Multi-stage filtering domestic sewage sterilization device

Abstract

The application relates to the sewage treatment technical field, in particular to a multi-stage filtering domestic sewage sterilization device, which comprises a sterilization chamber, a water inlet pipe, a micro observation chamber, a clamping top cover, a heating chamber and a multi-stage magnetic separation assembly; the bottom of the sterilization chamber is fixedly connected with the top of the heating chamber; the heating chamber is arranged at the bottom middle part of the sterilization chamber; and the micro observation chamber is fixedly connected at one side of the top of the sterilization chamber. The multi-stage filtering domestic sewage sterilization device can generate a magnetic field through electromagnets of the multi-stage magnetic separation assembly, actively adsorb and remove suspended particles with magnetism in sewage and non-magnetic impurities captured through magnetic flocculation, and reduce the turbidity of sewage entering the sterilization chamber. The magnetic selection frame is arranged outside the sterilization chamber, the hollow cover cylinder is directly arranged in the water flow, and the on-line and continuous pretreatment is realized; the quick release structure composed of the limiting rod, the wedge-shaped insert block and the compression spring makes the inspection, cleaning or replacement of the adsorption plate and other consumable parts extremely simple and fast.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to a multi-stage filtration device for sterilizing domestic wastewater. Background Technology

[0002] With the acceleration of urbanization and the improvement of residents' living standards, the discharge of domestic sewage is increasing day by day, and its composition is becoming more and more complex, containing a large number of pathogens, viruses, parasite eggs and other harmful microorganisms. Effectively killing these pathogenic factors in sewage is a key link in preventing the spread of diseases and protecting public health and environmental safety. The sterilization process is particularly important in scenarios such as sewage treatment plant effluent reuse, decentralized sewage treatment in rural areas and emergency epidemic prevention.

[0003] Currently, mainstream wastewater sterilization technologies primarily rely on chemical disinfection. While these methods offer significant sterilization effects, they may produce byproducts with carcinogenic, teratogenic, and mutagenic effects, such as trihalomethanes, causing secondary chemical pollution. Furthermore, long-term use can lead to drug resistance in microorganisms and is ineffective at inactivating certain Cryptosporidium eggs. Residual chlorine also poses potential toxicity to aquatic ecosystems. Physical disinfection, while avoiding secondary chemical pollution, is highly susceptible to the turbidity of wastewater. High levels of suspended solids, colloids, and other impurities in the wastewater severely block and scatter ultraviolet light, causing a sharp decline in sterilization efficiency. To ensure effectiveness, deep pretreatment of the wastewater is often necessary, increasing the complexity of the process and operating costs. Utility Model Content

[0004] This application provides a multi-stage filtration system for sterilizing domestic sewage to address the following technical problem: when the sewage contains high levels of suspended solids, colloids, and other impurities, it severely blocks and scatters ultraviolet light, leading to a sharp decline in sterilization efficiency. To ensure effectiveness, deep pretreatment of the sewage is often required, increasing the complexity of the process and operating costs.

[0005] This application provides a multi-stage filtration device for sterilizing domestic sewage, which adopts the following technical solution:

[0006] A multi-stage filtration sterilization device for domestic sewage includes a sterilization chamber, an inlet pipe, a micro-observation chamber, a snap-fit ​​top cover, a heating chamber, and a multi-stage magnetic separation assembly. The bottom of the sterilization chamber is fixedly connected to the top of the heating chamber, and the heating chamber is located in the middle of the bottom end of the sterilization chamber. The micro-observation chamber is fixedly connected to one side of the top of the sterilization chamber. The inlet pipe penetrates one inner wall of the sterilization chamber and is located above the inlet of the sterilization chamber. The snap-fit ​​top cover is snapped onto the bottom of the micro-observation chamber, and the multi-stage magnetic separation assembly is installed on the top of the sterilization chamber.

[0007] In one feasible technical solution of this application, the magnetic separation assembly includes a DC motor, a hollow cover, a thrust bearing, a fixed shaft, an electromagnet, and a magnetic separation frame. The DC motor is installed on the outside of the magnetic separation frame. The hollow cover is fixedly connected to the outside of the output end of the DC motor. The fixed shaft is rotatably connected to the inside of the hollow cover. The thrust bearing is fixedly connected to one end of the fixed shaft and is used to prevent the fixed shaft from rotating with the hollow cover. The electromagnet is fixedly connected to the outside of the fixed shaft and is used to generate a magnetic field. The magnetic separation frame is disposed on the outside of the sterilization chamber.

[0008] In one feasible technical solution of this application, the outer side of the hollow cover is further provided with a flared disc for adsorbing sewage impurities.

[0009] In one feasible technical solution of this application, the micro-observation chamber is further provided with an adsorption plate and a wear-resistant alloy sealing ring. The adsorption plate is fixedly connected to the inside of the micro-observation chamber, and the wear-resistant alloy sealing ring is disposed on the outside of the adsorption plate.

[0010] In one feasible technical solution of this application, a limiting rod is also fixedly connected to the bottom of the snap-fit ​​top cover, and the limiting rod is snapped into the inside of the adsorption plate.

[0011] In one feasible technical solution of this application, the adsorption plate is further provided with a wedge-shaped insert and a compression spring inside. The wedge-shaped insert is inserted into the bottom inner side of the limiting rod, and the two sides of the compression spring are fixedly connected to the adsorption plate and the inner side of the wedge-shaped insert.

[0012] In one feasible technical solution of this application, a slot with a size matching the wedge-shaped insert is also provided on the inner bottom side of the limiting rod.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This device uses the electromagnets of a multi-stage magnetic separator to generate a magnetic field, actively adsorbing and removing magnetic suspended particles and non-magnetic impurities captured by magnetic flocculation from wastewater, thus reducing the turbidity of the wastewater entering the sterilization chamber. The magnetic separator frame is located outside the sterilization chamber, with the hollow shroud directly immersed in the water flow, enabling online and continuous pretreatment. Furthermore, the micro-observation chamber allows operators to directly observe the water flow, impurity adsorption, and the working status of the adsorption plates, achieving process visualization. The quick-release structure, consisting of a limit rod, wedge-shaped blocks, and compression springs, makes the inspection, cleaning, and replacement of consumable parts such as the adsorption plates exceptionally simple and quick, greatly reducing the intensity and time of maintenance work and ensuring continuous and efficient operation of the equipment. When physical ultraviolet sterilization is ineffective under extreme conditions, or for certain highly resistant pathogens, the heating chamber can be activated for thermal sterilization, thereby improving the sterilization effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a multi-stage filtration domestic sewage sterilization device according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the internal structure of the sterilization chamber in an embodiment of this application.

[0018] Figure 3 This is a distribution diagram of the heating chamber in an embodiment of this application.

[0019] Figure 4 This is a distribution diagram of the limiting rods in the embodiments of this application.

[0020] Figure 5 This is a schematic diagram of the internal structure of the micro-observation chamber in an embodiment of this application.

[0021] Figure 6 This is a cross-sectional view of the inner side of the adsorption plate in the embodiment of this application.

[0022] Figure 7 This is a schematic diagram of the structure of the multi-stage magnetic separation component in the embodiments of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 11. Sterilization chamber; 12. Water inlet pipe; 13. Microscopic observation chamber; 14. Snap-fit ​​top cover; 15. Heating chamber; 16. Multi-stage magnetic separation assembly; 161. DC motor; 162. Hollow cover; 163. Thrust bearing; 164. Fixed shaft; 165. Electromagnet; 166. Magnetic separation frame; 2. Adsorption plate; 4. Wear-resistant alloy sealing ring; 5. Limiting rod; 6. Wedge-shaped insert; 7. Compression spring; 8. Slot; 9. Flared disc. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0030] This application discloses a multi-stage filtration device for sterilizing domestic sewage. (Refer to...) Figures 1 to 7The multi-stage filtration domestic sewage sterilization device includes a sterilization chamber 11, an inlet pipe 12, a micro-observation chamber 13, a snap-fit ​​top cover 14, a heating chamber 15, and a multi-stage magnetic separation component 16. The bottom of the sterilization chamber 11 is fixedly connected to the top of the heating chamber 15. The heating chamber 15 is located in the middle of the bottom end of the sterilization chamber 11. The micro-observation chamber 13 is fixedly connected to one side of the top of the sterilization chamber 11. The inlet pipe 12 penetrates one side of the inner wall of the sterilization chamber 11 and is located above the inlet of the sterilization chamber 11. The snap-fit ​​top cover 14 is snapped onto the bottom of the micro-observation chamber 13. The multi-stage magnetic separation component 16 is installed on the top of the sterilization chamber 11.

[0031] A DC motor 161 drives the hollow cover 162 and its outer flared disk 9 to rotate at high speed. This creates a strong agitation of the water flow, increasing the probability of suspended matter coming into contact with the magnetic field area.

[0032] The multi-stage magnetic separation assembly 16 includes a DC motor 161, a hollow cylinder 162, a thrust bearing 163, a fixed shaft 164, an electromagnet 165, and a magnetic separation frame 166. The DC motor 161 is mounted on the outside of the magnetic separation frame 166. The hollow cylinder 162 is fixedly connected to the outside of the output end of the DC motor 161. The fixed shaft 164 is rotatably connected to the inside of the hollow cylinder 162. The thrust bearing 163 is fixedly connected to one end of the fixed shaft 164 and is used to prevent the fixed shaft 164 from rotating with the hollow cylinder 162. The electromagnet 165 is fixedly connected to the outside of the fixed shaft 164 and is used to generate a magnetic field. The magnetic separation frame 166 is disposed on the outside of the sterilization chamber 11.

[0033] The rotating flared disc 9 increases the contact area with the wastewater. Magnetic suspended matter in the water flow and magnetic flocs formed through magnetic flocculation are captured and adsorbed onto the surfaces of the hollow cover 162 and the flared disc 9 by the magnetic field generated by the electromagnet 165. This step effectively removes most of the suspended solids that cause turbidity, clearing the way for subsequent physical disinfection.

[0034] The outer side of the hollow cover cylinder 162 is also provided with a flared disc 9 for adsorbing impurities in sewage.

[0035] The micro-observation chamber 13 is also equipped with an adsorption plate 2 and a wear-resistant alloy sealing ring 4. The adsorption plate 2 is fixedly connected to the inside of the micro-observation chamber 13, and the wear-resistant alloy sealing ring 4 is located on the outside of the adsorption plate 2.

[0036] The water, after magnetic separation pretreatment, flows upward through the micro-observation chamber 13. Here, the water is forced through the adsorption plate 2. The micro-observation chamber 13 provides a process visualization window, allowing operators to directly monitor water quality changes and the operating status of the adsorption plate 2. A wear-resistant alloy sealing ring 4 ensures long-term sealing and durability at this critical connection.

[0037] A limiting rod 5 is also fixedly connected to the bottom of the snap-on top cover 14, and the limiting rod 5 is snapped into the inside of the adsorption plate 2.

[0038] The adsorption plate 2 is also equipped with a wedge-shaped insert 6 and a compression spring 7. The wedge-shaped insert 6 is inserted into the bottom inner side of the limiting rod 5, and the two sides of the compression spring 7 are fixedly connected to the adsorption plate 2 and the inner side of the wedge-shaped insert 6.

[0039] The bottom inner side of the limiting rod 5 is also provided with a slot 8 that matches the size of the wedge-shaped insert 6.

[0040] The general process of using the multi-stage filtration domestic sewage sterilization device in this application embodiment is as follows:

[0041] Wastewater enters the device via pipes and a water pump. The multi-stage magnetic separator 16, located outside the sterilization chamber 11, is activated. A DC motor 161 drives a hollow casing 162 to rotate within the wastewater. Simultaneously, an electromagnet 165, fixed to a fixed shaft 164, remains stationary or undergoes controlled movement under the support of a thrust bearing 163, generating a strong and stable magnetic field. The flared disc 9, fixed to the outside of the hollow casing 162, rotates accordingly. A small portion of the pre-treated water rises to the micro-observation chamber 13 under heating conditions. Here, the water flows through the adsorption plate 2. The micro-observation chamber 13 is designed to allow operators to directly observe the working status of the adsorption plate 2 and the wastewater condition, enabling process visualization. A wear-resistant alloy sealing ring 4 ensures long-term sealing reliability at the connection between the observation chamber and the adsorption plate 2. Because the turbidity in the water has been significantly reduced, physical disinfection is highly effective, penetrating the water and completely inactivating pathogenic microorganisms. The heating chamber 15, located at the bottom of the sterilization chamber 11, can serve as an auxiliary or emergency sterilization unit. Activated when needed, the system uses thermal sterilization to ensure that the effluent meets strict hygiene standards under all circumstances, forming a multi-layered sterilization guarantee. When cleaning or replacing the adsorption plate 2, the snap-fit ​​top cover 14 is lifted upwards, and the limiting rod 5 at its bottom is pulled out from inside the adsorption plate 2. During the pulling process, the slot 8 on the inner side of the limiting rod 5 will squeeze the wedge-shaped insert 6, causing it to overcome the elastic force of the compression spring 7 and retract inwards, thus smoothly disassembling and completing the disassembly. During reassembly, simply align the limiting rod 5 with the insertion hole of the adsorption plate 2 and insert it. The wedge-shaped insert 6 will automatically spring into the slot 8 under the push of the compression spring 7, achieving reliable locking. This design makes maintenance simple and quick.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-stage filtration system for sterilizing domestic sewage, characterized in that, The device includes a sterilization chamber (11), a water inlet pipe (12), a micro-observation chamber (13), a snap-fit ​​top cover (14), a heating chamber (15), and a multi-stage magnetic separation assembly (16). The bottom of the sterilization chamber (11) is fixedly connected to the top of the heating chamber (15). The heating chamber (15) is located in the middle of the bottom end of the sterilization chamber (11). The micro-observation chamber (13) is fixedly connected to one side of the top of the sterilization chamber (11). The water inlet pipe (12) penetrates one side of the inner wall of the sterilization chamber (11) and is located above the water inlet of the sterilization chamber (11). The snap-fit ​​top cover (14) is snapped onto the bottom of the micro-observation chamber (13). The multi-stage magnetic separation assembly (16) is installed on the top of the sterilization chamber (11).

2. The multi-stage filtration domestic sewage sterilization device according to claim 1, characterized in that, The multi-stage magnetic separation assembly (16) includes a DC motor (161), a hollow cover (162), a thrust bearing (163), a fixed shaft (164), an electromagnet (165), and a magnetic separation frame (166). The DC motor (161) is mounted on the outside of the magnetic separation frame (166). The hollow cover (162) is fixedly connected to the outside of the output end of the DC motor (161). The fixed shaft (164) is rotatably connected to the inside of the hollow cover (162). The thrust bearing (163) is fixedly connected to one end of the fixed shaft (164) and is used to prevent the fixed shaft (164) from rotating with the hollow cover (162). The electromagnet (165) is fixedly connected to the outside of the fixed shaft (164) and is used to generate a magnetic field. The magnetic separation frame (166) is located on the outside of the sterilization chamber (11).

3. The multi-stage filtration domestic sewage sterilization device according to claim 2, characterized in that, The hollow cover (162) is also provided with an flared disc (9) for adsorbing sewage impurities on its outer side.

4. The multi-stage filtration domestic sewage sterilization device according to claim 1, characterized in that, The micro-observation chamber (13) is also equipped with an adsorption plate (2) and a wear-resistant alloy sealing ring (4). The adsorption plate (2) is fixedly connected to the inside of the micro-observation chamber (13), and the wear-resistant alloy sealing ring (4) is located on the outside of the adsorption plate (2).

5. The multi-stage filtration domestic sewage sterilization device according to claim 4, characterized in that, The bottom of the snap-fit ​​top cover (14) is also fixedly connected to a limiting rod (5), which is snapped into the inside of the adsorption plate (2).

6. The multi-stage filtration domestic sewage sterilization device according to claim 5, characterized in that, The adsorption plate (2) is also provided with a wedge-shaped insert (6) and a compression spring (7). The wedge-shaped insert (6) is inserted into the bottom inner side of the limiting rod (5), and the two sides of the compression spring (7) are fixedly connected to the inner side of the adsorption plate (2) and the wedge-shaped insert (6).

7. The multi-stage filtration domestic sewage sterilization device according to claim 6, characterized in that, The bottom inner side of the limiting rod (5) is also provided with a slot (8) that matches the size of the wedge-shaped insert (6).

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