QJB high-speed stainless steel submersible mixer for sludge tank

QJB high-speed stainless steel submersible mixer for sludge tank

1. Perform hydraulic circulation

In anaerobic tanks, anoxic tanks, oxidation ditches, and other tanks, it is only necessary to provide the necessary circulation flow rate to maintain the suspension of the mixed liquid in the tank, allowing microorganisms to fully contact with the substrate. Through the energy input of 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 of withstanding shock loads.

2. Improve oxygen transfer efficiency

The basic means of maintaining the normal metabolism of aerobic microorganisms during underwater aeration, and the oxygen transfer efficiency of the underwater aeration system is directly related to the water depth. By using a stainless steel submersible mixer in the aeration tank and designing 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 for grid division and segmented processing

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

4. Improving the physical condition 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 in deep water areas. Blenders can be installed for "artificial respiration". This technology is a simple and effective means of improving water quality by oxygenating deep water areas and enhancing the overall water quality.

Before making a purchase, it is necessary to consider the length, width, and depth of the regulating pool. You should know that choosing the correct model of stainless steel submersible mixer will affect whether the equipment can be used normally. The primary principle of selection is to ensure that the purchased stainless steel submersible mixer can fully play its role in the pool, and this can be determined based on the flow rate, because different sewage treatment plants have different requirements for the process. Generally, the optimal flow rate should be within the range of 0.15m/s-0.3m/s. If the flow rate is below 1.5m/s, it may not achieve the desired mixing effect, and if it exceeds 3.0m/s, it will affect the process efficiency and cause waste.

QJB high-speed stainless steel submersible mixer for sludge tank

Trial operation:

At the beginning of the trial operation, the equipment should be fixed on the guide rod.

Attention should be paid to the significant impact force when starting the impeller, and special care should be taken.

When operating a submersible mixer, be careful with the rotating impeller

During the start-up process, test run the submersible mixer and pay attention to the current surge during start-up. It is normal for the current to be 10% to 20% higher than the current during operation within a few seconds of starting. The current in steady state should be lower than the rated current.

Excessive current consumption may be caused by strong viscosity or high concentration of the liquid, or by improper adjustment of the submersible mixer. Check if the submersible mixer is oscillating.

Excessive agitation in a small capacity pool, imbalance of the impeller, or lack of coordination between the inflow and outflow of liquid caused by the air rolled up by the impeller, may result in oscillation and vibration,

Interference between several submersible mixers can also cause oscillation and vibration.

Product Introduction:

The QJB submersible mixer can be divided into two series: mixing and low-speed push flow.

The mixing series mixer is suitable for mixing liquids containing suspended solids in sewage treatment plants and industrial processes;

The low-speed push flow series mixer is suitable for aeration tanks in industrial and urban sewage treatment plants. It produces strong water flow with low tangential flow, which can be used for circulation, nitrification, denitrification, and phosphorus removal stages to create water flow.

Performance parameter table:

The mixer operates under rated voltage of 380V, frequency of 50Hz, winding insulation level of F, protection level of IP68, and working mode I.