CN215048895U

CN215048895U - Oil-removing suspended matter-removing filtering device

Info

Publication number: CN215048895U
Application number: CN202120846289.4U
Authority: CN
Inventors: 董晨阳; 叶翔龙; 叶纯
Original assignee: Shenzhen Qingyuanbao Technology Co ltd
Current assignee: Shenzhen Qingyuanbao Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-07
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a filtering device for removing oil and suspended matters, which comprises a container, a primary filtering layer and a secondary filtering layer; the bottom of the container is provided with a slag discharge port, the side wall of the bottom of the container is provided with a water inlet, the sections of the first-stage filter layer and the second-stage filter layer are arc-shaped structures, the first-stage filter layer and the second-stage filter layer are respectively arranged in the container, the precision of the second-stage filter layer is higher than that of the first-stage filter layer, and sewage in the container is filtered by the first-stage filter layer and the second-stage filter layer and then is discharged from a water outlet of the container; the filter has the advantages that the sections of the first-stage filter layer and the second-stage filter layer are arc-shaped structures, so that dead angles of solid-liquid contact can be reduced, and the first-stage filter layer and the second-stage filter layer are uniformly pressed to achieve a better filtering effect; the suspended matters can be effectively filtered and the filter residue can be discharged; the floating oil can be effectively filtered and the waste oil can be recycled; the first-stage filter layer and the second-stage filter layer are cleaned regularly by utilizing backwashing, so that pollution of the first-stage filter layer and the second-stage filter layer is reduced, and higher separation efficiency is maintained.

Description

Oil-removing suspended matter-removing filtering device

Technical Field

The utility model belongs to the technical field of the water treatment technique and specifically relates to a deoiling removes suspended solid filter equipment.

Background

In the oily wastewater, the components of common oil pollutants are rich, the sources are relatively complex, and the oil pollutants exist in various forms, so that the difficulty is increased for the later treatment. The petroleum industry inevitably produces a large amount of oily wastewater; lubricating oils in the machine manufacturing industry and edible oils in the catering industry also produce large amounts of oily waste water. It is rare for the relative density of oils to be greater than 1, which means that oil contaminants are present in the oil-in-float state in large proportions, typically having particle sizes above 15 μm. The waste water is often provided with large-particle suspended matters, the suspended matters are generally nontoxic, but the waste water can adsorb organic toxicants, heavy metals and the like to form composite pollutants with larger hazards, the suspended matters with high content not only easily cause the blockage of equipment, but also aggravate the burden of sedimentation tanks and other tank bodies, reduce the effective volume of the tank bodies and immediately influence the treatment effect. Therefore, the oil removal and the suspended matter removal in the wastewater treatment by the pretreatment mode become an essential link. Nowadays, physical methods are mainly used for separation, depending on the prevailing conditions of the oil and the characteristics of the suspension. The physical methods are gravity or mechanical separation, filtration, membrane separation and air flotation, which utilize the principles of different particle sizes and densities and incompatibility, and have the advantages of simple structure and low operation cost, but the pressure of membrane filtration is gradually increased along with the increase of operation time, and backwashing or replacement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art and providing a filtering device for removing oil and suspended matters.

The utility model discloses a technical scheme:

a filtering device for removing oil and suspended matters comprises a container, a primary filtering layer and a secondary filtering layer; the bottom of container is equipped with row cinder notch, the lateral wall of container bottom is equipped with the water inlet, the cross-section of one-level filter layer and second grade filter layer is the arc structure, one-level filter layer and second grade filter layer set up respectively in the container, and the precision of second grade filter layer is greater than the precision of one-level filter layer, sewage in the container is discharged from the delivery port of container after one-level filter layer and second grade filter layer filter.

One preferred scheme is that the cross sections of the first-stage filter layer and the second-stage filter layer are semi-elliptical structures, and the first-stage filter layer and the second-stage filter layer are arranged in parallel.

One preferable scheme is that an oil drain port is arranged between the first-stage filter layer and the second-stage filter layer.

One preferable scheme is that the first-stage filtering layer is a silk screen filtering membrane, and the second-stage filtering layer is a microfiltration membrane.

One preferred scheme is that the mesh aperture of the silk screen filter membrane is 10-30 mu m, and the mesh aperture of the micro-filtration membrane is 0.05-0.2 mu m.

One preferred scheme is that the top of the container is provided with a water supplementing pipe, and an outlet of the water supplementing pipe is provided with a rotary spray head.

The bottom of the container is provided with a sewage collection funnel, and the sewage collection funnel is connected with a slag discharge port.

One preferable scheme is that the cross section of the first-stage filter layer and the second-stage filter layer is of a bowl-shaped structure.

Synthesize above-mentioned technical scheme, the beneficial effects of the utility model: the cross sections of the first-stage filter layer and the second-stage filter layer are arc-shaped structures, so that dead angles of solid-liquid contact can be reduced, the first-stage filter layer and the second-stage filter layer are uniformly pressed to achieve a better filtering effect, and filtered filter residues are discharged from a residue discharge port; the suspended matters can be effectively filtered and the filter residue can be discharged; the floating oil can be effectively filtered and the waste oil can be recycled; the first-stage filter layer and the second-stage filter layer are cleaned regularly by utilizing backwashing, so that pollution of the first-stage filter layer and the second-stage filter layer is reduced, and higher separation efficiency is maintained.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a plan view of the present invention.

Detailed Description

For the purpose of illustrating the spirit and purposes of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the oil and suspended matter removing filter device comprises a container 10, a primary filter layer 11 and a secondary filter layer 12; the bottom of container 10 is equipped with row cinder notch 13, the lateral wall of container 10 bottom is equipped with water inlet 14, the cross-section of one-level filter layer 11 and second grade filter layer 12 is the arc structure, one-level filter layer 11 and second grade filter layer 12 set up respectively in container 10, and the precision of second grade filter layer is greater than the precision of one-level filter layer, sewage in the container 10 filters the back through one-level filter layer 11 and second grade filter layer 12 and discharges from container 10's delivery port 15. The cross sections of the first-stage filter layer 11 and the second-stage filter layer 12 are arc-shaped structures, and the precision is gradually increased. The design can reduce the dead angle of solid-liquid contact like this, lets first-level filter layer 11 and second grade filter layer 12 pressurized evenly in order to reach better filter effect, and the filter residue after the filtration is discharged from row cinder notch 13.

As shown in fig. 1 and 2, the cross section of the first-stage filter layer 11 and the second-stage filter layer 12 is a semi-elliptical structure, and the first-stage filter layer 11 and the second-stage filter layer 12 are arranged in parallel. The cross sections of the first-stage filter layer 11 and the second-stage filter layer 12 are semi-elliptical structures, so that the filtering area can be increased. The second grade filter layer 12 sets up the upside at first-level filter layer 11, and the cross-section of first-level filter layer 11 and second grade filter layer 12 is half oval structure can reduce the dead angle of solid-liquid contact, lets first-level filter layer 11 and second grade filter layer 12 atress even in order to reach better filter effect.

As shown in fig. 1 and 2, an oil drain port 16 is provided between the first-stage filter layer 11 and the second-stage filter layer 12. The oil discharge port 16 is arranged at the edge of the first-stage filter layer 11 and the second-stage filter layer 12, the first-stage filter layer 11 can filter large suspended particles but cannot filter oil substances, the second-stage filter layer 12 can completely intercept the oil substances, and the oil substances filtered by the second-stage filter layer 12 overflow from the oil discharge port 16.

As shown in fig. 1 and 2, the primary filter layer 11 is a wire mesh filter membrane, and the secondary filter layer 12 is a microfiltration membrane.

As shown in the figures 1 and 2, the mesh aperture of the silk screen filter membrane is 10-30 μm, and the mesh aperture of the micro-filtration membrane is 0.05-0.2 μm. The first filtering layer 11 is a wire mesh filtering film with precision of about 20 μm, which can filter large suspended particles but can not filter oil substances, and the second filtering layer 12 is a micro-filtering film with precision of about 0.1 μm, which can completely intercept oil substances. Since the oil, which has a relative density greater than 1, is present mostly in the form of oil slick, it may escape through the oil drain 16 provided between the first filter layer 11 and the second filter layer 12. After being filtered by the first-stage filter layer 11 and the second-stage filter layer 12, the water is discharged from a water outlet 15 of the container 10.

As shown in fig. 1 and 2, a water replenishing pipe 17 is arranged at the top of the container 10, and a rotary spray head 18 is arranged at the outlet of the water replenishing pipe 17. The water supplementing pipe 17 and the rotary spray head 18 are used for backwashing the first-stage filter layer 11 and the second-stage filter layer 12, impurities and the like attached to the first-stage filter layer 11 and the second-stage filter layer 12 can be washed, the frequency of changing the first-stage filter layer 11 and the second-stage filter layer 12 is reduced, and the service durability is improved.

As shown in fig. 1 and 2, a dirt collection funnel 19 is arranged at the bottom of the container 10, and the dirt collection funnel 19 is connected with the slag discharge port 13. The bottom of the container 10 is provided with a sewage collecting funnel 19 for better concentrating and discharging the settled filter residues.

In some embodiments, as shown in fig. 1 and 2, the cross-section of the primary and

secondary filter layers

11, 12 is bowl-shaped. The cross-section of the first-stage filter layer 11 and the second-stage filter layer 12 is of a bowl-shaped structure, so that the filtering area can be increased, the dead angle of solid-liquid contact can be reduced, and the first-stage filter layer 11 and the second-stage filter layer 12 are uniformly pressed to achieve a better filtering effect.

The above is a detailed implementation manner of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A filtering device for removing oil and suspended matters is characterized by comprising a container, a primary filtering layer and a secondary filtering layer; the bottom of container is equipped with row cinder notch, the lateral wall of container bottom is equipped with the water inlet, the cross-section of one-level filter layer and second grade filter layer is the arc structure, one-level filter layer and second grade filter layer set up respectively in the container, and the precision of second grade filter layer is greater than the precision of one-level filter layer, sewage in the container is discharged from the delivery port of container after one-level filter layer and second grade filter layer filter.

2. The oil and suspended matter removing and filtering device as claimed in claim 1, wherein the cross section of the primary filtering layer and the secondary filtering layer is a semi-elliptical structure, and the primary filtering layer and the secondary filtering layer are arranged in parallel.

3. The oil and suspended matter removing and filtering device as claimed in claim 1 or 2, wherein an oil drain port is provided between the primary filtering layer and the secondary filtering layer.

4. The oil and suspended matter removing and filtering device as claimed in claim 3, wherein the primary filtering layer is a wire mesh filtering membrane, and the secondary filtering layer is a microfiltration membrane.

5. The oil and suspended matter removing and filtering device as claimed in claim 4, wherein the mesh opening of the wire mesh filter membrane is 10-30 μm, and the mesh opening of the micro-filtration membrane is 0.05-0.2 μm.

6. The oil and suspended matter removing and filtering device as claimed in claim 1, wherein a water replenishing pipe is arranged at the top of the container, and a rotary spray nozzle is arranged at an outlet of the water replenishing pipe.

7. The oil and suspended matter removing and filtering device as claimed in claim 1, wherein a dirt collecting funnel is arranged at the bottom of the container, and the dirt collecting funnel is connected with the slag discharging port.

8. The oil and suspended matter removing and filtering device as claimed in claim 1, wherein the cross section of the primary filter layer and the secondary filter layer is bowl-shaped.