Organic centrifugal membrane module and centrifugal filtration device

Abstract

The utility model relates to centrifugal membrane technical field, concretely relates to a kind of organic centrifugal membrane assembly and centrifugal filter device.The organic centrifugal membrane assembly of the application, by being equipped with the through-hole for rotating shaft to pass through on organic membrane, the organic membrane includes first organic membrane, second organic membrane, flow guide net is installed between the first organic membrane, second organic membrane, the first organic membrane, second organic membrane outside tightly connected with plastic sleeve, the first organic membrane, second organic membrane are fixed on rotating shaft by the plastic sleeve, so that the organic centrifugal membrane assembly installation requirement is low, easy to install operation;And because the membrane sheet quality is light, easy to process, size can be selected according to actual, so that the equipment membrane area can be promoted, increase filtration volume, to reduce the investment cost of equipment.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal membrane technology, specifically to an organic centrifugal membrane assembly and a centrifugal filtration device. Background Technology

[0002] Traditional tubular ceramic membranes are widely used in chemical, biopharmaceutical, and environmental water treatment industries. Tubular ceramic membranes require high surface flow velocities to flush away contaminant deposits, reduce fouling, and maintain stable flux. Therefore, the pumps in tubular ceramic membrane systems consume a lot of energy. The large size of tubular ceramic membranes results in a significant dead volume of material remaining in the pipes, preventing the material from achieving a high concentration ratio. In processes requiring elution, large amounts of eluent must be added, increasing the burden on subsequent processes. The high flow rate also leads to increased shear forces within the pump and pipes, which can adversely affect sensitive products, such as active proteins.

[0003] Centrifugal membrane filtration technology is a novel membrane filtration technology that effectively combines the principles of centrifuges and cross-flow filtration. It boasts nanometer-level filtration precision while ensuring stable operation and excellent energy efficiency. The system does not rely on a feed pump to provide high circulation flow and operating pressure; instead, its internal rotation aids in the separation and filtration of the feed liquid. Negative pressure suction on the product water side effectively increases the membrane's operating flux. Utilizing the centrifugal force, hydraulic shear force, and turbulence generated by the rotational motion, it efficiently removes the filter layer from the membrane surface, eliminating extreme concentration differences and reducing fouling such as salt crystallization, scaling, gel layers, and organic matter. This significantly extends the chemical cleaning cycle of the filter membrane, and the system does not require high flow rates or high pressures, greatly saving energy. Furthermore, the rotating cross-flow design allows for higher output, more efficient filtration, more concentrated filtrate, and lower energy consumption. Because it eliminates the need for high-speed rinsing, the shear force exerted on the material by the pump and pipeline is significantly reduced, enabling excellent material recovery even when used for filtering sensitive materials. The dynamic cross-flow filtration centrifugal membrane unit has a small footprint, small dead volume, and high concentration ratio, greatly reducing the amount of washing water required in processes that require elution. Simultaneously, the centrifugal membrane operates at low pressure, exhibits minimal membrane fouling, and its flux is easily restored through cleaning.

[0004] However, the centrifugal membrane filtration technology currently uses inorganic materials such as aluminum oxide or silicon carbide for the centrifugal membranes. The membranes are expensive to produce, fragile, and heavy. They also require high load-bearing capacity, high processing precision, high installation requirements, and high maintenance costs. Furthermore, the membranes available for different separation accuracies are limited.

[0005] In view of this, this application provides an organic centrifugal membrane assembly and a centrifugal filtration device that are lightweight, easy to process and install. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an organic centrifugal membrane assembly and a centrifugal filtration device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an organic centrifugal membrane assembly, comprising an organic membrane sheet, wherein the organic membrane sheet has a through hole for a rotating shaft to pass through, the organic membrane sheet comprising a first organic membrane sheet and a second organic membrane sheet, wherein a flow guide net is installed between the first organic membrane sheet and the second organic membrane sheet, and a plastic sleeve is tightly connected to the outside of the first organic membrane sheet and the second organic membrane sheet, thereby fixing the first organic membrane sheet and the second organic membrane sheet to the rotating shaft through the plastic sleeve.

[0008] Furthermore, the organic membrane is disc-shaped.

[0009] Furthermore, the organic membrane has a thickness of 4-8 mm and an outer diameter of 150-400 mm.

[0010] Furthermore, the flow guide net is welded and sealed to the edges of the first organic membrane and the second organic membrane.

[0011] Furthermore, the rotating shaft is hollow.

[0012] A centrifugal filtration device includes a housing, in which a bearing for mounting the aforementioned organic centrifugal membrane assembly is provided. A centrifugal motor connected to a rotating shaft is mounted at the bottom of the housing. One end of the centrifugal motor is connected to a filtrate storage tank. An air source tank and a material tank are connected to the filtrate storage tank, and the material tank is connected to the bottom of the housing.

[0013] Furthermore, a circular threaded hole is provided at the bottom of the centrifugal motor, which serves as the filtrate outlet and is connected to the filtrate storage tank.

[0014] Furthermore, a circulation pump is installed on the pipe between the bottom of the material tank and the shell; a reflux valve and a pressure gauge are installed on the pipe between the top of the shell and the material tank.

[0015] Furthermore, a backwash valve is installed on the pipeline between the filtrate storage tank and the gas source tank; a gas supply valve is provided between the pipeline between the gas source tank and the circulation pump.

[0016] Furthermore, the shell is cylindrical.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This application provides an organic centrifugal membrane assembly by creating a through hole in an organic membrane sheet for a rotating shaft to pass through. The organic membrane sheet includes a first organic membrane sheet and a second organic membrane sheet. A flow guide net is installed between the first and second organic membrane sheets. A plastic sleeve is tightly connected to the outside of the first and second organic membrane sheets, and the plastic sleeve fixes the first and second organic membrane sheets to the rotating shaft. This reduces the installation requirements of the organic centrifugal membrane assembly and facilitates installation and operation. Furthermore, because the membrane sheet is lightweight and easy to process, its size can be selected according to actual needs, thereby increasing the membrane area of ​​the equipment, increasing the filtration capacity, and thus reducing the investment cost of the equipment.

[0018] 2. The organic membrane sheet of this application is small in size and easy to process, allowing for a wide range of selectable filtration precisions, covering the entire precision range from reverse osmosis, nanofiltration, ultrafiltration, and microfiltration. The selectable filtration precisions include 50Da, 100Da, 200Da, 300Da, 500Da, 700Da, 800Da, 1KD, 2KD, 3KD, 4KD, 5KD, 8KD, 10KD, 20KD, 30KD, 50KD, 100KD, 200KD, 300D, 500D, 1000D, 4nm, 5nm, 10nm, 20nm, 50nm, 100nm, 200nm, 500nm, 800nm, 1um, 1.2um, 1.4um, 2um, 5um, and 10um, etc., which have a wide range of application scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the organic centrifugal membrane assembly in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the centrifugal filtration device in a preferred embodiment of the present invention.

[0020] Attached reference numerals: 1. Gas source tank; 2. Gas supply valve; 3. Backflush valve; 4. Pressure gauge; 5. Return valve; 6. Clear liquid storage tank; 7. Organic centrifuge membrane assembly; 8. Centrifuge motor; 9. Material tank; 10. Circulation pump. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0022] Reference Figure 1As shown in the preferred embodiment of this utility model, an organic centrifugal membrane assembly 7 includes an organic membrane sheet 701. The organic membrane sheet 701 has a through hole 702 for a hollow rotating shaft to pass through. The organic membrane sheet 701 includes a first organic membrane sheet and a second organic membrane sheet. A guide net is installed between the first and second organic membrane sheets, and the guide net is welded and sealed to the edges of the first and second organic membrane sheets. A plastic sleeve is tightly connected to the outside of the first and second organic membrane sheets, fixing them to the rotating shaft. This allows the filtrate to pass through the membrane surface into the guide net and flow into the hollow rotating shaft connected by the through hole 702, thus achieving material filtration. This organic centrifugal membrane assembly has low installation requirements and is easy to install and operate. Furthermore, because the membrane sheet is lightweight and easy to process, its size can be selected according to actual needs, thereby increasing the membrane area and filtration capacity, and ultimately reducing the investment cost of the equipment.

[0023] As a preferred embodiment of this utility model, it may also have the following additional technical features: the organic membrane is disc-shaped, the thickness of the organic membrane is 4~8mm, and the outer diameter is 150~400mm. Therefore, the size can be selected according to actual needs, thereby increasing the membrane area of ​​the equipment and increasing the filtration capacity.

[0024] like Figure 2 As shown, a centrifugal filtration device includes a cylindrical shell. The shell contains a bearing for mounting the aforementioned organic centrifugal membrane assembly 7. A centrifugal motor 8, connected to a rotating shaft, is mounted at the bottom of the shell. One end of the centrifugal motor 8 is connected to a filtrate storage tank 6. An air source tank 1 and a material tank 9 are connected to the filtrate storage tank 6, and the material tank 9 is connected to the bottom of the shell. This allows the device to use air and electricity as power sources to transport sludge from the material tank to the organic centrifugal membrane assembly. Turning on the motor drives the centrifugal membrane to rotate, achieving centrifugation. Simultaneously, cross-flow filtration and centrifugation are used to achieve high-concentration of sludge or waste fermentation liquid, reducing the volume of sludge or waste fermentation liquid and recovering fermentation or anaerobic products.

[0025] In this embodiment, a circular threaded hole is opened at the bottom of the centrifugal motor 8. The circular threaded hole is the filtrate outlet, and the filtrate outlet is connected to the filtrate storage tank 6.

[0026] In this embodiment, a circulation pump 10 is installed on the pipe between the bottom of the material tank 9 and the shell; a reflux valve 5 and a pressure gauge 4 are provided on the pipe between the top of the shell and the material tank 9. A backwash valve 3 is installed on the pipe between the filtrate storage tank 6 and the gas source tank 1; a gas supply valve 2 is provided between the pipe between the gas source tank 1 and the circulation pump 10.

[0027] The centrifugal filtration device of this application consists of a cylindrical shell made of a special material that is pressure-resistant, acid and alkali-resistant, and high-temperature resistant. Inside, it contains a corrosion-resistant long bearing for mounting an organic centrifugal membrane assembly. The organic centrifugal membrane assembly is sealed within the special material cylinder. A matching rotary motor is installed at the bottom of the cylinder and connected to the organic centrifugal membrane assembly inside. A circular threaded hole is located at the bottom of the centrifugal motor, serving as the filtrate outlet. At the filtrate outlet, there is a small-capacity filtrate storage tank 6 made of a special material. The outlet of the storage tank 6 has a three-way connector, one end connected to a gas source tank and the other end having a discharge port. A circular threaded hole at the bottom of the cylinder connects to a pipeline to a material tank 9, and a valve is installed. An automatic semi-automatic electrical control system, along with matching instruments and valves, is installed at the motor and circulation points. Driven by the circulating pump 10, the device transports liquid from the material tank 9 to a special material tank containing the organic centrifugal membrane assembly 7. The motor then drives the organic centrifugal membrane to rotate and centrifuge, achieving the effect of centrifuging and separating the material in the tank. At the same time, the valve of the filtrate storage tank can be switched to achieve backwashing. Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An organic centrifugal membrane module, characterized by: The application relates to an organic membrane assembly, which comprises an organic membrane with a through hole for a rotating shaft, a first organic membrane, a second organic membrane, a flow guide net between the first organic membrane and the second organic membrane, and a plastic sleeve tightly connected to the outside of the first organic membrane and the second organic membrane.

2. The organic centrifugal membrane module of claim 1, wherein: The organic membrane is disc-shaped.

3. The organic centrifugal membrane module of claim 2, wherein: The thickness of the organic membrane is 4-8 mm, and the outer diameter is 150-400 mm.

4. The organic centrifugal membrane module of claim 1, wherein: The flow guide net is welded and sealed to the edges of the first organic membrane and the second organic membrane.

5. The organic centrifugal membrane module of claim 1, wherein: The rotating shaft is hollow.

6. A centrifugal filter apparatus characterized by: The application further relates to a centrifugal machine, which comprises a shell, a bearing for installing the organic membrane assembly in the shell, a centrifugal motor connected to the rotating shaft at the bottom of the shell, a filtrate storage tank communicated with one end of the centrifugal motor, an air source tank and a material tank connected to the filtrate storage tank, and a pipeline communicated between the material tank and the bottom of the shell.

7. The centrifugal filter apparatus of claim 6, wherein: A circular threaded hole is formed in the bottom of the centrifugal motor, the circular threaded hole is a filtrate outlet, and the filtrate outlet is communicated with the filtrate storage tank.

8. The centrifugal filter apparatus of claim 6, wherein: A circulating pump is installed on the pipeline between the bottom of the material tank and the shell; a backflow valve and a pressure gauge are arranged on the pipeline between the top of the shell and the material tank.

9. The centrifugal filter apparatus of claim 8, wherein: A backwashing valve is installed on the pipeline between the filtrate storage tank and the air source tank; and a gas supply valve is arranged between the pipeline between the air source tank and the circulating pump.

10. The centrifugal filter apparatus of claim 6, wherein: The shell is cylindrical.

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