A domestic sewage treatment device

Abstract

This application provides a domestic sewage treatment device, belonging to the field of sewage treatment technology. The device includes: a main body with a filter media chamber connected to the top of the main body; a filter module stacked in the filter media chamber, which includes a filter media frame, sealed on its periphery, open at the top, and equipped with a screen at the bottom; mating blocks at both ends of the top of the filter media frame, with a first strip-shaped hole on each mating block; iron blocks on both sides of the top of the filter media frame; a lifting device including a mounting plate longer than the length of the filter media frame, with movable blocks at both ends moving along the length direction; a mating plate located below the mounting plate at the bottom of the movable blocks; magnets matching the iron blocks on both sides of the mounting plate; and a lifting mechanism including a rotating rod vertically mounted on the top of the main body, with a horizontal bar at its upper end, a lifting winch on the horizontal bar, and a rope connected to the middle of the top surface of the mounting plate. The sewage treatment device has a relatively simple filter media replacement method and high replacement efficiency.

Description

Technical Field

[0001] This application belongs to the field of wastewater treatment technology, and in particular relates to a domestic wastewater treatment device. Background Technology

[0002] Every aspect of people's daily lives generates a large amount of wastewater, such as from washing, kitchens, laundry, and toilets. Domestic wastewater contains a large number of pathogenic microorganisms such as bacteria, viruses, and parasite eggs, as well as a large amount of organic matter. Untreated wastewater discharged at will will lead to soil and water degradation. Wastewater treatment is the foundation for improving the sanitary environment and enhancing the quality of life.

[0003] Laying long-distance sewage collection pipelines in vast rural areas and remote construction sites to collect sewage for centralized treatment is not practical. Instead, integrated sewage treatment equipment is used for on-site treatment, and the treated sewage is discharged locally or reused after meeting standards.

[0004] Integrated domestic sewage treatment equipment is a complete sewage treatment device that integrates multiple sewage treatment units, such as aerobic tanks, anoxic tanks, sedimentation tanks, and filtration units, into a compact, mobile, or semi-underground container. However, after long-term use, impurities in the sewage will clog the filter media of the filtration unit, causing it to lose its filtration and adsorption functions, which in turn leads to blockage of the water inside the equipment. Therefore, the filter media needs to be replaced regularly.

[0005] Conventional replacement methods require manual entry into the chamber where filter media is loaded to remove the media, clean the chamber, and reload with new media. This method is labor-intensive, creates a harsh environment, and has low replacement efficiency. Utility Model Content

[0006] To address the shortcomings of the prior art, this application provides a domestic sewage treatment device with a relatively simple filter media replacement method and high replacement efficiency.

[0007] To achieve the above objectives, the present invention employs the following technology: A domestic sewage treatment device, comprising: The main housing has a filter media chamber connected to the top of the main housing. The filter module is stacked in the filter media chamber. It includes a filter media frame, which is sealed on all sides, open at the top, and has a screen at the bottom. There are mating blocks at both ends of the top of the filter media frame, and the mating blocks have vertically arranged first strip holes. There are iron blocks on both sides of the top of the filter media frame. The lifting device includes a mounting plate longer than the filter media frame, with movable blocks at both ends that move along the length direction; a mating plate located below the mounting plate and facing the length direction of the mounting plate is provided at the bottom of the movable block for laterally passing through the first strip hole; magnets matching iron blocks are provided on both sides of the mounting plate; when the magnets attract the iron blocks, the mounting plate is aligned with the length direction of the filter media frame, and the mating plate is located at the lower end of the first strip hole; The lifting mechanism includes a rotating rod vertically mounted on the top of the main housing, with a horizontal bar at its upper end. A lifting winch is mounted on the horizontal bar, and its pull rope is connected to the middle of the top surface of the mounting plate.

[0008] The beneficial effects of this utility model are as follows: 1. By setting up filter media frames to fill the filter media, the filter media is set up in modules, which facilitates the transfer of filter media when it is replaced. At the same time, the filter media frames that are hoisted and transferred to the outside of the main box also make it easy for operators to replace the filter media inside. This greatly optimizes the working environment and changes the previous method of manually entering the filter media chamber to replace the filter media, effectively improving the replacement efficiency of filter media. 2. By setting up the lifting plate and connecting rod, and cooperating with the magnetic block to attract the iron block and the locking mechanism to fix the moving block, the two mating plates can automatically enter the corresponding first strip hole and stay in place during the lifting process of the lifting plate. This effectively improves the automation level of the lifting device and the lifting mechanism in lifting the filter media frame, and further improves the filter media replacement efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of the wastewater treatment equipment in an embodiment of this application.

[0010] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0011] Figure 3 This is a schematic diagram of the internal structure of the wastewater treatment equipment in an embodiment of this application.

[0012] Figure 4 This is a schematic diagram of the structure of the filter material frame in an embodiment of this application.

[0013] Figure 5 This is a schematic diagram of the lifting device according to an embodiment of this application.

[0014] Figure 6 This is a diagram showing the fit between the hanger and the filter media frame in an embodiment of this application.

[0015] Figure 7 yes Figure 6 A magnified view of part B in the middle.

[0016] Figure 8 This is a schematic diagram of the structure of the active block in an embodiment of this application.

[0017] Attached reference numerals: 1-Main box, 11-Filter media chamber, 12-Equipment room, 13-Sedimentation tank, 14-Aerobic tank, 15-Anoxic tank, 2-Filter module, 21-Filter media frame, 22-Matching block, 23-Strip hole, 24-Iron block, 3-Lifting device, 31-Mounting plate, 311-Mounting rod, 32-Moving block, 321-Vertical plate, 33-Matching plate, 34-Magnet block, 35-Lifting plate, 36-Connecting rod, 37-Vertical rod, 38-First spring, 39-Second strip hole, 4-Lifting mechanism, 41-Rotating rod, 42-Horizontal rod, 43-Lifting winch, 44-Guide wheel, 5-Locking mechanism, 51-Ratchet, 52-Mounting shaft, 53-Pawl, 54-Torsion spring, 55-Linear mechanism, 6-Second spring. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0019] This application provides a domestic sewage treatment device, such as... Figures 1-6 As shown, it includes: main housing 1, filter module 2, lifting device 3, lifting mechanism 4, etc.

[0020] Among them, such as Figures 1-3 As shown, the main chamber 1 contains a filter media chamber 11 connected to the top of the main chamber 1. One side of the filter media chamber 11 is an equipment room 12, which houses an ultraviolet sterilizer, a water quality testing device, and an aeration pump assembly. On the other side of the filter media chamber 12, a sedimentation tank 13, an aerobic tank 14, and an anoxic tank 15 are arranged sequentially. The anoxic tank 15 typically contains a stirrer to prevent sludge sedimentation. The aerobic tank 14 contains an aeration system and packing material. Each section has connecting ports or water pumps to achieve mixed liquor recirculation. The aerobic tank 14 and the anoxic tank 15 primarily utilize the special effects of different microbial communities under anoxic and aerobic conditions. The system achieves efficient removal of organic matter, nitrogen, and phosphorus. Water treated by the aerobic tank 14 and the anoxic tank 15 enters the sedimentation tank 13, where the activated sludge flocs or detached biofilm are separated from the water, clarifying the supernatant. Part of the settled sludge is returned to the front end of the aerobic tank 14 and the anoxic tank 15 by the sludge return pump to maintain biomass, while part is discharged as excess sludge. Water treated by the sedimentation tank 13 is filtered and adsorbed by the filtration module 2, and then disinfected by the ultraviolet sterilizer. After treatment, the water is discharged after being tested by the water quality testing device to ensure it meets the standards.

[0021] like Figures 1-4As shown, the filter module 2 is stacked in the filter media chamber 11. It includes a filter media frame 21, which is a frame structure formed by welding multiple angle steels. The top of the filter media frame 21 is open for taking out and filling the filter media. The filter media frame 21 is sealed on all sides and has a screen at the bottom to support the filter media and allow the treated water to flow out. The top two ends of the filter media frame 21 are provided with mating blocks 22. One side of the block has a vertically arranged strip hole 23 that runs through the length of the filter media frame 21. Two iron blocks 24 are provided on both sides of the top of the filter media frame 21.

[0022] like Figures 5-8 As shown, the hanger 3 includes a mounting plate 31 with a length longer than the filter media frame 21. Both ends of the mounting plate 31 have second strip-shaped holes 39 arranged along its length. Movable blocks 32 are movably positioned within the second strip-shaped holes 39 along the length of the mounting plate 31. A vertical plate 321 is vertically connected to the bottom of the movable block 32, with its lower end located below the mounting plate 31 and connected to a horizontally arranged mating plate 33. The mating plates 33 at the lower ends of the two vertical plates 321 face the length direction of the mounting plate 1 and are arranged opposite each other, allowing them to pass laterally through the corresponding first strip-shaped holes 23. Two mounting rods 311 are connected to both sides of the mounting plate 31, arranged along its width. Each mounting rod 311 has a vertically downward-facing magnet 34 at its end, with each magnet 34 corresponding to a corresponding iron block 24. When each magnet 34 is attracted to its corresponding iron block 24, the mounting plate 31 is aligned with the length direction of the filter media frame 21, and the mating plate 33 is located below the first strip-shaped hole 23.

[0023] like Figure 1 and Figure 2 As shown, the lifting mechanism 4 includes a rotating rod 41 vertically mounted on the top of the main housing 1 and located on one side of the filter material chamber 11. The rotating rod 41 is rotatable around its own axis. A crossbar 42 is provided at the upper end of the rotating rod 41. A lifting winch 43 is provided on the crossbar 42. Its pull rope passes through a guide wheel 44 located at the end of the crossbar 42 and is vertically connected to the middle of the top surface of the mounting plate 31. Both the lifting winch 43 and the rotating rod 41 are driven by a motor.

[0024] When changing the filter media, such as Figures 1-6As shown, first rotate the rotating rod 41 until the mounting plate 31 is directly above the filter media chamber 11, with the two movable blocks 32 located at opposite ends of the mounting plate 31, meaning the distance between the two movable blocks 32 is greater than the length of the filter media frame 21; then, the lifting winch 43 lowers the pull rope. As the pull rope lowers, the mounting plate 31 descends vertically until each magnet 34 on both sides of the mounting plate 31 attracts its corresponding iron block 24. At this point, the length direction of the mounting plate 31 is aligned with that of the filter media frame 21, and the mounting plate 31 is located in the center of both sides of the filter media frame 21, with the mating plate 33 located at the lower end of the first strip hole 23; the two movable blocks 32 open... The mounting plate 1 moves closer together along its length, causing the two mating plates 33 to pass laterally from both ends of the filter media frame 21 into the corresponding first strip hole 23. The lifting winch 43 winds up the rope, and the mounting plate 31 rises vertically. Since the attraction of the magnet 34 to the iron block 24 is insufficient to lift the filter media frame 21 and the filter media filled inside, the tension will cause the magnet 34 to separate from the iron block 24 when the mounting plate 31 rises vertically. At the same time, since the mating plates 33 have entered the first strip hole 23, when the mounting plate 31 rises, the mating plates 33 will move up to abut the upper end of the first strip hole 23 and lift the filter media frame 21.

[0025] After the lifting winch 43 lifts the filter media frame 21 out of the filter media chamber 11, the rotating rod 41 rotates until the filter media frame 21 moves to one side of the main housing 1. Then, the lifting winch 43 lowers the pull rope to place the filter media frame 21 on the ground on one side of the main housing 1. The two movable blocks 32 separate in opposite directions, causing the mating plate 33 to disengage from the first strip hole 23, thereby separating the lifting device 3 from the filter media frame 21. The above operation is repeated until all the filter media frames 21 in the filter media chamber 11 are removed. At this time, the operator can remove and replace the filter media outside the filter media chamber 11, which greatly optimizes the operator's working environment. The filter media frame 21 with the replaced filter media is then lifted into the filter media chamber 11 by the lifting device 3 and the lifting mechanism 4 and stacked. The connection and separation of the lifting device 3 and the filter media frame 21 are the same as the above operation.

[0026] By setting up filter media frames 21 to fill the filter media, the filter media is modularly arranged, which facilitates the transfer of filter media during replacement. Simultaneously, the filter media frames 21, hoisted and transferred to the outside of the main housing 1, also facilitate the replacement of the filter media by operators, significantly optimizing the working environment and changing the previous method of manually entering the filter media chamber 11 for replacement, effectively improving the replacement efficiency. During hoisting, the magnet 34 is used to attract the iron block 24, which allows for quick positioning of the mounting plate 31, facilitating the accurate insertion of the mating plate 33 into the corresponding first slot 23. With the cooperation of the mating plate 33 and the first slot 23, and the action of the hoisting mechanism 4, the filter media frames 21 are stably transferred, further improving the replacement efficiency.

[0027] Specifically, such as Figures 4-6As shown, the lifting device 3 also includes a lifting plate 35 and two connecting rods 36 arranged in the same direction above the middle of the mounting plate 31. The two ends of each connecting rod 36 are rotatably connected to the corresponding movable block 32 and the end of the lifting plate 35, respectively. The rotation axes corresponding to the two ends of the connecting rod 36 are arranged in the width direction of the mounting plate 31. The lifting plate 35, connecting rods 36 and mounting plate 31 are arranged in an isosceles trapezoidal shape. A vertical rod 37 that passes through the middle of the middle of the bottom surface of the lifting plate 35 is connected to the middle of the mounting plate 1. The end of the rod is provided with a mounting platform. A first spring 38 is sleeved on the vertical rod 37 and is connected between the bottom of the mounting plate 31 and the mounting platform. When the first spring 38 is in its natural state, the movable block 32 is located at both ends of the mounting plate 31, and the distance between the two mating plates 33 is greater than the distance between the two mating blocks 22. The pull rope of the lifting winch 43 is connected to the middle of the top surface of the lifting plate 35. Both ends of the mounting plate 31 are provided with locking mechanisms 5 for fixing the movable block 32.

[0028] In application, when the lifting winch 43 lowers the mounting plate 31 until the magnet 34 is attracted to the corresponding iron block 24, the two mating blocks 22 are located between the two mating plates 33. The lifting winch 43 pulls the lifting plate 35 up. At this time, the filter media frame 21 remains stationary due to its own weight. The mounting plate 31 also remains stationary due to the attraction of the magnet 34 to the iron block 24. The first spring 38 is compressed, and the two movable blocks 32 move closer to each other synchronously under the action of the two connecting rods 36. This causes the two mating plates 33 to enter the corresponding first slot 23. As the lifting plate 35 rises to a predetermined distance, the force of the mounting plate 31 rising is greater than the attraction of the magnet 34 to the iron block 24. The magnet 34 separates from the iron block 24, and the locking mechanism 5 also locks the movable blocks 32 synchronously. At this time, the lifting plate 35, connecting rods 36, and mounting plate 31 form a stable isosceles trapezoidal structure. The mating plate 33 rises to abut the upper end of the first slot 23 to lift the filter media frame 21. When it is necessary to separate the lifting device 3 from the filter media frame 21, the filter media frame 21 is transferred to the ground, and the lifting plate 35 is lowered further, so that the mating plate 33 is located between the upper and lower ends of the first strip hole 23. Then, the locking mechanism 5 releases the movable block 32, the first spring 38 returns to its natural state, the two movable blocks 32 separate back to both ends of the mounting plate 31, and both mating plates 33 are dislodged from the first strip hole 23, thereby realizing the separation of the lifting device 3 from the filter media frame 21.

[0029] By setting up the lifting plate 35 and connecting rod 36, and cooperating with the magnetic block 34 to attract the iron block 24 and the locking mechanism 5 to fix the movable block 32, the two mating plates 33 can automatically enter the corresponding first strip hole 23 and be held during the rising process of the lifting plate 35. This effectively improves the automation level of the lifting device 3 cooperating with the lifting mechanism 4 to lift the filter media frame 21, and further improves the filter media replacement efficiency. At the same time, by releasing the movable block 32 through the locking mechanism 5 and cooperating with the first spring 38, the lifting device 3 and the filter media frame 21 can be quickly separated in preparation for the transfer of the next filter media frame.

[0030] Specifically, such as Figures 4-8 As shown, the locking mechanism 5 includes two ratchet racks 51 arranged along the length of the mounting plate 31 and movable along their own length to engage with the mounting plate 31; one end of each ratchet rack 51 is connected to a corresponding movable block 32, and its teeth are arranged vertically upward; above each of the two ratchet racks 51, there is a mounting shaft 52 arranged along the width of the mounting plate 31, on which a pawl 53 is rotatably mounted, and the mounting shaft 52 is located between the two ends of the pawl 53; a torsion spring 54 is provided on the mounting shaft 52 to engage one end of the pawl 53 with the ratchet rack 51 to prevent the movable block 32 from moving towards the corresponding end of the mounting plate 31; above the other end of each of the two pawls 53, there is a linear mechanism 55, whose movable end is vertically downward, used to press down the other end of the pawl 53 to disengage one end from the ratchet rack 51. The linear mechanism 55 can be in the form of a linear cylinder, an electric push rod, etc.

[0031] In application, under the action of the torsion spring 54, one end of the pawl 53 engages with the ratchet rack 51. When the magnet 34 attracts the iron block 24 and the lifting plate 35 moves upward, the engagement of the pawl 53 and the ratchet rack 51 allows the two movable blocks 32 to move in one direction, that is, allows the two movable blocks 32 to move closer to each other. When the tension on the mounting plate 31 is greater than the attraction of the magnet 34 to the iron block 24, the mounting plate 31 separates from the filter media frame 21, the first spring 38 extends, and there is a tendency to drive the two movable blocks 32 to separate in opposite directions. However, the engagement of the pawl 53 and the ratchet rack 51 restricts the two movable blocks 32 from separating in opposite directions, thereby achieving the simultaneous separation of the mounting plate 31 from the filter media frame 21 and fixing the movable blocks 32, which is beneficial to improving the reliability of the lifting device.

[0032] When it is necessary to separate the lifting device 3 from the filter material frame 21, simply move the mating plate 33 between the two ends of the first strip hole 23, drive the first linear mechanism 55 to press down the other end of the pawl 53, so that one end of it disengages from the ratchet rack 51, and the mating plate 33 will automatically disengage from the first strip hole 23 under the action of the first spring.

[0033] Preferred, such as Figure 5 As shown, a second spring 6 is provided between each of the two movable blocks 32 and the end of the corresponding second strip hole 39, connecting the movable block 32 and the end of the corresponding second strip hole 39; when the second spring 6 is in its natural state, the movable block 32 is located at the end of the mounting plate 31. Under the combined action of the second spring 6 and the first spring 38, the mating plate 33 can disengage from the corresponding first strip hole 23 more quickly.

[0034] Preferred, such as Figure 7 As shown, rack frames can be provided on both sides of the second strip hole 39, and the ratchet 51 is slidably engaged in the rack frame to ensure stable engagement between the ratchet 51 and the pawl 53.

[0035] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A domestic sewage treatment device, characterized in that, include: The main housing (1) has a filter material chamber (11) connected to the top of the main housing (1). The filter module (2) is stacked in the filter media chamber (11). It includes a filter media frame (21), which is sealed on all sides, open at the top, and has a screen at the bottom. The filter media frame (21) has mating blocks (22) at both ends of the top. The mating blocks (22) have vertically arranged first strip holes (23). The filter media frame (21) has iron blocks (24) on both sides of the top. The lifting device (3) includes a mounting plate (31) longer than the filter media frame (21), with movable blocks (32) at both ends that move along the length direction; the bottom of the movable block (32) is provided with a mating plate (33) located below the mounting plate (31) and facing the length direction of the mounting plate (1), for laterally passing through the first strip hole (23); the mounting plate (31) is provided with magnet blocks (34) on both sides that match the iron block (24); when the magnet block (34) attracts the iron block (24), the mounting plate (31) is aligned with the length direction of the filter media frame (21), and the mating plate (33) is located at the lower end of the first strip hole (23); The lifting mechanism (4) includes a rotating rod (41) vertically mounted on the top of the main box (1), with a horizontal bar (42) at its upper end. A lifting winch (43) is mounted on the horizontal bar (42), and its pull rope is connected to the middle of the top surface of the mounting plate (31).

2. The domestic sewage treatment equipment according to claim 1, characterized in that, The lifting device (3) also includes a lifting plate (35) and two connecting rods (36) arranged in the same direction above the middle of the mounting plate (31). The two ends of each connecting rod (36) are rotatably connected to the corresponding movable block (32) and the end of the lifting plate (35). The lifting plate (35), connecting rods (36) and mounting plate (31) are arranged in an isosceles trapezoidal shape. The bottom surface of the lifting plate (35) is connected to a vertical rod (37) that passes through the middle of the mounting plate (1). The end of the rod is provided with a mounting platform. A first spring (38) is sleeved on the vertical rod (37) and is connected between the bottom of the mounting plate (31) and the mounting platform. The pull rope of the lifting winch (43) is connected to the middle of the top surface of the lifting plate (35). Both ends of the mounting plate (31) are provided with locking mechanisms (5) for fixing the movable block (32).

3. The domestic sewage treatment equipment according to claim 2, characterized in that, The locking mechanism (5) includes two ratchet racks (51) arranged along the length of the mounting plate (31) and moving along their own length to engage with the mounting plate (31); one end of each ratchet rack (51) is connected to a corresponding movable block (32), and its tooth surface is arranged vertically upward; above each of the two ratchet racks (51) is a mounting shaft (52) arranged along the width of the mounting plate (31), on which a pawl (53) is rotatably mounted, and the mounting shaft (52) is located between the two ends of the pawl (53); a torsion spring (54) is provided on the mounting shaft (52) to engage one end of the pawl (53) with the ratchet rack (51) to prevent the movable block (32) from moving toward the corresponding end of the mounting plate (31).

4. A domestic sewage treatment device according to claim 3, characterized in that, A linear mechanism (55) is mounted above the other end of each of the two pawls (53), with its movable end pointing vertically downwards, used to press down on the other end of the pawl (53) to disengage one end from the ratchet rack (51).

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