KR100953665B1 - Equipment for separating and classifing of impurity content of constructional waste materials in recycling system - Google Patents

Abstract

PURPOSE: An apparatus for sorting foreign materials of waste is provided to assort the foreign materials, which is mixed in construction waste transferred to a belt conveyor, in three kinds, to prevent dusts from flying, and enhance efficiency of collecting dusts. CONSTITUTION: An apparatus for sorting foreign materials of waste comprises: a belt shaking device which is installed under a belt conveyor(A) and mixes construction waste by shaking the belt conveyor; an inhalation equipment part(2) in which air containing foreign materials is inhaled; a first sorting part(3) in which foreign material having a large size is selected; a second sorting part(4) in which the foreign material having light specific gravity is selected; and a third sorting part(5) in which minute particles among the air passing through the second sorting part is selected.

Description

Equipment for Separating and Classifing of Impurity Content of Constructional Waste Materials in Recycling System}

The present invention relates to a foreign matter sorting and sorting device of construction waste, and more particularly, waste paper, waste contained in recycled aggregates to produce aggregates by crushing to a certain size in order to recycle the construction wastes generated during the demolition of existing buildings The present invention relates to a foreign matter sorting apparatus for wastes for sorting and classifying foreign matter which cannot be used as vinyls, fine sand or aggregates.

Recently, as urban redevelopment apartments and large-scale apartments are being rebuilt, more than 20 million tons of construction wastes are generated annually, and more construction wastes are expected in the future.

However, the construction wastes generated every year are extremely infrequent, and only a very small amount is recycled as roadbed or fill composition of road construction, and most of the remaining landfills are disposed of in the ground, or a considerable amount of unauthorized dumping. The situation is causing serious soil pollution.

In general, the conventional technology used to recycle aggregate or other by-products from civil engineering and construction wastes first removes foreign substances such as wood and vinyl through the first sorting process by hand. After separating the soil generated through the primary crushing process by the crusher such as the crusher, the remaining construction waste is transferred through the belt conveyor to the primary magnetic sorting process, in which the scrap metal is removed by the magnetic sorting machine. Are separated.

Then, by removing the foreign substances such as garbage and vinyl through the secondary sorting process by manual work, and transferring to the primary screen process, the stone powder is separated through the vibrating screen composed of lattice mesh. After removing the foreign matter through the sorting process, the building waste shredded by the second shredding process separates scrap metals such as the rebars remaining in the first magnetic sorting process through the second magnetic sorting process such as magnet, and then into the lattice mesh When the secondary screen process is performed through the configured vibration screen, recycled aggregate is obtained by sequentially separating sand, fine aggregate, and coarse aggregate.

During the process, the soil obtained in the primary crushing process is mixed with foreign materials such as vinyl, styrofoam and fiber, making it difficult to use as a recycled aggregate. A wet classifier, which is a device for sorting it, is disclosed in Korean Utility Model Registration Publication No. 1342229. Proposed.

Looking at the configuration, when the earth and sand obtained after the first crushing process is continuously introduced into the collection tank through the hopper, the soil is settled in the water and various foreign substances having a specific gravity of 1 or less has a configuration that is suspended above the water surface in the collection tank.

Therefore, the soil sediment submerged in the water can be discharged to the outside by the soil discharge means installed in the water tank of the lower side of the hopper, the foreign matter floated on the water surface of the water tank of the water tank by the foreign material discharge means installed on the outside of the water tank on the surface of the water tank It has a configuration to discharge to the outside. In addition, the sediment, such as sludge settled on the bottom of the sump tank has a configuration that can be discharged to the outside of the sump by the sediment discharge means installed on the outside of the sump at the bottom of the sump.

The prior art has been secured to some extent that the production of aggregates by pure waste concrete can be effectively achieved by separating impurities contained in various building wastes, but it includes the following problems.

First of all, it is followed by a subsequent treatment process such as water purification treatment of the discharged water discharged in the process of removing impurities, and if the wastewater treatment is not smooth, secondary environmental pollution by the discharge water occurs. In addition, the efficiency of separating the floating impurities in the inside of the sump is lower than expected, and in the process of classifying foreign matters, sand is not collected and recycled. In addition, there is a disadvantage that the water inside the sump can not be used in the winter season, it is impossible to use, there is a problem that must be deposited after drying the recycled aggregate in the wet state, there is a high risk of causing corrosion or failure by installing various mechanical devices in the sump I have another problem.

In addition, the invention disclosed as a sorting device for the construction wastes relates to a sorting device for sorting recycled aggregates from building wastes, which is generated when crushing the building wastes generated during the demolition of existing buildings to a certain size. By blowing a strong wind to the soil, the foreign matter mixed with the soil is selected by the difference in specific gravity to obtain a good recycled aggregate.

Looking at the configuration of the present invention through the operation process, the soil mixed with the foreign matter transported by the conveyor freely falls into the sorting device, the soil having a relatively high specific gravity by the blower provided on the rear side is deposited in the first hopper. After the foreign matter having low specific gravity is loaded in the second hopper, the earth and sand are transported by the conveyor to the storage yard, and the foreign matter is stored in the first bag attached to the bottom of the second hopper and then transferred to the combustible waste storage yard. When the soil powder is transferred to the blower pipe by the blower, it is sucked by the blower, flows into the cyclone dust collector through the blower pipe, and when the swirl flow occurs inside the dust collector by the tangential inlet, fine soil powder is discharged into the second bag by centrifugal force and gravity. Collected, filtered and treated air has a series of operating processes that flow out through the swirl flow damper and the chimney. The.

As described above, the present invention collects the earth and sand generated during the shredding process of the various processes that are processed to use the construction waste generated from the demolition of the existing building as recycled aggregate, and then mixed with the earth and sand using a strong wind power It is effective to obtain high quality reclaimed soil because it sorts out foreign substances by specific gravity, but it requires two hoppers and two fans of blowing wind blowing, and it is a method of sorting by specific gravity by blowing with wind while free-falling. When the scattering and installation of a large area is required and only the cyclone dust collection has a problem of low dust collection efficiency.

The present invention for solving the above problems is to provide a device for sorting and classifying foreign matter that can not be used as waste paper, waste vinyl, fine sand or aggregate mixed in construction waste conveyed to the belt conveyor, by a belt swing device A suction device unit for sucking air containing the foreign substances generated from the rocked construction waste; A first sorting unit for sorting foreign matter having large particles contained in the air sucked from the suction device unit; A second sorting unit for sorting foreign matters having a low specific gravity among the air and the foreign matter passing through the first sorting unit; The object of the present invention is to provide a fine aggregate by selecting and classifying three kinds of foreign substances in the construction waste, which is composed of a third sorting unit in which fine particles in the air passing through the second sorting unit are sorted.

The present invention is a foreign matter sorting apparatus for sorting and classifying foreign matter that cannot be used as waste paper, waste vinyls, fine sand, or aggregates mixed in construction waste conveyed to a belt conveyor, wherein the foreign matter sorting apparatus is loaded on the belt conveyor. A belt swing device which is installed under the belt conveyor to sort out the foreign matter in the construction waste, and which swings the belt of the belt conveyor and mixes the construction waste by the belt swing; A suction device unit for sucking air containing the foreign matter generated from construction waste rocked by the belt swing device; A first sorting unit for sorting foreign matter having large particles contained in the air sucked by the suction device; a second sorting unit for sorting foreign matters having a low specific gravity among the air and the foreign matter passing through the first sorting unit; It is composed of a third sorting unit for the fine particles in the air passing through the second sorting unit is sorted.

The belt swinging device is composed of a plurality of paddle cam while rotating the belt of the belt conveyor to make foreign matter contained in the construction waste is sucked in the suction device portion, the suction device portion suction to generate the suction and discharge static pressure And a blower, a suction hood through which air and foreign substances from the belt portion are sucked, and a suction duct connected to the suction blower and the suction hood and a suction flow path is formed, and the first selection unit selectively attaches foreign substances having a size of 10 mm or more. Is composed of a net conveyor, a first foreign matter storage box for storing the foreign matters selected from the net conveyor, and a foreign matter chute to send the foreign matter attached to the lower portion of the netken conveyor weak suction force falls to the first foreign matter box, The net size of the net conveyor is 8 X 8mm ~ 15 X 15mm, the network Subsequently, a plurality of blowing nozzles are installed to remove the foreign matter attached to the mesh and the drum for rotating the mesh, and the second sorting unit is provided with a low specific gravity contained in the air passing through the first sorting unit. Louver cyclone to escape between the louver and rise by the pressure difference between the inside and outside, a second foreign matter storage box for storing the foreign matter collected from the louver cyclone, and a second transfer duct connecting the louver cyclone in the suction blower The third sorting unit draws air containing the fine particles passing through the second sorting unit in a tangential direction to be rotated by centrifugal force, and the fine particles falling down by gravity are collected and air is fed into the center pipe. Centrifugal cyclone discharged, and fine powder for storing the fine particles collected in the centrifugal cyclone Foreign material selection of waste consisting of a jang box, an air outlet through which the clean air passing through the centrifugal cyclone is discharged, and a third transfer duct connected to the louver cyclone and the centrifugal cyclone and to which the centrifugal cyclone and the air outlet are connected. The classification device can solve the problems of the present invention.

According to the present invention, it is possible to sort and classify three kinds of foreign materials which cannot be used as waste paper, waste vinyl, fine sand or aggregate mixed in construction wastes conveyed to a belt conveyor, and only the suction part is opened and sealed at the time of sorting. It can prevent dust from scattering and increase dust collection efficiency by using two kinds of louver cyclones and centrifugal cyclones. By collecting foreign substances by type, it can reduce the disposal cost of foreign substances and recycle high quality aggregates from construction waste. It can work.

1 is a layout front view of a foreign matter sorting and sorting device according to the invention
Figure 2 is a plan view of the layout of the foreign matter sorting device of the waste according to the present invention
3 is a plan view and a cross-sectional schematic diagram of a first sorting unit of a foreign matter sorting and sorting device according to the present invention;
4 is a plan view and a cross-sectional view of the belt swinging device of the foreign matter sorting and sorting device according to the invention
5 is a belt swing device installation position of the foreign matter sorting and sorting device according to the invention
6 is a schematic diagram of a louver cyclone of a foreign matter sorting and sorting device according to the present invention;
Figure 7 is a schematic diagram of the centrifugal cyclone of the foreign matter sorting device of the waste according to the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a layout front view of a foreign matter sorting and classification apparatus for waste according to the present invention, FIG. 2 is a layout plan view of a foreign matter sorting and classification apparatus for waste according to the present invention, and FIG. 3 is a foreign matter sorting and sorting apparatus for waste according to the present invention. 1 is a plan view and a cross-sectional schematic diagram of the first sorting part, and FIG. 4 is a plan view and a cross-sectional view of the belt rocking device of the foreign matter sorting and sorting device according to the present invention, and FIG. 6 is a schematic diagram of a louver cyclone of a foreign matter sorting and sorting device for waste according to the present invention, and FIG. 7 is a schematic diagram of a centrifugal cyclone of a foreign matter sorting and sorting device for waste according to the present invention.

As shown in FIG. 1 and FIG. 2, the foreign matter sorting and sorting device of the waste according to the present invention can be used as waste paper, waste vinyls, fine sand or aggregate mixed in the construction waste (C) transferred to the belt conveyor (A). It is a device for sorting and classifying foreign substances.

Sorting of the construction waste (C) into aggregates by crushing with a crusher such as jaw crusher, and then sorting the particle size according to the purpose, and then sorting the foreign matters of the waste according to the present invention before loading onto a truck or entering an ascon manufacturing apparatus for use as aggregate. After the foreign matter is sorted through the apparatus (B), it is loaded or put into the ascon manufacturing process.

The foreign matter sorting and classification device (B) is installed under the belt conveyor (A) in order to easily sort the foreign matter in the construction waste (C) loaded on the belt conveyor (A) of the belt conveyor (A) A belt swinging device (1) which swings the belt (A1) and causes the construction waste (C) to be mixed by the swinging of the belt (A1); A suction device unit (2) through which air containing the foreign matter generated from the construction waste (C) rocked by the belt swing device (1) is sucked in; A first sorting unit 3 for sorting foreign matter having large particles contained in the air sucked by the suction device unit 2; A second sorting unit 4 for sorting foreign matters having a low specific gravity among air and foreign matter having passed through the first sorting unit 3; It consists of a third screening section (5) for sorting the fine particles in the air passing through the second screening section (4).

The belt swinging device (1) is composed of a plurality of paddle cam (11) while rotating the belt (A1) of the belt conveyor (A) foreign matter contained in the construction waste (C) is the suction device unit ( Inhaled in 2).

The suction device unit 2 includes a suction blower 21 for generating suction and discharge static pressure, a suction hood 22 for sucking air and foreign substances from the belt portion, the suction blower 21 and a suction hood 22. Is composed of a suction duct 23 is connected to the suction flow path is formed.

The suction blower 21 is a suction static pressure sufficient to suck the foreign matter contained in the construction waste (C) and the loss constant pressure lost in the louver cyclone 41 and the centrifugal cyclone 51 and the required inlet speed in the centrifugal cyclone 51 The air volume and the static pressure should be determined in consideration of dynamic pressure and the like, and it is preferable to select a turbo type or sirocco type blower.

The suction hood 22 is preferably formed with suction ports 221 on both sides of the belt conveyor in the traveling direction to prevent suction by being pulled to one side and to be uniformly sucked in the suction hood 22.

The suction duct 23 or the part that changes the direction of the other duct work is made round to reduce the static pressure loss, or when manufacturing at right angles, it is preferable to install the guide vane inside to reduce the static pressure loss.

The first selection unit 3 is a net conveyor 31 to which the foreign matter having a size of 10mm or more is attached, the first foreign matter storage box 32 for storing the foreign matter selected from the net conveyor 31, and the The foreign matter attached to the lower portion of the net conveyor (31) consists of a foreign matter chute 33 to send the weak suction force to the first foreign matter box 32, the size of the net 311 of the net conveyor 31 8 x 8 mm to 15 x 15 mm, and the netken bearing 31 has a plurality of blowing nozzles 313 for removing foreign matter attached to the mesh 311 and the drum 312 for rotating the mesh 311. ) Is installed.

The second sorting unit 4 is such that foreign matters having a light specific gravity contained in the air passing through the first sorting unit 3 emerge between the louvers 411 while being floated by the pressure difference inside and outside the louver 411. A second transport connecting the louver cyclone 41, the second foreign matter storage box 42 storing the foreign matter collected by the louver cyclone 41, and the louver cyclone 41 at the suction blower 21. It consists of a doc 43.

The third sorting unit 5 draws air containing the microparticles that have passed through the second sorting unit 4 in the tangential direction, rotates by centrifugal force, and collects the fine particles falling down by gravity and collects the center. A centrifugal cyclone 51 through which air is discharged to the pipe 511, a differential storage box 52 for storing fine particles collected by the centrifugal cyclone 51, and clean air passing through the centrifugal cyclone 51 The discharge port 53 is discharged, and the louver cyclone 41 and the centrifugal cyclone 51 is connected to the centrifugal cyclone 51 and the air outlet 53 is connected to the third transfer duct (54) In addition, the air outlet 53 is a foreign matter sorting device of the waste which has a structure in which a silencer 531 is installed to reduce noise during air discharge.

As illustrated in FIG. 3, the first selection unit 3 includes a net conveyor 31 to which foreign substances having a size of 10 mm or more are attached and a first foreign substance to store the foreign substances selected from the net conveyor 31. It consists of a storage box 32 and a foreign matter chute 33 to send the foreign matter attached to the lower portion of the netken conveyor 31 to the first foreign material box 32 that the suction force is weak and falling, the net conveyor 31 ) Mesh size 311 is 8 X 8mm ~ 15 X 15mm, to remove the foreign matter attached to the drum (312) to rotate the mesh 311 and the mesh 311 to the net conveyor (31). A plurality of blowing nozzles 313 are installed.

The net conveyor 31 has a space in the middle by two drums 312 and two auxiliary drums 316 installed in front and rear, while the net 311 continues to rotate so that the suction hood 22 is installed in the space. When the air is sucked into the suction blower 21, the air is sucked into the suction hood 22, and the foreign matter having a large size is attached to the mesh 311 and rotates in a counterclockwise direction. Since the suction force is weakened away from the suction port 221 of (22), foreign matter attached to the net 311 falls freely by its own weight and is accumulated in the first foreign material box 32.

However, the drum 312 which installs a plurality of blowing nozzles 313 to drop the foreign matters by dropping them from being caught by the meshes 311 and is not completely removed, thereby rotating the meshes 311. A plurality of blowing nozzles 313 for removing the foreign matter attached to the drum is additionally installed.

The supply air of the blowing nozzle 313 may be branched from the discharge side of the suction blower 21, or may be supplied by installing a separate turbo fan.

When foreign matter adheres to the drum 312, the mesh 311 meanders so that the mesh 311 does not rotate at right angles to the drum 312 so that the mesh 311 rotates obliquely. 312) to prevent the rotation is stopped, it is preferable to adjust the take-up device 317 installed in the drum 312 of the rear side to prevent the mesh 311 from meandering.

It is preferable that a handrail and a workbench 315 are installed around the net conveyor 31 to check maintenance and operation matters.

The foreign matter chute 33 is to prevent the foreign matter is accumulated to fill up the net 311 to prevent the rise, and the fall angle 331 of the chute in order to fall without accumulating foreign matter should be manufactured to 50 ° or more.

As shown in FIGS. 4 and 5, the belt swing device 1 is disposed below the belt conveyor A so that the foreign matter in the construction waste C loaded on the belt conveyor A can be easily sorted. It is installed in the rocking belt A1 of the belt conveyor (A) and the construction waste (C) is mixed by the shaking of the belt (A1).

The belt swinging device 1 includes a motor for providing rotational force, a plurality of paddle cams 11 swinging the belt A1, and a plurality of shafts to which the paddle cams 11 are inserted to transmit the rotational force of the motor ( 14) and a bearing 12 to prevent the shaft 14 from moving when the paddle cam 11 pushes the belt A1 and to rotate smoothly, and to the plurality of shafts 14. It consists of a chain gear 13 for transmitting power and a chain for transmitting power from the motor to the shaft 14.

That is, the belt swinging device 1 is composed of a plurality of paddle cams 11, while swinging the belt A1 of the belt conveyor A so that foreign matters contained in the construction wastes are in the suction device unit 2. Create a good environment for inhalation.

The belt swing device 1 is preferably attached to the belt conveyor frame of the belt conveyor (A).

The belt conveyor (A) is installed at the beginning and end of the rotating belt (A1), the guide roller (A2) for receiving the load of the belt and the load, the lower roller (A3) for receiving the load of the returning empty belt, It is composed of a belt for transmitting the rotational force to the belt conveyor frame (A4) and the above-described components are installed.

As shown in FIG. 6, the louver cyclone 41 has the lighter as the foreign matter having a low specific gravity contained in the air passing through the first selection unit 3 rises due to the pressure difference between the inside and the outside of the louver 411. It is a function that allows you to escape between).

The louver cyclone 41 has a body forming a shape, a plurality of louvers 411 through which light foreign substances escape, an air inlet 412 installed in the upper air inlet, and a foreign substance outlet 415 through which foreign substances are discharged. And an air outlet through which air is discharged, and a saddle 414 for installing the fuselage.

As shown in FIG. 7, the centrifugal cyclone 51 draws air containing the fine particles passing through the second sorting unit 4 in a tangential direction, rotates by centrifugal force, and falls down by gravity. The fine particles are collected and the air is discharged to the center pipe 511.

The centrifugal cyclone 51 is shaped into a body 516 consisting of a cylindrical portion 516a and a cone portion 516b, an air inlet 512 through which air is drawn in a tangential direction, and air begins to be discharged. A center pipe 511 which has a predetermined length down to the center of the cylindrical portion 516a, a centrifugal cyclone air outlet 513 connected to the third transfer duct 54 to discharge air from the centrifugal cyclone 51, and Only the dust collected by the saddle 515 for installing the centrifugal cyclone 51 on the support frame, the dust outlet 517 for discharging the dust collected in the lower portion of the cone portion 516b, and the dust outlet 517. It is composed of a rotary valve 514 is discharged to the differential storage box 52 and the air does not escape.

When air escapes to the dust outlet 517, the air is polluted, so it is preferable to use the rotary valve 514. When the rotary valve 514 is not used, the dust outlet 517 and the fine storage box are used. (52) should be sealed so that air does not leak from the connection part, and the differential storage box 52 cannot be replaced during operation.

The air discharged from the centrifugal cyclone air outlet 513 is connected to the duct is connected to the air outlet 53 is discharged to the atmosphere, the silencer 531 is installed within the environmental noise regulation to reduce the noise when the air is discharged It should be lifted, the air outlet 53 is preferably installed high, but it may be installed down to the bottom as shown in the drawings of the present invention according to the installation environment.

The speed of the inlet air of the centrifugal cyclone (51) is 7 ~ 15m / sec, in this range the influence on the containment rate by the gas velocity is relatively small, the inner diameter is the main factor governing the performance. The pressure loss is about 100mmH2O in the linear type when the velocity of the inlet gas is about 12m / sec, and the pressure loss is about 20% less than that in the spiral type, and the angle of the cone portion 516b is preferably 11.5 °, but the length is long. Loss is a problem and can be adjusted.

The centrifugal cyclone 51 is a device that separates particles from air by centrifugal force acting on the particles by giving a pivoting motion to particles having relatively large and specific gravity, and settles and collects dust. It is most suitable for use in finally collecting the foreign matter of the construction waste of the present invention because it exhibits a certain performance and high efficiency.

As described above, according to the present invention, the waste paper mixed in the construction waste conveyed to the belt conveyor, the waste vinyl, the remaining sand or the foreign matter which can not be used as aggregate can be sorted and classified into three types, and only the suction part is opened and sorted. As it is sealed, it is possible to prevent dust from scattering, and to increase dust collection efficiency by using two kinds of louver cyclones and centrifugal cyclones, and to collect foreign substances by type, which reduces the disposal cost of foreign substances and also improves the quality of construction wastes. It is effective to recycle aggregate.

A: Belt Conveyor A1: Belt
A2: guide roller A3: lower roller
A4: Belt Conveyor Frame C: Construction Waste
B: Foreign material sorting device 1: Belt swing device
11: paddle cam 12: bearing
13: chain gear 14: shaft
2: suction device 21: suction blower
22: suction hood 221: suction port
23: suction duct 3: first selection unit
31: Net Conveyor 311: Net
312 drum 313 blowing nozzle
314: Drum Drive Motor 315: Handrail and Work Table
316: auxiliary drum 317: take-up device
32: first foreign matter storage box 33: foreign matter chute
331: angle of repose 4: second selection unit
41: louver cyclone 411: louver
412: air inlet 413: air outlet
414: saddle 415: foreign matter outlet
42: second foreign matter storage box 43: the second transfer duct
5: 3rd selection part 51: centrifugal cyclone
511 center pipe 512 air inlet
513: centrifugal cyclone air outlet 514: rotary valve
515: saddle 517: dust outlet
52: differential storage box 53: air outlet
531: silencer 54: the third transfer duct

Claims (4)

In the foreign matter sorting and sorting device (B) for sorting and classifying foreign matters that cannot be used as waste paper, waste vinyls, fine sand, or aggregates mixed in the construction waste (C) conveyed to the belt conveyor (A),
The foreign material sorting classification device (B) is installed under the belt conveyor (A) to sort the foreign matter in the construction waste (C) loaded on the belt conveyor (A) is a belt of the belt conveyor (A) A belt rocking device (1) which swings A1) and causes the construction waste C to be mixed by rocking of the belt A1;
A suction device unit (2) through which air containing foreign substances generated in the construction waste (C) oscillated by the belt swing device (1) is sucked;
A first sorting unit 3 for sorting foreign matter having large particles contained in the air sucked by the suction device unit 2;
A second sorting unit 4 for sorting foreign matters having a low specific gravity among air and foreign matter having passed through the first sorting unit 3;
It is composed of a third screening section (5) for sorting the fine particles in the air passing through the second screening section (4),
The belt swinging device (1) is composed of a plurality of paddle cam (11) while rotating the belt (A1) of the belt conveyor (A) foreign matter contained in the construction waste is in the suction device unit (2) Inhaled,
The suction device unit 2 includes a suction blower 21 for generating suction and discharge static pressure, a suction hood 22 for sucking air and foreign substances from the belt portion, the suction blower 21 and a suction hood 22. Is composed of a suction duct 23 is connected to the suction flow path is formed,
The first selection unit 3 is a net conveyor 31 to which the foreign matter having a size of 10mm or more is attached, the first foreign matter storage box 32 for storing the foreign matter selected from the net conveyor 31, and the The foreign matter attached to the lower portion of the network conveyor 31 is composed of a foreign matter chute 33 to send to the first foreign matter storage box 32 that the suction force is weak and falling,
The size of the net 311 of the net conveyor 31 is 8 X 8mm ~ 15 X 15mm,
The netken bearing 31 is provided with a plurality of blowing nozzles 313 for removing the foreign matter attached to the mesh 311 and the drum 312 for rotating the mesh 311,
The second sorting unit 4 is such that foreign matters having a light specific gravity contained in the air passing through the first sorting unit 3 emerge between the louvers 411 while being floated by the pressure difference inside and outside the louver 411. A second transport connecting the louver cyclone 41, the second foreign matter storage box 42 storing the foreign matter collected by the louver cyclone 41, and the louver cyclone 41 at the suction blower 21. It consists of a doc 43,
The third sorting unit 5 draws air containing the microparticles that have passed through the second sorting unit 4 in the tangential direction, rotates by centrifugal force, and collects the fine particles falling down by gravity and collects the center. A centrifugal cyclone 51 through which air is discharged to the pipe 511, a differential storage box 52 for storing fine particles collected by the centrifugal cyclone 51, and clean air passing through the centrifugal cyclone 51 The discharge port 53 is discharged, and the louver cyclone 41 and the centrifugal cyclone 51 is connected to the centrifugal cyclone 51 and the air outlet 53 is connected to the third transfer duct (54) Sorting device for foreign substances
The method of claim 1,
The suction hood 22 has a structure in which the suction port 221 is formed on both sides of the belt conveyor in the advancing direction, wherein the foreign matter sorting and sorting device of the waste.
The method of claim 1,
The foreign material sorting device of the waste, characterized in that the air outlet 53 has a structure in which a silencer 531 is installed to reduce noise during air discharge.
The method of claim 1,
The foreign matter chute 33 is a foreign matter sorting device of the waste, characterized in that the angle of repose 331 of the chute in order to prevent the accumulation of foreign matters 50 ° or more.

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