CN219072140U

CN219072140U - Filtering and separating device

Info

Publication number: CN219072140U
Application number: CN202320165712.3U
Authority: CN
Inventors: 陈文帅; 陈百灵; 李勍; 王政文
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-05-26
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a filtering and separating device, in particular to the technical field of oil-water separation, which comprises a separating box, a first recovery box and a nanocellulose-based filter membrane, wherein the separating box is positioned above the first recovery box and is fixedly connected with the first recovery box in a sealing way, the bottom of the separating box is communicated with the top opening of the first recovery box, a filter plate is covered at the opening, filter holes are formed in the filter plate, the nanocellulose-based filter membrane is fully covered on the filter plate, the nanocellulose-based filter membrane can enable water in the separating box to pass through and flow to the first recovery box, an inlet is formed in the top of the separating box, an outlet is formed in one side face of the separating box, and the outlet is used for discharging oil liquid with density smaller than that of water. The device has low energy consumption and low manufacturing cost, has good separation effect of water and the liquid phase mixture which is insoluble in water and has the density less than that of water, and can reduce environmental pollution.

Description

Filtering and separating device

Technical Field

The utility model relates to the technical field of oil-water separation, in particular to a filtering separation device.

Background

The existing industrial field has more oil-water mixture, and the heating oil-water separation method, ultrafiltration membrane separation method, adsorption degreasing method and the like for separating the oil-water mixture have the defects of high energy consumption, high cost, low efficiency, and large pollution.

The gravity separation method is the method with the lowest cost and the widest application range in the oil-water mixture separation method, and mainly aims to separate oil from water by naturally floating on the upper layer of the water through precipitation under the action of simple gravity according to the difference of density or chemical properties of the water and the oil. Patent CN 107913534A-a filtering membrane type oil-water separation device and method discloses that water accumulated at the bottom after layering of an oil-water mixture can be timely discharged from the oil-water separation device through a filtering membrane, so that water and oil in the oil-water mixture are separated, the filtering membrane used in the oil-water separation device at present is high in manufacturing cost and does not have biodegradability, the filtering membrane is high in cost in the treatment process after manufacturing and using, and environmental pollution is possibly caused.

Disclosure of Invention

The utility model aims to provide a filtering and separating device which solves the problems in the prior art, has low energy consumption and low manufacturing cost, has good separating effect of liquid phase mixture of water and oil with smaller water density and can reduce environmental pollution.

In order to achieve the above object, the present utility model provides the following solutions:

the utility model provides a filtering and separating device which comprises a separating box, a first recovery box and a nanocellulose-based filter membrane, wherein the separating box is positioned above the first recovery box and is fixedly connected with the first recovery box in a sealing way, the bottom of the separating box is communicated with the top of the first recovery box through an opening, a filter plate is covered at the opening, filter holes are formed in the filter plate, the nanocellulose-based filter membrane is fully covered on the filter plate, the nanocellulose-based filter membrane can enable water in the separating box to pass through and flow to the first recovery box, an inlet is formed in the top of the separating box, an outlet is formed in one side face of the separating box, and the outlet is used for discharging oil liquid with density smaller than that of the water.

Preferably, the filter plate further comprises a slow flow plate, wherein the slow flow plate is parallel to the filter plate, and two ends of the slow flow plate are fixedly arranged on two opposite inner side walls of the separation box, which are not provided with the outlet.

Preferably, the device further comprises a connecting pipe and a second recovery tank, wherein the outlet is in sealing connection and communication with one end of the connecting pipe, the other end of the connecting pipe is used for being communicated with the second recovery tank, and the second recovery tank is used for collecting liquid with density smaller than that of water.

Preferably, the bottom of the first recovery tank is provided with a water outlet.

Preferably, the thickness of the slow flow plate is larger than 5cm, and the area of the slow flow plate is 60% -85% of the area of the filter plate.

Preferably, the inlet is located directly above the slow flow plate.

Preferably, the height of the slow flow plate is lower than the height of the lowest point of the outlet.

Preferably, the side of the separation box is provided with a emptying port, the emptying port is provided with a switch, the switch can control the emptying port to be opened and closed, and the emptying port is close to the filter plate.

Compared with the prior art, the utility model has the following technical effects:

the utility model provides a filtering and separating device, wherein a separating box is fixed above a first recovery box in a sealing way, an oil-water mixture is poured into the separating box from an inlet, and the density of oil liquid in the oil-water mixture separated by the filtering and separating device is smaller than that of water, so that according to the density difference between the water and the oil liquid, the oil liquid naturally floats on the upper layer of the water to achieve the layering purpose; the filter plate provided with the filter holes is arranged on the opening, and the nanocellulose-based filter film completely covers the nanocellulose-based filter film, and the nanocellulose-based filter film allows water to pass through and blocks oil liquid from passing through, so that only water can flow from the separation tank to the first recovery tank under the action of simple gravity to achieve the aim of separating the oil and water mixture; the raw materials of the nano cellulose-based filter membrane are derived from residues of all forest products or agricultural products, the cost of the raw materials is low, the nano cellulose-based filter membrane can be recycled after being used, the membrane is formed again, and the nano cellulose-based filter membrane has the advantage of being degradable, so that the environmental pollution can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a filtering separation device of the present utility model.

In the figure: 1-a separation box; 2-nanocellulose-based filter membrane; 3-a first recovery tank; 4-a filter plate; 5-import; 6-outlet; 7-filtering holes; 8-slow flow plates; 9-a second recovery tank; 10-water outlet; 11-emptying port; 12-connecting pipes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The utility model provides a filtering and separating device, as shown in figure 1, which comprises a separating box 1, a first recovery box 3 and a nanocellulose-based filter membrane 2, wherein the separating box 1 is positioned above the first recovery box 3 and is fixedly connected with the first recovery box 3 in a sealing way, the bottom of the separating box 1 is communicated with the top of the first recovery box 3 through an opening, a filter plate 4 is covered at the opening, the filter plate 4 is provided with a filter hole 7, the nanocellulose-based filter membrane 2 is covered above the filter plate 4, the nanocellulose-based filter membrane 2 can enable water in the separating box 1 to pass through and flow to the first recovery box 3, an inlet 5 is formed in the top surface of the separating box 1, an outlet 6 is formed in one side surface of the separating box 1, the outlet 6 is used for discharging oil liquid with the density smaller than that of water, the separating box 1 is fixedly sealed above the first recovery box 3, an oil-water mixture is poured into the separating box 1 from the inlet 5, and the oil liquid naturally floats on the upper layer of water according to the density difference of the water and the water to achieve the layering purpose; the nano cellulose-based filter membrane 2 is completely paved on the filter plate 4, and the nano cellulose-based filter membrane 2 allows water to pass through and blocks oil liquid from passing through, so that only water can pass through the nano cellulose-based filter membrane 2 and the filter holes 7 to flow from the separation tank 1 to the first recovery tank 3 under the action of simple gravity to separate the oil and water mixture; the raw materials of the nanocellulose-based filter membrane 2 are residues from all forest products or agricultural products, the cost of the raw materials is low, the nanocellulose-based filter membrane 2 can be recycled after being used, the membrane is formed again, and the nanocellulose-based filter membrane 2 has the advantage of being degradable, so that the environmental pollution can be reduced.

It is further preferable in the embodiment of the present embodiment that the filtration separation device further includes a slow flow plate 8, the slow flow plate 8 is parallel to the filter plate 4, two ends of the slow flow plate 8 are fixedly disposed on two opposite inner side walls of the separation tank 1, which are not provided with the outlet 6, and the setting of the slow flow plate 8 can weaken the physical impact of the oil-water mixture flowing from the inlet 5 on the nano cellulose-based filter membrane 2, so that the oil-water mixture flowing in speed is prevented from punching the nano cellulose-based filter membrane 2 too fast, and the nano cellulose-based filter membrane 2 is damaged, and filtration and separation cannot be completed.

It is further preferred in the embodiment of the present embodiment that the filtering and separating device further comprises a connecting pipe 12 and a second recovery tank 9, the outlet 6 is connected and communicated with one end of the connecting pipe 12 in a sealing manner, the other end of the connecting pipe 12 is connected with the second recovery tank 9, the second recovery tank 9 is used for collecting oil liquid with a density smaller than that of water, the layered oil-water mixture flows to the first recovery tank 3, the oil liquid is left in the separating tank 1, and when the oil liquid level reaches the outlet 6, the oil liquid flows into the second recovery tank 9 from the outlet 6, so that a space is always provided in the separating tank 1 to fill a new oil-water mixture.

It is further preferable in the embodiment of the present embodiment that the bottom of the first recovery tank 3 is provided with a water outlet 10, and when the first recovery tank 3 is filled with water or all the oil-water mixture is filtered, the water outlet 10 may be opened to facilitate draining the water in the first recovery tank 3.

In this embodiment, it is further preferred that the thickness of the slow flow plate 8 is greater than 5cm, the area of the slow flow plate 8 is 60% -85% of the area of the filter plate 4, the inlet 5 is located right above the slow flow plate 8, when the oil-water mixture flows into the separation tank 1 from the inlet 5, the slow flow plate 8 located right below the inlet 5 can play a better role in buffering the oil-water mixture, and the thickness and the area of the slow flow plate 8 can be adjusted according to practical use.

In the embodiment of the present embodiment, it is further preferable that the height of the slow flow plate 8 is lower than the lowest point of the outlet 6, so that the oil-water mixture flowing down from the slow flow plate 8 is prevented from flowing to the outlet 6, and the separation effect of the oil-water mixture is prevented from being affected.

It is further preferable in the embodiment of the present embodiment that the side surface of the separation tank 1 is provided with a emptying port 11, the emptying port 11 is provided with a switch, the switch can control the emptying port to be opened and closed, the emptying port 11 is close to the filter plate 4, the emptying port 11 is provided at the bottom of the separation tank 1 close to the filter plate 4, and the closer the distance from the emptying port 11 to the bottom of the filter plate 4 is, the better, the switch can be opened after the filtration of the oil-water mixture is completed, so that the residual oil liquid below the outlet 6 in the separation tank 1 can be quickly and completely discharged, and the emptying port 11 can be connected with a hose or a tap according to actual use requirements, so that the oil liquid is conveniently discharged.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims

1. A filtration and separation device, characterized in that: including separator tank, first collection tank and nanocellulose-based filter membrane, the separator tank is located first collection tank top just with first collection tank sealing fixed connection, the bottom of separator tank with the top of first collection tank is through opening intercommunication, just the opening part covers there is the filter, the filtration pore has been seted up to the filter, all be covered with on the filter nanocellulose-based filter membrane, nanocellulose-based filter membrane can make the water in the separator tank passes through and flows to first collection tank, the import has been seted up at the separator tank top, the export has been seted up to one side of separator tank, the export is used for discharging the oil liquid that density is less than water.

2. The filtration separation device of claim 1, wherein: still include the slow flow board, the slow flow board with the filter is parallel, the both ends of slow flow board fixed set up in the separator box has not been seted up on two opposite inside walls of export.

3. The filtration separation device of claim 1, wherein: still include connecting pipe and second collection box, the export with the one end sealing connection and the intercommunication of connecting pipe, the other end of connecting pipe be used for with the second collection box intercommunication, the second collection box is used for collecting the liquid that density is less than water.

4. The filtration separation device of claim 1, wherein: the bottom of the first recovery tank is provided with a water outlet.

5. The filtration separation device of claim 2, wherein: the thickness of the slow flow plate is larger than 5cm, and the area of the slow flow plate is 60% -85% of the area of the filter plate.

6. The filtration separation device of claim 5, wherein: the inlet is positioned right above the slow flow plate.

7. The filtration separation device of claim 2, wherein: the height of the slow flow plate is lower than the height of the lowest point of the outlet.

8. The filtration separation device of claim 1, wherein: the side of separator box has seted up the empty mouth, the empty mouth is provided with the switch, the switch can control empty mouth is opened and is closed, empty mouth is close to the filter.