Aeration mechanism of nitrification tank

Abstract

The utility model discloses an aeration mechanism of a nitrification tank. The aeration mechanism comprises at least one nitrification tank, a jet aerator, an aeration fan, a plurality of aeration branch pipes, a bottom support and a spiral-flow aerator, a plurality of mounting holes are formed in the top of each nitrification tank; the jet aerator is arranged in the nitrification tank; the air outlet of the aeration fan is communicated with an aeration main pipe; one end of each aeration branch pipe is communicated with the aeration main pipe, and the other end of each aeration branch pipe penetrates through the corresponding mounting hole and extends below the liquid level of the nitrification tank; the bottom support is fixed at one end, extending into the nitrification tank, of the aeration branch pipe; the spiral-flow aerators are mounted on the bottom support and are communicated with the corresponding aeration branch pipes; the aeration fan is used for supplementing air into the nitrification tank through the spiral-flow aerator. According to the aeration mechanism of the nitrification tank provided by the utility model, the spiral-flow aerators are mounted through the aeration branch pipes, so that air is supplemented through a plurality of spiral-flow aerators, liquid in the nitrification tank and a matched jet pump do not need to be emptied, the modification amount is small, and the normal operation of the nitrification tank cannot be influenced.

Description

[Technical field]

[0001] The utility model relates to the technical field of sewage nitrification treatment, in particular to an aeration mechanism for a nitrification tank. [Background technology]

[0002] The nitrification tank is the part of the water treatment process used for nitrification to effectively remove nitrogen from wastewater. Nitrification is a microbiologically catalyzed process in which ammonia (NH3) is oxidized to nitrite (NO2-) and then further oxidized to nitrate (NO3-). This process usually requires specific bacteria (nitrifying bacteria) to promote this conversion under aerobic conditions. Therefore, there must be sufficient oxygen in the nitrification tank to ensure the efficiency of the nitrification process.

[0003] At present, the aeration of nitrification pools is achieved through jet aerators. However, when the aeration volume of the jet aerators in the existing projects is still insufficient, the existing nitrification pools need to be remodeled to increase the aeration volume. If the aeration is increased by increasing the number of jet aerators, the nitrification pools need to be emptied when new jet aerators are installed, and new jet aerators and aeration pipes need to be installed at the bottom of the pools, and new jet pumps need to be installed, which will affect normal production and require a large amount of work for the transformation.

[0004] In view of this, it is necessary to provide an aeration mechanism for a nitrification tank to overcome the above-mentioned defects. [Contents of the utility model]

[0005] The utility model aims to provide an aeration mechanism for a nitrification tank, aiming to improve the problem that the aeration transformation of the existing nitrification tank will affect the normal production and the transformation workload is large.

[0006] In order to achieve the above object, the utility model provides a nitrification pond aeration mechanism, comprising:

[0007] At least one nitrification tank, each of which has a plurality of mounting holes on the top;

[0008] A jet aerator, wherein the jet aerator is arranged in the nitrification tank;

[0009] An aeration fan, wherein the air outlet of the aeration fan is connected to an aeration main pipe;

[0010] A plurality of aeration branch pipes, one end of each of the aeration branch pipes is connected to the aeration main pipe, and the other end passes through the corresponding installation hole and extends below the liquid surface of the nitrification tank;

[0011] A bottom support, the bottom support being fixed to one end of the aeration branch pipe extending into the nitrification tank;

[0012] A cyclone aerator, the cyclone aerator is installed on the base and is connected to the corresponding aeration branch pipe;

[0013] The aeration fan is used to supply air to the nitrification tank through the cyclone aerator.

[0014] In a preferred embodiment, the aeration branch pipe is fixed to the top of the nitrification tank by angle steel.

[0015] In a preferred embodiment, one end of the aeration branch pipe extending into the nitrification tank is bent in a horizontal direction to form a fixing portion, and the bottom of the cyclone aerator is mounted on the fixing portion.

[0016] In a preferred embodiment, the jet aerator is disposed at the center of the nitrification tank, and a plurality of cyclone aerators are disposed at the edge of the nitrification tank and are spaced apart from each other.

[0017] In a preferred embodiment, the aeration branch pipes close to each other in adjacent nitrification tanks are connected to the same aeration main pipe.

[0018] The aeration mechanism for the nitrification tank provided by the utility model has a plurality of installation holes on the top of the existing nitrification tank, so that a cyclone aerator can be installed through an aeration branch pipe, thereby replenishing air through the plurality of cyclone aerators, and there is no need to empty the liquid in the nitrification tank and the matching jet pump, so the modification amount is small and the normal operation of the nitrification tank will not be affected.

Brief Description of the Drawings

[0019] 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.

[0020] Figure 1 A longitudinal cross-sectional schematic diagram of the aeration mechanism of the nitrification tank provided by the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged view of the aeration mechanism of the nitrification tank within circle A shown;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure around the cyclone aerator in the aeration mechanism of the nitrification tank shown;

[0023] Figure 4 for Figure 1 A top view of the aeration mechanism of the nitrification tank is shown.

[0024] Numbers in the figure: 100, nitrification tank aeration mechanism; 10, nitrification tank; 101, mounting hole; 20, jet aerator; 30, aeration main pipe; 40, aeration branch pipe; 41, fixing part; 50, bottom support; 60, cyclone aerator; 70, angle steel. [Specific implementation method]

[0025] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0026] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0027] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] In an embodiment of the present invention, a nitrification pond aeration mechanism 100 is provided, which is used to increase aeration in an existing primary nitrification pond with a jet aerator to improve nitrification efficiency and capacity.

[0029] like Figure 1-Figure 4 As shown, the nitrification tank aeration mechanism 100 includes: at least one nitrification tank 10, a jet aerator 20, an aeration fan (not shown in the figure), a plurality of aeration branch pipes 40, a bottom support 50, and a cyclone aerator 60.

[0030] A plurality of nitrification tanks 10 are arranged adjacent to each other. A plurality of mounting holes 101 are provided on the top of each nitrification tank 10 .

[0031] The jet aerator 20 is arranged in the nitrification tank 10. In the present embodiment, the jet aerator 20 is arranged at the center of the nitrification tank 10 and below the liquid level to aerate the nitrification tank 10 in large quantities. The jet aerator 20 is a device commonly used for biological treatment of sewage. Its working principle is to generate fine bubbles by connecting to a water pump and a compressed air pipeline so that the water jet generates fine bubbles. The air in these bubbles is fully in contact with the water, thereby dissolving oxygen in the water to achieve an aeration effect.

[0032] The aeration fan may be disposed at the top of the outer side of the nitrification tank 10 , and the air outlet is connected to the aeration main pipe 30 for conveying a large amount of air to the aeration main pipe 30 .

[0033] Each aeration main pipe 30 can be connected to multiple aeration branch pipes 40 at the same time, and these aeration branch pipes 40 are not limited to belong to the same nitrification tank 10. Furthermore, the aeration branch pipes 40 close to each other in adjacent nitrification tanks 10 are connected to the same aeration main pipe 30, so as to facilitate the layout design optimization of the pipeline structure.

[0034] Specifically, one end of each aeration branch pipe 40 is connected to the aeration main pipe 30, and the other end passes through the corresponding mounting hole 101 and extends below the liquid surface of the nitrification tank 10. The aeration branch pipe 40 is fixed to the top of the nitrification tank 10 by an angle steel 70.

[0035] In this embodiment, the base 50 is made of stainless steel and is fixed to one end of the aeration branch pipe 40 extending into the nitrification tank 10. The cyclone aerator 60 is mounted on the base 50 and communicated with the corresponding aeration branch pipe 40. The end of the aeration branch pipe 40 extending into the nitrification tank 10 is bent in the horizontal direction to form a fixing portion 41, and the bottom of the cyclone aerator 60 is mounted on the fixing portion 41.

[0036] The aeration fan is used to supply air to the nitrification tank 10 through the aeration main pipe 30 , the aeration branch pipe 40 , and the cyclone aerator 60 in sequence, thereby further supplying air to the nitrification tank 10 on the basis of the aeration of the existing radio frequency aerator 20 .

[0037] It should be noted that the cyclone aerator 60 is a highly efficient sewage treatment equipment, which is widely used in various types of high-concentration wastewater treatment. Its working principle is to use a special bubble cutting mode to form a large number of fine bubbles through the internal multi-layer collision and cutting device through high-speed air flow, thereby improving the utilization efficiency of oxygen.

[0038] Furthermore, in some embodiments, the jet aerator 20 is disposed at the center of the nitrification tank 10 , and a plurality of cyclone aerators 60 are disposed at the edge of the nitrification tank 10 and are spaced apart from each other, so that aeration can be more uniformly provided in the nitrification tank 10 .

[0039] In summary, the nitrification tank aeration mechanism 100 provided by the utility model can install the cyclone aerator 60 through the aeration branch pipe 40 by opening a plurality of installation holes 101 on the top of the existing nitrification tank 10, so as to replenish air through the plurality of cyclone aerators 60, without emptying the liquid in the nitrification tank 10 and the matching jet pump, and the modification amount is small, which will not affect the normal operation of the nitrification tank 10.

[0040] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A nitrification tank aeration mechanism, characterized in that: include: At least one nitrification tank, each of which has a plurality of mounting holes on the top; A jet aerator, wherein the jet aerator is arranged in the nitrification tank; An aeration fan, wherein the air outlet of the aeration fan is connected to an aeration main pipe; A plurality of aeration branch pipes, one end of each of the aeration branch pipes is connected to the aeration main pipe, and the other end passes through the corresponding installation hole and extends below the liquid surface of the nitrification tank; A bottom support, the bottom support being fixed to one end of the aeration branch pipe extending into the nitrification tank; A cyclone aerator, the cyclone aerator is installed on the base and is connected to the corresponding aeration branch pipe; The aeration fan is used to supply air to the nitrification tank through the cyclone aerator.

2. The nitrification pond aeration mechanism according to claim 1, characterized in that: The aeration branch pipe is fixed to the top of the nitrification tank through angle steel.

3. The nitrification pond aeration mechanism according to claim 1, characterized in that: One end of the aeration branch pipe extending into the nitrification tank is bent in a horizontal direction to form a fixing portion, and the bottom of the cyclone aerator is installed on the fixing portion.

4. The nitrification pond aeration mechanism according to claim 1, characterized in that: The jet aerator is arranged at the center of the nitrification tank, and a plurality of cyclone aerators are arranged at the edge of the nitrification tank and are spaced apart from each other.

5. The nitrification pond aeration mechanism according to claim 4, characterized in that: The aeration branch pipes close to each other in adjacent nitrification tanks are connected to the same aeration main pipe.

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