Nanofiltration salt separation device for high-salt-content industrial wastewater

Abstract

The utility model discloses a high salt content industrial wastewater nanofiltration salt separation device which comprises a water storage bin and a nanofiltration module arranged in the water storage bin, the nanofiltration module is detachably arranged in the water storage bin, a bin plate is arranged at the bottom of the water storage bin, and the bin plate is detachably connected with the water storage bin; the nanofiltration module comprises a flow guide base, a top fixing seat and a plurality of nanofiltration membranes arranged between the flow guide base and the top fixing seat, the nanofiltration membranes are arranged in the circumferential direction, and the nanofiltration membranes are detachably connected with the flow guide base and the top fixing seat. When the bin plate is opened, the whole nanofiltration module can be put into the water storage bin, so that the nanofiltration module is convenient to mount and replace. A drain outlet is formed in the bin plate, and the separated high-salinity concentrated wastewater passes through the drain outlet. According to the scheme, the plurality of nanofiltration membranes are arranged in the circumferential direction, and each nanofiltration membrane can independently realize a filtering function, so that the filtering efficiency can be improved, and the space utilization rate is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and more specifically to a nanofiltration salt separation device for high-salt industrial wastewater. Background Art

[0002] Nanofiltration technology is an effective treatment method for high-salinity industrial wastewater, primarily used to remove dissolved salts and other impurities. The separation principle is that nanofiltration membranes selectively separate solutes and solvents through a physical barrier, utilizing the membrane's pore size. Compared to reverse osmosis, nanofiltration membranes have larger pores, allowing some small molecules to pass through while blocking larger molecules or salt ions. This technology is widely used in wastewater treatment in industries such as food processing, chemical processing, and pharmaceuticals, enabling water recovery and reducing environmental pollution.

[0003] Existing nanofiltration salt separation devices are difficult to modularize and are inconvenient to assemble and disassemble. They mostly use a single nanofiltration membrane, resulting in poor separation effect and inability to fully utilize space. Utility Model Content

[0004] The purpose of the utility model is to provide a nanofiltration salt separation device for high-salt industrial wastewater to solve the technical problems existing in the above-mentioned background technology.

[0005] The utility model provides a nanofiltration salt separation device for high-salt industrial wastewater, comprising a water storage tank and a nanofiltration module arranged in the water storage tank, wherein the nanofiltration module is detachably arranged in the water storage tank, and a tank plate is provided at the bottom of the water storage tank, and the tank plate is detachably connected to the water storage tank;

[0006] The nanofiltration module includes a guide base, a top fixing seat and a nanofiltration membrane arranged between the guide base and the top fixing seat. Several nanofiltration membranes are provided and arranged in a circumferential direction. The nanofiltration membrane is detachably connected to the guide base and the top fixing seat.

[0007] In a preferred embodiment, the interior of the diversion base is a diversion cavity, the top of the diversion base is provided with an insertion port, the bottom is provided with a purified water outlet, and the bottom of the nanofiltration membrane is inserted into the insertion port.

[0008] In a preferred embodiment, a sealing ring is provided in the plug interface.

[0009] In a preferred embodiment, the lower portion of the guide cavity is configured to be conical.

[0010] In a preferred embodiment, the top fixing seat includes a top plate, a limiting groove located below the top plate and a limiting spring arranged in the limiting groove, one end of the limiting spring extends out of the limiting groove, and the top of the filter membrane is inserted into the limiting groove.

[0011] In a preferred embodiment, the top plate and the guide base are connected via a connecting rod, and both ends of the connecting rod are respectively bolted to the top plate and the guide base.

[0012] In a preferred embodiment, limit blocks are provided on both sides of the top plate, and limit slide rails are provided in the water storage bin, and the limit blocks are slidably connected to the limit slide rails.

[0013] The beneficial effects of the technical solution of this utility model are:

[0014] The silo panel opens to allow the entire nanofiltration module to be placed inside the water storage bin, facilitating its installation and replacement. A drain port is provided on the silo panel for the passage of separated, high-salinity concentrated wastewater. This solution utilizes multiple circumferentially arranged nanofiltration membranes, each capable of independent filtration, increasing filtration efficiency and optimizing space utilization. The nanofiltration membranes are detachably connected to the flow guide base and top mounting bracket for easy installation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a cross-sectional view of the utility model.

[0017] Figure 3 This is the overall schematic diagram of the nanofiltration membrane group of the utility model.

[0018] Figure 4 This is a disassembled diagram of the nanofiltration module structure of the present invention.

[0019] Explanation of the accompanying drawings: 1 water storage tank, 2 nanofiltration module, 3 diversion base, 4 diversion cavity, 5 plug interface, 6 sealing ring, 7 top fixing seat, 8 top plate, 9 limit groove, 10 limit spring, 11 nanofiltration membrane, 12 connecting rod, 13 tank plate, 14 limit block, 15 limit slide rail, 16 clean water outlet, 17 sewage outlet, 18 water inlet. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and convenience of description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Numerous modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0021] like Figure 1-4As shown, the technical solution of the present invention provides a nanofiltration salt separation device for high-salt industrial wastewater, including a water storage tank 1 and a nanofiltration module 2 disposed in the water storage tank 1. The nanofiltration module 2 is detachably disposed in the water storage tank 1. A storage plate 13 is provided at the bottom of the water storage tank 1, and the storage plate 13 is detachably connected to the water storage tank 1. The storage plate 13 can be opened to place the nanofiltration module 2 as a whole into the water storage tank 1, facilitating the installation and replacement of the nanofiltration module 2. The storage plate 13 is provided with a water inlet 18 and a sewage outlet 17, through which the separated high-salt concentrated wastewater passes.

[0022] The nanofiltration module 2 includes a guide base 3, a top fixing seat 7, and a nanofiltration membrane 11 arranged between the guide base 3 and the top fixing seat 7. The nanofiltration membrane 11 is provided in a plurality and arranged in a circumferential direction. The nanofiltration membrane 11 is detachably connected to the guide base 3 and the top fixing seat 7. The nanofiltration membrane 11 can filter pollutants. High-salt pollutants are isolated outside the nanofiltration membrane 11 and discharged through the sewage outlet 17 along with the water flow. The clean water passes through the nanofiltration membrane 11 and flows out of the guide base 3, thereby completing the filtration work. In this solution, by using multiple nanofiltration membranes 11 arranged circumferentially, each nanofiltration membrane 11 can independently realize the filtration function, which can increase the filtration efficiency and achieve space utilization.

[0023] The interior of the diversion base 3 is a diversion cavity 4. The top of the diversion base 3 is provided with a plug-in port 5, and the bottom is provided with a clean water outlet 16. The bottom of the nanofiltration membrane 11 is inserted into the plug-in port 5. The filtered clean water enters the diversion cavity 4 and is then discharged through the clean water outlet 16. A sealing ring 6 is provided in the plug-in port 5 to ensure that the nanofiltration membrane 11 is sealed and connected to the diversion base 3 to prevent sewage from entering the diversion cavity 4. The lower part of the diversion cavity is set to be conical, and the cone center is set to avoid blocking the bottom of the water storage tank 1, ensuring that the sewage is smoothly discharged from the sewage outlet 17. At the same time, the conical structure also has a diversion effect.

[0024] The top fixing seat 7 includes a top plate 8, a limiting groove 9 located below the top plate 8, and a limiting spring 10 disposed within the limiting groove 9. One end of the limiting spring 10 extends out of the limiting groove 9, and the top of the filter membrane is inserted into the limiting groove 9. The top of the nanofiltration membrane 11 extends into the limiting groove 9, and the elastic force of the limiting spring 10 acts on the top of the nanofiltration membrane 11 to secure the nanofiltration membrane 11. When disassembling, the bottom of the nanofiltration membrane 11 can be separated from the guide base 3 by simply pulling upward, which facilitates the installation and replacement of the nanofiltration membrane 11.

[0025] The top plate 8 is connected to the guide base 3 via a connecting rod 12 , and both ends of the connecting rod 12 are bolted to the top plate 8 and the guide base 3 respectively.

[0026] Limit blocks 14 are provided on both sides of the top plate 8, and limit rails 15 are provided in the water storage tank 1. The limit blocks 14 are slidably connected to the limit rails 15. The limit blocks 14 cooperate with the limit rails 15 to position the nanofiltration module 2, making it easier to put in and take out the nanofiltration module 2.

[0027] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A nanofiltration salt separation device for high-salt industrial wastewater, characterized by: It includes a water storage tank and a nanofiltration module arranged in the water storage tank, wherein the nanofiltration module is detachably arranged in the water storage tank, and a tank plate is provided at the bottom of the water storage tank, and the tank plate is detachably connected to the water storage tank; The nanofiltration module includes a guide base, a top fixing seat and a nanofiltration membrane arranged between the guide base and the top fixing seat. Several nanofiltration membranes are provided and arranged in a circumferential direction. The nanofiltration membrane is detachably connected to the guide base and the top fixing seat.

2. The high-salt industrial wastewater nanofiltration salt separation device according to claim 1, characterized in that: The interior of the diversion base is a diversion cavity, the top of the diversion base is provided with an insertion port, the bottom is provided with a purified water outlet, and the bottom of the nanofiltration membrane is inserted into the insertion port.

3. The high-salt industrial wastewater nanofiltration salt separation device according to claim 2, characterized in that: A sealing ring is provided in the plug-in port.

4. The high-salt industrial wastewater nanofiltration salt separation device according to claim 2, characterized in that: The lower portion of the guide cavity is configured to be conical.

5. The high-salt industrial wastewater nanofiltration salt separation device according to claim 2, characterized in that: The top fixing seat includes a top plate, a limiting groove located below the top plate and a limiting spring arranged in the limiting groove, one end of the limiting spring extends out of the limiting groove, and the top of the filter membrane is inserted into the limiting groove.

6. The high-salt industrial wastewater nanofiltration salt separation device according to claim 5, characterized in that: The top plate and the guide base are connected via a connecting rod, and both ends of the connecting rod are respectively connected with the top plate and the guide base by bolts.

7. The high-salt industrial wastewater nanofiltration salt separation device according to claim 5, characterized in that: Limiting blocks are arranged on both sides of the top plate, and limiting slide rails are arranged in the water storage bin, and the limiting blocks are slidably connected to the limiting slide rails.

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