Dual-curved mixerFor complete sets of equipment (including self-protective devices), ensure that the equipment operates without the need for additional parts, and provide installation and debugging guidance for the complete set. The main supply content should at least include the following parts:
——Fully assembled mixer
——Variable Frequency Motor (with reducer and variable frequency inverter)
—— StandbyTools; Random Spare Parts
Applicable Voltage: 380V
Glass Reinforced Plastic (GRP) Impeller
Dual Curved Blender Specifications and Model
Dual Curved Blender Performance and Structure Description:
The dual-curved mixer is designed for operation in wastewater or sludge, ensuring that no fibers hang in any underwater location during operation. This guarantees uniform mixing in all sections of the pool, with no sludge sedimentation throughout and no dead corners.
Dual Curved BlenderPlease provide the Chinese content to be translated.24/7 operation, with a design lifespan of no less than 20 years. Continuous operation under full immersion is required, with smooth and vibration-free performance throughout the process, and a minimum of 10,000 hours of trouble-free operation.
Dual-curvedThe mixer shaft power should ensure complete water mixing, with an average flow rate at the bottom of the pool of ≥300mm/s. The motor power should be greater than 1.15 times the actual shaft power, and the mixer should not overload under the designed operating conditions.
All the weight of the double-cone mixer should be supported by the concrete floor, with the impeller positioned close to the bottom of the pool. No bearing support should be placed at the bottom. The main shaft of the mixer should be an integrated design directly connected to the reducer, and cannot be a segmented structure connected through a coupling. It is connected to the geared reducer motor via a cantilevered vertical shaft, which then transmits torque.
The turbine impeller should be in the form of a double-surface cone, semi-open, with guide vanes on the conical surface. The connection between the impeller and the shaft must be made using a countersunk nut, with no other methods accepted.
The direction of rotation for the double曲面 mixer impeller is determined by the actual wastewater flow state of the process, and can rotate clockwise or counterclockwise when viewed from above.
The motor reduction gears and mounting bases are installed and secured on the concrete floor slab. The motor design must comply with IEC standards, featuring F-grade insulation, power supply of 380V, 3-phase, 50HZ, and protection rating IP65. It can be started at least 12 times per hour.
Directly connected to the motor, the reducer utilizes helical gear reducers, with gear design conforming to DIN standards. The gears are made of alloy steel with a hard tooth surface, offering a service factor of ≥2.0 and a rated bearing life of ≥(L10) 100,000 hours.
Dual-curved mixer main materials
Mixer shaft high-strength thin-walled hollow pureGlass Reinforced PlasticGRPOr 304 stainless steel shaft
Turbine-type Propeller Fiberglass Reinforced PlasticGRP
Bolts, nuts, and washers in stainless steel304
Base Carbon Steel Corrosion Protection
Electrical Control Cabinet:Stainless Steel304
Double-Sided Curved Blender Corrosion Resistance
Duwan Environmental Manufacturing's materials for the full range of double曲面 mixers are designed to withstand the corrosive environment of wastewater plants. Unprotected or non-corrosion-resistant materials should be handled in accordance with the provisions of the general technical requirements clause.
Dual-Surface Blender Inspection and Testing
EquipmentFactory inspection and testing should be conducted prior to shipment.Please provide a product certification or quality certificate.
After installation, the equipment should be inspected in accordance with the requirements to ensure its performance meets the specified standards.
The mixer should run smoothly in the absence of water, with no sudden movements or vibrations.
Field load tests should be conducted, with the mixer operating under load for 24 hours under design operating conditions, ensuring the operating current does not exceed the motor's rated current. The uniformity of the mixer's blending meets the design requirements.
Dual-Surface Blender Attachments and Materials
Technical description of dual-curved mixer; simulation diagram; detailed layout of foundation bolts; electrical schematic, motor wiring diagram, control cabinet wiring diagram, and control principle diagram; mixer bottom flow diagram tailored for the pool type of this project; protective coating description; product manual and related materials.
Features of the double-cone mixer:
Smooth flow, three-dimensional circulation, and no dead spots from stirring.
2. Adjusting the flow rib height allows for adaptation to varying water depths.
3. Elastic fixed connection, smooth and reliable operation
4. The overall structure is compact, reliable in operation, easy to install and maintain, and requires minimal investment costs.
The impeller is made of fiberglass, capable of accommodating various operational conditions and boasting a long service life.
6. Suitable for applications involving mixtures of liquids, solids, and gases, it can replace existing mixing equipment, achieving three-dimensional helical mixing for more even blending. The alternating arrangement of left and right rotational directions enhances mixing efficiency.
7. The dual-curved mixer features a larger specific surface area impeller, with a lower power requirement, large circulating water flow, and low energy consumption, saving up to 30% to 50% more energy than traditional mixing methods.
