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KR-102960872-B1 - Oil skimmer

KR102960872B1KR 102960872 B1KR102960872 B1KR 102960872B1KR-102960872-B1

Abstract

The present invention relates to an oil skimmer and provides an oil skimmer characterized by comprising: a main body that is vertically installed in an installation area and has an internal receiving space formed therein and has an open bottom; an oil conveyor belt formed by a plurality of metal unit plates hinge-connected to each other in an endless track shape, which is rotatably arranged in a vertical direction within the receiving space and has one lower side exposed to the outside through the bottom of the main body; a belt roller that is rotatably installed on one upper side of the receiving space of the main body, which supports the oil conveyor belt by being arranged to wrap around the outer surface of the upper part of the oil conveyor belt and rotates the oil conveyor belt; and a scraper that is installed on one side of the main body, which is installed at a downward inclination toward the outer direction of the main body, and has one end in close contact with the surface of the oil conveyor belt. According to the present invention as described above, the oil conveyor belt can be used semi-permanently, and since a separate tension-maintaining means to maintain the tension of the oil conveyor belt is not required, the cost of maintaining and managing it can be significantly reduced. Furthermore, even after prolonged use, the flatness of the oil conveyor belt is maintained, thereby significantly improving oil removal efficiency.

Inventors

  • 이득귀

Assignees

  • 주식회사 한성GT

Dates

Publication Date
20260507
Application Date
20200603

Claims (4)

  1. A main body that is vertically installed in the installation target area, has an internal receiving space formed, and has an open bottom; An oil conveyor belt comprising a plurality of metal unit plates hinge-connected to each other in an endless track shape, with a plurality of hinge axes formed on the inner surface, arranged to be rotatable in a vertical direction within the receiving space, and one side of the lower portion exposed to the outside through the lower portion of the main body; A belt roller rotatably installed on one side of the upper portion of the receiving space of the main body, positioned to surround the upper portion of the oil conveying belt and support it, and rotating the oil conveying belt while rotating; and It includes a scraper installed on one side of the main body, installed at a downward inclination toward the outer direction of the main body, and having one end in close contact with the surface of the oil conveyor belt. The above belt roller is A roller body rotatably installed on one side of the upper portion of the receiving space of the main body and positioned to surround the upper portion of the oil conveying belt with its outer surface to support it; and It includes a power supply means installed on one side of the main body, with one side connected to the roller body to provide rotational force to the roller body, The above roller body A pair of support plates spaced apart from each other; and It is configured to include a support unit, wherein both ends are respectively connected to the inner surface of the pair of support plates, and a plurality of such units are radially connected along the inner circumference of the support plates to support one side of the inner surface of the oil conveyor belt. The above support unit is A first support wing having both ends coupled to the inner surface of the pair of support plates and supporting one side of the hinge axis; and Both ends are coupled to the inner surface of the pair of support plates, wherein one side is coupled at a certain distance from one side of the first support wing with the hinge axis in between, and includes a second support wing that supports the other side of the hinge axis. An oil skimmer characterized in that the first support wing and the second support wing are formed radially along the inner circumference of the support plate.
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Description

Oil skimmer The present invention relates to an oil skimmer, and more specifically, to an oil skimmer that allows the oil conveyor belt to be used semi-permanently and does not require a separate tension-maintaining means to maintain the tension of the oil conveyor belt, thereby significantly reducing the cost of maintenance and management, and also maintains the flatness of the oil conveyor belt even after prolonged use, thereby significantly improving oil removal efficiency. Typically, the cutting fluid discharged during the cutting process is mixed with oils such as lubricating oil used to ensure the smooth operation of machine tools and rust-preventive oil adhering to the material being cut. Cutting fluid is not discarded after a single use but is reused after undergoing a purification process; however, if oil is introduced and mixed into the cutting fluid, not only does the cutting fluid deteriorate easily, but the precision of the cutting process is also significantly reduced. In addition, when a high-temperature environment is created during the cutting process, heat-sensitive surfactants are destroyed, causing the oil to separate from the cutting fluid itself and float. This floating oil is a mixture of lubricating oil, rust-preventive oil, hydraulic oil, etc., and has high surface adsorption properties, so it adheres to machine tools as residue, causing tool breakage and shortening of lifespan. Furthermore, it not only generates odors due to bacteria but also causes skin diseases upon contact with the skin and can lead to defects during product processing. If discharged, it can have a significant impact on environmental pollution, so it must be collected. For this reason, the relevant industry uses a device called an oil skimmer to remove floating oil from the cutting fluid discharged through the cutting process. Figure 1 is a drawing illustrating a conventional oil skimmer. As shown in FIG. 1, a conventional oil skimmer (100) comprises a housing (110) having an open bottom and an internal receiving space (111), a roller unit (120) rotatably installed inside the housing (110), an endless track-shaped oil conveyor belt (130) formed so as to surround the roller unit (120) and having a lower end exposed to the outside of the housing (110), a pressure roller (140) installed inside the oil conveyor belt (130) within the housing (110) and having a lower end elastically press the inner surface of the lower end of the oil conveyor belt (130) downward, and a scraper (150) installed on one side of the main body at a downward slope toward the outside and in close contact with the outer surface of the oil conveyor belt (130). When examining the operation of such a conventional oil skimmer (100), a tank (not shown) containing waste oil is placed below the oil conveyor belt (130), an oil-water separator is placed on the outer side of the scraper (150), and when the roller unit (120) is driven to rotate the oil conveyor belt (130), one side of the oil conveyor belt (130) is immersed in the waste oil contained in the tank, and oil is attached to the surface of the oil conveyor belt (130). Then, as the oil conveyor belt (130) continuously rotates, the oil attached to the surface of the oil conveyor belt (130) is removed by the scraper (150), and the removed oil is moved along the inclined scraper (150) to the oil-water separator, where the waste oil is separated into cutting fluid and other floating substances and floating oil, and the cutting fluid from which floating substances and floating substances have been removed is reused. However, since the conventional oil skimmer (100) is used with waste oil attached to the surface of the oil conveyor belt (130), which is made of synthetic resin material such as nonwoven fabric, there was a problem in that when used for a long time, the oil conveyor belt (130) hardened so that rotational movement could not be performed properly, or its shape was deformed and flatness was reduced, which significantly lowered the efficiency of oil removal by the scraper (150). In addition, the conventional oil skimmer (100) requires a certain tension to maintain the flatness of the oil conveyor belt (130), and a pressure roller (140) is used to maintain the tension of the oil conveyor belt (130). As the pressure applied by the pressure roller (140) is continuously applied to the oil conveyor belt (130), there was a problem in that the durability of the oil conveyor belt (130) was further reduced. Therefore, conventional oil skimmers (100) had the problem that maintenance was very cumbersome and required significant costs as the oil conveyor belt (130) had to be replaced periodically. FIG. 1 is a drawing illustrating a conventional oil skimmer. FIG. 2 is a drawing illustrating an oil skimmer according to an embodiment of the present invention. FIG. 3 is a perspective view of an oil conveyor belt according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of a belt