A multi-stage concentration device for nanofiltration pilot plant

Abstract

The utility model provides a kind of nanofiltration pilot plant multistage concentration device belongs to nanofiltration filtration technical field, including bottom plate, side plate, filter mechanism etc..Filter mechanism contains concentrator, and it is connected product supply pipe, product discharge duct, blow-off duct respectively through product import pipe, product discharge pipe, blow-off pipe. Device can be realized multistage concentration by multiple filter mechanism series connection, or parallel to adapt to different flow, solved the problem that traditional equipment is difficult to take into account different product quantity and concentration demand, with flexible, stable, convenient, controllable characteristics, applicable to the pilot concentration of various products.

Description

Technical Field

[0001] This utility model relates to the field of nanofiltration technology, specifically to a multi-stage concentration device for nanofiltration pilot-scale equipment. Background Technology

[0002] Nanofiltration is a pressure-driven membrane separation process that lies between reverse osmosis and ultrafiltration. Its membrane pore size ranges from a few nanometers. It has developed rapidly, and nanofiltration membranes are mostly derived from reverse osmosis membranes (such as CA, CTA membranes, and aromatic polyamide composite membranes).

[0003] Existing nanofiltration concentration equipment has limitations in practical use: it is difficult to filter quickly when dealing with large-scale concentrations due to varying product volumes; and it cannot perform multi-stage filtration according to the required cleanliness, affecting the actual application effect. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a multi-stage concentration device for nanofiltration pilot plant.

[0005] The specific technical solution is as follows:

[0006] A multi-stage concentration device for nanofiltration pilot plant includes a base plate, a side plate fixedly installed on the rear side of the top of the base plate, a product supply pipe provided on the rear side of the side plate, a filtration mechanism provided on the front side of the side plate, a drain pipe provided on the top of the base plate and below the filtration mechanism, and a product discharge pipe provided on the top of the base plate and in front of the filtration mechanism. The front side of the product supply pipe is connected to evenly distributed second valves, and the front side of the second valves is connected to a first connector. The first connector penetrates the side plate and extends to the front side of the side plate. The rear side of the drain pipe is connected to evenly distributed fourth connectors, and the rear side of the fourth connectors is threadedly connected to a fourth connector. The end of the fourth connector is fixedly installed with a third connector.

[0007] The filtration mechanism includes a uniformly distributed concentrator located on the front side of the side plate. The top of the concentrator is connected to a product inlet pipe, the bottom of the concentrator is connected to a drain pipe, the front of the concentrator is connected to a product outlet pipe, and a limiting ring is fitted on the outer side of the concentrator.

[0008] As a preferred embodiment of this utility model, a limiting guide groove is provided inside the side plate, and a slider is slidably connected inside the limiting guide groove, with the front side of the slider being fixedly connected to the rear side of the limiting ring.

[0009] As a preferred embodiment of this utility model, the internal thread of the limiting ring is connected to a bolt, and the rear side of the bolt contacts the front side of the concentrator.

[0010] In a preferred embodiment of this utility model, the bottom of the drain pipe extends through the interior of the third connector, the front side of the product discharge pipe is threadedly connected to the product discharge conduit, and the bottom of the first connector is threadedly connected to the top of the product inlet pipe.

[0011] As a preferred embodiment of this utility model, a third valve is fixedly installed inside the fourth connector, and a first valve is evenly distributed on the rear side of the product discharge conduit, with the rear side of the first valve connected to the front side of the second connector.

[0012] As a preferred embodiment of this utility model, an installation plate is sleeved on the outer side of the fourth connector and below the third connector. The two sides of the installation plate are rotatably connected to adjusting screws via bearings. The bottom of the adjusting screws penetrates into the interior of the base plate and is connected to the base plate via threads.

[0013] As a preferred embodiment of this utility model, a pressure pump is fixedly installed inside the product supply pipe.

[0014] This utility model has the following beneficial effects:

[0015] 1. Multi-stage concentration capability: Through the design of multiple devices connected in series, multi-stage concentration of products can be achieved, improving product cleanliness and solving the problem that existing equipment cannot perform multi-stage filtration according to cleanliness requirements.

[0016] 2. Multi-flow adaptability: Through the parallel design of multiple filtration mechanisms, it can adapt to the product concentration needs under different flow rates, solving the problem of difficulty in rapid filtration during large-scale concentration.

[0017] 3. Improved stability: The limiting guide groove and slider work together with the limiting ring and bolt fixing to enhance the installation stability of the concentrator and ensure structural reliability during operation.

[0018] 4. Ease of installation and maintenance: The adjusting screw drives the third connector to rise and fall, facilitating the sealing connection between the sewage pipe and the third connector; all pipes are connected by threads, making disassembly and assembly convenient and easy to maintain.

[0019] 5. Improved filtration efficiency: The pressure pump pressurizes the product, accelerating the filtration process in the concentrator and improving overall processing efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the multi-stage concentration device for nanofiltration pilot plant provided in this embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the base plate structure of the multi-stage concentration device in the nanofiltration pilot plant provided in this embodiment of the utility model;

[0022] Figure 3 A rear view structural diagram of the base plate of the multi-stage concentration device in a nanofiltration pilot plant provided in this embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the filtration mechanism structure of the multi-stage concentration device in the nanofiltration pilot plant provided in this embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the extrusion connection mechanism of the multi-stage concentration device in the nanofiltration pilot plant provided in this embodiment of the utility model;

[0025] Figure 6 A schematic diagram of the drain pipe structure of the multi-stage concentration device in the nanofiltration pilot plant provided in this embodiment of the utility model.

[0026] In the attached diagram: 1. Base plate; 2. Side plate; 3. Filter mechanism; 301. Limiting guide groove; 302. Limiting ring; 303. Bolt; 304. Product discharge pipe; 305. Concentrator; 306. Sewage pipe; 307. Product inlet pipe; 4. Product supply pipe; 5. Pressure pump; 6. First connector; 7. First valve; 8. Second connector; 9. Product discharge conduit; 10. Sewage conduit; 11. Second valve; 12. Third connector; 13. Mounting plate; 14. Fourth connector; 15. Adjusting screw; 16. Fourth joint; 17. Third valve. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0029] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example

[0032] The nanofiltration pilot plant multi-stage concentration device provided in this embodiment, such as... Figures 1-6 As shown, the system includes a base plate 1, a side plate 2 fixedly mounted on the rear side of the top of the base plate 1, a product supply pipe 4 disposed on the rear side of the side plate 2, a filter mechanism 3 disposed on the front side of the side plate 2, a drain pipe 10 disposed on the top of the base plate 1 and below the filter mechanism 3, and a product discharge pipe 9 disposed on the top of the base plate 1 and in front of the filter mechanism 3. The front side of the product supply pipe 4 is connected to evenly distributed second valves 11, and the front side of the second valves 11 is connected to a first connector 6. The first connector 6 penetrates the side plate 2 and extends to the front side of the side plate 2. The drain pipe... The rear side of 10 is connected to a uniformly distributed fourth connector 16. The rear side of the fourth connector 16 is threaded with a fourth connector 14. The end of the fourth connector 14 is fixedly installed with a third connector 12. The base plate 1 is used to install the side plate 2. The side plate 2 is used to install the filter mechanism 3. The filter mechanism 3 is used to concentrate the product. Multiple units are connected in series to achieve multi-stage concentration of the product. At the same time, multiple filter mechanisms 3 are connected in parallel according to purification needs to achieve product concentration at different flow rates.

[0033] The filtration mechanism 3 includes a concentrator 305 evenly distributed on the front side of the side plate 2. The top of the concentrator 305 is connected to a product inlet pipe 307, the bottom of the concentrator 305 is connected to a drain pipe 306, the front of the concentrator 305 is connected to a product outlet pipe 304, and a limiting ring 302 is fitted on the outside of the concentrator 305. The concentrator 305 is used to concentrate and filter the product. The product inlet pipe 307 is used to introduce the product to be concentrated into the interior of the concentrator 305. The drain pipe 306 is used to discharge the pollutants generated during the concentration process. The product outlet pipe 304 is used to discharge the concentrated product.

[0034] The side plate 2 has a limiting guide groove 301 inside, and a slider is slidably connected inside the limiting guide groove 301. The front side of the slider is fixedly connected to the rear side of the limiting ring 302. The limiting guide groove 301 and the slider are used to fix the limiting ring 302. The limiting ring 302 is used to limit the concentrator 305 and increase the stability of the concentrator 305 during use.

[0035] The internal thread of the limiting ring 302 is connected to a bolt 303. The rear side of the bolt 303 contacts the front side of the concentrator 305. The bolt 303 is used to fix the concentrator 305.

[0036] The bottom of the drain pipe 306 extends into the interior of the third connector 12. The front side of the product discharge pipe 304 is threadedly connected to the product discharge conduit 9. The bottom of the first connector 6 is threadedly connected to the top of the product inlet pipe 307. The third connector 12 is used to connect the drain pipe 306 to the fourth connector 14, and then the waste liquid generated during the concentration process is discharged through the drain conduit 10 via the fourth connector 14. The product discharge pipe 304 and the product discharge conduit 9 are used to discharge the concentrated product. At the same time, the product discharge conduit 9 can be connected to the product supply pipe 4 of another device to realize multi-stage concentration of the product.

[0037] The fourth connector 16 is internally fixedly equipped with a third valve 17. The rear side of the product discharge conduit 9 is connected to a uniformly distributed first valve 7. The rear side of the first valve 7 is connected to the front side of the second connector 8. The third valve 17 is used to seal the fourth connector 16.

[0038] A mounting plate 13 is fitted onto the outer side of the fourth connector 14 and below the third connector 12. Adjusting screws 15 are rotatably connected to both sides of the mounting plate 13 via bearings. The bottom of the adjusting screws 15 penetrates into the interior of the base plate 1 and is threadedly connected to the base plate 1. The mounting plate 13 is used to achieve… The fourth connector 14 is installed and fixed. The adjusting screw 15 is used to drive the fourth connector 14 and the third connector 12 to rise, thereby realizing the connection between the third connector 12 and the sewage pipe 306. The sewage pipe 10 is a flexible hose, so that the fourth connector 14 can move up and down with the mounting plate 13.

[0039] A pressure pump 5 is fixedly installed inside the product supply pipe 4. The pressure pump 5 is used to pressurize the product entering the filter mechanism 3 to accelerate the filtration of the product by the concentrator 305.

[0040] In the multi-stage concentration unit of this nanofiltration pilot plant, the concentrator 305 can be selected from various compatible models to meet different application requirements. For example, the RNF-2500 spiral wound membrane concentrator can be used, whose nanofiltration membrane has a molecular weight cutoff of 100-1000 Da, exhibiting excellent performance in concentration and purification processes and enabling efficient product concentration. Alternatively, the concentration unit of the CDM-FC40Z pilot-scale multifunctional membrane separation system can be selected as the concentrator 305, which can achieve integrated filtration, purification, and concentration. The purification and concentration section has a processing capacity of 30-50 L / h and a separation accuracy range of 50 Da-1000 Da. It can effectively complete the concentration task for various products such as plant extracts, traditional Chinese medicine extracts, fermentation broths, protein hydrolysates, and food and beverages, significantly improving the purity and concentration of the products. In addition, for smaller processing volumes, the CD-NS18D-1X model concentrator 305 can be considered. With a processing capacity of 2–10 L / h, it performs well in low-flow product processing scenarios. This series of equipment also covers various filtration levels, including nanofiltration, effectively achieving product concentration. In practical applications, the most suitable concentrator 305 model can be flexibly and precisely selected based on factors such as product characteristics, processing volume requirements, and desired concentration effect.

[0041] In summary, this nanofiltration pilot plant's multi-stage concentration unit achieves product concentration and purification through the synergistic effect of its various components. The specific principle is as follows:

[0042] 1. Product supply and transmission: The product to be processed enters the device through the product supply pipe 4. The pressure pump 5 in the product supply pipe 4 pressurizes the product to accelerate the filtration efficiency. After the flow rate of the product is controlled by the second valve 11, it enters the product inlet pipe 307 of the filter mechanism 3 through the first connector 6.

[0043] 2. Concentration and filtration: The product enters the concentrator 305 through the product inlet pipe 307. The concentrator 305 concentrates and purifies the product through an internal nanofiltration membrane. The dirt generated during the purification process is discharged through the drain pipe 306 at the bottom of the concentrator 305.

[0044] 3. Product and waste discharge: The concentrated product flows through the product discharge pipe 304 at the front of the concentrator 305, and after being controlled by the second connector 8 and the first valve 7, it flows into the product discharge conduit 9; the waste enters the third connector 12 through the drain pipe 306, and then passes through the fourth connector 14 and the third valve 17 inside the fourth connector 16 to control the flow rate, and is finally discharged through the drain conduit 10.

[0045] 4. Multi-stage and multi-flow adaptation: By connecting multiple devices in series (the product discharge pipe 9 of the previous device is connected to the product supply pipe 4 of the next device), multi-stage product concentration can be achieved; by connecting multiple filtration mechanisms 3 in parallel, product concentration needs under different flow rates can be adapted.

[0046] How to use

[0047] 1. Device connection: According to the processing requirements, multiple devices are connected in series (the product discharge pipe 9 of adjacent devices is connected to the product supply pipe 4) to achieve multi-stage concentration; at the same time, external pipes are connected to the product supply pipe 4 to input the product to be processed, the product discharge pipe 9 (outputting the concentrated product), and the sewage discharge pipe 10 (outputting sewage) respectively.

[0048] 2. Filter mechanism installation: Fit the required number of concentrators 305 into the limiting rings 302, so that the slider on the back side of the limiting rings 302 slides into the limiting guide grooves 301 of the side plate 2, and fix the concentrators 305 to the limiting rings 302 with bolts 303 to ensure the stability of the concentrators 305.

[0049] 3. Pipe connection: Thread the product inlet pipe 307 of the concentrator 305 to the first connector 6, and thread the product outlet pipe 304 to the second connector 8; rotate the adjusting screw 15 to drive the mounting plate 13 to rise, so that the third connector 12 contacts and seals the bottom of the drain pipe 306 (the drain pipe 10 is a flexible hose, which is adapted to lifting and moving).

[0050] 4. Start-up: Turn on the pressurizing pump 5. The product to be processed enters the concentrator 305 after being pressurized for concentration. Adjust the flow rate of each pipeline through the first valve 7, the second valve 11, and the third valve 17. After multi-stage treatment, the concentrated product is output through the product discharge pipe 9, and the waste is discharged through the sewage discharge pipe 10.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage concentration device for nanofiltration pilot plant, characterized in that, Includes a base plate (1), a side plate (2) is fixedly installed on the rear side of the top of the base plate (1), a product supply pipe (4) is provided on the rear side of the side plate (2), a filter mechanism (3) is provided on the front side of the side plate (2), a sewage discharge pipe (10) is provided on the top of the base plate (1) and below the filter mechanism (3), a product discharge pipe (9) is provided on the top of the base plate (1) and in front of the filter mechanism (3), a uniformly distributed second valve (11) is connected to the front side of the product supply pipe (4), a first connector (6) is connected to the front side of the second valve (11), the first connector (6) penetrates the side plate (2) and extends to the front side of the side plate (2), a uniformly distributed fourth connector (16) is connected to the rear side of the sewage discharge pipe (10), a fourth connector (14) is threaded to the rear side of the fourth connector (16), and a third connector (12) is fixedly installed at the end of the fourth connector (14). The filtration mechanism (3) includes a uniformly distributed concentrator (305) disposed on the front side of the side plate (2). The top of the concentrator (305) is connected to a product inlet pipe (307), the bottom of the concentrator (305) is connected to a drain pipe (306), the front side of the concentrator (305) is connected to a product outlet pipe (304), and a limiting ring (302) is sleeved on the outside of the concentrator (305).

2. The multi-stage concentration device for nanofiltration pilot plant according to claim 1, characterized in that, The side plate (2) has a limiting guide groove (301) inside, and a slider is slidably connected inside the limiting guide groove (301), and the front side of the slider is fixedly connected to the rear side of the limiting ring (302).

3. The multi-stage concentration device for nanofiltration pilot plant according to claim 1, characterized in that, The limiting ring (302) is internally threaded with a bolt (303), the rear side of which contacts the front side of the concentrator (305).

4. The multi-stage concentration device for nanofiltration pilot plant according to claim 1, characterized in that, The bottom of the drain pipe (306) extends into the interior of the third connector (12), the front side of the product discharge pipe (304) is threadedly connected to the product discharge conduit (9), and the bottom of the first connector (6) is threadedly connected to the top of the product inlet pipe (307).

5. The multi-stage concentration device for nanofiltration pilot plant according to claim 1, characterized in that, The fourth connector (16) is internally fixedly equipped with a third valve (17), and the rear side of the product discharge conduit (9) is connected to a uniformly distributed first valve (7), and the rear side of the first valve (7) is connected to the front side of the second connector (8).

6. The multi-stage concentration device for nanofiltration pilot plant according to claim 1, characterized in that, An installation plate (13) is fitted on the outside of the fourth connector (14) and below the third connector (12). An adjusting screw (15) is rotatably connected to both sides of the installation plate (13) via bearings. The bottom of the adjusting screw (15) extends through the interior of the base plate (1) and is threadedly connected to the base plate (1).

7. The multi-stage concentration device for nanofiltration pilot plant according to any one of claims 1-6, characterized in that, A pressure pump (5) is fixedly installed inside the product supply pipe (4).

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