Anaerobic biological treatment system for liquid dung

Abstract

The utility model discloses a liquid dung anaerobic biological treatment system, and particularly relates to the technical field of liquid dung treatment, which comprises a three-phase separator, the three-phase separator comprises a plurality of first isosceles trapezoid cover bodies which are arranged at equal intervals, and a second isosceles trapezoid cover body is arranged in each first isosceles trapezoid cover body; the conical oil seals are arranged at the ends of the two adjacent first isosceles trapezoid cover bodies, and a preset distance is kept between the conical oil seals and the first isosceles trapezoid cover bodies, so that a first air channel is formed; and the arc-shaped dome cover is arranged between the two adjacent first isosceles trapezoid cover bodies and is opposite to the conical oil seal. The filter is simple in structure and reasonable in design, and the problem of blockage caused by accumulation of floating particles can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment technology, specifically to an anaerobic biological sewage treatment system. Background Technology

[0002] Anaerobic biological treatment of sewage utilizes the upflow principle. Wastewater flows upward through a sludge bed containing highly active anaerobic microorganisms. These microorganisms adhere to the packing material, and as the wastewater passes through the packing layer, organic matter is decomposed by the microorganisms. Complex organic matter is broken down into volatile fatty acids, alcohols, and other medium-molecular-weight organic compounds by some acidophilic microorganisms. In the methanation stage, these intermediate products are converted into methane (CH4) and carbon dioxide (CO2) by methanogenic bacteria. This process is typically carried out in a closed container to retain the generated biogas (a methane-dominant mixture).

[0003] The three-phase separator (publication number: CN108217938A, disclosing a septic tank with a built-in annular three-phase separator) is the core of anaerobic biological treatment of sewage, which can effectively separate the liquid, solid and gas (usually biogas) generated during the treatment process. However, under long-term operation, particulate matter in the gas will float on the three-phase separator, causing blockage. Utility Model Content

[0004] The purpose of this invention is to provide an anaerobic biological treatment system for sewage to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anaerobic biological treatment system for sewage includes a three-phase separator, which comprises:

[0007] Multiple first isosceles trapezoidal covers are arranged at equal intervals, and each of the first isosceles trapezoidal covers has a second isosceles trapezoidal cover inside;

[0008] A conical oil seal is arranged at the ends of two adjacent first isosceles trapezoidal covers, with a predetermined distance between them, to form a first air passage;

[0009] An arc-shaped dome is arranged between two adjacent first isosceles trapezoidal covers and opposite to the conical oil seal.

[0010] Preferably, the outer edge of the arc-shaped dome is an arc-shaped guide portion, and the end of the arc-shaped guide portion faces upward.

[0011] Preferably, a vertical processing chamber is also included, with the three-phase separator arranged above the interior of the vertical processing chamber.

[0012] Preferably, a water distributor is installed near the bottom inside the vertical treatment tank, and an anaerobic sludge bed is located between the water distributor and the three-phase separator.

[0013] Preferably, the vertical treatment tank is provided with a conical receiving hopper, the narrow opening of which is close to the water distributor.

[0014] Preferably, a flow guide is provided between the conical receiving hopper and the water distributor, and the flow guide is divided into an elliptical end and an inner groove according to its structure.

[0015] The concave surface of the groove faces the narrow opening of the conical receiving hopper, while the convex surface faces the water distributor.

[0016] Preferably, the first isosceles trapezoidal cover is a copper alloy plate.

[0017] Preferably, the second isosceles trapezoidal cover is a copper alloy plate.

[0018] Preferably, the dimensions of the second isosceles trapezoidal cover are smaller than those of the first isosceles trapezoidal cover.

[0019] In the above technical solution, the anaerobic biological treatment system for sewage provided by this utility model has the following beneficial effects: the gas passes through the first air passage (14) formed between the conical oil seal (13) and the ends of the first isosceles trapezoidal cover (11) and the second isosceles trapezoidal cover (12) with a double-layer structure. The double-layer structure can play a role in diverting the airflow, thereby increasing the area of ​​objects that can float in the gas, thus ensuring that the floating particles are reduced to a minimum when the gas passes through the first isosceles trapezoidal cover (11), thereby solving the problem of blockage caused by the accumulation of floating particles. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a cross-sectional structural diagram provided for an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Three-phase separator; 11. First isosceles trapezoidal cover; 12. Second isosceles trapezoidal cover; 13. Conical oil seal; 14. First air passage; 15. Arc-shaped dome; 16. Arc-shaped guide section; 2. Vertical treatment box; 3. Water distributor; 4. Conical receiving hopper; 5. Flow guide; 51. Elliptical end; 52. Inner groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, an anaerobic biological treatment system for sewage includes a three-phase separator 1, which comprises:

[0026] Multiple first isosceles trapezoidal covers 11 are arranged at equal intervals, and each first isosceles trapezoidal cover 11 has a second isosceles trapezoidal cover 12 inside it;

[0027] A conical oil seal 13 is arranged at the ends of two adjacent first isosceles trapezoidal covers 11, and the two are kept at a predetermined distance to form a first air passage 14;

[0028] An arc-shaped dome 15 is arranged between two adjacent first isosceles trapezoidal covers 11 and is arranged opposite to a conical oil seal 13.

[0029] Specifically, in the embodiment, the conical oil seal 13 is shaped like a gemstone, and its two inclined surfaces correspond to the ends of the first isosceles trapezoidal cover 11. Since the first isosceles trapezoidal cover 11 and the second isosceles trapezoidal cover 12 are arranged in parallel along the vertical direction, the ends of the second isosceles trapezoidal cover 12 also correspond to the inclined surfaces of the conical oil seal 13.

[0030] Furthermore, in the treatment process, the treated gas rises and passes through a three-phase separator 1, thereby separating the liquid and solid sludge from the treated gas. The separated liquid typically contains a low concentration of organic pollutants and can be directly discharged or further treated to meet higher emission standards.

[0031] In the above technology, the gas passes through the first air passage 14 formed between the conical oil seal 13 and the ends of the first isosceles trapezoidal cover 11 and the second isosceles trapezoidal cover 12 with a double-layer structure. The double-layer structure can divert the airflow, thereby increasing the surface area of ​​objects that can float in the gas. This ensures that the number of floating particles is minimized when the gas passes through the first isosceles trapezoidal cover 11, thus solving the blockage problem caused by the accumulation of floating particles.

[0032] As a further embodiment of the present invention, the outer edge of the arc-shaped dome 15 is an arc-shaped guide portion 16, and the end of the arc-shaped guide portion 16 faces upward.

[0033] Specifically, the uniquely designed arc-shaped dome 15 serves as an interceptor, thereby adding a contact unit that can condense into water through contact with the gas. The gas will flow along the curved surface of the arc-shaped dome 15 and the arc-shaped guide 16, under the action of Bernoulli's principle.

[0034] As a further embodiment of the present invention, it also includes a vertical treatment box 2, a three-phase separator 1 arranged above the interior of the vertical treatment box 2, and a water distributor 3 arranged near the bottom of the vertical treatment box 2, with an anaerobic sludge bed between the water distributor 3 and the three-phase separator 1.

[0035] The liquid enters and is sprayed out by the water distributor 3, while the filtered liquid flows out through the overflow pipe above the three-phase separator 1, and the biogas is discharged through the vertical treatment tank 2. This application only designs the three-phase separator 1, and the detailed structure of the specific anaerobic biological treatment equipment for sewage can be found in the UASB upflow anaerobic reactor, which is existing technology and will not be described in detail here.

[0036] As a further embodiment of this utility model, a conical receiving hopper 4 is provided inside the vertical treatment box 2, and the narrow opening of the conical receiving hopper 4 is close to the water distributor 3.

[0037] A flow guide 5 is provided between the conical receiving hopper 4 and the water distributor 3. The flow guide 5 is divided into an elliptical end 51 and an inner groove 52 according to its structure.

[0038] The concave surface of the groove 52 faces the narrow opening of the conical receiving hopper 4, while the convex surface faces the water distributor 3.

[0039] Specifically, in this embodiment, the flow guide 5 can guide water vapor to flow along its curved surface, enter from the narrow opening of the conical receiving hopper 4, and finally pass through the anaerobic sludge bed. The conical receiving hopper 4 and the flow guide 5 are designed to prevent the dripping liquid containing particulate matter from falling directly onto the water distributor 3, causing blockage of the outlet.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anaerobic biological treatment system for sewage, characterized in that, Includes a three-phase separator (1), which includes: Multiple first isosceles trapezoidal covers (11) are arranged at equal intervals, and each of the first isosceles trapezoidal covers (11) is provided with a second isosceles trapezoidal cover (12) inside; A conical oil seal (13) is arranged at the ends of two adjacent first isosceles trapezoidal covers (11) and the two are kept at a predetermined distance to form a first air passage (14); An arc-shaped dome (15) is arranged between two adjacent first isosceles trapezoidal covers (11) and opposite to the conical oil seal (13).

2. The anaerobic biological treatment system for sewage according to claim 1, characterized in that, The outer edge of the arc-shaped dome (15) is an arc-shaped guide (16), and the end of the arc-shaped guide (16) faces upward.

3. The anaerobic biological treatment system for sewage according to claim 1, characterized in that, It also includes a vertical processing box (2), with the three-phase separator (1) arranged above the interior of the vertical processing box (2).

4. The anaerobic biological treatment system for sewage according to claim 3, characterized in that, The vertical treatment tank (2) is equipped with a water distributor (3) near the bottom, and the water distributor (3) and the three-phase separator (1) are connected by an anaerobic sludge bed.

5. The anaerobic biological treatment system for sewage according to claim 4, characterized in that, The vertical treatment box (2) is equipped with a conical receiving hopper (4), and the narrow opening of the conical receiving hopper (4) is close to the water distributor (3).

6. The anaerobic biological treatment system for sewage according to claim 5, characterized in that, A guide (5) is provided between the conical receiving bucket (4) and the water distributor (3). The guide (5) is divided into an elliptical end (51) and an inner groove (52) according to its structure. The concave surface of the groove (52) faces the narrow opening of the conical receiving hopper (4), while the convex surface faces the water distributor (3).

7. The anaerobic biological treatment system for sewage according to claim 1, characterized in that, The first isosceles trapezoidal cover (11) is specifically a copper alloy plate.

8. The anaerobic biological treatment system for sewage according to claim 1, characterized in that, The second isosceles trapezoidal cover (12) is specifically a copper alloy plate.

9. The anaerobic biological treatment system for sewage according to claim 1, characterized in that, The specifications of the second isosceles trapezoidal cover (12) are smaller than those of the first isosceles trapezoidal cover (11).

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