JP2020014986A - Cylindrical rotary sorting device - Google Patents

Abstract

To provide a cylindrical rotary sorting device where non-ferrous metallic foreign matter contained in unburned gravel after separating metallic foreign matter from the bottom ash of a boiler for waste combustion is sorted and separated to the unburned gravel and the non-ferrous metallic foreign matter.SOLUTION: In a cylindrical rotary sorting device,: hooking nails 21a, 21b are planted on the inner peripheral surface of a rotating drum 11; a non-ferrous metal discharge conveyor 40 is disposed so as to extend to the inside and outside of the drum 11; non-ferrous metallic foreign matter in unburned gravel is scraped up by the hooking nails 21a, 21b while the unburned gravel charged in the drum 11 is agitated with the hooking nails 21a, 21b by the rotation of the drum 11; the non-ferrous metallic foreign matter carried to the upper part of the drum 11 by the rotation of the hooking nails 21a, 21b caused by the rotation of the drum 11 is fallen on the non-ferrous metal discharge conveyor 40 and discharged outside; and the unburned gravel is discharged from an unburned gravel carry-out chute 4 at the outlet side of the drum 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a rotary sorter that sorts a separated product from an object to be processed put into a rotating drum.

  In order to reduce the amount of fossil fuels that cause global warming, for example, biomass fuel consisting of wood chips such as building forms and remnants, waste plastics, waste tires, etc., as waste-derived fuels, Burning in boiler. When these biomass fuels and waste-derived fuels are charged into the combustion furnace, metallic foreign substances and pebbles mixed therein are also supplied into the furnace, and are discharged at the bottom of the furnace as bottom ash. Metallic foreign matter contained in the bottom ash can be sorted and collected by a magnetic separator and then sold. After the metallic foreign matter is separated, unburned gravel remains, but the unburned gravel contains non-ferrous metallic foreign matters such as copper wire, stainless steel, and aluminum that cannot be collected by the magnetic separator. These non-ferrous metal-based foreign substances exist in the form of wire rods, scraps of plate materials, and the like. If only unburned gravel is used, it can be used as a substitute for cut crushed stone, which is a secondary material of recycled aggregate.Also, only non-ferrous metal-based foreign matter can be sold. Unburned gravel had to be treated as industrial waste.

  Under the circumstances described above, reducing the amount of this type of industrial waste to be treated leads to promoting environmental conservation. Therefore, it is desired to separate non-ferrous metal-based foreign matter from the unburned gravel.

  2. Description of the Related Art A rotary sorter is an apparatus for separating and sorting foreign matter mixed in an object to be processed. For example, Patent Literature 1 proposes a sorting apparatus that efficiently sorts out an object to be processed mixed with foreign matter. In this sorting apparatus, a sieve surface is provided on the inner surface of a rotating drum, and the object to be processed is accommodated in the sieve surface, and is sorted through the sieve surface by the rotation of the drum, and the object to be processed is scraped up. Projections are provided.

JP 2018-12047 A

  Unburned gravel was sorted using a rotary sorter having a conventional structure without the protrusion. At this time, when sorting is performed by the hole diameter of the sieve surface (screen), fine gravel (5 mm or less) and large gravel (25 mm or more) are sorted. However, the gravel and the non-ferrous metal-based foreign matter of the intermediate size were mixed as they were and were not sorted out. The screen was replaced and the hole diameter was changed in various ways. However, it was difficult to reliably separate the non-ferrous metal-based foreign matter because the size of the non-ferrous metal-based foreign matter was various.

  In view of the above, the present invention provides a rotary sorter that provides an object to be treated containing non-ferrous metal-based foreign matter such as unburned gravel contained in bottom ash, so that the non-ferrous metal-based foreign matter can be separated from the object to be treated. The purpose is to provide.

  As a technical means for achieving the above object, a rotary sorter according to the present invention comprises a rotating cylindrical drum into which an object to be processed is charged, and a separated product discharge extending from the inside to the outside of the drum. And a plurality of hook claws disposed on the inner peripheral surface of the drum and protruding into the drum.

  An object to be processed introduced into the drum from an inlet is retained at a lower portion of the drum. The foreign matter in the object to be processed is hooked by the hook hook by the rotation of the drum, and is lifted up and carried upward by the rotation of the drum. When it rises to an appropriate position, it is released from the hook and hook, falls into the separated product carrying means, and carried out of the drum. The object from which the foreign matter has been separated stays at the lower part of the drum, moves gradually to the outlet side by the rotation of the drum, and is discharged from the outlet.

In the above-described invention, it is preferable that the direction of the rotation axis of the drum be a horizontal direction.
It is also preferable that the direction of the rotation axis of the drum is inclined at an arbitrary angle with respect to the horizontal direction.

  The angle of the rotation axis of the drum can be appropriately selected according to the properties of the workpiece. For example, if the rotating shaft is inclined so that the outlet side of the drum is at a lower position, the workpiece remaining at the lower part of the drum moves smoothly to the outlet side, and the separated workpiece smoothly moves away from the separated workpiece. Can be sorted out.

  Further, in the above-described invention, it is preferable that a transport direction of the separated material discharging means is a horizontal direction.

  When the rotation axis of the drum is inclined with respect to the horizontal direction, the conveyance direction of the separated material discharging means can be inclined in a direction parallel to the rotation axis, and the conveyance direction can also be tilted. It is preferable that the transport direction is horizontal regardless of the direction of the rotation axis of the drum. The transport direction can be inclined according to the properties of the separated material.

Further, in the above invention, the hook hook may be implanted on the inner peripheral surface of the drum.
Further, the hook hook is planted on an arc-shaped planting plate concentric with the rotation center of the drum, an opening is formed in a part of the peripheral wall of the drum, and the planting plate is placed in the opening. On the other hand, a structure in which the hook hook is protruded into the drum can be detachably attached from the outside of the drum.

  The hook hook may be implanted on the inner peripheral surface of the drum by welding or the like. On the other hand, if the planting plate on which the hook hooks are implanted is made detachable from the drum, cleaning is performed when the processing object or the separated material is clogged in the hook hooks. Etc. can be easily performed.

  Further, in the above invention, the length of the hook hook is made different, the tip of the hook hook is bent, and the hook hook hook is adjacent to the hook hook hook. It is preferable that the tips of the two hook hooks are joined.

  Further, in the above-described invention, it is preferable that the separated product carrying-out means is disposed above a rotation axis of the drum.

  There is a case where the object to be processed is hooked at the same time when the separated object in the object to be processed is hooked by the hook hook, and it is preferable that the object to be processed is detached from the hook hook before the separated object falls. For this reason, the separated material discharging means is disposed above the rotation axis of the drum, and the number of occasions in which the object not to be provided to the separated material discharging means is detached from the hook hook is increased.

  Further, in the above invention, the object to be processed is unburned gravel from which metal foreign matter has been removed from bottom ash of a biomass boiler, and the separated material is a non-ferrous metal-based foreign matter contained in the unburned gravel. Can be implemented.

  ADVANTAGE OF THE INVENTION According to the cylindrical rotary sorter which concerns on this invention, the isolation | separation substances, such as a foreign material, can be isolate | separated easily and excellently from a to-be-processed object.

  Further, by using the cylindrical rotary sorter according to the present invention for unburned gravel discharged from a biomass boiler, non-ferrous metal-based foreign substances in unburned gravel can be efficiently separated. Moreover, regardless of the diameter of the unburned gravel, that is, as described above, even if the unburned gravel has a diameter that cannot be separated by the screen, the non-ferrous metal-based foreign matter can be smoothly separated.

It is a side view which shows the outline of the sorting plant which separates a to-be-processed object using the cylindrical rotary sorter which concerns on one Embodiment of this invention. FIG. 2 is a front view of a cylindrical rotary sorting device in the sorting plant shown in FIG. 1. It is a figure explaining other embodiment of the cylindrical rotary sorter used for the sorting plant shown in FIG. 1, and has shown the cylindrical rotary sorter. FIG. 4 is a sectional view taken along line 1-1 in FIG. 3. It is a figure explaining the planting position of the hook nail in a planting board. It is a figure explaining the procedure of planting a hook hook. FIG. 7 is a diagram for explaining a procedure for implanting a hook hook, which is a procedure that continues from the state shown in FIG. 6. It is a figure explaining the procedure of planting a hook hook, and is a procedure following the state shown in FIG. The jig used when planting a hook hook is shown, (A) is a front view, (B) and (C) are the 2-2 arrow views and (3-3 arrow view) in (A), respectively. FIG. It is a perspective view which shows one Embodiment of a planting board and the hook hook which was planted in this planting board. FIG. 11 is a schematic view of a cross-sectional view taken along line 4-4 in FIG. 10.

  Hereinafter, a cylindrical rotary sorter according to the present invention will be specifically described based on the illustrated preferred embodiments.

  FIG. 1 schematically shows a sorting plant 1 provided with a cylindrical rotary sorting device 10 according to one embodiment of the present invention for separating an object to be treated. This sorting plant 1 uses a magnetic separator from a bottom ash generated by burning a biomass fuel made of wood chips such as building forms and residual materials, waste plastics and waste tires such as waste tires in a boiler, using a magnetic separator. The remaining unburned gravel from which the foreign matter has been sorted and collected is provided, and is suitable for separating non-ferrous metal-based foreign matter such as copper, stainless steel, and aluminum from the unburned gravel.

  FIG. 2 is a front view of the cylindrical rotary sorter 10, FIG. 3 is a plan view of the cylindrical rotary sorter 10, and FIG. 4 is a schematic cross-section taken along line 1-1 in FIG. In the figure, some are omitted. The cylindrical rotary sorter 10 is mainly composed of a rotating cylindrical drum 11. At both ends of the drum 11, annular support rings 11a and 11b are fitted. At a position below the end of the drum 11 and at a position where the outer peripheral surfaces of the support rings 11a and 11b face each other, a pair of support rollers 12a and 12b are provided on the upper surface of the gantry frame 13 as shown in FIG. , 14b so as to be rotatable. As shown in FIG. 1, each of the support rings 11a and 11b is placed and supported on each of the support rollers 12a and 12b.

  A drum-side sprocket 15a is fitted to the center of the drum 11 with respect to one of the support rings 11a and 11b. On the other hand, a drive motor 16 is provided on the gantry frame 13, and a chain 17 is wound around a drive sprocket 16 a fitted on an output shaft of the drive motor 16 and a drum-side sprocket 15 a. As a result, the rotation of the output shaft caused by the operation of the drive motor 16 is transmitted to the drum-side sprocket 15a via the chain 17, and the drum 11 is supported by the support rollers 12a and 12b. It rotates as a rotation axis, and its rotation speed can be adjusted arbitrarily. In this embodiment, the rotation axis is described as being in the horizontal direction, but the rotation axis may be inclined at an appropriate angle from the horizontal direction.

  As shown in FIG. 3, an implant plate 20 is detachably attached to the outer periphery of the drum 11. 3 and 4, an opening 11c is formed in the wall of the drum 11 to which the planting plate 20 is attached. Further, the implantation plate 20 is curved in an arc shape about the rotation axis of the drum 11, and the inner surface of the implantation plate 20 and the outer peripheral surface of the drum 11 are in close contact with the drum 11 being attached. As a shape.

  As shown in FIG. 4, a large number of hook hooks 21 a and 21 b protruding into the drum 11 are planted on the planting plate 20. These hook hooks 21a and 21b have different lengths and have different projection amounts from the planting board 20. That is, the hook hook 21a is made to protrude larger than the hook hook 21b. The tips of the hooks 21a and 21b are bent or curved from an appropriate position. More preferably, as shown in FIG. 10, the adjacent hook hooks 21a and 21a are connected to each other, and the hook hooks 21b and 21b are connected to each other by welding or the like at their distal ends. Let it.

  FIG. 5 is a diagram showing the placement positions of the hook claws 21 a and 21 b on the placement board 20. The placement position may be irregular, but as will be described later, it is necessary to smoothly perform the work of bending and bending the tips of the hooked hooks 21a and 21b. Because of the arrangement structure and the like that allow the foreign matter to be separated from the processed material to be efficiently hooked, the plant can be planted at a position having regularity.

  FIG. 5 shows an example of an implanting position in the case where the hooking hooks 21a and 21b are implanted at positions having regularity in the implanting plate 20 shown in FIG. The numbers shown on the left side of the planting area 21 of the planting board 20 indicate the row numbers from the near side. FIG. 10 schematically shows the arrangement of the hook claws 21a and 21b shown in FIG. Around the planting area 21 of the hook hooks 21a and 21b, there is provided a contact portion 22 which is superimposed on the periphery of the opening 11c.

The planting position illustrated in FIG. 5 will be described below.
In the first row, a plurality of pairs of long hook hooks 21a each having a distance Ld of 7 mm and a pair of the hooks and hooks 21a each having a distance Le of 14 mm are planted. It is. That is, the pitch Lp of each set by the hook hooks 21a is 21 mm. In the second row, which is 20 mm away from the first row, a plurality of pairs of short hooking claws 21b each having an interval Ld of 7 mm and one pair each having a distance Le of each set of 14 mm are planted. That is, the pitch Lp of each set of the hook hooks 21b is 21 mm. The first row and the second row are implanted with a 1/2 pitch shifted in the left-right direction in FIG. That is, 10.5 mm (Lp / 2) is shifted, and a pair of hook hooks 21b is arranged between the pair of hook hooks 21a. Note that the difference between the long and short lengths is the difference in the protruding length from the planting board 20, and the hooking hooks 21a and 21b are of the same standard. Further, in this embodiment, the projecting length of the long hook hook 21a is 22 mm, and the projecting length of the short hook hook 21b is 15 mm. It is bent or bent.

  A third row is arranged at a position 50 mm away from the second row, and a fourth row is arranged at a position 20 mm away from the third row. The first and second rows are arranged in the third and fourth rows. Similarly to the second row, a long hook hook 21a and a short hook hook 21b are planted. Further, a fifth row is arranged at a position 50 mm away from the fourth row, and the fifth row, the sixth row, the seventh row, and the eighth row are arranged in the same manner as the first row to the fourth row. The hook hooks 21a and 21b are implanted.

The ninth row is arranged at a position 50 mm away from the eighth row. The tenth and eleventh rows are arranged at positions 35 mm apart from the ninth row. In the ninth row to the eleventh row, the long hook hooks 21a are planted with a pitch Mp of 28 mm between the long hook hooks 21a, and the hook hooks arranged in the ninth row to the eleventh row are arranged. Reference numeral 21a is planted in FIG. 5 with a shift of 1/2 pitch (14 mm) in the left-right direction. That is, the ninth row and the eleventh row are planted at positions vertically overlapping in FIG. 5, and in the tenth row, the planting positions are arranged in the middle of the ninth row. I have. The twelfth row is arranged at a position 60 mm away from the eleventh row, and from the twelfth row to the eighteenth row, the hook hooks 21a are arranged in the same manner as the fifth row to the eleventh row. 21b is planted.
In addition, the dimensions of these arrangements and the intervals of the hook hooks 21a and 21b are appropriately selected according to the processing amount of the cylindrical rotary sorter 10 and the properties of the workpiece.

FIGS. 6 to 8 show the bending operation of the hook hooks 21a and 21b when the distance Ld between the pair is small (7 mm), such as the arrangement in the first to eighth rows or the twelfth to fifteenth rows. FIG. 9 is a diagram showing a jig 30 suitable for this bending work.
As shown in FIG. 9A, the jig 30 is formed by bending a steel strip along three other sides except for the lower base of the trapezoid. The long arm 30a formed by the long side of the side sandwiching the lower base of the trapezoid is used for processing the long hook and hook 21a, and the short arm 30b formed by the short side is formed by the short hook. This is for processing the nail 21b.
As shown in FIG. 9 (C), a pair of support holes 31, 31 having an interval Pb of 7 mm are formed at a position at a distance Pa from the tip of 16 mm at the tip of the long arm 30a. As shown in FIG. 9 (B), a pair of support holes 32, 32 having an interval Nb of 7 mm are formed at a position where the distance Na from the tip is 10 mm. Each of the support holes 31 and 32 has such a size that the hook hooks 21a and 21b are loosely inserted. The width W of the jig 30 is set to 30 mm as described later.

Hereinafter, a procedure for implanting the hook hooks 21a and 21b on the implant board 20 will be described. In addition, it is preferable to use a screw nail having a larger holding force as compared with a round nail or the like for the hook hooks 21a and 21b. In addition, the hook hooks 21a and 21b may be the same, and the protrusion amounts from the planting plate 20 may be different.
A pilot hole is formed at a position indicated by a small circle in FIG. 5 with a drill or the like. The hook hooks 21a and 21b are inserted into the prepared holes. At this time, adjustment is performed so that the protrusion amount is 22 mm at the position where the long hook hook 21a is formed, and is adjusted such that the protrusion amount is 15 mm at the position where the short hook hook 21b is formed.

In the prepared holes of the first row, the third row, the fifth row, the seventh row, the twelfth row, and the fourteenth row (these rows are hereinafter referred to as “long rows”), long hooking claws are provided. 21a is inserted. In these long rows, the interval Ld between the pair of adjacent pairs of prepared holes is 7 mm, and the pair Lp is 21 mm.
Then, as shown in FIG. 6, the tip of the hook 21a is loosely fitted into the support holes 31, 31 of the jig 30 described above. At this time, the pair of hook hooks 21a, 21a can be loosely fitted into the pair of support holes 31, 31 formed at the distal end of the long arm 30a. Also, as shown in FIG. 6, the posture of the jig 30 is set so that the tip of the long arm 30a points in the direction in which the hooks 21a, 21a are bent. The direction in which the hooks 21a and 21b are bent is such that the rotation direction of the drum 11 indicated by the arrow Q in FIG. 4 is the direction in which the tips of the hooks 21a and 21b are directed.
In this state, as shown in FIG. 7, when the jig 30 is rotated with the tip end of the long arm 30a as a fulcrum, the tip of the hook 21a into which the support hole 31 is loosely fitted is bent. You. Further, when the jig 30 is rotated so that the long arm 30a becomes nearly perpendicular to the planting plate 20, as shown in FIG. 8, the hook hook 21a cannot be bent any further. The jig 30 is removed by detaching the hook 21a from the support hole 31. As a result, the hook hooks 21a having the bent end portions are planted and arranged on the planting plate 20. In addition, since the pair of hook hooks 21a correspond to each of the support holes 31 of the jig 30, the pair of hook hooks 21a are simultaneously bent and formed.
At this time, in the long arm 30a of the jig 30, the distance Pa from the tip is set to 16 mm, so that the long hook hook 21a protruding by 22 mm can be largely bent and formed.

In addition, a short hook hook and nail are provided in the lower holes of the second row, the fourth row, the sixth row, the eighth row, the thirteenth row, and the fifteenth row (these rows are hereinafter referred to as “short rows”). 21b is inserted. In these short rows, as in the case of the long rows, the interval Ld between the pair of adjacent pilot holes is 7 mm, and the interval Lp between a pair of pairs is 21 mm.
As shown in FIG. 6, the support holes 32 formed in the short arm 30b of the jig 30 are loosely fitted to the tip of the short hook hook 21b. A pair of hook hooks 21b, 21b can be loosely fitted into the pair of support holes 32, 32. Also, as shown in FIG. 6, the posture of the jig 30 is set so that the tip of the short arm 30b is oriented in the direction in which the hook 21b is bent. Note that the bending direction of the short hook hook 21b is the same as the bending direction of the long hook hook 21a.
Then, as shown in FIG. 7, when the jig 30 is raised with the leading edge of the short arm 30b as a fulcrum as in the case of the long row, the hook hook 21b in which the support holes 32, 32 are loosely fitted. Is bent. Further, as shown in FIG. 8, when the short arm 30b is close to being perpendicular to the planting board 20, the hook hook 21b cannot be bent any further, and the hook hook 21b is inserted into the support hole 32. When the jig 30 is removed by being detached from the hook, a hook hook 21b having a bent end is provided. Moreover, since the pair of hook hooks 21b correspond to each of the support holes 32, 32 of the jig 30, the pair of hook hooks 21b are simultaneously bent and formed.
At this time, since the distance Na from the tip of the short arm 30b of the jig 30 is set to 10 mm, the short hook hook 21b having a protrusion amount of 15 mm is bent and formed as compared with the long hook hook 21a. Range becomes smaller.

  As shown in FIG. 10, the hook hooks 21a and the hook hooks 21b, each of which is formed by bending the hook hooks 21a and 21b, are joined by welding or the like, as shown in FIG. At this time, the hook hooks 21a and 21a and the hook hooks 21b and 21b combined in pairs are rotated about the support holes 31 and 32 in directions in which their tips face each other, so that If the tips of the hook hooks 21a, 21a and the pair of hook hooks 21b, 21b are brought closer to each other, the joining operation can be performed easily. At this time, the tips of the hook hooks 21a and 21b after joining are directed obliquely forward so as to be bent in the rotation direction Q of the drum 11.

In the ninth to eleventh rows and the sixteenth to eighteenth rows shown in FIG. 5, for example, only long hook hooks 21a are implanted, or only short hook hooks 21b are implanted. Alternatively, long and short hooking claws 21a and 21b may be mixed and implanted in one row. In addition, the arrangement of the long and short hook hooks 21a and 21b may be irregular. In this embodiment, as shown in FIG. 4, a long hook hook 21a is implanted.
In these rows as well, screw nails are inserted through the pilot holes, and when the long hook hooks 21a are used, 22 mm from the planting plate 20 are used. When the short hook hooks 21b are used, the screw hooks are used. Each 15 mm is protruded from the mounting plate 20. Then, using either the long arm 30a or the short arm 30b of the jig 30 according to the amount of protrusion, the hook hooks 21a and 21b are bent and formed in the same manner as in the above-described operation procedure. . Note that the support hooks 31 and 32 formed in one of the corresponding long arm 30a or short arm 30b are loosely fitted to the hook hooks 21a and 21b, but are formed in the long arm 30a or short arm 30b. Any of the pair of support holes 31, 31 or the pair of support holes 32, 32 may be used.
In the ninth row to the eleventh row and the sixteenth row to the eighteenth row, the support holes 31 and 32 are loosely fitted to the hook hooks 21a and 21b, and the support hooks 31a and 21b are extended to the adjacent hook hooks 21a and 21b. It is inconvenient if the arm 30a or the short arm 30b interferes. In these rows, as described above, since the pitch Mp between the adjacent pilot holes is set to 28 mm, from the position where one of the support holes 31 and 32 is formed to the other side surface of the long arm 30a or the short arm 30b. May be 28 mm or less, preferably 25 mm or less. For this purpose, each of the support holes 31 and 32 is divided from the center of the long arm 30a and the short arm 30b, and the center distance between the support holes 31 and 31 and between the support holes 32 and 32 is set to Na and Pb to 7 mm. Therefore, the width W of the long arm 30a and the short arm 30b may be set to 30 mm and the dimensions may be divided. Furthermore, as shown in FIG. 9, it is preferable that the distal ends of the long arm 30a and the short arm 30b are chamfered so that the substantial width dimension can be reduced.

  In the state where the hooks 21a and 21b are implanted, the heads of the hooks 21a and 21b protrude to the back side of the planting plate 20. It is preferable that the back surface of the planting board 20 be flat.

  On the other hand, as shown in FIGS. 3 and 4, the drum 11 is provided with a support plate 18a and a fixing plate 18b for fixing the planting plate 20 at the edge of the opening 11c. The support plate 18 a receives one of the restoring forces of, for example, a torsion coil spring (not shown) and presses one edge of the planting plate 20 against the outer peripheral surface of the drum 11. The fixing plate 18b is inserted into a fixing bolt 18c planted on the outer peripheral surface of the drum 11, and the fixing plate 18b is fixed to the planting plate 20 by tightening a fixing nut 18d screwed to the fixing bolt 18c. The other edge is pressed against the outer peripheral surface of the drum 11. As shown in FIG. 3, one edge of the planting plate 20 is pressed by a pair of support plates 18 a and a pair of fixed plates 18 b so that the opposite edges are pressed and attached to the drum 11. is there. The planting boards 20 are attached at two places in the axial direction of the drum 11 and two places in the circumferential direction, that is, four places, that is, four planting boards 20 are attached. The number of the planting boards 20 attached to the drum 11 may be set to a number according to the processing amount of the processing target to be processed and the size of the drum 11 used for the processing.

  As shown in FIGS. 1 and 4, a non-ferrous metal discharge conveyor 40 as a separated material conveying means is installed inside the drum 11 along the axial direction of the drum 11. The non-ferrous metal discharge conveyor 40 is constituted by a belt conveyor, and extends to the outside of the drum 11 as shown in FIG.

  FIG. 1 is a diagram illustrating a schematic configuration of a sorting plant 1 using a cylindrical rotary sorting device 10 according to this embodiment. Unburned gravel, which is an object to be processed, is supplied to and stored in the hopper 2, and is discharged from the lower portion onto the hopper discharge feeder 2a. The hopper discharge feeder 2a is provided with a hopper discharge feeder vibration motor 2b, which vibrates the hopper discharge feeder 2a and transmits the vibration to the hopper 2, thereby eliminating internal clogging and adhesion. , And can be smoothly discharged from the hopper 2. The discharged workpiece is supplied to the cylindrical rotary sorter supply conveyor 3, and is supplied from the cylindrical rotary sorter supply conveyor 3 to the cylindrical rotary sorter supply feeder 41a. A vibration motor 41b is attached to the cylindrical rotary sorter supply feeder 41a. The vibration generated by the vibration motor 41b prevents the unburned gravel from sticking to the cylindrical rotary sorter supply feeder 41a. The unburned gravel is fed into the cylindrical rotary sorter 10 from the inlet side of the drum 11 via the cylindrical rotary sorter supply feeder 41a.

  An unburned gravel discharge chute 4 is disposed at a lower portion on the outlet side of the drum 11, and the processed material discharged from the lower portion of the drum 11 is transferred from the unburned gravel discharge chute 4 to an unburned gravel discharge conveyor 5. Then, it is fed to the yard 6 where the processed material is stored.

  The operation of the embodiment of the cylindrical rotary sorter according to the present invention configured as described above will be described below.

  Unburned gravel from which metal foreign substances have been removed from the bottom ash through a magnetic separator contains non-ferrous metal-based foreign substances such as copper and stainless steel as segregants that cannot be separated by the magnetic separator. The unburned gravel is supplied to the hopper 2 and stored. When a predetermined amount of unburned gravel is stored, the unburned gravel is discharged from the hopper 2 and supplied to the cylindrical rotary sorter 10 in order to separate nonferrous metal-based foreign matter from the stored unburned gravel. become.

In the cylindrical rotary sorter 10, the drum 11 is rotated by the operation of the drive motor 16.
The rotation of the output shaft by the operation of the drive motor 16 causes the drive sprocket 16a to rotate. On the other hand, a drum-side sprocket 15a is provided on the outer periphery of the drum 11, and a chain 17 is bridged between the drum-side sprocket 15a and the driving sprocket 16a. Therefore, the rotation of the driving sprocket 16 a causes the drum-side sprocket 15 a to rotate together with the drum 11 via the chain 17. In the drum 11, the supporting rings 11a and 11b are supported by the supporting rollers 12a and 12b, and are guided and rotated by the rotation of the supporting rollers 12a and 12b.

  The unburned gravel discharged from the hopper 2 falls to the hopper discharge feeder 2a, is conveyed by the hopper discharge feeder 2a, and is transferred to the cylindrical rotary sorter supply conveyor 3. In addition, the vibration generated by the hopper discharge feeder vibration motor 2b is transmitted to the hopper discharge feeder 2a and the hopper 2, thereby preventing clogging of unburned gravel in the hopper 2 and performing smooth transport. Unburned gravel transferred to the cylindrical rotary sorter supply conveyor 3 is supplied from the cylindrical rotary sorter supply conveyor 3 to the cylindrical rotary sorter supply feeder 41a. The unburned gravel is put into the rotating drum 11 of the cylindrical rotary sorting device 10 via the cylindrical rotary sorting device supply feeder 41a.

  The unburned gravel thrown into the drum 11 is dropped on the lower part of the drum 11. The unburned gravel remaining in the lower portion of the drum 11 is stirred by the rotation of the hook hooks 21 a and 21 b accompanying the rotation of the drum 11, while the non-ferrous metal-based foreign matter contained in the unburned gravel is removed. Scraps and the like are caught by the hook hooks 21a and 21b and are scraped up. The scraped-up non-ferrous metal-based foreign matter rises with the rotation of the hooks and hooks 21a and 21b, and when reaching the upper part, the hook-and-claws 21a and 21b are inverted. Depart from 21b. The detached non-ferrous metal-based foreign matter falls onto the non-ferrous metal discharge conveyor 40 and is carried out of the drum 11 by the non-ferrous metal discharge conveyor 40. The conveyed non-ferrous metal-based foreign matter is stored in the non-ferrous metal discharge conveyor 40 at the destination.

  Large unburned materials, for example, medium to large and medium sized gravel, which are hooked on the hook hooks 21a and 21b, are accompanied by the turning of the hook hooks 21a and 21b. To rise. When it reaches the upper part, it separates from the hook hooks 21a and 21b and falls on the non-ferrous metal discharge conveyor 40. The non-ferrous metal discharge conveyor 40 is disposed above the rotating shaft of the drum 11. On the other hand, gravel of medium and large sizes is less likely to be retained by the hooks 21a and 21b than non-ferrous metal-based foreign matter. For this reason, these medium and large sized gravel are easily separated from the hook hooks 21a and 21b even before reaching the upper part. At this time, the medium and large sized gravel that has detached falls to the lower portion of the drum 11. Further, the small unburned gravel passes through between the hook hooks 21a and 21b, separates, and falls to the lower portion of the drum 11.

  The medium and large sized gravel carried to the upper portion of the drum 11 by the hook hooks 21a and 21b and dropped onto the non-ferrous metal discharge conveyor 40 is conveyed by the non-ferrous metal discharge conveyor 40 together with the non-ferrous metal foreign matter. When conveyed by the non-ferrous metal discharge conveyor 40, since the medium and large-sized gravel and non-ferrous metal are mixed, the non-ferrous metal-based foreign matter is manually collected and collected, and Gravel is stored in the yard 6 for storing the processed material.

  In this embodiment, the rotation axis of the drum 11 is described as being horizontal, but the direction of this rotation axis may be inclined relative to the horizontal direction. The tilt angle is set according to the properties of the object to be processed and the separated object. In addition, the direction of inclination can be set such that the exit side is set to the lower side and the exit side is set to the higher side.

  ADVANTAGE OF THE INVENTION According to the cylindrical rotary sorter which concerns on this invention, since an isolation | separation thing can be reliably sorted and collect | recovered from a to-be-processed object, For example, the metallic foreign substance is mixed in the unburned gravel removed through the magnetic separator. Non-ferrous metal-based foreign matter can be reliably sorted and separated, and unburned gravel can be used as a substitute for cut crushed stones, and non-ferrous metal-based foreign matter can be sold, resulting in waste that is disposed of as industrial waste. Therefore, a cylindrical rotary sorter that contributes to environmental conservation and has a high economic effect can be provided.

DESCRIPTION OF SYMBOLS 1 Sorting plant 2 Hopper 2a Hopper discharge feeder 2b Hopper discharge feeder vibration motor 3 Cylindrical rotary sorter supply conveyor 4 Unburned gravel discharge chute 5 Unburned gravel discharge conveyor 10 Cylindrical rotary sorter 11 Drum 11a, 11b Support circle Ring 11c Opening 12a, 12b Supporting roller 13 Mounting frame 14a, 14b Bearing bracket 15a Drum side sprocket 16 Drive motor 16a Drive sprocket 17 Chain 18a Support plate 18b Fixing plate 18c Fixing bolt 18d Fixing nut 20 Planting plate 21 Planting area 21a , 21b Hook and hook 22 Contact part 30 Jig 30a Long arm 30b Short arm 31, 31 Support hole 32, 32 Support hole 40 Non-ferrous metal discharge conveyor 41a Cylindrical rotary sorter supply feeder 41 Cylindrical rotational sorter supply feeder vibration motor

Claims (11)

A rotating cylindrical drum into which an object is placed,
Separated material discharge means extending from the inside of the drum to the outside,
A number of hook claws arranged on the inner peripheral surface of the drum and protruding into the drum,
A cylindrical rotary sorter comprising:   The cylindrical rotary sorter according to claim 1, wherein the direction of the rotation axis of the drum is a horizontal direction.   The cylindrical rotary sorter according to claim 1, wherein a direction of a rotation axis of the drum is inclined at an arbitrary angle with respect to a horizontal direction.   The cylindrical rotary sorter according to any one of claims 1 to 3, wherein a transport direction of the separated material discharging means is a horizontal direction.   The cylindrical rotary sorter according to any one of claims 1 to 4, wherein the hook hook is planted on an inner peripheral surface of the drum. The hook hook is planted on an arc-shaped planting plate concentric with the rotation center of the drum,
Forming an opening in a part of the peripheral wall of the drum,
6. The method according to claim 1, wherein the planting plate is detachably attached to the opening from the outside of the drum, and the hook hook is projected into the inside of the drum. A cylindrical rotary sorter according to the present invention.   The cylindrical rotary sorter according to any one of claims 1 to 6, wherein lengths of the hook hooks are different.   The cylindrical rotary sorter according to any one of claims 1 to 7, wherein a tip portion of the hook hook is bent.   The cylindrical rotary sorter according to any one of claims 1 to 8, wherein tips of two adjacent hook hooks of the hook hook are joined to each other.   The cylindrical rotary sorter according to any one of claims 1 to 9, wherein the separated material discharging means is disposed above a rotation axis of the drum.   2. The object to be treated is unburned gravel obtained by removing metallic foreign matter from bottom ash of a biomass boiler, and the separated material is non-ferrous metal-based foreign matter contained in the unburned gravel. The cylindrical rotary sorter according to any one of claims 1 to 10.

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