Oil-water separating and filtering device for kitchen sewer

Abstract

The invention discloses an oil-water separating and filtering device for kitchen drainage, which comprises a barrel and a top cover arranged at the top of the barrel, a water inlet connector is formed in the center of the top of the top cover, a plurality of dispersion grids are formed in the top cover, the bottoms of the dispersion grids are connected with water blocking plates, and the dispersion grids are sleeved with filter residue funnels. A residue filtering funnel is arranged on the top cover, a residue leaking hole is formed in the bottom end of the residue filtering funnel, a supporting bottom plate is installed on the lower portion in the cylinder body, a residue discharging hole is formed in the center of the supporting bottom plate, a plurality of liquid leaking areas are arranged on the residue discharging hole, a residue discharging pipe is connected between the residue discharging hole and the residue leaking hole, a liquid outlet hole is formed in the residue discharging pipe, and an oil absorption filtering material is filled between the top cover and the supporting bottom plate in the cylinder body. A drainage connector is arranged in the center of the bottom of the barrel. According to the oil-water separation device, large solid impurities are separated after oily sewage in a kitchen is dispersed, so that the large solid impurities are independently discharged, the separated oil and water are subjected to oil absorption and filtration, the oil content in the discharged sewage is greatly reduced, and the risk of pipeline blockage is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen sewage treatment, and particularly relates to an oil-water separation and filtering device for kitchen sewage. Background Art

[0002] Kitchens produce a large amount of kitchen wastewater and kitchen sewage every day. Kitchen wastewater contains some solid impurities, while kitchen sewage contains not only fixed impurities but also a large amount of oil. Currently, most kitchen wastewater is discharged directly into the sewer pipe through pipes. Long-term discharge can easily cause sewer pipes to be clogged, resulting in kitchen wastewater backflow, causing a lot of inconvenience to users. Most of the kitchen wastewater filtration equipment available on the market only has a single waste residue filtration function, and some have oil-water separation functions, but these devices are relatively expensive, and the entire device has a complex structure and large size, which will take up a lot of storage space in the home kitchen. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and provide an oil-water separation and filtration device for kitchen drain, which can adsorb and filter the oil in the drain, avoiding pipe blockage caused by the solidification of oil discharged over a long period of time.

[0004] The technical solution adopted by the present invention is: an oil-water separation and filtering device for kitchen drain water, comprising a cylinder, the top of the cylinder is open, a top cover sealedly connected to the top of the cylinder is provided at the open top of the cylinder, a water inlet connector is formed at the center of the top of the top cover, a plurality of dispersion grids are formed around the bottom edge of the water inlet connector at the bottom of the inner bottom of the top cover, a water blocking plate coaxially arranged with the water inlet connector is connected to the bottom of the dispersion grid, a filter residue funnel coaxially arranged with the water inlet connector is further provided at the bottom of the top cover, the filter residue funnel is sleeved outside the dispersion grid, and a plurality of uniformly dense filter residue funnels are provided on the middle and lower side walls of the filter residue funnel. The filter hopper is provided with a support base plate installed horizontally in the lower part of the cylinder body, and a slag discharge hole matching the slag discharge mouth is provided in the center of the support base plate. Several leakage areas are evenly arranged on the support base plate, and each leakage area is evenly provided with several drainage micropores matching the size of the leakage micropores. A slag discharge pipe is connected between the slag discharge hole and the leakage hole, and several liquid outlet holes matching the size of the leakage micropores are evenly and densely provided on the slag discharge pipe. The space between the top cover in the cylinder body and the support base plate is filled with oil-absorbing filter material, and a drainage joint is provided at the center of the bottom of the cylinder body.

[0005] Preferably, a plurality of support platforms distributed in a ring shape are formed at the inner wall of the cylinder where the support base plate is installed, and the support base plate is placed on the surfaces of the plurality of support platforms at corresponding positions.

[0006] Preferably, the oil-absorbing filter material is nano-silicon dioxide particles with a porous structure, and a PE layer is sprayed on the surface of the nano-silicon dioxide particles and the surface of the pores.

[0007] The beneficial effects of the present invention are:

[0008] (1) The sewage entering from the water inlet connector can be effectively dispersed and broken up by the cooperation of the dispersion grid and the water blocking plate. The dispersed sewage can easily enter the cylinder cavity through the leakage micropores and the liquid outlet holes;

[0009] (2) By setting up a filter residue funnel and a slag discharge pipe, the larger fixed impurities after dispersion are discharged through the slag discharge pipe at the lower end of the filter residue funnel, and the sewage is dispersed and partially enters the cylinder cavity from the leakage micropores of the filter residue funnel, and partially enters the slag discharge pipe along with the fixed impurities. Part of the sewage entering the slag discharge pipe will enter the cylinder cavity from the liquid outlet, thereby discharging most of the sewage into the cylinder cavity, realizing the separation of slag and water;

[0010] (3) By filling the oil-absorbing filter material, the oil in the sewage entering the cylinder cavity is adsorbed, achieving oil-water separation, thereby effectively reducing the oil content in the sewage and reducing the chance of pipeline blockage;

[0011] (4) Setting up a supporting bottom plate reduces the downward discharge rate of oily wastewater, prolongs its contact time with the oil-absorbing filter material, and effectively improves the degreasing effect;

[0012] The present invention separates larger solid impurities after dispersing the oily kitchen sewage, thereby achieving separate discharge of the larger solid impurities, and then subjecting the separated oily water to oil absorption and filtration, thereby greatly reducing the oil content in the discharged sewage and effectively reducing the risk of pipeline blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 is a schematic diagram of the top cover of the present invention;

[0015] Figure 3 Schematic diagram of the funnel and slag discharge pipe of the present invention;

[0016] Figure 4 Schematic diagram of the supporting base plate of the present invention.

[0017] In the figure: 1. Cylinder; 2. Top cover; 3. Water inlet connector; 4. Dispersion grid; 5. Water blocking plate; 6. Filter residue funnel; 7. Liquid leakage micropores; 8. Leakage nozzle; 9. Support bottom plate; 10. Slag discharge hole; 11. Liquid leakage area; 12. Drainage micropores; 13. Slag discharge pipe; 14. Liquid outlet hole; 15. Oil absorption filter material; 16. Drainage joint; 17. Support platform. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the oil-water separation and filtering device for kitchen drain water provided in this embodiment includes a cylinder 1, the top of the cylinder 1 is open, and a top cover 2 corresponding to it is provided at the open position. The open end of the cylinder 1 and the top cover 2 are sealed by mutual cooperation of threads. A water inlet channel is opened in the middle of the top cover 2, and a water inlet connector 3 is formed at the center of the top of the top cover 2. The water inlet connector 3 corresponds to the water inlet channel, and the outer wall of the water inlet connector 3 is provided with a connecting thread that cooperates with a pipe joint. Several dispersion grilles 4 are formed around the edge of the water inlet channel at the bottom inner side of the top cover 2, and the bottoms of the several dispersion grilles 4 are fixedly connected to water blocking plates 5, that is, the bottom ends of the several dispersion grilles 4 are fixedly connected to the edge of the water blocking plate 5, that is, the water blocking plate 5 and the water inlet connector 3 are coaxially arranged;

[0021] The bottom of the top cover 2 is also detachably connected to a filter residue funnel 6, the opening of the filter residue funnel 6 is facing upward, and the upper part of the filter residue funnel 6 is cylindrical and the lower part is conical. The filter residue funnel 6 is set outside the dispersion grid 4, and the vertical center line of the filter residue funnel 6 coincides with the center line of the water blocking plate 5. The cylindrical lower part of the filter residue funnel 6 and the conical part of the filter residue funnel 6 are both provided with several leakage micropores 7 that penetrate the side wall on the side wall, and several leakage micropores 7 are densely and evenly distributed. A leakage nozzle 8 is formed at the bottom end of the filter residue funnel 6, and the leakage nozzle 8 is connected to one end of the slag discharge pipe 13, and the side wall of the slag discharge pipe 13 is provided with several leakage micropores 7 that penetrate the side wall. The liquid outlet hole 14 matches the size of the hole 7, and several liquid outlet holes 14 are densely and evenly distributed. The other end of the slag discharge pipe 13 is connected to the slag discharge hole 10 in the center of the support bottom plate 9. The support bottom plate 9 is located at the lower part of the cylinder 1. By forming several annular support platforms 17 on the inner wall of the lower part of the cylinder 1, the support bottom plate 9 is placed on the surface of several support platforms 17. Several leakage areas 11 are evenly set on the support bottom plate 9. Each leakage area 11 is respectively provided with several drainage micropores 12 that match the size of the leakage micropore 7. Several drainage micropores 12 are densely and evenly distributed. A drainage joint 16 is opened at the center of the bottom end of the cylinder 1;

[0022] The cavity of the cylinder 1 between the supporting base plate 9 and the top cover 2 is filled with an oil-absorbing filter material 15; the main part of the oil-absorbing filter material 15 is made of nano-silica particles with a porous structure, and a layer of PE is sprayed on the surface of the nano-silica particles and the pore surface. By spraying PE, the original hydrophilic groups of the nano-silica are shielded, and PE provides a long-chain alkane structure to reduce the surface energy, thereby achieving hydrophobicity and lipophilicity, thereby adsorbing oil pollution in the sewage and reducing the oil pollution content in the sewage.

[0023] The kitchen drain of the present invention is discharged through the sink pipe mouth, enters the upper part of the cylinder 1 through the water inlet connector 3, is blocked by the water blocking plate 5 at the upper part of the cylinder 1, and is evenly dispersed to the surroundings through the dispersion grid 4. The sewage dispersed to the outer wall of the filter residue funnel 6 partially passes through the leakage micropores 7 and enters the cavity of the cylinder 1 filled with oil-absorbing filter material 15. Larger solid impurities in the sewage enter the discharge pipe 13 with part of the sewage through the bottom end of the filter residue funnel 6, and some smaller impurities enter the discharge pipe 13, and some pass through the leakage micropores 7 with the sewage. The smaller impurities that pass through the leakage micropores 7 move downward with the sewage in the cavity filled with oil-absorbing filter material 15. In this process, the sewage passes through the gaps in the oil-absorbing filter material 15, and the oil-absorbing filter material 15 absorbs the oil in the sewage. The hole 7 matches the size of the drainage micropores 12, so smaller impurities are eventually discharged from the drainage micropores 12 along with the sewage; the sewage entering the slag discharge pipe 13, since the slag discharge pipe 13 also has a liquid outlet hole 14, part of the sewage will still pass through the liquid outlet hole 14 and enter the cavity filled with oil-absorbing filter material 15 for oil adsorption; due to the provision of the support bottom plate 9, the sewage in the cavity is discharged from the drainage micropores 12 on the support bottom plate 9. Since the drainage rate of the drainage micropores 12 is slow, the sewage gathers on the support bottom plate 9 and immerses the oil-absorbing filter material 15 in the lower part of the cavity, thereby improving the oil absorption effect; finally, the sewage in the slag discharge pipe 13 and the sewage in the cavity both enter the bottom of the cylinder 1 and are discharged into the pipeline through the drainage joint 16 at the bottom of the cylinder 1.

[0024] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered by the protection scope of the present invention.

Claims

1. An oil-water separation and filtering device for kitchen drain, comprising a cylinder (1), characterized in that: The top of the cylinder (1) is open, and a top cover (2) sealedly connected to the top of the cylinder (1) is provided at the open top of the cylinder (1). A water inlet connector (3) is formed at the center of the top of the top cover (2). Several dispersion grilles (4) are formed around the bottom edge of the water inlet connector (3). The bottom of the dispersion grilles (4) is connected to a water blocking plate (5) coaxially arranged with the water inlet connector (3). The bottom of the top cover (2) is also provided with a filter residue funnel (6) coaxially arranged with the water inlet connector (3). The filter residue funnel (6) is sleeved outside the dispersion grille (4). Several uniformly densely distributed liquid leakage micropores (7) are opened on the middle and lower side walls of the filter residue funnel (6), and a residue leakage nozzle (8) is formed at the bottom of the filter residue funnel (6). A supporting base plate (9) is horizontally installed at the lower part of the cylinder (1), and a slag discharge hole (10) matching the slag leakage hole (8) is opened at the center of the supporting base plate (9). A plurality of liquid leakage areas (11) are evenly arranged on the supporting base plate (9), and each liquid leakage area (11) is evenly opened with a plurality of drainage micropores (12) matching the size of the liquid leakage micropore (7). A slag discharge pipe (13) is connected between the slag discharge hole (10) and the slag leakage nozzle (8), and a plurality of liquid outlet holes (14) matching the size of the liquid leakage micropore (7) are evenly and densely opened on the slag discharge pipe (13). The space between the top cover (2) in the cylinder (1) and the supporting base plate (9) is filled with oil absorption filter material (15), and a drainage joint (16) is provided at the center of the bottom of the cylinder (1).

2. The oil-water separation and filtering device for kitchen drain according to claim 1, characterized in that: A plurality of support platforms (17) distributed in a ring shape are formed at the inner wall of the cylinder (1) where the support base plate (9) is installed, and the support base plate (9) is placed on the surfaces of the plurality of support platforms (17) at corresponding positions.

3. The oil-water separation and filtering device for kitchen drain according to claim 2, characterized in that: The oil absorption filter material (15) is nano silicon dioxide particles with a porous structure, and a PE layer is sprayed on the surface of the nano silicon dioxide particles and the surface of the pores.

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