JPH1190332A - Sorting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the coexisting of a lightweight treated material to a heavyweight treated material or the coexisting of the heavyweight treated material into the lightweight treated material, to improve the separation and recovery efficiency and to prolong the service life of a device. SOLUTION: This sorting device is arranged between the supply end and discharge end of a material to be treated, lots of brushes 10 faced to an upper part are radially implanted in the peripheries of the plural pairs of disks 7, 8 and 9 faced to each other and mutually inclined toward the directional line to convey a material to be treated, the respective disks 7, 8 and 9 are mutually faced and rotated toward the supply end, the treated material having high-sp.gr. is received by a recovery chute 14 arranged directly below the respective disks 7, 8 and 9 and the treated material having low-sp.gr. is received by a discharge chute 15 arranged below the tip of the terminal disk 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting apparatus suitable for dry sorting of powders having different specific gravities.

[0002]

2. Description of the Related Art For example, waste materials of construction waste such as concrete waste materials need to be further separated.
The components contained in these concrete waste materials include non-combustible materials that make up the concrete body such as concrete pieces, stones, earth and sand, and reinforcing bars, as well as waste such as wood chips, cans, environs, vinyl, waste, plastic, and paper. Flammable materials.

[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 a mechanical sorting method, an ink line method, a vibrating wind force sorting method, an inclined type sorting machine, and a rotating brush method are known. Among them, the ink line type is a separation type using an inclined conveyor and a rotary chain curtain. The vibratory wind-type sorting method is a method of loosening and sucking a processed material by vibrating action, and a tilting type sorter is a method of separating a material that is easily rolled and a material that is hardly rolled by a roll with an ascending gradient.

A rotary brush type sorter is disclosed in
As shown in Japanese Patent Application Laid-Open No. -5768, when a processing object is dropped on a brush, a light processing object is carried in a tangential direction by the rotating brush, and a processing object having a high specific gravity is rotated. This is a sorting method that utilizes the fact that the brush falls from the gap between the brushes.

However, in the various sorting methods except the rotary brush type, the apparatus itself is expensive, and when it is installed on existing equipment, large equipment remodeling is required, installation space is large, and land needs to be secured. 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. .

[0008]

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.

[0009] More specifically, the light-weight processed material usually conveyed on the brush is conveyed in the rotation direction on the brush, but may be left between the brushes due to the sliding of the brush. Also called so-called foul chips,
There is a case where the tip of the rotating brush or the jumping between the rotating brushes may jump.If a heavy object falls on the rotating brush while this state is maintained, it will fall with the heavy object,
This caused the separation and recovery rate to drop. Conversely, heavy processed materials having a large specific gravity but finely crushed are also carried by the brush together with the light-weight processed materials, which also causes a reduction in the separation and recovery rate.

[0010] Further, since the loaded workpiece is conveyed so as to intersect with the axis of the rotating brush, in particular, the falling load of the workpiece is directly applied to this axis during loading. Occurs frequently. When such loads overlap, the shaft and the bearing are easily damaged, and the life of the device is shortened.

The present invention has been made to solve the above problems, and an object of the present invention is to increase the transport length so that light-weight products can be mixed with heavy-weight products and heavy-weight products can be reduced to light-weight products. It is intended to provide a sorting apparatus capable of preventing the mixture of water and improving the efficiency of separation and recovery.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of pairs of workpieces disposed between a supply end and a discharge end of a workpiece and inclined with respect to a workpiece transfer direction line. Facing disks, a number of brushes radially implanted obliquely upward on the outer periphery of each disk, a drive motor for rotating each disk toward the supply end side, and disposed directly below each disk The sorting apparatus is configured to include a collecting chute for receiving a processed material having a high specific gravity, and a discharging chute disposed at a lower end of a pair of disks located at the end and receiving a processed material having a low specific gravity.

With the above arrangement, the processing objects are sequentially fed in the tangential direction of the rotating brushes, and are sequentially delivered to the next brush. During this feeding operation, the heavy specific gravity processed material is
It falls from between the brushes and is collected by the collection chute, and only the remaining light specific gravity processed material is sent to the discharge chute between the brushes. Further, since the workpiece is fed in the tangential direction of the brush, the processed object does not hit the rotating shaft.

[0014] Further, the rotation speed of each pair of disks is different, or the planting density, rigidity, and length of bristle of the brush are different for each pair of disks, so that the characteristics change to each pair. And a sorting action corresponding to this can be performed.

Further, the pair of disks is rotatably supported in a row on a pair of parallel support frames, and the support frames are connected and fixed on the lower frame so as to be adjustable in the front-rear direction. The transfer speed and the recovery rate can be adjusted according to the angle.

[0016]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1
FIG. 3 shows a brush type sorting apparatus according to the present invention. In the figure, a sorting device 1 is disposed below a supply chute 3 at the end of a workpiece transport conveyor 2, and has a lower frame 4 formed in a frame shape and a lower end portion of the lower frame 4. A pair of parallel support frames 6 rotatably supported and having rear ends fixed by jacks 5 so as to be adjustable in height.

The two support frames 6 are arranged so as to be inclined inward from each other (in the direction of transporting the workpiece) when viewed from the front, and have first, second, and third disks, respectively, from the supply side to the discharge side. 7, 8, 9 pairs form a line on both support frames 6,
The bearings are rotatably supported in an inclined state toward each other (in the direction of transporting the workpiece) when viewed from the front.

A large number of brushes 10, which are inclined toward the upper side and extend radially from the center, are planted on the outer circumference of the pair of disks 7, 8, 9 and face each other. Alternatively, the brushes 10 are arranged so that the tips of the adjacent brushes 10 slightly overlap each other.

The shaft portions 7a, 8a, 9a of the disks 7, 8, 9
Of the first disk 7 is connected to a driving motor 13 by a belt 11 and a pulley 12, and the shaft 7a of the first disk 7 is connected to a driving motor 13. , 8, and 9 respectively rotate from the supply side to the discharge side as shown by arrows.

Further, in a box-shaped space defined by the lower frame 4 and the support frame 6, a collecting chute 14 for collecting heavy and specific gravity processed materials is disposed, and a discharging chute 1 is provided at a tip thereof.
5 are arranged.

In the above configuration, the processed material conveyed on the conveyor 2 is crushed in advance by a crusher or the like in a pretreatment step, and is separated into particles having a particle diameter of about 0 to 4 mm from which metals such as iron pieces have been removed. For example, reusable materials having a specific gravity such as concrete blocks and aggregates, and foreign materials having a light specific gravity which cannot be incinerated or discarded such as wood chips and plastics are mixed.

The sorting device 1 sorts the above-mentioned heavy and specific gravity processed material and the light foreign matter mixed therein, and the processed material falling from the supply chute 3 is a pair of brushes 1 of the first disk 7.
It falls between 0 and is transported in the tangential direction by the rotation of both disks 7. In addition, although it is configured not to fall on each disk 7 as much as possible, even if it falls, it moves around by centrifugal force and eventually rides on the brush 10.

Of the processed materials on the brush 10, the heavy / gravity processed material falls down along the gap between the brushes, is captured and recovered in the recovery chute 14, and can be reused therefrom such as aggregates. It is moved and accumulated in stock yards etc. that are appropriate as resources.

The lightweight foreign matter is held in a maze-shaped space due to the entanglement or overlap of the brushes 10, and is transferred to the pair of brushes 10 of the second rotating disk 8 by the rotational force of the brushes. Carried tangentially. Since the moving direction is the same as the tangential direction of the rotation, the movement is smooth.

Further, the brush is transferred to the pair of brushes 10 of the third disk 9 by the same action. However, at this end position, light foreign matter is generated by the action of rotation and elastic deformation of the brush 10 when the brush 10 is released from entanglement. Is quickly released from the entanglement,
It is dropped and collected in the form of being thrown into the discharge chute 15.

Therefore, in the present embodiment, sorting is performed in three stages, and the transfer length is longer than that of the prior art, so that the recovery rate can be improved. In this embodiment, three pairs of disks are used, but more disks may be used. In this case, since the moving length is further increased, the recovery rate can be further increased.

Further, since the falling direction of the object and the rotating direction of the brush intersect with each other, when the object having a high specific gravity falls, the brush is rotated so as to rub against the object from the lateral side of the drop. Therefore, it is possible to reduce the possibility that a lightweight object is hung and dropped.

As another means for further improving the recovery rate, the rotation ratio of the pulley 12 is changed so that each disk 7,
By changing the rotation speed of 8, 9 or changing the density and rigidity of the brush 10 implanted on each of the disks 7, 8, 9 or the length of the bristle feet, etc., as appropriate, good.

For example, if the rotational speeds of the disks 7, 8, 9 are different, the above-mentioned phenomenon such as a foul chip is unlikely to occur. In addition, it also leads to an improvement in the capture rate of lightweight objects that pass through between the brushes separated by heavy objects.

Further, when the planting density of the brush is high, a brush having a large diameter is difficult to fall down. When the rigidity is high, it is difficult to fall down unless the specific gravity is sufficiently high. In addition, if the hair is long, even if it is blown off by centrifugal force,
Since it is trapped at the tip, it can be prevented from scattering around. Therefore, in consideration of the above characteristics, each disk 7, 8, 9
If the characteristics are changed by adding these variables, an optimum recovery rate can be obtained.

Further, in this embodiment, the support frame 6 is fixed with the support frame 6 slightly inclined forward toward the discharge side. However, this form is not fixed and can be changed by adjusting the jack 5. In the illustrated forward tilted posture, the movement is promoted by the forward tilted posture in addition to the transport force by the rotation of the brush 10.
In the horizontal direction, the feed speed is determined according to only the rotation speed of the brush, and in the backward tilted posture, the feed speed is reduced contrary to the rotation.

However, if the conveying speed is too high, the separation / recovery rate will be reduced. If the conveying speed is low, the processing capacity will be reduced. The inclination angle of the support frame 6 can be selected.

[0033]

As is apparent from the above description, in the sorting apparatus according to the present invention, the processing objects are sequentially fed in the tangential direction of the rotating brushes, and are sequentially delivered to the next brush. During operation, the heavy specific gravity object falls from between the brushes and is collected by the collection chute, and the brush traverses immediately after falling, and the light specific gravity object is passed between the brushes and sent to the discharge chute. Therefore, the recovery rate can be improved while sharing the advantages of the conventional brush type sorting apparatus. Also, since the processed material does not fall on the rotating shaft of the brush, the damage to the bearing is reduced,
The device life can be extended.

[Brief description of the drawings]

FIG. 1 is a side view showing a sorting device of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sorting apparatus 4 Lower frame 6 Support frame 7, 8, 9 Disk 10 Brush 13 Driving motor 14 Recovery chute 15 Discharge chute

Claims (4)

[Claims] 1. A plurality of pairs of opposed disks (7, 8, 9) arranged between a supply end and a discharge end of a processing object and inclined with respect to a processing object transfer direction line, and each disk (7). , 8,
Numerous brushes (10) radially implanted obliquely upward on the outer periphery of 9) and a drive motor (13) for rotating the disks (7, 8, 9) toward the supply end side with respect to each other.
And a collecting chute (14) disposed immediately below each of the disks (7, 8, 9) and receiving a processed material having a high specific gravity, and a collecting chute (14) disposed at the lower end of a pair of disks (9) located at the terminal end. A discharge chute (15) for receiving a lightly processed material. 2. The sorting device according to claim 1, wherein the rotation speed of each pair of the disks (7, 8, 9) is different. 3. The planting density, rigidity, and strength of the brush (10).
3. The sorting device according to claim 1, wherein the length of the bristle feet is different for each pair of disks (7, 8, 9). 4. A pair of said discs (7, 8, 9) is rotatably bearing in a row on a pair of parallel support frames (6), and the support frames are mounted back and forth on a lower frame (4). The sorting device according to any one of claims 1 to 3, wherein the sorting device is connected and fixed so as to be adjustable in inclination.