JP2013017983A - Rubble sorting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate taking-out of floats by avoiding the situation of damage to equipment due to rubble and to easily and smoothly perform taking-out of sediments by sorting the sediments into large and small sizes.SOLUTION: A rubble sorting system includes a separating water tank Ta having a water tank body 1 into which the rubble G including the floats Gf floatable on water W and the sediments Gs sedimenting in the water W is thrown and in which the thrown-in floats Gf and the sediments Ga are separated due to specific gravity difference. The system provides a screen 10 which receives the sedimented sediments Gs on the side of a bottom part 4 of the water tank body 1, passes the sediments Gs of a prescribed size or less and filters off and removes them. The system discharges the water W and the sediments Gs passing through the screen 10 through a discharge pipe 13 to a storage tank Tb, and takes out the sediments Gs sedimenting in the storage tank Tb with a screw conveyor 40 so as to collect them.

Description

  The present invention relates to a rubble separation system that separates debris generated by an earthquake disaster into a floating object that can float in water such as wood and a sedimented object that sinks in water such as concrete or metal.

  Conventionally, as this kind of rubble separation system, for example, one described in Patent Document 1 (Japanese Patent Laid-Open No. 9-75772) is known. This is because debris containing floating objects that can float in water and sedimented objects that settle in water is put into a water tank, and the floating objects and sedimented objects are separated by specific gravity in this water tank, and the sedimented objects that sink to the bottom of the water tank. Is pushed up to one side of the water tank by a screw conveyor and taken out, and the levitated object is separated from the debris by making it overflow with the make-up water over the upper edge of the water tank and taking it out to the other side.

JP-A-9-77772

  By the way, in this conventional rubble sorting system, the screw conveyor is put in the water tank so that the sedimented object is taken out of the water tank. In addition, there is a problem that even if thrown into the water tank, the screw conveyor is in the way and it is difficult to smoothly remove the floating object. Further, for example, since there are various sizes of concrete bodies, such as concrete lumps, there is a problem that if the size is large, it may be difficult to convey on a screw conveyor. For this reason, a process such as fine crushing is required to some extent before it is put into the water tank, and there is a disadvantage that the work is complicated accordingly.

  The present invention has been made in view of the above points, avoiding the situation of equipment damage due to debris, so as not to place the equipment for removal in the water tank into which rubble is thrown in, and taking out floating objects. It is an object of the present invention to provide a rubble sorting system that facilitates and allows the settled object to be separated into large and small parts and allows the settled object to be taken out easily and smoothly.

In order to achieve such an object, the debris separation system of the present invention is provided with a debris containing a floating object that can float on water and a sedimented object that sinks in water, and the specific gravity of the floated object and the sedimented object that are introduced. In a rubble separation system equipped with a separation tank having a tank body to be separated,
A screen is provided on the bottom side of the water tank main body for receiving a sinking sediment object and allowing the sediment object of a predetermined size or less to pass through and filter.
In addition, water is continuously supplied into the water tank main body or is in a state where water is accumulated. The water in the tank body is opened and discharged in a timely manner by providing a discharge channel.

  Here, rubble refers to debris generated by destruction of buildings such as houses and buildings, various facilities such as bridges and roads, natural objects, etc. due to, for example, an earthquake disaster, tile, stone, concrete, metal, wood, A mixture of all waste materials including chemical products such as textiles and plastics. The debris includes a floating object that can float in water and a sedimented object that sinks in water. There are various methods for treating rubble, but first, it is effective to separate into floating objects such as wood and light plastic and sedimentation objects such as stone, concrete and metal.

  The rubble targeted by the present invention depends on the size of the aquarium body, but is of a size that can be put together to some extent by a construction machine such as an excavator loader equipped with a bucket, and is a relatively light floating object In any case, it is desirable to remove in advance a heavy sedimentary object having a size exceeding 1 m.

Therefore, the maximum dimension D of the aperture of the screen is set to 25 mm ≦ D ≦ 200 mm. Preferably, 30 mm ≦ D ≦ 100 mm, and more preferably 40 mm ≦ D ≦ 60 mm. The aperture ratio A of the holes is 5% ≦ A ≦ 80%. Preferably, 8% ≦ A ≦ 30%, more preferably 10% ≦ A ≦ 15%.
There are various types of rubble, but in this range, heavy rubble such as metal can be collected on the screen. Further, when the aperture ratio is 30% or less, the strength of the screen is increased, and it is resistant to bending and impact due to heavy debris such as metal, and the durability is improved accordingly.
In this case, for example, the screen is formed of a metal plate having holes formed in a matrix, the diameter D of the holes is set to D = 60 mm ± 5 mm, and the aperture ratio A is A = 10% ± 2%. This is effective. Because it is plate-shaped, it has high strength and excellent durability.

  When such rubble is separated using the rubble sorting system according to the present invention, the rubble is thrown into the tank body of the separated water tank by a construction machine such as a shovel loader or grapple. When debris is thrown in, there is water in the tank body, so the floating object floats and the sinking object sinks. At this time, since equipment such as a conveyor is not provided in the main body of the water tank, there is no situation in which these equipment hits and damages the rubble. Further, the floating object overflows from the water tank body or is taken out again by a construction machine such as an excavator loader or a grapple in a floating state. In this case, since the water tank main body is not provided with equipment such as a conveyor, there is nothing in the way, so that the floating object can be easily taken out.

Furthermore, in the water tank body, the sinking object sinks to the bottom, but since the screen is provided on the bottom side, the sinking sinking object can be received, and the hole in the screen sinks below a predetermined size. The object passes through with water and is discharged.
As a result, a sedimented object having a size exceeding a predetermined size remains filtered on the screen. The remaining relatively large sedimented object is taken out by a construction machine such as an excavator loader or grapple at an appropriate time. For this reason, the sedimentation object can be separated in size, so that the separation efficiency is extremely good. Further, since there is no situation that the sedimented object is caught by the equipment in the water tank body, the sedimented object can be easily taken out. The sedimented object that has passed through the holes in the screen is appropriately collected or discharged.

  And as needed, it is set as the structure which comprised the said water tank main body, and made the whole or part of wall surface above the said screen into the inclined surface which the said sedimentation object can slide. As a result, it is easy for the sinking object to slide on the inclined surface and converge on the screen, so that the separation by the screen is surely performed.

In addition, if necessary, the water tank main body is configured to include four side walls forming a rectangular opening at the upper end, and the two opposite side walls are inclined to each other so that the lower ends thereof are connected to each other to connect the connecting portion. The screen is provided on the bottom side of the water tank body, and an accommodation space is provided between the screen and the bottom for accommodating water that has passed through the screen and a sedimented object.
As a result, the two opposite sidewalls are inclined with respect to each other, and the lower ends thereof are connected to form the bottom, so that the manufacturing can be facilitated with a simple structure. In addition, since the storage space is provided between the screen and the bottom portion, the sedimented object can be temporarily collected in the storage space, so that intermittent discharge can be handled. Moreover, since the amount of water can be secured even in continuous discharge, the discharge can be performed reliably. Furthermore, since the two opposing side walls are inclined, when the floating object is taken out from the opening edge of the side wall by a construction machine such as a shovel loader or grapple, the excavator is moved along the inclination to move the floating object. Although it is made to scrape, it becomes easy to scrape the floating object to the outside because it is inclined, and the floating object can be easily taken out.

  In this case, it is effective to have an extended portion formed by extending the upper end of the side wall forming the inclined surface above the opening of the water tank body. The extension part supports the levitated object outside the opening of the aquarium body when the excavator is moved along the slope of the side wall by a construction machine such as a shovel loader or a grapple so that the levitated object is scraped out. Therefore, the levitated object can be more easily scraped to the outside, and the levitated object can be easily taken out.

  Furthermore, if necessary, a shooter is provided at the upper end of the side wall other than the inclined side wall, which receives the debris to be introduced and guides it into the main body. Since debris can be input through a shooter from a different direction from a construction machine such as a shovel loader or grapple for removal, the debris can be easily input.

Furthermore, it is set as the structure which provided the discharge path which discharges the water which passed the said screen, and the sedimented object outside as needed. In this case, in the process, when the discharge path is closed, it is temporarily taken down to the lower side of the screen. And if a discharge channel is opened, water and a sedimentary body will be discharged | emitted outside with the water pressure in a water tank main body. In addition, the water pressure is easily related to the sinking object and is easily discharged. In addition, when water is continuously supplied into the water tank body, the water and the settled object are continuously discharged from the discharge path.
For example, the water discharged from the discharge channel and the sinking object are directly buried in excavation grooves dug in the ground, or stored in a separate storage tank. And the sedimented object is taken out and collected separately. In this case, since the accumulated sediments are smaller than a predetermined size and are sized, they can be used as, for example, concrete aggregate. Further, it is possible to remove a metal such as iron from here by using a magnet or the like.

  Furthermore, if necessary, a storage tank for storing the water discharged from the discharge channel and the sedimented object is provided, and the water stored in the storage tank is pumped up and fed into the water tank body to circulate the water. The circulation pump is provided. Since water can be recycled, labor saving is achieved. The shortage of water can be replenished separately.

  Moreover, it is set as the structure provided with the conveyor which discharges | emits the sedimentation object settled in the said storage tank outside as needed. Since the settled object can be taken out by the conveyor, water and the settled object can be secondarily separated and the settled object can be accumulated. Therefore, since the sedimentation object to be accumulated is smaller than a predetermined size and is sized, it can be used as, for example, concrete aggregate. Further, it is possible to remove a metal such as iron from here by using a magnet or the like.

  In addition, if necessary, a disinfectant is mixed with water. Since both the floating object and the sinking object are disinfected with the disinfectant, the state becomes extremely favorable in terms of hygiene.

  According to the present invention, when debris is thrown into the aquarium main body, since equipment such as a conveyor is not provided in the aquarium main body, it is possible to prevent a situation where the debris hits and damages these devices. . In addition, the floating object overflows from the aquarium body or can be taken out again by a construction machine such as an excavator loader or grapple in a floating state, but the aquarium body is not provided with equipment such as a conveyor. So there is nothing to get in the way, so the floating object can be easily taken out.

  Furthermore, because the sinking objects that have sunk in the tank body are filtered out by the screen, sinking objects with a size exceeding the predetermined size on the screen are timely exposed to the outside by construction machines such as excavator loaders and grapples. Since it can be taken out, and therefore, the settled object can be separated in size, the separation efficiency is extremely good. Moreover, since there is no situation where the sedimented object is caught by the equipment in the water tank body, the sedimented object can be easily taken out. On the other hand, the sedimented object that has passed through the screen is intermittently taken out and discharged, or continuously taken out and discharged. And, for example, it can be buried in a dug groove dug in the ground or recovered and used as a concrete aggregate.

It is a perspective view which shows the rubble classification system which concerns on embodiment of this invention. The structure of the separation water tank of the rubble separation system which concerns on embodiment of this invention is shown, (a) is front sectional drawing, (b) is a top view, (c) is a side half sectional view. It is a figure which shows the rubble classification system which concerns on another embodiment of this invention with the process sequence.

Hereinafter, a rubble sorting system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the rubble sorting system according to the embodiment of the present invention sorts rubble G. Here, the debris G refers to debris generated by destruction of buildings such as houses and buildings and various facilities such as bridges and roads due to, for example, an earthquake disaster, and includes tiles, stones, concrete, metal, wood, textiles A mixture of all waste materials including products, chemical products such as plastics. The debris G includes a floating body Gf that can float on the water W and a sedimented body Gs that sinks to the water W. The rubble G separation system according to the embodiment separates the floating object Gf and the subsidence object Gs.

  The basic configuration of the rubble G separation system according to the embodiment of the present invention is the separation water tank Ta having the water tank main body 1 into which the rubble G is charged and the floated object Gf and the settling object Gs are separated by gravity. The storage tank Tb stores the water W discharged from the separated water tank Ta and the sedimented body Gs.

  The separation water tank Ta is formed, for example, by welding a metal plate such as iron, and includes a water tank body 1 and a machine frame 2 that supports the water tank body 1. The machine frame 2 is formed in a rectangular parallelepiped cylindrical shape by four rectangular plates 2a, 2b, 2c, and 2d. The lower end of the machine casing 2 is grounded to the ground. The aquarium body 1 includes two plate members 2a, 2b in the longitudinal direction facing each other out of the four plate members 2a, 2b, 2c, 2d forming the machine frame 2, and is welded in the machine frame 2 to be prepared in addition. It is formed of two plate members 3a and 3b to be fixed. Specifically, the water tank main body 1 is configured to include four side walls that form a rectangular opening 3 at the upper end, and two of the side walls facing each other are composed of two other plate members 3a and 3b prepared in addition to the above. The lower ends are connected to each other by inclining each other, and this connecting portion is formed to be the bottom portion 4. The other two side walls are constituted by two plate members 2a and 2b in the longitudinal direction forming the machine casing 2. As a result, the plate material 3a, 3b that constitutes the water tank main body 1 and is the whole or a part of the wall surface above the screen 10 described later (a part in the embodiment) and constitutes the two side walls can slide the sedimented object Gs. It will be formed in a simple inclined surface. At the upper end of the side walls (plate members 3 a and 3 b) that form the inclined surface, an extending portion 5 that extends upward from the opening 3 of the water tank main body 1 is provided. In the water tank main body 1 of the separation water tank Ta, since the two opposite side walls (plate members 3a and 3b) are inclined to each other and their lower ends are connected to form the bottom part 4, the structure is simple. Manufacturing can be greatly facilitated.

On the bottom 4 side of the water tank main body 1, a screen 10 having a hole 11 for receiving a sinking sedimented object Gs and allowing the sedimented object Gs of a predetermined size or less to pass through and filtered is provided. The screen 10 uses an iron plate having a thickness of 6 to 12 mm (9 mm in the embodiment), and reinforcing members 10a made of angle members having an L-shaped cross section are arranged on the back surface at predetermined intervals, and both ends thereof are fixed by welding. It is reinforced. For example, the maximum dimension D of the opening of the hole 11 of the screen 10 is set to 25 mm ≦ D ≦ 200 mm. Preferably, 30 mm ≦ D ≦ 100 mm, and more preferably 40 mm ≦ D ≦ 60 mm. The aperture ratio A of the holes is 5% ≦ A ≦ 80%. Preferably, 8% ≦ A ≦ 30%, more preferably 10% ≦ A ≦ 15%.
There are various types of rubble, but in this range, heavy rubble such as metal can be collected on the screen 10. Further, when the aperture ratio is set to 30% or less, the strength of the screen 10 is increased, and it is resistant to bending and impact due to heavy rubble with metal, and the durability is improved accordingly.
In the embodiment, the screen 10 is formed of a metal plate having the holes 11 formed in a matrix, the diameter D of the holes 11 is set to D = 60 mm ± 5 mm, for example, D = 60 mm, and the aperture ratio A A = 10% ± 2%, for example, A = 11.5%. Because it is plate-shaped, it has high strength and excellent durability.

  In the water tank body 1, a storage space 12 for storing the water W that has passed through the screen 10 and the sedimented object Gs is provided between the screen 10 and the bottom 4. Further, the side wall (the plate material 2b) of the two plate members (2a, 2b) in the longitudinal direction forming the machine frame 2 in the embodiment has a storage space that has passed through the screen 10 in the side wall (plate material 2b). A discharge pipe 13 as a discharge path for discharging the water W from 12 and the sedimented object Gs to the outside is provided.

  Moreover, it is an opening of the water tank main body 1 and is a side wall other than the inclined side wall (in the embodiment, two plates 2a and 2b in the longitudinal direction forming the machine frame 2), and a discharge pipe 13 is provided. At the upper end of the other side wall (plate material 2a) different from the side wall (plate material 2b), a shooter 15 that receives the debris G to be introduced and guides it into the water tank body 1 is provided so as to protrude outward. The shooter 15 is composed of a slide plate 15a and a pair of side plates 15b that are formed on the left and right sides of the slide plate 15a.

  The storage tank Tb stores the water W discharged from the water tank body 1 of the separated water tank Ta and the sedimented body Gs, and the discharge pipe 13 protruding from the water tank body 1 is positioned above the opening 21 of the storage tank Tb. Thus, it is provided below the lower end of the machine casing 2 of the separated water tank Ta. In the embodiment, the ground adjacent to the ground on which the machine casing 2 of the separated water tank Ta is grounded is excavated to form the excavation groove 20, and the storage tank Tb is provided in the excavation structure 20. The storage tank Tb is formed in a rectangular box shape with a metal plate material such as iron.

In addition, a circulation pump 30 is provided that pumps up the water W stored in the storage tank Tb and feeds it into the water tank body 1 to circulate the water W. A filter 32 is provided at the suction port of the suction pipe 31 that reaches the circulation pump and is connected to the pump 30. Reference numeral 33 denotes a feed pipe that feeds the water W from the pump 30 into the water tank body 1. Furthermore, when the water W in the water tank main body 1 is insufficient, a water supply pipe (not shown) for replenishing the water W is separately provided.
Furthermore, the screw conveyor 40 which discharges | emits the sedimented object Gs which settled in the storage tank Tb outside is provided. The screw conveyor 40 is installed obliquely with respect to the bottom 4 of the storage tank Tb, and the sedimented object Gs that has sunk into the bottom 4 of the storage tank Tb due to rotation is discharged and accumulated outside the storage tank Tb.
In this system, the disinfectant S is mixed with the water W. As the disinfectant S, for example, slaked lime is used. The disinfectant S is not limited to this. Since both the floating object Gf and the sinking object Gs are sterilized with the disinfectant S, the state becomes extremely favorable in terms of hygiene.

Therefore, when the rubble G is separated by the rubble sorting system according to this embodiment, the following is performed. At this time, the water tank body 1 is filled with water W, and the circulation pump 30 is driven to circulate the water W.
The debris G is thrown into the water tank main body 1 through the shooter 15 of the separated water tank Ta by a construction machine such as a shovel loader or a grapple. Since the rubble G can be thrown in via the shuta 15, the rubble G can be put in easily. When the debris G is thrown in, the water tank body 1 has water W, so that the floating object Gf floats and the sinking object Gs sinks. At this time, since the water tank main body 1 is not provided with devices such as a screw conveyor, there is no situation in which the debris G hits and damages these devices. In addition, since part of the wall surface (plate members 3a and 3b) above the screen 10 is an inclined surface, the sedimented object Gs can easily converge on the screen 10 by sliding on the inclined surface.

  The floating object Gf overflows from the water tank main body 1 or is taken out again by a construction machine such as an excavator loader or grapple in a floating state. In this case, since the water tank main body 1 is not provided with devices such as the conveyor 40, there is nothing in the way, so that the floating object Gf can be easily taken out. Further, since the two opposite side wall plate members (3a, 3b) are inclined, when the floating object Gf is taken out from the opening 3 edge of the side wall by a construction machine such as a shovel loader or grapple, the shovel is moved along the inclination. The levitated object Gf is scraped out by moving the like, but since it is inclined, the levitated object Gf is easily scraped to the outside, and the levitated object Gf can be easily taken out. Further, there is an extending portion 5 with an inclined surface extending, and this extending portion 5 moves the floating object Gf by moving the shovel or the like along the inclination of the side wall by a construction machine such as a shovel loader or grapple. Since the levitated object Gf can be supported outside the opening 3 of the water tank main body 1 when scraping out the levitated object Gf, the levitated object Gf can be more easily scraped to the outside, and the levitated object Gf can be easily taken out. Can be.

  On the other hand, in the water tank body 1, the sedimented object Gs settles on the bottom 4, but since the screen 10 is provided on the bottom 4 side, the sedimented sediment Gs is received and the hole 11 of the screen 10 is received. The sedimented object Gs having a predetermined size or less passes along with the water W and is discharged. In this case, since part of the wall surface above the screen 10 (plate materials 3a and 3b) is an inclined surface, the sedimented object Gs slides on the inclined surface and is easily converged on the screen 10. Is surely filtered. Further, the water pressure is easily related to the sedimented object Gs, and the discharge is easily performed. Then, the water W and the sedimented body Gs that have passed through the screen 10 are continuously transferred to the storage tank Tb through the discharge pipe 13. In this case, since the accommodation space 12 is provided between the screen 10 and the bottom portion 4, the amount of water can be secured, so that the discharge can be performed reliably.

  As a result, the settling object Gs having a size exceeding a predetermined size is left after being filtered on the screen 10. The remaining relatively large sedimented object Gs is taken out by a construction machine such as an excavator loader or a grapple at an appropriate time. For this reason, the sedimentation object Gs can be separated in size, so that the separation efficiency is extremely good. Further, since there is no situation that the sedimented object Gs is caught by the equipment in the water tank body 1, the sedimented object Gs can be easily taken out.

  Further, in the storage tank Tb, the water W and the sedimented object Gs discharged from the discharge pipe 13 are settled and collected in the bottom part 4, but when the screw conveyor 40 is driven, the sedimented object Gs that has settled in the storage tank Tb. Can be discharged to the outside. Since the sedimentation object Gs can be taken out by the screw conveyor 40, the water W and the sedimentation object Gs can be secondarily separated and the sedimentation object Gs can be accumulated. Therefore, since the sedimented object Gs to be accumulated is a predetermined size or less and is sized, it can be used as, for example, concrete aggregate. Further, it is possible to remove a metal such as iron from here by using a magnet or the like. Since the water W stored in the storage tank Tb is pumped up by the circulation pump 30 and fed again into the water tank main body 1, the water W can be circulated and used, thereby saving labor. The insufficient water W may be replenished separately.

  FIG. 3 shows a rubble sorting system according to another embodiment. Unlike the above, this is composed of only the separated water tank Ta having the water tank main body 1 in which the debris G is introduced and the floated object Gf and the settling object Gs are separated by specific gravity. The discharge pipe 13 is not provided as a discharge path for discharging the water W and the sedimented object Gs from the storage space 12 that has passed through the screen 10 to the outside. Further, the separation water tank Ta is directly provided at a place where the ground is excavated, and is formed by welding a metal plate such as concrete or iron, for example. Others are the same as above.

  Therefore, when the rubble G is separated by the rubble sorting system according to this another embodiment, the following is performed. First, the water tank body 1 is filled with the water W mixed with the disinfectant S, and the debris G is put into the water tank body 1 by a construction machine such as an excavator loader or a grapple (FIG. 3A). When the debris G is thrown in, the water main body 1 has water W, so that the floating object Gf floats and the sinking object Gs sinks (FIG. 3B). The actions and effects at this time are the same as described above. The levitated object Gf is taken out again by a construction machine such as an excavator loader or a grapple in the levitated state (FIG. 3C). The extracted floating object Gf can be further separated by, for example, hanging it on a sieve.

  On the other hand, in the water tank body 1, the sedimented object Gs settles on the bottom 4, but since the screen 10 is provided on the bottom 4 side, the sedimented sediment Gs is received and the hole 11 of the screen 10 is received. The sedimented object Gs having a predetermined size or less passes, and the sedimented object Gs having a size exceeding the predetermined size is filtered and remains on the screen 10 (FIG. 3D). The remaining relatively large sedimented object Gs is taken out by a construction machine such as a shovel loader or a grapple at an appropriate time (FIG. 3E).

  Further, the sedimented object Gs having a predetermined size or less that has passed through the hole 11 of the screen 10 accumulates at the bottom of the water tank body 1. The sedimented object Gs collected on the bottom is taken out at an appropriate time by removing the screen 10 and taking it out by a vacuum device or the like (FIG. 3F). Since the settled object Gs is not larger than a predetermined size and is sized, it can be used as, for example, concrete aggregate. Also with this system, the rubble G can be separated smoothly.

  In the above-described embodiment, the water W is continuously supplied by the circulation pump 30. However, the present invention is not necessarily limited to this. Is closed and water W is accumulated, and debris G is introduced. After a certain amount of introduction, the open / close valve is opened, the discharge pipe 13 is opened, and the water W and the sedimented object Gs passing through the screen 10 are stored. It may be transferred to the tank Tb and discharged intermittently. In this case, since the storage space 12 is provided between the screen 10 and the bottom portion 4, the sedimented object Gs can be temporarily collected in the storage space 12, so that intermittent discharge can be handled.

Moreover, in the said embodiment, although the storage tank Tb was provided in the excavation structure 20, it is not necessarily limited to this, The excavation groove 20 may be comprised as the storage tank Tb, and it may change suitably. Absent. Further, for example, the sedimented object Gs may be buried in the excavation groove 20 without providing the storage tank Tb. In this case, the water W may be discharged from the excavation groove 20. The screw conveyor 40 becomes unnecessary.
Moreover, the water tank main body 1 is not limited to what is formed by welding metal plates, such as iron, For example, you may change suitably, such as forming with concrete.

  In the “Great East Japan Earthquake” on March 11, 2011, the largest M9.0 earthquake in the history of domestic observations occurred off Sanriku, accompanied by a huge tsunami. In a wide area along the coast of the nearby Tohoku region, many urban areas such as cities and fishing villages were destroyed and many people were sacrificed. In addition, buildings, such as houses and buildings, various facilities such as bridges and roads, and natural objects are destroyed extensively, and chemical products such as tiles, stones, concrete, metal, wood, textiles, plastics, etc. A very large amount of rubble G was produced. Therefore, in the reconstruction, this debris G treatment is indispensable. However, the debris G separation system of the present invention is simple in structure and easy to install. It seems to function extremely usefully.

Ta separation water tank Tb storage tank G debris Gf floating object Gs sedimentation object W water S disinfectant 1 water tank body 2 machine frame 2a, 2b plate material (side wall)
2c, 2d plate material 3 opening 3a, 3b plate material (side wall)
4 Bottom 5 Extension 10 Screen 10a Reinforcing Material 11 Hole 12 Accommodating Space 13 Discharge Pipe 15 Shuta 20 Excavation Groove 30 Circulation Pump 31 Suction Pipe 32 Filter 33 Feeding Pipe 40 Screw Conveyor

Claims (9)

In a rubble separation system comprising a separation tank having a water tank body in which debris including a floating object that can float on water and a sedimented object that sinks in water is charged and the floated object and the sedimented object that are charged are separated by specific gravity,
A debris separation system, characterized in that a screen is provided on the bottom side of the aquarium body for receiving a sinking sinking object and filtering the sinking object having a predetermined size or less.   2. The rubble sorting system according to claim 1, wherein all or part of the wall surface constituting the water tank main body and above the screen is an inclined surface on which the sinking object can slide.   The water tank body is configured with four side walls forming a rectangular opening at the upper end, and two opposite side walls are inclined with respect to each other so that the lower ends are connected to each other so that the connecting portion becomes the bottom. The said water tank main body is formed, the said screen is provided in the bottom part side, The accommodation space which accommodates the water which passed through this screen, and the sediment object was provided between this screen and the bottom part of Claim 2 characterized by the above-mentioned. Debris separation system.   The rubble sorting system according to claim 3, further comprising an extending portion formed by extending an upper end of a side wall forming the inclined surface above an opening of the water tank body.   The rubble according to claim 3 or 4, wherein a shooter is provided at the upper end of the side wall other than the inclined side wall, and is provided with a shooter for receiving the rubble to be introduced and guiding it into the main body. Sorting system.   The rubble sorting system according to any one of claims 1 to 5, further comprising a discharge passage that discharges water and a sedimented object that have passed through the screen to the outside.   Provided a storage tank for storing the water discharged from the discharge channel and the sedimented object, and provided a circulation pump for pumping up the water stored in the storage tank and feeding it into the water tank body to circulate the water. The rubble sorting system according to claim 6.   The rubble sorting system according to claim 7, further comprising a conveyor that discharges a sinking object sinking into the storage tank to the outside.   The rubble sorting system according to any one of claims 1 to 8, wherein a disinfectant is mixed with water.

Images