JP2003251218A - Cinder sorter after co-combustion of coal and waste tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To promote recycling of cinders after co-combustion of coal and waste tires by making it possible to easily and surely sort and separate the cinders to magnetic materials, such as wire, and nonmagnetic materials. <P>SOLUTION: The cinder sorter has a feed hopper 1 for the cinders, a fixed volume feeder 3 for the cinders, a crusher 4 which has crushing rolls 41a and 41b with a pair of projections 42a and 42b rotatable at different speeds and crushes the cinders (a) below a fixed grain size, a vibration feeder 62 and a magnetic separation drum 72 consisting of a rotary drum 74 and a magnet 75, in which the cinders (a) fed by the feeder 62 can be sorted and separated to the nonmagnetic materials a1 and the magnetic materials a2 by utilizing the attraction and non-attraction effects of the magnet 75 by accompanying the rotation of the rotary drum 74. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cinder selection device for selecting magnetic substances such as wires in cinder (bottom ash) after co-firing of coal and waste tires.

[0002]

2. Description of the Related Art For the recycling of waste tires, for example, in a co-fired boiler or other coal cogeneration plant, waste tires are used as fuel together with coal. When such coal and waste tires are used as fuel, the cinder (bottom ash) discharged after combustion is a magnetic material such as a steel material used for a steel belt or bead wire as a tire reinforcing member. The metal remains as a combustion residue. for that reason,
This residue hinders the recycling of the cinder as it is, and there is no alternative but to landfill it as industrial waste.

[0003] In particular, in order to prevent magnetic substances (metals) such as wires from remaining in the cinder discharged after the combustion of coal and waste tires, the tires must be removed from waste tires before use as fuel. It is said that it is necessary to separate magnetic materials such as steel belts and bead wires as reinforcing members.

However, in order to separate the magnetic substances such as the wires before combustion, it is necessary to finely crush the waste tire, which requires a large amount of equipment investment and increases the cost. Moreover, if it is finely crushed, there is a problem in using it as a fuel for co-firing with coal.
Therefore, the fact is that the cinder containing the magnetic material is actually recycled as industrial waste without being recycled.

Therefore, in the present invention, magnetic substances such as wires are separated by treating the cinder after co-firing of coal and waste tires, and the present invention is not separated from magnetic substances such as wires. It is intended to provide a cinder selection device that can easily and surely separate a magnetic substance from a magnetic substance and easily recycle the cinder.

[0006]

DISCLOSURE OF THE INVENTION The present invention is an apparatus for selecting cinders after co-firing of coal and waste tires. In order to solve the above-mentioned problems, magnetic properties such as wires after co-firing of coal and waste tires are used. A charging hopper for a cinder containing a substance, a rotary type constant amount feeding device capable of quantitatively feeding the cinder sent out from the feeding port of the charging hopper, and a pair of a plurality of protrusions arranged on the outer peripheral surface. The crushing rolls are arranged side by side at different intervals so that they can rotate at different speeds, and a crusher for crushing the husks sent from the constant quantity feeding device to a predetermined particle size or less, and the husks crushed by the crusher are vibrated. With a vibrating type feeding device that can be quantitatively fed to the magnetic separator by expanding it so as to form a substantially uniform thickness, and a magnetic selecting drum composed of a rotating drum and a magnet, the burning shell fed by the vibrating type feeding device can be used. , Rotating drum Adsorption of accompanying magnet rotation, using a non-adsorption, and a non-magnetic material and a magnetic material sorting separation drum rotary magnetic separator, and characterized in that it comprises a.

According to the above-described cinder selection device, the cinder fed from the charging hopper is fed to the crusher by a fixed amount so that the subsequent crusher does not become overloaded by the constant amount feeding device, and the crusher of the crusher is operated. The pair of crushing rolls are rubbed efficiently by rotation of the crushing rolls, especially rotation at different speeds, and crushed into particles of a predetermined size or smaller. The debris thus crushed is supplied to the drum rotary type magnetic separator by a predetermined amount almost uniformly by the vibrating feeder, and in this magnetic separator, the adsorption and non-adsorption of the magnets accompanying the rotation of the rotating drum of the magnetic separation drum. By utilizing the action, the non-magnetic substance and the magnetic substance are separated.

The drum rotary type magnetic separator described above is rotated about a horizontal axis below the supply port inside the magnetic separation chamber main body having a supply port for the cinders fed by the vibration type feeding device in the upper part. A rotating drum, and a magnetic separation drum composed of a magnet that is supported in the lower part of the rotating drum in the direction opposite to the rotating direction and is supported in a non-contact manner with the rotating drum. The cinder that is dropped and supplied upward is guided downward by the rotating drum so that the non-magnetic material in the cinder drops to the discharge port on the lower surface side of the drum on the front side in the rotation direction, and the magnetic material is adsorbed to the drum. Then, the drum is guided to the front side in the rotation direction on the lower surface side and dropped to the discharge port for the magnetic material.

In this case, the burning shell fed by the vibrating type feeder falls onto the outer peripheral surface of the magnetic separation drum mounted inside the main body of the magnetic separation chamber and is guided downward as the rotary drum rotates. Then, the non-magnetic material in the cinder which is not adsorbed by the magnet in the rotating drum falls as it is to the discharge port on the lower surface side of the rotating drum on the front side in the rotation direction, and the wire or the like adsorbed to the rotating drum by the magnet. The magnetic substance is guided to the front side in the rotation direction on the lower surface side of the drum and drops to the discharge port for the magnetic substance at a position where the attraction force of the magnet stops acting. As a result, the non-magnetic material and the magnetic material are sorted and separated.

In the aforementioned cinder selection device, it is preferable to provide a vibrator at or near the feed port of the chopper charging hopper. As a result, it is possible to continuously feed the cinder containing water for the extinguishing cooling treatment after combustion without fear of clogging due to adhesion or the like.

The constant quantity feeding device includes an impeller provided with a plurality of vanes protruding in the radial direction at every required interval in the circumferential direction of the rotary shaft, and the outer edge shape of the vanes has a protruding height at an axially intermediate portion. It can be made to be recessed so as to lower. As a result, even if a slightly large cinder is mixed, it can be smoothly passed without being bitten by the vane and can be delivered without fear of clogging. It should be noted that, as for this constant amount feeding device, it is preferable that the feeding amount can be appropriately adjusted by adjusting the rotation speed,
Thereby, the feed amount can be set appropriately according to the state of the cinder to be treated.

The crushing roll with a pair of protrusions in the crusher is preferably arranged such that the projections and depressions on the outer peripheral surface are located at mutually alternate positions, whereby the crushing rolls of both crushing rolls are It is possible to surely rub the crust with the projections and crush it to a certain particle size or less.

The crusher may be provided with an air blow device for the crush rolls having the pair of protrusions. By blowing air with this air blow device, it is possible to promote the drying of the cinder and prevent the cinder containing water from adhering to and remaining on the crushing roll.

In the crushing roll, a metal having a high hardness such as steel is welded to the outer peripheral surface of the drum in a buildup manner, and concave grooves are formed at required intervals in the axial direction and the circumferential direction. It is preferable that the trapezoidal rectangular protrusions are arranged in parallel in the axial direction and the circumferential direction. As a result, the cinder can be reliably rubbed in and crushed to a certain particle size or less, and the durability of the crushing roll can be enhanced.

In the drum rotary type magnetic separator, a discharge port for discharging an intermediate containing iron is provided between the discharge port of the non-magnetic material at the lower part of the main body and the discharge port of the magnetic material. You can As a result, while being attracted to the outer peripheral surface of the magnetic selection drum by the magnet and being guided to the front side in the rotation direction on the lower surface side of the drum, an intermediate product containing a certain amount of iron, which is neither a non-magnetic material nor a completely magnetic material, is introduced into the discharge port. By falling
In addition to the magnetic substance and the non-magnetic substance, the intermediate substance containing iron can be separated at the same time, and thus the magnetic substance and the non-magnetic substance can be separated and separated more accurately.

Further, when the drum rotary type magnetic separator is provided with a blower device for the magnetic separation drum, the blowing of air promotes evaporation of water, and the contained water causes a burnt shell to adhere to the magnetic separation drum and solidify and remain. Can be prevented. In addition, this blower device can also remove deposits and clean the drum.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described based on an embodiment shown in the drawings.

FIG. 1 is a schematic cross-sectional explanatory view of one embodiment of a cinder selection apparatus according to the present invention, FIG. 2 is a front view of the apparatus as a whole, FIG. 3 is a side view of a charging hopper, and FIG. FIG. 6 is a side view, FIG. 5 is a vertical cross-sectional view of an impeller portion of the constant quantity feeding device, and FIG.
Is a plan view of the crusher, FIG. 7 is a side view of the crusher, FIG. 8 is an enlarged half-section plan view of a part of the pair of crushing rolls, and FIG. 9 is a front view of the magnetic separator of the crushed cinder. 10 is a side view of the same part, and FIG. 11 is a sectional view of the same.

In the figure, (1) is a charging hopper for the cinder after the co-firing of the coal to be sorted and waste tires, especially the cinder (a) containing a magnetic substance such as steel wire as a tire reinforcing member. It is supported at the required height by the frame (2), and the feed port (11) is at the lower end.
Is provided. The inclination of the four side surfaces of the charging hopper (1) is such that the cinder (a) containing a certain amount of water (around 40% or more) for the extinguishing cooling treatment after co-firing does not remain on the lower end portion. It is set so that it can be guided to the feed port (11). The inclination angle is preferably in the range of 40 ° to 60 °. Further, in the case of this embodiment, a vibrator (12) capable of appropriately vibrating the feed port (11) is provided at or near the feed port (11).

(3) is a rotary type constant quantity feeding device installed below the charging hopper (1), and the upper end of the case body (30) which also functions as a chute is the feeding port (11).
And the lower end opening (31) is connected to a crusher described later.

As shown in FIG. 4 and FIG. 5, the constant quantity feeding device (3) is arranged at every required interval in the circumferential direction of the rotary shaft (32).
For example, the vane wheel (34) is provided with a plurality of vanes (33) protruding in the radial direction at intervals of 90 °. (35) is a flange for supporting the vane (33). In this impeller (34), the rotating shaft (32) is a motor (36).
It is connected to a transmission means (37) such as a chain and is rotationally driven by a motor (36). This constant quantity feeding device (3) is configured so that the feed amount can be appropriately adjusted and set according to the state of the cinder to be processed by adjusting the rotation speed by the motor (36).

The vanes (33) of the impeller (34) are
In particular, as shown in the drawing, the outer edge shape may be a curved shape that is recessed so that the protruding height is low at the intermediate portion in the axial direction. In the case of FIG. 5, the vane (33) of the impeller (34)
Is divided into left and right by disposing a flange (35) in the axial center of the rotary shaft (32), and has a shape in which the axial center portion of the outer edge of each vane (33) is recessed. As a result, even if a slightly large cinder is mixed, the vane (33) can smoothly pass through without being caught and can be delivered without fear of clogging.

(4) is a crusher connected to the lower end of the case body (30) at the lower part of the constant quantity feeding device (3). As shown in FIG. 6, in the crusher (4), an upper opening of a frame (40) which constitutes a box-shaped housing communicates with a lower end opening (31) of the constant quantity feeding device (3). Inside the frame (40), a pair of crushing rolls (41a) having a large number of protrusions (42a) (42b) on the outer peripheral surface.
(41b) are rotatably arranged side by side with a predetermined interval (S) according to the crushed particle size due to the rubbing of the cinder (a).

In the crushing rolls (41a) and (41b), the rotary shafts (43a) and (43b) have sprockets (44a) (44b) on the respective shafts, and the sprocket (44) on the intermediate shaft.
c) is connected to a motor (46) by a chain (45) or the like that engages with them, and is provided so as to be driven to rotate downward by the motor (46) on the opposite side.
In particular, by making the diameters (number of teeth) of the sprockets (44a) (44b) of both shafts that engage with the chain (45) different, the crushing rolls (41a) (41b) rotate at different speeds. The scrubbing shell (a) is satisfactorily rubbed in by this, and the scrubbing shell (a) can be crushed into particles of a predetermined size or smaller.

The protrusions (42a) (42b) of the crushing rolls (41a) (41b) may have any protrusion shape, but in the illustrated embodiment, the top surface has a quadrangular shape. The rectangular protrusions (42a) (42b) having a substantially trapezoidal cross section are arranged in parallel on the outer peripheral surface of the drum at a required interval in the axial direction and the circumferential direction. These protrusions (42a) (42b)
For example, a metal such as a steel having a relatively high hardness used for a welding rod is welded to the outer peripheral surface of the drum in a buildup manner, and a groove (47) is formed at every required interval in the axial direction and the circumferential direction.
A) (47b) is cut to form the above shape. Thereby, the protrusion (42a)
(42b) can be easily formed. Further, the projections (42a) made of steel material having a relatively high hardness used for the above-mentioned welding rod
(42b) is hard, has high wear resistance, is less likely to be damaged, and has excellent durability.

The height, size, interval and the like of the projections (42a) and (42b) can be appropriately determined according to the cinder (a) to be treated and the crushed particle size. For example, the protrusion (42
a) The height of (42b) is about 3.5 mm, the vertical and horizontal dimensions of the top surface are about 6.5 mm, and the pitch is about 20 mm. Of course, it is also possible to implement with dimensions other than the above.

Further, the both crushing rolls (41a) (41
b) is such that the unevenness due to the protrusions (42a) (42b) on the outer peripheral surface of the drum are in mutually alternate positions as shown in the figure.
It is preferable in practice to dispose both protrusions (42a) (42b) at axially displaced positions, and this makes it possible to favorably retain the rubbing effect of the cinder (a). The distance (S) between the crushing rolls (41a) and (41b) is 5
Approximately about 7 mm is preferable, but depending on the crushed particle size, it may be larger or smaller than the above.

The crusher (4) can be provided with air blowers (48a) (48b) for blowing air to each of the pair of crushing rolls (41a) (41b) with projections. (The illustration is omitted in FIGS. 2 to 11).
The air blowing devices (48a) and (48b) can accelerate the drying of the cinder shell and prevent the cinder shell (a) containing water from adhering to and remaining on the crushing rolls (41a) and (41b).

(49) is a discharge chute of the crusher (4), and is provided so that the crushed cinder (a) can be discharged onto the transfer conveyor (5) below.

The transfer conveyor (5) is composed of a belt conveyor which rotates endlessly, and is provided to transfer the crushed cinder (a) to above the drum rotary type magnetic separator.

(6) is a machine frame, (61) is a hopper arranged below the tip of the transfer conveyor (5),
Burning husk (a) falling from the tip of the conveyor (5)
Is provided so as to be fed to a vibration type feeder (62) arranged below the hopper (61).

The vibrating type feeder (62) is provided with a chute (63) so that the vibration driving means (64) can vibrate, for example, in the front-rear direction, and by this vibrating action, the hopper (61). It is provided so that the falling cinder (a) can be spread on the chute (63) to a substantially uniform thickness and transferred to the magnetic separator below. (65)
Is a bracket for supporting the feeding device (62).

Reference numeral (7) is a drum rotary type magnetic separator, and below the vibrating type feeding device (62), a cinder (a) fed from the vibrating type feeding device (62) and dropped and supplied.
Is provided so that it can be mainly separated into a magnetic substance and a non-magnetic substance by using a magnet.

This drum rotary type magnetic separator (7) is shown in FIG.
As shown in FIG. 11, in the magnetic separation chamber body (70) having a supply port (71) for receiving the cinder (a) dropped and supplied from the feeding device (62), and inside the magnetic separation chamber body (70). , A magnetic separation drum (72) horizontally supported below the supply port (71).

The magnetic separation drum (72) is fixed to a horizontal shaft (73) supported by bearings on the machine base frame (6) and is rotatable about the horizontal shaft (73) in the direction of the arrow in the figure. And a rotating drum (74) supported by the rotating drum (74)
It is composed of a magnet (75) arranged and fixed inside the drum in a non-contact state and in proximity thereto. The magnet (75) is made of a permanent magnet or an electromagnet whose cross section is substantially semicircular, and as shown in the figure, it is rotated at a lower side of the rotary drum (74) opposite to the rotation direction by a required angle. Is supported as. Reference numeral (76) is a motor for rotating the drum (74), which is connected to the horizontal shaft (73) by a transmission means (77) such as a chain or a sprocket.

In the lower part of the magnetic separation chamber body (70), a position on the lower surface side of the rotary drum (74) in the front direction of rotation, that is, a lower position on the side where the drum (74) rotates downward, A non-magnetic material discharge port (78) containing no iron is provided, and the wire is provided at a position on the lower surface side of the drum on the front side in the rotation direction, that is, on the lower side of the side where the drum (74) rotates upward. A discharge port (79) for magnetic substances such as is provided. As a result, the burning shell (a) supplied onto the magnetic separation drum (72) is guided downward by the rotating drum (74) so that the non-magnetic substance (a1) in the burning shell (a) is located on the front side in the rotation direction. The magnetic substance (a2) can be dropped to the discharge port (78) and to the discharge port (79) on the front side in the rotation direction.

In the case of the illustrated embodiment, a discharge port (80) for an intermediate containing iron is provided between the discharge ports (78) and (79), which is not a non-magnetic material but a perfect one. The intermediate (a3) containing a certain amount of iron, which is not a magnetic substance, is dropped onto the discharge port (80) while being attracted by the magnet (75) and guided to the front side in the rotation direction on the drum lower surface side. It is provided.

Between the outlets (78) (79) (80),
As shown in the figure, it has an inclined surface with a triangular mountain cross section, and it is a non-magnetic material (a1) or magnetic material (a) falling from the magnetic separation drum (72).
2) and the intermediate product (a3) are provided so that they will surely enter one of the discharge ports (78) (79) (80) without remaining.

The magnetic separator (7) can be provided with a blower device (81) for blowing air to the magnetic selection drum (72) (not shown in FIGS. 2 to 11).
The blowing of the blower device (81) promotes drying of the cinder (a) and prevents the cinder (a) containing water from adhering to both drums and solidifying and remaining. Further, by using this air blow, it is possible to remove the adhering matter and clean the drum.

Reference numeral (82) is a recovery bucket installed below the magnetic material discharge port (79) and the intermediate product discharge port (80), and is used for the magnetic material and the intermediate product. It can also be provided separately. Reference numeral (83) is a conveyor for recovery disposed below the discharge port (78) for the non-magnetic material.

The operating state of the cinder selection apparatus of the above embodiment will be described. The cinder (a) thrown into the feeding hopper (1) is sent out from the feeding port (11) and is kept constant so that the crusher is not overloaded by the rotation of the impeller (34) of the constant quantity feeding device (3). The quantity is sent to the crusher (4).
The cinder (a) sent to the crusher (4) rotates downwards on the opposite sides of the pair of crushing rolls (41a) (41b) in the crusher (4), especially both rotations at different speeds. As a result, it is rubbed between the crushing rolls (41a) and (41b) by the protrusions (42a) and (42b) provided on the outer peripheral surfaces of the crushing rolls (41a) and (41b) and crushed to a particle size not larger than a predetermined particle size. The objects fall apart in a mixed state.

The cinder (a) thus crushed is transferred from below the crusher (4) to above the drum rotary type magnetic separator (7) by the transfer conveyor (5), and from its tip end to the hopper (61). ) And is fed to the vibration type feeder (62). The vibrating feeder (62) spreads the crust (a) to a substantially uniform thickness by vibrating action and drops it by a predetermined amount into the feed port (71) of the drum rotary magnetic separator (7) below the feeding. .

Supply port (71) of the drum rotary type magnetic separator (7)
The supplied cinder (a) drops onto the outer peripheral surface of the magnetic separation drum (72) equipped inside the magnetic separation chamber body (70) and is guided downward as the rotary drum (74) rotates. Then, the non-magnetic substance (a1) in the cinder (a) that is not adsorbed by the magnet (75) in the rotating drum (74) directly drops to the discharge port (78) on the lower side of the rotating drum in the direction of rotation. In addition, the magnetic substance (a2) such as a wire attracted to the rotary drum (74) by the magnet (75) is guided to the front side in the rotation direction on the lower surface side of the drum, and the attraction force of the magnet (75) is increased. When it stops working, it falls into the magnetic material discharge port (79). The intermediate product (a3) containing a certain amount of iron is attracted by the magnet (75) and dropped to the intermediate product discharge port (80) while being guided to the front side in the rotation direction on the drum lower surface side and discharged. It As a result, the non-magnetic material (a1), the magnetic material (a2), and the intermediate material (a3) containing a certain amount of iron can be separated and separated.

[0044]

As described above, according to the burning husk selection device of the present invention, the burning husk after the co-firing of coal and waste tires is continuously crushed to obtain a magnetic substance such as a wire and a non-magnetic substance. Simple, reliable, and efficient selection and separation processing can be performed. Therefore, there is no need for complicated and special equipment such as when crushing and separating waste tires before combustion,
Can be processed at low cost. Therefore, it is possible to easily recycle the cinder after co-firing of coal and waste tires.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional explanatory view of one embodiment of a cinder selection device according to the present invention.

FIG. 2 is a front view of the entire apparatus of the above.

FIG. 3 is a side view of a charging hopper in the device of the present invention.

FIG. 4 is a side view of a constant-volume feeding device in the device of the present invention.

FIG. 5 is a vertical cross-sectional view of an impeller portion of the above-mentioned constant quantity feeding device.

FIG. 6 is a plan view of a crusher in the device of the present invention.

FIG. 7 is a side view of the above crusher.

FIG. 8 is an enlarged half plan view of a part of a crushing roll of the above crusher.

FIG. 9 is a front view of a magnetic separator part of a crushed cinder.

FIG. 10 is a side view of the same portion.

FIG. 11 is a sectional view of the above.

[Explanation of symbols]

(1) Input hopper (11) Feed port (12) Vibrator (2) Device frame (3) Fixed amount feeding device (30) Case body (31) Bottom opening (32) Rotation axis (33) Vane (34) Impeller (36) Motor (37) Transmission means (4) Crusher (40) Frame (41a) (41b) A pair of crushing rolls (42a) (42b) Protrusion (43a) (43b) Rotating shaft (44a) (44b) Sprocket (45) Chain (46) Motor (47a) (47b) Recessed groove (48a) (48b) Air blower (5) Transfer conveyor (6) Machine frame (61) Hopper (62) Vibratory feeder (63) Shoot (64) Vibration drive means (65) Bracket (7) Drum rotation type magnetic separator (70) Main body of magnetic separation room (71) Supply port (72) Magnetic selection drum (73) Horizontal axis (74) rotating drum (75) Magnet (76) Motor (77) Transmission means (78) Discharge port for non-magnetic materials (79) Discharge port for magnetic materials (80) Discharge port for intermediates (81) Blower device (A) Cinder (A1) Non-magnetic material (A2) Magnetic material (A3) Intermediate (S) Interval

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B02C 4/28 B02C 4/28 AZ 4/30 4/30 23/00 23/00 D 23/08 23 / 08 Z B03C 1/14 B03C 1/14 B09B 3/00 F23J 1/00 A 5/00 ZAB B09B 5/00 ZABN F23J 1/00 3/00 Z (72) Inventor Hideo Sudo Edobori, Nishi-ku, Osaka City, Osaka Prefecture 1-17-18 Toyo Tire & Rubber Co., Ltd. (72) Inventor Mitsuo Nanjo 1-17-18 Edobori, Nishi-ku, Osaka-shi, Osaka Prefecture Toyo Tire & Rubber Co., Ltd. (72) Inventor Hisano Sano Edobori, Nishi-ku, Osaka-shi, Osaka 1-17-18 Toyo Tire & Rubber Co., Ltd. (72) Inventor Issei Watanabe 1-1-17 Edobori, Nishi-ku, Osaka-shi Osaka Prefecture Toyo Tire & Rubber Co., Ltd. (72) Inventor Shuichi Teramura Sendai City, Miyagi Prefecture Izumi Ward Oka 1-chome 7-9 F term (reference) 3K061 NA03 NA14 NA17 4D004 AA36 AB03 BA05 CA04 CA09 CB13 CB42 4D063 CC01 CC08 GA08 GA10 GB02 GC05 GC08 GC16 4D067 EE04 EE25 EE27 EE44 GA04 GA16 GB10 4G068 AD2911 AF09

Claims (9)

[Claims] 1. A rotary hopper capable of quantitatively feeding a hopper for charging a cinder containing a magnetic substance such as a wire after co-firing of coal and a waste tire, and a constant amount of the cinder sent from a feed port of the charging hopper. A fixed amount feeding device and a pair of crushing rolls provided with a large number of projections on the outer peripheral surface are arranged side by side at a predetermined interval so that they can rotate at different speeds, and the burned shell sent from the fixed amount feeding device is made to have a predetermined grain size or less. From a rotary drum and a magnet, a crusher for crushing, a vibrating feeder that can spread the cinder crushed by the crusher to a substantially uniform thickness by vibrating action and quantitatively feed it to a magnetic separator. A drum rotary type that is equipped with a magnetic separation drum, and separates and separates the non-magnetic material and the magnetic material from the burning shell fed by the feeding device by utilizing the adsorption and non-adsorption effects of the magnet accompanying the rotation of the rotating drum. Equipped with a magnetic separator An apparatus for selecting cinders after co-firing of coal and waste tires, which is characterized in that 2. The drum rotary type magnetic separator rotates about a horizontal axis below the supply port inside a magnetic separation chamber body having a supply port for a cinder fed by the feeding device at an upper portion. A magnetic separation drum including a rotating drum and a magnet that is supported in the lower part of the rotating drum in a direction opposite to the rotation direction and is supported in a non-contact manner with the rotating drum. The cinder that is dropped and supplied to the drum is guided downward by the rotating drum so that the non-magnetic material in the cinder drops to the discharge port on the lower surface side of the drum on the front side in the rotational direction, and the magnetic material is adsorbed to the drum. The burning husk selection device after co-firing of coal and waste tire according to claim 1, wherein the device is configured so as to be guided to the front side in the rotation direction on the lower surface side of the drum and dropped to the discharge port for magnetic material. 3. The vibrator according to claim 1 or 2, wherein a vibrator is provided at or near the feed port of the hopper for charging the cinder.
An apparatus for selecting cinders after the co-firing of coal and waste tires according to 1. 4. The constant amount feeding device comprises an impeller provided with a plurality of vanes protruding in a radial direction at required intervals in the circumferential direction about a rotation axis, and an outer edge shape of the vane is an axial intermediate position. The cinder shell sorting device after co-firing coal and waste tire according to any one of claims 1 to 3, which is recessed so as to reduce a protruding height at a portion. 5. The crushing roll having a pair of projections in the crusher is arranged so that the projections and depressions on the outer peripheral surface are arranged in mutually staggered positions. An apparatus for selecting cinders after co-firing of the described coal and waste tires. 6. The cinder after co-firing of coal and waste tire according to claim 1, wherein the crusher is provided with an air blow device for the crush roll having the pair of protrusions. Sorter. 7. The crushing roll is characterized in that a metal such as steel having a high hardness is welded to the outer peripheral surface of the drum in a build-up manner, and concave grooves are formed at required intervals in the axial direction and the circumferential direction. The cinder separation device after co-firing of coal and waste tire according to any one of claims 1 to 6, wherein prismatic protrusions having a substantially trapezoidal cross section are arranged in parallel in the axial direction and the circumferential direction. 8. The drum rotary type magnetic separator is provided with a discharge port for discharging an intermediate containing iron, between the discharge port of the non-magnetic material and the discharge port of the magnetic material in the lower part of the main body. An apparatus for selecting cinders after co-firing of coal and waste tire according to any one of claims 1 to 7. 9. The cinder separation device after co-firing of coal and waste tire according to claim 1, wherein the drum rotary type magnetic separator is provided with a blower device for the magnetic separation drum.