KR101182416B1 - Recycling method and apparatus for artificial turf structure - Google Patents

Abstract

PURPOSE: A recycling method for artificial turf structures and an apparatus thereof are provided to recycle artificial turf piles by separating the piles form air bubble layers in waste artificial turf structures. CONSTITUTION: A recycling method for artificial turf structure is as follows. Artificial turf structures are input to an apparatus and the air bubble layer of the artificial turf structures are crushed by using a crushing roller(200) comprising blades. The crushed air bubble layer is separated with artificial turf piles.

Description

Recycling Method and Apparatus for Artificial turf structure

The present invention relates to a method for recycling artificial turf including a fiber structure, and more particularly, to a method for regenerating an artificial turf structure which can prevent environmental pollution by separating artificial turf files from an artificial turf structure and recycling artificial turf. It relates to a playback device.

Turf is used for stadium applications because it is resistant to frequent cutting of land cover covering land surface and has compressive recovery characteristics. Natural grass contains enough moisture, so it is textured and cushioned, so it is safe from the risk of injury and there are few scratches caused by friction when it is slipped (excellent mobility). However, as the use is continued, there is a drawback of severe wear against external force due to severe pressure. Therefore, in the case of natural grass stadium, there is a limit to the number of days of use of the natural grass field because it must be replaced after 2 to 3 days to protect the root of the natural grass. Thus, research has been made on artificial turf having durability, such as wear resistance and shape stability, which is easy to manage and expresses a natural grass feel.

These artificial grasses are substitutes for natural grasses that have been shaped and artificially used since they were first manufactured in the United States, and have been used mainly in sports fields, such as indoor gardens where grass growth is impossible or outdoor areas facing north of high-rise buildings with very limited sunshine hours. You can use it everywhere. The artificial turf is always green and is not limited by environmental conditions, so it is easy to manage after construction. Artificial turf ball with artificial turf has higher initial construction cost than general natural turf, but it is highly preferred due to its semi-permanent use, ease of maintenance, and smooth surface for exercise. In artificial turf for sports, artificial turf was used as a means to absorb the impact of athletes and to secure a series of appropriate performances, such as tooling, splashing, and speed change after the ball was bound to the ground. .

In general, the artificial turf structure is a carpet form, the artificial turf pile is located on the front, the rear is composed of a bubble layer supporting the artificial turf pile and a coating resin applied to increase the pull strength of the artificial turf pile on the back of the bubble layer. The artificial grass pile and the support are polyethylene, polypropylene, polyamide, and the like, and the coating resin is latex, acrylic resin, styrene-butadiene rubber (SBR), or the like.

Further, in order to impart an elastic force to such artificial turf structure, an elastic body such as silica sand, rubber or silicon particles having a small particle size is filled with a filler.

Such artificial turf structure is inevitable to be replaced after several years of construction due to the loss of artificial turf pile or wear and tear. Recently, the artificial turf structure needs to be regenerated for environmental protection and resource saving.

However, the artificial turf structure, which has been replaced at the end of its life, has a long lifespan despite the fact that the artificial turf pile is embedded in the bubble layer, and the separation of the coating resin is cumbersome and time consuming. All artificial turf is incinerated after collection. As a result, there was a problem that causes waste of resources and environmental pollution.

In order to solve the above problems, an object of the present invention is to provide an artificial turf structure manufacturing method for separating the components that can be recovered by separating the artificial turf file and the bubble layer in the artificial turf structure recovered at the end of its life. .

Another object of the present invention is to provide an artificial turf structure manufacturing apparatus for effectively separating an artificial turf pile and a bubble layer from an artificial turf structure.

In order to achieve the above object, the present invention provides a method for regenerating an artificial turf structure formed of an artificial grass pile and a bubble layer, the supplying step of supplying the artificial turf structure; A crushing step of crushing the bubble layer of the supplied artificial turf structure; And a separation step of separating the crushed bubble layer from the artificial turf pile.

The present invention also provides a method for regenerating the artificial turf structure, further comprising a packaging step of packaging the artificial turf file separated after the separation step.

In addition, the separation step provides a method for regenerating the artificial turf structure, characterized in that one or a combination of two or more selected from the particle size separation, specific gravity separation, electrostatic separation method.

The present invention also provides a method for regenerating an artificial turf structure, further comprising a washing step of washing and drying the artificial turf file separated after the separation step.

The present invention also provides an apparatus for regenerating an artificial turf structure formed of an artificial grass pile and a bubble layer, comprising: a supply roll for supplying the artificial turf structure; A crushing roll having a plurality of blades formed to crush the artificial turf structure introduced by the feed roll; In the crushed artificial turf structure provides an apparatus for regenerating the artificial turf structure, characterized in that it comprises a foreign matter separation unit for separating the artificial grass pile and the bubble layer.

In addition, the foreign matter separating unit provides a regeneration apparatus for the artificial turf structure, characterized in that the artificial turf pile and the bubble layer is separated while the artificial turf structure crushed between the rolls through a multi-stage roll transfer device.

In addition, the foreign material separating unit provides a regeneration apparatus for the artificial turf structure, characterized in that the particle size selection device or the specific gravity separation device.

The present invention also provides a regeneration apparatus for an artificial turf structure, characterized in that a perforated plate is formed to separate and disintegrate the crushed bubble layer at the bottom of the multi-stage roll transfer device.

In addition, at the bottom of the perforated plate provides a regeneration apparatus of the artificial turf structure, characterized in that one or a plurality of conveyor belts for discharging the crushed bubble layer discharged to the perforated plate is formed.

The present invention also provides a recycling apparatus for an artificial turf structure, characterized in that a compression packaging device for compressing and packing the artificial turf file separated by the foreign matter separating unit is formed.

The present invention also provides a regeneration apparatus for an artificial turf structure, characterized in that a washing apparatus for washing and drying the artificial turf file separated by the foreign matter separating unit and a compression packing apparatus for compressing and packing after washing are formed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially", and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the meanings indicated are intended to aid the understanding of the invention. Accurate or absolute figures are used to assist in the prevention of unfair use of unscrupulous infringers.

1 is a process chart showing a method for regenerating the artificial turf structure of the present invention, Figure 2 is a simplified device configuration of the apparatus for regenerating the artificial turf structure showing an embodiment of the present invention, Figure 3 is an artificial turf according to the present invention 4 is a block diagram showing an embodiment of the foreign material discharge conveyor belt of the structure regeneration device, Figure 4 is a block diagram showing an embodiment of a compression packaging device of the artificial turf structure regeneration device according to the present invention.

The regeneration method of the artificial turf structure of the present invention may further include a feeding step, a crushing step, a separation step and an additional packing step as shown in FIG. 1.

In general, when the artificial turf structure is formed of a bubble layer on which artificial turf piles and artificial turf piles are planted, the bubble layer is bubbled to increase the pullout strength of the bubble and artificial turf piles in the form of woven fabrics, knitted fabrics, and nonwoven fabrics. It is formed of a coating resin applied to the back.

 In order to increase the elasticity of the artificial turf structure as described above, the artificial turf structure having the end of life as the filler is used in a form filled between the artificial grass pile contains the filler.

In the method of regenerating the artificial turf structure of the present invention, the filler may be separated, but it may be preferable to use the artificial turf structure in which the filler is separated for efficiency of operation.

The filler can be separated by a device of Patent Application No. 10-2011-0096518 (name of the invention: recycling apparatus for artificial turf including a fiber structure).

The supplying step is to supply the artificial turf structure as described above to continuously supply the artificial turf structure to the crushing step.

The crushing step is a step of crushing the artificial turf structure to crush the artificial turf pile and the bubble layer to facilitate separation.

The separating step is to separate the artificial turf file and the bubble layer separated from each other so that the artificial turf file and the bubble layer can be collected separately.

The separation step may be selectively carried out in one or two or more methods, such as particle size separation, specific gravity separation, electrostatic separation method, depending on the material of each component of the artificial turf structure.

The artificial turf pile and the bubble layer separated through the separating step may further include a packing step for packing for transportation.

The packaging step is preferably packaged by compressing the artificial turf file, the bubble layer, it may be packaged by various packaging methods other than compression packaging.

Alternatively, after the separation step, a washing step of washing and drying the artificial turf pile and the bubble layer may be performed. When melted to recycle separated artificial turf piles and zippo layers, it is possible to improve the physical properties of recycled plastics by removing foreign substances such as fine dust from the artificial turf piles.

If the washing step is to proceed with the packaging step it would be preferable to proceed before the packaging step.

The method for reproducing the artificial turf structure will be described in more detail with reference to the artificial turf structure reproducing apparatus.

The regeneration apparatus for regenerating the artificial turf structure according to the present invention as described above is basically composed of a supply rule 100, shredding rolls 200, foreign matter separation unit.

One preferred embodiment of the present invention configured as described above is shown in FIG.

As shown in FIG. 2, the supply roll 100 has a plurality of blades formed on the surface of the roll in the form of a roll for supplying the artificial turf structure to crush the artificial turf structure together with the crushing roll 200.

The shredding roll 300 has a plurality of blades are formed on the surface of the roll, such as the feed roll 100 in the form of a roll to crush the artificial turf structure to crush the artificial turf structure.

The blade formed on the crushing roll 200 and the blade formed on the supply roll 100 may be formed to mesh with each other or to cross each other.

The blade of the crushing roll 200 and the blade of the supply roll 100 is preferably a blade in the rotational direction of the roll, or may be formed in an oblique direction in the rotational direction.

When the blade direction is formed in an oblique direction it is preferable that a plurality of blades are formed at different angles.

Artificial turf pile of the artificial turf structure is a fibrillated yarn (fibrilate yarn) or a monofilament yarn (monofilament yarn) of the feed roll 100 and the shredding roll 200 of the blade of the large amount is not crushed, carpet form The bubble layer of is crushed predominantly so that the artificial turf pile and the bubble layer can be separated.

The foreign matter separation unit may proceed in a variety of ways by separating the artificial turf pile and the bubble layer is separable by the supply roll 100 and the crushing roll 200.

As an example of the foreign material separating unit, the foreign material separating unit may be configured as a multi-stage roll transfer device 300 as shown in FIG. 2.

The multi-stage roll feed device 300 is composed of a plurality of rolls, the plurality of rolls to convey the crushed artificial turf structure while rotating in a different direction than the adjacent roll.

The artificial grass pile is a device that separates the artificial grass pile and the bubble layer while passing the artificial turf structure crushed by the crushing unit 200 between the rolls, and is transferred between the rolls of the multistage roll transfer device in the form of a long fiber, and the crushing roll 200 The bubble layer cut by) is separated from the artificial turf pile by the pressure between the rolls.

In order to increase the separation efficiency of the multi-stage roll transfer device 300, it may be desirable to form a perforated plate 400 in which the coated resin is separated and discharged at the lower end of the multi-stage roll transfer device 300.

The perforated plate 400 is formed so as to be spaced apart from the multi-stage roll transfer device 300 at a predetermined interval to prevent the loss of artificial turf files that are separated between the rolls and to separate and discharge only the bubble layer and the filler not removed.

It is preferable that the foreign material discharge conveyor belt 600 for discharging the crushed bubble layer separated and discharged into the perforated plate at the bottom of the perforated plate 400 is formed.

As shown in FIG. 3, the foreign material discharge conveyor belt 600 may separately collect the crushed bubble layer formed by one or more conveyor belts and discharged from the artificial turf pile.

The foreign matter separation unit may separate the artificial turf pile and the crushed bubble layer by using a particle size selection device or a specific gravity separation device in addition to the multi-stage roll transfer device (300).

A compression packing device for compressing and packing the artificial turf file may be formed for the artificial turf file separated through the foreign matter separation unit such as the multi-stage roll transfer device 300, the particle size selection device or the specific gravity separation device.

The compression packaging apparatus may be any compression packaging apparatus currently used, but it may be preferable to use a screw compression packaging apparatus 500 as shown in FIG. 4 in order to reduce work efficiency and processing time.

The screw compression packing device 500 may reduce the regeneration time of the artificial turf structure by discharging to the outside while continuously compressing the artificial turf file separated from the foreign matter separating unit.

In addition, the artificial turf pile separated by the foreign matter separating unit, it is possible to form a washing apparatus for washing and drying the bubble layer. As described above, this is a device for removing foreign matters such as artificial turf piles and fine dust on the bubble layer, and it may be preferable that the cleaning device be configured to be carried out before compression packing.

As described above, the method and the apparatus for regenerating the artificial turf structure according to the present invention have the effect of preventing the environmental pollution by separating and recycling the artificial turf file and the bubble layer from the recovered artificial turf structure.

In addition, since water is not used in the crushing and separating steps of the artificial turf structure, there is an effect of simplifying the process and reducing regeneration costs.

In addition, there is an effect of providing an apparatus for regenerating the artificial turf structure that can be collected by separating only the artificial turf files in order to improve the physical properties and purity of the resin produced by the collection collected from the artificial turf structure.

1 is a process chart showing a regeneration method of the artificial turf structure of the present invention.
Figure 2 is a simplified device configuration of the artificial turf structure reproducing apparatus showing a preferred embodiment of the present invention.
Figure 3 is a block diagram showing an embodiment of the foreign material discharge conveyor belt of the artificial turf structure regeneration device according to the present invention.
Figure 4 is a block diagram showing an embodiment of a compression packaging apparatus of the artificial turf structure reproducing apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited by the following examples.

Table 1 shows the materials and contents of the replaced artificial turf structures used in Examples and Comparative Examples.

division Artificial Grass Pile Yarn Bubble layer Coating resin filling Material PE fibrils PP mono shock PP film 絲 SBR Latex Rubber chip Quartz sand Weight (g / ㎡) 1250 300 330 550 11000 25000

The filler is a device of Patent Application No. 10-2011-0096518 (name of the invention: recycling apparatus of artificial turf including a fiber structure) artificial turf structure regeneration device of the present invention the artificial turf structure in which the filler is separated from the artificial turf structure Using to separate the artificial grass pile and the bubble layer.

Example 1

Artificial grass structure using the artificial turf structure recycling apparatus of the present invention consisting of a foreign material separating portion of the feed roll, crushing roll, multi-stage roll conveying apparatus and the punched plate and the foreign substance discharge conveyor belt, screw compression packing device shown in Figure 2 to 4 The artificial turf pile and the bubble layer were respectively separated.

Example 2

A particle size separation apparatus using a feed roll and a crushing roll of Example 1, which was a sifter using a vibrating body, was used.

Comparative Example 1

The artificial turf structure was cut to a width of 50 cm.

Comparative Example 2

The artificial turf structure was crushed through a conventional waste vinyl regeneration process, put into a bath to precipitate foreign matter, and only the material suspended in water was collected and dehydrated (dried) by a centrifugal dehydrator.

◈ Plastic Chip Manufacture Evaluation and Property Evaluation

As described above, the artificial turf pile separated from the artificial turf structure was melt-compressed to produce chips and plastic specimens, and the manufacturability of the chips and the physical properties of the specimens are shown in Table 2. If the compression was carried out in two stages, the extrusion temperature and the filter are as follows.

1) 1st extruder: 180 ~ 280 ℃ temperature gradient

2) Second Extruder: 180 ~ 210 ℃ Temperature Gradient

3) Polymer filter: 20 necks / ㎠, 2 layers used

division Extrusion workability Pellet State Pellet Properties Plastic Specimen Properties Primary extruder Secondary extruder Elongation bubble
Occur smell MI (@ 190 ℃, 2.16kg) The tensile strength
[ASTM D638] Elongation at Break
[ASTM D638] Izod impact strength
[ASTM D256] Example 1 Good Good Good Good Weak rubber smell 1.13 190 185 38 80.2 Example 2 Good Good Good handful Weak rubber smell 1.10 185 32 73.8 Comparative Example 1 Good Mesh clogging often occurs Cannot be manufactured Cannot be manufactured Cannot be manufactured - - - - Comparative Example 2 Good Intermittent mesh clogging Intermittent truncation many Strong rubber smell 0.96 166 18 35.0

As shown in Table 2, in Examples 1 and 2, the residual filler (rubber chip, silica) and the coating resin in the artificial turf fabric were effectively separated and melted through the crushing step and the separating step (multi-stage roll feeding device, vibrating body). It can be confirmed that the excellent flow (MI) and plastic specimen physical properties.

In the case of Comparative Example 1, there was no separate separation of the residual filler and the bubble layer, and thus the extrusion and chip manufacturing were impossible due to the clogging of the polymer filter and the melt flowability during melt extrusion. In the case of Comparative Example 2, the whole artificial grass fabric was crushed finely. The remaining fillers (rubber chips, silica sand) are partially separated during the bath, but the physical properties of the recycled resin (tensile strength, elongation, Izod) are difficult to effectively separate the coated resin contained in the bubble layer and bubble layer. Impact strength, etc.) can be seen to fall compared to Example 1 and 2.

100: supply roll 200: crushing roll
300: multi-stage roll feed device 400: punched plate
500: compression packing device 600: foreign material discharge conveyor belt

Claims (11)

In the method of regenerating artificial turf structure formed of artificial turf pile and bubble layer,
A supplying step of supplying the artificial turf structure;
A crushing step of crushing the bubble layer of the supplied artificial turf structure with a crushing roll having a blade formed in a rotational direction;
And a separation step of separating the crushed bubble layer from the artificial turf pile. The method of claim 1,
Recycling method of artificial turf structure characterized in that it further comprises a packaging step of packing the artificial turf file separated after the separation step. The method of claim 1,
The separating step is a method for regenerating artificial turf structure, characterized in that the selected one of the particle size separation, specific gravity separation, electrostatic separation method. The method of claim 1,
And a washing step of washing and drying the artificial turf file separated after the separating step. In the regeneration apparatus of the artificial turf structure formed of the artificial turf pile and the bubble layer,
A supply roll 100 for supplying the artificial turf structure;
A crushing roll (200) having a plurality of blades for crushing the artificial turf structure introduced by the feed roll (100);
Including the foreign matter separation unit for separating the artificial turf pile and the bubble layer in the crushed artificial turf structure,
The blade of the crushing roll 200 and the blade of the supply roll 100 has a blade in the rotational direction of the roll, the foreign matter separating portion artificial turf structure crushed between the rolls by the multi-stage roll transfer device 300 passes through the artificial Apparatus for regenerating artificial turf structure comprising separating the grass pile and the bubble layer. delete delete The method of claim 5,
Recycling apparatus for artificial turf structure, characterized in that the perforated plate 400 is formed to separate and discharge the crushed bubble layer at the bottom of the multi-stage roll transfer device. The method of claim 8,
Recycling apparatus for artificial turf structure, characterized in that the foreign material discharge conveyor belt 600 for discharging the crushed bubble layer is separated and discharged to the perforated plate at the bottom of the perforated plate. The method of claim 5,
Recycling apparatus for artificial turf structure, characterized in that the compression packaging device 500 for compressing, packing the artificial turf file separated by the foreign matter separating unit is formed. The method of claim 5,
And a washing apparatus for washing and drying the artificial turf file separated by the foreign matter separating unit, and a compression packing apparatus for compressing and packing the washing after drying.

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