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Surface aeration method and equipment based on silk thread shearing sewage

A technology of surface aeration and silk thread, which is applied in water aeration, chemical instruments and methods, water/sludge/sewage treatment, etc., and can solve problems such as reduced efficiency, clogging of mesopore diffusers, heavy maintenance workload, etc. , to achieve the effect of simple equipment structure, improved power efficiency and obvious effect

Pending Publication Date: 2021-08-10
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Obviously, the efficiency of the microporous aerator in the blower aeration method is higher, and the theoretical power efficiency is almost twice that of other methods, but this method requires a microporous diffuser, which is easy to locate underwater. If blockage occurs, its efficiency will inevitably decrease after running for a period of time, and the actual power efficiency can generally only be maintained at 2.0-2.5kgO 2 / kW·h or so, and the maintenance workload of this method is relatively large, and the cost of equipment and pipeline engineering is also high
Although the surface aeration does not have the risk of clogging, and the equipment is located on the water surface, the equipment is simple, the maintenance is convenient, and the power efficiency will not decrease with the operation of the equipment, but it is difficult to further improve the power efficiency based on the above knowledge. Technology has not been able to overcome this defect and achieve the technical goal of significantly improving the power efficiency of surface aeration

Method used

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  • Surface aeration method and equipment based on silk thread shearing sewage
  • Surface aeration method and equipment based on silk thread shearing sewage
  • Surface aeration method and equipment based on silk thread shearing sewage

Examples

Experimental program
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Effect test

Embodiment approach 1

[0049] Implementation Mode 1: Horizontal Arrangement of Power Shaft - Shearing of Spring Steel Wire, see figure 1 .

[0050] The power shaft 1 placed horizontally is arranged about 0.2m above the water level of the aeration tank. The effective length of the power shaft 1 is equal to the width of the aeration tank. Several thin spring steel wires 2 are vertically welded on the power shaft 1 (or the spring steel wire 2 is welded on Connected to the cylinder 4 of the power shaft 1), the length of the spring steel wire 2 is 0.25-0.45m, and the submerged water depth is 0.05-0.25m deep (ignoring the diameter of the power shaft 1), and 6-10 rows of spring steel wire 2 can be welded on the power shaft 1 ( Take an even number), each row of spring steel wires 2 is staggered from the adjacent row of spring steel wires 2, that is, odd rows of spring steel wires 2 are aligned in the direction of rotation of the power shaft 1, and even rows are also aligned. But the spring steel wires 2 of...

Embodiment approach 2

[0053] Embodiment 2: Horizontal arrangement of the power shaft 1 - shearing of the fiber thread 3, see figure 2 .

[0054] Others are the same as Embodiment 1, except that a steel bar 5 is provided at the end of the fiber thread 3 , and the end of the steel bar 5 is welded on the power shaft 1 to fix the fiber thread 3 on the steel bar 5 . The underwater part of the aeration equipment also has a steel bar 5 except the fiber thread 3 .

Embodiment approach 3

[0055] Implementation Mode Three: Vertical Arrangement Mode 1 of Power Shaft 1 - Shearing of Spring Steel Wire 2, see image 3 .

[0056] The motor is arranged at a certain position above the surface of the aeration tank, the power shaft 1 is perpendicular to the water surface, and a ring 6 is arranged at the end of the power shaft 1, and the center of the ring 6 is connected to the power shaft 1. When the power shaft 1 rotates, The circular ring 6 rotates, and the circular ring 6 is porous to ensure the lateral flow of water. The ring 6 is just submerged in water, and the height of the ring 6 is the depth of submersion. The diameter of the ring 6 is determined according to the shape of the aeration tank. Spring steel wires 2 are arranged outside the ring 6. The spring steel wires 2 are parallel to the water surface. The length of the spring steel wires 2 is 0.15-0.30m. When the motor is turned on, the rotation of the ring 6 drives the spring steel wires 2 to rotate and cut ...

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Abstract

The invention relates to a surface aeration method and equipment based on silk thread shearing sewage. The method comprises the following steps: cutting sewage at a high speed in a certain depth range of the surface of the sewage by adopting a large number of thin silk threads, fully mixing air and water, dissolving oxygen in the air in the water to achieve an efficient aeration effect, and simultaneously, assisting a certain flow guide measure to make certain water flow exchange exist between the aeration area and the non-aeration area, and achieve the purposes of low energy consumption and high power efficiency. According to the aeration method, sewage is sheared at a high speed through metal wires or fiber silk threads, the defects of existing aeration equipment can be overcome, the technical aim of remarkably improving the surface aeration power efficiency is achieved, the aeration method is high in power efficiency, the equipment is simple, blockage is avoided, and the actual power efficiency can generally reach 3.0-3.5 kgO2 / kW.h or above, and is obviously than that of the conventional surface aeration equipment.

Description

technical field [0001] The invention belongs to the field of water pollution control technology and equipment, and in particular relates to a surface aeration method and equipment based on wire cutting sewage. Background technique [0002] The sewage aerobic biological treatment process needs to provide aeration to the sewage to meet the needs of microbial growth. Aeration is usually the largest part of energy consumption in sewage plants, and improving aeration efficiency to save energy is of great significance for sewage plants. Traditional aeration methods mainly use blower aeration, mechanical surface aeration, or jet aeration. [0003] Blower aeration provides air to the water through the blower, and further disperses the air into bubbles of a certain size through the diffusion device and enters the water. In general, since the gas-liquid contact area has a great influence on the oxygen mass transfer, the smaller the diameter of the air bubbles in the blower aeration,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00
CPCC02F7/00Y02W10/10
Inventor 唐玉朝
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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