JP3173073B2 - Waste separation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste separation apparatus, and more particularly to an apparatus for separating building waste into incombustible and combustible materials.

[0002]

2. Description of the Related Art Recently, the treatment of municipal solid waste has become a major social problem. In this context, various problems have been raised regarding the treatment of crashing construction waste materials into non-combustible and combustible materials. are doing.

FIG. 7 and FIG. 8 show a "building waste separation equipment" disclosed in Japanese Examined Patent Publication No. 3-37992. FIG. 7 is a flowchart showing the whole of the equipment. Building waste is put into the building waste input hopper 11 provided with the screen 12 as shown by an arrow. Here, as shown by the arrow, the top of the primary sorting screen 12 is accumulated as a large lump of garbage a. The lower part is cut out from the hopper 11 by the vibrating feeder 13 into the first belt conveyor unit (1), and while being transported there, the belt 57 is wound close to the pair of rollers 56 and is arranged close to the lower traveling portion. The first belt conveyor unit (1) is provided with a magnetic material separating device comprising an installed electromagnet 58.
When passing under this, only a magnetic material such as a reinforcing bar or a fitting is adsorbed and collected as a magnetic material e as indicated by an arrow. Other waste materials include a vibrating sieve 1 provided with a secondary sorting screen 21 as shown by the arrow.
9 where the upper part of the sieve passes through a chute 27 as shown by an arrow and is supplied to a settling tank 28. The sedimentation tank 28 is clearly shown in FIG.
The lower part of the sieve is discharged by the second belt conveyor unit (2) as indicated by an arrow and is collected as small lump waste material b.

In FIG. 8, a sedimentation settling tank 28 has a substantially triangular cross section. Water is contained in the settling tank 28, and a belt conveyor 30 is disposed obliquely on the lower side. The upper part of the sieve of the secondary sorting screen 21 is put into the water tank of the sedimentation settling tank 28 through the chute 27. Among them, the heavy debris d settles on the upper traveling part of the belt conveyor 30 and thereby moves upward. It is conveyed, and is accumulated by the fifth belt conveyor unit (5) as a heavy object d as indicated by an arrow in FIG. On the other hand, the light-weight waste material c floating on the water is supplied to the draining vibrating sieve 38 as shown by the arrow by the action of the injection nozzles 32 and 33, where it is on the sieve and the fourth belt conveyor unit (4 ), As shown by the arrow, is accumulated as a lightweight waste material c. On the other hand, the water in the water receiving hopper 40 is
7 and supplied to the makeup water tank 35, where the circulation pump 3
4 is returned to the sedimentation tank 28 through the water supply pipe 36 again. In this publication, the medium-sized lightweight material c can be reused as fuel, and
Is used as a landfill, but it is a so-called wet refuse treatment because the sedimentation tank 28 is used, and the water supply line 36 and the return pipe are used to drain the water in the sedimentation tank 28. A path 37, a vibrating sieve 38 for draining water, a circulation pump 34, and the like are required, and the entire apparatus becomes large. Still further, since the construction waste material c as a combustible material is wet with water, it must be dried as a pretreatment in order to burn it.

Hitherto, a vibrating screen has been used as a dry-type device for separating this construction waste material into incombustibles and combustibles. This vibrating screen is obtained by stretching a screen having a predetermined large mesh in a casing thereof. The casing is vibrated by, for example, a pair of vibrating electric motors, and is conveyed on the screen by being vibrated by the pair of vibrating electric motors.In this process, the casing is separated into a screen below and a screen above the screen. And the like are separated and collected, and for example, paper, plastic sheets, wood chips and the like are collected as combustible materials on the sieve. In other words, metal dust, rubble, pebbles, and the like as incombustible materials generally have a small particle size,
Paper, plastic sheets and the like are relatively bulky and have a large particle size, so they are separated on a sieve. However, some of the combustibles have a smaller particle size as the sieve goes down. For example, wood chips and paper chips smaller than the mesh of the screen are often separated and accommodated in the incombustibles.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is different from a garbage disposal apparatus for building waste as disclosed in Japanese Patent Publication No. 3-37992, and is of a dry type. It is an object of the present invention to provide a refuse separation apparatus capable of separating building waste into combustibles and non-combustibles with a high degree of selection.

[0007]

An object of the present invention is to provide a first screen portion having a first predetermined relatively small mesh size on the upstream side, a first screen portion connected to the first screen portion, and a first screen portion on the downstream side. 2
And a second screen portion having a predetermined relatively large mesh size is stretched in a closed casing, the casing is vibrated, and a relatively high flow rate is provided from below to above the first screen portion. Of small air
A dust separating vibrating conveyor configured to blow out a relatively large amount of air from the lower part to the upper part of the second screen part and a wind separator, and the dirt below the sieve of the dirt separating vibrating conveyor is regarded as incombustible. Collecting and supplying refuse as sifter to the wind separator, separating the refuse on the sieve into relatively small refuse and large refuse by the wind sifter, Is collected as combustibles, and the relatively large waste is collected as incombustibles.

[0008]

[Function] Assuming that garbage is construction waste, it is crushed by a crusher as is known, and there are various kinds of garbage such as paper waste, wood waste, plastic waste, stone, rubble, etc. Is supplied into a closed casing, and is transferred on the screen by the vibration of the casing. During the transfer, air is blown from below the first screen part, so that the liquid is kept in a flowing state, and Those having a large specific gravity are transported in the vicinity of the first screen portion, and relatively small refuse is transported while occupying the upper portion of the refuse layer. As described above, incombustible materials smaller than the mesh size of the first screen portion, for example, rubble, stones, etc., fall below the first screen portion as the lower part of the sieve.
Most of the garbage that is larger than the screen mesh is wood chips,
It consists of paper, plastic sheet, etc., which are conveyed from the vibrating first screen part to the connected second screen part as a sieve. Even flammable debris with a relatively small specific gravity, which is smaller than the mesh of the first screen portion, is in a so-called fluttering state by air ejected from below the screen, and rises above the first screen portion. Since the paper is conveyed while maintaining a distant state, it is supplied to the second screen unit without being moved down the sieve, but being moved up the sieve. Incombustibles larger than the mesh of the first screen portion, such as stones and rubble, are supplied to the second screen portion as a sieve.

The second screen portion has a relatively large mesh than the first screen portion on the upstream side, and the dust on the sieve on the first screen portion supplied on the second screen portion stretches the first screen portion. It is stretched on the same casing as the casing on which it is suspended, and is conveyed thereon under the same vibration. However, the second screen portion has a relatively larger mesh than the first screen portion. By discharging air having a compressive force higher than that of the first screen portion from below to above from below, dust on the second screen portion is subjected to a greater fluidizing action than that of the first screen portion. Therefore, waste having a relatively low specific gravity certainly occupies the upper part of the fluidized waste on the second screen part, and stones, debris (non-combustibles), etc., which are relatively high in specific gravity, are in the second screen. It occupies the lower part of the fluidized debris on the part, i.e. is conveyed close to the second screen part. Therefore, during this conveyance, the sheet falls downward as a sieve. Stones as incombustibles,
Since the rubble and the like are usually crushed, they are smaller than the mesh of the second screen portion. Therefore, the incombustibles are almost completely sieved here under the sieve, and the dust on the sieve of the second screen portion is relatively small in specific gravity. Also occupy the upper part of the fluidized waste above it and are conveyed over it by vibration. A small amount of incombustible stones and the like, which occupy the lower part of the fluidized waste and are larger than a relatively large mesh size, are still transferred to the downstream side on the sieve.
Therefore, what is discharged from the vibrating screen as the upper part of the screen is mostly combustible waste, and what is discharged as the lower part of the screen is almost non-burnable waste. In the first screen part, a relatively small mesh, and air with relatively low compressive force is jetted upward from below to separate incombustibles and combustibles in advance. The debris is supplied in a state, thus ensuring the above-mentioned effect.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for treating construction waste according to an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows an entire construction waste separation apparatus according to an embodiment of the present invention. In the drawing, construction waste conveyed from a construction site by a dump truck 61 is introduced into a construction waste pit 60. It is supplied to the lower end of a first lifting belt conveyor 62 provided at the bottom of the pit 60. A belt is wound around the drive roller 63, the driven roller 64, and each guide member (not shown) so as to convey the building waste material diagonally upward as shown in the figure. Supplied. A pair of crushing rollers 66 a and 66 b are provided in the crushing machine 65, whereby the building waste material is finely crushed and supplied to the hopper 67. The lower end of the second ascending belt conveyor 68 faces the discharge opening of the hopper 67,
This is also the same as the first belt conveyor 62, and the driving roller 6
9 and a driven roller 70, around which a belt is wound. A rotating magnet 71 is provided coaxially with the driven roller 70, and thereby a magnetic material such as iron waste While being sucked onto the belt, they are separated and discharged to the magnetic substance recovery device as indicated by an arrow x. Other refuse is supplied into the hopper 72. A known non-magnetic metal separation device 73 is provided immediately below the discharge opening. This also consists of a driving roller and a driven roller, around which a belt is wound, and a rotating magnet is also provided in the roller on the discharge end side, which is coaxial with the driven roller. However, the rotation axis is independent,
Rotate faster. As a result, a permanent magnet is attached to the nonmagnetic metal, such as aluminum or copper, on the belt at the discharge end by changing the magnetism alternately of N pole, S pole, N pole, S pole,. The eddy current is generated by the change of the direction of the magnetic flux from now on, and the eddy current interacts with the eddy current to greatly jump as shown by the arrow y and is discharged to the non-magnetic metal recovery position. Other waste is supplied to the hopper 80 via a belt conveyor or the like as shown by the arrow z.

From the hopper 80, an electromagnetic vibration feeder 8 is provided.
1 is fed to a vibrating waste separation conveyor 82 whose details are described in FIG. 2 where the lower part of the sieve is recovered as incombustibles and the upper part of the sieve is fed to a wind separator 83 whose details are shown in FIG. Here, refuse having a relatively low specific gravity is collected as a light combustible material, and refuse having a relatively high specific gravity is, for example, stone-like refuse, which is recovered as an incombustible material.

Next, the details of the vibration waste separation conveyor 82 will be described with reference to FIG.

In FIG. 2, a screen 83 made of punched metal is stretched over a substantially rectangular closed casing K. According to the present embodiment, in the first screen portion 83a on the upstream side of the screen 83, the mesh, that is, the diameter of the opening a is relatively small, and in the second screen portion 83b on the downstream side, the mesh is large, that is, in the opening b. The diameter is relatively large. A duct 84a for discharging a weak wind and a duct 84b for discharging a strong wind are provided on the upper wall portion of the closed casing K, respectively. The right end of the sealed casing K has a discharge port 8 for discharging above the sieve.
5. A discharge port 86 for discharging the material under the sieve is integrally formed. A supply port 87 is formed near the left end of the closed casing K, and a vibrating feeder 81 is provided thereon.
2 supplies building waste to be separated.
Although the hopper 80 actually has a larger dimension,
The figure is shown in a reduced size for easy understanding, and is installed on a stand (not shown).

Below the closed casing K, a counter
A weight 88 is supported and disposed on a vibration-proof spring 92, which is connected to the upper sealed casing K by a lengker 90 and a coil spring 89. An upper end and a lower end of the ren car 90 are pivotally connected to the closed casing K and the counter weight 88 by rubber bushes, respectively.
A support 91 fixed to the weight 88 is also pivoted by a rubber bush. The wrench 90 and the coil spring 89 are arranged at right angles to each other, and vibrate the closed casing K in a direction indicated by an arrow V in a direction substantially perpendicular to the longitudinal direction of the wrench 90. A motor 93 is fixed to the counter weight 88,
This is configured to transmit the rotational driving force via a belt 96 to a pulley 95 of a crank driving section 94 also disposed on the counter weight 88, and the rotational movement is linearly moved by the crank driving section 94. It is converted into movement. The upper end of the drive rod 97 that transmits this linear motion is fixed to the closed casing K via a shock absorber 98.

As described above, the screen 83 is stretched over the closed casing K. As a result, the inside of the closed casing K is defined by an upper space 101 and a lower space 102, and the upstream of the lower space 102 An air outlet pipe 99 fixed to the side wall of the closed casing K is arranged in the side space, that is, in the area of the first screen portion 83a having a relatively small mesh of the screen 83, so that the air flow P having a relatively small compressive force is provided. Is introduced from the lower space 102 to the upper space 10 through the first screen portion 83a of the screen 83.
1 and the exhaust air flow P ′ through the duct 84a. The lower space 102 is provided to define a space below the first screen portion 83a and the second screen portion 83b of the screen 83 by the partition member 105, but is caused by vibrations below the sieve that has fallen into the lower space 102 side. The transfer shall not be impeded. The airflow Q having a relatively high compressive force is applied to the side wall near the right end wall of the closed casing K.
Is fixed. The air flow Q having a relatively high compression force passes through the lower space 102.
Is introduced into the right region of the partition member 105, and the first screen portion 83 of the screen 83 is formed by the partition member 105.
a to the lower space 102 side is prevented as much as possible. The partition member 1 is also provided near the right end of the lower space 102.
03 is fixed to the lower surface of the screen 83 and the introduction pipe 100
From the outlet 86 as much as possible.

Therefore, almost all of the air flow Q is discharged as the discharge air Q 'through the duct 84b above the first screen portion 83b. The partition member 104 is fixed to the upper wall of the closed casing K in order to prevent the air flow Q having a relatively high compressive force from being led to the downstream side of the upper space 101 as much as possible. This is the outlet 85
Do not prevent you from being led to

Next, the air blowing system and the air discharging system for the above-mentioned refuse separation vibration conveyor 82 will be described with reference to FIGS. 2, 4 and 5. FIG.

As described above, the lower space 10 in FIG.
The 2 is the relatively strong air flow Q and a relatively weak air flow P is introduced, but the side wall portion of the closed casing K for this, as shown in FIG. 2, the circular hole H ₁ and H ₂ The pipes 99 and 100 are integrally fixed as shown in FIG. These flange portions are provided with bellows-like flexible connecting members 130a, 130a.
b is connected to the other end of the connecting pipe 131.
a and 131b are connected, and these are connected to a common blower pipe 133. Connection pipe 131a, 1
Known dampers 132a and 132b are swingably mounted in 31b, and are rotatable around their central axes, which have a function like a throttle valve of an automobile, and are shown in FIG. By adjusting the rotation angle from the outside, the amount of airflow from the blower 134 connected to the blower pipe 133 can be adjusted.

Next, the exhaust system will be described with reference to FIG. 4. The flange portions of the ducts 84a and 84b in FIG. 2 have bellows-like flexible connecting members 111a and 111b.
Are connected to the other end portions of the connection pipes 114a and 114a.
4b, and dampers 112a and 112b having the same structure as described above are mounted inside. The connection pipes 114a and 114b are connected to a common pipe 115, a cyclone 116 is joined to the other end, and a rotary valve 117 is attached to this outlet. And this rotary valve 117
Is connected via a pipe 115a to a bag filter dust collector 119 for separating debris having a smaller mass, and an exhaust blower 121 is connected to this. A rotary valve 120 is provided at the discharge opening of the bag filter dust collector 119.

As shown in FIG. 3, the wind separator 202 has a compressed air inlet 233 and an air outlet 234. The compressed air inlet 233 is connected to the blower 300 via a flexible connecting member. Connected to a pipe 301 which is connected to A damper 303 is provided at an air intake of the blower 300. On the other hand, a pipe 304 is also connected to the air outlet 234 via a flexible connecting member, which is connected to the above-described exhaust pipe 115.
5 are provided.

Next, the details of the wind separator 202 will be described with reference to FIG. Although this has a known structure, a triangular separating plate 23 is provided on the bottom wall side in the closed casing 230.
2 are provided, and the central portion is formed as a ridge line 232a.
And a waste m having a relatively large specific gravity, and a discharge outlet 236 for discharging the waste m having a relatively large specific gravity and a discharge outlet 235 for discharging the waste n having a relatively small specific gravity. The air outlet 234 is provided at the right end of the closed casing 230 so as to face the air outlet. The outlets 235 and 236 are respectively led to the incombustibles recovery container and the combustibles recovery container.

The construction waste separating apparatus according to the embodiment of the present invention is configured as described above. Next, the operation thereof will be described.

The drive rod 97 performs linear vibration by driving a known crank drive unit 94 that drives a motor 93, and this is transmitted to the closed casing K via a shock absorber 98. That is, when the motor 93 is started, a large impact force is applied to the drive rod 97, but the shock absorber 98 (made of two plate rubber members as is well known, and the impact force is absorbed by the rubber) is applied to the closed casing K by the shock absorber 98. Thus, the operation is started smoothly without transmitting the impact force at the time of driving. That is, Lenker 90
Are oscillating about a central bush, which is pivotally mounted on a column 91, and are arranged vertically in a coil spring 8
Due to the expansion and contraction of 9, the closed casing K linearly moves in the direction indicated by the arrow V.

On the other hand, a large amount of construction waste is stored in the hopper 80.
1 and the screen 8 together with the vibration of the closed casing K
3 and is transported to the right in the figure by this vibration. On the way, an airflow P having a relatively low compression force is introduced into the lower space 102. This passes through the first screen portion 83a and the upper space 101 and the duct 84a.
, And is discharged outside as a discharge airflow P ′, and the dust on the screen portion 83a is fluidized by the air ejected upward from below. Therefore, in this flowing state, the lower layer side of the first screen 83a side has relatively large refuse such as stones, rubble, etc. preferentially, and these fall through the relatively small mesh to the lower space 102 side. . That is, closed casing K
Is transported to the right by vibrations on the bottom wall. On the other hand, dust having a relatively small specific gravity and a small particle diameter preferentially occupies an upper portion of the dust layer on the screen portion 83a by compressed air from below, and has little chance of contacting the lower screen portion 83a. The vibration is transmitted by the lower debris layer and is transferred to the right in the figure. As a result, it is transferred to the second screen part 83b without passing through the mesh a. Also, dust, paper, plastic, wood chips, etc., larger than the mesh a, whether occupying the lower portion or the upper portion of the dust layer, are transferred to the right by vibration without passing through the mesh of the screen portion 83a, First screen part 8
3b.

As shown in FIG. 6, the lower space 1
02 is introduced with air having a relatively high compressive force, whereby dust on the second screen portion 83b is subjected to a greater fluidizing action than on the first screen portion 83a, and dust having a relatively small specific gravity, for example, Dust S such as dusty dust, small paper, and cotton dust are guided to the cyclone 116 and the bag filter dust collector 119 through the duct 84b while occupying the upper layer of the dust while almost flying, as shown in the figure. ,
Also, since pebbles, rubble, and the like, which are relatively large in specific gravity, are transferred by vibration in a state of being close to the second screen portion 83b, the diameter of the first screen portion 83a is smaller than that of the opening a of the mesh of the first screen portion 83a. not fall in a large becomes garbage h ₁ than the size also fall into the lower space 102 through the opening b of the mesh in the second screen portion 83 b.
On the other hand, the second screen portion 83b as an upper sieve all larger dust h ₂ than the mesh of the second screen portion 83b
Is transferred to the wind separator 202 through the discharge port 85.

The first screen portion 8 of the screen 83
Dust h ₁ became minus sieve of dust h ₁ and the second screen portion 83b of the lower sieve 3a is discharged to the outside through all outlet portion 86. Dust h ₁ which is discharged from the discharge port portion 86 so as to above is recovered as incombustible.

The above way but the winnowing machine 202 is the dust h ₂ from the dust separation vibrating conveyor 82 in a state where combustibles also incombustible be mixed is fed, in FIG. 3, the supply 2
When 31 Construction dust h ₂ from is turned on, which in the course of falling into the casing 230 in a free fall, subjected to air jet flow A from the left end wall portion of the air ejection port 233, a relatively specific gravity large dust, for example rubble The stone passes through the discharge port 235 and is collected on the incombustibles collection container side. In addition, dust, paper dust, and wood dust h having a relatively small specific gravity pass over the ridge line 232a of the separation plate 232, and the waste outlet 2 on the right side in FIG.
From 36, it is discharged to the combustible material recovery container side.

As described above, the refuse h ₂ is separated into combustibles and non-combustibles. The upstream refuse separation vibrating conveyor 82 separates the non-combustibles and combustibles by a mesh size and generates wind. Since the air is supplied to the separator 202, the load of the wind separator 202 is reduced, and thus the air is supplied while maintaining a high degree of selection. Here, waste having a relatively large specific gravity and waste having a relatively small specific gravity are supplied. Is separated, the latter is separated as combustibles, and the former is separated as non-combustibles. In the refuse separation vibration conveyor 82, even if the refuse is smaller than the mesh,
In particular, combustible waste such as dust having a low specific gravity is transported as an upper layer portion and almost certainly supplied to the wind separator 202, so that it is supplied here to the combustible material as relatively low specific gravity. . Therefore, rubble, stones, and the like as incombustibles can be reliably collected as incombustibles. In the garbage separation vibrating conveyor 82, a two-stage screen 83a,
Since the lower part of the sieve is separated by 83b, it is supplied to the wind separator 202 with uniform particle size, so that the wind separator has a particularly high degree of wind selection.

Particularly fine dust, such as dust, fine plastic waste, cotton waste, etc., among the construction waste, is removed from the ducts 84a and 8a.
4b, and the exhaust pipe 115 shown in FIG.
And is introduced into the cyclone 116. Among these, fine dust having a relatively large specific gravity accumulates below under the known cyclone action, and is discharged to the lower belt conveyor 118 by rotating the rotary valve 117, and is conveyed to a predetermined position. The fine dust having a relatively small specific gravity is guided to the bag filter dust collector 119, where the fine dust is adsorbed by a built-in filter, and only the air is led out to the outside by the blower blower 121.

In the operation as described above, the amount of air blown and the amount of exhaust air are adjusted by each damper. In the case of the dampers 132a and 132b shown in FIG. The amount of air flow P, Q introduced into the lower space 102 in 2 is adjusted. That is, by increasing the rotation angles of the dampers 132a and 132b, stronger air flows P and Q are obtained. Further, dampers 112a, 1a, 1b in the exhaust system as shown in FIG.
In the case of 12b, by adjusting their rotation angles, the suction amount of fine dust sucked from the respective ducts 84a and 84b is adjusted. The amount of fine dust separated into and adsorbed on the dust filter 116 and the bag filter 119 is adjusted.

Further, in the case of the damper 303 provided at the air intake of the blower 300 connected to the wind separator 202, the rotation angle is adjusted so that one of the wind separators 202 shown in FIG. The amount of the air jet A ejected from the wall toward the other wall is adjusted, and the air jet A is connected to the discharge port 85 of the dust separation vibrating conveyor 82 via a flexible connecting member J. They are separated by their specific gravity and small debris h ₂ being dropped introduced from the supply port 231 that. Further, the amount depending on the type of waste h ₂ of the input amount of the air jet flow A Wagomi h ₂ and seasons that are regulated.

[0033]

As described above, according to the refuse separation apparatus of the present invention, refuse, for example, construction waste refuse can be separated and recovered into incombustibles and combustibles with good selectivity.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an entire construction waste separating apparatus according to an embodiment of the present invention.

FIG. 2 is a partially broken side view of a main part of a device for separating non-combustible materials and combustible materials in the device.

FIG. 3 is an enlarged sectional view of another main part of the device in FIG.

FIG. 4 is a schematic side view of a device portion for separating into incombustibles and combustibles in FIG. 1, particularly showing an exhaust system.

FIG. 5 is a plan view showing a blower system for a main part shown in FIG. 2;

FIG. 6 is a partially enlarged cross-sectional view showing the operation of FIG. 2;

FIG. 7 is a flowchart showing the entire construction waste separation apparatus of a conventional example.

FIG. 8 is a side view of a main part in FIG. 7;

[Explanation of symbols]

 82 Waste separation and vibration conveyor 83 Screen 83a First screen part 83b Second screen part 134 Blower 202 Wind separator 300 Blower K Hermetic casing

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ Identification code FI B65G 27/18 B65G 47/14 101Z 47/14 101 B09B 5/00 L (56) References JP-A-5-192644 (JP, A) JP-A-4-354568 (JP, A) JP-A-5-7841 (JP, A) JP-A-5-115849 (JP, A) JP-A-52-111963 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B07B 1/00-15/00

Claims (4)

(57) [Claims] 1. A first screen portion having a first predetermined relatively small mesh size on the upstream side, and a second predetermined relatively large mesh size connected to the first screen portion on the downstream side. A screen comprising a second screen portion having a screen is stretched in a closed casing, the casing is vibrated, and a relatively small amount of air is jetted upward from below the first screen portion. A dust separation vibrating conveyor configured to blow out a relatively large amount of air from the lower part to the upper part of the second screen part and a wind separator, and collects dust as a non-combustible material under a sieve of the dust separation vibrating conveyor. And supplying garbage as a sieve to the wind separator,
The wind separator separates the sieve into relatively small-weight and large-size waste, collects the relatively-low-weight waste as combustibles, and removes the relatively-large-weight waste as non-combustible. A refuse separation device characterized by being collected as waste. 2. A bottom wall surface of the casing includes a partition wall hanging downward from the screen at a boundary between the first screen portion and the second screen portion of the casing and at an end of the second screen portion. 2. The refuse separation apparatus according to claim 1, wherein a gap is provided so that a lower portion of the sieve can pass therethrough. 3. The refuse separation device according to claim 2, wherein an air outlet is formed in each of the upper walls of the first and second screen portions of the casing, and these are connected to a dust collector. 4. The refuse separation apparatus according to claim 1, wherein a dust collector is connected to a discharge port of the refuse separation air of the wind separator.