double impeller mixing tank

Design of Multiple Impeller Stirred Tanks for the Mixing ... - CiteSeerX

Aubin J. and Xuereb C., 'Desgin of Multiple Impeller Stirred Tanks for the Mixing of Highly Viscous ... Abstract. The effect of multiple Intermig impeller configuration on hydrodynamics and mixing performance in a ... Intermig is an interference multistage counterflow impeller that has an inner pitched blade and an outer double.

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Agitator Impellers - ProQuip Inc. Mixing Solutions

ProQuip offers a complete range of process-specific impellers to optimize the performance of your industrial mixers. ... Impellers selected for optimal mixing process using design correlations. Conservative mechanical design criteria utilized and verified ... HiFlow™ Impellers. ProQuip Tank Agitator Impeller double pitched...

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A STUDY OF MIXING STRUCTURE IN STIRRED TANKS ...

Key words: Multiple Rushton impellers, four blades, six blades, stirred tank, numerical, experimental. ZIED DRISS ∗, SARHAN ... operation carried out in the mixer, the best choice for the geometry of the tank and the ...... in stirred tanks generated by the proximity impellers of a mono and double screws type with simple and...

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Solid-liquid mixing performance in a stirred tank with a double ...

The mixing performance of solid-liquid system was investigated in a stirred tank with a double rigid impeller, a double rigid-flexible impeller, a double punched rigid-flexible impeller, and a double punched rigid-flexible impeller coupled with a chaotic motor. The effects of the impeller types, the flexible connection piece...

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Mixing 101: Flow Patterns & Impellers | Dynamix Agitators

Sep 20, 2013 ... Unlike axial impellers, radial impellers are commonly selected for low level mixing (known as a tickler blade) or elongated tanks. They typically give high shear rates because of their angle of attack. They also have a relatively low pumping number, making them the most sensitive to viscosity. Radial...

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Mixing 101: Optimal Tank Design | Dynamix Agitators

Mar 10, 2015 ... For most mixing applications the ideal liquid level to tank diameter ratio is 0.8, however, any ratio that is close to 1-to-1 is sufficient. A ratio that is too small does not allow proper axial mixing in the tank. Anything less than a 0.6 ratio should be avoided. When the ratio is in excess of 1.4, dual impellers should...

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Mixing 101: 4 Impeller Types & Their Applications | Dynamix Agitators

Dec 6, 2011 ... The impeller is the component of a mixer that does the actual mixing by creating fluid flow and shear patterns. Let's look closer at impeller types. ... 3. Radial Blade. Ideal for applications where shear is the primary requirement, or where agitation close to the bottom of the tank is desired.

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Turbulent mixing in baffled stirred tanks with vertical-blade impellers

Turbulent Mixing in Baffled Stirred Tanks with Vertical-Blade Impellers. Mixing time and power consumption have been measured in baffled, paddle-agitated cylindrical tanks with single- and double-impellers, and mixing efficiency has been defined by a reciprocal of the product of the mixing time and power consumption.

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Mixer Impellers, Blades, Radial And Axial Flow Turbines | Mixer Direct

Get your mixing equipment from MixerDirect, we are your direct supplier for mixer impellers, radial and axial flow turbines, and agitator blades.

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Impellers - Chemineer

The highly efficient SC-3 Impeller's reduced weight allows for the use of longer shaft extensions for deeper tanks, and resolves associated critical speed limitations. The use of an SC-3 ... Chemineer simplifies double impeller configurations for sanitary mixing processes with its patent-pending Smoothline impeller design.

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Double vane type vertical axis mixer | Waste water treatment ...

METAWATER's "Double-vane-type vertical mixer" is a mixer for an acrophobic tank or anoxic tank realizing high maintainability by installing a drive unit above the ... Large-size impeller rotating with low speed generates intense downward flow and causes a dynamic movement within the entire aeration tank through large...

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Agitator Manufacturers | Agitator Suppliers - Mixer Manufacturers

Agitators are basically process aids because their main functions, including producing flow in a vessel and ensuring in-tank uniformity, are secondary to the whole ... Agitators that have impellers with higher motion capabilities or double impellers can be used for mixing high viscosity products such as grease lubricants,...

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Impellers - Industrial Mixer Impellers | INDCO

There are a multitude of mixing impeller designs available for industrial mixing, miscible liquids blending and solids suspension. Good material flow is essential to the successful execution of these processes. Hydrofoil impellers, marine style mixing propellers, axial flow turbines and radial flow turbines are all flow-producing...

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Sharpe Mixers Impeller Technology Brochure - Hayward Gordon

“Anchor” impeller are used to mix higher viscosity (NRe<200) products. • Scraper blades can be added to clean vessel walls. • Industrial or sanitary configuration available. • Multi-mixer systems available to add high shear. HLX-102: • Single and double helix impellers are best for blending viscous liquids (NRe<50).

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A more complete mix - ... for optimizing your tank - Alfa Laval

reduce energy consumption by as much as 80%. The Alfa Laval Rotary Jet Mixer creates savings in other ways. Driven by pump, they inject fluid, gas or powder through rotating nozzles beneath the liquid surface. No baffles are required, and the mixing heads double as tank cleaning equipment at the end of the mixing cycle...

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Double Impeller Mixing Tank-ZHONGJIAZG - zhongjia heavy industry

Beneficiation, industry, and every chemical industry. 2. For all kinds of metal ore, this machine is mainly used for mixing before flotation circuit. 3. Mixing other non-metallic minerals. 4. suitable for slurry with density of no more than 30%(by weight).

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"Frontmatter". In: Handbook of Industrial Mixing - Experts.com

cially near the tank walls, and the high-shear mixer creates dispersion, often of two phases, either two liquids or a liquid and solids. The double motion comes from two shafts with at least two impellers operating in the same tank. Other double-motion mixers have coaxial shafts with a close- clearance impeller and turbine...

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Flow Characteristics in Mixers Agitated by Helical Ribbon Blade ...

Apr 19, 2011 ... to solve the Navier-Stokes equations for the flow field. However, difficulties arise due to the rotation of the impeller in the vessel. In order to ease the problem, ... Keywords: mixing flows, stirred mixers, helical ribbon blade impellers, multiframe of reference, unstructured- .... It was shown that the dual impeller.

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The Effect of Impeller Type on Solids Suspension - LIGHTNIN, An ...

Jun 17, 2011 ... This video demonstrates how solids suspension within a vessel is effected by impeller type. A radial flow impeller (LIGHTNIN R100) is compared to a hydrofoil...

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the circulation of liquid in the mixing vessel equipped with different ...

Abstract. The aim of the article was the analysis of liquid flow of radial-axial circulation in the mixing vessel equipped with a dual impeller set, of which the lower impeller induces radial-axial liquid stream, while the upper is turbine disc impeller with vertical blades, ejecting the liquid radially. On the basis of measurements of...

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CFD Analysis of a Stirred Vessel Bioreactor with Double Pitch ... - ortus

the following simulated plots were also added: eddy diffusivity, shear rate, power vs Reynolds number, shaft power and torque. The reactor construction was a dish bottom with three baffles and two types of double impellers (Rushton and pitched blade). The volume of stirred tank was 5 L. Mixing process was simulated at a...

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CFD analysis of industrial multi-staged stirred vessels - OATAO

Keywords: CFD; Multiple impellers; Stirred vessel; Viscous mixing; Transient flow; Industrial application; Double flux impeller. 1. Introduction. The progress of computer fluid dynamics (CFD) for the last. 20 years has made it an important tool for process hydrody- namic understanding in stirred tanks. In a state-of-the-art in...

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Tackling Difficult Mixing Problems - AIChE

fluid motion, so the motion created by a mixer impeller in a viscous fluid may die out before it moves the entire contents of the tank. With all non-Newtonian fluids, the potential exists that a portion of a tank will remain unmixed .... recirculation loop instead of the double loop associated with a radial-flow impeller. Based on the...

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Comparison of flow patterns of dual rushton and CD-6 impellers ...

The flow patterns (parallel, merging and diverging) of dual CD-6 impeller has been modeled using computational fluid dynamics simulation in FLUENT software compared with dual Rushton impeller....

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CFD simulation of local and global mixing time in an agitated tank ...

Jan 14, 2017 ... The turbulence model is very critical to predicting mixing process in agitated tanks. On the basis of computational fluid dynamics(CFD) software package Fluent 6.2, the mixing characteristics in a tank agitated by dual six-blade-Rushton-turbines(6-DT) are predicted using the detached eddy simulation(DES)...

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UK-BROCHURE MIXING & PROCESS 1ere ... - Pump & Package

Simplicity and reliability are the two main characteristics of the POLYMIX mixer. The agitator is fitted with 2 up to 8 stages of twin-blades impellers, depending on vessel geometry and volume. The POLYMIX mixer is suitable for homogeneous holding of low viscosity products and thermal transfer operations. Main Benefits.

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L-5.Main mixing parameters in tank multi-stage impeller - VisiMix

MAIN MIXING PARAMETERS IN TANK WITH MULTI-STAGE IMPELLER. This example shows how to calculate main hydrodynamic characteristics and mixing parameters (the mixing time, circulation flow rate, etc.), and how to use VisiMix to improve the system design, in this case to decrease the mixing time and/or power...

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tank bottom mixer double mechanical seal serie 6100 - Inoxpa

instruction manual and that it be permanently available alongside the mixer or corresponding installation. Not only must the ... safety. • Connect the mixer to the tank before starting it up. ...... Attach the first rotating part of the double mechanical seal (08) to the impeller (21), and mount the assembly on the shaft. (05) making...

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Power and Mean Flow Characteristics in Mixing Vessels Agitated by ...

double for the double-stack configuration. The shear ribs below the impeller were the main contributor to the increased energy loss relative to a non-shear ribbed impeller and the small clearance had no major effect upon the power consumption. For the D/T= 1/3 hyperboloid stirrer the flow in the whole tank was rather...

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Oxygen Mass Transfer in an Aerated Stirred Tank with Double ...

The theory of oxygen transfer in the surface aerated tank is relevant to the mixing that occurs within the tank. Therefore, mixing is improved by adding extra impellers at the rotating shaft to enhance the contact area between liquid (water) and air phases [7]. As the effective resistance to the oxygen mass transfer that takes...

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Does My Industrial Mixer Need 2 Impellers?

Oct 13, 2016 ... When evaluating how good of a mix you're getting from your industrial mixer, understanding how large or small the impeller's “zone of control” is in the tank is very important. Fluid outside the impeller's zone of control could be causing longer than necessary mixing times, solids settling on the bottom of the...

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Lightnin Double Mixer Seal Emergency Repair + New Impellor Shaft ...

2.50" Lightnin Agitator seal with 7ft / 2.50" Dia. tank shaft & impeller sent in for repair. All product side metal parts were badly corroded. 2.50" Lightnin agitator seal stripped down. Lightnin seal shaft severely corroded on flange end. Impeller had broken / seized shaft in hub. New shaft machined for Lightnin seal. Lightnin seal...

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Understanding High Viscosity Mixing

A Reynolds number of 100,000 has been used as the baseline to compute power numbers for all impellers. ... Laminar impellers generally fill the entire mixing tank. .... Alternately, if the product will not tumble and tends to rotate with the blade, double-arm Z-type blades will force compounding and extrusion action, but at a...

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Tank Mixers - Drum Mixer - Ryan Herco Flow Solutions

Products 1 - 15 of 68 ... Tank mixers, drum mixers and barrel mixers with stainless steel impeller or propellers and shafts, available in multiple mounting configurations. High purity mixers in polypropylene, Teflon or 316 stainless steel.

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Mixing Impellers - ThomasNet

Results 1 - 25 of 26 ... Worldwide manufacturer of mixing impellers. Magnetic agitators, rotary jet mixers, top mounting agitators, bottom mounting agitators and side-mounting agitators are available for installation in pressurized and non-pressurized tanks. Sterile/aseptic and ATEX-certified agitators are also available. Agitators...

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Flow and Mixing Performance in Helical Ribbon Mixers

The base structure of the mixer is a cylindrical tank with diameter D = 144 mm, containing a rotating Helical Ribbon impellor. The flow field around three primary helical ribbon impellor configurations have been simulated using the SPH method. The three impellers are shown in Figure 1 and are specified as follows: 1.

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Energy efficiency of a deep hollow bladed impeller for mixing ...

May 18, 2017 ... The energy efficiency of a deep hollow blade disk turbine in unbaffled mixing vessel is determined in this article via numerical simulations. The vessel is fill... ... Other researchers interested to Newtonian fluids with curved blade impellers in single or dual arrangements. Concerning the curved blades, all of...

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Mixing Time: A CFD Approach

MIXING XVII. Mixing Time. ◇ Mixing time is the time taken to homogenize the liquid contents of the tank after a step change in composition. ◇ The transport of a tracer helps to understand the degree of homogeneity in the agitated tank. ➢ Circulation time used to gauge the bulk motion induced by the impeller(s). ➢ Mixing...

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Experimental measurement and computational ... - Semantic Scholar

fluid dynamics simulation of mixing in a stirred tank: a review. A. Ochienga*, M. Onyangob and K. Kiriamitic. Introduction. Mixing in stirred tanks is driven by the impeller-generated convective motion at larger scales, by turbulent transfer at smaller scales and diffusion at molecular scales.1 Smith2 reported that the lack of a...

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Impeller design for mixing of suspensions

In order to design mixing apparatuses it is important to know the reference state of just off-bottom particle suspension that is often defined as the state at which no particle remains in contact with the vessel bottom for longer than a certain time (e.g. 1 sec). The impeller speed corresponding to this state is referred to as the...

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