KR102110148B1 - A regeneration device equipped with high frequency heating unit of two kinds of resin and a regeneration method thereof - Google Patents

Abstract

The present invention relates to a heterogeneous resin reproducing apparatus having a high-frequency heating unit and a regenerating method using the same, and more specifically, a crushing unit to crush the waste synthetic resin to be injected by a crossing day; A crushing unit for finely pulverizing particles of the waste synthetic resin crushed by the crushing unit 100; A long cylindrical conveying and extruding part for conveying the waste synthetic resin crushed in the crushing part through a screw and extruding it to a discharge part; A high-frequency heating unit connected to the center of the transfer and extrusion unit and the outside of the discharge unit to heat and heat the waste synthetic resin transferred from the transfer and extrusion unit to combine and melt the waste synthetic resin particles; And an outlet portion connected to an end of the transfer and extrusion portion to discharge the molten waste synthetic resin.
The heterogeneous resin reproducing apparatus having the high-frequency heating unit according to the present invention and the reproducing method using the same have the following effects.
First, the present invention can improve the productivity and efficiency in the method of producing recycled raw materials by allowing the production of recycled raw materials without classifying waste synthetic resins as well as a single type of synthetic resin through temperature control by a high-frequency heating unit. .
Second, it is possible to produce high-quality recycled raw materials by solving the carbonization or beauty melting problems caused by various types of conventional waste synthetic resins by controlling temperature and time using characteristics such as rapid heating of the high-frequency heating unit.
Third, since rapid heating, internal heating, and even heating are possible in the high-frequency heating unit, there are advantages in terms of the facility, site, and cost compared to facilities required for conventional melting.
Fourth, porous pellets can be formed by double heating of the high-frequency heating unit, and these porous pellets have advantages in terms of thermal power or ignition than ordinary pellets without voids, thereby increasing the value as a recycled raw material.

Description

A heterogeneous resin recycling device with a high-frequency heating unit and a recycling method using the same {A REGENERATION DEVICE EQUIPPED WITH HIGH FREQUENCY HEATING UNIT OF TWO KINDS OF RESIN AND A REGENERATION METHOD THEREOF}

The present invention relates to a heterogeneous resin reproducing apparatus having a high-frequency heating unit and a regeneration method using the same, and more specifically, it is recycled by melting and regenerating the heterogeneous resin through double heating of a high-frequency heating means in the process of recycling raw material recycling It relates to a heterogeneous resin reproducing apparatus having a high-frequency heating unit capable of improving the quality and productivity of the raw material and a reproducing method using the same.

Hereinafter, a background art will be described with reference to the accompanying drawings.

Synthetic resin, commonly referred to as plastic, is widely used as a base material for industrial and household goods due to its lightness, ease of processing, and not easily deteriorated or decayed. Accordingly, the use of synthetic resin products has increased rapidly due to the acceleration of industrial development, and the amount of waste is continuously increasing. The treatment of such waste synthetic resins is mainly carried out by reclamation, incineration and recycling methods for recycling.

However, synthetic resin products do not decompose for decades after disposal, and due to the disadvantages of large volume and inconvenient handling, many restrictions, such as selection of a landfill site, follow. In addition, since it is difficult to completely burn during incineration and generates toxic gases, there are limitations such as environmental regulations on air pollution, and there is a problem in that the cost of investing in the facilities of the incinerator is high. In addition, there is a problem in that secondary environmental pollution is caused because residual metal remains after incineration.

Therefore, in recent years, appropriate treatment countermeasures for waste synthetic resins have emerged as social problems and concerns, and as a solution, regeneration treatment for recycling of waste synthetic resins has been suggested as the most effective and efficient waste synthetic resin treatment method. Recycling treatment methods for the recycling of waste synthetic resins have been actively promoted in research and development and commercialization of products in terms of recycling of resources and prevention of environmental pollution.

Typically, the recycling process of waste synthetic resin is produced and recycled as a recycled raw material in the form of pellets or chips in the process of collecting, crushing, and extruding synthetic waste products, and related prior arts are registered in Korea. It is disclosed in Korean Patent Publication No. 10-1091214, Korean Patent Publication No. 2003-0089187, and the like.

Looking at the conventional waste synthetic resin recycling method is as follows.

First, after crushing and pulverizing the waste synthetic resin washed through the collection and washing of waste products, the pulverized waste synthetic resin is melted and extracted into a long noodles form, and after cooling the recycled raw materials of such noodles form, they are cut into pellets again. It goes through a process.

The conventional waste synthetic resin recycling method and apparatus thereof have the following problems.

First, a recycled raw material is usually produced using a single type of synthetic resin. In this case, the efficiency and productivity have been reduced due to the production of the recycled raw material, such as screening.

Second, in the case of producing recycled raw materials using different synthetic resins as raw materials, the melting point is different for each waste synthetic resin. There was a problem that the quality of the produced recycled raw materials, such as does not melt.

Third, in the case of the conventional regeneration apparatus as described above, since the time required for melting the waste synthetic resin is required, there is a problem in that a large amount of facilities and sites required for the process, such as a long melting facility, is required.

Republic of Korea Registered Patent Publication No. 10-1091214 (Announcement date: December 7, 2011)

The problem to be solved by the present inventors heterogeneous resin recycling apparatus and a recycling method using the same is as follows.

First, a recycled raw material is usually produced using a single type of synthetic resin, and in this case, it is intended to solve a problem that is a factor that deteriorates efficiency and productivity due to the production of the recycled raw material, such as screening is required.

Second, in the case of producing recycled raw materials using different synthetic resins as raw materials, the melting point is different for each waste synthetic resin, and at high temperature, the waste synthetic resin having a low melting point may be carbonized, and at low temperature, the waste synthetic resin having a high melting point Is intended to solve the problem that the quality of the produced recycled raw materials, such as not being melted, deteriorates.

Third, in the case of the conventional regeneration device as described above, since the time required for the melting of the waste synthetic resin is required, it is intended to solve a problem that a facility and site required for the process, such as a long melting facility, are required on a large scale.

A heterogeneous resin regeneration device having a high-frequency heating unit according to the present invention for achieving the above object, and a regeneration method using the same, include: a crushing unit for crushing the input waste synthetic resin by a crossing day; A crushing unit for finely pulverizing particles of the waste synthetic resin crushed by the crushing unit 100; A long cylindrical conveying and extruding part for conveying the waste synthetic resin crushed in the crushing part through a screw and extruding it to a discharge part; A high-frequency heating unit connected to the center of the transfer and extrusion unit and the outside of the discharge unit to heat and heat the waste synthetic resin transferred from the transfer and extrusion unit to combine and melt the waste synthetic resin particles; And an outlet portion connected to an end of the transfer and extrusion portion to discharge the molten waste synthetic resin.

In addition, the waste synthetic resin is a heterogeneous resin of nylon and PE, and the pulverizing portion, the pulverized synthetic resin crushed in the crushing portion is finely crushed particles by a rotary blade, and the pulverized waste synthetic resin is formed with a plurality of through holes It includes a rotating blade to pass through the filter membrane and to form an air flow in the downward direction to facilitate the passage of the filter membrane of the waste synthetic resin, and the high-frequency heating unit is connected to the outside of the central portion of the transport and extrusion unit, and particles of the waste synthetic resin A first high-frequency heating unit that maintains 280 to 310 ° C. to form voids by forming a bond between the livers; And a second high-frequency heating unit that is connected to the outside of the discharge unit and maintains 170 to 190 ° C. to activate and melt the inter-particle bonds coupled at the first high-frequency heating unit.

In addition, using the heterogeneous resin regeneration device, a crushing step of crushing the waste synthetic resin to be input by a crossing day; A pulverizing step in which the pulverized synthetic resin crushed in the crushing step is finely pulverized by a rotating blade, and the pulverized synthetic resin passes through a filter membrane having a plurality of through holes; A transfer and extrusion step of transferring the waste synthetic resin crushed in the crushing step through a screw and extruding it to a discharge portion; A high-frequency heating step of bonding and melting the waste synthetic resin particles to form voids by applying heat to the waste synthetic resin transferred in the transferring and extruding steps; And a discharge step of discharging molten waste synthetic resin by combining to form a void in the high-frequency heating step, wherein the high-frequency heating step comprises 280 to 310 ° C. to form a void between the particles of the waste synthetic resin to form a void. A first high frequency heating step to maintain; And a second high frequency heating step of maintaining 170 to 190 ° C. to activate and melt the inter-particle bonds bound in the first high frequency heating step.

The heterogeneous resin reproducing apparatus having the high-frequency heating unit according to the present invention and the reproducing method using the same have the following effects.

First, the present invention can improve the productivity and efficiency in the method of producing recycled raw materials by allowing the production of recycled raw materials without classifying not only a single type of synthetic resin but also different types of waste synthetic resin through temperature control by a high-frequency heating unit. .

Second, it is possible to produce high-quality recycled raw materials by solving the carbonization or beauty melting problems caused by various types of conventional waste synthetic resins by controlling temperature and time using characteristics such as rapid heating of the high-frequency heating unit.

Third, since rapid heating, internal heating, and even heating are possible in the high-frequency heating unit, there are advantages in terms of the facility, site, and cost compared to facilities required for conventional melting.

Fourth, porous pellets can be formed by double heating of the high-frequency heating unit, and these porous pellets have advantages in terms of thermal power or ignition than ordinary pellets without voids, thereby increasing the value as a recycled raw material.

1 is a cross-sectional view schematically showing a heterogeneous resin reproducing apparatus according to an embodiment of the present invention.
2 is a detailed cross-sectional view briefly showing a crushing part and a crushing part in a heterogeneous resin reproducing apparatus according to an embodiment of the present invention.
Figure 3 is a detailed cross-sectional view briefly showing the extrusion portion and the high-frequency heating unit and the discharge unit in the heterogeneous resin recycling apparatus according to an embodiment of the present invention.
4 is a heterogeneous resin regeneration device according to an embodiment of the present invention, (a) is a pulverized waste synthetic resin, (b) is a particle-to-particle waste synthetic resin and (c) is bonded, melted and cut pellet shape Conceptual diagram shown briefly.
5 is a flowchart briefly showing a method of regenerating a heterogeneous resin according to an embodiment of the present invention.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. However, in the detailed description of a preferred embodiment of the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions.

In addition, throughout the specification, when a part is connected to another part, this includes not only the case of being directly connected, but also the case of being connected indirectly with another element in between. In addition, the inclusion of a certain component means that other components may be further included rather than excluding other components unless otherwise specified.

1 is a cross-sectional view briefly showing a heterogeneous resin reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a detailed cross-sectional view briefly showing a crushing part and a crushing part in a heterogeneous resin reproducing apparatus according to an embodiment of the present invention , FIG. 3 is a detailed cross-sectional view briefly showing an extrusion unit, a high-frequency heating unit, and a discharge unit in a heterogeneous resin recycling apparatus according to an embodiment of the present invention. 4 is a heterogeneous resin regeneration device according to an embodiment of the present invention, (a) is a pulverized waste synthetic resin, (b) is a particle-to-particle waste synthetic resin and (c) is bonded, melted and cut pellet shape It is a conceptual diagram briefly illustrated, and FIG. 5 will be described together with a simplified flowchart illustrating a method for regenerating heterogeneous resin according to an embodiment of the present invention.

Looking at the conventional waste synthetic resin regeneration treatment method, first, the waste synthetic resin is crushed and crushed through the collection and washing steps, and then the pulverized waste synthetic resin is melted and extracted in the form of a long noodles. After the recycled raw material is cooled, it is subjected to a process of cutting again into pellets. The conventional waste synthetic resin regeneration treatment method and its device have the following problems. First, conventionally, a single type of synthetic resin is used to produce recycled raw materials. In this case, recycled raw materials such as screening are required. In the case of producing recycled raw materials using heterogeneous synthetic resins as raw materials, the melting point is different for each waste synthetic resin, and at high temperatures, waste synthetic resins with a low melting point are carbonized. In the case of low temperature, there was a problem in that the quality of the produced recycled raw material was deteriorated such that the waste synthetic resin having a high melting point was not melted. Third, in the case of the conventional regenerating device as described above, the time required for melting the waste synthetic resin was Because it is necessary, facilities and sites required for the process such as long melting facilities are large. There are problems you need to. In order to solve this problem, the present invention can avoid the quality deterioration in the production of recycled raw materials by inputting different kinds of resin through a specific temperature by the high-frequency heating unit, and to produce the recycled raw material having voids, thereby increasing the value of the raw materials. The aim is to provide a device and method that can be enhanced. Hereinafter, the playback device and the playback method will be described in detail.

As shown in Figure 2, the heterogeneous resin (W) regeneration device according to an embodiment of the present invention, a crushing unit 100 for crushing the waste synthetic resin (W) to be input by a crossing day; A crushing unit 200 for finely pulverizing particles of the waste synthetic resin W crushed by the crushing unit 100; A long cylindrical transport and extrusion unit 300 for transporting the waste synthetic resin W crushed in the grinding unit 200 through a screw and extruding it to the discharge unit 500; The waste synthetic resin (W) particles are connected to the center of the transfer and extrusion section 300 and the outside of the discharge section 500 to apply heat to the waste synthetic resin (W) transferred from the transfer and extrusion section 300 High-frequency heating unit 400 to combine and melt each other; And an outlet portion 500 connected to an end of the transfer and extrusion portion 300 to discharge the molten waste synthetic resin W.

The crushing unit 100 serves to cut the waste synthetic resin (W) to be input to a suitable size. This is the waste synthetic resin (W) is cut and crushed by the crushing portion 100 having a crossing blade. The crushing unit 100 has the same configuration and function as the apparatus for performing the crushing function used in the waste synthetic resin (W) regeneration device, so a detailed description thereof will be omitted.

The crushing part 200 serves to finely pulverize the particles of the waste synthetic resin W crushed by the crushing part 100, and rotates the waste synthetic resin W crushed by the crushing part 100 by a rotating blade. The particles are finely crushed by 210, and the pulverized waste synthetic resin W passes through the filter membrane 220 in which a plurality of through holes are formed, and the filter membrane 220 of the waste synthetic resin W passes It may include a rotary blade 230 to facilitate. That is, the waste synthetic resin (W) that is crushed has a large size and requires a long time to melt, and side effects such as carbonization may occur if the temperature is too high to reduce the melting time. That is, in order to reduce the time required for melting while maintaining a temperature at which carbonization does not occur, a process of finely pulverizing the particles of the waste synthetic resin (W) is required. In particular, the heterogeneous resin (W) regeneration device according to an embodiment of the present invention is made of pellets in which the final product has pores. In order to make pellets having such pores, the particle size must be crushed to a small size. The pore manufacturing process will be described in detail in the following description of the high frequency heating unit 400.

The structure of the crushing unit 200 may include a rotating blade 210, a filter membrane 220, and a rotating blade 230.

The filter film 220, the particles of the waste synthetic resin (W) pulverized by the rotary blade 210, so that only the particles pulverized small so that the pores are formed by the high-frequency heating unit 400 to be described below It serves to move to the transport and extrusion unit 300. That is, when the particles are large, the particles are further crushed by the rotary blade 210 and only particles that can pass through the through hole are moved to the transfer and extrusion unit 300. Therefore, as shown in Figure 2, it is installed in a form that closes the connection passage leading from the crushing unit 100 to the transport and extrusion unit 300, that is, the crushing unit 200 passage. The waste synthetic resin (W) must be installed in this way so that it can only pass through the through hole of the filter membrane (220).

The rotary blade 210 serves to finely pulverize the waste synthetic resin (W) crushed in the crushing part (100). As shown in FIG. 2, the rotating blade 210 may be attached to the central portion of the filter film 220 toward the upper portion. Also, although not shown in the drawing, the rotary blade 210 may be connected to the sidewall of the crushing unit 200 to crush the waste synthetic resin W.

The rotary blade 230, the through hole of the filter membrane 220 is not large, and the waste synthetic resin (W) is light, so it is not easy to pass through the filter membrane 220 by gravity. In order to facilitate, it serves to allow air to flow downward. The rotation axis may be placed on the same line as the rotation axis of the rotation blade 210 and may have the same rotation axis. That is, the rotational axis 210 and the rotational blade 230 may be rotated in the same manner by extending the rotational axis of the rotational blade 210 as the rotational axis of the rotational blade 230. In addition, like the electric fan, the rotary blade 230 is inclined to have a constant angle so that air flows downward. Since the wind generated by the rotary blade 230 may have a lower efficiency when there is no outlet, it is also possible to form such an air vent in the upper or side end of the transport and extrusion part 300. Of course, the pulverized waste synthetic resin (W) should be formed so as to form a plurality of ventilation holes of a fine size so as not to escape.

The conveying and extruding part 300 connects the crushing part 200 and the discharging part 500, the outer shape of the conveying and extruding part 300 has a long cylindrical shape, and the discharging from the upper end of one end The part 500 is connected, and the other end is connected to the discharge part 500. A screw is formed in the longitudinal direction in the inner central portion of the transfer and extrusion unit 300 to transfer the waste synthetic resin W crushed in the grinding unit 200 to the discharge unit 500 through the screw. In this transfer process, the transfer and extruding portion 300 is heated by the high-frequency heating portion 400 connected to the outside of the central portion to be intermolecular bonds and melt. In addition, in addition to the transport role, the waste synthetic resin (W) melted in the high-frequency heating unit 400 is applied to the discharge unit 500 to discharge pressure.

The high-frequency heating unit 400 serves as a heating means using high-frequency induction heating. The first high-frequency heating unit 410 and the discharge unit which are connected to the outside of the central portion of the transfer and extrusion unit 300 to form a gap between the particles of the waste synthetic resin (W) and form a void to maintain 280 to 310 ° C 500) is connected to the outside of the first high-frequency heating unit 410 includes a second high-frequency heating unit 420 that maintains 170 ~ 190 ℃ to activate and melt the inter-particle bonding. Here, high-frequency induction heating is a method of heating an object by using high frequency in heating an object. When a metal is placed in a coil through which a high-frequency current (1 ㎑ or more) flows, a magnetic field generated by the coil by electromagnetic induction between the metals A eddy current that induces a magnetic field in the direction of offset is generated. Heat is generated by this current and the temperature rises. Electron induction is a phenomenon that occurs for conductors (metals, etc.), so it is used to heat metal. This eddy current is larger on the surface of the metal and rapidly decreases as it enters the interior. An induction heater uses such induction heating, that is, the induction heater is composed of an electromagnet with a coil wound around a conductor. When an alternating current is passed through the coil, an alternating magnetic field is formed in the coil, which changes direction with time. At this time, an alternating magnetic force is applied to the conductor, and a eddy current (eddy current) is generated in the conductor due to electromagnetic induction. And the object is heated by the Joule heat generated by the eddy current. The high-frequency heating unit 400 of the present invention, as shown in Figure 3, has a configuration similar to this induction heater. That is, the coil is wound on the outside of the transfer and extrusion section 300, and an AC current is passed through the coil to heat the outer surface of the transfer and extrusion section 300, which is a conductor, to transfer heat to the waste synthetic resin (W). It becomes. Of course, such that the heat of the outer surface of the transfer and extrusion unit 300 is not transmitted to the outside and to protect the coil from external force, a housing surrounding the coil and the outer surface may be provided. This method can be equally applied to the first high frequency heating unit 410 as well as the second high frequency heating unit 420.

The advantage of this high-frequency induction heating is that uniform heating is possible, and internal heating and rapid heating are possible. Taking advantage of the rapid heating and uniform heating in a certain area, the particles of the pulverized synthetic resin (W) are melted by adding the temperature above the melting point to the particles of the pulverized synthetic waste resin (W) for a short time. The livers can be combined with each other. While forming the bonds between the particles, the particles forming the bonds may be bonded to each other again. In the process of bonding as described above, only the outside of the particle is melted and the inside is in a solid state, so that the combined particles do not form a perfect circle and are combined into a dumbbell shape, and these dumbbell-shaped particles are combined with another dumbbell-shaped particle to void To form. This process is performed by the first high-frequency heating unit 410. The second high-frequency heating unit 420 serves to form a bond between particles combined by the first high-frequency heating unit 410, that is, if the first high-frequency heating unit 410 is primarily a combination of particles, the second The main purpose of the high-frequency heating unit 420 is to combine all the bound particles. That is, in a macroscopic view, it is to be semi-melted in some solid form and some liquid form. In other words, the inside of the particle is solid, but the outside of the particle is liquefied so that all surrounding particles are connected. The temperature by the first high-frequency heating unit and the second high-frequency heating unit is a temperature required for bonding and melting of the heterogeneous resin without carbonization. This is the case for nylon and polyethylene.

The discharge part 500 serves to discharge the waste synthetic resin W melted in the high-frequency heating part 400. It is provided to be connected to the end of the transfer and extrusion unit 300.

 Here, the discharged waste synthetic resin (W) may be produced in a pellet form in two ways.

First, the molten waste synthetic resin (W) is discharged into a long, thin cylindrical shape of noodles, cooled, and then cut and formed into pellets. Second, the melted waste synthetic resin (W) is taken in a pellet mold. There is a compression method. Both of these methods can be used, and these methods are the same as those used in the conventional method for regenerating waste synthetic resin (W), and those skilled in the art will recognize and understand them. do.

Next, the regeneration method for producing recycled raw materials using the heterogeneous resin (W) regeneration device will be described. A method for regenerating a heterogeneous resin (W) according to an embodiment of the present invention includes: a crushing step of crushing the waste synthetic resin (W) to be input by using a crossing day using the heterogeneous resin (W) reproducing apparatus; The pulverized synthetic resin (W) crushed in the crushing step is finely crushed by a rotating blade 210, and pulverized to pass the crushed pulmonary synthetic resin (W) through a filter membrane 220 having a plurality of through holes step; A transfer and extrusion step of transferring the waste synthetic resin (W) crushed in the grinding step through a screw and extruding it to the discharge unit 500; A high-frequency heating step of bonding and melting the waste synthetic resin (W) particles to form voids by applying heat to the waste synthetic resin (W) conveyed in the transporting and extrusion steps; Including the discharge step of discharging the molten waste synthetic resin (W) by combining to form a void in the high-frequency heating step, including, but, the high-frequency heating step, to form a void between the particles of the waste synthetic resin (W) A first high frequency heating step of maintaining 280-310 ° C; And a second high frequency heating step of maintaining 170 to 190 ° C. to activate and melt the interparticle bonds bound in the first high frequency heating step. Look through the following examples.

[Example]

(1) Shredding stage

The crushing step is a step of crushing the waste synthetic resin (W) to be input into relatively large particles. In particular, the waste synthetic resin (W) to be introduced is a heterogeneous resin (W), which is nylon and PE (polyethylene). This is because the car seat is made of double-sided, so the front is made of nylon and the back is made of polyethylene. Separation and recycling of these materials is complicated and the separation process is not easy, which greatly reduces efficiency in terms of cost, time, and energy. Therefore, it is the present invention that a method for producing it together as a recycled raw material is put together.

(2) Grinding step

The crushing step is a step of pulverizing the heterogeneous resin W crushed into large particles in the crushing step into small particles. The heterogeneous resin W is crushed into small particles by the rotary blade 230, and the crushed particles are transferred to the transfer and extrusion step through the filter membrane 220. The filter film 220 allows only particles of a certain size to pass through, and in order to help the passage, an air flow is formed downward by the rotary blade 230.

(3) Transfer and extrusion steps

The pulverized heterogeneous resin (W) is moved to the conveying and extrusion step through the filter membrane 220, and the displaced heterogeneous resin (W) is discharged through the screw of the conveying and extruding part 300. ) And is extruded to the discharge unit 500. In this process, the high-frequency heating unit 400 is heated.

(4) High frequency heating step

The heterogeneous resin (W) is heated by the high-frequency heating unit 400 in the process of being transferred and extruded to the discharge unit 500 in the transfer and extrusion steps. In the high-frequency heating step, the first high-frequency heating step to maintain 280 to 310 ° C. to form a void and form a gap between the particles of the waste synthetic resin (W), and to activate the inter-particle binding combined in the first high-frequency heating step, and It includes a second high frequency heating step to maintain 170 ~ 190 ℃ to melt. At this time, the heating time may be expressed by the speed at which the heterogeneous resin W is moved by the screw, and the speed of the heterogeneous resin W moved by the screw is 5 to 10 cm per second. The first high-frequency heating step is to achieve a single-particle bonding in the transport process, the second high-frequency heating step is to combine the combined particles with each other in the discharge unit 500 to be in a semi-melting state when viewed macroscopically. The semi-melt state refers to a state in which particles are solid but particles are liquefied and particles are bonded to each other.

(5) Discharge stage

It is a step of discharging the combined and melted heterogeneous resin (W) in the high-frequency heating step. As described above, there are two methods of pellet formation after the discharge step.

First, the molten waste synthetic resin (W) is discharged into a long, thin cylindrical shape of noodles, cooled, and then cut and formed into pellets. Second, the melted waste synthetic resin (W) is taken in a pellet mold. Compression method can be used.

The heterogeneous resin reproducing apparatus having a high-frequency heating unit and a reproducing method using the same according to an embodiment of the present invention as described above does not classify a single type of synthetic resin as well as heterogeneous waste synthetic resin through temperature control by the high-frequency heating unit. It can improve the productivity and efficiency in the method of producing recycled raw materials by allowing it to be produced with recycled raw materials, and due to the variety of types of conventional waste synthetic resins through temperature and time control using characteristics such as rapid heating of the high-frequency heating part. It can produce high-quality recycled raw materials by solving the carbonization or cosmetic melting problems. Rapid heating, internal heating, and even heating are possible in the high-frequency heating section. There is an efficient advantage. In addition, porous pellets can be formed by double heating of the high-frequency heating unit, and these porous pellets have an advantage in terms of thermal power or ignition than ordinary pellets without voids, thereby increasing the value as a recycled raw material.

The present invention described above can be variously modified or applied by a person having ordinary knowledge in the technical field to which the present invention belongs, and the scope of the technical idea according to the present invention should be defined by the following claims.

M1: motor of grinding unit M2: motor of conveying and extrusion unit
W: waste synthetic resin (heterogeneous resin) 100: crushing part
200: crushing unit 210: rotary blade
220: filter membrane 230: rotary wing
300: transfer and extrusion 400: high-frequency heating
410: first high-frequency heating unit 420: second high-frequency heating unit
500: outlet

Claims (3)

A crushing part (100) crushing the waste synthetic resin (W) to be introduced by a crossing blade;
A crushing unit 200 for finely pulverizing particles of the waste synthetic resin W crushed by the crushing unit 100;
A long cylindrical transport and extrusion unit 300 for transporting the waste synthetic resin W crushed in the grinding unit 200 through a screw and extruding it to the discharge unit 500;
The waste synthetic resin (W) particles are connected to the center of the transfer and extrusion section 300 and the outside of the discharge section 500 to apply heat to the waste synthetic resin (W) transferred from the transfer and extrusion section 300 High-frequency heating unit 400 to combine and melt each other; And
And including; discharge unit 500 for discharging the feed and the waste synthetic resins (W) is connected to the melt end of the extruded part 300
The waste synthetic resin (W) is a heterogeneous resin (W) of nylon and PE,
The crushing unit 200 finely pulverizes the waste synthetic resin W crushed by the crushing unit 100 by a rotary blade 210, and the pulverized waste synthetic resin W is formed with a plurality of through holes To pass through the filter membrane 220, and includes a rotary blade 230 that forms an air flow in the downward direction to facilitate the passage of the filter membrane 220 of the waste synthetic resin (W),
The high-frequency heating unit 400,
A first high-frequency heating unit 410 connected to the outside of the central portion of the transfer and extrusion unit 300 to form a gap between the particles of the waste synthetic resin W and to maintain 280 to 310 ° C to form voids; And
It includes a second high-frequency heating unit 420 which is connected to the outside of the discharge unit 500 and maintains 170 to 190 ° C to activate and melt the inter-particle bonding combined in the first high-frequency heating unit 410; ,
An air vent is formed at an upper or side end of the transfer and extrusion part 300,
The discharged waste synthetic resin (W) is characterized in that it is manufactured in the form of pellets with pores , heterogeneous resin recycling device. delete A method for regenerating a heterogeneous resin using the heterogeneous resin reproducing apparatus of claim 1,
Crushing step of crushing the waste synthetic resin (W) to be introduced by a crossing day;
The pulverized synthetic resin (W) crushed in the crushing step is finely pulverized by a rotating blade (210), and the pulverized synthetic resin (W) is passed through the filter film (220) in which a plurality of through holes are formed. Grinding step;
A transfer and extrusion step of transferring the waste synthetic resin (W) crushed in the grinding step through the screw and extruding it to the discharge part (500);
A high-frequency heating step of combining and melting the waste synthetic resin (W) particles to form voids by applying heat to the waste synthetic resin (W) conveyed in the transporting and extrusion steps; And
Including the discharge step of discharging the molten waste synthetic resin (W) by combining to form a void in the high-frequency heating step;
The high-frequency heating step,
A first high frequency heating step of maintaining 280 to 310 ° C. to form voids by forming bonds between the particles of the waste synthetic resin (W); And
And a second high frequency heating step of maintaining 170 to 190 ° C. to activate and melt the inter-particle bonds bound in the first high frequency heating step.

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