KR101814348B1 - Synthetic resin scrap drying system for recycling - Google Patents

Abstract

The present invention relates to a dryer, and more specifically, to a recycling synthetic resin scrap dryer, which increases the drying efficiency by making the inside of a stirring tank uniformly forced to be dried by collision of Nasturtium officinales due to high-speed rotation stirring, heat generated during collision, and air uniformly dispersing the heat without using a separate heating means, so when the Nasturtium officinales, which are synthetic scraps washed with water after being collected for regeneration, are dried and pellet-molded with an extruder, it is possible to prevent defective products due to bubbles which are formed and burst in the pellets due to unremoved water.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a scrap drying system,

More particularly, the present invention relates to a drying system, and more particularly, to a drying system for drying a mollusk, which is a synthetic scrap washed with water after being collected for regeneration, to form pellets with a compressor, So that the inside of the stirring tank is uniformly forced to dry by the heat generated during the collision of the molluscs and the collision of the molluscs by the high-speed rotation and stirring, and the blowing which uniformly disperses the heat, without using a separate heating means And more particularly to a recycling synthetic resin scrap drying system for improving drying efficiency.

Countries lacking resources such as Korea have been constantly developing renewable facilities and recycling methods with an interest in methods and facilities for regenerating resources.

This regeneration concept not only solves the resource shortage problem, but also can be an alternative to solve environmental problems due to the recycling of waste water generated in various industrial fields.

In order to regenerate raw materials for various thermoplastic synthetic resin products including vinyls and plastics such as polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), polyvinylalcohol (PVA), and polyethylene terephthalate Is used for the production of recycled synthetic resin pellets, which is produced by extrusion molding and then cutting the waste resin to an appropriate size.

When the waste water collected in various industrial sites is collected and sent to a recycling factory, the waste water is ground in a crusher, crushed, and then washed to remove foreign matter from the crushed waste resin.

Then, the pulverized and washed wastes scrap (hereinafter referred to as "mullein") is put into an extrusion molding machine through dewatering and drying to be made into a pellet-shaped recycled raw material.

However, when dehydrated and dried mun liquor which has been crushed and washed, it is treated using hot air or a heater. As a result of treating a large amount of the mun liquor, not only the power consumption is excessive but also the part of the heater, The dry part of the pellet is not dried, but it is transported to the extruder while holding the moisture. As a result, the pellet surface of the pellet ruptures due to moisture vaporization during the extrusion process.

In addition, when dewatering, only the degree of squeezing can be handled by simply pressing the screw while feeding lightly, which reduces the dewatering efficiency, which is a major cause of poor drying in the course of drying through the dryer.

Korean Patent No. 10-1075585 (Oct. 14, 2011) 'Breaking, sorting and transferring method of recycled scrap for fabric sheet containing synthetic resin, and its crushing and sorting transfer device' Korean Registered Patent No. 10-1229089 (2013.01.28.) 'Waste water regeneration processor and extrusion molding apparatus of synthetic resin board using the same'

The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method for manufacturing a pellet, which is produced by pelletizing a water- It is possible to prevent the pellets from being blown and defective due to the occurrence of bubbles in the pellets, without using a separate heating means, simply by colliding with molluscs by high-speed rotation and stirring, The present invention also provides a recycling synthetic resin scrap drying system in which the interior of a drum is uniformly forced to dry to improve drying efficiency.

In order to achieve the above-mentioned object, the present invention provides a water treatment system comprising: a pretreatment apparatus 100 for separating water contained in water while rotating mucin (SCR), which is pulverized and washed wastepaper scrap; A first drier 300 for primarily drying mr liquor (SCR) fed through the first feeder 200, and a second drier 300 for drying the myrrh (SCR) A second dryer 400 for secondarily drying only the dried overflowed municipal primary dry municipal water through the first dryer 300 and a second feeder 500 for feeding and discharging only dried municipal overflowed secondarily dried mun ) For recycling synthetic resin scrap;

The preprocessor 100 includes a vertical frame 110, a horizontal frame 120 horizontally fixed to the lower end of the vertical frame 110, and an outer cylinder 120 fixed to the upper surface of the horizontal frame 120 An inner cylinder 140 provided in the outer cylinder 130 in the form of a double cylinder and having a plurality of mesh holes perforated on a bottom surface and a circumferential surface of the inner cylinder 140, A drain 160 for discharging the water drawn out from the bottom of the outer cylinder 130 and separated from the bottom of the outer cylinder 130, and a mollusk (SCR) pulverized into the inner cylinder 140 A sweepper 180 for rotating the inner cylinder 140 to compress the mucilage (SCR) to separate water from the water, A sweep motor 190 mounted on a lower surface of the outer cylinder 130 for rotating the sweepper 180, A water discharge pipe 142 extending through the outer cylinder 130 and a discharge pipe 142 extending in a triangular shape on the inner circumferential surface of the inner cylinder 140 at a point passing through the discharge pipe 142, And a protrusion 144 projecting from the protrusion 144;

The first dryer 300 includes a first drying frame 310 having a rectangular frame shape, a cylindrical first drying container 320 fixed to the upper surface of the first drying frame 310 with a gap therebetween, A first drying motor 330 fixed to an upper surface of the drying frame 310 and having a first motor shaft 332 and a first motor shaft 332 exposed through a bottom surface of the first drying container 320, A first drying blade 340 which is fixed on the first drying vessel 320 and a suction hole 340 which is capable of closing the open upper portion of the first drying vessel 320 and which is capable of inputting SCR from the first feeder 200, And a first cover (350) formed with a second cover (352);

The second dryer 400 includes a second drying frame 410 having a rectangular frame shape and a cylindrical second drying container 420 fixed on the upper surface of the second drying frame 410 with a space therebetween, A second drying motor 430 fixed to the upper surface of the drying frame 410 and having a second motor shaft 432 and a second motor shaft 432 exposed through the bottom surface of the second drying container 420, And a second cover (450) for sealing the open upper portion of the second drying container (420);

An overflow hole (322) is formed in a part of an upper circumference of the first drying container (320); The first drying blade 340 includes an arc-shaped blade frame 342 and a blade net 344 that fills an empty space of the blade frame 342; An inlet hole 422 communicating with the overflow hole 322 of the first drying container 320 is formed on an upper circumferential portion of the second drying container 420 so that the overflowed dry mucin (SCR) Receive; An outlet hole 424 is formed on the opposite side of the inlet hole 422 and a connection pipe 426 is connected to the outlet hole 424 to feed the second feeder 500; And the second drying blade 440 is formed in a plate shape rather than a mesh body.

An air charger 360 having a plurality of air injection nozzles 362 is further provided on a circumferential surface of the first drying container 320 opposite to the overflow hole 322. A lower surface of the air charger 360 And the air charger 360 is configured to be charged on the surface of the blade net 344 once every 10 rotations of the first drying blade 340 .

According to the present invention, in order to prevent the water from being completely removed when the mullein, which is a synthetic resin scrap after being collected for regeneration, is dried and the pellet is molded by a compressor, It is possible to obtain the effect of enhancing the drying efficiency by making the inside of the stirring vessel uniformly forced by the heat generated in the collision of the mullens by the high speed rotation stirring without using the heating means and the blowing which uniformly disperses the heat have.

1 is an exemplary configuration diagram of a recycling synthetic resin scrap drying system according to the present invention.
Fig. 2 is an illustration of a preprocessor constituting the drying system of Fig. 1; Fig.
Figure 3 is an exemplary top view of Figure 2;
Fig. 4 is an excerpt of an essential part of Fig. 2; Fig.
FIG. 5 is an exemplary view showing the installation structure of the first feeder installed in the storage tank and the mucilage of FIG. 1;
Fig. 6 is an excerpt of an example of the first dryer of Fig. 1; Fig.
FIG. 7 is an excerpt of an example of the second dryer of FIG. 1; FIG.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

1, the synthetic resin scrap drying system for regeneration according to the present invention comprises a preprocessor 100, a first feeder 200 for transferring the processed liquor through the preprocessor 100, A first dryer 300 for primarily drying the mulled water fed through the first feeder 200 and a second dryer 300 for drying only the dried mullel overflowed through the first dryer 300 A second drier 400 and a second feeder 500 for feeding and discharging only the dried material overflowed from the secondarily dried mull.

The drying system according to the present invention is characterized in that, after the dehydration process is completely proceeded through the preprocessor 100, a small amount of residual moisture remaining in the meringue is driven and dried by a high rotational stirring type, So that the product quality is improved.

2 to 4, the preprocessor 100 includes a vertical frame 110, a horizontal frame 120 horizontally fixed to the lower end of the vertical frame 110, An outer cylinder 130 fixed to the upper surface of the outer cylinder 130 with an interval therebetween, an inner cylinder 140 having a double cylinder shape inside the outer cylinder 130 and having a plurality of mesh holes perforated on the bottom surface and circumferential surface, A cover 160 for sealing the open top of the inner cylinder 140, a drain 160 for discharging the water drawn down from the bottom surface of the outer cylinder 130 and separated from the bottom of the inner cylinder 140, (140), a feed pipe (170) disposed through the cover (150) to feed crushed municipal water (SCR) into the inner cylinder (140) A sweepper 180 for separating the water from the water, a sweepper 180 installed on a lower surface of the outer cylinder 130 for rotating the sweepper 180, A mullion discharge pipe 142 installed to penetrate the inner cylinder 140 and the outer cylinder 130 and a discharge pipe 142 for discharging the molten metal from the discharge pipe 142, And a latching protrusion 144 protruding in a triangular shape on the inner circumferential surface of the inner cylinder 140 at a point passing through the protrusion 142.

At this time, the mauritian liquor (SCR) is crushed to a small size and then put in a state of being washed with water.

In addition, as shown in FIG. 3, the position of the end piping of the inlet pipe 170 should be a point passing through the discharge pipe 142, that is, a dropping point P, so that the sweeping efficiency is increased.

In addition, the inner cylinder 140 is a cylindrical member formed by perforating a plurality of holes on the circumferential surface and the bottom surface in an open state, and water separated from the SCR is discharged through the hole .

The inner cylinder 140 is installed in a cylindrical outer cylinder 130 having a diameter larger than that of the inner cylinder 140 so as to form a double cylinder as a whole. This is to increase the discharge efficiency after water separation.

Further, a drain 160 is formed on the bottom surface of the outer cylinder 130, and the water discharged through the drain 160 is separately collected and post-treated.

In addition, the open top of the cylindrical inner cylinder 140 is closed by the cover 150, and the inlet pipe 170 is installed through the cover 150.

A sweeping motor 190 is fixed to the bottom of the outer cylinder 130 and a motor shaft 192 of the sweeping motor 190 is connected to the outer cylinder 130 and the cylindrical inner cylinder 130. [ The sweep fur 180 is firmly fixed to the end of the motor shaft 192 exposed at the bottom of the inner cylinder 140 and protruding from the bottom surface of the inner cylinder 140, do.

4, the sweepper 180 includes a sweeping portion 182 made of urethane, a pair of elastic plates 184 fixed to a part of the length of the sweeping portion 182, A spring 186 for elastically fixing the pair of elastic plates 184 and a reinforcing fixing plate 183 fixed to one side surface of the end portion of the sweeping portion 182 to bind the sweeping portion 182 to the motor shaft 192. [ (188).

Particularly, the end of the sweeping portion 182, which is in contact with the inner wall surface of the cylindrical inner cylinder 140, in the direction of the rotation direction is tapered (T) so as to sweep smoothly when sweeping.

The spring 186 is preferably a kind of torsion spring and the spring 186 is required because when the sweepper 180 is caught by the protrusion 144 protruding in the shape of a triangle, (184) so as to be able to ride on it.

A water discharge pipe 142 extends in a tangential direction to a part of the circumference of the cylindrical inner cylinder 140 and a water storage tank B is provided below the water discharge pipe 142 (SCR) in which water is separated.

In addition, since the locking protrusion 144 is integrally formed with the inner cylinder 140 and the sweepper 180 is made of a urethane material, when the locking protrusion 144 and the sweepper 180 are in contact with each other, 180 are slightly elastically deformed, and they are kneaded while being kneaded. Thus, it is possible to smoothly induce the discharge of the mr. (SCR) pretreated.

The pair of resilient plates 184 and the spring 186 return the resiliently deformed sweep pawl 180 to its original position as soon as the sweep pawl 180 passes by sweeping the pawl protrusion 144 useful.

As described above, since the sweepper 180 is rotated in a state in which the sweepper 180 is in contact with the inner diameter of the inner cylinder 140, a plurality of mucin (SCR) The separated water is discharged to the outer cylinder 130 through a plurality of perforated holes and some squeezed SCRs are caught by the stopper 144 and the mull air is discharged through the discharge pipe 142 do.

In this process, much of the water is dehydrated.

Meanwhile, the first feeder 200 is a kind of screw conveyor. As shown in FIGS. 1 and 5, mucilage is disposed obliquely through one side of the storage tank B.

The first feeder 200 includes a feeder housing 210, a screw feeder 220 rotated in the feeder housing 210, and a feeder motor M for rotating the screw feeder 220 .

A plurality of drain holes 212 are formed in the inclined lower end surface of the feeder housing 210 so that the moisture generated by squeezing when the screw feeder 220 feeds the molten metal is stored in the bottom surface of the storage tank B As shown in FIG.

In addition, an inflow hole 214, through which the mucilage is exposed to the inside of the storage tank B, is formed in a part of the lower end of the feeder housing 210.

In this case, in order to smoothly introduce mucilage (SCR) into the inflow hole 214, a swash plate 230 is installed on the bottom surface of the storage tank B, And a discharge solenoid valve 250 is installed on the discharge water pipe 240 to discharge the collected water to the outside if necessary.

In addition, the screw feeder 220 is not a simple shape, but the screw from the lower end to the fourth screw is formed with the same size and pitch, and thereafter the size (radius) gradually decreases from the fifth screw, As shown in FIG.

Particularly, a semicircular dam 216 protruding from the inner circumferential surface of the feeder housing 210 is formed on the space between the screws up to the fourth screw so as to be pressed and squeezed when the mucilage (SCR) So that it is possible to remove even a trace amount of moisture.

In order to further enhance the water removal efficiency of the moulting line (SCR), an ultrasonic vibrator 260 is further provided on one side of the inner wall of the storage tank B so that the moulting is provided with an ultrasonic wave inside the storage tank B Mucilage (SCR) may be shaken strongly to facilitate water shaking.

In addition, the swash plate 230 may be implemented as a reticle type belt conveyor.

In other words, if the belts rotated in an endless track form are formed as a mesh, and the web is made of a mesh having a mesh smaller than that of the SCR, and the web is rotated to receive the power, So that the moisture can be removed.

Of course, this reticulated belt conveyor must be compact.

6, the first dryer 300 includes a first drying frame 310 having a rectangular frame shape and a second drying frame 310 having a first cylindrical shape fixed at intervals on the upper surface of the first drying frame 310, A first drying motor 330 fixed to the upper surface of the first drying frame 310 and having a first motor shaft 332; A first drying blade 340 fixed on the first motor shaft 332 that is exposed through the first drying vessel 320 and a second drying blade 340 which is fixed on the first motor shaft 332 exposed through the first drying vessel 320, And a first cover 350 formed with a draw-in hole 352 through which the SCR can be inserted.

At this time, an overflow hole 322 is formed in a part of the upper circumference of the first drying container 320, and the overflow hole 322 is formed in the overflow hole 322, (SCR) is a kind of vent hole for allowing a part to overflow.

As a result, the mucel liquor (SCR), which is completely liquefied and lighter, flows over and overflows, and the muchen juice remaining in water can not easily rise due to the weight of water. It can be considered as the first structures close to completely dry.

More specifically, an air charger 360 having a plurality of air jet nozzles 362 is provided on a peripheral portion of the first drying container 320, preferably on the opposite peripheral surface of the overflow hole 322, The lower surface of the charger 360 is connected to an air supply pipe 364 through which compressed air is supplied from a compressed air supply (not shown) and injected into the air charger 360.

A plurality of the air injection nozzles 362 are arranged in a vertical grid pattern, and nozzle tips are disposed through the first drying container 320 and exposed to the inside.

In addition, the first drying blade 340 includes an arc-shaped blade frame 342 and a blade net 344 that fills an empty space of the blade frame 342.

Accordingly, when the air charger 360 charges the high-pressure air through the air injection nozzle 362, the first drying blade 340 is charged once every 10 rotations, and the blade net 344 is charged by air It is preferable to constitute such that it is accurately charged towards the blade net 344 when it comes to the injection nozzle 362. [

This is because the air charge can be accurately calculated by considering the number of revolutions. Accurate air charging can be performed toward a large number of mullions (SCR) that the blade collar 344 pushes through the air charging, It is possible to completely shake off a trace amount of residual moisture.

In addition, the first drying blade 340 rotates at a high speed, thereby causing mucilage (SCR) to collide with each other, thereby generating heat, thereby effecting self-moisture evaporation.

Therefore, no separate heating equipment is required in the present invention.

7, the second dryer 400 includes a second drying frame 410 having a rectangular frame shape and a cylindrical second drying frame 410 spaced apart from the upper surface of the second drying frame 410 A second drying motor 430 fixed to the upper surface of the second drying frame 410 and having a second motor shaft 432; A second drying blade 440 fixed on the exposed first motor shaft 432 and a second cover 450 sealing the opened upper portion of the second drying container 420.

At this time, an inlet hole 422 communicating with the overflow hole 322 of the first drying container 320 is formed in an upper circumferential portion of the second drying container 420 so that the overflowed dry mucin (SCR) As shown in FIG.

An outlet hole 424 is formed on the opposite side of the inlet hole 422 and a connection pipe 426 is connected to the outlet hole 424 for feeding the second feeder 500.

Unlike the first drying blade 340, the second drying blade 440 is formed as a plate rather than a mesh.

This is because the mulligans (SCR) entering the second dryer 400 is almost completely dried, so that the efficiency of feeding the second feeder 500 by raising the lifting force while finishing the drying is increased.

In addition, the second feeder 500 may be regarded as a simple cylindrical screw conveyor.

As described above, the drying system according to the present invention is a system in which the muller liquor (SCR) introduced into the preprocessor 100 containing water is poured into the first feeder 200 after removing moisture with a rotary compression method using centrifugal force Add more than 90% to remove moisture.

In this state, the mucilage (SCR) injected into the first dryer (300) is cyclically blown in the first dryer (300) at high speed, while the mucilage (SCR) (SCR) to the nearest dryness to moisture.

In this way, the drying process is almost completed. In order to make the drying process more complete, the drying process is transferred to the second dryer 400 in an overflow manner, and then dried in a high-speed rotation striking mode. Thus, defects in air bubbles .

100: preprocessor
200: first feeder
300: First dryer
400: Second dryer
500: second feeder

Claims (2)

A preprocessor 100 for separating the water contained in the municipal water while rotating the municipal water (SCR), which is a pulverized and washed wastepaper scrap, and a first feeder (SCR) A first dryer 300 for primarily drying mucus liquor (SCR) fed through the first feeder 200, and a second drier 300 for drying the first dried mungbean liquor And a second feeder (500) for feeding and discharging only the dried material overflowed from the secondarily dried mucin, the system comprising: a first dryer (400) for drying only the flowed dried material;
The preprocessor 100 includes a vertical frame 110, a horizontal frame 120 horizontally fixed to the lower end of the vertical frame 110, and an outer cylinder 120 fixed to the upper surface of the horizontal frame 120 An inner cylinder 140 provided in the outer cylinder 130 in the form of a double cylinder and having a plurality of mesh holes perforated on a bottom surface and a circumferential surface of the inner cylinder 140, A drain 160 for discharging the water drawn out from the bottom of the outer cylinder 130 and separated from the bottom of the outer cylinder 130, and a mollusk (SCR) pulverized into the inner cylinder 140 A sweepper 180 for rotating the inner cylinder 140 to compress the mucilage (SCR) to separate water from the water, A sweep motor 190 mounted on a lower surface of the outer cylinder 130 for rotating the sweepper 180, A water discharge pipe 142 extending through the outer cylinder 130 and a discharge pipe 142 extending in a triangular shape on the inner circumferential surface of the inner cylinder 140 at a point passing through the discharge pipe 142, And a protrusion 144 projecting from the protrusion 144;
The first dryer 300 includes a first drying frame 310 having a rectangular frame shape, a cylindrical first drying container 320 fixed to the upper surface of the first drying frame 310 with a gap therebetween, A first drying motor 330 fixed to an upper surface of the drying frame 310 and having a first motor shaft 332 and a first motor shaft 332 exposed through a bottom surface of the first drying container 320, A first drying blade 340 which is fixed on the first drying vessel 320 and a suction hole 340 which is capable of closing the open upper portion of the first drying vessel 320 and which is capable of inputting SCR from the first feeder 200, And a first cover (350) formed with a second cover (352);
The second dryer 400 includes a second drying frame 410 having a rectangular frame shape and a cylindrical second drying container 420 fixed on the upper surface of the second drying frame 410 with a space therebetween, A second drying motor 430 fixed to the upper surface of the drying frame 410 and having a second motor shaft 432 and a second motor shaft 432 exposed through the bottom surface of the second drying container 420, And a second cover (450) for sealing the open upper portion of the second drying container (420);
An overflow hole (322) is formed in a part of an upper circumference of the first drying container (320); The first drying blade 340 includes an arc-shaped blade frame 342 and a blade net 344 that fills an empty space of the blade frame 342; An inlet hole 422 communicating with the overflow hole 322 of the first drying container 320 is formed on an upper circumferential portion of the second drying container 420 so that the overflowed dry mucin (SCR) Receive; An outlet hole 424 is formed on the side opposite to the inlet hole 422 and a connection pipe 426 is connected to the outlet hole 424 so as to be fed to the second feeder 500; Wherein the second drying blade (440) is formed in a plate shape rather than a mesh.
The method according to claim 1,
An air charger 360 having a plurality of air injection nozzles 362 is further provided on the circumferential surface of the first drying container 320 opposite to the overflow hole 322. Air And the air charger 360 is configured to charge the surface of the blade net 344 once each time the first drying blade 340 rotates 10 times. Drying system.

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