Oxidation ditch submersible mixer

NegotiableUpdate on 04/10

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Overview

The aeration of the oxidation ditch submersible mixer is a basic means to maintain the normal metabolism of aerobic microorganisms, and the oxygen transfer efficiency of the underwater aeration system is directly related to the water depth. By using a submersible mixer in the aeration tank to design it as a continuous circulation flow tank, the path of releasing "bubbles" from the aeration head will be changed under the action of the circulation flow rate, increasing the "oxygen transfer depth" and improving the oxygen transfer efficiency.

Product Details

Oxidation ditch submersible mixerSubmersible mixers are suitable for aeration tanks in industrial and urban wastewater treatment plants, producing strong water flows with low tangential flow. They can be used to create water flows during circulation, nitrification, denitrification, and phosphorus removal stages. It can be widely used for anaerobic and facultative treatment of industrial wastewater and urban domestic sewage in industries such as petroleum, chemical, printing and dyeing, leather making, medicine, food, papermaking, textile, etc.

1. Perform hydraulic circulation

The submersible mixer only needs to provide the necessary circulation flow rate in anaerobic tanks, anoxic tanks, oxidation ditches and other tanks to maintain the suspension of the mixed liquid in the tank, allowing microorganisms to fully contact with the substrate. Through the energy input by the mixer, a continuous circulating water flow is formed. This design not only effectively maintains the suspension of the mixed liquid, but also generates a huge dilution and homogenization ability due to the fact that the flow rate of the circulating water in the tank is usually tens or even hundreds of times higher than the inlet flow rate. Therefore, this reactor has excellent process characteristics that can withstand impact loads.

2. Improve oxygen transfer efficiency

Aeration is a fundamental means of maintaining the normal metabolism of aerobic microorganisms, and the oxygen transfer efficiency of underwater aeration systems is directly related to water depth. By using a submersible mixer in the aeration tank to design it as a continuous circulation flow tank, the path of releasing "bubbles" from the aeration head will be changed under the action of the circulation flow rate, increasing the "oxygen transfer depth" and improving the oxygen transfer efficiency.

3. Convenient grid and segment processing

When the volume of a single cell pool is small, each cell can be designed as a square or circular plane, and a submersible mixer can be installed in each cell.

4. Improving water quality of water bodies

In many polluted water bodies and deep treatment ponds used for sewage treatment, water quality improvement often encounters problems such as deep water, slow water flow, and insufficient surface oxygenation to meet the dissolved oxygen requirements of deep water areas. A submersible mixer can be set up for "artificial respiration" to oxygenate deep water areas and improve the overall water quality. This "artificial respiration" technology is a simple and effective means of improving water quality.

Oxidation ditch submersible mixerCharacteristics of aerobic tank submersible mixer:

1. The submersible mixer has a compact structure, simple operation and maintenance, easy installation and maintenance, and a long service life;

The impeller of the submersible mixer conforms to the hydraulic design structure, with high working efficiency. The swept back blades have self-cleaning function, which can prevent debris from entangling and blocking;

Mixing a submersible agitator with an aeration system can significantly reduce energy consumption, increase oxygen filling, and effectively prevent sedimentation;

The insulation level of the motor winding of the submersible mixer is F, and the protection level is IP68. Good bearings and anti condensation devices are selected to make the operation of the motor safer;

5. Mechanical seals for submersible agitator channels;

Precautions and maintenance of submersible mixer:

1. Regularly lift the mixer to clean the entanglement on the impeller and pump body, check whether the impeller is loose or damaged, and repair it in a timely manner;

2. Observe the trajectory of the liquid level during the operation of the mixer, and adjust it promptly if it is abnormal;

3. Observe the vibration of the fixed rod and promptly lift it for inspection if there is significant vibration;

4. During normal operation, all foam needs to pass through the liquid level, and there should be no vortex above the mixer during operation. Otherwise, it cannot run for a long time and needs to be stopped for adjustment;

5. Regularly check the sealing condition, and repair it in a timely manner if the sealing condition is poor;

6. Check and replace the bearing lubricating oil;

7. Check if there is any skin or damage to the cables of the high-speed submersible mixer.

8. When lifting the submersible mixer with a hook, the impeller end should be tilted upward by 5 ° -10 ° from the horizontal plane;

9. The guide rod or guide wire should be perpendicular to the horizontal and can be calibrated with a plumb bob;

10. By adjusting the chain on the lifting device, the lifting hook and the lifting center of gravity of the submersible mixer are on the same vertical line during the sliding process of the submersible mixer along the guide rod or guide wire.