KR20100113754A - A minute plastic scrap of recycling refregerator sorting device - Google Patents

Abstract

PURPOSE: A minute plastic scrap selecting device of waste refrigerator is provided to improve the selection ability of plastic and urethane so that it enhances the recycling rate of a plastic, thereby the device has a advantage of generating the opportunity cost according to the re-sourced. CONSTITUTION: A minute plastic scrap selecting device of waste refrigerator includes a hopper(110), a guide plate(120), a first damper(130), a breaker(140), a plastic exhaust line(150), a valve(160). The hopper provides the space which plastic scrap and urethane scrap are divided grinded in the grinder. The guide plate guides the drop direction of plastic-urethane scrap flown into the hopper. The first damper guides the external air flown inside the hopper. The breaker shields the airflow so that plastic-urethane scrap which is dropped according to the guide plate not to be scattered as much as constant direction. The plastic exhaust line guides the plastic scrap to drop to the lower part of the hopper to be exhausted to outside of the hopper. The valve is installed on one side of the plastic exhaust pipe and hopper so that the inside air is not flown in.

Description

A minute plastic scrap of recycling refregerator sorting device

1 is a real picture showing a plastic-urethane scrap in which a portion of the plastic scrap is removed by a conventional method.

Figure 2 is a block diagram showing a preferred embodiment of the fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

Figure 3 is a block diagram showing a detailed configuration of the fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

Figure 4 is a flow chart illustrating a process for sorting plastic scrap using a fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

Figure 5 is a urethane scrap physical picture of the plastic scrap is removed by using a fine plastic scrap sorting device of the waste refrigerator according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Plastic scrap sorting device 102. Guide tube

110. Hopper 120. Information board

130. First damper 140. Breaker

141.Cylinder 142. Blocker

150. Plastic outlet pipe 160. Valve

170. Second damper 200. Inhaler

220. Suction line 240. Storage

300. Means of transport

The present invention relates to a fine plastic scrap sorting apparatus of a waste refrigerator for sorting fine plastics in a urethane scrap from which iron-non-ferrous scrap and a portion of plastic scrap are removed from a pulverized product of a waste refrigerator.

In general, the refrigerator has a triple structure for insulation. That is, the refrigerator has an outer box in which the iron plate of the plate is bent and processed a plurality of times so as to form an outer appearance, and an inner box made of a plastic material which is coupled to maintain a predetermined distance from the box and forms a storage compartment therein, and foamed between the inner box and the box. It comprises a heat insulation wall of the urethane to be molded.

And, when the refrigerator reaches the end of its life, it will separate and recycle the metal forming the trauma.

However, conventionally, after recycling the waste refrigerator, the plastic-scrap from which the metal was separated was sorted out, and only the relatively large plastic scrap was sorted and recycled.

That is, a large plastic screened scrap contains fine plastics as shown in FIG. 1, and these fine plastics were incinerated and difficult to sort from urethane.

Therefore, the urethane in which the plastic remains is time-consuming and expensive at incineration, which increases the waste disposal cost, which is not preferable from an economical point of view.

In addition, there is a problem that causes environmental pollution due to the smoke generated during incineration.

In addition, since this method ultimately disposes of recyclable plastics, it is undesirable to lose the opportunity cost that may be incurred in recycling the plastics.

An object of the present invention for solving the conventional problems as described above, the fine plastic contained in the urethane scrap from which the iron-non-ferrous scrap and some of the plastic scrap is removed from the pulverized crushed waste refrigerator to recycle the plastic The present invention provides a fine plastic scrap sorting device for a waste refrigerator.

Another object of the present invention is to provide a fine plastic scrap sorting apparatus of a waste refrigerator to adjust the amount of air flow according to the size and weight of the fine plastic scrap so that the plastic scrap can be sorted more effectively.

The fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention includes a hopper providing a space for separating the plastic scrap and the urethane scrap separated from the grinder, and a guide plate for guiding the falling direction of the plastic-urethane scrap introduced into the hopper; A first damper for guiding external air into the hopper, a breaker for shielding the air flow so that the plastic-urethane scrap falling along the guide plate is not scattered by a predetermined distance, and the plastic scrap dropped to the lower side of the hopper; The plastic discharge pipe for guiding to be discharged to the outside of the hopper, characterized in that it comprises a valve is installed on one side of the plastic discharge pipe and the hopper to block the air inside the plastic discharge pipe from entering the hopper.

The inside of the hopper is characterized in that it communicates with the inhaler that sucks air.

Between the inhaler and the hopper, characterized in that a reservoir for collecting the selected urethane scrap is characterized in that it is provided.

Between the hopper and the reservoir, it characterized in that the second damper for adjusting the amount of suction force provided by the inhaler inside the hopper.

The breaker is characterized in that it is configured to be adjustable in length.

The guide plate is characterized in that it is formed stepped.

The lower end of the guide plate is characterized in that located on the upper side of the first damper.

One end of the plastic discharge pipe, characterized in that the transport means for transferring the plastic scrap moved along the plastic discharge pipe to a predetermined place when the valve is opened.

According to the present invention configured as described above, there is an advantage that the recovery rate of the plastic scrap is improved to reduce the treatment cost of the urethane waste.

Hereinafter, with reference to the accompanying Figure 2 will be described the configuration of a preferred embodiment of the fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

Figure 2 is a block diagram showing a preferred embodiment of a fine plastic scrap sorting device (hereinafter referred to as "selection device") of the waste refrigerator according to the present invention.

As shown in the drawing, the sorting device is a device for classifying plastic-urethane-non-ferrous scrap from which iron crab is removed from the pulverized product of the waste refrigerator.

That is, the sorting device 100 is a device for sorting the fine plastic of the scrap scraped with fine plastic and urethane after the sorting of metal scrap and large plastic in the pulverized waste refrigerator.

To this end, the sorting apparatus 100 selectively sorts fine plastic scraps by using a weight difference between the plastic scrap and the urethane scrap.

The sorting apparatus 100 is provided with a sorting space therein, fine plastic-urethane scrap is introduced into the upper left side, the urethane scrap is discharged to the upper right side.

In addition, the fine plastic scrap is discharged downward to the outside of the sorting device 100. Then, the fine plastic scrap discharged to the outside of the sorting device 100 is moved to the transfer means 300 is collected and transferred to a separate storage space.

The conveying means 300 is a conveyor belt is applied, the belt can be rotated while drawing a closed curve to convey the fine plastic scrap.

The guide tube 102 is provided on the upper left side of the sorting device 100. The guide tube 102 is to guide the introduction of fine plastic-urethane scrap into the sorting device 100, one end is in communication with the sorting device 100, the other end is connected to the grinder (not shown) do.

Therefore, fine plastic scraps and urethane scraps finely pulverized in the grinder may be introduced into the sorting apparatus 100.

Meanwhile, the urethane scrap in which the fine plastic scrap is sorted is discharged to the outside through the upper right side of the sorting device 100. More specifically, the urethane scrap is discharged by the suction force provided from the outside.

To this end, an inhaler 200 and a suction pipe 220 for sucking the air inside the sorting device 100 are provided on the upper right side of the sorting device 100.

The inhaler 200 is configured to collect light urethane sorted by the sorting device 100 in a separate space by sucking and discharging air in the space inside the sorting device 100 to the outside.

That is, the inhaler 200 is a motor (not shown) is built therein, the motor is configured to generate a suction force when the power is applied to the rotation. In addition, the suction force generated by the inhaler 200 allows the inhaler 200 and the suction pipe 220 to be connected to each other so as to suck the air in the space inside the sorting apparatus 100.

In addition, a reservoir 240 is provided below the suction pipe 220. The reservoir 240 is a place where the urethane in the sorting device 100 sucked along the suction pipe 220 is stored before being sucked into the inhaler 200, and a plurality of reservoirs 240 are provided.

In addition, although one side of the reservoir 240 is not shown, it is preferable that a separate filter is provided so that air and urethane are separated.

Hereinafter, a detailed configuration of the fine plastic scrap sorting apparatus 100 of the waste refrigerator according to the present invention will be described with reference to FIG. 3.

3 is a block diagram showing a detailed configuration of the fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

As shown in the drawing, the sorting apparatus 100 includes a hopper 110 forming a space in which the plastic scrap and the urethane scrap are separated, and a guide plate 120 for guiding the falling direction of the plastic-urethane scrap introduced from the above-described grinder. ), A first damper 130 for guiding external air into the hopper 110, and a circuit breaker for blocking external discharge of the hopper 110 of plastic-urethane scrap falling along the guide plate 120. 140, and a plastic discharge pipe 150 for guiding the plastic scraps dropped to the hopper 110 to be discharged to the outside of the hopper 110, and the plastic discharge pipe 150 and the hopper 110 installed on one side. 150 is configured to include a valve 160 to block the inflow of the hopper 110 of the internal air.

The hopper 110 has an outer shape in which the funnel shape is coupled to the bottom of the longitudinally long cylinder, the end of the guide tube 102 is coupled to the upper left side, the suction tube 220 is coupled to the upper right side.

Therefore, plastic-urethane scrap is introduced into the guide tube 102, and the urethane scrap is configured to be transferred to the storage 240 through the suction tube 220.

In addition, the guide plate 120 is provided on the left side of the hopper 110. The guide plate 120 guides the plastic-urethane scrap transported along the guide tube 102 in a crusher (not shown) to fall obliquely, and the plastic-urethane scrap falling along the guide plate 120 is It falls to the center portion inside the hopper 110.

More specifically, the guide plate 120 is fixed inclined downward from the upper upper end of the hopper 110 to the right to guide the plastic-urethane scram to slide to the inner center of the hopper 110, the guide plate 120 In the middle of the) is bent to have a substantially 'b' shape.

Therefore, the plastic-urethane scrap that slides to the right along the upper upper surface of the guide plate 120 may be in the air in the stepped portion of the guide plate 120.

A first damper 130 is provided on the lower left side surface of the hopper 110. The first damper 130 is to allow the air outside the hopper 110 to be introduced into the hopper 110, the air flowing into the hopper 110 and the air flowing by the inhaler 200 The air flow in the interior space of the hopper 110 is forced more quickly by being in the cross direction.

That is, when the first damper 130 is opened, air outside the hopper 110 flows in the upper right direction of the inside of the hopper 110, and the air sucked by the inhaler 200 is transferred in the vertical upward direction. Done. Accordingly, the plastic-urethane scrap is slid down along the guide plate 120 and then scattered by contact with two air streams crossing each other.

In addition, the lower end portion of the guide plate 120 is preferably positioned above the first damper 130 so that the plastic and the urethane can be scattered.

That is, when the lower end of the first damper 130 is located below the first damper 130, the air introduced into the hopper 110 through the first damper 130 is guided by the guide plate 120. Since the flow is blocked so that the air flow inside the hopper 110 cannot be crossed, the scattering of the plastic and the urethane is impossible in the end.

Accordingly, the installation position and the air guide direction of the first damper 130 may be variously changed within the range in which two air flows may intersect in the hopper 110.

And, as the lower portion of the guide plate 120 is formed stepped, the plastic-urethane scrap can be effectively scattered by the intersection of the two air streams.

More specifically, the plastic-urethane scrap which is inclined to slide downward in the right direction along the upper portion of the guide plate 120 freely falls at the stepped portion of the guide plate 120, and at the same time occurs at the intersection of the two airflows. It can be effectively scattered by the generated turbulence.

The breaker 140 is provided at the top of the hopper 110. The breaker 140 prevents the plastic-urethane scrap introduced into the hopper 110 through the guide tube 102 from being sucked into the reservoir 240 without being scattered in the hopper 110.

That is, the breaker 140 is the guide plate 102 by allowing the length of the blocking plate 142 coupled to the lower end of the cylinder 141 can be adjusted in the up / down direction according to the change in the length of the cylinder 141. The plastic-urethane scrap introduced into the hopper 110 through the air is not directly received.

Therefore, the breaker 140 may be adjusted to have an appropriate length within the range not to be sucked into the suction pipe 220 in consideration of the weight change according to the size and type of plastic introduced into the hopper 110.

The plastic discharge pipe 150 is provided below the hopper 110. The plastic discharge pipe 150 is configured to allow the plastic dropped down by the load to be transferred to the transfer means 300 even though two air flows intersect within the hopper 110.

Therefore, the left end of the plastic discharge pipe 150 is preferably installed to extend to the vicinity of the transfer means (300).

The valve 160 is provided on one upper side of the plastic discharge pipe 150. The valve 160 shields the plastic discharge pipe 150 to block the air inside the plastic discharge pipe 150 from going back into the hopper 110. In addition, the valve 160 is selectively opened to open the hopper ( 110) to guide the plastic scraps gathered on the lower side to fall to the plastic discharge pipe (150).

Therefore, when the plastic discharge pipe 150 is shielded by the first damper 130, the inhaler 200 is in communication with the inside of the hopper 110 through the suction pipe 220, the hopper 110 is a guide tube ( 102) to communicate with the interior of the grinder.

One side of the suction pipe 220 is provided with a second damper 170. The second damper 170 is configured to adjust the magnitude of the suction force provided by the inhaler 200.

That is, when the inhaler 200 operates to generate the suction force, the suction force is all transmitted to the inside of the hopper 110 through the suction tube 220. In addition, the fine plastic scrap introduced into the hopper 110 may be introduced into the suction pipe 220 by the suction force of the inhaler 200.

Therefore, the amount of suction force provided in the hopper 110 may be adjusted by adjusting the opening degree of the second damper 170 to adjust the inflow of external air into the suction tube 220.

In addition, by adjusting the opening degree of the second damper 170, it is possible to separate the plastic scrap and the urethane scrap in response to the size change of the plastic scrap introduced into the hopper 110.

Hereinafter, a process of sorting fine plastics and urethane scraps using the scrap sorting device configured as described above will be described with reference to the arrow of FIG. 4.

Figure 4 is a flow chart showing a process for sorting plastic scrap using a fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention.

As shown in the figure, in order to sort the plastic and urethane by the material using the scrap sorting apparatus 100, the inhaler 200 provides a suction force inside the hopper 110, the first damper 130 is Open to allow two air flows to intersect so that turbulence is generated inside the hopper 110.

In addition, the second damper 170 is preferably adjusted according to the size of the plastic scrap introduced into the hopper 110.

In addition, the valve 160 is maintained in a shielded state, the blocking plate 142 is adjusted in position of the lower end in consideration of the size and weight of the plastic scrap is expected to enter the hopper (110).

In the state set as described above, the finely pulverized plastic-urethane scrap is introduced into the hopper 110 through the guide tube 102.

At this time, the plastic-urethane scrap is slid inclined downward in the right direction along the guide plate 120, and free fall from the stepped portion of the guide plate 120.

At the same time, the plastic-urethane scrap is scattered by turbulence generated by the flow of the external air introduced through the first damper 130 and the air flowing by being sucked by the inhaler 200 to each other.

The plastic scrap and the urethane scrap thus scattered are transferred to the lower side or the upper side due to the weight difference.

That is, the relatively heavy plastic scrap is lowered to collect in the upper space of the valve 160, the urethane scrap is blown upward by the suction force of the inhaler 200 to the reservoir 240 through the suction pipe 220. Will accumulate.

Then, the valve 160 is selectively opened to guide the plastic scrap to be transferred to the conveying means 300 by opening the plastic discharge pipe 150.

According to the above process, as shown in FIG. 5, the urethane scrap in which the fine plastic is selected can be seen that only a very small amount of plastic is included.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

The fine plastic scrap sorting apparatus of the waste refrigerator according to the present invention is configured to enable the sorting of the fine plastic contained in the urethane scrap from which iron-non-ferrous scrap and some plastic scraps are removed from the pulverized waste refrigerator.

Therefore, since the screening ability of plastics and urethanes is improved and the recycling rate of plastics is increased, there is an advantage of generating opportunity cost due to recycling.

In addition, the first damper and the second damper for adjusting the air flow amount according to the size and weight of the fine plastic scrap is provided, and the guide plate which is adjustable in length in consideration of the falling speed of the plastic-urethane scrap.

Therefore, in view of the content and size of the plastic scrap contained in the urethane, it is possible to control for more efficient screening, there is an advantage that the ease of use is improved.

In addition, since the urethane having a very low content of plastic can be quickly treated with less fuel during incineration, it is advantageous in that it is economical and minimizes environmental pollution.

Therefore, there is an advantage that can be clearly sorted by scrap at a low process cost.

Claims (8)

Hopper which provides a space for separating the plastic scrap and urethane scrap pulverized in the crusher, A guide plate for guiding the falling direction of the plastic-urethane scrap introduced into the hopper; A first damper for guiding external air into the hopper; A breaker for shielding the air flow so that the plastic-urethane scrap falling along the guide plate is not scattered by a predetermined distance; A plastic discharge pipe for guiding the plastic scrap dropped to the hopper to be discharged to the outside of the hopper; The plastic discharge pipe and the hopper is installed on one side of the fine plastic scrap sorting device of the waste refrigerator, characterized in that it comprises a valve for blocking the air inside the plastic discharge pipe is not introduced into the hopper. The method of claim 1, wherein the interior of the hopper, The fine plastic scrap sorting device of the waste refrigerator, characterized in that the communication with the inhaler for sucking air. The method of claim 2, wherein between the inhaler and the hopper, The fine plastic scrap sorting device of the waste refrigerator, characterized in that the reservoir is collected is collected urethane scrap. According to claim 3, Between the hopper and the reservoir, And a second damper for adjusting the amount of suction force provided to the inside of the hopper by the inhaler. According to claim 1, wherein the circuit breaker fine plastic scrap sorting device of the refrigerator, characterized in that the length is adjustable to be configured. The apparatus of claim 1, wherein the guide plate is formed stepped. The apparatus of claim 1, wherein the lower end of the guide plate is located above the first damper. According to claim 1, One end of the plastic discharge pipe, The fine plastic scrap sorting device of the waste refrigerator, characterized in that the transport means for transporting the plastic scrap moved along the plastic discharge pipe to a predetermined place when the valve is opened.

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