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CN106391465A - Large-flow multi-class device - Google Patents

Large-flow multi-class device Download PDF

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Publication number
CN106391465A
CN106391465A CN201610838481.2A CN201610838481A CN106391465A CN 106391465 A CN106391465 A CN 106391465A CN 201610838481 A CN201610838481 A CN 201610838481A CN 106391465 A CN106391465 A CN 106391465A
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CN
China
Prior art keywords
cylinder
wheel
discharging opening
discharging
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610838481.2A
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Chinese (zh)
Inventor
雷立猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Puhler (tianjin) Nanotechnology Co Ltd
Original Assignee
Puhler (tianjin) Nanotechnology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Puhler (tianjin) Nanotechnology Co Ltd filed Critical Puhler (tianjin) Nanotechnology Co Ltd
Priority to CN201610838481.2A priority Critical patent/CN106391465A/en
Publication of CN106391465A publication Critical patent/CN106391465A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to an intelligent dry type ball-milling system, in particular to a large-flow multi-class device. The device comprises a vertically-arranged hollow classification barrel; a feeding pipe is arranged on the barrel; one part of powder entering an inner cavity of the barrel from the feeding pipe flows out from a discharging port in the bottom end of the barrel under the effect of gas, and the other part of the powder flows to a discharging port in the top end of the barrel; a discharging cavity communicating with the discharging port in the top end is arranged on the upper side of the discharging port in the top end; a plurality of dynamic centrifugal classification wheels are arranged in the discharging cavity; and the powder flowing to the discharging port in the top end flows out after being classified by the multiple dynamic centrifugal classification wheels. With the device, external gas is sucked into the barrel by the aid of a negative-pressure suction pipe and can perform preliminary classification treatment on the powder in the barrel, and after the powder blowing to the discharging port in the top end is subjected to secondary classification treatment by the aid of the multiple classification wheels, part of qualified powder is output, so that the quality uniformity of products is improved, and the classification efficiency is improved.

Description

A kind of many grading plants of big flow
Technical field
The present invention relates to the grinding thinning apparatus technical field of advanced material and the classifying equipoment industrial design of superfine powder Field, particularly to a kind of many grading plants of big flow.
Background technology
With the continuous improvement of expanding economy and people's living standard, powder body super-refinement demand is growing, advanced material Material occupies increasingly heavier ratio in whole nano material.Micropowder is wide in fields such as military project, space flight, chemical industry, metallurgy, building materials General application, market demand is very big, and market prospect is also very wide, therefore increasing engineers and technicians' concern ultra micro The production of powder, the flouring technology of the super fine developed also gets more and more, and powder manufacturing apparatus is varied, and milling efficiency is also more next Higher.During material powder body dry classification, commonly use air current classifying, wherein most critical position is classifying turbine, impeller Blade is all uniform arrangement, and by being so classified the product obtaining, its particle size distribution compares concentration, but existing single fulcrum Structure rating wheel, its intensity is too low, and then makes to bear high rotary speed working.In actual production, be frequently encountered according to Powder body separates by different grain size intervals, the material of the heterogeneity being blended in powder body is separated and by solid particle from Separate in liquid or gas.Classification be exactly according to different grain size, shape, density material in liquid or gas medium The separation to realize grain thickness powder for the difference of motion.Classification is generally divided into grading and shape classification, due to grain shape There is complicated variety, classifying equipoment is less to apply shape to carry out, and shape classification labor intensive material resources are larger simultaneously, therefore, real During border produces, grain graininess hierarchical application is wider.
Core in particle classifying technology is classifying equipoment.Classifying equipoment is typically based on the fluid media (medium) residing for powder granule Difference, classification can be divided into dry classification (medium is air), wet classification (medium is water or other liquid) and surpass Critical classification.Dry classification can be divided into gravity type, inertia-type and centrifugal etc. according to classification principle, common are conical centrifuge gas Current classifier, MS impeller grader, ATP type grader, inertia force classifier, KSF type Novel super-thin grader, LHB type whirlpool Wheeled superfine classifier, DS type grader, ACUCUT type grader, O-Sepa grader etc..Wet classification is former according to being classified Reason can be divided into the gravity sedimentation type grader relying on gravity to be classified and the centrifugal waterpower relying on centrifugal force to be classified to divide Level machine.Common gravity sedimentation type grader has mechanical classifier, cone classifier, box and slot type hydraulic classifier, gravity - wet classifier and cross-current type grader etc..Centrifugal hydraulic classifier is divided into hydrocyclone and centrifugal classifying.Common Centrifugal classifying have horizontal screw centrifugal grader, vane type hydraulic classifier, TUclausthal formula centrifugal classifying, solid Determine bowl formula (solid-bowl) centrifugal classifying and disk centrifugal grader etc..Compared to dry method classifying equipment of powder, wet classification Accurate Classification for micropowder provides probability, can solve the problem that micropowder is classified the most insoluble problem-dispersion.And from For in the granularity of product of preparation, because dry method micropowder preparation system is affected larger by the grinding limit it is difficult to obtain 1 μm Particles below, waterproof pulverization and classification can be easily obtained 1 μm of particles below.Although different types of centrifugal classifying has each Advantage, but have that some are jointly not enough, such as different Cut sizes can only be realized by change frequency conversion motor rotating speed;Motor Main shaft is generally connected with grader main shaft by belt pulley, and rotating speed can not be too high, can not form strong centrifugal force field, thus Lead to Cut size larger (micron dimension);And discharging is often blocked, lead to classification efficiency low.
Content of the invention
For above-mentioned technical problem, it is an object of the invention to provide one kind is classified to powder body using multiple grading wheels The many grading plants of big flow.
The present invention solves the technical scheme that adopted of above-mentioned technical problem:A kind of many grading plants of big flow, including perpendicular The hollow classification cylinder of straight setting, cylinder is provided with feed pipe, enters the powder body of this cylinder lumen in gas from described feed pipe In the presence of, a part flows out from cylinder bottom discharging opening, and another part flow to cylinder top discharging opening, in this top discharging opening Upside is provided with the discharging chamber connecting with this top discharging opening, and this discharging intracavity is provided with several dynamic centrifugal grading wheels, can adopt Make of materials such as steel alloy, aluminium oxide, zirconium oxides, the powder body flowing to described top discharging opening is through this several dynamic centrifugal classification Flow out after wheel classification.
Preferably, each described grading wheel includes being arranged on the hollow wheel body of described discharging intracavity, this wheel body axial direction one End opening, the other end are rotated by the motor sealing against connection, and this wheel body perisporium offers several equal and wheel body vertically The bar shaped material path of inner space;Described discharging chamber is provided with negative-pressure suction pipe, under the suction function of this negative-pressure suction pipe, stream Flow into described negative-pressure suction pipe after to a part of powder body of top discharging opening through the material path of rotary wheel, flow to top discharging Another part powder body of mouth returns described cylinder lumen.
Preferably, the axial direction of each described grading wheel wheel body is horizontally disposed with, it flow to a part for top discharging opening Powder body enters wheel body inner chamber through after the material path of rotary wheel, then flows into described negative-pressure suction from the described opening of wheel body Pipe.
Preferably, several grading wheels are along discharging chamber marginal distribution, described discharging intracavity is provided with several discharge nozzles, wheel body The described other end be connected with discharging chamber side wall, the described opening of wheel body is connected with corresponding discharge nozzle one end, and discharge nozzle is another End is connected with the described negative-pressure suction pipe being arranged in the middle part of discharging chamber.
As another kind preferably, the axial direction of each described grading wheel wheel body is vertically arranged, and flow to top discharging opening After the described opening of wheel body one end enters wheel intracoelomic cavity, it is described that a part of powder body passes through the material path of rotary wheel to flow into powder body Negative-pressure suction pipe.
Preferably, described discharging intracavity is provided with the base plate closing described top discharging opening, described one end peace of wheel body It is contained on base plate, the described opening at this end is connected with top discharging opening, the roof of the described other end of wheel body and closing discharging chamber Connect, described negative-pressure suction pipe is arranged on this roof.
Preferably, described cylinder top is provided with the described feed pipe entering this cylinder lumen for powder body, cylinder bottom sets Supplied gas are had to enter at least one air inlet pipe of this cylinder lumen, described negative-pressure suction pipe makes ambient atmos enter from described air inlet pipe Enter cylinder lumen, the gas entering cylinder lumen blows a part of for this inner chamber powder body from bottom to top to this cylinder top discharging Mouthful, cylinder lumen another part powder body flows out from described bottom discharging opening from top to bottom.
Preferably, described cylinder includes two conical shells setting up and down, upper and lower conical shell be upper end diameter big, Lower end diameter is little, and upper conical cylinder lower end inner chamber forms stepped hole with inferior pyramidal cylinder upper end inner chamber;Described feed pipe is along cylinder Perisporium tangent line arranges on upper conical cylinder, and described air inlet pipe is along along cylinder perisporium tangent line setting inferior pyramidal cylinder.
Preferably, described bottom discharging opening is provided with airlock or Pneumatic butterfly valve.
Preferably, being provided with vibrating device on described cylinder.
As can be known from the above technical solutions, negative-pressure suction pipe of the present invention sucks ambient atmos in cylinder, and this gas can be to cylinder Internal powder body carries out preliminary staged care, and blows secondary or repeatedly point through several grading wheels again to the powder body of top discharging opening Level exports a part of qualified powder body after processing, thus improving the quality uniformity of product, so that overall grading effect and efficiency is obtained Arrive raising, improve grader performance.
Brief description
Fig. 1 is a kind of structural representation of optimal way of the present invention.
Fig. 2 is the partial cross structural scheme of mechanism of Fig. 1.
Fig. 3 is the stereoscopic mechanism schematic diagram of grading wheel wheel body in the present invention.
Fig. 4 is the cross-sectional schematic of present invention another kind optimal way.
Specific embodiment
With reference to the present invention is discussed in detail:
Many grading plants with a kind of big flow of Fig. 3 as shown in Figure 1, Figure 2(ESdY rotor), including the hollow assorting cylinder being vertically arranged Body 1, cylinder is provided with feed pipe 11, enters the powder body of this cylinder lumen in the presence of gas from described feed pipe, a part Flow out from cylinder bottom discharging opening 12, another part flow to cylinder top discharging opening 13, be provided with the upside of this top discharging opening The discharging chamber 2 connecting with this top discharging opening, this discharging intracavity is provided with several dynamic centrifugal grading wheels 3, flow to described top and goes out The powder body of material mouth flows out after this several dynamic centrifugal grading wheel classification, that is, in cylinder lumen through the preliminary part being classified relatively Thin powder body is flowed out after grading wheel, and the thicker powder body of another part then overcomes gas impulsive force and gravity to flow to bottom and go out Material mouth, thus realize secondary grading.Several grading wheels of the present invention can be circumferential uniform, is conducive to uniform discharge;To larger flow For, even if adopting a large-scale grading wheel, also not complete for powder body input to be fractionated, and it is classified second-rate;Cause This, can fully be solved the above problems using multiple many step cones, and flexible layout.In implementation process can according to the size of flow, The quantity of reasonable not layout grading wheel, such as 3,4,5,6,8 etc..
The each described grading wheel 3 of the present invention includes being arranged on the hollow wheel body 31 of described discharging intracavity, and this wheel body is axially One end open, the other end are rotated by the motor 4 sealing against connection, and motor is arranged on outside discharging chamber, this wheel body perisporium Offer several bar shaped material paths 32 all with wheel body inner space vertically;Described discharging chamber is provided with negative-pressure suction pipe 5, bears Pressure suction tube can be in the form of gas in the suction pipes such as air-introduced machine and powder body, under the suction function of this negative-pressure suction pipe, only The powder body having the part flowing to top discharging opening thinner flows into described negative-pressure suction after could passing through the material path of rotary wheel Pipe, and the thicker powder body of another part of flowing to top discharging opening then overcomes gravity and negative pressure to return described cylinder lumen, then Flow out from bottom discharging opening or participate in classification again.
As a kind of optimal way, the axial direction of each described grading wheel wheel body is horizontally disposed with, and flow to top discharging opening A part of powder body pass through the material path of rotary wheel after enter wheel body inner chamber, then flow into described negative from the described opening of wheel body Pressure suction tube.The grading wheel of this kind of mode can suck wheel body by taking turns external powder body through material path in the presence of negative-pressure suction pipe Inner chamber, in this process, during wheel body rotation, material path is in dynamically, and only some thinner powder body overcomes wheel body rotation Centrifugal force enters wheel intracoelomic cavity from material path moment, and the thicker powder body of another part then cannot overcome centrifugal force to return cylinder Inside participate in preliminary classification again or directly flow out from bottom discharging opening.Therefore, carry out secondary grading through grading wheel can obtain relatively Thin powder body, and it is accurately controlled the product granularity of secondary grading by the rotary speed and vacuum magnitude adjusting grading wheel.Make For preferred, along discharging chamber marginal distribution, described discharging intracavity is provided with several discharge nozzles 21 to several grading wheels, wheel body described another One end is connected with discharging chamber side wall, and the described opening of wheel body is connected with corresponding discharge nozzle one end, the discharge nozzle other end and setting Described negative-pressure suction pipe in the middle part of discharging chamber connects;The powder body of each grading wheel wheel intracoelomic cavity is converged in out by discharge nozzle In the middle part of material chamber, then flow out in negative suction suction tube, thus improve greatly improving discharging efficiency.
As Fig. 4, as another kind preferably, the axial direction of each described grading wheel wheel body is vertically arranged, and flow to top and goes out After the described opening of wheel body one end enters wheel intracoelomic cavity, a part of powder body passes through the material path stream of rotary wheel to the powder body of material mouth Enter described negative-pressure suction pipe;In implementation process, the powder body entering wheel intracoelomic cavity produces centrifugal force with the rotation of wheel body, and punishment in advance Because being in dynamic shape with wheel body rotation, therefore, only some thinner powder body is worn in the presence of centrifugal force and negative pressure in hole Cross material path, and the thicker powder body of another part then cannot pass through material path to be blocked in wheel intracoelomic cavity, this part powder body Overcome centrifugal force and negative pressure to return described cylinder lumen under the new extruding entering inner chamber powder body, then flow out from bottom discharging opening Or continue to participate in classification.Which, simultaneously using the effect of centrifugation and negative pressure, is conducive to accelerating discharging, improves discharging efficiency.Tool During body, described discharging intracavity is provided with the base plate 22 closing described top discharging opening, and described one end of wheel body is arranged on bottom On plate, the described opening at this end is connected with top discharging opening, and base plate can prevent powder body from revealing from the other positions of opening, promotes powder Body fully enters wheel intracoelomic cavity, and the described other end of wheel body is connected with the roof of closing discharging chamber, described negative-pressure suction Guan Keshe Put in the middle part of this roof, and several grading wheel can be distributed in discharging cavity edge, so can be in the presence of negative pressure, through material path Powder body to middle part converge, then go out from negative-pressure suction pipe flow.In implementation process, negative-pressure suction pipe may also be arranged on discharging chamber Side wall, and can arrange several, that is, each grading wheel corresponds to a negative-pressure suction pipe, so in the effect of negative pressure and centrifugal force Under, the powder body throwing away from material path is directly entered corresponding negative-pressure suction pipe, thus improving discharging efficiency further.
Cylinder 1 top of the present invention is provided with the described feed pipe 11 entering this cylinder lumen for powder body, and powder body is in negative pressure It is inhaled under effect in cylinder, cylinder bottom is provided with least one air inlet pipe 14 that supplied gas enter this cylinder lumen, such as flow Larger, many air inlet pipe can be set, increase air inflow;Described negative-pressure suction pipe makes ambient atmos enter cylinder from described air inlet pipe Inner chamber, the gas entering cylinder lumen blows a part of for this inner chamber powder body from bottom to top to this cylinder top discharging opening, cylinder Inner chamber another part powder body flows out from described bottom discharging opening from top to bottom, thus realizing preliminary classification.Also can set in air inlet pipe It is empty air cleaner it is ensured that the air sucking in cylinder is more clean, it is to avoid the quality of impact powder body.
Preferably, described cylinder 1 includes two conical shells setting up and down, upper and lower conical shell is upper end diameter Greatly, lower end diameter is little, and upper conical cylinder 15 lower end inner chamber forms stepped hole 17 with inferior pyramidal cylinder 16 upper end inner chamber;Described step Hole upper end diameter is little, and lower end diameter is big, because air inlet pipe is arranged on cylinder bottom, ambient atmos after air inlet pipe suction, meeting Pass through stepped hole from bottom to top, enter in minor diameter so that gas similar spurting entrance is upper conical from large diameter hole Cylinder lumen, thus improve the flow velocity of gas;Simultaneously as powder body is after the feed pipe of upper conical cylinder enters, its by The approximate centerline of cylinder all can be converged in during flowing downward, and now small diameter bore just can be directed at the powder body of convergence, So that passing through the powder body impacting convergence in the gas tremendous range of small diameter bore, it is to avoid particle classifying blind area occurs.? In implementation process, described air inlet pipe, along along cylinder perisporium tangent line setting inferior pyramidal cylinder, so can make gas along cylinder inboard wall spiral shell Screw on liter, and lift the powder body impacting convergence after flow velocity through small diameter bore, powder body is impacted after dispersion, and thicker powder body overcomes gas The impulsive force of body(I.e. negative pressure)Flow out from bottom discharging opening, and thinner powder body then in the presence of gas impulsive force along upper conical The spiral inner wall of cylinder rises to bottom discharging opening;Because the upper end diameter of upper conical cylinder is big, lower end diameter is little, therefore quality Lighter powder body can disperse during spiral further, now may some thicker powder body overcome again again Gas impulsive force flows out from bottom discharging opening, and the diameter of particle so flowing to top discharging opening is thinner, thus reach dividing further The purpose of level.Due to powder body in the presence of gas impulsive force along cylinder inboard wall spiral, the feed pipe of therefore tangent line setting With the air inlet pipe of tangent line setting, powder body and gas are fully contacted it is ensured that gas at utmost Ground shock waves powder body, can be further Avoid the occurrence of particle classifying blind area;In implementation process, both tangential directions are preferably reversed, and impact effect is more preferable.
Because the present invention adopts negative pressure to suck gas, if powder directly flows out from bottom discharging opening, in the work of negative pressure Cylinder lumen may be entered from bottom discharging opening by some gas with lower, on the one hand be unfavorable for grading discharge, the opposing party's face Ring and suck the impulsive force to inner chamber material for the gas, lead to energy consumption higher, classification is difficult;In order to solve the above problems, the present invention can The drawing mechanisms 6 such as cyclone collector, sack cleaner, airlock or butterfly valve are set in discharging opening, all should be adopted according to conventional design With static electricity earthing device, static electricity earthing device, generally using wire, the housing of equipment is connected with the earth, for the ease of dimension Repair or change, wire can be bolted on the housing of equipment, more traditional being welded on uses on the housing of equipment Get up convenient.
The drawing mechanism such as airlock that the present invention adopts, it can make powder continuous discharge by the material discharging wheel of rotation, also may be used Closing discharging opening, prevents gas from entering cylinder lumen from discharging opening;Also can be one or more pneumatically or electrically in discharging opening setting Butterfly valve, by pneumatically or electrically intermittently starting butterfly valve, realizes the intermittent take-off of discharging opening, that is, only through the time of one section of setting Discharging eloquence is opened afterwards, and the sealing of other times discharging opening, improve the air-tightness of cylinder lumen.In order to prevent bonding on barrel wall Powder, the present invention is provided with vibrating device 7 on cylinder, such as electric hammer or pneumatic hammer etc., and the powder vibration of barrel wall can be departed from cylinder by it Body wall, makes the powder of disengaging flow out or participate in classification, it is to avoid to waste powder or the phenomenon such as result in blockage.
Above-mentioned embodiment is used for illustrative purposes only, and is not limitation of the present invention, relevant technical field Those of ordinary skill, without departing from the spirit and scope of the present invention, acceptable various changes can be made and modification, therefore institute There is equivalent technical scheme also should belong to scope of the invention.

Claims (10)

1. the many grading plants of a kind of big flow, including the hollow classification cylinder being vertically arranged, cylinder is provided with feed pipe, its feature It is:Enter the powder body of this cylinder lumen from described feed pipe in the presence of gas, a part is from cylinder bottom discharging opening stream Go out, another part flow to cylinder top discharging opening, be provided with going out of connecting with this top discharging opening on the upside of this top discharging opening Material chamber, this discharging intracavity is provided with several dynamic centrifugal grading wheels, flow to the powder body of described top discharging opening through this several dynamic from Flow out after the classification of heart grading wheel.
2. according to claim 1 the many grading plants of big flow it is characterised in that:Each described grading wheel includes being arranged on institute State the hollow wheel body of discharging intracavity, this wheel body axial direction one end open, the other end are rotated by the motor sealing against connection, should Wheel body perisporium offers several bar shaped material paths all with wheel body inner space vertically;Described discharging chamber is provided with negative-pressure suction Pipe, under the suction function of this negative-pressure suction pipe, a part of powder body flowing to top discharging opening passes through the material path of rotary wheel After flow into described negative-pressure suction pipe, flow to top discharging opening another part powder body return described cylinder lumen.
3. according to claim 2 the many grading plants of big flow it is characterised in that:The axial direction side of each described grading wheel wheel body To being horizontally disposed with, a part of powder body flowing to top discharging opening enters wheel body inner chamber, then through after the material path of rotary wheel Flow into described negative-pressure suction pipe from the described opening of wheel body.
4. according to claim 3 the many grading plants of big flow it is characterised in that:Several grading wheels divide along discharging cavity edge Cloth, described discharging intracavity is provided with several discharge nozzles, and the described other end of wheel body is connected with discharging chamber side wall, opens described in wheel body Mouth is connected with corresponding discharge nozzle one end, and the discharge nozzle other end is connected with the described negative-pressure suction pipe being arranged in the middle part of discharging chamber.
5. according to claim 2 the many grading plants of big flow it is characterised in that:The axial direction side of each described grading wheel wheel body To being vertically arranged, it flow to the powder body of top discharging opening after the described opening of wheel body one end enters wheel intracoelomic cavity, a part of powder body Material path through rotary wheel flows into described negative-pressure suction pipe.
6. according to claim 5 the many grading plants of big flow it is characterised in that:It is described that described discharging intracavity is provided with closing The base plate of top discharging opening, described one end of wheel body is arranged on base plate, and the described opening at this end is connected with top discharging opening, wheel The described other end of body is connected with the roof of closing discharging chamber, and described negative-pressure suction pipe is arranged on this roof.
7. the many grading plants of big flow according to any one in claim 2 to 6 it is characterised in that:Described cylinder top It is provided with the described expects pipe of entering entering this cylinder lumen for powder body, cylinder bottom is provided with least that supplied gas enter this cylinder lumen Root air inlet pipe, described negative-pressure suction pipe makes ambient atmos enter cylinder lumen from described air inlet pipe, enters the gas of cylinder lumen A part of for this inner chamber powder body is blowed from bottom to top to this cylinder top discharging opening, cylinder lumen another part powder body is from top to bottom Flow out from described bottom discharging opening.
8. according to claim 7 the many grading plants of big flow it is characterised in that:Described cylinder includes two cones setting up and down Shape cylinder, upper and lower conical shell is that upper end diameter is big, lower end diameter is little, on upper conical cylinder lower end inner chamber and inferior pyramidal cylinder End inner chamber forms stepped hole;Described feed pipe arranges on upper conical cylinder along cylinder perisporium tangent line, and described air inlet pipe is along cylinder week On wall tangent line setting inferior pyramidal cylinder.
9. according to claim 1 the many grading plants of big flow it is characterised in that:Described bottom discharging opening is provided with airlock Or Pneumatic butterfly valve.
10. according to claim 1 the many grading plants of big flow it is characterised in that:It is provided with vibrating device on described cylinder.
CN201610838481.2A 2016-09-20 2016-09-20 Large-flow multi-class device Pending CN106391465A (en)

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Application Number Priority Date Filing Date Title
CN201610838481.2A CN106391465A (en) 2016-09-20 2016-09-20 Large-flow multi-class device

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109351459A (en) * 2018-11-30 2019-02-19 福建龙亿粉体装备制造有限公司 A kind of vertical particle classifying mechanism and grading plant with more stage units
CN112058666A (en) * 2020-09-21 2020-12-11 连云港市沃鑫高新材料有限公司 Silicon carbide micro-powder grading equipment
CN114713501A (en) * 2022-04-15 2022-07-08 新疆晶硕新材料有限公司 A particle size grading plant for high temperature hydrolysis nano-material
CN118635117A (en) * 2024-08-13 2024-09-13 江苏禹铠智能装备有限公司 A counter-rotating grading wheel device

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Publication number Priority date Publication date Assignee Title
US5366095A (en) * 1993-11-15 1994-11-22 Christopher Martin Air classification system
CN2239301Y (en) * 1995-11-06 1996-11-06 曹志国 Multi-wheel airflow classifier
JPH09271721A (en) * 1996-04-04 1997-10-21 Kao Corp Rotary powder classifier
CN2899972Y (en) * 2006-04-28 2007-05-16 上海化工机械三厂粉碎装备分厂 Vertical double rotor screw feeding classifier
CN104226591A (en) * 2013-11-29 2014-12-24 上海益非亚粉体技术设备有限公司 Dynamic grader
CN206229683U (en) * 2016-09-20 2017-06-09 派勒(天津)纳米技术有限公司 A kind of many grading plants of big flow

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366095A (en) * 1993-11-15 1994-11-22 Christopher Martin Air classification system
CN2239301Y (en) * 1995-11-06 1996-11-06 曹志国 Multi-wheel airflow classifier
JPH09271721A (en) * 1996-04-04 1997-10-21 Kao Corp Rotary powder classifier
CN2899972Y (en) * 2006-04-28 2007-05-16 上海化工机械三厂粉碎装备分厂 Vertical double rotor screw feeding classifier
CN104226591A (en) * 2013-11-29 2014-12-24 上海益非亚粉体技术设备有限公司 Dynamic grader
CN206229683U (en) * 2016-09-20 2017-06-09 派勒(天津)纳米技术有限公司 A kind of many grading plants of big flow

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109351459A (en) * 2018-11-30 2019-02-19 福建龙亿粉体装备制造有限公司 A kind of vertical particle classifying mechanism and grading plant with more stage units
CN109351459B (en) * 2018-11-30 2024-05-31 福建龙亿粉体装备制造有限公司 Vertical powder grading mechanism with multiple grading units and grading device
CN112058666A (en) * 2020-09-21 2020-12-11 连云港市沃鑫高新材料有限公司 Silicon carbide micro-powder grading equipment
CN114713501A (en) * 2022-04-15 2022-07-08 新疆晶硕新材料有限公司 A particle size grading plant for high temperature hydrolysis nano-material
CN118635117A (en) * 2024-08-13 2024-09-13 江苏禹铠智能装备有限公司 A counter-rotating grading wheel device

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Application publication date: 20170215