JP2015217381A - Granular matter sorter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a granular matter sorter which has an enhanced drying performance compared to a conventional one.SOLUTION: The granular matter sorter includes: a sorter body which has a feed part on one end side and a discharge part on the other side, and in which a sieve is disposed; a vibration generator for vibrating the sorter body; and an air blower which is connected to the sorter body and generates an air flow passing through the sieve. A granular matter which is fed from the feed part onto the sieve in the sorter body, is transported towards the discharge part by vibration of the sorter body generated by the vibration generator, and the granular matter is dried by the air flow passing through the sieve. A partition plate having a predetermined height is provided on a top face of the sieve, and a certain amount of the granular matter, which is transported towards the discharge part, is held on the feed part side of the partition plate.

Description

  The present invention relates to a granular material sorter, and more particularly to a granular material sorter suitable for use in sorting hot plastic pellets or biomass pellets immediately after granulation.

  2. Description of the Related Art Conventionally, a sorting device that cools and drys high-temperature resin pellets granulated by a granulator and simultaneously sorts the resin pellets according to size is known (see Patent Document 1).

FIG. 5 shows a schematic sectional side view of the sorting apparatus described in Patent Document 1. As shown in FIG. FIG. 6 is a cross-sectional view taken along the line 2A-2A in FIG.
The sorting device described in Patent Literature 1 includes a box 17 that is elastically supported on the base 2 by four springs 5 and 6 in the front, rear, left, and right.
Inside the box 17, a coarse sieve 31 and a fine sieve 32 are arranged in two upper and lower stages, and on the upper side of the base end portion of the box 17, an inlet 9 a for introducing granular materials is provided. ing.

Further, the box 17 is provided with a first shot 26 in the middle of the lower side of the fine sieve 32 and a second shot 27 at the tip of the sieve 32, and a second shot 27 is provided at the tip of the coarse sieve 31. Three shots 28 are provided.
Further, the air outlet 14 of the blower 10 is connected to the space between the bottom plate 8 of the box 17 and the fine sieve 32, and the bottom surface of the bottom plate 8 of the box 17 is connected to the front end side of the box 17. A vibration exciter 7 is provided for applying vibrations obliquely upward.

  In the sorting apparatus, the high temperature resin pellets granulated by the granulator are charged into the box 17 through the charging port 9a. Then, a lump that is larger than a predetermined size is transferred toward the tip side on the coarse sieve 31 that is vibrated by the vibrator 7, and is transferred from the third shout 28 to the outside of the box 17. To be discharged. Further, among the resin pellets dropped from the coarse sieve 31, powdery powders having a predetermined size or less fall from the fine sieve 32 onto the bottom plate 25, and from the first shout 26 to the box 17. It is discharged to the side. Further, the resin pellets of a predetermined size are transferred toward the tip side on the fine sieve 32 that is vibrated by the vibrator 7 and discharged from the second shot 27 to the side of the box 17. The

  In the sorting apparatus, the resin pellets that are transferred toward the front end side on the respective sieves 31 and 32 are blown by the blower 10 so that the upper side of the coarse sieve 31 from the lower side of the fine sieve 32. It is cooled and dried by air passing through.

  By the way, if the said sorter | selector increases the ventilation volume of the said air blower 10, the cooling-drying capability of a granular material will improve.

  However, in the above-described sorting apparatus, there is a problem that the operating cost increases because the power consumption increases when the amount of air blown from the blower 10 is increased.

Japanese Patent No. 3608074

  Therefore, an object of the present invention is to provide a granular material sorter having improved drying performance as compared with the conventional art.

In order to achieve the above object, the present invention provides:
A sorter body having a supply part on one end side and a discharge part on the other end side, and having a sieve disposed therein, a vibration device for vibrating the sorter body, and being connected to the sorter body A blower that generates an air flow passing through the sieve, and the granular material that is supplied from the supply unit to the sieve inside the sorter body is added to the sorter body by the vibration device. In the granular material sorter that conveys toward the discharge part by shaking and dries the granular material by an air flow passing through the sieve,
A partition plate having a predetermined height is disposed on the upper surface of the sieve, and a certain amount of granular material to be conveyed toward the discharge unit is held on the supply unit side of the partition plate.

  The present invention is an exhaust port to which the blower is connected at the upper part of the sorter body, and a slit-like intake port is formed at both sides of the granular material in the lower part of the sorter body, It is preferable to generate an air flow passing through the sieve from the lower side to the upper side by the suction action of the blower.

  In the present invention, it is preferable that a plurality of the partition plates are arranged at a predetermined interval in the conveyance direction of the granular material.

  In the present invention, the partition member having an opening in the center in the height direction is detachable from above the sorter body, so that the partition member is placed on the upper surface of the sieve instead of the partition plate having the predetermined height. It is preferable to arrange.

In the granular material sorting machine according to the present invention, a partition plate having a predetermined height is disposed on the upper surface of the sieve so that the granular material conveyed on the sieve toward the discharge portion is on the supply portion side of the partition plate. Therefore, the granular material can be kept in the sorter body for a long time.
Moreover, since the granular material sorter of the present invention vibrates the sorter body by the vibration device, the granular material held on the supply part side of the partition plate is vibrated, and a gap is formed between the granular materials. Can be formed.
Therefore, since the granular material sorter of the present invention can distribute the air flow uniformly over the surface of the granular material for a long time, the drying performance is improved as compared with the conventional sorting device.

  In the granular material sorter according to the present invention, an exhaust port to which the blower is connected is formed at the upper part of the sorter body, and slit-like intake ports are formed at both sides of the granular material in the lower part of the sorter body in the conveyance direction If the air flow passing through the sieve from the lower side to the upper side is generated by the suction action of the blower, including the particulate matter held on the supply part side of the partition plate, Since the air flow can be effectively distributed to all the granular materials, the drying performance is further improved.

  In the granular material sorter according to the present invention, if a plurality of the partition plates are arranged at predetermined intervals in the conveying direction of the granular material, the granular material is placed in the sorting machine main body for a longer time. Therefore, the drying performance is further improved.

  The granular material sorter of the present invention is configured such that a partition member having an opening in the center in the height direction is detachable from above the sorter main body, so that the upper surface of the sieve is replaced with the partition plate having the predetermined height. If the partition member is disposed, the particulate matter remaining inside the sorter body can be discharged by pulling out the partition member from above the sorter body.

The schematic sectional side view of the granular material sorter in embodiment of this invention. AA sectional drawing of FIG. The schematic sectional side view of the granular material sorter | selector in other embodiment of this invention. BB sectional drawing of FIG. The schematic sectional side view of the selection apparatus described in patent document 1. FIG. 2A-2A sectional drawing of FIG.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic sectional side view of a granular material sorter according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG.
The granular material sorter according to the embodiment of the present invention includes a sorter body 101 supported on a base frame 104 via an air spring 105, a vibration motor 103 that vibrates the sorter body 101, and the sorter. A blower 120 connected to the main body 101 is provided.

  In the upper part of the one end side of the sorter main body 101, a supply port 111 for a granular material to be sorted is provided. A charging hopper 113 is connected to the supply port 111 via a bellows duct 112, and a rotary valve 114 is disposed between the charging hopper 113 and the bellows duct 112.

  A sieve 102 is disposed inside the sorter main body 101, and the other end side of the sorter main body 101 is a non-defective granule having a size larger than a predetermined size conveyed on the sieve 102. There are provided a first discharge port 107 for discharging, and a second discharge port 108 for discharging the granular material dropped from the sieve 2 as a defective product.

  In addition, two partition plates 106 having a predetermined height are disposed on the upper surface of the sieve 102 at a predetermined interval in a direction intersecting the conveying direction of the granular material. Each of the partition plates 106 and 106 holds a certain amount of granular material conveyed on the sieve 102 toward the discharge unit on the front side of the partition plates 106 and 106, that is, on the supply port 111 side.

An exhaust port 116 is provided in the upper part of the sorter main body 101 and between the partition plates 106, 106, and the exhaust port 116 is provided with a bellows duct 117 and a vent pipe 119 having an air volume adjusting damper 118. The blower 120 is connected.
In addition, slit-like air inlets 121 and 121 are formed in the lower part of the sorter main body 101 and on both sides of the granular material in the conveying direction over substantially the entire length in the conveying direction.

Here, the sieve 102 may be an appropriate one such as a wire mesh or a perforated plate that screens granular materials according to their dimensions.
Further, a plate spring or the like can be used in place of the air spring 105 as means for supporting the sorter body 101 on the base frame 104.
Further, a crank mechanism or the like can be used instead of the vibration motor 103 as means for vibrating the sorter main body 101.

In the granular material sorting machine according to the present embodiment, the granular material charged into the charging hopper 113 is supplied into the sorting machine main body 101 from the supply port 111 through the bellows duct 112 by the action of the rotary valve 114. Is done.
Then, the granular material supplied into the sorter main body 101 is conveyed toward the first discharge port 107 on the sieve 102 by the vibration of the sorter main body 101 by the vibration motor 103. Further, the granular material having a size smaller than the mesh of the sieve 102 falls from the sieve 102 and is conveyed toward the second discharge port 108 on the bottom plate of the sorter main body 101.

On the other hand, in the granular material sorter according to the present embodiment, the air flowing into the sorter main body 101 from the slit-like inlets 121 and 121 by the suction action of the blower 120 is substantially over the entire screen 102. The sieve 102 passes from the lower side to the upper side and flows out from the exhaust port 116 toward the blower 120.
And the granular material conveyed on the said sieve 102 toward the said 1st discharge port 107 is exposed to the airflow which passes through this said sieve 102 from the lower side to the upper side in the substantially whole surface of the said sieve 102. FIG.

In the granular material sorter according to the present embodiment, two partition plates 106 and 106 are arranged on the upper surface of the sieve 102 in a direction intersecting the conveying direction of the granular material, so that the upper part of the sieve 102 is placed on the sieve 102. Since a certain amount of the granular material conveyed toward one discharge port 107 can be held on the front side of each of the partition plates 106, 106, that is, on the supply port 111 side, the granular material is kept in the sorter for a long time. It can be stopped in the main body 101.
Further, since the granular material sorter in the present embodiment vibrates the sorter main body 101 by the vibration motor 103, the granular material held on the supply port 111 side of the partition plates 106 and 106 is vibrated. Thus, a gap can be formed between the granular materials.
Therefore, since the granular material sorter in this Embodiment can distribute the said air flow uniformly over the surface of the said granular material over a long time, drying performance improves compared with the conventional sorter.

In the granular material sorter according to the present embodiment, among the two partition plates 106 and 106, the granular material overflowing from the upper end of the partition plate 106 located rearward in the transport direction to the first discharge port 107 side. Is conveyed toward the first outlet 107 while being exposed to an air flow passing through the sieve 102 from the lower side to the upper side in a thin layer on the sieve 102.
Therefore, the particulate matter sorter in the present embodiment can effectively dry the particulate matter overflowing from the upper end of the partition plate 106 located rearward in the transport direction to the first discharge port 107 side.

  In addition, since the particulate matter sorter in the present embodiment holds a certain amount of particulate matter on the supply port 111 side of each partition plate 106, 106, there is a possibility that the sorting ability by the sieve 102 may be reduced. The granular material overflowing from the upper end of the partition plate 106 located rearward in the transport direction toward the first discharge port 107 is transported toward the first discharge port 107 in a thin layer on the sieve 102. Therefore, there is no problem in the sorting ability as a sorter.

In the granular material sorter according to the present embodiment, two partition plates 106 are disposed at a predetermined interval, but at least one partition plate 106 may be disposed.
In the granular material sorter according to the present embodiment, if a plurality of the partition plates 106 are arranged with a predetermined interval, the particulate matter is disposed for a longer time by the number of the partition plates. Since it can be stopped in the main body 101, the drying performance is further improved.

In the granular material sorter in the present embodiment, the exhaust port 116 is provided between the two partition plates 106, but the exhaust port 116 is not necessarily provided between the two partition plates 106. There is no need.
In the granular material sorting machine according to the present embodiment, if the exhaust port 116 is provided on the supply port 111 side of any of the partition plates 106 above the sorter body 101, the sieve 102 is provided. From the lower side to the upper side of the partition plate 106 and the first discharge port 107 from the upper end of the partition plate 106 located rearward in the transport direction. It is possible to effectively spread the granular material after overflowing to the side.

  In the granular material sorter according to the present embodiment, room temperature air, cooling air, or heated air can be used for the air flow passing through the sieve 102 from the lower side to the upper side. If the granular material is dried at room temperature or cooling air, the granular material can be cooled and dried. On the other hand, if the granular material is dried with heated air, the granular material can be heated and dried.

  In the granular material sorter according to the present embodiment, the air flow passing through the sieve 102 is generated by the suction action of the blower 120, but may be generated by the blower action of the blower.

FIG. 3 is a schematic sectional side view of a granular material sorter according to another embodiment of the present invention, and FIG. 4 is a sectional view taken along line BB in FIG.
The granular material sorter in the present embodiment uses the partition member 126 having an opening 125 at the center in the height direction in place of the partition plate 106 having the predetermined height, so that the granular material shown in FIGS. 1 and 2 is used. Different from the sorter.

  The partition member 126 is detachable from above the sorter main body 101, and is disposed on the upper surface of the sieve 102 by being inserted from above the sorter main body 101.

In the partition member 126, a certain amount of particulate matter conveyed on the sieve 102 is held on the supply port 111 side of the partition member 126 by the height portion up to the opening 125.
Further, in the partition member 126, particulate matter overflows from the opening 125 to the first discharge port 107 side.

  The particulate matter sorter can discharge the particulate matter remaining inside the sorter body 101 by pulling out the partition member 126 from above the sorter body 101.

  In addition, the granular material sorter in this Embodiment improves the drying ability of a granular material, if the ventilation volume of a fan is increased similarly to the conventional sorter.

  The present invention is not limited to the above-described embodiment, and it goes without saying that the configuration can be appropriately changed without departing from the scope of the invention.

  The granular material sorter of the present invention is excellent in practicality because the drying performance of the granular material is improved as compared with the conventional one.

101 Sorter Main Body 102 Sieve 103 Vibration Motor 104 Base Mount 105 Air Spring or Antivibration Rubber 106 Partition Plate 107 First Discharge Port 108 Second Discharge Port 111 Supply Port 112 Bellows Duct 113 Hopper 114 Rotary Valve 116 Exhaust Port 117 Bellows Duct 118 Airflow adjustment damper 119 Vent pipe 120 Blower 121 Inlet 125 Opening 126 Partition member

Claims (4)

A sorter body having a supply part on one end side and a discharge part on the other end side, and having a sieve disposed therein, a vibration device for vibrating the sorter body, and being connected to the sorter body A blower that generates an air flow passing through the sieve, and the granular material that is supplied from the supply unit to the sieve inside the sorter body is added to the sorter body by the vibration device. In the granular material sorter that conveys toward the discharge part by shaking and dries the granular material by an air flow passing through the sieve,
A granular material sorter characterized in that a partition plate having a predetermined height is disposed on the upper surface of the sieve, and a certain amount of granular material conveyed toward the discharge portion is held on the supply portion side of the partition plate.   The upper part of the sorter body is connected to an exhaust port to which the blower is connected, and the lower part of the sorter body is formed with slit-like intake ports on both sides in the conveyance direction of the granular material. The granular material sorter according to claim 1, wherein an air flow passing through the sieve from the lower side to the upper side is generated by a suction action.   The granular material sorter according to claim 1 or 2, wherein a plurality of the partition plates are arranged at a predetermined interval in the conveying direction of the granular material.   A partition member having an opening at a central portion in the height direction is detachable from above the sorter body, so that the partition member is disposed on the upper surface of the sieve instead of the partition plate having the predetermined height. Item 4. A granular material sorter according to any one of Items 1 to 3.

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