A non-chemical self-flocculating silicon carbide membrane filtration device

Abstract

The utility model is suitable for silicon carbide membrane filtration technical field provides a kind of agentless self-flocculation silicon carbide membrane filtration device, it include: fixed seat, the fixed seat is equipped with reaction mechanism and water production tank;The reaction mechanism includes the reaction pool of being fixed on the fixed seat, the one side of the reaction pool is equipped with ladder, one end of the reaction pool is equipped with power supply, the power supply is connected and is equipped with electrode, the one side of the reaction pool is equipped with control electric box, the inside of the reaction pool is equipped with membrane box group, the outside of the reaction pool adjacent the membrane box group is equipped with driving assembly, the top of the reaction pool is equipped with mud scraping assembly, the bottom of the reaction pool is equipped with a plurality of groups of first discharge pipeline, by this, the utility model has the advantages that reagent dosage is less, sludge production is low;High degree of automation, convenient operation;Equipment integration degree is high, and floor area is small;Processing effect is more optimal, and special water quality is suitable;Environment-friendly strong advantage.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide membrane filtration technology, and in particular to a chemical-free self-flocculating silicon carbide membrane filtration device. Background Technology

[0002] Traditional chemical flocculation technology involves adding chemical flocculants (such as polyaluminum chloride (PAC) and polyacrylamide (PAM)) to water. The flocs are formed by the neutralization and adsorption bridging effects of these agents, causing suspended solids and colloidal particles to aggregate and form flocs, which are then removed by sedimentation or flotation in subsequent filtration equipment. This process has some drawbacks and disadvantages, such as:

[0003] 1. High consumption of chemicals and risk of secondary pollution. Continuous addition of chemical agents is required, resulting in high long-term operating costs, and chemical residues may affect the quality of the effluent (such as the potential health risks posed by aluminum salt residues).

[0004] 2. The amount of sludge produced is relatively large (the chemicals themselves participate in the sedimentation). This increases sludge treatment costs (such as dewatering and landfill fees).

[0005] 3. Sensitive to water quality fluctuations. Significantly affected by water temperature, pH, and suspended solids concentration: flocculation efficiency decreases at low temperatures, and pH needs to be adjusted to a specific range (e.g., the optimal pH for PAC is 6-8). Sudden changes in water quality (such as a sharp increase in pollutant concentration) necessitate readjustment of the dosage, resulting in poor flexibility.

[0006] 4. Low level of automation and high degree of manual intervention. Manual monitoring of water quality and adjustment of chemical dosage are required, making it difficult to achieve full-process automated control and resulting in high labor costs.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the aforementioned shortcomings, this invention provides a drug-free self-flocculating silicon carbide membrane filtration device.

[0009] To achieve the above objectives, this utility model provides a drug-free self-flocculating silicon carbide membrane filtration device, comprising: a fixed base, on which a reaction mechanism and a product water tank are provided; the reaction mechanism includes a reaction tank fixed on the fixed base, a ladder on one side of the reaction tank, a power supply at one end of the reaction tank, electrodes connected to the power supply, a control box on one side of the reaction tank, a membrane box assembly inside the reaction tank, a drive assembly outside the reaction tank adjacent to the membrane box assembly, a sludge scraping assembly at the top of the reaction tank, and several sets of first discharge pipes at the bottom of the reaction tank.

[0010] According to the present invention, a chemical-free self-flocculating silicon carbide membrane filtration device includes a driving assembly comprising a permeate pump located outside the reaction tank and connected to the fixed base, a first pipe connected to the membrane tank assembly on the permeate pump, a backwash pump connected to the fixed base on one side of the permeate pump, a second pipe connected to the membrane tank assembly on the backwash pump, an aeration fan connected to the fixed base on one side of the backwash pump, and a third pipe connected to the membrane tank assembly on the aeration fan.

[0011] According to the present invention, a drug-free self-flocculating silicon carbide membrane filtration device is characterized in that a UV sterilization device is provided on the side of the product water pump away from the backwash pump, the UV sterilization device is connected to the product water tank through a fourth pipe, and the fourth pipe is connected to the first pipe.

[0012] According to the present invention, the drugless self-flocculating silicon carbide membrane filtration device includes a sludge scraping assembly comprising a drive motor disposed at the top of the reaction tank, an output shaft disposed at the output end of the drive motor, a first connecting belt sleeved on the outside of the output shaft, a first driven shaft disposed inside the first connecting belt, and the first driven shaft disposed at the top of the reaction tank.

[0013] According to the present invention, a drug-free self-flocculating silicon carbide membrane filtration device is provided on one side of the first driven shaft, and two sets of rollers are fixed on both the first driven shaft and the second driven shaft. The two sets of rollers are connected by a second connecting belt.

[0014] According to the present invention, in the reagent-free self-flocculating silicon carbide membrane filtration device, the bottoms of the first driven shaft and the second driven shaft are both connected to the top of the reaction tank via support seats.

[0015] According to the present invention, a drug-free self-flocculating silicon carbide membrane filtration device is provided on the second connecting belt, which is provided inside the reaction tank. A groove is provided below the first driven shaft, which is located inside the reaction tank. An inclined plate is provided at the end of the groove away from the first driven shaft, and the top surface of the inclined plate abuts against the bottom surface of the scraper.

[0016] According to the present invention, a drug-free self-flocculating silicon carbide membrane filtration device is provided with an outlet on one side of the groove, and a second discharge pipe is connected to the outlet.

[0017] This utility model provides a drug-free self-flocculating silicon carbide membrane filtration device, comprising: a fixed base, on which a reaction mechanism and a product water tank are mounted; the reaction mechanism includes a reaction tank fixed to the fixed base, a ladder on one side of the reaction tank, a power supply at one end of the reaction tank with electrodes connected to the power supply, a control box on one side of the reaction tank, a membrane tank assembly inside the reaction tank, a drive assembly near the outside of the membrane tank assembly, a sludge scraping assembly at the top of the reaction tank, and several sets of first discharge pipes at the bottom of the reaction tank. This utility model achieves the following beneficial effects through the above technical solution:

[0018] 1. Low dosage and low sludge production. No additional chemical flocculant is needed; flocculant is generated solely through electrode electrolysis, reducing chemical costs and secondary pollution. Sludge volume is reduced by 30%–50% compared to traditional methods (no residual precipitate), and the sludge has low moisture content and excellent dewatering performance.

[0019] 2. High degree of automation and convenient operation. The reaction intensity can be adjusted by current and voltage to adapt to water quality fluctuations, eliminating the need for frequent adjustments to the type of reagent, making it suitable for intelligent management;

[0020] 3. The equipment has a high degree of integration and occupies a small area (more than 50% less than traditional processes);

[0021] 4. Superior treatment effect, suitable for special water quality. It has a higher removal rate of heavy metal ions (such as Cu²⁺, Cr³⁺), emulsified oil, and recalcitrant organic matter, and can achieve deep treatment. The free radicals (・OH) generated by electrolysis have an oxidizing effect, which can simultaneously degrade some organic matter and improve the quality of effluent.

[0022] 5. Highly environmentally friendly. There is no risk of chemical leakage, and no pungent odor or harmful gas emissions are emitted during operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0025] Figure 3 This is the utility model Figure 2 A schematic diagram of the structure of the enlarged view at point A in the middle;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0027] Figure 5 This is a top view of the structure of this utility model;

[0028] In the diagram, 1-fixed base, 2-reaction tank, 3-ladder, 4-power supply, 5-electrode, 6-control box, 7-membrane tank assembly, 8-first discharge pipe, 9-product water pump, 10-first pipe, 11-backwash pump, 12-second pipe, 13-aeration blower, 14-third pipe, 15-UV sterilization device, 16-fourth pipe, 17-drive motor, 18-output shaft, 19-first connecting belt, 20-first driven shaft, 21-roller, 22-second connecting belt, 23-second driven shaft, 24-support base, 25-scraper, 26-sloping plate, 27-groove, 28-outlet, 29-second discharge pipe, 30-product water tank. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] See Figures 1-5 This utility model provides a drug-free self-flocculating silicon carbide membrane filtration device, comprising: a fixed base 1, on which a reaction mechanism and a product water tank 30 are provided; the reaction mechanism includes a reaction pool 2 fixed on the fixed base 1, a ladder 3 on one side of the reaction pool 2, a power supply 4 at one end of the reaction pool 2, an electrode 5 connected to the power supply 4, a control box 6 on one side of the reaction pool 2, a membrane box assembly 7 inside the reaction pool 2, a drive assembly outside the reaction pool 2 adjacent to the membrane box assembly 7, a sludge scraping assembly at the top of the reaction pool 2, and several sets of first discharge pipes 8 at the bottom of the reaction pool 2.

[0033] See Figure 1 and Figure 5 Preferably, the driving assembly of this utility model includes a permeate pump 9 located outside the reaction tank 2 and connected to the fixed base 1. The permeate pump 9 is provided with a first pipe 10 connected to the membrane tank assembly 7. A backwash pump 11 connected to the fixed base 1 is provided on one side of the permeate pump 9. A second pipe 12 connected to the membrane tank assembly 7 is provided on the backwash pump 11. An aeration fan 13 connected to the fixed base 1 is provided on one side of the backwash pump 11. A third pipe 14 connected to the membrane tank assembly 7 is provided on the aeration fan 13. The permeate pump 9 collects the permeate water. The aeration fan 13 generates a certain amount of disturbance to prevent fouling of the membrane tank assembly 7, making the mixing more uniform and thorough. The backwash pump 11 can backwash and clean the membrane tank assembly 7 to avoid fouling.

[0034] See Figure 1 and Figure 5 In addition, the water production pump 9 of this utility model is provided with a UV sterilization device 15 on the side away from the backwash pump 11. The UV sterilization device 15 is connected to the water production tank 30 through a fourth pipe 16, and the fourth pipe 16 is connected to the first pipe 10. The UV sterilization device 15 can further sterilize and disinfect the filtered water, thereby improving water quality and safety.

[0035] See Figure 2 and Figure 3 Furthermore, the sludge scraping assembly of this utility model includes a drive motor 17 disposed at the top of the reaction tank 2. The output end of the drive motor 17 is provided with an output shaft 18. A first connecting belt 19 is sleeved on the outside of the output shaft 18. A first driven shaft 20 is disposed inside the first connecting belt 19. The first driven shaft 20 is disposed at the top of the reaction tank 2. The drive motor 17 drives the output shaft 18 to rotate, thereby driving the first connecting belt 19 and the first driven shaft 20 to rotate.

[0036] See Figure 3 Furthermore, a second driven shaft 23 is provided on one side of the first driven shaft 20 of this utility model. Two sets of rollers 21 are fixed on both the first driven shaft 20 and the second driven shaft 23. The two sets of rollers 21 are connected by a second connecting belt 22. The rotation of the first driven shaft 20 drives the rollers 21 and the second driven shaft 23 to move synchronously under the action of the second connecting belt 22.

[0037] See Figure 3Meanwhile, the bottom of the first driven shaft 20 and the second driven shaft 23 of this utility model are both connected to the top of the reaction tank 2 through a support base 24, which facilitates the rotation of the first driven shaft 20 and the second driven shaft 23.

[0038] See Figure 3 Even better, the second connecting belt 22 of this utility model is provided with a retractable scraper 25 located inside the reaction tank 2. Below the first driven shaft 20, there is a groove 27 located inside the reaction tank 2. At the end of the groove 27 away from the first driven shaft 20, there is an inclined plate 26. The top surface of the inclined plate 26 abuts against the bottom surface of the scraper 25. The scraper 25 is moved by the second connecting belt 22. During the movement, the scraper 25 can abut against the inclined plate 26. At the same time, since the scraper 25 is retractable, the scraper 25 will adapt to the inclined trajectory of the inclined plate 26, so that the scraper 25 scrapes the flocculated impurities into the groove 27 for discharge.

[0039] See Figure 3 Finally, the groove 27 of this utility model is provided with an outlet 28 on one side, and a second discharge pipe 29 is connected to the outlet 28 to facilitate the discharge of impurities.

[0040] The working principle of this utility model:

[0041] External personnel add raw water to reaction tank 2 via gravity flow or pumping. After adjusting the influent flow rate, power supply 4 is turned on, energizing electrode 5. As the raw water flows through electrode 5, the current causes tiny impurities in the water to flocculate and float or settle. The water is then discharged from reaction tank 2 to the outside via the first discharge pipe 8 at the bottom of the tank or the second discharge pipe 29 in the top sludge scraper. The clarified raw water overflows to the rear membrane tank group 7. Once the water level in membrane tank group 7 reaches a certain height, aeration fan 13 is started. When the water level in membrane tank group 7 reaches a further certain height, permeate pump 9 is started. Driven by permeate pump 9, the permeate is discharged and sterilized by UV sterilization device 15 before entering permeate tank 30 for reuse. After running for a certain period, clean water is pumped back into membrane tank group 7 via backwash pump 11 to backwash the membrane modules. Control box 6 is the central control component of the entire system, allowing for real-time online adjustment of parameters such as running time and backwash time.

[0042] This invention employs an electrocoagulation + SiC flat-plate ceramic membrane filtration process: The electrocoagulation system uses electricity instead of expensive chemical reagents, simultaneously removing heavy metals, suspended solids, emulsified organic matter, and various other pollutants from water. Electrocoagulation involves applying direct current to multiple steel plates, creating an electric field between them, which draws water into the gaps between the plates. In this electric field, some of the energized steel plates are consumed and enter the water. Ionic and non-ionic pollutants in the electric field are energized and react with the ionization products and the consumed steel plates. During this process, the interaction of various ions typically results in them combining in their most stable form to form solid particles, which precipitate out of the water. The flat-plate membrane operates submerged, using negative pressure suction to drive water flow from the outside in through the membrane layer. Tiny particles are blocked and intercepted by the membrane, achieving material separation and effectively removing suspended solids, algae, precipitated metal oxides, colloids, and some large molecular organic matter from the water. Furthermore, after biochemical substances are blocked, they adhere to the surface of the membrane layer to form a biofilter cake layer, thus realizing the function of a membrane bioreactor.

[0043] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A non-chemical self-flocculating silicon carbide membrane filtration device, characterized by, include: A fixed base is provided, on which a reaction mechanism and a product water tank are mounted; The reaction mechanism includes a reaction tank fixed on the fixed base, a ladder on one side of the reaction tank, a power supply at one end of the reaction tank with electrodes connected to the power supply, a control box on one side of the reaction tank, a membrane box assembly inside the reaction tank, a drive assembly outside the reaction tank near the membrane box assembly, a sludge scraping assembly at the top of the reaction tank, and several sets of first discharge pipes at the bottom of the reaction tank.

2. The non-aqueous, self-flocculating, carbonized silicon membrane filtration device of claim 1, wherein, The drive assembly includes a permeate pump located outside the reaction tank and connected to the fixed base. The permeate pump has a first pipe connected to the membrane tank assembly. A backwash pump connected to the fixed base is located on one side of the permeate pump. A second pipe connected to the membrane tank assembly is located on the backwash pump. An aeration fan connected to the fixed base is located on one side of the backwash pump. A third pipe connected to the membrane tank assembly is located on the aeration fan.

3. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 2, characterized in that, A UV sterilization device is provided on the side of the product water pump away from the backwash pump. The UV sterilization device is connected to the product water tank through a fourth pipe, and the fourth pipe is connected to the first pipe.

4. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 1, characterized in that, The sludge scraping assembly includes a drive motor located at the top of the reaction tank. The output end of the drive motor is provided with an output shaft. A first connecting belt is sleeved on the outside of the output shaft. A first driven shaft is provided inside the first connecting belt. The first driven shaft is located at the top of the reaction tank.

5. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 4, characterized in that, A second driven shaft is provided on one side of the first driven shaft. Two sets of rollers are fixed on both the first driven shaft and the second driven shaft, and the two sets of rollers are connected by a second connecting belt.

6. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 5, characterized in that, The bottoms of both the first driven shaft and the second driven shaft are connected to the top of the reaction tank via support bases.

7. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 5, characterized in that, The second connecting belt is provided with a retractable scraper located inside the reaction tank. Below the first driven shaft is a groove located inside the reaction tank. At the end of the groove away from the first driven shaft, there is an inclined plate. The top surface of the inclined plate abuts against the bottom surface of the scraper.

8. The reagent-free self-flocculating silicon carbide membrane filtration device according to claim 7, characterized in that, An outlet is provided on one side of the groove, and a second discharge pipe is connected to the outlet.

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