KR101134405B1 - System for scrap synthetic resins - Google Patents

Abstract

The present invention is a crushing step of the process of granulating, homogenizing the solid waste to a small size; A washing step of washing and crushing the waste delivered from the crushing step; A dehydration step of removing material moisture discharged from the washing step; And a compression process of compressing the waste synthetic resin that has undergone the dehydration process and molding the waste synthetic resin into a predetermined shape. The washing process includes an inlet through which waste synthetic resin is input at an upper side, and a waste synthetic resin at an upper side of the waste synthetic resin. The main body formed with the waste synthetic resin discharge port is discharged; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a washing and pulverizing apparatus including a porous plate having both ends coupled to the inner sidewall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum.

 Waste Synthetic Resin, Washing Equipment, Complex Treatment Equipment, Treatment System

Description

Waste synthetic resin processing equipment {SYSTEM FOR SCRAP SYNTHETIC RESINS}

The present invention relates to a waste synthetic resin processing apparatus, and more particularly, to a waste synthetic resin processing apparatus capable of pre-treating crushing, washing and dehydration in a pre-treatment of the collected waste synthetic resin.

In general, pellets, which are solid fuels, are produced after the waste synthetic resin (waste vinyl, etc.) is subjected to pre-processing processes such as crushing, washing, dehydration, and melt extrusion.

However, in the conventional pellet pretreatment process, waste synthetic resins (waste vinyl, etc.) due to problems such as increase of site use, increase of management personnel, and maintenance of individual devices are performed by crushing, washing, and dehydrating processes through each individual device. ), The efficiency of the work is low.

In addition, the amount of water used to remove the contaminants and sediments on the waste synthetic resin (waste vinyl, etc.) is large, but there is a problem in that the quality of the pellets is lowered due to low washing efficiency due to the removal of the contaminants and the sediments.

Therefore, the use of an individual device to treat waste synthetic resins (waste vinyl, etc.) has a problem that the added value of the waste synthetic resins produced as pellets (PELLET) is expensive, while its added value is not large.

Therefore, the present invention is to solve the above-mentioned problems, to perform the crushing, washing, dehydration process of waste synthetic resin (waste vinyl, etc.) as a single complex device for efficient production of pellets, and effectively separates the contaminant and soil The aim is to provide an economical and efficient waste synthetic resin treatment system.

In order to achieve the above object, the present invention

A crushing process of refining and homogenizing the solid waste to a small size;

A washing step of washing and crushing the waste delivered from the crushing step;

A dehydration step of removing material moisture discharged from the washing step; And

In the waste synthetic resin processing apparatus comprising a compression step of compressing the waste synthetic resin subjected to the dehydration process to form a predetermined shape,

The washing process includes a main body formed with an inlet through which waste synthetic resin is input at one side of the upper side, and a waste synthetic resin outlet through which waste synthetic resin is discharged at an upper side of the side; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a washing and pulverizing apparatus including a porous plate having both ends coupled to the inner side wall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum.

In order to achieve the above object, the present invention

A crushing process of refining and homogenizing the solid waste to a small size;

A washing step of washing and crushing the waste delivered from the crushing step;

A dehydration step of removing material moisture discharged from the washing step; And

In the waste synthetic resin processing apparatus comprising the step of melting and then extruding and molding the waste synthetic resin passed through the dehydration process,

The washing process includes a main body formed with an inlet through which waste synthetic resin is input at one side of the upper side, and a waste synthetic resin outlet through which waste synthetic resin is discharged at an upper side of the side; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a washing and pulverizing apparatus including a porous plate having both ends coupled to the inner side wall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum.

According to the present invention, the pre-treatment of waste synthetic resin can be processed in a batch, crushing, washing, dehydration and compression process can reduce the installation cost of equipment, site usage and maintenance costs. In addition, the washing and pulverizing device in the waste synthetic resin processing system is discharged to the outside by the porous plate provided at a predetermined interval from the drum rotating inside the main body, and only the waste synthetic resin is present in the main body, so the washing efficiency is improved. Since it improves, the quality of waste synthetic resin pellets can be improved.

Hereinafter, the waste synthetic resin processing apparatus according to an embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1A illustrates a process of producing fluff by treating waste synthetic resin according to an embodiment of the present invention. Referring to Figure 1a, the waste synthetic resin of the present invention is produced in the form of fluff 15 through the shredding (10), quantitative supply (11), washing (12), dehydration (13) and compression process (14).

The present invention is a crushing step of the process of granulating, homogenizing the solid waste to a small size; A washing step of washing and crushing the waste delivered from the crushing step; A dehydration step of removing material moisture discharged from the washing step; And it provides a waste synthetic resin processing apparatus comprising a compression process for compressing the waste synthetic resin subjected to the dehydration process to form a predetermined shape.

Figure 1b shows a flow chart of the waste synthetic resin processing system for producing in a fluff form according to an embodiment of the present invention. That is, the process of producing fluff through crushing, washing | cleaning, dehydration, and a compression process is shown.

The shredding process is a physical process of the shredding process, which generally reduces the volume of solid waste, facilitates the subsequent processing such as transportation, incineration, pyrolysis, compression and magnet screening, and transforms it into economically available shapes and sizes. It consists of the process of refining and homogenizing large wastes. In the crushing step, it is preferable that the pulverization and compression are performed in combination.

The equipment of the crushing process is to crush the incoming solid waste in units of about 100 to 150 mm in diameter. The target waste is put in a certain amount into the upper hopper, and is crushed to a predetermined size by a blade of a two-axis rotating type of red primary. The primary crushed crushed material is crushed on a regular interval of blades provided on one axial axis, meeting one axial axis rotating at a high speed in the lower part. Shredded shreds of about 100 to 150 mm are dropped through the outlet opening in front of the shredding equipment.

The washing process includes an inlet through which waste synthetic resin is input at one side of the upper portion, and a waste synthetic resin outlet through which the waste synthetic resin is discharged at the upper side thereof; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a porous plate having both ends coupled to the inner side wall of the main body at a predetermined distance from the drum to correspond to the outer peripheral surface shape of the drum.

Detailed configuration of the cleaning device will be described later.

Next, a dehydration process is performed to remove moisture present in the waste synthetic resin material discharged from the washing process. In the dehydration process, holes of a certain size are formed in a perforated plate-shaped tube to discharge foreign substances generated between rotations of moisture and foreign substances between the holes. Waste synthetic resin washed and first dehydrated by the washing process is transferred to a conveyor and transferred to a hopper installed on the upper side of the dehydrator. The injected waste synthetic resin is loaded on a screw shaft which rotates at a high speed of 800 -1,000 rpm inside the dehydrator and is transferred to the discharge unit installed on the opposite side of the dehydrator. In the process of transport, the water and some foreign matters contained in the waste synthetic resin move to the outside of the cylinder by centrifugal force and at the same time, the water and foreign substances are discharged to the hole perforated in the cylinder, and the separated water and foreign substances are discharged to the outside through the lower guide groove. .

Next, the waste synthetic resin that has undergone the dehydration process is subjected to a compression process that is compressed and molded into a predetermined shape. The target material is compressed to remove moisture contained therein and manufactured in the form of a compressed package. The waste synthetic resin, which has undergone the dehydration process, is transferred to an input hopper installed at the top of the compressor. The conveyed waste resin is stacked in the space under the hopper and is continuously pushed back and forth into the cylinder. In the process of compressing the resins compressed in the space, some water is discharged through the lower mesh and transferred to the outlet in a continuous process. In the process of being compressed and conveyed, the two-stage cylinder unit installed on the discharge side reduces the area of the outlet step by step to make the waste synthetic resin product harder little by little. The final compacted fluff waste plastic mass is placed on the discharge plate through the outlet and transported to storage using heavy equipment such as a forklift truck.

According to the waste synthetic resin processing apparatus of the present invention, in processing waste synthetic resin, crushing, washing, dehydration and compression processes can be collectively processed in a single system, thereby reducing the installation cost of the device, land use and maintenance costs. It works.

According to the present invention, one or more processes may be further added or modified according to the end use of the waste synthetic resin.

Figure 2a shows a process for producing pellets by treating the waste synthetic resin according to an embodiment of the present invention. Referring to FIG. 2A, the waste synthetic resin, which has undergone the process shown in FIG. 1A, is pelleted by melting 18, forming 19, cooling 21, cutting and conveying 25, and storing and packaging 26. 27). Therefore, in order to produce pellets according to an embodiment of the present invention, after the first process, the secondary processing process including melting, molding, cooling, cutting, conveying, storing, and packaging processes is further performed. Figure 2b shows a flow chart of the waste synthetic resin processing system for producing pellets according to an embodiment of the present invention. Referring to FIG. 2B, pellets may be manufactured by crushing, washing, dehydrating, compressing, melting, forming, cooling, cutting, transferring, storing, and packaging processes.

Figure 3a shows a process for producing waste plastic solid fuel (RPF) by treating the waste synthetic resin according to an embodiment of the present invention. Referring to FIG. 3A, the waste synthetic resin of the present invention may be manufactured in the form of waste plastic solid fuel (RPF) through a melt extrusion 18 and an extrusion molding 19 process. Prior to the melt extrusion 18 process, it is subjected to the shredding 10, the metering feed 11, the washing 12, and the dehydration 13 as shown in FIG. 1A.

According to another embodiment of the present invention, the crushing step of the process of granulating, homogenizing the solid waste to a small size; A washing step of washing and crushing the waste delivered from the crushing step; A dehydration step of removing material moisture discharged from the washing step; And a step of melting and then extruding and molding the waste synthetic resin that has undergone the dehydration process, wherein the washing process includes an inlet through which waste synthetic resin is input at one upper side, and waste synthetic resin at the upper side of the waste synthetic resin. A main body having a discharged waste synthetic resin discharge port formed therein; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a washing and pulverizing apparatus including a porous plate having both ends coupled to the inner side wall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum.

Figure 3b shows a flow chart of the waste synthetic resin processing system for producing waste plastic solid fuel according to an embodiment of the present invention. Referring to FIG. 3B, waste plastic solid fuel may be manufactured through a crushing, washing, dehydration, compression, melt extrusion, and extrusion process.

The production process of waste plastic solid fuel (RPF) is different in that the shredding, washing, and dehydration processes are the same in the production process of fluff and pellets, and the melt extrusion and extrusion process are performed after the dehydration process. In this way, the waste synthetic resin can be processed into a system modified in various forms to suit the end use of the user.

Hereinafter, with reference to the drawings will be described in detail the washing apparatus used in the washing process of the present invention.

Figure 4 is a perspective view of a washing apparatus according to an embodiment of the present invention, Figure 5 is a longitudinal sectional view of the washing apparatus shown in Figure 4, Figure 6 is a partial perspective view of the contaminant outlet of the washing apparatus shown in FIG.

4 to 6, the washing apparatus 10 according to an embodiment of the present invention is formed in the inlet 110 for the waste synthetic resin is injected into the upper one side, the waste synthetic resin outlet for discharging the waste synthetic resin on the upper side ( 120 is a cylindrical drum which is connected to the main body 100 is formed protruding, the inside of the main body 100, the rotary shaft 22 is rotated by receiving a driving force from the motor 20 installed on one side of the main body 100 140 and a plurality of blades 142 installed surrounding the outer circumferential surface of the drum 140 and crushing the waste synthetic resin introduced from the inlet 110, and provided on the upper side of the main body 100 to wash water. Washing means 160 for supplying the water inside the main body, provided on one side of the main body 100, washing water outlet 180 for discharging the washing water supplied to the inside of the main body 100 from the washing means 160 and On the outer peripheral surface shape of the drum 140 Correspondingly, a perforated plate 200 having both ends coupled to the inner sidewall of the main body 100 is spaced a predetermined distance from the drum 140.

The main body 100 is to form a housing of the waste synthetic resin processing apparatus according to the present invention, the upper side of the main body 100 to the shredding material such as waste synthetic resin or waste vinyl conveyed by the first conveyor 30 to be described later Inlet 110 for injecting is formed, the waste synthetic resin outlet 120 for discharging the waste synthetic resin after the pre-treatment process in the main body 100 is formed in the upper side.

The inlet 110 is projected upward on the upper side of the main body 100, the waste synthetic resin transferred through the first conveyor 30 is provided on the upper side of the main body 100 to enable the vertical fall into the main body 100 do. The outlet 120 is formed to protrude on the upper side in the longitudinal direction of the main body 100, one side is open, the upper surface is predetermined downward to facilitate the discharge of the waste synthetic resin discharged by the centrifugal force of the drum 140 to be described later Has an inclination angle. Here, it is preferable that one side of the waste synthetic resin outlet 120 is provided with a second conveyor 40 for transporting the waste synthetic resin having completed the pretreatment process inside the main body 100 to the outside.

At this time, a discharge blade 122 and a fixed blade 132 having an inclination of about 10 ° is installed at the point where the discharge of the waste synthetic resin outlet 120 is started. The fixed blade 132 is installed at a narrow interval with the blade 142 of the drum 140, the discharge blade 122 is rotated along the outer peripheral surface of the drum 140 on one side of the fixed blade 132 The waste synthetic resin is first crushed on the fixed blade 132 so that the waste synthetic resin does not accumulate in the outlet 120 so that the waste synthetic resin is discharged. The fixed blade 132 and the discharge blade 122 is preferably to prevent the phenomenon caught in the interior of the main body (100).

The drum 140 has a cylindrical shape and is supported by a rotating shaft 22 installed therein along the longitudinal direction of the main body 100, and the drum 140 also rotates when the rotating shaft 22 rotates. do. At this time, the rotation speed of the drum 140 is rotated to 400 ~ 600 RPM. Therefore, since the drum rotates at a high speed of 400 to 600 RPM, dehydration of the waste synthetic resin located on the outer circumferential surface of the drum 140 is performed.

The blade 142 breaks the waste synthetic resin introduced into the main body 100, and a plurality of blades 142 are provided on the outer circumferential surface of the drum 140 at predetermined intervals. Here, each blade 142 has a predetermined maximum height 144 and the minimum height 146, the shape of the height from the predetermined maximum height 144 to the minimum height 146 It is a shape that gradually decreases. At this time, the waste synthetic resin introduced into the main body 100 is crushed by being caught by the maximum height 144.

The washing means 160 has a plurality of water supply pipes (162, 164, 166) are installed in parallel to each other in the upper left, right and center of the main body 100, one side of the water supply pipes (162, 164 166) A plurality of nozzles 168 are installed to spray the washing water inside the 100. Here, it is preferable that there are at least six nozzles 168 provided in the left and right water supply pipes 164 and 166 and at least five nozzles 168 provided in the central water supply pipe 162. In addition, it is preferable that a valve 170 is provided at one side of the nozzle 168 so as to supply and block the washing water in the main body 100.

Both ends of the porous plate 200 are coupled to the inner sidewall of the main body 100 by a predetermined distance from the drum 140 to correspond to the outer circumferential surface shape of the drum 140, and the porous plate 200 is formed on a surface thereof. A plurality of holes 202 having a size are formed, and the holes 202 pass through the washing process, and the soil and soil separated from the surface of the waste synthetic resin pass through the waste synthetic resin. In addition, the gap between the porous plate 200 and the maximum height portion 144 of the blade 142 is to catch the contaminants and crushed waste synthetic resin that did not pass through the porous plate 200. Therefore, the contaminants and soils present on the surface of the waste synthetic resin are washed through a washing process to pass through the porous plate 200 and discharged to the outside together with the washing water through the washing water outlet 180 described later, and passes through the porous plate 200. Fragile and crushed waste synthetic resin that is not retained in the main body 100 is caught in the maximum height 144 of the blade 142 formed on the outer circumferential surface of the rotating drum 140 along the longitudinal direction of the drum 140 Keep moving.

The washing water outlet 180 is provided at a lower portion of one side of the main body 100 in the longitudinal direction, and discharges the washing water, the contaminants, and the soil discharged from the porous plate 200 to the outside. Here, the washing water discharged through the washing water outlet 180 is preferably stored and reused after being transferred to a washing water circulation tank (not shown).

Referring to the process of the waste synthetic resin processing system according to an embodiment of the present invention configured as described above are as follows.

First, when the collected waste synthetic resin (waste vinyl, etc.) is introduced into the main body 100 through the inlet 110 provided on the upper side of the main body 100, the waste synthetic resin transferred from the first conveyor 30, at this time, the main body The waste synthetic resin introduced through the inlet 110 is crushed by the blade 142 provided on the outer circumferential surface of the drum 140 rotating in the interior, and the crushed waste synthetic resin of the drum 140 rotates. It moves toward the waste synthetic resin outlet 120 along the longitudinal direction.

In addition, the washing water is supplied to the inside of the main body 100 by the washing means 160 provided on the upper side of the main body 100 to remove impurities and earth and sand existing on the surface of the waste synthetic resin, and by the washing means 160. Soil and soil removed from the surface of the waste synthetic resin is discharged to the outside through the washing water outlet 180 through the porous plate 200 is coupled to both ends of the inner side wall of the main body 100 is installed.

Here, the waste synthetic resin that does not pass through the porous plate 200 continues to move along the longitudinal direction of the drum 140 as the drum 140 rotates continuously.

Meanwhile, the waste synthetic resin continuously moving along the longitudinal direction of the drum 140 rotates together with the drum 140. Therefore, the waste synthetic resin having completed the crushing and washing process is dehydrated by the centrifugal force of the rotating drum 140 and is discharged through the waste synthetic resin outlet 120.

In this case, the contaminants that do not pass through the porous plate 200 are discharged through the contaminant discharge port 190 installed at one side of the main body 100 to be adjacent to the waste synthetic resin discharge port 120. Therefore, the waste synthetic resin introduced into the main body 100 through the inlet 110 is crushed by a plurality of blades 142 formed on the outer circumferential surface of the drum 140 rotating in the main body 100, and the main body 100. Cleaning process is performed by the washing means 160 installed on the upper side of the).

In addition, since the crushed waste synthetic resin rotates inside the main body 100 together with the drum 140, a dehydration process is performed by rotating centrifugal force of the drum 140, and discharged to the outside through the waste synthetic resin outlet 120. do.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention It can be understood that it is possible.

1A and 1B illustrate a production process of fluff according to an embodiment of the present invention.

2A and 2B illustrate a production process of pellets according to an embodiment of the present invention.

3A and 3B illustrate a production process of an RPF according to an embodiment of the present invention.

Figure 4 shows a perspective view of the washing apparatus of the waste synthetic resin treatment system according to an embodiment of the present invention.

Figure 5 shows a longitudinal cross-sectional view of the washing apparatus shown in FIG.

FIG. 6 shows a partial perspective view of the contaminant discharge port of the washing apparatus shown in FIG. 4.

<Description of reference numerals for the main parts of the drawings>

20: motor 22: rotating shaft

30: first conveyor 40: second conveyor

100: main body 110: inlet

120: waste synthetic resin outlet 122: discharge blade

132: fixed blade 140: drum blade 142: blade 144: maximum height

146: minimum height 160: cleaning means

170: valve 180: wash water outlet

190: contaminant outlet 200: porous plate

Claims (6)

A crushing process of refining and homogenizing the solid waste to a small size; A washing step of washing and crushing the waste delivered from the crushing step; A dehydration step of removing material moisture discharged from the washing step; And In the waste synthetic resin processing apparatus comprising a compression step of compressing the waste synthetic resin subjected to the dehydration process to form a predetermined shape, The washing process includes a main body formed with an inlet through which waste synthetic resin is input at one side of the upper side, and a waste synthetic resin outlet through which waste synthetic resin is discharged at an upper side of the side; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a porous plate having both ends coupled to the inner sidewall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum. The blade is provided in plurality in the longitudinal direction of the drum, the blade has a predetermined maximum height and minimum height, characterized in that the height is formed in a shape that gradually decreases from the predetermined maximum height to the minimum height. Waste synthetic resin processing apparatus. The waste synthetic resin processing apparatus of claim 1, further comprising melting, cooling, cutting, and transporting the waste synthetic resin that has undergone the compression process. A crushing process of refining and homogenizing the solid waste to a small size; A washing step of washing and crushing the waste delivered from the crushing step; A dehydration step of removing material moisture discharged from the washing step; And In the waste synthetic resin processing apparatus comprising the step of melting and then extruding and molding the waste synthetic resin passed through the dehydration process, The washing process includes a main body formed with an inlet through which waste synthetic resin is input at one side of the upper side, and a waste synthetic resin outlet through which waste synthetic resin is discharged at an upper side of the side; A cylindrical drum installed inside the main body and connected to a rotating shaft that receives a driving force from a motor installed at one side of the main body and rotates; A plurality of blades installed around the outer circumferential surface of the drum and crushing the waste synthetic resin introduced from the inlet; Washing means provided on an upper side of the main body to supply washing water into the main body; A washing water outlet provided at one side of the main body and discharging the washing water supplied to the inside of the main body from the washing means; And a porous plate having both ends coupled to the inner sidewall of the main body at a predetermined distance from the drum to correspond to the outer circumferential surface shape of the drum. The blade is provided in plurality in the longitudinal direction of the drum, the blade has a predetermined maximum height and minimum height, characterized in that the height is formed in a shape that gradually decreases from the predetermined maximum height to the minimum height. Waste synthetic resin processing apparatus. According to claim 1 or claim 3, The washing means is a plurality of water supply pipes are installed in parallel to each other on the upper side of the main body, a plurality of nozzles are installed on one side of the water supply pipe so as to spray the washing water inside the main body; And at least five nozzles installed in the water supply pipe. According to claim 1 or 3, wherein the waste synthetic resin outlet is formed protruding on one side of the main body, the discharge starting point of the outlet characterized in that it comprises a discharge blade which is spaced apart from the blade of the drum at a predetermined interval. Waste synthetic resin processing apparatus. delete

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