JPH0768243A - Solid waste classifying treatment apparatus - Google Patents

Abstract

PURPOSE:To enhance the rate of operation and the operation efficiency in the feed of solid waste of a belt conveyor by making the belt conveyor hard to damage and facilitating maintenance work. CONSTITUTION:This solid waste classifying system is constituted in order to subject a solid waste group to classifying treatment and is equipped with a storage part 2 for supplying the solid waste group, a second conveyor part 4 for the classifying treatment of the solid waste group and belt conveyors 11, 12, 13 having rubber annular belts and capable of feeding the solid waste group to the second conveyor part 4 from the storage part 2.

Description

Detailed Description of the Invention

[0001]

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

[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 separation treatments are carried out in a waste treatment plant having a solid waste separation system. As a solid waste separation system, a supply unit for supplying the solid waste group, a separation processing unit for separating the solid waste group, and a separation processing unit for placing the solid waste group on the supply unit. There is already known one provided with a belt conveyor capable of transporting a solid waste group.

Conventionally, a belt conveyor used in a solid waste sorting system needs to use a belt formed by connecting a large number of metal blocks in order to convey an object having an extremely large weight difference. It has been considered and, in fact, such metal belts were used in belt conveyors in solid waste sorting systems.

[0004]

In the above-mentioned solid waste sorting system, since the belt conveyor has a metal belt, the solid waste is discarded between the blocks of the belt when the solid waste having an irregular shape is conveyed. Objects get in and the belt is easily damaged. Moreover, since the belt is a heavy metal object, maintenance work such as repair and replacement when the belt is damaged is not easy, and it takes a long time to perform the work.

If the belt is damaged, or if it takes a long time to repair or replace the belt, the operation rate of the entire solid waste separation system is lowered. An object of the present invention is to increase the operating rate of the entire system by making it difficult to damage the belt conveyor and facilitating maintenance work.

[0006]

A solid waste sorting system according to the present invention is a system for sorting a solid waste group. This system has a supply unit for supplying the solid waste group, a separation processing unit for separating the solid waste group, and an annular rubber belt, and the solid waste is discharged from the supply unit to the separation processing unit. A belt conveyor that can convey a group of objects is provided.

[0007]

In the solid waste separation processing system according to the present invention, the solid waste group is supplied from the supply unit to the belt conveyor and conveyed to the separation processing unit. Here, since the belt conveyor has the annular belt made of rubber, even if the solid waste group having an irregular shape is conveyed, the solid waste is unlikely to bite into the belt. Further, maintenance work such as repair and replacement of the belt is easy. This can increase the operating rate of the entire system.

[0008]

1 and 2, a construction waste treatment plant 1 to which an embodiment of the present invention is applied is a storage section 2 for storing a solid waste group composed of construction waste materials, and a storage section. The first conveyor part 3 for receiving the solid waste group input from 2, and the second conveyor part 3 connected to the first conveyor part 3.
The conveyor unit 4, the magnetic separator 5 arranged above the downstream end of the second conveyor unit 4, the third conveyor unit 6 including a conveyor group orthogonal to the second conveyor unit 4, and the third conveyor unit 6. A pit part 7 for processing the conveyed separated waste, a sieving part 8 connected to the downstream end of the second conveyor part 4, and a fourth conveyor connected to the downstream end of the sieving part 8. It is composed of a unit 9 and a wind power sorter 10 connected to the downstream end of the fourth conveyor unit 9.

The storage unit 2 is composed of a substantially flat ground, and can store a solid waste group unloaded from a transportation vehicle such as a dump truck in a mountain shape. In addition, in the storage unit 2,
A solid waste group is pushed out in the arrow direction (the input direction) using a bulldozer or the like. The first conveyor unit 3 is arranged adjacent to the storage unit 2, and its transport direction (rightward in the drawing) is orthogonal to the loading direction of the storage unit 2. The first conveyor section 3 is composed of three belt conveyors 11, 12 and 13 each having a rubber annular belt. The belt conveyors 11, 12 and 13 are arranged parallel to each other and horizontally, and are arranged at the bottoms of the grooves 14 formed on the ground, as shown in FIG.

In each of 11, 12, and 13, a guide plate for guiding a solid waste group introduced from the storage section 2 to each of the belt conveyors 11, 12, and 13 is provided on a side portion away from the storage section 2. 15 is attached. Guide plate 15
Extend upward along the side wall surface of the groove 14 and further extend above the reservoir 2. Belt conveyor 11,1
2 and 13 go forward in the charging direction of the storage unit 2,
The amount of extension is large. That is, the upstream end of the belt conveyor 12 is arranged between the upstream end of the belt conveyor 11 and the second conveyor unit 4. Further, the upstream end of the belt conveyor 13 is arranged between the upstream end of the belt conveyor 12 and the second conveyor unit 4. In addition, as is clear from FIG. 1, each guide plate 1
5 is provided on the belt conveyors 11, 12, and 13 at the portion exposed in the loading direction with respect to the storage unit 2.

With this configuration, the solid waste group introduced from the storage section 2 is transferred to the three belt conveyors 11, 12, 13.
Since a large amount can be received from the side, the transport efficiency of the solid waste group to the second conveyor unit 4 can be improved. Further, the guide plate 15 can prevent the overflow of the solid waste group introduced from the reservoir 2 to the belt conveyors 11, 12, and 13.

The second conveyor portion 4 is arranged so that its upstream end portion overlaps with the downstream end portion of the first conveyor portion 3 below. The second conveyor section 4 has belt conveyors 16, 17 and 18 arranged in parallel and horizontally. The belt conveyors 16, 17 and 18 each have an annular belt made of rubber, and are formed on the extension lines of the belt conveyors 11, 12 and 13 when seen in a plan view.

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

Here, the belt conveyors 11, 12, 1
Belt conveyor 1 more 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 section 3 can be spread on each belt conveyor 16, 17, 18 of the second conveyor section 4 to a thickness that facilitates manual selection.

Scaffolds 19 are formed on the sides of the belt conveyors 16, 17 and 18. The worker stands on the scaffold 19 and performs a hand selection work. As shown in FIG. 4, the magnetic separator 5 includes a pair of rollers 21 and 21 and the rollers 21 and 21.
It is composed of a thin film belt 22 that is bridged over and a plurality of magnets 23 that are between the rollers 21 and that are arranged above the lower traveling surface. The magnetic separator 5 is arranged at a distance of about 50 cm on the downstream end of each belt conveyor 16, 17, 18. The belt 22 is arranged so as to be orthogonal to the belt conveyors 16, 17 and 18, and the downstream side end portion of each of the belt conveyors 16 and 1.
It projects more laterally than 7,18. Further, the magnet 23 is not arranged at a position corresponding to the protruding portion of the belt conveyor 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 the upstream side portion thereof overlaps the second conveyor section 4 below. The third conveyor section 6 has belt conveyors 24 to 29 arranged in parallel and horizontally.
The belt conveyors 24-29 have rubber annular belts. The downstream ends of the belt conveyors 24 to 29 are
It is arranged in the corresponding pit of the pit portion 7.

Of the belt conveyors 24 to 29, the belt conveyor 24 is for conveying waste plastic. The belt conveyor 25 is for carrying a relatively large residual material. The belt conveyor 26 is for carrying scrap. Belt conveyor 27
Is for carrying cardboards. The belt conveyor 28 is for carrying a relatively large combustible material. The belt conveyor 29 is for conveying the metals selected 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 a downstream end of the belt conveyor 24, the pit 32 has a downstream end of the belt conveyor 25, the pit 33 has a downstream end of the belt conveyor 26, and the pit 34 has a downstream end of the belt conveyor 27. The pit 35 has a downstream end of the belt conveyor 28, and the pit 36 has a downstream end of the belt conveyor 29. Also,
A crusher 31a for crushing waste plastic is arranged in the pit 31, and a compressor 34a for compressing corrugated cardboard is arranged in the pit 34.

The sieving section 8 comprises a vibrating sieving machine 37 and a belt conveyor 38 for guiding the under sieving of the vibrating sieving machine 37 to the pit section 7. The fourth conveyor unit 9 is located below the vibrating screener 37 and is arranged on an extension of the second conveyor unit 4 when seen in a plan view. The fourth conveyor section 9 is arranged such that the upstream side portion thereof overlaps the vibrating screener 37 below, and guides the screen of the vibrating screener 37 to the wind separator 10. The fourth conveyor section 9 has belt conveyors 40, 41, 42 arranged in parallel and horizontally. The belt conveyors 40, 41, 42 have rubber annular belts, and their downstream end portions are arranged on the wind power sorter 10.

As shown in FIG. 5, the wind power sorter 10 is capable of blowing air into the inside of the duct 51, the inlet 50 which is provided at the upper end and which opens in a tapered shape, the duct 51 which extends downward from the inlet 50. And a pair of blowers 53. The duct 51 is a bulkhead passing through the partition 51a.
And a lightweight object passage duct 51b, and the partition wall has a blower port 5 at a position facing the discharge port of the blower 53.
4a and 54b are provided. The blower 53 is configured to discharge air toward the air blowing ports 54a and 54b in a substantially horizontal direction. Also, the heavy object passage duct 51a
Is provided with a step 52 for reducing the falling speed of the solid waste and for facilitating the separation of the solid waste. The lower ends of the heavy material passage duct 51a and the light material passage duct 51b have an incombustible material discharge port 56 for discharging wind-screened incombustible material and a combustible material discharge port 55 for discharging combustible material.
Has become.

Next, a solid waste processing operation in the construction waste processing plant 1 will be described. First, a solid waste group is placed on the storage unit 2 by a dump truck or the like. The placed solid waste group is put into the first conveyor unit 3 by a bulldozer or the like. At this time, the belt conveyors 11, 12 and 13 are located at the upstream end portions 11a, 12a, and
Since 13a extends further ahead, a large amount of solid waste can be received at one time by the three belt conveyors. Therefore, it is possible to improve the efficiency of transporting the solid waste group to the second conveyor unit. Further, since the guide plates 15 are attached to the upstream end portions of the belt conveyors 11, 12, and 13 at the side portions on the side away from the reservoir portion 2, the guide plates 15 are excessively introduced into the groove 14. Overflow of solid waste groups is prevented.

The solid waste group placed on the three belt conveyors 11, 12, 13 of the first conveyor section 3 is conveyed to the second conveyor section 4 at a conveying speed of 2.5 m / min, for example. At this time, since the belt conveyors 11, 12, and 13 are arranged horizontally, the driving force for pulling up the solid waste group, which has been conventionally required, is unnecessary. next,
The solid waste group includes the belt conveyors 11, 12, and 13 to the belt conveyors 16, 17, and 18 of the second conveyor unit 4.
Fall on. The conveying speed of the belt conveyors 16, 17 and 18 is set to, for example, 8.0 m / min, and even if the solid waste group is thickly piled up in the first belt conveyor unit 3, the belt conveyor is 16, 17, 1
On the No. 8, it is developed to a thickness suitable for manual selection. Thereby, the worker on the scaffold 19 can easily perform the sorting work.

The solid wastes taken out by the sorting operation are dropped for each type on the belt conveyors 24 to 29 arranged below and stored in the pits 31 to 36 of the pit section 7, respectively. Here, since the second conveyor unit 4 intersects with the third conveyor unit 6, the sorting work can be easily performed. Next, at the downstream end of the second conveyor section 4, the magnetic separator 5 arranged above removes the metal pieces from the solid waste. Here, the metal piece is attached to the lower surface of the thin film belt 22 by the magnet 23 and falls above the conveyor 29. The metal pieces that have fallen onto the belt conveyor 29 are in the pit 3.
It is housed in 6.

Further, the solid waste passes through the sieving section 8. There, the solid waste is passed through a vibrating sieving machine 37, and a sieve below 10 mm falls on the belt of a belt conveyor 38. The waste on the sieving machine 37 (on the sieving machine) is put into the wind force sorter 10 via the fourth conveyor section 9.
The glass introduced from the inlet 50 of FIG.
To collide with the upper step portion 52a. At this time, combustible materials such as plastics, papers, and wood chips mixed in the glass are decelerated and separated to some extent. Further, the glass is guided by the duct 51a and passes in front of the blowout port of the blower 53. At this time, the combustible substances that are easily affected by the wind force in the glass are blown away by the wind pressure, and the blower port 54a is opened.
To the adjacent duct 51b. Further, the glass is again subjected to the same sort by the step portion 52b and the blower 53b. Thus, the sorted solid wastes are collected from the combustibles outlet 55 and the incombustibles outlet 56, respectively.

In this embodiment, the belt conveyor 11
Since ~ 13, 16-18, 24-29, and 40-42 have rubber belts, the cost is lower than that of a metal belt conveyor. Further, solid waste does not easily bite into the belt, and maintenance work such as repair and replacement of the belt is easy. This can increase the operating rate of the entire system.

[0026]

In the solid waste separation treatment system according to the present invention, since the belt conveyor for conveying the solid waste group from the supply unit to the separation treatment unit has the rubber annular belt, the solid waste is It is difficult to bite into the belt, and maintenance work such as repair and replacement of the belt is easy. This can increase the operating rate of the entire system.

[Brief description of drawings]

FIG. 1 is a plan view of a construction waste treatment plant in which an embodiment of the present invention is adopted.

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

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

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

FIG. 5 is a schematic vertical cross-sectional configuration diagram of a wind power sorting device.

[Explanation of symbols]

 2 Reservoir section 3 1st conveyor section 4 2nd conveyor section 11, 12, 13 Belt conveyor

Claims (1)

[Claims] 1. A solid waste separation processing system for separating and processing a solid waste group, comprising: a supply unit for supplying the solid waste group; and a separation unit for separating the solid waste group. A solid waste separation processing system comprising: a separation processing unit; and a belt conveyor having a rubber annular belt and capable of transporting a solid waste group from the supply unit to the separation processing unit.