CN102441529B - Micropowder removal device - Google Patents

Micropowder removal device Download PDF

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Publication number
CN102441529B
CN102441529B CN201110315508.7A CN201110315508A CN102441529B CN 102441529 B CN102441529 B CN 102441529B CN 201110315508 A CN201110315508 A CN 201110315508A CN 102441529 B CN102441529 B CN 102441529B
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China
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inner core
filter
micropowder
sidewall
mixed gas
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CN102441529A (en
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马场和弘
种泽岳志
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Unitech Co Ltd
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Unitech Co Ltd
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  • Combined Means For Separation Of Solids (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cyclones (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The shape that it is an object of the invention to provide device can freely design, and the micropowder removal device of holdup time that mixed gas can be extended in filter plane.The means realizing the object of the invention are, this device possesses inner core (10) and urceolus (20), in the sidewall of inner core (10), on the direction of principal axis of the central shaft (11) of inner core (10), sidewall with urceolus (20) overlaps the filter (30) being formed as porous at least partially of part, setting makes air (1) flow into the inflow pipe (60) in inner core (10) with the mixed gas (3) of granule (2), the effuser (70) flowed out outward to urceolus (20) together with the micropowder (4) comprised in the air (1) made by filter hole (31) mixed gas (3) in flowing into inner core (10) is set simultaneously.Filter hole (31) is formed as the elongated hole in rectangular direction with the central shaft (11) of inner core (10) in the longitudinal direction.

Description

Micropowder removal device
Technical field
The present invention relates to remove the micropowder removal device of micropowder from bulk material.
Background technology
Patent documentation 1,2 discloses the example of a kind of structure removing micropowder from bulk material.This structure is in cylindrical shape Sleeve pipe is provided above supply pipe, arranges suction catheter, arrange the cylindrical shape mistake that sidewall is formed as netted in sleeve pipe below sleeve pipe Filter.Constitute supply pipe with flexible pipe or pipe arrangement and be connected to the containers that plastic resin granule (one of bulk material example) enters, use The suction catheter that flexible pipe or pipe arrangement are constituted is connected on air-introduced machine.When granule is constituted with air (one of conveying gas of bulk material example) Mixed gas enter from supply pipe flow, rotate along filter inwall and decline, utilize what this spiral flow produced to be centrifuged Power effect, makes on granule the powder (one of micropowder example) of attachment be located away from the inside and outside of filter wall with granule, the air containing powder from Suction catheter is discharged, and the opening from filter lower end of the granule after gumming falls.
Patent documentation 2 proposes following technical scheme, i.e. as the air suction port of suction catheter, is formed and is used for supply pipe The big bore of bulk material suction inlet, and ratio will be arranged to from this sleeve pipe center of circle from the sleeve pipe center of circle to the distance of air suction port Bigger to the seated position distance of bulk material suction inlet, the air-flow along the mixed gas of filter inwall flowing is formed as spiral Shape, extends the mixed gas holdup time in filter plane, on the filter, flows in the shape of a spiral at the inwall along filter Mixed gas air-flow (not controlled " free stream ") flow direction on be arranged the filter hole of elongated hole-shape, also Fibrous, bar-shaped object can be separated from bulk material.
Patent documentation 1: Japanese Unexamined Patent Publication 2007-50354 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2009-273969 publication
Summary of the invention
In the case of removing micropowder from bulk material as mentioned above, if it is possible to extend mixed gas in filter plane Holdup time, then can improve micropowder removal efficiency.But the technology disclosed in patent documentation 2, the restriction of device shape It it is a problem.
It is an object of the invention to, it is provided that can freely design the shape of device, and mixed gas can be extended in mistake The micropowder removal device of the holdup time on filter face.
To achieve these goals, the micropowder removal device of the 1st invention of the present invention, possess inner core and outside this inner core The urceolus of configuration, in the sidewall of described inner core, overlaps with described outer tube side wall on the direction of principal axis of the central shaft of described inner core The filter being formed as porous at least partially of part, arranges the conveying gas making bulk material and described powder in described inner core The inflow entrance that the mixed gas of plastochondria flows into, arranges simultaneously and makes by the described conveying gas of described filter hole and flow into institute State the flow export that the micropowder contained in the described mixed gas in inner core flows out together outside described urceolus, it is characterised in that institute State on filter arrange, the free stream of the described mixed gas that the inwall along described filter is flowed in the shape of a spiral, from than The direction of this free stream closer to and with the central shaft of described inner core in from be bordering on the direction of right angle orientation to described inner core The guider that 1 direction in the direction that central shaft is rectangular guides.
The micropowder removal device provided as the 2nd invention, is in the 1st invention, and described guider, by along described filter The free stream of the described mixed gas that inwall flows in the shape of a spiral, guides to the direction rectangular with described inner core central shaft.
As the micropowder removal device of the 3rd invention, possess inner core and the urceolus configured outside this inner core, described inner core In sidewall, being formed as at least partially of the part that overlaps with described outer tube side wall on the direction of principal axis of the central shaft of described inner core The filter of porous, arranges in described inner core and makes the conveying gas of bulk material and the mixed gas of described bulk material flow into Inflow entrance, the micropowder comprised in the described mixed gas making in flowing into described inner core is set simultaneously together with by described filter The flow export that the described conveying gas in hole flows out outside described urceolus, it is characterised in that described filter hole, is formed as length side Elongated hole on the rectangular direction of inner core central shaft described in Xiang Yu.
The micropowder removal device provided as the 4th invention, is characterized in that in any one invention in the 1st～3, described mistake Filter, when described inner core central shaft is plumb line, forms the shape the most increasingly narrowed along plumb line direction.
If using the 1st invention, guider being set on the filter, utilizes this guider, by along described filter The free stream of the described mixed gas that wall flows in the shape of a spiral, from than this free stream direction closer to and with inner core Mandrel guides, therefore, it is possible to make in 1 direction in the direction to the direction rectangular with described inner core central shaft that are bordering on right angle orientation The air-flow of the mixed gas in filter forms the little helical form of so-called lead angle.Dress can be freely designed thus, it is possible to provide The shape put, and the micropowder removal device of the time that mixed gas is detained in filter plane can be extended.
If using the 2nd invention, guider is set on the filter, by means of this guider, it is possible to will be along filter The free stream of mixed gas that flows in the shape of a spiral of inwall be directed to right angle on the direction of the central shaft of inner core, therefore can Enough the air-flow of the mixed gas in filter is formed as the helical form that lead angle is less.Thus, it is possible to extend mixing further The gas holdup time in filter plane.
If use the 3rd invention, filter hole be formed as length direction with on the described rectangular direction of inner core central shaft Elongated hole so that centrifugal action is in the mixed gas flowed in the shape of a spiral along the inwall of filter, therefore in mixed gas Bulk material move on the limit of length direction along filter hole in filter, the inwall along filter flows in the shape of a spiral The free stream of mixed gas be drawn towards the length direction of filter hole.So, filter hole is as will be along filter The free stream of mixed gas that flows in the shape of a spiral of inwall, serve and guide to the direction rectangular with the central shaft of inner core Guider effect, it is possible to make the flowing of the mixed gas in filter be formed as the little helical airflow of lead angle, and The flowing of the mixed gas in filter can be formed as the helical form making lead angle less, therefore, it is possible to extend mixed further Close the gas holdup time in filter plane.Thus, it is possible to provide the shape that can freely design device, and can extend mixed Close the micropowder removal device of gas holdup time in filter plane.
If using the 4th invention, when the inner core central shaft of filter is on plumb line direction, formed along plumb line direction The most downward more narrow shape so that as being arranged at the guider of filter, can use and be formed as, from than this free stream Direction closer to and with the central shaft of described inner core in from being bordering on the direction of right angle orientation to rectangular with described inner core central shaft Direction more lean on from the direction of the free stream of the mixed gas flowed in the shape of a spiral along the inwall of filter than length direction Near and with the central shaft of inner core in from being bordering on the direction of the right angle orientation length to 1 direction in direction rectangular with inner core central shaft The filter hole in hole or be formed as the filter hole of the elongated hole in rectangular direction with the central shaft of inner core, now, filter hole Length direction following is than top closer to inner core central shaft, and the following probability in bulk material contact filtration device hole can be bigger, mistake Filter hole can play guide function effectively.
Accompanying drawing explanation
Fig. 1 represents the overall structure of the micropowder removal device of the embodiment of the present invention 1.
Fig. 2 represents the outward appearance of the micropowder removal device of embodiment 1, (A) front view, (B) top view, (C) side view.
Fig. 3 is the sectional side view of the filter of the micropowder removal device representing embodiment 1.
Fig. 4 represents the shape of the filter hole of the micropowder removal device of embodiment 1.
What Fig. 5 represented the micropowder removal device of embodiment 1 makes use-case.
Fig. 6 is the side view of the air flowing in the micropowder removal device representing embodiment 1.
Fig. 7 is the top view of the air flowing in the micropowder removal device representing embodiment 1, and (A) is to represent inflow oral area Air flowing top view, (B) be represent separated part air flowing top view, (C) be represent flow out oral area air The top view of flowing.
Fig. 8 represents the various effects of the filter hole (guider) of the micropowder removal device of embodiment 1.
Fig. 9 represents the effect of the filter hole (guider) of the micropowder removal device of embodiment 1.
Figure 10 represents the variation of the guider of the micropowder removal device of embodiment 1, and (A) is the top view of filter, (B) Be filter be sectional side view.
Figure 11 is the sectional side view of the filter of another variation of the guider of the micropowder removal device representing embodiment 1.
Figure 12 represents the overall structure of the micropowder removal device of the reference example that the micropowder removal device with embodiment 1 compares.
Figure 13 is the sectional side view of the filter of the micropowder removal device representing reference example.
Figure 14 represents the overall structure of the micropowder removal device of the embodiment of the present invention 2.
Figure 15 represents the outward appearance of the micropowder removal device of embodiment 2, (A) front view, (B) top view, (C) side view.
Figure 16 represents that the 2nd inflow entrance of the micropowder removal device to embodiment 2 provides the air supply means of air.
Figure 17 is the side view of the air flowing in the micropowder removal device representing embodiment 2.
Figure 18 is the top view of the flowing of the air in the micropowder removal device representing embodiment 2, and (A) is to represent inflow entrance The top view (B) of the air flowing in portion is the top view of the air flowing representing separated part, and (C) is the air representing and flowing out oral area The top view of flowing.
Figure 19 represents the overall structure of the micropowder removal device of the embodiment of the present invention 3.
Figure 20 represents the outward appearance of the micropowder removal device of embodiment 3, and (A) is front view, and (B) is top view, and (C) is side view.
Figure 21 is the sectional side view of the filter of the micropowder removal device representing embodiment 3.
Figure 22 is the side view of the flowing of the air in the micropowder removal device representing embodiment 3.
Figure 23 is the top view of the flowing of the air in the micropowder removal device representing embodiment 3, and (A) is for representing separated part The top view of air flowing, (B) is to represent that the outflow top view of flowing of air of oral area, (C) represent inflow oral area The top view of the flowing of air.
Figure 24 is shown in the overall structure of the micropowder removal device being the reference example that example 3 micropowder removal device compares.
Description of reference numerals
1 air (conveying gas)
2 granules (bulk material)
3 mixed gas
4 micropowders
10,140 inner core
11,141 central shaft
20 150 urceolus
30,130,300,500 filter
31,131,501,502 filter hole (guiding)
32 outthrust (guide)
60,180 pipe (inflow entrance) is flowed into
70,190 effusers (flow export)
Detailed description of the invention
Below according to embodiment shown in the drawings, the embodiment of the present invention (invention of 1 to the 4th) is illustrated.
Embodiment 1
Referring to Fig. 1～Figure 13, the micropowder removal device of embodiment 1 is illustrated.Fig. 1 represents the micropowder of embodiment 1 The population structure of removal device, Fig. 2 represents the outward appearance of the micropowder removal device of embodiment 1, and (A) is front view, and (B) is for overlooking Figure, (C) is side view, and Fig. 3 represents the sectional side view of the filter of the micropowder removal device of embodiment 1, and Fig. 4 represents embodiment 1 The shape of filter hole of micropowder removal device, what Fig. 5 represented the micropowder removal device of embodiment 1 makes use-case, and Fig. 6 represents real Executing the side view that example 1 is the air flowing in micropowder removal device, Fig. 7 is the sky in the micropowder removal device representing embodiment 1 The top view of flow of air, (A) is the top view of the air flowing representing and flowing into oral area, and (B) is the air flowing representing separated part Top view, (C) be represent flow out oral area air flowing top view, Fig. 8 represents the mistake of the micropowder removal device of embodiment 1 The various effects in filter hole (guider), Fig. 9 represents the work of the filter hole (guider) of the micropowder removal device of embodiment 1 With, Figure 10 represents the variation of the guider of the micropowder removal device of embodiment 1, and (A) is the top view of filter, and (B) was Filter is sectional side view, and Figure 11 is the filter side of other variation of the guider of the micropowder removal device representing embodiment 1 Profile, Figure 12 represents the population structure of the micropowder removal device of the reference example that the micropowder removal device with embodiment 1 compares, figure 13 is the sectional side view of the filter of the micropowder removal device representing reference example.
As shown in Figure 1 and Figure 2, the micropowder removal device of the present embodiment, by comprising the inner core 10 of filter 30 and at inner core Platen 40 that the urceolus 20 of the arranged coaxial outside 10 and micropowder removal device are arranged and upper cover 50 etc. are constituted.
As it is shown on figure 3, filter 30, in the sidewall by inner core 10, on the direction of principal axis of the central shaft 11 of inner core 10 with The sidewall of urceolus 20 overlaps at least some of composition of part, simultaneously for making the mixed gas 3 (reference in flowing into inner core 10 Fig. 5～Fig. 7) in the micropowder 4 of plastic resin granule 2 (example of bulk material) be separated to the outside of sidewall of inner core 10, be formed When the central shaft 11 of inner core 10 is on plumb line direction, more toward reverse frustoconic the narrowest below vertical and the most whole at it The upper setting of individual sidewall (side) only makes the air 1 in mixed gas 3 and micropowder 4 arranging in intersecting by (granule 2 can not pass through) The most several filter holes 31 such as row combination shape.The sidewall of this filter 30 is made up of punch metal plate.
As shown in Figure 4, each filter hole 31, form what the central shaft 11 of its length direction and inner core 10 was gone up in vertical direction Elongated hole, as the air-flow 5 (with reference to Figure 12) of the mixed gas 3 flowed in the shape of a spiral by the inwall (filter plane) along filter 30 The vertical direction (being horizontal direction when the central shaft 11 of inner core 10 is on plummet direction) of the central shaft 11 guiding inner core 10 guides Guider.
Also, each filter hole 31 is disposed on the guider of filter 30, as being spiral shell by the inwall along filter 30 The free stream 5 of the mixed gas 3 of rotation shape flowing is directed to from the direction than this free stream closer to the center with inner core 10 The rectangular direction of axle 11, to the guider in 1 direction of angular regions θ in the direction rectangular with the central shaft 11 of inner core 10, is formed As the free stream 5 of the mixed gas 3 that the inwall along filter 30 flows in the shape of a spiral being directed to and inner core 10 The elongated hole on direction that on the direction that central shaft 11 is rectangular, such length direction is rectangular with the central shaft 11 of inner core 10.
Each filter hole 31 can be linearity, it is also possible to be curve-like (can also bend).
Filter 30 is made up of many pieces of sheet materials, it is also possible to a certain sheet material A in the direction of rotation of mixed gas 3 adjacent Sheet material B and sheet material A, overlapping with the outer wall section of sheet material A at the inwall of sheet material B.
1 sheet material (punch metal plate) can also be bent by the sidewall of filter 30, and its end is interconnected to form cylinder Shape, or multiple sheet materials (punch metal plate) are interconnected to form tubular.In this case, as the direction of rotation of mixed gas 3 Inside the end of upstream side is formed, the end in downstream formed outside like that by adjacent in the two ends of 1 sheet material or multiple sheet material The engagement end portion overlap of 2 sheet materials be preferable situation.
Return to Fig. 1, Fig. 2, inner core 10, possess and filter 30, and form the upper opening diameter with filter 30 substantially The columnar doffing portion that identical columnar top cylinder portion 12 is roughly the same with the lower opening diameter of filter 30 with formation 13 form triplen, in order to make upper doffing portion 12,13 link together, are configured with filter 30 between which.Upper doffing Portion 12,13, its sidewall can also be as the setting the frustum of a cone of configuration in the taper seat comprising the sidewall of filter 30.Urceolus 20, possess columnar top cylinder portion 20 and the doffing portion 22 of roughly the same diameter, form dual structure.These arranged coaxial interior Cylinder 10 and urceolus 20, stand vertically on platen 40, and the top (top cylinder portion 12) of inner core 10 is from the upper opening (top cylinder of urceolus 20 The upper opening in portion 21) project upwards, the upper opening (upper opening in top cylinder portion 12) of this inner core 10 is closed by upper cover 50, outward Cylinder 20 upper opening by through this top of inner core 10 and upside from the sidewall at this to urceolus 20 stretch arrange Flange 12a closes.
On sidewall above the inner core 10 that urceolus 20 upper opening highlights upward, arrange at this, make mixed gas 3 tangentially flow into inflow entrance in inner core 10, i.e. flow into pipe 60.This inflow pipe 60 is straight tube, flows into the entrance of pipe 60 61 have circular composition, and outlet 62 is made up of rectangle, and this outlet 62 is along the upper side wall opening (with reference to Fig. 7 A) of inner core 10.
In the sidewall of urceolus 20, on the direction of principal axis of the central shaft 11 of inner core 10 with the filter 30 than inner core 10 further below Below the equitant urceolus of sidewall 20 in (doffing portion 13) on the sidewall in (doffing portion 22), arrange and make to be mixed with micropowder 4 at this Air 1 (by each filter hole 31 flow in inner core 10 inner core 10 sidewall (sidewall of filter 30 and doffing portion 13 Sidewall) and the sidewall (sidewall in top cylinder portion 21 and the sidewall in doffing portion 22) of urceolus 20 between the mixing of annulus 20A micro- The air 1 of powder 4) tangentially flow out outside urceolus 20 flow export, i.e. effuser 70.This effuser 70 is straight tube, flows out Entrance 71 and the outlet 72 of pipe 70 are all formed as circle.Effuser 70, for sidewall (sidewall of filter 30 and the doffing of inner core 10 The sidewall in portion 13) and the sidewall (sidewall in top cylinder portion 21 and the sidewall in doffing portion 22) of urceolus 20 between annulus 20A, as With the ring-type sky constituted below the sidewall and urceolus 20 entering (doffing portion 13) below inner core 10 between the sidewall in (doffing portion 22) Between 20A entrance 71 like that, have and enter below inner core 10 below the sidewall in (doffing portion 13) and urceolus 20 (doffing portion 22) Tube side wall 73 (with reference to Fig. 7 C) below annulus 20A between sidewall.
In the present embodiment, between the sidewall (outer wall of annulus 20A) of effuser 70 and urceolus 20, effuser 70 with It is respectively present gap between platen 40 (bottom surface of urceolus 20: the bottom surface of annulus 20A), but very close to each other the most more preferable. Although the opening shape of the entrance 71 of effuser 70 is expressed as circle, but circular, rectangle can.The entrance 71 of effuser 70 is Between rectangle, and the sidewall of urceolus 20, and between platen 40, the most very close to each other is preferable situation.
At the central part of platen 40, arrange roughly the same directly with inner core 10 lower opening (lower opening in doffing portion 13) The circular through hole 41 in footpath, inner core 10 prolongs the edge of the through hole 41 of platen 40 and erects, and the lower opening of inner core 10 is to platen 40 Outlet 13a of the open granule 2 formed after removing micropowder 4 of lower face side.Urceolus 20 is from the upper surface lateral part of platen 40 Erectting, the lower opening (lower opening in doffing portion 22) of urceolus 20 is closed by platen 40.
Inner core 10, is formed at outlet 13a of lower ending opening, and sidewall up connects the cylindrical space flowing into pipe 60 10A, urceolus 20 connects the ring-type of effuser 70 at the sidewall being formed around lower section flowing into the cylindrical space 10A below pipe 60 Space 20A.Sidewall at these cylindrical spaces 10A Yu the sidewall of borderline inner core 10 of annulus 20A, i.e. filter 30 With in the sidewall in doffing portion 13, the sidewall of filter 30 by means of the most several filter holes 31 arranged in this place by cylindrical space 10A connects with annulus 20A, the sidewall in doffing portion 13, can block the ventilation between cylindrical space 10A and annulus 20A.
Assembling to the micropowder removal device of the present embodiment below illustrates.
As shown in Figure 1 and Figure 2, the doffing portion 13 of inner core 10 is wholy set in platen 40 with the doffing portion 22 of urceolus 20.At dress When joining the micropowder removal device of the present embodiment, on the flange 13b of the sidewall upper being arranged at the doffing portion 13 of inner core 10, overlap sets It is placed in the flange 30a of the side wall lower ends of filter 30, the doffing portion 13 of inner core 10 installs filter 30.
Again on the flange 22a of the sidewall upper in the doffing portion 22 being arranged at urceolus 20, pacified by ring-type lower liner 80 The top cylinder portion 21 of dress urceolus 20, in the top cylinder portion 21 of this urceolus 20, by the overlapping ring-type flange 82 of ring-type upper liner 81, Between flange 82,22a by lower liner 81,80 clip the top cylinder portion 21 of urceolus 20.
Side wall lower ends from the top cylinder portion 12 of inner core 10 is closely close to the most projecting above-mentioned flange 12a and is superimposed on method On blue 82, the side wall lower ends in the top cylinder portion 12 of inner core 10 is embedded in the upper opening of filter 30.At this moment filter 30 is pressed from both sides Between the flange 12a and the lower cylindrical portion 13 of inner core 10 in the top cylinder portion 12 of inner core 10.And the top cylinder portion 21 of urceolus 20 is sandwiched in Between flange 12a and the doffing portion 22 of urceolus 20 in the top cylinder portion 12 of inner core 10, (top cylinder portion 21 upper of the upper opening of urceolus 20 Side's opening) close with the flange 12a in the top cylinder portion 12 of inner core 10.
Two-end part is made to possess the through flange of multiple bolts 83 82 of screw, by between flange 12a, 22a, from flange The upper end tightening nuts 84 of each bolt 83 that the upper surface of 12a projects upwards, from the downward projection of each bolt of flange 22a lower surface The lower end tightening nuts 84 of 83, fastens the top cylinder portion of inner core 10 in the doffing portion 22 with urceolus 20 of the doffing portion 13 of inner core 10 12.At this moment the top cylinder portion 21 of urceolus 20, filter 30 etc. is caused to deform and ftracture, at each bolt in order to prevent from excessively fastening The liner 85 of the 83 outer tubulars sandwiched between flange 12a, 22a.
The outside left of upper cover 50 is installed, on the flange 12b that the sidewall upper in the top cylinder portion 12 of inner core 10 is arranged on this Overlap ring-type pressing plate 86 on the outside left of lid 50, utilize clamping ring 87 grade that upper cover 50 is fixed on flange 12b, inner core 10 upper Side's opening (upper opening in top cylinder portion 12) upper cover 50, installation.
By means of this, unload the top cylinder portion 12 of inner core 10, to carry out the replacing of filter.Also, to micropowder removal device When being carried out, the doffing portion 13 of inner core 10 and the doffing portion 22 of urceolus 20 and platen 40 can be broken down into Unitary member, filter 30, the top cylinder portion 12 of inner core 10, the top cylinder portion 21 of urceolus 20.
Below the material of the micropowder removal device of the present embodiment is illustrated.
The material of inner core 10 including filter 30, urceolus 20, platen 40, upper cover 50 etc. can use general structure Steel plate and the metal material such as corrosion resistant plate.Therefore top cylinder portion 21 and the upper cover 50 of urceolus 20 preferably uses acrylic acid tree The transparent materials such as fat, Merlon, glass.
In such manner, it is possible to from the outside of micropowder removal device through the top cylinder portion 21 of urceolus 20, be visually confirmed to be at ring-type sky Between the air-flow 8 of the air 1 of admixed finepowder 4 that flows in the shape of a spiral of 20A.Upper cover can be passed through again from the top of micropowder removal device 50, it is visually confirmed to be the air-flow 6 of the mixed gas 3 flowed in the shape of a spiral at cylindrical space 10A.Particularly can be visually confirmed to be along The air-flow 6 of the mixed gas 3 that the inwall of filter 30 flows in the shape of a spiral.So, outside through urceolus from micropowder removal device The top cylinder portion 21 of 20 and upper cover 50, it is possible to see the whole inside of micropowder removal device, it is possible to confirm micropowder removal device Disposition.
Use to the micropowder removal device of the present embodiment below illustrates.
As it is shown in figure 5, the plastic resin granule (being fragment sometimes) 2 as plastic resin forms raw material is being supplied to into Before type machine 90, in order to remove the plastic resin micropowder 4 comprised in this granule 2, the micropowder removal device of the present embodiment is passed through Platen 40 is vertically arranged (being the most also obliquely installed) and uses in the top of the raw material feeding hopper 91 of forming machine 90.At this moment, logical Cross flexible pipe or pipe arrangement to be connected to the storagetank 92 of granule 2 flow on pipe 60, motion will be provided to air 1 by flexible pipe or pipe arrangement Energy, or its improve the fluid machinery of pressure, i.e. suction inlet of aerator 93 be connected on effuser 70.Effuser 70 and air blast Dust collect plant 94 is set between machine 93.
Effect to the micropowder removal device of the present embodiment below illustrates.
First, the micropowder removal device of the reference example shown in Figure 12, Figure 13, except the mistake arranged on filter 300 sidewall Outside the shape in filter hole 310, form identical structure with the micropowder removal device of the present embodiment.Figure 12, Tu13Zhong, with this enforcement The structure that the micropowder removal device of example is identical is marked with identical symbol.As shown in Figure 12 and Figure 13, the micropowder removal device of reference example Filter 300 sidewall on arrange filter hole 310 be circle, not there is the filtration of the micropowder removal device of the present embodiment Guide function as device hole 31.
The micropowder of the micropowder removal device of the present embodiment shown in Fig. 6, Fig. 7 and the reference example shown in Figure 12, Figure 13 is removed Device, begins to the pipe arrangement conveying of aspiration-type when both the aerator 93 connected on effuser 70 being set in driving.Utilize The pipe arrangement conveying of this aspiration-type, the mixed gas 3 (comprising micropowder 4) of air 1 and granule 2 is by flowing into pipe 60, from its sidewall Flow in the top cylinder portion 12 of inner core 10 (top of cylindrical space 10A) along tangential direction, along the top cylinder portion 12 of inner core 10 Inwall rotates while declining, and in the present embodiment, enters filter 30 and (is positioned at cylindrical space 10A centre between the upper and lower Portion), in reference example, enter filter 300 (pars intermedia up and down of cylindrical space 10A), along each filter 30,300 inwall Rotate while declining.At this moment the filter hole 310 arranged on the sidewall of the filter 300 of reference example is circular, does not has Guide function as the filter hole 31 that the filter 30 of the present embodiment is arranged, therefore refer in example along inner core 10 inwall The free stream 5 that air-flow is (control) that be not directed to of the mixed gas 3 of flowing.It is to say, the filtration in the present embodiment The object i.e. mixed gas 3 that device hole 31 guides is free stream 5, the mixing that the inwall along inner core 10 in the present embodiment flows The air-flow of gas 3 is (control) the control air-flow 6 utilizing filter hole 31 to guide.The guiding of filter hole 31 will be made below It is illustrated by with (being transformed to control air-flow 6 from the free stream 5 of mixed gas 3).
During mixed gas 3 flows in the shape of a spiral along the inwall of filter 30,300, owing to its air-flow 6,5 produces The effect of big centrifugal force, it is possible to the granule 2 in mixed gas 3 is reliably separated in filter 30,300 with micropowder 4 Outside in sidewall.The granule 2 bigger than filter hole 31,310 can not pass through filter hole 31,310, stop at filter 30, The inside sidewalls of 300, the micropowder less than filter hole 31,310 4 by filter hole 31,310, be split into filter 30, The side-wall outer side of 300.At this moment, owing to there being the inside sidewalls from filter 30,300 to lead to the sky in outside at filter hole 31,310 The air-flow 7 of gas 1, easily separates granule 2 with micropowder 4.
It is separated to the micropowder 4 of the outside of sidewall of filter 30,300, i.e. annulus 20A, in this place by means of in spiral shell The air-flow 8 of the air 1 of rotation shape flowing, rotates and declines, and arrives below annulus 20A, by effuser 70, from outward The sidewall in the doffing portion 22 of cylinder 20 tangentially flows out.It is to say, flow out outside urceolus 20.The sky flowed out outside urceolus 20 The micropowder 4 comprised in gas 1 is reclaimed by dust collect plant 94, is discharged into air by clean air 1 from the discharge opening of aerator 93.
During rotating while declining along filter 30,300 inwall, the granule 2 being removed micropowder 4 enters inner core 10 Doffing portion 13 (lower section of cylindrical space 10A), the inwall along the doffing portion 13 of inner core 10 rotates and declines, arrive The lower opening in doffing portion 13 of inner core 10, i.e. outlet 13a, discharge to the raw material feeding hopper 91 of forming machine 90 at this. Certainly, rotate during declining along the inwall of filter 30,300, by the dust of filter hole 31,310 with mould Material resin chips etc. is also removed together as foreign body with micropowder 4.
So, granule 2 can be entered by the micropowder removal device of the present embodiment and the micropowder removal device of reference example continuously Row processes, and removes micropowder 4 foreign body such as grade from this granule 2.
Effect to the filter hole 31 of the present embodiment below illustrates.
As shown in Figure 8, Figure 9, the filter hole 31 being arranged on filter 30 sidewall be length direction with inner core 10 Elongated hole on the rectangular direction of central shaft 11.On the other hand, at the gaseous mixture flowed in the shape of a spiral along the inwall of filter 30 Body 3, has centrifugal action.Therefore, filter hole 31 by the granule 2 that makes in mixed gas 3 along the length of filter hole 31 Upper following 31a, the 31b in direction move, the free stream 5 of the mixed gas 3 that the inwall along filter 30 flows in the shape of a spiral, To the length direction of filter hole 31, i.e. guide with the rectangular direction of central shaft 11 of inner core 10, as shown in Fig. 6, Figure 12, incited somebody to action The free stream 5 of the mixed gas 3 in filter 30 is transformed to the spiral helicine control air-flow 6 less than its lead angle.By means of this, The mixed gas 3 holdup time in filter plane can be made longer than free stream 6, it is possible to increase the removal efficiency of micropowder 4.
Here, the filter hole 31 that the sidewall of filter 30 is arranged, as long as length direction ratio is along filter 30 The flow direction of the free stream 5 of mixed gas 3 that flows in the shape of a spiral of inwall slightly more near the central shaft with inner core 10 The elongated hole in 11 rectangular directions, it becomes possible to the free stream 5 of the mixed gas 3 in filter 30 is transformed to less than its lead angle Control air-flow 6, it becomes possible to make the mixed gas 3 holdup time in filter plane longer than the holdup time of free stream 5, but It is disposed on the filter hole 31 on filter 30 sidewall, is that its length direction is in the rectangular direction of central shaft 11 with inner core 10 On elongated hole, therefore, it is possible to the free stream 5 of the mixed gas 3 in filter 30 is transformed to the control air-flow that lead angle is less 6, it is possible to make the mixed gas 3 holdup time in filter plane more longer than the holdup time of free stream 6.
Also, as shown in Figure 8, the sidewall of filter 30, when the central shaft 11 of inner core 10 is on plumb line direction, formed More toward the circular platform type of shape the narrowest below vertical, in the filter hole 31 arranged on the sidewall of this filter 30, The following 31b of length direction is than top 31a closer to the central shaft 11 of inner core 10, and closer to the size of d, granule 2 touched The probability of the following 31b in filter hole 31 increases, and filter hole 31 can play guide function effectively.
Below the variation of the guider of the micropowder removal device of the present embodiment is illustrated.As shown in Figure 10, replace Filter hole 31, the inwall at filter be staggered arrange length direction with on the rectangular direction of central shaft 11 of inner core 10 Many thrusts 32, as filter hole 31, be the guider arranged on filter 30, it is possible to as will be along filtration The free stream 5 of the mixed gas 3 that the inwall of device 30 flows in the shape of a spiral, as to from than this free-stream direction closer to The rectangular direction of the central shaft 11 of inner core 10 is to 1 direction with the angular range, theta in the rectangular direction of central shaft 11 of inner core 10 The guider guided uses.Thrust 32 can use the rod member that metal, plastic resin wire rod are constituted, the plate being made up of sheet material Shape component (blade).The filter of thrust 32 is set, can use and arrange at sidewall as the micropowder removal device of reference example The existing filters such as the filter that the use of the filter 300 of filter hole 310 of circle, sidewall is made up of wire netting.At this moment, For making the aperture opening ratio of filter side to be remarkably decreased, thrust 32 is spaced in filter with more much broader than filter hole 31 Inwall arrangement.
Also, below other variation of the guider of the micropowder removal device of the present embodiment are illustrated.Such as Figure 11 institute Show, (be level when the central shaft 11 of inner core 10 is on plumb line in the rectangular direction of central shaft 11 of length direction Yu inner core 10 Direction) on the 1st elongated hole (the 1st filter hole) 501 formed scope 500A and at cylinder 10 more inner than this scope 500A On the direction of principal axis bottom (being vertical bottom when the central shaft 11 of inner core 10 is on plumb line) of central shaft 11, arrange with from than The free stream 5 of mixed gas 3 closer to the direction rectangular with the central shaft 11 of inner core 10 to the central shaft 11 with inner core 10 At right angles direction less than the region 500B that formed of the 2nd elongated hole (the 2nd filter hole) 502 that guides of 1 direction be formed at sidewall Filter the 500, the 1st elongated hole the 501 and the 2nd elongated hole 502 be arranged at filter 500 as guider.Do not use and filter is set The filter 30 in hole (guider) 31, the filter 300 of thrust (guider) 32 is set, is used instead this filter 500。
Here, it is preferably formed at the 2nd elongated hole 502 of scope 500B of filter 500, from the central shaft 11 of inner core 10 Direction of principal axis top to bottom, the length direction of the 2nd elongated hole 502, progressively add from the right angle orientation of the central shaft 11 of inner core 10 Big angle of inclination.In this case, the angle of inclination of each 2nd elongated hole 502, can be from the direction of principal axis of the central shaft 11 of inner core 10 Top is strengthened continuously to bottom, it is also possible to territorial unit (first in figure～own region) strengthens one by one.Also, in filter 500, 1st elongated hole 501 is not essential.
Further, as the guider being arranged on filter, except use through filter wall filter hole 31, 501 and 502, from the thrust 32 that the inwall of filter highlights, it would however also be possible to employ on the inwall of filter, length direction is The right angle orientation of the central shaft 11 of inner core 10 or from the free stream 5 than mixed gas 3 closer to the central shaft 11 with inner core 10 Rectangular direction to the rectangular direction of central shaft 11 of inner core 10 less than 1 direction on groove.
Here, the free stream in the micropowder removal device of guider is set, in guider through filter wall hole In the case of, it is straight that filter hole forms the minimum diameter (top 31a and the interval of following 31b, with reference to Fig. 8) with guide hole Outside the circular hole in footpath, including the aperture opening ratio of filter wall, for be made up of identical structure, condition the work of micropowder removal device time The air-flow of mixed gas；In the case of structure beyond guider through filter wall hole, in addition to being not provided with guider, The air-flow of the mixed gas when micropowder removal device for being made up of identical structure, condition works.
It addition, the sidewall of filter 30 extends to overlapping with effuser 70 on the direction of principal axis of the central shaft 11 of inner core 10 During position, in the sidewall of filter 30, through the part overlapping with effuser 70 on the direction of principal axis of the central shaft 11 of inner core 10 On the air 1 of filter hole 31, make the air-flow 8 of the air 1 flowed in the shape of a spiral at annulus 20A die down, along filtration The air-flow 6 of the mixed gas 3 that the inwall of device 30 flows in the shape of a spiral also dies down, and the efficiency removing micropowder 4 declines, and the present embodiment Micropowder removal device in, as shown in Fig. 1, Fig. 6, Fig. 7 C, in the sidewall of inner core 10, on the direction of principal axis of the central shaft 11 of inner core 10 At least overlapping with effuser 70 part, arranges the ventilation blocking unit (sidewall in doffing portion 13) of atresia for blocking ventilation, because of This becomes strong along the air-flow 6 of the mixed gas 3 that the inwall of filter 30 flows in the shape of a spiral, it is possible to increase the removal effect of micropowder 4 Rate.
Also, the entrance 71 of effuser 70 with flow into pipe 60 outlet 62 as along inner core 10 sidewall opening time, ring-type Space 20A is many with the suction volume of the rightabout air 1 of the direction of rotation of the air-flow 8 of the air 1 flowed in the shape of a spiral, because of This dies down at the air-flow 8 of the air 1 that annulus 20A flows in the shape of a spiral, finally along filter 30 inwall in the shape of a spiral The air-flow 6 of the mixed gas 3 of flowing also dies down, and the removal efficiency of micropowder 4 declines, but the micropowder removal device of the present embodiment, As shown in Fig. 1, Fig. 6, Fig. 7 C, effuser 70 possesses the annulus between the sidewall and the sidewall of urceolus 20 that enter inner core 10 The tube side wall 73 of 20A, the air-flow 8 of the air 1 therefore flowed in the shape of a spiral at annulus 20A becomes strong, finally, along filter The air-flow 6 of the mixed gas 3 that the inwall of 30 flows in the shape of a spiral also becomes strong, it is possible to increase remove the efficiency of micropowder 4.
If as it has been described above, use the present embodiment, then effect as described below can be obtained.
Guider 31,32 is set at filter 30,300, utilizes this guider 31,32, by along filter 30,300 The free stream 5 of the mixed gas that inwall flows in the shape of a spiral, from than this free stream 5 direction closer to inner core 10 The rectangular direction of mandrel 11 guides to 1 direction with the rectangular direction of central shaft 11 of inner core 10, so can make filter 30, The free stream of the mixed gas 3 in 300 forms the helical form that lead angle is little.It is thus possible to freely design the shape of device, and And the mixed gas 3 holdup time in filter plane can be extended.
Guider 31,32 is set on filter 30,300, utilizes this guider 31,32, by along filter 30,300 The free stream 5 of the mixed gas 3 that inwall flows in the shape of a spiral, guides to the direction rectangular with the central shaft 11 of inner core 10, The free stream 5 that can make the mixed gas 3 in filter 30,300 forms the helical airflow that lead angle is less.It is thus possible to The mixed gas 3 holdup time in filter plane is made to extend further.
Filter hole 31 be formed as length direction with the elongated hole on the rectangular direction of central shaft 11 of inner core 10, such energy The free stream 5 of enough mixed gas flowed in the shape of a spiral by the inwall along filter 30 is at the length direction of filter hole 30 Guide, filter hole 31 as the mixed gas 3 that the inwall along filter 30 is flowed in the shape of a spiral free stream 5 with The guider that the rectangular direction of central shaft 11 of inner core 10 guides works, it is possible to make mixed gas 3 in filter 30 from The helical airflow that lead angle is little is formed, it is possible to extend the mixed gas 3 holdup time in filter plane by air-flow 5, and The free stream 5 that can make the mixed gas 3 in filter 30 forms the helical form that lead angle is less, therefore, it is possible to prolong further Long mixed gas 3 is in the holdup time of filter plane.It is thus possible to freely design the shape of device, and gaseous mixture can be extended The body 3 holdup time in filter plane.
Filter 30, when the central shaft 11 of inner core 10 is in plumb line, is formed along vertical the narrowest downward shape Shape, as on filter 30 arrange guider, use be formed as length direction from than along filter 30 inwall in The direction of the free stream 5 of the mixed gas 3 of helical flow is arrived closer to the direction rectangular with the central shaft 11 of inner core 10 With the filter hole 31 of the elongated hole on 1 direction in the rectangular direction of central shaft 11 of inner core 10 or form the center with inner core 10 During the filter hole 31 of the elongated hole in the rectangular direction of axle 11, the following 31b of the length direction of filter hole 31 more leans on than top 31a The central shaft 11 of nearly inner core 10, the probability of the following 31b in granule 2 contact filtration device hole 31 increases, it is possible to effectively play filter The guider function in hole 31.
In the sidewall of inner core 10, portion at least overlapping with effuser 70 on the direction of principal axis of the central shaft 11 of inner core 10 Point, the ventilation blocking unit (sidewall in the doffing portion 13 of inner core 10) of atresia is set for blocking ventilation, makes along filter 30 The air-flow of the mixed gas 3 that wall flows in the shape of a spiral becomes strong, it is possible to increase the removal efficiency of micropowder 4.
For forming the entrance 71 of the annulus 20A entered between inner core 10 sidewall and urceolus 20 sidewall, effuser 70 has The standby tube side wall 73 entering annulus 20A, makes the air-flow change of the mixed gas 3 flowed in the shape of a spiral along the inwall of filter 30 By force, it is possible to increase remove the efficiency of micropowder 4.
[embodiment 2]
Referring to Figure 14～Figure 18, the micropowder removal device of embodiment 2 is illustrated.Figure 14 represents the micro-of embodiment 2 The overall structure of powder removal device, Figure 15 represents the outward appearance of the micropowder removal device of embodiment 2, and (A) is front view, and (B) is for bowing View, (C) are side view, and Figure 16 represents the air supply means of the 2nd inflow entrance of the micropowder removal device to embodiment 2, figure 17 is the side view of the air stream in the micropowder removal device representing embodiment 2, and Figure 18 is that dress removed by the micropowder representing embodiment 2 Putting the top view of interior air stream, (A) is to represent the top view at the air stream flowing into oral area, and (B) represents in separated part The top view of air stream, (C) is the top view representing the air stream in outflow portion.
The micropowder removal device of the present embodiment is interpolation central tube 100, filter in the micropowder removal device of embodiment 1 The device of lid the 110 and the 2nd inflow pipe (the 2nd inflow entrance) 120, possesses the entire infrastructure of the micropowder removal device of embodiment 1.
As shown in Figure 14, Figure 17, Figure 18 A, Figure 18 B, upper cover 50 is detachably fixed in its upper end by central tube 100 Inner surface, is co-axially inserted the inner side configuration of inner core 10, has parallel with the top cylinder portion 12 of inner core 10 from the inner surface of upper cover 50 Round platform portion 102 that the sidewall of cylindrical portion 101 and filter 30 is parallel and the closing end 103 of side, round platform portion 102, blind end Portion 103 is configured between upper opening and the lower opening of filter 30, will close the cylindrical space 10A shape above end 103 Become annulus 10B.By flowing into pipe 60, the mixed gas tangentially flowed into from the sidewall in the top cylinder portion 12 of inner core 10 3 rotate while declining along the inwall in the top cylinder portion 12 of inner core 10, enter filter 30, along the inwall one of filter 30 Limit rotates while declining, and rotary inside diameter at that time is limited by the sidewall of central tube 100, and mixed gas 3 is easily along filter 30 Inwall flows in the shape of a spiral.
As shown in Figure 14, Figure 17, Figure 18 B, strainer cover 110, as the side suppressed with filter hole 31 from filter 30 The ventilation suppression means of the amount of the air 1 that the Inside To Outside of wall flows out, are arranged at the sidewall of urceolus 20 and the side of filter 30 Between wall.Strainer cover 110 is tubular, is clipped between flange 12a and flange 82 by the flange 111 being arranged at upper opening, with Inner core 10 is configured between the sidewall of urceolus 20 and the sidewall of filter 30 coaxially, and at least the sidewall of precoat filter 30 is upper Side.Again, it is possible to use the length (area of the sidewall of precoat filter 30) of the sidewall of strainer cover 110, diameter (strainer cover Interval between sidewall and the sidewall of filter 30 of 110), shape (having the number of atresia, aperture opening ratio), make by filter hole 31 The amount optimization of the air 1 outside the inner side of the sidewall of filter 30 flows to, it is ensured that the air 1 needed in filter 30 Amount, during mixed gas 3 flows in the shape of a spiral along the inwall of filter 30, it is to avoid this air-flow 6 speed reduces.Namely Say, it is to avoid the centrifugal force that the air-flow 6 along the mixed gas 3 of filter 30 spiral inner wall shape flowing produces reduces, and prevents micropowder 4 Removal efficiency decline.
It addition, effuser 70 in the present embodiment, with from the central shaft 11 of inner core 10 to the center flowing into pipe 60 half When footpath makes it rotate centered by the central shaft 11 of inner core 10, in the axial direction of the central shaft 11 of inner core 10, manage with flowing into 60 is the most overlapping, along filter 30 spiral inner wall shape flow mixed gas 3 air-flow 6 and inner core 10 sidewall (filter The sidewall of device 30 and the sidewall in doffing portion 13) and the sidewall (sidewall in top cylinder portion 21 and the sidewall in doffing portion 22) of urceolus 20 between The air-flow 8 of the air 1 of the admixed finepowder 4 of helical flow, rotates in a same direction, but by by effuser 70 and stream Entering pipe 60 to overlap, the direction of rotation that can make two strands of air-flows 6,8 is contrary.Here, with along filter 30 spiral inner wall Air-flow 6 direction of rotation of the mixed gas 3 of shape flowing is contrary, in sidewall (sidewall of filter 30 and the doffing portion 13 of inner core 10 Sidewall) and the sidewall (sidewall in top cylinder portion 21 and the sidewall in doffing portion 22) of urceolus 20 between the mixing flowed in the shape of a spiral micro- The air-flow 8 of the air 1 of powder 4, forms the air 1 that suppression is flowed out from the Inside To Outside of the sidewall of filter 30 by filter hole 31 The air gate of amount, therefore can the ventilation suppression means of alternatively strainer cover 110 use.
As shown in Figure 14, Figure 15, the 2nd flows into pipe 120 makes to rotate the gas inflow of air-flow from the sidewall of inner core 10, By means of this gas, formed identical with air-flow 6 direction of rotation of the mixed gas 3 flowed along filter 30 spiral inner wall shape Swirling eddy 9 (with reference to Figure 17, Figure 18 C), makes from a part of 1a flowing into pipe 60 leaked-in air 1 (the conveying gas of bulk material) Tangentially flow into from the sidewall in the doffing portion 13 of inner core 10.2nd inflow pipe 120 is straight tube, the doffing of through urceolus 20 The sidewall in portion 22, the 2nd entrance 121 flowing into pipe 120 is formed as circular, and the lower outer of urceolus 20 forms opening.2nd flows into pipe The outlet 122 of 120 is formed as rectangle, and this outlet 122 is along the sidewall opening in the doffing portion 13 of inner core 10.Further, inner core 10 As long as the axial 2nd of central shaft 11 the position flowing into pipe 120 is flowing into below pipe 60.
As shown in figure 16, Y-shaped bifurcated pipe is set in conveying pipe arrangement 123 midway connecting storagetank 92 and flow into pipe 60 124, utilize this Y-shaped bifurcated pipe 124, the bifurcated pipe arrangement 126 gone out from conveying pipe arrangement 123 bifurcated is connected to the 2nd inflow pipe 120, a part of 1a forming the air 1 making the pipe arrangement of granule 2 carry flows into, from the 2nd, the structure that pipe 120 flows into.Bifurcated pipe arrangement Air filter (only making air 1a pass through) 127 and the whole valve of flow 128 are set on 126.
The whole valve of flow 128 is to make to flow into the flow-rate ratio of pipe 120 leaked-in air 1a from flowing into the sky that pipe 60 flows into from the 2nd The adjustment valve that the flow of gas 1 is few, utilizes the Y word angle 125 of Y-shaped pipe 124, it is possible to changes and flows from the connectivity port of storagetank 92 Toward the flow of the connectivity port with the 2nd connectivity port flowing into pipe 120 flowing into pipe 60, therefore Y-shaped pipe 124 can be used as making The flow-rate ratio of pipe 120 leaked-in air 1a is flowed into from the few whole means of flow of flow flowing into pipe 60 leaked-in air 1 from the 2nd Use.
As shown in Figure 17, Figure 18 C, air 1a is by the 2nd inflow pipe 120, in the sidewall at this tangentially flows into In the doffing portion 13 of cylinder 10, form the inwall rotation with the doffing portion 13 along inner core 10 while along in filter 30 The swirling eddy 9 that air-flow 6 direction of rotation of the mixed gas 3 that wall flows in the shape of a spiral is identical.This swirling eddy 9 will be along filtration The air-flow 6 of the mixed gas 3 that the inwall of device 30 flows in the shape of a spiral is involved in, and makes the air-flow 6 of this mixed gas 3 near eddy flow, shape Become the strong helical form that lead angle is less, therefore in filter 30, when can extend the mixed gas 3 delay in filter plane Between, micropowder 4 removal efficiency can be improved.Also, in the sidewall of inner core 10, with the 2nd stream on the direction of principal axis of the central shaft 11 of inner core 10 Entering the part of pipe 120 overlap, in order to utilize the sidewall in the doffing portion 13 of inner core 10 to block ventilation, the ventilation forming atresia blocks Portion, flowing into pipe 120 leaked-in air 1a from the 2nd will not the outer wall (side in the doffing portion 13 of inner core 10 below cylindrical space 10A Wall) leak into below the annulus 20A being positioned at about, it is possible to (the doffing portion 13 of inner core 10 below cylindrical space 10A In) forming strong swirling eddy 9, the air-flow 6 of the mixed gas 3 flowed in the shape of a spiral hence along the inwall of filter 30 is formed leads The helical form that journey angle is less.
In the present embodiment, flow into pipe 120 to the 2nd and a part of 1a of air 1 (gas of conveying bulk material) is provided, but The other piping system force feed beyond the pipe arrangement induction system of granule 2 can also be utilized to send out from swirling eddy generation aerator The air of raw swirling eddy.Gas as swirling eddy generation, it is also possible to provide the air such as nitrogen or carbon dioxide with Outer gas.2nd flows into pipe 120 can also make the gas of generation swirling eddy tangentially flow from the sidewall of filter 30 Enter.
[embodiment 3]
Referring to Figure 19～Figure 24, the micropowder removal device of embodiment 3 is illustrated.Figure 19 represents the micro-of embodiment 3 The population structure of powder removal device, Figure 20 represents the outward appearance of the micropowder removal device of embodiment 3, and (A) is front view, and (B) is for bowing View, (C) is side view, and Figure 21 represents the cross sectional side view of the micropowder removal device of embodiment 3, and Figure 22 is to represent embodiment 3 Micropowder removal device in the side view of air stream, Figure 23 is the air stream in the micropowder removal device representing embodiment 3 Top view, (A) is the top view of the air stream representing separated part, and (B) is the top view representing the air stream flowing out oral area, (C) It it is the top view representing the air stream flowing into oral area.The reference example that Figure 24 represents with embodiment 3 micropowder removal device is made comparisons is micro- The overall structure of powder removal device.
As shown in Figure 19, Figure 20, the micropowder removal device of the present embodiment is by the inner core 140 comprising filter 130, coaxially join It is placed in the urceolus 150 outside inner core 140, the platen 160 arranging micropowder removal device and upper cover 170 etc. to constitute.
As shown in figure 21, filter 130 has the 26S Proteasome Structure and Function identical with the filter 30 of embodiment 1,2, is inner core In the sidewall of 140, part overlapping with the sidewall of urceolus 150 on the direction of principal axis of the central shaft 141 being formed in inner core 140 is at least A part, is plastic resin granule 2 (powder in the mixed gas 3 (with reference to Figure 22, Figure 23) in flowing into inner core 140 simultaneously One of plastochondria example) in micropowder 4 is separated to the parts in outside of sidewall of inner core 140, the central shaft 141 of inner core 140 is vertical During line, form the truncated cone-shaped of shape the narrowest below vertical, on whole of this sidewall (side), in saw Tooth-like formation arranges and only makes the air 1 in mixed gas 3 and the micropowder 4 many filter holes by (not making granule 2 pass through) 131.The sidewall of this filter 130 utilizes perforated metal plate to constitute.
Each filter hole 131 has the 26S Proteasome Structure and Function identical with the filter hole 31 of embodiment 1,2.As will be along mistake The free stream 5A (with reference to Figure 24) of the mixed gas 3 that the inwall (filter plane) of filter 130 flows in the shape of a spiral, guides inner core into The guiding of the right angle orientation (central shaft 141 of inner core 140 is to guide horizontal direction into when plumb line) of the central shaft 141 of 140 Means, are formed as the elongated hole in the right angle orientation of the central shaft 141 that length direction is perpendicular to inner core 140.Also, each filter hole 131, as being arranged at the guider of filter 130, the mixed gas that will flow in the shape of a spiral along the inwall of filter 130 The free stream 5A of 3, to from the direction than this free stream closer to the right angle orientation of the central shaft 141 being perpendicular to inner core 140 Direction to the right angle orientation of the central shaft 11 being perpendicular to inner core 10 angular regions θ 1 direction guide guider, be formed as Can be by the free stream 5A of mixed gas 3 that the inwall along filter 130 flows in the shape of a spiral to being perpendicular in inner core 10 The right angle orientation of mandrel 11 guides, length direction elongated hole in the right angle orientation of the central shaft 11 of inner core 10.
Return to Figure 19, Figure 20, when inner core 140 is that mandrel 141 is for plumb line wherein, along vertical the most increasingly The narrow big truncated conical shape being made up of top, middle part, bottom three part, top is made up of filter 130, and middle part and lower section are divided It is not made up of middle cylinder position 142 and the doffing portion 143 of truncated conical shape.Urceolus 150 possesses on roughly the same columnar of diameter The two-part structure that cylinder portion 151 and doffing portion 152 are constituted, doffing portion 152 possesses base plate 152a.The inner core of these arranged coaxial 140 and urceolus 150 in, inner core 140 stands vertically on platen 160, urceolus 150 be configured at the filter 130 of inner core 140 with in Cylinder portion 142 around, makes the doffing portion 143 of inner core 140 highlight downwards from the central part of base plate 143a, is generally in identical The upper opening (upper opening of filter 130) of the inner core 140 on height and the upper opening of urceolus 150 be (top cylinder portion 151 Upper opening) close with upper cover 170.
The sidewall of the lower section (doffing portion 143) of the inner core 140 highlighted downwards from the base plate 152a of urceolus 150, arrange Mixed gas 3 is made tangentially to flow into the inflow entrance in inner core 140, i.e. inflow pipe 180 at this.This inflow pipe 180 is Straight tube, the entrance 181 flowing into pipe 180 is formed as circular, and outlet 182 is formed as circular (can be rectangle sometimes), this outlet 182 edge The sidewall opening (with reference to Figure 23 C) below inner core 140.
In the sidewall of urceolus 150, in the axial direction of the central shaft 141 of inner core 140 with the ratio filter 130 of inner core 140 more On the sidewall of the lower section (doffing portion 152) of the urceolus 150 that the sidewall at the middle part (middle cylinder portion 142) of the inner core 140 of lower section is overlapping, if Put and make the air 1 of admixed finepowder 4 (by each filter hole 131, flow into the sidewall (filter 130 of inner core 140 in inner core 140 Sidewall and the sidewall in middle cylinder portion 142) and the sidewall (sidewall in top cylinder portion 151 and the sidewall in doffing portion 152) of urceolus 150 between The air 1 of admixed finepowder 4 of annulus 150A) at this, tangentially flow to the flow export of urceolus 150 external, i.e. flow Go out pipe 190.This effuser 190 is straight tube, and entrance 191 and the outlet 192 of effuser 190 are all formed as circle.Effuser 190 has Ring between the sidewall of the sidewall (middle cylinder portion 142) at the standby middle part entering inner core 140 and the bottom (doffing portion 152) of urceolus 150 The tube side wall 193 (with reference to Figure 23 B) of 150A bottom, shape space, formed enter inner core 140 sidewall (sidewall of filter 130 with The sidewall in middle cylinder portion 142) and the sidewall (sidewall in top cylinder portion 151 and the sidewall in lower same portion 152) of urceolus 150 between ring-type sky Between the sidewall at middle part (middle cylinder portion 142) of 150A, i.e. inner core 140 and urceolus 150 bottom (doffing portion 152) sidewall between The entrance 191 of the bottom of annulus 150A.
In the present embodiment, between the sidewall (outer wall of annulus 150A) of effuser 190 and urceolus 150, effuser Between 190 and base plate 152a (bottom surfaces of urceolus 150: the bottom surface of annulus 150A), all there is gap, but very close to each other, more manage Think.In the present embodiment, the opening shape of the entrance 191 of effuser 190 is expressed as circle, but can be that circle can also be for square Shape.The entrance 191 of effuser 190 be between rectangle, and the sidewall of urceolus 150 and and base plate 152a between the most very close to each other It is optimal.
At the central part of platen 160, the lower opening (lower opening in doffing portion 143) with inner core 140 is set substantially The circular through hole 161 of same diameter, inner core 140 holds up from the edge of the through hole 161 of platen 160, and the lower section of inner core 140 is opened Mouth opens to the lower face side of platen 160, forms outlet 143a of the granule 2 eliminating micropowder 4.
Inner core 140 opens outlet 143a to lower end, forms the funnel-form space flowing into pipe 180 being connected to lower sidewalls 140A, urceolus 150 forms the effuser being connected to lower sidewalls around the funnel-form space 140A flowing into pipe 180 more top The annulus 150A of 190.The sidewall of the borderline inner core 140 of these funnel-form spaces 140A and annulus 150A, i.e. The sidewall of filter 130 is with the sidewall in middle cylinder portion 142, and the sidewall of filter 130 is by means of the multiple filters arranged at this Funnel-form space 140A and annulus 150A is connected logical by hole 131, the sidewall in middle cylinder portion 142 cut off funnel-form space 140A with Ventilation between annulus 150A.
Assembling to the micropowder removal device of the present embodiment below illustrates.
As shown in Figure 19, Figure 20, the doffing portion 152 of middle cylinder portion 142, doffing portion 143 and the urceolus 150 of inner core 140 is overall It is arranged at platen 160.When assembling the micropowder removal device of the present embodiment, in the sidewall upper at the middle cylinder position 142 of inner core 140 On the flange 142a arranged, overlap the flange 130a that the side wall lower ends of filter 130 is arranged, the middle cylinder position 142 of inner core 140 Upper mounting filter 130.
Also, on the flange 152b of the sidewall upper setting in the doffing portion 152 of urceolus 150, pacified by ring-type lower liner 200 The top cylinder portion 151 of dress urceolus 150, the upper liner 201 of cover ring shape in the top cylinder portion 151 of this urceolus 150, inner core 140 with Upper cover 170 is installed on urceolus 150.At this moment filter 130 is sandwiched between upper cover 170 and the middle cylinder position 142 of inner core 140.Also, The top cylinder portion 151 of urceolus 150 is clipped between the doffing portion 152 of upper cover 170 and urceolus 150 by upper lower liner 201,200.Inner core The upper opening (upper opening in top cylinder portion 151) of the upper opening (upper opening of filter 130) of 140 and urceolus 150 is used Upper cover 170 is overall closes.
Two-end part is made to possess multiple bolts 202 of screw through upper cover 170 and flange 152b, from upper cover 170 The upper end tightening nuts 203 of each bolt 202 that upper surface is prominent upward, prominent each downwards from the lower surface of flange 152b The lower end tightening nuts 203 of bolt 202, utilizes upper cover 170 that filter 130 is anchored on the middle cylinder position 142 of inner core 140, will Top cylinder portion 151 is anchored on the doffing portion 152 of urceolus 150, installation.At this moment, in order to prevent from excessively fastening cause upper cover 170, The filter 130 of inner core 140, the top cylinder portion 151 etc. of urceolus 150 deform or cracking, at each bolt 202, upper cover 170 and flange Outer tubular liner 204 is sandwiched between 152b.
So, take off upper cover 170 and just can replace filter.Also, clean when micropowder removal device, can be analyzed to Doffing portion 152 and the global facility of platen 160, the filter of the middle cylinder portion 142 of inner core 140 and doffing portion 143 and urceolus 150 130, the top cylinder portion 151 of urceolus 150 and upper cover 170.
Below the material of the micropowder removal device of the present embodiment is illustrated.
Comprise the material of the inner core 140 of filter 130, urceolus 150, platen 160, upper cover 170 etc., general structure can be used Steel plate or the metal material such as corrosion resistant plate.In this case, the top cylinder portion 151 of urceolus 150 preferably uses acrylic acid The transparent materials such as resin, Merlon, glass.Upper cover 170 uses transparent material the most more preferable.
This makes it possible to pass through top cylinder portion 151 visualization of urceolus 150 from the outside of micropowder removal device at ring-type sky Between the air-flow 8A of the air 1 with admixed finepowder 4 that flows in the shape of a spiral of 150A.Can pass through from the top of micropowder removal device again Upper cover 170, is visually confirmed to be the air-flow 6A of the mixed gas 3 flowed in the shape of a spiral at funnel-form space 140A, particularly can be true Recognize the air-flow 6A of mixed gas 3 in filter 130.In such manner, it is possible to from the outside of micropowder removal device through urceolus 150 Top cylinder portion 151 and upper cover 170, it is seen that the whole inside of micropowder removal device, confirm the disposition of micropowder removal device.
Use to the micropowder removal device of the present embodiment below illustrates.
The micropowder removal device of the present embodiment, replaces embodiment 1 and the micropowder removal device of embodiment 2, arranges forming machine 90, by flexible pipe or pipe arrangement, inflow pipe 180 is connected to the storagetank 92 of granule 2, by flexible pipe or pipe arrangement, effuser 190 is connected Be connected to air 1 is provided kinergety or improve its pressure as on the suction inlet of the aerator 93 of fluid machinery, at batch Reason, processes the granule 2 of each unit, removes micropowder 4 foreign body such as grade from this granule 2.The micropowder of the present embodiment is removed dress Install when being placed in forming machine 90, take off raw material feeding hopper 91, arrange (sometimes to tilt by platen 160 vertical at its connector Arrange) use.Dust collect plant 94 is set between effuser 190 and aerator 93.
Effect to the micropowder removal device of the present embodiment below illustrates.
First, the micropowder removal device of the reference example shown in Figure 24, except the filter hole arranged on filter 400 sidewall Outside the shape of 410, possess the structure identical with the micropowder removal device of the present embodiment.In Figure 24, the micropowder with the present embodiment is removed The structure that device is identical is marked with identical symbol.As shown in figure 24, on filter 400 sidewall of the micropowder removal device of reference example The filter hole 410 arranged is circular, leads as the filter hole 131 of the micropowder removal device the most not possessing the present embodiment To function.
The micropowder removal device of the present embodiment shown in Figure 22, Figure 23 fills with the micropowder removal of the reference example shown in Figure 24 Put, both start once the aerator 93 being connected to effuser 190, begin to carry out aspiration-type pipe arrangement conveying.Utilize This aspiration-type pipe arrangement carries, and air 1 and the mixed gas 3 (also micropowder 4) of granule 2, by flowing into pipe 180, at this Sidewall flows into the doffing portion 143 interior (bottom of funnel-form space 140A) of inner core 140 along tangential direction, along inner core Doffing portion 143 inwall of 140 rotates while rising, cylinder portion 142 in entrance, rotates on one side along middle cylinder portion 142 inwall Rise.In the present embodiment, enter filter 130 (top of funnel-form space 140A), in reference example, enter filter 400 (top of funnel-form space 140A), rotating along each filter 130,400 inwall while rising, arriving upper cover 170.This Time, the filter hole 410 owing to arranging on the sidewall of reference example filter 400 is circular, does not has the filter 130 of the present embodiment Guide function as the filter hole 131 arranged, therefore refers to the mixed gas 3 that the inwall along inner core 140 of example flows Air-flow formed and be not directed to the free stream 5A of (control).Lead it is to say, become filter hole 131 in the present embodiment To the free stream 5A that object is mixed gas 3, the gas of the mixed gas 3 along the flowing of inner core 140 inwall in the present embodiment Stream forms the control air-flow 6A being guided (control) by filter hole 131.To the guide effect of filter hole 131 (from mixed gas 3 Free stream 5A be transformed to control air-flow 6A) will describe below.
The mixed gas 3 of 1 unit, before stopping blower 93, the inwall along filter 130,400 revolves Turn while being detained in filter 130,400.At that time, the gaseous mixture flowed in the shape of a spiral along the inwall of filter 130,400 The effect of the centrifugal force that air-flow 6A, 5A of body 3 produces, makes the granule 2 in mixed gas 3 be reliably separated in mistake with micropowder 4 The interior outside of the sidewall of filter 130,400.The granule 2 bigger than filter hole 131,410 cannot pass through filter hole 131, 410, rest on the inner side of filter 130,400 sidewall, the micropowder 4 less than filter hole 131,410 by filter hole 131, 410 outsides being separated to filter 130,400 sidewall.At this moment, have from filter 130,400 sidewall at filter hole 131,410 The air-flow 7A of the air 1 of Inside To Outside flowing, therefore easily separates granule 2 with micropowder 4.
Be separated to the micropowder 4 of the outside of filter 130,400 sidewall, i.e. annulus 150A, by means of stay in this place in The air-flow 8A of the air 1 of helical flow, rotates and declines, and arrives below annulus 150A, passes through effuser 190, tangentially flow out from the sidewall in the doffing portion 152 of urceolus 150.It is to say, flow out outside urceolus 150.To urceolus The micropowder 4 comprised in the 150 outer air 1 flowed out is reclaimed by dust collect plant 94, from the outlet of aerator 93 by clean air 1 It is discharged in air.
Rotate along filter 130,400 inwall while in the period of filter 130,400 delay, being removed micropowder The granule 2 of 4 falls, from the outlet of the lower opening in the doffing portion 143 as inner core 140 when the driving of aerator 93 stops 143a discharges to forming machine 90.Certainly, rotate, along filter 130,400 inwall, the period being detained, by filtering The dust in device hole 131,410 and plastic resin small pieces etc. are also removed together as foreign body with micropowder 4.So complete the micropowder of 1 time Removal i.e. starts blower 93 after processing, and the micropowder removal then carrying out another processes.
So, the micropowder removal device of the present embodiment is processed, at the granule 2 of each Board Lot by batch Reason, removes micropowder 4 foreign body such as grade from this granule 2.
Effect to the filter hole 131 of the present embodiment below illustrates.
As shown in figure 22, filter hole 131 length direction arranged on filter 130 sidewall is in inner core 140 Elongated hole in the right angle orientation of mandrel 141.On the other hand, the inwall along filter 130 is flowed by centrifugal force in the shape of a spiral Mixed gas 3 works.Therefore, the granule 2 during filter hole 131 makes mixed gas 3 is along the length direction of filter hole 131 Upper following movement, the free stream 5A of the mixed gas 3 flowed in the shape of a spiral by the inwall along filter 130 is to filter The right angle orientation of the central shaft 141 of the length direction in hole 131, i.e. inner core 140 guides, knowable to Figure 22, Figure 24, by filter The free stream 5A of the mixed gas 3 in 130 is transformed to the control air-flow 6A that lead angle is less than it.
When carrying out batch processing, determine that granule 2 is at filter according to the driving time (pull up time) of aerator 93 130, the time that 400 inwalls (filter plane) are detained, therefore the micropowder removal device of the present embodiment and the micropowder of reference example are removed In device, the difference of the holdup time do not caused because of the difference as filter hole 131,410.But, granule 2 is filtering When rotating in device 130,400, it not to move by the track of a certain regulation, but high and low, or change and filter 130,400 Inwall away from movement, (due to high and low, granule 2 mutually collides, due to its retroaction, with filter 130,400 inwall Away from changing).In this case, the filter hole 131 of the present embodiment is elongated hole, can suppress the upper and lower of granule 2 Mobile.It can be suppressed to move up and down, it is simply that suppression granule 2 mutually collides.Due to not collision (or make impact force little), it is subject to The granule 2 of centrifugal force is stably pressed track at the inwall of filter 130 and is rotated.So, the filter hole 131 as elongated hole can Extend the time that granule 2 contacts with filter plane.Therefore, it is possible to improve the efficiency removing micropowder." extend in filter plane Holdup time " this effect, expressing by another kind of expression way is exactly " extending the time contacted with filter plane ".It addition, this The micropowder removal device of embodiment, is will to put into below device, at the granule 2 that will process as the granule 2 processing object The type removed below device, but can also pass through to be formed as being provided above the outlet of the granule 2 processed at device, To put into below device as the granule 2 processing object, the granule 2 processed is from the model (from continuously removed above device Reason type).In this type of situation, mixed gas 3 is long in the holdup time of filter 130 inwall (filter plane), it is possible to Improve the removal efficiency of micropowder 4.
Here, the filter hole 131 being arranged on the sidewall of filter 130, as long as length direction at ratio along mistake The flow direction of the free stream 5A of the mixed gas 3 that the inwall of filter 130 flows in the shape of a spiral be slightly closer to in inner core 140 Elongated hole in the right angle orientation of mandrel 141, it becomes possible to the free stream 5A of the mixed gas 3 in filter 130 is transformed to ratio The spiral helicine control air-flow 6A that its lead angle is less, it is possible to make the mixed gas 3 holdup time in filter plane than freely The holdup time of air-flow 5A is long, but the filter hole 131 arranged on the sidewall of filter 130 is that length direction is at inner core 140 Central shaft 141 right angle orientation on elongated hole, therefore, it is possible to the free stream 5A of the mixed gas 3 in filter 130 is become It is changed to the spiral helicine control air-flow 6A less than its lead angle, it is possible to make the mixed gas 3 holdup time in filter plane More much longer than free stream 5A.
Also, the sidewall of filter 130, when the central shaft 141 of inner core 140 is on plumb line direction, formed along vertical The circular platform type that line direction is the most downward more narrow, the filter hole 131 that this filter 130 sidewall is arranged, length direction following Than top closer to the central shaft 141 of inner core 140, granule 2 touches the following probability in filter hole 131 to be increased, it is possible to effectively Ground plays the guide function of filter hole 131.
The micropowder removal device of the present embodiment, as being arranged at the guider of filter 130, namely will be along filter The free stream 5A of the mixed gas 3 that the inwall of 130 flows in the shape of a spiral guide into from than this free stream direction closer to Central shaft 141 right angle orientation of inner core 140 to 1 direction of the angle field θ of central shaft 141 right angle orientation of inner core 140 Guider, can replace filter hole 131, uses dashing forward shown in the 1st elongated hole the 501 and the 2nd elongated hole 502 shown in Figure 11, Figure 10 Play thing 32, groove can also be used in addition.
It addition, the sidewall of filter 130 extends to overlapping with effuser 190 at the direction of principal axis of the central shaft 141 of inner core 140 Position time, in the sidewall of filter 130, portion overlapping with effuser 190 on the direction of principal axis of the central shaft 141 of inner core 140 The air 1 that filter hole 131 on Fen passes through so that in the air-flow 8A change of the air 1 that annulus 150A flows in the shape of a spiral Weak, the air-flow 6A of the mixed gas 3 that inwall along filter 130 flows in the shape of a spiral also dies down, the removal efficiency fall of micropowder 4 Low, but in the micropowder removal device of the present embodiment, as shown in Figure 19, Figure 22, Figure 23 B, in the sidewall of inner core 140, including Part at least overlapping with effuser 190 on the direction of principal axis of the central shaft 141 of cylinder 140, in order to block ventilation, arranges the logical of atresia Gas blocking unit (sidewall in middle cylinder portion 142), hence along the gas of the mixed gas 3 that the inwall of filter 130 flows in the shape of a spiral Stream 6A becomes strong, it is possible to increase remove the efficiency of micropowder 4.
Also, the entrance 191 of effuser 190 as the outlet 182 flowing into pipe 180 along the sidewall opening of inner core 140 time, The suction volume of the rightabout air 1 of the direction of rotation of the air-flow 8A of the air 1 flowed in the shape of a spiral at annulus 150A Much, the air-flow 8A of the air 1 therefore flowed in the shape of a spiral at annulus 150A dies down, and is finally spiral shell along filter 30 inwall The air-flow 6 of the mixed gas 3 of rotation shape flowing also dies down, and removes the efficiency step-down of micropowder 4, but in the micropowder removal of the present embodiment In device, as shown in fig. 23b, effuser 190 has the ring-type sky between the sidewall and the sidewall of urceolus 150 that enter inner core 140 Between the tube side wall 183 of 150A, the air-flow 8A of the air 1 therefore flowed in the shape of a spiral in annulus 150A becomes strong, final edge The air-flow 6A of the mixed gas 3 that the inwall of filter 130 flows in the shape of a spiral also becomes strong, it is possible to make in the efficiency of removal micropowder 4 Rise.
As it has been described above, the present embodiment also is able to obtain effect same as in Example 1.
Also, in the micropowder removal device of the present embodiment, it is also possible to it is attached in the micropowder removal device of embodiment 2 additional Central tube 100, strainer cover the 110 and the 2nd flow into pipe (the 2nd inflow entrance) 120.
As it has been described above, in embodiment 1～3, with being suitable for the well-known aspiration-type Pipeline transport as bulk material The present invention (the 1st～the 4th invention) is illustrated by micropowder removal device, but the present invention is not limited to this, without departing from it Can be carried out after carrying out various deformation in the range of main idea.Such as can be suitable for the well-known force feed as bulk material Formula pipeline carries, it is also possible to be suitable for as the pipeline conveying being conveying gas with nitrogen, carbon dioxide.Also, embodiment 1～ 3 carry out pipeline conveying with to a kind of bulk material, and the device removing micropowder describes the present invention, but the present invention can also It is suitable for as multiple bulk material is carried out pipeline conveying, is mixed simultaneously, remove the device of micropowder.
Also, in order to form spiral flow inside and outside filter, flow into pipe and the air of admixed finepowder about mixed gas The closure of effuser, it is not necessary to the rwo is tangentially arranged at a sidewall, any one party.About mixed gas Flow into the pipe effuser with the air of admixed finepowder in the axial position of inner core central shaft, if different, In this case, both on the direction of principal axis of inner core central shaft the most overlapping can also, partly overlapping can also.Further, In the case of embodiment 3, the effuser of the air flowing into pipe and admixed finepowder of mixed gas is in the axle side of the central shaft of inner core To position can also be identical.

Claims (5)

1. a micropowder removal device, possesses inner core and the urceolus configured outside this inner core, in the sidewall of described inner core, in institute The filtration being formed as porous at least partially of the part that overlaps with described outer tube side wall on the direction of principal axis of the central shaft stating inner core Device, arranges the inflow entrance making the conveying gas of bulk material flow into the mixed gas of described bulk material in described inner core, with Time arrange and make the hole by described filter the described conveying gas separated at the side-wall outer side of described inner core and flow into described The flow export that the micropowder contained in described mixed gas in inner core flows out together outside described urceolus, will not be by described filtration The hole of device is discharged from described inner core lower opening at the bulk material of the inside sidewalls delay of described inner core, it is characterised in that
Being provided with guider on described filter, the described guider 1 direction in following angular regions guides along described filtration The free stream of the described mixed gas that the inwall of device flows in the shape of a spiral, described angular regions is: more described free stream Direction is closer to the direction in the direction at a right angle with the central shaft of described inner core and the side at a right angle with the central shaft of described inner core Angular regions between to.
Micropowder removal device the most according to claim 1, it is characterised in that
Described guider guide to the direction at a right angle with the central shaft of described inner core along described filter inwall in the shape of a spiral The free stream of the described mixed gas of flowing.
Micropowder removal device the most according to claim 1 and 2, it is characterised in that described filter, in described inner core When mandrel is plumb line, form the shape the most increasingly narrowed along plumb line direction.
4. a micropowder removal device, possesses inner core and the urceolus configured outside this inner core, in the sidewall of described inner core, in institute The filtration being formed as porous at least partially of the part that overlaps with described outer tube side wall on the direction of principal axis of the central shaft stating inner core Device, arranges the inflow entrance making the conveying gas of bulk material flow into the mixed gas of described bulk material in described inner core, with Time the micropowder comprised in the described mixed gas making in flowing into described inner core is set together with by the hole of described filter and The flow export that the described conveying gas that the side-wall outer side of described inner core separates flows out outside described urceolus, will not be by described filtration The hole of device is discharged from described inner core lower opening at the bulk material of the inside sidewalls delay of described inner core, it is characterised in that
The hole of described filter is formed as length direction elongated hole on direction rectangular with the central shaft of described inner core, will be along institute State the free stream of the described mixed gas that the inwall of filter flows in the shape of a spiral, to rectangular with the central shaft of described inner core Direction guide.
Micropowder removal device the most according to claim 4, it is characterised in that described filter, at the center of described inner core When axle is plumb line, form the shape the most increasingly narrowed along plumb line direction.
CN201110315508.7A 2010-10-12 2011-10-10 Micropowder removal device Active CN102441529B (en)

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TWI566844B (en) 2017-01-21
JP2012081642A (en) 2012-04-26

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