KR101604397B1 - Fuel-saving device for manufacturing a filling wall with a sewer pipe waste plastics - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a fuel-saving filling wall sewer pipe by using waste plastics and, more specifically, to an apparatus for manufacturing a fuel-saving filling wall sewer pipe by using waste plastics, for enabling the appearance to be beautiful by reinforcing the strength, and providing a space for reducing a raw material between profiles. The apparatus comprises: a crusher (100) for crushing the collected waste plastics; a foreign substance separator (110) for removing foreign substances of metals or soil; a molten extruder (120) for melting the waste plastics and storing the same, or extruding a filling material; a filling material coating extruder (130) for molding a profile coated with the filling material; a first cooler (140) for immersing in a coolant or spraying the coolant in the outer diameter so as to be cooled; a winding device (150) formed with a joint member; a second cooler (170) for supplying the coolant to the inner diameter and the outer diameter of the filling wall sewer pipe (10); and a cutting device (180) for cutting the filling wall sewer pipe (10).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a manufacturing method of a raw material-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a raw material-saving type filler wall sewer pipe using waste plastics, and more particularly to a filler material for reinforcing strength by using waste plastics made of plastic such as waste plastic, (HDPE) to form a single profile, reinforcing the strength of the profile to make it look more beautiful, and changing the shape of the profile coating the filler material provides a space for saving raw materials between profiles And more particularly, to a manufacturing apparatus for a raw material-saving type filler wall sewage pipe using waste plastics.

A conventional recycling method for waste plastic is a method of using waste plastic itself as a filler or additive in the blending of plastic, that is, by using a small amount of waste plastic as a filler or additive, As one-dimensional reuse method using a certain amount of waste plastics when used as a resin, the method used as a filler and an additive is limited in the kind of the resin serving as the resin, In addition, there is a problem that the usable waste plastics also have compatibility with the new resin, and the use range is limited and limited.

In addition, when used as an additive, it is generally used in a small amount and its use is also limited. In the case of using the same kind of resin, the method of adding waste plastic is mainly aimed at lowering the price of the product. There is a disadvantage in that it can not be used in the resin used, and since it is used only in a range where the mechanical properties of the new resin are not deteriorated, the amount of the used resin is also small and there is a limitation in use.

Another method is to melt and knead waste plastics without selecting waste plastics. However, there are cases where waste from incinerators is mixed with materials burned and molded into pellets. This is because plastics are mixed with various waste resins, It is doubtful that its usefulness is inevitable. Even if it is used, there is a disadvantage that the mechanical properties of the recycled resin, which deteriorates the bonding strength of the resin, are not more than usable, Respectively.

In addition, there is a case that the method used to reduce this phenomenon is to mix polyethylene wax with waste plastic and incinerator ashes, but there is no evidence that wax chemically links waste plastics with each other, The wax of the present invention has a disadvantage that the mechanical properties are lowered and the price is increased.

In the case of molding a mixture of various waste plastics, it is advantageous that the filler 11 is not exposed due to the profile 12 by coating the profile 12 with the outer diameter of the filler 11 made of waste plastic as well as mechanical properties However, the bonding force between the filler and the profile is weakened, and the mechanical properties are deteriorated.

In the case of the filler wall sewer pipe which is formed by coating the filler material 11 with the profile 12, it is mainly used for the lower water inlet, but it is divided into the dirty water and the excellent water even in the lower water inlet. Can not be accurately grasped.

On the other hand, in the invention patent No. 1335547 (registered on Mar. 11, 2013) filed by the present applicant, the mixture of polypropylene (PP) and polystyrene (PS) is a mixture of polystyrene (PS) and polypropylene 40 to 60 parts by weight of the polyethylene (PE) are added to and dissolved in the mixture of the polypropylene (PP) and the polystyrene (PS) To prepare a filler.

However, since the polyethylene is melted and supplied to the connecting side of the profile 12 wrapping the waste plastic at a constant thickness and molded through the connecting member having a predetermined width, consumption of the raw material corresponds to the profile and the connecting member, And the cost and the weight of the pipe become heavier than necessary, which makes transportation and maintenance inconvenient.

In order to form a reduced space in which the joint members are not supplied between the profiles 12, a very complicated structure is provided, and it is impossible to form the actual reduced space, so that the molten joint seeps into the reduced space, There is a problem that it is difficult to reduce the raw material because the reduction space is not formed and the bonding force between the joint member and the profile is reduced and can be easily separated.

Document 1. Utility Model Registration No. 0416519 (Registered on May 10, 2006) Document 2. Patent Registration No. 0998599 (registered on Nov. 30, 2010) Literature 3. Patent Registration No. 0352997 (registered on Mar. 09, 2002) Document 4. Patent Publication No. 1999-0064616 (published on Aug. 05, 1999) Literature 5. Inventions Patent No. 1335547 (Registered on November 11, 2013)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method of forming a profile filling material by recycling various waste plastics including waste vinyl, and forming a profile for wrapping the outside of the filling material with plastic (HDPE) And to provide a filling wall sewage pipe which is molded integrally through a joint member.

Another object of the present invention is to reduce the amount of raw material consumption by reducing the amount of the space by providing a space in which the filler coated with the profile is divided and supplied to the inside of the profile for coating the filler .

The present invention relates to a pulverizer for selectively collecting collected waste plastics by type and pulverizing the pulp to a size of 1 to 10 cm; A foreign matter separator connected to the crusher and removing foreign substances such as metal foreign substances or soil during the supply of pulverized waste plastic; A molten extruder for melting waste plastic at a temperature of 170 to 310 캜 for supplying and storing pellets or extruding a filler along an oblique outer surface; A filler coating extruder for melting a polyethylene (PE) with an outer diameter of the filler during the feeding of the filler supplied from the melt extruder and forming a profile coated with a thickness of 2 to 40 mm and coated with the filler at regular intervals; A primary cooler for impregnating the cooling water in the process of supplying the profile or cooling the cooling water by spraying the cooling water on the outer diameter; A spirally wound device for spirally supplying a cooled profile in the primary cooler and melting a polyethylene (PE) in a joint member extruder between profiles to form a joining member so as to have an interval (width) of 3 to 30 mm; A secondary cooler for supplying cooling water to an inner diameter and an outer diameter of a filled-wall sewage pipe formed in a cylindrical shape in the winding device to be cooled; And a cutting device for cutting the filled-wall sewage pipe cooled by the secondary cooler to a length of 6 to 10 m, the apparatus comprising:

The filler coating extruder is extruded so as to form two fillers at regular intervals so as to form irregularities along the outer diameter of the filler coating extruder. The filler coating extruder forms a reduction space at the center between the two filler materials, .

The present invention provides a thermoplastic resin composition using waste plastics and industrial wastes, wherein the thermoplastic resin composition is extruded as a filler material so as to be spirally wound so as to improve the mechanical properties of the formed filler wall sewer pipe and to be various as a sewer pipe , It is easy to treat and recycle waste plastics and to prevent environmental pollution.

The present invention can be recycled by forming a filler using pellets prepared by collecting various kinds of waste plastics including waste vinyl, followed by classification, pulverization, separation and melt mixing. The outside of the filler is wrapped with plastic (HDPE) There is an effect that a sewer pipe having a large strength can be provided at a low cost because the plastic and the filler are integrally formed.

The present invention provides a reduction space between the fillers coated so as to divide the inside of the profile so as to reduce the amount of material for molding the profile so as to reduce the amount of raw material, .

Figure 1 shows a preferred embodiment of the present invention,
2 is a cross-sectional view showing a molding state of the manufacturing process of the present invention
3 is a perspective view showing a state in which the filler and the profile of the present invention are extruded;
4 is a front view of the filler coating extruder of the present invention
5 is a plan view showing an installation state of the manufacturing apparatus of the present invention
6 is a block diagram illustrating a preferred embodiment of the present invention.
7 is a cross-sectional view showing another embodiment of the manufacturing process for the filling material and the profile of the present invention
8 is a front view of another embodiment of the filler coating extruder of the present invention

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a preferred embodiment of the present invention, FIG. 2 is a sectional view showing a molding state of the manufacturing process of the present invention, and FIG. 3 is a perspective view showing a state where the filling material and the profile of the present invention are extruded.

(PE), polystyrene (PS), polypropylene (PP), and polyvinyl chloride (PVC) are charged into the melting furnace or extruder and melted and then supplied to the pellets or fillers 20 and 20a, 40 to 60 parts by weight of polystyrene (PS) is added thereto, and the mixture is simultaneously melted and supplied.

A mixture composed of 40 to 60 parts by weight of polyethylene (PE) and 40 to 60 parts by weight of polypropylene (PP) is put in place of the polystyrene (PS), or a mixture of polystyrene (PS) and polypropylene (PP) And a mixture of polyethylene (PE) and polypropylene (PP), a mixture of polystyrene (PS) and polypropylene (PP) in a weight ratio of 1: 2 to 3: 4, Polystyrene having a high melting temperature is firstly added and melted, then polypropylene is added to dissolve and mix at the same time. Polyethylene is added to the mixture to dissolve the mixture, and the mixture is pelletized and stored or extruded as it is. Are supplied to the respective filling materials 20 and 20a in which the concave and convex portions 21 are formed.

"형상을 갖도록 공급하는 것이며, 충진재(20, 20a)가 공급되는 과정에서 1차 냉각한 후 상기 충진재(20, 20a)의 외경으로 폴리에틸렌(PE) 신재를 압출기에서 공급하여 소정의 두께로 코팅하여 프로파일(12)을 "

"형으로 성형하는 것이다.The fillers 20 and 20a are formed by extrusion so as to have a shape in which various irregularities are formed in a circle, a square, and an outer diameter,

(PE) fresh material is supplied from an extruder to the outer diameter of the filler 20, 20a after the first cooling in the process of supplying the filler 20, 20a and is coated to a predetermined thickness The profile 12 is "

"It is molded into a mold.

The profile 30 for coating the outer diameter of the filler materials 20 and 20a is supplied with the fillers 20 and 20a having a concavo-convex shape at both sides at regular intervals, and a quadrangular shape is formed between the fillers 20 and 20a The filler 20, 20a and the profile 30 are integrally formed by extruding the reduction space 31 having any one of the shape,

The profile 30 is supplied with a joint member 40 between the profiles 30 in the course of spiral feeding to form a cylindrical fill-wall sewage pipe 10.

Since the profile 30 is extruded and molded between the fillers 20 and 20a at regular intervals, the polyethylene 31 is not supplied to the reduced space 31, The raw material can be saved by an area.

FIG. 4 is a front view of the filler coating extruder of the present invention, and FIG. 5 is a plan view showing an installation state of the manufacturing apparatus of the present invention.

A pulverizer (100) for selectively collecting the collected waste plastics according to their types and pulverizing the pulp to a size of 1 to 10 cm;

A foreign material separator 110 connected to the crusher 100 and removing foreign substances such as metallic foreign substances or soil is connected during the supply of the pulverized waste plastic.

The waste plastics supplied from the foreign material separator 110 are melted at a temperature of 170 to 310 DEG C and supplied as pellets or stored at a predetermined interval so as to form irregularities 21 along the slopes, (20, 20a);

During the transfer of the filler materials 20 and 20a supplied from the melt extruder 120, polyethylene (PE) is melted with the outer diameter of the filler materials 20 and 20a to be coated with a thickness of 2 to 40 mm, A filler coating extruder 130 for forming a profile 30 so as to form a reduced space 31 in a rectangular or rectangular shape between the fillers 20 and 20a in a process of coating the filler 20a at predetermined intervals, )Wow;

A primary cooler 140 for impregnating the cooling water in the process of supplying the profile 30 or cooling the cooling water by spraying the cooling water on the outside diameter;

The cooled profile 30 is spirally fed from the primary cooler 140 and polyethylene 17 is melted in the joint member extruder 160 between the profiles 30 so that an interval of 3 to 30 mm A wine-making device 150 in which a coupling member 40 is formed;

A secondary cooler 170 for supplying cooling water to the inside diameter and the outside diameter of the filling wall sewer pipe 10 formed in the cylindrical winding device 150 so that the cooling water is cooled;

And a cutting device 180 for cutting the filled wall sewage pipe 10 cooled by the secondary cooler 170 to a length of 6 to 10 m.

The filler coating extruder 130 has filler material extrusion holes 132 and 133 through which the fillers 20 and 20a are extruded at both sides of the filler material coating extruder 130, The core 134 is formed to form the reduction space 31 for reducing the raw material and the extrusion hole 131 for coating the fillers 20 and 20a with a predetermined thickness.

Fig. 6 is a block diagram showing a preferred embodiment of the present invention. Fig. 6 shows a waste plastics collecting step (S1) for collecting waste plastics; A pulverizing step (S2) of pulverizing the collected waste plastic to a predetermined size; A foreign matter separating step (S3) for separating and removing foreign matters such as soil and bark from the crushed waste plastic; The waste plastic from which the foreign matter has been separated is supplied to a melting furnace or an extruder and melted at a predetermined temperature,

(S4) of supplying the filler material to the pellets or the extrudate for use in the melt-extruding step (20, 20a); After the pellets are stored, the pellets are supplied again to the extruder and melted and extruded and supplied to the fillers 20 and 20a to extrude and feed polyethylene (PE) to coat the outer diameters of the fillers 20 and 20a. A filler material coating step (S5) of forming a profile (30) in which a reduction space (31) is formed; A primary cooling step (S6) for cooling the profile (30) so that the molding state can be stably maintained; The cooled profile 30 is spirally fed and wound to be formed into a circular shape, and the polyethylene (PE) is extruded and supplied between the profiles 30 to reduce any one of a square shape and a long shape A filling wall sewer forming step (S7) for forming a filling wall sewer pipe (10) having a space (31); A secondary cooling step (S8) in which cooling water is supplied to the inner and outer diameters of the formed filled-wall sewage pipe (10) and cooled; And a cutting step (S9) of cutting the filled wall sewage pipe (10) to be molded and supplied to a length of 6 to 10 m.

"형으로 공급하는 것이 가능하며, 상기 충진재(20, 20a)를 일정한 두께로 코팅하여 성형하는 프로파일(30)은 "

"형으로 공급하는 것이 가능하다.The fillers 20 and 20a are formed in a concavo-convex shape along the outer surface of four sides,

Quot ;, and the profile 30, which is formed by coating the fillers 20 and 20a to a predetermined thickness,

"It is possible to supply in the form of.

FIG. 7 is a cross-sectional view showing another embodiment of the manufacturing process of the filling material and the profile of the present invention, and FIG. 8 is a front view of another embodiment of the filling material coating extruder of the present invention.

(20, 20a) having a concavo-convex outer surface at a predetermined distance from the upper side and the lower side, and coating the entire surface of the filler (20, 20a); And a profile 30 for forming a reducing space 31 at the center between the fillers 20 and 20a is integrally extruded.

In the course of supplying the profile 30, the joint member 40 is supplied between the profiles 30 to form the filled wall sewer pipe 10.

The filler coating extruder 130 for molding the filler materials 20 and 20a and the profile 30 is formed with filler material extrusion holes 132 and 133 formed by extrusion molding of the fillers 20 and 20a at upper and lower sides, And a center core 134 is formed at the center between the filler material extrusion holes 132 and 133 to form a reduction space 31 for reducing the raw material and an extruder for coating the filler materials 20 and 20a with a predetermined thickness A hole 131 is formed.

The present invention having such a structure will be described in detail through a plan view of the molding apparatus shown in Fig. 5 and a block diagram shown in Fig.

First Step: Waste Plastic Collection Step (S1)

Polyethylene (PE) resin, polypropylene (PP) resin, polystyrene (PS) and polyvinyl chloride (PVC) are collected and stored by a usual collection method.

Second Step: Grinding Step (S2)

The waste plastics collected in the first process are classified according to the materials and are pulverized in the pulverizer 100. The pulverized plastics resin is divided into a thermoplastic resin softened by heat and a curable resin cured by heat. Polyethylene (PE) resin, polypropylene (PP) resin and polystyrene (PS) resin are used as general plastic, and most of them are used as composite plastic.

Polyethylene resin is a film product. It is injection molded product such as packing bag and agricultural film. As a product of industrial products, trays, plates, miscellaneous goods such as milk bottle, bleach container, detergent container, large drum, Plastics are also as described above, and agricultural films, which are generally well separated, are readily distinguishable and easy to supply, such as with soil.

Polypropylene (PP) products are very similar to polyethylene (PE) because of packing film, tableware, beer bottle, etc. Transportation harvest container, packing strap, saddle, fishing nets, rope etc. but many products have excellent transparency and surface gloss. There is an unusual smell when riding.

The polyethylene (PE) and the polypropylene (PP) can be mixed with each other.

Polystyrene (PS) is a foamed polystyrene blended with injection molding packaging of household appliances such as kitchenware, toys, TV, refrigerator and propane and butane. It is widely used as insulation material or building material for sound absorbing material. Automobile scrap is mainly used as low foamed polystyrene It is easy to distinguish and supply.

Polyvinyl chloride (PVC) is widely used as a plate, valve, and piping material.

The collected waste plastics are classified according to their materials and pulverized to a size of 1 to 10 cm in a conventional pulverizer.

Third step: foreign matter separation step (S3)

The pulverized waste plastic in the pulverizer 100 is removed from the foreign material separator 110 by removing the foreign materials such as metal and soil and if necessary, it is removed through a washing operation. .

Fifth step: Filler-extruding step (S4)

The waste plastic from which the foreign substance is separated is charged into the melting furnace or the melt extruder 120 by any one of polyethylene (PE), polystyrene (PS), polypropylene (PP) and polyvinyl chloride (PVC) And then extruded as it is to form the fillers 20 and 20a.

40 to 60 parts by weight of polyethylene (PE) is added to the above-mentioned melting furnace or extruder 120 to dissolve and then 40 to 60 parts by weight of polystyrene (PS) is added thereto.

A mixture composed of 40 to 60 parts by weight of polyethylene (PE) and 40 to 60 parts by weight of polypropylene (PP) is put in place of the polystyrene (PS), or a mixture of polystyrene (PS) and polypropylene (PP) And a mixture of polyethylene (PE) and polypropylene (PP), a mixture of polystyrene (PS) and polypropylene (PP) in a weight ratio of 1: 2 to 3: 4, Polystyrene (PS) having a high melting temperature is first charged and melted, and then polypropylene (PP) is added to melt and mix. Polyethylene (PE) is added to the mixture and melted.

The step of melting and extruding the filler material may be carried out in such a manner that the polystyrene (PS) resin is melted at 270 to 310 ° C, the polypropylene (PP) resin melts at 220 to 260 ° C, the polyethylene (PE) resin melts at 170 to 210 ° C, It is preferable to produce the homogeneous pellets while reducing the time for dissolving and mixing by adding and dissolving them in the order of the substance to be dissolved at a low temperature.

(PS), it is possible to improve the tensile strength and the fluidity of the resin, and to provide a function of light stability and chemical resistance so that injection molding can be performed beyond the limit of recycling with conventional low-grade plastic, So that the functionality is complemented as compared with a product using a recycled raw material made of a single material.

In addition, when polypropylene (PP) is mixed, the tensile strength is increased, which is excellent in rigidity and impact resistance, and the bending fatigue strength is excellent, so that the moldability can be expected to be improved.

In the present melting step, when a mixture of polystyrene (PS) and polypropylene (PP) are mixed at a weight ratio of 1: 2 to 3: 4, the advantages such as tensile strength, impact resistance, chemical resistance and foam molding can be achieved.

In this case, a die for extruding quadrangular fillers 20 and 20a is provided at the tip of the melt extruder 120 and extruded and supplied immediately. Alternatively, after the pellet die is installed, the melt of each material is extruded and made into pellets It is possible.

Fifth step: filler coating step (S5)

In the course of extrusion molding of the fillers 20 and 20a, a polyethylene (HDPE) resin is supplied to supply a molten resin to the outer diameter of the fillers 20 and 20a to form a profile 30 having a thickness of 2 to 40 mm .

The reduced space 31 is formed in a rectangular shape or a long rectangular shape in the middle between the fillers 20 and 20a while the profile 30 is formed.

Step 6: Primary cooling step (S6)

The profiles 30 are coated with the outer diameters of the fillers 20 and 20a so that the profile 30 can be stably maintained in the extruded shape by precipitating the coolant in the process of molding the reduced space 31 at the center.

Step 7: Filling wall sewage pipe forming step (S7)

In the process of supplying the profile 30 in a spiral manner to the winding device 150, the melted resin is supplied to form a jointing member 40 in the jointing member extruder 160 with polyethylene (HDPE) resin so as to have a thickness of 3 to 30 mm A cylindrical fill-wall sewer pipe 10 is formed.

Step 8: Second cooling step (S8)

The cooling water is supplied to the inner and outer diameters in the process of supplying the cylindrical wall-shaped sewage pipe 10 to the secondary cooler 170 so as to be cooled.

Ninth step: cutting step (S9)

In the process of transferring the filled wall sewage pipe 10 cooled by the secondary cooler 170 to the cutting device 180, it is cut to a length of 6 to 10 m.

The same as each step of Example 1;

In the filling step (S4) of melting the filler material, the fillers (20, 20a) are formed at regular intervals from the upper side and the lower side,

The filler material 20, 20a is coated in the filler material coating step S5 and the reduction space 31 is formed at the center portion.

The present invention relates to a thermoplastic resin composition obtained by mixing waste plastics, which is a resin for a high strength material which can not be found in recycled resins using conventional waste plastics, and which is provided as a filling material for an inexpensive and environmentally friendly material, And provides a very advantageous invention that greatly reduces the raw material by providing a space for saving the raw material at the center between the profiles.

10: Filled wall sewer pipe 20, 20a: Filler
21: uneven 30: profile
31: reduction space 40: joint member
100: crusher 110: foreign material separator
120: Melt extruder 130: Filler coating extruder
131: extrusion space 132, 133: filler material extrusion hole
134: central core 140: primary cooler
150: winding device 160: joint member extruder
170: Secondary cooler 180: Cutting device

Claims (6)

A pulverizer (100) for selectively collecting the collected waste plastics according to their types and pulverizing the pulp to a size of 1 to 10 cm; A foreign matter separator 110 connected to the crusher 100 and removing foreign substances such as metal foreign substances or soil during the supply of crushed waste plastic; A melt extruder (120) for melting the waste plastics supplied from the foreign material separator (110) to supply and storing the waste plastics as a pellet at a temperature of 170 to 310 캜 and extruding the filler along an oblique outer surface; In the process of transferring the filler supplied from the melt extruder 120, polyethylene (PE) is melted with the outer diameter of the filler to form a coating having a thickness of 2 to 40 mm, and a filler coating An extruder 130; A primary cooler 140 for impregnating the cooling water in the process of supplying the profile or for cooling the cooling water to the outside diameter; The cooled profile is spirally fed in the primary cooler 140 and polyethylene (PE) is melted in the joint member extruder 160 between the profiles to form a joint member with an interval (width) of 3 to 30 mm An apparatus 150 for wine; A secondary cooler 170 for supplying cooling water to the inside diameter and the outside diameter of the filling wall sewer pipe 10 formed in the cylindrical winding device 150 so that the cooling water is cooled; And a cutting device (180) for cutting the filled wall sewage pipe (10) cooled by the secondary cooler (170) to a length of 6 to 10 m, the apparatus comprising:
The filler coating extruder 130 is extruded so as to form two fillers 20 and 20a at regular intervals so that concavities and convexities 21 are formed along the outer diameter of the filler material coating extruder 130, And a profile (30) for coating the filler (20, 20a) is formed in a center (31) of the mold.
The method according to claim 1,
The filling material coating extruder 130 is formed with filler material extrusion holes 132 and 133 through which unevenness 21 is formed along an outer diameter of the filler material coating extruder 130 and the fillers 20 and 20a formed at regular intervals are extruded, A center core 134 in which a reduction space 31 is formed is located between the filler material extrusion holes 132 and 133 and the extrusion space 131 is formed by extruding the filler material 20 and 20a into the profile 30 Wherein the waste plastics are used as raw material-saving type filling material sewage pipes.
The method according to claim 1,
The filler coating extruder 130 is formed integrally with the reduction space 31 in the form of a rectangle or a long hole between the filler extrusion holes 132 and 133 where the fillers 20 and 20a are formed on both sides And a central core (134). The apparatus for manufacturing a raw material-saving filling wall sewage pipe using waste plastic.
The method according to claim 1,
The filler coating extruder 130 is formed with filler extrusion holes 132 and 133 for extruding the fillers 20 and 20a having a predetermined outer diameter and having irregularities 21 with an outer diameter and the filler material extrusion holes 132 and 133 A center core 134 is formed to form a reduction space 31 therebetween and an extrusion space 131 through which a profile 30 for coating the fillers 20 and 20a is extruded is formed,

"And " a " type of waste plastics.
The method according to claim 1,
The filler coating extruder 130 is provided with filler extrusion holes 132 and 133 through which concave and convex portions 21 are formed along the outer diameter of the extruder 130 and the fillers 20 and 20a formed at upper and lower sides are extruded, And a center core 134 in which a reduction space 31 is formed is located between the filling material extrusion holes 132 and 133. The center core 134 surrounds the fillers 20 and 20a and is extruded in a profile 30 ) Of the raw material-saving type filling wall sewage pipe using the waste plastic.
The method according to claim 1,
The filler coating extruder 130 is integrally formed with the reduction space 31 in the form of either a square or a long hole between the filler material extrusion holes 132 and 133 where the fillers 20 and 20a are formed on the upper side and the lower side, And a center core (134) that is formed on the inner surface of the center core (134).

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