QJB submersible mixer

【QJB type submersible mixer】Product Introduction:

　　QJB submersible mixerIt can be divided into two main series: mixed stirring 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.

QJB Stainless Steel Submersible Blender Model Meaning:

[QJB type submersible mixer] Purpose and scope of application:

The mixing and stirring series submersible mixer is suitable for various water treatments
The process and industrial flow require a place where solid liquid two-phase or solid liquid gas three-phase media are uniformly mixed and reacted.
QJB submersible mixer
■Mixing of sewage (wastewater)/activated sludge
■Control the separation of concentrated sludge
■Acid alkali neutralization and pH adjustment process
■Prevent particle condensation and sedimentation on the pool wall and bottom
■Improve the efficiency of the heat transfer system
■In other places where it is necessary to maintain the separation of two or three phases, the submersible mixer can operate continuously under the following conditions
◎The temperature of the medium shall not exceed 40 ℃;
◎The pH value of the medium is between 5-9;
◎The medium density shall not exceed 1150Kg/m3;
◎Long term diving operation, with a diving depth generally not exceeding 20M.
The submersible mixer must operate underwater and cannot work in environments that are flammable, explosive, or highly corrosive！

[QJB type submersible mixer] Performance characteristics:

1QJB submersible mixerCompact structure, easy operation and maintenance, convenient installation and maintenance, long service life;
2. The impeller has a good hydraulic design structure, high working efficiency, and the swept back blades have self-cleaning function to prevent debris entanglement and blockage;
3. Mixing with the aeration system can significantly reduce energy consumption, increase oxygen filling capacity, and effectively prevent sedimentation;
4. The insulation level of the motor winding is grade, and the protection level is IP68. The motor anti condensation device with imported bearings is selected to make the operation of the motor safer;
5. The two mechanical seals are made of tungsten carbide tungsten carbide material. All exposed fasteners are made of stainless steel.

Structural features of QJB submersible mixer:

The mixed mixing series products use multi pole motors and adopt a direct connection structure, which has low energy consumption and high efficiency; The impeller is formed by precision casting or stamping, with high precision, large thrust, beautiful and smooth appearance, and compact structure.
The low-speed thrust series products adopt cycloidal pinwheel reducers, equipped with low power, low speed, large impeller diameter, and wide service area. The impeller is made of polyurethane material and aluminum alloy, with high strength and strong corrosion resistance. In addition to its stirring function, it also has the functions of pushing and creating water flow.
The motor winding of the submersible mixer is F-class insulated and has a protection level of IP68. When used in conjunction with the aeration system in sewage treatment plants, it can greatly reduce energy consumption and significantly increase oxygen filling, effectively preventing sedimentation. According to the process requirements, the direct coupled submersible mixer can be equipped with a guide cover.

Selection precautions for QJB submersible mixer:

To ensure better operational performance of the submersible mixer, please provide the following information from the user;
　　◎Application purpose;
　　◎Pool type and size, including water depth;
　　◎The characteristics of the stirring medium include viscosity, density, temperature, and solid content.

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

Installation system of QJB submersible mixer:

The specialized installation system for submersible mixers allows for quick installation and disassembly without the need to discharge wastewater from the tank.
When the pool depth H is less than 4 meters, it is recommended to use installation system I. The diving depth of the submersible mixer can be adjusted vertically as needed, and the maximum angle that can rotate around the guide rod in the horizontal plane is ± 60 °. The lifting system base, support frame, and lower bracket are all fixed with expansion bolts at the associated interface with the pool, without the need for reserved holes.
When the pool depth H is greater than 4 meters, it is recommended to use installation system II, which requires a concrete foundation (or steel structure base) to be built at the bottom of the pool. The lifting system base, steel rope fixing frame, and guide base are all fixed with expansion bolts at the associated interface with the pool, without the need for reserved holes. The installation system II uses guide steel ropes instead of guide rods, which has the characteristics of convenient transportation and simple on-site installation. This system fundamentally avoids the situation of guide rod bending and deformation caused by transportation, which affects normal use, and effectively improves the phenomenon of inability to lift due to installation errors of guide rods when the pool is too deep. Under the installation conditions with a cantilevered pool roof (as shown in the picture), it appears more convenient and reliable to operate.
When the customer places an order, please provide the pool depth H and pool type diagram so that the factory can determine the size of the guide rod or guide wire during processing. The material of the installation system is made of stainless steel (or carbon steel). In addition to guide rods or guide wires, and lifting bases, multiple mixers can share a set of lifting devices in the installation system (except for special user requirements).

Installation precautions for QJB submersible mixer:

The guide rod or guide wire should be perpendicular to the horizontal and can be calibrated with a lead hammer;
When lifting a submersible mixer, the lifting hook should tilt the impeller end 5 ° -10 ° above the horizontal plane
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.