KR101231395B1 - Device for recycling of poly vinyl chloride from waste window frame made of synthetic resins and recycling process thereof - Google Patents

Abstract

PURPOSE: Vinyl chloride resin recycling equipment and method from waste synthetic resin window frames are provided to produce crushed materials with a uniform size as well as reduce noise and dust by crushing the scrap of waste synthetic resin window frames under the water. CONSTITUTION: A vinyl chloride resin recycling method from waste synthetic resin window frames includes the following steps: collecting waste synthetic resin window frames and removing foreign substances attached to the surface; putting the waste synthetic resin window frames, obtained from the foreign substance removing step, with water and producing crushed materials with the particle size of 10mm or less; separating the crushed materials with the particle size of 10mm or less, obtained from the crushing step, into polyethylene films and vinyl chloride resin particles by maintaining a screw, separating into polyethylene films and vinyl chloride resin particles, with the diameter of 150mm, length of 2m, revolutions per minute of 60rpm, and slope of 5 degrees; drying the vinyl chloride resin particles obtained from the separation step; acquiring the vinyl chloride resin particles obtained from the drying step. [Reference numerals] (AA) Collecting waste synthetic resin window frames and removing foreign substances; (BB) Crushing the collecting waste synthetic resin window frames with water; (CC) Separating waste synthetic resin particles; (DD) Drying vinyl chloride resin particles; (EE) Acquiring vinyl chloride resin particles

Description

Device for recycling of Polyvinyl Chloride from Waste Window Frame Made of Synthetic Resins And Recycling Process Thereof}

The present invention relates to a recycling apparatus for polyvinyl chloride (PVC) from waste synthetic resin window frames, and a method for regenerating the same. More specifically, the waste synthetic resin window frame scraps from which foreign substances such as dust or swarm are removed are crushed in water to the surface thereof. The present invention relates to an apparatus for regenerating vinyl chloride resin by separating attached polyethylene (PE) release film by a difference in specific gravity, and a regeneration method thereof.

  Window is composed of window glass and window frame. Among them, window frame is generally manufactured as wood most. Recently, it is made of vinyl chloride resin (PVC) which is a kind of metal such as aluminum or iron or synthetic resin. ought.

       In the case of using a metal such as aluminum or iron as the material of the window frame, the old window frame is not only bent or rusted, but also causes huge heat loss. In this case, it is advantageous to use a synthetic resin or a wood-based material. In particular, when using a synthetic resin window frame, it boasts a variety of colors and is also loved by its excellent barrier properties, heat retention, and ease of maintenance.

       Synthetic resin window frames are made of rigid PVC and have a release film made of polyethylene (PE) attached to the surface to prevent surface damage from scratches during transportation and installation. After prolonged use, they are disposed of together when the window frames are replaced or when the building is destroyed. In order to remove the release film made of polyethylene (PE) attached to the surface of the discarded synthetic resin window frame in order to regenerate only vinyl chloride resin (PVC), the polyethylene (PE) release film should be removed first. Therefore, there arises a problem that requires a lot of manpower and time.

On the other hand, as a technique for recycling waste plastics, Korean Patent Publication No. 10-2009-96463 (September 10, 2009) discloses waste plastics, particularly mixed waste plastics recycling, which can be carried out at a lower cost in terms of energy and mechanical properties. A method of removing wood pulp and other adhering materials from waste plastics is disclosed, which is to remove paper from wood pulp from waste plastics, wherein the polyethylene release film is removed from the waste synthetic resin window frame of the present invention to recover PVC. There is a big difference. In addition, Korean Patent Publication No. 10-1075585 (October 21, 2011) discloses shredding of a recycled scrap for a fabric sheet containing synthetic resin, a sorting conveying method, and a shredding and sorting conveying apparatus thereof, which include a nonwoven fabric or a filament yarn, The present invention relates to a method for shredding, sorting and transporting recycled scraps for fabric sheets containing synthetic resin such as tent paper or hemp including synthetic resin, and shredding and sorting conveying apparatus, wherein the polyethylene release film is removed from the waste synthetic resin window frame of the present invention. This is a big difference from the equipment to recycle PVC.

Therefore, the necessity of developing an apparatus and a method for removing the polyethylene chloride (PE) release film attached to the surface from the waste synthetic resin window frame by the difference in specific gravity to simply separate and recycle the vinyl chloride resin (PVC) particles.

The present invention has been made in order to solve the above problems, by crushing the waste synthetic resin window frame scrap in water and then rotating the screw (screw) to remove the release film of the polyethylene floating by the difference in specific gravity vinyl chloride resin (PVC) There is a problem to provide a regeneration device of vinyl chloride resin and a regeneration method thereof from a waste synthetic resin window frame that can separate and regenerate particles.

The present invention comprises a waste crusher (10) for crushing the waste plastic resin window frame scrap and water to be broken into small particles of crushed material; A screw (20) for conveying the crushed matter and water having a small particle size to separate the polyethylene release film and the vinyl chloride resin particles; A collecting well 40 for collecting water dropped from the screw; A dryer (50) for drying while conveying the vinyl chloride resin particles separated from the screw; In the apparatus for filtering and reclaiming the vinyl chloride resin particles dried from the dryer (50) with the screen (15), the shredder (10) has an inlet (12) into which the waste synthetic resin window frame scraps are put thereon, The screen 13 is installed to separate the crushed matter having a particle size of less than 10mm, the screw 20 is 150mm in diameter, 2m in length, conveying the polyethylene release film crushed by maintaining the rotational speed 60rpm, inclination 5 ° Floating on the water and attached to the screw 20, the film collecting tube 30 for discharge to the outside is installed on the upper right, the crushed matter of less than 5mm particle size falls with the water at the lower right of the screw 20 The screen 14 is installed to be separated from the crushed matter having a particle size of 5 ~ 10mm, and the lower portion of the screen 14 to collect the particles and the vinyl chloride resin particles and water less than 5mm passed through the screen 14 to fall. House and modified (40) is installed, and provides the sump (4) regeneration of the vinyl chloride resin system from the waste plastic window frame, characterized in that it comprises a water tank 11 to be reused by circulating the water stored in the.

In another aspect, the present invention provides a recycling apparatus for vinyl chloride resin from the waste synthetic resin window frame, characterized in that the crusher 10 is a spiral wet crusher having a rotary blade (60).

In another aspect, the present invention is to remove the foreign matter attached to the surface by collecting the waste synthetic resin window frame; Shredding step of making the waste synthetic resin window frame obtained in the step of removing the foreign matter together with water to form a shredded material having a particle size of 10 mm or less; The shredded material having a particle size of 10 mm or less obtained in the shredding step is a screw 20 separating the polyethylene film and the vinyl chloride resin particles with a diameter of 150 mm and a length of 2 m. The polyethylene film and the vinyl chloride are maintained at 60 rpm and 5 ° inclination. A separation step of separating each other with resin particles; Drying step of drying the vinyl chloride resin particles obtained in the separating step; It provides a method for regenerating the vinyl chloride resin from the waste synthetic resin window frame, characterized in that consisting of an obtaining step of obtaining the vinyl chloride resin particles obtained in the drying step.

In another aspect, the present invention provides a method for regenerating vinyl chloride resin from the waste synthetic resin window frame, characterized in that the crushing step is by helical wet crushing having a rotary blade.

Finally, the present invention provides a method for regenerating vinyl chloride resin from a waste synthetic resin window frame, wherein the separation step separates the shredded material having a particle size of 5 to 10 mm into polyethylene film and vinyl chloride resin particles by the difference in specific gravity.

The present invention having the above configuration can be expected the following effects.

First, since the shredding of the waste synthetic resin window frame scrap is made in water, there is an advantage in that the generation of noise and dust is small as well as the size of the shredded material is uniform.

Second, by using a spiral crusher by a rotary blade can be separated by simply shredding the waste synthetic resin window frame scrap can reduce the energy cost.

Third, since the PVC can be separated and recycled from the conventional waste plastic resin window scraps, there is an advantage of recycling resources.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view of an apparatus for regenerating vinyl chloride resin from a waste synthetic resin window frame according to the present invention.
Figure 2 is a perspective view showing the installation state of the main part of the shredder of the playback device of Figure 1
Figure 3 is an exploded perspective view of the rotary blade coupled to the crusher of Figure 2
Figure 4 is a schematic process diagram of a method for regenerating vinyl chloride resin from the waste synthetic resin window frame according to the present invention

Specific examples of the present invention for providing the above-described solutions and effects will be described in more detail with reference to the accompanying drawings.

1 is a plan view showing the overall installation of the apparatus for regenerating the vinyl chloride resin from the waste synthetic resin window frame according to the present invention, will be described in detail with reference to this.

       Synthetic resin window frames are made of vinyl chloride (PVC), a kind of synthetic resin, and the used window frames are often collected as scrap with a release film made of polyethylene (PE) attached to their surface. The release film attached to the surface must be removed, but the removal is very difficult because the release film is removed from the surface of the small scrap.

       First, the waste synthetic resin window frame is crushed by inserting the waste synthetic resin window frame scrap into the inlet 12 of the shredder 10 in order to crush the waste synthetic resin window scraps into particles having a particle size of 10 mm or less. In order to reduce noise, dust generation, and crushing efficiency, the water stored in the water tank 11 is put together and crushed in a wet manner.

       As the shredder 10, as shown in Figures 2 and 3, by using a spiral wet shredder that can be crushed into a waste having a particle size of less than 10mm by inserting the waste synthetic resin window frame scrap with water with a rotary blade (60). It is desirable to. In addition, as shown in Figure 1, the shredded material having a particle size of 10mm or less shredded in the shredder 10 is transferred to the screw 20 installed in succession through the screen 13 installed on the bottom.

       Shredded particles having a particle size of 10 mm or less passed through the screen 13 to the screw 20 are transferred while being inverted by the rotation of the screw 20 together with water, wherein the screw 20 has a diameter of 150 mm and a length. It is essential to operate while keeping the rotation and feed speed of the screw 20 constant by maintaining 2 rpm, 60 rpm, and 5 ° inclination. By operating the screw 20 under these conditions, the release film made of polyethylene (PE) having a low specific gravity is crushed and then floated on the water to be removed during transport to be collected in the film collection tube 30. In addition, the crushed material having a particle size of less than 5 mm among the pulverized vinyl chloride resin (PVC) crushed material is transported by the rotation of the screw 20 and is dropped through the screen 14 installed on the lower right side thereof with the water collecting well 40. It is flowed into the, 5 ~ 10mm particle size of the crushed material is continuously transferred by the screw 20 is introduced into the dryer 50 can be separated from each other.

       At this time, when the operating conditions of the screw 20 as described above are not satisfied, the release film, the crushed material and the water rotation, the transfer speed is faster or slower, so the release film made of polyethylene (PE), the crushed material having a particle size of less than 5mm, respectively Since the film collection pipe 30 or the collection well 40 is not collected well, they cannot be easily separated.

       The release film made of polyethylene collected in the film collection pipe 30 is discharged to the outside and treated, and the water collected in the sump 40 is transferred to the water tank 11 through a pipe for recycling. Stacked shreds of less than 5mm are discharged to the outside and treated separately.

       5 to 10 mm particle size of the crushed material separated from the screw 20 is transferred to the dryer 50 using a normal hot air installed in series with the screw 20 to remove the crushed material having a large amount of water on its surface Moisture is completely removed and dried.

       The 5 ~ 10mm particle size of the crushed product dried in the dryer 50 may contain a small amount of foreign matter such as small crushed particles of less than 5mm particle size in addition to the vinyl chloride resin particles in order to remove the lower right of the dryer 50 By removing the foreign matter by passing through the screen 15 installed in the it is possible to regenerate the vinyl chloride resin particles of excellent quality.

       Next, a method for regenerating the vinyl chloride resin from the waste synthetic resin window frame will be described in detail.

       First of all, the foreign material removal step of collecting waste synthetic resin window frame scraps and removing foreign matters attached to the surface of the waste synthetic resin window frame scraps is attached to the surface of the waste synthetic resin window frame scraps collected from various collection sites. It can be said to be a pre-treatment step in the method of regenerating the vinyl chloride resin from the waste synthetic resin window frame of the present invention as to remove cleanly using.

       The shredding step of crushing the waste synthetic resin window frame scrap obtained in the foreign material removal step with water to form shreds having a particle size of 10 mm or less is a step for crushing the waste synthetic resin window frame scrap obtained in the foreign material removing step as finely as the waste synthetic resin window frame. The scrap is put into a crusher 10 having a rotary blade 60 attached therein, in which water and water stored in the water tank 11 are crushed together in order to reduce noise, dust generation, and crushing efficiency. It is preferable to

In addition, the crushed matter having a particle size of 10 mm or less passes through the screen 13 installed under the crusher 10.

       The shredded material having a particle size of 10 mm or less obtained in the shredding step is a polyethylene mold release by maintaining the screw 20 at a diameter of 150 mm and a length of 2 m, and maintaining a rotation speed of 60 rpm and a slope of 5 ° to separate the polyethylene release film and the vinyl chloride resin particles. The separation step of separating the film and the vinyl chloride resin particles from each other may be said to be the most important step in the method of regenerating the vinyl chloride resin from the waste synthetic resin window frame of the present invention. In the crushed material having a particle size of 10 mm or less obtained in the crushing step, the crushed polyethylene release film and the vinyl chloride resin particles are mixed, so that the screws 20 are 150 mm in diameter and 2 m in length to separate them from each other. By maintaining the 5 ° to maintain a constant rotation and transfer speed of the screw 20, the polyethylene release film and the vinyl chloride resin particles can be separated from each other. At this time, if the operating conditions of the screw 20 as described above are not satisfied, the release film, the crushed material and water rotation, the transfer speed is faster or slower, so that the release film made of polyethylene (PE), the crushed material having a particle size of less than 5mm respectively film Since the collection pipe 30 or the collection well 40 is not collected well, they cannot be easily separated.

       In the drying step of drying the vinyl chloride resin particles obtained in the separation step, the shredded material having a particle size of 5 to 10 mm separated and transported in the separation step must be removed because the surface contains a large amount of water. To this end, it is transferred to a dryer 50 using a conventional hot air installed in series with the screw 20 to completely remove moisture as a hot product.

       The obtaining step of obtaining the vinyl chloride resin particles obtained in the drying step may be referred to as a finishing step in the method of regenerating the vinyl chloride resin from the waste synthetic resin window frame of the present invention. The 5 ~ 10mm particle size crushed dried in the drying step may contain a small amount of foreign matter, such as small crushed particles of less than 5mm particle size in addition to the vinyl chloride resin particles should be removed. To this end, by passing the screen 15 installed on the lower right side of the dryer 50 to remove the foreign matter it is possible to regenerate the vinyl chloride resin particles of excellent quality.

Although the present invention has been described as described above, it can of course be carried out in various ways within the scope not departing from the technical spirit of the present invention.

10: shredder 11: water tank
12: inlet 13, 14, 15: screen
20: screw 30: film collecting tube
40: sump 50: dryer
60: rotary blade 70: belt
80: motor 90: rotating shaft

Claims (5)

A waste crusher 10 into which waste plastic window frame scrap and water are put together to crush into crushed matter having a small particle size of 10 mm or less;
A screw (20) for conveying the crushed matter and water having a small particle size to separate the polyethylene release film and the vinyl chloride resin particles;
A collecting well 40 for collecting water dropped from the screw;
A dryer (50) for drying while conveying the vinyl chloride resin particles separated from the screw;
In the apparatus for filtering the vinyl chloride resin particles dried from the dryer (50) by the screen (15),
The shredder 10 has an inlet 12 through which the waste synthetic resin window frame scrap is injected into the upper portion, the lower portion is provided with a screen 13 for separating the shredded particles having a particle size of 10 mm or less,
The screw 20 has a diameter of 150 mm and a length of 2 m, and collects the film to be discharged to the outside by being attached to the screw 20 by floating on water during transportation by maintaining 60 rpm and 5 ° inclination. The tube 30 is installed on the upper right side,
On the lower right side of the screw 20, the screen 14 is installed so that the crushed matter having a particle size of less than 5mm falls with water and is separated from the crushed material having a 5-10 mm particle size,
In the lower part of the screen 14, a collecting well 40 for collecting particles of vinyl chloride resin of less than 5 mm and water dropped through the screen 14 is installed.
Recycling apparatus of vinyl chloride resin from the waste synthetic resin window frame, characterized in that it comprises a water tank (11) for circulating and reused water stored in the sump (40).


The apparatus of claim 1, wherein the shredder (10) is a spiral wet shredder having a rotary blade (60).

Removing foreign matters by collecting the waste synthetic resin window frame to remove foreign matters attached to the surface thereof;
Shredding step of making the waste synthetic resin window frame obtained in the step of removing the foreign matter together with water to form a shredded material having a particle size of 10 mm or less;
The shredded material having a particle size of 10 mm or less obtained in the shredding step is a screw 20 separating the polyethylene film and the vinyl chloride resin particles with a diameter of 150 mm and a length of 2 m. The polyethylene film and the vinyl chloride are maintained at 60 rpm and 5 ° inclination. A separation step of separating each other with resin particles;
Drying step of drying the vinyl chloride resin particles obtained in the separating step;
Recycling method of vinyl chloride resin from the waste synthetic resin window frame, characterized in that consisting of a step of obtaining to obtain the vinyl chloride resin particles obtained in the drying step.

The method of claim 3, wherein the crushing step is performed by spiral wet crushing having a rotary blade.
The method of claim 3 or 4, wherein the separating step separates the shredded material having a particle size of 5 to 10 mm into polyethylene film and vinyl chloride resin particles by the difference in specific gravity. .

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