Comprehensive Mixing Solution Package Including Submersible Mixer, Guide Rail, Mounting Bracket, and Control Panel

Description

Submersible Mixers Description

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From an engineering perspective, submersible mixers are robust, integrated pump-motor units where the impeller is an extension of the motor shaft, all housed in a single, sealed unit. This hermetic design isolates all moving parts from the process fluid, making them ideal for abrasive or corrosive media. They are characterized by their specific hydraulic output (flow rate vs. head generated), which defines their mixing intensity, and are engineered to handle fluids with viscosities ranging from water-like to several thousand centipoise.

Submersible Mixers principle

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Component

• Motor
• Upper bearing
• Seal monitoring&indication
• Solids deflection ring
• Mechanical seal
• Axial flow propeller
• Bracket
• Control System
• Corrosion resistant shell

The fundamental principle is momentum transfer. The rotating impeller imparts kinetic energy to the surrounding fluid, creating a high-velocity jet. This jet entrains surrounding stationary fluid, creating a bulk flow that circulates throughout the entire tank volume. The design aims to minimize energy losses from turbulence at the impeller tip and instead convert maximum power into laminar, directional flow to achieve complete tank turnover with minimal power input.

Componente	Material
Shell	Stainless steel/GG25 cast iron
Impeller	Stainless steel/Fiberglass Polyurethane
Shaft	ASTM431 or 420 stainless steel
Mechanical seal	Corrosion resistant cemented tungsten carbide/or silicon carbide
Guide rod	ASTM304 Stainless steel
Lifting bracket	ASTM304 Stainless steel
Lifting cable	ASTM304 Stainless steel
Fasteners	ASTM321 Stainless steel

Submersible Mixers Parameter

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Energy-saving Submersible Mixers Selection

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Energy Efficiency Drivers
Efficiency is driven by:

• Hydraulic Profile Optimization: Impeller blade angle, diameter, and twist are precision-engineered using CFD to reduce drag and cavitation.
• Direct Drive Configuration: Eliminates gearbox losses associated with some top-entry mixers.
• High-Grade Lamination Steel Motors: Reduce core losses.
• System Matching: Correctly pairing mixer size and speed to the tank's hydraulic characteristics prevents oversizing, the largest source of energy waste.

Selection Engineering
Engineers select based on Reynolds Number for the application (laminar vs. turbulent mixing), Power Number (Np) of the impeller, and required Turnover Time. The key equation is P = Np * ρ * N³ * D⁵, where P is power, ρ is density, N is rotational speed, and D is impeller diameter. Selection involves solving for the optimal D and N that deliver the necessary flow (Q) within the power constraint, often using proprietary selection software provided by manufacturers.

Submersible Mixers Installation Method

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Installation is critical for performance.

Engineering drawings must specify:

• Mounting boss or nozzle specifications for fixed installations;
• Guide rail anchor load calculations accounting for hydrodynamic forces;
• Minimum submergence (Hmin), typically >3*D (impeller diameter) to prevent air draw;
• Clearance from obstructions;
• Cable routing to avoid stress. For large mixers, a support bridge or gantry is often required.

Submersible Mixers Factor

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Dominant factors are:

• Hydraulic Load on the bearings and shaft;
• Seal Chamber Pressure management; Motor Cooling efficiency in viscous media;
• NPSHa (Net Positive Suction Head available) to avoid cavitation at the impeller;
• Fatigue Life of components under cyclic loads.

Submersible Mixers Features

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• Standard features include: Double Mechanical Seals with oil-filled intermediate chamber and leakage sensor;
• Corrosion-Resistant Housing (SS 304/316 standard);
• Thermal Protection in the motor windings; Heavy-Duty Bearings with lifetime lubrication;
• Cable Entry Seal; and optional Impeller Clog Prevention designs and Explosion-Proof Enclosures.

Submersible Mixers Application

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1. Core applications span Wastewater Treatment (equalization basins, anoxic/anaerobic zones, sludge storage);
2. Biogas Production (digester tank mixing for uniform fermentation);
3. Chemical & Process Industries (mixing reactants, preventing sedimentation in storage tanks);
4. Food & Beverage (gentle mixing of ingredients);
5. Aquaculture (water circulation and aeration support);
6. Pulp & Paper (maintaining slurry consistency).

Supplier Information

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We are a professional supplier specializing in high-efficiency Submersible Mixers, offering customized engineering solutions, bench-scale testing services, and robust equipment designed for demanding industrial and municipal applications.

Contact us today for a free application review and mixer selection recommendation!

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