KR20140101170A - Oil skimmer conveyor - Google Patents

Oil skimmer conveyor Download PDF

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Publication number
KR20140101170A
KR20140101170A KR1020130014492A KR20130014492A KR20140101170A KR 20140101170 A KR20140101170 A KR 20140101170A KR 1020130014492 A KR1020130014492 A KR 1020130014492A KR 20130014492 A KR20130014492 A KR 20130014492A KR 20140101170 A KR20140101170 A KR 20140101170A
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South Korea
Prior art keywords
oil
conveyor
belt
net
skimmer
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Application number
KR1020130014492A
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Korean (ko)
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KR101480962B1 (en
Inventor
강호준
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해양환경관리공단
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Priority to KR20130014492A priority Critical patent/KR101480962B1/en
Publication of KR20140101170A publication Critical patent/KR20140101170A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/048—Oil collectors moved over the water skimming the water surface
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10—Devices for removing the material from the surface
    • E02B15/104—Conveyors; Paddle wheels; Endless belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Removal Of Floating Material (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil skimmer conveyor for recovering marine floating oil generated during a marine accident such as an oil tanker. More particularly, the present invention relates to an oil skimmer conveyor including a conveying portion, a driving portion, and a collecting portion, wherein the conveying portion includes a mesh net belt, an oil absorbing net, and a fastening member for coupling and fixing the mesh net belt and the oil absorbing net, The driving unit includes a chain, a sprocket gear, and a motor, and the collecting unit is an oil skimmer conveyor apparatus including a scraper and an air knife. The oil skimmer conveyor according to the present invention is a section type belt divided into a fixed space instead of an integral type belt, which can replace only a damaged portion at the time of breakage, has a scraper and an air knife, , And the oil recovery efficiency is very high.

Description

Oil skimmer conveyor {OIL SKIMMER CONVEYOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil skimmer conveyor for recovering marine floating oil generated during a marine accident such as an oil tanker.

Accidents such as drilling facilities installed in the ocean are destroyed by typhoons and oil tankers are stranded all over the world every year. Often oil spills out to sea during such accidents.

Spilled oil forms an oil film on sea water to cause marine pollution or float on the sea for a long time and is pushed to the shore by the effect of wind or algae to cause severe environmental damage to the coast. It is necessary to remove the floating oil in sea water in advance.

Conventionally, there are various methods for recovering floating oil. However, there are a few examples of such methods: (1) a method in which a person scoops or rolls oil using a ladle or oil absorbing paper; (2) a method in which a surface portion of a spongy oil- A method of lifting by a grab bucket on a cargo carrier, and (4) a method of removing by a suction conveyor.

Among the above-mentioned conventional floating oil recovery methods, there is a method in which a person uses a ladle or oil absorbing paper to individually lift or unload oil, as the work by manpower, the amount of recovery is limited and the working efficiency is poor, The suction efficiency of the seawater below the surface layer of the sea surface can not be avoided due to the fluctuation of the waves or the hull, and the method of floating the grab bucket on the cargo transportation seats , There is a problem that it is difficult to mount on a small ship because the machine itself is large.

On the other hand, (4) The method of removing by the absorption conveyor is a method of removing the oil floating on the sea surface after placing a part of the conveyor equipped with the synthetic resin belt having good oil adsorbability under the water surface, And it is relatively widely used because it is easy to mount on a small ship.

As described above, although the oil skimmer conveyor is widely used as the floating oil recovery device, the conventional oil skimmer conveyor has the following problems.

First, in the conventional oil skimmer conveyor, when the belt is partially broken because the conveyor belt is a single integrated belt, it is inconvenient to replace the entire belt.

In addition, in the conventional oil skimmer conveyor, the seawater can not pass through the conveyor belt, and the oil recovery efficiency due to the pump-up phenomenon is greatly reduced. In other words, as shown in Fig. 3, the floating oil on the water surface must be attached to the conveyor belt. However, as shown in Fig. 4, the conventional conveyor belt is made of urethane or Teflon rubber Plate, or a plate made of sus steel, which causes a return flow and a vortex resistance, and thus the oil recovery efficiency is not good. Particularly, such a return flow and vortex resistance become larger when the operation speed of the apparatus is increased in order to increase the recovery efficiency per unit time, which is a big problem.

In the present invention, the oil absorbing net separated by the sections on the mesh net belt is fixed by the fastening member so that only the damaged part can be replaced at the time of the breakage, and the material of the conveyor belt is made of the net- And to provide an oil skimmer conveyor in which the pumping up phenomenon is suppressed.

The present invention has been made to solve the conventional art,

An oil skimmer conveyor comprising a conveying part, a driving part, and a collecting part,

The transfer unit includes a mesh net belt, an oil adsorption net, and a fastening member for coupling and fixing the mesh net belt and the oil adsorption net,

The drive unit includes a chain, a sprocket gear, and a motor,

The recovery unit includes a scraper and an air knife.

Also, in the present invention, the oil skimmer conveyor apparatus is characterized in that the net area of the oil adsorption net is within a range of 2 to 20 mm 2.

Also, according to the present invention, there is provided an oil skimmer conveyor apparatus, wherein the oil sorbent network is provided in a plurality of two or more, and is replaceable for each compartment.

Further, in the present invention, there is provided an oil skimmer conveyor apparatus characterized in that the scraper and the air knife are provided in a plurality of two or more.

The oil skimmer conveyor according to the present invention is a section type belt divided into a fixed space instead of an integral type belt, which can replace only a damaged portion at the time of breakage, has a scraper and an air knife, , And the oil recovery efficiency is very high.

1 is a perspective view showing an oil skimmer conveyor according to the present invention.
Fig. 2 is a view showing the recovery unit of the oil skimmer conveyor of the present invention. Fig.
3 is a side view showing an operation example of the oil skimmer conveyor of the present invention.
4 is an explanatory view showing a pumping-up phenomenon of a conventional oil skimmer conveyor.
5 is a graph showing the results of the experimental example of the present invention for the pumping-up phenomenon.

Hereinafter, the present invention will be described in more detail with reference to FIG. 1 and FIG. 2 showing one embodiment of the present invention.

One embodiment of the present invention is a method

An oil skimmer conveyor including a conveying unit 10, a driving unit 20, and a collecting unit 30.

The transfer unit 10 is a part that functions to directly visualize floating oil. The transfer unit 10 includes a mesh-mesh belt 100 having a mesh-like shape, (110).

The mesh net belt 100 is a belt of the same type as a metal barbed net on which the oil adsorption net 110 is placed. Both side edges of the mesh net belt 100 are coupled to the chain 200 and driven together with the driving of the chain 200.

The mesh net belt 100 may be a generally used mesh net belt which is conventionally used, and is not particularly limited.

Unlike a conventional oil skimmer conveyor, the oil adsorption net 110 has a section divided into at least two spaces rather than an integral belt, so that the damaged portion can be partially replaced. Preferably the size of the oil adsorption network is adjusted so as to have 6, more preferably 12 or more spaces. Since the oil adsorbing net 110 is placed on the mesh net belt 100, a person skilled in the art can appropriately adjust the size of the mesh net belt 100 in consideration of the size of the mesh net belt 100.

The mesh area of the oil adsorption net 110 is preferably within a range of 2 to 20 mm 2. Here, the mesh area refers to the area of a hollow portion formed between the meshes.

As shown in Fig. 4, when the operating speed is raised by raising the speed in order to improve the oil recovery efficiency, the conveyor type oil skimmer generates vortex, conveyance flow, and the like by the rotational driving force of the portion immersed below the water surface And instead of adsorbing the floating oil to the upper part by adsorbing it on the oil adsorption net 110, rather pushing the oil layer of the floating oil toward the upper side. This phenomenon is also referred to as " pumping-up phenomenon ".

Therefore, in order to perform a more efficient oil recovery operation, it is important that the pump-up phenomenon does not occur even at a high rotation speed. When the mesh area of the oil adsorption net 110 is less than 2 mm 2, the seawater passes through the oil adsorption net 110 The pumping-up phenomenon occurs, which is not preferable.

On the other hand, when the mesh area of the oil adsorption net 110 exceeds 20 mm 2, the area of the hollow portion becomes excessively large, and the floating oil permeates and escapes rather than adsorbed on the oil adsorption net 110, It is not preferable in terms of recovery efficiency.

In the same sense, the net mesh area of the mesh net belt 100 is preferably wide enough to allow the seawater to pass therethrough, and is preferably about 5 to 20 times the net mesh area of the oil adsorption net 110.

The correlation between the above-described " pumping-up phenomenon " and the meshes area of the adsorption / desorption network can be understood in more detail with reference to the following embodiments. The specific numerical limitation range of the mesh area of the oil adsorption network is not limited to those of ordinary skill in the art (hereinafter referred to as "a person skilled in the art"), It can be understood that it is the result of the obtained invention.

The coupling member 120 functions to couple and fix the mesh net belt 100 and the oil adsorption net 110. The mesh net belt 100 and the oil adsorption net 110 A conventional means capable of tightly coupling and fixing can be used without limitation, and a pressing member 121 and a bolt-nut coupling 122 can be used. That is, after the oil absorbing net 110 is placed on the mesh net belt 100, the pressing member 121 can be coupled and fixed using a bolt and nut coupling 122.

The pressing member 121 can be made of a metal plate having a cavity in which the bolt is installed and can prevent the oil absorbing net 110 from being lifted from the mesh net belt 100, And the nut joint 122, as shown in FIG.

When the oil adsorption net 110 is lifted from the mesh net belt 100, the oil is collected by the scraper 300, and there is caused a phenomenon of trapping or excessive friction between the scraper 300 and the oil adsorption net 110 The oil skimmer conveyor 1 itself is not easily driven, and both the oil absorption network 110 and the scraper 300 can be damaged.

In the absence of the pressure member 121, since the oil adsorption net 110 fills up the water and the oil during the oil recovery operation, a large load is generated in the downward direction, The load is not dispersed by the bolt and nut connection 122, so that the load is concentrated only at the joint portion by the bolt and nut connection 122, and the tear breakage phenomenon of the oil absorption network 110 is frequently generated.

The driving unit includes a chain 200, a sprocket gear 210, and a motor 220, which generate a driving force to lift the oil of the feeding unit.

The chain 200 is engaged with and fixed to a side surface portion of the mesh net belt 100 of the transfer unit 10 so that the mesh net belt 100 is driven together with the chain 200 when the chain 200 is driven.

The sprocket gear 210 is a toothed wheel that meshes with the chain. Conventional oil skimmer conveyors are often of the drum belt type. In the case of the drum belt type, when oil flows between the drum and the belt, a slip phenomenon frequently occurs due to weak friction between the drum and the belt. Therefore, in the present invention, the chain and the sprocket gear are driven so as to enable high-speed operation without slip phenomenon. That is, the oil skimmer conveyor of the present invention can operate at a high speed of about 50 m / min and has a high mechanical strength.

The motor 220 is connected on the axis of the sprocket gear 210 so that the motor driving force is transmitted in the order of the sprocket gear 210, the chain 200, the mesh belt 100, do.

The recovery unit 30 is provided with a scraper 300 and an air knife 310 serving as a part for separating and recovering the floating oil raised by the transfer unit 10 from the transfer unit 10 .

The scraper 300 is a polypropylene or rubber blade that is in contact with the oil adsorption net 110 and scraped off the floating oil adhered to the oil adsorption net 110, A plurality of scrapers 311 and secondary scrapers 312 can be used.

When the polypropylene material is used, the hardness is strong and it is good to drop the high viscosity oil. However, the friction between the scraper 300 and the oil adsorption net 110 may cause the driving part to be unreasonable. The friction between the scraper 300 and the oil adsorption nets 110 does not hinder the driving part, but it may not be good for dropping the high viscosity oil.

Preferably, a rubber material is used as the primary scraper 301, polypropylene material is used as the secondary scraper 302, and the friction between the scraper 300 and the oil adsorption net 110 This is to reduce the burden on the user and to efficiently drop both viscous oil and low viscosity oil.

The air knife 310 injects high pressure air from the inside of the mesh net belt 100 to the outside of the mesh net belt 100 for more efficient oil recovery so that the remaining air between the oil adsorption net 110 that has not yet been removed by the scraper 300 It is a device that allows oil to be recovered.

The air knife 310 may be an air blower and is suitable for a pressure of 4,000 to 5,000 mmAq and a flow rate of 4 to 5 m < 3 > / min.

The air knife 310 can use two or more of the primary air knife 311 and the secondary air knife 312 for more efficient oil recovery in the same manner as the scraper 300.

Hereinafter, the present invention will be described in more detail with reference to experimental examples. 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 or scope of the invention.

Experimental Example

The following tests were performed on the pumping up phenomenon of the oil skimmer conveyor.

First, crude oil was used in a water tank containing seawater to form an oil layer having a size of about 25 mm, and an oil skimmer conveyor of the present invention was used. As shown in Table 1 below, Respectively.

The time used for the recovery time was about 30 minutes, and the recovery rate was evaluated by the weight ratio of the recovered oil to the weight of the input oil.

Types of Ashes Experimental Example 1 Teflon Grass Belt by Segment (Oil sorption net mesh area about 4㎟) 12 pieces Experimental Example 2 Teflon Grass Belt by Segment (Oil sorption net mesh area about 16㎟) 12 pieces Experimental Example 3 Urethane belt by section (no mesh) 12 sheets Experimental Example 4 Teflon Grass Belt by Segment (Oil absorbed mesh net area about 36㎟) 12 pieces

The experimental results are shown in Fig. Experimental Example 3, in which seawater could not pass through due to lack of a mesh, was not affected by the vortex flow and return flow resistance. In Experimental Example 4, the area of the mesh was too wide and the oil was not adsorbed well. Recovery rate was lower than that of the oil skimmer conveyor of the present invention. Especially, when the operation speed is increased, it is confirmed that the efficiency difference between the two is further increased.

1: Oil skimmer conveyor
10: Feeder 20:
30:
100: mesh net belt 110: oil adsorption network
120: fastening member 121: pressing member
122: Combine bolt and nut
200: chain 210: sprocket gear
220: motor
300: Scraper 301: Primary scraper
302: secondary scraper 310: air knife
311: Primary air knife 312: Secondary air knife

Claims (4)

An oil skimmer conveyor comprising a conveying part, a driving part, and a collecting part,
The transfer unit includes a mesh net belt, an oil adsorption net, and a fastening member for coupling and fixing the mesh net belt and the oil adsorption net,
The drive unit includes a chain, a sprocket gear, and a motor,
Wherein the collecting portion comprises a scraper and an air knife. The oil skimmer conveyor apparatus according to claim 1, wherein the mesh area of the oil adsorption net is within a range of 2 to 20 mm 2. [2] The oil skimmer conveyor apparatus according to claim 1, wherein the oil adsorption network is provided in a plurality of two or more, and is replaceable for each compartment. The oil skimmer conveyor apparatus according to claim 1, wherein the scraper and the air knife are provided in a plurality of two or more.
KR20130014492A 2013-02-08 2013-02-08 Oil skimmer conveyor KR101480962B1 (en)

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KR20130014492A KR101480962B1 (en) 2013-02-08 2013-02-08 Oil skimmer conveyor

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Application Number Priority Date Filing Date Title
KR20130014492A KR101480962B1 (en) 2013-02-08 2013-02-08 Oil skimmer conveyor

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KR20140101170A true KR20140101170A (en) 2014-08-19
KR101480962B1 KR101480962B1 (en) 2015-01-09

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN105501815A (en) * 2015-12-28 2016-04-20 苏州飞驰环保科技股份有限公司 Conveying device suitable for collecting floating objects and water plants and front cabin collecting system
CN108867597A (en) * 2018-06-27 2018-11-23 安徽佳明环保科技股份有限公司 A kind of weeds fishing device on weed-cutting launch
CN109094744A (en) * 2018-07-12 2018-12-28 南昌工程学院 A kind of river regulation multifunctional equipment
WO2020161381A1 (en) * 2019-02-08 2020-08-13 Clewat Oy A separating arrangement for a device for collecting waste from water and a device
CN112459031A (en) * 2020-12-03 2021-03-09 孟千 Water conservancy river course floating garbage collection device based on hydrodynamic force

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CN106759195B (en) * 2016-12-27 2018-09-21 浙江海洋大学 A kind of duckweed refloatation device
CN109208562B (en) * 2018-10-30 2020-12-01 徐州宇之阳市场营销策划有限公司 Cleaning device for water surface garbage floater
CN112340808B (en) * 2021-01-08 2021-04-13 广州蒙太奇电器有限公司 Sludge residue collection device floats in sewage treatment pond

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KR0132082Y1 (en) * 1996-04-06 1999-03-30 이도형 Oil removing ship for preventing ocean pollution
KR200261769Y1 (en) * 2001-10-17 2002-01-24 김대봉 a marine floating trash and an oil gathering apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501815A (en) * 2015-12-28 2016-04-20 苏州飞驰环保科技股份有限公司 Conveying device suitable for collecting floating objects and water plants and front cabin collecting system
CN105501815B (en) * 2015-12-28 2017-10-03 苏州飞驰环保科技股份有限公司 The conveying device and front deck collection system collected suitable for floating object and pasture and water
CN108867597A (en) * 2018-06-27 2018-11-23 安徽佳明环保科技股份有限公司 A kind of weeds fishing device on weed-cutting launch
CN109094744A (en) * 2018-07-12 2018-12-28 南昌工程学院 A kind of river regulation multifunctional equipment
WO2020161381A1 (en) * 2019-02-08 2020-08-13 Clewat Oy A separating arrangement for a device for collecting waste from water and a device
CN113423890A (en) * 2019-02-08 2021-09-21 科勒瓦特公司 Separating device and apparatus for an apparatus for collecting waste from water
US11898316B2 (en) 2019-02-08 2024-02-13 Clewat Oy Separating arrangement for a device for collecting waste from water and a device
CN112459031A (en) * 2020-12-03 2021-03-09 孟千 Water conservancy river course floating garbage collection device based on hydrodynamic force

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