CN203525703U - Nanopowder material preparation system - Google Patents
Nanopowder material preparation system Download PDFInfo
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- CN203525703U CN203525703U CN201320596595.2U CN201320596595U CN203525703U CN 203525703 U CN203525703 U CN 203525703U CN 201320596595 U CN201320596595 U CN 201320596595U CN 203525703 U CN203525703 U CN 203525703U
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Abstract
The utility model relates to the technical field of nanopowder material production equipment, and in particular relates to a nanopowder material preparation system. The nanopowder material preparation system comprises a low-temperature reaction kettle, a horizontal centrifuge, a high-temperature hydrothermal reaction kettle, a centrifugal spray dyer, a rotary calcination kiln and packaging equipment which are sequentially connected, wherein the high-temperature hydrothermal reaction kettle comprises an inner barrel body; a jacket barrel body is arranged at the outer layer of the inner barrel body; a plurality of first guide plates are arranged between the inner barrel body and the jacket barrel body and form spiral channels between the inner barrel body and the jacket barrel body; a plurality of third guide plates are arranged on a stirring device; a spiral heating coil pipe is arranged in a kettle body. As the nanopowder material preparation system is used, the requirement on the equipment in a production process is decreased; a nanopowder material with high performance and high purity can be obtained; the whole production process is safe and environment-friendly.
Description
Technical field
The utility model relates to nano-powder material production equipment technical field, refers in particular to a kind of nano-powder material preparation system.
Background technology
The new material of the crystallite dimension that nano material refers to constituent material within the scope of 1～100nm.The size range of nano material is between Macrocosm and microcosm, make it at aspects such as catalysis, photoelectricity, magnetic, mechanics, show many special physics and chemistry performances, there are many important using values, can be widely used in the fields such as electronics and communication, biology, the energy, process industry, auto industry, aerospace, chemical industry, new material, environmental protection.
Nano-powder is the core of nano material, and the method for preparing at present nano-powder mainly contains Physical and chemical method, adopts Physical to prepare nano-powder, particle diameter distributes wide, and particle size is uncontrollable, and shape of particle changes greatly, purity is low, is not suitable for large-scale production high-performance nano powder body material.Chemical method mainly contains vapour deposition process, the precipitation method, hydrothermal synthesis method, sol-gal process, microemulsion method etc.Wherein, vapour deposition process requires highly to equipment, and cost is large; Sol-gal process and microemulsion method are seriously polluted, and the product purity obtaining is low, and particle diameter is uncontrollable; Although precipitation method production process is simple, low for equipment requirements, the product purity obtaining is not high, and particle diameter is difficult to be effectively controlled; Hydro-thermal method can access that purity is high, narrow diameter distribution, the controlled product of particle diameter, but course of reaction need under the environment of HTHP, carry out, higher to equipment requirement, there is certain danger in production process.
At present nanometer technology belongs to frontier nature technology, and correlation technique and technique is in development, and the nano-powder material production system of prior art is not only to the having relatively high expectations of equipment, and performance and the purity of the nano-powder material of preparing are all undesirable.
Summary of the invention
The purpose of this utility model is to provide a kind of nano-powder material preparation system for the deficiencies in the prior art, can reduce the requirement to equipment in production process, can obtain again high-performance, highly purified nano-powder material, and whole production process safety and environmental protection.
For achieving the above object, a kind of nano-powder material preparation system of the present utility model, comprise low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove and packaging facilities, described low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove are connected successively with packaging facilities;
Described high temperature hydrothermal reaction kettle, comprise inner barrel, the skin of described inner barrel is provided with jacket cylinder, the top of described inner barrel is connected with kettle cover, the kettle of described inner barrel and kettle cover anabolic reaction still, the inside of described kettle is provided with agitating device, is provided with some the first deflectors between described inner barrel and jacket cylinder, described the first deflector is coiled between inner barrel and jacket cylinder twist, and described the first deflector forms spirality channel between inner barrel and jacket cylinder;
The body wall of described inner barrel is provided with some the second deflectors vertically;
The shaft of described agitating device is provided with some articles of the 3rd deflectors vertically;
The inside of described kettle is also provided with heat(ing) coil, and described heat(ing) coil coils the inside in kettle twist.
As preferably, described heat(ing) coil comprises internal layer heat(ing) coil and outer heat(ing) coil, and described internal layer heat(ing) coil is positioned at the top of kettle and is close to shaft, and described outer heat(ing) coil is positioned at the inside of kettle and is close to the inwall of inner barrel.
As preferably, described horizontal centrifuge comprises support, casing, rotary drum, auger conveyor and speed changer, described casing is arranged at the top of described support, described rotary drum is arranged at the inner chamber of described casing, described auger conveyor is horizontally placed on the inside of described rotary drum, described speed changer and described auger conveyor are coupling, described auger conveyor offers product distribution mouth, the end of described rotary drum offers solid discharging opening, and the distance of described product distribution mouth and described solid discharging opening is 650mm-800mm.
As preferably, described centrifugal spray drier, described centrifugal spray drier, comprise pedestal, casing, motor, speed changer, main shaft, material separating disc and atomizing disk, described casing is arranged at the below of pedestal and is fixedly connected with pedestal, speed changer is fixedly installed in the top of pedestal, top and motor output shaft that motor is arranged at speed changer are connected with speed changer, main shaft is arranged in casing and is connected with speed changer, material separating disc is sheathed on the lateral surface of main shaft, it is characterized in that: described atomizing disk comprises disk body, the diameter of this disk body is 150mm, the thickness of disk body is 15mm, the perisporium of disk body evenly offers some each and every one spray holes, the middle part of disk body offers a feed well, the external diameter of this feed well is 60mm, the degree of depth of feed well is 10mm, described spray holes communicates with feed well, and the middle part of feed well offers a taper hole, and atomizing disk is socketed on the lateral surface of main shaft by this taper hole, and feed well communicates with the outlet of material separating disc.
As preferably, described calcination rotary kiln stove, comprise furnace body support, described furnace body support is provided with revolving cylinder, the front end of described revolving cylinder is provided with feed arrangement, the rear end of described revolving cylinder is provided with drawing mechanism, described furnace body support is provided with drive unit, described drive unit is connected with revolving cylinder and drives revolving cylinder to rotate on furnace body support, described revolving cylinder is arranged at described furnace body support from front end is downward-sloping toward rear end, and the inwall of described revolving cylinder is placed with some material toggling gussets vertically; The middle part of described revolving cylinder is set to high-temperature calcination section, and described high-temperature calcination section is provided with heater.
As preferably, the quantity of described the first deflector is 4.
As preferably, described auger conveyor comprises cylinder and some helical blades, and described some helical blades are distributed in the surface of described cylinder, and the pitch of adjacent helical blade all equates.
As preferably, described rotary drum comprises cylinder rotary drum and circular cone rotary drum, and described circular cone rotary drum and described cylinder rotary drum are one-body molded, and described solid discharging opening is opened in the end of described circular cone rotary drum.
As preferably, the quantity of described material toggling gusset is eight, and eight material toggling gussets are evenly arranged in the inwall of the high-temperature calcination section of revolving cylinder.
As preferably, between described centrifugal spray drier and calcination rotary kiln stove, be connected with the first airslide disintegrating mill, between described calcination rotary kiln stove and packaging facilities, be connected with the second airslide disintegrating mill.
The beneficial effects of the utility model: a kind of nano-powder material preparation system, comprise low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove and packaging facilities, described low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove are connected successively with packaging facilities; This nano-powder material preparation system can reduce the requirement to equipment in production process, can obtain again high-performance, highly purified nano-powder material, and whole production process safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is equipment block diagram of the present invention.
Fig. 2 is process chart of the present invention.
Fig. 3 is the structural representation of horizontal centrifuge of the present invention.
Fig. 4 be high temperature hydrothermal reaction kettle of the present invention partly cut open schematic diagram.
Fig. 5 is the structural representation of jacket cylinder of the present invention inside.
Fig. 6 be centrifugal spray drier of the present invention partly cut open schematic diagram.
Fig. 7 is the structural representation of atomizing disk of the present invention.
Fig. 8 is the Section View along A-A line in Fig. 7.
Fig. 9 is the structural representation of calcination rotary kiln stove of the present invention.
Figure 10 is the Section View along B-B line in Fig. 9.
Figure 11 is the process chart after increase airslide disintegrating mill of the present invention.
Reference numeral comprises:
11-support, 12-casing, 13-rotary drum, 131-cylinder rotary drum
132-circular cone rotary drum, 14-auger conveyor, 141-cylinder, 142-helical blade
15-speed change gear, 16-product distribution mouth, 17-solid discharging opening, 18-solid phase is collected feed bin
19-liquid phase is collected feed bin 20-leakage fluid dram 21-liquid level adjustment sheet 22-bearing block 31-inner barrel
32-jacket cylinder, 321-the first deflector 33-kettle cover 34-agitating device 341-upper strata the 3rd deflector
342-middle level the 3rd water conservancy diversion 343-lower floor the 3rd deflector 35-internal layer heat(ing) coil 36-outer heat(ing) coil 371-upper strata stirrer paddle 372-middle level stirrer paddle 373-lower floor stirrer paddle 41-pedestal 42-housing 43-motor 44-speed changer 45-main shaft 46-material separating disc 47-atomizing disk
48-feed pipe, 49-driven shaft, 50-shaft coupling 51-driven bearing 52-oil tank
53-Lower shaft sleeve, 54-Upper shaft sleeve, 55-upper bearing (metal), 56-intermediate bearing, 57-floating bearing
58-enlarged diameter section 59-flexible reduced diameter section 60-disk body, 61-nut, 62-spray holes, 63-feed well
64-taper hole, 71-furnace body support, 7 2-revolving cylinder, 721-material toggling gusset, 722-high-temperature calcination section
73-feed arrangement, 74-drawing mechanism, 75-drive unit the 8-the second deflector.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1.
As shown in Figure 1 to Figure 2, a kind of nano-powder material preparation system of the present invention, comprise low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove and packaging facilities, described low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove are connected successively with packaging facilities.Before producing nano-powder material, need to carry out the preparation of raw material, the raw material preparing is positioned over to low-temp reaction still and carries out precipitation reaction, after reaction, form slurry.Slurry is positioned over to horizontal centrifuge, and horizontal centrifuge carries out the separated of solid phase and liquid phase to slurry, and the solid phase of horizontal centrifuge collects feed bin 18 and liquid phase collection feed bin 19 is convenient to solid phase and the liquid phase that classification recovery centrifugation goes out.The concentrated slurry of solid phase need wash, and the concentrated slurry after washing enters second batch; Do not wash complete concentrated slurry and enter agitator, further after washing, return to horizontal centrifuge and carry out again solid, liquid and be separated.After concentrated slurry second batch, enter high temperature hydrothermal reaction kettle and react, obtain nano pulp.Nano pulp enters centrifugal spray drier and carries out Separation of Solid and Liquid, and nano-powder and water in nano pulp are separated, and nano-powder is calcined through calcination rotary kiln stove again, obtains crystal formation standard, nano-powder that shape is consistent, can pack processing.
As shown in Figure 3, described horizontal centrifuge, comprise support 11, casing 12, rotary drum 13, auger conveyor 14 and speed change gear 15, described casing 12 is arranged at the top of described support 11, described rotary drum 13 is arranged at the inner chamber of described casing 12, described auger conveyor 14 is horizontally placed on the inside of described rotary drum 13, described speed change gear 15 is connected with described auger conveyor 14, and described rotary drum 13 is by the raw material of following mass percent: 5%-6% chromium, 2%-3% titanium, 1%-2% cobalt and the spun casting of 89%-92% dual phase steel form.
In the present embodiment, described auger conveyor 14 comprises cylinder 141 and some helical blades 142, and described some helical blades 142 are distributed in the surface of described cylinder 141, and the pitch of adjacent helical blade 142 all equates.Helical blade 142 is convenient to push sediment, by some helical blade 142 uniform pitch be arranged at the surface of cylinder 141, be conducive to helical blade 142 and evenly push sediment, avoid sediment local accumulation or locally acutely stirred, be more conducive to steady and continuous and push sediment, good separating effect.
In the present embodiment, described auger conveyor 14 also comprises the surperficial product distribution mouth 16 that is opened in described cylinder 141, the end of described rotary drum 13 offers solid discharging opening 17, and described product distribution mouth 16 is 650mm-800mm with the distance of described solid discharging opening 17.Raw material is entered the inside of auger conveyor 14 by feed end (as the left end of Fig. 3), by product distribution mouth 16, flow out the rotary drum 13 that enters High Rotation Speed again, and by High Rotation Speed, the nano-powder that proportion is slightly heavy, gravity against centrifugal generation, sidewall direction to rotary drum 13 moves, when the beds of precipitation are moved to realize Separation of Solid and Liquid by the helical blade 142 of auger conveyor 14 to solid discharging opening 17 during to certain thickness.Therefore, product distribution mouth 16 and the distance of solid discharging opening 17 are increased to 650mm-800mm by original 600mm, the product distribution mouth 16 of auger conveyor 14 has been moved to 50mm-200mm to long-range (in the other direction) of solid discharging opening 17, can increase the time of staying of material in rotary drum 13, improved the separating degree of nanopowder, and because product distribution mouth 16 and the distance of solid discharging opening 17 increase, solid phase material its activity space from product distribution mouth 16 draws off becomes large, can avoid solid phase material to be piled up in product distribution mouth 16, be more conducive to separation.
In the present embodiment, described rotary drum 13 comprises cylinder rotary drum 131 and circular cone rotary drum 132, and described circular cone rotary drum 132 and described cylinder rotary drum 131 are one-body molded, and described solid discharging opening 17 is opened in the end of described circular cone rotary drum 132.Cylinder rotary drum 131 is conducive to liquid phase clarification, circular cone rotary drum 132 is conducive to solid phase dehydration, rotary drum 13 therefore of the present invention adopts the combination of cylinder rotary drum 131 and circular cone rotary drum 132, has had the advantage that is beneficial to liquid phase clarification and solid phase dehydration concurrently, has further improved separating effect.
In the present embodiment, described casing 12 is provided with solid phase and collects feed bin 18 and liquid phase collection feed bin 19, and described solid phase is collected the below that feed bin 18 is arranged at described solid discharging opening 17, and described liquid phase is collected the tail end that feed bin 19 is arranged at described cylinder rotary drum 131.Solid phase collects feed bin 18 and liquid phase collection feed bin 19 is convenient to solid phase and the liquid phase that classification recovery centrifugation goes out, and solid phase is collected feed bin 18 and liquid phase is collected the end that feed bin 19 lays respectively at circular cone rotary drum 132 and cylinder rotary drum 131, the time that material stops in rotary drum 13 is longer, and solid-liquid separation effect is remarkable.
In the present embodiment, the tail end of described cylinder rotary drum 131 offers leakage fluid dram 20, and described leakage fluid dram 20 is arranged at the top that described liquid phase is collected feed bin 19, in described leakage fluid dram 20, is provided with liquid level adjustment sheet 21.By regulating the height of liquid level adjustment sheet 21, the size of adjustable leakage fluid dram 20, thus the flow velocity of liquid phase controlled, reach the degree of depth that changes the liquid pool that the interior liquid phase of rotary drum 13 forms, regulate rotary drum 13 resistance that liquid phase is brought when rotated, make horizontal centrifugal function there is good Technological adaptability.
In the present embodiment, the inner surface of described circular cone rotary drum 132 is provided with some ribs.Because circular cone rotary drum 132 is mainly used in the centrifugal dehydration of solid phase material; surface arranges the surface that some ribs make circular cone rotary drum 132 and forms closely knit protective layer within it; can reduce the wearing and tearing of solid phase material to rotary drum 13, and prevent that solid phase material from skidding on rotary drum 13, is beneficial to helical feed.
In the present embodiment, the both sides of described casing 12 are provided with bearing block 22.In the centrifugation of nano suspending liquid, the rotating speed of rotary drum 13, up to more than 6000r/min, carrys out spring bearing with two bearing blocks 22, is beneficial to the balance that keeps operation.
As shown in Fig. 4 to Fig. 5, described high temperature hydrothermal reaction kettle, comprise inner barrel 31, the skin of described inner barrel 31 is provided with jacket cylinder 32, the top of described inner barrel 31 is connected with kettle cover 33, the kettle of described inner barrel 31 and kettle cover 33 anabolic reaction stills, the inside of described kettle is provided with agitating device 34, between described inner barrel 31 and jacket cylinder 32, be provided with some the first deflectors 321, described the first deflector 321 is coiled between inner barrel 31 and jacket cylinder 32 twist, described the first deflector 321 forms spirality channel between inner barrel 31 and jacket cylinder 32, the body wall of described inner barrel 31 is provided with some the second deflectors 8 vertically, the shaft of described agitating device 34 is provided with some articles of the 3rd deflectors vertically, the inside of described kettle is also provided with heat(ing) coil, and described heat(ing) coil coils the inside in kettle twist, described heat(ing) coil comprises internal layer heat(ing) coil 35 and outer heat(ing) coil 36, and described internal layer heat(ing) coil 35 is positioned at the top of kettle and is close to shaft, and described outer heat(ing) coil 36 is positioned at the inside of kettle and is close to the inwall of inner barrel 31.
In spirality channel, pass into conduction oil, by the guide functions of the first deflector 321, the number of described first deflector 21 of the present embodiment is 4, spirality is coiled between inner barrel 31 and jacket cylinder 32, between the first deflector 321, form each other spirality channel, electric pump is evacuated to conduction oil the porch of spirality channel, the entrance of spirality channel is communicated with 4 spirality channels simultaneously, conduction oil is noted between inner barrel 31 and jacket cylinder 32 along 4 spirality channels simultaneously, then simultaneously from the outlet of spirality channel out, reduce the temperature drop of conduction oil as far as possible, make the temperature of liquid in kettle even.
The body wall of inner barrel 31 is provided with some the second deflectors 8 vertically, and as preferably, the quantity of the second deflector 8 is 12, between 12 the second deflectors 8, is the body wall that 30 degree are uniformly distributed in inner barrel 31.The 3rd deflector that shaft also arranges vertically, when stirrer paddle stirring drives the interior liquid of kettle to rotate, liquid knockout the second deflector 8 in kettle, the interior liquid of kettle is vortex and turns to, and has changed the flow regime of liquid in kettle.
The heat(ing) coil that the inside of kettle arranges, internal layer heat(ing) coil 35 and outer heat(ing) coil 36 make the interior fluid temperature of kettle evenly and heat fast.Heat(ing) coil echoes mutually, matches with the mode of heating of jacket cylinder 32, flow regime and the reactiveness of reactor liquid have been improved greatly, originally wanting the reaction time of nearly 3 hours to shorten to 1 hour 20 minutes, make the crystal formation state of nano-powder and uniformity coefficient have good improvement.
Stirrer paddle on the shaft of the present embodiment divides upper, middle and lower-ranking setting, described the 3rd deflector divides upper, middle and lower-ranking to be arranged at shaft equally, upper strata the 3rd deflector 341 is arranged at the top of upper strata stirrer paddle 371, middle level the 3rd deflector 342 is arranged between upper strata stirrer paddle 371 and middle level stirrer paddle 372, and lower floor's the 3rd deflector 343 is arranged between middle level stirrer paddle 372He lower floor stirrer paddle 373.Three layers of stirrer paddle in kettle, stir fully reactor liquid, improve the reaction rate of reactor liquid.
As preferably, the quantity of described first deflector 321 of the present embodiment is 4, the quantity of each layer the 3rd deflector is 4, very large effect has been played in improvement to the mass-and heat-transfer situation of reactor, changed the flow regime of liquid in reactor, improved the quality of nano-powder, also made the reaction time shorten more than 50%.
As shown in Figure 6 to 8, described centrifugal spray drier, comprise pedestal 41, housing 42, motor 43, speed changer 44, main shaft 45, material separating disc 46 and atomizing disk 47, described housing 42 is arranged at the below of pedestal 41 and is fixedly connected with pedestal 41, speed changer 44 is fixedly installed in the top of pedestal 41, top and motor 43 output shafts that motor 43 is arranged at speed changer 44 are connected with speed changer 44, main shaft 45 is arranged in housing 42 and is connected with speed changer 44, material separating disc 46 is sheathed on the lateral surface of main shaft 45, described atomizing disk 47 comprises disk body 60, the diameter of this disk body 60 is 150mm, the thickness of disk body 60 is 15mm, the perisporium of disk body 60 evenly offers several spray holes 62, the middle part of disk body 60 offers a feed well 63, the external diameter of this feed well 63 is 60mm, the degree of depth of feed well 63 is 10mm, described spray holes 62 communicates with feed well 63, and feed well 63 center offers a taper hole 64, and atomizing disk 47 is socketed on the lateral surface of main shaft 45 by this taper hole 64, and feed well 63 communicates with the outlet of material separating disc 46.
When the present invention works, motor 43 drives and passes through the rotating speed of speed changer 44 control main shafts 45, main shaft 45 rotates and drives atomizing disk 47 High Rotation Speeds that are socketed on main shaft 45 lateral surfaces, simultaneously, nano suspending liquid is in material separating disc 46 enters atomizing disk 47, the atomizing disk 47 of High Rotation Speed can keep turn/min of turn 15000/min-18000 of rotating speed under the effect of speed changer 44, thereby the nano suspending liquid that makes to enter in feed well 63 is thrown away by spray holes 62 by powerful centrifugal force, because the perisporium of disk body 60 evenly offers several spray holes 62, the diameter A of disk body 60 is 150mm, thickness H is 15mm, the diameter a of feed well 63 is 60mm, degree of depth h is 10mm, the design of disk body 60 and the above-mentioned specific dimensions of feed well 63 employing can be so that atomizing disk 47 produces powerful centrifugal force when High Rotation Speed, nano suspending liquid throws away from several uniform spray holes 62, thereby formed the droplet of superfine, nano-powder in the ultra-fine droplet of nano suspending liquid is separated fast with water, improve the production intensity of subsequent handling, reduce energy consumption, thereby the object of enhancing productivity.
Water in the droplet of superfine temperature in drying tower reaches flash distillation immediately separated with nanoparticle under the environment of 180 ℃, thereby has reached the object that nano particle is separated from nano suspending liquid.
Preferably, described disk body 60 is wear-resistant ceramic disk body, and it has extremely strong anti-wear performance, can avoid the phenomenon that mist droplet particle size is inhomogeneous or particle diameter is excessive that makes spray holes 62 wearing and tearing cause atomizing disk 47 to throw away due to long-term work.
Preferably, described spray holes 62 is eight, eight spray holes 62 evenly arrange, while making nano suspending liquid enter into feed well 63, under the powerful centrifugal force producing at disk body 60 High Rotation Speeds, from eight spray holes 62, throw away equably, thereby the droplet of formation superfine guarantees that atomizing effect of the present invention is better.
In the present embodiment, the bottom of described main shaft 45 is bolted with for locking the nut 61 of atomizing disk 47.The main shaft 45 of High Rotation Speed drives atomizing disk 47 High Rotation Speeds, for guaranteeing that atomizing disk 47 is at when work High Rotation Speed stably, prevent that atomizing disk 47 and being connected of main shaft 45 from producing loosening and causing atomizing effect not good, or atomizing disk 47 comes off and flies out, and cause industrial accident, therefore, the nut 61 of atomizing disk 47 is locked in the bottom of main shaft 45 by being spirally connected one, further make atomizing disk 47 be connected with main shaft 45 is stable, guarantee that the present invention can produce good atomizing effect in the course of the work, and can prevent the generation of security incident.
In the present embodiment, described centrifugal spray drier also comprises feed pipe 48, and the top of this feed pipe 48 is passed described pedestal 41 and is fixed on pedestal 41, and the bottom of this feed pipe 48 and material separating disc 46 are connected.Arranging of feed pipe 48 can guarantee that nano suspending liquid material is transported to material separating disc 46 easily and safely, through the outlet of material separating disc 46, be delivered to again the feed well 63 of atomizing disk 47, thereby nano suspending liquid material is carried out to high speed centrifugation atomization, feed pipe 48 reasonable in design, practicality is very strong.
In the present embodiment, described centrifugal spray drier also comprises driven shaft 49, shaft coupling 50 and driven bearing 51, and the upper end of described driven shaft 49 is connected with motor 43 output shafts by shaft coupling 50, and the lower end of driven shaft 49 is connected with speed changer 44 by driven bearing 51.The effect of shaft coupling 50 is for connecting motor 43 output shafts and driven shaft 49, thereby motor 43 output shafts and driven shaft 49 can be rotated jointly with transmitting torque, in addition, in the power transmission of High Rotation Speed, it is the effect of dynamic property that shaft coupling 50 also has buffering, vibration damping and raising axle; Driven bearing 51 is for fixing driven shaft 49, and guarantees that driven shaft 49 can realize rotation, thereby controls the movement axially and radially of driven shaft 49.
In the present embodiment, be provided with oil tank 52 and Lower shaft sleeve 53 in described housing 42, described pedestal 41 middle parts are fixedly installed Upper shaft sleeve 54; The top of described Upper shaft sleeve 54 is fixedly connected with speed changer 44, described oil tank 52 is arranged at the below of Upper shaft sleeve 54 and is fixedly connected with Upper shaft sleeve 54, described Lower shaft sleeve 53 is arranged at the below of oil tank 52 and is fixedly connected with oil tank 52, and described material separating disc 46 is arranged at the outside of Lower shaft sleeve 53 and is fixedly connected with Lower shaft sleeve 53; Described main shaft 45 is comprised of the enlarged diameter section 58 on top and the flexible reduced diameter section 59 of bottom; The two ends of the enlarged diameter section 58 of this main shaft 45 are installed in the axis hole of Upper shaft sleeve 54 by upper bearing (metal) 55 and intermediate bearing 56 respectively, and the lower end of the flexible reduced diameter section 59 of this main shaft 45 is installed in the axis hole of Lower shaft sleeve 53 by floating bearing 57.The effect that is provided for main shaft 45 to play axial location of Upper shaft sleeve 54 and Lower shaft sleeve 53, wherein, 52 of oil tanks provide lubricating oil to main shaft 45; In addition, the long-term high speed rotary motion due to main shaft 45, will inevitably produce larger frictional force, even if Upper shaft sleeve 54 and Lower shaft sleeve 53 cause wearing and tearing under the effect of frictional force, is also convenient to change; In addition, main shaft 45 is because rotating speed is exceedingly fast, for preventing that rotating speed is exceedingly fast, produce powerful vibration force and cause irregular shake to being sheathed on the atomizing disk 47 of main shaft 45,45, main shaft of the present invention is comprised of the enlarged diameter section 58 on top and the flexible reduced diameter section 59 of bottom, flexible reduced diameter section 59 is installed in the axis hole of Lower shaft sleeve 53 by floating bearing 57, during work, the vibration force producing in the time of effectively eliminating enlarged diameter section 58 High Rotation Speed of main shaft 45, thereby make the rotating speed of atomizing disk 47 more steady, atomizing effect is better.
As shown in Fig. 9 to Figure 10, described calcination rotary kiln stove, comprise furnace body support 71, described furnace body support 71 is provided with revolving cylinder 72, the front end of described revolving cylinder 72 is provided with feed arrangement 73, the rear end of described revolving cylinder 72 is provided with drawing mechanism 74, described furnace body support 71 is provided with drive unit 75, described drive unit 75 is connected with revolving cylinder 72 and drives revolving cylinder 72 to rotate on furnace body support 71, described revolving cylinder 72 is arranged at described furnace body support 71 from front end is downward-sloping toward rear end, the inwall of described revolving cylinder 72 is placed with some material toggling gussets 721 vertically,
The middle part of described revolving cylinder 72 is set to high-temperature calcination section 722, described high-temperature calcination section 722 is provided with heater, heater heats the high-temperature calcination section 722 of revolving cylinder 72, and the heater of the present embodiment is heated to 700 degrees Celsius to high-temperature calcination section 722.
As preferably, the quantity of the material toggling gusset 721 of the present embodiment is 8, and eight material toggling gussets 721 are evenly arranged in the inwall of the high-temperature calcination section 722 of revolving cylinder 72.Nano-powder after air-flow crushing also contains a certain amount of crystallization water, and nano-powder is entered the inside of revolving cylinder 72 by feed arrangement 73, and the revolving cylinder 72 being obliquely installed makes nano-powder in the process of upset, and past drawing mechanism 74 directions are gradually advanced.When nano-powder enters high-temperature calcination section 722, material toggling gusset 721, with revolving cylinder 72 rotations, in material toggling gusset 721 rotary courses is broken up nano-powder rolling, improves nano-powder in the distribution situation of revolving cylinder 72 rotary courses.Nano-powder is ceaselessly upset in revolving cylinder 72, and the later stage is sent by drawing mechanism 74 after supercooling.
As preferably, the angle of inclination of the revolving cylinder 72 of the present embodiment is 5 degree, nano-powder passes through preheating section, high-temperature calcination section 722 and cooling section successively, make nano-powder in the sufficiently long time of the interior stop of revolving cylinder 72, stop general about 1 hour, nano-powder is calcined fully, departed from the crystallization water of nano-powder, make the transparency of nano-powder reach 85% ~ 90%.
The quantity of the material toggling gusset 721 of the present embodiment is 8, eight material toggling gussets 721 are evenly arranged in the inwall of the high-temperature calcination section 722 of revolving cylinder 72, the length of described high-temperature calcination section 722 equals the length of material toggling gusset 721, and as preferably, the length of described high-temperature calcination section 722 is 6 meters.Nano-powder is during through high-temperature calcination section 722, nano-powder can be fully scattered revolving cylinder 72 is interior, and be heated evenly, and meets the condition that nano-powder crystal formation reproduces, the crystal formation standard of the nano-powder after crystal formation reproduces, and shape is consistent.
Through a large amount of test of inventor, proportioning gained, for making the high-temperature calcination section 722 of revolving cylinder 72 can bear 1000 degrees Celsius and above temperature, described high-temperature calcination section 722 adopts two phase stainless steel spun casting to become stock and forms through forging; In two phase stainless steel spun casting process, also increased by 0.2% ~ 0.8%(mass percent) tungsten and 0.1% ~ 0.6%(mass percent) cobalt; As optimal proportion, it is 0.5% that the present embodiment is selected the mass percent of tungsten, and the mass percent of cobalt is 0.3%.Greatly improved intensity and the resistance to elevated temperatures of revolving cylinder 72, its temperature tolerance can reach 1200 degrees Celsius, meets the needed temperature requirement of calcining of producing nano-powder.
The heater of the present embodiment can be selected resistive heating device, by electric energy, heats, and it is more accurate that temperature is controlled, and uses convenient.
The outside of the described revolving cylinder 72 of the present embodiment is also provided with heat-insulation layer, reduces the heat loss of revolving cylinder 72, maintains the constant of revolving cylinder 72 inner each section of temperature.
Nano-powder material preparation system of the present invention, can reduce the requirement to equipment in production process, can obtain again high-performance, highly purified nano-powder material, and whole production process safety and environmental protection.
Embodiment 2.
As shown in figure 11, the difference of the present embodiment and embodiment 1 is to be connected with the first airslide disintegrating mill between described centrifugal spray drier and calcination rotary kiln stove, between described calcination rotary kiln stove and packaging facilities, is connected with the second airslide disintegrating mill; Centrifugal spray drier is separated with water by nano-powder, the nano-powder of atomized shape, nano-powder is in sedimentation, may there is the situation of bonding, now nano-powder is after the first airslide disintegrating mill is pulverized, nano-powder is broken up, again through the calcining of calcination rotary kiln stove, the moisture content of evaporation nano-powder, in calcination process, also may there is the situation of bonding in nano-powder, then after the second airslide disintegrating mill is pulverized, nano-powder is fully broken up, then the processing of packing.
The remainder of the present embodiment is identical with embodiment 1, repeats no more here.
Above content is only preferred embodiment of the present invention, for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, and this description should not be construed as limitation of the present invention.
Claims (10)
1. a nano-powder material preparation system, it is characterized in that: comprise low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove and packaging facilities, described low-temp reaction still, horizontal centrifuge, high temperature hydrothermal reaction kettle, centrifugal spray drier, calcination rotary kiln stove are connected successively with packaging facilities;
Described high temperature hydrothermal reaction kettle, comprise inner barrel, the skin of described inner barrel is provided with jacket cylinder, the top of described inner barrel is connected with kettle cover, the kettle of described inner barrel and kettle cover anabolic reaction still, the inside of described kettle is provided with agitating device, is provided with some the first deflectors between described inner barrel and jacket cylinder, described the first deflector is coiled between inner barrel and jacket cylinder twist, and described the first deflector forms spirality channel between inner barrel and jacket cylinder;
The body wall of described inner barrel is provided with some the second deflectors vertically;
The shaft of described agitating device is provided with some articles of the 3rd deflectors vertically;
The inside of described kettle is also provided with heat(ing) coil, and described heat(ing) coil coils the inside in kettle twist.
2. nano-powder material preparation system according to claim 1, it is characterized in that: described heat(ing) coil comprises internal layer heat(ing) coil and outer heat(ing) coil, described internal layer heat(ing) coil is positioned at the top of kettle and is close to shaft, and described outer heat(ing) coil is positioned at the inside of kettle and is close to the inwall of inner barrel.
3. nano-powder material preparation system according to claim 1, it is characterized in that: described horizontal centrifuge comprises support, casing, rotary drum, auger conveyor and speed changer, described casing is arranged at the top of described support, described rotary drum is arranged at the inner chamber of described casing, described auger conveyor is horizontally placed on the inside of described rotary drum, described speed changer and described auger conveyor are coupling, described auger conveyor offers product distribution mouth, the end of described rotary drum offers solid discharging opening, the distance of described product distribution mouth and described solid discharging opening is 650mm-800mm.
4. nano-powder material preparation system according to claim 1, it is characterized in that: described centrifugal spray drier, comprise pedestal, casing, motor, speed changer, main shaft, material separating disc and atomizing disk, described casing is arranged at the below of pedestal and is fixedly connected with pedestal, speed changer is fixedly installed in the top of pedestal, top and motor output shaft that motor is arranged at speed changer are connected with speed changer, main shaft is arranged in casing and is connected with speed changer, material separating disc is sheathed on the lateral surface of main shaft, it is characterized in that: described atomizing disk comprises disk body, the diameter of this disk body is 150mm, the thickness of disk body is 15mm, the perisporium of disk body evenly offers some each and every one spray holes, the middle part of disk body offers a feed well, the external diameter of this feed well is 60mm, the degree of depth of feed well is 10mm, described spray holes communicates with feed well, and the middle part of feed well offers a taper hole, and atomizing disk is socketed on the lateral surface of main shaft by this taper hole, and feed well communicates with the outlet of material separating disc.
5. nano-powder material preparation system according to claim 1, it is characterized in that: described calcination rotary kiln stove, comprise furnace body support, described furnace body support is provided with revolving cylinder, the front end of described revolving cylinder is provided with feed arrangement, the rear end of described revolving cylinder is provided with drawing mechanism, described furnace body support is provided with drive unit, described drive unit is connected with revolving cylinder and drives revolving cylinder to rotate on furnace body support, described revolving cylinder is arranged at described furnace body support from front end is downward-sloping toward rear end, the inwall of described revolving cylinder is placed with some material toggling gussets vertically, the middle part of described revolving cylinder is set to high-temperature calcination section, and described high-temperature calcination section is provided with heater.
6. nano-powder material preparation system according to claim 2, is characterized in that: the quantity of described the first deflector is 4.
7. nano-powder material preparation system according to claim 3, is characterized in that: described auger conveyor comprises cylinder and some helical blades, and described some helical blades are distributed in the surface of described cylinder, and the pitch of adjacent helical blade all equates.
8. nano-powder material preparation system according to claim 3, it is characterized in that: described rotary drum comprises cylinder rotary drum and circular cone rotary drum, described circular cone rotary drum and described cylinder rotary drum are one-body molded, and described solid discharging opening is opened in the end of described circular cone rotary drum.
9. nano-powder material preparation system according to claim 5, is characterized in that: the quantity of described material toggling gusset is eight, and eight material toggling gussets are evenly arranged in the inwall of the high-temperature calcination section of revolving cylinder.
10. according to the nano-powder material preparation system described in claim 1 ~ 9 any one, it is characterized in that: between described centrifugal spray drier and calcination rotary kiln stove, be connected with the first airslide disintegrating mill, between described calcination rotary kiln stove and packaging facilities, be connected with the second airslide disintegrating mill.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320596595.2U CN203525703U (en) | 2013-01-31 | 2013-09-26 | Nanopowder material preparation system |
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| CN201320054985 | 2013-01-31 | ||
| CN201320054985.7 | 2013-01-31 | ||
| CN201320596595.2U CN203525703U (en) | 2013-01-31 | 2013-09-26 | Nanopowder material preparation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106423718A (en) * | 2016-11-24 | 2017-02-22 | 汕头大学 | Centrifugal machine for processing inner surfaces of pipes and with heating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106423718A (en) * | 2016-11-24 | 2017-02-22 | 汕头大学 | Centrifugal machine for processing inner surfaces of pipes and with heating device |
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