KR102462546B1 - Specific gravity separating apparatus for wet wasted fish net using specific gravity difference - Google Patents

Abstract

The present invention relates to a specific gravity separating apparatus of a waste fishing net and, more specifically, to a wet specific gravity separating apparatus of a waste fishing net using a specific gravity difference, which separates waste fishing nets into high specific gravity substances and low specific gravity substances by using a specific gravity difference. The wet specific gravity separating apparatus of a waste fishing net using a specific gravity difference according to the present invention comprises: a fishing net input unit (10) that accommodates pulverized and inputted waste fishing nets and moves the same downward while agitating the same; a water tank unit (20) that accommodates a specific gravity liquid and the pulverized waste fishing nets inputted from the fishing net input unit (10) in a body part of a hollow structure with an open upper surface; a first transfer paddle (21) that is installed at an upper end of the water tank unit (20), immerses the inputted waste fishing nets under a water surface, and rotates at the same time to transfer the same in a rotational direction; a second transfer paddle (22) that is provided in a shape of a plurality of wings and transfers a low specific gravity material lighter than the specific gravity liquid and floating in the water tank unit (20) among the waste fishing nets transferred by the first transfer paddle (21); a low specific gravity material discharge unit (30) that recovers the low specific gravity material; an inclined plate (23) that collects a high specific gravity material heavier than the specific gravity liquid among the waste fishing nets settled by the second transfer paddle (22) to a lower part of the water tank unit (20); and a high specific gravity material discharge unit (40) that transfers and recovers the high specific gravity material recovered at the lower part of the water tank unit (20) by the inclined plate (23), wherein the specific gravity liquid is an aqueous sodium chloride solution having a specific gravity of 1.2 g/cm^3 or industrial water having a specific gravity of 1.0 g/cm^3. The apparatus has improved efficiency of wet specific gravity separation.

Description

Wet specific gravity separation device for waste fishing nets using specific gravity difference

The present invention relates to a specific gravity separation device for a waste fishing net, and more particularly, to a wet specific gravity separation device for a waste fishing net using a specific gravity difference for separating a waste fishing net into a high specific gravity material and a low specific gravity material using the specific gravity difference.

The first international norm to protect the marine environment from marine debris was the London Convention, which came into force in 1975, and has continued to discuss countermeasures against marine debris, but at the 2012 Sustainable Development Conference (Rio+20), the With the promise of 'reducing waste', the discussion is becoming more active.

The G20, including Korea, agreed on the ‘G20 Action Plan on Marine Litter’ in July of last year, which contains seven policies and 41 tasks to be implemented to respond to the problem of marine debris.

It is estimated that 131,000 tons of fishing gear (nets, fishing nets, etc.) are used annually in Korea's coastal fishing and aquaculture, and about 43,800 tons of discarded fishing gear are generated. Abandoned fishing nets require urgent management as they cause problems such as damage to aquatic life due to ghost fishing, vessel operation failure, damage to the seabed ecosystem and habitat, and generation of microplastics.

In general, when fishing nets are damaged and cannot be used, they are discarded as they are in the sea, and as this practice has continued for decades, the discarded fishing nets are gradually accumulating near the fishing grounds, causing environmental damage. The specific disadvantages caused by waste fishing gear including waste fishing nets are: First, because the waste fishing nets are difficult to decompose, they are not decomposed and are deposited in their original form. , Second, it interferes with the spawning and habitation of fish and shellfish, third, it causes maritime accidents, and fourth, the metal weight attached to the fishing net is made of heavy metals such as lead, which aggravates marine pollution.

Therefore, the present invention intends to separate the waste fishing nets and finally manufacture the waste fishing nets in a form that can be recycled.

Korean Patent Registration No. 10-1130461

The present invention has been devised to solve the conventional problems described above, and the present invention uses the specific gravity difference of the collected and cut waste fishing nets to obtain a low specific gravity material including PA6, PP and PE, and a high boiling point including PET and a weight. An object of the present invention is to provide a waste fishing net wet specific gravity separation device for separating heavy substances.

The technical problems to be solved by the invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

Waste fishing net wet specific gravity separation device using a specific gravity difference according to the present invention,

A fishing net input unit 10 that receives the crushed and input waste fishing net and stirs it while moving it downward;

a water tank unit 20 for accommodating the non-specific liquid and the crushed waste fishing net flowing in from the fishing net input unit 10 in the body portion of the hollow structure having an open upper surface;

a first transfer paddle 21 installed on the upper end of the water tank 20 to immerse the waste fishing net inputted at the same time as rotation under the water surface and transfer it in the rotational direction;

Among the waste fishing nets delivered by the first transfer paddle 21, the second transfer paddle 22 provided in the shape of a plurality of wings to transfer the low specific gravity material floating in the water tank 20, which is lighter than the specific gravity solution. ;

a low specific gravity material discharge unit 30 for recovering the low specific gravity material;

a swash plate 23 for collecting a high specific gravity material heavier than the specific gravity solution from among the waste fishing nets precipitated by the second transfer paddle 22 to the lower portion of the water tank 20;

A high specific gravity material discharge unit 40 for transferring and recovering the high specific gravity material recovered in the lower part of the water tank 20 by the swash plate 23;

The specific gravity is

An aqueous sodium chloride solution with a specific gravity of 1.2 g/cm 3 or

It is characterized as industrial water having a specific gravity of 1.0 g/cm 3 .

By means of solving the above problems, the present invention can increase the efficiency of wet specific gravity separation compared to the prior art by easily separating the waste fishing net into high specific gravity material and low specific gravity material using specific gravity liquid.

1 is a view showing a wet specific gravity separation device for waste fishing nets using a specific gravity difference according to an embodiment of the present invention.
2 is a view specifically showing the low specific gravity material discharge unit 30 of the wet specific gravity separation device for waste fishing nets using a specific gravity difference according to an embodiment of the present invention.
3 is a view specifically showing the high specific gravity material discharge unit 40 of the wet specific gravity separation device for waste fishing nets using a specific gravity difference according to an embodiment of the present invention.
4 is a specific gravity measuring sensor 24, a sodium chloride aqueous solution tank 25, a sodium chloride aqueous solution transfer pump 26, an industrial water tank part 27 of the wet specific gravity separation device for a waste fishing net using a specific gravity difference according to an embodiment of the present invention. And it is a view specifically showing the industrial water transfer pump (28).

Terms used in this specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

In the entire specification, when a part “includes” a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the embodiments of the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

Specific details including the problem to be solved for the present invention, the means for solving the problem, and the effect of the invention are included in the embodiments and drawings to be described below. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

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

Waste fishing net wet specific gravity separation device using specific gravity difference according to the present invention, as shown in FIG. It consists of (40).

The fishing net input unit 10 receives the input waste fishing net and agitates it while moving it downward. More specifically, the fishing net input unit 10 is composed of an input hopper 11 , an input stirrer 12 and an input paddle 13 .

The input hopper 11 is provided as a funnel-shaped container to move the inputted waste fishing net to the bottom, and if necessary, a device for discharging the contents by opening a funnel-shaped outlet at the bottom may be provided.

The input stirrer 12 is provided at the lower end of the input hopper 11 and transports to the lower end while stirring the inputted waste fishing net.

The input paddle 13 is provided at the lower end of the input agitator 12 and transfers the transferred waste fishing net to the water tank unit 20 .

Here, it is preferable that the waste fishing net is crushed to a predetermined size using a waste fishing net crusher and introduced into the fishing net input unit 10 . More specifically, since the introduced waste fishing net is crushed and introduced using a waste fishing net crusher, it may be classified according to the material. That is, the waste fishing net may be classified into PA6 (Nylon 6), PP (Polypropylene), PE (Polyethylene), PET (polyethylene terephthalate), and weight.

Next, the water tank unit 20 is provided as a body part of a hollow structure to receive the waste fishing net and the specific liquid introduced from the fishing net input unit 10, the upper surface is opened to the first transfer paddle 21 and the first Two transfer paddles 22 are provided on the upper surface of the water tank 20 . Here, the body portion of the water tank 20 is formed in an upper and lower narrow shape to facilitate recovery of the specific gravity solution and the high specific gravity material. In addition, the swash plate 23 is provided so that the lower end of the body part of the water tank part 20 has a shape of an upper and lower narrow.

The swash plate 23 serves to collect a high specific gravity material heavier than the specific gravity solution among the waste fishing nets deposited by the second transfer paddle 22 to the lower portion of the water tank 20 . The swash plate 23 is installed on one side of the lower side of the water tank part 20 and is provided at an angle of 40 to 50°, so that it is easy to recover the specific gravity liquid and the high specific gravity material by the formed angle.

Here, it is preferable to use sodium chloride aqueous solution or industrial water as the specific gravity solution, and when the specific gravity solution is used as an aqueous sodium chloride solution, the specific gravity is 1.2 g/cm 3 , and when the specific gravity solution is industrial water, the specific gravity is 1.0 g/cm 3 to be. Here, when the specific gravity solution is sodium chloride aqueous solution (specific gravity 1.2 g / ㎤), PA6 (specific gravity: 1.13 g / ㎤), PP (specific gravity: 0.92 g / ㎤) and PE (specific gravity: 0.96 g / ㎤) is lighter than the sodium chloride aqueous solution, so it is classified and separated as a low specific gravity material, and PET (specific gravity: 1.38 g/cm3) and weight (specific gravity: 11.34 g/cm3) are heavier than the sodium chloride aqueous solution, so they are classified as high specific gravity substances. classified and separated. On the other hand, when the specific gravity liquid is industrial water (specific gravity 1.0 g/cm 3 ), PP (specific gravity: 0.92 g/cm 3) and PE (specific gravity: 0.96 g/cm 3) of the inflowing waste fishing net are lighter than the industrial water, so it is low It is classified as a specific gravity material and separated, and PA6 (specific gravity: 1.13 g/cm3), PET (specific gravity: 1.38 g/cm3) and weight (specific gravity: 11.34 g/cm3) are heavier than the industrial water, so they are considered high specific gravity materials. classified and separated.

According to an embodiment of the present invention, as shown in FIG. 4 , a specific gravity sensor 24 for detecting the specific gravity of the specific gravity solution accommodated in the water tank 20 and a specific gravity value and a set specific gravity of the detected specific gravity solution Comparing the values, it further includes transfer pumps 26 and 28 for adding or removing sodium chloride aqueous solution or industrial water.

When the specific gravity solution is a sodium chloride aqueous solution, a sodium chloride aqueous solution tank 25 and a sodium chloride aqueous solution transfer pump ( 26) are further provided. More specifically, the specific gravity sensor 24 is provided on one side of the water tank 20 to detect the specific gravity of the specific gravity solution, and when the measured specific gravity value is out of the set specific gravity value of 1.2 g/cm 3 , the The sodium chloride aqueous solution transfer pump 26 is adjusted to add or remove the sodium chloride aqueous solution from the sodium chloride aqueous solution tank 25 to maintain the set specific gravity.

In addition, when the specific gravity solution is industrial water, the industrial water tank unit 27 and the industrial water transfer pump to inject industrial water so that the specific gravity solution sensed by the specific gravity sensor 24 is 1.0 g/cm 3 (28) is further provided. More specifically, when the measured specific gravity value deviates from the set specific gravity value of 1.0 g/cm 3 , the industrial water transfer pump 28 is adjusted to add or remove the industrial water from the industrial water tank unit 27, and the Maintain the set weight.

The first transfer paddle 21 is installed on the upper end of the water tank unit 20 to immerse the waste fishing net inputted at the same time as rotation under the water surface and transfer it in the rotational direction. More specifically, PA6 (Nylon 6), PP (Polypropylene), PE (Polyethylene), PET (polyethylene terephthalate), and a weight introduced into the water tank 20 are the specific gravity by the first transfer paddle 21 . After being immersed under the surface of the liquid, the high specific gravity material heavier than the set specific gravity solution sinks down, and the low specific gravity material lighter than the set specific gravity solution is transferred to the second transfer paddle 22 . As shown in FIG. 1 , the first transfer paddle 21 is provided in a radial or windmill type on one rotational shaft to apply pressure to the waste fishing net at the same time as it rotates so that the waste fishing net is contained below the water surface.

The second transfer paddle 22 has a plurality of wing shapes to transfer the low specific gravity material floating in the water tank unit 20, which is lighter than the specific gravity liquid among the waste fishing nets delivered by the first transfer paddle 21 . is provided with The second transfer paddle 22 has a plurality of paddles installed in a vertical direction on a belt rotating by a plurality of rotation shafts to transfer the low specific gravity material. The low specific gravity material transferred by the second transfer paddle 22 is transferred to the first outlet and then discharged to the low specific gravity material recovery port 31 .

Next, the low specific gravity material and the high specific gravity material separated from the water tank 20 are separately discharged together with the specific gravity solution. More specifically, the low specific gravity material is discharged to the low specific gravity material discharge unit 30, the high specific gravity material is discharged to the high specific gravity material discharge unit (40).

As shown in FIG. 2 , the low specific gravity material discharge unit 30 is composed of a low specific gravity material recovery port 31 and a low specific gravity material perforated plate 32 .

The low specific gravity material recovery port 31 is provided in a hollow structure with an open top to recover the low specific gravity material.

The low specific gravity material perforated plate 32 is provided with a plurality of perforations so as to pass the specific gravity solution accommodated together with the low specific gravity material in the low specific gravity material recovery port (31). More specifically, since the specific gravity fluid flows together when receiving the low specific gravity material in the low specific gravity material recovery port 31, the low specific gravity material perforated plate 32 to separate the specific gravity solution and the low specific gravity material A plurality of perforations having a size of 5 to 10 mm are provided, and the specific gravity solution is passed through the low specific gravity material perforated plate 32 to separate it.

Next, as shown in FIG. 3 , the high specific gravity material discharge unit 40 includes a first conveyor 41 , a second conveyor 42 , and a second discharge port 43 .

The high specific gravity material sinking into the water tank 20 is moved through the first conveyor 41 and then introduced into the second conveyor 42 . The end of the first conveyor 41 is extended and the second conveyor 42 is inclined at a certain angle, and the high specific gravity material is discharged to the second outlet 43 along the second conveyor 42 . do.

By means of solving the above problems, the present invention can increase the efficiency of wet specific gravity separation compared to the prior art by easily separating the waste fishing net into high specific gravity material and low specific gravity material using specific gravity liquid.

As such, those skilled in the art to which the present invention pertains will understand that the above-described technical configuration of the present invention may be implemented in other specific forms without changing the technical spirit or essential characteristics of the present invention.

Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the above detailed description, and the meaning and scope of the claims and their All changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

10. Fishing net input part
11. Input hopper
12. Input stirrer
13. Insert Paddle
20. Water Tank
21. 1st transfer paddle
22. 2nd transfer paddle
23. swash plate
24. Density sensor
25. Sodium chloride aqueous solution tank part
26. Sodium chloride aqueous solution transfer pump
27. Industrial water tank department
28. Industrial water transfer pump
30. Low specific gravity discharge part
31. Low specific gravity material recovery port
32. Low specific gravity perforated plate
40. High specific gravity discharge part
41. First Conveyor
42. Second Conveyor
43. 2nd outlet

Claims (5)

A fishing net input unit 10 that receives the crushed and input waste fishing net and stirs it while moving it downward;
a water tank unit 20 for accommodating the non-specific liquid and the crushed waste fishing net flowing in from the fishing net input unit 10 in the body portion provided in the upper and lower narrow shape of the hollow structure with the upper surface open;
The waste fishing net installed at the upper end of the water tank 20 is immersed under the water surface and transferred at the same time as it rotates, and is provided radially on one rotation axis and applied pressure to the waste fishing net at the same time as it rotates. The first transfer paddles 21 provided to contain;
Among the waste fishing nets delivered by the first transfer paddle 21, it is lighter than the specific gravity solution and is provided in the shape of a plurality of wings to transport the low specific gravity material floating in the water tank 20, but rotated by a plurality of rotation shafts A plurality of paddles are installed in the vertical direction on the belt to the second transfer paddle 22 for transferring the low specific gravity material;
a low specific gravity material discharge unit 30 for recovering the low specific gravity material;
Among the waste fishing nets settling by the second transfer paddle 22, a high specific gravity material heavier than the specific gravity liquid is collected in the lower part of the water tank 20, but the angle is 40 a swash plate 23 provided at an angle of to 50°;
A high specific gravity material discharge unit 40 for transferring and recovering the high specific gravity material recovered in the lower part of the water tank 20 by the swash plate 23;
The fishing net input unit 10,
an input hopper 11 provided with a funnel-shaped container to move the inputted waste fishing net to the bottom, and provided with a device for discharging the contents by opening the funnel-shaped outlet;
An input stirrer 12 provided at the lower end of the input hopper 11 and transporting the inputted waste fishing net to the lower end while stirring; and
An input paddle 13 provided at the lower end of the input agitator 12 to transfer the transferred waste fishing net to the water tank 20; consists of,
The low specific gravity material discharge unit 30,
a low specific gravity material recovery port 31 having an open upper portion to recover the separated low specific gravity material; and
a low specific gravity material perforated plate 32 provided with a plurality of perforations with a size of 5 to 10 mm to penetrate the specific gravity solution accommodated together with the low specific gravity material in the low specific gravity material recovery port 31; further comprising,
After moving through the first conveyor 41, the high specific gravity material sinking into the water tank 20 is introduced into the second conveyor 42, and the second conveyor 42 is inclined at a predetermined angle along the second conveyor 42. discharged to the outlet (43),
The low specific gravity material conveyed by the second conveying paddle 22 is discharged to the low specific gravity material recovery port 31 after being conveyed to the first discharge port,
The specific liquid is
It is an aqueous sodium chloride solution with a specific gravity of 1.2 g/cm3 or industrial water with a specific gravity of 1.0 g/cm3,
a specific gravity sensor 24 for detecting the specific gravity of the specific gravity solution accommodated in the water tank 20; and
a transfer pump (26, 28) for adding or removing sodium chloride aqueous solution or industrial water by comparing the detected specific gravity value with the specific gravity value of the specific gravity solution; further comprising,
When the specific gravity solution is an aqueous sodium chloride solution having a specific gravity of 1.2 g/cm 3 ,
The low specific gravity material is PA6 (Nylon 6), PP (Polypropylene) or PE (Polyethylene), and the high specific gravity material is PET (polyethylene terephthalate) or a weight,
When the specific gravity solution is industrial water having a specific gravity of 1.0 g/cm 3 ,
The low specific gravity material is PP (Polypropylene) or PE (Polyethylene), the high specific gravity material is PA6 (Nylon 6),
When the specific gravity solution is set as an aqueous sodium chloride solution,
When the specific gravity value detected by the specific gravity sensor 24 deviates from the set specific gravity value of 1.2 g/cm 3 , the sodium chloride aqueous solution is added or removed from the sodium chloride aqueous solution tank unit 25 by adjusting the sodium chloride aqueous solution transfer pump 26 . to maintain the set specific gravity value,
If the specific gravity solution is set to industrial water,
When the specific gravity value detected by the specific gravity sensor 24 is out of the set specific gravity value of 1.0 g/cm3, the industrial water transfer pump 28 is adjusted to add or remove the industrial water from the industrial water tank unit 27 Characterized in maintaining the set specific gravity value,
Wet specific gravity separation device for waste fishing nets using specific gravity difference.
delete delete delete delete

Images