WO2016052166A1 - Cylindrical sieve device and granular material-sorting method using same - Google Patents

Cylindrical sieve device and granular material-sorting method using same Download PDF

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Publication number
WO2016052166A1
WO2016052166A1 PCT/JP2015/076088 JP2015076088W WO2016052166A1 WO 2016052166 A1 WO2016052166 A1 WO 2016052166A1 JP 2015076088 W JP2015076088 W JP 2015076088W WO 2016052166 A1 WO2016052166 A1 WO 2016052166A1
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Prior art keywords
granular material
frame
sieve
plate
cylindrical
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PCT/JP2015/076088
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French (fr)
Japanese (ja)
Inventor
大西祐二
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東レ株式会社
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Priority to JP2015547579A priority Critical patent/JP6582990B2/en
Publication of WO2016052166A1 publication Critical patent/WO2016052166A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/06—Cone or disc shaped screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering

Definitions

  • the present invention relates to a cylindrical sieving device and a method for selecting a granular material using the same, and in particular, to reduce the amount of normal particles discharged together with the selected coarse particles and increase the collection yield of normal particles.
  • the present invention relates to a cylindrical sieving apparatus and a method for selecting a granular material using the same.
  • Resin pellets as powder particles are, for example, long resin that is compounded with a thermoplastic resin with a reinforcing agent or a colorant, and newly added value is extruded and molded from the discharge port of the die. Is cut in a direction perpendicular to the length direction. The cut granular resin is collectively referred to as “resin pellet”, and is used as a raw material for molding in various fields, for example, in the field of automobiles and electrical parts.
  • the shape of the cut surface of such a resin pellet is stable because it is determined by the shape of the discharge port, but the shape (size) in the length direction may result in a poorly shaped pellet depending on the material characteristics and cutting conditions. There is.
  • ⁇ Poor shape pellets induce unstable feed into the molding machine and have a great influence on the molding process. Therefore, it is necessary to keep the pellet shape variation within a certain range. In order to suppress the variation and obtain pellets having a size within a certain range, it is effective to select normal grains and other pellets with respect to the size, in particular, the length of the pellet.
  • a method of sorting out the generated poorly shaped pellets there is a method of sieving the input pellets according to the length using a vibration sieve device.
  • a vibration sieving device for example, a punching metal (perforated plate) having a predetermined opening for sieving the input material, and a vibration means for oscillating the punching metal, the material to be sieved is punched metal.
  • Vibrating sieve devices that are thrown into the top are known (for example, Patent Documents 1 to 7).
  • a cylindrical sieve device as shown in FIG. 1 is known as this type of vibrating sieve device (the cylindrical sieve device shown in FIG. 1 is common to the description of the prior art and the description of the present invention. Use).
  • a punching metal having a predetermined opening in which a raw material granular material 3 introduced from a granular material inlet 2 is vibrated in a sieve frame 4 by a vibration means 5.
  • the coarse particles are sorted into other granular materials (powder particles including target normal size normal particles and powder) and selected. Coarse grains are discharged from the coarse grain outlet 8.
  • the granular material 9 is dropped into the lower middle sorting chamber 10 and on the vibrating punching metal (porous plate) 11 having an opening smaller than the punching metal (porous plate) 6.
  • the normal particles and the powder are sorted, the normal particles are discharged from the normal particle discharge port 12, and the powder 13 is dropped into the lower chamber 14 and discharged from the powder discharge port 15.
  • JP 2000-135474 A JP-A-2005-305386 JP 2012-217899 A JP 2013-252493 A Japanese Patent Laid-Open No. 03-213181 JP-A-10-309527 Japanese Patent Laid-Open No. 11-319716
  • the raw material granular material is formed on the punching metal 6 only by providing the rectifying plate 16 that extends short inward from the inner peripheral surface of the sieving frame 4.
  • the flow distance from the raw material granule input part to the coarse grain outlet 8 is short, so that the coarse grain outlet 8 can sort together with the selected coarse grains. Normal grains that have not been sufficiently performed are discharged. If the discharge amount of normal particles from the coarse particle discharge port 8 increases, the collection yield of normal particles in sorting by the entire sieving device is lowered, and the yield when the normal particles are collected products is deteriorated.
  • the object of the present invention is to pay attention to the problems in the conventional sieving apparatus as described above, and the amount of normal grains discharged together with coarse grains can be greatly reduced. Is to provide a cylindrical sieving apparatus capable of greatly improving the above and a method for selecting a granular material using the same.
  • a cylindrical sieve device comprises a raw material granule placed in a central part of the sieve frame in a sieve frame having a circular planar shape, and coarse particles.
  • a vibrating perforated plate that can be sorted into other granular materials is provided, and an upper sorting chamber in which a coarse particle discharge port for discharging coarse particles sorted on the porous plate is provided in the sieve frame.
  • one end of the sieving frame is connected to a position on one end side in the sieving frame circumferential direction of the coarse grain outlet, and the rectification extends longer than the radius of the circular sieving frame.
  • a plate is disposed so as to be inclined and extend toward the region including the coarse grain outlet with respect to the direction passing through the center of the circular sieve frame, and the other of the current plates in the upper sorting chamber.
  • a circle in the upper sorting chamber partitioned by the current plate on the extension line of the end Providing a granule flow passage port through which the granular material on the perforated plate can move from a region including the center of the sieve frame to a region including the coarse particle discharge port, and the width of the granular material flow passage port is circular. It is characterized by being set to 3% or more of the diameter of the sieve frame.
  • the raw material granular material is introduced into the central portion in the sieving frame of the upper sorting chamber, and the raw material granular material that has been introduced has openings of a predetermined size.
  • the perforated plate for example, punching metal
  • it is sorted into coarse particles that do not pass through the eyes of the perforated plate and powder particles including normal particles that pass through the eyes of the perforated plate.
  • the selected coarse particles are discharged from the coarse particle discharge port.
  • normal particles that have been insufficiently selected are also discharged from the coarse particle discharge port.
  • one end as described above is connected to the position of one end in the circumferential direction of the coarse frame outlet of the sieve frame, and is longer than the radius of the circular sieve frame.
  • the extending rectifying plate is arranged so as to be inclined and extend toward the region side including the coarse particle discharge port with respect to the direction passing through the center of the circular sieve frame, and the powder particles on the extension line of the other end of the rectifying plate A body channel port is provided.
  • the granular material on the perforated plate does not flow in a short-circuit direction from the central portion in the sieve frame of the input upper sorting chamber to the coarse particle outlet, but is guided by the current plate, that is, the current
  • the perforated plate is guided from the region including the center of the circular sieve frame in the upper sorting chamber defined by the plate to the region including the coarse particle discharge port through the granular material channel port, and then the coarse particle discharge is performed. It flows toward the outlet and follows a path that is discharged in a form including coarse particles selected from the coarse particle outlet.
  • the specific flow straightening plate prevents short-circuit movement of the normal particles to the coarse particle discharge port, and the traveling path (flow path) of the granular material on the porous plate becomes long.
  • the layer thickness of the granular material on the plate is made uniform, the contact time of the granular material with the perforated plate is lengthened, the sorting efficiency between coarse particles and normal particles is increased, and the coarse particle outlet is sorted.
  • the width of the above-mentioned granular material flow passage opening provided on the front end side of the current plate is set to 3% or more of the diameter of the circular sieve frame, The inconvenience of causing an overflow due to the clogging of the granular material that does not completely pass through the flow passage opening of the granular material is avoided, and a significant improvement in the collection yield of normal particles as described above is reliably achieved. It is supposed to be done.
  • the cylindrical sieving apparatus it is possible to adopt a form in which the coarse grain outlets are provided at a plurality of locations in the circumferential direction of the sieving frame, but one location in the circumferential direction of the sieving frame. It is preferable to adopt a form provided only by the above. By being provided only at one place, the operation and effect of the current plate as described above can be obtained more reliably.
  • the length of the rectifying plate needs to be longer than the radius of the circular sieve frame, and further, as the length from the connection position to the sieve frame to one end of the granular material channel port
  • the diameter of the circular sieve frame is preferably set to 70% or more.
  • the current plate is disposed so as to be inclined and extend toward the region side including the coarse grain discharge port with respect to the direction passing through the center of the circular sieve frame. At this time, the current plate is connected to the sieve frame. And a diameter range of 5 to 28 degrees with respect to the diameter direction of the sieve frame passing through the center of the circular sieve frame.
  • a flat plate portion having no hole different from the porous plate is provided in the central portion in the sieving frame of the upper sorting chamber.
  • the length of the current plate may be set to the optimum value, but when the type or lot of the raw material granular material to be selected is changed The optimum value of length may change.
  • a rectifying plate length adjusting mechanism capable of adjusting the length of the rectifying plate is provided at one end side portion of the powder particle passage opening of the rectifying plate.
  • the angle of the rectifying plate can be adjusted to the position of the rectifying plate connected to the sieve frame, for example, with respect to the angle of the rectifying plate connected to the sieving frame and the diameter direction of the sieving frame passing through the center of the circular sieve frame. If a straightening plate angle adjusting mechanism is provided, the angle of the straightening plate can be easily adjusted to an optimum angle as necessary.
  • the rectifying plate length adjusting mechanism also serves as a mechanism for adjusting the width of the granular material channel opening provided on the tip side of the rectifying plate, the length of the rectifying plate and the width of the granular material channel port are optimized simultaneously. It becomes possible to adjust to the value.
  • the granular material after the coarse particles sorted in the upper sorting chamber are removed at the lower portion of the upper sorting chamber.
  • the granular material after the coarse particles sorted in the above-mentioned upper sorting chamber are removed can be further removed by the vibrating porous plate and the normal size within the target range and the size less than that It is possible to adopt a configuration having a middle sorting chamber capable of sorting into the powder. Furthermore, a lower chamber in which powder can be taken out can be provided at the lower part of the middle sorting chamber. The installation room can be determined as necessary.
  • the type of the input raw material granular material to be selected in the cylindrical sieve device according to the present invention is not particularly limited, but the cylindrical sieve device according to the present invention is, for example, a resin pellet cut to a predetermined length ( (Including composite pellets containing components other than resin).
  • the present invention also provides a method for selecting a granular material by using the cylindrical sieve device as described above to select the granular material.
  • This method for selecting a granular material according to the present invention is also optimal for use in, for example, selecting resin pellets cut into a predetermined length (including composite material pellets containing components other than resin).
  • the specific flow straightening plate is provided in the specific arrangement form in the upper sorting chamber, and the raw material granular material charged on the vibrating perforated plate Since the width of the granular material flow passage opening for guiding the granular material to flow between the regions on both sides partitioned by the rectifying plate is set to a specific width or more, the coarse selected The amount of normal grains discharged from the coarse grain outlet along with the grains can be greatly reduced, and the collection yield of normal grains in this apparatus can be greatly increased.
  • FIG. 2 is a perspective view of an upper sorting chamber showing a characteristic part of the present invention in the cylindrical sieve device of FIG. 1.
  • FIG. 3 is a schematic plan view of the upper sorting chamber of FIG. 2 showing an example of the flow state of the granular material in the present invention. It is a perspective view of the upper sorting room which shows an example of a prior art.
  • FIG. 1 shows a cylindrical sieving device 1 according to an embodiment of the present invention, showing an overall configuration common to the prior art as described above.
  • an upper sorting chamber 22 is formed in a sieve frame 21 having a circular planar shape, and a predetermined size different from that of the porous plate 23 is formed in the central portion of the upper sorting chamber 22.
  • the flat plate part 25 without the holes 24 is provided.
  • the granular material having a length corresponding to the coarse particle is arranged in the longitudinal direction of the eyes (holes) 24 of the porous plate 23. The phenomenon of passing through the eyes (holes) 24 as it is by being thrown in a posture directed in the direction is suppressed.
  • the raw material granular material 3 introduced from the granular material inlet 2 as shown in FIG. 1 is added by the vibration means 5 (FIG. 1) in the sieve frame 21 (FIG. 2).
  • the vibrating perforated plate 23 (FIG. 2) having the holes 24 of a predetermined size to be shaken, coarse particles are sorted into other granular materials (a granular material including normal particles of normal size and powder targeted). Is done.
  • the selected coarse particles are discharged from the coarse particle discharge port 26 (FIG. 2), and the granular material 9 (FIG. 1) after the coarse particles are removed is, as described above, the lower middle sorting chamber 10 (FIG. 1). ) And is sorted into normal grains and powder in the middle sorting chamber 10.
  • the normal particles sorted in the middle sorting chamber 10 are discharged from the normal particle discharge port 12 (FIG. 1), the powder 13 (FIG. 1) is dropped into the lower chamber 14 (FIG. 1), and the powder discharge port 15 (FIG. 1). ) Is discharged.
  • the angle can be adjusted in the upper sorting chamber 22 so that one end of the sieve frame 21 is positioned at one end side in the circumferential direction of the sieve frame 21 of the coarse grain outlet 26.
  • a rectifying plate 28 is provided which is connected via the connecting portion 27 and extends longer than the radius of the circular sieve frame 21.
  • the material of the current plate 28 is not particularly limited, but it is desirable to use a material that can withstand friction with the powder particles.
  • the current plate 28 extends so as to incline toward the region A (shown in FIG. 3) including the coarse grain outlet 26 with respect to the direction of the diameter 29 (shown in FIG. 3) passing through the center C of the circular sieve frame 21. Has been placed.
  • a region B (shown in FIG. 3) including the center C of the circular sieve frame in the upper sorting chamber defined by the flow straightening plate 28.
  • a granular material channel port 30 Through which the granular material on the porous plate 23 can move.
  • the width W (illustrated in FIG. 3) of the granular material channel port 30 is set to 3% or more of the diameter of the circular sieve frame 21.
  • a slide mechanism capable of adjusting the position of the tip portion is provided on the tip side of the powder passage opening 30 of the rectifying plate 28, and this slide mechanism adjusts the length of the rectifying plate 28.
  • a possible rectifying plate length adjusting mechanism 31 is configured. Further, in this embodiment, a part of the rectifying plate length adjusting mechanism 31 is extended to the forming part of the powder channel opening 30, and the rectifying plate length adjusting mechanism 31 is adjusted along the extending part 32. By doing so, the width
  • the anti-rectifying plate 28 side portion of the granular material channel port 30, that is, the anti-rectifying plate 28 side portion of the extension portion 32 is connected to the sieve frame 21 via the connection portion 33, and through the connection, Finally, the arrangement of the rectifying plate 28 and the position of the granular material flow passage port 30 are determined.
  • the length of the current plate 28 arranged as described above may be longer than the radius of the circular sieve frame 21 as described above, but is desirably set to 70% or more of the diameter of the circular sieve frame 21.
  • the distance L between the outer periphery of the flat plate portion 25 provided at the central portion in the sieve frame 21 and the rectifying plate 28 is, for example, in a range of about ⁇ 9% to 15% with respect to the diameter of the sieve frame 21. (A minus sign indicates a state in which the rectifying plate 28 is disposed on the flat plate portion 25).
  • Cylindrical vibratory sieve device having a structure as shown in FIG. 1 is selected by compounding a reinforcing agent, an additive, and a colorant into a PPS (polyphenylene sulfide) resin and cutting.
  • PPS polyphenylene sulfide
  • a technical baffle was provided and tested as follows.
  • the raw material pellets as a granular material were supplied at a rate of about 8400 g / min using a cylindrical sieve device having a sieve frame diameter of 615 mm, and a sorting process was performed.
  • Example 1 As an installation condition of the current plate, the angle is 22 ° from the current plate attachment position and the line passing through the center of the screen, and the length is 90.2% (555 mm) with respect to the diameter of the screen frame of the cylindrical screen device.
  • the flow path width of the resin pellet (width of the granular material flow path opening) is 3.3% (20 mm) with respect to the diameter of the sieve frame of the cylindrical sieve device. It was found that 6.5% (40 mm) is suitable for the distance to the diameter of the sieve frame.
  • the PPS resin is introduced from the powder and material inlet, starts moving by vibration on the punching metal, and moves while contacting the punching metal and the current plate.
  • Example 2 Comparative Example 2
  • the installation angle of the current plate is 22 ° to 4.5 °, and the length is 90.2% (555 mm) to 97.8% (601 mm) with respect to the diameter of the sieve frame of the cylindrical sieve device.
  • the distance between the outer periphery of the flat plate part without punch holes at the center of the sieve frame and the current plate is 6.5% (40 mm) to -8.1% (-50 mm) with respect to the diameter of the sieve frame, was selected in the same manner as in Example 1 at three levels of 1.6% (10 mm), 3.3% (20 mm), and 7.3% (45 mm) with respect to the diameter of the sieve frame.
  • Example 3 Comparative Example 3
  • the installation angle of the current plate is 22 ° to 11 °, and the length is 90.2% (555 mm) to 96.7% (595 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device.
  • the distance between the outer periphery of the flat plate part without punch holes at the center of the sieve frame and the current plate is 6.5% (40 mm) to 0% (0 mm) with respect to the diameter of the sieve frame, and the width of the powder channel opening is set to the sieve frame.
  • Selection in the same manner as in Example 1 at four levels of 1.6% (10 mm), 3.3% (20 mm), 7.3% (45 mm), and 11.4% (70 mm) went.
  • Example 4 Comparative Example 4 Compared to Example 1, the installation angle of the current plate is 22 ° to 17.5 °, and the length is 90.2% (555 mm) to 94.3% (580 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device.
  • the distance between the outer periphery of the flat plate portion without punch holes in the central portion of the sieve frame and the current plate is 6.5% (40 mm) to 4.9% (30 mm) with respect to the diameter of the sieve, and the width of the granular material channel opening
  • this level was set to Comparative Example 4. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 3.
  • Example 5 Comparative Example 5
  • the width of the powder channel opening was changed to three levels of 1.6% (10 mm), 7.3% (45 mm), and 11.4% (70 mm) with respect to the diameter of the sieve frame. Except for the above, selection was performed in the same manner as in Example 1 under the same conditions as in Example 1. As a result, when the width of the granular material flow passage opening was 1.6% of the diameter of the sieve frame, the width of the granular flow passage opening was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set as Comparative Example 5. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 4.
  • Example 6 Comparative Example 6
  • the installation angle of the current plate is 22 ° to 28.5 °, and the length is 90.2% (555 mm) to 85.4% (525 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device. )
  • the distance between the outer periphery of the flat plate portion without punch holes in the central portion of the sieve frame and the current plate is 6.5% (40 mm) to 11.4% (70 mm) with respect to the diameter of the sieve frame, and the width of the flow passage opening is set to Sorting was performed in the same manner as in Example 1 at three levels of 1.6% (10 mm), 3.3% (20 mm), and 7.3% (45 mm).
  • the cylindrical sieving apparatus according to the present invention is used for the selection process in the compound production of the thermoplastic resin.
  • the processing object to be selected by the cylindrical sieving apparatus according to the present invention Is not limited to a thermoplastic resin compound, and can be applied to sorting objects in all other fields.
  • the cylindrical sieving apparatus according to the present invention and the method of selecting a granular material using the cylindrical sieving apparatus can be applied to the selection of any granular material that is required to reduce the amount of normal particles discharged to the coarse particle outlet, and as a whole device The yield of normal grains can be greatly improved.

Abstract

The present invention is a cylindrical sieve device comprising an upper sorting chamber provided with an oscillating perforated plate and a coarse grain-discharging port, and a granular material-sorting method using same. The cylindrical sieve device is characterized in that: a flow-regulating plate extending longer than the radius of a circular sieve frame is provided inside the upper sorting chamber; said flow-regulating plate is disposed at a slant with respect to the direction that passes through the center of the sieve frame and toward a region comprising the coarse grain-discharging port; a granular material flow channel opening through which a granular material on the perforated plate can be moved between the two regions partitioned by the flow-regulating plate is provided on an extension line of the flow-regulating plate; and the width of said granular material flow channel opening is set to be at least 3% of the diameter of the circular sieve frame. The cylindrical sieve device is able to significantly reduce the amount of normal grains discharged together with the coarse grains and is able to significantly improve yield when the normal grains are made into product.

Description

円筒型篩装置およびそれを用いた粉粒体の選別方法Cylindrical sieving device and method for selecting powder particles using the same
　本発明は、円筒型篩装置およびそれを用いた粉粒体の選別方法に関し、とくに、選別された粗大粒とともに排出される正常粒の量を低減し、正常粒の採取収率を高めるようにした円筒型篩装置およびそれを用いた粉粒体の選別方法に関する。 The present invention relates to a cylindrical sieving device and a method for selecting a granular material using the same, and in particular, to reduce the amount of normal particles discharged together with the selected coarse particles and increase the collection yield of normal particles. The present invention relates to a cylindrical sieving apparatus and a method for selecting a granular material using the same.
　粉粒体としての樹脂ペレットは、例えば、熱可塑性樹脂に強化剤や着色剤などをコンパウンドし付加価値を新たに加えた樹脂のペレットは、口金の吐出口から押出、成形された長尺の樹脂を、長さ方向に対して垂直方向に切断することで製造される。切断された粒状の樹脂は総称して「樹脂ペレット」と呼ばれ、各種分野において、例えば、自動車や電気部品の分野において、成形加工原料として使用される。 Resin pellets as powder particles are, for example, long resin that is compounded with a thermoplastic resin with a reinforcing agent or a colorant, and newly added value is extruded and molded from the discharge port of the die. Is cut in a direction perpendicular to the length direction. The cut granular resin is collectively referred to as “resin pellet”, and is used as a raw material for molding in various fields, for example, in the field of automobiles and electrical parts.
　このような樹脂ペレットの切断面の形状は吐出口の形状によって決まるため安定しているが、長さ方向の形状（サイズ）については、材料の特性や切断条件によって形状不良ペレットが生じてしまうことがある。 The shape of the cut surface of such a resin pellet is stable because it is determined by the shape of the discharge port, but the shape (size) in the length direction may result in a poorly shaped pellet depending on the material characteristics and cutting conditions. There is.
　形状不良ペレットは成形機内部への不安定なフィードを誘発し成形工程上大きな影響を与えるため、ペレット形状のばらつきをある程度の範囲内に抑える必要がある。ばらつきを抑え、サイズがある程度の範囲内に納められたペレットを得るためには、サイズに関して、とくにペレットの長さに関して、正常粒とそれ以外とに選別することが有効である。 <Poor shape pellets induce unstable feed into the molding machine and have a great influence on the molding process. Therefore, it is necessary to keep the pellet shape variation within a certain range. In order to suppress the variation and obtain pellets having a size within a certain range, it is effective to select normal grains and other pellets with respect to the size, in particular, the length of the pellet.
　発生した形状不良ペレットを選別する方法としては、振動篩装置によって投入ペレットを長さに応じて篩分けする方法が挙げられる。振動篩装置としては、例えば、投入材料を篩分けする所定の目開きのパンチングメタル(多孔板)と、該パンチングメタルを加振する加振手段を有し、篩分け対象となる材料をパンチングメタル上に投入する振動篩装置が知られている(例えば、特許文献１～７)。 As a method of sorting out the generated poorly shaped pellets, there is a method of sieving the input pellets according to the length using a vibration sieve device. As the vibration sieving device, for example, a punching metal (perforated plate) having a predetermined opening for sieving the input material, and a vibration means for oscillating the punching metal, the material to be sieved is punched metal. Vibrating sieve devices that are thrown into the top are known (for example, Patent Documents 1 to 7).
　この種の振動篩装置としては、例えば図１に示すような円筒型篩装置が知られている（図１に示す円筒型篩装置は、従来技術の説明と本発明の説明とに共通して用いる）。図１に示す円筒型篩装置１においては、粉粒体投入口２から投入された原料粉粒体３を、篩枠４内に加振手段５により加振される所定の目開きのパンチングメタル(多孔板)６が設けられた上部選別室７内で粗大粒をそれ以外の粉粒体（目標とする正常サイズの正常粒と紛体とを含む粉粒体）とに選別し、選別された粗大粒を粗大粒排出口８から排出するようになっている。主として粗大粒が除去された後の粉粒体９は、下方の中部選別室１０に落下され、上記パンチングメタル(多孔板)６よりも小さい目開きの加振パンチングメタル(多孔板)１１上で、正常粒と紛体とに選別され、正常粒は正常粒排出口１２から排出され、紛体１３は下部室１４に落下され、紛体排出口１５から排出されるようになっている。 For example, a cylindrical sieve device as shown in FIG. 1 is known as this type of vibrating sieve device (the cylindrical sieve device shown in FIG. 1 is common to the description of the prior art and the description of the present invention. Use). In the cylindrical sieving apparatus 1 shown in FIG. 1, a punching metal having a predetermined opening in which a raw material granular material 3 introduced from a granular material inlet 2 is vibrated in a sieve frame 4 by a vibration means 5. In the upper sorting chamber 7 provided with the (perforated plate) 6, the coarse particles are sorted into other granular materials (powder particles including target normal size normal particles and powder) and selected. Coarse grains are discharged from the coarse grain outlet 8. After the coarse particles are mainly removed, the granular material 9 is dropped into the lower middle sorting chamber 10 and on the vibrating punching metal (porous plate) 11 having an opening smaller than the punching metal (porous plate) 6. The normal particles and the powder are sorted, the normal particles are discharged from the normal particle discharge port 12, and the powder 13 is dropped into the lower chamber 14 and discharged from the powder discharge port 15.
　このような従来の円筒型篩装置においては、例えば図４に示すように、上部選別室７内において、投入された原料粉粒体を極力万遍なくパンチングメタル６上に分布させ、パンチングメタル６による選別処理に供することができるように、パンチングメタル６上での原料粉粒体の流動を制御する整流板１６を、篩枠４の内周面から内方に向けて短く延びるように設ける構造が知られている(例えば、特許文献１、２、５)。 In such a conventional cylindrical sieving apparatus, as shown in FIG. 4, for example, in the upper sorting chamber 7, the charged raw material granular material is distributed as much as possible on the punching metal 6 as much as possible. The structure which provides the baffle plate 16 which controls the flow of the raw material granular material on the punching metal 6 so that it may extend inwardly from the inner peripheral surface of the sieve frame 4 so that it can use for the selection process by (3). Is known (for example, Patent Documents 1, 2, and 5).
特開２０００―１３５４７４号公報JP 2000-135474 A 特開２００５―３０５３８６号公報JP-A-2005-305386 特開２０１２―２１７８９９号公報JP 2012-217899 A 特開２０１３―２５２４９３号公報JP 2013-252493 A 特開平０３―２１３１８１号公報Japanese Patent Laid-Open No. 03-213181 特開平１０―３０９５２７号公報JP-A-10-309527 特開平１１―３１９７１６号公報Japanese Patent Laid-Open No. 11-319716
　ところが、図４に示したような従来の円筒型篩装置において、篩枠４の内周面から内方に向けて短く延びる整流板１６を設けるだけでは、パンチングメタル６上で原料粉粒体を均一に分布させる効果が不十分であるのに加え、原料粉粒体の投入部から粗大粒排出口８までの流動距離が短いため、粗大粒排出口８からは選別された粗大粒とともに選別が十分に行われなかった正常粒が排出されてしまう。粗大粒排出口８からの正常粒の排出量が多くなると、篩装置全体による選別における正常粒の採取収率が低くなり、正常粒が採取製品である場合の歩留まりが悪化することとなる。 However, in the conventional cylindrical sieving apparatus as shown in FIG. 4, the raw material granular material is formed on the punching metal 6 only by providing the rectifying plate 16 that extends short inward from the inner peripheral surface of the sieving frame 4. In addition to the effect of uniform distribution being insufficient, the flow distance from the raw material granule input part to the coarse grain outlet 8 is short, so that the coarse grain outlet 8 can sort together with the selected coarse grains. Normal grains that have not been sufficiently performed are discharged. If the discharge amount of normal particles from the coarse particle discharge port 8 increases, the collection yield of normal particles in sorting by the entire sieving device is lowered, and the yield when the normal particles are collected products is deteriorated.
　そこで本発明の課題は、上記のような従来の篩装置における問題点に着目し、粗大粒とともに排出される正常粒の量を大幅に低減することができ、正常粒を製品とする場合の歩留まりを大幅に向上可能な円筒型篩装置と、それを用いた粉粒体の選別方法を提供することにある。 Therefore, the object of the present invention is to pay attention to the problems in the conventional sieving apparatus as described above, and the amount of normal grains discharged together with coarse grains can be greatly reduced. Is to provide a cylindrical sieving apparatus capable of greatly improving the above and a method for selecting a granular material using the same.
　上記課題を解決するために、本発明に係る円筒型篩装置は、上部に、平面形状が円形の篩枠内に該篩枠内の中央部に投入された原料粉粒体を粗大粒とそれ以外の粉粒体とに選別可能な振動多孔板が設けられているとともに、前記篩枠に前記多孔板上で選別された粗大粒を排出する粗大粒排出口が設けられた上部選別室を有する円筒型篩装置において、前記上部選別室内に、一方の端部が前記篩枠の前記粗大粒排出口の篩枠周方向一端側の位置に接続され、円形の篩枠の半径よりも長く延びる整流板を設け、該整流板を、円形の篩枠の中心を通る方向に対し前記粗大粒排出口を含む領域側に傾いて延びるように配置するとともに、前記上部選別室内の前記整流板の他方の端部の延長線上に、前記整流板により区画された前記上部選別室内の円形の篩枠の中心を含む領域から前記粗大粒排出口を含む領域へと前記多孔板上の粉粒体が移動可能な粉粒体流路口を設け、該粉粒体流路口の幅を、円形の篩枠の直径の３％以上に設定したことを特徴とするものからなる。 In order to solve the above-mentioned problems, a cylindrical sieve device according to the present invention comprises a raw material granule placed in a central part of the sieve frame in a sieve frame having a circular planar shape, and coarse particles. A vibrating perforated plate that can be sorted into other granular materials is provided, and an upper sorting chamber in which a coarse particle discharge port for discharging coarse particles sorted on the porous plate is provided in the sieve frame. In the cylindrical sieving apparatus, one end of the sieving frame is connected to a position on one end side in the sieving frame circumferential direction of the coarse grain outlet, and the rectification extends longer than the radius of the circular sieving frame. A plate is disposed so as to be inclined and extend toward the region including the coarse grain outlet with respect to the direction passing through the center of the circular sieve frame, and the other of the current plates in the upper sorting chamber. A circle in the upper sorting chamber partitioned by the current plate on the extension line of the end Providing a granule flow passage port through which the granular material on the perforated plate can move from a region including the center of the sieve frame to a region including the coarse particle discharge port, and the width of the granular material flow passage port is circular. It is characterized by being set to 3% or more of the diameter of the sieve frame.
　このような本発明に係る円筒型篩装置においては、上部選別室の篩枠内の中央部に原料粉粒体が投入され、投入された原料粉粒体は、所定のサイズの目が開孔された多孔板（例えば、パンチングメタル）の振動により、該多孔板の目を通過しない粗大粒と、多孔板の目を通過する正常粒を含む粉粒体とに選別される。選別された粗大粒は、粗大粒排出口から排出されるが、このとき、選別が不十分であった正常粒も粗大粒排出口から排出されようとする。しかし本発明においては、上部選別室内に、上記のような、一方の端部が篩枠の粗大粒排出口の篩枠周方向一端側の位置に接続され、円形の篩枠の半径よりも長く延びる整流板が、円形の篩枠の中心を通る方向に対し粗大粒排出口を含む領域側に傾いて延びるように配置されており、かつ、整流板の他方の端部の延長線上に粉粒体流路口が設けられている。したがって、多孔板上の粉粒体は、投入された上部選別室の篩枠内の中央部から粗大粒排出口に向けて短絡的に流動することはなく、整流板により案内され、すなわち、整流板により区画された上部選別室内の円形の篩枠の中心を含む領域から、粉粒体流路口を通して、上記粗大粒排出口を含む領域へと上記多孔板上を案内され、しかる後に粗大粒排出口に向けて流動して、該粗大粒排出口から選別された粗大粒を含む形態にて排出される経路を辿る。このように、特定の整流板によって、正常粒の粗大粒排出口への短絡的な移動が阻止されるとともに、粉粒体の多孔板上での進行経路(流動経路)が長くなるため、多孔板上での粉粒体の層厚みが均一化され、粉粒体の多孔板への接触時間が長くなり、粗大粒と正常粒等との選別効率が高められ、粗大粒排出口まで選別されずに流動されてしまう正常粒の量が大幅に低減される。その結果、粗大粒とともに粗大粒排出口から排出される正常粒の量が大幅に低減され、本装置における正常粒の採取収率が大幅に高められる。また、本発明では、整流板の先端側に設けられる上記粉粒体流路口の幅が、円形の篩枠の直径の３％以上に設定されているので、多孔板上を流動しようとしている粉粒体が該粉粒体流路口を通過し切れずにその部位で詰まりを発生してオーバーフローを引き起こす不都合な現象も回避され、上述の如き正常粒の採取収率の大幅な向上が確実に達成されることとなっている。 In such a cylindrical sieving apparatus according to the present invention, the raw material granular material is introduced into the central portion in the sieving frame of the upper sorting chamber, and the raw material granular material that has been introduced has openings of a predetermined size. By the vibration of the perforated plate (for example, punching metal), it is sorted into coarse particles that do not pass through the eyes of the perforated plate and powder particles including normal particles that pass through the eyes of the perforated plate. The selected coarse particles are discharged from the coarse particle discharge port. At this time, normal particles that have been insufficiently selected are also discharged from the coarse particle discharge port. However, in the present invention, in the upper sorting chamber, one end as described above is connected to the position of one end in the circumferential direction of the coarse frame outlet of the sieve frame, and is longer than the radius of the circular sieve frame. The extending rectifying plate is arranged so as to be inclined and extend toward the region side including the coarse particle discharge port with respect to the direction passing through the center of the circular sieve frame, and the powder particles on the extension line of the other end of the rectifying plate A body channel port is provided. Therefore, the granular material on the perforated plate does not flow in a short-circuit direction from the central portion in the sieve frame of the input upper sorting chamber to the coarse particle outlet, but is guided by the current plate, that is, the current The perforated plate is guided from the region including the center of the circular sieve frame in the upper sorting chamber defined by the plate to the region including the coarse particle discharge port through the granular material channel port, and then the coarse particle discharge is performed. It flows toward the outlet and follows a path that is discharged in a form including coarse particles selected from the coarse particle outlet. In this way, the specific flow straightening plate prevents short-circuit movement of the normal particles to the coarse particle discharge port, and the traveling path (flow path) of the granular material on the porous plate becomes long. The layer thickness of the granular material on the plate is made uniform, the contact time of the granular material with the perforated plate is lengthened, the sorting efficiency between coarse particles and normal particles is increased, and the coarse particle outlet is sorted. The amount of normal grains that will flow without being drastically reduced. As a result, the amount of normal grains discharged from the coarse grain outlet along with the coarse grains is greatly reduced, and the collection yield of normal grains in this apparatus is greatly increased. In the present invention, since the width of the above-mentioned granular material flow passage opening provided on the front end side of the current plate is set to 3% or more of the diameter of the circular sieve frame, The inconvenience of causing an overflow due to the clogging of the granular material that does not completely pass through the flow passage opening of the granular material is avoided, and a significant improvement in the collection yield of normal particles as described above is reliably achieved. It is supposed to be done.
　上記本発明に係る円筒型篩装置においては、上記粗大粒排出口が、篩枠の周方向の複数箇所に設けられている形態を採ることも可能であるが、篩枠の周方向に１箇所だけ設けられている形態を採用することが好ましい。１箇所だけに設けられていることにより、上記のような整流板による作用、効果がより確実に得られる。 In the cylindrical sieving apparatus according to the present invention, it is possible to adopt a form in which the coarse grain outlets are provided at a plurality of locations in the circumferential direction of the sieving frame, but one location in the circumferential direction of the sieving frame. It is preferable to adopt a form provided only by the above. By being provided only at one place, the operation and effect of the current plate as described above can be obtained more reliably.
　また、上記整流板の長さについては、円形の篩枠の半径よりも長いことが必要であるが、さらに、上記篩枠への接続位置から上記粉粒体流路口の一端までの長さとして、円形の篩枠の直径の７０％以上に設定されていることが好ましい。整流板の長さをこのように設定することにより、前述のような整流板による作用、効果がより確実に得られる。但し、整流板の先端側に設けられる上記粉粒体流路口の幅が、円形の篩枠の直径の３％以上に設定されることが前提となる。 Further, the length of the rectifying plate needs to be longer than the radius of the circular sieve frame, and further, as the length from the connection position to the sieve frame to one end of the granular material channel port The diameter of the circular sieve frame is preferably set to 70% or more. By setting the length of the current plate in this way, the operation and effect of the current plate as described above can be obtained more reliably. However, it is a premise that the width of the granular material channel opening provided on the front end side of the current plate is set to 3% or more of the diameter of the circular sieve frame.
　また、上記整流板は、円形の篩枠の中心を通る方向に対し粗大粒排出口を含む領域側に傾いて延びるように配置されるが、このとき、整流板は、篩枠への接続位置と円形の篩枠の中心とを通る篩枠の直径方向に対し、５～２８度の角度範囲内に配置されていることが好ましい。このような角度範囲内に整流板を配置することにより、多孔板上を案内される粉粒体の振動多孔板による良好な選別機能を発揮可能な領域を確保できるとともに、多孔板上を案内される粉粒体の多孔板との接触時間を長く確保でき、振動多孔板による選別機能自体の向上をはかることができる。 Further, the current plate is disposed so as to be inclined and extend toward the region side including the coarse grain discharge port with respect to the direction passing through the center of the circular sieve frame. At this time, the current plate is connected to the sieve frame. And a diameter range of 5 to 28 degrees with respect to the diameter direction of the sieve frame passing through the center of the circular sieve frame. By arranging the rectifying plate within such an angle range, it is possible to secure a region where a good sorting function can be achieved by the vibrating porous plate of the powder guided on the porous plate and to be guided on the porous plate. It is possible to ensure a long contact time of the granular material with the porous plate and improve the sorting function itself by the vibrating porous plate.
　また、本発明に係る円筒型篩装置においては、上部選別室の篩枠内の中央部に、上記多孔板とは異なる孔の無い平板部が設けられていることが好ましい。このような平板部が設けられていることにより、篩枠内の中央部に投入された原料粉粒体のうち、粗大粒に相当する長さを有する粒体が、その長手方向を多孔板の目の方向に向けた姿勢で投入されることにより多孔板によって選別されることなく目を通過してしまう現象を抑えることができ、上部選別室内における選別効率の低下を抑制できる。 Moreover, in the cylindrical sieving apparatus according to the present invention, it is preferable that a flat plate portion having no hole different from the porous plate is provided in the central portion in the sieving frame of the upper sorting chamber. By providing such a flat plate portion, among the raw material granular material charged in the central portion in the sieving frame, the granular material having a length corresponding to a coarse particle has a longitudinal direction of the porous plate. By throwing in the posture toward the eyes, the phenomenon of passing through the eyes without being sorted by the perforated plate can be suppressed, and the reduction of the sorting efficiency in the upper sorting chamber can be suppressed.
　また、整流板の長さの最適値が求められている場合には、整流板の長さをその最適値に設定すればよいが、選別対象原料粉粒体の種類やロットが変更された場合、長さの最適値が変化する可能性がある。このような場合に対応するためには、整流板の前記粉粒体流路口の一端側部分に、整流板の長さを調整可能な整流板長さ調整機構が設けられていることが好ましい。このような長さ調整機構が設けられていると、整流板の長さを必要に応じて最適な長さに容易に調整することができる。前述の整流板の、篩枠への接続位置と円形の篩枠の中心とを通る篩枠の直径方向に対する角度に関しても、例えば整流板の篩枠への接続位置に整流板の角度を調整可能な整流板角度調整機構を設けておくと、整流板の角度についても必要に応じて最適な角度に容易に調整することができるようになる。 In addition, when the optimum value of the length of the current plate is required, the length of the current plate may be set to the optimum value, but when the type or lot of the raw material granular material to be selected is changed The optimum value of length may change. In order to cope with such a case, it is preferable that a rectifying plate length adjusting mechanism capable of adjusting the length of the rectifying plate is provided at one end side portion of the powder particle passage opening of the rectifying plate. When such a length adjusting mechanism is provided, the length of the current plate can be easily adjusted to an optimum length as necessary. The angle of the rectifying plate can be adjusted to the position of the rectifying plate connected to the sieve frame, for example, with respect to the angle of the rectifying plate connected to the sieving frame and the diameter direction of the sieving frame passing through the center of the circular sieve frame. If a straightening plate angle adjusting mechanism is provided, the angle of the straightening plate can be easily adjusted to an optimum angle as necessary.
　また、上記整流板長さ調整機構が、整流板の先端側に設けられる粉粒体流路口の幅の調整機構を兼ねていると、整流板の長さと粉粒体流路口の幅を同時に最適値に調整することが可能になる。 In addition, when the rectifying plate length adjusting mechanism also serves as a mechanism for adjusting the width of the granular material channel opening provided on the tip side of the rectifying plate, the length of the rectifying plate and the width of the granular material channel port are optimized simultaneously. It becomes possible to adjust to the value.
　また、本発明に係る円筒型篩装置においては、前述の図１に示したように、上記上部選別室の下部に、該上部選別室内で選別された粗大粒が除去された後の粉粒体を取り出し可能な粉粒体取得室、または、上記上部選別室内で選別された粗大粒が除去された後の粉粒体をさらに振動多孔板により目標範囲内のサイズの正常粒とそれ未満のサイズの紛体とに選別可能な中部選別室を有する構成を採用することができる。さらに、中部選別室の下部に粉体を取り出し可能な下部室を設けることもできる。必要に応じて設置室を決めればよい。 In the cylindrical sieving apparatus according to the present invention, as shown in FIG. 1 described above, the granular material after the coarse particles sorted in the upper sorting chamber are removed at the lower portion of the upper sorting chamber. The granular material after the coarse particles sorted in the above-mentioned upper sorting chamber are removed can be further removed by the vibrating porous plate and the normal size within the target range and the size less than that It is possible to adopt a configuration having a middle sorting chamber capable of sorting into the powder. Furthermore, a lower chamber in which powder can be taken out can be provided at the lower part of the middle sorting chamber. The installation room can be determined as necessary.
　なお、本発明に係る円筒型篩装置で選別対象とする投入原料粉粒体の種類は、特に限定されないが、本発明に係る円筒型篩装置は、例えば、所定長に切断された樹脂ペレット(樹脂以外の成分を含有する複合材料のペレットを含む)の選別に用いて最適なものである。 The type of the input raw material granular material to be selected in the cylindrical sieve device according to the present invention is not particularly limited, but the cylindrical sieve device according to the present invention is, for example, a resin pellet cut to a predetermined length ( (Including composite pellets containing components other than resin).
　本発明は、上記のような円筒型篩装置を用いて粉粒体を選別する粉粒体の選別方法についても提供する。この本発明に係る粉粒体の選別方法も、例えば、所定長に切断された樹脂ペレット(樹脂以外の成分を含有する複合材料のペレットを含む)の選別に用いて最適なものである。 The present invention also provides a method for selecting a granular material by using the cylindrical sieve device as described above to select the granular material. This method for selecting a granular material according to the present invention is also optimal for use in, for example, selecting resin pellets cut into a predetermined length (including composite material pellets containing components other than resin).
　本発明に係る円筒型篩装置およびそれを用いた粉粒体の選別方法によれば、上部選別室内に特定の整流板を特定の配置形態にて設け、振動多孔板上で投入原料粉粒体を多孔板との長い接触時間をもって案内するとともに、整流板で区画された両側の領域間に粉粒体を流動させる粉粒体流路口の幅を特定幅以上に設定したので、選別された粗大粒とともに粗大粒排出口から排出される正常粒の量を大幅に低減することができ、本装置における正常粒の採取収率を大幅に高めることができる。 According to the cylindrical sieving apparatus and the granular material sorting method using the cylindrical sieving apparatus according to the present invention, the specific flow straightening plate is provided in the specific arrangement form in the upper sorting chamber, and the raw material granular material charged on the vibrating perforated plate Since the width of the granular material flow passage opening for guiding the granular material to flow between the regions on both sides partitioned by the rectifying plate is set to a specific width or more, the coarse selected The amount of normal grains discharged from the coarse grain outlet along with the grains can be greatly reduced, and the collection yield of normal grains in this apparatus can be greatly increased.
本発明の一実施態様に係る円筒型篩装置の従来技術と共通する全体構成を示す概略縦断面図である。It is a schematic longitudinal cross-sectional view which shows the whole structure common with the prior art of the cylindrical sieve apparatus which concerns on one embodiment of this invention. 図１の円筒型篩装置における本発明の特徴部分を示す上部選別室の斜視図である。FIG. 2 is a perspective view of an upper sorting chamber showing a characteristic part of the present invention in the cylindrical sieve device of FIG. 1. 本発明における粉粒体の流動状態の一例を示す図２の上部選別室の概略平面図である。FIG. 3 is a schematic plan view of the upper sorting chamber of FIG. 2 showing an example of the flow state of the granular material in the present invention. 従来技術の一例を示す上部選別室の斜視図である。It is a perspective view of the upper sorting room which shows an example of a prior art.
　以下に、本発明の実施の形態について、図面を参照しながら説明する。
　図１は、前述したように、従来技術と共通する全体構成を示す、本発明の一実施態様に係る円筒型篩装置１を示している。本実施態様においては、図２にも示すように、平面形状が円形の篩枠２１内に上部選別室２２が形成され、上部選別室２２の中央部には、多孔板２３とは異なる所定サイズの孔２４の無い平板部２５が設けられている。平板部２５により、篩枠２１内の中央部に投入された原料粉粒体のうち、粗大粒に相当する長さを有する粒体が、その長手方向を多孔板２３の目(孔)２４の方向に向けた姿勢で投入されることによりそのまま目(孔)２４を通過してしまう現象が抑制される。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a cylindrical sieving device 1 according to an embodiment of the present invention, showing an overall configuration common to the prior art as described above. In this embodiment, as shown in FIG. 2, an upper sorting chamber 22 is formed in a sieve frame 21 having a circular planar shape, and a predetermined size different from that of the porous plate 23 is formed in the central portion of the upper sorting chamber 22. The flat plate part 25 without the holes 24 is provided. Of the raw material granular material charged into the central portion of the sieve frame 21 by the flat plate portion 25, the granular material having a length corresponding to the coarse particle is arranged in the longitudinal direction of the eyes (holes) 24 of the porous plate 23. The phenomenon of passing through the eyes (holes) 24 as it is by being thrown in a posture directed in the direction is suppressed.
　上部選別室２２では、図１に示したような粉粒体投入口２から投入された原料粉粒体３が、篩枠２１(図２)内で、加振手段５(図１)により加振される所定サイズの孔２４を有する振動多孔板２３(図２)によって、粗大粒をそれ以外の粉粒体（目標とする正常サイズの正常粒と紛体とを含む粉粒体）とに選別される。選別された粗大粒は粗大粒排出口２６(図２)から排出され、粗大粒が除去された後の粉粒体９(図１)は、前述の如く、下方の中部選別室１０(図１)に落下され、中部選別室１０内で正常粒と紛体とに選別される。中部選別室１０内で選別された正常粒は正常粒排出口１２(図１)から排出され、紛体１３(図１)は下部室１４(図１)に落下され、紛体排出口１５(図１)から排出される。 In the upper sorting chamber 22, the raw material granular material 3 introduced from the granular material inlet 2 as shown in FIG. 1 is added by the vibration means 5 (FIG. 1) in the sieve frame 21 (FIG. 2). By virtue of the vibrating perforated plate 23 (FIG. 2) having the holes 24 of a predetermined size to be shaken, coarse particles are sorted into other granular materials (a granular material including normal particles of normal size and powder targeted). Is done. The selected coarse particles are discharged from the coarse particle discharge port 26 (FIG. 2), and the granular material 9 (FIG. 1) after the coarse particles are removed is, as described above, the lower middle sorting chamber 10 (FIG. 1). ) And is sorted into normal grains and powder in the middle sorting chamber 10. The normal particles sorted in the middle sorting chamber 10 are discharged from the normal particle discharge port 12 (FIG. 1), the powder 13 (FIG. 1) is dropped into the lower chamber 14 (FIG. 1), and the powder discharge port 15 (FIG. 1). ) Is discharged.
　本実施態様では、図２に示すように、上部選別室２２内に、一方の端部が篩枠２１の、粗大粒排出口２６の篩枠２１周方向一端側の位置に、角度調整可能な接続部２７を介して接続され、円形の篩枠２１の半径よりも長く延びる整流板２８が設けられている。整流板２８の材質は特に限定しないが粉粒体との摩擦に耐えうる素材を用いることが望ましい。整流板２８は、円形の篩枠２１の中心Ｃを通る直径２９(図３に図示)の方向に対し、粗大粒排出口２６を含む領域Ａ(図３に図示)側に傾いて延びるように配置されている。上部選別室２２内の上記整流板２８の他方の端部の延長線上には、整流板２８により区画された上記上部選別室内の円形の篩枠の中心Ｃを含む領域Ｂ(図３に図示)から上記粗大粒排出口２６を含む領域Ａへと多孔板２３上の粉粒体が移動可能な粉粒体流路口３０が設けられている。この粉粒体流路口３０の幅Ｗ(図３に図示)は、円形の篩枠２１の直径の３％以上に設定されている。本実施態様では、整流板２８の粉粒体流路口３０の先端側に、その先端部の位置を調整可能なスライド機構が設けられており、このスライド機構が、整流板２８の長さを調整可能な整流板長さ調整機構３１を構成している。また、本実施態様では、整流板長さ調整機構３１の一部が、粉粒体流路口３０の形成部まで延長されており、該延長部３２に沿って整流板長さ調整機構３１を調整することにより、粉粒体流路口３０の幅も調整できるようになっている。粉粒体流路口３０の反整流板２８側部位、つまり、上記延長部３２の反整流板２８側部位は、接続部３３を介して篩枠２１に接続されており、その接続を介して、最終的に、整流板２８の配置、粉粒体流路口３０の位置が決められている。 In this embodiment, as shown in FIG. 2, the angle can be adjusted in the upper sorting chamber 22 so that one end of the sieve frame 21 is positioned at one end side in the circumferential direction of the sieve frame 21 of the coarse grain outlet 26. A rectifying plate 28 is provided which is connected via the connecting portion 27 and extends longer than the radius of the circular sieve frame 21. The material of the current plate 28 is not particularly limited, but it is desirable to use a material that can withstand friction with the powder particles. The current plate 28 extends so as to incline toward the region A (shown in FIG. 3) including the coarse grain outlet 26 with respect to the direction of the diameter 29 (shown in FIG. 3) passing through the center C of the circular sieve frame 21. Has been placed. On the extension line of the other end of the flow straightening plate 28 in the upper sorting chamber 22, a region B (shown in FIG. 3) including the center C of the circular sieve frame in the upper sorting chamber defined by the flow straightening plate 28. To the region A including the coarse particle discharge port 26 is provided with a granular material channel port 30 through which the granular material on the porous plate 23 can move. The width W (illustrated in FIG. 3) of the granular material channel port 30 is set to 3% or more of the diameter of the circular sieve frame 21. In the present embodiment, a slide mechanism capable of adjusting the position of the tip portion is provided on the tip side of the powder passage opening 30 of the rectifying plate 28, and this slide mechanism adjusts the length of the rectifying plate 28. A possible rectifying plate length adjusting mechanism 31 is configured. Further, in this embodiment, a part of the rectifying plate length adjusting mechanism 31 is extended to the forming part of the powder channel opening 30, and the rectifying plate length adjusting mechanism 31 is adjusted along the extending part 32. By doing so, the width | variety of the granular material flow-path opening 30 can also be adjusted now. The anti-rectifying plate 28 side portion of the granular material channel port 30, that is, the anti-rectifying plate 28 side portion of the extension portion 32 is connected to the sieve frame 21 via the connection portion 33, and through the connection, Finally, the arrangement of the rectifying plate 28 and the position of the granular material flow passage port 30 are determined.
　上記のように配置される整流板２８の長さは、上述の如く、円形の篩枠２１の半径よりも長ければよいが、望ましくは、円形の篩枠２１の直径の７０％以上に設定される。また、図３に示すように、整流板２８の傾き配置に関しては、篩枠２１への接続位置２７と円形の篩枠２１の中心Ｃとを通る篩枠２１の直径２９方向に対する角度θとして、５～２８度の角度範囲内に配置されていることが好ましい。さらに、篩枠２１内の中央部に設けられた平板部２５の外周と整流板２８との間の距離Ｌとしては、例えば、篩枠２１の直径に対し－９％～１５％程度の範囲内にあることが好ましい（マイナス表示は整流板２８が平板部２５上に配置されている状態を示す）。 The length of the current plate 28 arranged as described above may be longer than the radius of the circular sieve frame 21 as described above, but is desirably set to 70% or more of the diameter of the circular sieve frame 21. The Further, as shown in FIG. 3, regarding the inclination arrangement of the rectifying plate 28, as an angle θ with respect to the diameter 29 direction of the sieving frame 21 passing through the connection position 27 to the sieving frame 21 and the center C of the circular sieving frame 21, It is preferably arranged within an angle range of 5 to 28 degrees. Further, the distance L between the outer periphery of the flat plate portion 25 provided at the central portion in the sieve frame 21 and the rectifying plate 28 is, for example, in a range of about −9% to 15% with respect to the diameter of the sieve frame 21. (A minus sign indicates a state in which the rectifying plate 28 is disposed on the flat plate portion 25).
　以下、本発明を実施例によってさらに具体的に説明する。
　ＰＰＳ（ポリフェニレンサルファイド）樹脂に強化剤、添加剤、着色剤をコンパウンドし、カッティングして得られた粉粒体の選別を、図１に示すような構成を有する円筒型振動篩装置（晃栄産業株式会社佐藤式ふるい機、上段パンチングメタルφ５ｍｍ×Ｐ（ピッチ）８ｍｍ（中央部平板部φ１６０ｍｍ）、下段メッシュφ０．７１ｍｍ×Ｐ１．４１ｍｍ×１２メッシュ）を用い、且つ、上部選別室に、実施例１～６、比較例２～６においては図２、図３に示したような整流板（材質：ＳＵＳ３０４）、粉粒体流路口を設け、比較例１においては図４に示したような従来技術の整流板を設けて、以下のように試験した。 Hereinafter, the present invention will be described more specifically with reference to examples.
Cylindrical vibratory sieve device having a structure as shown in FIG. 1 is selected by compounding a reinforcing agent, an additive, and a colorant into a PPS (polyphenylene sulfide) resin and cutting. Example using Sato-type sieve machine, upper punching metal φ5mm × P (pitch) 8mm (center flat plate φ160mm), lower mesh φ0.71mm × P1.41mm × 12mesh) 1 to 6 and Comparative Examples 2 to 6 are provided with a rectifying plate (material: SUS304) and a granular material passage port as shown in FIGS. 2 and 3, and in Comparative Example 1 as shown in FIG. A technical baffle was provided and tested as follows.
　以下に、実施例および比較例を挙げて本発明について具体的に説明するが、本発明はこれらの実施例のみに限定されるものではない。また、以下の実施例および比較例において［％］は、特に断りのない限り質量基準である。 Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples, but the present invention is not limited to only these Examples. In the following examples and comparative examples, [%] is based on mass unless otherwise specified.
　なお、以下の実施例、比較例では、篩枠直径６１５ｍｍの円筒型篩装置を用いて、約８４００ｇ／ｍｉｎで粉粒体としての原料ペレットを供給し、選別処理を行った。また、排出口から排出された粉粒体の評価基準は、粗大粒＝長径、短径、長さのいずれかが１つでも５．１ｍｍ以上であった場合、正常粒＝長径、短径、長さの３つ全てが５．０ｍｍ以下であったペレットをピンセットで分けて評価し、残ったものを粉体とした。 In the following Examples and Comparative Examples, the raw material pellets as a granular material were supplied at a rate of about 8400 g / min using a cylindrical sieve device having a sieve frame diameter of 615 mm, and a sorting process was performed. Moreover, the evaluation criteria of the granular material discharged from the discharge port is that when any one of coarse particles = long diameter, short diameter, length is 5.1 mm or more, normal particles = long diameter, short diameter, Pellets whose lengths were all 5.0 mm or less were divided and evaluated with tweezers, and the remaining ones were used as powder.
　まず、円筒型振動篩装置の運転開始から３０秒後篩パンチングメタル上へＰＰＳ樹脂の供給を開始した。粉粒体投入口からＰＰＳ樹脂を篩パンチングメタル上に一定量を連続的に供給し、粗大粒、正常粒、粉体の選別を一定時間行った。上段篩目（大）を通過しなかった選別対象物は、粗大粒排出口より採取した。上段篩目（大）を通過し且つ、下段篩目（小）を通過しなかった選別対象物は正常粒排出口より採取した。上段篩目（大）を通過し且つ、下段篩目（小）も通過した選別対象物は紛体排出口より各々採取した。 First, supply of PPS resin was started on the sieve punching metal 30 seconds after the start of operation of the cylindrical vibration sieve device. A fixed amount of PPS resin was continuously supplied onto the sieve punching metal from the powder particle inlet, and coarse particles, normal particles, and powder were selected for a certain time. The selection object that did not pass through the upper sieve mesh (large) was collected from the coarse grain outlet. The selection object that passed through the upper screen (large) and did not pass through the lower screen (small) was collected from the normal grain outlet. The selection objects that passed through the upper screen (large) and also passed through the lower screen (small) were collected from the powder outlet.
［実施例１］
　整流板の取付け条件として、角度は整流板取り付け位置から篩の中心を通る線との成す角度を２２°、長さは円筒型篩装置の篩枠の直径に対し９０．２％（５５５ｍｍ）、樹脂ペレットの流路幅(粉粒体流路口の幅)は円筒型篩装置の篩枠の直径に対し３．３％（２０ｍｍ）、篩枠中央部のパンチ孔無し平板部の外周と整流板との距離は篩枠の直径に対し６．５％（４０ｍｍ）が好適であることを見出した。ＰＰＳ樹脂は粉粒体投入口より投入されパンチングメタル上で振動により運動を始めパンチングメタル及び整流板に接触しながら移動する。このとき整流板を設けていることにより、下記比較例１に比べ、粉流体のパンチングメタルへの接触時間が飛躍的に延び、パンチングメタル中心部付近での処理量が増加し正常粒が粗大粒排出口まで移動し排出されることが顕著に減少した。さらに、ＰＰＳ樹脂の進行経路が延びたことによりパンチングメタルでの層厚みが平均化し、正常粒排出口での粗大粒排出量の絶対量も減少した。下段のメッシュ部での選別では、上部パンチングメタル中心部付近での処理量向上に伴い正常粒排出口への紛体の排出量の絶対量が減少した。長時間運転でも篩の処理能力の低下は起きない。結果を表１に示す。 [Example 1]
As an installation condition of the current plate, the angle is 22 ° from the current plate attachment position and the line passing through the center of the screen, and the length is 90.2% (555 mm) with respect to the diameter of the screen frame of the cylindrical screen device. The flow path width of the resin pellet (width of the granular material flow path opening) is 3.3% (20 mm) with respect to the diameter of the sieve frame of the cylindrical sieve device. It was found that 6.5% (40 mm) is suitable for the distance to the diameter of the sieve frame. The PPS resin is introduced from the powder and material inlet, starts moving by vibration on the punching metal, and moves while contacting the punching metal and the current plate. By providing the current plate at this time, the contact time of the powdered fluid with the punching metal is dramatically increased compared to Comparative Example 1 below, and the amount of processing in the vicinity of the center of the punching metal is increased, resulting in coarse grains. The movement to the discharge port and the discharge were significantly reduced. Furthermore, the extension of the PPS resin travel path averaged the layer thickness of the punching metal, and the absolute amount of coarse grain discharge at the normal grain outlet was also reduced. In the selection at the lower mesh part, the absolute amount of powder discharged to the normal grain outlet decreased with the improvement of the throughput near the center of the upper punching metal. The throughput of the sieve does not decrease even when operated for a long time. The results are shown in Table 1.
［比較例１］
　本発明による整流板を設けず、図４に示した従来技術による整流板２枚を備える円筒型振動篩装置を使用して選別を行った。つまり、本発明による整流板を設けていないため、本発明を適用していない構成の円筒型振動篩装置である。結果、上部選別室においてＰＰＳ樹脂がパンチングメタルと接触する時間が短く、粗大粒排出口へ正常粒が直行する傾向が見られた。粗大粒排出口での正常品排出量は実施例１と比較したとき８９．５％増加し、選別精度が不充分であることが判明した。 [Comparative Example 1]
Sorting was carried out using a cylindrical vibration sieve device provided with two rectifying plates according to the prior art shown in FIG. 4 without the rectifying plate according to the present invention. That is, since the current plate according to the present invention is not provided, the cylindrical vibration sieve device is configured not to apply the present invention. As a result, the time for the PPS resin to contact the punching metal in the upper sorting chamber was short, and there was a tendency for normal grains to go straight to the coarse grain outlet. The amount of normal products discharged from the coarse particle outlet increased by 89.5% when compared with Example 1, and it was found that the sorting accuracy was insufficient.
　また、正常粒排出口での粗大粒の混入量は、実施例１と比較したとき２１．４％増加し、選別精度が不充分であることが判明した。 Also, the amount of coarse particles mixed at the normal particle outlet increased by 21.4% when compared with Example 1, and it was found that the sorting accuracy was insufficient.
　また、正常粒排出口での紛体の混入量は、実施例１と比較したとき２９．４％増加し、選別精度が不充分であることが判明した。結果を表１に示す。 Also, the amount of powder mixed at the normal grain outlet increased by 29.4% when compared with Example 1, and it was found that the sorting accuracy was insufficient. The results are shown in Table 1.
［実施例２、比較例２］
　実施例１に対して、整流板の設置角度を２２°から４．５°、長さを円筒型篩装置の篩枠の直径に対し９０．２％（５５５ｍｍ）から９７．８％（６０１ｍｍ）、篩枠中央部のパンチ孔無し平板部の外周と整流板との距離は篩枠の直径に対し６．５％（４０ｍｍ）から－８．１％（－５０ｍｍ）とし、粉粒体流路口の幅を篩枠の直径に対し１．６％（１０ｍｍ）、３．３％（２０ｍｍ）、７．３％（４５ｍｍ）の３水準にて実施例１と同様な方法で選別を行った。結果、粉粒体流路口の幅が篩枠の直径に対し１．６％では、粉粒体流路口の幅が狭すぎたため処理しきれず詰まりが発生し、オーバーフローを引き起こした。したがって、この水準は比較例２とした。粉粒体流路口の幅を篩枠の直径に対し３．３％（２０ｍｍ）、７．３％（４５ｍｍ）の水準では、実施例１ほどではないにしても、比較例１に比べ、粗大粒排出口からの正常粒の排出量は大幅に減少することができた。結果を表１に示す。 [Example 2, Comparative Example 2]
Compared to Example 1, the installation angle of the current plate is 22 ° to 4.5 °, and the length is 90.2% (555 mm) to 97.8% (601 mm) with respect to the diameter of the sieve frame of the cylindrical sieve device. The distance between the outer periphery of the flat plate part without punch holes at the center of the sieve frame and the current plate is 6.5% (40 mm) to -8.1% (-50 mm) with respect to the diameter of the sieve frame, Was selected in the same manner as in Example 1 at three levels of 1.6% (10 mm), 3.3% (20 mm), and 7.3% (45 mm) with respect to the diameter of the sieve frame. As a result, when the width of the granular material channel opening was 1.6% with respect to the diameter of the sieve frame, the width of the granular material flow channel port was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set as Comparative Example 2. When the width of the granular material channel opening is 3.3% (20 mm) and 7.3% (45 mm) with respect to the diameter of the sieve frame, it is coarse compared with Comparative Example 1 although not as much as Example 1. The amount of normal grains discharged from the grain outlet was significantly reduced. The results are shown in Table 1.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
［実施例３、比較例３］
　実施例１に対して、整流板の設置角度を２２°から１１°、長さを円筒型振動篩装置の篩枠の直径に対し９０．２％（５５５ｍｍ）から９６．７％（５９５ｍｍ）、篩枠中央部のパンチ孔無し平板部の外周と整流板との距離は篩枠の直径に対し６．５％（４０ｍｍ）から０％（０ｍｍ）とし、粉粒体流路口の幅を篩枠の直径に対し１．６％（１０ｍｍ）、３．３％（２０ｍｍ）、７．３％（４５ｍｍ）、１１．４％（７０ｍｍ）の４水準にて実施例１と同様な方法で選別を行った。結果、粉粒体流路口の幅が篩枠の直径に対し１．６％の水準では、粉粒体流路口の幅が狭すぎたため処理しきれず詰まりが発生し、オーバーフローを引き起こした。したがって、この水準は比較例３とした。上記水準以外の条件では比較例１に対して粗大粒排出口からの正常粒の排出量は大幅に減少することができた。結果を表２に示す。 [Example 3, Comparative Example 3]
With respect to Example 1, the installation angle of the current plate is 22 ° to 11 °, and the length is 90.2% (555 mm) to 96.7% (595 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device. The distance between the outer periphery of the flat plate part without punch holes at the center of the sieve frame and the current plate is 6.5% (40 mm) to 0% (0 mm) with respect to the diameter of the sieve frame, and the width of the powder channel opening is set to the sieve frame. Selection in the same manner as in Example 1 at four levels of 1.6% (10 mm), 3.3% (20 mm), 7.3% (45 mm), and 11.4% (70 mm) went. As a result, when the width of the granular material flow passage opening was 1.6% of the diameter of the sieve frame, the width of the granular flow passage opening was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set as Comparative Example 3. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 2.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
［実施例４、比較例４］
　実施例１に対して、整流板の設置角度を２２°から１７．５°、長さを円筒型振動篩装置の篩枠の直径に対し９０．２％（５５５ｍｍ）から９４．３％（５８０ｍｍ）、篩枠中央部のパンチ孔無し平板部の外周と整流板との距離は篩の直径に対し６．５％（４０ｍｍ）から４．９％（３０ｍｍ）とし、粉粒体流路口の幅を篩枠の直径に対し１．６％（１０ｍｍ）、３．３％（２０ｍｍ）、７．３％（４５ｍｍ）、１１．４％（７０ｍｍ）の４水準にて実施例１と同様な方法で選別を行った。結果、粉粒体流路口の幅が篩枠の直径に対し１．６％の水準では、粉粒体流路口の幅が狭すぎたため処理しきれず詰まりが発生し、オーバーフローを引き起こした。したがって、この水準は比較例４とした。上記水準以外の条件では比較例１に対して粗大粒排出口からの正常粒の排出量は大幅に減少することができた。結果を表３に示す。 [Example 4, Comparative Example 4]
Compared to Example 1, the installation angle of the current plate is 22 ° to 17.5 °, and the length is 90.2% (555 mm) to 94.3% (580 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device. ), The distance between the outer periphery of the flat plate portion without punch holes in the central portion of the sieve frame and the current plate is 6.5% (40 mm) to 4.9% (30 mm) with respect to the diameter of the sieve, and the width of the granular material channel opening The same method as in Example 1 at four levels of 1.6% (10 mm), 3.3% (20 mm), 7.3% (45 mm) and 11.4% (70 mm) with respect to the diameter of the sieve frame Sorted by. As a result, when the width of the granular material flow passage opening was 1.6% of the diameter of the sieve frame, the width of the granular flow passage opening was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set to Comparative Example 4. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 3.
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
［実施例５、比較例５］
　実施例１に対して、粉粒体流路口の幅を篩枠の直径に対し１．６％（１０ｍｍ）、７．３％（４５ｍｍ）、１１．４％（７０ｍｍ）の３水準に変更した以外は実施例１と同じ条件のもと実施例１と同様な方法で選別を行った。結果、粉粒体流路口の幅が篩枠の直径に対し１．６％の水準では、粉粒体流路口の幅が狭すぎたため処理しきれず詰まりが発生し、オーバーフローを引き起こした。したがって、この水準は比較例５とした。上記水準以外の条件では比較例１に対して粗大粒排出口からの正常粒の排出量は大幅に減少することができた。結果を表４に示す。 [Example 5, Comparative Example 5]
Compared to Example 1, the width of the powder channel opening was changed to three levels of 1.6% (10 mm), 7.3% (45 mm), and 11.4% (70 mm) with respect to the diameter of the sieve frame. Except for the above, selection was performed in the same manner as in Example 1 under the same conditions as in Example 1. As a result, when the width of the granular material flow passage opening was 1.6% of the diameter of the sieve frame, the width of the granular flow passage opening was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set as Comparative Example 5. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 4.
Figure JPOXMLDOC01-appb-T000004
Figure JPOXMLDOC01-appb-T000004
［実施例６、比較例６］
　実施例１に対して、整流板の設置角度を２２°から２８．５°、長さを円筒型振動篩装置の篩枠の直径に対し９０．２％（５５５ｍｍ）から８５．４％（５２５ｍｍ）、篩枠中央部のパンチ孔無し平板部の外周と整流板との距離は篩枠の直径に対し６．５％（４０ｍｍ）から１１．４％（７０ｍｍ）とし、流路口の幅を篩の直径に対し１．６％（１０ｍｍ）、３．３％（２０ｍｍ）、７．３％（４５ｍｍ）の３水準にて実施例１と同様な方法で選別を行った。結果、粉粒体流路口の幅が篩枠の直径に対し１．６％の水準では、粉粒体流路口の幅が狭すぎたため処理しきれず詰まりが発生し、オーバーフローを引き起こした。したがって、この水準は比較例６とした。上記水準以外の条件では比較例１に対して粗大粒排出口からの正常粒の排出量は大幅に減少することができた。結果を表５に示す。 [Example 6, Comparative Example 6]
Compared to Example 1, the installation angle of the current plate is 22 ° to 28.5 °, and the length is 90.2% (555 mm) to 85.4% (525 mm) with respect to the diameter of the sieve frame of the cylindrical vibration sieve device. ), The distance between the outer periphery of the flat plate portion without punch holes in the central portion of the sieve frame and the current plate is 6.5% (40 mm) to 11.4% (70 mm) with respect to the diameter of the sieve frame, and the width of the flow passage opening is set to Sorting was performed in the same manner as in Example 1 at three levels of 1.6% (10 mm), 3.3% (20 mm), and 7.3% (45 mm). As a result, when the width of the granular material flow passage opening was 1.6% of the diameter of the sieve frame, the width of the granular flow passage opening was too narrow, so that the processing could not be completed and clogging occurred, causing overflow. Therefore, this level was set as Comparative Example 6. Under conditions other than the above levels, the amount of normal grains discharged from the coarse grain outlet was significantly reduced compared to Comparative Example 1. The results are shown in Table 5.
Figure JPOXMLDOC01-appb-T000005
Figure JPOXMLDOC01-appb-T000005
　なお、上述した実施例では、本発明に係る円筒型篩装置を熱可塑性樹脂のコンパウンド製造における選別工程に用いる例について説明したが、本発明に係る円筒型篩装置によって選別を行う処理対象物としては熱可塑性樹脂のコンパウンド品に限るものではなく、その他あらゆる分野の対象物の選別に適用することが可能である。 In the above-described embodiment, the example in which the cylindrical sieving apparatus according to the present invention is used for the selection process in the compound production of the thermoplastic resin has been described. However, as the processing object to be selected by the cylindrical sieving apparatus according to the present invention. Is not limited to a thermoplastic resin compound, and can be applied to sorting objects in all other fields.
　本発明に係る円筒型篩装置およびそれを用いた粉粒体の選別方法は、粗大粒排出口への正常粒の排出量の低減が求められるあらゆる粉粒体の選別に適用でき、装置全体としての正常粒の採取収率の大幅な向上をはかることができる。 The cylindrical sieving apparatus according to the present invention and the method of selecting a granular material using the cylindrical sieving apparatus can be applied to the selection of any granular material that is required to reduce the amount of normal particles discharged to the coarse particle outlet, and as a whole device The yield of normal grains can be greatly improved.
１　円筒型篩装置
２　粉粒体投入口
３　原料粉粒体
４　篩枠
５　加振手段
６　多孔板 (パンチングメタル)
７　上部選別室
８　粗大粒排出口
９　粗大粒が除去された後の粉粒体
１０　中部選別室
１１　多孔板 (パンチングメタル)
１２　正常粒排出口
１３　紛体
１４　下部室
１５　紛体排出口
１６　従来技術の整流板
２１　篩枠
２２　上部選別室
２３　多孔板
２４　孔
２５　平板部
２６　粗大粒排出口
２７　接続部
２８　整流板
２９　円形の篩枠の中心を通る直径
３０　粉粒体流路口
３１　整流板長さ調整機構
３２　延長部
３３　接続部
Ａ　粗大粒排出口を含む領域
Ｂ　円形の篩枠の中心を含む領域
Ｃ　円形の篩枠の中心
Ｌ　平板部の外周と整流板との距離
Ｗ　粉粒体流路口の幅 DESCRIPTION OF SYMBOLS 1 Cylindrical sieve apparatus 2 Granule inlet 3 Raw material granular material 4 Sieve frame 5 Excitation means 6 Perforated plate (punching metal)
7 Upper sorting chamber 8 Coarse grain outlet 9 Powder after the coarse grain is removed 10 Middle sorting chamber 11 Perforated plate (punching metal)
12 Normal Grain Discharge Port 13 Powder 14 Lower Chamber 15 Powder Discharge Port 16 Prior Art Rectification Plate 21 Sieve Frame 22 Upper Sorting Chamber 23 Perforated Plate 24 Hole 25 Flat Plate Portion 26 Coarse Grain Discharge Port 27 Connection Portion 28 Rectification Plate 29 Circular Sieve Diameter 30 passing through the center of the frame 31 Granule flow passage port 31 Rectifier plate length adjustment mechanism 32 Extension portion 33 Connection portion A Region including the coarse particle discharge port Region B including the center of the circular sieve frame Center of the circular sieve frame L Distance between the outer periphery of the flat plate part and the current plate W Width of the granular material channel

Claims (10)

  1. 　上部に、平面形状が円形の篩枠内に該篩枠内の中央部に投入された原料粉粒体を粗大粒とそれ以外の粉粒体とに選別可能な振動多孔板が設けられているとともに、前記篩枠に前記多孔板上で選別された粗大粒を排出する粗大粒排出口が設けられた上部選別室を有する円筒型篩装置において、前記上部選別室内に、一方の端部が前記篩枠の前記粗大粒排出口の篩枠周方向一端側の位置に接続され、円形の篩枠の半径よりも長く延びる整流板を設け、該整流板を、円形の篩枠の中心を通る方向に対し前記粗大粒排出口を含む領域側に傾いて延びるように配置するとともに、前記上部選別室内の前記整流板の他方の端部の延長線上に、前記整流板により区画された前記上部選別室内の円形の篩枠の中心を含む領域から前記粗大粒排出口を含む領域へと前記多孔板上の粉粒体が移動可能な粉粒体流路口を設け、該粉粒体流路口の幅を、円形の篩枠の直径の３％以上に設定したことを特徴とする円筒型篩装置。 In the upper part, a vibrating perforated plate is provided in a sieve frame having a circular planar shape, which can sort the raw material granular material charged into the central part of the sieve frame into coarse particles and other granular materials. And a cylindrical sieve device having an upper sorting chamber provided with a coarse grain outlet for discharging coarse grains sorted on the perforated plate to the sieve frame, wherein one end of the upper sorting chamber has the end A rectifying plate connected to a position on one end side in the circumferential direction of the sieving frame of the coarse grain outlet of the sieving frame and extending longer than the radius of the circular sieving frame is provided, and the rectifying plate passes through the center of the circular sieving frame. The upper sorting chamber is disposed so as to be inclined and extend toward the region including the coarse grain outlet, and is partitioned by the rectifying plate on the extension line of the other end of the rectifying plate in the upper sorting chamber. The area including the coarse grain outlet from the area including the center of the circular sieve frame And a granular material flow passage port through which the granular material on the perforated plate is movable, and the width of the granular material flow passage port is set to 3% or more of the diameter of the circular sieve frame. Mold sieve device.
  2. 　前記粗大粒排出口が、前記篩枠の周方向に１箇所だけ設けられている、請求項１に記載の円筒型篩装置。 The cylindrical sieving apparatus according to claim 1, wherein the coarse grain outlet is provided only at one place in a circumferential direction of the sieving frame.
  3. 　前記整流板の、前記篩枠への接続位置から前記粉粒体流路口の一端までの長さが、円形の篩枠の直径の７０％以上に設定されている、請求項１または２に記載の円筒型篩装置。 The length from the connection position to the said sieve frame of the said baffle plate to the end of the said granular material flow-path opening is set to 70% or more of the diameter of a circular sieve frame. Cylindrical sieve device.
  4. 　前記整流板が、前記篩枠への接続位置と円形の篩枠の中心とを通る篩枠の直径方向に対し、５～２８度の角度範囲内に配置されている、請求項１～３のいずれかに記載の円筒型篩装置。 The rectifying plate is disposed within an angle range of 5 to 28 degrees with respect to the diameter direction of the sieve frame passing through the connection position to the sieve frame and the center of the circular sieve frame. The cylindrical sieve device according to any one of the above.
  5. 　前記篩枠内の中央部に、前記多孔板とは異なる孔の無い平板部が設けられている、請求項１～４のいずれかに記載の円筒型篩装置。 The cylindrical sieving device according to any one of claims 1 to 4, wherein a flat plate portion having no holes different from the perforated plate is provided at a central portion in the sieving frame.
  6. 　前記整流板の前記粉粒体流路口の一端側部分に、整流板の長さを調整可能な整流板長さ調整機構が設けられている、請求項１～５のいずれかに記載の円筒型篩装置。 The cylindrical shape according to any one of claims 1 to 5, wherein a rectifying plate length adjusting mechanism capable of adjusting a length of the rectifying plate is provided at one end side portion of the powder particle passage opening of the rectifying plate. Sieve device.
  7. 　前記整流板長さ調整機構が前記粉粒体流路口の幅調整機構を兼ねている、請求項６に記載の円筒型篩装置。 The cylindrical sieving apparatus according to claim 6, wherein the current plate length adjusting mechanism also serves as a width adjusting mechanism of the granular material channel opening.
  8. 　前記上部選別室の下部に、該上部選別室内で選別された粗大粒が除去された後の粉粒体を取り出し可能な粉粒体取得室、または、前記上部選別室内で選別された粗大粒が除去された後の粉粒体をさらに振動多孔板により目標範囲内のサイズの正常粒とそれ未満のサイズの紛体とに選別可能な中部選別室を有する、請求項１～８のいずれかに記載の円筒型篩装置。 In the lower part of the upper sorting chamber, there is a granule acquisition chamber capable of taking out the powder after the coarse particles sorted in the upper sorting chamber are removed, or the coarse particles sorted in the upper sorting chamber. 9. The apparatus according to any one of claims 1 to 8, further comprising a middle sorting chamber capable of sorting the removed granular material into normal particles having a size within a target range and powder having a size smaller than that by a vibrating perforated plate. Cylindrical sieve device.
  9. 　請求項１～８のいずれかに記載の円筒型篩装置を用いて粉粒体を選別する粉粒体の選別方法。 A method for selecting a granular material, wherein the granular material is selected using the cylindrical sieving device according to any one of claims 1 to 8.
  10. 　前記粉粒体が所定長に切断された樹脂ペレットである、請求項９に記載の粉粒体の選別方法。 The method for selecting a granular material according to claim 9, wherein the granular material is a resin pellet cut into a predetermined length.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN108435539A (en) * 2018-03-19 2018-08-24 王华银 A kind of vibrating screen
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CN112742518A (en) * 2020-12-17 2021-05-04 澧县绿能生物质科技有限公司 Sodium sulfite preparation calcination is with filter residue recovery processing device
CN113210254A (en) * 2021-05-19 2021-08-06 山西双良鼎新水泥有限公司 Vibration screening equipment for cement processing and screening method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07566U (en) * 1993-05-31 1995-01-06 エヌオーケー株式会社 Classifier
JP2000135474A (en) * 1998-08-24 2000-05-16 Sekisui Plant System Kk Vibrating screen device
JP2005305386A (en) * 2004-04-26 2005-11-04 Mitsubishi Rayon Co Ltd Method for sieving powder
JP2012217899A (en) * 2011-04-06 2012-11-12 Mitsubishi Rayon Co Ltd Vibrating sieving machine
JP2013252493A (en) * 2012-06-07 2013-12-19 Ricoh Co Ltd Oscillating sieve apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3013053B2 (en) * 1991-06-04 2000-02-28 澁谷工業株式会社 Blast equipment
JPH1147692A (en) * 1997-07-30 1999-02-23 Kowa Kogyosho:Kk Vibrating separator
GB2395923A (en) * 2002-12-02 2004-06-09 Russel Finex Sieving apparatus
BE1019303A5 (en) * 2010-06-18 2012-05-08 Smo Bvba DEVICE AND METHOD FOR SIZING BULK GOODS SIZE.
CN203556543U (en) * 2013-09-27 2014-04-23 江苏华亘泰来生物科技有限公司 Improved rotary vibration sieve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07566U (en) * 1993-05-31 1995-01-06 エヌオーケー株式会社 Classifier
JP2000135474A (en) * 1998-08-24 2000-05-16 Sekisui Plant System Kk Vibrating screen device
JP2005305386A (en) * 2004-04-26 2005-11-04 Mitsubishi Rayon Co Ltd Method for sieving powder
JP2012217899A (en) * 2011-04-06 2012-11-12 Mitsubishi Rayon Co Ltd Vibrating sieving machine
JP2013252493A (en) * 2012-06-07 2013-12-19 Ricoh Co Ltd Oscillating sieve apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106076853A (en) * 2016-08-01 2016-11-09 王小琴 Screw glutinous material pickout apparatus
CN108435539A (en) * 2018-03-19 2018-08-24 王华银 A kind of vibrating screen
CN108435539B (en) * 2018-03-19 2020-12-25 安徽瑞邦生物科技有限公司 Vibrating screen
CN109865586A (en) * 2019-03-16 2019-06-11 方文星 A kind of chemical material method for efficiently separating
CN109865586B (en) * 2019-03-16 2020-11-20 江苏科鼐生物制品有限公司 Efficient chemical material sorting method
WO2021010676A1 (en) * 2019-07-16 2021-01-21 ㈜한국생명과학연구소 Capsule manufacturing apparatus for manufacturing various capsules in circulating fluid
KR20210008998A (en) * 2019-07-16 2021-01-26 (주)한국생명과학연구소 A capsule manufacturing apparatus for producing various capsules by circulating fluid
KR102222212B1 (en) * 2019-07-16 2021-03-03 주식회사 한국생명과학연구소 A capsule manufacturing apparatus for producing various capsules by circulating fluid
CN112742518A (en) * 2020-12-17 2021-05-04 澧县绿能生物质科技有限公司 Sodium sulfite preparation calcination is with filter residue recovery processing device
CN112742518B (en) * 2020-12-17 2022-08-09 湖南万家工贸实业有限公司 Sodium sulfite preparation calcination is with filter residue recovery processing device
CN113210254A (en) * 2021-05-19 2021-08-06 山西双良鼎新水泥有限公司 Vibration screening equipment for cement processing and screening method thereof

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