CN205253566U - Powder grading plant , system - Google Patents
Powder grading plant , system Download PDFInfo
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- CN205253566U CN205253566U CN201520744520.3U CN201520744520U CN205253566U CN 205253566 U CN205253566 U CN 205253566U CN 201520744520 U CN201520744520 U CN 201520744520U CN 205253566 U CN205253566 U CN 205253566U
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Abstract
The utility model discloses a powder grading plant, system, powder grading system include casing (200), and this casing has feed inlet (201), be located farine discharge gate (202) at top and be located the bottom thick powder outlet (203), and install the powder in the casing and mix mechanism (204), wherein the powder mixs the mechanism including rotationally connecting pivot (205) on the roof of casing to be connected with in this pivot and mix oar (212). Mix under the stirring of mechanism at the powder along with the powder of carrying wind to get into through the feed inlet, reach the middlings and the farine effectively separates through the effect of rotation centrifugal force and air current, wherein in practical application, can can install the induced air device in the low reaches of farine discharge gate, rise to the top of casing and discharge from the farine discharge gate along with the air current than fine powder in order to help in what isolate, be that the farine can rely on to be gone out by lower supreme air current, thicker powder is discharged from thick powder outlet then drop to the bottom of casing.
Description
Technical field
The utility model relates to the classification field of powder, particularly, relates to a kind of powder lot classifying apparatus and makesBy the powder hierarchy system of this device, be particularly useful for separating of catalyst meal and fine powder.
Background technology
Powder is widely used in the every field of chemical industry, wherein often need to relate to the classification of powder. ExampleAs, in chemical field, catalytic cracking catalyst passes through the processes such as plastic, spraying in preparation process, whereinSpray process rear catalyst grain thickness is inhomogeneous, therefore requires us need to be to catalysis according to different refineriesAgent particle screens, for especially carefully and thick especially particle filter and sift out. General catalystParticle requirement screening concentrates between 40-80 μ m, and existing cyclone separator can not accurately effectively reachTo industrial requirements, therefore need meal and the fine powder separator of exploitation, can be by effective the screening of catalystBe controlled within the scope of it, can isolate as requested the catalyst granules of different size size simultaneously, thisSample prescription is just recycled again to the varigrained fine powder of catalyst and meal.
For example, Chinese patent open CN1935349 provide a kind of gas-solid fluidization Coupling device, itsAt least comprise the gas-solid fluidized bed body of one-level, this fluidized bed body is vertically disposed cylindrical shell, and top is taper contractingGauge structure, granule outlet is formed at this undergauge structure top, and the bottom of this fluidized bed body is provided with largeGrain outlet, offers particle inlet tube on sidewall; In cylindrical shell, be back taper and be provided with gas distribution grid, itsTop is by fluidized bed body lower end closed, and bottom connects bulky grain outlet, makes gas distribution grid, bulky grainThe part cylindrical shell of outlet and gas-solid fluidized bed body and low head surround a closed space to particle, andThe barrel wall that this closed space is corresponding is provided with the tracheae that enters for introducing fluidizing gas.
The open CN102676206A of Chinese patent proposes a kind of gas-solid loop flow and mixes stripper and a kind of solidThe mixing of body particle and gas stripping process. Described gas-solid loop flow mixes stripper and comprises: have inner chamber cylindrical shell,Guide shell, annular space gas distributor, guide shell gas distributor, extend into the gas in described inner barrelBody outlet, described cylindrical shell lower end are connected, are arranged on described cone below hybrid solid particle with cone goes outMouthful, be positioned at loosening steam ring cone base and in hybrid solid particle outlet top and respectivelyThe first solid particle admission passage and the second solid particle that are connected in the inside of described cylindrical shell enterEnter passage. Shown in the mixing of solid particle adopt foregoing gas-solid loop flow mixing stripping with gas stripping processDevice.
In addition also there is the skill that realizes particle separation with arranging multiplayer screen cloth in existing fine powder separator,Art. In the process that separates meal and fine powder, there is particle separation inaccuracy, catalysis in above-mentioned isolation technics, in catalyst screening, there is being easy to occur meticulous or excessively thick particle in the shortcoming that agent screening is unconcentrated,Simultaneously these isolated fine graineds and coarse granule particle size range are too wide, are unfavorable for reclaiming and effective profitWith.
Utility model content
An object of the present utility model is to provide a kind of powder lot classifying apparatus, and this apparatus structure is simple, powderMaterial good separating effect.
Another object of the present utility model is to provide a kind of powder hierarchy system, and this powder hierarchy system makesThe powder lot classifying apparatus providing with the utility model.
To achieve these goals, according to an aspect of the present utility model, provide a kind of powder classification dressPut, comprise housing, this housing has charging aperture, and described housing also has the fine powder discharging opening that is positioned at topWith the meal discharging opening that is positioned at bottom, and powder stirring mechanism is installed in described housing, wherein saidPowder stirring mechanism comprises the rotating shaft on the roof that is rotatably connected to described housing, and in this rotating shaftBe connected with stirring oar.
According on the other hand of the present utility model, provide a kind of powder hierarchy system, this powder hierarchy systemThe powder lot classifying apparatus that uses the utility model to provide.
By technique scheme, like this, stir at powder with the powder of carrying wind to enter by charging apertureUnder the stirring of mechanism, reach meal and fine powder effectively separates by rotary centrifugal force and airflow function, whereinIn actual applications, can blower unit can be installed in the downstream of fine powder discharging opening, to help isolatingCompared with fine powder material with air-flow rise to the top of housing and from fine powder discharging opening discharge, fine powder can rely onAir-flow from the bottom to top and going out, drops to the bottom of housing and arranges from meal discharging opening compared with thick powderGo out.
Other feature and advantage of the present utility model give the detailed description of the invention part subsequently in detailExplanation.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms of descriptionPoint, be used from explanation the utility model with detailed description of the invention one below, but do not form this practicalityNovel restriction. In the accompanying drawings:
Fig. 1 is the structural representation of the powder lot classifying apparatus that provides of the utility model the first embodiment;
Fig. 2 is the structural representation of the powder lot classifying apparatus that provides of the utility model the second embodiment;
Fig. 3 is the structural representation of the powder lot classifying apparatus that provides of the utility model the 3rd embodiment;
Fig. 4 is the cutaway view of the powder lot classifying apparatus in Fig. 3;
Fig. 5 is the structure principle chart of the powder hierarchy system that provides of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated. Be to be understood thatBe, detailed description of the invention described herein is only for description and interpretation the utility model, and is not used in limitThe utility model processed.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use as " upper and lower,The end, top " situation of the normal work of the powder lot classifying apparatus that normally provides at the utility model embodimentUndefined, particularly can be referring to figs. 1 to the page described in Fig. 3, and " inside and outside " refers to phaseAnswer the interior and outer of parts profile.
As shown in Figures 1 to 4, the utility model provides three kinds of powder classification dresses by three embodimentsPut. In addition, the utility model also provides the powder that can apply these three kinds of embodiments as shown in Figure 5Hierarchy system. Powder lot classifying apparatus wherein and system are particularly useful for the classification of grained catalyst. BelowIn connection with accompanying drawing, each powder lot classifying apparatus of the utility model and hierarchy system are elaborated.
As shown in Figure 1, the powder lot classifying apparatus that the utility model the first embodiment provides comprises housing100, this housing 100 has charging aperture 101, is positioned at the fine powder discharging opening 102 at top and is positioned at bottomMeal discharging opening 103, and powder stirring mechanism 104 is installed, this powder shaker machine in housing 100Structure, for stirring the powder entering from charging aperture 101, like this, enters with conveying wind by charging aperture 101Powder under the stirring of powder stirring mechanism 104, reach meal by rotary centrifugal force and airflow functionAnd fine powder effectively separates, wherein in actual applications, can pacify in the downstream of fine powder discharging opening 102Dress blower unit, what go out to help separation can rise to air-flow the top of housing 100 compared with fine powder materialAnd discharge from fine powder discharging opening 102, fine powder can rely on air-flow from the bottom to top to carry, and thickerPowder drop to the bottom of housing 100 and discharge from meal discharging opening 103.
Wherein in the present embodiment, powder stirring mechanism 104 comprises and is connected in rotationally housing 100Sidewall on rotating shaft 105 and be connected to the stirring part 106 in this rotating shaft 105, this stirring part 106With being axially angle and being obliquely installed of rotating shaft 105. Particularly, stir the axial clamp of part 106 and rotating shaftAngle can be 45 °-60 °, for example 45 °. Thereby by the rotation of rotating shaft 105, be inclined at and turnStirring part 106 on axle 105 has larger axial stirring area, and can in neighboring area, stirMoving, stir the centrifugal force and the air-flow that form, meal is separated up and down with fine powder stirring and own wt,The set air inducing of 102 outlet will be taken out of with air-flow fine powder upwards, thereby fine powder is passed through effectivelyFine powder discharging opening 102 is discharged.
In the present embodiment, rotating shaft 105 vertically connects the sidewall with housing 100, so that rotating shaft105 and the sidewall of housing 100 between assembling, for example the two can pass through bearing assemble. In addition forThe rotation of rotating shaft 105 is also provided with the power set that are in transmission connection with rotating shaft 105 outside housing 100,For example motor is with the rotation of drive shaft 105. In other possible embodiments, rotating shaft 105 also canWith with the sidewall slope setting of housing 100.
In the present embodiment, stirring part 106 can be plate, for example circular metal plate, and rotating shaft 105Connect through this plate, for example welding. Thereby convenient structure and the connected mode of stirring part and rotating shaft simplified.Easy to process, the plectane wherein rotating can throw away powder towards surrounding in ground, and separating effect is better.In addition, plate can also not be the oar shape structure of plate for square plate or other, for example column.
In the present embodiment, rotating shaft 105 is multiple and arranges along short transverse interval. Thereby lifting powderThe stirring effect of material, further, the rotating shaft 105 that is positioned at the top from the sidewall of housing 100 towards enteringMaterial mouthful 101 extensions. Thereby the powder that makes just to enter in housing 100 is stirred and is increased separationClassification efficiency.
In addition, as shown in Figure 1, adjacent rotating shaft 105 is connected on the sidewall that housing 100 is relative,And the incline direction of adjacent described stirring part 106 is contrary, can make like this two rotating shafts 105Between region form the air-flow of mutual disturbance, then increase the stirring effect of powder, be convenient to air-flow betterGround separates fine powder from meal, thereby passes through the fine powder discharging opening at housing 100 tops under airflow function102 discharge, thereby efficiently complete powder classification. In addition in the present embodiment, stir effect in order to increaseRate, stir part 106 and be multiple and along the axially spaced-apart setting of rotating shaft 105, in every rotating shaft 105It is also multiple stirring part 106.
In the present embodiment, discharge from the bottom of housing 1 for the ease of meal, housing 100 comprisesUnder cylindrical section 107 and the conical section 108 of joining, charging aperture 101 is positioned at the sidewall of cylindrical section 107, thinPowder discharging opening 102 is positioned at the sidewall top of cylindrical section 107 and charging aperture 101 opposite sides, meal discharging opening103 are positioned at the bottom cone point of conical section 108, and the meal being thrown to like this on housing 1 sidewall can pass throughThe convergent of conical section 108 and converge to meal discharging opening, thus avoid accumulating powder in housing 1 and causePowder waste. In addition fine powder discharging opening 102 be positioned at the opposite side of charging aperture 101 can be so that the row of fine powderGo out.
Wherein, in order to ensure that charging aperture 101 is positioned at fine powder discharging opening with the separating effect of carrying wind to enter102 and meal discharging opening 103 between, three's in the vertical direction staggers, and therefore can not make justThe powder entering is directly discharged by fine powder discharging opening 102 with carrying wind, but by powder shaker machineThe stirring of structure makes the fine powder of being kicked up, and under the drag force effect of air-flow and from discharging opening 102, discharges.In addition, excessive and affect discharging efficiency for fear of fine powder lift, further preferably, charging aperture 101And erecting between the vertical distance between fine powder discharging opening 102 and charging aperture 101 and meal discharging opening 103Straight ratio of distances constant is that 1:1-1:6 is for example 1:3～1:6. , charging aperture 101 approaches and fine powder discharging moreMouth 102 arranges. It should be noted that in addition the charging aperture in present embodiment, fine powder discharging opening and thickThe above-mentioned set-up mode of powder discharging opening is equally applicable to following second and the 3rd in embodiment.
In specific works, taking catalyst as example, can discharge in order to realize fine powder and meal, can be byThe catalyst of for example spray shaping is according to certain speed, for example logical by carrying wind to carry grained catalystCrossing charging aperture 101 enters in housing 1. In addition, the downstream of fine powder discharging opening 102 and meal discharging opening 103 alsoAspirator can be all set, to complete fine powder that classification completes and the discharge of meal by pull of vacuum.In addition, in specific works, rotating shaft 105 is with the rotating speed rotation of for example 300-500r/min, according to catalystParticle requirement is selected, and fine powder discharging opening 102 obtains the thinnest relative catalyst granules, and (what be commonly called as urgesAgent fine powder, general particle diameter is less than 20 μ m).
The above-mentioned powder lot classifying apparatus of having introduced in the first embodiment, introduces in detail below in conjunction with Fig. 2Two implement the powder lot classifying apparatus in protection method.
The powder lot classifying apparatus that the utility model the second embodiment provides comprises housing 200, this housing 200Have charging aperture 201, housing 200 also has and is positioned at the fine powder discharging opening 202 at top and is positioned at bottomMeal discharging opening 203, and powder stirring mechanism 204 is installed, this powder shaker machine in housing 200Structure 204 is for stirring the powder entering from charging aperture 201, like this, by charging aperture 201 with carrying windThe powder entering, under the stirring of powder stirring mechanism 204, reaches by rotary centrifugal force and airflow functionMeal and fine powder effectively separate, wherein in actual applications, and can in the downstream of fine powder discharging opening 202So that blower unit to be installed, to help the isolated top that rises to housing 200 with air-flow compared with fine powder material alsoDischarge from fine powder discharging opening 202, fine powder can rely on air-flow from the bottom to top and go out, and thicker powderMaterial drops to the bottom of housing 200 and discharges from meal discharging opening 203.
Particularly, the powder stirring mechanism 204 that the utility model the second embodiment provides comprises rotatablyBe connected to the rotating shaft 205 on the roof of housing 200, and in this rotating shaft 205, be connected with and stir oar 212.Therefore, in the present embodiment, powder stirring mechanism 204 is realized stirring powder by the mode stirringMoving. Wherein, stirring under the stirring action of oar 212, the powder in housing 1 is stirred, and logicalCross and stir the rotary centrifugal force and the airflow function that produce, meal and fine powder are stirred and own wt divides up and downFrom, the set air inducing of 202 outlet will be taken out of with air-flow fine powder upwards, thereby realizes meal and fine powderClassification.
In the present embodiment, rotating shaft 205 is extended vertically downward from roof, so that rotating shaft 205 and topWall is joined. And stir oar 212 and extend perpendicular to rotating shaft 205 ground, thereby the stirring of extending towards sidewallOar 205 can be realized the stirring to powder 1 by the swirling eddy producing when rotated. Now, pass throughThe air-flow of centrifugal force and generation separates fine powder from meal. Further, it is multiple stirring oar 212And along the axially spaced-apart setting of rotating shaft 205, and each paddle 212 has multiple edges circumferentially uniformly-spacedThe blade of arranging. Thereby make all have stirring effect in the inherent short transverse of housing 1, multiple bladesMake powder stirring effect better. Wherein stirring oar 212 can be propeller form, thereby revolves in generationTurn in the situation of air-flow, can also in the short transverse of housing 1, produce air-flow upwards to divide betterFrom fine powder. Further, the airflow direction that the multiple stirring oars that arrange vertically produce is identical, with moreEffectively separate fine powder, discharge from fine powder discharging opening to be convenient to better fine powder.
In addition, in the present embodiment, housing 200 comprises join successively up and down cylindrical section 206 and circular coneSection 207, charging aperture 201 is positioned at the sidewall of cylindrical section 206, and fine powder discharging opening 202 is positioned at cylindrical section 206With the sidewall top of charging aperture 201 opposite sides, meal discharging opening 203 is positioned at the bottom of conical section 207.Thereby be convenient to meal and complete collecting to meal discharging opening 203 by conical section 207. In addition, charging aperture201 between fine powder discharging opening 202 and meal discharging opening 203, and charging aperture 201 goes out with fine powderVertical apart from it between vertical distance between material mouthfuls 202 and charging aperture 201 and meal discharging opening 203Than for 1:1-1:6, for example, be 1:3-1:6, to complete better the discharge of fine powder.
More specifically, conical section 207 comprises and joining successively up and down and cone angle becomes large multiple cone section successively. ThisSample, the conical section 207 changing by cone angle, can make larger meal particle first heavy from several cone sectionsThe meal discharging opening 203 that drops to bottom is discharged, and other less meal particles are according to rolling in cone sectionMoving sedimentation capacity and progressively along section sedimentation of each cone, like this, under the pattern of feed at intermittence, the identical period entersMeal in the powder entering can be discharged from the meal discharging opening 203 of bottom with the different time. As Fig. 2Shown in, as a kind of embodiment, multiple cone sections comprise the first cone section 208, second of joining successively up and downCone section 209 and third hand tap section 210, the first cone sections 208 are joined with cylindrical section 206, third hand tap section 210Bottom be less than the cone of the first cone section 210 to being connected to the cone angles of the 4th cone section 211, the four cone sections 211Angle, and meal discharging opening 103 is positioned at the bottom cone angle of the 4th cone section 211. , the 4th cone section 211Cone angle minimum is convenient to the discharge that collects of powder. And the first cone section 208, the second cone section 209 and third hand tap sectionIt is large that 210 cone angle progressively becomes, thereby ensure that the larger meal of particle falls in advance. This set is multipleThe mode of cone section except can apply with present embodiment in, also can apply first or the 3rd in embodiment.
Particularly, the cone angle of the first cone section 208 can be 15 °-20 °, the cone angle of the second cone section 209The cone angle that can be 20 ° of-35, the third hand tap sections 210 can be 35 °-60 °, the cone of the 4th cone section 211Angle can be 1 °-5 °. In addition, in order to tackle the conical section 207 of convergent, spaced verticallyThe radical length of multiple stirring oars 212 reduces from top to bottom gradually, to make the meal can be smoothly along sidewallSlide, and ensure the steady air current in housing 1. More specifically, stir oar 212 and can be three,Corresponding first, second, and third to bore section respectively.
In specific works, rotating shaft 205 can be with the rotating speed rotation of for example 300-500r/min, according to catalysisAgent particle requirement is selected, and fine powder discharging opening 202 obtains the thinnest catalyst granules relatively, general grainFootpath is less than 20 μ m.
The above-mentioned powder lot classifying apparatus of having introduced in the second embodiment, introduces the 3rd in fact below in conjunction with Fig. 3Execute the powder lot classifying apparatus in mode.
The powder lot classifying apparatus that the utility model the 3rd embodiment provides comprises housing 300, this housing 300Have charging aperture 301, housing 300 also has and is positioned at the fine powder discharging opening 302 at top and is positioned at bottomMeal discharging opening 303, and powder stirring mechanism 304 is installed, this powder shaker machine in housing 300Structure, for stirring the powder entering from charging aperture 301, like this, enters with conveying wind by charging aperture 301Powder under the stirring of powder stirring mechanism 304, reach meal by rotary centrifugal force and airflow functionAnd fine powder effectively separates, wherein in actual applications, can pacify in the downstream of fine powder discharging opening 302Dress blower unit, go out to help separation compared with fine powder material with air-flow rise to the top of housing 300 and fromFine powder discharging opening 302 is discharged, and fine powder can rely on air-flow from the bottom to top to carry, and thickerPowder drops to the bottom of housing 300 and discharges from meal discharging opening 303.
In the present embodiment, wherein powder stirring mechanism 304 comprises along vertical axis and being rotatably mountedCylindrical shell 305 in housing 300, the sidewall spacers setting of the sidewall of this cylindrical shell 305 and housing 300 alsoAnd be distributed with respectively along the axial and circumferential directions multiple screening passages 306, sieve passage 306 simultaneously axiallyWith upwards have in week multiplely, and be fixed with to projecting inward stirring sheet 307 on the inwall of this sidewall. CauseThis, by the rotation of cylindrical shell 305, the stirring sheet 307 in cylindrical shell 305 can stir powder,Now in cylindrical shell, can produce swirling eddy, stir under the centrifugal force and airflow function forming mealCan be mainly by screening passage 306 throw away cylindrical shell 305 and be deposited in opposite directions meal discharging opening 303 andDischarge, fine powder can rely on airflow function be from the bottom to top carried to fine powder discharging opening 302 and discharge,Thereby meal is separated up and down with fine powder stirring and own wt.
Wherein, in the present embodiment, the sidewall of cylindrical shell 305 is formed as by axial stem 308 and circular rod309 intersect the cell structure forming, and screening passage 306 is grate opening, like this can be by simple knotStructure is realized the formation of multiple screening passages 306, and the intensity of this structure can be guaranteed. At itIn his embodiment, on cylindrical shell 305, can also be rolled into and process multiple screening passages 306 by entire plate.
In addition, in the present embodiment, in order to realize the stirring to powder, a kind of embodiment is, stirsMoving plate 307 is formed as, along the helical structure of downward-extension on the inwall of cylindrical shell 305, turning like this at cylindrical shell 305When moving, so not only can produce swirling eddy at cylindrical shell 305 and stir powder, but also can make to bring about the desired sensationStream has the trend moving upward to help separating fine powder, thereby makes the grading effect of powder better. ShouldIn embodiment, stirring sheet 307 can be one and also can be many.
In addition another embodiment is, as shown in Figure 4, stirring sheet 307 is many, these many stirring sheetsEach stirring sheet in 307 is formation structure in one plane, and respectively with cylindrical shell 305Axis is angle and is in tilted layout. Thereby in the time that cylindrical shell 305 rotates, equally can be the interior shape of cylindrical shell 305Become oriented mobile air-flow to separate fine powder. Particularly, the axis of stirring sheet 307 and cylindrical shell 305Angle is 30 °-60 °, for example 45 °. In addition preferably, many stirring sheets 307 lay respectively at multipleIn the plane being parallel to each other, the plane at each stirring sheet place be parallel to each other and, thereby by cylindrical shell 305Axially upper spaced multiple stirring sheets can make in cylindrical shell 305 all can shape in short transverseBecome air-flow, to promote the effect that meal throws away and fine powder separates.
As a kind of rotating manner of cylindrical shell 300, as shown in Figure 3 and Figure 4, cylindrical shell 305 erects by edgeThe rotating shaft 310 of straight axis is installed on the roof of housing 300, between rotating shaft 310 and cylindrical shell 305, passes throughMany joint pins 311 are connected. So both can realize the rotation of cylindrical shell 300 along vertical axis, again couldSimplified structure, makes powder to pass in and out cylindrical shell 305 by the gap between many joint pins 311. ?In other embodiments, cylindrical shell 300 can also be realized edge by variety of ways such as chain transmission, gear drivesThe rotation of vertical axis.
In addition, in order realizing, powder to be carried out to more multistage separation, as shown in Figure 3, on housing 300, to go backBe provided with middle part discharging opening 312, this middle part discharging opening 312 is positioned at meal discharging opening 303 and fine powder dischargingBetween mouth 302. Like this from middle part discharging opening 312 and the particle diameter of the powder going out will be between fine powder discharging opening302 and meal discharging opening 303 go out between the particle diameter of powder. More preferably, middle part discharging opening 312 isMultiple, for example two and be disposed on along short transverse on the sidewall of housing 300, to realize powderMore multistage separation. The mode of this set middle part discharging opening 312 is except applying in the present embodiment, alsoCan be applied in the first and second embodiments.
In the present embodiment, housing 300 comprises cylindrical section 313 and the conical section 314 of joining up and down,Charging aperture 301 is positioned at the sidewall of cylindrical section 313, and fine powder discharging opening 302 is positioned at cylindrical section 313 and chargingThe sidewall top of mouth 301 opposite sides, meal discharging opening 303 is positioned at the bottom cone point of conical section 314. FromAnd avoid the powder in housing 1 to accumulate. In addition, charging aperture 301 is positioned at fine powder discharging opening 302 and mealBetween discharging opening 303, and vertical distance and charging between charging aperture 301 and fine powder discharging opening 302Vertical ratio of distances constant between mouth 301 and meal discharging opening 303 is 1:1-1:6, for example 1:3～1:6,To complete better the discharge of fine powder.
In specific works, rotating shaft 305 can be with the rotating speed rotation of for example 300-500r/min, according to catalysisAgent particle requirement is selected, and fine powder discharging opening 302 obtains the thinnest catalyst granules relatively, general grainFootpath is less than 20 μ m. In addition, in the time not needing to use middle part discharging opening 312, can be at middle part discharging opening 312The dismountable blind plate of upper installation. Thereby the alternative that realizes middle part discharging opening 312 is used.
The above-mentioned powder lot classifying apparatus of having introduced in three kinds of embodiments, introduces this practicality below in conjunction with Fig. 5The novel powder hierarchy system providing, wherein, powder hierarchy system comprises multiple powder lot classifying apparatus, itsIn each powder lot classifying apparatus all there is the separating power of meal and fine powder, particularly, each powder classificationDevice comprises housing 300, and this housing 300 has charging aperture 301, and housing 300 also has the top of being positioned atFine powder discharging opening 302 and be positioned at the meal discharging opening 303 of bottom, and in housing 300, use is installedIn the powder stirring mechanism 304 that stirs the powder entering from charging aperture 301, this powder stirring mechanism is used forStir the powder that enters from charging aperture 301, and be positioned at the fine powder discharging of the powder lot classifying apparatus in downstreamThe downstream of mouth 302 is provided with blower unit. Like this, the powder entering with conveying wind by charging aperture 301Under the stirring of powder stirring mechanism 304, reach meal and fine powder by rotary centrifugal force and airflow functionEffectively separate, and under the effect of blower unit, can make to separate and go out compared with fine powder material with air-flowRise to the top of housing 300 and discharge from fine powder discharging opening 302, that is, fine powder can rely on by extremely upperUnder air-flow carry, compared with thick powder drop to housing 300 bottom and from meal discharging opening303 discharge.
In order more subtly powder to be carried out to classification, the powder hierarchy system providing at the utility modelIn, be positioned at the charging aperture 301 and powder lot classifying apparatus thick that is positioned at upstream of the powder lot classifying apparatus in downstreamPowder discharging opening 303 or fine powder discharging opening 302 are communicated with. Like this, the powder classification system that the utility model providesSystem can enter by the meal or the fine powder that are positioned at after the grading plant in downstream separates upstream deviceOne step separates, thereby accurately obtains the powder of required rank.
As shown in Figure 5, in the present embodiment, in order to meet the fine powder of more difficult accurate acquisition in technique,The fine powder discharging opening 302 that is positioned at the powder lot classifying apparatus of upstream is in series with multistage powder classification dress successivelyPut, in this multistage powder lot classifying apparatus, be positioned at the charging aperture 301 and position of the powder lot classifying apparatus in downstreamFine powder discharging opening 302 in the powder lot classifying apparatus of upstream is communicated with. Therefore, can be to the fine powder in powderCarry out separating for several times, like this, the fine powder precision of discharging in the fine powder discharging opening in each powder lot classifying apparatusRaise gradually. Further in the present embodiment, can only carry out twice separation for meal,The meal discharging opening 303 that, is positioned at the powder lot classifying apparatus of upstream is communicated with a powder lot classifying apparatus.In other embodiments, on also can meal discharging opening 303, be in series with multiple powder lot classifying apparatus and onlyBe communicated with a powder lot classifying apparatus at fine powder discharging opening 302.
It should be noted that, what the powder hierarchy system in Fig. 5 was used is that the utility model is with the above-mentioned the 3rdPowder lot classifying apparatus in embodiment, in other embodiments, the powder classification of the utility model bodySystem can also be used the powder lot classifying apparatus in first, second embodiment, or can make simultaneouslyWith first, second, third powder lot classifying apparatus, all drop on guarantor of the present utility model for these distortionProtect in scope.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail, still, this practicality is newType is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present utility model,Can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to this realityWith novel protection domain.
It should be noted that in addition each the concrete technology spy described in above-mentioned detailed description of the inventionLevy, in reconcilable situation, can combine by any suitable mode, for fear of needn'tThe repetition of wanting, the utility model is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present utility model, also can be combined, onlyWant it without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (12)
1. a powder lot classifying apparatus, it is characterized in that, comprise housing (200), this housing (200) has charging aperture (201), it is characterized in that, described housing (200) also has the meal discharging opening (203) that is positioned at the fine powder discharging opening (202) at top and is positioned at bottom, and powder stirring mechanism (204) is installed in described housing (200), wherein said powder stirring mechanism (204) comprises the rotating shaft (205) on the roof that is rotatably connected to described housing (200), and in this rotating shaft (205), be connected with and stir oar (212).
2. powder lot classifying apparatus according to claim 1, is characterized in that, described rotating shaft (205) is extended vertically downward from described top.
3. powder lot classifying apparatus according to claim 1, it is characterized in that, described stirring oar (212) is multiple and along the axially spaced-apart setting of described rotating shaft (205), and each paddle (212) has the blade that multiple edges are circumferentially uniformly-spaced arranged.
4. powder lot classifying apparatus according to claim 3, is characterized in that, described multiple stirring oars (212) are formed as propeller arrangement.
5. powder lot classifying apparatus according to claim 1, it is characterized in that, described housing (200) comprises join successively up and down cylindrical section (206) and conical section (207), described charging aperture (201) is positioned at the sidewall of described cylindrical section (206), described fine powder discharging opening (202) is positioned at the sidewall top of described cylindrical section (206) and described charging aperture (201) opposite side, and described meal discharging opening (203) is positioned at the bottom of described conical section (207).
6. powder lot classifying apparatus according to claim 5, is characterized in that, described conical section (207) comprises joins and cone angle becomes large multiple cone section successively up and down successively.
7. powder lot classifying apparatus according to claim 6, it is characterized in that, described multiple cone section comprises the first cone section (208) of joining successively up and down, the second cone section (209) and third hand tap section (210), described the first cone section (208) is joined with described cylindrical section (206), the bottom of described third hand tap section (210) is to being connected to the 4th cone section (211), the cone angle of the 4th cone section (211) is less than the cone angle of described the first cone section (210), and described meal discharging opening (103) is positioned at the bottom cone angle of described the 4th cone section (211).
8. powder lot classifying apparatus according to claim 7, it is characterized in that, the cone angle of described the first cone section (208) is 15 °-20 °, the cone angle of described the second cone section (209) is 20 °-35, the cone angle of described third hand tap section (210) is 35 °-60, and the cone angle of described the 4th cone section (211) is 1 °-5 °.
9. according to the powder lot classifying apparatus described in any one in claim 5-8, it is characterized in that, described stirring oar (212) is multiple and along the axially spaced-apart setting of described rotating shaft (205), and the radical length of the plurality of stirring oar (212) reduces from top to bottom gradually.
10. powder lot classifying apparatus according to claim 1, it is characterized in that, described charging aperture (201) is positioned between described fine powder discharging opening (202) and described meal discharging opening (203), and vertical ratio of distances constant between vertical distance and described charging aperture (201) and described meal discharging opening (203) between described charging aperture (201) and described fine powder discharging opening (202) is 1:1-1:6.
11. powder lot classifying apparatus according to claim 10, it is characterized in that, the vertical ratio of distances constant between the vertical distance between described charging aperture (201) and described fine powder discharging opening (202) and described charging aperture (201) and described meal discharging opening (203) is 1:3-1:6.
12. 1 kinds of powder hierarchy systems, it is characterized in that, described powder hierarchy system comprises multiple according to the powder lot classifying apparatus described in any one in claim 1-11, the described charging aperture (201) that is wherein positioned at the powder lot classifying apparatus in downstream is communicated with described meal discharging opening (203) or the described fine powder discharging opening (202) of the powder lot classifying apparatus that is positioned at upstream, and the downstream that is positioned at the fine powder discharging opening (102) of the powder lot classifying apparatus in downstream is provided with blower unit.
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| CN201520744520.3U CN205253566U (en) | 2015-09-23 | 2015-09-23 | Powder grading plant , system |
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| CN201520744520.3U CN205253566U (en) | 2015-09-23 | 2015-09-23 | Powder grading plant , system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113935A (en) * | 2016-10-28 | 2019-08-09 | 曼莎米·贝拉尼安 | Winnowing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113935A (en) * | 2016-10-28 | 2019-08-09 | 曼莎米·贝拉尼安 | Winnowing machine |
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