JP2509056B2 - Separation treatment equipment for solid waste separation treatment 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 sorting apparatus,
In particular, the present invention relates to a separation treatment apparatus in a solid waste separation treatment system having a supply unit for supplying 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. In the solid waste sorting system, a plurality of types of sorting units are arranged in multiple stages in order to sort the solid waste group. As the separation processing unit, there are a manual selection unit that manually separates, a vibration sieving machine that uses a sieve, a large bucket screen, an ink line sorting machine, and the like.

[0003]

In the conventional hand sorting section, relatively large materials such as metal, corrugated board, waste plastic, and wood chips are sorted, but small ones cannot be sorted. Even with bucket screens and incline sorters, fine waste sorting is not possible.

The vibrating sieving machine can separate fine wastes, but it is insufficient because it can only perform sorting based on the particle size. For example, in the case of separately treating block-shaped cement, wood chips mixed with soil, gravel, etc., paper chips, plastic chips, etc., it is not sufficient to perform selection based on the particle size alone. An object of the present invention is to increase the efficiency of separating solid waste by wind power.

[0005]

A separation treatment apparatus according to the present invention is an apparatus in a solid waste separation treatment system having a supply unit for supplying solid waste. This device has a first conduit, a blower, and a second conduit. First
1 pipe is used to remove the solid waste group supplied from the supply section.
And lower the falling speed of solid waste along the way
It has a step for doing. The blowing means is the step of the first conduit
The air is blown laterally into the first conduit on the downstream side. The second conduit
Branched from the first duct in the forward direction of the blowing means.
It

[0006]

In the sorting apparatus according to the present invention, the solid waste group is supplied from the supply section to the first pipeline and drops in the first pipeline. At this time, a step is provided in the middle of the first pipeline.
And the falling solid waste collides with this step.
The falling speed is reduced. Also, due to the collision with the step,
Not only the falling speed decreases, but also the separation of solid waste groups is promoted.
Be advanced. Next, on the downstream side of this step portion, the solid waste group receives the lateral wind by the air blowing means arranged in the first pipe line, and the lightweight material that is easily subjected to wind pressure is blown away in the air blowing direction of the air blowing means. And lead to the second conduit. In this way, the heavy material in the solid waste is efficiently separated into the first pipeline, and the light material in the solid waste is efficiently separated into the second pipeline.

[0007]

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 unit 2 is composed of a substantially flat ground, and can store a solid waste group unloading 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 section 3 is the storage section 2
Are arranged adjacent to each other, and the conveying direction (rightward in the figure) is orthogonal to the charging direction of the storage section 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 to each other and horizontally, and as shown in FIG. 3, a groove 14 formed on the ground.
Are located at the bottom of each.

On each side of the belt conveyors 11, 12, 13 on the side away from the storage section 2, the solid waste group introduced from the storage section 2 is conveyed by the belt conveyors 11, 12 ,.
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. The belt conveyors 11, 12, and 13 have a greater extension amount as they go forward in the loading direction of the storage unit 2. 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 fed from the storage section 2 is transferred to the three belt conveyors 11, 12, and 13.
Since a large amount can be received from the side, the transport efficiency of the solid waste group to the second belt conveyor unit 4 can be improved. The second conveyor section 4 is arranged such that the upstream end thereof overlaps the downstream end of the first conveyor section 3 below. 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 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, 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 of 6, 17, 18 per unit time becomes large, the layer of solid waste on the belt conveyors 16, 17, 18 becomes 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 spread on each belt conveyor 16, 17, 18 of the second conveyor unit 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 6 includes a pair of rollers 21 and 21 and the rollers 21 and 21.
And a plurality of magnets 23 arranged between the rollers 21 and above the lower running surface of the thin film belt 22. The magnetic separator 5 is 50 cm above the upstream end of each belt conveyor 16, 17, 18.
It is arranged with a certain distance. 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. Also, the belt 22
The magnet 23 is not arranged at a position corresponding to the protruding portion of the.

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 transporting a relatively large remaining material. The belt conveyor 26 is for transporting scrap. Belt conveyor 2
Reference numeral 7 is for carrying 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 portion 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 power sorter 10. The fourth conveyor section 9 has belt conveyors 40, 41, and 42 arranged in parallel and horizontally to each other. 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, a taper opening 50 located at the upper end, a duct 51 extending downward from the mouth 50. 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 a blower opening 54 in a generally 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, a solid waste treatment operation 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 put into the first conveyor unit 3 by a bulldozer or the like. At this time, since the guide plate 15 is attached to the upstream end of each belt conveyor 11, 12, 13 at the side away from the reservoir 2, it is excessively pushed into the groove 14. The overflow of solid waste groups is prevented. Moreover, even when the solid waste is piled up to the upper part of the guide plate 15,
Excess waste is sequentially guided by the guide plate 15 onto the belt conveyors 16, 17, and 18. Therefore, it is possible to increase the input amount when pushing the waste with the bulldozer. As a result, each belt conveyor 16, 17, 18
It is possible to improve the transportation efficiency of the solid waste group due to, and to increase the receiving amount.

Each belt conveyor 1 of the first conveyor section 3
The solid waste group placed on 1, 12, 13 is transported to the second conveyor unit 4 at a transportation speed of 2.5 m / min, for example. The solid waste group is composed of the belt conveyors 11 and 1.
2, 13 to each belt conveyor 1 of the second conveyor section 4
It falls on 6, 17, and 18. There, the conveying speed of the belt conveyors 16, 17, 18 is set to, for example, 8.0 m / min, and even if the solid waste group is thickly piled up in the first conveyor section 3, the belt conveyor is On 16, 17, and 18, 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 waste taken out in the sorting operation is transferred to the belt conveyors 2 of the third conveyor section 6 arranged below.
4 to 29 are dropped for each type and are housed 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. On the other hand, 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 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 pit 36.

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 fed into the wind separator 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, the combustibles such as plastics, papers and wood chips mixed in the waste 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 similar separation by the step portion 52b and the blower 53b. As a result, the separated solid wastes are collected from the combustibles outlet 55 and the incombustibles outlet 56.

The combustibles separated from the combustibles discharge port 55 are disposed of in an incinerator or the like. The incombustibles separated from the incombustibles discharge port 56 are again separated by a magnetic separator or the like. In addition, the waste plastics are processed in a waste plastic volume reduction solidification device or the like. In this embodiment, the accuracy of separating combustible substances and non-combustible substances in the waste is improved, and the useful resources in the non-combustible substances are regenerated in a state with less impurities, so that the efficiency of regenerating materials can be increased.

In the sorting apparatus according to the present invention, the first pipeline
Of solid waste by colliding the solid waste group with the step inside
Slows down the swarm's velocity and facilitates separation, and
To blow light from the lateral direction so that lightweight objects can be sent to the second pipeline side.
Since it is set, the separation processing can be efficiently performed.

[Brief description of 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]

 9 4th conveyor part 10 Wind power sorter 51a 1st duct 51b 2nd duct 53a, 53b Blower

Claims (1)

(57) [Claims] 1. A separation processing apparatus in a solid waste separation processing system having a supply unit for supplying solid waste, wherein the solid waste group supplied from the supply unit is dropped and solid To reduce the falling speed of waste
A first pipe having a step, a blower for laterally blowing air into the first pipe at a downstream side of the step of the first pipe; and a first pipe provided in front of the blower in the blow direction. A separation and treatment device of a solid waste separation and treatment system comprising a second pipe branching from the passage.