A simple oil-water separation device

Abstract

This utility model discloses a simple oil-water separation device, relating to the field of food waste treatment technology. It includes a cylinder, a solid-liquid separation component, and an overflow cylinder. The cylinder has a cavity comprising a first separation zone and a second separation zone, with the first separation zone located above the second separation zone. The solid-liquid separation component is disposed in the first separation zone and has a liquid outlet communicating with the second separation zone. The overflow cylinder is disposed in the second separation zone, with an opening at its upper end and a first discharge port. The cylinder also has a second discharge port and a third discharge port. Vertically, the second discharge port is lower than the upper surface of the overflow cylinder, and the third discharge port is lower than the second discharge port. This simple oil-water separation device can more conveniently separate wastewater, grease, and residue from food waste.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment technology, and in particular to a simple oil-water separation device. Background Technology

[0002] Food waste refers to food scraps, leftover food products, food processing waste, and inedible animal and vegetable oils and various oil-water mixtures generated in daily life by households, schools, government agencies, public canteens, and the catering industry. Currently, food waste is often centrally processed. The conventional method in centralized processing is to directly ferment and compost the food waste and oil-water mixtures, which is inefficient and has a low degree of recycling. To further utilize food waste, pre-treatment is necessary, namely solid-liquid separation followed by oil-water separation, using different processes to treat the separated materials for targeted recycling. However, oil-water separation of food waste is complex and cannot be easily and efficiently completed in a single pre-treatment step. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a simple oil-water separation device that can more conveniently separate wastewater, grease, and residue from kitchen waste.

[0004] A simplified oil-water separation device according to an embodiment of the present invention includes: a cylinder having a cavity, the cavity including a first separation zone and a second separation zone, the first separation zone being located above the second separation zone; A solid-liquid separation component is disposed in the first separation zone, and the solid-liquid separation component has a liquid outlet that communicates with the second separation zone; An overflow cylinder is disposed in the second separation zone, the upper end of the overflow cylinder is open, and the overflow cylinder is provided with a first discharge port; The cylinder is further provided with a second discharge port and a third discharge port. In the vertical direction, the second discharge port is lower than the upper end face of the overflow cylinder, and the third discharge port is lower than the second discharge port.

[0005] The simplified oil-water separation device according to this utility model embodiment has at least the following beneficial effects: When a mixture of kitchen waste is poured into the solid-liquid separation component, the solids in the kitchen waste are retained in the solid-liquid separation component, while the liquid enters the second separation zone of the cylinder through the liquid outlet. The liquid is a mixture of grease and wastewater. As the liquid continuously enters the second separation zone of the cylinder, the liquid level gradually rises, and simultaneously, the grease and wastewater gradually separate due to their immiscibility. The less dense grease overflows into the overflow cylinder as the liquid level rises. After a certain period of time, the grease can be discharged from the first discharge outlet, and the wastewater can be discharged from the second discharge outlet. The solids can be directly scooped out from the feed inlet of the solid-liquid separation component.

[0006] According to some embodiments of the present invention, the second separation zone is provided with an adjustment device, the adjustment device is fixed to the inner wall of the cylinder, the adjustment device has a vertical adjustment stroke, and the overflow cylinder is connected to the adjustment device in a transmission manner.

[0007] According to some embodiments of the present invention, the adjusting device includes a slide rail and a slider. The slide rail is disposed on the inner wall of the cylinder and is vertically arranged. The slider is fixed to the overflow cylinder and is slidably connected to the slide rail.

[0008] According to some embodiments of the present invention, the upper end face of the overflow cylinder is provided with a water weir, and the water weir has a sawtooth structure.

[0009] According to some embodiments of the present invention, the solid-liquid separation assembly includes multiple side plates and a bottom plate, the surface of the side plates intersects with the surface of the bottom plate, the multiple side plates and the bottom plate together form a bearing frame, and the bottom plate is provided with multiple through holes.

[0010] According to some embodiments of the present invention, in the projection of the cylinder in the cross-sectional direction, the projected area of ​​the bottom plate is smaller than the cross-sectional area of ​​the cylinder.

[0011] According to some embodiments of the present invention, the inner wall of the cylinder is provided with a heating component, which is located in the second separation zone.

[0012] According to some embodiments of the present invention, a sedimentation hopper is provided at the bottom of the cylinder.

[0013] According to some embodiments of the present invention, the cylinder is equipped with a level gauge.

[0014] According to some embodiments of the present invention, the cylinder is provided with an overflow port, the overflow port is located below the solid-liquid separation component, and the overflow port is located above the overflow cylinder.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic cross-sectional view of a simplified oil-water separation device according to an embodiment of the present invention; Figure 2 This is a top view of a simplified oil-water separation device according to an embodiment of the present invention.

[0017] Icon labels: Cylinder 100, second discharge port 110, third discharge port 120, sedimentation hopper 130, overflow port 140, solid-liquid separation component 200, side plate 210, bottom plate 220, overflow cylinder 300, first discharge port 310, regulating device 400, heating component 500. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] As described in the background section, most existing methods for treating food waste involve directly processing food scraps and mixtures of oil and water, such as bio-fermentation composting. These methods fail to effectively utilize or treat the liquid components of food waste. Separating the solids, wastewater, and grease from food waste can improve the efficiency and effectiveness of its treatment.

[0023] For example, after solid-liquid separation, the solids in food waste are more concentrated, which is beneficial for the activity and reproduction of microorganisms during bio-fermentation composting, thus improving fermentation efficiency. Separating grease from wastewater in the liquid phase of food waste can reduce the processing pressure on wastewater treatment equipment; the grease can be converted into biodiesel through chemical or biological processes, or undergo other recycling treatments.

[0024] Reference Figure 1 As shown, a simple oil-water separation device according to an embodiment of the present invention includes a cylinder 100, a solid-liquid separation component 200, and an overflow cylinder 300.

[0025] The cylinder 100 has a cavity, which includes a first separation zone and a second separation zone, with the first separation zone located above the second separation zone. Food waste undergoes solid-liquid separation in the first separation zone, and wastewater and grease are separated in the second separation zone. Since the first separation zone is located above the second separation zone, the separated liquid directly enters the second separation zone under gravity after solid-liquid separation, eliminating the need for an additional power source to transport the liquid.

[0026] Specifically, the solid-liquid separation component 200 is disposed in the first separation zone, and the solid-liquid separation component 200 has a liquid outlet that communicates with the second separation zone. Kitchen waste is poured into the solid-liquid separation component 200 to separate the solids and liquids. Preferably, the solids are temporarily retained in the solid-liquid separation component 200, while the liquid is transferred from the liquid outlet to the second separation zone.

[0027] It should be understood that the solid-liquid separation component 200 can use filtration to separate solids and liquids in kitchen waste. For example, solids in kitchen waste are intercepted on a mesh plate, while liquids pass through the mesh of the mesh plate.

[0028] An overflow cylinder 300 is disposed in the second separation zone. The upper end of the overflow cylinder 300 is open, and the overflow cylinder 300 is provided with a first discharge port 310. The cylinder body 100 is also provided with a second discharge port 110 and a third discharge port 120. In the vertical direction, the second discharge port 110 is lower than the upper end face of the overflow cylinder 300, and the third discharge port 120 is lower than the second discharge port 110.

[0029] The liquid separated from the food waste by the solid-liquid separation component 200 is collected in the second separation zone of the cylinder 100. As the liquid volume increases, the liquid level begins to rise. Simultaneously, since the liquid mainly consists of wastewater and grease, which are immiscible, the wastewater and grease gradually separate into layers, with the less dense grease on top and the denser wastewater at the bottom. The liquid level gradually rises until the grease layer overflows into the overflow cylinder 300, which effectively collects the grease and discharges it through the first discharge port 310. The wastewater remains in the second separation zone of the cylinder 100 and is discharged through the second discharge port 110. It is important to understand that when discharging wastewater through the second discharge port 110, the discharge flow rate needs to be controlled to avoid excessive flow causing the wastewater to drain too quickly, resulting in a drop in the liquid level and ultimately causing the upper layer of grease to be discharged from the second discharge port 110 as well. Therefore, preferably, the discharge flow rate of the second discharge port 110 should be controlled to maintain a stable liquid level in the second separation zone.

[0030] It should be understood that fine residues and other solids from food waste also enter the second separation zone through the liquid outlet of the solid-liquid separation component 200. The solids in the second separation zone will accumulate at the bottom of the cylinder 100 after sedimentation; therefore, the third discharge port 120 is located below the second discharge port 110 for discharging solids. Preferably, the third discharge port 120 is located closer to the bottom of the cylinder 100.

[0031] It is understood that the second separation zone is equipped with an adjustment device 400, which is fixed to the inner wall of the cylinder 100. The adjustment device 400 has a vertical adjustment stroke, and the overflow cylinder 300 is connected to the adjustment device 400 in a transmission manner.

[0032] The adjusting device 400 can adjust the position of the overflow cylinder 300, that is, change the height of the upper surface of the overflow cylinder 300, and control the height of the liquid level during overflow. For example, if the adjusting device 400 controls the overflow cylinder 300 to move upward, the liquid needs to fill a larger volume of the second separation zone, requiring a longer time, which is more conducive to the stratification of wastewater and grease in the liquid, minimizing the amount of wastewater overflowing into the overflow cylinder 300. Conversely, if the adjusting device 400 controls the overflow cylinder 300 to move downward, the liquid fills a smaller volume of the second separation zone, and the liquid level rises more easily, allowing grease to overflow into the overflow cylinder 300, enabling rapid stratification of wastewater and grease.

[0033] It is understood that the adjusting device 400 includes a slide rail and a slider. The slide rail is set on the inner wall of the cylinder 100 and is set vertically. The slider is fixed to the overflow cylinder 300 and is slidably connected to the slide rail.

[0034] The slide rail provides vertical guidance, and the slider moves along the slide rail. It's important to understand that the height of the overflow cylinder 300 can be changed manually, or it can be automatically controlled and adjusted by adding a drive assembly. If a drive assembly is added, it can simply drive the slider to move.

[0035] It is understandable that the upper end face of the overflow cylinder 300 is provided with a water weir, which has a sawtooth structure.

[0036] The weir further prevents solids floating on the surface of the grease from entering the overflow cylinder 300. It should be understood that if there is too much animal fat in the kitchen waste, the separated grease is prone to caking into lumps at low temperatures, and the weir can prevent the caking grease from entering the overflow cylinder 300.

[0037] It is understood that the solid-liquid separation assembly 200 includes multiple side plates 210 and a bottom plate 220. The surface of the side plate 210 intersects with the surface of the bottom plate 220. The multiple side plates 210 and the bottom plate 220 together form a support frame. The bottom plate 220 is provided with multiple through holes.

[0038] Food waste is placed into the receiving frame, and the liquid flows out from the through hole in the bottom plate 220 and enters the second separation zone of the cylinder 100. The side plates 210 are designed with different heights to control the volume of the receiving frame. For example, while keeping the area of ​​the bottom plate 220 unchanged, increasing the height of the side plates 210 allows more food waste to be placed into the receiving frame.

[0039] It is understandable that, in the projection of the cross-section of the cylinder 100, the projected area of ​​the bottom plate 220 is smaller than the cross-sectional area of ​​the cylinder 100.

[0040] After food waste is placed into the receiving frame, it accumulates on the surface of the bottom plate 220, making it difficult for airflow to pass through. If the bottom plate 220 completely covers the opening of the cylinder 100, the cavity of the cylinder 100 will be difficult to connect with the outside air, easily creating a negative pressure space in the second separation zone, resulting in slower discharge of grease or wastewater. In the projection of the cross-section of the cylinder 100, the projected area of ​​the bottom plate 220 is smaller than the cross-sectional area of ​​the cylinder 100, meaning that the cylinder 100 retains an opening to connect with the outside air to balance the air pressure inside the cylinder 100 with the external environment.

[0041] It is understandable that the inner wall of the cylinder 100 is provided with a heating component 500, which is located in the second separation zone.

[0042] If there is too much animal fat in the food waste, the separated fat is prone to caking at low temperatures. The heating element 500 can heat the liquid in the second separation zone, maintaining the temperature within a suitable range to prevent the fat from caking at low temperatures.

[0043] Understandably, a sedimentation hopper 130 is provided at the bottom of the cylinder 100.

[0044] Fine residues and other solids from food waste also enter the second separation zone through the liquid outlet of the solid-liquid separation component 200. The solids in the second separation zone settle and accumulate at the bottom of the cylinder 100. A sedimentation hopper 130 is located at the bottom of the cylinder 100. Guided by the hopper-shaped structure of the sedimentation hopper 130, the solids gradually move towards the center within the sedimentation hopper 130. The third discharge port 120 can be located at the bottom of the sedimentation hopper 130 for easy collection and discharge of solids.

[0045] Understandably, the cylinder 100 is equipped with a level gauge. This facilitates observation of the liquid level inside the cylinder 100. Preferably, a magnetic float level gauge is used.

[0046] It is understood that the cylinder 100 is provided with an overflow port 140, which is located below the solid-liquid separation component 200 and above the overflow cylinder 300.

[0047] When too much liquid accumulates inside the cylinder 100, causing the liquid level to rise rapidly, an overflow port 140 can be provided on the cylinder 100 to control the liquid overflow path in order to prevent the liquid from overflowing from the top of the cylinder 100.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A simple oil-water separation device, characterized by, include: A cylindrical body (100) having a cavity, the cavity including a first separation region and a second separation region, the first separation region being located above the second separation region; A solid-liquid separation component (200) is disposed in the first separation zone and has a liquid outlet that communicates with the second separation zone. An overflow cylinder (300) is provided in the second separation zone, the upper end of the overflow cylinder (300) is open, and the overflow cylinder (300) is provided with a first discharge port (310). The cylinder (100) is further provided with a second discharge port (110) and a third discharge port (120). In the vertical direction, the second discharge port (110) is lower than the upper end face of the overflow cylinder (300), and the third discharge port (120) is lower than the second discharge port (110).

2. The simple oil-water separation device according to claim 1, characterized in that, The second separation zone is provided with an adjustment device (400), which is fixed to the inner wall of the cylinder (100). The adjustment device (400) has a vertical adjustment stroke, and the overflow cylinder (300) is connected to the adjustment device (400) in a transmission connection.

3. The simple oil-water separation device according to claim 2, characterized in that, The adjusting device (400) includes a slide rail and a slider. The slide rail is disposed on the inner wall of the cylinder (100) and is vertically arranged. The slider is fixed to the overflow cylinder (300) and is slidably connected to the slide rail.

4. The simple oil-water separation device according to claim 1, characterized in that, The upper end face of the overflow cylinder (300) is provided with a water weir, which has a sawtooth structure.

5. The simple oil-water separation device according to claim 1, characterized in that, The solid-liquid separation component (200) includes multiple side plates (210) and a bottom plate (220). The surface of the side plates (210) intersects with the surface of the bottom plate (220). The multiple side plates (210) and the bottom plate (220) together form a support frame. The bottom plate (220) is provided with multiple through holes.

6. The simple oil-water separation device of claim 5, wherein In the projection of the cylinder (100) in the cross-sectional direction, the projected area of ​​the bottom plate (220) is smaller than the cross-sectional area of ​​the cylinder (100).

7. The simple oil-water separation device of claim 1, wherein The inner wall of the cylinder (100) is provided with a heating component (500), which is located in the second separation zone.

8. The simple oil-water separation device of claim 1, wherein The bottom of the cylinder (100) is provided with a sedimentation hopper (130).

9. The simple oil-water separation device of claim 1, wherein The cylinder (100) is equipped with a level gauge.

10. The simple oil-water separation device of claim 1, wherein The cylinder (100) is provided with an overflow port (140), which is located below the solid-liquid separation component (200) and above the overflow cylinder (300).

Images