QJB model submerged mixer application:
The QJB type submersible mixer is divided into two main series: mixing and low-speed propulsion.
The Mixed Series agitators are suitable for wastewater treatment plants and industrial processes to agitate liquids containing suspended solids.
Low-speed Turbulator Series Mixers are suitable for industrial and urban wastewater treatment plant aeration basins, generating strong water currents with low tangential flow, which can be used to create water currents for circulation and stages such as nitrification, denitrification, and phosphorus removal.
QJB Type Submersible Mixing Pump Performance Features
1. The QJB type submersible mixer features a compact structure, simple operation and maintenance, easy installation and repair, and a long service life.
2. The impeller features a hydraulic design structure with high work efficiency. The swept-back blades have self-cleaning capabilities, preventing debris entanglement and blockage.
3. Mixing with an aeration system significantly reduces energy consumption, improves oxygenation levels, and effectively prevents sedimentation.
4. The motor winding has an insulation grade of level, a protection grade of IP68, and is equipped with imported bearings and a patented anti-condensation device for the motor, ensuring enhanced safety and reliability in motor operation.
5. The mechanical seals are made of tungsten carbide-tungsten carbide. All exposed fasteners are made of stainless steel.
QJB model submerged mixer, suitable for use in a wide range of applications.
The blender should be able to operate continuously under the following conditions:
1) Maximum medium temperature does not exceed 40℃;
2) The medium's pH value is between 5-9.
3) Liquid density not to exceed 1.15 kg/m³.
4) Long-term dive operations, with dive depths generally not exceeding 20 meters.
Selection Considerations for QJB Type Submersible Mixers
Selecting a submersible mixer is a complex task, as the correctness of the selection directly affects the normal operation of the equipment. The principle of selection is to ensure that the mixer performs its mixing function fully within an appropriate volume, usually determined by flow rate. According to the different process requirements of wastewater treatment plants, the mixer flow rate should be maintained between 0.15~0.3 m/s. A flow rate below 0.15 m/s fails to achieve the desired push flow mixing effect, while a flow rate above 0.3 m/s can affect the process efficiency and lead to waste. Therefore, before selecting, first determine the application of the QJB mixer, such as in sewage ponds, sludge ponds, or biochemical ponds; secondly, consider the medium parameters like suspended solids content, viscosity, temperature, and pH value; and finally, the shape and depth of the pond.
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. Steel expansion bolts must be secured according to specifications, and the cables must be tightened and secured after installation.
When selecting a diving propeller, if the diameter of the blades exceeds 2M, it is recommended to use a gear reducer.
The required配套power for a diving mixer is determined by the volume size, the density of the mixing liquid, and the mixing depth. A single mixer or multiple mixers are used based on the specific circumstances.
QJB Submersible Mixers Installation System
The dedicated installation system for submersible mixers allows for quick assembly and disassembly without the need to drain the pool water.
When the pool depth H is less than 4 meters, it is recommended to use System I for installation. The submersible mixer's submersion depth can be adjusted vertically as needed, and it can rotate up to ±60° around the guide rod in the horizontal plane. The base, support frame, and lower support bracket of the hoisting system are all fixed with expansion bolts, and no pre-drilled holes are required.
When the pool depth H is greater than 4 meters, it is recommended to use System II, which requires a concrete foundation (or a steel structure base) at the bottom of the pool. The anchoring points for the lifting system base, steel rope bracket, and guide base are all fixed with expansion bolts, without the need for pre-drilled holes. System II utilizes guide steel ropes instead of guide rods, offering convenient transportation and simple on-site installation. This system fundamentally avoids issues such as bending or deformation of guide rods during transportation, which can affect normal use. It also effectively improves situations where normal lifting is impossible due to installation errors of the guide rods in pools with excessive depth. The installation conditions with cantilevered pool tops (as shown) are even more convenient and reliable.
When placing an order, please provide the pool depth H and the pool type diagram so that the factory can determine the size of the guide rod or guide wire during processing. The material for the installation system is made of stainless steel (or carbon steel). In the installation system, multiple submersible mixers can share a single lifting device, excluding any special requirements from the user.
The QJB mixer's dedicated installation system allows for quick assembly and disassembly of the submersible mixer without the need to drain the pond's wastewater.
System I is only applicable to mixers with a pool depth less than 4 meters, models QJB0.85/8-260/3-740C and QJB1.5/6-260/3-980C, where I-1 can be adjusted in both horizontal and vertical directions.
System II, III, IV, and VI are suitable for pool depths of ≥4m. The guide rods can rotate horizontally around the axis of the guide rod, with a maximum rotation angle of -60° to +60°. When the pool depth exceeds 4 meters, an additional support frame should be added in the middle of the guide rod.
The support brackets and lower brackets are securely fastened to the pool wall and bottom with steel expansion bolts, no pre-drilled holes required.
The installation system of our submersible mixers is available in stainless steel and carbon steel with anti-corrosion options.
QJB Submersible Mixing Pump Installation Diagram
The guide rod or guide wire should be perpendicular to the horizontal, and can be adjusted with a plumb bob.
The hook should be tilted upward by 5°-10° from the horizontal plane when lifting the submerged mixer with the impeller end.
By adjusting the chain on the hoisting device, the submersible mixer descends along the guide rod or guide wire, ensuring that the hoisting hook and the center of gravity of the submersible mixer align vertically.
Ordering Instructions for QJB Type Submersible Mixers:
Please provide the following detailed information: ① Product name and model of the submersible mixer ② Submersible mixer diameter (mm) ③ Submersible mixer head (m) ④ Submersible mixer flow rate ⑤ Submersible mixer motor power (KW) ⑥ Submersible mixer speed (r/min) ⑦ Submersible mixer voltage (V) ⑧ Submersible mixer suction head (m) ⑨ Whether the submersible mixer comes with accessories, so we can select the correct model for you.
When the application is critical or the environment complex, please provide design drawings and detailed specifications. Our technical experts will assist in selecting and confirming the appropriate options for you.
After-sales service
We will continue to provide technical services and support to our clients. The duration is generally no less than one week.
Section 2: During the equipment warranty period, in the event of a system failure, our company will send a designated person to the equipment's location within 24 hours of receiving the customer's formal written notice. 24-hour issue resolution.
Section 3: After the equipment is delivered to the customer and upon completion of the initial installation and debugging, even after the warranty period of our company has expired, as long as there is an issue with our equipment, regardless of its size, and if the customer requests it, our company will continue to provide service as usual. All spare parts required by the customer will be supplied at the factory price.
Section 4. Product Quality Warranty: 12 months; no warranty for man-made or unintentional damage. The start of after-sales service is from the date of equipment delivery to the customer.
