Multi-stage wastewater sedimentation tank

Abstract

The utility model relates to water treatment, and provides a multi-stage wastewater sedimentation tank which comprises a tank body, a plurality of partition plates arranged in the tank body, through holes formed in the partition plates, a water inlet pipe connected with one end of the tank body, and a water drainage pipe connected with the other end of the tank body, the plurality of partition plates are distributed along the length direction of the tank body; the heights of the through holes are sequentially reduced in the direction from the water inlet pipe to the water outlet pipe. The multi-stage wastewater sedimentation tank disclosed by the utility model can be used for efficiently precipitating wastewater.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a multi-stage wastewater sedimentation tank. Background Art

[0002] Sewage treatment is a very important part of environmental governance. Sewage treatment not only includes the treatment of urban domestic water, industrial wastewater, etc., but also includes wastewater generated during the construction of construction sites and roads. The wastewater contains a large amount of cement, sand, gravel, alkali and other substances. If discharged directly, it will not only enter the city’s sewers, but also flow directly into nearby rivers and lakes, causing serious pollution to their waters.

[0003] Therefore, it is very necessary to treat construction wastewater before discharging it. The common treatment method is to use corresponding agents to precipitate impurities in the wastewater, and then precipitate them in a sedimentation tank. However, the existing sedimentation tanks cannot be made too large due to limited space, and wastewater is continuously generated. Therefore, traditional sedimentation tanks cannot precipitate wastewater well, which easily leads to direct discharge of wastewater without sufficient precipitation. Therefore, a more efficient wastewater sedimentation device can be designed. Utility Model Content

[0004] The utility model aims to provide a multi-stage wastewater sedimentation tank, which can efficiently precipitate wastewater.

[0005] The embodiments of the utility model are realized through the following technical scheme: the multi-stage wastewater sedimentation tank of the utility model comprises a tank body, a plurality of partitions arranged in the tank body, through holes opened on the partitions, a water inlet pipe connected to one end of the tank body, and a drainage pipe connected to the other end of the tank body; the plurality of partitions are distributed along the length direction of the tank body; along the direction from the water inlet pipe to the drainage pipe, the height of the through holes decreases successively.

[0006] Furthermore, a partition is provided with a pair of through holes, and the pair of through holes are respectively provided at two ends of the partition.

[0007] Furthermore, a baffle is provided at each of the pair of through holes, and the pair of baffles are connected by a connecting rod, and the connecting rod is connected to a driving device for driving the connecting rod to move in a horizontal direction.

[0008] Furthermore, the driving device comprises a horizontally arranged electric telescopic cylinder, a cylinder body of the electric telescopic cylinder is fixedly connected to the partition, and a telescopic rod of the electric telescopic cylinder is connected to the connecting rod.

[0009] Furthermore, L-shaped sliding bars are provided on both upper and lower sides of the through hole, and the side edges of the baffle are slidably arranged in the sliding bars.

[0010] Furthermore, it also includes a connecting pipe, which is used to connect the through holes of adjacent partitions.

[0011] Furthermore, both ends of the connecting pipe are hard pipe parts, and the hard pipe parts are detachably inserted into the through holes; the middle part of the connecting pipe is a soft pipe part.

[0012] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: the multi-stage wastewater sedimentation tank of the utility model, when in use, sends sewage into the tank body through the water inlet pipe, and the partition in the tank body divides the tank body into multiple sedimentation chambers, the sewage gradually settles in the sedimentation chambers, and flows step by step in different sedimentation chambers through the through holes on the partitions, and by setting through holes with gradually decreasing heights, the sewage can flow naturally under the action of gravity and finally be discharged through the drain pipe, which can not only effectively prolong the residence time of the sewage in the tank body, but also by setting through holes on the partitions, the sewage can flow in the tank body more dispersedly, so that the impurities in the sewage can be precipitated as much as possible, thereby improving the sedimentation and purification efficiency of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic structural diagram of a multi-stage wastewater sedimentation tank from one perspective provided by an embodiment of the utility model;

[0015] Figure 2 A schematic structural diagram of a multi-stage wastewater sedimentation tank from two perspectives provided in an embodiment of the utility model;

[0016] Figure 3 For along Figure 2 Sectional view along AA direction;

[0017] Figure 4 For along Figure 2 Cross-sectional view along the BB direction;

[0018] Figure 5 A schematic diagram of the structure of another state of the multi-stage wastewater sedimentation tank provided by an embodiment of the utility model;

[0019] Figure 6 A schematic structural diagram of the connecting pipe part provided in an embodiment of the utility model.

[0020] Icons: 11-tank body, 12-liquid inlet pipe, 13-liquid discharge pipe, 14-sedimentation tank, 21-partition, 22-through hole, 23-baffle, 24-connecting rod, 25-electric telescopic cylinder, 26-slide bar, 30-connecting pipe, 31-hose part, 32-hard pipe part. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 6 As shown, the multi-stage wastewater sedimentation tank 14 of this embodiment includes a tank body 11, a plurality of partitions 21 arranged in the tank body 11, through holes 22 opened on the partitions 21, a water inlet pipe connected to one end of the tank body 11, and a drainage pipe connected to the other end of the tank body 11; the plurality of partitions 21 are distributed along the length direction of the tank body 11; and the height of the through holes 22 decreases successively from the water inlet pipe to the drainage pipe. Specifically, when in use, the sewage is sent into the tank body 11 through the water inlet pipe, and the partition 21 in the tank body 11 divides the tank body 11 into a plurality of sedimentation chambers. The sewage gradually settles in the sedimentation chambers and flows step by step in different sedimentation chambers through the through holes 22 on the partition 21. By setting the through holes 22 with gradually decreasing heights, the sewage can flow naturally under the action of gravity and finally be discharged through the drain pipe. This can not only effectively prolong the residence time of the sewage in the tank body 11, but also by setting the through holes 22 on the partition 21, the sewage can flow in the tank body 11 more dispersedly, so that the impurities in the sewage can be precipitated as much as possible, thereby improving the sedimentation and purification efficiency of the sewage.

[0028] In this embodiment, a partition 21 is provided with a pair of through holes 22, and the pair of through holes 22 are respectively provided at both ends of the partition 21. A baffle 23 is provided at each of the pair of through holes 22, and the pair of baffles 23 are connected by a connecting rod 24, and the connecting rod 24 is connected to a driving device for driving the connecting rod 24 to move in a horizontal direction. The driving device includes a horizontally arranged electric telescopic cylinder 25, the cylinder body of the electric telescopic cylinder 25 is fixedly connected to the partition 21, and the telescopic rod of the electric telescopic cylinder 25 is connected to the connecting rod 24. Specifically, by providing a pair of through holes 22 on the partition 21, and driving the baffle 23 to move by a driving device, the through hole 22 can be opened or closed by the baffle 23, so that by opening / closing the through hole 22 at intervals, the sewage can flow in the tank body 11 in an S shape, and the residence time of the sewage in the tank body 11 can be increased as much as possible, and the sedimentation efficiency is improved. Since the flow of sewage will cause the sediment to be concentrated near the through hole 22, and then cause the sediment to accumulate at the through hole 22, the pair of through holes 22 on the partition 21 can be intermittently opened / closed, so that the sewage can intermittently pass through the two through holes 22, and the sediment can be avoided as much as possible from accumulating at one end of the partition 21, so that the sediment can be more dispersedly distributed in the tank body 11. The movement of the baffle 23 is driven by the connecting rod 24 and the electric telescopic rod.

[0029] In this embodiment, L-shaped slide bars 26 are provided on both upper and lower sides of the through hole 22, and the side of the baffle 23 is slidably arranged in the slide bars 26. Specifically, this not only enables the baffle 23 to move horizontally more stably, but also enables the baffle 23 to fit the partition 21 more closely and block the through hole 22 better.

[0030] In this embodiment, a connecting pipe 30 is also included. The connecting pipe 30 is used to connect the through holes 22 of adjacent partitions 21. The two ends of the connecting pipe 30 are hard pipe parts 32, and the hard pipe parts 32 are detachably inserted into the through holes 22; the middle part of the connecting pipe 30 is a soft pipe part 31. Figure 5-6 As shown, the connecting pipe 30 is mainly used for cleaning the sedimentation tank 14. By connecting the connecting pipe 30 to the through hole 22 of the adjacent partition 21, the sewage can flow through the connecting pipe 30, thereby not passing through the sedimentation tank 14 between the two partitions 21. At this time, the sedimentation tank 14 can be cleaned, so that the sedimentation tank 14 in the tank body 11 can be cleaned step by step without stopping the sedimentation, and it can also avoid the sediment floating in the water when cleaning the sedimentation tank 14 and flowing into the lower sedimentation tank 14.

[0031] In summary, the multi-stage wastewater sedimentation tank 14, when in use, delivers sewage into the tank body 11 through the water inlet pipe, and the partition 21 in the tank body 11 divides the tank body 11 into a plurality of sedimentation chambers, and the sewage gradually settles in the sedimentation chambers, and flows step by step in different sedimentation chambers through the through holes 22 on the partition 21, and by setting the through holes 22 with gradually decreasing heights, the sewage can flow naturally under the action of gravity and finally be discharged through the drain pipe, which can not only effectively prolong the residence time of the sewage in the tank body 11, but also by setting the through holes 22 on the partition 21, the sewage can flow in the tank body 11 more dispersedly, so that the impurities in the sewage can be precipitated as much as possible, thereby improving the sedimentation and purification efficiency of the sewage.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage wastewater sedimentation tank (14), characterized in that: It comprises a pool body (11), a plurality of partitions (21) arranged in the pool body (11), through holes (22) opened on the partitions (21), a water inlet pipe connected to one end of the pool body (11), and a drain pipe connected to the other end of the pool body (11); The plurality of partitions (21) are distributed along the length direction of the pool body (11); and along the direction from the water inlet pipe to the drain pipe, the height of the through hole (22) decreases sequentially.

2. The multi-stage wastewater sedimentation tank (14) according to claim 1, characterized in that: A partition plate (21) is provided with a pair of through holes (22), and the pair of through holes (22) are respectively arranged at two ends of the partition plate (21).

3. The multi-stage wastewater sedimentation tank (14) according to claim 2, characterized in that: A baffle (23) is provided at each of the pair of through holes (22); the pair of baffles (23) are connected via a connecting rod (24); and the connecting rod (24) is connected to a driving device for driving the connecting rod (24) to move in a horizontal direction.

4. The multi-stage wastewater sedimentation tank (14) according to claim 3, characterized in that: The driving device comprises a horizontally arranged electric telescopic cylinder (25), a cylinder body of the electric telescopic cylinder (25) is fixedly connected to the partition plate (21), and a telescopic rod of the electric telescopic cylinder (25) is connected to the connecting rod (24).

5. The multi-stage wastewater sedimentation tank (14) according to claim 3, characterized in that: L-shaped slide bars (26) are provided on both upper and lower sides of the through hole (22), and the side edge of the baffle (23) is slidably arranged in the slide bars (26).

6. The multi-stage wastewater sedimentation tank (14) according to claim 1, characterized in that: It also comprises a connecting pipe (30), wherein the connecting pipe (30) is used to connect the through holes (22) of adjacent partitions (21).

7. The multi-stage wastewater sedimentation tank (14) according to claim 6, characterized in that: Both ends of the connecting pipe (30) are hard pipe parts (32), and the hard pipe parts (32) are detachably inserted into the through hole (22); the middle part of the connecting pipe (30) is a soft pipe part (31).

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