Multi-stage separation and recovery device for kitchen waste grease

Abstract

The utility model relates to the technical field of grease separation, in particular to a kitchen waste grease multistage separation and recovery device which comprises a shell, a filtering assembly and a separation assembly. The filtering assembly is arranged on the inner wall of the shell and used for carrying out solid-liquid separation on the kitchen waste, so that solid waste is filtered layer by layer, and only oil and water can pass through the filtering assembly; and the separation assembly is arranged in the shell, is positioned below the filtering assembly, and is used for separating, extracting and recycling the layered grease and water after the standing is completed. Compared with the prior art, the problem of low grease recovery rate caused by incomplete solid-liquid separation of kitchen waste in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grease separation technical field especially relates to a kitchen waste grease multistage separation recovery device. BACKGROUND

[0002] Kitchen waste treatment is an important part of urban waste management, and the recycling of waste liquid grease is one of the key links in resource treatment. In the process of kitchen waste treatment, three-phase oil extraction technology (i.e. solid, liquid and oil three-phase separation) is usually used to preliminarily recover the grease in the waste liquid. However, after three-phase oil extraction treatment, a certain amount of grease (usually 0.5%-1%) will still remain in the waste liquid. If these residual greases are directly discharged, not only will it cause resource waste, but also will it pollute the end sewage treatment system and the environment. Therefore, how to efficiently recover and utilize the residual grease in the waste liquid has become an important research direction in the field of kitchen waste treatment.

[0003] In the prior art, the patent literature with publication number CN212264143U proposes to use hierarchical phase separation fermentation in a kitchen waste recycling and treatment all-in-one machine, which can maximize the treatment of kitchen waste and obtain three products of waste oil, liquid fertilizer and solid fertilizer, and can also be continuously operated, suitable for individual kitchen waste treatment in schools, restaurants and construction sites, but in actual application, the above technical solution only relies on spiral extrusion solid-liquid separation, and small solids are easy to remain, affecting the subsequent oil-water separation efficiency. UTILITY MODEL CONTENT

[0004] Therefore, the purpose of the utility model is to provide a kitchen waste grease multistage separation recovery device to solve the problem of low grease recovery rate caused by incomplete solid-liquid separation of kitchen waste in the prior art.

[0005] Based on the above purpose, the utility model provides a kitchen waste grease multistage separation recovery device, which comprises a shell, a filter assembly and a separation assembly.

[0006] The filter assembly is arranged on the inner wall of the shell and is used for solid-liquid separation of kitchen waste, so that the solid waste is filtered layer by layer, and only oil and water can pass through the filter assembly.

[0007] The separation assembly is arranged below the filter assembly in the interior of the shell and is used for separating and extracting the layered grease and water after static completion and recycling.

[0008] Preferably, the filter assembly comprises a first filter plate, the first filter plate is slidingly mounted on the inner wall of the shell, the inner wall of the shell is provided with a receiving groove at the corresponding position of the first filter plate, one side of the first filter plate is fixedly connected with a closing plate, one side of the shell close to the closing plate is provided with a through groove, the size of the closing plate and the through groove is consistent, one side of the closing plate is fixedly connected with a handle, the inside of the shell below the handle is slidingly mounted with a second filter plate and a third filter plate respectively, the third filter plate is arranged below the second filter plate, and one side of the second filter plate and the third filter plate is fixedly mounted with the closing plate.

[0009] Preferably, the separation assembly comprises an oil outlet pipe, the oil outlet pipe is fixedly mounted on the side of the shell away from the closing plate, the oil outlet pipe penetrates the outer wall of the shell and is communicated with the shell, the oil outlet pipe is below the third filter plate, one side of the oil outlet pipe is fixedly communicated with an extension pipe below, the extension pipe is fixedly communicated with a floating plate below, the floating plate is uniformly communicated with a plurality of oil suction pipes outside, and the oil suction pipes are communicated with the extension pipe and the oil outlet pipe above through the floating plate.

[0010] Preferably, the first filter plate, the second filter plate and the third filter plate are filter plates with mesh numbers decreasing in turn, that is, the mesh number of the first filter plate is greater than that of the second filter plate, the mesh number of the second filter plate is greater than that of the third filter plate, and the third filter plate can intercept small solid substances.

[0011] Preferably, a fixing ring is fixedly mounted on the outer side of the shell, a plurality of supports are fixedly mounted below the fixing ring, and a water outlet pipe is fixedly communicated with the bottom of the shell.

[0012] Preferably, a plurality of the oil suction pipes are arranged on the side of the floating plate in a radial manner, and the oil suction pipes are communicated with the extension pipe and the oil outlet pipe above through the floating plate.

[0013] Preferably, one side of the oil outlet pipe is communicated with a water pump and a collecting groove, so as to provide power support for the oil suction pipe.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The kitchen waste oil multi-stage separation and recovery device is characterized in that three-stage progressive filtering and a floating oil pumping system are cooperatively designed, multi-stage filtering is used for gradually reducing pressure to avoid blockage, a self-cleaning coating filter plate is used for cooperation, treatment efficiency is significantly improved, radial oil suction pipes are combined with self-adaptive floating plates, the oil-water interface is accurately tracked, the problems of mixed water or residues of traditional fixed oil suction ports are solved, and the overall separation efficiency is greatly improved compared with the traditional scheme.

[0016] 2. The multi-stage separation and recovery device for kitchen waste oil, which adopts a pure mechanical structure and does not need complex electrical control or continuous energy consumption, has greatly reduced operation energy consumption, realizes rapid cleaning through the pull-out type filter plate design, shortens the maintenance time through the modular floating oil pumping assembly, guarantees the continuous operation stability, and is especially suitable for high-solid and high-oil kitchen waste, and has the advantages of high efficiency, low maintenance and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 It is a first perspective view of the overall structure of the present application.

[0019] Figure 2 It is a second perspective view of the overall structure of the present application.

[0020] Figure 3 It is a partial structure section view of the present application.

[0021] Figure 4 It is the present application Figure 3 It is an enlarged view of the structure at A in the present application.

[0022] In the figure, the marks are:

[0023] 1, shell; 2, fixed ring; 3, support; 4, closure plate; 5, handle; 6, oil outlet pipe; 7, water outlet pipe; 8, first filter plate; 9, second filter plate; 10, third filter plate; 11, telescopic pipe; 12, floating plate; 13, oil pumping pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with specific embodiments.

[0025] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "containing" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] As shown in Figures 1 to 4 A multi-stage separation and recovery device for kitchen waste oil, comprising a housing 1, a filter assembly and a separation assembly, a fixed ring 2 is fixedly installed on the outside of the housing 1, a plurality of supports 3 are fixedly installed below the fixed ring 2, and a water outlet pipe 7 is fixedly communicated at the bottom of the housing 1;

[0027] Further, as shown in Figure 2 , Figure 3As shown, the filter assembly is arranged on the inner wall of the shell 1, which is used for solid-liquid separation of kitchen waste, so that solid waste is filtered layer by layer, and only oil and water can pass through the filter assembly, which comprises a first filter plate 8, the first filter plate 8 is slidingly installed on the inner wall of the shell 1, the inner wall of the shell 1 is provided with a receiving groove at the corresponding position of the first filter plate 8, one side of the first filter plate 8 is fixedly connected with a closing plate 4, one side of the shell 1 close to the closing plate 4 is provided with a through groove, the closing plate 4 is consistent with the size of the through groove, one side of the closing plate 4 is fixedly connected with a handle 5, the inside of the shell 1 below the handle 5 is slidingly installed with a second filter plate 9 and a third filter plate 10 respectively, the third filter plate 10 is arranged below the second filter plate 9, one side of the second filter plate 9 and the third filter plate 10 is fixedly installed with a closing plate 4, one end of the closing plate 4 is fixedly installed with a handle 5, the first filter plate 8, the second filter plate 9 and the third filter plate 10 are filter plates with decreasing mesh size, that is, the mesh size of the first filter plate 8 is greater than that of the second filter plate 9, the mesh size of the second filter plate 9 is greater than that of the third filter plate 10, the third filter plate 10 can intercept small solid substances, the three filter plates are made of 316L stainless steel with self-cleaning coating, the multiple filter plates are filtered by multiple stages, the first filter plate 8 performs coarse filtration, the second filter plate 9 performs medium filtration, and the third filter plate 10 performs fine filtration, the pressure is gradually reduced, the third filter plate 10 is prevented from being blocked too early, and finally only oil and water are allowed to pass through, each filter plate is sealed with the shell 1 through groove by closing plate 4, the opening is automatically closed when pulling, when the filter plate is pulled out, the residual solid is taken out together, which is convenient for cleaning, when the device is used, first, the kitchen waste is put in, then the first filter plate 8 intercepts large particles, the liquid is filtered by the second filter plate 9 twice, and the third filter plate 10 ensures that the water contains only oil and water mixture, the handle 5 drives the closing plate 4 to clean layer by layer;

[0028] Further, as shown in Figures 2 to 4 The separation assembly is arranged below the filter assembly in the inside of the shell 1, which is used for separating and extracting and recycling the layered oil and water after being static, comprising an oil outlet pipe 6, the oil outlet pipe 6 is fixedly installed on one side of the shell 1 away from the closing plate 4, the oil outlet pipe 6 penetrates the outer wall of the shell 1 and is communicated with the shell 1, the oil outlet pipe 6 is below the third filter plate 10, one side of the oil outlet pipe 6 is fixedly connected with a telescopic pipe 11 below, the telescopic pipe 11 is fixedly connected with a floating plate 12 below, the floating plate 12 is evenly connected with a plurality of oil suction pipes 13 outside, the floating plate 12 is made of polystyrene, a plurality of oil suction pipes 13 are arranged on the side of the floating plate 12 in a radial manner, the oil suction pipe 13 is communicated with the telescopic pipe 11 and the oil outlet pipe 6 above through the floating plate 12, one side of the oil outlet pipe 6 is communicated with an external water pump and a collection tank to provide power support for the oil suction pipe 13, the floating plate 12 is made of polystyrene: through the density difference (ρ≈0.05g / cm 3) automatically floats at the interface of oil layer (p≈0.9g / cm 3 ) and water layer (p=1g / cm 3 ), ensures that the oil extraction pipe 13 is always located at the bottom of the oil layer, the telescopic pipe 11 is self-adaptive to the change of liquid level, linkage between the oil extraction system and the floating plate 12 is maintained, the radial oil extraction pipe 13 can cover a larger oil layer area, and the "oil layer collapse" caused by local oil extraction is avoided, when the device is used, firstly, a layering stage is entered: the mixed liquid after solid-liquid separation is at rest, the oil layer (upper) and the water layer (lower) are naturally layered, then a positioning stage is entered: the floating plate 12 floats at the interface of the oil and water due to the density difference, the telescopic pipe 11 is adjusted with the liquid level, then an oil extraction stage is entered: a negative pressure is generated by starting the external water pump, reaches the telescopic pipe 11 through the oil outlet pipe 6, and drives the oil extraction pipe 13 to extract oil, and the radial oil extraction pipe 13 uniformly extracts the oil layer.

[0029] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary, and is not intended to imply that the scope (including claims) of the utility model is limited to these examples; under the idea of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, in order to be brief, they are not provided in details.

[0030] The utility model aims at covering all such replacements, modifications and variations falling into the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-stage separation and recycling device for kitchen waste grease, characterized in that, include: The outer casing (1), the filter assembly, and the separation assembly; A filter assembly is disposed on the inner wall of the outer shell (1) for solid-liquid separation of kitchen waste, so that solid waste is filtered layer by layer, and only oil and water can pass through the filter assembly. The filter assembly includes a first filter plate (8), which is slidably installed on the inner wall of the outer shell (1). The inner wall of the outer shell (1) is provided with a receiving groove at the corresponding position of the first filter plate (8). A sealing plate (4) is fixedly connected to one side of the first filter plate (8). A through groove is provided on the side of the outer shell (1) near the sealing plate (4). The sealing plate (4) is the same size as the through groove. A handle (5) is fixedly connected to one side of the sealing plate (4). A second filter plate (9) and a third filter plate (10) are slidably installed inside the outer shell (1) below the handle (5). The third filter plate (10) is disposed below the second filter plate (9). The second filter plate (9) and the third filter plate (10) are respectively slidably installed on one side of the second filter plate (9). The sealing plate (4) is fixedly installed on both sides, and the handle (5) is fixedly installed on one end of the sealing plate (4); the separation component is set inside the outer shell (1) below the filter component, and is used to separate, extract and recycle the stratified grease and water after it has settled. It includes an oil outlet pipe (6), which is fixedly installed on the side of the outer shell (1) away from the sealing plate (4). The oil outlet pipe (6) penetrates the outer wall of the outer shell (1) and is connected to the outer shell (1). The oil outlet pipe (6) is located below the third filter plate (10). A telescopic pipe (11) is fixedly connected to one side of the oil outlet pipe (6). A float plate (12) is fixedly connected to the lower part of the telescopic pipe (11). Multiple oil extraction pipes (13) are evenly connected to the outside of the float plate (12). The oil extraction pipes (13) are connected to the telescopic pipe (11) above and the oil outlet pipe (6) through the float plate (12).

2. The multi-stage separation and recycling device for kitchen waste grease according to claim 1, characterized in that, The first filter plate (8), the second filter plate (9) and the third filter plate (10) are filter plates with decreasing mesh sizes in sequence. That is, the mesh size of the first filter plate (8) is greater than that of the second filter plate (9), the mesh size of the second filter plate (9) is greater than that of the third filter plate (10), and the third filter plate (10) can trap fine solid substances.

3. The multi-stage separation and recycling device for kitchen waste grease according to claim 1, characterized in that, A fixing ring (2) is fixedly installed on the outside of the outer shell (1), and multiple brackets (3) are fixedly installed below the fixing ring (2). A water outlet pipe (7) is fixedly connected to the bottom of the outer shell (1).

4. The multi-stage separation and recycling device for kitchen waste grease according to claim 3, characterized in that, Multiple oil extraction pipes (13) are arranged radially on the side of the float (12).

5. A multi-stage separation and recycling device for kitchen waste grease according to claim 3, characterized in that, One side of the oil outlet pipe (6) is connected to an external water pump and a collection tank, providing power support for the oil extraction pipe (13).

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