KR20220152872A - Rainwater storage tank using composite recycled raw materials and method for manufacturing thereof - Google Patents

Abstract

Disclosed is a rainwater storage tank using a composite recycled material. The disclosed rainwater storage tank using a composite recycled raw material includes: a plurality of blocks made of a composite recycled material, which are located in a storage space and formed into a hexahedron shape having a structure with adjacent sides closed, a structure with one side closed and a structure with all sides open; a plurality of finishing members made of a composite recycled material, which are finished and installed in a square plate shape in upper and lower parts of the blocks; and a coupling member connecting the plurality of blocks and/or the blocks and the finishing members with each other such that the components can be assembled. The blocks include: a plurality of first blocks disposed at the edge corners of the storage space and formed in a structure in which upper and lower sides are open and two adjacent sides are closed; a plurality of second blocks connected to the first blocks, disposed at the edge of the storage space, and formed in a structure in which upper and lower sides are open and one side is closed; and a plurality of third blocks disposed in an internal space formed by the first and second blocks connected to each other and surrounding the edge of the storage space, and formed in a structure in which the upper and lower sides are open and all sides are open. Therefore, since the rainwater storage tank can be mutually fitted to be assembled without a special tool, a rainwater storage space of a large capacity can be provided in contrast to a site area, and the rainwater storage tank can be reassembled and reused in various shapes when the site area is changed.

Description

Rainwater storage tank and its manufacturing method using composite recycled raw materials {RAINWATER STORAGE TANK USING COMPOSITE RECYCLED RAW MATERIALS AND METHOD FOR MANUFACTURING THEREOF}

The present invention relates to a rainwater storage tank using composite renewable raw materials, and in detail, it can be assembled in a fitting manner without special tools to provide a rainwater storage space with a large capacity compared to the site area and to be reassembled in various shapes when the site area is changed. And it relates to a rainwater storage tank using a reusable composite renewable raw material.

In the era of global warming and climate change, 'water management' is becoming an important concern. In particular, each city is interested in the expansion of rainwater storage facilities. Prior to urban development, the rainwater infiltration rate was high, so the rainfall runoff was low and the groundwater content was high. Therefore, the cause of flood damage is the decrease in urban rainwater permeation rate, and efficient drainage infrastructure is required.

These rainwater storage tanks suppress the outflow of rainwater to restore various natural water circulation functions such as flood control, improvement of thermal environment, preservation and restoration of ecosystem, securing of river flow rate, conservation and development of water resources, and control of non-point pollution sources. In addition, the effect of installing a rainwater storage tank is to control the peak flow rate and river pollution load, secure the flow rate of the river, revitalize green areas and street trees by recycling rainwater as landscaping trees, and prevent the urban heat island phenomenon by preventing temperature rise due to evaporation. It has the advantage of being able to create a valuable space by appropriately combining a storage facility and a waterfront facility.

The existing rainwater storage tank was a method of constructing a structure by continuously performing the formwork, reinforcing bar, and concrete processes by skilled workers. Therefore, a separate design was required for each site, so the construction period was long (60 days for a 100-ton scale), and there was a high risk of safety accidents due to variations in quality depending on the skill level of workers and the weather, or the process was complicated and there was a lot of movement.

Meanwhile, since 2018, exports to China have been banned according to the Chinese government's ban on imports of 24 types of waste, including waste vinyl. In addition, as the Framework Act on Resource Circulation took effect in January 2018, 'waste disposal (incineration and landfill) charges' have been imposed. Due to these factors, there has been a crisis in the treatment of recycling waste such as waste vinyl. In addition, a significant portion of waste vinyl is recycled as solid fuel products (SRF, Solid Refuse Fuel), but recently, the domestic new and renewable energy policy has been developed in the direction of avoiding waste SRF energy, so uncertainty in the future recycling demand is increasing. have. Therefore, in the case of waste vinyl, the necessity of recycling materials that are reborn as molded articles through a molding process is emerging.

Patent Document 1 relates to a rainwater storage tank, and the sealing material is fastened to a nut member embedded in a slab by a male screw on one side of a screw member through a through hole formed on an inclined surface of a column of a block, and a nut is screwed in a nut seating groove formed on the inclined surface. It is disclosed that the member is compressed between the block and the slab by being fastened to the male screw on the other side.

Patent Document 2 relates to a rainwater storage tank, and a coupling portion is formed on the bottom plate of the storage block so that each block can act integrally with the foundation surface, and the coupling portion protrudes in the same direction as the side where the stepped portion is formed. It is disclosed that the reinforcing bar is integrally formed.

The rainwater storage tank disclosed in Patent Documents 1 and 2 may take a long time to construct because each block and slab are combined with a separate coupling member such as a screw member or a reinforcing bar. In addition, in the prior art, as only the left and right side couplings are possible, a method for stacking when the installation space of the rainwater storage tank is narrow or used in a site with high land is not described.

Therefore, there is a need for a rainwater storage tank that can shorten the construction time without requiring a separate coupling member and can be installed in a narrow site because it can be laminated and assembled. In addition, continuous research is being conducted on new rainwater storage tanks that can recycle waste vinyl, solve urban environmental problems by promoting water reuse, and reduce construction costs with less labor and time with stable structure and strength. have.

Registered Patent Publication No. 10-0485742 (2005.04.19.) Registered Patent Publication No. 10-0582121 (2006.05.22.)

The present invention was devised in view of the above points, and it is possible to assemble by fitting each other without special tools to provide a rainwater storage space with a large capacity compared to the site area and to be reassembled and reused in various shapes when the site area is changed. Its purpose is to provide a rainwater storage tank and its manufacturing method using composite renewable raw materials.

In order to achieve the above object, the rainwater storage tank according to the present invention is located in the storage space and is composed of a hexahedral structure in which two neighboring sides are closed, one side is closed, and the entire side is open. a plurality of blocks made of raw materials; A plurality of finishing members made of composite recycled raw materials, which are installed in the upper and lower parts of the block in a rectangular plate shape; And formed on the block and the closure member, including a coupling member for coupling and connecting to each other so as to be assembled between the plurality of blocks and between the block and the closure member, the block being disposed at the edge corner of the storage space , a plurality of first blocks formed in a structure in which upper and lower surfaces are open and two adjacent side surfaces are closed; a plurality of second blocks coupled to the first block and disposed at the edge of the storage space, having upper and lower surfaces open and one side closed; And the first block and the second block are connected to each other to form an inner space surrounding the edge of the storage space and disposed in the inner space, and a plurality of second blocks having a structure in which upper and lower surfaces are open and entire side surfaces are open. It can contain 3 blocks.

The closing member includes a plurality of upper closing members consisting of an upper sealing portion protruding from the center to seal the open top of the block and an upper protrusion formed at at least one corner so as to be fitted with the upper surface of the block; And it may include a plurality of lower closing members consisting of a lower sealing part protruding from the center to seal the open lower part of the block and a lower groove part having a groove formed at at least one corner so as to be fitted with the lower surface of the block. have.

The coupling member is located at one end of the edge of the upper or lower surface of the block, and may include a layer assembly groove or a layer assembly projection that is custom-fitted with the upper projection and the lower groove of the closing member and capable of stacking assembly. have.

The coupling member may include a side assembly member protruding from the side of the block; and a side assembly arm portion positioned on a side surface of the block and into which the side assembly arm portion of another block is inserted, so that left and right side surfaces between the blocks are fitted into each other in a male-female coupling.

The side assembly arm part includes an arm locking portion in which the accommodating space becomes narrower towards the outside, and the side assembly arm part includes a male locking portion that is forcibly fitted while sliding into the arm locking part and is formed to expand toward the outside. As the hooking parts are located symmetrically crosswise with respect to the vertical axis and are intermittently fitted to each other while sliding, the blocks may not be separated from each other along the horizontal axis.

The coupling member has an accommodation space formed on the side surface of the block, and a side assembly arm part in which an arm engaging part is formed so that the accommodation space becomes narrower toward the outside; and a reinforcing member which is inserted between the at least two side assembly arm parts and has a neck part formed in the center in the longitudinal direction so as to be intermittently fitted while sliding up and down and fitted to the arm engaging part, and reinforcing the coupling between the blocks. can do.

In addition, the manufacturing method of the rainwater storage tank includes the steps of preparing a composite renewable raw material; Forming a block with pellets made of the composite recycling raw material; The method may include assembling the first block, the second block, the third block, and the finishing member into a coupling member for coupling and connecting each other.

The step of producing the composite recycled raw material includes first crushing the waste vinyl to an area of 400 cm 2 to 600 cm 2 using a first shredding unit; sorting out foreign substances from the primarily shredded waste vinyl using a specific gravity sorter; secondarily crushing the waste vinyl that has passed through the specific gravity sorter into an area of 25 cm2 to 100 cm2 using a second crushing unit; removing metals included in the waste vinyl that passed through the second shredding unit using a magnetic separator; additionally removing foreign substances from the waste vinyl that has passed through the magnetic sorter using a wind-powered sorter according to a difference in specific gravity; removing internal air bubbles or moisture from the waste vinyl that has passed through the wind power sorter using a compressor; using a first melting extruder to first melt and mix the waste vinyl from which foreign substances have been removed through the compressor at 150° C. to 200° C. and extruding; By using the second melt extruder, the waste vinyl passed through the first melt extruder is melted and mixed for the second time at 150 ° C to 250 ° C, and then through a single screw, a grid pattern having a neck gap of 3 mm to 10 mm in width and length, respectively, is used. extruding through the diameter of the rear end discharge nozzle formed in the form; cutting and cooling the waste vinyl passed through the second melt extruder using a water cutting machine and producing final pellets; Transferring, separating, and dewatering the pellets passing through the water cutting machine using a vibrating vibrator may be included.

The pellets may have a tensile strength and flexural strength of 18 MPa or more, an ash content of 2.55% or less, an impurity of 2% or less, a chlorine concentration of 0.38% or less, and an average particle size of 99% or less of 5 mm or less.

1 is a layout view showing an example of unit block assembly of a rainwater storage tank disposed in a storage space according to an embodiment of the present invention.
2 is an enlarged plan view of a part of the unit block of FIG. 1;
Figure 3 is an assembled perspective view showing the assembly between the coupling member of the first block and the finishing member according to an embodiment of the present invention.
Figure 4 is an assembled perspective view showing an example of unit block assembly according to an embodiment of the present invention.
Figure 5 is an assembled perspective view showing the assembly between the coupling member of the second block and the third block according to an embodiment of the present invention.
Figure 6a is a three-dimensional view showing the assembled state of the block according to an embodiment of the present invention.
Figure 6b is a block perspective view of Figure 6a viewed from the outer side.
Figure 7 is an assembled perspective view showing the assembly between the coupling member of the first block and the second block according to another embodiment of the present invention.
8 is an enlarged plan view of a part of the unit block of FIG. 7;
Figure 9 is a process photograph showing the step of manufacturing a composite renewable raw material in the manufacturing method of a rainwater storage tank using a composite renewable raw material according to an embodiment of the present invention.
Figure 10 is a process flow chart of the step of manufacturing the composite renewable raw material of Figure 9;
FIG. 11 is a front view showing the waste vinyl wind power separator during the process of FIG. 10;
Figure 12 is a perspective view showing an extract of the wind power generator of Figure 11;
Fig. 13 is a side view of Fig. 12;
14(a) and 14(b) are views showing a modified example of the wind deflection unit of FIG. 13, respectively.
15 is a TGA analysis result and an external photograph of a pellet according to an embodiment of the present invention.
16 is a TGA analysis result and an external photograph of a pellet according to a comparative example of the present invention.

The term "block" used in the present invention is used as a meaning including "rainwater storage tank block body". In addition, in this application, "manufacturing method" encompasses "manufacturing method of raw materials (composite renewable raw materials or pellets)", "assembly method of block", "construction method of rainwater storage tank" or "installation method of rainwater storage tank", etc. used in the sense of

In addition, in this application, terms such as "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more It should be understood that the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Rainwater retention tank types can be largely classified into three types: box type, cross wave type, and complex type. First, the box-type rainwater storage tank is a system that assembles a factory-manufactured (PC) box-type integral structure with steel wires on site. The design is standardized, so the construction period can be greatly shortened (14 days in the case of 100-ton scale), and the use of factory products ensures high quality and high durability, making work simple and easy to manage safety. In addition, although there are advantages such as low noise and almost no generation of construction waste materials, there are disadvantages such as being restricted by the site shape and needing to secure a delivery route compared to the cast-in-place method. As for the maintenance of the system, it is possible to remove debris by installing a fine screen, and it is possible to prevent the spread of suspended matter by creating a sedimentation tank by installing a bulkhead and overflow wall. Therefore, it is possible to reduce maintenance costs by centrally managing the inside of the sedimentation tank.

Second, the cross-wave type rainwater storage tank, which can secure up to 93% of porosity, does not require a curing period, shortens the construction period, and does not require a joint member, so it is easy to construct and can be installed up to 5.7m underground with a high load capacity design. In addition, a solid structure is built just by stacking them, and the PP (polypropylene) material has excellent chemical resistance and water resistance, so it does not pollute water.

Finally, a composite rainwater storage tank combining a spatial rainwater storage tank and an air gap rainwater storage tank utilizes the rainwater storage tank as a primary storage tank during frequent rainfall and uses a crosswave with a rainwater storage tank as a secondary storage tank during heavy rains. way. Matters to note when designing a storage tank are that treatment through a filter is required before entering the storage tank, and the distance difference between the inlet and outlet must be sufficiently maintained, and the effective water depth in the storage tank must be maintained at 3m or more. In addition, precautions to be taken during maintenance include keeping the rainwater collection surface clean by paying attention to bird droppings, filter cleaning and disinfection facility inspection, cleaning the sludge in the storage tank every 3 to 5 years, and rooting out the cause of artificial rooftop contamination. It is important to block

As described above, the rainwater storage tank according to the present invention may include all the advantages of the three types of rainwater storage tanks. In addition, all facilities and equipment necessary for maintenance that a basic rainwater storage tank must have, such as a fine screen, a bulkhead or overflow wall, a filter at the inlet of the storage tank, a rainwater level measuring sensor and equipment, etc. may be included.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and the same reference numerals are used for the same or similar components throughout the specification.

1 is a layout view showing an assembly example of a unit block of a rainwater storage tank disposed in a storage space according to an embodiment of the present invention, and FIG. 2 is an enlarged plan view of a portion of the unit block of FIG. 1 .

Referring to FIGS. 1 and 2 , the rainwater storage tank may include a plurality of blocks 10 , a plurality of finishing members 20 and a coupling member 30 .

First, the plurality of blocks 10, that is, the block body of the rainwater storage tank, is located in the storage space 1 and consists of a hexahedron, so that two adjacent sides are closed, one side is closed, and the entire side is open. It can be made of composite recycled raw material (50). The plurality of finishing members 20 are installed in a rectangular plate shape on the upper and lower portions of the block 10, and may be made of composite recycled raw material 50. The coupling member 30 is formed on the block 10 and the finishing member 20, and may be coupled and connected to each other so as to be assembled between a plurality of blocks 10 and between the block 10 and the finishing member 20. The size of the block 10 may be 60 cm in width, length and height, respectively. It may be made of a cube, but is not limited thereto, and may be a rectangular parallelepiped and have a height of 60 to 100 cm.

Here, the block 10 may include a first block 11, a second block 12 and a third block 13. First, the first block 11 is disposed at the edge corner of the storage space 1, and may consist of a plurality of open upper and lower surfaces and formed in a structure in which two adjacent side surfaces are closed. The second block 12 is coupled to the first block 11 and is disposed at the edge of the storage space 1, and may be formed of a plurality of open upper and lower surfaces and one side closed structure. The third block 13 is the first block 11 and the second block 12 are connected to each other to surround the edge of the storage space 1 to form an inner space and to be disposed in the inner space, the upper and lower surfaces are open The entire side surface may be formed of a plurality of open structures. In addition, the first block 11, the second block 12 and the third block 13, the thickness of the column and the corner portion forming the skeleton in each open structure may be about 4 cm. That is, when the thickness of the block framework is 3 cm to 6 cm, the block 10 has a large rainwater storage space and can support the weight and have the strength to withstand the load when storing rainwater. If it is less than 3 cm, the load-bearing force may be weakened and the structure may collapse during rainwater storage. In addition, when it exceeds 6 cm, the area of the rainwater storage space 1 may be small and it may be difficult to input internal cleaning personnel.

On the other hand, the plurality of blocks 10 are not limited to hexahedrons, and may be applied to various polyhedrons such as tetrahedrons and octahedrons.

Figure 3 is an assembled perspective view showing the assembly between the coupling member of the first block and the finishing member according to an embodiment of the present invention.

Referring to FIG. 3 , the closing member 20 may include a plurality of upper closing members 21 and a plurality of lower closing members 22 . The plurality of upper closing members 21 are formed with an upper sealing part 21a protruding in the center to seal the open top of the block 10, and a protrusion formed at at least one corner so as to be fitted with the upper surface of the block 10 It may be made of an upper protrusion (21b). The plurality of lower closing members 22 have a lower sealing part 22a protruding from the center to seal the open lower part of the block 10, and a groove at least one corner so as to be fitted with the lower surface of the block 10. It may be made of a formed lower groove (22b). Here, it is not limited to having an upper sealing portion 21a and a lower sealing portion 22a, and may or may not exist. However, the upper sealing part 21a and the lower sealing part 22a may play a watertight role so that when the rainwater is filled, the rainwater storage tank is sealed and stored without leaking to the outside.

In addition, the coupling member 30 is located at one end of the corner of the upper or lower surface of the block 10, and is custom-fitted with the upper protrusion 21b and the lower groove 22b of the closing member 20, and stack assembly is performed. Possible layer assembly grooves (31a) or layer assembly protrusions (31b) may be included. Therefore, the rainwater storage tank according to the present invention does not require separate fasteners such as screws, nuts, and reinforcing bars, so the construction time can be shortened, and stacked assembly is possible, so that it can be installed even in a narrow site or a site with a difference in height. The number of floors can be reduced or increased as needed, so it can be used in various sites. However, it is not limited to this, and a layer assembly groove 31a is formed at each corner of the upper finishing member 21 and the lower finishing member 22, and is composed of a separate fastening member to be fastened to the layer assembly groove 31a. It could be.

4 is an assembly perspective view showing an assembly example of a unit block according to an embodiment of the present invention, and FIG. 5 is an assembly perspective view showing an assembly between coupling members of a second block and a third block according to an embodiment of the present invention.

Referring to FIG. 4, the coupling member 30 is located on the side of the side assembly unit 33 protruding from the side of the block and the side assembly unit 33 of another block is inserted, and the left and right sides between the blocks are male and female. It may include a side assembly arm portion 35 to be fitted by coupling. Among the unit blocks, the first block 11 may be disposed at the corner of the storage space 1, and the second block 12 may be assembled and installed on two open sides opposite to the closed structure. An internal space is formed between the second block 12 assembled to the first block 11, and the third block 13, the side of which is both open, can be assembled and installed there.

Referring to FIG. 5 , the side assembly arm part 35 may include an arm engaging part 35a in which the accommodation space becomes narrower toward the outside. Side assembling part 33 may include a female engaging part 33a that is fitted while sliding into the female engaging part 35a and expands toward the outside. The female locking portion 35a and the male engaging portion 33a are positioned symmetrically crosswise with respect to the vertical axis Z, and interlocked with each other while sliding, so that the blocks are not separated and separated on the plane (X, Y). In addition, the protrusions and grooves of the side assembly arm 35 and the side assembly receiver 33 may have a thickness of 1 cm, that is, 0.5 cm to 2 cm, and when this range is satisfied, the contact area is widened and the bonding force is large. can If it is less than 0.5 cm, the contact area is small, so the bonding force is weakened, and when it exceeds 2 cm, the thickness of the skeleton portion of the block 10 is exceeded, so that the assembly function is lost and the bonding force is reduced. Therefore, the rainwater storage tank block body 10 according to an embodiment of the present invention has strong bonding strength and can have a sense of stability in the bonding structure. However, the side assembly arm part 35 and the side assembly part 33 are not limited to the shapes shown in FIGS. 4 and 5, and are combined with half-tuck weaving, tenon weaving, etc. The adhesive surface is wide and can be combined in various ways that can increase the bonding force.

Figure 6a is a three-dimensional view of the main part showing an assembled state of the block according to an embodiment of the present invention, Figure 6b is a block three-dimensional view of Figure 6a viewed from the outer side.

Referring to Figures 6a and 6b, excavation for rainwater storage tank construction on the ground, leveling work and foundation work can be performed. Then, a water-retardant sheet is laid, and the first block 11 on which the lower finishing member 22 is assembled is placed at the edge corner of the storage space 1, connected to the first block 11, and the second block at the edge. (12) can be assembled and positioned. Then, the first block 11 and the second block 12 may be connected to each other to surround the edge of the storage space 1 and form an inner space. By being disposed in the inner space, it is possible to assemble and install a plurality of third blocks 13 made of a structure in which the upper and lower surfaces are open and the entire side surface is open. After arranging one layer in this way, the rainwater storage tank block body 10 can be laminated by stacking on it in the same way. Therefore, the rainwater storage tank according to the present invention can be assembled by fitting each other without special tools to provide a rainwater storage space with a large capacity compared to the site area, and can be reassembled and reused in various shapes when the site area is changed.

Although not disclosed in the drawing, it may include a rainwater inflow manhole having a rainwater inlet on the side through which rainwater flows in, a foreign matter separation device for filtering out foreign matter from the inflow manhole, and the like. In addition, the other side of the rainwater storage tank may include a discharge manhole having an outlet for discharging the stored rainwater. After the final assembly by covering the upper finishing member 21 on the upper part of the rainwater storage tank block body 10 assembled and stacked in the storage space 1, the rainwater storage tank can be completed by surrounding the water-repellent sheet around it, filling it with soil, and burying it. . At this time, when the rainwater storage tank block body 10 is laminated, a worker access passage can be configured along a circulation designed in consideration of maintenance work.

7 is an assembled perspective view showing an assembly between coupling members of a first block and a second block according to another embodiment of the present invention, and FIG. 8 is an enlarged plan view of a portion of the unit block of FIG. 7 .

7 and 8, the coupling member 30 includes a side assembly arm 35 in which an accommodation space is formed on the side of the block, and an arm engaging portion 35a is formed in which the accommodation space becomes narrower toward the outside. can do. Here, the groove thickness of the side assembly arm 35 may have a thickness of 1 cm, that is, 0.5 cm to 2 cm, and when this range is satisfied, the contact area is widened and there may be a great advantage in bonding force. If it is less than 0.5 cm, the contact area is small, so the bonding force is weakened, and when it exceeds 2 cm, the thickness of the skeleton portion of the block 10 is exceeded, so that the assembly function is lost and the bonding force is reduced. Therefore, the distance between the side assembly arm parts 35 may have about 2 cm.

In addition, it is inserted between at least two side assembly arm parts 35, and the neck part 40a is formed in the center in the longitudinal direction so that it is clamped while sliding up and down, and is fitted and coupled with the arm engaging part 35a, and between the blocks It may include a reinforcing member 40 to reinforce the coupling. Here, the reinforcing member 40 may have a thickness of 2 cm. Compared to the thickness between the blocks 10, it may be a thickness suitable for mutual fastening to have a bonding force. That is, when the reinforcing member 40 is 1 cm to 5 cm, the bonding area can be widened and high bonding strength can be obtained. If it is less than 1 cm, the bonding force is weakened, and when it exceeds 5 cm, it becomes thicker than the thickness between the blocks 10 and cannot serve as a reinforcing member.

On the other hand, the coupling member 30 is not limited to the shape shown in FIGS. 1 to 8, and can be applied in various shapes that can be assembled. As the neck portion 40a and the arm engaging portion 35a come into contact with each other, separation and separation between the blocks 10 may be prevented and bonding force may be increased.

On the other hand, the manufacturing method of the rainwater storage tank according to the present invention may include the step of manufacturing the composite renewable raw material 50. Then, a step of forming a block with pellets 50 made of the composite recycled raw material 50 may be included. Finally, a step of assembling the first block 11, the second block, the third block 13, and the finishing member 20 into a coupling member 30 for coupling and connecting to each other may be included.

9 is a process photograph showing a step of manufacturing the composite recycled raw material 50 in the manufacturing method of the rainwater storage tank using the composite recycled raw material 50 according to an embodiment of the present invention.

Referring to FIG. 9, in the step of manufacturing the composite recycled raw material 50 using the waste vinyl recycling system 100 containing foreign substances according to the present invention, first, the waste vinyl is 400 times using the first shredding unit 110. It includes the step of primary crushing with an area of cm 2 ~ 600 cm 2 . and sorting foreign substances from the primarily shredded waste vinyl using a specific gravity sorter 200. and secondarily crushing the waste vinyl that has passed through the specific gravity sorter 200 using the second crushing unit 130 to an area of 25 cm 2 to 100 cm 2 . and removing metals included in the waste vinyl through the second shredding unit 130 using the magnetic separator 300 . A step of additionally removing foreign substances from the waste vinyl that has passed through the magnetic sorter 300 by using the wind power sorter 400 due to the difference in specific gravity. and removing internal air bubbles or moisture from the waste vinyl that has passed through the wind power sorter 400 using a compressor. and extruding by using a first melt extruder 600 by first melting and mixing the waste vinyl from which foreign substances have been removed via the compressor at 150° C. to 200° C. By using the second melt extruder 700, the waste vinyl that has passed through the first melt extruder 600 is melted and mixed for the second time at 150 ° C to 250 ° C, and through a single screw, the width and length of 3 mm to 10 mm, respectively, and extruding through a diameter of a rear end discharge nozzle having a grid pattern having a neck gap. and cutting and cooling the waste vinyl passed through the second melt extruder 700 using the water cutting machine 800 and manufacturing final pellets 50. It includes the steps of transporting, separating and dewatering the pellets 50 via the water cutting machine 800 using the vibration vibrator 900.

A step of primarily shredding the waste vinyl into a predetermined size using the first shredding unit 110 may be included. Here, the waste vinyl recycling system includes a first crushing unit 110, a specific gravity separator 200, a second crushing unit 130, a magnetic separator 300, a wind separator 400, a compressor 500, and a first melt extruder. 600, a second melt extruder 700, a water cutting machine 800 and a vibration vibrator 900 may be included. The waste vinyl may be primarily crushed in an area of 400 cm 2 to 600 cm 2 .

A step of sorting the foreign matter from the primarily shredded waste vinyl using a specific gravity sorter 200 may be included. The specific gravity sorter 200 pulverizes and sorts composite waste vinyl such as composite films, and can sort waste vinyl largely based on the difference in specific gravity. Waste vinyl transported by a tong truck 10 is put into the specific gravity sorter 200. In addition, the waste vinyl sorted by the specific gravity sorter 10 is transported through a conveyor device 30 and the like, and may be put into the wind power sorter 400. Here, the specific gravity separator 100 includes a body frame, a crushing unit, and a foreign matter separation unit. The body frame may include an inlet into which composite waste vinyl is injected. The shredding unit is installed on the body frame and primarily crushes the waste vinyl input through the inlet. To this end, the crushing unit includes at least one crushing unit rotatably installed on the body frame, and a first driving source providing rotational force to the crushing unit. Here, the crushing unit may further include a first power transmission unit provided between the first driving source and the crushing unit to transmit power. As an example, the crushing unit includes first and second crushing units provided adjacent to each other, and two first driving sources and two first power transmission units are provided so as to transmit power to each of the first and second crushing units. was

In addition, the foreign matter separation unit transfers the waste vinyl that has fallen after being shredded by the shredding unit in a horizontal direction. On the other hand, the foreign matter separation unit separates and removes foreign substances having a heavier specific gravity than the waste vinyl, that is, foreign substances attached to the waste vinyl or transported together with the waste vinyl by dropping them in a vertical direction. To this end, the foreign matter separation unit includes a plurality of transport units and a second driving source providing rotational force to the transport units. Here, the foreign matter separation unit may further include a second power transmission unit provided between the second driving source and one transfer unit and between neighboring transfer units among the plurality of transfer units to transmit power. Here, the plurality of transfer units may be composed of a combination of a first transfer unit and a second transfer unit having different arrangement structures.

The crushing unit is rotatably installed on the first body frame, and is coupled to the first and second crushing shafts and the first and second crushing shafts, which are disposed to be spaced apart from each other by a predetermined distance, and are spaced apart from each other by a predetermined distance. A plurality of fixing members to be installed; It may include first and second crushing blade units having a plurality of crushing blades installed to be rotatable with respect to each of a plurality of fixing members. In the first and second crushing shafts, the distance between the center of the first crushing shaft and the center of the second crushing shaft is the maximum distance from the center of the first crushing shaft to the end of the crushing blade of the first crushing blade unit and the second crushing shaft. It may be arranged to be shorter than the sum of the maximum distances from the center of the crushing shaft to the end of the crushing blades of the second crushing blade unit. The crushing blades of the first crushing blade unit and the crushing blades of the second crushing blade unit may be arranged to cross each other in the axial direction of the first and second crushing shafts so as to be rotated without mutual interference. Each of the plurality of fixing members is spaced apart from each other and consists of a pair of hollow fixing plates inserted into and fixed to the first or second crushing shaft, and the crushing blade may be rotatably installed between the pair of fixing plates.

The transfer unit is installed on each of the plurality of transfer shafts and the plurality of transfer shafts disposed at a predetermined interval, and may include a plurality of skirts installed at a predetermined interval from each other. Here, the plurality of transfer shafts include a plurality of first transfer shafts in which two types of skirts having different sizes among the plurality of skirts are alternately installed, and a plurality of skirts in which two types of skirts having different sizes are alternately installed. It may include a second transfer shaft of. In the arrangement of the plurality of first and second transfer shafts, the first transfer shaft and the second transfer shaft are alternately disposed, and the skirt installed on the first transfer shaft and the skirt installed on the second transfer shaft are adjacent to each other. The first and second transfer shafts overlap each other in a radial direction, and the first and second transfer shafts may be spaced apart from each other in a longitudinal direction.

Accordingly, when the waste vinyl is transported through the conveying unit, the waste vinyl is transferred onto an adjacent conveying shaft through a plurality of continuously arranged conveying shafts, and is conveyed toward a waste vinyl wind power sorter described later. In addition, the foreign matter attached to the waste vinyl during the transfer process and the foreign matter transferred together with the waste vinyl have a higher specific gravity than the waste vinyl. Therefore, the foreign matter having a large specific gravity falls downward through between the plurality of skirts.

In addition, the waste vinyl gravity sorter according to the present invention crushes the input waste vinyl through a shredding unit, and then separates the pulverized waste vinyl from the waste vinyl and foreign matter through a foreign matter separation unit to obtain high-quality waste vinyl. There is an advantage.

Continuously, the present invention may include a step of secondarily crushing the waste vinyl that has passed through the specific gravity sorter 200 into a predetermined size using the second crushing unit 130 . In order to increase the efficiency of the subsequent sorting process and increase the difference in specific gravity between the waste vinyl and foreign matter, the specific gravity sorted waste vinyl may be crushed to an area of 25 cm 2 to 100 cm 2 . If, when crushing less than 25 cm 2 , the difference in specific gravity with the foreign matter is not large, so it may be scattered together with the foreign matter by the dust collector 490 installed on the upper part of the wind separator 400, which is a later stage. In addition, as the area of waste vinyl increases when shredding more than 100 cm2, the sorting and melting time in the subsequent process is delayed or the internal pressure increases due to internal tolerances, which causes the waste vinyl to burn or not melt at all, which causes a load in the subsequent process. It may cause a malfunction because of this. Therefore, when crushing with an area of 25 cm2 to 100 cm2, the separation efficiency of the wind power sorter 400, which is a later step, can be increased due to the difference in specific gravity between the foreign matter and the waste vinyl. In addition, when the weight of the waste vinyl that is hit when inputting into the magnetic separator 300, the wind separator 400, and the first and second melt extruders 600 and 700, respectively, which are the latter stages, is heavy or hard, the wind separator 400 ), it is possible to reduce the load transmitted to the wind power selector 400 and prevent excessive power consumption.

The method for manufacturing composite renewable raw materials using the waste vinyl recycling system containing foreign substances according to the present invention may include removing metals included in the foreign substances using the magnetic separator 300. At this time, the magnetic screening process may be screened using manpower, machines, and the like.

The method for manufacturing composite recycled raw materials using the waste vinyl recycling system containing foreign substances according to the present invention may further include the step of additionally removing foreign substances from the waste vinyl by using a wind separator 400 according to the difference in specific gravity between the foreign substances and the waste vinyl. can

The wind power sorter 400 may include a body frame 410, a wind power generation unit 430, a driving source 451 providing rotational force to the wind power generation unit 430, and a mesh type rotary separator 420. The body frame 410 may include an input inlet 411 for receiving the waste plastic shredded in the pretreatment process and an outlet 415 for discharging the waste plastic after air separation. The wind power generator 430 is rotatably installed on the body frame 410 to generate wind power. In addition, the wind power generator 430 may drop and move the waste vinyl from the input inlet 411 to the outlet 415 and separate and sort the foreign substances from the waste vinyl. A detailed description of the wind power generator 430 will be described later with reference to FIGS. 11 to 14(a) and 14(b). Here, the present invention is provided between the drive source 451 and the wind power generator 430 to further include a power transmission unit 455 for transmitting the rotational force provided by the drive source 451 so that the wind power generator 430 rotates. can

The mesh type rotating sorter 420 may be installed inside the body frame 410 and surround the wind power generator 430 from the outside. In addition, the mesh-type rotary separator 420 may be composed of an upper mesh-type rotary separator 421 and a lower mesh-type rotary separator 425. Each of the upper mesh-type rotary separator 421 and the lower mesh-type rotary separator 425 has a hollow semi-cylindrical structure, and a mesh penetrating the inside and outside is formed throughout the outer shape. The mesh network may have a pore size between millimeters (mm) and submicrometers (μm). Therefore, when the shredded waste vinyl is rotated by the wind power generation unit 430 in the mesh-type rotary sorter, it collides with the mesh-type rotary sorter 420, and the foreign matter remaining by the impact is separated and sorted from the waste vinyl It can be separated, separated, and dropped to the outside of the mesh-type rotary sorter. Subsequently, foreign substances passing through the mesh may be scattered and collected in the dust collector 490 .

FIG. 11 is a front view showing the wind turbine waste sorter during the process of FIG. 10 , FIG. 12 is a perspective view of the wind power generation unit of FIG. 11 , and FIG. 13 is a side view of FIG. 12 .

11 to 13, the wind power generator 430 includes a wind shaft 431 rotatably installed on the body frame 410 and a plurality of fixed holders installed on the wind shaft 431 ( 435) and a deflection wind power unit 440. Each of the plurality of fixed holder parts 435 is disposed spaced apart from each other at a predetermined interval on the wind shaft 431, and may support the plurality of wind deflection parts 437 to rotate.

14 (a) and 14 (b) are views showing a modified example of the wind deflection unit of FIG. 5 . Referring to FIGS. 14(a) and 14(b) , the plurality of wind deflection units 440 may be rotatably installed on each of the plurality of fixed holder units 435. Each of the plurality of deflection wind power units 440 generates wind power while being rotated in a state of rotation in a centrifugal direction by the rotational force of the wind shaft 431 . Therefore, by the rotation of the plurality of deflecting wind turbine units 440, the waste vinyl put into the mesh type rotary sorter 420 can move toward the outlet 415 while rotating. At this time, the plurality of wind deflection units 440 may be selectively filtered by falling at different positions according to the weight difference during collision. In addition, the plurality of deflection wind turbine units 440 are installed inclined between the fixed holder units 435 in the direction in which the waste vinyl is input, and may mainly play a role of hitting, cutting, and crushing the waste.

The deflection wind power unit 440 has a first wing unit 441 that causes the inputted plastic waste to fall in a rotating direction by first colliding with one side of the first wing unit 441 connected to one side of the first wing unit 441. A second wing portion 443 may be included. Here, the second wing 443 has a predetermined angle θ between the first wing 441 and 40 degrees to 80 degrees as shown in FIG. 14 (a) or 100 degrees to 100 degrees as shown in FIG. 14 (b). It can be positioned at 160 degrees. One side of the second wing 443 collides with the waste vinyl secondarily in the input direction (strike direction) to cause the foreign matter attached to the waste vinyl to escape and scatter or fall. When the temperature is less than 40 degrees, waste vinyl or foreign substances may be caught between the first wing 441 and the second wing 443, which may cause mechanical failure. When the angle exceeds 80 degrees, less than 100 degrees, or greater than 160 degrees, the direction of rotation of the first wing part 441 and the direction of rotation of one side of the second wing part 443 are almost the same, so the role of secondary collision with the waste vinyl is insufficient. The efficiency of sorting foreign matter from vinyl may be lowered. Therefore, when the angle between the first wing 441 and the second wing 443 is 40 degrees to 80 degrees or 100 degrees to 160 degrees, the number of collisions of the waste vinyl is increased to separate foreign substances from the waste vinyl. efficiency can be increased.

In addition, some of the plurality of deflection wind turbine units 440 form an angle between the first wing unit 441 and the second wing unit 443 of 40 degrees to 80 degrees, and the remaining wind deflection units 440 form the first wing unit 440. The angle between the wing part 441 and the second wing part 443 may be installed with 100 degrees to 160 degrees. The plurality of deflection wind turbine units 440 having different angles are positioned horizontally relative to the input direction, and then one deflector wind turbine unit 440 may be arranged in a zigzag pattern while being vertically positioned. Therefore, this arrangement can increase the sorting efficiency by increasing the number of collisions of waste vinyl.

At this time, a step of collecting foreign substances separated from the mesh type rotary sorter 425 and scattering by using the dust collector 490 disposed above the wind separator 400 may be further included. In detail, the first wing 441 primarily collides foreign substances attached to the waste vinyl, and the second wing 443 secondarily collides with the waste vinyl to remove remaining foreign substances and dry moisture. have. At this time, the foreign matter may be attached to the mesh type rotary sorter 425 or the fine foreign matter may be scattered after passing through the mesh and collected in the dust collector 490. The waste vinyl from which foreign substances are separated may be collected at the lower end of the outlet of the wind power sorter 400 . Such a dry type wind separator 400 can be cleaned by separating and shaking off only the mesh type rotary sorter 425 without a separate cleaning means.

Therefore, it is possible to omit the washing step in the wind power sorter 400 or in the subsequent process, and since waste vinyl can be sorted in a dry manner, wastewater and power consumption are not generated, thereby reducing manufacturing process costs such as wastewater treatment cost and power cost. It has the advantage of increasing economic efficiency. In addition, the waste vinyl wind power sorter 400 according to the present invention rotates a plurality of deflection wind power units 440 for the shredded waste vinyl and foreign substances moving together with the waste vinyl through the mesh-type rotary sorter 420 It is possible to obtain a high-quality composite recycled raw material (pellet 50) 50 by separating the.

The method for manufacturing a composite renewable raw material using the waste vinyl recycling system containing foreign substances according to the present invention may include removing air bubbles inside the waste vinyl using the compressor 500 . The selected waste vinyl may be compressed to completely remove internal air bubbles or moisture before being introduced into the first melting extruder 600, which is a later step. The compression step may play a role in preventing minor failures from occurring by reducing internal pressure or load that may occur due to internal bubbles or moisture inside the primary and secondary melt extruders (600, 700).

The method for manufacturing a composite recycled raw material using the waste vinyl recycling system containing foreign substances according to the present invention may further include melting and mixing the waste vinyl from which foreign substances are removed and extruding the waste vinyl using a melt extruder. In detail, using the first melting extruder 600, the waste vinyl from which foreign substances are removed may be first melted and mixed at 150 ° C to 200 ° C, and then extruded through a twin screw. Next, by using the second melting extruder 700, the waste vinyl from which foreign substances are removed is secondary melted and mixed at 150 ° C to 250 ° C, and passed through a screen with an eye gap of 5 mm to 50 mm through a single screw. It may include the step of extruding by doing.

After melting 75 to 90% in the first melting and mixing step, the remaining 10 to 25% of the waste vinyl can be completely melted by mixing with a single screw high rotation in the second melting extruder. Here, since the waste vinyl may not be melted below 150 ° C and the waste vinyl may be incinerated when the temperature exceeds 250 ° C, it is recommended to adjust the rotation speed of the first melt extruder and the rotation speed of the second melt extruder. have. Therefore, when it has a range of 150 ℃ ~ 250 ℃, 99.9% of the waste vinyl can be melted without being incinerated.

In addition, the diameter of the discharge nozzle at the rear end of the second melt extruder 700 that is finally extruded may have an eye gap of 3 mm to 10 mm. Preferably, the diameter of the nozzle may have an eye gap of 3 mm to 5 mm. Here, the neck spacing may have a grid pattern, but is not limited thereto, and a screen may be used to manufacture various pellets 50 desired by the user, such as a circular shape or a honeycomb. In addition, when the nozzle diameter is less than 3 mm or greater than 5 mm, if the size of the ejected pellets 50 is too small or large, there may be difficulties in producing various high value-added products, so when having a diameter in the range of 3 mm to 5 mm Properly sized pellets 50 may be produced. If the size of the pellets 50 is less than 3 mm, the diameter of the nozzle on the second melt extruder 700 equipment must be changed and there may be difficulty in cutting in the water cutter 800 of the subsequent process. In addition, when the size of the pellets 50 exceeds 5 mm, there is a limit in that the processing time according to the melting process may be delayed during molding of the final product. Therefore, in the case of pellets 50 in the range of 3 mm to 5 mm, it can be discharged without changing the equipment of the second melt extruder 700, and it is cut with the water cutting machine 800 in the subsequent process to produce a suitable composite recycled raw material required for the production of final molded products. (50) can be

Finally, in the method for manufacturing composite recycled raw materials using the waste vinyl recycling system containing foreign substances according to the present invention, the extruded waste vinyl is water-cut and cooled to produce pellets 50 (composite recycled raw materials). steps may be included. In the pelleting step (50), the plastic chips are melted and solid and metal foreign substances are finally removed, and then plastic pellets 50 having a size of 3 mm to 5 mm in the form of granules may be generated.

In the water cutting machine 800, a water box having a cooling water supply pipe and a drain pipe for discharging the cut pellets 50 molded product together with the cooling water is fixedly installed at the rear of the extrusion die. The cutting blade coupled to the front of the rotating body rotating at high speed rotates in surface contact with the rear surface of the compression die, and the waste vinyl melt extruded through a plurality of nozzle holes can be cut in the form of granules in the water box.

Specifically, the extruded melt is discharged while cooling or water-cooled, and the cooled melt is in a gel or pellet 50 state. At this time, it can be cooled using the water cutting machine 800. The water cutting machine has a water box with cooling water supply pipes up and down at the rear of the extrusion die and a drain pipe for discharging the cut pellets (50) moldings together with the cooling water. The cutting blade coupled to the front of the rotating body rotates in surface contact with the rear surface of the compression die to cut the resin melt extruded through a plurality of nozzle holes into granules in the water box underwater.

The method for manufacturing composite recycled raw materials using the waste vinyl recycling system containing foreign substances according to the present invention may include the steps of transporting, separating and dehydrating the pellets 50 using a vibrator.

Hereinafter, the present invention will be described in more detail based on the following Examples and Comparative Examples.

However, the following examples are only for exemplifying the present invention, and the present invention is not limited by the following examples, and can be substituted and replaced by other equivalent examples without departing from the technical spirit of the present invention. It will be clear to those skilled in the art to which the present invention belongs.

<Example 1>

Waste vinyl containing foreign substances was produced using a recycling system to produce composite recycled raw materials by the following manufacturing method.

The waste vinyl was firstly shredded in an area of 400 cm 2 to 600 cm 2 using the first shredding unit 110 . The primary crushed waste vinyl was sorted using a specific gravity sorter (200). The weight-selected waste vinyl was secondarily shredded using the second shredding unit 130 to an area of 25 cm2 to 100 cm2. Then, by using the magnetic separator 300, metals included in the foreign matter were removed. Subsequently, foreign substances were additionally removed from the waste vinyl by using a wind power sorter 400 due to a difference in specific gravity. Subsequently, air bubbles or moisture inside the waste vinyl were removed using the compressor 500. Using the first melting extruder 600, the waste vinyl from which foreign substances were removed was first melted and mixed at 150 ° C to 200 ° C, and then extruded through a twin screw. In addition, by using the second melting extruder 700, the waste vinyl from which foreign substances are removed is secondary melted and mixed at 150 ° C to 250 ° C, and extruded by passing through a screen with an eye gap of 5 mm to 10 mm through a single screw. did Then, the extruded waste vinyl was cut and cooled with a water cutting machine (800) to prepare pellets (50). Finally, the sample (pellet 50) was transported, separated, and dehydrated using a vibrating vibrator 900.

<Comparative Example 1>

Foreign substances were removed from the waste vinyl by specific gravity and magnetic separation. Then, it was washed using a washing device and foreign substances were separated. Dehydration and water were removed by passing through a dehydration tank. The waste material from which foreign substances were removed was shredded to 1 to 10 cm. The pulverized waste vinyl was firstly melted at about 250°C to 300°C, and secondarily melted at 150°C to 200°C. A specimen was prepared by supplying the melt to a cooling molding machine while extruding and discharging the melt.

evaluation items unit Example 1 Comparative Example 1 The tensile strength MPa 18 13 flexural strength MPa 18 15 Ash rate % 25.5 45 chlorine concentration % 0.38 1.2 average particle size mm 5 or less (99%) 5 or less (70%)

Here, the tensile strength, bending strength, ash content and chlorine concentration are the results of testing and analysis according to the official test method at the Korea Polymer Testing Institute, and the particle size at the Korea Construction and Living Environment Testing Institute.

15 is a TGA analysis result and an external photograph of a composite recycled raw material according to an embodiment of the present invention, and FIG. 16 is a TGA analysis result and an external photograph of a composite recycled raw material according to a comparative example of the present invention. Comparing FIG. 15 and FIG. 16, it was found that the example was a composite recycled raw material (pellet) having a uniform shape, whereas the comparative example had a non-uniform shape. In addition, as a result of TGA (Thermogravimetric Analysis) thermal analysis of the examples, the comparative example had an impurity content of 16%, but the example had an impurity content of 2%, which is close to that of a single recycled raw material, so that high-quality composite recycled raw materials (pellet ) was found to be

Preferably, high-quality composite recycled raw materials (pellets) can satisfy tensile strength and flexural strength of 18 MPa or more, ash content of 2.55% or less, impurity of 2% or less, chlorine concentration of 0.38% or less, and average particle size of 99% or less of 5 mm or less. have.

On the other hand, the step of forming a block in the manufacturing method of the rainwater storage tank according to the present invention is to form a block having a structure in which the upper and lower surfaces of the pellets 50 are open and two neighboring side surfaces are closed, and at least two coupling members are provided on the side surface. A step of molding the first block 11 by putting it in a mold may be included. Then, the pellet 50 may include a step of forming a second block by putting the pellet 50 into a block molding mold having a structure in which upper and lower surfaces are open and one side surface is closed and at least two coupling members are provided on the side surface. In addition, a step of forming a third block by putting the pellets 50 into a block molding mold having upper and lower surfaces open and an entire side surface open and at least two coupling members provided on the side surface may be included. Next, molding the upper finishing member by inserting the pellets 50 into a finishing member molding mold consisting of an upper sealing part sealing the open top of the block and an upper protrusion fittingly coupled to the upper coupling member of the block at the corner. can include Next, a closing member molding frame composed of a lower sealing part 22a for sealing the open lower part of the block with pellets 50 and a lower groove part 22b for custom-fitting with the lower coupling member 30 of the block at the corner. It may include the step of molding the lower finishing member 22 by putting it in. Here, in the block molding frame, the upper projection 21b and the lower groove 22b of the upper finishing member 21 and the lower finishing member 22 are fitted and fastened to each other at one end of the upper and lower corners, and the layer assembly grooves allow stacking assembly. (31a) or layer assembly protrusions (31b) may be formed.

In addition, in the manufacturing method of the rainwater storage tank according to the present invention, the first block 11, the second block 12, the third block 13, and the finishing member 20 are assembled with a coupling member 30 for interconnection. The step of doing is, first, the step of assembling the lower finishing member 22 to each of the first block 11, the second block 12 and the third block 13 and placing it on the bottom of the rainwater storage space 1 can do. It is not limited thereto, and may include first disposing the lower finishing member 22 at a lower position to be stacked and disposed in the rainwater storage space.

Next, a step of arranging a plurality of first blocks 11 at the edges of the storage space 1 may be included. It may include arranging a plurality of second blocks 12 to form an inner space by connecting and assembling the plurality of first blocks 11 and the coupling member 30 to surround the edge of the storage space 1. It may include disposing a plurality of third blocks 13 by connecting and assembling between the second block 12 and the coupling member 30 to be located in the inner space.

It may include stacking and assembling each of the first block 11, the second block 12, and the third block 13 between the coupling members 30 to make the rainwater storage tank block body 10.

A step of final finishing by assembling the finishing member 20 between the coupling members 30 so that the upper surface of the block body 10 of the rainwater storage tank is sealed may be included. At this time, in order to reinforce the reinforcement of the rainwater storage tank block body 10, the final finishing step of melting and welding the pellets 50 between the combined blocks 10 and between the block 10 and the finishing member 20 can include more.

The above embodiments are only exemplary, and various modifications and other equivalent embodiments may be made therefrom by those skilled in the art. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the invention described in the claims.

1: storage space 10: block (rainwater storage tank block body)
11: first block 12: second block
13: 3rd block 20: finishing member
21: upper finishing member 21a: upper sealing part
21b: upper projection 22: lower closing member
22a: lower sealing part 22b: lower groove part
30: coupling member 31a: layer assembly groove
31b: layer assembly protrusion 33: side assembly part
33a: water hook 35: side assembly arm
35a: arm engaging part 40: reinforcing member
40a: neck part 50: composite recycled raw material (pellet)
80: forklift 90: conveyor device
100: waste vinyl recycling system
110: first crushing unit 130: second crushing unit
200: specific gravity separator 300: magnetic separator
400: wind selector 410: body frame
411: input inlet 415: discharge
420: mesh-type rotary sorter 421: upper mesh-type rotary sorter
425: lower mesh type rotary sorter 430: wind power generator
431: wind shaft 435: fixed holder
440: deflection wind power unit 441: first wing unit
443: second wing 451: driving source
455: power transmission unit 490: dust collector
500: compressor 600: first melt extruder
700: second melting extruder 800: water cutting machine
900: vibration vibrator

Claims (9)

In the rainwater storage tank,
A plurality of blocks made of composite recycled raw materials, which are located in the storage space and consist of a hexahedron structure with two adjacent sides closed, one side closed and the entire side open;
A plurality of finishing members made of composite recycled raw materials, which are installed in the upper and lower parts of the block in a rectangular plate shape; and
It is formed on the block and the closure member, and includes a coupling member for coupling and connecting to each other so as to be assembled between the plurality of blocks and between the block and the closure member,
The block is
a plurality of first blocks disposed at the edges of the storage space and having upper and lower surfaces open and two adjacent side surfaces closed;
a plurality of second blocks coupled to the first block and disposed at the edge of the storage space, having upper and lower surfaces open and one side closed; and
The first block and the second block are connected to each other to form an inner space surrounding the edge of the storage space and disposed in the inner space, and a plurality of third blocks having a structure in which upper and lower surfaces are open and entire side surfaces are open. Rainwater retention tank using a composite renewable raw material, characterized in that it comprises a block. According to claim 1,
The finishing member is
a plurality of upper closing members comprising an upper sealing part protruding from the center to seal the open upper part of the block and an upper protrusion part protruding from at least one corner so as to be fitted with the upper surface of the block; and
Characterized in that it comprises a plurality of lower closing members consisting of a lower sealing part protruding from the center to seal the open lower part of the block and a lower groove part having a groove formed at at least one corner so as to be fitted with the lower surface of the block. Rainwater retention tank using composite recycled raw materials. According to claim 2,
The coupling member is
It is located at one end of the edge of the upper or lower surface of the block, and is fitted with the upper projection and the lower groove of the finishing member and includes a layer assembly groove or layer assembly projection capable of stacking assembly. Rainwater retention tank using recycled raw materials. According to claim 1,
The coupling member is
A side assembly part protruding from the side of the block; and
It is located on the side of the block and the side assembly arm of the other block is inserted, and the left and right sides between the blocks are fitted into each other by male and female coupling. According to claim 4,
The side assembly arm part,
Including an arm hanging portion in which the receiving space becomes narrower toward the outside,
The side assembly part,
It includes a male engaging portion that is forcibly fitted while sliding into the female engaging portion and is formed to expand toward the outside,
A rainwater storage tank using composite recycled raw materials, characterized in that the female and male engaging portions are positioned symmetrically crosswise with respect to the vertical axis and are interlocked with each other while sliding, and the blocks are not separated from each other along the horizontal axis. According to claim 1,
The coupling member is
An accommodating space is formed on the side of the block, and a side assembly arm part is formed with an arm engaging part in which the accommodating space becomes narrower toward the outside; and
It is inserted between at least two of the side assembly arm parts, and the neck part is formed in the center in the longitudinal direction so as to be intermittently fitted while sliding up and down and fitted to the arm engaging part, and reinforcing the coupling between the blocks. Including a reinforcing member Rainwater retention tank using a composite renewable raw material, characterized in that. In the manufacturing method of the rainwater storage tank according to any one of claims 1 to 6,
Preparing a composite renewable raw material;
Forming a block with pellets made of the composite recycling raw material;
The construction method of the rainwater storage tank comprising the step of assembling the first block, the second block, the third block and the finishing member into a coupling member for mutually coupling and connecting. According to claim 7,
The step of preparing the composite renewable raw material,
first crushing the waste vinyl to an area of 400 cm 2 to 600 cm 2 using a first shredding unit;
sorting out foreign substances from the primarily shredded waste vinyl using a specific gravity sorter;
secondarily crushing the waste vinyl that has passed through the specific gravity sorter into an area of 25 cm2 to 100 cm2 using a second crushing unit;
removing metals included in the waste vinyl that passed through the second shredding unit using a magnetic separator;
additionally removing foreign substances from the waste vinyl that has passed through the magnetic sorter using a wind-powered sorter according to a difference in specific gravity;
removing internal air bubbles or moisture from the waste vinyl that has passed through the wind power sorter using a compressor;
using a first melting extruder to first melt and mix the waste vinyl from which foreign substances have been removed through the compressor at 150° C. to 200° C. and extruding;
By using the second melt extruder, the waste vinyl passed through the first melt extruder is melted and mixed for the second time at 150 ° C to 250 ° C, and then through a single screw, a grid pattern having a neck gap of 3 mm to 10 mm in width and length, respectively, is used. extruding through the diameter of the rear end discharge nozzle formed in the form;
cutting and cooling the waste vinyl passed through the second melt extruder using a water cutting machine and producing final pellets;
Method for producing a rainwater storage tank using a composite renewable raw material comprising the steps of transporting, separating and dehydrating the pellets via the water cutting machine using a vibrating vibrator. According to claim 8,
The pellet is
Tensile strength and flexural strength are 18 MPa or more, ash content is 2.55% or less, impurity is 2% or less, chlorine concentration is 0.38% or less, and 99% of the average particle size is 5 mm or less.

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