CN105331810B - Microwave heating equipment and method for vanadium in sulfuric acid leaching bone coal - Google Patents
Microwave heating equipment and method for vanadium in sulfuric acid leaching bone coal Download PDFInfo
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- CN105331810B CN105331810B CN201510655945.1A CN201510655945A CN105331810B CN 105331810 B CN105331810 B CN 105331810B CN 201510655945 A CN201510655945 A CN 201510655945A CN 105331810 B CN105331810 B CN 105331810B
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
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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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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
It is used for the microwave heating equipment and method of vanadium in sulfuric acid leaching bone coal the invention discloses a kind of, the microwave heating equipment includes feeding mechanism, closed microwave cavity and the non-metallic pipe for running through microwave cavity up and down, being surrounded by for microwave cavity some is used to produce the microwave sources of microwave, the upper end of non-metallic pipe is connected with middle hopper, middle hopper is provided with the pumping outlet for being evacuated, and the discharging opening of feeding mechanism is connected with middle hopper.This method includes charging, microwave heating, the step of curing, water normal temperature leach and is filtrated to get the vanadium aqueous solution naturally.The present invention has the advantages that the fast rate of heat addition, homogeneous heating, pollutes small, good corrosion resistance, can improve V leaching rate, reduction acid consumption and energy consumption.
Description
Technical field
The present invention relates to technical field of wet metallurgy, and in particular to a kind of microwave heating for being used for vanadium in sulfuric acid leaching bone coal
Device and method.
Background technology
Extracting vanadium from stone coal technology passes through the development of more than 20 years, and one of current main development direction is acid leaching process, acidleach
Technique is generally divided into two kinds again, and one kind is first to be calcined bone coal navajoite at high temperature, by the lattice of high temperature mineral, makes+3
Valency vanadium is oxidized to+4 water-soluble or sour valencys and+5 valency vanadium, then uses sulfuric acid leaching.Another directly leached using the concentrated sulfuric acid
Method, i.e., stirred and mixed using bone coal and the concentrated sulfuric acid, using the highly acid and oxidisability of the concentrated sulfuric acid from bone coal Leaching Vanadium.It is high
The advantage of warm roasting-acid leaching process is that the leaching rate of vanadium is higher, is had the disadvantage after high-temperature roasting, substantial amounts of impurity element such as aluminium,
Iron, silicon, titanium, magnesium, phosphorus etc. are leached simultaneously in company with vanadium, carry out very big difficulty to subsequent product separation, purification zone, serious have impact on
Vanadium product quality and add production cost.The advantage of direct acid leaching process is that flow is short, energy consumption is low, the impurity level of leaching is few,
The leaching rate that has the disadvantage vanadium is relatively low, sulfuric acid consumption is high, because the vanadium under normal temperature in bone coal navajoite is insoluble in acid, alkali, therefore
Leaching rate is low, simultaneously because sulfuric acid is binary acid, its first stage ionization is strong acid, and secondary ionization is to soak vanadium under weak acid, therefore normal temperature
When sulfuric acid utilization rate only less than 60%, cause acid consumption high, add the cost of material of vanadium extraction.
In order to improve the leaching rate and reduction acid consumption of direct acidleach, the method for improving reaction temperature is usually taken, that is, heats
To the method for 200 DEG C or so leachings, reaction rate can be accelerated, reacted more complete.But encountered in industrial production how
The problem heated to this concentrated sulfuric acid and bone coal powder/particle mixture, because one is that mixed material corrosivity is very strong,
200 DEG C or so most metal materials corrode intolerant to it；Two be due to that mixed material stickiness is strong, and easily agglomerating or viscous wall is given
Homogeneous heating and operation bring very big obstacle.It is industrial to attempt to be heated using rotary kiln earliest, but because viscous wall seriously causes
It can not produce.Then heated using horizontal rotary furnace, pushed bat kiln and tunnel cave, but also because existing, equipment corrosion is serious, operate
The shortcomings of bad environments, high energy consumption, labor intensity are big, leaching is incomplete, causes production very difficult, therefore in the urgent need to one kind
Suitable heater and corresponding heating means are replaced.
The content of the invention
The technical problem to be solved in the present invention be overcome the shortcomings of prior art exist there is provided a kind of rate of heat addition it is fast, add
It is hot uniform, pollute small, good corrosion resistance, can improve V leaching rate, reduction acid consumption and energy consumption be used for vanadium in sulfuric acid leaching bone coal
Microwave heating equipment, also provide it is a kind of using the microwave heating equipment carry out sulfuric acid leaching bone coal in vanadium method.
In order to solve the above technical problems, the present invention uses following technical scheme：
It is a kind of to be used for the microwave heating equipment of vanadium in sulfuric acid leaching bone coal, including feeding mechanism, closed microwave cavity
Run through the non-metallic pipe of the microwave cavity up and down, being surrounded by for the microwave cavity is some for producing microwave
Microwave source, the upper end of the non-metallic pipe is connected with middle hopper, and the middle hopper is provided with the pumping outlet for being evacuated, institute
The discharging opening for stating feeding mechanism is connected with the middle hopper.
Above-mentioned microwave heating equipment, it is preferred that the non-metallic pipe is aluminium oxide ceramics, glass or ptfe plastic material
Pipe.
Above-mentioned microwave heating equipment, it is preferred that the feeding mechanism is conveying worm, the conveying worm goes out
Material mouth is set and positioned at the surface of the non-metallic pipe upper end mouth of pipe down.
Above-mentioned microwave heating equipment, it is preferred that the middle hopper is the cylinder that a top is tapered, bottom is in back taper
Device is described, the lower end of the drum ladle is tightly connected provided with outlet and by the upper end mouth of pipe of flange mechanism and non-metallic pipe,
The pumping outlet is located at the upper end of drum ladle；Blanking vibration is equiped with the outer wall of the back taper bottom of the drum ladle
Device.
Above-mentioned microwave heating equipment, it is preferred that the microwave cavity is a cuboid metal box, the cuboid gold
The upper wall and lower wall for belonging to case are connected to a stainless steel tube connected with inner chamber, and the non-metallic pipe, which is worn, is installed on two
In stainless steel tube, support flange of the stainless steel tube being connected with cuboid metal box lower wall provided with a supporting non-metallic pipe, respectively not
Become rusty between steel pipe and non-metallic pipe by fluorubber or ptfe plastic sealing.
Above-mentioned microwave heating equipment, it is preferred that be respectively equipped with four side walls of the cuboid metal box one it is micro-
Ripple feed-in mouthful, each microwave feed-in mouthful is connected with an independent high-power microwave source by waveguide；Or the cuboid
Multiple low power microwave sources are directly installed with respectively on four side walls of metal box.
Above-mentioned microwave heating equipment, it is preferred that be connected with one on the stainless steel tube being connected with cuboid metal box lower wall
The tubaeform stainless steel discharge nozzle connected with the non-metallic pipe lower end mouth of pipe, the Ce Biyu centers of the tubaeform stainless steel discharge nozzle
Wire clamp angle is 0.5~15 °；Discharging vibrator is also equiped with the outer wall of the tubaeform stainless steel discharge nozzle.
Above-mentioned microwave heating equipment, it is preferred that close to the position of stainless steel tube on the tubaeform stainless steel discharge nozzle
Place is provided with a thermocouple stretched into tubaeform stainless steel discharge nozzle tube chamber.
Above-mentioned microwave heating equipment, it is preferred that the lower section of the lower end outlet of the tubaeform stainless steel discharge nozzle is provided with
Spacing between the lower end outlet of belt conveyor, the conveyer belt of the belt conveyor and tubaeform stainless steel discharge nozzle is 50
~150mm；Weighing sensor is additionally provided with below the conveyer belt of the belt conveyor.
As a total inventive concept, the present invention also provides a kind of using above-mentioned microwave heating equipment progress sulfuric acid leaching
The method of vanadium, comprises the following steps in bone coal：
（1）Bone coal navajoite powder and the concentrated sulfuric acid are mixed to get mixed material, sent into by feeding mechanism in middle hopper,
Blanking vibrator is opened, mixed material is entered non-metallic pipe under the effect of vibration of gravity and blanking vibrator；
（2）Open microwave source to heat the mixed material in non-metallic pipe, by controlling microwave power or control
Mixed material in non-metallic pipe by speed, make from the temperature of charge that non-metallic pipe lower ending opening is exported be maintained at 120 DEG C ~
220℃；
（3）The material of output is delivered into feed bin using belt conveyor to cure naturally at least 24 hours, then the leaching of water normal temperature
Go out, filter after obtain the vanadium aqueous solution, the liquid-solid ratio that water normal temperature is leached is 4：1, the time is at least 4 hours.
Compared with prior art, the advantage of the invention is that：The present invention is used for the microwave heating of vanadium in sulfuric acid leaching bone coal
Device, carries out microwave heating, firstly, since microwave passes through in object using non-metallic pipe directing material by microwave cavity
The charged particle conduction in portion and dielectric polarization and produce heat, the features such as with penetrability, selectivity, heating similar stone
There is unique advantage in terms of the mixed viscous material of coal, concentrated acid, mixed material can be goed deep into and be internally heated, with heating
Speed is fast, homogeneous heating, the advantage of noncontact heating；Secondly, leaching of the microwave to metal ion in mineral, which has, significantly urges
Change is acted on, and can improve the leaching rate of metal；Furthermore, mixed material carries out microwave heating during by non-metallic pipe, has
Beneficial to preventing in addition to hydrofluoric acid the corrosion of acid material；In addition, running through microwave cavity above and below non-metallic pipe, material is relied on certainly
Focus in non-metallic pipe and convey and complete heating, it is not necessary to extra conveying equipment, production cost and reduction can be greatlyd save
Energy consumption, therefore, microwave heating equipment of the invention are heated to bone coal with concentrated sulfuric acid mixture, can not only solve heating process
In severe corrosive and the problem such as uneven of conducting heat, while there is raising V leaching rate, reduction acid consumption and energy consumption, pollute small, even
Continue the features such as property is good, the Green production process of the efficient vanadium extracting from bone coal can be achieved.
Brief description of the drawings
Fig. 1 is used for the structural representation of the microwave heating equipment of vanadium in sulfuric acid leaching bone coal for the present invention.
Marginal data：
1st, feeding mechanism；2nd, microwave cavity；20th, cuboid metal box；21st, stainless steel tube；22nd, microwave feed-in mouthful；23、
Waveguide；24th, tubaeform stainless steel discharge nozzle；3rd, non-metallic pipe；4th, microwave source；5th, middle hopper；51st, pumping outlet；6th, under
Expect vibrator；7th, discharge vibrator；8th, thermocouple；9th, belt conveyor；10th, weighing sensor；100th, exhaust tube.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in figure 1, the present invention is used for the microwave heating equipment of vanadium in sulfuric acid leaching bone coal, including it is feeding mechanism 1, closed
Microwave cavity 2 and up and down run through microwave cavity 2 non-metallic pipe 3, microwave cavity 2 be surrounded by it is some be used for produce
The microwave source 4 of raw microwave, the upper end of non-metallic pipe 3 is connected with middle hopper 5, and middle hopper 5 is provided with to be gone out for the pumping being evacuated
Mouth 51, the discharging opening of feeding mechanism 1 is connected with middle hopper 5.
In the present embodiment, non-metallic pipe 3 is aluminium oxide ceramics, glass or ptfe plastic material pipe.The diameter of non-metallic pipe 3
For 100mm~300mm, length is 2000~4000mm.
In the present embodiment, middle hopper 5 is the drum ladle that a top is tapered, bottom is in back taper, drum ladle
Lower end is provided with exporting and being tightly connected by the upper end mouth of pipe of flange mechanism and non-metallic pipe 3, and pumping outlet 51 holds located at tubular
The upper end of device, is connected by flange with exhaust tube 100, and the gas for will be produced in the heating process of non-metallic pipe 3 is pumped into gas
Cleaning system；Blanking vibrator 6 is equiped with the outer wall of the back taper bottom of drum ladle, beneficial to the material in middle hopper 5
Conveyed into non-metallic pipe 3 and in non-metallic pipe 3.
In the present embodiment, feeding mechanism 1 is conveying worm, and conveying worm is by opening up on the outer wall of middle hopper 5
Flange port enters in middle hopper 5, and it is in horizontally disposed.The discharging mouth down of conveying worm is set and positioned at non-metallic pipe 3
The surface of the upper end mouth of pipe, namely conveying worm discharging mouth down be aligned non-metallic pipe 3 import, be conducive to material to enter
Non-metallic pipe 3.
In the present embodiment, microwave cavity 2 is a cuboid metal box 20, can be made using stainless steel, cuboid metal
The upper wall and lower wall of case 20 are connected to a stainless steel tube connected with inner chamber 21, and non-metallic pipe 3, which is worn, is installed on two
In stainless steel tube 21, supporting method of the stainless steel tube 21 being connected with the lower wall of cuboid metal box 20 provided with a supporting non-metallic pipe 3
Orchid, is sealed between each stainless steel tube 21 and non-metallic pipe 3 by fluorubber or ptfe plastic.The length root of two stainless steel tubes 21
Depending on diameter according to non-metallic pipe 3, scope in 250mm between 1500mm, the leakage for suppressing microwave.
In the present embodiment, a microwave feed-in mouthful 22, Mei Gewei is respectively equipped with four side walls of cuboid metal box 20
Ripple feed-in mouthful 22 is connected with an independent high-power microwave source 4 by waveguide 23.In other embodiments, can also be in length
Multiple low power microwave sources 4 are directly installed with respectively on four side walls of cube metal box 20（≤5KW）.
In the present embodiment, one and non-metallic pipe 3 are connected with the stainless steel tube 21 being connected with the lower wall of cuboid metal box 20
The tubaeform stainless steel discharge nozzle 24 of lower end mouth of pipe connection, the side wall of tubaeform stainless steel discharge nozzle 24 is with centerlines
0.5~15 °；Discharging vibrator 7 is also equiped with the outer wall of tubaeform stainless steel discharge nozzle 24, beneficial to the discharging of material.
One is provided with the position of stainless steel tube 21 stretch into tubaeform stainless steel on tubaeform stainless steel discharge nozzle 24
Thermocouple 8 in the tube chamber of discharge nozzle 24, the temperature for measuring discharging.
In the present embodiment, the lower section of the lower end outlet of tubaeform stainless steel discharge nozzle 24 is provided with belt conveyor 9, and belt is defeated
Send machine 9 conveyer belt and tubaeform stainless steel discharge nozzle 24 lower end outlet between spacing be 50~150mm, the distance keeping away
While having exempted from belt putty, it also avoid producing microwave leakage because distance is too big；Below the conveyer belt of belt conveyor 9 also
Provided with weighing sensor 10, for detecting the weight of material on belt.
Above-mentioned weighing sensor 10 can be combined with PLC automatic control equipments, realize the material weight on auto-controlled belt conveyer 9
Amount is in certain limit.The operating of speedup conveyor 9 is can control when more than constant weight；Reduced when less than constant weight
The running speed of conveyer or even stopping, while stopping microwave heating, to avoid the leakage of microwave.Above-mentioned thermocouple 8 also can be with
PLC automatic control equipments are combined, and realize the heating-up temperature for automatically controlling material, when material overtemperature, it is possible to decrease the power output of microwave,
During less than design temperature, it is possible to decrease the running speed of belt conveyor 9 and the running speed of conveying worm.
A kind of method that vanadium in sulfuric acid leaching bone coal is carried out using above-mentioned microwave heating equipment, is comprised the following steps：
（1）Bone coal navajoite powder and the concentrated sulfuric acid are mixed to get mixed material, middle hopper 5 is sent into by feeding mechanism 1
It is interior, blanking vibrator 6 is opened, mixed material is entered non-metallic pipe 3 under the effect of vibration of gravity and blanking vibrator 6；
（2）Open microwave source 4 to heat the mixed material in non-metallic pipe 3, by controlling microwave power or control
Mixed material processed passes through speed in non-metallic pipe 3（By control the running speed of belt conveyor 9 and conveying worm come
Realize）, make to be maintained at 120 DEG C ~ 220 DEG C from the temperature of charge that the lower ending opening of non-metallic pipe 3 is exported；
（3）The material of output is delivered into feed bin using belt conveyor 9 to cure naturally at least 24 hours, then the leaching of water normal temperature
Go out, filter after obtain the vanadium aqueous solution, the liquid-solid ratio that water normal temperature is leached is 4：1, the time is at least 4 hours.Can using conventional method
The production of the vanadium aqueous solution is obtained into vanadic anhydride.Above-mentioned feed bin is made up of insulation material and acid-resistant cement.
The following is two specific embodiments that the method for vanadium in sulfuric acid leaching bone coal is carried out using above-mentioned microwave heating equipment：
Embodiment 1：
By sulfuric acid and certain real estate bone coal（V 0.8%）Powder is 15 by weight ratio:100 are mixed to get mixed material, mixing
Material is added in middle hopper 5 by feeding mechanism 1, and mixed material enters non-in the presence of gravity and blanking vibrator 6
In metal tube 3.Wherein, a diameter of 100mm of non-metallic pipe 3, length is 2200mm, and the length in microwave cavity 2 is
1350mm, is 600mm positioned at length of the microwave cavity below 2.The vertical length of tubaeform stainless steel discharge nozzle 24 is
The angle of 300mm, sideline and vertical line is 5 °, and the tubaeform bottom of stainless steel discharge nozzle 24 is apart from belt 60mm.Microwave occurs
The microwave that device is produced is entered in microwave cavity 2 by waveguide 23 and microwave feed-in mouthful 22.Material in the non-metallic pipe 3 from
The up to lower heating that heats up, control inlet amount and discharging speed by the absorption microwave of microwave cavity 2, enter material tubaeform
Temperature during stainless steel discharge nozzle 24 is 120 DEG C.Material after heating is delivered in feed bin that to cure 24 naturally small by belt conveyor 9
When, leached 4 hours with water normal temperature, liquid-solid ratio 4：1, filtering slag removing chemical examination, it is 82.6% to calculate V leaching rate.
Embodiment 2：
By sulfuric acid and certain real estate bone coal（V 0.8%）Powder is 15 by weight ratio:100 are mixed to get mixed material.Mixing
Material is added in middle hopper 5 by feeding mechanism 1, and mixed material enters non-in the presence of gravity and blanking vibrator 6
In metal tube 3.Wherein, a diameter of 100mm of non-metallic pipe 3, length is 2200mm, and the length in microwave cavity 2 is
1350mm, is 600mm positioned at length of the microwave cavity below 2.The vertical length of tubaeform stainless steel discharge nozzle 24 is
The angle of 300mm, sideline and vertical line is 5 °, and the tubaeform bottom of stainless steel discharge nozzle 24 is apart from belt 60mm.Microwave occurs
Device（Microwave source 4）The microwave of generation is entered in microwave cavity 2 by waveguide 23 and microwave feed-in mouthful 22.Material is in non-gold
Belong to the heating that heats up by the absorption microwave of microwave cavity 2 from top to bottom in pipe 3, control inlet amount and discharging speed, make material
It it is 200 DEG C into temperature during tubaeform stainless steel discharge nozzle 24.Material after heating is delivered in feed bin certainly by belt conveyor 9
So curing 24 hours, are leached 4 hours, liquid-solid ratio 4 with water normal temperature：1, filtering slag removing chemical examination, calculating V leaching rate is
89.4%。
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.To those of ordinary skill in the art, the improvement and change resulting in the case where not departing from the technology of the present invention concept thereof
Change and also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of be used for the microwave heating equipment of vanadium in sulfuric acid leaching bone coal, it is characterised in that：Including feeding mechanism（1）, it is closed
Microwave cavity（2）Run through the microwave cavity up and down（2）Non-metallic pipe（3）, the microwave cavity（2）Four
Week is provided with some microwave sources for being used to produce microwave（4）, the non-metallic pipe（3）Upper end be connected with middle hopper（5）, it is described
Middle hopper（5）Provided with the pumping outlet for pumping（51）, the feeding mechanism（1）Discharging opening and the middle hopper
（5）Connection；The microwave cavity（2）For a cuboid metal box（20）, the cuboid metal box（20）Upper wall and under
Wall is connected to a stainless steel tube connected with inner chamber（21）, the non-metallic pipe（3）Wear and be installed on two stainless steels
Pipe（21）In, with cuboid metal box（20）The stainless steel tube of lower wall connection（21）Provided with a supporting non-metallic pipe（3）Supporting
Flange, each stainless steel tube（21）With non-metallic pipe（3）Between pass through fluorubber or ptfe plastic and seal.
2. microwave heating equipment according to claim 1, it is characterised in that：The non-metallic pipe（3）For aluminium oxide ceramics,
Glass or ptfe plastic material pipe.
3. microwave heating equipment according to claim 1, it is characterised in that：The feeding mechanism（1）For conveying worm,
The discharging mouth down of the conveying worm is set and positioned at non-metallic pipe（3）The surface of the upper end mouth of pipe.
4. microwave heating equipment according to claim 1, it is characterised in that：The middle hopper（5）It is that a top is in cone
Shape, bottom are in the drum ladle of back taper, and the lower end of the drum ladle, which is provided with, exports and pass through flange mechanism and non-metallic pipe
（3）The upper end mouth of pipe be tightly connected, it is described pumping outlet（51）Located at the upper end of drum ladle；The back taper of the drum ladle
Blanking vibrator is equiped with the outer wall of bottom（6）.
5. microwave heating equipment according to claim 1, it is characterised in that：The cuboid metal box（20）Four sides
A microwave feed-in mouthful is respectively equipped with wall（22）, each microwave feed-in mouthful（22）Pass through waveguide（23）It is connected with an independence
High-power microwave source（4）；Or the cuboid metal box（20）Four side walls on be directly installed with multiple small work(respectively
Rate microwave source（4）.
6. microwave heating equipment according to claim 1, it is characterised in that：With cuboid metal box（20）Lower wall connection
Stainless steel tube（21）On be connected with one and non-metallic pipe（3）The tubaeform stainless steel discharge nozzle of lower end mouth of pipe connection（24）, it is described
Tubaeform stainless steel discharge nozzle（24）Side wall and centerlines be 0.5~15 °；The tubaeform stainless steel discharge nozzle（24）
Outer wall on be also equiped with discharging vibrator（7）.
7. microwave heating equipment according to claim 6, it is characterised in that：The tubaeform stainless steel discharge nozzle（24）On
Close to stainless steel tube（21）Position at be provided with one and stretch into tubaeform stainless steel discharge nozzle（24）Thermocouple in tube chamber（8）.
8. microwave heating equipment according to claim 6, it is characterised in that：The tubaeform stainless steel discharge nozzle（24）'s
The lower section of lower end outlet is provided with belt conveyor（9）, the belt conveyor（9）Conveyer belt and tubaeform stainless steel discharge nozzle
（24）Lower end outlet between spacing be 50~150mm；The belt conveyor（9）Conveyer belt below be additionally provided with biography of weighing
Sensor（10）.
9. a kind of method that vanadium in sulfuric acid leaching bone coal is carried out using microwave heating equipment as claimed in claim 1, its feature is existed
In：Comprise the following steps：
（1）Bone coal navajoite powder and the concentrated sulfuric acid are mixed to get mixed material, pass through feeding mechanism（1）Send into middle hopper（5）
It is interior, open blanking vibrator（6）, make mixed material in gravity and blanking vibrator（6）Effect of vibration under enter non-metallic pipe
（3）；
（2）Open microwave source（4）To non-metallic pipe（3）Interior mixed material is heated, by controlling microwave power or control
Mixed material processed is in non-metallic pipe（3）It is interior by speed, make from non-metallic pipe（3）The temperature of charge of lower ending opening output is kept
At 120 DEG C ~ 220 DEG C；
（3）Using belt conveyor（9）The material of output is delivered into feed bin to cure naturally at least 24 hours, then the leaching of water normal temperature
Go out, filter after obtain the vanadium aqueous solution, the liquid-solid ratio that water normal temperature is leached is 4：1, the time is at least 4 hours.
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| CN114752761B (en) * | 2022-04-29 | 2024-01-26 | 武汉科技大学 | Method for reinforcing grinding and leaching efficiency of vanadium shale by utilizing microwaves |
| CN114807631B (en) * | 2022-04-29 | 2023-10-20 | 武汉科技大学 | Continuous microwave treatment device for strengthening grinding and leaching efficiency of vanadium shale |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392333A (en) * | 2007-09-20 | 2009-03-25 | 杭州天港生物科技有限公司 | Vanadium-nitrogen alloy preparation method and device |
| CN103160696A (en) * | 2013-02-26 | 2013-06-19 | 中南大学 | Method for carrying out microwave heating on stone coal containing vanadium to extract vanadium |
| CN104726694A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Sintering prevention vanadium-containing stone coal microwave roasting method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392333A (en) * | 2007-09-20 | 2009-03-25 | 杭州天港生物科技有限公司 | Vanadium-nitrogen alloy preparation method and device |
| CN103160696A (en) * | 2013-02-26 | 2013-06-19 | 中南大学 | Method for carrying out microwave heating on stone coal containing vanadium to extract vanadium |
| CN104726694A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Sintering prevention vanadium-containing stone coal microwave roasting method |
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