JP2001079493A - Apparatus for sorting mixed construction waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the precision of sorting by sorting mixed construction waste continuously into combustibles, incombustibles, and recyclable materials for recovery and using mechanical and electric force. SOLUTION: This apparatus 1 for sorting mixed construction waste is equipped with a pneumatic screen/sorter 2, and an electrostatic sorter 4, an incombustible sorter 6, and a pneumatic sorter 7, which are placed downstream from the apparatus 2 so that the waste can be sorted accurately into combustibles, incombustibles, and recyclable materials for recovery. In order to decrease the volume of them the recyclable materials are supplied to a volume reduction/solidification device 9 arranged in the apparatus 1 to be volume- reduced and solidified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for sorting and processing construction waste, and more particularly, to a construction waste that efficiently and continuously sorts combustible, incombustible and renewable materials from construction waste. Related to sorting processing equipment.

[0002]

2. Description of the Related Art Construction mixed waste discharged at the time of dismantling or construction of a building includes concrete lump, metal, wood, and the like.
Various materials such as paper, plastics, earth and sand, etc. are mixed, and these are ultimately sorted into those to be disposed of and those to be recycled from the viewpoint of waste reduction or resource saving, and disposed of. Items to be disposed of are further sorted for incineration or landfill.

[0003] Of the mixed wastes, wood and paper are often incinerated together with plastics that can be partially incinerated. However, they have a large difference in calorific value and are incinerated during the incineration. The mixing ratio changes sequentially,
As a result, the heat collection characteristics of the incinerator change, the change in thermal stress becomes excessive, and the life of the furnace is shortened. Furthermore, due to various effects on the human body due to the generation of dioxin during the burning of plastics in recent years, incineration plants are often limited to incineration of plastics.

On the other hand, concrete blocks and earth and sand are often landfilled. However, if paper and wood are mixed at this time, they will not harden for many years, and the stability of the ground at the disposal site will be reduced. Some disposal sites refuse to accept them, as they can be damaged. In recent years, concrete lumps and earth and sand have been
It may be reused as backfill material for civil engineering work,
In such a case, wood and paper may not be reusable if contaminated, and as a result, they must be disposed of in landfills, causing the problem of acceptance at the disposal site as described above.

[0005] Metals are basically separated from waste into iron-based metals and light metals, and recovered as reusable ones. For good smelting, it is necessary to prevent impurities such as earth and sand and concrete lumps from being mixed.

For this reason, it is indispensable to sort the construction mixed waste accurately and efficiently for each target object.
A waste disposal system disclosed in Japanese Patent Application Publication No. 456 or Japanese Patent Application Laid-Open No. 10-212444 has been proposed.

As shown in FIG. 6, a processing system 10 disclosed in Japanese Patent Application Laid-Open No. Hei 5-337456 has a small mesh and a medium mesh sieve for waste materials roughly sorted in advance to a predetermined size or less. The sifting apparatus 101 in which two sieves are arranged is sorted into large lumps, medium lumps, and small lumps. It is classified as a lightweight material mainly composed of combustible materials such as plastics. At that time, small pieces and small stones of combustibles mainly remain on the sieve, and those small pieces and small stones are sent to the cyclone 103 installed on the downstream side of the sieve,
The combustibles on the sieve are sorted into pebbles and the like.

As shown in FIG. 7, the large block and the medium block each have a weight 105 having a predetermined weight and a chain portion 106.
The chain section 106 is rotated by the weight selection device 104 attached to the
Are brought into contact with each other, and are separated into a heavy object passing through the same weight and a light object removed by the same weight. The heavy object is further subjected to a magnetic force sorting device (not shown) and a manual sorting by iron-based metals,
Sorted into concrete blocks.

[0009] Further, as shown in FIG. 8, the treatment system 10 disclosed in Japanese Patent Application Laid-Open No. Hei 10-212444 first crushes the mixed waste by a crusher 111, and then removes the crushed mixed waste by an air separation device 112. , Light metals, earth and sand, etc., and combustible, lightweight materials such as paper, wood and plastic. And for the heavy objects,
Iron, light metals and earth and sand are separated by a magnetic force sorting device 113, a particle size sorting device 114, and a non-ferrous sorting device 115, and then, by a wind force sorting device 116, stones, wires and the like in a residue containing a large amount of stones, wires, etc. Sort out combustible and lightweight items.

At this time, the combustible lightweight materials are sent to the cyclone 117a on the airflow at the time of the wind separation, and the combustible lightweight materials selected immediately after the crushing are also supplied to the cyclone 117b by the airflow at the time of the wind selection. It is sent and separated into combustible and lightweight materials and various powders by the cyclones 117a and 117b. Bag filters 118a and 118b are arranged downstream of the powder outlets of the cyclones 117a and 117b. The combustible light-weight materials are carefully selected in this manner, and the selected combustible light-weight materials are reduced in volume by a volume reduction molding machine 119 and transported to a disposal site.

[0011]

By the way, in the processing system disclosed in Japanese Patent Application Laid-Open No. 5-337456, sorting is first performed by a sieve as described above. In the case where the nails are in a lying state, when the nails are lying, most of them are sorted as large or medium lump by the vibrating screen device. However, depending on the vibration of the sieve, the tips of the nails may pass through the sieve and be sorted out as small lumps. Here, in the treatment system, after sorting the small lumps, since only a sieve and a cyclone for separating sediment and combustibles are provided and there is no magnetic separation device, iron is mixed into the sediment or combustibles. It will be transported to the final disposal site as it is.
As described above, when iron is mixed into the earth and sand, the iron to be originally reused is landfilled together with the earth and sand and is not effectively used.

The large and medium lumps are then separated into light and heavy objects by a weight sorting device. At this time, the nails or bolts are relatively light and other Since the shape of the lightweight object is large, the lightweight object may slip into the lightweight object side. However, since magnetic separation is not performed even after the light-weight object is separated, iron remains mixed in the light-weight object.

[0013] Further, most of the light-weight materials are occupied by combustibles, and are eventually incinerated. However, as a pretreatment for incineration, it is necessary to secure a predetermined amount of incineration and to make the incineration easy to handle. At each incineration plant, the combustibles having various shapes or dimensions are often reduced in volume. However,
If hard irons are mixed into the light-weight material during the volume-reduction molding, the equipment provided in the volume-reduction molding machine may be damaged, which may hinder the processing of the lightweight material at the incineration disposal site. There is.

Further, since various sizes or weights of light metals and plastics are mixed in the waste,
There is a possibility that it may be mixed into each of the heavy, light, combustible, and fine particles finally sorted by sieving or weight sorting. These light metals and plastics are usually collected from waste materials and reused in many cases, but the above-mentioned prior art does not have a mechanical sorting and collecting means.

Therefore, in order to sort these light metals and plastics, it is necessary to resort to manual sorting, that is, manual sorting. However, in the manual sorting, continuous sorting of the light metals and plastics from a large amount of waste requires a large amount of manpower and is expensive.
Moreover, since the sorting operation is not objective, the sorting accuracy cannot be expected.

On the other hand, the building structure is mainly composed entirely of concrete or steel frame, and has stone walls or windowpanes or window frames on the outer wall, and furthermore, electric wires and cables are arranged inside. Various construction materials are used for each part. Therefore, the components of mixed waste discharged during construction or demolition of building structures are:
Naturally, it differs depending on the place and time of collection.

In such a case, it is necessary to change the sorting performance of the waste treatment equipment depending on the composition of the waste. However, in the above-mentioned prior art, in the wind power sorting unit, the sorting performance can be changed relatively easily by changing the air volume setting, but in the weight sorting device, a part of the weight is used. Need to be replaced or added, so that the device must be shut down for the replacement or addition. In addition, the weight sorter comes into contact with heavy objects sequentially, so that the weight is severely worn and damaged. In such a case, the weight needs to be replaced, which hinders the continuous disposal of waste. .

Further, in the processing system disclosed in Japanese Patent Application Laid-Open No. Hei 10-212444, after the heavy and light materials are separated by the wind force, the irons are separated by the magnetic force separation device because the iron is separated from the heavy material sorting system. Since it is performed only before the sorting of the fine particles by sieving and the non-ferrous metals are also performed only immediately after the sorting of the fine particles, the set air volume and the sieving of the wind sorting device performed first. Depending on the size of the sieve at the time, small diameter irons or non-ferrous metals may be fine particles or plastics, such as earth and sand or concrete waste, which is the final separated material.
It will be carried out while being mixed in paper, wood chips and the like. In addition, it is difficult to completely separate incombustible substances such as earth and sand and concrete chips from combustible substances such as plastics, paper and wood chips, though it is not preferable.

Furthermore, in the above-mentioned prior art, waste is put into a crusher and crushed to a predetermined size before being supplied to a sorting step. A wide variety of wastes will be input from soft materials to hard materials. In this crusher, a type in which a crushing blade is attached to a peripheral surface of a cylindrical drum provided in a crushing chamber is adopted, and by rotating the cylindrical drum,
The waste introduced into the crushing chamber is continuously contacted with the crushing blade and crushed. At this time, since the soft material mixed in the waste adheres to the crushing blade, the material is likely to be clogged, and the crushing performance is likely to be reduced. In addition, hard materials such as various metals and ceramics are often mixed in the waste, and the crushing blade is severely damaged, which makes the management complicated.

The present invention has been made to solve the conventional problems, and a specific object of the present invention is to continuously, efficiently, and selectively sort combustibles, non-combustibles, and renewables. An object of the present invention is to provide a sorting and processing equipment for construction mixed waste, which is performed with high accuracy and has little damage to each sorting device.

[0021]

The above object is achieved by the inventions as set forth in claims 1 to 9 of the present application. The construction mixed waste is roughly sorted out in advance to remove large-sized components, and the roughly-sorted waste is roughly 5%.
After the thickness is reduced to not more than 00 mm, the mixture is put into the construction mixed waste treatment facility of the present invention, and is sorted into each component by each of the sorting apparatuses according to the first to ninth aspects.

According to the first aspect of the present invention, combustibles, incombustibles and renewables are separated from construction mixed wastes including concrete blocks, metals, wood, paper, plastics, earth and sand, etc. through a plurality of sorting devices. A sorting facility for continuously sorting construction mixed waste, wherein the first sorting device is equipped with a sieve and a blast sorter, and first sorts fine, heavy and light materials at the same time. And a sorting and processing equipment for construction mixed waste.

According to this configuration, the first sorting device first sifts, and the fine particles are sorted under the sieve, and the large and medium lumps are sorted on the sieve. The large lumps and medium lumps on the sieve are further separated into heavy objects and light objects by the sorting air provided by the air separator provided in the sorting apparatus. According to the present invention, in the first sorting device, the fine particles are first separated, so that the mixing of the fine particles into the light-weight and heavy materials is suppressed, and the first and second sorting devices are performed downstream. It is possible to accurately sort heavy and light objects.

In addition, since the sieve and the blower are installed in the same device without being installed independently, the construction mixed waste sorting and processing equipment can be made compact as a result. Furthermore, since the sorting performance can be changed by changing the set air volume of the blower sorting machine, it is possible to easily cope with the case where the composition of the waste changes.

[0025] In the invention according to claim 2 of the present invention, the second sorting is performed for sorting metals from each of the fine, heavy and light materials sorted by the first sorting device. A magnetic separation device is arranged as the device.

The iron mixed into the construction mixed wastes ranges from large ones such as steel pieces to elongated and lightweight ones such as nails and bolts, so that the steel pieces are sorted as heavy. On the other hand, as for the nails, the tips are sorted as fine particles by dipping through the sieve of the first sorting device, or are separated by a lightweight material at the time of the wind sorting and are blown off to be sorted as a lightweight material. Sometimes. Therefore, there is a possibility that the irons may be mixed into any of the heavy, light, and fine particles.

Even in such a case, claim 2 of the present invention
According to the invention, since the magnetic force sorting device is provided in each of the heavy, light and fine-grained material sorting processes, it is possible to reliably sort and recover iron.

On the other hand, plastics are mixed in mixed wastes in various sizes, and since the plastics widely exist from soft and light to hard and relatively heavy, It may be mixed into each of the light-weight and fine-grained materials. Even in such a case, it is necessary to collect the plastics from the viewpoint of effective use of resources, or in consideration of the adverse effect on the environment that occurs when the plastics are incinerated. When recovering combustibles, it may be necessary to separate plastics. At this time, in order to selectively collect and recover only the plastics from the waste, it is advisable to utilize a property unique to the plastics, which is different from other components in the waste.

As a property different from other components of plastics, there is a chargeability. Among components other than plastics in waste, metals, wood and paper are hardly charged. Plastics have the property of being very easily charged. By utilizing the difference in the chargeability of the constituents in the waste, it is possible to accurately recover the plastics from the heavy, light, or fine particles.

In the invention according to claim 3 created in this way, in order to separate a charged material from each of the fine granules, heavy objects and light objects sorted by the first sorting apparatus, An electrostatic sorting device is provided for each of fine, heavy, and lightweight objects. The electrostatic sorting apparatus is provided with a waste receiving hopper at an upper portion, and a charged material discharging hopper and a non-charged material discharging hopper are provided below the receiving hopper with a metal bottomed cylinder interposed therebetween. Discharge electrodes are installed facing the peripheral surface of the metal-made bottomed cylinder, and a ground wire is connected to the center of the bottom of the bottomed cylinder.

Each waste sorted by the first sorting apparatus is supplied to the corresponding waste receiving hopper, and then disposed at a lower portion of each waste receiving hopper. Falling on the rotating metal cylinder. When a predetermined voltage is applied to a discharge electrode installed near the metal cylinder, the metal cylinder takes on a negative charge, but the negative charge flows through a ground line connected to the center of the bottom of the metal cylinder. As a result, the peripheral surface of the metal cylinder has a positive charge, and the easily charged plastics among the wastes have a negative charge and adhere to the peripheral surface of the metal cylinder.

On the other hand, components of the waste other than metals and plastics such as wood fall on the peripheral surface of the rotating metal cylinder through the waste receiving hopper as described above. Since the object is difficult to be charged, the object slides down along the peripheral surface of the metal cylinder in the rotation direction of the metal cylinder. Therefore, most of the wastes other than plastics such as metals or wood fall into the non-charged material discharge hopper disposed below the metal cylinder and are separated. At this time, the charged plastics further move along the rotation of the cylinder while being attached to the metal cylinder, are scraped off by a scraper provided on the lower peripheral surface of the cylinder, and the charged material at the lower part of the scraper is scraped off. It falls into the discharge hopper and is separated.

Conventionally, the sorting and recovery of the above-mentioned plastics from the waste has often relied on human power. However, if an electrostatic sorting device combining electric power and mechanical power is provided as described above, continuous and accurate plastic sorting can be achieved. Sorts can be collected separately.

[0034] In the invention according to claim 4 of the present invention, a crusher for crushing heavy materials other than irons and plastics after being sorted by the magnetic force sorting device and / or the electrostatic sorting device is arranged. It is.

In this configuration, since the crusher is disposed downstream of the magnetic sorting device and / or the electrostatic sorting device of the heavy material sorting system, iron or plastics and the like are removed, and concrete lumps are removed. A heavy load is supplied to the crusher. For this reason, unlike conventional cases, soft plastics are less likely to adhere to the crushing blade and cause clogging of the material to lower the crushing performance. Further, the contact of the crushing blade with hard irons is reduced, so that damage to the crushing blade can be suppressed.

[0036] In the invention according to claim 5 of the present invention, a wind power sorting device for sorting combustible materials from light-weight materials sorted by the magnetic force sorting device and / or the electrostatic sorting device is arranged. In the magnetic sorting device, magnetic irons are collected, and in the electrostatic sorting device, charged plastics are collected, but wood, paper, or light metals are not basically collected.

In such a case, in order to separate combustible materials such as wood and paper and light metals from light-weight materials separated by the magnetic force sorting device and / or the electrostatic sorting device, the combustible materials include:
Since the specific gravity is smaller than that of light metals, and the difference in specific gravity between the two is relatively large, a wind separator is installed downstream of the magnetic separator or the electrostatic separator in the lightweight sorting system as in the invention according to claim 5 of the present invention. Advantageously, said combustibles are sorted out.

[0038] The wind power sorting apparatus includes a blower, a sorting air injection nozzle, a wind sorting screen, and a combustible / light metal discharge hopper. The sorting plate is disposed below a downstream end of a conveyor for transporting the light-weight material after being sorted by the magnetic force sorting device and / or the electrostatic sorting device, and the light-weight material that is transported by the conveyor and reaches the conveyor end. Falls on the sorting plate. Sorting air is blown from the blower to the lightweight object through a sorting air injection nozzle, and the combustible material of light wood and paper is blown away and stored in a combustible material discharge hopper installed in front and below the sorting plate. Is done. The sorting plate is formed of an inclined plate that is inclined forward and upward, and the light metals that are not blown off by the sorting air roll down from the sorting plate due to their own weight, and the light metals discharge hopper arranged below the rear end of the sorting plate. Sent.

According to the present invention, in the light-weight material sorted by the above-mentioned wind sieve combined sorting device, which is the first sorting device arranged upstream of the above-mentioned wind sorting device, and the magnetic force sorting device or the electrostatic sorting device. Since the material of the components is considerably limited, it is possible to accurately sort and recover the combustibles in the lightweight object even with such a relatively simple wind separator.

For this reason, even in the case where the volume of combustible materials is reduced using a volume reducing machine before incineration in an incinerator, the combustible materials are carefully selected and collected, so that light metals can be transferred to the volume reducing machine. Mixing is suppressed, and wear and damage of the volume reducer can be prevented.

According to a sixth aspect of the present invention, there is provided a method for transporting fine particles between the sieve of the first sorting device and the magnetic force sorting device for fine particles, wherein The conveying means of the objects are merged, and the magnetic sorting device sorts the irons contained in the fine granules and the crushed materials.

The waste supplied to the crusher includes, in addition to the concrete lump, iron chips which are scattered in the concrete lump and pass through the magnetic separation device, or iron cores as building reinforcing materials remaining in the concrete lump. May be included,
The crushed material crushed by the crusher may contain iron. However, if a magnetic separation device is separately installed for these so-called residual iron components, it becomes excessive equipment and is not economical. On the other hand, since the magnetic force sorting device is installed in any of the above-mentioned heavy, light-weight or fine-grained material sorting systems, if it is supplied to any one of the magnetic force sorting devices, no extra magnetic force sorting device is provided. In both cases, it is possible to selectively collect the irons.

The concrete mass crushed by the crusher becomes concrete flakes, and is finally landfilled together with earth and sand which are the main constituents of fine particles sieved by the first sorting device. It is often used as a backfill for civil engineering work. Therefore, in such a case, as in such a configuration, the crushed material transport path after the crushing and the transport path upstream of the magnetic separation device for the fine particles are joined, and the crushed material is finely divided. It is more economical to supply the fine particles together with the material to a magnetic separation device for fine particles to collect the residual iron.

On the other hand, the fine particles and the crushed materials that have been subjected to the magnetic force separation contain a large amount of concrete particles and earth and sand, while depending on the size of the sieves of the first sorting device or the set air volume of the blower sorting machine. In some cases, wood and paper that are not magnetically and electrostatically separated may be mixed. The concrete grit and earth and sand are finally landfilled,
Or it is often used as backfill material for civil engineering work, but if wood and paper were mixed in during such use,
Since the backfill material may not solidify for a long time,
At the time of sorting and collecting the sediment and the like, the user is required to have considerable accuracy so that the wood and the like are not mixed.
Moreover, when the earth and sand is used as a backfill material for civil engineering work, the backfill material is often used separately for each dimension in order to secure a predetermined strength of a building. The user may be required to further separate the fines and crushed materials into concrete flakes and earth and sand having different dimensions on the waste treatment facility side.

However, in order to satisfy the user's requirements, the separation process requires multiple steps, and in order to increase the accuracy of separating the wood and the like from earth and sand, a sorting device is inevitable. Conventionally, the size of the sorting apparatus has been increased, which has often caused a problem of an installation space for the sorting apparatus. Therefore, they thought that a means for solving such a problem was necessary.

In the invention according to the seventh aspect of the present invention, a noncombustible material screening apparatus for separating concrete, sediment, and the like from the fine particles and crushed materials other than the irons that have been magnetically separated. have.

According to such a configuration, the incombustibles screening apparatus is integrally provided with a sieve screening apparatus and a wind screening apparatus equipped with a blower, and removes sediment and concrete waste not magnetically separated by the magnetic screening apparatus. The fines and crushed material containing a large amount are first sent to a sieve sorting apparatus. In the sieve sorting device, fine-grained sediment is sorted under the sieve, and small-sized concrete particles are sorted on the sieve.At this time, the fine-grained material and the like are completely separated by the upstream sorting device. Wood that could not be recovered,
It contains a small amount of combustibles such as paper.

For this reason, a part of the sorting air from the wind sorting device is supplied to the sieve sorting device from the lower side of the device, and the combustibles on the sieve are suspended. Then, the floating combustibles are sent from a floating combustible discharge port opened at an upper portion of the incombustible substance selection device to a dust collecting device provided separately from the device, and are collected.

Here, at the time of collecting the combustibles, the air volume of the selected air is set so as to prevent relatively lightweight earth and sand from floating and being collected together with the combustibles by the selected air. Set relatively low.

Therefore, the concrete flakes on the sieve contain a small amount of combustible materials such as wood and paper.
Furthermore, it is sent to a wind-screen sorter adjacent to the sieve sorter. At this time, the sieve sorting device is slightly inclined, and a vibrator is attached to a lower portion of the sieve sorting device, so that the concrete waste and the like are quickly supplied to the wind power sorting device.

The combustibles float by the action of a blower provided in the wind separator, are separated from the concrete flakes, and are blown off to a combustible discharge outlet provided at the lower part of the incombustible separator to collect the combustibles. Is done.

The sediment and the concrete slag are respectively discharged to a sediment discharge port below the sieve sorting device and a concrete slag discharge port below the wind power sorting device and collected.

By installing the incombustible substance selection device in this manner, the sediment and the concrete can be separated and recovered with high accuracy, and since the amount of combustible materials such as wood and paper is small, the recovered material is recovered. The reclaimed earth and sand can be recycled as a backfill material for civil works with excellent usability and stability.
Furthermore, even if it has such a sorting and collecting function, the sieve sorting device and the wind sorting device are arranged in one device, and as a result, the waste sorting and processing equipment can be made compact.

The invention according to claim 8 of the present invention has a recyclable material sorting apparatus for sorting recyclable materials from light-weight materials that have been subjected to wind separation by a blower separator. The first
The light metals and plastics contained in the light-weighted products after the air separation, which is the second sorting device, are finally sorted and sent to a recycling plant as renewable materials, and then used as industrial materials or as products using these materials. Will be played. At this time, it is basically necessary to sort and collect the renewable materials for each constituent material, that is, for each metal or each plastic. On the other hand, when the sorting and collection is performed in the recycling plant, for example, when the melting and sorting of each component in the renewable material is performed using the difference in the melting point of the components in the recycling plant, the waste sorting and processing equipment side. It is not necessary to separate renewable materials in which different materials are mixed.

Therefore, in such a case, only the wood and paper to be incinerated without being recycled from the light-weight material should be selected, and the remaining renewable material should be collected as one. At this time, sorting of light-weight materials sorted by the first sorting device, utilizing the difference in specific gravity between non-renewable wood and paper and renewable metals and plastics The renewable material can be collected only by arranging the wind separation device in the system.

According to the ninth aspect of the present invention, there is provided a volume reducing and solidifying device for reducing the volume of the renewable material after being sorted by the renewable material sorting device. The renewable materials of plastics and metals selected from the renewable material sorting device include different materials mixed in various shapes or sizes. For this reason, when the renewable material is loaded or packed as it is when transported to the recycling plant, the volume of the loaded or packed product is simply increased by including extra voids and transported. Efficiency is reduced.

Therefore, in such a configuration, in order to reduce the gap between the components of the renewable material finally sorted and recovered and to reduce the volume, a volume reduction solidification device is provided downstream of the renewable material selection device. It is provided with. The volume reducing and solidifying device has a screw disposed inside the device, and by rotating the screw, compresses the renewable material supplied into the device to reduce and solidify the volume. The plastics and light metals that are the main components of the renewable material are soft,
The volume can be easily reduced by an external force, and can be easily performed with relatively little power. Further, at the time of the volume reduction, frictional heat is generated inside the volume reduction device due to friction between the screw and the renewable material, so that the plastics are softened, and therefore, the adhesive effect of the plastics is reduced. Works to obtain a stable fixed state of the reduced volume.

[0058]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition,
This embodiment is not limited to construction mixed waste as long as it is a waste treatment facility that sorts combustible, non-combustible, or renewable from waste, and may be used as another industrial waste or municipal solid waste sorting facility. Applicable.

FIG. 1 shows a construction waste sorting / processing system according to a representative embodiment of the present invention. The construction mixed waste is roughly sorted out in advance to remove large-sized components, and the roughly-sorted waste is roughly 500
mm or less, and then supplied to the sorting equipment 1. The waste is first supplied to the wind-screen sieve-sorting apparatus 2 shown in FIG. Large and medium lump. The fine granules are mixed with the sieve 22
Fall into the fine-grained material outlet 27a at the lower part of the
Go to

At this time, the sieve 22 and the wind separation plate 23 are slightly inclined so that the movement is performed promptly.
Further, vibrators 28a and 28b are provided below the sieve 22 and the wind separation plate 23, respectively.

A first blower 24a is provided below the wind separation plate 23, and a slit 25 for jetting air from the blower 24a is provided at the rear of the separation plate 23. I have. For this reason, when the large lump and the medium lump reach the rear part of the sorting plate 23, the air blown from the blower 24a causes the light weight of the large lump and the medium lump to float. Further, a second blower 24b is provided below the wind separation plate 23, and a separation air jet nozzle 26 is disposed at a tip end of the wind separation plate 23. A ventilation passage is provided between the second blower 24b and the nozzle 26, and air from the second blower 24b is ejected from the nozzle 26. At this time, the nozzle 26 is directed obliquely upward and forward, and blows the floating lightweight object forward of the sorting device 2 with the wind sieve. A light material discharge port 27c is provided below and in front of the sorting device 2, and the blown light goods are sent to a downstream light material sorting system via the discharge port 27c.

On the other hand, the waste that does not float and is not blown off by the two blowers 24a and 24b, that is, heavy material, moves to the tip of the sorting plate 23 and falls due to the inclination and vibration of the sorting plate 23. A heavy load discharge port 27b is provided below the leading end of the sorting plate 23, and the heavy load dropped from the leading end is supplied to a downstream heavy load sorting system via the discharge port 27b.

In the sorting operation of the sorting device 2 with the wind sieve, the sieve 22 is used so that the fine particles contain a large amount of earth and sand.
Is determined. The air volume of the blowers 24a and 24b is determined by the type and weight of the heavy and light objects to be sorted. In the present invention, the air volume is set so that concrete blocks and irons are included as heavy objects, and wood, paper, plastics, and light metals are included as light objects. Regarding the lightweight object, the first and second blowers 24a,
As described above, the separation is performed by separately performing the floating and the blowing using the 4b. Therefore, if the set air volume of each of the selection air is appropriately adjusted, a considerable selection accuracy can be secured. In addition, according to the wind-screen sifting / sorting apparatus 2, heavy and light materials are sorted after sieving, so that mixing of earth and sand into the heavy materials and the like can be suppressed.

In this way, the above-mentioned sorting device 2 with wind sieve is used.
Further sorting for each object performed downstream of the apparatus is performed efficiently and accurately. Moreover, since the sieve and the wind sorting device are integrated, the waste sorting equipment 1 can be made compact as a result, which is particularly effective in a treatment plant where the installation place is limited.

The construction mixed waste has different contents of construction work or demolition work when the place of collection and the date of collection are different.
The composition of the waste may change. For example, at the beginning of the dismantling of a building, there are many concrete blocks, stones, and window frame materials covering the outer wall of the building, but when the dismantling proceeds to some extent, steel pieces as framing members of the building or laying inside the building are used. Waste wire and cable, wood chips and paper chips increase.

In such a case, it is convenient that the sorting performance can be freely changed. For example, in the case where a light metal is included in the heavy object side, the sorting operation on the downstream side can be performed more efficiently by changing the sorting object. In the present invention, as described above, since the sorting of the light and heavy objects is performed by the blowers 24a and 24b, the sorting performance can be easily changed by adjusting the air volume.

The fine, heavy and light materials sorted by the wind sieve combined sorting device 2 are conveyed to respective sorting systems by a conveyor. Each sorting system is provided with a magnetic force sorting device 3, which sorts and collects irons in each of the sorted items. Iron discarded from construction sites includes a wide range from large and heavy materials such as cut pieces of steel to small and relatively lightweight materials such as nails, bolts or scrap iron. In addition to the above-mentioned heavy materials, such irons are included in fine-grained materials by sifting through a sieve, or mixed in with the light-weight material and mixed in the airflow of the sorting air into the light-weight material side. Since the mixing of iron into the fine or light-weight material is considerable, it is useful to sort and recover the iron from the viewpoint of resource saving and energy saving in recent years.

As described above, since the light-weight materials sorted by the first sorting device 2 contain a large amount of combustible materials such as wood, paper or plastics, they are basically incinerated at the incineration plant. Although often treated, the combustibles are usually reduced in volume to reduce the volume of the treated material before incineration. The volume reducing machine for the volume reduction is generally a screw compression type or a crush volume reduction type.
The volume reducer is often selected for reducing the volume of wood, paper, and plastics. Therefore, if hard iron is mixed, the screw and the crushing blade are damaged. For this reason, arranging the magnetic force sorting device in the light-weight sorting system and recovering iron from the light-weight material is also effective from the viewpoint of preventing damage to the volume reducing machine.

On the other hand, as for the plastics, similarly to the irons, mixed wastes of various sizes are mixed, and when the plastics are hard, the specific gravity becomes relatively large. The plastics may be mixed into each of the heavy, light, or fine particles sorted by the first sorting device 2 like the irons. Plastics are often harmful to the human body when incinerated. Therefore, plastics are often separated from combustible materials such as wood and paper and used as recycled products. For this reason, it is also essential to separate and collect the plastics from the mixed waste.

Conventionally, in such a case, in order to sort plastics, for example, a multi-stage wind separation device is used in consideration of a wide specific gravity of plastics,
Or they often depended on human power. However, when the wind separation device is multi-staged, there is a problem of installation space, or in the case of separation by human power, that is, in the case of manual selection, not only the cost is increased, but also the subjectivity of the separation worker is included, and the objectivity is not secured. For this reason, sorting accuracy cannot often be secured. Further, in the manual sorting, the sorting operation has to be stopped at night, which often hinders the continuous disposal of waste.

Therefore, in such a case, a method of separating and recovering only the plastics from the mixed waste by using a property different from other components in the wastes of the plastics is adopted. It is better to do it. The characteristics of plastics that differ from other wastes are that among metals other than plastics in the mixed waste, metals, wood and paper are hardly charged, while plastics are very charged. It has the property of being easy. By utilizing the difference in the chargeability of each waste in the mixed waste, it is possible to accurately recover plastics from the heavy, light, or fine particles.

Therefore, in the present invention, an electrostatic sorting device 4 shown in FIG. 3 is arranged downstream of each of the magnetic force sorting devices 3 for each of the fine, heavy and lightweight sorting systems. Have been. Each electrostatic sorting device 4 is provided with a waste receiving hopper 41 at an upper portion, and below the receiving hopper,
Metal bottomed cylinder 4 provided with a scraper 46 on its peripheral surface
2, a charged material discharge hopper 45a and a non-charged material discharge hopper 45b are provided. Further, a discharge electrode 43 is provided facing the peripheral surface of the metal bottomed cylinder 42, and a ground wire 44 is connected to the center of the bottom of the bottomed cylinder 42.

The non-iron wastes not separated and collected by the magnetic force sorting device 3 of each sorting system are supplied to the corresponding waste receiving hoppers 41, and then are disposed at the lower portions of the hoppers 41. To fall on the peripheral surface of the rotating metal cylinder 42 with the center of the cylinder horizontal. A voltage is applied between the metal cylinder 42 and the discharge electrode 43, and the metal cylinder 42 and waste on the peripheral surface of the cylinder 42 are exposed to negative charges. At this time, the metal cylinder 42
Since the ground line 44 is connected to the center of the bottom, negative charges flow from the metal cylinder 42 to the ground line 44,
Takes a positive charge on the circumference of. On the other hand, among the wastes on the circumference of the cylinder 42, the plastics are easily charged and have a negative charge, and thus adhere to the peripheral surface of the metal cylinder 42 having the positive charge.

On the other hand, among the waste, components other than light metals or plastics such as wood are also used as the metal cylinder 4 rotating through the waste receiving hopper 41 as described above.
However, these wastes are hardly charged and do not adhere to the peripheral surface of the metal cylinder 42. Therefore, the metal cylinder 42 slides down in the rotation direction of the metal cylinder 42 along the peripheral surface thereof. For this reason, most of the materials other than the light metals and the plastics such as wood fall into the non-charged material discharge hopper 45b disposed below the rotating side of the metal cylinder 42 and are separated.

At this time, the plastics are circulated along the rotation of the metal cylinder 42 while adhering to the peripheral surface of the metal cylinder 42, and are scraped by a scraper 46 provided facing the peripheral surface of the metal cylinder 42. Scraped off and the scraper 4
6 and fall into the charged material discharge hopper 45a at the lower portion to be separated.

As described above, according to the present invention, it is possible to objectively and continuously sort plastics by combining electric force and mechanical force. In addition to ensuring sorting accuracy,
Even if the amount of waste is large, the metal cylinder 42
Can be easily adjusted by changing the rotation speed of
The device is rarely increased in size.

On the other hand, the heavy objects sorted by the first sorting apparatus 2 contain a large amount of concrete lumps in addition to metals, and the concrete lumps eventually become
Used as backfill material for civil engineering work or landfilled. However, since the concrete mass has a relatively large size, it is difficult to handle or the landfill capacity becomes large as it is. For this reason, a crusher is attached to this type of waste sorting equipment in order to crush the large concrete block into small blocks.

In a conventional waste treatment facility, waste is often crushed at first, and therefore various kinds of waste, from soft to hard, are put into a crusher in a mixed state. The crusher employs a rotary drum type, a shredder type, or a hammer type. In any of the types, soft plastics adhere to the crushing blade or the hammer surface, and clogging of the material occurs, resulting in crushing performance. In many cases, the crushing blade or the like comes into contact with hard iron and is damaged, and the management of the crushing machine is complicated.

Therefore, in the present invention, a crusher 5 is installed on the downstream side of the electrostatic sorting device 4 of the heavy material sorting system,
After separating and recovering irons and plastics by the magnetic force sorting or the electrostatic sorting, the heavy materials are crushed. As a result, the crusher is supplied with a heavy load containing a large amount of concrete mass, which is a normal crushing target, and the crusher 5 lowers the crushing performance or damages the crushing blade. Less things. Furthermore, since the object to be crushed is specified, a relatively inexpensive crusher can be employed.

The waste supplied to the crusher 5 includes, in addition to the concrete lump, iron swarf that is scattered in the concrete lump and passes through the magnetic separator, or the concrete lump contains building reinforcing materials. Since the iron core may be contained, the crushed material crushed by the crusher may still contain a small amount of iron. In such a case, it is preferable to recover iron from the viewpoint of effective use of resources as described above, but it is economically preferable to provide a separate magnetic separation device for these so-called residual irons. In addition, in a disposal site where the site is limited, the installation of this additional magnetic separation device may be hindered.

Therefore, in such a case, as in the present embodiment, the crushed material is supplied to any one of the magnetic force sorting devices 3 arranged in the sorting system for fine, heavy or light materials. If this is the case, it is possible to recover the irons without additional facilities. At that time, the main component of the crushed material is concrete flakes, and finally the concrete flakes are reclaimed together with fine-grained earth and sand or reused as backfill material for civil engineering work. In the present embodiment, the crushed material is supplied to the conveyance path of the fine particles, and the irons mixed into the crushed material by the magnetic separation device 3a for the fine particles are also used in the present embodiment. It will be sorted and collected.

On the other hand, the fine particles and crushed materials from which irons have been removed by the magnetic separation device 3a contain a large amount of earth and sand and concrete, while the sieves of the sieve 22 of the first separation device 2 Depending on the size or the set air volume of the blower sorter 24, light metals, wood, and paper that cannot be sorted out by magnetic force sorting and electrostatic sorting may be mixed.

As described above, the earth and sand and concrete are often landfilled or used as backfill material in civil engineering work. If mixed, the wood or the like does not solidify for a long time, so that the stability of the landfill site and the backfill material is impaired. For this reason, when trying to use the fine granules and crushed materials as a landfill material or a backfill material, separation accuracy is often required so that wood or the like is not mixed into the fine granules or the like as much as possible. Further, when earth and sands and concretes are used as the backfill material, the backfill material may be used in a predetermined ratio and then mixed at a predetermined ratio in order to secure a predetermined strength. In some cases, the waste treatment facility is required to sort the fine particles and the like into predetermined dimensions.

However, in order to recover the wood or the like with high accuracy, it is natural that the sorting apparatus is often increased in size or multi-stage, and conventionally, the sorting accuracy is limited due to the limitation of the installation space of the waste sorting equipment. In many cases, it was not possible to install a wind separation device that satisfies the requirements. For this reason, it has often been necessary to collect wood and the like by manual sorting in the past. In addition, when the user is required to separate the size of the fine particles or the like, the problem of the installation space is further promoted.

Therefore, the present embodiment has a function of recovering combustible materials such as wood from the fine particles and crushed materials, and further, has a function of dimensionally separating fine-grained earth and sand and small-sized concrete chaff. As a compact sorting device, a non-combustible material sorting device 6 shown in FIG. 4 is arranged downstream of the fine-particle magnetic sorting device 3a.

The incombustibles screening device 6 includes a sieve screening device 61.
And a wind separation device 62 provided with first and second blowers 63a and 63b. The fine particles and the crushed material are first sent to the non-combustible material selection device 6 by the waste material at the top of the device 6. Supplied from the receiving port 64, the sieve sorting device 61 first sorts the fine-grained earth and sand to be sieved and small concrete pieces on the sieve. The sediment falls into the fine particle discharge port 65a at the lower part of the sieve sorting device 61, while the concrete flakes move to the wind sorting plate 66 of the wind sorting device 62 adjacent to the sieve sorting device 61. .

At this time, a part of the sorting air from the blower 63a provided in the wind sorting device 62 is
1 is sent from the lower part of the same device 61 to float the combustible material such as wood in the fine granules and crushed material. The floating combustibles are in the upper part of the incombustibles screening device 6 and are adjacent to the waste receiving port 61.
7b is sent to a dust collector (not shown) and collected.

Here, when recovering the combustibles, the air volume of the selected air is relatively low so that relatively light earth and sand is not floated by the separated air and collected together with the combustibles. Is set low.

Therefore, the concrete flakes on the sieve contain a small amount of combustible materials such as wood and paper, so that the concrete flakes on the sieve are further adjacent to the sieve sorting device 61. It moves to the wind separation plate 66 of the wind separation device 62.

At this time, the sieve sorting device 61 and the wind sorting plate 66 are slightly inclined so that the movement is performed quickly, and the sieve sorting device 62 and the wind sorting plate 6 are further inclined.
6 are provided with vibrators 68a and 68b, respectively.

The first blower 63a is provided below the wind separation plate 66, and a slit 68 for ejecting air from the blower 63a is provided at the rear of the separation plate 66. I have. Therefore, when the concrete scraps reach the rear part of the sorting plate 66, the air sent from the blower 63a causes the combustibles such as wood contained in the concrete scraps to float. Further, a second blower 63b is provided below the wind separation plate 66, and a separation air jet nozzle 69 is disposed at a tip end of the wind separation plate 66. A ventilation passage is provided between the second blower 63b and the nozzle 69,
The air from the blower 63b is blown out from the nozzle 69.
At this time, the nozzle 69 is directed obliquely upward and forward, and the floating lightweight object is collected by the incombustible substance selection device 6.
Blow off ahead. In front of and below the sorting device 6,
There is a combustible material discharge port 65c, and the blown-off combustible material is discharged from the discharge port 65c.

On the other hand, concrete that does not float and is not blown off by the two blowers 63a and 63b is
Due to the inclination and vibration of the sorting plate 66, the sorting plate 66 moves to its tip and falls. A concrete spout 65b is disposed below the tip of the sorting plate 66, and the concrete that has dropped from the tip is discharged from the spout 65b.

As described above, the incombustibles screening device 6 combines the sieve screening and the wind screening to separate and collect sediment and concrete from the fine granules and crushed materials with one device, Since it is possible to separate combustible materials such as wood contained in both the soil and the concrete in a small amount, the size of the apparatus can be made relatively small, and as a result, the waste sorting equipment 1 can be made compact. It is particularly effective in a treatment plant where the installation place is limited.

[0094] Furthermore, the separation can be performed with considerable accuracy by finely adjusting the sieve mesh size and the set air volume of the sorting air. It is possible to play as.

On the other hand, the light materials sorted by the first sorting device 2 are separated and collected by the magnetic force sorting device 3c and the electrostatic sorting device 4c arranged in the lightweight sorting system. You. Since light-weight materials from which irons and plastics are separated contain a large amount of combustible materials such as wood and paper, they are often incinerated at an incineration plant in the end. However, the light-weight materials after the irons and the like have been separated contain a considerable amount of light metals having no magnetism or chargeability in addition to combustible materials of wood and paper, and the light-weight materials containing the light metals contain the light-weight materials. The material will be delivered to the incinerator as combustible.

On the other hand, in the incineration plant, the light-weight material is reduced as a pre-incineration treatment in order to reduce the treatment capacity of combustible materials. In many cases, the design is not made in consideration of the mixture of the types. In such a case, the light metals mixed into the light-weight material may come into contact with the volume reducer or the crusher, and the equipment may be worn or damaged. May cause problems.

Therefore, it is necessary to further separate light metals from combustible materials such as wood and paper from the light materials after the irons and plastics are separated and recovered. In this case,
Since the difference in specific gravity between light metals and combustible materials of wood and paper is relatively large, even a relatively simple wind separator 7 as shown in FIG. 5 can accurately collect combustible materials from the lightweight materials. It is possible.

The wind power sorting device 7 has a wind power sorting plate 71 whose front side is somewhat higher, and
In the vicinity of 1, a blower 72 and a sorting air injection nozzle 73 connected to the blower 72 are provided, and a combustible discharge hopper 74a is provided below a front end of the sorting plate 71,
A light metal discharge hopper 74b is provided below the rear end of the sorting plate 71. The light-weighted material after the electrostatic sorting is conveyed by the light-weighted material conveyer 75 and, when reaching the end of the conveyor 75, falls onto the sorting plate 71 disposed below the end. Then, sorting air from the blower 72 installed near the sorting plate 71 is jetted toward a lightweight object on the sorting plate 71 via the air nozzle 73.

At this time, the wood and paper having a low specific gravity among the light-weight objects are blown off by the jetting of the sorting air and crawl up the inclined sorting plate 71. When the front end of the sorting plate 71 is reached, the wood and paper fall below the same end. Certain combustible discharge hopper 74
Fall to a. On the other hand, light metals having a higher specific gravity than this are not blown off by the sorting air, but fall by their own weight to a light metal discharging hopper 74b below the rear end of the sorting plate 71 to 74b.

In the present invention, the components in the light-weight material are considerably limited because they are subjected to sieving, wind, magnetic or electrostatic sorting as pretreatment of mixed waste. Even with a relatively simple wind separation device 7, it is possible to accurately separate and recover combustibles and light metals in the light-weight objects.

On the other hand, the light-weight materials immediately after being sorted by the first sorting device, that is, the sorting device with wind sieve 2, contain a considerable amount of light metals and plastics as described above. The renewables are sorted and recovered by a waste treatment facility, and are often brought into a recycling factory and recycled as industrial materials or as products using the same.In the case of the recycling, In a recycling factory, it is common to use the renewable material such as light metals or plastics after melt-selection.

At the time of the above-mentioned melting selection, even if different materials are mixed in the processed material, depending on the recycling plant, a melting furnace for melting and separating each material by utilizing the difference in melting point of each material. In many cases, it has a magnetic separation device for recovering irons. Therefore, in such a case, it is not necessary to separately and separately collect the renewable materials in the lightweight material in which different kinds of materials are mixed on the waste sorting and processing equipment side. In addition, it is sufficient to separate and remove only the wood and paper that are not reused from the lightweight material.

Therefore, according to the present invention, the first sorting device 2 is used as a sorting device in the case where plastics and metals are collectively collected as renewable materials without being individually separated from the light-weight materials. The recyclable material selection device 8 is installed on the light-weight material discharge side. In this case, the renewable material selection device 8
The form of is a simple wind sorter shown in FIG. 5 utilizing the difference in specific gravity between wood and paper, which are non-renewable, and renewables of metals or plastics as in this embodiment. Is preferred. The set air volume for separating the renewable material from wood and paper is adjusted so that soft plastics having a relatively small specific gravity do not enter the non-renewable material side of wood and paper. By doing so, wood and paper may be mixed in a small amount on the regenerated material side, but in a recycling factory equipped with the melting furnace, even if a small amount of non-renewable material is mixed, There is no hindrance to the selection, and strict recovery accuracy is rarely required on the waste sorting and processing equipment side. Here, the renewable materials sorted and collected from the renewable material sorting device 8 are finally transported to a recycling factory as described above and subjected to a regeneration process, but the renewable materials have various shapes or dimensions. Since the main components are mixed and light weight materials such as plastics and light metals, the bulk is increased. In such a case, if the renewable material is loaded or packed as it is for the transportation, an extra space is included, and the bulk of the loaded or packed material is simply increased to reduce the transportation efficiency. Let me do it.

Therefore, in the present invention, a volume reducing and solidifying device 9 is provided downstream of the renewable material sorting device 8 in order to reduce the volume of the renewable material finally sorted and recovered. The volume reducing and solidifying device 9 according to the present embodiment has a screw disposed therein, and compresses and reduces the volume of the renewable material supplied into the device 9 by rotating the screw.

The light metals contained in the renewable material are relatively soft and easily deform, and after deforming, retain their shapes and do not return to their original shapes if left alone. Moreover, at the time of the volume reduction compression operation, frictional heat is generated due to friction between the screw and a renewable material,
The inside of the device 9 reaches a temperature at which the plastics soften. For this reason, the plastics function as a binder for fixing the compressed light metals, so that a stable fixed state of the reduced volume can be obtained.

The volume reducing and solidifying device 9 is used to reduce the volume of the plastics after the electrostatic sorting or the light metals after the wind sorting. It may be installed on the light metal discharge side of the sorting device 7 as well.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a construction mixed waste sorting system according to the present invention.

FIG. 2 is a structural explanatory view showing a sorting device combined with a wind sieve installed in the processing system.

FIG. 3 is a structural explanatory view showing an electrostatic sorting device installed in the processing system.

FIG. 4 is a structural explanatory view showing a noncombustible substance screening device installed in the processing system.

FIG. 5 is a structural explanatory view showing a wind power sorting device installed in the processing system.

FIG. 6 is an explanatory diagram showing a conventional first waste sorting system.

FIG. 7 is a structural explanatory view showing a gravity sorting device installed in the processing system.

FIG. 8 is an explanatory diagram showing a second waste sorting system in the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Construction mixed waste sorting equipment 2 Wind sieve combined sorting equipment 3a, 3b, 3c Magnetic sorting equipment 4 Electrostatic sorting equipment 5 Crusher 6 Non-combustibles sorting equipment 7 Wind sorting equipment 8 Combustibles sorting equipment 9 Volume reduction solidifier 10 Conventional first waste treatment system 11 Conventional second waste treatment system 21 Waste supply port 22 Sieve part 23 Wind separator 24a First blower 24b Second blower 25 Slit part 26 Sorting air jet nozzle 27a Fine particle discharge Outlet 27b Heavy-weight discharge outlet 27c Light-weight discharge outlet 28a Fine-grain-side vibrator 28b Heavy-weight-side vibrator 28c Light-weight-side vibrator 29 Sorting air disposal port 41 Receiving hopper 42 Metal cylinder 43 Discharge electrode 44 Ground wire 45a Charged material Discharge hopper 45b Uncharged material discharge hopper 46 Scraper 61 Sieve sorting device 62 Wind power sorting device 63a First blower 63b 2nd blower 64 Waste receiving port 65a Fine-grained substance discharge port 65b Concrete waste discharge port 65c Combustible substance discharge port 66 Wind separation plate 67a, 67b Floating combustible discharge port 68a-68c Vibrator 69 Air injection nozzle 71 Wind separation plate 72 Blower 73 Sorting air injection nozzle 74a Combustibles discharge hopper 74b Light metal discharge hopper 75 Inlet side lightweight material transfer conveyor 101 Screening device in conventional first waste disposal system 102 Screen wind separation device 103 Cyclone 104 Weight screening device 105 Heavy material 105 Sorting weight 106 Rotating chain curtain 111 Crusher in conventional second waste treatment system 112 First wind sorter 113 Magnetic force sorter 114 Particle size sorter 115 Non-ferrous sorter 116 Second wind sorter 117a, 117b Cyclone 118a 118b bug filter 119 volume reduction molding machine

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yasuhiro Arimoto 2-3-6 Akasaka, Minato-ku, Tokyo F-term (reference) in Komatsu Manufacturing Co., Ltd. 4D004 AA46 AC05 BA02 BA05 BA07 CA03 CA04 CA07 CA09 CA23 CB05 CB13 CB15 CB43 CC02 4D021 FA02 FA09 GA03 GA08 GA12 GA17 GA23 GA25 GA30 GB01 GB03 HA01 HA10 4D054 GA02 GA04 GA09 GB01

Claims (9)

[Claims] 1. Combustible materials from construction mixed waste including concrete blocks, metal, wood, paper, plastic, earth and sand, etc.
A sorting treatment facility for continuously sorting construction mixed waste through non-combustible and renewable materials through a plurality of sorting devices, wherein the first sorting device includes a sieve and a blast sorter,
A sorting and processing equipment for construction mixed waste, which first sorts fine, heavy and light materials at the same time. 2. A second sorting device includes a magnetic force sorting device for sorting iron from each of the fine, heavy and light materials sorted by the first sorting device. 2. A facility for sorting and processing construction waste according to claim 1. 3. A second sorting device includes an electrostatic sorting device for sorting a charged material from each of the fine, heavy, and light objects sorted by the first sorting device. 3. The facility for sorting and processing construction waste according to claim 1 or 2. 4. The construction mixer according to claim 2, further comprising a crusher for crushing heavy materials other than irons and plastics after being separated by the magnetic separation device and / or the electrostatic separation device. Waste sorting equipment. 5. The construction mixed waste according to claim 2 or 3, further comprising a wind separator for separating combustibles from the light-weight materials sorted by the magnetic separator and / or the electrostatic separator. Sorting equipment. 6. A method for transporting the crushed material crushed by the crusher into a means for transporting fine particles between the sieve of the first sorting device and the magnetic force sorting device for fine particles, 5. The facility for sorting and processing construction waste according to claim 4, wherein the irons contained in the fine particles and the crushed material are sorted by a magnetic force sorting device. 7. The construction mixed waste waste according to claim 6, further comprising a noncombustible material screening device for separating concrete, sediment, and the like from the fine particles and crushed materials other than irons that have been magnetically separated. Sorting equipment. 8. The construction mixed waste sorting equipment according to claim 1, further comprising a recyclable material sorting device for sorting recyclable materials from light-weight materials after air sorting by a blower sorter. 9. The construction mixed waste sorting equipment according to claim 8, further comprising a volume reducing and solidifying device for reducing the volume of the renewable materials sorted by the renewable material sorting device.