Product Description
The brand潜水推流器 features the German diving motor sealing technology. After years of practical exploration, its overall performance has reached the level of similar foreign products due to its innovation in form, structure, and testing methods.
The QJB type submersible mixer is divided into two main series: mixing and low-speed push flow.
The Mixed Series Agitator is suitable for mixing suspended liquid in wastewater treatment plants and industrial processes.
Low-speed impeller mixers are suitable for aeration tanks and oxidation ditches in industrial and urban sewage treatment plants, as well as AAO tanks, A2O tanks, anaerobic tanks, and anoxic tanks. They generate strong water currents with low tangential flow, which can be used to create water currents for circulation and stages like nitrification, denitrification, and phosphorus removal.
Application Range:
The blender should be able to operate continuously under the following conditions:
1. Medium temperature not to exceed 40°C.
2. The medium's pH value is between 5~9.
3. Liquid density does not exceed 1150 kg/m³3;
4. Long-term dive operations, with dive depths generally not exceeding 20 meters.
Key Points to Note:
Submersible mixers must be fully submerged in water for operation; they cannot be used in environments with flammable, explosive, or highly corrosive liquids. The steel expansion bolts must be securely fastened according to specifications, and the cables must be tightened and securely fastened after installation.
When selecting a diving propeller, if the impeller diameter exceeds 2M, it is recommended to use a gear reducer.
Performance Features:
1. Compact structure, easy operation and maintenance, convenient installation and repair, and long service life.
2. The impeller features an excellent hydraulic design structure, high work efficiency, and backward-curved blades with self-cleaning capabilities, preventing debris entanglement and blockage.
3. When used in conjunction with an aeration system, it significantly reduces energy consumption, increases oxygenation levels, and effectively prevents sedimentation.
4. Motor winding with F-grade insulation, IP68 protection rating, and selected bearings with anti-condensation devices for the motor, ensuring safer operation.
5. Two mechanical seals; the mechanical seals are sealed with silicon carbide material, and the rubber material is fluoroelastomer.
Model Representation Method:
Performance Parameters:
The mixer operates at a rated voltage of 380V, frequency of 50Hz, with a F-grade winding insulation and IP68 protection rating, under working mode I.
Product Application
The QJB Submersible Propeller is a low-speed flow series mixer, suitable for aeration and anaerobic tanks in industrial and urban wastewater treatment plants. It generates a strong water flow with low tangential velocity, which can be used for water circulation in the tank and to create water currents during nitrification, denitrification, and phosphorus removal stages.
Product Features
1. The QJB Submersible Propulsion is compact in structure, easy to operate and maintain, convenient for installation and repair, and has a long service life.
2. The impeller features an excellent hydraulic design structure, high work efficiency, and the swept-back blades have an auto-cleaning function to prevent debris entanglement and blockage.
3. Mixing with the aeration system can significantly reduce energy consumption, increase oxygenation levels, and effectively prevent sedimentation.
4. The motor winding insulation is F-grade, with a protection rating of IP68. It features imported bearings and a patented anti-condensation device for the motor, ensuring enhanced safety and reliability in operation.
5. Two mechanical seals, made of tungsten carbide. All exposed fasteners are made of stainless steel.
Installation System:
Selection Considerations:
Selecting the right submersible flow accelerator is a complex task, as the correctness of the selection directly impacts the normal operation of the equipment. The principle of selection should be to ensure the agitator operates efficiently within an appropriate volume, usually determined by flow rate. According to the different process requirements of wastewater treatment plants, the agitator flow rate should be maintained between 0.15~0.3 m/s. Flow rates below 0.15 m/s will not achieve the desired push-pull mixing effect, and rates above 0.3 m/s can affect process efficiency and lead to waste. Therefore, prior to selection, it's crucial to first determine the application of the submersible mixer, such as in a wastewater, sludge, or biochemical pond; followed by the medium parameters like suspended solids content, viscosity, temperature, and pH value; and also the pool's shape and depth.
The required matching power for a mixer is determined by its volume, the density of the mixing liquid, and the depth of mixing, with one or more mixers chosen based on the specific circumstances.
Low-speed Turbulent Flow Type:
1. Determine the mixing tank type correction factor according to Figure B1 or Table B1.
2. Determine the sludge correction factor for the medium to be mixed based on Figure B2 or Table B2.
3. Determine the work consumed per unit volume based on the initial flow velocity y of the mixing medium, as indicated in Figure B3.
4. Calculate the flow rate of the agitator by multiplying the initial flow velocity of the stirring medium (y) by the cross-sectional area formed by the impeller's rotation.
5. Multiply the flow rate of the mixer by the power consumption per unit flow, then by the sludge correction factor and the pond type correction factor to obtain the total power required for the entire pond medium.
Dive Propulsion Flow Field Diagram:
The following flow field is under the condition of clear water with a boundary water velocity of V=0.1 m/s:
Installation Location Selection:
