JPH09206591A - Floating type oil-absorbing sheet and floating type oil-absorbing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a floating type oil-absorbing sheet which sufficiently absorbs oil and does not sink in water by forming a sheet type oil-absorbing layer comprising a natural or synthetic fiber and connecting a float to a part of the oil-absorbing layer. SOLUTION: This floating type oil-absorbing sheet is equipped with of a restangular sheet type oil-absorbing layer 10 comprising a cellulose fiber and with a foamed styrol float 20 connected to a part of the oil-absorbing layer. The float 20 is arranged to form a cross on the surface of the oil-absorbing layer 10, however, it is sufficient that the float 20 is arranged on a part of the oil-absorbing layer 10. For example, the float 20 may be arranged on one side edge 10a of the oil-absorbing layer 10. Thereby, the obtd. sheet has both of the floating property on water and the oil-absorbing property, it can absorb an enough amt. of oil flowing in water, and even after the sheet absorbs oil, it does not sink in the water. By connecting plurality of the floating type oil-absorbing sheets with ropes to constitute a floating type oil-absorbing tool, these sheets can be easily recovered after the absorption of oil, and for example, the sheets can be recovered only by pulling and winding around any oil-absorbing sheet as a base point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating oil-absorbing sheet and a floating oil-absorbing tool. TECHNICAL FIELD The present invention relates to a floating oil-absorbing sheet and a floating oil-absorbing tool formed by connecting the sheets.

[0002]

2. Description of the Related Art In the modern industrial world, the role of petroleum resources plays a significant role, and the use of such petroleum resources is
It covers a wide range such as fuel and lubricating oil for automobiles and various machines. Since petroleum resources are related to various industries, fuel oil and lubricating oil may leak and pollute the surrounding environment when performing various operations. Care was taken to prevent oil leaks and spills and to minimize the spread if spilled. For example, if oil such as heavy oil spills into the sea or river due to a tanker contact accident, create an oil fence with a rubber sheet with a float to surround the oil spill area or spray a surfactant on the oil spill. In addition, an oil-absorbing sheet made mainly of cellulose is supplied to prevent diffusion and absorption of spilled oil.

[0003]

However, in the method of introducing the cellulose oil-absorbing sheet as described above, since the sheet also absorbs moisture together with the oil content, the sheet is immersed in the water during or after the oil absorption. However, during oil absorption, there is a problem that the oil content present in the upper layer of the water layer cannot be sufficiently absorbed, and even after sufficient oil absorption, it becomes extremely difficult to recover this oil absorption sheet. It was The present invention has been made in view of such problems of the related art, and the purpose thereof is to:
It is intended to provide a floating oil-absorbing sheet and a floating oil-absorbing tool that sufficiently absorb oil and are not submerged in water.

[0004]

Means for Solving the Problems As a result of intensive studies to achieve the above-mentioned object, the inventors of the present invention produced an oil-absorbing sheet using a float and, by appropriately connecting them, The inventors have found that the object can be achieved, and have completed the present invention. That is, the floating oil-absorbing sheet of the present invention is an oil-absorbing sheet having a floating property in water, and comprises a sheet-shaped oil absorbing layer made of natural or synthetic fibers and a float connected to a part of this oil absorbing layer. It is characterized by being provided.
Further, the floating oil absorbing tool of the present invention is characterized in that a plurality of the floating oil absorbing sheets described above are connected.

[0005]

In the floating oil-absorbing sheet of the present invention, since the sheet-shaped oil-absorbing layer is provided with the float, submersion in water is avoided. Further, the floating oil-absorbing tool of the present invention is constituted by connecting floating oil-absorbing sheets, so that it is easy to recover after absorbing oil, for example, pulling with any floating oil-absorbing sheet as a base point, It can be collected simply by winding it up.

The floating oil absorbing sheet of the present invention will be described in detail below. The buoyant oil absorbing sheet of the present invention comprises an oil absorbing layer made of natural or synthetic fibers and having a sheet shape, and a float partially attached to the oil absorbing layer. here,
The material of the oil absorbing layer is not particularly limited as long as it has an oil absorbing ability, and examples thereof include cellulose, polypropylene, polyethylene and the like, but it is said that good oil absorbing performance and low combustion calorific value are obtained. From the viewpoint, cellulosic fibers are preferable. Further, the oil absorbing performance can be improved by including an oil absorbing filler such as polyacrylic, polyacrylic / butadiene / styrene, and sulfonated polypropylene in the oil absorbing layer.

On the other hand, examples of the float include hollow materials made of various materials such as metal, glass, cloth, resin, styrofoam, and resin sheets containing air bubbles (so-called air cap sheets and mirror mats). . Further, the buoyancy of the float can be appropriately adjusted according to the weight and size of the oil absorbing layer.

Next, the manner of connecting the oil absorbing layer and the float will be described. In the present invention, it suffices that this float be connected to a part of the oil absorbing layer. For example, when the oil absorbing layer has a rectangular shape, at least one side edge of the rectangular sheet-like oil absorbing layer, The float may be attached to any position on the front surface and / or the back surface. When the float is attached to the side edge portion, the area covered by the oil absorption layer by the float can be reduced, and the oil absorption capacity of the oil absorption layer is less likely to decrease. Further, when the float has a sheet-like shape, the sheet-like float may be sandwiched between two sheet-like oil absorbing layers. In such a structure, the float is composed of an air cap sheet or a mirror mat. Sometimes especially effective. The method for connecting the float and the oil absorbing layer is not particularly limited, and examples include fastening with a string material, bonding with an adhesive or the like, and fixing with a hook, a pin, or the like.

Next, the floating oil absorber of the present invention will be described in detail. This oil absorbing tool is formed by connecting a plurality of the floating oil absorbing sheets described above, and this connection can be performed by different oil absorbing layers, floats, or oil absorbing layers and floats in different floating oil absorbing sheets. Further, as the connecting material, a cord material such as a rope or a hook can be preferably used, and as the material of the connecting material, a material having a small specific gravity, for example, in order not to reduce the buoyancy of the oil absorbing tool, It is preferable to use cellulosic fibers and various synthetic resins.

Further, when the oil absorbing sheets are connected by connecting the floats to each other, the rope may be liquid-tightly penetrated through the hollow float.
It is also possible to adopt a configuration in which a rope is inserted into a tubular cloth and both ends thereof are fastened with a string or the like in a state where the tubular cloth is filled with air. With such a configuration, generation of toxic gas or the like can be avoided even when the oil-absorbing device that has absorbed the oil component is burned as it is.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail by embodiments with reference to the drawings. (Embodiment 1) FIG. 1A is a plan view showing an embodiment of a floating oil absorbing sheet of the present invention. In the figure, the oil absorbing sheet includes a rectangular sheet-like oil absorbing layer 10 made of cellulosic fibers, and a polystyrene foam float 20 fixed to the surface of the oil absorbing layer 10. Therefore, the oil absorbing sheet of the present embodiment has both floating property and oil absorbing power with respect to water, and sufficiently absorbs the oil content that has flowed out into water,
Moreover, it does not submerge even after absorbing oil.

In this embodiment, the float 20
Are arranged in a cross shape on the surface of the oil absorption layer 10, but it is sufficient that the float 20 is arranged in a part of the oil absorption layer 10, and for example, one side edge portion 10 of the oil absorption layer 10 is provided.
It is also possible to arrange the float 10 in a. As described above, by disposing the float 20 only on one side edge portion 10a, the area where the float 20 covers the oil absorbing layer 10 can be reduced, and thus there is an advantage that the oil absorbing force can be sufficiently exerted. Further, as described above, it is sufficient to partially dispose the float 20 in the oil absorbing layer 10. Therefore, it is necessary to increase the buoyancy of the oil absorbing sheet by using the arrangement shown in FIGS. 10B and 10C. Is also possible.

(Embodiment 2) FIG. 2 is a partial sectional view showing another embodiment of the floating oil absorbing sheet of the present invention. In the figure, in this oil absorbing sheet, a float 22 made of an air cap sheet is held by the oil absorbing layer 10. As shown in the present embodiment, the float may have a sheet shape, and according to the configuration of the present embodiment,
Since the area of the oil absorbing layer 10 can be increased, the oil absorbing power of the floating oil absorbing sheet can be increased.

(Embodiment 3) FIG. 3 shows an embodiment of the floating oil absorbent tool of the present invention. In the figure, this floating oil-absorbing tool comprises a plurality of floating oil-absorbing sheets 1 connected by ropes 30, and the oil-absorbing sheet 1 is a part of the oil-absorbing layer 10 like the above-mentioned oil-absorbing sheet. The streamlined hollow float 24 is connected to both side edge portions of the streamlined hollow float 24.

In the present embodiment, the oil absorbing layers 10 are connected to each other via the rope 30, and if such an oil absorbing tool is put into the oil outflow region to absorb oil, the rope 30 or any other oil absorbing material is absorbed. It is possible to wind the oil absorbing sheet 1 from the starting point, and it is possible to easily collect the oil absorbing tool. In addition, since the float 24 has a streamlined shape, there is an advantage that it is less likely to receive water resistance during recovery and winding.

(Embodiment 4) FIG. 4 is a perspective view showing another embodiment of the floating oil absorbing tool of the present invention. In the present embodiment, this oil absorbing tool is configured by connecting a plurality of oil absorbing sheets 2 with ropes 30. Also, the oil absorbing sheet 2
In the same manner as the third embodiment, the floats 26 are arranged on both side edges, but the oil absorbing sheets 2 are connected to each other by the float 2
This is done by a rope 30 passing through 6. Further, as shown in FIG. 5, the float 26 is formed by inserting the rope 30 into a tubular cloth and sealing the rope 30 together with both ends of the tubular cloth filled with air. ing.

According to the present embodiment, it is easy to wind and collect as in the third embodiment, and since the float 26 is formed of cloth, it is possible to incinerate the oil absorbing tool as it is after the collection. There is also an advantage that no toxic gas is generated and the combustion energy at that time can be reduced, which contributes to energy saving.

[0018]

【Example】

(Example 1) The oil absorption layer 10 is made of natural cellulose fiber 1
A test piece having a size of 0 cm × 10 cm × 4 mm (thickness) and having the same shape as the oil absorbing sheet 2 constituting the oil absorbing tool shown in the fourth embodiment was used. On the other hand, after pouring water into the water tank to make the water phase 25 cm × 50 cm × 30 cm (depth), various oils shown in Table 1 were injected, and the oil film was 2 m.
A test tank adjusted to have a thickness of m was prepared. The test piece was placed in this test tank, left for 1 hour, pulled up, drained for 5 minutes, and the amount of oil absorbed by the test piece was measured. Table 1 shows the obtained results. (Example 2) The same operation as in Example 1 was repeated except that the oil absorbing layer 10 was made of polypropylene, and the obtained results are shown in Table 1.

Comparative Example 1 A sheet made of natural cellulose fiber was cut into a size of 10 cm × 10 cm × 4 mm (thickness) to obtain a test piece. Using the obtained test piece, the amount of oil was measured in the same manner as in Example 1. Table 1 shows the obtained results. (Comparative Example 2) 10c sheet made of polypropylene
A test piece was obtained by cutting into a size of m × 10 cm × 4 mm (thickness). Using the obtained test piece, the amount of oil was measured in the same manner as in Example 1. Table 1 shows the obtained results.

[0020]

[Table 1]

From Table 1, Example 1 within the scope of the present invention
It can be seen that the oil absorption properties of Nos. 2 and 2 are better than those of Comparative Examples 1 and 2, respectively. The test pieces of Comparative Examples 1 and 2 were
Although it was submerged 1 hour before, the test pieces of Examples 1 and 2 were not submerged.

Although the present invention has been described in detail with reference to the embodiments and examples, the present invention is not limited to these embodiments and the like, and various modifications can be made within the scope of the gist of the present invention. . For example, the materials and shapes of the oil absorption layer 10 and the float 20 can be changed as appropriate.
Further, a sheet-shaped float and a streamlined float can be combined, and the floats 24 and 26 can be attached to the side edge portions of the oil absorbing sheet of the second embodiment.

[0023]

As described above, according to the present invention,
An oil-absorbing sheet was prepared using a float, and since it was decided to appropriately connect these, the oil was sufficiently absorbed,
Moreover, it is possible to provide a floating oil-absorbing sheet and a floating oil-absorbing tool that are not submerged in water.

[Brief description of drawings]

FIG. 1 is a plan view showing some embodiments of a floating oil absorbing sheet of the present invention.

FIG. 2 is a partial cross-sectional view showing another embodiment of the floating oil absorbing sheet of the present invention.

FIG. 3 is a perspective view showing an embodiment of a floating oil absorbing tool of the present invention.

FIG. 4 is a perspective view showing another embodiment of the floating oil absorbing tool of the present invention.

FIG. 5 is a sectional view of the float.

[Explanation of symbols]

1, 2 ... Floating oil absorbing sheet, 10 ... Oil absorbing layer, 20, 2
2,24,26 ・ ・ ・ Float, 30 ・ ・ ・ Rope

Claims (8)

[Claims] 1. An oil-absorbing sheet having a floating property in water, comprising a sheet-like oil-absorbing layer made of natural or synthetic fibers, and a float connected to a part of this oil-absorbing layer. Floating oil absorption sheet. 2. The floating oil-absorbing sheet according to claim 1, wherein the oil-absorbing layer has a substantially rectangular shape, and the float is connected to at least one side edge portion of the rectangular oil-absorbing layer. 3. The floating oil absorbing sheet according to claim 1, wherein the oil absorbing layer has a substantially rectangular shape, and the float is connected to a front surface and / or a back surface of the rectangular oil absorbing layer. 4. The floating oil-absorbing sheet according to claim 1, wherein the float has a sheet shape and is held by the oil-absorbing layer. 5. The foam is styrofoam and / or
Alternatively, the floating oil absorbing sheet according to any one of claims 1 to 4, wherein the floating oil absorbing sheet comprises an air cap sheet. 6. A floating oil-absorbing tool comprising a plurality of floating oil-absorbing sheets according to claim 1 connected to each other. 7. The floating oil absorbing tool according to claim 6, wherein the floating oil absorbing sheet is connected by connecting the floats with a connecting member. 8. The floating oil-absorbing device according to claim 7, wherein the float is a hollow body, and the hollow body floats are liquid-tightly penetrated by the connecting member.