Domestic sewage treatment tank

Abstract

The utility model discloses a domestic sewage treatment pool, and particularly relates to the technical field of sewage treatment equipment, the domestic sewage treatment pool comprises a sewage pool, the middle part of the upper end of the sewage pool and an inner cavity of the sewage pool are jointly provided with a stirring structure, and the bottom end of the sewage pool is fixedly connected with a sediment treatment structure; the bottom end of the sewage pool and the bottom of the inner cavity are jointly and fixedly connected with an aeration structure, the lower part of the rear part of the outer surface of the sewage pool is fixedly connected with a drainage port, the rear part of the bottom end of the sewage pool is provided with a sludge discharge port, and the inner side of the sludge discharge port is slidably connected with a movable plate. According to the domestic sewage treatment tank disclosed by the utility model, the aeration structure and the stirring structure are matched with each other, so that the reaction rate of a water purification reagent and bacterial colonies in water can be greatly improved, the sewage treatment period is shortened, and the sewage treatment efficiency is improved; foams and grease in water can be filtered through a floating object scraper and a filter box arranged at the upper part of the stirring structure, so that the contact area between the water body and the air is increased, and the influence of the foams and the grease is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a domestic sewage treatment pool. Background Art

[0002] Domestic sewage, as the name suggests, is the sewage generated by people in their daily lives, mainly including fecal sewage, miscellaneous sewage, etc. These sewage generally contain less large garbage, but are mixed with more organic matter, such as protein, animal and plant fats, carbohydrates, urea, ammonia nitrogen, etc. It also contains soapy water, synthetic detergents, pathogenic microorganisms, etc. This type of sewage needs to be treated before it can be discharged into the water body.

[0003] Chinese patent document CN213623593 U discloses a sewage treatment pool, including a pool body, wherein the inner wall of the pool body is fixedly connected to a fixing rod, and there are multiple fixing rods, and an annular guide rail is fixedly connected between the fixing rods, and a filter cartridge is installed inside the pool body, and a slider is fixedly connected to the outer wall of the filter cartridge and connected to the annular guide rail through the slider, and the outer wall of the filter cartridge is fixedly connected to a stirring blade, and there are two stirring blades, and its motor is driven to rotate at its output end, and water in the sewage passes through the filter cartridge and is discharged into the interior of the pool body, while impurities and the like are isolated and filtered inside the filter cartridge by the filter cartridge. Since the filter cartridge rotates continuously during the filtration process, the situation in which impurities block the filter cartridge and affect the filtration efficiency can be avoided, thereby improving the filtration quality, and during the rotation of the filter cartridge, the stirring blade fixed on its outer wall rotates synchronously, which can stir the sewage inside the pool body, and is convenient for accelerating the mixing when adding treatment agents, thereby improving the functionality of the sewage treatment pool.

[0004] Although the equipment in the above-mentioned literature can filter impurities and some particulate matter in sewage, in the actual sewage treatment process, there will be a large amount of suspended mixed liquid in the sewage, and impurities such as silt, particulate matter, etc. will be precipitated. These impurities cannot be filtered by filter cartridges alone, and the treatment of sediments by the above-mentioned equipment requires manual processing, which lacks convenience. Utility Model Content

[0005] The main purpose of the utility model is to provide a domestic sewage treatment pool, which can effectively solve the problems of poor filtering effect and inconvenient sediment treatment of existing equipment.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A domestic sewage treatment pool comprises a sewage pool, wherein a stirring structure is provided at the middle part of the upper end of the sewage pool and the inner cavity of the sewage pool, a sediment treatment structure is fixedly connected to the bottom end of the sewage pool, an aeration structure is fixedly connected to the bottom end of the sewage pool and the bottom of the inner cavity, a drainage outlet is fixedly connected to the lower rear part of the outer surface of the sewage pool, a mud discharge outlet is provided at the rear part of the bottom end of the sewage pool, a movable plate is slidably connected to the inner side of the mud discharge outlet, and legs are fixedly connected to the front and rear parts of the bottom end of the sewage pool in a left-right symmetrical manner.

[0008] Preferably, the stirring structure includes a motor 1, the rear end of the motor 1 is fixedly connected to the upper end of the sewage pool, the output end of the motor 1 is fixedly connected to a driven shaft, the upper portion of the outer surface of the driven shaft is rotatably connected to the upper end of the sewage pool, the upper portion of the outer surface of the driven shaft is symmetrically fixedly connected with floating scrapers facing opposite directions, the direction of the floating scrapers is the same as the rotation direction, the vertical surfaces of the floating scrapers are respectively clamped with filter boxes, the middle portion of the bottom end of the floating scraper is fixedly connected to a support rod, and the left and right ends of the support rod in the horizontal direction are fixedly connected with stirring blades.

[0009] Preferably, the sediment treatment structure includes motor 2, the top end of motor 2 is fixedly connected to the bottom end of the sewage pool, the output end of motor 2 is fixedly connected to gear 1, the middle part of the bottom end of the sewage pool is rotatably connected to gear 2, the outer surface of gear 2 and gear 1 are commonly wound and connected with a transmission belt, the middle part of gear 2 is fixedly connected to a rotating shaft, the rotating shaft passes through the bottom end of the sewage pool and extends to the lower part of the inner cavity of the sewage pool and is fixedly connected to a plurality of scrapers in a ring array, and the inner side of the rotating shaft is rotatably connected to an aeration structure.

[0010] Preferably, the aeration structure includes an air pump, the top of which is fixedly connected to the bottom of the sewage pool, the output end of the air pump is fixedly connected to an air pipe, the outer surface of the air pipe is rotatably connected to the inner side of a rotating shaft, the upper end of the air pipe is fixedly connected to a support pipe, and the upper part of the outer surface of the support pipe is fixedly connected to an aeration assembly.

[0011] Preferably, the scraper blade is an arc-shaped blade, and a shovel blade is fixedly connected to the bottom of the surface of the scraper blade in the rotation direction, and the bottom end of the shovel blade is in close contact with the bottom surface of the inner cavity of the sewage pool.

[0012] Preferably, a semipermeable membrane is fixedly mounted on the inner side of the filter box.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model can greatly improve the reaction rate of water purification reagents and bacteria colonies in water by arranging an aeration structure and a stirring structure to cooperate with each other, reduce the cycle of sewage treatment, and improve the efficiency of sewage treatment. The floating scraper and filter box arranged on the upper part of the stirring structure can filter the foam and grease floating in the water through the semi-permeable membrane, increase the contact area between the water and the air, and reduce the influence of foam and grease on the reaction rate. After the water purification is completed, the reacted sediment, mud and sand are discharged from the equipment through the mud discharge port by using the mud scraper and shovel at the bottom, which reduces the processing flow of processing the mud and sand deposited on the bottom and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0017] Figure 3 It is a schematic cross-sectional view of the internal structure of the sewage pool of the utility model;

[0018] Figure 4 For the utility model Figure 2 A is an enlarged schematic diagram of the local structure at center A;

[0019] Figure 5 It is a schematic cross-sectional view of the bottom structure of the inner cavity of the sewage pool of the utility model.

[0020] In the figure: 1. sewage pool; 2. stirring structure; 21. motor 1; 22. floating scraper; 23. filter box; 24. support rod; 25. stirring blade; 26. semipermeable membrane; 27. driven shaft; 3. aeration structure; 31. air pump; 32. air pipe 1; 33. support pipe; 34. aeration assembly; 4. sediment treatment structure; 41. motor 2; 42. gear 1; 43. transmission belt; 44. gear 2; 45. rotating shaft; 46. scraper; 47. shovel; 5. support leg; 6. drain outlet; 7. mud outlet; 8. movable plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1As shown, a domestic sewage treatment pool includes a sewage pool 1, a stirring structure 2 is provided at the middle of the upper end of the sewage pool 1 and the inner cavity of the sewage pool 1, a sediment treatment structure 4 is fixedly connected to the bottom end of the sewage pool 1, an aeration structure 3 is fixedly connected to the bottom end of the sewage pool 1 and the bottom of the inner cavity, a drainage outlet 6 is fixedly connected to the lower rear part of the outer surface of the sewage pool 1, a mud discharge outlet 7 is opened at the rear end of the bottom end of the sewage pool 1, a movable plate 8 is slidably connected to the inner side of the mud discharge outlet 7, and legs 5 are fixedly connected to the front and rear of the bottom end of the sewage pool 1 symmetrically.

[0023] During the domestic sewage treatment reaction process, the water body needs to be stirred continuously to allow the chemical reagents to fully react and condense with the impurities in the water body, and some coagulants require oxygen to participate in the reaction process. However, there is a large amount of oil in domestic sewage. These oils will float on the water surface and affect the contact between the water body and the air, which will affect the reaction rate to a certain extent and increase the sewage treatment cycle.

[0024] The utility model can greatly improve the reaction rate of water purification reagents and bacteria in water by arranging the aeration structure 3 and the stirring structure 2 to cooperate with each other, reduce the cycle of sewage treatment, and improve the efficiency of sewage treatment. The floating scraper 22 and the filter box 23 arranged on the upper part of the stirring structure 2 can filter the foam and grease floating in the water through the semipermeable membrane 26, increase the contact area between the water and the air, and reduce the influence of foam and grease on the reaction rate.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown, the stirring structure 2 includes a motor 21, the rear end of the motor 21 is fixedly connected to the upper end of the sewage tank 1, the output end of the motor 21 is fixedly connected to a driven shaft 27, the upper part of the outer surface of the driven shaft 27 is rotatably connected to the upper end of the sewage tank 1, the upper part of the outer surface of the driven shaft 27 is symmetrically fixedly connected to floating scrapers 22 facing oppositely, the direction of the floating scrapers 22 is the same as the rotation direction, the vertical surfaces of the floating scrapers 22 are respectively clamped with filter boxes 23, the middle part of the bottom end of the floating scraper 22 is fixedly connected to a support rod 24, and the left and right ends of the support rod 24 in the horizontal direction are fixedly connected to stirring blades 25.

[0026] When the motor 21 is running, it drives the driven shaft 27 and the floating object scraper 22 on the driven shaft 27 to rotate. At this time, the floating object scraper 22 is half submerged below the water surface. When the floating object scraper 22 rotates, the floating objects on the water surface will follow the floating object scraper 22 into the filter box 23, be filtered by the semi-permeable membrane 26 in the filter box 23, and then be sent back into the water.

[0027] like Figure 4 As shown, a semi-permeable membrane 26 is fixedly installed inside the filter box 23.

[0028] It should be noted that the semipermeable membrane 26 is a water-permeable but oil-impermeable semipermeable membrane, which can filter the grease in the water and temporarily store it in the filter box 23, and can also temporarily store the foam in the filter box 23, thereby reducing the influence of the foam and grease on the reaction rate. At the same time, the filter box 23 is in the form of a snap connection, and can be removed for processing when the semipermeable membrane fails or the content is too much;

[0029] The semipermeable membrane 26 is a common technical means in daily chemistry and production, and is a mature technology in the prior art. In the present utility model, only its oil-proof property is utilized, and its working principle is not elaborated in detail.

[0030] like Figure 2 , Figure 3 , Figure 5 As shown, the sediment treatment structure 4 includes a motor 2 41, the top of the motor 2 41 is fixedly connected to the bottom of the sewage tank 1, the output end of the motor 2 41 is fixedly connected to a gear 1 42, the middle of the bottom of the sewage tank 1 is rotatably connected to a gear 2 44, the outer surfaces of the gear 2 44 and the gear 1 42 are commonly wound and connected with a transmission belt 43, the middle of the gear 2 44 is fixedly connected to a rotating shaft 45, the rotating shaft 45 passes through the bottom of the sewage tank 1 and extends to the lower part of the inner cavity of the sewage tank 1 and is fixedly connected to a plurality of scrapers 46 in a ring array, and the inner side of the rotating shaft 45 is rotatably connected to an aeration structure 3.

[0031] After the reaction is completed, a large amount of coagulants will be deposited at the bottom of the sewage pool 1. In traditional sewage treatment, manual treatment or sludge pumping is generally used for extraction. However, the sludge pump may be blocked or pumped empty when extracting the coagulant sediment. The motor 2 41 of the utility model transmits the power to the rotating shaft 45 through the transmission structure composed of gear 1 42, transmission belt 43, and gear 2 44, so that it drives the scraper 46 to rotate. The shovel 47 provided on the scraper 46 can scrape up the sediment at the bottom. Since the rotating surface of the scraper 46 is an arc surface, the sediment will be driven to move outward while rotating, so as to be discharged into the mud discharge port 7.

[0032] like Figure 2 , Figure 3 As shown, the aeration structure 3 includes an air pump 31, the top of the air pump 31 is fixedly connected to the bottom of the sewage pool 1, the output end of the air pump 31 is fixedly connected to an air pipe 32, the outer surface of the air pipe 32 is rotatably connected to the inner side of the rotating shaft 45, the upper end of the air pipe 32 is fixedly connected to a support pipe 33, and the upper part of the outer surface of the support pipe 33 is fixedly connected to an aeration component 34.

[0033] The aeration component 34 is a conventional technical means in the field of sewage treatment. In the present utility model, only the bubble group generated after aeration is used to stir the water body to increase the reaction rate. Its working principle is not elaborated in detail in the present utility model.

[0034] like Figure 5 As shown, the scraper blade 46 is an arc-shaped blade, and a shovel blade 47 is fixedly connected to the bottom of the surface of the scraper blade 46 in the rotation direction, and the bottom end of the shovel blade 47 is in close contact with the bottom surface of the inner cavity of the sewage pool 1.

[0035] The working principle of the utility model is as follows: the sewage to be treated is sent into the inner cavity of the sewage pool 1 through the opening at the top of the sewage pool 1, the motor 21 and the air pump 31 are started, and the coagulant is added. At this time, the driven shaft 27 drives the support rod 24 and the stirring blade 25 on the floating scraper 22 to stir the water body, and at the same time, the aeration component 34 turns the air into a bubble group and fills it into the water. The support rod 24 and the stirring blade 25 on the upper part of the driven shaft 27 rotate to stir the water body, thereby increasing the reaction rate. At the same time, the floating scraper 22 on the upper part of the driven shaft 27 drives the filter box 23 to rotate on the water surface, and the floating objects such as bubbles and grease generated on the water surface are sent to the filter box 23 through the floating scraper 22 for filtration;

[0036] When the water purification is completed, the purified water is discharged through the drain port 6, the movable plate 8 is pulled out, and then the motor 41 is started. The scraper plate 46 on the rotating shaft 45 is driven by the motor 41 to rotate, and the shovel blade 47 on the scraper plate 46 scoops up the bottom sediment and sends it to the mud discharge port 7 along the rotation direction of the scraper plate 46 for discharge.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A domestic sewage treatment pool, comprising a sewage pool (1), characterized in that: The middle part of the upper end of the sewage pool (1) and the inner cavity of the sewage pool (1) are jointly provided with a stirring structure (2); the bottom end of the sewage pool (1) is fixedly connected with a sediment treatment structure (4); the bottom end of the sewage pool (1) and the bottom of the inner cavity are jointly fixedly connected with an aeration structure (3); the lower rear part of the outer surface of the sewage pool (1) is fixedly connected with a drainage port (6); the rear part of the bottom end of the sewage pool (1) is provided with a mud discharge port (7); the inner side of the mud discharge port (7) is slidably connected with a movable plate (8); the front and rear parts of the bottom end of the sewage pool (1) are both symmetrically fixedly connected with legs (5); The sediment treatment structure (4) comprises a second motor (41), the top of the second motor (41) is fixedly connected to the bottom of the sewage tank (1), the output end of the second motor (41) is fixedly connected to a first gear (42), the middle of the bottom of the sewage tank (1) is rotatably connected to a second gear (44), the outer surfaces of the second gear (44) and the first gear (42) are connected by a transmission belt (43) wound together, the middle of the second gear (44) is fixedly connected to a rotating shaft (45), the rotating shaft (45) passes through the bottom of the sewage tank (1) and extends to the lower part of the inner cavity of the sewage tank (1) and is fixedly connected to a plurality of scraper blades (46) in an annular array, and the inner side of the rotating shaft (45) is rotatably connected to an aeration structure (3).

2. A domestic sewage treatment pool according to claim 1, characterized in that: The stirring structure (2) comprises a motor (21), the rear end of the motor (21) being fixedly connected to the upper end of the sewage pool (1), the output end of the motor (21) being fixedly connected to a driven shaft (27), the upper portion of the outer surface of the driven shaft (27) being rotatably connected to the upper end of the sewage pool (1), the upper portion of the outer surface of the driven shaft (27) being symmetrically fixedly connected to floating scrapers (22) facing in opposite directions, the direction of the floating scrapers (22) being the same as the direction of rotation, the vertical surfaces of the floating scrapers (22) being respectively clamped with filter boxes (23), the middle portion of the bottom end of the floating scraper (22) being fixedly connected to a support rod (24), and the left and right ends of the support rod (24) in the horizontal direction being fixedly connected to stirring blades (25).

3. A domestic sewage treatment pool according to claim 1, characterized in that: The aeration structure (3) comprises an air pump (31), the top end of the air pump (31) is fixedly connected to the bottom end of the sewage pool (1), the output end of the air pump (31) is fixedly connected to an air pipe (32), the outer surface of the air pipe (32) is rotatably connected to the inner side of a rotating shaft (45), the upper end of the air pipe (32) is fixedly connected to a support pipe (33), and the upper part of the outer surface of the support pipe (33) is fixedly connected to an aeration assembly (34).

4. A domestic sewage treatment pool according to claim 1, characterized in that: The scraper blade (46) is an arc-shaped blade, and the bottom of the surface of the scraper blade (46) in the rotation direction is fixedly connected with a shovel blade (47), and the bottom end of the shovel blade (47) is in close contact with the bottom surface of the inner cavity of the sewage pool (1).

5. A domestic sewage treatment pool according to claim 2, characterized in that: A semipermeable membrane (26) is fixedly mounted inside the filter box (23).

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