JPH11151465A - Sorter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sepn and recovery efficiency and to enhance the life of a sorter by lessening the coexistence of light weight materials to be treated in heavy weight materials to be treated and to lessen the coexistence of the heavy weight materials to be treated in the light weight materials to be treated. SOLUTION: This sorter has sorting brushes 18, 118 implanted in a pair of parallel sorting rolls 17, 117 positioned at one end to the supply end of the materials to be treated. The materials to be treated are moved on the sorting brushes 18 by the spiral brushes implanted therein or the brushes are formed to multiple stages, by which the treatment capacity in the axial direction of the rolls is increased. Diffusing means 130 are used for the sorting brushes 118, by which the treatment capacity in the axial direction of the rolls is increased and the sorting is executed in accordance with the sp. gr., shape, etc., of the materials to be treated.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION

[0001] The present invention relates to a sorting apparatus suitable for sorting granular materials, and more particularly to a sorting apparatus capable of sorting an object to be treated crushed to a predetermined particle size range according to purpose.

[Prior art]

[0002] For example, those obtained by dismantling construction waste materials such as concrete waste materials need to be further separated for reuse and disposal. The components contained in these concrete waste materials include those that can be reused as resources such as concrete pieces, stones, brick pieces, earth and sand, reinforcing bars, wood chips, shrimp pipes,
Vinyl, waste, plastic, paper, etc. are roughly classified into those that are disposed of by landfilling or incineration.

[0003] There is a method in which these sorts are performed manually. However, in the manual sort method, there is a risk of being caught in a line, work restrictions due to dust and the like, and a processing amount is limited due to fatigue and the like. Apart from a sorting process that can only be relied upon, a new machine sorting method has been introduced.

[0004] As the mechanical sorting method, a rotating brush method is known in addition to a curtain method, a vibrating wind-type sorting method, and an inclined type sorting machine. Among them, the curtain type is a separation type using an inclined conveyor and a rotary chain curtain. The vibratory wind power sorting method is a method in which an object to be treated is loosened by vibrating action and separated using the suction power and jet power of the wind power.The inclined type sorting machine uses an ascending slope to roll with rolls and disks. This is a method that separates those that are easy to roll from those that are difficult to roll.

A rotary brush type sorter is disclosed in
As shown in Japanese Patent No. -5768, when a workpiece is dropped on the brush, the lightweight workpiece is carried by the rotating brush in a direction substantially tangential to the axis substantially perpendicular to its axis, An object to be processed having a high specific gravity is a sorting method utilizing the fact that the object falls from a gap between the rotating brushes.

[0006] In the various sorting methods except for the rotary brush type, the apparatus itself is expensive, and when it is mounted on existing equipment, large equipment remodeling is required, the installation space is large, and land is required. Further, since the power for the equipment is large, a burden is imposed on additional power, and furthermore, investment in equipment other than the main body is required, and there are drawbacks such as relatively large noise and vibration.

On the other hand, the rotary brush type sorting apparatus has the advantages that the apparatus itself can be constructed at low cost and the equipment power is only rotating, so that there is no burden on increasing the power and noise and vibration are relatively small. .

[Problems to be solved by the invention]

However, the conventional rotary brush type sorting apparatus has the following problems. First, in this sorting device, the recovery rate is low because the transport length by the brush is substantially shortened. More specifically, the light-weight object to be conveyed on the brush is usually carried in the rotating direction on the brush, but may be left between the brushes due to the sliding of the brush. In addition, it may be called a so-called foul tip, it may jump between the rotating brush tip or the rotating brush, and if a heavy object falls on the rotating brush while this state is maintained, it will fall together with the heavy object As a result, the separation and recovery rate was reduced. Conversely,
An object to be treated, which has a large specific gravity but has fine particles, is also carried by a brush together with a lightweight object to be treated, which also causes a decrease in the separation and recovery rate. Further, since the loaded workpiece must always pass over the axis of the rotary brush, the load of the falling workpiece is directly applied to this axis frequently during loading. When the weights overlap, the shaft and the bearing are easily damaged, and the life of the device is shortened.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to prevent light-weight workpieces from being mixed with heavy workpieces and heavy-weight workpieces from being mixed into lightweight workpieces. Another object of the present invention is to provide a sorting apparatus capable of improving the separation / recovery efficiency and extending the life of the apparatus.

[Means for Solving the Problems]

[0010] To achieve the above object, the present invention provides a method for producing a plurality of sorting brushes, which is formed by rotating a pair of substantially parallel cylinders. A sorting roll to which the workpiece is dropped and supplied from above the end; a drive motor for rotating each of the sorting rolls in a direction in which the workpiece to be dropped and flipped is raised between the valleys; disposed on a side surface of the sorting roll. And a tray for guiding the object to be treated which is rebounded to the side of the sorting roll. The brush is formed in a spiral shape from a supply side of the object to be opposed to an opposite end direction. The object to be processed, which is planted on the outer periphery of the spiral and is so heavy that it cannot be supported by the rotation of the spiral, falls below the sorting roll, and the object to be supported is moved to the tip of the sorting roll by the rotation of the spiral. And it has a configuration of a sorting apparatus according to claim and.

With such a configuration, in the present invention, the object to be processed is dropped and supplied from above the cylindrical axial end portion between the valleys of the sorting rolls of the pair of parallel cylinders. The sorting roll is rotating as described above, and the object to be processed supported by the rotation of the sorting brush planted on the spiral is moved to the tip of the sorting roll by the rotation of the spiral. In addition, an object to be processed that is too heavy to be supported by the rotation of the spiral falls below the sorting roll. Further, an object to be processed which is jumped out of the valley of the sorting roll by the rotation of the brush is discriminated and accommodated by the tray. With such a configuration, the transport length can be sufficiently secured according to the axial length of the roll, and the separation operation is performed while being sent to the leading side in the rotation direction along the spiral shape of the selection brush, so that separation and collection is performed. Efficiency can be improved. Further, since the object to be processed does not drop vertically on the axis of the rotating roll and gives an impact, no excessive load is applied to this axis, and the life of the apparatus can be extended.

Further, in the present invention, by arranging the pair of rolls in parallel in a plurality of upper and lower stages, a finer sorting operation can be performed.

Further, since the angle of the pair of rolls can be adjusted with respect to the horizontal plane, an angle having a good transfer efficiency and a good separation and recovery rate can be freely selected.

Further, since the rigidity of each of the brushes is different between the upper roll pair and the lower roll, even if the object to be processed falls on the upper brush, it is collected by the lower brush. Therefore, the separation efficiency can be further improved.

Here, in order to achieve the above-mentioned object, according to another aspect of the present invention, a large number of sorting brushes are implanted to form a pair of substantially parallel cylinders by rotation, and formed by the pair of cylinders. A sorting roll to which the workpiece is dropped and supplied from above the cylindrical axial end portion; a drive motor for rotating each of the sorting rolls in a direction in which the dropped workpiece is flipped up in the valley; A diffusing means which is held at the workpiece supply position above one side in the axial direction of the roll and diffuses a falling position of the workpiece in the valley; A side plate that contacts the sorting brush above the sorting roll, and that discriminates a work piece having a light specific gravity that can be flipped up from a valley of the sorting roll and that is scooped up on both sides; a heavy ratio that cannot be flipped up by the sorting roll; Article to be treated is a structure of a sorting device, characterized in that slip through the screened brush in rotation.

With such a configuration, in the present invention, the object to be processed can be scattered along the axial direction of the sorting roll by the diffusion means, so that even if the object to be processed is not moved in the roll axis direction, The sorting range can be sufficiently ensured according to the shaft length, and the objects to be treated are prevented from hardening into one place and falling together. Further, since the object to be processed does not drop vertically on the axis of the rotating roll and gives an impact, no excessive load is applied to this axis, and the life of the apparatus can be extended. And, when the object to be treated that has fallen in the valley of the sorting brush is in a falling state with a momentum or specific gravity larger than the resistance force received from the rotation of the brush, it passes through it while colliding with the sorting brush, and is below the valley of the sorting brush. Will be stored. On the other hand, in the case of a falling state with a momentum or specific gravity smaller than the resistance force received from the rotation of the selection brush, the brush is flipped up by the selection brush, where it is scooped up by the side plate in contact with the selection brush. It is sorted by being moved to both sides of.

Here, the side plate may be provided with a comb-like tip portion which enters the brush at a portion in contact with the sorting brush. With such a tip shape, even if the object to be sprung up is slightly buried in the sorting brush, it can be reliably scooped up on the side plate. In addition, the comb-like tip portion may be curved in the axial direction of the sorting roll, and may be shaped to enter the inside of a cylinder formed by the rotating sorting brush. With such a shape, rake leakage can be substantially eliminated.

In the above-described sorting apparatus, the skirt disposed along the longitudinal direction of the sorting roll so as to substantially contact the rotating sorting brush at a position closer to the valley than the tip of the side plate. A configuration may be provided. By providing such a skirt, it is possible to restrict the object to be processed from falling near the center axis of the sorting roll. Further, for example, when an object to be processed, such as a piece of wood, whose long side and short side are significantly different in length is supplied, there is no consistency in the direction at the time of falling on the sorting brush, but the sorting brush When the skirt is flipped up by the rotation and hits the skirt, the long sides are aligned in the roll axis direction, and can be aligned in a direction that can be easily scooped up at the tip of the side plate. Then, the objects to be processed, which are aligned in this direction, pass under the skirt by the rotating force of the sorting brush, reach the side plate, and are moved to the side of the sorting brush.

[0019] The apparatus may further comprise a recovery means disposed further outside the side plate, for accommodating the objects selected by the plate, and for further selecting the objects having a predetermined size. it can. As such a collecting means, a basket-shaped one made of a net or a wire net of nylon or the like can be applied, and a bar arranged at a predetermined interval can be attached to the upper opening of the net. This is, for example, when the sorting brush should be supposed to pass through, the specific gravity is large and the shape is relatively large, that is, if a reusable workpiece such as stones is rebounded by the sorting brush, By sliding down the bar at a predetermined interval and dropping the bar to the outside of the cage, the bar can be merged with the passing amount of the sorting brush and collected as a product. At this time, a relatively large foreign matter (for example, a piece of wood) having a small specific gravity passes through the gap between the bars because of its elongated shape, and falls and stays on a cage-shaped object.
Collected. In addition, a relatively heavy and relatively small object to be processed and a relatively light and relatively small object to be processed fall down from the gap of the net of the collecting basket, and also merge with the passing amount of the sorting brush to be collected as a product. be able to. At this time, the object to be processed, which has a relatively small specific gravity and is relatively small, is originally a foreign substance, but its proportion is small and the degree of influence on the product is small.

[0020] The diffusion means may be a rotating diffusion roll which jumps the object to be processed by rotation and diffuses the falling position. As a configuration of the rotary diffusion roll, a brush is implanted at predetermined intervals around the axis and over the entire axial direction, and the workpiece is bounced off by a certain degree of brush elasticity and rotational force. At this time, the state of the object to be processed is different depending on the weight thereof. At both ends in the axial direction of the diffusion roll, guides can be provided to reliably drop the object to be processed between the valleys of the sorting brush.

Further, as the above-mentioned diffusing means, it is possible to use a chute having at least one sloping open-end slit which gradually widens and changes the drop position according to the size of the object to be processed. When a workpiece is supplied to such a chute, the workpiece rolls due to the inclination, and a small workpiece falls at a position where the interval between the slits is small, and a large workpiece falls as it moves to the tip. Therefore, the falling position can be diffused. In addition, since objects having substantially the same size fall at the same position, small objects are not hidden behind large objects and do not pass through the sorting brush. Furthermore, by making the falling height uniform, the falling speed to the sorting brush is also substantially the same, so that the sorting can be set more accurately and the sorting can be performed more accurately.

[0022]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1,
FIG. 2 shows a sorting plant according to the first embodiment of the present invention. In the drawing, a conveyor 1 for transporting a medium-granular processed material and an iron piece removing device 2 arranged at a position halfway of a supply chute 3 arranged at the transport end of the conveyor 1
And a vibrating sieve 4 arranged at the end of the supply chute 3
And a sorting device 5 according to the present invention disposed at the end of the vibrating sieve 4.

The description of the medium-granular material transport conveyor 1 will be omitted, but after passing through a process such as crushing in the process before being transported to the sorting device of the present invention, the particle size is further classified in advance. The processed material of 0 to 40 mm is sequentially conveyed to the sorting processing plant of the present invention.

The iron piece removing device 2 has a magnet pulley 6 whose magnetic attraction surface is deflected by the rotation of the magnetic attraction surface, a motor 7 for driving the rotation of the magnet pulley 6, An iron piece discharge chute 8 branched from the chute 3 in a V-shape is provided. When the processed material falling in the supply chute 3 touches the suction surface of the magnet pulley 6 shown by hatching in the figure, only the iron piece adheres to this surface, and then the rotation of the pulley 6 causes the iron piece discharge chute 8 to move to the iron piece discharge chute 8 side. When it moves, the magnetism disappears, and the iron piece separates from the pulley 6 and falls in the discharge chute 8 to be separated and collected at the collecting position.

The vibrating sieve 4 separates a processed material having a particle size of 0 to 20 mm, and a column 10 erected on the lower frame 9.
An upper frame 11 horizontally disposed on the upper part of the screen, a sieve 13 suspended from the upper frame 11 with a chain 12 slightly inclined to a feed side, and a vibrating vibrator which is disposed on the sieve 13 and vibrates the sieve 13 It has a motor 14 and a collecting chute 15 arranged below the sieve 13. Then, the vibrating sieve 4 vibrates the entire sieve 13 by driving the motor 14 so that only the required particles are dropped and collected in the chute 15, and the coarse particles that do not pass are sequentially sent to the downstream side. Like that.

The sorting device 5 includes a component having a large specific gravity, which can be reused for aggregates such as concrete pieces and stones, and a material such as papers and wood chips, among the processed products having a particle size of 20 to 40 mm. It is separated into components having a light specific gravity or a shape having a lot of catches. A support frame 16 fixedly arranged on the lower frame 9 so that the downstream side is inclined upward.
A pair of parallel sorting rolls 17 rotatably mounted at both ends on a support frame 16 and having one end positioned at a supply end, which is the terminal end of the vibrating sieve 4; Sorting brushes 18 planted around the periphery of
And a drive motor (not shown) for rotating the pair of sorting rolls 17 outward as shown by arrows in FIG.
A collecting chute 19a disposed immediately below both sorting rolls 17 and receiving a processed material having a high specific gravity;
7, a discharge chute 19b for receiving a processed material having a low specific gravity, and a side guide plate 21 for covering the side surfaces of both sorting brushes 18.

Although the particle size of 20 to 40 mm is supplied to the sorting device 5, the size is not limited to such a range, and the sieving boundary of the sieve 4 is about 5 mm. The upper limit may be a larger particle size. The sorting brush 18 is made of a hard nylon fiber bundle (in addition, vinyl chloride, polystyrene, etc.) or the like, and is spirally formed in the opposite direction to each other and is implanted on the outer periphery of each of the sorting rolls 17. , Form a substantially cylindrical pair by rotation, and each tip is set to the length of the pile which overlaps. By rotating the sorting brush 18 in a direction in which the processing object falling in the valley formed by the two sorting rolls 17 is flipped up, the processing object is held on the sorting brush 18 as if it were a screw conveyor. And transport them sequentially forward.

At this time, the processed material having a low specific gravity is sequentially moved forward by the action of the spiral shape along the sorting brush while floating in the valley of the two cylindrical sorting brushes 18, and is discharged to the discharge chute 19b. Is done. In contrast,
The processed material having a high specific gravity is elastically deformed in the valley of the sorting brush 18 and falls below the sorting brush 18, and is collected by the collecting chute 19a. Further, the processed material having a lower specific gravity is bounced toward the side guide covers 21, guided under the side guide covers 21, and can be distinguished and collected by the tray 22.

In FIG. 1, the sorting roll 17 has an inclined angle of an upper angle from the transport start end side to the transport end side. However, the sorting roll 17 can be held at a horizontal or lower angle attitude. Various settings can be made according to the speed and the separability. That is, in the case of a horizontal or downward angle, the transfer speed is high, but the separability is impaired. On the other hand, when it is directed upward, the separability is good, but the transfer speed becomes slow. Accordingly, by setting the angle in connection with the feed speed of the conveyor 1 and the processing speed of the vibrating sieve 4, the operation speed can be set in balance with each device, and the best separation performance can be obtained. Obtainable.

FIGS. 3 to 5 show a second embodiment of the present invention. In the drawings, the same components as those of the first embodiment are denoted by the same reference numerals, and only different portions or newly added portions will be described by using new reference numerals.

The sorting device 20 in FIG. 1 is disposed directly below the supply chute 3 at the end of the conveyor 1 and includes a lower frame 41 and a lower frame 4.
1, a support frame 23 having a front end bearing and a rear end tiltably connected by a jack 42;
3 parallel lower sorting rolls 24 bearing at both ends on the
And an upper sorting roll 2 having both ends bearing-mounted on a plurality of pairs of brackets 25 erected on the support frame 23
6 and sorting brushes 27 and 28 implanted on the outer periphery of each of the sorting rolls 24 and 26, and a drive for rotating each sorting roll pair outwardly with respect to each other via a belt and a pulley. It has a motor 29, an upper side guide plate 30 and a lower side guide plate 31, a collecting chute 32, and a discharging chute 33 arranged on both sides of each pair of sorting rolls 24 and 26.

In the present embodiment, the processing material supplied from the supply chute 3 by the pair of selection brushes 28 of the upper selection roll 26 by the driving of the motor 29 is received, rotated and conveyed to the front side while being rotated. The processed material that has dropped 38 is received by the sorting brush 27 of the lower sorting roll 24 and is also conveyed on the front side by its rotation, and the processed material is delivered to the lower sorting roll 24 at the final position of the upper sorting roll 26,
Each of them is sorted into a light specific gravity processed material and a heavy specific gravity processed material, and is dropped and collected in each of the chutes 32 and 33. In this manner, the two-stage arrangement of the upper and lower parts can further prevent the light specific gravity processed material from being mixed and dropped in the heavy specific gravity processed material.

Also, for this purpose, the upper and lower sorting brushes 2
The separation and recovery efficiency can be further improved by changing the stiffness and planting density of 7, 28 or changing the upper and lower transfer speeds by changing the pulley ratio or the motor rotation speed. For example, the upper sorting brush 28 may be made of a flexible material and / or have a low planting density, while the lower sorting brush 27 may be made of a hard material and / or have a high planting density. Even if the specific gravity treated material falls between the upper sorting brushes 28, it is collected by the lower sorting brush 27.

FIGS. 6 to 8 show a sorting apparatus according to a third embodiment of the present invention. The configuration of this embodiment will be described using this. In the sorting device 105, sorting rolls 117 are rotatably mounted on both ends of the support frame 116 held by the lower frame 109, and have one end positioned at a supply unit 114 connected to the end of the vibrating sieve 4. It is provided as a parallel pair. A large number of sorting brushes 118 having a substantially cylindrical shape by rotation are planted on the outer periphery of the two sorting rolls 117. FIG.
As shown by an arrow Z, a drive motor 1 for rotating a pair of sorting rolls 117 in a direction of entering from below into a valley M of both sorting rolls 117 so as to jump up a processing object to be thrown in.
50 are provided. That is, the processing object does not move in the axial direction of the sorting roll 117.

The position of the workpiece supply unit 112 above the valley of the sorting roll 117 is driven and rotated by the drive motor 138 to determine the drop position of the workpiece in the valley M in the axial direction of the sorting roll 117. Roll 13 that diffuses to
0 is held. Further, on each side of the sorting roll 117, there is provided a side plate 121 curved so as to cover the sorting brush 118, and one side of the side plate 121 is rotated above the sorting roll 117 along the axial direction.
18 and the other side is the support frame 11
6, the object to be processed having a light specific gravity, which is held by the side lower portion 125 and is flipped up by the sorting roll 117, is distributed to both sides.

Further, the diffusion roll 130 is provided with a pair of guide plates 132 so as to sandwich both ends of the shaft, and the workpiece supplied from the workpiece supply unit 112 is fed to the valley M of the sorting brush 118. It is regulated to drop it surely. The configuration of the diffusion roll 130 includes a brush 13 at a predetermined interval around the axis and over the entire axial direction.
4 are implanted on the center axis of rotation, and a cushioning material 136 is provided between the brushes 134 so as to hold the root portions of the brushes. A configuration in which a rubber plate is used instead of the brush 134 can be adopted.

On the other hand, the side plate 121 and the sorting brush 1
The length of the sorting roll 117 is set so as to be closer to or closer to the valley M than to the contact position with the roller 18 and farther from the valley M than to the guide plate 132. Skirts 114 arranged along the entire length in the direction are held on a support frame 116 corresponding to the respective sorting rolls 117. Further, a comb-like tip 123 is provided at a contact portion of the side plate 121 with the sorting brush 118 so as to enter the sorting brush 118. Also, the side plate 121
In a further outer position, the collection net 140 is supported by the support frame 116 and accommodates the object to be scooped up on the plate 121.

Next, the operation of the third embodiment will be described below. First, as for the particle diameter of the object to be treated, the same one as in the first embodiment can be treated.
Applies to a particle size of 40 mm. The workpiece supplied from the supply unit 112 is splashed and diffused by the brush 134 of the diffusion roll 130 rotated by the drive motor 136. A desired elastic force can be applied to the brush by the cushioning material 136, and the object is bounced off by the elastic force and a predetermined rotational force corresponding thereto. At this time, the state of the object to be processed is different depending on its weight, and the object is basically diffused by using the object. In addition, the direction of diffusion can be determined by the guide plate 132, and
The protrusion in the axial direction avoiding the seventh axis can be restricted.

Further, the cushioning member 136 not only gives a desired elastic force to the brush, but also prevents the object to be dropped into the gap of the brush 134 and gets into the gap, or hits the shaft of the diffusion roll 130 to cause a failure. It also has the effect of preventing.

The workpiece thus diffused falls toward the valley M of the sorting / sorting brush 118. At this time, since the position of the skirt 114 is almost on the center axis of the sorting roll 117, the workpiece is unlikely to be processed. Is restricted so as not to fall on the shaft even if it jumps over the skirt 114. When the object that has fallen into the valley M of the sorting brush 118 falls with a momentum or specific gravity greater than the resistance force received from the rotation of the sorting brush 118, it passes through it while colliding with the sorting brush, and sorts. Collected below the brush valley.

On the other hand, in the case of an object to be processed having a momentum or specific gravity smaller than the resistance force received from the rotation of the selection brush 118, the object is flipped up by the selection brush 118. This processed material collides with the lower end of the skirt 114 and is rebounded, and is re-populated again. Since the rotational force of the sorting brush 118 is constantly applied to such a processed material, the skirt 1
14 to be pressed against the lower tip.
While temporarily entering the sorting brush 118, the user passes through the lower end of the skirt 114. After that, it is scooped up by the comb-like tip 123 of the side plate 121 and collected by the collection net 140 on the side of the sorting roll 117.

Therefore, the position below the valley of the sorting brush 118 in which the object to be processed having a greater momentum or specific gravity is received than the resistance force received from the rotation of the sorting brush 118 is smaller than the resistance force received from the rotation of the sorting brush 118. The two types are selected based on the collection net 140 that accommodates the processing object having a small momentum or specific gravity.

As the collection net 140, a basket-shaped net made of a net such as nylon or a wire net can be applied. Further, bars 142 arranged at predetermined intervals can be attached to the processing object accommodating port on the upper part of the net. This occurs, for example, in that the sorting brush 118 which should normally pass through the sorting brush 118, has a large specific gravity and a relatively large shape, that is, a reusable workpiece such as a stone is bounced by the sorting brush 118. In this case, by sliding down on the bar 142 at the predetermined interval and dropping it outside the collection net 140, it merges with the amount passed through the sorting brush and is collected as a product. At this time, the foreign matter having a small specific gravity and a relatively large size (for example, a piece of wood) slips through the gap of the bar 142 because of its elongated shape, and thus is collected.
Dropped on 0, stayed and collected. Also, a relatively heavy and relatively small object to be processed and a relatively light and relatively small object to be processed fall down from the gap of the collection net 140, and also merge with the passing amount of the sorting brush 118 to be collected as a product. be able to. At this time, the object to be processed, which has a relatively small specific gravity and is relatively small, is originally a foreign substance, but its proportion is small and the degree of influence on the product is small. The bar 14
It is desirable that 2 has an angle enough to allow the object to slide down, but if space is difficult,
By vibrating the bar 142 with a vibrator (not shown), the processing can be performed without causing the object to be processed to stay.

If the same purpose is achieved without using such a bar 142, the net itself can have sieving capability. For example, as in the case of the recovery net 140 in FIG. 7, a surface into which the object to be processed enters is formed obliquely, a desired diameter is given to this part, and a small one can be sieved out of the net. . In the case where the further sorting is performed at the collection net position as described above,
The objects to be processed are sorted into three types and stored.

Here, the sorting brush 118 is made of a hard nylon fiber bundle (in addition, vinyl chloride, polystyrene, etc.) as in the first embodiment, and may be evenly planted on the entire surface. Spiral planting may be used if it is even. Further, the center distance of the sorting roll 117 is set so that each tip slightly touches or overlaps to some extent.

Then, by adjusting the resistance of the sorting brush 118, it is possible to change the selection condition of the processing object to be collected after passing through the sorting brush. As the adjustment of the resistance, the diffusion falling speed of the object can be changed by adjusting the height and rotation speed of the diffusion roll 130. In addition, one end of the resistance adjustment can be made by the rotation speed of the sorting roll 117, and in some cases, the distance between the axes can be appropriately adjusted even if the above assumption is broken. Further, the sorting brush 118
By selecting in advance the rigidity, planting density, brush diameter, etc.
Make the fit to the target workpiece more accurate. Specifically, a plurality of sorting rolls having different rigidities, diameters, and planting densities of the sorting rolls 117 may be prepared, and a selection sorting roll to be used may be selected according to conditions. In particular, they can provide a non-uniform condition across the brushes, for example, the diffuser roll 130 diffuses lighter workpieces farther and heavier workpieces closer. The distribution of diameter and planting density can be determined.

The skirt 114 can be configured without the skirt 114. In this case, however, the risk of falling of the processed material onto the sorting roller 117 increases, and at the same time, the processed material gets caught in the brush near this shaft. There is a possibility. Furthermore, an object whose processed object has a long side and a short side (for example, a piece of wood)
In this case, there is no consistency in the direction at the time of falling on the sorting brush, so that the short side may enter between the combs of the comb-like tip 123 and cannot be scooped up on the side plate 121 in some cases. is there. Therefore, a preferable configuration is to install the skirt 114. When the object to be processed is pressed against the tip of the skirt 114, the direction of the object is changed, and the long side is changed to the skirt 114.
, And in this state, it passes through the skirt 114 and reaches the upper end 123 on the comb. In other words, the long side comes into contact with the top end portion 123 of the comb so that the comb can be reliably scooped up. As a material of the skirt 114, at least a tip portion is preferably made of an elastic or flexible material also for absorbing an impact of an object to be processed, and rubber and resin can be used.

Also, the comb-like tip 1 of the side plate 121
23 can be in the shape of a rake curved in the axial direction of the sorting roll 117, and can be in a state of being inside the cylinder formed by the rotating sorting brush. With such a shape, rake leakage can be substantially eliminated. As the material, metal, resin, rubber and the like can be used. On the other hand, a configuration without the comb-like tip portion 123 can be adopted, but if the object to be sprung up is slightly buried in the sorting brush 118, the object to be processed is surely placed on the side plate. Can not be picked up on the side plate 121
There is also a possibility that the material may enter between the screen and the sorting roll 117.

FIG. 9 is a perspective view showing the relationship between the main parts of a sorting device according to a fourth embodiment of the present invention. Here, instead of the diffusion roll 130, a chute 200 having two gradually-opened front-opening slits 202 having an inclination is provided.
Is arranged. When an object to be processed is supplied to such a chute 200 from an arrow X, the object to be processed rolls due to the inclination,
At the position where the opening interval of the slit 202 is small, a small object to be processed falls in the valley of the sorting brush 118, and a large object falls as it moves to the tip. Therefore, the drop position can be diffused depending on the size of the processing object. Subsequent processing steps collect the processing object similarly to the third embodiment.

Therefore, since objects having substantially the same size fall at the same position, it is possible to prevent the small object from passing through the sorting brush 118 behind the large object.
Further, by making the falling height uniform, the falling speed to the sorting brush becomes almost the same, so that the sorting setting for sorting can be made clearer, and sorting can be performed more accurately.

In the present invention, the effect is more exerted when a mixture having a large specific gravity is mixed. For example, when an empty bottle and a can are mixed, it is possible to almost completely sort. Here, in each of the above embodiments, the sorting device is used in a state of being placed on the floor. In such a form, the object to be processed is often sorted and accommodated at a position below the sorting apparatus, and thus the sorting apparatus itself becomes an obstacle when the object to be processed is taken out after sorting, for example. Therefore, as another form, from the viewpoint of easy removal of the object to be processed, the sorting apparatus itself is installed in a suspended state away from the floor surface to facilitate movement of the storage tray disposed thereunder. It can be. Further, a transport conveyor for the sorted products may be provided instead of the tray.

It is to be noted that, as the object to be treated, the crushed
In the case of treating construction waste materials including concrete pieces and wood pieces contained in a particle size of 40 mm in an amount of about 60 t / h, the following values should be given to the main parts of the sorting apparatus of the present invention as setting examples. Can be. However, it is not limited to these.

[0053]

As is apparent from the above description, the sorting apparatus according to the present invention has the following advantages. The transport length can be sufficiently secured according to the axial length of the sorting roll, and the separating operation is performed while being sent to the leading side in the rotation direction along the spiral shape of the sorting brush, so that the separation and collection efficiency can be improved. By arranging the sorting roll pairs in parallel in upper and lower stages, finer sorting work is possible, and the rigidity of each sorting brush differs between the upper sorting roll pair and the lower one, so that the processed material is on the upper side. Is separated by the lower selection brush even after passing through the selection brush, whereby the separation efficiency can be further improved. Since the processing object is diffused and introduced in the longitudinal direction of the selection roll axis by the diffusion means in a form in which the processing object does not move in the axial direction of the selection roll, the separation and collection efficiency can be improved. Further, the life of the sorting roll shaft can be extended by dispersing the processing object on the sorting roll surface and making the structure such that the processing object does not drop directly on the sorting roll shaft.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a processing plant incorporating a sorting device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view of a sorting device according to a second embodiment of the present invention.

FIG. 4 is a plan view of the sorting device of FIG.

FIG. 5 is a front view of the sorting device of FIG.

FIG. 6 is a side view of a sorting device according to a third embodiment of the present invention.

FIG. 7 is a plan view of the sorting device of FIG.

FIG. 8 is a front view of the sorting device of FIG.

FIG. 9 is a perspective view showing a main part of a sorting device according to a fourth embodiment of the present invention.

[Explanation of symbols]

 5, 20, 105 Sorting device 17, 24, 26, 117 Sorting roll 18, 27, 28, 118 Sorting brush 29, 138, 150 Driving motor 19a, 32 Collection chute 19b, 33 Discharge chute 21, 30, 31 Side guide plate 114 Skirt 130 Diffusion roll 121 Side plate 140 Recovery net 142 Bar

Claims (12)

[Claims] 1. A large number of sorting brushes (18, 27, 28)
Are formed to form a pair of substantially parallel cylinders by rotation, and a sorting roll (17, 2) to which the object is dropped and supplied from above the cylindrical axial end portion between the valleys formed by the pair of cylinders
A drive motor (29) for rotating each of the sorting rolls (17, 24, 26) in a direction in which a workpiece to be dropped and fed is flipped up in the valley; and the sorting rolls (17, 24, 26). 26) a tray (22) arranged on the side surface of the sorting roll for distinguishing and guiding the object to be bounced to the side of the sorting roll, wherein the brush (18, 27, 28) supplies the object to be processed. In the form of a spiral from the side toward the opposite end, the workpiece is planted on the outer periphery of each of the sorting rolls (17, 24, 26), and a workpiece heavy enough to be unsupported by the rotation of the spiral is placed below the sorting roll. The sorting device (5, 20), characterized in that the object to be processed, which is dropped and supported, is moved to the tip of the sorting roll by rotation of the spiral. 2. The sorting device (20) according to claim 1, wherein the pair of sorting rolls (24, 26) are arranged in parallel in a plurality of upper and lower stages. 3. The sorting device (5, 20) according to claim 1, wherein the pair of the sorting rolls (17, 24, 26) is adjustable in angle with respect to a horizontal plane. 4. The sorting device (20) according to claim 2, wherein the rigidity of the sorting brush (27, 28) is different between the upper roll (26) and the lower roll (24). ). 5. A large number of sorting brushes (118) are implanted to form a pair of substantially parallel cylinders by rotation, and a valley M formed by the pair of cylinders is processed from above the cylindrical axial end. A sorting roll (117) to which an object is dropped and supplied; a drive motor (150) for rotating each of the sorting rolls (117) in a direction in which an object to be dropped and fed is flipped up in the valley M; 117) A diffusion means (130, 200) which is held at the workpiece supply position (112) above one side in the axial direction and diffuses the falling position of the workpiece in the valley M.
And disposed on each side of the sorting roll (117),
A side plate that comes into contact with the sorting brush (118) above the rotating sorting roll (117) and that lifts up a light-weight specific material to be lifted up from the valley M of the sorting roll (117) on both sides to distinguish the side plate. (121), wherein an object to be processed having a heavy specific gravity that cannot be jumped up by the sorting roll (117) passes through the rotating sorting brush (118). 6. The sorting device according to claim 5, wherein the side plate (121) has a comb-shaped tip (123) that enters the sorting brush (118) at a portion where the brush contacts the sorting brush (118). 7. A cylindrical inner portion formed by a rotating brush (118), wherein a comb-like tip (123) of the side plate (121) is curved in the axial direction of the sorting roll (117). The sorting device according to claim 5, wherein the sorting device has a shape in which it enters. 8. The brush (11) rotating at a position closer to the valley (M) than the tip of the side plate (121).
8) so as to substantially contact the sorting roll (11).
Skirt (114) arranged along the longitudinal direction of 7)
The sorting device according to any one of claims 5 to 7, further comprising: 9. A collecting means (140) arranged further outside the side plate (121) for accommodating the objects to be treated selected by the plate (121) and further sorting the objects to be treated having a predetermined size. The sorting device according to claim 5, further comprising: 10. The sorting apparatus according to claim 5, wherein said diffusion means is a rotary diffusion roll (130) for bouncing an object to be processed by rotation and diffusing a falling position. 11. A guide plate (132) according to claim 10, characterized in that guide plates (132) are provided at both ends in the axial direction of said diffusion roll (130) to reliably guide an object to be processed in said valley. Sorting device. 12. A slit (202) in which said diffusing means has at least one gradually widened slope with a slope.
10. The sorting apparatus according to claim 5, wherein the chute is a chute that changes a drop position according to a size of an object to be processed.