Kitchen wastewater oil-water separation filtering device

Abstract

The utility model discloses a kitchen oil -water separation filter device for sewage, including the cylinder and the top cover of cylinder top setting, the top cover top center is formed with the water inlet connector, and the top cover is formed with a plurality of dispersion grating inside, and the dispersion grating bottom is connected with the water stop board, the dispersion grating is equipped with the filter residue hopper, and the bottom end of filter residue hopper is formed with the residue leakage hole, the lower portion is installed in the cylinder and is opened with the residue discharge hole in the support base plate center, is equipped with a plurality of liquid leakage areas on the residue discharge hole, and the residue discharge pipe is connected between the residue discharge hole and the residue leakage hole, the residue discharge pipe is opened with the liquid outlet hole, the top cover is filled with the oil absorption filter material between the cylinder and the support base plate in the cylinder, and the cylinder bottom center is equipped with the drain connector. The utility model discloses through the kitchen oil -containing sewage dispersion, the separation of larger solid impurities is carried out to realize the separate discharge of larger solid impurities, and then the separated oil -water is filtered to oil, and the oil content in the discharge sewage is greatly reduced, and the risk of pipeline blockage is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen wastewater treatment technology, specifically relating to an oil-water separation and filtration device for kitchen drains. Background Technology

[0002] Kitchens generate a large amount of food wastewater and kitchen sewage daily. Food wastewater contains some solid impurities, while kitchen sewage contains not only solid impurities but also a large amount of grease. Currently, most food waste is discharged directly into the sewer system through pipes. Long-term discharge can easily cause sewer blockages, leading to backflow of kitchen sewage and causing considerable inconvenience to users. Most existing food waste filtration devices on the market only have a single waste residue filtration function. Some have oil-water separation functions, but these devices are relatively expensive, and the entire device has a complex structure and large size, taking up a lot of storage space in the kitchen. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing an oil-water separation and filtration device for kitchen drains. This device can adsorb and filter oil in the drain, thus avoiding pipe blockage caused by the solidification of oil due to long-term discharge.

[0004] The technical solution adopted by this utility model is as follows: an oil-water separation and filtration device for kitchen drains, comprising a cylindrical body with an open top. A top cover, sealed to the open top, is provided. A water inlet connector is formed at the center of the top cover. Several dispersive grids are formed around the bottom edge of the water inlet connector inside the top cover. A water-blocking plate, coaxially arranged with the water inlet connector, is connected to the bottom of the dispersive grids. A filter funnel, coaxially arranged with the water inlet connector, is also provided at the bottom of the top cover. The filter funnel is fitted outside the dispersive grids. Several evenly spaced and densely packed filter holes are formed on the middle and lower side walls of the filter funnel. The filter funnel has a distributed network of micropores for leakage, and a slag-leaking nozzle is formed at the bottom of the slag funnel. A supporting base plate is horizontally installed in the lower part of the cylinder. A slag discharge hole matching the slag discharge nozzle is opened in the center of the supporting base plate. Several leakage areas are also evenly distributed on the supporting base plate. Each leakage area has several drainage micropores that match the size of the micropores for leakage. A slag discharge pipe is connected between the slag discharge hole and the leakage hole. Several liquid outlet holes matching the size of the micropores for leakage are evenly and densely distributed on the slag discharge pipe. The space between the top cover of the cylinder and the supporting base plate is filled with oil-absorbing filter media. A drainage connector is provided at the center of the bottom of the cylinder.

[0005] Preferably, the inner wall of the cylinder has several support platforms arranged in a ring at the location where the support base plate is installed, and the support base plate is placed on the surface of the several support platforms at corresponding positions.

[0006] Preferably, the oil-absorbing filter material is porous nano-silica particles with a PE layer on the surface.

[0007] The beneficial effects of this utility model are as follows:

[0008] (1) By combining the dispersion grid and the water blocking plate, the sewage entering from the inlet connector can be effectively dispersed and broken up. The dispersed sewage can easily enter the cylinder cavity through the leakage micro-hole and the liquid outlet.

[0009] (2) By setting up a filter cake funnel and a slag discharge pipe, larger fixed impurities after dispersion are discharged through the slag discharge pipe at the bottom of the filter cake funnel. After the sewage is dispersed, part of it enters the cylinder cavity through the leakage micropores of the filter cake funnel, and part of it enters the slag discharge pipe with the fixed impurities. Some of the sewage entering the slag discharge pipe will enter the cylinder cavity through the liquid outlet, thereby discharging most of the sewage into the cylinder cavity and achieving slag and water separation.

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

[0011] (4) The support base plate reduces the rate at which oily wastewater is discharged downwards, extending the contact time between the wastewater and the oil-absorbing filter material, thus effectively improving the oil removal effect;

[0012] This invention separates larger solid impurities from oily kitchen wastewater, allowing for their separate discharge. The separated oil and water are then filtered to remove excess oil, significantly reducing the oil content in the wastewater and effectively mitigating the risk of pipe blockage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the top cover of this utility model;

[0015] Figure 3 This is a schematic diagram of the funnel and slag discharge pipe of this utility model;

[0016] Figure 4 This is a schematic diagram of the supporting base plate of this utility model.

[0017] In the diagram: 1. Cylinder body; 2. Top cover; 3. Water inlet connector; 4. Dispersion grid; 5. Water baffle plate; 6. Filter residue funnel; 7. Liquid leakage micropores; 8. Sludge leakage nozzle; 9. Support base plate; 10. Sludge discharge hole; 11. Liquid leakage area; 12. Drainage micropores; 13. Sludge discharge pipe; 14. Liquid outlet; 15. Oil absorption filter media; 16. Drainage connector; 17. Support platform. Detailed Implementation

[0018] The present invention will now be described in further detail 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 filtration device for kitchen drain provided in this embodiment includes a cylinder 1. The top of the cylinder 1 is open, and a top cover 2 is provided at the open. The open of the cylinder 1 and the top cover 2 are connected to each other by threads to achieve a sealed connection. A water inlet channel is opened in the middle of the top cover 2. A water inlet connector 3 is formed at the center of the top of the top cover 2. The water inlet connector 3 is matched with the water inlet channel. The outer wall of the water inlet connector 3 is provided with connecting threads that cooperate with pipe joints. Several dispersed grids 4 are formed around the edge of the water inlet channel at the bottom of the top cover 2. A water blocking plate 5 is fixedly connected to the bottom of the several dispersed grids 4. That is, the bottom end of the several dispersed grids 4 is 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] A filter cake funnel 6 can be detachably connected to the bottom of the top cover 2. The filter cake funnel 6 has its opening facing upwards, and its upper part is cylindrical while its lower part is conical. The filter cake funnel 6 is fitted outside the dispersion grid 4, and the vertical center line of the filter cake funnel 6 coincides with the center line of the water-blocking plate 5. Both the cylindrical lower part and the conical part of the filter cake funnel 6 have several penetrating micro-holes 7 on their side walls. These micro-holes 7 are densely and evenly distributed. A filter cake nozzle 8 is formed at the bottom of the filter cake funnel 6, and the filter cake nozzle 8 is connected to one end of the slag discharge pipe 13. Several micro-holes connected to the slag discharge pipe 13 are formed on the side wall of the slag discharge pipe 13. The liquid outlet holes 14 are matched with the size of the hole 7. 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 base plate 9. The support base plate 9 is located at the lower part of the cylinder 1. Several support platforms 17 are formed in a ring shape on the inner wall of the lower part of the cylinder 1. The support base plate 9 is placed on the surface of several support platforms 17. Several leakage areas 11 are evenly arranged on the support base plate 9. Several drainage microholes 12 that match the size of the leakage microholes 7 are opened on each leakage area 11. Several drainage microholes 12 are densely and evenly distributed. A drainage connector 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 oil-absorbing filter material 15. The main body of the oil-absorbing filter material 15 is made of nano-silica particles with a porous structure. 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 nano-silica are shielded, and the long-chain alkane structure is provided by PE to reduce the surface energy, thereby achieving hydrophobicity and oleophilicity, thus adsorbing oil in the sewage and reducing the oil content in the sewage.

[0023] In this invention, kitchen wastewater is discharged through the sink pipe and enters the upper part of the cylinder 1 through the inlet connector 3. After being blocked by the water-blocking plate 5, the wastewater is evenly dispersed in all directions by the dispersing grid 4. Some of the wastewater dispersed to the outer wall of the filter funnel 6 passes through the leakage micropores 7 and enters the cavity of the cylinder 1 filled with oil-absorbing filter media 15. Larger solid impurities in the wastewater, along with some of the wastewater, enter the slag discharge pipe 13 through the bottom of the filter funnel 6. Smaller impurities partially enter the slag discharge pipe 13 and partially pass through the leakage micropores 7 with the wastewater. The smaller impurities that pass through the leakage micropores 7 move downwards with the wastewater in the cavity filled with oil-absorbing filter media 15. During this process, the wastewater passes through the gaps in the oil-absorbing filter media 15, and the oil-absorbing filter media 15 absorbs the oil in the wastewater. Due to the leakage... The micropores 7 and 12 are matched in size, so smaller impurities are eventually discharged with the sewage through the drainage micropores 12. The sewage entering the slag discharge pipe 13 will also pass through the liquid outlet 14 and enter the cavity filled with oil-absorbing filter material 15 for oil adsorption because the slag discharge pipe 13 also has a liquid outlet 14. Due to the support base plate 9, the sewage in the cavity is discharged through the drainage micropores 12 on the support base plate 9. Since the drainage rate of the drainage micropores 12 is relatively slow, the sewage accumulates on the support base plate 9 and submerges 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 pipe through the drainage connector 16 at the bottom of the cylinder 1.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and utility model concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A kitchen drain oil-water separation and filtration device, comprising a cylindrical body (1), characterized in that: The top of the cylinder (1) is open, and a top cover (2) is provided at the top of the cylinder (1) and sealed to it. A water inlet connector (3) is formed at the center of the top of the top cover (2). Several dispersive grids (4) are formed around the bottom edge of the bottom of the water inlet connector (3) inside the top cover (2). A water-blocking plate (5) is connected to the bottom of the dispersive grids (4) and is coaxially arranged with the water inlet connector (3). A filter cake funnel (6) is also provided at the bottom of the top cover (2) and is coaxially arranged with the water inlet connector (3). The filter cake funnel (6) is fitted outside the dispersive grids (4). Several uniformly and densely distributed leakage microholes (7) are opened on the middle and lower side walls of the filter cake funnel (6), and a leakage nozzle (8) is formed at the bottom of the filter cake funnel (6). A support base plate (9) is horizontally installed in the lower part of the cylinder (1). The support base plate (9) has a slag discharge hole (10) that matches the slag leakage hole (8) in the center. The support base plate (9) also has several leakage areas (11) evenly arranged. Each leakage area (11) has several drainage microholes (12) that match the size of the leakage microhole (7) evenly arranged. The slag discharge hole (10) is connected to the slag leakage nozzle (8) by a slag discharge pipe (13). The slag discharge pipe (13) has several outlet holes (14) that match the size of the leakage microhole (7) evenly and densely arranged. The space between the top cover (2) and the support base plate (9) of the cylinder (1) is filled with oil-absorbing filter material (15). The bottom center of the cylinder (1) is provided with a drainage connector (16).

2. The oil-water separation and filtration device for kitchen drains according to claim 1, characterized in that: The inner wall of the cylinder (1) is provided with a support base plate (9) and several support platforms (17) are formed in a ring shape. The support base plate (9) is placed on the surface of the support platforms (17) at the corresponding positions.

3. The oil-water separation and filtration device for kitchen drains according to claim 2, characterized in that: The oil-absorbing filter material (15) is a porous nano-silica particle with a PE layer on its surface.

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