CN1929925A - High turbulence mill and its bi-negative pressure turbine - Google Patents
High turbulence mill and its bi-negative pressure turbine Download PDFInfo
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- CN1929925A CN1929925A CN200580008197.2A CN200580008197A CN1929925A CN 1929925 A CN1929925 A CN 1929925A CN 200580008197 A CN200580008197 A CN 200580008197A CN 1929925 A CN1929925 A CN 1929925A
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Abstract
The invention relates to a high turbulence mill for processing supermicro powder and nano materials, including a driving device provided on a base ; a hollow grinding chamber on which a stator guide toothed ring is secured ; a bi-negative pressure turbine rotatablely provided in the said grinding chamber ; a hopper for feeding material via a feed-in tube into the grinding chamber ; an outlet tube connected with the grinding chamber for transporting pulverized product ; and a controlling device for electrically operating and controlling the high turbulence miIl. When the especially designed bi-negative pressure turbine rotates at high speed by the driving of an electric shaft in the grinding chamber, high vortex and turbulence is formed in the grinding chamber, thereby generates gas-solid two phase current. By the high turbulence, materials are severely ground by themselves each other and generate severe collision and wear force, therefore materials are crashed effectively.
Description
High turbulence mill and its bi-negative pressure turbine technical field
It is used to manufacture ultrafine powder and the mechanical device of nano material the present invention relates to a kind of, espespecially a kind of " high turbulence mill " to various materials to be carried out to ultramicro grinding and its one kind " bi-negative pressure turbine " for the high turbulence mill.The high turbulence mill of the present invention cannot be only used for the leading-edge fields such as military project, space flight, and applied extensively in different industries, such as microelectronics, new medicine, new material, new energy and chemical industry, machinery, metallurgy, environmental protection, food, daily use chemicals relevant industries.Background technology
Ultrafine powder technology is referred to as cross-centennial new and high technology by domestic and international scientific and technological circle.
With the rapid development of science and technology, the research application of superfine material and nano material, has broad application prospects, to promoting industrial technological advancement to have extremely important effect.Superfine material is typically referred to as with thin powder by 1 micron, 0.1 micron is referred to as nano material with thin powder.
Superfine material（Submicron order）Technology of preparing, do not find there is the report of this respect both at home and abroad also at present, it was reported that superfine material is limited to a kind of bottleneck material between super-fine material and nano material, can be produced there is presently no technology of preparing.
The production equipment and technology of super-fine material mainly have at present：Mechanical impact crusher, airslide disintegrating mill and oscillating mill etc..The general character of these technical equipment is that broken mill Limit Grain Size can only achieve 5 microns.Report is relatively more at present for the technology of preparing of nano material, main to be prepared using chemical method, there is solid phase method, liquid phase method, vapor phase method and plasma method, laser method etc..Discussion separately is had been reported that, the nano material produced using chemical method often changes the physical property of material in itself, up to not
To the using effect of nano material, and agglomeration traits are difficult to solve, and low production efficiency, processing cost is expensive.It can only be produced at present in laboratory, it is impossible to realize industrialized production.
Superfine material（Sub-micron and nanoscale）It is the basic material of 21 century, is one of the focus of current high-tech area international competition.Can physics technology of preparing produce superfine material and nano material is a scientific research project across the epoch that current scientific and technological circle very thirst for and paid close attention to.Current countries in the world particularly industrially developed country, all input huge fund carries out the research and development of this respect every year for government.The content of the invention
In view of the technical problem of the present situation and presence of ultrafine powder material and nano materials research application at present, it is an object of the invention to provide one kind milling equipment more more advanced than prior art, it can efficiently produce required ultrafine powder and nano-powder.
To achieve these goals, the invention provides a kind of bi-negative pressure turbine, in high turbulence mill, it is characterised in that including：One leaf dish and the multiple blades for being arranged on two sides of the leaf dish, wherein the blade is uniformly distributed circumferentially sideways in each of the leaf dish, and rotation direction is identical, the blade positioned at one side of leaf dish circumferentially offsets one from another with the blade positioned at the leaf dish another side.
Bi-negative pressure turbine as described above, wherein, the outline of the blade is in throwing arc, and its cross section is in " L " shape, including a base portion and from the vertically extending flank of the base portion；Two screws are machined with the inside of the base portion of the blade, for the blade to be fixed on into the leaf dish by screw.
Bi-negative pressure turbine as described above, wherein, the outboard end of the base portion of the blade is formed with one first inclined-plane, and first inclined-plane and the angle of disk plane are 30 ° 60 °；
Bi-negative pressure turbine as described in book, wherein, a side end of the blade close to leaf dish center is formed with one second inclined-plane, and second inclined-plane and the angle of leaf dish plane are 45 ° 70 °.
Bi-negative pressure turbine as described above, wherein, the radially outer edge of the base portion of the blade and the basic circle of leaf dish coincide, and the radially inner edge of multiple blades is located on the circumference concentric with the basic circle；The horizontal inner edge of the blade and outer lateral edges are two sections of arcs with together circle center；So that arc is thrown in blade formation.Bi-negative pressure turbine as described above, wherein, the horizontal inner edge of the arc of the blade and the together circle center of outer lateral edges are determined by following manner：Intersection point by the vertical line at the center of leaf dish and the basic circle of leaf dish is the first intersection point, using leaf dish center as the center of circle, make arc using 0.25 ~ 0.35 times of leaf dish radius as radius, the arc is with being the second intersection point by intersection point leaf dish center and that the vertical line is formed into the RADIAL at 45 degree of angles, then respectively using first intersection point and the second intersection point as the center of circle, make arc by radius of the radius of leaf dish, the intersection point of two arcs is the together circle center.Bi-negative pressure turbine as described above, wherein, the bi-negative pressure turbine also has multiple impact tooth plates, and the impact tooth plate is located between two adjacent blades of leaf dish both sides in pairs.Bi-negative pressure turbine as described above, wherein the impact tooth plate include being formed with two mounting holes on an installation portion and a work department, installation portion, for the impact tooth plate to be fixed on into the leaf dish by screw；The working position is in the top of the installation portion, and it is integrally formed with the installation portion, and impact teeth is formed with the top of the work department, and the impact teeth is rectangular teeth, and the direction of tooth and the circumferencial direction of leaf dish are identical.Present invention also offers a kind of high turbulence mill using above-mentioned bi-negative pressure turbine, for processing super-fine powder, wherein, including：One drive device, is arranged on a base, including the motor being mutually coupled and a drive shaft；One hollow mill chamber, is set on the base, and a stator is fixedly installed on the internal perisporium of the mill chamber and is oriented to gear ring；One bi-negative pressure turbine, can be rotatably set in the mill chamber, and be driven by the drive device；One hopper, for being conveyed by a feed pipe into the mill chamber
Material；One discharge nozzle, is connected with the mill chamber, for exporting the product after crushing；And a control device, for carrying out electrical control to the high turbulence mill；When the bi-negative pressure turbine rotates at a high speed under the driving of the motor in the mill chamber, evoke vortex and turbulent flow in air and material that can be inside mill chamber, so as to form Dual-Phrase Distribution of Gas olid, material is oriented in stator in the presence of gear ring and high turbulence, strong autogenous grinding occurs each other, strong shock, shear force are produced simultaneously, so that material effectively be crushed.
A kind of high turbulence mill as described above, its mill chamber is water-cooled, and wherein mill chamber is divided into inside and outside two Room, and the mistress of the mill chamber is connected with a cyclic water tank.
A kind of high turbulence mill as described above, wherein, in addition to a screw input feeder, the two ends of the screw input feeder are connected with the hopper and feed pipe respectively, for conveying material to the mill chamber under the driving of a buncher.
A kind of high turbulence mill as described above, wherein, the other end of the discharge nozzle is connected with a ball adapter, the ball coupling and cyclone feeder connection, the cyclone feeder and cloth bag collector connection, the cloth bag collector and air-introduced machine connection, the collection for completing product.
A kind of high turbulence mill as described above, wherein, the left and right sides of mill chamber is respectively provided with inner cover plate flange and outer cover plate flange, the center of the wherein inner cover plate flange of side is provided with pilot hole, the drive shaft of drive device is connected by the pilot hole with the bi-negative pressure turbine being arranged in mill chamber, and is fixed by a fastening bolt；On the left of this on inner cover plate flange, the position on the upper side of the pilot hole, charging aperture is also provided with, the feed pipe is connected to the charging aperture；The inner cover plate flange center position of opposite side is provided with discharge opening, and the discharge nozzle is connected to the discharge opening.
A kind of high turbulence mill as described above, wherein, the stator is oriented to the number of teeth of gear ring more than 50, and the flute profile indention of each tooth, and profile angle is 40 ° 50 °.
The turbulence mill of the present invention is that inventor utilizes double negative pressure of turbulent flow principle design, the turbine of double vortex, and the high turbulence motion produced when high speed rotates carrys out comminuting matter.The generation of high turbulence, is high strong vortice energy exchange, it is in high reynolds number（Re>1.5 X 105) under occur.Reynolds number in turbulence mill of the present invention has reached Re>6.6 X 105, can really produce high turbulence motion.
The characteristic of turbulent motion is scrambling, i.e., constitute random random motion by the whirlpool body that differs in size.Its most essential characteristic is " turbulence ", i.e., random pulsation.Its velocity field and pressure field is all random, not only to the time, and is random for space.Another heavy characteristic of turbulent motion is diffusivity.Because whirlpool body phase mutually mixes in turbulent flow, cause internal fluid energy exchange, momentum is transmitted to the small particle of momentum by the big particle of momentum, and the small particle of momentum influences the big particle of momentum again, as a result diffusion adds momentum, the transport of quality.
When pulverized object is in field of turbulent flow, Dual-Phrase Distribution of Gas olid is just constituted, the end energy obtained from bi-negative pressure turbine, by the effect of inertia of high speed rotation, micro cyclone is passed to by maelstrom step by step.Strong shock, autogenous grinding, shear force are produced during this complicated turbulence, so that material is effectively crushed.
Because the turbulent flow grinding machine achieves important breakthrough from grinding mechanism, it has double negative pressure, double vortex, high turbulent flow, the technical characteristic of high centrifugation.Thirst for solving so as to efficiently solve various countries up to now and crush industry specialists and seek assiduously, but fail to obtain the mechanical crushing problem of major progress all the time.It, which has, crushes energy-conservation, fineness ultra micro（Sub-micron）Good beneficial effect is required with environmental-protecting performance.
The high turbulence mill of the present invention is compared with existing more advanced airslide disintegrating mill, is 10 times of airflow milling with yield under power, energy consumption is only the 10% of airflow milling.Its broken mill energy ratio airslide disintegrating mill is higher by one times, and smashing fineness breaches submicron order, and particle mean size has reached nanoscale, and unexpected technique effect is achieved on quality and quantity.
The invention of high turbulence mill and test-manufacture successfully, be that China marches toward Physical, realize that industrialized production superfine material and nano material provide feasible approach.The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Figure explanation Figure 1A is the front view of the high turbulence mill according to the present invention；Figure 1B is the side view of the high turbulence mill according to the present invention；Fig. 2 is the structural representation of the bi-negative pressure turbine in high turbulence mill of the present invention:Fig. 3 is the sectional view along line A-A in Fig. 2；Fig. 4 is mounted in the view of the arc shaped blade on the turbine in Fig. 2；Fig. 5 is the sectional view along Fig. 4 line B-B；Fig. 6 is the C direction views of Fig. 4 blades；Fig. 7 is the view of impact tooth plate in Fig. 2；The side view for the impact tooth plate that Fig. 8 is Fig. 7；Fig. 9 is the assembling schematic diagram of the bi-negative pressure turbine in Fig. 1；The stator that Figure 10 is Fig. 1 is oriented to gear ring assembling schematic diagram.Wherein, drawing reference numeral is as follows：
Hopper 1 impacts tooth plate 20
The mill chamber 21 of cyclic water tank 2
The leaf dish 29 of buncher 3
The leaf dish basic circle 291 of feed pipe 4
The screw 151,152 of support 5
The base portion 153 of drive device 6
The flank 154 of support 7
The inclined-plane 155 of base 8 first
The inclined-plane 156 of discharge nozzle 9 second
The radially outer edge 157 of fastening bolt 10
The radially inner edge 158 of ball coupling 11
The outer lateral edges 159 of inner cover plate flange 12
The horizontal inner edge 160 of outer cover plate flange 13
The installation portion 210 of screw input feeder 14
The work department 220 of blade 15
The mounting hole 230,240 of bi-negative pressure turbine 16
Stator is oriented to gear ring 18
Embodiment
As shown in Figure 1A and 1B, it is a kind of high turbulence mill of the invention provided.The high turbulence mill is mainly made up of base 8, mill chamber 21, drive device 6, screw input feeder 14 and control device etc..Whole turbulence mill is in horizontal type.Drive device 6 is arranged on base 8 by support 7, it includes motor and the drive shaft being connected with the output shaft of the motor, in an embodiment of the present invention, the motor is preferably variable-frequency motor, the drive shaft is connected with the variable-frequency motor, for driving the bi-negative pressure turbine 16 inside setting mill chamber 21.
Screw input feeder 14 is arranged on base 8 by support 5, and above the side of mill chamber 21.The top of screw input feeder 14 is provided with hopper 1, for conveying material to be comminuted to the feeder 14.The screw input feeder 14 is driven by buncher 3.
Inside mill chamber 21, it is provided with bi-negative pressure turbine 16 and stator is oriented to gear ring 18.The bi-negative pressure turbine 16 is connected with the drive shaft of the drive device, in the mill chamber 21 under the driving of the drive shaft
Interior high-speed rotation.The concrete structure of the bi-negative pressure turbine 16 sees below described.The stator is oriented to the inner peripheral surface that gear ring 18 is fixedly installed on the mill chamber 21.
A cyclic water tank 2 is provided with above the side of the mill chamber.21 points of the mill chamber is inside and outside two Room, and the mistress of the mill chamber 21 is connected with the cyclic water tank 2.It so when the high turbulence mill works, can be cooled by the cyclic water tank 2 for the mill chamber, so as to avoid temperature-sensitive material because crushing temperature is too high, and influence the generation of its physical property variation phenomenon.
The left and right sides of mill chamber 21 is respectively provided with inner cover plate flange 12 and outer cover plate flange 13.The center of the wherein inner cover plate flange 12 in left side is provided with pilot hole, and the drive shaft of drive device 6 is connected by the pilot hole with the bi-negative pressure turbine 16 being arranged in mill chamber 21, and is fixed by fastening bolt 10.On the left of this on inner cover plate flange 12, the position on the upper side of the pilot hole, charging aperture is also provided with, a feed pipe 4 is connected to the screw input feeder 14 and the charging aperture.The center of right side outer cover plate flange 13 is provided with discharge opening, and a discharge nozzle 9 connects the discharge opening and the ball coupling 11 being arranged on outside mill chamber 21.Wherein, the outer cover plate flange 13 on the right side of this can be changed according to the particle diameter of required discharging, when discharge opening is larger, can obtain thicker product, while yield increases；When discharge opening is smaller, trickle product can be obtained, while yield reduction.
Ball coupling 11 and cyclone feeder（Not shown in figure）Connection, cyclone feeder and cloth bag collector（Not shown in figure）Connection, cloth bag collector and air-introduced machine（Not shown in figure）Connection, the collection for completing product.Because it belongs to prior art, it will not be repeated here.
Control device is mainly made up of electrical control cabinet and control panel, the output speed of startup, stopping and motor for controlling turbulence mill according to various situations.
As shown in Fig. 2 the bi-negative pressure turbine 16 of the present invention includes leaf dish 29 and the more blades 15 being assemblied in leaf dish 29.The blade is circumferentially equably assemblied in two sides of leaf dish, meanwhile, position
In the blade * of both sides, this mutually staggers.That is, the blade of leaf dish both sides is not symmetrical, but the certain distance that along the circumferential direction mutually staggered.In addition, in order to increase crushing effect, multi-disc impact tooth plate 20 can be also assembled in the leaf dish, to coordinate work done with the blade 15.The impact tooth plate 20 is assemblied in the position that leaf dish or so blade staggers, and is left and right symmetrically arranged.The impact tooth plate 20 and blade 15 are to be installed to bolt, nut, pad, spring washer, hexagon socket head cap screw in the leaf dish 29, while rotation direction is identical.As shown in Fig. 2 fan-shaped impact tooth plate 20 and blade 15 are respectively distributed in the left and right sides of leaf dish 29, so that the bi-negative pressure turbine reaches dynamic balancing.In the present embodiment, 8 groups of blades and impact tooth plate are provided with, that is to say, that 4 groups of blades and impact tooth plate are respectively arranged with the both sides of leaf dish 29.
As shown in Figure 4, Figure 5 and Figure 6, the profile of the blade 15 is in the hypsokinesis shape for throwing arc.And its cross section is " L " shape.The blade 15 includes a base portion 153 and along the flank 154 extended perpendicular to the direction of the base portion 153.Two holes 151 and 152 are machined with its base portion 153, for the blade 15 to be fixed on into the leaf dish 29 by screw.As shown in figure 5, the outside side end of the base portion 153 is formed as one first inclined-plane 155, the angle a of the inclined plane 155 and the plane of leaf dish 29 is 30 ° 60 °, preferably 45 °.And blade 15 forms one second inclined-plane 156 close to the side at leaf dish center 0, second inclined-plane 156 forms the one end at the close leaf dish center in the base portion 153 and flank 154.The angle β of itself and the plane of leaf dish 29 is 45 ° 70 °, preferably 60 °, as shown in Figure 6.
In addition, as shown in fig. 4 and fig. 2, the radially outer edge 157 of the base portion 153 of the blade 15 coincide with the basic circle 291 of leaf dish 29, the radially inner edge 158 of multiple blades is located on the circumference concentric with the basic circle 291；The horizontal inner edge 160 of the blade and outer lateral edges 159 are two sections of arcs with phase concentric.In one embodiment, in order that the blade that must be arranged in leaf dish, which has, throws arc, so that
The center of circle of the abrasion of reduction blade, the horizontal inner edge 160 and outer lateral edges 159 is determined as follows：As shown in Figure 4,0 is the center of leaf dish 29, intersection point by O vertical line and the basic circle 291 of leaf dish 29 is C, using O as the center of circle, be that radius makees arc 292 with 0.25 0.35 times of leaf dish radius, the arc 292 with by the center of circle 0, with straight line CO into the RADIAL at 45 degree of angles B points are met at, then respectively using B points and C points as the center of circle, make arc by radius of the radius of leaf dish, the intersection point of two arcs is the horizontal inner edge 160 and the common center of circle of outer lateral edges 159.
As shown in Figure 7 and Figure 8, impact tooth plate 20 includes an installation portion 210 and a work department 220.Installation portion 210 can have any shape, as long as the shape between the blade in leaf dish can be arranged on.As shown in Fig. 2 sector of the first embodiment of the installation portion for deformation, so that the profile in blade is corresponding.As shown in Figure 7 and Figure 8, the installation portion is that one end is semicircular rectangle.Two mounting holes 230,240 are formed with installation portion, for the impact tooth plate 20 to be fixed on into the leaf dish 29 by screw.The work department 220 is located at the top of the installation portion 210, and it is integrally formed or a separation member with the installation portion 210, is fixed by screws on the installation portion 210.In the embodiment in figs. 7 and 8, the lower end of work department 220 is formed with a dovetail groove, and a guide rail is formed with installation portion 210, consequently facilitating changing worn out work department.Impact teeth is formed with the top of the work department 220, the impact teeth is rectangular teeth, and the direction of tooth is identical with the circumferencial direction of leaf dish 29.
It extend into the drive shaft inside mill chamber, is then fastened with fastening bolt 10 for this pair of negative pressure impeller 16 is enclosed on as shown in figure 9, the double negative pressure impellers 16 assembled are arranged on into the installation process in mill chamber 21.So, double negative pressure impellers 16 will be under the driving of motor, in the inner rotation of mill chamber 21.
As shown in Figure 10, stator of the invention is oriented to gear ring 18 and is assembled on the inner peripheral surface of mill chamber 21.The number of teeth of stator guiding gear ring 18 more than 50.The flute profile indention of each tooth, profile angle is 40
° 〜50 ° .The internal perisporium assembling of the guiding gear ring 18 and mill chamber 21 is fixed.Its fixed form can be by the way of interference fit and/or key coordinate.
The course of work of the high turbulence mill of the present invention is described below.
Material enters mill chamber 21 by hopper 1, screw input feeder 14 by feed pipe 4.The logical driving bi-negative pressure turbine 16 of variable-frequency motor rotates it, produces negative pressure and is oriented to turbulent zone, the impulsive force that material is formed by high turbulent flow is hit rapidly, high speed shear and be crushed.
Because bi-negative pressure turbine 16 is assembled by left and right throwing arc hypsokinesis blade 15 and swallow-tail form impact tooth plate 20.Blade 15 forms swirl shape close to one end of sharf in scalene cone simultaneously, and double vortex are formd when high speed rotates, and double vortex generate double negative pressure again, and the generation of double negative pressure forms high-strength centrifugal force again.In the presence of the negative pressure, the powder being crushed in mill chamber 21 will not be spilt from the perforate of the flange plate of the mill chamber left and right sides, so as to improve the sealing property of the mill chamber.When pulverized solid material is in mill chamber 21 in high velocity turbulent flow, just constitute Dual-Phrase Distribution of Gas olid, the turbulence energy obtained from turbine 16, micro cyclone is passed to by effect of inertia step by step by maelstrom, material produces strong shock, autogenous grinding, shear force in this turbulent motion, so that material is effectively crushed.In addition, stator guiding gear ring 18 produces the guiding shearing force to material in mill chamber 21, powder occurs strong autogenous grinding in zigzag turbulent motion region, accelerates effective refinement of material each other.
When the micro mist of pulverized refinement, with the mitigation of micro mist proportion, centrifugation area is disengaged, centrifugation external zones is drifted in by the air inducing of discharge nozzle 9 suction feeding ball coupling 11, is reclaimed by cyclone feeder and cloth bag collector.
The size of particle diameter needed for finished product can be come any to adjust or to change the linear velocity of turbine ensure the precision of material with the method for adjustment air inducing size.
Industrial applicibility
The present invention beneficial effect that has the advantage that and produce compared with prior art is：
1st, with considerable energy-saving effect.
Tradition machinery milling equipment is to directly drive medium motion using mechanical energy come comminuting matter, and crush efficiency is low, high energy consumption.Airslide disintegrating mill is penetrated using up to velocity of sound or subsonic air-flow and can acted on come comminuting matter.Mechanical energy, which is converted to velocity of sound air motion, can need substantial amounts of energy, and the former is bigger for its observable index.
" high turbulence mill " Energy saving mechanism and effect of the present invention is that effect of inertia in turbulent flow is intended to energy being diffused into the micro cyclone scope of high wave number, and viscous effect only just consumingly exist in high wave-number range, and by it consume by effect of inertia conveyed at maelstrom Lai energy.The X 10 of reynolds number Re in this turbulence mill=6.65,（High turbulence is in high reynolds number Re> 1.5 X 105It is lower to occur）, can really produce high turbulence motion.Reynolds number is bigger, and effect of inertia is stronger, and it can deliver energy to higher wave-number range, and viscous effect is forced in higher wave-number range the effect of viscous force that can just show.When Reynolds number is fully big, exhaustion range be located in from containing on energy range very high wave number, be at this moment not involved in sticky consume effect completely containing energy range.
" high turbulence mill " of the present invention exactly saves Grin-ding energ7 using this characteristic of large Reynold number in turbulent motion.Because the Reynolds number of turbulence mill is up to the X 10 of Re=6.65, because this Reynolds number is fully big, therefore effect of inertia is dominant, material is effectively crushed, that is to say, that by mechanical device（Turbine）The end energy that conveying comes can fully send material to, effectively be crushed, useless power consumption is few.
This characteristic of high turbulence mill is that all milling equipments applied at present are incomparable, tradition
Mechanical grinding equipment be using mechanical energy directly drive medium motion come comminuting matter, crush efficiency is extremely low.Effective crushing work(of such as ball mill is only about 0.6 %, and there are about 95 99% energy and be converted into heat and dissipate.Airslide disintegrating mill is penetrated using up to velocity of sound or subsonic air-flow can carry out comminuting matter, and mechanical energy, which is converted to velocity of sound air motion and can said, to be needed to consume substantial amounts of energy, and the former is bigger for its observable index.
The high turbulence mill of the present invention is that, by crushing material, useless power consumption is few as the turbulent motion produced by motor-driven turbine.Actual measurement power consumption ratio：One-size is 5 % of airflow milling with being consumed energy under yield, ' it is 10 % that mechanical shock is ground, it is 15 % of vibromill.Social benefit and economic benefit Huge value produced by its energy-saving effect.
2nd, with gratifying environment protecting.
The world today causes global great attention to preventing and treating environmental pollution and man-made noise, particularly industrializes elimination of dust contamination difficulty maximum, and existing disintegrating apparatus all has different degrees of powder and leaked and the big technological difficulties of noise of equipment.And the mill chamber device of the high turbulence mill of the present invention is the turbine using particular design, when the turbine rotates at a high speed, it is in inclined-plane at leaf dish axis hole outer rim and at leaf dish axle that camber hypsokinesis blade is thrown in the left and right of turbine both sides.So when turbine rotates, mill chamber both sides have been respectively formed negative pressure, and in vorticity, generate the vortex of high intensity, will not also be leaked so that the axis hole for being effectively guaranteed mill chamber center is not required to sealing powder.
In addition, the bi-negative pressure turbine of high turbulence mill, leaf dish two sides are symmetrical and crossover location is respectively provided with the equal blade and shock plate of quantity, dynamic balancing is fairly good, turbine is steadily reliable when rotating, separately directly driven by motor, there is no reducing gear, noise of equipment very little, typically at 70 decibels or so.
3rd, it is high in technological content with unique technical characterstic
Superfine technique is one that development of the early 1990s to adapt to modern high technology is derived from
Materiel machining new technology is planted, only a small number of developed countries have this technology at present.China uses airflow pulverization at present, can be by crushing material into 10 μ π ι (1200 mesh）To 2.5 μm of (5000 mesh）Super-fine material, but generally existing high energy consumption, low production efficiency, the not high technical problem of machining accuracy.With the fast development of modern science and technology, to the technology of preparing of powder body material, it is desirable to more and more higher, to preparing high-precision sub-micron and nanoscale direction is developed.At present with physics technology of preparing production sub-micron and the mechanical technology of preparing of nanometer grade powder material, there is not this respect technology report also both at home and abroad.
The research and development of " high turbulence mill " are test-manufactured successfully, there is extremely far-reaching realistic meaning, and its technology has the unique function of following aspect：
(1) precision is crushed high
Product grading 0.1-0.9 μ π ι, powder precision can be adjusted, and efficiently solve that powder processed is thin, precision is high, narrow particle size distribution technical barrier from grinding mechanism.
(2) good physical performance
The pure physical behavio(u)r of its technology pulverization principle, material head-on collision autogenous grinding is crushed, and is not chemically reacted, thus effectively maintains the original property of material in itself.
(3) low temperature performance well '
Mill chamber is provided with cooling device, crushes and is in low temperature environment, crushes moment completion at low temperature.It is too high due to crushing temperature so as to avoid temperature-sensitive material, and influence the variation phenomenon of its physical property to occur.
(4) crushing, classification, modifying production process are integrated
Existing ultra-fine preparation, does not match classifying equipoment and is difficult to produce qualified superfine powder, production active powder also needs supporting modified device.Thus complex process, high equipment cost." high turbulence mill " has unique technical functionality, crushing, classification, modified three kinds of manufacturing procedures can be reduced to a kind of work
Sequence, grading and powder-modified processing are completed in crushing material simultaneously simultaneously.This mechanism innovation of " high turbulence mill " is that all milling equipments applied at present are unrivaled, a new technological revolution will be brought to grinding machine industry.
It is described above; be the present invention it is a kind of preferred embodiment; it is not intended to limit the present invention; on the basis of the above, made equivalent structure change, for example; blade more than 8 or less than 8 is housed on turbine; slightly changed to the shape design of blade, without departing from essence and spirit of the invention, therefore the protection domain of invention is determined by appended claims.
Claims (1)
- Claim1st, a kind of bi-negative pressure turbine, in high turbulence mill, it is characterised in that including：One leaf dish（29) and it is arranged on the leaf dish（29) multiple blades of two sides（15), wherein the blade is uniformly distributed circumferentially sideways in each of the leaf dish, and rotation direction is identical, and the blade positioned at one side of leaf dish circumferentially offsets one from another with the blade positioned at the leaf dish another side.2nd, bi-negative pressure turbine as claimed in claim 1, it is characterised in that the blade（15) outline is in arc is thrown, and its cross section is in " L " shape, including a base portion（153) and from the vertically extending flank of the base portion（154);Two screws are machined with the inside of the base portion of the blade（151st, 152), for by screw by the blade（15) it is fixed on the leaf dish（29) on.3rd, bi-negative pressure turbine as claimed in claim 2, it is characterised in that the outboard end of the base portion of the blade is formed with one first inclined-plane（155), first inclined-plane and leaf dish（29) angle α of plane is 30 ° 60 °；4th, bi-negative pressure turbine as claimed in claim 2, it is characterised in that the blade（15) close to leaf dish（29) side end at center is formed with one second inclined-plane（156), second inclined-plane（And leaf dish 156)（29) the angle β of plane is 45 ° 70 °.5th, the bi-negative pressure turbine as described in claim 2,3 or 4, it is characterised in that the blade（15) base portion（153) radially outer edge（And leaf dish 157)（29) basic circle（291) it coincide, the radially inner edge of multiple blades（158) it is located at and the basic circle（291) on concentric circumference；The horizontal inner edge of the blade（And outer lateral edges 160)（159) it is two sections of arcs with together circle center；So that arc is thrown in blade formation.6th, bi-negative pressure turbine as claimed in claim 5, it is characterised in that the horizontal inner edge of the arc of the blade and the together circle center of outer lateral edges are determined by following manner：Pass through leaf dish（29) center (O) vertical line（) and leaf dish OC（29) basic circle（291) intersection point is the first intersection point（C), with leaf dish center（0) it is the center of circle, arc is made using 0.25 0.35 times of leaf dish radius as radius（292), the arc（292) with passing through leaf dish center（0), with the vertical line（OC) into the RADIAL at 45 degree of angles（OB) intersection point formed is the second intersection point（B), then respectively with first intersection point（) and the second intersection point C（B it is) center of circle, makees arc by radius of the radius of leaf dish, the intersection point of two arcs is the together circle center.7th, bi-negative pressure turbine as claimed in claim 1, it is characterised in that the bi-negative pressure turbine also has multiple impact tooth plates（20), the impact tooth plate is located at leaf dish in pairs（20) two adjacent blades of both sides（15) between.8th, bi-negative pressure turbine as claimed in claim 7, it is characterised in that the impact tooth plate（20) installation portion is included（210) with a work department（220), installation portion（210) two mounting holes are formed with（230th, 240), for by screw by the impact tooth plate（20) it is fixed on the leaf dish（29) on；The work department（220) it is located at the installation portion（210) top, the installation portion is arranged on by dovetail groove（210) one is formed on, in the work department（220) impact teeth is formed with the top of, the impact teeth is rectangular teeth, and direction and the leaf dish of tooth（29) circumferencial direction is identical.9th, a kind of high turbulence mill, for processing super-fine powder, it is characterised in that including-one drive device（6), it is arranged on a base（8) on, including the motor being mutually coupled and a drive shaft；One hollow mill chamber（21), it is arranged on the base（8) on, in the mill chamber（21) stator is fixedly installed on internal perisporium and is oriented to gear ring（18);One bi-negative pressure turbine（16) it, can be rotatably set in the mill chamber（21) in, and by the drive Dynamic device（6) drive；One hopper（1), for passing through a feed pipe（4) to the mill chamber（21) conveying material in；One discharge nozzle（9), connected with the mill chamber, for exporting the product after crushing；AndOne control device, for carrying out electrical control to the high turbulence mill.10th, a kind of high turbulence mill as claimed in claim 9, it is characterised in that the mill chamber（21) it is water-cooled, is divided into inside and outside two Room, the mistress of the mill chamber and a cyclic water tank（2) it is connected.11st, a kind of high turbulence mill as described in claim 9 or 10, it is characterised in that also including a screw input feeder（14), the screw input feeder（14) two ends respectively with the hopper（1) connected with feed pipe, in a buncher（3) material is conveyed under driving to the mill chamber.12nd, a kind of high turbulence mill as claimed in claim 9, it is characterised in that the discharge nozzle（9) the other end is connected with a ball adapter（11), the ball coupling（11) connected with a cyclone feeder, the cyclone feeder and cloth bag collector connection, the cloth bag collector and air-introduced machine connection, the collection for completing product.13rd, a kind of high turbulence mill as described in claim 9,10,11 or 12, it is characterised in that mill chamber（21) the left and right sides is respectively provided with inner cover plate flange（12) with outer cover plate flange（13), the wherein inner cover plate flange of side（12) center is provided with pilot hole, drive device（6) drive shaft is by the pilot hole and is arranged on mill chamber（21) bi-negative pressure turbine in（16) connect, and by a fastening bolt（10) it is fixed；Inner cover plate flange on the left of this（12) on, the position on the upper side of the pilot hole, be also provided with charging aperture, the feed pipe（4) it is connected to the charging aperture；The inner cover plate flange center position of opposite side is provided with discharge opening, the discharge nozzle（9) it is connected to the discharge opening.14th, a kind of high turbulence mill as claimed in claim 9, it is characterised in that the stator is oriented to gear ring（18) the number of teeth is more than 50, and the flute profile indention of each tooth, and profile angle is 40 。 〜50° 。15th, a kind of high turbulence mill as claimed in claim 9, it is characterised in that the bi-negative pressure turbine includes：One leaf dish（29) and it is arranged on the leaf dish（29) multiple blades of two sides（15), wherein the blade is uniformly distributed circumferentially sideways in each of the leaf dish, and rotation direction is identical, and the blade positioned at one side of leaf dish circumferentially offsets one from another with the blade positioned at the leaf dish another side.16th, a kind of high turbulence mill as claimed in claim 15, it is characterised in that the blade（15) outline is in arc is thrown, and its cross section is in " L " shape, including a base portion（153) and from the vertically extending flank of the base portion（154);Two screws are machined with the inside of the base portion of the blade（151st, 152), for by screw by the blade（15) it is fixed on the leaf dish（29) on.17th, a kind of high turbulence mill as claimed in claim 16, it is characterised in that the outboard end of the base portion of the blade is formed with one first inclined-plane（155), first inclined-plane and leaf dish（29) angle α of plane is 30 ° 60 °.18th, a kind of high turbulence mill as claimed in claim 16, it is characterised in that the blade（15) side end close to leaf dish (29) center is formed with one second inclined-plane（156), second inclined-plane（And leaf dish 156)（29) the angle β of plane is 45 ° 70 °.19th, a kind of high turbulence mill as described in claim 17 or 18, it is characterised in that the blade（15) base portion（153) radially outer edge（And leaf dish 157)（29) basic circle（291) it coincide, the radially inner edge of multiple blades（158) it is located at and the basic circle（291) on concentric circumference；The horizontal inner edge of the blade（And outer lateral edges 160)（159) it is two sections of arcs with phase concentric；So that arc is thrown in blade formation.20th, a kind of high turbulence mill as claimed in claim 19, it is characterised in that the horizontal inner edge of the arc of the blade and the together circle center of outer lateral edges are determined by following manner：Pass through leaf dish（29) Center（O vertical line)（) and leaf dish OC（29) basic circle（291) intersection point is the first intersection point（), C with leaf dish center（0) it is the center of circle, arc is made using 0.25 0.35 times of leaf dish radius as radius（292), the arc（292) with passing through leaf dish center（O), with the vertical line（OC) into the RADIAL at 45 degree of angles（OB) intersection point formed is the second intersection point（B), then first intersection point respectively（) and the second intersection point C（B it is) center of circle, makees arc by radius of the radius of leaf dish, the intersection point of two arcs is the together circle center.21st, a kind of high turbulence mill as claimed in claim 15, it is characterised in that the bi-negative pressure turbine also has multiple impact tooth plates（20), the impact tooth plate is located at leaf dish in pairs（20) two adjacent blades of both sides（15) between.22nd, a kind of high turbulence mill as claimed in claim 21, it is characterised in that the impact tooth plate（20) installation portion is included（210) with a work department（220), installation portion（210) two mounting holes are formed with（230th, 240), for by screw by the impact tooth plate（20) it is fixed in the leaf dish (29)；The work department（220) it is located at the installation portion（210) top, it is arranged on the installation portion by dovetail groove（210) so as to form as one on, in the work department（220) impact teeth is formed with the top of, the impact teeth is rectangular teeth, and direction and the leaf dish of tooth（29) circumferencial direction is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005800081972A CN1929925B (en) | 2004-03-23 | 2005-01-24 | High turbulence mill and its bi-negative pressure turbine |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410039858 | 2004-03-23 | ||
| CN200410039858.5 | 2004-03-23 | ||
| CN2005800081972A CN1929925B (en) | 2004-03-23 | 2005-01-24 | High turbulence mill and its bi-negative pressure turbine |
| PCT/CN2005/000104 WO2005089948A1 (en) | 2004-03-23 | 2005-01-24 | High turbulence mill and its bi-negative pressure turbine |
Publications (2)
| Publication Number | Publication Date |
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| CN1929925A true CN1929925A (en) | 2007-03-14 |
| CN1929925B CN1929925B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800081972A Expired - Fee Related CN1929925B (en) | 2004-03-23 | 2005-01-24 | High turbulence mill and its bi-negative pressure turbine |
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| Country | Link |
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| CN (1) | CN1929925B (en) |
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| CN102806130A (en) * | 2012-08-04 | 2012-12-05 | 王瑞琪 | Medium-free micro pulverizer |
| CN103752387A (en) * | 2014-01-12 | 2014-04-30 | 上海红箭自动化设备有限公司 | Powder grinding structure of environment-friendly and energy-saving type eddy current pulverizer |
| CN113000173A (en) * | 2021-03-29 | 2021-06-22 | 南京工程学院 | Horizontal hydraulic bidirectional hedging high-speed turbulent mill for superhard nano crushing |
| CN113019640A (en) * | 2021-03-29 | 2021-06-25 | 南京工程学院 | Efficient superhard ultramicro powder vertical hydraulic turbulent mill |
| CN115254308A (en) * | 2022-06-22 | 2022-11-01 | 张华� | Starch-rich raw material milling process |
| CN117943182A (en) * | 2024-03-22 | 2024-04-30 | 河北汇亚新材料集团股份有限公司 | Porous carbon-carbon molecular sieve superfine pulverizer and pulverizing method |
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| CN105935620B (en) * | 2016-05-04 | 2017-04-26 | 广州致密纳米技术有限公司 | Preparation device for nano material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3543370A1 (en) * | 1985-12-07 | 1987-06-11 | Jackering Altenburger Masch | MILL WITH SEVERAL GRINDINGS |
| CN1055032C (en) * | 1996-06-22 | 2000-08-02 | 兰州振茂实业公司 | Impeller coal pulverizer with dual suction and dual pulverization structure |
| CN1358572A (en) * | 2000-12-12 | 2002-07-17 | 任良勇 | High-speed air flow multi-stage ultrafine powder mill |
| KR20010035134A (en) * | 2000-12-30 | 2001-05-07 | 김대헌 | crusher |
| CN2589074Y (en) * | 2002-11-10 | 2003-12-03 | 王庆平 | Algae breaker |
| CN1295021C (en) * | 2004-04-15 | 2007-01-17 | 杨富茂 | Mechanical turbulence milling tools |
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2005
- 2005-01-24 CN CN2005800081972A patent/CN1929925B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806130A (en) * | 2012-08-04 | 2012-12-05 | 王瑞琪 | Medium-free micro pulverizer |
| CN103752387A (en) * | 2014-01-12 | 2014-04-30 | 上海红箭自动化设备有限公司 | Powder grinding structure of environment-friendly and energy-saving type eddy current pulverizer |
| CN103752387B (en) * | 2014-01-12 | 2016-02-10 | 上海红箭自动化设备有限公司 | The abrasive dust structure of environment-friendly and energy-efficient eddy mill |
| CN113000173A (en) * | 2021-03-29 | 2021-06-22 | 南京工程学院 | Horizontal hydraulic bidirectional hedging high-speed turbulent mill for superhard nano crushing |
| CN113019640A (en) * | 2021-03-29 | 2021-06-25 | 南京工程学院 | Efficient superhard ultramicro powder vertical hydraulic turbulent mill |
| CN113019640B (en) * | 2021-03-29 | 2022-07-22 | 南京工程学院 | Efficient superhard ultramicro powder vertical hydraulic turbulent mill |
| CN115254308A (en) * | 2022-06-22 | 2022-11-01 | 张华� | Starch-rich raw material milling process |
| CN115254308B (en) * | 2022-06-22 | 2023-08-29 | 常州市佳华机械科技有限公司 | Starch-rich raw material pulverizing process |
| CN117943182A (en) * | 2024-03-22 | 2024-04-30 | 河北汇亚新材料集团股份有限公司 | Porous carbon-carbon molecular sieve superfine pulverizer and pulverizing method |
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| Publication number | Publication date |
|---|---|
| CN1929925B (en) | 2012-07-04 |
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