QJB3/8-400/3-740S high-speed submersible mixer for sludge tank

QJB3/8-400/3-740S high-speed 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.

QJB3/8-400/3-740S high-speed submersible mixer for sludge tank

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.

Selection precautions:

To ensure the effectiveness, please provide the following information from the user:

1. Application purpose;

2. Pool type;

3. Pool size, including water depth;

4. Medium characteristics: including viscosity, density, temperature, solid content, etc.

Structure Introduction:

The QJB submersible mixer mainly consists of an equipment host, installation system, and electrical control equipment.

The QJB submersible mixer can be divided into high-speed mixing submersible mixer and low-speed push flow submersible mixer according to its functional form. High speed hybrid submersible mixers are divided into direct coupled stamping submersible mixers and non direct coupled submersible mixers according to their structural characteristics. The low-speed push flow submersible mixer belongs to the non direct flow submersible mixer.

The hybrid series QJB submersible mixer is divided into casting mixer and stamping mixer according to its blade forming method. The blades (impellers) of the casting mixer are formed by casting, and the material of the body shell is generally cast iron. The blades of the stamping mixer are formed by stamping, and the material of the body shell is stainless steel.

The submersible mixer with direct stamping structure adopts a multipole motor, and the hydraulic components are stamped and formed, with good accuracy and high efficiency. The impeller has different blade angles. Adopting a hydraulic balance and unobstructed drag design, the structure is compact, the volume is small, the weight is light, the operation and maintenance are simple, the installation is convenient and fast, and the service life is long. The shell is entirely made of stainless steel, with a beautiful and smooth appearance. Recognized by the National Environmental Protection Administration, it is a product among domestic and foreign submersible mixers.