Oil-water separation filter device

Abstract

The invention discloses an oil-water separation filter device which comprises a filter main body, a filtering channel, a water inlet A, a water outlet B and an oil outlet C, the filter main body comprises a containing cavity; the outer wall of the filtering channel comprises a filtering material; the filtering channel is placed in the accommodating cavity; the water inlet A is communicated with one end of the filtering channel through the outer wall of the filter main body; the water outlet B is communicated with one end of the filtering channel through the outer wall of the filter main body; the oil discharge outlet C is communicated with the upper part of the accommodating cavity; the filtering channel comprises at least two high points and at least two low points; the height of the high point is higher than that of the low point; the high points and the low points are arranged in a staggered manner; and in the working state of the filter, tiny oil drops in liquid are gathered at the high point, penetrate through the filtering material at the high point, enter the accommodating cavity and are discharged from the oil discharge outlet C.

Description

Technical Field

[0002] This invention relates to a filter device and method for horizontally arranged filter units in oily liquids, and more specifically to a filter device and method for horizontally arranged filter units. Background Technology

[0004] The environmental pollution caused by non-ferrous metal hydrometallurgical wastewater has the following characteristics: large wastewater discharge volume; dispersed and complex pollution sources; a wide variety of pollutant metals; and highly toxic pollutants.

[0005] Wastewater contains not only oil but also impurities and oily gases. The challenge lies in efficiently separating water, oil, impurities, and gases to improve filtration efficiency. Furthermore, it's crucial to enable backwashing without shutting down the system. How to ensure continuous, uninterrupted operation of the equipment, achieving online backwashing and improving operational efficiency, is a key technical challenge that the industry needs to address. Summary of the Invention

[0007] The technical solution of the present invention overcomes the shortcomings of the prior art and designs a horizontally set filter unit. In the filter unit, the liquid flows in an undulating manner in the direction of gravity, which enhances the filtration capacity by utilizing gravity and gathers the tiny oil droplets to the apex in the direction of gravity, thereby improving the efficiency of separating the tiny oil droplets.

[0008] An oil-water separation filter device includes a filter body, a filter channel, an inlet (A), an outlet (B), and an oil outlet (C). The filter body includes a receiving cavity. The filter channel has a filter material on its outer wall. The filter channel is placed inside the receiving cavity. The inlet (A) is connected to one end of the filter channel through the outer wall of the filter body. The outlet (B) is connected to the other end of the filter channel through the outer wall of the filter body. The oil outlet (C) is connected to the top of the receiving cavity. The filter channel includes at least two high points and at least two low points. The height of the high points is higher than that of the low points. The high points and low points are staggered. In the filter's operating state, tiny oil droplets in the liquid converge at the high points, pass through the filter material, enter the receiving cavity, and are discharged through the oil outlet (C).

[0009] It can be that the filter body is a rectangular column; the filter channel includes at least two filter plates, which are bent into a sawtooth shape; the four sides of the filter plates are watertightly connected to the inner wall of the rectangular column; or the two sides of the filter plates are pressed and bonded together, and the first and last ends of the filter plates are respectively connected to the inlet A or the outlet B; the filter channel includes two or more sub-channels.

[0010] Alternatively, the filter channel can be inclined to the horizontal plane, with the outlet higher than the inlet.

[0011] It is possible that the outer wall of the filter channel or sub-channel is made of wire mesh sandwiched with non-woven fabric.

[0012] Alternatively, the nonwoven fabric may be nano-modified.

[0013] It may also include an oil separator, which is disposed in the receiving cavity and divides the receiving cavity into cavity A and cavity B. The filter channel is disposed in cavity B, and the oil outlet C is connected to cavity A. The oil separator is made of filter material or the oil separator includes an opening for oil supply.

[0014] It may also include adapter A and adapter B; adapter A includes a receiving cavity A, which is connected to one end of the filter body, the receiving cavity A is connected to the filter channel, and the receiving cavity A is connected to the A inlet; adapter B includes a receiving cavity B, which is connected to the other end of the filter body, the receiving cavity B is connected to the filter channel, and the receiving cavity B is connected to the B outlet.

[0015] It may also include an oil drain port C1, which is connected to the receiving cavity B.

[0016] It may also include a receiving cavity B comprising a dividing plate, the dividing plate dividing the receiving cavity B into receiving cavities B1 and B2, with receiving cavities B1 and B2 connected at their top ends.

[0017] It may also include two or more support feet, which are connected to the filter body.

[0018] One of the beneficial effects of this invention is that in the filtration unit, the liquid flows in an undulating manner in the direction of gravity, thereby enhancing the filtration capacity by utilizing gravity.

[0019] One of the beneficial effects of this invention is that in the filtration unit, the liquid flows in an undulating manner in the direction of gravity, which gathers the tiny oil droplets to the apex in the direction of gravity, thereby improving the efficiency of separating the tiny oil droplets.

[0020] One of the beneficial effects of this invention is that the numerous high points and low points are staggered, which increases the probability of collision between emulsified oil droplets in the liquid and the filter material, thereby improving the filtration efficiency of the filter material.

[0021] One of the beneficial effects of this invention is that the oil drain port C is located above the receiving cavity, which facilitates the discharge of the upper layer of oil.

[0022] One of the advantages of this invention is that the filter body is a rectangular column, which facilitates processing. Of course, it can also be a circular filter pipe, but bending a circular filter pipe is more difficult.

[0023] One of the beneficial effects of the present invention is that the filtration channel includes at least two filter plates and multiple filter plates, which improves the filtration effect and allows oil droplets to gradually converge to the upper layer.

[0024] One of the advantages of this invention is that the four sides of the filter plate are watertightly connected to the inner wall of the rectangular column, making processing simple and replacement convenient;

[0025] One of the advantages of this invention is that the filter plate is pressed and bonded along its four edges, making processing simpler and facilitating the replacement of the entire filter channel.

[0026] One of the beneficial effects of this invention is that the filter channel is inclined to the horizontal plane, which improves the flow efficiency of the liquid or the separation effect of oil droplets.

[0027] One of the beneficial effects of this invention is that the outer wall of the filter channel or sub-channel is made of steel wire mesh sandwiched with non-woven fabric, which has a simple structure and can be processed into ultra-long lengths through rolls.

[0028] One of the beneficial effects of this invention is that the non-woven fabric, after being modified with nanotechnology, can improve the aggregation ability of oil droplets or improve the oil separation ability.

[0029] One of the beneficial effects of this invention is that by setting up an oil separator, the exchange and circulation between the upper oil and the lower water are reduced, preventing the separated oil from re-entering the filtration channel.

[0030] One of the beneficial effects of this invention is that the through holes on the oil separator provide a passage for oil to pass through, while reducing the exchange and circulation of water.

[0031] One of the beneficial effects of this invention is that the adapter A and adapter B reduce the difficulty of connecting the filter channel to the external pipe.

[0032] One of the beneficial effects of the present invention is that the receiving cavity B1 and receiving cavity B2 are connected at the top, which improves the separation ability of oil droplets at the outlet and facilitates the discharge of water from the bottom layer. Attached Figure Description

[0034] Figure 1 This is a schematic cross-sectional view along the centerline of one of the embodiments;

[0035] Figure 2 This is a schematic cross-sectional view along the centerline of one of the embodiments;

[0036] Figure 3 This is a schematic diagram of the outer wall layering in one of the embodiments;

[0037] Figure 4 This is a schematic cross-sectional view along the centerline of one of the embodiments;

[0038] Figure 5 This is a schematic diagram of a filter channel in one embodiment;

[0039] Figure 6 This is a perspective view of one of the embodiments. Detailed Implementation

[0041] The invention will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 1 A schematic diagram of the centerline section of one of the embodiments.

[0043] An oil-water separation filter device includes: a filter body 0110, a filter channel 0150, an A-inlet 0120, a B-outlet 0130, and a C-oil outlet 0140; the filter body includes a receiving cavity 0111; the filter channel has a filter material on its outer wall; the filter channel is placed in the receiving cavity; the filter body is a rectangular column; the filter channel includes at least two filter plates, the filter plates are bent into a sawtooth shape, and the four sides of the filter plates are watertightly connected to the inner wall of the rectangular column; A The inlet (B) is connected to one end of the filter channel through the outer wall of the rectangular column; the outlet (C) is connected to one end of the filter channel through the outer wall of the rectangular column; the oil outlet (C) is connected to the top of the receiving cavity; the filter channel includes at least two high points (O161) and at least two low points (O162); the height of the high points is higher than the low points; the high points and the low points are staggered; the filter operates as follows: tiny oil droplets in the liquid gather at the high points, pass through the filter material at the high points, enter the receiving cavity, and are discharged through the oil outlet (C).

[0044] In the liquid, tiny oil droplets collide with the filter material and converge into larger oil droplets. The specific gravity of the oil droplets is less than that of water. When the oil droplets converge at a high point, they are difficult to flow with the water to a low point when the liquid flow rate is low. Even if some oil droplets flow downwards, they will collide with the filter material during the flow process and enter the receiving cavity 0111, where they converge at the top of the receiving cavity 0111.

[0045] During use, the oil drain port 0140 can be opened periodically to drain the top oil layer. If the oil volume is large, the flow rate of the oil drain port 0140 can be controlled to gradually drain the oil layer.

[0046] As shown in the figure, the filter channel includes two or more sub-channels. For example... Figure 1 In the middle, sub-channel 0151, sub-channel 0152.

[0047] like Figure 2 A schematic cross-sectional view along the centerline of one embodiment;

[0048] The filter channel 0250 is inclined to the horizontal plane, and the outlet is higher or lower than the outlet.

[0049] The filter body 0210 can be set at an inclined angle. If the oil content is high, the outlet can be lower than the outlet to facilitate rapid oil separation; if the oil content is low, the outlet can be higher than the outlet to facilitate rapid liquid flow in the filter channel.

[0050] like Figure 3 A schematic diagram of the outer wall layering in one embodiment;

[0051] The outer wall of the filter channel or sub-channel is made of wire mesh sandwiched with non-woven fabric.

[0052] like Figure 3 The outer wall of the filter channel is formed by bending the filter plate. The filter plate consists of an upper steel wire mesh 0310, a lower steel wire mesh 0330 and an intermediate layer 0320. The intermediate layer is the filter material, which can be a non-woven filter cloth.

[0053] The aforementioned nonwoven fabric undergoes nano-modification. Nano-modified nonwoven fabrics can be either hydrophobic or oleophobic. One type of material allows oil droplets to pass through the filter cloth quickly, while the other aggregates oil droplets. Oleophobic filter cloths are suitable for handling liquids with high oil content, while hydrophobic filter cloths are suitable for handling liquids with low oil content. Tiny oil droplets easily aggregate and collide on the filter cloth, forming larger droplets that converge at the top and pass through the filter cloth under pressure.

[0054] like Figure 2 It includes an oil separator 0263, which is disposed in a receiving cavity, dividing the receiving cavity into cavity A (labeled 0266 in the figure) and cavity B (labeled 0265 in the figure). The filter channel is disposed in cavity B. The oil outlet C is connected to cavity A. The oil separator is made of filter material or the oil separator includes an opening for oil supply.

[0055] like Figure 2 It also includes adapter component A (reference 0271 in the figure) and adapter component B (reference 0272 in the figure); adapter component A includes a receiving cavity A, which is connected to one end of the filter body, the receiving cavity A is connected to the filter channel, and the receiving cavity A is connected to the A inlet 0281; adapter component B includes a receiving cavity B, which is connected to the other end of the filter body, the receiving cavity B is connected to the filter channel, and the receiving cavity B is connected to the B outlet 0282.

[0056] like Figure 2It includes C1 oil drain port 0291, which is connected to the receiving cavity B.

[0057] like Figure 4 A schematic cross-sectional view along the centerline of one embodiment; the receiving cavity B, labeled 0410 in the figure, includes a dividing plate 0420, which divides the receiving cavity B into receiving cavities B1 (labeled 0411 in the figure) and B2 (labeled 0412 in the figure), with receiving cavities B1 and B2 connected at their top ends.

[0058] like Figure 5 A schematic diagram of a filter channel in one embodiment; in the figure, the filter body is removed, the edge of the filter plate is closed, the liquid flows in the filter channel formed in the middle of the filter plate, and the oil droplets pass through the filter plate at the high point and enter the receiving cavity of the filter body.

[0059] like Figure 6 A perspective view of one embodiment; an oil-water separation filter device, comprising: a filter body 0610, a filter channel 0650, an A inlet 0620, a B outlet 0630, and an C oil outlet 0640; the filter body includes a receiving cavity 0611; the filter body is a rectangular column; the outer wall of the filter channel is formed by bending a filter plate.

[0060] like Figure 6 It includes an oil separator 0663, which is disposed in the receiving cavity and divides the receiving cavity into cavity A and cavity B.

[0061] like Figure 6 It also includes adapter A (reference 0671 in the figure) and adapter B (reference 0672 in the figure); adapter A includes a receiving cavity A, which is connected to one end of the filter body, and the receiving cavity A is connected to the filter channel and the inlet of A; adapter B includes a receiving cavity B, which is connected to the other end of the filter body, and the receiving cavity B is connected to the filter channel and the outlet of B.

[0062] like Figure 6 It includes C1 oil drain port 0691, which is connected to the receiving cavity B.

[0063] like Figure 6 The receiving cavity B in the figure includes a dividing plate that divides the receiving cavity B into receiving cavities B1 and B2, and receiving cavities B1 and B2 are connected at the top.

[0064] like Figure 6 It also includes two or more support feet 0699, which are connected to the filter body.

[0065] like Figure 6 A side perspective view of one embodiment; a valve body 0710 is installed at the oil drain port in the figure, and the valve body 0710 can start the oil draining process.

[0066] The above description is merely an embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. An oil-water separation filter device, characterized in that, Includes the filter body, filter channel, A inlet, B outlet, and C oil drain. The filter body includes a receiving cavity; Filter channel, the outer wall of the filter channel includes filter material; The filter channel is placed inside the receiving cavity; A water inlet is connected to one end of the filter channel through the outer wall of the filter body; Outlet B is connected to one end of the filter channel through the outer wall of the filter body; C. The oil drain port is connected to the top of the receiving cavity; The filter channel includes at least two high points and at least two low points; The high point is higher than the low point; the high point and the low point are staggered. Filter operating state: Tiny oil droplets in the liquid gather at the highest point, pass through the filter material, enter the receiving cavity, and are discharged from the C-type oil outlet.

2. The oil-water separation filter device according to claim 1, characterized in that, The filter body is a rectangular prism; The filter channel includes at least two filter plates, which are bent into a sawtooth shape. The four sides of the filter plate are watertightly connected to the inner wall of the rectangular column; Alternatively, the two sides of the filter plate can be pressed and bonded together, with the first and last ends of the filter plate connected to either inlet A or outlet B. The filtering channel includes two or more sub-channels.

3. The oil-water separation filter device according to claims 1 to 3, characterized in that, The filter channel is inclined to the horizontal plane, and the outlet is higher than the inlet.

4. The oil-water separation filter device according to claims 1 to 3, characterized in that, The outer wall of the filter channel or sub-channel is made of wire mesh sandwiched with non-woven fabric.

5. The oil-water separation filter device according to claim 4, characterized in that, The nonwoven fabric is nano-modified.

6. The oil-water separation filter device according to claim 1, characterized in that, It also includes an oil separator plate, which is disposed in the receiving cavity and divides the receiving cavity into cavity A and cavity B. The filter channel is disposed in cavity B, and the oil outlet C is connected to cavity A. The oil separator plate is made of filter material or the oil separator plate includes openings for oil supply.

7. The oil-water separation filter device according to claim 1 or 2, characterized in that, It also includes adapter component A and adapter component B; The adapter A includes a receiving cavity A, which is connected to one end of the filter body. The receiving cavity A is connected to the filter channel and the receiving cavity A is connected to the water inlet of A. The adapter component B includes a receiving cavity B, which is connected to the other end of the filter body. The receiving cavity B is in communication with the filter channel and the receiving cavity B is in communication with the outlet of the filter.

8. The oil-water separation filter device according to claim 7, characterized in that, It also includes an oil drain port C1, which is connected to the receiving cavity B.

9. The oil-water separation filter device according to claim 8, characterized in that, The receiving cavity B includes a dividing plate that divides the receiving cavity B into receiving cavity B1 and receiving cavity B2, with receiving cavity B1 and receiving cavity B2 connected at their top ends.

10. The oil-water separation filter device according to claim 1, characterized in that, It also includes two or more support feet, which are connected to the filter body.

Images