A subsidence type sewage plant sewage pretreatment device

Abstract

The utility model discloses a sinking sewage plant's sewage pretreatment device, including treatment pond, the middle part of treatment pond is equipped with the baffle, both ends of baffle all are fixed with treatment pond pool wall, the bottom of baffle is equipped with the through slot, baffle divides treatment pond into the cleaning area and the settlement area, the top of cleaning area is connected with the water inlet, the settlement area is equipped with the waste outlet, the water outlet, the water outlet is higher than the waste outlet, the water outlet is lower than the water inlet, the cleaning area is equipped with the cleaning unit, both sides in the middle part of baffle are equipped with the waste hole, the waste hole is connected with the waste pipe, the waste pipe is connected with the waste outlet, the utility model discloses sinking sewage plant's sewage pretreatment device adopts the baffle and divides treatment pond into the cleaning area and the settlement area, makes floating garbage accumulate in the cleaning area, and cooperates the cleaning unit, and the floating garbage is scraped into the waste cover and is matched, avoids the garbage and blocks the pipeline.

Description

Technical Field

[0001] This utility model relates to water treatment technology, specifically a wastewater pretreatment device for a submerged wastewater treatment plant. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly entering the daily lives of ordinary people. Wastewater treatment can use biochemical reactions to purify wastewater, thus requiring biochemical equipment.

[0003] The existing sunken sewage treatment plant is located in the basement space. The sewage in the river is treated in multiple stages and then flows back into the river. However, a large amount of floating garbage remains in the sewage in the river, which causes the existing treatment equipment and pipelines to be blocked by floating garbage, resulting in a decrease in sewage treatment flow and greatly affecting water treatment efficiency. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a sewage pretreatment device for a submerged sewage treatment plant, which can separate floating garbage from river sewage and prevent garbage from clogging the pipeline.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: a sewage pretreatment device for a submerged sewage treatment plant, comprising a treatment tank, a partition plate in the middle of the treatment tank, both ends of the partition plate being fixed to the tank wall, a through groove at the bottom of the partition plate, the partition plate dividing the treatment tank into a cleaning zone and a settling zone, an inlet connected to the top of the cleaning zone, a waste discharge outlet and a drain outlet in the settling zone, the drain outlet being higher than the waste discharge outlet and lower than the inlet, a cleaning unit in the cleaning zone, and waste discharge holes on both sides of the middle of the partition plate, the waste discharge holes being connected to a waste discharge pipe, and the waste discharge pipe being connected to the waste discharge outlet.

[0006] Preferably, the treatment pool is circular.

[0007] Preferably, the cleaning unit includes a cleaning plate, a motor, and a reducer. The motor and the reducer are both fixed to the top of the treatment tank. The motor drives the rotating shaft to rotate through the reducer. The rotating shaft extends vertically downward into the cleaning area. The cleaning plate is fixed to the bottom of the rotating shaft and is arranged perpendicular to the rotating shaft.

[0008] Preferably, the cleaning plate, drain outlet, and waste discharge hole are all located at the same height.

[0009] Preferably, a waste discharge hood is provided on the side of the waste discharge hole away from the cleaning plate, the waste discharge hood is connected to the waste discharge pipe, and the size of the waste discharge hood gradually decreases from the side facing the partition plate to the side facing the waste discharge pipe.

[0010] Preferably, the waste discharge pipe is inclined downwards.

[0011] Preferably, the cleaning area is provided with a baffle at the top, and the baffle is directly opposite the water inlet.

[0012] Preferably, the bottom of the baffle is inclined toward the water inlet.

[0013] Preferably, the bottom of the settling zone is provided with a sludge discharge port.

[0014] In summary, this utility model achieves the following technical effects:

[0015] The wastewater pretreatment device of the submerged wastewater treatment plant of this utility model uses a partition to divide the treatment tank into a cleaning zone and a settling zone, so that floating garbage accumulates in the cleaning zone. With the help of the cleaning unit, the floating garbage is scraped into the waste discharge hood and discharged, thus avoiding garbage blockage of the pipeline. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the wastewater pretreatment device of the submerged wastewater treatment plant according to this utility model;

[0017] Figure 2 This is a top view of the wastewater pretreatment device of the submerged wastewater treatment plant according to this utility model;

[0018] Explanation of the markings on the attached drawings: 1. Treatment tank; 2. Baffle; 3. Cleaning area; 4. Settling area; 5. Inlet; 6. Baffle; 7. Drain outlet; 8. Sludge outlet; 9. Motor; 10. Cleaning plate; 11. Waste discharge pipe; 12. Waste discharge port; 13. Waste discharge hood. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example 1:

[0026] like Figure 1As shown in Figure 2, a wastewater pretreatment device for a submerged wastewater treatment plant includes a treatment tank 1. A partition 2 is provided in the middle of the treatment tank 1. Both ends of the partition 2 are fixed to the tank wall of the treatment tank 1. A through groove is provided at the bottom of the partition 2. The partition 2 divides the treatment tank 1 into a cleaning zone 3 and a settling zone 4. The top of the cleaning zone 3 is connected to an inlet 5. The settling zone 4 is provided with a waste discharge outlet 12 and a drain outlet 7. The drain outlet 7 is higher than the waste discharge outlet 12 and lower than the inlet 5. The cleaning zone 3 is provided with a cleaning unit. Waste discharge holes are provided on both sides of the middle of the partition 2. The waste discharge holes are connected to a waste discharge pipe 11. The waste discharge pipe 11 is connected to the waste discharge outlet 12.

[0027] In this embodiment, the wastewater pretreatment device of the submerged wastewater treatment plant uses a partition 2 to divide the treatment tank 1 into a cleaning zone 3 and a settling zone 4. This allows floating debris to accumulate in the cleaning zone 3. In conjunction with the cleaning unit, the floating debris is scraped into the waste discharge hood 13 for discharge, preventing debris from clogging the pipes. Moreover, the settling zone 4 can stabilize the wastewater flow rate, allowing suspended particulate matter in the wastewater to settle to the bottom of the treatment tank 1 and be periodically discharged through the sludge discharge port 8.

[0028] The treatment pool 1 is circular; the cleaning unit includes a cleaning plate 10, a motor 9 and a reducer. The motor 9 and the reducer are both fixed to the top of the treatment pool 1. The motor 9 drives the rotating shaft to rotate through the reducer. The rotating shaft extends vertically downward into the cleaning area 3. The cleaning plate 10 is fixed to the bottom of the rotating shaft and is set perpendicular to the rotating shaft. The circular shape of the treatment pool 1 makes it easy for the cleaning plate 10 to rotate and sweep across the maximum area, scraping as much garbage as possible into the waste discharge hood 13.

[0029] The cleaning plate 10, drain outlet 7, and waste discharge hole are all located at the same height, and the waste discharge pipe 11 is inclined downwards. This arrangement allows the cleaning plate 10 to effectively clean floating garbage and scrape some sewage into the waste discharge pipe 11, so that the floating garbage can fall smoothly and be discharged from the waste discharge outlet 12. Moreover, when the sewage flow is large, the sewage can overflow from the waste discharge pipe 11, avoiding damage to the treatment tank 1.

[0030] The waste discharge hole is provided with a waste discharge cover 13 on the side away from the cleaning plate 10. The waste discharge cover 13 is connected to the waste discharge pipe 11. The size of the waste discharge cover 13 gradually decreases from the side facing the partition plate 2 to the side facing the waste discharge pipe 11.

[0031] The cleaning zone 3 is equipped with a baffle 6 at the top, which is directly opposite the water inlet 5. The baffle 6 can reduce the impact of sewage flowing into the water inlet 5 and prevent the water in the cleaning zone 3 from mixing violently, thus affecting the normal operation of the cleaning unit.

[0032] The bottom of the baffle 6 is inclined toward the water inlet 5.

[0033] The bottom of the settling zone 4 is provided with a mud discharge port 8.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A wastewater pretreatment device for a submerged wastewater treatment plant, characterized in that, The system includes a treatment tank with a partition in the middle. Both ends of the partition are fixed to the tank wall. The bottom of the partition has a through groove. The partition divides the treatment tank into a cleaning zone and a settling zone. The top of the cleaning zone is connected to a water inlet. The settling zone has a waste discharge outlet and a drain outlet. The drain outlet is higher than the waste discharge outlet and lower than the water inlet. The cleaning zone has a cleaning unit. Waste discharge holes are provided on both sides of the middle of the partition. The waste discharge holes are connected to a waste discharge pipe, and the waste discharge pipe is connected to the waste discharge outlet.

2. The wastewater pretreatment device for a submerged wastewater treatment plant according to claim 1, characterized in that, The treatment pool is circular.

3. The wastewater pretreatment device for a submerged wastewater treatment plant according to claim 2, characterized in that, The cleaning unit includes a cleaning plate, a motor, and a reducer. The motor and reducer are both fixed to the top of the treatment tank. The motor drives the rotating shaft to rotate through the reducer. The rotating shaft extends vertically downward into the cleaning area. The cleaning plate is fixed to the bottom of the rotating shaft and is set perpendicular to the rotating shaft.

4. The wastewater pretreatment device for a submerged wastewater treatment plant according to claim 3, characterized in that, The cleaning plate, drain outlet, and waste discharge hole are all located at the same height.

5. A wastewater pretreatment device for a submerged wastewater treatment plant according to claim 3, characterized in that, The waste discharge hole is provided with a waste discharge cover on the side away from the cleaning plate. The waste discharge cover is connected to the waste discharge pipe. The size of the waste discharge cover gradually decreases from the side facing the partition to the side facing the waste discharge pipe.

6. The wastewater pretreatment device for a submerged wastewater treatment plant according to claim 1, characterized in that, The waste discharge pipe is installed at an angle downwards.

7. The wastewater pretreatment device for a submerged wastewater treatment plant according to claim 1, characterized in that, The cleaning area is equipped with a baffle at the top, which faces the water inlet.

8. A wastewater pretreatment device for a submerged wastewater treatment plant according to claim 7, characterized in that, The bottom of the baffle is inclined toward the water inlet.

9. A wastewater pretreatment device for a submerged wastewater treatment plant according to claim 1, characterized in that, The bottom of the settling zone is equipped with a mud discharge port.

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