Device for removing organic solvent in wastewater through nanofiltration

Abstract

The utility model discloses a wastewater nanofiltration organic solvent removal device which comprises a sand filtering assembly, a nanofiltration box assembly, a nanofiltration assembly and a chemical separation assembly, the front end of the sand filtering assembly is fixedly connected with the nanofiltration box assembly, the front end of the nanofiltration box assembly is in sliding connection with the nanofiltration assembly, the front end of the nanofiltration box assembly is fixedly connected with the chemical separation assembly, and the chemical separation assembly is fixedly connected with the sand filtering assembly. The device is characterized by further comprising a sand filtering assembly, the sand filtering assembly comprises a sand filtering box and a display controller, a sliding groove and a sand outlet valve pipe are arranged in the sand filtering box, the sand outlet valve pipe is fixedly connected to the lower end of the sand filtering box, and the display controller is fixedly connected to the right side of the sand filtering box. And when the device is used for nanofiltration of wastewater, chemical separation can be carried out, so that the nanofiltration effect is relatively good.

Description

Technical Field

[0001] The utility model relates to the field of water treatment, in particular to a wastewater nanofiltration device for removing organic solvents. Background Art

[0002] Nanofiltration is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration. The pore size of nanofiltration membranes is in the range of several nanometers. Compared with other pressure-driven membrane separation processes, it appeared later. Its appearance can be traced back to the research of JECadotte's NS-300 membrane in the late 1970s. After that, nanofiltration developed rapidly, and membrane modules were commercialized in the mid-1980s. Most nanofiltration membranes are derived from reverse osmosis membranes, such as CA, CTA membranes, aromatic polyamide composite membranes and sulfonated polyethersulfone membranes. When producing chemical products, a large amount of wastewater is generated, which needs to be biochemically treated to reduce COD and ammonia nitrogen before it can be discharged. However, the wastewater must be desalinated before entering the biochemical pool. The conventional method in the past was distillation desalination, which not only takes a long time but also has a high cost. Therefore, nanofiltration equipment is needed to solve the above-mentioned shortcomings.

[0003] For example, a nanofiltration device for water treatment engineering described in (authorization announcement number CN208517103U) includes a filter box, a wastewater inlet is provided on the top of the filter box, two groups of filter baffles are provided in sequence from top to bottom in the inner cavity of the filter box, the top output end of the stirring motor extends to the inner cavity of the filter box and is connected to the stirring device, a nanofiltration membrane is provided in the inner cavity of the nanofiltration box, a drive motor is provided on the right side of the top of the nanofiltration box, and the bottom output end of the drive motor extends to the inner cavity of the nanofiltration box and is connected to an eccentric wheel, and the left outer wall of the eccentric wheel is in contact with the top of the right outer wall of the nanofiltration membrane.

[0004] The above-mentioned device drives the eccentric wheel to rotate by driving the motor, so that the nanofiltration membrane vibrates left and right under the action of the adjusting spring, preventing impurities from adhering to the nanofiltration membrane and clogging the device. However, the above-mentioned device does not have a device for chemically separating the wastewater, resulting in the inability of the above-mentioned device to perform chemical separation when nanofiltering the wastewater, resulting in poor nanofiltration effect. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a wastewater nanofiltration device for removing organic solvents.

[0006] The utility model is achieved in this way: a wastewater nanofiltration and organic solvent removal device is constructed, which includes a sand filter component, a nanofiltration box component, a nanofiltration component, and a chemical separation component. The front end of the sand filter component is fixedly connected to the nanofiltration box component, the front end of the nanofiltration box component is slidably connected to the nanofiltration component, and the front end of the nanofiltration box component is fixedly connected to the chemical separation component. It is characterized in that it also includes a sand filter component, the sand filter component includes a sand filter box, a slide is provided in the sand filter box, a sand outlet valve pipe, the sand outlet valve pipe is fixedly connected to the lower end of the sand filter box, a display controller, the display controller is fixedly connected to the right side of the sand filter box, a wastewater inlet pipe, the wastewater inlet pipe is fixedly connected to the upper end of the sand filter box, an upper cover, the upper cover is rotatably connected to the upper end of the sand filter box, a sand filter net, and the sand filter net is slidably connected to the inside of the sand filter box.

[0007] Preferably, the nanofiltration box assembly includes a condensation water pipe, the upper end of the condensation water pipe is fixedly connected to the nanofiltration box, a booster water pump, the front end of the booster water pump is fixedly connected to the condensation water pipe, a nanofiltration box, the inside of the nanofiltration box is fixedly connected to the slide, the slide is fixedly connected to the first nanofiltration block, a filtration water pipe, the filtration water pipe is fixedly connected to the lower end of the nanofiltration box, and a rotating leak-proof block, the rotating leak-proof block is rotatably connected to the front end of the nanofiltration box.

[0008] Preferably, the nanofiltration component includes an opening and closing waterproof door, which is rotatably connected to the front end of the nanofiltration box, an observation window, which is fixedly connected to the opening and closing waterproof door, a first nanofiltration block, a rubber strip groove is provided at the front end of the first nanofiltration block, a second nanofiltration block, which is slidably connected to the nanofiltration box through a slide, a third nanofiltration block, which is also slidably connected to the nanofiltration box through a slide, and a waterproof rubber strip, which is fixedly connected to the rear end of the opening and closing waterproof door and is also slidably connected to the front ends of the first nanofiltration block, the second nanofiltration block and the third nanofiltration block.

[0009] Preferably, the chemical separation component includes a fusion box, the rear end of which is fixedly connected to the filter water pipe, a discharge pipe, which is fixedly connected to the front end of the fusion box, a separation filter membrane, which is fixedly connected to the upper end of the inside of the fusion box, an infusion agent tube, the front end of which is fixedly connected to the liquid guide frame, a liquid guide frame, which is fixedly connected to the inside of the fusion box, and a nozzle, which is fixedly connected to the front and rear ends of the liquid guide frame.

[0010] Preferably, a valve is fixedly connected to the sand outlet valve pipe.

[0011] Preferably, there are three groups of slides.

[0012] Preferably, there are three groups of waterproof rubber strips and they are all arranged at the rear end of the opening and closing waterproof door.

[0013] The utility model has the following advantages: The utility model provides a wastewater nanofiltration device for removing organic solvents through improvement, which has the following improvements compared with similar equipment:

[0014] The utility model discloses a wastewater nanofiltration device for removing organic solvents. By arranging a chemical separation component that can chemically separate wastewater, the device can perform chemical separation when nanofiltering wastewater, resulting in a better nanofiltration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the sand filter assembly of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the nanofiltration box assembly of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of the nanofiltration component of the present utility model;

[0019] Figure 5 It is a structural schematic diagram of the chemical separation component of the present utility model.

[0020] The equipment includes: sand filter assembly 1, sand filter box 11, sand outlet valve pipe 12, display controller 13, wastewater inlet pipe 14, upper cover 15, sand filter net 16, nanofiltration box assembly 2, condensation water pipe 21, booster pump 22, nanofiltration box 23, slide 24, filtration water pipe 25, rotating leak-proof block 26, nanofiltration assembly 3, opening and closing waterproof door 31, observation window 32, first nanofiltration block 33, second nanofiltration block 34, third nanofiltration block 35, waterproof rubber strip 36, chemical separation assembly 4, fusion box 41, discharge pipe 42, separation filter membrane 43, infusion agent tube 44, liquid guide frame 45, and nozzle 46. DETAILED DESCRIPTION

[0021] The following is combined with Figures 1 to 5 The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example 1

[0025] See also Figures 1 to 5 The utility model is a wastewater nanofiltration and organic solvent removal device, comprising a sand filter component 1, a nanofiltration box component 2, a nanofiltration component 3, and a chemical separation component 4. The front end of the sand filter component 1 is fixedly connected to the nanofiltration box component 2, the front end of the nanofiltration box component 2 is slidably connected to the nanofiltration component 3, and the front end of the nanofiltration box component 2 is fixedly connected to the chemical separation component 4. It is characterized in that it also includes a sand filter component 1, a chute is provided in the sand filter box 11, a sand outlet valve pipe 12 is fixedly connected to the lower end of the sand filter box 11, a display controller 13 is fixedly connected to the right side of the sand filter box 11, a wastewater inlet pipe 14 is fixedly connected to the upper end of the sand filter box 11, an upper cover 15 is rotatably connected to the upper end of the sand filter box 11, and a sand filter net 16 is slidably connected to the inside of the sand filter box 11;

[0026] Nanofiltration box assembly 2, the upper end of the condensation water pipe 21 is fixedly connected to the nanofiltration box 23, the front end of the booster water pump 22 is fixedly connected to the condensation water pipe 21, and after the booster water pump 22 is started, the water in the filter sand box 11 can be pumped out through the condensation water pipe 21 and transported to the nanofiltration box 23. The nanofiltration box 23 is fixedly connected to the slide 24, and the slide 24 is fixedly connected to the first nanofiltration block 33. The filtration water pipe 25 is fixedly connected to the lower end of the nanofiltration box 23, and the rotating leak-proof block 26 is rotatably connected to the front end of the nanofiltration box 23. There are three groups of slides 24 in total;

[0027] Nanofiltration component 3, the opening and closing waterproof door 31 is rotatably connected to the front end of the nanofiltration box 23, and the observation window 32 is fixedly connected to the opening and closing waterproof door 31. When the wastewater is transported to the nanofiltration box 23, it can pass through the first nanofiltration block 33, the second nanofiltration block 34 and the third nanofiltration block 35 to filter the organic solvent in the water. The front end of the first nanofiltration block 33 is provided with a rubber strip groove, the second nanofiltration block 34 is slidingly connected to the nanofiltration box 23 through the slide 24, and the third nanofiltration block 35 is also slidingly connected to the nanofiltration box 23 through the slide 24. The waterproof rubber strip 36 is fixedly connected to the rear end of the opening and closing waterproof door 31 and is also slidingly connected to the front end of the first nanofiltration block 33, the second nanofiltration block 34 and the third nanofiltration block 35. There are three groups of waterproof rubber strips 36 and they are all provided at the rear end of the opening and closing waterproof door 31.

[0028] The utility model provides a wastewater nanofiltration device for removing organic solvents through improvement, and its working principle is as follows:

[0029] When using this device, first place the device in the working area, then connect the device to an external power source to provide the required power for the device to work;

[0030] When the device is needed, the external wastewater can be pumped out through the wastewater inlet pipe 14 and transported to the filter sand box 11. When the wastewater enters the filter sand box 11, the heavier impurities in the wastewater can be precipitated and the wastewater can pass through the filter sand net 16 to filter the substances in the wastewater. Then, the display controller 13 controls the booster pump 22 to start and the wastewater containing less impurities can be pumped out from the upper end of the filter sand box 11 through the condensation water pipe 21 and transported to the nanofiltration box 23. When the wastewater is transported to the nanofiltration box 23, it can pass through the first nanofiltration block 33, the second nanofiltration block 34 and the third nanofiltration block. The block 35 filters the organic solvent in the water. When the filter screen of the device needs to be replaced, the upper cover 15 can be pulled and rotated to open so that the sand filter screen 16 can be taken out from the sand filter box 11 for replacement, and then the nanofiltration blocks in the nanofiltration box 23 can be observed through the observation window 32. When it is found that there are many impurities on the nanofiltration blocks, the rotating leak-proof block 26 can be rotated to separate the rotating leak-proof block 26 from the opening and closing waterproof door 31, and then the opening and closing waterproof door 31 can be pulled and rotated to open to take out the first nanofiltration block 33, the second nanofiltration block 34 and the third nanofiltration block 35 from the slide 24 for replacement.

[0031] Example 2

[0032] See also Figures 1 to 5The utility model is a wastewater nanofiltration and organic solvent removal device. Compared with the first embodiment, this embodiment also includes: a chemical separation component 4, a rear end of a fusion box 41 is fixedly connected to the filter water pipe 25, a discharge pipe 42 is fixedly connected to the front end of the fusion box 41, a separation filter membrane 43 is fixedly connected to the upper end of the inside of the fusion box 41, a front end of an infusion agent tube 44 is fixedly connected to a liquid guide frame 45, the infusion agent tube 44 is fixedly connected to an external infusion pump, the liquid guide frame 45 is fixedly connected to the inside of the fusion box 41, and a nozzle 46 is fixedly connected to the front and rear ends of the liquid guide frame 45.

[0033] In this embodiment:

[0034] When it is necessary to chemically separate the wastewater, the display controller 13 can be used to control the start of the external infusion pump when the wastewater enters the fusion box 41. After the external infusion pump is started, the external chemical flocculant can be input into the liquid guide frame 45 through the infusion tube 44 and sprayed out from the nozzle 46 to merge with the wastewater in the fusion box 41. When the chemical flocculant and the wastewater are merged, the organic matter can be condensed into larger particles and then precipitated. When the fused wastewater contacts the separation filter membrane 43, the separation filter membrane 43 can separate the organic solvent in the wastewater and then discharge it through the discharge pipe 42.

[0035] The utility model provides an improved wastewater nanofiltration device for removing organic solvents. By arranging a chemical separation component 4 that can chemically separate wastewater, the device can perform chemical separation when nanofiltering wastewater, resulting in a better nanofiltration effect.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0037] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wastewater nanofiltration device for removing organic solvents, comprising a sand filter component (1), a nanofiltration box component (2), a nanofiltration component (3), and a chemical separation component (4), wherein the front end of the sand filter component (1) is fixedly connected to the nanofiltration box component (2), the front end of the nanofiltration box component (2) is slidably connected to the nanofiltration component (3), and the front end of the nanofiltration box component (2) is fixedly connected to the chemical separation component (4), characterized in that: Also included is a sand filter assembly (1), the sand filter assembly (1) comprising: A sand filter box (11), wherein a chute is provided in the sand filter box (11); A sand outlet valve pipe (12), wherein the sand outlet valve pipe (12) is fixedly connected to the lower end of the sand filter box (11); A display controller (13), wherein the display controller (13) is fixedly connected to the right side of the sand filter box (11); a wastewater inlet pipe (14), wherein the wastewater inlet pipe (14) is fixedly connected to the upper end of the sand filter box (11); An upper cover (15), the upper cover (15) being rotatably connected to the upper end of the sand filter box (11); A sand filter net (16) is slidably connected to the sand filter box (11).

2. The wastewater nanofiltration device for removing organic solvents according to claim 1, characterized in that: The nanofiltration box assembly (2) comprises: A condensation water pipe (21), wherein the upper end of the condensation water pipe (21) is fixedly connected to the nanofiltration box (23); A booster water pump (22), wherein the front end of the booster water pump (22) is fixedly connected to the condensation water pipe (21); A nanofiltration box (23), wherein the nanofiltration box (23) is fixedly connected to the slide (24); A slide (24), wherein the slide (24) is fixedly connected to the first nanofiltration block (33); A filtering water delivery pipe (25), wherein the filtering water delivery pipe (25) is fixedly connected to the lower end of the nanofiltration box (23); A rotating leak-proof block (26) is rotatably connected to the front end of the nanofiltration box (23).

3. The wastewater nanofiltration device for removing organic solvents according to claim 1, characterized in that: The nanofiltration component (3) comprises: An opening and closing waterproof door (31), wherein the opening and closing waterproof door (31) is rotatably connected to the front end of the nanofiltration box (23); An observation window (32), wherein the observation window (32) is fixedly connected to the opening and closing waterproof door (31); A first nanofiltration block (33), wherein a rubber strip groove is provided at the front end of the first nanofiltration block (33); a second nanofiltration block (34), the second nanofiltration block (34) being slidably connected to the nanofiltration box (23) via a slide (24); a third nanofiltration block (35), the third nanofiltration block (35) also being slidably connected to the nanofiltration box (23) via the slide (24); A waterproof rubber strip (36) is fixedly connected to the rear end of the opening and closing waterproof door (31) and is also slidably connected to the front ends of the first nanofiltration block (33), the second nanofiltration block (34), and the third nanofiltration block (35).

4. The wastewater nanofiltration device for removing organic solvents according to claim 1, characterized in that: The chemical separation component (4) comprises: A fusion box (41), the rear end of the fusion box (41) is fixedly connected to the filtered water pipe (25); A discharge pipe (42), wherein the discharge pipe (42) is fixedly connected to the front end of the fusion box (41); A separation filter membrane (43), wherein the separation filter membrane (43) is fixedly connected to the upper end of the interior of the fusion box (41); an infusion agent tube (44), wherein the front end of the infusion agent tube (44) is fixedly connected to the liquid guide frame (45); a liquid guide frame (45), wherein the liquid guide frame (45) is fixedly connected to the fusion box (41); A nozzle (46) is fixedly connected to the front and rear ends of the liquid guide frame (45).

5. The wastewater nanofiltration device for removing organic solvents according to claim 1, characterized in that: A valve is fixedly connected to the sand outlet valve pipe (12).

6. The wastewater nanofiltration device for removing organic solvents according to claim 2, characterized in that: The slides (24) are provided with three groups in total.

7. The wastewater nanofiltration device for removing organic solvents according to claim 3, characterized in that: The waterproof rubber strips (36) are provided in three groups and are all provided at the rear end of the opening and closing waterproof door (31).

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