Oil-water separating and filtering device for kitchen waste

Abstract

The utility model relates to the technical field of kitchen waste treatment equipment, in particular to a kitchen waste oil-water separating and filtering device which comprises a treatment tank body, the inner wall of the treatment tank body is fixedly connected with a filtering and separating cylinder through a fixing support, and the bottom of the filtering and separating cylinder is fixedly connected with a nanofiltration membrane filtering plate. The top of the treatment tank body is fixedly connected with a high-pressure separation assembly; and the high-pressure separation assembly comprises an electric push rod fixedly connected to the top of the treatment tank body, and the inner wall of the filtering separation cylinder is in sealed sliding connection with an extrusion plate. According to the oil-water separation and filtration device, oil-water mixed liquid can be subjected to high-pressure extrusion so as to complete extraction and storage of grease and discharge of water, rapid separation and filtration of oil and water are realized, the separation and filtration rate of oil and water is effectively increased, and the nanofiltration membrane filter plate can be conveniently and automatically cleaned so as to maintain the separation and filtration effect of the nanofiltration membrane filter plate on oil and water; the oil-water separation and filtration efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of restaurant and kitchen waste processing equipment, in particular to a restaurant and kitchen waste oil-water separation and filtering device. Background Art

[0002] Kitchen waste refers to kitchen waste generated in daily life, including food scraps, expired food, fruit and vegetable peels and cores, etc. These wastes contain a variety of organic substances. The oil-water mixture after classification and treatment of kitchen waste usually contains components such as grease, water and salt. After the grease and water are separated, it can be used for other purposes and generate income, thereby realizing the reuse of kitchen waste.

[0003] The existing technology often has the following problems when used:

[0004] The oil-water separation and filtration of kitchen waste usually adopts the natural separation method of gravity. However, the use of gravity separation will make the separation rate of oil and water slower, and during the oil-water separation and filtration process, a layer of oil and water will adhere to the inner wall of the container and the surface of the filter structure. These oil layers will hinder the separation and filtration of oil and water, affecting the overall efficiency of oil-water separation and filtration. Utility Model Content

[0005] In response to the above-mentioned shortcomings of the existing technology, the utility model provides a food waste oil-water separation and filtration device, which can effectively solve the problems in the existing technology of slow oil-water separation by gravity and the problem that the grease layer is easily attached to the surface of the filter structure, thereby affecting the oil-water separation and filtration efficiency.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a food waste oil-water separation and filtering device, comprising a processing tank body, wherein the inner wall of the processing tank body is fixedly connected to a filter separation cylinder via a fixed bracket, the bottom of the filter separation cylinder is fixedly connected to a nanofiltration membrane filter plate, and the top of the processing tank body is fixedly connected to a high-pressure separation component;

[0008] The high-pressure separation assembly includes an electric push rod fixedly connected to the top of the processing tank body, an extrusion plate is sealingly and slidably connected to the inner wall of the filter separation cylinder, an adapter frame is fixedly connected to the top of the extrusion plate, and the top of the adapter frame is fixedly connected to the output end of the electric push rod, an oil suction hose is fixedly connected to the filter separation cylinder, and an oleophilic membrane is provided at the inlet end of the oil suction hose;

[0009] A filtering and cleaning component is rotatably connected through the middle of the extrusion plate.

[0010] Furthermore, a centrifugal oil pump is fixedly connected to the top of the processing tank body, and the outlet end of the oil suction hose passes through the top of the processing tank body and is connected to the centrifugal oil pump.

[0011] Furthermore, the filter cleaning assembly includes an inner limit sleeve that is rotatably connected to the middle part of the extrusion plate through a sealed bearing, the inner limit sleeve is sealed and slidably connected to a limit sleeve rod, a compression spring is fixedly connected between the upper end of the limit sleeve rod and the inner bottom surface of the inner limit sleeve, and the lower end of the limit sleeve rod is fixedly connected to a cleaning scraper.

[0012] Furthermore, a rotary motor is fixedly connected to the upper end of the adapter frame, and an output end of the rotary motor is fixedly connected to the upper end of the inner limiting sleeve.

[0013] Furthermore, a retention groove is provided at the bottom of the extrusion plate, the cleaning strip matches the retention groove, and the outer surface of the cleaning strip is coated with an oleophilic layer.

[0014] Furthermore, a liquid inlet hose is fixedly connected to the top of the processing tank body, the outlet end of the liquid inlet hose passes through the extrusion plate and is connected to the filter separation cylinder, the bottom of the processing tank body is connected to a drain pipe, and solenoid valves are provided in the liquid inlet hose and the drain pipe.

[0015] Compared with the known prior art, the technical solution provided by this utility model has the following advantages:

[0016] Beneficial effects:

[0017] The utility model is provided with a high-pressure separation component, which controls the electric push rod to drive the extrusion plate to move downward in the filter separation cylinder in a sealed manner to perform high-pressure extrusion on the oil-water mixture, so that the oil-water mixture is strongly compressed. The oil will accelerate to float above the mixture due to its own low density characteristics, and the oil is extracted and stored by a centrifugal oil pump, while the water is discharged through the nanofiltration membrane filter plate, thereby effectively accelerating the oil-water separation and filtration rate.

[0018] The utility model provides a filter cleaning component, and when it is necessary to clean the grease layer attached to the surface of the nanofiltration membrane filter plate, the grease layer can be scraped off by driving the cleaning scraper to rotate relative to the upper surface of the nanofiltration membrane filter plate, thereby facilitating automatic cleaning of the nanofiltration membrane filter plate, maintaining the oil-water separation and filtration effect of the nanofiltration membrane filter plate, and ensuring the efficiency of the oil-water separation and filtration; and when the extrusion plate moves down to fit with the nanofiltration membrane filter plate, the cleaning scraper can also be automatically retracted, thereby ensuring the high-pressure extrusion separation effect of the extrusion plate on the oil and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the processing tank structure in the utility model;

[0022] Figure 3 This is a cross-sectional view of the structure of the filter separation cylinder in the utility model;

[0023] Figure 4 This is a cross-sectional view of the structure of the inner limiting sleeve in the utility model;

[0024] Figure 5 A schematic diagram of the structure of the extruded plate portion of the present invention;

[0025] Figure numerals: 1. treatment tank; 2. filter separation cylinder; 3. nanofiltration membrane filter plate; 4. extrusion plate; 5. adapter frame; 6. oil suction hose; 7. oleophilic membrane; 8. centrifugal oil pump; 9. inner limit sleeve; 10. limit sleeve rod; 11. compression spring; 12. cleaning scraper; 13. rotary motor; 14. retention groove; 15. liquid inlet hose; 16. drain pipe; 17. electric push rod. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example: Refer to Figures 1 to 5, a food waste oil-water separation and filtration device comprises a treatment tank body 1, the inner wall of the treatment tank body 1 is fixedly connected to a filter separation cylinder 2 through a fixed bracket, the bottom of the filter separation cylinder 2 is fixedly connected to a nanofiltration membrane filter plate 3, and the top of the treatment tank body 1 is fixedly connected to a high-pressure separation component; the high-pressure separation component comprises an electric push rod 17 fixedly connected to the top of the treatment tank body 1, the inner wall of the filter separation cylinder 2 is sealingly and slidably connected to an extrusion plate 4, the top of the treatment tank body 1 is fixedly connected to a liquid inlet hose 15, the outlet end of the liquid inlet hose 15 passes through the extrusion plate 4 and is connected to the filter separation cylinder 2, the bottom of the treatment tank body 1 is connected to a drain pipe 16, and electromagnetic valves are provided in the liquid inlet hose 15 and the drain pipe 16, and the electromagnetic valves in the liquid inlet hose 15 and the drain pipe 16 are In the normally closed state, it is opened only when there is a need to pass or discharge liquid. The top of the extrusion plate 4 is fixedly connected to the adapter frame 5, and the top of the adapter frame 5 is fixedly connected to the output end of the electric push rod 17. The filter separation cylinder 2 is fixedly connected to the oil suction hose 6, and the inlet end of the oil suction hose 6 is provided with an oleophilic membrane 7. It should be noted that the nanofiltration membrane filter plate 3 only allows water molecules with a smaller diameter to pass through but does not allow oil molecules to pass through. The oleophilic membrane 7 has the characteristic of being able to interact with oil molecules. The oleophilic membrane 7 at the inlet end of the oil suction hose 6 only allows oil molecules to pass through but does not allow water molecules to pass through. The top of the treatment tank body 1 is fixedly connected to the centrifugal oil pump 8, and the outlet end of the oil suction hose 6 passes through the top of the treatment tank body 1 and is connected to the centrifugal oil pump 8;

[0029] By controlling the electric push rod 17 to drive the extrusion plate 4 to move, the extrusion plate 4 is sealed and moved downward in the filter separation cylinder 2, so that the oil-water mixture can be squeezed at high pressure by the extrusion plate 4, so that the oil-water mixture is strongly compressed. Since the oil has the characteristic of low density, the oil will accelerate to float above the mixture during the compression process. At this time, the centrifugal oil pump 8 extracts and stores the oil through the oil suction hose 6, and the water is discharged through the nanofiltration membrane filter plate 3 at the bottom of the filter separation cylinder 2, thereby effectively accelerating the separation and filtration rate of oil and water.

[0030] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , a filter cleaning assembly is rotatably connected to the middle of the extrusion plate 4, and the filter cleaning assembly includes an inner limit sleeve 9 that is rotatably connected to the middle of the extrusion plate 4 through a sealed bearing. The upper end of the adapter frame 5 is fixedly connected to a rotary motor 13, and the output end of the rotary motor 13 is fixedly connected to the upper end of the inner limit sleeve 9. The inner limit sleeve 9 is internally sealed and slidably connected to a limit sleeve rod 10. A compression spring 11 is fixedly connected between the upper end of the limit sleeve rod 10 and the inner bottom surface of the inner limit sleeve 9. A cleaning scraper 12 is fixedly connected to the lower end of the limit sleeve rod 10. A retention groove 14 is provided at the bottom of the extrusion plate 4. The cleaning scraper 12 matches the retention groove 14, and the outer surface of the cleaning scraper 12 is coated with an oleophilic layer;

[0031] The inner limiting sleeve 9, the limiting sleeve rod 10 and the cleaning scraper 12 are driven to rotate by the rotating motor 13, and the grease layer is scraped off by the cleaning scraper 12 in contact with and rotating relative to the upper surface of the nanofiltration membrane filter plate 3, thereby facilitating automatic cleaning of the nanofiltration membrane filter plate 3, maintaining the oil-water separation and filtration effect of the nanofiltration membrane filter plate 3, and ensuring the efficiency of the oil-water separation and filtration;

[0032] When the cleaning scraper 12 is not in use and the extrusion plate 4 is moved down to a state of being in contact with the nanofiltration membrane filter plate 3, the limiting sleeve 10 can be retracted relative to the inner limiting sleeve 9, and at the same time, the cleaning scraper 12 can be stored in the retention groove 14 at the bottom of the extrusion plate 4, thereby ensuring the high-pressure extrusion separation effect of the extrusion plate 4 on oil and water.

[0033] The working principle of this utility model is as follows:

[0034] 1. When in use, first, the oil-water mixture of food waste is passed into the filter separation cylinder 2 through the liquid inlet hose 15. The extrusion plate 4 is driven to move by controlling the electric push rod 17, so that the extrusion plate 4 moves down in a sealed manner in the filter separation cylinder 2, so that the oil-water mixture is squeezed by the extrusion plate 4 under high pressure, so that the oil-water mixture is strongly compressed. Due to the low density of grease, the grease will accelerate to float above the mixture during the compression process. At this time, the centrifugal oil pump 8 extracts and stores the grease through the oil suction hose 6, and the water is discharged through the nanofiltration membrane filter plate 3 at the bottom of the filter separation cylinder 2, thereby effectively accelerating the separation and filtration rate of oil and water;

[0035] 2. If it is necessary to clean the grease layer attached to the surface of the nanofiltration membrane filter plate 3, the rotary motor 13 can be controlled to start, and the inner limiting sleeve 9, the limiting sleeve rod 10 and the cleaning scraper 12 can be driven to rotate by the rotary motor 13. The cleaning scraper 12 is rotated relative to the upper surface of the nanofiltration membrane filter plate 3 to scrape off the grease layer, thereby facilitating automatic cleaning of the nanofiltration membrane filter plate 3, maintaining the oil-water separation and filtration effect of the nanofiltration membrane filter plate 3, and ensuring the efficiency of the oil-water separation and filtration;

[0036] 3. When the cleaning scraper 12 is not in use and the extrusion plate 4 moves down to a state in which it is in contact with the nanofiltration membrane filter plate 3, the limiting sleeve 10 can be retracted relative to the inner limiting sleeve 9, and the cleaning scraper 12 can be stored in the retention groove 14 at the bottom of the extrusion plate 4, thereby ensuring the high-pressure extrusion separation effect of the extrusion plate 4 on oil and water.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A kitchen waste oil-water separation and filtering device, characterized in that: include: A processing tank body (1), wherein the inner wall of the processing tank body (1) is fixedly connected to a filter separation cylinder (2) via a fixed bracket, the bottom of the filter separation cylinder (2) is fixedly connected to a nanofiltration membrane filter plate (3), and the top of the processing tank body (1) is fixedly connected to a high-pressure separation component; The high-pressure separation assembly comprises an electric push rod (17) fixedly connected to the top of the processing tank (1); the inner wall of the filter separation cylinder (2) is sealed and slidably connected to an extrusion plate (4); the top of the extrusion plate (4) is fixedly connected to an adapter frame (5); the top of the adapter frame (5) is fixedly connected to the output end of the electric push rod (17); the filter separation cylinder (2) is fixedly connected to an oil suction hose (6); the inlet end of the oil suction hose (6) is provided with an oleophilic membrane (7); A filtering and cleaning component is rotatably connected through the middle of the extrusion plate (4).

2. The kitchen waste oil-water separation and filtering device according to claim 1, characterized in that: A centrifugal oil pump (8) is fixedly connected to the top of the processing tank body (1), and the outlet end of the oil suction hose (6) passes through the top of the processing tank body (1) and is in communication with the centrifugal oil pump (8).

3. The kitchen waste oil-water separation and filtering device according to claim 1, characterized in that: The filter cleaning assembly comprises an inner limiting sleeve (9) which is rotatably connected to the middle of the extrusion plate (4) through a sealed bearing, the inner limiting sleeve (9) is sealed and slidably connected to a limiting sleeve rod (10), a compression spring (11) is fixedly connected between the upper end of the limiting sleeve rod (10) and the inner bottom surface of the inner limiting sleeve (9), and a cleaning scraper (12) is fixedly connected to the lower end of the limiting sleeve rod (10).

4. The kitchen waste oil-water separation and filtering device according to claim 3, characterized in that: The upper end of the adapter frame (5) is fixedly connected to a rotary motor (13), and the output end of the rotary motor (13) is fixedly connected to the upper end of the inner limiting sleeve (9).

5. The kitchen waste oil-water separation and filtering device according to claim 3, characterized in that: A retention groove (14) is provided at the bottom of the extrusion plate (4), the cleaning strip (12) matches the retention groove (14), and the outer surface of the cleaning strip (12) is coated with an oleophilic layer.

6. The kitchen waste oil-water separation and filtering device according to claim 1, characterized in that: The top of the processing tank body (1) is fixedly connected to a liquid inlet hose (15), the outlet end of the liquid inlet hose (15) passes through the extrusion plate (4) and is connected to the filter separation cylinder (2), and the bottom of the processing tank body (1) is connected to a drain pipe (16), and electromagnetic valves are provided in the liquid inlet hose (15) and the drain pipe (16).

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