JP2011011172A - Oil capturing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil capturing tool capable of collecting oil easily at low cost by definitely separating the conventional oil mixed with water by a very easy and simple means.SOLUTION: The oil capturing tool includes a container-like capturer body 1 where at least a watertight vertical wall 11 is provided and a water-permeable support 13 is disposed at its bottom 12 and an oil-water separation filter 2 disposed inside the support 13 formed at the bottom 12 in the capturing tool body 1, where the oil-water separation filter 2 has a pore diameter of 10 to 700 μm and that is composed of a continuous pore hydrophilic synthetic resin sponge with water retention value of 100 to 1,400%.

Description

  The present invention relates to an oil content capturing tool used to separate and capture an oil content floating in water or an oil content mixed with water from water.

  Conventionally, facilities that discharge a large amount of water, such as buildings and factories, have to be equipped with a wastewater treatment facility at the sewage outlet. For example, a large amount of wastewater containing fats and oils is discharged, such as in restaurants and ramen restaurants. In such a case, it is obliged to collect a fat and oil component by providing a grease trap (oil separation tank) at the outlet to the sewage for the purpose of preventing dripping into the sewage.

  By the way, the conventionally used grease trap has an inlet on one side wall of the water storage tank and an outlet on the other side wall. For example, two partition plates are attached with a gap between the bottom of the tank, and a coarse gutter is attached between one inlet side wall and the inlet side partition plate. When the wastewater containing solids and solids flows into the coarse collection port from the inlet, the oil particles with low specific gravity float to the water surface inside the coarse collection by buoyancy and separate large solids at the bottom of the coarse collection. It accumulates and is separated.

  For this reason, it is necessary to collect the oil component that has been separated and deposited in the upper layer, but it is extremely difficult to capture a large amount of oil component from the moisture. A scooping tool such as a handle was picked up and separated using an oil absorbing material such as an oil absorbing sheet. For this reason, the processing work is difficult and requires a lot of labor, and the work area is required. Finally, only the oil content cannot be easily collected, and oil that cannot be completely removed from the water surface is always retained. Causes offensive odor.

  There are also known means for decomposing oil using microorganisms, chemicals, etc., but they require extensive facilities and management and are not suitable for grease traps installed in each store.

  This is the same when, for example, oil spills over a river or the sea.

  The present invention provides an oil-capturing device capable of easily and inexpensively recovering an oil component by reliably separating the oil component mixed with the above-described conventional water by an extremely simple and simple means.

  The oil content capturing device according to the present invention, which has been made to solve the above-mentioned problems, is a container-shaped capturing device body having at least a water-tight vertical wall and a support body through which moisture can pass at the bottom, and the capturing It consists of an oil / water separation filter installed inside the support formed at the bottom of the tool body, and the oil / water separation filter has a pore diameter of 10 to 700 μm and a water retention rate of 100 to 1400% for continuous pore hydrophilic synthesis. It consists of a resin sponge.

  An oil-water separation filter is disposed in which when the mixture of oil and moisture is scraped into a container-shaped trap body, the scooped mixture is disposed at the bottom of the trap body. When this oil / water separation filter is soaked with water before starting the separation work, all of the continuous pores of 10 to 700 μm are filled with water and the water retention rate is as high as 100 to 1400%. It becomes a state. Accordingly, in this state, the mixture of oil and moisture in the filter passes through the filter by gravity through the continuous pores, and the oil remains without passing through the filter.

  In particular, in the present invention, since the filter is formed of a hydrophilic synthetic resin sponge, parts other than the pores are also hydrophilic, so that the surface of the filter is covered with moisture including the pores from the mixed water on the moisture. It is held in a state where the separated oil is placed. Therefore, the oil does not adhere to the surface or the pores are not clogged with oil.

  Further, the continuous pores are preferably about 10 to 700 μm, and if it is smaller than 10 μm, the water permeation resistance is large and requires pressurization or time, and if it exceeds 700 μm, the water retention rate of 100 to 1400% cannot be maintained. .

  Further, in the present invention, when the porosity is 50 to 95%, the transmittance becomes high and separation becomes quick, and a large amount of moisture is exposed on the surface, so that the effect as a filter is improved.

  In particular, when the synthetic resin sponge of the present invention is a porous body of continuous pores made from PVA, it is easy to manufacture and has good water retention, and can be carried out without using harmful substances. In addition, it is possible to easily produce a large number of molded products as well as cloths and plates. Furthermore, the pores are suitable as microbial carriers.

  Of course, the present invention can also be carried out using a thermoplastic resin such as polyurethane sponge as the hydrophilic synthetic resin sponge in the present invention.

  Further, in the present invention, if gripping members such as a grip bar and a handle are attached to the catching tool main body, the scissors are further scooped and the efficiency of separation and opening work is improved.

  Furthermore, when the spout is formed in the trap body, there is no fear of scattering when the oil separated in the trap body is opened, and the support is included in the oil / water separation filter by insert molding. If it is, the support member is unnecessary, and the installation work or maintenance work of the oil / water separation filter is easy.

  According to the present invention, it is possible to separate and capture and collect only the oil component by a simple operation of simply scooping up the oil component floating on the water or the oil component mixed in the water with a simple structure. . It does not require the labor and time required for processing, and even if the volume of oil is large, it is inexpensive and does not require tools or equipment that absorbs oil, does not require an installation place, has a long filter life, and is the most popular home and restaurant It can be used regardless of the situation, and the burden of grease traps installed in restaurants that discharge a large amount of oil can be greatly reduced to save labor and costs.

Explanatory drawing which shows preferable embodiment of this invention. The expanded sectional view of embodiment shown in FIG. Explanatory drawing which shows the use condition of embodiment shown in FIG. Explanatory drawing which shows the isolation | separation effect | action of embodiment shown in FIG. Explanatory drawing which shows different embodiment of this invention. Explanatory drawing which shows further another embodiment of this invention. Explanatory drawing which shows further another embodiment of this invention. Explanatory drawing which shows further another embodiment of this invention. FIG. 9 is a partial view of the embodiment shown in FIG. 8. Explanatory drawing of the use condition of embodiment shown in FIG. Explanatory drawing which shows the use condition from which embodiment shown in FIG. 8 differs. Explanatory drawing of further another embodiment of this invention. Explanatory drawing of the use condition of embodiment shown in FIG.

  FIG. 1 and FIG. 2 show a preferred embodiment of the oil trap according to the present invention, which has at least a water-tight cylindrical vertical wall 11 and has, for example, a net that allows moisture to pass through the bottom 12. The container-shaped catching tool main body 1 in which the support 13 is disposed, and the oil / water separation filter 2 installed inside the support 13 formed on the bottom 12 of the catching tool main body 1, particularly in the present embodiment. Then, a gripping member 15 comprising a spout and a grip rod is attached to the top end of the catching tool body 1 and a net-like presser member placed on the upper surface of the oil / water separation filter 2 placed at the bottom 12 of the catching tool body 1. 16 is arranged and is awakened in a pattern-like shape.

  The oil / water separation filter 2 is, for example, a hydrophilic synthetic resin sponge (trade name, manufactured by Aion Co., Ltd.), which is a porous body made of PVA (polyvinyl alcohol) having a pore diameter of 200 μm, a water retention rate of 1100%, and a porosity of 90%. "Bay router" Product No. F (A)) with a thickness of about 1 mm.

  In addition, the manufacturing method of the hydrophilic synthetic resin sponge which is a porous body which uses PVA (polyvinyl alcohol) as a raw material is well-known, for example, Unexamined-Japanese-Patent No. 7-278343, Unexamined-Japanese-Patent No. 7-165932, Japanese Patent Application 2001. -81227 and the like.

  Next, the usage method of this Embodiment is demonstrated. FIG. 3 shows a case where the oil component 5 floating above the moisture 4 stored in the storage tank 3 such as a grease trap is captured and recovered. (B), (C) in the figure, the oil 5 present in the upper layer in the storage tank 3 is scooped together with the moisture 4, and when it is kept in a substantially horizontal state as shown in the figure (D), only moisture is The oil component 5 passes through the separation filter 2 and is filtered and stored in the trap body 1. Therefore, this is opened and collected in an oil storage container (not shown). This operation is repeated until there is no oil in the storage tank 3. Moreover, when the oil-water separation filter 2 deteriorates after repeated use, it is replaced.

  In the present embodiment, as shown in FIG. 4, the oil-water separation filter 2 is a raw material of PVA (polyvinyl alcohol) that forms the oil-water separation filter 2 with continuous pores 21 filled with moisture 4 including those on the surface. For example, as shown below, the hydrophilic synthetic resin sponge, which is a porous material, is produced by a digging Marl reaction that binds formaldehyde to PVA using an acid as a catalyst, and is made of a partially formalized product (PVAF) of PVA. It has an OH group in the molecule and exhibits strong hydrophilicity.

Formula 1

  Therefore, not only the moisture 4 is supplied and held in the pores 21 of the oil / water separation filter 2, but water is adsorbed over the entire surface including the surface, and a water layer 41 is formed on the surface. Therefore, when mixed water is poured onto the surface, the water 4 is bonded to the water layer 41 covering the surface of the oil / water separation filter 2 and permeates through the pores 21, but the oil 5 is blocked by the water layer 41 and remains as it is. It accumulates on the layer 41 and is separated.

  In this embodiment, a plate-shaped filter having a thickness of 1 mm is used as the oil / water separation filter 2, but it can be molded into a shape that matches the support 13 in advance.

  The oil / water separation filter 2 according to the present invention can be similarly applied to a thermoplastic synthetic resin such as polyurethane sponge as a hydrophilic synthetic resin sponge. The manufacturing method is known and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2004-155886.

  FIG. 5 shows a different embodiment of the present invention, and the overall configuration is substantially the same as that of the embodiment shown in FIGS. 1 and 2, but the support 13 is inserted into the oil / water separation filter 2 by insert molding. The point that is included is different.

  In the present embodiment, since the support body 13 in which the oil / water separation filter 2 is included is supported and reinforced, the support body 13 is not installed on the trap body 1 and manufacturing is easy and maintenance such as cleaning is also easy. It is.

  Further, FIG. 6 shows the trap 1 made of a cylinder instead of the cylinder in the embodiment shown in FIG. 1, and is often used on a straight wall such as a grease trap which is an object to be used. It is easy to crawl along and can be poured out without being scattered using the corners when opening.

  In addition, in the present embodiment, since each vertical wall 11 of the capturing tool 1 is inclined so as to converge toward the bottom portion 12, when the mixture of oil and moisture is swollen, the swollen mixture is in the bottom 12 direction. Separation is further promoted since the pressure is increased.

  FIG. 7 shows still another embodiment of the present invention. A bottom member 18 in which a fitting recess 18 of an oil / water separation filter 2 is formed on a bottom 12 of a catching tool body 1 is detachable by screw parts 19 and 20. The oil-water separation filter 2 is easy to attach and detach, and maintenance such as cleaning is also easy.

  FIG. 8 shows still another embodiment of the present invention. The trapping tool main body has a so-called dustpan shape with a square shape, and a net-like support 13 is formed in an opening formed in a deep portion which is a rear portion of the bottom portion 12. As shown in FIG. 9, a back cover 21 having a fitting portion 17 of the oil / water separation filter 2 formed on the back surface thereof can be opened and closed by a shaft 22, and the open ends are engaged and disengaged by locking members 23 and 24. Normally, when the oil / water separation filter 2 is replaced with the back cover 21 closed as shown in FIG. 9 (a), the back cover 21 is attached as shown in FIG. 9 (b). Open. Therefore, replacement and maintenance of the oil / water separation filter 2 are easy.

  FIG. 10 shows the state of use of the embodiment shown in FIG. 8, and as shown in FIG. 10 (a), a mixture of moisture 4 and oil 5 as shown in FIG. The catcher body 1 scoops up, and as shown in FIG. 10B, the catcher body 1 is tilted rearward, and the water 4 is separated by the oil / water separation filter 2 in which the scooped mixture is disposed along the support 13. Then, it is allowed to flow out as it is, and the oil collected in the trap body 1 can be opened by tilting the trap body 1 toward the tip side.

  In particular, in the present embodiment, for example, a mechanical trap installed in the storage tank 3 can also be used. In addition, although the rotational type was shown in this figure, it is not restricted to this, For example, it can implement similarly about the scooping type (not shown) which combined rotation and reciprocation.

  Furthermore, FIG. 12 shows a further different embodiment of the present invention. The overall structure is similar to that of the embodiment shown in FIG. The support 13 and the oil / water separation filter 2 are disposed on at least a part of the bottom surface (preferably the central portion) or the entire surface.

  This embodiment can be used in the same manner as in FIG. 10 showing the use state of the embodiment shown in FIG. 9, but as shown in FIG. As shown in FIG. 13 (a), the trapping tool body 1 submerged in the storage tank 3 is lifted as it is as shown in FIG. 13 (b). The operation 5 can scoop up the oil 5 and the work efficiency is very good.

  DESCRIPTION OF SYMBOLS 1 Capture tool main body, 2 Oil-water separation filter, 11 Vertical wall, 12 Bottom part, 13 Support body, 14 Spout, 15 Grasp member

Claims (7)

  A container-shaped catching tool main body having at least a water-tight vertical wall and a support through which moisture can pass at the bottom, and an oil-water separation filter installed inside the support formed on the bottom of the catching tool main body An oil-capturing device characterized in that the oil-water separation filter comprises a hydrophilic synthetic resin sponge having continuous pores having a pore diameter of 10 to 700 μm and a water retention rate of 100 to 1400%.   2. The oil trap according to claim 1, wherein a gripping member is attached to the scooping tool body.   The oil catcher according to claim 1, wherein a spout is formed in the catcher body.   The oil content capturing tool according to claim 1, 2 or 3, wherein the support body is included in the oil / water separation filter by insert molding.   The oil-capturing device according to claim 1, 2, 3, or 4, wherein the oil-water separation filter has a porosity of 50 to 95%.   The oil-capturing device according to claim 1, 2, 3, 4 or 5, wherein the hydrophilic synthetic resin sponge is a porous body having continuous pores made of PVA as a raw material. The oil trap according to claim 1, 2, 3, 4, 5, or 6, wherein the hydrophilic synthetic resin sponge is a polyurethane sponge.

Images