High-viscosity wastewater MBR (Membrane Bioreactor) membrane frame

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a high-viscosity wastewater MBR (Membrane Bioreactor) membrane frame. Comprising a sludge scraping mechanism, an MBR membrane frame body and a plurality of supporting legs, the sludge scraping mechanism comprises two outer stainless steel sleeves, two reciprocating motors, two inner stainless steel square pipes and a plurality of stainless steel shifting pieces, driving gears are arranged at the output ends of the reciprocating motors, and a plurality of gear bayonets are formed in the outer sides of the inner stainless steel square pipes; the inner stainless steel square tube is driven by the reciprocating motor to slide in the outer stainless steel sleeve, and the sludge at the bottom of the MBR membrane frame body is actively cleaned by using the stainless steel shifting sheet, so that the sludge adhered to the membrane surface can be effectively scraped, the sludge is effectively prevented from being deposited on the membrane surface, the membrane flux and the operation efficiency are improved, and the service life of the MBR membrane frame is prolonged. The aeration dead zone is eliminated, the aeration energy consumption and the maintenance difficulty are reduced, the chemical cleaning period of the membrane component is prolonged, and the membrane wire breakage rate is reduced, so that the economical efficiency and the reliability of the MBR technology are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-viscosity wastewater MBR membrane frame. Background Technology

[0002] MBR (Membrane Bioreactor) technology combines biological treatment and membrane filtration, and has been widely used in wastewater treatment. In existing technologies, an MBR membrane frame typically consists of membrane modules, an aeration system, and a supporting structure. The membrane modules are used to trap microorganisms and pollutants in the water, achieving water purification; the aeration system introduces air into the membrane tank to generate water flow, preventing sludge deposition on the membrane surface while providing oxygen for the microorganisms. This structure gives MBR technology advantages such as high efficiency, small footprint, and good effluent quality.

[0003] However, due to the special characteristics of wastewater and the high viscosity of sludge, traditional aeration methods are difficult to effectively agitate the sludge, causing it to easily deposit on the membrane surface, affecting membrane flux and operating efficiency. Secondly, uneven aeration may lead to dead zones in the membrane tank, where sludge cannot be effectively agitated, further increasing the risk of sedimentation. In addition, high sludge concentration and viscosity may also lead to increased aeration energy consumption, maintenance difficulties, and a lack of active cleaning mechanisms, resulting in a shortened chemical cleaning cycle for membrane modules and an increased membrane fiber breakage rate, which seriously affects the economy and reliability of MBR technology. Utility Model Content

[0004] The purpose of this invention is to provide a high-viscosity wastewater MBR membrane frame, aiming to solve the technical problems in the prior art where, due to the special characteristics of the wastewater, the sludge has high viscosity, and traditional aeration methods are difficult to effectively agitate the sludge, leading to sludge deposition on the membrane surface, affecting membrane flux and operating efficiency. Secondly, uneven aeration may lead to dead zones in the membrane tank, where sludge cannot be effectively agitated, further increasing the risk of sedimentation. In addition, high sludge concentration and viscosity may also lead to increased aeration energy consumption, maintenance difficulties, and a lack of active cleaning mechanisms, resulting in a shortened chemical cleaning cycle for the membrane module and an increased membrane fiber breakage rate, seriously affecting the economic efficiency and reliability of MBR technology.

[0005] To achieve the above objectives, this utility model employs a high-viscosity wastewater MBR membrane frame, comprising a sludge scraping mechanism and an MBR membrane frame body. Multiple support legs are arranged below the MBR membrane frame body. The sludge scraping mechanism includes two outer stainless steel sleeves, two reciprocating motors, and two inner stainless steel square tubes. A drive gear is provided at the output end of each reciprocating motor. Multiple stainless steel paddles are arranged between the two inner stainless steel square tubes. Multiple gear slots are provided on the outer side of each inner stainless steel square tube. The two outer stainless steel sleeves are respectively fixedly connected to their corresponding support legs and located between the two support legs. The two reciprocating motors are respectively fixedly connected to the MBR membrane frame body and located below the MBR membrane frame body and above their corresponding outer stainless steel sleeves. The two inner stainless steel square tubes are respectively slidably connected to their corresponding outer stainless steel sleeves and located inside the outer stainless steel sleeves. The drive gear drives the corresponding inner stainless steel square tube and is located at the corresponding gear slot.

[0006] The tilt angle of the stainless steel lever is 30°.

[0007] The stainless steel lever and the stainless steel baffle are both 2mm thick.

[0008] The reciprocating motor has a power of 0.75 kW, a speed of 5 rpm, and a reciprocating interval of 2 hours per cycle.

[0009] The sludge scraping mechanism covers 100% of the projected area of ​​the bottom of the MBR membrane frame body.

[0010] Among them, multiple stainless steel levers extend to the bottom of the support leg.

[0011] This utility model discloses a high-viscosity wastewater MBR membrane frame, comprising a sludge scraping mechanism and an MBR membrane frame body. Multiple support legs are arranged below the MBR membrane frame body. The sludge scraping mechanism includes two outer stainless steel sleeves, two reciprocating motors, and two inner stainless steel square tubes. A drive gear is provided at the output end of each reciprocating motor. Multiple stainless steel levers are arranged between the two inner stainless steel square tubes. Multiple gear slots are provided on the outer side of each inner stainless steel square tube. The reciprocating motors drive the inner stainless steel square tubes to slide within the outer stainless steel sleeves, and the stainless steel levers on the inner stainless steel square tubes engage with the bottom of the MBR membrane frame body. The sludge is actively cleaned by stainless steel scrapers with specific angles and thicknesses to effectively scrape off sludge adhering to the membrane surface. Furthermore, the scraping mechanism's stroke covers the entire projected area of ​​the bottom of the MBR membrane frame, and multiple stainless steel scrapers extend to the bottom of the support legs, ensuring thorough cleaning without any blind spots. This design not only effectively prevents sludge deposition on the membrane surface, improving membrane flux and operating efficiency, but also eliminates aeration dead zones, reduces aeration energy consumption and maintenance difficulty, extends the chemical cleaning cycle of the membrane module, and reduces membrane fiber breakage rate, thereby significantly improving the economy and reliability of MBR technology. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional perspective view of a high-viscosity wastewater MBR membrane frame according to this utility model.

[0014] Figure 2 This is the utility model Figure 1 A magnified view of a portion of point A in the middle.

[0015] Figure 3 This is a schematic diagram of the structure of a stainless steel lever in a high-viscosity wastewater MBR membrane frame according to this utility model.

[0016] Figure 4 This is a three-dimensional perspective view of a stainless steel lever being removed from the bottom of a high-viscosity wastewater MBR membrane holder according to this utility model.

[0017] 1-MBR membrane frame body, 2-support leg, 3-outer stainless steel sleeve, 4-reciprocating motor, 5-inner stainless steel square tube, 6-drive gear, 7-stainless steel lever, 8-gear bayonet, 9-stainless steel baffle. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a high-viscosity wastewater MBR membrane frame, including a sludge scraping mechanism and an MBR membrane frame body 1. Multiple support legs 2 are arranged below the MBR membrane frame body 1. The sludge scraping mechanism includes two outer stainless steel sleeves 3, two reciprocating motors 4, and two inner stainless steel square tubes. A drive gear 6 is provided at the output end of each reciprocating motor 4. Multiple stainless steel paddles 7 are arranged between the two inner stainless steel square tubes. Multiple gear slots 8 are provided on the outer side of each inner stainless steel square tube. The two outer stainless steel sleeves 3 are respectively fixedly connected to their corresponding support legs 2 and located between the two support legs 2. The two reciprocating motors 4 are respectively fixedly connected to the MBR membrane frame body 1 and located below the MBR membrane frame body 1 and above their corresponding outer stainless steel sleeves 3. The two inner stainless steel square tubes are respectively slidably connected to their corresponding outer stainless steel sleeves 3 and located inside the outer stainless steel sleeves 3. The drive gear 6 drives the corresponding inner stainless steel square tube and is located at the corresponding gear slot 8.

[0020] In this embodiment, the reciprocating motor 4 drives the inner stainless steel square tube to slide inside the outer stainless steel sleeve 3, and the stainless steel scraper 7 is used to actively clean the sludge at the bottom of the MBR membrane frame body 1. This mechanical sludge scraping method can effectively address the problem of easy sludge deposition in high-viscosity wastewater and improve membrane flux and operating efficiency.

[0021] Furthermore, a stainless steel baffle 9 is provided above the stainless steel lever 7.

[0022] In this embodiment, the design of the stainless steel baffle 9 can further enhance the sludge scraping effect, prevent sludge from splashing out or flowing back during the sludge scraping process, and ensure that the sludge scraping process is clean and efficient.

[0023] Furthermore, the tilt angle of the stainless steel lever 7 is 30°.

[0024] In this embodiment, the tilt design allows the stainless steel blade 7 to more effectively contact and scrape away the sludge on the membrane surface during the sludge scraping process, while reducing the resistance during sludge scraping and improving the sludge scraping efficiency.

[0025] Furthermore, the thickness of both the stainless steel lever 7 and the stainless steel baffle 9 is 2mm.

[0026] In this embodiment, the thickness design ensures both the strength of the stainless steel shovel 7 and the stainless steel baffle 9, as well as their flexibility, making the sludge scraping process smoother and also helping to reduce damage to the membrane surface during sludge scraping.

[0027] Furthermore, the power of the reciprocating motor 4 is 0.75 kW, the speed of the reciprocating motor 4 is 5 rpm, and the reciprocating interval of the reciprocating motor 4 is 2 hours as one cycle.

[0028] In this embodiment, by designing the motor power, speed and reciprocating interval reasonably, sufficient power for the sludge scraping mechanism is ensured while avoiding energy waste. At the same time, the continuity and stability of the sludge scraping process are ensured, and the operating efficiency of the entire MBR membrane frame is improved.

[0029] Furthermore, the stroke of the sludge scraping mechanism covers 100% of the projected area of ​​the bottom of the MBR membrane frame body 1.

[0030] In this embodiment, the full-coverage design ensures that there are no dead corners at the bottom of the MBR membrane frame body 1, effectively preventing the deposition and accumulation of sludge on the membrane surface, and further improving membrane flux and operating efficiency.

[0031] Furthermore, all of the stainless steel levers 7 extend to the bottommost end of the support leg 2.

[0032] In this embodiment, this design ensures the thoroughness of the sludge scraping process, effectively removing even the sludge at the very edges, further improving the sludge scraping effect and guaranteeing the long-term stable operation of the MBR membrane frame.

[0033] In this utility model, firstly, the entire MBR membrane frame body 1 is stably installed in the tank for treating high-viscosity wastewater via multiple supporting legs 2 below it. Then, two reciprocating motors 4 are started. The output end of the reciprocating motors 4 is equipped with the drive gear 6. These gears mesh with the gear slot 8 on the outside of the inner stainless steel square tube, thereby driving the inner stainless steel square tube to perform reciprocating sliding motion within the outer stainless steel sleeve 3. When the inner stainless steel square tube slides, the stainless steel pawl 7 also moves accordingly to scrape off the sludge at the bottom of the MBR membrane frame body 1.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A membrane frame for high-viscosity wastewater MBR, characterized in that, The device includes a sludge scraping mechanism and an MBR membrane frame body. Multiple support legs are located below the MBR membrane frame body. The sludge scraping mechanism comprises two outer stainless steel sleeves, two reciprocating motors, and two inner stainless steel square tubes. A drive gear is located at the output end of each reciprocating motor. Multiple stainless steel paddles are positioned between the two inner stainless steel square tubes. Multiple gear slots are located on the outer side of each inner stainless steel square tube. The two outer stainless steel sleeves are fixedly connected to their respective support legs and are located between the two support legs. The two reciprocating motors are fixedly connected to the MBR membrane frame body and are located below the MBR membrane frame body and above their respective outer stainless steel sleeves. The two inner stainless steel square tubes are slidably connected to their respective outer stainless steel sleeves and are located inside the outer stainless steel sleeves. The drive gear drives the corresponding inner stainless steel square tube and is located at the corresponding gear slot.

2. The high-viscosity wastewater MBR membrane frame as described in claim 1, characterized in that, A stainless steel baffle is provided above the stainless steel lever.

3. The high-viscosity wastewater MBR membrane frame as described in claim 2, characterized in that, The tilt angle of the stainless steel lever is 30°.

4. The high-viscosity wastewater MBR membrane frame as described in claim 3, characterized in that, The thickness of both the stainless steel lever and the stainless steel baffle is 2mm.

5. The high-viscosity wastewater MBR membrane frame as described in claim 3, characterized in that, The reciprocating motor has a power of 0.75 kW, a speed of 5 rpm, and a reciprocating interval of 2 hours per cycle.

6. The high-viscosity wastewater MBR membrane frame as described in claim 5, characterized in that, The sludge scraping mechanism covers 100% of the projected area of ​​the bottom of the MBR membrane frame body.

7. The high-viscosity wastewater MBR membrane frame as described in claim 6, characterized in that, Multiple stainless steel levers extend to the bottom of the support leg.

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