CN104495933A - Production device and method of molybdenum oxide nanoparticles - Google Patents
Production device and method of molybdenum oxide nanoparticles Download PDFInfo
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- CN104495933A CN104495933A CN201410760081.5A CN201410760081A CN104495933A CN 104495933 A CN104495933 A CN 104495933A CN 201410760081 A CN201410760081 A CN 201410760081A CN 104495933 A CN104495933 A CN 104495933A
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Abstract
The invention relates to a production device and method of molybdenum oxide nanoparticles, aiming to solve the technical problems of unstable product quality, complex production procedures and low production efficiency in the production of molybdenum oxide nanoparticles in the prior art. The production device comprises a gasifying unit, a quenching unit and a collecting unit, wherein the gasifying unit is used for gasifying the precursor material of molybdenum oxide nanoparticles, the quenching unit is used for quenching the gasified molybdenum oxide nanoparticles, and the collecting unit is used for collecting the finished molybdenum oxide nanoparticles. The production device and method have the advantages of high production efficiency and stable product quality.
Description
Technical field
The present invention relates to all devices field in nano particle production, be specifically related to a kind of molybdenum oxide nanoparticles production equipment and production method.
Background technology
Nano particle and mean sizes are less than the molecule of a milscale (as one micron).This molecule is in industry widely known by the people, and people have keen interest to it.Because the nanocrystal of this molecule or other nanoscale features greatly change the performance of material.Such as, the material that certain material made by nano particle makes with by traditional method or ordinary size particles (as powder) makes is compared, it can show more remarkable mechanical property, and the nano particle in material also can show unique electrical property and magnetic property.The huge top layer of nanoparticle weight ratio makes to react rapidly between particle, and this also can impel the material having brand-new performance to produce.In a word, people recognize that the material can producing nano particle just means may design and find material that is brand-new, that more have practical value, can be used in the countless field of machinery, optics, electric power, chemistry etc.But the difficulty that limit the extensive utilization of nano particle is to produce the nano particle of size desired by people and weighs it by commercial criterion always, such as with kilogram calculate but not gram.
In the prior art, the mode preparing molybdenum oxide nanoparticles has: in preparation process, persursor material is carried out gasification process, and persursor material all can be evaporated in the process of gasification, therefore be carry out in parital vacuum mostly, then the persursor material of gasification cooled rapidly condensation nucleation and precipitate into as nano-particle material.Such as, in a kind of preparation process, the steam of the persursor material of gasification is directly injected on ice-cold even freezing rotor, condenses in drum surface immediately, the scraper being attached to rotating cylinder surface scrapes off the material of condensation, and these are exactly nanoparticle product.Because it is condensed in drum surface, the uniformity coefficient of its particle be can not be guaranteed, also can contact with drum surface in scraper carries out scraper on cylinder simultaneously, easily being scraped in finished product by cylinder metallics affects its purity.Take the rotating speed of above method rotor in preparation process, the efficiency, mode etc. of scraper have certain requirement, otherwise will directly affect the quality of its product, therefore adopt its operational requirement of the operation of aforesaid way high, control loaded down with trivial details, cause the quality of its product well not ensured; And for example, in another preparation process, the vapour stream of the persursor material of gasification is injected in condensation in factor nozzle to form, first vapour stream is allowed to accelerate at the polymeric part of nozzle, make it finally to accelerate to velocity of sound speed at jet hole, last vapour stream divides at the through part of nozzle and accelerates to supersonic speed speed further, and supersonic speed vapour stream cools rapidly final condensation becomes nano particle.And sonic nozzle preparation process, because of its persistence, can realize in theory producing a large amount of nanoparticle product, but it needs during the course by maintaining a convenient pressure difference during sonic nozzle, its operability pole is not easy to control, also there is another one problem in this preparation process simultaneously, nano-particle material may condense in nozzle inner walls, this will greatly reduce nozzle operational efficiency, even make it normally to run, make its preparation process more complicated, system operation cost is higher, and quality of its gasification to nano particle finished product and quality plays crucial factor, therefore persursor material how is made effectively to gasify, and gasification state molybdenum oxide nanoparticles is carried out the problem that effective absorption is this area research at present, also be the key factor improving nanoparticle mass.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, adapt to reality need, there is provided a kind of molybdenum oxide nanoparticles production equipment and production method, to solve unstable product quality, complex procedures, inefficient technical problem in the production of current molybdenum oxide nanoparticles.
In order to realize object of the present invention, the technical solution adopted in the present invention is:
Design a kind of molybdenum oxide nanoparticles production equipment, it comprising gasification unit for the persursor material of molybdenum oxide nanoparticles being carried out gasification process, being used for gasification state molybdenum oxide nanoparticles carry out the quench unit of quench treatment and be used for collecting the collector unit of molybdenum oxide nanoparticles finished product.
Described gasification unit it comprise vapourizing furnace, described vapourizing furnace comprises the body of heater that its inside has closed cavity, this gasification unit it also comprise feeding unit for carrying persursor material in body of heater, at least one correspondence is arranged in described body of heater, for to the electric heating body heated up in this body of heater, at least one inlet mouth be in communication with the outside is offered in the upper portion side wall of described body of heater, and offer at least one for state molybdenum oxide nanoparticles discharge of gasifying at the described middle part sidewall stating body of heater, and the air outlet that connect corresponding to described quench unit, at least one opening for feed is offered at the lower sides of described body of heater, the discharge end of described feeding unit with described opening for feed for being connected.
Described quench unit comprises manifold trunk, at least one its both ends open and its air inlet port correspondence is arranged at collection tube in described vapourizing furnace; Described manifold trunk upper end closed, its lower ending opening; The air outlet correspondence of described collection tube is arranged at the middle top of described manifold trunk, and correspondingly with the internal cavities of described manifold trunk is communicated with; The lower ending opening of described manifold trunk, and correspondingly with described collector unit to connect;
In described collection tube, be provided with the quench fluid tube that be communicated with corresponding to hardening liquid source, the outlet of described quench fluid tube is corresponding in opposite directions with the air outlet of described collection tube; The gasification state molybdenum oxide nanoparticles collected via described collection tube, in the outlet through described quench fluid tube, is condensed into solid oxide molybdenum nano particle with quenching fluid contacts, and comes together in described manifold trunk, and then collected by collector unit.
Described collector unit comprises the warehouse that filtering layer, its inside that can filter molybdenum oxide nanoparticles have cavity, the middle and upper part bulkhead of this warehouse offers the inlet mouth for being introduced by the molybdenum oxide nanoparticles after quench treatment in warehouse cavity, and this inlet mouth is corresponding with the lower ending opening of manifold trunk to be communicated with; And venting port is offered on the middle and lower part bulkhead of described warehouse; And be also provided with the vacuum fan that be communicated with corresponding to venting port in described exhaust ports via the vapor pipe of correspondence; Described filtering layer correspondence is arranged in the cavity between inlet mouth and venting port, is the region of two isolation by the cavity isolation up and down of filtering layer.
The end being positioned at the quench fluid tube of described collection tube in " (" shape, and the center of the end of this quench fluid tube outlet and the air outlet of described collection tube be centrally located on same level line;
Described quench unit also comprises the protection pipe fitting that its diameter is greater than the diameter of collection tube; The air outlet end correspondence of described collection tube is arranged at the middle part in described protection pipe fitting; The air outlet of described collection tube is communicated with via the outlet side of described protection pipe fitting is corresponding with the internal cavities of described manifold trunk, closes between the other end of described protection pipe fitting and described collection tube; And at least one gas port pipe inner compartment be communicated with vapourizing furnace internal cavities is offered on the below tube wall of collection tube being positioned at vapourizing furnace;
The dead in line of described collection tube and protection pipe fitting, and thermofin is provided with in the middle of described collection tube with protection pipe fitting, the thickness of described thermofin is 7-10 millimeter;
The guiding tube that be communicated with corresponding to described protection pipe fitting is provided with in described manifold trunk;
Described hardening liquid source comprises container for storing liquid, and described container for storing liquid is corresponding with the input port of described quench fluid tube to be communicated with; And be provided with valve on described quench fluid tube, and also correspondingly on quench fluid tube between described valve and the outlet of quench fluid tube be provided with tensimeter.
Described filtering net and horizontal direction are that 20 ° ~ 30 ° angles are arranged; And this filtering net is waterproof clothing;
In described inlet mouth, correspondence is provided with the air entraining pipe that the molybdenum oxide nanoparticles of gasification can be introduced into above filtering net, and the air outlet end face foremost of this air entraining pipe is the inclined-plane of an inclination, and this inclined-plane and described filtering net are parallel to setting; And being also provided with the gas blower that be communicated with corresponding to this air entraining pipe at the inlet end of described air entraining pipe, this gas blower is also corresponding with the lower ending opening of described manifold trunk to be communicated with;
Also be provided with its length arc receiving tank corresponding with described filtering net at the least significant end place of described filtering net, a trough rim of this receiving tank is corresponding with the least significant end of described filtering net to be connected, and its another trough rim is corresponding with the bulkhead of described warehouse to be connected; And bulkhead above described receiving tank also offers a discharge port, and this discharge outlet also correspondence be provided with movable closing door; Bulkhead in described cavity is also provided with seismic mass.
Described gasification unit also comprises the second gas blower for being blown into gas in the cavity in vapourizing furnace, the negative pressure gas blower for being extracted out by the state molybdenum oxide nanoparticles that gasifies in cavity; Described second gas blower is communicated with via the pipeline of correspondence is corresponding with described inlet mouth; Described negative pressure gas blower correspondence is arranged on the collection tube between described vapourizing furnace and described manifold trunk;
Described feeding unit comprises hopper, spiral feeding cylinder, the bottom surface of described hopper is the plane tilted, and offer discharge gate in the sidewall of this hopper, the least significant end place correspondence of bottom surface, the feed end of described spiral feeding cylinder is corresponding with described discharge gate to be communicated with, and the discharge end of this spiral feeding cylinder is corresponding with described opening for feed to be communicated with;
Also high temperature-resistant coating material is coated with in the furnace roof inside of described vapourizing furnace.
The present invention also designs a kind of method using molybdenum oxide nanoparticles production equipment as above to produce molybdenum oxide nanoparticles, and it comprises the following steps:
A. the temperature in vapourizing furnace is risen between 1150 DEG C to 1210 DEG C;
B. the second gas blower, negative pressure gas blower, gas blower, vacuum fan is opened successively;
C. open valve, make hardening liquid export ejection by the end of quench fluid tube;
D. in vapourizing furnace, send into the persursor material of molybdenum oxide nanoparticles;
Further, carry out step (d) front temperature in vapourizing furnace should be remained on 1150 DEG C to 1210 DEG C between continue 8-10 minute;
The pressure of the end of quench fluid tube outlet ejection hardening liquid should be remained on 4.0-5.3Pa when carrying out step (c);
The pumping capacity of described vacuum fan remains on 1000-1200 L/min;
Persursor material inputs in vapourizing furnace with the amount of 250-300Kg/ hour by described feeding unit;
Described hardening liquid is liquid nitrogen; The persursor material of described molybdenum oxide nanoparticles is molybdic oxide powder.
Beneficial effect of the present invention is:
1. the temperature in vapourizing furnace is increased to the temperature of more than 1,000 degree by the present invention by employing electric heating body, can by the persursor material that enters in body of heater directly by its by solid state transformed be gaseous state, the size of gasification state molybdenum oxide nanoparticles particle can will be controlled by the control of the electric heating body in this vapourizing furnace, it is made to meet the demand of producing, simultaneously by the vapourizing furnace of the design, continuous, persistence production can be realized in application process, meet the requirement of enterprise; And the one-tenth of this vapourizing furnace produces, and cost is low, non-environmental-pollution, extensive one-tenth that is easy and simple to handle, that be easy to enterprise produce.
2. by the inlet mouth of the design, and in body of heater, be blown into gas in conjunction with second gas blower of the design is continuable, as air etc., meet the reduction reaction of persursor material, improve its production efficiency.
3. by the air outlet of the design, and in conjunction with the collection tube of the design, can by gasification state molybdenum oxide nanoparticles in real time, effectively it is extracted out in body of heater, and then be delivered in the condensation operation of next operation.
4. the high temperature-resistant coating material that the furnace roof above the electric heating body of the design applies, can reflect the heat that electric heating body sends, and makes its thermal energy reflex to furnace bottom place, and then improves the gasification conversion of persursor material.To improve its production efficiency.
5. continuable to transferring raw material in body of heater by the feeding unit of the design, meet quantity-produced requirement; Via the vapourizing furnace of the design, in its application process, this vapourizing furnace is per hour can distil or gasify the persursor material of 250-300Kg kilogram.
6. the present invention is by changing traditional quenching device, use the quench fluid tube of the design and the combination of collection tube instead, effective quench treatment can be carried out to gasification state molybdenum oxide nanoparticles, the finished product produced in existing apparatus can be avoided to contain impurity, the problem that its purity is not high, the simultaneously relative existing apparatus of this device, easy and simple to handle, be easy to realize, operation is simple, the demand that can meet modern enterprise continuous prodution, angry efficiency is high.
7. the present invention is by abandoning original design, adopt the design of brand-new filtering net, can efficiently filtering layer gasification after molybdenum oxide nanoparticles, its production efficiency is high, quality product can effectively be ensured, simultaneously, easy and simple to handle, be easy to realize, adopt this device its enterprise's production cost greatly to reduce to enterprise.
3. the present invention also has other beneficial effects, will propose in the lump with corresponding structure in an embodiment.
Accompanying drawing explanation
Fig. 1 is primary structure principle schematic of the present invention;
Fig. 2 is cardinal principle structural profile schematic diagram of the present invention;
Fig. 3 is A portion structure for amplifying schematic diagram in Fig. 2;
In figure: 1. collection tube; 3. protect pipe fitting; 4. manifold trunk; 5. quench fluid tube; 6. gas port; 7. solid oxide molybdenum nano particle; 8. gasify state molybdenum oxide nanoparticles; 9. air entraining pipe; 10. thermofin; The end of 11. quench fluid tubes; 12. guiding tubes; 13. vapourizing furnaces; 14. container for storing liquids; 15. valves; 16. tensimeters; 17. warehouses; 18. inclined-planes; 19. filtering layers; 20. seismic mass; 21. vapor pipes; 22. receiving tanks; 23. movable closing doors; 24. vacuum fan 25. gas blowers; 26. gases; 27. second gas blowers; 28. persursor materials; 29. hoppers; 30. bottom surfaces; 31. spiral feeding cylinders; 32. spiral charging sheets; 33. negative pressure gas blowers; 34. high temperature-resistant coating materials; 35. electric heating bodies; 36. inlet mouths.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment 1: a kind of molybdenum oxide nanoparticles production equipment and production method, see Fig. 1, Fig. 2, Fig. 3; This device it comprising gasification unit for the persursor material of molybdenum oxide nanoparticles being carried out gasification process, being used for gasification state molybdenum oxide nanoparticles carry out the quench unit of quench treatment and be used for collecting the collector unit of molybdenum oxide nanoparticles finished product.
Described gasification unit it comprise vapourizing furnace, described vapourizing furnace it comprise body of heater 13, four correspondences that its inside has a closed cavity and be arranged in described body of heater for the electric heating body 35 heated up in this body of heater; This gasification unit it also comprise feeding unit for carrying persursor material in described body of heater; Further, an inlet mouth be in communication with the outside 36 is offered in the upper portion side wall of body of heater, meanwhile, it can be air that this vapourizing furnace also comprises for being blown into gas 26(in cavity) the second gas blower 27, this second gas blower 27 is communicated with via the pipeline of correspondence is corresponding with inlet mouth 36; And offer an air outlet for being discharged by gasification state molybdenum oxide nanoparticles at the described middle part sidewall stating body of heater 13, this vapourizing furnace also comprises the negative pressure gas blower 33 for being extracted out by the state molybdenum oxide nanoparticles 8 that gasifies in cavity, offers an opening for feed at the lower sides of body of heater; It is spiral charging sheet for being carried by persursor material that described feeding unit to comprise in hopper 29, spiral feeding cylinder 31, figure 32; The bottom surface 30 of described hopper 29 is the plane tilted, and offer discharge gate in the least significant end place correspondence of the sidewall bottom surface 30 of this hopper 29, the feed end of described spiral feeding cylinder 31 is corresponding with this discharge gate to be communicated with, and the discharge end of this spiral feeding cylinder 31 is corresponding with opening for feed to be communicated with.Simultaneously for improving the work-ing life of this vapourizing furnace, described body of heater is made up of SAE316 stainless steel.Meanwhile, be also coated with high temperature-resistant coating material in the furnace roof inside of this vapourizing furnace, the heat that electric heating body sends can reflect by this high temperature-resistant coating material, makes its thermal energy reflex to furnace bottom place, and then improves the gasification conversion of persursor material.To improve its production efficiency, above-described high temperature-resistant coating material is the available high temperature-resistant coating material in this area, as being the inorganic material can bearing more than 1300 DEG C temperature.Meanwhile, be also enclosed with thermal insulation layer, avoid the loss of energy in the outside of described body of heater 13, reduce the waste of resource, above-described thermal insulation layer can be the thermal insulation layer be incubated High Temperature Furnaces Heating Apparatus used in the market.
Described quench unit it comprise manifold trunk 4, two its left and right both ends opens, its air inlet port correspondence is arranged in vapourizing furnace and collection tube 1 and its diameter for collecting gasification state molybdenum oxide nanoparticles is greater than the protection pipe fitting 3 of the diameter of collection tube; The air outlet correspondence of described collection tube 1 is arranged at the middle part in protection pipe fitting 3; And the dead in line of described collection tube 1 and protection both pipe fittings 3; and collection tube 1 and the centre of protection pipe fitting 3 are provided with thermofin 5; the thickness of this thermofin 5 is 10 millimeters; thermofin 5 can play the effect of cooling to collection tube 1; thus stop the solid oxide molybdenum nano particle 7 after flowing through the condensation of collection tube 1 to evaporate again, improve its production efficiency.Via protecting, the outlet side of pipe fitting 3 is corresponding with the internal cavities of manifold trunk 4 to be communicated with the air outlet of described collection tube 1, closes between the other end (in Fig. 3 right-hand member) of described protection pipe fitting 3 and described collection tube 1 meanwhile.Described negative pressure gas blower 33 correspondence is arranged on collection tube 1.
Further, the quench fluid tube 5 that be communicated with corresponding to hardening liquid source is provided with in collection tube 1 in protection pipe fitting, the end 11 being positioned at the quench fluid tube of collection tube 1 in " (" shape, the outlet of this quench fluid tube is corresponding in opposite directions with the air outlet of described collection tube 1; And the center of the end 11 of this quench fluid tube outlet and being centrally located on same level line of air outlet of collection tube 1.Described manifold trunk 4 upper end closed, its lower ending opening; Described protection pipe fitting 3 correspondence is arranged at the middle top of manifold trunk; Meanwhile, be provided with the guiding tube 12 that be communicated with corresponding to protecting pipe fitting in described manifold trunk, the cross section of the discharging port of described guiding tube 12 is in the oblique line tilted.Above-described hardening liquid source comprises container for storing liquid 14, and described container for storing liquid 14 is corresponding with the input port of quench fluid tube 5 to be communicated with.Meanwhile, quench fluid tube 5 is also provided with valve 15, and also correspondingly on quench fluid tube 5 between valve 15 and the outlet of quench fluid tube 5 is provided with tensimeter 16, sprayed the size of pressure by the adjustable quench fluid tube 5 of the unlatching of regulated valve 15.Simultaneously in order to improve its working efficiency, the below tube wall of collection tube 1 being positioned at vapourizing furnace offers multiple gas port 6 pipe inner compartment be in communication with the outside.
Described collector unit it comprise the warehouse 17 that filtering layer 19, its inside that can filter molybdenum oxide nanoparticles and be made up of waterproof clothing have cavity, the middle and upper part bulkhead of this warehouse 17 offers the inlet mouth for being introduced by the molybdenum oxide nanoparticles of gasification in cavity, and offer venting port on the middle and lower part bulkhead of described warehouse; Further, in described inlet mouth, correspondence is provided with the air entraining pipe 9 that the molybdenum oxide nanoparticles of gasification can be introduced into above filtering net, and end face is foremost the inclined-plane 18 of an inclination in the air outlet of this air entraining pipe 9, as shown in Fig. 2 18, this inclined-plane 18 and filtering net 19 are in parallel to setting, to form its air outlet and filtering net is arranged in opposite directions, so the gasification of being discharged by air outlet too molybdenum oxide nanoparticles be directly expelled on filtering net.Further, the gas blower that be communicated with corresponding to this air entraining pipe 9 is also provided with at the inlet end of described air entraining pipe 9.This gas blower is corresponding with the lower ending opening of manifold trunk to be communicated with.And be also provided with the vacuum fan that be communicated with corresponding to venting port in described exhaust ports via the vapor pipe 21 of correspondence.Described filtering layer 19 correspondence is arranged in the cavity between inlet mouth and venting port, is the region of two isolation by the cavity isolation up and down of filtering layer 19, and this filtering net 19 is that 20 ° of angles are arranged with horizontal direction.Simultaneously, its length arc receiving tank 22 corresponding with described filtering net is also provided with at the least significant end place of described filtering net 19, a trough rim of this receiving tank 22 is corresponding with the least significant end of described filtering net 19 to be connected, and its another trough rim is corresponding with the bulkhead of described warehouse 17 to be connected.Meanwhile, the bulkhead above described receiving tank 22 also offers a discharge port, and this discharge outlet also correspondence be provided with movable closing door 23.Product can be taken out by this movable closing door, further, the bulkhead in described cavity also be provided with seismic mass 20, by the interval vibrations of this seismic mass, the molybdenum oxide nanoparticles after filtration be shaken in the receiving tank of below aborning.
In a particular application, first should by the temperature heat in this vapourizing furnace between 1150 DEG C to 1210 DEG C, open the second gas blower, negative pressure negative pressure gas blower afterwards, conveying persursor material in stove can be thought simultaneously, when persursor material inputs in straight stove, can in very short time can by its from solid state transformed be gaseous state, middle not through liquid transformation, carry out reduction reaction with the air in it simultaneously; Gasification state molybdenum oxide nanoparticles can be collected pipe to carry out absorbing and being discharged, and carry out the reaction of next operation, the persursor material in this vapourizing furnace can be the multiple molybdenum compound being converted into molybdic oxide, as molybdic oxide powder etc.In force collection tube and on gas port correspondence be arranged in vapourizing furnace 13 the gasification state molybdenum oxide nanoparticles in this stove absorbed fully; simultaneously; in order to increase the work-ing life of this device; described quench fluid tube, manifold trunk, protection pipe fitting are made by SAE316 stainless steel, and described collection tube is by being made up of superalloy (as Hastelloy).And above-mentioned hardening liquid can include but are not limited to these liquid: as hydrogen, helium, nitrogen, oxygen, argon and methane.Hardening liquid in the present embodiment preferably liquid nitrogen.This hardening liquid can cool vaporized gasification state molybdenum oxide nanoparticles 8 fast.The pressure of the discharge liquid nitrogen (or gaseous state, gas-liquid mixed) of the end of the outlet of the quench fluid tube 5 of the present embodiment collection tube 1 inside has very large impact to the nano particle that this device is produced.Such as, the end of the outlet of quench fluid tube 5 is the closer to the left end of collection tube 1, and the nano particle produced is larger.Contrary, the left end near collection tube 1 is far away, and the nano particle produced is less.But other factors also can affect size of particles.Such as, even if the end of the outlet of quench fluid tube 5 is very near near the left end of collection tube 1, as long as the fluid pressure accelerating the end of the outlet of quench fluid tube 5 also can produce less nano particle.And come together under the effect of gas blower in described manifold trunk 4, and then sucked in collector unit by the effect of vacuum fan and collected.
Embodiment 2: use molybdenum oxide nanoparticles production equipment as above to produce the method for molybdenum oxide nanoparticles, see Fig. 1, Fig. 2, Fig. 3; It comprises the following steps:
A. the temperature in vapourizing furnace is risen between 1150 DEG C to 1210 DEG C;
B. the second gas blower 27, negative pressure gas blower 33, gas blower 25, vacuum fan 24 is opened successively;
C. open valve, make hardening liquid export ejection by the end of quench fluid tube;
D. in vapourizing furnace, send into the persursor material of molybdenum oxide nanoparticles;
Carry out step (d) front temperature in vapourizing furnace should be remained on 1150 DEG C to 1210 DEG C between continue 8-10 minute; Meanwhile, the pressure of the end of quench fluid tube outlet ejection hardening liquid should be remained on 4.0-5.3Pa when carrying out step (c); And the pumping capacity of vacuum fan 24 remains on 1000-1200L/min; Persursor material should input in vapourizing furnace with the amount of 250-300Kg/ hour by feeding unit; Hardening liquid in present method is liquid nitrogen; The persursor material of molybdenum oxide nanoparticles is molybdic oxide powder.
Finally point out; although; what embodiments of the invention were announced is preferred embodiment; but be not limited thereto, those of ordinary skill in the art, very easily according to above-described embodiment; understand spirit of the present invention; and make different amplifications and change, but only otherwise depart from spirit of the present invention, all in protection scope of the present invention.
Claims (10)
1. a molybdenum oxide nanoparticles production equipment, is characterized in that: it comprising gasification unit for the persursor material of molybdenum oxide nanoparticles being carried out gasification process, being used for gasification state molybdenum oxide nanoparticles carry out the quench unit of quench treatment and be used for collecting the collector unit of molybdenum oxide nanoparticles finished product.
2. molybdenum oxide nanoparticles production equipment as claimed in claim 1, it is characterized in that: described gasification unit it comprise vapourizing furnace, described vapourizing furnace comprises the body of heater (13) that its inside has closed cavity, this gasification unit it also comprise for the feeding unit to conveying persursor material (28) in body of heater (13), at least one correspondence is arranged in described body of heater (13), for to the electric heating body heated up in this body of heater (35), at least one inlet mouth be in communication with the outside (36) is offered in the upper portion side wall of described body of heater (13), and offer at least one for state molybdenum oxide nanoparticles (8) discharge of gasifying at the described middle part sidewall stating body of heater (13), and the air outlet that connect corresponding to described quench unit, at least one opening for feed is offered at the lower sides of described body of heater (13), the discharge end of described feeding unit with described opening for feed for being connected.
3. molybdenum oxide nanoparticles production equipment as claimed in claim 2, is characterized in that: described quench unit comprises manifold trunk (4), at least one its both ends open and its air inlet port correspondence is arranged at the collection tube (1) in described vapourizing furnace; Described manifold trunk (4) upper end closed, its lower ending opening; The air outlet correspondence of described collection tube (1) is arranged at the middle top of described manifold trunk (4), and correspondingly with the internal cavities of described manifold trunk (4) is communicated with; The lower ending opening of described manifold trunk, and correspondingly with described collector unit to connect;
In described collection tube (1), be provided with the quench fluid tube (5) that be communicated with corresponding to hardening liquid source, the outlet of described quench fluid tube (5) is corresponding in opposite directions with the air outlet of described collection tube (1); The gasification state molybdenum oxide nanoparticles (8) collected via described collection tube (1) is in the outlet through described quench fluid tube (5), solid oxide molybdenum nano particle (7) is condensed into quenching fluid contacts, and come together in described manifold trunk (4), and then collected by collector unit.
4. molybdenum oxide nanoparticles production equipment as claimed in claim 3, it is characterized in that: described collector unit comprises the warehouse (17) that filtering layer (19), its inside that can filter molybdenum oxide nanoparticles have cavity, the middle and upper part bulkhead of this warehouse (17) offers the inlet mouth for being introduced by the molybdenum oxide nanoparticles after quench treatment in warehouse cavity, and this inlet mouth is corresponding with the lower ending opening of manifold trunk to be communicated with; And venting port is offered on the middle and lower part bulkhead of described warehouse; And be also provided with the vacuum fan (24) that be communicated with corresponding to venting port in described exhaust ports via the vapor pipe (21) of correspondence; Described filtering layer (19) correspondence is arranged in the cavity between inlet mouth and venting port, is the region of two isolation by the cavity isolation up and down of filtering layer (19).
5. molybdenum oxide nanoparticles production equipment as claimed in claim 4, it is characterized in that: the end (11) being positioned at the quench fluid tube of described collection tube (1) in " (" shape, and the air outlet of the end of this quench fluid tube (11) center of exporting and described collection tube (1) be centrally located on same level line;
Described quench unit also comprises the protection pipe fitting (3) that its diameter is greater than the diameter of collection tube (1); The air outlet end correspondence of described collection tube (1) is arranged at the middle part in described protection pipe fitting (3); The air outlet of described collection tube (1) is communicated with via the outlet side of described protection pipe fitting (3) is corresponding with the internal cavities of described manifold trunk (4), closes between the other end of described protection pipe fitting (3) and described collection tube (1); And at least one gas port pipe inner compartment be communicated with vapourizing furnace internal cavities (6) is offered on the below tube wall of collection tube (1) being positioned at vapourizing furnace;
Described collection tube (1) and protection pipe fitting (3) both deads in line, and thermofin (10) is provided with in the middle of described collection tube (1) with protection pipe fitting (3), the thickness of described thermofin (10) is 7-10 millimeter;
The guiding tube (12) that be communicated with corresponding to described protection pipe fitting (3) is provided with in described manifold trunk (4);
Described hardening liquid source comprises container for storing liquid (14), and described container for storing liquid (14) is corresponding with the input port of described quench fluid tube (5) to be communicated with; And be provided with valve (15) on described quench fluid tube (5), and quench fluid tube (5) between described valve (15) and the outlet of quench fluid tube (5) is upper is also correspondingly provided with tensimeter (16).
6. molybdenum oxide nanoparticles production equipment as claimed in claim 5, is characterized in that: described filtering net (19) and horizontal direction are that 20 ° ~ 30 ° angles are arranged; And this filtering net (19) is waterproof clothing;
In described inlet mouth, correspondence is provided with the air entraining pipe (9) that the molybdenum oxide nanoparticles of gasification can be introduced into above filtering net, the air outlet end face foremost of this air entraining pipe (9) is the inclined-plane (18) of an inclination, and this inclined-plane (18) and described filtering net (19) in parallel to setting; And being also provided with the gas blower (25) that be communicated with corresponding to this air entraining pipe (9) at the inlet end of described air entraining pipe (9), this gas blower (25) is also corresponding with the lower ending opening of described manifold trunk to be communicated with;
The arc receiving tank (22) that its length is corresponding with described filtering net is also provided with at the least significant end place of described filtering net (19), a trough rim of this receiving tank (22) is corresponding with the least significant end of described filtering net (19) to be connected, and its another trough rim is corresponding with the bulkhead of described warehouse (17) to be connected; And on the bulkhead of the top of described receiving tank (22), also offer a discharge port, and this discharge outlet also correspondence be provided with movable closing door (23); Bulkhead in described cavity is also provided with seismic mass (20).
7. molybdenum oxide nanoparticles production equipment as claimed in claim 6, is characterized in that: described gasification unit also comprises the second gas blower (27) for being blown into gas (26) in the cavity in vapourizing furnace, the negative pressure gas blower (33) for being extracted out by the state molybdenum oxide nanoparticles (8) that gasifies in cavity; Described second gas blower (27) is communicated with via the pipeline of correspondence is corresponding with described inlet mouth (36); Described negative pressure gas blower (33) correspondence is arranged on the collection tube between described vapourizing furnace and described manifold trunk;
Described feeding unit comprises hopper (29), spiral feeding cylinder (31), the bottom surface (30) of described hopper (29) is the plane tilted, and the least significant end place correspondence of sidewall in this hopper (29), bottom surface offers discharge gate, the feed end of described spiral feeding cylinder (31) is corresponding with described discharge gate to be communicated with, and the discharge end of this spiral feeding cylinder (31) is corresponding with described opening for feed to be communicated with;
High temperature-resistant coating material (34) is also coated with in the furnace roof inside of described vapourizing furnace.
8. use molybdenum oxide nanoparticles production equipment as claimed in claim 7 to produce a method for molybdenum oxide nanoparticles, it is characterized in that: it comprises the following steps:
A. the temperature in vapourizing furnace is risen between 1150 DEG C to 1210 DEG C;
B. the second gas blower (27), negative pressure gas blower (33), gas blower (25), vacuum fan (24) is opened successively;
C. open valve, make hardening liquid export ejection by the end of quench fluid tube;
D. in vapourizing furnace, send into the persursor material of molybdenum oxide nanoparticles.
9. as claimed in claim 8 method of producing molybdenum oxide nanoparticles, is characterized in that: carry out step (d) front temperature in vapourizing furnace should be remained on 1150 DEG C to 1210 DEG C between continue 8-10 minute;
The pressure of the end of quench fluid tube outlet ejection hardening liquid should be remained on 4.0-5.3Pa when carrying out step (c);
The pumping capacity of described vacuum fan (24) remains on 1000-1200 L/min;
Persursor material inputs in vapourizing furnace with the amount of 250-300Kg/ hour by described feeding unit.
10. method of producing molybdenum oxide nanoparticles as claimed in claim 8, is characterized in that: described hardening liquid is liquid nitrogen; The persursor material of described molybdenum oxide nanoparticles is molybdic oxide powder.
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| CN104495933B (en) | 2016-05-18 |
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