Sewage treatment sedimentation tank

Abstract

The utility model relates to a sewage treatment sedimentation tank. The sewage treatment sedimentation tank comprises a sedimentation tank assembly and a filter assembly positioned in the sedimentation tank assembly, the sedimentation tank assembly comprises a sedimentation tank, a first-stage sedimentation cavity and a second-stage sedimentation cavity are sequentially arranged in the sedimentation tank from top to bottom, a filtering cavity is arranged in the sedimentation tank above the first-stage sedimentation cavity, a sewage discharging cavity is arranged in the sedimentation tank below the second-stage sedimentation cavity, a water inlet pipeline is arranged on one side of the first-stage sedimentation cavity, and a water outlet pipeline is arranged on the other side of the second-stage sedimentation cavity. And a water outlet pipeline is arranged on one side of the filtering cavity. According to the utility model, the cleaning scrapers in the primary sedimentation cavity and the secondary sedimentation cavity can be driven by the rotating mechanism to clean the sedimentation tank, and then sludge is discharged through the blow-off pipeline, so that time and labor are saved, and the influence of sediments on the service life of the sedimentation tank is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to sewage treatment, in particular to a sewage treatment sedimentation tank. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people. Sewage sedimentation is an important part of sewage treatment and requires the use of sedimentation tanks.

[0003] After massive searches, it was found that the prior art publication number is CN219128380U, which discloses a sewage treatment plant enhanced sedimentation radial flow sedimentation tank, which belongs to the field of sewage treatment technology. This sewage treatment plant enhanced sedimentation radial flow sedimentation tank includes a tank body, a water distribution device and a stirring device. The sedimentation tank can evenly distribute water by setting a water distributor, which effectively solves the problem of poor mud-water separation effect in the central area of ​​the sedimentation tank when the water inflow of the sedimentation tank is large. A plurality of water outlets for upward water discharge are arranged on the water distributor, and an arc-shaped baffle cover is arranged on the upper part of the water outlet, which can change the direction of water flow and reduce the impact force of water flow, thereby effectively alleviating the problem of the impact of the turbulent flow of water on the sludge area at the bottom of the sedimentation tank. A baffle is arranged above the water distributor, and the impact force of the water flow can be further reduced by the action of the inclined plate or inclined tube on the baffle. At the same time, the friction of the inclined plate or inclined tube promotes the sedimentation of sludge particles, effectively enhancing the mud-water separation effect of the sedimentation tank.

[0004] In summary, during the long-term use of existing sedimentation tanks, a large amount of sediment will adhere to the bottom of the sedimentation tank. The general way to deal with these sediments is to empty the sedimentation tank and then place special cleaning equipment in the tank for cleaning, which is time-consuming and labor-intensive.

[0005] In view of the above-mentioned defects, the designers actively carried out research and innovation in order to create a sewage treatment sedimentation tank to make it more valuable for industrial use. Utility Model Content

[0006] To solve any of the above technical problems, the purpose of the utility model is to provide a sewage treatment sedimentation tank.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A sewage treatment sedimentation tank, comprising a sedimentation tank assembly and a filter assembly located in the sedimentation tank assembly;

[0009] The sedimentation tank assembly comprises a sedimentation tank, in which a primary sedimentation cavity and a secondary sedimentation cavity are sequentially arranged from top to bottom, a filter cavity is arranged in the sedimentation tank above the primary sedimentation cavity, a sewage discharge cavity is arranged in the sedimentation tank below the secondary sedimentation cavity, a water inlet pipe is arranged on one side of the primary sedimentation cavity, and a water outlet pipe is arranged on one side of the filter cavity;

[0010] A rotating mechanism is installed on the outside of the bottom of the sewage discharge chamber. The driving end on the top of the rotating mechanism is connected to the cleaning scrapers located in the primary sedimentation chamber and the secondary sedimentation chamber through a rotating rod. A sewage discharge pipe is arranged on one side of the sewage discharge chamber.

[0011] As a further improvement of the utility model, a plurality of brackets are installed at the bottom of the sedimentation tank.

[0012] As a further improvement of the present invention, the inner diameter of the filter cavity is larger than the inner diameter of the primary sedimentation cavity, and the filter assembly is installed in the filter cavity.

[0013] As a further improvement of the present invention, the filter assembly includes a filter cylinder, a filter bracket on the top of the filter cylinder is mounted on a sedimentation tank above the filter cavity, the filter cylinder is placed in the filter cavity, a plurality of filter nets are evenly distributed on the filter cylinder from top to bottom, and a filter through hole connected to the primary sedimentation cavity below is provided at the bottom of the filter cylinder.

[0014] As a further improvement of the utility model, the filter apertures of the plurality of filter screens become smaller from bottom to top.

[0015] As a further improvement of the utility model, the cleaning scraper includes a first scraper fitted with the inner wall of the primary sedimentation chamber and a second scraper fitted with the inner wall of the secondary sedimentation chamber.

[0016] As a further improvement of the utility model, cleaning brushes are installed on both the first scraper and the second scraper.

[0017] As a further improvement of the present invention, the secondary sedimentation chamber is arranged in an inverted cone structure.

[0018] As a further improvement of the present invention, the rotating mechanism is a rotating motor or a rotating handle.

[0019] By means of the above solution, the utility model has at least the following advantages:

[0020] The utility model can drive the cleaning scrapers in the primary sedimentation chamber and the secondary sedimentation chamber through the rotating mechanism to clean the sedimentation tank, and then discharge the sludge through the sewage pipe, which saves time and labor and reduces the influence of sediment on the service life of the sedimentation tank.

[0021] The filter assembly of the utility model is detachably installed on the top of the sedimentation tank, which is convenient for replacing and cleaning the filter assembly.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a structural schematic diagram of a sewage treatment sedimentation tank of the utility model;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure of the sedimentation tank assembly;

[0026] Figure 3 yes Figure 1 Schematic diagram of the structure of the filtering component.

[0027] The meanings of the various reference numerals in the figures are as follows.

[0028] Sedimentation tank assembly 1, filter assembly 2, sedimentation tank 3, primary sedimentation chamber 4, filter chamber 5, water inlet pipe 6, water outlet pipe 7, secondary sedimentation chamber 8, bracket 9, sewage discharge chamber 10, rotating mechanism 11, rotating rod 12, sewage discharge pipe 13, cleaning scraper 14, filter cylinder 15, filter bracket 16, filter screen 17, filter through hole 18. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but only represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0031] Example

[0032] like Figure 1 to Figure 3 As shown,

[0033] A sewage treatment sedimentation tank comprises a sedimentation tank component 1 and a filter component 2 located in the sedimentation tank component 1. A plurality of brackets 9 are installed at the bottom of the sedimentation tank 3.

[0034] 1. Internal structure of sedimentation tank assembly 1:

[0035] The sedimentation tank assembly 1 includes a sedimentation tank 3, in which a primary sedimentation cavity 4 and a secondary sedimentation cavity 8 are sequentially arranged from top to bottom, and the secondary sedimentation cavity 8 is arranged in an inverted cone structure. A filter cavity 5 is arranged in the sedimentation tank 3 above the primary sedimentation cavity 4, and a sewage discharge cavity 10 is arranged in the sedimentation tank 3 below the secondary sedimentation cavity 8. A water inlet pipe 6 is arranged on one side of the primary sedimentation cavity 4, and a water outlet pipe 7 is arranged on one side of the filter cavity 5.

[0036] 2. Sewage cleaning structure:

[0037] A rotating mechanism 11 is installed on the outside of the bottom of the sewage discharge chamber 10. The rotating mechanism 11 is a rotating motor or a rotating handle. The driving end at the top of the rotating mechanism 11 is connected to the cleaning scraper 14 located in the primary sedimentation chamber 4 and the secondary sedimentation chamber 8 through a rotating rod 12. A sewage discharge pipe 13 is provided on one side of the sewage discharge chamber 10.

[0038] The cleaning scraper 14 includes a first scraper fitted with the inner wall of the primary sedimentation chamber 4 and a second scraper fitted with the inner wall of the secondary sedimentation chamber 8. Cleaning brushes are installed on the first scraper and the second scraper.

[0039] 3. Removable installation structure of filter assembly 2:

[0040] The inner diameter of the filter cavity 5 is larger than the inner diameter of the primary sedimentation cavity 4, and the filter assembly 2 is installed in the filter cavity 5. The filter assembly 2 includes a filter cylinder 15, and a filter bracket 16 at the top of the filter cylinder 15 is mounted on the sedimentation tank 3 above the filter cavity 5. The filter cylinder 15 is placed in the filter cavity 5, and a plurality of filter screens 17 are evenly distributed on the filter cylinder 15 from top to bottom, and the filter apertures of the plurality of filter screens 17 decrease from bottom to top. A filter through hole 18 connected to the primary sedimentation cavity 4 below is provided at the bottom of the filter cylinder 15.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and 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 utility model can be understood according to specific circumstances.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A sewage treatment sedimentation tank, comprising a sedimentation tank assembly (1) and a filter assembly (2) located in the sedimentation tank assembly (1); Features: The sedimentation tank assembly (1) comprises a sedimentation tank (3), wherein a primary sedimentation cavity (4) and a secondary sedimentation cavity (8) are arranged in sequence from top to bottom in the sedimentation tank (3), a filter cavity (5) is arranged in the sedimentation tank (3) above the primary sedimentation cavity (4), a sewage discharge cavity (10) is arranged in the sedimentation tank (3) below the secondary sedimentation cavity (8), a water inlet pipe (6) is arranged on one side of the primary sedimentation cavity (4), and a water outlet pipe (7) is arranged on one side of the filter cavity (5); A rotating mechanism (11) is installed on the outside of the bottom of the sewage discharge chamber (10), and the driving end at the top of the rotating mechanism (11) is connected to the cleaning scraper (14) located in the primary sedimentation chamber (4) and the secondary sedimentation chamber (8) through a rotating rod (12), and a sewage discharge pipe (13) is arranged on one side of the sewage discharge chamber (10).

2. A sewage treatment sedimentation tank as claimed in claim 1, characterized in that: A plurality of brackets (9) are installed at the bottom of the sedimentation tank (3).

3. A sewage treatment sedimentation tank as claimed in claim 1, characterized in that: The inner diameter of the filter cavity (5) is greater than the inner diameter of the primary sedimentation cavity (4), and the filter assembly (2) is installed in the filter cavity (5).

4. A sewage treatment sedimentation tank as claimed in claim 3, characterized in that: The filter assembly (2) comprises a filter cylinder (15), a filter bracket (16) on the top of the filter cylinder (15) is mounted on a sedimentation tank (3) above the filter cavity (5), the filter cylinder (15) is placed in the filter cavity (5), a plurality of filter screens (17) are evenly distributed on the filter cylinder (15) from top to bottom, and a filter through hole (18) is provided at the bottom of the filter cylinder (15) and is connected to a primary sedimentation cavity (4) below.

5. A sewage treatment sedimentation tank as claimed in claim 4, characterized in that: The filter apertures of the plurality of filter screens (17) decrease in sequence from bottom to top.

6. A sewage treatment sedimentation tank as claimed in claim 1, characterized in that: The cleaning scraper (14) comprises a first scraper fitted with the inner wall of the primary sedimentation chamber (4) and a second scraper fitted with the inner wall of the secondary sedimentation chamber (8).

7. A sewage treatment sedimentation tank as claimed in claim 6, characterized in that: The first scraper and the second scraper are both equipped with cleaning brushes.

8. A sewage treatment sedimentation tank as claimed in claim 1, characterized in that: The secondary sedimentation chamber (8) is arranged in an inverted cone-shaped structure.

9. A sewage treatment sedimentation tank as claimed in claim 1, characterized in that: The rotating mechanism (11) is a rotating motor or a rotating handle.

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