JP2574615B2 - Solid waste separation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation processing system, and more particularly to a solid waste separation processing system for separating a group of solid waste.

[0002]

2. Description of the Related Art Solid wastes, including construction wastes, are separated for the purpose of reusing materials from the viewpoint of environmental protection. These sorting processes are performed in a waste treatment plant having a solid waste sorting system. The sorting system is provided with a mechanical sorting unit for sorting waste according to the shape and specific gravity difference of the solid waste, and a manual sorting unit mainly using manual sorting.

[0003] The manual separation section includes a belt conveyor for transporting a group of solid wastes, a work stage for locating an operator who separates the group of solid wastes from the group of solid wastes on the belt conveyor, and a separation stage. There is already a pit group for storing pits. The pit group is located directly below the belt conveyor and work stage,
The upper end has a hole that opens upward.

[0004] An operator puts the separated material picked up from the belt conveyor into a pit through a hole.

[0005]

In the above-mentioned conventional solid waste sorting system, it is difficult to secure a large capacity because the pit group is disposed immediately below the belt conveyor and the work stage. It is also difficult to increase the number of pits. That is, in the above-described conventional configuration, the degree of freedom in the subsequent stage is lower than that in the sorting unit.

An object of the present invention is to increase the degree of freedom of the subsequent stage.

[0007]

SUMMARY OF THE INVENTION A sorting system according to the present invention is for sorting solid wastes. The system comprises a first conveyor section capable of transporting a group of solid wastes, and a first conveyor arranged beside the first conveyor section.
An operator who separates separated materials from the solid waste group on the bare part
Work stage for positioning and below the work stage
It is arranged crossing the 1st conveyor part and can transport separated materials
A second conveyor section.

[0008]

In the sorting system according to the present invention, an operator located on the work stage sorts the solid waste group in the first conveyor section and places the obtained separated article on the second conveyor.
The second conveyor conveys the separated material to a subsequent stage composed of, for example, pits or the like. Here, since the second conveyor receives and transports the separated materials, the degree of freedom regarding the position and size of the subsequent stage is increased.

[0009]

1 and 2, a construction waste treatment plant 1 according to an embodiment of the present invention includes a storage unit 2 for storing a solid waste group composed of construction waste materials and the like, and a storage unit. And a second conveyor connected to the first conveyor unit 3 for receiving the solid waste group input from the second conveyor unit 3.
The conveyor unit 4, a magnetic separator 5 disposed above the downstream end of the second conveyor unit 4, a third conveyor unit 6 composed of a group of conveyors orthogonal to the second conveyor unit 4, and the third conveyor unit 6 A pit 7 for treating the separated waste being conveyed, a sieve 8 connected to the downstream end of the second conveyor 4, and a fourth conveyor connected to the downstream end of the sieve 8 And a wind separator 10 connected to the downstream end of the fourth conveyor 9.

The storage section 2 is formed of a substantially flat ground, and can store a group of solid wastes dropped from a transport vehicle such as a dump truck in a mountain shape. In the storage unit 2, the solid waste group is pushed out in the direction of the arrow (injection direction) using a bulldozer or the like. The first conveyor unit 3 is disposed adjacent to the storage unit 2 and its transport direction (rightward in the figure).
Is perpendicular to the charging direction of the storage unit 2. The first conveyor section 3 includes three belt conveyors 11, 12, and 13 having a rubber annular belt. The belt conveyors 11, 12, and 13 are arranged parallel and horizontally to each other, and are each arranged at the bottom of a groove 14 formed on the ground as shown in FIG.

In each of the belt conveyors 11, 12, and 13, a group of solid waste put in from the storage unit 2 is placed on a side of the side away from the storage unit 3.
A guide plate 15 for leading to 13 is attached.
The guide plate 15 extends upward along the side wall surface of the groove 14,
Furthermore, it extends above the storage part 2. As the belt conveyors 11, 12, and 13 move forward in the charging direction of the storage unit 2, the amount of extension increases. That is, the upstream end of the belt conveyor 12 is disposed between the upstream end of the belt conveyor 11 and the second conveyor unit 4. The upstream end of the belt conveyor 13 is
It is arranged between the upstream end of the belt conveyor 12 and the second conveyor section 4. Also, as is clear from FIG.
Each guide plate 15 is provided on the belt conveyors 11, 12 and 13 at a portion exposed to the storage section 2 in the charging direction.

With this configuration, the solid waste group input from the storage unit 2 is transferred to three belt conveyors 11, 12, 13
Therefore, the efficiency of transporting the solid waste group to the second conveyor unit 4 can be increased. In addition, the guide plate 15 can prevent the solid waste group that has been charged from the storage unit 2 into each of the belt conveyors 11, 12, and 13 from overflowing.

The second conveyor section 4 is disposed such that its upstream end overlaps the downstream end of the first conveyor section 3 at a lower position. The second conveyor section 4 has belt conveyors 16, 17, and 18 arranged parallel and horizontally to each other. Each of the belt conveyors 16, 17, and 18 has an annular belt made of rubber, and is configured on an extension of the belt conveyors 11, 12, and 13 in plan view.

The transport speed of the belt conveyors 16, 17, 18 is set to be higher than the transport speed of the belt conveyors 11, 12, 13. For example, belt conveyor 1
The transport speed of the belt conveyors 16, 17, 18 is set at 8.0 m / min, and the transport speed of the belt conveyors 1, 12, 13 is set at 2.5 m / min. It is desirable that the conveying speed of the belt conveyors 16, 17, 18 is at least twice the conveying speed of the belt conveyors 11, 12, 13. The speed value and the speed ratio can be set and changed by a controller (not shown).

Here, the belt conveyors 11, 12, 1
Belt conveyor 1 than the transport amount per unit time of 3
Since the transport amount per unit time of 6, 17, 18 is large, the layer of solid waste on the belt conveyors 16, 17, 18 is thinner than the layer of solid waste on the belt conveyors 11, 12, 13. . Therefore, the solid waste group conveyed by the first conveyor unit 3 can be developed on the belt conveyors 16, 17, and 18 of the second conveyor unit 4 to a thickness that facilitates manual selection.

A stage 19 is formed beside each of the belt conveyors 16, 17, 18. Stage 19
It may be a scaffold assembled on the ground or a level ground flat. Worker is stage 1
9 and perform a manual sorting operation. As shown in FIG. 4, the magnetic separator 5 includes a pair of rollers 21 and 21 and the rollers 2 and 21.
1, 21 and a thin film belt 22 and a roller 21
And a plurality of magnets 23 disposed above the lower running surface of the thin film belt 22 between them. The magnetic separator 5
5 on the downstream end of each belt conveyor 16, 17, 18
They are arranged at a distance of about 0 cm. The belt conveyor 22 is disposed so as to be orthogonal to the belt conveyors 16, 17, 18, and has a downstream end protruding laterally from each of the belt conveyors 16, 17, 18. Also,
The magnet 23 is not arranged at a position corresponding to the protruding portion of the belt 22.

The third conveyor section 6 is located below the second conveyor section 4 and is arranged in a direction orthogonal to the second conveyor section 4. The third conveyor section 6 is arranged so that its upstream portion overlaps the second conveyor section 4 at a lower position. The third conveyor section 6 has belt conveyors 24 to 29 arranged in parallel and horizontally to each other. Each of the belt conveyors 24 to 29 has an annular belt made of rubber. The downstream ends of the belt conveyors 24 to 29 are arranged in corresponding pits of the pit portion 7.

The belt conveyor 24 among the belt conveyors 24 to 29 is for conveying waste plastic. The belt conveyor 25 is for transporting a relatively large remaining material. The belt conveyor 26 is for transporting scrap. Belt conveyor 27
Is for conveying cardboards. The belt conveyor 28 is for transporting a relatively large combustible material. The belt conveyor 29 is for transporting the metals sorted by the magnetic separator 5.

The pit section 7 is composed of a plurality of processing pits 31 to 36 divided on three sides by partition walls. The pit 31 has the downstream end of the belt conveyor 24, the pit 32 has the downstream end of the belt 25, the pit 33 has the downstream end of the belt conveyor 26, and the pit 34 has the belt conveyor 27.
The pit 35 is provided with the downstream end of the belt conveyor 28, and the pit 36 is provided with the downstream end of the belt conveyor 29. Pit 3
1 is provided with a crusher 31a for crushing waste plastic, and a pit 34 is provided with a compressor 34a for compressing cardboards.

The sieving unit 8 includes a vibrating sifter 37 and a belt conveyor 38 for guiding the sifter under the vibrating sifter 37 to the pit 7. The fourth conveyor section 9 is located below the vibrating sieving machine 37 and is arranged on an extension of the second conveyor section when viewed in plan. The fourth conveyor section 9 is arranged so that its upstream portion overlaps the vibrating sieving machine 37 below, and guides the upper part of the vibrating sieving machine 37 to the wind separator 10. The fourth conveyor section 9 has belt conveyors 40, 41, and 42 arranged in parallel and horizontally to each other. Belt conveyor 4
0, 41, 42 have a rubber annular belt,
Its downstream end is located on the wind separator 10.

As shown in FIG. 5, the wind separator 10 has a tapered inlet 50 disposed at the upper end, a duct 51 extending downward from the inlet 50, and a blowable air inside the duct 51. And a pair of blowers 53. Duct 51 is divided by a heavy load passage duct 51a.
And a light-weight passage duct 51b. The partition wall has an air outlet 54 at a position facing the outlet of the blower 53.
a and 54b are provided.

The blower 53 has an air outlet 54 in a substantially horizontal direction.
Air is ejected toward a and 54b. Further, the heavy article passage duct 51a is provided with a step 52 for reducing the falling speed of the solid waste and promoting the separation of the solid waste. Heavy object passage duct 51
a and a lower end of the light-weight passage duct 51b are a non-combustible discharge port 56 for discharging the incombustible material selected by the wind and a combustible discharge port 55 for discharging the combustible material.

Next, the operation of treating solid waste in the construction waste treatment plant 1 will be described. First, a solid waste group is placed in the storage unit 2 by a dump truck or the like. The placed solid waste group is the first by a bulldozer or the like.
It is put into the conveyor unit 3. At this time, since the guide plate 15 is attached to the upstream end of each of the belt conveyors 11, 12, and 13 on the side away from the storage section 2, it is excessively pushed into the groove 14. Overflow of the solid waste group is prevented.

Each belt conveyor 1 of the first conveyor section 3
The solid waste groups placed on 1, 12, and 13 are transported to the second conveyor unit 4 at a transport speed of, for example, 2.5 m / min. In addition, since the belt conveyors 11, 12, and 13 are arranged horizontally, a driving force for pulling up the solid waste group, which is conventionally required, is unnecessary. next,
The solid waste group is stored in each belt conveyor 1 of the first conveyor section 3.
The first, second, and third belts fall onto the respective belt conveyors 16, 17, and 18 of the second conveyor unit 4.

There, the belt conveyors 16, 17, 1
8 is set to, for example, 8.0 m / min, and even if the solid waste group is piled high in the first conveyor section 3, the belt conveyors 16, 1
On 7 and 18, it is developed to a thickness suitable for manual selection. Thereby, the worker on the scaffold 19 can easily perform the sorting operation.

The solid waste taken out in the sorting operation is dropped onto each of the six belt conveyors 24 to 29 of the third conveyor section 6 arranged below, and each pit 31 to 36 of the pit section 7 is dropped. Respectively. In this configuration, since the second conveyor section 4 intersects with the third conveyor section 6, the separated material can be easily dropped into the third conveyor section 6. Therefore, the sorting operation can be easily performed.

On the other hand, at the upstream end of the second conveyor section 4, metal pieces are removed from the solid waste by the magnetic separator 5 arranged above. Here, the metal piece adheres to the lower surface of the thin film belt 22 by the magnet 23 and falls above the conveyor 29. The metal pieces dropped on the belt conveyor 29 are stored in the pits 36. Further, the solid waste passes through the sieve section 8. There, the solid waste is vibrated sieve 3
7 and falls below the sieve of 10 mm or less onto the belt of the belt conveyor 38. The waste on the sieving machine 37 (on the sieving machine) is fed into the wind separator 10 via the fourth conveyor section 9.

The waste put in from the inlet 50 in FIG.
It is guided to the duct 51a and collides with the upper step 52a.
At this time, the combustibles such as plastics, papers and wood chips mixed in the waste are decelerated and separated to some extent. Furthermore, the glass is guided to the duct 51a and the blower 53
Pass in front of the air outlet. At this time, the combustibles that are easily affected by the wind force in the wind are blown off by the wind pressure, and are separated from the air outlet 54a to the adjacent duct 51b. In addition, the gala undergoes the same sorting again by the step 52b and the blower 53b arranged below. As a result, the solid waste sorted from the combustible material discharge port 55 and the noncombustible substance discharge port 56 is collected.

[0029]

The sorting system according to the present invention has the following features.
Since it is provided with the second conveyor arranged crossing the conveyor and the work stage provided near the intersection of the first and second conveyors, the separated material separated by the first conveyor is received by the second conveyor. Can be transported. For this reason, it is possible to increase the degree of freedom at a later stage than in this separation processing system.

[Brief description of the drawings]

FIG. 1 is a plan view of a construction waste treatment plant employing one embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a schematic configuration diagram of a magnetic separator.

FIG. 5 is a schematic configuration diagram of a vertical cross section of the wind power sorting device.

[Explanation of symbols]

 4 Second Conveyor Part 6 Third Conveyor Part 16-18 Belt Conveyor 19 Stage 24-29 Belt Conveyor

Claims (1)

(57) [Claims] 1. A solid waste sorting system for separating a solid waste group to obtain a separated product, comprising: a first conveyor section capable of transporting the solid waste group; and a first conveyor section. Of the first conveyor
(A) An operator who separates the separated materials from the solid waste group on the section
A work stage for positioning, and intersecting the first conveyor section below the work stage
Second conveyor unit which is arranged at a position and can transport the separated material
And a solid waste separation treatment system.