, and cost increases, and vanadium recovery rate significantly reduces, and the metallization melt impurity content simultaneously obtained is high,
Economic benefit is the best.
The some drawbacks of these existing process for extracting vanadium is: (1) recovery rate containing vanadium material is low, only 70～80%；(2) long flow path,
Complex manufacturing；(3) economic benefit is the best, and part is difficult to scale, industrialized production.
Utility model content
This utility model embodiment provides a kind of vanadium extraction system, at least can solve the segmental defect of prior art.
This utility model embodiment relates to a kind of vanadium extraction system, including:
Reduction reactor, it has for adding the feed(raw material)inlet containing vanadium raw materials pelletizing and reducing agent powder and for discharging metallization
Discharge gate containing vanadium material；
Molten point of electric furnace, it has for adding the described metallization charging aperture containing vanadium material.
As one of embodiment, described reduction reactor is shaft furnace.
As one of embodiment, described shaft furnace includes a combustor and at least one reduction room, and each described reduction room the most vertically wears
On described combustor, the top of each described reduction room is enclosed and is set in the inner by described combustor；Each described reduction ceiling portion is equipped with
Described feed(raw material)inlet, is equipped with described discharge gate bottom each described reduction room.
As one of embodiment, described combustor furnace wall circumferentially arranged with multiple burners, each described burner all by gas main and
Combustion air house steward supplies；Being equipped with gas exit on each described reduction room, each described gas exit is respectively positioned on described combustor
Side, each described gas exit is all connected with described gas main by branch gas tube.
As one of embodiment, each described branch gas tube is connected to gas dust remover, the port of export of described gas dust remover and institute
State gas main to connect.
As one of embodiment, the heat conductivity of bottom, described reduction room furnace wall refractory material is compared with the heat conduction of top furnace wall refractory material
Coefficient is low.
As one of embodiment, the horizontal cross-section of each described reduction room is rounded or square.
As one of embodiment, described vanadium extraction system includes for preparing the described ingredient sector containing vanadium raw materials pelletizing；Described burning
Room is provided with waste gas outlet, and described waste gas outlet is connected to described ingredient sector by exhaust piping to be carried out containing vanadium raw materials pelletizing described
Drying and preheating.
As one of embodiment, described reduction reactor is connected by transport establishment with a described molten point electric furnace, and described transport establishment will
Thermal state metalization material Han vanadium that described reduction reactor is discharged is directed in described electric furnace.
This utility model embodiment at least achieves following beneficial effect: this utility model uses and comprises reduction-molten technique step by step
Carrying out vanadium extraction operation, technological process is short, step is simple, and process energy consumption and production cost are relatively low, and floor space is little, can be extensive
Industrialized production.The metallization that reduction reaction obtains material degree of metalization Han vanadium may be up to more than 90%, available high purity iron after molten point
Water and the slag of high vanadium content, vanadium recovery is up to more than 90%, and the molten iron purity i.e. obtained and the grade containing vanadium product are the highest,
Economic benefits.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment or existing
In technology description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this practicality
Some novel embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The structural representation of the vanadium extraction system that Fig. 1 provides for embodiment one；
The main TV structure schematic diagram of the shaft furnace that Fig. 2 provides for embodiment two；
The plan structure schematic diagram of the shaft furnace that Fig. 3 provides for embodiment two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear,
It is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.
Based on the embodiment in this utility model, those of ordinary skill in the art are obtained on the premise of not making creative work
All other embodiments, broadly fall into the scope of this utility model protection.
Embodiment one
Such as Fig. 1, this utility model embodiment relates to a kind of vanadium extraction system, including:
Reduction reactor 3, it has for adding containing vanadium raw materials pelletizing 1 and the feed(raw material)inlet of reducing agent powder 2 and for discharging
The metallization discharge gate containing vanadium material 4；
Molten point of electric furnace 5, it has for adding the described metallization charging aperture containing vanadium material 4.Metallization enters electric furnace 5 containing vanadium material 4
In after molten divisional processing, obtain the slag 7 of high-purity molten iron 6 and high vanadium content, after discharging electric furnace, high-purity molten iron 6 can ingot casting, molten
Slag 7 is then for vanadium extraction.
Wherein, above-mentioned reduction reactor 3 is preferably and uses shaft furnace 3, and charging and discharge are easy to operate, sustainable production.For
Being connected between reduction reactor 3 with electric furnace 5, i.e. metallization, supplied the process to electric furnace 5 containing vanadium material 4 by reduction reactor 3,
Can be cold conditions supply or hot supply, the most hot supply, can shortened process and save the energy, improve PROCESS FOR TREATMENT
Efficiency.Above-mentioned hot supply process is realized by transport establishment, the hot gold that described reduction reactor 3 is discharged by this transport establishment
Genusization is directed in described electric furnace 5 containing vanadium material 4.This transport establishment uses the material conveyor of high temperature resistant (400～600 DEG C).
Such as Fig. 1, being provided with screening mechanism (can use conventional screening plant) below the discharge gate of reduction reactor 3, being used for will
The metallization discharged is sieved with ash containing vanadium material 4, and oversize is above-mentioned metallization containing vanadium material 4.Storage can be set further
Feed bin and feeding chamber, storage bin is located at by above-mentioned screening mechanism, contains vanadium material 4 for storing the metallization of acquisition, and feeding chamber is located at
Above electric furnace 5 charge door, store the metallization transporting and maybe metallization is sent in electric furnace 5 containing vanadium material 4 containing vanadium material 4.
Embodiment two
This utility model embodiment relates to a kind of vanadium extraction system, and the structure of this system is identical with embodiment one, specifically repeats no more,
Wherein, the reduction reactor 3 that the present embodiment is used is shaft furnace 3.Above-mentioned shaft furnace 3 is preferably the shaft furnace 3 using muffle heating,
I.e. reduction room is separately independently arranged with combustor, and muffle heating can ensure to reduce indoor reducing gas and be evenly distributed, and reduction process can
Control degree is high, is effectively improved reduction reaction efficiency.
Such as Fig. 2-Fig. 3, in the present embodiment, it is provided that the shaft furnace 3 of a kind of muffle heating, go back with at least one including a combustor 302
Former room 301, each described reduction room 301 is the most vertically arranged on described combustor 302, and described combustor 302 is gone back described in each
The top of former room 301 is enclosed and is set in the inner；Top, each described reduction room 301 is equipped with charge door, for adding the pelletizing Han vanadium raw materials
1, it is equipped with discharge gate bottom each described reduction room 301.
The horizontal cross-section of each described reduction room 301 is rounded or square, preferably circular, with improve reduction room 301 in radially
The temperature homogeneity in each region, thus improve the uniformity of reduction reaction.Described combustor 302 furnace wall is circumferentially arranged with multiple burnings
Mouth 303, each described burner 303 is all supplied by gas main 305 and combustion air house steward 306, by combustor 302
Gas-fired produces heat and provides direct reduction reactor institute calorific requirement for each reduction room 301；For reducing in ensureing each reduction room 301
The uniformity that reaction is carried out, to ensure the greater homogeneity of product, each reduction room 301 becomes array to arrange in combustor 302,
Certainly, can respectively reduce the discharge velocity of room 301 according to the extent control that reaction in each reduction room 301 is carried out, as near combustor
The discharge velocity of each reduction room 301 of 302 furnace walls can relatively be positioned at the discharge velocity of the reduction room 301 of combustor 302 central region
Hurry up.
Being equipped with gas exit on each described reduction room 301, each described gas exit is respectively positioned on above described combustor 302；Make
For preferably, each described gas exit is all connected with described gas main 305 by branch gas tube, is produced each reduction room 301
Coal gas is introduced to burning in combustor 302, provides heat for follow-up direct reduction reactor.Further, each described branch gas tube
Being connected to gas dust remover, the port of export of described gas dust remover is connected with described gas main 305, i.e. to reduction room 301
The coal gas of interior extraction is re-fed into combustor 302 burning after carrying out dedusting, can improve combustion efficiency, it is ensured that combustor 302 burns
The service life of mouth 303；Gas dust remover uses existing cleaner unit, such as cyclone dust extractor etc..
The heat conductivity of bottom, described reduction room 301 furnace wall refractory material is low compared with the heat conductivity of top furnace wall refractory material；I.e. also
Top, former room 301 furnace wall uses the refractory material laying that heat-conductive characteristic is good, to improve between combustor 302 and reduction room 301
Heat-transfer effect, improve reduction reaction speed, reduction bottom, room 301 furnace wall uses common refractory material laying, anti-to reduction
Pelletizing after should carries out being incubated slow cooling.
Further, described vanadium extraction system includes for preparing the described ingredient sector containing vanadium raw materials pelletizing 1, this ingredient sector bag
Include for producing the granulation mechanism containing vanadium raw materials pelletizing 1 and for the drier being dried containing vanadium raw materials pelletizing 1.Described
Combustor 302 is provided with waste gas outlet, and described waste gas outlet is connected to above-mentioned drier to described containing vanadium raw materials by exhaust piping
Pelletizing 1 is dried preheating, reaches to save the effect of the energy.
Embodiment three
Such as Fig. 1, this utility model embodiment relates to a kind of extraction vanadium method, mainly includes reduction and melts step by step, particularly as follows:
Step one, react including in mixed material containing vanadium raw materials and reducing agent powder 2 loads reduction reactor 3,
React for a long time through high temperature and obtain metallization containing vanadium material 4.Wherein, reaction temperature is in the range of 1000～1066 DEG C, to control containing vanadium
In raw material, non-vanadium metal component participates in reduction reaction rate>90%, and participate in reduction reaction rate<10% containing vanadium component；Response time
10～18h.The further preferred scope of above-mentioned reaction temperature is 1050～1055 DEG C, it is ensured that participate in response rate < 1% containing vanadium component.
Step 2, metallization is delivered to electric furnace 5 containing vanadium material 4 in carry out molten divisional processing, obtain molten iron 6 and containing vanadium slag 7, contain
Vanadium slag 7 is for vanadium extraction.Wherein, it is preferably in the electric furnace 5 of weak oxide atmosphere, carries out molten divisional processing, to avoid step one
The middle metal obtained through reduction reaction is the most oxidized.Owing to step one participating in reduction reaction containing non-vanadium metal component in vanadium raw materials
Rate>90%, and containing vanadium component participate in reduction reaction rate<10%, therefore, through melting after divisional processing, high-purity molten iron 6, molten iron can be obtained
In 6, the content of ferrum element is up to more than 99.5%, optimum up to 99.9%, and the response rate of vanadium is up to more than 90%, and optimum vanadium returns
Yield is up to more than 99%.
Continue above-mentioned extraction vanadium method, and for being connected between step one with step 2, i.e. metallization contains vanadium material 4 by reduction reactor
3 supplies, to the process of electric furnace 5, can be that cold conditions supplies or hot supply, the most hot supply, can shortened process and
Save the energy, improve PROCESS FOR TREATMENT efficiency.The above-mentioned metallization supplying temperature containing the hot supply of vanadium material 4 is at 400～600 DEG C.
Continue above-mentioned extraction vanadium method, and in step one, described mixed material is formed by containing vanadium raw materials pelletizing 1 and reducing agent powder 2,
Will contain after vanadium raw materials pelletizing 1 mixes with reducing agent powder 2 and add in above-mentioned reduction reactor 3.Wherein, reducing agent powder 2
Proportioning be 30～70wt%, the percentage by weight that i.e. reducing agent powder 2 is shared in mixed material 30～70%, above-mentioned reduction
The powder that agent powder 2 uses substrate to be carbon, wherein carbon content is 60～85wt%.The above-mentioned preparation process containing vanadium raw materials pelletizing 1
For: will contain vanadium raw materials and obtain raw material pelletizing 1 with addition of binding agent mixing pelletize, wherein, the proportioning of binding agent is 1～3wt%, and right
Raw material pelletizing 1 is dried.Certainly, said mixture material adds viscous after may be used without mixing with reducing agent powder 2 containing vanadium raw materials
Knot agent pelletize.
Preferably using high vanadium material containing vanadium raw materials employed in the present embodiment, this high vanadium material includes the V of 0.78～0.95wt%2O5、
The Fe of 56～67wt%2O3And TFe is 60～65wt%, surplus is by TiO2、SiO2、Al2O3、CaO、MgO、C、P、S
Deng composition.
Embodiment four
Above-mentioned extraction vanadium method is further described by the present embodiment.
In the present embodiment, carry out the reduction under different Reduction parameter-molten point operation with the experiment carrying out vanadium extraction.Wherein, experiment bar
Part is as follows:
Use is high vanadium material containing vanadium raw materials, and this high vanadium material includes: the V of 0.8～0.9wt%2O5, the Fe of 60～66wt%2O3,
The FeO of 25～28wt%, TFe are 60～65wt%, 2.9～the TiO of 3.6wt%2, the SiO of 4.01～4.82wt%2, 2.11～2.59
The Al of wt%2O3, surplus includes the microcomponents such as CaO, MgO, C, P, S；
The reducing agent powder 2 percentage by weight shared by mixed material is all about 50%；
Reduction reactor 3 all uses the shaft furnace 3 that the muffle provided in embodiment two heats.
Table 1 below shows that different reduction temperature and the metallization that under the different recovery time, reduction reaction is obtained (are i.e. gone up containing vanadium material 4
State metallization that step one in extraction vanadium method obtained containing vanadium material 4) degree of metalization:
Table 1 direct reduction reactor parameter and reduction result table
| Experiment numbers | Reduction temperature/DEG C | Recovery time/h | Degree of metalization/wt% |
| 1 | 950 | 16 | 78.01 |
| 2 | 950 | 18 | 78.35 |
| 3 | 990 | 16 | 80.06 |
| 4 | 1000 | 18 | 82 |
| 5 | 1020 | 18 | 84.56 |
| 6 | 1050 | 15 | 89.04 |
| 7 | 1050 | 16.5 | 93.92 |
| 8 | 1055 | 15 | 93.56 |
| 9 | 1055 | 16.5 | 94.21 |
| 10 | 1060 | 13 | 94.16 |
| 11 | 1060 | 15 | 95.08 |
| 12 | 1066 | 14 | 96.30 |
| 13 | 1066 | 11 | 95.60 |
| 14 | 1070 | 12 | 96.72 |
| 15 | 1070 | 10.5 | 95.94 |
| 16 | 1150 | 16 | 98.16 |
Table 2 below shows metallization that above-mentioned reduction reaction the obtained composition containing the molten iron 6 obtained after molten point of vanadium material 4:
Table 2 hot metal composition detection table
| Experiment numbers | C | Si | Mn | P | S | Fe | Ti | V |
| 1 | 0.2641 | 0.0637 | 0.0205 | 0.0041 | 0.0137 | 98.6345 | 0.0026 | 0.4109 |
| 2 | 0.2701 | 0.0579 | 0.0288 | 0.004 | 0.0143 | 98.7712 | 0.0035 | 0.4602 |
| 3 | 0.2106 | 0.0377 | 0.0216 | 0.0042 | 0.0139 | 99.2623 | 0.0041 | 0.251 |
| 4 | 0.1692 | 0.0072 | 0.0063 | 0.0036 | 0.0099 | 99.6528 | 0.0027 | 0.1018 |
| 5 | 0.0079 | 0.0016 | 0.0091 | 0.004 | 0.0075 | 99.7609 | <0.001 | 0.037 |
| 6 | 0.0065 | <0.001 | 0.0034 | 0.0040 | 0.0100 | 99.9253 | 0.0014 | 0.0049 |
| 7 | 0.0092 | 0.0021 | 0.0050 | 0.0045 | 0.0126 | 99.899 | <0.001 | 0.0128 |
| 8 | 0.0085 | <0.001 | 0.0061 | 0.0035 | 0.0087 | 99.8701 | 0.0011 | 0.0025 |
| 9 | 0.0112 | 0.0025 | 0.0117 | 0.0042 | 0.0029 | 99.852 | 0.0013 | 0.0016 |
| 10 | 0.0623 | 0.023 | 0.0169 | 0.0034 | 0.0177 | 99.7036 | 0.0065 | 0.0313 |
| 11 | 0.0573 | 0.0515 | 0.021 | 0.0057 | 0.0082 | 99.7721 | 0.0016 | 0.0672 |
| 12 | 0.1133 | 0.0621 | 0.0165 | 0.0049 | 0.0137 | 99.6037 | 0.0044 | 0.1365 |
| 13 | 0.1265 | 0.0716 | 0.0310 | 0.0052 | 0.0057 | 99.6111 | 0.0028 | 0.1155 |
| 14 | 0.1916 | 0.0852 | 0.0177 | 0.0063 | 0.0051 | 99.4692 | 0.0032 | 0.2102 |
| 15 | 0.2015 | 0.0721 | 0.0255 | 0.0041 | 0.0063 | 99.3305 | 0.0071 | 0.3061 |
| 16 | 0.2876 | 0.0508 | 0.0272 | 0.0044 | 0.0049 | 99.0522 | 0.0023 | 0.5088 |
Table 3 below shows that the metallization that above-mentioned reduction reaction is obtained divides rear v element in slag 7 with molten iron 6 containing vanadium material 4 is molten
Distribution situation:
Table 3 v element distribution situation table in slag with molten iron
By above-mentioned table 1 it can be seen that prolongation recovery time and raising reduction temperature all can improve the degree of metalization of reduzate.Right
The ratio experimental data of 6# and 7#, identical at reduction temperature, only extend in the case of recovery time 1.5h, reduzate metallizes
Rate improves about 5%.The experimental data of contrast 6#, 7# and 16#, reduction temperature essentially identical in the recovery time improves 100 DEG C
In the case of, reduzate degree of metalization significantly improves, and 16# improves about 9% compared to 6# reduzate degree of metalization.It is visible,
Reduction temperature is the most notable to the raising effect of reduzate degree of metalization.
By above-mentioned table 2 it can be seen that molten iron 6 material obtained after molten point is the highest, iron content substantially more than 99%, P,
S content is the most relatively low, is the quality raw materials preparing high-purity iron block.The molten iron 6 purity height obtained is primarily due to based on above-mentioned muffle
The coal base shaft furnace 3 of heating carries out reduction treatment, under the conditions of reduction temperature controls in the range of 1000～1066 DEG C, can effectively go back
Former ferrum, suppresses the reduction of Si, Mn, Ca, Mg, Al, Ti, V, Cr, B etc. simultaneously so that the impurity in molten iron 6 after molten point
Content is relatively low；Wherein, reduction temperature to be controlled the better processing effect when 1050～1055 DEG C.
By upper table 3 it can be seen that improving and the prolongation of recovery time with reduction temperature, melt a point rear vanadium distribution in molten iron 6
Gradually increasing, when reason is to improve reduction temperature, prolongation recovery time, part vanadium is reduced in reduction process, and ferrum, vanadium
Character is similar, and during follow-up molten point, vanadium enters in molten iron 6.Simultaneously it can be seen that 1050 DEG C (experiment numbers 6#) are vanadium
The critical condition whether reduced；Reduction temperature is notable to the reduction of vanadium, when temperature is more than 1050 DEG C, will make containing vanadium raw materials (high
Vanadium material) in vanadium be reduced in a large number, continue improve reduction temperature, can make to be completely reduced containing vanadium in vanadium raw materials；When extending reduction
Between certain facilitation the most original to vanadium, but facilitation is the most notable.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all new in this practicality
Within the spirit of type and principle, any modification, equivalent substitution and improvement etc. made, should be included in protection of the present utility model
Within the scope of.The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (9)
1. a vanadium extraction system, it is characterised in that including:
Reduction reactor, it has for adding the feed(raw material)inlet containing vanadium raw materials pelletizing and reducing agent powder and for discharging metallization
Discharge gate containing vanadium material；
Molten point of electric furnace, it has for adding the described metallization charging aperture containing vanadium material.
Vanadium extraction system the most according to claim 1, it is characterised in that: described reduction reactor is shaft furnace.
Vanadium extraction system the most according to claim 2, it is characterised in that: described shaft furnace includes a combustor and at least one reduction room,
Each described reduction room is the most vertically arranged on described combustor, and the top of each described reduction room is enclosed and set in the inner by described combustor；
Each described reduction ceiling portion is equipped with described feed(raw material)inlet, is equipped with described discharge gate bottom each described reduction room.
Vanadium extraction system the most according to claim 3, it is characterised in that: described combustor furnace wall is circumferentially arranged with multiple burners, respectively
Described burner is all supplied by gas main and combustion air house steward；Gas exit, each described coal it is equipped with on each described reduction room
Gas outlet is respectively positioned on above described combustor, and each described gas exit is all connected with described gas main by branch gas tube.
Vanadium extraction system the most according to claim 4, it is characterised in that: each described branch gas tube is connected to gas dust remover, institute
The port of export stating gas dust remover is connected with described gas main.
Vanadium extraction system the most according to claim 3, it is characterised in that: the heat conductivity of bottom, described reduction room furnace wall refractory material
Low compared with the heat conductivity of top furnace wall refractory material.
Vanadium extraction system the most according to claim 3, it is characterised in that: the horizontal cross-section of each described reduction room is rounded or square.
8. according to the vanadium extraction system described in claim 3 or 4, it is characterised in that: described vanadium extraction system includes for preparing described containing vanadium
The ingredient sector of raw material pelletizing；Described combustor is provided with waste gas outlet, described waste gas outlet by exhaust piping be connected to described in join
Material mechanism is dried preheating to the described pelletizing containing vanadium raw materials.
Vanadium extraction system the most according to any one of claim 1 to 3, it is characterised in that: described reduction reactor divides with described melting
Electric furnace is connected by transport establishment, and thermal state metalization material Han vanadium that described reduction reactor is discharged by described transport establishment is directed into institute
State in electric furnace.
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|---|---|---|---|
| CN201620357825.3U CN205590770U (en) | 2016-04-26 | 2016-04-26 | Put forward vanadium system |
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