JP2008036550A - Sorting method of artificial grass filler, sorting apparatus, and sorting and collecting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the sorting method of artificial grass filler, a sorting apparatus, and a sorting and collecting apparatus for efficiently separating and sorting artificial grass filler into its components, silica sand and elastic aggregate, and sorting and collecting these. <P>SOLUTION: The filler consisting of silica sand and elastic aggregate collected from artificial grass is supplied to a tilted vibration screen 30 dipped in a water tank 20 from its upper end, and silica sand is precipitated on the water tank bottom as undersize. The elastic aggregate is made to flow down together with washing water and introduced to the precipitation tank 61 of an elastic aggregate collection device 60. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a separation method, a separation and recovery method, a separation device and a separation and recovery device for a filler (also referred to as filling sand) filled in a pile space of an artificial turf, and in particular, the filler is an elastic bone such as silica sand and rubber. The present invention relates to an artificial turf filler separation method, a separation collection method, a separation device, and a separation collection device that can separate and collect silica sand and elastic aggregate in the case of a mixture of materials.

  Artificial turf is widely used as a surface layer material for facilities such as athletic fields, and among them, the one that is filled with quartz sand or river sand in the gap between leaf stems called pile has been used as an all-weather pavement material that feels close to natural turf. It was. In recent years, improvements have been made to this filler, and in addition to quartz sand and river sand, a mixture of elastic aggregates (also called rubber chips) such as artificial rubber particles has been used, and it has been used by those who use sports facilities. The burden on the company has been further reduced.

  As shown in FIG. 10, this type of artificial turf is constructed by placing an artificial turf mat in which a leaf stem having a length of more than 30 mm is planted on a foundation made of a weather-resistant polypropylene plain woven fabric on a foundation such as concrete, It is constructed by a so-called laying method in which the gap between the stems is filled with a mixture of silica sand and elastic aggregate to a thickness of about 20 to 40 mm. The artificial turf constructed in this way has a service life of a considerable long time, for example, about 7 to 10 years.

  Artificial turf constructed in this way has a service life of about 7 to 10 years for a considerably long period of time, but when the above-mentioned service life has passed and the leaf stem has been shredded and so on, re-installation work is performed. Artificial turf mats including base fabric and leaf stems generated during this re-covering work can be used as waste plastic, for example as fuel, if the filler is separated, and such attempts have actually been made. Yes.

  An elastic aggregate such as rubber can be reused as the filler. On the other hand, silica sand is difficult to be reused as a filler when its particle size has been reduced by many years of use, but it can be used as a building material, for example, a concrete aggregate, a backfill material at a construction site, or the like. However, since the filler is a mixture of silica sand and elastic aggregate such as rubber, and the separation of them is not easy, the recycle according to the above form has not progressed.

This silica sand filler are different in specific gravity (specific gravity: about 2 to 2.5, particle size: 0.1 to 1.2 mm approximately) with elastic filler (specific gravity: 1.1 to 1.3 mm, particle size: 0.5 to 5 mm extent) a mixture of In addition, there is a problem that separation (separation) of the two is difficult with known separation means such as wind selection, and when the artificial grass is replaced, these fillers contain a lot of moisture when washed from the stems by washing with water. Further, there is a problem that silica sand is attached to the elastic aggregate, and for example, the both cannot be easily separated and separated by sieving.

  Regarding the recovery of the artificial turf filler, for example, Patent Document 1 describes that the recovered artificial turf is immersed in a water tank with respect to the recovery of the artificial turf filler. On the other hand, regarding the method for separating and collecting mixtures having different specific gravities, Patent Document 2 discloses, as a plastic bottle regeneration treatment method, a bottle piece and a paper label piece are allowed to settle in water due to a difference in specific gravity, and a polyethylene label piece and a polypropylene label piece are separated. A sorting means is described in which a paper label is dissolved in water out of a bottle piece and a paper label that are floated on the water surface and taken out of the water, and only the bottle piece is taken out.

JP 2002-192120 A Japanese Patent Laid-Open No. 2001-300938

  However, Patent Document 1 only describes the collection of the artificial turf filler, and does not describe a method for separating and separating the collected filler. In addition, Patent Document 2 describes the separation of a mixture based on the difference in specific gravity and the separation of the mixture using the difference in chemical properties. However, both methods for physically separating and separating a mixture having a specific gravity greater than that of water are disclosed. There is no description. Therefore, realization of a means for separating and collecting artificial turf filler, in particular, mixed filler made of silica sand-elastic aggregate is desired.

  The present invention efficiently separates and separates the artificial turf filler, which has been difficult to separate and recover by the above-mentioned conventionally known means, into its constituent silica sand and elastic aggregate. It is an object of the present invention to provide an artificial turf filler separation method, a separation device, and a separation / collection device that can be collected separately.

  In the present invention, when the filler recovered from the artificial turf is supplied onto a sieve submerged in a water tank and appropriate vibration is applied to the sieve, silica sand having a large specific gravity falls under the sieve, while the specific gravity is water. It was found that an elastic aggregate such as a rubber chip or the like can flow in water and be discharged out of the water tank together with washing water, and by using this phenomenon, the present invention was completed.

  In the method for separating artificial turf filler of the present invention, the filler consisting of silica sand and elastic aggregate collected from artificial turf is supplied from the upper end of an inclined / vibrating sieve immersed in a water tank, and the silica sand content is supplied to the inclined sieve. While being allowed to settle to the bottom of the water tank as a sieving part, the elastic aggregate part is caused to flow down together with the washing water and guided into the elastic aggregate recovery tank to be settled.

  In the above-described method for separating artificial turf filler, it is preferable that the coarse silica sand remaining on the inclined / vibrating sieve is guided to the bottom of the water tank from the dropping port provided on the inclined / vibrating sieve.

  The method for separating and recovering silica sand and elastic aggregate from the artificial turf filler according to the present invention includes a step of washing the collected artificial turf with washing water and collecting the artificial turf filler together with the washing water; According to a series of steps consisting of a step of separating the artificial turf filler into silica sand and elastic aggregate by a separation method, and a step of dewatering the silica sand and elastic aggregate separated by the step and recovering the silica sand and elastic aggregate. It is configured.

  In carrying out the method for separating the artificial turf filler, the filler supply part for supplying the artificial turf filler together with the cleaning water is discharged at the upper part, the silica sand storage part at the lower end, and the elastic aggregate together with the cleaning water at one side. A water tank main body having an elastic aggregate discharge port to be discharged, and an elastic aggregate settling tank for receiving the elastic aggregate connected to the main body and discharged from the elastic aggregate discharge port together with the washing water and sinking the elastic aggregate to the bottom The water tank and the opposite of the water tank so that the lower end is positioned so as to face the sedimentation tank beyond the elastic aggregate outlet, and the upper end is located above the upper edge of the elastic aggregate outlet. An artificial turf filling material separation device having an inclined / vibrating sieve that is inclined and extended between the two surfaces and is submerged in the water tank main body except for the upper end portion can be used. Near the upper end of the inclined / vibrating sieve with artificial turf filler Silica sand content of synthetic grass filler can be used artificial grass filler fractionator to precipitate the silica sand reservoir of the tank body by al supply.

  In the above apparatus, it is preferable that the inclined / vibrating sieve has a mesh sufficient to pass the silica sand component without passing the elastic aggregate component in the component of the artificial turf filler.

  Further, the inclined / vibrating sieve is preferably provided with a coarse silica sand falling part at the end thereof, and the inclined / vibrating sieve is elasticated at least on the upper surface over a range extending below the water surface. It should be covered with an aggregate escape prevention net.

  The artificial turf filler separating device can be used by attaching a silica sand collecting device and an elastic aggregate draining and collecting device to the artificial turf filler separating device described above. A slanted screw conveyor that extends obliquely upward from the lower end of the silica sand storage part of the material sorting device and whose upper end is located above the water level of the aquarium, and a silica sand discharge part installed at the upper end of the screw conveyor; None, it is preferable that the elastic aggregate draining and collecting device includes an elastic aggregate draining unit and a washing water filtration and regeneration unit discharged from the elastic aggregate draining unit. Furthermore, a recovery artificial turf cleaning tank is provided in front of the artificial turf filling material separation and recovery device, and a cleaning water return pipe from the cleaning water filtration and regeneration unit of the recovered elastic draining recovery device to the artificial turf filling material cleaning tank may be provided. You can do it.

  According to the present invention, the artificial turf filler can be efficiently separated by separating it into silica sand and elastic aggregates, which can be separated and recovered. In particular, since the silica sand and elastic aggregate recovered by the present invention are separated in water, there is a feature that there is almost no mutual adhesion and high purity. Thereby, recycling of elastic aggregates such as rubber chips, recycling of recovered silica sand, and utilization to concrete aggregates and the like become possible. Moreover, reuse (recycling) of washing water can be achieved, and contamination of the surrounding environment can be extremely reduced.

  FIG. 1 is an overall configuration diagram of an artificial turf filler sorting and collecting apparatus according to the present invention. As shown here, the artificial turf filler separation and recovery apparatus according to the present invention is roughly constituted by an artificial turf cleaning tank 10, an artificial turf filler separation apparatus 20, and an elastic aggregate draining and recovery apparatus 70. As will be described in detail later, the artificial turf filler separation / recovery device 20 includes a silica sand-elastic aggregate separation unit 28 including a water tank body 23, a silica sand recovery device 50, and an elastic aggregate settling device 60.

  As shown in FIG. 1, the artificial turf cleaning tank 10 is configured by loading a rinsing tank 12 on a gantry 11. As shown in FIG. 2, the washing tank 12 has a hopper shape, and artificial turf 18 (collected) cut from the opening at the top is introduced, and a washing water supply pipe 16 and a washing water reflux pipe 17 are provided. Thus, the cleaning water is supplied from above, and the filler F can be dropped into the cleaning water using, for example, the agitating device 19. In addition, the bottom part is a collected filler storage part 13, where the filler F dropped out is deposited. The recovered filler storage unit 13 is provided with a sand pump 14 so that the filler F accumulated by the filler supply pipe 15 can be supplied to the artificial turf filler separation device 20 together with the cleaning water. Yes.

  Artificial turf filling material separation device 20 is also configured by loading water tank 22 (water tank body 23 and elastic aggregate sedimentation tank 61 of elastic aggregate sedimentation device 60 (including simply “sedimentation tank 61”) on frame 21. 3 and 4, an inclined / vibrating sieve 30 is mounted in the water tank body 23 so that most of it is submerged in the washing water, and the water tank body 23 has a filler feed pipe at the top. 15 is provided with a filler supply unit 24 for supplying artificial turf filler F together with cleaning water, and a lower part is a silica sand storage unit 25. One side of the elastic bone discharges elastic aggregate together with cleaning water. The material discharge port 26 is opened, and the elastic aggregate discharge port 26 is a connection port to the settling tank 61 of the elastic aggregate settling device 60.

  As shown in FIGS. 4 and 5, the elastic aggregate settling device 60 includes a bottomed settling tank 61 with a small depth suspended from the discharge port 26 and an elastic aggregate feeding sand pump 63 installed at the bottom. The elastic aggregate separated from the elastic aggregate settling part 62 by the elastic aggregate recovery pipe 65 is discharged through the duct 64 located at the upper part together with the washing water to the draining tank 71 of the elastic aggregate draining recovery device 70. It can be sent now. Therefore, when the water tank body 23 is filled with the cleaning water, the cleaning water flows into the settling tank 61 of the elastic aggregate settling device 60, and from the settling tank 61 to the elastic aggregate draining tank 71 according to the operation of the sand pump 63. The water stream will be formed.

  The shape and attachment method of the sedimentation tank 61 that forms the main part of the elastic aggregate sedimentation device 60 are not particularly limited as long as the above object can be achieved. For example, the shape may be a thin rectangle whose width is substantially the same as the aquarium body. In addition, a short connecting conduit (water channel) is drawn from the elastic aggregate discharge port 26 of the water tank body 23 to secure the water flow from the water tank body 23 to the elastic aggregate settling device 60 (sedimentation tank 61). You can also. However, as shown in FIGS. 4 and 5, the mounting width of the elastic aggregate outlet 26, which is the opening of the water tank body 23, is lowered downward with the same width as that of the inclined / vibrating sieve 30. None, and narrowing down from one of the side surfaces in the width direction, an elastic aggregate settling portion 62 is formed at the lowermost portion, and the sand pump 63 can be disposed here. As a result, the elastic aggregate can be collected in the elastic aggregate settling portion 62 at a very narrow place at the bottom of the settling tank 61, and the elastic aggregate can be reliably discharged by the sand pump 63. In this example, the duct 64 is attached to the upper part of the settling tank 61, and the elastic aggregate recovery pipe 65 is pulled out from here, but this is not limited, for example, the elastic aggregate recovery pipe 65 May be drawn from the water tank body 23 directly from the side.

  As shown in FIGS. 3 and 4, the inclined / vibrating sieve 30 has a lower end portion that slightly enters the sedimentation tank 61 from the elastic aggregate outlet 26 and faces the inside thereof, and an upper end portion that is elastic. It is attached so as to be inclined and extended between two opposing surfaces of the water tank body 23 so as to be located above the upper edge of the aggregate discharge port 26. The inclination angle is set to such an extent that the filler can drop and move together with the water flow at an appropriate speed on the sieve body 42 described later. Specifically, the angle is preferably about 10 to 40 °.

  The inclined / vibrating sieve 30 includes a sieve body 42, a spring 32 that supports the sieve body 42, a pedestal 31, and a vibration motor 37 that applies desired vibration to the sieve body 42.

  As shown in FIG. 7 (C-C cross section in FIG. 4), the sieve main body 42 has a mesh that has a sieve mesh that does not allow the elastic aggregate of the artificial turf filler to pass through and allows the silica sand to pass through. In this example, an elastic aggregate escape prevention net 39 is attached so as to cover the upper surface thereof. The gantry 31 is fixedly mounted between two opposing surfaces of the water tank body 23 so that a predetermined mounting angle and mounting position can be given to the inclined / vibrating sieve. An inclined / vibrating sieve is installed on the gantry 31 via a spring 32. Specifically, as shown in FIG. 7, a stay 38 is attached to a frame 34 of a screen body 42 of an inclined / vibrating sieve, a spring 32 is attached via the stay 38, and this spring 32 is attached to a gantry 31. it can. Alternatively, it may be attached directly to the frame 34 via the spring 32.

  As shown in FIG. 3, the vibration motor 37 spans the frame 34 of the elastic aggregate escape prevention net 39 covering the upper surface of the sieve body 42 (which is constructed integrally with the frame 34 of the sieve body 42). It is mounted on the support base 36 with a predetermined inclination angle. That is, as shown in FIG. 8, the support base 36 is given a predetermined angle, and the vibration motor 37 is attached thereto. Thereby, among the vibration force generated by driving the vibration motor 37, the elastic aggregate can be moved on the wire mesh portion 33 of the sieve body 42 by the component (x) parallel to the inclined / vibrating sieve 30 (the sieve body 42). In addition, the component (y) perpendicular to the inclined / vibrating sieve 30 applies vertical vibrations to the washing water flowing on the sieve body 42 so that the elastic aggregate floats in it and the silica sand falls below the sieve. ing.

  As shown in FIG. 3, the distal end portion of the sieve main body 42 is a tongue-like portion 35 made of a metal plate with the frame 34 being squeezed. In this example, as shown in the EE cross section of FIG. 6, a lip-shaped elastic aggregate outlet 26 having a narrow opening 41 integrated with the frame 34 of the elastic aggregate escape prevention net 39 is formed. This portion slightly protrudes into the settling tank 61 as shown in FIG. In this example, the frame 34 is squeezed in the width direction, but when the stagnation of the water flow at the squeezing part and the obstruction of the flow of the filler due to the stagnation are recognized or there is a possibility, the squeezing part is not provided. It is better to do so.

  As described above, the water tank main body 23, the elastic aggregate settling device 60, and the inclined / vibrating sieve 30 are configured, and cleaning water is supplied to the water tank main body 23 from the cleaning water supply pipe 16, and the sieve main body 42 of the inclined / vibrating sieve 30 is provided. The water level 27 is adjusted so that the water is submerged leaving the upper part, and then the filler F is supplied from the upper end of the inclined / vibrating sieve 30 together with the washing water while driving the sand pump 63 of the elastic aggregate settling device 60. Then, since the specific gravity of the silica sand in the filler is larger than that of the washing water, it falls under the sieve body 42 of the inclined / vibrating sieve 30 and falls in the water tank body 23 and accumulates in the silica sand storage part 24. . On the other hand, since the specific gravity of the elastic aggregate is not much different from that of the washing water, the elastic aggregate flows along the flow of the washing water on the sieve main body 42 of the inclined / vibrating sieve 30 and passes through the tongue 35 to the elastic aggregate discharge port. It flows into the sedimentation tank 61 of the elastic aggregate sedimentation device 60 from 26 and accumulates in the elastic aggregate sedimentation part 62 at the bottom.

  In this way, by using the artificial turf filler separation device 20 described above, the artificial turf filler F can be separated into silica sand and elastic aggregates. Aggregates can be collected from the elastic aggregate settling device 60, respectively.

  For the recovery of the silica sand, it is efficient to use the silica sand recovery device 50 (screw conveyor) shown in FIG. The silica sand collecting device 50 of this example extends a sealed cylinder 52 obliquely upward from the bottom of the water tank main body 23 of the artificial turf filler separating device 20, that is, the lower end of the silica sand reservoir 25, and a screw 51 is provided therein. The quartz sand discharge part 53 is provided at the upper end. In this case, the upper end of the silica sand collecting device 50 (screw conveyor) is positioned above the water level 27 of the water tank body 23 and above it. Therefore, the water filled in the water tank body 23 fills the sealed cylinder 52 of the silica sand recovery device 50 (screw conveyor) up to the water level 27 of the water tank body 23, but the silica sand discharge part 53 is located above the water level 27. Therefore, when the screw 51 is driven by a driving source such as a motor (not shown), the silica sand is carried from the silica sand reservoir 24 to the silica sand discharge part 53 on the water surface, and the washing water is almost cut off, so-called wet drying. In this state, for example, it can be collected in a bucket (not shown).

  In collecting the elastic aggregate, it is preferable to use an elastic aggregate draining and collecting device 70 shown in FIG. In this example, the elastic aggregate separated by the artificial turf filler separating device 20 from the sedimentation tank 61 of the elastic aggregate settling device 60 by the sand pump 63 for feeding elastic aggregate is washed through the elastic aggregate recovery pipe 65 and washed water. At the same time, it is fed to the draining tank 71 of the elastic aggregate draining and collecting device 70. The elastic aggregate draining tank 70 is composed of the draining tank 71 and the washing water regeneration and recovery tank 72. The draining tank 71 is a cylindrical body having an opening 73 in the lower part, and a gabion 74 is fitted in the upper part thereof so as to be freely attached and detached. On the other hand, the washing water regeneration / recovery tank 72 has an inlet 75 for the washing water discharged from the elastic aggregate draining tank 71 at the bottom, and has a cylindrical body filled with a filter 76 at the bottom.

  Therefore, when the elastic aggregate is sent from the elastic aggregate settling part 62 of the settling tank 61 to the draining tank 71 together with the washing water through the elastic aggregate recovery pipe 63 by the sand pump 63, the elastic aggregate is put into the gabion 74. Water that has been drained, recovered in a so-called wet and dry state, and the wash water that flows out of it is collected in a wash water regeneration and recovery tank 72 through a filter 76 and pumped up by a pump 77 installed there to return to the wash water It returns to the artificial turf washing tank 10 through the pipe 17 and is reused as washing water. Thus, in the present invention, the washing water used for washing the artificial turf returns to the artificial turf washing tank 10 again through the filler separating device 20, the settling tank 61 of the elastic aggregate collecting device 60, and the draining tank 70. It does not pollute the surrounding environment. Also, the only water taken out of the system is the collected silica sand and elastic aggregate adhering water, and this water is almost the same amount as the water adhering to the collected artificial turf. The amount of water is substantially zero or less.

  As described above, when supplying the cleaning water-artificial turf filler from the upper end side of the inclined / vibrating sieve 30 immersed in the cleaning water, the artificial turf filler F is washed with the cleaning water, The silica sand and the elastic aggregate are completely separated, and the elastic aggregate and the silica sand can be recovered with high purity and almost drained. In the present invention, since the inclined / vibrating sieve 30 is immersed in the washing water, the frictional resistance when the silica sand component passes through the sieve mesh is reduced, and therefore the replacement period of the inclined / vibrating sieve is sufficiently long. can do.

  The above effect can be achieved by the washing water containing the filler passing through the inclined / vibrating sieve 30, but the width of the inclined / vibrating sieve 30 is perpendicular to the water flow direction of the water tank 22, as shown in FIG. When the wash water flows down in the water tank body 23, a part of the wash water comes off the side of the sieve body 42 and floats in the wash water flow. -The retained elastic aggregate component flows into the silica sand reservoir 24 side together with the washing water, and the separation and recovery of the silica sand component and the elastic aggregate component is hindered.

  Therefore, in the above-described embodiment, the upper surface of the inclined / vibrating sieve 30 is covered with the elastic aggregate escape prevention net over at least the range extending below the water surface. By doing so, the washing water containing the filler passes through the tunnel having an opening that does not allow the elastic aggregate component to pass through, and the silica sand component is guided to the quartz sand reservoir 24 and stored therein. Thus, the elastic aggregate can be reliably transferred from the elastic aggregate discharge port 26 to the settling tank 61 of the elastic aggregate settling device 60.

  Instead of the tunnel, a wall of a mesh shape or a metal plate shape may be erected from the side of the sieve main body 42 so that its height does not immerse in water. As a result, it is possible to prevent the cleaning water from escaping outward from the inclined screen.

  Although the typical example of the present invention has been described above, the filler recovered by the artificial turf cleaning tank 10 may contain a silica sand having the same particle size as that of the elastic aggregate. In such a case, it is conceivable to employ an inclined sieve having a large mesh size that matches the coarse silica sand. However, when such a configuration is adopted, a part of the elastic aggregate, in particular, a large-diameter aggregate may move under the sieve together with the silica sand, and the elastic aggregate may be mixed into the recovered silica sand.

  In order to solve such a problem, as shown in FIG. 9, it is preferable to provide a coarse-grained silica sand separation portion 40 at the end of the inclined / vibrating sieve 30. That is, a part of the tongue-like portion 35 provided at the end of the sieve main body 42 of the inclined / vibrating sieve 30 is cut off on the side of the water tank main body 23 immediately before the connecting portion to the settling tank 61 of the elastic aggregate settling device 60 to open the opening 43. It is. By doing so, the coarse silica sand remaining on the sieve main body 42 and carried to the end of the inclined / vibrating sieve falls through the opening 43 and settles in the silica sand reservoir 24. . On the other hand, since the specific gravity of the elastic aggregate is small, the elastic aggregate is carried to the elastic aggregate settling device 60 side by the water flow of the washing water without falling from the opening 43.

  Using the artificial turf filler separating and collecting apparatus having the configuration shown in FIGS. 1 to 9 (excluding FIG. 6), an operation was performed to recover silica sand and elastic aggregate from the collected artificial turf that has passed six years after construction. Table 1 shows the specifications of the artificial turf filling material separation and recovery device. In this embodiment, as shown in FIG. 9, a coarse-grained silica sand separation portion is provided. The characteristic values (artificial turf mat, filler material, and filling amount) of the collected artificial turf used in the operation are as shown in Table 2. Circulating supply amount of washing water to the artificial turf filler separating and collecting device and artificial turf The amount of (mat + filler) supplied was as shown in Table 3.

  The operation results are as shown in Table 4. As shown in Table 4, the entire amount of silica sand and elastic aggregate could be separated and recovered, and the entire amount of wash water used was circulated. The recovered silica sand and elastic aggregate could be recycled for artificial turf construction, quartz sand for civil engineering work, and elastic aggregate for thermal recycling. The artificial turf mat that had been cleaned and from which the filler was separated could be used for thermal recycling.

1 is an overall configuration diagram of an artificial turf filler separation and recovery device according to the present invention. It is sectional drawing of an artificial turf washing tank. It is a top view of the artificial turf filler sorting apparatus. It is AA sectional drawing of the artificial turf filler sorting apparatus shown in FIG. It is BB sectional drawing which shows the connection of a water tank main body and an elastic aggregate sedimentation apparatus. It is typical explanatory drawing near the discharge outlet of a water tank main body. It is CC sectional drawing of an inclination and a vibration sieve. It is DD sectional drawing which shows a vibration motor attachment part state. It is typical explanatory drawing of the discharge outlet vicinity in the case of having a coarse-grained silica sand separation part. It is a typical explanatory view of artificial grass.

Explanation of symbols

10: Artificial grass cleaning tank
12: Flush tank
20: Artificial grass filling material separation device
22: Aquarium
23: Aquarium body
25: Silica sand reservoir
26: Elastic aggregate outlet
28: Silica sand-elastic aggregate separation part
30: Inclined / vibrating sieve
31: Mount
32: Spring
33: Wire mesh
37: Vibration motor
39: Elastic aggregate escape prevention net
40: Coarse silica sand separation part
43: Opening
50: Silica sand recovery device (screw conveyor)
53: Silica sand discharge part
60: Elastic aggregate sedimentation device
61: Settling tank
70: Elastic aggregate drainage collection device
71: Draining tank
72: Wash water recovery tank

Claims (9)

  A filler consisting of silica sand and elastic aggregate recovered from the artificial turf is supplied from the upper end of the inclined / vibrating sieve immersed in the water tank, and the silica sand content is subsidized to the bottom of the water tank, and the elastic bone A method for separating artificial turf filling material, wherein the material is flowed down together with washing water, guided into an elastic aggregate recovery tank and allowed to settle.   2. The method for separating artificial turf filler according to claim 1, wherein coarse silica sand remaining on the inclined / vibrating sieve is introduced to a bottom of the water tank from a dropping port provided on the inclined / vibrating sieve.   Washing the collected artificial turf with washing water and collecting the artificial turf filler together with the washing water; and by separating the artificial turf filler into quartz sand and elastic aggregate according to the method for separating artificial turf filler according to claim 1 or 2 A method for separating and collecting artificial turf filler, comprising: a step of separating; and a step of dewatering the silica sand and elastic aggregate separated in the step to collect the silica sand and elastic aggregate. It consists of a water tank and an inclined / vibrating sieve.
The water tank main body having a filler supply part for supplying artificial turf filler together with cleaning water at the upper part, a silica sand storage part at the lower end, and an elastic aggregate discharge port for discharging elastic aggregate together with the cleaning water on one side surface And an elastic aggregate settling tank that is connected to the water tank main body and receives the elastic aggregate discharged from the elastic aggregate discharge port together with cleaning water and sinks the elastic aggregate to the bottom,
The inclined / vibrating sieve has a bottom end that is positioned above the upper edge of the elastic aggregate outlet so that its lower end faces the elastic aggregate settling tank from the elastic aggregate outlet. Inclined and extended between two opposing surfaces, and is submerged in the tank body except for the upper end, and the washing water is placed near the upper end of the inclined / vibrating sieve together with the artificial turf filler. The artificial turf filling material separation device is characterized in that the silica sand content of the artificial turf filling material is settled in the quartz sand storage part of the water tank main body by supplying from the water.   5. The artificial turf filling according to claim 4, wherein the inclined / vibrating sieve has a sieve mesh that does not allow the elastic aggregate of the artificial turf filler to pass through and allows the silica sand to pass through. Material separation device.   6. The artificial turf filler separating apparatus according to claim 4, wherein a coarse silica sand falling part is provided at a terminal part of the inclined / vibrating sieve.   The inclined / vibrating sieve has an upper surface covered with an elastic aggregate escape prevention network at least over a range extending below the water surface. Artificial grass filling material separation device. It consists of an artificial turf filler separating device, a silica sand collecting device and an elastic aggregate draining and collecting device,
The artificial turf filling material separation device is according to any one of claims 4 to 7,
The silica sand recovery device extends obliquely upward from the lower end of the silica sand storage part of the artificial turf filler separation device, and the upper end is located above the water level of the water tank, and is installed at the upper end of the screw conveyor A silica sand discharging part,
An artificial turf filler separation and recovery device, wherein the elastic aggregate drainage recovery device includes an elastic aggregate drainer and a washing water filtration and regeneration unit discharged from the elastic aggregate drainer. 9. The artificial turf filler separation and recovery device according to claim 8, further comprising a recovery artificial turf washing tank in the preceding stage, and a return of the washing water from the washing water filtration and regeneration unit of the recovered elastic draining recovery device to the artificial turf filling washing tank Artificial turf filling material separation and recovery device characterized by comprising piping.

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