JPS6047110A - Oil spill recovery device - Google Patents

Abstract

PURPOSE:To enhance the efficiency of recovery of oil spill by a method in which oil spill is surrounded by oil fences, vermiculite grains are charged into the oil fences, and the vermiculite grains adsobing spillage oil are recovered. CONSTITUTION:A given length of hollow soft tubes connected is put to the sea by tug boats 1A and 1B to form an oil fence 3 to surround the oil spill. Vermiculite grains are then spread into the oil fence 3 from a powder spreader 5, and the oil spill is adsorbed on the vermiculite grains having very small specific gravity which float on the sea surface. The vermiculite grains sufficiently adsorbing the oil spill are recovered from the suction port 9 of an absorber 6 with a float, and the oil spill is separated from vermiculite grains in a roller type continuous separator 7 installed on the tug boats 1A and 1B.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spilled oil recovery device capable of recovering spilled oil, which is a cause of marine pollution due to the sudden increase in the number of tankers and the like.

With the development of industry, the increase in marine pollution is one of the serious social problems. Among these, the increase in oil pollution is due to a slight increase in the number of large tankers due to a significant increase in demand for oil, and the number of oil holes that leak out due to accidents is incomparably larger than before, so the conventional treatment method of chemicals is not effective. In oil treatment, there is a risk that secondary pollution may occur, and a method that can physically collect and treat spilled oil has been considered and resolved.

SUMMARY OF THE INVENTION In view of these conventional problems, it is an object of the present invention to provide an invented spilled oil recovery device that can effectively solve these problems.

For this purpose, as a result of numerous studies and experiments, the inventors have
We discovered that vermiculite is extremely effective as an adsorbent for oil spills. This vermiculite is made from Mica, a raw mica ore consisting of many flakes, which is heat-treated at a specific temperature of over 1000 degrees Celsius, and expands approximately 20 times when fired, compared to ordinary activated carbon. The porosity is more than doubled, it has an accordion shape, and its characteristic line is light, that is, the specific gravity is 0.07 to 0.11.
．． It has excellent nonflammability, heat retention, electrical insulation, etc., and its main components are aio241 and Mg021tI, which are necessary as adsorbents.
6, AI'20318%, and others. This vermiculite will be sprayed on the surface of the spilled oil.
Because it is lightweight, it floats well on the sea surface, adsorbs spilled oil, and maintains seawater neutrality with H of 7, making it stable.
Moreover, it can be provided economically.

Therefore, in order to achieve such an objective, the present invention
A towing boat that tows a rope to form an oil fence on the sea surface and collects the spilled oil within the oil fence; a dispersing means that sprays 7-kumiculite on the collected spilled oil; and an adsorption power of the noku-miculite. The apparatus is characterized by comprising a recovery means for recovering the vermiculite after adsorbing the spilled oil, and a separation means for separating the spilled oil from the recovered vermiculite.

Next, one embodiment of the present invention will be described in detail based on the present invention.

Fig. 1 shows an outline of an embodiment of the present invention (δ origin), Fig. 2 shows a schematic digit origin of the spilled oil recovery ship in Fig. 1, (4) is its front view, and (Bl is its plan view). Yes. Figures 1 and 2
In the figure, the spilled oil recovery equipment l is connected to the towing vessels IA and IB,
It consists of a spilled oil recovery vessel 4 for recovering spilled oil 2 within an oil fence 3 formed by being towed by the towing vessel IA and IBIc. The towing vessels IA and IB are equipped with a large number of hollow soft tubes of a predetermined length, are connected with fasteners (not shown), and are thrown into the ocean and towed to surround the spilled oil 2 and form an oil fence 3. . By reducing the size of this oil fence 3, it is possible to prevent the spilled oil 2 spilled onto the sea from spreading, resulting in a thin oil film and a decrease in oil recovery efficiency. In addition, as shown in FIG. 2, the spilled oil recovery vessel 4 also includes a dispersing means for dispersing vermiculite, a powder dispersing machine 5 in this embodiment, a collecting means for recovering the dispersed vermiculite, and a spraying means for dispersing vermiculite in this embodiment. 'separation means for separating spilled oil fluid and water from the absorption device 6 with a vent and the absorbed vermiculite;
In this embodiment, a row 2 type continuous separation device 7 and the like are installed. This spilled oil recovery vessel 4 is located inside the oil tank 3 or outside the oil fence 3, and spreads powdered vermiculite using a powder spreader 5. At this time, ノ(−
Since the amount of migulite is extremely large, we spread 11 times while adjusting the direction of the wind and adjusting the spray flI/H to prevent it from being scattered outside the oil fence 3 due to the calm. Although vermiculite adsorbs iJk oil floating on the sea surface, it has a low specific gravity and floats without settling above the sea surface. Spilled oil 2fX: sufficiently adsorbed) (-miculite gold, absorption device 6 with float is the)
The miculite is absorbed through the cut absorption port 9. By providing this float 8 force, the absorption of Nokuichi Miculite can be carried out completely continuously regardless of the fluctuation of the part.

This absorbed vermiculite is rotatably installed inside the row 2 type continuous separation straightener 7 and works together. , a separation device 6 separates the absorbed spilled oil 2 and river water.
According to the vermicunite storage tank 12, the processed vermiculites are accumulated in the vermicunite accumulation tank 12 via the conveyor 11.

Therefore, in this embodiment, the spilled oil recovery vessel 4 is equipped with a powder spreader 5, an absorption device 6 with a float, a device 7 for collecting oil and water, and a 19fe oil/moisture device IO. Although the entire spilled oil recovery system is configured, it is not limited to this, and is equipped with only a powder spreader 5 and an absorbent bean paste 6 with a float, a 4+'f; The separator lO, etc. may be installed at the base to constitute a comprehensive oil spill recovery system.

As described above, according to the present invention, there is provided a towing vessel that tows a lobe to form an entire oil fence, a dispersing means that uses the towing vessel to spray vermiculite on the spilled oil, and the spilled oil f : By providing an absorption means for absorbing the vermiculite after adsorption to the vermiculite and a separation means for separating the spilled oil from the vermiculite, the vermiculite adsorbs the spilled oil with its adsorption power. It is extremely lightweight, maintains a floating state on the sea surface, is easily and reliably absorbed by absorption means, and is extremely chemically stable, so there is no risk of causing secondary pollution (and its recovery efficiency is improved). It has the effect of

In addition, a 1J powder spreader 5 described as an embodiment of the present invention
, float absorption device 6, roller type continuous separation device ft7, etc. are 701 embodiments, and are not limited to these, and it is also possible to implement them in other embodiments. .

[Brief explanation of drawings]

FIG. 1 shows the outline of the basic structure of one embodiment of the present invention, and FIG.
The figure shows the general structure of the spilled oil recovery vessel, (4) is its front view, and (B) is its plan view. 3 Nioil fence, 4: Spilled oil recovery ship, 5: Powder spreader, 6: Absorption device with float, 7: Roller bottom B1 dispersion device (Ge. Agent: Takeo Yokoya, patent attorney, 5. “]. ;゛.゛Question 112-

Claims (1)

[Claims] 1) A towing boat that tows a rope to form an oil fence on the sea surface and collects the spilled oil within the oil fence; a dispersing means that sprays vermiculite on the collected spilled oil; A spilled oil recovery device characterized in that it comprises a recovery means for recovering the vermiculite after adsorbing oil, and a separation means for separating the spilled oil from the recovered vermiculite.